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 = method;
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 ctx = &((MonoMethodInflated*)method)->context;
3303 method = ((MonoMethodInflated*)method)->declaring;
3305 container = mono_method_get_generic_container (method);
3307 container = method->klass->generic_container;
3308 g_assert (container);
3310 invoke_sig = sig = mono_signature_no_pinvoke (method);
3317 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3318 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3321 cache_key = method->klass;
3322 } else if (static_method_with_first_arg_bound) {
3323 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3324 (GHashFunc)mono_signature_hash,
3325 (GCompareFunc)mono_metadata_signature_equal);
3327 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3329 res = mono_marshal_find_in_cache (cache, invoke_sig);
3332 cache_key = invoke_sig;
3333 } else if (callvirt) {
3334 GHashTable **cache_ptr;
3336 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3338 /* We need to cache the signature+method pair */
3339 mono_marshal_lock ();
3341 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3343 key.sig = invoke_sig;
3344 key.pointer = target_method;
3345 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3346 mono_marshal_unlock ();
3350 // Inflated methods should not be in this cache because it's not stored on the imageset.
3351 g_assert (!method->is_inflated);
3352 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3353 (GHashFunc)mono_signature_hash,
3354 (GCompareFunc)mono_metadata_signature_equal);
3355 res = mono_marshal_find_in_cache (cache, sig);
3361 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3362 static_sig->hasthis = 0;
3363 if (!static_method_with_first_arg_bound)
3364 invoke_sig = static_sig;
3366 if (static_method_with_first_arg_bound)
3367 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3368 else if (closed_over_null)
3369 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3371 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3373 name = mono_signature_to_name (invoke_sig, "invoke");
3375 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3377 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3381 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3383 /* allocate local 0 (object) */
3384 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3385 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3386 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3387 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3388 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3391 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3393 g_assert (sig->hasthis);
3396 * {type: sig->ret} res;
3397 * if (delegates == null) {
3398 * return this.<target> ( args .. );
3400 * int i = 0, len = this.delegates.Length;
3402 * res = this.delegates [i].Invoke ( args .. );
3403 * } while (++i < len);
3408 /* this wrapper can be used in unmanaged-managed transitions */
3409 emit_thread_interrupt_checkpoint (mb);
3411 /* delegates = this.delegates */
3412 mono_mb_emit_ldarg (mb, 0);
3413 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3414 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3415 mono_mb_emit_stloc (mb, local_delegates);
3417 /* if (delegates == null) */
3418 mono_mb_emit_ldloc (mb, local_delegates);
3419 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3421 /* return target.<target_method|method_ptr> ( args .. ); */
3423 /* target = d.target; */
3424 mono_mb_emit_ldarg (mb, 0);
3425 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3426 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3427 mono_mb_emit_stloc (mb, local_target);
3429 /*static methods with bound first arg can have null target and still be bound*/
3430 if (!static_method_with_first_arg_bound) {
3431 /* if target != null */
3432 mono_mb_emit_ldloc (mb, local_target);
3433 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3435 /* then call this->method_ptr nonstatic */
3438 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3440 mono_mb_emit_ldloc (mb, local_target);
3441 for (i = 0; i < sig->param_count; ++i)
3442 mono_mb_emit_ldarg (mb, i + 1);
3443 mono_mb_emit_ldarg (mb, 0);
3444 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3445 mono_mb_emit_byte (mb, CEE_LDIND_I);
3446 mono_mb_emit_ldarg (mb, 0);
3447 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3448 mono_mb_emit_byte (mb, CEE_LDIND_I);
3449 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3450 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3451 mono_mb_emit_byte (mb, CEE_RET);
3454 /* else [target == null] call this->method_ptr static */
3455 mono_mb_patch_branch (mb, pos0);
3459 if (!closed_over_null) {
3460 if (target_class->valuetype) {
3461 mono_mb_emit_ldarg (mb, 1);
3462 for (i = 1; i < sig->param_count; ++i)
3463 mono_mb_emit_ldarg (mb, i + 1);
3464 mono_mb_emit_op (mb, CEE_CALL, target_method);
3466 mono_mb_emit_ldarg (mb, 1);
3467 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3468 for (i = 1; i < sig->param_count; ++i)
3469 mono_mb_emit_ldarg (mb, i + 1);
3470 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3473 mono_mb_emit_byte (mb, CEE_LDNULL);
3474 for (i = 0; i < sig->param_count; ++i)
3475 mono_mb_emit_ldarg (mb, i + 1);
3476 mono_mb_emit_op (mb, CEE_CALL, target_method);
3479 if (static_method_with_first_arg_bound) {
3480 mono_mb_emit_ldloc (mb, local_target);
3481 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3482 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3484 for (i = 0; i < sig->param_count; ++i)
3485 mono_mb_emit_ldarg (mb, i + 1);
3486 mono_mb_emit_ldarg (mb, 0);
3487 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3488 mono_mb_emit_byte (mb, CEE_LDIND_I);
3489 mono_mb_emit_ldarg (mb, 0);
3490 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3491 mono_mb_emit_byte (mb, CEE_LDIND_I);
3492 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3493 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3496 mono_mb_emit_byte (mb, CEE_RET);
3498 /* else [delegates != null] */
3499 mono_mb_patch_branch (mb, pos2);
3501 /* len = delegates.Length; */
3502 mono_mb_emit_ldloc (mb, local_delegates);
3503 mono_mb_emit_byte (mb, CEE_LDLEN);
3504 mono_mb_emit_byte (mb, CEE_CONV_I4);
3505 mono_mb_emit_stloc (mb, local_len);
3508 mono_mb_emit_icon (mb, 0);
3509 mono_mb_emit_stloc (mb, local_i);
3511 pos1 = mono_mb_get_label (mb);
3513 /* d = delegates [i]; */
3514 mono_mb_emit_ldloc (mb, local_delegates);
3515 mono_mb_emit_ldloc (mb, local_i);
3516 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3517 mono_mb_emit_stloc (mb, local_d);
3519 /* res = d.Invoke ( args .. ); */
3520 mono_mb_emit_ldloc (mb, local_d);
3521 for (i = 0; i < sig->param_count; i++)
3522 mono_mb_emit_ldarg (mb, i + 1);
3524 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3527 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3528 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3531 mono_mb_emit_stloc (mb, local_res);
3534 mono_mb_emit_add_to_local (mb, local_i, 1);
3537 mono_mb_emit_ldloc (mb, local_i);
3538 mono_mb_emit_ldloc (mb, local_len);
3539 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3543 mono_mb_emit_ldloc (mb, local_res);
3544 mono_mb_emit_byte (mb, CEE_RET);
3546 mb->skip_visibility = 1;
3547 #endif /* DISABLE_JIT */
3549 info = mono_wrapper_info_create (mb, subtype);
3550 info->d.delegate_invoke.method = orig_method;
3555 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3556 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3557 } else if (callvirt) {
3558 new_key = g_new0 (SignaturePointerPair, 1);
3561 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3565 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3569 /* mono_method_print_code (res); */
3575 * the returned method invokes all methods in a multicast delegate.
3578 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3580 gboolean callvirt = FALSE;
3581 gboolean static_method_with_first_arg_bound = FALSE;
3582 MonoMethod *target_method = NULL;
3583 MonoMethodSignature *sig;
3585 sig = mono_signature_no_pinvoke (method);
3587 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3589 target_method = del->method;
3592 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3593 static_method_with_first_arg_bound = TRUE;
3594 target_method = del->method;
3597 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3601 MonoMethodSignature *ctor_sig;
3602 MonoMethodSignature *sig;
3605 /* protected by the marshal lock, contains CtorSigPair pointers */
3606 static GSList *strsig_list = NULL;
3608 static MonoMethodSignature *
3609 lookup_string_ctor_signature (MonoMethodSignature *sig)
3611 MonoMethodSignature *callsig;
3615 mono_marshal_lock ();
3617 for (item = strsig_list; item; item = item->next) {
3618 cs = (CtorSigPair *)item->data;
3619 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3620 * because it is lock-free.
3622 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3627 mono_marshal_unlock ();
3631 static MonoMethodSignature *
3632 add_string_ctor_signature (MonoMethod *method)
3634 MonoMethodSignature *callsig;
3637 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3638 callsig->ret = &mono_defaults.string_class->byval_arg;
3639 cs = g_new (CtorSigPair, 1);
3641 cs->ctor_sig = mono_method_signature (method);
3643 mono_marshal_lock ();
3644 strsig_list = g_slist_prepend (strsig_list, cs);
3645 mono_marshal_unlock ();
3650 * mono_marshal_get_string_ctor_signature:
3652 * Return the modified signature used by string ctors (they return the newly created
3655 MonoMethodSignature*
3656 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3658 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3660 sig = add_string_ctor_signature (method);
3666 get_runtime_invoke_type (MonoType *t, gboolean ret)
3669 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3671 /* Can't share this with 'I' as that needs another indirection */
3672 return &mono_defaults.int_class->this_arg;
3675 if (MONO_TYPE_IS_REFERENCE (t))
3676 return &mono_defaults.object_class->byval_arg;
3679 /* The result needs to be boxed */
3684 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3687 return &mono_defaults.sbyte_class->byval_arg;
3689 return &mono_defaults.int16_class->byval_arg;
3691 return &mono_defaults.int32_class->byval_arg;
3694 return &mono_defaults.int64_class->byval_arg;
3695 case MONO_TYPE_BOOLEAN:
3696 return &mono_defaults.byte_class->byval_arg;
3697 case MONO_TYPE_CHAR:
3698 return &mono_defaults.uint16_class->byval_arg;
3700 return &mono_defaults.int_class->byval_arg;
3701 case MONO_TYPE_VALUETYPE:
3702 if (t->data.klass->enumtype) {
3703 t = mono_class_enum_basetype (t->data.klass);
3713 * mono_marshal_get_runtime_invoke_sig:
3715 * Return a common signature used for sharing runtime invoke wrappers.
3717 static MonoMethodSignature*
3718 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3720 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3723 res->generic_param_count = 0;
3724 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3725 for (i = 0; i < res->param_count; ++i)
3726 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3732 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3734 /* Can't share wrappers which return a vtype since it needs to be boxed */
3735 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))
3738 return mono_metadata_signature_equal (sig1, sig2);
3746 * Emit the call to the wrapper method from a runtime invoke wrapper.
3749 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3750 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3752 gboolean virtual_, gboolean need_direct_wrapper)
3754 static MonoString *string_dummy = NULL;
3756 int *tmp_nullable_locals;
3757 gboolean void_ret = FALSE;
3758 gboolean string_ctor = method && method->string_ctor;
3760 /* to make it work with our special string constructors */
3761 if (!string_dummy) {
3762 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3763 string_dummy = mono_string_new_wrapper ("dummy");
3767 g_assert (sig->hasthis);
3768 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3773 if (mono_gc_is_moving ()) {
3774 mono_mb_emit_ptr (mb, &string_dummy);
3775 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3777 mono_mb_emit_ptr (mb, string_dummy);
3780 mono_mb_emit_ldarg (mb, 0);
3784 tmp_nullable_locals = g_new0 (int, sig->param_count);
3786 for (i = 0; i < sig->param_count; i++) {
3787 MonoType *t = sig->params [i];
3790 mono_mb_emit_ldarg (mb, 1);
3792 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3793 mono_mb_emit_byte (mb, CEE_ADD);
3797 mono_mb_emit_byte (mb, CEE_LDIND_I);
3798 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3799 * So to make this work we unbox it to a local variablee and push a reference to that.
3801 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3802 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3804 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3805 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3806 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3811 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3812 type = sig->params [i]->type;
3816 case MONO_TYPE_BOOLEAN:
3820 case MONO_TYPE_CHAR:
3829 mono_mb_emit_byte (mb, CEE_LDIND_I);
3830 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3832 case MONO_TYPE_STRING:
3833 case MONO_TYPE_CLASS:
3834 case MONO_TYPE_ARRAY:
3836 case MONO_TYPE_SZARRAY:
3837 case MONO_TYPE_OBJECT:
3838 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3840 case MONO_TYPE_GENERICINST:
3841 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3842 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3847 case MONO_TYPE_VALUETYPE:
3848 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3849 type = mono_class_enum_basetype (t->data.klass)->type;
3852 mono_mb_emit_byte (mb, CEE_LDIND_I);
3853 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3854 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3855 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3856 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3858 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3862 g_assert_not_reached ();
3867 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3868 } else if (need_direct_wrapper) {
3869 mono_mb_emit_op (mb, CEE_CALL, method);
3871 mono_mb_emit_ldarg (mb, 3);
3872 mono_mb_emit_calli (mb, callsig);
3875 if (sig->ret->byref) {
3877 g_assert_not_reached ();
3880 switch (sig->ret->type) {
3881 case MONO_TYPE_VOID:
3885 case MONO_TYPE_BOOLEAN:
3886 case MONO_TYPE_CHAR:
3899 case MONO_TYPE_VALUETYPE:
3900 case MONO_TYPE_TYPEDBYREF:
3901 case MONO_TYPE_GENERICINST:
3902 /* box value types */
3903 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3905 case MONO_TYPE_STRING:
3906 case MONO_TYPE_CLASS:
3907 case MONO_TYPE_ARRAY:
3908 case MONO_TYPE_SZARRAY:
3909 case MONO_TYPE_OBJECT:
3913 /* The result is an IntPtr */
3914 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3917 g_assert_not_reached ();
3921 mono_mb_emit_stloc (mb, loc_res);
3923 /* Convert back nullable-byref arguments */
3924 for (i = 0; i < sig->param_count; i++) {
3925 MonoType *t = sig->params [i];
3928 * Box the result and put it back into the array, the caller will have
3929 * to obtain it from there.
3931 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3932 mono_mb_emit_ldarg (mb, 1);
3933 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3934 mono_mb_emit_byte (mb, CEE_ADD);
3936 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3937 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3939 mono_mb_emit_byte (mb, CEE_STIND_REF);
3943 g_free (tmp_nullable_locals);
3947 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3948 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3949 gboolean virtual_, gboolean need_direct_wrapper)
3952 MonoExceptionClause *clause;
3953 int loc_res, loc_exc;
3955 /* The wrapper looks like this:
3961 * } catch (Exception e) {
3969 /* allocate local 0 (object) tmp */
3970 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3971 /* allocate local 1 (object) exc */
3972 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3974 /* *exc is assumed to be initialized to NULL by the caller */
3976 mono_mb_emit_byte (mb, CEE_LDARG_2);
3977 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3982 labels [1] = mono_mb_get_label (mb);
3983 emit_thread_force_interrupt_checkpoint (mb);
3984 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3986 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3988 /* Add a try clause around the call */
3989 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3990 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3991 clause->data.catch_class = mono_defaults.exception_class;
3992 clause->try_offset = labels [1];
3993 clause->try_len = mono_mb_get_label (mb) - labels [1];
3995 clause->handler_offset = mono_mb_get_label (mb);
3998 mono_mb_emit_stloc (mb, loc_exc);
3999 mono_mb_emit_byte (mb, CEE_LDARG_2);
4000 mono_mb_emit_ldloc (mb, loc_exc);
4001 mono_mb_emit_byte (mb, CEE_STIND_REF);
4003 mono_mb_emit_branch (mb, CEE_LEAVE);
4005 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4007 mono_mb_set_clauses (mb, 1, clause);
4009 mono_mb_patch_branch (mb, labels [2]);
4010 mono_mb_emit_ldloc (mb, loc_res);
4011 mono_mb_emit_byte (mb, CEE_RET);
4016 mono_mb_patch_branch (mb, labels [0]);
4017 emit_thread_force_interrupt_checkpoint (mb);
4018 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4020 mono_mb_emit_ldloc (mb, 0);
4021 mono_mb_emit_byte (mb, CEE_RET);
4026 * generates IL code for the runtime invoke function
4027 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4029 * we also catch exceptions if exc != null
4030 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4031 * it means that the compiled code for METHOD does not have to be looked up
4032 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4033 * its METHOD argument.
4036 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4038 MonoMethodSignature *sig, *csig, *callsig;
4039 MonoMethodBuilder *mb;
4040 GHashTable *cache = NULL;
4041 MonoClass *target_klass;
4042 MonoMethod *res = NULL;
4043 static MonoMethodSignature *cctor_signature = NULL;
4044 static MonoMethodSignature *finalize_signature = NULL;
4046 const char *param_names [16];
4047 gboolean need_direct_wrapper = FALSE;
4052 if (!cctor_signature) {
4053 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4054 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4056 if (!finalize_signature) {
4057 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4058 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4059 finalize_signature->hasthis = 1;
4063 need_direct_wrapper = TRUE;
4066 * Use a separate cache indexed by methods to speed things up and to avoid the
4067 * boundless mempool growth caused by the signature_dup stuff below.
4070 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4072 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4074 res = mono_marshal_find_in_cache (cache, method);
4078 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4079 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4081 * Array Get/Set/Address methods. The JIT implements them using inline code
4082 * so we need to create an invoke wrapper which calls the method directly.
4084 need_direct_wrapper = TRUE;
4087 if (method->string_ctor) {
4088 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4090 callsig = add_string_ctor_signature (method);
4091 /* Can't share this as we push a string as this */
4092 need_direct_wrapper = TRUE;
4094 if (method_is_dynamic (method))
4095 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4097 callsig = mono_method_signature (method);
4100 sig = mono_method_signature (method);
4102 target_klass = get_wrapper_target_class (method->klass->image);
4104 /* Try to share wrappers for non-corlib methods with simple signatures */
4105 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4106 callsig = cctor_signature;
4107 target_klass = mono_defaults.object_class;
4108 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4109 callsig = finalize_signature;
4110 target_klass = mono_defaults.object_class;
4113 if (need_direct_wrapper) {
4114 /* Already searched at the start */
4116 MonoMethodSignature *tmp_sig;
4118 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4119 GHashTable **cache_table = NULL;
4121 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4122 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4124 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4126 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4127 (GCompareFunc)runtime_invoke_signature_equal);
4129 /* from mono_marshal_find_in_cache */
4130 mono_marshal_lock ();
4131 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4132 mono_marshal_unlock ();
4139 /* Make a copy of the signature from the image mempool */
4141 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4145 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4147 csig->ret = &mono_defaults.object_class->byval_arg;
4148 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4149 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4151 csig->params [0] = &mono_defaults.object_class->byval_arg;
4152 csig->params [1] = &mono_defaults.int_class->byval_arg;
4153 csig->params [2] = &mono_defaults.int_class->byval_arg;
4154 csig->params [3] = &mono_defaults.int_class->byval_arg;
4157 /* This is called from runtime code so it has to be cdecl */
4158 csig->call_convention = MONO_CALL_C;
4161 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4162 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4166 param_names [0] = "this";
4167 param_names [1] = "params";
4168 param_names [2] = "exc";
4169 param_names [3] = "method";
4170 mono_mb_set_param_names (mb, param_names);
4172 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4175 if (need_direct_wrapper) {
4177 mb->skip_visibility = 1;
4179 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4180 info->d.runtime_invoke.method = method;
4181 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4183 /* taken from mono_mb_create_and_cache */
4184 mono_marshal_lock ();
4185 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4186 mono_marshal_unlock ();
4188 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4189 info->d.runtime_invoke.sig = callsig;
4191 /* Somebody may have created it before us */
4194 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4196 mono_marshal_lock ();
4197 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4199 GHashTable *direct_cache;
4201 g_hash_table_insert (cache, callsig, res);
4202 /* Can't insert it into wrapper_hash since the key is a signature */
4203 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4205 g_hash_table_insert (direct_cache, method, res);
4207 mono_free_method (newm);
4209 mono_marshal_unlock ();
4212 /* end mono_mb_create_and_cache */
4221 * mono_marshal_get_runtime_invoke_dynamic:
4223 * Return a method which can be used to invoke managed methods from native code
4225 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4226 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4227 * ARGS should point to an architecture specific structure containing
4228 * the arguments and space for the return value.
4229 * The other arguments are the same as for runtime_invoke (), except that
4230 * ARGS should contain the this argument too.
4231 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4232 * is only one copy of it, which is useful in full-aot.
4235 mono_marshal_get_runtime_invoke_dynamic (void)
4237 static MonoMethod *method;
4238 MonoMethodSignature *csig;
4239 MonoExceptionClause *clause;
4240 MonoMethodBuilder *mb;
4248 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4250 csig->ret = &mono_defaults.void_class->byval_arg;
4251 csig->params [0] = &mono_defaults.int_class->byval_arg;
4252 csig->params [1] = &mono_defaults.int_class->byval_arg;
4253 csig->params [2] = &mono_defaults.int_class->byval_arg;
4254 csig->params [3] = &mono_defaults.int_class->byval_arg;
4256 name = g_strdup ("runtime_invoke_dynamic");
4257 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4261 /* allocate local 0 (object) tmp */
4262 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4263 /* allocate local 1 (object) exc */
4264 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4266 /* cond set *exc to null */
4267 mono_mb_emit_byte (mb, CEE_LDARG_1);
4268 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4269 mono_mb_emit_byte (mb, 3);
4270 mono_mb_emit_byte (mb, CEE_LDARG_1);
4271 mono_mb_emit_byte (mb, CEE_LDNULL);
4272 mono_mb_emit_byte (mb, CEE_STIND_REF);
4274 emit_thread_force_interrupt_checkpoint (mb);
4276 mono_mb_emit_byte (mb, CEE_LDARG_0);
4277 mono_mb_emit_byte (mb, CEE_LDARG_2);
4278 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4279 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4281 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4283 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4284 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4285 clause->try_len = mono_mb_get_label (mb);
4288 clause->data.filter_offset = mono_mb_get_label (mb);
4290 mono_mb_emit_byte (mb, CEE_POP);
4291 mono_mb_emit_byte (mb, CEE_LDARG_1);
4292 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4293 mono_mb_emit_byte (mb, CEE_PREFIX1);
4294 mono_mb_emit_byte (mb, CEE_CGT_UN);
4295 mono_mb_emit_byte (mb, CEE_PREFIX1);
4296 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4298 clause->handler_offset = mono_mb_get_label (mb);
4301 /* store exception */
4302 mono_mb_emit_stloc (mb, 1);
4304 mono_mb_emit_byte (mb, CEE_LDARG_1);
4305 mono_mb_emit_ldloc (mb, 1);
4306 mono_mb_emit_byte (mb, CEE_STIND_REF);
4308 mono_mb_emit_byte (mb, CEE_LDNULL);
4309 mono_mb_emit_stloc (mb, 0);
4311 /* Check for the abort exception */
4312 mono_mb_emit_ldloc (mb, 1);
4313 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4314 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4316 /* Delay the abort exception */
4317 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4319 mono_mb_patch_short_branch (mb, posna);
4320 mono_mb_emit_branch (mb, CEE_LEAVE);
4322 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4324 mono_mb_set_clauses (mb, 1, clause);
4327 mono_mb_patch_branch (mb, pos);
4328 //mono_mb_emit_ldloc (mb, 0);
4329 mono_mb_emit_byte (mb, CEE_RET);
4330 #endif /* DISABLE_JIT */
4332 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4334 mono_marshal_lock ();
4335 /* double-checked locking */
4337 method = mono_mb_create (mb, csig, 16, info);
4339 mono_marshal_unlock ();
4347 * mono_marshal_get_runtime_invoke_for_sig:
4349 * Return a runtime invoke wrapper for a given signature.
4352 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4354 MonoMethodSignature *csig, *callsig;
4355 MonoMethodBuilder *mb;
4357 GHashTable *cache = NULL;
4358 GHashTable **cache_table = NULL;
4359 MonoMethod *res = NULL;
4361 const char *param_names [16];
4364 /* A simplified version of mono_marshal_get_runtime_invoke */
4366 image = mono_defaults.corlib;
4368 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4370 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4372 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4373 (GCompareFunc)runtime_invoke_signature_equal);
4375 /* from mono_marshal_find_in_cache */
4376 mono_marshal_lock ();
4377 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4378 mono_marshal_unlock ();
4385 /* Make a copy of the signature from the image mempool */
4386 callsig = mono_metadata_signature_dup_full (image, callsig);
4388 csig = mono_metadata_signature_alloc (image, 4);
4389 csig->ret = &mono_defaults.object_class->byval_arg;
4390 csig->params [0] = &mono_defaults.object_class->byval_arg;
4391 csig->params [1] = &mono_defaults.int_class->byval_arg;
4392 csig->params [2] = &mono_defaults.int_class->byval_arg;
4393 csig->params [3] = &mono_defaults.int_class->byval_arg;
4396 /* This is called from runtime code so it has to be cdecl */
4397 csig->call_convention = MONO_CALL_C;
4400 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4401 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4405 param_names [0] = "this";
4406 param_names [1] = "params";
4407 param_names [2] = "exc";
4408 param_names [3] = "method";
4409 mono_mb_set_param_names (mb, param_names);
4411 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4414 /* taken from mono_mb_create_and_cache */
4415 mono_marshal_lock ();
4416 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4417 mono_marshal_unlock ();
4419 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4420 info->d.runtime_invoke.sig = callsig;
4422 /* Somebody may have created it before us */
4425 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4427 mono_marshal_lock ();
4428 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4431 g_hash_table_insert (cache, callsig, res);
4433 mono_free_method (newm);
4435 mono_marshal_unlock ();
4438 /* end mono_mb_create_and_cache */
4447 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4449 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4450 klass->name_space, klass->name);
4452 mono_mb_emit_exception_marshal_directive (mb, msg);
4457 * generates IL code for the icall wrapper (the generated method
4458 * calls the unmanaged code in func)
4461 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4463 MonoMethodSignature *csig, *csig2;
4464 MonoMethodBuilder *mb;
4469 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4470 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4473 g_assert (sig->pinvoke);
4475 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4477 mb->method->save_lmf = 1;
4479 /* Add an explicit this argument */
4481 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4483 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4487 mono_mb_emit_byte (mb, CEE_LDARG_0);
4489 for (i = 0; i < sig->param_count; i++)
4490 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4492 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4493 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4494 mono_mb_emit_calli (mb, csig2);
4495 if (check_exceptions)
4496 emit_thread_interrupt_checkpoint (mb);
4497 mono_mb_emit_byte (mb, CEE_RET);
4500 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4502 if (csig->call_convention == MONO_CALL_VARARG)
4503 csig->call_convention = 0;
4505 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4506 info->d.icall.func = (gpointer)func;
4507 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4514 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4515 MonoMarshalSpec *spec,
4516 int conv_arg, MonoType **conv_arg_type,
4517 MarshalAction action)
4520 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4521 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4527 static MonoClass *ICustomMarshaler = NULL;
4528 static MonoMethod *cleanup_native, *cleanup_managed;
4529 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4530 MonoMethod *get_instance = NULL;
4531 MonoMethodBuilder *mb = m->mb;
4532 char *exception_msg = NULL;
4536 if (!ICustomMarshaler) {
4537 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4539 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4540 goto handle_exception;
4543 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4544 g_assert (cleanup_native);
4545 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4546 g_assert (cleanup_managed);
4547 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4548 g_assert (marshal_managed_to_native);
4549 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4550 g_assert (marshal_native_to_managed);
4552 mono_memory_barrier ();
4553 ICustomMarshaler = klass;
4556 if (spec->data.custom_data.image)
4557 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4559 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4560 g_assert (mtype != NULL);
4561 mono_error_assert_ok (&error);
4562 mklass = mono_class_from_mono_type (mtype);
4563 g_assert (mklass != NULL);
4565 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4566 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4568 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4570 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4571 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4572 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4573 (get_sig->params [0]->type != MONO_TYPE_STRING))
4574 get_instance = NULL;
4578 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);
4581 /* Throw exception and emit compensation code if neccesary */
4582 if (exception_msg) {
4584 case MARSHAL_ACTION_CONV_IN:
4585 case MARSHAL_ACTION_CONV_RESULT:
4586 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4587 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4588 mono_mb_emit_byte (mb, CEE_POP);
4590 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4591 g_free (exception_msg);
4594 case MARSHAL_ACTION_PUSH:
4595 mono_mb_emit_byte (mb, CEE_LDNULL);
4603 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4604 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4607 case MARSHAL_ACTION_CONV_IN:
4609 case MONO_TYPE_CLASS:
4610 case MONO_TYPE_OBJECT:
4611 case MONO_TYPE_STRING:
4612 case MONO_TYPE_ARRAY:
4613 case MONO_TYPE_SZARRAY:
4614 case MONO_TYPE_VALUETYPE:
4618 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4619 g_assert_not_reached ();
4623 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4625 mono_mb_emit_byte (mb, CEE_LDNULL);
4626 mono_mb_emit_stloc (mb, conv_arg);
4628 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4631 /* Minic MS.NET behavior */
4632 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4635 /* Check for null */
4636 mono_mb_emit_ldarg (mb, argnum);
4638 mono_mb_emit_byte (mb, CEE_LDIND_I);
4639 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4641 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4643 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4645 mono_mb_emit_ldarg (mb, argnum);
4647 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4649 if (t->type == MONO_TYPE_VALUETYPE) {
4651 * Since we can't determine the type of the argument, we
4652 * will assume the unmanaged function takes a pointer.
4654 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4656 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4659 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4660 mono_mb_emit_stloc (mb, conv_arg);
4662 mono_mb_patch_branch (mb, pos2);
4665 case MARSHAL_ACTION_CONV_OUT:
4666 /* Check for null */
4667 mono_mb_emit_ldloc (mb, conv_arg);
4668 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4671 mono_mb_emit_ldarg (mb, argnum);
4673 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4675 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4677 mono_mb_emit_ldloc (mb, conv_arg);
4678 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4679 mono_mb_emit_byte (mb, CEE_STIND_REF);
4680 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4681 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4683 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4685 mono_mb_emit_ldloc (mb, conv_arg);
4686 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4688 /* We have nowhere to store the result */
4689 mono_mb_emit_byte (mb, CEE_POP);
4692 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4694 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4696 mono_mb_emit_ldloc (mb, conv_arg);
4698 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4700 mono_mb_patch_branch (mb, pos2);
4703 case MARSHAL_ACTION_PUSH:
4705 mono_mb_emit_ldloc_addr (mb, conv_arg);
4707 mono_mb_emit_ldloc (mb, conv_arg);
4710 case MARSHAL_ACTION_CONV_RESULT:
4711 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4713 mono_mb_emit_stloc (mb, 3);
4715 mono_mb_emit_ldloc (mb, 3);
4716 mono_mb_emit_stloc (mb, loc1);
4718 /* Check for null */
4719 mono_mb_emit_ldloc (mb, 3);
4720 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4722 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4724 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4725 mono_mb_emit_byte (mb, CEE_DUP);
4727 mono_mb_emit_ldloc (mb, 3);
4728 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4729 mono_mb_emit_stloc (mb, 3);
4731 mono_mb_emit_ldloc (mb, loc1);
4732 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4734 mono_mb_patch_branch (mb, pos2);
4737 case MARSHAL_ACTION_MANAGED_CONV_IN:
4738 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4740 mono_mb_emit_byte (mb, CEE_LDNULL);
4741 mono_mb_emit_stloc (mb, conv_arg);
4743 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4746 /* Check for null */
4747 mono_mb_emit_ldarg (mb, argnum);
4749 mono_mb_emit_byte (mb, CEE_LDIND_I);
4750 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4752 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4753 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4755 mono_mb_emit_ldarg (mb, argnum);
4757 mono_mb_emit_byte (mb, CEE_LDIND_I);
4759 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4760 mono_mb_emit_stloc (mb, conv_arg);
4762 mono_mb_patch_branch (mb, pos2);
4765 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4766 g_assert (!t->byref);
4768 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4770 mono_mb_emit_stloc (mb, 3);
4772 mono_mb_emit_ldloc (mb, 3);
4773 mono_mb_emit_stloc (mb, loc1);
4775 /* Check for null */
4776 mono_mb_emit_ldloc (mb, 3);
4777 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4779 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4780 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4781 mono_mb_emit_byte (mb, CEE_DUP);
4783 mono_mb_emit_ldloc (mb, 3);
4784 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4785 mono_mb_emit_stloc (mb, 3);
4787 mono_mb_emit_ldloc (mb, loc1);
4788 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4790 mono_mb_patch_branch (mb, pos2);
4793 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4795 /* Check for null */
4796 mono_mb_emit_ldloc (mb, conv_arg);
4797 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4800 mono_mb_emit_ldarg (mb, argnum);
4802 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4804 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4806 mono_mb_emit_ldloc (mb, conv_arg);
4807 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4808 mono_mb_emit_byte (mb, CEE_STIND_I);
4811 /* Call CleanUpManagedData */
4812 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4814 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4816 mono_mb_emit_ldloc (mb, conv_arg);
4817 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4819 mono_mb_patch_branch (mb, pos2);
4823 g_assert_not_reached ();
4831 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4832 MonoMarshalSpec *spec,
4833 int conv_arg, MonoType **conv_arg_type,
4834 MarshalAction action)
4837 MonoMethodBuilder *mb = m->mb;
4840 case MARSHAL_ACTION_CONV_IN: {
4841 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4843 g_assert (t->type == MONO_TYPE_OBJECT);
4844 g_assert (!t->byref);
4846 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4847 mono_mb_emit_ldarg (mb, argnum);
4848 mono_mb_emit_icon (mb, encoding);
4849 mono_mb_emit_icon (mb, t->attrs);
4850 mono_mb_emit_icall (mb, mono_marshal_asany);
4851 mono_mb_emit_stloc (mb, conv_arg);
4855 case MARSHAL_ACTION_PUSH:
4856 mono_mb_emit_ldloc (mb, conv_arg);
4859 case MARSHAL_ACTION_CONV_OUT: {
4860 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4862 mono_mb_emit_ldarg (mb, argnum);
4863 mono_mb_emit_ldloc (mb, conv_arg);
4864 mono_mb_emit_icon (mb, encoding);
4865 mono_mb_emit_icon (mb, t->attrs);
4866 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4871 g_assert_not_reached ();
4878 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4879 MonoMarshalSpec *spec,
4880 int conv_arg, MonoType **conv_arg_type,
4881 MarshalAction action)
4884 MonoMethodBuilder *mb = m->mb;
4885 MonoClass *klass, *date_time_class;
4888 klass = mono_class_from_mono_type (t);
4890 date_time_class = mono_class_get_date_time_class ();
4893 case MARSHAL_ACTION_CONV_IN:
4894 if (klass == date_time_class) {
4895 /* Convert it to an OLE DATE type */
4896 static MonoMethod *to_oadate;
4899 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4900 g_assert (to_oadate);
4902 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4905 mono_mb_emit_ldarg (mb, argnum);
4906 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4909 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4911 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4913 mono_mb_emit_ldarg_addr (mb, argnum);
4914 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4915 mono_mb_emit_stloc (mb, conv_arg);
4919 mono_mb_patch_branch (mb, pos);
4923 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4924 klass->blittable || klass->enumtype)
4927 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4929 /* store the address of the source into local variable 0 */
4931 mono_mb_emit_ldarg (mb, argnum);
4933 mono_mb_emit_ldarg_addr (mb, argnum);
4935 mono_mb_emit_stloc (mb, 0);
4937 /* allocate space for the native struct and
4938 * store the address into local variable 1 (dest) */
4939 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4940 mono_mb_emit_byte (mb, CEE_PREFIX1);
4941 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4942 mono_mb_emit_stloc (mb, conv_arg);
4945 mono_mb_emit_ldloc (mb, 0);
4946 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4949 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4951 mono_mb_emit_ldloc (mb, conv_arg);
4952 mono_mb_emit_stloc (mb, 1);
4954 /* emit valuetype conversion code */
4955 emit_struct_conv (mb, klass, FALSE);
4959 mono_mb_patch_branch (mb, pos);
4962 case MARSHAL_ACTION_PUSH:
4963 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4965 g_assert (!t->byref);
4967 /* Have to change the signature since the vtype is passed byref */
4968 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4970 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4971 klass->blittable || klass->enumtype)
4972 mono_mb_emit_ldarg_addr (mb, argnum);
4974 mono_mb_emit_ldloc (mb, conv_arg);
4978 if (klass == date_time_class) {
4980 mono_mb_emit_ldloc_addr (mb, conv_arg);
4982 mono_mb_emit_ldloc (mb, conv_arg);
4986 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4987 klass->blittable || klass->enumtype) {
4988 mono_mb_emit_ldarg (mb, argnum);
4991 mono_mb_emit_ldloc (mb, conv_arg);
4993 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4994 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4998 case MARSHAL_ACTION_CONV_OUT:
4999 if (klass == date_time_class) {
5000 /* Convert from an OLE DATE type */
5001 static MonoMethod *from_oadate;
5006 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5008 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5009 g_assert (from_oadate);
5011 mono_mb_emit_ldarg (mb, argnum);
5012 mono_mb_emit_ldloc (mb, conv_arg);
5013 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5014 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5019 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5020 klass->blittable || klass->enumtype)
5024 /* dst = argument */
5025 mono_mb_emit_ldarg (mb, argnum);
5026 mono_mb_emit_stloc (mb, 1);
5028 mono_mb_emit_ldloc (mb, 1);
5029 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5031 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5032 /* src = tmp_locals [i] */
5033 mono_mb_emit_ldloc (mb, conv_arg);
5034 mono_mb_emit_stloc (mb, 0);
5036 /* emit valuetype conversion code */
5037 emit_struct_conv (mb, klass, TRUE);
5041 emit_struct_free (mb, klass, conv_arg);
5044 mono_mb_patch_branch (mb, pos);
5047 case MARSHAL_ACTION_CONV_RESULT:
5048 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5050 mono_mb_emit_stloc (mb, 3);
5054 /* load pointer to returned value type */
5055 g_assert (m->vtaddr_var);
5056 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5057 /* store the address of the source into local variable 0 */
5058 mono_mb_emit_stloc (mb, 0);
5060 mono_mb_emit_ldloc_addr (mb, 3);
5061 mono_mb_emit_stloc (mb, 1);
5063 /* emit valuetype conversion code */
5064 emit_struct_conv (mb, klass, TRUE);
5067 case MARSHAL_ACTION_MANAGED_CONV_IN:
5068 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5069 klass->blittable || klass->enumtype) {
5074 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5076 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5080 mono_mb_emit_ldarg (mb, argnum);
5082 mono_mb_emit_ldarg_addr (mb, argnum);
5083 mono_mb_emit_stloc (mb, 0);
5086 mono_mb_emit_ldloc (mb, 0);
5087 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5090 mono_mb_emit_ldloc_addr (mb, conv_arg);
5091 mono_mb_emit_stloc (mb, 1);
5093 /* emit valuetype conversion code */
5094 emit_struct_conv (mb, klass, TRUE);
5097 mono_mb_patch_branch (mb, pos);
5100 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5101 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5102 klass->blittable || klass->enumtype) {
5106 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5109 /* Check for null */
5110 mono_mb_emit_ldarg (mb, argnum);
5111 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5114 mono_mb_emit_ldloc_addr (mb, conv_arg);
5115 mono_mb_emit_stloc (mb, 0);
5118 mono_mb_emit_ldarg (mb, argnum);
5119 mono_mb_emit_stloc (mb, 1);
5121 /* emit valuetype conversion code */
5122 emit_struct_conv (mb, klass, FALSE);
5124 mono_mb_patch_branch (mb, pos2);
5127 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5128 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5129 klass->blittable || klass->enumtype) {
5130 mono_mb_emit_stloc (mb, 3);
5135 /* load pointer to returned value type */
5136 g_assert (m->vtaddr_var);
5137 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5139 /* store the address of the source into local variable 0 */
5140 mono_mb_emit_stloc (mb, 0);
5141 /* allocate space for the native struct and
5142 * store the address into dst_ptr */
5143 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5144 m->retobj_class = klass;
5145 g_assert (m->retobj_var);
5146 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5147 mono_mb_emit_byte (mb, CEE_CONV_I);
5148 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5149 mono_mb_emit_stloc (mb, 1);
5150 mono_mb_emit_ldloc (mb, 1);
5151 mono_mb_emit_stloc (mb, m->retobj_var);
5153 /* emit valuetype conversion code */
5154 emit_struct_conv (mb, klass, FALSE);
5158 g_assert_not_reached ();
5165 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5166 MonoMarshalSpec *spec,
5167 int conv_arg, MonoType **conv_arg_type,
5168 MarshalAction action)
5172 case MARSHAL_ACTION_CONV_IN:
5173 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5175 case MARSHAL_ACTION_MANAGED_CONV_IN:
5176 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5180 MonoMethodBuilder *mb = m->mb;
5181 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5182 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5186 case MARSHAL_ACTION_CONV_IN:
5187 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5188 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5191 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5194 mono_mb_emit_ldarg (mb, argnum);
5195 mono_mb_emit_byte (mb, CEE_LDIND_I);
5197 mono_mb_emit_ldarg (mb, argnum);
5200 if (conv == MONO_MARSHAL_CONV_INVALID) {
5201 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5202 mono_mb_emit_exception_marshal_directive (mb, msg);
5204 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5206 mono_mb_emit_stloc (mb, conv_arg);
5210 case MARSHAL_ACTION_CONV_OUT:
5211 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5212 if (conv == MONO_MARSHAL_CONV_INVALID) {
5213 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5214 mono_mb_emit_exception_marshal_directive (mb, msg);
5218 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5219 static MonoMethod *m;
5222 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5227 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5228 mono_mb_emit_exception_marshal_directive (mb, msg);
5233 * Have to allocate a new string with the same length as the original, and
5234 * copy the contents of the buffer pointed to by CONV_ARG into it.
5236 g_assert (t->byref);
5237 mono_mb_emit_ldarg (mb, argnum);
5238 mono_mb_emit_ldloc (mb, conv_arg);
5239 mono_mb_emit_ldarg (mb, argnum);
5240 mono_mb_emit_byte (mb, CEE_LDIND_I);
5241 mono_mb_emit_managed_call (mb, m, NULL);
5242 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5243 mono_mb_emit_byte (mb, CEE_STIND_REF);
5244 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5246 mono_mb_emit_ldarg (mb, argnum);
5247 mono_mb_emit_ldloc (mb, conv_arg);
5248 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5249 mono_mb_emit_byte (mb, stind_op);
5254 mono_mb_emit_ldloc (mb, conv_arg);
5255 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5256 mono_mb_emit_icall (mb, mono_free_bstr);
5258 mono_mb_emit_icall (mb, mono_marshal_free);
5262 case MARSHAL_ACTION_PUSH:
5263 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5264 mono_mb_emit_ldloc_addr (mb, conv_arg);
5266 mono_mb_emit_ldloc (mb, conv_arg);
5269 case MARSHAL_ACTION_CONV_RESULT:
5270 mono_mb_emit_stloc (mb, 0);
5272 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5273 if (conv == MONO_MARSHAL_CONV_INVALID) {
5274 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5275 mono_mb_emit_exception_marshal_directive (mb, msg);
5279 mono_mb_emit_ldloc (mb, 0);
5280 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5281 mono_mb_emit_stloc (mb, 3);
5283 /* free the string */
5284 mono_mb_emit_ldloc (mb, 0);
5285 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5286 mono_mb_emit_icall (mb, mono_free_bstr);
5288 mono_mb_emit_icall (mb, mono_marshal_free);
5291 case MARSHAL_ACTION_MANAGED_CONV_IN:
5292 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5294 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5297 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5301 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5302 if (conv == MONO_MARSHAL_CONV_INVALID) {
5303 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5304 mono_mb_emit_exception_marshal_directive (mb, msg);
5308 mono_mb_emit_ldarg (mb, argnum);
5310 mono_mb_emit_byte (mb, CEE_LDIND_I);
5311 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5312 mono_mb_emit_stloc (mb, conv_arg);
5315 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5319 mono_mb_emit_ldarg (mb, argnum);
5320 mono_mb_emit_ldloc (mb, conv_arg);
5321 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5322 mono_mb_emit_byte (mb, stind_op);
5327 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5328 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5329 /* We need to make a copy so the caller is able to free it */
5330 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5332 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5333 mono_mb_emit_stloc (mb, 3);
5337 g_assert_not_reached ();
5345 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5346 MonoMarshalSpec *spec, int conv_arg,
5347 MonoType **conv_arg_type, MarshalAction action)
5350 if (action == MARSHAL_ACTION_CONV_IN)
5351 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5353 MonoMethodBuilder *mb = m->mb;
5356 case MARSHAL_ACTION_CONV_IN: {
5357 MonoType *intptr_type;
5358 int dar_release_slot, pos;
5360 intptr_type = &mono_defaults.int_class->byval_arg;
5361 conv_arg = mono_mb_add_local (mb, intptr_type);
5362 *conv_arg_type = intptr_type;
5364 if (!sh_dangerous_add_ref)
5365 init_safe_handle ();
5367 mono_mb_emit_ldarg (mb, argnum);
5368 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5369 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5371 mono_mb_patch_branch (mb, pos);
5374 * My tests in show that ref SafeHandles are not really
5375 * passed as ref objects. Instead a NULL is passed as the
5378 mono_mb_emit_icon (mb, 0);
5379 mono_mb_emit_stloc (mb, conv_arg);
5383 /* Create local to hold the ref parameter to DangerousAddRef */
5384 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5386 /* set release = false; */
5387 mono_mb_emit_icon (mb, 0);
5388 mono_mb_emit_stloc (mb, dar_release_slot);
5390 /* safehandle.DangerousAddRef (ref release) */
5391 mono_mb_emit_ldarg (mb, argnum);
5392 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5393 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5395 /* Pull the handle field from SafeHandle */
5396 mono_mb_emit_ldarg (mb, argnum);
5397 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5398 mono_mb_emit_byte (mb, CEE_LDIND_I);
5399 mono_mb_emit_stloc (mb, conv_arg);
5404 case MARSHAL_ACTION_PUSH:
5406 mono_mb_emit_ldloc_addr (mb, conv_arg);
5408 mono_mb_emit_ldloc (mb, conv_arg);
5411 case MARSHAL_ACTION_CONV_OUT: {
5412 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5413 int dar_release_slot = conv_arg + 1;
5416 if (!sh_dangerous_release)
5417 init_safe_handle ();
5423 * My tests indicate that ref SafeHandles parameters are not actually
5424 * passed by ref, but instead a new Handle is created regardless of
5425 * whether a change happens in the unmanaged side.
5427 * Also, the Handle is created before calling into unmanaged code,
5428 * but we do not support that mechanism (getting to the original
5429 * handle) and it makes no difference where we create this
5431 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5433 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5436 /* refval = new SafeHandleDerived ()*/
5437 mono_mb_emit_ldarg (mb, argnum);
5438 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5439 mono_mb_emit_byte (mb, CEE_STIND_REF);
5441 /* refval.handle = returned_handle */
5442 mono_mb_emit_ldarg (mb, argnum);
5443 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5444 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5445 mono_mb_emit_ldloc (mb, conv_arg);
5446 mono_mb_emit_byte (mb, CEE_STIND_I);
5448 mono_mb_emit_ldloc (mb, dar_release_slot);
5449 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5450 mono_mb_emit_ldarg (mb, argnum);
5451 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5452 mono_mb_patch_branch (mb, label_next);
5457 case MARSHAL_ACTION_CONV_RESULT: {
5458 MonoMethod *ctor = NULL;
5459 int intptr_handle_slot;
5461 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5462 mono_mb_emit_byte (mb, CEE_POP);
5463 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5467 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5469 mono_mb_emit_byte (mb, CEE_POP);
5470 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5473 /* Store the IntPtr results into a local */
5474 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5475 mono_mb_emit_stloc (mb, intptr_handle_slot);
5477 /* Create return value */
5478 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5479 mono_mb_emit_stloc (mb, 3);
5481 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5482 mono_mb_emit_ldloc (mb, 3);
5483 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5484 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5485 mono_mb_emit_byte (mb, CEE_STIND_I);
5489 case MARSHAL_ACTION_MANAGED_CONV_IN:
5490 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5493 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5494 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5497 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5498 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5501 printf ("Unhandled case for MarshalAction: %d\n", action);
5509 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5510 MonoMarshalSpec *spec, int conv_arg,
5511 MonoType **conv_arg_type, MarshalAction action)
5514 if (action == MARSHAL_ACTION_CONV_IN)
5515 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5517 MonoMethodBuilder *mb = m->mb;
5520 case MARSHAL_ACTION_CONV_IN: {
5521 MonoType *intptr_type;
5523 intptr_type = &mono_defaults.int_class->byval_arg;
5524 conv_arg = mono_mb_add_local (mb, intptr_type);
5525 *conv_arg_type = intptr_type;
5528 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5529 mono_mb_emit_exception_marshal_directive (mb, msg);
5532 mono_mb_emit_ldarg_addr (mb, argnum);
5533 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5534 mono_mb_emit_byte (mb, CEE_ADD);
5535 mono_mb_emit_byte (mb, CEE_LDIND_I);
5536 mono_mb_emit_stloc (mb, conv_arg);
5540 case MARSHAL_ACTION_PUSH:
5541 mono_mb_emit_ldloc (mb, conv_arg);
5544 case MARSHAL_ACTION_CONV_OUT: {
5545 /* no resource release required */
5549 case MARSHAL_ACTION_CONV_RESULT: {
5550 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5551 mono_mb_emit_exception_marshal_directive (mb, msg);
5555 case MARSHAL_ACTION_MANAGED_CONV_IN:
5556 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5559 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5560 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5563 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5564 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5567 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5575 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5576 MonoMarshalSpec *spec,
5577 int conv_arg, MonoType **conv_arg_type,
5578 MarshalAction action)
5581 if (action == MARSHAL_ACTION_CONV_IN)
5582 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5584 MonoMethodBuilder *mb = m->mb;
5585 MonoClass *klass = mono_class_from_mono_type (t);
5589 case MARSHAL_ACTION_CONV_IN:
5590 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5591 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5593 m->orig_conv_args [argnum] = 0;
5595 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5596 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5597 mono_mb_emit_exception_marshal_directive (mb, msg);
5601 if (klass->delegate) {
5603 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5604 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5605 mono_mb_emit_exception_marshal_directive (mb, msg);
5607 mono_mb_emit_byte (mb, CEE_LDNULL);
5608 mono_mb_emit_stloc (mb, conv_arg);
5610 mono_mb_emit_ldarg (mb, argnum);
5611 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5612 mono_mb_emit_stloc (mb, conv_arg);
5614 } else if (klass == mono_defaults.stringbuilder_class) {
5615 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5616 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5620 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5621 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5622 mono_mb_emit_exception_marshal_directive (mb, msg);
5628 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5631 if (conv == MONO_MARSHAL_CONV_INVALID) {
5632 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5633 mono_mb_emit_exception_marshal_directive (mb, msg);
5637 mono_mb_emit_ldarg (mb, argnum);
5639 mono_mb_emit_byte (mb, CEE_LDIND_I);
5641 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5642 mono_mb_emit_stloc (mb, conv_arg);
5643 } else if (klass->blittable) {
5644 mono_mb_emit_byte (mb, CEE_LDNULL);
5645 mono_mb_emit_stloc (mb, conv_arg);
5647 mono_mb_emit_ldarg (mb, argnum);
5648 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5650 mono_mb_emit_ldarg (mb, argnum);
5651 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5652 mono_mb_emit_stloc (mb, conv_arg);
5654 mono_mb_patch_branch (mb, pos);
5657 mono_mb_emit_byte (mb, CEE_LDNULL);
5658 mono_mb_emit_stloc (mb, conv_arg);
5661 /* we dont need any conversions for out parameters */
5662 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5665 mono_mb_emit_ldarg (mb, argnum);
5666 mono_mb_emit_byte (mb, CEE_LDIND_I);
5669 mono_mb_emit_ldarg (mb, argnum);
5670 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5671 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5674 /* store the address of the source into local variable 0 */
5675 mono_mb_emit_stloc (mb, 0);
5676 mono_mb_emit_ldloc (mb, 0);
5677 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5679 /* allocate space for the native struct and store the address */
5680 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5681 mono_mb_emit_byte (mb, CEE_PREFIX1);
5682 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5683 mono_mb_emit_stloc (mb, conv_arg);
5686 /* Need to store the original buffer so we can free it later */
5687 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5688 mono_mb_emit_ldloc (mb, conv_arg);
5689 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5692 /* set the src_ptr */
5693 mono_mb_emit_ldloc (mb, 0);
5694 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5695 mono_mb_emit_stloc (mb, 0);
5698 mono_mb_emit_ldloc (mb, conv_arg);
5699 mono_mb_emit_stloc (mb, 1);
5701 /* emit valuetype conversion code */
5702 emit_struct_conv (mb, klass, FALSE);
5704 mono_mb_patch_branch (mb, pos);
5708 case MARSHAL_ACTION_CONV_OUT:
5709 if (klass == mono_defaults.stringbuilder_class) {
5711 MonoMarshalNative encoding;
5712 MonoMarshalConv conv;
5714 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5715 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5717 g_assert (encoding != -1);
5720 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5724 mono_mb_emit_ldarg (mb, argnum);
5725 mono_mb_emit_ldloc (mb, conv_arg);
5728 case MONO_NATIVE_LPWSTR:
5729 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5731 case MONO_NATIVE_LPSTR:
5732 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5735 g_assert_not_reached ();
5738 mono_mb_emit_byte (mb, CEE_STIND_REF);
5740 mono_mb_emit_ldarg (mb, argnum);
5741 mono_mb_emit_ldloc (mb, conv_arg);
5743 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5747 mono_mb_emit_ldloc (mb, conv_arg);
5748 mono_mb_emit_icall (mb, mono_marshal_free);
5753 if (klass->delegate) {
5755 mono_mb_emit_ldarg (mb, argnum);
5756 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5757 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5758 mono_mb_emit_ldloc (mb, conv_arg);
5759 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5760 mono_mb_emit_byte (mb, CEE_STIND_REF);
5765 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5766 /* allocate a new object */
5767 mono_mb_emit_ldarg (mb, argnum);
5768 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5769 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5770 mono_mb_emit_byte (mb, CEE_STIND_REF);
5773 /* dst = *argument */
5774 mono_mb_emit_ldarg (mb, argnum);
5777 mono_mb_emit_byte (mb, CEE_LDIND_I);
5779 mono_mb_emit_stloc (mb, 1);
5781 mono_mb_emit_ldloc (mb, 1);
5782 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5784 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5785 mono_mb_emit_ldloc (mb, 1);
5786 mono_mb_emit_icon (mb, sizeof (MonoObject));
5787 mono_mb_emit_byte (mb, CEE_ADD);
5788 mono_mb_emit_stloc (mb, 1);
5790 /* src = tmp_locals [i] */
5791 mono_mb_emit_ldloc (mb, conv_arg);
5792 mono_mb_emit_stloc (mb, 0);
5794 /* emit valuetype conversion code */
5795 emit_struct_conv (mb, klass, TRUE);
5797 /* Free the structure returned by the native code */
5798 emit_struct_free (mb, klass, conv_arg);
5800 if (m->orig_conv_args [argnum]) {
5802 * If the native function changed the pointer, then free
5803 * the original structure plus the new pointer.
5805 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5806 mono_mb_emit_ldloc (mb, conv_arg);
5807 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5809 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5810 g_assert (m->orig_conv_args [argnum]);
5812 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5815 mono_mb_emit_ldloc (mb, conv_arg);
5816 mono_mb_emit_icall (mb, mono_marshal_free);
5818 mono_mb_patch_branch (mb, pos2);
5822 /* Free the original structure passed to native code */
5823 emit_struct_free (mb, klass, conv_arg);
5825 mono_mb_patch_branch (mb, pos);
5828 case MARSHAL_ACTION_PUSH:
5830 mono_mb_emit_ldloc_addr (mb, conv_arg);
5832 mono_mb_emit_ldloc (mb, conv_arg);
5835 case MARSHAL_ACTION_CONV_RESULT:
5836 if (klass->delegate) {
5837 g_assert (!t->byref);
5838 mono_mb_emit_stloc (mb, 0);
5839 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5840 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5841 mono_mb_emit_ldloc (mb, 0);
5842 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5843 mono_mb_emit_stloc (mb, 3);
5846 mono_mb_emit_stloc (mb, 0);
5848 /* Make a copy since emit_conv modifies local 0 */
5849 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5850 mono_mb_emit_ldloc (mb, 0);
5851 mono_mb_emit_stloc (mb, loc);
5853 mono_mb_emit_byte (mb, CEE_LDNULL);
5854 mono_mb_emit_stloc (mb, 3);
5856 mono_mb_emit_ldloc (mb, 0);
5857 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5859 /* allocate result object */
5861 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5862 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5863 mono_mb_emit_stloc (mb, 3);
5867 mono_mb_emit_ldloc (mb, 3);
5868 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5869 mono_mb_emit_stloc (mb, 1);
5871 /* emit conversion code */
5872 emit_struct_conv (mb, klass, TRUE);
5874 emit_struct_free (mb, klass, loc);
5876 /* Free the pointer allocated by unmanaged code */
5877 mono_mb_emit_ldloc (mb, loc);
5878 mono_mb_emit_icall (mb, mono_marshal_free);
5879 mono_mb_patch_branch (mb, pos);
5883 case MARSHAL_ACTION_MANAGED_CONV_IN:
5884 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5886 if (klass->delegate) {
5887 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5888 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5889 mono_mb_emit_ldarg (mb, argnum);
5891 mono_mb_emit_byte (mb, CEE_LDIND_I);
5892 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5893 mono_mb_emit_stloc (mb, conv_arg);
5897 if (klass == mono_defaults.stringbuilder_class) {
5898 MonoMarshalNative encoding;
5900 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5903 g_assert (encoding == MONO_NATIVE_LPSTR);
5905 g_assert (!t->byref);
5906 g_assert (encoding != -1);
5908 mono_mb_emit_ldarg (mb, argnum);
5909 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5910 mono_mb_emit_stloc (mb, conv_arg);
5914 /* The class can not have an automatic layout */
5915 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5916 mono_mb_emit_auto_layout_exception (mb, klass);
5920 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5921 mono_mb_emit_byte (mb, CEE_LDNULL);
5922 mono_mb_emit_stloc (mb, conv_arg);
5927 mono_mb_emit_ldarg (mb, argnum);
5931 /* Check for NULL and raise an exception */
5932 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5934 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5936 mono_mb_patch_branch (mb, pos2);
5937 mono_mb_emit_ldarg (mb, argnum);
5938 mono_mb_emit_byte (mb, CEE_LDIND_I);
5941 mono_mb_emit_stloc (mb, 0);
5943 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5944 mono_mb_emit_stloc (mb, conv_arg);
5946 mono_mb_emit_ldloc (mb, 0);
5947 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5949 /* Create and set dst */
5950 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5951 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5952 mono_mb_emit_stloc (mb, conv_arg);
5953 mono_mb_emit_ldloc (mb, conv_arg);
5954 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5955 mono_mb_emit_stloc (mb, 1);
5957 /* emit valuetype conversion code */
5958 emit_struct_conv (mb, klass, TRUE);
5960 mono_mb_patch_branch (mb, pos);
5963 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5964 if (klass->delegate) {
5967 mono_mb_emit_ldarg (mb, argnum);
5968 mono_mb_emit_ldloc (mb, conv_arg);
5969 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5970 mono_mb_emit_byte (mb, stind_op);
5976 /* Check for null */
5977 mono_mb_emit_ldloc (mb, conv_arg);
5978 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5979 mono_mb_emit_ldarg (mb, argnum);
5980 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5981 mono_mb_emit_byte (mb, CEE_STIND_REF);
5982 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5984 mono_mb_patch_branch (mb, pos);
5987 mono_mb_emit_ldloc (mb, conv_arg);
5988 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5989 mono_mb_emit_stloc (mb, 0);
5991 /* Allocate and set dest */
5992 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5993 mono_mb_emit_byte (mb, CEE_CONV_I);
5994 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5995 mono_mb_emit_stloc (mb, 1);
5997 /* Update argument pointer */
5998 mono_mb_emit_ldarg (mb, argnum);
5999 mono_mb_emit_ldloc (mb, 1);
6000 mono_mb_emit_byte (mb, CEE_STIND_I);
6002 /* emit valuetype conversion code */
6003 emit_struct_conv (mb, klass, FALSE);
6005 mono_mb_patch_branch (mb, pos2);
6006 } else if (klass == mono_defaults.stringbuilder_class) {
6007 // FIXME: What to do here ?
6009 /* byval [Out] marshalling */
6011 /* FIXME: Handle null */
6014 mono_mb_emit_ldloc (mb, conv_arg);
6015 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6016 mono_mb_emit_stloc (mb, 0);
6019 mono_mb_emit_ldarg (mb, argnum);
6020 mono_mb_emit_stloc (mb, 1);
6022 /* emit valuetype conversion code */
6023 emit_struct_conv (mb, klass, FALSE);
6027 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6028 if (klass->delegate) {
6029 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6030 mono_mb_emit_stloc (mb, 3);
6034 /* The class can not have an automatic layout */
6035 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6036 mono_mb_emit_auto_layout_exception (mb, klass);
6040 mono_mb_emit_stloc (mb, 0);
6041 /* Check for null */
6042 mono_mb_emit_ldloc (mb, 0);
6043 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6044 mono_mb_emit_byte (mb, CEE_LDNULL);
6045 mono_mb_emit_stloc (mb, 3);
6046 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6048 mono_mb_patch_branch (mb, pos);
6051 mono_mb_emit_ldloc (mb, 0);
6052 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6053 mono_mb_emit_stloc (mb, 0);
6055 /* Allocate and set dest */
6056 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6057 mono_mb_emit_byte (mb, CEE_CONV_I);
6058 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6059 mono_mb_emit_byte (mb, CEE_DUP);
6060 mono_mb_emit_stloc (mb, 1);
6061 mono_mb_emit_stloc (mb, 3);
6063 emit_struct_conv (mb, klass, FALSE);
6065 mono_mb_patch_branch (mb, pos2);
6069 g_assert_not_reached ();
6080 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6081 MonoMarshalSpec *spec,
6082 int conv_arg, MonoType **conv_arg_type,
6083 MarshalAction action)
6085 MonoMethodBuilder *mb = m->mb;
6086 static MonoMethod *get_object_for_native_variant = NULL;
6087 static MonoMethod *get_native_variant_for_object = NULL;
6089 if (!get_object_for_native_variant)
6090 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6091 g_assert (get_object_for_native_variant);
6093 if (!get_native_variant_for_object)
6094 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6095 g_assert (get_native_variant_for_object);
6098 case MARSHAL_ACTION_CONV_IN: {
6099 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6102 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6104 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6106 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6109 mono_mb_emit_ldarg (mb, argnum);
6111 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6112 mono_mb_emit_ldloc_addr (mb, conv_arg);
6113 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6117 case MARSHAL_ACTION_CONV_OUT: {
6118 static MonoMethod *variant_clear = NULL;
6121 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6122 g_assert (variant_clear);
6125 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6126 mono_mb_emit_ldarg (mb, argnum);
6127 mono_mb_emit_ldloc_addr (mb, conv_arg);
6128 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6129 mono_mb_emit_byte (mb, CEE_STIND_REF);
6132 mono_mb_emit_ldloc_addr (mb, conv_arg);
6133 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6137 case MARSHAL_ACTION_PUSH:
6139 mono_mb_emit_ldloc_addr (mb, conv_arg);
6141 mono_mb_emit_ldloc (mb, conv_arg);
6144 case MARSHAL_ACTION_CONV_RESULT: {
6145 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6146 mono_mb_emit_exception_marshal_directive (mb, msg);
6150 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6151 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6154 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6156 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6158 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6162 mono_mb_emit_ldarg (mb, argnum);
6164 mono_mb_emit_ldarg_addr (mb, argnum);
6165 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6166 mono_mb_emit_stloc (mb, conv_arg);
6170 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6171 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6172 mono_mb_emit_ldloc (mb, conv_arg);
6173 mono_mb_emit_ldarg (mb, argnum);
6174 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6179 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6180 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6181 mono_mb_emit_exception_marshal_directive (mb, msg);
6186 g_assert_not_reached ();
6192 #endif /* DISABLE_COM */
6193 #endif /* DISABLE_JIT */
6196 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6198 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6199 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6201 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6203 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6215 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6216 MonoMarshalSpec *spec,
6217 int conv_arg, MonoType **conv_arg_type,
6218 MarshalAction action)
6222 case MARSHAL_ACTION_CONV_IN:
6223 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6225 case MARSHAL_ACTION_MANAGED_CONV_IN:
6226 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6230 MonoMethodBuilder *mb = m->mb;
6231 MonoClass *klass = mono_class_from_mono_type (t);
6232 gboolean need_convert, need_free;
6233 MonoMarshalNative encoding;
6235 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6238 case MARSHAL_ACTION_CONV_IN:
6239 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6240 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6242 if (klass->element_class->blittable) {
6243 mono_mb_emit_ldarg (mb, argnum);
6245 mono_mb_emit_byte (mb, CEE_LDIND_I);
6246 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6247 mono_mb_emit_stloc (mb, conv_arg);
6250 guint32 label1, label2, label3;
6251 int index_var, src_var, dest_ptr, esize;
6252 MonoMarshalConv conv;
6253 gboolean is_string = FALSE;
6255 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6257 eklass = klass->element_class;
6259 if (eklass == mono_defaults.string_class) {
6261 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6263 else if (eklass == mono_defaults.stringbuilder_class) {
6265 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6268 conv = MONO_MARSHAL_CONV_INVALID;
6270 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6271 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6272 mono_mb_emit_exception_marshal_directive (mb, msg);
6276 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6277 mono_mb_emit_ldarg (mb, argnum);
6279 mono_mb_emit_byte (mb, CEE_LDIND_I);
6280 mono_mb_emit_stloc (mb, src_var);
6283 mono_mb_emit_ldloc (mb, src_var);
6284 mono_mb_emit_stloc (mb, conv_arg);
6285 mono_mb_emit_ldloc (mb, src_var);
6286 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6289 esize = sizeof (gpointer);
6290 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6291 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6293 esize = mono_class_native_size (eklass, NULL);
6295 /* allocate space for the native struct and store the address */
6296 mono_mb_emit_icon (mb, esize);
6297 mono_mb_emit_ldloc (mb, src_var);
6298 mono_mb_emit_byte (mb, CEE_LDLEN);
6300 if (eklass == mono_defaults.string_class) {
6301 /* Make the array bigger for the terminating null */
6302 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6303 mono_mb_emit_byte (mb, CEE_ADD);
6305 mono_mb_emit_byte (mb, CEE_MUL);
6306 mono_mb_emit_byte (mb, CEE_PREFIX1);
6307 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6308 mono_mb_emit_stloc (mb, conv_arg);
6310 mono_mb_emit_ldloc (mb, conv_arg);
6311 mono_mb_emit_stloc (mb, dest_ptr);
6313 /* Emit marshalling loop */
6314 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6315 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6316 mono_mb_emit_stloc (mb, index_var);
6317 label2 = mono_mb_get_label (mb);
6318 mono_mb_emit_ldloc (mb, index_var);
6319 mono_mb_emit_ldloc (mb, src_var);
6320 mono_mb_emit_byte (mb, CEE_LDLEN);
6321 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6323 /* Emit marshalling code */
6327 mono_mb_emit_ldloc (mb, dest_ptr);
6328 mono_mb_emit_ldloc (mb, src_var);
6329 mono_mb_emit_ldloc (mb, index_var);
6330 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6331 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6332 mono_mb_emit_byte (mb, stind_op);
6334 /* set the src_ptr */
6335 mono_mb_emit_ldloc (mb, src_var);
6336 mono_mb_emit_ldloc (mb, index_var);
6337 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6338 mono_mb_emit_stloc (mb, 0);
6341 mono_mb_emit_ldloc (mb, dest_ptr);
6342 mono_mb_emit_stloc (mb, 1);
6344 /* emit valuetype conversion code */
6345 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6348 mono_mb_emit_add_to_local (mb, index_var, 1);
6349 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6351 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6353 mono_mb_patch_branch (mb, label3);
6355 if (eklass == mono_defaults.string_class) {
6356 /* Null terminate */
6357 mono_mb_emit_ldloc (mb, dest_ptr);
6358 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6359 mono_mb_emit_byte (mb, CEE_STIND_REF);
6362 mono_mb_patch_branch (mb, label1);
6367 case MARSHAL_ACTION_CONV_OUT:
6368 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6369 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);
6370 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6373 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6374 int param_num = spec->data.array_data.param_num;
6375 MonoType *param_type;
6377 param_type = m->sig->params [param_num];
6379 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6380 char *msg = g_strdup ("Not implemented.");
6381 mono_mb_emit_exception_marshal_directive (mb, msg);
6386 mono_mb_emit_ldarg (mb, argnum);
6388 /* Create the managed array */
6389 mono_mb_emit_ldarg (mb, param_num);
6390 if (m->sig->params [param_num]->byref)
6391 // FIXME: Support other types
6392 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6393 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6394 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6395 /* Store into argument */
6396 mono_mb_emit_byte (mb, CEE_STIND_REF);
6400 if (need_convert || need_free) {
6401 /* FIXME: Optimize blittable case */
6403 guint32 label1, label2, label3;
6404 int index_var, src_ptr, loc, esize;
6406 eklass = klass->element_class;
6407 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6408 esize = sizeof (gpointer);
6409 else if (eklass == mono_defaults.char_class)
6410 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6412 esize = mono_class_native_size (eklass, NULL);
6413 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6414 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6417 mono_mb_emit_ldarg (mb, argnum);
6419 mono_mb_emit_byte (mb, CEE_LDIND_I);
6420 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6422 mono_mb_emit_ldloc (mb, conv_arg);
6423 mono_mb_emit_stloc (mb, src_ptr);
6425 /* Emit marshalling loop */
6426 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6427 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6428 mono_mb_emit_stloc (mb, index_var);
6429 label2 = mono_mb_get_label (mb);
6430 mono_mb_emit_ldloc (mb, index_var);
6431 mono_mb_emit_ldarg (mb, argnum);
6433 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6434 mono_mb_emit_byte (mb, CEE_LDLEN);
6435 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6437 /* Emit marshalling code */
6439 if (eklass == mono_defaults.stringbuilder_class) {
6440 gboolean need_free2;
6441 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6443 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6446 mono_mb_emit_ldarg (mb, argnum);
6448 mono_mb_emit_byte (mb, CEE_LDIND_I);
6449 mono_mb_emit_ldloc (mb, index_var);
6450 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6453 mono_mb_emit_ldloc (mb, src_ptr);
6454 mono_mb_emit_byte (mb, CEE_LDIND_I);
6456 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6460 mono_mb_emit_ldloc (mb, src_ptr);
6461 mono_mb_emit_byte (mb, CEE_LDIND_I);
6463 mono_mb_emit_icall (mb, mono_marshal_free);
6466 else if (eklass == mono_defaults.string_class) {
6469 mono_mb_emit_ldloc (mb, src_ptr);
6470 mono_mb_emit_byte (mb, CEE_LDIND_I);
6472 mono_mb_emit_icall (mb, mono_marshal_free);
6477 /* set the src_ptr */
6478 mono_mb_emit_ldloc (mb, src_ptr);
6479 mono_mb_emit_stloc (mb, 0);
6482 mono_mb_emit_ldarg (mb, argnum);
6484 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6485 mono_mb_emit_ldloc (mb, index_var);
6486 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6487 mono_mb_emit_stloc (mb, 1);
6489 /* emit valuetype conversion code */
6490 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6494 mono_mb_emit_ldloc (mb, src_ptr);
6495 mono_mb_emit_stloc (mb, loc);
6496 mono_mb_emit_ldloc (mb, loc);
6498 emit_struct_free (mb, eklass, loc);
6502 mono_mb_emit_add_to_local (mb, index_var, 1);
6503 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6505 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6507 mono_mb_patch_branch (mb, label1);
6508 mono_mb_patch_branch (mb, label3);
6511 if (klass->element_class->blittable) {
6512 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6514 mono_mb_emit_ldarg (mb, argnum);
6516 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6517 mono_mb_emit_ldloc (mb, conv_arg);
6518 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6523 case MARSHAL_ACTION_PUSH:
6525 mono_mb_emit_ldloc_addr (mb, conv_arg);
6527 mono_mb_emit_ldloc (mb, conv_arg);
6530 case MARSHAL_ACTION_CONV_RESULT:
6531 /* fixme: we need conversions here */
6532 mono_mb_emit_stloc (mb, 3);
6535 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6537 guint32 label1, label2, label3;
6538 int index_var, src_ptr, esize, param_num, num_elem;
6539 MonoMarshalConv conv;
6540 gboolean is_string = FALSE;
6542 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6543 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6546 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6547 mono_mb_emit_exception_marshal_directive (mb, msg);
6551 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6552 mono_mb_emit_exception_marshal_directive (mb, msg);
6555 if (spec->native != MONO_NATIVE_LPARRAY) {
6556 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6557 mono_mb_emit_exception_marshal_directive (mb, msg);
6561 /* FIXME: t is from the method which is wrapped, not the delegate type */
6562 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6564 param_num = spec->data.array_data.param_num;
6565 num_elem = spec->data.array_data.num_elem;
6566 if (spec->data.array_data.elem_mult == 0)
6567 /* param_num is not specified */
6570 if (param_num == -1) {
6571 if (num_elem <= 0) {
6572 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6573 mono_mb_emit_exception_marshal_directive (mb, msg);
6578 /* FIXME: Optimize blittable case */
6580 eklass = klass->element_class;
6581 if (eklass == mono_defaults.string_class) {
6583 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6585 else if (eklass == mono_defaults.stringbuilder_class) {
6587 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6590 conv = MONO_MARSHAL_CONV_INVALID;
6592 mono_marshal_load_type_info (eklass);
6595 esize = sizeof (gpointer);
6597 esize = mono_class_native_size (eklass, NULL);
6598 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6600 mono_mb_emit_byte (mb, CEE_LDNULL);
6601 mono_mb_emit_stloc (mb, conv_arg);
6603 /* Check param index */
6604 if (param_num != -1) {
6605 if (param_num >= m->sig->param_count) {
6606 char *msg = g_strdup ("Array size control parameter index is out of range.");
6607 mono_mb_emit_exception_marshal_directive (mb, msg);
6610 switch (m->sig->params [param_num]->type) {
6623 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6624 mono_mb_emit_exception_marshal_directive (mb, msg);
6631 mono_mb_emit_ldarg (mb, argnum);
6632 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6634 mono_mb_emit_ldarg (mb, argnum);
6635 mono_mb_emit_stloc (mb, src_ptr);
6637 /* Create managed array */
6639 * The LPArray marshalling spec says that sometimes param_num starts
6640 * from 1, sometimes it starts from 0. But MS seems to allways start
6644 if (param_num == -1) {
6645 mono_mb_emit_icon (mb, num_elem);
6647 mono_mb_emit_ldarg (mb, param_num);
6649 mono_mb_emit_icon (mb, num_elem);
6650 mono_mb_emit_byte (mb, CEE_ADD);
6652 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6655 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6656 mono_mb_emit_stloc (mb, conv_arg);
6658 if (eklass->blittable) {
6659 mono_mb_emit_ldloc (mb, conv_arg);
6660 mono_mb_emit_byte (mb, CEE_CONV_I);
6661 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6662 mono_mb_emit_byte (mb, CEE_ADD);
6663 mono_mb_emit_ldarg (mb, argnum);
6664 mono_mb_emit_ldloc (mb, conv_arg);
6665 mono_mb_emit_byte (mb, CEE_LDLEN);
6666 mono_mb_emit_icon (mb, esize);
6667 mono_mb_emit_byte (mb, CEE_MUL);
6668 mono_mb_emit_byte (mb, CEE_PREFIX1);
6669 mono_mb_emit_byte (mb, CEE_CPBLK);
6673 /* Emit marshalling loop */
6674 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6675 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6676 mono_mb_emit_stloc (mb, index_var);
6677 label2 = mono_mb_get_label (mb);
6678 mono_mb_emit_ldloc (mb, index_var);
6679 mono_mb_emit_ldloc (mb, conv_arg);
6680 mono_mb_emit_byte (mb, CEE_LDLEN);
6681 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6683 /* Emit marshalling code */
6685 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6687 mono_mb_emit_ldloc (mb, conv_arg);
6688 mono_mb_emit_ldloc (mb, index_var);
6690 mono_mb_emit_ldloc (mb, src_ptr);
6691 mono_mb_emit_byte (mb, CEE_LDIND_I);
6693 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6694 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6697 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6698 mono_mb_emit_exception_marshal_directive (mb, msg);
6702 mono_mb_emit_add_to_local (mb, index_var, 1);
6703 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6705 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6707 mono_mb_patch_branch (mb, label1);
6708 mono_mb_patch_branch (mb, label3);
6712 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6714 guint32 label1, label2, label3;
6715 int index_var, dest_ptr, esize, param_num, num_elem;
6716 MonoMarshalConv conv;
6717 gboolean is_string = FALSE;
6720 /* Already handled in CONV_IN */
6723 /* These are already checked in CONV_IN */
6724 g_assert (!t->byref);
6725 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6726 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6728 param_num = spec->data.array_data.param_num;
6729 num_elem = spec->data.array_data.num_elem;
6731 if (spec->data.array_data.elem_mult == 0)
6732 /* param_num is not specified */
6735 if (param_num == -1) {
6736 if (num_elem <= 0) {
6737 g_assert_not_reached ();
6741 /* FIXME: Optimize blittable case */
6743 eklass = klass->element_class;
6744 if (eklass == mono_defaults.string_class) {
6746 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6748 else if (eklass == mono_defaults.stringbuilder_class) {
6750 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6753 conv = MONO_MARSHAL_CONV_INVALID;
6755 mono_marshal_load_type_info (eklass);
6758 esize = sizeof (gpointer);
6760 esize = mono_class_native_size (eklass, NULL);
6762 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6765 mono_mb_emit_ldloc (mb, conv_arg);
6766 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6768 mono_mb_emit_ldarg (mb, argnum);
6769 mono_mb_emit_stloc (mb, dest_ptr);
6771 if (eklass->blittable) {
6773 mono_mb_emit_ldarg (mb, argnum);
6775 mono_mb_emit_ldloc (mb, conv_arg);
6776 mono_mb_emit_byte (mb, CEE_CONV_I);
6777 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6778 mono_mb_emit_byte (mb, CEE_ADD);
6780 mono_mb_emit_ldloc (mb, conv_arg);
6781 mono_mb_emit_byte (mb, CEE_LDLEN);
6782 mono_mb_emit_icon (mb, esize);
6783 mono_mb_emit_byte (mb, CEE_MUL);
6784 mono_mb_emit_byte (mb, CEE_PREFIX1);
6785 mono_mb_emit_byte (mb, CEE_CPBLK);
6789 /* Emit marshalling loop */
6790 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6791 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6792 mono_mb_emit_stloc (mb, index_var);
6793 label2 = mono_mb_get_label (mb);
6794 mono_mb_emit_ldloc (mb, index_var);
6795 mono_mb_emit_ldloc (mb, conv_arg);
6796 mono_mb_emit_byte (mb, CEE_LDLEN);
6797 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6799 /* Emit marshalling code */
6802 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6805 mono_mb_emit_ldloc (mb, dest_ptr);
6808 mono_mb_emit_ldloc (mb, conv_arg);
6809 mono_mb_emit_ldloc (mb, index_var);
6811 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6813 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6814 mono_mb_emit_byte (mb, stind_op);
6817 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6818 mono_mb_emit_exception_marshal_directive (mb, msg);
6822 mono_mb_emit_add_to_local (mb, index_var, 1);
6823 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6825 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6827 mono_mb_patch_branch (mb, label1);
6828 mono_mb_patch_branch (mb, label3);
6832 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6834 guint32 label1, label2, label3;
6835 int index_var, src, dest, esize;
6836 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6837 gboolean is_string = FALSE;
6839 g_assert (!t->byref);
6841 eklass = klass->element_class;
6843 mono_marshal_load_type_info (eklass);
6845 if (eklass == mono_defaults.string_class) {
6847 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6850 g_assert_not_reached ();
6854 esize = sizeof (gpointer);
6855 else if (eklass == mono_defaults.char_class)
6856 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6858 esize = mono_class_native_size (eklass, NULL);
6860 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6861 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6863 mono_mb_emit_stloc (mb, src);
6864 mono_mb_emit_ldloc (mb, src);
6865 mono_mb_emit_stloc (mb, 3);
6867 /* Check for null */
6868 mono_mb_emit_ldloc (mb, src);
6869 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6871 /* Allocate native array */
6872 mono_mb_emit_icon (mb, esize);
6873 mono_mb_emit_ldloc (mb, src);
6874 mono_mb_emit_byte (mb, CEE_LDLEN);
6876 if (eklass == mono_defaults.string_class) {
6877 /* Make the array bigger for the terminating null */
6878 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6879 mono_mb_emit_byte (mb, CEE_ADD);
6881 mono_mb_emit_byte (mb, CEE_MUL);
6882 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6883 mono_mb_emit_stloc (mb, dest);
6884 mono_mb_emit_ldloc (mb, dest);
6885 mono_mb_emit_stloc (mb, 3);
6887 /* Emit marshalling loop */
6888 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6889 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6890 mono_mb_emit_stloc (mb, index_var);
6891 label2 = mono_mb_get_label (mb);
6892 mono_mb_emit_ldloc (mb, index_var);
6893 mono_mb_emit_ldloc (mb, src);
6894 mono_mb_emit_byte (mb, CEE_LDLEN);
6895 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6897 /* Emit marshalling code */
6900 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6903 mono_mb_emit_ldloc (mb, dest);
6906 mono_mb_emit_ldloc (mb, src);
6907 mono_mb_emit_ldloc (mb, index_var);
6909 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6911 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6912 mono_mb_emit_byte (mb, stind_op);
6915 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6916 mono_mb_emit_exception_marshal_directive (mb, msg);
6920 mono_mb_emit_add_to_local (mb, index_var, 1);
6921 mono_mb_emit_add_to_local (mb, dest, esize);
6923 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6925 mono_mb_patch_branch (mb, label3);
6926 mono_mb_patch_branch (mb, label1);
6930 g_assert_not_reached ();
6937 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6940 return &mono_defaults.int32_class->byval_arg;
6942 switch (spec->native) {
6943 case MONO_NATIVE_I1:
6944 case MONO_NATIVE_U1:
6945 return &mono_defaults.byte_class->byval_arg;
6946 case MONO_NATIVE_VARIANTBOOL:
6947 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6948 return &mono_defaults.int16_class->byval_arg;
6949 case MONO_NATIVE_BOOLEAN:
6950 return &mono_defaults.int32_class->byval_arg;
6952 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6953 return &mono_defaults.int32_class->byval_arg;
6959 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6961 MonoClass* conv_arg_class = mono_defaults.int32_class;
6963 switch (spec->native) {
6964 case MONO_NATIVE_I1:
6965 case MONO_NATIVE_U1:
6966 conv_arg_class = mono_defaults.byte_class;
6967 if (ldop) *ldop = CEE_LDIND_I1;
6969 case MONO_NATIVE_VARIANTBOOL:
6970 conv_arg_class = mono_defaults.int16_class;
6971 if (ldop) *ldop = CEE_LDIND_I2;
6973 case MONO_NATIVE_BOOLEAN:
6976 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6979 return conv_arg_class;
6983 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6984 MonoMarshalSpec *spec,
6985 int conv_arg, MonoType **conv_arg_type,
6986 MarshalAction action)
6990 case MARSHAL_ACTION_CONV_IN:
6992 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6994 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6997 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6998 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7000 *conv_arg_type = &conv_arg_class->this_arg;
7002 *conv_arg_type = &conv_arg_class->byval_arg;
7008 MonoMethodBuilder *mb = m->mb;
7011 case MARSHAL_ACTION_CONV_IN: {
7012 MonoType *local_type;
7014 guint8 ldc_op = CEE_LDC_I4_1;
7016 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7018 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7020 *conv_arg_type = local_type;
7021 conv_arg = mono_mb_add_local (mb, local_type);
7023 mono_mb_emit_ldarg (mb, argnum);
7025 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7026 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7027 mono_mb_emit_byte (mb, ldc_op);
7028 mono_mb_emit_stloc (mb, conv_arg);
7029 mono_mb_patch_branch (mb, label_false);
7034 case MARSHAL_ACTION_CONV_OUT:
7036 int label_false, label_end;
7040 mono_mb_emit_ldarg (mb, argnum);
7041 mono_mb_emit_ldloc (mb, conv_arg);
7043 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7044 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7046 label_end = mono_mb_emit_branch (mb, CEE_BR);
7047 mono_mb_patch_branch (mb, label_false);
7048 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7049 mono_mb_patch_branch (mb, label_end);
7051 mono_mb_emit_byte (mb, CEE_STIND_I1);
7055 case MARSHAL_ACTION_PUSH:
7057 mono_mb_emit_ldloc_addr (mb, conv_arg);
7059 mono_mb_emit_ldloc (mb, conv_arg);
7061 mono_mb_emit_ldarg (mb, argnum);
7064 case MARSHAL_ACTION_CONV_RESULT:
7065 /* maybe we need to make sure that it fits within 8 bits */
7066 mono_mb_emit_stloc (mb, 3);
7069 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7070 MonoClass* conv_arg_class = mono_defaults.int32_class;
7071 guint8 ldop = CEE_LDIND_I4;
7072 int label_null, label_false;
7074 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7075 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7078 *conv_arg_type = &conv_arg_class->this_arg;
7080 *conv_arg_type = &conv_arg_class->byval_arg;
7083 mono_mb_emit_ldarg (mb, argnum);
7087 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7088 mono_mb_emit_ldarg (mb, argnum);
7089 mono_mb_emit_byte (mb, ldop);
7093 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7094 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7095 mono_mb_emit_stloc (mb, conv_arg);
7096 mono_mb_patch_branch (mb, label_false);
7099 mono_mb_patch_branch (mb, label_null);
7103 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7104 guint8 stop = CEE_STIND_I4;
7105 guint8 ldc_op = CEE_LDC_I4_1;
7106 int label_null,label_false, label_end;;
7111 switch (spec->native) {
7112 case MONO_NATIVE_I1:
7113 case MONO_NATIVE_U1:
7114 stop = CEE_STIND_I1;
7116 case MONO_NATIVE_VARIANTBOOL:
7117 stop = CEE_STIND_I2;
7118 ldc_op = CEE_LDC_I4_M1;
7126 mono_mb_emit_ldarg (mb, argnum);
7127 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7129 mono_mb_emit_ldarg (mb, argnum);
7130 mono_mb_emit_ldloc (mb, conv_arg);
7132 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7133 mono_mb_emit_byte (mb, ldc_op);
7134 label_end = mono_mb_emit_branch (mb, CEE_BR);
7136 mono_mb_patch_branch (mb, label_false);
7137 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7138 mono_mb_patch_branch (mb, label_end);
7140 mono_mb_emit_byte (mb, stop);
7141 mono_mb_patch_branch (mb, label_null);
7146 g_assert_not_reached ();
7153 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7154 MonoMarshalSpec *spec, int conv_arg,
7155 MonoType **conv_arg_type, MarshalAction action)
7158 MonoMethodBuilder *mb = m->mb;
7161 case MARSHAL_ACTION_CONV_IN:
7162 /* MS seems to allow this in some cases, ie. bxc #158 */
7164 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7165 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7166 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7171 case MARSHAL_ACTION_PUSH:
7172 mono_mb_emit_ldarg (mb, argnum);
7175 case MARSHAL_ACTION_CONV_RESULT:
7176 /* no conversions necessary */
7177 mono_mb_emit_stloc (mb, 3);
7188 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7189 MonoMarshalSpec *spec, int conv_arg,
7190 MonoType **conv_arg_type, MarshalAction action)
7193 MonoMethodBuilder *mb = m->mb;
7196 case MARSHAL_ACTION_PUSH:
7197 /* fixme: dont know how to marshal that. We cant simply
7198 * convert it to a one byte UTF8 character, because an
7199 * unicode character may need more that one byte in UTF8 */
7200 mono_mb_emit_ldarg (mb, argnum);
7203 case MARSHAL_ACTION_CONV_RESULT:
7204 /* fixme: we need conversions here */
7205 mono_mb_emit_stloc (mb, 3);
7216 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7217 MonoMarshalSpec *spec, int conv_arg,
7218 MonoType **conv_arg_type, MarshalAction action)
7221 MonoMethodBuilder *mb = m->mb;
7224 case MARSHAL_ACTION_PUSH:
7225 mono_mb_emit_ldarg (mb, argnum);
7228 case MARSHAL_ACTION_CONV_RESULT:
7229 /* no conversions necessary */
7230 mono_mb_emit_stloc (mb, 3);
7241 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7242 MonoMarshalSpec *spec, int conv_arg,
7243 MonoType **conv_arg_type, MarshalAction action)
7245 /* Ensure that we have marshalling info for this param */
7246 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7248 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7249 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7251 if (spec && spec->native == MONO_NATIVE_ASANY)
7252 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7255 case MONO_TYPE_VALUETYPE:
7256 if (t->data.klass == mono_defaults.handleref_class)
7257 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7259 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7260 case MONO_TYPE_STRING:
7261 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7262 case MONO_TYPE_CLASS:
7263 case MONO_TYPE_OBJECT:
7264 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7265 if (spec && spec->native == MONO_NATIVE_STRUCT)
7266 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7269 #if !defined(DISABLE_COM)
7270 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7271 spec->native == MONO_NATIVE_IDISPATCH ||
7272 spec->native == MONO_NATIVE_INTERFACE))
7273 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7274 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7275 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7276 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7277 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7280 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7281 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7282 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7284 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7285 case MONO_TYPE_ARRAY:
7286 case MONO_TYPE_SZARRAY:
7287 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7288 case MONO_TYPE_BOOLEAN:
7289 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7291 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7292 case MONO_TYPE_CHAR:
7293 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7306 case MONO_TYPE_FNPTR:
7307 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7308 case MONO_TYPE_GENERICINST:
7309 if (mono_type_generic_inst_is_valuetype (t))
7310 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7312 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7320 * mono_marshal_emit_native_wrapper:
7321 * @image: the image to use for looking up custom marshallers
7322 * @sig: The signature of the native function
7323 * @piinfo: Marshalling information
7324 * @mspecs: Marshalling information
7325 * @aot: whenever the created method will be compiled by the AOT compiler
7326 * @method: if non-NULL, the pinvoke method to call
7327 * @check_exceptions: Whenever to check for pending exceptions after the native call
7328 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7330 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7333 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)
7335 EmitMarshalContext m;
7336 MonoMethodSignature *csig;
7338 int i, argnum, *tmp_locals;
7339 int type, param_shift = 0;
7340 int coop_gc_stack_dummy, coop_gc_var;
7342 memset (&m, 0, sizeof (m));
7347 /* we copy the signature, so that we can set pinvoke to 0 */
7349 /* The function address is passed as the first argument */
7350 g_assert (!sig->hasthis);
7353 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7361 /* we allocate local for use with emit_struct_conv() */
7362 /* allocate local 0 (pointer) src_ptr */
7363 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7364 /* allocate local 1 (pointer) dst_ptr */
7365 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7366 /* allocate local 2 (boolean) delete_old */
7367 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7369 /* delete_old = FALSE */
7370 mono_mb_emit_icon (mb, 0);
7371 mono_mb_emit_stloc (mb, 2);
7373 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7374 /* allocate local 3 to store the return value */
7375 mono_mb_add_local (mb, sig->ret);
7378 if (mono_threads_is_coop_enabled ()) {
7379 /* local 4, dummy local used to get a stack address for suspend funcs */
7380 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7381 /* local 5, the local to be used when calling the suspend funcs */
7382 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7386 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7388 * ret = method (...);
7390 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7397 if (MONO_TYPE_ISSTRUCT (sig->ret))
7398 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7400 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7401 /* Return type custom marshaling */
7403 * Since we can't determine the return type of the unmanaged function,
7404 * we assume it returns a pointer, and pass that pointer to
7405 * MarshalNativeToManaged.
7407 csig->ret = &mono_defaults.int_class->byval_arg;
7410 /* we first do all conversions */
7411 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7412 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7414 for (i = 0; i < sig->param_count; i ++) {
7415 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7418 // In coop mode need to register blocking state during native call
7419 if (mono_threads_is_coop_enabled ()) {
7420 // Perform an extra, early lookup of the function address, so any exceptions
7421 // potentially resulting from the lookup occur before entering blocking mode.
7422 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7423 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7424 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7425 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7428 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7429 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7430 mono_mb_emit_stloc (mb, coop_gc_var);
7433 /* push all arguments */
7436 mono_mb_emit_byte (mb, CEE_LDARG_0);
7438 for (i = 0; i < sig->param_count; i++) {
7439 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7442 /* call the native method */
7444 mono_mb_emit_byte (mb, CEE_LDARG_0);
7445 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7446 mono_mb_emit_byte (mb, CEE_LDIND_I);
7447 mono_mb_emit_calli (mb, csig);
7448 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7450 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7452 g_assert_not_reached ();
7456 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7457 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7458 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7459 mono_mb_emit_calli (mb, csig);
7461 mono_mb_emit_native_call (mb, csig, func);
7465 /* Set LastError if needed */
7466 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7469 static MonoMethodSignature *get_last_error_sig = NULL;
7470 if (!get_last_error_sig) {
7471 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7472 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7473 get_last_error_sig->pinvoke = 1;
7477 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7478 * clobber its value.
7480 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7481 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7483 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7484 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7485 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7488 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7492 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7493 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7494 mono_class_init (klass);
7495 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7496 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7497 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7498 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7499 mono_mb_emit_stloc (mb, m.vtaddr_var);
7503 /* Unblock before converting the result, since that can involve calls into the runtime */
7504 if (mono_threads_is_coop_enabled ()) {
7505 mono_mb_emit_ldloc (mb, coop_gc_var);
7506 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7507 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7510 /* convert the result */
7511 if (!sig->ret->byref) {
7512 MonoMarshalSpec *spec = mspecs [0];
7513 type = sig->ret->type;
7515 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7516 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7520 case MONO_TYPE_VOID:
7522 case MONO_TYPE_VALUETYPE:
7523 klass = sig->ret->data.klass;
7524 if (klass->enumtype) {
7525 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7528 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7542 case MONO_TYPE_FNPTR:
7543 case MONO_TYPE_STRING:
7544 case MONO_TYPE_CLASS:
7545 case MONO_TYPE_OBJECT:
7546 case MONO_TYPE_BOOLEAN:
7547 case MONO_TYPE_ARRAY:
7548 case MONO_TYPE_SZARRAY:
7549 case MONO_TYPE_CHAR:
7551 case MONO_TYPE_GENERICINST:
7552 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7554 case MONO_TYPE_TYPEDBYREF:
7556 g_warning ("return type 0x%02x unknown", sig->ret->type);
7557 g_assert_not_reached ();
7561 mono_mb_emit_stloc (mb, 3);
7565 * Need to call this after converting the result since MONO_VTADDR needs
7566 * to be adjacent to the call instruction.
7568 if (check_exceptions)
7569 emit_thread_interrupt_checkpoint (mb);
7571 /* we need to convert byref arguments back and free string arrays */
7572 for (i = 0; i < sig->param_count; i++) {
7573 MonoType *t = sig->params [i];
7574 MonoMarshalSpec *spec = mspecs [i + 1];
7576 argnum = i + param_shift;
7578 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7579 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7584 case MONO_TYPE_STRING:
7585 case MONO_TYPE_VALUETYPE:
7586 case MONO_TYPE_CLASS:
7587 case MONO_TYPE_OBJECT:
7588 case MONO_TYPE_SZARRAY:
7589 case MONO_TYPE_BOOLEAN:
7590 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7597 if (!MONO_TYPE_IS_VOID(sig->ret))
7598 mono_mb_emit_ldloc (mb, 3);
7600 mono_mb_emit_byte (mb, CEE_RET);
7602 #endif /* DISABLE_JIT */
7605 * mono_marshal_get_native_wrapper:
7606 * @method: The MonoMethod to wrap.
7607 * @check_exceptions: Whenever to check for pending exceptions
7609 * generates IL code for the pinvoke wrapper (the generated method
7610 * calls the unmanaged code in piinfo->addr)
7613 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7615 MonoMethodSignature *sig, *csig;
7616 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7617 MonoMethodBuilder *mb;
7618 MonoMarshalSpec **mspecs;
7621 gboolean pinvoke = FALSE;
7624 const char *exc_class = "MissingMethodException";
7625 const char *exc_arg = NULL;
7628 g_assert (method != NULL);
7629 g_assert (mono_method_signature (method)->pinvoke);
7631 GHashTable **cache_ptr;
7634 if (check_exceptions)
7635 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7637 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7639 if (check_exceptions)
7640 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7642 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7645 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7647 if ((res = mono_marshal_find_in_cache (cache, method)))
7650 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7651 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7655 return mono_cominterop_get_native_wrapper (method);
7657 g_assert_not_reached ();
7661 sig = mono_method_signature (method);
7663 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7664 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7667 if (!piinfo->addr) {
7669 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7670 exc_arg = "Method contains unsupported native code";
7672 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7674 piinfo->addr = mono_lookup_internal_call (method);
7678 /* hack - redirect certain string constructors to CreateString */
7679 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7680 g_assert (!pinvoke);
7681 g_assert (method->string_ctor);
7682 g_assert (sig->hasthis);
7684 /* CreateString returns a value */
7685 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7686 csig->ret = &mono_defaults.string_class->byval_arg;
7690 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7691 if (!strcmp ("CreateString", res->name) &&
7692 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7695 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7696 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7698 /* create a wrapper to preserve .ctor in stack trace */
7699 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7702 mono_mb_emit_byte (mb, CEE_LDARG_0);
7703 for (i = 1; i <= csig->param_count; i++)
7704 mono_mb_emit_ldarg (mb, i);
7705 mono_mb_emit_managed_call (mb, res, NULL);
7706 mono_mb_emit_byte (mb, CEE_RET);
7709 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7710 info->d.string_ctor.method = method;
7712 /* use native_wrapper_cache because internal calls are looked up there */
7713 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7714 csig->param_count + 1, info, NULL);
7721 /* exception will be thrown */
7722 piinfo->addr = NULL;
7723 g_warning ("cannot find CreateString for .ctor");
7726 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7728 mb->method->save_lmf = 1;
7731 * In AOT mode and embedding scenarios, it is possible that the icall is not
7732 * registered in the runtime doing the AOT compilation.
7734 if (!piinfo->addr && !aot) {
7736 mono_mb_emit_exception (mb, exc_class, exc_arg);
7738 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7739 info->d.managed_to_native.method = method;
7741 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7743 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7744 csig->param_count + 16, info, NULL);
7750 /* internal calls: we simply push all arguments and call the method (no conversions) */
7751 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7753 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7755 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7757 //printf ("%s\n", mono_method_full_name (method, 1));
7759 /* hack - string constructors returns a value */
7760 if (method->string_ctor)
7761 csig->ret = &mono_defaults.string_class->byval_arg;
7765 MonoClass *handle_stack_mark_class;
7766 MonoClass *error_class;
7767 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
7768 MonoMethodSignature *call_sig = csig;
7769 gboolean uses_handles = FALSE;
7770 (void) mono_lookup_internal_call_full (method, &uses_handles);
7773 /* If it uses handles and MonoError, it had better check exceptions */
7774 g_assert (!uses_handles || check_exceptions);
7777 MonoMethodSignature *ret;
7779 /* Add a MonoError argument */
7780 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
7781 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
7783 ret->param_count = csig->param_count + 1;
7784 ret->ret = csig->ret;
7785 for (int i = 0; i < csig->param_count; ++i) {
7786 // FIXME: TODO implement handle wrapping for out and inout params.
7787 g_assert (!mono_signature_param_is_out (csig, i));
7788 ret->params [i] = csig->params [i];
7790 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
7795 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
7796 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
7798 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
7799 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
7800 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
7802 // FIXME: Change csig so it passes a handle not an objref
7809 * Add a null check since public icalls can be called with 'call' which
7810 * does no such check.
7812 mono_mb_emit_byte (mb, CEE_LDARG_0);
7813 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7814 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7815 mono_mb_patch_branch (mb, pos);
7819 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7820 mono_mb_emit_ldloc_addr (mb, error_var);
7821 mono_mb_emit_icall (mb, mono_icall_start);
7822 mono_mb_emit_stloc (mb, thread_info_var);
7825 mono_mb_emit_byte (mb, CEE_LDARG_0);
7826 mono_mb_emit_icall (mb, mono_handle_new);
7828 for (i = 0; i < sig->param_count; i++) {
7829 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7830 if (MONO_TYPE_IS_REFERENCE (sig->params [i])) {
7831 mono_mb_emit_icall (mb, mono_handle_new);
7834 mono_mb_emit_ldloc_addr (mb, error_var);
7837 mono_mb_emit_byte (mb, CEE_LDARG_0);
7838 for (i = 0; i < sig->param_count; i++)
7839 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7843 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7844 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7845 mono_mb_emit_calli (mb, call_sig);
7847 g_assert (piinfo->addr);
7848 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
7852 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
7853 // if (ret != NULL_HANDLE) {
7854 // ret = MONO_HANDLE_RAW(ret)
7856 mono_mb_emit_byte (mb, CEE_DUP);
7857 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7858 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
7859 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7860 mono_mb_patch_branch (mb, pos);
7862 mono_mb_emit_ldloc (mb, thread_info_var);
7863 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7864 mono_mb_emit_ldloc_addr (mb, error_var);
7865 mono_mb_emit_icall (mb, mono_icall_end);
7868 if (check_exceptions)
7869 emit_thread_interrupt_checkpoint (mb);
7870 mono_mb_emit_byte (mb, CEE_RET);
7872 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7873 info->d.managed_to_native.method = method;
7875 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7877 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7886 g_assert (piinfo->addr);
7889 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7890 mono_method_get_marshal_info (method, mspecs);
7892 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7894 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7895 info->d.managed_to_native.method = method;
7897 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7899 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7904 for (i = sig->param_count; i >= 0; i--)
7906 mono_metadata_free_marshal_spec (mspecs [i]);
7910 /* mono_method_print_code (res); */
7916 * mono_marshal_get_native_func_wrapper:
7917 * @image: The image to use for memory allocation and for looking up custom marshallers.
7918 * @sig: The signature of the function
7919 * @func: The native function to wrap
7921 * Returns a wrapper method around native functions, similar to the pinvoke
7925 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7926 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7928 MonoMethodSignature *csig;
7930 SignaturePointerPair key, *new_key;
7931 MonoMethodBuilder *mb;
7940 // Generic types are not safe to place in MonoImage caches.
7941 g_assert (!sig->is_inflated);
7943 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7944 if ((res = mono_marshal_find_in_cache (cache, &key)))
7947 name = g_strdup_printf ("wrapper_native_%p", func);
7948 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7949 mb->method->save_lmf = 1;
7952 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7955 csig = mono_metadata_signature_dup_full (image, sig);
7958 new_key = g_new (SignaturePointerPair,1);
7959 new_key->sig = csig;
7960 new_key->pointer = func;
7962 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7968 mono_marshal_set_wrapper_info (res, NULL);
7974 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7978 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7980 MonoMethodSignature *sig, *csig;
7981 MonoMethodBuilder *mb;
7986 MonoMethodPInvoke mpiinfo;
7987 MonoMethodPInvoke *piinfo = &mpiinfo;
7988 MonoMarshalSpec **mspecs;
7989 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7990 MonoImage *image = invoke->klass->image;
7993 // FIXME: include UnmanagedFunctionPointerAttribute info
7996 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7998 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8000 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8003 memset (&mpiinfo, 0, sizeof (mpiinfo));
8004 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8006 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8007 mono_method_get_marshal_info (invoke, mspecs);
8008 /* Freed below so don't alloc from mempool */
8009 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8012 name = g_strdup_printf ("wrapper_aot_native");
8013 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8014 mb->method->save_lmf = 1;
8017 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8020 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8021 info->d.managed_to_native.method = invoke;
8023 g_assert (!sig->hasthis);
8024 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8026 res = mono_mb_create_and_cache_full (cache, invoke,
8027 mb, csig, csig->param_count + 16,
8031 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8033 mono_metadata_free_marshal_spec (mspecs [i]);
8041 * mono_marshal_emit_managed_wrapper:
8043 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8044 * the delegate which wraps the managed method to be called. For closed delegates,
8045 * it could have fewer parameters than the method it wraps.
8046 * THIS_LOC is the memory location where the target of the delegate is stored.
8049 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8052 MonoMethodSignature *sig, *csig;
8058 /* we first do all conversions */
8059 for (i = 0; i < sig->param_count; i ++) {
8060 MonoType *t = sig->params [i];
8063 case MONO_TYPE_OBJECT:
8064 case MONO_TYPE_CLASS:
8065 case MONO_TYPE_VALUETYPE:
8066 case MONO_TYPE_ARRAY:
8067 case MONO_TYPE_SZARRAY:
8068 case MONO_TYPE_STRING:
8069 case MONO_TYPE_BOOLEAN:
8070 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8074 if (!sig->ret->byref) {
8075 switch (sig->ret->type) {
8076 case MONO_TYPE_STRING:
8077 csig->ret = &mono_defaults.int_class->byval_arg;
8084 MonoMethodSignature *sig, *csig;
8085 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8086 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8087 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8088 gboolean closed = FALSE;
8093 /* allocate local 0 (pointer) src_ptr */
8094 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8095 /* allocate local 1 (pointer) dst_ptr */
8096 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8097 /* allocate local 2 (boolean) delete_old */
8098 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8100 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8101 /* Closed delegate */
8102 g_assert (sig->param_count == invoke_sig->param_count + 1);
8104 /* Use a new signature without the first argument */
8105 sig = mono_metadata_signature_dup (sig);
8106 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8107 sig->param_count --;
8110 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8111 /* allocate local 3 to store the return value */
8112 mono_mb_add_local (mb, sig->ret);
8115 if (MONO_TYPE_ISSTRUCT (sig->ret))
8116 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8118 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8119 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8121 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8122 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8127 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8128 * mono_threads_attach_coop ();
8132 * ret = method (...);
8133 * } catch (Exception e) {
8134 * ex = mono_gchandle_new (e, false);
8136 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8137 * mono_threads_detach_coop ();
8140 * mono_marshal_ftnptr_eh_callback (ex);
8146 clauses = g_new0 (MonoExceptionClause, 2);
8148 clause_catch = &clauses [0];
8149 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8150 clause_catch->data.catch_class = mono_defaults.exception_class;
8152 clause_finally = &clauses [1];
8153 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8155 mono_mb_emit_icon (mb, 0);
8156 mono_mb_emit_stloc (mb, 2);
8158 mono_mb_emit_icon (mb, -1);
8159 mono_mb_emit_byte (mb, CEE_CONV_U4);
8160 mono_mb_emit_stloc (mb, ex_local);
8163 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8165 if (!mono_threads_is_coop_enabled ()) {
8166 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8167 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8169 /* mono_threads_attach_coop (); */
8170 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8171 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8172 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8173 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8174 mono_mb_emit_stloc (mb, attach_cookie_local);
8177 /* <interrupt check> */
8178 emit_thread_interrupt_checkpoint (mb);
8180 /* we first do all conversions */
8181 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8182 for (i = 0; i < sig->param_count; i ++) {
8183 MonoType *t = sig->params [i];
8186 case MONO_TYPE_OBJECT:
8187 case MONO_TYPE_CLASS:
8188 case MONO_TYPE_VALUETYPE:
8189 case MONO_TYPE_ARRAY:
8190 case MONO_TYPE_SZARRAY:
8191 case MONO_TYPE_STRING:
8192 case MONO_TYPE_BOOLEAN:
8193 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8203 if (target_handle) {
8204 mono_mb_emit_icon (mb, (gint32)target_handle);
8205 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8208 g_assert_not_reached ();
8210 } else if (closed) {
8211 mono_mb_emit_icon (mb, (gint32)target_handle);
8212 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8215 for (i = 0; i < sig->param_count; i++) {
8216 MonoType *t = sig->params [i];
8218 if (tmp_locals [i]) {
8220 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8222 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8225 mono_mb_emit_ldarg (mb, i);
8228 /* ret = method (...) */
8229 mono_mb_emit_managed_call (mb, method, NULL);
8231 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8232 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8233 mono_class_init (klass);
8234 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8235 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8236 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8237 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8238 mono_mb_emit_stloc (mb, m->vtaddr_var);
8242 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8243 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8244 } else if (!sig->ret->byref) {
8245 switch (sig->ret->type) {
8246 case MONO_TYPE_VOID:
8248 case MONO_TYPE_BOOLEAN:
8251 case MONO_TYPE_CHAR:
8263 case MONO_TYPE_OBJECT:
8264 mono_mb_emit_stloc (mb, 3);
8266 case MONO_TYPE_STRING:
8267 csig->ret = &mono_defaults.int_class->byval_arg;
8268 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8270 case MONO_TYPE_VALUETYPE:
8271 case MONO_TYPE_CLASS:
8272 case MONO_TYPE_SZARRAY:
8273 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8276 g_warning ("return type 0x%02x unknown", sig->ret->type);
8277 g_assert_not_reached ();
8280 mono_mb_emit_stloc (mb, 3);
8283 /* Convert byref arguments back */
8284 for (i = 0; i < sig->param_count; i ++) {
8285 MonoType *t = sig->params [i];
8286 MonoMarshalSpec *spec = mspecs [i + 1];
8288 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8289 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8291 else if (t->byref) {
8293 case MONO_TYPE_CLASS:
8294 case MONO_TYPE_VALUETYPE:
8295 case MONO_TYPE_OBJECT:
8296 case MONO_TYPE_STRING:
8297 case MONO_TYPE_BOOLEAN:
8298 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8304 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8305 /* The [Out] information is encoded in the delegate signature */
8307 case MONO_TYPE_SZARRAY:
8308 case MONO_TYPE_CLASS:
8309 case MONO_TYPE_VALUETYPE:
8310 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8313 g_assert_not_reached ();
8318 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8322 /* catch (Exception e) { */
8323 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8324 clause_catch->handler_offset = mono_mb_get_label (mb);
8326 mono_mb_emit_stloc (mb, e_local);
8328 /* ex = mono_gchandle_new (e, false); */
8329 mono_mb_emit_ldloc (mb, e_local);
8330 mono_mb_emit_icon (mb, 0);
8331 mono_mb_emit_icall (mb, mono_gchandle_new);
8332 mono_mb_emit_stloc (mb, ex_local);
8334 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8337 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8340 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8341 clause_finally->handler_offset = mono_mb_get_label (mb);
8343 if (!mono_threads_is_coop_enabled ()) {
8344 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8345 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8347 /* mono_threads_detach_coop (); */
8348 mono_mb_emit_ldloc (mb, attach_cookie_local);
8349 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8350 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8354 mono_mb_emit_ldloc (mb, ex_local);
8355 mono_mb_emit_icon (mb, -1);
8356 mono_mb_emit_byte (mb, CEE_CONV_U4);
8357 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8359 /* mono_marshal_ftnptr_eh_callback (ex) */
8360 mono_mb_emit_ldloc (mb, ex_local);
8361 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8364 mono_mb_patch_branch (mb, ex_m1_pos);
8366 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8368 /* } [endfinally] */
8369 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8371 mono_mb_patch_branch (mb, leave_try_pos);
8372 mono_mb_patch_branch (mb, leave_catch_pos);
8375 if (m->retobj_var) {
8376 mono_mb_emit_ldloc (mb, m->retobj_var);
8377 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8378 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8381 if (!MONO_TYPE_IS_VOID(sig->ret))
8382 mono_mb_emit_ldloc (mb, 3);
8383 mono_mb_emit_byte (mb, CEE_RET);
8386 mono_mb_set_clauses (mb, 2, clauses);
8394 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8396 MonoMethodSignature *sig;
8401 * Under windows, delegates passed to native code must use the STDCALL
8402 * calling convention.
8404 csig->call_convention = MONO_CALL_STDCALL;
8407 sig = mono_method_signature (method);
8409 /* Change default calling convention if needed */
8410 /* Why is this a modopt ? */
8411 if (sig->ret && sig->ret->num_mods) {
8412 for (i = 0; i < sig->ret->num_mods; ++i) {
8414 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8415 g_assert (mono_error_ok (&error));
8416 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8417 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8418 csig->call_convention = MONO_CALL_C;
8419 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8420 csig->call_convention = MONO_CALL_STDCALL;
8421 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8422 csig->call_convention = MONO_CALL_FASTCALL;
8423 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8424 csig->call_convention = MONO_CALL_THISCALL;
8431 * generates IL code to call managed methods from unmanaged code
8432 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8435 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8438 MonoMethodSignature *sig, *csig, *invoke_sig;
8439 MonoMethodBuilder *mb;
8440 MonoMethod *res, *invoke;
8441 MonoMarshalSpec **mspecs;
8442 MonoMethodPInvoke piinfo;
8445 EmitMarshalContext m;
8447 g_assert (method != NULL);
8448 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8451 * FIXME: Should cache the method+delegate type pair, since the same method
8452 * could be called with different delegates, thus different marshalling
8455 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8457 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8460 invoke = mono_get_delegate_invoke (delegate_klass);
8461 invoke_sig = mono_method_signature (invoke);
8463 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8464 mono_method_get_marshal_info (invoke, mspecs);
8466 sig = mono_method_signature (method);
8468 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8470 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8471 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8473 /* we copy the signature, so that we can modify it */
8475 /* Need to free this later */
8476 csig = mono_metadata_signature_dup (invoke_sig);
8478 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8482 memset (&m, 0, sizeof (m));
8488 m.image = method->klass->image;
8490 mono_marshal_set_callconv_from_modopt (invoke, csig);
8492 /* The attribute is only available in Net 2.0 */
8493 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8494 MonoCustomAttrInfo *cinfo;
8495 MonoCustomAttrEntry *attr;
8498 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8499 * contents of the attribute without constructing it, as that might not be
8500 * possible when running in cross-compiling mode.
8502 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8503 mono_error_assert_ok (&error);
8506 for (i = 0; i < cinfo->num_attrs; ++i) {
8507 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8508 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8509 attr = &cinfo->attrs [i];
8515 MonoArray *typed_args, *named_args;
8516 CattrNamedArg *arginfo;
8520 MonoBoolean set_last_error = 0;
8523 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8524 g_assert (mono_error_ok (&error));
8525 g_assert (mono_array_length (typed_args) == 1);
8528 o = mono_array_get (typed_args, MonoObject*, 0);
8529 call_conv = *(gint32*)mono_object_unbox (o);
8532 for (i = 0; i < mono_array_length (named_args); ++i) {
8533 CattrNamedArg *narg = &arginfo [i];
8535 o = mono_array_get (named_args, MonoObject*, i);
8537 g_assert (narg->field);
8538 if (!strcmp (narg->field->name, "CharSet")) {
8539 charset = *(gint32*)mono_object_unbox (o);
8540 } else if (!strcmp (narg->field->name, "SetLastError")) {
8541 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8542 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8543 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8544 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8545 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8547 g_assert_not_reached ();
8553 memset (&piinfo, 0, sizeof (piinfo));
8555 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8557 csig->call_convention = call_conv - 1;
8560 if (cinfo && !cinfo->cached)
8561 mono_custom_attrs_free (cinfo);
8564 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8566 if (!target_handle) {
8569 // FIXME: Associate it with the method+delegate_klass pair
8570 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8571 info->d.native_to_managed.method = method;
8572 info->d.native_to_managed.klass = delegate_klass;
8574 res = mono_mb_create_and_cache_full (cache, method,
8575 mb, csig, sig->param_count + 16,
8581 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8585 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8587 mono_metadata_free_marshal_spec (mspecs [i]);
8590 /* mono_method_print_code (res); */
8596 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8600 MonoMethodSignature *sig;
8601 MonoMethodBuilder *mb;
8606 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8608 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8611 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8612 MonoMethodSignature *csig;
8613 MonoMarshalSpec **mspecs;
8614 EmitMarshalContext m;
8616 sig = mono_method_signature (method);
8617 g_assert (!sig->hasthis);
8619 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8620 mono_method_get_marshal_info (method, mspecs);
8622 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8623 csig = mono_metadata_signature_dup_full (image, sig);
8627 memset (&m, 0, sizeof (m));
8635 mono_marshal_set_callconv_from_modopt (method, csig);
8637 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8639 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8644 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8647 for (i = sig->param_count; i >= 0; i--)
8649 mono_metadata_free_marshal_spec (mspecs [i]);
8652 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8653 mono_error_assert_ok (&error);
8654 return compiled_ptr;
8657 sig = mono_method_signature (method);
8658 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8660 param_count = sig->param_count + sig->hasthis;
8662 for (i = 0; i < param_count; i++)
8663 mono_mb_emit_ldarg (mb, i);
8665 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8666 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8668 mono_mb_emit_op (mb, CEE_CALL, method);
8669 mono_mb_emit_byte (mb, CEE_RET);
8674 method = mono_mb_create (mb, sig, param_count, NULL);
8677 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8678 mono_error_assert_ok (&error);
8679 return compiled_ptr;
8685 * The code directly following this is the cache hit, value positive branch
8687 * This function takes a new method builder with 0 locals and adds two locals
8688 * to create multiple out-branches and the fall through state of having the object
8689 * on the stack after a cache miss
8692 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8693 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8694 MonoMethodBuilder *mb)
8698 /* allocate local 0 (pointer) obj_vtable */
8699 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8700 /* allocate local 1 (pointer) cached_vtable */
8701 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8704 mono_mb_emit_ldarg (mb, obj_arg_position);
8705 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8707 /*obj_vtable = obj->vtable;*/
8708 mono_mb_emit_ldarg (mb, obj_arg_position);
8709 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8710 mono_mb_emit_byte (mb, CEE_LDIND_I);
8711 mono_mb_emit_stloc (mb, 0);
8713 /* cached_vtable = *cache*/
8714 mono_mb_emit_ldarg (mb, cache_arg_position);
8715 mono_mb_emit_byte (mb, CEE_LDIND_I);
8716 mono_mb_emit_stloc (mb, 1);
8718 mono_mb_emit_ldloc (mb, 1);
8719 mono_mb_emit_byte (mb, CEE_LDC_I4);
8720 mono_mb_emit_i4 (mb, ~0x1);
8721 mono_mb_emit_byte (mb, CEE_CONV_I);
8722 mono_mb_emit_byte (mb, CEE_AND);
8723 mono_mb_emit_ldloc (mb, 0);
8724 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8725 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8727 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8728 mono_mb_emit_ldloc (mb, 1);
8729 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8730 mono_mb_emit_byte (mb, CEE_CONV_U);
8731 mono_mb_emit_byte (mb, CEE_AND);
8732 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8733 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8736 mono_mb_patch_branch (mb, cache_miss_pos);
8739 mono_mb_emit_ldarg (mb, obj_arg_position);
8740 mono_mb_emit_ldarg (mb, class_arg_position);
8741 mono_mb_emit_ldarg (mb, cache_arg_position);
8742 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8745 #endif /* DISABLE_JIT */
8748 * This does the equivalent of mono_object_castclass_with_cache.
8751 mono_marshal_get_castclass_with_cache (void)
8753 static MonoMethod *cached;
8755 MonoMethodBuilder *mb;
8756 MonoMethodSignature *sig;
8757 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8760 const int obj_arg_position = 0;
8761 const int class_arg_position = 1;
8762 const int cache_arg_position = 2;
8767 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8768 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8769 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8770 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8771 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8772 sig->ret = &mono_defaults.object_class->byval_arg;
8776 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8777 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8778 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8781 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8782 mono_mb_emit_ldarg (mb, obj_arg_position);
8783 mono_mb_emit_byte (mb, CEE_RET);
8786 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8787 mono_mb_patch_branch (mb, invalid_cast_pos);
8788 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8791 mono_mb_patch_branch (mb, return_null_pos);
8792 mono_mb_emit_byte (mb, CEE_LDNULL);
8793 mono_mb_emit_byte (mb, CEE_RET);
8794 #endif /* DISABLE_JIT */
8796 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8797 res = mono_mb_create (mb, sig, 8, info);
8800 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8801 mono_free_method (res);
8802 mono_metadata_free_method_signature (sig);
8809 /* this is an icall */
8811 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8814 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8815 if (mono_error_set_pending_exception (&error))
8818 #ifndef DISABLE_REMOTING
8819 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8823 uintptr_t cache_update = (uintptr_t)obj->vtable;
8825 cache_update = cache_update | 0x1;
8827 *cache = cache_update;
8833 * This does the equivalent of mono_object_isinst_with_cache.
8836 mono_marshal_get_isinst_with_cache (void)
8838 static MonoMethod *cached;
8840 MonoMethodBuilder *mb;
8841 MonoMethodSignature *sig;
8842 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8845 const int obj_arg_position = 0;
8846 const int class_arg_position = 1;
8847 const int cache_arg_position = 2;
8852 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8853 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8855 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8857 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8859 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8860 sig->ret = &mono_defaults.object_class->byval_arg;
8864 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8865 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8866 // Return the object gotten via the slow path.
8867 mono_mb_emit_byte (mb, CEE_RET);
8870 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8871 mono_mb_patch_branch (mb, return_null_pos);
8872 mono_mb_emit_byte (mb, CEE_LDNULL);
8873 mono_mb_emit_byte (mb, CEE_RET);
8876 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8877 mono_mb_emit_ldarg (mb, obj_arg_position);
8878 mono_mb_emit_byte (mb, CEE_RET);
8881 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8882 res = mono_mb_create (mb, sig, 8, info);
8885 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8886 mono_free_method (res);
8887 mono_metadata_free_method_signature (sig);
8895 * mono_marshal_get_isinst:
8896 * @klass: the type of the field
8898 * This method generates a function which can be used to check if an object is
8899 * an instance of the given type, icluding the case where the object is a proxy.
8900 * The generated function has the following signature:
8901 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8904 mono_marshal_get_isinst (MonoClass *klass)
8906 static MonoMethodSignature *isint_sig = NULL;
8910 int pos_was_ok, pos_end;
8911 #ifndef DISABLE_REMOTING
8912 int pos_end2, pos_failed;
8915 MonoMethodBuilder *mb;
8917 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8918 if ((res = mono_marshal_find_in_cache (cache, klass)))
8922 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8923 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8924 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8925 isint_sig->pinvoke = 0;
8928 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8929 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8932 mb->method->save_lmf = 1;
8935 /* check if the object is a proxy that needs special cast */
8936 mono_mb_emit_ldarg (mb, 0);
8937 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8938 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8940 /* The result of MONO_CISINST can be:
8941 0) the type check succeeded
8942 1) the type check did not succeed
8943 2) a CanCastTo call is needed */
8944 #ifndef DISABLE_REMOTING
8945 mono_mb_emit_byte (mb, CEE_DUP);
8946 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8948 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8949 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8951 /* get the real proxy from the transparent proxy*/
8953 mono_mb_emit_ldarg (mb, 0);
8954 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8955 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8959 mono_mb_patch_branch (mb, pos_failed);
8960 mono_mb_emit_byte (mb, CEE_LDNULL);
8961 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8965 mono_mb_patch_branch (mb, pos_was_ok);
8966 mono_mb_emit_byte (mb, CEE_POP);
8967 mono_mb_emit_ldarg (mb, 0);
8971 mono_mb_patch_branch (mb, pos_end);
8972 mono_mb_patch_branch (mb, pos_end2);
8973 mono_mb_emit_byte (mb, CEE_RET);
8975 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8979 mono_mb_emit_byte (mb, CEE_LDNULL);
8980 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8984 mono_mb_patch_branch (mb, pos_was_ok);
8985 mono_mb_emit_ldarg (mb, 0);
8989 mono_mb_patch_branch (mb, pos_end);
8990 mono_mb_emit_byte (mb, CEE_RET);
8991 #endif /* DISABLE_REMOTING */
8992 #endif /* DISABLE_JIT */
8994 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8995 info->d.proxy.klass = klass;
8996 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
9003 * mono_marshal_get_castclass:
9004 * @klass: the type of the field
9006 * This method generates a function which can be used to cast an object to
9007 * an instance of the given type, icluding the case where the object is a proxy.
9008 * The generated function has the following signature:
9009 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9012 mono_marshal_get_castclass (MonoClass *klass)
9014 static MonoMethodSignature *castclass_sig = NULL;
9017 #ifndef DISABLE_REMOTING
9018 int pos_was_ok, pos_was_ok2;
9021 MonoMethodBuilder *mb;
9024 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9025 if ((res = mono_marshal_find_in_cache (cache, klass)))
9028 if (!castclass_sig) {
9029 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9030 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9031 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9032 castclass_sig->pinvoke = 0;
9035 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9036 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9039 mb->method->save_lmf = 1;
9042 /* check if the object is a proxy that needs special cast */
9043 mono_mb_emit_ldarg (mb, 0);
9044 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9045 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9047 /* The result of MONO_CCASTCLASS can be:
9048 0) the cast is valid
9049 1) cast of unknown proxy type
9050 or an exception if the cast is is invalid
9052 #ifndef DISABLE_REMOTING
9053 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9055 /* get the real proxy from the transparent proxy*/
9057 mono_mb_emit_ldarg (mb, 0);
9058 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9059 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9062 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9065 mono_mb_patch_branch (mb, pos_was_ok);
9066 mono_mb_patch_branch (mb, pos_was_ok2);
9068 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
9069 mono_mb_emit_byte (mb, CEE_POP);
9070 #endif /* DISABLE_REMOTING */
9072 mono_mb_emit_ldarg (mb, 0);
9075 mono_mb_emit_byte (mb, CEE_RET);
9076 #endif /* DISABLE_JIT */
9078 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9080 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
9088 * mono_marshal_get_struct_to_ptr:
9091 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9094 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9096 MonoMethodBuilder *mb;
9097 static MonoMethod *stoptr = NULL;
9101 g_assert (klass != NULL);
9103 mono_marshal_load_type_info (klass);
9105 if (klass->marshal_info->str_to_ptr)
9106 return klass->marshal_info->str_to_ptr;
9109 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9112 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9115 if (klass->blittable) {
9116 mono_mb_emit_byte (mb, CEE_LDARG_1);
9117 mono_mb_emit_byte (mb, CEE_LDARG_0);
9118 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9119 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9120 mono_mb_emit_byte (mb, CEE_PREFIX1);
9121 mono_mb_emit_byte (mb, CEE_CPBLK);
9124 /* allocate local 0 (pointer) src_ptr */
9125 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9126 /* allocate local 1 (pointer) dst_ptr */
9127 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9128 /* allocate local 2 (boolean) delete_old */
9129 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9130 mono_mb_emit_byte (mb, CEE_LDARG_2);
9131 mono_mb_emit_stloc (mb, 2);
9133 /* initialize src_ptr to point to the start of object data */
9134 mono_mb_emit_byte (mb, CEE_LDARG_0);
9135 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9136 mono_mb_emit_stloc (mb, 0);
9138 /* initialize dst_ptr */
9139 mono_mb_emit_byte (mb, CEE_LDARG_1);
9140 mono_mb_emit_stloc (mb, 1);
9142 emit_struct_conv (mb, klass, FALSE);
9145 mono_mb_emit_byte (mb, CEE_RET);
9147 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9148 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9151 mono_marshal_lock ();
9152 if (!klass->marshal_info->str_to_ptr)
9153 klass->marshal_info->str_to_ptr = res;
9155 res = klass->marshal_info->str_to_ptr;
9156 mono_marshal_unlock ();
9161 * mono_marshal_get_ptr_to_struct:
9164 * generates IL code for PtrToStructure (IntPtr src, object structure)
9167 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9169 MonoMethodBuilder *mb;
9170 static MonoMethodSignature *ptostr = NULL;
9174 g_assert (klass != NULL);
9176 mono_marshal_load_type_info (klass);
9178 if (klass->marshal_info->ptr_to_str)
9179 return klass->marshal_info->ptr_to_str;
9182 MonoMethodSignature *sig;
9184 /* Create the signature corresponding to
9185 static void PtrToStructure (IntPtr ptr, object structure);
9186 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9187 sig = mono_create_icall_signature ("void ptr object");
9188 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9190 mono_memory_barrier ();
9194 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9197 if (klass->blittable) {
9198 mono_mb_emit_byte (mb, CEE_LDARG_1);
9199 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9200 mono_mb_emit_byte (mb, CEE_LDARG_0);
9201 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9202 mono_mb_emit_byte (mb, CEE_PREFIX1);
9203 mono_mb_emit_byte (mb, CEE_CPBLK);
9206 /* allocate local 0 (pointer) src_ptr */
9207 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9208 /* allocate local 1 (pointer) dst_ptr */
9209 mono_mb_add_local (mb, &klass->this_arg);
9211 /* initialize src_ptr to point to the start of object data */
9212 mono_mb_emit_byte (mb, CEE_LDARG_0);
9213 mono_mb_emit_stloc (mb, 0);
9215 /* initialize dst_ptr */
9216 mono_mb_emit_byte (mb, CEE_LDARG_1);
9217 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9218 mono_mb_emit_stloc (mb, 1);
9220 emit_struct_conv (mb, klass, TRUE);
9223 mono_mb_emit_byte (mb, CEE_RET);
9225 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9226 res = mono_mb_create (mb, ptostr, 0, info);
9229 mono_marshal_lock ();
9230 if (!klass->marshal_info->ptr_to_str)
9231 klass->marshal_info->ptr_to_str = res;
9233 res = klass->marshal_info->ptr_to_str;
9234 mono_marshal_unlock ();
9239 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9240 * This is used to avoid infinite recursion since it is hard to determine where to
9241 * replace a method with its synchronized wrapper, and where not.
9242 * The runtime should execute METHOD instead of the wrapper.
9245 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9247 MonoMethodBuilder *mb;
9249 MonoMethodSignature *sig;
9251 MonoGenericContext *ctx = NULL;
9252 MonoGenericContainer *container = NULL;
9254 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9255 ctx = &((MonoMethodInflated*)method)->context;
9256 method = ((MonoMethodInflated*)method)->declaring;
9257 container = mono_method_get_generic_container (method);
9259 container = method->klass->generic_container;
9260 g_assert (container);
9263 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9265 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9266 mono_mb_emit_byte (mb, CEE_RET);
9268 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9270 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9271 info->d.synchronized_inner.method = method;
9272 res = mono_mb_create (mb, sig, 0, info);
9276 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9277 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9283 * generates IL code for the synchronized wrapper: the generated method
9284 * calls METHOD while locking 'this' or the parent type.
9287 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9289 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9290 MonoMethodSignature *sig;
9291 MonoExceptionClause *clause;
9292 MonoMethodBuilder *mb;
9296 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9297 MonoGenericContext *ctx = NULL;
9298 MonoMethod *orig_method = NULL;
9299 MonoGenericContainer *container = NULL;
9303 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9306 /* FIXME: Support generic methods too */
9307 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9308 orig_method = method;
9309 ctx = &((MonoMethodInflated*)method)->context;
9310 method = ((MonoMethodInflated*)method)->declaring;
9311 container = mono_method_get_generic_container (method);
9313 container = method->klass->generic_container;
9314 g_assert (container);
9321 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9322 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9326 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9327 if ((res = mono_marshal_find_in_cache (cache, method)))
9331 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9334 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9336 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9337 info->d.synchronized.method = method;
9340 mb->skip_visibility = 1;
9342 if (!MONO_TYPE_IS_VOID (sig->ret))
9343 ret_local = mono_mb_add_local (mb, sig->ret);
9346 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9347 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9349 /* This will throw the type load exception when the wrapper is compiled */
9350 mono_mb_emit_byte (mb, CEE_LDNULL);
9351 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9352 mono_mb_emit_byte (mb, CEE_POP);
9354 if (!MONO_TYPE_IS_VOID (sig->ret))
9355 mono_mb_emit_ldloc (mb, ret_local);
9356 mono_mb_emit_byte (mb, CEE_RET);
9359 res = mono_mb_create_and_cache_full (cache, method,
9360 mb, sig, sig->param_count + 16, info, NULL);
9368 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9369 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9371 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9372 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9375 mono_marshal_lock ();
9377 if (!enter_method) {
9378 MonoMethodDesc *desc;
9380 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9381 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9382 g_assert (enter_method);
9383 mono_method_desc_free (desc);
9385 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9386 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9387 g_assert (exit_method);
9388 mono_method_desc_free (desc);
9390 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9391 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9392 g_assert (gettypefromhandle_method);
9393 mono_method_desc_free (desc);
9396 mono_marshal_unlock ();
9399 /* Push this or the type object */
9400 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9401 /* We have special handling for this in the JIT */
9402 int index = mono_mb_add_data (mb, method->klass);
9403 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9404 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9405 mono_mb_emit_i4 (mb, index);
9407 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9410 mono_mb_emit_ldarg (mb, 0);
9411 mono_mb_emit_stloc (mb, this_local);
9413 /* Call Monitor::Enter() */
9414 mono_mb_emit_ldloc (mb, this_local);
9415 mono_mb_emit_ldloc_addr (mb, taken_local);
9416 mono_mb_emit_managed_call (mb, enter_method, NULL);
9418 clause->try_offset = mono_mb_get_label (mb);
9420 /* Call the method */
9422 mono_mb_emit_ldarg (mb, 0);
9423 for (i = 0; i < sig->param_count; i++)
9424 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9428 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9429 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9431 mono_mb_emit_managed_call (mb, method, NULL);
9434 if (!MONO_TYPE_IS_VOID (sig->ret))
9435 mono_mb_emit_stloc (mb, ret_local);
9437 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9439 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9440 clause->handler_offset = mono_mb_get_label (mb);
9442 /* Call Monitor::Exit() if needed */
9443 mono_mb_emit_ldloc (mb, taken_local);
9444 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9445 mono_mb_emit_ldloc (mb, this_local);
9446 mono_mb_emit_managed_call (mb, exit_method, NULL);
9447 mono_mb_patch_branch (mb, pos2);
9448 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9450 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9452 mono_mb_patch_branch (mb, pos);
9453 if (!MONO_TYPE_IS_VOID (sig->ret))
9454 mono_mb_emit_ldloc (mb, ret_local);
9455 mono_mb_emit_byte (mb, CEE_RET);
9457 mono_mb_set_clauses (mb, 1, clause);
9462 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9463 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9465 res = mono_mb_create_and_cache_full (cache, method,
9466 mb, sig, sig->param_count + 16, info, NULL);
9475 * the returned method calls 'method' unboxing the this argument
9478 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9480 MonoMethodSignature *sig = mono_method_signature (method);
9482 MonoMethodBuilder *mb;
9487 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9489 if ((res = mono_marshal_find_in_cache (cache, method)))
9492 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9494 g_assert (sig->hasthis);
9497 mono_mb_emit_ldarg (mb, 0);
9498 mono_mb_emit_icon (mb, sizeof (MonoObject));
9499 mono_mb_emit_byte (mb, CEE_ADD);
9500 for (i = 0; i < sig->param_count; ++i)
9501 mono_mb_emit_ldarg (mb, i + 1);
9502 mono_mb_emit_managed_call (mb, method, NULL);
9503 mono_mb_emit_byte (mb, CEE_RET);
9506 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9507 info->d.unbox.method = method;
9509 res = mono_mb_create_and_cache_full (cache, method,
9510 mb, sig, sig->param_count + 16, info, NULL);
9513 /* mono_method_print_code (res); */
9519 STELEMREF_OBJECT, /*no check at all*/
9520 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9521 STELEMREF_CLASS, /*only the klass->parents check*/
9522 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9523 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9524 STELEMREF_KIND_COUNT
9527 static const char *strelemref_wrapper_name[] = {
9528 "object", "sealed_class", "class", "interface", "complex"
9532 is_monomorphic_array (MonoClass *klass)
9534 MonoClass *element_class;
9535 if (klass->rank != 1)
9538 element_class = klass->element_class;
9539 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9543 get_virtual_stelemref_kind (MonoClass *element_class)
9545 if (element_class == mono_defaults.object_class)
9546 return STELEMREF_OBJECT;
9547 if (is_monomorphic_array (element_class))
9548 return STELEMREF_SEALED_CLASS;
9549 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9550 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9551 #ifdef COMPRESSED_INTERFACE_BITMAP
9552 return STELEMREF_COMPLEX;
9554 return STELEMREF_INTERFACE;
9556 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9557 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9558 return STELEMREF_COMPLEX;
9559 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9560 return STELEMREF_SEALED_CLASS;
9561 return STELEMREF_CLASS;
9567 load_array_element_address (MonoMethodBuilder *mb)
9569 mono_mb_emit_ldarg (mb, 0);
9570 mono_mb_emit_ldarg (mb, 1);
9571 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9575 load_array_class (MonoMethodBuilder *mb, int aklass)
9577 mono_mb_emit_ldarg (mb, 0);
9578 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9579 mono_mb_emit_byte (mb, CEE_LDIND_I);
9580 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9581 mono_mb_emit_byte (mb, CEE_LDIND_I);
9582 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9583 mono_mb_emit_byte (mb, CEE_LDIND_I);
9584 mono_mb_emit_stloc (mb, aklass);
9588 load_value_class (MonoMethodBuilder *mb, int vklass)
9590 mono_mb_emit_ldarg (mb, 2);
9591 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9592 mono_mb_emit_byte (mb, CEE_LDIND_I);
9593 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9594 mono_mb_emit_byte (mb, CEE_LDIND_I);
9595 mono_mb_emit_stloc (mb, vklass);
9601 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9603 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9604 printf ("slow vstore of %s\n", name);
9611 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9612 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9613 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9614 * - Add a case for arrays of arrays.
9617 get_virtual_stelemref_wrapper (int kind)
9619 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9620 static MonoMethodSignature *signature;
9621 MonoMethodBuilder *mb;
9624 const char *param_names [16];
9625 guint32 b1, b2, b3, b4;
9626 int aklass, vklass, vtable, uiid;
9627 int array_slot_addr;
9630 if (cached_methods [kind])
9631 return cached_methods [kind];
9633 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9634 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9638 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9640 /* void this::stelemref (size_t idx, void* value) */
9641 sig->ret = &mono_defaults.void_class->byval_arg;
9642 sig->hasthis = TRUE;
9643 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9644 sig->params [1] = &mono_defaults.object_class->byval_arg;
9649 param_names [0] = "index";
9650 param_names [1] = "value";
9651 mono_mb_set_param_names (mb, param_names);
9653 /*For now simply call plain old stelemref*/
9655 case STELEMREF_OBJECT:
9656 /* ldelema (implicit bound check) */
9657 load_array_element_address (mb);
9659 mono_mb_emit_ldarg (mb, 2);
9660 mono_mb_emit_byte (mb, CEE_STIND_REF);
9661 mono_mb_emit_byte (mb, CEE_RET);
9664 case STELEMREF_COMPLEX:
9666 <ldelema (bound check)>
9669 if (!mono_object_isinst (value, aklass))
9673 *array_slot_addr = value;
9676 throw new ArrayTypeMismatchException ();
9679 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9680 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9684 /*Use this to debug/record stores that are going thru the slow path*/
9685 MonoMethodSignature *csig;
9686 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9687 csig->ret = &mono_defaults.void_class->byval_arg;
9688 csig->params [0] = &mono_defaults.object_class->byval_arg;
9689 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9690 csig->params [2] = &mono_defaults.object_class->byval_arg;
9691 mono_mb_emit_ldarg (mb, 0);
9692 mono_mb_emit_ldarg (mb, 1);
9693 mono_mb_emit_ldarg (mb, 2);
9694 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9698 /* ldelema (implicit bound check) */
9699 load_array_element_address (mb);
9700 mono_mb_emit_stloc (mb, array_slot_addr);
9702 /* if (!value) goto do_store */
9703 mono_mb_emit_ldarg (mb, 2);
9704 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9706 /* aklass = array->vtable->klass->element_class */
9707 load_array_class (mb, aklass);
9709 /*if (mono_object_isinst (value, aklass)) */
9710 mono_mb_emit_ldarg (mb, 2);
9711 mono_mb_emit_ldloc (mb, aklass);
9712 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9713 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9716 mono_mb_patch_branch (mb, b1);
9717 mono_mb_emit_ldloc (mb, array_slot_addr);
9718 mono_mb_emit_ldarg (mb, 2);
9719 mono_mb_emit_byte (mb, CEE_STIND_REF);
9720 mono_mb_emit_byte (mb, CEE_RET);
9723 mono_mb_patch_branch (mb, b2);
9725 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9728 case STELEMREF_SEALED_CLASS:
9730 <ldelema (bound check)>
9734 aklass = array->vtable->klass->element_class;
9735 vklass = value->vtable->klass;
9737 if (vklass != aklass)
9741 *array_slot_addr = value;
9744 throw new ArrayTypeMismatchException ();
9746 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9747 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9748 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9751 /* ldelema (implicit bound check) */
9752 load_array_element_address (mb);
9753 mono_mb_emit_stloc (mb, array_slot_addr);
9755 /* if (!value) goto do_store */
9756 mono_mb_emit_ldarg (mb, 2);
9757 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9759 /* aklass = array->vtable->klass->element_class */
9760 load_array_class (mb, aklass);
9762 /* vklass = value->vtable->klass */
9763 load_value_class (mb, vklass);
9765 /*if (vklass != aklass) goto do_exception; */
9766 mono_mb_emit_ldloc (mb, aklass);
9767 mono_mb_emit_ldloc (mb, vklass);
9768 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9771 mono_mb_patch_branch (mb, b1);
9772 mono_mb_emit_ldloc (mb, array_slot_addr);
9773 mono_mb_emit_ldarg (mb, 2);
9774 mono_mb_emit_byte (mb, CEE_STIND_REF);
9775 mono_mb_emit_byte (mb, CEE_RET);
9778 mono_mb_patch_branch (mb, b2);
9779 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9782 case STELEMREF_CLASS:
9785 <ldelema (bound check)>
9789 aklass = array->vtable->klass->element_class;
9790 vklass = value->vtable->klass;
9792 if (vklass->idepth < aklass->idepth)
9795 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9799 *array_slot_addr = value;
9803 throw new ArrayTypeMismatchException ();
9805 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9806 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9807 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9809 /* ldelema (implicit bound check) */
9810 load_array_element_address (mb);
9811 mono_mb_emit_stloc (mb, array_slot_addr);
9813 /* if (!value) goto do_store */
9814 mono_mb_emit_ldarg (mb, 2);
9815 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9817 /* aklass = array->vtable->klass->element_class */
9818 load_array_class (mb, aklass);
9820 /* vklass = value->vtable->klass */
9821 load_value_class (mb, vklass);
9823 /*if (mono_object_isinst (value, aklass)) */
9824 mono_mb_emit_ldarg (mb, 2);
9825 mono_mb_emit_ldloc (mb, aklass);
9826 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9827 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9829 /* if (vklass->idepth < aklass->idepth) goto failue */
9830 mono_mb_emit_ldloc (mb, vklass);
9831 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9832 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9834 mono_mb_emit_ldloc (mb, aklass);
9835 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9836 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9838 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9840 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9841 mono_mb_emit_ldloc (mb, vklass);
9842 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9843 mono_mb_emit_byte (mb, CEE_LDIND_I);
9845 mono_mb_emit_ldloc (mb, aklass);
9846 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9847 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9848 mono_mb_emit_icon (mb, 1);
9849 mono_mb_emit_byte (mb, CEE_SUB);
9850 mono_mb_emit_icon (mb, sizeof (void*));
9851 mono_mb_emit_byte (mb, CEE_MUL);
9852 mono_mb_emit_byte (mb, CEE_ADD);
9853 mono_mb_emit_byte (mb, CEE_LDIND_I);
9855 mono_mb_emit_ldloc (mb, aklass);
9856 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9859 mono_mb_patch_branch (mb, b1);
9860 mono_mb_emit_ldloc (mb, array_slot_addr);
9861 mono_mb_emit_ldarg (mb, 2);
9862 mono_mb_emit_byte (mb, CEE_STIND_REF);
9863 mono_mb_emit_byte (mb, CEE_RET);
9866 mono_mb_patch_branch (mb, b2);
9867 mono_mb_patch_branch (mb, b3);
9868 mono_mb_patch_branch (mb, b4);
9870 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9873 case STELEMREF_INTERFACE:
9880 klass = array->obj.vtable->klass->element_class;
9882 uiid = klass->interface_id;
9883 if (uiid > vt->max_interface_id)
9885 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9888 mono_array_setref (array, index, value);
9891 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9893 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9894 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9895 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9896 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9898 /* ldelema (implicit bound check) */
9899 load_array_element_address (mb);
9900 mono_mb_emit_stloc (mb, array_slot_addr);
9902 /* if (!value) goto do_store */
9903 mono_mb_emit_ldarg (mb, 2);
9904 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9906 /* klass = array->vtable->klass->element_class */
9907 load_array_class (mb, aklass);
9909 /* vt = value->vtable */
9910 mono_mb_emit_ldarg (mb, 2);
9911 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9912 mono_mb_emit_byte (mb, CEE_LDIND_I);
9913 mono_mb_emit_stloc (mb, vtable);
9915 /* uiid = klass->interface_id; */
9916 mono_mb_emit_ldloc (mb, aklass);
9917 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9918 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9919 mono_mb_emit_stloc (mb, uiid);
9921 /*if (uiid > vt->max_interface_id)*/
9922 mono_mb_emit_ldloc (mb, uiid);
9923 mono_mb_emit_ldloc (mb, vtable);
9924 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9925 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9926 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9928 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9930 /*vt->interface_bitmap*/
9931 mono_mb_emit_ldloc (mb, vtable);
9932 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9933 mono_mb_emit_byte (mb, CEE_LDIND_I);
9936 mono_mb_emit_ldloc (mb, uiid);
9937 mono_mb_emit_icon (mb, 3);
9938 mono_mb_emit_byte (mb, CEE_SHR_UN);
9940 /*vt->interface_bitmap [(uiid) >> 3]*/
9941 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9942 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9944 /*(1 << ((uiid)&7)))*/
9945 mono_mb_emit_icon (mb, 1);
9946 mono_mb_emit_ldloc (mb, uiid);
9947 mono_mb_emit_icon (mb, 7);
9948 mono_mb_emit_byte (mb, CEE_AND);
9949 mono_mb_emit_byte (mb, CEE_SHL);
9951 /*bitwise and the whole thing*/
9952 mono_mb_emit_byte (mb, CEE_AND);
9953 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9956 mono_mb_patch_branch (mb, b1);
9957 mono_mb_emit_ldloc (mb, array_slot_addr);
9958 mono_mb_emit_ldarg (mb, 2);
9959 mono_mb_emit_byte (mb, CEE_STIND_REF);
9960 mono_mb_emit_byte (mb, CEE_RET);
9963 mono_mb_patch_branch (mb, b2);
9964 mono_mb_patch_branch (mb, b3);
9965 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9969 mono_mb_emit_ldarg (mb, 0);
9970 mono_mb_emit_ldarg (mb, 1);
9971 mono_mb_emit_ldarg (mb, 2);
9972 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9973 mono_mb_emit_byte (mb, CEE_RET);
9976 #endif /* DISABLE_JIT */
9977 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9978 info->d.virtual_stelemref.kind = kind;
9979 res = mono_mb_create (mb, signature, 4, info);
9980 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9982 mono_marshal_lock ();
9983 if (!cached_methods [kind]) {
9984 cached_methods [kind] = res;
9985 mono_marshal_unlock ();
9987 mono_marshal_unlock ();
9988 mono_free_method (res);
9992 return cached_methods [kind];
9996 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10000 g_assert (array_class->rank == 1);
10001 kind = get_virtual_stelemref_kind (array_class->element_class);
10003 return get_virtual_stelemref_wrapper (kind);
10007 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10012 *nwrappers = STELEMREF_KIND_COUNT;
10013 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10014 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10015 res [i] = get_virtual_stelemref_wrapper (i);
10020 mono_marshal_get_stelemref (void)
10022 static MonoMethod* ret = NULL;
10023 MonoMethodSignature *sig;
10024 MonoMethodBuilder *mb;
10027 guint32 b1, b2, b3, b4;
10029 int aklass, vklass;
10030 int array_slot_addr;
10035 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10038 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10040 /* void stelemref (void* array, int idx, void* value) */
10041 sig->ret = &mono_defaults.void_class->byval_arg;
10042 sig->params [0] = &mono_defaults.object_class->byval_arg;
10043 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10044 sig->params [2] = &mono_defaults.object_class->byval_arg;
10046 #ifndef DISABLE_JIT
10047 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10048 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10049 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10053 <ldelema (bound check)>
10057 aklass = array->vtable->klass->element_class;
10058 vklass = value->vtable->klass;
10060 if (vklass->idepth < aklass->idepth)
10063 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10067 *array_slot_addr = value;
10071 if (mono_object_isinst (value, aklass))
10074 throw new ArrayTypeMismatchException ();
10077 /* ldelema (implicit bound check) */
10078 mono_mb_emit_ldarg (mb, 0);
10079 mono_mb_emit_ldarg (mb, 1);
10080 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10081 mono_mb_emit_stloc (mb, array_slot_addr);
10083 /* if (!value) goto do_store */
10084 mono_mb_emit_ldarg (mb, 2);
10085 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10087 /* aklass = array->vtable->klass->element_class */
10088 mono_mb_emit_ldarg (mb, 0);
10089 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10090 mono_mb_emit_byte (mb, CEE_LDIND_I);
10091 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10092 mono_mb_emit_byte (mb, CEE_LDIND_I);
10093 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10094 mono_mb_emit_byte (mb, CEE_LDIND_I);
10095 mono_mb_emit_stloc (mb, aklass);
10097 /* vklass = value->vtable->klass */
10098 mono_mb_emit_ldarg (mb, 2);
10099 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10100 mono_mb_emit_byte (mb, CEE_LDIND_I);
10101 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10102 mono_mb_emit_byte (mb, CEE_LDIND_I);
10103 mono_mb_emit_stloc (mb, vklass);
10105 /* if (vklass->idepth < aklass->idepth) goto failue */
10106 mono_mb_emit_ldloc (mb, vklass);
10107 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10108 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10110 mono_mb_emit_ldloc (mb, aklass);
10111 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10112 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10114 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10116 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10117 mono_mb_emit_ldloc (mb, vklass);
10118 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10119 mono_mb_emit_byte (mb, CEE_LDIND_I);
10121 mono_mb_emit_ldloc (mb, aklass);
10122 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10123 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10124 mono_mb_emit_icon (mb, 1);
10125 mono_mb_emit_byte (mb, CEE_SUB);
10126 mono_mb_emit_icon (mb, sizeof (void*));
10127 mono_mb_emit_byte (mb, CEE_MUL);
10128 mono_mb_emit_byte (mb, CEE_ADD);
10129 mono_mb_emit_byte (mb, CEE_LDIND_I);
10131 mono_mb_emit_ldloc (mb, aklass);
10133 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10135 copy_pos = mono_mb_get_label (mb);
10137 mono_mb_patch_branch (mb, b1);
10138 mono_mb_emit_ldloc (mb, array_slot_addr);
10139 mono_mb_emit_ldarg (mb, 2);
10140 mono_mb_emit_byte (mb, CEE_STIND_REF);
10142 mono_mb_emit_byte (mb, CEE_RET);
10145 mono_mb_patch_branch (mb, b2);
10146 mono_mb_patch_branch (mb, b3);
10148 mono_mb_emit_ldarg (mb, 2);
10149 mono_mb_emit_ldloc (mb, aklass);
10150 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10152 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10153 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10154 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10156 mono_mb_emit_byte (mb, CEE_RET);
10158 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10159 ret = mono_mb_create (mb, sig, 4, info);
10166 * mono_marshal_get_gsharedvt_in_wrapper:
10168 * This wrapper handles calls from normal code to gsharedvt code.
10171 mono_marshal_get_gsharedvt_in_wrapper (void)
10173 static MonoMethod* ret = NULL;
10174 MonoMethodSignature *sig;
10175 MonoMethodBuilder *mb;
10181 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10183 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10184 sig->ret = &mono_defaults.void_class->byval_arg;
10186 #ifndef DISABLE_JIT
10188 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10190 mono_mb_emit_byte (mb, CEE_RET);
10192 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10193 ret = mono_mb_create (mb, sig, 4, info);
10200 * mono_marshal_get_gsharedvt_out_wrapper:
10202 * This wrapper handles calls from gsharedvt code to normal code.
10205 mono_marshal_get_gsharedvt_out_wrapper (void)
10207 static MonoMethod* ret = NULL;
10208 MonoMethodSignature *sig;
10209 MonoMethodBuilder *mb;
10215 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10217 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10218 sig->ret = &mono_defaults.void_class->byval_arg;
10220 #ifndef DISABLE_JIT
10222 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10224 mono_mb_emit_byte (mb, CEE_RET);
10226 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10227 ret = mono_mb_create (mb, sig, 4, info);
10236 MonoMethod *method;
10239 /* LOCKING: vars accessed under the marshal lock */
10240 static ArrayElemAddr *elem_addr_cache = NULL;
10241 static int elem_addr_cache_size = 0;
10242 static int elem_addr_cache_next = 0;
10245 * mono_marshal_get_array_address:
10246 * @rank: rank of the array type
10247 * @elem_size: size in bytes of an element of an array.
10249 * Returns a MonoMethod that implements the code to get the address
10250 * of an element in a multi-dimenasional array of @rank dimensions.
10251 * The returned method takes an array as the first argument and then
10252 * @rank indexes for the @rank dimensions.
10253 * If ELEM_SIZE is 0, read the array size from the array object.
10256 mono_marshal_get_array_address (int rank, int elem_size)
10259 MonoMethodBuilder *mb;
10260 MonoMethodSignature *sig;
10263 int i, bounds, ind, realidx;
10264 int branch_pos, *branch_positions;
10268 mono_marshal_lock ();
10269 for (i = 0; i < elem_addr_cache_next; ++i) {
10270 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10271 ret = elem_addr_cache [i].method;
10275 mono_marshal_unlock ();
10279 branch_positions = g_new0 (int, rank);
10281 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10283 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10284 sig->ret = &mono_defaults.int_class->byval_arg;
10285 sig->params [0] = &mono_defaults.object_class->byval_arg;
10286 for (i = 0; i < rank; ++i) {
10287 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10290 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10291 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10294 #ifndef DISABLE_JIT
10295 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10296 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10297 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10299 /* bounds = array->bounds; */
10300 mono_mb_emit_ldarg (mb, 0);
10301 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10302 mono_mb_emit_byte (mb, CEE_LDIND_I);
10303 mono_mb_emit_stloc (mb, bounds);
10305 /* ind is the overall element index, realidx is the partial index in a single dimension */
10306 /* ind = idx0 - bounds [0].lower_bound */
10307 mono_mb_emit_ldarg (mb, 1);
10308 mono_mb_emit_ldloc (mb, bounds);
10309 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10310 mono_mb_emit_byte (mb, CEE_ADD);
10311 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10312 mono_mb_emit_byte (mb, CEE_SUB);
10313 mono_mb_emit_stloc (mb, ind);
10314 /* if (ind >= bounds [0].length) goto exeception; */
10315 mono_mb_emit_ldloc (mb, ind);
10316 mono_mb_emit_ldloc (mb, bounds);
10317 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10318 mono_mb_emit_byte (mb, CEE_ADD);
10319 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10320 /* note that we use unsigned comparison */
10321 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10323 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10324 * We could also decide to ignore the passed elem_size and get it
10325 * from the array object, to reduce the number of methods we generate:
10326 * the additional cost is 3 memory loads and a non-immediate mul.
10328 for (i = 1; i < rank; ++i) {
10329 /* realidx = idxi - bounds [i].lower_bound */
10330 mono_mb_emit_ldarg (mb, 1 + i);
10331 mono_mb_emit_ldloc (mb, bounds);
10332 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10333 mono_mb_emit_byte (mb, CEE_ADD);
10334 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10335 mono_mb_emit_byte (mb, CEE_SUB);
10336 mono_mb_emit_stloc (mb, realidx);
10337 /* if (realidx >= bounds [i].length) goto exeception; */
10338 mono_mb_emit_ldloc (mb, realidx);
10339 mono_mb_emit_ldloc (mb, bounds);
10340 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10341 mono_mb_emit_byte (mb, CEE_ADD);
10342 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10343 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10344 /* ind = ind * bounds [i].length + realidx */
10345 mono_mb_emit_ldloc (mb, ind);
10346 mono_mb_emit_ldloc (mb, bounds);
10347 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10348 mono_mb_emit_byte (mb, CEE_ADD);
10349 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10350 mono_mb_emit_byte (mb, CEE_MUL);
10351 mono_mb_emit_ldloc (mb, realidx);
10352 mono_mb_emit_byte (mb, CEE_ADD);
10353 mono_mb_emit_stloc (mb, ind);
10356 /* return array->vector + ind * element_size */
10357 mono_mb_emit_ldarg (mb, 0);
10358 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10359 mono_mb_emit_ldloc (mb, ind);
10361 mono_mb_emit_icon (mb, elem_size);
10363 /* Load arr->vtable->klass->sizes.element_class */
10364 mono_mb_emit_ldarg (mb, 0);
10365 mono_mb_emit_byte (mb, CEE_CONV_I);
10366 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10367 mono_mb_emit_byte (mb, CEE_ADD);
10368 mono_mb_emit_byte (mb, CEE_LDIND_I);
10369 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10370 mono_mb_emit_byte (mb, CEE_ADD);
10371 mono_mb_emit_byte (mb, CEE_LDIND_I);
10372 /* sizes is an union, so this reads sizes.element_size */
10373 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10374 mono_mb_emit_byte (mb, CEE_ADD);
10375 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10377 mono_mb_emit_byte (mb, CEE_MUL);
10378 mono_mb_emit_byte (mb, CEE_ADD);
10379 mono_mb_emit_byte (mb, CEE_RET);
10381 /* patch the branches to get here and throw */
10382 for (i = 1; i < rank; ++i) {
10383 mono_mb_patch_branch (mb, branch_positions [i]);
10385 mono_mb_patch_branch (mb, branch_pos);
10386 /* throw exception */
10387 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10389 g_free (branch_positions);
10390 #endif /* DISABLE_JIT */
10392 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10393 info->d.element_addr.rank = rank;
10394 info->d.element_addr.elem_size = elem_size;
10395 ret = mono_mb_create (mb, sig, 4, info);
10398 /* cache the result */
10400 mono_marshal_lock ();
10401 for (i = 0; i < elem_addr_cache_next; ++i) {
10402 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10403 /* FIXME: free ret */
10404 ret = elem_addr_cache [i].method;
10410 if (elem_addr_cache_next >= elem_addr_cache_size) {
10411 int new_size = elem_addr_cache_size + 4;
10412 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10413 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10414 g_free (elem_addr_cache);
10415 elem_addr_cache = new_array;
10416 elem_addr_cache_size = new_size;
10418 elem_addr_cache [elem_addr_cache_next].rank = rank;
10419 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10420 elem_addr_cache [elem_addr_cache_next].method = ret;
10421 elem_addr_cache_next ++;
10423 mono_marshal_unlock ();
10428 * mono_marshal_get_array_accessor_wrapper:
10430 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10433 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10435 MonoMethodSignature *sig;
10436 MonoMethodBuilder *mb;
10440 MonoGenericContext *ctx = NULL;
10441 MonoMethod *orig_method = NULL;
10442 MonoGenericContainer *container = NULL;
10446 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10447 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10448 * FIXME: Use generic methods.
10455 g_assert_not_reached ();
10457 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10458 if ((res = mono_marshal_find_in_cache (cache, method)))
10462 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10465 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10467 #ifndef DISABLE_JIT
10468 /* Call the method */
10470 mono_mb_emit_ldarg (mb, 0);
10471 for (i = 0; i < sig->param_count; i++)
10472 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10476 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10477 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10479 mono_mb_emit_managed_call (mb, method, NULL);
10481 mono_mb_emit_byte (mb, CEE_RET);
10484 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10485 info->d.array_accessor.method = method;
10489 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10490 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10492 res = mono_mb_create_and_cache_full (cache, method,
10493 mb, sig, sig->param_count + 16,
10502 mono_marshal_alloc (gulong size, MonoError *error)
10506 mono_error_init (error);
10509 res = CoTaskMemAlloc (size);
10511 res = g_try_malloc ((gulong)size);
10513 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10518 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10520 ves_icall_marshal_alloc (gulong size)
10523 void *ret = mono_marshal_alloc (size, &error);
10524 if (!mono_error_ok (&error)) {
10525 mono_error_set_pending_exception (&error);
10533 mono_marshal_free (gpointer ptr)
10536 CoTaskMemFree (ptr);
10543 mono_marshal_free_array (gpointer *ptr, int size)
10550 for (i = 0; i < size; i++)
10556 mono_marshal_string_to_utf16 (MonoString *s)
10558 return s ? mono_string_chars (s) : NULL;
10561 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10563 mono_marshal_string_to_utf16_copy (MonoString *s)
10569 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10570 if (!mono_error_ok (&error)) {
10571 mono_error_set_pending_exception (&error);
10574 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10575 res [mono_string_length (s)] = 0;
10581 * mono_marshal_set_last_error:
10583 * This function is invoked to set the last error value from a P/Invoke call
10584 * which has SetLastError set.
10587 mono_marshal_set_last_error (void)
10590 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10592 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10597 mono_marshal_set_last_error_windows (int error)
10600 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10605 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10606 gpointer dest, gint32 length)
10611 MONO_CHECK_ARG_NULL (src,);
10612 MONO_CHECK_ARG_NULL (dest,);
10614 if (src->obj.vtable->klass->rank != 1) {
10615 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10618 if (start_index < 0) {
10619 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10623 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10626 if (start_index + length > mono_array_length (src)) {
10627 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10631 element_size = mono_array_element_size (src->obj.vtable->klass);
10633 /* no references should be involved */
10634 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10636 memcpy (dest, source_addr, length * element_size);
10640 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10641 MonoArray *dest, gint32 length)
10646 MONO_CHECK_ARG_NULL (src,);
10647 MONO_CHECK_ARG_NULL (dest,);
10649 if (dest->obj.vtable->klass->rank != 1) {
10650 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10653 if (start_index < 0) {
10654 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10658 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10661 if (start_index + length > mono_array_length (dest)) {
10662 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10665 element_size = mono_array_element_size (dest->obj.vtable->klass);
10667 /* no references should be involved */
10668 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10670 memcpy (dest_addr, src, length * element_size);
10674 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10679 return mono_string_new (mono_domain_get (), ptr);
10683 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10686 MonoString *result = NULL;
10687 mono_error_init (&error);
10689 mono_error_set_argument_null (&error, "ptr", "");
10691 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10692 mono_error_set_pending_exception (&error);
10697 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10700 MonoString *res = NULL;
10701 MonoDomain *domain = mono_domain_get ();
10711 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10712 if (!mono_error_ok (&error)) {
10713 mono_error_set_pending_exception (&error);
10720 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10723 MonoString *res = NULL;
10724 MonoDomain *domain = mono_domain_get ();
10726 mono_error_init (&error);
10730 mono_error_set_argument_null (&error, "ptr", "");
10732 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10735 if (!mono_error_ok (&error))
10736 mono_error_set_pending_exception (&error);
10741 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10743 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10747 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10753 MONO_CHECK_ARG_NULL (rtype, 0);
10755 type = rtype->type;
10756 klass = mono_class_from_mono_type (type);
10757 if (!mono_class_init (klass)) {
10758 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10762 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10764 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10765 return sizeof (gpointer);
10766 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10768 MonoException *exc;
10770 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10771 exc = mono_get_exception_argument ("t", msg);
10773 mono_set_pending_exception (exc);
10777 return mono_class_native_size (klass, NULL);
10781 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10784 MonoMethod *method;
10787 MONO_CHECK_ARG_NULL (obj,);
10788 MONO_CHECK_ARG_NULL (dst,);
10790 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10794 pa [2] = &delete_old;
10796 mono_runtime_invoke_checked (method, NULL, pa, &error);
10797 if (!mono_error_ok (&error))
10798 mono_error_set_pending_exception (&error);
10802 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10804 MonoMethod *method;
10807 mono_error_init (error);
10809 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10814 mono_runtime_invoke_checked (method, NULL, pa, error);
10818 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10823 MONO_CHECK_ARG_NULL (src,);
10824 MONO_CHECK_ARG_NULL (dst,);
10826 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10828 if (t->type == MONO_TYPE_VALUETYPE) {
10829 MonoException *exc;
10832 tmp = g_strdup_printf ("Destination is a boxed value type.");
10833 exc = mono_get_exception_argument ("dst", tmp);
10836 mono_set_pending_exception (exc);
10840 ptr_to_structure (src, dst, &error);
10841 if (!mono_error_ok (&error))
10842 mono_error_set_pending_exception (&error);
10846 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10850 MonoDomain *domain = mono_domain_get ();
10855 MONO_CHECK_ARG_NULL (type, NULL);
10857 klass = mono_class_from_mono_type (type->type);
10858 if (!mono_class_init (klass)) {
10859 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10863 res = mono_object_new_checked (domain, klass, &error);
10864 if (!mono_error_ok (&error)) {
10865 mono_error_set_pending_exception (&error);
10869 ptr_to_structure (src, res, &error);
10870 if (!mono_error_ok (&error)) {
10871 mono_error_set_pending_exception (&error);
10879 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10882 MonoMarshalType *info;
10885 int match_index = -1;
10887 MONO_CHECK_ARG_NULL (type, 0);
10888 MONO_CHECK_ARG_NULL (field_name, 0);
10890 fname = mono_string_to_utf8_checked (field_name, &error);
10891 if (mono_error_set_pending_exception (&error))
10893 klass = mono_class_from_mono_type (type->type);
10894 if (!mono_class_init (klass)) {
10895 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10899 while (klass && match_index == -1) {
10900 MonoClassField* field;
10902 gpointer iter = NULL;
10903 while ((field = mono_class_get_fields (klass, &iter))) {
10904 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10906 if (!strcmp (fname, mono_field_get_name (field))) {
10913 if (match_index == -1)
10914 klass = klass->parent;
10919 if(match_index == -1) {
10920 MonoException* exc;
10923 /* Get back original class instance */
10924 klass = mono_class_from_mono_type (type->type);
10926 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10927 exc = mono_get_exception_argument ("fieldName", tmp);
10930 mono_set_pending_exception ((MonoException*)exc);
10934 info = mono_marshal_load_type_info (klass);
10935 return info->fields [match_index].offset;
10939 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10945 tres = mono_string_to_utf8_checked (string, &error);
10946 if (mono_error_set_pending_exception (&error))
10952 * mono_string_to_utf8_checked() returns a memory area at least as large as the size of the
10953 * MonoString, even if it contains NULL characters. The copy we allocate here has to be equally
10956 len = MAX (strlen (tres) + 1, string->length);
10957 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10958 memcpy (ret, tres, len);
10963 char *ret = mono_string_to_utf8_checked (string, &error);
10964 mono_error_set_pending_exception (&error);
10970 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10972 if (string == NULL)
10975 #ifdef TARGET_WIN32
10976 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10977 ((mono_string_length (string) + 1) * 2);
10979 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10981 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10982 res [mono_string_length (string)] = 0;
10988 mono_struct_delete_old (MonoClass *klass, char *ptr)
10990 MonoMarshalType *info;
10993 info = mono_marshal_load_type_info (klass);
10995 for (i = 0; i < info->num_fields; i++) {
10996 MonoMarshalConv conv;
10997 MonoType *ftype = info->fields [i].field->type;
11000 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11003 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11004 klass->unicode, &conv);
11006 cpos = ptr + info->fields [i].offset;
11009 case MONO_MARSHAL_CONV_NONE:
11010 if (MONO_TYPE_ISSTRUCT (ftype)) {
11011 mono_struct_delete_old (ftype->data.klass, cpos);
11015 case MONO_MARSHAL_CONV_STR_LPWSTR:
11016 /* We assume this field points inside a MonoString */
11018 case MONO_MARSHAL_CONV_STR_LPTSTR:
11019 #ifdef TARGET_WIN32
11020 /* We assume this field points inside a MonoString
11024 case MONO_MARSHAL_CONV_STR_LPSTR:
11025 case MONO_MARSHAL_CONV_STR_BSTR:
11026 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11027 case MONO_MARSHAL_CONV_STR_TBSTR:
11028 mono_marshal_free (*(gpointer *)cpos);
11038 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11042 MONO_CHECK_ARG_NULL (src,);
11043 MONO_CHECK_ARG_NULL (type,);
11045 klass = mono_class_from_mono_type (type->type);
11046 if (!mono_class_init (klass)) {
11047 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11051 mono_struct_delete_old (klass, (char *)src);
11055 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11058 size_t s = (size_t)size;
11061 /* This returns a valid pointer for size 0 on MS.NET */
11065 res = GlobalAlloc (GMEM_FIXED, s);
11067 res = g_try_malloc (s);
11070 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11078 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11081 size_t s = (size_t)size;
11084 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11089 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
11091 res = g_try_realloc (ptr, s);
11094 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11102 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11112 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11117 res = CoTaskMemAlloc (size);
11119 if ((gulong)size == 0)
11120 /* This returns a valid pointer for size 0 on MS.NET */
11123 res = g_try_malloc ((gulong)size);
11126 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11133 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11136 CoTaskMemFree (ptr);
11143 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11148 res = CoTaskMemRealloc (ptr, size);
11150 res = g_try_realloc (ptr, (gulong)size);
11153 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11160 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11162 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11166 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11168 MonoClass *klass = mono_type_get_class (type->type);
11169 if (!mono_class_init (klass)) {
11170 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11174 return mono_ftnptr_to_delegate (klass, ftn);
11178 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11180 return mono_delegate_to_ftnptr (delegate);
11184 * mono_marshal_is_loading_type_info:
11186 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11190 mono_marshal_is_loading_type_info (MonoClass *klass)
11192 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11194 return g_slist_find (loads_list, klass) != NULL;
11198 * mono_marshal_load_type_info:
11200 * Initialize klass->marshal_info using information from metadata. This function can
11201 * recursively call itself, and the caller is responsible to avoid that by calling
11202 * mono_marshal_is_loading_type_info () beforehand.
11204 * LOCKING: Acquires the loader lock.
11207 mono_marshal_load_type_info (MonoClass* klass)
11210 guint32 native_size = 0, min_align = 1, packing;
11211 MonoMarshalType *info;
11212 MonoClassField* field;
11215 GSList *loads_list;
11217 g_assert (klass != NULL);
11219 if (klass->marshal_info)
11220 return klass->marshal_info;
11222 if (!klass->inited)
11223 mono_class_init (klass);
11225 if (klass->marshal_info)
11226 return klass->marshal_info;
11229 * This function can recursively call itself, so we keep the list of classes which are
11230 * under initialization in a TLS list.
11232 g_assert (!mono_marshal_is_loading_type_info (klass));
11233 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11234 loads_list = g_slist_prepend (loads_list, klass);
11235 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11238 while ((field = mono_class_get_fields (klass, &iter))) {
11239 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11241 if (mono_field_is_deleted (field))
11246 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11248 /* The mempool is protected by the loader lock */
11249 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11250 info->num_fields = count;
11252 /* Try to find a size for this type in metadata */
11253 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11255 if (klass->parent) {
11256 int parent_size = mono_class_native_size (klass->parent, NULL);
11258 /* Add parent size to real size */
11259 native_size += parent_size;
11260 info->native_size = parent_size;
11263 packing = klass->packing_size ? klass->packing_size : 8;
11266 while ((field = mono_class_get_fields (klass, &iter))) {
11270 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11273 if (mono_field_is_deleted (field))
11275 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11276 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11277 NULL, NULL, &info->fields [j].mspec);
11279 info->fields [j].field = field;
11281 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11282 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11283 /* This field is a hack inserted by MCS to empty structures */
11288 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11289 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11290 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11291 &align, TRUE, klass->unicode);
11292 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11293 min_align = MAX (align, min_align);
11294 info->fields [j].offset = info->native_size;
11295 info->fields [j].offset += align - 1;
11296 info->fields [j].offset &= ~(align - 1);
11297 info->native_size = info->fields [j].offset + size;
11299 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11300 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11301 &align, TRUE, klass->unicode);
11302 min_align = MAX (align, min_align);
11303 info->fields [j].offset = field->offset - sizeof (MonoObject);
11304 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11310 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11311 info->native_size = MAX (native_size, info->native_size);
11313 * If the provided Size is equal or larger than the calculated size, and there
11314 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11316 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11317 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11320 min_align = MIN (min_align, packing);
11324 if (info->native_size & (min_align - 1)) {
11325 info->native_size += min_align - 1;
11326 info->native_size &= ~(min_align - 1);
11329 info->min_align = min_align;
11331 /* Update the class's blittable info, if the layouts don't match */
11332 if (info->native_size != mono_class_value_size (klass, NULL))
11333 klass->blittable = FALSE;
11335 /* If this is an array type, ensure that we have element info */
11336 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11337 mono_marshal_load_type_info (klass->element_class);
11340 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11341 loads_list = g_slist_remove (loads_list, klass);
11342 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11344 mono_marshal_lock ();
11345 if (!klass->marshal_info) {
11346 /*We do double-checking locking on marshal_info */
11347 mono_memory_barrier ();
11348 klass->marshal_info = info;
11350 mono_marshal_unlock ();
11352 return klass->marshal_info;
11356 * mono_class_native_size:
11359 * Returns: the native size of an object instance (when marshaled
11360 * to unmanaged code)
11363 mono_class_native_size (MonoClass *klass, guint32 *align)
11365 if (!klass->marshal_info) {
11366 if (mono_marshal_is_loading_type_info (klass)) {
11371 mono_marshal_load_type_info (klass);
11376 *align = klass->marshal_info->min_align;
11378 return klass->marshal_info->native_size;
11382 * mono_type_native_stack_size:
11383 * @t: the type to return the size it uses on the stack
11385 * Returns: the number of bytes required to hold an instance of this
11386 * type on the native stack
11389 mono_type_native_stack_size (MonoType *t, guint32 *align)
11393 g_assert (t != NULL);
11399 *align = sizeof (gpointer);
11400 return sizeof (gpointer);
11404 case MONO_TYPE_BOOLEAN:
11405 case MONO_TYPE_CHAR:
11416 case MONO_TYPE_STRING:
11417 case MONO_TYPE_OBJECT:
11418 case MONO_TYPE_CLASS:
11419 case MONO_TYPE_SZARRAY:
11420 case MONO_TYPE_PTR:
11421 case MONO_TYPE_FNPTR:
11422 case MONO_TYPE_ARRAY:
11423 *align = sizeof (gpointer);
11424 return sizeof (gpointer);
11429 *align = MONO_ABI_ALIGNOF (double);
11433 *align = MONO_ABI_ALIGNOF (gint64);
11435 case MONO_TYPE_GENERICINST:
11436 if (!mono_type_generic_inst_is_valuetype (t)) {
11437 *align = sizeof (gpointer);
11438 return sizeof (gpointer);
11441 case MONO_TYPE_TYPEDBYREF:
11442 case MONO_TYPE_VALUETYPE: {
11444 MonoClass *klass = mono_class_from_mono_type (t);
11446 if (klass->enumtype)
11447 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11449 size = mono_class_native_size (klass, align);
11450 *align = *align + 3;
11460 g_error ("type 0x%02x unknown", t->type);
11466 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11467 gboolean as_field, gboolean unicode)
11469 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11472 switch (native_type) {
11473 case MONO_NATIVE_BOOLEAN:
11476 case MONO_NATIVE_I1:
11477 case MONO_NATIVE_U1:
11480 case MONO_NATIVE_I2:
11481 case MONO_NATIVE_U2:
11482 case MONO_NATIVE_VARIANTBOOL:
11485 case MONO_NATIVE_I4:
11486 case MONO_NATIVE_U4:
11487 case MONO_NATIVE_ERROR:
11490 case MONO_NATIVE_I8:
11491 case MONO_NATIVE_U8:
11492 *align = MONO_ABI_ALIGNOF (gint64);
11494 case MONO_NATIVE_R4:
11497 case MONO_NATIVE_R8:
11498 *align = MONO_ABI_ALIGNOF (double);
11500 case MONO_NATIVE_INT:
11501 case MONO_NATIVE_UINT:
11502 case MONO_NATIVE_LPSTR:
11503 case MONO_NATIVE_LPWSTR:
11504 case MONO_NATIVE_LPTSTR:
11505 case MONO_NATIVE_BSTR:
11506 case MONO_NATIVE_ANSIBSTR:
11507 case MONO_NATIVE_TBSTR:
11508 case MONO_NATIVE_LPARRAY:
11509 case MONO_NATIVE_SAFEARRAY:
11510 case MONO_NATIVE_IUNKNOWN:
11511 case MONO_NATIVE_IDISPATCH:
11512 case MONO_NATIVE_INTERFACE:
11513 case MONO_NATIVE_ASANY:
11514 case MONO_NATIVE_FUNC:
11515 case MONO_NATIVE_LPSTRUCT:
11516 *align = MONO_ABI_ALIGNOF (gpointer);
11517 return sizeof (gpointer);
11518 case MONO_NATIVE_STRUCT:
11519 klass = mono_class_from_mono_type (type);
11520 if (klass == mono_defaults.object_class &&
11521 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11525 return mono_class_native_size (klass, align);
11526 case MONO_NATIVE_BYVALTSTR: {
11527 int esize = unicode ? 2: 1;
11530 return mspec->data.array_data.num_elem * esize;
11532 case MONO_NATIVE_BYVALARRAY: {
11533 // FIXME: Have to consider ArraySubType
11535 klass = mono_class_from_mono_type (type);
11536 if (klass->element_class == mono_defaults.char_class) {
11537 esize = unicode ? 2 : 1;
11540 esize = mono_class_native_size (klass->element_class, align);
11543 return mspec->data.array_data.num_elem * esize;
11545 case MONO_NATIVE_CUSTOM:
11546 *align = sizeof (gpointer);
11547 return sizeof (gpointer);
11549 case MONO_NATIVE_CURRENCY:
11550 case MONO_NATIVE_VBBYREFSTR:
11552 g_error ("native type %02x not implemented", native_type);
11555 g_assert_not_reached ();
11559 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11561 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11570 t = &o->vtable->klass->byval_arg;
11574 case MONO_TYPE_PTR:
11577 case MONO_TYPE_BOOLEAN:
11580 case MONO_TYPE_CHAR:
11585 return mono_object_unbox (o);
11587 case MONO_TYPE_STRING:
11588 switch (string_encoding) {
11589 case MONO_NATIVE_LPWSTR:
11590 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11592 case MONO_NATIVE_LPSTR:
11593 return mono_string_to_lpstr ((MonoString*)o);
11596 g_warning ("marshaling conversion %d not implemented", string_encoding);
11597 g_assert_not_reached ();
11600 case MONO_TYPE_CLASS:
11601 case MONO_TYPE_VALUETYPE: {
11602 MonoMethod *method;
11605 MonoBoolean delete_old = FALSE;
11607 klass = t->data.klass;
11609 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11612 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11613 klass->blittable || klass->enumtype))
11614 return mono_object_unbox (o);
11616 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11617 if (!mono_error_ok (&error)) {
11618 mono_error_set_pending_exception (&error);
11622 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11623 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11627 pa [2] = &delete_old;
11629 mono_runtime_invoke_checked (method, NULL, pa, &error);
11630 if (!mono_error_ok (&error)) {
11631 mono_error_set_pending_exception (&error);
11641 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11645 /* This is a JIT icall, it sets the pending exception */
11647 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11656 t = &o->vtable->klass->byval_arg;
11658 case MONO_TYPE_STRING:
11659 switch (string_encoding) {
11660 case MONO_NATIVE_LPWSTR:
11661 case MONO_NATIVE_LPSTR:
11662 mono_marshal_free (ptr);
11665 g_warning ("marshaling conversion %d not implemented", string_encoding);
11666 g_assert_not_reached ();
11669 case MONO_TYPE_CLASS:
11670 case MONO_TYPE_VALUETYPE: {
11671 klass = t->data.klass;
11673 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11674 klass->blittable || klass->enumtype))
11677 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11678 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11684 mono_runtime_invoke_checked (method, NULL, pa, &error);
11685 if (!mono_error_ok (&error)) {
11686 mono_error_set_pending_exception (&error);
11691 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11692 mono_struct_delete_old (klass, (char *)ptr);
11695 mono_marshal_free (ptr);
11704 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11706 MonoMethodSignature *sig, *csig;
11707 MonoMethodBuilder *mb;
11712 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11713 mb->method->slot = -1;
11715 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11716 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11718 sig = mono_method_signature (method);
11719 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11720 csig->generic_param_count = 0;
11722 #ifndef DISABLE_JIT
11723 mono_mb_emit_ldarg (mb, 0);
11724 for (i = 0; i < csig->param_count; i++)
11725 mono_mb_emit_ldarg (mb, i + 1);
11726 mono_mb_emit_managed_call (mb, method, NULL);
11727 mono_mb_emit_byte (mb, CEE_RET);
11729 /* We can corlib internal methods */
11730 mb->skip_visibility = TRUE;
11732 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11733 info->d.generic_array_helper.method = method;
11734 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11742 * The mono_win32_compat_* functions are implementations of inline
11743 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11744 * although not exported by kernel32.
11746 * We map the appropiate kernel32 entries to these functions using
11747 * dllmaps declared in the global etc/mono/config.
11751 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11753 if (!dest || !source)
11756 memcpy (dest, source, length);
11760 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11762 memset (dest, fill, length);
11766 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11768 if (!dest || !source)
11771 memmove (dest, source, length);
11775 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11777 memset (dest, 0, length);
11781 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11786 for (i = 0; i < len; ++i)
11790 g_assert (i < len);
11793 while (byte && !(byte & 1))
11795 g_assert (byte == 1);
11798 *bitmask = buf [i];
11802 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11804 MonoMethodBuilder *mb;
11805 MonoMethodSignature *sig, *csig;
11806 MonoExceptionClause *clause;
11811 int i, param_count, sig_size, pos_leave;
11815 // FIXME: we need to store the exception into a MonoHandle
11816 g_assert (!mono_threads_is_coop_enabled ());
11818 klass = method->klass;
11819 image = method->klass->image;
11821 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11823 if ((res = mono_marshal_find_in_cache (cache, method)))
11826 sig = mono_method_signature (method);
11827 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11829 /* add "this" and exception param */
11830 param_count = sig->param_count + sig->hasthis + 1;
11832 /* dup & extend signature */
11833 csig = mono_metadata_signature_alloc (image, param_count);
11834 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11835 memcpy (csig, sig, sig_size);
11836 csig->param_count = param_count;
11839 csig->call_convention = MONO_CALL_DEFAULT;
11841 if (sig->hasthis) {
11843 csig->params [0] = &klass->byval_arg;
11844 /* move params up by one */
11845 for (i = 0; i < sig->param_count; i++)
11846 csig->params [i + 1] = sig->params [i];
11849 /* setup exception param as byref+[out] */
11850 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11851 &mono_defaults.exception_class->byval_arg);
11852 csig->params [param_count - 1]->byref = 1;
11853 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11855 /* convert struct return to object */
11856 if (MONO_TYPE_ISSTRUCT (sig->ret))
11857 csig->ret = &mono_defaults.object_class->byval_arg;
11859 #ifndef DISABLE_JIT
11860 /* local 0 (temp for exception object) */
11861 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11863 /* local 1 (temp for result) */
11864 if (!MONO_TYPE_IS_VOID (sig->ret))
11865 mono_mb_add_local (mb, sig->ret);
11867 /* clear exception arg */
11868 mono_mb_emit_ldarg (mb, param_count - 1);
11869 mono_mb_emit_byte (mb, CEE_LDNULL);
11870 mono_mb_emit_byte (mb, CEE_STIND_REF);
11873 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11874 clause->try_offset = mono_mb_get_label (mb);
11876 /* push method's args */
11877 for (i = 0; i < param_count - 1; i++) {
11881 mono_mb_emit_ldarg (mb, i);
11883 /* get the byval type of the param */
11884 klass = mono_class_from_mono_type (csig->params [i]);
11885 type = &klass->byval_arg;
11887 /* unbox struct args */
11888 if (MONO_TYPE_ISSTRUCT (type)) {
11889 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11891 /* byref args & and the "this" arg must remain a ptr.
11892 Otherwise make a copy of the value type */
11893 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11894 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11896 csig->params [i] = &mono_defaults.object_class->byval_arg;
11901 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11902 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11904 mono_mb_emit_op (mb, CEE_CALL, method);
11906 /* save result at local 1 */
11907 if (!MONO_TYPE_IS_VOID (sig->ret))
11908 mono_mb_emit_stloc (mb, 1);
11910 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11913 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11914 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11915 clause->data.catch_class = mono_defaults.object_class;
11917 clause->handler_offset = mono_mb_get_label (mb);
11919 /* store exception at local 0 */
11920 mono_mb_emit_stloc (mb, 0);
11921 mono_mb_emit_ldarg (mb, param_count - 1);
11922 mono_mb_emit_ldloc (mb, 0);
11923 mono_mb_emit_byte (mb, CEE_STIND_REF);
11924 mono_mb_emit_branch (mb, CEE_LEAVE);
11926 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11928 mono_mb_set_clauses (mb, 1, clause);
11930 mono_mb_patch_branch (mb, pos_leave);
11933 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11934 mono_mb_emit_ldloc (mb, 1);
11936 /* box the return value */
11937 if (MONO_TYPE_ISSTRUCT (sig->ret))
11938 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11941 mono_mb_emit_byte (mb, CEE_RET);
11944 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11951 * mono_marshal_free_dynamic_wrappers:
11953 * Free wrappers of the dynamic method METHOD.
11956 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11958 MonoImage *image = method->klass->image;
11960 g_assert (method_is_dynamic (method));
11962 /* This could be called during shutdown */
11963 if (marshal_mutex_initialized)
11964 mono_marshal_lock ();
11966 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11967 * they could be shared with other methods ?
11969 if (image->wrapper_caches.runtime_invoke_direct_cache)
11970 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11971 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11972 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11973 // FIXME: Need to clear the caches in other images as well
11974 if (image->delegate_bound_static_invoke_cache)
11975 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11977 if (marshal_mutex_initialized)
11978 mono_marshal_unlock ();
11982 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11984 g_assert (ftnptr_eh_callback);
11985 ftnptr_eh_callback (gchandle);
11989 ftnptr_eh_callback_default (guint32 gchandle)
11991 MonoException *exc;
11992 gpointer stackdata;
11994 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
11996 exc = (MonoException*) mono_gchandle_get_target (gchandle);
11998 mono_gchandle_free (gchandle);
12000 mono_raise_exception (exc);
12004 * mono_install_ftnptr_eh_callback:
12006 * Install a callback that should be called when there is a managed exception
12007 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12008 * managed exception to a native exception, to properly unwind the native
12009 * stack; this native exception will then be converted back to a managed
12010 * exception in their managed-to-native wrapper.
12013 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12015 ftnptr_eh_callback = callback;
12018 static MonoThreadInfo*
12019 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12021 MonoThreadInfo *info = mono_thread_info_current ();
12023 mono_stack_mark_init (info, stackmark);
12024 mono_error_init (error);
12029 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12031 mono_stack_mark_pop (info, stackmark);
12032 mono_error_set_pending_exception (error);