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/marshal-internals.h"
24 #include "metadata/method-builder.h"
25 #include "metadata/tabledefs.h"
26 #include "metadata/exception.h"
27 #include "metadata/appdomain.h"
28 #include "mono/metadata/abi-details.h"
29 #include "mono/metadata/debug-helpers.h"
30 #include "mono/metadata/threads.h"
31 #include "mono/metadata/monitor.h"
32 #include "mono/metadata/class-internals.h"
33 #include "mono/metadata/metadata-internals.h"
34 #include "mono/metadata/domain-internals.h"
35 #include "mono/metadata/gc-internals.h"
36 #include "mono/metadata/threads-types.h"
37 #include "mono/metadata/string-icalls.h"
38 #include "mono/metadata/attrdefs.h"
39 #include "mono/metadata/gc-internals.h"
40 #include "mono/metadata/cominterop.h"
41 #include "mono/metadata/remoting.h"
42 #include "mono/metadata/reflection-internals.h"
43 #include "mono/metadata/threadpool-ms.h"
44 #include "mono/metadata/handle.h"
45 #include "mono/utils/mono-counters.h"
46 #include "mono/utils/mono-tls.h"
47 #include "mono/utils/mono-memory-model.h"
48 #include "mono/utils/atomic.h"
49 #include <mono/utils/mono-threads.h>
50 #include <mono/utils/mono-threads-coop.h>
51 #include <mono/utils/mono-error-internals.h>
56 /* #define DEBUG_RUNTIME_CODE */
58 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
62 #include "mono/cil/opcode.def"
68 * This mutex protects the various marshalling related caches in MonoImage
69 * and a few other data structures static to this file.
71 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
72 * runtime locking latice. Which means it can take simple locks suck as the image lock.
74 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
75 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
76 static mono_mutex_t marshal_mutex;
77 static gboolean marshal_mutex_initialized;
79 static MonoNativeTlsKey last_error_tls_id;
81 static MonoNativeTlsKey load_type_info_tls_id;
83 static gboolean use_aot_wrappers;
85 static int class_marshal_info_count;
87 static void ftnptr_eh_callback_default (guint32 gchandle);
89 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
92 delegate_hash_table_add (MonoDelegate *d);
95 delegate_hash_table_remove (MonoDelegate *d);
98 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
101 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, int offset_of_first_child_field, MonoMarshalNative string_encoding);
104 mono_struct_delete_old (MonoClass *klass, char *ptr);
107 mono_marshal_string_to_utf16 (MonoString *s);
110 mono_marshal_string_to_utf16_copy (MonoString *s);
114 mono_string_to_utf8str (MonoString *string_obj);
117 static MonoStringBuilder *
118 mono_string_utf8_to_builder2 (char *text);
120 static MonoStringBuilder *
121 mono_string_utf16_to_builder2 (gunichar2 *text);
124 mono_string_new_len_wrapper (const char *text, guint length);
127 mono_string_from_byvalstr (const char *data, int len);
130 mono_string_from_byvalwstr (gunichar2 *data, int len);
133 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
136 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
139 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
142 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
144 static MonoAsyncResult *
145 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
148 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
151 mono_marshal_set_last_error_windows (int error);
154 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
156 static void init_safe_handle (void);
159 ves_icall_marshal_alloc (gulong size);
162 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
165 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
168 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
171 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
174 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
177 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
180 mono_delegate_to_ftnptr (MonoDelegate *delegate);
183 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
186 mono_array_to_savearray (MonoArray *array);
189 mono_array_to_lparray (MonoArray *array);
192 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
195 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
198 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
201 mono_array_to_savearray (MonoArray *array);
204 mono_array_to_lparray (MonoArray *array);
207 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
210 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
212 static MonoThreadInfo*
213 mono_icall_start (HandleStackMark *stackmark, MonoError *error);
216 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error);
218 /* Lazy class loading functions */
219 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
220 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
221 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
222 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
224 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
225 static MonoMethod *sh_dangerous_add_ref;
226 static MonoMethod *sh_dangerous_release;
231 sh_dangerous_add_ref = mono_class_get_method_from_name (
232 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
233 sh_dangerous_release = mono_class_get_method_from_name (
234 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
238 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
240 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
242 mono_register_jit_icall (func, name, sig, no_wrapper);
246 mono_signature_no_pinvoke (MonoMethod *method)
248 MonoMethodSignature *sig = mono_method_signature (method);
250 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
251 sig->pinvoke = FALSE;
258 mono_marshal_init_tls (void)
260 mono_native_tls_alloc (&last_error_tls_id, NULL);
261 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
265 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
268 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
269 mono_error_set_pending_exception (&error);
274 ves_icall_mono_string_from_utf16 (gunichar2 *data)
277 MonoString *result = mono_string_from_utf16_checked (data, &error);
278 mono_error_set_pending_exception (&error);
283 ves_icall_mono_string_to_utf8 (MonoString *str)
286 char *result = mono_string_to_utf8_checked (str, &error);
287 mono_error_set_pending_exception (&error);
292 mono_marshal_init (void)
294 static gboolean module_initialized = FALSE;
296 if (!module_initialized) {
297 module_initialized = TRUE;
298 mono_os_mutex_init_recursive (&marshal_mutex);
299 marshal_mutex_initialized = TRUE;
301 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
302 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
303 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
304 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
305 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
306 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
307 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
308 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
309 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
310 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
311 register_icall (mono_string_to_utf8str, "mono_string_to_utf8str", "ptr obj", FALSE);
312 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
313 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
314 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
315 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
316 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
317 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
318 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
319 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
320 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
321 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
322 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
323 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
324 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
325 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
326 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
327 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
328 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
329 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
330 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
331 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
332 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
333 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
334 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
335 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
336 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
337 register_icall (g_free, "g_free", "void ptr", FALSE);
338 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
339 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
340 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
341 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
342 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
343 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
344 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
345 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
346 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
347 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
348 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
349 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
350 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
351 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
352 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
353 register_icall (mono_icall_start, "mono_icall_start", "ptr ptr ptr", TRUE);
354 register_icall (mono_icall_end, "mono_icall_end", "void ptr ptr ptr", TRUE);
355 register_icall (mono_handle_new, "mono_handle_new", "ptr ptr", TRUE);
357 mono_cominterop_init ();
358 mono_remoting_init ();
360 mono_counters_register ("MonoClass::class_marshal_info_count count",
361 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_marshal_info_count);
367 mono_marshal_cleanup (void)
369 mono_cominterop_cleanup ();
371 mono_native_tls_free (load_type_info_tls_id);
372 mono_native_tls_free (last_error_tls_id);
373 mono_os_mutex_destroy (&marshal_mutex);
374 marshal_mutex_initialized = FALSE;
378 mono_marshal_lock_internal (void)
380 mono_marshal_lock ();
384 mono_marshal_unlock_internal (void)
386 mono_marshal_unlock ();
389 /* This is a JIT icall, it sets the pending exception and return NULL on error */
391 mono_delegate_to_ftnptr (MonoDelegate *delegate)
394 MonoMethod *method, *wrapper;
396 uint32_t target_handle = 0;
401 if (delegate->delegate_trampoline)
402 return delegate->delegate_trampoline;
404 klass = ((MonoObject *)delegate)->vtable->klass;
405 g_assert (klass->delegate);
407 method = delegate->method;
408 if (delegate->method_is_virtual)
409 method = mono_object_get_virtual_method (delegate->target, method);
411 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
412 const char *exc_class, *exc_arg;
415 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
417 g_assert (exc_class);
418 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
424 if (delegate->target) {
425 /* Produce a location which can be embedded in JITted code */
426 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
429 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
431 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
435 // Add the delegate to the delegate hash table
436 delegate_hash_table_add (delegate);
438 /* when the object is collected, collect the dynamic method, too */
439 mono_object_register_finalizer ((MonoObject*)delegate);
441 return delegate->delegate_trampoline;
444 if (target_handle != 0)
445 mono_gchandle_free (target_handle);
446 mono_error_set_pending_exception (&error);
451 * this hash table maps from a delegate trampoline object to a weak reference
452 * of the delegate. As an optimizations with a non-moving GC we store the
453 * object pointer itself, otherwise we use a GC handle.
455 static GHashTable *delegate_hash_table;
458 delegate_hash_table_new (void) {
459 return g_hash_table_new (NULL, NULL);
463 delegate_hash_table_remove (MonoDelegate *d)
465 guint32 gchandle = 0;
467 mono_marshal_lock ();
468 if (delegate_hash_table == NULL)
469 delegate_hash_table = delegate_hash_table_new ();
470 if (mono_gc_is_moving ())
471 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
472 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
473 mono_marshal_unlock ();
474 if (gchandle && mono_gc_is_moving ())
475 mono_gchandle_free (gchandle);
479 delegate_hash_table_add (MonoDelegate *d)
482 guint32 old_gchandle;
484 mono_marshal_lock ();
485 if (delegate_hash_table == NULL)
486 delegate_hash_table = delegate_hash_table_new ();
487 if (mono_gc_is_moving ()) {
488 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
489 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
490 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
492 mono_gchandle_free (old_gchandle);
494 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
496 mono_marshal_unlock ();
500 * mono_marshal_use_aot_wrappers:
502 * Instructs this module to use AOT compatible wrappers.
505 mono_marshal_use_aot_wrappers (gboolean use)
507 use_aot_wrappers = use;
511 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
514 MonoCustomAttrInfo *cinfo;
515 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
517 /* The attribute is only available in Net 2.0 */
518 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
520 * The pinvoke attributes are stored in a real custom attribute so we have to
523 cinfo = mono_custom_attrs_from_class_checked (klass, &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);
528 if (cinfo && !mono_runtime_get_no_exec ()) {
529 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
531 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
533 if (!mono_error_ok (&error)) {
534 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
535 mono_error_cleanup (&error);
539 mono_custom_attrs_free (cinfo);
544 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
546 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
555 mono_marshal_lock ();
556 if (delegate_hash_table == NULL)
557 delegate_hash_table = delegate_hash_table_new ();
559 if (mono_gc_is_moving ()) {
560 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
561 mono_marshal_unlock ();
563 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
567 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
568 mono_marshal_unlock ();
571 /* This is a native function, so construct a delegate for it */
572 MonoMethodSignature *sig;
574 MonoMarshalSpec **mspecs;
575 MonoMethod *invoke = mono_get_delegate_invoke (klass);
576 MonoMethodPInvoke piinfo;
577 MonoObject *this_obj;
580 if (use_aot_wrappers) {
581 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
582 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
583 if (!is_ok (&error)) {
584 mono_error_set_pending_exception (&error);
588 memset (&piinfo, 0, sizeof (piinfo));
589 parse_unmanaged_function_pointer_attr (klass, &piinfo);
591 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
592 mono_method_get_marshal_info (invoke, mspecs);
593 /* Freed below so don't alloc from mempool */
594 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
597 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
600 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
602 mono_metadata_free_marshal_spec (mspecs [i]);
607 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
608 if (!mono_error_ok (&error)) {
609 mono_error_set_pending_exception (&error);
612 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
613 if (mono_error_set_pending_exception (&error))
615 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
616 if (mono_error_set_pending_exception (&error))
620 if (d->object.vtable->domain != mono_domain_get ()) {
621 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
629 mono_delegate_free_ftnptr (MonoDelegate *delegate)
634 delegate_hash_table_remove (delegate);
636 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
638 if (!delegate->target) {
639 /* The wrapper method is shared between delegates -> no need to free it */
648 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
651 method = mono_jit_info_get_method (ji);
652 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
654 /*the target gchandle is the first entry after size and the wrapper itself.*/
655 gchandle = GPOINTER_TO_UINT (method_data [2]);
658 mono_gchandle_free (gchandle);
660 mono_runtime_free_method (mono_object_domain (delegate), method);
664 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
666 mono_string_from_byvalstr (const char *data, int max_len)
669 MonoDomain *domain = mono_domain_get ();
675 while (len < max_len - 1 && data [len])
678 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
679 mono_error_set_pending_exception (&error);
683 /* This is a JIT icall, it sets the pending exception and return NULL on error */
685 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
688 MonoString *res = NULL;
689 MonoDomain *domain = mono_domain_get ();
695 while (data [len]) len++;
697 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
698 if (!mono_error_ok (&error)) {
699 mono_error_set_pending_exception (&error);
706 mono_array_to_savearray (MonoArray *array)
711 g_assert_not_reached ();
716 mono_array_to_lparray (MonoArray *array)
719 gpointer *nativeArray = NULL;
720 int nativeArraySize = 0;
730 klass = array->obj.vtable->klass;
732 switch (klass->element_class->byval_arg.type) {
734 g_assert_not_reached ();
736 case MONO_TYPE_CLASS:
737 nativeArraySize = array->max_length;
738 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
739 for(i = 0; i < nativeArraySize; ++i)
740 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
743 case MONO_TYPE_BOOLEAN:
756 case MONO_TYPE_VALUETYPE:
760 case MONO_TYPE_GENERICINST:
761 case MONO_TYPE_OBJECT:
762 case MONO_TYPE_ARRAY:
763 case MONO_TYPE_SZARRAY:
764 case MONO_TYPE_STRING:
766 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
767 g_assert_not_reached ();
770 return array->vector;
774 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
785 klass = array->obj.vtable->klass;
787 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
788 for(i = 0; i < array->max_length; ++i)
789 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
790 g_free (nativeArray);
796 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
798 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
800 if (elclass == mono_defaults.byte_class) {
801 GError *error = NULL;
805 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
808 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
812 g_error_free (error);
815 g_assert_not_reached ();
819 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
821 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
824 /* This is a JIT icall, it sets the pending exception and returns on error */
826 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
828 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
830 if (elclass == mono_defaults.byte_class) {
832 GError *error = NULL;
834 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
836 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
837 g_error_free (error);
841 memcpy (native_arr, as, MIN (strlen (as), elnum));
844 g_assert_not_reached ();
849 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
851 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
854 static MonoStringBuilder *
855 mono_string_builder_new (int starting_string_length)
857 static MonoClass *string_builder_class;
858 static MonoMethod *sb_ctor;
859 static void *args [1];
862 int initial_len = starting_string_length;
868 MonoMethodDesc *desc;
871 string_builder_class = mono_class_get_string_builder_class ();
872 g_assert (string_builder_class);
873 desc = mono_method_desc_new (":.ctor(int)", FALSE);
874 m = mono_method_desc_search_in_class (desc, string_builder_class);
876 mono_method_desc_free (desc);
877 mono_memory_barrier ();
881 // We make a new array in the _to_builder function, so this
882 // array will always be garbage collected.
883 args [0] = &initial_len;
885 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
886 mono_error_assert_ok (&error);
889 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
890 g_assert (exc == NULL);
891 mono_error_assert_ok (&error);
893 g_assert (sb->chunkChars->max_length >= initial_len);
899 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
901 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
902 gunichar2 *charSrc = (gunichar2 *)text;
903 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
905 sb->chunkLength = string_len;
911 mono_string_utf16_to_builder2 (gunichar2 *text)
917 for (len = 0; text [len] != 0; ++len);
919 MonoStringBuilder *sb = mono_string_builder_new (len);
920 mono_string_utf16_to_builder (sb, text);
926 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
931 GError *error = NULL;
933 gunichar2* ut = g_utf8_to_utf16 (text, strlen (text), NULL, &copied, &error);
934 int capacity = mono_string_builder_capacity (sb);
936 if (copied > capacity)
940 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
941 mono_string_utf16_to_builder_copy (sb, ut, copied);
943 g_error_free (error);
949 mono_string_utf8_to_builder2 (char *text)
954 int len = strlen (text);
955 MonoStringBuilder *sb = mono_string_builder_new (len);
956 mono_string_utf8_to_builder (sb, text);
962 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
968 for (len = 0; text [len] != 0; ++len);
970 if (len > mono_string_builder_capacity (sb))
971 len = mono_string_builder_capacity (sb);
973 mono_string_utf16_to_builder_copy (sb, text, len);
977 * mono_string_builder_to_utf8:
978 * @sb: the string builder
980 * Converts to utf8 the contents of the MonoStringBuilder.
982 * Returns: a utf8 string with the contents of the StringBuilder.
984 * The return value must be released with mono_marshal_free.
986 * This is a JIT icall, it sets the pending exception and returns NULL on error.
989 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
992 GError *gerror = NULL;
997 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
999 guint str_len = mono_string_builder_string_length (sb);
1001 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
1004 g_error_free (gerror);
1005 mono_marshal_free (str_utf16);
1006 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1009 guint len = mono_string_builder_capacity (sb) + 1;
1010 gchar *res = (gchar *)mono_marshal_alloc (MAX (byte_count+1, len * sizeof (gchar)), &error);
1011 if (!mono_error_ok (&error)) {
1012 mono_marshal_free (str_utf16);
1014 mono_error_set_pending_exception (&error);
1018 memcpy (res, tmp, byte_count);
1019 res[byte_count] = '\0';
1021 mono_marshal_free (str_utf16);
1028 * mono_string_builder_to_utf16:
1029 * @sb: the string builder
1031 * Converts to utf16 the contents of the MonoStringBuilder.
1033 * Returns: a utf16 string with the contents of the StringBuilder.
1035 * The return value must be released with mono_marshal_free.
1037 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1040 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1047 g_assert (sb->chunkChars);
1049 guint len = mono_string_builder_capacity (sb);
1054 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1055 if (!mono_error_ok (&error)) {
1056 mono_error_set_pending_exception (&error);
1065 MonoStringBuilder* chunk = sb;
1067 if (chunk->chunkLength > 0) {
1068 // Check that we will not overrun our boundaries.
1069 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1071 if (chunk->chunkLength <= len) {
1072 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1074 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1077 len -= chunk->chunkLength;
1079 chunk = chunk->chunkPrevious;
1080 } while (chunk != NULL);
1086 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1088 mono_string_to_utf8str (MonoString *s)
1091 char *result = mono_string_to_utf8_checked (s, &error);
1092 mono_error_set_pending_exception (&error);
1098 mono_string_to_ansibstr (MonoString *string_obj)
1100 g_error ("UnmanagedMarshal.BStr is not implemented.");
1105 * mono_string_to_byvalstr:
1106 * @dst: Where to store the null-terminated utf8 decoded string.
1107 * @src: the MonoString to copy.
1108 * @size: the maximum number of bytes to copy.
1110 * Copies the MonoString pointed to by @src as a utf8 string
1111 * into @dst, it copies at most @size bytes into the destination.
1114 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1120 g_assert (dst != NULL);
1121 g_assert (size > 0);
1123 memset (dst, 0, size);
1127 s = mono_string_to_utf8_checked (src, &error);
1128 if (mono_error_set_pending_exception (&error))
1130 len = MIN (size, strlen (s));
1133 memcpy (dst, s, len);
1138 * mono_string_to_byvalwstr:
1139 * @dst: Where to store the null-terminated utf16 decoded string.
1140 * @src: the MonoString to copy.
1141 * @size: the maximum number of wide characters to copy (each consumes 2 bytes)
1143 * Copies the MonoString pointed to by @src as a utf16 string into
1144 * @dst, it copies at most @size bytes into the destination (including
1145 * a terminating 16-bit zero terminator).
1148 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1152 g_assert (dst != NULL);
1153 g_assert (size > 1);
1156 memset (dst, 0, size * 2);
1160 len = MIN (size, (mono_string_length (src)));
1161 memcpy (dst, mono_string_chars (src), size * 2);
1162 if (size <= mono_string_length (src))
1164 *((gunichar2 *) dst + len) = 0;
1167 /* this is an icall, it sets the pending exception and returns NULL on error */
1169 mono_string_new_len_wrapper (const char *text, guint length)
1172 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1173 mono_error_set_pending_exception (&error);
1180 * mono_mb_emit_exception_marshal_directive:
1182 * This function assumes ownership of MSG, which should be malloc-ed.
1185 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1190 s = mono_image_strdup (mb->method->klass->image, msg);
1195 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1198 #endif /* !DISABLE_JIT */
1201 mono_type_to_ldind (MonoType *type)
1207 switch (type->type) {
1209 return CEE_LDIND_I1;
1211 case MONO_TYPE_BOOLEAN:
1212 return CEE_LDIND_U1;
1214 return CEE_LDIND_I2;
1216 case MONO_TYPE_CHAR:
1217 return CEE_LDIND_U2;
1219 return CEE_LDIND_I4;
1221 return CEE_LDIND_U4;
1225 case MONO_TYPE_FNPTR:
1227 case MONO_TYPE_CLASS:
1228 case MONO_TYPE_STRING:
1229 case MONO_TYPE_OBJECT:
1230 case MONO_TYPE_SZARRAY:
1231 case MONO_TYPE_ARRAY:
1232 return CEE_LDIND_REF;
1235 return CEE_LDIND_I8;
1237 return CEE_LDIND_R4;
1239 return CEE_LDIND_R8;
1240 case MONO_TYPE_VALUETYPE:
1241 if (type->data.klass->enumtype) {
1242 type = mono_class_enum_basetype (type->data.klass);
1246 case MONO_TYPE_TYPEDBYREF:
1248 case MONO_TYPE_GENERICINST:
1249 type = &type->data.generic_class->container_class->byval_arg;
1252 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1258 mono_type_to_stind (MonoType *type)
1261 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1265 switch (type->type) {
1268 case MONO_TYPE_BOOLEAN:
1269 return CEE_STIND_I1;
1272 case MONO_TYPE_CHAR:
1273 return CEE_STIND_I2;
1276 return CEE_STIND_I4;
1280 case MONO_TYPE_FNPTR:
1282 case MONO_TYPE_CLASS:
1283 case MONO_TYPE_STRING:
1284 case MONO_TYPE_OBJECT:
1285 case MONO_TYPE_SZARRAY:
1286 case MONO_TYPE_ARRAY:
1287 return CEE_STIND_REF;
1290 return CEE_STIND_I8;
1292 return CEE_STIND_R4;
1294 return CEE_STIND_R8;
1295 case MONO_TYPE_VALUETYPE:
1296 if (type->data.klass->enumtype) {
1297 type = mono_class_enum_basetype (type->data.klass);
1301 case MONO_TYPE_TYPEDBYREF:
1303 case MONO_TYPE_GENERICINST:
1304 type = &type->data.generic_class->container_class->byval_arg;
1307 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1315 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1318 case MONO_MARSHAL_CONV_BOOL_I4:
1319 mono_mb_emit_ldloc (mb, 1);
1320 mono_mb_emit_ldloc (mb, 0);
1321 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1322 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1323 mono_mb_emit_byte (mb, 3);
1324 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1325 mono_mb_emit_byte (mb, CEE_BR_S);
1326 mono_mb_emit_byte (mb, 1);
1327 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1328 mono_mb_emit_byte (mb, CEE_STIND_I1);
1330 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1331 mono_mb_emit_ldloc (mb, 1);
1332 mono_mb_emit_ldloc (mb, 0);
1333 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1334 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1335 mono_mb_emit_byte (mb, 3);
1336 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1337 mono_mb_emit_byte (mb, CEE_BR_S);
1338 mono_mb_emit_byte (mb, 1);
1339 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1340 mono_mb_emit_byte (mb, CEE_STIND_I1);
1342 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1343 MonoClass *eklass = NULL;
1346 if (type->type == MONO_TYPE_SZARRAY) {
1347 eklass = type->data.klass;
1349 g_assert_not_reached ();
1352 esize = mono_class_native_size (eklass, NULL);
1354 /* create a new array */
1355 mono_mb_emit_ldloc (mb, 1);
1356 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1357 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1358 mono_mb_emit_byte (mb, CEE_STIND_REF);
1360 if (eklass->blittable) {
1361 /* copy the elements */
1362 mono_mb_emit_ldloc (mb, 1);
1363 mono_mb_emit_byte (mb, CEE_LDIND_I);
1364 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1365 mono_mb_emit_byte (mb, CEE_ADD);
1366 mono_mb_emit_ldloc (mb, 0);
1367 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1368 mono_mb_emit_byte (mb, CEE_PREFIX1);
1369 mono_mb_emit_byte (mb, CEE_CPBLK);
1372 int array_var, src_var, dst_var, index_var;
1373 guint32 label2, label3;
1375 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1376 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1377 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1380 mono_mb_emit_ldloc (mb, 1);
1381 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1382 mono_mb_emit_stloc (mb, array_var);
1384 /* save the old src pointer */
1385 mono_mb_emit_ldloc (mb, 0);
1386 mono_mb_emit_stloc (mb, src_var);
1387 /* save the old dst pointer */
1388 mono_mb_emit_ldloc (mb, 1);
1389 mono_mb_emit_stloc (mb, dst_var);
1391 /* Emit marshalling loop */
1392 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1393 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1394 mono_mb_emit_stloc (mb, index_var);
1397 label2 = mono_mb_get_label (mb);
1398 mono_mb_emit_ldloc (mb, index_var);
1399 mono_mb_emit_ldloc (mb, array_var);
1400 mono_mb_emit_byte (mb, CEE_LDLEN);
1401 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1403 /* src is already set */
1406 mono_mb_emit_ldloc (mb, array_var);
1407 mono_mb_emit_ldloc (mb, index_var);
1408 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1409 mono_mb_emit_stloc (mb, 1);
1411 /* Do the conversion */
1412 emit_struct_conv (mb, eklass, TRUE);
1415 mono_mb_emit_add_to_local (mb, index_var, 1);
1417 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1419 mono_mb_patch_branch (mb, label3);
1421 /* restore the old src pointer */
1422 mono_mb_emit_ldloc (mb, src_var);
1423 mono_mb_emit_stloc (mb, 0);
1424 /* restore the old dst pointer */
1425 mono_mb_emit_ldloc (mb, dst_var);
1426 mono_mb_emit_stloc (mb, 1);
1430 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1431 MonoClass *eclass = mono_defaults.char_class;
1433 /* create a new array */
1434 mono_mb_emit_ldloc (mb, 1);
1435 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1436 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1437 mono_mb_emit_byte (mb, CEE_STIND_REF);
1439 mono_mb_emit_ldloc (mb, 1);
1440 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1441 mono_mb_emit_ldloc (mb, 0);
1442 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1443 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1446 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1447 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1448 mono_mb_emit_ldloc (mb, 1);
1449 mono_mb_emit_ldloc (mb, 0);
1450 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1451 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1453 mono_mb_emit_ldloc (mb, 1);
1454 mono_mb_emit_ldloc (mb, 0);
1455 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1457 mono_mb_emit_byte (mb, CEE_STIND_REF);
1459 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1460 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1461 mono_mb_emit_ldloc (mb, 1);
1462 mono_mb_emit_ldloc (mb, 0);
1463 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1464 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1466 mono_mb_emit_ldloc (mb, 1);
1467 mono_mb_emit_ldloc (mb, 0);
1468 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1470 mono_mb_emit_byte (mb, CEE_STIND_REF);
1472 case MONO_MARSHAL_CONV_STR_LPTSTR:
1473 mono_mb_emit_ldloc (mb, 1);
1474 mono_mb_emit_ldloc (mb, 0);
1475 mono_mb_emit_byte (mb, CEE_LDIND_I);
1477 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1479 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1481 mono_mb_emit_byte (mb, CEE_STIND_REF);
1484 // In Mono historically LPSTR was treated as a UTF8STR
1485 case MONO_MARSHAL_CONV_STR_LPSTR:
1486 case MONO_MARSHAL_CONV_STR_UTF8STR:
1487 mono_mb_emit_ldloc (mb, 1);
1488 mono_mb_emit_ldloc (mb, 0);
1489 mono_mb_emit_byte (mb, CEE_LDIND_I);
1490 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1491 mono_mb_emit_byte (mb, CEE_STIND_REF);
1493 case MONO_MARSHAL_CONV_STR_LPWSTR:
1494 mono_mb_emit_ldloc (mb, 1);
1495 mono_mb_emit_ldloc (mb, 0);
1496 mono_mb_emit_byte (mb, CEE_LDIND_I);
1497 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1498 mono_mb_emit_byte (mb, CEE_STIND_REF);
1500 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1501 MonoClass *klass = mono_class_from_mono_type (type);
1502 int src_var, dst_var;
1504 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1505 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1507 /* *dst = new object */
1508 mono_mb_emit_ldloc (mb, 1);
1509 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1510 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1511 mono_mb_emit_byte (mb, CEE_STIND_REF);
1513 /* save the old src pointer */
1514 mono_mb_emit_ldloc (mb, 0);
1515 mono_mb_emit_stloc (mb, src_var);
1516 /* save the old dst pointer */
1517 mono_mb_emit_ldloc (mb, 1);
1518 mono_mb_emit_stloc (mb, dst_var);
1520 /* dst = pointer to newly created object data */
1521 mono_mb_emit_ldloc (mb, 1);
1522 mono_mb_emit_byte (mb, CEE_LDIND_I);
1523 mono_mb_emit_icon (mb, sizeof (MonoObject));
1524 mono_mb_emit_byte (mb, CEE_ADD);
1525 mono_mb_emit_stloc (mb, 1);
1527 emit_struct_conv (mb, klass, TRUE);
1529 /* restore the old src pointer */
1530 mono_mb_emit_ldloc (mb, src_var);
1531 mono_mb_emit_stloc (mb, 0);
1532 /* restore the old dst pointer */
1533 mono_mb_emit_ldloc (mb, dst_var);
1534 mono_mb_emit_stloc (mb, 1);
1537 case MONO_MARSHAL_CONV_DEL_FTN: {
1538 MonoClass *klass = mono_class_from_mono_type (type);
1540 mono_mb_emit_ldloc (mb, 1);
1541 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1542 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1543 mono_mb_emit_ldloc (mb, 0);
1544 mono_mb_emit_byte (mb, CEE_LDIND_I);
1545 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1546 mono_mb_emit_byte (mb, CEE_STIND_REF);
1549 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1550 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1554 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1555 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1556 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1557 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1559 #endif /* DISABLE_COM */
1561 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1563 * Passing SafeHandles as ref does not allow the unmanaged code
1564 * to change the SafeHandle value. If the value is changed,
1565 * we should issue a diagnostic exception (NotSupportedException)
1566 * that informs the user that changes to handles in unmanaged code
1569 * Since we currently have no access to the original
1570 * SafeHandle that was used during the marshalling,
1571 * for now we just ignore this, and ignore/discard any
1572 * changes that might have happened to the handle.
1577 case MONO_MARSHAL_CONV_HANDLEREF: {
1579 * Passing HandleRefs in a struct that is ref()ed does not
1580 * copy the values back to the HandleRef
1585 case MONO_MARSHAL_CONV_STR_BSTR:
1586 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1587 case MONO_MARSHAL_CONV_STR_TBSTR:
1588 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1590 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1592 mono_mb_emit_exception_marshal_directive (mb, msg);
1599 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1602 if (!ind_store_type)
1603 ind_store_type = &dummy;
1604 *ind_store_type = CEE_STIND_I;
1606 case MONO_MARSHAL_CONV_STR_LPWSTR:
1607 return mono_marshal_string_to_utf16;
1608 case MONO_MARSHAL_CONV_LPWSTR_STR:
1609 *ind_store_type = CEE_STIND_REF;
1610 return ves_icall_mono_string_from_utf16;
1611 case MONO_MARSHAL_CONV_LPTSTR_STR:
1612 *ind_store_type = CEE_STIND_REF;
1613 return mono_string_new_wrapper;
1614 case MONO_MARSHAL_CONV_UTF8STR_STR:
1615 case MONO_MARSHAL_CONV_LPSTR_STR:
1616 *ind_store_type = CEE_STIND_REF;
1617 return mono_string_new_wrapper;
1618 case MONO_MARSHAL_CONV_STR_LPTSTR:
1620 return mono_marshal_string_to_utf16;
1622 return mono_string_to_utf8str;
1624 // In Mono historically LPSTR was treated as a UTF8STR
1625 case MONO_MARSHAL_CONV_STR_UTF8STR:
1626 case MONO_MARSHAL_CONV_STR_LPSTR:
1627 return mono_string_to_utf8str;
1628 case MONO_MARSHAL_CONV_STR_BSTR:
1629 return mono_string_to_bstr;
1630 case MONO_MARSHAL_CONV_BSTR_STR:
1631 *ind_store_type = CEE_STIND_REF;
1632 return mono_string_from_bstr_icall;
1633 case MONO_MARSHAL_CONV_STR_TBSTR:
1634 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1635 return mono_string_to_ansibstr;
1636 case MONO_MARSHAL_CONV_SB_UTF8STR:
1637 case MONO_MARSHAL_CONV_SB_LPSTR:
1638 return mono_string_builder_to_utf8;
1639 case MONO_MARSHAL_CONV_SB_LPTSTR:
1641 return mono_string_builder_to_utf16;
1643 return mono_string_builder_to_utf8;
1645 case MONO_MARSHAL_CONV_SB_LPWSTR:
1646 return mono_string_builder_to_utf16;
1647 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1648 return mono_array_to_savearray;
1649 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1650 return mono_array_to_lparray;
1651 case MONO_MARSHAL_FREE_LPARRAY:
1652 return mono_free_lparray;
1653 case MONO_MARSHAL_CONV_DEL_FTN:
1654 return mono_delegate_to_ftnptr;
1655 case MONO_MARSHAL_CONV_FTN_DEL:
1656 *ind_store_type = CEE_STIND_REF;
1657 return mono_ftnptr_to_delegate;
1658 case MONO_MARSHAL_CONV_UTF8STR_SB:
1659 case MONO_MARSHAL_CONV_LPSTR_SB:
1660 *ind_store_type = CEE_STIND_REF;
1661 return mono_string_utf8_to_builder;
1662 case MONO_MARSHAL_CONV_LPTSTR_SB:
1663 *ind_store_type = CEE_STIND_REF;
1665 return mono_string_utf16_to_builder;
1667 return mono_string_utf8_to_builder;
1669 case MONO_MARSHAL_CONV_LPWSTR_SB:
1670 *ind_store_type = CEE_STIND_REF;
1671 return mono_string_utf16_to_builder;
1672 case MONO_MARSHAL_FREE_ARRAY:
1673 return mono_marshal_free_array;
1674 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1675 return mono_string_to_byvalstr;
1676 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1677 return mono_string_to_byvalwstr;
1679 g_assert_not_reached ();
1686 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1692 case MONO_MARSHAL_CONV_BOOL_I4:
1693 mono_mb_emit_ldloc (mb, 1);
1694 mono_mb_emit_ldloc (mb, 0);
1695 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1696 mono_mb_emit_byte (mb, CEE_STIND_I4);
1698 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1699 mono_mb_emit_ldloc (mb, 1);
1700 mono_mb_emit_ldloc (mb, 0);
1701 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1702 mono_mb_emit_byte (mb, CEE_NEG);
1703 mono_mb_emit_byte (mb, CEE_STIND_I2);
1705 // In Mono historically LPSTR was treated as a UTF8STR
1706 case MONO_MARSHAL_CONV_STR_UTF8STR:
1707 case MONO_MARSHAL_CONV_STR_LPWSTR:
1708 case MONO_MARSHAL_CONV_STR_LPSTR:
1709 case MONO_MARSHAL_CONV_STR_LPTSTR:
1710 case MONO_MARSHAL_CONV_STR_BSTR:
1711 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1712 case MONO_MARSHAL_CONV_STR_TBSTR: {
1715 /* free space if free == true */
1716 mono_mb_emit_ldloc (mb, 2);
1717 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1718 mono_mb_emit_ldloc (mb, 1);
1719 mono_mb_emit_byte (mb, CEE_LDIND_I);
1720 mono_mb_emit_icall (mb, g_free);
1721 mono_mb_patch_short_branch (mb, pos);
1723 mono_mb_emit_ldloc (mb, 1);
1724 mono_mb_emit_ldloc (mb, 0);
1725 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1726 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1727 mono_mb_emit_byte (mb, stind_op);
1730 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1731 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1732 case MONO_MARSHAL_CONV_DEL_FTN:
1733 mono_mb_emit_ldloc (mb, 1);
1734 mono_mb_emit_ldloc (mb, 0);
1735 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1736 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1737 mono_mb_emit_byte (mb, stind_op);
1739 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1740 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1743 mono_mb_emit_ldloc (mb, 1); /* dst */
1744 mono_mb_emit_ldloc (mb, 0);
1745 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1746 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1747 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1750 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1751 MonoClass *eklass = NULL;
1754 if (type->type == MONO_TYPE_SZARRAY) {
1755 eklass = type->data.klass;
1757 g_assert_not_reached ();
1760 if (eklass->valuetype)
1761 esize = mono_class_native_size (eklass, NULL);
1763 esize = sizeof (gpointer);
1765 mono_mb_emit_ldloc (mb, 0);
1766 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1767 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1769 if (eklass->blittable) {
1770 mono_mb_emit_ldloc (mb, 1);
1771 mono_mb_emit_ldloc (mb, 0);
1772 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1773 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1774 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1775 mono_mb_emit_byte (mb, CEE_PREFIX1);
1776 mono_mb_emit_byte (mb, CEE_CPBLK);
1778 int array_var, src_var, dst_var, index_var;
1779 guint32 label2, label3;
1781 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1782 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1783 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1786 mono_mb_emit_ldloc (mb, 0);
1787 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1788 mono_mb_emit_stloc (mb, array_var);
1790 /* save the old src pointer */
1791 mono_mb_emit_ldloc (mb, 0);
1792 mono_mb_emit_stloc (mb, src_var);
1793 /* save the old dst pointer */
1794 mono_mb_emit_ldloc (mb, 1);
1795 mono_mb_emit_stloc (mb, dst_var);
1797 /* Emit marshalling loop */
1798 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1799 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1800 mono_mb_emit_stloc (mb, index_var);
1803 label2 = mono_mb_get_label (mb);
1804 mono_mb_emit_ldloc (mb, index_var);
1805 mono_mb_emit_ldloc (mb, array_var);
1806 mono_mb_emit_byte (mb, CEE_LDLEN);
1807 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1810 mono_mb_emit_ldloc (mb, array_var);
1811 mono_mb_emit_ldloc (mb, index_var);
1812 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1813 mono_mb_emit_stloc (mb, 0);
1815 /* dst is already set */
1817 /* Do the conversion */
1818 emit_struct_conv (mb, eklass, FALSE);
1821 mono_mb_emit_add_to_local (mb, index_var, 1);
1823 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1825 mono_mb_patch_branch (mb, label3);
1827 /* restore the old src pointer */
1828 mono_mb_emit_ldloc (mb, src_var);
1829 mono_mb_emit_stloc (mb, 0);
1830 /* restore the old dst pointer */
1831 mono_mb_emit_ldloc (mb, dst_var);
1832 mono_mb_emit_stloc (mb, 1);
1835 mono_mb_patch_branch (mb, pos);
1838 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1839 mono_mb_emit_ldloc (mb, 0);
1840 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1841 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1843 mono_mb_emit_ldloc (mb, 1);
1844 mono_mb_emit_ldloc (mb, 0);
1845 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1846 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1847 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1848 mono_mb_patch_short_branch (mb, pos);
1851 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1852 int src_var, dst_var;
1854 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1855 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1857 mono_mb_emit_ldloc (mb, 0);
1858 mono_mb_emit_byte (mb, CEE_LDIND_I);
1859 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1861 /* save the old src pointer */
1862 mono_mb_emit_ldloc (mb, 0);
1863 mono_mb_emit_stloc (mb, src_var);
1864 /* save the old dst pointer */
1865 mono_mb_emit_ldloc (mb, 1);
1866 mono_mb_emit_stloc (mb, dst_var);
1868 /* src = pointer to object data */
1869 mono_mb_emit_ldloc (mb, 0);
1870 mono_mb_emit_byte (mb, CEE_LDIND_I);
1871 mono_mb_emit_icon (mb, sizeof (MonoObject));
1872 mono_mb_emit_byte (mb, CEE_ADD);
1873 mono_mb_emit_stloc (mb, 0);
1875 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1877 /* restore the old src pointer */
1878 mono_mb_emit_ldloc (mb, src_var);
1879 mono_mb_emit_stloc (mb, 0);
1880 /* restore the old dst pointer */
1881 mono_mb_emit_ldloc (mb, dst_var);
1882 mono_mb_emit_stloc (mb, 1);
1884 mono_mb_patch_branch (mb, pos);
1889 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1890 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1891 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1892 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1894 #endif /* DISABLE_COM */
1896 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1899 mono_mb_emit_ldloc (mb, 0);
1900 mono_mb_emit_byte (mb, CEE_LDIND_I);
1901 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1902 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1903 mono_mb_patch_branch (mb, pos);
1905 /* Pull the handle field from SafeHandle */
1906 mono_mb_emit_ldloc (mb, 1);
1907 mono_mb_emit_ldloc (mb, 0);
1908 mono_mb_emit_byte (mb, CEE_LDIND_I);
1909 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1910 mono_mb_emit_byte (mb, CEE_LDIND_I);
1911 mono_mb_emit_byte (mb, CEE_STIND_I);
1915 case MONO_MARSHAL_CONV_HANDLEREF: {
1916 mono_mb_emit_ldloc (mb, 1);
1917 mono_mb_emit_ldloc (mb, 0);
1918 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1919 mono_mb_emit_byte (mb, CEE_ADD);
1920 mono_mb_emit_byte (mb, CEE_LDIND_I);
1921 mono_mb_emit_byte (mb, CEE_STIND_I);
1926 g_error ("marshalling conversion %d not implemented", conv);
1932 offset_of_first_nonstatic_field (MonoClass *klass)
1935 int fcount = mono_class_get_field_count (klass);
1936 for (i = 0; i < fcount; i++) {
1937 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
1938 return klass->fields[i].offset - sizeof (MonoObject);
1945 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1946 int offset_of_first_child_field, MonoMarshalNative string_encoding)
1948 MonoMarshalType *info;
1952 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
1954 info = mono_marshal_load_type_info (klass);
1956 if (info->native_size == 0)
1959 if (klass->blittable) {
1960 int usize = mono_class_value_size (klass, NULL);
1961 g_assert (usize == info->native_size);
1962 mono_mb_emit_ldloc (mb, 1);
1963 mono_mb_emit_ldloc (mb, 0);
1964 mono_mb_emit_icon (mb, usize);
1965 mono_mb_emit_byte (mb, CEE_PREFIX1);
1966 mono_mb_emit_byte (mb, CEE_CPBLK);
1969 mono_mb_emit_add_to_local (mb, 0, usize);
1970 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
1972 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
1973 mono_mb_emit_add_to_local (mb, 1, usize);
1978 if (klass != mono_class_try_get_safehandle_class ()) {
1979 if (mono_class_is_auto_layout (klass)) {
1980 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1981 mono_type_full_name (&klass->byval_arg));
1982 mono_mb_emit_exception_marshal_directive (mb, msg);
1987 for (i = 0; i < info->num_fields; i++) {
1988 MonoMarshalNative ntype;
1989 MonoMarshalConv conv;
1990 MonoType *ftype = info->fields [i].field->type;
1993 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1995 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1998 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2001 msize = klass->instance_size - info->fields [i].field->offset;
2002 usize = info->native_size - info->fields [i].offset;
2004 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2005 usize = info->fields [i + 1].offset - info->fields [i].offset;
2008 if (klass != mono_class_try_get_safehandle_class ()){
2010 * FIXME: Should really check for usize==0 and msize>0, but we apply
2011 * the layout to the managed structure as well.
2014 if (mono_class_is_explicit_layout (klass) && (usize == 0)) {
2015 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2016 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2017 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2018 "reference field at the same offset as another field.",
2019 mono_type_full_name (&klass->byval_arg));
2024 case MONO_MARSHAL_CONV_NONE: {
2027 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2028 g_assert (!ftype->byref);
2029 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2030 mono_mb_emit_ldloc (mb, 1);
2031 mono_mb_emit_ldloc (mb, 0);
2032 mono_mb_emit_byte (mb, CEE_LDIND_I);
2033 mono_mb_emit_byte (mb, CEE_STIND_I);
2044 case MONO_TYPE_BOOLEAN:
2047 case MONO_TYPE_CHAR:
2053 mono_mb_emit_ldloc (mb, 1);
2054 mono_mb_emit_ldloc (mb, 0);
2055 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2057 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2058 mono_mb_emit_byte (mb, CEE_STIND_I2);
2060 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2061 mono_mb_emit_byte (mb, CEE_STIND_I1);
2064 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2065 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2068 case MONO_TYPE_VALUETYPE: {
2069 int src_var, dst_var;
2071 if (ftype->data.klass->enumtype) {
2072 ftype = mono_class_enum_basetype (ftype->data.klass);
2076 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2077 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2079 /* save the old src pointer */
2080 mono_mb_emit_ldloc (mb, 0);
2081 mono_mb_emit_stloc (mb, src_var);
2082 /* save the old dst pointer */
2083 mono_mb_emit_ldloc (mb, 1);
2084 mono_mb_emit_stloc (mb, dst_var);
2086 emit_struct_conv (mb, ftype->data.klass, to_object);
2088 /* restore the old src pointer */
2089 mono_mb_emit_ldloc (mb, src_var);
2090 mono_mb_emit_stloc (mb, 0);
2091 /* restore the old dst pointer */
2092 mono_mb_emit_ldloc (mb, dst_var);
2093 mono_mb_emit_stloc (mb, 1);
2096 case MONO_TYPE_OBJECT: {
2099 static MonoMethod *variant_clear = NULL;
2100 static MonoMethod *get_object_for_native_variant = NULL;
2103 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2104 if (!get_object_for_native_variant)
2105 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2106 mono_mb_emit_ldloc (mb, 1);
2107 mono_mb_emit_ldloc (mb, 0);
2108 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2109 mono_mb_emit_byte (mb, CEE_STIND_REF);
2111 mono_mb_emit_ldloc (mb, 0);
2112 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2115 static MonoMethod *get_native_variant_for_object = NULL;
2117 if (!get_native_variant_for_object)
2118 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2120 mono_mb_emit_ldloc (mb, 0);
2121 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2122 mono_mb_emit_ldloc (mb, 1);
2123 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2126 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2127 mono_mb_emit_exception_marshal_directive (mb, msg);
2133 g_warning ("marshaling type %02x not implemented", ftype->type);
2134 g_assert_not_reached ();
2139 int src_var, dst_var;
2141 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2142 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2144 /* save the old src pointer */
2145 mono_mb_emit_ldloc (mb, 0);
2146 mono_mb_emit_stloc (mb, src_var);
2147 /* save the old dst pointer */
2148 mono_mb_emit_ldloc (mb, 1);
2149 mono_mb_emit_stloc (mb, dst_var);
2152 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2154 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2156 /* restore the old src pointer */
2157 mono_mb_emit_ldloc (mb, src_var);
2158 mono_mb_emit_stloc (mb, 0);
2159 /* restore the old dst pointer */
2160 mono_mb_emit_ldloc (mb, dst_var);
2161 mono_mb_emit_stloc (mb, 1);
2166 mono_mb_emit_add_to_local (mb, 0, usize);
2167 mono_mb_emit_add_to_local (mb, 1, msize);
2169 mono_mb_emit_add_to_local (mb, 0, msize);
2170 mono_mb_emit_add_to_local (mb, 1, usize);
2176 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2178 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2182 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2184 /* Call DestroyStructure */
2185 /* FIXME: Only do this if needed */
2186 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2187 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2188 mono_mb_emit_ldloc (mb, struct_var);
2189 mono_mb_emit_icall (mb, mono_struct_delete_old);
2193 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2195 int pos_noabort, pos_noex;
2197 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2198 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2199 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2200 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2202 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2203 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2205 mono_mb_emit_icall (mb, checkpoint_func);
2206 /* Throw the exception returned by the checkpoint function, if any */
2207 mono_mb_emit_byte (mb, CEE_DUP);
2208 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2209 mono_mb_emit_byte (mb, CEE_THROW);
2210 mono_mb_patch_branch (mb, pos_noex);
2211 mono_mb_emit_byte (mb, CEE_POP);
2213 mono_mb_patch_branch (mb, pos_noabort);
2217 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2219 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2222 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2226 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2228 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2232 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2234 emit_thread_interrupt_checkpoint (mb);
2238 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2240 emit_thread_force_interrupt_checkpoint (mb);
2243 #endif /* DISABLE_JIT */
2245 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2246 static MonoAsyncResult *
2247 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2250 MonoMulticastDelegate *mcast_delegate;
2254 g_assert (delegate);
2255 mcast_delegate = (MonoMulticastDelegate *) delegate;
2256 if (mcast_delegate->delegates != NULL) {
2257 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2261 #ifndef DISABLE_REMOTING
2262 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2263 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2264 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2265 /* If the target is a proxy, make a direct call. Is proxy's work
2266 // to make the call asynchronous.
2268 MonoMethodMessage *msg;
2269 MonoDelegate *async_callback;
2271 MonoAsyncResult *ares;
2273 MonoArray *out_args;
2274 method = delegate->method;
2276 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2277 if (mono_error_set_pending_exception (&error))
2279 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2280 if (mono_error_set_pending_exception (&error))
2282 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2283 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2284 MONO_OBJECT_SETREF (msg, async_result, ares);
2285 msg->call_type = CallType_BeginInvoke;
2288 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2289 if (!mono_error_ok (&error)) {
2290 mono_error_set_pending_exception (&error);
2294 mono_set_pending_exception ((MonoException *) exc);
2300 klass = delegate->object.vtable->klass;
2302 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2304 method = mono_get_delegate_invoke (klass);
2307 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2308 mono_error_set_pending_exception (&error);
2315 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2317 int i, params_var, tmp_var;
2319 /* allocate local (pointer) *params[] */
2320 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2321 /* allocate local (pointer) tmp */
2322 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2324 /* alloate space on stack to store an array of pointers to the arguments */
2325 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2326 mono_mb_emit_byte (mb, CEE_PREFIX1);
2327 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2328 mono_mb_emit_stloc (mb, params_var);
2331 mono_mb_emit_ldloc (mb, params_var);
2332 mono_mb_emit_stloc (mb, tmp_var);
2334 if (save_this && sig->hasthis) {
2335 mono_mb_emit_ldloc (mb, tmp_var);
2336 mono_mb_emit_ldarg_addr (mb, 0);
2337 mono_mb_emit_byte (mb, CEE_STIND_I);
2338 /* tmp = tmp + sizeof (gpointer) */
2339 if (sig->param_count)
2340 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2344 for (i = 0; i < sig->param_count; i++) {
2345 mono_mb_emit_ldloc (mb, tmp_var);
2346 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2347 mono_mb_emit_byte (mb, CEE_STIND_I);
2348 /* tmp = tmp + sizeof (gpointer) */
2349 if (i < (sig->param_count - 1))
2350 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2356 #endif /* DISABLE_JIT */
2359 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2363 GString *res = g_string_new ("");
2366 g_string_append (res, prefix);
2367 g_string_append_c (res, '_');
2370 mono_type_get_desc (res, sig->ret, FALSE);
2373 g_string_append (res, "__this__");
2375 for (i = 0; i < sig->param_count; ++i) {
2376 g_string_append_c (res, '_');
2377 mono_type_get_desc (res, sig->params [i], FALSE);
2380 g_string_free (res, FALSE);
2385 * mono_marshal_get_string_encoding:
2387 * Return the string encoding which should be used for a given parameter.
2389 static MonoMarshalNative
2390 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2392 /* First try the parameter marshal info */
2394 if (spec->native == MONO_NATIVE_LPARRAY) {
2395 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2396 return spec->data.array_data.elem_type;
2399 return spec->native;
2403 return MONO_NATIVE_LPSTR;
2405 /* Then try the method level marshal info */
2406 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2407 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2408 return MONO_NATIVE_LPSTR;
2409 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2410 return MONO_NATIVE_LPWSTR;
2411 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2413 return MONO_NATIVE_LPWSTR;
2415 return MONO_NATIVE_LPSTR;
2418 return MONO_NATIVE_LPSTR;
2422 static MonoMarshalConv
2423 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2425 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2428 case MONO_NATIVE_LPWSTR:
2429 return MONO_MARSHAL_CONV_STR_LPWSTR;
2430 case MONO_NATIVE_LPSTR:
2431 case MONO_NATIVE_VBBYREFSTR:
2432 return MONO_MARSHAL_CONV_STR_LPSTR;
2433 case MONO_NATIVE_LPTSTR:
2434 return MONO_MARSHAL_CONV_STR_LPTSTR;
2435 case MONO_NATIVE_BSTR:
2436 return MONO_MARSHAL_CONV_STR_BSTR;
2437 case MONO_NATIVE_UTF8STR:
2438 return MONO_MARSHAL_CONV_STR_UTF8STR;
2440 return MONO_MARSHAL_CONV_INVALID;
2444 static MonoMarshalConv
2445 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2447 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2450 case MONO_NATIVE_LPWSTR:
2451 return MONO_MARSHAL_CONV_SB_LPWSTR;
2452 case MONO_NATIVE_LPSTR:
2453 return MONO_MARSHAL_CONV_SB_LPSTR;
2454 case MONO_NATIVE_UTF8STR:
2455 return MONO_MARSHAL_CONV_SB_UTF8STR;
2456 case MONO_NATIVE_LPTSTR:
2457 return MONO_MARSHAL_CONV_SB_LPTSTR;
2459 return MONO_MARSHAL_CONV_INVALID;
2463 static MonoMarshalConv
2464 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2466 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2471 case MONO_NATIVE_LPWSTR:
2473 return MONO_MARSHAL_CONV_LPWSTR_STR;
2474 case MONO_NATIVE_UTF8STR:
2475 return MONO_MARSHAL_CONV_UTF8STR_STR;
2476 case MONO_NATIVE_LPSTR:
2477 case MONO_NATIVE_VBBYREFSTR:
2478 return MONO_MARSHAL_CONV_LPSTR_STR;
2479 case MONO_NATIVE_LPTSTR:
2480 return MONO_MARSHAL_CONV_LPTSTR_STR;
2481 case MONO_NATIVE_BSTR:
2482 return MONO_MARSHAL_CONV_BSTR_STR;
2484 return MONO_MARSHAL_CONV_INVALID;
2488 static MonoMarshalConv
2489 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2491 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2496 case MONO_NATIVE_LPWSTR:
2498 * mono_string_builder_to_utf16 does not allocate a
2499 * new buffer, so no need to free it.
2502 return MONO_MARSHAL_CONV_LPWSTR_SB;
2503 case MONO_NATIVE_UTF8STR:
2504 return MONO_MARSHAL_CONV_UTF8STR_SB;
2505 case MONO_NATIVE_LPSTR:
2506 return MONO_MARSHAL_CONV_LPSTR_SB;
2508 case MONO_NATIVE_LPTSTR:
2509 return MONO_MARSHAL_CONV_LPTSTR_SB;
2512 return MONO_MARSHAL_CONV_INVALID;
2517 * Return whenever a field of a native structure or an array member needs to
2521 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2523 MonoMarshalNative encoding;
2526 case MONO_TYPE_VALUETYPE:
2527 /* FIXME: Optimize this */
2529 case MONO_TYPE_OBJECT:
2530 case MONO_TYPE_CLASS:
2531 if (t->data.klass == mono_defaults.stringbuilder_class) {
2533 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2537 case MONO_TYPE_STRING:
2538 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2539 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2546 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2549 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2552 mono_marshal_lock ();
2555 g_hash_table_new (hash_func, equal_func);
2556 mono_memory_barrier ();
2559 mono_marshal_unlock ();
2565 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2567 return get_cache (var, hash_func, equal_func);
2571 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2575 mono_marshal_lock ();
2576 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2577 mono_marshal_unlock ();
2584 * Create a MonoMethod from MB, set INFO as wrapper info.
2587 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2588 int max_stack, WrapperInfo *info)
2592 res = mono_mb_create_method (mb, sig, max_stack);
2594 mono_marshal_set_wrapper_info (res, info);
2598 /* Create the method from the builder and place it in the cache */
2600 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2601 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2602 int max_stack, WrapperInfo *info, gboolean *out_found)
2609 mono_marshal_lock ();
2610 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2611 mono_marshal_unlock ();
2614 newm = mono_mb_create_method (mb, sig, max_stack);
2615 mono_marshal_lock ();
2616 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2619 g_hash_table_insert (cache, key, res);
2620 mono_marshal_set_wrapper_info (res, info);
2621 mono_marshal_unlock ();
2625 mono_marshal_unlock ();
2626 mono_free_method (newm);
2634 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2635 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2638 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2642 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2645 int wrapper_type = wrapper->wrapper_type;
2648 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2651 info = mono_marshal_get_wrapper_info (wrapper);
2653 switch (wrapper_type) {
2654 case MONO_WRAPPER_REMOTING_INVOKE:
2655 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2656 case MONO_WRAPPER_XDOMAIN_INVOKE:
2657 m = info->d.remoting.method;
2658 if (wrapper->is_inflated) {
2662 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2663 * contains an uninflated method.
2665 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2666 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2670 case MONO_WRAPPER_SYNCHRONIZED:
2671 m = info->d.synchronized.method;
2672 if (wrapper->is_inflated) {
2675 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2676 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2680 case MONO_WRAPPER_UNBOX:
2681 return info->d.unbox.method;
2682 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2683 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2684 return info->d.managed_to_native.method;
2687 case MONO_WRAPPER_RUNTIME_INVOKE:
2688 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2689 return info->d.runtime_invoke.method;
2692 case MONO_WRAPPER_DELEGATE_INVOKE:
2694 return info->d.delegate_invoke.method;
2703 * mono_marshal_get_wrapper_info:
2705 * Retrieve the WrapperInfo structure associated with WRAPPER.
2708 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2710 g_assert (wrapper->wrapper_type);
2712 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2716 * mono_marshal_set_wrapper_info:
2718 * Set the WrapperInfo structure associated with the wrapper
2719 * method METHOD to INFO.
2722 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2726 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2729 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2734 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2738 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2739 info->subtype = subtype;
2744 * get_wrapper_target_class:
2746 * Return the class where a wrapper method should be placed.
2749 get_wrapper_target_class (MonoImage *image)
2756 * - can't put all wrappers into an mscorlib class, because they reference
2757 * metadata (signature) so they should be put into the same image as the
2758 * method they wrap, so they are unloaded together.
2759 * - putting them into a class with a type initalizer could cause the
2760 * initializer to be executed which can be a problem if the wrappers are
2762 * - putting them into an inflated class can cause problems if the the
2763 * class is deleted because it references an image which is unloaded.
2764 * To avoid these problems, we put the wrappers into the <Module> class of
2767 if (image_is_dynamic (image)) {
2768 klass = ((MonoDynamicImage*)image)->wrappers_type;
2770 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2771 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2779 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2780 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2784 * check_generic_wrapper_cache:
2786 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2787 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2788 * generic method definition.
2791 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2794 MonoMethod *inst, *def;
2795 MonoGenericContext *ctx;
2797 g_assert (orig_method->is_inflated);
2798 ctx = mono_method_get_context (orig_method);
2801 * Look for the instance
2803 res = mono_marshal_find_in_cache (cache, key);
2808 * Look for the definition
2810 def = mono_marshal_find_in_cache (cache, def_key);
2813 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2814 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2816 mono_memory_barrier ();
2817 mono_marshal_lock ();
2818 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2820 g_hash_table_insert (cache, key, inst);
2823 mono_marshal_unlock ();
2830 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2833 MonoMethod *inst, *res;
2836 * We use the same cache for the generic definition and the instances.
2838 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2839 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2840 mono_memory_barrier ();
2841 mono_marshal_lock ();
2842 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2844 g_hash_table_insert (cache, key, inst);
2847 mono_marshal_unlock ();
2852 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2856 MonoMethod *inst, *def;
2859 * Look for the instance
2861 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2866 * Look for the definition
2868 def = mono_marshal_find_in_cache (cache, def_method->klass);
2870 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2871 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2874 mono_memory_barrier ();
2875 mono_marshal_lock ();
2876 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2878 g_hash_table_insert (cache, orig_method->klass, inst);
2881 mono_marshal_unlock ();
2888 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2891 MonoMethod *inst, *res;
2892 WrapperInfo *ginfo, *info;
2895 * We use the same cache for the generic definition and the instances.
2897 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2898 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2900 ginfo = mono_marshal_get_wrapper_info (def);
2902 info = (WrapperInfo *)mono_image_alloc0 (def->klass->image, sizeof (WrapperInfo));
2903 info->subtype = ginfo->subtype;
2904 if (info->subtype == WRAPPER_SUBTYPE_NONE) {
2905 info->d.delegate_invoke.method = mono_class_inflate_generic_method_checked (ginfo->d.delegate_invoke.method, ctx, &error);
2906 mono_error_assert_ok (&error);
2910 mono_memory_barrier ();
2911 mono_marshal_lock ();
2912 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2914 g_hash_table_insert (cache, orig_method->klass, inst);
2917 mono_marshal_unlock ();
2922 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2924 MonoMethodSignature *sig;
2925 MonoMethodBuilder *mb;
2930 MonoGenericContext *ctx = NULL;
2931 MonoMethod *orig_method = NULL;
2933 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2934 !strcmp (method->name, "BeginInvoke"));
2937 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2939 if (method->is_inflated) {
2940 orig_method = method;
2941 ctx = &((MonoMethodInflated*)method)->context;
2942 method = ((MonoMethodInflated*)method)->declaring;
2945 sig = mono_signature_no_pinvoke (method);
2951 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2952 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2956 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2957 (GHashFunc)mono_signature_hash,
2958 (GCompareFunc)mono_metadata_signature_equal);
2959 if ((res = mono_marshal_find_in_cache (cache, sig)))
2963 g_assert (sig->hasthis);
2965 name = mono_signature_to_name (sig, "begin_invoke");
2967 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2969 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2973 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2975 mono_mb_emit_ldarg (mb, 0);
2976 mono_mb_emit_ldloc (mb, params_var);
2977 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2978 mono_mb_emit_byte (mb, CEE_RET);
2983 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2984 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2986 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2993 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2995 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2998 MonoDomain *domain = mono_domain_get ();
2999 MonoAsyncResult *ares;
3000 MonoMethod *method = NULL;
3001 MonoMethodSignature *sig;
3002 MonoMethodMessage *msg;
3003 MonoObject *res, *exc;
3004 MonoArray *out_args;
3007 g_assert (delegate);
3009 if (!delegate->method_info) {
3010 g_assert (delegate->method);
3011 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
3012 if (!mono_error_ok (&error)) {
3013 mono_error_set_pending_exception (&error);
3016 MONO_OBJECT_SETREF (delegate, method_info, rm);
3019 if (!delegate->method_info || !delegate->method_info->method)
3020 g_assert_not_reached ();
3022 klass = delegate->object.vtable->klass;
3024 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3025 g_assert (method != NULL);
3027 sig = mono_signature_no_pinvoke (method);
3029 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3030 if (mono_error_set_pending_exception (&error))
3033 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3035 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."));
3039 if (ares->async_delegate != (MonoObject*)delegate) {
3040 mono_set_pending_exception (mono_get_exception_invalid_operation (
3041 "The IAsyncResult object provided does not match this delegate."));
3045 #ifndef DISABLE_REMOTING
3046 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3047 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3048 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3049 if (!mono_error_ok (&error)) {
3050 mono_error_set_pending_exception (&error);
3053 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3054 if (mono_error_set_pending_exception (&error))
3056 msg->call_type = CallType_EndInvoke;
3057 MONO_OBJECT_SETREF (msg, async_result, ares);
3058 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3059 if (!mono_error_ok (&error)) {
3060 mono_error_set_pending_exception (&error);
3066 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc, &error);
3067 if (mono_error_set_pending_exception (&error))
3072 if (((MonoException*)exc)->stack_trace) {
3073 MonoError inner_error;
3074 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3075 if (is_ok (&inner_error)) {
3077 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3079 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3082 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3084 mono_set_pending_exception ((MonoException*)exc);
3087 mono_method_return_message_restore (method, params, out_args, &error);
3088 mono_error_set_pending_exception (&error);
3095 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3097 MonoType *t = mono_type_get_underlying_type (return_type);
3099 if (return_type->byref)
3100 return_type = &mono_defaults.int_class->byval_arg;
3103 case MONO_TYPE_VOID:
3104 g_assert_not_reached ();
3107 case MONO_TYPE_STRING:
3108 case MONO_TYPE_CLASS:
3109 case MONO_TYPE_OBJECT:
3110 case MONO_TYPE_ARRAY:
3111 case MONO_TYPE_SZARRAY:
3115 case MONO_TYPE_BOOLEAN:
3118 case MONO_TYPE_CHAR:
3128 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3129 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3131 case MONO_TYPE_GENERICINST:
3132 if (!mono_type_generic_inst_is_valuetype (t))
3135 case MONO_TYPE_VALUETYPE: {
3136 MonoClass *klass = mono_class_from_mono_type (return_type);
3137 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3138 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3142 case MONO_TYPE_MVAR: {
3143 MonoClass *klass = mono_class_from_mono_type (return_type);
3144 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3148 g_warning ("type 0x%x not handled", return_type->type);
3149 g_assert_not_reached ();
3152 mono_mb_emit_byte (mb, CEE_RET);
3155 #endif /* DISABLE_JIT */
3158 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3160 MonoMethodSignature *sig;
3161 MonoMethodBuilder *mb;
3166 MonoGenericContext *ctx = NULL;
3167 MonoMethod *orig_method = NULL;
3169 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3170 !strcmp (method->name, "EndInvoke"));
3173 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3175 if (method->is_inflated) {
3176 orig_method = method;
3177 ctx = &((MonoMethodInflated*)method)->context;
3178 method = ((MonoMethodInflated*)method)->declaring;
3181 sig = mono_signature_no_pinvoke (method);
3187 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3188 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3192 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3193 (GHashFunc)mono_signature_hash,
3194 (GCompareFunc)mono_metadata_signature_equal);
3195 if ((res = mono_marshal_find_in_cache (cache, sig)))
3199 g_assert (sig->hasthis);
3201 name = mono_signature_to_name (sig, "end_invoke");
3203 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3205 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3209 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3211 mono_mb_emit_ldarg (mb, 0);
3212 mono_mb_emit_ldloc (mb, params_var);
3213 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3215 if (sig->ret->type == MONO_TYPE_VOID) {
3216 mono_mb_emit_byte (mb, CEE_POP);
3217 mono_mb_emit_byte (mb, CEE_RET);
3219 mono_mb_emit_restore_result (mb, sig->ret);
3224 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3225 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3227 res = mono_mb_create_and_cache (cache, sig,
3228 mb, sig, sig->param_count + 16);
3237 MonoMethodSignature *sig;
3239 } SignaturePointerPair;
3242 signature_pointer_pair_hash (gconstpointer data)
3244 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3246 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3250 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3252 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3253 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3257 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3259 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3261 return pair->pointer == user_data;
3265 free_signature_pointer_pair (SignaturePointerPair *pair)
3271 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3273 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3275 MonoMethodBuilder *mb;
3278 gpointer cache_key = NULL;
3279 SignaturePointerPair key = { NULL, NULL };
3280 SignaturePointerPair *new_key;
3281 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3282 int pos0, pos1, pos2;
3284 MonoClass *target_class = NULL;
3285 gboolean closed_over_null = FALSE;
3286 MonoGenericContext *ctx = NULL;
3287 MonoGenericContainer *container = NULL;
3288 MonoMethod *orig_method = method;
3290 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3294 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3295 !strcmp (method->name, "Invoke"));
3297 invoke_sig = sig = mono_signature_no_pinvoke (method);
3300 * If the delegate target is null, and the target method is not static, a virtual
3301 * call is made to that method with the first delegate argument as this. This is
3302 * a non-documented .NET feature.
3305 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3306 if (target_method->is_inflated) {
3308 MonoType *target_type;
3310 g_assert (method->signature->hasthis);
3311 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3312 mono_method_get_context (method), &error);
3313 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3314 target_class = mono_class_from_mono_type (target_type);
3316 target_class = target_method->klass;
3319 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3322 if (static_method_with_first_arg_bound) {
3323 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3324 g_assert (!callvirt);
3325 invoke_sig = mono_method_signature (target_method);
3329 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3331 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3332 ctx = &((MonoMethodInflated*)method)->context;
3333 method = ((MonoMethodInflated*)method)->declaring;
3335 container = mono_method_get_generic_container (method);
3337 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
3338 g_assert (container);
3340 invoke_sig = sig = mono_signature_no_pinvoke (method);
3347 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3348 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3351 cache_key = method->klass;
3352 } else if (static_method_with_first_arg_bound) {
3353 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3354 (GHashFunc)mono_signature_hash,
3355 (GCompareFunc)mono_metadata_signature_equal);
3357 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3359 res = mono_marshal_find_in_cache (cache, invoke_sig);
3362 cache_key = invoke_sig;
3363 } else if (callvirt) {
3364 GHashTable **cache_ptr;
3366 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3368 /* We need to cache the signature+method pair */
3369 mono_marshal_lock ();
3371 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3373 key.sig = invoke_sig;
3374 key.pointer = target_method;
3375 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3376 mono_marshal_unlock ();
3380 // Inflated methods should not be in this cache because it's not stored on the imageset.
3381 g_assert (!method->is_inflated);
3382 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3383 (GHashFunc)mono_signature_hash,
3384 (GCompareFunc)mono_metadata_signature_equal);
3385 res = mono_marshal_find_in_cache (cache, sig);
3391 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3392 static_sig->hasthis = 0;
3393 if (!static_method_with_first_arg_bound)
3394 invoke_sig = static_sig;
3396 if (static_method_with_first_arg_bound)
3397 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3398 else if (closed_over_null)
3399 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3401 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3403 name = mono_signature_to_name (invoke_sig, "invoke");
3405 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3407 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3411 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3413 /* allocate local 0 (object) */
3414 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3415 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3416 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3417 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3418 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3421 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3423 g_assert (sig->hasthis);
3426 * {type: sig->ret} res;
3427 * if (delegates == null) {
3428 * return this.<target> ( args .. );
3430 * int i = 0, len = this.delegates.Length;
3432 * res = this.delegates [i].Invoke ( args .. );
3433 * } while (++i < len);
3438 /* this wrapper can be used in unmanaged-managed transitions */
3439 emit_thread_interrupt_checkpoint (mb);
3441 /* delegates = this.delegates */
3442 mono_mb_emit_ldarg (mb, 0);
3443 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3444 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3445 mono_mb_emit_stloc (mb, local_delegates);
3447 /* if (delegates == null) */
3448 mono_mb_emit_ldloc (mb, local_delegates);
3449 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3451 /* return target.<target_method|method_ptr> ( args .. ); */
3453 /* target = d.target; */
3454 mono_mb_emit_ldarg (mb, 0);
3455 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3456 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3457 mono_mb_emit_stloc (mb, local_target);
3459 /*static methods with bound first arg can have null target and still be bound*/
3460 if (!static_method_with_first_arg_bound) {
3461 /* if target != null */
3462 mono_mb_emit_ldloc (mb, local_target);
3463 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3465 /* then call this->method_ptr nonstatic */
3468 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3470 mono_mb_emit_ldloc (mb, local_target);
3471 for (i = 0; i < sig->param_count; ++i)
3472 mono_mb_emit_ldarg (mb, i + 1);
3473 mono_mb_emit_ldarg (mb, 0);
3474 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3475 mono_mb_emit_byte (mb, CEE_LDIND_I);
3476 mono_mb_emit_ldarg (mb, 0);
3477 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3478 mono_mb_emit_byte (mb, CEE_LDIND_I);
3479 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3480 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3481 mono_mb_emit_byte (mb, CEE_RET);
3484 /* else [target == null] call this->method_ptr static */
3485 mono_mb_patch_branch (mb, pos0);
3489 if (!closed_over_null) {
3490 if (target_class->valuetype) {
3491 mono_mb_emit_ldarg (mb, 1);
3492 for (i = 1; i < sig->param_count; ++i)
3493 mono_mb_emit_ldarg (mb, i + 1);
3494 mono_mb_emit_op (mb, CEE_CALL, target_method);
3496 mono_mb_emit_ldarg (mb, 1);
3497 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3498 for (i = 1; i < sig->param_count; ++i)
3499 mono_mb_emit_ldarg (mb, i + 1);
3500 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3503 mono_mb_emit_byte (mb, CEE_LDNULL);
3504 for (i = 0; i < sig->param_count; ++i)
3505 mono_mb_emit_ldarg (mb, i + 1);
3506 mono_mb_emit_op (mb, CEE_CALL, target_method);
3509 if (static_method_with_first_arg_bound) {
3510 mono_mb_emit_ldloc (mb, local_target);
3511 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3512 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3514 for (i = 0; i < sig->param_count; ++i)
3515 mono_mb_emit_ldarg (mb, i + 1);
3516 mono_mb_emit_ldarg (mb, 0);
3517 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3518 mono_mb_emit_byte (mb, CEE_LDIND_I);
3519 mono_mb_emit_ldarg (mb, 0);
3520 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3521 mono_mb_emit_byte (mb, CEE_LDIND_I);
3522 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3523 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3526 mono_mb_emit_byte (mb, CEE_RET);
3528 /* else [delegates != null] */
3529 mono_mb_patch_branch (mb, pos2);
3531 /* len = delegates.Length; */
3532 mono_mb_emit_ldloc (mb, local_delegates);
3533 mono_mb_emit_byte (mb, CEE_LDLEN);
3534 mono_mb_emit_byte (mb, CEE_CONV_I4);
3535 mono_mb_emit_stloc (mb, local_len);
3538 mono_mb_emit_icon (mb, 0);
3539 mono_mb_emit_stloc (mb, local_i);
3541 pos1 = mono_mb_get_label (mb);
3543 /* d = delegates [i]; */
3544 mono_mb_emit_ldloc (mb, local_delegates);
3545 mono_mb_emit_ldloc (mb, local_i);
3546 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3547 mono_mb_emit_stloc (mb, local_d);
3549 /* res = d.Invoke ( args .. ); */
3550 mono_mb_emit_ldloc (mb, local_d);
3551 for (i = 0; i < sig->param_count; i++)
3552 mono_mb_emit_ldarg (mb, i + 1);
3554 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3557 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3558 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3561 mono_mb_emit_stloc (mb, local_res);
3564 mono_mb_emit_add_to_local (mb, local_i, 1);
3567 mono_mb_emit_ldloc (mb, local_i);
3568 mono_mb_emit_ldloc (mb, local_len);
3569 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3573 mono_mb_emit_ldloc (mb, local_res);
3574 mono_mb_emit_byte (mb, CEE_RET);
3576 mb->skip_visibility = 1;
3577 #endif /* DISABLE_JIT */
3579 info = mono_wrapper_info_create (mb, subtype);
3580 info->d.delegate_invoke.method = method;
3585 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3586 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3587 } else if (callvirt) {
3588 new_key = g_new0 (SignaturePointerPair, 1);
3591 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3595 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3599 /* mono_method_print_code (res); */
3605 * the returned method invokes all methods in a multicast delegate.
3608 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3610 gboolean callvirt = FALSE;
3611 gboolean static_method_with_first_arg_bound = FALSE;
3612 MonoMethod *target_method = NULL;
3613 MonoMethodSignature *sig;
3615 sig = mono_signature_no_pinvoke (method);
3617 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3619 target_method = del->method;
3622 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3623 static_method_with_first_arg_bound = TRUE;
3624 target_method = del->method;
3627 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3631 MonoMethodSignature *ctor_sig;
3632 MonoMethodSignature *sig;
3635 /* protected by the marshal lock, contains CtorSigPair pointers */
3636 static GSList *strsig_list = NULL;
3638 static MonoMethodSignature *
3639 lookup_string_ctor_signature (MonoMethodSignature *sig)
3641 MonoMethodSignature *callsig;
3645 mono_marshal_lock ();
3647 for (item = strsig_list; item; item = item->next) {
3648 cs = (CtorSigPair *)item->data;
3649 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3650 * because it is lock-free.
3652 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3657 mono_marshal_unlock ();
3661 static MonoMethodSignature *
3662 add_string_ctor_signature (MonoMethod *method)
3664 MonoMethodSignature *callsig;
3667 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3668 callsig->ret = &mono_defaults.string_class->byval_arg;
3669 cs = g_new (CtorSigPair, 1);
3671 cs->ctor_sig = mono_method_signature (method);
3673 mono_marshal_lock ();
3674 strsig_list = g_slist_prepend (strsig_list, cs);
3675 mono_marshal_unlock ();
3680 * mono_marshal_get_string_ctor_signature:
3682 * Return the modified signature used by string ctors (they return the newly created
3685 MonoMethodSignature*
3686 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3688 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3690 sig = add_string_ctor_signature (method);
3696 get_runtime_invoke_type (MonoType *t, gboolean ret)
3699 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3701 /* Can't share this with 'I' as that needs another indirection */
3702 return &mono_defaults.int_class->this_arg;
3705 if (MONO_TYPE_IS_REFERENCE (t))
3706 return &mono_defaults.object_class->byval_arg;
3709 /* The result needs to be boxed */
3714 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3717 return &mono_defaults.sbyte_class->byval_arg;
3719 return &mono_defaults.int16_class->byval_arg;
3721 return &mono_defaults.int32_class->byval_arg;
3724 return &mono_defaults.int64_class->byval_arg;
3725 case MONO_TYPE_BOOLEAN:
3726 return &mono_defaults.byte_class->byval_arg;
3727 case MONO_TYPE_CHAR:
3728 return &mono_defaults.uint16_class->byval_arg;
3730 return &mono_defaults.int_class->byval_arg;
3731 case MONO_TYPE_VALUETYPE:
3732 if (t->data.klass->enumtype) {
3733 t = mono_class_enum_basetype (t->data.klass);
3743 * mono_marshal_get_runtime_invoke_sig:
3745 * Return a common signature used for sharing runtime invoke wrappers.
3747 static MonoMethodSignature*
3748 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3750 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3753 res->generic_param_count = 0;
3754 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3755 for (i = 0; i < res->param_count; ++i)
3756 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3762 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3764 /* Can't share wrappers which return a vtype since it needs to be boxed */
3765 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))
3768 return mono_metadata_signature_equal (sig1, sig2);
3776 * Emit the call to the wrapper method from a runtime invoke wrapper.
3779 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3780 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3782 gboolean virtual_, gboolean need_direct_wrapper)
3784 static MonoString *string_dummy = NULL;
3786 int *tmp_nullable_locals;
3787 gboolean void_ret = FALSE;
3788 gboolean string_ctor = method && method->string_ctor;
3790 /* to make it work with our special string constructors */
3791 if (!string_dummy) {
3792 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3793 string_dummy = mono_string_new_wrapper ("dummy");
3797 g_assert (sig->hasthis);
3798 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3803 if (mono_gc_is_moving ()) {
3804 mono_mb_emit_ptr (mb, &string_dummy);
3805 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3807 mono_mb_emit_ptr (mb, string_dummy);
3810 mono_mb_emit_ldarg (mb, 0);
3814 tmp_nullable_locals = g_new0 (int, sig->param_count);
3816 for (i = 0; i < sig->param_count; i++) {
3817 MonoType *t = sig->params [i];
3820 mono_mb_emit_ldarg (mb, 1);
3822 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3823 mono_mb_emit_byte (mb, CEE_ADD);
3827 mono_mb_emit_byte (mb, CEE_LDIND_I);
3828 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3829 * So to make this work we unbox it to a local variablee and push a reference to that.
3831 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3832 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3834 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3835 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3836 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3841 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3842 type = sig->params [i]->type;
3846 case MONO_TYPE_BOOLEAN:
3850 case MONO_TYPE_CHAR:
3859 mono_mb_emit_byte (mb, CEE_LDIND_I);
3860 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3862 case MONO_TYPE_STRING:
3863 case MONO_TYPE_CLASS:
3864 case MONO_TYPE_ARRAY:
3866 case MONO_TYPE_SZARRAY:
3867 case MONO_TYPE_OBJECT:
3868 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3870 case MONO_TYPE_GENERICINST:
3871 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3872 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3877 case MONO_TYPE_VALUETYPE:
3878 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3879 type = mono_class_enum_basetype (t->data.klass)->type;
3882 mono_mb_emit_byte (mb, CEE_LDIND_I);
3883 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3884 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3885 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3886 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3888 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3892 g_assert_not_reached ();
3897 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3898 } else if (need_direct_wrapper) {
3899 mono_mb_emit_op (mb, CEE_CALL, method);
3901 mono_mb_emit_ldarg (mb, 3);
3902 mono_mb_emit_calli (mb, callsig);
3905 if (sig->ret->byref) {
3907 g_assert_not_reached ();
3910 switch (sig->ret->type) {
3911 case MONO_TYPE_VOID:
3915 case MONO_TYPE_BOOLEAN:
3916 case MONO_TYPE_CHAR:
3929 case MONO_TYPE_VALUETYPE:
3930 case MONO_TYPE_TYPEDBYREF:
3931 case MONO_TYPE_GENERICINST:
3932 /* box value types */
3933 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3935 case MONO_TYPE_STRING:
3936 case MONO_TYPE_CLASS:
3937 case MONO_TYPE_ARRAY:
3938 case MONO_TYPE_SZARRAY:
3939 case MONO_TYPE_OBJECT:
3943 /* The result is an IntPtr */
3944 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3947 g_assert_not_reached ();
3951 mono_mb_emit_stloc (mb, loc_res);
3953 /* Convert back nullable-byref arguments */
3954 for (i = 0; i < sig->param_count; i++) {
3955 MonoType *t = sig->params [i];
3958 * Box the result and put it back into the array, the caller will have
3959 * to obtain it from there.
3961 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3962 mono_mb_emit_ldarg (mb, 1);
3963 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3964 mono_mb_emit_byte (mb, CEE_ADD);
3966 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3967 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3969 mono_mb_emit_byte (mb, CEE_STIND_REF);
3973 g_free (tmp_nullable_locals);
3977 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3978 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3979 gboolean virtual_, gboolean need_direct_wrapper)
3982 MonoExceptionClause *clause;
3983 int loc_res, loc_exc;
3985 /* The wrapper looks like this:
3991 * } catch (Exception e) {
3999 /* allocate local 0 (object) tmp */
4000 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4001 /* allocate local 1 (object) exc */
4002 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4004 /* *exc is assumed to be initialized to NULL by the caller */
4006 mono_mb_emit_byte (mb, CEE_LDARG_2);
4007 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4012 labels [1] = mono_mb_get_label (mb);
4013 emit_thread_force_interrupt_checkpoint (mb);
4014 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4016 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4018 /* Add a try clause around the call */
4019 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
4020 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4021 clause->data.catch_class = mono_defaults.exception_class;
4022 clause->try_offset = labels [1];
4023 clause->try_len = mono_mb_get_label (mb) - labels [1];
4025 clause->handler_offset = mono_mb_get_label (mb);
4028 mono_mb_emit_stloc (mb, loc_exc);
4029 mono_mb_emit_byte (mb, CEE_LDARG_2);
4030 mono_mb_emit_ldloc (mb, loc_exc);
4031 mono_mb_emit_byte (mb, CEE_STIND_REF);
4033 mono_mb_emit_branch (mb, CEE_LEAVE);
4035 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4037 mono_mb_set_clauses (mb, 1, clause);
4039 mono_mb_patch_branch (mb, labels [2]);
4040 mono_mb_emit_ldloc (mb, loc_res);
4041 mono_mb_emit_byte (mb, CEE_RET);
4046 mono_mb_patch_branch (mb, labels [0]);
4047 emit_thread_force_interrupt_checkpoint (mb);
4048 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4050 mono_mb_emit_ldloc (mb, 0);
4051 mono_mb_emit_byte (mb, CEE_RET);
4056 * generates IL code for the runtime invoke function
4057 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4059 * we also catch exceptions if exc != null
4060 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4061 * it means that the compiled code for METHOD does not have to be looked up
4062 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4063 * its METHOD argument.
4066 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4068 MonoMethodSignature *sig, *csig, *callsig;
4069 MonoMethodBuilder *mb;
4070 GHashTable *cache = NULL;
4071 MonoClass *target_klass;
4072 MonoMethod *res = NULL;
4073 static MonoMethodSignature *cctor_signature = NULL;
4074 static MonoMethodSignature *finalize_signature = NULL;
4076 const char *param_names [16];
4077 gboolean need_direct_wrapper = FALSE;
4082 if (!cctor_signature) {
4083 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4084 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4086 if (!finalize_signature) {
4087 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4088 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4089 finalize_signature->hasthis = 1;
4093 need_direct_wrapper = TRUE;
4096 * Use a separate cache indexed by methods to speed things up and to avoid the
4097 * boundless mempool growth caused by the signature_dup stuff below.
4100 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4102 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4104 res = mono_marshal_find_in_cache (cache, method);
4108 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4109 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4111 * Array Get/Set/Address methods. The JIT implements them using inline code
4112 * so we need to create an invoke wrapper which calls the method directly.
4114 need_direct_wrapper = TRUE;
4117 if (method->string_ctor) {
4118 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4120 callsig = add_string_ctor_signature (method);
4121 /* Can't share this as we push a string as this */
4122 need_direct_wrapper = TRUE;
4124 if (method_is_dynamic (method))
4125 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4127 callsig = mono_method_signature (method);
4130 sig = mono_method_signature (method);
4132 target_klass = get_wrapper_target_class (method->klass->image);
4134 /* Try to share wrappers for non-corlib methods with simple signatures */
4135 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4136 callsig = cctor_signature;
4137 target_klass = mono_defaults.object_class;
4138 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4139 callsig = finalize_signature;
4140 target_klass = mono_defaults.object_class;
4143 if (need_direct_wrapper) {
4144 /* Already searched at the start */
4146 MonoMethodSignature *tmp_sig;
4148 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4149 GHashTable **cache_table = NULL;
4151 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4152 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4154 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4156 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4157 (GCompareFunc)runtime_invoke_signature_equal);
4159 /* from mono_marshal_find_in_cache */
4160 mono_marshal_lock ();
4161 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4162 mono_marshal_unlock ();
4169 /* Make a copy of the signature from the image mempool */
4171 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4175 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4177 csig->ret = &mono_defaults.object_class->byval_arg;
4178 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4179 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4181 csig->params [0] = &mono_defaults.object_class->byval_arg;
4182 csig->params [1] = &mono_defaults.int_class->byval_arg;
4183 csig->params [2] = &mono_defaults.int_class->byval_arg;
4184 csig->params [3] = &mono_defaults.int_class->byval_arg;
4187 /* This is called from runtime code so it has to be cdecl */
4188 csig->call_convention = MONO_CALL_C;
4191 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4192 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4196 param_names [0] = "this";
4197 param_names [1] = "params";
4198 param_names [2] = "exc";
4199 param_names [3] = "method";
4200 mono_mb_set_param_names (mb, param_names);
4202 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4205 if (need_direct_wrapper) {
4207 mb->skip_visibility = 1;
4209 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4210 info->d.runtime_invoke.method = method;
4211 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4213 /* taken from mono_mb_create_and_cache */
4214 mono_marshal_lock ();
4215 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4216 mono_marshal_unlock ();
4218 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4219 info->d.runtime_invoke.sig = callsig;
4221 /* Somebody may have created it before us */
4224 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4226 mono_marshal_lock ();
4227 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4229 GHashTable *direct_cache;
4231 g_hash_table_insert (cache, callsig, res);
4232 /* Can't insert it into wrapper_hash since the key is a signature */
4233 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4235 g_hash_table_insert (direct_cache, method, res);
4237 mono_free_method (newm);
4239 mono_marshal_unlock ();
4242 /* end mono_mb_create_and_cache */
4251 * mono_marshal_get_runtime_invoke_dynamic:
4253 * Return a method which can be used to invoke managed methods from native code
4255 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4256 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4257 * ARGS should point to an architecture specific structure containing
4258 * the arguments and space for the return value.
4259 * The other arguments are the same as for runtime_invoke (), except that
4260 * ARGS should contain the this argument too.
4261 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4262 * is only one copy of it, which is useful in full-aot.
4265 mono_marshal_get_runtime_invoke_dynamic (void)
4267 static MonoMethod *method;
4268 MonoMethodSignature *csig;
4269 MonoExceptionClause *clause;
4270 MonoMethodBuilder *mb;
4278 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4280 csig->ret = &mono_defaults.void_class->byval_arg;
4281 csig->params [0] = &mono_defaults.int_class->byval_arg;
4282 csig->params [1] = &mono_defaults.int_class->byval_arg;
4283 csig->params [2] = &mono_defaults.int_class->byval_arg;
4284 csig->params [3] = &mono_defaults.int_class->byval_arg;
4286 name = g_strdup ("runtime_invoke_dynamic");
4287 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4291 /* allocate local 0 (object) tmp */
4292 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4293 /* allocate local 1 (object) exc */
4294 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4296 /* cond set *exc to null */
4297 mono_mb_emit_byte (mb, CEE_LDARG_1);
4298 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4299 mono_mb_emit_byte (mb, 3);
4300 mono_mb_emit_byte (mb, CEE_LDARG_1);
4301 mono_mb_emit_byte (mb, CEE_LDNULL);
4302 mono_mb_emit_byte (mb, CEE_STIND_REF);
4304 emit_thread_force_interrupt_checkpoint (mb);
4306 mono_mb_emit_byte (mb, CEE_LDARG_0);
4307 mono_mb_emit_byte (mb, CEE_LDARG_2);
4308 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4309 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4311 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4313 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4314 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4315 clause->try_len = mono_mb_get_label (mb);
4318 clause->data.filter_offset = mono_mb_get_label (mb);
4320 mono_mb_emit_byte (mb, CEE_POP);
4321 mono_mb_emit_byte (mb, CEE_LDARG_1);
4322 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4323 mono_mb_emit_byte (mb, CEE_PREFIX1);
4324 mono_mb_emit_byte (mb, CEE_CGT_UN);
4325 mono_mb_emit_byte (mb, CEE_PREFIX1);
4326 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4328 clause->handler_offset = mono_mb_get_label (mb);
4331 /* store exception */
4332 mono_mb_emit_stloc (mb, 1);
4334 mono_mb_emit_byte (mb, CEE_LDARG_1);
4335 mono_mb_emit_ldloc (mb, 1);
4336 mono_mb_emit_byte (mb, CEE_STIND_REF);
4338 mono_mb_emit_byte (mb, CEE_LDNULL);
4339 mono_mb_emit_stloc (mb, 0);
4341 /* Check for the abort exception */
4342 mono_mb_emit_ldloc (mb, 1);
4343 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4344 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4346 /* Delay the abort exception */
4347 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4349 mono_mb_patch_short_branch (mb, posna);
4350 mono_mb_emit_branch (mb, CEE_LEAVE);
4352 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4354 mono_mb_set_clauses (mb, 1, clause);
4357 mono_mb_patch_branch (mb, pos);
4358 //mono_mb_emit_ldloc (mb, 0);
4359 mono_mb_emit_byte (mb, CEE_RET);
4360 #endif /* DISABLE_JIT */
4362 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4364 mono_marshal_lock ();
4365 /* double-checked locking */
4367 method = mono_mb_create (mb, csig, 16, info);
4369 mono_marshal_unlock ();
4377 * mono_marshal_get_runtime_invoke_for_sig:
4379 * Return a runtime invoke wrapper for a given signature.
4382 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4384 MonoMethodSignature *csig, *callsig;
4385 MonoMethodBuilder *mb;
4387 GHashTable *cache = NULL;
4388 GHashTable **cache_table = NULL;
4389 MonoMethod *res = NULL;
4391 const char *param_names [16];
4394 /* A simplified version of mono_marshal_get_runtime_invoke */
4396 image = mono_defaults.corlib;
4398 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4400 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4402 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4403 (GCompareFunc)runtime_invoke_signature_equal);
4405 /* from mono_marshal_find_in_cache */
4406 mono_marshal_lock ();
4407 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4408 mono_marshal_unlock ();
4415 /* Make a copy of the signature from the image mempool */
4416 callsig = mono_metadata_signature_dup_full (image, callsig);
4418 csig = mono_metadata_signature_alloc (image, 4);
4419 csig->ret = &mono_defaults.object_class->byval_arg;
4420 csig->params [0] = &mono_defaults.object_class->byval_arg;
4421 csig->params [1] = &mono_defaults.int_class->byval_arg;
4422 csig->params [2] = &mono_defaults.int_class->byval_arg;
4423 csig->params [3] = &mono_defaults.int_class->byval_arg;
4426 /* This is called from runtime code so it has to be cdecl */
4427 csig->call_convention = MONO_CALL_C;
4430 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4431 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4435 param_names [0] = "this";
4436 param_names [1] = "params";
4437 param_names [2] = "exc";
4438 param_names [3] = "method";
4439 mono_mb_set_param_names (mb, param_names);
4441 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4444 /* taken from mono_mb_create_and_cache */
4445 mono_marshal_lock ();
4446 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4447 mono_marshal_unlock ();
4449 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4450 info->d.runtime_invoke.sig = callsig;
4452 /* Somebody may have created it before us */
4455 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4457 mono_marshal_lock ();
4458 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4461 g_hash_table_insert (cache, callsig, res);
4463 mono_free_method (newm);
4465 mono_marshal_unlock ();
4468 /* end mono_mb_create_and_cache */
4477 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4479 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4480 klass->name_space, klass->name);
4482 mono_mb_emit_exception_marshal_directive (mb, msg);
4487 * generates IL code for the icall wrapper (the generated method
4488 * calls the unmanaged code in func)
4491 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4493 MonoMethodSignature *csig, *csig2;
4494 MonoMethodBuilder *mb;
4499 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4500 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4503 g_assert (sig->pinvoke);
4505 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4507 mb->method->save_lmf = 1;
4509 /* Add an explicit this argument */
4511 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4513 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4517 mono_mb_emit_byte (mb, CEE_LDARG_0);
4519 for (i = 0; i < sig->param_count; i++)
4520 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4522 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4523 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4524 mono_mb_emit_calli (mb, csig2);
4525 if (check_exceptions)
4526 emit_thread_interrupt_checkpoint (mb);
4527 mono_mb_emit_byte (mb, CEE_RET);
4530 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4532 if (csig->call_convention == MONO_CALL_VARARG)
4533 csig->call_convention = 0;
4535 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4536 info->d.icall.func = (gpointer)func;
4537 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4544 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4545 MonoMarshalSpec *spec,
4546 int conv_arg, MonoType **conv_arg_type,
4547 MarshalAction action)
4550 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4551 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4557 static MonoClass *ICustomMarshaler = NULL;
4558 static MonoMethod *cleanup_native, *cleanup_managed;
4559 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4560 MonoMethod *get_instance = NULL;
4561 MonoMethodBuilder *mb = m->mb;
4562 char *exception_msg = NULL;
4566 if (!ICustomMarshaler) {
4567 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4569 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4570 goto handle_exception;
4573 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4574 g_assert (cleanup_native);
4575 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4576 g_assert (cleanup_managed);
4577 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4578 g_assert (marshal_managed_to_native);
4579 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4580 g_assert (marshal_native_to_managed);
4582 mono_memory_barrier ();
4583 ICustomMarshaler = klass;
4586 if (spec->data.custom_data.image)
4587 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4589 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4590 g_assert (mtype != NULL);
4591 mono_error_assert_ok (&error);
4592 mklass = mono_class_from_mono_type (mtype);
4593 g_assert (mklass != NULL);
4595 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4596 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4598 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4600 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4601 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4602 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4603 (get_sig->params [0]->type != MONO_TYPE_STRING))
4604 get_instance = NULL;
4608 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);
4611 /* Throw exception and emit compensation code if neccesary */
4612 if (exception_msg) {
4614 case MARSHAL_ACTION_CONV_IN:
4615 case MARSHAL_ACTION_CONV_RESULT:
4616 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4617 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4618 mono_mb_emit_byte (mb, CEE_POP);
4620 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4621 g_free (exception_msg);
4624 case MARSHAL_ACTION_PUSH:
4625 mono_mb_emit_byte (mb, CEE_LDNULL);
4633 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4634 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4637 case MARSHAL_ACTION_CONV_IN:
4639 case MONO_TYPE_CLASS:
4640 case MONO_TYPE_OBJECT:
4641 case MONO_TYPE_STRING:
4642 case MONO_TYPE_ARRAY:
4643 case MONO_TYPE_SZARRAY:
4644 case MONO_TYPE_VALUETYPE:
4648 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4649 g_assert_not_reached ();
4653 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4655 mono_mb_emit_byte (mb, CEE_LDNULL);
4656 mono_mb_emit_stloc (mb, conv_arg);
4658 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4661 /* Minic MS.NET behavior */
4662 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4665 /* Check for null */
4666 mono_mb_emit_ldarg (mb, argnum);
4668 mono_mb_emit_byte (mb, CEE_LDIND_I);
4669 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4671 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4673 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4675 mono_mb_emit_ldarg (mb, argnum);
4677 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4679 if (t->type == MONO_TYPE_VALUETYPE) {
4681 * Since we can't determine the type of the argument, we
4682 * will assume the unmanaged function takes a pointer.
4684 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4686 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4689 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4690 mono_mb_emit_stloc (mb, conv_arg);
4692 mono_mb_patch_branch (mb, pos2);
4695 case MARSHAL_ACTION_CONV_OUT:
4696 /* Check for null */
4697 mono_mb_emit_ldloc (mb, conv_arg);
4698 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4701 mono_mb_emit_ldarg (mb, argnum);
4703 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4705 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4707 mono_mb_emit_ldloc (mb, conv_arg);
4708 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4709 mono_mb_emit_byte (mb, CEE_STIND_REF);
4710 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4711 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4713 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4715 mono_mb_emit_ldloc (mb, conv_arg);
4716 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4718 /* We have nowhere to store the result */
4719 mono_mb_emit_byte (mb, CEE_POP);
4722 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4724 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4726 mono_mb_emit_ldloc (mb, conv_arg);
4728 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4730 mono_mb_patch_branch (mb, pos2);
4733 case MARSHAL_ACTION_PUSH:
4735 mono_mb_emit_ldloc_addr (mb, conv_arg);
4737 mono_mb_emit_ldloc (mb, conv_arg);
4740 case MARSHAL_ACTION_CONV_RESULT:
4741 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4743 mono_mb_emit_stloc (mb, 3);
4745 mono_mb_emit_ldloc (mb, 3);
4746 mono_mb_emit_stloc (mb, loc1);
4748 /* Check for null */
4749 mono_mb_emit_ldloc (mb, 3);
4750 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4752 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4754 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4755 mono_mb_emit_byte (mb, CEE_DUP);
4757 mono_mb_emit_ldloc (mb, 3);
4758 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4759 mono_mb_emit_stloc (mb, 3);
4761 mono_mb_emit_ldloc (mb, loc1);
4762 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4764 mono_mb_patch_branch (mb, pos2);
4767 case MARSHAL_ACTION_MANAGED_CONV_IN:
4768 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4770 mono_mb_emit_byte (mb, CEE_LDNULL);
4771 mono_mb_emit_stloc (mb, conv_arg);
4773 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4776 /* Check for null */
4777 mono_mb_emit_ldarg (mb, argnum);
4779 mono_mb_emit_byte (mb, CEE_LDIND_I);
4780 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4782 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4783 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4785 mono_mb_emit_ldarg (mb, argnum);
4787 mono_mb_emit_byte (mb, CEE_LDIND_I);
4789 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4790 mono_mb_emit_stloc (mb, conv_arg);
4792 mono_mb_patch_branch (mb, pos2);
4795 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4796 g_assert (!t->byref);
4798 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4800 mono_mb_emit_stloc (mb, 3);
4802 mono_mb_emit_ldloc (mb, 3);
4803 mono_mb_emit_stloc (mb, loc1);
4805 /* Check for null */
4806 mono_mb_emit_ldloc (mb, 3);
4807 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4809 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4810 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4811 mono_mb_emit_byte (mb, CEE_DUP);
4813 mono_mb_emit_ldloc (mb, 3);
4814 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4815 mono_mb_emit_stloc (mb, 3);
4817 mono_mb_emit_ldloc (mb, loc1);
4818 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4820 mono_mb_patch_branch (mb, pos2);
4823 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4825 /* Check for null */
4826 mono_mb_emit_ldloc (mb, conv_arg);
4827 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4830 mono_mb_emit_ldarg (mb, argnum);
4832 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4834 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4836 mono_mb_emit_ldloc (mb, conv_arg);
4837 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4838 mono_mb_emit_byte (mb, CEE_STIND_I);
4841 /* Call CleanUpManagedData */
4842 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4844 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4846 mono_mb_emit_ldloc (mb, conv_arg);
4847 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4849 mono_mb_patch_branch (mb, pos2);
4853 g_assert_not_reached ();
4861 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4862 MonoMarshalSpec *spec,
4863 int conv_arg, MonoType **conv_arg_type,
4864 MarshalAction action)
4867 MonoMethodBuilder *mb = m->mb;
4870 case MARSHAL_ACTION_CONV_IN: {
4871 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4873 g_assert (t->type == MONO_TYPE_OBJECT);
4874 g_assert (!t->byref);
4876 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4877 mono_mb_emit_ldarg (mb, argnum);
4878 mono_mb_emit_icon (mb, encoding);
4879 mono_mb_emit_icon (mb, t->attrs);
4880 mono_mb_emit_icall (mb, mono_marshal_asany);
4881 mono_mb_emit_stloc (mb, conv_arg);
4885 case MARSHAL_ACTION_PUSH:
4886 mono_mb_emit_ldloc (mb, conv_arg);
4889 case MARSHAL_ACTION_CONV_OUT: {
4890 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4892 mono_mb_emit_ldarg (mb, argnum);
4893 mono_mb_emit_ldloc (mb, conv_arg);
4894 mono_mb_emit_icon (mb, encoding);
4895 mono_mb_emit_icon (mb, t->attrs);
4896 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4901 g_assert_not_reached ();
4908 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4909 MonoMarshalSpec *spec,
4910 int conv_arg, MonoType **conv_arg_type,
4911 MarshalAction action)
4914 MonoMethodBuilder *mb = m->mb;
4915 MonoClass *klass, *date_time_class;
4918 klass = mono_class_from_mono_type (t);
4920 date_time_class = mono_class_get_date_time_class ();
4923 case MARSHAL_ACTION_CONV_IN:
4924 if (klass == date_time_class) {
4925 /* Convert it to an OLE DATE type */
4926 static MonoMethod *to_oadate;
4929 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4930 g_assert (to_oadate);
4932 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4935 mono_mb_emit_ldarg (mb, argnum);
4936 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4939 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4941 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4943 mono_mb_emit_ldarg_addr (mb, argnum);
4944 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4945 mono_mb_emit_stloc (mb, conv_arg);
4949 mono_mb_patch_branch (mb, pos);
4953 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
4956 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4958 /* store the address of the source into local variable 0 */
4960 mono_mb_emit_ldarg (mb, argnum);
4962 mono_mb_emit_ldarg_addr (mb, argnum);
4964 mono_mb_emit_stloc (mb, 0);
4966 /* allocate space for the native struct and
4967 * store the address into local variable 1 (dest) */
4968 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4969 mono_mb_emit_byte (mb, CEE_PREFIX1);
4970 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4971 mono_mb_emit_stloc (mb, conv_arg);
4974 mono_mb_emit_ldloc (mb, 0);
4975 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4978 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4980 mono_mb_emit_ldloc (mb, conv_arg);
4981 mono_mb_emit_stloc (mb, 1);
4983 /* emit valuetype conversion code */
4984 emit_struct_conv (mb, klass, FALSE);
4988 mono_mb_patch_branch (mb, pos);
4991 case MARSHAL_ACTION_PUSH:
4992 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4994 g_assert (!t->byref);
4996 /* Have to change the signature since the vtype is passed byref */
4997 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4999 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5000 mono_mb_emit_ldarg_addr (mb, argnum);
5002 mono_mb_emit_ldloc (mb, conv_arg);
5006 if (klass == date_time_class) {
5008 mono_mb_emit_ldloc_addr (mb, conv_arg);
5010 mono_mb_emit_ldloc (mb, conv_arg);
5014 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5015 mono_mb_emit_ldarg (mb, argnum);
5018 mono_mb_emit_ldloc (mb, conv_arg);
5020 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5021 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5025 case MARSHAL_ACTION_CONV_OUT:
5026 if (klass == date_time_class) {
5027 /* Convert from an OLE DATE type */
5028 static MonoMethod *from_oadate;
5033 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5035 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5036 g_assert (from_oadate);
5038 mono_mb_emit_ldarg (mb, argnum);
5039 mono_mb_emit_ldloc (mb, conv_arg);
5040 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5041 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5046 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5050 /* dst = argument */
5051 mono_mb_emit_ldarg (mb, argnum);
5052 mono_mb_emit_stloc (mb, 1);
5054 mono_mb_emit_ldloc (mb, 1);
5055 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5057 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5058 /* src = tmp_locals [i] */
5059 mono_mb_emit_ldloc (mb, conv_arg);
5060 mono_mb_emit_stloc (mb, 0);
5062 /* emit valuetype conversion code */
5063 emit_struct_conv (mb, klass, TRUE);
5067 emit_struct_free (mb, klass, conv_arg);
5070 mono_mb_patch_branch (mb, pos);
5073 case MARSHAL_ACTION_CONV_RESULT:
5074 if (mono_class_is_explicit_layout (klass) || klass->blittable) {
5075 mono_mb_emit_stloc (mb, 3);
5079 /* load pointer to returned value type */
5080 g_assert (m->vtaddr_var);
5081 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5082 /* store the address of the source into local variable 0 */
5083 mono_mb_emit_stloc (mb, 0);
5085 mono_mb_emit_ldloc_addr (mb, 3);
5086 mono_mb_emit_stloc (mb, 1);
5088 /* emit valuetype conversion code */
5089 emit_struct_conv (mb, klass, TRUE);
5092 case MARSHAL_ACTION_MANAGED_CONV_IN:
5093 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5098 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5100 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5104 mono_mb_emit_ldarg (mb, argnum);
5106 mono_mb_emit_ldarg_addr (mb, argnum);
5107 mono_mb_emit_stloc (mb, 0);
5110 mono_mb_emit_ldloc (mb, 0);
5111 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5114 mono_mb_emit_ldloc_addr (mb, conv_arg);
5115 mono_mb_emit_stloc (mb, 1);
5117 /* emit valuetype conversion code */
5118 emit_struct_conv (mb, klass, TRUE);
5121 mono_mb_patch_branch (mb, pos);
5124 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5125 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5127 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5130 /* Check for null */
5131 mono_mb_emit_ldarg (mb, argnum);
5132 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5135 mono_mb_emit_ldloc_addr (mb, conv_arg);
5136 mono_mb_emit_stloc (mb, 0);
5139 mono_mb_emit_ldarg (mb, argnum);
5140 mono_mb_emit_stloc (mb, 1);
5142 /* emit valuetype conversion code */
5143 emit_struct_conv (mb, klass, FALSE);
5145 mono_mb_patch_branch (mb, pos2);
5148 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5149 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5150 mono_mb_emit_stloc (mb, 3);
5155 /* load pointer to returned value type */
5156 g_assert (m->vtaddr_var);
5157 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5159 /* store the address of the source into local variable 0 */
5160 mono_mb_emit_stloc (mb, 0);
5161 /* allocate space for the native struct and
5162 * store the address into dst_ptr */
5163 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5164 m->retobj_class = klass;
5165 g_assert (m->retobj_var);
5166 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5167 mono_mb_emit_byte (mb, CEE_CONV_I);
5168 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5169 mono_mb_emit_stloc (mb, 1);
5170 mono_mb_emit_ldloc (mb, 1);
5171 mono_mb_emit_stloc (mb, m->retobj_var);
5173 /* emit valuetype conversion code */
5174 emit_struct_conv (mb, klass, FALSE);
5178 g_assert_not_reached ();
5185 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5186 MonoMarshalSpec *spec,
5187 int conv_arg, MonoType **conv_arg_type,
5188 MarshalAction action)
5192 case MARSHAL_ACTION_CONV_IN:
5193 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5195 case MARSHAL_ACTION_MANAGED_CONV_IN:
5196 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5200 MonoMethodBuilder *mb = m->mb;
5201 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5202 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5206 case MARSHAL_ACTION_CONV_IN:
5207 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5208 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5211 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5214 mono_mb_emit_ldarg (mb, argnum);
5215 mono_mb_emit_byte (mb, CEE_LDIND_I);
5217 mono_mb_emit_ldarg (mb, argnum);
5220 if (conv == MONO_MARSHAL_CONV_INVALID) {
5221 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5222 mono_mb_emit_exception_marshal_directive (mb, msg);
5224 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5226 mono_mb_emit_stloc (mb, conv_arg);
5230 case MARSHAL_ACTION_CONV_OUT:
5231 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5232 if (conv == MONO_MARSHAL_CONV_INVALID) {
5233 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5234 mono_mb_emit_exception_marshal_directive (mb, msg);
5238 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5239 static MonoMethod *m;
5242 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5247 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5248 mono_mb_emit_exception_marshal_directive (mb, msg);
5253 * Have to allocate a new string with the same length as the original, and
5254 * copy the contents of the buffer pointed to by CONV_ARG into it.
5256 g_assert (t->byref);
5257 mono_mb_emit_ldarg (mb, argnum);
5258 mono_mb_emit_ldloc (mb, conv_arg);
5259 mono_mb_emit_ldarg (mb, argnum);
5260 mono_mb_emit_byte (mb, CEE_LDIND_I);
5261 mono_mb_emit_managed_call (mb, m, NULL);
5262 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5263 mono_mb_emit_byte (mb, CEE_STIND_REF);
5264 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5266 mono_mb_emit_ldarg (mb, argnum);
5267 mono_mb_emit_ldloc (mb, conv_arg);
5268 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5269 mono_mb_emit_byte (mb, stind_op);
5274 mono_mb_emit_ldloc (mb, conv_arg);
5275 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5276 mono_mb_emit_icall (mb, mono_free_bstr);
5278 mono_mb_emit_icall (mb, mono_marshal_free);
5282 case MARSHAL_ACTION_PUSH:
5283 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5284 mono_mb_emit_ldloc_addr (mb, conv_arg);
5286 mono_mb_emit_ldloc (mb, conv_arg);
5289 case MARSHAL_ACTION_CONV_RESULT:
5290 mono_mb_emit_stloc (mb, 0);
5292 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5293 if (conv == MONO_MARSHAL_CONV_INVALID) {
5294 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5295 mono_mb_emit_exception_marshal_directive (mb, msg);
5299 mono_mb_emit_ldloc (mb, 0);
5300 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5301 mono_mb_emit_stloc (mb, 3);
5303 /* free the string */
5304 mono_mb_emit_ldloc (mb, 0);
5305 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5306 mono_mb_emit_icall (mb, mono_free_bstr);
5308 mono_mb_emit_icall (mb, mono_marshal_free);
5311 case MARSHAL_ACTION_MANAGED_CONV_IN:
5312 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5314 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5317 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5321 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5322 if (conv == MONO_MARSHAL_CONV_INVALID) {
5323 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5324 mono_mb_emit_exception_marshal_directive (mb, msg);
5328 mono_mb_emit_ldarg (mb, argnum);
5330 mono_mb_emit_byte (mb, CEE_LDIND_I);
5331 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5332 mono_mb_emit_stloc (mb, conv_arg);
5335 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5339 mono_mb_emit_ldarg (mb, argnum);
5340 mono_mb_emit_ldloc (mb, conv_arg);
5341 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5342 mono_mb_emit_byte (mb, stind_op);
5347 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5348 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5349 /* We need to make a copy so the caller is able to free it */
5350 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5352 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5353 mono_mb_emit_stloc (mb, 3);
5357 g_assert_not_reached ();
5365 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5366 MonoMarshalSpec *spec, int conv_arg,
5367 MonoType **conv_arg_type, MarshalAction action)
5370 if (action == MARSHAL_ACTION_CONV_IN)
5371 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5373 MonoMethodBuilder *mb = m->mb;
5376 case MARSHAL_ACTION_CONV_IN: {
5377 MonoType *intptr_type;
5378 int dar_release_slot, pos;
5380 intptr_type = &mono_defaults.int_class->byval_arg;
5381 conv_arg = mono_mb_add_local (mb, intptr_type);
5382 *conv_arg_type = intptr_type;
5384 if (!sh_dangerous_add_ref)
5385 init_safe_handle ();
5387 mono_mb_emit_ldarg (mb, argnum);
5388 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5389 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5391 mono_mb_patch_branch (mb, pos);
5394 * My tests in show that ref SafeHandles are not really
5395 * passed as ref objects. Instead a NULL is passed as the
5398 mono_mb_emit_icon (mb, 0);
5399 mono_mb_emit_stloc (mb, conv_arg);
5403 /* Create local to hold the ref parameter to DangerousAddRef */
5404 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5406 /* set release = false; */
5407 mono_mb_emit_icon (mb, 0);
5408 mono_mb_emit_stloc (mb, dar_release_slot);
5410 /* safehandle.DangerousAddRef (ref release) */
5411 mono_mb_emit_ldarg (mb, argnum);
5412 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5413 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5415 /* Pull the handle field from SafeHandle */
5416 mono_mb_emit_ldarg (mb, argnum);
5417 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5418 mono_mb_emit_byte (mb, CEE_LDIND_I);
5419 mono_mb_emit_stloc (mb, conv_arg);
5424 case MARSHAL_ACTION_PUSH:
5426 mono_mb_emit_ldloc_addr (mb, conv_arg);
5428 mono_mb_emit_ldloc (mb, conv_arg);
5431 case MARSHAL_ACTION_CONV_OUT: {
5432 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5433 int dar_release_slot = conv_arg + 1;
5436 if (!sh_dangerous_release)
5437 init_safe_handle ();
5443 * My tests indicate that ref SafeHandles parameters are not actually
5444 * passed by ref, but instead a new Handle is created regardless of
5445 * whether a change happens in the unmanaged side.
5447 * Also, the Handle is created before calling into unmanaged code,
5448 * but we do not support that mechanism (getting to the original
5449 * handle) and it makes no difference where we create this
5451 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5453 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5456 /* refval = new SafeHandleDerived ()*/
5457 mono_mb_emit_ldarg (mb, argnum);
5458 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5459 mono_mb_emit_byte (mb, CEE_STIND_REF);
5461 /* refval.handle = returned_handle */
5462 mono_mb_emit_ldarg (mb, argnum);
5463 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5464 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5465 mono_mb_emit_ldloc (mb, conv_arg);
5466 mono_mb_emit_byte (mb, CEE_STIND_I);
5468 mono_mb_emit_ldloc (mb, dar_release_slot);
5469 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5470 mono_mb_emit_ldarg (mb, argnum);
5471 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5472 mono_mb_patch_branch (mb, label_next);
5477 case MARSHAL_ACTION_CONV_RESULT: {
5478 MonoMethod *ctor = NULL;
5479 int intptr_handle_slot;
5481 if (mono_class_is_abstract (t->data.klass)) {
5482 mono_mb_emit_byte (mb, CEE_POP);
5483 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5487 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5489 mono_mb_emit_byte (mb, CEE_POP);
5490 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5493 /* Store the IntPtr results into a local */
5494 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5495 mono_mb_emit_stloc (mb, intptr_handle_slot);
5497 /* Create return value */
5498 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5499 mono_mb_emit_stloc (mb, 3);
5501 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5502 mono_mb_emit_ldloc (mb, 3);
5503 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5504 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5505 mono_mb_emit_byte (mb, CEE_STIND_I);
5509 case MARSHAL_ACTION_MANAGED_CONV_IN:
5510 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5513 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5514 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5517 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5518 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5521 printf ("Unhandled case for MarshalAction: %d\n", action);
5529 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5530 MonoMarshalSpec *spec, int conv_arg,
5531 MonoType **conv_arg_type, MarshalAction action)
5534 if (action == MARSHAL_ACTION_CONV_IN)
5535 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5537 MonoMethodBuilder *mb = m->mb;
5540 case MARSHAL_ACTION_CONV_IN: {
5541 MonoType *intptr_type;
5543 intptr_type = &mono_defaults.int_class->byval_arg;
5544 conv_arg = mono_mb_add_local (mb, intptr_type);
5545 *conv_arg_type = intptr_type;
5548 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5549 mono_mb_emit_exception_marshal_directive (mb, msg);
5552 mono_mb_emit_ldarg_addr (mb, argnum);
5553 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5554 mono_mb_emit_byte (mb, CEE_ADD);
5555 mono_mb_emit_byte (mb, CEE_LDIND_I);
5556 mono_mb_emit_stloc (mb, conv_arg);
5560 case MARSHAL_ACTION_PUSH:
5561 mono_mb_emit_ldloc (mb, conv_arg);
5564 case MARSHAL_ACTION_CONV_OUT: {
5565 /* no resource release required */
5569 case MARSHAL_ACTION_CONV_RESULT: {
5570 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5571 mono_mb_emit_exception_marshal_directive (mb, msg);
5575 case MARSHAL_ACTION_MANAGED_CONV_IN:
5576 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5579 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5580 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5583 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5584 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5587 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5595 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5596 MonoMarshalSpec *spec,
5597 int conv_arg, MonoType **conv_arg_type,
5598 MarshalAction action)
5601 if (action == MARSHAL_ACTION_CONV_IN)
5602 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5604 MonoMethodBuilder *mb = m->mb;
5605 MonoClass *klass = mono_class_from_mono_type (t);
5609 case MARSHAL_ACTION_CONV_IN:
5610 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5611 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5613 m->orig_conv_args [argnum] = 0;
5615 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5616 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5617 mono_mb_emit_exception_marshal_directive (mb, msg);
5621 if (klass->delegate) {
5623 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5624 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5625 mono_mb_emit_exception_marshal_directive (mb, msg);
5627 mono_mb_emit_byte (mb, CEE_LDNULL);
5628 mono_mb_emit_stloc (mb, conv_arg);
5630 mono_mb_emit_ldarg (mb, argnum);
5631 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5632 mono_mb_emit_stloc (mb, conv_arg);
5634 } else if (klass == mono_defaults.stringbuilder_class) {
5635 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5636 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5640 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5641 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5642 mono_mb_emit_exception_marshal_directive (mb, msg);
5648 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5651 if (conv == MONO_MARSHAL_CONV_INVALID) {
5652 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5653 mono_mb_emit_exception_marshal_directive (mb, msg);
5657 mono_mb_emit_ldarg (mb, argnum);
5659 mono_mb_emit_byte (mb, CEE_LDIND_I);
5661 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5662 mono_mb_emit_stloc (mb, conv_arg);
5663 } else if (klass->blittable) {
5664 mono_mb_emit_byte (mb, CEE_LDNULL);
5665 mono_mb_emit_stloc (mb, conv_arg);
5667 mono_mb_emit_ldarg (mb, argnum);
5668 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5670 mono_mb_emit_ldarg (mb, argnum);
5671 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5672 mono_mb_emit_stloc (mb, conv_arg);
5674 mono_mb_patch_branch (mb, pos);
5677 mono_mb_emit_byte (mb, CEE_LDNULL);
5678 mono_mb_emit_stloc (mb, conv_arg);
5681 /* we dont need any conversions for out parameters */
5682 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5685 mono_mb_emit_ldarg (mb, argnum);
5686 mono_mb_emit_byte (mb, CEE_LDIND_I);
5689 mono_mb_emit_ldarg (mb, argnum);
5690 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5691 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5694 /* store the address of the source into local variable 0 */
5695 mono_mb_emit_stloc (mb, 0);
5696 mono_mb_emit_ldloc (mb, 0);
5697 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5699 /* allocate space for the native struct and store the address */
5700 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5701 mono_mb_emit_byte (mb, CEE_PREFIX1);
5702 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5703 mono_mb_emit_stloc (mb, conv_arg);
5706 /* Need to store the original buffer so we can free it later */
5707 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5708 mono_mb_emit_ldloc (mb, conv_arg);
5709 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5712 /* set the src_ptr */
5713 mono_mb_emit_ldloc (mb, 0);
5714 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5715 mono_mb_emit_stloc (mb, 0);
5718 mono_mb_emit_ldloc (mb, conv_arg);
5719 mono_mb_emit_stloc (mb, 1);
5721 /* emit valuetype conversion code */
5722 emit_struct_conv (mb, klass, FALSE);
5724 mono_mb_patch_branch (mb, pos);
5728 case MARSHAL_ACTION_CONV_OUT:
5729 if (klass == mono_defaults.stringbuilder_class) {
5731 MonoMarshalNative encoding;
5732 MonoMarshalConv conv;
5734 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5735 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5737 g_assert (encoding != -1);
5740 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5744 mono_mb_emit_ldarg (mb, argnum);
5745 mono_mb_emit_ldloc (mb, conv_arg);
5748 case MONO_NATIVE_LPWSTR:
5749 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5751 case MONO_NATIVE_LPSTR:
5752 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5754 case MONO_NATIVE_UTF8STR:
5755 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5758 g_assert_not_reached ();
5761 mono_mb_emit_byte (mb, CEE_STIND_REF);
5763 mono_mb_emit_ldarg (mb, argnum);
5764 mono_mb_emit_ldloc (mb, conv_arg);
5766 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5770 mono_mb_emit_ldloc (mb, conv_arg);
5771 mono_mb_emit_icall (mb, mono_marshal_free);
5776 if (klass->delegate) {
5778 mono_mb_emit_ldarg (mb, argnum);
5779 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5780 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5781 mono_mb_emit_ldloc (mb, conv_arg);
5782 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5783 mono_mb_emit_byte (mb, CEE_STIND_REF);
5788 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5789 /* allocate a new object */
5790 mono_mb_emit_ldarg (mb, argnum);
5791 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5792 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5793 mono_mb_emit_byte (mb, CEE_STIND_REF);
5796 /* dst = *argument */
5797 mono_mb_emit_ldarg (mb, argnum);
5800 mono_mb_emit_byte (mb, CEE_LDIND_I);
5802 mono_mb_emit_stloc (mb, 1);
5804 mono_mb_emit_ldloc (mb, 1);
5805 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5807 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5808 mono_mb_emit_ldloc (mb, 1);
5809 mono_mb_emit_icon (mb, sizeof (MonoObject));
5810 mono_mb_emit_byte (mb, CEE_ADD);
5811 mono_mb_emit_stloc (mb, 1);
5813 /* src = tmp_locals [i] */
5814 mono_mb_emit_ldloc (mb, conv_arg);
5815 mono_mb_emit_stloc (mb, 0);
5817 /* emit valuetype conversion code */
5818 emit_struct_conv (mb, klass, TRUE);
5820 /* Free the structure returned by the native code */
5821 emit_struct_free (mb, klass, conv_arg);
5823 if (m->orig_conv_args [argnum]) {
5825 * If the native function changed the pointer, then free
5826 * the original structure plus the new pointer.
5828 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5829 mono_mb_emit_ldloc (mb, conv_arg);
5830 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5832 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5833 g_assert (m->orig_conv_args [argnum]);
5835 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5838 mono_mb_emit_ldloc (mb, conv_arg);
5839 mono_mb_emit_icall (mb, mono_marshal_free);
5841 mono_mb_patch_branch (mb, pos2);
5845 /* Free the original structure passed to native code */
5846 emit_struct_free (mb, klass, conv_arg);
5848 mono_mb_patch_branch (mb, pos);
5851 case MARSHAL_ACTION_PUSH:
5853 mono_mb_emit_ldloc_addr (mb, conv_arg);
5855 mono_mb_emit_ldloc (mb, conv_arg);
5858 case MARSHAL_ACTION_CONV_RESULT:
5859 if (klass->delegate) {
5860 g_assert (!t->byref);
5861 mono_mb_emit_stloc (mb, 0);
5862 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5863 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5864 mono_mb_emit_ldloc (mb, 0);
5865 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5866 mono_mb_emit_stloc (mb, 3);
5867 } else if (klass == mono_defaults.stringbuilder_class){
5871 mono_mb_emit_stloc (mb, 0);
5873 /* Make a copy since emit_conv modifies local 0 */
5874 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5875 mono_mb_emit_ldloc (mb, 0);
5876 mono_mb_emit_stloc (mb, loc);
5878 mono_mb_emit_byte (mb, CEE_LDNULL);
5879 mono_mb_emit_stloc (mb, 3);
5881 mono_mb_emit_ldloc (mb, 0);
5882 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5884 /* allocate result object */
5886 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5887 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5888 mono_mb_emit_stloc (mb, 3);
5892 mono_mb_emit_ldloc (mb, 3);
5893 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5894 mono_mb_emit_stloc (mb, 1);
5896 /* emit conversion code */
5897 emit_struct_conv (mb, klass, TRUE);
5899 emit_struct_free (mb, klass, loc);
5901 /* Free the pointer allocated by unmanaged code */
5902 mono_mb_emit_ldloc (mb, loc);
5903 mono_mb_emit_icall (mb, mono_marshal_free);
5904 mono_mb_patch_branch (mb, pos);
5908 case MARSHAL_ACTION_MANAGED_CONV_IN:
5909 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5911 if (klass->delegate) {
5912 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5913 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5914 mono_mb_emit_ldarg (mb, argnum);
5916 mono_mb_emit_byte (mb, CEE_LDIND_I);
5917 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5918 mono_mb_emit_stloc (mb, conv_arg);
5922 if (klass == mono_defaults.stringbuilder_class) {
5923 MonoMarshalNative encoding;
5925 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5928 g_assert (encoding == MONO_NATIVE_LPSTR || encoding == MONO_NATIVE_UTF8STR);
5930 g_assert (!t->byref);
5931 g_assert (encoding != -1);
5933 mono_mb_emit_ldarg (mb, argnum);
5934 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5935 mono_mb_emit_stloc (mb, conv_arg);
5939 /* The class can not have an automatic layout */
5940 if (mono_class_is_auto_layout (klass)) {
5941 mono_mb_emit_auto_layout_exception (mb, klass);
5945 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5946 mono_mb_emit_byte (mb, CEE_LDNULL);
5947 mono_mb_emit_stloc (mb, conv_arg);
5952 mono_mb_emit_ldarg (mb, argnum);
5956 /* Check for NULL and raise an exception */
5957 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5959 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5961 mono_mb_patch_branch (mb, pos2);
5962 mono_mb_emit_ldarg (mb, argnum);
5963 mono_mb_emit_byte (mb, CEE_LDIND_I);
5966 mono_mb_emit_stloc (mb, 0);
5968 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5969 mono_mb_emit_stloc (mb, conv_arg);
5971 mono_mb_emit_ldloc (mb, 0);
5972 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5974 /* Create and set dst */
5975 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5976 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5977 mono_mb_emit_stloc (mb, conv_arg);
5978 mono_mb_emit_ldloc (mb, conv_arg);
5979 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5980 mono_mb_emit_stloc (mb, 1);
5982 /* emit valuetype conversion code */
5983 emit_struct_conv (mb, klass, TRUE);
5985 mono_mb_patch_branch (mb, pos);
5988 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5989 if (klass->delegate) {
5992 mono_mb_emit_ldarg (mb, argnum);
5993 mono_mb_emit_ldloc (mb, conv_arg);
5994 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5995 mono_mb_emit_byte (mb, stind_op);
6001 /* Check for null */
6002 mono_mb_emit_ldloc (mb, conv_arg);
6003 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6004 mono_mb_emit_ldarg (mb, argnum);
6005 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6006 mono_mb_emit_byte (mb, CEE_STIND_REF);
6007 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6009 mono_mb_patch_branch (mb, pos);
6012 mono_mb_emit_ldloc (mb, conv_arg);
6013 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6014 mono_mb_emit_stloc (mb, 0);
6016 /* Allocate and set dest */
6017 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6018 mono_mb_emit_byte (mb, CEE_CONV_I);
6019 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6020 mono_mb_emit_stloc (mb, 1);
6022 /* Update argument pointer */
6023 mono_mb_emit_ldarg (mb, argnum);
6024 mono_mb_emit_ldloc (mb, 1);
6025 mono_mb_emit_byte (mb, CEE_STIND_I);
6027 /* emit valuetype conversion code */
6028 emit_struct_conv (mb, klass, FALSE);
6030 mono_mb_patch_branch (mb, pos2);
6031 } else if (klass == mono_defaults.stringbuilder_class) {
6032 // FIXME: What to do here ?
6034 /* byval [Out] marshalling */
6036 /* FIXME: Handle null */
6039 mono_mb_emit_ldloc (mb, conv_arg);
6040 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6041 mono_mb_emit_stloc (mb, 0);
6044 mono_mb_emit_ldarg (mb, argnum);
6045 mono_mb_emit_stloc (mb, 1);
6047 /* emit valuetype conversion code */
6048 emit_struct_conv (mb, klass, FALSE);
6052 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6053 if (klass->delegate) {
6054 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6055 mono_mb_emit_stloc (mb, 3);
6059 /* The class can not have an automatic layout */
6060 if (mono_class_is_auto_layout (klass)) {
6061 mono_mb_emit_auto_layout_exception (mb, klass);
6065 mono_mb_emit_stloc (mb, 0);
6066 /* Check for null */
6067 mono_mb_emit_ldloc (mb, 0);
6068 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6069 mono_mb_emit_byte (mb, CEE_LDNULL);
6070 mono_mb_emit_stloc (mb, 3);
6071 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6073 mono_mb_patch_branch (mb, pos);
6076 mono_mb_emit_ldloc (mb, 0);
6077 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6078 mono_mb_emit_stloc (mb, 0);
6080 /* Allocate and set dest */
6081 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6082 mono_mb_emit_byte (mb, CEE_CONV_I);
6083 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6084 mono_mb_emit_byte (mb, CEE_DUP);
6085 mono_mb_emit_stloc (mb, 1);
6086 mono_mb_emit_stloc (mb, 3);
6088 emit_struct_conv (mb, klass, FALSE);
6090 mono_mb_patch_branch (mb, pos2);
6094 g_assert_not_reached ();
6105 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6106 MonoMarshalSpec *spec,
6107 int conv_arg, MonoType **conv_arg_type,
6108 MarshalAction action)
6110 MonoMethodBuilder *mb = m->mb;
6111 static MonoMethod *get_object_for_native_variant = NULL;
6112 static MonoMethod *get_native_variant_for_object = NULL;
6114 if (!get_object_for_native_variant)
6115 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6116 g_assert (get_object_for_native_variant);
6118 if (!get_native_variant_for_object)
6119 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6120 g_assert (get_native_variant_for_object);
6123 case MARSHAL_ACTION_CONV_IN: {
6124 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6127 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6129 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6131 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6134 mono_mb_emit_ldarg (mb, argnum);
6136 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6137 mono_mb_emit_ldloc_addr (mb, conv_arg);
6138 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6142 case MARSHAL_ACTION_CONV_OUT: {
6143 static MonoMethod *variant_clear = NULL;
6146 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6147 g_assert (variant_clear);
6150 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6151 mono_mb_emit_ldarg (mb, argnum);
6152 mono_mb_emit_ldloc_addr (mb, conv_arg);
6153 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6154 mono_mb_emit_byte (mb, CEE_STIND_REF);
6157 mono_mb_emit_ldloc_addr (mb, conv_arg);
6158 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6162 case MARSHAL_ACTION_PUSH:
6164 mono_mb_emit_ldloc_addr (mb, conv_arg);
6166 mono_mb_emit_ldloc (mb, conv_arg);
6169 case MARSHAL_ACTION_CONV_RESULT: {
6170 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6171 mono_mb_emit_exception_marshal_directive (mb, msg);
6175 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6176 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6179 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6181 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6183 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6187 mono_mb_emit_ldarg (mb, argnum);
6189 mono_mb_emit_ldarg_addr (mb, argnum);
6190 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6191 mono_mb_emit_stloc (mb, conv_arg);
6195 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6196 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6197 mono_mb_emit_ldloc (mb, conv_arg);
6198 mono_mb_emit_ldarg (mb, argnum);
6199 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6204 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6205 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6206 mono_mb_emit_exception_marshal_directive (mb, msg);
6211 g_assert_not_reached ();
6217 #endif /* DISABLE_COM */
6218 #endif /* DISABLE_JIT */
6221 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6223 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6224 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6226 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6228 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6240 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6241 MonoMarshalSpec *spec,
6242 int conv_arg, MonoType **conv_arg_type,
6243 MarshalAction action)
6247 case MARSHAL_ACTION_CONV_IN:
6248 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6250 case MARSHAL_ACTION_MANAGED_CONV_IN:
6251 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6255 MonoMethodBuilder *mb = m->mb;
6256 MonoClass *klass = mono_class_from_mono_type (t);
6257 gboolean need_convert, need_free;
6258 MonoMarshalNative encoding;
6260 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6263 case MARSHAL_ACTION_CONV_IN:
6264 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6265 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6267 if (klass->element_class->blittable) {
6268 mono_mb_emit_ldarg (mb, argnum);
6270 mono_mb_emit_byte (mb, CEE_LDIND_I);
6271 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6272 mono_mb_emit_stloc (mb, conv_arg);
6275 guint32 label1, label2, label3;
6276 int index_var, src_var, dest_ptr, esize;
6277 MonoMarshalConv conv;
6278 gboolean is_string = FALSE;
6280 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6282 eklass = klass->element_class;
6284 if (eklass == mono_defaults.string_class) {
6286 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6288 else if (eklass == mono_defaults.stringbuilder_class) {
6290 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6293 conv = MONO_MARSHAL_CONV_INVALID;
6295 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6296 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6297 mono_mb_emit_exception_marshal_directive (mb, msg);
6301 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6302 mono_mb_emit_ldarg (mb, argnum);
6304 mono_mb_emit_byte (mb, CEE_LDIND_I);
6305 mono_mb_emit_stloc (mb, src_var);
6308 mono_mb_emit_ldloc (mb, src_var);
6309 mono_mb_emit_stloc (mb, conv_arg);
6310 mono_mb_emit_ldloc (mb, src_var);
6311 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6314 esize = sizeof (gpointer);
6315 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6316 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6318 esize = mono_class_native_size (eklass, NULL);
6320 /* allocate space for the native struct and store the address */
6321 mono_mb_emit_icon (mb, esize);
6322 mono_mb_emit_ldloc (mb, src_var);
6323 mono_mb_emit_byte (mb, CEE_LDLEN);
6325 if (eklass == mono_defaults.string_class) {
6326 /* Make the array bigger for the terminating null */
6327 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6328 mono_mb_emit_byte (mb, CEE_ADD);
6330 mono_mb_emit_byte (mb, CEE_MUL);
6331 mono_mb_emit_byte (mb, CEE_PREFIX1);
6332 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6333 mono_mb_emit_stloc (mb, conv_arg);
6335 mono_mb_emit_ldloc (mb, conv_arg);
6336 mono_mb_emit_stloc (mb, dest_ptr);
6338 /* Emit marshalling loop */
6339 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6340 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6341 mono_mb_emit_stloc (mb, index_var);
6342 label2 = mono_mb_get_label (mb);
6343 mono_mb_emit_ldloc (mb, index_var);
6344 mono_mb_emit_ldloc (mb, src_var);
6345 mono_mb_emit_byte (mb, CEE_LDLEN);
6346 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6348 /* Emit marshalling code */
6352 mono_mb_emit_ldloc (mb, dest_ptr);
6353 mono_mb_emit_ldloc (mb, src_var);
6354 mono_mb_emit_ldloc (mb, index_var);
6355 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6356 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6357 mono_mb_emit_byte (mb, stind_op);
6359 /* set the src_ptr */
6360 mono_mb_emit_ldloc (mb, src_var);
6361 mono_mb_emit_ldloc (mb, index_var);
6362 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6363 mono_mb_emit_stloc (mb, 0);
6366 mono_mb_emit_ldloc (mb, dest_ptr);
6367 mono_mb_emit_stloc (mb, 1);
6369 /* emit valuetype conversion code */
6370 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6373 mono_mb_emit_add_to_local (mb, index_var, 1);
6374 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6376 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6378 mono_mb_patch_branch (mb, label3);
6380 if (eklass == mono_defaults.string_class) {
6381 /* Null terminate */
6382 mono_mb_emit_ldloc (mb, dest_ptr);
6383 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6384 mono_mb_emit_byte (mb, CEE_STIND_REF);
6387 mono_mb_patch_branch (mb, label1);
6392 case MARSHAL_ACTION_CONV_OUT:
6393 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6394 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);
6395 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6398 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6399 int param_num = spec->data.array_data.param_num;
6400 MonoType *param_type;
6402 param_type = m->sig->params [param_num];
6404 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6405 char *msg = g_strdup ("Not implemented.");
6406 mono_mb_emit_exception_marshal_directive (mb, msg);
6411 mono_mb_emit_ldarg (mb, argnum);
6413 /* Create the managed array */
6414 mono_mb_emit_ldarg (mb, param_num);
6415 if (m->sig->params [param_num]->byref)
6416 // FIXME: Support other types
6417 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6418 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6419 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6420 /* Store into argument */
6421 mono_mb_emit_byte (mb, CEE_STIND_REF);
6425 if (need_convert || need_free) {
6426 /* FIXME: Optimize blittable case */
6428 guint32 label1, label2, label3;
6429 int index_var, src_ptr, loc, esize;
6431 eklass = klass->element_class;
6432 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6433 esize = sizeof (gpointer);
6434 else if (eklass == mono_defaults.char_class)
6435 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6437 esize = mono_class_native_size (eklass, NULL);
6438 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6439 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6442 mono_mb_emit_ldarg (mb, argnum);
6444 mono_mb_emit_byte (mb, CEE_LDIND_I);
6445 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6447 mono_mb_emit_ldloc (mb, conv_arg);
6448 mono_mb_emit_stloc (mb, src_ptr);
6450 /* Emit marshalling loop */
6451 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6452 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6453 mono_mb_emit_stloc (mb, index_var);
6454 label2 = mono_mb_get_label (mb);
6455 mono_mb_emit_ldloc (mb, index_var);
6456 mono_mb_emit_ldarg (mb, argnum);
6458 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6459 mono_mb_emit_byte (mb, CEE_LDLEN);
6460 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6462 /* Emit marshalling code */
6464 if (eklass == mono_defaults.stringbuilder_class) {
6465 gboolean need_free2;
6466 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6468 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6471 mono_mb_emit_ldarg (mb, argnum);
6473 mono_mb_emit_byte (mb, CEE_LDIND_I);
6474 mono_mb_emit_ldloc (mb, index_var);
6475 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6478 mono_mb_emit_ldloc (mb, src_ptr);
6479 mono_mb_emit_byte (mb, CEE_LDIND_I);
6481 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6485 mono_mb_emit_ldloc (mb, src_ptr);
6486 mono_mb_emit_byte (mb, CEE_LDIND_I);
6488 mono_mb_emit_icall (mb, mono_marshal_free);
6491 else if (eklass == mono_defaults.string_class) {
6494 mono_mb_emit_ldloc (mb, src_ptr);
6495 mono_mb_emit_byte (mb, CEE_LDIND_I);
6497 mono_mb_emit_icall (mb, mono_marshal_free);
6502 /* set the src_ptr */
6503 mono_mb_emit_ldloc (mb, src_ptr);
6504 mono_mb_emit_stloc (mb, 0);
6507 mono_mb_emit_ldarg (mb, argnum);
6509 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6510 mono_mb_emit_ldloc (mb, index_var);
6511 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6512 mono_mb_emit_stloc (mb, 1);
6514 /* emit valuetype conversion code */
6515 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6519 mono_mb_emit_ldloc (mb, src_ptr);
6520 mono_mb_emit_stloc (mb, loc);
6521 mono_mb_emit_ldloc (mb, loc);
6523 emit_struct_free (mb, eklass, loc);
6527 mono_mb_emit_add_to_local (mb, index_var, 1);
6528 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6530 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6532 mono_mb_patch_branch (mb, label1);
6533 mono_mb_patch_branch (mb, label3);
6536 if (klass->element_class->blittable) {
6537 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6539 mono_mb_emit_ldarg (mb, argnum);
6541 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6542 mono_mb_emit_ldloc (mb, conv_arg);
6543 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6548 case MARSHAL_ACTION_PUSH:
6550 mono_mb_emit_ldloc_addr (mb, conv_arg);
6552 mono_mb_emit_ldloc (mb, conv_arg);
6555 case MARSHAL_ACTION_CONV_RESULT:
6556 /* fixme: we need conversions here */
6557 mono_mb_emit_stloc (mb, 3);
6560 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6562 guint32 label1, label2, label3;
6563 int index_var, src_ptr, esize, param_num, num_elem;
6564 MonoMarshalConv conv;
6565 gboolean is_string = FALSE;
6567 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6568 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6571 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6572 mono_mb_emit_exception_marshal_directive (mb, msg);
6576 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6577 mono_mb_emit_exception_marshal_directive (mb, msg);
6580 if (spec->native != MONO_NATIVE_LPARRAY) {
6581 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6582 mono_mb_emit_exception_marshal_directive (mb, msg);
6586 /* FIXME: t is from the method which is wrapped, not the delegate type */
6587 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6589 param_num = spec->data.array_data.param_num;
6590 num_elem = spec->data.array_data.num_elem;
6591 if (spec->data.array_data.elem_mult == 0)
6592 /* param_num is not specified */
6595 if (param_num == -1) {
6596 if (num_elem <= 0) {
6597 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6598 mono_mb_emit_exception_marshal_directive (mb, msg);
6603 /* FIXME: Optimize blittable case */
6605 eklass = klass->element_class;
6606 if (eklass == mono_defaults.string_class) {
6608 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6610 else if (eklass == mono_defaults.stringbuilder_class) {
6612 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6615 conv = MONO_MARSHAL_CONV_INVALID;
6617 mono_marshal_load_type_info (eklass);
6620 esize = sizeof (gpointer);
6622 esize = mono_class_native_size (eklass, NULL);
6623 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6625 mono_mb_emit_byte (mb, CEE_LDNULL);
6626 mono_mb_emit_stloc (mb, conv_arg);
6628 /* Check param index */
6629 if (param_num != -1) {
6630 if (param_num >= m->sig->param_count) {
6631 char *msg = g_strdup ("Array size control parameter index is out of range.");
6632 mono_mb_emit_exception_marshal_directive (mb, msg);
6635 switch (m->sig->params [param_num]->type) {
6648 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6649 mono_mb_emit_exception_marshal_directive (mb, msg);
6656 mono_mb_emit_ldarg (mb, argnum);
6657 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6659 mono_mb_emit_ldarg (mb, argnum);
6660 mono_mb_emit_stloc (mb, src_ptr);
6662 /* Create managed array */
6664 * The LPArray marshalling spec says that sometimes param_num starts
6665 * from 1, sometimes it starts from 0. But MS seems to allways start
6669 if (param_num == -1) {
6670 mono_mb_emit_icon (mb, num_elem);
6672 mono_mb_emit_ldarg (mb, param_num);
6674 mono_mb_emit_icon (mb, num_elem);
6675 mono_mb_emit_byte (mb, CEE_ADD);
6677 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6680 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6681 mono_mb_emit_stloc (mb, conv_arg);
6683 if (eklass->blittable) {
6684 mono_mb_emit_ldloc (mb, conv_arg);
6685 mono_mb_emit_byte (mb, CEE_CONV_I);
6686 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6687 mono_mb_emit_byte (mb, CEE_ADD);
6688 mono_mb_emit_ldarg (mb, argnum);
6689 mono_mb_emit_ldloc (mb, conv_arg);
6690 mono_mb_emit_byte (mb, CEE_LDLEN);
6691 mono_mb_emit_icon (mb, esize);
6692 mono_mb_emit_byte (mb, CEE_MUL);
6693 mono_mb_emit_byte (mb, CEE_PREFIX1);
6694 mono_mb_emit_byte (mb, CEE_CPBLK);
6695 mono_mb_patch_branch (mb, label1);
6699 /* Emit marshalling loop */
6700 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6701 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6702 mono_mb_emit_stloc (mb, index_var);
6703 label2 = mono_mb_get_label (mb);
6704 mono_mb_emit_ldloc (mb, index_var);
6705 mono_mb_emit_ldloc (mb, conv_arg);
6706 mono_mb_emit_byte (mb, CEE_LDLEN);
6707 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6709 /* Emit marshalling code */
6711 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6713 mono_mb_emit_ldloc (mb, conv_arg);
6714 mono_mb_emit_ldloc (mb, index_var);
6716 mono_mb_emit_ldloc (mb, src_ptr);
6717 mono_mb_emit_byte (mb, CEE_LDIND_I);
6719 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6720 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6723 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6724 mono_mb_emit_exception_marshal_directive (mb, msg);
6728 mono_mb_emit_add_to_local (mb, index_var, 1);
6729 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6731 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6733 mono_mb_patch_branch (mb, label1);
6734 mono_mb_patch_branch (mb, label3);
6738 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6740 guint32 label1, label2, label3;
6741 int index_var, dest_ptr, esize, param_num, num_elem;
6742 MonoMarshalConv conv;
6743 gboolean is_string = FALSE;
6746 /* Already handled in CONV_IN */
6749 /* These are already checked in CONV_IN */
6750 g_assert (!t->byref);
6751 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6752 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6754 param_num = spec->data.array_data.param_num;
6755 num_elem = spec->data.array_data.num_elem;
6757 if (spec->data.array_data.elem_mult == 0)
6758 /* param_num is not specified */
6761 if (param_num == -1) {
6762 if (num_elem <= 0) {
6763 g_assert_not_reached ();
6767 /* FIXME: Optimize blittable case */
6769 eklass = klass->element_class;
6770 if (eklass == mono_defaults.string_class) {
6772 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6774 else if (eklass == mono_defaults.stringbuilder_class) {
6776 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6779 conv = MONO_MARSHAL_CONV_INVALID;
6781 mono_marshal_load_type_info (eklass);
6784 esize = sizeof (gpointer);
6786 esize = mono_class_native_size (eklass, NULL);
6788 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6791 mono_mb_emit_ldloc (mb, conv_arg);
6792 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6794 mono_mb_emit_ldarg (mb, argnum);
6795 mono_mb_emit_stloc (mb, dest_ptr);
6797 if (eklass->blittable) {
6799 mono_mb_emit_ldarg (mb, argnum);
6801 mono_mb_emit_ldloc (mb, conv_arg);
6802 mono_mb_emit_byte (mb, CEE_CONV_I);
6803 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6804 mono_mb_emit_byte (mb, CEE_ADD);
6806 mono_mb_emit_ldloc (mb, conv_arg);
6807 mono_mb_emit_byte (mb, CEE_LDLEN);
6808 mono_mb_emit_icon (mb, esize);
6809 mono_mb_emit_byte (mb, CEE_MUL);
6810 mono_mb_emit_byte (mb, CEE_PREFIX1);
6811 mono_mb_emit_byte (mb, CEE_CPBLK);
6815 /* Emit marshalling loop */
6816 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6817 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6818 mono_mb_emit_stloc (mb, index_var);
6819 label2 = mono_mb_get_label (mb);
6820 mono_mb_emit_ldloc (mb, index_var);
6821 mono_mb_emit_ldloc (mb, conv_arg);
6822 mono_mb_emit_byte (mb, CEE_LDLEN);
6823 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6825 /* Emit marshalling code */
6828 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6831 mono_mb_emit_ldloc (mb, dest_ptr);
6834 mono_mb_emit_ldloc (mb, conv_arg);
6835 mono_mb_emit_ldloc (mb, index_var);
6837 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6839 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6840 mono_mb_emit_byte (mb, stind_op);
6843 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6844 mono_mb_emit_exception_marshal_directive (mb, msg);
6848 mono_mb_emit_add_to_local (mb, index_var, 1);
6849 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6851 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6853 mono_mb_patch_branch (mb, label1);
6854 mono_mb_patch_branch (mb, label3);
6858 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6860 guint32 label1, label2, label3;
6861 int index_var, src, dest, esize;
6862 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6863 gboolean is_string = FALSE;
6865 g_assert (!t->byref);
6867 eklass = klass->element_class;
6869 mono_marshal_load_type_info (eklass);
6871 if (eklass == mono_defaults.string_class) {
6873 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6876 g_assert_not_reached ();
6880 esize = sizeof (gpointer);
6881 else if (eklass == mono_defaults.char_class)
6882 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6884 esize = mono_class_native_size (eklass, NULL);
6886 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6887 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6889 mono_mb_emit_stloc (mb, src);
6890 mono_mb_emit_ldloc (mb, src);
6891 mono_mb_emit_stloc (mb, 3);
6893 /* Check for null */
6894 mono_mb_emit_ldloc (mb, src);
6895 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6897 /* Allocate native array */
6898 mono_mb_emit_icon (mb, esize);
6899 mono_mb_emit_ldloc (mb, src);
6900 mono_mb_emit_byte (mb, CEE_LDLEN);
6902 if (eklass == mono_defaults.string_class) {
6903 /* Make the array bigger for the terminating null */
6904 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6905 mono_mb_emit_byte (mb, CEE_ADD);
6907 mono_mb_emit_byte (mb, CEE_MUL);
6908 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6909 mono_mb_emit_stloc (mb, dest);
6910 mono_mb_emit_ldloc (mb, dest);
6911 mono_mb_emit_stloc (mb, 3);
6913 /* Emit marshalling loop */
6914 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6915 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6916 mono_mb_emit_stloc (mb, index_var);
6917 label2 = mono_mb_get_label (mb);
6918 mono_mb_emit_ldloc (mb, index_var);
6919 mono_mb_emit_ldloc (mb, src);
6920 mono_mb_emit_byte (mb, CEE_LDLEN);
6921 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6923 /* Emit marshalling code */
6926 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6929 mono_mb_emit_ldloc (mb, dest);
6932 mono_mb_emit_ldloc (mb, src);
6933 mono_mb_emit_ldloc (mb, index_var);
6935 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6937 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6938 mono_mb_emit_byte (mb, stind_op);
6941 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6942 mono_mb_emit_exception_marshal_directive (mb, msg);
6946 mono_mb_emit_add_to_local (mb, index_var, 1);
6947 mono_mb_emit_add_to_local (mb, dest, esize);
6949 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6951 mono_mb_patch_branch (mb, label3);
6952 mono_mb_patch_branch (mb, label1);
6956 g_assert_not_reached ();
6963 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6966 return &mono_defaults.int32_class->byval_arg;
6968 switch (spec->native) {
6969 case MONO_NATIVE_I1:
6970 case MONO_NATIVE_U1:
6971 return &mono_defaults.byte_class->byval_arg;
6972 case MONO_NATIVE_VARIANTBOOL:
6973 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6974 return &mono_defaults.int16_class->byval_arg;
6975 case MONO_NATIVE_BOOLEAN:
6976 return &mono_defaults.int32_class->byval_arg;
6978 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6979 return &mono_defaults.int32_class->byval_arg;
6985 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6987 MonoClass* conv_arg_class = mono_defaults.int32_class;
6989 switch (spec->native) {
6990 case MONO_NATIVE_I1:
6991 case MONO_NATIVE_U1:
6992 conv_arg_class = mono_defaults.byte_class;
6993 if (ldop) *ldop = CEE_LDIND_I1;
6995 case MONO_NATIVE_VARIANTBOOL:
6996 conv_arg_class = mono_defaults.int16_class;
6997 if (ldop) *ldop = CEE_LDIND_I2;
6999 case MONO_NATIVE_BOOLEAN:
7002 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7005 return conv_arg_class;
7009 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7010 MonoMarshalSpec *spec,
7011 int conv_arg, MonoType **conv_arg_type,
7012 MarshalAction action)
7016 case MARSHAL_ACTION_CONV_IN:
7018 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7020 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7023 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7024 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7026 *conv_arg_type = &conv_arg_class->this_arg;
7028 *conv_arg_type = &conv_arg_class->byval_arg;
7034 MonoMethodBuilder *mb = m->mb;
7037 case MARSHAL_ACTION_CONV_IN: {
7038 MonoType *local_type;
7040 guint8 ldc_op = CEE_LDC_I4_1;
7042 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7044 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7046 *conv_arg_type = local_type;
7047 conv_arg = mono_mb_add_local (mb, local_type);
7049 mono_mb_emit_ldarg (mb, argnum);
7051 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7052 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7053 mono_mb_emit_byte (mb, ldc_op);
7054 mono_mb_emit_stloc (mb, conv_arg);
7055 mono_mb_patch_branch (mb, label_false);
7060 case MARSHAL_ACTION_CONV_OUT:
7062 int label_false, label_end;
7066 mono_mb_emit_ldarg (mb, argnum);
7067 mono_mb_emit_ldloc (mb, conv_arg);
7069 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7070 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7072 label_end = mono_mb_emit_branch (mb, CEE_BR);
7073 mono_mb_patch_branch (mb, label_false);
7074 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7075 mono_mb_patch_branch (mb, label_end);
7077 mono_mb_emit_byte (mb, CEE_STIND_I1);
7081 case MARSHAL_ACTION_PUSH:
7083 mono_mb_emit_ldloc_addr (mb, conv_arg);
7085 mono_mb_emit_ldloc (mb, conv_arg);
7087 mono_mb_emit_ldarg (mb, argnum);
7090 case MARSHAL_ACTION_CONV_RESULT:
7091 /* maybe we need to make sure that it fits within 8 bits */
7092 mono_mb_emit_stloc (mb, 3);
7095 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7096 MonoClass* conv_arg_class = mono_defaults.int32_class;
7097 guint8 ldop = CEE_LDIND_I4;
7098 int label_null, label_false;
7100 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7101 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7104 *conv_arg_type = &conv_arg_class->this_arg;
7106 *conv_arg_type = &conv_arg_class->byval_arg;
7109 mono_mb_emit_ldarg (mb, argnum);
7113 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7114 mono_mb_emit_ldarg (mb, argnum);
7115 mono_mb_emit_byte (mb, ldop);
7119 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7120 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7121 mono_mb_emit_stloc (mb, conv_arg);
7122 mono_mb_patch_branch (mb, label_false);
7125 mono_mb_patch_branch (mb, label_null);
7129 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7130 guint8 stop = CEE_STIND_I4;
7131 guint8 ldc_op = CEE_LDC_I4_1;
7132 int label_null,label_false, label_end;;
7137 switch (spec->native) {
7138 case MONO_NATIVE_I1:
7139 case MONO_NATIVE_U1:
7140 stop = CEE_STIND_I1;
7142 case MONO_NATIVE_VARIANTBOOL:
7143 stop = CEE_STIND_I2;
7144 ldc_op = CEE_LDC_I4_M1;
7152 mono_mb_emit_ldarg (mb, argnum);
7153 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7155 mono_mb_emit_ldarg (mb, argnum);
7156 mono_mb_emit_ldloc (mb, conv_arg);
7158 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7159 mono_mb_emit_byte (mb, ldc_op);
7160 label_end = mono_mb_emit_branch (mb, CEE_BR);
7162 mono_mb_patch_branch (mb, label_false);
7163 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7164 mono_mb_patch_branch (mb, label_end);
7166 mono_mb_emit_byte (mb, stop);
7167 mono_mb_patch_branch (mb, label_null);
7172 g_assert_not_reached ();
7179 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7180 MonoMarshalSpec *spec, int conv_arg,
7181 MonoType **conv_arg_type, MarshalAction action)
7184 MonoMethodBuilder *mb = m->mb;
7187 case MARSHAL_ACTION_CONV_IN:
7188 /* MS seems to allow this in some cases, ie. bxc #158 */
7190 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7191 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7192 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7197 case MARSHAL_ACTION_PUSH:
7198 mono_mb_emit_ldarg (mb, argnum);
7201 case MARSHAL_ACTION_CONV_RESULT:
7202 /* no conversions necessary */
7203 mono_mb_emit_stloc (mb, 3);
7214 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7215 MonoMarshalSpec *spec, int conv_arg,
7216 MonoType **conv_arg_type, MarshalAction action)
7219 MonoMethodBuilder *mb = m->mb;
7222 case MARSHAL_ACTION_PUSH:
7223 /* fixme: dont know how to marshal that. We cant simply
7224 * convert it to a one byte UTF8 character, because an
7225 * unicode character may need more that one byte in UTF8 */
7226 mono_mb_emit_ldarg (mb, argnum);
7229 case MARSHAL_ACTION_CONV_RESULT:
7230 /* fixme: we need conversions here */
7231 mono_mb_emit_stloc (mb, 3);
7242 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7243 MonoMarshalSpec *spec, int conv_arg,
7244 MonoType **conv_arg_type, MarshalAction action)
7247 MonoMethodBuilder *mb = m->mb;
7250 case MARSHAL_ACTION_PUSH:
7251 mono_mb_emit_ldarg (mb, argnum);
7254 case MARSHAL_ACTION_CONV_RESULT:
7255 /* no conversions necessary */
7256 mono_mb_emit_stloc (mb, 3);
7267 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7268 MonoMarshalSpec *spec, int conv_arg,
7269 MonoType **conv_arg_type, MarshalAction action)
7271 /* Ensure that we have marshalling info for this param */
7272 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7274 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7275 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7277 if (spec && spec->native == MONO_NATIVE_ASANY)
7278 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7281 case MONO_TYPE_VALUETYPE:
7282 if (t->data.klass == mono_defaults.handleref_class)
7283 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7285 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7286 case MONO_TYPE_STRING:
7287 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7288 case MONO_TYPE_CLASS:
7289 case MONO_TYPE_OBJECT:
7290 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7291 if (spec && spec->native == MONO_NATIVE_STRUCT)
7292 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7295 #if !defined(DISABLE_COM)
7296 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7297 spec->native == MONO_NATIVE_IDISPATCH ||
7298 spec->native == MONO_NATIVE_INTERFACE))
7299 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7300 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7301 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7302 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7303 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7306 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7307 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7308 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7310 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7311 case MONO_TYPE_ARRAY:
7312 case MONO_TYPE_SZARRAY:
7313 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7314 case MONO_TYPE_BOOLEAN:
7315 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7317 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7318 case MONO_TYPE_CHAR:
7319 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7332 case MONO_TYPE_FNPTR:
7333 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7334 case MONO_TYPE_GENERICINST:
7335 if (mono_type_generic_inst_is_valuetype (t))
7336 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7338 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7346 * mono_marshal_emit_native_wrapper:
7347 * @image: the image to use for looking up custom marshallers
7348 * @sig: The signature of the native function
7349 * @piinfo: Marshalling information
7350 * @mspecs: Marshalling information
7351 * @aot: whenever the created method will be compiled by the AOT compiler
7352 * @method: if non-NULL, the pinvoke method to call
7353 * @check_exceptions: Whenever to check for pending exceptions after the native call
7354 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7356 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7359 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)
7361 EmitMarshalContext m;
7362 MonoMethodSignature *csig;
7364 int i, argnum, *tmp_locals;
7365 int type, param_shift = 0;
7366 int coop_gc_stack_dummy, coop_gc_var;
7368 memset (&m, 0, sizeof (m));
7373 /* we copy the signature, so that we can set pinvoke to 0 */
7375 /* The function address is passed as the first argument */
7376 g_assert (!sig->hasthis);
7379 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7387 /* we allocate local for use with emit_struct_conv() */
7388 /* allocate local 0 (pointer) src_ptr */
7389 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7390 /* allocate local 1 (pointer) dst_ptr */
7391 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7392 /* allocate local 2 (boolean) delete_old */
7393 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7395 /* delete_old = FALSE */
7396 mono_mb_emit_icon (mb, 0);
7397 mono_mb_emit_stloc (mb, 2);
7399 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7400 /* allocate local 3 to store the return value */
7401 mono_mb_add_local (mb, sig->ret);
7404 if (mono_threads_is_coop_enabled ()) {
7405 /* local 4, dummy local used to get a stack address for suspend funcs */
7406 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7407 /* local 5, the local to be used when calling the suspend funcs */
7408 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7412 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7414 * ret = method (...);
7416 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7423 if (MONO_TYPE_ISSTRUCT (sig->ret))
7424 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7426 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7427 /* Return type custom marshaling */
7429 * Since we can't determine the return type of the unmanaged function,
7430 * we assume it returns a pointer, and pass that pointer to
7431 * MarshalNativeToManaged.
7433 csig->ret = &mono_defaults.int_class->byval_arg;
7436 /* we first do all conversions */
7437 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7438 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7440 for (i = 0; i < sig->param_count; i ++) {
7441 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7444 // In coop mode need to register blocking state during native call
7445 if (mono_threads_is_coop_enabled ()) {
7446 // Perform an extra, early lookup of the function address, so any exceptions
7447 // potentially resulting from the lookup occur before entering blocking mode.
7448 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7449 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7450 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7451 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7454 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7455 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7456 mono_mb_emit_stloc (mb, coop_gc_var);
7459 /* push all arguments */
7462 mono_mb_emit_byte (mb, CEE_LDARG_0);
7464 for (i = 0; i < sig->param_count; i++) {
7465 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7468 /* call the native method */
7470 mono_mb_emit_byte (mb, CEE_LDARG_0);
7471 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7472 mono_mb_emit_byte (mb, CEE_LDIND_I);
7473 mono_mb_emit_calli (mb, csig);
7474 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7476 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7478 g_assert_not_reached ();
7482 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7483 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7484 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7485 mono_mb_emit_calli (mb, csig);
7487 mono_mb_emit_native_call (mb, csig, func);
7491 /* Set LastError if needed */
7492 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7495 static MonoMethodSignature *get_last_error_sig = NULL;
7496 if (!get_last_error_sig) {
7497 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7498 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7499 get_last_error_sig->pinvoke = 1;
7503 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7504 * clobber its value.
7506 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7507 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7509 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7510 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7511 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7514 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7518 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7519 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7520 mono_class_init (klass);
7521 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
7522 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7523 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7524 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7525 mono_mb_emit_stloc (mb, m.vtaddr_var);
7529 /* Unblock before converting the result, since that can involve calls into the runtime */
7530 if (mono_threads_is_coop_enabled ()) {
7531 mono_mb_emit_ldloc (mb, coop_gc_var);
7532 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7533 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7536 /* convert the result */
7537 if (!sig->ret->byref) {
7538 MonoMarshalSpec *spec = mspecs [0];
7539 type = sig->ret->type;
7541 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7542 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7546 case MONO_TYPE_VOID:
7548 case MONO_TYPE_VALUETYPE:
7549 klass = sig->ret->data.klass;
7550 if (klass->enumtype) {
7551 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7554 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7568 case MONO_TYPE_FNPTR:
7569 case MONO_TYPE_STRING:
7570 case MONO_TYPE_CLASS:
7571 case MONO_TYPE_OBJECT:
7572 case MONO_TYPE_BOOLEAN:
7573 case MONO_TYPE_ARRAY:
7574 case MONO_TYPE_SZARRAY:
7575 case MONO_TYPE_CHAR:
7577 case MONO_TYPE_GENERICINST:
7578 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7580 case MONO_TYPE_TYPEDBYREF:
7582 g_warning ("return type 0x%02x unknown", sig->ret->type);
7583 g_assert_not_reached ();
7587 mono_mb_emit_stloc (mb, 3);
7591 * Need to call this after converting the result since MONO_VTADDR needs
7592 * to be adjacent to the call instruction.
7594 if (check_exceptions)
7595 emit_thread_interrupt_checkpoint (mb);
7597 /* we need to convert byref arguments back and free string arrays */
7598 for (i = 0; i < sig->param_count; i++) {
7599 MonoType *t = sig->params [i];
7600 MonoMarshalSpec *spec = mspecs [i + 1];
7602 argnum = i + param_shift;
7604 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7605 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7610 case MONO_TYPE_STRING:
7611 case MONO_TYPE_VALUETYPE:
7612 case MONO_TYPE_CLASS:
7613 case MONO_TYPE_OBJECT:
7614 case MONO_TYPE_SZARRAY:
7615 case MONO_TYPE_BOOLEAN:
7616 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7623 if (!MONO_TYPE_IS_VOID(sig->ret))
7624 mono_mb_emit_ldloc (mb, 3);
7626 mono_mb_emit_byte (mb, CEE_RET);
7628 #endif /* DISABLE_JIT */
7631 * mono_marshal_get_native_wrapper:
7632 * @method: The MonoMethod to wrap.
7633 * @check_exceptions: Whenever to check for pending exceptions
7635 * generates IL code for the pinvoke wrapper (the generated method
7636 * calls the unmanaged code in piinfo->addr)
7639 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7641 MonoMethodSignature *sig, *csig;
7642 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7643 MonoMethodBuilder *mb;
7644 MonoMarshalSpec **mspecs;
7647 gboolean pinvoke = FALSE;
7650 const char *exc_class = "MissingMethodException";
7651 const char *exc_arg = NULL;
7654 g_assert (method != NULL);
7655 g_assert (mono_method_signature (method)->pinvoke);
7657 GHashTable **cache_ptr;
7660 if (check_exceptions)
7661 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7663 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7665 if (check_exceptions)
7666 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7668 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7671 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7673 if ((res = mono_marshal_find_in_cache (cache, method)))
7676 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7677 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7681 return mono_cominterop_get_native_wrapper (method);
7683 g_assert_not_reached ();
7687 sig = mono_method_signature (method);
7689 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7690 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7693 if (!piinfo->addr) {
7695 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7696 exc_arg = "Method contains unsupported native code";
7698 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7700 piinfo->addr = mono_lookup_internal_call (method);
7704 /* hack - redirect certain string constructors to CreateString */
7705 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7706 g_assert (!pinvoke);
7707 g_assert (method->string_ctor);
7708 g_assert (sig->hasthis);
7710 /* CreateString returns a value */
7711 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7712 csig->ret = &mono_defaults.string_class->byval_arg;
7716 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7717 if (!strcmp ("CreateString", res->name) &&
7718 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7721 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7722 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7724 /* create a wrapper to preserve .ctor in stack trace */
7725 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7728 mono_mb_emit_byte (mb, CEE_LDARG_0);
7729 for (i = 1; i <= csig->param_count; i++)
7730 mono_mb_emit_ldarg (mb, i);
7731 mono_mb_emit_managed_call (mb, res, NULL);
7732 mono_mb_emit_byte (mb, CEE_RET);
7735 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7736 info->d.string_ctor.method = method;
7738 /* use native_wrapper_cache because internal calls are looked up there */
7739 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7740 csig->param_count + 1, info, NULL);
7747 /* exception will be thrown */
7748 piinfo->addr = NULL;
7749 g_warning ("cannot find CreateString for .ctor");
7752 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7754 mb->method->save_lmf = 1;
7757 * In AOT mode and embedding scenarios, it is possible that the icall is not
7758 * registered in the runtime doing the AOT compilation.
7760 if (!piinfo->addr && !aot) {
7762 mono_mb_emit_exception (mb, exc_class, exc_arg);
7764 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7765 info->d.managed_to_native.method = method;
7767 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7769 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7770 csig->param_count + 16, info, NULL);
7776 /* internal calls: we simply push all arguments and call the method (no conversions) */
7777 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7779 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7781 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7783 //printf ("%s\n", mono_method_full_name (method, 1));
7785 /* hack - string constructors returns a value */
7786 if (method->string_ctor)
7787 csig->ret = &mono_defaults.string_class->byval_arg;
7791 MonoClass *handle_stack_mark_class;
7792 MonoClass *error_class;
7793 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
7794 MonoMethodSignature *call_sig = csig;
7795 gboolean uses_handles = FALSE;
7796 gboolean has_outarg_handles = FALSE;
7797 int *outarg_handle = NULL;
7798 (void) mono_lookup_internal_call_full (method, &uses_handles);
7801 /* If it uses handles and MonoError, it had better check exceptions */
7802 g_assert (!uses_handles || check_exceptions);
7805 MonoMethodSignature *ret;
7807 /* Add a MonoError argument */
7808 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
7809 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
7811 ret->param_count = csig->param_count + 1;
7812 ret->ret = csig->ret;
7813 for (int i = 0; i < csig->param_count; ++i) {
7814 if (MONO_TYPE_IS_REFERENCE (csig->params[i])) {
7815 ret->params [i] = mono_class_get_byref_type (mono_class_from_mono_type(csig->params[i]));
7816 if (mono_signature_param_is_out (csig, i)) {
7817 has_outarg_handles = TRUE;
7820 ret->params [i] = csig->params [i];
7822 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
7827 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
7828 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
7830 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
7831 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
7832 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
7834 if (has_outarg_handles) {
7835 outarg_handle = g_new0 (int, sig->param_count);
7837 /* add a local var to hold the handles for each out arg */
7838 for (int i = 0; i < sig->param_count; ++i) {
7839 if (mono_signature_param_is_out (sig, i) && MONO_TYPE_IS_REFERENCE (sig->params[i])) {
7840 outarg_handle[i] = mono_mb_add_local (mb, sig->params[i]);
7841 } else if (outarg_handle != NULL)
7842 outarg_handle[i] = -1;
7851 * Add a null check since public icalls can be called with 'call' which
7852 * does no such check.
7854 mono_mb_emit_byte (mb, CEE_LDARG_0);
7855 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7856 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7857 mono_mb_patch_branch (mb, pos);
7861 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7862 mono_mb_emit_ldloc_addr (mb, error_var);
7863 mono_mb_emit_icall (mb, mono_icall_start);
7864 mono_mb_emit_stloc (mb, thread_info_var);
7867 mono_mb_emit_byte (mb, CEE_LDARG_0);
7868 mono_mb_emit_icall (mb, mono_handle_new);
7870 for (i = 0; i < sig->param_count; i++) {
7871 /* load each argument. object reference arguments get wrapped in handles */
7873 if (!MONO_TYPE_IS_REFERENCE (sig->params [i])) {
7874 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7876 if (outarg_handle && outarg_handle[i] != -1) {
7877 /* handleI = argI = mono_handle_new (NULL) */
7878 mono_mb_emit_byte (mb, CEE_LDNULL);
7879 mono_mb_emit_icall (mb, mono_handle_new);
7881 mono_mb_emit_byte (mb, CEE_DUP);
7883 mono_mb_emit_stloc (mb, outarg_handle[i]);
7885 /* argI = mono_handle_new (argI_raw) */
7886 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7887 mono_mb_emit_icall (mb, mono_handle_new);
7891 mono_mb_emit_ldloc_addr (mb, error_var);
7894 mono_mb_emit_byte (mb, CEE_LDARG_0);
7895 for (i = 0; i < sig->param_count; i++)
7896 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7900 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7901 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7902 mono_mb_emit_calli (mb, call_sig);
7904 g_assert (piinfo->addr);
7905 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
7909 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
7910 // if (ret != NULL_HANDLE) {
7911 // ret = MONO_HANDLE_RAW(ret)
7913 mono_mb_emit_byte (mb, CEE_DUP);
7914 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7915 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
7916 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7917 mono_mb_patch_branch (mb, pos);
7919 if (outarg_handle != NULL) {
7920 for (i = 0; i < sig->param_count; i++) {
7921 if (outarg_handle[i] != -1) {
7922 /* *argI_raw = MONO_HANDLE_RAW (handleI) */
7925 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7927 mono_mb_emit_ldloc (mb, outarg_handle[i]);
7928 /* MONO_HANDLE_RAW(handleI) */
7929 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
7930 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7931 /* *argI_raw = MONO_HANDLE_RAW(handleI) */
7932 mono_mb_emit_byte (mb, CEE_STIND_REF);
7935 g_free (outarg_handle);
7936 outarg_handle = NULL;
7938 mono_mb_emit_ldloc (mb, thread_info_var);
7939 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7940 mono_mb_emit_ldloc_addr (mb, error_var);
7941 mono_mb_emit_icall (mb, mono_icall_end);
7944 if (check_exceptions)
7945 emit_thread_interrupt_checkpoint (mb);
7946 mono_mb_emit_byte (mb, CEE_RET);
7948 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7949 info->d.managed_to_native.method = method;
7951 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7953 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7962 g_assert (piinfo->addr);
7965 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7966 mono_method_get_marshal_info (method, mspecs);
7968 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7970 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7971 info->d.managed_to_native.method = method;
7973 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7975 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7980 for (i = sig->param_count; i >= 0; i--)
7982 mono_metadata_free_marshal_spec (mspecs [i]);
7986 /* mono_method_print_code (res); */
7992 * mono_marshal_get_native_func_wrapper:
7993 * @image: The image to use for memory allocation and for looking up custom marshallers.
7994 * @sig: The signature of the function
7995 * @func: The native function to wrap
7997 * Returns a wrapper method around native functions, similar to the pinvoke
8001 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8002 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8004 MonoMethodSignature *csig;
8006 SignaturePointerPair key, *new_key;
8007 MonoMethodBuilder *mb;
8016 // Generic types are not safe to place in MonoImage caches.
8017 g_assert (!sig->is_inflated);
8019 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
8020 if ((res = mono_marshal_find_in_cache (cache, &key)))
8023 name = g_strdup_printf ("wrapper_native_%p", func);
8024 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8025 mb->method->save_lmf = 1;
8028 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8031 csig = mono_metadata_signature_dup_full (image, sig);
8034 new_key = g_new (SignaturePointerPair,1);
8035 new_key->sig = csig;
8036 new_key->pointer = func;
8038 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
8044 mono_marshal_set_wrapper_info (res, NULL);
8050 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8054 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8056 MonoMethodSignature *sig, *csig;
8057 MonoMethodBuilder *mb;
8062 MonoMethodPInvoke mpiinfo;
8063 MonoMethodPInvoke *piinfo = &mpiinfo;
8064 MonoMarshalSpec **mspecs;
8065 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8066 MonoImage *image = invoke->klass->image;
8069 // FIXME: include UnmanagedFunctionPointerAttribute info
8072 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8074 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8076 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8079 memset (&mpiinfo, 0, sizeof (mpiinfo));
8080 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8082 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8083 mono_method_get_marshal_info (invoke, mspecs);
8084 /* Freed below so don't alloc from mempool */
8085 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8088 name = g_strdup_printf ("wrapper_aot_native");
8089 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8090 mb->method->save_lmf = 1;
8093 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8096 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8097 info->d.managed_to_native.method = invoke;
8099 g_assert (!sig->hasthis);
8100 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8102 res = mono_mb_create_and_cache_full (cache, invoke,
8103 mb, csig, csig->param_count + 16,
8107 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8109 mono_metadata_free_marshal_spec (mspecs [i]);
8117 * mono_marshal_emit_managed_wrapper:
8119 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8120 * the delegate which wraps the managed method to be called. For closed delegates,
8121 * it could have fewer parameters than the method it wraps.
8122 * THIS_LOC is the memory location where the target of the delegate is stored.
8125 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8128 MonoMethodSignature *sig, *csig;
8134 /* we first do all conversions */
8135 for (i = 0; i < sig->param_count; i ++) {
8136 MonoType *t = sig->params [i];
8139 case MONO_TYPE_OBJECT:
8140 case MONO_TYPE_CLASS:
8141 case MONO_TYPE_VALUETYPE:
8142 case MONO_TYPE_ARRAY:
8143 case MONO_TYPE_SZARRAY:
8144 case MONO_TYPE_STRING:
8145 case MONO_TYPE_BOOLEAN:
8146 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8150 if (!sig->ret->byref) {
8151 switch (sig->ret->type) {
8152 case MONO_TYPE_STRING:
8153 csig->ret = &mono_defaults.int_class->byval_arg;
8160 MonoMethodSignature *sig, *csig;
8161 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8162 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8163 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8164 gboolean closed = FALSE;
8169 /* allocate local 0 (pointer) src_ptr */
8170 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8171 /* allocate local 1 (pointer) dst_ptr */
8172 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8173 /* allocate local 2 (boolean) delete_old */
8174 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8176 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8177 /* Closed delegate */
8178 g_assert (sig->param_count == invoke_sig->param_count + 1);
8180 /* Use a new signature without the first argument */
8181 sig = mono_metadata_signature_dup (sig);
8182 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8183 sig->param_count --;
8186 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8187 /* allocate local 3 to store the return value */
8188 mono_mb_add_local (mb, sig->ret);
8191 if (MONO_TYPE_ISSTRUCT (sig->ret))
8192 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8194 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8195 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8197 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8198 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8203 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8204 * mono_threads_attach_coop ();
8208 * ret = method (...);
8209 * } catch (Exception e) {
8210 * ex = mono_gchandle_new (e, false);
8212 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8213 * mono_threads_detach_coop ();
8216 * mono_marshal_ftnptr_eh_callback (ex);
8222 clauses = g_new0 (MonoExceptionClause, 2);
8224 clause_catch = &clauses [0];
8225 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8226 clause_catch->data.catch_class = mono_defaults.exception_class;
8228 clause_finally = &clauses [1];
8229 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8231 mono_mb_emit_icon (mb, 0);
8232 mono_mb_emit_stloc (mb, 2);
8234 mono_mb_emit_icon (mb, -1);
8235 mono_mb_emit_byte (mb, CEE_CONV_U4);
8236 mono_mb_emit_stloc (mb, ex_local);
8239 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8241 if (!mono_threads_is_coop_enabled ()) {
8242 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8243 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8245 /* mono_threads_attach_coop (); */
8246 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8247 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8248 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8249 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8250 mono_mb_emit_stloc (mb, attach_cookie_local);
8253 /* <interrupt check> */
8254 emit_thread_interrupt_checkpoint (mb);
8256 /* we first do all conversions */
8257 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8258 for (i = 0; i < sig->param_count; i ++) {
8259 MonoType *t = sig->params [i];
8262 case MONO_TYPE_OBJECT:
8263 case MONO_TYPE_CLASS:
8264 case MONO_TYPE_VALUETYPE:
8265 case MONO_TYPE_ARRAY:
8266 case MONO_TYPE_SZARRAY:
8267 case MONO_TYPE_STRING:
8268 case MONO_TYPE_BOOLEAN:
8269 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8279 if (target_handle) {
8280 mono_mb_emit_icon (mb, (gint32)target_handle);
8281 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8284 g_assert_not_reached ();
8286 } else if (closed) {
8287 mono_mb_emit_icon (mb, (gint32)target_handle);
8288 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8291 for (i = 0; i < sig->param_count; i++) {
8292 MonoType *t = sig->params [i];
8294 if (tmp_locals [i]) {
8296 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8298 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8301 mono_mb_emit_ldarg (mb, i);
8304 /* ret = method (...) */
8305 mono_mb_emit_managed_call (mb, method, NULL);
8307 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8308 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8309 mono_class_init (klass);
8310 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
8311 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8312 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8313 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8314 mono_mb_emit_stloc (mb, m->vtaddr_var);
8318 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8319 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8320 } else if (!sig->ret->byref) {
8321 switch (sig->ret->type) {
8322 case MONO_TYPE_VOID:
8324 case MONO_TYPE_BOOLEAN:
8327 case MONO_TYPE_CHAR:
8339 case MONO_TYPE_OBJECT:
8340 mono_mb_emit_stloc (mb, 3);
8342 case MONO_TYPE_STRING:
8343 csig->ret = &mono_defaults.int_class->byval_arg;
8344 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8346 case MONO_TYPE_VALUETYPE:
8347 case MONO_TYPE_CLASS:
8348 case MONO_TYPE_SZARRAY:
8349 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8352 g_warning ("return type 0x%02x unknown", sig->ret->type);
8353 g_assert_not_reached ();
8356 mono_mb_emit_stloc (mb, 3);
8359 /* Convert byref arguments back */
8360 for (i = 0; i < sig->param_count; i ++) {
8361 MonoType *t = sig->params [i];
8362 MonoMarshalSpec *spec = mspecs [i + 1];
8364 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8365 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8367 else if (t->byref) {
8369 case MONO_TYPE_CLASS:
8370 case MONO_TYPE_VALUETYPE:
8371 case MONO_TYPE_OBJECT:
8372 case MONO_TYPE_STRING:
8373 case MONO_TYPE_BOOLEAN:
8374 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8380 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8381 /* The [Out] information is encoded in the delegate signature */
8383 case MONO_TYPE_SZARRAY:
8384 case MONO_TYPE_CLASS:
8385 case MONO_TYPE_VALUETYPE:
8386 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8389 g_assert_not_reached ();
8394 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8398 /* catch (Exception e) { */
8399 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8400 clause_catch->handler_offset = mono_mb_get_label (mb);
8402 mono_mb_emit_stloc (mb, e_local);
8404 /* ex = mono_gchandle_new (e, false); */
8405 mono_mb_emit_ldloc (mb, e_local);
8406 mono_mb_emit_icon (mb, 0);
8407 mono_mb_emit_icall (mb, mono_gchandle_new);
8408 mono_mb_emit_stloc (mb, ex_local);
8410 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8413 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8416 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8417 clause_finally->handler_offset = mono_mb_get_label (mb);
8419 if (!mono_threads_is_coop_enabled ()) {
8420 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8421 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8423 /* mono_threads_detach_coop (); */
8424 mono_mb_emit_ldloc (mb, attach_cookie_local);
8425 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8426 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8430 mono_mb_emit_ldloc (mb, ex_local);
8431 mono_mb_emit_icon (mb, -1);
8432 mono_mb_emit_byte (mb, CEE_CONV_U4);
8433 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8435 /* mono_marshal_ftnptr_eh_callback (ex) */
8436 mono_mb_emit_ldloc (mb, ex_local);
8437 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8440 mono_mb_patch_branch (mb, ex_m1_pos);
8442 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8444 /* } [endfinally] */
8445 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8447 mono_mb_patch_branch (mb, leave_try_pos);
8448 mono_mb_patch_branch (mb, leave_catch_pos);
8451 if (m->retobj_var) {
8452 mono_mb_emit_ldloc (mb, m->retobj_var);
8453 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8454 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8457 if (!MONO_TYPE_IS_VOID(sig->ret))
8458 mono_mb_emit_ldloc (mb, 3);
8459 mono_mb_emit_byte (mb, CEE_RET);
8462 mono_mb_set_clauses (mb, 2, clauses);
8470 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8472 MonoMethodSignature *sig;
8477 * Under windows, delegates passed to native code must use the STDCALL
8478 * calling convention.
8480 csig->call_convention = MONO_CALL_STDCALL;
8483 sig = mono_method_signature (method);
8485 /* Change default calling convention if needed */
8486 /* Why is this a modopt ? */
8487 if (sig->ret && sig->ret->num_mods) {
8488 for (i = 0; i < sig->ret->num_mods; ++i) {
8490 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8491 g_assert (mono_error_ok (&error));
8492 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8493 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8494 csig->call_convention = MONO_CALL_C;
8495 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8496 csig->call_convention = MONO_CALL_STDCALL;
8497 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8498 csig->call_convention = MONO_CALL_FASTCALL;
8499 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8500 csig->call_convention = MONO_CALL_THISCALL;
8507 * generates IL code to call managed methods from unmanaged code
8508 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8511 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8514 MonoMethodSignature *sig, *csig, *invoke_sig;
8515 MonoMethodBuilder *mb;
8516 MonoMethod *res, *invoke;
8517 MonoMarshalSpec **mspecs;
8518 MonoMethodPInvoke piinfo;
8521 EmitMarshalContext m;
8523 g_assert (method != NULL);
8524 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8527 * FIXME: Should cache the method+delegate type pair, since the same method
8528 * could be called with different delegates, thus different marshalling
8531 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8533 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8536 invoke = mono_get_delegate_invoke (delegate_klass);
8537 invoke_sig = mono_method_signature (invoke);
8539 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8540 mono_method_get_marshal_info (invoke, mspecs);
8542 sig = mono_method_signature (method);
8544 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8546 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8547 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8549 /* we copy the signature, so that we can modify it */
8551 /* Need to free this later */
8552 csig = mono_metadata_signature_dup (invoke_sig);
8554 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8558 memset (&m, 0, sizeof (m));
8564 m.image = method->klass->image;
8566 mono_marshal_set_callconv_from_modopt (invoke, csig);
8568 /* The attribute is only available in Net 2.0 */
8569 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8570 MonoCustomAttrInfo *cinfo;
8571 MonoCustomAttrEntry *attr;
8574 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8575 * contents of the attribute without constructing it, as that might not be
8576 * possible when running in cross-compiling mode.
8578 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8579 mono_error_assert_ok (&error);
8582 for (i = 0; i < cinfo->num_attrs; ++i) {
8583 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8584 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8585 attr = &cinfo->attrs [i];
8591 MonoArray *typed_args, *named_args;
8592 CattrNamedArg *arginfo;
8596 MonoBoolean set_last_error = 0;
8599 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8600 g_assert (mono_error_ok (&error));
8601 g_assert (mono_array_length (typed_args) == 1);
8604 o = mono_array_get (typed_args, MonoObject*, 0);
8605 call_conv = *(gint32*)mono_object_unbox (o);
8608 for (i = 0; i < mono_array_length (named_args); ++i) {
8609 CattrNamedArg *narg = &arginfo [i];
8611 o = mono_array_get (named_args, MonoObject*, i);
8613 g_assert (narg->field);
8614 if (!strcmp (narg->field->name, "CharSet")) {
8615 charset = *(gint32*)mono_object_unbox (o);
8616 } else if (!strcmp (narg->field->name, "SetLastError")) {
8617 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8618 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8619 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8620 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8621 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8623 g_assert_not_reached ();
8629 memset (&piinfo, 0, sizeof (piinfo));
8631 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8633 csig->call_convention = call_conv - 1;
8636 if (cinfo && !cinfo->cached)
8637 mono_custom_attrs_free (cinfo);
8640 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8642 if (!target_handle) {
8645 // FIXME: Associate it with the method+delegate_klass pair
8646 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8647 info->d.native_to_managed.method = method;
8648 info->d.native_to_managed.klass = delegate_klass;
8650 res = mono_mb_create_and_cache_full (cache, method,
8651 mb, csig, sig->param_count + 16,
8657 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8661 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8663 mono_metadata_free_marshal_spec (mspecs [i]);
8666 /* mono_method_print_code (res); */
8672 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8676 MonoMethodSignature *sig;
8677 MonoMethodBuilder *mb;
8682 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8684 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8687 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8688 MonoMethodSignature *csig;
8689 MonoMarshalSpec **mspecs;
8690 EmitMarshalContext m;
8692 sig = mono_method_signature (method);
8693 g_assert (!sig->hasthis);
8695 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8696 mono_method_get_marshal_info (method, mspecs);
8698 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8699 csig = mono_metadata_signature_dup_full (image, sig);
8703 memset (&m, 0, sizeof (m));
8711 mono_marshal_set_callconv_from_modopt (method, csig);
8713 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8715 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8720 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8723 for (i = sig->param_count; i >= 0; i--)
8725 mono_metadata_free_marshal_spec (mspecs [i]);
8728 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8729 mono_error_assert_ok (&error);
8730 return compiled_ptr;
8733 sig = mono_method_signature (method);
8734 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8736 param_count = sig->param_count + sig->hasthis;
8738 for (i = 0; i < param_count; i++)
8739 mono_mb_emit_ldarg (mb, i);
8741 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8742 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8744 mono_mb_emit_op (mb, CEE_CALL, method);
8745 mono_mb_emit_byte (mb, CEE_RET);
8750 method = mono_mb_create (mb, sig, param_count, NULL);
8753 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8754 mono_error_assert_ok (&error);
8755 return compiled_ptr;
8761 * The code directly following this is the cache hit, value positive branch
8763 * This function takes a new method builder with 0 locals and adds two locals
8764 * to create multiple out-branches and the fall through state of having the object
8765 * on the stack after a cache miss
8768 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8769 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8770 MonoMethodBuilder *mb)
8774 /* allocate local 0 (pointer) obj_vtable */
8775 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8776 /* allocate local 1 (pointer) cached_vtable */
8777 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8780 mono_mb_emit_ldarg (mb, obj_arg_position);
8781 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8783 /*obj_vtable = obj->vtable;*/
8784 mono_mb_emit_ldarg (mb, obj_arg_position);
8785 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8786 mono_mb_emit_byte (mb, CEE_LDIND_I);
8787 mono_mb_emit_stloc (mb, 0);
8789 /* cached_vtable = *cache*/
8790 mono_mb_emit_ldarg (mb, cache_arg_position);
8791 mono_mb_emit_byte (mb, CEE_LDIND_I);
8792 mono_mb_emit_stloc (mb, 1);
8794 mono_mb_emit_ldloc (mb, 1);
8795 mono_mb_emit_byte (mb, CEE_LDC_I4);
8796 mono_mb_emit_i4 (mb, ~0x1);
8797 mono_mb_emit_byte (mb, CEE_CONV_I);
8798 mono_mb_emit_byte (mb, CEE_AND);
8799 mono_mb_emit_ldloc (mb, 0);
8800 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8801 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8803 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8804 mono_mb_emit_ldloc (mb, 1);
8805 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8806 mono_mb_emit_byte (mb, CEE_CONV_U);
8807 mono_mb_emit_byte (mb, CEE_AND);
8808 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8809 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8812 mono_mb_patch_branch (mb, cache_miss_pos);
8815 mono_mb_emit_ldarg (mb, obj_arg_position);
8816 mono_mb_emit_ldarg (mb, class_arg_position);
8817 mono_mb_emit_ldarg (mb, cache_arg_position);
8818 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8821 #endif /* DISABLE_JIT */
8824 * This does the equivalent of mono_object_castclass_with_cache.
8827 mono_marshal_get_castclass_with_cache (void)
8829 static MonoMethod *cached;
8831 MonoMethodBuilder *mb;
8832 MonoMethodSignature *sig;
8833 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8836 const int obj_arg_position = 0;
8837 const int class_arg_position = 1;
8838 const int cache_arg_position = 2;
8843 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8844 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8845 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8846 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8847 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8848 sig->ret = &mono_defaults.object_class->byval_arg;
8852 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8853 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8854 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8857 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8858 mono_mb_emit_ldarg (mb, obj_arg_position);
8859 mono_mb_emit_byte (mb, CEE_RET);
8862 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8863 mono_mb_patch_branch (mb, invalid_cast_pos);
8864 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8867 mono_mb_patch_branch (mb, return_null_pos);
8868 mono_mb_emit_byte (mb, CEE_LDNULL);
8869 mono_mb_emit_byte (mb, CEE_RET);
8870 #endif /* DISABLE_JIT */
8872 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8873 res = mono_mb_create (mb, sig, 8, info);
8876 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8877 mono_free_method (res);
8878 mono_metadata_free_method_signature (sig);
8885 /* this is an icall */
8887 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8890 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8891 if (mono_error_set_pending_exception (&error))
8894 #ifndef DISABLE_REMOTING
8895 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8899 uintptr_t cache_update = (uintptr_t)obj->vtable;
8901 cache_update = cache_update | 0x1;
8903 *cache = cache_update;
8909 * This does the equivalent of mono_object_isinst_with_cache.
8912 mono_marshal_get_isinst_with_cache (void)
8914 static MonoMethod *cached;
8916 MonoMethodBuilder *mb;
8917 MonoMethodSignature *sig;
8918 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8921 const int obj_arg_position = 0;
8922 const int class_arg_position = 1;
8923 const int cache_arg_position = 2;
8928 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8929 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8931 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8933 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8935 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8936 sig->ret = &mono_defaults.object_class->byval_arg;
8940 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8941 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8942 // Return the object gotten via the slow path.
8943 mono_mb_emit_byte (mb, CEE_RET);
8946 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8947 mono_mb_patch_branch (mb, return_null_pos);
8948 mono_mb_emit_byte (mb, CEE_LDNULL);
8949 mono_mb_emit_byte (mb, CEE_RET);
8952 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8953 mono_mb_emit_ldarg (mb, obj_arg_position);
8954 mono_mb_emit_byte (mb, CEE_RET);
8957 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8958 res = mono_mb_create (mb, sig, 8, info);
8961 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8962 mono_free_method (res);
8963 mono_metadata_free_method_signature (sig);
8971 * mono_marshal_get_isinst:
8972 * @klass: the type of the field
8974 * This method generates a function which can be used to check if an object is
8975 * an instance of the given type, icluding the case where the object is a proxy.
8976 * The generated function has the following signature:
8977 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8980 mono_marshal_get_isinst (MonoClass *klass)
8982 static MonoMethodSignature *isint_sig = NULL;
8986 int pos_was_ok, pos_end;
8987 #ifndef DISABLE_REMOTING
8988 int pos_end2, pos_failed;
8991 MonoMethodBuilder *mb;
8993 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8994 if ((res = mono_marshal_find_in_cache (cache, klass)))
8998 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8999 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
9000 isint_sig->ret = &mono_defaults.object_class->byval_arg;
9001 isint_sig->pinvoke = 0;
9004 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
9005 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
9008 mb->method->save_lmf = 1;
9011 /* check if the object is a proxy that needs special cast */
9012 mono_mb_emit_ldarg (mb, 0);
9013 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9014 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
9016 /* The result of MONO_CISINST can be:
9017 0) the type check succeeded
9018 1) the type check did not succeed
9019 2) a CanCastTo call is needed */
9020 #ifndef DISABLE_REMOTING
9021 mono_mb_emit_byte (mb, CEE_DUP);
9022 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9024 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
9025 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
9027 /* get the real proxy from the transparent proxy*/
9029 mono_mb_emit_ldarg (mb, 0);
9030 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9031 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9035 mono_mb_patch_branch (mb, pos_failed);
9036 mono_mb_emit_byte (mb, CEE_LDNULL);
9037 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
9041 mono_mb_patch_branch (mb, pos_was_ok);
9042 mono_mb_emit_byte (mb, CEE_POP);
9043 mono_mb_emit_ldarg (mb, 0);
9047 mono_mb_patch_branch (mb, pos_end);
9048 mono_mb_patch_branch (mb, pos_end2);
9049 mono_mb_emit_byte (mb, CEE_RET);
9051 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9055 mono_mb_emit_byte (mb, CEE_LDNULL);
9056 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9060 mono_mb_patch_branch (mb, pos_was_ok);
9061 mono_mb_emit_ldarg (mb, 0);
9065 mono_mb_patch_branch (mb, pos_end);
9066 mono_mb_emit_byte (mb, CEE_RET);
9067 #endif /* DISABLE_REMOTING */
9068 #endif /* DISABLE_JIT */
9070 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9071 info->d.proxy.klass = klass;
9072 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
9079 * mono_marshal_get_castclass:
9080 * @klass: the type of the field
9082 * This method generates a function which can be used to cast an object to
9083 * an instance of the given type, icluding the case where the object is a proxy.
9084 * The generated function has the following signature:
9085 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9088 mono_marshal_get_castclass (MonoClass *klass)
9090 static MonoMethodSignature *castclass_sig = NULL;
9093 #ifndef DISABLE_REMOTING
9094 int pos_was_ok, pos_was_ok2;
9097 MonoMethodBuilder *mb;
9100 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9101 if ((res = mono_marshal_find_in_cache (cache, klass)))
9104 if (!castclass_sig) {
9105 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9106 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9107 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9108 castclass_sig->pinvoke = 0;
9111 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9112 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9115 mb->method->save_lmf = 1;
9118 /* check if the object is a proxy that needs special cast */
9119 mono_mb_emit_ldarg (mb, 0);
9120 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9121 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9123 /* The result of MONO_CCASTCLASS can be:
9124 0) the cast is valid
9125 1) cast of unknown proxy type
9126 or an exception if the cast is is invalid
9128 #ifndef DISABLE_REMOTING
9129 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9131 /* get the real proxy from the transparent proxy*/
9133 mono_mb_emit_ldarg (mb, 0);
9134 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9135 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9138 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9141 mono_mb_patch_branch (mb, pos_was_ok);
9142 mono_mb_patch_branch (mb, pos_was_ok2);
9144 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
9145 mono_mb_emit_byte (mb, CEE_POP);
9146 #endif /* DISABLE_REMOTING */
9148 mono_mb_emit_ldarg (mb, 0);
9151 mono_mb_emit_byte (mb, CEE_RET);
9152 #endif /* DISABLE_JIT */
9154 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9156 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
9164 * mono_marshal_get_struct_to_ptr:
9167 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9170 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9172 MonoMethodBuilder *mb;
9173 static MonoMethod *stoptr = NULL;
9177 g_assert (klass != NULL);
9179 mono_marshal_load_type_info (klass);
9181 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9182 if (marshal_info->str_to_ptr)
9183 return marshal_info->str_to_ptr;
9186 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9189 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9192 if (klass->blittable) {
9193 mono_mb_emit_byte (mb, CEE_LDARG_1);
9194 mono_mb_emit_byte (mb, CEE_LDARG_0);
9195 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9196 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9197 mono_mb_emit_byte (mb, CEE_PREFIX1);
9198 mono_mb_emit_byte (mb, CEE_CPBLK);
9201 /* allocate local 0 (pointer) src_ptr */
9202 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9203 /* allocate local 1 (pointer) dst_ptr */
9204 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9205 /* allocate local 2 (boolean) delete_old */
9206 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9207 mono_mb_emit_byte (mb, CEE_LDARG_2);
9208 mono_mb_emit_stloc (mb, 2);
9210 /* initialize src_ptr to point to the start of object data */
9211 mono_mb_emit_byte (mb, CEE_LDARG_0);
9212 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9213 mono_mb_emit_stloc (mb, 0);
9215 /* initialize dst_ptr */
9216 mono_mb_emit_byte (mb, CEE_LDARG_1);
9217 mono_mb_emit_stloc (mb, 1);
9219 emit_struct_conv (mb, klass, FALSE);
9222 mono_mb_emit_byte (mb, CEE_RET);
9224 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9225 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9228 mono_marshal_lock ();
9229 if (!marshal_info->str_to_ptr)
9230 marshal_info->str_to_ptr = res;
9232 res = marshal_info->str_to_ptr;
9233 mono_marshal_unlock ();
9238 * mono_marshal_get_ptr_to_struct:
9241 * generates IL code for PtrToStructure (IntPtr src, object structure)
9244 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9246 MonoMethodBuilder *mb;
9247 static MonoMethodSignature *ptostr = NULL;
9251 g_assert (klass != NULL);
9253 mono_marshal_load_type_info (klass);
9255 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9256 if (marshal_info->ptr_to_str)
9257 return marshal_info->ptr_to_str;
9260 MonoMethodSignature *sig;
9262 /* Create the signature corresponding to
9263 static void PtrToStructure (IntPtr ptr, object structure);
9264 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9265 sig = mono_create_icall_signature ("void ptr object");
9266 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9268 mono_memory_barrier ();
9272 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9275 if (klass->blittable) {
9276 mono_mb_emit_byte (mb, CEE_LDARG_1);
9277 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9278 mono_mb_emit_byte (mb, CEE_LDARG_0);
9279 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9280 mono_mb_emit_byte (mb, CEE_PREFIX1);
9281 mono_mb_emit_byte (mb, CEE_CPBLK);
9284 /* allocate local 0 (pointer) src_ptr */
9285 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9286 /* allocate local 1 (pointer) dst_ptr */
9287 mono_mb_add_local (mb, &klass->this_arg);
9289 /* initialize src_ptr to point to the start of object data */
9290 mono_mb_emit_byte (mb, CEE_LDARG_0);
9291 mono_mb_emit_stloc (mb, 0);
9293 /* initialize dst_ptr */
9294 mono_mb_emit_byte (mb, CEE_LDARG_1);
9295 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9296 mono_mb_emit_stloc (mb, 1);
9298 emit_struct_conv (mb, klass, TRUE);
9301 mono_mb_emit_byte (mb, CEE_RET);
9303 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9304 res = mono_mb_create (mb, ptostr, 0, info);
9307 mono_marshal_lock ();
9308 if (!marshal_info->ptr_to_str)
9309 marshal_info->ptr_to_str = res;
9311 res = marshal_info->ptr_to_str;
9312 mono_marshal_unlock ();
9317 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9318 * This is used to avoid infinite recursion since it is hard to determine where to
9319 * replace a method with its synchronized wrapper, and where not.
9320 * The runtime should execute METHOD instead of the wrapper.
9323 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9325 MonoMethodBuilder *mb;
9327 MonoMethodSignature *sig;
9329 MonoGenericContext *ctx = NULL;
9330 MonoGenericContainer *container = NULL;
9332 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9333 ctx = &((MonoMethodInflated*)method)->context;
9334 method = ((MonoMethodInflated*)method)->declaring;
9335 container = mono_method_get_generic_container (method);
9337 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9338 g_assert (container);
9341 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9343 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9344 mono_mb_emit_byte (mb, CEE_RET);
9346 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9348 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9349 info->d.synchronized_inner.method = method;
9350 res = mono_mb_create (mb, sig, 0, info);
9354 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9355 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9361 * generates IL code for the synchronized wrapper: the generated method
9362 * calls METHOD while locking 'this' or the parent type.
9365 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9367 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9368 MonoMethodSignature *sig;
9369 MonoExceptionClause *clause;
9370 MonoMethodBuilder *mb;
9374 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9375 MonoGenericContext *ctx = NULL;
9376 MonoMethod *orig_method = NULL;
9377 MonoGenericContainer *container = NULL;
9381 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9384 /* FIXME: Support generic methods too */
9385 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9386 orig_method = method;
9387 ctx = &((MonoMethodInflated*)method)->context;
9388 method = ((MonoMethodInflated*)method)->declaring;
9389 container = mono_method_get_generic_container (method);
9391 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9392 g_assert (container);
9399 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9400 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9404 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9405 if ((res = mono_marshal_find_in_cache (cache, method)))
9409 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9412 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9414 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9415 info->d.synchronized.method = method;
9418 mb->skip_visibility = 1;
9420 if (!MONO_TYPE_IS_VOID (sig->ret))
9421 ret_local = mono_mb_add_local (mb, sig->ret);
9424 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9425 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9426 mono_class_set_type_load_failure (method->klass, "");
9428 /* This will throw the type load exception when the wrapper is compiled */
9429 mono_mb_emit_byte (mb, CEE_LDNULL);
9430 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9431 mono_mb_emit_byte (mb, CEE_POP);
9433 if (!MONO_TYPE_IS_VOID (sig->ret))
9434 mono_mb_emit_ldloc (mb, ret_local);
9435 mono_mb_emit_byte (mb, CEE_RET);
9438 res = mono_mb_create_and_cache_full (cache, method,
9439 mb, sig, sig->param_count + 16, info, NULL);
9447 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9448 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9450 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9451 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9454 mono_marshal_lock ();
9456 if (!enter_method) {
9457 MonoMethodDesc *desc;
9459 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9460 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9461 g_assert (enter_method);
9462 mono_method_desc_free (desc);
9464 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9465 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9466 g_assert (exit_method);
9467 mono_method_desc_free (desc);
9469 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9470 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9471 g_assert (gettypefromhandle_method);
9472 mono_method_desc_free (desc);
9475 mono_marshal_unlock ();
9478 /* Push this or the type object */
9479 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9480 /* We have special handling for this in the JIT */
9481 int index = mono_mb_add_data (mb, method->klass);
9482 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9483 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9484 mono_mb_emit_i4 (mb, index);
9486 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9489 mono_mb_emit_ldarg (mb, 0);
9490 mono_mb_emit_stloc (mb, this_local);
9492 /* Call Monitor::Enter() */
9493 mono_mb_emit_ldloc (mb, this_local);
9494 mono_mb_emit_ldloc_addr (mb, taken_local);
9495 mono_mb_emit_managed_call (mb, enter_method, NULL);
9497 clause->try_offset = mono_mb_get_label (mb);
9499 /* Call the method */
9501 mono_mb_emit_ldarg (mb, 0);
9502 for (i = 0; i < sig->param_count; i++)
9503 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9507 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9508 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9510 mono_mb_emit_managed_call (mb, method, NULL);
9513 if (!MONO_TYPE_IS_VOID (sig->ret))
9514 mono_mb_emit_stloc (mb, ret_local);
9516 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9518 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9519 clause->handler_offset = mono_mb_get_label (mb);
9521 /* Call Monitor::Exit() if needed */
9522 mono_mb_emit_ldloc (mb, taken_local);
9523 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9524 mono_mb_emit_ldloc (mb, this_local);
9525 mono_mb_emit_managed_call (mb, exit_method, NULL);
9526 mono_mb_patch_branch (mb, pos2);
9527 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9529 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9531 mono_mb_patch_branch (mb, pos);
9532 if (!MONO_TYPE_IS_VOID (sig->ret))
9533 mono_mb_emit_ldloc (mb, ret_local);
9534 mono_mb_emit_byte (mb, CEE_RET);
9536 mono_mb_set_clauses (mb, 1, clause);
9541 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9542 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9544 res = mono_mb_create_and_cache_full (cache, method,
9545 mb, sig, sig->param_count + 16, info, NULL);
9554 * the returned method calls 'method' unboxing the this argument
9557 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9559 MonoMethodSignature *sig = mono_method_signature (method);
9561 MonoMethodBuilder *mb;
9566 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9568 if ((res = mono_marshal_find_in_cache (cache, method)))
9571 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9573 g_assert (sig->hasthis);
9576 mono_mb_emit_ldarg (mb, 0);
9577 mono_mb_emit_icon (mb, sizeof (MonoObject));
9578 mono_mb_emit_byte (mb, CEE_ADD);
9579 for (i = 0; i < sig->param_count; ++i)
9580 mono_mb_emit_ldarg (mb, i + 1);
9581 mono_mb_emit_managed_call (mb, method, NULL);
9582 mono_mb_emit_byte (mb, CEE_RET);
9585 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9586 info->d.unbox.method = method;
9588 res = mono_mb_create_and_cache_full (cache, method,
9589 mb, sig, sig->param_count + 16, info, NULL);
9592 /* mono_method_print_code (res); */
9598 STELEMREF_OBJECT, /*no check at all*/
9599 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9600 STELEMREF_CLASS, /*only the klass->parents check*/
9601 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9602 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9603 STELEMREF_KIND_COUNT
9606 static const char *strelemref_wrapper_name[] = {
9607 "object", "sealed_class", "class", "interface", "complex"
9611 is_monomorphic_array (MonoClass *klass)
9613 MonoClass *element_class;
9614 if (klass->rank != 1)
9617 element_class = klass->element_class;
9618 return mono_class_is_sealed (element_class) || element_class->valuetype;
9622 get_virtual_stelemref_kind (MonoClass *element_class)
9624 if (element_class == mono_defaults.object_class)
9625 return STELEMREF_OBJECT;
9626 if (is_monomorphic_array (element_class))
9627 return STELEMREF_SEALED_CLASS;
9628 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9629 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9630 #ifdef COMPRESSED_INTERFACE_BITMAP
9631 return STELEMREF_COMPLEX;
9633 return STELEMREF_INTERFACE;
9635 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9636 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9637 return STELEMREF_COMPLEX;
9638 if (mono_class_is_sealed (element_class))
9639 return STELEMREF_SEALED_CLASS;
9640 return STELEMREF_CLASS;
9646 load_array_element_address (MonoMethodBuilder *mb)
9648 mono_mb_emit_ldarg (mb, 0);
9649 mono_mb_emit_ldarg (mb, 1);
9650 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9654 load_array_class (MonoMethodBuilder *mb, int aklass)
9656 mono_mb_emit_ldarg (mb, 0);
9657 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9658 mono_mb_emit_byte (mb, CEE_LDIND_I);
9659 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9660 mono_mb_emit_byte (mb, CEE_LDIND_I);
9661 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9662 mono_mb_emit_byte (mb, CEE_LDIND_I);
9663 mono_mb_emit_stloc (mb, aklass);
9667 load_value_class (MonoMethodBuilder *mb, int vklass)
9669 mono_mb_emit_ldarg (mb, 2);
9670 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9671 mono_mb_emit_byte (mb, CEE_LDIND_I);
9672 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9673 mono_mb_emit_byte (mb, CEE_LDIND_I);
9674 mono_mb_emit_stloc (mb, vklass);
9680 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9682 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9683 printf ("slow vstore of %s\n", name);
9690 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9691 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9692 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9693 * - Add a case for arrays of arrays.
9696 get_virtual_stelemref_wrapper (int kind)
9698 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9699 static MonoMethodSignature *signature;
9700 MonoMethodBuilder *mb;
9703 const char *param_names [16];
9704 guint32 b1, b2, b3, b4;
9705 int aklass, vklass, vtable, uiid;
9706 int array_slot_addr;
9709 if (cached_methods [kind])
9710 return cached_methods [kind];
9712 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9713 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9717 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9719 /* void this::stelemref (size_t idx, void* value) */
9720 sig->ret = &mono_defaults.void_class->byval_arg;
9721 sig->hasthis = TRUE;
9722 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9723 sig->params [1] = &mono_defaults.object_class->byval_arg;
9728 param_names [0] = "index";
9729 param_names [1] = "value";
9730 mono_mb_set_param_names (mb, param_names);
9732 /*For now simply call plain old stelemref*/
9734 case STELEMREF_OBJECT:
9735 /* ldelema (implicit bound check) */
9736 load_array_element_address (mb);
9738 mono_mb_emit_ldarg (mb, 2);
9739 mono_mb_emit_byte (mb, CEE_STIND_REF);
9740 mono_mb_emit_byte (mb, CEE_RET);
9743 case STELEMREF_COMPLEX:
9745 <ldelema (bound check)>
9748 if (!mono_object_isinst (value, aklass))
9752 *array_slot_addr = value;
9755 throw new ArrayTypeMismatchException ();
9758 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9759 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9763 /*Use this to debug/record stores that are going thru the slow path*/
9764 MonoMethodSignature *csig;
9765 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9766 csig->ret = &mono_defaults.void_class->byval_arg;
9767 csig->params [0] = &mono_defaults.object_class->byval_arg;
9768 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9769 csig->params [2] = &mono_defaults.object_class->byval_arg;
9770 mono_mb_emit_ldarg (mb, 0);
9771 mono_mb_emit_ldarg (mb, 1);
9772 mono_mb_emit_ldarg (mb, 2);
9773 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9777 /* ldelema (implicit bound check) */
9778 load_array_element_address (mb);
9779 mono_mb_emit_stloc (mb, array_slot_addr);
9781 /* if (!value) goto do_store */
9782 mono_mb_emit_ldarg (mb, 2);
9783 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9785 /* aklass = array->vtable->klass->element_class */
9786 load_array_class (mb, aklass);
9788 /*if (mono_object_isinst (value, aklass)) */
9789 mono_mb_emit_ldarg (mb, 2);
9790 mono_mb_emit_ldloc (mb, aklass);
9791 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9792 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9795 mono_mb_patch_branch (mb, b1);
9796 mono_mb_emit_ldloc (mb, array_slot_addr);
9797 mono_mb_emit_ldarg (mb, 2);
9798 mono_mb_emit_byte (mb, CEE_STIND_REF);
9799 mono_mb_emit_byte (mb, CEE_RET);
9802 mono_mb_patch_branch (mb, b2);
9804 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9807 case STELEMREF_SEALED_CLASS:
9809 <ldelema (bound check)>
9813 aklass = array->vtable->klass->element_class;
9814 vklass = value->vtable->klass;
9816 if (vklass != aklass)
9820 *array_slot_addr = value;
9823 throw new ArrayTypeMismatchException ();
9825 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9826 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9827 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9830 /* ldelema (implicit bound check) */
9831 load_array_element_address (mb);
9832 mono_mb_emit_stloc (mb, array_slot_addr);
9834 /* if (!value) goto do_store */
9835 mono_mb_emit_ldarg (mb, 2);
9836 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9838 /* aklass = array->vtable->klass->element_class */
9839 load_array_class (mb, aklass);
9841 /* vklass = value->vtable->klass */
9842 load_value_class (mb, vklass);
9844 /*if (vklass != aklass) goto do_exception; */
9845 mono_mb_emit_ldloc (mb, aklass);
9846 mono_mb_emit_ldloc (mb, vklass);
9847 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9850 mono_mb_patch_branch (mb, b1);
9851 mono_mb_emit_ldloc (mb, array_slot_addr);
9852 mono_mb_emit_ldarg (mb, 2);
9853 mono_mb_emit_byte (mb, CEE_STIND_REF);
9854 mono_mb_emit_byte (mb, CEE_RET);
9857 mono_mb_patch_branch (mb, b2);
9858 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9861 case STELEMREF_CLASS:
9864 <ldelema (bound check)>
9868 aklass = array->vtable->klass->element_class;
9869 vklass = value->vtable->klass;
9871 if (vklass->idepth < aklass->idepth)
9874 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9878 *array_slot_addr = value;
9882 throw new ArrayTypeMismatchException ();
9884 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9885 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9886 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9888 /* ldelema (implicit bound check) */
9889 load_array_element_address (mb);
9890 mono_mb_emit_stloc (mb, array_slot_addr);
9892 /* if (!value) goto do_store */
9893 mono_mb_emit_ldarg (mb, 2);
9894 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9896 /* aklass = array->vtable->klass->element_class */
9897 load_array_class (mb, aklass);
9899 /* vklass = value->vtable->klass */
9900 load_value_class (mb, vklass);
9902 /*if (mono_object_isinst (value, aklass)) */
9903 mono_mb_emit_ldarg (mb, 2);
9904 mono_mb_emit_ldloc (mb, aklass);
9905 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9906 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9908 /* if (vklass->idepth < aklass->idepth) goto failue */
9909 mono_mb_emit_ldloc (mb, vklass);
9910 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9911 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9913 mono_mb_emit_ldloc (mb, aklass);
9914 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9915 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9917 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9919 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9920 mono_mb_emit_ldloc (mb, vklass);
9921 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9922 mono_mb_emit_byte (mb, CEE_LDIND_I);
9924 mono_mb_emit_ldloc (mb, aklass);
9925 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9926 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9927 mono_mb_emit_icon (mb, 1);
9928 mono_mb_emit_byte (mb, CEE_SUB);
9929 mono_mb_emit_icon (mb, sizeof (void*));
9930 mono_mb_emit_byte (mb, CEE_MUL);
9931 mono_mb_emit_byte (mb, CEE_ADD);
9932 mono_mb_emit_byte (mb, CEE_LDIND_I);
9934 mono_mb_emit_ldloc (mb, aklass);
9935 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9938 mono_mb_patch_branch (mb, b1);
9939 mono_mb_emit_ldloc (mb, array_slot_addr);
9940 mono_mb_emit_ldarg (mb, 2);
9941 mono_mb_emit_byte (mb, CEE_STIND_REF);
9942 mono_mb_emit_byte (mb, CEE_RET);
9945 mono_mb_patch_branch (mb, b2);
9946 mono_mb_patch_branch (mb, b3);
9947 mono_mb_patch_branch (mb, b4);
9949 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9952 case STELEMREF_INTERFACE:
9959 klass = array->obj.vtable->klass->element_class;
9961 uiid = klass->interface_id;
9962 if (uiid > vt->max_interface_id)
9964 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9967 mono_array_setref (array, index, value);
9970 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9972 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9973 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9974 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9975 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9977 /* ldelema (implicit bound check) */
9978 load_array_element_address (mb);
9979 mono_mb_emit_stloc (mb, array_slot_addr);
9981 /* if (!value) goto do_store */
9982 mono_mb_emit_ldarg (mb, 2);
9983 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9985 /* klass = array->vtable->klass->element_class */
9986 load_array_class (mb, aklass);
9988 /* vt = value->vtable */
9989 mono_mb_emit_ldarg (mb, 2);
9990 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9991 mono_mb_emit_byte (mb, CEE_LDIND_I);
9992 mono_mb_emit_stloc (mb, vtable);
9994 /* uiid = klass->interface_id; */
9995 mono_mb_emit_ldloc (mb, aklass);
9996 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9997 mono_mb_emit_byte (mb, CEE_LDIND_U4);
9998 mono_mb_emit_stloc (mb, uiid);
10000 /*if (uiid > vt->max_interface_id)*/
10001 mono_mb_emit_ldloc (mb, uiid);
10002 mono_mb_emit_ldloc (mb, vtable);
10003 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
10004 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10005 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10007 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10009 /*vt->interface_bitmap*/
10010 mono_mb_emit_ldloc (mb, vtable);
10011 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10012 mono_mb_emit_byte (mb, CEE_LDIND_I);
10015 mono_mb_emit_ldloc (mb, uiid);
10016 mono_mb_emit_icon (mb, 3);
10017 mono_mb_emit_byte (mb, CEE_SHR_UN);
10019 /*vt->interface_bitmap [(uiid) >> 3]*/
10020 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10021 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10023 /*(1 << ((uiid)&7)))*/
10024 mono_mb_emit_icon (mb, 1);
10025 mono_mb_emit_ldloc (mb, uiid);
10026 mono_mb_emit_icon (mb, 7);
10027 mono_mb_emit_byte (mb, CEE_AND);
10028 mono_mb_emit_byte (mb, CEE_SHL);
10030 /*bitwise and the whole thing*/
10031 mono_mb_emit_byte (mb, CEE_AND);
10032 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10035 mono_mb_patch_branch (mb, b1);
10036 mono_mb_emit_ldloc (mb, array_slot_addr);
10037 mono_mb_emit_ldarg (mb, 2);
10038 mono_mb_emit_byte (mb, CEE_STIND_REF);
10039 mono_mb_emit_byte (mb, CEE_RET);
10041 /* do_exception: */
10042 mono_mb_patch_branch (mb, b2);
10043 mono_mb_patch_branch (mb, b3);
10044 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10048 mono_mb_emit_ldarg (mb, 0);
10049 mono_mb_emit_ldarg (mb, 1);
10050 mono_mb_emit_ldarg (mb, 2);
10051 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10052 mono_mb_emit_byte (mb, CEE_RET);
10055 #endif /* DISABLE_JIT */
10056 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10057 info->d.virtual_stelemref.kind = kind;
10058 res = mono_mb_create (mb, signature, 4, info);
10059 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10061 mono_marshal_lock ();
10062 if (!cached_methods [kind]) {
10063 cached_methods [kind] = res;
10064 mono_marshal_unlock ();
10066 mono_marshal_unlock ();
10067 mono_free_method (res);
10071 return cached_methods [kind];
10075 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10079 g_assert (array_class->rank == 1);
10080 kind = get_virtual_stelemref_kind (array_class->element_class);
10082 return get_virtual_stelemref_wrapper (kind);
10086 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10091 *nwrappers = STELEMREF_KIND_COUNT;
10092 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10093 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10094 res [i] = get_virtual_stelemref_wrapper (i);
10099 mono_marshal_get_stelemref (void)
10101 static MonoMethod* ret = NULL;
10102 MonoMethodSignature *sig;
10103 MonoMethodBuilder *mb;
10106 guint32 b1, b2, b3, b4;
10108 int aklass, vklass;
10109 int array_slot_addr;
10114 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10117 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10119 /* void stelemref (void* array, int idx, void* value) */
10120 sig->ret = &mono_defaults.void_class->byval_arg;
10121 sig->params [0] = &mono_defaults.object_class->byval_arg;
10122 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10123 sig->params [2] = &mono_defaults.object_class->byval_arg;
10125 #ifndef DISABLE_JIT
10126 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10127 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10128 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10132 <ldelema (bound check)>
10136 aklass = array->vtable->klass->element_class;
10137 vklass = value->vtable->klass;
10139 if (vklass->idepth < aklass->idepth)
10142 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10146 *array_slot_addr = value;
10150 if (mono_object_isinst (value, aklass))
10153 throw new ArrayTypeMismatchException ();
10156 /* ldelema (implicit bound check) */
10157 mono_mb_emit_ldarg (mb, 0);
10158 mono_mb_emit_ldarg (mb, 1);
10159 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10160 mono_mb_emit_stloc (mb, array_slot_addr);
10162 /* if (!value) goto do_store */
10163 mono_mb_emit_ldarg (mb, 2);
10164 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10166 /* aklass = array->vtable->klass->element_class */
10167 mono_mb_emit_ldarg (mb, 0);
10168 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10169 mono_mb_emit_byte (mb, CEE_LDIND_I);
10170 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10171 mono_mb_emit_byte (mb, CEE_LDIND_I);
10172 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10173 mono_mb_emit_byte (mb, CEE_LDIND_I);
10174 mono_mb_emit_stloc (mb, aklass);
10176 /* vklass = value->vtable->klass */
10177 mono_mb_emit_ldarg (mb, 2);
10178 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10179 mono_mb_emit_byte (mb, CEE_LDIND_I);
10180 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10181 mono_mb_emit_byte (mb, CEE_LDIND_I);
10182 mono_mb_emit_stloc (mb, vklass);
10184 /* if (vklass->idepth < aklass->idepth) goto failue */
10185 mono_mb_emit_ldloc (mb, vklass);
10186 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10187 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10189 mono_mb_emit_ldloc (mb, aklass);
10190 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10191 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10193 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10195 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10196 mono_mb_emit_ldloc (mb, vklass);
10197 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10198 mono_mb_emit_byte (mb, CEE_LDIND_I);
10200 mono_mb_emit_ldloc (mb, aklass);
10201 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10202 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10203 mono_mb_emit_icon (mb, 1);
10204 mono_mb_emit_byte (mb, CEE_SUB);
10205 mono_mb_emit_icon (mb, sizeof (void*));
10206 mono_mb_emit_byte (mb, CEE_MUL);
10207 mono_mb_emit_byte (mb, CEE_ADD);
10208 mono_mb_emit_byte (mb, CEE_LDIND_I);
10210 mono_mb_emit_ldloc (mb, aklass);
10212 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10214 copy_pos = mono_mb_get_label (mb);
10216 mono_mb_patch_branch (mb, b1);
10217 mono_mb_emit_ldloc (mb, array_slot_addr);
10218 mono_mb_emit_ldarg (mb, 2);
10219 mono_mb_emit_byte (mb, CEE_STIND_REF);
10221 mono_mb_emit_byte (mb, CEE_RET);
10224 mono_mb_patch_branch (mb, b2);
10225 mono_mb_patch_branch (mb, b3);
10227 mono_mb_emit_ldarg (mb, 2);
10228 mono_mb_emit_ldloc (mb, aklass);
10229 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10231 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10232 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10233 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10235 mono_mb_emit_byte (mb, CEE_RET);
10237 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10238 ret = mono_mb_create (mb, sig, 4, info);
10245 * mono_marshal_get_gsharedvt_in_wrapper:
10247 * This wrapper handles calls from normal code to gsharedvt code.
10250 mono_marshal_get_gsharedvt_in_wrapper (void)
10252 static MonoMethod* ret = NULL;
10253 MonoMethodSignature *sig;
10254 MonoMethodBuilder *mb;
10260 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10262 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10263 sig->ret = &mono_defaults.void_class->byval_arg;
10265 #ifndef DISABLE_JIT
10267 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10269 mono_mb_emit_byte (mb, CEE_RET);
10271 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10272 ret = mono_mb_create (mb, sig, 4, info);
10279 * mono_marshal_get_gsharedvt_out_wrapper:
10281 * This wrapper handles calls from gsharedvt code to normal code.
10284 mono_marshal_get_gsharedvt_out_wrapper (void)
10286 static MonoMethod* ret = NULL;
10287 MonoMethodSignature *sig;
10288 MonoMethodBuilder *mb;
10294 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10296 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10297 sig->ret = &mono_defaults.void_class->byval_arg;
10299 #ifndef DISABLE_JIT
10301 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10303 mono_mb_emit_byte (mb, CEE_RET);
10305 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10306 ret = mono_mb_create (mb, sig, 4, info);
10315 MonoMethod *method;
10318 /* LOCKING: vars accessed under the marshal lock */
10319 static ArrayElemAddr *elem_addr_cache = NULL;
10320 static int elem_addr_cache_size = 0;
10321 static int elem_addr_cache_next = 0;
10324 * mono_marshal_get_array_address:
10325 * @rank: rank of the array type
10326 * @elem_size: size in bytes of an element of an array.
10328 * Returns a MonoMethod that implements the code to get the address
10329 * of an element in a multi-dimenasional array of @rank dimensions.
10330 * The returned method takes an array as the first argument and then
10331 * @rank indexes for the @rank dimensions.
10332 * If ELEM_SIZE is 0, read the array size from the array object.
10335 mono_marshal_get_array_address (int rank, int elem_size)
10338 MonoMethodBuilder *mb;
10339 MonoMethodSignature *sig;
10342 int i, bounds, ind, realidx;
10343 int branch_pos, *branch_positions;
10347 mono_marshal_lock ();
10348 for (i = 0; i < elem_addr_cache_next; ++i) {
10349 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10350 ret = elem_addr_cache [i].method;
10354 mono_marshal_unlock ();
10358 branch_positions = g_new0 (int, rank);
10360 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10362 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10363 sig->ret = &mono_defaults.int_class->byval_arg;
10364 sig->params [0] = &mono_defaults.object_class->byval_arg;
10365 for (i = 0; i < rank; ++i) {
10366 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10369 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10370 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10373 #ifndef DISABLE_JIT
10374 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10375 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10376 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10378 /* bounds = array->bounds; */
10379 mono_mb_emit_ldarg (mb, 0);
10380 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10381 mono_mb_emit_byte (mb, CEE_LDIND_I);
10382 mono_mb_emit_stloc (mb, bounds);
10384 /* ind is the overall element index, realidx is the partial index in a single dimension */
10385 /* ind = idx0 - bounds [0].lower_bound */
10386 mono_mb_emit_ldarg (mb, 1);
10387 mono_mb_emit_ldloc (mb, bounds);
10388 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10389 mono_mb_emit_byte (mb, CEE_ADD);
10390 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10391 mono_mb_emit_byte (mb, CEE_SUB);
10392 mono_mb_emit_stloc (mb, ind);
10393 /* if (ind >= bounds [0].length) goto exeception; */
10394 mono_mb_emit_ldloc (mb, ind);
10395 mono_mb_emit_ldloc (mb, bounds);
10396 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10397 mono_mb_emit_byte (mb, CEE_ADD);
10398 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10399 /* note that we use unsigned comparison */
10400 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10402 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10403 * We could also decide to ignore the passed elem_size and get it
10404 * from the array object, to reduce the number of methods we generate:
10405 * the additional cost is 3 memory loads and a non-immediate mul.
10407 for (i = 1; i < rank; ++i) {
10408 /* realidx = idxi - bounds [i].lower_bound */
10409 mono_mb_emit_ldarg (mb, 1 + i);
10410 mono_mb_emit_ldloc (mb, bounds);
10411 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10412 mono_mb_emit_byte (mb, CEE_ADD);
10413 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10414 mono_mb_emit_byte (mb, CEE_SUB);
10415 mono_mb_emit_stloc (mb, realidx);
10416 /* if (realidx >= bounds [i].length) goto exeception; */
10417 mono_mb_emit_ldloc (mb, realidx);
10418 mono_mb_emit_ldloc (mb, bounds);
10419 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10420 mono_mb_emit_byte (mb, CEE_ADD);
10421 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10422 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10423 /* ind = ind * bounds [i].length + realidx */
10424 mono_mb_emit_ldloc (mb, ind);
10425 mono_mb_emit_ldloc (mb, bounds);
10426 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10427 mono_mb_emit_byte (mb, CEE_ADD);
10428 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10429 mono_mb_emit_byte (mb, CEE_MUL);
10430 mono_mb_emit_ldloc (mb, realidx);
10431 mono_mb_emit_byte (mb, CEE_ADD);
10432 mono_mb_emit_stloc (mb, ind);
10435 /* return array->vector + ind * element_size */
10436 mono_mb_emit_ldarg (mb, 0);
10437 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10438 mono_mb_emit_ldloc (mb, ind);
10440 mono_mb_emit_icon (mb, elem_size);
10442 /* Load arr->vtable->klass->sizes.element_class */
10443 mono_mb_emit_ldarg (mb, 0);
10444 mono_mb_emit_byte (mb, CEE_CONV_I);
10445 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10446 mono_mb_emit_byte (mb, CEE_ADD);
10447 mono_mb_emit_byte (mb, CEE_LDIND_I);
10448 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10449 mono_mb_emit_byte (mb, CEE_ADD);
10450 mono_mb_emit_byte (mb, CEE_LDIND_I);
10451 /* sizes is an union, so this reads sizes.element_size */
10452 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10453 mono_mb_emit_byte (mb, CEE_ADD);
10454 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10456 mono_mb_emit_byte (mb, CEE_MUL);
10457 mono_mb_emit_byte (mb, CEE_ADD);
10458 mono_mb_emit_byte (mb, CEE_RET);
10460 /* patch the branches to get here and throw */
10461 for (i = 1; i < rank; ++i) {
10462 mono_mb_patch_branch (mb, branch_positions [i]);
10464 mono_mb_patch_branch (mb, branch_pos);
10465 /* throw exception */
10466 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10468 g_free (branch_positions);
10469 #endif /* DISABLE_JIT */
10471 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10472 info->d.element_addr.rank = rank;
10473 info->d.element_addr.elem_size = elem_size;
10474 ret = mono_mb_create (mb, sig, 4, info);
10477 /* cache the result */
10479 mono_marshal_lock ();
10480 for (i = 0; i < elem_addr_cache_next; ++i) {
10481 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10482 /* FIXME: free ret */
10483 ret = elem_addr_cache [i].method;
10489 if (elem_addr_cache_next >= elem_addr_cache_size) {
10490 int new_size = elem_addr_cache_size + 4;
10491 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10492 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10493 g_free (elem_addr_cache);
10494 elem_addr_cache = new_array;
10495 elem_addr_cache_size = new_size;
10497 elem_addr_cache [elem_addr_cache_next].rank = rank;
10498 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10499 elem_addr_cache [elem_addr_cache_next].method = ret;
10500 elem_addr_cache_next ++;
10502 mono_marshal_unlock ();
10507 * mono_marshal_get_array_accessor_wrapper:
10509 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10512 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10514 MonoMethodSignature *sig;
10515 MonoMethodBuilder *mb;
10519 MonoGenericContext *ctx = NULL;
10520 MonoMethod *orig_method = NULL;
10521 MonoGenericContainer *container = NULL;
10525 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10526 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10527 * FIXME: Use generic methods.
10534 g_assert_not_reached ();
10536 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10537 if ((res = mono_marshal_find_in_cache (cache, method)))
10541 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10544 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10546 #ifndef DISABLE_JIT
10547 /* Call the method */
10549 mono_mb_emit_ldarg (mb, 0);
10550 for (i = 0; i < sig->param_count; i++)
10551 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10555 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10556 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10558 mono_mb_emit_managed_call (mb, method, NULL);
10560 mono_mb_emit_byte (mb, CEE_RET);
10563 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10564 info->d.array_accessor.method = method;
10568 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10569 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10571 res = mono_mb_create_and_cache_full (cache, method,
10572 mb, sig, sig->param_count + 16,
10581 static inline void*
10582 mono_marshal_alloc_co_task_mem (size_t size)
10584 if ((gulong)size == 0)
10585 /* This returns a valid pointer for size 0 on MS.NET */
10588 return g_try_malloc ((gulong)size);
10593 mono_marshal_alloc (gulong size, MonoError *error)
10597 mono_error_init (error);
10599 res = mono_marshal_alloc_co_task_mem (size);
10601 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10606 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10608 ves_icall_marshal_alloc (gulong size)
10611 void *ret = mono_marshal_alloc (size, &error);
10612 if (!mono_error_ok (&error)) {
10613 mono_error_set_pending_exception (&error);
10622 mono_marshal_free_co_task_mem (void *ptr)
10630 mono_marshal_free (gpointer ptr)
10632 mono_marshal_free_co_task_mem (ptr);
10636 mono_marshal_free_array (gpointer *ptr, int size)
10643 for (i = 0; i < size; i++)
10649 mono_marshal_string_to_utf16 (MonoString *s)
10651 return s ? mono_string_chars (s) : NULL;
10654 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10656 mono_marshal_string_to_utf16_copy (MonoString *s)
10662 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10663 if (!mono_error_ok (&error)) {
10664 mono_error_set_pending_exception (&error);
10667 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10668 res [mono_string_length (s)] = 0;
10674 * mono_marshal_set_last_error:
10676 * This function is invoked to set the last error value from a P/Invoke call
10677 * which has SetLastError set.
10680 mono_marshal_set_last_error (void)
10683 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10685 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10690 mono_marshal_set_last_error_windows (int error)
10693 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10698 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10699 gpointer dest, gint32 length)
10704 MONO_CHECK_ARG_NULL (src,);
10705 MONO_CHECK_ARG_NULL (dest,);
10707 if (src->obj.vtable->klass->rank != 1) {
10708 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10711 if (start_index < 0) {
10712 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10716 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10719 if (start_index + length > mono_array_length (src)) {
10720 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10724 element_size = mono_array_element_size (src->obj.vtable->klass);
10726 /* no references should be involved */
10727 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10729 memcpy (dest, source_addr, length * element_size);
10733 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10734 MonoArray *dest, gint32 length)
10739 MONO_CHECK_ARG_NULL (src,);
10740 MONO_CHECK_ARG_NULL (dest,);
10742 if (dest->obj.vtable->klass->rank != 1) {
10743 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10746 if (start_index < 0) {
10747 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10751 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10754 if (start_index + length > mono_array_length (dest)) {
10755 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10758 element_size = mono_array_element_size (dest->obj.vtable->klass);
10760 /* no references should be involved */
10761 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10763 memcpy (dest_addr, src, length * element_size);
10767 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10772 return mono_string_new (mono_domain_get (), ptr);
10776 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10779 MonoString *result = NULL;
10780 mono_error_init (&error);
10782 mono_error_set_argument_null (&error, "ptr", "");
10784 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10785 mono_error_set_pending_exception (&error);
10790 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10793 MonoString *res = NULL;
10794 MonoDomain *domain = mono_domain_get ();
10804 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10805 if (!mono_error_ok (&error)) {
10806 mono_error_set_pending_exception (&error);
10813 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10816 MonoString *res = NULL;
10817 MonoDomain *domain = mono_domain_get ();
10819 mono_error_init (&error);
10823 mono_error_set_argument_null (&error, "ptr", "");
10825 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10828 if (!mono_error_ok (&error))
10829 mono_error_set_pending_exception (&error);
10834 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10836 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10840 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10846 MONO_CHECK_ARG_NULL (rtype, 0);
10848 type = rtype->type;
10849 klass = mono_class_from_mono_type (type);
10850 if (!mono_class_init (klass)) {
10851 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10855 layout = (mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK);
10857 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10858 return sizeof (gpointer);
10859 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10861 MonoException *exc;
10863 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10864 exc = mono_get_exception_argument ("t", msg);
10866 mono_set_pending_exception (exc);
10870 return mono_class_native_size (klass, NULL);
10874 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10877 MonoMethod *method;
10880 MONO_CHECK_ARG_NULL (obj,);
10881 MONO_CHECK_ARG_NULL (dst,);
10883 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10887 pa [2] = &delete_old;
10889 mono_runtime_invoke_checked (method, NULL, pa, &error);
10890 if (!mono_error_ok (&error))
10891 mono_error_set_pending_exception (&error);
10895 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10897 MonoMethod *method;
10900 mono_error_init (error);
10902 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10907 mono_runtime_invoke_checked (method, NULL, pa, error);
10911 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10916 MONO_CHECK_ARG_NULL (src,);
10917 MONO_CHECK_ARG_NULL (dst,);
10919 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10921 if (t->type == MONO_TYPE_VALUETYPE) {
10922 MonoException *exc;
10925 tmp = g_strdup_printf ("Destination is a boxed value type.");
10926 exc = mono_get_exception_argument ("dst", tmp);
10929 mono_set_pending_exception (exc);
10933 ptr_to_structure (src, dst, &error);
10934 if (!mono_error_ok (&error))
10935 mono_error_set_pending_exception (&error);
10939 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10943 MonoDomain *domain = mono_domain_get ();
10948 MONO_CHECK_ARG_NULL (type, NULL);
10950 klass = mono_class_from_mono_type (type->type);
10951 if (!mono_class_init (klass)) {
10952 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10956 res = mono_object_new_checked (domain, klass, &error);
10957 if (!mono_error_ok (&error)) {
10958 mono_error_set_pending_exception (&error);
10962 ptr_to_structure (src, res, &error);
10963 if (!mono_error_ok (&error)) {
10964 mono_error_set_pending_exception (&error);
10972 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10975 MonoMarshalType *info;
10978 int match_index = -1;
10980 MONO_CHECK_ARG_NULL (type, 0);
10981 MONO_CHECK_ARG_NULL (field_name, 0);
10983 fname = mono_string_to_utf8_checked (field_name, &error);
10984 if (mono_error_set_pending_exception (&error))
10986 klass = mono_class_from_mono_type (type->type);
10987 if (!mono_class_init (klass)) {
10988 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10992 while (klass && match_index == -1) {
10993 MonoClassField* field;
10995 gpointer iter = NULL;
10996 while ((field = mono_class_get_fields (klass, &iter))) {
10997 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10999 if (!strcmp (fname, mono_field_get_name (field))) {
11006 if (match_index == -1)
11007 klass = klass->parent;
11012 if(match_index == -1) {
11013 MonoException* exc;
11016 /* Get back original class instance */
11017 klass = mono_class_from_mono_type (type->type);
11019 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
11020 exc = mono_get_exception_argument ("fieldName", tmp);
11023 mono_set_pending_exception ((MonoException*)exc);
11027 info = mono_marshal_load_type_info (klass);
11028 return info->fields [match_index].offset;
11033 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11036 char *ret = mono_string_to_utf8_checked (string, &error);
11037 mono_error_set_pending_exception (&error);
11042 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11044 if (string == NULL)
11047 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
11049 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11050 res [mono_string_length (string)] = 0;
11054 #endif /* !HOST_WIN32 */
11057 mono_struct_delete_old (MonoClass *klass, char *ptr)
11059 MonoMarshalType *info;
11062 info = mono_marshal_load_type_info (klass);
11064 for (i = 0; i < info->num_fields; i++) {
11065 MonoMarshalConv conv;
11066 MonoType *ftype = info->fields [i].field->type;
11069 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11072 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11073 klass->unicode, &conv);
11075 cpos = ptr + info->fields [i].offset;
11078 case MONO_MARSHAL_CONV_NONE:
11079 if (MONO_TYPE_ISSTRUCT (ftype)) {
11080 mono_struct_delete_old (ftype->data.klass, cpos);
11084 case MONO_MARSHAL_CONV_STR_LPWSTR:
11085 /* We assume this field points inside a MonoString */
11087 case MONO_MARSHAL_CONV_STR_LPTSTR:
11088 #ifdef TARGET_WIN32
11089 /* We assume this field points inside a MonoString
11093 case MONO_MARSHAL_CONV_STR_LPSTR:
11094 case MONO_MARSHAL_CONV_STR_BSTR:
11095 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11096 case MONO_MARSHAL_CONV_STR_TBSTR:
11097 case MONO_MARSHAL_CONV_STR_UTF8STR:
11098 mono_marshal_free (*(gpointer *)cpos);
11108 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11112 MONO_CHECK_ARG_NULL (src,);
11113 MONO_CHECK_ARG_NULL (type,);
11115 klass = mono_class_from_mono_type (type->type);
11116 if (!mono_class_init (klass)) {
11117 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11121 mono_struct_delete_old (klass, (char *)src);
11125 static inline void *
11126 mono_marshal_alloc_hglobal (size_t size)
11128 return g_try_malloc (size);
11133 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11136 size_t s = (size_t)size;
11139 /* This returns a valid pointer for size 0 on MS.NET */
11142 res = mono_marshal_alloc_hglobal (s);
11145 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11153 static inline gpointer
11154 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11156 return g_try_realloc (ptr, size);
11161 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11164 size_t s = (size_t)size;
11167 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11171 res = mono_marshal_realloc_hglobal (ptr, s);
11174 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11183 mono_marshal_free_hglobal (gpointer ptr)
11191 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11193 mono_marshal_free_hglobal (ptr);
11197 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11199 void *res = mono_marshal_alloc_co_task_mem (size);
11202 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11209 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11211 void *res = mono_marshal_alloc_co_task_mem (size);
11214 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11221 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11223 mono_marshal_free_co_task_mem (ptr);
11228 static inline gpointer
11229 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11231 return g_try_realloc (ptr, (gulong)size);
11236 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11238 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11241 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11248 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11250 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11254 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11256 MonoClass *klass = mono_type_get_class (type->type);
11257 if (!mono_class_init (klass)) {
11258 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11262 return mono_ftnptr_to_delegate (klass, ftn);
11266 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11268 return mono_delegate_to_ftnptr (delegate);
11272 * mono_marshal_is_loading_type_info:
11274 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11278 mono_marshal_is_loading_type_info (MonoClass *klass)
11280 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11282 return g_slist_find (loads_list, klass) != NULL;
11286 * mono_marshal_load_type_info:
11288 * Initialize klass::marshal_info using information from metadata. This function can
11289 * recursively call itself, and the caller is responsible to avoid that by calling
11290 * mono_marshal_is_loading_type_info () beforehand.
11292 * LOCKING: Acquires the loader lock.
11295 mono_marshal_load_type_info (MonoClass* klass)
11298 guint32 native_size = 0, min_align = 1, packing;
11299 MonoMarshalType *info;
11300 MonoClassField* field;
11303 GSList *loads_list;
11305 g_assert (klass != NULL);
11307 info = mono_class_get_marshal_info (klass);
11311 if (!klass->inited)
11312 mono_class_init (klass);
11314 info = mono_class_get_marshal_info (klass);
11319 * This function can recursively call itself, so we keep the list of classes which are
11320 * under initialization in a TLS list.
11322 g_assert (!mono_marshal_is_loading_type_info (klass));
11323 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11324 loads_list = g_slist_prepend (loads_list, klass);
11325 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11328 while ((field = mono_class_get_fields (klass, &iter))) {
11329 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11331 if (mono_field_is_deleted (field))
11336 layout = mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK;
11338 /* The mempool is protected by the loader lock */
11339 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11340 info->num_fields = count;
11342 /* Try to find a size for this type in metadata */
11343 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11345 if (klass->parent) {
11346 int parent_size = mono_class_native_size (klass->parent, NULL);
11348 /* Add parent size to real size */
11349 native_size += parent_size;
11350 info->native_size = parent_size;
11353 packing = klass->packing_size ? klass->packing_size : 8;
11356 while ((field = mono_class_get_fields (klass, &iter))) {
11360 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11363 if (mono_field_is_deleted (field))
11365 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11366 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11367 NULL, NULL, &info->fields [j].mspec);
11369 info->fields [j].field = field;
11371 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11372 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11373 /* This field is a hack inserted by MCS to empty structures */
11378 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11379 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11380 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11381 &align, TRUE, klass->unicode);
11382 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11383 min_align = MAX (align, min_align);
11384 info->fields [j].offset = info->native_size;
11385 info->fields [j].offset += align - 1;
11386 info->fields [j].offset &= ~(align - 1);
11387 info->native_size = info->fields [j].offset + size;
11389 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11390 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11391 &align, TRUE, klass->unicode);
11392 min_align = MAX (align, min_align);
11393 info->fields [j].offset = field->offset - sizeof (MonoObject);
11394 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11400 if (klass->byval_arg.type == MONO_TYPE_PTR)
11401 info->native_size = sizeof (gpointer);
11403 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11404 info->native_size = MAX (native_size, info->native_size);
11406 * If the provided Size is equal or larger than the calculated size, and there
11407 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11409 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11410 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11413 min_align = MIN (min_align, packing);
11417 if (info->native_size & (min_align - 1)) {
11418 info->native_size += min_align - 1;
11419 info->native_size &= ~(min_align - 1);
11422 info->min_align = min_align;
11424 /* Update the class's blittable info, if the layouts don't match */
11425 if (info->native_size != mono_class_value_size (klass, NULL))
11426 klass->blittable = FALSE;
11428 /* If this is an array type, ensure that we have element info */
11429 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11430 mono_marshal_load_type_info (klass->element_class);
11433 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11434 loads_list = g_slist_remove (loads_list, klass);
11435 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11437 mono_marshal_lock ();
11438 MonoMarshalType *info2 = mono_class_get_marshal_info (klass);
11440 /*We do double-checking locking on marshal_info */
11441 mono_memory_barrier ();
11442 mono_class_set_marshal_info (klass, info);
11443 ++class_marshal_info_count;
11446 mono_marshal_unlock ();
11452 * mono_class_native_size:
11455 * Returns: the native size of an object instance (when marshaled
11456 * to unmanaged code)
11459 mono_class_native_size (MonoClass *klass, guint32 *align)
11461 MonoMarshalType *info = mono_class_get_marshal_info (klass);
11463 if (mono_marshal_is_loading_type_info (klass)) {
11468 mono_marshal_load_type_info (klass);
11470 info = mono_class_get_marshal_info (klass);
11474 *align = info->min_align;
11476 return info->native_size;
11480 * mono_type_native_stack_size:
11481 * @t: the type to return the size it uses on the stack
11483 * Returns: the number of bytes required to hold an instance of this
11484 * type on the native stack
11487 mono_type_native_stack_size (MonoType *t, guint32 *align)
11491 g_assert (t != NULL);
11497 *align = sizeof (gpointer);
11498 return sizeof (gpointer);
11502 case MONO_TYPE_BOOLEAN:
11503 case MONO_TYPE_CHAR:
11514 case MONO_TYPE_STRING:
11515 case MONO_TYPE_OBJECT:
11516 case MONO_TYPE_CLASS:
11517 case MONO_TYPE_SZARRAY:
11518 case MONO_TYPE_PTR:
11519 case MONO_TYPE_FNPTR:
11520 case MONO_TYPE_ARRAY:
11521 *align = sizeof (gpointer);
11522 return sizeof (gpointer);
11527 *align = MONO_ABI_ALIGNOF (double);
11531 *align = MONO_ABI_ALIGNOF (gint64);
11533 case MONO_TYPE_GENERICINST:
11534 if (!mono_type_generic_inst_is_valuetype (t)) {
11535 *align = sizeof (gpointer);
11536 return sizeof (gpointer);
11539 case MONO_TYPE_TYPEDBYREF:
11540 case MONO_TYPE_VALUETYPE: {
11542 MonoClass *klass = mono_class_from_mono_type (t);
11544 if (klass->enumtype)
11545 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11547 size = mono_class_native_size (klass, align);
11548 *align = *align + 3;
11558 g_error ("type 0x%02x unknown", t->type);
11564 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11565 gboolean as_field, gboolean unicode)
11567 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11570 switch (native_type) {
11571 case MONO_NATIVE_BOOLEAN:
11574 case MONO_NATIVE_I1:
11575 case MONO_NATIVE_U1:
11578 case MONO_NATIVE_I2:
11579 case MONO_NATIVE_U2:
11580 case MONO_NATIVE_VARIANTBOOL:
11583 case MONO_NATIVE_I4:
11584 case MONO_NATIVE_U4:
11585 case MONO_NATIVE_ERROR:
11588 case MONO_NATIVE_I8:
11589 case MONO_NATIVE_U8:
11590 *align = MONO_ABI_ALIGNOF (gint64);
11592 case MONO_NATIVE_R4:
11595 case MONO_NATIVE_R8:
11596 *align = MONO_ABI_ALIGNOF (double);
11598 case MONO_NATIVE_INT:
11599 case MONO_NATIVE_UINT:
11600 case MONO_NATIVE_LPSTR:
11601 case MONO_NATIVE_LPWSTR:
11602 case MONO_NATIVE_LPTSTR:
11603 case MONO_NATIVE_BSTR:
11604 case MONO_NATIVE_ANSIBSTR:
11605 case MONO_NATIVE_TBSTR:
11606 case MONO_NATIVE_UTF8STR:
11607 case MONO_NATIVE_LPARRAY:
11608 case MONO_NATIVE_SAFEARRAY:
11609 case MONO_NATIVE_IUNKNOWN:
11610 case MONO_NATIVE_IDISPATCH:
11611 case MONO_NATIVE_INTERFACE:
11612 case MONO_NATIVE_ASANY:
11613 case MONO_NATIVE_FUNC:
11614 case MONO_NATIVE_LPSTRUCT:
11615 *align = MONO_ABI_ALIGNOF (gpointer);
11616 return sizeof (gpointer);
11617 case MONO_NATIVE_STRUCT:
11618 klass = mono_class_from_mono_type (type);
11619 if (klass == mono_defaults.object_class &&
11620 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11624 return mono_class_native_size (klass, align);
11625 case MONO_NATIVE_BYVALTSTR: {
11626 int esize = unicode ? 2: 1;
11629 return mspec->data.array_data.num_elem * esize;
11631 case MONO_NATIVE_BYVALARRAY: {
11632 // FIXME: Have to consider ArraySubType
11634 klass = mono_class_from_mono_type (type);
11635 if (klass->element_class == mono_defaults.char_class) {
11636 esize = unicode ? 2 : 1;
11639 esize = mono_class_native_size (klass->element_class, align);
11642 return mspec->data.array_data.num_elem * esize;
11644 case MONO_NATIVE_CUSTOM:
11645 *align = sizeof (gpointer);
11646 return sizeof (gpointer);
11648 case MONO_NATIVE_CURRENCY:
11649 case MONO_NATIVE_VBBYREFSTR:
11651 g_error ("native type %02x not implemented", native_type);
11654 g_assert_not_reached ();
11658 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11660 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11669 t = &o->vtable->klass->byval_arg;
11673 case MONO_TYPE_PTR:
11676 case MONO_TYPE_BOOLEAN:
11679 case MONO_TYPE_CHAR:
11684 return mono_object_unbox (o);
11686 case MONO_TYPE_STRING:
11687 switch (string_encoding) {
11688 case MONO_NATIVE_LPWSTR:
11689 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11690 case MONO_NATIVE_LPSTR:
11691 case MONO_NATIVE_UTF8STR:
11692 // Same code path, because in Mono, we treated strings as Utf8
11693 return mono_string_to_utf8str ((MonoString*)o);
11695 g_warning ("marshaling conversion %d not implemented", string_encoding);
11696 g_assert_not_reached ();
11699 case MONO_TYPE_CLASS:
11700 case MONO_TYPE_VALUETYPE: {
11701 MonoMethod *method;
11704 MonoBoolean delete_old = FALSE;
11706 klass = t->data.klass;
11708 if (mono_class_is_auto_layout (klass))
11711 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11712 return mono_object_unbox (o);
11714 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11715 if (!mono_error_ok (&error)) {
11716 mono_error_set_pending_exception (&error);
11720 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11721 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11725 pa [2] = &delete_old;
11727 mono_runtime_invoke_checked (method, NULL, pa, &error);
11728 if (!mono_error_ok (&error)) {
11729 mono_error_set_pending_exception (&error);
11739 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11743 /* This is a JIT icall, it sets the pending exception */
11745 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11754 t = &o->vtable->klass->byval_arg;
11756 case MONO_TYPE_STRING:
11757 switch (string_encoding) {
11758 case MONO_NATIVE_LPWSTR:
11759 case MONO_NATIVE_LPSTR:
11760 case MONO_NATIVE_UTF8STR:
11761 mono_marshal_free (ptr);
11764 g_warning ("marshaling conversion %d not implemented", string_encoding);
11765 g_assert_not_reached ();
11768 case MONO_TYPE_CLASS:
11769 case MONO_TYPE_VALUETYPE: {
11770 klass = t->data.klass;
11772 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11775 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11776 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11782 mono_runtime_invoke_checked (method, NULL, pa, &error);
11783 if (!mono_error_ok (&error)) {
11784 mono_error_set_pending_exception (&error);
11789 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11790 mono_struct_delete_old (klass, (char *)ptr);
11793 mono_marshal_free (ptr);
11802 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11804 MonoMethodSignature *sig, *csig;
11805 MonoMethodBuilder *mb;
11810 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11811 mb->method->slot = -1;
11813 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11814 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11816 sig = mono_method_signature (method);
11817 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11818 csig->generic_param_count = 0;
11820 #ifndef DISABLE_JIT
11821 mono_mb_emit_ldarg (mb, 0);
11822 for (i = 0; i < csig->param_count; i++)
11823 mono_mb_emit_ldarg (mb, i + 1);
11824 mono_mb_emit_managed_call (mb, method, NULL);
11825 mono_mb_emit_byte (mb, CEE_RET);
11827 /* We can corlib internal methods */
11828 mb->skip_visibility = TRUE;
11830 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11831 info->d.generic_array_helper.method = method;
11832 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11840 * The mono_win32_compat_* functions are implementations of inline
11841 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11842 * although not exported by kernel32.
11844 * We map the appropiate kernel32 entries to these functions using
11845 * dllmaps declared in the global etc/mono/config.
11849 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11851 if (!dest || !source)
11854 memcpy (dest, source, length);
11858 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11860 memset (dest, fill, length);
11864 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11866 if (!dest || !source)
11869 memmove (dest, source, length);
11873 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11875 memset (dest, 0, length);
11879 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11884 for (i = 0; i < len; ++i)
11888 g_assert (i < len);
11891 while (byte && !(byte & 1))
11893 g_assert (byte == 1);
11896 *bitmask = buf [i];
11900 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11902 MonoMethodBuilder *mb;
11903 MonoMethodSignature *sig, *csig;
11904 MonoExceptionClause *clause;
11909 int i, param_count, sig_size, pos_leave;
11913 // FIXME: we need to store the exception into a MonoHandle
11914 g_assert (!mono_threads_is_coop_enabled ());
11916 klass = method->klass;
11917 image = method->klass->image;
11919 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11921 if ((res = mono_marshal_find_in_cache (cache, method)))
11924 sig = mono_method_signature (method);
11925 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11927 /* add "this" and exception param */
11928 param_count = sig->param_count + sig->hasthis + 1;
11930 /* dup & extend signature */
11931 csig = mono_metadata_signature_alloc (image, param_count);
11932 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11933 memcpy (csig, sig, sig_size);
11934 csig->param_count = param_count;
11937 csig->call_convention = MONO_CALL_DEFAULT;
11939 if (sig->hasthis) {
11941 csig->params [0] = &klass->byval_arg;
11942 /* move params up by one */
11943 for (i = 0; i < sig->param_count; i++)
11944 csig->params [i + 1] = sig->params [i];
11947 /* setup exception param as byref+[out] */
11948 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11949 &mono_defaults.exception_class->byval_arg);
11950 csig->params [param_count - 1]->byref = 1;
11951 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11953 /* convert struct return to object */
11954 if (MONO_TYPE_ISSTRUCT (sig->ret))
11955 csig->ret = &mono_defaults.object_class->byval_arg;
11957 #ifndef DISABLE_JIT
11958 /* local 0 (temp for exception object) */
11959 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11961 /* local 1 (temp for result) */
11962 if (!MONO_TYPE_IS_VOID (sig->ret))
11963 mono_mb_add_local (mb, sig->ret);
11965 /* clear exception arg */
11966 mono_mb_emit_ldarg (mb, param_count - 1);
11967 mono_mb_emit_byte (mb, CEE_LDNULL);
11968 mono_mb_emit_byte (mb, CEE_STIND_REF);
11971 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11972 clause->try_offset = mono_mb_get_label (mb);
11974 /* push method's args */
11975 for (i = 0; i < param_count - 1; i++) {
11979 mono_mb_emit_ldarg (mb, i);
11981 /* get the byval type of the param */
11982 klass = mono_class_from_mono_type (csig->params [i]);
11983 type = &klass->byval_arg;
11985 /* unbox struct args */
11986 if (MONO_TYPE_ISSTRUCT (type)) {
11987 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11989 /* byref args & and the "this" arg must remain a ptr.
11990 Otherwise make a copy of the value type */
11991 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11992 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11994 csig->params [i] = &mono_defaults.object_class->byval_arg;
11999 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12000 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12002 mono_mb_emit_op (mb, CEE_CALL, method);
12004 /* save result at local 1 */
12005 if (!MONO_TYPE_IS_VOID (sig->ret))
12006 mono_mb_emit_stloc (mb, 1);
12008 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12011 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12012 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12013 clause->data.catch_class = mono_defaults.object_class;
12015 clause->handler_offset = mono_mb_get_label (mb);
12017 /* store exception at local 0 */
12018 mono_mb_emit_stloc (mb, 0);
12019 mono_mb_emit_ldarg (mb, param_count - 1);
12020 mono_mb_emit_ldloc (mb, 0);
12021 mono_mb_emit_byte (mb, CEE_STIND_REF);
12022 mono_mb_emit_branch (mb, CEE_LEAVE);
12024 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12026 mono_mb_set_clauses (mb, 1, clause);
12028 mono_mb_patch_branch (mb, pos_leave);
12031 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12032 mono_mb_emit_ldloc (mb, 1);
12034 /* box the return value */
12035 if (MONO_TYPE_ISSTRUCT (sig->ret))
12036 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12039 mono_mb_emit_byte (mb, CEE_RET);
12042 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12049 * mono_marshal_free_dynamic_wrappers:
12051 * Free wrappers of the dynamic method METHOD.
12054 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12056 MonoImage *image = method->klass->image;
12058 g_assert (method_is_dynamic (method));
12060 /* This could be called during shutdown */
12061 if (marshal_mutex_initialized)
12062 mono_marshal_lock ();
12064 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12065 * they could be shared with other methods ?
12067 if (image->wrapper_caches.runtime_invoke_direct_cache)
12068 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
12069 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12070 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12071 // FIXME: Need to clear the caches in other images as well
12072 if (image->delegate_bound_static_invoke_cache)
12073 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12075 if (marshal_mutex_initialized)
12076 mono_marshal_unlock ();
12080 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12082 g_assert (ftnptr_eh_callback);
12083 ftnptr_eh_callback (gchandle);
12087 ftnptr_eh_callback_default (guint32 gchandle)
12089 MonoException *exc;
12090 gpointer stackdata;
12092 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12094 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12096 mono_gchandle_free (gchandle);
12098 mono_raise_exception (exc);
12102 * mono_install_ftnptr_eh_callback:
12104 * Install a callback that should be called when there is a managed exception
12105 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12106 * managed exception to a native exception, to properly unwind the native
12107 * stack; this native exception will then be converted back to a managed
12108 * exception in their managed-to-native wrapper.
12111 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12113 ftnptr_eh_callback = callback;
12116 static MonoThreadInfo*
12117 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12119 MonoThreadInfo *info = mono_thread_info_current ();
12121 mono_stack_mark_init (info, stackmark);
12122 mono_error_init (error);
12127 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12129 mono_stack_mark_pop (info, stackmark);
12130 mono_error_set_pending_exception (error);