3 * Routines for marshaling complex types in P/Invoke methods.
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
10 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
12 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
23 #include "metadata/marshal.h"
24 #include "metadata/marshal-internals.h"
25 #include "metadata/method-builder.h"
26 #include "metadata/tabledefs.h"
27 #include "metadata/exception.h"
28 #include "metadata/appdomain.h"
29 #include "mono/metadata/abi-details.h"
30 #include "mono/metadata/debug-helpers.h"
31 #include "mono/metadata/threads.h"
32 #include "mono/metadata/monitor.h"
33 #include "mono/metadata/class-internals.h"
34 #include "mono/metadata/metadata-internals.h"
35 #include "mono/metadata/domain-internals.h"
36 #include "mono/metadata/gc-internals.h"
37 #include "mono/metadata/threads-types.h"
38 #include "mono/metadata/string-icalls.h"
39 #include "mono/metadata/attrdefs.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.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 (gsize 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 static MonoObjectHandle
219 mono_icall_handle_new (gpointer rawobj);
221 static MonoObjectHandle
222 mono_icall_handle_new_interior (gpointer rawobj);
224 /* Lazy class loading functions */
225 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, "System.Text", "StringBuilder");
226 static GENERATE_GET_CLASS_WITH_CACHE (date_time, "System", "DateTime");
227 static GENERATE_GET_CLASS_WITH_CACHE (fixed_buffer_attribute, "System.Runtime.CompilerServices", "FixedBufferAttribute");
228 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
229 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, "System.Runtime.InteropServices", "ICustomMarshaler");
231 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
232 static MonoMethod *sh_dangerous_add_ref;
233 static MonoMethod *sh_dangerous_release;
238 sh_dangerous_add_ref = mono_class_get_method_from_name (
239 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
240 sh_dangerous_release = mono_class_get_method_from_name (
241 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
245 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
247 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
249 mono_register_jit_icall (func, name, sig, no_wrapper);
253 register_icall_no_wrapper (gpointer func, const char *name, const char *sigstr)
255 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
257 mono_register_jit_icall (func, name, sig, TRUE);
261 mono_signature_no_pinvoke (MonoMethod *method)
263 MonoMethodSignature *sig = mono_method_signature (method);
265 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
266 sig->pinvoke = FALSE;
273 mono_marshal_init_tls (void)
275 mono_native_tls_alloc (&last_error_tls_id, NULL);
276 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
280 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
285 /* This is called from stelemref so it is expected to succeed */
287 if (mono_class_is_interface (klass)) {
288 MonoVTable *vt = obj->vtable;
291 mono_class_init (klass);
293 if (MONO_VTABLE_IMPLEMENTS_INTERFACE (vt, klass->interface_id))
298 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
299 mono_error_set_pending_exception (&error);
304 ves_icall_mono_string_from_utf16 (gunichar2 *data)
307 MonoString *result = mono_string_from_utf16_checked (data, &error);
308 mono_error_set_pending_exception (&error);
313 ves_icall_mono_string_to_utf8 (MonoString *str)
316 char *result = mono_string_to_utf8_checked (str, &error);
317 mono_error_set_pending_exception (&error);
322 ves_icall_string_new_wrapper (const char *text)
326 MonoString *res = mono_string_new_checked (mono_domain_get (), text, &error);
327 mono_error_set_pending_exception (&error);
335 mono_marshal_init (void)
337 static gboolean module_initialized = FALSE;
339 if (!module_initialized) {
340 module_initialized = TRUE;
341 mono_os_mutex_init_recursive (&marshal_mutex);
342 marshal_mutex_initialized = TRUE;
344 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
345 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
346 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
347 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
348 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
349 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
350 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
351 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
352 register_icall (ves_icall_string_new_wrapper, "ves_icall_string_new_wrapper", "obj ptr", FALSE);
353 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
354 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
355 register_icall (mono_string_to_utf8str, "mono_string_to_utf8str", "ptr obj", FALSE);
356 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
357 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
358 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
359 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
360 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
361 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
362 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
363 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
364 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
365 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
366 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
367 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
368 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
369 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
370 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr ptr", FALSE);
371 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
372 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
373 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
374 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
375 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
376 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
377 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
378 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
379 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
380 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
381 register_icall (g_free, "g_free", "void ptr", FALSE);
382 register_icall_no_wrapper (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr");
383 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
384 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
385 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
386 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
387 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
388 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
389 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
390 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
391 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
392 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
393 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
394 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
395 register_icall (mono_icall_start, "mono_icall_start", "ptr ptr ptr", TRUE);
396 register_icall (mono_icall_end, "mono_icall_end", "void ptr ptr ptr", TRUE);
397 register_icall (mono_icall_handle_new, "mono_icall_handle_new", "ptr ptr", TRUE);
398 register_icall (mono_icall_handle_new_interior, "mono_icall_handle_new_interior", "ptr ptr", TRUE);
400 mono_cominterop_init ();
401 mono_remoting_init ();
403 mono_counters_register ("MonoClass::class_marshal_info_count count",
404 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_marshal_info_count);
410 mono_marshal_cleanup (void)
412 mono_cominterop_cleanup ();
414 mono_native_tls_free (load_type_info_tls_id);
415 mono_native_tls_free (last_error_tls_id);
416 mono_os_mutex_destroy (&marshal_mutex);
417 marshal_mutex_initialized = FALSE;
421 mono_marshal_lock_internal (void)
423 mono_marshal_lock ();
427 mono_marshal_unlock_internal (void)
429 mono_marshal_unlock ();
432 /* This is a JIT icall, it sets the pending exception and return NULL on error */
434 mono_delegate_to_ftnptr (MonoDelegate *delegate)
437 MonoMethod *method, *wrapper;
439 uint32_t target_handle = 0;
444 if (delegate->delegate_trampoline)
445 return delegate->delegate_trampoline;
447 klass = ((MonoObject *)delegate)->vtable->klass;
448 g_assert (klass->delegate);
450 method = delegate->method;
451 if (delegate->method_is_virtual)
452 method = mono_object_get_virtual_method (delegate->target, method);
454 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
455 const char *exc_class, *exc_arg;
458 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
460 g_assert (exc_class);
461 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
467 if (delegate->target) {
468 /* Produce a location which can be embedded in JITted code */
469 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
472 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle, &error);
476 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
480 // Add the delegate to the delegate hash table
481 delegate_hash_table_add (delegate);
483 /* when the object is collected, collect the dynamic method, too */
484 mono_object_register_finalizer ((MonoObject*)delegate);
486 return delegate->delegate_trampoline;
489 if (target_handle != 0)
490 mono_gchandle_free (target_handle);
491 mono_error_set_pending_exception (&error);
496 * this hash table maps from a delegate trampoline object to a weak reference
497 * of the delegate. As an optimizations with a non-moving GC we store the
498 * object pointer itself, otherwise we use a GC handle.
500 static GHashTable *delegate_hash_table;
503 delegate_hash_table_new (void) {
504 return g_hash_table_new (NULL, NULL);
508 delegate_hash_table_remove (MonoDelegate *d)
510 guint32 gchandle = 0;
512 mono_marshal_lock ();
513 if (delegate_hash_table == NULL)
514 delegate_hash_table = delegate_hash_table_new ();
515 if (mono_gc_is_moving ())
516 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
517 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
518 mono_marshal_unlock ();
519 if (gchandle && mono_gc_is_moving ())
520 mono_gchandle_free (gchandle);
524 delegate_hash_table_add (MonoDelegate *d)
527 guint32 old_gchandle;
529 mono_marshal_lock ();
530 if (delegate_hash_table == NULL)
531 delegate_hash_table = delegate_hash_table_new ();
532 if (mono_gc_is_moving ()) {
533 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
534 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
535 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
537 mono_gchandle_free (old_gchandle);
539 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
541 mono_marshal_unlock ();
545 * mono_marshal_use_aot_wrappers:
547 * Instructs this module to use AOT compatible wrappers.
550 mono_marshal_use_aot_wrappers (gboolean use)
552 use_aot_wrappers = use;
556 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
559 MonoCustomAttrInfo *cinfo;
560 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
562 /* The attribute is only available in Net 2.0 */
563 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
565 * The pinvoke attributes are stored in a real custom attribute so we have to
568 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
569 if (!mono_error_ok (&error)) {
570 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
571 mono_error_cleanup (&error);
573 if (cinfo && !mono_runtime_get_no_exec ()) {
574 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
576 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
578 if (!mono_error_ok (&error)) {
579 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
580 mono_error_cleanup (&error);
584 mono_custom_attrs_free (cinfo);
589 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
591 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
600 mono_marshal_lock ();
601 if (delegate_hash_table == NULL)
602 delegate_hash_table = delegate_hash_table_new ();
604 if (mono_gc_is_moving ()) {
605 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
606 mono_marshal_unlock ();
608 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
612 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
613 mono_marshal_unlock ();
616 /* This is a native function, so construct a delegate for it */
617 MonoMethodSignature *sig;
619 MonoMarshalSpec **mspecs;
620 MonoMethod *invoke = mono_get_delegate_invoke (klass);
621 MonoMethodPInvoke piinfo;
622 MonoObject *this_obj;
625 if (use_aot_wrappers) {
626 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
627 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
628 if (!is_ok (&error)) {
629 mono_error_set_pending_exception (&error);
633 memset (&piinfo, 0, sizeof (piinfo));
634 parse_unmanaged_function_pointer_attr (klass, &piinfo);
636 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
637 mono_method_get_marshal_info (invoke, mspecs);
638 /* Freed below so don't alloc from mempool */
639 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
642 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
645 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
647 mono_metadata_free_marshal_spec (mspecs [i]);
652 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
653 if (!mono_error_ok (&error)) {
654 mono_error_set_pending_exception (&error);
657 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
658 if (mono_error_set_pending_exception (&error))
660 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
661 if (mono_error_set_pending_exception (&error))
665 if (d->object.vtable->domain != mono_domain_get ()) {
666 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
674 mono_delegate_free_ftnptr (MonoDelegate *delegate)
679 delegate_hash_table_remove (delegate);
681 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
683 if (!delegate->target) {
684 /* The wrapper method is shared between delegates -> no need to free it */
693 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
696 method = mono_jit_info_get_method (ji);
697 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
699 /*the target gchandle is the first entry after size and the wrapper itself.*/
700 gchandle = GPOINTER_TO_UINT (method_data [2]);
703 mono_gchandle_free (gchandle);
705 mono_runtime_free_method (mono_object_domain (delegate), method);
709 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
711 mono_string_from_byvalstr (const char *data, int max_len)
714 MonoDomain *domain = mono_domain_get ();
720 while (len < max_len - 1 && data [len])
723 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
724 mono_error_set_pending_exception (&error);
728 /* This is a JIT icall, it sets the pending exception and return NULL on error */
730 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
733 MonoString *res = NULL;
734 MonoDomain *domain = mono_domain_get ();
740 while (data [len]) len++;
742 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
743 if (!mono_error_ok (&error)) {
744 mono_error_set_pending_exception (&error);
751 mono_array_to_savearray (MonoArray *array)
756 g_assert_not_reached ();
761 mono_array_to_lparray (MonoArray *array)
764 gpointer *nativeArray = NULL;
765 int nativeArraySize = 0;
775 klass = array->obj.vtable->klass;
777 switch (klass->element_class->byval_arg.type) {
779 g_assert_not_reached ();
781 case MONO_TYPE_CLASS:
782 nativeArraySize = array->max_length;
783 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
784 for(i = 0; i < nativeArraySize; ++i)
785 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
788 case MONO_TYPE_BOOLEAN:
801 case MONO_TYPE_VALUETYPE:
805 case MONO_TYPE_GENERICINST:
806 case MONO_TYPE_OBJECT:
807 case MONO_TYPE_ARRAY:
808 case MONO_TYPE_SZARRAY:
809 case MONO_TYPE_STRING:
811 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
812 g_assert_not_reached ();
815 return array->vector;
819 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
830 klass = array->obj.vtable->klass;
832 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
833 for(i = 0; i < array->max_length; ++i)
834 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
835 g_free (nativeArray);
841 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
843 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
845 if (elclass == mono_defaults.byte_class) {
846 GError *error = NULL;
850 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
853 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
857 g_error_free (error);
860 g_assert_not_reached ();
864 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
866 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
869 /* This is a JIT icall, it sets the pending exception and returns on error */
871 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
873 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
875 if (elclass == mono_defaults.byte_class) {
877 GError *error = NULL;
879 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
881 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
882 g_error_free (error);
886 memcpy (native_arr, as, MIN (strlen (as), elnum));
889 g_assert_not_reached ();
894 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
896 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
899 static MonoStringBuilder *
900 mono_string_builder_new (int starting_string_length)
902 static MonoClass *string_builder_class;
903 static MonoMethod *sb_ctor;
904 static void *args [1];
907 int initial_len = starting_string_length;
913 MonoMethodDesc *desc;
916 string_builder_class = mono_class_get_string_builder_class ();
917 g_assert (string_builder_class);
918 desc = mono_method_desc_new (":.ctor(int)", FALSE);
919 m = mono_method_desc_search_in_class (desc, string_builder_class);
921 mono_method_desc_free (desc);
922 mono_memory_barrier ();
926 // We make a new array in the _to_builder function, so this
927 // array will always be garbage collected.
928 args [0] = &initial_len;
930 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
931 mono_error_assert_ok (&error);
934 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
935 g_assert (exc == NULL);
936 mono_error_assert_ok (&error);
938 g_assert (sb->chunkChars->max_length >= initial_len);
944 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
946 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
947 gunichar2 *charSrc = (gunichar2 *)text;
948 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
950 sb->chunkLength = string_len;
956 mono_string_utf16_to_builder2 (gunichar2 *text)
962 for (len = 0; text [len] != 0; ++len);
964 MonoStringBuilder *sb = mono_string_builder_new (len);
965 mono_string_utf16_to_builder (sb, text);
971 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
976 GError *error = NULL;
978 gunichar2* ut = g_utf8_to_utf16 (text, strlen (text), NULL, &copied, &error);
979 int capacity = mono_string_builder_capacity (sb);
981 if (copied > capacity)
985 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
986 mono_string_utf16_to_builder_copy (sb, ut, copied);
988 g_error_free (error);
994 mono_string_utf8_to_builder2 (char *text)
999 int len = strlen (text);
1000 MonoStringBuilder *sb = mono_string_builder_new (len);
1001 mono_string_utf8_to_builder (sb, text);
1007 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
1013 for (len = 0; text [len] != 0; ++len);
1015 if (len > mono_string_builder_capacity (sb))
1016 len = mono_string_builder_capacity (sb);
1018 mono_string_utf16_to_builder_copy (sb, text, len);
1022 * mono_string_builder_to_utf8:
1023 * \param sb the string builder
1025 * Converts to utf8 the contents of the \c MonoStringBuilder .
1027 * \returns a utf8 string with the contents of the \c StringBuilder .
1029 * The return value must be released with mono_marshal_free.
1031 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1034 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
1037 GError *gerror = NULL;
1042 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
1044 guint str_len = mono_string_builder_string_length (sb);
1046 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
1049 g_error_free (gerror);
1050 mono_marshal_free (str_utf16);
1051 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1054 guint len = mono_string_builder_capacity (sb) + 1;
1055 gchar *res = (gchar *)mono_marshal_alloc (MAX (byte_count+1, len * sizeof (gchar)), &error);
1056 if (!mono_error_ok (&error)) {
1057 mono_marshal_free (str_utf16);
1059 mono_error_set_pending_exception (&error);
1063 memcpy (res, tmp, byte_count);
1064 res[byte_count] = '\0';
1066 mono_marshal_free (str_utf16);
1073 * mono_string_builder_to_utf16:
1074 * \param sb the string builder
1076 * Converts to utf16 the contents of the \c MonoStringBuilder .
1078 * Returns: a utf16 string with the contents of the \c StringBuilder .
1080 * The return value must be released with mono_marshal_free.
1082 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1085 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1092 g_assert (sb->chunkChars);
1094 guint len = mono_string_builder_capacity (sb);
1099 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1100 if (!mono_error_ok (&error)) {
1101 mono_error_set_pending_exception (&error);
1110 MonoStringBuilder* chunk = sb;
1112 if (chunk->chunkLength > 0) {
1113 // Check that we will not overrun our boundaries.
1114 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1116 if (chunk->chunkLength <= len) {
1117 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1119 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1122 len -= chunk->chunkLength;
1124 chunk = chunk->chunkPrevious;
1125 } while (chunk != NULL);
1131 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1133 mono_string_to_utf8str (MonoString *s)
1136 char *result = mono_string_to_utf8_checked (s, &error);
1137 mono_error_set_pending_exception (&error);
1143 mono_string_to_ansibstr (MonoString *string_obj)
1145 g_error ("UnmanagedMarshal.BStr is not implemented.");
1150 * mono_string_to_byvalstr:
1151 * \param dst Where to store the null-terminated utf8 decoded string.
1152 * \param src the \c MonoString to copy.
1153 * \param size the maximum number of bytes to copy.
1155 * Copies the \c MonoString pointed to by \p src as a utf8 string
1156 * into \p dst, it copies at most \p size bytes into the destination.
1159 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1165 g_assert (dst != NULL);
1166 g_assert (size > 0);
1168 memset (dst, 0, size);
1172 s = mono_string_to_utf8_checked (src, &error);
1173 if (mono_error_set_pending_exception (&error))
1175 len = MIN (size, strlen (s));
1178 memcpy (dst, s, len);
1183 * mono_string_to_byvalwstr:
1184 * \param dst Where to store the null-terminated utf16 decoded string.
1185 * \param src the \c MonoString to copy.
1186 * \param size the maximum number of wide characters to copy (each consumes 2 bytes)
1188 * Copies the \c MonoString pointed to by \p src as a utf16 string into
1189 * \p dst, it copies at most \p size bytes into the destination (including
1190 * a terminating 16-bit zero terminator).
1193 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1197 g_assert (dst != NULL);
1198 g_assert (size > 1);
1201 memset (dst, 0, size * 2);
1205 len = MIN (size, (mono_string_length (src)));
1206 memcpy (dst, mono_string_chars (src), len * 2);
1207 if (size <= mono_string_length (src))
1209 *((gunichar2 *) dst + len) = 0;
1212 /* this is an icall, it sets the pending exception and returns NULL on error */
1214 mono_string_new_len_wrapper (const char *text, guint length)
1217 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1218 mono_error_set_pending_exception (&error);
1225 * mono_mb_emit_exception_marshal_directive:
1227 * This function assumes ownership of MSG, which should be malloc-ed.
1230 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1235 s = mono_image_strdup (mb->method->klass->image, msg);
1240 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1243 #endif /* !DISABLE_JIT */
1246 mono_type_to_ldind (MonoType *type)
1252 switch (type->type) {
1254 return CEE_LDIND_I1;
1256 case MONO_TYPE_BOOLEAN:
1257 return CEE_LDIND_U1;
1259 return CEE_LDIND_I2;
1261 case MONO_TYPE_CHAR:
1262 return CEE_LDIND_U2;
1264 return CEE_LDIND_I4;
1266 return CEE_LDIND_U4;
1270 case MONO_TYPE_FNPTR:
1272 case MONO_TYPE_CLASS:
1273 case MONO_TYPE_STRING:
1274 case MONO_TYPE_OBJECT:
1275 case MONO_TYPE_SZARRAY:
1276 case MONO_TYPE_ARRAY:
1277 return CEE_LDIND_REF;
1280 return CEE_LDIND_I8;
1282 return CEE_LDIND_R4;
1284 return CEE_LDIND_R8;
1285 case MONO_TYPE_VALUETYPE:
1286 if (type->data.klass->enumtype) {
1287 type = mono_class_enum_basetype (type->data.klass);
1291 case MONO_TYPE_TYPEDBYREF:
1293 case MONO_TYPE_GENERICINST:
1294 type = &type->data.generic_class->container_class->byval_arg;
1297 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1303 mono_type_to_stind (MonoType *type)
1306 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1310 switch (type->type) {
1313 case MONO_TYPE_BOOLEAN:
1314 return CEE_STIND_I1;
1317 case MONO_TYPE_CHAR:
1318 return CEE_STIND_I2;
1321 return CEE_STIND_I4;
1325 case MONO_TYPE_FNPTR:
1327 case MONO_TYPE_CLASS:
1328 case MONO_TYPE_STRING:
1329 case MONO_TYPE_OBJECT:
1330 case MONO_TYPE_SZARRAY:
1331 case MONO_TYPE_ARRAY:
1332 return CEE_STIND_REF;
1335 return CEE_STIND_I8;
1337 return CEE_STIND_R4;
1339 return CEE_STIND_R8;
1340 case MONO_TYPE_VALUETYPE:
1341 if (type->data.klass->enumtype) {
1342 type = mono_class_enum_basetype (type->data.klass);
1346 case MONO_TYPE_TYPEDBYREF:
1348 case MONO_TYPE_GENERICINST:
1349 type = &type->data.generic_class->container_class->byval_arg;
1352 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1360 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1363 case MONO_MARSHAL_CONV_BOOL_I4:
1364 mono_mb_emit_ldloc (mb, 1);
1365 mono_mb_emit_ldloc (mb, 0);
1366 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1367 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1368 mono_mb_emit_byte (mb, 3);
1369 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1370 mono_mb_emit_byte (mb, CEE_BR_S);
1371 mono_mb_emit_byte (mb, 1);
1372 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1373 mono_mb_emit_byte (mb, CEE_STIND_I1);
1375 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1376 mono_mb_emit_ldloc (mb, 1);
1377 mono_mb_emit_ldloc (mb, 0);
1378 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1379 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1380 mono_mb_emit_byte (mb, 3);
1381 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1382 mono_mb_emit_byte (mb, CEE_BR_S);
1383 mono_mb_emit_byte (mb, 1);
1384 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1385 mono_mb_emit_byte (mb, CEE_STIND_I1);
1387 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1388 MonoClass *eklass = NULL;
1391 if (type->type == MONO_TYPE_SZARRAY) {
1392 eklass = type->data.klass;
1394 g_assert_not_reached ();
1397 esize = mono_class_native_size (eklass, NULL);
1399 /* create a new array */
1400 mono_mb_emit_ldloc (mb, 1);
1401 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1402 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1403 mono_mb_emit_byte (mb, CEE_STIND_REF);
1405 if (eklass->blittable) {
1406 /* copy the elements */
1407 mono_mb_emit_ldloc (mb, 1);
1408 mono_mb_emit_byte (mb, CEE_LDIND_I);
1409 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1410 mono_mb_emit_byte (mb, CEE_ADD);
1411 mono_mb_emit_ldloc (mb, 0);
1412 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1413 mono_mb_emit_byte (mb, CEE_PREFIX1);
1414 mono_mb_emit_byte (mb, CEE_CPBLK);
1417 int array_var, src_var, dst_var, index_var;
1418 guint32 label2, label3;
1420 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1421 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1422 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1425 mono_mb_emit_ldloc (mb, 1);
1426 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1427 mono_mb_emit_stloc (mb, array_var);
1429 /* save the old src pointer */
1430 mono_mb_emit_ldloc (mb, 0);
1431 mono_mb_emit_stloc (mb, src_var);
1432 /* save the old dst pointer */
1433 mono_mb_emit_ldloc (mb, 1);
1434 mono_mb_emit_stloc (mb, dst_var);
1436 /* Emit marshalling loop */
1437 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1438 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1439 mono_mb_emit_stloc (mb, index_var);
1442 label2 = mono_mb_get_label (mb);
1443 mono_mb_emit_ldloc (mb, index_var);
1444 mono_mb_emit_ldloc (mb, array_var);
1445 mono_mb_emit_byte (mb, CEE_LDLEN);
1446 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1448 /* src is already set */
1451 mono_mb_emit_ldloc (mb, array_var);
1452 mono_mb_emit_ldloc (mb, index_var);
1453 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1454 mono_mb_emit_stloc (mb, 1);
1456 /* Do the conversion */
1457 emit_struct_conv (mb, eklass, TRUE);
1460 mono_mb_emit_add_to_local (mb, index_var, 1);
1462 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1464 mono_mb_patch_branch (mb, label3);
1466 /* restore the old src pointer */
1467 mono_mb_emit_ldloc (mb, src_var);
1468 mono_mb_emit_stloc (mb, 0);
1469 /* restore the old dst pointer */
1470 mono_mb_emit_ldloc (mb, dst_var);
1471 mono_mb_emit_stloc (mb, 1);
1475 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1476 MonoClass *eclass = mono_defaults.char_class;
1478 /* create a new array */
1479 mono_mb_emit_ldloc (mb, 1);
1480 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1481 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1482 mono_mb_emit_byte (mb, CEE_STIND_REF);
1484 mono_mb_emit_ldloc (mb, 1);
1485 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1486 mono_mb_emit_ldloc (mb, 0);
1487 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1488 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1491 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1492 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1493 mono_mb_emit_ldloc (mb, 1);
1494 mono_mb_emit_ldloc (mb, 0);
1495 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1496 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1498 mono_mb_emit_ldloc (mb, 1);
1499 mono_mb_emit_ldloc (mb, 0);
1500 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1502 mono_mb_emit_byte (mb, CEE_STIND_REF);
1504 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1505 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1506 mono_mb_emit_ldloc (mb, 1);
1507 mono_mb_emit_ldloc (mb, 0);
1508 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1509 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1511 mono_mb_emit_ldloc (mb, 1);
1512 mono_mb_emit_ldloc (mb, 0);
1513 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1515 mono_mb_emit_byte (mb, CEE_STIND_REF);
1517 case MONO_MARSHAL_CONV_STR_LPTSTR:
1518 mono_mb_emit_ldloc (mb, 1);
1519 mono_mb_emit_ldloc (mb, 0);
1520 mono_mb_emit_byte (mb, CEE_LDIND_I);
1522 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1524 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1526 mono_mb_emit_byte (mb, CEE_STIND_REF);
1529 // In Mono historically LPSTR was treated as a UTF8STR
1530 case MONO_MARSHAL_CONV_STR_LPSTR:
1531 case MONO_MARSHAL_CONV_STR_UTF8STR:
1532 mono_mb_emit_ldloc (mb, 1);
1533 mono_mb_emit_ldloc (mb, 0);
1534 mono_mb_emit_byte (mb, CEE_LDIND_I);
1535 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1536 mono_mb_emit_byte (mb, CEE_STIND_REF);
1538 case MONO_MARSHAL_CONV_STR_LPWSTR:
1539 mono_mb_emit_ldloc (mb, 1);
1540 mono_mb_emit_ldloc (mb, 0);
1541 mono_mb_emit_byte (mb, CEE_LDIND_I);
1542 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1543 mono_mb_emit_byte (mb, CEE_STIND_REF);
1545 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1546 MonoClass *klass = mono_class_from_mono_type (type);
1547 int src_var, dst_var;
1549 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1550 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1552 /* *dst = new object */
1553 mono_mb_emit_ldloc (mb, 1);
1554 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1555 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1556 mono_mb_emit_byte (mb, CEE_STIND_REF);
1558 /* save the old src pointer */
1559 mono_mb_emit_ldloc (mb, 0);
1560 mono_mb_emit_stloc (mb, src_var);
1561 /* save the old dst pointer */
1562 mono_mb_emit_ldloc (mb, 1);
1563 mono_mb_emit_stloc (mb, dst_var);
1565 /* dst = pointer to newly created object data */
1566 mono_mb_emit_ldloc (mb, 1);
1567 mono_mb_emit_byte (mb, CEE_LDIND_I);
1568 mono_mb_emit_icon (mb, sizeof (MonoObject));
1569 mono_mb_emit_byte (mb, CEE_ADD);
1570 mono_mb_emit_stloc (mb, 1);
1572 emit_struct_conv (mb, klass, TRUE);
1574 /* restore the old src pointer */
1575 mono_mb_emit_ldloc (mb, src_var);
1576 mono_mb_emit_stloc (mb, 0);
1577 /* restore the old dst pointer */
1578 mono_mb_emit_ldloc (mb, dst_var);
1579 mono_mb_emit_stloc (mb, 1);
1582 case MONO_MARSHAL_CONV_DEL_FTN: {
1583 MonoClass *klass = mono_class_from_mono_type (type);
1585 mono_mb_emit_ldloc (mb, 1);
1586 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1587 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1588 mono_mb_emit_ldloc (mb, 0);
1589 mono_mb_emit_byte (mb, CEE_LDIND_I);
1590 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1591 mono_mb_emit_byte (mb, CEE_STIND_REF);
1594 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1595 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1599 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1600 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1601 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1602 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1604 #endif /* DISABLE_COM */
1606 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1608 * Passing SafeHandles as ref does not allow the unmanaged code
1609 * to change the SafeHandle value. If the value is changed,
1610 * we should issue a diagnostic exception (NotSupportedException)
1611 * that informs the user that changes to handles in unmanaged code
1614 * Since we currently have no access to the original
1615 * SafeHandle that was used during the marshalling,
1616 * for now we just ignore this, and ignore/discard any
1617 * changes that might have happened to the handle.
1622 case MONO_MARSHAL_CONV_HANDLEREF: {
1624 * Passing HandleRefs in a struct that is ref()ed does not
1625 * copy the values back to the HandleRef
1630 case MONO_MARSHAL_CONV_STR_BSTR:
1631 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1632 case MONO_MARSHAL_CONV_STR_TBSTR:
1633 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1635 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1637 mono_mb_emit_exception_marshal_directive (mb, msg);
1644 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1647 if (!ind_store_type)
1648 ind_store_type = &dummy;
1649 *ind_store_type = CEE_STIND_I;
1651 case MONO_MARSHAL_CONV_STR_LPWSTR:
1652 return mono_marshal_string_to_utf16;
1653 case MONO_MARSHAL_CONV_LPWSTR_STR:
1654 *ind_store_type = CEE_STIND_REF;
1655 return ves_icall_mono_string_from_utf16;
1656 case MONO_MARSHAL_CONV_LPTSTR_STR:
1657 *ind_store_type = CEE_STIND_REF;
1658 return ves_icall_string_new_wrapper;
1659 case MONO_MARSHAL_CONV_UTF8STR_STR:
1660 case MONO_MARSHAL_CONV_LPSTR_STR:
1661 *ind_store_type = CEE_STIND_REF;
1662 return ves_icall_string_new_wrapper;
1663 case MONO_MARSHAL_CONV_STR_LPTSTR:
1665 return mono_marshal_string_to_utf16;
1667 return mono_string_to_utf8str;
1669 // In Mono historically LPSTR was treated as a UTF8STR
1670 case MONO_MARSHAL_CONV_STR_UTF8STR:
1671 case MONO_MARSHAL_CONV_STR_LPSTR:
1672 return mono_string_to_utf8str;
1673 case MONO_MARSHAL_CONV_STR_BSTR:
1674 return mono_string_to_bstr;
1675 case MONO_MARSHAL_CONV_BSTR_STR:
1676 *ind_store_type = CEE_STIND_REF;
1677 return mono_string_from_bstr_icall;
1678 case MONO_MARSHAL_CONV_STR_TBSTR:
1679 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1680 return mono_string_to_ansibstr;
1681 case MONO_MARSHAL_CONV_SB_UTF8STR:
1682 case MONO_MARSHAL_CONV_SB_LPSTR:
1683 return mono_string_builder_to_utf8;
1684 case MONO_MARSHAL_CONV_SB_LPTSTR:
1686 return mono_string_builder_to_utf16;
1688 return mono_string_builder_to_utf8;
1690 case MONO_MARSHAL_CONV_SB_LPWSTR:
1691 return mono_string_builder_to_utf16;
1692 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1693 return mono_array_to_savearray;
1694 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1695 return mono_array_to_lparray;
1696 case MONO_MARSHAL_FREE_LPARRAY:
1697 return mono_free_lparray;
1698 case MONO_MARSHAL_CONV_DEL_FTN:
1699 return mono_delegate_to_ftnptr;
1700 case MONO_MARSHAL_CONV_FTN_DEL:
1701 *ind_store_type = CEE_STIND_REF;
1702 return mono_ftnptr_to_delegate;
1703 case MONO_MARSHAL_CONV_UTF8STR_SB:
1704 case MONO_MARSHAL_CONV_LPSTR_SB:
1705 *ind_store_type = CEE_STIND_REF;
1706 return mono_string_utf8_to_builder;
1707 case MONO_MARSHAL_CONV_LPTSTR_SB:
1708 *ind_store_type = CEE_STIND_REF;
1710 return mono_string_utf16_to_builder;
1712 return mono_string_utf8_to_builder;
1714 case MONO_MARSHAL_CONV_LPWSTR_SB:
1715 *ind_store_type = CEE_STIND_REF;
1716 return mono_string_utf16_to_builder;
1717 case MONO_MARSHAL_FREE_ARRAY:
1718 return mono_marshal_free_array;
1719 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1720 return mono_string_to_byvalstr;
1721 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1722 return mono_string_to_byvalwstr;
1724 g_assert_not_reached ();
1731 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1737 case MONO_MARSHAL_CONV_BOOL_I4:
1738 mono_mb_emit_ldloc (mb, 1);
1739 mono_mb_emit_ldloc (mb, 0);
1740 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1741 mono_mb_emit_byte (mb, CEE_STIND_I4);
1743 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1744 mono_mb_emit_ldloc (mb, 1);
1745 mono_mb_emit_ldloc (mb, 0);
1746 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1747 mono_mb_emit_byte (mb, CEE_NEG);
1748 mono_mb_emit_byte (mb, CEE_STIND_I2);
1750 // In Mono historically LPSTR was treated as a UTF8STR
1751 case MONO_MARSHAL_CONV_STR_UTF8STR:
1752 case MONO_MARSHAL_CONV_STR_LPWSTR:
1753 case MONO_MARSHAL_CONV_STR_LPSTR:
1754 case MONO_MARSHAL_CONV_STR_LPTSTR:
1755 case MONO_MARSHAL_CONV_STR_BSTR:
1756 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1757 case MONO_MARSHAL_CONV_STR_TBSTR: {
1760 /* free space if free == true */
1761 mono_mb_emit_ldloc (mb, 2);
1762 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1763 mono_mb_emit_ldloc (mb, 1);
1764 mono_mb_emit_byte (mb, CEE_LDIND_I);
1765 mono_mb_emit_icall (mb, g_free);
1766 mono_mb_patch_short_branch (mb, pos);
1768 mono_mb_emit_ldloc (mb, 1);
1769 mono_mb_emit_ldloc (mb, 0);
1770 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1771 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1772 mono_mb_emit_byte (mb, stind_op);
1775 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1776 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1777 case MONO_MARSHAL_CONV_DEL_FTN:
1778 mono_mb_emit_ldloc (mb, 1);
1779 mono_mb_emit_ldloc (mb, 0);
1780 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1781 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1782 mono_mb_emit_byte (mb, stind_op);
1784 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1785 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1788 mono_mb_emit_ldloc (mb, 1); /* dst */
1789 mono_mb_emit_ldloc (mb, 0);
1790 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1791 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1792 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1795 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1796 MonoClass *eklass = NULL;
1799 if (type->type == MONO_TYPE_SZARRAY) {
1800 eklass = type->data.klass;
1802 g_assert_not_reached ();
1805 if (eklass->valuetype)
1806 esize = mono_class_native_size (eklass, NULL);
1808 esize = sizeof (gpointer);
1810 mono_mb_emit_ldloc (mb, 0);
1811 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1812 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1814 if (eklass->blittable) {
1815 mono_mb_emit_ldloc (mb, 1);
1816 mono_mb_emit_ldloc (mb, 0);
1817 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1818 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1819 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1820 mono_mb_emit_byte (mb, CEE_PREFIX1);
1821 mono_mb_emit_byte (mb, CEE_CPBLK);
1823 int array_var, src_var, dst_var, index_var;
1824 guint32 label2, label3;
1826 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1827 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1828 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1831 mono_mb_emit_ldloc (mb, 0);
1832 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1833 mono_mb_emit_stloc (mb, array_var);
1835 /* save the old src pointer */
1836 mono_mb_emit_ldloc (mb, 0);
1837 mono_mb_emit_stloc (mb, src_var);
1838 /* save the old dst pointer */
1839 mono_mb_emit_ldloc (mb, 1);
1840 mono_mb_emit_stloc (mb, dst_var);
1842 /* Emit marshalling loop */
1843 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1844 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1845 mono_mb_emit_stloc (mb, index_var);
1848 label2 = mono_mb_get_label (mb);
1849 mono_mb_emit_ldloc (mb, index_var);
1850 mono_mb_emit_ldloc (mb, array_var);
1851 mono_mb_emit_byte (mb, CEE_LDLEN);
1852 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1855 mono_mb_emit_ldloc (mb, array_var);
1856 mono_mb_emit_ldloc (mb, index_var);
1857 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1858 mono_mb_emit_stloc (mb, 0);
1860 /* dst is already set */
1862 /* Do the conversion */
1863 emit_struct_conv (mb, eklass, FALSE);
1866 mono_mb_emit_add_to_local (mb, index_var, 1);
1868 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1870 mono_mb_patch_branch (mb, label3);
1872 /* restore the old src pointer */
1873 mono_mb_emit_ldloc (mb, src_var);
1874 mono_mb_emit_stloc (mb, 0);
1875 /* restore the old dst pointer */
1876 mono_mb_emit_ldloc (mb, dst_var);
1877 mono_mb_emit_stloc (mb, 1);
1880 mono_mb_patch_branch (mb, pos);
1883 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1884 mono_mb_emit_ldloc (mb, 0);
1885 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1886 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1888 mono_mb_emit_ldloc (mb, 1);
1889 mono_mb_emit_ldloc (mb, 0);
1890 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1891 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1892 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1893 mono_mb_patch_short_branch (mb, pos);
1896 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1897 int src_var, dst_var;
1899 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1900 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1902 mono_mb_emit_ldloc (mb, 0);
1903 mono_mb_emit_byte (mb, CEE_LDIND_I);
1904 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1906 /* save the old src pointer */
1907 mono_mb_emit_ldloc (mb, 0);
1908 mono_mb_emit_stloc (mb, src_var);
1909 /* save the old dst pointer */
1910 mono_mb_emit_ldloc (mb, 1);
1911 mono_mb_emit_stloc (mb, dst_var);
1913 /* src = pointer to object data */
1914 mono_mb_emit_ldloc (mb, 0);
1915 mono_mb_emit_byte (mb, CEE_LDIND_I);
1916 mono_mb_emit_icon (mb, sizeof (MonoObject));
1917 mono_mb_emit_byte (mb, CEE_ADD);
1918 mono_mb_emit_stloc (mb, 0);
1920 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1922 /* restore the old src pointer */
1923 mono_mb_emit_ldloc (mb, src_var);
1924 mono_mb_emit_stloc (mb, 0);
1925 /* restore the old dst pointer */
1926 mono_mb_emit_ldloc (mb, dst_var);
1927 mono_mb_emit_stloc (mb, 1);
1929 mono_mb_patch_branch (mb, pos);
1934 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1935 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1936 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1937 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1939 #endif /* DISABLE_COM */
1941 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1944 mono_mb_emit_ldloc (mb, 0);
1945 mono_mb_emit_byte (mb, CEE_LDIND_I);
1946 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1947 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1948 mono_mb_patch_branch (mb, pos);
1950 /* Pull the handle field from SafeHandle */
1951 mono_mb_emit_ldloc (mb, 1);
1952 mono_mb_emit_ldloc (mb, 0);
1953 mono_mb_emit_byte (mb, CEE_LDIND_I);
1954 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1955 mono_mb_emit_byte (mb, CEE_LDIND_I);
1956 mono_mb_emit_byte (mb, CEE_STIND_I);
1960 case MONO_MARSHAL_CONV_HANDLEREF: {
1961 mono_mb_emit_ldloc (mb, 1);
1962 mono_mb_emit_ldloc (mb, 0);
1963 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1964 mono_mb_emit_byte (mb, CEE_ADD);
1965 mono_mb_emit_byte (mb, CEE_LDIND_I);
1966 mono_mb_emit_byte (mb, CEE_STIND_I);
1971 g_error ("marshalling conversion %d not implemented", conv);
1977 offset_of_first_nonstatic_field (MonoClass *klass)
1980 int fcount = mono_class_get_field_count (klass);
1981 mono_class_setup_fields (klass);
1982 for (i = 0; i < fcount; i++) {
1983 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
1984 return klass->fields[i].offset - sizeof (MonoObject);
1991 get_fixed_buffer_attr (MonoClassField *field, MonoType **out_etype, int *out_len)
1994 MonoCustomAttrInfo *cinfo;
1995 MonoCustomAttrEntry *attr;
1998 cinfo = mono_custom_attrs_from_field_checked (field->parent, field, &error);
1999 if (!is_ok (&error))
2003 for (aindex = 0; aindex < cinfo->num_attrs; ++aindex) {
2004 MonoClass *ctor_class = cinfo->attrs [aindex].ctor->klass;
2005 if (mono_class_has_parent (ctor_class, mono_class_get_fixed_buffer_attribute_class ())) {
2006 attr = &cinfo->attrs [aindex];
2012 MonoArray *typed_args, *named_args;
2013 CattrNamedArg *arginfo;
2016 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
2017 if (!is_ok (&error))
2019 g_assert (mono_array_length (typed_args) == 2);
2022 o = mono_array_get (typed_args, MonoObject*, 0);
2023 *out_etype = monotype_cast (o)->type;
2024 o = mono_array_get (typed_args, MonoObject*, 1);
2025 g_assert (o->vtable->klass == mono_defaults.int32_class);
2026 *out_len = *(gint32*)mono_object_unbox (o);
2029 if (cinfo && !cinfo->cached)
2030 mono_custom_attrs_free (cinfo);
2031 return attr != NULL;
2035 emit_fixed_buf_conv (MonoMethodBuilder *mb, MonoType *type, MonoType *etype, int len, gboolean to_object, int *out_usize)
2037 MonoClass *klass = mono_class_from_mono_type (type);
2038 MonoClass *eklass = mono_class_from_mono_type (etype);
2041 esize = mono_class_native_size (eklass, NULL);
2043 MonoMarshalNative string_encoding = klass->unicode ? MONO_NATIVE_LPWSTR : MONO_NATIVE_LPSTR;
2044 int usize = mono_class_value_size (eklass, NULL);
2045 int msize = mono_class_value_size (eklass, NULL);
2047 //printf ("FIXED: %s %d %d\n", mono_type_full_name (type), eklass->blittable, string_encoding);
2049 if (eklass->blittable) {
2050 /* copy the elements */
2051 mono_mb_emit_ldloc (mb, 1);
2052 mono_mb_emit_ldloc (mb, 0);
2053 mono_mb_emit_icon (mb, len * esize);
2054 mono_mb_emit_byte (mb, CEE_PREFIX1);
2055 mono_mb_emit_byte (mb, CEE_CPBLK);
2058 guint32 label2, label3;
2060 /* Emit marshalling loop */
2061 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2062 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2063 mono_mb_emit_stloc (mb, index_var);
2066 label2 = mono_mb_get_label (mb);
2067 mono_mb_emit_ldloc (mb, index_var);
2068 mono_mb_emit_icon (mb, len);
2069 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2071 /* src/dst is already set */
2073 /* Do the conversion */
2074 MonoTypeEnum t = etype->type;
2080 case MONO_TYPE_BOOLEAN:
2083 case MONO_TYPE_CHAR:
2089 mono_mb_emit_ldloc (mb, 1);
2090 mono_mb_emit_ldloc (mb, 0);
2091 if (t == MONO_TYPE_CHAR && string_encoding != MONO_NATIVE_LPWSTR) {
2093 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2094 mono_mb_emit_byte (mb, CEE_STIND_I2);
2096 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2097 mono_mb_emit_byte (mb, CEE_STIND_I1);
2101 mono_mb_emit_byte (mb, mono_type_to_ldind (etype));
2102 mono_mb_emit_byte (mb, mono_type_to_stind (etype));
2106 g_assert_not_reached ();
2111 mono_mb_emit_add_to_local (mb, 0, usize);
2112 mono_mb_emit_add_to_local (mb, 1, msize);
2114 mono_mb_emit_add_to_local (mb, 0, msize);
2115 mono_mb_emit_add_to_local (mb, 1, usize);
2119 mono_mb_emit_add_to_local (mb, index_var, 1);
2121 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2123 mono_mb_patch_branch (mb, label3);
2126 *out_usize = usize * len;
2130 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
2131 int offset_of_first_child_field, MonoMarshalNative string_encoding)
2133 MonoMarshalType *info;
2137 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
2139 info = mono_marshal_load_type_info (klass);
2141 if (info->native_size == 0)
2144 if (klass->blittable) {
2145 int usize = mono_class_value_size (klass, NULL);
2146 g_assert (usize == info->native_size);
2147 mono_mb_emit_ldloc (mb, 1);
2148 mono_mb_emit_ldloc (mb, 0);
2149 mono_mb_emit_icon (mb, usize);
2150 mono_mb_emit_byte (mb, CEE_PREFIX1);
2151 mono_mb_emit_byte (mb, CEE_CPBLK);
2154 mono_mb_emit_add_to_local (mb, 0, usize);
2155 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
2157 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
2158 mono_mb_emit_add_to_local (mb, 1, usize);
2163 if (klass != mono_class_try_get_safehandle_class ()) {
2164 if (mono_class_is_auto_layout (klass)) {
2165 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
2166 mono_type_full_name (&klass->byval_arg));
2167 mono_mb_emit_exception_marshal_directive (mb, msg);
2172 for (i = 0; i < info->num_fields; i++) {
2173 MonoMarshalNative ntype;
2174 MonoMarshalConv conv;
2175 MonoType *ftype = info->fields [i].field->type;
2178 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2180 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2183 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2186 msize = klass->instance_size - info->fields [i].field->offset;
2187 usize = info->native_size - info->fields [i].offset;
2189 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2190 usize = info->fields [i + 1].offset - info->fields [i].offset;
2193 if (klass != mono_class_try_get_safehandle_class ()){
2195 * FIXME: Should really check for usize==0 and msize>0, but we apply
2196 * the layout to the managed structure as well.
2199 if (mono_class_is_explicit_layout (klass) && (usize == 0)) {
2200 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2201 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2202 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2203 "reference field at the same offset as another field.",
2204 mono_type_full_name (&klass->byval_arg));
2209 case MONO_MARSHAL_CONV_NONE: {
2212 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2213 g_assert (!ftype->byref);
2214 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2215 mono_mb_emit_ldloc (mb, 1);
2216 mono_mb_emit_ldloc (mb, 0);
2217 mono_mb_emit_byte (mb, CEE_LDIND_I);
2218 mono_mb_emit_byte (mb, CEE_STIND_I);
2229 case MONO_TYPE_BOOLEAN:
2232 case MONO_TYPE_CHAR:
2238 mono_mb_emit_ldloc (mb, 1);
2239 mono_mb_emit_ldloc (mb, 0);
2240 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2242 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2243 mono_mb_emit_byte (mb, CEE_STIND_I2);
2245 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2246 mono_mb_emit_byte (mb, CEE_STIND_I1);
2249 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2250 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2253 case MONO_TYPE_VALUETYPE: {
2254 int src_var, dst_var;
2258 if (ftype->data.klass->enumtype) {
2259 ftype = mono_class_enum_basetype (ftype->data.klass);
2263 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2264 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2266 /* save the old src pointer */
2267 mono_mb_emit_ldloc (mb, 0);
2268 mono_mb_emit_stloc (mb, src_var);
2269 /* save the old dst pointer */
2270 mono_mb_emit_ldloc (mb, 1);
2271 mono_mb_emit_stloc (mb, dst_var);
2273 if (get_fixed_buffer_attr (info->fields [i].field, &etype, &len)) {
2274 emit_fixed_buf_conv (mb, ftype, etype, len, to_object, &usize);
2276 emit_struct_conv (mb, ftype->data.klass, to_object);
2279 /* restore the old src pointer */
2280 mono_mb_emit_ldloc (mb, src_var);
2281 mono_mb_emit_stloc (mb, 0);
2282 /* restore the old dst pointer */
2283 mono_mb_emit_ldloc (mb, dst_var);
2284 mono_mb_emit_stloc (mb, 1);
2287 case MONO_TYPE_OBJECT: {
2290 static MonoMethod *variant_clear = NULL;
2291 static MonoMethod *get_object_for_native_variant = NULL;
2294 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2295 if (!get_object_for_native_variant)
2296 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2297 mono_mb_emit_ldloc (mb, 1);
2298 mono_mb_emit_ldloc (mb, 0);
2299 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2300 mono_mb_emit_byte (mb, CEE_STIND_REF);
2302 mono_mb_emit_ldloc (mb, 0);
2303 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2306 static MonoMethod *get_native_variant_for_object = NULL;
2308 if (!get_native_variant_for_object)
2309 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2311 mono_mb_emit_ldloc (mb, 0);
2312 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2313 mono_mb_emit_ldloc (mb, 1);
2314 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2317 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2318 mono_mb_emit_exception_marshal_directive (mb, msg);
2324 g_warning ("marshaling type %02x not implemented", ftype->type);
2325 g_assert_not_reached ();
2330 int src_var, dst_var;
2332 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2333 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2335 /* save the old src pointer */
2336 mono_mb_emit_ldloc (mb, 0);
2337 mono_mb_emit_stloc (mb, src_var);
2338 /* save the old dst pointer */
2339 mono_mb_emit_ldloc (mb, 1);
2340 mono_mb_emit_stloc (mb, dst_var);
2343 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2345 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2347 /* restore the old src pointer */
2348 mono_mb_emit_ldloc (mb, src_var);
2349 mono_mb_emit_stloc (mb, 0);
2350 /* restore the old dst pointer */
2351 mono_mb_emit_ldloc (mb, dst_var);
2352 mono_mb_emit_stloc (mb, 1);
2357 mono_mb_emit_add_to_local (mb, 0, usize);
2358 mono_mb_emit_add_to_local (mb, 1, msize);
2360 mono_mb_emit_add_to_local (mb, 0, msize);
2361 mono_mb_emit_add_to_local (mb, 1, usize);
2367 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2369 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2373 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2375 /* Call DestroyStructure */
2376 /* FIXME: Only do this if needed */
2377 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2378 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2379 mono_mb_emit_ldloc (mb, struct_var);
2380 mono_mb_emit_icall (mb, mono_struct_delete_old);
2384 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2386 int pos_noabort, pos_noex;
2388 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2389 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2390 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2391 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2393 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2394 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2396 mono_mb_emit_icall (mb, checkpoint_func);
2397 /* Throw the exception returned by the checkpoint function, if any */
2398 mono_mb_emit_byte (mb, CEE_DUP);
2399 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2400 mono_mb_emit_byte (mb, CEE_THROW);
2401 mono_mb_patch_branch (mb, pos_noex);
2402 mono_mb_emit_byte (mb, CEE_POP);
2404 mono_mb_patch_branch (mb, pos_noabort);
2408 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2410 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2413 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2417 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2419 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2423 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2425 emit_thread_interrupt_checkpoint (mb);
2429 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2431 emit_thread_force_interrupt_checkpoint (mb);
2434 #endif /* DISABLE_JIT */
2436 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2437 static MonoAsyncResult *
2438 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2441 MonoMulticastDelegate *mcast_delegate;
2445 g_assert (delegate);
2446 mcast_delegate = (MonoMulticastDelegate *) delegate;
2447 if (mcast_delegate->delegates != NULL) {
2448 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2452 #ifndef DISABLE_REMOTING
2453 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2454 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2455 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2456 /* If the target is a proxy, make a direct call. Is proxy's work
2457 // to make the call asynchronous.
2459 MonoMethodMessage *msg;
2460 MonoDelegate *async_callback;
2462 MonoAsyncResult *ares;
2464 MonoArray *out_args;
2465 method = delegate->method;
2467 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2468 if (mono_error_set_pending_exception (&error))
2470 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2471 if (mono_error_set_pending_exception (&error))
2473 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2474 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2475 MONO_OBJECT_SETREF (msg, async_result, ares);
2476 msg->call_type = CallType_BeginInvoke;
2479 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2480 if (!mono_error_ok (&error)) {
2481 mono_error_set_pending_exception (&error);
2485 mono_set_pending_exception ((MonoException *) exc);
2491 klass = delegate->object.vtable->klass;
2493 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2495 method = mono_get_delegate_invoke (klass);
2498 MonoAsyncResult *result = mono_threadpool_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2499 mono_error_set_pending_exception (&error);
2506 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2508 int i, params_var, tmp_var;
2510 /* allocate local (pointer) *params[] */
2511 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2512 /* allocate local (pointer) tmp */
2513 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2515 /* alloate space on stack to store an array of pointers to the arguments */
2516 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2517 mono_mb_emit_byte (mb, CEE_PREFIX1);
2518 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2519 mono_mb_emit_stloc (mb, params_var);
2522 mono_mb_emit_ldloc (mb, params_var);
2523 mono_mb_emit_stloc (mb, tmp_var);
2525 if (save_this && sig->hasthis) {
2526 mono_mb_emit_ldloc (mb, tmp_var);
2527 mono_mb_emit_ldarg_addr (mb, 0);
2528 mono_mb_emit_byte (mb, CEE_STIND_I);
2529 /* tmp = tmp + sizeof (gpointer) */
2530 if (sig->param_count)
2531 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2535 for (i = 0; i < sig->param_count; i++) {
2536 mono_mb_emit_ldloc (mb, tmp_var);
2537 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2538 mono_mb_emit_byte (mb, CEE_STIND_I);
2539 /* tmp = tmp + sizeof (gpointer) */
2540 if (i < (sig->param_count - 1))
2541 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2547 #endif /* DISABLE_JIT */
2550 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2554 GString *res = g_string_new ("");
2557 g_string_append (res, prefix);
2558 g_string_append_c (res, '_');
2561 mono_type_get_desc (res, sig->ret, FALSE);
2564 g_string_append (res, "__this__");
2566 for (i = 0; i < sig->param_count; ++i) {
2567 g_string_append_c (res, '_');
2568 mono_type_get_desc (res, sig->params [i], FALSE);
2571 g_string_free (res, FALSE);
2576 * mono_marshal_get_string_encoding:
2578 * Return the string encoding which should be used for a given parameter.
2580 static MonoMarshalNative
2581 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2583 /* First try the parameter marshal info */
2585 if (spec->native == MONO_NATIVE_LPARRAY) {
2586 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2587 return spec->data.array_data.elem_type;
2590 return spec->native;
2594 return MONO_NATIVE_LPSTR;
2596 /* Then try the method level marshal info */
2597 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2598 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2599 return MONO_NATIVE_LPSTR;
2600 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2601 return MONO_NATIVE_LPWSTR;
2602 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2604 return MONO_NATIVE_LPWSTR;
2606 return MONO_NATIVE_LPSTR;
2609 return MONO_NATIVE_LPSTR;
2613 static MonoMarshalConv
2614 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2616 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2619 case MONO_NATIVE_LPWSTR:
2620 return MONO_MARSHAL_CONV_STR_LPWSTR;
2621 case MONO_NATIVE_LPSTR:
2622 case MONO_NATIVE_VBBYREFSTR:
2623 return MONO_MARSHAL_CONV_STR_LPSTR;
2624 case MONO_NATIVE_LPTSTR:
2625 return MONO_MARSHAL_CONV_STR_LPTSTR;
2626 case MONO_NATIVE_BSTR:
2627 return MONO_MARSHAL_CONV_STR_BSTR;
2628 case MONO_NATIVE_UTF8STR:
2629 return MONO_MARSHAL_CONV_STR_UTF8STR;
2631 return MONO_MARSHAL_CONV_INVALID;
2635 static MonoMarshalConv
2636 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2638 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2641 case MONO_NATIVE_LPWSTR:
2642 return MONO_MARSHAL_CONV_SB_LPWSTR;
2643 case MONO_NATIVE_LPSTR:
2644 return MONO_MARSHAL_CONV_SB_LPSTR;
2645 case MONO_NATIVE_UTF8STR:
2646 return MONO_MARSHAL_CONV_SB_UTF8STR;
2647 case MONO_NATIVE_LPTSTR:
2648 return MONO_MARSHAL_CONV_SB_LPTSTR;
2650 return MONO_MARSHAL_CONV_INVALID;
2654 static MonoMarshalConv
2655 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2657 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2662 case MONO_NATIVE_LPWSTR:
2664 return MONO_MARSHAL_CONV_LPWSTR_STR;
2665 case MONO_NATIVE_UTF8STR:
2666 return MONO_MARSHAL_CONV_UTF8STR_STR;
2667 case MONO_NATIVE_LPSTR:
2668 case MONO_NATIVE_VBBYREFSTR:
2669 return MONO_MARSHAL_CONV_LPSTR_STR;
2670 case MONO_NATIVE_LPTSTR:
2674 return MONO_MARSHAL_CONV_LPTSTR_STR;
2675 case MONO_NATIVE_BSTR:
2676 return MONO_MARSHAL_CONV_BSTR_STR;
2678 return MONO_MARSHAL_CONV_INVALID;
2682 static MonoMarshalConv
2683 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2685 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2690 case MONO_NATIVE_LPWSTR:
2692 * mono_string_builder_to_utf16 does not allocate a
2693 * new buffer, so no need to free it.
2696 return MONO_MARSHAL_CONV_LPWSTR_SB;
2697 case MONO_NATIVE_UTF8STR:
2698 return MONO_MARSHAL_CONV_UTF8STR_SB;
2699 case MONO_NATIVE_LPSTR:
2700 return MONO_MARSHAL_CONV_LPSTR_SB;
2702 case MONO_NATIVE_LPTSTR:
2703 return MONO_MARSHAL_CONV_LPTSTR_SB;
2706 return MONO_MARSHAL_CONV_INVALID;
2711 * Return whenever a field of a native structure or an array member needs to
2715 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2717 MonoMarshalNative encoding;
2720 case MONO_TYPE_VALUETYPE:
2721 /* FIXME: Optimize this */
2723 case MONO_TYPE_OBJECT:
2724 case MONO_TYPE_CLASS:
2725 if (t->data.klass == mono_defaults.stringbuilder_class) {
2727 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2731 case MONO_TYPE_STRING:
2732 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2733 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2740 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2743 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2746 mono_marshal_lock ();
2749 g_hash_table_new (hash_func, equal_func);
2750 mono_memory_barrier ();
2753 mono_marshal_unlock ();
2759 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2761 return get_cache (var, hash_func, equal_func);
2765 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2769 mono_marshal_lock ();
2770 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2771 mono_marshal_unlock ();
2778 * Create a MonoMethod from MB, set INFO as wrapper info.
2781 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2782 int max_stack, WrapperInfo *info)
2786 res = mono_mb_create_method (mb, sig, max_stack);
2788 mono_marshal_set_wrapper_info (res, info);
2792 /* Create the method from the builder and place it in the cache */
2794 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2795 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2796 int max_stack, WrapperInfo *info, gboolean *out_found)
2803 mono_marshal_lock ();
2804 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2805 mono_marshal_unlock ();
2808 newm = mono_mb_create_method (mb, sig, max_stack);
2809 mono_marshal_lock ();
2810 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2813 g_hash_table_insert (cache, key, res);
2814 mono_marshal_set_wrapper_info (res, info);
2815 mono_marshal_unlock ();
2819 mono_marshal_unlock ();
2820 mono_free_method (newm);
2828 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2829 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2832 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2836 * mono_marshal_method_from_wrapper:
2839 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2842 int wrapper_type = wrapper->wrapper_type;
2845 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2848 info = mono_marshal_get_wrapper_info (wrapper);
2850 switch (wrapper_type) {
2851 case MONO_WRAPPER_REMOTING_INVOKE:
2852 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2853 case MONO_WRAPPER_XDOMAIN_INVOKE:
2854 m = info->d.remoting.method;
2855 if (wrapper->is_inflated) {
2859 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2860 * contains an uninflated method.
2862 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2863 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2867 case MONO_WRAPPER_SYNCHRONIZED:
2868 m = info->d.synchronized.method;
2869 if (wrapper->is_inflated) {
2872 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2873 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2877 case MONO_WRAPPER_UNBOX:
2878 return info->d.unbox.method;
2879 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2880 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2881 return info->d.managed_to_native.method;
2884 case MONO_WRAPPER_RUNTIME_INVOKE:
2885 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2886 return info->d.runtime_invoke.method;
2889 case MONO_WRAPPER_DELEGATE_INVOKE:
2891 return info->d.delegate_invoke.method;
2900 * mono_marshal_get_wrapper_info:
2902 * Retrieve the WrapperInfo structure associated with WRAPPER.
2905 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2907 g_assert (wrapper->wrapper_type);
2909 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2913 * mono_marshal_set_wrapper_info:
2915 * Set the WrapperInfo structure associated with the wrapper
2916 * method METHOD to INFO.
2919 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2923 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2926 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2931 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2935 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2936 info->subtype = subtype;
2941 * get_wrapper_target_class:
2943 * Return the class where a wrapper method should be placed.
2946 get_wrapper_target_class (MonoImage *image)
2953 * - can't put all wrappers into an mscorlib class, because they reference
2954 * metadata (signature) so they should be put into the same image as the
2955 * method they wrap, so they are unloaded together.
2956 * - putting them into a class with a type initalizer could cause the
2957 * initializer to be executed which can be a problem if the wrappers are
2959 * - putting them into an inflated class can cause problems if the the
2960 * class is deleted because it references an image which is unloaded.
2961 * To avoid these problems, we put the wrappers into the <Module> class of
2964 if (image_is_dynamic (image)) {
2965 klass = ((MonoDynamicImage*)image)->wrappers_type;
2967 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2968 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2976 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2977 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2981 * check_generic_wrapper_cache:
2983 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2984 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2985 * generic method definition.
2988 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2991 MonoMethod *inst, *def;
2992 MonoGenericContext *ctx;
2994 g_assert (orig_method->is_inflated);
2995 ctx = mono_method_get_context (orig_method);
2998 * Look for the instance
3000 res = mono_marshal_find_in_cache (cache, key);
3005 * Look for the definition
3007 def = mono_marshal_find_in_cache (cache, def_key);
3010 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3011 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3013 mono_memory_barrier ();
3014 mono_marshal_lock ();
3015 res = (MonoMethod *)g_hash_table_lookup (cache, key);
3017 g_hash_table_insert (cache, key, inst);
3020 mono_marshal_unlock ();
3027 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
3030 MonoMethod *inst, *res;
3033 * We use the same cache for the generic definition and the instances.
3035 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3036 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3037 mono_memory_barrier ();
3038 mono_marshal_lock ();
3039 res = (MonoMethod *)g_hash_table_lookup (cache, key);
3041 g_hash_table_insert (cache, key, inst);
3044 mono_marshal_unlock ();
3049 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
3053 MonoMethod *inst, *def;
3056 * Look for the instance
3058 res = mono_marshal_find_in_cache (cache, orig_method->klass);
3063 * Look for the definition
3065 def = mono_marshal_find_in_cache (cache, def_method->klass);
3067 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3068 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3071 mono_memory_barrier ();
3072 mono_marshal_lock ();
3073 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3075 g_hash_table_insert (cache, orig_method->klass, inst);
3078 mono_marshal_unlock ();
3085 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
3088 MonoMethod *inst, *res;
3089 WrapperInfo *ginfo, *info;
3092 * We use the same cache for the generic definition and the instances.
3094 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3095 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3097 ginfo = mono_marshal_get_wrapper_info (def);
3099 info = (WrapperInfo *)mono_image_alloc0 (def->klass->image, sizeof (WrapperInfo));
3100 info->subtype = ginfo->subtype;
3101 if (info->subtype == WRAPPER_SUBTYPE_NONE) {
3102 info->d.delegate_invoke.method = mono_class_inflate_generic_method_checked (ginfo->d.delegate_invoke.method, ctx, &error);
3103 mono_error_assert_ok (&error);
3107 mono_memory_barrier ();
3108 mono_marshal_lock ();
3109 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3111 g_hash_table_insert (cache, orig_method->klass, inst);
3114 mono_marshal_unlock ();
3119 * mono_marshal_get_delegate_begin_invoke:
3122 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
3124 MonoMethodSignature *sig;
3125 MonoMethodBuilder *mb;
3130 MonoGenericContext *ctx = NULL;
3131 MonoMethod *orig_method = NULL;
3133 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3134 !strcmp (method->name, "BeginInvoke"));
3137 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3139 if (method->is_inflated) {
3140 orig_method = method;
3141 ctx = &((MonoMethodInflated*)method)->context;
3142 method = ((MonoMethodInflated*)method)->declaring;
3145 sig = mono_signature_no_pinvoke (method);
3151 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
3152 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3156 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
3157 (GHashFunc)mono_signature_hash,
3158 (GCompareFunc)mono_metadata_signature_equal);
3159 if ((res = mono_marshal_find_in_cache (cache, sig)))
3163 g_assert (sig->hasthis);
3165 name = mono_signature_to_name (sig, "begin_invoke");
3167 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3169 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3173 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3175 mono_mb_emit_ldarg (mb, 0);
3176 mono_mb_emit_ldloc (mb, params_var);
3177 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3178 mono_mb_emit_byte (mb, CEE_RET);
3183 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3184 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3186 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3193 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
3195 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3198 MonoDomain *domain = mono_domain_get ();
3199 MonoAsyncResult *ares;
3200 MonoMethod *method = NULL;
3201 MonoMethodSignature *sig;
3202 MonoMethodMessage *msg;
3203 MonoObject *res, *exc;
3204 MonoArray *out_args;
3207 g_assert (delegate);
3209 if (!delegate->method_info) {
3210 g_assert (delegate->method);
3211 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
3212 if (!mono_error_ok (&error)) {
3213 mono_error_set_pending_exception (&error);
3216 MONO_OBJECT_SETREF (delegate, method_info, rm);
3219 if (!delegate->method_info || !delegate->method_info->method)
3220 g_assert_not_reached ();
3222 klass = delegate->object.vtable->klass;
3224 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3225 g_assert (method != NULL);
3227 sig = mono_signature_no_pinvoke (method);
3229 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3230 if (mono_error_set_pending_exception (&error))
3233 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3235 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."));
3239 if (ares->async_delegate != (MonoObject*)delegate) {
3240 mono_set_pending_exception (mono_get_exception_invalid_operation (
3241 "The IAsyncResult object provided does not match this delegate."));
3245 #ifndef DISABLE_REMOTING
3246 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3247 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3248 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3249 if (!mono_error_ok (&error)) {
3250 mono_error_set_pending_exception (&error);
3253 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3254 if (mono_error_set_pending_exception (&error))
3256 msg->call_type = CallType_EndInvoke;
3257 MONO_OBJECT_SETREF (msg, async_result, ares);
3258 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3259 if (!mono_error_ok (&error)) {
3260 mono_error_set_pending_exception (&error);
3266 res = mono_threadpool_end_invoke (ares, &out_args, &exc, &error);
3267 if (mono_error_set_pending_exception (&error))
3272 if (((MonoException*)exc)->stack_trace) {
3273 MonoError inner_error;
3274 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3275 if (is_ok (&inner_error)) {
3277 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3279 MonoString *tmp_str = mono_string_new_checked (domain, tmp, &inner_error);
3281 if (is_ok (&inner_error))
3282 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, tmp_str);
3284 if (!is_ok (&inner_error))
3285 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3287 mono_set_pending_exception ((MonoException*)exc);
3290 mono_method_return_message_restore (method, params, out_args, &error);
3291 mono_error_set_pending_exception (&error);
3298 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3300 MonoType *t = mono_type_get_underlying_type (return_type);
3302 if (return_type->byref)
3303 return_type = &mono_defaults.int_class->byval_arg;
3306 case MONO_TYPE_VOID:
3307 g_assert_not_reached ();
3310 case MONO_TYPE_STRING:
3311 case MONO_TYPE_CLASS:
3312 case MONO_TYPE_OBJECT:
3313 case MONO_TYPE_ARRAY:
3314 case MONO_TYPE_SZARRAY:
3318 case MONO_TYPE_BOOLEAN:
3321 case MONO_TYPE_CHAR:
3331 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3332 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3334 case MONO_TYPE_GENERICINST:
3335 if (!mono_type_generic_inst_is_valuetype (t))
3338 case MONO_TYPE_VALUETYPE: {
3339 MonoClass *klass = mono_class_from_mono_type (return_type);
3340 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3341 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3345 case MONO_TYPE_MVAR: {
3346 MonoClass *klass = mono_class_from_mono_type (return_type);
3347 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3351 g_warning ("type 0x%x not handled", return_type->type);
3352 g_assert_not_reached ();
3355 mono_mb_emit_byte (mb, CEE_RET);
3358 #endif /* DISABLE_JIT */
3361 * mono_marshal_get_delegate_end_invoke:
3364 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3366 MonoMethodSignature *sig;
3367 MonoMethodBuilder *mb;
3372 MonoGenericContext *ctx = NULL;
3373 MonoMethod *orig_method = NULL;
3375 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3376 !strcmp (method->name, "EndInvoke"));
3379 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3381 if (method->is_inflated) {
3382 orig_method = method;
3383 ctx = &((MonoMethodInflated*)method)->context;
3384 method = ((MonoMethodInflated*)method)->declaring;
3387 sig = mono_signature_no_pinvoke (method);
3393 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3394 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3398 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3399 (GHashFunc)mono_signature_hash,
3400 (GCompareFunc)mono_metadata_signature_equal);
3401 if ((res = mono_marshal_find_in_cache (cache, sig)))
3405 g_assert (sig->hasthis);
3407 name = mono_signature_to_name (sig, "end_invoke");
3409 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3411 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3415 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3417 mono_mb_emit_ldarg (mb, 0);
3418 mono_mb_emit_ldloc (mb, params_var);
3419 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3421 if (sig->ret->type == MONO_TYPE_VOID) {
3422 mono_mb_emit_byte (mb, CEE_POP);
3423 mono_mb_emit_byte (mb, CEE_RET);
3425 mono_mb_emit_restore_result (mb, sig->ret);
3430 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3431 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3433 res = mono_mb_create_and_cache (cache, sig,
3434 mb, sig, sig->param_count + 16);
3443 MonoMethodSignature *sig;
3445 } SignaturePointerPair;
3448 signature_pointer_pair_hash (gconstpointer data)
3450 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3452 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3456 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3458 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3459 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3463 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3465 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3467 return pair->pointer == user_data;
3471 free_signature_pointer_pair (SignaturePointerPair *pair)
3477 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3479 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3481 MonoMethodBuilder *mb;
3484 gpointer cache_key = NULL;
3485 SignaturePointerPair key = { NULL, NULL };
3486 SignaturePointerPair *new_key;
3487 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3488 int pos0, pos1, pos2;
3490 MonoClass *target_class = NULL;
3491 gboolean closed_over_null = FALSE;
3492 MonoGenericContext *ctx = NULL;
3493 MonoGenericContainer *container = NULL;
3494 MonoMethod *orig_method = method;
3496 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3500 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3501 !strcmp (method->name, "Invoke"));
3503 invoke_sig = sig = mono_signature_no_pinvoke (method);
3506 * If the delegate target is null, and the target method is not static, a virtual
3507 * call is made to that method with the first delegate argument as this. This is
3508 * a non-documented .NET feature.
3511 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3512 if (target_method->is_inflated) {
3514 MonoType *target_type;
3516 g_assert (method->signature->hasthis);
3517 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3518 mono_method_get_context (method), &error);
3519 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3520 target_class = mono_class_from_mono_type (target_type);
3522 target_class = target_method->klass;
3525 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3528 if (static_method_with_first_arg_bound) {
3529 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3530 g_assert (!callvirt);
3531 invoke_sig = mono_method_signature (target_method);
3535 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3537 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3538 ctx = &((MonoMethodInflated*)method)->context;
3539 method = ((MonoMethodInflated*)method)->declaring;
3541 container = mono_method_get_generic_container (method);
3543 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
3544 g_assert (container);
3546 invoke_sig = sig = mono_signature_no_pinvoke (method);
3553 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3554 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3557 cache_key = method->klass;
3558 } else if (static_method_with_first_arg_bound) {
3559 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3560 (GHashFunc)mono_signature_hash,
3561 (GCompareFunc)mono_metadata_signature_equal);
3563 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3565 res = mono_marshal_find_in_cache (cache, invoke_sig);
3568 cache_key = invoke_sig;
3569 } else if (callvirt) {
3570 GHashTable **cache_ptr;
3572 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3574 /* We need to cache the signature+method pair */
3575 mono_marshal_lock ();
3577 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3579 key.sig = invoke_sig;
3580 key.pointer = target_method;
3581 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3582 mono_marshal_unlock ();
3586 // Inflated methods should not be in this cache because it's not stored on the imageset.
3587 g_assert (!method->is_inflated);
3588 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3589 (GHashFunc)mono_signature_hash,
3590 (GCompareFunc)mono_metadata_signature_equal);
3591 res = mono_marshal_find_in_cache (cache, sig);
3597 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3598 static_sig->hasthis = 0;
3599 if (!static_method_with_first_arg_bound)
3600 invoke_sig = static_sig;
3602 if (static_method_with_first_arg_bound)
3603 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3604 else if (closed_over_null)
3605 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3607 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3609 name = mono_signature_to_name (invoke_sig, "invoke");
3611 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3613 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3617 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3619 /* allocate local 0 (object) */
3620 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3621 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3622 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3623 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3624 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3627 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3629 g_assert (sig->hasthis);
3632 * {type: sig->ret} res;
3633 * if (delegates == null) {
3634 * return this.<target> ( args .. );
3636 * int i = 0, len = this.delegates.Length;
3638 * res = this.delegates [i].Invoke ( args .. );
3639 * } while (++i < len);
3644 /* this wrapper can be used in unmanaged-managed transitions */
3645 emit_thread_interrupt_checkpoint (mb);
3647 /* delegates = this.delegates */
3648 mono_mb_emit_ldarg (mb, 0);
3649 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3650 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3651 mono_mb_emit_stloc (mb, local_delegates);
3653 /* if (delegates == null) */
3654 mono_mb_emit_ldloc (mb, local_delegates);
3655 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3657 /* return target.<target_method|method_ptr> ( args .. ); */
3659 /* target = d.target; */
3660 mono_mb_emit_ldarg (mb, 0);
3661 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3662 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3663 mono_mb_emit_stloc (mb, local_target);
3665 /*static methods with bound first arg can have null target and still be bound*/
3666 if (!static_method_with_first_arg_bound) {
3667 /* if target != null */
3668 mono_mb_emit_ldloc (mb, local_target);
3669 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3671 /* then call this->method_ptr nonstatic */
3674 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3676 mono_mb_emit_ldloc (mb, local_target);
3677 for (i = 0; i < sig->param_count; ++i)
3678 mono_mb_emit_ldarg (mb, i + 1);
3679 mono_mb_emit_ldarg (mb, 0);
3680 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3681 mono_mb_emit_byte (mb, CEE_LDIND_I);
3682 mono_mb_emit_ldarg (mb, 0);
3683 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3684 mono_mb_emit_byte (mb, CEE_LDIND_I);
3685 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3686 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3687 mono_mb_emit_byte (mb, CEE_RET);
3690 /* else [target == null] call this->method_ptr static */
3691 mono_mb_patch_branch (mb, pos0);
3695 if (!closed_over_null) {
3696 if (target_class->valuetype) {
3697 mono_mb_emit_ldarg (mb, 1);
3698 for (i = 1; i < sig->param_count; ++i)
3699 mono_mb_emit_ldarg (mb, i + 1);
3700 mono_mb_emit_op (mb, CEE_CALL, target_method);
3702 mono_mb_emit_ldarg (mb, 1);
3703 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3704 for (i = 1; i < sig->param_count; ++i)
3705 mono_mb_emit_ldarg (mb, i + 1);
3706 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3709 mono_mb_emit_byte (mb, CEE_LDNULL);
3710 for (i = 0; i < sig->param_count; ++i)
3711 mono_mb_emit_ldarg (mb, i + 1);
3712 mono_mb_emit_op (mb, CEE_CALL, target_method);
3715 if (static_method_with_first_arg_bound) {
3716 mono_mb_emit_ldloc (mb, local_target);
3717 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3718 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3720 for (i = 0; i < sig->param_count; ++i)
3721 mono_mb_emit_ldarg (mb, i + 1);
3722 mono_mb_emit_ldarg (mb, 0);
3723 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3724 mono_mb_emit_byte (mb, CEE_LDIND_I);
3725 mono_mb_emit_ldarg (mb, 0);
3726 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3727 mono_mb_emit_byte (mb, CEE_LDIND_I);
3728 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3729 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3732 mono_mb_emit_byte (mb, CEE_RET);
3734 /* else [delegates != null] */
3735 mono_mb_patch_branch (mb, pos2);
3737 /* len = delegates.Length; */
3738 mono_mb_emit_ldloc (mb, local_delegates);
3739 mono_mb_emit_byte (mb, CEE_LDLEN);
3740 mono_mb_emit_byte (mb, CEE_CONV_I4);
3741 mono_mb_emit_stloc (mb, local_len);
3744 mono_mb_emit_icon (mb, 0);
3745 mono_mb_emit_stloc (mb, local_i);
3747 pos1 = mono_mb_get_label (mb);
3749 /* d = delegates [i]; */
3750 mono_mb_emit_ldloc (mb, local_delegates);
3751 mono_mb_emit_ldloc (mb, local_i);
3752 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3753 mono_mb_emit_stloc (mb, local_d);
3755 /* res = d.Invoke ( args .. ); */
3756 mono_mb_emit_ldloc (mb, local_d);
3757 for (i = 0; i < sig->param_count; i++)
3758 mono_mb_emit_ldarg (mb, i + 1);
3760 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3763 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3764 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3767 mono_mb_emit_stloc (mb, local_res);
3770 mono_mb_emit_add_to_local (mb, local_i, 1);
3773 mono_mb_emit_ldloc (mb, local_i);
3774 mono_mb_emit_ldloc (mb, local_len);
3775 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3779 mono_mb_emit_ldloc (mb, local_res);
3780 mono_mb_emit_byte (mb, CEE_RET);
3782 mb->skip_visibility = 1;
3783 #endif /* DISABLE_JIT */
3785 info = mono_wrapper_info_create (mb, subtype);
3786 info->d.delegate_invoke.method = method;
3791 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3792 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3793 } else if (callvirt) {
3794 new_key = g_new0 (SignaturePointerPair, 1);
3797 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3801 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3805 /* mono_method_print_code (res); */
3811 * mono_marshal_get_delegate_invoke:
3812 * The returned method invokes all methods in a multicast delegate.
3815 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3817 gboolean callvirt = FALSE;
3818 gboolean static_method_with_first_arg_bound = FALSE;
3819 MonoMethod *target_method = NULL;
3820 MonoMethodSignature *sig;
3822 sig = mono_signature_no_pinvoke (method);
3824 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3826 target_method = del->method;
3829 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3830 static_method_with_first_arg_bound = TRUE;
3831 target_method = del->method;
3834 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3838 MonoMethodSignature *ctor_sig;
3839 MonoMethodSignature *sig;
3842 /* protected by the marshal lock, contains CtorSigPair pointers */
3843 static GSList *strsig_list = NULL;
3845 static MonoMethodSignature *
3846 lookup_string_ctor_signature (MonoMethodSignature *sig)
3848 MonoMethodSignature *callsig;
3852 mono_marshal_lock ();
3854 for (item = strsig_list; item; item = item->next) {
3855 cs = (CtorSigPair *)item->data;
3856 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3857 * because it is lock-free.
3859 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3864 mono_marshal_unlock ();
3868 static MonoMethodSignature *
3869 add_string_ctor_signature (MonoMethod *method)
3871 MonoMethodSignature *callsig;
3874 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3875 callsig->ret = &mono_defaults.string_class->byval_arg;
3876 cs = g_new (CtorSigPair, 1);
3878 cs->ctor_sig = mono_method_signature (method);
3880 mono_marshal_lock ();
3881 strsig_list = g_slist_prepend (strsig_list, cs);
3882 mono_marshal_unlock ();
3887 * mono_marshal_get_string_ctor_signature:
3889 * Return the modified signature used by string ctors (they return the newly created
3892 MonoMethodSignature*
3893 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3895 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3897 sig = add_string_ctor_signature (method);
3903 get_runtime_invoke_type (MonoType *t, gboolean ret)
3906 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3908 /* Can't share this with 'I' as that needs another indirection */
3909 return &mono_defaults.int_class->this_arg;
3912 if (MONO_TYPE_IS_REFERENCE (t))
3913 return &mono_defaults.object_class->byval_arg;
3916 /* The result needs to be boxed */
3921 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3924 return &mono_defaults.sbyte_class->byval_arg;
3926 return &mono_defaults.int16_class->byval_arg;
3928 return &mono_defaults.int32_class->byval_arg;
3931 return &mono_defaults.int64_class->byval_arg;
3932 case MONO_TYPE_BOOLEAN:
3933 return &mono_defaults.byte_class->byval_arg;
3934 case MONO_TYPE_CHAR:
3935 return &mono_defaults.uint16_class->byval_arg;
3937 return &mono_defaults.int_class->byval_arg;
3938 case MONO_TYPE_VALUETYPE:
3939 if (t->data.klass->enumtype) {
3940 t = mono_class_enum_basetype (t->data.klass);
3950 * mono_marshal_get_runtime_invoke_sig:
3952 * Return a common signature used for sharing runtime invoke wrappers.
3954 static MonoMethodSignature*
3955 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3957 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3960 res->generic_param_count = 0;
3961 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3962 for (i = 0; i < res->param_count; ++i)
3963 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3969 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3971 /* Can't share wrappers which return a vtype since it needs to be boxed */
3972 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))
3975 return mono_metadata_signature_equal (sig1, sig2);
3983 * Emit the call to the wrapper method from a runtime invoke wrapper.
3986 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3987 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3989 gboolean virtual_, gboolean need_direct_wrapper)
3991 static MonoString *string_dummy = NULL;
3993 int *tmp_nullable_locals;
3994 gboolean void_ret = FALSE;
3995 gboolean string_ctor = method && method->string_ctor;
3997 /* to make it work with our special string constructors */
3998 if (!string_dummy) {
3999 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
4000 string_dummy = mono_string_new_wrapper ("dummy");
4004 g_assert (sig->hasthis);
4005 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4010 if (mono_gc_is_moving ()) {
4011 mono_mb_emit_ptr (mb, &string_dummy);
4012 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4014 mono_mb_emit_ptr (mb, string_dummy);
4017 mono_mb_emit_ldarg (mb, 0);
4021 tmp_nullable_locals = g_new0 (int, sig->param_count);
4023 for (i = 0; i < sig->param_count; i++) {
4024 MonoType *t = sig->params [i];
4027 mono_mb_emit_ldarg (mb, 1);
4029 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4030 mono_mb_emit_byte (mb, CEE_ADD);
4034 mono_mb_emit_byte (mb, CEE_LDIND_I);
4035 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4036 * So to make this work we unbox it to a local variablee and push a reference to that.
4038 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4039 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4041 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4042 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4043 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4048 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4049 type = sig->params [i]->type;
4053 case MONO_TYPE_BOOLEAN:
4057 case MONO_TYPE_CHAR:
4066 mono_mb_emit_byte (mb, CEE_LDIND_I);
4067 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4069 case MONO_TYPE_STRING:
4070 case MONO_TYPE_CLASS:
4071 case MONO_TYPE_ARRAY:
4073 case MONO_TYPE_SZARRAY:
4074 case MONO_TYPE_OBJECT:
4075 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4077 case MONO_TYPE_GENERICINST:
4078 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4079 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4084 case MONO_TYPE_VALUETYPE:
4085 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4086 type = mono_class_enum_basetype (t->data.klass)->type;
4089 mono_mb_emit_byte (mb, CEE_LDIND_I);
4090 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4091 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4092 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4093 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4095 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4099 g_assert_not_reached ();
4104 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4105 } else if (need_direct_wrapper) {
4106 mono_mb_emit_op (mb, CEE_CALL, method);
4108 mono_mb_emit_ldarg (mb, 3);
4109 mono_mb_emit_calli (mb, callsig);
4112 if (sig->ret->byref) {
4114 g_assert_not_reached ();
4117 switch (sig->ret->type) {
4118 case MONO_TYPE_VOID:
4122 case MONO_TYPE_BOOLEAN:
4123 case MONO_TYPE_CHAR:
4136 case MONO_TYPE_VALUETYPE:
4137 case MONO_TYPE_TYPEDBYREF:
4138 case MONO_TYPE_GENERICINST:
4139 /* box value types */
4140 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4142 case MONO_TYPE_STRING:
4143 case MONO_TYPE_CLASS:
4144 case MONO_TYPE_ARRAY:
4145 case MONO_TYPE_SZARRAY:
4146 case MONO_TYPE_OBJECT:
4150 /* The result is an IntPtr */
4151 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4154 g_assert_not_reached ();
4158 mono_mb_emit_stloc (mb, loc_res);
4160 /* Convert back nullable-byref arguments */
4161 for (i = 0; i < sig->param_count; i++) {
4162 MonoType *t = sig->params [i];
4165 * Box the result and put it back into the array, the caller will have
4166 * to obtain it from there.
4168 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4169 mono_mb_emit_ldarg (mb, 1);
4170 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4171 mono_mb_emit_byte (mb, CEE_ADD);
4173 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4174 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4176 mono_mb_emit_byte (mb, CEE_STIND_REF);
4180 g_free (tmp_nullable_locals);
4184 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
4185 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4186 gboolean virtual_, gboolean need_direct_wrapper)
4189 MonoExceptionClause *clause;
4190 int loc_res, loc_exc;
4192 /* The wrapper looks like this:
4198 * } catch (Exception e) {
4206 /* allocate local 0 (object) tmp */
4207 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4208 /* allocate local 1 (object) exc */
4209 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4211 /* *exc is assumed to be initialized to NULL by the caller */
4213 mono_mb_emit_byte (mb, CEE_LDARG_2);
4214 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4219 labels [1] = mono_mb_get_label (mb);
4220 emit_thread_force_interrupt_checkpoint (mb);
4221 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4223 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4225 /* Add a try clause around the call */
4226 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
4227 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4228 clause->data.catch_class = mono_defaults.exception_class;
4229 clause->try_offset = labels [1];
4230 clause->try_len = mono_mb_get_label (mb) - labels [1];
4232 clause->handler_offset = mono_mb_get_label (mb);
4235 mono_mb_emit_stloc (mb, loc_exc);
4236 mono_mb_emit_byte (mb, CEE_LDARG_2);
4237 mono_mb_emit_ldloc (mb, loc_exc);
4238 mono_mb_emit_byte (mb, CEE_STIND_REF);
4240 mono_mb_emit_branch (mb, CEE_LEAVE);
4242 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4244 mono_mb_set_clauses (mb, 1, clause);
4246 mono_mb_patch_branch (mb, labels [2]);
4247 mono_mb_emit_ldloc (mb, loc_res);
4248 mono_mb_emit_byte (mb, CEE_RET);
4253 mono_mb_patch_branch (mb, labels [0]);
4254 emit_thread_force_interrupt_checkpoint (mb);
4255 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4257 mono_mb_emit_ldloc (mb, 0);
4258 mono_mb_emit_byte (mb, CEE_RET);
4263 * mono_marshal_get_runtime_invoke:
4264 * Generates IL code for the runtime invoke function:
4266 * <code>MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)</code>
4268 * We also catch exceptions if \p exc is not NULL.
4269 * If \p virtual is TRUE, then \p method is invoked virtually on \p this. This is useful since
4270 * it means that the compiled code for \p method does not have to be looked up
4271 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4272 * its \p method argument.
4275 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4277 MonoMethodSignature *sig, *csig, *callsig;
4278 MonoMethodBuilder *mb;
4279 GHashTable *cache = NULL;
4280 MonoClass *target_klass;
4281 MonoMethod *res = NULL;
4282 static MonoMethodSignature *cctor_signature = NULL;
4283 static MonoMethodSignature *finalize_signature = NULL;
4285 const char *param_names [16];
4286 gboolean need_direct_wrapper = FALSE;
4291 if (!cctor_signature) {
4292 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4293 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4295 if (!finalize_signature) {
4296 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4297 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4298 finalize_signature->hasthis = 1;
4302 need_direct_wrapper = TRUE;
4305 * Use a separate cache indexed by methods to speed things up and to avoid the
4306 * boundless mempool growth caused by the signature_dup stuff below.
4309 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4311 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4313 res = mono_marshal_find_in_cache (cache, method);
4317 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4318 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4320 * Array Get/Set/Address methods. The JIT implements them using inline code
4321 * so we need to create an invoke wrapper which calls the method directly.
4323 need_direct_wrapper = TRUE;
4326 if (method->string_ctor) {
4327 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4329 callsig = add_string_ctor_signature (method);
4330 /* Can't share this as we push a string as this */
4331 need_direct_wrapper = TRUE;
4333 if (method_is_dynamic (method))
4334 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4336 callsig = mono_method_signature (method);
4339 sig = mono_method_signature (method);
4341 target_klass = get_wrapper_target_class (method->klass->image);
4343 /* Try to share wrappers for non-corlib methods with simple signatures */
4344 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4345 callsig = cctor_signature;
4346 target_klass = mono_defaults.object_class;
4347 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4348 callsig = finalize_signature;
4349 target_klass = mono_defaults.object_class;
4352 if (need_direct_wrapper) {
4353 /* Already searched at the start */
4355 MonoMethodSignature *tmp_sig;
4357 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4358 GHashTable **cache_table = NULL;
4360 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4361 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4363 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4365 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4366 (GCompareFunc)runtime_invoke_signature_equal);
4368 /* from mono_marshal_find_in_cache */
4369 mono_marshal_lock ();
4370 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4371 mono_marshal_unlock ();
4378 /* Make a copy of the signature from the image mempool */
4380 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4384 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4386 csig->ret = &mono_defaults.object_class->byval_arg;
4387 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4388 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4390 csig->params [0] = &mono_defaults.object_class->byval_arg;
4391 csig->params [1] = &mono_defaults.int_class->byval_arg;
4392 csig->params [2] = &mono_defaults.int_class->byval_arg;
4393 csig->params [3] = &mono_defaults.int_class->byval_arg;
4396 /* This is called from runtime code so it has to be cdecl */
4397 csig->call_convention = MONO_CALL_C;
4400 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4401 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4405 param_names [0] = "this";
4406 param_names [1] = "params";
4407 param_names [2] = "exc";
4408 param_names [3] = "method";
4409 mono_mb_set_param_names (mb, param_names);
4411 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4414 if (need_direct_wrapper) {
4416 mb->skip_visibility = 1;
4418 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4419 info->d.runtime_invoke.method = method;
4420 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4422 /* taken from mono_mb_create_and_cache */
4423 mono_marshal_lock ();
4424 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4425 mono_marshal_unlock ();
4427 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4428 info->d.runtime_invoke.sig = callsig;
4430 /* Somebody may have created it before us */
4433 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4435 mono_marshal_lock ();
4436 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4438 GHashTable *direct_cache;
4440 g_hash_table_insert (cache, callsig, res);
4441 /* Can't insert it into wrapper_hash since the key is a signature */
4442 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4444 g_hash_table_insert (direct_cache, method, res);
4446 mono_free_method (newm);
4448 mono_marshal_unlock ();
4451 /* end mono_mb_create_and_cache */
4460 * mono_marshal_get_runtime_invoke_dynamic:
4462 * Return a method which can be used to invoke managed methods from native code
4464 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4465 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4466 * ARGS should point to an architecture specific structure containing
4467 * the arguments and space for the return value.
4468 * The other arguments are the same as for runtime_invoke (), except that
4469 * ARGS should contain the this argument too.
4470 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4471 * is only one copy of it, which is useful in full-aot.
4474 mono_marshal_get_runtime_invoke_dynamic (void)
4476 static MonoMethod *method;
4477 MonoMethodSignature *csig;
4478 MonoExceptionClause *clause;
4479 MonoMethodBuilder *mb;
4487 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4489 csig->ret = &mono_defaults.void_class->byval_arg;
4490 csig->params [0] = &mono_defaults.int_class->byval_arg;
4491 csig->params [1] = &mono_defaults.int_class->byval_arg;
4492 csig->params [2] = &mono_defaults.int_class->byval_arg;
4493 csig->params [3] = &mono_defaults.int_class->byval_arg;
4495 name = g_strdup ("runtime_invoke_dynamic");
4496 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4500 /* allocate local 0 (object) tmp */
4501 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4502 /* allocate local 1 (object) exc */
4503 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4505 /* cond set *exc to null */
4506 mono_mb_emit_byte (mb, CEE_LDARG_1);
4507 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4508 mono_mb_emit_byte (mb, 3);
4509 mono_mb_emit_byte (mb, CEE_LDARG_1);
4510 mono_mb_emit_byte (mb, CEE_LDNULL);
4511 mono_mb_emit_byte (mb, CEE_STIND_REF);
4513 emit_thread_force_interrupt_checkpoint (mb);
4515 mono_mb_emit_byte (mb, CEE_LDARG_0);
4516 mono_mb_emit_byte (mb, CEE_LDARG_2);
4517 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4518 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4520 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4522 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4523 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4524 clause->try_len = mono_mb_get_label (mb);
4527 clause->data.filter_offset = mono_mb_get_label (mb);
4529 mono_mb_emit_byte (mb, CEE_POP);
4530 mono_mb_emit_byte (mb, CEE_LDARG_1);
4531 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4532 mono_mb_emit_byte (mb, CEE_PREFIX1);
4533 mono_mb_emit_byte (mb, CEE_CGT_UN);
4534 mono_mb_emit_byte (mb, CEE_PREFIX1);
4535 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4537 clause->handler_offset = mono_mb_get_label (mb);
4540 /* store exception */
4541 mono_mb_emit_stloc (mb, 1);
4543 mono_mb_emit_byte (mb, CEE_LDARG_1);
4544 mono_mb_emit_ldloc (mb, 1);
4545 mono_mb_emit_byte (mb, CEE_STIND_REF);
4547 mono_mb_emit_byte (mb, CEE_LDNULL);
4548 mono_mb_emit_stloc (mb, 0);
4550 mono_mb_emit_branch (mb, CEE_LEAVE);
4552 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4554 mono_mb_set_clauses (mb, 1, clause);
4557 mono_mb_patch_branch (mb, pos);
4558 //mono_mb_emit_ldloc (mb, 0);
4559 mono_mb_emit_byte (mb, CEE_RET);
4560 #endif /* DISABLE_JIT */
4562 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4564 mono_marshal_lock ();
4565 /* double-checked locking */
4567 method = mono_mb_create (mb, csig, 16, info);
4569 mono_marshal_unlock ();
4577 * mono_marshal_get_runtime_invoke_for_sig:
4579 * Return a runtime invoke wrapper for a given signature.
4582 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4584 MonoMethodSignature *csig, *callsig;
4585 MonoMethodBuilder *mb;
4587 GHashTable *cache = NULL;
4588 GHashTable **cache_table = NULL;
4589 MonoMethod *res = NULL;
4591 const char *param_names [16];
4594 /* A simplified version of mono_marshal_get_runtime_invoke */
4596 image = mono_defaults.corlib;
4598 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4600 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4602 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4603 (GCompareFunc)runtime_invoke_signature_equal);
4605 /* from mono_marshal_find_in_cache */
4606 mono_marshal_lock ();
4607 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4608 mono_marshal_unlock ();
4615 /* Make a copy of the signature from the image mempool */
4616 callsig = mono_metadata_signature_dup_full (image, callsig);
4618 csig = mono_metadata_signature_alloc (image, 4);
4619 csig->ret = &mono_defaults.object_class->byval_arg;
4620 csig->params [0] = &mono_defaults.object_class->byval_arg;
4621 csig->params [1] = &mono_defaults.int_class->byval_arg;
4622 csig->params [2] = &mono_defaults.int_class->byval_arg;
4623 csig->params [3] = &mono_defaults.int_class->byval_arg;
4626 /* This is called from runtime code so it has to be cdecl */
4627 csig->call_convention = MONO_CALL_C;
4630 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4631 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4635 param_names [0] = "this";
4636 param_names [1] = "params";
4637 param_names [2] = "exc";
4638 param_names [3] = "method";
4639 mono_mb_set_param_names (mb, param_names);
4641 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4644 /* taken from mono_mb_create_and_cache */
4645 mono_marshal_lock ();
4646 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4647 mono_marshal_unlock ();
4649 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4650 info->d.runtime_invoke.sig = callsig;
4652 /* Somebody may have created it before us */
4655 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4657 mono_marshal_lock ();
4658 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4661 g_hash_table_insert (cache, callsig, res);
4663 mono_free_method (newm);
4665 mono_marshal_unlock ();
4668 /* end mono_mb_create_and_cache */
4677 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4679 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4680 klass->name_space, klass->name);
4682 mono_mb_emit_exception_marshal_directive (mb, msg);
4687 * mono_marshal_get_icall_wrapper:
4688 * Generates IL code for the icall wrapper. The generated method
4689 * calls the unmanaged code in \p func.
4692 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4694 MonoMethodSignature *csig, *csig2;
4695 MonoMethodBuilder *mb;
4700 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4701 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4704 g_assert (sig->pinvoke);
4706 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4708 mb->method->save_lmf = 1;
4710 /* Add an explicit this argument */
4712 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4714 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4718 mono_mb_emit_byte (mb, CEE_LDARG_0);
4720 for (i = 0; i < sig->param_count; i++)
4721 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4723 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4724 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4725 mono_mb_emit_calli (mb, csig2);
4726 if (check_exceptions)
4727 emit_thread_interrupt_checkpoint (mb);
4728 mono_mb_emit_byte (mb, CEE_RET);
4731 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4733 if (csig->call_convention == MONO_CALL_VARARG)
4734 csig->call_convention = 0;
4736 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4737 info->d.icall.func = (gpointer)func;
4738 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4745 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4746 MonoMarshalSpec *spec,
4747 int conv_arg, MonoType **conv_arg_type,
4748 MarshalAction action)
4751 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4752 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4758 static MonoClass *ICustomMarshaler = NULL;
4759 static MonoMethod *cleanup_native, *cleanup_managed;
4760 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4761 MonoMethod *get_instance = NULL;
4762 MonoMethodBuilder *mb = m->mb;
4763 char *exception_msg = NULL;
4767 if (!ICustomMarshaler) {
4768 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4770 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4771 goto handle_exception;
4774 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4775 g_assert (cleanup_native);
4776 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4777 g_assert (cleanup_managed);
4778 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4779 g_assert (marshal_managed_to_native);
4780 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4781 g_assert (marshal_native_to_managed);
4783 mono_memory_barrier ();
4784 ICustomMarshaler = klass;
4787 if (spec->data.custom_data.image)
4788 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4790 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4791 g_assert (mtype != NULL);
4792 mono_error_assert_ok (&error);
4793 mklass = mono_class_from_mono_type (mtype);
4794 g_assert (mklass != NULL);
4796 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4797 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4799 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4801 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4802 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4803 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4804 (get_sig->params [0]->type != MONO_TYPE_STRING))
4805 get_instance = NULL;
4809 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);
4812 /* Throw exception and emit compensation code if neccesary */
4813 if (exception_msg) {
4815 case MARSHAL_ACTION_CONV_IN:
4816 case MARSHAL_ACTION_CONV_RESULT:
4817 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4818 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4819 mono_mb_emit_byte (mb, CEE_POP);
4821 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4824 case MARSHAL_ACTION_PUSH:
4825 mono_mb_emit_byte (mb, CEE_LDNULL);
4833 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4834 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4837 case MARSHAL_ACTION_CONV_IN:
4839 case MONO_TYPE_CLASS:
4840 case MONO_TYPE_OBJECT:
4841 case MONO_TYPE_STRING:
4842 case MONO_TYPE_ARRAY:
4843 case MONO_TYPE_SZARRAY:
4844 case MONO_TYPE_VALUETYPE:
4848 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4849 g_assert_not_reached ();
4853 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4855 mono_mb_emit_byte (mb, CEE_LDNULL);
4856 mono_mb_emit_stloc (mb, conv_arg);
4858 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4861 /* Minic MS.NET behavior */
4862 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4865 /* Check for null */
4866 mono_mb_emit_ldarg (mb, argnum);
4868 mono_mb_emit_byte (mb, CEE_LDIND_I);
4869 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4871 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4873 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4875 mono_mb_emit_ldarg (mb, argnum);
4877 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4879 if (t->type == MONO_TYPE_VALUETYPE) {
4881 * Since we can't determine the type of the argument, we
4882 * will assume the unmanaged function takes a pointer.
4884 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4886 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4889 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4890 mono_mb_emit_stloc (mb, conv_arg);
4892 mono_mb_patch_branch (mb, pos2);
4895 case MARSHAL_ACTION_CONV_OUT:
4896 /* Check for null */
4897 mono_mb_emit_ldloc (mb, conv_arg);
4898 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4901 mono_mb_emit_ldarg (mb, argnum);
4903 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4905 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4907 mono_mb_emit_ldloc (mb, conv_arg);
4908 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4909 mono_mb_emit_byte (mb, CEE_STIND_REF);
4910 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4911 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4913 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4915 mono_mb_emit_ldloc (mb, conv_arg);
4916 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4918 /* We have nowhere to store the result */
4919 mono_mb_emit_byte (mb, CEE_POP);
4922 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4924 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4926 mono_mb_emit_ldloc (mb, conv_arg);
4928 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4930 mono_mb_patch_branch (mb, pos2);
4933 case MARSHAL_ACTION_PUSH:
4935 mono_mb_emit_ldloc_addr (mb, conv_arg);
4937 mono_mb_emit_ldloc (mb, conv_arg);
4940 case MARSHAL_ACTION_CONV_RESULT:
4941 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4943 mono_mb_emit_stloc (mb, 3);
4945 mono_mb_emit_ldloc (mb, 3);
4946 mono_mb_emit_stloc (mb, loc1);
4948 /* Check for null */
4949 mono_mb_emit_ldloc (mb, 3);
4950 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4952 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4954 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4955 mono_mb_emit_byte (mb, CEE_DUP);
4957 mono_mb_emit_ldloc (mb, 3);
4958 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4959 mono_mb_emit_stloc (mb, 3);
4961 mono_mb_emit_ldloc (mb, loc1);
4962 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4964 mono_mb_patch_branch (mb, pos2);
4967 case MARSHAL_ACTION_MANAGED_CONV_IN:
4968 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4970 mono_mb_emit_byte (mb, CEE_LDNULL);
4971 mono_mb_emit_stloc (mb, conv_arg);
4973 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4976 /* Check for null */
4977 mono_mb_emit_ldarg (mb, argnum);
4979 mono_mb_emit_byte (mb, CEE_LDIND_I);
4980 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4982 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4983 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4985 mono_mb_emit_ldarg (mb, argnum);
4987 mono_mb_emit_byte (mb, CEE_LDIND_I);
4989 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4990 mono_mb_emit_stloc (mb, conv_arg);
4992 mono_mb_patch_branch (mb, pos2);
4995 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4996 g_assert (!t->byref);
4998 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5000 mono_mb_emit_stloc (mb, 3);
5002 mono_mb_emit_ldloc (mb, 3);
5003 mono_mb_emit_stloc (mb, loc1);
5005 /* Check for null */
5006 mono_mb_emit_ldloc (mb, 3);
5007 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5009 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5010 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5011 mono_mb_emit_byte (mb, CEE_DUP);
5013 mono_mb_emit_ldloc (mb, 3);
5014 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5015 mono_mb_emit_stloc (mb, 3);
5017 mono_mb_emit_ldloc (mb, loc1);
5018 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5020 mono_mb_patch_branch (mb, pos2);
5023 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5025 /* Check for null */
5026 mono_mb_emit_ldloc (mb, conv_arg);
5027 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5030 mono_mb_emit_ldarg (mb, argnum);
5032 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5034 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5036 mono_mb_emit_ldloc (mb, conv_arg);
5037 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5038 mono_mb_emit_byte (mb, CEE_STIND_I);
5041 /* Call CleanUpManagedData */
5042 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5044 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5046 mono_mb_emit_ldloc (mb, conv_arg);
5047 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5049 mono_mb_patch_branch (mb, pos2);
5053 g_assert_not_reached ();
5061 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5062 MonoMarshalSpec *spec,
5063 int conv_arg, MonoType **conv_arg_type,
5064 MarshalAction action)
5067 MonoMethodBuilder *mb = m->mb;
5070 case MARSHAL_ACTION_CONV_IN: {
5071 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5073 g_assert (t->type == MONO_TYPE_OBJECT);
5074 g_assert (!t->byref);
5076 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5077 mono_mb_emit_ldarg (mb, argnum);
5078 mono_mb_emit_icon (mb, encoding);
5079 mono_mb_emit_icon (mb, t->attrs);
5080 mono_mb_emit_icall (mb, mono_marshal_asany);
5081 mono_mb_emit_stloc (mb, conv_arg);
5085 case MARSHAL_ACTION_PUSH:
5086 mono_mb_emit_ldloc (mb, conv_arg);
5089 case MARSHAL_ACTION_CONV_OUT: {
5090 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5092 mono_mb_emit_ldarg (mb, argnum);
5093 mono_mb_emit_ldloc (mb, conv_arg);
5094 mono_mb_emit_icon (mb, encoding);
5095 mono_mb_emit_icon (mb, t->attrs);
5096 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5101 g_assert_not_reached ();
5108 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5109 MonoMarshalSpec *spec,
5110 int conv_arg, MonoType **conv_arg_type,
5111 MarshalAction action)
5114 MonoMethodBuilder *mb = m->mb;
5115 MonoClass *klass, *date_time_class;
5118 klass = mono_class_from_mono_type (t);
5120 date_time_class = mono_class_get_date_time_class ();
5123 case MARSHAL_ACTION_CONV_IN:
5124 if (klass == date_time_class) {
5125 /* Convert it to an OLE DATE type */
5126 static MonoMethod *to_oadate;
5129 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5130 g_assert (to_oadate);
5132 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5135 mono_mb_emit_ldarg (mb, argnum);
5136 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5139 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5141 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5143 mono_mb_emit_ldarg_addr (mb, argnum);
5144 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5145 mono_mb_emit_stloc (mb, conv_arg);
5149 mono_mb_patch_branch (mb, pos);
5153 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5156 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5158 /* store the address of the source into local variable 0 */
5160 mono_mb_emit_ldarg (mb, argnum);
5162 mono_mb_emit_ldarg_addr (mb, argnum);
5164 mono_mb_emit_stloc (mb, 0);
5166 /* allocate space for the native struct and
5167 * store the address into local variable 1 (dest) */
5168 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5169 mono_mb_emit_byte (mb, CEE_PREFIX1);
5170 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5171 mono_mb_emit_stloc (mb, conv_arg);
5174 mono_mb_emit_ldloc (mb, 0);
5175 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5178 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5180 mono_mb_emit_ldloc (mb, conv_arg);
5181 mono_mb_emit_stloc (mb, 1);
5183 /* emit valuetype conversion code */
5184 emit_struct_conv (mb, klass, FALSE);
5188 mono_mb_patch_branch (mb, pos);
5191 case MARSHAL_ACTION_PUSH:
5192 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5194 g_assert (!t->byref);
5196 /* Have to change the signature since the vtype is passed byref */
5197 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5199 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5200 mono_mb_emit_ldarg_addr (mb, argnum);
5202 mono_mb_emit_ldloc (mb, conv_arg);
5206 if (klass == date_time_class) {
5208 mono_mb_emit_ldloc_addr (mb, conv_arg);
5210 mono_mb_emit_ldloc (mb, conv_arg);
5214 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5215 mono_mb_emit_ldarg (mb, argnum);
5218 mono_mb_emit_ldloc (mb, conv_arg);
5220 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5221 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5225 case MARSHAL_ACTION_CONV_OUT:
5226 if (klass == date_time_class) {
5227 /* Convert from an OLE DATE type */
5228 static MonoMethod *from_oadate;
5233 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5235 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5236 g_assert (from_oadate);
5238 mono_mb_emit_ldarg (mb, argnum);
5239 mono_mb_emit_ldloc (mb, conv_arg);
5240 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5241 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5246 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5250 /* dst = argument */
5251 mono_mb_emit_ldarg (mb, argnum);
5252 mono_mb_emit_stloc (mb, 1);
5254 mono_mb_emit_ldloc (mb, 1);
5255 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5257 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5258 /* src = tmp_locals [i] */
5259 mono_mb_emit_ldloc (mb, conv_arg);
5260 mono_mb_emit_stloc (mb, 0);
5262 /* emit valuetype conversion code */
5263 emit_struct_conv (mb, klass, TRUE);
5267 emit_struct_free (mb, klass, conv_arg);
5270 mono_mb_patch_branch (mb, pos);
5273 case MARSHAL_ACTION_CONV_RESULT:
5274 if (mono_class_is_explicit_layout (klass) || klass->blittable) {
5275 mono_mb_emit_stloc (mb, 3);
5279 /* load pointer to returned value type */
5280 g_assert (m->vtaddr_var);
5281 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5282 /* store the address of the source into local variable 0 */
5283 mono_mb_emit_stloc (mb, 0);
5285 mono_mb_emit_ldloc_addr (mb, 3);
5286 mono_mb_emit_stloc (mb, 1);
5288 /* emit valuetype conversion code */
5289 emit_struct_conv (mb, klass, TRUE);
5292 case MARSHAL_ACTION_MANAGED_CONV_IN:
5293 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5298 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5300 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5304 mono_mb_emit_ldarg (mb, argnum);
5306 mono_mb_emit_ldarg_addr (mb, argnum);
5307 mono_mb_emit_stloc (mb, 0);
5310 mono_mb_emit_ldloc (mb, 0);
5311 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5314 mono_mb_emit_ldloc_addr (mb, conv_arg);
5315 mono_mb_emit_stloc (mb, 1);
5317 /* emit valuetype conversion code */
5318 emit_struct_conv (mb, klass, TRUE);
5321 mono_mb_patch_branch (mb, pos);
5324 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5325 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5327 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5330 /* Check for null */
5331 mono_mb_emit_ldarg (mb, argnum);
5332 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5335 mono_mb_emit_ldloc_addr (mb, conv_arg);
5336 mono_mb_emit_stloc (mb, 0);
5339 mono_mb_emit_ldarg (mb, argnum);
5340 mono_mb_emit_stloc (mb, 1);
5342 /* emit valuetype conversion code */
5343 emit_struct_conv (mb, klass, FALSE);
5345 mono_mb_patch_branch (mb, pos2);
5348 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5349 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5350 mono_mb_emit_stloc (mb, 3);
5355 /* load pointer to returned value type */
5356 g_assert (m->vtaddr_var);
5357 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5359 /* store the address of the source into local variable 0 */
5360 mono_mb_emit_stloc (mb, 0);
5361 /* allocate space for the native struct and
5362 * store the address into dst_ptr */
5363 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5364 m->retobj_class = klass;
5365 g_assert (m->retobj_var);
5366 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5367 mono_mb_emit_byte (mb, CEE_CONV_I);
5368 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5369 mono_mb_emit_stloc (mb, 1);
5370 mono_mb_emit_ldloc (mb, 1);
5371 mono_mb_emit_stloc (mb, m->retobj_var);
5373 /* emit valuetype conversion code */
5374 emit_struct_conv (mb, klass, FALSE);
5378 g_assert_not_reached ();
5385 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5386 MonoMarshalSpec *spec,
5387 int conv_arg, MonoType **conv_arg_type,
5388 MarshalAction action)
5392 case MARSHAL_ACTION_CONV_IN:
5393 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5395 case MARSHAL_ACTION_MANAGED_CONV_IN:
5396 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5400 MonoMethodBuilder *mb = m->mb;
5401 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5402 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5406 case MARSHAL_ACTION_CONV_IN:
5407 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5408 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5411 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5414 mono_mb_emit_ldarg (mb, argnum);
5415 mono_mb_emit_byte (mb, CEE_LDIND_I);
5417 mono_mb_emit_ldarg (mb, argnum);
5420 if (conv == MONO_MARSHAL_CONV_INVALID) {
5421 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5422 mono_mb_emit_exception_marshal_directive (mb, msg);
5424 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5426 mono_mb_emit_stloc (mb, conv_arg);
5430 case MARSHAL_ACTION_CONV_OUT:
5431 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5432 if (conv == MONO_MARSHAL_CONV_INVALID) {
5433 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5434 mono_mb_emit_exception_marshal_directive (mb, msg);
5438 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5439 static MonoMethod *m;
5442 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5447 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5448 mono_mb_emit_exception_marshal_directive (mb, msg);
5453 * Have to allocate a new string with the same length as the original, and
5454 * copy the contents of the buffer pointed to by CONV_ARG into it.
5456 g_assert (t->byref);
5457 mono_mb_emit_ldarg (mb, argnum);
5458 mono_mb_emit_ldloc (mb, conv_arg);
5459 mono_mb_emit_ldarg (mb, argnum);
5460 mono_mb_emit_byte (mb, CEE_LDIND_I);
5461 mono_mb_emit_managed_call (mb, m, NULL);
5462 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5463 mono_mb_emit_byte (mb, CEE_STIND_REF);
5464 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5466 mono_mb_emit_ldarg (mb, argnum);
5467 mono_mb_emit_ldloc (mb, conv_arg);
5468 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5469 mono_mb_emit_byte (mb, stind_op);
5474 mono_mb_emit_ldloc (mb, conv_arg);
5475 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5476 mono_mb_emit_icall (mb, mono_free_bstr);
5478 mono_mb_emit_icall (mb, mono_marshal_free);
5482 case MARSHAL_ACTION_PUSH:
5483 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5484 mono_mb_emit_ldloc_addr (mb, conv_arg);
5486 mono_mb_emit_ldloc (mb, conv_arg);
5489 case MARSHAL_ACTION_CONV_RESULT:
5490 mono_mb_emit_stloc (mb, 0);
5492 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5493 if (conv == MONO_MARSHAL_CONV_INVALID) {
5494 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5495 mono_mb_emit_exception_marshal_directive (mb, msg);
5499 mono_mb_emit_ldloc (mb, 0);
5500 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5501 mono_mb_emit_stloc (mb, 3);
5503 /* free the string */
5504 mono_mb_emit_ldloc (mb, 0);
5505 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5506 mono_mb_emit_icall (mb, mono_free_bstr);
5508 mono_mb_emit_icall (mb, mono_marshal_free);
5511 case MARSHAL_ACTION_MANAGED_CONV_IN:
5512 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5514 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5517 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5521 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5522 if (conv == MONO_MARSHAL_CONV_INVALID) {
5523 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5524 mono_mb_emit_exception_marshal_directive (mb, msg);
5528 mono_mb_emit_ldarg (mb, argnum);
5530 mono_mb_emit_byte (mb, CEE_LDIND_I);
5531 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5532 mono_mb_emit_stloc (mb, conv_arg);
5535 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5539 mono_mb_emit_ldarg (mb, argnum);
5540 mono_mb_emit_ldloc (mb, conv_arg);
5541 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5542 mono_mb_emit_byte (mb, stind_op);
5547 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5548 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5549 /* We need to make a copy so the caller is able to free it */
5550 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5552 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5553 mono_mb_emit_stloc (mb, 3);
5557 g_assert_not_reached ();
5565 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5566 MonoMarshalSpec *spec, int conv_arg,
5567 MonoType **conv_arg_type, MarshalAction action)
5570 if (action == MARSHAL_ACTION_CONV_IN)
5571 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5573 MonoMethodBuilder *mb = m->mb;
5576 case MARSHAL_ACTION_CONV_IN: {
5577 MonoType *intptr_type;
5578 int dar_release_slot, pos;
5580 intptr_type = &mono_defaults.int_class->byval_arg;
5581 conv_arg = mono_mb_add_local (mb, intptr_type);
5582 *conv_arg_type = intptr_type;
5584 if (!sh_dangerous_add_ref)
5585 init_safe_handle ();
5587 mono_mb_emit_ldarg (mb, argnum);
5588 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5589 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5591 mono_mb_patch_branch (mb, pos);
5594 * My tests in show that ref SafeHandles are not really
5595 * passed as ref objects. Instead a NULL is passed as the
5598 mono_mb_emit_icon (mb, 0);
5599 mono_mb_emit_stloc (mb, conv_arg);
5603 /* Create local to hold the ref parameter to DangerousAddRef */
5604 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5606 /* set release = false; */
5607 mono_mb_emit_icon (mb, 0);
5608 mono_mb_emit_stloc (mb, dar_release_slot);
5610 /* safehandle.DangerousAddRef (ref release) */
5611 mono_mb_emit_ldarg (mb, argnum);
5612 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5613 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5615 /* Pull the handle field from SafeHandle */
5616 mono_mb_emit_ldarg (mb, argnum);
5617 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5618 mono_mb_emit_byte (mb, CEE_LDIND_I);
5619 mono_mb_emit_stloc (mb, conv_arg);
5624 case MARSHAL_ACTION_PUSH:
5626 mono_mb_emit_ldloc_addr (mb, conv_arg);
5628 mono_mb_emit_ldloc (mb, conv_arg);
5631 case MARSHAL_ACTION_CONV_OUT: {
5632 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5633 int dar_release_slot = conv_arg + 1;
5636 if (!sh_dangerous_release)
5637 init_safe_handle ();
5643 * My tests indicate that ref SafeHandles parameters are not actually
5644 * passed by ref, but instead a new Handle is created regardless of
5645 * whether a change happens in the unmanaged side.
5647 * Also, the Handle is created before calling into unmanaged code,
5648 * but we do not support that mechanism (getting to the original
5649 * handle) and it makes no difference where we create this
5651 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5653 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5656 /* refval = new SafeHandleDerived ()*/
5657 mono_mb_emit_ldarg (mb, argnum);
5658 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5659 mono_mb_emit_byte (mb, CEE_STIND_REF);
5661 /* refval.handle = returned_handle */
5662 mono_mb_emit_ldarg (mb, argnum);
5663 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5664 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5665 mono_mb_emit_ldloc (mb, conv_arg);
5666 mono_mb_emit_byte (mb, CEE_STIND_I);
5668 mono_mb_emit_ldloc (mb, dar_release_slot);
5669 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5670 mono_mb_emit_ldarg (mb, argnum);
5671 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5672 mono_mb_patch_branch (mb, label_next);
5677 case MARSHAL_ACTION_CONV_RESULT: {
5678 MonoMethod *ctor = NULL;
5679 int intptr_handle_slot;
5681 if (mono_class_is_abstract (t->data.klass)) {
5682 mono_mb_emit_byte (mb, CEE_POP);
5683 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5687 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5689 mono_mb_emit_byte (mb, CEE_POP);
5690 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5693 /* Store the IntPtr results into a local */
5694 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5695 mono_mb_emit_stloc (mb, intptr_handle_slot);
5697 /* Create return value */
5698 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5699 mono_mb_emit_stloc (mb, 3);
5701 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5702 mono_mb_emit_ldloc (mb, 3);
5703 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5704 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5705 mono_mb_emit_byte (mb, CEE_STIND_I);
5709 case MARSHAL_ACTION_MANAGED_CONV_IN:
5710 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5713 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5714 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5717 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5718 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5721 printf ("Unhandled case for MarshalAction: %d\n", action);
5729 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5730 MonoMarshalSpec *spec, int conv_arg,
5731 MonoType **conv_arg_type, MarshalAction action)
5734 if (action == MARSHAL_ACTION_CONV_IN)
5735 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5737 MonoMethodBuilder *mb = m->mb;
5740 case MARSHAL_ACTION_CONV_IN: {
5741 MonoType *intptr_type;
5743 intptr_type = &mono_defaults.int_class->byval_arg;
5744 conv_arg = mono_mb_add_local (mb, intptr_type);
5745 *conv_arg_type = intptr_type;
5748 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5749 mono_mb_emit_exception_marshal_directive (mb, msg);
5752 mono_mb_emit_ldarg_addr (mb, argnum);
5753 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5754 mono_mb_emit_byte (mb, CEE_ADD);
5755 mono_mb_emit_byte (mb, CEE_LDIND_I);
5756 mono_mb_emit_stloc (mb, conv_arg);
5760 case MARSHAL_ACTION_PUSH:
5761 mono_mb_emit_ldloc (mb, conv_arg);
5764 case MARSHAL_ACTION_CONV_OUT: {
5765 /* no resource release required */
5769 case MARSHAL_ACTION_CONV_RESULT: {
5770 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5771 mono_mb_emit_exception_marshal_directive (mb, msg);
5775 case MARSHAL_ACTION_MANAGED_CONV_IN:
5776 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5779 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5780 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5783 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5784 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5787 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5795 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5796 MonoMarshalSpec *spec,
5797 int conv_arg, MonoType **conv_arg_type,
5798 MarshalAction action)
5801 if (action == MARSHAL_ACTION_CONV_IN)
5802 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5804 MonoMethodBuilder *mb = m->mb;
5805 MonoClass *klass = mono_class_from_mono_type (t);
5809 case MARSHAL_ACTION_CONV_IN:
5810 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5811 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5813 m->orig_conv_args [argnum] = 0;
5815 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5816 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5817 mono_mb_emit_exception_marshal_directive (mb, msg);
5821 if (klass->delegate) {
5823 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5824 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5825 mono_mb_emit_exception_marshal_directive (mb, msg);
5827 mono_mb_emit_byte (mb, CEE_LDNULL);
5828 mono_mb_emit_stloc (mb, conv_arg);
5830 mono_mb_emit_ldarg (mb, argnum);
5831 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5832 mono_mb_emit_stloc (mb, conv_arg);
5834 } else if (klass == mono_defaults.stringbuilder_class) {
5835 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5836 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5840 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5841 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5842 mono_mb_emit_exception_marshal_directive (mb, msg);
5848 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5851 if (conv == MONO_MARSHAL_CONV_INVALID) {
5852 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5853 mono_mb_emit_exception_marshal_directive (mb, msg);
5857 mono_mb_emit_ldarg (mb, argnum);
5859 mono_mb_emit_byte (mb, CEE_LDIND_I);
5861 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5862 mono_mb_emit_stloc (mb, conv_arg);
5863 } else if (klass->blittable) {
5864 mono_mb_emit_byte (mb, CEE_LDNULL);
5865 mono_mb_emit_stloc (mb, conv_arg);
5867 mono_mb_emit_ldarg (mb, argnum);
5868 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5870 mono_mb_emit_ldarg (mb, argnum);
5871 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5872 mono_mb_emit_stloc (mb, conv_arg);
5874 mono_mb_patch_branch (mb, pos);
5877 mono_mb_emit_byte (mb, CEE_LDNULL);
5878 mono_mb_emit_stloc (mb, conv_arg);
5881 /* we dont need any conversions for out parameters */
5882 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5885 mono_mb_emit_ldarg (mb, argnum);
5886 mono_mb_emit_byte (mb, CEE_LDIND_I);
5889 mono_mb_emit_ldarg (mb, argnum);
5890 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5891 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5894 /* store the address of the source into local variable 0 */
5895 mono_mb_emit_stloc (mb, 0);
5896 mono_mb_emit_ldloc (mb, 0);
5897 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5899 /* allocate space for the native struct and store the address */
5900 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5901 mono_mb_emit_byte (mb, CEE_PREFIX1);
5902 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5903 mono_mb_emit_stloc (mb, conv_arg);
5906 /* Need to store the original buffer so we can free it later */
5907 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5908 mono_mb_emit_ldloc (mb, conv_arg);
5909 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5912 /* set the src_ptr */
5913 mono_mb_emit_ldloc (mb, 0);
5914 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5915 mono_mb_emit_stloc (mb, 0);
5918 mono_mb_emit_ldloc (mb, conv_arg);
5919 mono_mb_emit_stloc (mb, 1);
5921 /* emit valuetype conversion code */
5922 emit_struct_conv (mb, klass, FALSE);
5924 mono_mb_patch_branch (mb, pos);
5928 case MARSHAL_ACTION_CONV_OUT:
5929 if (klass == mono_defaults.stringbuilder_class) {
5931 MonoMarshalNative encoding;
5932 MonoMarshalConv conv;
5934 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5935 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5937 g_assert (encoding != -1);
5940 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5944 mono_mb_emit_ldarg (mb, argnum);
5945 mono_mb_emit_ldloc (mb, conv_arg);
5948 case MONO_NATIVE_LPWSTR:
5949 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5951 case MONO_NATIVE_LPSTR:
5952 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5954 case MONO_NATIVE_UTF8STR:
5955 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5958 g_assert_not_reached ();
5961 mono_mb_emit_byte (mb, CEE_STIND_REF);
5963 mono_mb_emit_ldarg (mb, argnum);
5964 mono_mb_emit_ldloc (mb, conv_arg);
5966 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5970 mono_mb_emit_ldloc (mb, conv_arg);
5971 mono_mb_emit_icall (mb, mono_marshal_free);
5976 if (klass->delegate) {
5978 mono_mb_emit_ldarg (mb, argnum);
5979 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5980 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5981 mono_mb_emit_ldloc (mb, conv_arg);
5982 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5983 mono_mb_emit_byte (mb, CEE_STIND_REF);
5988 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5989 /* allocate a new object */
5990 mono_mb_emit_ldarg (mb, argnum);
5991 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5992 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5993 mono_mb_emit_byte (mb, CEE_STIND_REF);
5996 /* dst = *argument */
5997 mono_mb_emit_ldarg (mb, argnum);
6000 mono_mb_emit_byte (mb, CEE_LDIND_I);
6002 mono_mb_emit_stloc (mb, 1);
6004 mono_mb_emit_ldloc (mb, 1);
6005 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6007 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6008 mono_mb_emit_ldloc (mb, 1);
6009 mono_mb_emit_icon (mb, sizeof (MonoObject));
6010 mono_mb_emit_byte (mb, CEE_ADD);
6011 mono_mb_emit_stloc (mb, 1);
6013 /* src = tmp_locals [i] */
6014 mono_mb_emit_ldloc (mb, conv_arg);
6015 mono_mb_emit_stloc (mb, 0);
6017 /* emit valuetype conversion code */
6018 emit_struct_conv (mb, klass, TRUE);
6020 /* Free the structure returned by the native code */
6021 emit_struct_free (mb, klass, conv_arg);
6023 if (m->orig_conv_args [argnum]) {
6025 * If the native function changed the pointer, then free
6026 * the original structure plus the new pointer.
6028 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6029 mono_mb_emit_ldloc (mb, conv_arg);
6030 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6032 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6033 g_assert (m->orig_conv_args [argnum]);
6035 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6038 mono_mb_emit_ldloc (mb, conv_arg);
6039 mono_mb_emit_icall (mb, mono_marshal_free);
6041 mono_mb_patch_branch (mb, pos2);
6045 /* Free the original structure passed to native code */
6046 emit_struct_free (mb, klass, conv_arg);
6048 mono_mb_patch_branch (mb, pos);
6051 case MARSHAL_ACTION_PUSH:
6053 mono_mb_emit_ldloc_addr (mb, conv_arg);
6055 mono_mb_emit_ldloc (mb, conv_arg);
6058 case MARSHAL_ACTION_CONV_RESULT:
6059 if (klass->delegate) {
6060 g_assert (!t->byref);
6061 mono_mb_emit_stloc (mb, 0);
6062 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6063 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6064 mono_mb_emit_ldloc (mb, 0);
6065 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6066 mono_mb_emit_stloc (mb, 3);
6067 } else if (klass == mono_defaults.stringbuilder_class) {
6069 char *msg = g_strdup_printf ("Return marshalling of stringbuilders is not implemented.");
6070 mono_mb_emit_exception_marshal_directive (mb, msg);
6073 mono_mb_emit_stloc (mb, 0);
6075 /* Make a copy since emit_conv modifies local 0 */
6076 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6077 mono_mb_emit_ldloc (mb, 0);
6078 mono_mb_emit_stloc (mb, loc);
6080 mono_mb_emit_byte (mb, CEE_LDNULL);
6081 mono_mb_emit_stloc (mb, 3);
6083 mono_mb_emit_ldloc (mb, 0);
6084 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6086 /* allocate result object */
6088 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6089 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6090 mono_mb_emit_stloc (mb, 3);
6094 mono_mb_emit_ldloc (mb, 3);
6095 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6096 mono_mb_emit_stloc (mb, 1);
6098 /* emit conversion code */
6099 emit_struct_conv (mb, klass, TRUE);
6101 emit_struct_free (mb, klass, loc);
6103 /* Free the pointer allocated by unmanaged code */
6104 mono_mb_emit_ldloc (mb, loc);
6105 mono_mb_emit_icall (mb, mono_marshal_free);
6106 mono_mb_patch_branch (mb, pos);
6110 case MARSHAL_ACTION_MANAGED_CONV_IN:
6111 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6113 if (klass->delegate) {
6114 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6115 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6116 mono_mb_emit_ldarg (mb, argnum);
6118 mono_mb_emit_byte (mb, CEE_LDIND_I);
6119 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6120 mono_mb_emit_stloc (mb, conv_arg);
6124 if (klass == mono_defaults.stringbuilder_class) {
6125 MonoMarshalNative encoding;
6127 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6130 g_assert (encoding == MONO_NATIVE_LPSTR || encoding == MONO_NATIVE_UTF8STR);
6132 g_assert (!t->byref);
6133 g_assert (encoding != -1);
6135 mono_mb_emit_ldarg (mb, argnum);
6136 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6137 mono_mb_emit_stloc (mb, conv_arg);
6141 /* The class can not have an automatic layout */
6142 if (mono_class_is_auto_layout (klass)) {
6143 mono_mb_emit_auto_layout_exception (mb, klass);
6147 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6148 mono_mb_emit_byte (mb, CEE_LDNULL);
6149 mono_mb_emit_stloc (mb, conv_arg);
6154 mono_mb_emit_ldarg (mb, argnum);
6158 /* Check for NULL and raise an exception */
6159 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6161 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6163 mono_mb_patch_branch (mb, pos2);
6164 mono_mb_emit_ldarg (mb, argnum);
6165 mono_mb_emit_byte (mb, CEE_LDIND_I);
6168 mono_mb_emit_stloc (mb, 0);
6170 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6171 mono_mb_emit_stloc (mb, conv_arg);
6173 mono_mb_emit_ldloc (mb, 0);
6174 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6176 /* Create and set dst */
6177 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6178 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6179 mono_mb_emit_stloc (mb, conv_arg);
6180 mono_mb_emit_ldloc (mb, conv_arg);
6181 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6182 mono_mb_emit_stloc (mb, 1);
6184 /* emit valuetype conversion code */
6185 emit_struct_conv (mb, klass, TRUE);
6187 mono_mb_patch_branch (mb, pos);
6190 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6191 if (klass->delegate) {
6194 mono_mb_emit_ldarg (mb, argnum);
6195 mono_mb_emit_ldloc (mb, conv_arg);
6196 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
6197 mono_mb_emit_byte (mb, stind_op);
6203 /* Check for null */
6204 mono_mb_emit_ldloc (mb, conv_arg);
6205 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6206 mono_mb_emit_ldarg (mb, argnum);
6207 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6208 mono_mb_emit_byte (mb, CEE_STIND_REF);
6209 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6211 mono_mb_patch_branch (mb, pos);
6214 mono_mb_emit_ldloc (mb, conv_arg);
6215 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6216 mono_mb_emit_stloc (mb, 0);
6218 /* Allocate and set dest */
6219 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6220 mono_mb_emit_byte (mb, CEE_CONV_I);
6221 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6222 mono_mb_emit_stloc (mb, 1);
6224 /* Update argument pointer */
6225 mono_mb_emit_ldarg (mb, argnum);
6226 mono_mb_emit_ldloc (mb, 1);
6227 mono_mb_emit_byte (mb, CEE_STIND_I);
6229 /* emit valuetype conversion code */
6230 emit_struct_conv (mb, klass, FALSE);
6232 mono_mb_patch_branch (mb, pos2);
6233 } else if (klass == mono_defaults.stringbuilder_class) {
6234 // FIXME: What to do here ?
6236 /* byval [Out] marshalling */
6238 /* FIXME: Handle null */
6241 mono_mb_emit_ldloc (mb, conv_arg);
6242 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6243 mono_mb_emit_stloc (mb, 0);
6246 mono_mb_emit_ldarg (mb, argnum);
6247 mono_mb_emit_stloc (mb, 1);
6249 /* emit valuetype conversion code */
6250 emit_struct_conv (mb, klass, FALSE);
6254 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6255 if (klass->delegate) {
6256 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6257 mono_mb_emit_stloc (mb, 3);
6261 /* The class can not have an automatic layout */
6262 if (mono_class_is_auto_layout (klass)) {
6263 mono_mb_emit_auto_layout_exception (mb, klass);
6267 mono_mb_emit_stloc (mb, 0);
6268 /* Check for null */
6269 mono_mb_emit_ldloc (mb, 0);
6270 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6271 mono_mb_emit_byte (mb, CEE_LDNULL);
6272 mono_mb_emit_stloc (mb, 3);
6273 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6275 mono_mb_patch_branch (mb, pos);
6278 mono_mb_emit_ldloc (mb, 0);
6279 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6280 mono_mb_emit_stloc (mb, 0);
6282 /* Allocate and set dest */
6283 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6284 mono_mb_emit_byte (mb, CEE_CONV_I);
6285 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6286 mono_mb_emit_byte (mb, CEE_DUP);
6287 mono_mb_emit_stloc (mb, 1);
6288 mono_mb_emit_stloc (mb, 3);
6290 emit_struct_conv (mb, klass, FALSE);
6292 mono_mb_patch_branch (mb, pos2);
6296 g_assert_not_reached ();
6307 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6308 MonoMarshalSpec *spec,
6309 int conv_arg, MonoType **conv_arg_type,
6310 MarshalAction action)
6312 MonoMethodBuilder *mb = m->mb;
6313 static MonoMethod *get_object_for_native_variant = NULL;
6314 static MonoMethod *get_native_variant_for_object = NULL;
6316 if (!get_object_for_native_variant)
6317 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6318 g_assert (get_object_for_native_variant);
6320 if (!get_native_variant_for_object)
6321 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6322 g_assert (get_native_variant_for_object);
6325 case MARSHAL_ACTION_CONV_IN: {
6326 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6329 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6331 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6333 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6336 mono_mb_emit_ldarg (mb, argnum);
6338 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6339 mono_mb_emit_ldloc_addr (mb, conv_arg);
6340 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6344 case MARSHAL_ACTION_CONV_OUT: {
6345 static MonoMethod *variant_clear = NULL;
6348 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6349 g_assert (variant_clear);
6352 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6353 mono_mb_emit_ldarg (mb, argnum);
6354 mono_mb_emit_ldloc_addr (mb, conv_arg);
6355 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6356 mono_mb_emit_byte (mb, CEE_STIND_REF);
6359 mono_mb_emit_ldloc_addr (mb, conv_arg);
6360 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6364 case MARSHAL_ACTION_PUSH:
6366 mono_mb_emit_ldloc_addr (mb, conv_arg);
6368 mono_mb_emit_ldloc (mb, conv_arg);
6371 case MARSHAL_ACTION_CONV_RESULT: {
6372 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6373 mono_mb_emit_exception_marshal_directive (mb, msg);
6377 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6378 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6381 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6383 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6385 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6389 mono_mb_emit_ldarg (mb, argnum);
6391 mono_mb_emit_ldarg_addr (mb, argnum);
6392 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6393 mono_mb_emit_stloc (mb, conv_arg);
6397 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6398 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6399 mono_mb_emit_ldloc (mb, conv_arg);
6400 mono_mb_emit_ldarg (mb, argnum);
6401 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6406 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6407 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6408 mono_mb_emit_exception_marshal_directive (mb, msg);
6413 g_assert_not_reached ();
6419 #endif /* DISABLE_COM */
6420 #endif /* DISABLE_JIT */
6423 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6425 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6426 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6428 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6430 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6442 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6443 MonoMarshalSpec *spec,
6444 int conv_arg, MonoType **conv_arg_type,
6445 MarshalAction action)
6449 case MARSHAL_ACTION_CONV_IN:
6450 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6452 case MARSHAL_ACTION_MANAGED_CONV_IN:
6453 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6457 MonoMethodBuilder *mb = m->mb;
6458 MonoClass *klass = mono_class_from_mono_type (t);
6459 gboolean need_convert, need_free;
6460 MonoMarshalNative encoding;
6462 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6465 case MARSHAL_ACTION_CONV_IN:
6466 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6467 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6469 if (klass->element_class->blittable) {
6470 mono_mb_emit_ldarg (mb, argnum);
6472 mono_mb_emit_byte (mb, CEE_LDIND_I);
6473 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6474 mono_mb_emit_stloc (mb, conv_arg);
6477 guint32 label1, label2, label3;
6478 int index_var, src_var, dest_ptr, esize;
6479 MonoMarshalConv conv;
6480 gboolean is_string = FALSE;
6482 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6484 eklass = klass->element_class;
6486 if (eklass == mono_defaults.string_class) {
6488 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6490 else if (eklass == mono_defaults.stringbuilder_class) {
6492 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6495 conv = MONO_MARSHAL_CONV_INVALID;
6497 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6498 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6499 mono_mb_emit_exception_marshal_directive (mb, msg);
6503 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6504 mono_mb_emit_ldarg (mb, argnum);
6506 mono_mb_emit_byte (mb, CEE_LDIND_I);
6507 mono_mb_emit_stloc (mb, src_var);
6510 mono_mb_emit_ldloc (mb, src_var);
6511 mono_mb_emit_stloc (mb, conv_arg);
6512 mono_mb_emit_ldloc (mb, src_var);
6513 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6516 esize = sizeof (gpointer);
6517 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6518 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6520 esize = mono_class_native_size (eklass, NULL);
6522 /* allocate space for the native struct and store the address */
6523 mono_mb_emit_icon (mb, esize);
6524 mono_mb_emit_ldloc (mb, src_var);
6525 mono_mb_emit_byte (mb, CEE_LDLEN);
6527 if (eklass == mono_defaults.string_class) {
6528 /* Make the array bigger for the terminating null */
6529 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6530 mono_mb_emit_byte (mb, CEE_ADD);
6532 mono_mb_emit_byte (mb, CEE_MUL);
6533 mono_mb_emit_byte (mb, CEE_PREFIX1);
6534 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6535 mono_mb_emit_stloc (mb, conv_arg);
6537 mono_mb_emit_ldloc (mb, conv_arg);
6538 mono_mb_emit_stloc (mb, dest_ptr);
6540 /* Emit marshalling loop */
6541 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6542 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6543 mono_mb_emit_stloc (mb, index_var);
6544 label2 = mono_mb_get_label (mb);
6545 mono_mb_emit_ldloc (mb, index_var);
6546 mono_mb_emit_ldloc (mb, src_var);
6547 mono_mb_emit_byte (mb, CEE_LDLEN);
6548 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6550 /* Emit marshalling code */
6554 mono_mb_emit_ldloc (mb, dest_ptr);
6555 mono_mb_emit_ldloc (mb, src_var);
6556 mono_mb_emit_ldloc (mb, index_var);
6557 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6558 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6559 mono_mb_emit_byte (mb, stind_op);
6561 /* set the src_ptr */
6562 mono_mb_emit_ldloc (mb, src_var);
6563 mono_mb_emit_ldloc (mb, index_var);
6564 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6565 mono_mb_emit_stloc (mb, 0);
6568 mono_mb_emit_ldloc (mb, dest_ptr);
6569 mono_mb_emit_stloc (mb, 1);
6571 /* emit valuetype conversion code */
6572 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6575 mono_mb_emit_add_to_local (mb, index_var, 1);
6576 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6578 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6580 mono_mb_patch_branch (mb, label3);
6582 if (eklass == mono_defaults.string_class) {
6583 /* Null terminate */
6584 mono_mb_emit_ldloc (mb, dest_ptr);
6585 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6586 mono_mb_emit_byte (mb, CEE_STIND_REF);
6589 mono_mb_patch_branch (mb, label1);
6594 case MARSHAL_ACTION_CONV_OUT:
6595 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6596 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);
6597 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6600 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6601 int param_num = spec->data.array_data.param_num;
6602 MonoType *param_type;
6604 param_type = m->sig->params [param_num];
6606 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6607 char *msg = g_strdup ("Not implemented.");
6608 mono_mb_emit_exception_marshal_directive (mb, msg);
6613 mono_mb_emit_ldarg (mb, argnum);
6615 /* Create the managed array */
6616 mono_mb_emit_ldarg (mb, param_num);
6617 if (m->sig->params [param_num]->byref)
6618 // FIXME: Support other types
6619 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6620 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6621 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6622 /* Store into argument */
6623 mono_mb_emit_byte (mb, CEE_STIND_REF);
6627 if (need_convert || need_free) {
6628 /* FIXME: Optimize blittable case */
6630 guint32 label1, label2, label3;
6631 int index_var, src_ptr, loc, esize;
6633 eklass = klass->element_class;
6634 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6635 esize = sizeof (gpointer);
6636 else if (eklass == mono_defaults.char_class)
6637 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6639 esize = mono_class_native_size (eklass, NULL);
6640 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6641 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6644 mono_mb_emit_ldarg (mb, argnum);
6646 mono_mb_emit_byte (mb, CEE_LDIND_I);
6647 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6649 mono_mb_emit_ldloc (mb, conv_arg);
6650 mono_mb_emit_stloc (mb, src_ptr);
6652 /* Emit marshalling loop */
6653 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6654 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6655 mono_mb_emit_stloc (mb, index_var);
6656 label2 = mono_mb_get_label (mb);
6657 mono_mb_emit_ldloc (mb, index_var);
6658 mono_mb_emit_ldarg (mb, argnum);
6660 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6661 mono_mb_emit_byte (mb, CEE_LDLEN);
6662 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6664 /* Emit marshalling code */
6666 if (eklass == mono_defaults.stringbuilder_class) {
6667 gboolean need_free2;
6668 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6670 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6673 mono_mb_emit_ldarg (mb, argnum);
6675 mono_mb_emit_byte (mb, CEE_LDIND_I);
6676 mono_mb_emit_ldloc (mb, index_var);
6677 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6680 mono_mb_emit_ldloc (mb, src_ptr);
6681 mono_mb_emit_byte (mb, CEE_LDIND_I);
6683 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6687 mono_mb_emit_ldloc (mb, src_ptr);
6688 mono_mb_emit_byte (mb, CEE_LDIND_I);
6690 mono_mb_emit_icall (mb, mono_marshal_free);
6693 else if (eklass == mono_defaults.string_class) {
6696 mono_mb_emit_ldloc (mb, src_ptr);
6697 mono_mb_emit_byte (mb, CEE_LDIND_I);
6699 mono_mb_emit_icall (mb, mono_marshal_free);
6704 /* set the src_ptr */
6705 mono_mb_emit_ldloc (mb, src_ptr);
6706 mono_mb_emit_stloc (mb, 0);
6709 mono_mb_emit_ldarg (mb, argnum);
6711 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6712 mono_mb_emit_ldloc (mb, index_var);
6713 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6714 mono_mb_emit_stloc (mb, 1);
6716 /* emit valuetype conversion code */
6717 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6721 mono_mb_emit_ldloc (mb, src_ptr);
6722 mono_mb_emit_stloc (mb, loc);
6723 mono_mb_emit_ldloc (mb, loc);
6725 emit_struct_free (mb, eklass, loc);
6729 mono_mb_emit_add_to_local (mb, index_var, 1);
6730 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6732 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6734 mono_mb_patch_branch (mb, label1);
6735 mono_mb_patch_branch (mb, label3);
6738 if (klass->element_class->blittable) {
6739 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6741 mono_mb_emit_ldarg (mb, argnum);
6743 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6744 mono_mb_emit_ldloc (mb, conv_arg);
6745 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6750 case MARSHAL_ACTION_PUSH:
6752 mono_mb_emit_ldloc_addr (mb, conv_arg);
6754 mono_mb_emit_ldloc (mb, conv_arg);
6757 case MARSHAL_ACTION_CONV_RESULT:
6758 /* fixme: we need conversions here */
6759 mono_mb_emit_stloc (mb, 3);
6762 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6764 guint32 label1, label2, label3;
6765 int index_var, src_ptr, esize, param_num, num_elem;
6766 MonoMarshalConv conv;
6767 gboolean is_string = FALSE;
6769 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6770 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6773 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6774 mono_mb_emit_exception_marshal_directive (mb, msg);
6778 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6779 mono_mb_emit_exception_marshal_directive (mb, msg);
6782 if (spec->native != MONO_NATIVE_LPARRAY) {
6783 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6784 mono_mb_emit_exception_marshal_directive (mb, msg);
6788 /* FIXME: t is from the method which is wrapped, not the delegate type */
6789 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6791 param_num = spec->data.array_data.param_num;
6792 num_elem = spec->data.array_data.num_elem;
6793 if (spec->data.array_data.elem_mult == 0)
6794 /* param_num is not specified */
6797 if (param_num == -1) {
6798 if (num_elem <= 0) {
6799 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6800 mono_mb_emit_exception_marshal_directive (mb, msg);
6805 /* FIXME: Optimize blittable case */
6807 eklass = klass->element_class;
6808 if (eklass == mono_defaults.string_class) {
6810 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6812 else if (eklass == mono_defaults.stringbuilder_class) {
6814 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6817 conv = MONO_MARSHAL_CONV_INVALID;
6819 mono_marshal_load_type_info (eklass);
6822 esize = sizeof (gpointer);
6824 esize = mono_class_native_size (eklass, NULL);
6825 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6827 mono_mb_emit_byte (mb, CEE_LDNULL);
6828 mono_mb_emit_stloc (mb, conv_arg);
6830 /* Check param index */
6831 if (param_num != -1) {
6832 if (param_num >= m->sig->param_count) {
6833 char *msg = g_strdup ("Array size control parameter index is out of range.");
6834 mono_mb_emit_exception_marshal_directive (mb, msg);
6837 switch (m->sig->params [param_num]->type) {
6850 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6851 mono_mb_emit_exception_marshal_directive (mb, msg);
6858 mono_mb_emit_ldarg (mb, argnum);
6859 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6861 mono_mb_emit_ldarg (mb, argnum);
6862 mono_mb_emit_stloc (mb, src_ptr);
6864 /* Create managed array */
6866 * The LPArray marshalling spec says that sometimes param_num starts
6867 * from 1, sometimes it starts from 0. But MS seems to allways start
6871 if (param_num == -1) {
6872 mono_mb_emit_icon (mb, num_elem);
6874 mono_mb_emit_ldarg (mb, param_num);
6876 mono_mb_emit_icon (mb, num_elem);
6877 mono_mb_emit_byte (mb, CEE_ADD);
6879 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6882 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6883 mono_mb_emit_stloc (mb, conv_arg);
6885 if (eklass->blittable) {
6886 mono_mb_emit_ldloc (mb, conv_arg);
6887 mono_mb_emit_byte (mb, CEE_CONV_I);
6888 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6889 mono_mb_emit_byte (mb, CEE_ADD);
6890 mono_mb_emit_ldarg (mb, argnum);
6891 mono_mb_emit_ldloc (mb, conv_arg);
6892 mono_mb_emit_byte (mb, CEE_LDLEN);
6893 mono_mb_emit_icon (mb, esize);
6894 mono_mb_emit_byte (mb, CEE_MUL);
6895 mono_mb_emit_byte (mb, CEE_PREFIX1);
6896 mono_mb_emit_byte (mb, CEE_CPBLK);
6897 mono_mb_patch_branch (mb, label1);
6901 /* Emit marshalling loop */
6902 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6903 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6904 mono_mb_emit_stloc (mb, index_var);
6905 label2 = mono_mb_get_label (mb);
6906 mono_mb_emit_ldloc (mb, index_var);
6907 mono_mb_emit_ldloc (mb, conv_arg);
6908 mono_mb_emit_byte (mb, CEE_LDLEN);
6909 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6911 /* Emit marshalling code */
6913 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6915 mono_mb_emit_ldloc (mb, conv_arg);
6916 mono_mb_emit_ldloc (mb, index_var);
6918 mono_mb_emit_ldloc (mb, src_ptr);
6919 mono_mb_emit_byte (mb, CEE_LDIND_I);
6921 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6922 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6925 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6926 mono_mb_emit_exception_marshal_directive (mb, msg);
6930 mono_mb_emit_add_to_local (mb, index_var, 1);
6931 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6933 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6935 mono_mb_patch_branch (mb, label1);
6936 mono_mb_patch_branch (mb, label3);
6940 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6942 guint32 label1, label2, label3;
6943 int index_var, dest_ptr, esize, param_num, num_elem;
6944 MonoMarshalConv conv;
6945 gboolean is_string = FALSE;
6948 /* Already handled in CONV_IN */
6951 /* These are already checked in CONV_IN */
6952 g_assert (!t->byref);
6953 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6954 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6956 param_num = spec->data.array_data.param_num;
6957 num_elem = spec->data.array_data.num_elem;
6959 if (spec->data.array_data.elem_mult == 0)
6960 /* param_num is not specified */
6963 if (param_num == -1) {
6964 if (num_elem <= 0) {
6965 g_assert_not_reached ();
6969 /* FIXME: Optimize blittable case */
6971 eklass = klass->element_class;
6972 if (eklass == mono_defaults.string_class) {
6974 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6976 else if (eklass == mono_defaults.stringbuilder_class) {
6978 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6981 conv = MONO_MARSHAL_CONV_INVALID;
6983 mono_marshal_load_type_info (eklass);
6986 esize = sizeof (gpointer);
6988 esize = mono_class_native_size (eklass, NULL);
6990 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6993 mono_mb_emit_ldloc (mb, conv_arg);
6994 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6996 mono_mb_emit_ldarg (mb, argnum);
6997 mono_mb_emit_stloc (mb, dest_ptr);
6999 if (eklass->blittable) {
7001 mono_mb_emit_ldarg (mb, argnum);
7003 mono_mb_emit_ldloc (mb, conv_arg);
7004 mono_mb_emit_byte (mb, CEE_CONV_I);
7005 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
7006 mono_mb_emit_byte (mb, CEE_ADD);
7008 mono_mb_emit_ldloc (mb, conv_arg);
7009 mono_mb_emit_byte (mb, CEE_LDLEN);
7010 mono_mb_emit_icon (mb, esize);
7011 mono_mb_emit_byte (mb, CEE_MUL);
7012 mono_mb_emit_byte (mb, CEE_PREFIX1);
7013 mono_mb_emit_byte (mb, CEE_CPBLK);
7017 /* Emit marshalling loop */
7018 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7019 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7020 mono_mb_emit_stloc (mb, index_var);
7021 label2 = mono_mb_get_label (mb);
7022 mono_mb_emit_ldloc (mb, index_var);
7023 mono_mb_emit_ldloc (mb, conv_arg);
7024 mono_mb_emit_byte (mb, CEE_LDLEN);
7025 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7027 /* Emit marshalling code */
7030 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7033 mono_mb_emit_ldloc (mb, dest_ptr);
7036 mono_mb_emit_ldloc (mb, conv_arg);
7037 mono_mb_emit_ldloc (mb, index_var);
7039 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7041 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7042 mono_mb_emit_byte (mb, stind_op);
7045 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7046 mono_mb_emit_exception_marshal_directive (mb, msg);
7050 mono_mb_emit_add_to_local (mb, index_var, 1);
7051 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7053 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7055 mono_mb_patch_branch (mb, label1);
7056 mono_mb_patch_branch (mb, label3);
7060 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7062 guint32 label1, label2, label3;
7063 int index_var, src, dest, esize;
7064 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
7065 gboolean is_string = FALSE;
7067 g_assert (!t->byref);
7069 eklass = klass->element_class;
7071 mono_marshal_load_type_info (eklass);
7073 if (eklass == mono_defaults.string_class) {
7075 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7078 g_assert_not_reached ();
7082 esize = sizeof (gpointer);
7083 else if (eklass == mono_defaults.char_class)
7084 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7086 esize = mono_class_native_size (eklass, NULL);
7088 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7089 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7091 mono_mb_emit_stloc (mb, src);
7092 mono_mb_emit_ldloc (mb, src);
7093 mono_mb_emit_stloc (mb, 3);
7095 /* Check for null */
7096 mono_mb_emit_ldloc (mb, src);
7097 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7099 /* Allocate native array */
7100 mono_mb_emit_icon (mb, esize);
7101 mono_mb_emit_ldloc (mb, src);
7102 mono_mb_emit_byte (mb, CEE_LDLEN);
7104 if (eklass == mono_defaults.string_class) {
7105 /* Make the array bigger for the terminating null */
7106 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7107 mono_mb_emit_byte (mb, CEE_ADD);
7109 mono_mb_emit_byte (mb, CEE_MUL);
7110 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
7111 mono_mb_emit_stloc (mb, dest);
7112 mono_mb_emit_ldloc (mb, dest);
7113 mono_mb_emit_stloc (mb, 3);
7115 /* Emit marshalling loop */
7116 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7117 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7118 mono_mb_emit_stloc (mb, index_var);
7119 label2 = mono_mb_get_label (mb);
7120 mono_mb_emit_ldloc (mb, index_var);
7121 mono_mb_emit_ldloc (mb, src);
7122 mono_mb_emit_byte (mb, CEE_LDLEN);
7123 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7125 /* Emit marshalling code */
7128 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7131 mono_mb_emit_ldloc (mb, dest);
7134 mono_mb_emit_ldloc (mb, src);
7135 mono_mb_emit_ldloc (mb, index_var);
7137 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7139 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7140 mono_mb_emit_byte (mb, stind_op);
7143 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7144 mono_mb_emit_exception_marshal_directive (mb, msg);
7148 mono_mb_emit_add_to_local (mb, index_var, 1);
7149 mono_mb_emit_add_to_local (mb, dest, esize);
7151 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7153 mono_mb_patch_branch (mb, label3);
7154 mono_mb_patch_branch (mb, label1);
7158 g_assert_not_reached ();
7165 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
7168 return &mono_defaults.int32_class->byval_arg;
7170 switch (spec->native) {
7171 case MONO_NATIVE_I1:
7172 case MONO_NATIVE_U1:
7173 return &mono_defaults.byte_class->byval_arg;
7174 case MONO_NATIVE_VARIANTBOOL:
7175 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
7176 return &mono_defaults.int16_class->byval_arg;
7177 case MONO_NATIVE_BOOLEAN:
7178 return &mono_defaults.int32_class->byval_arg;
7180 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7181 return &mono_defaults.int32_class->byval_arg;
7187 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
7189 MonoClass* conv_arg_class = mono_defaults.int32_class;
7191 switch (spec->native) {
7192 case MONO_NATIVE_I1:
7193 case MONO_NATIVE_U1:
7194 conv_arg_class = mono_defaults.byte_class;
7195 if (ldop) *ldop = CEE_LDIND_I1;
7197 case MONO_NATIVE_VARIANTBOOL:
7198 conv_arg_class = mono_defaults.int16_class;
7199 if (ldop) *ldop = CEE_LDIND_I2;
7201 case MONO_NATIVE_BOOLEAN:
7204 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7207 return conv_arg_class;
7211 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7212 MonoMarshalSpec *spec,
7213 int conv_arg, MonoType **conv_arg_type,
7214 MarshalAction action)
7218 case MARSHAL_ACTION_CONV_IN:
7220 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7222 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7225 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7226 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7228 *conv_arg_type = &conv_arg_class->this_arg;
7230 *conv_arg_type = &conv_arg_class->byval_arg;
7236 MonoMethodBuilder *mb = m->mb;
7239 case MARSHAL_ACTION_CONV_IN: {
7240 MonoType *local_type;
7242 guint8 ldc_op = CEE_LDC_I4_1;
7244 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7246 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7248 *conv_arg_type = local_type;
7249 conv_arg = mono_mb_add_local (mb, local_type);
7251 mono_mb_emit_ldarg (mb, argnum);
7253 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7254 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7255 mono_mb_emit_byte (mb, ldc_op);
7256 mono_mb_emit_stloc (mb, conv_arg);
7257 mono_mb_patch_branch (mb, label_false);
7262 case MARSHAL_ACTION_CONV_OUT:
7264 int label_false, label_end;
7268 mono_mb_emit_ldarg (mb, argnum);
7269 mono_mb_emit_ldloc (mb, conv_arg);
7271 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7272 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7274 label_end = mono_mb_emit_branch (mb, CEE_BR);
7275 mono_mb_patch_branch (mb, label_false);
7276 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7277 mono_mb_patch_branch (mb, label_end);
7279 mono_mb_emit_byte (mb, CEE_STIND_I1);
7283 case MARSHAL_ACTION_PUSH:
7285 mono_mb_emit_ldloc_addr (mb, conv_arg);
7287 mono_mb_emit_ldloc (mb, conv_arg);
7289 mono_mb_emit_ldarg (mb, argnum);
7292 case MARSHAL_ACTION_CONV_RESULT:
7293 /* maybe we need to make sure that it fits within 8 bits */
7294 mono_mb_emit_stloc (mb, 3);
7297 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7298 MonoClass* conv_arg_class = mono_defaults.int32_class;
7299 guint8 ldop = CEE_LDIND_I4;
7300 int label_null, label_false;
7302 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7303 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7306 *conv_arg_type = &conv_arg_class->this_arg;
7308 *conv_arg_type = &conv_arg_class->byval_arg;
7311 mono_mb_emit_ldarg (mb, argnum);
7315 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7316 mono_mb_emit_ldarg (mb, argnum);
7317 mono_mb_emit_byte (mb, ldop);
7321 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7322 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7323 mono_mb_emit_stloc (mb, conv_arg);
7324 mono_mb_patch_branch (mb, label_false);
7327 mono_mb_patch_branch (mb, label_null);
7331 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7332 guint8 stop = CEE_STIND_I4;
7333 guint8 ldc_op = CEE_LDC_I4_1;
7334 int label_null,label_false, label_end;;
7339 switch (spec->native) {
7340 case MONO_NATIVE_I1:
7341 case MONO_NATIVE_U1:
7342 stop = CEE_STIND_I1;
7344 case MONO_NATIVE_VARIANTBOOL:
7345 stop = CEE_STIND_I2;
7346 ldc_op = CEE_LDC_I4_M1;
7354 mono_mb_emit_ldarg (mb, argnum);
7355 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7357 mono_mb_emit_ldarg (mb, argnum);
7358 mono_mb_emit_ldloc (mb, conv_arg);
7360 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7361 mono_mb_emit_byte (mb, ldc_op);
7362 label_end = mono_mb_emit_branch (mb, CEE_BR);
7364 mono_mb_patch_branch (mb, label_false);
7365 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7366 mono_mb_patch_branch (mb, label_end);
7368 mono_mb_emit_byte (mb, stop);
7369 mono_mb_patch_branch (mb, label_null);
7374 g_assert_not_reached ();
7381 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7382 MonoMarshalSpec *spec, int conv_arg,
7383 MonoType **conv_arg_type, MarshalAction action)
7386 MonoMethodBuilder *mb = m->mb;
7389 case MARSHAL_ACTION_CONV_IN:
7390 /* MS seems to allow this in some cases, ie. bxc #158 */
7392 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7393 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7394 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7399 case MARSHAL_ACTION_PUSH:
7400 mono_mb_emit_ldarg (mb, argnum);
7403 case MARSHAL_ACTION_CONV_RESULT:
7404 /* no conversions necessary */
7405 mono_mb_emit_stloc (mb, 3);
7416 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7417 MonoMarshalSpec *spec, int conv_arg,
7418 MonoType **conv_arg_type, MarshalAction action)
7421 MonoMethodBuilder *mb = m->mb;
7424 case MARSHAL_ACTION_PUSH:
7425 /* fixme: dont know how to marshal that. We cant simply
7426 * convert it to a one byte UTF8 character, because an
7427 * unicode character may need more that one byte in UTF8 */
7428 mono_mb_emit_ldarg (mb, argnum);
7431 case MARSHAL_ACTION_CONV_RESULT:
7432 /* fixme: we need conversions here */
7433 mono_mb_emit_stloc (mb, 3);
7444 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7445 MonoMarshalSpec *spec, int conv_arg,
7446 MonoType **conv_arg_type, MarshalAction action)
7449 MonoMethodBuilder *mb = m->mb;
7452 case MARSHAL_ACTION_PUSH:
7453 mono_mb_emit_ldarg (mb, argnum);
7456 case MARSHAL_ACTION_CONV_RESULT:
7457 /* no conversions necessary */
7458 mono_mb_emit_stloc (mb, 3);
7469 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7470 MonoMarshalSpec *spec, int conv_arg,
7471 MonoType **conv_arg_type, MarshalAction action)
7473 /* Ensure that we have marshalling info for this param */
7474 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7476 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7477 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7479 if (spec && spec->native == MONO_NATIVE_ASANY)
7480 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7483 case MONO_TYPE_VALUETYPE:
7484 if (t->data.klass == mono_defaults.handleref_class)
7485 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7487 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7488 case MONO_TYPE_STRING:
7489 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7490 case MONO_TYPE_CLASS:
7491 case MONO_TYPE_OBJECT:
7492 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7493 if (spec && spec->native == MONO_NATIVE_STRUCT)
7494 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7497 #if !defined(DISABLE_COM)
7498 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7499 spec->native == MONO_NATIVE_IDISPATCH ||
7500 spec->native == MONO_NATIVE_INTERFACE))
7501 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7502 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7503 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7504 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7505 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7508 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7509 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7510 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7512 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7513 case MONO_TYPE_ARRAY:
7514 case MONO_TYPE_SZARRAY:
7515 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7516 case MONO_TYPE_BOOLEAN:
7517 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7519 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7520 case MONO_TYPE_CHAR:
7521 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7534 case MONO_TYPE_FNPTR:
7535 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7536 case MONO_TYPE_GENERICINST:
7537 if (mono_type_generic_inst_is_valuetype (t))
7538 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7540 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7546 /* How the arguments of an icall should be wrapped */
7548 /* Don't wrap at all, pass the argument as is */
7549 ICALL_HANDLES_WRAP_NONE,
7550 /* Wrap the argument in an object handle, pass the handle to the icall */
7551 ICALL_HANDLES_WRAP_OBJ,
7552 /* Wrap the argument in an object handle, pass the handle to the icall,
7553 write the value out from the handle when the icall returns */
7554 ICALL_HANDLES_WRAP_OBJ_INOUT,
7555 /* Wrap the argument (a valuetype reference) in a handle to pin its enclosing object,
7556 but pass the raw reference to the icall */
7557 ICALL_HANDLES_WRAP_VALUETYPE_REF,
7561 IcallHandlesWrap wrap;
7562 /* if wrap is NONE or OBJ or VALUETYPE_REF, this is not meaningful.
7563 if wrap is OBJ_INOUT it's the local var that holds the MonoObjectHandle.
7566 } IcallHandlesLocal;
7569 * Describes how to wrap the given parameter.
7572 static IcallHandlesWrap
7573 signature_param_uses_handles (MonoMethodSignature *sig, int param)
7575 if (MONO_TYPE_IS_REFERENCE (sig->params [param])) {
7576 return mono_signature_param_is_out (sig, param) ? ICALL_HANDLES_WRAP_OBJ_INOUT : ICALL_HANDLES_WRAP_OBJ;
7577 } else if (mono_type_is_byref (sig->params [param]))
7578 return ICALL_HANDLES_WRAP_VALUETYPE_REF;
7580 return ICALL_HANDLES_WRAP_NONE;
7586 * mono_marshal_emit_native_wrapper:
7587 * \param image the image to use for looking up custom marshallers
7588 * \param sig The signature of the native function
7589 * \param piinfo Marshalling information
7590 * \param mspecs Marshalling information
7591 * \param aot whenever the created method will be compiled by the AOT compiler
7592 * \param method if non-NULL, the pinvoke method to call
7593 * \param check_exceptions Whenever to check for pending exceptions after the native call
7594 * \param func_param the function to call is passed as a boxed IntPtr as the first parameter
7596 * generates IL code for the pinvoke wrapper, the generated code calls \p func .
7599 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)
7601 EmitMarshalContext m;
7602 MonoMethodSignature *csig;
7604 int i, argnum, *tmp_locals;
7605 int type, param_shift = 0;
7606 int coop_gc_stack_dummy, coop_gc_var;
7608 memset (&m, 0, sizeof (m));
7613 /* we copy the signature, so that we can set pinvoke to 0 */
7615 /* The function address is passed as the first argument */
7616 g_assert (!sig->hasthis);
7619 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7627 /* we allocate local for use with emit_struct_conv() */
7628 /* allocate local 0 (pointer) src_ptr */
7629 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7630 /* allocate local 1 (pointer) dst_ptr */
7631 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7632 /* allocate local 2 (boolean) delete_old */
7633 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7635 /* delete_old = FALSE */
7636 mono_mb_emit_icon (mb, 0);
7637 mono_mb_emit_stloc (mb, 2);
7639 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7640 /* allocate local 3 to store the return value */
7641 mono_mb_add_local (mb, sig->ret);
7644 if (mono_threads_is_coop_enabled ()) {
7645 /* local 4, dummy local used to get a stack address for suspend funcs */
7646 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7647 /* local 5, the local to be used when calling the suspend funcs */
7648 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7652 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7654 * ret = method (...);
7656 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7663 if (MONO_TYPE_ISSTRUCT (sig->ret))
7664 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7666 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7667 /* Return type custom marshaling */
7669 * Since we can't determine the return type of the unmanaged function,
7670 * we assume it returns a pointer, and pass that pointer to
7671 * MarshalNativeToManaged.
7673 csig->ret = &mono_defaults.int_class->byval_arg;
7676 /* we first do all conversions */
7677 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7678 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7680 for (i = 0; i < sig->param_count; i ++) {
7681 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7684 // In coop mode need to register blocking state during native call
7685 if (mono_threads_is_coop_enabled ()) {
7686 // Perform an extra, early lookup of the function address, so any exceptions
7687 // potentially resulting from the lookup occur before entering blocking mode.
7688 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7689 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7690 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7691 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7694 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7695 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7696 mono_mb_emit_stloc (mb, coop_gc_var);
7699 /* push all arguments */
7702 mono_mb_emit_byte (mb, CEE_LDARG_0);
7704 for (i = 0; i < sig->param_count; i++) {
7705 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7708 /* call the native method */
7710 mono_mb_emit_byte (mb, CEE_LDARG_0);
7711 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7712 mono_mb_emit_byte (mb, CEE_LDIND_I);
7713 mono_mb_emit_calli (mb, csig);
7714 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7716 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7718 g_assert_not_reached ();
7722 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7723 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7724 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7725 mono_mb_emit_calli (mb, csig);
7727 mono_mb_emit_native_call (mb, csig, func);
7731 /* Set LastError if needed */
7732 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7735 static MonoMethodSignature *get_last_error_sig = NULL;
7736 if (!get_last_error_sig) {
7737 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7738 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7739 get_last_error_sig->pinvoke = 1;
7743 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7744 * clobber its value.
7746 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7747 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7749 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7750 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7751 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7754 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7758 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7759 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7760 mono_class_init (klass);
7761 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
7762 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7763 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7764 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7765 mono_mb_emit_stloc (mb, m.vtaddr_var);
7769 /* Unblock before converting the result, since that can involve calls into the runtime */
7770 if (mono_threads_is_coop_enabled ()) {
7771 mono_mb_emit_ldloc (mb, coop_gc_var);
7772 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7773 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7776 /* convert the result */
7777 if (!sig->ret->byref) {
7778 MonoMarshalSpec *spec = mspecs [0];
7779 type = sig->ret->type;
7781 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7782 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7786 case MONO_TYPE_VOID:
7788 case MONO_TYPE_VALUETYPE:
7789 klass = sig->ret->data.klass;
7790 if (klass->enumtype) {
7791 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7794 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7808 case MONO_TYPE_FNPTR:
7809 case MONO_TYPE_STRING:
7810 case MONO_TYPE_CLASS:
7811 case MONO_TYPE_OBJECT:
7812 case MONO_TYPE_BOOLEAN:
7813 case MONO_TYPE_ARRAY:
7814 case MONO_TYPE_SZARRAY:
7815 case MONO_TYPE_CHAR:
7817 case MONO_TYPE_GENERICINST:
7818 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7820 case MONO_TYPE_TYPEDBYREF:
7822 g_warning ("return type 0x%02x unknown", sig->ret->type);
7823 g_assert_not_reached ();
7827 mono_mb_emit_stloc (mb, 3);
7831 * Need to call this after converting the result since MONO_VTADDR needs
7832 * to be adjacent to the call instruction.
7834 if (check_exceptions)
7835 emit_thread_interrupt_checkpoint (mb);
7837 /* we need to convert byref arguments back and free string arrays */
7838 for (i = 0; i < sig->param_count; i++) {
7839 MonoType *t = sig->params [i];
7840 MonoMarshalSpec *spec = mspecs [i + 1];
7842 argnum = i + param_shift;
7844 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7845 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7850 case MONO_TYPE_STRING:
7851 case MONO_TYPE_VALUETYPE:
7852 case MONO_TYPE_CLASS:
7853 case MONO_TYPE_OBJECT:
7854 case MONO_TYPE_SZARRAY:
7855 case MONO_TYPE_BOOLEAN:
7856 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7863 if (!MONO_TYPE_IS_VOID(sig->ret))
7864 mono_mb_emit_ldloc (mb, 3);
7866 mono_mb_emit_byte (mb, CEE_RET);
7868 #endif /* DISABLE_JIT */
7871 * mono_marshal_get_native_wrapper:
7872 * \param method The \c MonoMethod to wrap.
7873 * \param check_exceptions Whenever to check for pending exceptions
7875 * Generates IL code for the pinvoke wrapper. The generated method
7876 * calls the unmanaged code in \c piinfo->addr.
7879 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7881 MonoMethodSignature *sig, *csig;
7882 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7883 MonoMethodBuilder *mb;
7884 MonoMarshalSpec **mspecs;
7887 gboolean pinvoke = FALSE;
7890 const char *exc_class = "MissingMethodException";
7891 const char *exc_arg = NULL;
7894 g_assert (method != NULL);
7895 g_assert (mono_method_signature (method)->pinvoke);
7897 GHashTable **cache_ptr;
7900 if (check_exceptions)
7901 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7903 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7905 if (check_exceptions)
7906 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7908 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7911 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7913 if ((res = mono_marshal_find_in_cache (cache, method)))
7916 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7917 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7921 return mono_cominterop_get_native_wrapper (method);
7923 g_assert_not_reached ();
7927 sig = mono_method_signature (method);
7929 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7930 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7933 if (!piinfo->addr) {
7935 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7936 exc_arg = "Method contains unsupported native code";
7938 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7940 piinfo->addr = mono_lookup_internal_call (method);
7944 /* hack - redirect certain string constructors to CreateString */
7945 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7946 g_assert (!pinvoke);
7947 g_assert (method->string_ctor);
7948 g_assert (sig->hasthis);
7950 /* CreateString returns a value */
7951 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7952 csig->ret = &mono_defaults.string_class->byval_arg;
7956 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7957 if (!strcmp ("CreateString", res->name) &&
7958 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7961 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7962 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7964 /* create a wrapper to preserve .ctor in stack trace */
7965 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7968 mono_mb_emit_byte (mb, CEE_LDARG_0);
7969 for (i = 1; i <= csig->param_count; i++)
7970 mono_mb_emit_ldarg (mb, i);
7971 mono_mb_emit_managed_call (mb, res, NULL);
7972 mono_mb_emit_byte (mb, CEE_RET);
7975 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7976 info->d.string_ctor.method = method;
7978 /* use native_wrapper_cache because internal calls are looked up there */
7979 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7980 csig->param_count + 1, info, NULL);
7987 /* exception will be thrown */
7988 piinfo->addr = NULL;
7989 g_warning ("cannot find CreateString for .ctor");
7992 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7994 mb->method->save_lmf = 1;
7997 * In AOT mode and embedding scenarios, it is possible that the icall is not
7998 * registered in the runtime doing the AOT compilation.
8000 if (!piinfo->addr && !aot) {
8002 mono_mb_emit_exception (mb, exc_class, exc_arg);
8004 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8005 info->d.managed_to_native.method = method;
8007 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8009 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
8010 csig->param_count + 16, info, NULL);
8016 /* internal calls: we simply push all arguments and call the method (no conversions) */
8017 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8019 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
8021 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8023 //printf ("%s\n", mono_method_full_name (method, 1));
8025 /* hack - string constructors returns a value */
8026 if (method->string_ctor)
8027 csig->ret = &mono_defaults.string_class->byval_arg;
8031 MonoClass *handle_stack_mark_class;
8032 MonoClass *error_class;
8033 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
8034 MonoMethodSignature *call_sig = csig;
8035 gboolean uses_handles = FALSE;
8036 gboolean save_handles_to_locals = FALSE;
8037 IcallHandlesLocal *handles_locals = NULL;
8039 (void) mono_lookup_internal_call_full (method, &uses_handles);
8041 /* If it uses handles and MonoError, it had better check exceptions */
8042 g_assert (!uses_handles || check_exceptions);
8045 MonoMethodSignature *ret;
8047 /* Add a MonoError argument and figure out which args need to be wrapped in handles */
8048 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
8049 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
8051 ret->param_count = csig->param_count + 1;
8052 ret->ret = csig->ret;
8054 handles_locals = g_new0 (IcallHandlesLocal, csig->param_count);
8055 for (int i = 0; i < csig->param_count; ++i) {
8056 IcallHandlesWrap w = signature_param_uses_handles (csig, i);
8057 handles_locals [i].wrap = w;
8059 case ICALL_HANDLES_WRAP_OBJ:
8060 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8061 ret->params [i] = mono_class_get_byref_type (mono_class_from_mono_type(csig->params[i]));
8062 if (w == ICALL_HANDLES_WRAP_OBJ_INOUT)
8063 save_handles_to_locals = TRUE;
8065 case ICALL_HANDLES_WRAP_NONE:
8066 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8067 ret->params [i] = csig->params [i];
8070 g_assert_not_reached ();
8073 /* Add MonoError* param */
8074 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
8075 ret->pinvoke = csig->pinvoke;
8081 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
8082 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
8084 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
8085 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
8086 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
8088 if (save_handles_to_locals) {
8089 /* add a local var to hold the handles for each out arg */
8090 for (int i = 0; i < sig->param_count; ++i) {
8091 int j = i + sig->hasthis;
8092 switch (handles_locals[j].wrap) {
8093 case ICALL_HANDLES_WRAP_NONE:
8094 case ICALL_HANDLES_WRAP_OBJ:
8095 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8096 handles_locals [j].handle = -1;
8098 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8099 handles_locals [j].handle = mono_mb_add_local (mb, sig->params [i]);
8102 g_assert_not_reached ();
8112 * Add a null check since public icalls can be called with 'call' which
8113 * does no such check.
8115 mono_mb_emit_byte (mb, CEE_LDARG_0);
8116 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8117 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8118 mono_mb_patch_branch (mb, pos);
8122 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8123 mono_mb_emit_ldloc_addr (mb, error_var);
8124 mono_mb_emit_icall (mb, mono_icall_start);
8125 mono_mb_emit_stloc (mb, thread_info_var);
8128 mono_mb_emit_byte (mb, CEE_LDARG_0);
8129 /* TODO support adding wrappers to non-static struct methods */
8130 g_assert (!mono_class_is_valuetype(mono_method_get_class (method)));
8131 mono_mb_emit_icall (mb, mono_icall_handle_new);
8133 for (i = 0; i < sig->param_count; i++) {
8134 /* load each argument. references into the managed heap get wrapped in handles */
8135 int j = i + sig->hasthis;
8136 switch (handles_locals[j].wrap) {
8137 case ICALL_HANDLES_WRAP_NONE:
8138 mono_mb_emit_ldarg (mb, j);
8140 case ICALL_HANDLES_WRAP_OBJ:
8141 /* argI = mono_handle_new (argI_raw) */
8142 mono_mb_emit_ldarg (mb, j);
8143 mono_mb_emit_icall (mb, mono_icall_handle_new);
8145 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8146 /* handleI = argI = mono_handle_new (NULL) */
8147 mono_mb_emit_byte (mb, CEE_LDNULL);
8148 mono_mb_emit_icall (mb, mono_icall_handle_new);
8150 mono_mb_emit_byte (mb, CEE_DUP);
8152 mono_mb_emit_stloc (mb, handles_locals[j].handle);
8154 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8155 /* (void) mono_handle_new (argI); argI */
8156 mono_mb_emit_ldarg (mb, j);
8157 mono_mb_emit_byte (mb, CEE_DUP);
8158 mono_mb_emit_icall (mb, mono_icall_handle_new_interior);
8159 mono_mb_emit_byte (mb, CEE_POP);
8161 fprintf (stderr, " Method %s.%s.%s has byref valuetype argument %d\n", method->klass->name_space, method->klass->name, method->name, i);
8165 g_assert_not_reached ();
8168 mono_mb_emit_ldloc_addr (mb, error_var);
8171 mono_mb_emit_byte (mb, CEE_LDARG_0);
8172 for (i = 0; i < sig->param_count; i++)
8173 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8177 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8178 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8179 mono_mb_emit_calli (mb, call_sig);
8181 g_assert (piinfo->addr);
8182 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
8186 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
8187 // if (ret != NULL_HANDLE) {
8188 // ret = MONO_HANDLE_RAW(ret)
8190 mono_mb_emit_byte (mb, CEE_DUP);
8191 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8192 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8193 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8194 mono_mb_patch_branch (mb, pos);
8196 if (save_handles_to_locals) {
8197 for (i = 0; i < sig->param_count; i++) {
8198 int j = i + sig->hasthis;
8199 switch (handles_locals [j].wrap) {
8200 case ICALL_HANDLES_WRAP_NONE:
8201 case ICALL_HANDLES_WRAP_OBJ:
8202 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8204 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8205 /* *argI_raw = MONO_HANDLE_RAW (handleI) */
8208 mono_mb_emit_ldarg (mb, j);
8210 mono_mb_emit_ldloc (mb, handles_locals [j].handle);
8211 /* MONO_HANDLE_RAW(handleI) */
8212 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8213 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8214 /* *argI_raw = MONO_HANDLE_RAW(handleI) */
8215 mono_mb_emit_byte (mb, CEE_STIND_REF);
8218 g_assert_not_reached ();
8222 g_free (handles_locals);
8224 mono_mb_emit_ldloc (mb, thread_info_var);
8225 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8226 mono_mb_emit_ldloc_addr (mb, error_var);
8227 mono_mb_emit_icall (mb, mono_icall_end);
8230 if (check_exceptions)
8231 emit_thread_interrupt_checkpoint (mb);
8232 mono_mb_emit_byte (mb, CEE_RET);
8234 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8235 info->d.managed_to_native.method = method;
8237 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
8239 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8248 g_assert (piinfo->addr);
8251 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8252 mono_method_get_marshal_info (method, mspecs);
8254 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
8256 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
8257 info->d.managed_to_native.method = method;
8259 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8261 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8266 for (i = sig->param_count; i >= 0; i--)
8268 mono_metadata_free_marshal_spec (mspecs [i]);
8272 /* mono_method_print_code (res); */
8278 * mono_marshal_get_native_func_wrapper:
8279 * \param image The image to use for memory allocation and for looking up custom marshallers.
8280 * \param sig The signature of the function
8281 * \param func The native function to wrap
8283 * \returns a wrapper method around native functions, similar to the pinvoke
8287 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8288 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8290 MonoMethodSignature *csig;
8292 SignaturePointerPair key, *new_key;
8293 MonoMethodBuilder *mb;
8302 // Generic types are not safe to place in MonoImage caches.
8303 g_assert (!sig->is_inflated);
8305 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
8306 if ((res = mono_marshal_find_in_cache (cache, &key)))
8309 name = g_strdup_printf ("wrapper_native_%p", func);
8310 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8311 mb->method->save_lmf = 1;
8314 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8317 csig = mono_metadata_signature_dup_full (image, sig);
8320 new_key = g_new (SignaturePointerPair,1);
8321 new_key->sig = csig;
8322 new_key->pointer = func;
8324 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
8330 mono_marshal_set_wrapper_info (res, NULL);
8336 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8340 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8342 MonoMethodSignature *sig, *csig;
8343 MonoMethodBuilder *mb;
8348 MonoMethodPInvoke mpiinfo;
8349 MonoMethodPInvoke *piinfo = &mpiinfo;
8350 MonoMarshalSpec **mspecs;
8351 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8352 MonoImage *image = invoke->klass->image;
8355 // FIXME: include UnmanagedFunctionPointerAttribute info
8358 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8360 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8362 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8365 memset (&mpiinfo, 0, sizeof (mpiinfo));
8366 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8368 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8369 mono_method_get_marshal_info (invoke, mspecs);
8370 /* Freed below so don't alloc from mempool */
8371 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8374 name = g_strdup_printf ("wrapper_aot_native");
8375 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8376 mb->method->save_lmf = 1;
8379 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8382 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8383 info->d.managed_to_native.method = invoke;
8385 g_assert (!sig->hasthis);
8386 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8388 res = mono_mb_create_and_cache_full (cache, invoke,
8389 mb, csig, csig->param_count + 16,
8393 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8395 mono_metadata_free_marshal_spec (mspecs [i]);
8403 * mono_marshal_emit_managed_wrapper:
8405 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8406 * the delegate which wraps the managed method to be called. For closed delegates,
8407 * it could have fewer parameters than the method it wraps.
8408 * THIS_LOC is the memory location where the target of the delegate is stored.
8411 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8414 MonoMethodSignature *sig, *csig;
8420 /* we first do all conversions */
8421 for (i = 0; i < sig->param_count; i ++) {
8422 MonoType *t = sig->params [i];
8425 case MONO_TYPE_OBJECT:
8426 case MONO_TYPE_CLASS:
8427 case MONO_TYPE_VALUETYPE:
8428 case MONO_TYPE_ARRAY:
8429 case MONO_TYPE_SZARRAY:
8430 case MONO_TYPE_STRING:
8431 case MONO_TYPE_BOOLEAN:
8432 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8436 if (!sig->ret->byref) {
8437 switch (sig->ret->type) {
8438 case MONO_TYPE_STRING:
8439 csig->ret = &mono_defaults.int_class->byval_arg;
8446 MonoMethodSignature *sig, *csig;
8447 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8448 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8449 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8450 gboolean closed = FALSE;
8455 /* allocate local 0 (pointer) src_ptr */
8456 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8457 /* allocate local 1 (pointer) dst_ptr */
8458 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8459 /* allocate local 2 (boolean) delete_old */
8460 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8462 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8463 /* Closed delegate */
8464 g_assert (sig->param_count == invoke_sig->param_count + 1);
8466 /* Use a new signature without the first argument */
8467 sig = mono_metadata_signature_dup (sig);
8468 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8469 sig->param_count --;
8472 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8473 /* allocate local 3 to store the return value */
8474 mono_mb_add_local (mb, sig->ret);
8477 if (MONO_TYPE_ISSTRUCT (sig->ret))
8478 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8480 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8481 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8483 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8484 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8489 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8490 * mono_threads_attach_coop ();
8494 * ret = method (...);
8495 * } catch (Exception e) {
8496 * ex = mono_gchandle_new (e, false);
8498 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8499 * mono_threads_detach_coop ();
8502 * mono_marshal_ftnptr_eh_callback (ex);
8508 clauses = g_new0 (MonoExceptionClause, 2);
8510 clause_catch = &clauses [0];
8511 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8512 clause_catch->data.catch_class = mono_defaults.exception_class;
8514 clause_finally = &clauses [1];
8515 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8517 mono_mb_emit_icon (mb, 0);
8518 mono_mb_emit_stloc (mb, 2);
8520 mono_mb_emit_icon (mb, -1);
8521 mono_mb_emit_byte (mb, CEE_CONV_U4);
8522 mono_mb_emit_stloc (mb, ex_local);
8525 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8527 if (!mono_threads_is_coop_enabled ()) {
8528 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8529 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8531 /* mono_threads_attach_coop (); */
8532 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8533 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8534 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8535 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8536 mono_mb_emit_stloc (mb, attach_cookie_local);
8539 /* <interrupt check> */
8540 emit_thread_interrupt_checkpoint (mb);
8542 /* we first do all conversions */
8543 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8544 for (i = 0; i < sig->param_count; i ++) {
8545 MonoType *t = sig->params [i];
8548 case MONO_TYPE_OBJECT:
8549 case MONO_TYPE_CLASS:
8550 case MONO_TYPE_VALUETYPE:
8551 case MONO_TYPE_ARRAY:
8552 case MONO_TYPE_SZARRAY:
8553 case MONO_TYPE_STRING:
8554 case MONO_TYPE_BOOLEAN:
8555 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8565 if (target_handle) {
8566 mono_mb_emit_icon (mb, (gint32)target_handle);
8567 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8570 g_assert_not_reached ();
8572 } else if (closed) {
8573 mono_mb_emit_icon (mb, (gint32)target_handle);
8574 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8577 for (i = 0; i < sig->param_count; i++) {
8578 MonoType *t = sig->params [i];
8580 if (tmp_locals [i]) {
8582 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8584 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8587 mono_mb_emit_ldarg (mb, i);
8590 /* ret = method (...) */
8591 mono_mb_emit_managed_call (mb, method, NULL);
8593 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8594 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8595 mono_class_init (klass);
8596 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
8597 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8598 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8599 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8600 mono_mb_emit_stloc (mb, m->vtaddr_var);
8604 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8605 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8606 } else if (!sig->ret->byref) {
8607 switch (sig->ret->type) {
8608 case MONO_TYPE_VOID:
8610 case MONO_TYPE_BOOLEAN:
8613 case MONO_TYPE_CHAR:
8625 case MONO_TYPE_OBJECT:
8626 mono_mb_emit_stloc (mb, 3);
8628 case MONO_TYPE_STRING:
8629 csig->ret = &mono_defaults.int_class->byval_arg;
8630 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8632 case MONO_TYPE_VALUETYPE:
8633 case MONO_TYPE_CLASS:
8634 case MONO_TYPE_SZARRAY:
8635 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8638 g_warning ("return type 0x%02x unknown", sig->ret->type);
8639 g_assert_not_reached ();
8642 mono_mb_emit_stloc (mb, 3);
8645 /* Convert byref arguments back */
8646 for (i = 0; i < sig->param_count; i ++) {
8647 MonoType *t = sig->params [i];
8648 MonoMarshalSpec *spec = mspecs [i + 1];
8650 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8651 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8653 else if (t->byref) {
8655 case MONO_TYPE_CLASS:
8656 case MONO_TYPE_VALUETYPE:
8657 case MONO_TYPE_OBJECT:
8658 case MONO_TYPE_STRING:
8659 case MONO_TYPE_BOOLEAN:
8660 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8666 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8667 /* The [Out] information is encoded in the delegate signature */
8669 case MONO_TYPE_SZARRAY:
8670 case MONO_TYPE_CLASS:
8671 case MONO_TYPE_VALUETYPE:
8672 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8675 g_assert_not_reached ();
8680 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8684 /* catch (Exception e) { */
8685 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8686 clause_catch->handler_offset = mono_mb_get_label (mb);
8688 mono_mb_emit_stloc (mb, e_local);
8690 /* ex = mono_gchandle_new (e, false); */
8691 mono_mb_emit_ldloc (mb, e_local);
8692 mono_mb_emit_icon (mb, 0);
8693 mono_mb_emit_icall (mb, mono_gchandle_new);
8694 mono_mb_emit_stloc (mb, ex_local);
8696 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8699 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8702 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8703 clause_finally->handler_offset = mono_mb_get_label (mb);
8705 if (!mono_threads_is_coop_enabled ()) {
8706 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8707 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8709 /* mono_threads_detach_coop (); */
8710 mono_mb_emit_ldloc (mb, attach_cookie_local);
8711 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8712 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8716 mono_mb_emit_ldloc (mb, ex_local);
8717 mono_mb_emit_icon (mb, -1);
8718 mono_mb_emit_byte (mb, CEE_CONV_U4);
8719 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8721 /* mono_marshal_ftnptr_eh_callback (ex) */
8722 mono_mb_emit_ldloc (mb, ex_local);
8723 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8726 mono_mb_patch_branch (mb, ex_m1_pos);
8728 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8730 /* } [endfinally] */
8731 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8733 mono_mb_patch_branch (mb, leave_try_pos);
8734 mono_mb_patch_branch (mb, leave_catch_pos);
8737 if (m->retobj_var) {
8738 mono_mb_emit_ldloc (mb, m->retobj_var);
8739 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8740 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8743 if (!MONO_TYPE_IS_VOID(sig->ret))
8744 mono_mb_emit_ldloc (mb, 3);
8745 mono_mb_emit_byte (mb, CEE_RET);
8748 mono_mb_set_clauses (mb, 2, clauses);
8756 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8758 MonoMethodSignature *sig;
8763 * Under windows, delegates passed to native code must use the STDCALL
8764 * calling convention.
8766 csig->call_convention = MONO_CALL_STDCALL;
8769 sig = mono_method_signature (method);
8771 /* Change default calling convention if needed */
8772 /* Why is this a modopt ? */
8773 if (sig->ret && sig->ret->num_mods) {
8774 for (i = 0; i < sig->ret->num_mods; ++i) {
8776 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8777 g_assert (mono_error_ok (&error));
8778 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8779 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8780 csig->call_convention = MONO_CALL_C;
8781 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8782 csig->call_convention = MONO_CALL_STDCALL;
8783 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8784 csig->call_convention = MONO_CALL_FASTCALL;
8785 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8786 csig->call_convention = MONO_CALL_THISCALL;
8793 * mono_marshal_get_managed_wrapper:
8794 * Generates IL code to call managed methods from unmanaged code
8795 * If \p target_handle is \c 0, the wrapper info will be a \c WrapperInfo structure.
8798 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle, MonoError *error)
8800 MonoMethodSignature *sig, *csig, *invoke_sig;
8801 MonoMethodBuilder *mb;
8802 MonoMethod *res, *invoke;
8803 MonoMarshalSpec **mspecs;
8804 MonoMethodPInvoke piinfo;
8807 EmitMarshalContext m;
8809 g_assert (method != NULL);
8812 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
8813 mono_error_set_invalid_program (error, "Failed because method (%s) marked PInvokeCallback (managed method) and extern (unmanaged) simultaneously.", mono_method_full_name (method, TRUE));
8818 * FIXME: Should cache the method+delegate type pair, since the same method
8819 * could be called with different delegates, thus different marshalling
8822 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8824 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8827 invoke = mono_get_delegate_invoke (delegate_klass);
8828 invoke_sig = mono_method_signature (invoke);
8830 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8831 mono_method_get_marshal_info (invoke, mspecs);
8833 sig = mono_method_signature (method);
8835 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8837 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8838 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8840 /* we copy the signature, so that we can modify it */
8842 /* Need to free this later */
8843 csig = mono_metadata_signature_dup (invoke_sig);
8845 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8849 memset (&m, 0, sizeof (m));
8855 m.image = method->klass->image;
8857 mono_marshal_set_callconv_from_modopt (invoke, csig);
8859 /* The attribute is only available in Net 2.0 */
8860 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8861 MonoCustomAttrInfo *cinfo;
8862 MonoCustomAttrEntry *attr;
8865 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8866 * contents of the attribute without constructing it, as that might not be
8867 * possible when running in cross-compiling mode.
8869 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, error);
8870 mono_error_assert_ok (error);
8873 for (i = 0; i < cinfo->num_attrs; ++i) {
8874 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8875 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8876 attr = &cinfo->attrs [i];
8882 MonoArray *typed_args, *named_args;
8883 CattrNamedArg *arginfo;
8887 MonoBoolean set_last_error = 0;
8890 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8891 g_assert (mono_error_ok (&error));
8892 g_assert (mono_array_length (typed_args) == 1);
8895 o = mono_array_get (typed_args, MonoObject*, 0);
8896 call_conv = *(gint32*)mono_object_unbox (o);
8899 for (i = 0; i < mono_array_length (named_args); ++i) {
8900 CattrNamedArg *narg = &arginfo [i];
8902 o = mono_array_get (named_args, MonoObject*, i);
8904 g_assert (narg->field);
8905 if (!strcmp (narg->field->name, "CharSet")) {
8906 charset = *(gint32*)mono_object_unbox (o);
8907 } else if (!strcmp (narg->field->name, "SetLastError")) {
8908 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8909 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8910 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8911 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8912 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8914 g_assert_not_reached ();
8920 memset (&piinfo, 0, sizeof (piinfo));
8922 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8924 csig->call_convention = call_conv - 1;
8927 if (cinfo && !cinfo->cached)
8928 mono_custom_attrs_free (cinfo);
8931 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8933 if (!target_handle) {
8936 // FIXME: Associate it with the method+delegate_klass pair
8937 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8938 info->d.native_to_managed.method = method;
8939 info->d.native_to_managed.klass = delegate_klass;
8941 res = mono_mb_create_and_cache_full (cache, method,
8942 mb, csig, sig->param_count + 16,
8948 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8952 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8954 mono_metadata_free_marshal_spec (mspecs [i]);
8957 /* mono_method_print_code (res); */
8963 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8967 MonoMethodSignature *sig;
8968 MonoMethodBuilder *mb;
8973 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8975 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8978 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8979 MonoMethodSignature *csig;
8980 MonoMarshalSpec **mspecs;
8981 EmitMarshalContext m;
8983 sig = mono_method_signature (method);
8984 g_assert (!sig->hasthis);
8986 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8987 mono_method_get_marshal_info (method, mspecs);
8989 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8990 csig = mono_metadata_signature_dup_full (image, sig);
8994 memset (&m, 0, sizeof (m));
9002 mono_marshal_set_callconv_from_modopt (method, csig);
9004 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9006 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
9011 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
9014 for (i = sig->param_count; i >= 0; i--)
9016 mono_metadata_free_marshal_spec (mspecs [i]);
9019 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
9020 mono_error_assert_ok (&error);
9021 return compiled_ptr;
9024 sig = mono_method_signature (method);
9025 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9027 param_count = sig->param_count + sig->hasthis;
9029 for (i = 0; i < param_count; i++)
9030 mono_mb_emit_ldarg (mb, i);
9032 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9033 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9035 mono_mb_emit_op (mb, CEE_CALL, method);
9036 mono_mb_emit_byte (mb, CEE_RET);
9041 method = mono_mb_create (mb, sig, param_count, NULL);
9044 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
9045 mono_error_assert_ok (&error);
9046 return compiled_ptr;
9052 * The code directly following this is the cache hit, value positive branch
9054 * This function takes a new method builder with 0 locals and adds two locals
9055 * to create multiple out-branches and the fall through state of having the object
9056 * on the stack after a cache miss
9059 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
9060 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
9061 MonoMethodBuilder *mb)
9065 /* allocate local 0 (pointer) obj_vtable */
9066 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9067 /* allocate local 1 (pointer) cached_vtable */
9068 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9071 mono_mb_emit_ldarg (mb, obj_arg_position);
9072 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
9074 /*obj_vtable = obj->vtable;*/
9075 mono_mb_emit_ldarg (mb, obj_arg_position);
9076 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9077 mono_mb_emit_byte (mb, CEE_LDIND_I);
9078 mono_mb_emit_stloc (mb, 0);
9080 /* cached_vtable = *cache*/
9081 mono_mb_emit_ldarg (mb, cache_arg_position);
9082 mono_mb_emit_byte (mb, CEE_LDIND_I);
9083 mono_mb_emit_stloc (mb, 1);
9085 mono_mb_emit_ldloc (mb, 1);
9086 mono_mb_emit_byte (mb, CEE_LDC_I4);
9087 mono_mb_emit_i4 (mb, ~0x1);
9088 mono_mb_emit_byte (mb, CEE_CONV_I);
9089 mono_mb_emit_byte (mb, CEE_AND);
9090 mono_mb_emit_ldloc (mb, 0);
9091 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9092 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9094 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9095 mono_mb_emit_ldloc (mb, 1);
9096 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9097 mono_mb_emit_byte (mb, CEE_CONV_U);
9098 mono_mb_emit_byte (mb, CEE_AND);
9099 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
9100 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9103 mono_mb_patch_branch (mb, cache_miss_pos);
9106 mono_mb_emit_ldarg (mb, obj_arg_position);
9107 mono_mb_emit_ldarg (mb, class_arg_position);
9108 mono_mb_emit_ldarg (mb, cache_arg_position);
9109 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
9112 #endif /* DISABLE_JIT */
9115 * mono_marshal_get_castclass_with_cache:
9116 * This does the equivalent of \c mono_object_castclass_with_cache.
9119 mono_marshal_get_castclass_with_cache (void)
9121 static MonoMethod *cached;
9123 MonoMethodBuilder *mb;
9124 MonoMethodSignature *sig;
9125 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
9128 const int obj_arg_position = 0;
9129 const int class_arg_position = 1;
9130 const int cache_arg_position = 2;
9135 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9136 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9137 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9138 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9139 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9140 sig->ret = &mono_defaults.object_class->byval_arg;
9144 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9145 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9146 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9149 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9150 mono_mb_emit_ldarg (mb, obj_arg_position);
9151 mono_mb_emit_byte (mb, CEE_RET);
9154 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9155 mono_mb_patch_branch (mb, invalid_cast_pos);
9156 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9159 mono_mb_patch_branch (mb, return_null_pos);
9160 mono_mb_emit_byte (mb, CEE_LDNULL);
9161 mono_mb_emit_byte (mb, CEE_RET);
9162 #endif /* DISABLE_JIT */
9164 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9165 res = mono_mb_create (mb, sig, 8, info);
9168 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9169 mono_free_method (res);
9170 mono_metadata_free_method_signature (sig);
9177 /* this is an icall */
9179 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
9182 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
9183 if (mono_error_set_pending_exception (&error))
9186 if (mono_object_is_transparent_proxy (obj))
9189 uintptr_t cache_update = (uintptr_t)obj->vtable;
9191 cache_update = cache_update | 0x1;
9193 *cache = cache_update;
9199 * mono_marshal_get_isinst_with_cache:
9200 * This does the equivalent of \c mono_marshal_isinst_with_cache.
9203 mono_marshal_get_isinst_with_cache (void)
9205 static MonoMethod *cached;
9207 MonoMethodBuilder *mb;
9208 MonoMethodSignature *sig;
9209 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
9212 const int obj_arg_position = 0;
9213 const int class_arg_position = 1;
9214 const int cache_arg_position = 2;
9219 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9220 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9222 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9224 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9226 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9227 sig->ret = &mono_defaults.object_class->byval_arg;
9231 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9232 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9233 // Return the object gotten via the slow path.
9234 mono_mb_emit_byte (mb, CEE_RET);
9237 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9238 mono_mb_patch_branch (mb, return_null_pos);
9239 mono_mb_emit_byte (mb, CEE_LDNULL);
9240 mono_mb_emit_byte (mb, CEE_RET);
9243 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9244 mono_mb_emit_ldarg (mb, obj_arg_position);
9245 mono_mb_emit_byte (mb, CEE_RET);
9248 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9249 res = mono_mb_create (mb, sig, 8, info);
9252 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9253 mono_free_method (res);
9254 mono_metadata_free_method_signature (sig);
9262 * mono_marshal_get_struct_to_ptr:
9263 * \param klass \c MonoClass
9265 * Generates IL code for <code>StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)</code>
9268 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9270 MonoMethodBuilder *mb;
9271 static MonoMethod *stoptr = NULL;
9275 g_assert (klass != NULL);
9277 mono_marshal_load_type_info (klass);
9279 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9280 if (marshal_info->str_to_ptr)
9281 return marshal_info->str_to_ptr;
9284 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9287 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9290 if (klass->blittable) {
9291 mono_mb_emit_byte (mb, CEE_LDARG_1);
9292 mono_mb_emit_byte (mb, CEE_LDARG_0);
9293 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9294 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9295 mono_mb_emit_byte (mb, CEE_PREFIX1);
9296 mono_mb_emit_byte (mb, CEE_CPBLK);
9299 /* allocate local 0 (pointer) src_ptr */
9300 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9301 /* allocate local 1 (pointer) dst_ptr */
9302 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9303 /* allocate local 2 (boolean) delete_old */
9304 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9305 mono_mb_emit_byte (mb, CEE_LDARG_2);
9306 mono_mb_emit_stloc (mb, 2);
9308 /* initialize src_ptr to point to the start of object data */
9309 mono_mb_emit_byte (mb, CEE_LDARG_0);
9310 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9311 mono_mb_emit_stloc (mb, 0);
9313 /* initialize dst_ptr */
9314 mono_mb_emit_byte (mb, CEE_LDARG_1);
9315 mono_mb_emit_stloc (mb, 1);
9317 emit_struct_conv (mb, klass, FALSE);
9320 mono_mb_emit_byte (mb, CEE_RET);
9322 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9323 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9326 mono_marshal_lock ();
9327 if (!marshal_info->str_to_ptr)
9328 marshal_info->str_to_ptr = res;
9330 res = marshal_info->str_to_ptr;
9331 mono_marshal_unlock ();
9336 * mono_marshal_get_ptr_to_struct:
9337 * \param klass \c MonoClass
9338 * Generates IL code for <code>PtrToStructure (IntPtr src, object structure)</code>
9341 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9343 MonoMethodBuilder *mb;
9344 static MonoMethodSignature *ptostr = NULL;
9348 g_assert (klass != NULL);
9350 mono_marshal_load_type_info (klass);
9352 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9353 if (marshal_info->ptr_to_str)
9354 return marshal_info->ptr_to_str;
9357 MonoMethodSignature *sig;
9359 /* Create the signature corresponding to
9360 static void PtrToStructure (IntPtr ptr, object structure);
9361 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9362 sig = mono_create_icall_signature ("void ptr object");
9363 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9365 mono_memory_barrier ();
9369 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9372 if (klass->blittable) {
9373 mono_mb_emit_byte (mb, CEE_LDARG_1);
9374 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9375 mono_mb_emit_byte (mb, CEE_LDARG_0);
9376 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9377 mono_mb_emit_byte (mb, CEE_PREFIX1);
9378 mono_mb_emit_byte (mb, CEE_CPBLK);
9381 /* allocate local 0 (pointer) src_ptr */
9382 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9383 /* allocate local 1 (pointer) dst_ptr */
9384 mono_mb_add_local (mb, &klass->this_arg);
9386 /* initialize src_ptr to point to the start of object data */
9387 mono_mb_emit_byte (mb, CEE_LDARG_0);
9388 mono_mb_emit_stloc (mb, 0);
9390 /* initialize dst_ptr */
9391 mono_mb_emit_byte (mb, CEE_LDARG_1);
9392 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9393 mono_mb_emit_stloc (mb, 1);
9395 emit_struct_conv (mb, klass, TRUE);
9398 mono_mb_emit_byte (mb, CEE_RET);
9400 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9401 res = mono_mb_create (mb, ptostr, 0, info);
9404 mono_marshal_lock ();
9405 if (!marshal_info->ptr_to_str)
9406 marshal_info->ptr_to_str = res;
9408 res = marshal_info->ptr_to_str;
9409 mono_marshal_unlock ();
9414 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9415 * This is used to avoid infinite recursion since it is hard to determine where to
9416 * replace a method with its synchronized wrapper, and where not.
9417 * The runtime should execute METHOD instead of the wrapper.
9420 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9422 MonoMethodBuilder *mb;
9424 MonoMethodSignature *sig;
9426 MonoGenericContext *ctx = NULL;
9427 MonoGenericContainer *container = NULL;
9429 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9430 ctx = &((MonoMethodInflated*)method)->context;
9431 method = ((MonoMethodInflated*)method)->declaring;
9432 container = mono_method_get_generic_container (method);
9434 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9435 g_assert (container);
9438 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9440 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9441 mono_mb_emit_byte (mb, CEE_RET);
9443 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9445 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9446 info->d.synchronized_inner.method = method;
9447 res = mono_mb_create (mb, sig, 0, info);
9451 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9452 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9458 * mono_marshal_get_synchronized_wrapper:
9459 * Generates IL code for the synchronized wrapper: the generated method
9460 * calls \p method while locking \c this or the parent type.
9463 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9465 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9466 MonoMethodSignature *sig;
9467 MonoExceptionClause *clause;
9468 MonoMethodBuilder *mb;
9472 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9473 MonoGenericContext *ctx = NULL;
9474 MonoMethod *orig_method = NULL;
9475 MonoGenericContainer *container = NULL;
9479 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9482 /* FIXME: Support generic methods too */
9483 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9484 orig_method = method;
9485 ctx = &((MonoMethodInflated*)method)->context;
9486 method = ((MonoMethodInflated*)method)->declaring;
9487 container = mono_method_get_generic_container (method);
9489 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9490 g_assert (container);
9497 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9498 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9502 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9503 if ((res = mono_marshal_find_in_cache (cache, method)))
9507 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9510 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9512 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9513 info->d.synchronized.method = method;
9516 mb->skip_visibility = 1;
9518 if (!MONO_TYPE_IS_VOID (sig->ret))
9519 ret_local = mono_mb_add_local (mb, sig->ret);
9522 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9523 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9524 mono_class_set_type_load_failure (method->klass, "");
9526 /* This will throw the type load exception when the wrapper is compiled */
9527 mono_mb_emit_byte (mb, CEE_LDNULL);
9528 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9529 mono_mb_emit_byte (mb, CEE_POP);
9531 if (!MONO_TYPE_IS_VOID (sig->ret))
9532 mono_mb_emit_ldloc (mb, ret_local);
9533 mono_mb_emit_byte (mb, CEE_RET);
9536 res = mono_mb_create_and_cache_full (cache, method,
9537 mb, sig, sig->param_count + 16, info, NULL);
9545 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9546 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9548 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9549 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9552 mono_marshal_lock ();
9554 if (!enter_method) {
9555 MonoMethodDesc *desc;
9557 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9558 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9559 g_assert (enter_method);
9560 mono_method_desc_free (desc);
9562 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9563 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9564 g_assert (exit_method);
9565 mono_method_desc_free (desc);
9567 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9568 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9569 g_assert (gettypefromhandle_method);
9570 mono_method_desc_free (desc);
9573 mono_marshal_unlock ();
9576 /* Push this or the type object */
9577 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9578 /* We have special handling for this in the JIT */
9579 int index = mono_mb_add_data (mb, method->klass);
9580 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9581 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9582 mono_mb_emit_i4 (mb, index);
9584 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9587 mono_mb_emit_ldarg (mb, 0);
9588 mono_mb_emit_stloc (mb, this_local);
9590 /* Call Monitor::Enter() */
9591 mono_mb_emit_ldloc (mb, this_local);
9592 mono_mb_emit_ldloc_addr (mb, taken_local);
9593 mono_mb_emit_managed_call (mb, enter_method, NULL);
9595 clause->try_offset = mono_mb_get_label (mb);
9597 /* Call the method */
9599 mono_mb_emit_ldarg (mb, 0);
9600 for (i = 0; i < sig->param_count; i++)
9601 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9605 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9606 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9608 mono_mb_emit_managed_call (mb, method, NULL);
9611 if (!MONO_TYPE_IS_VOID (sig->ret))
9612 mono_mb_emit_stloc (mb, ret_local);
9614 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9616 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9617 clause->handler_offset = mono_mb_get_label (mb);
9619 /* Call Monitor::Exit() if needed */
9620 mono_mb_emit_ldloc (mb, taken_local);
9621 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9622 mono_mb_emit_ldloc (mb, this_local);
9623 mono_mb_emit_managed_call (mb, exit_method, NULL);
9624 mono_mb_patch_branch (mb, pos2);
9625 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9627 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9629 mono_mb_patch_branch (mb, pos);
9630 if (!MONO_TYPE_IS_VOID (sig->ret))
9631 mono_mb_emit_ldloc (mb, ret_local);
9632 mono_mb_emit_byte (mb, CEE_RET);
9634 mono_mb_set_clauses (mb, 1, clause);
9639 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9640 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9642 res = mono_mb_create_and_cache_full (cache, method,
9643 mb, sig, sig->param_count + 16, info, NULL);
9652 * mono_marshal_get_unbox_wrapper:
9653 * The returned method calls \p method unboxing the \c this argument.
9656 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9658 MonoMethodSignature *sig = mono_method_signature (method);
9660 MonoMethodBuilder *mb;
9665 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9667 if ((res = mono_marshal_find_in_cache (cache, method)))
9670 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9672 g_assert (sig->hasthis);
9675 mono_mb_emit_ldarg (mb, 0);
9676 mono_mb_emit_icon (mb, sizeof (MonoObject));
9677 mono_mb_emit_byte (mb, CEE_ADD);
9678 for (i = 0; i < sig->param_count; ++i)
9679 mono_mb_emit_ldarg (mb, i + 1);
9680 mono_mb_emit_managed_call (mb, method, NULL);
9681 mono_mb_emit_byte (mb, CEE_RET);
9684 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9685 info->d.unbox.method = method;
9687 res = mono_mb_create_and_cache_full (cache, method,
9688 mb, sig, sig->param_count + 16, info, NULL);
9691 /* mono_method_print_code (res); */
9697 STELEMREF_OBJECT, /*no check at all*/
9698 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9699 STELEMREF_CLASS, /*only the klass->parents check*/
9700 STELEMREF_CLASS_SMALL_IDEPTH, /* like STELEMREF_CLASS bit without the idepth check */
9701 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9702 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9703 STELEMREF_KIND_COUNT
9706 static const char *strelemref_wrapper_name[] = {
9707 "object", "sealed_class", "class", "class_small_idepth", "interface", "complex"
9711 is_monomorphic_array (MonoClass *klass)
9713 MonoClass *element_class;
9714 if (klass->rank != 1)
9717 element_class = klass->element_class;
9718 return mono_class_is_sealed (element_class) || element_class->valuetype;
9722 get_virtual_stelemref_kind (MonoClass *element_class)
9724 if (element_class == mono_defaults.object_class)
9725 return STELEMREF_OBJECT;
9726 if (is_monomorphic_array (element_class))
9727 return STELEMREF_SEALED_CLASS;
9728 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9729 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9730 #ifdef COMPRESSED_INTERFACE_BITMAP
9731 return STELEMREF_COMPLEX;
9733 return STELEMREF_INTERFACE;
9735 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9736 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9737 return STELEMREF_COMPLEX;
9738 if (mono_class_is_sealed (element_class))
9739 return STELEMREF_SEALED_CLASS;
9740 if (element_class->idepth <= MONO_DEFAULT_SUPERTABLE_SIZE)
9741 return STELEMREF_CLASS_SMALL_IDEPTH;
9743 return STELEMREF_CLASS;
9749 load_array_element_address (MonoMethodBuilder *mb)
9751 mono_mb_emit_ldarg (mb, 0);
9752 mono_mb_emit_ldarg (mb, 1);
9753 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9757 load_array_class (MonoMethodBuilder *mb, int aklass)
9759 mono_mb_emit_ldarg (mb, 0);
9760 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9761 mono_mb_emit_byte (mb, CEE_LDIND_I);
9762 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9763 mono_mb_emit_byte (mb, CEE_LDIND_I);
9764 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9765 mono_mb_emit_byte (mb, CEE_LDIND_I);
9766 mono_mb_emit_stloc (mb, aklass);
9770 load_value_class (MonoMethodBuilder *mb, int vklass)
9772 mono_mb_emit_ldarg (mb, 2);
9773 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9774 mono_mb_emit_byte (mb, CEE_LDIND_I);
9775 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9776 mono_mb_emit_byte (mb, CEE_LDIND_I);
9777 mono_mb_emit_stloc (mb, vklass);
9783 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9785 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9786 printf ("slow vstore of %s\n", name);
9793 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9794 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9795 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9796 * - Add a case for arrays of arrays.
9799 get_virtual_stelemref_wrapper (int kind)
9801 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9802 static MonoMethodSignature *signature;
9803 MonoMethodBuilder *mb;
9806 const char *param_names [16];
9807 guint32 b1, b2, b3, b4;
9808 int aklass, vklass, vtable, uiid;
9809 int array_slot_addr;
9812 if (cached_methods [kind])
9813 return cached_methods [kind];
9815 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9816 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9820 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9822 /* void this::stelemref (size_t idx, void* value) */
9823 sig->ret = &mono_defaults.void_class->byval_arg;
9824 sig->hasthis = TRUE;
9825 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9826 sig->params [1] = &mono_defaults.object_class->byval_arg;
9831 param_names [0] = "index";
9832 param_names [1] = "value";
9833 mono_mb_set_param_names (mb, param_names);
9835 /*For now simply call plain old stelemref*/
9837 case STELEMREF_OBJECT:
9838 /* ldelema (implicit bound check) */
9839 load_array_element_address (mb);
9841 mono_mb_emit_ldarg (mb, 2);
9842 mono_mb_emit_byte (mb, CEE_STIND_REF);
9843 mono_mb_emit_byte (mb, CEE_RET);
9846 case STELEMREF_COMPLEX: {
9849 <ldelema (bound check)>
9852 if (!mono_object_isinst (value, aklass))
9856 *array_slot_addr = value;
9859 throw new ArrayTypeMismatchException ();
9862 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9863 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9864 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9868 /*Use this to debug/record stores that are going thru the slow path*/
9869 MonoMethodSignature *csig;
9870 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9871 csig->ret = &mono_defaults.void_class->byval_arg;
9872 csig->params [0] = &mono_defaults.object_class->byval_arg;
9873 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9874 csig->params [2] = &mono_defaults.object_class->byval_arg;
9875 mono_mb_emit_ldarg (mb, 0);
9876 mono_mb_emit_ldarg (mb, 1);
9877 mono_mb_emit_ldarg (mb, 2);
9878 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9882 /* ldelema (implicit bound check) */
9883 load_array_element_address (mb);
9884 mono_mb_emit_stloc (mb, array_slot_addr);
9886 /* if (!value) goto do_store */
9887 mono_mb_emit_ldarg (mb, 2);
9888 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9890 /* aklass = array->vtable->klass->element_class */
9891 load_array_class (mb, aklass);
9892 /* vklass = value->vtable->klass */
9893 load_value_class (mb, vklass);
9896 mono_mb_emit_ldloc (mb, vklass);
9897 mono_mb_emit_ldloc (mb, aklass);
9898 b_fast = mono_mb_emit_branch (mb, CEE_BEQ);
9900 /*if (mono_object_isinst (value, aklass)) */
9901 mono_mb_emit_ldarg (mb, 2);
9902 mono_mb_emit_ldloc (mb, aklass);
9903 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9904 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9907 mono_mb_patch_branch (mb, b1);
9908 mono_mb_patch_branch (mb, b_fast);
9909 mono_mb_emit_ldloc (mb, array_slot_addr);
9910 mono_mb_emit_ldarg (mb, 2);
9911 mono_mb_emit_byte (mb, CEE_STIND_REF);
9912 mono_mb_emit_byte (mb, CEE_RET);
9915 mono_mb_patch_branch (mb, b2);
9917 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9920 case STELEMREF_SEALED_CLASS:
9922 <ldelema (bound check)>
9926 aklass = array->vtable->klass->element_class;
9927 vklass = value->vtable->klass;
9929 if (vklass != aklass)
9933 *array_slot_addr = value;
9936 throw new ArrayTypeMismatchException ();
9938 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9939 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9940 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9942 /* ldelema (implicit bound check) */
9943 load_array_element_address (mb);
9944 mono_mb_emit_stloc (mb, array_slot_addr);
9946 /* if (!value) goto do_store */
9947 mono_mb_emit_ldarg (mb, 2);
9948 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9950 /* aklass = array->vtable->klass->element_class */
9951 load_array_class (mb, aklass);
9953 /* vklass = value->vtable->klass */
9954 load_value_class (mb, vklass);
9956 /*if (vklass != aklass) goto do_exception; */
9957 mono_mb_emit_ldloc (mb, aklass);
9958 mono_mb_emit_ldloc (mb, vklass);
9959 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9962 mono_mb_patch_branch (mb, b1);
9963 mono_mb_emit_ldloc (mb, array_slot_addr);
9964 mono_mb_emit_ldarg (mb, 2);
9965 mono_mb_emit_byte (mb, CEE_STIND_REF);
9966 mono_mb_emit_byte (mb, CEE_RET);
9969 mono_mb_patch_branch (mb, b2);
9970 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9973 case STELEMREF_CLASS: {
9976 <ldelema (bound check)>
9980 aklass = array->vtable->klass->element_class;
9981 vklass = value->vtable->klass;
9983 if (vklass->idepth < aklass->idepth)
9986 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9990 *array_slot_addr = value;
9994 throw new ArrayTypeMismatchException ();
9996 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9997 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9998 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10000 /* ldelema (implicit bound check) */
10001 load_array_element_address (mb);
10002 mono_mb_emit_stloc (mb, array_slot_addr);
10004 /* if (!value) goto do_store */
10005 mono_mb_emit_ldarg (mb, 2);
10006 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10008 /* aklass = array->vtable->klass->element_class */
10009 load_array_class (mb, aklass);
10011 /* vklass = value->vtable->klass */
10012 load_value_class (mb, vklass);
10014 /* if (vklass->idepth < aklass->idepth) goto failue */
10015 mono_mb_emit_ldloc (mb, vklass);
10016 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10017 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10019 mono_mb_emit_ldloc (mb, aklass);
10020 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10021 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10023 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10025 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10026 mono_mb_emit_ldloc (mb, vklass);
10027 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10028 mono_mb_emit_byte (mb, CEE_LDIND_I);
10030 mono_mb_emit_ldloc (mb, aklass);
10031 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10032 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10033 mono_mb_emit_icon (mb, 1);
10034 mono_mb_emit_byte (mb, CEE_SUB);
10035 mono_mb_emit_icon (mb, sizeof (void*));
10036 mono_mb_emit_byte (mb, CEE_MUL);
10037 mono_mb_emit_byte (mb, CEE_ADD);
10038 mono_mb_emit_byte (mb, CEE_LDIND_I);
10040 mono_mb_emit_ldloc (mb, aklass);
10041 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10044 mono_mb_patch_branch (mb, b1);
10045 mono_mb_emit_ldloc (mb, array_slot_addr);
10046 mono_mb_emit_ldarg (mb, 2);
10047 mono_mb_emit_byte (mb, CEE_STIND_REF);
10048 mono_mb_emit_byte (mb, CEE_RET);
10050 /* do_exception: */
10051 mono_mb_patch_branch (mb, b3);
10052 mono_mb_patch_branch (mb, b4);
10054 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10058 case STELEMREF_CLASS_SMALL_IDEPTH:
10061 <ldelema (bound check)>
10065 aklass = array->vtable->klass->element_class;
10066 vklass = value->vtable->klass;
10068 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10072 *array_slot_addr = value;
10076 throw new ArrayTypeMismatchException ();
10078 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10079 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10080 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10082 /* ldelema (implicit bound check) */
10083 load_array_element_address (mb);
10084 mono_mb_emit_stloc (mb, array_slot_addr);
10086 /* if (!value) goto do_store */
10087 mono_mb_emit_ldarg (mb, 2);
10088 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10090 /* aklass = array->vtable->klass->element_class */
10091 load_array_class (mb, aklass);
10093 /* vklass = value->vtable->klass */
10094 load_value_class (mb, vklass);
10096 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10097 mono_mb_emit_ldloc (mb, vklass);
10098 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10099 mono_mb_emit_byte (mb, CEE_LDIND_I);
10101 mono_mb_emit_ldloc (mb, aklass);
10102 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10103 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10104 mono_mb_emit_icon (mb, 1);
10105 mono_mb_emit_byte (mb, CEE_SUB);
10106 mono_mb_emit_icon (mb, sizeof (void*));
10107 mono_mb_emit_byte (mb, CEE_MUL);
10108 mono_mb_emit_byte (mb, CEE_ADD);
10109 mono_mb_emit_byte (mb, CEE_LDIND_I);
10111 mono_mb_emit_ldloc (mb, aklass);
10112 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10115 mono_mb_patch_branch (mb, b1);
10116 mono_mb_emit_ldloc (mb, array_slot_addr);
10117 mono_mb_emit_ldarg (mb, 2);
10118 mono_mb_emit_byte (mb, CEE_STIND_REF);
10119 mono_mb_emit_byte (mb, CEE_RET);
10121 /* do_exception: */
10122 mono_mb_patch_branch (mb, b4);
10124 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10127 case STELEMREF_INTERFACE:
10134 klass = array->obj.vtable->klass->element_class;
10135 vt = value->vtable;
10136 uiid = klass->interface_id;
10137 if (uiid > vt->max_interface_id)
10139 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10142 mono_array_setref (array, index, value);
10145 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10147 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10148 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10149 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10150 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10152 /* ldelema (implicit bound check) */
10153 load_array_element_address (mb);
10154 mono_mb_emit_stloc (mb, array_slot_addr);
10156 /* if (!value) goto do_store */
10157 mono_mb_emit_ldarg (mb, 2);
10158 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10160 /* klass = array->vtable->klass->element_class */
10161 load_array_class (mb, aklass);
10163 /* vt = value->vtable */
10164 mono_mb_emit_ldarg (mb, 2);
10165 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10166 mono_mb_emit_byte (mb, CEE_LDIND_I);
10167 mono_mb_emit_stloc (mb, vtable);
10169 /* uiid = klass->interface_id; */
10170 mono_mb_emit_ldloc (mb, aklass);
10171 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
10172 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10173 mono_mb_emit_stloc (mb, uiid);
10175 /*if (uiid > vt->max_interface_id)*/
10176 mono_mb_emit_ldloc (mb, uiid);
10177 mono_mb_emit_ldloc (mb, vtable);
10178 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
10179 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10180 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10182 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10184 /*vt->interface_bitmap*/
10185 mono_mb_emit_ldloc (mb, vtable);
10186 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10187 mono_mb_emit_byte (mb, CEE_LDIND_I);
10190 mono_mb_emit_ldloc (mb, uiid);
10191 mono_mb_emit_icon (mb, 3);
10192 mono_mb_emit_byte (mb, CEE_SHR_UN);
10194 /*vt->interface_bitmap [(uiid) >> 3]*/
10195 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10196 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10198 /*(1 << ((uiid)&7)))*/
10199 mono_mb_emit_icon (mb, 1);
10200 mono_mb_emit_ldloc (mb, uiid);
10201 mono_mb_emit_icon (mb, 7);
10202 mono_mb_emit_byte (mb, CEE_AND);
10203 mono_mb_emit_byte (mb, CEE_SHL);
10205 /*bitwise and the whole thing*/
10206 mono_mb_emit_byte (mb, CEE_AND);
10207 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10210 mono_mb_patch_branch (mb, b1);
10211 mono_mb_emit_ldloc (mb, array_slot_addr);
10212 mono_mb_emit_ldarg (mb, 2);
10213 mono_mb_emit_byte (mb, CEE_STIND_REF);
10214 mono_mb_emit_byte (mb, CEE_RET);
10216 /* do_exception: */
10217 mono_mb_patch_branch (mb, b2);
10218 mono_mb_patch_branch (mb, b3);
10219 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10223 mono_mb_emit_ldarg (mb, 0);
10224 mono_mb_emit_ldarg (mb, 1);
10225 mono_mb_emit_ldarg (mb, 2);
10226 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10227 mono_mb_emit_byte (mb, CEE_RET);
10230 #endif /* DISABLE_JIT */
10231 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10232 info->d.virtual_stelemref.kind = kind;
10233 res = mono_mb_create (mb, signature, 4, info);
10234 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10236 mono_marshal_lock ();
10237 if (!cached_methods [kind]) {
10238 cached_methods [kind] = res;
10239 mono_marshal_unlock ();
10241 mono_marshal_unlock ();
10242 mono_free_method (res);
10246 return cached_methods [kind];
10250 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10254 g_assert (array_class->rank == 1);
10255 kind = get_virtual_stelemref_kind (array_class->element_class);
10257 return get_virtual_stelemref_wrapper (kind);
10261 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10266 *nwrappers = STELEMREF_KIND_COUNT;
10267 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10268 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10269 res [i] = get_virtual_stelemref_wrapper (i);
10274 * mono_marshal_get_stelemref:
10277 mono_marshal_get_stelemref (void)
10279 static MonoMethod* ret = NULL;
10280 MonoMethodSignature *sig;
10281 MonoMethodBuilder *mb;
10284 guint32 b1, b2, b3, b4;
10286 int aklass, vklass;
10287 int array_slot_addr;
10292 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10295 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10297 /* void stelemref (void* array, int idx, void* value) */
10298 sig->ret = &mono_defaults.void_class->byval_arg;
10299 sig->params [0] = &mono_defaults.object_class->byval_arg;
10300 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10301 sig->params [2] = &mono_defaults.object_class->byval_arg;
10303 #ifndef DISABLE_JIT
10304 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10305 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10306 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10310 <ldelema (bound check)>
10314 aklass = array->vtable->klass->element_class;
10315 vklass = value->vtable->klass;
10317 if (vklass->idepth < aklass->idepth)
10320 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10324 *array_slot_addr = value;
10328 if (mono_object_isinst (value, aklass))
10331 throw new ArrayTypeMismatchException ();
10334 /* ldelema (implicit bound check) */
10335 mono_mb_emit_ldarg (mb, 0);
10336 mono_mb_emit_ldarg (mb, 1);
10337 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10338 mono_mb_emit_stloc (mb, array_slot_addr);
10340 /* if (!value) goto do_store */
10341 mono_mb_emit_ldarg (mb, 2);
10342 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10344 /* aklass = array->vtable->klass->element_class */
10345 mono_mb_emit_ldarg (mb, 0);
10346 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10347 mono_mb_emit_byte (mb, CEE_LDIND_I);
10348 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10349 mono_mb_emit_byte (mb, CEE_LDIND_I);
10350 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10351 mono_mb_emit_byte (mb, CEE_LDIND_I);
10352 mono_mb_emit_stloc (mb, aklass);
10354 /* vklass = value->vtable->klass */
10355 mono_mb_emit_ldarg (mb, 2);
10356 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10357 mono_mb_emit_byte (mb, CEE_LDIND_I);
10358 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10359 mono_mb_emit_byte (mb, CEE_LDIND_I);
10360 mono_mb_emit_stloc (mb, vklass);
10362 /* if (vklass->idepth < aklass->idepth) goto failue */
10363 mono_mb_emit_ldloc (mb, vklass);
10364 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10365 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10367 mono_mb_emit_ldloc (mb, aklass);
10368 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10369 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10371 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10373 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10374 mono_mb_emit_ldloc (mb, vklass);
10375 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10376 mono_mb_emit_byte (mb, CEE_LDIND_I);
10378 mono_mb_emit_ldloc (mb, aklass);
10379 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10380 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10381 mono_mb_emit_icon (mb, 1);
10382 mono_mb_emit_byte (mb, CEE_SUB);
10383 mono_mb_emit_icon (mb, sizeof (void*));
10384 mono_mb_emit_byte (mb, CEE_MUL);
10385 mono_mb_emit_byte (mb, CEE_ADD);
10386 mono_mb_emit_byte (mb, CEE_LDIND_I);
10388 mono_mb_emit_ldloc (mb, aklass);
10390 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10392 copy_pos = mono_mb_get_label (mb);
10394 mono_mb_patch_branch (mb, b1);
10395 mono_mb_emit_ldloc (mb, array_slot_addr);
10396 mono_mb_emit_ldarg (mb, 2);
10397 mono_mb_emit_byte (mb, CEE_STIND_REF);
10399 mono_mb_emit_byte (mb, CEE_RET);
10402 mono_mb_patch_branch (mb, b2);
10403 mono_mb_patch_branch (mb, b3);
10405 mono_mb_emit_ldarg (mb, 2);
10406 mono_mb_emit_ldloc (mb, aklass);
10407 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10409 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10410 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10411 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10413 mono_mb_emit_byte (mb, CEE_RET);
10415 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10416 ret = mono_mb_create (mb, sig, 4, info);
10423 * mono_marshal_get_gsharedvt_in_wrapper:
10425 * This wrapper handles calls from normal code to gsharedvt code.
10428 mono_marshal_get_gsharedvt_in_wrapper (void)
10430 static MonoMethod* ret = NULL;
10431 MonoMethodSignature *sig;
10432 MonoMethodBuilder *mb;
10438 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10440 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10441 sig->ret = &mono_defaults.void_class->byval_arg;
10443 #ifndef DISABLE_JIT
10445 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10447 mono_mb_emit_byte (mb, CEE_RET);
10449 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10450 ret = mono_mb_create (mb, sig, 4, info);
10457 * mono_marshal_get_gsharedvt_out_wrapper:
10459 * This wrapper handles calls from gsharedvt code to normal code.
10462 mono_marshal_get_gsharedvt_out_wrapper (void)
10464 static MonoMethod* ret = NULL;
10465 MonoMethodSignature *sig;
10466 MonoMethodBuilder *mb;
10472 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10474 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10475 sig->ret = &mono_defaults.void_class->byval_arg;
10477 #ifndef DISABLE_JIT
10479 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10481 mono_mb_emit_byte (mb, CEE_RET);
10483 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10484 ret = mono_mb_create (mb, sig, 4, info);
10493 MonoMethod *method;
10496 /* LOCKING: vars accessed under the marshal lock */
10497 static ArrayElemAddr *elem_addr_cache = NULL;
10498 static int elem_addr_cache_size = 0;
10499 static int elem_addr_cache_next = 0;
10502 * mono_marshal_get_array_address:
10503 * \param rank rank of the array type
10504 * \param elem_size size in bytes of an element of an array.
10506 * Returns a MonoMethod that implements the code to get the address
10507 * of an element in a multi-dimenasional array of \p rank dimensions.
10508 * The returned method takes an array as the first argument and then
10509 * \p rank indexes for the \p rank dimensions.
10510 * If ELEM_SIZE is 0, read the array size from the array object.
10513 mono_marshal_get_array_address (int rank, int elem_size)
10516 MonoMethodBuilder *mb;
10517 MonoMethodSignature *sig;
10520 int i, bounds, ind, realidx;
10521 int branch_pos, *branch_positions;
10525 mono_marshal_lock ();
10526 for (i = 0; i < elem_addr_cache_next; ++i) {
10527 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10528 ret = elem_addr_cache [i].method;
10532 mono_marshal_unlock ();
10536 branch_positions = g_new0 (int, rank);
10538 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10540 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10541 sig->ret = &mono_defaults.int_class->byval_arg;
10542 sig->params [0] = &mono_defaults.object_class->byval_arg;
10543 for (i = 0; i < rank; ++i) {
10544 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10547 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10548 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10551 #ifndef DISABLE_JIT
10552 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10553 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10554 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10556 /* bounds = array->bounds; */
10557 mono_mb_emit_ldarg (mb, 0);
10558 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10559 mono_mb_emit_byte (mb, CEE_LDIND_I);
10560 mono_mb_emit_stloc (mb, bounds);
10562 /* ind is the overall element index, realidx is the partial index in a single dimension */
10563 /* ind = idx0 - bounds [0].lower_bound */
10564 mono_mb_emit_ldarg (mb, 1);
10565 mono_mb_emit_ldloc (mb, bounds);
10566 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10567 mono_mb_emit_byte (mb, CEE_ADD);
10568 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10569 mono_mb_emit_byte (mb, CEE_SUB);
10570 mono_mb_emit_stloc (mb, ind);
10571 /* if (ind >= bounds [0].length) goto exeception; */
10572 mono_mb_emit_ldloc (mb, ind);
10573 mono_mb_emit_ldloc (mb, bounds);
10574 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10575 mono_mb_emit_byte (mb, CEE_ADD);
10576 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10577 /* note that we use unsigned comparison */
10578 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10580 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10581 * We could also decide to ignore the passed elem_size and get it
10582 * from the array object, to reduce the number of methods we generate:
10583 * the additional cost is 3 memory loads and a non-immediate mul.
10585 for (i = 1; i < rank; ++i) {
10586 /* realidx = idxi - bounds [i].lower_bound */
10587 mono_mb_emit_ldarg (mb, 1 + i);
10588 mono_mb_emit_ldloc (mb, bounds);
10589 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10590 mono_mb_emit_byte (mb, CEE_ADD);
10591 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10592 mono_mb_emit_byte (mb, CEE_SUB);
10593 mono_mb_emit_stloc (mb, realidx);
10594 /* if (realidx >= bounds [i].length) goto exeception; */
10595 mono_mb_emit_ldloc (mb, realidx);
10596 mono_mb_emit_ldloc (mb, bounds);
10597 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10598 mono_mb_emit_byte (mb, CEE_ADD);
10599 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10600 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10601 /* ind = ind * bounds [i].length + realidx */
10602 mono_mb_emit_ldloc (mb, ind);
10603 mono_mb_emit_ldloc (mb, bounds);
10604 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10605 mono_mb_emit_byte (mb, CEE_ADD);
10606 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10607 mono_mb_emit_byte (mb, CEE_MUL);
10608 mono_mb_emit_ldloc (mb, realidx);
10609 mono_mb_emit_byte (mb, CEE_ADD);
10610 mono_mb_emit_stloc (mb, ind);
10613 /* return array->vector + ind * element_size */
10614 mono_mb_emit_ldarg (mb, 0);
10615 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10616 mono_mb_emit_ldloc (mb, ind);
10618 mono_mb_emit_icon (mb, elem_size);
10620 /* Load arr->vtable->klass->sizes.element_class */
10621 mono_mb_emit_ldarg (mb, 0);
10622 mono_mb_emit_byte (mb, CEE_CONV_I);
10623 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10624 mono_mb_emit_byte (mb, CEE_ADD);
10625 mono_mb_emit_byte (mb, CEE_LDIND_I);
10626 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10627 mono_mb_emit_byte (mb, CEE_ADD);
10628 mono_mb_emit_byte (mb, CEE_LDIND_I);
10629 /* sizes is an union, so this reads sizes.element_size */
10630 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10631 mono_mb_emit_byte (mb, CEE_ADD);
10632 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10634 mono_mb_emit_byte (mb, CEE_MUL);
10635 mono_mb_emit_byte (mb, CEE_ADD);
10636 mono_mb_emit_byte (mb, CEE_RET);
10638 /* patch the branches to get here and throw */
10639 for (i = 1; i < rank; ++i) {
10640 mono_mb_patch_branch (mb, branch_positions [i]);
10642 mono_mb_patch_branch (mb, branch_pos);
10643 /* throw exception */
10644 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10646 g_free (branch_positions);
10647 #endif /* DISABLE_JIT */
10649 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10650 info->d.element_addr.rank = rank;
10651 info->d.element_addr.elem_size = elem_size;
10652 ret = mono_mb_create (mb, sig, 4, info);
10655 /* cache the result */
10657 mono_marshal_lock ();
10658 for (i = 0; i < elem_addr_cache_next; ++i) {
10659 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10660 /* FIXME: free ret */
10661 ret = elem_addr_cache [i].method;
10667 if (elem_addr_cache_next >= elem_addr_cache_size) {
10668 int new_size = elem_addr_cache_size + 4;
10669 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10670 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10671 g_free (elem_addr_cache);
10672 elem_addr_cache = new_array;
10673 elem_addr_cache_size = new_size;
10675 elem_addr_cache [elem_addr_cache_next].rank = rank;
10676 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10677 elem_addr_cache [elem_addr_cache_next].method = ret;
10678 elem_addr_cache_next ++;
10680 mono_marshal_unlock ();
10685 * mono_marshal_get_array_accessor_wrapper:
10687 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10690 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10692 MonoMethodSignature *sig;
10693 MonoMethodBuilder *mb;
10697 MonoGenericContext *ctx = NULL;
10698 MonoMethod *orig_method = NULL;
10699 MonoGenericContainer *container = NULL;
10703 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10704 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10705 * FIXME: Use generic methods.
10712 g_assert_not_reached ();
10714 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10715 if ((res = mono_marshal_find_in_cache (cache, method)))
10719 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10722 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10724 #ifndef DISABLE_JIT
10725 /* Call the method */
10727 mono_mb_emit_ldarg (mb, 0);
10728 for (i = 0; i < sig->param_count; i++)
10729 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10733 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10734 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10736 mono_mb_emit_managed_call (mb, method, NULL);
10738 mono_mb_emit_byte (mb, CEE_RET);
10741 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10742 info->d.array_accessor.method = method;
10746 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10747 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10749 res = mono_mb_create_and_cache_full (cache, method,
10750 mb, sig, sig->param_count + 16,
10759 static inline void*
10760 mono_marshal_alloc_co_task_mem (size_t size)
10762 if ((gulong)size == 0)
10763 /* This returns a valid pointer for size 0 on MS.NET */
10766 return g_try_malloc ((gulong)size);
10771 * mono_marshal_alloc:
10774 mono_marshal_alloc (gsize size, MonoError *error)
10778 error_init (error);
10780 res = mono_marshal_alloc_co_task_mem (size);
10782 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10787 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10789 ves_icall_marshal_alloc (gsize size)
10792 void *ret = mono_marshal_alloc (size, &error);
10793 if (!mono_error_ok (&error)) {
10794 mono_error_set_pending_exception (&error);
10803 mono_marshal_free_co_task_mem (void *ptr)
10811 * mono_marshal_free:
10814 mono_marshal_free (gpointer ptr)
10816 mono_marshal_free_co_task_mem (ptr);
10820 * mono_marshal_free_array:
10823 mono_marshal_free_array (gpointer *ptr, int size)
10830 for (i = 0; i < size; i++)
10836 mono_marshal_string_to_utf16 (MonoString *s)
10838 return s ? mono_string_chars (s) : NULL;
10841 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10843 mono_marshal_string_to_utf16_copy (MonoString *s)
10849 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10850 if (!mono_error_ok (&error)) {
10851 mono_error_set_pending_exception (&error);
10854 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10855 res [mono_string_length (s)] = 0;
10861 * mono_marshal_set_last_error:
10863 * This function is invoked to set the last error value from a P/Invoke call
10864 * which has \c SetLastError set.
10867 mono_marshal_set_last_error (void)
10870 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10872 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10877 mono_marshal_set_last_error_windows (int error)
10880 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10885 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10886 gpointer dest, gint32 length)
10891 MONO_CHECK_ARG_NULL (src,);
10892 MONO_CHECK_ARG_NULL (dest,);
10894 if (src->obj.vtable->klass->rank != 1) {
10895 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10898 if (start_index < 0) {
10899 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10903 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10906 if (start_index + length > mono_array_length (src)) {
10907 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10911 element_size = mono_array_element_size (src->obj.vtable->klass);
10913 /* no references should be involved */
10914 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10916 memcpy (dest, source_addr, length * element_size);
10920 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10921 MonoArray *dest, gint32 length)
10926 MONO_CHECK_ARG_NULL (src,);
10927 MONO_CHECK_ARG_NULL (dest,);
10929 if (dest->obj.vtable->klass->rank != 1) {
10930 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10933 if (start_index < 0) {
10934 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10938 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10941 if (start_index + length > mono_array_length (dest)) {
10942 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10945 element_size = mono_array_element_size (dest->obj.vtable->klass);
10947 /* no references should be involved */
10948 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10950 memcpy (dest_addr, src, length * element_size);
10954 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr, MonoError *error)
10956 error_init (error);
10958 return MONO_HANDLE_CAST (MonoString, NULL_HANDLE);
10960 return mono_string_new_handle (mono_domain_get (), ptr, error);
10964 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10967 MonoString *result = NULL;
10968 error_init (&error);
10970 mono_error_set_argument_null (&error, "ptr", "");
10972 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10973 mono_error_set_pending_exception (&error);
10978 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10981 MonoString *res = NULL;
10982 MonoDomain *domain = mono_domain_get ();
10992 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10993 if (!mono_error_ok (&error)) {
10994 mono_error_set_pending_exception (&error);
11001 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
11004 MonoString *res = NULL;
11005 MonoDomain *domain = mono_domain_get ();
11007 error_init (&error);
11011 mono_error_set_argument_null (&error, "ptr", "");
11013 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
11016 if (!mono_error_ok (&error))
11017 mono_error_set_pending_exception (&error);
11022 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
11024 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
11028 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
11034 MONO_CHECK_ARG_NULL (rtype, 0);
11036 type = rtype->type;
11037 klass = mono_class_from_mono_type (type);
11038 if (!mono_class_init (klass)) {
11039 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11043 layout = (mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK);
11045 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
11046 return sizeof (gpointer);
11047 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11049 MonoException *exc;
11051 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
11052 exc = mono_get_exception_argument ("t", msg);
11054 mono_set_pending_exception (exc);
11058 return mono_class_native_size (klass, NULL);
11062 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
11065 MonoMethod *method;
11068 MONO_CHECK_ARG_NULL (obj,);
11069 MONO_CHECK_ARG_NULL (dst,);
11071 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
11075 pa [2] = &delete_old;
11077 mono_runtime_invoke_checked (method, NULL, pa, &error);
11078 if (!mono_error_ok (&error))
11079 mono_error_set_pending_exception (&error);
11083 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
11085 MonoMethod *method;
11088 error_init (error);
11090 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
11095 mono_runtime_invoke_checked (method, NULL, pa, error);
11099 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
11104 MONO_CHECK_ARG_NULL (src,);
11105 MONO_CHECK_ARG_NULL (dst,);
11107 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
11109 if (t->type == MONO_TYPE_VALUETYPE) {
11110 MonoException *exc;
11113 tmp = g_strdup_printf ("Destination is a boxed value type.");
11114 exc = mono_get_exception_argument ("dst", tmp);
11117 mono_set_pending_exception (exc);
11121 ptr_to_structure (src, dst, &error);
11122 if (!mono_error_ok (&error))
11123 mono_error_set_pending_exception (&error);
11127 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
11131 MonoDomain *domain = mono_domain_get ();
11136 MONO_CHECK_ARG_NULL (type, NULL);
11138 klass = mono_class_from_mono_type (type->type);
11139 if (!mono_class_init (klass)) {
11140 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11144 res = mono_object_new_checked (domain, klass, &error);
11145 if (!mono_error_ok (&error)) {
11146 mono_error_set_pending_exception (&error);
11150 ptr_to_structure (src, res, &error);
11151 if (!mono_error_ok (&error)) {
11152 mono_error_set_pending_exception (&error);
11160 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
11163 MonoMarshalType *info;
11166 int match_index = -1;
11168 MONO_CHECK_ARG_NULL (type, 0);
11169 MONO_CHECK_ARG_NULL (field_name, 0);
11171 fname = mono_string_to_utf8_checked (field_name, &error);
11172 if (mono_error_set_pending_exception (&error))
11174 klass = mono_class_from_mono_type (type->type);
11175 if (!mono_class_init (klass)) {
11176 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11180 while (klass && match_index == -1) {
11181 MonoClassField* field;
11183 gpointer iter = NULL;
11184 while ((field = mono_class_get_fields (klass, &iter))) {
11185 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11187 if (!strcmp (fname, mono_field_get_name (field))) {
11194 if (match_index == -1)
11195 klass = klass->parent;
11200 if(match_index == -1) {
11201 MonoException* exc;
11204 /* Get back original class instance */
11205 klass = mono_class_from_mono_type (type->type);
11207 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
11208 exc = mono_get_exception_argument ("fieldName", tmp);
11211 mono_set_pending_exception ((MonoException*)exc);
11215 info = mono_marshal_load_type_info (klass);
11216 return info->fields [match_index].offset;
11221 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11224 char *ret = mono_string_to_utf8_checked (string, &error);
11225 mono_error_set_pending_exception (&error);
11230 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11232 if (string == NULL)
11235 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
11237 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11238 res [mono_string_length (string)] = 0;
11242 #endif /* !HOST_WIN32 */
11245 mono_struct_delete_old (MonoClass *klass, char *ptr)
11247 MonoMarshalType *info;
11250 info = mono_marshal_load_type_info (klass);
11252 for (i = 0; i < info->num_fields; i++) {
11253 MonoMarshalConv conv;
11254 MonoType *ftype = info->fields [i].field->type;
11257 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11260 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11261 klass->unicode, &conv);
11263 cpos = ptr + info->fields [i].offset;
11266 case MONO_MARSHAL_CONV_NONE:
11267 if (MONO_TYPE_ISSTRUCT (ftype)) {
11268 mono_struct_delete_old (ftype->data.klass, cpos);
11272 case MONO_MARSHAL_CONV_STR_LPWSTR:
11273 /* We assume this field points inside a MonoString */
11275 case MONO_MARSHAL_CONV_STR_LPTSTR:
11276 #ifdef TARGET_WIN32
11277 /* We assume this field points inside a MonoString
11281 case MONO_MARSHAL_CONV_STR_LPSTR:
11282 case MONO_MARSHAL_CONV_STR_BSTR:
11283 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11284 case MONO_MARSHAL_CONV_STR_TBSTR:
11285 case MONO_MARSHAL_CONV_STR_UTF8STR:
11286 mono_marshal_free (*(gpointer *)cpos);
11296 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11300 MONO_CHECK_ARG_NULL (src,);
11301 MONO_CHECK_ARG_NULL (type,);
11303 klass = mono_class_from_mono_type (type->type);
11304 if (!mono_class_init (klass)) {
11305 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11309 mono_struct_delete_old (klass, (char *)src);
11313 static inline void *
11314 mono_marshal_alloc_hglobal (size_t size)
11316 return g_try_malloc (size);
11321 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11324 size_t s = (size_t)size;
11327 /* This returns a valid pointer for size 0 on MS.NET */
11330 res = mono_marshal_alloc_hglobal (s);
11333 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11341 static inline gpointer
11342 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11344 return g_try_realloc (ptr, size);
11349 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11352 size_t s = (size_t)size;
11355 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11359 res = mono_marshal_realloc_hglobal (ptr, s);
11362 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11371 mono_marshal_free_hglobal (gpointer ptr)
11379 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11381 mono_marshal_free_hglobal (ptr);
11385 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11387 void *res = mono_marshal_alloc_co_task_mem (size);
11390 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11397 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11399 void *res = mono_marshal_alloc_co_task_mem (size);
11402 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11409 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11411 mono_marshal_free_co_task_mem (ptr);
11416 static inline gpointer
11417 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11419 return g_try_realloc (ptr, (gulong)size);
11424 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11426 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11429 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11436 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11438 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11442 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11444 MonoClass *klass = mono_type_get_class (type->type);
11445 if (!mono_class_init (klass)) {
11446 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11450 return mono_ftnptr_to_delegate (klass, ftn);
11454 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11456 return mono_delegate_to_ftnptr (delegate);
11460 * mono_marshal_is_loading_type_info:
11462 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11466 mono_marshal_is_loading_type_info (MonoClass *klass)
11468 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11470 return g_slist_find (loads_list, klass) != NULL;
11474 * mono_marshal_load_type_info:
11476 * Initialize \c klass::marshal_info using information from metadata. This function can
11477 * recursively call itself, and the caller is responsible to avoid that by calling
11478 * \c mono_marshal_is_loading_type_info beforehand.
11480 * LOCKING: Acquires the loader lock.
11483 mono_marshal_load_type_info (MonoClass* klass)
11486 guint32 native_size = 0, min_align = 1, packing;
11487 MonoMarshalType *info;
11488 MonoClassField* field;
11491 GSList *loads_list;
11493 g_assert (klass != NULL);
11495 info = mono_class_get_marshal_info (klass);
11499 if (!klass->inited)
11500 mono_class_init (klass);
11502 info = mono_class_get_marshal_info (klass);
11507 * This function can recursively call itself, so we keep the list of classes which are
11508 * under initialization in a TLS list.
11510 g_assert (!mono_marshal_is_loading_type_info (klass));
11511 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11512 loads_list = g_slist_prepend (loads_list, klass);
11513 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11516 while ((field = mono_class_get_fields (klass, &iter))) {
11517 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11519 if (mono_field_is_deleted (field))
11524 layout = mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK;
11526 /* The mempool is protected by the loader lock */
11527 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11528 info->num_fields = count;
11530 /* Try to find a size for this type in metadata */
11531 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11533 if (klass->parent) {
11534 int parent_size = mono_class_native_size (klass->parent, NULL);
11536 /* Add parent size to real size */
11537 native_size += parent_size;
11538 info->native_size = parent_size;
11541 packing = klass->packing_size ? klass->packing_size : 8;
11544 while ((field = mono_class_get_fields (klass, &iter))) {
11548 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11551 if (mono_field_is_deleted (field))
11553 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11554 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11555 NULL, NULL, &info->fields [j].mspec);
11557 info->fields [j].field = field;
11559 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11560 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11561 /* This field is a hack inserted by MCS to empty structures */
11566 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11567 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11568 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11569 &align, TRUE, klass->unicode);
11570 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11571 min_align = MAX (align, min_align);
11572 info->fields [j].offset = info->native_size;
11573 info->fields [j].offset += align - 1;
11574 info->fields [j].offset &= ~(align - 1);
11575 info->native_size = info->fields [j].offset + size;
11577 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11578 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11579 &align, TRUE, klass->unicode);
11580 min_align = MAX (align, min_align);
11581 info->fields [j].offset = field->offset - sizeof (MonoObject);
11582 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11588 if (klass->byval_arg.type == MONO_TYPE_PTR)
11589 info->native_size = sizeof (gpointer);
11591 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11592 info->native_size = MAX (native_size, info->native_size);
11594 * If the provided Size is equal or larger than the calculated size, and there
11595 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11597 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11598 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11601 min_align = MIN (min_align, packing);
11605 if (info->native_size & (min_align - 1)) {
11606 info->native_size += min_align - 1;
11607 info->native_size &= ~(min_align - 1);
11610 info->min_align = min_align;
11612 /* Update the class's blittable info, if the layouts don't match */
11613 if (info->native_size != mono_class_value_size (klass, NULL))
11614 klass->blittable = FALSE;
11616 /* If this is an array type, ensure that we have element info */
11617 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11618 mono_marshal_load_type_info (klass->element_class);
11621 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11622 loads_list = g_slist_remove (loads_list, klass);
11623 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11625 mono_marshal_lock ();
11626 MonoMarshalType *info2 = mono_class_get_marshal_info (klass);
11628 /*We do double-checking locking on marshal_info */
11629 mono_memory_barrier ();
11630 mono_class_set_marshal_info (klass, info);
11631 ++class_marshal_info_count;
11634 mono_marshal_unlock ();
11640 * mono_class_native_size:
11641 * \param klass a class
11642 * \returns the native size of an object instance (when marshaled
11643 * to unmanaged code)
11646 mono_class_native_size (MonoClass *klass, guint32 *align)
11648 MonoMarshalType *info = mono_class_get_marshal_info (klass);
11650 if (mono_marshal_is_loading_type_info (klass)) {
11655 mono_marshal_load_type_info (klass);
11657 info = mono_class_get_marshal_info (klass);
11661 *align = info->min_align;
11663 return info->native_size;
11667 * mono_type_native_stack_size:
11668 * @t: the type to return the size it uses on the stack
11670 * Returns: the number of bytes required to hold an instance of this
11671 * type on the native stack
11674 mono_type_native_stack_size (MonoType *t, guint32 *align)
11678 g_assert (t != NULL);
11684 *align = sizeof (gpointer);
11685 return sizeof (gpointer);
11689 case MONO_TYPE_BOOLEAN:
11690 case MONO_TYPE_CHAR:
11701 case MONO_TYPE_STRING:
11702 case MONO_TYPE_OBJECT:
11703 case MONO_TYPE_CLASS:
11704 case MONO_TYPE_SZARRAY:
11705 case MONO_TYPE_PTR:
11706 case MONO_TYPE_FNPTR:
11707 case MONO_TYPE_ARRAY:
11708 *align = sizeof (gpointer);
11709 return sizeof (gpointer);
11714 *align = MONO_ABI_ALIGNOF (double);
11718 *align = MONO_ABI_ALIGNOF (gint64);
11720 case MONO_TYPE_GENERICINST:
11721 if (!mono_type_generic_inst_is_valuetype (t)) {
11722 *align = sizeof (gpointer);
11723 return sizeof (gpointer);
11726 case MONO_TYPE_TYPEDBYREF:
11727 case MONO_TYPE_VALUETYPE: {
11729 MonoClass *klass = mono_class_from_mono_type (t);
11731 if (klass->enumtype)
11732 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11734 size = mono_class_native_size (klass, align);
11735 *align = *align + 3;
11745 g_error ("type 0x%02x unknown", t->type);
11751 * mono_marshal_type_size:
11754 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11755 gboolean as_field, gboolean unicode)
11757 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11760 switch (native_type) {
11761 case MONO_NATIVE_BOOLEAN:
11764 case MONO_NATIVE_I1:
11765 case MONO_NATIVE_U1:
11768 case MONO_NATIVE_I2:
11769 case MONO_NATIVE_U2:
11770 case MONO_NATIVE_VARIANTBOOL:
11773 case MONO_NATIVE_I4:
11774 case MONO_NATIVE_U4:
11775 case MONO_NATIVE_ERROR:
11778 case MONO_NATIVE_I8:
11779 case MONO_NATIVE_U8:
11780 *align = MONO_ABI_ALIGNOF (gint64);
11782 case MONO_NATIVE_R4:
11785 case MONO_NATIVE_R8:
11786 *align = MONO_ABI_ALIGNOF (double);
11788 case MONO_NATIVE_INT:
11789 case MONO_NATIVE_UINT:
11790 case MONO_NATIVE_LPSTR:
11791 case MONO_NATIVE_LPWSTR:
11792 case MONO_NATIVE_LPTSTR:
11793 case MONO_NATIVE_BSTR:
11794 case MONO_NATIVE_ANSIBSTR:
11795 case MONO_NATIVE_TBSTR:
11796 case MONO_NATIVE_UTF8STR:
11797 case MONO_NATIVE_LPARRAY:
11798 case MONO_NATIVE_SAFEARRAY:
11799 case MONO_NATIVE_IUNKNOWN:
11800 case MONO_NATIVE_IDISPATCH:
11801 case MONO_NATIVE_INTERFACE:
11802 case MONO_NATIVE_ASANY:
11803 case MONO_NATIVE_FUNC:
11804 case MONO_NATIVE_LPSTRUCT:
11805 *align = MONO_ABI_ALIGNOF (gpointer);
11806 return sizeof (gpointer);
11807 case MONO_NATIVE_STRUCT:
11808 klass = mono_class_from_mono_type (type);
11809 if (klass == mono_defaults.object_class &&
11810 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11814 return mono_class_native_size (klass, align);
11815 case MONO_NATIVE_BYVALTSTR: {
11816 int esize = unicode ? 2: 1;
11819 return mspec->data.array_data.num_elem * esize;
11821 case MONO_NATIVE_BYVALARRAY: {
11822 // FIXME: Have to consider ArraySubType
11824 klass = mono_class_from_mono_type (type);
11825 if (klass->element_class == mono_defaults.char_class) {
11826 esize = unicode ? 2 : 1;
11829 esize = mono_class_native_size (klass->element_class, align);
11832 return mspec->data.array_data.num_elem * esize;
11834 case MONO_NATIVE_CUSTOM:
11835 *align = sizeof (gpointer);
11836 return sizeof (gpointer);
11838 case MONO_NATIVE_CURRENCY:
11839 case MONO_NATIVE_VBBYREFSTR:
11841 g_error ("native type %02x not implemented", native_type);
11844 g_assert_not_reached ();
11849 * mono_marshal_asany:
11850 * This is a JIT icall, it sets the pending exception and returns NULL on error.
11853 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11862 t = &o->vtable->klass->byval_arg;
11866 case MONO_TYPE_PTR:
11869 case MONO_TYPE_BOOLEAN:
11872 case MONO_TYPE_CHAR:
11877 return mono_object_unbox (o);
11879 case MONO_TYPE_STRING:
11880 switch (string_encoding) {
11881 case MONO_NATIVE_LPWSTR:
11882 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11883 case MONO_NATIVE_LPSTR:
11884 case MONO_NATIVE_UTF8STR:
11885 // Same code path, because in Mono, we treated strings as Utf8
11886 return mono_string_to_utf8str ((MonoString*)o);
11888 g_warning ("marshaling conversion %d not implemented", string_encoding);
11889 g_assert_not_reached ();
11892 case MONO_TYPE_CLASS:
11893 case MONO_TYPE_VALUETYPE: {
11894 MonoMethod *method;
11897 MonoBoolean delete_old = FALSE;
11899 klass = t->data.klass;
11901 if (mono_class_is_auto_layout (klass))
11904 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11905 return mono_object_unbox (o);
11907 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11908 if (!mono_error_ok (&error)) {
11909 mono_error_set_pending_exception (&error);
11913 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11914 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11918 pa [2] = &delete_old;
11920 mono_runtime_invoke_checked (method, NULL, pa, &error);
11921 if (!mono_error_ok (&error)) {
11922 mono_error_set_pending_exception (&error);
11932 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11937 * mono_marshal_free_asany:
11938 * This is a JIT icall, it sets the pending exception
11941 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11950 t = &o->vtable->klass->byval_arg;
11952 case MONO_TYPE_STRING:
11953 switch (string_encoding) {
11954 case MONO_NATIVE_LPWSTR:
11955 case MONO_NATIVE_LPSTR:
11956 case MONO_NATIVE_UTF8STR:
11957 mono_marshal_free (ptr);
11960 g_warning ("marshaling conversion %d not implemented", string_encoding);
11961 g_assert_not_reached ();
11964 case MONO_TYPE_CLASS:
11965 case MONO_TYPE_VALUETYPE: {
11966 klass = t->data.klass;
11968 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11971 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11972 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11978 mono_runtime_invoke_checked (method, NULL, pa, &error);
11979 if (!mono_error_ok (&error)) {
11980 mono_error_set_pending_exception (&error);
11985 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11986 mono_struct_delete_old (klass, (char *)ptr);
11989 mono_marshal_free (ptr);
11998 * mono_marshal_get_generic_array_helper:
12000 * Return a wrapper which is used to implement the implicit interfaces on arrays.
12001 * The wrapper routes calls to METHOD, which is one of the InternalArray_ methods in Array.
12004 mono_marshal_get_generic_array_helper (MonoClass *klass, gchar *name, MonoMethod *method)
12006 MonoMethodSignature *sig, *csig;
12007 MonoMethodBuilder *mb;
12012 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
12013 mb->method->slot = -1;
12015 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
12016 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
12018 sig = mono_method_signature (method);
12019 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
12020 csig->generic_param_count = 0;
12022 #ifndef DISABLE_JIT
12023 mono_mb_emit_ldarg (mb, 0);
12024 for (i = 0; i < csig->param_count; i++)
12025 mono_mb_emit_ldarg (mb, i + 1);
12026 mono_mb_emit_managed_call (mb, method, NULL);
12027 mono_mb_emit_byte (mb, CEE_RET);
12029 /* We can corlib internal methods */
12030 mb->skip_visibility = TRUE;
12032 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
12033 info->d.generic_array_helper.method = method;
12034 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
12042 * The mono_win32_compat_* functions are implementations of inline
12043 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
12044 * although not exported by kernel32.
12046 * We map the appropiate kernel32 entries to these functions using
12047 * dllmaps declared in the global etc/mono/config.
12051 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
12053 if (!dest || !source)
12056 memcpy (dest, source, length);
12060 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
12062 memset (dest, fill, length);
12066 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
12068 if (!dest || !source)
12071 memmove (dest, source, length);
12075 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
12077 memset (dest, 0, length);
12081 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12086 for (i = 0; i < len; ++i)
12090 g_assert (i < len);
12093 while (byte && !(byte & 1))
12095 g_assert (byte == 1);
12098 *bitmask = buf [i];
12102 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12104 MonoMethodBuilder *mb;
12105 MonoMethodSignature *sig, *csig;
12106 MonoExceptionClause *clause;
12111 int i, param_count, sig_size, pos_leave;
12115 // FIXME: we need to store the exception into a MonoHandle
12116 g_assert (!mono_threads_is_coop_enabled ());
12118 klass = method->klass;
12119 image = method->klass->image;
12121 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12123 if ((res = mono_marshal_find_in_cache (cache, method)))
12126 sig = mono_method_signature (method);
12127 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12129 /* add "this" and exception param */
12130 param_count = sig->param_count + sig->hasthis + 1;
12132 /* dup & extend signature */
12133 csig = mono_metadata_signature_alloc (image, param_count);
12134 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
12135 memcpy (csig, sig, sig_size);
12136 csig->param_count = param_count;
12139 csig->call_convention = MONO_CALL_DEFAULT;
12141 if (sig->hasthis) {
12143 csig->params [0] = &klass->byval_arg;
12144 /* move params up by one */
12145 for (i = 0; i < sig->param_count; i++)
12146 csig->params [i + 1] = sig->params [i];
12149 /* setup exception param as byref+[out] */
12150 csig->params [param_count - 1] = mono_metadata_type_dup (image,
12151 &mono_defaults.exception_class->byval_arg);
12152 csig->params [param_count - 1]->byref = 1;
12153 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12155 /* convert struct return to object */
12156 if (MONO_TYPE_ISSTRUCT (sig->ret))
12157 csig->ret = &mono_defaults.object_class->byval_arg;
12159 #ifndef DISABLE_JIT
12160 /* local 0 (temp for exception object) */
12161 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12163 /* local 1 (temp for result) */
12164 if (!MONO_TYPE_IS_VOID (sig->ret))
12165 mono_mb_add_local (mb, sig->ret);
12167 /* clear exception arg */
12168 mono_mb_emit_ldarg (mb, param_count - 1);
12169 mono_mb_emit_byte (mb, CEE_LDNULL);
12170 mono_mb_emit_byte (mb, CEE_STIND_REF);
12173 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12174 clause->try_offset = mono_mb_get_label (mb);
12176 /* push method's args */
12177 for (i = 0; i < param_count - 1; i++) {
12181 mono_mb_emit_ldarg (mb, i);
12183 /* get the byval type of the param */
12184 klass = mono_class_from_mono_type (csig->params [i]);
12185 type = &klass->byval_arg;
12187 /* unbox struct args */
12188 if (MONO_TYPE_ISSTRUCT (type)) {
12189 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12191 /* byref args & and the "this" arg must remain a ptr.
12192 Otherwise make a copy of the value type */
12193 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12194 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12196 csig->params [i] = &mono_defaults.object_class->byval_arg;
12201 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12202 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12204 mono_mb_emit_op (mb, CEE_CALL, method);
12206 /* save result at local 1 */
12207 if (!MONO_TYPE_IS_VOID (sig->ret))
12208 mono_mb_emit_stloc (mb, 1);
12210 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12213 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12214 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12215 clause->data.catch_class = mono_defaults.object_class;
12217 clause->handler_offset = mono_mb_get_label (mb);
12219 /* store exception at local 0 */
12220 mono_mb_emit_stloc (mb, 0);
12221 mono_mb_emit_ldarg (mb, param_count - 1);
12222 mono_mb_emit_ldloc (mb, 0);
12223 mono_mb_emit_byte (mb, CEE_STIND_REF);
12224 mono_mb_emit_branch (mb, CEE_LEAVE);
12226 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12228 mono_mb_set_clauses (mb, 1, clause);
12230 mono_mb_patch_branch (mb, pos_leave);
12233 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12234 mono_mb_emit_ldloc (mb, 1);
12236 /* box the return value */
12237 if (MONO_TYPE_ISSTRUCT (sig->ret))
12238 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12241 mono_mb_emit_byte (mb, CEE_RET);
12244 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12251 * mono_marshal_free_dynamic_wrappers:
12253 * Free wrappers of the dynamic method METHOD.
12256 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12258 MonoImage *image = method->klass->image;
12260 g_assert (method_is_dynamic (method));
12262 /* This could be called during shutdown */
12263 if (marshal_mutex_initialized)
12264 mono_marshal_lock ();
12266 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12267 * they could be shared with other methods ?
12269 if (image->wrapper_caches.runtime_invoke_direct_cache)
12270 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
12271 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12272 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12273 // FIXME: Need to clear the caches in other images as well
12274 if (image->delegate_bound_static_invoke_cache)
12275 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12277 if (marshal_mutex_initialized)
12278 mono_marshal_unlock ();
12282 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12284 g_assert (ftnptr_eh_callback);
12285 ftnptr_eh_callback (gchandle);
12289 ftnptr_eh_callback_default (guint32 gchandle)
12291 MonoException *exc;
12292 gpointer stackdata;
12294 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12296 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12298 mono_gchandle_free (gchandle);
12300 mono_raise_exception (exc);
12304 * mono_install_ftnptr_eh_callback:
12306 * Install a callback that should be called when there is a managed exception
12307 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12308 * managed exception to a native exception, to properly unwind the native
12309 * stack; this native exception will then be converted back to a managed
12310 * exception in their managed-to-native wrapper.
12313 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12315 ftnptr_eh_callback = callback;
12318 static MonoThreadInfo*
12319 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12321 MonoThreadInfo *info = mono_thread_info_current ();
12323 mono_stack_mark_init (info, stackmark);
12324 error_init (error);
12329 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12331 mono_stack_mark_pop (info, stackmark);
12332 if (G_UNLIKELY (!is_ok (error)))
12333 mono_error_set_pending_exception (error);
12336 static MonoObjectHandle
12337 mono_icall_handle_new (gpointer rawobj)
12339 #ifdef MONO_HANDLE_TRACK_OWNER
12340 return mono_handle_new (rawobj, "<marshal args>");
12342 return mono_handle_new (rawobj);
12346 static MonoObjectHandle
12347 mono_icall_handle_new_interior (gpointer rawobj)
12349 #ifdef MONO_HANDLE_TRACK_OWNER
12350 return mono_handle_new_interior (rawobj, "<marshal args>");
12352 return mono_handle_new_interior (rawobj);