2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #include "metadata/marshal.h"
23 #include "metadata/method-builder.h"
24 #include "metadata/tabledefs.h"
25 #include "metadata/exception.h"
26 #include "metadata/appdomain.h"
27 #include "mono/metadata/abi-details.h"
28 #include "mono/metadata/debug-helpers.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/class-internals.h"
32 #include "mono/metadata/metadata-internals.h"
33 #include "mono/metadata/domain-internals.h"
34 #include "mono/metadata/gc-internals.h"
35 #include "mono/metadata/threads-types.h"
36 #include "mono/metadata/string-icalls.h"
37 #include "mono/metadata/attrdefs.h"
38 #include "mono/metadata/gc-internals.h"
39 #include "mono/metadata/cominterop.h"
40 #include "mono/metadata/remoting.h"
41 #include "mono/metadata/reflection-internals.h"
42 #include "mono/metadata/threadpool-ms.h"
43 #include "mono/utils/mono-counters.h"
44 #include "mono/utils/mono-tls.h"
45 #include "mono/utils/mono-memory-model.h"
46 #include "mono/utils/atomic.h"
47 #include <mono/utils/mono-threads.h>
48 #include <mono/utils/mono-error-internals.h>
53 /* #define DEBUG_RUNTIME_CODE */
55 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
59 #include "mono/cil/opcode.def"
65 * This mutex protects the various marshalling related caches in MonoImage
66 * and a few other data structures static to this file.
68 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
69 * runtime locking latice. Which means it can take simple locks suck as the image lock.
71 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
72 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
73 static mono_mutex_t marshal_mutex;
74 static gboolean marshal_mutex_initialized;
76 static MonoNativeTlsKey last_error_tls_id;
78 static MonoNativeTlsKey load_type_info_tls_id;
80 static gboolean use_aot_wrappers;
82 static void ftnptr_eh_callback_default (guint32 gchandle);
84 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
87 delegate_hash_table_add (MonoDelegate *d);
90 delegate_hash_table_remove (MonoDelegate *d);
93 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
96 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
99 mono_struct_delete_old (MonoClass *klass, char *ptr);
102 mono_marshal_string_to_utf16 (MonoString *s);
105 mono_marshal_string_to_utf16_copy (MonoString *s);
108 mono_string_to_lpstr (MonoString *string_obj);
110 static MonoStringBuilder *
111 mono_string_utf8_to_builder2 (char *text);
113 static MonoStringBuilder *
114 mono_string_utf16_to_builder2 (gunichar2 *text);
117 mono_string_new_len_wrapper (const char *text, guint length);
120 mono_string_from_byvalstr (const char *data, int len);
123 mono_string_from_byvalwstr (gunichar2 *data, int len);
126 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
129 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
132 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
135 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
137 static MonoAsyncResult *
138 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
141 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
144 mono_marshal_set_last_error_windows (int error);
147 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
149 static void init_safe_handle (void);
152 ves_icall_marshal_alloc (gulong size);
155 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
158 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
161 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
164 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
167 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
170 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
173 mono_delegate_to_ftnptr (MonoDelegate *delegate);
176 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
179 mono_array_to_savearray (MonoArray *array);
182 mono_array_to_lparray (MonoArray *array);
185 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
188 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
191 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
194 mono_array_to_savearray (MonoArray *array);
197 mono_array_to_lparray (MonoArray *array);
200 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
203 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
205 /* Lazy class loading functions */
206 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
207 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
208 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
209 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
211 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
212 static MonoMethod *sh_dangerous_add_ref;
213 static MonoMethod *sh_dangerous_release;
218 sh_dangerous_add_ref = mono_class_get_method_from_name (
219 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
220 sh_dangerous_release = mono_class_get_method_from_name (
221 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
225 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
227 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
229 mono_register_jit_icall (func, name, sig, no_wrapper);
233 mono_signature_no_pinvoke (MonoMethod *method)
235 MonoMethodSignature *sig = mono_method_signature (method);
237 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
238 sig->pinvoke = FALSE;
245 mono_marshal_init_tls (void)
247 mono_native_tls_alloc (&last_error_tls_id, NULL);
248 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
252 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
255 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
256 mono_error_set_pending_exception (&error);
261 ves_icall_mono_string_from_utf16 (gunichar2 *data)
264 MonoString *result = mono_string_from_utf16_checked (data, &error);
265 mono_error_set_pending_exception (&error);
270 ves_icall_mono_string_to_utf8 (MonoString *str)
273 char *result = mono_string_to_utf8_checked (str, &error);
274 mono_error_set_pending_exception (&error);
279 mono_marshal_init (void)
281 static gboolean module_initialized = FALSE;
283 if (!module_initialized) {
284 module_initialized = TRUE;
285 mono_os_mutex_init_recursive (&marshal_mutex);
286 marshal_mutex_initialized = TRUE;
288 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
289 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
290 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
291 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
292 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
293 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
294 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
295 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
296 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
297 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
298 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
299 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
300 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
301 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
302 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
303 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
304 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
305 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
306 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
307 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
308 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
309 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
310 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
311 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
312 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
313 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
314 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
315 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
316 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
317 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
318 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
319 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
320 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
321 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
322 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
323 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
324 register_icall (g_free, "g_free", "void ptr", FALSE);
325 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
326 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
327 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
328 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
329 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
330 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
331 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
332 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
333 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
334 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
335 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
336 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
337 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
338 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
339 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
341 mono_cominterop_init ();
342 mono_remoting_init ();
347 mono_marshal_cleanup (void)
349 mono_cominterop_cleanup ();
351 mono_native_tls_free (load_type_info_tls_id);
352 mono_native_tls_free (last_error_tls_id);
353 mono_os_mutex_destroy (&marshal_mutex);
354 marshal_mutex_initialized = FALSE;
358 mono_marshal_lock_internal (void)
360 mono_marshal_lock ();
364 mono_marshal_unlock_internal (void)
366 mono_marshal_unlock ();
369 /* This is a JIT icall, it sets the pending exception and return NULL on error */
371 mono_delegate_to_ftnptr (MonoDelegate *delegate)
374 MonoMethod *method, *wrapper;
376 uint32_t target_handle = 0;
381 if (delegate->delegate_trampoline)
382 return delegate->delegate_trampoline;
384 klass = ((MonoObject *)delegate)->vtable->klass;
385 g_assert (klass->delegate);
387 method = delegate->method;
388 if (delegate->method_is_virtual)
389 method = mono_object_get_virtual_method (delegate->target, method);
391 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
392 const char *exc_class, *exc_arg;
395 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
397 g_assert (exc_class);
398 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
404 if (delegate->target) {
405 /* Produce a location which can be embedded in JITted code */
406 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
409 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
411 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
415 // Add the delegate to the delegate hash table
416 delegate_hash_table_add (delegate);
418 /* when the object is collected, collect the dynamic method, too */
419 mono_object_register_finalizer ((MonoObject*)delegate);
421 return delegate->delegate_trampoline;
424 mono_gchandle_free (target_handle);
425 mono_error_set_pending_exception (&error);
430 * this hash table maps from a delegate trampoline object to a weak reference
431 * of the delegate. As an optimizations with a non-moving GC we store the
432 * object pointer itself, otherwise we use a GC handle.
434 static GHashTable *delegate_hash_table;
437 delegate_hash_table_new (void) {
438 return g_hash_table_new (NULL, NULL);
442 delegate_hash_table_remove (MonoDelegate *d)
444 guint32 gchandle = 0;
446 mono_marshal_lock ();
447 if (delegate_hash_table == NULL)
448 delegate_hash_table = delegate_hash_table_new ();
449 if (mono_gc_is_moving ())
450 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
451 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
452 mono_marshal_unlock ();
453 if (gchandle && mono_gc_is_moving ())
454 mono_gchandle_free (gchandle);
458 delegate_hash_table_add (MonoDelegate *d)
461 guint32 old_gchandle;
463 mono_marshal_lock ();
464 if (delegate_hash_table == NULL)
465 delegate_hash_table = delegate_hash_table_new ();
466 if (mono_gc_is_moving ()) {
467 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
468 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
469 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
471 mono_gchandle_free (old_gchandle);
473 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
475 mono_marshal_unlock ();
479 * mono_marshal_use_aot_wrappers:
481 * Instructs this module to use AOT compatible wrappers.
484 mono_marshal_use_aot_wrappers (gboolean use)
486 use_aot_wrappers = use;
490 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
493 MonoCustomAttrInfo *cinfo;
494 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
496 /* The attribute is only available in Net 2.0 */
497 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
499 * The pinvoke attributes are stored in a real custom attribute so we have to
502 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
503 if (!mono_error_ok (&error)) {
504 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
505 mono_error_cleanup (&error);
507 if (cinfo && !mono_runtime_get_no_exec ()) {
508 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
510 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
512 if (!mono_error_ok (&error)) {
513 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
514 mono_error_cleanup (&error);
518 mono_custom_attrs_free (cinfo);
523 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
525 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
534 mono_marshal_lock ();
535 if (delegate_hash_table == NULL)
536 delegate_hash_table = delegate_hash_table_new ();
538 if (mono_gc_is_moving ()) {
539 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
540 mono_marshal_unlock ();
542 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
546 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
547 mono_marshal_unlock ();
550 /* This is a native function, so construct a delegate for it */
551 MonoMethodSignature *sig;
553 MonoMarshalSpec **mspecs;
554 MonoMethod *invoke = mono_get_delegate_invoke (klass);
555 MonoMethodPInvoke piinfo;
556 MonoObject *this_obj;
559 if (use_aot_wrappers) {
560 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
561 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
562 if (!is_ok (&error)) {
563 mono_error_set_pending_exception (&error);
567 memset (&piinfo, 0, sizeof (piinfo));
568 parse_unmanaged_function_pointer_attr (klass, &piinfo);
570 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
571 mono_method_get_marshal_info (invoke, mspecs);
572 /* Freed below so don't alloc from mempool */
573 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
576 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
579 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
581 mono_metadata_free_marshal_spec (mspecs [i]);
586 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
587 if (!mono_error_ok (&error)) {
588 mono_error_set_pending_exception (&error);
591 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
592 if (mono_error_set_pending_exception (&error))
594 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
595 if (mono_error_set_pending_exception (&error))
599 if (d->object.vtable->domain != mono_domain_get ()) {
600 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
608 mono_delegate_free_ftnptr (MonoDelegate *delegate)
613 delegate_hash_table_remove (delegate);
615 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
617 if (!delegate->target) {
618 /* The wrapper method is shared between delegates -> no need to free it */
627 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
630 method = mono_jit_info_get_method (ji);
631 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
633 /*the target gchandle is the first entry after size and the wrapper itself.*/
634 gchandle = GPOINTER_TO_UINT (method_data [2]);
637 mono_gchandle_free (gchandle);
639 mono_runtime_free_method (mono_object_domain (delegate), method);
643 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
645 mono_string_from_byvalstr (const char *data, int max_len)
648 MonoDomain *domain = mono_domain_get ();
654 while (len < max_len - 1 && data [len])
657 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
658 mono_error_set_pending_exception (&error);
662 /* This is a JIT icall, it sets the pending exception and return NULL on error */
664 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
667 MonoString *res = NULL;
668 MonoDomain *domain = mono_domain_get ();
674 while (data [len]) len++;
676 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
677 if (!mono_error_ok (&error)) {
678 mono_error_set_pending_exception (&error);
685 mono_array_to_savearray (MonoArray *array)
690 g_assert_not_reached ();
695 mono_array_to_lparray (MonoArray *array)
698 gpointer *nativeArray = NULL;
699 int nativeArraySize = 0;
709 klass = array->obj.vtable->klass;
711 switch (klass->element_class->byval_arg.type) {
713 g_assert_not_reached ();
715 case MONO_TYPE_CLASS:
716 nativeArraySize = array->max_length;
717 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
718 for(i = 0; i < nativeArraySize; ++i)
719 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
722 case MONO_TYPE_BOOLEAN:
735 case MONO_TYPE_VALUETYPE:
739 case MONO_TYPE_GENERICINST:
740 case MONO_TYPE_OBJECT:
741 case MONO_TYPE_ARRAY:
742 case MONO_TYPE_SZARRAY:
743 case MONO_TYPE_STRING:
745 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
746 g_assert_not_reached ();
749 return array->vector;
753 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
764 klass = array->obj.vtable->klass;
766 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
767 for(i = 0; i < array->max_length; ++i)
768 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
775 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
777 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
779 if (elclass == mono_defaults.byte_class) {
780 GError *error = NULL;
784 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
787 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
791 g_error_free (error);
794 g_assert_not_reached ();
798 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
800 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
803 /* This is a JIT icall, it sets the pending exception and returns on error */
805 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
807 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
809 if (elclass == mono_defaults.byte_class) {
811 GError *error = NULL;
813 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
815 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
816 g_error_free (error);
820 memcpy (native_arr, as, MIN (strlen (as), elnum));
823 g_assert_not_reached ();
828 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
830 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
833 static MonoStringBuilder *
834 mono_string_builder_new (int starting_string_length)
836 static MonoClass *string_builder_class;
837 static MonoMethod *sb_ctor;
838 static void *args [1];
841 int initial_len = starting_string_length;
847 MonoMethodDesc *desc;
850 string_builder_class = mono_class_get_string_builder_class ();
851 g_assert (string_builder_class);
852 desc = mono_method_desc_new (":.ctor(int)", FALSE);
853 m = mono_method_desc_search_in_class (desc, string_builder_class);
855 mono_method_desc_free (desc);
856 mono_memory_barrier ();
860 // We make a new array in the _to_builder function, so this
861 // array will always be garbage collected.
862 args [0] = &initial_len;
864 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
865 mono_error_assert_ok (&error);
868 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
869 g_assert (exc == NULL);
870 mono_error_assert_ok (&error);
872 g_assert (sb->chunkChars->max_length >= initial_len);
878 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
880 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
881 gunichar2 *charSrc = (gunichar2 *)text;
882 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
884 sb->chunkLength = string_len;
890 mono_string_utf16_to_builder2 (gunichar2 *text)
896 for (len = 0; text [len] != 0; ++len);
898 MonoStringBuilder *sb = mono_string_builder_new (len);
899 mono_string_utf16_to_builder (sb, text);
905 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
910 int len = strlen (text);
911 if (len > mono_string_builder_capacity (sb))
912 len = mono_string_builder_capacity (sb);
914 GError *error = NULL;
916 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
919 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
920 mono_string_utf16_to_builder_copy (sb, ut, copied);
922 g_error_free (error);
928 mono_string_utf8_to_builder2 (char *text)
933 int len = strlen (text);
934 MonoStringBuilder *sb = mono_string_builder_new (len);
935 mono_string_utf8_to_builder (sb, text);
942 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
948 for (len = 0; text [len] != 0; ++len);
950 if (len > mono_string_builder_capacity (sb))
951 len = mono_string_builder_capacity (sb);
953 mono_string_utf16_to_builder_copy (sb, text, len);
957 * mono_string_builder_to_utf8:
958 * @sb: the string builder
960 * Converts to utf8 the contents of the MonoStringBuilder.
962 * Returns: a utf8 string with the contents of the StringBuilder.
964 * The return value must be released with g_free.
966 * This is a JIT icall, it sets the pending exception and returns NULL on error.
969 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
972 GError *gerror = NULL;
977 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
979 guint str_len = mono_string_builder_string_length (sb);
981 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
984 g_error_free (gerror);
986 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
989 guint len = mono_string_builder_capacity (sb) + 1;
990 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
991 if (!mono_error_ok (&error)) {
994 mono_error_set_pending_exception (&error);
998 g_assert (str_len < len);
999 memcpy (res, tmp, str_len * sizeof (gchar));
1000 res[str_len] = '\0';
1009 * mono_string_builder_to_utf16:
1010 * @sb: the string builder
1012 * Converts to utf16 the contents of the MonoStringBuilder.
1014 * Returns: a utf16 string with the contents of the StringBuilder.
1016 * The return value must not be freed.
1017 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1020 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1027 g_assert (sb->chunkChars);
1029 guint len = mono_string_builder_capacity (sb);
1034 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1035 if (!mono_error_ok (&error)) {
1036 mono_error_set_pending_exception (&error);
1045 MonoStringBuilder* chunk = sb;
1047 if (chunk->chunkLength > 0) {
1048 // Check that we will not overrun our boundaries.
1049 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1051 if (chunk->chunkLength <= len) {
1052 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1054 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1057 len -= chunk->chunkLength;
1059 chunk = chunk->chunkPrevious;
1060 } while (chunk != NULL);
1065 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1067 mono_string_to_lpstr (MonoString *s)
1072 GError *error = NULL;
1078 as = CoTaskMemAlloc (1);
1083 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1085 MonoException *exc = mono_get_exception_argument ("string", error->message);
1086 g_error_free (error);
1087 mono_set_pending_exception (exc);
1090 as = CoTaskMemAlloc (len + 1);
1091 memcpy (as, tmp, len + 1);
1097 char *result = mono_string_to_utf8_checked (s, &error);
1098 mono_error_set_pending_exception (&error);
1104 mono_string_to_ansibstr (MonoString *string_obj)
1106 g_error ("UnmanagedMarshal.BStr is not implemented.");
1111 * mono_string_to_byvalstr:
1112 * @dst: Where to store the null-terminated utf8 decoded string.
1113 * @src: the MonoString to copy.
1114 * @size: the maximum number of bytes to copy.
1116 * Copies the MonoString pointed to by @src as a utf8 string
1117 * into @dst, it copies at most @size bytes into the destination.
1120 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1126 g_assert (dst != NULL);
1127 g_assert (size > 0);
1129 memset (dst, 0, size);
1133 s = mono_string_to_utf8_checked (src, &error);
1134 if (mono_error_set_pending_exception (&error))
1136 len = MIN (size, strlen (s));
1139 memcpy (dst, s, len);
1144 * mono_string_to_byvalwstr:
1145 * @dst: Where to store the null-terminated utf16 decoded string.
1146 * @src: the MonoString to copy.
1147 * @size: the maximum number of bytes to copy.
1149 * Copies the MonoString pointed to by @src as a utf16 string into
1150 * @dst, it copies at most @size bytes into the destination (including
1151 * a terminating 16-bit zero terminator).
1154 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1158 g_assert (dst != NULL);
1159 g_assert (size > 1);
1162 memset (dst, 0, size * 2);
1166 len = MIN (size, (mono_string_length (src)));
1167 memcpy (dst, mono_string_chars (src), size * 2);
1168 if (size <= mono_string_length (src))
1170 *((gunichar2 *) dst + len) = 0;
1173 /* this is an icall, it sets the pending exception and returns NULL on error */
1175 mono_string_new_len_wrapper (const char *text, guint length)
1178 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1179 mono_error_set_pending_exception (&error);
1186 * mono_mb_emit_exception_marshal_directive:
1188 * This function assumes ownership of MSG, which should be malloc-ed.
1191 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1196 s = mono_image_strdup (mb->method->klass->image, msg);
1201 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1204 #endif /* !DISABLE_JIT */
1207 mono_type_to_ldind (MonoType *type)
1213 switch (type->type) {
1215 return CEE_LDIND_I1;
1217 case MONO_TYPE_BOOLEAN:
1218 return CEE_LDIND_U1;
1220 return CEE_LDIND_I2;
1222 case MONO_TYPE_CHAR:
1223 return CEE_LDIND_U2;
1225 return CEE_LDIND_I4;
1227 return CEE_LDIND_U4;
1231 case MONO_TYPE_FNPTR:
1233 case MONO_TYPE_CLASS:
1234 case MONO_TYPE_STRING:
1235 case MONO_TYPE_OBJECT:
1236 case MONO_TYPE_SZARRAY:
1237 case MONO_TYPE_ARRAY:
1238 return CEE_LDIND_REF;
1241 return CEE_LDIND_I8;
1243 return CEE_LDIND_R4;
1245 return CEE_LDIND_R8;
1246 case MONO_TYPE_VALUETYPE:
1247 if (type->data.klass->enumtype) {
1248 type = mono_class_enum_basetype (type->data.klass);
1252 case MONO_TYPE_TYPEDBYREF:
1254 case MONO_TYPE_GENERICINST:
1255 type = &type->data.generic_class->container_class->byval_arg;
1258 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1264 mono_type_to_stind (MonoType *type)
1267 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1271 switch (type->type) {
1274 case MONO_TYPE_BOOLEAN:
1275 return CEE_STIND_I1;
1278 case MONO_TYPE_CHAR:
1279 return CEE_STIND_I2;
1282 return CEE_STIND_I4;
1286 case MONO_TYPE_FNPTR:
1288 case MONO_TYPE_CLASS:
1289 case MONO_TYPE_STRING:
1290 case MONO_TYPE_OBJECT:
1291 case MONO_TYPE_SZARRAY:
1292 case MONO_TYPE_ARRAY:
1293 return CEE_STIND_REF;
1296 return CEE_STIND_I8;
1298 return CEE_STIND_R4;
1300 return CEE_STIND_R8;
1301 case MONO_TYPE_VALUETYPE:
1302 if (type->data.klass->enumtype) {
1303 type = mono_class_enum_basetype (type->data.klass);
1307 case MONO_TYPE_TYPEDBYREF:
1309 case MONO_TYPE_GENERICINST:
1310 type = &type->data.generic_class->container_class->byval_arg;
1313 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1321 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1324 case MONO_MARSHAL_CONV_BOOL_I4:
1325 mono_mb_emit_ldloc (mb, 1);
1326 mono_mb_emit_ldloc (mb, 0);
1327 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1328 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1329 mono_mb_emit_byte (mb, 3);
1330 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1331 mono_mb_emit_byte (mb, CEE_BR_S);
1332 mono_mb_emit_byte (mb, 1);
1333 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1334 mono_mb_emit_byte (mb, CEE_STIND_I1);
1336 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1337 mono_mb_emit_ldloc (mb, 1);
1338 mono_mb_emit_ldloc (mb, 0);
1339 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1340 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1341 mono_mb_emit_byte (mb, 3);
1342 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1343 mono_mb_emit_byte (mb, CEE_BR_S);
1344 mono_mb_emit_byte (mb, 1);
1345 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1346 mono_mb_emit_byte (mb, CEE_STIND_I1);
1348 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1349 MonoClass *eklass = NULL;
1352 if (type->type == MONO_TYPE_SZARRAY) {
1353 eklass = type->data.klass;
1355 g_assert_not_reached ();
1358 esize = mono_class_native_size (eklass, NULL);
1360 /* create a new array */
1361 mono_mb_emit_ldloc (mb, 1);
1362 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1363 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1364 mono_mb_emit_byte (mb, CEE_STIND_REF);
1366 if (eklass->blittable) {
1367 /* copy the elements */
1368 mono_mb_emit_ldloc (mb, 1);
1369 mono_mb_emit_byte (mb, CEE_LDIND_I);
1370 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1371 mono_mb_emit_byte (mb, CEE_ADD);
1372 mono_mb_emit_ldloc (mb, 0);
1373 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1374 mono_mb_emit_byte (mb, CEE_PREFIX1);
1375 mono_mb_emit_byte (mb, CEE_CPBLK);
1378 int array_var, src_var, dst_var, index_var;
1379 guint32 label2, label3;
1381 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1382 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1383 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1386 mono_mb_emit_ldloc (mb, 1);
1387 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1388 mono_mb_emit_stloc (mb, array_var);
1390 /* save the old src pointer */
1391 mono_mb_emit_ldloc (mb, 0);
1392 mono_mb_emit_stloc (mb, src_var);
1393 /* save the old dst pointer */
1394 mono_mb_emit_ldloc (mb, 1);
1395 mono_mb_emit_stloc (mb, dst_var);
1397 /* Emit marshalling loop */
1398 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1399 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1400 mono_mb_emit_stloc (mb, index_var);
1403 label2 = mono_mb_get_label (mb);
1404 mono_mb_emit_ldloc (mb, index_var);
1405 mono_mb_emit_ldloc (mb, array_var);
1406 mono_mb_emit_byte (mb, CEE_LDLEN);
1407 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1409 /* src is already set */
1412 mono_mb_emit_ldloc (mb, array_var);
1413 mono_mb_emit_ldloc (mb, index_var);
1414 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1415 mono_mb_emit_stloc (mb, 1);
1417 /* Do the conversion */
1418 emit_struct_conv (mb, eklass, TRUE);
1421 mono_mb_emit_add_to_local (mb, index_var, 1);
1423 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1425 mono_mb_patch_branch (mb, label3);
1427 /* restore the old src pointer */
1428 mono_mb_emit_ldloc (mb, src_var);
1429 mono_mb_emit_stloc (mb, 0);
1430 /* restore the old dst pointer */
1431 mono_mb_emit_ldloc (mb, dst_var);
1432 mono_mb_emit_stloc (mb, 1);
1436 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1437 MonoClass *eclass = mono_defaults.char_class;
1439 /* create a new array */
1440 mono_mb_emit_ldloc (mb, 1);
1441 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1442 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1443 mono_mb_emit_byte (mb, CEE_STIND_REF);
1445 mono_mb_emit_ldloc (mb, 1);
1446 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1447 mono_mb_emit_ldloc (mb, 0);
1448 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1449 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1452 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1453 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1454 mono_mb_emit_ldloc (mb, 1);
1455 mono_mb_emit_ldloc (mb, 0);
1456 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1457 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1459 mono_mb_emit_ldloc (mb, 1);
1460 mono_mb_emit_ldloc (mb, 0);
1461 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1463 mono_mb_emit_byte (mb, CEE_STIND_REF);
1465 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1466 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1467 mono_mb_emit_ldloc (mb, 1);
1468 mono_mb_emit_ldloc (mb, 0);
1469 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1470 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1472 mono_mb_emit_ldloc (mb, 1);
1473 mono_mb_emit_ldloc (mb, 0);
1474 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1476 mono_mb_emit_byte (mb, CEE_STIND_REF);
1478 case MONO_MARSHAL_CONV_STR_LPTSTR:
1479 mono_mb_emit_ldloc (mb, 1);
1480 mono_mb_emit_ldloc (mb, 0);
1481 mono_mb_emit_byte (mb, CEE_LDIND_I);
1483 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1485 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1487 mono_mb_emit_byte (mb, CEE_STIND_REF);
1489 case MONO_MARSHAL_CONV_STR_LPSTR:
1490 mono_mb_emit_ldloc (mb, 1);
1491 mono_mb_emit_ldloc (mb, 0);
1492 mono_mb_emit_byte (mb, CEE_LDIND_I);
1493 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1494 mono_mb_emit_byte (mb, CEE_STIND_REF);
1496 case MONO_MARSHAL_CONV_STR_LPWSTR:
1497 mono_mb_emit_ldloc (mb, 1);
1498 mono_mb_emit_ldloc (mb, 0);
1499 mono_mb_emit_byte (mb, CEE_LDIND_I);
1500 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1501 mono_mb_emit_byte (mb, CEE_STIND_REF);
1503 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1504 MonoClass *klass = mono_class_from_mono_type (type);
1505 int src_var, dst_var;
1507 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1508 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1510 /* *dst = new object */
1511 mono_mb_emit_ldloc (mb, 1);
1512 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1513 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1514 mono_mb_emit_byte (mb, CEE_STIND_REF);
1516 /* save the old src pointer */
1517 mono_mb_emit_ldloc (mb, 0);
1518 mono_mb_emit_stloc (mb, src_var);
1519 /* save the old dst pointer */
1520 mono_mb_emit_ldloc (mb, 1);
1521 mono_mb_emit_stloc (mb, dst_var);
1523 /* dst = pointer to newly created object data */
1524 mono_mb_emit_ldloc (mb, 1);
1525 mono_mb_emit_byte (mb, CEE_LDIND_I);
1526 mono_mb_emit_icon (mb, sizeof (MonoObject));
1527 mono_mb_emit_byte (mb, CEE_ADD);
1528 mono_mb_emit_stloc (mb, 1);
1530 emit_struct_conv (mb, klass, TRUE);
1532 /* restore the old src pointer */
1533 mono_mb_emit_ldloc (mb, src_var);
1534 mono_mb_emit_stloc (mb, 0);
1535 /* restore the old dst pointer */
1536 mono_mb_emit_ldloc (mb, dst_var);
1537 mono_mb_emit_stloc (mb, 1);
1540 case MONO_MARSHAL_CONV_DEL_FTN: {
1541 MonoClass *klass = mono_class_from_mono_type (type);
1543 mono_mb_emit_ldloc (mb, 1);
1544 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1545 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1546 mono_mb_emit_ldloc (mb, 0);
1547 mono_mb_emit_byte (mb, CEE_LDIND_I);
1548 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1549 mono_mb_emit_byte (mb, CEE_STIND_REF);
1552 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1553 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1557 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1558 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1559 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1560 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1562 #endif /* DISABLE_COM */
1564 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1566 * Passing SafeHandles as ref does not allow the unmanaged code
1567 * to change the SafeHandle value. If the value is changed,
1568 * we should issue a diagnostic exception (NotSupportedException)
1569 * that informs the user that changes to handles in unmanaged code
1572 * Since we currently have no access to the original
1573 * SafeHandle that was used during the marshalling,
1574 * for now we just ignore this, and ignore/discard any
1575 * changes that might have happened to the handle.
1580 case MONO_MARSHAL_CONV_HANDLEREF: {
1582 * Passing HandleRefs in a struct that is ref()ed does not
1583 * copy the values back to the HandleRef
1588 case MONO_MARSHAL_CONV_STR_BSTR:
1589 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1590 case MONO_MARSHAL_CONV_STR_TBSTR:
1591 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1593 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1595 mono_mb_emit_exception_marshal_directive (mb, msg);
1602 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1605 if (!ind_store_type)
1606 ind_store_type = &dummy;
1607 *ind_store_type = CEE_STIND_I;
1609 case MONO_MARSHAL_CONV_STR_LPWSTR:
1610 return mono_marshal_string_to_utf16;
1611 case MONO_MARSHAL_CONV_LPWSTR_STR:
1612 *ind_store_type = CEE_STIND_REF;
1613 return ves_icall_mono_string_from_utf16;
1614 case MONO_MARSHAL_CONV_LPTSTR_STR:
1615 *ind_store_type = CEE_STIND_REF;
1616 return mono_string_new_wrapper;
1617 case MONO_MARSHAL_CONV_LPSTR_STR:
1618 *ind_store_type = CEE_STIND_REF;
1619 return mono_string_new_wrapper;
1620 case MONO_MARSHAL_CONV_STR_LPTSTR:
1622 return mono_marshal_string_to_utf16;
1624 return mono_string_to_lpstr;
1626 case MONO_MARSHAL_CONV_STR_LPSTR:
1627 return mono_string_to_lpstr;
1628 case MONO_MARSHAL_CONV_STR_BSTR:
1629 return mono_string_to_bstr;
1630 case MONO_MARSHAL_CONV_BSTR_STR:
1631 *ind_store_type = CEE_STIND_REF;
1632 return mono_string_from_bstr_icall;
1633 case MONO_MARSHAL_CONV_STR_TBSTR:
1634 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1635 return mono_string_to_ansibstr;
1636 case MONO_MARSHAL_CONV_SB_LPSTR:
1637 return mono_string_builder_to_utf8;
1638 case MONO_MARSHAL_CONV_SB_LPTSTR:
1640 return mono_string_builder_to_utf16;
1642 return mono_string_builder_to_utf8;
1644 case MONO_MARSHAL_CONV_SB_LPWSTR:
1645 return mono_string_builder_to_utf16;
1646 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1647 return mono_array_to_savearray;
1648 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1649 return mono_array_to_lparray;
1650 case MONO_MARSHAL_FREE_LPARRAY:
1651 return mono_free_lparray;
1652 case MONO_MARSHAL_CONV_DEL_FTN:
1653 return mono_delegate_to_ftnptr;
1654 case MONO_MARSHAL_CONV_FTN_DEL:
1655 *ind_store_type = CEE_STIND_REF;
1656 return mono_ftnptr_to_delegate;
1657 case MONO_MARSHAL_CONV_LPSTR_SB:
1658 *ind_store_type = CEE_STIND_REF;
1659 return mono_string_utf8_to_builder;
1660 case MONO_MARSHAL_CONV_LPTSTR_SB:
1661 *ind_store_type = CEE_STIND_REF;
1663 return mono_string_utf16_to_builder;
1665 return mono_string_utf8_to_builder;
1667 case MONO_MARSHAL_CONV_LPWSTR_SB:
1668 *ind_store_type = CEE_STIND_REF;
1669 return mono_string_utf16_to_builder;
1670 case MONO_MARSHAL_FREE_ARRAY:
1671 return mono_marshal_free_array;
1672 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1673 return mono_string_to_byvalstr;
1674 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1675 return mono_string_to_byvalwstr;
1677 g_assert_not_reached ();
1684 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1690 case MONO_MARSHAL_CONV_BOOL_I4:
1691 mono_mb_emit_ldloc (mb, 1);
1692 mono_mb_emit_ldloc (mb, 0);
1693 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1694 mono_mb_emit_byte (mb, CEE_STIND_I4);
1696 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1697 mono_mb_emit_ldloc (mb, 1);
1698 mono_mb_emit_ldloc (mb, 0);
1699 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1700 mono_mb_emit_byte (mb, CEE_NEG);
1701 mono_mb_emit_byte (mb, CEE_STIND_I2);
1703 case MONO_MARSHAL_CONV_STR_LPWSTR:
1704 case MONO_MARSHAL_CONV_STR_LPSTR:
1705 case MONO_MARSHAL_CONV_STR_LPTSTR:
1706 case MONO_MARSHAL_CONV_STR_BSTR:
1707 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1708 case MONO_MARSHAL_CONV_STR_TBSTR: {
1711 /* free space if free == true */
1712 mono_mb_emit_ldloc (mb, 2);
1713 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1714 mono_mb_emit_ldloc (mb, 1);
1715 mono_mb_emit_byte (mb, CEE_LDIND_I);
1716 mono_mb_emit_icall (mb, g_free);
1717 mono_mb_patch_short_branch (mb, pos);
1719 mono_mb_emit_ldloc (mb, 1);
1720 mono_mb_emit_ldloc (mb, 0);
1721 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1722 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1723 mono_mb_emit_byte (mb, stind_op);
1726 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1727 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1728 case MONO_MARSHAL_CONV_DEL_FTN:
1729 mono_mb_emit_ldloc (mb, 1);
1730 mono_mb_emit_ldloc (mb, 0);
1731 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1732 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1733 mono_mb_emit_byte (mb, stind_op);
1735 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1736 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1739 mono_mb_emit_ldloc (mb, 1); /* dst */
1740 mono_mb_emit_ldloc (mb, 0);
1741 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1742 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1743 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1746 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1747 MonoClass *eklass = NULL;
1750 if (type->type == MONO_TYPE_SZARRAY) {
1751 eklass = type->data.klass;
1753 g_assert_not_reached ();
1756 if (eklass->valuetype)
1757 esize = mono_class_native_size (eklass, NULL);
1759 esize = sizeof (gpointer);
1761 mono_mb_emit_ldloc (mb, 0);
1762 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1763 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1765 if (eklass->blittable) {
1766 mono_mb_emit_ldloc (mb, 1);
1767 mono_mb_emit_ldloc (mb, 0);
1768 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1769 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1770 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1771 mono_mb_emit_byte (mb, CEE_PREFIX1);
1772 mono_mb_emit_byte (mb, CEE_CPBLK);
1774 int array_var, src_var, dst_var, index_var;
1775 guint32 label2, label3;
1777 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1778 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1779 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1782 mono_mb_emit_ldloc (mb, 0);
1783 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1784 mono_mb_emit_stloc (mb, array_var);
1786 /* save the old src pointer */
1787 mono_mb_emit_ldloc (mb, 0);
1788 mono_mb_emit_stloc (mb, src_var);
1789 /* save the old dst pointer */
1790 mono_mb_emit_ldloc (mb, 1);
1791 mono_mb_emit_stloc (mb, dst_var);
1793 /* Emit marshalling loop */
1794 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1795 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1796 mono_mb_emit_stloc (mb, index_var);
1799 label2 = mono_mb_get_label (mb);
1800 mono_mb_emit_ldloc (mb, index_var);
1801 mono_mb_emit_ldloc (mb, array_var);
1802 mono_mb_emit_byte (mb, CEE_LDLEN);
1803 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1806 mono_mb_emit_ldloc (mb, array_var);
1807 mono_mb_emit_ldloc (mb, index_var);
1808 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1809 mono_mb_emit_stloc (mb, 0);
1811 /* dst is already set */
1813 /* Do the conversion */
1814 emit_struct_conv (mb, eklass, FALSE);
1817 mono_mb_emit_add_to_local (mb, index_var, 1);
1819 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1821 mono_mb_patch_branch (mb, label3);
1823 /* restore the old src pointer */
1824 mono_mb_emit_ldloc (mb, src_var);
1825 mono_mb_emit_stloc (mb, 0);
1826 /* restore the old dst pointer */
1827 mono_mb_emit_ldloc (mb, dst_var);
1828 mono_mb_emit_stloc (mb, 1);
1831 mono_mb_patch_branch (mb, pos);
1834 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1835 mono_mb_emit_ldloc (mb, 0);
1836 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1837 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1839 mono_mb_emit_ldloc (mb, 1);
1840 mono_mb_emit_ldloc (mb, 0);
1841 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1842 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1843 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1844 mono_mb_patch_short_branch (mb, pos);
1847 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1848 int src_var, dst_var;
1850 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1851 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1853 mono_mb_emit_ldloc (mb, 0);
1854 mono_mb_emit_byte (mb, CEE_LDIND_I);
1855 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1857 /* save the old src pointer */
1858 mono_mb_emit_ldloc (mb, 0);
1859 mono_mb_emit_stloc (mb, src_var);
1860 /* save the old dst pointer */
1861 mono_mb_emit_ldloc (mb, 1);
1862 mono_mb_emit_stloc (mb, dst_var);
1864 /* src = pointer to object data */
1865 mono_mb_emit_ldloc (mb, 0);
1866 mono_mb_emit_byte (mb, CEE_LDIND_I);
1867 mono_mb_emit_icon (mb, sizeof (MonoObject));
1868 mono_mb_emit_byte (mb, CEE_ADD);
1869 mono_mb_emit_stloc (mb, 0);
1871 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1873 /* restore the old src pointer */
1874 mono_mb_emit_ldloc (mb, src_var);
1875 mono_mb_emit_stloc (mb, 0);
1876 /* restore the old dst pointer */
1877 mono_mb_emit_ldloc (mb, dst_var);
1878 mono_mb_emit_stloc (mb, 1);
1880 mono_mb_patch_branch (mb, pos);
1885 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1886 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1887 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1888 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1890 #endif /* DISABLE_COM */
1892 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1895 mono_mb_emit_ldloc (mb, 0);
1896 mono_mb_emit_byte (mb, CEE_LDIND_I);
1897 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1898 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1899 mono_mb_patch_branch (mb, pos);
1901 /* Pull the handle field from SafeHandle */
1902 mono_mb_emit_ldloc (mb, 1);
1903 mono_mb_emit_ldloc (mb, 0);
1904 mono_mb_emit_byte (mb, CEE_LDIND_I);
1905 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1906 mono_mb_emit_byte (mb, CEE_LDIND_I);
1907 mono_mb_emit_byte (mb, CEE_STIND_I);
1911 case MONO_MARSHAL_CONV_HANDLEREF: {
1912 mono_mb_emit_ldloc (mb, 1);
1913 mono_mb_emit_ldloc (mb, 0);
1914 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1915 mono_mb_emit_byte (mb, CEE_ADD);
1916 mono_mb_emit_byte (mb, CEE_LDIND_I);
1917 mono_mb_emit_byte (mb, CEE_STIND_I);
1922 g_error ("marshalling conversion %d not implemented", conv);
1928 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1929 MonoMarshalNative string_encoding)
1931 MonoMarshalType *info;
1935 emit_struct_conv(mb, klass->parent, to_object);
1937 info = mono_marshal_load_type_info (klass);
1939 if (info->native_size == 0)
1942 if (klass->blittable) {
1943 int msize = mono_class_value_size (klass, NULL);
1944 g_assert (msize == info->native_size);
1945 mono_mb_emit_ldloc (mb, 1);
1946 mono_mb_emit_ldloc (mb, 0);
1947 mono_mb_emit_icon (mb, msize);
1948 mono_mb_emit_byte (mb, CEE_PREFIX1);
1949 mono_mb_emit_byte (mb, CEE_CPBLK);
1951 mono_mb_emit_add_to_local (mb, 0, msize);
1952 mono_mb_emit_add_to_local (mb, 1, msize);
1956 if (klass != mono_class_try_get_safehandle_class ()) {
1957 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1958 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1959 mono_type_full_name (&klass->byval_arg));
1960 mono_mb_emit_exception_marshal_directive (mb, msg);
1965 for (i = 0; i < info->num_fields; i++) {
1966 MonoMarshalNative ntype;
1967 MonoMarshalConv conv;
1968 MonoType *ftype = info->fields [i].field->type;
1971 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1973 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1976 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1979 msize = klass->instance_size - info->fields [i].field->offset;
1980 usize = info->native_size - info->fields [i].offset;
1982 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1983 usize = info->fields [i + 1].offset - info->fields [i].offset;
1986 if (klass != mono_class_try_get_safehandle_class ()){
1988 * FIXME: Should really check for usize==0 and msize>0, but we apply
1989 * the layout to the managed structure as well.
1992 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1993 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1994 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1995 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1996 "reference field at the same offset as another field.",
1997 mono_type_full_name (&klass->byval_arg));
2002 case MONO_MARSHAL_CONV_NONE: {
2005 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2006 g_assert (!ftype->byref);
2007 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2008 mono_mb_emit_ldloc (mb, 1);
2009 mono_mb_emit_ldloc (mb, 0);
2010 mono_mb_emit_byte (mb, CEE_LDIND_I);
2011 mono_mb_emit_byte (mb, CEE_STIND_I);
2022 case MONO_TYPE_BOOLEAN:
2025 case MONO_TYPE_CHAR:
2031 mono_mb_emit_ldloc (mb, 1);
2032 mono_mb_emit_ldloc (mb, 0);
2033 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2035 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2036 mono_mb_emit_byte (mb, CEE_STIND_I2);
2038 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2039 mono_mb_emit_byte (mb, CEE_STIND_I1);
2042 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2043 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2046 case MONO_TYPE_VALUETYPE: {
2047 int src_var, dst_var;
2049 if (ftype->data.klass->enumtype) {
2050 ftype = mono_class_enum_basetype (ftype->data.klass);
2054 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2055 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2057 /* save the old src pointer */
2058 mono_mb_emit_ldloc (mb, 0);
2059 mono_mb_emit_stloc (mb, src_var);
2060 /* save the old dst pointer */
2061 mono_mb_emit_ldloc (mb, 1);
2062 mono_mb_emit_stloc (mb, dst_var);
2064 emit_struct_conv (mb, ftype->data.klass, to_object);
2066 /* restore the old src pointer */
2067 mono_mb_emit_ldloc (mb, src_var);
2068 mono_mb_emit_stloc (mb, 0);
2069 /* restore the old dst pointer */
2070 mono_mb_emit_ldloc (mb, dst_var);
2071 mono_mb_emit_stloc (mb, 1);
2074 case MONO_TYPE_OBJECT: {
2077 static MonoMethod *variant_clear = NULL;
2078 static MonoMethod *get_object_for_native_variant = NULL;
2081 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2082 if (!get_object_for_native_variant)
2083 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2084 mono_mb_emit_ldloc (mb, 1);
2085 mono_mb_emit_ldloc (mb, 0);
2086 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2087 mono_mb_emit_byte (mb, CEE_STIND_REF);
2089 mono_mb_emit_ldloc (mb, 0);
2090 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2093 static MonoMethod *get_native_variant_for_object = NULL;
2095 if (!get_native_variant_for_object)
2096 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2098 mono_mb_emit_ldloc (mb, 0);
2099 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2100 mono_mb_emit_ldloc (mb, 1);
2101 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2104 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2105 mono_mb_emit_exception_marshal_directive (mb, msg);
2111 g_warning ("marshaling type %02x not implemented", ftype->type);
2112 g_assert_not_reached ();
2117 int src_var, dst_var;
2119 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2120 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2122 /* save the old src pointer */
2123 mono_mb_emit_ldloc (mb, 0);
2124 mono_mb_emit_stloc (mb, src_var);
2125 /* save the old dst pointer */
2126 mono_mb_emit_ldloc (mb, 1);
2127 mono_mb_emit_stloc (mb, dst_var);
2130 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2132 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2134 /* restore the old src pointer */
2135 mono_mb_emit_ldloc (mb, src_var);
2136 mono_mb_emit_stloc (mb, 0);
2137 /* restore the old dst pointer */
2138 mono_mb_emit_ldloc (mb, dst_var);
2139 mono_mb_emit_stloc (mb, 1);
2144 mono_mb_emit_add_to_local (mb, 0, usize);
2145 mono_mb_emit_add_to_local (mb, 1, msize);
2147 mono_mb_emit_add_to_local (mb, 0, msize);
2148 mono_mb_emit_add_to_local (mb, 1, usize);
2154 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2156 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2160 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2162 /* Call DestroyStructure */
2163 /* FIXME: Only do this if needed */
2164 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2165 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2166 mono_mb_emit_ldloc (mb, struct_var);
2167 mono_mb_emit_icall (mb, mono_struct_delete_old);
2171 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2173 int pos_noabort, pos_noex;
2175 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2176 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2177 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2178 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2180 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2181 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2183 mono_mb_emit_icall (mb, checkpoint_func);
2184 /* Throw the exception returned by the checkpoint function, if any */
2185 mono_mb_emit_byte (mb, CEE_DUP);
2186 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2187 mono_mb_emit_byte (mb, CEE_THROW);
2188 mono_mb_patch_branch (mb, pos_noex);
2189 mono_mb_emit_byte (mb, CEE_POP);
2191 mono_mb_patch_branch (mb, pos_noabort);
2195 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2197 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2200 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2204 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2206 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2210 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2212 emit_thread_interrupt_checkpoint (mb);
2216 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2218 emit_thread_force_interrupt_checkpoint (mb);
2221 #endif /* DISABLE_JIT */
2223 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2224 static MonoAsyncResult *
2225 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2228 MonoMulticastDelegate *mcast_delegate;
2232 g_assert (delegate);
2233 mcast_delegate = (MonoMulticastDelegate *) delegate;
2234 if (mcast_delegate->delegates != NULL) {
2235 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2239 #ifndef DISABLE_REMOTING
2240 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2241 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2242 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2243 /* If the target is a proxy, make a direct call. Is proxy's work
2244 // to make the call asynchronous.
2246 MonoMethodMessage *msg;
2247 MonoDelegate *async_callback;
2249 MonoAsyncResult *ares;
2251 MonoArray *out_args;
2252 method = delegate->method;
2254 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2255 if (mono_error_set_pending_exception (&error))
2257 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2258 if (mono_error_set_pending_exception (&error))
2260 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2261 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2262 MONO_OBJECT_SETREF (msg, async_result, ares);
2263 msg->call_type = CallType_BeginInvoke;
2266 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2267 if (!mono_error_ok (&error)) {
2268 mono_error_set_pending_exception (&error);
2272 mono_set_pending_exception ((MonoException *) exc);
2278 klass = delegate->object.vtable->klass;
2280 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2282 method = mono_get_delegate_invoke (klass);
2285 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2286 mono_error_set_pending_exception (&error);
2293 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2295 int i, params_var, tmp_var;
2297 /* allocate local (pointer) *params[] */
2298 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2299 /* allocate local (pointer) tmp */
2300 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2302 /* alloate space on stack to store an array of pointers to the arguments */
2303 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2304 mono_mb_emit_byte (mb, CEE_PREFIX1);
2305 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2306 mono_mb_emit_stloc (mb, params_var);
2309 mono_mb_emit_ldloc (mb, params_var);
2310 mono_mb_emit_stloc (mb, tmp_var);
2312 if (save_this && sig->hasthis) {
2313 mono_mb_emit_ldloc (mb, tmp_var);
2314 mono_mb_emit_ldarg_addr (mb, 0);
2315 mono_mb_emit_byte (mb, CEE_STIND_I);
2316 /* tmp = tmp + sizeof (gpointer) */
2317 if (sig->param_count)
2318 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2322 for (i = 0; i < sig->param_count; i++) {
2323 mono_mb_emit_ldloc (mb, tmp_var);
2324 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2325 mono_mb_emit_byte (mb, CEE_STIND_I);
2326 /* tmp = tmp + sizeof (gpointer) */
2327 if (i < (sig->param_count - 1))
2328 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2334 #endif /* DISABLE_JIT */
2337 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2341 GString *res = g_string_new ("");
2344 g_string_append (res, prefix);
2345 g_string_append_c (res, '_');
2348 mono_type_get_desc (res, sig->ret, FALSE);
2351 g_string_append (res, "__this__");
2353 for (i = 0; i < sig->param_count; ++i) {
2354 g_string_append_c (res, '_');
2355 mono_type_get_desc (res, sig->params [i], FALSE);
2358 g_string_free (res, FALSE);
2363 * mono_marshal_get_string_encoding:
2365 * Return the string encoding which should be used for a given parameter.
2367 static MonoMarshalNative
2368 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2370 /* First try the parameter marshal info */
2372 if (spec->native == MONO_NATIVE_LPARRAY) {
2373 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2374 return spec->data.array_data.elem_type;
2377 return spec->native;
2381 return MONO_NATIVE_LPSTR;
2383 /* Then try the method level marshal info */
2384 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2385 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2386 return MONO_NATIVE_LPSTR;
2387 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2388 return MONO_NATIVE_LPWSTR;
2389 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2391 return MONO_NATIVE_LPWSTR;
2393 return MONO_NATIVE_LPSTR;
2396 return MONO_NATIVE_LPSTR;
2400 static MonoMarshalConv
2401 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2403 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2406 case MONO_NATIVE_LPWSTR:
2407 return MONO_MARSHAL_CONV_STR_LPWSTR;
2408 case MONO_NATIVE_LPSTR:
2409 case MONO_NATIVE_VBBYREFSTR:
2410 return MONO_MARSHAL_CONV_STR_LPSTR;
2411 case MONO_NATIVE_LPTSTR:
2412 return MONO_MARSHAL_CONV_STR_LPTSTR;
2413 case MONO_NATIVE_BSTR:
2414 return MONO_MARSHAL_CONV_STR_BSTR;
2416 return MONO_MARSHAL_CONV_INVALID;
2420 static MonoMarshalConv
2421 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2423 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2426 case MONO_NATIVE_LPWSTR:
2427 return MONO_MARSHAL_CONV_SB_LPWSTR;
2429 case MONO_NATIVE_LPSTR:
2430 return MONO_MARSHAL_CONV_SB_LPSTR;
2432 case MONO_NATIVE_LPTSTR:
2433 return MONO_MARSHAL_CONV_SB_LPTSTR;
2436 return MONO_MARSHAL_CONV_INVALID;
2440 static MonoMarshalConv
2441 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2443 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2448 case MONO_NATIVE_LPWSTR:
2450 return MONO_MARSHAL_CONV_LPWSTR_STR;
2451 case MONO_NATIVE_LPSTR:
2452 case MONO_NATIVE_VBBYREFSTR:
2453 return MONO_MARSHAL_CONV_LPSTR_STR;
2454 case MONO_NATIVE_LPTSTR:
2455 return MONO_MARSHAL_CONV_LPTSTR_STR;
2456 case MONO_NATIVE_BSTR:
2457 return MONO_MARSHAL_CONV_BSTR_STR;
2459 return MONO_MARSHAL_CONV_INVALID;
2463 static MonoMarshalConv
2464 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2466 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2471 case MONO_NATIVE_LPWSTR:
2473 * mono_string_builder_to_utf16 does not allocate a
2474 * new buffer, so no need to free it.
2477 return MONO_MARSHAL_CONV_LPWSTR_SB;
2478 case MONO_NATIVE_LPSTR:
2479 return MONO_MARSHAL_CONV_LPSTR_SB;
2481 case MONO_NATIVE_LPTSTR:
2482 return MONO_MARSHAL_CONV_LPTSTR_SB;
2485 return MONO_MARSHAL_CONV_INVALID;
2490 * Return whenever a field of a native structure or an array member needs to
2494 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2496 MonoMarshalNative encoding;
2499 case MONO_TYPE_VALUETYPE:
2500 /* FIXME: Optimize this */
2502 case MONO_TYPE_OBJECT:
2503 case MONO_TYPE_CLASS:
2504 if (t->data.klass == mono_defaults.stringbuilder_class) {
2506 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2510 case MONO_TYPE_STRING:
2511 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2512 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2519 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2522 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2525 mono_marshal_lock ();
2528 g_hash_table_new (hash_func, equal_func);
2529 mono_memory_barrier ();
2532 mono_marshal_unlock ();
2538 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2540 return get_cache (var, hash_func, equal_func);
2544 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2548 mono_marshal_lock ();
2549 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2550 mono_marshal_unlock ();
2557 * Create a MonoMethod from MB, set INFO as wrapper info.
2560 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2561 int max_stack, WrapperInfo *info)
2565 res = mono_mb_create_method (mb, sig, max_stack);
2567 mono_marshal_set_wrapper_info (res, info);
2571 /* Create the method from the builder and place it in the cache */
2573 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2574 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2575 int max_stack, WrapperInfo *info, gboolean *out_found)
2582 mono_marshal_lock ();
2583 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2584 mono_marshal_unlock ();
2587 newm = mono_mb_create_method (mb, sig, max_stack);
2588 mono_marshal_lock ();
2589 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2592 g_hash_table_insert (cache, key, res);
2593 mono_marshal_set_wrapper_info (res, info);
2594 mono_marshal_unlock ();
2598 mono_marshal_unlock ();
2599 mono_free_method (newm);
2607 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2608 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2611 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2615 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2618 int wrapper_type = wrapper->wrapper_type;
2621 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2624 info = mono_marshal_get_wrapper_info (wrapper);
2626 switch (wrapper_type) {
2627 case MONO_WRAPPER_REMOTING_INVOKE:
2628 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2629 case MONO_WRAPPER_XDOMAIN_INVOKE:
2630 m = info->d.remoting.method;
2631 if (wrapper->is_inflated) {
2635 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2636 * contains an uninflated method.
2638 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2639 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2643 case MONO_WRAPPER_SYNCHRONIZED:
2644 m = info->d.synchronized.method;
2645 if (wrapper->is_inflated) {
2648 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2649 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2653 case MONO_WRAPPER_UNBOX:
2654 return info->d.unbox.method;
2655 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2656 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2657 return info->d.managed_to_native.method;
2660 case MONO_WRAPPER_RUNTIME_INVOKE:
2661 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2662 return info->d.runtime_invoke.method;
2671 * mono_marshal_get_wrapper_info:
2673 * Retrieve the WrapperInfo structure associated with WRAPPER.
2676 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2678 g_assert (wrapper->wrapper_type);
2680 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2684 * mono_marshal_set_wrapper_info:
2686 * Set the WrapperInfo structure associated with the wrapper
2687 * method METHOD to INFO.
2690 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2694 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2697 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2702 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2706 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2707 info->subtype = subtype;
2712 * get_wrapper_target_class:
2714 * Return the class where a wrapper method should be placed.
2717 get_wrapper_target_class (MonoImage *image)
2724 * - can't put all wrappers into an mscorlib class, because they reference
2725 * metadata (signature) so they should be put into the same image as the
2726 * method they wrap, so they are unloaded together.
2727 * - putting them into a class with a type initalizer could cause the
2728 * initializer to be executed which can be a problem if the wrappers are
2730 * - putting them into an inflated class can cause problems if the the
2731 * class is deleted because it references an image which is unloaded.
2732 * To avoid these problems, we put the wrappers into the <Module> class of
2735 if (image_is_dynamic (image)) {
2736 klass = ((MonoDynamicImage*)image)->wrappers_type;
2738 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2739 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2747 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2748 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2752 * check_generic_wrapper_cache:
2754 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2755 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2756 * generic method definition.
2759 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2762 MonoMethod *inst, *def;
2763 MonoGenericContext *ctx;
2765 g_assert (orig_method->is_inflated);
2766 ctx = mono_method_get_context (orig_method);
2769 * Look for the instance
2771 res = mono_marshal_find_in_cache (cache, key);
2776 * Look for the definition
2778 def = mono_marshal_find_in_cache (cache, def_key);
2781 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2782 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2784 mono_memory_barrier ();
2785 mono_marshal_lock ();
2786 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2788 g_hash_table_insert (cache, key, inst);
2791 mono_marshal_unlock ();
2798 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2801 MonoMethod *inst, *res;
2804 * We use the same cache for the generic definition and the instances.
2806 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2807 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2808 mono_memory_barrier ();
2809 mono_marshal_lock ();
2810 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2812 g_hash_table_insert (cache, key, inst);
2815 mono_marshal_unlock ();
2820 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2824 MonoMethod *inst, *def;
2827 * Look for the instance
2829 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2834 * Look for the definition
2836 def = mono_marshal_find_in_cache (cache, def_method->klass);
2838 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2839 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2842 mono_memory_barrier ();
2843 mono_marshal_lock ();
2844 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2846 g_hash_table_insert (cache, orig_method->klass, inst);
2849 mono_marshal_unlock ();
2856 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2859 MonoMethod *inst, *res;
2862 * We use the same cache for the generic definition and the instances.
2864 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2865 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2867 mono_memory_barrier ();
2868 mono_marshal_lock ();
2869 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2871 g_hash_table_insert (cache, orig_method->klass, inst);
2874 mono_marshal_unlock ();
2879 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2881 MonoMethodSignature *sig;
2882 MonoMethodBuilder *mb;
2887 MonoGenericContext *ctx = NULL;
2888 MonoMethod *orig_method = NULL;
2890 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2891 !strcmp (method->name, "BeginInvoke"));
2894 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2896 if (method->is_inflated) {
2897 orig_method = method;
2898 ctx = &((MonoMethodInflated*)method)->context;
2899 method = ((MonoMethodInflated*)method)->declaring;
2902 sig = mono_signature_no_pinvoke (method);
2908 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2909 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2913 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2914 (GHashFunc)mono_signature_hash,
2915 (GCompareFunc)mono_metadata_signature_equal);
2916 if ((res = mono_marshal_find_in_cache (cache, sig)))
2920 g_assert (sig->hasthis);
2922 name = mono_signature_to_name (sig, "begin_invoke");
2924 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2926 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2930 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2932 mono_mb_emit_ldarg (mb, 0);
2933 mono_mb_emit_ldloc (mb, params_var);
2934 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2935 mono_mb_emit_byte (mb, CEE_RET);
2940 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2941 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2943 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2950 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2952 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2955 MonoDomain *domain = mono_domain_get ();
2956 MonoAsyncResult *ares;
2957 MonoMethod *method = NULL;
2958 MonoMethodSignature *sig;
2959 MonoMethodMessage *msg;
2960 MonoObject *res, *exc;
2961 MonoArray *out_args;
2964 g_assert (delegate);
2966 if (!delegate->method_info) {
2967 g_assert (delegate->method);
2968 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2969 if (!mono_error_ok (&error)) {
2970 mono_error_set_pending_exception (&error);
2973 MONO_OBJECT_SETREF (delegate, method_info, rm);
2976 if (!delegate->method_info || !delegate->method_info->method)
2977 g_assert_not_reached ();
2979 klass = delegate->object.vtable->klass;
2981 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2982 g_assert (method != NULL);
2984 sig = mono_signature_no_pinvoke (method);
2986 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
2987 if (mono_error_set_pending_exception (&error))
2990 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2992 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."));
2996 if (ares->async_delegate != (MonoObject*)delegate) {
2997 mono_set_pending_exception (mono_get_exception_invalid_operation (
2998 "The IAsyncResult object provided does not match this delegate."));
3002 #ifndef DISABLE_REMOTING
3003 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3004 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3005 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3006 if (!mono_error_ok (&error)) {
3007 mono_error_set_pending_exception (&error);
3010 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3011 if (mono_error_set_pending_exception (&error))
3013 msg->call_type = CallType_EndInvoke;
3014 MONO_OBJECT_SETREF (msg, async_result, ares);
3015 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3016 if (!mono_error_ok (&error)) {
3017 mono_error_set_pending_exception (&error);
3023 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc, &error);
3024 if (mono_error_set_pending_exception (&error))
3029 if (((MonoException*)exc)->stack_trace) {
3030 MonoError inner_error;
3031 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3032 if (is_ok (&inner_error)) {
3034 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3036 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3039 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3041 mono_set_pending_exception ((MonoException*)exc);
3044 mono_method_return_message_restore (method, params, out_args, &error);
3045 mono_error_set_pending_exception (&error);
3052 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3054 MonoType *t = mono_type_get_underlying_type (return_type);
3056 if (return_type->byref)
3057 return_type = &mono_defaults.int_class->byval_arg;
3060 case MONO_TYPE_VOID:
3061 g_assert_not_reached ();
3064 case MONO_TYPE_STRING:
3065 case MONO_TYPE_CLASS:
3066 case MONO_TYPE_OBJECT:
3067 case MONO_TYPE_ARRAY:
3068 case MONO_TYPE_SZARRAY:
3072 case MONO_TYPE_BOOLEAN:
3075 case MONO_TYPE_CHAR:
3085 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3086 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3088 case MONO_TYPE_GENERICINST:
3089 if (!mono_type_generic_inst_is_valuetype (t))
3092 case MONO_TYPE_VALUETYPE: {
3093 MonoClass *klass = mono_class_from_mono_type (return_type);
3094 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3095 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3099 case MONO_TYPE_MVAR: {
3100 MonoClass *klass = mono_class_from_mono_type (return_type);
3101 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3105 g_warning ("type 0x%x not handled", return_type->type);
3106 g_assert_not_reached ();
3109 mono_mb_emit_byte (mb, CEE_RET);
3112 #endif /* DISABLE_JIT */
3115 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3117 MonoMethodSignature *sig;
3118 MonoMethodBuilder *mb;
3123 MonoGenericContext *ctx = NULL;
3124 MonoMethod *orig_method = NULL;
3126 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3127 !strcmp (method->name, "EndInvoke"));
3130 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3132 if (method->is_inflated) {
3133 orig_method = method;
3134 ctx = &((MonoMethodInflated*)method)->context;
3135 method = ((MonoMethodInflated*)method)->declaring;
3138 sig = mono_signature_no_pinvoke (method);
3144 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3145 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3149 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3150 (GHashFunc)mono_signature_hash,
3151 (GCompareFunc)mono_metadata_signature_equal);
3152 if ((res = mono_marshal_find_in_cache (cache, sig)))
3156 g_assert (sig->hasthis);
3158 name = mono_signature_to_name (sig, "end_invoke");
3160 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3162 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3166 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3168 mono_mb_emit_ldarg (mb, 0);
3169 mono_mb_emit_ldloc (mb, params_var);
3170 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3172 if (sig->ret->type == MONO_TYPE_VOID) {
3173 mono_mb_emit_byte (mb, CEE_POP);
3174 mono_mb_emit_byte (mb, CEE_RET);
3176 mono_mb_emit_restore_result (mb, sig->ret);
3181 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3182 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3184 res = mono_mb_create_and_cache (cache, sig,
3185 mb, sig, sig->param_count + 16);
3194 MonoMethodSignature *sig;
3196 } SignaturePointerPair;
3199 signature_pointer_pair_hash (gconstpointer data)
3201 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3203 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3207 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3209 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3210 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3214 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3216 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3218 return pair->pointer == user_data;
3222 free_signature_pointer_pair (SignaturePointerPair *pair)
3228 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3230 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3232 MonoMethodBuilder *mb;
3235 gpointer cache_key = NULL;
3236 SignaturePointerPair key;
3237 SignaturePointerPair *new_key;
3238 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3239 int pos0, pos1, pos2;
3241 MonoClass *target_class = NULL;
3242 gboolean closed_over_null = FALSE;
3243 MonoGenericContext *ctx = NULL;
3244 MonoGenericContainer *container = NULL;
3245 MonoMethod *orig_method = NULL;
3247 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3251 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3252 !strcmp (method->name, "Invoke"));
3254 invoke_sig = sig = mono_signature_no_pinvoke (method);
3257 * If the delegate target is null, and the target method is not static, a virtual
3258 * call is made to that method with the first delegate argument as this. This is
3259 * a non-documented .NET feature.
3262 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3263 if (target_method->is_inflated) {
3265 MonoType *target_type;
3267 g_assert (method->signature->hasthis);
3268 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3269 mono_method_get_context (method), &error);
3270 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3271 target_class = mono_class_from_mono_type (target_type);
3273 target_class = target_method->klass;
3276 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3279 if (static_method_with_first_arg_bound) {
3280 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3281 g_assert (!callvirt);
3282 invoke_sig = mono_method_signature (target_method);
3286 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3288 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3289 orig_method = method;
3290 ctx = &((MonoMethodInflated*)method)->context;
3291 method = ((MonoMethodInflated*)method)->declaring;
3293 container = mono_method_get_generic_container (method);
3295 container = method->klass->generic_container;
3296 g_assert (container);
3298 invoke_sig = sig = mono_signature_no_pinvoke (method);
3305 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3306 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3309 cache_key = method->klass;
3310 } else if (static_method_with_first_arg_bound) {
3311 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3312 (GHashFunc)mono_signature_hash,
3313 (GCompareFunc)mono_metadata_signature_equal);
3315 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3317 res = mono_marshal_find_in_cache (cache, invoke_sig);
3320 cache_key = invoke_sig;
3321 } else if (callvirt) {
3322 GHashTable **cache_ptr;
3324 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3326 /* We need to cache the signature+method pair */
3327 mono_marshal_lock ();
3329 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3331 key.sig = invoke_sig;
3332 key.pointer = target_method;
3333 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3334 mono_marshal_unlock ();
3338 // Inflated methods should not be in this cache because it's not stored on the imageset.
3339 g_assert (!method->is_inflated);
3340 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3341 (GHashFunc)mono_signature_hash,
3342 (GCompareFunc)mono_metadata_signature_equal);
3343 res = mono_marshal_find_in_cache (cache, sig);
3349 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3350 static_sig->hasthis = 0;
3351 if (!static_method_with_first_arg_bound)
3352 invoke_sig = static_sig;
3354 if (static_method_with_first_arg_bound)
3355 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3356 else if (closed_over_null)
3357 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3359 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3361 name = mono_signature_to_name (invoke_sig, "invoke");
3363 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3365 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3369 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3371 /* allocate local 0 (object) */
3372 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3373 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3374 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3375 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3376 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3379 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3381 g_assert (sig->hasthis);
3384 * {type: sig->ret} res;
3385 * if (delegates == null) {
3386 * return this.<target> ( args .. );
3388 * int i = 0, len = this.delegates.Length;
3390 * res = this.delegates [i].Invoke ( args .. );
3391 * } while (++i < len);
3396 /* this wrapper can be used in unmanaged-managed transitions */
3397 emit_thread_interrupt_checkpoint (mb);
3399 /* delegates = this.delegates */
3400 mono_mb_emit_ldarg (mb, 0);
3401 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3402 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3403 mono_mb_emit_stloc (mb, local_delegates);
3406 /* if (delegates == null) */
3407 mono_mb_emit_ldloc (mb, local_delegates);
3408 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3410 /* return target.<target_method|method_ptr> ( args .. ); */
3412 /* target = d.target; */
3413 mono_mb_emit_ldarg (mb, 0);
3414 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3415 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3416 mono_mb_emit_stloc (mb, local_target);
3418 /*static methods with bound first arg can have null target and still be bound*/
3419 if (!static_method_with_first_arg_bound) {
3420 /* if target != null */
3421 mono_mb_emit_ldloc (mb, local_target);
3422 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3424 /* then call this->method_ptr nonstatic */
3427 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3429 mono_mb_emit_ldloc (mb, local_target);
3430 for (i = 0; i < sig->param_count; ++i)
3431 mono_mb_emit_ldarg (mb, i + 1);
3432 mono_mb_emit_ldarg (mb, 0);
3433 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3434 mono_mb_emit_byte (mb, CEE_LDIND_I);
3435 mono_mb_emit_ldarg (mb, 0);
3436 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3437 mono_mb_emit_byte (mb, CEE_LDIND_I);
3438 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3439 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3440 mono_mb_emit_byte (mb, CEE_RET);
3443 /* else [target == null] call this->method_ptr static */
3444 mono_mb_patch_branch (mb, pos0);
3448 if (!closed_over_null) {
3449 if (target_class->valuetype) {
3450 mono_mb_emit_ldarg (mb, 1);
3451 for (i = 1; i < sig->param_count; ++i)
3452 mono_mb_emit_ldarg (mb, i + 1);
3453 mono_mb_emit_op (mb, CEE_CALL, target_method);
3455 mono_mb_emit_ldarg (mb, 1);
3456 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3457 for (i = 1; i < sig->param_count; ++i)
3458 mono_mb_emit_ldarg (mb, i + 1);
3459 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3462 mono_mb_emit_byte (mb, CEE_LDNULL);
3463 for (i = 0; i < sig->param_count; ++i)
3464 mono_mb_emit_ldarg (mb, i + 1);
3465 mono_mb_emit_op (mb, CEE_CALL, target_method);
3468 if (static_method_with_first_arg_bound) {
3469 mono_mb_emit_ldloc (mb, local_target);
3470 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3471 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3473 for (i = 0; i < sig->param_count; ++i)
3474 mono_mb_emit_ldarg (mb, i + 1);
3475 mono_mb_emit_ldarg (mb, 0);
3476 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3477 mono_mb_emit_byte (mb, CEE_LDIND_I);
3478 mono_mb_emit_ldarg (mb, 0);
3479 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3480 mono_mb_emit_byte (mb, CEE_LDIND_I);
3481 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3482 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3485 mono_mb_emit_byte (mb, CEE_RET);
3487 /* else [delegates != null] */
3488 mono_mb_patch_branch (mb, pos2);
3490 /* len = delegates.Length; */
3491 mono_mb_emit_ldloc (mb, local_delegates);
3492 mono_mb_emit_byte (mb, CEE_LDLEN);
3493 mono_mb_emit_byte (mb, CEE_CONV_I4);
3494 mono_mb_emit_stloc (mb, local_len);
3497 mono_mb_emit_icon (mb, 0);
3498 mono_mb_emit_stloc (mb, local_i);
3500 pos1 = mono_mb_get_label (mb);
3502 /* d = delegates [i]; */
3503 mono_mb_emit_ldloc (mb, local_delegates);
3504 mono_mb_emit_ldloc (mb, local_i);
3505 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3506 mono_mb_emit_stloc (mb, local_d);
3508 /* res = d.Invoke ( args .. ); */
3509 mono_mb_emit_ldloc (mb, local_d);
3510 for (i = 0; i < sig->param_count; i++)
3511 mono_mb_emit_ldarg (mb, i + 1);
3513 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3516 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3517 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3520 mono_mb_emit_stloc (mb, local_res);
3523 mono_mb_emit_add_to_local (mb, local_i, 1);
3526 mono_mb_emit_ldloc (mb, local_i);
3527 mono_mb_emit_ldloc (mb, local_len);
3528 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3532 mono_mb_emit_ldloc (mb, local_res);
3533 mono_mb_emit_byte (mb, CEE_RET);
3535 mb->skip_visibility = 1;
3536 #endif /* DISABLE_JIT */
3538 info = mono_wrapper_info_create (mb, subtype);
3543 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3544 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3545 } else if (callvirt) {
3546 new_key = g_new0 (SignaturePointerPair, 1);
3549 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3553 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3557 /* mono_method_print_code (res); */
3563 * the returned method invokes all methods in a multicast delegate.
3566 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3568 gboolean callvirt = FALSE;
3569 gboolean static_method_with_first_arg_bound = FALSE;
3570 MonoMethod *target_method = NULL;
3571 MonoMethodSignature *sig;
3573 sig = mono_signature_no_pinvoke (method);
3575 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3577 target_method = del->method;
3580 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3581 static_method_with_first_arg_bound = TRUE;
3582 target_method = del->method;
3585 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3589 MonoMethodSignature *ctor_sig;
3590 MonoMethodSignature *sig;
3593 /* protected by the marshal lock, contains CtorSigPair pointers */
3594 static GSList *strsig_list = NULL;
3596 static MonoMethodSignature *
3597 lookup_string_ctor_signature (MonoMethodSignature *sig)
3599 MonoMethodSignature *callsig;
3603 mono_marshal_lock ();
3605 for (item = strsig_list; item; item = item->next) {
3606 cs = (CtorSigPair *)item->data;
3607 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3608 * because it is lock-free.
3610 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3615 mono_marshal_unlock ();
3619 static MonoMethodSignature *
3620 add_string_ctor_signature (MonoMethod *method)
3622 MonoMethodSignature *callsig;
3625 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3626 callsig->ret = &mono_defaults.string_class->byval_arg;
3627 cs = g_new (CtorSigPair, 1);
3629 cs->ctor_sig = mono_method_signature (method);
3631 mono_marshal_lock ();
3632 strsig_list = g_slist_prepend (strsig_list, cs);
3633 mono_marshal_unlock ();
3638 * mono_marshal_get_string_ctor_signature:
3640 * Return the modified signature used by string ctors (they return the newly created
3643 MonoMethodSignature*
3644 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3646 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3648 sig = add_string_ctor_signature (method);
3654 get_runtime_invoke_type (MonoType *t, gboolean ret)
3657 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3659 /* Can't share this with 'I' as that needs another indirection */
3660 return &mono_defaults.int_class->this_arg;
3663 if (MONO_TYPE_IS_REFERENCE (t))
3664 return &mono_defaults.object_class->byval_arg;
3667 /* The result needs to be boxed */
3672 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3675 return &mono_defaults.sbyte_class->byval_arg;
3677 return &mono_defaults.int16_class->byval_arg;
3679 return &mono_defaults.int32_class->byval_arg;
3682 return &mono_defaults.int64_class->byval_arg;
3683 case MONO_TYPE_BOOLEAN:
3684 return &mono_defaults.byte_class->byval_arg;
3685 case MONO_TYPE_CHAR:
3686 return &mono_defaults.uint16_class->byval_arg;
3688 return &mono_defaults.int_class->byval_arg;
3689 case MONO_TYPE_VALUETYPE:
3690 if (t->data.klass->enumtype) {
3691 t = mono_class_enum_basetype (t->data.klass);
3701 * mono_marshal_get_runtime_invoke_sig:
3703 * Return a common signature used for sharing runtime invoke wrappers.
3705 static MonoMethodSignature*
3706 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3708 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3711 res->generic_param_count = 0;
3712 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3713 for (i = 0; i < res->param_count; ++i)
3714 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3720 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3722 /* Can't share wrappers which return a vtype since it needs to be boxed */
3723 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))
3726 return mono_metadata_signature_equal (sig1, sig2);
3734 * Emit the call to the wrapper method from a runtime invoke wrapper.
3737 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3738 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3740 gboolean virtual_, gboolean need_direct_wrapper)
3742 static MonoString *string_dummy = NULL;
3744 int *tmp_nullable_locals;
3745 gboolean void_ret = FALSE;
3746 gboolean string_ctor = method && method->string_ctor;
3748 /* to make it work with our special string constructors */
3749 if (!string_dummy) {
3750 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3751 string_dummy = mono_string_new_wrapper ("dummy");
3755 g_assert (sig->hasthis);
3756 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3761 if (mono_gc_is_moving ()) {
3762 mono_mb_emit_ptr (mb, &string_dummy);
3763 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3765 mono_mb_emit_ptr (mb, string_dummy);
3768 mono_mb_emit_ldarg (mb, 0);
3772 tmp_nullable_locals = g_new0 (int, sig->param_count);
3774 for (i = 0; i < sig->param_count; i++) {
3775 MonoType *t = sig->params [i];
3778 mono_mb_emit_ldarg (mb, 1);
3780 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3781 mono_mb_emit_byte (mb, CEE_ADD);
3785 mono_mb_emit_byte (mb, CEE_LDIND_I);
3786 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3787 * So to make this work we unbox it to a local variablee and push a reference to that.
3789 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3790 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3792 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3793 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3794 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3799 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3800 type = sig->params [i]->type;
3804 case MONO_TYPE_BOOLEAN:
3808 case MONO_TYPE_CHAR:
3817 mono_mb_emit_byte (mb, CEE_LDIND_I);
3818 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3820 case MONO_TYPE_STRING:
3821 case MONO_TYPE_CLASS:
3822 case MONO_TYPE_ARRAY:
3824 case MONO_TYPE_SZARRAY:
3825 case MONO_TYPE_OBJECT:
3826 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3828 case MONO_TYPE_GENERICINST:
3829 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3830 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3835 case MONO_TYPE_VALUETYPE:
3836 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3837 type = mono_class_enum_basetype (t->data.klass)->type;
3840 mono_mb_emit_byte (mb, CEE_LDIND_I);
3841 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3842 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3843 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3844 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3846 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3850 g_assert_not_reached ();
3855 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3856 } else if (need_direct_wrapper) {
3857 mono_mb_emit_op (mb, CEE_CALL, method);
3859 mono_mb_emit_ldarg (mb, 3);
3860 mono_mb_emit_calli (mb, callsig);
3863 if (sig->ret->byref) {
3865 g_assert_not_reached ();
3868 switch (sig->ret->type) {
3869 case MONO_TYPE_VOID:
3873 case MONO_TYPE_BOOLEAN:
3874 case MONO_TYPE_CHAR:
3887 case MONO_TYPE_VALUETYPE:
3888 case MONO_TYPE_TYPEDBYREF:
3889 case MONO_TYPE_GENERICINST:
3890 /* box value types */
3891 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3893 case MONO_TYPE_STRING:
3894 case MONO_TYPE_CLASS:
3895 case MONO_TYPE_ARRAY:
3896 case MONO_TYPE_SZARRAY:
3897 case MONO_TYPE_OBJECT:
3901 /* The result is an IntPtr */
3902 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3905 g_assert_not_reached ();
3909 mono_mb_emit_stloc (mb, loc_res);
3911 /* Convert back nullable-byref arguments */
3912 for (i = 0; i < sig->param_count; i++) {
3913 MonoType *t = sig->params [i];
3916 * Box the result and put it back into the array, the caller will have
3917 * to obtain it from there.
3919 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3920 mono_mb_emit_ldarg (mb, 1);
3921 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3922 mono_mb_emit_byte (mb, CEE_ADD);
3924 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3925 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3927 mono_mb_emit_byte (mb, CEE_STIND_REF);
3931 g_free (tmp_nullable_locals);
3935 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3936 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3937 gboolean virtual_, gboolean need_direct_wrapper)
3940 MonoExceptionClause *clause;
3941 int loc_res, loc_exc;
3943 /* The wrapper looks like this:
3949 * } catch (Exception e) {
3957 /* allocate local 0 (object) tmp */
3958 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3959 /* allocate local 1 (object) exc */
3960 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3962 /* *exc is assumed to be initialized to NULL by the caller */
3964 mono_mb_emit_byte (mb, CEE_LDARG_2);
3965 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3970 labels [1] = mono_mb_get_label (mb);
3971 emit_thread_force_interrupt_checkpoint (mb);
3972 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3974 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3976 /* Add a try clause around the call */
3977 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3978 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3979 clause->data.catch_class = mono_defaults.exception_class;
3980 clause->try_offset = labels [1];
3981 clause->try_len = mono_mb_get_label (mb) - labels [1];
3983 clause->handler_offset = mono_mb_get_label (mb);
3986 mono_mb_emit_stloc (mb, loc_exc);
3987 mono_mb_emit_byte (mb, CEE_LDARG_2);
3988 mono_mb_emit_ldloc (mb, loc_exc);
3989 mono_mb_emit_byte (mb, CEE_STIND_REF);
3991 mono_mb_emit_branch (mb, CEE_LEAVE);
3993 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3995 mono_mb_set_clauses (mb, 1, clause);
3997 mono_mb_patch_branch (mb, labels [2]);
3998 mono_mb_emit_ldloc (mb, loc_res);
3999 mono_mb_emit_byte (mb, CEE_RET);
4004 mono_mb_patch_branch (mb, labels [0]);
4005 emit_thread_force_interrupt_checkpoint (mb);
4006 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4008 mono_mb_emit_ldloc (mb, 0);
4009 mono_mb_emit_byte (mb, CEE_RET);
4014 * generates IL code for the runtime invoke function
4015 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4017 * we also catch exceptions if exc != null
4018 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4019 * it means that the compiled code for METHOD does not have to be looked up
4020 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4021 * its METHOD argument.
4024 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4026 MonoMethodSignature *sig, *csig, *callsig;
4027 MonoMethodBuilder *mb;
4028 GHashTable *cache = NULL;
4029 MonoClass *target_klass;
4030 MonoMethod *res = NULL;
4031 static MonoMethodSignature *cctor_signature = NULL;
4032 static MonoMethodSignature *finalize_signature = NULL;
4034 const char *param_names [16];
4035 gboolean need_direct_wrapper = FALSE;
4040 if (!cctor_signature) {
4041 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4042 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4044 if (!finalize_signature) {
4045 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4046 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4047 finalize_signature->hasthis = 1;
4051 need_direct_wrapper = TRUE;
4054 * Use a separate cache indexed by methods to speed things up and to avoid the
4055 * boundless mempool growth caused by the signature_dup stuff below.
4058 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4060 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4062 res = mono_marshal_find_in_cache (cache, method);
4066 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4067 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4069 * Array Get/Set/Address methods. The JIT implements them using inline code
4070 * so we need to create an invoke wrapper which calls the method directly.
4072 need_direct_wrapper = TRUE;
4075 if (method->string_ctor) {
4076 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4078 callsig = add_string_ctor_signature (method);
4079 /* Can't share this as we push a string as this */
4080 need_direct_wrapper = TRUE;
4082 if (method_is_dynamic (method))
4083 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4085 callsig = mono_method_signature (method);
4088 sig = mono_method_signature (method);
4090 target_klass = get_wrapper_target_class (method->klass->image);
4092 /* Try to share wrappers for non-corlib methods with simple signatures */
4093 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4094 callsig = cctor_signature;
4095 target_klass = mono_defaults.object_class;
4096 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4097 callsig = finalize_signature;
4098 target_klass = mono_defaults.object_class;
4101 if (need_direct_wrapper) {
4102 /* Already searched at the start */
4104 MonoMethodSignature *tmp_sig;
4106 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4107 GHashTable **cache_table = NULL;
4109 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4110 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4112 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4114 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4115 (GCompareFunc)runtime_invoke_signature_equal);
4117 /* from mono_marshal_find_in_cache */
4118 mono_marshal_lock ();
4119 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4120 mono_marshal_unlock ();
4127 /* Make a copy of the signature from the image mempool */
4129 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4133 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4135 csig->ret = &mono_defaults.object_class->byval_arg;
4136 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4137 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4139 csig->params [0] = &mono_defaults.object_class->byval_arg;
4140 csig->params [1] = &mono_defaults.int_class->byval_arg;
4141 csig->params [2] = &mono_defaults.int_class->byval_arg;
4142 csig->params [3] = &mono_defaults.int_class->byval_arg;
4145 /* This is called from runtime code so it has to be cdecl */
4146 csig->call_convention = MONO_CALL_C;
4149 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4150 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4154 param_names [0] = "this";
4155 param_names [1] = "params";
4156 param_names [2] = "exc";
4157 param_names [3] = "method";
4158 mono_mb_set_param_names (mb, param_names);
4160 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4163 if (need_direct_wrapper) {
4165 mb->skip_visibility = 1;
4167 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4168 info->d.runtime_invoke.method = method;
4169 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4171 /* taken from mono_mb_create_and_cache */
4172 mono_marshal_lock ();
4173 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4174 mono_marshal_unlock ();
4176 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4177 info->d.runtime_invoke.sig = callsig;
4179 /* Somebody may have created it before us */
4182 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4184 mono_marshal_lock ();
4185 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4187 GHashTable *direct_cache;
4189 g_hash_table_insert (cache, callsig, res);
4190 /* Can't insert it into wrapper_hash since the key is a signature */
4191 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4193 g_hash_table_insert (direct_cache, method, res);
4195 mono_free_method (newm);
4197 mono_marshal_unlock ();
4200 /* end mono_mb_create_and_cache */
4209 * mono_marshal_get_runtime_invoke_dynamic:
4211 * Return a method which can be used to invoke managed methods from native code
4213 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4214 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4215 * ARGS should point to an architecture specific structure containing
4216 * the arguments and space for the return value.
4217 * The other arguments are the same as for runtime_invoke (), except that
4218 * ARGS should contain the this argument too.
4219 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4220 * is only one copy of it, which is useful in full-aot.
4221 * The wrapper info for the wrapper is a WrapperInfo structure.
4224 mono_marshal_get_runtime_invoke_dynamic (void)
4226 static MonoMethod *method;
4227 MonoMethodSignature *csig;
4228 MonoExceptionClause *clause;
4229 MonoMethodBuilder *mb;
4237 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4239 csig->ret = &mono_defaults.void_class->byval_arg;
4240 csig->params [0] = &mono_defaults.int_class->byval_arg;
4241 csig->params [1] = &mono_defaults.int_class->byval_arg;
4242 csig->params [2] = &mono_defaults.int_class->byval_arg;
4243 csig->params [3] = &mono_defaults.int_class->byval_arg;
4245 name = g_strdup ("runtime_invoke_dynamic");
4246 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4250 /* allocate local 0 (object) tmp */
4251 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4252 /* allocate local 1 (object) exc */
4253 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4255 /* cond set *exc to null */
4256 mono_mb_emit_byte (mb, CEE_LDARG_1);
4257 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4258 mono_mb_emit_byte (mb, 3);
4259 mono_mb_emit_byte (mb, CEE_LDARG_1);
4260 mono_mb_emit_byte (mb, CEE_LDNULL);
4261 mono_mb_emit_byte (mb, CEE_STIND_REF);
4263 emit_thread_force_interrupt_checkpoint (mb);
4265 mono_mb_emit_byte (mb, CEE_LDARG_0);
4266 mono_mb_emit_byte (mb, CEE_LDARG_2);
4267 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4268 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4270 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4272 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4273 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4274 clause->try_len = mono_mb_get_label (mb);
4277 clause->data.filter_offset = mono_mb_get_label (mb);
4279 mono_mb_emit_byte (mb, CEE_POP);
4280 mono_mb_emit_byte (mb, CEE_LDARG_1);
4281 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4282 mono_mb_emit_byte (mb, CEE_PREFIX1);
4283 mono_mb_emit_byte (mb, CEE_CGT_UN);
4284 mono_mb_emit_byte (mb, CEE_PREFIX1);
4285 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4287 clause->handler_offset = mono_mb_get_label (mb);
4290 /* store exception */
4291 mono_mb_emit_stloc (mb, 1);
4293 mono_mb_emit_byte (mb, CEE_LDARG_1);
4294 mono_mb_emit_ldloc (mb, 1);
4295 mono_mb_emit_byte (mb, CEE_STIND_REF);
4297 mono_mb_emit_byte (mb, CEE_LDNULL);
4298 mono_mb_emit_stloc (mb, 0);
4300 /* Check for the abort exception */
4301 mono_mb_emit_ldloc (mb, 1);
4302 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4303 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4305 /* Delay the abort exception */
4306 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4308 mono_mb_patch_short_branch (mb, posna);
4309 mono_mb_emit_branch (mb, CEE_LEAVE);
4311 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4313 mono_mb_set_clauses (mb, 1, clause);
4316 mono_mb_patch_branch (mb, pos);
4317 //mono_mb_emit_ldloc (mb, 0);
4318 mono_mb_emit_byte (mb, CEE_RET);
4319 #endif /* DISABLE_JIT */
4321 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4323 mono_marshal_lock ();
4324 /* double-checked locking */
4326 method = mono_mb_create (mb, csig, 16, info);
4328 mono_marshal_unlock ();
4336 * mono_marshal_get_runtime_invoke_for_sig:
4338 * Return a runtime invoke wrapper for a given signature.
4341 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4343 MonoMethodSignature *csig, *callsig;
4344 MonoMethodBuilder *mb;
4346 GHashTable *cache = NULL;
4347 GHashTable **cache_table = NULL;
4348 MonoMethod *res = NULL;
4350 const char *param_names [16];
4353 /* A simplified version of mono_marshal_get_runtime_invoke */
4355 image = mono_defaults.corlib;
4357 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4359 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4361 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4362 (GCompareFunc)runtime_invoke_signature_equal);
4364 /* from mono_marshal_find_in_cache */
4365 mono_marshal_lock ();
4366 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4367 mono_marshal_unlock ();
4374 /* Make a copy of the signature from the image mempool */
4375 callsig = mono_metadata_signature_dup_full (image, callsig);
4377 csig = mono_metadata_signature_alloc (image, 4);
4378 csig->ret = &mono_defaults.object_class->byval_arg;
4379 csig->params [0] = &mono_defaults.object_class->byval_arg;
4380 csig->params [1] = &mono_defaults.int_class->byval_arg;
4381 csig->params [2] = &mono_defaults.int_class->byval_arg;
4382 csig->params [3] = &mono_defaults.int_class->byval_arg;
4385 /* This is called from runtime code so it has to be cdecl */
4386 csig->call_convention = MONO_CALL_C;
4389 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4390 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4394 param_names [0] = "this";
4395 param_names [1] = "params";
4396 param_names [2] = "exc";
4397 param_names [3] = "method";
4398 mono_mb_set_param_names (mb, param_names);
4400 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4403 /* taken from mono_mb_create_and_cache */
4404 mono_marshal_lock ();
4405 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4406 mono_marshal_unlock ();
4408 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4409 info->d.runtime_invoke.sig = callsig;
4411 /* Somebody may have created it before us */
4414 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4416 mono_marshal_lock ();
4417 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4420 g_hash_table_insert (cache, callsig, res);
4422 mono_free_method (newm);
4424 mono_marshal_unlock ();
4427 /* end mono_mb_create_and_cache */
4436 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4438 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4439 klass->name_space, klass->name);
4441 mono_mb_emit_exception_marshal_directive (mb, msg);
4446 * generates IL code for the icall wrapper (the generated method
4447 * calls the unmanaged code in func)
4448 * The wrapper info for the wrapper is a WrapperInfo structure.
4451 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4453 MonoMethodSignature *csig, *csig2;
4454 MonoMethodBuilder *mb;
4459 g_assert (sig->pinvoke);
4461 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4463 mb->method->save_lmf = 1;
4465 /* Add an explicit this argument */
4467 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4469 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4473 mono_mb_emit_byte (mb, CEE_LDARG_0);
4475 for (i = 0; i < sig->param_count; i++)
4476 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4478 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4479 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4480 mono_mb_emit_calli (mb, csig2);
4481 if (check_exceptions)
4482 emit_thread_interrupt_checkpoint (mb);
4483 mono_mb_emit_byte (mb, CEE_RET);
4486 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4488 if (csig->call_convention == MONO_CALL_VARARG)
4489 csig->call_convention = 0;
4491 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4492 info->d.icall.func = (gpointer)func;
4493 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4500 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4501 MonoMarshalSpec *spec,
4502 int conv_arg, MonoType **conv_arg_type,
4503 MarshalAction action)
4506 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4507 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4513 static MonoClass *ICustomMarshaler = NULL;
4514 static MonoMethod *cleanup_native, *cleanup_managed;
4515 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4516 MonoMethod *get_instance = NULL;
4517 MonoMethodBuilder *mb = m->mb;
4518 char *exception_msg = NULL;
4522 if (!ICustomMarshaler) {
4523 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4525 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4526 goto handle_exception;
4529 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4530 g_assert (cleanup_native);
4531 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4532 g_assert (cleanup_managed);
4533 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4534 g_assert (marshal_managed_to_native);
4535 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4536 g_assert (marshal_native_to_managed);
4538 mono_memory_barrier ();
4539 ICustomMarshaler = klass;
4542 if (spec->data.custom_data.image)
4543 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4545 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4546 g_assert (mtype != NULL);
4547 mono_error_assert_ok (&error);
4548 mklass = mono_class_from_mono_type (mtype);
4549 g_assert (mklass != NULL);
4551 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4552 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4554 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4556 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4557 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4558 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4559 (get_sig->params [0]->type != MONO_TYPE_STRING))
4560 get_instance = NULL;
4564 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);
4567 /* Throw exception and emit compensation code if neccesary */
4568 if (exception_msg) {
4570 case MARSHAL_ACTION_CONV_IN:
4571 case MARSHAL_ACTION_CONV_RESULT:
4572 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4573 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4574 mono_mb_emit_byte (mb, CEE_POP);
4576 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4577 g_free (exception_msg);
4580 case MARSHAL_ACTION_PUSH:
4581 mono_mb_emit_byte (mb, CEE_LDNULL);
4589 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4590 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4593 case MARSHAL_ACTION_CONV_IN:
4595 case MONO_TYPE_CLASS:
4596 case MONO_TYPE_OBJECT:
4597 case MONO_TYPE_STRING:
4598 case MONO_TYPE_ARRAY:
4599 case MONO_TYPE_SZARRAY:
4600 case MONO_TYPE_VALUETYPE:
4604 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4605 g_assert_not_reached ();
4609 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4611 mono_mb_emit_byte (mb, CEE_LDNULL);
4612 mono_mb_emit_stloc (mb, conv_arg);
4614 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4617 /* Minic MS.NET behavior */
4618 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4621 /* Check for null */
4622 mono_mb_emit_ldarg (mb, argnum);
4624 mono_mb_emit_byte (mb, CEE_LDIND_I);
4625 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4627 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4629 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4631 mono_mb_emit_ldarg (mb, argnum);
4633 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4635 if (t->type == MONO_TYPE_VALUETYPE) {
4637 * Since we can't determine the type of the argument, we
4638 * will assume the unmanaged function takes a pointer.
4640 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4642 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4645 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4646 mono_mb_emit_stloc (mb, conv_arg);
4648 mono_mb_patch_branch (mb, pos2);
4651 case MARSHAL_ACTION_CONV_OUT:
4652 /* Check for null */
4653 mono_mb_emit_ldloc (mb, conv_arg);
4654 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4657 mono_mb_emit_ldarg (mb, argnum);
4659 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4661 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4663 mono_mb_emit_ldloc (mb, conv_arg);
4664 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4665 mono_mb_emit_byte (mb, CEE_STIND_REF);
4666 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4667 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4669 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4671 mono_mb_emit_ldloc (mb, conv_arg);
4672 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4674 /* We have nowhere to store the result */
4675 mono_mb_emit_byte (mb, CEE_POP);
4678 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4680 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4682 mono_mb_emit_ldloc (mb, conv_arg);
4684 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4686 mono_mb_patch_branch (mb, pos2);
4689 case MARSHAL_ACTION_PUSH:
4691 mono_mb_emit_ldloc_addr (mb, conv_arg);
4693 mono_mb_emit_ldloc (mb, conv_arg);
4696 case MARSHAL_ACTION_CONV_RESULT:
4697 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4699 mono_mb_emit_stloc (mb, 3);
4701 mono_mb_emit_ldloc (mb, 3);
4702 mono_mb_emit_stloc (mb, loc1);
4704 /* Check for null */
4705 mono_mb_emit_ldloc (mb, 3);
4706 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4708 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4710 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4711 mono_mb_emit_byte (mb, CEE_DUP);
4713 mono_mb_emit_ldloc (mb, 3);
4714 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4715 mono_mb_emit_stloc (mb, 3);
4717 mono_mb_emit_ldloc (mb, loc1);
4718 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4720 mono_mb_patch_branch (mb, pos2);
4723 case MARSHAL_ACTION_MANAGED_CONV_IN:
4724 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4726 mono_mb_emit_byte (mb, CEE_LDNULL);
4727 mono_mb_emit_stloc (mb, conv_arg);
4729 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4732 /* Check for null */
4733 mono_mb_emit_ldarg (mb, argnum);
4735 mono_mb_emit_byte (mb, CEE_LDIND_I);
4736 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4738 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4739 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4741 mono_mb_emit_ldarg (mb, argnum);
4743 mono_mb_emit_byte (mb, CEE_LDIND_I);
4745 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4746 mono_mb_emit_stloc (mb, conv_arg);
4748 mono_mb_patch_branch (mb, pos2);
4751 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4752 g_assert (!t->byref);
4754 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4756 mono_mb_emit_stloc (mb, 3);
4758 mono_mb_emit_ldloc (mb, 3);
4759 mono_mb_emit_stloc (mb, loc1);
4761 /* Check for null */
4762 mono_mb_emit_ldloc (mb, 3);
4763 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4765 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4766 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4767 mono_mb_emit_byte (mb, CEE_DUP);
4769 mono_mb_emit_ldloc (mb, 3);
4770 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4771 mono_mb_emit_stloc (mb, 3);
4773 mono_mb_emit_ldloc (mb, loc1);
4774 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4776 mono_mb_patch_branch (mb, pos2);
4779 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4781 /* Check for null */
4782 mono_mb_emit_ldloc (mb, conv_arg);
4783 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4786 mono_mb_emit_ldarg (mb, argnum);
4788 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4790 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4792 mono_mb_emit_ldloc (mb, conv_arg);
4793 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4794 mono_mb_emit_byte (mb, CEE_STIND_I);
4797 /* Call CleanUpManagedData */
4798 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4800 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4802 mono_mb_emit_ldloc (mb, conv_arg);
4803 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4805 mono_mb_patch_branch (mb, pos2);
4809 g_assert_not_reached ();
4817 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4818 MonoMarshalSpec *spec,
4819 int conv_arg, MonoType **conv_arg_type,
4820 MarshalAction action)
4823 MonoMethodBuilder *mb = m->mb;
4826 case MARSHAL_ACTION_CONV_IN: {
4827 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4829 g_assert (t->type == MONO_TYPE_OBJECT);
4830 g_assert (!t->byref);
4832 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4833 mono_mb_emit_ldarg (mb, argnum);
4834 mono_mb_emit_icon (mb, encoding);
4835 mono_mb_emit_icon (mb, t->attrs);
4836 mono_mb_emit_icall (mb, mono_marshal_asany);
4837 mono_mb_emit_stloc (mb, conv_arg);
4841 case MARSHAL_ACTION_PUSH:
4842 mono_mb_emit_ldloc (mb, conv_arg);
4845 case MARSHAL_ACTION_CONV_OUT: {
4846 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4848 mono_mb_emit_ldarg (mb, argnum);
4849 mono_mb_emit_ldloc (mb, conv_arg);
4850 mono_mb_emit_icon (mb, encoding);
4851 mono_mb_emit_icon (mb, t->attrs);
4852 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4857 g_assert_not_reached ();
4864 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4865 MonoMarshalSpec *spec,
4866 int conv_arg, MonoType **conv_arg_type,
4867 MarshalAction action)
4870 MonoMethodBuilder *mb = m->mb;
4871 MonoClass *klass, *date_time_class;
4874 klass = mono_class_from_mono_type (t);
4876 date_time_class = mono_class_get_date_time_class ();
4879 case MARSHAL_ACTION_CONV_IN:
4880 if (klass == date_time_class) {
4881 /* Convert it to an OLE DATE type */
4882 static MonoMethod *to_oadate;
4885 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4886 g_assert (to_oadate);
4888 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4891 mono_mb_emit_ldarg (mb, argnum);
4892 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4895 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4897 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4899 mono_mb_emit_ldarg_addr (mb, argnum);
4900 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4901 mono_mb_emit_stloc (mb, conv_arg);
4905 mono_mb_patch_branch (mb, pos);
4909 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4910 klass->blittable || klass->enumtype)
4913 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4915 /* store the address of the source into local variable 0 */
4917 mono_mb_emit_ldarg (mb, argnum);
4919 mono_mb_emit_ldarg_addr (mb, argnum);
4921 mono_mb_emit_stloc (mb, 0);
4923 /* allocate space for the native struct and
4924 * store the address into local variable 1 (dest) */
4925 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4926 mono_mb_emit_byte (mb, CEE_PREFIX1);
4927 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4928 mono_mb_emit_stloc (mb, conv_arg);
4931 mono_mb_emit_ldloc (mb, 0);
4932 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4935 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4937 mono_mb_emit_ldloc (mb, conv_arg);
4938 mono_mb_emit_stloc (mb, 1);
4940 /* emit valuetype conversion code */
4941 emit_struct_conv (mb, klass, FALSE);
4945 mono_mb_patch_branch (mb, pos);
4948 case MARSHAL_ACTION_PUSH:
4949 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4951 g_assert (!t->byref);
4953 /* Have to change the signature since the vtype is passed byref */
4954 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4956 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4957 klass->blittable || klass->enumtype)
4958 mono_mb_emit_ldarg_addr (mb, argnum);
4960 mono_mb_emit_ldloc (mb, conv_arg);
4964 if (klass == date_time_class) {
4966 mono_mb_emit_ldloc_addr (mb, conv_arg);
4968 mono_mb_emit_ldloc (mb, conv_arg);
4972 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4973 klass->blittable || klass->enumtype) {
4974 mono_mb_emit_ldarg (mb, argnum);
4977 mono_mb_emit_ldloc (mb, conv_arg);
4979 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4980 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4984 case MARSHAL_ACTION_CONV_OUT:
4985 if (klass == date_time_class) {
4986 /* Convert from an OLE DATE type */
4987 static MonoMethod *from_oadate;
4992 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4994 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4995 g_assert (from_oadate);
4997 mono_mb_emit_ldarg (mb, argnum);
4998 mono_mb_emit_ldloc (mb, conv_arg);
4999 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5000 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5005 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5006 klass->blittable || klass->enumtype)
5010 /* dst = argument */
5011 mono_mb_emit_ldarg (mb, argnum);
5012 mono_mb_emit_stloc (mb, 1);
5014 mono_mb_emit_ldloc (mb, 1);
5015 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5017 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5018 /* src = tmp_locals [i] */
5019 mono_mb_emit_ldloc (mb, conv_arg);
5020 mono_mb_emit_stloc (mb, 0);
5022 /* emit valuetype conversion code */
5023 emit_struct_conv (mb, klass, TRUE);
5027 emit_struct_free (mb, klass, conv_arg);
5030 mono_mb_patch_branch (mb, pos);
5033 case MARSHAL_ACTION_CONV_RESULT:
5034 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5036 mono_mb_emit_stloc (mb, 3);
5040 /* load pointer to returned value type */
5041 g_assert (m->vtaddr_var);
5042 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5043 /* store the address of the source into local variable 0 */
5044 mono_mb_emit_stloc (mb, 0);
5046 mono_mb_emit_ldloc_addr (mb, 3);
5047 mono_mb_emit_stloc (mb, 1);
5049 /* emit valuetype conversion code */
5050 emit_struct_conv (mb, klass, TRUE);
5053 case MARSHAL_ACTION_MANAGED_CONV_IN:
5054 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5055 klass->blittable || klass->enumtype) {
5060 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5062 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5066 mono_mb_emit_ldarg (mb, argnum);
5068 mono_mb_emit_ldarg_addr (mb, argnum);
5069 mono_mb_emit_stloc (mb, 0);
5072 mono_mb_emit_ldloc (mb, 0);
5073 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5076 mono_mb_emit_ldloc_addr (mb, conv_arg);
5077 mono_mb_emit_stloc (mb, 1);
5079 /* emit valuetype conversion code */
5080 emit_struct_conv (mb, klass, TRUE);
5083 mono_mb_patch_branch (mb, pos);
5086 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5087 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5088 klass->blittable || klass->enumtype) {
5092 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5095 /* Check for null */
5096 mono_mb_emit_ldarg (mb, argnum);
5097 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5100 mono_mb_emit_ldloc_addr (mb, conv_arg);
5101 mono_mb_emit_stloc (mb, 0);
5104 mono_mb_emit_ldarg (mb, argnum);
5105 mono_mb_emit_stloc (mb, 1);
5107 /* emit valuetype conversion code */
5108 emit_struct_conv (mb, klass, FALSE);
5110 mono_mb_patch_branch (mb, pos2);
5113 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5114 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5115 klass->blittable || klass->enumtype) {
5116 mono_mb_emit_stloc (mb, 3);
5121 /* load pointer to returned value type */
5122 g_assert (m->vtaddr_var);
5123 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5125 /* store the address of the source into local variable 0 */
5126 mono_mb_emit_stloc (mb, 0);
5127 /* allocate space for the native struct and
5128 * store the address into dst_ptr */
5129 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5130 m->retobj_class = klass;
5131 g_assert (m->retobj_var);
5132 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5133 mono_mb_emit_byte (mb, CEE_CONV_I);
5134 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5135 mono_mb_emit_stloc (mb, 1);
5136 mono_mb_emit_ldloc (mb, 1);
5137 mono_mb_emit_stloc (mb, m->retobj_var);
5139 /* emit valuetype conversion code */
5140 emit_struct_conv (mb, klass, FALSE);
5144 g_assert_not_reached ();
5151 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5152 MonoMarshalSpec *spec,
5153 int conv_arg, MonoType **conv_arg_type,
5154 MarshalAction action)
5158 case MARSHAL_ACTION_CONV_IN:
5159 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5161 case MARSHAL_ACTION_MANAGED_CONV_IN:
5162 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5166 MonoMethodBuilder *mb = m->mb;
5167 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5168 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5172 case MARSHAL_ACTION_CONV_IN:
5173 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5174 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5177 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5180 mono_mb_emit_ldarg (mb, argnum);
5181 mono_mb_emit_byte (mb, CEE_LDIND_I);
5183 mono_mb_emit_ldarg (mb, argnum);
5186 if (conv == MONO_MARSHAL_CONV_INVALID) {
5187 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5188 mono_mb_emit_exception_marshal_directive (mb, msg);
5190 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5192 mono_mb_emit_stloc (mb, conv_arg);
5196 case MARSHAL_ACTION_CONV_OUT:
5197 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5198 if (conv == MONO_MARSHAL_CONV_INVALID) {
5199 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5200 mono_mb_emit_exception_marshal_directive (mb, msg);
5204 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5205 static MonoMethod *m;
5208 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5213 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5214 mono_mb_emit_exception_marshal_directive (mb, msg);
5219 * Have to allocate a new string with the same length as the original, and
5220 * copy the contents of the buffer pointed to by CONV_ARG into it.
5222 g_assert (t->byref);
5223 mono_mb_emit_ldarg (mb, argnum);
5224 mono_mb_emit_ldloc (mb, conv_arg);
5225 mono_mb_emit_ldarg (mb, argnum);
5226 mono_mb_emit_byte (mb, CEE_LDIND_I);
5227 mono_mb_emit_managed_call (mb, m, NULL);
5228 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5229 mono_mb_emit_byte (mb, CEE_STIND_REF);
5230 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5232 mono_mb_emit_ldarg (mb, argnum);
5233 mono_mb_emit_ldloc (mb, conv_arg);
5234 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5235 mono_mb_emit_byte (mb, stind_op);
5240 mono_mb_emit_ldloc (mb, conv_arg);
5241 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5242 mono_mb_emit_icall (mb, mono_free_bstr);
5244 mono_mb_emit_icall (mb, mono_marshal_free);
5248 case MARSHAL_ACTION_PUSH:
5249 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5250 mono_mb_emit_ldloc_addr (mb, conv_arg);
5252 mono_mb_emit_ldloc (mb, conv_arg);
5255 case MARSHAL_ACTION_CONV_RESULT:
5256 mono_mb_emit_stloc (mb, 0);
5258 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5259 if (conv == MONO_MARSHAL_CONV_INVALID) {
5260 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5261 mono_mb_emit_exception_marshal_directive (mb, msg);
5265 mono_mb_emit_ldloc (mb, 0);
5266 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5267 mono_mb_emit_stloc (mb, 3);
5269 /* free the string */
5270 mono_mb_emit_ldloc (mb, 0);
5271 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5272 mono_mb_emit_icall (mb, mono_free_bstr);
5274 mono_mb_emit_icall (mb, mono_marshal_free);
5277 case MARSHAL_ACTION_MANAGED_CONV_IN:
5278 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5280 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5283 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5287 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5288 if (conv == MONO_MARSHAL_CONV_INVALID) {
5289 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5290 mono_mb_emit_exception_marshal_directive (mb, msg);
5294 mono_mb_emit_ldarg (mb, argnum);
5296 mono_mb_emit_byte (mb, CEE_LDIND_I);
5297 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5298 mono_mb_emit_stloc (mb, conv_arg);
5301 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5305 mono_mb_emit_ldarg (mb, argnum);
5306 mono_mb_emit_ldloc (mb, conv_arg);
5307 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5308 mono_mb_emit_byte (mb, stind_op);
5313 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5314 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5315 /* We need to make a copy so the caller is able to free it */
5316 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5318 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5319 mono_mb_emit_stloc (mb, 3);
5323 g_assert_not_reached ();
5331 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5332 MonoMarshalSpec *spec, int conv_arg,
5333 MonoType **conv_arg_type, MarshalAction action)
5336 if (action == MARSHAL_ACTION_CONV_IN)
5337 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5339 MonoMethodBuilder *mb = m->mb;
5342 case MARSHAL_ACTION_CONV_IN: {
5343 MonoType *intptr_type;
5344 int dar_release_slot, pos;
5346 intptr_type = &mono_defaults.int_class->byval_arg;
5347 conv_arg = mono_mb_add_local (mb, intptr_type);
5348 *conv_arg_type = intptr_type;
5350 if (!sh_dangerous_add_ref)
5351 init_safe_handle ();
5353 mono_mb_emit_ldarg (mb, argnum);
5354 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5355 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5357 mono_mb_patch_branch (mb, pos);
5360 * My tests in show that ref SafeHandles are not really
5361 * passed as ref objects. Instead a NULL is passed as the
5364 mono_mb_emit_icon (mb, 0);
5365 mono_mb_emit_stloc (mb, conv_arg);
5369 /* Create local to hold the ref parameter to DangerousAddRef */
5370 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5372 /* set release = false; */
5373 mono_mb_emit_icon (mb, 0);
5374 mono_mb_emit_stloc (mb, dar_release_slot);
5376 /* safehandle.DangerousAddRef (ref release) */
5377 mono_mb_emit_ldarg (mb, argnum);
5378 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5379 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5381 /* Pull the handle field from SafeHandle */
5382 mono_mb_emit_ldarg (mb, argnum);
5383 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5384 mono_mb_emit_byte (mb, CEE_LDIND_I);
5385 mono_mb_emit_stloc (mb, conv_arg);
5390 case MARSHAL_ACTION_PUSH:
5392 mono_mb_emit_ldloc_addr (mb, conv_arg);
5394 mono_mb_emit_ldloc (mb, conv_arg);
5397 case MARSHAL_ACTION_CONV_OUT: {
5398 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5399 int dar_release_slot = conv_arg + 1;
5402 if (!sh_dangerous_release)
5403 init_safe_handle ();
5409 * My tests indicate that ref SafeHandles parameters are not actually
5410 * passed by ref, but instead a new Handle is created regardless of
5411 * whether a change happens in the unmanaged side.
5413 * Also, the Handle is created before calling into unmanaged code,
5414 * but we do not support that mechanism (getting to the original
5415 * handle) and it makes no difference where we create this
5417 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5419 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5422 /* refval = new SafeHandleDerived ()*/
5423 mono_mb_emit_ldarg (mb, argnum);
5424 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5425 mono_mb_emit_byte (mb, CEE_STIND_REF);
5427 /* refval.handle = returned_handle */
5428 mono_mb_emit_ldarg (mb, argnum);
5429 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5430 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5431 mono_mb_emit_ldloc (mb, conv_arg);
5432 mono_mb_emit_byte (mb, CEE_STIND_I);
5434 mono_mb_emit_ldloc (mb, dar_release_slot);
5435 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5436 mono_mb_emit_ldarg (mb, argnum);
5437 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5438 mono_mb_patch_branch (mb, label_next);
5443 case MARSHAL_ACTION_CONV_RESULT: {
5444 MonoMethod *ctor = NULL;
5445 int intptr_handle_slot;
5447 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5448 mono_mb_emit_byte (mb, CEE_POP);
5449 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5453 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5455 mono_mb_emit_byte (mb, CEE_POP);
5456 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5459 /* Store the IntPtr results into a local */
5460 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5461 mono_mb_emit_stloc (mb, intptr_handle_slot);
5463 /* Create return value */
5464 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5465 mono_mb_emit_stloc (mb, 3);
5467 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5468 mono_mb_emit_ldloc (mb, 3);
5469 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5470 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5471 mono_mb_emit_byte (mb, CEE_STIND_I);
5475 case MARSHAL_ACTION_MANAGED_CONV_IN:
5476 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5479 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5480 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5483 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5484 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5487 printf ("Unhandled case for MarshalAction: %d\n", action);
5495 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5496 MonoMarshalSpec *spec, int conv_arg,
5497 MonoType **conv_arg_type, MarshalAction action)
5500 if (action == MARSHAL_ACTION_CONV_IN)
5501 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5503 MonoMethodBuilder *mb = m->mb;
5506 case MARSHAL_ACTION_CONV_IN: {
5507 MonoType *intptr_type;
5509 intptr_type = &mono_defaults.int_class->byval_arg;
5510 conv_arg = mono_mb_add_local (mb, intptr_type);
5511 *conv_arg_type = intptr_type;
5514 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5515 mono_mb_emit_exception_marshal_directive (mb, msg);
5518 mono_mb_emit_ldarg_addr (mb, argnum);
5519 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5520 mono_mb_emit_byte (mb, CEE_ADD);
5521 mono_mb_emit_byte (mb, CEE_LDIND_I);
5522 mono_mb_emit_stloc (mb, conv_arg);
5526 case MARSHAL_ACTION_PUSH:
5527 mono_mb_emit_ldloc (mb, conv_arg);
5530 case MARSHAL_ACTION_CONV_OUT: {
5531 /* no resource release required */
5535 case MARSHAL_ACTION_CONV_RESULT: {
5536 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5537 mono_mb_emit_exception_marshal_directive (mb, msg);
5541 case MARSHAL_ACTION_MANAGED_CONV_IN:
5542 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5545 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5546 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5549 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5550 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5553 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5561 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5562 MonoMarshalSpec *spec,
5563 int conv_arg, MonoType **conv_arg_type,
5564 MarshalAction action)
5567 if (action == MARSHAL_ACTION_CONV_IN)
5568 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5570 MonoMethodBuilder *mb = m->mb;
5571 MonoClass *klass = mono_class_from_mono_type (t);
5575 case MARSHAL_ACTION_CONV_IN:
5576 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5577 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5579 m->orig_conv_args [argnum] = 0;
5581 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5582 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5583 mono_mb_emit_exception_marshal_directive (mb, msg);
5587 if (klass->delegate) {
5589 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5590 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5591 mono_mb_emit_exception_marshal_directive (mb, msg);
5593 mono_mb_emit_byte (mb, CEE_LDNULL);
5594 mono_mb_emit_stloc (mb, conv_arg);
5596 mono_mb_emit_ldarg (mb, argnum);
5597 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5598 mono_mb_emit_stloc (mb, conv_arg);
5600 } else if (klass == mono_defaults.stringbuilder_class) {
5601 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5602 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5606 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5607 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5608 mono_mb_emit_exception_marshal_directive (mb, msg);
5614 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5617 if (conv == MONO_MARSHAL_CONV_INVALID) {
5618 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5619 mono_mb_emit_exception_marshal_directive (mb, msg);
5623 mono_mb_emit_ldarg (mb, argnum);
5625 mono_mb_emit_byte (mb, CEE_LDIND_I);
5627 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5628 mono_mb_emit_stloc (mb, conv_arg);
5629 } else if (klass->blittable) {
5630 mono_mb_emit_byte (mb, CEE_LDNULL);
5631 mono_mb_emit_stloc (mb, conv_arg);
5633 mono_mb_emit_ldarg (mb, argnum);
5634 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5636 mono_mb_emit_ldarg (mb, argnum);
5637 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5638 mono_mb_emit_stloc (mb, conv_arg);
5640 mono_mb_patch_branch (mb, pos);
5643 mono_mb_emit_byte (mb, CEE_LDNULL);
5644 mono_mb_emit_stloc (mb, conv_arg);
5647 /* we dont need any conversions for out parameters */
5648 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5651 mono_mb_emit_ldarg (mb, argnum);
5652 mono_mb_emit_byte (mb, CEE_LDIND_I);
5655 mono_mb_emit_ldarg (mb, argnum);
5656 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5657 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5660 /* store the address of the source into local variable 0 */
5661 mono_mb_emit_stloc (mb, 0);
5662 mono_mb_emit_ldloc (mb, 0);
5663 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5665 /* allocate space for the native struct and store the address */
5666 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5667 mono_mb_emit_byte (mb, CEE_PREFIX1);
5668 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5669 mono_mb_emit_stloc (mb, conv_arg);
5672 /* Need to store the original buffer so we can free it later */
5673 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5674 mono_mb_emit_ldloc (mb, conv_arg);
5675 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5678 /* set the src_ptr */
5679 mono_mb_emit_ldloc (mb, 0);
5680 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5681 mono_mb_emit_stloc (mb, 0);
5684 mono_mb_emit_ldloc (mb, conv_arg);
5685 mono_mb_emit_stloc (mb, 1);
5687 /* emit valuetype conversion code */
5688 emit_struct_conv (mb, klass, FALSE);
5690 mono_mb_patch_branch (mb, pos);
5694 case MARSHAL_ACTION_CONV_OUT:
5695 if (klass == mono_defaults.stringbuilder_class) {
5697 MonoMarshalNative encoding;
5698 MonoMarshalConv conv;
5700 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5701 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5703 g_assert (encoding != -1);
5706 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5710 mono_mb_emit_ldarg (mb, argnum);
5711 mono_mb_emit_ldloc (mb, conv_arg);
5714 case MONO_NATIVE_LPWSTR:
5715 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5717 case MONO_NATIVE_LPSTR:
5718 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5721 g_assert_not_reached ();
5724 mono_mb_emit_byte (mb, CEE_STIND_REF);
5726 mono_mb_emit_ldarg (mb, argnum);
5727 mono_mb_emit_ldloc (mb, conv_arg);
5729 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5733 mono_mb_emit_ldloc (mb, conv_arg);
5734 mono_mb_emit_icall (mb, mono_marshal_free);
5739 if (klass->delegate) {
5741 mono_mb_emit_ldarg (mb, argnum);
5742 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5743 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5744 mono_mb_emit_ldloc (mb, conv_arg);
5745 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5746 mono_mb_emit_byte (mb, CEE_STIND_REF);
5751 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5752 /* allocate a new object */
5753 mono_mb_emit_ldarg (mb, argnum);
5754 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5755 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5756 mono_mb_emit_byte (mb, CEE_STIND_REF);
5759 /* dst = *argument */
5760 mono_mb_emit_ldarg (mb, argnum);
5763 mono_mb_emit_byte (mb, CEE_LDIND_I);
5765 mono_mb_emit_stloc (mb, 1);
5767 mono_mb_emit_ldloc (mb, 1);
5768 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5770 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5771 mono_mb_emit_ldloc (mb, 1);
5772 mono_mb_emit_icon (mb, sizeof (MonoObject));
5773 mono_mb_emit_byte (mb, CEE_ADD);
5774 mono_mb_emit_stloc (mb, 1);
5776 /* src = tmp_locals [i] */
5777 mono_mb_emit_ldloc (mb, conv_arg);
5778 mono_mb_emit_stloc (mb, 0);
5780 /* emit valuetype conversion code */
5781 emit_struct_conv (mb, klass, TRUE);
5783 /* Free the structure returned by the native code */
5784 emit_struct_free (mb, klass, conv_arg);
5786 if (m->orig_conv_args [argnum]) {
5788 * If the native function changed the pointer, then free
5789 * the original structure plus the new pointer.
5791 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5792 mono_mb_emit_ldloc (mb, conv_arg);
5793 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5795 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5796 g_assert (m->orig_conv_args [argnum]);
5798 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5801 mono_mb_emit_ldloc (mb, conv_arg);
5802 mono_mb_emit_icall (mb, mono_marshal_free);
5804 mono_mb_patch_branch (mb, pos2);
5808 /* Free the original structure passed to native code */
5809 emit_struct_free (mb, klass, conv_arg);
5811 mono_mb_patch_branch (mb, pos);
5814 case MARSHAL_ACTION_PUSH:
5816 mono_mb_emit_ldloc_addr (mb, conv_arg);
5818 mono_mb_emit_ldloc (mb, conv_arg);
5821 case MARSHAL_ACTION_CONV_RESULT:
5822 if (klass->delegate) {
5823 g_assert (!t->byref);
5824 mono_mb_emit_stloc (mb, 0);
5825 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5826 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5827 mono_mb_emit_ldloc (mb, 0);
5828 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5829 mono_mb_emit_stloc (mb, 3);
5832 mono_mb_emit_stloc (mb, 0);
5834 /* Make a copy since emit_conv modifies local 0 */
5835 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5836 mono_mb_emit_ldloc (mb, 0);
5837 mono_mb_emit_stloc (mb, loc);
5839 mono_mb_emit_byte (mb, CEE_LDNULL);
5840 mono_mb_emit_stloc (mb, 3);
5842 mono_mb_emit_ldloc (mb, 0);
5843 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5845 /* allocate result object */
5847 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5848 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5849 mono_mb_emit_stloc (mb, 3);
5853 mono_mb_emit_ldloc (mb, 3);
5854 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5855 mono_mb_emit_stloc (mb, 1);
5857 /* emit conversion code */
5858 emit_struct_conv (mb, klass, TRUE);
5860 emit_struct_free (mb, klass, loc);
5862 /* Free the pointer allocated by unmanaged code */
5863 mono_mb_emit_ldloc (mb, loc);
5864 mono_mb_emit_icall (mb, mono_marshal_free);
5865 mono_mb_patch_branch (mb, pos);
5869 case MARSHAL_ACTION_MANAGED_CONV_IN:
5870 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5872 if (klass->delegate) {
5873 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5874 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5875 mono_mb_emit_ldarg (mb, argnum);
5877 mono_mb_emit_byte (mb, CEE_LDIND_I);
5878 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5879 mono_mb_emit_stloc (mb, conv_arg);
5883 if (klass == mono_defaults.stringbuilder_class) {
5884 MonoMarshalNative encoding;
5886 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5889 g_assert (encoding == MONO_NATIVE_LPSTR);
5891 g_assert (!t->byref);
5892 g_assert (encoding != -1);
5894 mono_mb_emit_ldarg (mb, argnum);
5895 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5896 mono_mb_emit_stloc (mb, conv_arg);
5900 /* The class can not have an automatic layout */
5901 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5902 mono_mb_emit_auto_layout_exception (mb, klass);
5906 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5907 mono_mb_emit_byte (mb, CEE_LDNULL);
5908 mono_mb_emit_stloc (mb, conv_arg);
5913 mono_mb_emit_ldarg (mb, argnum);
5917 /* Check for NULL and raise an exception */
5918 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5920 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5922 mono_mb_patch_branch (mb, pos2);
5923 mono_mb_emit_ldarg (mb, argnum);
5924 mono_mb_emit_byte (mb, CEE_LDIND_I);
5927 mono_mb_emit_stloc (mb, 0);
5929 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5930 mono_mb_emit_stloc (mb, conv_arg);
5932 mono_mb_emit_ldloc (mb, 0);
5933 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5935 /* Create and set dst */
5936 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5937 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5938 mono_mb_emit_stloc (mb, conv_arg);
5939 mono_mb_emit_ldloc (mb, conv_arg);
5940 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5941 mono_mb_emit_stloc (mb, 1);
5943 /* emit valuetype conversion code */
5944 emit_struct_conv (mb, klass, TRUE);
5946 mono_mb_patch_branch (mb, pos);
5949 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5950 if (klass->delegate) {
5953 mono_mb_emit_ldarg (mb, argnum);
5954 mono_mb_emit_ldloc (mb, conv_arg);
5955 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5956 mono_mb_emit_byte (mb, stind_op);
5962 /* Check for null */
5963 mono_mb_emit_ldloc (mb, conv_arg);
5964 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5965 mono_mb_emit_ldarg (mb, argnum);
5966 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5967 mono_mb_emit_byte (mb, CEE_STIND_REF);
5968 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5970 mono_mb_patch_branch (mb, pos);
5973 mono_mb_emit_ldloc (mb, conv_arg);
5974 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5975 mono_mb_emit_stloc (mb, 0);
5977 /* Allocate and set dest */
5978 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5979 mono_mb_emit_byte (mb, CEE_CONV_I);
5980 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5981 mono_mb_emit_stloc (mb, 1);
5983 /* Update argument pointer */
5984 mono_mb_emit_ldarg (mb, argnum);
5985 mono_mb_emit_ldloc (mb, 1);
5986 mono_mb_emit_byte (mb, CEE_STIND_I);
5988 /* emit valuetype conversion code */
5989 emit_struct_conv (mb, klass, FALSE);
5991 mono_mb_patch_branch (mb, pos2);
5992 } else if (klass == mono_defaults.stringbuilder_class) {
5993 // FIXME: What to do here ?
5995 /* byval [Out] marshalling */
5997 /* FIXME: Handle null */
6000 mono_mb_emit_ldloc (mb, conv_arg);
6001 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6002 mono_mb_emit_stloc (mb, 0);
6005 mono_mb_emit_ldarg (mb, argnum);
6006 mono_mb_emit_stloc (mb, 1);
6008 /* emit valuetype conversion code */
6009 emit_struct_conv (mb, klass, FALSE);
6013 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6014 if (klass->delegate) {
6015 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6016 mono_mb_emit_stloc (mb, 3);
6020 /* The class can not have an automatic layout */
6021 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6022 mono_mb_emit_auto_layout_exception (mb, klass);
6026 mono_mb_emit_stloc (mb, 0);
6027 /* Check for null */
6028 mono_mb_emit_ldloc (mb, 0);
6029 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6030 mono_mb_emit_byte (mb, CEE_LDNULL);
6031 mono_mb_emit_stloc (mb, 3);
6032 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6034 mono_mb_patch_branch (mb, pos);
6037 mono_mb_emit_ldloc (mb, 0);
6038 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6039 mono_mb_emit_stloc (mb, 0);
6041 /* Allocate and set dest */
6042 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6043 mono_mb_emit_byte (mb, CEE_CONV_I);
6044 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6045 mono_mb_emit_byte (mb, CEE_DUP);
6046 mono_mb_emit_stloc (mb, 1);
6047 mono_mb_emit_stloc (mb, 3);
6049 emit_struct_conv (mb, klass, FALSE);
6051 mono_mb_patch_branch (mb, pos2);
6055 g_assert_not_reached ();
6066 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6067 MonoMarshalSpec *spec,
6068 int conv_arg, MonoType **conv_arg_type,
6069 MarshalAction action)
6071 MonoMethodBuilder *mb = m->mb;
6072 static MonoMethod *get_object_for_native_variant = NULL;
6073 static MonoMethod *get_native_variant_for_object = NULL;
6075 if (!get_object_for_native_variant)
6076 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6077 g_assert (get_object_for_native_variant);
6079 if (!get_native_variant_for_object)
6080 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6081 g_assert (get_native_variant_for_object);
6084 case MARSHAL_ACTION_CONV_IN: {
6085 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6088 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6090 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6092 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6095 mono_mb_emit_ldarg (mb, argnum);
6097 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6098 mono_mb_emit_ldloc_addr (mb, conv_arg);
6099 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6103 case MARSHAL_ACTION_CONV_OUT: {
6104 static MonoMethod *variant_clear = NULL;
6107 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6108 g_assert (variant_clear);
6111 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6112 mono_mb_emit_ldarg (mb, argnum);
6113 mono_mb_emit_ldloc_addr (mb, conv_arg);
6114 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6115 mono_mb_emit_byte (mb, CEE_STIND_REF);
6118 mono_mb_emit_ldloc_addr (mb, conv_arg);
6119 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6123 case MARSHAL_ACTION_PUSH:
6125 mono_mb_emit_ldloc_addr (mb, conv_arg);
6127 mono_mb_emit_ldloc (mb, conv_arg);
6130 case MARSHAL_ACTION_CONV_RESULT: {
6131 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6132 mono_mb_emit_exception_marshal_directive (mb, msg);
6136 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6137 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6140 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6142 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6144 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6148 mono_mb_emit_ldarg (mb, argnum);
6150 mono_mb_emit_ldarg_addr (mb, argnum);
6151 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6152 mono_mb_emit_stloc (mb, conv_arg);
6156 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6157 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6158 mono_mb_emit_ldloc (mb, conv_arg);
6159 mono_mb_emit_ldarg (mb, argnum);
6160 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6165 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6166 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6167 mono_mb_emit_exception_marshal_directive (mb, msg);
6172 g_assert_not_reached ();
6178 #endif /* DISABLE_COM */
6179 #endif /* DISABLE_JIT */
6182 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6184 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6185 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6187 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6189 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6201 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6202 MonoMarshalSpec *spec,
6203 int conv_arg, MonoType **conv_arg_type,
6204 MarshalAction action)
6208 case MARSHAL_ACTION_CONV_IN:
6209 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6211 case MARSHAL_ACTION_MANAGED_CONV_IN:
6212 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6216 MonoMethodBuilder *mb = m->mb;
6217 MonoClass *klass = mono_class_from_mono_type (t);
6218 gboolean need_convert, need_free;
6219 MonoMarshalNative encoding;
6221 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6224 case MARSHAL_ACTION_CONV_IN:
6225 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6226 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6228 if (klass->element_class->blittable) {
6229 mono_mb_emit_ldarg (mb, argnum);
6231 mono_mb_emit_byte (mb, CEE_LDIND_I);
6232 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6233 mono_mb_emit_stloc (mb, conv_arg);
6236 guint32 label1, label2, label3;
6237 int index_var, src_var, dest_ptr, esize;
6238 MonoMarshalConv conv;
6239 gboolean is_string = FALSE;
6241 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6243 eklass = klass->element_class;
6245 if (eklass == mono_defaults.string_class) {
6247 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6249 else if (eklass == mono_defaults.stringbuilder_class) {
6251 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6254 conv = MONO_MARSHAL_CONV_INVALID;
6256 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6257 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6258 mono_mb_emit_exception_marshal_directive (mb, msg);
6262 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6263 mono_mb_emit_ldarg (mb, argnum);
6265 mono_mb_emit_byte (mb, CEE_LDIND_I);
6266 mono_mb_emit_stloc (mb, src_var);
6269 mono_mb_emit_ldloc (mb, src_var);
6270 mono_mb_emit_stloc (mb, conv_arg);
6271 mono_mb_emit_ldloc (mb, src_var);
6272 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6275 esize = sizeof (gpointer);
6276 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6277 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6279 esize = mono_class_native_size (eklass, NULL);
6281 /* allocate space for the native struct and store the address */
6282 mono_mb_emit_icon (mb, esize);
6283 mono_mb_emit_ldloc (mb, src_var);
6284 mono_mb_emit_byte (mb, CEE_LDLEN);
6286 if (eklass == mono_defaults.string_class) {
6287 /* Make the array bigger for the terminating null */
6288 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6289 mono_mb_emit_byte (mb, CEE_ADD);
6291 mono_mb_emit_byte (mb, CEE_MUL);
6292 mono_mb_emit_byte (mb, CEE_PREFIX1);
6293 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6294 mono_mb_emit_stloc (mb, conv_arg);
6296 mono_mb_emit_ldloc (mb, conv_arg);
6297 mono_mb_emit_stloc (mb, dest_ptr);
6299 /* Emit marshalling loop */
6300 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6301 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6302 mono_mb_emit_stloc (mb, index_var);
6303 label2 = mono_mb_get_label (mb);
6304 mono_mb_emit_ldloc (mb, index_var);
6305 mono_mb_emit_ldloc (mb, src_var);
6306 mono_mb_emit_byte (mb, CEE_LDLEN);
6307 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6309 /* Emit marshalling code */
6313 mono_mb_emit_ldloc (mb, dest_ptr);
6314 mono_mb_emit_ldloc (mb, src_var);
6315 mono_mb_emit_ldloc (mb, index_var);
6316 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6317 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6318 mono_mb_emit_byte (mb, stind_op);
6320 /* set the src_ptr */
6321 mono_mb_emit_ldloc (mb, src_var);
6322 mono_mb_emit_ldloc (mb, index_var);
6323 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6324 mono_mb_emit_stloc (mb, 0);
6327 mono_mb_emit_ldloc (mb, dest_ptr);
6328 mono_mb_emit_stloc (mb, 1);
6330 /* emit valuetype conversion code */
6331 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6334 mono_mb_emit_add_to_local (mb, index_var, 1);
6335 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6337 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6339 mono_mb_patch_branch (mb, label3);
6341 if (eklass == mono_defaults.string_class) {
6342 /* Null terminate */
6343 mono_mb_emit_ldloc (mb, dest_ptr);
6344 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6345 mono_mb_emit_byte (mb, CEE_STIND_REF);
6348 mono_mb_patch_branch (mb, label1);
6353 case MARSHAL_ACTION_CONV_OUT:
6354 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6355 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);
6356 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6359 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6360 int param_num = spec->data.array_data.param_num;
6361 MonoType *param_type;
6363 param_type = m->sig->params [param_num];
6365 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6366 char *msg = g_strdup ("Not implemented.");
6367 mono_mb_emit_exception_marshal_directive (mb, msg);
6372 mono_mb_emit_ldarg (mb, argnum);
6374 /* Create the managed array */
6375 mono_mb_emit_ldarg (mb, param_num);
6376 if (m->sig->params [param_num]->byref)
6377 // FIXME: Support other types
6378 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6379 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6380 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6381 /* Store into argument */
6382 mono_mb_emit_byte (mb, CEE_STIND_REF);
6386 if (need_convert || need_free) {
6387 /* FIXME: Optimize blittable case */
6389 guint32 label1, label2, label3;
6390 int index_var, src_ptr, loc, esize;
6392 eklass = klass->element_class;
6393 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6394 esize = sizeof (gpointer);
6395 else if (eklass == mono_defaults.char_class)
6396 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6398 esize = mono_class_native_size (eklass, NULL);
6399 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6400 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6403 mono_mb_emit_ldarg (mb, argnum);
6405 mono_mb_emit_byte (mb, CEE_LDIND_I);
6406 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6408 mono_mb_emit_ldloc (mb, conv_arg);
6409 mono_mb_emit_stloc (mb, src_ptr);
6411 /* Emit marshalling loop */
6412 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6413 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6414 mono_mb_emit_stloc (mb, index_var);
6415 label2 = mono_mb_get_label (mb);
6416 mono_mb_emit_ldloc (mb, index_var);
6417 mono_mb_emit_ldarg (mb, argnum);
6419 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6420 mono_mb_emit_byte (mb, CEE_LDLEN);
6421 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6423 /* Emit marshalling code */
6425 if (eklass == mono_defaults.stringbuilder_class) {
6426 gboolean need_free2;
6427 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6429 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6432 mono_mb_emit_ldarg (mb, argnum);
6434 mono_mb_emit_byte (mb, CEE_LDIND_I);
6435 mono_mb_emit_ldloc (mb, index_var);
6436 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6439 mono_mb_emit_ldloc (mb, src_ptr);
6440 mono_mb_emit_byte (mb, CEE_LDIND_I);
6442 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6446 mono_mb_emit_ldloc (mb, src_ptr);
6447 mono_mb_emit_byte (mb, CEE_LDIND_I);
6449 mono_mb_emit_icall (mb, mono_marshal_free);
6452 else if (eklass == mono_defaults.string_class) {
6455 mono_mb_emit_ldloc (mb, src_ptr);
6456 mono_mb_emit_byte (mb, CEE_LDIND_I);
6458 mono_mb_emit_icall (mb, mono_marshal_free);
6463 /* set the src_ptr */
6464 mono_mb_emit_ldloc (mb, src_ptr);
6465 mono_mb_emit_stloc (mb, 0);
6468 mono_mb_emit_ldarg (mb, argnum);
6470 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6471 mono_mb_emit_ldloc (mb, index_var);
6472 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6473 mono_mb_emit_stloc (mb, 1);
6475 /* emit valuetype conversion code */
6476 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6480 mono_mb_emit_ldloc (mb, src_ptr);
6481 mono_mb_emit_stloc (mb, loc);
6482 mono_mb_emit_ldloc (mb, loc);
6484 emit_struct_free (mb, eklass, loc);
6488 mono_mb_emit_add_to_local (mb, index_var, 1);
6489 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6491 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6493 mono_mb_patch_branch (mb, label1);
6494 mono_mb_patch_branch (mb, label3);
6497 if (klass->element_class->blittable) {
6498 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6500 mono_mb_emit_ldarg (mb, argnum);
6502 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6503 mono_mb_emit_ldloc (mb, conv_arg);
6504 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6509 case MARSHAL_ACTION_PUSH:
6511 mono_mb_emit_ldloc_addr (mb, conv_arg);
6513 mono_mb_emit_ldloc (mb, conv_arg);
6516 case MARSHAL_ACTION_CONV_RESULT:
6517 /* fixme: we need conversions here */
6518 mono_mb_emit_stloc (mb, 3);
6521 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6523 guint32 label1, label2, label3;
6524 int index_var, src_ptr, esize, param_num, num_elem;
6525 MonoMarshalConv conv;
6526 gboolean is_string = FALSE;
6528 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6529 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6532 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6533 mono_mb_emit_exception_marshal_directive (mb, msg);
6537 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6538 mono_mb_emit_exception_marshal_directive (mb, msg);
6541 if (spec->native != MONO_NATIVE_LPARRAY) {
6542 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6543 mono_mb_emit_exception_marshal_directive (mb, msg);
6547 /* FIXME: t is from the method which is wrapped, not the delegate type */
6548 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6550 param_num = spec->data.array_data.param_num;
6551 num_elem = spec->data.array_data.num_elem;
6552 if (spec->data.array_data.elem_mult == 0)
6553 /* param_num is not specified */
6556 if (param_num == -1) {
6557 if (num_elem <= 0) {
6558 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6559 mono_mb_emit_exception_marshal_directive (mb, msg);
6564 /* FIXME: Optimize blittable case */
6566 eklass = klass->element_class;
6567 if (eklass == mono_defaults.string_class) {
6569 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6571 else if (eklass == mono_defaults.stringbuilder_class) {
6573 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6576 conv = MONO_MARSHAL_CONV_INVALID;
6578 mono_marshal_load_type_info (eklass);
6581 esize = sizeof (gpointer);
6583 esize = mono_class_native_size (eklass, NULL);
6584 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6586 mono_mb_emit_byte (mb, CEE_LDNULL);
6587 mono_mb_emit_stloc (mb, conv_arg);
6589 /* Check param index */
6590 if (param_num != -1) {
6591 if (param_num >= m->sig->param_count) {
6592 char *msg = g_strdup ("Array size control parameter index is out of range.");
6593 mono_mb_emit_exception_marshal_directive (mb, msg);
6596 switch (m->sig->params [param_num]->type) {
6609 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6610 mono_mb_emit_exception_marshal_directive (mb, msg);
6617 mono_mb_emit_ldarg (mb, argnum);
6618 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6620 mono_mb_emit_ldarg (mb, argnum);
6621 mono_mb_emit_stloc (mb, src_ptr);
6623 /* Create managed array */
6625 * The LPArray marshalling spec says that sometimes param_num starts
6626 * from 1, sometimes it starts from 0. But MS seems to allways start
6630 if (param_num == -1) {
6631 mono_mb_emit_icon (mb, num_elem);
6633 mono_mb_emit_ldarg (mb, param_num);
6635 mono_mb_emit_icon (mb, num_elem);
6636 mono_mb_emit_byte (mb, CEE_ADD);
6638 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6641 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6642 mono_mb_emit_stloc (mb, conv_arg);
6644 if (eklass->blittable) {
6645 mono_mb_emit_ldloc (mb, conv_arg);
6646 mono_mb_emit_byte (mb, CEE_CONV_I);
6647 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6648 mono_mb_emit_byte (mb, CEE_ADD);
6649 mono_mb_emit_ldarg (mb, argnum);
6650 mono_mb_emit_ldloc (mb, conv_arg);
6651 mono_mb_emit_byte (mb, CEE_LDLEN);
6652 mono_mb_emit_icon (mb, esize);
6653 mono_mb_emit_byte (mb, CEE_MUL);
6654 mono_mb_emit_byte (mb, CEE_PREFIX1);
6655 mono_mb_emit_byte (mb, CEE_CPBLK);
6659 /* Emit marshalling loop */
6660 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6661 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6662 mono_mb_emit_stloc (mb, index_var);
6663 label2 = mono_mb_get_label (mb);
6664 mono_mb_emit_ldloc (mb, index_var);
6665 mono_mb_emit_ldloc (mb, conv_arg);
6666 mono_mb_emit_byte (mb, CEE_LDLEN);
6667 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6669 /* Emit marshalling code */
6671 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6673 mono_mb_emit_ldloc (mb, conv_arg);
6674 mono_mb_emit_ldloc (mb, index_var);
6676 mono_mb_emit_ldloc (mb, src_ptr);
6677 mono_mb_emit_byte (mb, CEE_LDIND_I);
6679 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6680 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6683 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6684 mono_mb_emit_exception_marshal_directive (mb, msg);
6688 mono_mb_emit_add_to_local (mb, index_var, 1);
6689 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6691 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6693 mono_mb_patch_branch (mb, label1);
6694 mono_mb_patch_branch (mb, label3);
6698 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6700 guint32 label1, label2, label3;
6701 int index_var, dest_ptr, esize, param_num, num_elem;
6702 MonoMarshalConv conv;
6703 gboolean is_string = FALSE;
6706 /* Already handled in CONV_IN */
6709 /* These are already checked in CONV_IN */
6710 g_assert (!t->byref);
6711 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6712 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6714 param_num = spec->data.array_data.param_num;
6715 num_elem = spec->data.array_data.num_elem;
6717 if (spec->data.array_data.elem_mult == 0)
6718 /* param_num is not specified */
6721 if (param_num == -1) {
6722 if (num_elem <= 0) {
6723 g_assert_not_reached ();
6727 /* FIXME: Optimize blittable case */
6729 eklass = klass->element_class;
6730 if (eklass == mono_defaults.string_class) {
6732 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6734 else if (eklass == mono_defaults.stringbuilder_class) {
6736 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6739 conv = MONO_MARSHAL_CONV_INVALID;
6741 mono_marshal_load_type_info (eklass);
6744 esize = sizeof (gpointer);
6746 esize = mono_class_native_size (eklass, NULL);
6748 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6751 mono_mb_emit_ldloc (mb, conv_arg);
6752 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6754 mono_mb_emit_ldarg (mb, argnum);
6755 mono_mb_emit_stloc (mb, dest_ptr);
6757 if (eklass->blittable) {
6759 mono_mb_emit_ldarg (mb, argnum);
6761 mono_mb_emit_ldloc (mb, conv_arg);
6762 mono_mb_emit_byte (mb, CEE_CONV_I);
6763 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6764 mono_mb_emit_byte (mb, CEE_ADD);
6766 mono_mb_emit_ldloc (mb, conv_arg);
6767 mono_mb_emit_byte (mb, CEE_LDLEN);
6768 mono_mb_emit_icon (mb, esize);
6769 mono_mb_emit_byte (mb, CEE_MUL);
6770 mono_mb_emit_byte (mb, CEE_PREFIX1);
6771 mono_mb_emit_byte (mb, CEE_CPBLK);
6775 /* Emit marshalling loop */
6776 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6777 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6778 mono_mb_emit_stloc (mb, index_var);
6779 label2 = mono_mb_get_label (mb);
6780 mono_mb_emit_ldloc (mb, index_var);
6781 mono_mb_emit_ldloc (mb, conv_arg);
6782 mono_mb_emit_byte (mb, CEE_LDLEN);
6783 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6785 /* Emit marshalling code */
6788 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6791 mono_mb_emit_ldloc (mb, dest_ptr);
6794 mono_mb_emit_ldloc (mb, conv_arg);
6795 mono_mb_emit_ldloc (mb, index_var);
6797 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6799 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6800 mono_mb_emit_byte (mb, stind_op);
6803 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6804 mono_mb_emit_exception_marshal_directive (mb, msg);
6808 mono_mb_emit_add_to_local (mb, index_var, 1);
6809 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6811 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6813 mono_mb_patch_branch (mb, label1);
6814 mono_mb_patch_branch (mb, label3);
6818 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6820 guint32 label1, label2, label3;
6821 int index_var, src, dest, esize;
6822 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6823 gboolean is_string = FALSE;
6825 g_assert (!t->byref);
6827 eklass = klass->element_class;
6829 mono_marshal_load_type_info (eklass);
6831 if (eklass == mono_defaults.string_class) {
6833 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6836 g_assert_not_reached ();
6840 esize = sizeof (gpointer);
6841 else if (eklass == mono_defaults.char_class)
6842 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6844 esize = mono_class_native_size (eklass, NULL);
6846 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6847 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6849 mono_mb_emit_stloc (mb, src);
6850 mono_mb_emit_ldloc (mb, src);
6851 mono_mb_emit_stloc (mb, 3);
6853 /* Check for null */
6854 mono_mb_emit_ldloc (mb, src);
6855 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6857 /* Allocate native array */
6858 mono_mb_emit_icon (mb, esize);
6859 mono_mb_emit_ldloc (mb, src);
6860 mono_mb_emit_byte (mb, CEE_LDLEN);
6862 if (eklass == mono_defaults.string_class) {
6863 /* Make the array bigger for the terminating null */
6864 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6865 mono_mb_emit_byte (mb, CEE_ADD);
6867 mono_mb_emit_byte (mb, CEE_MUL);
6868 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6869 mono_mb_emit_stloc (mb, dest);
6870 mono_mb_emit_ldloc (mb, dest);
6871 mono_mb_emit_stloc (mb, 3);
6873 /* Emit marshalling loop */
6874 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6875 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6876 mono_mb_emit_stloc (mb, index_var);
6877 label2 = mono_mb_get_label (mb);
6878 mono_mb_emit_ldloc (mb, index_var);
6879 mono_mb_emit_ldloc (mb, src);
6880 mono_mb_emit_byte (mb, CEE_LDLEN);
6881 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6883 /* Emit marshalling code */
6886 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6889 mono_mb_emit_ldloc (mb, dest);
6892 mono_mb_emit_ldloc (mb, src);
6893 mono_mb_emit_ldloc (mb, index_var);
6895 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6897 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6898 mono_mb_emit_byte (mb, stind_op);
6901 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6902 mono_mb_emit_exception_marshal_directive (mb, msg);
6906 mono_mb_emit_add_to_local (mb, index_var, 1);
6907 mono_mb_emit_add_to_local (mb, dest, esize);
6909 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6911 mono_mb_patch_branch (mb, label3);
6912 mono_mb_patch_branch (mb, label1);
6916 g_assert_not_reached ();
6923 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6926 return &mono_defaults.int32_class->byval_arg;
6928 switch (spec->native) {
6929 case MONO_NATIVE_I1:
6930 case MONO_NATIVE_U1:
6931 return &mono_defaults.byte_class->byval_arg;
6932 case MONO_NATIVE_VARIANTBOOL:
6933 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6934 return &mono_defaults.int16_class->byval_arg;
6935 case MONO_NATIVE_BOOLEAN:
6936 return &mono_defaults.int32_class->byval_arg;
6938 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6939 return &mono_defaults.int32_class->byval_arg;
6945 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6947 MonoClass* conv_arg_class = mono_defaults.int32_class;
6949 switch (spec->native) {
6950 case MONO_NATIVE_I1:
6951 case MONO_NATIVE_U1:
6952 conv_arg_class = mono_defaults.byte_class;
6953 if (ldop) *ldop = CEE_LDIND_I1;
6955 case MONO_NATIVE_VARIANTBOOL:
6956 conv_arg_class = mono_defaults.int16_class;
6957 if (ldop) *ldop = CEE_LDIND_I2;
6959 case MONO_NATIVE_BOOLEAN:
6962 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6965 return conv_arg_class;
6969 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6970 MonoMarshalSpec *spec,
6971 int conv_arg, MonoType **conv_arg_type,
6972 MarshalAction action)
6976 case MARSHAL_ACTION_CONV_IN:
6978 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6980 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6983 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6984 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6986 *conv_arg_type = &conv_arg_class->this_arg;
6988 *conv_arg_type = &conv_arg_class->byval_arg;
6994 MonoMethodBuilder *mb = m->mb;
6997 case MARSHAL_ACTION_CONV_IN: {
6998 MonoType *local_type;
7000 guint8 ldc_op = CEE_LDC_I4_1;
7002 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7004 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7006 *conv_arg_type = local_type;
7007 conv_arg = mono_mb_add_local (mb, local_type);
7009 mono_mb_emit_ldarg (mb, argnum);
7011 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7012 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7013 mono_mb_emit_byte (mb, ldc_op);
7014 mono_mb_emit_stloc (mb, conv_arg);
7015 mono_mb_patch_branch (mb, label_false);
7020 case MARSHAL_ACTION_CONV_OUT:
7022 int label_false, label_end;
7026 mono_mb_emit_ldarg (mb, argnum);
7027 mono_mb_emit_ldloc (mb, conv_arg);
7029 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7030 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7032 label_end = mono_mb_emit_branch (mb, CEE_BR);
7033 mono_mb_patch_branch (mb, label_false);
7034 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7035 mono_mb_patch_branch (mb, label_end);
7037 mono_mb_emit_byte (mb, CEE_STIND_I1);
7041 case MARSHAL_ACTION_PUSH:
7043 mono_mb_emit_ldloc_addr (mb, conv_arg);
7045 mono_mb_emit_ldloc (mb, conv_arg);
7047 mono_mb_emit_ldarg (mb, argnum);
7050 case MARSHAL_ACTION_CONV_RESULT:
7051 /* maybe we need to make sure that it fits within 8 bits */
7052 mono_mb_emit_stloc (mb, 3);
7055 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7056 MonoClass* conv_arg_class = mono_defaults.int32_class;
7057 guint8 ldop = CEE_LDIND_I4;
7058 int label_null, label_false;
7060 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7061 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7064 *conv_arg_type = &conv_arg_class->this_arg;
7066 *conv_arg_type = &conv_arg_class->byval_arg;
7069 mono_mb_emit_ldarg (mb, argnum);
7073 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7074 mono_mb_emit_ldarg (mb, argnum);
7075 mono_mb_emit_byte (mb, ldop);
7079 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7080 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7081 mono_mb_emit_stloc (mb, conv_arg);
7082 mono_mb_patch_branch (mb, label_false);
7085 mono_mb_patch_branch (mb, label_null);
7089 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7090 guint8 stop = CEE_STIND_I4;
7091 guint8 ldc_op = CEE_LDC_I4_1;
7092 int label_null,label_false, label_end;;
7097 switch (spec->native) {
7098 case MONO_NATIVE_I1:
7099 case MONO_NATIVE_U1:
7100 stop = CEE_STIND_I1;
7102 case MONO_NATIVE_VARIANTBOOL:
7103 stop = CEE_STIND_I2;
7104 ldc_op = CEE_LDC_I4_M1;
7112 mono_mb_emit_ldarg (mb, argnum);
7113 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7115 mono_mb_emit_ldarg (mb, argnum);
7116 mono_mb_emit_ldloc (mb, conv_arg);
7118 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7119 mono_mb_emit_byte (mb, ldc_op);
7120 label_end = mono_mb_emit_branch (mb, CEE_BR);
7122 mono_mb_patch_branch (mb, label_false);
7123 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7124 mono_mb_patch_branch (mb, label_end);
7126 mono_mb_emit_byte (mb, stop);
7127 mono_mb_patch_branch (mb, label_null);
7132 g_assert_not_reached ();
7139 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7140 MonoMarshalSpec *spec, int conv_arg,
7141 MonoType **conv_arg_type, MarshalAction action)
7144 MonoMethodBuilder *mb = m->mb;
7147 case MARSHAL_ACTION_CONV_IN:
7148 /* MS seems to allow this in some cases, ie. bxc #158 */
7150 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7151 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7152 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7157 case MARSHAL_ACTION_PUSH:
7158 mono_mb_emit_ldarg (mb, argnum);
7161 case MARSHAL_ACTION_CONV_RESULT:
7162 /* no conversions necessary */
7163 mono_mb_emit_stloc (mb, 3);
7174 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7175 MonoMarshalSpec *spec, int conv_arg,
7176 MonoType **conv_arg_type, MarshalAction action)
7179 MonoMethodBuilder *mb = m->mb;
7182 case MARSHAL_ACTION_PUSH:
7183 /* fixme: dont know how to marshal that. We cant simply
7184 * convert it to a one byte UTF8 character, because an
7185 * unicode character may need more that one byte in UTF8 */
7186 mono_mb_emit_ldarg (mb, argnum);
7189 case MARSHAL_ACTION_CONV_RESULT:
7190 /* fixme: we need conversions here */
7191 mono_mb_emit_stloc (mb, 3);
7202 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7203 MonoMarshalSpec *spec, int conv_arg,
7204 MonoType **conv_arg_type, MarshalAction action)
7207 MonoMethodBuilder *mb = m->mb;
7210 case MARSHAL_ACTION_PUSH:
7211 mono_mb_emit_ldarg (mb, argnum);
7214 case MARSHAL_ACTION_CONV_RESULT:
7215 /* no conversions necessary */
7216 mono_mb_emit_stloc (mb, 3);
7227 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7228 MonoMarshalSpec *spec, int conv_arg,
7229 MonoType **conv_arg_type, MarshalAction action)
7231 /* Ensure that we have marshalling info for this param */
7232 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7234 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7235 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7237 if (spec && spec->native == MONO_NATIVE_ASANY)
7238 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7241 case MONO_TYPE_VALUETYPE:
7242 if (t->data.klass == mono_defaults.handleref_class)
7243 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7245 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7246 case MONO_TYPE_STRING:
7247 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7248 case MONO_TYPE_CLASS:
7249 case MONO_TYPE_OBJECT:
7250 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7251 if (spec && spec->native == MONO_NATIVE_STRUCT)
7252 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7255 #if !defined(DISABLE_COM)
7256 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7257 spec->native == MONO_NATIVE_IDISPATCH ||
7258 spec->native == MONO_NATIVE_INTERFACE))
7259 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7260 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7261 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7262 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7263 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7266 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7267 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7268 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7270 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7271 case MONO_TYPE_ARRAY:
7272 case MONO_TYPE_SZARRAY:
7273 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7274 case MONO_TYPE_BOOLEAN:
7275 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7277 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7278 case MONO_TYPE_CHAR:
7279 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7292 case MONO_TYPE_FNPTR:
7293 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7294 case MONO_TYPE_GENERICINST:
7295 if (mono_type_generic_inst_is_valuetype (t))
7296 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7298 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7306 * mono_marshal_emit_native_wrapper:
7307 * @image: the image to use for looking up custom marshallers
7308 * @sig: The signature of the native function
7309 * @piinfo: Marshalling information
7310 * @mspecs: Marshalling information
7311 * @aot: whenever the created method will be compiled by the AOT compiler
7312 * @method: if non-NULL, the pinvoke method to call
7313 * @check_exceptions: Whenever to check for pending exceptions after the native call
7314 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7316 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7319 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)
7321 EmitMarshalContext m;
7322 MonoMethodSignature *csig;
7324 int i, argnum, *tmp_locals;
7325 int type, param_shift = 0;
7326 static MonoMethodSignature *get_last_error_sig = NULL;
7327 int coop_gc_stack_dummy, coop_gc_var;
7329 memset (&m, 0, sizeof (m));
7334 /* we copy the signature, so that we can set pinvoke to 0 */
7336 /* The function address is passed as the first argument */
7337 g_assert (!sig->hasthis);
7340 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7348 /* we allocate local for use with emit_struct_conv() */
7349 /* allocate local 0 (pointer) src_ptr */
7350 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7351 /* allocate local 1 (pointer) dst_ptr */
7352 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7353 /* allocate local 2 (boolean) delete_old */
7354 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7356 /* delete_old = FALSE */
7357 mono_mb_emit_icon (mb, 0);
7358 mono_mb_emit_stloc (mb, 2);
7360 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7361 /* allocate local 3 to store the return value */
7362 mono_mb_add_local (mb, sig->ret);
7365 if (mono_threads_is_coop_enabled ()) {
7366 /* local 4, dummy local used to get a stack address for suspend funcs */
7367 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7368 /* local 5, the local to be used when calling the suspend funcs */
7369 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7373 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7375 * ret = method (...);
7377 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7384 if (MONO_TYPE_ISSTRUCT (sig->ret))
7385 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7387 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7388 /* Return type custom marshaling */
7390 * Since we can't determine the return type of the unmanaged function,
7391 * we assume it returns a pointer, and pass that pointer to
7392 * MarshalNativeToManaged.
7394 csig->ret = &mono_defaults.int_class->byval_arg;
7397 /* we first do all conversions */
7398 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7399 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7401 for (i = 0; i < sig->param_count; i ++) {
7402 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7405 // In coop mode need to register blocking state during native call
7406 if (mono_threads_is_coop_enabled ()) {
7407 // Perform an extra, early lookup of the function address, so any exceptions
7408 // potentially resulting from the lookup occur before entering blocking mode.
7409 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7410 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7411 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7412 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7415 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7416 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7417 mono_mb_emit_stloc (mb, coop_gc_var);
7420 /* push all arguments */
7423 mono_mb_emit_byte (mb, CEE_LDARG_0);
7425 for (i = 0; i < sig->param_count; i++) {
7426 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7429 /* call the native method */
7431 mono_mb_emit_byte (mb, CEE_LDARG_0);
7432 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7433 mono_mb_emit_byte (mb, CEE_LDIND_I);
7434 mono_mb_emit_calli (mb, csig);
7435 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7437 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7439 g_assert_not_reached ();
7443 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7444 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7445 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7446 mono_mb_emit_calli (mb, csig);
7448 mono_mb_emit_native_call (mb, csig, func);
7452 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7453 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7454 mono_class_init (klass);
7455 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7456 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7457 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7458 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7459 mono_mb_emit_stloc (mb, m.vtaddr_var);
7463 /* Unblock before converting the result, since that can involve calls into the runtime */
7464 if (mono_threads_is_coop_enabled ()) {
7465 mono_mb_emit_ldloc (mb, coop_gc_var);
7466 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7467 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7470 /* Set LastError if needed */
7471 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7472 if (!get_last_error_sig) {
7473 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7474 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7475 get_last_error_sig->pinvoke = 1;
7480 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7481 * clobber its value.
7483 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7484 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7486 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7490 /* convert the result */
7491 if (!sig->ret->byref) {
7492 MonoMarshalSpec *spec = mspecs [0];
7493 type = sig->ret->type;
7495 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7496 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7500 case MONO_TYPE_VOID:
7502 case MONO_TYPE_VALUETYPE:
7503 klass = sig->ret->data.klass;
7504 if (klass->enumtype) {
7505 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7508 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7522 case MONO_TYPE_FNPTR:
7523 case MONO_TYPE_STRING:
7524 case MONO_TYPE_CLASS:
7525 case MONO_TYPE_OBJECT:
7526 case MONO_TYPE_BOOLEAN:
7527 case MONO_TYPE_ARRAY:
7528 case MONO_TYPE_SZARRAY:
7529 case MONO_TYPE_CHAR:
7531 case MONO_TYPE_GENERICINST:
7532 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7534 case MONO_TYPE_TYPEDBYREF:
7536 g_warning ("return type 0x%02x unknown", sig->ret->type);
7537 g_assert_not_reached ();
7541 mono_mb_emit_stloc (mb, 3);
7545 * Need to call this after converting the result since MONO_VTADDR needs
7546 * to be adjacent to the call instruction.
7548 if (check_exceptions)
7549 emit_thread_interrupt_checkpoint (mb);
7551 /* we need to convert byref arguments back and free string arrays */
7552 for (i = 0; i < sig->param_count; i++) {
7553 MonoType *t = sig->params [i];
7554 MonoMarshalSpec *spec = mspecs [i + 1];
7556 argnum = i + param_shift;
7558 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7559 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7564 case MONO_TYPE_STRING:
7565 case MONO_TYPE_VALUETYPE:
7566 case MONO_TYPE_CLASS:
7567 case MONO_TYPE_OBJECT:
7568 case MONO_TYPE_SZARRAY:
7569 case MONO_TYPE_BOOLEAN:
7570 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7577 if (!MONO_TYPE_IS_VOID(sig->ret))
7578 mono_mb_emit_ldloc (mb, 3);
7580 mono_mb_emit_byte (mb, CEE_RET);
7582 #endif /* DISABLE_JIT */
7585 * mono_marshal_get_native_wrapper:
7586 * @method: The MonoMethod to wrap.
7587 * @check_exceptions: Whenever to check for pending exceptions
7589 * generates IL code for the pinvoke wrapper (the generated method
7590 * calls the unmanaged code in piinfo->addr)
7591 * The wrapper info for the wrapper is a WrapperInfo structure.
7594 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7596 MonoMethodSignature *sig, *csig;
7597 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7598 MonoMethodBuilder *mb;
7599 MonoMarshalSpec **mspecs;
7602 gboolean pinvoke = FALSE;
7605 const char *exc_class = "MissingMethodException";
7606 const char *exc_arg = NULL;
7609 g_assert (method != NULL);
7610 g_assert (mono_method_signature (method)->pinvoke);
7612 GHashTable **cache_ptr;
7615 if (check_exceptions)
7616 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7618 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7620 if (check_exceptions)
7621 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7623 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7626 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7628 if ((res = mono_marshal_find_in_cache (cache, method)))
7631 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7632 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7636 return mono_cominterop_get_native_wrapper (method);
7638 g_assert_not_reached ();
7642 sig = mono_method_signature (method);
7644 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7645 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7648 if (!piinfo->addr) {
7650 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7651 exc_arg = "Method contains unsupported native code";
7653 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7655 piinfo->addr = mono_lookup_internal_call (method);
7659 /* hack - redirect certain string constructors to CreateString */
7660 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7661 g_assert (!pinvoke);
7662 g_assert (method->string_ctor);
7663 g_assert (sig->hasthis);
7665 /* CreateString returns a value */
7666 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7667 csig->ret = &mono_defaults.string_class->byval_arg;
7671 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7672 if (!strcmp ("CreateString", res->name) &&
7673 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7676 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7677 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7679 /* create a wrapper to preserve .ctor in stack trace */
7680 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7683 mono_mb_emit_byte (mb, CEE_LDARG_0);
7684 for (i = 1; i <= csig->param_count; i++)
7685 mono_mb_emit_ldarg (mb, i);
7686 mono_mb_emit_managed_call (mb, res, NULL);
7687 mono_mb_emit_byte (mb, CEE_RET);
7690 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7691 info->d.string_ctor.method = method;
7693 /* use native_wrapper_cache because internal calls are looked up there */
7694 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7695 csig->param_count + 1, info, NULL);
7702 /* exception will be thrown */
7703 piinfo->addr = NULL;
7704 g_warning ("cannot find CreateString for .ctor");
7707 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7709 mb->method->save_lmf = 1;
7712 * In AOT mode and embedding scenarios, it is possible that the icall is not
7713 * registered in the runtime doing the AOT compilation.
7715 if (!piinfo->addr && !aot) {
7717 mono_mb_emit_exception (mb, exc_class, exc_arg);
7719 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7720 info->d.managed_to_native.method = method;
7722 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7724 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7725 csig->param_count + 16, info, NULL);
7731 /* internal calls: we simply push all arguments and call the method (no conversions) */
7732 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7734 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7736 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7738 /* hack - string constructors returns a value */
7739 if (method->string_ctor)
7740 csig->ret = &mono_defaults.string_class->byval_arg;
7747 * Add a null check since public icalls can be called with 'call' which
7748 * does no such check.
7750 mono_mb_emit_byte (mb, CEE_LDARG_0);
7751 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7752 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7753 mono_mb_patch_branch (mb, pos);
7755 mono_mb_emit_byte (mb, CEE_LDARG_0);
7758 for (i = 0; i < sig->param_count; i++)
7759 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7762 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7763 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7764 mono_mb_emit_calli (mb, csig);
7766 g_assert (piinfo->addr);
7767 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7769 if (check_exceptions)
7770 emit_thread_interrupt_checkpoint (mb);
7771 mono_mb_emit_byte (mb, CEE_RET);
7773 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7774 info->d.managed_to_native.method = method;
7776 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7778 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7787 g_assert (piinfo->addr);
7790 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7791 mono_method_get_marshal_info (method, mspecs);
7793 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7795 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7796 info->d.managed_to_native.method = method;
7798 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7800 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7805 for (i = sig->param_count; i >= 0; i--)
7807 mono_metadata_free_marshal_spec (mspecs [i]);
7811 /* mono_method_print_code (res); */
7817 * mono_marshal_get_native_func_wrapper:
7818 * @image: The image to use for memory allocation and for looking up custom marshallers.
7819 * @sig: The signature of the function
7820 * @func: The native function to wrap
7822 * Returns a wrapper method around native functions, similar to the pinvoke
7826 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7827 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7829 MonoMethodSignature *csig;
7831 SignaturePointerPair key, *new_key;
7832 MonoMethodBuilder *mb;
7841 // Generic types are not safe to place in MonoImage caches.
7842 g_assert (!sig->is_inflated);
7844 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7845 if ((res = mono_marshal_find_in_cache (cache, &key)))
7848 name = g_strdup_printf ("wrapper_native_%p", func);
7849 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7850 mb->method->save_lmf = 1;
7853 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7856 csig = mono_metadata_signature_dup_full (image, sig);
7859 new_key = g_new (SignaturePointerPair,1);
7860 new_key->sig = csig;
7861 new_key->pointer = func;
7863 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7869 mono_marshal_set_wrapper_info (res, NULL);
7875 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7879 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7881 MonoMethodSignature *sig, *csig;
7882 MonoMethodBuilder *mb;
7887 MonoMethodPInvoke mpiinfo;
7888 MonoMethodPInvoke *piinfo = &mpiinfo;
7889 MonoMarshalSpec **mspecs;
7890 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7891 MonoImage *image = invoke->klass->image;
7894 // FIXME: include UnmanagedFunctionPointerAttribute info
7897 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7899 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7901 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7904 memset (&mpiinfo, 0, sizeof (mpiinfo));
7905 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7907 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7908 mono_method_get_marshal_info (invoke, mspecs);
7909 /* Freed below so don't alloc from mempool */
7910 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7913 name = g_strdup_printf ("wrapper_aot_native");
7914 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7915 mb->method->save_lmf = 1;
7918 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7921 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7922 info->d.managed_to_native.method = invoke;
7924 g_assert (!sig->hasthis);
7925 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7927 res = mono_mb_create_and_cache_full (cache, invoke,
7928 mb, csig, csig->param_count + 16,
7932 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7934 mono_metadata_free_marshal_spec (mspecs [i]);
7942 * mono_marshal_emit_managed_wrapper:
7944 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7945 * the delegate which wraps the managed method to be called. For closed delegates,
7946 * it could have fewer parameters than the method it wraps.
7947 * THIS_LOC is the memory location where the target of the delegate is stored.
7950 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7953 MonoMethodSignature *sig, *csig;
7959 /* we first do all conversions */
7960 for (i = 0; i < sig->param_count; i ++) {
7961 MonoType *t = sig->params [i];
7964 case MONO_TYPE_OBJECT:
7965 case MONO_TYPE_CLASS:
7966 case MONO_TYPE_VALUETYPE:
7967 case MONO_TYPE_ARRAY:
7968 case MONO_TYPE_SZARRAY:
7969 case MONO_TYPE_STRING:
7970 case MONO_TYPE_BOOLEAN:
7971 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7975 if (!sig->ret->byref) {
7976 switch (sig->ret->type) {
7977 case MONO_TYPE_STRING:
7978 csig->ret = &mono_defaults.int_class->byval_arg;
7985 MonoMethodSignature *sig, *csig;
7986 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
7987 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
7988 int leave_try_pos, leave_catch_pos, ex_m1_pos;
7989 gboolean closed = FALSE;
7994 /* allocate local 0 (pointer) src_ptr */
7995 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7996 /* allocate local 1 (pointer) dst_ptr */
7997 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7998 /* allocate local 2 (boolean) delete_old */
7999 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8001 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8002 /* Closed delegate */
8003 g_assert (sig->param_count == invoke_sig->param_count + 1);
8005 /* Use a new signature without the first argument */
8006 sig = mono_metadata_signature_dup (sig);
8007 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8008 sig->param_count --;
8011 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8012 /* allocate local 3 to store the return value */
8013 mono_mb_add_local (mb, sig->ret);
8016 if (MONO_TYPE_ISSTRUCT (sig->ret))
8017 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8019 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8020 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8022 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8023 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8028 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8029 * mono_threads_attach_coop ();
8033 * ret = method (...);
8034 * } catch (Exception e) {
8035 * ex = mono_gchandle_new (e, false);
8037 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8038 * mono_threads_detach_coop ();
8041 * mono_marshal_ftnptr_eh_callback (ex);
8047 clauses = g_new0 (MonoExceptionClause, 2);
8049 clause_catch = &clauses [0];
8050 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8051 clause_catch->data.catch_class = mono_defaults.exception_class;
8053 clause_finally = &clauses [1];
8054 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8056 mono_mb_emit_icon (mb, 0);
8057 mono_mb_emit_stloc (mb, 2);
8059 mono_mb_emit_icon (mb, -1);
8060 mono_mb_emit_byte (mb, CEE_CONV_U4);
8061 mono_mb_emit_stloc (mb, ex_local);
8064 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8066 if (!mono_threads_is_coop_enabled ()) {
8067 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8068 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8070 /* mono_threads_attach_coop (); */
8071 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8072 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8073 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8074 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8075 mono_mb_emit_stloc (mb, attach_cookie_local);
8078 /* <interrupt check> */
8079 emit_thread_interrupt_checkpoint (mb);
8081 /* we first do all conversions */
8082 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8083 for (i = 0; i < sig->param_count; i ++) {
8084 MonoType *t = sig->params [i];
8087 case MONO_TYPE_OBJECT:
8088 case MONO_TYPE_CLASS:
8089 case MONO_TYPE_VALUETYPE:
8090 case MONO_TYPE_ARRAY:
8091 case MONO_TYPE_SZARRAY:
8092 case MONO_TYPE_STRING:
8093 case MONO_TYPE_BOOLEAN:
8094 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8104 if (target_handle) {
8105 mono_mb_emit_icon (mb, (gint32)target_handle);
8106 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8109 g_assert_not_reached ();
8111 } else if (closed) {
8112 mono_mb_emit_icon (mb, (gint32)target_handle);
8113 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8116 for (i = 0; i < sig->param_count; i++) {
8117 MonoType *t = sig->params [i];
8119 if (tmp_locals [i]) {
8121 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8123 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8126 mono_mb_emit_ldarg (mb, i);
8129 /* ret = method (...) */
8130 mono_mb_emit_managed_call (mb, method, NULL);
8132 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8133 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8134 mono_class_init (klass);
8135 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8136 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8137 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8138 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8139 mono_mb_emit_stloc (mb, m->vtaddr_var);
8143 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8144 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8145 } else if (!sig->ret->byref) {
8146 switch (sig->ret->type) {
8147 case MONO_TYPE_VOID:
8149 case MONO_TYPE_BOOLEAN:
8152 case MONO_TYPE_CHAR:
8164 case MONO_TYPE_OBJECT:
8165 mono_mb_emit_stloc (mb, 3);
8167 case MONO_TYPE_STRING:
8168 csig->ret = &mono_defaults.int_class->byval_arg;
8169 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8171 case MONO_TYPE_VALUETYPE:
8172 case MONO_TYPE_CLASS:
8173 case MONO_TYPE_SZARRAY:
8174 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8177 g_warning ("return type 0x%02x unknown", sig->ret->type);
8178 g_assert_not_reached ();
8181 mono_mb_emit_stloc (mb, 3);
8184 /* Convert byref arguments back */
8185 for (i = 0; i < sig->param_count; i ++) {
8186 MonoType *t = sig->params [i];
8187 MonoMarshalSpec *spec = mspecs [i + 1];
8189 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8190 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8192 else if (t->byref) {
8194 case MONO_TYPE_CLASS:
8195 case MONO_TYPE_VALUETYPE:
8196 case MONO_TYPE_OBJECT:
8197 case MONO_TYPE_STRING:
8198 case MONO_TYPE_BOOLEAN:
8199 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8205 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8206 /* The [Out] information is encoded in the delegate signature */
8208 case MONO_TYPE_SZARRAY:
8209 case MONO_TYPE_CLASS:
8210 case MONO_TYPE_VALUETYPE:
8211 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8214 g_assert_not_reached ();
8219 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8223 /* catch (Exception e) { */
8224 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8225 clause_catch->handler_offset = mono_mb_get_label (mb);
8227 mono_mb_emit_stloc (mb, e_local);
8229 /* ex = mono_gchandle_new (e, false); */
8230 mono_mb_emit_ldloc (mb, e_local);
8231 mono_mb_emit_icon (mb, 0);
8232 mono_mb_emit_icall (mb, mono_gchandle_new);
8233 mono_mb_emit_stloc (mb, ex_local);
8235 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8238 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8241 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8242 clause_finally->handler_offset = mono_mb_get_label (mb);
8244 if (!mono_threads_is_coop_enabled ()) {
8245 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8246 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8248 /* mono_threads_detach_coop (); */
8249 mono_mb_emit_ldloc (mb, attach_cookie_local);
8250 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8251 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8255 mono_mb_emit_ldloc (mb, ex_local);
8256 mono_mb_emit_icon (mb, -1);
8257 mono_mb_emit_byte (mb, CEE_CONV_U4);
8258 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8260 /* mono_marshal_ftnptr_eh_callback (ex) */
8261 mono_mb_emit_ldloc (mb, ex_local);
8262 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8265 mono_mb_patch_branch (mb, ex_m1_pos);
8267 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8269 /* } [endfinally] */
8270 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8272 mono_mb_patch_branch (mb, leave_try_pos);
8273 mono_mb_patch_branch (mb, leave_catch_pos);
8276 if (m->retobj_var) {
8277 mono_mb_emit_ldloc (mb, m->retobj_var);
8278 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8279 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8282 if (!MONO_TYPE_IS_VOID(sig->ret))
8283 mono_mb_emit_ldloc (mb, 3);
8284 mono_mb_emit_byte (mb, CEE_RET);
8287 mono_mb_set_clauses (mb, 2, clauses);
8295 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8297 MonoMethodSignature *sig;
8302 * Under windows, delegates passed to native code must use the STDCALL
8303 * calling convention.
8305 csig->call_convention = MONO_CALL_STDCALL;
8308 sig = mono_method_signature (method);
8310 /* Change default calling convention if needed */
8311 /* Why is this a modopt ? */
8312 if (sig->ret && sig->ret->num_mods) {
8313 for (i = 0; i < sig->ret->num_mods; ++i) {
8315 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8316 g_assert (mono_error_ok (&error));
8317 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8318 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8319 csig->call_convention = MONO_CALL_C;
8320 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8321 csig->call_convention = MONO_CALL_STDCALL;
8322 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8323 csig->call_convention = MONO_CALL_FASTCALL;
8324 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8325 csig->call_convention = MONO_CALL_THISCALL;
8332 * generates IL code to call managed methods from unmanaged code
8333 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8336 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8339 MonoMethodSignature *sig, *csig, *invoke_sig;
8340 MonoMethodBuilder *mb;
8341 MonoMethod *res, *invoke;
8342 MonoMarshalSpec **mspecs;
8343 MonoMethodPInvoke piinfo;
8346 EmitMarshalContext m;
8348 g_assert (method != NULL);
8349 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8352 * FIXME: Should cache the method+delegate type pair, since the same method
8353 * could be called with different delegates, thus different marshalling
8356 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8358 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8361 invoke = mono_get_delegate_invoke (delegate_klass);
8362 invoke_sig = mono_method_signature (invoke);
8364 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8365 mono_method_get_marshal_info (invoke, mspecs);
8367 sig = mono_method_signature (method);
8369 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8371 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8372 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8374 /* we copy the signature, so that we can modify it */
8376 /* Need to free this later */
8377 csig = mono_metadata_signature_dup (invoke_sig);
8379 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8383 memset (&m, 0, sizeof (m));
8389 m.image = method->klass->image;
8391 mono_marshal_set_callconv_from_modopt (invoke, csig);
8393 /* The attribute is only available in Net 2.0 */
8394 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8395 MonoCustomAttrInfo *cinfo;
8396 MonoCustomAttrEntry *attr;
8399 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8400 * contents of the attribute without constructing it, as that might not be
8401 * possible when running in cross-compiling mode.
8403 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8404 mono_error_assert_ok (&error);
8407 for (i = 0; i < cinfo->num_attrs; ++i) {
8408 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8409 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8410 attr = &cinfo->attrs [i];
8416 MonoArray *typed_args, *named_args;
8417 CattrNamedArg *arginfo;
8421 MonoBoolean set_last_error = 0;
8424 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8425 g_assert (mono_error_ok (&error));
8426 g_assert (mono_array_length (typed_args) == 1);
8429 o = mono_array_get (typed_args, MonoObject*, 0);
8430 call_conv = *(gint32*)mono_object_unbox (o);
8433 for (i = 0; i < mono_array_length (named_args); ++i) {
8434 CattrNamedArg *narg = &arginfo [i];
8436 o = mono_array_get (named_args, MonoObject*, i);
8438 g_assert (narg->field);
8439 if (!strcmp (narg->field->name, "CharSet")) {
8440 charset = *(gint32*)mono_object_unbox (o);
8441 } else if (!strcmp (narg->field->name, "SetLastError")) {
8442 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8443 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8444 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8445 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8446 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8448 g_assert_not_reached ();
8454 memset (&piinfo, 0, sizeof (piinfo));
8456 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8458 csig->call_convention = call_conv - 1;
8461 if (cinfo && !cinfo->cached)
8462 mono_custom_attrs_free (cinfo);
8465 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8467 if (!target_handle) {
8470 // FIXME: Associate it with the method+delegate_klass pair
8471 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8472 info->d.native_to_managed.method = method;
8473 info->d.native_to_managed.klass = delegate_klass;
8475 res = mono_mb_create_and_cache_full (cache, method,
8476 mb, csig, sig->param_count + 16,
8482 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8486 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8488 mono_metadata_free_marshal_spec (mspecs [i]);
8491 /* mono_method_print_code (res); */
8497 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8501 MonoMethodSignature *sig;
8502 MonoMethodBuilder *mb;
8507 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8509 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8512 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8513 MonoMethodSignature *csig;
8514 MonoMarshalSpec **mspecs;
8515 EmitMarshalContext m;
8517 sig = mono_method_signature (method);
8518 g_assert (!sig->hasthis);
8520 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8521 mono_method_get_marshal_info (method, mspecs);
8523 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8524 csig = mono_metadata_signature_dup_full (image, sig);
8528 memset (&m, 0, sizeof (m));
8536 mono_marshal_set_callconv_from_modopt (method, csig);
8538 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8540 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8545 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8548 for (i = sig->param_count; i >= 0; i--)
8550 mono_metadata_free_marshal_spec (mspecs [i]);
8553 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8554 mono_error_assert_ok (&error);
8555 return compiled_ptr;
8558 sig = mono_method_signature (method);
8559 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8561 param_count = sig->param_count + sig->hasthis;
8563 for (i = 0; i < param_count; i++)
8564 mono_mb_emit_ldarg (mb, i);
8566 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8567 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8569 mono_mb_emit_op (mb, CEE_CALL, method);
8570 mono_mb_emit_byte (mb, CEE_RET);
8575 method = mono_mb_create (mb, sig, param_count, NULL);
8578 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8579 mono_error_assert_ok (&error);
8580 return compiled_ptr;
8586 * The code directly following this is the cache hit, value positive branch
8588 * This function takes a new method builder with 0 locals and adds two locals
8589 * to create multiple out-branches and the fall through state of having the object
8590 * on the stack after a cache miss
8593 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8594 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8595 MonoMethodBuilder *mb)
8599 /* allocate local 0 (pointer) obj_vtable */
8600 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8601 /* allocate local 1 (pointer) cached_vtable */
8602 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8605 mono_mb_emit_ldarg (mb, obj_arg_position);
8606 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8608 /*obj_vtable = obj->vtable;*/
8609 mono_mb_emit_ldarg (mb, obj_arg_position);
8610 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8611 mono_mb_emit_byte (mb, CEE_LDIND_I);
8612 mono_mb_emit_stloc (mb, 0);
8614 /* cached_vtable = *cache*/
8615 mono_mb_emit_ldarg (mb, cache_arg_position);
8616 mono_mb_emit_byte (mb, CEE_LDIND_I);
8617 mono_mb_emit_stloc (mb, 1);
8619 mono_mb_emit_ldloc (mb, 1);
8620 mono_mb_emit_byte (mb, CEE_LDC_I4);
8621 mono_mb_emit_i4 (mb, ~0x1);
8622 mono_mb_emit_byte (mb, CEE_CONV_I);
8623 mono_mb_emit_byte (mb, CEE_AND);
8624 mono_mb_emit_ldloc (mb, 0);
8625 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8626 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8628 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8629 mono_mb_emit_ldloc (mb, 1);
8630 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8631 mono_mb_emit_byte (mb, CEE_CONV_U);
8632 mono_mb_emit_byte (mb, CEE_AND);
8633 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8634 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8637 mono_mb_patch_branch (mb, cache_miss_pos);
8640 mono_mb_emit_ldarg (mb, obj_arg_position);
8641 mono_mb_emit_ldarg (mb, class_arg_position);
8642 mono_mb_emit_ldarg (mb, cache_arg_position);
8643 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8646 #endif /* DISABLE_JIT */
8649 * This does the equivalent of mono_object_castclass_with_cache.
8650 * The wrapper info for the wrapper is a WrapperInfo structure.
8653 mono_marshal_get_castclass_with_cache (void)
8655 static MonoMethod *cached;
8657 MonoMethodBuilder *mb;
8658 MonoMethodSignature *sig;
8659 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8662 const int obj_arg_position = 0;
8663 const int class_arg_position = 1;
8664 const int cache_arg_position = 2;
8669 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8670 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8671 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8672 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8673 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8674 sig->ret = &mono_defaults.object_class->byval_arg;
8678 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8679 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8680 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8683 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8684 mono_mb_emit_ldarg (mb, obj_arg_position);
8685 mono_mb_emit_byte (mb, CEE_RET);
8688 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8689 mono_mb_patch_branch (mb, invalid_cast_pos);
8690 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8693 mono_mb_patch_branch (mb, return_null_pos);
8694 mono_mb_emit_byte (mb, CEE_LDNULL);
8695 mono_mb_emit_byte (mb, CEE_RET);
8696 #endif /* DISABLE_JIT */
8698 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8699 res = mono_mb_create (mb, sig, 8, info);
8702 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8703 mono_free_method (res);
8704 mono_metadata_free_method_signature (sig);
8711 /* this is an icall */
8713 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8716 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8717 if (mono_error_set_pending_exception (&error))
8720 #ifndef DISABLE_REMOTING
8721 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8725 uintptr_t cache_update = (uintptr_t)obj->vtable;
8727 cache_update = cache_update | 0x1;
8729 *cache = cache_update;
8735 * This does the equivalent of mono_object_isinst_with_cache.
8736 * The wrapper info for the wrapper is a WrapperInfo structure.
8739 mono_marshal_get_isinst_with_cache (void)
8741 static MonoMethod *cached;
8743 MonoMethodBuilder *mb;
8744 MonoMethodSignature *sig;
8745 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8748 const int obj_arg_position = 0;
8749 const int class_arg_position = 1;
8750 const int cache_arg_position = 2;
8755 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8756 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8758 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8760 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8762 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8763 sig->ret = &mono_defaults.object_class->byval_arg;
8767 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8768 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8769 // Return the object gotten via the slow path.
8770 mono_mb_emit_byte (mb, CEE_RET);
8773 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8774 mono_mb_patch_branch (mb, return_null_pos);
8775 mono_mb_emit_byte (mb, CEE_LDNULL);
8776 mono_mb_emit_byte (mb, CEE_RET);
8779 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8780 mono_mb_emit_ldarg (mb, obj_arg_position);
8781 mono_mb_emit_byte (mb, CEE_RET);
8784 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8785 res = mono_mb_create (mb, sig, 8, info);
8788 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8789 mono_free_method (res);
8790 mono_metadata_free_method_signature (sig);
8798 * mono_marshal_get_isinst:
8799 * @klass: the type of the field
8801 * This method generates a function which can be used to check if an object is
8802 * an instance of the given type, icluding the case where the object is a proxy.
8803 * The generated function has the following signature:
8804 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8807 mono_marshal_get_isinst (MonoClass *klass)
8809 static MonoMethodSignature *isint_sig = NULL;
8813 int pos_was_ok, pos_end;
8814 #ifndef DISABLE_REMOTING
8815 int pos_end2, pos_failed;
8818 MonoMethodBuilder *mb;
8820 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8821 if ((res = mono_marshal_find_in_cache (cache, klass)))
8825 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8826 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8827 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8828 isint_sig->pinvoke = 0;
8831 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8832 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8835 mb->method->save_lmf = 1;
8838 /* check if the object is a proxy that needs special cast */
8839 mono_mb_emit_ldarg (mb, 0);
8840 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8841 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8843 /* The result of MONO_CISINST can be:
8844 0) the type check succeeded
8845 1) the type check did not succeed
8846 2) a CanCastTo call is needed */
8847 #ifndef DISABLE_REMOTING
8848 mono_mb_emit_byte (mb, CEE_DUP);
8849 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8851 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8852 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8854 /* get the real proxy from the transparent proxy*/
8856 mono_mb_emit_ldarg (mb, 0);
8857 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8858 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8862 mono_mb_patch_branch (mb, pos_failed);
8863 mono_mb_emit_byte (mb, CEE_LDNULL);
8864 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8868 mono_mb_patch_branch (mb, pos_was_ok);
8869 mono_mb_emit_byte (mb, CEE_POP);
8870 mono_mb_emit_ldarg (mb, 0);
8874 mono_mb_patch_branch (mb, pos_end);
8875 mono_mb_patch_branch (mb, pos_end2);
8876 mono_mb_emit_byte (mb, CEE_RET);
8878 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8882 mono_mb_emit_byte (mb, CEE_LDNULL);
8883 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8887 mono_mb_patch_branch (mb, pos_was_ok);
8888 mono_mb_emit_ldarg (mb, 0);
8892 mono_mb_patch_branch (mb, pos_end);
8893 mono_mb_emit_byte (mb, CEE_RET);
8894 #endif /* DISABLE_REMOTING */
8895 #endif /* DISABLE_JIT */
8897 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8898 info->d.proxy.klass = klass;
8899 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8906 * mono_marshal_get_castclass:
8907 * @klass: the type of the field
8909 * This method generates a function which can be used to cast an object to
8910 * an instance of the given type, icluding the case where the object is a proxy.
8911 * The generated function has the following signature:
8912 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8913 * The wrapper info for the wrapper is a WrapperInfo structure.
8916 mono_marshal_get_castclass (MonoClass *klass)
8918 static MonoMethodSignature *castclass_sig = NULL;
8921 #ifndef DISABLE_REMOTING
8922 int pos_was_ok, pos_was_ok2;
8925 MonoMethodBuilder *mb;
8928 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8929 if ((res = mono_marshal_find_in_cache (cache, klass)))
8932 if (!castclass_sig) {
8933 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8934 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8935 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8936 castclass_sig->pinvoke = 0;
8939 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8940 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8943 mb->method->save_lmf = 1;
8946 /* check if the object is a proxy that needs special cast */
8947 mono_mb_emit_ldarg (mb, 0);
8948 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8949 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8951 /* The result of MONO_CCASTCLASS can be:
8952 0) the cast is valid
8953 1) cast of unknown proxy type
8954 or an exception if the cast is is invalid
8956 #ifndef DISABLE_REMOTING
8957 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8959 /* get the real proxy from the transparent proxy*/
8961 mono_mb_emit_ldarg (mb, 0);
8962 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8963 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8966 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8969 mono_mb_patch_branch (mb, pos_was_ok);
8970 mono_mb_patch_branch (mb, pos_was_ok2);
8972 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8973 mono_mb_emit_byte (mb, CEE_POP);
8974 #endif /* DISABLE_REMOTING */
8976 mono_mb_emit_ldarg (mb, 0);
8979 mono_mb_emit_byte (mb, CEE_RET);
8980 #endif /* DISABLE_JIT */
8982 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8984 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8992 * mono_marshal_get_struct_to_ptr:
8995 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8996 * The wrapper info for the wrapper is a WrapperInfo structure.
8999 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9001 MonoMethodBuilder *mb;
9002 static MonoMethod *stoptr = NULL;
9006 g_assert (klass != NULL);
9008 mono_marshal_load_type_info (klass);
9010 if (klass->marshal_info->str_to_ptr)
9011 return klass->marshal_info->str_to_ptr;
9014 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9017 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9020 if (klass->blittable) {
9021 mono_mb_emit_byte (mb, CEE_LDARG_1);
9022 mono_mb_emit_byte (mb, CEE_LDARG_0);
9023 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9024 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9025 mono_mb_emit_byte (mb, CEE_PREFIX1);
9026 mono_mb_emit_byte (mb, CEE_CPBLK);
9029 /* allocate local 0 (pointer) src_ptr */
9030 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9031 /* allocate local 1 (pointer) dst_ptr */
9032 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9033 /* allocate local 2 (boolean) delete_old */
9034 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9035 mono_mb_emit_byte (mb, CEE_LDARG_2);
9036 mono_mb_emit_stloc (mb, 2);
9038 /* initialize src_ptr to point to the start of object data */
9039 mono_mb_emit_byte (mb, CEE_LDARG_0);
9040 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9041 mono_mb_emit_stloc (mb, 0);
9043 /* initialize dst_ptr */
9044 mono_mb_emit_byte (mb, CEE_LDARG_1);
9045 mono_mb_emit_stloc (mb, 1);
9047 emit_struct_conv (mb, klass, FALSE);
9050 mono_mb_emit_byte (mb, CEE_RET);
9052 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9053 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9056 mono_marshal_lock ();
9057 if (!klass->marshal_info->str_to_ptr)
9058 klass->marshal_info->str_to_ptr = res;
9060 res = klass->marshal_info->str_to_ptr;
9061 mono_marshal_unlock ();
9066 * mono_marshal_get_ptr_to_struct:
9069 * generates IL code for PtrToStructure (IntPtr src, object structure)
9070 * The wrapper info for the wrapper is a WrapperInfo structure.
9073 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9075 MonoMethodBuilder *mb;
9076 static MonoMethodSignature *ptostr = NULL;
9080 g_assert (klass != NULL);
9082 mono_marshal_load_type_info (klass);
9084 if (klass->marshal_info->ptr_to_str)
9085 return klass->marshal_info->ptr_to_str;
9088 MonoMethodSignature *sig;
9090 /* Create the signature corresponding to
9091 static void PtrToStructure (IntPtr ptr, object structure);
9092 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9093 sig = mono_create_icall_signature ("void ptr object");
9094 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9096 mono_memory_barrier ();
9100 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9103 if (klass->blittable) {
9104 mono_mb_emit_byte (mb, CEE_LDARG_1);
9105 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9106 mono_mb_emit_byte (mb, CEE_LDARG_0);
9107 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9108 mono_mb_emit_byte (mb, CEE_PREFIX1);
9109 mono_mb_emit_byte (mb, CEE_CPBLK);
9112 /* allocate local 0 (pointer) src_ptr */
9113 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9114 /* allocate local 1 (pointer) dst_ptr */
9115 mono_mb_add_local (mb, &klass->this_arg);
9117 /* initialize src_ptr to point to the start of object data */
9118 mono_mb_emit_byte (mb, CEE_LDARG_0);
9119 mono_mb_emit_stloc (mb, 0);
9121 /* initialize dst_ptr */
9122 mono_mb_emit_byte (mb, CEE_LDARG_1);
9123 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9124 mono_mb_emit_stloc (mb, 1);
9126 emit_struct_conv (mb, klass, TRUE);
9129 mono_mb_emit_byte (mb, CEE_RET);
9131 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9132 res = mono_mb_create (mb, ptostr, 0, info);
9135 mono_marshal_lock ();
9136 if (!klass->marshal_info->ptr_to_str)
9137 klass->marshal_info->ptr_to_str = res;
9139 res = klass->marshal_info->ptr_to_str;
9140 mono_marshal_unlock ();
9145 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9146 * This is used to avoid infinite recursion since it is hard to determine where to
9147 * replace a method with its synchronized wrapper, and where not.
9148 * The runtime should execute METHOD instead of the wrapper.
9149 * The wrapper info for the wrapper is a WrapperInfo structure.
9152 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9154 MonoMethodBuilder *mb;
9156 MonoMethodSignature *sig;
9158 MonoGenericContext *ctx = NULL;
9159 MonoGenericContainer *container = NULL;
9161 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9162 ctx = &((MonoMethodInflated*)method)->context;
9163 method = ((MonoMethodInflated*)method)->declaring;
9164 container = mono_method_get_generic_container (method);
9166 container = method->klass->generic_container;
9167 g_assert (container);
9170 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9172 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9173 mono_mb_emit_byte (mb, CEE_RET);
9175 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9177 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9178 info->d.synchronized_inner.method = method;
9179 res = mono_mb_create (mb, sig, 0, info);
9183 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9184 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9190 * generates IL code for the synchronized wrapper: the generated method
9191 * calls METHOD while locking 'this' or the parent type.
9194 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9196 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9197 MonoMethodSignature *sig;
9198 MonoExceptionClause *clause;
9199 MonoMethodBuilder *mb;
9203 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9204 MonoGenericContext *ctx = NULL;
9205 MonoMethod *orig_method = NULL;
9206 MonoGenericContainer *container = NULL;
9210 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9213 /* FIXME: Support generic methods too */
9214 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9215 orig_method = method;
9216 ctx = &((MonoMethodInflated*)method)->context;
9217 method = ((MonoMethodInflated*)method)->declaring;
9218 container = mono_method_get_generic_container (method);
9220 container = method->klass->generic_container;
9221 g_assert (container);
9228 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9229 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9233 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9234 if ((res = mono_marshal_find_in_cache (cache, method)))
9238 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9241 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9243 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9244 info->d.synchronized.method = method;
9247 mb->skip_visibility = 1;
9249 if (!MONO_TYPE_IS_VOID (sig->ret))
9250 ret_local = mono_mb_add_local (mb, sig->ret);
9253 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9254 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9256 /* This will throw the type load exception when the wrapper is compiled */
9257 mono_mb_emit_byte (mb, CEE_LDNULL);
9258 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9259 mono_mb_emit_byte (mb, CEE_POP);
9261 if (!MONO_TYPE_IS_VOID (sig->ret))
9262 mono_mb_emit_ldloc (mb, ret_local);
9263 mono_mb_emit_byte (mb, CEE_RET);
9266 res = mono_mb_create_and_cache_full (cache, method,
9267 mb, sig, sig->param_count + 16, info, NULL);
9275 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9276 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9278 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9279 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9282 mono_marshal_lock ();
9284 if (!enter_method) {
9285 MonoMethodDesc *desc;
9287 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9288 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9289 g_assert (enter_method);
9290 mono_method_desc_free (desc);
9292 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9293 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9294 g_assert (exit_method);
9295 mono_method_desc_free (desc);
9297 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9298 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9299 g_assert (gettypefromhandle_method);
9300 mono_method_desc_free (desc);
9303 mono_marshal_unlock ();
9306 /* Push this or the type object */
9307 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9308 /* We have special handling for this in the JIT */
9309 int index = mono_mb_add_data (mb, method->klass);
9310 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9311 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9312 mono_mb_emit_i4 (mb, index);
9314 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9317 mono_mb_emit_ldarg (mb, 0);
9318 mono_mb_emit_stloc (mb, this_local);
9320 /* Call Monitor::Enter() */
9321 mono_mb_emit_ldloc (mb, this_local);
9322 mono_mb_emit_ldloc_addr (mb, taken_local);
9323 mono_mb_emit_managed_call (mb, enter_method, NULL);
9325 clause->try_offset = mono_mb_get_label (mb);
9327 /* Call the method */
9329 mono_mb_emit_ldarg (mb, 0);
9330 for (i = 0; i < sig->param_count; i++)
9331 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9335 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9336 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9338 mono_mb_emit_managed_call (mb, method, NULL);
9341 if (!MONO_TYPE_IS_VOID (sig->ret))
9342 mono_mb_emit_stloc (mb, ret_local);
9344 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9346 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9347 clause->handler_offset = mono_mb_get_label (mb);
9349 /* Call Monitor::Exit() if needed */
9350 mono_mb_emit_ldloc (mb, taken_local);
9351 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9352 mono_mb_emit_ldloc (mb, this_local);
9353 mono_mb_emit_managed_call (mb, exit_method, NULL);
9354 mono_mb_patch_branch (mb, pos2);
9355 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9357 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9359 mono_mb_patch_branch (mb, pos);
9360 if (!MONO_TYPE_IS_VOID (sig->ret))
9361 mono_mb_emit_ldloc (mb, ret_local);
9362 mono_mb_emit_byte (mb, CEE_RET);
9364 mono_mb_set_clauses (mb, 1, clause);
9369 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9370 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9372 res = mono_mb_create_and_cache_full (cache, method,
9373 mb, sig, sig->param_count + 16, info, NULL);
9382 * the returned method calls 'method' unboxing the this argument
9385 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9387 MonoMethodSignature *sig = mono_method_signature (method);
9389 MonoMethodBuilder *mb;
9394 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9396 if ((res = mono_marshal_find_in_cache (cache, method)))
9399 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9401 g_assert (sig->hasthis);
9404 mono_mb_emit_ldarg (mb, 0);
9405 mono_mb_emit_icon (mb, sizeof (MonoObject));
9406 mono_mb_emit_byte (mb, CEE_ADD);
9407 for (i = 0; i < sig->param_count; ++i)
9408 mono_mb_emit_ldarg (mb, i + 1);
9409 mono_mb_emit_managed_call (mb, method, NULL);
9410 mono_mb_emit_byte (mb, CEE_RET);
9413 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9414 info->d.unbox.method = method;
9416 res = mono_mb_create_and_cache_full (cache, method,
9417 mb, sig, sig->param_count + 16, info, NULL);
9420 /* mono_method_print_code (res); */
9426 STELEMREF_OBJECT, /*no check at all*/
9427 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9428 STELEMREF_CLASS, /*only the klass->parents check*/
9429 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9430 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9431 STELEMREF_KIND_COUNT
9434 static const char *strelemref_wrapper_name[] = {
9435 "object", "sealed_class", "class", "interface", "complex"
9439 is_monomorphic_array (MonoClass *klass)
9441 MonoClass *element_class;
9442 if (klass->rank != 1)
9445 element_class = klass->element_class;
9446 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9450 get_virtual_stelemref_kind (MonoClass *element_class)
9452 if (element_class == mono_defaults.object_class)
9453 return STELEMREF_OBJECT;
9454 if (is_monomorphic_array (element_class))
9455 return STELEMREF_SEALED_CLASS;
9456 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9457 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9458 #ifdef COMPRESSED_INTERFACE_BITMAP
9459 return STELEMREF_COMPLEX;
9461 return STELEMREF_INTERFACE;
9463 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9464 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9465 return STELEMREF_COMPLEX;
9466 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9467 return STELEMREF_SEALED_CLASS;
9468 return STELEMREF_CLASS;
9474 load_array_element_address (MonoMethodBuilder *mb)
9476 mono_mb_emit_ldarg (mb, 0);
9477 mono_mb_emit_ldarg (mb, 1);
9478 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9482 load_array_class (MonoMethodBuilder *mb, int aklass)
9484 mono_mb_emit_ldarg (mb, 0);
9485 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9486 mono_mb_emit_byte (mb, CEE_LDIND_I);
9487 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9488 mono_mb_emit_byte (mb, CEE_LDIND_I);
9489 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9490 mono_mb_emit_byte (mb, CEE_LDIND_I);
9491 mono_mb_emit_stloc (mb, aklass);
9495 load_value_class (MonoMethodBuilder *mb, int vklass)
9497 mono_mb_emit_ldarg (mb, 2);
9498 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9499 mono_mb_emit_byte (mb, CEE_LDIND_I);
9500 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9501 mono_mb_emit_byte (mb, CEE_LDIND_I);
9502 mono_mb_emit_stloc (mb, vklass);
9508 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9510 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9511 printf ("slow vstore of %s\n", name);
9517 * The wrapper info for the wrapper is a WrapperInfo structure.
9520 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9521 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9522 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9523 * - Add a case for arrays of arrays.
9526 get_virtual_stelemref_wrapper (int kind)
9528 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9529 static MonoMethodSignature *signature;
9530 MonoMethodBuilder *mb;
9533 const char *param_names [16];
9535 int aklass, vklass, vtable, uiid;
9536 int array_slot_addr;
9539 if (cached_methods [kind])
9540 return cached_methods [kind];
9542 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9543 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9547 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9549 /* void this::stelemref (size_t idx, void* value) */
9550 sig->ret = &mono_defaults.void_class->byval_arg;
9551 sig->hasthis = TRUE;
9552 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9553 sig->params [1] = &mono_defaults.object_class->byval_arg;
9558 param_names [0] = "index";
9559 param_names [1] = "value";
9560 mono_mb_set_param_names (mb, param_names);
9562 /*For now simply call plain old stelemref*/
9564 case STELEMREF_OBJECT:
9565 /* ldelema (implicit bound check) */
9566 load_array_element_address (mb);
9568 mono_mb_emit_ldarg (mb, 2);
9569 mono_mb_emit_byte (mb, CEE_STIND_REF);
9570 mono_mb_emit_byte (mb, CEE_RET);
9573 case STELEMREF_COMPLEX:
9575 <ldelema (bound check)>
9578 if (!mono_object_isinst (value, aklass))
9582 *array_slot_addr = value;
9585 throw new ArrayTypeMismatchException ();
9588 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9589 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9593 /*Use this to debug/record stores that are going thru the slow path*/
9594 MonoMethodSignature *csig;
9595 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9596 csig->ret = &mono_defaults.void_class->byval_arg;
9597 csig->params [0] = &mono_defaults.object_class->byval_arg;
9598 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9599 csig->params [2] = &mono_defaults.object_class->byval_arg;
9600 mono_mb_emit_ldarg (mb, 0);
9601 mono_mb_emit_ldarg (mb, 1);
9602 mono_mb_emit_ldarg (mb, 2);
9603 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9607 /* ldelema (implicit bound check) */
9608 load_array_element_address (mb);
9609 mono_mb_emit_stloc (mb, array_slot_addr);
9611 /* if (!value) goto do_store */
9612 mono_mb_emit_ldarg (mb, 2);
9613 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9615 /* aklass = array->vtable->klass->element_class */
9616 load_array_class (mb, aklass);
9618 /*if (mono_object_isinst (value, aklass)) */
9619 mono_mb_emit_ldarg (mb, 2);
9620 mono_mb_emit_ldloc (mb, aklass);
9621 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9622 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9625 mono_mb_patch_branch (mb, b1);
9626 mono_mb_emit_ldloc (mb, array_slot_addr);
9627 mono_mb_emit_ldarg (mb, 2);
9628 mono_mb_emit_byte (mb, CEE_STIND_REF);
9629 mono_mb_emit_byte (mb, CEE_RET);
9632 mono_mb_patch_branch (mb, b2);
9634 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9637 case STELEMREF_SEALED_CLASS:
9639 <ldelema (bound check)>
9643 aklass = array->vtable->klass->element_class;
9644 vklass = value->vtable->klass;
9646 if (vklass != aklass)
9650 *array_slot_addr = value;
9653 throw new ArrayTypeMismatchException ();
9655 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9656 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9657 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9660 /* ldelema (implicit bound check) */
9661 load_array_element_address (mb);
9662 mono_mb_emit_stloc (mb, array_slot_addr);
9664 /* if (!value) goto do_store */
9665 mono_mb_emit_ldarg (mb, 2);
9666 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9668 /* aklass = array->vtable->klass->element_class */
9669 load_array_class (mb, aklass);
9671 /* vklass = value->vtable->klass */
9672 load_value_class (mb, vklass);
9674 /*if (vklass != aklass) goto do_exception; */
9675 mono_mb_emit_ldloc (mb, aklass);
9676 mono_mb_emit_ldloc (mb, vklass);
9677 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9680 mono_mb_patch_branch (mb, b1);
9681 mono_mb_emit_ldloc (mb, array_slot_addr);
9682 mono_mb_emit_ldarg (mb, 2);
9683 mono_mb_emit_byte (mb, CEE_STIND_REF);
9684 mono_mb_emit_byte (mb, CEE_RET);
9687 mono_mb_patch_branch (mb, b2);
9688 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9691 case STELEMREF_CLASS:
9694 <ldelema (bound check)>
9698 aklass = array->vtable->klass->element_class;
9699 vklass = value->vtable->klass;
9701 if (vklass->idepth < aklass->idepth)
9704 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9708 *array_slot_addr = value;
9712 throw new ArrayTypeMismatchException ();
9714 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9715 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9716 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9718 /* ldelema (implicit bound check) */
9719 load_array_element_address (mb);
9720 mono_mb_emit_stloc (mb, array_slot_addr);
9722 /* if (!value) goto do_store */
9723 mono_mb_emit_ldarg (mb, 2);
9724 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9726 /* aklass = array->vtable->klass->element_class */
9727 load_array_class (mb, aklass);
9729 /* vklass = value->vtable->klass */
9730 load_value_class (mb, vklass);
9732 /*if (mono_object_isinst (value, aklass)) */
9733 mono_mb_emit_ldarg (mb, 2);
9734 mono_mb_emit_ldloc (mb, aklass);
9735 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9736 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9738 /* if (vklass->idepth < aklass->idepth) goto failue */
9739 mono_mb_emit_ldloc (mb, vklass);
9740 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9741 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9743 mono_mb_emit_ldloc (mb, aklass);
9744 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9745 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9747 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9749 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9750 mono_mb_emit_ldloc (mb, vklass);
9751 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9752 mono_mb_emit_byte (mb, CEE_LDIND_I);
9754 mono_mb_emit_ldloc (mb, aklass);
9755 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9756 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9757 mono_mb_emit_icon (mb, 1);
9758 mono_mb_emit_byte (mb, CEE_SUB);
9759 mono_mb_emit_icon (mb, sizeof (void*));
9760 mono_mb_emit_byte (mb, CEE_MUL);
9761 mono_mb_emit_byte (mb, CEE_ADD);
9762 mono_mb_emit_byte (mb, CEE_LDIND_I);
9764 mono_mb_emit_ldloc (mb, aklass);
9765 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9768 mono_mb_patch_branch (mb, b1);
9769 mono_mb_emit_ldloc (mb, array_slot_addr);
9770 mono_mb_emit_ldarg (mb, 2);
9771 mono_mb_emit_byte (mb, CEE_STIND_REF);
9772 mono_mb_emit_byte (mb, CEE_RET);
9775 mono_mb_patch_branch (mb, b2);
9776 mono_mb_patch_branch (mb, b3);
9778 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9781 case STELEMREF_INTERFACE:
9788 klass = array->obj.vtable->klass->element_class;
9790 uiid = klass->interface_id;
9791 if (uiid > vt->max_interface_id)
9793 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9796 mono_array_setref (array, index, value);
9799 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9801 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9802 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9803 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9804 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9806 /* ldelema (implicit bound check) */
9807 load_array_element_address (mb);
9808 mono_mb_emit_stloc (mb, array_slot_addr);
9810 /* if (!value) goto do_store */
9811 mono_mb_emit_ldarg (mb, 2);
9812 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9814 /* klass = array->vtable->klass->element_class */
9815 load_array_class (mb, aklass);
9817 /* vt = value->vtable */
9818 mono_mb_emit_ldarg (mb, 2);
9819 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9820 mono_mb_emit_byte (mb, CEE_LDIND_I);
9821 mono_mb_emit_stloc (mb, vtable);
9823 /* uiid = klass->interface_id; */
9824 mono_mb_emit_ldloc (mb, aklass);
9825 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9826 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9827 mono_mb_emit_stloc (mb, uiid);
9829 /*if (uiid > vt->max_interface_id)*/
9830 mono_mb_emit_ldloc (mb, uiid);
9831 mono_mb_emit_ldloc (mb, vtable);
9832 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9833 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9834 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9836 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9838 /*vt->interface_bitmap*/
9839 mono_mb_emit_ldloc (mb, vtable);
9840 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9841 mono_mb_emit_byte (mb, CEE_LDIND_I);
9844 mono_mb_emit_ldloc (mb, uiid);
9845 mono_mb_emit_icon (mb, 3);
9846 mono_mb_emit_byte (mb, CEE_SHR_UN);
9848 /*vt->interface_bitmap [(uiid) >> 3]*/
9849 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9850 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9852 /*(1 << ((uiid)&7)))*/
9853 mono_mb_emit_icon (mb, 1);
9854 mono_mb_emit_ldloc (mb, uiid);
9855 mono_mb_emit_icon (mb, 7);
9856 mono_mb_emit_byte (mb, CEE_AND);
9857 mono_mb_emit_byte (mb, CEE_SHL);
9859 /*bitwise and the whole thing*/
9860 mono_mb_emit_byte (mb, CEE_AND);
9861 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9864 mono_mb_patch_branch (mb, b1);
9865 mono_mb_emit_ldloc (mb, array_slot_addr);
9866 mono_mb_emit_ldarg (mb, 2);
9867 mono_mb_emit_byte (mb, CEE_STIND_REF);
9868 mono_mb_emit_byte (mb, CEE_RET);
9871 mono_mb_patch_branch (mb, b2);
9872 mono_mb_patch_branch (mb, b3);
9873 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9877 mono_mb_emit_ldarg (mb, 0);
9878 mono_mb_emit_ldarg (mb, 1);
9879 mono_mb_emit_ldarg (mb, 2);
9880 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9881 mono_mb_emit_byte (mb, CEE_RET);
9884 #endif /* DISABLE_JIT */
9885 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9886 info->d.virtual_stelemref.kind = kind;
9887 res = mono_mb_create (mb, signature, 4, info);
9888 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9890 mono_marshal_lock ();
9891 if (!cached_methods [kind]) {
9892 cached_methods [kind] = res;
9893 mono_marshal_unlock ();
9895 mono_marshal_unlock ();
9896 mono_free_method (res);
9900 return cached_methods [kind];
9904 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9908 g_assert (array_class->rank == 1);
9909 kind = get_virtual_stelemref_kind (array_class->element_class);
9911 return get_virtual_stelemref_wrapper (kind);
9915 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9920 *nwrappers = STELEMREF_KIND_COUNT;
9921 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9922 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9923 res [i] = get_virtual_stelemref_wrapper (i);
9928 * The wrapper info for the wrapper is a WrapperInfo structure.
9931 mono_marshal_get_stelemref (void)
9933 static MonoMethod* ret = NULL;
9934 MonoMethodSignature *sig;
9935 MonoMethodBuilder *mb;
9938 guint32 b1, b2, b3, b4;
9941 int array_slot_addr;
9946 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9949 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9951 /* void stelemref (void* array, int idx, void* value) */
9952 sig->ret = &mono_defaults.void_class->byval_arg;
9953 sig->params [0] = &mono_defaults.object_class->byval_arg;
9954 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9955 sig->params [2] = &mono_defaults.object_class->byval_arg;
9958 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9959 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9960 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9964 <ldelema (bound check)>
9968 aklass = array->vtable->klass->element_class;
9969 vklass = value->vtable->klass;
9971 if (vklass->idepth < aklass->idepth)
9974 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9978 *array_slot_addr = value;
9982 if (mono_object_isinst (value, aklass))
9985 throw new ArrayTypeMismatchException ();
9988 /* ldelema (implicit bound check) */
9989 mono_mb_emit_ldarg (mb, 0);
9990 mono_mb_emit_ldarg (mb, 1);
9991 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9992 mono_mb_emit_stloc (mb, array_slot_addr);
9994 /* if (!value) goto do_store */
9995 mono_mb_emit_ldarg (mb, 2);
9996 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9998 /* aklass = array->vtable->klass->element_class */
9999 mono_mb_emit_ldarg (mb, 0);
10000 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10001 mono_mb_emit_byte (mb, CEE_LDIND_I);
10002 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10003 mono_mb_emit_byte (mb, CEE_LDIND_I);
10004 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10005 mono_mb_emit_byte (mb, CEE_LDIND_I);
10006 mono_mb_emit_stloc (mb, aklass);
10008 /* vklass = value->vtable->klass */
10009 mono_mb_emit_ldarg (mb, 2);
10010 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10011 mono_mb_emit_byte (mb, CEE_LDIND_I);
10012 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10013 mono_mb_emit_byte (mb, CEE_LDIND_I);
10014 mono_mb_emit_stloc (mb, vklass);
10016 /* if (vklass->idepth < aklass->idepth) goto failue */
10017 mono_mb_emit_ldloc (mb, vklass);
10018 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10019 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10021 mono_mb_emit_ldloc (mb, aklass);
10022 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10023 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10025 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10027 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10028 mono_mb_emit_ldloc (mb, vklass);
10029 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10030 mono_mb_emit_byte (mb, CEE_LDIND_I);
10032 mono_mb_emit_ldloc (mb, aklass);
10033 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10034 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10035 mono_mb_emit_icon (mb, 1);
10036 mono_mb_emit_byte (mb, CEE_SUB);
10037 mono_mb_emit_icon (mb, sizeof (void*));
10038 mono_mb_emit_byte (mb, CEE_MUL);
10039 mono_mb_emit_byte (mb, CEE_ADD);
10040 mono_mb_emit_byte (mb, CEE_LDIND_I);
10042 mono_mb_emit_ldloc (mb, aklass);
10044 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10046 copy_pos = mono_mb_get_label (mb);
10048 mono_mb_patch_branch (mb, b1);
10049 mono_mb_emit_ldloc (mb, array_slot_addr);
10050 mono_mb_emit_ldarg (mb, 2);
10051 mono_mb_emit_byte (mb, CEE_STIND_REF);
10053 mono_mb_emit_byte (mb, CEE_RET);
10056 mono_mb_patch_branch (mb, b2);
10057 mono_mb_patch_branch (mb, b3);
10059 mono_mb_emit_ldarg (mb, 2);
10060 mono_mb_emit_ldloc (mb, aklass);
10061 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10063 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10064 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10065 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10067 mono_mb_emit_byte (mb, CEE_RET);
10069 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10070 ret = mono_mb_create (mb, sig, 4, info);
10077 * mono_marshal_get_gsharedvt_in_wrapper:
10079 * This wrapper handles calls from normal code to gsharedvt code.
10081 * The wrapper info for the wrapper is a WrapperInfo structure.
10084 mono_marshal_get_gsharedvt_in_wrapper (void)
10086 static MonoMethod* ret = NULL;
10087 MonoMethodSignature *sig;
10088 MonoMethodBuilder *mb;
10094 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10096 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10097 sig->ret = &mono_defaults.void_class->byval_arg;
10099 #ifndef DISABLE_JIT
10101 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10103 mono_mb_emit_byte (mb, CEE_RET);
10105 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10106 ret = mono_mb_create (mb, sig, 4, info);
10113 * mono_marshal_get_gsharedvt_out_wrapper:
10115 * This wrapper handles calls from gsharedvt code to normal code.
10117 * The wrapper info for the wrapper is a WrapperInfo structure.
10120 mono_marshal_get_gsharedvt_out_wrapper (void)
10122 static MonoMethod* ret = NULL;
10123 MonoMethodSignature *sig;
10124 MonoMethodBuilder *mb;
10130 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10132 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10133 sig->ret = &mono_defaults.void_class->byval_arg;
10135 #ifndef DISABLE_JIT
10137 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10139 mono_mb_emit_byte (mb, CEE_RET);
10141 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10142 ret = mono_mb_create (mb, sig, 4, info);
10151 MonoMethod *method;
10154 /* LOCKING: vars accessed under the marshal lock */
10155 static ArrayElemAddr *elem_addr_cache = NULL;
10156 static int elem_addr_cache_size = 0;
10157 static int elem_addr_cache_next = 0;
10160 * mono_marshal_get_array_address:
10161 * @rank: rank of the array type
10162 * @elem_size: size in bytes of an element of an array.
10164 * Returns a MonoMethod that implements the code to get the address
10165 * of an element in a multi-dimenasional array of @rank dimensions.
10166 * The returned method takes an array as the first argument and then
10167 * @rank indexes for the @rank dimensions.
10168 * If ELEM_SIZE is 0, read the array size from the array object.
10171 mono_marshal_get_array_address (int rank, int elem_size)
10174 MonoMethodBuilder *mb;
10175 MonoMethodSignature *sig;
10178 int i, bounds, ind, realidx;
10179 int branch_pos, *branch_positions;
10183 mono_marshal_lock ();
10184 for (i = 0; i < elem_addr_cache_next; ++i) {
10185 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10186 ret = elem_addr_cache [i].method;
10190 mono_marshal_unlock ();
10194 branch_positions = g_new0 (int, rank);
10196 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10198 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10199 sig->ret = &mono_defaults.int_class->byval_arg;
10200 sig->params [0] = &mono_defaults.object_class->byval_arg;
10201 for (i = 0; i < rank; ++i) {
10202 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10205 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10206 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10209 #ifndef DISABLE_JIT
10210 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10211 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10212 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10214 /* bounds = array->bounds; */
10215 mono_mb_emit_ldarg (mb, 0);
10216 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10217 mono_mb_emit_byte (mb, CEE_LDIND_I);
10218 mono_mb_emit_stloc (mb, bounds);
10220 /* ind is the overall element index, realidx is the partial index in a single dimension */
10221 /* ind = idx0 - bounds [0].lower_bound */
10222 mono_mb_emit_ldarg (mb, 1);
10223 mono_mb_emit_ldloc (mb, bounds);
10224 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10225 mono_mb_emit_byte (mb, CEE_ADD);
10226 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10227 mono_mb_emit_byte (mb, CEE_SUB);
10228 mono_mb_emit_stloc (mb, ind);
10229 /* if (ind >= bounds [0].length) goto exeception; */
10230 mono_mb_emit_ldloc (mb, ind);
10231 mono_mb_emit_ldloc (mb, bounds);
10232 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10233 mono_mb_emit_byte (mb, CEE_ADD);
10234 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10235 /* note that we use unsigned comparison */
10236 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10238 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10239 * We could also decide to ignore the passed elem_size and get it
10240 * from the array object, to reduce the number of methods we generate:
10241 * the additional cost is 3 memory loads and a non-immediate mul.
10243 for (i = 1; i < rank; ++i) {
10244 /* realidx = idxi - bounds [i].lower_bound */
10245 mono_mb_emit_ldarg (mb, 1 + i);
10246 mono_mb_emit_ldloc (mb, bounds);
10247 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10248 mono_mb_emit_byte (mb, CEE_ADD);
10249 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10250 mono_mb_emit_byte (mb, CEE_SUB);
10251 mono_mb_emit_stloc (mb, realidx);
10252 /* if (realidx >= bounds [i].length) goto exeception; */
10253 mono_mb_emit_ldloc (mb, realidx);
10254 mono_mb_emit_ldloc (mb, bounds);
10255 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10256 mono_mb_emit_byte (mb, CEE_ADD);
10257 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10258 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10259 /* ind = ind * bounds [i].length + realidx */
10260 mono_mb_emit_ldloc (mb, ind);
10261 mono_mb_emit_ldloc (mb, bounds);
10262 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10263 mono_mb_emit_byte (mb, CEE_ADD);
10264 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10265 mono_mb_emit_byte (mb, CEE_MUL);
10266 mono_mb_emit_ldloc (mb, realidx);
10267 mono_mb_emit_byte (mb, CEE_ADD);
10268 mono_mb_emit_stloc (mb, ind);
10271 /* return array->vector + ind * element_size */
10272 mono_mb_emit_ldarg (mb, 0);
10273 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10274 mono_mb_emit_ldloc (mb, ind);
10276 mono_mb_emit_icon (mb, elem_size);
10278 /* Load arr->vtable->klass->sizes.element_class */
10279 mono_mb_emit_ldarg (mb, 0);
10280 mono_mb_emit_byte (mb, CEE_CONV_I);
10281 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10282 mono_mb_emit_byte (mb, CEE_ADD);
10283 mono_mb_emit_byte (mb, CEE_LDIND_I);
10284 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10285 mono_mb_emit_byte (mb, CEE_ADD);
10286 mono_mb_emit_byte (mb, CEE_LDIND_I);
10287 /* sizes is an union, so this reads sizes.element_size */
10288 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10289 mono_mb_emit_byte (mb, CEE_ADD);
10290 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10292 mono_mb_emit_byte (mb, CEE_MUL);
10293 mono_mb_emit_byte (mb, CEE_ADD);
10294 mono_mb_emit_byte (mb, CEE_RET);
10296 /* patch the branches to get here and throw */
10297 for (i = 1; i < rank; ++i) {
10298 mono_mb_patch_branch (mb, branch_positions [i]);
10300 mono_mb_patch_branch (mb, branch_pos);
10301 /* throw exception */
10302 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10304 g_free (branch_positions);
10305 #endif /* DISABLE_JIT */
10307 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10308 info->d.element_addr.rank = rank;
10309 info->d.element_addr.elem_size = elem_size;
10310 ret = mono_mb_create (mb, sig, 4, info);
10313 /* cache the result */
10315 mono_marshal_lock ();
10316 for (i = 0; i < elem_addr_cache_next; ++i) {
10317 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10318 /* FIXME: free ret */
10319 ret = elem_addr_cache [i].method;
10325 if (elem_addr_cache_next >= elem_addr_cache_size) {
10326 int new_size = elem_addr_cache_size + 4;
10327 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10328 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10329 g_free (elem_addr_cache);
10330 elem_addr_cache = new_array;
10331 elem_addr_cache_size = new_size;
10333 elem_addr_cache [elem_addr_cache_next].rank = rank;
10334 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10335 elem_addr_cache [elem_addr_cache_next].method = ret;
10336 elem_addr_cache_next ++;
10338 mono_marshal_unlock ();
10343 * mono_marshal_get_array_accessor_wrapper:
10345 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10348 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10350 MonoMethodSignature *sig;
10351 MonoMethodBuilder *mb;
10355 MonoGenericContext *ctx = NULL;
10356 MonoMethod *orig_method = NULL;
10357 MonoGenericContainer *container = NULL;
10361 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10362 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10363 * FIXME: Use generic methods.
10370 g_assert_not_reached ();
10372 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10373 if ((res = mono_marshal_find_in_cache (cache, method)))
10377 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10380 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10382 #ifndef DISABLE_JIT
10383 /* Call the method */
10385 mono_mb_emit_ldarg (mb, 0);
10386 for (i = 0; i < sig->param_count; i++)
10387 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10391 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10392 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10394 mono_mb_emit_managed_call (mb, method, NULL);
10396 mono_mb_emit_byte (mb, CEE_RET);
10399 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10400 info->d.array_accessor.method = method;
10404 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10405 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10407 res = mono_mb_create_and_cache_full (cache, method,
10408 mb, sig, sig->param_count + 16,
10417 mono_marshal_alloc (gulong size, MonoError *error)
10421 mono_error_init (error);
10424 res = CoTaskMemAlloc (size);
10426 res = g_try_malloc ((gulong)size);
10428 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10433 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10435 ves_icall_marshal_alloc (gulong size)
10438 void *ret = mono_marshal_alloc (size, &error);
10439 if (!mono_error_ok (&error)) {
10440 mono_error_set_pending_exception (&error);
10448 mono_marshal_free (gpointer ptr)
10451 CoTaskMemFree (ptr);
10458 mono_marshal_free_array (gpointer *ptr, int size)
10465 for (i = 0; i < size; i++)
10471 mono_marshal_string_to_utf16 (MonoString *s)
10473 return s ? mono_string_chars (s) : NULL;
10476 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10478 mono_marshal_string_to_utf16_copy (MonoString *s)
10484 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10485 if (!mono_error_ok (&error)) {
10486 mono_error_set_pending_exception (&error);
10489 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10490 res [mono_string_length (s)] = 0;
10496 * mono_marshal_set_last_error:
10498 * This function is invoked to set the last error value from a P/Invoke call
10499 * which has SetLastError set.
10502 mono_marshal_set_last_error (void)
10505 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10507 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10512 mono_marshal_set_last_error_windows (int error)
10515 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10520 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10521 gpointer dest, gint32 length)
10526 MONO_CHECK_ARG_NULL (src,);
10527 MONO_CHECK_ARG_NULL (dest,);
10529 if (src->obj.vtable->klass->rank != 1) {
10530 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10533 if (start_index < 0) {
10534 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10538 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10541 if (start_index + length > mono_array_length (src)) {
10542 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10546 element_size = mono_array_element_size (src->obj.vtable->klass);
10548 /* no references should be involved */
10549 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10551 memcpy (dest, source_addr, length * element_size);
10555 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10556 MonoArray *dest, gint32 length)
10561 MONO_CHECK_ARG_NULL (src,);
10562 MONO_CHECK_ARG_NULL (dest,);
10564 if (dest->obj.vtable->klass->rank != 1) {
10565 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10568 if (start_index < 0) {
10569 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10573 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10576 if (start_index + length > mono_array_length (dest)) {
10577 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10580 element_size = mono_array_element_size (dest->obj.vtable->klass);
10582 /* no references should be involved */
10583 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10585 memcpy (dest_addr, src, length * element_size);
10589 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10594 return mono_string_new (mono_domain_get (), ptr);
10598 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10601 MonoString *result = NULL;
10602 mono_error_init (&error);
10604 mono_error_set_argument_null (&error, "ptr", "");
10606 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10607 mono_error_set_pending_exception (&error);
10612 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10615 MonoString *res = NULL;
10616 MonoDomain *domain = mono_domain_get ();
10626 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10627 if (!mono_error_ok (&error)) {
10628 mono_error_set_pending_exception (&error);
10635 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10638 MonoString *res = NULL;
10639 MonoDomain *domain = mono_domain_get ();
10641 mono_error_init (&error);
10645 mono_error_set_argument_null (&error, "ptr", "");
10647 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10650 if (!mono_error_ok (&error))
10651 mono_error_set_pending_exception (&error);
10656 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10658 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10662 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10668 MONO_CHECK_ARG_NULL (rtype, 0);
10670 type = rtype->type;
10671 klass = mono_class_from_mono_type (type);
10672 if (!mono_class_init (klass)) {
10673 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10677 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10679 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10680 return sizeof (gpointer);
10681 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10683 MonoException *exc;
10685 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10686 exc = mono_get_exception_argument ("t", msg);
10688 mono_set_pending_exception (exc);
10692 return mono_class_native_size (klass, NULL);
10696 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10699 MonoMethod *method;
10702 MONO_CHECK_ARG_NULL (obj,);
10703 MONO_CHECK_ARG_NULL (dst,);
10705 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10709 pa [2] = &delete_old;
10711 mono_runtime_invoke_checked (method, NULL, pa, &error);
10712 if (!mono_error_ok (&error))
10713 mono_error_set_pending_exception (&error);
10717 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10719 MonoMethod *method;
10722 mono_error_init (error);
10724 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10729 mono_runtime_invoke_checked (method, NULL, pa, error);
10733 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10738 MONO_CHECK_ARG_NULL (src,);
10739 MONO_CHECK_ARG_NULL (dst,);
10741 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10743 if (t->type == MONO_TYPE_VALUETYPE) {
10744 MonoException *exc;
10747 tmp = g_strdup_printf ("Destination is a boxed value type.");
10748 exc = mono_get_exception_argument ("dst", tmp);
10751 mono_set_pending_exception (exc);
10755 ptr_to_structure (src, dst, &error);
10756 if (!mono_error_ok (&error))
10757 mono_error_set_pending_exception (&error);
10761 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10765 MonoDomain *domain = mono_domain_get ();
10770 MONO_CHECK_ARG_NULL (type, NULL);
10772 klass = mono_class_from_mono_type (type->type);
10773 if (!mono_class_init (klass)) {
10774 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10778 res = mono_object_new_checked (domain, klass, &error);
10779 if (!mono_error_ok (&error)) {
10780 mono_error_set_pending_exception (&error);
10784 ptr_to_structure (src, res, &error);
10785 if (!mono_error_ok (&error)) {
10786 mono_error_set_pending_exception (&error);
10794 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10797 MonoMarshalType *info;
10800 int match_index = -1;
10802 MONO_CHECK_ARG_NULL (type, 0);
10803 MONO_CHECK_ARG_NULL (field_name, 0);
10805 fname = mono_string_to_utf8_checked (field_name, &error);
10806 if (mono_error_set_pending_exception (&error))
10808 klass = mono_class_from_mono_type (type->type);
10809 if (!mono_class_init (klass)) {
10810 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10814 while (klass && match_index == -1) {
10815 MonoClassField* field;
10817 gpointer iter = NULL;
10818 while ((field = mono_class_get_fields (klass, &iter))) {
10819 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10821 if (!strcmp (fname, mono_field_get_name (field))) {
10828 if (match_index == -1)
10829 klass = klass->parent;
10834 if(match_index == -1) {
10835 MonoException* exc;
10838 /* Get back original class instance */
10839 klass = mono_class_from_mono_type (type->type);
10841 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10842 exc = mono_get_exception_argument ("fieldName", tmp);
10845 mono_set_pending_exception ((MonoException*)exc);
10849 info = mono_marshal_load_type_info (klass);
10850 return info->fields [match_index].offset;
10854 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10860 tres = mono_string_to_utf8_checked (string, &error);
10861 if (mono_error_set_pending_exception (&error))
10866 len = strlen (tres) + 1;
10867 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10868 memcpy (ret, tres, len);
10873 char *ret = mono_string_to_utf8_checked (string, &error);
10874 mono_error_set_pending_exception (&error);
10880 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10882 if (string == NULL)
10885 #ifdef TARGET_WIN32
10886 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10887 ((mono_string_length (string) + 1) * 2);
10889 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10891 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10892 res [mono_string_length (string)] = 0;
10898 mono_struct_delete_old (MonoClass *klass, char *ptr)
10900 MonoMarshalType *info;
10903 info = mono_marshal_load_type_info (klass);
10905 for (i = 0; i < info->num_fields; i++) {
10906 MonoMarshalConv conv;
10907 MonoType *ftype = info->fields [i].field->type;
10910 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10913 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10914 klass->unicode, &conv);
10916 cpos = ptr + info->fields [i].offset;
10919 case MONO_MARSHAL_CONV_NONE:
10920 if (MONO_TYPE_ISSTRUCT (ftype)) {
10921 mono_struct_delete_old (ftype->data.klass, cpos);
10925 case MONO_MARSHAL_CONV_STR_LPWSTR:
10926 /* We assume this field points inside a MonoString */
10928 case MONO_MARSHAL_CONV_STR_LPTSTR:
10929 #ifdef TARGET_WIN32
10930 /* We assume this field points inside a MonoString
10934 case MONO_MARSHAL_CONV_STR_LPSTR:
10935 case MONO_MARSHAL_CONV_STR_BSTR:
10936 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10937 case MONO_MARSHAL_CONV_STR_TBSTR:
10938 mono_marshal_free (*(gpointer *)cpos);
10948 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10952 MONO_CHECK_ARG_NULL (src,);
10953 MONO_CHECK_ARG_NULL (type,);
10955 klass = mono_class_from_mono_type (type->type);
10956 if (!mono_class_init (klass)) {
10957 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10961 mono_struct_delete_old (klass, (char *)src);
10965 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10968 size_t s = (size_t)size;
10971 /* This returns a valid pointer for size 0 on MS.NET */
10975 res = GlobalAlloc (GMEM_FIXED, s);
10977 res = g_try_malloc (s);
10980 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10988 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10991 size_t s = (size_t)size;
10994 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10999 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
11001 res = g_try_realloc (ptr, s);
11004 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11012 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11022 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11027 res = CoTaskMemAlloc (size);
11029 if ((gulong)size == 0)
11030 /* This returns a valid pointer for size 0 on MS.NET */
11033 res = g_try_malloc ((gulong)size);
11036 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11043 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11046 CoTaskMemFree (ptr);
11053 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11058 res = CoTaskMemRealloc (ptr, size);
11060 res = g_try_realloc (ptr, (gulong)size);
11063 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11070 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11072 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11076 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11078 MonoClass *klass = mono_type_get_class (type->type);
11079 if (!mono_class_init (klass)) {
11080 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11084 return mono_ftnptr_to_delegate (klass, ftn);
11088 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11090 return mono_delegate_to_ftnptr (delegate);
11094 * mono_marshal_is_loading_type_info:
11096 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11100 mono_marshal_is_loading_type_info (MonoClass *klass)
11102 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11104 return g_slist_find (loads_list, klass) != NULL;
11108 * mono_marshal_load_type_info:
11110 * Initialize klass->marshal_info using information from metadata. This function can
11111 * recursively call itself, and the caller is responsible to avoid that by calling
11112 * mono_marshal_is_loading_type_info () beforehand.
11114 * LOCKING: Acquires the loader lock.
11117 mono_marshal_load_type_info (MonoClass* klass)
11120 guint32 native_size = 0, min_align = 1, packing;
11121 MonoMarshalType *info;
11122 MonoClassField* field;
11125 GSList *loads_list;
11127 g_assert (klass != NULL);
11129 if (klass->marshal_info)
11130 return klass->marshal_info;
11132 if (!klass->inited)
11133 mono_class_init (klass);
11135 if (klass->marshal_info)
11136 return klass->marshal_info;
11139 * This function can recursively call itself, so we keep the list of classes which are
11140 * under initialization in a TLS list.
11142 g_assert (!mono_marshal_is_loading_type_info (klass));
11143 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11144 loads_list = g_slist_prepend (loads_list, klass);
11145 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11148 while ((field = mono_class_get_fields (klass, &iter))) {
11149 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11151 if (mono_field_is_deleted (field))
11156 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11158 /* The mempool is protected by the loader lock */
11159 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11160 info->num_fields = count;
11162 /* Try to find a size for this type in metadata */
11163 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11165 if (klass->parent) {
11166 int parent_size = mono_class_native_size (klass->parent, NULL);
11168 /* Add parent size to real size */
11169 native_size += parent_size;
11170 info->native_size = parent_size;
11173 packing = klass->packing_size ? klass->packing_size : 8;
11176 while ((field = mono_class_get_fields (klass, &iter))) {
11180 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11183 if (mono_field_is_deleted (field))
11185 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11186 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11187 NULL, NULL, &info->fields [j].mspec);
11189 info->fields [j].field = field;
11191 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11192 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11193 /* This field is a hack inserted by MCS to empty structures */
11198 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11199 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11200 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11201 &align, TRUE, klass->unicode);
11202 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11203 min_align = MAX (align, min_align);
11204 info->fields [j].offset = info->native_size;
11205 info->fields [j].offset += align - 1;
11206 info->fields [j].offset &= ~(align - 1);
11207 info->native_size = info->fields [j].offset + size;
11209 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11210 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11211 &align, TRUE, klass->unicode);
11212 min_align = MAX (align, min_align);
11213 info->fields [j].offset = field->offset - sizeof (MonoObject);
11214 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11220 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11221 info->native_size = MAX (native_size, info->native_size);
11223 * If the provided Size is equal or larger than the calculated size, and there
11224 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11226 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11227 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11230 min_align = MIN (min_align, packing);
11234 if (info->native_size & (min_align - 1)) {
11235 info->native_size += min_align - 1;
11236 info->native_size &= ~(min_align - 1);
11239 info->min_align = min_align;
11241 /* Update the class's blittable info, if the layouts don't match */
11242 if (info->native_size != mono_class_value_size (klass, NULL))
11243 klass->blittable = FALSE;
11245 /* If this is an array type, ensure that we have element info */
11246 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11247 mono_marshal_load_type_info (klass->element_class);
11250 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11251 loads_list = g_slist_remove (loads_list, klass);
11252 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11254 mono_marshal_lock ();
11255 if (!klass->marshal_info) {
11256 /*We do double-checking locking on marshal_info */
11257 mono_memory_barrier ();
11258 klass->marshal_info = info;
11260 mono_marshal_unlock ();
11262 return klass->marshal_info;
11266 * mono_class_native_size:
11269 * Returns: the native size of an object instance (when marshaled
11270 * to unmanaged code)
11273 mono_class_native_size (MonoClass *klass, guint32 *align)
11275 if (!klass->marshal_info) {
11276 if (mono_marshal_is_loading_type_info (klass)) {
11281 mono_marshal_load_type_info (klass);
11286 *align = klass->marshal_info->min_align;
11288 return klass->marshal_info->native_size;
11292 * mono_type_native_stack_size:
11293 * @t: the type to return the size it uses on the stack
11295 * Returns: the number of bytes required to hold an instance of this
11296 * type on the native stack
11299 mono_type_native_stack_size (MonoType *t, guint32 *align)
11303 g_assert (t != NULL);
11309 *align = sizeof (gpointer);
11310 return sizeof (gpointer);
11314 case MONO_TYPE_BOOLEAN:
11315 case MONO_TYPE_CHAR:
11326 case MONO_TYPE_STRING:
11327 case MONO_TYPE_OBJECT:
11328 case MONO_TYPE_CLASS:
11329 case MONO_TYPE_SZARRAY:
11330 case MONO_TYPE_PTR:
11331 case MONO_TYPE_FNPTR:
11332 case MONO_TYPE_ARRAY:
11333 *align = sizeof (gpointer);
11334 return sizeof (gpointer);
11339 *align = MONO_ABI_ALIGNOF (double);
11343 *align = MONO_ABI_ALIGNOF (gint64);
11345 case MONO_TYPE_GENERICINST:
11346 if (!mono_type_generic_inst_is_valuetype (t)) {
11347 *align = sizeof (gpointer);
11348 return sizeof (gpointer);
11351 case MONO_TYPE_TYPEDBYREF:
11352 case MONO_TYPE_VALUETYPE: {
11354 MonoClass *klass = mono_class_from_mono_type (t);
11356 if (klass->enumtype)
11357 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11359 size = mono_class_native_size (klass, align);
11360 *align = *align + 3;
11370 g_error ("type 0x%02x unknown", t->type);
11376 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11377 gboolean as_field, gboolean unicode)
11379 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11382 switch (native_type) {
11383 case MONO_NATIVE_BOOLEAN:
11386 case MONO_NATIVE_I1:
11387 case MONO_NATIVE_U1:
11390 case MONO_NATIVE_I2:
11391 case MONO_NATIVE_U2:
11392 case MONO_NATIVE_VARIANTBOOL:
11395 case MONO_NATIVE_I4:
11396 case MONO_NATIVE_U4:
11397 case MONO_NATIVE_ERROR:
11400 case MONO_NATIVE_I8:
11401 case MONO_NATIVE_U8:
11402 *align = MONO_ABI_ALIGNOF (gint64);
11404 case MONO_NATIVE_R4:
11407 case MONO_NATIVE_R8:
11408 *align = MONO_ABI_ALIGNOF (double);
11410 case MONO_NATIVE_INT:
11411 case MONO_NATIVE_UINT:
11412 case MONO_NATIVE_LPSTR:
11413 case MONO_NATIVE_LPWSTR:
11414 case MONO_NATIVE_LPTSTR:
11415 case MONO_NATIVE_BSTR:
11416 case MONO_NATIVE_ANSIBSTR:
11417 case MONO_NATIVE_TBSTR:
11418 case MONO_NATIVE_LPARRAY:
11419 case MONO_NATIVE_SAFEARRAY:
11420 case MONO_NATIVE_IUNKNOWN:
11421 case MONO_NATIVE_IDISPATCH:
11422 case MONO_NATIVE_INTERFACE:
11423 case MONO_NATIVE_ASANY:
11424 case MONO_NATIVE_FUNC:
11425 case MONO_NATIVE_LPSTRUCT:
11426 *align = MONO_ABI_ALIGNOF (gpointer);
11427 return sizeof (gpointer);
11428 case MONO_NATIVE_STRUCT:
11429 klass = mono_class_from_mono_type (type);
11430 if (klass == mono_defaults.object_class &&
11431 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11435 return mono_class_native_size (klass, align);
11436 case MONO_NATIVE_BYVALTSTR: {
11437 int esize = unicode ? 2: 1;
11440 return mspec->data.array_data.num_elem * esize;
11442 case MONO_NATIVE_BYVALARRAY: {
11443 // FIXME: Have to consider ArraySubType
11445 klass = mono_class_from_mono_type (type);
11446 if (klass->element_class == mono_defaults.char_class) {
11447 esize = unicode ? 2 : 1;
11450 esize = mono_class_native_size (klass->element_class, align);
11453 return mspec->data.array_data.num_elem * esize;
11455 case MONO_NATIVE_CUSTOM:
11456 *align = sizeof (gpointer);
11457 return sizeof (gpointer);
11459 case MONO_NATIVE_CURRENCY:
11460 case MONO_NATIVE_VBBYREFSTR:
11462 g_error ("native type %02x not implemented", native_type);
11465 g_assert_not_reached ();
11469 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11471 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11480 t = &o->vtable->klass->byval_arg;
11484 case MONO_TYPE_PTR:
11487 case MONO_TYPE_BOOLEAN:
11490 case MONO_TYPE_CHAR:
11495 return mono_object_unbox (o);
11497 case MONO_TYPE_STRING:
11498 switch (string_encoding) {
11499 case MONO_NATIVE_LPWSTR:
11500 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11502 case MONO_NATIVE_LPSTR:
11503 return mono_string_to_lpstr ((MonoString*)o);
11506 g_warning ("marshaling conversion %d not implemented", string_encoding);
11507 g_assert_not_reached ();
11510 case MONO_TYPE_CLASS:
11511 case MONO_TYPE_VALUETYPE: {
11512 MonoMethod *method;
11515 MonoBoolean delete_old = FALSE;
11517 klass = t->data.klass;
11519 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11522 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11523 klass->blittable || klass->enumtype))
11524 return mono_object_unbox (o);
11526 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11527 if (!mono_error_ok (&error)) {
11528 mono_error_set_pending_exception (&error);
11532 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11533 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11537 pa [2] = &delete_old;
11539 mono_runtime_invoke_checked (method, NULL, pa, &error);
11540 if (!mono_error_ok (&error)) {
11541 mono_error_set_pending_exception (&error);
11551 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11555 /* This is a JIT icall, it sets the pending exception */
11557 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11566 t = &o->vtable->klass->byval_arg;
11568 case MONO_TYPE_STRING:
11569 switch (string_encoding) {
11570 case MONO_NATIVE_LPWSTR:
11571 case MONO_NATIVE_LPSTR:
11572 mono_marshal_free (ptr);
11575 g_warning ("marshaling conversion %d not implemented", string_encoding);
11576 g_assert_not_reached ();
11579 case MONO_TYPE_CLASS:
11580 case MONO_TYPE_VALUETYPE: {
11581 klass = t->data.klass;
11583 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11584 klass->blittable || klass->enumtype))
11587 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11588 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11594 mono_runtime_invoke_checked (method, NULL, pa, &error);
11595 if (!mono_error_ok (&error)) {
11596 mono_error_set_pending_exception (&error);
11601 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11602 mono_struct_delete_old (klass, (char *)ptr);
11605 mono_marshal_free (ptr);
11614 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11616 MonoMethodSignature *sig, *csig;
11617 MonoMethodBuilder *mb;
11622 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11623 mb->method->slot = -1;
11625 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11626 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11628 sig = mono_method_signature (method);
11629 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11630 csig->generic_param_count = 0;
11632 #ifndef DISABLE_JIT
11633 mono_mb_emit_ldarg (mb, 0);
11634 for (i = 0; i < csig->param_count; i++)
11635 mono_mb_emit_ldarg (mb, i + 1);
11636 mono_mb_emit_managed_call (mb, method, NULL);
11637 mono_mb_emit_byte (mb, CEE_RET);
11639 /* We can corlib internal methods */
11640 mb->skip_visibility = TRUE;
11642 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11643 info->d.generic_array_helper.method = method;
11644 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11652 * The mono_win32_compat_* functions are implementations of inline
11653 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11654 * although not exported by kernel32.
11656 * We map the appropiate kernel32 entries to these functions using
11657 * dllmaps declared in the global etc/mono/config.
11661 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11663 if (!dest || !source)
11666 memcpy (dest, source, length);
11670 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11672 memset (dest, fill, length);
11676 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11678 if (!dest || !source)
11681 memmove (dest, source, length);
11685 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11687 memset (dest, 0, length);
11691 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11696 for (i = 0; i < len; ++i)
11700 g_assert (i < len);
11703 while (byte && !(byte & 1))
11705 g_assert (byte == 1);
11708 *bitmask = buf [i];
11712 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11714 MonoMethodBuilder *mb;
11715 MonoMethodSignature *sig, *csig;
11716 MonoExceptionClause *clause;
11721 int i, param_count, sig_size, pos_leave;
11725 // FIXME: we need to store the exception into a MonoHandle
11726 g_assert (!mono_threads_is_coop_enabled ());
11728 klass = method->klass;
11729 image = method->klass->image;
11731 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11733 if ((res = mono_marshal_find_in_cache (cache, method)))
11736 sig = mono_method_signature (method);
11737 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11739 /* add "this" and exception param */
11740 param_count = sig->param_count + sig->hasthis + 1;
11742 /* dup & extend signature */
11743 csig = mono_metadata_signature_alloc (image, param_count);
11744 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11745 memcpy (csig, sig, sig_size);
11746 csig->param_count = param_count;
11749 csig->call_convention = MONO_CALL_DEFAULT;
11751 if (sig->hasthis) {
11753 csig->params [0] = &klass->byval_arg;
11754 /* move params up by one */
11755 for (i = 0; i < sig->param_count; i++)
11756 csig->params [i + 1] = sig->params [i];
11759 /* setup exception param as byref+[out] */
11760 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11761 &mono_defaults.exception_class->byval_arg);
11762 csig->params [param_count - 1]->byref = 1;
11763 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11765 /* convert struct return to object */
11766 if (MONO_TYPE_ISSTRUCT (sig->ret))
11767 csig->ret = &mono_defaults.object_class->byval_arg;
11769 #ifndef DISABLE_JIT
11770 /* local 0 (temp for exception object) */
11771 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11773 /* local 1 (temp for result) */
11774 if (!MONO_TYPE_IS_VOID (sig->ret))
11775 mono_mb_add_local (mb, sig->ret);
11777 /* clear exception arg */
11778 mono_mb_emit_ldarg (mb, param_count - 1);
11779 mono_mb_emit_byte (mb, CEE_LDNULL);
11780 mono_mb_emit_byte (mb, CEE_STIND_REF);
11783 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11784 clause->try_offset = mono_mb_get_label (mb);
11786 /* push method's args */
11787 for (i = 0; i < param_count - 1; i++) {
11791 mono_mb_emit_ldarg (mb, i);
11793 /* get the byval type of the param */
11794 klass = mono_class_from_mono_type (csig->params [i]);
11795 type = &klass->byval_arg;
11797 /* unbox struct args */
11798 if (MONO_TYPE_ISSTRUCT (type)) {
11799 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11801 /* byref args & and the "this" arg must remain a ptr.
11802 Otherwise make a copy of the value type */
11803 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11804 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11806 csig->params [i] = &mono_defaults.object_class->byval_arg;
11811 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11812 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11814 mono_mb_emit_op (mb, CEE_CALL, method);
11816 /* save result at local 1 */
11817 if (!MONO_TYPE_IS_VOID (sig->ret))
11818 mono_mb_emit_stloc (mb, 1);
11820 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11823 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11824 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11825 clause->data.catch_class = mono_defaults.object_class;
11827 clause->handler_offset = mono_mb_get_label (mb);
11829 /* store exception at local 0 */
11830 mono_mb_emit_stloc (mb, 0);
11831 mono_mb_emit_ldarg (mb, param_count - 1);
11832 mono_mb_emit_ldloc (mb, 0);
11833 mono_mb_emit_byte (mb, CEE_STIND_REF);
11834 mono_mb_emit_branch (mb, CEE_LEAVE);
11836 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11838 mono_mb_set_clauses (mb, 1, clause);
11840 mono_mb_patch_branch (mb, pos_leave);
11843 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11844 mono_mb_emit_ldloc (mb, 1);
11846 /* box the return value */
11847 if (MONO_TYPE_ISSTRUCT (sig->ret))
11848 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11851 mono_mb_emit_byte (mb, CEE_RET);
11854 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11861 * mono_marshal_free_dynamic_wrappers:
11863 * Free wrappers of the dynamic method METHOD.
11866 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11868 MonoImage *image = method->klass->image;
11870 g_assert (method_is_dynamic (method));
11872 /* This could be called during shutdown */
11873 if (marshal_mutex_initialized)
11874 mono_marshal_lock ();
11876 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11877 * they could be shared with other methods ?
11879 if (image->wrapper_caches.runtime_invoke_direct_cache)
11880 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11881 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11882 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11883 // FIXME: Need to clear the caches in other images as well
11884 if (image->delegate_bound_static_invoke_cache)
11885 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11887 if (marshal_mutex_initialized)
11888 mono_marshal_unlock ();
11892 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11894 g_assert (ftnptr_eh_callback);
11895 ftnptr_eh_callback (gchandle);
11899 ftnptr_eh_callback_default (guint32 gchandle)
11901 MonoException *exc;
11902 gpointer stackdata;
11904 g_assert (gchandle >= 0);
11906 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
11908 exc = (MonoException*) mono_gchandle_get_target (gchandle);
11910 mono_gchandle_free (gchandle);
11912 mono_raise_exception (exc);
11916 * mono_install_ftnptr_eh_callback:
11918 * Install a callback that should be called when there is a managed exception
11919 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
11920 * managed exception to a native exception, to properly unwind the native
11921 * stack; this native exception will then be converted back to a managed
11922 * exception in their managed-to-native wrapper.
11925 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
11927 ftnptr_eh_callback = callback;