2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #include "metadata/marshal.h"
23 #include "metadata/marshal-internals.h"
24 #include "metadata/method-builder.h"
25 #include "metadata/tabledefs.h"
26 #include "metadata/exception.h"
27 #include "metadata/appdomain.h"
28 #include "mono/metadata/abi-details.h"
29 #include "mono/metadata/debug-helpers.h"
30 #include "mono/metadata/threads.h"
31 #include "mono/metadata/monitor.h"
32 #include "mono/metadata/class-internals.h"
33 #include "mono/metadata/metadata-internals.h"
34 #include "mono/metadata/domain-internals.h"
35 #include "mono/metadata/gc-internals.h"
36 #include "mono/metadata/threads-types.h"
37 #include "mono/metadata/string-icalls.h"
38 #include "mono/metadata/attrdefs.h"
39 #include "mono/metadata/gc-internals.h"
40 #include "mono/metadata/cominterop.h"
41 #include "mono/metadata/remoting.h"
42 #include "mono/metadata/reflection-internals.h"
43 #include "mono/metadata/threadpool-ms.h"
44 #include "mono/metadata/handle.h"
45 #include "mono/utils/mono-counters.h"
46 #include "mono/utils/mono-tls.h"
47 #include "mono/utils/mono-memory-model.h"
48 #include "mono/utils/atomic.h"
49 #include <mono/utils/mono-threads.h>
50 #include <mono/utils/mono-threads-coop.h>
51 #include <mono/utils/mono-error-internals.h>
56 /* #define DEBUG_RUNTIME_CODE */
58 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
62 #include "mono/cil/opcode.def"
68 * This mutex protects the various marshalling related caches in MonoImage
69 * and a few other data structures static to this file.
71 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
72 * runtime locking latice. Which means it can take simple locks suck as the image lock.
74 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
75 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
76 static mono_mutex_t marshal_mutex;
77 static gboolean marshal_mutex_initialized;
79 static MonoNativeTlsKey last_error_tls_id;
81 static MonoNativeTlsKey load_type_info_tls_id;
83 static gboolean use_aot_wrappers;
85 static void ftnptr_eh_callback_default (guint32 gchandle);
87 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
90 delegate_hash_table_add (MonoDelegate *d);
93 delegate_hash_table_remove (MonoDelegate *d);
96 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
99 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, int offset_of_first_child_field, MonoMarshalNative string_encoding);
102 mono_struct_delete_old (MonoClass *klass, char *ptr);
105 mono_marshal_string_to_utf16 (MonoString *s);
108 mono_marshal_string_to_utf16_copy (MonoString *s);
111 mono_string_to_utf8str (MonoString *string_obj);
113 static MonoStringBuilder *
114 mono_string_utf8_to_builder2 (char *text);
116 static MonoStringBuilder *
117 mono_string_utf16_to_builder2 (gunichar2 *text);
120 mono_string_new_len_wrapper (const char *text, guint length);
123 mono_string_from_byvalstr (const char *data, int len);
126 mono_string_from_byvalwstr (gunichar2 *data, int len);
129 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
132 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
135 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
138 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
140 static MonoAsyncResult *
141 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
144 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
147 mono_marshal_set_last_error_windows (int error);
150 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
152 static void init_safe_handle (void);
155 ves_icall_marshal_alloc (gulong size);
158 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
161 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
164 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
167 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
170 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
173 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
176 mono_delegate_to_ftnptr (MonoDelegate *delegate);
179 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
182 mono_array_to_savearray (MonoArray *array);
185 mono_array_to_lparray (MonoArray *array);
188 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
191 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
194 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
197 mono_array_to_savearray (MonoArray *array);
200 mono_array_to_lparray (MonoArray *array);
203 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
206 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
208 static MonoThreadInfo*
209 mono_icall_start (HandleStackMark *stackmark, MonoError *error);
212 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error);
214 /* Lazy class loading functions */
215 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
216 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
217 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
218 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
220 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
221 static MonoMethod *sh_dangerous_add_ref;
222 static MonoMethod *sh_dangerous_release;
227 sh_dangerous_add_ref = mono_class_get_method_from_name (
228 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
229 sh_dangerous_release = mono_class_get_method_from_name (
230 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
234 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
236 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
238 mono_register_jit_icall (func, name, sig, no_wrapper);
242 mono_signature_no_pinvoke (MonoMethod *method)
244 MonoMethodSignature *sig = mono_method_signature (method);
246 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
247 sig->pinvoke = FALSE;
254 mono_marshal_init_tls (void)
256 mono_native_tls_alloc (&last_error_tls_id, NULL);
257 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
261 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
264 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
265 mono_error_set_pending_exception (&error);
270 ves_icall_mono_string_from_utf16 (gunichar2 *data)
273 MonoString *result = mono_string_from_utf16_checked (data, &error);
274 mono_error_set_pending_exception (&error);
279 ves_icall_mono_string_to_utf8 (MonoString *str)
282 char *result = mono_string_to_utf8_checked (str, &error);
283 mono_error_set_pending_exception (&error);
288 mono_marshal_init (void)
290 static gboolean module_initialized = FALSE;
292 if (!module_initialized) {
293 module_initialized = TRUE;
294 mono_os_mutex_init_recursive (&marshal_mutex);
295 marshal_mutex_initialized = TRUE;
297 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
298 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
299 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
300 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
301 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
302 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
303 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
304 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
305 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
306 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
307 register_icall (mono_string_to_utf8str, "mono_string_to_utf8str", "ptr obj", FALSE);
308 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
309 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
310 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
311 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
312 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
313 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
314 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
315 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
316 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
317 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
318 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
319 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
320 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
321 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
322 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
323 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
324 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
325 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
326 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
327 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
328 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
329 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
330 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
331 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
332 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
333 register_icall (g_free, "g_free", "void ptr", FALSE);
334 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
335 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
336 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
337 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
338 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
339 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
340 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
341 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
342 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
343 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
344 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
345 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
346 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
347 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
348 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
349 register_icall (mono_icall_start, "mono_icall_start", "ptr ptr ptr", TRUE);
350 register_icall (mono_icall_end, "mono_icall_end", "void ptr ptr ptr", TRUE);
351 register_icall (mono_handle_new, "mono_handle_new", "ptr ptr", TRUE);
353 mono_cominterop_init ();
354 mono_remoting_init ();
359 mono_marshal_cleanup (void)
361 mono_cominterop_cleanup ();
363 mono_native_tls_free (load_type_info_tls_id);
364 mono_native_tls_free (last_error_tls_id);
365 mono_os_mutex_destroy (&marshal_mutex);
366 marshal_mutex_initialized = FALSE;
370 mono_marshal_lock_internal (void)
372 mono_marshal_lock ();
376 mono_marshal_unlock_internal (void)
378 mono_marshal_unlock ();
381 /* This is a JIT icall, it sets the pending exception and return NULL on error */
383 mono_delegate_to_ftnptr (MonoDelegate *delegate)
386 MonoMethod *method, *wrapper;
388 uint32_t target_handle = 0;
393 if (delegate->delegate_trampoline)
394 return delegate->delegate_trampoline;
396 klass = ((MonoObject *)delegate)->vtable->klass;
397 g_assert (klass->delegate);
399 method = delegate->method;
400 if (delegate->method_is_virtual)
401 method = mono_object_get_virtual_method (delegate->target, method);
403 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
404 const char *exc_class, *exc_arg;
407 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
409 g_assert (exc_class);
410 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
416 if (delegate->target) {
417 /* Produce a location which can be embedded in JITted code */
418 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
421 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
423 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
427 // Add the delegate to the delegate hash table
428 delegate_hash_table_add (delegate);
430 /* when the object is collected, collect the dynamic method, too */
431 mono_object_register_finalizer ((MonoObject*)delegate);
433 return delegate->delegate_trampoline;
436 if (target_handle != 0)
437 mono_gchandle_free (target_handle);
438 mono_error_set_pending_exception (&error);
443 * this hash table maps from a delegate trampoline object to a weak reference
444 * of the delegate. As an optimizations with a non-moving GC we store the
445 * object pointer itself, otherwise we use a GC handle.
447 static GHashTable *delegate_hash_table;
450 delegate_hash_table_new (void) {
451 return g_hash_table_new (NULL, NULL);
455 delegate_hash_table_remove (MonoDelegate *d)
457 guint32 gchandle = 0;
459 mono_marshal_lock ();
460 if (delegate_hash_table == NULL)
461 delegate_hash_table = delegate_hash_table_new ();
462 if (mono_gc_is_moving ())
463 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
464 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
465 mono_marshal_unlock ();
466 if (gchandle && mono_gc_is_moving ())
467 mono_gchandle_free (gchandle);
471 delegate_hash_table_add (MonoDelegate *d)
474 guint32 old_gchandle;
476 mono_marshal_lock ();
477 if (delegate_hash_table == NULL)
478 delegate_hash_table = delegate_hash_table_new ();
479 if (mono_gc_is_moving ()) {
480 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
481 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
482 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
484 mono_gchandle_free (old_gchandle);
486 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
488 mono_marshal_unlock ();
492 * mono_marshal_use_aot_wrappers:
494 * Instructs this module to use AOT compatible wrappers.
497 mono_marshal_use_aot_wrappers (gboolean use)
499 use_aot_wrappers = use;
503 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
506 MonoCustomAttrInfo *cinfo;
507 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
509 /* The attribute is only available in Net 2.0 */
510 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
512 * The pinvoke attributes are stored in a real custom attribute so we have to
515 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
516 if (!mono_error_ok (&error)) {
517 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
518 mono_error_cleanup (&error);
520 if (cinfo && !mono_runtime_get_no_exec ()) {
521 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
523 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
525 if (!mono_error_ok (&error)) {
526 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
527 mono_error_cleanup (&error);
531 mono_custom_attrs_free (cinfo);
536 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
538 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
547 mono_marshal_lock ();
548 if (delegate_hash_table == NULL)
549 delegate_hash_table = delegate_hash_table_new ();
551 if (mono_gc_is_moving ()) {
552 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
553 mono_marshal_unlock ();
555 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
559 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
560 mono_marshal_unlock ();
563 /* This is a native function, so construct a delegate for it */
564 MonoMethodSignature *sig;
566 MonoMarshalSpec **mspecs;
567 MonoMethod *invoke = mono_get_delegate_invoke (klass);
568 MonoMethodPInvoke piinfo;
569 MonoObject *this_obj;
572 if (use_aot_wrappers) {
573 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
574 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
575 if (!is_ok (&error)) {
576 mono_error_set_pending_exception (&error);
580 memset (&piinfo, 0, sizeof (piinfo));
581 parse_unmanaged_function_pointer_attr (klass, &piinfo);
583 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
584 mono_method_get_marshal_info (invoke, mspecs);
585 /* Freed below so don't alloc from mempool */
586 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
589 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
592 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
594 mono_metadata_free_marshal_spec (mspecs [i]);
599 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
600 if (!mono_error_ok (&error)) {
601 mono_error_set_pending_exception (&error);
604 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
605 if (mono_error_set_pending_exception (&error))
607 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
608 if (mono_error_set_pending_exception (&error))
612 if (d->object.vtable->domain != mono_domain_get ()) {
613 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
621 mono_delegate_free_ftnptr (MonoDelegate *delegate)
626 delegate_hash_table_remove (delegate);
628 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
630 if (!delegate->target) {
631 /* The wrapper method is shared between delegates -> no need to free it */
640 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
643 method = mono_jit_info_get_method (ji);
644 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
646 /*the target gchandle is the first entry after size and the wrapper itself.*/
647 gchandle = GPOINTER_TO_UINT (method_data [2]);
650 mono_gchandle_free (gchandle);
652 mono_runtime_free_method (mono_object_domain (delegate), method);
656 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
658 mono_string_from_byvalstr (const char *data, int max_len)
661 MonoDomain *domain = mono_domain_get ();
667 while (len < max_len - 1 && data [len])
670 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
671 mono_error_set_pending_exception (&error);
675 /* This is a JIT icall, it sets the pending exception and return NULL on error */
677 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
680 MonoString *res = NULL;
681 MonoDomain *domain = mono_domain_get ();
687 while (data [len]) len++;
689 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
690 if (!mono_error_ok (&error)) {
691 mono_error_set_pending_exception (&error);
698 mono_array_to_savearray (MonoArray *array)
703 g_assert_not_reached ();
708 mono_array_to_lparray (MonoArray *array)
711 gpointer *nativeArray = NULL;
712 int nativeArraySize = 0;
722 klass = array->obj.vtable->klass;
724 switch (klass->element_class->byval_arg.type) {
726 g_assert_not_reached ();
728 case MONO_TYPE_CLASS:
729 nativeArraySize = array->max_length;
730 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
731 for(i = 0; i < nativeArraySize; ++i)
732 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
735 case MONO_TYPE_BOOLEAN:
748 case MONO_TYPE_VALUETYPE:
752 case MONO_TYPE_GENERICINST:
753 case MONO_TYPE_OBJECT:
754 case MONO_TYPE_ARRAY:
755 case MONO_TYPE_SZARRAY:
756 case MONO_TYPE_STRING:
758 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
759 g_assert_not_reached ();
762 return array->vector;
766 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
777 klass = array->obj.vtable->klass;
779 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
780 for(i = 0; i < array->max_length; ++i)
781 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
782 g_free (nativeArray);
788 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
790 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
792 if (elclass == mono_defaults.byte_class) {
793 GError *error = NULL;
797 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
800 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
804 g_error_free (error);
807 g_assert_not_reached ();
811 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
813 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
816 /* This is a JIT icall, it sets the pending exception and returns on error */
818 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
820 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
822 if (elclass == mono_defaults.byte_class) {
824 GError *error = NULL;
826 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
828 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
829 g_error_free (error);
833 memcpy (native_arr, as, MIN (strlen (as), elnum));
836 g_assert_not_reached ();
841 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
843 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
846 static MonoStringBuilder *
847 mono_string_builder_new (int starting_string_length)
849 static MonoClass *string_builder_class;
850 static MonoMethod *sb_ctor;
851 static void *args [1];
854 int initial_len = starting_string_length;
860 MonoMethodDesc *desc;
863 string_builder_class = mono_class_get_string_builder_class ();
864 g_assert (string_builder_class);
865 desc = mono_method_desc_new (":.ctor(int)", FALSE);
866 m = mono_method_desc_search_in_class (desc, string_builder_class);
868 mono_method_desc_free (desc);
869 mono_memory_barrier ();
873 // We make a new array in the _to_builder function, so this
874 // array will always be garbage collected.
875 args [0] = &initial_len;
877 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
878 mono_error_assert_ok (&error);
881 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
882 g_assert (exc == NULL);
883 mono_error_assert_ok (&error);
885 g_assert (sb->chunkChars->max_length >= initial_len);
891 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
893 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
894 gunichar2 *charSrc = (gunichar2 *)text;
895 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
897 sb->chunkLength = string_len;
903 mono_string_utf16_to_builder2 (gunichar2 *text)
909 for (len = 0; text [len] != 0; ++len);
911 MonoStringBuilder *sb = mono_string_builder_new (len);
912 mono_string_utf16_to_builder (sb, text);
918 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
923 GError *error = NULL;
925 gunichar2* ut = g_utf8_to_utf16 (text, strlen (text), NULL, &copied, &error);
926 int capacity = mono_string_builder_capacity (sb);
928 if (copied > capacity)
932 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
933 mono_string_utf16_to_builder_copy (sb, ut, copied);
935 g_error_free (error);
941 mono_string_utf8_to_builder2 (char *text)
946 int len = strlen (text);
947 MonoStringBuilder *sb = mono_string_builder_new (len);
948 mono_string_utf8_to_builder (sb, text);
954 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
960 for (len = 0; text [len] != 0; ++len);
962 if (len > mono_string_builder_capacity (sb))
963 len = mono_string_builder_capacity (sb);
965 mono_string_utf16_to_builder_copy (sb, text, len);
969 * mono_string_builder_to_utf8:
970 * @sb: the string builder
972 * Converts to utf8 the contents of the MonoStringBuilder.
974 * Returns: a utf8 string with the contents of the StringBuilder.
976 * The return value must be released with mono_marshal_free.
978 * This is a JIT icall, it sets the pending exception and returns NULL on error.
981 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
984 GError *gerror = NULL;
989 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
991 guint str_len = mono_string_builder_string_length (sb);
993 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
996 g_error_free (gerror);
997 mono_marshal_free (str_utf16);
998 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1001 guint len = mono_string_builder_capacity (sb) + 1;
1002 gchar *res = (gchar *)mono_marshal_alloc (MAX (byte_count+1, len * sizeof (gchar)), &error);
1003 if (!mono_error_ok (&error)) {
1004 mono_marshal_free (str_utf16);
1006 mono_error_set_pending_exception (&error);
1010 memcpy (res, tmp, byte_count);
1011 res[byte_count] = '\0';
1013 mono_marshal_free (str_utf16);
1020 * mono_string_builder_to_utf16:
1021 * @sb: the string builder
1023 * Converts to utf16 the contents of the MonoStringBuilder.
1025 * Returns: a utf16 string with the contents of the StringBuilder.
1027 * The return value must be released with mono_marshal_free.
1029 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1032 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1039 g_assert (sb->chunkChars);
1041 guint len = mono_string_builder_capacity (sb);
1046 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1047 if (!mono_error_ok (&error)) {
1048 mono_error_set_pending_exception (&error);
1057 MonoStringBuilder* chunk = sb;
1059 if (chunk->chunkLength > 0) {
1060 // Check that we will not overrun our boundaries.
1061 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1063 if (chunk->chunkLength <= len) {
1064 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1066 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1069 len -= chunk->chunkLength;
1071 chunk = chunk->chunkPrevious;
1072 } while (chunk != NULL);
1077 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1079 mono_string_to_utf8str (MonoString *s)
1082 char *result = mono_string_to_utf8_checked (s, &error);
1083 mono_error_set_pending_exception (&error);
1088 mono_string_to_ansibstr (MonoString *string_obj)
1090 g_error ("UnmanagedMarshal.BStr is not implemented.");
1095 * mono_string_to_byvalstr:
1096 * @dst: Where to store the null-terminated utf8 decoded string.
1097 * @src: the MonoString to copy.
1098 * @size: the maximum number of bytes to copy.
1100 * Copies the MonoString pointed to by @src as a utf8 string
1101 * into @dst, it copies at most @size bytes into the destination.
1104 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1110 g_assert (dst != NULL);
1111 g_assert (size > 0);
1113 memset (dst, 0, size);
1117 s = mono_string_to_utf8_checked (src, &error);
1118 if (mono_error_set_pending_exception (&error))
1120 len = MIN (size, strlen (s));
1123 memcpy (dst, s, len);
1128 * mono_string_to_byvalwstr:
1129 * @dst: Where to store the null-terminated utf16 decoded string.
1130 * @src: the MonoString to copy.
1131 * @size: the maximum number of bytes to copy.
1133 * Copies the MonoString pointed to by @src as a utf16 string into
1134 * @dst, it copies at most @size bytes into the destination (including
1135 * a terminating 16-bit zero terminator).
1138 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1142 g_assert (dst != NULL);
1143 g_assert (size > 1);
1146 memset (dst, 0, size * 2);
1150 len = MIN (size, (mono_string_length (src)));
1151 memcpy (dst, mono_string_chars (src), size * 2);
1152 if (size <= mono_string_length (src))
1154 *((gunichar2 *) dst + len) = 0;
1157 /* this is an icall, it sets the pending exception and returns NULL on error */
1159 mono_string_new_len_wrapper (const char *text, guint length)
1162 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1163 mono_error_set_pending_exception (&error);
1170 * mono_mb_emit_exception_marshal_directive:
1172 * This function assumes ownership of MSG, which should be malloc-ed.
1175 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1180 s = mono_image_strdup (mb->method->klass->image, msg);
1185 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1188 #endif /* !DISABLE_JIT */
1191 mono_type_to_ldind (MonoType *type)
1197 switch (type->type) {
1199 return CEE_LDIND_I1;
1201 case MONO_TYPE_BOOLEAN:
1202 return CEE_LDIND_U1;
1204 return CEE_LDIND_I2;
1206 case MONO_TYPE_CHAR:
1207 return CEE_LDIND_U2;
1209 return CEE_LDIND_I4;
1211 return CEE_LDIND_U4;
1215 case MONO_TYPE_FNPTR:
1217 case MONO_TYPE_CLASS:
1218 case MONO_TYPE_STRING:
1219 case MONO_TYPE_OBJECT:
1220 case MONO_TYPE_SZARRAY:
1221 case MONO_TYPE_ARRAY:
1222 return CEE_LDIND_REF;
1225 return CEE_LDIND_I8;
1227 return CEE_LDIND_R4;
1229 return CEE_LDIND_R8;
1230 case MONO_TYPE_VALUETYPE:
1231 if (type->data.klass->enumtype) {
1232 type = mono_class_enum_basetype (type->data.klass);
1236 case MONO_TYPE_TYPEDBYREF:
1238 case MONO_TYPE_GENERICINST:
1239 type = &type->data.generic_class->container_class->byval_arg;
1242 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1248 mono_type_to_stind (MonoType *type)
1251 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1255 switch (type->type) {
1258 case MONO_TYPE_BOOLEAN:
1259 return CEE_STIND_I1;
1262 case MONO_TYPE_CHAR:
1263 return CEE_STIND_I2;
1266 return CEE_STIND_I4;
1270 case MONO_TYPE_FNPTR:
1272 case MONO_TYPE_CLASS:
1273 case MONO_TYPE_STRING:
1274 case MONO_TYPE_OBJECT:
1275 case MONO_TYPE_SZARRAY:
1276 case MONO_TYPE_ARRAY:
1277 return CEE_STIND_REF;
1280 return CEE_STIND_I8;
1282 return CEE_STIND_R4;
1284 return CEE_STIND_R8;
1285 case MONO_TYPE_VALUETYPE:
1286 if (type->data.klass->enumtype) {
1287 type = mono_class_enum_basetype (type->data.klass);
1291 case MONO_TYPE_TYPEDBYREF:
1293 case MONO_TYPE_GENERICINST:
1294 type = &type->data.generic_class->container_class->byval_arg;
1297 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1305 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1308 case MONO_MARSHAL_CONV_BOOL_I4:
1309 mono_mb_emit_ldloc (mb, 1);
1310 mono_mb_emit_ldloc (mb, 0);
1311 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1312 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1313 mono_mb_emit_byte (mb, 3);
1314 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1315 mono_mb_emit_byte (mb, CEE_BR_S);
1316 mono_mb_emit_byte (mb, 1);
1317 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1318 mono_mb_emit_byte (mb, CEE_STIND_I1);
1320 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1321 mono_mb_emit_ldloc (mb, 1);
1322 mono_mb_emit_ldloc (mb, 0);
1323 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1324 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1325 mono_mb_emit_byte (mb, 3);
1326 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1327 mono_mb_emit_byte (mb, CEE_BR_S);
1328 mono_mb_emit_byte (mb, 1);
1329 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1330 mono_mb_emit_byte (mb, CEE_STIND_I1);
1332 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1333 MonoClass *eklass = NULL;
1336 if (type->type == MONO_TYPE_SZARRAY) {
1337 eklass = type->data.klass;
1339 g_assert_not_reached ();
1342 esize = mono_class_native_size (eklass, NULL);
1344 /* create a new array */
1345 mono_mb_emit_ldloc (mb, 1);
1346 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1347 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1348 mono_mb_emit_byte (mb, CEE_STIND_REF);
1350 if (eklass->blittable) {
1351 /* copy the elements */
1352 mono_mb_emit_ldloc (mb, 1);
1353 mono_mb_emit_byte (mb, CEE_LDIND_I);
1354 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1355 mono_mb_emit_byte (mb, CEE_ADD);
1356 mono_mb_emit_ldloc (mb, 0);
1357 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1358 mono_mb_emit_byte (mb, CEE_PREFIX1);
1359 mono_mb_emit_byte (mb, CEE_CPBLK);
1362 int array_var, src_var, dst_var, index_var;
1363 guint32 label2, label3;
1365 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1366 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1367 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1370 mono_mb_emit_ldloc (mb, 1);
1371 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1372 mono_mb_emit_stloc (mb, array_var);
1374 /* save the old src pointer */
1375 mono_mb_emit_ldloc (mb, 0);
1376 mono_mb_emit_stloc (mb, src_var);
1377 /* save the old dst pointer */
1378 mono_mb_emit_ldloc (mb, 1);
1379 mono_mb_emit_stloc (mb, dst_var);
1381 /* Emit marshalling loop */
1382 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1383 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1384 mono_mb_emit_stloc (mb, index_var);
1387 label2 = mono_mb_get_label (mb);
1388 mono_mb_emit_ldloc (mb, index_var);
1389 mono_mb_emit_ldloc (mb, array_var);
1390 mono_mb_emit_byte (mb, CEE_LDLEN);
1391 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1393 /* src is already set */
1396 mono_mb_emit_ldloc (mb, array_var);
1397 mono_mb_emit_ldloc (mb, index_var);
1398 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1399 mono_mb_emit_stloc (mb, 1);
1401 /* Do the conversion */
1402 emit_struct_conv (mb, eklass, TRUE);
1405 mono_mb_emit_add_to_local (mb, index_var, 1);
1407 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1409 mono_mb_patch_branch (mb, label3);
1411 /* restore the old src pointer */
1412 mono_mb_emit_ldloc (mb, src_var);
1413 mono_mb_emit_stloc (mb, 0);
1414 /* restore the old dst pointer */
1415 mono_mb_emit_ldloc (mb, dst_var);
1416 mono_mb_emit_stloc (mb, 1);
1420 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1421 MonoClass *eclass = mono_defaults.char_class;
1423 /* create a new array */
1424 mono_mb_emit_ldloc (mb, 1);
1425 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1426 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1427 mono_mb_emit_byte (mb, CEE_STIND_REF);
1429 mono_mb_emit_ldloc (mb, 1);
1430 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1431 mono_mb_emit_ldloc (mb, 0);
1432 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1433 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1436 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1437 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1438 mono_mb_emit_ldloc (mb, 1);
1439 mono_mb_emit_ldloc (mb, 0);
1440 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1441 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1443 mono_mb_emit_ldloc (mb, 1);
1444 mono_mb_emit_ldloc (mb, 0);
1445 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1447 mono_mb_emit_byte (mb, CEE_STIND_REF);
1449 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1450 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1451 mono_mb_emit_ldloc (mb, 1);
1452 mono_mb_emit_ldloc (mb, 0);
1453 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1454 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1456 mono_mb_emit_ldloc (mb, 1);
1457 mono_mb_emit_ldloc (mb, 0);
1458 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1460 mono_mb_emit_byte (mb, CEE_STIND_REF);
1462 case MONO_MARSHAL_CONV_STR_LPTSTR:
1463 mono_mb_emit_ldloc (mb, 1);
1464 mono_mb_emit_ldloc (mb, 0);
1465 mono_mb_emit_byte (mb, CEE_LDIND_I);
1467 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1469 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1471 mono_mb_emit_byte (mb, CEE_STIND_REF);
1474 // In Mono historically LPSTR was treated as a UTF8STR
1475 case MONO_MARSHAL_CONV_STR_LPSTR:
1476 case MONO_MARSHAL_CONV_STR_UTF8STR:
1477 mono_mb_emit_ldloc (mb, 1);
1478 mono_mb_emit_ldloc (mb, 0);
1479 mono_mb_emit_byte (mb, CEE_LDIND_I);
1480 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1481 mono_mb_emit_byte (mb, CEE_STIND_REF);
1483 case MONO_MARSHAL_CONV_STR_LPWSTR:
1484 mono_mb_emit_ldloc (mb, 1);
1485 mono_mb_emit_ldloc (mb, 0);
1486 mono_mb_emit_byte (mb, CEE_LDIND_I);
1487 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1488 mono_mb_emit_byte (mb, CEE_STIND_REF);
1490 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1491 MonoClass *klass = mono_class_from_mono_type (type);
1492 int src_var, dst_var;
1494 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1495 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1497 /* *dst = new object */
1498 mono_mb_emit_ldloc (mb, 1);
1499 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1500 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1501 mono_mb_emit_byte (mb, CEE_STIND_REF);
1503 /* save the old src pointer */
1504 mono_mb_emit_ldloc (mb, 0);
1505 mono_mb_emit_stloc (mb, src_var);
1506 /* save the old dst pointer */
1507 mono_mb_emit_ldloc (mb, 1);
1508 mono_mb_emit_stloc (mb, dst_var);
1510 /* dst = pointer to newly created object data */
1511 mono_mb_emit_ldloc (mb, 1);
1512 mono_mb_emit_byte (mb, CEE_LDIND_I);
1513 mono_mb_emit_icon (mb, sizeof (MonoObject));
1514 mono_mb_emit_byte (mb, CEE_ADD);
1515 mono_mb_emit_stloc (mb, 1);
1517 emit_struct_conv (mb, klass, TRUE);
1519 /* restore the old src pointer */
1520 mono_mb_emit_ldloc (mb, src_var);
1521 mono_mb_emit_stloc (mb, 0);
1522 /* restore the old dst pointer */
1523 mono_mb_emit_ldloc (mb, dst_var);
1524 mono_mb_emit_stloc (mb, 1);
1527 case MONO_MARSHAL_CONV_DEL_FTN: {
1528 MonoClass *klass = mono_class_from_mono_type (type);
1530 mono_mb_emit_ldloc (mb, 1);
1531 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1532 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1533 mono_mb_emit_ldloc (mb, 0);
1534 mono_mb_emit_byte (mb, CEE_LDIND_I);
1535 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1536 mono_mb_emit_byte (mb, CEE_STIND_REF);
1539 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1540 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1544 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1545 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1546 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1547 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1549 #endif /* DISABLE_COM */
1551 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1553 * Passing SafeHandles as ref does not allow the unmanaged code
1554 * to change the SafeHandle value. If the value is changed,
1555 * we should issue a diagnostic exception (NotSupportedException)
1556 * that informs the user that changes to handles in unmanaged code
1559 * Since we currently have no access to the original
1560 * SafeHandle that was used during the marshalling,
1561 * for now we just ignore this, and ignore/discard any
1562 * changes that might have happened to the handle.
1567 case MONO_MARSHAL_CONV_HANDLEREF: {
1569 * Passing HandleRefs in a struct that is ref()ed does not
1570 * copy the values back to the HandleRef
1575 case MONO_MARSHAL_CONV_STR_BSTR:
1576 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1577 case MONO_MARSHAL_CONV_STR_TBSTR:
1578 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1580 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1582 mono_mb_emit_exception_marshal_directive (mb, msg);
1589 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1592 if (!ind_store_type)
1593 ind_store_type = &dummy;
1594 *ind_store_type = CEE_STIND_I;
1596 case MONO_MARSHAL_CONV_STR_LPWSTR:
1597 return mono_marshal_string_to_utf16;
1598 case MONO_MARSHAL_CONV_LPWSTR_STR:
1599 *ind_store_type = CEE_STIND_REF;
1600 return ves_icall_mono_string_from_utf16;
1601 case MONO_MARSHAL_CONV_LPTSTR_STR:
1602 *ind_store_type = CEE_STIND_REF;
1603 return mono_string_new_wrapper;
1604 case MONO_MARSHAL_CONV_UTF8STR_STR:
1605 case MONO_MARSHAL_CONV_LPSTR_STR:
1606 *ind_store_type = CEE_STIND_REF;
1607 return mono_string_new_wrapper;
1608 case MONO_MARSHAL_CONV_STR_LPTSTR:
1610 return mono_marshal_string_to_utf16;
1612 return mono_string_to_utf8str;
1614 // In Mono historically LPSTR was treated as a UTF8STR
1615 case MONO_MARSHAL_CONV_STR_UTF8STR:
1616 case MONO_MARSHAL_CONV_STR_LPSTR:
1617 return mono_string_to_utf8str;
1618 case MONO_MARSHAL_CONV_STR_BSTR:
1619 return mono_string_to_bstr;
1620 case MONO_MARSHAL_CONV_BSTR_STR:
1621 *ind_store_type = CEE_STIND_REF;
1622 return mono_string_from_bstr_icall;
1623 case MONO_MARSHAL_CONV_STR_TBSTR:
1624 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1625 return mono_string_to_ansibstr;
1626 case MONO_MARSHAL_CONV_SB_UTF8STR:
1627 case MONO_MARSHAL_CONV_SB_LPSTR:
1628 return mono_string_builder_to_utf8;
1629 case MONO_MARSHAL_CONV_SB_LPTSTR:
1631 return mono_string_builder_to_utf16;
1633 return mono_string_builder_to_utf8;
1635 case MONO_MARSHAL_CONV_SB_LPWSTR:
1636 return mono_string_builder_to_utf16;
1637 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1638 return mono_array_to_savearray;
1639 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1640 return mono_array_to_lparray;
1641 case MONO_MARSHAL_FREE_LPARRAY:
1642 return mono_free_lparray;
1643 case MONO_MARSHAL_CONV_DEL_FTN:
1644 return mono_delegate_to_ftnptr;
1645 case MONO_MARSHAL_CONV_FTN_DEL:
1646 *ind_store_type = CEE_STIND_REF;
1647 return mono_ftnptr_to_delegate;
1648 case MONO_MARSHAL_CONV_UTF8STR_SB:
1649 case MONO_MARSHAL_CONV_LPSTR_SB:
1650 *ind_store_type = CEE_STIND_REF;
1651 return mono_string_utf8_to_builder;
1652 case MONO_MARSHAL_CONV_LPTSTR_SB:
1653 *ind_store_type = CEE_STIND_REF;
1655 return mono_string_utf16_to_builder;
1657 return mono_string_utf8_to_builder;
1659 case MONO_MARSHAL_CONV_LPWSTR_SB:
1660 *ind_store_type = CEE_STIND_REF;
1661 return mono_string_utf16_to_builder;
1662 case MONO_MARSHAL_FREE_ARRAY:
1663 return mono_marshal_free_array;
1664 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1665 return mono_string_to_byvalstr;
1666 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1667 return mono_string_to_byvalwstr;
1669 g_assert_not_reached ();
1676 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1682 case MONO_MARSHAL_CONV_BOOL_I4:
1683 mono_mb_emit_ldloc (mb, 1);
1684 mono_mb_emit_ldloc (mb, 0);
1685 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1686 mono_mb_emit_byte (mb, CEE_STIND_I4);
1688 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1689 mono_mb_emit_ldloc (mb, 1);
1690 mono_mb_emit_ldloc (mb, 0);
1691 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1692 mono_mb_emit_byte (mb, CEE_NEG);
1693 mono_mb_emit_byte (mb, CEE_STIND_I2);
1695 // In Mono historically LPSTR was treated as a UTF8STR
1696 case MONO_MARSHAL_CONV_STR_UTF8STR:
1697 case MONO_MARSHAL_CONV_STR_LPWSTR:
1698 case MONO_MARSHAL_CONV_STR_LPSTR:
1699 case MONO_MARSHAL_CONV_STR_LPTSTR:
1700 case MONO_MARSHAL_CONV_STR_BSTR:
1701 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1702 case MONO_MARSHAL_CONV_STR_TBSTR: {
1705 /* free space if free == true */
1706 mono_mb_emit_ldloc (mb, 2);
1707 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1708 mono_mb_emit_ldloc (mb, 1);
1709 mono_mb_emit_byte (mb, CEE_LDIND_I);
1710 mono_mb_emit_icall (mb, g_free);
1711 mono_mb_patch_short_branch (mb, pos);
1713 mono_mb_emit_ldloc (mb, 1);
1714 mono_mb_emit_ldloc (mb, 0);
1715 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1716 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1717 mono_mb_emit_byte (mb, stind_op);
1720 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1721 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1722 case MONO_MARSHAL_CONV_DEL_FTN:
1723 mono_mb_emit_ldloc (mb, 1);
1724 mono_mb_emit_ldloc (mb, 0);
1725 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1726 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1727 mono_mb_emit_byte (mb, stind_op);
1729 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1730 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1733 mono_mb_emit_ldloc (mb, 1); /* dst */
1734 mono_mb_emit_ldloc (mb, 0);
1735 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1736 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1737 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1740 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1741 MonoClass *eklass = NULL;
1744 if (type->type == MONO_TYPE_SZARRAY) {
1745 eklass = type->data.klass;
1747 g_assert_not_reached ();
1750 if (eklass->valuetype)
1751 esize = mono_class_native_size (eklass, NULL);
1753 esize = sizeof (gpointer);
1755 mono_mb_emit_ldloc (mb, 0);
1756 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1757 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1759 if (eklass->blittable) {
1760 mono_mb_emit_ldloc (mb, 1);
1761 mono_mb_emit_ldloc (mb, 0);
1762 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1763 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1764 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1765 mono_mb_emit_byte (mb, CEE_PREFIX1);
1766 mono_mb_emit_byte (mb, CEE_CPBLK);
1768 int array_var, src_var, dst_var, index_var;
1769 guint32 label2, label3;
1771 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1772 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1773 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1776 mono_mb_emit_ldloc (mb, 0);
1777 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1778 mono_mb_emit_stloc (mb, array_var);
1780 /* save the old src pointer */
1781 mono_mb_emit_ldloc (mb, 0);
1782 mono_mb_emit_stloc (mb, src_var);
1783 /* save the old dst pointer */
1784 mono_mb_emit_ldloc (mb, 1);
1785 mono_mb_emit_stloc (mb, dst_var);
1787 /* Emit marshalling loop */
1788 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1789 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1790 mono_mb_emit_stloc (mb, index_var);
1793 label2 = mono_mb_get_label (mb);
1794 mono_mb_emit_ldloc (mb, index_var);
1795 mono_mb_emit_ldloc (mb, array_var);
1796 mono_mb_emit_byte (mb, CEE_LDLEN);
1797 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1800 mono_mb_emit_ldloc (mb, array_var);
1801 mono_mb_emit_ldloc (mb, index_var);
1802 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1803 mono_mb_emit_stloc (mb, 0);
1805 /* dst is already set */
1807 /* Do the conversion */
1808 emit_struct_conv (mb, eklass, FALSE);
1811 mono_mb_emit_add_to_local (mb, index_var, 1);
1813 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1815 mono_mb_patch_branch (mb, label3);
1817 /* restore the old src pointer */
1818 mono_mb_emit_ldloc (mb, src_var);
1819 mono_mb_emit_stloc (mb, 0);
1820 /* restore the old dst pointer */
1821 mono_mb_emit_ldloc (mb, dst_var);
1822 mono_mb_emit_stloc (mb, 1);
1825 mono_mb_patch_branch (mb, pos);
1828 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1829 mono_mb_emit_ldloc (mb, 0);
1830 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1831 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1833 mono_mb_emit_ldloc (mb, 1);
1834 mono_mb_emit_ldloc (mb, 0);
1835 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1836 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1837 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1838 mono_mb_patch_short_branch (mb, pos);
1841 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1842 int src_var, dst_var;
1844 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1845 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1847 mono_mb_emit_ldloc (mb, 0);
1848 mono_mb_emit_byte (mb, CEE_LDIND_I);
1849 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1851 /* save the old src pointer */
1852 mono_mb_emit_ldloc (mb, 0);
1853 mono_mb_emit_stloc (mb, src_var);
1854 /* save the old dst pointer */
1855 mono_mb_emit_ldloc (mb, 1);
1856 mono_mb_emit_stloc (mb, dst_var);
1858 /* src = pointer to object data */
1859 mono_mb_emit_ldloc (mb, 0);
1860 mono_mb_emit_byte (mb, CEE_LDIND_I);
1861 mono_mb_emit_icon (mb, sizeof (MonoObject));
1862 mono_mb_emit_byte (mb, CEE_ADD);
1863 mono_mb_emit_stloc (mb, 0);
1865 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1867 /* restore the old src pointer */
1868 mono_mb_emit_ldloc (mb, src_var);
1869 mono_mb_emit_stloc (mb, 0);
1870 /* restore the old dst pointer */
1871 mono_mb_emit_ldloc (mb, dst_var);
1872 mono_mb_emit_stloc (mb, 1);
1874 mono_mb_patch_branch (mb, pos);
1879 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1880 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1881 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1882 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1884 #endif /* DISABLE_COM */
1886 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1889 mono_mb_emit_ldloc (mb, 0);
1890 mono_mb_emit_byte (mb, CEE_LDIND_I);
1891 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1892 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1893 mono_mb_patch_branch (mb, pos);
1895 /* Pull the handle field from SafeHandle */
1896 mono_mb_emit_ldloc (mb, 1);
1897 mono_mb_emit_ldloc (mb, 0);
1898 mono_mb_emit_byte (mb, CEE_LDIND_I);
1899 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1900 mono_mb_emit_byte (mb, CEE_LDIND_I);
1901 mono_mb_emit_byte (mb, CEE_STIND_I);
1905 case MONO_MARSHAL_CONV_HANDLEREF: {
1906 mono_mb_emit_ldloc (mb, 1);
1907 mono_mb_emit_ldloc (mb, 0);
1908 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1909 mono_mb_emit_byte (mb, CEE_ADD);
1910 mono_mb_emit_byte (mb, CEE_LDIND_I);
1911 mono_mb_emit_byte (mb, CEE_STIND_I);
1916 g_error ("marshalling conversion %d not implemented", conv);
1921 static int offset_of_first_nonstatic_field(MonoClass *klass)
1924 for (i = 0; i < klass->field.count; i++) {
1925 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
1926 return klass->fields[i].offset - sizeof (MonoObject);
1933 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1934 int offset_of_first_child_field, MonoMarshalNative string_encoding)
1936 MonoMarshalType *info;
1940 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
1942 info = mono_marshal_load_type_info (klass);
1944 if (info->native_size == 0)
1947 if (klass->blittable) {
1948 int usize = mono_class_value_size (klass, NULL);
1949 g_assert (usize == info->native_size);
1950 mono_mb_emit_ldloc (mb, 1);
1951 mono_mb_emit_ldloc (mb, 0);
1952 mono_mb_emit_icon (mb, usize);
1953 mono_mb_emit_byte (mb, CEE_PREFIX1);
1954 mono_mb_emit_byte (mb, CEE_CPBLK);
1957 mono_mb_emit_add_to_local (mb, 0, usize);
1958 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
1960 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
1961 mono_mb_emit_add_to_local (mb, 1, usize);
1966 if (klass != mono_class_try_get_safehandle_class ()) {
1967 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1968 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1969 mono_type_full_name (&klass->byval_arg));
1970 mono_mb_emit_exception_marshal_directive (mb, msg);
1975 for (i = 0; i < info->num_fields; i++) {
1976 MonoMarshalNative ntype;
1977 MonoMarshalConv conv;
1978 MonoType *ftype = info->fields [i].field->type;
1981 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1983 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1986 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1989 msize = klass->instance_size - info->fields [i].field->offset;
1990 usize = info->native_size - info->fields [i].offset;
1992 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1993 usize = info->fields [i + 1].offset - info->fields [i].offset;
1996 if (klass != mono_class_try_get_safehandle_class ()){
1998 * FIXME: Should really check for usize==0 and msize>0, but we apply
1999 * the layout to the managed structure as well.
2002 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2003 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2004 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2005 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2006 "reference field at the same offset as another field.",
2007 mono_type_full_name (&klass->byval_arg));
2012 case MONO_MARSHAL_CONV_NONE: {
2015 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2016 g_assert (!ftype->byref);
2017 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2018 mono_mb_emit_ldloc (mb, 1);
2019 mono_mb_emit_ldloc (mb, 0);
2020 mono_mb_emit_byte (mb, CEE_LDIND_I);
2021 mono_mb_emit_byte (mb, CEE_STIND_I);
2032 case MONO_TYPE_BOOLEAN:
2035 case MONO_TYPE_CHAR:
2041 mono_mb_emit_ldloc (mb, 1);
2042 mono_mb_emit_ldloc (mb, 0);
2043 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2045 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2046 mono_mb_emit_byte (mb, CEE_STIND_I2);
2048 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2049 mono_mb_emit_byte (mb, CEE_STIND_I1);
2052 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2053 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2056 case MONO_TYPE_VALUETYPE: {
2057 int src_var, dst_var;
2059 if (ftype->data.klass->enumtype) {
2060 ftype = mono_class_enum_basetype (ftype->data.klass);
2064 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2065 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2067 /* save the old src pointer */
2068 mono_mb_emit_ldloc (mb, 0);
2069 mono_mb_emit_stloc (mb, src_var);
2070 /* save the old dst pointer */
2071 mono_mb_emit_ldloc (mb, 1);
2072 mono_mb_emit_stloc (mb, dst_var);
2074 emit_struct_conv (mb, ftype->data.klass, to_object);
2076 /* restore the old src pointer */
2077 mono_mb_emit_ldloc (mb, src_var);
2078 mono_mb_emit_stloc (mb, 0);
2079 /* restore the old dst pointer */
2080 mono_mb_emit_ldloc (mb, dst_var);
2081 mono_mb_emit_stloc (mb, 1);
2084 case MONO_TYPE_OBJECT: {
2087 static MonoMethod *variant_clear = NULL;
2088 static MonoMethod *get_object_for_native_variant = NULL;
2091 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2092 if (!get_object_for_native_variant)
2093 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2094 mono_mb_emit_ldloc (mb, 1);
2095 mono_mb_emit_ldloc (mb, 0);
2096 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2097 mono_mb_emit_byte (mb, CEE_STIND_REF);
2099 mono_mb_emit_ldloc (mb, 0);
2100 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2103 static MonoMethod *get_native_variant_for_object = NULL;
2105 if (!get_native_variant_for_object)
2106 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2108 mono_mb_emit_ldloc (mb, 0);
2109 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2110 mono_mb_emit_ldloc (mb, 1);
2111 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2114 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2115 mono_mb_emit_exception_marshal_directive (mb, msg);
2121 g_warning ("marshaling type %02x not implemented", ftype->type);
2122 g_assert_not_reached ();
2127 int src_var, dst_var;
2129 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2130 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2132 /* save the old src pointer */
2133 mono_mb_emit_ldloc (mb, 0);
2134 mono_mb_emit_stloc (mb, src_var);
2135 /* save the old dst pointer */
2136 mono_mb_emit_ldloc (mb, 1);
2137 mono_mb_emit_stloc (mb, dst_var);
2140 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2142 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2144 /* restore the old src pointer */
2145 mono_mb_emit_ldloc (mb, src_var);
2146 mono_mb_emit_stloc (mb, 0);
2147 /* restore the old dst pointer */
2148 mono_mb_emit_ldloc (mb, dst_var);
2149 mono_mb_emit_stloc (mb, 1);
2154 mono_mb_emit_add_to_local (mb, 0, usize);
2155 mono_mb_emit_add_to_local (mb, 1, msize);
2157 mono_mb_emit_add_to_local (mb, 0, msize);
2158 mono_mb_emit_add_to_local (mb, 1, usize);
2164 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2166 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2170 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2172 /* Call DestroyStructure */
2173 /* FIXME: Only do this if needed */
2174 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2175 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2176 mono_mb_emit_ldloc (mb, struct_var);
2177 mono_mb_emit_icall (mb, mono_struct_delete_old);
2181 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2183 int pos_noabort, pos_noex;
2185 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2186 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2187 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2188 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2190 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2191 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2193 mono_mb_emit_icall (mb, checkpoint_func);
2194 /* Throw the exception returned by the checkpoint function, if any */
2195 mono_mb_emit_byte (mb, CEE_DUP);
2196 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2197 mono_mb_emit_byte (mb, CEE_THROW);
2198 mono_mb_patch_branch (mb, pos_noex);
2199 mono_mb_emit_byte (mb, CEE_POP);
2201 mono_mb_patch_branch (mb, pos_noabort);
2205 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2207 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2210 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2214 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2216 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2220 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2222 emit_thread_interrupt_checkpoint (mb);
2226 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2228 emit_thread_force_interrupt_checkpoint (mb);
2231 #endif /* DISABLE_JIT */
2233 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2234 static MonoAsyncResult *
2235 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2238 MonoMulticastDelegate *mcast_delegate;
2242 g_assert (delegate);
2243 mcast_delegate = (MonoMulticastDelegate *) delegate;
2244 if (mcast_delegate->delegates != NULL) {
2245 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2249 #ifndef DISABLE_REMOTING
2250 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2251 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2252 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2253 /* If the target is a proxy, make a direct call. Is proxy's work
2254 // to make the call asynchronous.
2256 MonoMethodMessage *msg;
2257 MonoDelegate *async_callback;
2259 MonoAsyncResult *ares;
2261 MonoArray *out_args;
2262 method = delegate->method;
2264 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2265 if (mono_error_set_pending_exception (&error))
2267 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2268 if (mono_error_set_pending_exception (&error))
2270 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2271 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2272 MONO_OBJECT_SETREF (msg, async_result, ares);
2273 msg->call_type = CallType_BeginInvoke;
2276 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2277 if (!mono_error_ok (&error)) {
2278 mono_error_set_pending_exception (&error);
2282 mono_set_pending_exception ((MonoException *) exc);
2288 klass = delegate->object.vtable->klass;
2290 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2292 method = mono_get_delegate_invoke (klass);
2295 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2296 mono_error_set_pending_exception (&error);
2303 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2305 int i, params_var, tmp_var;
2307 /* allocate local (pointer) *params[] */
2308 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2309 /* allocate local (pointer) tmp */
2310 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2312 /* alloate space on stack to store an array of pointers to the arguments */
2313 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2314 mono_mb_emit_byte (mb, CEE_PREFIX1);
2315 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2316 mono_mb_emit_stloc (mb, params_var);
2319 mono_mb_emit_ldloc (mb, params_var);
2320 mono_mb_emit_stloc (mb, tmp_var);
2322 if (save_this && sig->hasthis) {
2323 mono_mb_emit_ldloc (mb, tmp_var);
2324 mono_mb_emit_ldarg_addr (mb, 0);
2325 mono_mb_emit_byte (mb, CEE_STIND_I);
2326 /* tmp = tmp + sizeof (gpointer) */
2327 if (sig->param_count)
2328 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2332 for (i = 0; i < sig->param_count; i++) {
2333 mono_mb_emit_ldloc (mb, tmp_var);
2334 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2335 mono_mb_emit_byte (mb, CEE_STIND_I);
2336 /* tmp = tmp + sizeof (gpointer) */
2337 if (i < (sig->param_count - 1))
2338 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2344 #endif /* DISABLE_JIT */
2347 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2351 GString *res = g_string_new ("");
2354 g_string_append (res, prefix);
2355 g_string_append_c (res, '_');
2358 mono_type_get_desc (res, sig->ret, FALSE);
2361 g_string_append (res, "__this__");
2363 for (i = 0; i < sig->param_count; ++i) {
2364 g_string_append_c (res, '_');
2365 mono_type_get_desc (res, sig->params [i], FALSE);
2368 g_string_free (res, FALSE);
2373 * mono_marshal_get_string_encoding:
2375 * Return the string encoding which should be used for a given parameter.
2377 static MonoMarshalNative
2378 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2380 /* First try the parameter marshal info */
2382 if (spec->native == MONO_NATIVE_LPARRAY) {
2383 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2384 return spec->data.array_data.elem_type;
2387 return spec->native;
2391 return MONO_NATIVE_LPSTR;
2393 /* Then try the method level marshal info */
2394 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2395 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2396 return MONO_NATIVE_LPSTR;
2397 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2398 return MONO_NATIVE_LPWSTR;
2399 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2401 return MONO_NATIVE_LPWSTR;
2403 return MONO_NATIVE_LPSTR;
2406 return MONO_NATIVE_LPSTR;
2410 static MonoMarshalConv
2411 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2413 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2416 case MONO_NATIVE_LPWSTR:
2417 return MONO_MARSHAL_CONV_STR_LPWSTR;
2418 case MONO_NATIVE_LPSTR:
2419 case MONO_NATIVE_VBBYREFSTR:
2420 return MONO_MARSHAL_CONV_STR_LPSTR;
2421 case MONO_NATIVE_LPTSTR:
2422 return MONO_MARSHAL_CONV_STR_LPTSTR;
2423 case MONO_NATIVE_BSTR:
2424 return MONO_MARSHAL_CONV_STR_BSTR;
2425 case MONO_NATIVE_UTF8STR:
2426 return MONO_MARSHAL_CONV_STR_UTF8STR;
2428 return MONO_MARSHAL_CONV_INVALID;
2432 static MonoMarshalConv
2433 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2435 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2438 case MONO_NATIVE_LPWSTR:
2439 return MONO_MARSHAL_CONV_SB_LPWSTR;
2440 case MONO_NATIVE_LPSTR:
2441 return MONO_MARSHAL_CONV_SB_LPSTR;
2442 case MONO_NATIVE_UTF8STR:
2443 return MONO_MARSHAL_CONV_SB_UTF8STR;
2444 case MONO_NATIVE_LPTSTR:
2445 return MONO_MARSHAL_CONV_SB_LPTSTR;
2447 return MONO_MARSHAL_CONV_INVALID;
2451 static MonoMarshalConv
2452 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2454 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2459 case MONO_NATIVE_LPWSTR:
2461 return MONO_MARSHAL_CONV_LPWSTR_STR;
2462 case MONO_NATIVE_UTF8STR:
2463 return MONO_MARSHAL_CONV_UTF8STR_STR;
2464 case MONO_NATIVE_LPSTR:
2465 case MONO_NATIVE_VBBYREFSTR:
2466 return MONO_MARSHAL_CONV_LPSTR_STR;
2467 case MONO_NATIVE_LPTSTR:
2468 return MONO_MARSHAL_CONV_LPTSTR_STR;
2469 case MONO_NATIVE_BSTR:
2470 return MONO_MARSHAL_CONV_BSTR_STR;
2472 return MONO_MARSHAL_CONV_INVALID;
2476 static MonoMarshalConv
2477 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2479 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2484 case MONO_NATIVE_LPWSTR:
2486 * mono_string_builder_to_utf16 does not allocate a
2487 * new buffer, so no need to free it.
2490 return MONO_MARSHAL_CONV_LPWSTR_SB;
2491 case MONO_NATIVE_UTF8STR:
2492 return MONO_MARSHAL_CONV_UTF8STR_SB;
2493 case MONO_NATIVE_LPSTR:
2494 return MONO_MARSHAL_CONV_LPSTR_SB;
2496 case MONO_NATIVE_LPTSTR:
2497 return MONO_MARSHAL_CONV_LPTSTR_SB;
2500 return MONO_MARSHAL_CONV_INVALID;
2505 * Return whenever a field of a native structure or an array member needs to
2509 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2511 MonoMarshalNative encoding;
2514 case MONO_TYPE_VALUETYPE:
2515 /* FIXME: Optimize this */
2517 case MONO_TYPE_OBJECT:
2518 case MONO_TYPE_CLASS:
2519 if (t->data.klass == mono_defaults.stringbuilder_class) {
2521 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2525 case MONO_TYPE_STRING:
2526 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2527 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2534 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2537 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2540 mono_marshal_lock ();
2543 g_hash_table_new (hash_func, equal_func);
2544 mono_memory_barrier ();
2547 mono_marshal_unlock ();
2553 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2555 return get_cache (var, hash_func, equal_func);
2559 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2563 mono_marshal_lock ();
2564 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2565 mono_marshal_unlock ();
2572 * Create a MonoMethod from MB, set INFO as wrapper info.
2575 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2576 int max_stack, WrapperInfo *info)
2580 res = mono_mb_create_method (mb, sig, max_stack);
2582 mono_marshal_set_wrapper_info (res, info);
2586 /* Create the method from the builder and place it in the cache */
2588 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2589 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2590 int max_stack, WrapperInfo *info, gboolean *out_found)
2597 mono_marshal_lock ();
2598 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2599 mono_marshal_unlock ();
2602 newm = mono_mb_create_method (mb, sig, max_stack);
2603 mono_marshal_lock ();
2604 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2607 g_hash_table_insert (cache, key, res);
2608 mono_marshal_set_wrapper_info (res, info);
2609 mono_marshal_unlock ();
2613 mono_marshal_unlock ();
2614 mono_free_method (newm);
2622 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2623 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2626 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2630 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2633 int wrapper_type = wrapper->wrapper_type;
2636 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2639 info = mono_marshal_get_wrapper_info (wrapper);
2641 switch (wrapper_type) {
2642 case MONO_WRAPPER_REMOTING_INVOKE:
2643 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2644 case MONO_WRAPPER_XDOMAIN_INVOKE:
2645 m = info->d.remoting.method;
2646 if (wrapper->is_inflated) {
2650 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2651 * contains an uninflated method.
2653 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2654 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2658 case MONO_WRAPPER_SYNCHRONIZED:
2659 m = info->d.synchronized.method;
2660 if (wrapper->is_inflated) {
2663 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2664 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2668 case MONO_WRAPPER_UNBOX:
2669 return info->d.unbox.method;
2670 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2671 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2672 return info->d.managed_to_native.method;
2675 case MONO_WRAPPER_RUNTIME_INVOKE:
2676 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2677 return info->d.runtime_invoke.method;
2680 case MONO_WRAPPER_DELEGATE_INVOKE:
2682 return info->d.delegate_invoke.method;
2691 * mono_marshal_get_wrapper_info:
2693 * Retrieve the WrapperInfo structure associated with WRAPPER.
2696 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2698 g_assert (wrapper->wrapper_type);
2700 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2704 * mono_marshal_set_wrapper_info:
2706 * Set the WrapperInfo structure associated with the wrapper
2707 * method METHOD to INFO.
2710 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2714 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2717 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2722 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2726 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2727 info->subtype = subtype;
2732 * get_wrapper_target_class:
2734 * Return the class where a wrapper method should be placed.
2737 get_wrapper_target_class (MonoImage *image)
2744 * - can't put all wrappers into an mscorlib class, because they reference
2745 * metadata (signature) so they should be put into the same image as the
2746 * method they wrap, so they are unloaded together.
2747 * - putting them into a class with a type initalizer could cause the
2748 * initializer to be executed which can be a problem if the wrappers are
2750 * - putting them into an inflated class can cause problems if the the
2751 * class is deleted because it references an image which is unloaded.
2752 * To avoid these problems, we put the wrappers into the <Module> class of
2755 if (image_is_dynamic (image)) {
2756 klass = ((MonoDynamicImage*)image)->wrappers_type;
2758 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2759 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2767 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2768 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2772 * check_generic_wrapper_cache:
2774 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2775 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2776 * generic method definition.
2779 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2782 MonoMethod *inst, *def;
2783 MonoGenericContext *ctx;
2785 g_assert (orig_method->is_inflated);
2786 ctx = mono_method_get_context (orig_method);
2789 * Look for the instance
2791 res = mono_marshal_find_in_cache (cache, key);
2796 * Look for the definition
2798 def = mono_marshal_find_in_cache (cache, def_key);
2801 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2802 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2804 mono_memory_barrier ();
2805 mono_marshal_lock ();
2806 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2808 g_hash_table_insert (cache, key, inst);
2811 mono_marshal_unlock ();
2818 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2821 MonoMethod *inst, *res;
2824 * We use the same cache for the generic definition and the instances.
2826 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2827 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2828 mono_memory_barrier ();
2829 mono_marshal_lock ();
2830 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2832 g_hash_table_insert (cache, key, inst);
2835 mono_marshal_unlock ();
2840 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2844 MonoMethod *inst, *def;
2847 * Look for the instance
2849 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2854 * Look for the definition
2856 def = mono_marshal_find_in_cache (cache, def_method->klass);
2858 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2859 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2862 mono_memory_barrier ();
2863 mono_marshal_lock ();
2864 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2866 g_hash_table_insert (cache, orig_method->klass, inst);
2869 mono_marshal_unlock ();
2876 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2879 MonoMethod *inst, *res;
2880 WrapperInfo *ginfo, *info;
2883 * We use the same cache for the generic definition and the instances.
2885 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2886 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2888 ginfo = mono_marshal_get_wrapper_info (def);
2890 info = (WrapperInfo *)mono_image_alloc0 (def->klass->image, sizeof (WrapperInfo));
2891 info->subtype = ginfo->subtype;
2892 if (info->subtype == WRAPPER_SUBTYPE_NONE) {
2893 info->d.delegate_invoke.method = mono_class_inflate_generic_method_checked (ginfo->d.delegate_invoke.method, ctx, &error);
2894 mono_error_assert_ok (&error);
2898 mono_memory_barrier ();
2899 mono_marshal_lock ();
2900 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2902 g_hash_table_insert (cache, orig_method->klass, inst);
2905 mono_marshal_unlock ();
2910 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2912 MonoMethodSignature *sig;
2913 MonoMethodBuilder *mb;
2918 MonoGenericContext *ctx = NULL;
2919 MonoMethod *orig_method = NULL;
2921 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2922 !strcmp (method->name, "BeginInvoke"));
2925 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2927 if (method->is_inflated) {
2928 orig_method = method;
2929 ctx = &((MonoMethodInflated*)method)->context;
2930 method = ((MonoMethodInflated*)method)->declaring;
2933 sig = mono_signature_no_pinvoke (method);
2939 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2940 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2944 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2945 (GHashFunc)mono_signature_hash,
2946 (GCompareFunc)mono_metadata_signature_equal);
2947 if ((res = mono_marshal_find_in_cache (cache, sig)))
2951 g_assert (sig->hasthis);
2953 name = mono_signature_to_name (sig, "begin_invoke");
2955 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2957 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2961 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2963 mono_mb_emit_ldarg (mb, 0);
2964 mono_mb_emit_ldloc (mb, params_var);
2965 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2966 mono_mb_emit_byte (mb, CEE_RET);
2971 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2972 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2974 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2981 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2983 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2986 MonoDomain *domain = mono_domain_get ();
2987 MonoAsyncResult *ares;
2988 MonoMethod *method = NULL;
2989 MonoMethodSignature *sig;
2990 MonoMethodMessage *msg;
2991 MonoObject *res, *exc;
2992 MonoArray *out_args;
2995 g_assert (delegate);
2997 if (!delegate->method_info) {
2998 g_assert (delegate->method);
2999 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
3000 if (!mono_error_ok (&error)) {
3001 mono_error_set_pending_exception (&error);
3004 MONO_OBJECT_SETREF (delegate, method_info, rm);
3007 if (!delegate->method_info || !delegate->method_info->method)
3008 g_assert_not_reached ();
3010 klass = delegate->object.vtable->klass;
3012 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3013 g_assert (method != NULL);
3015 sig = mono_signature_no_pinvoke (method);
3017 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3018 if (mono_error_set_pending_exception (&error))
3021 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3023 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."));
3027 if (ares->async_delegate != (MonoObject*)delegate) {
3028 mono_set_pending_exception (mono_get_exception_invalid_operation (
3029 "The IAsyncResult object provided does not match this delegate."));
3033 #ifndef DISABLE_REMOTING
3034 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3035 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3036 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3037 if (!mono_error_ok (&error)) {
3038 mono_error_set_pending_exception (&error);
3041 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3042 if (mono_error_set_pending_exception (&error))
3044 msg->call_type = CallType_EndInvoke;
3045 MONO_OBJECT_SETREF (msg, async_result, ares);
3046 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3047 if (!mono_error_ok (&error)) {
3048 mono_error_set_pending_exception (&error);
3054 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc, &error);
3055 if (mono_error_set_pending_exception (&error))
3060 if (((MonoException*)exc)->stack_trace) {
3061 MonoError inner_error;
3062 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3063 if (is_ok (&inner_error)) {
3065 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3067 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3070 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3072 mono_set_pending_exception ((MonoException*)exc);
3075 mono_method_return_message_restore (method, params, out_args, &error);
3076 mono_error_set_pending_exception (&error);
3083 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3085 MonoType *t = mono_type_get_underlying_type (return_type);
3087 if (return_type->byref)
3088 return_type = &mono_defaults.int_class->byval_arg;
3091 case MONO_TYPE_VOID:
3092 g_assert_not_reached ();
3095 case MONO_TYPE_STRING:
3096 case MONO_TYPE_CLASS:
3097 case MONO_TYPE_OBJECT:
3098 case MONO_TYPE_ARRAY:
3099 case MONO_TYPE_SZARRAY:
3103 case MONO_TYPE_BOOLEAN:
3106 case MONO_TYPE_CHAR:
3116 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3117 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3119 case MONO_TYPE_GENERICINST:
3120 if (!mono_type_generic_inst_is_valuetype (t))
3123 case MONO_TYPE_VALUETYPE: {
3124 MonoClass *klass = mono_class_from_mono_type (return_type);
3125 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3126 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3130 case MONO_TYPE_MVAR: {
3131 MonoClass *klass = mono_class_from_mono_type (return_type);
3132 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3136 g_warning ("type 0x%x not handled", return_type->type);
3137 g_assert_not_reached ();
3140 mono_mb_emit_byte (mb, CEE_RET);
3143 #endif /* DISABLE_JIT */
3146 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3148 MonoMethodSignature *sig;
3149 MonoMethodBuilder *mb;
3154 MonoGenericContext *ctx = NULL;
3155 MonoMethod *orig_method = NULL;
3157 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3158 !strcmp (method->name, "EndInvoke"));
3161 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3163 if (method->is_inflated) {
3164 orig_method = method;
3165 ctx = &((MonoMethodInflated*)method)->context;
3166 method = ((MonoMethodInflated*)method)->declaring;
3169 sig = mono_signature_no_pinvoke (method);
3175 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3176 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3180 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3181 (GHashFunc)mono_signature_hash,
3182 (GCompareFunc)mono_metadata_signature_equal);
3183 if ((res = mono_marshal_find_in_cache (cache, sig)))
3187 g_assert (sig->hasthis);
3189 name = mono_signature_to_name (sig, "end_invoke");
3191 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3193 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3197 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3199 mono_mb_emit_ldarg (mb, 0);
3200 mono_mb_emit_ldloc (mb, params_var);
3201 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3203 if (sig->ret->type == MONO_TYPE_VOID) {
3204 mono_mb_emit_byte (mb, CEE_POP);
3205 mono_mb_emit_byte (mb, CEE_RET);
3207 mono_mb_emit_restore_result (mb, sig->ret);
3212 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3213 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3215 res = mono_mb_create_and_cache (cache, sig,
3216 mb, sig, sig->param_count + 16);
3225 MonoMethodSignature *sig;
3227 } SignaturePointerPair;
3230 signature_pointer_pair_hash (gconstpointer data)
3232 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3234 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3238 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3240 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3241 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3245 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3247 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3249 return pair->pointer == user_data;
3253 free_signature_pointer_pair (SignaturePointerPair *pair)
3259 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3261 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3263 MonoMethodBuilder *mb;
3266 gpointer cache_key = NULL;
3267 SignaturePointerPair key;
3268 SignaturePointerPair *new_key;
3269 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3270 int pos0, pos1, pos2;
3272 MonoClass *target_class = NULL;
3273 gboolean closed_over_null = FALSE;
3274 MonoGenericContext *ctx = NULL;
3275 MonoGenericContainer *container = NULL;
3276 MonoMethod *orig_method = method;
3278 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3282 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3283 !strcmp (method->name, "Invoke"));
3285 invoke_sig = sig = mono_signature_no_pinvoke (method);
3288 * If the delegate target is null, and the target method is not static, a virtual
3289 * call is made to that method with the first delegate argument as this. This is
3290 * a non-documented .NET feature.
3293 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3294 if (target_method->is_inflated) {
3296 MonoType *target_type;
3298 g_assert (method->signature->hasthis);
3299 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3300 mono_method_get_context (method), &error);
3301 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3302 target_class = mono_class_from_mono_type (target_type);
3304 target_class = target_method->klass;
3307 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3310 if (static_method_with_first_arg_bound) {
3311 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3312 g_assert (!callvirt);
3313 invoke_sig = mono_method_signature (target_method);
3317 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3319 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3320 ctx = &((MonoMethodInflated*)method)->context;
3321 method = ((MonoMethodInflated*)method)->declaring;
3323 container = mono_method_get_generic_container (method);
3325 container = method->klass->generic_container;
3326 g_assert (container);
3328 invoke_sig = sig = mono_signature_no_pinvoke (method);
3335 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3336 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3339 cache_key = method->klass;
3340 } else if (static_method_with_first_arg_bound) {
3341 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3342 (GHashFunc)mono_signature_hash,
3343 (GCompareFunc)mono_metadata_signature_equal);
3345 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3347 res = mono_marshal_find_in_cache (cache, invoke_sig);
3350 cache_key = invoke_sig;
3351 } else if (callvirt) {
3352 GHashTable **cache_ptr;
3354 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3356 /* We need to cache the signature+method pair */
3357 mono_marshal_lock ();
3359 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3361 key.sig = invoke_sig;
3362 key.pointer = target_method;
3363 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3364 mono_marshal_unlock ();
3368 // Inflated methods should not be in this cache because it's not stored on the imageset.
3369 g_assert (!method->is_inflated);
3370 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3371 (GHashFunc)mono_signature_hash,
3372 (GCompareFunc)mono_metadata_signature_equal);
3373 res = mono_marshal_find_in_cache (cache, sig);
3379 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3380 static_sig->hasthis = 0;
3381 if (!static_method_with_first_arg_bound)
3382 invoke_sig = static_sig;
3384 if (static_method_with_first_arg_bound)
3385 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3386 else if (closed_over_null)
3387 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3389 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3391 name = mono_signature_to_name (invoke_sig, "invoke");
3393 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3395 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3399 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3401 /* allocate local 0 (object) */
3402 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3403 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3404 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3405 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3406 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3409 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3411 g_assert (sig->hasthis);
3414 * {type: sig->ret} res;
3415 * if (delegates == null) {
3416 * return this.<target> ( args .. );
3418 * int i = 0, len = this.delegates.Length;
3420 * res = this.delegates [i].Invoke ( args .. );
3421 * } while (++i < len);
3426 /* this wrapper can be used in unmanaged-managed transitions */
3427 emit_thread_interrupt_checkpoint (mb);
3429 /* delegates = this.delegates */
3430 mono_mb_emit_ldarg (mb, 0);
3431 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3432 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3433 mono_mb_emit_stloc (mb, local_delegates);
3435 /* if (delegates == null) */
3436 mono_mb_emit_ldloc (mb, local_delegates);
3437 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3439 /* return target.<target_method|method_ptr> ( args .. ); */
3441 /* target = d.target; */
3442 mono_mb_emit_ldarg (mb, 0);
3443 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3444 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3445 mono_mb_emit_stloc (mb, local_target);
3447 /*static methods with bound first arg can have null target and still be bound*/
3448 if (!static_method_with_first_arg_bound) {
3449 /* if target != null */
3450 mono_mb_emit_ldloc (mb, local_target);
3451 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3453 /* then call this->method_ptr nonstatic */
3456 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3458 mono_mb_emit_ldloc (mb, local_target);
3459 for (i = 0; i < sig->param_count; ++i)
3460 mono_mb_emit_ldarg (mb, i + 1);
3461 mono_mb_emit_ldarg (mb, 0);
3462 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3463 mono_mb_emit_byte (mb, CEE_LDIND_I);
3464 mono_mb_emit_ldarg (mb, 0);
3465 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3466 mono_mb_emit_byte (mb, CEE_LDIND_I);
3467 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3468 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3469 mono_mb_emit_byte (mb, CEE_RET);
3472 /* else [target == null] call this->method_ptr static */
3473 mono_mb_patch_branch (mb, pos0);
3477 if (!closed_over_null) {
3478 if (target_class->valuetype) {
3479 mono_mb_emit_ldarg (mb, 1);
3480 for (i = 1; i < sig->param_count; ++i)
3481 mono_mb_emit_ldarg (mb, i + 1);
3482 mono_mb_emit_op (mb, CEE_CALL, target_method);
3484 mono_mb_emit_ldarg (mb, 1);
3485 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3486 for (i = 1; i < sig->param_count; ++i)
3487 mono_mb_emit_ldarg (mb, i + 1);
3488 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3491 mono_mb_emit_byte (mb, CEE_LDNULL);
3492 for (i = 0; i < sig->param_count; ++i)
3493 mono_mb_emit_ldarg (mb, i + 1);
3494 mono_mb_emit_op (mb, CEE_CALL, target_method);
3497 if (static_method_with_first_arg_bound) {
3498 mono_mb_emit_ldloc (mb, local_target);
3499 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3500 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3502 for (i = 0; i < sig->param_count; ++i)
3503 mono_mb_emit_ldarg (mb, i + 1);
3504 mono_mb_emit_ldarg (mb, 0);
3505 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3506 mono_mb_emit_byte (mb, CEE_LDIND_I);
3507 mono_mb_emit_ldarg (mb, 0);
3508 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3509 mono_mb_emit_byte (mb, CEE_LDIND_I);
3510 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3511 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3514 mono_mb_emit_byte (mb, CEE_RET);
3516 /* else [delegates != null] */
3517 mono_mb_patch_branch (mb, pos2);
3519 /* len = delegates.Length; */
3520 mono_mb_emit_ldloc (mb, local_delegates);
3521 mono_mb_emit_byte (mb, CEE_LDLEN);
3522 mono_mb_emit_byte (mb, CEE_CONV_I4);
3523 mono_mb_emit_stloc (mb, local_len);
3526 mono_mb_emit_icon (mb, 0);
3527 mono_mb_emit_stloc (mb, local_i);
3529 pos1 = mono_mb_get_label (mb);
3531 /* d = delegates [i]; */
3532 mono_mb_emit_ldloc (mb, local_delegates);
3533 mono_mb_emit_ldloc (mb, local_i);
3534 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3535 mono_mb_emit_stloc (mb, local_d);
3537 /* res = d.Invoke ( args .. ); */
3538 mono_mb_emit_ldloc (mb, local_d);
3539 for (i = 0; i < sig->param_count; i++)
3540 mono_mb_emit_ldarg (mb, i + 1);
3542 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3545 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3546 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3549 mono_mb_emit_stloc (mb, local_res);
3552 mono_mb_emit_add_to_local (mb, local_i, 1);
3555 mono_mb_emit_ldloc (mb, local_i);
3556 mono_mb_emit_ldloc (mb, local_len);
3557 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3561 mono_mb_emit_ldloc (mb, local_res);
3562 mono_mb_emit_byte (mb, CEE_RET);
3564 mb->skip_visibility = 1;
3565 #endif /* DISABLE_JIT */
3567 info = mono_wrapper_info_create (mb, subtype);
3568 info->d.delegate_invoke.method = method;
3573 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3574 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3575 } else if (callvirt) {
3576 new_key = g_new0 (SignaturePointerPair, 1);
3579 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3583 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3587 /* mono_method_print_code (res); */
3593 * the returned method invokes all methods in a multicast delegate.
3596 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3598 gboolean callvirt = FALSE;
3599 gboolean static_method_with_first_arg_bound = FALSE;
3600 MonoMethod *target_method = NULL;
3601 MonoMethodSignature *sig;
3603 sig = mono_signature_no_pinvoke (method);
3605 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3607 target_method = del->method;
3610 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3611 static_method_with_first_arg_bound = TRUE;
3612 target_method = del->method;
3615 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3619 MonoMethodSignature *ctor_sig;
3620 MonoMethodSignature *sig;
3623 /* protected by the marshal lock, contains CtorSigPair pointers */
3624 static GSList *strsig_list = NULL;
3626 static MonoMethodSignature *
3627 lookup_string_ctor_signature (MonoMethodSignature *sig)
3629 MonoMethodSignature *callsig;
3633 mono_marshal_lock ();
3635 for (item = strsig_list; item; item = item->next) {
3636 cs = (CtorSigPair *)item->data;
3637 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3638 * because it is lock-free.
3640 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3645 mono_marshal_unlock ();
3649 static MonoMethodSignature *
3650 add_string_ctor_signature (MonoMethod *method)
3652 MonoMethodSignature *callsig;
3655 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3656 callsig->ret = &mono_defaults.string_class->byval_arg;
3657 cs = g_new (CtorSigPair, 1);
3659 cs->ctor_sig = mono_method_signature (method);
3661 mono_marshal_lock ();
3662 strsig_list = g_slist_prepend (strsig_list, cs);
3663 mono_marshal_unlock ();
3668 * mono_marshal_get_string_ctor_signature:
3670 * Return the modified signature used by string ctors (they return the newly created
3673 MonoMethodSignature*
3674 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3676 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3678 sig = add_string_ctor_signature (method);
3684 get_runtime_invoke_type (MonoType *t, gboolean ret)
3687 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3689 /* Can't share this with 'I' as that needs another indirection */
3690 return &mono_defaults.int_class->this_arg;
3693 if (MONO_TYPE_IS_REFERENCE (t))
3694 return &mono_defaults.object_class->byval_arg;
3697 /* The result needs to be boxed */
3702 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3705 return &mono_defaults.sbyte_class->byval_arg;
3707 return &mono_defaults.int16_class->byval_arg;
3709 return &mono_defaults.int32_class->byval_arg;
3712 return &mono_defaults.int64_class->byval_arg;
3713 case MONO_TYPE_BOOLEAN:
3714 return &mono_defaults.byte_class->byval_arg;
3715 case MONO_TYPE_CHAR:
3716 return &mono_defaults.uint16_class->byval_arg;
3718 return &mono_defaults.int_class->byval_arg;
3719 case MONO_TYPE_VALUETYPE:
3720 if (t->data.klass->enumtype) {
3721 t = mono_class_enum_basetype (t->data.klass);
3731 * mono_marshal_get_runtime_invoke_sig:
3733 * Return a common signature used for sharing runtime invoke wrappers.
3735 static MonoMethodSignature*
3736 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3738 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3741 res->generic_param_count = 0;
3742 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3743 for (i = 0; i < res->param_count; ++i)
3744 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3750 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3752 /* Can't share wrappers which return a vtype since it needs to be boxed */
3753 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))
3756 return mono_metadata_signature_equal (sig1, sig2);
3764 * Emit the call to the wrapper method from a runtime invoke wrapper.
3767 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3768 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3770 gboolean virtual_, gboolean need_direct_wrapper)
3772 static MonoString *string_dummy = NULL;
3774 int *tmp_nullable_locals;
3775 gboolean void_ret = FALSE;
3776 gboolean string_ctor = method && method->string_ctor;
3778 /* to make it work with our special string constructors */
3779 if (!string_dummy) {
3780 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3781 string_dummy = mono_string_new_wrapper ("dummy");
3785 g_assert (sig->hasthis);
3786 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3791 if (mono_gc_is_moving ()) {
3792 mono_mb_emit_ptr (mb, &string_dummy);
3793 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3795 mono_mb_emit_ptr (mb, string_dummy);
3798 mono_mb_emit_ldarg (mb, 0);
3802 tmp_nullable_locals = g_new0 (int, sig->param_count);
3804 for (i = 0; i < sig->param_count; i++) {
3805 MonoType *t = sig->params [i];
3808 mono_mb_emit_ldarg (mb, 1);
3810 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3811 mono_mb_emit_byte (mb, CEE_ADD);
3815 mono_mb_emit_byte (mb, CEE_LDIND_I);
3816 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3817 * So to make this work we unbox it to a local variablee and push a reference to that.
3819 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3820 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3822 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3823 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3824 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3829 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3830 type = sig->params [i]->type;
3834 case MONO_TYPE_BOOLEAN:
3838 case MONO_TYPE_CHAR:
3847 mono_mb_emit_byte (mb, CEE_LDIND_I);
3848 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3850 case MONO_TYPE_STRING:
3851 case MONO_TYPE_CLASS:
3852 case MONO_TYPE_ARRAY:
3854 case MONO_TYPE_SZARRAY:
3855 case MONO_TYPE_OBJECT:
3856 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3858 case MONO_TYPE_GENERICINST:
3859 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3860 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3865 case MONO_TYPE_VALUETYPE:
3866 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3867 type = mono_class_enum_basetype (t->data.klass)->type;
3870 mono_mb_emit_byte (mb, CEE_LDIND_I);
3871 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3872 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3873 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3874 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3876 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3880 g_assert_not_reached ();
3885 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3886 } else if (need_direct_wrapper) {
3887 mono_mb_emit_op (mb, CEE_CALL, method);
3889 mono_mb_emit_ldarg (mb, 3);
3890 mono_mb_emit_calli (mb, callsig);
3893 if (sig->ret->byref) {
3895 g_assert_not_reached ();
3898 switch (sig->ret->type) {
3899 case MONO_TYPE_VOID:
3903 case MONO_TYPE_BOOLEAN:
3904 case MONO_TYPE_CHAR:
3917 case MONO_TYPE_VALUETYPE:
3918 case MONO_TYPE_TYPEDBYREF:
3919 case MONO_TYPE_GENERICINST:
3920 /* box value types */
3921 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3923 case MONO_TYPE_STRING:
3924 case MONO_TYPE_CLASS:
3925 case MONO_TYPE_ARRAY:
3926 case MONO_TYPE_SZARRAY:
3927 case MONO_TYPE_OBJECT:
3931 /* The result is an IntPtr */
3932 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3935 g_assert_not_reached ();
3939 mono_mb_emit_stloc (mb, loc_res);
3941 /* Convert back nullable-byref arguments */
3942 for (i = 0; i < sig->param_count; i++) {
3943 MonoType *t = sig->params [i];
3946 * Box the result and put it back into the array, the caller will have
3947 * to obtain it from there.
3949 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3950 mono_mb_emit_ldarg (mb, 1);
3951 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3952 mono_mb_emit_byte (mb, CEE_ADD);
3954 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3955 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3957 mono_mb_emit_byte (mb, CEE_STIND_REF);
3961 g_free (tmp_nullable_locals);
3965 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3966 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3967 gboolean virtual_, gboolean need_direct_wrapper)
3970 MonoExceptionClause *clause;
3971 int loc_res, loc_exc;
3973 /* The wrapper looks like this:
3979 * } catch (Exception e) {
3987 /* allocate local 0 (object) tmp */
3988 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3989 /* allocate local 1 (object) exc */
3990 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3992 /* *exc is assumed to be initialized to NULL by the caller */
3994 mono_mb_emit_byte (mb, CEE_LDARG_2);
3995 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4000 labels [1] = mono_mb_get_label (mb);
4001 emit_thread_force_interrupt_checkpoint (mb);
4002 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4004 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4006 /* Add a try clause around the call */
4007 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
4008 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4009 clause->data.catch_class = mono_defaults.exception_class;
4010 clause->try_offset = labels [1];
4011 clause->try_len = mono_mb_get_label (mb) - labels [1];
4013 clause->handler_offset = mono_mb_get_label (mb);
4016 mono_mb_emit_stloc (mb, loc_exc);
4017 mono_mb_emit_byte (mb, CEE_LDARG_2);
4018 mono_mb_emit_ldloc (mb, loc_exc);
4019 mono_mb_emit_byte (mb, CEE_STIND_REF);
4021 mono_mb_emit_branch (mb, CEE_LEAVE);
4023 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4025 mono_mb_set_clauses (mb, 1, clause);
4027 mono_mb_patch_branch (mb, labels [2]);
4028 mono_mb_emit_ldloc (mb, loc_res);
4029 mono_mb_emit_byte (mb, CEE_RET);
4034 mono_mb_patch_branch (mb, labels [0]);
4035 emit_thread_force_interrupt_checkpoint (mb);
4036 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4038 mono_mb_emit_ldloc (mb, 0);
4039 mono_mb_emit_byte (mb, CEE_RET);
4044 * generates IL code for the runtime invoke function
4045 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4047 * we also catch exceptions if exc != null
4048 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4049 * it means that the compiled code for METHOD does not have to be looked up
4050 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4051 * its METHOD argument.
4054 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4056 MonoMethodSignature *sig, *csig, *callsig;
4057 MonoMethodBuilder *mb;
4058 GHashTable *cache = NULL;
4059 MonoClass *target_klass;
4060 MonoMethod *res = NULL;
4061 static MonoMethodSignature *cctor_signature = NULL;
4062 static MonoMethodSignature *finalize_signature = NULL;
4064 const char *param_names [16];
4065 gboolean need_direct_wrapper = FALSE;
4070 if (!cctor_signature) {
4071 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4072 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4074 if (!finalize_signature) {
4075 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4076 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4077 finalize_signature->hasthis = 1;
4081 need_direct_wrapper = TRUE;
4084 * Use a separate cache indexed by methods to speed things up and to avoid the
4085 * boundless mempool growth caused by the signature_dup stuff below.
4088 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4090 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4092 res = mono_marshal_find_in_cache (cache, method);
4096 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4097 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4099 * Array Get/Set/Address methods. The JIT implements them using inline code
4100 * so we need to create an invoke wrapper which calls the method directly.
4102 need_direct_wrapper = TRUE;
4105 if (method->string_ctor) {
4106 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4108 callsig = add_string_ctor_signature (method);
4109 /* Can't share this as we push a string as this */
4110 need_direct_wrapper = TRUE;
4112 if (method_is_dynamic (method))
4113 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4115 callsig = mono_method_signature (method);
4118 sig = mono_method_signature (method);
4120 target_klass = get_wrapper_target_class (method->klass->image);
4122 /* Try to share wrappers for non-corlib methods with simple signatures */
4123 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4124 callsig = cctor_signature;
4125 target_klass = mono_defaults.object_class;
4126 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4127 callsig = finalize_signature;
4128 target_klass = mono_defaults.object_class;
4131 if (need_direct_wrapper) {
4132 /* Already searched at the start */
4134 MonoMethodSignature *tmp_sig;
4136 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4137 GHashTable **cache_table = NULL;
4139 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4140 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4142 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4144 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4145 (GCompareFunc)runtime_invoke_signature_equal);
4147 /* from mono_marshal_find_in_cache */
4148 mono_marshal_lock ();
4149 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4150 mono_marshal_unlock ();
4157 /* Make a copy of the signature from the image mempool */
4159 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4163 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4165 csig->ret = &mono_defaults.object_class->byval_arg;
4166 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4167 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4169 csig->params [0] = &mono_defaults.object_class->byval_arg;
4170 csig->params [1] = &mono_defaults.int_class->byval_arg;
4171 csig->params [2] = &mono_defaults.int_class->byval_arg;
4172 csig->params [3] = &mono_defaults.int_class->byval_arg;
4175 /* This is called from runtime code so it has to be cdecl */
4176 csig->call_convention = MONO_CALL_C;
4179 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4180 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4184 param_names [0] = "this";
4185 param_names [1] = "params";
4186 param_names [2] = "exc";
4187 param_names [3] = "method";
4188 mono_mb_set_param_names (mb, param_names);
4190 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4193 if (need_direct_wrapper) {
4195 mb->skip_visibility = 1;
4197 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4198 info->d.runtime_invoke.method = method;
4199 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4201 /* taken from mono_mb_create_and_cache */
4202 mono_marshal_lock ();
4203 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4204 mono_marshal_unlock ();
4206 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4207 info->d.runtime_invoke.sig = callsig;
4209 /* Somebody may have created it before us */
4212 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4214 mono_marshal_lock ();
4215 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4217 GHashTable *direct_cache;
4219 g_hash_table_insert (cache, callsig, res);
4220 /* Can't insert it into wrapper_hash since the key is a signature */
4221 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4223 g_hash_table_insert (direct_cache, method, res);
4225 mono_free_method (newm);
4227 mono_marshal_unlock ();
4230 /* end mono_mb_create_and_cache */
4239 * mono_marshal_get_runtime_invoke_dynamic:
4241 * Return a method which can be used to invoke managed methods from native code
4243 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4244 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4245 * ARGS should point to an architecture specific structure containing
4246 * the arguments and space for the return value.
4247 * The other arguments are the same as for runtime_invoke (), except that
4248 * ARGS should contain the this argument too.
4249 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4250 * is only one copy of it, which is useful in full-aot.
4253 mono_marshal_get_runtime_invoke_dynamic (void)
4255 static MonoMethod *method;
4256 MonoMethodSignature *csig;
4257 MonoExceptionClause *clause;
4258 MonoMethodBuilder *mb;
4266 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4268 csig->ret = &mono_defaults.void_class->byval_arg;
4269 csig->params [0] = &mono_defaults.int_class->byval_arg;
4270 csig->params [1] = &mono_defaults.int_class->byval_arg;
4271 csig->params [2] = &mono_defaults.int_class->byval_arg;
4272 csig->params [3] = &mono_defaults.int_class->byval_arg;
4274 name = g_strdup ("runtime_invoke_dynamic");
4275 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4279 /* allocate local 0 (object) tmp */
4280 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4281 /* allocate local 1 (object) exc */
4282 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4284 /* cond set *exc to null */
4285 mono_mb_emit_byte (mb, CEE_LDARG_1);
4286 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4287 mono_mb_emit_byte (mb, 3);
4288 mono_mb_emit_byte (mb, CEE_LDARG_1);
4289 mono_mb_emit_byte (mb, CEE_LDNULL);
4290 mono_mb_emit_byte (mb, CEE_STIND_REF);
4292 emit_thread_force_interrupt_checkpoint (mb);
4294 mono_mb_emit_byte (mb, CEE_LDARG_0);
4295 mono_mb_emit_byte (mb, CEE_LDARG_2);
4296 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4297 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4299 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4301 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4302 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4303 clause->try_len = mono_mb_get_label (mb);
4306 clause->data.filter_offset = mono_mb_get_label (mb);
4308 mono_mb_emit_byte (mb, CEE_POP);
4309 mono_mb_emit_byte (mb, CEE_LDARG_1);
4310 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4311 mono_mb_emit_byte (mb, CEE_PREFIX1);
4312 mono_mb_emit_byte (mb, CEE_CGT_UN);
4313 mono_mb_emit_byte (mb, CEE_PREFIX1);
4314 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4316 clause->handler_offset = mono_mb_get_label (mb);
4319 /* store exception */
4320 mono_mb_emit_stloc (mb, 1);
4322 mono_mb_emit_byte (mb, CEE_LDARG_1);
4323 mono_mb_emit_ldloc (mb, 1);
4324 mono_mb_emit_byte (mb, CEE_STIND_REF);
4326 mono_mb_emit_byte (mb, CEE_LDNULL);
4327 mono_mb_emit_stloc (mb, 0);
4329 /* Check for the abort exception */
4330 mono_mb_emit_ldloc (mb, 1);
4331 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4332 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4334 /* Delay the abort exception */
4335 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4337 mono_mb_patch_short_branch (mb, posna);
4338 mono_mb_emit_branch (mb, CEE_LEAVE);
4340 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4342 mono_mb_set_clauses (mb, 1, clause);
4345 mono_mb_patch_branch (mb, pos);
4346 //mono_mb_emit_ldloc (mb, 0);
4347 mono_mb_emit_byte (mb, CEE_RET);
4348 #endif /* DISABLE_JIT */
4350 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4352 mono_marshal_lock ();
4353 /* double-checked locking */
4355 method = mono_mb_create (mb, csig, 16, info);
4357 mono_marshal_unlock ();
4365 * mono_marshal_get_runtime_invoke_for_sig:
4367 * Return a runtime invoke wrapper for a given signature.
4370 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4372 MonoMethodSignature *csig, *callsig;
4373 MonoMethodBuilder *mb;
4375 GHashTable *cache = NULL;
4376 GHashTable **cache_table = NULL;
4377 MonoMethod *res = NULL;
4379 const char *param_names [16];
4382 /* A simplified version of mono_marshal_get_runtime_invoke */
4384 image = mono_defaults.corlib;
4386 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4388 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4390 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4391 (GCompareFunc)runtime_invoke_signature_equal);
4393 /* from mono_marshal_find_in_cache */
4394 mono_marshal_lock ();
4395 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4396 mono_marshal_unlock ();
4403 /* Make a copy of the signature from the image mempool */
4404 callsig = mono_metadata_signature_dup_full (image, callsig);
4406 csig = mono_metadata_signature_alloc (image, 4);
4407 csig->ret = &mono_defaults.object_class->byval_arg;
4408 csig->params [0] = &mono_defaults.object_class->byval_arg;
4409 csig->params [1] = &mono_defaults.int_class->byval_arg;
4410 csig->params [2] = &mono_defaults.int_class->byval_arg;
4411 csig->params [3] = &mono_defaults.int_class->byval_arg;
4414 /* This is called from runtime code so it has to be cdecl */
4415 csig->call_convention = MONO_CALL_C;
4418 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4419 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4423 param_names [0] = "this";
4424 param_names [1] = "params";
4425 param_names [2] = "exc";
4426 param_names [3] = "method";
4427 mono_mb_set_param_names (mb, param_names);
4429 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4432 /* taken from mono_mb_create_and_cache */
4433 mono_marshal_lock ();
4434 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4435 mono_marshal_unlock ();
4437 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4438 info->d.runtime_invoke.sig = callsig;
4440 /* Somebody may have created it before us */
4443 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4445 mono_marshal_lock ();
4446 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4449 g_hash_table_insert (cache, callsig, res);
4451 mono_free_method (newm);
4453 mono_marshal_unlock ();
4456 /* end mono_mb_create_and_cache */
4465 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4467 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4468 klass->name_space, klass->name);
4470 mono_mb_emit_exception_marshal_directive (mb, msg);
4475 * generates IL code for the icall wrapper (the generated method
4476 * calls the unmanaged code in func)
4479 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4481 MonoMethodSignature *csig, *csig2;
4482 MonoMethodBuilder *mb;
4487 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4488 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4491 g_assert (sig->pinvoke);
4493 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4495 mb->method->save_lmf = 1;
4497 /* Add an explicit this argument */
4499 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4501 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4505 mono_mb_emit_byte (mb, CEE_LDARG_0);
4507 for (i = 0; i < sig->param_count; i++)
4508 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4510 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4511 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4512 mono_mb_emit_calli (mb, csig2);
4513 if (check_exceptions)
4514 emit_thread_interrupt_checkpoint (mb);
4515 mono_mb_emit_byte (mb, CEE_RET);
4518 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4520 if (csig->call_convention == MONO_CALL_VARARG)
4521 csig->call_convention = 0;
4523 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4524 info->d.icall.func = (gpointer)func;
4525 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4532 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4533 MonoMarshalSpec *spec,
4534 int conv_arg, MonoType **conv_arg_type,
4535 MarshalAction action)
4538 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4539 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4545 static MonoClass *ICustomMarshaler = NULL;
4546 static MonoMethod *cleanup_native, *cleanup_managed;
4547 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4548 MonoMethod *get_instance = NULL;
4549 MonoMethodBuilder *mb = m->mb;
4550 char *exception_msg = NULL;
4554 if (!ICustomMarshaler) {
4555 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4557 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4558 goto handle_exception;
4561 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4562 g_assert (cleanup_native);
4563 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4564 g_assert (cleanup_managed);
4565 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4566 g_assert (marshal_managed_to_native);
4567 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4568 g_assert (marshal_native_to_managed);
4570 mono_memory_barrier ();
4571 ICustomMarshaler = klass;
4574 if (spec->data.custom_data.image)
4575 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4577 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4578 g_assert (mtype != NULL);
4579 mono_error_assert_ok (&error);
4580 mklass = mono_class_from_mono_type (mtype);
4581 g_assert (mklass != NULL);
4583 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4584 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4586 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4588 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4589 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4590 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4591 (get_sig->params [0]->type != MONO_TYPE_STRING))
4592 get_instance = NULL;
4596 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);
4599 /* Throw exception and emit compensation code if neccesary */
4600 if (exception_msg) {
4602 case MARSHAL_ACTION_CONV_IN:
4603 case MARSHAL_ACTION_CONV_RESULT:
4604 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4605 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4606 mono_mb_emit_byte (mb, CEE_POP);
4608 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4609 g_free (exception_msg);
4612 case MARSHAL_ACTION_PUSH:
4613 mono_mb_emit_byte (mb, CEE_LDNULL);
4621 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4622 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4625 case MARSHAL_ACTION_CONV_IN:
4627 case MONO_TYPE_CLASS:
4628 case MONO_TYPE_OBJECT:
4629 case MONO_TYPE_STRING:
4630 case MONO_TYPE_ARRAY:
4631 case MONO_TYPE_SZARRAY:
4632 case MONO_TYPE_VALUETYPE:
4636 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4637 g_assert_not_reached ();
4641 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4643 mono_mb_emit_byte (mb, CEE_LDNULL);
4644 mono_mb_emit_stloc (mb, conv_arg);
4646 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4649 /* Minic MS.NET behavior */
4650 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4653 /* Check for null */
4654 mono_mb_emit_ldarg (mb, argnum);
4656 mono_mb_emit_byte (mb, CEE_LDIND_I);
4657 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
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_ldarg (mb, argnum);
4665 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4667 if (t->type == MONO_TYPE_VALUETYPE) {
4669 * Since we can't determine the type of the argument, we
4670 * will assume the unmanaged function takes a pointer.
4672 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4674 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4677 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4678 mono_mb_emit_stloc (mb, conv_arg);
4680 mono_mb_patch_branch (mb, pos2);
4683 case MARSHAL_ACTION_CONV_OUT:
4684 /* Check for null */
4685 mono_mb_emit_ldloc (mb, conv_arg);
4686 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4689 mono_mb_emit_ldarg (mb, argnum);
4691 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4693 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4695 mono_mb_emit_ldloc (mb, conv_arg);
4696 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4697 mono_mb_emit_byte (mb, CEE_STIND_REF);
4698 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4699 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4701 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4703 mono_mb_emit_ldloc (mb, conv_arg);
4704 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4706 /* We have nowhere to store the result */
4707 mono_mb_emit_byte (mb, CEE_POP);
4710 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4712 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4714 mono_mb_emit_ldloc (mb, conv_arg);
4716 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4718 mono_mb_patch_branch (mb, pos2);
4721 case MARSHAL_ACTION_PUSH:
4723 mono_mb_emit_ldloc_addr (mb, conv_arg);
4725 mono_mb_emit_ldloc (mb, conv_arg);
4728 case MARSHAL_ACTION_CONV_RESULT:
4729 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4731 mono_mb_emit_stloc (mb, 3);
4733 mono_mb_emit_ldloc (mb, 3);
4734 mono_mb_emit_stloc (mb, loc1);
4736 /* Check for null */
4737 mono_mb_emit_ldloc (mb, 3);
4738 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4740 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4742 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4743 mono_mb_emit_byte (mb, CEE_DUP);
4745 mono_mb_emit_ldloc (mb, 3);
4746 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4747 mono_mb_emit_stloc (mb, 3);
4749 mono_mb_emit_ldloc (mb, loc1);
4750 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4752 mono_mb_patch_branch (mb, pos2);
4755 case MARSHAL_ACTION_MANAGED_CONV_IN:
4756 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4758 mono_mb_emit_byte (mb, CEE_LDNULL);
4759 mono_mb_emit_stloc (mb, conv_arg);
4761 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4764 /* Check for null */
4765 mono_mb_emit_ldarg (mb, argnum);
4767 mono_mb_emit_byte (mb, CEE_LDIND_I);
4768 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4770 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4771 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4773 mono_mb_emit_ldarg (mb, argnum);
4775 mono_mb_emit_byte (mb, CEE_LDIND_I);
4777 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4778 mono_mb_emit_stloc (mb, conv_arg);
4780 mono_mb_patch_branch (mb, pos2);
4783 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4784 g_assert (!t->byref);
4786 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4788 mono_mb_emit_stloc (mb, 3);
4790 mono_mb_emit_ldloc (mb, 3);
4791 mono_mb_emit_stloc (mb, loc1);
4793 /* Check for null */
4794 mono_mb_emit_ldloc (mb, 3);
4795 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4797 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4798 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4799 mono_mb_emit_byte (mb, CEE_DUP);
4801 mono_mb_emit_ldloc (mb, 3);
4802 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4803 mono_mb_emit_stloc (mb, 3);
4805 mono_mb_emit_ldloc (mb, loc1);
4806 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4808 mono_mb_patch_branch (mb, pos2);
4811 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4813 /* Check for null */
4814 mono_mb_emit_ldloc (mb, conv_arg);
4815 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4818 mono_mb_emit_ldarg (mb, argnum);
4820 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4822 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4824 mono_mb_emit_ldloc (mb, conv_arg);
4825 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4826 mono_mb_emit_byte (mb, CEE_STIND_I);
4829 /* Call CleanUpManagedData */
4830 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4832 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4834 mono_mb_emit_ldloc (mb, conv_arg);
4835 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4837 mono_mb_patch_branch (mb, pos2);
4841 g_assert_not_reached ();
4849 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4850 MonoMarshalSpec *spec,
4851 int conv_arg, MonoType **conv_arg_type,
4852 MarshalAction action)
4855 MonoMethodBuilder *mb = m->mb;
4858 case MARSHAL_ACTION_CONV_IN: {
4859 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4861 g_assert (t->type == MONO_TYPE_OBJECT);
4862 g_assert (!t->byref);
4864 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4865 mono_mb_emit_ldarg (mb, argnum);
4866 mono_mb_emit_icon (mb, encoding);
4867 mono_mb_emit_icon (mb, t->attrs);
4868 mono_mb_emit_icall (mb, mono_marshal_asany);
4869 mono_mb_emit_stloc (mb, conv_arg);
4873 case MARSHAL_ACTION_PUSH:
4874 mono_mb_emit_ldloc (mb, conv_arg);
4877 case MARSHAL_ACTION_CONV_OUT: {
4878 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4880 mono_mb_emit_ldarg (mb, argnum);
4881 mono_mb_emit_ldloc (mb, conv_arg);
4882 mono_mb_emit_icon (mb, encoding);
4883 mono_mb_emit_icon (mb, t->attrs);
4884 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4889 g_assert_not_reached ();
4896 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4897 MonoMarshalSpec *spec,
4898 int conv_arg, MonoType **conv_arg_type,
4899 MarshalAction action)
4902 MonoMethodBuilder *mb = m->mb;
4903 MonoClass *klass, *date_time_class;
4906 klass = mono_class_from_mono_type (t);
4908 date_time_class = mono_class_get_date_time_class ();
4911 case MARSHAL_ACTION_CONV_IN:
4912 if (klass == date_time_class) {
4913 /* Convert it to an OLE DATE type */
4914 static MonoMethod *to_oadate;
4917 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4918 g_assert (to_oadate);
4920 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4923 mono_mb_emit_ldarg (mb, argnum);
4924 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4927 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4929 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4931 mono_mb_emit_ldarg_addr (mb, argnum);
4932 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4933 mono_mb_emit_stloc (mb, conv_arg);
4937 mono_mb_patch_branch (mb, pos);
4941 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4942 klass->blittable || klass->enumtype)
4945 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4947 /* store the address of the source into local variable 0 */
4949 mono_mb_emit_ldarg (mb, argnum);
4951 mono_mb_emit_ldarg_addr (mb, argnum);
4953 mono_mb_emit_stloc (mb, 0);
4955 /* allocate space for the native struct and
4956 * store the address into local variable 1 (dest) */
4957 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4958 mono_mb_emit_byte (mb, CEE_PREFIX1);
4959 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4960 mono_mb_emit_stloc (mb, conv_arg);
4963 mono_mb_emit_ldloc (mb, 0);
4964 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4967 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4969 mono_mb_emit_ldloc (mb, conv_arg);
4970 mono_mb_emit_stloc (mb, 1);
4972 /* emit valuetype conversion code */
4973 emit_struct_conv (mb, klass, FALSE);
4977 mono_mb_patch_branch (mb, pos);
4980 case MARSHAL_ACTION_PUSH:
4981 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4983 g_assert (!t->byref);
4985 /* Have to change the signature since the vtype is passed byref */
4986 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4988 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4989 klass->blittable || klass->enumtype)
4990 mono_mb_emit_ldarg_addr (mb, argnum);
4992 mono_mb_emit_ldloc (mb, conv_arg);
4996 if (klass == date_time_class) {
4998 mono_mb_emit_ldloc_addr (mb, conv_arg);
5000 mono_mb_emit_ldloc (mb, conv_arg);
5004 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5005 klass->blittable || klass->enumtype) {
5006 mono_mb_emit_ldarg (mb, argnum);
5009 mono_mb_emit_ldloc (mb, conv_arg);
5011 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5012 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5016 case MARSHAL_ACTION_CONV_OUT:
5017 if (klass == date_time_class) {
5018 /* Convert from an OLE DATE type */
5019 static MonoMethod *from_oadate;
5024 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5026 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5027 g_assert (from_oadate);
5029 mono_mb_emit_ldarg (mb, argnum);
5030 mono_mb_emit_ldloc (mb, conv_arg);
5031 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5032 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5037 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5038 klass->blittable || klass->enumtype)
5042 /* dst = argument */
5043 mono_mb_emit_ldarg (mb, argnum);
5044 mono_mb_emit_stloc (mb, 1);
5046 mono_mb_emit_ldloc (mb, 1);
5047 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5049 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5050 /* src = tmp_locals [i] */
5051 mono_mb_emit_ldloc (mb, conv_arg);
5052 mono_mb_emit_stloc (mb, 0);
5054 /* emit valuetype conversion code */
5055 emit_struct_conv (mb, klass, TRUE);
5059 emit_struct_free (mb, klass, conv_arg);
5062 mono_mb_patch_branch (mb, pos);
5065 case MARSHAL_ACTION_CONV_RESULT:
5066 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5068 mono_mb_emit_stloc (mb, 3);
5072 /* load pointer to returned value type */
5073 g_assert (m->vtaddr_var);
5074 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5075 /* store the address of the source into local variable 0 */
5076 mono_mb_emit_stloc (mb, 0);
5078 mono_mb_emit_ldloc_addr (mb, 3);
5079 mono_mb_emit_stloc (mb, 1);
5081 /* emit valuetype conversion code */
5082 emit_struct_conv (mb, klass, TRUE);
5085 case MARSHAL_ACTION_MANAGED_CONV_IN:
5086 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5087 klass->blittable || klass->enumtype) {
5092 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5094 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5098 mono_mb_emit_ldarg (mb, argnum);
5100 mono_mb_emit_ldarg_addr (mb, argnum);
5101 mono_mb_emit_stloc (mb, 0);
5104 mono_mb_emit_ldloc (mb, 0);
5105 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5108 mono_mb_emit_ldloc_addr (mb, conv_arg);
5109 mono_mb_emit_stloc (mb, 1);
5111 /* emit valuetype conversion code */
5112 emit_struct_conv (mb, klass, TRUE);
5115 mono_mb_patch_branch (mb, pos);
5118 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5119 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5120 klass->blittable || klass->enumtype) {
5124 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5127 /* Check for null */
5128 mono_mb_emit_ldarg (mb, argnum);
5129 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5132 mono_mb_emit_ldloc_addr (mb, conv_arg);
5133 mono_mb_emit_stloc (mb, 0);
5136 mono_mb_emit_ldarg (mb, argnum);
5137 mono_mb_emit_stloc (mb, 1);
5139 /* emit valuetype conversion code */
5140 emit_struct_conv (mb, klass, FALSE);
5142 mono_mb_patch_branch (mb, pos2);
5145 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5146 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5147 klass->blittable || klass->enumtype) {
5148 mono_mb_emit_stloc (mb, 3);
5153 /* load pointer to returned value type */
5154 g_assert (m->vtaddr_var);
5155 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5157 /* store the address of the source into local variable 0 */
5158 mono_mb_emit_stloc (mb, 0);
5159 /* allocate space for the native struct and
5160 * store the address into dst_ptr */
5161 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5162 m->retobj_class = klass;
5163 g_assert (m->retobj_var);
5164 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5165 mono_mb_emit_byte (mb, CEE_CONV_I);
5166 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5167 mono_mb_emit_stloc (mb, 1);
5168 mono_mb_emit_ldloc (mb, 1);
5169 mono_mb_emit_stloc (mb, m->retobj_var);
5171 /* emit valuetype conversion code */
5172 emit_struct_conv (mb, klass, FALSE);
5176 g_assert_not_reached ();
5183 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5184 MonoMarshalSpec *spec,
5185 int conv_arg, MonoType **conv_arg_type,
5186 MarshalAction action)
5190 case MARSHAL_ACTION_CONV_IN:
5191 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5193 case MARSHAL_ACTION_MANAGED_CONV_IN:
5194 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5198 MonoMethodBuilder *mb = m->mb;
5199 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5200 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5204 case MARSHAL_ACTION_CONV_IN:
5205 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5206 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5209 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5212 mono_mb_emit_ldarg (mb, argnum);
5213 mono_mb_emit_byte (mb, CEE_LDIND_I);
5215 mono_mb_emit_ldarg (mb, argnum);
5218 if (conv == MONO_MARSHAL_CONV_INVALID) {
5219 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5220 mono_mb_emit_exception_marshal_directive (mb, msg);
5222 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5224 mono_mb_emit_stloc (mb, conv_arg);
5228 case MARSHAL_ACTION_CONV_OUT:
5229 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5230 if (conv == MONO_MARSHAL_CONV_INVALID) {
5231 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5232 mono_mb_emit_exception_marshal_directive (mb, msg);
5236 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5237 static MonoMethod *m;
5240 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5245 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5246 mono_mb_emit_exception_marshal_directive (mb, msg);
5251 * Have to allocate a new string with the same length as the original, and
5252 * copy the contents of the buffer pointed to by CONV_ARG into it.
5254 g_assert (t->byref);
5255 mono_mb_emit_ldarg (mb, argnum);
5256 mono_mb_emit_ldloc (mb, conv_arg);
5257 mono_mb_emit_ldarg (mb, argnum);
5258 mono_mb_emit_byte (mb, CEE_LDIND_I);
5259 mono_mb_emit_managed_call (mb, m, NULL);
5260 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5261 mono_mb_emit_byte (mb, CEE_STIND_REF);
5262 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5264 mono_mb_emit_ldarg (mb, argnum);
5265 mono_mb_emit_ldloc (mb, conv_arg);
5266 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5267 mono_mb_emit_byte (mb, stind_op);
5272 mono_mb_emit_ldloc (mb, conv_arg);
5273 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5274 mono_mb_emit_icall (mb, mono_free_bstr);
5276 mono_mb_emit_icall (mb, mono_marshal_free);
5280 case MARSHAL_ACTION_PUSH:
5281 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5282 mono_mb_emit_ldloc_addr (mb, conv_arg);
5284 mono_mb_emit_ldloc (mb, conv_arg);
5287 case MARSHAL_ACTION_CONV_RESULT:
5288 mono_mb_emit_stloc (mb, 0);
5290 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5291 if (conv == MONO_MARSHAL_CONV_INVALID) {
5292 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5293 mono_mb_emit_exception_marshal_directive (mb, msg);
5297 mono_mb_emit_ldloc (mb, 0);
5298 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5299 mono_mb_emit_stloc (mb, 3);
5301 /* free the string */
5302 mono_mb_emit_ldloc (mb, 0);
5303 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5304 mono_mb_emit_icall (mb, mono_free_bstr);
5306 mono_mb_emit_icall (mb, mono_marshal_free);
5309 case MARSHAL_ACTION_MANAGED_CONV_IN:
5310 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5312 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5315 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5319 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5320 if (conv == MONO_MARSHAL_CONV_INVALID) {
5321 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5322 mono_mb_emit_exception_marshal_directive (mb, msg);
5326 mono_mb_emit_ldarg (mb, argnum);
5328 mono_mb_emit_byte (mb, CEE_LDIND_I);
5329 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5330 mono_mb_emit_stloc (mb, conv_arg);
5333 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5337 mono_mb_emit_ldarg (mb, argnum);
5338 mono_mb_emit_ldloc (mb, conv_arg);
5339 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5340 mono_mb_emit_byte (mb, stind_op);
5345 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5346 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5347 /* We need to make a copy so the caller is able to free it */
5348 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5350 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5351 mono_mb_emit_stloc (mb, 3);
5355 g_assert_not_reached ();
5363 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5364 MonoMarshalSpec *spec, int conv_arg,
5365 MonoType **conv_arg_type, MarshalAction action)
5368 if (action == MARSHAL_ACTION_CONV_IN)
5369 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5371 MonoMethodBuilder *mb = m->mb;
5374 case MARSHAL_ACTION_CONV_IN: {
5375 MonoType *intptr_type;
5376 int dar_release_slot, pos;
5378 intptr_type = &mono_defaults.int_class->byval_arg;
5379 conv_arg = mono_mb_add_local (mb, intptr_type);
5380 *conv_arg_type = intptr_type;
5382 if (!sh_dangerous_add_ref)
5383 init_safe_handle ();
5385 mono_mb_emit_ldarg (mb, argnum);
5386 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5387 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5389 mono_mb_patch_branch (mb, pos);
5392 * My tests in show that ref SafeHandles are not really
5393 * passed as ref objects. Instead a NULL is passed as the
5396 mono_mb_emit_icon (mb, 0);
5397 mono_mb_emit_stloc (mb, conv_arg);
5401 /* Create local to hold the ref parameter to DangerousAddRef */
5402 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5404 /* set release = false; */
5405 mono_mb_emit_icon (mb, 0);
5406 mono_mb_emit_stloc (mb, dar_release_slot);
5408 /* safehandle.DangerousAddRef (ref release) */
5409 mono_mb_emit_ldarg (mb, argnum);
5410 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5411 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5413 /* Pull the handle field from SafeHandle */
5414 mono_mb_emit_ldarg (mb, argnum);
5415 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5416 mono_mb_emit_byte (mb, CEE_LDIND_I);
5417 mono_mb_emit_stloc (mb, conv_arg);
5422 case MARSHAL_ACTION_PUSH:
5424 mono_mb_emit_ldloc_addr (mb, conv_arg);
5426 mono_mb_emit_ldloc (mb, conv_arg);
5429 case MARSHAL_ACTION_CONV_OUT: {
5430 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5431 int dar_release_slot = conv_arg + 1;
5434 if (!sh_dangerous_release)
5435 init_safe_handle ();
5441 * My tests indicate that ref SafeHandles parameters are not actually
5442 * passed by ref, but instead a new Handle is created regardless of
5443 * whether a change happens in the unmanaged side.
5445 * Also, the Handle is created before calling into unmanaged code,
5446 * but we do not support that mechanism (getting to the original
5447 * handle) and it makes no difference where we create this
5449 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5451 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5454 /* refval = new SafeHandleDerived ()*/
5455 mono_mb_emit_ldarg (mb, argnum);
5456 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5457 mono_mb_emit_byte (mb, CEE_STIND_REF);
5459 /* refval.handle = returned_handle */
5460 mono_mb_emit_ldarg (mb, argnum);
5461 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5462 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5463 mono_mb_emit_ldloc (mb, conv_arg);
5464 mono_mb_emit_byte (mb, CEE_STIND_I);
5466 mono_mb_emit_ldloc (mb, dar_release_slot);
5467 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5468 mono_mb_emit_ldarg (mb, argnum);
5469 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5470 mono_mb_patch_branch (mb, label_next);
5475 case MARSHAL_ACTION_CONV_RESULT: {
5476 MonoMethod *ctor = NULL;
5477 int intptr_handle_slot;
5479 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5480 mono_mb_emit_byte (mb, CEE_POP);
5481 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5485 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5487 mono_mb_emit_byte (mb, CEE_POP);
5488 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5491 /* Store the IntPtr results into a local */
5492 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5493 mono_mb_emit_stloc (mb, intptr_handle_slot);
5495 /* Create return value */
5496 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5497 mono_mb_emit_stloc (mb, 3);
5499 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5500 mono_mb_emit_ldloc (mb, 3);
5501 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5502 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5503 mono_mb_emit_byte (mb, CEE_STIND_I);
5507 case MARSHAL_ACTION_MANAGED_CONV_IN:
5508 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5511 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5512 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5515 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5516 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5519 printf ("Unhandled case for MarshalAction: %d\n", action);
5527 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5528 MonoMarshalSpec *spec, int conv_arg,
5529 MonoType **conv_arg_type, MarshalAction action)
5532 if (action == MARSHAL_ACTION_CONV_IN)
5533 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5535 MonoMethodBuilder *mb = m->mb;
5538 case MARSHAL_ACTION_CONV_IN: {
5539 MonoType *intptr_type;
5541 intptr_type = &mono_defaults.int_class->byval_arg;
5542 conv_arg = mono_mb_add_local (mb, intptr_type);
5543 *conv_arg_type = intptr_type;
5546 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5547 mono_mb_emit_exception_marshal_directive (mb, msg);
5550 mono_mb_emit_ldarg_addr (mb, argnum);
5551 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5552 mono_mb_emit_byte (mb, CEE_ADD);
5553 mono_mb_emit_byte (mb, CEE_LDIND_I);
5554 mono_mb_emit_stloc (mb, conv_arg);
5558 case MARSHAL_ACTION_PUSH:
5559 mono_mb_emit_ldloc (mb, conv_arg);
5562 case MARSHAL_ACTION_CONV_OUT: {
5563 /* no resource release required */
5567 case MARSHAL_ACTION_CONV_RESULT: {
5568 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5569 mono_mb_emit_exception_marshal_directive (mb, msg);
5573 case MARSHAL_ACTION_MANAGED_CONV_IN:
5574 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5577 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5578 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5581 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5582 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5585 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5593 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5594 MonoMarshalSpec *spec,
5595 int conv_arg, MonoType **conv_arg_type,
5596 MarshalAction action)
5599 if (action == MARSHAL_ACTION_CONV_IN)
5600 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5602 MonoMethodBuilder *mb = m->mb;
5603 MonoClass *klass = mono_class_from_mono_type (t);
5607 case MARSHAL_ACTION_CONV_IN:
5608 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5609 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5611 m->orig_conv_args [argnum] = 0;
5613 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5614 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5615 mono_mb_emit_exception_marshal_directive (mb, msg);
5619 if (klass->delegate) {
5621 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5622 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5623 mono_mb_emit_exception_marshal_directive (mb, msg);
5625 mono_mb_emit_byte (mb, CEE_LDNULL);
5626 mono_mb_emit_stloc (mb, conv_arg);
5628 mono_mb_emit_ldarg (mb, argnum);
5629 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5630 mono_mb_emit_stloc (mb, conv_arg);
5632 } else if (klass == mono_defaults.stringbuilder_class) {
5633 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5634 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5638 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5639 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5640 mono_mb_emit_exception_marshal_directive (mb, msg);
5646 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5649 if (conv == MONO_MARSHAL_CONV_INVALID) {
5650 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5651 mono_mb_emit_exception_marshal_directive (mb, msg);
5655 mono_mb_emit_ldarg (mb, argnum);
5657 mono_mb_emit_byte (mb, CEE_LDIND_I);
5659 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5660 mono_mb_emit_stloc (mb, conv_arg);
5661 } else if (klass->blittable) {
5662 mono_mb_emit_byte (mb, CEE_LDNULL);
5663 mono_mb_emit_stloc (mb, conv_arg);
5665 mono_mb_emit_ldarg (mb, argnum);
5666 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5668 mono_mb_emit_ldarg (mb, argnum);
5669 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5670 mono_mb_emit_stloc (mb, conv_arg);
5672 mono_mb_patch_branch (mb, pos);
5675 mono_mb_emit_byte (mb, CEE_LDNULL);
5676 mono_mb_emit_stloc (mb, conv_arg);
5679 /* we dont need any conversions for out parameters */
5680 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5683 mono_mb_emit_ldarg (mb, argnum);
5684 mono_mb_emit_byte (mb, CEE_LDIND_I);
5687 mono_mb_emit_ldarg (mb, argnum);
5688 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5689 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5692 /* store the address of the source into local variable 0 */
5693 mono_mb_emit_stloc (mb, 0);
5694 mono_mb_emit_ldloc (mb, 0);
5695 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5697 /* allocate space for the native struct and store the address */
5698 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5699 mono_mb_emit_byte (mb, CEE_PREFIX1);
5700 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5701 mono_mb_emit_stloc (mb, conv_arg);
5704 /* Need to store the original buffer so we can free it later */
5705 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5706 mono_mb_emit_ldloc (mb, conv_arg);
5707 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5710 /* set the src_ptr */
5711 mono_mb_emit_ldloc (mb, 0);
5712 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5713 mono_mb_emit_stloc (mb, 0);
5716 mono_mb_emit_ldloc (mb, conv_arg);
5717 mono_mb_emit_stloc (mb, 1);
5719 /* emit valuetype conversion code */
5720 emit_struct_conv (mb, klass, FALSE);
5722 mono_mb_patch_branch (mb, pos);
5726 case MARSHAL_ACTION_CONV_OUT:
5727 if (klass == mono_defaults.stringbuilder_class) {
5729 MonoMarshalNative encoding;
5730 MonoMarshalConv conv;
5732 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5733 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5735 g_assert (encoding != -1);
5738 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5742 mono_mb_emit_ldarg (mb, argnum);
5743 mono_mb_emit_ldloc (mb, conv_arg);
5746 case MONO_NATIVE_LPWSTR:
5747 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5749 case MONO_NATIVE_LPSTR:
5750 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5752 case MONO_NATIVE_UTF8STR:
5753 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5756 g_assert_not_reached ();
5759 mono_mb_emit_byte (mb, CEE_STIND_REF);
5761 mono_mb_emit_ldarg (mb, argnum);
5762 mono_mb_emit_ldloc (mb, conv_arg);
5764 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5768 mono_mb_emit_ldloc (mb, conv_arg);
5769 mono_mb_emit_icall (mb, mono_marshal_free);
5774 if (klass->delegate) {
5776 mono_mb_emit_ldarg (mb, argnum);
5777 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5778 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5779 mono_mb_emit_ldloc (mb, conv_arg);
5780 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5781 mono_mb_emit_byte (mb, CEE_STIND_REF);
5786 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5787 /* allocate a new object */
5788 mono_mb_emit_ldarg (mb, argnum);
5789 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5790 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5791 mono_mb_emit_byte (mb, CEE_STIND_REF);
5794 /* dst = *argument */
5795 mono_mb_emit_ldarg (mb, argnum);
5798 mono_mb_emit_byte (mb, CEE_LDIND_I);
5800 mono_mb_emit_stloc (mb, 1);
5802 mono_mb_emit_ldloc (mb, 1);
5803 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5805 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5806 mono_mb_emit_ldloc (mb, 1);
5807 mono_mb_emit_icon (mb, sizeof (MonoObject));
5808 mono_mb_emit_byte (mb, CEE_ADD);
5809 mono_mb_emit_stloc (mb, 1);
5811 /* src = tmp_locals [i] */
5812 mono_mb_emit_ldloc (mb, conv_arg);
5813 mono_mb_emit_stloc (mb, 0);
5815 /* emit valuetype conversion code */
5816 emit_struct_conv (mb, klass, TRUE);
5818 /* Free the structure returned by the native code */
5819 emit_struct_free (mb, klass, conv_arg);
5821 if (m->orig_conv_args [argnum]) {
5823 * If the native function changed the pointer, then free
5824 * the original structure plus the new pointer.
5826 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5827 mono_mb_emit_ldloc (mb, conv_arg);
5828 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5830 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5831 g_assert (m->orig_conv_args [argnum]);
5833 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5836 mono_mb_emit_ldloc (mb, conv_arg);
5837 mono_mb_emit_icall (mb, mono_marshal_free);
5839 mono_mb_patch_branch (mb, pos2);
5843 /* Free the original structure passed to native code */
5844 emit_struct_free (mb, klass, conv_arg);
5846 mono_mb_patch_branch (mb, pos);
5849 case MARSHAL_ACTION_PUSH:
5851 mono_mb_emit_ldloc_addr (mb, conv_arg);
5853 mono_mb_emit_ldloc (mb, conv_arg);
5856 case MARSHAL_ACTION_CONV_RESULT:
5857 if (klass->delegate) {
5858 g_assert (!t->byref);
5859 mono_mb_emit_stloc (mb, 0);
5860 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5861 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5862 mono_mb_emit_ldloc (mb, 0);
5863 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5864 mono_mb_emit_stloc (mb, 3);
5865 } else if (klass == mono_defaults.stringbuilder_class){
5869 mono_mb_emit_stloc (mb, 0);
5871 /* Make a copy since emit_conv modifies local 0 */
5872 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5873 mono_mb_emit_ldloc (mb, 0);
5874 mono_mb_emit_stloc (mb, loc);
5876 mono_mb_emit_byte (mb, CEE_LDNULL);
5877 mono_mb_emit_stloc (mb, 3);
5879 mono_mb_emit_ldloc (mb, 0);
5880 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5882 /* allocate result object */
5884 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5885 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5886 mono_mb_emit_stloc (mb, 3);
5890 mono_mb_emit_ldloc (mb, 3);
5891 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5892 mono_mb_emit_stloc (mb, 1);
5894 /* emit conversion code */
5895 emit_struct_conv (mb, klass, TRUE);
5897 emit_struct_free (mb, klass, loc);
5899 /* Free the pointer allocated by unmanaged code */
5900 mono_mb_emit_ldloc (mb, loc);
5901 mono_mb_emit_icall (mb, mono_marshal_free);
5902 mono_mb_patch_branch (mb, pos);
5906 case MARSHAL_ACTION_MANAGED_CONV_IN:
5907 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5909 if (klass->delegate) {
5910 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5911 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5912 mono_mb_emit_ldarg (mb, argnum);
5914 mono_mb_emit_byte (mb, CEE_LDIND_I);
5915 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5916 mono_mb_emit_stloc (mb, conv_arg);
5920 if (klass == mono_defaults.stringbuilder_class) {
5921 MonoMarshalNative encoding;
5923 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5926 g_assert (encoding == MONO_NATIVE_LPSTR || encoding == MONO_NATIVE_UTF8STR);
5928 g_assert (!t->byref);
5929 g_assert (encoding != -1);
5931 mono_mb_emit_ldarg (mb, argnum);
5932 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5933 mono_mb_emit_stloc (mb, conv_arg);
5937 /* The class can not have an automatic layout */
5938 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5939 mono_mb_emit_auto_layout_exception (mb, klass);
5943 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5944 mono_mb_emit_byte (mb, CEE_LDNULL);
5945 mono_mb_emit_stloc (mb, conv_arg);
5950 mono_mb_emit_ldarg (mb, argnum);
5954 /* Check for NULL and raise an exception */
5955 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5957 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5959 mono_mb_patch_branch (mb, pos2);
5960 mono_mb_emit_ldarg (mb, argnum);
5961 mono_mb_emit_byte (mb, CEE_LDIND_I);
5964 mono_mb_emit_stloc (mb, 0);
5966 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5967 mono_mb_emit_stloc (mb, conv_arg);
5969 mono_mb_emit_ldloc (mb, 0);
5970 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5972 /* Create and set dst */
5973 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5974 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5975 mono_mb_emit_stloc (mb, conv_arg);
5976 mono_mb_emit_ldloc (mb, conv_arg);
5977 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5978 mono_mb_emit_stloc (mb, 1);
5980 /* emit valuetype conversion code */
5981 emit_struct_conv (mb, klass, TRUE);
5983 mono_mb_patch_branch (mb, pos);
5986 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5987 if (klass->delegate) {
5990 mono_mb_emit_ldarg (mb, argnum);
5991 mono_mb_emit_ldloc (mb, conv_arg);
5992 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5993 mono_mb_emit_byte (mb, stind_op);
5999 /* Check for null */
6000 mono_mb_emit_ldloc (mb, conv_arg);
6001 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6002 mono_mb_emit_ldarg (mb, argnum);
6003 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6004 mono_mb_emit_byte (mb, CEE_STIND_REF);
6005 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6007 mono_mb_patch_branch (mb, pos);
6010 mono_mb_emit_ldloc (mb, conv_arg);
6011 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6012 mono_mb_emit_stloc (mb, 0);
6014 /* Allocate and set dest */
6015 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6016 mono_mb_emit_byte (mb, CEE_CONV_I);
6017 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6018 mono_mb_emit_stloc (mb, 1);
6020 /* Update argument pointer */
6021 mono_mb_emit_ldarg (mb, argnum);
6022 mono_mb_emit_ldloc (mb, 1);
6023 mono_mb_emit_byte (mb, CEE_STIND_I);
6025 /* emit valuetype conversion code */
6026 emit_struct_conv (mb, klass, FALSE);
6028 mono_mb_patch_branch (mb, pos2);
6029 } else if (klass == mono_defaults.stringbuilder_class) {
6030 // FIXME: What to do here ?
6032 /* byval [Out] marshalling */
6034 /* FIXME: Handle null */
6037 mono_mb_emit_ldloc (mb, conv_arg);
6038 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6039 mono_mb_emit_stloc (mb, 0);
6042 mono_mb_emit_ldarg (mb, argnum);
6043 mono_mb_emit_stloc (mb, 1);
6045 /* emit valuetype conversion code */
6046 emit_struct_conv (mb, klass, FALSE);
6050 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6051 if (klass->delegate) {
6052 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6053 mono_mb_emit_stloc (mb, 3);
6057 /* The class can not have an automatic layout */
6058 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6059 mono_mb_emit_auto_layout_exception (mb, klass);
6063 mono_mb_emit_stloc (mb, 0);
6064 /* Check for null */
6065 mono_mb_emit_ldloc (mb, 0);
6066 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6067 mono_mb_emit_byte (mb, CEE_LDNULL);
6068 mono_mb_emit_stloc (mb, 3);
6069 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6071 mono_mb_patch_branch (mb, pos);
6074 mono_mb_emit_ldloc (mb, 0);
6075 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6076 mono_mb_emit_stloc (mb, 0);
6078 /* Allocate and set dest */
6079 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6080 mono_mb_emit_byte (mb, CEE_CONV_I);
6081 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6082 mono_mb_emit_byte (mb, CEE_DUP);
6083 mono_mb_emit_stloc (mb, 1);
6084 mono_mb_emit_stloc (mb, 3);
6086 emit_struct_conv (mb, klass, FALSE);
6088 mono_mb_patch_branch (mb, pos2);
6092 g_assert_not_reached ();
6103 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6104 MonoMarshalSpec *spec,
6105 int conv_arg, MonoType **conv_arg_type,
6106 MarshalAction action)
6108 MonoMethodBuilder *mb = m->mb;
6109 static MonoMethod *get_object_for_native_variant = NULL;
6110 static MonoMethod *get_native_variant_for_object = NULL;
6112 if (!get_object_for_native_variant)
6113 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6114 g_assert (get_object_for_native_variant);
6116 if (!get_native_variant_for_object)
6117 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6118 g_assert (get_native_variant_for_object);
6121 case MARSHAL_ACTION_CONV_IN: {
6122 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6125 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6127 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6129 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6132 mono_mb_emit_ldarg (mb, argnum);
6134 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6135 mono_mb_emit_ldloc_addr (mb, conv_arg);
6136 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6140 case MARSHAL_ACTION_CONV_OUT: {
6141 static MonoMethod *variant_clear = NULL;
6144 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6145 g_assert (variant_clear);
6148 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6149 mono_mb_emit_ldarg (mb, argnum);
6150 mono_mb_emit_ldloc_addr (mb, conv_arg);
6151 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6152 mono_mb_emit_byte (mb, CEE_STIND_REF);
6155 mono_mb_emit_ldloc_addr (mb, conv_arg);
6156 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6160 case MARSHAL_ACTION_PUSH:
6162 mono_mb_emit_ldloc_addr (mb, conv_arg);
6164 mono_mb_emit_ldloc (mb, conv_arg);
6167 case MARSHAL_ACTION_CONV_RESULT: {
6168 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6169 mono_mb_emit_exception_marshal_directive (mb, msg);
6173 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6174 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6177 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6179 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6181 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6185 mono_mb_emit_ldarg (mb, argnum);
6187 mono_mb_emit_ldarg_addr (mb, argnum);
6188 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6189 mono_mb_emit_stloc (mb, conv_arg);
6193 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6194 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6195 mono_mb_emit_ldloc (mb, conv_arg);
6196 mono_mb_emit_ldarg (mb, argnum);
6197 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6202 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6203 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6204 mono_mb_emit_exception_marshal_directive (mb, msg);
6209 g_assert_not_reached ();
6215 #endif /* DISABLE_COM */
6216 #endif /* DISABLE_JIT */
6219 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6221 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6222 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6224 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6226 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6238 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6239 MonoMarshalSpec *spec,
6240 int conv_arg, MonoType **conv_arg_type,
6241 MarshalAction action)
6245 case MARSHAL_ACTION_CONV_IN:
6246 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6248 case MARSHAL_ACTION_MANAGED_CONV_IN:
6249 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6253 MonoMethodBuilder *mb = m->mb;
6254 MonoClass *klass = mono_class_from_mono_type (t);
6255 gboolean need_convert, need_free;
6256 MonoMarshalNative encoding;
6258 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6261 case MARSHAL_ACTION_CONV_IN:
6262 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6263 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6265 if (klass->element_class->blittable) {
6266 mono_mb_emit_ldarg (mb, argnum);
6268 mono_mb_emit_byte (mb, CEE_LDIND_I);
6269 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6270 mono_mb_emit_stloc (mb, conv_arg);
6273 guint32 label1, label2, label3;
6274 int index_var, src_var, dest_ptr, esize;
6275 MonoMarshalConv conv;
6276 gboolean is_string = FALSE;
6278 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6280 eklass = klass->element_class;
6282 if (eklass == mono_defaults.string_class) {
6284 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6286 else if (eklass == mono_defaults.stringbuilder_class) {
6288 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6291 conv = MONO_MARSHAL_CONV_INVALID;
6293 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6294 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6295 mono_mb_emit_exception_marshal_directive (mb, msg);
6299 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6300 mono_mb_emit_ldarg (mb, argnum);
6302 mono_mb_emit_byte (mb, CEE_LDIND_I);
6303 mono_mb_emit_stloc (mb, src_var);
6306 mono_mb_emit_ldloc (mb, src_var);
6307 mono_mb_emit_stloc (mb, conv_arg);
6308 mono_mb_emit_ldloc (mb, src_var);
6309 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6312 esize = sizeof (gpointer);
6313 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6314 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6316 esize = mono_class_native_size (eklass, NULL);
6318 /* allocate space for the native struct and store the address */
6319 mono_mb_emit_icon (mb, esize);
6320 mono_mb_emit_ldloc (mb, src_var);
6321 mono_mb_emit_byte (mb, CEE_LDLEN);
6323 if (eklass == mono_defaults.string_class) {
6324 /* Make the array bigger for the terminating null */
6325 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6326 mono_mb_emit_byte (mb, CEE_ADD);
6328 mono_mb_emit_byte (mb, CEE_MUL);
6329 mono_mb_emit_byte (mb, CEE_PREFIX1);
6330 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6331 mono_mb_emit_stloc (mb, conv_arg);
6333 mono_mb_emit_ldloc (mb, conv_arg);
6334 mono_mb_emit_stloc (mb, dest_ptr);
6336 /* Emit marshalling loop */
6337 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6338 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6339 mono_mb_emit_stloc (mb, index_var);
6340 label2 = mono_mb_get_label (mb);
6341 mono_mb_emit_ldloc (mb, index_var);
6342 mono_mb_emit_ldloc (mb, src_var);
6343 mono_mb_emit_byte (mb, CEE_LDLEN);
6344 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6346 /* Emit marshalling code */
6350 mono_mb_emit_ldloc (mb, dest_ptr);
6351 mono_mb_emit_ldloc (mb, src_var);
6352 mono_mb_emit_ldloc (mb, index_var);
6353 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6354 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6355 mono_mb_emit_byte (mb, stind_op);
6357 /* set the src_ptr */
6358 mono_mb_emit_ldloc (mb, src_var);
6359 mono_mb_emit_ldloc (mb, index_var);
6360 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6361 mono_mb_emit_stloc (mb, 0);
6364 mono_mb_emit_ldloc (mb, dest_ptr);
6365 mono_mb_emit_stloc (mb, 1);
6367 /* emit valuetype conversion code */
6368 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6371 mono_mb_emit_add_to_local (mb, index_var, 1);
6372 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6374 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6376 mono_mb_patch_branch (mb, label3);
6378 if (eklass == mono_defaults.string_class) {
6379 /* Null terminate */
6380 mono_mb_emit_ldloc (mb, dest_ptr);
6381 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6382 mono_mb_emit_byte (mb, CEE_STIND_REF);
6385 mono_mb_patch_branch (mb, label1);
6390 case MARSHAL_ACTION_CONV_OUT:
6391 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6392 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);
6393 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6396 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6397 int param_num = spec->data.array_data.param_num;
6398 MonoType *param_type;
6400 param_type = m->sig->params [param_num];
6402 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6403 char *msg = g_strdup ("Not implemented.");
6404 mono_mb_emit_exception_marshal_directive (mb, msg);
6409 mono_mb_emit_ldarg (mb, argnum);
6411 /* Create the managed array */
6412 mono_mb_emit_ldarg (mb, param_num);
6413 if (m->sig->params [param_num]->byref)
6414 // FIXME: Support other types
6415 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6416 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6417 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6418 /* Store into argument */
6419 mono_mb_emit_byte (mb, CEE_STIND_REF);
6423 if (need_convert || need_free) {
6424 /* FIXME: Optimize blittable case */
6426 guint32 label1, label2, label3;
6427 int index_var, src_ptr, loc, esize;
6429 eklass = klass->element_class;
6430 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6431 esize = sizeof (gpointer);
6432 else if (eklass == mono_defaults.char_class)
6433 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6435 esize = mono_class_native_size (eklass, NULL);
6436 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6437 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6440 mono_mb_emit_ldarg (mb, argnum);
6442 mono_mb_emit_byte (mb, CEE_LDIND_I);
6443 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6445 mono_mb_emit_ldloc (mb, conv_arg);
6446 mono_mb_emit_stloc (mb, src_ptr);
6448 /* Emit marshalling loop */
6449 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6450 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6451 mono_mb_emit_stloc (mb, index_var);
6452 label2 = mono_mb_get_label (mb);
6453 mono_mb_emit_ldloc (mb, index_var);
6454 mono_mb_emit_ldarg (mb, argnum);
6456 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6457 mono_mb_emit_byte (mb, CEE_LDLEN);
6458 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6460 /* Emit marshalling code */
6462 if (eklass == mono_defaults.stringbuilder_class) {
6463 gboolean need_free2;
6464 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6466 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6469 mono_mb_emit_ldarg (mb, argnum);
6471 mono_mb_emit_byte (mb, CEE_LDIND_I);
6472 mono_mb_emit_ldloc (mb, index_var);
6473 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6476 mono_mb_emit_ldloc (mb, src_ptr);
6477 mono_mb_emit_byte (mb, CEE_LDIND_I);
6479 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6483 mono_mb_emit_ldloc (mb, src_ptr);
6484 mono_mb_emit_byte (mb, CEE_LDIND_I);
6486 mono_mb_emit_icall (mb, mono_marshal_free);
6489 else if (eklass == mono_defaults.string_class) {
6492 mono_mb_emit_ldloc (mb, src_ptr);
6493 mono_mb_emit_byte (mb, CEE_LDIND_I);
6495 mono_mb_emit_icall (mb, mono_marshal_free);
6500 /* set the src_ptr */
6501 mono_mb_emit_ldloc (mb, src_ptr);
6502 mono_mb_emit_stloc (mb, 0);
6505 mono_mb_emit_ldarg (mb, argnum);
6507 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6508 mono_mb_emit_ldloc (mb, index_var);
6509 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6510 mono_mb_emit_stloc (mb, 1);
6512 /* emit valuetype conversion code */
6513 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6517 mono_mb_emit_ldloc (mb, src_ptr);
6518 mono_mb_emit_stloc (mb, loc);
6519 mono_mb_emit_ldloc (mb, loc);
6521 emit_struct_free (mb, eklass, loc);
6525 mono_mb_emit_add_to_local (mb, index_var, 1);
6526 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6528 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6530 mono_mb_patch_branch (mb, label1);
6531 mono_mb_patch_branch (mb, label3);
6534 if (klass->element_class->blittable) {
6535 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6537 mono_mb_emit_ldarg (mb, argnum);
6539 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6540 mono_mb_emit_ldloc (mb, conv_arg);
6541 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6546 case MARSHAL_ACTION_PUSH:
6548 mono_mb_emit_ldloc_addr (mb, conv_arg);
6550 mono_mb_emit_ldloc (mb, conv_arg);
6553 case MARSHAL_ACTION_CONV_RESULT:
6554 /* fixme: we need conversions here */
6555 mono_mb_emit_stloc (mb, 3);
6558 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6560 guint32 label1, label2, label3;
6561 int index_var, src_ptr, esize, param_num, num_elem;
6562 MonoMarshalConv conv;
6563 gboolean is_string = FALSE;
6565 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6566 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6569 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6570 mono_mb_emit_exception_marshal_directive (mb, msg);
6574 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6575 mono_mb_emit_exception_marshal_directive (mb, msg);
6578 if (spec->native != MONO_NATIVE_LPARRAY) {
6579 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6580 mono_mb_emit_exception_marshal_directive (mb, msg);
6584 /* FIXME: t is from the method which is wrapped, not the delegate type */
6585 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6587 param_num = spec->data.array_data.param_num;
6588 num_elem = spec->data.array_data.num_elem;
6589 if (spec->data.array_data.elem_mult == 0)
6590 /* param_num is not specified */
6593 if (param_num == -1) {
6594 if (num_elem <= 0) {
6595 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6596 mono_mb_emit_exception_marshal_directive (mb, msg);
6601 /* FIXME: Optimize blittable case */
6603 eklass = klass->element_class;
6604 if (eklass == mono_defaults.string_class) {
6606 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6608 else if (eklass == mono_defaults.stringbuilder_class) {
6610 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6613 conv = MONO_MARSHAL_CONV_INVALID;
6615 mono_marshal_load_type_info (eklass);
6618 esize = sizeof (gpointer);
6620 esize = mono_class_native_size (eklass, NULL);
6621 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6623 mono_mb_emit_byte (mb, CEE_LDNULL);
6624 mono_mb_emit_stloc (mb, conv_arg);
6626 /* Check param index */
6627 if (param_num != -1) {
6628 if (param_num >= m->sig->param_count) {
6629 char *msg = g_strdup ("Array size control parameter index is out of range.");
6630 mono_mb_emit_exception_marshal_directive (mb, msg);
6633 switch (m->sig->params [param_num]->type) {
6646 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6647 mono_mb_emit_exception_marshal_directive (mb, msg);
6654 mono_mb_emit_ldarg (mb, argnum);
6655 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6657 mono_mb_emit_ldarg (mb, argnum);
6658 mono_mb_emit_stloc (mb, src_ptr);
6660 /* Create managed array */
6662 * The LPArray marshalling spec says that sometimes param_num starts
6663 * from 1, sometimes it starts from 0. But MS seems to allways start
6667 if (param_num == -1) {
6668 mono_mb_emit_icon (mb, num_elem);
6670 mono_mb_emit_ldarg (mb, param_num);
6672 mono_mb_emit_icon (mb, num_elem);
6673 mono_mb_emit_byte (mb, CEE_ADD);
6675 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6678 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6679 mono_mb_emit_stloc (mb, conv_arg);
6681 if (eklass->blittable) {
6682 mono_mb_emit_ldloc (mb, conv_arg);
6683 mono_mb_emit_byte (mb, CEE_CONV_I);
6684 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6685 mono_mb_emit_byte (mb, CEE_ADD);
6686 mono_mb_emit_ldarg (mb, argnum);
6687 mono_mb_emit_ldloc (mb, conv_arg);
6688 mono_mb_emit_byte (mb, CEE_LDLEN);
6689 mono_mb_emit_icon (mb, esize);
6690 mono_mb_emit_byte (mb, CEE_MUL);
6691 mono_mb_emit_byte (mb, CEE_PREFIX1);
6692 mono_mb_emit_byte (mb, CEE_CPBLK);
6693 mono_mb_patch_branch (mb, label1);
6697 /* Emit marshalling loop */
6698 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6699 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6700 mono_mb_emit_stloc (mb, index_var);
6701 label2 = mono_mb_get_label (mb);
6702 mono_mb_emit_ldloc (mb, index_var);
6703 mono_mb_emit_ldloc (mb, conv_arg);
6704 mono_mb_emit_byte (mb, CEE_LDLEN);
6705 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6707 /* Emit marshalling code */
6709 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6711 mono_mb_emit_ldloc (mb, conv_arg);
6712 mono_mb_emit_ldloc (mb, index_var);
6714 mono_mb_emit_ldloc (mb, src_ptr);
6715 mono_mb_emit_byte (mb, CEE_LDIND_I);
6717 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6718 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6721 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6722 mono_mb_emit_exception_marshal_directive (mb, msg);
6726 mono_mb_emit_add_to_local (mb, index_var, 1);
6727 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6729 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6731 mono_mb_patch_branch (mb, label1);
6732 mono_mb_patch_branch (mb, label3);
6736 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6738 guint32 label1, label2, label3;
6739 int index_var, dest_ptr, esize, param_num, num_elem;
6740 MonoMarshalConv conv;
6741 gboolean is_string = FALSE;
6744 /* Already handled in CONV_IN */
6747 /* These are already checked in CONV_IN */
6748 g_assert (!t->byref);
6749 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6750 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6752 param_num = spec->data.array_data.param_num;
6753 num_elem = spec->data.array_data.num_elem;
6755 if (spec->data.array_data.elem_mult == 0)
6756 /* param_num is not specified */
6759 if (param_num == -1) {
6760 if (num_elem <= 0) {
6761 g_assert_not_reached ();
6765 /* FIXME: Optimize blittable case */
6767 eklass = klass->element_class;
6768 if (eklass == mono_defaults.string_class) {
6770 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6772 else if (eklass == mono_defaults.stringbuilder_class) {
6774 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6777 conv = MONO_MARSHAL_CONV_INVALID;
6779 mono_marshal_load_type_info (eklass);
6782 esize = sizeof (gpointer);
6784 esize = mono_class_native_size (eklass, NULL);
6786 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6789 mono_mb_emit_ldloc (mb, conv_arg);
6790 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6792 mono_mb_emit_ldarg (mb, argnum);
6793 mono_mb_emit_stloc (mb, dest_ptr);
6795 if (eklass->blittable) {
6797 mono_mb_emit_ldarg (mb, argnum);
6799 mono_mb_emit_ldloc (mb, conv_arg);
6800 mono_mb_emit_byte (mb, CEE_CONV_I);
6801 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6802 mono_mb_emit_byte (mb, CEE_ADD);
6804 mono_mb_emit_ldloc (mb, conv_arg);
6805 mono_mb_emit_byte (mb, CEE_LDLEN);
6806 mono_mb_emit_icon (mb, esize);
6807 mono_mb_emit_byte (mb, CEE_MUL);
6808 mono_mb_emit_byte (mb, CEE_PREFIX1);
6809 mono_mb_emit_byte (mb, CEE_CPBLK);
6813 /* Emit marshalling loop */
6814 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6815 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6816 mono_mb_emit_stloc (mb, index_var);
6817 label2 = mono_mb_get_label (mb);
6818 mono_mb_emit_ldloc (mb, index_var);
6819 mono_mb_emit_ldloc (mb, conv_arg);
6820 mono_mb_emit_byte (mb, CEE_LDLEN);
6821 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6823 /* Emit marshalling code */
6826 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6829 mono_mb_emit_ldloc (mb, dest_ptr);
6832 mono_mb_emit_ldloc (mb, conv_arg);
6833 mono_mb_emit_ldloc (mb, index_var);
6835 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6837 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6838 mono_mb_emit_byte (mb, stind_op);
6841 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6842 mono_mb_emit_exception_marshal_directive (mb, msg);
6846 mono_mb_emit_add_to_local (mb, index_var, 1);
6847 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6849 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6851 mono_mb_patch_branch (mb, label1);
6852 mono_mb_patch_branch (mb, label3);
6856 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6858 guint32 label1, label2, label3;
6859 int index_var, src, dest, esize;
6860 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6861 gboolean is_string = FALSE;
6863 g_assert (!t->byref);
6865 eklass = klass->element_class;
6867 mono_marshal_load_type_info (eklass);
6869 if (eklass == mono_defaults.string_class) {
6871 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6874 g_assert_not_reached ();
6878 esize = sizeof (gpointer);
6879 else if (eklass == mono_defaults.char_class)
6880 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6882 esize = mono_class_native_size (eklass, NULL);
6884 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6885 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6887 mono_mb_emit_stloc (mb, src);
6888 mono_mb_emit_ldloc (mb, src);
6889 mono_mb_emit_stloc (mb, 3);
6891 /* Check for null */
6892 mono_mb_emit_ldloc (mb, src);
6893 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6895 /* Allocate native array */
6896 mono_mb_emit_icon (mb, esize);
6897 mono_mb_emit_ldloc (mb, src);
6898 mono_mb_emit_byte (mb, CEE_LDLEN);
6900 if (eklass == mono_defaults.string_class) {
6901 /* Make the array bigger for the terminating null */
6902 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6903 mono_mb_emit_byte (mb, CEE_ADD);
6905 mono_mb_emit_byte (mb, CEE_MUL);
6906 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6907 mono_mb_emit_stloc (mb, dest);
6908 mono_mb_emit_ldloc (mb, dest);
6909 mono_mb_emit_stloc (mb, 3);
6911 /* Emit marshalling loop */
6912 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6913 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6914 mono_mb_emit_stloc (mb, index_var);
6915 label2 = mono_mb_get_label (mb);
6916 mono_mb_emit_ldloc (mb, index_var);
6917 mono_mb_emit_ldloc (mb, src);
6918 mono_mb_emit_byte (mb, CEE_LDLEN);
6919 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6921 /* Emit marshalling code */
6924 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6927 mono_mb_emit_ldloc (mb, dest);
6930 mono_mb_emit_ldloc (mb, src);
6931 mono_mb_emit_ldloc (mb, index_var);
6933 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6935 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6936 mono_mb_emit_byte (mb, stind_op);
6939 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6940 mono_mb_emit_exception_marshal_directive (mb, msg);
6944 mono_mb_emit_add_to_local (mb, index_var, 1);
6945 mono_mb_emit_add_to_local (mb, dest, esize);
6947 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6949 mono_mb_patch_branch (mb, label3);
6950 mono_mb_patch_branch (mb, label1);
6954 g_assert_not_reached ();
6961 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6964 return &mono_defaults.int32_class->byval_arg;
6966 switch (spec->native) {
6967 case MONO_NATIVE_I1:
6968 case MONO_NATIVE_U1:
6969 return &mono_defaults.byte_class->byval_arg;
6970 case MONO_NATIVE_VARIANTBOOL:
6971 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6972 return &mono_defaults.int16_class->byval_arg;
6973 case MONO_NATIVE_BOOLEAN:
6974 return &mono_defaults.int32_class->byval_arg;
6976 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6977 return &mono_defaults.int32_class->byval_arg;
6983 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6985 MonoClass* conv_arg_class = mono_defaults.int32_class;
6987 switch (spec->native) {
6988 case MONO_NATIVE_I1:
6989 case MONO_NATIVE_U1:
6990 conv_arg_class = mono_defaults.byte_class;
6991 if (ldop) *ldop = CEE_LDIND_I1;
6993 case MONO_NATIVE_VARIANTBOOL:
6994 conv_arg_class = mono_defaults.int16_class;
6995 if (ldop) *ldop = CEE_LDIND_I2;
6997 case MONO_NATIVE_BOOLEAN:
7000 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7003 return conv_arg_class;
7007 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7008 MonoMarshalSpec *spec,
7009 int conv_arg, MonoType **conv_arg_type,
7010 MarshalAction action)
7014 case MARSHAL_ACTION_CONV_IN:
7016 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7018 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7021 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7022 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7024 *conv_arg_type = &conv_arg_class->this_arg;
7026 *conv_arg_type = &conv_arg_class->byval_arg;
7032 MonoMethodBuilder *mb = m->mb;
7035 case MARSHAL_ACTION_CONV_IN: {
7036 MonoType *local_type;
7038 guint8 ldc_op = CEE_LDC_I4_1;
7040 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7042 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7044 *conv_arg_type = local_type;
7045 conv_arg = mono_mb_add_local (mb, local_type);
7047 mono_mb_emit_ldarg (mb, argnum);
7049 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7050 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7051 mono_mb_emit_byte (mb, ldc_op);
7052 mono_mb_emit_stloc (mb, conv_arg);
7053 mono_mb_patch_branch (mb, label_false);
7058 case MARSHAL_ACTION_CONV_OUT:
7060 int label_false, label_end;
7064 mono_mb_emit_ldarg (mb, argnum);
7065 mono_mb_emit_ldloc (mb, conv_arg);
7067 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7068 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7070 label_end = mono_mb_emit_branch (mb, CEE_BR);
7071 mono_mb_patch_branch (mb, label_false);
7072 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7073 mono_mb_patch_branch (mb, label_end);
7075 mono_mb_emit_byte (mb, CEE_STIND_I1);
7079 case MARSHAL_ACTION_PUSH:
7081 mono_mb_emit_ldloc_addr (mb, conv_arg);
7083 mono_mb_emit_ldloc (mb, conv_arg);
7085 mono_mb_emit_ldarg (mb, argnum);
7088 case MARSHAL_ACTION_CONV_RESULT:
7089 /* maybe we need to make sure that it fits within 8 bits */
7090 mono_mb_emit_stloc (mb, 3);
7093 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7094 MonoClass* conv_arg_class = mono_defaults.int32_class;
7095 guint8 ldop = CEE_LDIND_I4;
7096 int label_null, label_false;
7098 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7099 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7102 *conv_arg_type = &conv_arg_class->this_arg;
7104 *conv_arg_type = &conv_arg_class->byval_arg;
7107 mono_mb_emit_ldarg (mb, argnum);
7111 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7112 mono_mb_emit_ldarg (mb, argnum);
7113 mono_mb_emit_byte (mb, ldop);
7117 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7118 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7119 mono_mb_emit_stloc (mb, conv_arg);
7120 mono_mb_patch_branch (mb, label_false);
7123 mono_mb_patch_branch (mb, label_null);
7127 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7128 guint8 stop = CEE_STIND_I4;
7129 guint8 ldc_op = CEE_LDC_I4_1;
7130 int label_null,label_false, label_end;;
7135 switch (spec->native) {
7136 case MONO_NATIVE_I1:
7137 case MONO_NATIVE_U1:
7138 stop = CEE_STIND_I1;
7140 case MONO_NATIVE_VARIANTBOOL:
7141 stop = CEE_STIND_I2;
7142 ldc_op = CEE_LDC_I4_M1;
7150 mono_mb_emit_ldarg (mb, argnum);
7151 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7153 mono_mb_emit_ldarg (mb, argnum);
7154 mono_mb_emit_ldloc (mb, conv_arg);
7156 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7157 mono_mb_emit_byte (mb, ldc_op);
7158 label_end = mono_mb_emit_branch (mb, CEE_BR);
7160 mono_mb_patch_branch (mb, label_false);
7161 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7162 mono_mb_patch_branch (mb, label_end);
7164 mono_mb_emit_byte (mb, stop);
7165 mono_mb_patch_branch (mb, label_null);
7170 g_assert_not_reached ();
7177 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7178 MonoMarshalSpec *spec, int conv_arg,
7179 MonoType **conv_arg_type, MarshalAction action)
7182 MonoMethodBuilder *mb = m->mb;
7185 case MARSHAL_ACTION_CONV_IN:
7186 /* MS seems to allow this in some cases, ie. bxc #158 */
7188 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7189 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7190 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7195 case MARSHAL_ACTION_PUSH:
7196 mono_mb_emit_ldarg (mb, argnum);
7199 case MARSHAL_ACTION_CONV_RESULT:
7200 /* no conversions necessary */
7201 mono_mb_emit_stloc (mb, 3);
7212 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7213 MonoMarshalSpec *spec, int conv_arg,
7214 MonoType **conv_arg_type, MarshalAction action)
7217 MonoMethodBuilder *mb = m->mb;
7220 case MARSHAL_ACTION_PUSH:
7221 /* fixme: dont know how to marshal that. We cant simply
7222 * convert it to a one byte UTF8 character, because an
7223 * unicode character may need more that one byte in UTF8 */
7224 mono_mb_emit_ldarg (mb, argnum);
7227 case MARSHAL_ACTION_CONV_RESULT:
7228 /* fixme: we need conversions here */
7229 mono_mb_emit_stloc (mb, 3);
7240 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7241 MonoMarshalSpec *spec, int conv_arg,
7242 MonoType **conv_arg_type, MarshalAction action)
7245 MonoMethodBuilder *mb = m->mb;
7248 case MARSHAL_ACTION_PUSH:
7249 mono_mb_emit_ldarg (mb, argnum);
7252 case MARSHAL_ACTION_CONV_RESULT:
7253 /* no conversions necessary */
7254 mono_mb_emit_stloc (mb, 3);
7265 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7266 MonoMarshalSpec *spec, int conv_arg,
7267 MonoType **conv_arg_type, MarshalAction action)
7269 /* Ensure that we have marshalling info for this param */
7270 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7272 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7273 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7275 if (spec && spec->native == MONO_NATIVE_ASANY)
7276 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7279 case MONO_TYPE_VALUETYPE:
7280 if (t->data.klass == mono_defaults.handleref_class)
7281 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7283 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7284 case MONO_TYPE_STRING:
7285 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7286 case MONO_TYPE_CLASS:
7287 case MONO_TYPE_OBJECT:
7288 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7289 if (spec && spec->native == MONO_NATIVE_STRUCT)
7290 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7293 #if !defined(DISABLE_COM)
7294 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7295 spec->native == MONO_NATIVE_IDISPATCH ||
7296 spec->native == MONO_NATIVE_INTERFACE))
7297 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7298 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7299 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7300 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7301 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7304 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7305 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7306 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7308 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7309 case MONO_TYPE_ARRAY:
7310 case MONO_TYPE_SZARRAY:
7311 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7312 case MONO_TYPE_BOOLEAN:
7313 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7315 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7316 case MONO_TYPE_CHAR:
7317 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7330 case MONO_TYPE_FNPTR:
7331 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7332 case MONO_TYPE_GENERICINST:
7333 if (mono_type_generic_inst_is_valuetype (t))
7334 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7336 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7344 * mono_marshal_emit_native_wrapper:
7345 * @image: the image to use for looking up custom marshallers
7346 * @sig: The signature of the native function
7347 * @piinfo: Marshalling information
7348 * @mspecs: Marshalling information
7349 * @aot: whenever the created method will be compiled by the AOT compiler
7350 * @method: if non-NULL, the pinvoke method to call
7351 * @check_exceptions: Whenever to check for pending exceptions after the native call
7352 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7354 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7357 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)
7359 EmitMarshalContext m;
7360 MonoMethodSignature *csig;
7362 int i, argnum, *tmp_locals;
7363 int type, param_shift = 0;
7364 int coop_gc_stack_dummy, coop_gc_var;
7366 memset (&m, 0, sizeof (m));
7371 /* we copy the signature, so that we can set pinvoke to 0 */
7373 /* The function address is passed as the first argument */
7374 g_assert (!sig->hasthis);
7377 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7385 /* we allocate local for use with emit_struct_conv() */
7386 /* allocate local 0 (pointer) src_ptr */
7387 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7388 /* allocate local 1 (pointer) dst_ptr */
7389 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7390 /* allocate local 2 (boolean) delete_old */
7391 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7393 /* delete_old = FALSE */
7394 mono_mb_emit_icon (mb, 0);
7395 mono_mb_emit_stloc (mb, 2);
7397 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7398 /* allocate local 3 to store the return value */
7399 mono_mb_add_local (mb, sig->ret);
7402 if (mono_threads_is_coop_enabled ()) {
7403 /* local 4, dummy local used to get a stack address for suspend funcs */
7404 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7405 /* local 5, the local to be used when calling the suspend funcs */
7406 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7410 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7412 * ret = method (...);
7414 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7421 if (MONO_TYPE_ISSTRUCT (sig->ret))
7422 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7424 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7425 /* Return type custom marshaling */
7427 * Since we can't determine the return type of the unmanaged function,
7428 * we assume it returns a pointer, and pass that pointer to
7429 * MarshalNativeToManaged.
7431 csig->ret = &mono_defaults.int_class->byval_arg;
7434 /* we first do all conversions */
7435 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7436 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7438 for (i = 0; i < sig->param_count; i ++) {
7439 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7442 // In coop mode need to register blocking state during native call
7443 if (mono_threads_is_coop_enabled ()) {
7444 // Perform an extra, early lookup of the function address, so any exceptions
7445 // potentially resulting from the lookup occur before entering blocking mode.
7446 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7447 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7448 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7449 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7452 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7453 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7454 mono_mb_emit_stloc (mb, coop_gc_var);
7457 /* push all arguments */
7460 mono_mb_emit_byte (mb, CEE_LDARG_0);
7462 for (i = 0; i < sig->param_count; i++) {
7463 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7466 /* call the native method */
7468 mono_mb_emit_byte (mb, CEE_LDARG_0);
7469 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7470 mono_mb_emit_byte (mb, CEE_LDIND_I);
7471 mono_mb_emit_calli (mb, csig);
7472 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7474 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7476 g_assert_not_reached ();
7480 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7481 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7482 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7483 mono_mb_emit_calli (mb, csig);
7485 mono_mb_emit_native_call (mb, csig, func);
7489 /* Set LastError if needed */
7490 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7493 static MonoMethodSignature *get_last_error_sig = NULL;
7494 if (!get_last_error_sig) {
7495 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7496 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7497 get_last_error_sig->pinvoke = 1;
7501 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7502 * clobber its value.
7504 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7505 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7507 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7508 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7509 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7512 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7516 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7517 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7518 mono_class_init (klass);
7519 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7520 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7521 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7522 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7523 mono_mb_emit_stloc (mb, m.vtaddr_var);
7527 /* Unblock before converting the result, since that can involve calls into the runtime */
7528 if (mono_threads_is_coop_enabled ()) {
7529 mono_mb_emit_ldloc (mb, coop_gc_var);
7530 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7531 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7534 /* convert the result */
7535 if (!sig->ret->byref) {
7536 MonoMarshalSpec *spec = mspecs [0];
7537 type = sig->ret->type;
7539 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7540 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7544 case MONO_TYPE_VOID:
7546 case MONO_TYPE_VALUETYPE:
7547 klass = sig->ret->data.klass;
7548 if (klass->enumtype) {
7549 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7552 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7566 case MONO_TYPE_FNPTR:
7567 case MONO_TYPE_STRING:
7568 case MONO_TYPE_CLASS:
7569 case MONO_TYPE_OBJECT:
7570 case MONO_TYPE_BOOLEAN:
7571 case MONO_TYPE_ARRAY:
7572 case MONO_TYPE_SZARRAY:
7573 case MONO_TYPE_CHAR:
7575 case MONO_TYPE_GENERICINST:
7576 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7578 case MONO_TYPE_TYPEDBYREF:
7580 g_warning ("return type 0x%02x unknown", sig->ret->type);
7581 g_assert_not_reached ();
7585 mono_mb_emit_stloc (mb, 3);
7589 * Need to call this after converting the result since MONO_VTADDR needs
7590 * to be adjacent to the call instruction.
7592 if (check_exceptions)
7593 emit_thread_interrupt_checkpoint (mb);
7595 /* we need to convert byref arguments back and free string arrays */
7596 for (i = 0; i < sig->param_count; i++) {
7597 MonoType *t = sig->params [i];
7598 MonoMarshalSpec *spec = mspecs [i + 1];
7600 argnum = i + param_shift;
7602 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7603 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7608 case MONO_TYPE_STRING:
7609 case MONO_TYPE_VALUETYPE:
7610 case MONO_TYPE_CLASS:
7611 case MONO_TYPE_OBJECT:
7612 case MONO_TYPE_SZARRAY:
7613 case MONO_TYPE_BOOLEAN:
7614 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7621 if (!MONO_TYPE_IS_VOID(sig->ret))
7622 mono_mb_emit_ldloc (mb, 3);
7624 mono_mb_emit_byte (mb, CEE_RET);
7626 #endif /* DISABLE_JIT */
7629 * mono_marshal_get_native_wrapper:
7630 * @method: The MonoMethod to wrap.
7631 * @check_exceptions: Whenever to check for pending exceptions
7633 * generates IL code for the pinvoke wrapper (the generated method
7634 * calls the unmanaged code in piinfo->addr)
7637 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7639 MonoMethodSignature *sig, *csig;
7640 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7641 MonoMethodBuilder *mb;
7642 MonoMarshalSpec **mspecs;
7645 gboolean pinvoke = FALSE;
7648 const char *exc_class = "MissingMethodException";
7649 const char *exc_arg = NULL;
7652 g_assert (method != NULL);
7653 g_assert (mono_method_signature (method)->pinvoke);
7655 GHashTable **cache_ptr;
7658 if (check_exceptions)
7659 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7661 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7663 if (check_exceptions)
7664 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7666 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7669 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7671 if ((res = mono_marshal_find_in_cache (cache, method)))
7674 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7675 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7679 return mono_cominterop_get_native_wrapper (method);
7681 g_assert_not_reached ();
7685 sig = mono_method_signature (method);
7687 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7688 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7691 if (!piinfo->addr) {
7693 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7694 exc_arg = "Method contains unsupported native code";
7696 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7698 piinfo->addr = mono_lookup_internal_call (method);
7702 /* hack - redirect certain string constructors to CreateString */
7703 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7704 g_assert (!pinvoke);
7705 g_assert (method->string_ctor);
7706 g_assert (sig->hasthis);
7708 /* CreateString returns a value */
7709 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7710 csig->ret = &mono_defaults.string_class->byval_arg;
7714 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7715 if (!strcmp ("CreateString", res->name) &&
7716 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7719 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7720 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7722 /* create a wrapper to preserve .ctor in stack trace */
7723 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7726 mono_mb_emit_byte (mb, CEE_LDARG_0);
7727 for (i = 1; i <= csig->param_count; i++)
7728 mono_mb_emit_ldarg (mb, i);
7729 mono_mb_emit_managed_call (mb, res, NULL);
7730 mono_mb_emit_byte (mb, CEE_RET);
7733 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7734 info->d.string_ctor.method = method;
7736 /* use native_wrapper_cache because internal calls are looked up there */
7737 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7738 csig->param_count + 1, info, NULL);
7745 /* exception will be thrown */
7746 piinfo->addr = NULL;
7747 g_warning ("cannot find CreateString for .ctor");
7750 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7752 mb->method->save_lmf = 1;
7755 * In AOT mode and embedding scenarios, it is possible that the icall is not
7756 * registered in the runtime doing the AOT compilation.
7758 if (!piinfo->addr && !aot) {
7760 mono_mb_emit_exception (mb, exc_class, exc_arg);
7762 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7763 info->d.managed_to_native.method = method;
7765 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7767 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7768 csig->param_count + 16, info, NULL);
7774 /* internal calls: we simply push all arguments and call the method (no conversions) */
7775 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7777 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7779 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7781 //printf ("%s\n", mono_method_full_name (method, 1));
7783 /* hack - string constructors returns a value */
7784 if (method->string_ctor)
7785 csig->ret = &mono_defaults.string_class->byval_arg;
7789 MonoClass *handle_stack_mark_class;
7790 MonoClass *error_class;
7791 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
7792 MonoMethodSignature *call_sig = csig;
7793 gboolean uses_handles = FALSE;
7794 (void) mono_lookup_internal_call_full (method, &uses_handles);
7797 /* If it uses handles and MonoError, it had better check exceptions */
7798 g_assert (!uses_handles || check_exceptions);
7801 MonoMethodSignature *ret;
7803 /* Add a MonoError argument */
7804 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
7805 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
7807 ret->param_count = csig->param_count + 1;
7808 ret->ret = csig->ret;
7809 for (int i = 0; i < csig->param_count; ++i) {
7810 // FIXME: TODO implement handle wrapping for out and inout params.
7811 g_assert (!mono_signature_param_is_out (csig, i));
7812 ret->params [i] = csig->params [i];
7814 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
7819 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
7820 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
7822 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
7823 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
7824 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
7826 // FIXME: Change csig so it passes a handle not an objref
7833 * Add a null check since public icalls can be called with 'call' which
7834 * does no such check.
7836 mono_mb_emit_byte (mb, CEE_LDARG_0);
7837 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7838 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7839 mono_mb_patch_branch (mb, pos);
7843 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7844 mono_mb_emit_ldloc_addr (mb, error_var);
7845 mono_mb_emit_icall (mb, mono_icall_start);
7846 mono_mb_emit_stloc (mb, thread_info_var);
7849 mono_mb_emit_byte (mb, CEE_LDARG_0);
7850 mono_mb_emit_icall (mb, mono_handle_new);
7852 for (i = 0; i < sig->param_count; i++) {
7853 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7854 if (MONO_TYPE_IS_REFERENCE (sig->params [i])) {
7855 mono_mb_emit_icall (mb, mono_handle_new);
7858 mono_mb_emit_ldloc_addr (mb, error_var);
7861 mono_mb_emit_byte (mb, CEE_LDARG_0);
7862 for (i = 0; i < sig->param_count; i++)
7863 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7867 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7868 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7869 mono_mb_emit_calli (mb, call_sig);
7871 g_assert (piinfo->addr);
7872 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
7876 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
7877 // if (ret != NULL_HANDLE) {
7878 // ret = MONO_HANDLE_RAW(ret)
7880 mono_mb_emit_byte (mb, CEE_DUP);
7881 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7882 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
7883 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7884 mono_mb_patch_branch (mb, pos);
7886 mono_mb_emit_ldloc (mb, thread_info_var);
7887 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7888 mono_mb_emit_ldloc_addr (mb, error_var);
7889 mono_mb_emit_icall (mb, mono_icall_end);
7892 if (check_exceptions)
7893 emit_thread_interrupt_checkpoint (mb);
7894 mono_mb_emit_byte (mb, CEE_RET);
7896 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7897 info->d.managed_to_native.method = method;
7899 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7901 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7910 g_assert (piinfo->addr);
7913 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7914 mono_method_get_marshal_info (method, mspecs);
7916 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7918 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7919 info->d.managed_to_native.method = method;
7921 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7923 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7928 for (i = sig->param_count; i >= 0; i--)
7930 mono_metadata_free_marshal_spec (mspecs [i]);
7934 /* mono_method_print_code (res); */
7940 * mono_marshal_get_native_func_wrapper:
7941 * @image: The image to use for memory allocation and for looking up custom marshallers.
7942 * @sig: The signature of the function
7943 * @func: The native function to wrap
7945 * Returns a wrapper method around native functions, similar to the pinvoke
7949 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7950 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7952 MonoMethodSignature *csig;
7954 SignaturePointerPair key, *new_key;
7955 MonoMethodBuilder *mb;
7964 // Generic types are not safe to place in MonoImage caches.
7965 g_assert (!sig->is_inflated);
7967 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7968 if ((res = mono_marshal_find_in_cache (cache, &key)))
7971 name = g_strdup_printf ("wrapper_native_%p", func);
7972 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7973 mb->method->save_lmf = 1;
7976 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7979 csig = mono_metadata_signature_dup_full (image, sig);
7982 new_key = g_new (SignaturePointerPair,1);
7983 new_key->sig = csig;
7984 new_key->pointer = func;
7986 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7992 mono_marshal_set_wrapper_info (res, NULL);
7998 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8002 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8004 MonoMethodSignature *sig, *csig;
8005 MonoMethodBuilder *mb;
8010 MonoMethodPInvoke mpiinfo;
8011 MonoMethodPInvoke *piinfo = &mpiinfo;
8012 MonoMarshalSpec **mspecs;
8013 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8014 MonoImage *image = invoke->klass->image;
8017 // FIXME: include UnmanagedFunctionPointerAttribute info
8020 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8022 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8024 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8027 memset (&mpiinfo, 0, sizeof (mpiinfo));
8028 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8030 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8031 mono_method_get_marshal_info (invoke, mspecs);
8032 /* Freed below so don't alloc from mempool */
8033 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8036 name = g_strdup_printf ("wrapper_aot_native");
8037 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8038 mb->method->save_lmf = 1;
8041 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8044 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8045 info->d.managed_to_native.method = invoke;
8047 g_assert (!sig->hasthis);
8048 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8050 res = mono_mb_create_and_cache_full (cache, invoke,
8051 mb, csig, csig->param_count + 16,
8055 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8057 mono_metadata_free_marshal_spec (mspecs [i]);
8065 * mono_marshal_emit_managed_wrapper:
8067 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8068 * the delegate which wraps the managed method to be called. For closed delegates,
8069 * it could have fewer parameters than the method it wraps.
8070 * THIS_LOC is the memory location where the target of the delegate is stored.
8073 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8076 MonoMethodSignature *sig, *csig;
8082 /* we first do all conversions */
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 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8098 if (!sig->ret->byref) {
8099 switch (sig->ret->type) {
8100 case MONO_TYPE_STRING:
8101 csig->ret = &mono_defaults.int_class->byval_arg;
8108 MonoMethodSignature *sig, *csig;
8109 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8110 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8111 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8112 gboolean closed = FALSE;
8117 /* allocate local 0 (pointer) src_ptr */
8118 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8119 /* allocate local 1 (pointer) dst_ptr */
8120 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8121 /* allocate local 2 (boolean) delete_old */
8122 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8124 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8125 /* Closed delegate */
8126 g_assert (sig->param_count == invoke_sig->param_count + 1);
8128 /* Use a new signature without the first argument */
8129 sig = mono_metadata_signature_dup (sig);
8130 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8131 sig->param_count --;
8134 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8135 /* allocate local 3 to store the return value */
8136 mono_mb_add_local (mb, sig->ret);
8139 if (MONO_TYPE_ISSTRUCT (sig->ret))
8140 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8142 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8143 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8145 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8146 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8151 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8152 * mono_threads_attach_coop ();
8156 * ret = method (...);
8157 * } catch (Exception e) {
8158 * ex = mono_gchandle_new (e, false);
8160 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8161 * mono_threads_detach_coop ();
8164 * mono_marshal_ftnptr_eh_callback (ex);
8170 clauses = g_new0 (MonoExceptionClause, 2);
8172 clause_catch = &clauses [0];
8173 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8174 clause_catch->data.catch_class = mono_defaults.exception_class;
8176 clause_finally = &clauses [1];
8177 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8179 mono_mb_emit_icon (mb, 0);
8180 mono_mb_emit_stloc (mb, 2);
8182 mono_mb_emit_icon (mb, -1);
8183 mono_mb_emit_byte (mb, CEE_CONV_U4);
8184 mono_mb_emit_stloc (mb, ex_local);
8187 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8189 if (!mono_threads_is_coop_enabled ()) {
8190 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8191 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8193 /* mono_threads_attach_coop (); */
8194 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8195 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8196 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8197 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8198 mono_mb_emit_stloc (mb, attach_cookie_local);
8201 /* <interrupt check> */
8202 emit_thread_interrupt_checkpoint (mb);
8204 /* we first do all conversions */
8205 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8206 for (i = 0; i < sig->param_count; i ++) {
8207 MonoType *t = sig->params [i];
8210 case MONO_TYPE_OBJECT:
8211 case MONO_TYPE_CLASS:
8212 case MONO_TYPE_VALUETYPE:
8213 case MONO_TYPE_ARRAY:
8214 case MONO_TYPE_SZARRAY:
8215 case MONO_TYPE_STRING:
8216 case MONO_TYPE_BOOLEAN:
8217 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8227 if (target_handle) {
8228 mono_mb_emit_icon (mb, (gint32)target_handle);
8229 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8232 g_assert_not_reached ();
8234 } else if (closed) {
8235 mono_mb_emit_icon (mb, (gint32)target_handle);
8236 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8239 for (i = 0; i < sig->param_count; i++) {
8240 MonoType *t = sig->params [i];
8242 if (tmp_locals [i]) {
8244 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8246 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8249 mono_mb_emit_ldarg (mb, i);
8252 /* ret = method (...) */
8253 mono_mb_emit_managed_call (mb, method, NULL);
8255 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8256 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8257 mono_class_init (klass);
8258 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8259 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8260 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8261 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8262 mono_mb_emit_stloc (mb, m->vtaddr_var);
8266 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8267 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8268 } else if (!sig->ret->byref) {
8269 switch (sig->ret->type) {
8270 case MONO_TYPE_VOID:
8272 case MONO_TYPE_BOOLEAN:
8275 case MONO_TYPE_CHAR:
8287 case MONO_TYPE_OBJECT:
8288 mono_mb_emit_stloc (mb, 3);
8290 case MONO_TYPE_STRING:
8291 csig->ret = &mono_defaults.int_class->byval_arg;
8292 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8294 case MONO_TYPE_VALUETYPE:
8295 case MONO_TYPE_CLASS:
8296 case MONO_TYPE_SZARRAY:
8297 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8300 g_warning ("return type 0x%02x unknown", sig->ret->type);
8301 g_assert_not_reached ();
8304 mono_mb_emit_stloc (mb, 3);
8307 /* Convert byref arguments back */
8308 for (i = 0; i < sig->param_count; i ++) {
8309 MonoType *t = sig->params [i];
8310 MonoMarshalSpec *spec = mspecs [i + 1];
8312 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8313 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8315 else if (t->byref) {
8317 case MONO_TYPE_CLASS:
8318 case MONO_TYPE_VALUETYPE:
8319 case MONO_TYPE_OBJECT:
8320 case MONO_TYPE_STRING:
8321 case MONO_TYPE_BOOLEAN:
8322 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8328 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8329 /* The [Out] information is encoded in the delegate signature */
8331 case MONO_TYPE_SZARRAY:
8332 case MONO_TYPE_CLASS:
8333 case MONO_TYPE_VALUETYPE:
8334 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8337 g_assert_not_reached ();
8342 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8346 /* catch (Exception e) { */
8347 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8348 clause_catch->handler_offset = mono_mb_get_label (mb);
8350 mono_mb_emit_stloc (mb, e_local);
8352 /* ex = mono_gchandle_new (e, false); */
8353 mono_mb_emit_ldloc (mb, e_local);
8354 mono_mb_emit_icon (mb, 0);
8355 mono_mb_emit_icall (mb, mono_gchandle_new);
8356 mono_mb_emit_stloc (mb, ex_local);
8358 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8361 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8364 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8365 clause_finally->handler_offset = mono_mb_get_label (mb);
8367 if (!mono_threads_is_coop_enabled ()) {
8368 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8369 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8371 /* mono_threads_detach_coop (); */
8372 mono_mb_emit_ldloc (mb, attach_cookie_local);
8373 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8374 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8378 mono_mb_emit_ldloc (mb, ex_local);
8379 mono_mb_emit_icon (mb, -1);
8380 mono_mb_emit_byte (mb, CEE_CONV_U4);
8381 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8383 /* mono_marshal_ftnptr_eh_callback (ex) */
8384 mono_mb_emit_ldloc (mb, ex_local);
8385 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8388 mono_mb_patch_branch (mb, ex_m1_pos);
8390 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8392 /* } [endfinally] */
8393 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8395 mono_mb_patch_branch (mb, leave_try_pos);
8396 mono_mb_patch_branch (mb, leave_catch_pos);
8399 if (m->retobj_var) {
8400 mono_mb_emit_ldloc (mb, m->retobj_var);
8401 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8402 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8405 if (!MONO_TYPE_IS_VOID(sig->ret))
8406 mono_mb_emit_ldloc (mb, 3);
8407 mono_mb_emit_byte (mb, CEE_RET);
8410 mono_mb_set_clauses (mb, 2, clauses);
8418 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8420 MonoMethodSignature *sig;
8425 * Under windows, delegates passed to native code must use the STDCALL
8426 * calling convention.
8428 csig->call_convention = MONO_CALL_STDCALL;
8431 sig = mono_method_signature (method);
8433 /* Change default calling convention if needed */
8434 /* Why is this a modopt ? */
8435 if (sig->ret && sig->ret->num_mods) {
8436 for (i = 0; i < sig->ret->num_mods; ++i) {
8438 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8439 g_assert (mono_error_ok (&error));
8440 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8441 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8442 csig->call_convention = MONO_CALL_C;
8443 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8444 csig->call_convention = MONO_CALL_STDCALL;
8445 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8446 csig->call_convention = MONO_CALL_FASTCALL;
8447 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8448 csig->call_convention = MONO_CALL_THISCALL;
8455 * generates IL code to call managed methods from unmanaged code
8456 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8459 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8462 MonoMethodSignature *sig, *csig, *invoke_sig;
8463 MonoMethodBuilder *mb;
8464 MonoMethod *res, *invoke;
8465 MonoMarshalSpec **mspecs;
8466 MonoMethodPInvoke piinfo;
8469 EmitMarshalContext m;
8471 g_assert (method != NULL);
8472 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8475 * FIXME: Should cache the method+delegate type pair, since the same method
8476 * could be called with different delegates, thus different marshalling
8479 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8481 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8484 invoke = mono_get_delegate_invoke (delegate_klass);
8485 invoke_sig = mono_method_signature (invoke);
8487 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8488 mono_method_get_marshal_info (invoke, mspecs);
8490 sig = mono_method_signature (method);
8492 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8494 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8495 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8497 /* we copy the signature, so that we can modify it */
8499 /* Need to free this later */
8500 csig = mono_metadata_signature_dup (invoke_sig);
8502 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8506 memset (&m, 0, sizeof (m));
8512 m.image = method->klass->image;
8514 mono_marshal_set_callconv_from_modopt (invoke, csig);
8516 /* The attribute is only available in Net 2.0 */
8517 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8518 MonoCustomAttrInfo *cinfo;
8519 MonoCustomAttrEntry *attr;
8522 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8523 * contents of the attribute without constructing it, as that might not be
8524 * possible when running in cross-compiling mode.
8526 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8527 mono_error_assert_ok (&error);
8530 for (i = 0; i < cinfo->num_attrs; ++i) {
8531 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8532 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8533 attr = &cinfo->attrs [i];
8539 MonoArray *typed_args, *named_args;
8540 CattrNamedArg *arginfo;
8544 MonoBoolean set_last_error = 0;
8547 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8548 g_assert (mono_error_ok (&error));
8549 g_assert (mono_array_length (typed_args) == 1);
8552 o = mono_array_get (typed_args, MonoObject*, 0);
8553 call_conv = *(gint32*)mono_object_unbox (o);
8556 for (i = 0; i < mono_array_length (named_args); ++i) {
8557 CattrNamedArg *narg = &arginfo [i];
8559 o = mono_array_get (named_args, MonoObject*, i);
8561 g_assert (narg->field);
8562 if (!strcmp (narg->field->name, "CharSet")) {
8563 charset = *(gint32*)mono_object_unbox (o);
8564 } else if (!strcmp (narg->field->name, "SetLastError")) {
8565 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8566 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8567 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8568 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8569 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8571 g_assert_not_reached ();
8577 memset (&piinfo, 0, sizeof (piinfo));
8579 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8581 csig->call_convention = call_conv - 1;
8584 if (cinfo && !cinfo->cached)
8585 mono_custom_attrs_free (cinfo);
8588 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8590 if (!target_handle) {
8593 // FIXME: Associate it with the method+delegate_klass pair
8594 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8595 info->d.native_to_managed.method = method;
8596 info->d.native_to_managed.klass = delegate_klass;
8598 res = mono_mb_create_and_cache_full (cache, method,
8599 mb, csig, sig->param_count + 16,
8605 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8609 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8611 mono_metadata_free_marshal_spec (mspecs [i]);
8614 /* mono_method_print_code (res); */
8620 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8624 MonoMethodSignature *sig;
8625 MonoMethodBuilder *mb;
8630 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8632 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8635 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8636 MonoMethodSignature *csig;
8637 MonoMarshalSpec **mspecs;
8638 EmitMarshalContext m;
8640 sig = mono_method_signature (method);
8641 g_assert (!sig->hasthis);
8643 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8644 mono_method_get_marshal_info (method, mspecs);
8646 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8647 csig = mono_metadata_signature_dup_full (image, sig);
8651 memset (&m, 0, sizeof (m));
8659 mono_marshal_set_callconv_from_modopt (method, csig);
8661 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8663 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8668 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8671 for (i = sig->param_count; i >= 0; i--)
8673 mono_metadata_free_marshal_spec (mspecs [i]);
8676 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8677 mono_error_assert_ok (&error);
8678 return compiled_ptr;
8681 sig = mono_method_signature (method);
8682 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8684 param_count = sig->param_count + sig->hasthis;
8686 for (i = 0; i < param_count; i++)
8687 mono_mb_emit_ldarg (mb, i);
8689 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8690 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8692 mono_mb_emit_op (mb, CEE_CALL, method);
8693 mono_mb_emit_byte (mb, CEE_RET);
8698 method = mono_mb_create (mb, sig, param_count, NULL);
8701 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8702 mono_error_assert_ok (&error);
8703 return compiled_ptr;
8709 * The code directly following this is the cache hit, value positive branch
8711 * This function takes a new method builder with 0 locals and adds two locals
8712 * to create multiple out-branches and the fall through state of having the object
8713 * on the stack after a cache miss
8716 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8717 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8718 MonoMethodBuilder *mb)
8722 /* allocate local 0 (pointer) obj_vtable */
8723 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8724 /* allocate local 1 (pointer) cached_vtable */
8725 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8728 mono_mb_emit_ldarg (mb, obj_arg_position);
8729 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8731 /*obj_vtable = obj->vtable;*/
8732 mono_mb_emit_ldarg (mb, obj_arg_position);
8733 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8734 mono_mb_emit_byte (mb, CEE_LDIND_I);
8735 mono_mb_emit_stloc (mb, 0);
8737 /* cached_vtable = *cache*/
8738 mono_mb_emit_ldarg (mb, cache_arg_position);
8739 mono_mb_emit_byte (mb, CEE_LDIND_I);
8740 mono_mb_emit_stloc (mb, 1);
8742 mono_mb_emit_ldloc (mb, 1);
8743 mono_mb_emit_byte (mb, CEE_LDC_I4);
8744 mono_mb_emit_i4 (mb, ~0x1);
8745 mono_mb_emit_byte (mb, CEE_CONV_I);
8746 mono_mb_emit_byte (mb, CEE_AND);
8747 mono_mb_emit_ldloc (mb, 0);
8748 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8749 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8751 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8752 mono_mb_emit_ldloc (mb, 1);
8753 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8754 mono_mb_emit_byte (mb, CEE_CONV_U);
8755 mono_mb_emit_byte (mb, CEE_AND);
8756 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8757 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8760 mono_mb_patch_branch (mb, cache_miss_pos);
8763 mono_mb_emit_ldarg (mb, obj_arg_position);
8764 mono_mb_emit_ldarg (mb, class_arg_position);
8765 mono_mb_emit_ldarg (mb, cache_arg_position);
8766 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8769 #endif /* DISABLE_JIT */
8772 * This does the equivalent of mono_object_castclass_with_cache.
8775 mono_marshal_get_castclass_with_cache (void)
8777 static MonoMethod *cached;
8779 MonoMethodBuilder *mb;
8780 MonoMethodSignature *sig;
8781 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8784 const int obj_arg_position = 0;
8785 const int class_arg_position = 1;
8786 const int cache_arg_position = 2;
8791 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8792 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8793 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8794 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8795 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8796 sig->ret = &mono_defaults.object_class->byval_arg;
8800 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8801 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8802 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8805 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8806 mono_mb_emit_ldarg (mb, obj_arg_position);
8807 mono_mb_emit_byte (mb, CEE_RET);
8810 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8811 mono_mb_patch_branch (mb, invalid_cast_pos);
8812 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8815 mono_mb_patch_branch (mb, return_null_pos);
8816 mono_mb_emit_byte (mb, CEE_LDNULL);
8817 mono_mb_emit_byte (mb, CEE_RET);
8818 #endif /* DISABLE_JIT */
8820 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8821 res = mono_mb_create (mb, sig, 8, info);
8824 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8825 mono_free_method (res);
8826 mono_metadata_free_method_signature (sig);
8833 /* this is an icall */
8835 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8838 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8839 if (mono_error_set_pending_exception (&error))
8842 #ifndef DISABLE_REMOTING
8843 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8847 uintptr_t cache_update = (uintptr_t)obj->vtable;
8849 cache_update = cache_update | 0x1;
8851 *cache = cache_update;
8857 * This does the equivalent of mono_object_isinst_with_cache.
8860 mono_marshal_get_isinst_with_cache (void)
8862 static MonoMethod *cached;
8864 MonoMethodBuilder *mb;
8865 MonoMethodSignature *sig;
8866 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8869 const int obj_arg_position = 0;
8870 const int class_arg_position = 1;
8871 const int cache_arg_position = 2;
8876 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8877 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8879 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8881 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8883 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8884 sig->ret = &mono_defaults.object_class->byval_arg;
8888 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8889 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8890 // Return the object gotten via the slow path.
8891 mono_mb_emit_byte (mb, CEE_RET);
8894 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8895 mono_mb_patch_branch (mb, return_null_pos);
8896 mono_mb_emit_byte (mb, CEE_LDNULL);
8897 mono_mb_emit_byte (mb, CEE_RET);
8900 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8901 mono_mb_emit_ldarg (mb, obj_arg_position);
8902 mono_mb_emit_byte (mb, CEE_RET);
8905 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8906 res = mono_mb_create (mb, sig, 8, info);
8909 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8910 mono_free_method (res);
8911 mono_metadata_free_method_signature (sig);
8919 * mono_marshal_get_isinst:
8920 * @klass: the type of the field
8922 * This method generates a function which can be used to check if an object is
8923 * an instance of the given type, icluding the case where the object is a proxy.
8924 * The generated function has the following signature:
8925 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8928 mono_marshal_get_isinst (MonoClass *klass)
8930 static MonoMethodSignature *isint_sig = NULL;
8934 int pos_was_ok, pos_end;
8935 #ifndef DISABLE_REMOTING
8936 int pos_end2, pos_failed;
8939 MonoMethodBuilder *mb;
8941 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8942 if ((res = mono_marshal_find_in_cache (cache, klass)))
8946 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8947 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8948 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8949 isint_sig->pinvoke = 0;
8952 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8953 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8956 mb->method->save_lmf = 1;
8959 /* check if the object is a proxy that needs special cast */
8960 mono_mb_emit_ldarg (mb, 0);
8961 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8962 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8964 /* The result of MONO_CISINST can be:
8965 0) the type check succeeded
8966 1) the type check did not succeed
8967 2) a CanCastTo call is needed */
8968 #ifndef DISABLE_REMOTING
8969 mono_mb_emit_byte (mb, CEE_DUP);
8970 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8972 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8973 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8975 /* get the real proxy from the transparent proxy*/
8977 mono_mb_emit_ldarg (mb, 0);
8978 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8979 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8983 mono_mb_patch_branch (mb, pos_failed);
8984 mono_mb_emit_byte (mb, CEE_LDNULL);
8985 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8989 mono_mb_patch_branch (mb, pos_was_ok);
8990 mono_mb_emit_byte (mb, CEE_POP);
8991 mono_mb_emit_ldarg (mb, 0);
8995 mono_mb_patch_branch (mb, pos_end);
8996 mono_mb_patch_branch (mb, pos_end2);
8997 mono_mb_emit_byte (mb, CEE_RET);
8999 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9003 mono_mb_emit_byte (mb, CEE_LDNULL);
9004 pos_end = mono_mb_emit_branch (mb, CEE_BR);
9008 mono_mb_patch_branch (mb, pos_was_ok);
9009 mono_mb_emit_ldarg (mb, 0);
9013 mono_mb_patch_branch (mb, pos_end);
9014 mono_mb_emit_byte (mb, CEE_RET);
9015 #endif /* DISABLE_REMOTING */
9016 #endif /* DISABLE_JIT */
9018 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9019 info->d.proxy.klass = klass;
9020 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
9027 * mono_marshal_get_castclass:
9028 * @klass: the type of the field
9030 * This method generates a function which can be used to cast an object to
9031 * an instance of the given type, icluding the case where the object is a proxy.
9032 * The generated function has the following signature:
9033 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9036 mono_marshal_get_castclass (MonoClass *klass)
9038 static MonoMethodSignature *castclass_sig = NULL;
9041 #ifndef DISABLE_REMOTING
9042 int pos_was_ok, pos_was_ok2;
9045 MonoMethodBuilder *mb;
9048 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9049 if ((res = mono_marshal_find_in_cache (cache, klass)))
9052 if (!castclass_sig) {
9053 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9054 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9055 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9056 castclass_sig->pinvoke = 0;
9059 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9060 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9063 mb->method->save_lmf = 1;
9066 /* check if the object is a proxy that needs special cast */
9067 mono_mb_emit_ldarg (mb, 0);
9068 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9069 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9071 /* The result of MONO_CCASTCLASS can be:
9072 0) the cast is valid
9073 1) cast of unknown proxy type
9074 or an exception if the cast is is invalid
9076 #ifndef DISABLE_REMOTING
9077 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9079 /* get the real proxy from the transparent proxy*/
9081 mono_mb_emit_ldarg (mb, 0);
9082 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9083 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9086 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9089 mono_mb_patch_branch (mb, pos_was_ok);
9090 mono_mb_patch_branch (mb, pos_was_ok2);
9092 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
9093 mono_mb_emit_byte (mb, CEE_POP);
9094 #endif /* DISABLE_REMOTING */
9096 mono_mb_emit_ldarg (mb, 0);
9099 mono_mb_emit_byte (mb, CEE_RET);
9100 #endif /* DISABLE_JIT */
9102 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9104 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
9112 * mono_marshal_get_struct_to_ptr:
9115 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9118 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9120 MonoMethodBuilder *mb;
9121 static MonoMethod *stoptr = NULL;
9125 g_assert (klass != NULL);
9127 mono_marshal_load_type_info (klass);
9129 if (klass->marshal_info->str_to_ptr)
9130 return klass->marshal_info->str_to_ptr;
9133 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9136 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9139 if (klass->blittable) {
9140 mono_mb_emit_byte (mb, CEE_LDARG_1);
9141 mono_mb_emit_byte (mb, CEE_LDARG_0);
9142 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9143 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9144 mono_mb_emit_byte (mb, CEE_PREFIX1);
9145 mono_mb_emit_byte (mb, CEE_CPBLK);
9148 /* allocate local 0 (pointer) src_ptr */
9149 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9150 /* allocate local 1 (pointer) dst_ptr */
9151 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9152 /* allocate local 2 (boolean) delete_old */
9153 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9154 mono_mb_emit_byte (mb, CEE_LDARG_2);
9155 mono_mb_emit_stloc (mb, 2);
9157 /* initialize src_ptr to point to the start of object data */
9158 mono_mb_emit_byte (mb, CEE_LDARG_0);
9159 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9160 mono_mb_emit_stloc (mb, 0);
9162 /* initialize dst_ptr */
9163 mono_mb_emit_byte (mb, CEE_LDARG_1);
9164 mono_mb_emit_stloc (mb, 1);
9166 emit_struct_conv (mb, klass, FALSE);
9169 mono_mb_emit_byte (mb, CEE_RET);
9171 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9172 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9175 mono_marshal_lock ();
9176 if (!klass->marshal_info->str_to_ptr)
9177 klass->marshal_info->str_to_ptr = res;
9179 res = klass->marshal_info->str_to_ptr;
9180 mono_marshal_unlock ();
9185 * mono_marshal_get_ptr_to_struct:
9188 * generates IL code for PtrToStructure (IntPtr src, object structure)
9191 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9193 MonoMethodBuilder *mb;
9194 static MonoMethodSignature *ptostr = NULL;
9198 g_assert (klass != NULL);
9200 mono_marshal_load_type_info (klass);
9202 if (klass->marshal_info->ptr_to_str)
9203 return klass->marshal_info->ptr_to_str;
9206 MonoMethodSignature *sig;
9208 /* Create the signature corresponding to
9209 static void PtrToStructure (IntPtr ptr, object structure);
9210 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9211 sig = mono_create_icall_signature ("void ptr object");
9212 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9214 mono_memory_barrier ();
9218 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9221 if (klass->blittable) {
9222 mono_mb_emit_byte (mb, CEE_LDARG_1);
9223 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9224 mono_mb_emit_byte (mb, CEE_LDARG_0);
9225 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9226 mono_mb_emit_byte (mb, CEE_PREFIX1);
9227 mono_mb_emit_byte (mb, CEE_CPBLK);
9230 /* allocate local 0 (pointer) src_ptr */
9231 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9232 /* allocate local 1 (pointer) dst_ptr */
9233 mono_mb_add_local (mb, &klass->this_arg);
9235 /* initialize src_ptr to point to the start of object data */
9236 mono_mb_emit_byte (mb, CEE_LDARG_0);
9237 mono_mb_emit_stloc (mb, 0);
9239 /* initialize dst_ptr */
9240 mono_mb_emit_byte (mb, CEE_LDARG_1);
9241 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9242 mono_mb_emit_stloc (mb, 1);
9244 emit_struct_conv (mb, klass, TRUE);
9247 mono_mb_emit_byte (mb, CEE_RET);
9249 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9250 res = mono_mb_create (mb, ptostr, 0, info);
9253 mono_marshal_lock ();
9254 if (!klass->marshal_info->ptr_to_str)
9255 klass->marshal_info->ptr_to_str = res;
9257 res = klass->marshal_info->ptr_to_str;
9258 mono_marshal_unlock ();
9263 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9264 * This is used to avoid infinite recursion since it is hard to determine where to
9265 * replace a method with its synchronized wrapper, and where not.
9266 * The runtime should execute METHOD instead of the wrapper.
9269 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9271 MonoMethodBuilder *mb;
9273 MonoMethodSignature *sig;
9275 MonoGenericContext *ctx = NULL;
9276 MonoGenericContainer *container = NULL;
9278 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9279 ctx = &((MonoMethodInflated*)method)->context;
9280 method = ((MonoMethodInflated*)method)->declaring;
9281 container = mono_method_get_generic_container (method);
9283 container = method->klass->generic_container;
9284 g_assert (container);
9287 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9289 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9290 mono_mb_emit_byte (mb, CEE_RET);
9292 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9294 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9295 info->d.synchronized_inner.method = method;
9296 res = mono_mb_create (mb, sig, 0, info);
9300 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9301 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9307 * generates IL code for the synchronized wrapper: the generated method
9308 * calls METHOD while locking 'this' or the parent type.
9311 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9313 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9314 MonoMethodSignature *sig;
9315 MonoExceptionClause *clause;
9316 MonoMethodBuilder *mb;
9320 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9321 MonoGenericContext *ctx = NULL;
9322 MonoMethod *orig_method = NULL;
9323 MonoGenericContainer *container = NULL;
9327 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9330 /* FIXME: Support generic methods too */
9331 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9332 orig_method = method;
9333 ctx = &((MonoMethodInflated*)method)->context;
9334 method = ((MonoMethodInflated*)method)->declaring;
9335 container = mono_method_get_generic_container (method);
9337 container = method->klass->generic_container;
9338 g_assert (container);
9345 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9346 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9350 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9351 if ((res = mono_marshal_find_in_cache (cache, method)))
9355 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9358 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9360 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9361 info->d.synchronized.method = method;
9364 mb->skip_visibility = 1;
9366 if (!MONO_TYPE_IS_VOID (sig->ret))
9367 ret_local = mono_mb_add_local (mb, sig->ret);
9370 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9371 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9372 mono_class_set_type_load_failure (method->klass, "");
9374 /* This will throw the type load exception when the wrapper is compiled */
9375 mono_mb_emit_byte (mb, CEE_LDNULL);
9376 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9377 mono_mb_emit_byte (mb, CEE_POP);
9379 if (!MONO_TYPE_IS_VOID (sig->ret))
9380 mono_mb_emit_ldloc (mb, ret_local);
9381 mono_mb_emit_byte (mb, CEE_RET);
9384 res = mono_mb_create_and_cache_full (cache, method,
9385 mb, sig, sig->param_count + 16, info, NULL);
9393 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9394 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9396 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9397 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9400 mono_marshal_lock ();
9402 if (!enter_method) {
9403 MonoMethodDesc *desc;
9405 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9406 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9407 g_assert (enter_method);
9408 mono_method_desc_free (desc);
9410 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9411 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9412 g_assert (exit_method);
9413 mono_method_desc_free (desc);
9415 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9416 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9417 g_assert (gettypefromhandle_method);
9418 mono_method_desc_free (desc);
9421 mono_marshal_unlock ();
9424 /* Push this or the type object */
9425 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9426 /* We have special handling for this in the JIT */
9427 int index = mono_mb_add_data (mb, method->klass);
9428 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9429 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9430 mono_mb_emit_i4 (mb, index);
9432 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9435 mono_mb_emit_ldarg (mb, 0);
9436 mono_mb_emit_stloc (mb, this_local);
9438 /* Call Monitor::Enter() */
9439 mono_mb_emit_ldloc (mb, this_local);
9440 mono_mb_emit_ldloc_addr (mb, taken_local);
9441 mono_mb_emit_managed_call (mb, enter_method, NULL);
9443 clause->try_offset = mono_mb_get_label (mb);
9445 /* Call the method */
9447 mono_mb_emit_ldarg (mb, 0);
9448 for (i = 0; i < sig->param_count; i++)
9449 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9453 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9454 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9456 mono_mb_emit_managed_call (mb, method, NULL);
9459 if (!MONO_TYPE_IS_VOID (sig->ret))
9460 mono_mb_emit_stloc (mb, ret_local);
9462 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9464 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9465 clause->handler_offset = mono_mb_get_label (mb);
9467 /* Call Monitor::Exit() if needed */
9468 mono_mb_emit_ldloc (mb, taken_local);
9469 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9470 mono_mb_emit_ldloc (mb, this_local);
9471 mono_mb_emit_managed_call (mb, exit_method, NULL);
9472 mono_mb_patch_branch (mb, pos2);
9473 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9475 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9477 mono_mb_patch_branch (mb, pos);
9478 if (!MONO_TYPE_IS_VOID (sig->ret))
9479 mono_mb_emit_ldloc (mb, ret_local);
9480 mono_mb_emit_byte (mb, CEE_RET);
9482 mono_mb_set_clauses (mb, 1, clause);
9487 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9488 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9490 res = mono_mb_create_and_cache_full (cache, method,
9491 mb, sig, sig->param_count + 16, info, NULL);
9500 * the returned method calls 'method' unboxing the this argument
9503 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9505 MonoMethodSignature *sig = mono_method_signature (method);
9507 MonoMethodBuilder *mb;
9512 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9514 if ((res = mono_marshal_find_in_cache (cache, method)))
9517 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9519 g_assert (sig->hasthis);
9522 mono_mb_emit_ldarg (mb, 0);
9523 mono_mb_emit_icon (mb, sizeof (MonoObject));
9524 mono_mb_emit_byte (mb, CEE_ADD);
9525 for (i = 0; i < sig->param_count; ++i)
9526 mono_mb_emit_ldarg (mb, i + 1);
9527 mono_mb_emit_managed_call (mb, method, NULL);
9528 mono_mb_emit_byte (mb, CEE_RET);
9531 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9532 info->d.unbox.method = method;
9534 res = mono_mb_create_and_cache_full (cache, method,
9535 mb, sig, sig->param_count + 16, info, NULL);
9538 /* mono_method_print_code (res); */
9544 STELEMREF_OBJECT, /*no check at all*/
9545 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9546 STELEMREF_CLASS, /*only the klass->parents check*/
9547 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9548 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9549 STELEMREF_KIND_COUNT
9552 static const char *strelemref_wrapper_name[] = {
9553 "object", "sealed_class", "class", "interface", "complex"
9557 is_monomorphic_array (MonoClass *klass)
9559 MonoClass *element_class;
9560 if (klass->rank != 1)
9563 element_class = klass->element_class;
9564 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9568 get_virtual_stelemref_kind (MonoClass *element_class)
9570 if (element_class == mono_defaults.object_class)
9571 return STELEMREF_OBJECT;
9572 if (is_monomorphic_array (element_class))
9573 return STELEMREF_SEALED_CLASS;
9574 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9575 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9576 #ifdef COMPRESSED_INTERFACE_BITMAP
9577 return STELEMREF_COMPLEX;
9579 return STELEMREF_INTERFACE;
9581 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9582 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9583 return STELEMREF_COMPLEX;
9584 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9585 return STELEMREF_SEALED_CLASS;
9586 return STELEMREF_CLASS;
9592 load_array_element_address (MonoMethodBuilder *mb)
9594 mono_mb_emit_ldarg (mb, 0);
9595 mono_mb_emit_ldarg (mb, 1);
9596 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9600 load_array_class (MonoMethodBuilder *mb, int aklass)
9602 mono_mb_emit_ldarg (mb, 0);
9603 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9604 mono_mb_emit_byte (mb, CEE_LDIND_I);
9605 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9606 mono_mb_emit_byte (mb, CEE_LDIND_I);
9607 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9608 mono_mb_emit_byte (mb, CEE_LDIND_I);
9609 mono_mb_emit_stloc (mb, aklass);
9613 load_value_class (MonoMethodBuilder *mb, int vklass)
9615 mono_mb_emit_ldarg (mb, 2);
9616 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9617 mono_mb_emit_byte (mb, CEE_LDIND_I);
9618 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9619 mono_mb_emit_byte (mb, CEE_LDIND_I);
9620 mono_mb_emit_stloc (mb, vklass);
9626 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9628 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9629 printf ("slow vstore of %s\n", name);
9636 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9637 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9638 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9639 * - Add a case for arrays of arrays.
9642 get_virtual_stelemref_wrapper (int kind)
9644 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9645 static MonoMethodSignature *signature;
9646 MonoMethodBuilder *mb;
9649 const char *param_names [16];
9650 guint32 b1, b2, b3, b4;
9651 int aklass, vklass, vtable, uiid;
9652 int array_slot_addr;
9655 if (cached_methods [kind])
9656 return cached_methods [kind];
9658 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9659 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9663 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9665 /* void this::stelemref (size_t idx, void* value) */
9666 sig->ret = &mono_defaults.void_class->byval_arg;
9667 sig->hasthis = TRUE;
9668 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9669 sig->params [1] = &mono_defaults.object_class->byval_arg;
9674 param_names [0] = "index";
9675 param_names [1] = "value";
9676 mono_mb_set_param_names (mb, param_names);
9678 /*For now simply call plain old stelemref*/
9680 case STELEMREF_OBJECT:
9681 /* ldelema (implicit bound check) */
9682 load_array_element_address (mb);
9684 mono_mb_emit_ldarg (mb, 2);
9685 mono_mb_emit_byte (mb, CEE_STIND_REF);
9686 mono_mb_emit_byte (mb, CEE_RET);
9689 case STELEMREF_COMPLEX:
9691 <ldelema (bound check)>
9694 if (!mono_object_isinst (value, aklass))
9698 *array_slot_addr = value;
9701 throw new ArrayTypeMismatchException ();
9704 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9705 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9709 /*Use this to debug/record stores that are going thru the slow path*/
9710 MonoMethodSignature *csig;
9711 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9712 csig->ret = &mono_defaults.void_class->byval_arg;
9713 csig->params [0] = &mono_defaults.object_class->byval_arg;
9714 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9715 csig->params [2] = &mono_defaults.object_class->byval_arg;
9716 mono_mb_emit_ldarg (mb, 0);
9717 mono_mb_emit_ldarg (mb, 1);
9718 mono_mb_emit_ldarg (mb, 2);
9719 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9723 /* ldelema (implicit bound check) */
9724 load_array_element_address (mb);
9725 mono_mb_emit_stloc (mb, array_slot_addr);
9727 /* if (!value) goto do_store */
9728 mono_mb_emit_ldarg (mb, 2);
9729 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9731 /* aklass = array->vtable->klass->element_class */
9732 load_array_class (mb, aklass);
9734 /*if (mono_object_isinst (value, aklass)) */
9735 mono_mb_emit_ldarg (mb, 2);
9736 mono_mb_emit_ldloc (mb, aklass);
9737 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9738 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9741 mono_mb_patch_branch (mb, b1);
9742 mono_mb_emit_ldloc (mb, array_slot_addr);
9743 mono_mb_emit_ldarg (mb, 2);
9744 mono_mb_emit_byte (mb, CEE_STIND_REF);
9745 mono_mb_emit_byte (mb, CEE_RET);
9748 mono_mb_patch_branch (mb, b2);
9750 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9753 case STELEMREF_SEALED_CLASS:
9755 <ldelema (bound check)>
9759 aklass = array->vtable->klass->element_class;
9760 vklass = value->vtable->klass;
9762 if (vklass != aklass)
9766 *array_slot_addr = value;
9769 throw new ArrayTypeMismatchException ();
9771 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9772 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9773 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9776 /* ldelema (implicit bound check) */
9777 load_array_element_address (mb);
9778 mono_mb_emit_stloc (mb, array_slot_addr);
9780 /* if (!value) goto do_store */
9781 mono_mb_emit_ldarg (mb, 2);
9782 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9784 /* aklass = array->vtable->klass->element_class */
9785 load_array_class (mb, aklass);
9787 /* vklass = value->vtable->klass */
9788 load_value_class (mb, vklass);
9790 /*if (vklass != aklass) goto do_exception; */
9791 mono_mb_emit_ldloc (mb, aklass);
9792 mono_mb_emit_ldloc (mb, vklass);
9793 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9796 mono_mb_patch_branch (mb, b1);
9797 mono_mb_emit_ldloc (mb, array_slot_addr);
9798 mono_mb_emit_ldarg (mb, 2);
9799 mono_mb_emit_byte (mb, CEE_STIND_REF);
9800 mono_mb_emit_byte (mb, CEE_RET);
9803 mono_mb_patch_branch (mb, b2);
9804 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9807 case STELEMREF_CLASS:
9810 <ldelema (bound check)>
9814 aklass = array->vtable->klass->element_class;
9815 vklass = value->vtable->klass;
9817 if (vklass->idepth < aklass->idepth)
9820 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9824 *array_slot_addr = value;
9828 throw new ArrayTypeMismatchException ();
9830 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9831 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9832 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9834 /* ldelema (implicit bound check) */
9835 load_array_element_address (mb);
9836 mono_mb_emit_stloc (mb, array_slot_addr);
9838 /* if (!value) goto do_store */
9839 mono_mb_emit_ldarg (mb, 2);
9840 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9842 /* aklass = array->vtable->klass->element_class */
9843 load_array_class (mb, aklass);
9845 /* vklass = value->vtable->klass */
9846 load_value_class (mb, vklass);
9848 /*if (mono_object_isinst (value, aklass)) */
9849 mono_mb_emit_ldarg (mb, 2);
9850 mono_mb_emit_ldloc (mb, aklass);
9851 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9852 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9854 /* if (vklass->idepth < aklass->idepth) goto failue */
9855 mono_mb_emit_ldloc (mb, vklass);
9856 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9857 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9859 mono_mb_emit_ldloc (mb, aklass);
9860 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9861 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9863 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9865 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9866 mono_mb_emit_ldloc (mb, vklass);
9867 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9868 mono_mb_emit_byte (mb, CEE_LDIND_I);
9870 mono_mb_emit_ldloc (mb, aklass);
9871 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9872 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9873 mono_mb_emit_icon (mb, 1);
9874 mono_mb_emit_byte (mb, CEE_SUB);
9875 mono_mb_emit_icon (mb, sizeof (void*));
9876 mono_mb_emit_byte (mb, CEE_MUL);
9877 mono_mb_emit_byte (mb, CEE_ADD);
9878 mono_mb_emit_byte (mb, CEE_LDIND_I);
9880 mono_mb_emit_ldloc (mb, aklass);
9881 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9884 mono_mb_patch_branch (mb, b1);
9885 mono_mb_emit_ldloc (mb, array_slot_addr);
9886 mono_mb_emit_ldarg (mb, 2);
9887 mono_mb_emit_byte (mb, CEE_STIND_REF);
9888 mono_mb_emit_byte (mb, CEE_RET);
9891 mono_mb_patch_branch (mb, b2);
9892 mono_mb_patch_branch (mb, b3);
9893 mono_mb_patch_branch (mb, b4);
9895 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9898 case STELEMREF_INTERFACE:
9905 klass = array->obj.vtable->klass->element_class;
9907 uiid = klass->interface_id;
9908 if (uiid > vt->max_interface_id)
9910 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9913 mono_array_setref (array, index, value);
9916 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9918 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9919 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9920 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9921 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9923 /* ldelema (implicit bound check) */
9924 load_array_element_address (mb);
9925 mono_mb_emit_stloc (mb, array_slot_addr);
9927 /* if (!value) goto do_store */
9928 mono_mb_emit_ldarg (mb, 2);
9929 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9931 /* klass = array->vtable->klass->element_class */
9932 load_array_class (mb, aklass);
9934 /* vt = value->vtable */
9935 mono_mb_emit_ldarg (mb, 2);
9936 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9937 mono_mb_emit_byte (mb, CEE_LDIND_I);
9938 mono_mb_emit_stloc (mb, vtable);
9940 /* uiid = klass->interface_id; */
9941 mono_mb_emit_ldloc (mb, aklass);
9942 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9943 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9944 mono_mb_emit_stloc (mb, uiid);
9946 /*if (uiid > vt->max_interface_id)*/
9947 mono_mb_emit_ldloc (mb, uiid);
9948 mono_mb_emit_ldloc (mb, vtable);
9949 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9950 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9951 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9953 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9955 /*vt->interface_bitmap*/
9956 mono_mb_emit_ldloc (mb, vtable);
9957 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9958 mono_mb_emit_byte (mb, CEE_LDIND_I);
9961 mono_mb_emit_ldloc (mb, uiid);
9962 mono_mb_emit_icon (mb, 3);
9963 mono_mb_emit_byte (mb, CEE_SHR_UN);
9965 /*vt->interface_bitmap [(uiid) >> 3]*/
9966 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9967 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9969 /*(1 << ((uiid)&7)))*/
9970 mono_mb_emit_icon (mb, 1);
9971 mono_mb_emit_ldloc (mb, uiid);
9972 mono_mb_emit_icon (mb, 7);
9973 mono_mb_emit_byte (mb, CEE_AND);
9974 mono_mb_emit_byte (mb, CEE_SHL);
9976 /*bitwise and the whole thing*/
9977 mono_mb_emit_byte (mb, CEE_AND);
9978 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9981 mono_mb_patch_branch (mb, b1);
9982 mono_mb_emit_ldloc (mb, array_slot_addr);
9983 mono_mb_emit_ldarg (mb, 2);
9984 mono_mb_emit_byte (mb, CEE_STIND_REF);
9985 mono_mb_emit_byte (mb, CEE_RET);
9988 mono_mb_patch_branch (mb, b2);
9989 mono_mb_patch_branch (mb, b3);
9990 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9994 mono_mb_emit_ldarg (mb, 0);
9995 mono_mb_emit_ldarg (mb, 1);
9996 mono_mb_emit_ldarg (mb, 2);
9997 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9998 mono_mb_emit_byte (mb, CEE_RET);
10001 #endif /* DISABLE_JIT */
10002 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10003 info->d.virtual_stelemref.kind = kind;
10004 res = mono_mb_create (mb, signature, 4, info);
10005 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10007 mono_marshal_lock ();
10008 if (!cached_methods [kind]) {
10009 cached_methods [kind] = res;
10010 mono_marshal_unlock ();
10012 mono_marshal_unlock ();
10013 mono_free_method (res);
10017 return cached_methods [kind];
10021 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10025 g_assert (array_class->rank == 1);
10026 kind = get_virtual_stelemref_kind (array_class->element_class);
10028 return get_virtual_stelemref_wrapper (kind);
10032 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10037 *nwrappers = STELEMREF_KIND_COUNT;
10038 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10039 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10040 res [i] = get_virtual_stelemref_wrapper (i);
10045 mono_marshal_get_stelemref (void)
10047 static MonoMethod* ret = NULL;
10048 MonoMethodSignature *sig;
10049 MonoMethodBuilder *mb;
10052 guint32 b1, b2, b3, b4;
10054 int aklass, vklass;
10055 int array_slot_addr;
10060 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10063 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10065 /* void stelemref (void* array, int idx, void* value) */
10066 sig->ret = &mono_defaults.void_class->byval_arg;
10067 sig->params [0] = &mono_defaults.object_class->byval_arg;
10068 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10069 sig->params [2] = &mono_defaults.object_class->byval_arg;
10071 #ifndef DISABLE_JIT
10072 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10073 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10074 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10078 <ldelema (bound check)>
10082 aklass = array->vtable->klass->element_class;
10083 vklass = value->vtable->klass;
10085 if (vklass->idepth < aklass->idepth)
10088 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10092 *array_slot_addr = value;
10096 if (mono_object_isinst (value, aklass))
10099 throw new ArrayTypeMismatchException ();
10102 /* ldelema (implicit bound check) */
10103 mono_mb_emit_ldarg (mb, 0);
10104 mono_mb_emit_ldarg (mb, 1);
10105 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10106 mono_mb_emit_stloc (mb, array_slot_addr);
10108 /* if (!value) goto do_store */
10109 mono_mb_emit_ldarg (mb, 2);
10110 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10112 /* aklass = array->vtable->klass->element_class */
10113 mono_mb_emit_ldarg (mb, 0);
10114 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10115 mono_mb_emit_byte (mb, CEE_LDIND_I);
10116 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10117 mono_mb_emit_byte (mb, CEE_LDIND_I);
10118 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10119 mono_mb_emit_byte (mb, CEE_LDIND_I);
10120 mono_mb_emit_stloc (mb, aklass);
10122 /* vklass = value->vtable->klass */
10123 mono_mb_emit_ldarg (mb, 2);
10124 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10125 mono_mb_emit_byte (mb, CEE_LDIND_I);
10126 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10127 mono_mb_emit_byte (mb, CEE_LDIND_I);
10128 mono_mb_emit_stloc (mb, vklass);
10130 /* if (vklass->idepth < aklass->idepth) goto failue */
10131 mono_mb_emit_ldloc (mb, vklass);
10132 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10133 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10135 mono_mb_emit_ldloc (mb, aklass);
10136 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10137 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10139 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10141 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10142 mono_mb_emit_ldloc (mb, vklass);
10143 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10144 mono_mb_emit_byte (mb, CEE_LDIND_I);
10146 mono_mb_emit_ldloc (mb, aklass);
10147 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10148 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10149 mono_mb_emit_icon (mb, 1);
10150 mono_mb_emit_byte (mb, CEE_SUB);
10151 mono_mb_emit_icon (mb, sizeof (void*));
10152 mono_mb_emit_byte (mb, CEE_MUL);
10153 mono_mb_emit_byte (mb, CEE_ADD);
10154 mono_mb_emit_byte (mb, CEE_LDIND_I);
10156 mono_mb_emit_ldloc (mb, aklass);
10158 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10160 copy_pos = mono_mb_get_label (mb);
10162 mono_mb_patch_branch (mb, b1);
10163 mono_mb_emit_ldloc (mb, array_slot_addr);
10164 mono_mb_emit_ldarg (mb, 2);
10165 mono_mb_emit_byte (mb, CEE_STIND_REF);
10167 mono_mb_emit_byte (mb, CEE_RET);
10170 mono_mb_patch_branch (mb, b2);
10171 mono_mb_patch_branch (mb, b3);
10173 mono_mb_emit_ldarg (mb, 2);
10174 mono_mb_emit_ldloc (mb, aklass);
10175 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10177 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10178 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10179 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10181 mono_mb_emit_byte (mb, CEE_RET);
10183 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10184 ret = mono_mb_create (mb, sig, 4, info);
10191 * mono_marshal_get_gsharedvt_in_wrapper:
10193 * This wrapper handles calls from normal code to gsharedvt code.
10196 mono_marshal_get_gsharedvt_in_wrapper (void)
10198 static MonoMethod* ret = NULL;
10199 MonoMethodSignature *sig;
10200 MonoMethodBuilder *mb;
10206 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10208 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10209 sig->ret = &mono_defaults.void_class->byval_arg;
10211 #ifndef DISABLE_JIT
10213 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10215 mono_mb_emit_byte (mb, CEE_RET);
10217 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10218 ret = mono_mb_create (mb, sig, 4, info);
10225 * mono_marshal_get_gsharedvt_out_wrapper:
10227 * This wrapper handles calls from gsharedvt code to normal code.
10230 mono_marshal_get_gsharedvt_out_wrapper (void)
10232 static MonoMethod* ret = NULL;
10233 MonoMethodSignature *sig;
10234 MonoMethodBuilder *mb;
10240 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10242 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10243 sig->ret = &mono_defaults.void_class->byval_arg;
10245 #ifndef DISABLE_JIT
10247 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10249 mono_mb_emit_byte (mb, CEE_RET);
10251 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10252 ret = mono_mb_create (mb, sig, 4, info);
10261 MonoMethod *method;
10264 /* LOCKING: vars accessed under the marshal lock */
10265 static ArrayElemAddr *elem_addr_cache = NULL;
10266 static int elem_addr_cache_size = 0;
10267 static int elem_addr_cache_next = 0;
10270 * mono_marshal_get_array_address:
10271 * @rank: rank of the array type
10272 * @elem_size: size in bytes of an element of an array.
10274 * Returns a MonoMethod that implements the code to get the address
10275 * of an element in a multi-dimenasional array of @rank dimensions.
10276 * The returned method takes an array as the first argument and then
10277 * @rank indexes for the @rank dimensions.
10278 * If ELEM_SIZE is 0, read the array size from the array object.
10281 mono_marshal_get_array_address (int rank, int elem_size)
10284 MonoMethodBuilder *mb;
10285 MonoMethodSignature *sig;
10288 int i, bounds, ind, realidx;
10289 int branch_pos, *branch_positions;
10293 mono_marshal_lock ();
10294 for (i = 0; i < elem_addr_cache_next; ++i) {
10295 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10296 ret = elem_addr_cache [i].method;
10300 mono_marshal_unlock ();
10304 branch_positions = g_new0 (int, rank);
10306 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10308 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10309 sig->ret = &mono_defaults.int_class->byval_arg;
10310 sig->params [0] = &mono_defaults.object_class->byval_arg;
10311 for (i = 0; i < rank; ++i) {
10312 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10315 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10316 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10319 #ifndef DISABLE_JIT
10320 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10321 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10322 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10324 /* bounds = array->bounds; */
10325 mono_mb_emit_ldarg (mb, 0);
10326 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10327 mono_mb_emit_byte (mb, CEE_LDIND_I);
10328 mono_mb_emit_stloc (mb, bounds);
10330 /* ind is the overall element index, realidx is the partial index in a single dimension */
10331 /* ind = idx0 - bounds [0].lower_bound */
10332 mono_mb_emit_ldarg (mb, 1);
10333 mono_mb_emit_ldloc (mb, bounds);
10334 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10335 mono_mb_emit_byte (mb, CEE_ADD);
10336 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10337 mono_mb_emit_byte (mb, CEE_SUB);
10338 mono_mb_emit_stloc (mb, ind);
10339 /* if (ind >= bounds [0].length) goto exeception; */
10340 mono_mb_emit_ldloc (mb, ind);
10341 mono_mb_emit_ldloc (mb, bounds);
10342 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10343 mono_mb_emit_byte (mb, CEE_ADD);
10344 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10345 /* note that we use unsigned comparison */
10346 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10348 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10349 * We could also decide to ignore the passed elem_size and get it
10350 * from the array object, to reduce the number of methods we generate:
10351 * the additional cost is 3 memory loads and a non-immediate mul.
10353 for (i = 1; i < rank; ++i) {
10354 /* realidx = idxi - bounds [i].lower_bound */
10355 mono_mb_emit_ldarg (mb, 1 + i);
10356 mono_mb_emit_ldloc (mb, bounds);
10357 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10358 mono_mb_emit_byte (mb, CEE_ADD);
10359 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10360 mono_mb_emit_byte (mb, CEE_SUB);
10361 mono_mb_emit_stloc (mb, realidx);
10362 /* if (realidx >= bounds [i].length) goto exeception; */
10363 mono_mb_emit_ldloc (mb, realidx);
10364 mono_mb_emit_ldloc (mb, bounds);
10365 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10366 mono_mb_emit_byte (mb, CEE_ADD);
10367 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10368 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10369 /* ind = ind * bounds [i].length + realidx */
10370 mono_mb_emit_ldloc (mb, ind);
10371 mono_mb_emit_ldloc (mb, bounds);
10372 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10373 mono_mb_emit_byte (mb, CEE_ADD);
10374 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10375 mono_mb_emit_byte (mb, CEE_MUL);
10376 mono_mb_emit_ldloc (mb, realidx);
10377 mono_mb_emit_byte (mb, CEE_ADD);
10378 mono_mb_emit_stloc (mb, ind);
10381 /* return array->vector + ind * element_size */
10382 mono_mb_emit_ldarg (mb, 0);
10383 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10384 mono_mb_emit_ldloc (mb, ind);
10386 mono_mb_emit_icon (mb, elem_size);
10388 /* Load arr->vtable->klass->sizes.element_class */
10389 mono_mb_emit_ldarg (mb, 0);
10390 mono_mb_emit_byte (mb, CEE_CONV_I);
10391 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10392 mono_mb_emit_byte (mb, CEE_ADD);
10393 mono_mb_emit_byte (mb, CEE_LDIND_I);
10394 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10395 mono_mb_emit_byte (mb, CEE_ADD);
10396 mono_mb_emit_byte (mb, CEE_LDIND_I);
10397 /* sizes is an union, so this reads sizes.element_size */
10398 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10399 mono_mb_emit_byte (mb, CEE_ADD);
10400 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10402 mono_mb_emit_byte (mb, CEE_MUL);
10403 mono_mb_emit_byte (mb, CEE_ADD);
10404 mono_mb_emit_byte (mb, CEE_RET);
10406 /* patch the branches to get here and throw */
10407 for (i = 1; i < rank; ++i) {
10408 mono_mb_patch_branch (mb, branch_positions [i]);
10410 mono_mb_patch_branch (mb, branch_pos);
10411 /* throw exception */
10412 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10414 g_free (branch_positions);
10415 #endif /* DISABLE_JIT */
10417 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10418 info->d.element_addr.rank = rank;
10419 info->d.element_addr.elem_size = elem_size;
10420 ret = mono_mb_create (mb, sig, 4, info);
10423 /* cache the result */
10425 mono_marshal_lock ();
10426 for (i = 0; i < elem_addr_cache_next; ++i) {
10427 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10428 /* FIXME: free ret */
10429 ret = elem_addr_cache [i].method;
10435 if (elem_addr_cache_next >= elem_addr_cache_size) {
10436 int new_size = elem_addr_cache_size + 4;
10437 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10438 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10439 g_free (elem_addr_cache);
10440 elem_addr_cache = new_array;
10441 elem_addr_cache_size = new_size;
10443 elem_addr_cache [elem_addr_cache_next].rank = rank;
10444 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10445 elem_addr_cache [elem_addr_cache_next].method = ret;
10446 elem_addr_cache_next ++;
10448 mono_marshal_unlock ();
10453 * mono_marshal_get_array_accessor_wrapper:
10455 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10458 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10460 MonoMethodSignature *sig;
10461 MonoMethodBuilder *mb;
10465 MonoGenericContext *ctx = NULL;
10466 MonoMethod *orig_method = NULL;
10467 MonoGenericContainer *container = NULL;
10471 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10472 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10473 * FIXME: Use generic methods.
10480 g_assert_not_reached ();
10482 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10483 if ((res = mono_marshal_find_in_cache (cache, method)))
10487 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10490 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10492 #ifndef DISABLE_JIT
10493 /* Call the method */
10495 mono_mb_emit_ldarg (mb, 0);
10496 for (i = 0; i < sig->param_count; i++)
10497 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10501 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10502 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10504 mono_mb_emit_managed_call (mb, method, NULL);
10506 mono_mb_emit_byte (mb, CEE_RET);
10509 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10510 info->d.array_accessor.method = method;
10514 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10515 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10517 res = mono_mb_create_and_cache_full (cache, method,
10518 mb, sig, sig->param_count + 16,
10527 static inline void*
10528 mono_marshal_alloc_co_task_mem (size_t size)
10530 if ((gulong)size == 0)
10531 /* This returns a valid pointer for size 0 on MS.NET */
10534 return g_try_malloc ((gulong)size);
10539 mono_marshal_alloc (gulong size, MonoError *error)
10543 mono_error_init (error);
10545 res = mono_marshal_alloc_co_task_mem (size);
10547 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10552 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10554 ves_icall_marshal_alloc (gulong size)
10557 void *ret = mono_marshal_alloc (size, &error);
10558 if (!mono_error_ok (&error)) {
10559 mono_error_set_pending_exception (&error);
10568 mono_marshal_free_co_task_mem (void *ptr)
10576 mono_marshal_free (gpointer ptr)
10578 mono_marshal_free_co_task_mem (ptr);
10582 mono_marshal_free_array (gpointer *ptr, int size)
10589 for (i = 0; i < size; i++)
10595 mono_marshal_string_to_utf16 (MonoString *s)
10597 return s ? mono_string_chars (s) : NULL;
10600 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10602 mono_marshal_string_to_utf16_copy (MonoString *s)
10608 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10609 if (!mono_error_ok (&error)) {
10610 mono_error_set_pending_exception (&error);
10613 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10614 res [mono_string_length (s)] = 0;
10620 * mono_marshal_set_last_error:
10622 * This function is invoked to set the last error value from a P/Invoke call
10623 * which has SetLastError set.
10626 mono_marshal_set_last_error (void)
10629 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10631 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10636 mono_marshal_set_last_error_windows (int error)
10639 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10644 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10645 gpointer dest, gint32 length)
10650 MONO_CHECK_ARG_NULL (src,);
10651 MONO_CHECK_ARG_NULL (dest,);
10653 if (src->obj.vtable->klass->rank != 1) {
10654 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10657 if (start_index < 0) {
10658 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10662 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10665 if (start_index + length > mono_array_length (src)) {
10666 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10670 element_size = mono_array_element_size (src->obj.vtable->klass);
10672 /* no references should be involved */
10673 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10675 memcpy (dest, source_addr, length * element_size);
10679 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10680 MonoArray *dest, gint32 length)
10685 MONO_CHECK_ARG_NULL (src,);
10686 MONO_CHECK_ARG_NULL (dest,);
10688 if (dest->obj.vtable->klass->rank != 1) {
10689 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10692 if (start_index < 0) {
10693 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10697 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10700 if (start_index + length > mono_array_length (dest)) {
10701 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10704 element_size = mono_array_element_size (dest->obj.vtable->klass);
10706 /* no references should be involved */
10707 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10709 memcpy (dest_addr, src, length * element_size);
10713 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10718 return mono_string_new (mono_domain_get (), ptr);
10722 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10725 MonoString *result = NULL;
10726 mono_error_init (&error);
10728 mono_error_set_argument_null (&error, "ptr", "");
10730 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10731 mono_error_set_pending_exception (&error);
10736 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10739 MonoString *res = NULL;
10740 MonoDomain *domain = mono_domain_get ();
10750 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10751 if (!mono_error_ok (&error)) {
10752 mono_error_set_pending_exception (&error);
10759 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10762 MonoString *res = NULL;
10763 MonoDomain *domain = mono_domain_get ();
10765 mono_error_init (&error);
10769 mono_error_set_argument_null (&error, "ptr", "");
10771 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10774 if (!mono_error_ok (&error))
10775 mono_error_set_pending_exception (&error);
10780 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10782 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10786 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10792 MONO_CHECK_ARG_NULL (rtype, 0);
10794 type = rtype->type;
10795 klass = mono_class_from_mono_type (type);
10796 if (!mono_class_init (klass)) {
10797 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10801 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10803 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10804 return sizeof (gpointer);
10805 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10807 MonoException *exc;
10809 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10810 exc = mono_get_exception_argument ("t", msg);
10812 mono_set_pending_exception (exc);
10816 return mono_class_native_size (klass, NULL);
10820 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10823 MonoMethod *method;
10826 MONO_CHECK_ARG_NULL (obj,);
10827 MONO_CHECK_ARG_NULL (dst,);
10829 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10833 pa [2] = &delete_old;
10835 mono_runtime_invoke_checked (method, NULL, pa, &error);
10836 if (!mono_error_ok (&error))
10837 mono_error_set_pending_exception (&error);
10841 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10843 MonoMethod *method;
10846 mono_error_init (error);
10848 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10853 mono_runtime_invoke_checked (method, NULL, pa, error);
10857 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10862 MONO_CHECK_ARG_NULL (src,);
10863 MONO_CHECK_ARG_NULL (dst,);
10865 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10867 if (t->type == MONO_TYPE_VALUETYPE) {
10868 MonoException *exc;
10871 tmp = g_strdup_printf ("Destination is a boxed value type.");
10872 exc = mono_get_exception_argument ("dst", tmp);
10875 mono_set_pending_exception (exc);
10879 ptr_to_structure (src, dst, &error);
10880 if (!mono_error_ok (&error))
10881 mono_error_set_pending_exception (&error);
10885 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10889 MonoDomain *domain = mono_domain_get ();
10894 MONO_CHECK_ARG_NULL (type, NULL);
10896 klass = mono_class_from_mono_type (type->type);
10897 if (!mono_class_init (klass)) {
10898 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10902 res = mono_object_new_checked (domain, klass, &error);
10903 if (!mono_error_ok (&error)) {
10904 mono_error_set_pending_exception (&error);
10908 ptr_to_structure (src, res, &error);
10909 if (!mono_error_ok (&error)) {
10910 mono_error_set_pending_exception (&error);
10918 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10921 MonoMarshalType *info;
10924 int match_index = -1;
10926 MONO_CHECK_ARG_NULL (type, 0);
10927 MONO_CHECK_ARG_NULL (field_name, 0);
10929 fname = mono_string_to_utf8_checked (field_name, &error);
10930 if (mono_error_set_pending_exception (&error))
10932 klass = mono_class_from_mono_type (type->type);
10933 if (!mono_class_init (klass)) {
10934 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10938 while (klass && match_index == -1) {
10939 MonoClassField* field;
10941 gpointer iter = NULL;
10942 while ((field = mono_class_get_fields (klass, &iter))) {
10943 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10945 if (!strcmp (fname, mono_field_get_name (field))) {
10952 if (match_index == -1)
10953 klass = klass->parent;
10958 if(match_index == -1) {
10959 MonoException* exc;
10962 /* Get back original class instance */
10963 klass = mono_class_from_mono_type (type->type);
10965 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10966 exc = mono_get_exception_argument ("fieldName", tmp);
10969 mono_set_pending_exception ((MonoException*)exc);
10973 info = mono_marshal_load_type_info (klass);
10974 return info->fields [match_index].offset;
10979 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10982 char *ret = mono_string_to_utf8_checked (string, &error);
10983 mono_error_set_pending_exception (&error);
10988 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10990 if (string == NULL)
10993 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10995 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10996 res [mono_string_length (string)] = 0;
11000 #endif /* !HOST_WIN32 */
11003 mono_struct_delete_old (MonoClass *klass, char *ptr)
11005 MonoMarshalType *info;
11008 info = mono_marshal_load_type_info (klass);
11010 for (i = 0; i < info->num_fields; i++) {
11011 MonoMarshalConv conv;
11012 MonoType *ftype = info->fields [i].field->type;
11015 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11018 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11019 klass->unicode, &conv);
11021 cpos = ptr + info->fields [i].offset;
11024 case MONO_MARSHAL_CONV_NONE:
11025 if (MONO_TYPE_ISSTRUCT (ftype)) {
11026 mono_struct_delete_old (ftype->data.klass, cpos);
11030 case MONO_MARSHAL_CONV_STR_LPWSTR:
11031 /* We assume this field points inside a MonoString */
11033 case MONO_MARSHAL_CONV_STR_LPTSTR:
11034 #ifdef TARGET_WIN32
11035 /* We assume this field points inside a MonoString
11039 case MONO_MARSHAL_CONV_STR_LPSTR:
11040 case MONO_MARSHAL_CONV_STR_BSTR:
11041 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11042 case MONO_MARSHAL_CONV_STR_TBSTR:
11043 case MONO_MARSHAL_CONV_STR_UTF8STR:
11044 mono_marshal_free (*(gpointer *)cpos);
11054 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11058 MONO_CHECK_ARG_NULL (src,);
11059 MONO_CHECK_ARG_NULL (type,);
11061 klass = mono_class_from_mono_type (type->type);
11062 if (!mono_class_init (klass)) {
11063 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11067 mono_struct_delete_old (klass, (char *)src);
11071 static inline void *
11072 mono_marshal_alloc_hglobal (size_t size)
11074 return g_try_malloc (size);
11079 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11082 size_t s = (size_t)size;
11085 /* This returns a valid pointer for size 0 on MS.NET */
11088 res = mono_marshal_alloc_hglobal (s);
11091 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11099 static inline gpointer
11100 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11102 return g_try_realloc (ptr, size);
11107 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11110 size_t s = (size_t)size;
11113 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11117 res = mono_marshal_realloc_hglobal (ptr, s);
11120 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11129 mono_marshal_free_hglobal (gpointer ptr)
11137 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11139 mono_marshal_free_hglobal (ptr);
11143 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11145 void *res = mono_marshal_alloc_co_task_mem (size);
11148 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11155 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11157 void *res = mono_marshal_alloc_co_task_mem (size);
11160 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11167 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11169 mono_marshal_free_co_task_mem (ptr);
11174 static inline gpointer
11175 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11177 return g_try_realloc (ptr, (gulong)size);
11182 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11184 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11187 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11194 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11196 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11200 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11202 MonoClass *klass = mono_type_get_class (type->type);
11203 if (!mono_class_init (klass)) {
11204 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11208 return mono_ftnptr_to_delegate (klass, ftn);
11212 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11214 return mono_delegate_to_ftnptr (delegate);
11218 * mono_marshal_is_loading_type_info:
11220 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11224 mono_marshal_is_loading_type_info (MonoClass *klass)
11226 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11228 return g_slist_find (loads_list, klass) != NULL;
11232 * mono_marshal_load_type_info:
11234 * Initialize klass->marshal_info using information from metadata. This function can
11235 * recursively call itself, and the caller is responsible to avoid that by calling
11236 * mono_marshal_is_loading_type_info () beforehand.
11238 * LOCKING: Acquires the loader lock.
11241 mono_marshal_load_type_info (MonoClass* klass)
11244 guint32 native_size = 0, min_align = 1, packing;
11245 MonoMarshalType *info;
11246 MonoClassField* field;
11249 GSList *loads_list;
11251 g_assert (klass != NULL);
11253 if (klass->marshal_info)
11254 return klass->marshal_info;
11256 if (!klass->inited)
11257 mono_class_init (klass);
11259 if (klass->marshal_info)
11260 return klass->marshal_info;
11263 * This function can recursively call itself, so we keep the list of classes which are
11264 * under initialization in a TLS list.
11266 g_assert (!mono_marshal_is_loading_type_info (klass));
11267 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11268 loads_list = g_slist_prepend (loads_list, klass);
11269 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11272 while ((field = mono_class_get_fields (klass, &iter))) {
11273 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11275 if (mono_field_is_deleted (field))
11280 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11282 /* The mempool is protected by the loader lock */
11283 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11284 info->num_fields = count;
11286 /* Try to find a size for this type in metadata */
11287 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11289 if (klass->parent) {
11290 int parent_size = mono_class_native_size (klass->parent, NULL);
11292 /* Add parent size to real size */
11293 native_size += parent_size;
11294 info->native_size = parent_size;
11297 packing = klass->packing_size ? klass->packing_size : 8;
11300 while ((field = mono_class_get_fields (klass, &iter))) {
11304 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11307 if (mono_field_is_deleted (field))
11309 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11310 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11311 NULL, NULL, &info->fields [j].mspec);
11313 info->fields [j].field = field;
11315 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11316 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11317 /* This field is a hack inserted by MCS to empty structures */
11322 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11323 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11324 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11325 &align, TRUE, klass->unicode);
11326 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11327 min_align = MAX (align, min_align);
11328 info->fields [j].offset = info->native_size;
11329 info->fields [j].offset += align - 1;
11330 info->fields [j].offset &= ~(align - 1);
11331 info->native_size = info->fields [j].offset + size;
11333 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11334 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11335 &align, TRUE, klass->unicode);
11336 min_align = MAX (align, min_align);
11337 info->fields [j].offset = field->offset - sizeof (MonoObject);
11338 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11344 if (klass->byval_arg.type == MONO_TYPE_PTR)
11345 info->native_size = sizeof (gpointer);
11347 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11348 info->native_size = MAX (native_size, info->native_size);
11350 * If the provided Size is equal or larger than the calculated size, and there
11351 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11353 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11354 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11357 min_align = MIN (min_align, packing);
11361 if (info->native_size & (min_align - 1)) {
11362 info->native_size += min_align - 1;
11363 info->native_size &= ~(min_align - 1);
11366 info->min_align = min_align;
11368 /* Update the class's blittable info, if the layouts don't match */
11369 if (info->native_size != mono_class_value_size (klass, NULL))
11370 klass->blittable = FALSE;
11372 /* If this is an array type, ensure that we have element info */
11373 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11374 mono_marshal_load_type_info (klass->element_class);
11377 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11378 loads_list = g_slist_remove (loads_list, klass);
11379 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11381 mono_marshal_lock ();
11382 if (!klass->marshal_info) {
11383 /*We do double-checking locking on marshal_info */
11384 mono_memory_barrier ();
11385 klass->marshal_info = info;
11387 mono_marshal_unlock ();
11389 return klass->marshal_info;
11393 * mono_class_native_size:
11396 * Returns: the native size of an object instance (when marshaled
11397 * to unmanaged code)
11400 mono_class_native_size (MonoClass *klass, guint32 *align)
11402 if (!klass->marshal_info) {
11403 if (mono_marshal_is_loading_type_info (klass)) {
11408 mono_marshal_load_type_info (klass);
11413 *align = klass->marshal_info->min_align;
11415 return klass->marshal_info->native_size;
11419 * mono_type_native_stack_size:
11420 * @t: the type to return the size it uses on the stack
11422 * Returns: the number of bytes required to hold an instance of this
11423 * type on the native stack
11426 mono_type_native_stack_size (MonoType *t, guint32 *align)
11430 g_assert (t != NULL);
11436 *align = sizeof (gpointer);
11437 return sizeof (gpointer);
11441 case MONO_TYPE_BOOLEAN:
11442 case MONO_TYPE_CHAR:
11453 case MONO_TYPE_STRING:
11454 case MONO_TYPE_OBJECT:
11455 case MONO_TYPE_CLASS:
11456 case MONO_TYPE_SZARRAY:
11457 case MONO_TYPE_PTR:
11458 case MONO_TYPE_FNPTR:
11459 case MONO_TYPE_ARRAY:
11460 *align = sizeof (gpointer);
11461 return sizeof (gpointer);
11466 *align = MONO_ABI_ALIGNOF (double);
11470 *align = MONO_ABI_ALIGNOF (gint64);
11472 case MONO_TYPE_GENERICINST:
11473 if (!mono_type_generic_inst_is_valuetype (t)) {
11474 *align = sizeof (gpointer);
11475 return sizeof (gpointer);
11478 case MONO_TYPE_TYPEDBYREF:
11479 case MONO_TYPE_VALUETYPE: {
11481 MonoClass *klass = mono_class_from_mono_type (t);
11483 if (klass->enumtype)
11484 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11486 size = mono_class_native_size (klass, align);
11487 *align = *align + 3;
11497 g_error ("type 0x%02x unknown", t->type);
11503 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11504 gboolean as_field, gboolean unicode)
11506 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11509 switch (native_type) {
11510 case MONO_NATIVE_BOOLEAN:
11513 case MONO_NATIVE_I1:
11514 case MONO_NATIVE_U1:
11517 case MONO_NATIVE_I2:
11518 case MONO_NATIVE_U2:
11519 case MONO_NATIVE_VARIANTBOOL:
11522 case MONO_NATIVE_I4:
11523 case MONO_NATIVE_U4:
11524 case MONO_NATIVE_ERROR:
11527 case MONO_NATIVE_I8:
11528 case MONO_NATIVE_U8:
11529 *align = MONO_ABI_ALIGNOF (gint64);
11531 case MONO_NATIVE_R4:
11534 case MONO_NATIVE_R8:
11535 *align = MONO_ABI_ALIGNOF (double);
11537 case MONO_NATIVE_INT:
11538 case MONO_NATIVE_UINT:
11539 case MONO_NATIVE_LPSTR:
11540 case MONO_NATIVE_LPWSTR:
11541 case MONO_NATIVE_LPTSTR:
11542 case MONO_NATIVE_BSTR:
11543 case MONO_NATIVE_ANSIBSTR:
11544 case MONO_NATIVE_TBSTR:
11545 case MONO_NATIVE_UTF8STR:
11546 case MONO_NATIVE_LPARRAY:
11547 case MONO_NATIVE_SAFEARRAY:
11548 case MONO_NATIVE_IUNKNOWN:
11549 case MONO_NATIVE_IDISPATCH:
11550 case MONO_NATIVE_INTERFACE:
11551 case MONO_NATIVE_ASANY:
11552 case MONO_NATIVE_FUNC:
11553 case MONO_NATIVE_LPSTRUCT:
11554 *align = MONO_ABI_ALIGNOF (gpointer);
11555 return sizeof (gpointer);
11556 case MONO_NATIVE_STRUCT:
11557 klass = mono_class_from_mono_type (type);
11558 if (klass == mono_defaults.object_class &&
11559 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11563 return mono_class_native_size (klass, align);
11564 case MONO_NATIVE_BYVALTSTR: {
11565 int esize = unicode ? 2: 1;
11568 return mspec->data.array_data.num_elem * esize;
11570 case MONO_NATIVE_BYVALARRAY: {
11571 // FIXME: Have to consider ArraySubType
11573 klass = mono_class_from_mono_type (type);
11574 if (klass->element_class == mono_defaults.char_class) {
11575 esize = unicode ? 2 : 1;
11578 esize = mono_class_native_size (klass->element_class, align);
11581 return mspec->data.array_data.num_elem * esize;
11583 case MONO_NATIVE_CUSTOM:
11584 *align = sizeof (gpointer);
11585 return sizeof (gpointer);
11587 case MONO_NATIVE_CURRENCY:
11588 case MONO_NATIVE_VBBYREFSTR:
11590 g_error ("native type %02x not implemented", native_type);
11593 g_assert_not_reached ();
11597 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11599 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11608 t = &o->vtable->klass->byval_arg;
11612 case MONO_TYPE_PTR:
11615 case MONO_TYPE_BOOLEAN:
11618 case MONO_TYPE_CHAR:
11623 return mono_object_unbox (o);
11625 case MONO_TYPE_STRING:
11626 switch (string_encoding) {
11627 case MONO_NATIVE_LPWSTR:
11628 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11629 case MONO_NATIVE_LPSTR:
11630 case MONO_NATIVE_UTF8STR:
11631 // Same code path, because in Mono, we treated strings as Utf8
11632 return mono_string_to_utf8str ((MonoString*)o);
11634 g_warning ("marshaling conversion %d not implemented", string_encoding);
11635 g_assert_not_reached ();
11638 case MONO_TYPE_CLASS:
11639 case MONO_TYPE_VALUETYPE: {
11640 MonoMethod *method;
11643 MonoBoolean delete_old = FALSE;
11645 klass = t->data.klass;
11647 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11650 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11651 klass->blittable || klass->enumtype))
11652 return mono_object_unbox (o);
11654 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11655 if (!mono_error_ok (&error)) {
11656 mono_error_set_pending_exception (&error);
11660 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11661 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11665 pa [2] = &delete_old;
11667 mono_runtime_invoke_checked (method, NULL, pa, &error);
11668 if (!mono_error_ok (&error)) {
11669 mono_error_set_pending_exception (&error);
11679 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11683 /* This is a JIT icall, it sets the pending exception */
11685 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11694 t = &o->vtable->klass->byval_arg;
11696 case MONO_TYPE_STRING:
11697 switch (string_encoding) {
11698 case MONO_NATIVE_LPWSTR:
11699 case MONO_NATIVE_LPSTR:
11700 case MONO_NATIVE_UTF8STR:
11701 mono_marshal_free (ptr);
11704 g_warning ("marshaling conversion %d not implemented", string_encoding);
11705 g_assert_not_reached ();
11708 case MONO_TYPE_CLASS:
11709 case MONO_TYPE_VALUETYPE: {
11710 klass = t->data.klass;
11712 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11713 klass->blittable || klass->enumtype))
11716 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11717 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11723 mono_runtime_invoke_checked (method, NULL, pa, &error);
11724 if (!mono_error_ok (&error)) {
11725 mono_error_set_pending_exception (&error);
11730 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11731 mono_struct_delete_old (klass, (char *)ptr);
11734 mono_marshal_free (ptr);
11743 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11745 MonoMethodSignature *sig, *csig;
11746 MonoMethodBuilder *mb;
11751 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11752 mb->method->slot = -1;
11754 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11755 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11757 sig = mono_method_signature (method);
11758 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11759 csig->generic_param_count = 0;
11761 #ifndef DISABLE_JIT
11762 mono_mb_emit_ldarg (mb, 0);
11763 for (i = 0; i < csig->param_count; i++)
11764 mono_mb_emit_ldarg (mb, i + 1);
11765 mono_mb_emit_managed_call (mb, method, NULL);
11766 mono_mb_emit_byte (mb, CEE_RET);
11768 /* We can corlib internal methods */
11769 mb->skip_visibility = TRUE;
11771 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11772 info->d.generic_array_helper.method = method;
11773 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11781 * The mono_win32_compat_* functions are implementations of inline
11782 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11783 * although not exported by kernel32.
11785 * We map the appropiate kernel32 entries to these functions using
11786 * dllmaps declared in the global etc/mono/config.
11790 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11792 if (!dest || !source)
11795 memcpy (dest, source, length);
11799 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11801 memset (dest, fill, length);
11805 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11807 if (!dest || !source)
11810 memmove (dest, source, length);
11814 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11816 memset (dest, 0, length);
11820 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11825 for (i = 0; i < len; ++i)
11829 g_assert (i < len);
11832 while (byte && !(byte & 1))
11834 g_assert (byte == 1);
11837 *bitmask = buf [i];
11841 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11843 MonoMethodBuilder *mb;
11844 MonoMethodSignature *sig, *csig;
11845 MonoExceptionClause *clause;
11850 int i, param_count, sig_size, pos_leave;
11854 // FIXME: we need to store the exception into a MonoHandle
11855 g_assert (!mono_threads_is_coop_enabled ());
11857 klass = method->klass;
11858 image = method->klass->image;
11860 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11862 if ((res = mono_marshal_find_in_cache (cache, method)))
11865 sig = mono_method_signature (method);
11866 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11868 /* add "this" and exception param */
11869 param_count = sig->param_count + sig->hasthis + 1;
11871 /* dup & extend signature */
11872 csig = mono_metadata_signature_alloc (image, param_count);
11873 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11874 memcpy (csig, sig, sig_size);
11875 csig->param_count = param_count;
11878 csig->call_convention = MONO_CALL_DEFAULT;
11880 if (sig->hasthis) {
11882 csig->params [0] = &klass->byval_arg;
11883 /* move params up by one */
11884 for (i = 0; i < sig->param_count; i++)
11885 csig->params [i + 1] = sig->params [i];
11888 /* setup exception param as byref+[out] */
11889 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11890 &mono_defaults.exception_class->byval_arg);
11891 csig->params [param_count - 1]->byref = 1;
11892 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11894 /* convert struct return to object */
11895 if (MONO_TYPE_ISSTRUCT (sig->ret))
11896 csig->ret = &mono_defaults.object_class->byval_arg;
11898 #ifndef DISABLE_JIT
11899 /* local 0 (temp for exception object) */
11900 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11902 /* local 1 (temp for result) */
11903 if (!MONO_TYPE_IS_VOID (sig->ret))
11904 mono_mb_add_local (mb, sig->ret);
11906 /* clear exception arg */
11907 mono_mb_emit_ldarg (mb, param_count - 1);
11908 mono_mb_emit_byte (mb, CEE_LDNULL);
11909 mono_mb_emit_byte (mb, CEE_STIND_REF);
11912 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11913 clause->try_offset = mono_mb_get_label (mb);
11915 /* push method's args */
11916 for (i = 0; i < param_count - 1; i++) {
11920 mono_mb_emit_ldarg (mb, i);
11922 /* get the byval type of the param */
11923 klass = mono_class_from_mono_type (csig->params [i]);
11924 type = &klass->byval_arg;
11926 /* unbox struct args */
11927 if (MONO_TYPE_ISSTRUCT (type)) {
11928 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11930 /* byref args & and the "this" arg must remain a ptr.
11931 Otherwise make a copy of the value type */
11932 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11933 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11935 csig->params [i] = &mono_defaults.object_class->byval_arg;
11940 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11941 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11943 mono_mb_emit_op (mb, CEE_CALL, method);
11945 /* save result at local 1 */
11946 if (!MONO_TYPE_IS_VOID (sig->ret))
11947 mono_mb_emit_stloc (mb, 1);
11949 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11952 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11953 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11954 clause->data.catch_class = mono_defaults.object_class;
11956 clause->handler_offset = mono_mb_get_label (mb);
11958 /* store exception at local 0 */
11959 mono_mb_emit_stloc (mb, 0);
11960 mono_mb_emit_ldarg (mb, param_count - 1);
11961 mono_mb_emit_ldloc (mb, 0);
11962 mono_mb_emit_byte (mb, CEE_STIND_REF);
11963 mono_mb_emit_branch (mb, CEE_LEAVE);
11965 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11967 mono_mb_set_clauses (mb, 1, clause);
11969 mono_mb_patch_branch (mb, pos_leave);
11972 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11973 mono_mb_emit_ldloc (mb, 1);
11975 /* box the return value */
11976 if (MONO_TYPE_ISSTRUCT (sig->ret))
11977 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11980 mono_mb_emit_byte (mb, CEE_RET);
11983 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11990 * mono_marshal_free_dynamic_wrappers:
11992 * Free wrappers of the dynamic method METHOD.
11995 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11997 MonoImage *image = method->klass->image;
11999 g_assert (method_is_dynamic (method));
12001 /* This could be called during shutdown */
12002 if (marshal_mutex_initialized)
12003 mono_marshal_lock ();
12005 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12006 * they could be shared with other methods ?
12008 if (image->wrapper_caches.runtime_invoke_direct_cache)
12009 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
12010 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12011 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12012 // FIXME: Need to clear the caches in other images as well
12013 if (image->delegate_bound_static_invoke_cache)
12014 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12016 if (marshal_mutex_initialized)
12017 mono_marshal_unlock ();
12021 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12023 g_assert (ftnptr_eh_callback);
12024 ftnptr_eh_callback (gchandle);
12028 ftnptr_eh_callback_default (guint32 gchandle)
12030 MonoException *exc;
12031 gpointer stackdata;
12033 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12035 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12037 mono_gchandle_free (gchandle);
12039 mono_raise_exception (exc);
12043 * mono_install_ftnptr_eh_callback:
12045 * Install a callback that should be called when there is a managed exception
12046 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12047 * managed exception to a native exception, to properly unwind the native
12048 * stack; this native exception will then be converted back to a managed
12049 * exception in their managed-to-native wrapper.
12052 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12054 ftnptr_eh_callback = callback;
12057 static MonoThreadInfo*
12058 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12060 MonoThreadInfo *info = mono_thread_info_current ();
12062 mono_stack_mark_init (info, stackmark);
12063 mono_error_init (error);
12068 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12070 mono_stack_mark_pop (info, stackmark);
12071 mono_error_set_pending_exception (error);