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;
990 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
992 guint str_len = mono_string_builder_string_length (sb);
994 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
997 g_error_free (gerror);
998 mono_marshal_free (str_utf16);
999 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1002 gchar *res = (gchar *)mono_marshal_alloc (byte_count+1, &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. */
1080 mono_string_to_utf8str (MonoString *s)
1083 char *result = mono_string_to_utf8_checked (s, &error);
1084 mono_error_set_pending_exception (&error);
1087 #endif /* HOST_WIN32 */
1090 mono_string_to_ansibstr (MonoString *string_obj)
1092 g_error ("UnmanagedMarshal.BStr is not implemented.");
1097 * mono_string_to_byvalstr:
1098 * @dst: Where to store the null-terminated utf8 decoded string.
1099 * @src: the MonoString to copy.
1100 * @size: the maximum number of bytes to copy.
1102 * Copies the MonoString pointed to by @src as a utf8 string
1103 * into @dst, it copies at most @size bytes into the destination.
1106 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1112 g_assert (dst != NULL);
1113 g_assert (size > 0);
1115 memset (dst, 0, size);
1119 s = mono_string_to_utf8_checked (src, &error);
1120 if (mono_error_set_pending_exception (&error))
1122 len = MIN (size, strlen (s));
1125 memcpy (dst, s, len);
1130 * mono_string_to_byvalwstr:
1131 * @dst: Where to store the null-terminated utf16 decoded string.
1132 * @src: the MonoString to copy.
1133 * @size: the maximum number of bytes to copy.
1135 * Copies the MonoString pointed to by @src as a utf16 string into
1136 * @dst, it copies at most @size bytes into the destination (including
1137 * a terminating 16-bit zero terminator).
1140 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1144 g_assert (dst != NULL);
1145 g_assert (size > 1);
1148 memset (dst, 0, size * 2);
1152 len = MIN (size, (mono_string_length (src)));
1153 memcpy (dst, mono_string_chars (src), size * 2);
1154 if (size <= mono_string_length (src))
1156 *((gunichar2 *) dst + len) = 0;
1159 /* this is an icall, it sets the pending exception and returns NULL on error */
1161 mono_string_new_len_wrapper (const char *text, guint length)
1164 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1165 mono_error_set_pending_exception (&error);
1172 * mono_mb_emit_exception_marshal_directive:
1174 * This function assumes ownership of MSG, which should be malloc-ed.
1177 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1182 s = mono_image_strdup (mb->method->klass->image, msg);
1187 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1190 #endif /* !DISABLE_JIT */
1193 mono_type_to_ldind (MonoType *type)
1199 switch (type->type) {
1201 return CEE_LDIND_I1;
1203 case MONO_TYPE_BOOLEAN:
1204 return CEE_LDIND_U1;
1206 return CEE_LDIND_I2;
1208 case MONO_TYPE_CHAR:
1209 return CEE_LDIND_U2;
1211 return CEE_LDIND_I4;
1213 return CEE_LDIND_U4;
1217 case MONO_TYPE_FNPTR:
1219 case MONO_TYPE_CLASS:
1220 case MONO_TYPE_STRING:
1221 case MONO_TYPE_OBJECT:
1222 case MONO_TYPE_SZARRAY:
1223 case MONO_TYPE_ARRAY:
1224 return CEE_LDIND_REF;
1227 return CEE_LDIND_I8;
1229 return CEE_LDIND_R4;
1231 return CEE_LDIND_R8;
1232 case MONO_TYPE_VALUETYPE:
1233 if (type->data.klass->enumtype) {
1234 type = mono_class_enum_basetype (type->data.klass);
1238 case MONO_TYPE_TYPEDBYREF:
1240 case MONO_TYPE_GENERICINST:
1241 type = &type->data.generic_class->container_class->byval_arg;
1244 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1250 mono_type_to_stind (MonoType *type)
1253 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1257 switch (type->type) {
1260 case MONO_TYPE_BOOLEAN:
1261 return CEE_STIND_I1;
1264 case MONO_TYPE_CHAR:
1265 return CEE_STIND_I2;
1268 return CEE_STIND_I4;
1272 case MONO_TYPE_FNPTR:
1274 case MONO_TYPE_CLASS:
1275 case MONO_TYPE_STRING:
1276 case MONO_TYPE_OBJECT:
1277 case MONO_TYPE_SZARRAY:
1278 case MONO_TYPE_ARRAY:
1279 return CEE_STIND_REF;
1282 return CEE_STIND_I8;
1284 return CEE_STIND_R4;
1286 return CEE_STIND_R8;
1287 case MONO_TYPE_VALUETYPE:
1288 if (type->data.klass->enumtype) {
1289 type = mono_class_enum_basetype (type->data.klass);
1293 case MONO_TYPE_TYPEDBYREF:
1295 case MONO_TYPE_GENERICINST:
1296 type = &type->data.generic_class->container_class->byval_arg;
1299 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1307 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1310 case MONO_MARSHAL_CONV_BOOL_I4:
1311 mono_mb_emit_ldloc (mb, 1);
1312 mono_mb_emit_ldloc (mb, 0);
1313 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1314 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1315 mono_mb_emit_byte (mb, 3);
1316 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1317 mono_mb_emit_byte (mb, CEE_BR_S);
1318 mono_mb_emit_byte (mb, 1);
1319 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1320 mono_mb_emit_byte (mb, CEE_STIND_I1);
1322 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1323 mono_mb_emit_ldloc (mb, 1);
1324 mono_mb_emit_ldloc (mb, 0);
1325 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1326 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1327 mono_mb_emit_byte (mb, 3);
1328 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1329 mono_mb_emit_byte (mb, CEE_BR_S);
1330 mono_mb_emit_byte (mb, 1);
1331 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1332 mono_mb_emit_byte (mb, CEE_STIND_I1);
1334 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1335 MonoClass *eklass = NULL;
1338 if (type->type == MONO_TYPE_SZARRAY) {
1339 eklass = type->data.klass;
1341 g_assert_not_reached ();
1344 esize = mono_class_native_size (eklass, NULL);
1346 /* create a new array */
1347 mono_mb_emit_ldloc (mb, 1);
1348 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1349 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1350 mono_mb_emit_byte (mb, CEE_STIND_REF);
1352 if (eklass->blittable) {
1353 /* copy the elements */
1354 mono_mb_emit_ldloc (mb, 1);
1355 mono_mb_emit_byte (mb, CEE_LDIND_I);
1356 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1357 mono_mb_emit_byte (mb, CEE_ADD);
1358 mono_mb_emit_ldloc (mb, 0);
1359 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1360 mono_mb_emit_byte (mb, CEE_PREFIX1);
1361 mono_mb_emit_byte (mb, CEE_CPBLK);
1364 int array_var, src_var, dst_var, index_var;
1365 guint32 label2, label3;
1367 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1368 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1369 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1372 mono_mb_emit_ldloc (mb, 1);
1373 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1374 mono_mb_emit_stloc (mb, array_var);
1376 /* save the old src pointer */
1377 mono_mb_emit_ldloc (mb, 0);
1378 mono_mb_emit_stloc (mb, src_var);
1379 /* save the old dst pointer */
1380 mono_mb_emit_ldloc (mb, 1);
1381 mono_mb_emit_stloc (mb, dst_var);
1383 /* Emit marshalling loop */
1384 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1385 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1386 mono_mb_emit_stloc (mb, index_var);
1389 label2 = mono_mb_get_label (mb);
1390 mono_mb_emit_ldloc (mb, index_var);
1391 mono_mb_emit_ldloc (mb, array_var);
1392 mono_mb_emit_byte (mb, CEE_LDLEN);
1393 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1395 /* src is already set */
1398 mono_mb_emit_ldloc (mb, array_var);
1399 mono_mb_emit_ldloc (mb, index_var);
1400 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1401 mono_mb_emit_stloc (mb, 1);
1403 /* Do the conversion */
1404 emit_struct_conv (mb, eklass, TRUE);
1407 mono_mb_emit_add_to_local (mb, index_var, 1);
1409 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1411 mono_mb_patch_branch (mb, label3);
1413 /* restore the old src pointer */
1414 mono_mb_emit_ldloc (mb, src_var);
1415 mono_mb_emit_stloc (mb, 0);
1416 /* restore the old dst pointer */
1417 mono_mb_emit_ldloc (mb, dst_var);
1418 mono_mb_emit_stloc (mb, 1);
1422 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1423 MonoClass *eclass = mono_defaults.char_class;
1425 /* create a new array */
1426 mono_mb_emit_ldloc (mb, 1);
1427 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1428 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1429 mono_mb_emit_byte (mb, CEE_STIND_REF);
1431 mono_mb_emit_ldloc (mb, 1);
1432 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1433 mono_mb_emit_ldloc (mb, 0);
1434 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1435 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1438 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1439 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1440 mono_mb_emit_ldloc (mb, 1);
1441 mono_mb_emit_ldloc (mb, 0);
1442 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1443 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1445 mono_mb_emit_ldloc (mb, 1);
1446 mono_mb_emit_ldloc (mb, 0);
1447 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1449 mono_mb_emit_byte (mb, CEE_STIND_REF);
1451 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1452 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1453 mono_mb_emit_ldloc (mb, 1);
1454 mono_mb_emit_ldloc (mb, 0);
1455 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1456 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1458 mono_mb_emit_ldloc (mb, 1);
1459 mono_mb_emit_ldloc (mb, 0);
1460 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1462 mono_mb_emit_byte (mb, CEE_STIND_REF);
1464 case MONO_MARSHAL_CONV_STR_LPTSTR:
1465 mono_mb_emit_ldloc (mb, 1);
1466 mono_mb_emit_ldloc (mb, 0);
1467 mono_mb_emit_byte (mb, CEE_LDIND_I);
1469 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1471 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1473 mono_mb_emit_byte (mb, CEE_STIND_REF);
1476 // In Mono historically LPSTR was treated as a UTF8STR
1477 case MONO_MARSHAL_CONV_STR_LPSTR:
1478 case MONO_MARSHAL_CONV_STR_UTF8STR:
1479 mono_mb_emit_ldloc (mb, 1);
1480 mono_mb_emit_ldloc (mb, 0);
1481 mono_mb_emit_byte (mb, CEE_LDIND_I);
1482 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1483 mono_mb_emit_byte (mb, CEE_STIND_REF);
1485 case MONO_MARSHAL_CONV_STR_LPWSTR:
1486 mono_mb_emit_ldloc (mb, 1);
1487 mono_mb_emit_ldloc (mb, 0);
1488 mono_mb_emit_byte (mb, CEE_LDIND_I);
1489 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1490 mono_mb_emit_byte (mb, CEE_STIND_REF);
1492 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1493 MonoClass *klass = mono_class_from_mono_type (type);
1494 int src_var, dst_var;
1496 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1497 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1499 /* *dst = new object */
1500 mono_mb_emit_ldloc (mb, 1);
1501 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1502 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1503 mono_mb_emit_byte (mb, CEE_STIND_REF);
1505 /* save the old src pointer */
1506 mono_mb_emit_ldloc (mb, 0);
1507 mono_mb_emit_stloc (mb, src_var);
1508 /* save the old dst pointer */
1509 mono_mb_emit_ldloc (mb, 1);
1510 mono_mb_emit_stloc (mb, dst_var);
1512 /* dst = pointer to newly created object data */
1513 mono_mb_emit_ldloc (mb, 1);
1514 mono_mb_emit_byte (mb, CEE_LDIND_I);
1515 mono_mb_emit_icon (mb, sizeof (MonoObject));
1516 mono_mb_emit_byte (mb, CEE_ADD);
1517 mono_mb_emit_stloc (mb, 1);
1519 emit_struct_conv (mb, klass, TRUE);
1521 /* restore the old src pointer */
1522 mono_mb_emit_ldloc (mb, src_var);
1523 mono_mb_emit_stloc (mb, 0);
1524 /* restore the old dst pointer */
1525 mono_mb_emit_ldloc (mb, dst_var);
1526 mono_mb_emit_stloc (mb, 1);
1529 case MONO_MARSHAL_CONV_DEL_FTN: {
1530 MonoClass *klass = mono_class_from_mono_type (type);
1532 mono_mb_emit_ldloc (mb, 1);
1533 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1534 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1535 mono_mb_emit_ldloc (mb, 0);
1536 mono_mb_emit_byte (mb, CEE_LDIND_I);
1537 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1538 mono_mb_emit_byte (mb, CEE_STIND_REF);
1541 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1542 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1546 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1547 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1548 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1549 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1551 #endif /* DISABLE_COM */
1553 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1555 * Passing SafeHandles as ref does not allow the unmanaged code
1556 * to change the SafeHandle value. If the value is changed,
1557 * we should issue a diagnostic exception (NotSupportedException)
1558 * that informs the user that changes to handles in unmanaged code
1561 * Since we currently have no access to the original
1562 * SafeHandle that was used during the marshalling,
1563 * for now we just ignore this, and ignore/discard any
1564 * changes that might have happened to the handle.
1569 case MONO_MARSHAL_CONV_HANDLEREF: {
1571 * Passing HandleRefs in a struct that is ref()ed does not
1572 * copy the values back to the HandleRef
1577 case MONO_MARSHAL_CONV_STR_BSTR:
1578 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1579 case MONO_MARSHAL_CONV_STR_TBSTR:
1580 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1582 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1584 mono_mb_emit_exception_marshal_directive (mb, msg);
1591 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1594 if (!ind_store_type)
1595 ind_store_type = &dummy;
1596 *ind_store_type = CEE_STIND_I;
1598 case MONO_MARSHAL_CONV_STR_LPWSTR:
1599 return mono_marshal_string_to_utf16;
1600 case MONO_MARSHAL_CONV_LPWSTR_STR:
1601 *ind_store_type = CEE_STIND_REF;
1602 return ves_icall_mono_string_from_utf16;
1603 case MONO_MARSHAL_CONV_LPTSTR_STR:
1604 *ind_store_type = CEE_STIND_REF;
1605 return mono_string_new_wrapper;
1606 case MONO_MARSHAL_CONV_UTF8STR_STR:
1607 case MONO_MARSHAL_CONV_LPSTR_STR:
1608 *ind_store_type = CEE_STIND_REF;
1609 return mono_string_new_wrapper;
1610 case MONO_MARSHAL_CONV_STR_LPTSTR:
1612 return mono_marshal_string_to_utf16;
1614 return mono_string_to_utf8str;
1616 // In Mono historically LPSTR was treated as a UTF8STR
1617 case MONO_MARSHAL_CONV_STR_UTF8STR:
1618 case MONO_MARSHAL_CONV_STR_LPSTR:
1619 return mono_string_to_utf8str;
1620 case MONO_MARSHAL_CONV_STR_BSTR:
1621 return mono_string_to_bstr;
1622 case MONO_MARSHAL_CONV_BSTR_STR:
1623 *ind_store_type = CEE_STIND_REF;
1624 return mono_string_from_bstr_icall;
1625 case MONO_MARSHAL_CONV_STR_TBSTR:
1626 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1627 return mono_string_to_ansibstr;
1628 case MONO_MARSHAL_CONV_SB_UTF8STR:
1629 case MONO_MARSHAL_CONV_SB_LPSTR:
1630 return mono_string_builder_to_utf8;
1631 case MONO_MARSHAL_CONV_SB_LPTSTR:
1633 return mono_string_builder_to_utf16;
1635 return mono_string_builder_to_utf8;
1637 case MONO_MARSHAL_CONV_SB_LPWSTR:
1638 return mono_string_builder_to_utf16;
1639 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1640 return mono_array_to_savearray;
1641 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1642 return mono_array_to_lparray;
1643 case MONO_MARSHAL_FREE_LPARRAY:
1644 return mono_free_lparray;
1645 case MONO_MARSHAL_CONV_DEL_FTN:
1646 return mono_delegate_to_ftnptr;
1647 case MONO_MARSHAL_CONV_FTN_DEL:
1648 *ind_store_type = CEE_STIND_REF;
1649 return mono_ftnptr_to_delegate;
1650 case MONO_MARSHAL_CONV_UTF8STR_SB:
1651 case MONO_MARSHAL_CONV_LPSTR_SB:
1652 *ind_store_type = CEE_STIND_REF;
1653 return mono_string_utf8_to_builder;
1654 case MONO_MARSHAL_CONV_LPTSTR_SB:
1655 *ind_store_type = CEE_STIND_REF;
1657 return mono_string_utf16_to_builder;
1659 return mono_string_utf8_to_builder;
1661 case MONO_MARSHAL_CONV_LPWSTR_SB:
1662 *ind_store_type = CEE_STIND_REF;
1663 return mono_string_utf16_to_builder;
1664 case MONO_MARSHAL_FREE_ARRAY:
1665 return mono_marshal_free_array;
1666 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1667 return mono_string_to_byvalstr;
1668 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1669 return mono_string_to_byvalwstr;
1671 g_assert_not_reached ();
1678 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1684 case MONO_MARSHAL_CONV_BOOL_I4:
1685 mono_mb_emit_ldloc (mb, 1);
1686 mono_mb_emit_ldloc (mb, 0);
1687 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1688 mono_mb_emit_byte (mb, CEE_STIND_I4);
1690 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1691 mono_mb_emit_ldloc (mb, 1);
1692 mono_mb_emit_ldloc (mb, 0);
1693 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1694 mono_mb_emit_byte (mb, CEE_NEG);
1695 mono_mb_emit_byte (mb, CEE_STIND_I2);
1697 // In Mono historically LPSTR was treated as a UTF8STR
1698 case MONO_MARSHAL_CONV_STR_UTF8STR:
1699 case MONO_MARSHAL_CONV_STR_LPWSTR:
1700 case MONO_MARSHAL_CONV_STR_LPSTR:
1701 case MONO_MARSHAL_CONV_STR_LPTSTR:
1702 case MONO_MARSHAL_CONV_STR_BSTR:
1703 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1704 case MONO_MARSHAL_CONV_STR_TBSTR: {
1707 /* free space if free == true */
1708 mono_mb_emit_ldloc (mb, 2);
1709 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1710 mono_mb_emit_ldloc (mb, 1);
1711 mono_mb_emit_byte (mb, CEE_LDIND_I);
1712 mono_mb_emit_icall (mb, g_free);
1713 mono_mb_patch_short_branch (mb, pos);
1715 mono_mb_emit_ldloc (mb, 1);
1716 mono_mb_emit_ldloc (mb, 0);
1717 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1718 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1719 mono_mb_emit_byte (mb, stind_op);
1722 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1723 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1724 case MONO_MARSHAL_CONV_DEL_FTN:
1725 mono_mb_emit_ldloc (mb, 1);
1726 mono_mb_emit_ldloc (mb, 0);
1727 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1728 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1729 mono_mb_emit_byte (mb, stind_op);
1731 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1732 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1735 mono_mb_emit_ldloc (mb, 1); /* dst */
1736 mono_mb_emit_ldloc (mb, 0);
1737 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1738 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1739 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1742 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1743 MonoClass *eklass = NULL;
1746 if (type->type == MONO_TYPE_SZARRAY) {
1747 eklass = type->data.klass;
1749 g_assert_not_reached ();
1752 if (eklass->valuetype)
1753 esize = mono_class_native_size (eklass, NULL);
1755 esize = sizeof (gpointer);
1757 mono_mb_emit_ldloc (mb, 0);
1758 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1759 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1761 if (eklass->blittable) {
1762 mono_mb_emit_ldloc (mb, 1);
1763 mono_mb_emit_ldloc (mb, 0);
1764 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1765 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1766 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1767 mono_mb_emit_byte (mb, CEE_PREFIX1);
1768 mono_mb_emit_byte (mb, CEE_CPBLK);
1770 int array_var, src_var, dst_var, index_var;
1771 guint32 label2, label3;
1773 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1774 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1775 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1778 mono_mb_emit_ldloc (mb, 0);
1779 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1780 mono_mb_emit_stloc (mb, array_var);
1782 /* save the old src pointer */
1783 mono_mb_emit_ldloc (mb, 0);
1784 mono_mb_emit_stloc (mb, src_var);
1785 /* save the old dst pointer */
1786 mono_mb_emit_ldloc (mb, 1);
1787 mono_mb_emit_stloc (mb, dst_var);
1789 /* Emit marshalling loop */
1790 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1791 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1792 mono_mb_emit_stloc (mb, index_var);
1795 label2 = mono_mb_get_label (mb);
1796 mono_mb_emit_ldloc (mb, index_var);
1797 mono_mb_emit_ldloc (mb, array_var);
1798 mono_mb_emit_byte (mb, CEE_LDLEN);
1799 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1802 mono_mb_emit_ldloc (mb, array_var);
1803 mono_mb_emit_ldloc (mb, index_var);
1804 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1805 mono_mb_emit_stloc (mb, 0);
1807 /* dst is already set */
1809 /* Do the conversion */
1810 emit_struct_conv (mb, eklass, FALSE);
1813 mono_mb_emit_add_to_local (mb, index_var, 1);
1815 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1817 mono_mb_patch_branch (mb, label3);
1819 /* restore the old src pointer */
1820 mono_mb_emit_ldloc (mb, src_var);
1821 mono_mb_emit_stloc (mb, 0);
1822 /* restore the old dst pointer */
1823 mono_mb_emit_ldloc (mb, dst_var);
1824 mono_mb_emit_stloc (mb, 1);
1827 mono_mb_patch_branch (mb, pos);
1830 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1831 mono_mb_emit_ldloc (mb, 0);
1832 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1833 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1835 mono_mb_emit_ldloc (mb, 1);
1836 mono_mb_emit_ldloc (mb, 0);
1837 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1838 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1839 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1840 mono_mb_patch_short_branch (mb, pos);
1843 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1844 int src_var, dst_var;
1846 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1847 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1849 mono_mb_emit_ldloc (mb, 0);
1850 mono_mb_emit_byte (mb, CEE_LDIND_I);
1851 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1853 /* save the old src pointer */
1854 mono_mb_emit_ldloc (mb, 0);
1855 mono_mb_emit_stloc (mb, src_var);
1856 /* save the old dst pointer */
1857 mono_mb_emit_ldloc (mb, 1);
1858 mono_mb_emit_stloc (mb, dst_var);
1860 /* src = pointer to object data */
1861 mono_mb_emit_ldloc (mb, 0);
1862 mono_mb_emit_byte (mb, CEE_LDIND_I);
1863 mono_mb_emit_icon (mb, sizeof (MonoObject));
1864 mono_mb_emit_byte (mb, CEE_ADD);
1865 mono_mb_emit_stloc (mb, 0);
1867 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1869 /* restore the old src pointer */
1870 mono_mb_emit_ldloc (mb, src_var);
1871 mono_mb_emit_stloc (mb, 0);
1872 /* restore the old dst pointer */
1873 mono_mb_emit_ldloc (mb, dst_var);
1874 mono_mb_emit_stloc (mb, 1);
1876 mono_mb_patch_branch (mb, pos);
1881 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1882 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1883 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1884 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1886 #endif /* DISABLE_COM */
1888 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1891 mono_mb_emit_ldloc (mb, 0);
1892 mono_mb_emit_byte (mb, CEE_LDIND_I);
1893 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1894 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1895 mono_mb_patch_branch (mb, pos);
1897 /* Pull the handle field from SafeHandle */
1898 mono_mb_emit_ldloc (mb, 1);
1899 mono_mb_emit_ldloc (mb, 0);
1900 mono_mb_emit_byte (mb, CEE_LDIND_I);
1901 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1902 mono_mb_emit_byte (mb, CEE_LDIND_I);
1903 mono_mb_emit_byte (mb, CEE_STIND_I);
1907 case MONO_MARSHAL_CONV_HANDLEREF: {
1908 mono_mb_emit_ldloc (mb, 1);
1909 mono_mb_emit_ldloc (mb, 0);
1910 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1911 mono_mb_emit_byte (mb, CEE_ADD);
1912 mono_mb_emit_byte (mb, CEE_LDIND_I);
1913 mono_mb_emit_byte (mb, CEE_STIND_I);
1918 g_error ("marshalling conversion %d not implemented", conv);
1923 static int offset_of_first_nonstatic_field(MonoClass *klass)
1926 for (i = 0; i < klass->field.count; i++) {
1927 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
1928 return klass->fields[i].offset - sizeof (MonoObject);
1935 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1936 int offset_of_first_child_field, MonoMarshalNative string_encoding)
1938 MonoMarshalType *info;
1942 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
1944 info = mono_marshal_load_type_info (klass);
1946 if (info->native_size == 0)
1949 if (klass->blittable) {
1950 int usize = mono_class_value_size (klass, NULL);
1951 g_assert (usize == info->native_size);
1952 mono_mb_emit_ldloc (mb, 1);
1953 mono_mb_emit_ldloc (mb, 0);
1954 mono_mb_emit_icon (mb, usize);
1955 mono_mb_emit_byte (mb, CEE_PREFIX1);
1956 mono_mb_emit_byte (mb, CEE_CPBLK);
1959 mono_mb_emit_add_to_local (mb, 0, usize);
1960 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
1962 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
1963 mono_mb_emit_add_to_local (mb, 1, usize);
1968 if (klass != mono_class_try_get_safehandle_class ()) {
1969 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1970 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1971 mono_type_full_name (&klass->byval_arg));
1972 mono_mb_emit_exception_marshal_directive (mb, msg);
1977 for (i = 0; i < info->num_fields; i++) {
1978 MonoMarshalNative ntype;
1979 MonoMarshalConv conv;
1980 MonoType *ftype = info->fields [i].field->type;
1983 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1985 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1988 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1991 msize = klass->instance_size - info->fields [i].field->offset;
1992 usize = info->native_size - info->fields [i].offset;
1994 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1995 usize = info->fields [i + 1].offset - info->fields [i].offset;
1998 if (klass != mono_class_try_get_safehandle_class ()){
2000 * FIXME: Should really check for usize==0 and msize>0, but we apply
2001 * the layout to the managed structure as well.
2004 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2005 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2006 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2007 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2008 "reference field at the same offset as another field.",
2009 mono_type_full_name (&klass->byval_arg));
2014 case MONO_MARSHAL_CONV_NONE: {
2017 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2018 g_assert (!ftype->byref);
2019 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2020 mono_mb_emit_ldloc (mb, 1);
2021 mono_mb_emit_ldloc (mb, 0);
2022 mono_mb_emit_byte (mb, CEE_LDIND_I);
2023 mono_mb_emit_byte (mb, CEE_STIND_I);
2034 case MONO_TYPE_BOOLEAN:
2037 case MONO_TYPE_CHAR:
2043 mono_mb_emit_ldloc (mb, 1);
2044 mono_mb_emit_ldloc (mb, 0);
2045 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2047 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2048 mono_mb_emit_byte (mb, CEE_STIND_I2);
2050 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2051 mono_mb_emit_byte (mb, CEE_STIND_I1);
2054 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2055 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2058 case MONO_TYPE_VALUETYPE: {
2059 int src_var, dst_var;
2061 if (ftype->data.klass->enumtype) {
2062 ftype = mono_class_enum_basetype (ftype->data.klass);
2066 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2067 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2069 /* save the old src pointer */
2070 mono_mb_emit_ldloc (mb, 0);
2071 mono_mb_emit_stloc (mb, src_var);
2072 /* save the old dst pointer */
2073 mono_mb_emit_ldloc (mb, 1);
2074 mono_mb_emit_stloc (mb, dst_var);
2076 emit_struct_conv (mb, ftype->data.klass, to_object);
2078 /* restore the old src pointer */
2079 mono_mb_emit_ldloc (mb, src_var);
2080 mono_mb_emit_stloc (mb, 0);
2081 /* restore the old dst pointer */
2082 mono_mb_emit_ldloc (mb, dst_var);
2083 mono_mb_emit_stloc (mb, 1);
2086 case MONO_TYPE_OBJECT: {
2089 static MonoMethod *variant_clear = NULL;
2090 static MonoMethod *get_object_for_native_variant = NULL;
2093 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2094 if (!get_object_for_native_variant)
2095 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2096 mono_mb_emit_ldloc (mb, 1);
2097 mono_mb_emit_ldloc (mb, 0);
2098 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2099 mono_mb_emit_byte (mb, CEE_STIND_REF);
2101 mono_mb_emit_ldloc (mb, 0);
2102 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2105 static MonoMethod *get_native_variant_for_object = NULL;
2107 if (!get_native_variant_for_object)
2108 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2110 mono_mb_emit_ldloc (mb, 0);
2111 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2112 mono_mb_emit_ldloc (mb, 1);
2113 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2116 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2117 mono_mb_emit_exception_marshal_directive (mb, msg);
2123 g_warning ("marshaling type %02x not implemented", ftype->type);
2124 g_assert_not_reached ();
2129 int src_var, dst_var;
2131 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2132 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2134 /* save the old src pointer */
2135 mono_mb_emit_ldloc (mb, 0);
2136 mono_mb_emit_stloc (mb, src_var);
2137 /* save the old dst pointer */
2138 mono_mb_emit_ldloc (mb, 1);
2139 mono_mb_emit_stloc (mb, dst_var);
2142 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2144 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2146 /* restore the old src pointer */
2147 mono_mb_emit_ldloc (mb, src_var);
2148 mono_mb_emit_stloc (mb, 0);
2149 /* restore the old dst pointer */
2150 mono_mb_emit_ldloc (mb, dst_var);
2151 mono_mb_emit_stloc (mb, 1);
2156 mono_mb_emit_add_to_local (mb, 0, usize);
2157 mono_mb_emit_add_to_local (mb, 1, msize);
2159 mono_mb_emit_add_to_local (mb, 0, msize);
2160 mono_mb_emit_add_to_local (mb, 1, usize);
2166 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2168 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2172 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2174 /* Call DestroyStructure */
2175 /* FIXME: Only do this if needed */
2176 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2177 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2178 mono_mb_emit_ldloc (mb, struct_var);
2179 mono_mb_emit_icall (mb, mono_struct_delete_old);
2183 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2185 int pos_noabort, pos_noex;
2187 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2188 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2189 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2190 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2192 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2193 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2195 mono_mb_emit_icall (mb, checkpoint_func);
2196 /* Throw the exception returned by the checkpoint function, if any */
2197 mono_mb_emit_byte (mb, CEE_DUP);
2198 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2199 mono_mb_emit_byte (mb, CEE_THROW);
2200 mono_mb_patch_branch (mb, pos_noex);
2201 mono_mb_emit_byte (mb, CEE_POP);
2203 mono_mb_patch_branch (mb, pos_noabort);
2207 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2209 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2212 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2216 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2218 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2222 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2224 emit_thread_interrupt_checkpoint (mb);
2228 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2230 emit_thread_force_interrupt_checkpoint (mb);
2233 #endif /* DISABLE_JIT */
2235 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2236 static MonoAsyncResult *
2237 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2240 MonoMulticastDelegate *mcast_delegate;
2244 g_assert (delegate);
2245 mcast_delegate = (MonoMulticastDelegate *) delegate;
2246 if (mcast_delegate->delegates != NULL) {
2247 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2251 #ifndef DISABLE_REMOTING
2252 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2253 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2254 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2255 /* If the target is a proxy, make a direct call. Is proxy's work
2256 // to make the call asynchronous.
2258 MonoMethodMessage *msg;
2259 MonoDelegate *async_callback;
2261 MonoAsyncResult *ares;
2263 MonoArray *out_args;
2264 method = delegate->method;
2266 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2267 if (mono_error_set_pending_exception (&error))
2269 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2270 if (mono_error_set_pending_exception (&error))
2272 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2273 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2274 MONO_OBJECT_SETREF (msg, async_result, ares);
2275 msg->call_type = CallType_BeginInvoke;
2278 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2279 if (!mono_error_ok (&error)) {
2280 mono_error_set_pending_exception (&error);
2284 mono_set_pending_exception ((MonoException *) exc);
2290 klass = delegate->object.vtable->klass;
2292 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2294 method = mono_get_delegate_invoke (klass);
2297 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2298 mono_error_set_pending_exception (&error);
2305 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2307 int i, params_var, tmp_var;
2309 /* allocate local (pointer) *params[] */
2310 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2311 /* allocate local (pointer) tmp */
2312 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2314 /* alloate space on stack to store an array of pointers to the arguments */
2315 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2316 mono_mb_emit_byte (mb, CEE_PREFIX1);
2317 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2318 mono_mb_emit_stloc (mb, params_var);
2321 mono_mb_emit_ldloc (mb, params_var);
2322 mono_mb_emit_stloc (mb, tmp_var);
2324 if (save_this && sig->hasthis) {
2325 mono_mb_emit_ldloc (mb, tmp_var);
2326 mono_mb_emit_ldarg_addr (mb, 0);
2327 mono_mb_emit_byte (mb, CEE_STIND_I);
2328 /* tmp = tmp + sizeof (gpointer) */
2329 if (sig->param_count)
2330 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2334 for (i = 0; i < sig->param_count; i++) {
2335 mono_mb_emit_ldloc (mb, tmp_var);
2336 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2337 mono_mb_emit_byte (mb, CEE_STIND_I);
2338 /* tmp = tmp + sizeof (gpointer) */
2339 if (i < (sig->param_count - 1))
2340 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2346 #endif /* DISABLE_JIT */
2349 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2353 GString *res = g_string_new ("");
2356 g_string_append (res, prefix);
2357 g_string_append_c (res, '_');
2360 mono_type_get_desc (res, sig->ret, FALSE);
2363 g_string_append (res, "__this__");
2365 for (i = 0; i < sig->param_count; ++i) {
2366 g_string_append_c (res, '_');
2367 mono_type_get_desc (res, sig->params [i], FALSE);
2370 g_string_free (res, FALSE);
2375 * mono_marshal_get_string_encoding:
2377 * Return the string encoding which should be used for a given parameter.
2379 static MonoMarshalNative
2380 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2382 /* First try the parameter marshal info */
2384 if (spec->native == MONO_NATIVE_LPARRAY) {
2385 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2386 return spec->data.array_data.elem_type;
2389 return spec->native;
2393 return MONO_NATIVE_LPSTR;
2395 /* Then try the method level marshal info */
2396 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2397 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2398 return MONO_NATIVE_LPSTR;
2399 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2400 return MONO_NATIVE_LPWSTR;
2401 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2403 return MONO_NATIVE_LPWSTR;
2405 return MONO_NATIVE_LPSTR;
2408 return MONO_NATIVE_LPSTR;
2412 static MonoMarshalConv
2413 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2415 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2418 case MONO_NATIVE_LPWSTR:
2419 return MONO_MARSHAL_CONV_STR_LPWSTR;
2420 case MONO_NATIVE_LPSTR:
2421 case MONO_NATIVE_VBBYREFSTR:
2422 return MONO_MARSHAL_CONV_STR_LPSTR;
2423 case MONO_NATIVE_LPTSTR:
2424 return MONO_MARSHAL_CONV_STR_LPTSTR;
2425 case MONO_NATIVE_BSTR:
2426 return MONO_MARSHAL_CONV_STR_BSTR;
2427 case MONO_NATIVE_UTF8STR:
2428 return MONO_MARSHAL_CONV_STR_UTF8STR;
2430 return MONO_MARSHAL_CONV_INVALID;
2434 static MonoMarshalConv
2435 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2437 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2440 case MONO_NATIVE_LPWSTR:
2441 return MONO_MARSHAL_CONV_SB_LPWSTR;
2442 case MONO_NATIVE_LPSTR:
2443 return MONO_MARSHAL_CONV_SB_LPSTR;
2444 case MONO_NATIVE_UTF8STR:
2445 return MONO_MARSHAL_CONV_SB_UTF8STR;
2446 case MONO_NATIVE_LPTSTR:
2447 return MONO_MARSHAL_CONV_SB_LPTSTR;
2449 return MONO_MARSHAL_CONV_INVALID;
2453 static MonoMarshalConv
2454 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2456 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2461 case MONO_NATIVE_LPWSTR:
2463 return MONO_MARSHAL_CONV_LPWSTR_STR;
2464 case MONO_NATIVE_UTF8STR:
2465 return MONO_MARSHAL_CONV_UTF8STR_STR;
2466 case MONO_NATIVE_LPSTR:
2467 case MONO_NATIVE_VBBYREFSTR:
2468 return MONO_MARSHAL_CONV_LPSTR_STR;
2469 case MONO_NATIVE_LPTSTR:
2470 return MONO_MARSHAL_CONV_LPTSTR_STR;
2471 case MONO_NATIVE_BSTR:
2472 return MONO_MARSHAL_CONV_BSTR_STR;
2474 return MONO_MARSHAL_CONV_INVALID;
2478 static MonoMarshalConv
2479 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2481 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2486 case MONO_NATIVE_LPWSTR:
2488 * mono_string_builder_to_utf16 does not allocate a
2489 * new buffer, so no need to free it.
2492 return MONO_MARSHAL_CONV_LPWSTR_SB;
2493 case MONO_NATIVE_UTF8STR:
2494 return MONO_MARSHAL_CONV_UTF8STR_SB;
2495 case MONO_NATIVE_LPSTR:
2496 return MONO_MARSHAL_CONV_LPSTR_SB;
2498 case MONO_NATIVE_LPTSTR:
2499 return MONO_MARSHAL_CONV_LPTSTR_SB;
2502 return MONO_MARSHAL_CONV_INVALID;
2507 * Return whenever a field of a native structure or an array member needs to
2511 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2513 MonoMarshalNative encoding;
2516 case MONO_TYPE_VALUETYPE:
2517 /* FIXME: Optimize this */
2519 case MONO_TYPE_OBJECT:
2520 case MONO_TYPE_CLASS:
2521 if (t->data.klass == mono_defaults.stringbuilder_class) {
2523 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2527 case MONO_TYPE_STRING:
2528 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2529 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2536 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2539 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2542 mono_marshal_lock ();
2545 g_hash_table_new (hash_func, equal_func);
2546 mono_memory_barrier ();
2549 mono_marshal_unlock ();
2555 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2557 return get_cache (var, hash_func, equal_func);
2561 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2565 mono_marshal_lock ();
2566 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2567 mono_marshal_unlock ();
2574 * Create a MonoMethod from MB, set INFO as wrapper info.
2577 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2578 int max_stack, WrapperInfo *info)
2582 res = mono_mb_create_method (mb, sig, max_stack);
2584 mono_marshal_set_wrapper_info (res, info);
2588 /* Create the method from the builder and place it in the cache */
2590 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2591 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2592 int max_stack, WrapperInfo *info, gboolean *out_found)
2599 mono_marshal_lock ();
2600 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2601 mono_marshal_unlock ();
2604 newm = mono_mb_create_method (mb, sig, max_stack);
2605 mono_marshal_lock ();
2606 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2609 g_hash_table_insert (cache, key, res);
2610 mono_marshal_set_wrapper_info (res, info);
2611 mono_marshal_unlock ();
2615 mono_marshal_unlock ();
2616 mono_free_method (newm);
2624 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2625 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2628 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2632 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2635 int wrapper_type = wrapper->wrapper_type;
2638 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2641 info = mono_marshal_get_wrapper_info (wrapper);
2643 switch (wrapper_type) {
2644 case MONO_WRAPPER_REMOTING_INVOKE:
2645 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2646 case MONO_WRAPPER_XDOMAIN_INVOKE:
2647 m = info->d.remoting.method;
2648 if (wrapper->is_inflated) {
2652 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2653 * contains an uninflated method.
2655 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2656 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2660 case MONO_WRAPPER_SYNCHRONIZED:
2661 m = info->d.synchronized.method;
2662 if (wrapper->is_inflated) {
2665 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2666 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2670 case MONO_WRAPPER_UNBOX:
2671 return info->d.unbox.method;
2672 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2673 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2674 return info->d.managed_to_native.method;
2677 case MONO_WRAPPER_RUNTIME_INVOKE:
2678 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2679 return info->d.runtime_invoke.method;
2682 case MONO_WRAPPER_DELEGATE_INVOKE:
2684 return info->d.delegate_invoke.method;
2693 * mono_marshal_get_wrapper_info:
2695 * Retrieve the WrapperInfo structure associated with WRAPPER.
2698 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2700 g_assert (wrapper->wrapper_type);
2702 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2706 * mono_marshal_set_wrapper_info:
2708 * Set the WrapperInfo structure associated with the wrapper
2709 * method METHOD to INFO.
2712 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2716 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2719 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2724 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2728 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2729 info->subtype = subtype;
2734 * get_wrapper_target_class:
2736 * Return the class where a wrapper method should be placed.
2739 get_wrapper_target_class (MonoImage *image)
2746 * - can't put all wrappers into an mscorlib class, because they reference
2747 * metadata (signature) so they should be put into the same image as the
2748 * method they wrap, so they are unloaded together.
2749 * - putting them into a class with a type initalizer could cause the
2750 * initializer to be executed which can be a problem if the wrappers are
2752 * - putting them into an inflated class can cause problems if the the
2753 * class is deleted because it references an image which is unloaded.
2754 * To avoid these problems, we put the wrappers into the <Module> class of
2757 if (image_is_dynamic (image)) {
2758 klass = ((MonoDynamicImage*)image)->wrappers_type;
2760 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2761 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2769 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2770 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2774 * check_generic_wrapper_cache:
2776 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2777 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2778 * generic method definition.
2781 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2784 MonoMethod *inst, *def;
2785 MonoGenericContext *ctx;
2787 g_assert (orig_method->is_inflated);
2788 ctx = mono_method_get_context (orig_method);
2791 * Look for the instance
2793 res = mono_marshal_find_in_cache (cache, key);
2798 * Look for the definition
2800 def = mono_marshal_find_in_cache (cache, def_key);
2803 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2804 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2806 mono_memory_barrier ();
2807 mono_marshal_lock ();
2808 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2810 g_hash_table_insert (cache, key, inst);
2813 mono_marshal_unlock ();
2820 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2823 MonoMethod *inst, *res;
2826 * We use the same cache for the generic definition and the instances.
2828 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2829 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2830 mono_memory_barrier ();
2831 mono_marshal_lock ();
2832 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2834 g_hash_table_insert (cache, key, inst);
2837 mono_marshal_unlock ();
2842 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2846 MonoMethod *inst, *def;
2849 * Look for the instance
2851 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2856 * Look for the definition
2858 def = mono_marshal_find_in_cache (cache, def_method->klass);
2860 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2861 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2864 mono_memory_barrier ();
2865 mono_marshal_lock ();
2866 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2868 g_hash_table_insert (cache, orig_method->klass, inst);
2871 mono_marshal_unlock ();
2878 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2881 MonoMethod *inst, *res;
2884 * We use the same cache for the generic definition and the instances.
2886 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2887 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2889 mono_memory_barrier ();
2890 mono_marshal_lock ();
2891 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2893 g_hash_table_insert (cache, orig_method->klass, inst);
2896 mono_marshal_unlock ();
2901 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2903 MonoMethodSignature *sig;
2904 MonoMethodBuilder *mb;
2909 MonoGenericContext *ctx = NULL;
2910 MonoMethod *orig_method = NULL;
2912 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2913 !strcmp (method->name, "BeginInvoke"));
2916 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2918 if (method->is_inflated) {
2919 orig_method = method;
2920 ctx = &((MonoMethodInflated*)method)->context;
2921 method = ((MonoMethodInflated*)method)->declaring;
2924 sig = mono_signature_no_pinvoke (method);
2930 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2931 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2935 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2936 (GHashFunc)mono_signature_hash,
2937 (GCompareFunc)mono_metadata_signature_equal);
2938 if ((res = mono_marshal_find_in_cache (cache, sig)))
2942 g_assert (sig->hasthis);
2944 name = mono_signature_to_name (sig, "begin_invoke");
2946 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2948 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2952 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2954 mono_mb_emit_ldarg (mb, 0);
2955 mono_mb_emit_ldloc (mb, params_var);
2956 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2957 mono_mb_emit_byte (mb, CEE_RET);
2962 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2963 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2965 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2972 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2974 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2977 MonoDomain *domain = mono_domain_get ();
2978 MonoAsyncResult *ares;
2979 MonoMethod *method = NULL;
2980 MonoMethodSignature *sig;
2981 MonoMethodMessage *msg;
2982 MonoObject *res, *exc;
2983 MonoArray *out_args;
2986 g_assert (delegate);
2988 if (!delegate->method_info) {
2989 g_assert (delegate->method);
2990 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2991 if (!mono_error_ok (&error)) {
2992 mono_error_set_pending_exception (&error);
2995 MONO_OBJECT_SETREF (delegate, method_info, rm);
2998 if (!delegate->method_info || !delegate->method_info->method)
2999 g_assert_not_reached ();
3001 klass = delegate->object.vtable->klass;
3003 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3004 g_assert (method != NULL);
3006 sig = mono_signature_no_pinvoke (method);
3008 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3009 if (mono_error_set_pending_exception (&error))
3012 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3014 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."));
3018 if (ares->async_delegate != (MonoObject*)delegate) {
3019 mono_set_pending_exception (mono_get_exception_invalid_operation (
3020 "The IAsyncResult object provided does not match this delegate."));
3024 #ifndef DISABLE_REMOTING
3025 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3026 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3027 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3028 if (!mono_error_ok (&error)) {
3029 mono_error_set_pending_exception (&error);
3032 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3033 if (mono_error_set_pending_exception (&error))
3035 msg->call_type = CallType_EndInvoke;
3036 MONO_OBJECT_SETREF (msg, async_result, ares);
3037 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3038 if (!mono_error_ok (&error)) {
3039 mono_error_set_pending_exception (&error);
3045 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc, &error);
3046 if (mono_error_set_pending_exception (&error))
3051 if (((MonoException*)exc)->stack_trace) {
3052 MonoError inner_error;
3053 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3054 if (is_ok (&inner_error)) {
3056 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3058 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3061 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3063 mono_set_pending_exception ((MonoException*)exc);
3066 mono_method_return_message_restore (method, params, out_args, &error);
3067 mono_error_set_pending_exception (&error);
3074 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3076 MonoType *t = mono_type_get_underlying_type (return_type);
3078 if (return_type->byref)
3079 return_type = &mono_defaults.int_class->byval_arg;
3082 case MONO_TYPE_VOID:
3083 g_assert_not_reached ();
3086 case MONO_TYPE_STRING:
3087 case MONO_TYPE_CLASS:
3088 case MONO_TYPE_OBJECT:
3089 case MONO_TYPE_ARRAY:
3090 case MONO_TYPE_SZARRAY:
3094 case MONO_TYPE_BOOLEAN:
3097 case MONO_TYPE_CHAR:
3107 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3108 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3110 case MONO_TYPE_GENERICINST:
3111 if (!mono_type_generic_inst_is_valuetype (t))
3114 case MONO_TYPE_VALUETYPE: {
3115 MonoClass *klass = mono_class_from_mono_type (return_type);
3116 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3117 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3121 case MONO_TYPE_MVAR: {
3122 MonoClass *klass = mono_class_from_mono_type (return_type);
3123 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3127 g_warning ("type 0x%x not handled", return_type->type);
3128 g_assert_not_reached ();
3131 mono_mb_emit_byte (mb, CEE_RET);
3134 #endif /* DISABLE_JIT */
3137 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3139 MonoMethodSignature *sig;
3140 MonoMethodBuilder *mb;
3145 MonoGenericContext *ctx = NULL;
3146 MonoMethod *orig_method = NULL;
3148 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3149 !strcmp (method->name, "EndInvoke"));
3152 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3154 if (method->is_inflated) {
3155 orig_method = method;
3156 ctx = &((MonoMethodInflated*)method)->context;
3157 method = ((MonoMethodInflated*)method)->declaring;
3160 sig = mono_signature_no_pinvoke (method);
3166 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3167 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3171 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3172 (GHashFunc)mono_signature_hash,
3173 (GCompareFunc)mono_metadata_signature_equal);
3174 if ((res = mono_marshal_find_in_cache (cache, sig)))
3178 g_assert (sig->hasthis);
3180 name = mono_signature_to_name (sig, "end_invoke");
3182 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3184 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3188 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3190 mono_mb_emit_ldarg (mb, 0);
3191 mono_mb_emit_ldloc (mb, params_var);
3192 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3194 if (sig->ret->type == MONO_TYPE_VOID) {
3195 mono_mb_emit_byte (mb, CEE_POP);
3196 mono_mb_emit_byte (mb, CEE_RET);
3198 mono_mb_emit_restore_result (mb, sig->ret);
3203 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3204 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3206 res = mono_mb_create_and_cache (cache, sig,
3207 mb, sig, sig->param_count + 16);
3216 MonoMethodSignature *sig;
3218 } SignaturePointerPair;
3221 signature_pointer_pair_hash (gconstpointer data)
3223 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3225 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3229 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3231 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3232 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3236 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3238 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3240 return pair->pointer == user_data;
3244 free_signature_pointer_pair (SignaturePointerPair *pair)
3250 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3252 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3254 MonoMethodBuilder *mb;
3257 gpointer cache_key = NULL;
3258 SignaturePointerPair key;
3259 SignaturePointerPair *new_key;
3260 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3261 int pos0, pos1, pos2;
3263 MonoClass *target_class = NULL;
3264 gboolean closed_over_null = FALSE;
3265 MonoGenericContext *ctx = NULL;
3266 MonoGenericContainer *container = NULL;
3267 MonoMethod *orig_method = method;
3269 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3273 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3274 !strcmp (method->name, "Invoke"));
3276 invoke_sig = sig = mono_signature_no_pinvoke (method);
3279 * If the delegate target is null, and the target method is not static, a virtual
3280 * call is made to that method with the first delegate argument as this. This is
3281 * a non-documented .NET feature.
3284 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3285 if (target_method->is_inflated) {
3287 MonoType *target_type;
3289 g_assert (method->signature->hasthis);
3290 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3291 mono_method_get_context (method), &error);
3292 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3293 target_class = mono_class_from_mono_type (target_type);
3295 target_class = target_method->klass;
3298 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3301 if (static_method_with_first_arg_bound) {
3302 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3303 g_assert (!callvirt);
3304 invoke_sig = mono_method_signature (target_method);
3308 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3310 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3311 ctx = &((MonoMethodInflated*)method)->context;
3312 method = ((MonoMethodInflated*)method)->declaring;
3314 container = mono_method_get_generic_container (method);
3316 container = method->klass->generic_container;
3317 g_assert (container);
3319 invoke_sig = sig = mono_signature_no_pinvoke (method);
3326 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3327 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3330 cache_key = method->klass;
3331 } else if (static_method_with_first_arg_bound) {
3332 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3333 (GHashFunc)mono_signature_hash,
3334 (GCompareFunc)mono_metadata_signature_equal);
3336 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3338 res = mono_marshal_find_in_cache (cache, invoke_sig);
3341 cache_key = invoke_sig;
3342 } else if (callvirt) {
3343 GHashTable **cache_ptr;
3345 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3347 /* We need to cache the signature+method pair */
3348 mono_marshal_lock ();
3350 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3352 key.sig = invoke_sig;
3353 key.pointer = target_method;
3354 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3355 mono_marshal_unlock ();
3359 // Inflated methods should not be in this cache because it's not stored on the imageset.
3360 g_assert (!method->is_inflated);
3361 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3362 (GHashFunc)mono_signature_hash,
3363 (GCompareFunc)mono_metadata_signature_equal);
3364 res = mono_marshal_find_in_cache (cache, sig);
3370 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3371 static_sig->hasthis = 0;
3372 if (!static_method_with_first_arg_bound)
3373 invoke_sig = static_sig;
3375 if (static_method_with_first_arg_bound)
3376 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3377 else if (closed_over_null)
3378 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3380 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3382 name = mono_signature_to_name (invoke_sig, "invoke");
3384 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3386 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3390 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3392 /* allocate local 0 (object) */
3393 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3394 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3395 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3396 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3397 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3400 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3402 g_assert (sig->hasthis);
3405 * {type: sig->ret} res;
3406 * if (delegates == null) {
3407 * return this.<target> ( args .. );
3409 * int i = 0, len = this.delegates.Length;
3411 * res = this.delegates [i].Invoke ( args .. );
3412 * } while (++i < len);
3417 /* this wrapper can be used in unmanaged-managed transitions */
3418 emit_thread_interrupt_checkpoint (mb);
3420 /* delegates = this.delegates */
3421 mono_mb_emit_ldarg (mb, 0);
3422 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3423 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3424 mono_mb_emit_stloc (mb, local_delegates);
3426 /* if (delegates == null) */
3427 mono_mb_emit_ldloc (mb, local_delegates);
3428 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3430 /* return target.<target_method|method_ptr> ( args .. ); */
3432 /* target = d.target; */
3433 mono_mb_emit_ldarg (mb, 0);
3434 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3435 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3436 mono_mb_emit_stloc (mb, local_target);
3438 /*static methods with bound first arg can have null target and still be bound*/
3439 if (!static_method_with_first_arg_bound) {
3440 /* if target != null */
3441 mono_mb_emit_ldloc (mb, local_target);
3442 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3444 /* then call this->method_ptr nonstatic */
3447 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3449 mono_mb_emit_ldloc (mb, local_target);
3450 for (i = 0; i < sig->param_count; ++i)
3451 mono_mb_emit_ldarg (mb, i + 1);
3452 mono_mb_emit_ldarg (mb, 0);
3453 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3454 mono_mb_emit_byte (mb, CEE_LDIND_I);
3455 mono_mb_emit_ldarg (mb, 0);
3456 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3457 mono_mb_emit_byte (mb, CEE_LDIND_I);
3458 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3459 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3460 mono_mb_emit_byte (mb, CEE_RET);
3463 /* else [target == null] call this->method_ptr static */
3464 mono_mb_patch_branch (mb, pos0);
3468 if (!closed_over_null) {
3469 if (target_class->valuetype) {
3470 mono_mb_emit_ldarg (mb, 1);
3471 for (i = 1; i < sig->param_count; ++i)
3472 mono_mb_emit_ldarg (mb, i + 1);
3473 mono_mb_emit_op (mb, CEE_CALL, target_method);
3475 mono_mb_emit_ldarg (mb, 1);
3476 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3477 for (i = 1; i < sig->param_count; ++i)
3478 mono_mb_emit_ldarg (mb, i + 1);
3479 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3482 mono_mb_emit_byte (mb, CEE_LDNULL);
3483 for (i = 0; i < sig->param_count; ++i)
3484 mono_mb_emit_ldarg (mb, i + 1);
3485 mono_mb_emit_op (mb, CEE_CALL, target_method);
3488 if (static_method_with_first_arg_bound) {
3489 mono_mb_emit_ldloc (mb, local_target);
3490 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3491 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3493 for (i = 0; i < sig->param_count; ++i)
3494 mono_mb_emit_ldarg (mb, i + 1);
3495 mono_mb_emit_ldarg (mb, 0);
3496 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3497 mono_mb_emit_byte (mb, CEE_LDIND_I);
3498 mono_mb_emit_ldarg (mb, 0);
3499 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3500 mono_mb_emit_byte (mb, CEE_LDIND_I);
3501 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3502 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3505 mono_mb_emit_byte (mb, CEE_RET);
3507 /* else [delegates != null] */
3508 mono_mb_patch_branch (mb, pos2);
3510 /* len = delegates.Length; */
3511 mono_mb_emit_ldloc (mb, local_delegates);
3512 mono_mb_emit_byte (mb, CEE_LDLEN);
3513 mono_mb_emit_byte (mb, CEE_CONV_I4);
3514 mono_mb_emit_stloc (mb, local_len);
3517 mono_mb_emit_icon (mb, 0);
3518 mono_mb_emit_stloc (mb, local_i);
3520 pos1 = mono_mb_get_label (mb);
3522 /* d = delegates [i]; */
3523 mono_mb_emit_ldloc (mb, local_delegates);
3524 mono_mb_emit_ldloc (mb, local_i);
3525 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3526 mono_mb_emit_stloc (mb, local_d);
3528 /* res = d.Invoke ( args .. ); */
3529 mono_mb_emit_ldloc (mb, local_d);
3530 for (i = 0; i < sig->param_count; i++)
3531 mono_mb_emit_ldarg (mb, i + 1);
3533 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3536 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3537 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3540 mono_mb_emit_stloc (mb, local_res);
3543 mono_mb_emit_add_to_local (mb, local_i, 1);
3546 mono_mb_emit_ldloc (mb, local_i);
3547 mono_mb_emit_ldloc (mb, local_len);
3548 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3552 mono_mb_emit_ldloc (mb, local_res);
3553 mono_mb_emit_byte (mb, CEE_RET);
3555 mb->skip_visibility = 1;
3556 #endif /* DISABLE_JIT */
3558 info = mono_wrapper_info_create (mb, subtype);
3559 info->d.delegate_invoke.method = orig_method;
3564 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3565 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3566 } else if (callvirt) {
3567 new_key = g_new0 (SignaturePointerPair, 1);
3570 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3574 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3578 /* mono_method_print_code (res); */
3584 * the returned method invokes all methods in a multicast delegate.
3587 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3589 gboolean callvirt = FALSE;
3590 gboolean static_method_with_first_arg_bound = FALSE;
3591 MonoMethod *target_method = NULL;
3592 MonoMethodSignature *sig;
3594 sig = mono_signature_no_pinvoke (method);
3596 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3598 target_method = del->method;
3601 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3602 static_method_with_first_arg_bound = TRUE;
3603 target_method = del->method;
3606 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3610 MonoMethodSignature *ctor_sig;
3611 MonoMethodSignature *sig;
3614 /* protected by the marshal lock, contains CtorSigPair pointers */
3615 static GSList *strsig_list = NULL;
3617 static MonoMethodSignature *
3618 lookup_string_ctor_signature (MonoMethodSignature *sig)
3620 MonoMethodSignature *callsig;
3624 mono_marshal_lock ();
3626 for (item = strsig_list; item; item = item->next) {
3627 cs = (CtorSigPair *)item->data;
3628 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3629 * because it is lock-free.
3631 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3636 mono_marshal_unlock ();
3640 static MonoMethodSignature *
3641 add_string_ctor_signature (MonoMethod *method)
3643 MonoMethodSignature *callsig;
3646 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3647 callsig->ret = &mono_defaults.string_class->byval_arg;
3648 cs = g_new (CtorSigPair, 1);
3650 cs->ctor_sig = mono_method_signature (method);
3652 mono_marshal_lock ();
3653 strsig_list = g_slist_prepend (strsig_list, cs);
3654 mono_marshal_unlock ();
3659 * mono_marshal_get_string_ctor_signature:
3661 * Return the modified signature used by string ctors (they return the newly created
3664 MonoMethodSignature*
3665 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3667 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3669 sig = add_string_ctor_signature (method);
3675 get_runtime_invoke_type (MonoType *t, gboolean ret)
3678 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3680 /* Can't share this with 'I' as that needs another indirection */
3681 return &mono_defaults.int_class->this_arg;
3684 if (MONO_TYPE_IS_REFERENCE (t))
3685 return &mono_defaults.object_class->byval_arg;
3688 /* The result needs to be boxed */
3693 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3696 return &mono_defaults.sbyte_class->byval_arg;
3698 return &mono_defaults.int16_class->byval_arg;
3700 return &mono_defaults.int32_class->byval_arg;
3703 return &mono_defaults.int64_class->byval_arg;
3704 case MONO_TYPE_BOOLEAN:
3705 return &mono_defaults.byte_class->byval_arg;
3706 case MONO_TYPE_CHAR:
3707 return &mono_defaults.uint16_class->byval_arg;
3709 return &mono_defaults.int_class->byval_arg;
3710 case MONO_TYPE_VALUETYPE:
3711 if (t->data.klass->enumtype) {
3712 t = mono_class_enum_basetype (t->data.klass);
3722 * mono_marshal_get_runtime_invoke_sig:
3724 * Return a common signature used for sharing runtime invoke wrappers.
3726 static MonoMethodSignature*
3727 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3729 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3732 res->generic_param_count = 0;
3733 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3734 for (i = 0; i < res->param_count; ++i)
3735 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3741 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3743 /* Can't share wrappers which return a vtype since it needs to be boxed */
3744 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))
3747 return mono_metadata_signature_equal (sig1, sig2);
3755 * Emit the call to the wrapper method from a runtime invoke wrapper.
3758 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3759 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3761 gboolean virtual_, gboolean need_direct_wrapper)
3763 static MonoString *string_dummy = NULL;
3765 int *tmp_nullable_locals;
3766 gboolean void_ret = FALSE;
3767 gboolean string_ctor = method && method->string_ctor;
3769 /* to make it work with our special string constructors */
3770 if (!string_dummy) {
3771 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3772 string_dummy = mono_string_new_wrapper ("dummy");
3776 g_assert (sig->hasthis);
3777 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3782 if (mono_gc_is_moving ()) {
3783 mono_mb_emit_ptr (mb, &string_dummy);
3784 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3786 mono_mb_emit_ptr (mb, string_dummy);
3789 mono_mb_emit_ldarg (mb, 0);
3793 tmp_nullable_locals = g_new0 (int, sig->param_count);
3795 for (i = 0; i < sig->param_count; i++) {
3796 MonoType *t = sig->params [i];
3799 mono_mb_emit_ldarg (mb, 1);
3801 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3802 mono_mb_emit_byte (mb, CEE_ADD);
3806 mono_mb_emit_byte (mb, CEE_LDIND_I);
3807 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3808 * So to make this work we unbox it to a local variablee and push a reference to that.
3810 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3811 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3813 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3814 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3815 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3820 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3821 type = sig->params [i]->type;
3825 case MONO_TYPE_BOOLEAN:
3829 case MONO_TYPE_CHAR:
3838 mono_mb_emit_byte (mb, CEE_LDIND_I);
3839 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3841 case MONO_TYPE_STRING:
3842 case MONO_TYPE_CLASS:
3843 case MONO_TYPE_ARRAY:
3845 case MONO_TYPE_SZARRAY:
3846 case MONO_TYPE_OBJECT:
3847 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3849 case MONO_TYPE_GENERICINST:
3850 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3851 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3856 case MONO_TYPE_VALUETYPE:
3857 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3858 type = mono_class_enum_basetype (t->data.klass)->type;
3861 mono_mb_emit_byte (mb, CEE_LDIND_I);
3862 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3863 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3864 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3865 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3867 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3871 g_assert_not_reached ();
3876 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3877 } else if (need_direct_wrapper) {
3878 mono_mb_emit_op (mb, CEE_CALL, method);
3880 mono_mb_emit_ldarg (mb, 3);
3881 mono_mb_emit_calli (mb, callsig);
3884 if (sig->ret->byref) {
3886 g_assert_not_reached ();
3889 switch (sig->ret->type) {
3890 case MONO_TYPE_VOID:
3894 case MONO_TYPE_BOOLEAN:
3895 case MONO_TYPE_CHAR:
3908 case MONO_TYPE_VALUETYPE:
3909 case MONO_TYPE_TYPEDBYREF:
3910 case MONO_TYPE_GENERICINST:
3911 /* box value types */
3912 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3914 case MONO_TYPE_STRING:
3915 case MONO_TYPE_CLASS:
3916 case MONO_TYPE_ARRAY:
3917 case MONO_TYPE_SZARRAY:
3918 case MONO_TYPE_OBJECT:
3922 /* The result is an IntPtr */
3923 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3926 g_assert_not_reached ();
3930 mono_mb_emit_stloc (mb, loc_res);
3932 /* Convert back nullable-byref arguments */
3933 for (i = 0; i < sig->param_count; i++) {
3934 MonoType *t = sig->params [i];
3937 * Box the result and put it back into the array, the caller will have
3938 * to obtain it from there.
3940 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3941 mono_mb_emit_ldarg (mb, 1);
3942 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3943 mono_mb_emit_byte (mb, CEE_ADD);
3945 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3946 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3948 mono_mb_emit_byte (mb, CEE_STIND_REF);
3952 g_free (tmp_nullable_locals);
3956 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3957 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3958 gboolean virtual_, gboolean need_direct_wrapper)
3961 MonoExceptionClause *clause;
3962 int loc_res, loc_exc;
3964 /* The wrapper looks like this:
3970 * } catch (Exception e) {
3978 /* allocate local 0 (object) tmp */
3979 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3980 /* allocate local 1 (object) exc */
3981 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3983 /* *exc is assumed to be initialized to NULL by the caller */
3985 mono_mb_emit_byte (mb, CEE_LDARG_2);
3986 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3991 labels [1] = mono_mb_get_label (mb);
3992 emit_thread_force_interrupt_checkpoint (mb);
3993 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3995 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3997 /* Add a try clause around the call */
3998 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3999 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4000 clause->data.catch_class = mono_defaults.exception_class;
4001 clause->try_offset = labels [1];
4002 clause->try_len = mono_mb_get_label (mb) - labels [1];
4004 clause->handler_offset = mono_mb_get_label (mb);
4007 mono_mb_emit_stloc (mb, loc_exc);
4008 mono_mb_emit_byte (mb, CEE_LDARG_2);
4009 mono_mb_emit_ldloc (mb, loc_exc);
4010 mono_mb_emit_byte (mb, CEE_STIND_REF);
4012 mono_mb_emit_branch (mb, CEE_LEAVE);
4014 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4016 mono_mb_set_clauses (mb, 1, clause);
4018 mono_mb_patch_branch (mb, labels [2]);
4019 mono_mb_emit_ldloc (mb, loc_res);
4020 mono_mb_emit_byte (mb, CEE_RET);
4025 mono_mb_patch_branch (mb, labels [0]);
4026 emit_thread_force_interrupt_checkpoint (mb);
4027 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4029 mono_mb_emit_ldloc (mb, 0);
4030 mono_mb_emit_byte (mb, CEE_RET);
4035 * generates IL code for the runtime invoke function
4036 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4038 * we also catch exceptions if exc != null
4039 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4040 * it means that the compiled code for METHOD does not have to be looked up
4041 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4042 * its METHOD argument.
4045 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4047 MonoMethodSignature *sig, *csig, *callsig;
4048 MonoMethodBuilder *mb;
4049 GHashTable *cache = NULL;
4050 MonoClass *target_klass;
4051 MonoMethod *res = NULL;
4052 static MonoMethodSignature *cctor_signature = NULL;
4053 static MonoMethodSignature *finalize_signature = NULL;
4055 const char *param_names [16];
4056 gboolean need_direct_wrapper = FALSE;
4061 if (!cctor_signature) {
4062 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4063 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4065 if (!finalize_signature) {
4066 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4067 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4068 finalize_signature->hasthis = 1;
4072 need_direct_wrapper = TRUE;
4075 * Use a separate cache indexed by methods to speed things up and to avoid the
4076 * boundless mempool growth caused by the signature_dup stuff below.
4079 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4081 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4083 res = mono_marshal_find_in_cache (cache, method);
4087 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4088 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4090 * Array Get/Set/Address methods. The JIT implements them using inline code
4091 * so we need to create an invoke wrapper which calls the method directly.
4093 need_direct_wrapper = TRUE;
4096 if (method->string_ctor) {
4097 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4099 callsig = add_string_ctor_signature (method);
4100 /* Can't share this as we push a string as this */
4101 need_direct_wrapper = TRUE;
4103 if (method_is_dynamic (method))
4104 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4106 callsig = mono_method_signature (method);
4109 sig = mono_method_signature (method);
4111 target_klass = get_wrapper_target_class (method->klass->image);
4113 /* Try to share wrappers for non-corlib methods with simple signatures */
4114 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4115 callsig = cctor_signature;
4116 target_klass = mono_defaults.object_class;
4117 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4118 callsig = finalize_signature;
4119 target_klass = mono_defaults.object_class;
4122 if (need_direct_wrapper) {
4123 /* Already searched at the start */
4125 MonoMethodSignature *tmp_sig;
4127 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4128 GHashTable **cache_table = NULL;
4130 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4131 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4133 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4135 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4136 (GCompareFunc)runtime_invoke_signature_equal);
4138 /* from mono_marshal_find_in_cache */
4139 mono_marshal_lock ();
4140 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4141 mono_marshal_unlock ();
4148 /* Make a copy of the signature from the image mempool */
4150 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4154 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4156 csig->ret = &mono_defaults.object_class->byval_arg;
4157 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4158 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4160 csig->params [0] = &mono_defaults.object_class->byval_arg;
4161 csig->params [1] = &mono_defaults.int_class->byval_arg;
4162 csig->params [2] = &mono_defaults.int_class->byval_arg;
4163 csig->params [3] = &mono_defaults.int_class->byval_arg;
4166 /* This is called from runtime code so it has to be cdecl */
4167 csig->call_convention = MONO_CALL_C;
4170 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4171 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4175 param_names [0] = "this";
4176 param_names [1] = "params";
4177 param_names [2] = "exc";
4178 param_names [3] = "method";
4179 mono_mb_set_param_names (mb, param_names);
4181 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4184 if (need_direct_wrapper) {
4186 mb->skip_visibility = 1;
4188 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4189 info->d.runtime_invoke.method = method;
4190 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4192 /* taken from mono_mb_create_and_cache */
4193 mono_marshal_lock ();
4194 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4195 mono_marshal_unlock ();
4197 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4198 info->d.runtime_invoke.sig = callsig;
4200 /* Somebody may have created it before us */
4203 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4205 mono_marshal_lock ();
4206 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4208 GHashTable *direct_cache;
4210 g_hash_table_insert (cache, callsig, res);
4211 /* Can't insert it into wrapper_hash since the key is a signature */
4212 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4214 g_hash_table_insert (direct_cache, method, res);
4216 mono_free_method (newm);
4218 mono_marshal_unlock ();
4221 /* end mono_mb_create_and_cache */
4230 * mono_marshal_get_runtime_invoke_dynamic:
4232 * Return a method which can be used to invoke managed methods from native code
4234 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4235 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4236 * ARGS should point to an architecture specific structure containing
4237 * the arguments and space for the return value.
4238 * The other arguments are the same as for runtime_invoke (), except that
4239 * ARGS should contain the this argument too.
4240 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4241 * is only one copy of it, which is useful in full-aot.
4244 mono_marshal_get_runtime_invoke_dynamic (void)
4246 static MonoMethod *method;
4247 MonoMethodSignature *csig;
4248 MonoExceptionClause *clause;
4249 MonoMethodBuilder *mb;
4257 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4259 csig->ret = &mono_defaults.void_class->byval_arg;
4260 csig->params [0] = &mono_defaults.int_class->byval_arg;
4261 csig->params [1] = &mono_defaults.int_class->byval_arg;
4262 csig->params [2] = &mono_defaults.int_class->byval_arg;
4263 csig->params [3] = &mono_defaults.int_class->byval_arg;
4265 name = g_strdup ("runtime_invoke_dynamic");
4266 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4270 /* allocate local 0 (object) tmp */
4271 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4272 /* allocate local 1 (object) exc */
4273 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4275 /* cond set *exc to null */
4276 mono_mb_emit_byte (mb, CEE_LDARG_1);
4277 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4278 mono_mb_emit_byte (mb, 3);
4279 mono_mb_emit_byte (mb, CEE_LDARG_1);
4280 mono_mb_emit_byte (mb, CEE_LDNULL);
4281 mono_mb_emit_byte (mb, CEE_STIND_REF);
4283 emit_thread_force_interrupt_checkpoint (mb);
4285 mono_mb_emit_byte (mb, CEE_LDARG_0);
4286 mono_mb_emit_byte (mb, CEE_LDARG_2);
4287 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4288 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4290 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4292 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4293 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4294 clause->try_len = mono_mb_get_label (mb);
4297 clause->data.filter_offset = mono_mb_get_label (mb);
4299 mono_mb_emit_byte (mb, CEE_POP);
4300 mono_mb_emit_byte (mb, CEE_LDARG_1);
4301 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4302 mono_mb_emit_byte (mb, CEE_PREFIX1);
4303 mono_mb_emit_byte (mb, CEE_CGT_UN);
4304 mono_mb_emit_byte (mb, CEE_PREFIX1);
4305 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4307 clause->handler_offset = mono_mb_get_label (mb);
4310 /* store exception */
4311 mono_mb_emit_stloc (mb, 1);
4313 mono_mb_emit_byte (mb, CEE_LDARG_1);
4314 mono_mb_emit_ldloc (mb, 1);
4315 mono_mb_emit_byte (mb, CEE_STIND_REF);
4317 mono_mb_emit_byte (mb, CEE_LDNULL);
4318 mono_mb_emit_stloc (mb, 0);
4320 /* Check for the abort exception */
4321 mono_mb_emit_ldloc (mb, 1);
4322 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4323 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4325 /* Delay the abort exception */
4326 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4328 mono_mb_patch_short_branch (mb, posna);
4329 mono_mb_emit_branch (mb, CEE_LEAVE);
4331 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4333 mono_mb_set_clauses (mb, 1, clause);
4336 mono_mb_patch_branch (mb, pos);
4337 //mono_mb_emit_ldloc (mb, 0);
4338 mono_mb_emit_byte (mb, CEE_RET);
4339 #endif /* DISABLE_JIT */
4341 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4343 mono_marshal_lock ();
4344 /* double-checked locking */
4346 method = mono_mb_create (mb, csig, 16, info);
4348 mono_marshal_unlock ();
4356 * mono_marshal_get_runtime_invoke_for_sig:
4358 * Return a runtime invoke wrapper for a given signature.
4361 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4363 MonoMethodSignature *csig, *callsig;
4364 MonoMethodBuilder *mb;
4366 GHashTable *cache = NULL;
4367 GHashTable **cache_table = NULL;
4368 MonoMethod *res = NULL;
4370 const char *param_names [16];
4373 /* A simplified version of mono_marshal_get_runtime_invoke */
4375 image = mono_defaults.corlib;
4377 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4379 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4381 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4382 (GCompareFunc)runtime_invoke_signature_equal);
4384 /* from mono_marshal_find_in_cache */
4385 mono_marshal_lock ();
4386 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4387 mono_marshal_unlock ();
4394 /* Make a copy of the signature from the image mempool */
4395 callsig = mono_metadata_signature_dup_full (image, callsig);
4397 csig = mono_metadata_signature_alloc (image, 4);
4398 csig->ret = &mono_defaults.object_class->byval_arg;
4399 csig->params [0] = &mono_defaults.object_class->byval_arg;
4400 csig->params [1] = &mono_defaults.int_class->byval_arg;
4401 csig->params [2] = &mono_defaults.int_class->byval_arg;
4402 csig->params [3] = &mono_defaults.int_class->byval_arg;
4405 /* This is called from runtime code so it has to be cdecl */
4406 csig->call_convention = MONO_CALL_C;
4409 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4410 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4414 param_names [0] = "this";
4415 param_names [1] = "params";
4416 param_names [2] = "exc";
4417 param_names [3] = "method";
4418 mono_mb_set_param_names (mb, param_names);
4420 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4423 /* taken from mono_mb_create_and_cache */
4424 mono_marshal_lock ();
4425 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4426 mono_marshal_unlock ();
4428 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4429 info->d.runtime_invoke.sig = callsig;
4431 /* Somebody may have created it before us */
4434 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4436 mono_marshal_lock ();
4437 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4440 g_hash_table_insert (cache, callsig, res);
4442 mono_free_method (newm);
4444 mono_marshal_unlock ();
4447 /* end mono_mb_create_and_cache */
4456 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4458 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4459 klass->name_space, klass->name);
4461 mono_mb_emit_exception_marshal_directive (mb, msg);
4466 * generates IL code for the icall wrapper (the generated method
4467 * calls the unmanaged code in func)
4470 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4472 MonoMethodSignature *csig, *csig2;
4473 MonoMethodBuilder *mb;
4478 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4479 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4482 g_assert (sig->pinvoke);
4484 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4486 mb->method->save_lmf = 1;
4488 /* Add an explicit this argument */
4490 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4492 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4496 mono_mb_emit_byte (mb, CEE_LDARG_0);
4498 for (i = 0; i < sig->param_count; i++)
4499 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4501 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4502 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4503 mono_mb_emit_calli (mb, csig2);
4504 if (check_exceptions)
4505 emit_thread_interrupt_checkpoint (mb);
4506 mono_mb_emit_byte (mb, CEE_RET);
4509 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4511 if (csig->call_convention == MONO_CALL_VARARG)
4512 csig->call_convention = 0;
4514 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4515 info->d.icall.func = (gpointer)func;
4516 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4523 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4524 MonoMarshalSpec *spec,
4525 int conv_arg, MonoType **conv_arg_type,
4526 MarshalAction action)
4529 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4530 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4536 static MonoClass *ICustomMarshaler = NULL;
4537 static MonoMethod *cleanup_native, *cleanup_managed;
4538 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4539 MonoMethod *get_instance = NULL;
4540 MonoMethodBuilder *mb = m->mb;
4541 char *exception_msg = NULL;
4545 if (!ICustomMarshaler) {
4546 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4548 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4549 goto handle_exception;
4552 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4553 g_assert (cleanup_native);
4554 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4555 g_assert (cleanup_managed);
4556 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4557 g_assert (marshal_managed_to_native);
4558 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4559 g_assert (marshal_native_to_managed);
4561 mono_memory_barrier ();
4562 ICustomMarshaler = klass;
4565 if (spec->data.custom_data.image)
4566 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4568 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4569 g_assert (mtype != NULL);
4570 mono_error_assert_ok (&error);
4571 mklass = mono_class_from_mono_type (mtype);
4572 g_assert (mklass != NULL);
4574 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4575 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4577 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4579 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4580 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4581 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4582 (get_sig->params [0]->type != MONO_TYPE_STRING))
4583 get_instance = NULL;
4587 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);
4590 /* Throw exception and emit compensation code if neccesary */
4591 if (exception_msg) {
4593 case MARSHAL_ACTION_CONV_IN:
4594 case MARSHAL_ACTION_CONV_RESULT:
4595 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4596 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4597 mono_mb_emit_byte (mb, CEE_POP);
4599 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4600 g_free (exception_msg);
4603 case MARSHAL_ACTION_PUSH:
4604 mono_mb_emit_byte (mb, CEE_LDNULL);
4612 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4613 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4616 case MARSHAL_ACTION_CONV_IN:
4618 case MONO_TYPE_CLASS:
4619 case MONO_TYPE_OBJECT:
4620 case MONO_TYPE_STRING:
4621 case MONO_TYPE_ARRAY:
4622 case MONO_TYPE_SZARRAY:
4623 case MONO_TYPE_VALUETYPE:
4627 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4628 g_assert_not_reached ();
4632 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4634 mono_mb_emit_byte (mb, CEE_LDNULL);
4635 mono_mb_emit_stloc (mb, conv_arg);
4637 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4640 /* Minic MS.NET behavior */
4641 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4644 /* Check for null */
4645 mono_mb_emit_ldarg (mb, argnum);
4647 mono_mb_emit_byte (mb, CEE_LDIND_I);
4648 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4650 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4652 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4654 mono_mb_emit_ldarg (mb, argnum);
4656 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4658 if (t->type == MONO_TYPE_VALUETYPE) {
4660 * Since we can't determine the type of the argument, we
4661 * will assume the unmanaged function takes a pointer.
4663 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4665 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4668 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4669 mono_mb_emit_stloc (mb, conv_arg);
4671 mono_mb_patch_branch (mb, pos2);
4674 case MARSHAL_ACTION_CONV_OUT:
4675 /* Check for null */
4676 mono_mb_emit_ldloc (mb, conv_arg);
4677 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4680 mono_mb_emit_ldarg (mb, argnum);
4682 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4684 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4686 mono_mb_emit_ldloc (mb, conv_arg);
4687 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4688 mono_mb_emit_byte (mb, CEE_STIND_REF);
4689 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4690 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4692 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4694 mono_mb_emit_ldloc (mb, conv_arg);
4695 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4697 /* We have nowhere to store the result */
4698 mono_mb_emit_byte (mb, CEE_POP);
4701 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4703 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4705 mono_mb_emit_ldloc (mb, conv_arg);
4707 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4709 mono_mb_patch_branch (mb, pos2);
4712 case MARSHAL_ACTION_PUSH:
4714 mono_mb_emit_ldloc_addr (mb, conv_arg);
4716 mono_mb_emit_ldloc (mb, conv_arg);
4719 case MARSHAL_ACTION_CONV_RESULT:
4720 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4722 mono_mb_emit_stloc (mb, 3);
4724 mono_mb_emit_ldloc (mb, 3);
4725 mono_mb_emit_stloc (mb, loc1);
4727 /* Check for null */
4728 mono_mb_emit_ldloc (mb, 3);
4729 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4731 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4733 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4734 mono_mb_emit_byte (mb, CEE_DUP);
4736 mono_mb_emit_ldloc (mb, 3);
4737 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4738 mono_mb_emit_stloc (mb, 3);
4740 mono_mb_emit_ldloc (mb, loc1);
4741 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4743 mono_mb_patch_branch (mb, pos2);
4746 case MARSHAL_ACTION_MANAGED_CONV_IN:
4747 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4749 mono_mb_emit_byte (mb, CEE_LDNULL);
4750 mono_mb_emit_stloc (mb, conv_arg);
4752 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4755 /* Check for null */
4756 mono_mb_emit_ldarg (mb, argnum);
4758 mono_mb_emit_byte (mb, CEE_LDIND_I);
4759 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4761 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4762 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4764 mono_mb_emit_ldarg (mb, argnum);
4766 mono_mb_emit_byte (mb, CEE_LDIND_I);
4768 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4769 mono_mb_emit_stloc (mb, conv_arg);
4771 mono_mb_patch_branch (mb, pos2);
4774 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4775 g_assert (!t->byref);
4777 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4779 mono_mb_emit_stloc (mb, 3);
4781 mono_mb_emit_ldloc (mb, 3);
4782 mono_mb_emit_stloc (mb, loc1);
4784 /* Check for null */
4785 mono_mb_emit_ldloc (mb, 3);
4786 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4788 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4789 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4790 mono_mb_emit_byte (mb, CEE_DUP);
4792 mono_mb_emit_ldloc (mb, 3);
4793 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4794 mono_mb_emit_stloc (mb, 3);
4796 mono_mb_emit_ldloc (mb, loc1);
4797 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4799 mono_mb_patch_branch (mb, pos2);
4802 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4804 /* Check for null */
4805 mono_mb_emit_ldloc (mb, conv_arg);
4806 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4809 mono_mb_emit_ldarg (mb, argnum);
4811 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4813 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4815 mono_mb_emit_ldloc (mb, conv_arg);
4816 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4817 mono_mb_emit_byte (mb, CEE_STIND_I);
4820 /* Call CleanUpManagedData */
4821 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4823 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4825 mono_mb_emit_ldloc (mb, conv_arg);
4826 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4828 mono_mb_patch_branch (mb, pos2);
4832 g_assert_not_reached ();
4840 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4841 MonoMarshalSpec *spec,
4842 int conv_arg, MonoType **conv_arg_type,
4843 MarshalAction action)
4846 MonoMethodBuilder *mb = m->mb;
4849 case MARSHAL_ACTION_CONV_IN: {
4850 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4852 g_assert (t->type == MONO_TYPE_OBJECT);
4853 g_assert (!t->byref);
4855 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4856 mono_mb_emit_ldarg (mb, argnum);
4857 mono_mb_emit_icon (mb, encoding);
4858 mono_mb_emit_icon (mb, t->attrs);
4859 mono_mb_emit_icall (mb, mono_marshal_asany);
4860 mono_mb_emit_stloc (mb, conv_arg);
4864 case MARSHAL_ACTION_PUSH:
4865 mono_mb_emit_ldloc (mb, conv_arg);
4868 case MARSHAL_ACTION_CONV_OUT: {
4869 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4871 mono_mb_emit_ldarg (mb, argnum);
4872 mono_mb_emit_ldloc (mb, conv_arg);
4873 mono_mb_emit_icon (mb, encoding);
4874 mono_mb_emit_icon (mb, t->attrs);
4875 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4880 g_assert_not_reached ();
4887 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4888 MonoMarshalSpec *spec,
4889 int conv_arg, MonoType **conv_arg_type,
4890 MarshalAction action)
4893 MonoMethodBuilder *mb = m->mb;
4894 MonoClass *klass, *date_time_class;
4897 klass = mono_class_from_mono_type (t);
4899 date_time_class = mono_class_get_date_time_class ();
4902 case MARSHAL_ACTION_CONV_IN:
4903 if (klass == date_time_class) {
4904 /* Convert it to an OLE DATE type */
4905 static MonoMethod *to_oadate;
4908 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4909 g_assert (to_oadate);
4911 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4914 mono_mb_emit_ldarg (mb, argnum);
4915 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4918 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4920 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4922 mono_mb_emit_ldarg_addr (mb, argnum);
4923 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4924 mono_mb_emit_stloc (mb, conv_arg);
4928 mono_mb_patch_branch (mb, pos);
4932 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4933 klass->blittable || klass->enumtype)
4936 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4938 /* store the address of the source into local variable 0 */
4940 mono_mb_emit_ldarg (mb, argnum);
4942 mono_mb_emit_ldarg_addr (mb, argnum);
4944 mono_mb_emit_stloc (mb, 0);
4946 /* allocate space for the native struct and
4947 * store the address into local variable 1 (dest) */
4948 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4949 mono_mb_emit_byte (mb, CEE_PREFIX1);
4950 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4951 mono_mb_emit_stloc (mb, conv_arg);
4954 mono_mb_emit_ldloc (mb, 0);
4955 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4958 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4960 mono_mb_emit_ldloc (mb, conv_arg);
4961 mono_mb_emit_stloc (mb, 1);
4963 /* emit valuetype conversion code */
4964 emit_struct_conv (mb, klass, FALSE);
4968 mono_mb_patch_branch (mb, pos);
4971 case MARSHAL_ACTION_PUSH:
4972 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4974 g_assert (!t->byref);
4976 /* Have to change the signature since the vtype is passed byref */
4977 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4979 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4980 klass->blittable || klass->enumtype)
4981 mono_mb_emit_ldarg_addr (mb, argnum);
4983 mono_mb_emit_ldloc (mb, conv_arg);
4987 if (klass == date_time_class) {
4989 mono_mb_emit_ldloc_addr (mb, conv_arg);
4991 mono_mb_emit_ldloc (mb, conv_arg);
4995 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4996 klass->blittable || klass->enumtype) {
4997 mono_mb_emit_ldarg (mb, argnum);
5000 mono_mb_emit_ldloc (mb, conv_arg);
5002 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5003 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5007 case MARSHAL_ACTION_CONV_OUT:
5008 if (klass == date_time_class) {
5009 /* Convert from an OLE DATE type */
5010 static MonoMethod *from_oadate;
5015 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5017 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5018 g_assert (from_oadate);
5020 mono_mb_emit_ldarg (mb, argnum);
5021 mono_mb_emit_ldloc (mb, conv_arg);
5022 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5023 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5028 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5029 klass->blittable || klass->enumtype)
5033 /* dst = argument */
5034 mono_mb_emit_ldarg (mb, argnum);
5035 mono_mb_emit_stloc (mb, 1);
5037 mono_mb_emit_ldloc (mb, 1);
5038 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5040 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5041 /* src = tmp_locals [i] */
5042 mono_mb_emit_ldloc (mb, conv_arg);
5043 mono_mb_emit_stloc (mb, 0);
5045 /* emit valuetype conversion code */
5046 emit_struct_conv (mb, klass, TRUE);
5050 emit_struct_free (mb, klass, conv_arg);
5053 mono_mb_patch_branch (mb, pos);
5056 case MARSHAL_ACTION_CONV_RESULT:
5057 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5059 mono_mb_emit_stloc (mb, 3);
5063 /* load pointer to returned value type */
5064 g_assert (m->vtaddr_var);
5065 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5066 /* store the address of the source into local variable 0 */
5067 mono_mb_emit_stloc (mb, 0);
5069 mono_mb_emit_ldloc_addr (mb, 3);
5070 mono_mb_emit_stloc (mb, 1);
5072 /* emit valuetype conversion code */
5073 emit_struct_conv (mb, klass, TRUE);
5076 case MARSHAL_ACTION_MANAGED_CONV_IN:
5077 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5078 klass->blittable || klass->enumtype) {
5083 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5085 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5089 mono_mb_emit_ldarg (mb, argnum);
5091 mono_mb_emit_ldarg_addr (mb, argnum);
5092 mono_mb_emit_stloc (mb, 0);
5095 mono_mb_emit_ldloc (mb, 0);
5096 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5099 mono_mb_emit_ldloc_addr (mb, conv_arg);
5100 mono_mb_emit_stloc (mb, 1);
5102 /* emit valuetype conversion code */
5103 emit_struct_conv (mb, klass, TRUE);
5106 mono_mb_patch_branch (mb, pos);
5109 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5110 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5111 klass->blittable || klass->enumtype) {
5115 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5118 /* Check for null */
5119 mono_mb_emit_ldarg (mb, argnum);
5120 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5123 mono_mb_emit_ldloc_addr (mb, conv_arg);
5124 mono_mb_emit_stloc (mb, 0);
5127 mono_mb_emit_ldarg (mb, argnum);
5128 mono_mb_emit_stloc (mb, 1);
5130 /* emit valuetype conversion code */
5131 emit_struct_conv (mb, klass, FALSE);
5133 mono_mb_patch_branch (mb, pos2);
5136 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5137 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5138 klass->blittable || klass->enumtype) {
5139 mono_mb_emit_stloc (mb, 3);
5144 /* load pointer to returned value type */
5145 g_assert (m->vtaddr_var);
5146 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5148 /* store the address of the source into local variable 0 */
5149 mono_mb_emit_stloc (mb, 0);
5150 /* allocate space for the native struct and
5151 * store the address into dst_ptr */
5152 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5153 m->retobj_class = klass;
5154 g_assert (m->retobj_var);
5155 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5156 mono_mb_emit_byte (mb, CEE_CONV_I);
5157 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5158 mono_mb_emit_stloc (mb, 1);
5159 mono_mb_emit_ldloc (mb, 1);
5160 mono_mb_emit_stloc (mb, m->retobj_var);
5162 /* emit valuetype conversion code */
5163 emit_struct_conv (mb, klass, FALSE);
5167 g_assert_not_reached ();
5174 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5175 MonoMarshalSpec *spec,
5176 int conv_arg, MonoType **conv_arg_type,
5177 MarshalAction action)
5181 case MARSHAL_ACTION_CONV_IN:
5182 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5184 case MARSHAL_ACTION_MANAGED_CONV_IN:
5185 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5189 MonoMethodBuilder *mb = m->mb;
5190 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5191 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5195 case MARSHAL_ACTION_CONV_IN:
5196 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5197 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5200 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5203 mono_mb_emit_ldarg (mb, argnum);
5204 mono_mb_emit_byte (mb, CEE_LDIND_I);
5206 mono_mb_emit_ldarg (mb, argnum);
5209 if (conv == MONO_MARSHAL_CONV_INVALID) {
5210 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5211 mono_mb_emit_exception_marshal_directive (mb, msg);
5213 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5215 mono_mb_emit_stloc (mb, conv_arg);
5219 case MARSHAL_ACTION_CONV_OUT:
5220 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5221 if (conv == MONO_MARSHAL_CONV_INVALID) {
5222 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5223 mono_mb_emit_exception_marshal_directive (mb, msg);
5227 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5228 static MonoMethod *m;
5231 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5236 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5237 mono_mb_emit_exception_marshal_directive (mb, msg);
5242 * Have to allocate a new string with the same length as the original, and
5243 * copy the contents of the buffer pointed to by CONV_ARG into it.
5245 g_assert (t->byref);
5246 mono_mb_emit_ldarg (mb, argnum);
5247 mono_mb_emit_ldloc (mb, conv_arg);
5248 mono_mb_emit_ldarg (mb, argnum);
5249 mono_mb_emit_byte (mb, CEE_LDIND_I);
5250 mono_mb_emit_managed_call (mb, m, NULL);
5251 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5252 mono_mb_emit_byte (mb, CEE_STIND_REF);
5253 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5255 mono_mb_emit_ldarg (mb, argnum);
5256 mono_mb_emit_ldloc (mb, conv_arg);
5257 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5258 mono_mb_emit_byte (mb, stind_op);
5263 mono_mb_emit_ldloc (mb, conv_arg);
5264 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5265 mono_mb_emit_icall (mb, mono_free_bstr);
5267 mono_mb_emit_icall (mb, mono_marshal_free);
5271 case MARSHAL_ACTION_PUSH:
5272 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5273 mono_mb_emit_ldloc_addr (mb, conv_arg);
5275 mono_mb_emit_ldloc (mb, conv_arg);
5278 case MARSHAL_ACTION_CONV_RESULT:
5279 mono_mb_emit_stloc (mb, 0);
5281 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5282 if (conv == MONO_MARSHAL_CONV_INVALID) {
5283 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5284 mono_mb_emit_exception_marshal_directive (mb, msg);
5288 mono_mb_emit_ldloc (mb, 0);
5289 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5290 mono_mb_emit_stloc (mb, 3);
5292 /* free the string */
5293 mono_mb_emit_ldloc (mb, 0);
5294 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5295 mono_mb_emit_icall (mb, mono_free_bstr);
5297 mono_mb_emit_icall (mb, mono_marshal_free);
5300 case MARSHAL_ACTION_MANAGED_CONV_IN:
5301 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5303 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5306 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5310 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5311 if (conv == MONO_MARSHAL_CONV_INVALID) {
5312 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5313 mono_mb_emit_exception_marshal_directive (mb, msg);
5317 mono_mb_emit_ldarg (mb, argnum);
5319 mono_mb_emit_byte (mb, CEE_LDIND_I);
5320 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5321 mono_mb_emit_stloc (mb, conv_arg);
5324 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5328 mono_mb_emit_ldarg (mb, argnum);
5329 mono_mb_emit_ldloc (mb, conv_arg);
5330 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5331 mono_mb_emit_byte (mb, stind_op);
5336 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5337 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5338 /* We need to make a copy so the caller is able to free it */
5339 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5341 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5342 mono_mb_emit_stloc (mb, 3);
5346 g_assert_not_reached ();
5354 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5355 MonoMarshalSpec *spec, int conv_arg,
5356 MonoType **conv_arg_type, MarshalAction action)
5359 if (action == MARSHAL_ACTION_CONV_IN)
5360 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5362 MonoMethodBuilder *mb = m->mb;
5365 case MARSHAL_ACTION_CONV_IN: {
5366 MonoType *intptr_type;
5367 int dar_release_slot, pos;
5369 intptr_type = &mono_defaults.int_class->byval_arg;
5370 conv_arg = mono_mb_add_local (mb, intptr_type);
5371 *conv_arg_type = intptr_type;
5373 if (!sh_dangerous_add_ref)
5374 init_safe_handle ();
5376 mono_mb_emit_ldarg (mb, argnum);
5377 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5378 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5380 mono_mb_patch_branch (mb, pos);
5383 * My tests in show that ref SafeHandles are not really
5384 * passed as ref objects. Instead a NULL is passed as the
5387 mono_mb_emit_icon (mb, 0);
5388 mono_mb_emit_stloc (mb, conv_arg);
5392 /* Create local to hold the ref parameter to DangerousAddRef */
5393 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5395 /* set release = false; */
5396 mono_mb_emit_icon (mb, 0);
5397 mono_mb_emit_stloc (mb, dar_release_slot);
5399 /* safehandle.DangerousAddRef (ref release) */
5400 mono_mb_emit_ldarg (mb, argnum);
5401 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5402 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5404 /* Pull the handle field from SafeHandle */
5405 mono_mb_emit_ldarg (mb, argnum);
5406 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5407 mono_mb_emit_byte (mb, CEE_LDIND_I);
5408 mono_mb_emit_stloc (mb, conv_arg);
5413 case MARSHAL_ACTION_PUSH:
5415 mono_mb_emit_ldloc_addr (mb, conv_arg);
5417 mono_mb_emit_ldloc (mb, conv_arg);
5420 case MARSHAL_ACTION_CONV_OUT: {
5421 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5422 int dar_release_slot = conv_arg + 1;
5425 if (!sh_dangerous_release)
5426 init_safe_handle ();
5432 * My tests indicate that ref SafeHandles parameters are not actually
5433 * passed by ref, but instead a new Handle is created regardless of
5434 * whether a change happens in the unmanaged side.
5436 * Also, the Handle is created before calling into unmanaged code,
5437 * but we do not support that mechanism (getting to the original
5438 * handle) and it makes no difference where we create this
5440 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5442 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5445 /* refval = new SafeHandleDerived ()*/
5446 mono_mb_emit_ldarg (mb, argnum);
5447 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5448 mono_mb_emit_byte (mb, CEE_STIND_REF);
5450 /* refval.handle = returned_handle */
5451 mono_mb_emit_ldarg (mb, argnum);
5452 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5453 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5454 mono_mb_emit_ldloc (mb, conv_arg);
5455 mono_mb_emit_byte (mb, CEE_STIND_I);
5457 mono_mb_emit_ldloc (mb, dar_release_slot);
5458 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5459 mono_mb_emit_ldarg (mb, argnum);
5460 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5461 mono_mb_patch_branch (mb, label_next);
5466 case MARSHAL_ACTION_CONV_RESULT: {
5467 MonoMethod *ctor = NULL;
5468 int intptr_handle_slot;
5470 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5471 mono_mb_emit_byte (mb, CEE_POP);
5472 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5476 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5478 mono_mb_emit_byte (mb, CEE_POP);
5479 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5482 /* Store the IntPtr results into a local */
5483 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5484 mono_mb_emit_stloc (mb, intptr_handle_slot);
5486 /* Create return value */
5487 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5488 mono_mb_emit_stloc (mb, 3);
5490 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5491 mono_mb_emit_ldloc (mb, 3);
5492 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5493 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5494 mono_mb_emit_byte (mb, CEE_STIND_I);
5498 case MARSHAL_ACTION_MANAGED_CONV_IN:
5499 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5502 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5503 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5506 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5507 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5510 printf ("Unhandled case for MarshalAction: %d\n", action);
5518 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5519 MonoMarshalSpec *spec, int conv_arg,
5520 MonoType **conv_arg_type, MarshalAction action)
5523 if (action == MARSHAL_ACTION_CONV_IN)
5524 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5526 MonoMethodBuilder *mb = m->mb;
5529 case MARSHAL_ACTION_CONV_IN: {
5530 MonoType *intptr_type;
5532 intptr_type = &mono_defaults.int_class->byval_arg;
5533 conv_arg = mono_mb_add_local (mb, intptr_type);
5534 *conv_arg_type = intptr_type;
5537 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5538 mono_mb_emit_exception_marshal_directive (mb, msg);
5541 mono_mb_emit_ldarg_addr (mb, argnum);
5542 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5543 mono_mb_emit_byte (mb, CEE_ADD);
5544 mono_mb_emit_byte (mb, CEE_LDIND_I);
5545 mono_mb_emit_stloc (mb, conv_arg);
5549 case MARSHAL_ACTION_PUSH:
5550 mono_mb_emit_ldloc (mb, conv_arg);
5553 case MARSHAL_ACTION_CONV_OUT: {
5554 /* no resource release required */
5558 case MARSHAL_ACTION_CONV_RESULT: {
5559 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5560 mono_mb_emit_exception_marshal_directive (mb, msg);
5564 case MARSHAL_ACTION_MANAGED_CONV_IN:
5565 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5568 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5569 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5572 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5573 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5576 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5584 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5585 MonoMarshalSpec *spec,
5586 int conv_arg, MonoType **conv_arg_type,
5587 MarshalAction action)
5590 if (action == MARSHAL_ACTION_CONV_IN)
5591 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5593 MonoMethodBuilder *mb = m->mb;
5594 MonoClass *klass = mono_class_from_mono_type (t);
5598 case MARSHAL_ACTION_CONV_IN:
5599 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5600 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5602 m->orig_conv_args [argnum] = 0;
5604 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5605 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5606 mono_mb_emit_exception_marshal_directive (mb, msg);
5610 if (klass->delegate) {
5612 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5613 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5614 mono_mb_emit_exception_marshal_directive (mb, msg);
5616 mono_mb_emit_byte (mb, CEE_LDNULL);
5617 mono_mb_emit_stloc (mb, conv_arg);
5619 mono_mb_emit_ldarg (mb, argnum);
5620 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5621 mono_mb_emit_stloc (mb, conv_arg);
5623 } else if (klass == mono_defaults.stringbuilder_class) {
5624 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5625 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5629 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5630 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5631 mono_mb_emit_exception_marshal_directive (mb, msg);
5637 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5640 if (conv == MONO_MARSHAL_CONV_INVALID) {
5641 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5642 mono_mb_emit_exception_marshal_directive (mb, msg);
5646 mono_mb_emit_ldarg (mb, argnum);
5648 mono_mb_emit_byte (mb, CEE_LDIND_I);
5650 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5651 mono_mb_emit_stloc (mb, conv_arg);
5652 } else if (klass->blittable) {
5653 mono_mb_emit_byte (mb, CEE_LDNULL);
5654 mono_mb_emit_stloc (mb, conv_arg);
5656 mono_mb_emit_ldarg (mb, argnum);
5657 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5659 mono_mb_emit_ldarg (mb, argnum);
5660 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5661 mono_mb_emit_stloc (mb, conv_arg);
5663 mono_mb_patch_branch (mb, pos);
5666 mono_mb_emit_byte (mb, CEE_LDNULL);
5667 mono_mb_emit_stloc (mb, conv_arg);
5670 /* we dont need any conversions for out parameters */
5671 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5674 mono_mb_emit_ldarg (mb, argnum);
5675 mono_mb_emit_byte (mb, CEE_LDIND_I);
5678 mono_mb_emit_ldarg (mb, argnum);
5679 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5680 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5683 /* store the address of the source into local variable 0 */
5684 mono_mb_emit_stloc (mb, 0);
5685 mono_mb_emit_ldloc (mb, 0);
5686 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5688 /* allocate space for the native struct and store the address */
5689 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5690 mono_mb_emit_byte (mb, CEE_PREFIX1);
5691 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5692 mono_mb_emit_stloc (mb, conv_arg);
5695 /* Need to store the original buffer so we can free it later */
5696 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5697 mono_mb_emit_ldloc (mb, conv_arg);
5698 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5701 /* set the src_ptr */
5702 mono_mb_emit_ldloc (mb, 0);
5703 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5704 mono_mb_emit_stloc (mb, 0);
5707 mono_mb_emit_ldloc (mb, conv_arg);
5708 mono_mb_emit_stloc (mb, 1);
5710 /* emit valuetype conversion code */
5711 emit_struct_conv (mb, klass, FALSE);
5713 mono_mb_patch_branch (mb, pos);
5717 case MARSHAL_ACTION_CONV_OUT:
5718 if (klass == mono_defaults.stringbuilder_class) {
5720 MonoMarshalNative encoding;
5721 MonoMarshalConv conv;
5723 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5724 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5726 g_assert (encoding != -1);
5729 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5733 mono_mb_emit_ldarg (mb, argnum);
5734 mono_mb_emit_ldloc (mb, conv_arg);
5737 case MONO_NATIVE_LPWSTR:
5738 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5740 case MONO_NATIVE_LPSTR:
5741 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5743 case MONO_NATIVE_UTF8STR:
5744 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5747 g_assert_not_reached ();
5750 mono_mb_emit_byte (mb, CEE_STIND_REF);
5752 mono_mb_emit_ldarg (mb, argnum);
5753 mono_mb_emit_ldloc (mb, conv_arg);
5755 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5759 mono_mb_emit_ldloc (mb, conv_arg);
5760 mono_mb_emit_icall (mb, mono_marshal_free);
5765 if (klass->delegate) {
5767 mono_mb_emit_ldarg (mb, argnum);
5768 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5769 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5770 mono_mb_emit_ldloc (mb, conv_arg);
5771 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5772 mono_mb_emit_byte (mb, CEE_STIND_REF);
5777 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5778 /* allocate a new object */
5779 mono_mb_emit_ldarg (mb, argnum);
5780 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5781 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5782 mono_mb_emit_byte (mb, CEE_STIND_REF);
5785 /* dst = *argument */
5786 mono_mb_emit_ldarg (mb, argnum);
5789 mono_mb_emit_byte (mb, CEE_LDIND_I);
5791 mono_mb_emit_stloc (mb, 1);
5793 mono_mb_emit_ldloc (mb, 1);
5794 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5796 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5797 mono_mb_emit_ldloc (mb, 1);
5798 mono_mb_emit_icon (mb, sizeof (MonoObject));
5799 mono_mb_emit_byte (mb, CEE_ADD);
5800 mono_mb_emit_stloc (mb, 1);
5802 /* src = tmp_locals [i] */
5803 mono_mb_emit_ldloc (mb, conv_arg);
5804 mono_mb_emit_stloc (mb, 0);
5806 /* emit valuetype conversion code */
5807 emit_struct_conv (mb, klass, TRUE);
5809 /* Free the structure returned by the native code */
5810 emit_struct_free (mb, klass, conv_arg);
5812 if (m->orig_conv_args [argnum]) {
5814 * If the native function changed the pointer, then free
5815 * the original structure plus the new pointer.
5817 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5818 mono_mb_emit_ldloc (mb, conv_arg);
5819 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5821 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5822 g_assert (m->orig_conv_args [argnum]);
5824 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5827 mono_mb_emit_ldloc (mb, conv_arg);
5828 mono_mb_emit_icall (mb, mono_marshal_free);
5830 mono_mb_patch_branch (mb, pos2);
5834 /* Free the original structure passed to native code */
5835 emit_struct_free (mb, klass, conv_arg);
5837 mono_mb_patch_branch (mb, pos);
5840 case MARSHAL_ACTION_PUSH:
5842 mono_mb_emit_ldloc_addr (mb, conv_arg);
5844 mono_mb_emit_ldloc (mb, conv_arg);
5847 case MARSHAL_ACTION_CONV_RESULT:
5848 if (klass->delegate) {
5849 g_assert (!t->byref);
5850 mono_mb_emit_stloc (mb, 0);
5851 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5852 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5853 mono_mb_emit_ldloc (mb, 0);
5854 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5855 mono_mb_emit_stloc (mb, 3);
5856 } else if (klass == mono_defaults.stringbuilder_class){
5860 mono_mb_emit_stloc (mb, 0);
5862 /* Make a copy since emit_conv modifies local 0 */
5863 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5864 mono_mb_emit_ldloc (mb, 0);
5865 mono_mb_emit_stloc (mb, loc);
5867 mono_mb_emit_byte (mb, CEE_LDNULL);
5868 mono_mb_emit_stloc (mb, 3);
5870 mono_mb_emit_ldloc (mb, 0);
5871 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5873 /* allocate result object */
5875 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5876 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5877 mono_mb_emit_stloc (mb, 3);
5881 mono_mb_emit_ldloc (mb, 3);
5882 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5883 mono_mb_emit_stloc (mb, 1);
5885 /* emit conversion code */
5886 emit_struct_conv (mb, klass, TRUE);
5888 emit_struct_free (mb, klass, loc);
5890 /* Free the pointer allocated by unmanaged code */
5891 mono_mb_emit_ldloc (mb, loc);
5892 mono_mb_emit_icall (mb, mono_marshal_free);
5893 mono_mb_patch_branch (mb, pos);
5897 case MARSHAL_ACTION_MANAGED_CONV_IN:
5898 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5900 if (klass->delegate) {
5901 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5902 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5903 mono_mb_emit_ldarg (mb, argnum);
5905 mono_mb_emit_byte (mb, CEE_LDIND_I);
5906 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5907 mono_mb_emit_stloc (mb, conv_arg);
5911 if (klass == mono_defaults.stringbuilder_class) {
5912 MonoMarshalNative encoding;
5914 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5917 g_assert (encoding == MONO_NATIVE_LPSTR || encoding == MONO_NATIVE_UTF8STR);
5919 g_assert (!t->byref);
5920 g_assert (encoding != -1);
5922 mono_mb_emit_ldarg (mb, argnum);
5923 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5924 mono_mb_emit_stloc (mb, conv_arg);
5928 /* The class can not have an automatic layout */
5929 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5930 mono_mb_emit_auto_layout_exception (mb, klass);
5934 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5935 mono_mb_emit_byte (mb, CEE_LDNULL);
5936 mono_mb_emit_stloc (mb, conv_arg);
5941 mono_mb_emit_ldarg (mb, argnum);
5945 /* Check for NULL and raise an exception */
5946 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5948 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5950 mono_mb_patch_branch (mb, pos2);
5951 mono_mb_emit_ldarg (mb, argnum);
5952 mono_mb_emit_byte (mb, CEE_LDIND_I);
5955 mono_mb_emit_stloc (mb, 0);
5957 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5958 mono_mb_emit_stloc (mb, conv_arg);
5960 mono_mb_emit_ldloc (mb, 0);
5961 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5963 /* Create and set dst */
5964 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5965 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5966 mono_mb_emit_stloc (mb, conv_arg);
5967 mono_mb_emit_ldloc (mb, conv_arg);
5968 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5969 mono_mb_emit_stloc (mb, 1);
5971 /* emit valuetype conversion code */
5972 emit_struct_conv (mb, klass, TRUE);
5974 mono_mb_patch_branch (mb, pos);
5977 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5978 if (klass->delegate) {
5981 mono_mb_emit_ldarg (mb, argnum);
5982 mono_mb_emit_ldloc (mb, conv_arg);
5983 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5984 mono_mb_emit_byte (mb, stind_op);
5990 /* Check for null */
5991 mono_mb_emit_ldloc (mb, conv_arg);
5992 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5993 mono_mb_emit_ldarg (mb, argnum);
5994 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5995 mono_mb_emit_byte (mb, CEE_STIND_REF);
5996 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5998 mono_mb_patch_branch (mb, pos);
6001 mono_mb_emit_ldloc (mb, conv_arg);
6002 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6003 mono_mb_emit_stloc (mb, 0);
6005 /* Allocate and set dest */
6006 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6007 mono_mb_emit_byte (mb, CEE_CONV_I);
6008 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6009 mono_mb_emit_stloc (mb, 1);
6011 /* Update argument pointer */
6012 mono_mb_emit_ldarg (mb, argnum);
6013 mono_mb_emit_ldloc (mb, 1);
6014 mono_mb_emit_byte (mb, CEE_STIND_I);
6016 /* emit valuetype conversion code */
6017 emit_struct_conv (mb, klass, FALSE);
6019 mono_mb_patch_branch (mb, pos2);
6020 } else if (klass == mono_defaults.stringbuilder_class) {
6021 // FIXME: What to do here ?
6023 /* byval [Out] marshalling */
6025 /* FIXME: Handle null */
6028 mono_mb_emit_ldloc (mb, conv_arg);
6029 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6030 mono_mb_emit_stloc (mb, 0);
6033 mono_mb_emit_ldarg (mb, argnum);
6034 mono_mb_emit_stloc (mb, 1);
6036 /* emit valuetype conversion code */
6037 emit_struct_conv (mb, klass, FALSE);
6041 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6042 if (klass->delegate) {
6043 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6044 mono_mb_emit_stloc (mb, 3);
6048 /* The class can not have an automatic layout */
6049 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6050 mono_mb_emit_auto_layout_exception (mb, klass);
6054 mono_mb_emit_stloc (mb, 0);
6055 /* Check for null */
6056 mono_mb_emit_ldloc (mb, 0);
6057 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6058 mono_mb_emit_byte (mb, CEE_LDNULL);
6059 mono_mb_emit_stloc (mb, 3);
6060 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6062 mono_mb_patch_branch (mb, pos);
6065 mono_mb_emit_ldloc (mb, 0);
6066 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6067 mono_mb_emit_stloc (mb, 0);
6069 /* Allocate and set dest */
6070 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6071 mono_mb_emit_byte (mb, CEE_CONV_I);
6072 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6073 mono_mb_emit_byte (mb, CEE_DUP);
6074 mono_mb_emit_stloc (mb, 1);
6075 mono_mb_emit_stloc (mb, 3);
6077 emit_struct_conv (mb, klass, FALSE);
6079 mono_mb_patch_branch (mb, pos2);
6083 g_assert_not_reached ();
6094 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6095 MonoMarshalSpec *spec,
6096 int conv_arg, MonoType **conv_arg_type,
6097 MarshalAction action)
6099 MonoMethodBuilder *mb = m->mb;
6100 static MonoMethod *get_object_for_native_variant = NULL;
6101 static MonoMethod *get_native_variant_for_object = NULL;
6103 if (!get_object_for_native_variant)
6104 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6105 g_assert (get_object_for_native_variant);
6107 if (!get_native_variant_for_object)
6108 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6109 g_assert (get_native_variant_for_object);
6112 case MARSHAL_ACTION_CONV_IN: {
6113 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6116 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6118 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6120 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6123 mono_mb_emit_ldarg (mb, argnum);
6125 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6126 mono_mb_emit_ldloc_addr (mb, conv_arg);
6127 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6131 case MARSHAL_ACTION_CONV_OUT: {
6132 static MonoMethod *variant_clear = NULL;
6135 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6136 g_assert (variant_clear);
6139 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6140 mono_mb_emit_ldarg (mb, argnum);
6141 mono_mb_emit_ldloc_addr (mb, conv_arg);
6142 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6143 mono_mb_emit_byte (mb, CEE_STIND_REF);
6146 mono_mb_emit_ldloc_addr (mb, conv_arg);
6147 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6151 case MARSHAL_ACTION_PUSH:
6153 mono_mb_emit_ldloc_addr (mb, conv_arg);
6155 mono_mb_emit_ldloc (mb, conv_arg);
6158 case MARSHAL_ACTION_CONV_RESULT: {
6159 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6160 mono_mb_emit_exception_marshal_directive (mb, msg);
6164 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6165 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6168 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6170 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6172 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6176 mono_mb_emit_ldarg (mb, argnum);
6178 mono_mb_emit_ldarg_addr (mb, argnum);
6179 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6180 mono_mb_emit_stloc (mb, conv_arg);
6184 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6185 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6186 mono_mb_emit_ldloc (mb, conv_arg);
6187 mono_mb_emit_ldarg (mb, argnum);
6188 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6193 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6194 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6195 mono_mb_emit_exception_marshal_directive (mb, msg);
6200 g_assert_not_reached ();
6206 #endif /* DISABLE_COM */
6207 #endif /* DISABLE_JIT */
6210 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6212 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6213 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6215 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6217 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6229 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6230 MonoMarshalSpec *spec,
6231 int conv_arg, MonoType **conv_arg_type,
6232 MarshalAction action)
6236 case MARSHAL_ACTION_CONV_IN:
6237 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6239 case MARSHAL_ACTION_MANAGED_CONV_IN:
6240 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6244 MonoMethodBuilder *mb = m->mb;
6245 MonoClass *klass = mono_class_from_mono_type (t);
6246 gboolean need_convert, need_free;
6247 MonoMarshalNative encoding;
6249 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6252 case MARSHAL_ACTION_CONV_IN:
6253 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6254 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6256 if (klass->element_class->blittable) {
6257 mono_mb_emit_ldarg (mb, argnum);
6259 mono_mb_emit_byte (mb, CEE_LDIND_I);
6260 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6261 mono_mb_emit_stloc (mb, conv_arg);
6264 guint32 label1, label2, label3;
6265 int index_var, src_var, dest_ptr, esize;
6266 MonoMarshalConv conv;
6267 gboolean is_string = FALSE;
6269 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6271 eklass = klass->element_class;
6273 if (eklass == mono_defaults.string_class) {
6275 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6277 else if (eklass == mono_defaults.stringbuilder_class) {
6279 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6282 conv = MONO_MARSHAL_CONV_INVALID;
6284 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6285 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6286 mono_mb_emit_exception_marshal_directive (mb, msg);
6290 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6291 mono_mb_emit_ldarg (mb, argnum);
6293 mono_mb_emit_byte (mb, CEE_LDIND_I);
6294 mono_mb_emit_stloc (mb, src_var);
6297 mono_mb_emit_ldloc (mb, src_var);
6298 mono_mb_emit_stloc (mb, conv_arg);
6299 mono_mb_emit_ldloc (mb, src_var);
6300 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6303 esize = sizeof (gpointer);
6304 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6305 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6307 esize = mono_class_native_size (eklass, NULL);
6309 /* allocate space for the native struct and store the address */
6310 mono_mb_emit_icon (mb, esize);
6311 mono_mb_emit_ldloc (mb, src_var);
6312 mono_mb_emit_byte (mb, CEE_LDLEN);
6314 if (eklass == mono_defaults.string_class) {
6315 /* Make the array bigger for the terminating null */
6316 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6317 mono_mb_emit_byte (mb, CEE_ADD);
6319 mono_mb_emit_byte (mb, CEE_MUL);
6320 mono_mb_emit_byte (mb, CEE_PREFIX1);
6321 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6322 mono_mb_emit_stloc (mb, conv_arg);
6324 mono_mb_emit_ldloc (mb, conv_arg);
6325 mono_mb_emit_stloc (mb, dest_ptr);
6327 /* Emit marshalling loop */
6328 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6329 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6330 mono_mb_emit_stloc (mb, index_var);
6331 label2 = mono_mb_get_label (mb);
6332 mono_mb_emit_ldloc (mb, index_var);
6333 mono_mb_emit_ldloc (mb, src_var);
6334 mono_mb_emit_byte (mb, CEE_LDLEN);
6335 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6337 /* Emit marshalling code */
6341 mono_mb_emit_ldloc (mb, dest_ptr);
6342 mono_mb_emit_ldloc (mb, src_var);
6343 mono_mb_emit_ldloc (mb, index_var);
6344 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6345 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6346 mono_mb_emit_byte (mb, stind_op);
6348 /* set the src_ptr */
6349 mono_mb_emit_ldloc (mb, src_var);
6350 mono_mb_emit_ldloc (mb, index_var);
6351 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6352 mono_mb_emit_stloc (mb, 0);
6355 mono_mb_emit_ldloc (mb, dest_ptr);
6356 mono_mb_emit_stloc (mb, 1);
6358 /* emit valuetype conversion code */
6359 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6362 mono_mb_emit_add_to_local (mb, index_var, 1);
6363 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6365 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6367 mono_mb_patch_branch (mb, label3);
6369 if (eklass == mono_defaults.string_class) {
6370 /* Null terminate */
6371 mono_mb_emit_ldloc (mb, dest_ptr);
6372 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6373 mono_mb_emit_byte (mb, CEE_STIND_REF);
6376 mono_mb_patch_branch (mb, label1);
6381 case MARSHAL_ACTION_CONV_OUT:
6382 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6383 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);
6384 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6387 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6388 int param_num = spec->data.array_data.param_num;
6389 MonoType *param_type;
6391 param_type = m->sig->params [param_num];
6393 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6394 char *msg = g_strdup ("Not implemented.");
6395 mono_mb_emit_exception_marshal_directive (mb, msg);
6400 mono_mb_emit_ldarg (mb, argnum);
6402 /* Create the managed array */
6403 mono_mb_emit_ldarg (mb, param_num);
6404 if (m->sig->params [param_num]->byref)
6405 // FIXME: Support other types
6406 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6407 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6408 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6409 /* Store into argument */
6410 mono_mb_emit_byte (mb, CEE_STIND_REF);
6414 if (need_convert || need_free) {
6415 /* FIXME: Optimize blittable case */
6417 guint32 label1, label2, label3;
6418 int index_var, src_ptr, loc, esize;
6420 eklass = klass->element_class;
6421 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6422 esize = sizeof (gpointer);
6423 else if (eklass == mono_defaults.char_class)
6424 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6426 esize = mono_class_native_size (eklass, NULL);
6427 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6428 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6431 mono_mb_emit_ldarg (mb, argnum);
6433 mono_mb_emit_byte (mb, CEE_LDIND_I);
6434 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6436 mono_mb_emit_ldloc (mb, conv_arg);
6437 mono_mb_emit_stloc (mb, src_ptr);
6439 /* Emit marshalling loop */
6440 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6441 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6442 mono_mb_emit_stloc (mb, index_var);
6443 label2 = mono_mb_get_label (mb);
6444 mono_mb_emit_ldloc (mb, index_var);
6445 mono_mb_emit_ldarg (mb, argnum);
6447 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6448 mono_mb_emit_byte (mb, CEE_LDLEN);
6449 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6451 /* Emit marshalling code */
6453 if (eklass == mono_defaults.stringbuilder_class) {
6454 gboolean need_free2;
6455 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6457 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6460 mono_mb_emit_ldarg (mb, argnum);
6462 mono_mb_emit_byte (mb, CEE_LDIND_I);
6463 mono_mb_emit_ldloc (mb, index_var);
6464 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6467 mono_mb_emit_ldloc (mb, src_ptr);
6468 mono_mb_emit_byte (mb, CEE_LDIND_I);
6470 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6474 mono_mb_emit_ldloc (mb, src_ptr);
6475 mono_mb_emit_byte (mb, CEE_LDIND_I);
6477 mono_mb_emit_icall (mb, mono_marshal_free);
6480 else if (eklass == mono_defaults.string_class) {
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);
6491 /* set the src_ptr */
6492 mono_mb_emit_ldloc (mb, src_ptr);
6493 mono_mb_emit_stloc (mb, 0);
6496 mono_mb_emit_ldarg (mb, argnum);
6498 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6499 mono_mb_emit_ldloc (mb, index_var);
6500 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6501 mono_mb_emit_stloc (mb, 1);
6503 /* emit valuetype conversion code */
6504 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6508 mono_mb_emit_ldloc (mb, src_ptr);
6509 mono_mb_emit_stloc (mb, loc);
6510 mono_mb_emit_ldloc (mb, loc);
6512 emit_struct_free (mb, eklass, loc);
6516 mono_mb_emit_add_to_local (mb, index_var, 1);
6517 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6519 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6521 mono_mb_patch_branch (mb, label1);
6522 mono_mb_patch_branch (mb, label3);
6525 if (klass->element_class->blittable) {
6526 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6528 mono_mb_emit_ldarg (mb, argnum);
6530 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6531 mono_mb_emit_ldloc (mb, conv_arg);
6532 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6537 case MARSHAL_ACTION_PUSH:
6539 mono_mb_emit_ldloc_addr (mb, conv_arg);
6541 mono_mb_emit_ldloc (mb, conv_arg);
6544 case MARSHAL_ACTION_CONV_RESULT:
6545 /* fixme: we need conversions here */
6546 mono_mb_emit_stloc (mb, 3);
6549 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6551 guint32 label1, label2, label3;
6552 int index_var, src_ptr, esize, param_num, num_elem;
6553 MonoMarshalConv conv;
6554 gboolean is_string = FALSE;
6556 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6557 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6560 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6561 mono_mb_emit_exception_marshal_directive (mb, msg);
6565 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6566 mono_mb_emit_exception_marshal_directive (mb, msg);
6569 if (spec->native != MONO_NATIVE_LPARRAY) {
6570 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6571 mono_mb_emit_exception_marshal_directive (mb, msg);
6575 /* FIXME: t is from the method which is wrapped, not the delegate type */
6576 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6578 param_num = spec->data.array_data.param_num;
6579 num_elem = spec->data.array_data.num_elem;
6580 if (spec->data.array_data.elem_mult == 0)
6581 /* param_num is not specified */
6584 if (param_num == -1) {
6585 if (num_elem <= 0) {
6586 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6587 mono_mb_emit_exception_marshal_directive (mb, msg);
6592 /* FIXME: Optimize blittable case */
6594 eklass = klass->element_class;
6595 if (eklass == mono_defaults.string_class) {
6597 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6599 else if (eklass == mono_defaults.stringbuilder_class) {
6601 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6604 conv = MONO_MARSHAL_CONV_INVALID;
6606 mono_marshal_load_type_info (eklass);
6609 esize = sizeof (gpointer);
6611 esize = mono_class_native_size (eklass, NULL);
6612 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6614 mono_mb_emit_byte (mb, CEE_LDNULL);
6615 mono_mb_emit_stloc (mb, conv_arg);
6617 /* Check param index */
6618 if (param_num != -1) {
6619 if (param_num >= m->sig->param_count) {
6620 char *msg = g_strdup ("Array size control parameter index is out of range.");
6621 mono_mb_emit_exception_marshal_directive (mb, msg);
6624 switch (m->sig->params [param_num]->type) {
6637 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6638 mono_mb_emit_exception_marshal_directive (mb, msg);
6645 mono_mb_emit_ldarg (mb, argnum);
6646 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6648 mono_mb_emit_ldarg (mb, argnum);
6649 mono_mb_emit_stloc (mb, src_ptr);
6651 /* Create managed array */
6653 * The LPArray marshalling spec says that sometimes param_num starts
6654 * from 1, sometimes it starts from 0. But MS seems to allways start
6658 if (param_num == -1) {
6659 mono_mb_emit_icon (mb, num_elem);
6661 mono_mb_emit_ldarg (mb, param_num);
6663 mono_mb_emit_icon (mb, num_elem);
6664 mono_mb_emit_byte (mb, CEE_ADD);
6666 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6669 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6670 mono_mb_emit_stloc (mb, conv_arg);
6672 if (eklass->blittable) {
6673 mono_mb_emit_ldloc (mb, conv_arg);
6674 mono_mb_emit_byte (mb, CEE_CONV_I);
6675 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6676 mono_mb_emit_byte (mb, CEE_ADD);
6677 mono_mb_emit_ldarg (mb, argnum);
6678 mono_mb_emit_ldloc (mb, conv_arg);
6679 mono_mb_emit_byte (mb, CEE_LDLEN);
6680 mono_mb_emit_icon (mb, esize);
6681 mono_mb_emit_byte (mb, CEE_MUL);
6682 mono_mb_emit_byte (mb, CEE_PREFIX1);
6683 mono_mb_emit_byte (mb, CEE_CPBLK);
6687 /* Emit marshalling loop */
6688 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6689 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6690 mono_mb_emit_stloc (mb, index_var);
6691 label2 = mono_mb_get_label (mb);
6692 mono_mb_emit_ldloc (mb, index_var);
6693 mono_mb_emit_ldloc (mb, conv_arg);
6694 mono_mb_emit_byte (mb, CEE_LDLEN);
6695 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6697 /* Emit marshalling code */
6699 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6701 mono_mb_emit_ldloc (mb, conv_arg);
6702 mono_mb_emit_ldloc (mb, index_var);
6704 mono_mb_emit_ldloc (mb, src_ptr);
6705 mono_mb_emit_byte (mb, CEE_LDIND_I);
6707 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6708 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6711 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6712 mono_mb_emit_exception_marshal_directive (mb, msg);
6716 mono_mb_emit_add_to_local (mb, index_var, 1);
6717 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6719 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6721 mono_mb_patch_branch (mb, label1);
6722 mono_mb_patch_branch (mb, label3);
6726 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6728 guint32 label1, label2, label3;
6729 int index_var, dest_ptr, esize, param_num, num_elem;
6730 MonoMarshalConv conv;
6731 gboolean is_string = FALSE;
6734 /* Already handled in CONV_IN */
6737 /* These are already checked in CONV_IN */
6738 g_assert (!t->byref);
6739 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6740 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6742 param_num = spec->data.array_data.param_num;
6743 num_elem = spec->data.array_data.num_elem;
6745 if (spec->data.array_data.elem_mult == 0)
6746 /* param_num is not specified */
6749 if (param_num == -1) {
6750 if (num_elem <= 0) {
6751 g_assert_not_reached ();
6755 /* FIXME: Optimize blittable case */
6757 eklass = klass->element_class;
6758 if (eklass == mono_defaults.string_class) {
6760 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6762 else if (eklass == mono_defaults.stringbuilder_class) {
6764 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6767 conv = MONO_MARSHAL_CONV_INVALID;
6769 mono_marshal_load_type_info (eklass);
6772 esize = sizeof (gpointer);
6774 esize = mono_class_native_size (eklass, NULL);
6776 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6779 mono_mb_emit_ldloc (mb, conv_arg);
6780 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6782 mono_mb_emit_ldarg (mb, argnum);
6783 mono_mb_emit_stloc (mb, dest_ptr);
6785 if (eklass->blittable) {
6787 mono_mb_emit_ldarg (mb, argnum);
6789 mono_mb_emit_ldloc (mb, conv_arg);
6790 mono_mb_emit_byte (mb, CEE_CONV_I);
6791 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6792 mono_mb_emit_byte (mb, CEE_ADD);
6794 mono_mb_emit_ldloc (mb, conv_arg);
6795 mono_mb_emit_byte (mb, CEE_LDLEN);
6796 mono_mb_emit_icon (mb, esize);
6797 mono_mb_emit_byte (mb, CEE_MUL);
6798 mono_mb_emit_byte (mb, CEE_PREFIX1);
6799 mono_mb_emit_byte (mb, CEE_CPBLK);
6803 /* Emit marshalling loop */
6804 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6805 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6806 mono_mb_emit_stloc (mb, index_var);
6807 label2 = mono_mb_get_label (mb);
6808 mono_mb_emit_ldloc (mb, index_var);
6809 mono_mb_emit_ldloc (mb, conv_arg);
6810 mono_mb_emit_byte (mb, CEE_LDLEN);
6811 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6813 /* Emit marshalling code */
6816 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6819 mono_mb_emit_ldloc (mb, dest_ptr);
6822 mono_mb_emit_ldloc (mb, conv_arg);
6823 mono_mb_emit_ldloc (mb, index_var);
6825 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6827 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6828 mono_mb_emit_byte (mb, stind_op);
6831 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6832 mono_mb_emit_exception_marshal_directive (mb, msg);
6836 mono_mb_emit_add_to_local (mb, index_var, 1);
6837 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6839 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6841 mono_mb_patch_branch (mb, label1);
6842 mono_mb_patch_branch (mb, label3);
6846 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6848 guint32 label1, label2, label3;
6849 int index_var, src, dest, esize;
6850 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6851 gboolean is_string = FALSE;
6853 g_assert (!t->byref);
6855 eklass = klass->element_class;
6857 mono_marshal_load_type_info (eklass);
6859 if (eklass == mono_defaults.string_class) {
6861 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6864 g_assert_not_reached ();
6868 esize = sizeof (gpointer);
6869 else if (eklass == mono_defaults.char_class)
6870 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6872 esize = mono_class_native_size (eklass, NULL);
6874 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6875 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6877 mono_mb_emit_stloc (mb, src);
6878 mono_mb_emit_ldloc (mb, src);
6879 mono_mb_emit_stloc (mb, 3);
6881 /* Check for null */
6882 mono_mb_emit_ldloc (mb, src);
6883 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6885 /* Allocate native array */
6886 mono_mb_emit_icon (mb, esize);
6887 mono_mb_emit_ldloc (mb, src);
6888 mono_mb_emit_byte (mb, CEE_LDLEN);
6890 if (eklass == mono_defaults.string_class) {
6891 /* Make the array bigger for the terminating null */
6892 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6893 mono_mb_emit_byte (mb, CEE_ADD);
6895 mono_mb_emit_byte (mb, CEE_MUL);
6896 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6897 mono_mb_emit_stloc (mb, dest);
6898 mono_mb_emit_ldloc (mb, dest);
6899 mono_mb_emit_stloc (mb, 3);
6901 /* Emit marshalling loop */
6902 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6903 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6904 mono_mb_emit_stloc (mb, index_var);
6905 label2 = mono_mb_get_label (mb);
6906 mono_mb_emit_ldloc (mb, index_var);
6907 mono_mb_emit_ldloc (mb, src);
6908 mono_mb_emit_byte (mb, CEE_LDLEN);
6909 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6911 /* Emit marshalling code */
6914 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6917 mono_mb_emit_ldloc (mb, dest);
6920 mono_mb_emit_ldloc (mb, src);
6921 mono_mb_emit_ldloc (mb, index_var);
6923 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6925 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6926 mono_mb_emit_byte (mb, stind_op);
6929 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6930 mono_mb_emit_exception_marshal_directive (mb, msg);
6934 mono_mb_emit_add_to_local (mb, index_var, 1);
6935 mono_mb_emit_add_to_local (mb, dest, esize);
6937 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6939 mono_mb_patch_branch (mb, label3);
6940 mono_mb_patch_branch (mb, label1);
6944 g_assert_not_reached ();
6951 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6954 return &mono_defaults.int32_class->byval_arg;
6956 switch (spec->native) {
6957 case MONO_NATIVE_I1:
6958 case MONO_NATIVE_U1:
6959 return &mono_defaults.byte_class->byval_arg;
6960 case MONO_NATIVE_VARIANTBOOL:
6961 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6962 return &mono_defaults.int16_class->byval_arg;
6963 case MONO_NATIVE_BOOLEAN:
6964 return &mono_defaults.int32_class->byval_arg;
6966 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6967 return &mono_defaults.int32_class->byval_arg;
6973 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6975 MonoClass* conv_arg_class = mono_defaults.int32_class;
6977 switch (spec->native) {
6978 case MONO_NATIVE_I1:
6979 case MONO_NATIVE_U1:
6980 conv_arg_class = mono_defaults.byte_class;
6981 if (ldop) *ldop = CEE_LDIND_I1;
6983 case MONO_NATIVE_VARIANTBOOL:
6984 conv_arg_class = mono_defaults.int16_class;
6985 if (ldop) *ldop = CEE_LDIND_I2;
6987 case MONO_NATIVE_BOOLEAN:
6990 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6993 return conv_arg_class;
6997 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6998 MonoMarshalSpec *spec,
6999 int conv_arg, MonoType **conv_arg_type,
7000 MarshalAction action)
7004 case MARSHAL_ACTION_CONV_IN:
7006 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7008 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7011 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7012 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7014 *conv_arg_type = &conv_arg_class->this_arg;
7016 *conv_arg_type = &conv_arg_class->byval_arg;
7022 MonoMethodBuilder *mb = m->mb;
7025 case MARSHAL_ACTION_CONV_IN: {
7026 MonoType *local_type;
7028 guint8 ldc_op = CEE_LDC_I4_1;
7030 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7032 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7034 *conv_arg_type = local_type;
7035 conv_arg = mono_mb_add_local (mb, local_type);
7037 mono_mb_emit_ldarg (mb, argnum);
7039 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7040 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7041 mono_mb_emit_byte (mb, ldc_op);
7042 mono_mb_emit_stloc (mb, conv_arg);
7043 mono_mb_patch_branch (mb, label_false);
7048 case MARSHAL_ACTION_CONV_OUT:
7050 int label_false, label_end;
7054 mono_mb_emit_ldarg (mb, argnum);
7055 mono_mb_emit_ldloc (mb, conv_arg);
7057 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7058 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7060 label_end = mono_mb_emit_branch (mb, CEE_BR);
7061 mono_mb_patch_branch (mb, label_false);
7062 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7063 mono_mb_patch_branch (mb, label_end);
7065 mono_mb_emit_byte (mb, CEE_STIND_I1);
7069 case MARSHAL_ACTION_PUSH:
7071 mono_mb_emit_ldloc_addr (mb, conv_arg);
7073 mono_mb_emit_ldloc (mb, conv_arg);
7075 mono_mb_emit_ldarg (mb, argnum);
7078 case MARSHAL_ACTION_CONV_RESULT:
7079 /* maybe we need to make sure that it fits within 8 bits */
7080 mono_mb_emit_stloc (mb, 3);
7083 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7084 MonoClass* conv_arg_class = mono_defaults.int32_class;
7085 guint8 ldop = CEE_LDIND_I4;
7086 int label_null, label_false;
7088 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7089 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7092 *conv_arg_type = &conv_arg_class->this_arg;
7094 *conv_arg_type = &conv_arg_class->byval_arg;
7097 mono_mb_emit_ldarg (mb, argnum);
7101 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7102 mono_mb_emit_ldarg (mb, argnum);
7103 mono_mb_emit_byte (mb, ldop);
7107 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7108 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7109 mono_mb_emit_stloc (mb, conv_arg);
7110 mono_mb_patch_branch (mb, label_false);
7113 mono_mb_patch_branch (mb, label_null);
7117 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7118 guint8 stop = CEE_STIND_I4;
7119 guint8 ldc_op = CEE_LDC_I4_1;
7120 int label_null,label_false, label_end;;
7125 switch (spec->native) {
7126 case MONO_NATIVE_I1:
7127 case MONO_NATIVE_U1:
7128 stop = CEE_STIND_I1;
7130 case MONO_NATIVE_VARIANTBOOL:
7131 stop = CEE_STIND_I2;
7132 ldc_op = CEE_LDC_I4_M1;
7140 mono_mb_emit_ldarg (mb, argnum);
7141 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7143 mono_mb_emit_ldarg (mb, argnum);
7144 mono_mb_emit_ldloc (mb, conv_arg);
7146 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7147 mono_mb_emit_byte (mb, ldc_op);
7148 label_end = mono_mb_emit_branch (mb, CEE_BR);
7150 mono_mb_patch_branch (mb, label_false);
7151 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7152 mono_mb_patch_branch (mb, label_end);
7154 mono_mb_emit_byte (mb, stop);
7155 mono_mb_patch_branch (mb, label_null);
7160 g_assert_not_reached ();
7167 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7168 MonoMarshalSpec *spec, int conv_arg,
7169 MonoType **conv_arg_type, MarshalAction action)
7172 MonoMethodBuilder *mb = m->mb;
7175 case MARSHAL_ACTION_CONV_IN:
7176 /* MS seems to allow this in some cases, ie. bxc #158 */
7178 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7179 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7180 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7185 case MARSHAL_ACTION_PUSH:
7186 mono_mb_emit_ldarg (mb, argnum);
7189 case MARSHAL_ACTION_CONV_RESULT:
7190 /* no conversions necessary */
7191 mono_mb_emit_stloc (mb, 3);
7202 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7203 MonoMarshalSpec *spec, int conv_arg,
7204 MonoType **conv_arg_type, MarshalAction action)
7207 MonoMethodBuilder *mb = m->mb;
7210 case MARSHAL_ACTION_PUSH:
7211 /* fixme: dont know how to marshal that. We cant simply
7212 * convert it to a one byte UTF8 character, because an
7213 * unicode character may need more that one byte in UTF8 */
7214 mono_mb_emit_ldarg (mb, argnum);
7217 case MARSHAL_ACTION_CONV_RESULT:
7218 /* fixme: we need conversions here */
7219 mono_mb_emit_stloc (mb, 3);
7230 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7231 MonoMarshalSpec *spec, int conv_arg,
7232 MonoType **conv_arg_type, MarshalAction action)
7235 MonoMethodBuilder *mb = m->mb;
7238 case MARSHAL_ACTION_PUSH:
7239 mono_mb_emit_ldarg (mb, argnum);
7242 case MARSHAL_ACTION_CONV_RESULT:
7243 /* no conversions necessary */
7244 mono_mb_emit_stloc (mb, 3);
7255 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7256 MonoMarshalSpec *spec, int conv_arg,
7257 MonoType **conv_arg_type, MarshalAction action)
7259 /* Ensure that we have marshalling info for this param */
7260 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7262 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7263 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7265 if (spec && spec->native == MONO_NATIVE_ASANY)
7266 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7269 case MONO_TYPE_VALUETYPE:
7270 if (t->data.klass == mono_defaults.handleref_class)
7271 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7273 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7274 case MONO_TYPE_STRING:
7275 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7276 case MONO_TYPE_CLASS:
7277 case MONO_TYPE_OBJECT:
7278 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7279 if (spec && spec->native == MONO_NATIVE_STRUCT)
7280 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7283 #if !defined(DISABLE_COM)
7284 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7285 spec->native == MONO_NATIVE_IDISPATCH ||
7286 spec->native == MONO_NATIVE_INTERFACE))
7287 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7288 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7289 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7290 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7291 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7294 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7295 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7296 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7298 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7299 case MONO_TYPE_ARRAY:
7300 case MONO_TYPE_SZARRAY:
7301 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7302 case MONO_TYPE_BOOLEAN:
7303 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7305 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7306 case MONO_TYPE_CHAR:
7307 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7320 case MONO_TYPE_FNPTR:
7321 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7322 case MONO_TYPE_GENERICINST:
7323 if (mono_type_generic_inst_is_valuetype (t))
7324 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7326 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7334 * mono_marshal_emit_native_wrapper:
7335 * @image: the image to use for looking up custom marshallers
7336 * @sig: The signature of the native function
7337 * @piinfo: Marshalling information
7338 * @mspecs: Marshalling information
7339 * @aot: whenever the created method will be compiled by the AOT compiler
7340 * @method: if non-NULL, the pinvoke method to call
7341 * @check_exceptions: Whenever to check for pending exceptions after the native call
7342 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7344 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7347 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)
7349 EmitMarshalContext m;
7350 MonoMethodSignature *csig;
7352 int i, argnum, *tmp_locals;
7353 int type, param_shift = 0;
7354 int coop_gc_stack_dummy, coop_gc_var;
7356 memset (&m, 0, sizeof (m));
7361 /* we copy the signature, so that we can set pinvoke to 0 */
7363 /* The function address is passed as the first argument */
7364 g_assert (!sig->hasthis);
7367 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7375 /* we allocate local for use with emit_struct_conv() */
7376 /* allocate local 0 (pointer) src_ptr */
7377 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7378 /* allocate local 1 (pointer) dst_ptr */
7379 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7380 /* allocate local 2 (boolean) delete_old */
7381 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7383 /* delete_old = FALSE */
7384 mono_mb_emit_icon (mb, 0);
7385 mono_mb_emit_stloc (mb, 2);
7387 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7388 /* allocate local 3 to store the return value */
7389 mono_mb_add_local (mb, sig->ret);
7392 if (mono_threads_is_coop_enabled ()) {
7393 /* local 4, dummy local used to get a stack address for suspend funcs */
7394 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7395 /* local 5, the local to be used when calling the suspend funcs */
7396 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7400 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7402 * ret = method (...);
7404 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7411 if (MONO_TYPE_ISSTRUCT (sig->ret))
7412 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7414 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7415 /* Return type custom marshaling */
7417 * Since we can't determine the return type of the unmanaged function,
7418 * we assume it returns a pointer, and pass that pointer to
7419 * MarshalNativeToManaged.
7421 csig->ret = &mono_defaults.int_class->byval_arg;
7424 /* we first do all conversions */
7425 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7426 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7428 for (i = 0; i < sig->param_count; i ++) {
7429 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7432 // In coop mode need to register blocking state during native call
7433 if (mono_threads_is_coop_enabled ()) {
7434 // Perform an extra, early lookup of the function address, so any exceptions
7435 // potentially resulting from the lookup occur before entering blocking mode.
7436 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7437 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7438 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7439 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7442 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7443 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7444 mono_mb_emit_stloc (mb, coop_gc_var);
7447 /* push all arguments */
7450 mono_mb_emit_byte (mb, CEE_LDARG_0);
7452 for (i = 0; i < sig->param_count; i++) {
7453 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7456 /* call the native method */
7458 mono_mb_emit_byte (mb, CEE_LDARG_0);
7459 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7460 mono_mb_emit_byte (mb, CEE_LDIND_I);
7461 mono_mb_emit_calli (mb, csig);
7462 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7464 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7466 g_assert_not_reached ();
7470 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7471 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7472 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7473 mono_mb_emit_calli (mb, csig);
7475 mono_mb_emit_native_call (mb, csig, func);
7479 /* Set LastError if needed */
7480 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7483 static MonoMethodSignature *get_last_error_sig = NULL;
7484 if (!get_last_error_sig) {
7485 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7486 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7487 get_last_error_sig->pinvoke = 1;
7491 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7492 * clobber its value.
7494 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7495 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7497 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7498 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7499 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7502 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7506 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7507 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7508 mono_class_init (klass);
7509 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7510 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7511 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7512 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7513 mono_mb_emit_stloc (mb, m.vtaddr_var);
7517 /* Unblock before converting the result, since that can involve calls into the runtime */
7518 if (mono_threads_is_coop_enabled ()) {
7519 mono_mb_emit_ldloc (mb, coop_gc_var);
7520 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7521 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7524 /* convert the result */
7525 if (!sig->ret->byref) {
7526 MonoMarshalSpec *spec = mspecs [0];
7527 type = sig->ret->type;
7529 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7530 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7534 case MONO_TYPE_VOID:
7536 case MONO_TYPE_VALUETYPE:
7537 klass = sig->ret->data.klass;
7538 if (klass->enumtype) {
7539 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7542 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7556 case MONO_TYPE_FNPTR:
7557 case MONO_TYPE_STRING:
7558 case MONO_TYPE_CLASS:
7559 case MONO_TYPE_OBJECT:
7560 case MONO_TYPE_BOOLEAN:
7561 case MONO_TYPE_ARRAY:
7562 case MONO_TYPE_SZARRAY:
7563 case MONO_TYPE_CHAR:
7565 case MONO_TYPE_GENERICINST:
7566 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7568 case MONO_TYPE_TYPEDBYREF:
7570 g_warning ("return type 0x%02x unknown", sig->ret->type);
7571 g_assert_not_reached ();
7575 mono_mb_emit_stloc (mb, 3);
7579 * Need to call this after converting the result since MONO_VTADDR needs
7580 * to be adjacent to the call instruction.
7582 if (check_exceptions)
7583 emit_thread_interrupt_checkpoint (mb);
7585 /* we need to convert byref arguments back and free string arrays */
7586 for (i = 0; i < sig->param_count; i++) {
7587 MonoType *t = sig->params [i];
7588 MonoMarshalSpec *spec = mspecs [i + 1];
7590 argnum = i + param_shift;
7592 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7593 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7598 case MONO_TYPE_STRING:
7599 case MONO_TYPE_VALUETYPE:
7600 case MONO_TYPE_CLASS:
7601 case MONO_TYPE_OBJECT:
7602 case MONO_TYPE_SZARRAY:
7603 case MONO_TYPE_BOOLEAN:
7604 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7611 if (!MONO_TYPE_IS_VOID(sig->ret))
7612 mono_mb_emit_ldloc (mb, 3);
7614 mono_mb_emit_byte (mb, CEE_RET);
7616 #endif /* DISABLE_JIT */
7619 * mono_marshal_get_native_wrapper:
7620 * @method: The MonoMethod to wrap.
7621 * @check_exceptions: Whenever to check for pending exceptions
7623 * generates IL code for the pinvoke wrapper (the generated method
7624 * calls the unmanaged code in piinfo->addr)
7627 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7629 MonoMethodSignature *sig, *csig;
7630 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7631 MonoMethodBuilder *mb;
7632 MonoMarshalSpec **mspecs;
7635 gboolean pinvoke = FALSE;
7638 const char *exc_class = "MissingMethodException";
7639 const char *exc_arg = NULL;
7642 g_assert (method != NULL);
7643 g_assert (mono_method_signature (method)->pinvoke);
7645 GHashTable **cache_ptr;
7648 if (check_exceptions)
7649 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7651 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7653 if (check_exceptions)
7654 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7656 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7659 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7661 if ((res = mono_marshal_find_in_cache (cache, method)))
7664 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7665 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7669 return mono_cominterop_get_native_wrapper (method);
7671 g_assert_not_reached ();
7675 sig = mono_method_signature (method);
7677 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7678 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7681 if (!piinfo->addr) {
7683 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7684 exc_arg = "Method contains unsupported native code";
7686 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7688 piinfo->addr = mono_lookup_internal_call (method);
7692 /* hack - redirect certain string constructors to CreateString */
7693 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7694 g_assert (!pinvoke);
7695 g_assert (method->string_ctor);
7696 g_assert (sig->hasthis);
7698 /* CreateString returns a value */
7699 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7700 csig->ret = &mono_defaults.string_class->byval_arg;
7704 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7705 if (!strcmp ("CreateString", res->name) &&
7706 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7709 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7710 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7712 /* create a wrapper to preserve .ctor in stack trace */
7713 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7716 mono_mb_emit_byte (mb, CEE_LDARG_0);
7717 for (i = 1; i <= csig->param_count; i++)
7718 mono_mb_emit_ldarg (mb, i);
7719 mono_mb_emit_managed_call (mb, res, NULL);
7720 mono_mb_emit_byte (mb, CEE_RET);
7723 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7724 info->d.string_ctor.method = method;
7726 /* use native_wrapper_cache because internal calls are looked up there */
7727 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7728 csig->param_count + 1, info, NULL);
7735 /* exception will be thrown */
7736 piinfo->addr = NULL;
7737 g_warning ("cannot find CreateString for .ctor");
7740 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7742 mb->method->save_lmf = 1;
7745 * In AOT mode and embedding scenarios, it is possible that the icall is not
7746 * registered in the runtime doing the AOT compilation.
7748 if (!piinfo->addr && !aot) {
7750 mono_mb_emit_exception (mb, exc_class, exc_arg);
7752 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7753 info->d.managed_to_native.method = method;
7755 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7757 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7758 csig->param_count + 16, info, NULL);
7764 /* internal calls: we simply push all arguments and call the method (no conversions) */
7765 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7767 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7769 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7771 //printf ("%s\n", mono_method_full_name (method, 1));
7773 /* hack - string constructors returns a value */
7774 if (method->string_ctor)
7775 csig->ret = &mono_defaults.string_class->byval_arg;
7779 MonoClass *handle_stack_mark_class;
7780 MonoClass *error_class;
7781 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
7782 MonoMethodSignature *call_sig = csig;
7783 gboolean uses_handles = FALSE;
7784 (void) mono_lookup_internal_call_full (method, &uses_handles);
7787 /* If it uses handles and MonoError, it had better check exceptions */
7788 g_assert (!uses_handles || check_exceptions);
7791 MonoMethodSignature *ret;
7793 /* Add a MonoError argument */
7794 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
7795 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
7797 ret->param_count = csig->param_count + 1;
7798 ret->ret = csig->ret;
7799 for (int i = 0; i < csig->param_count; ++i) {
7800 // FIXME: TODO implement handle wrapping for out and inout params.
7801 g_assert (!mono_signature_param_is_out (csig, i));
7802 ret->params [i] = csig->params [i];
7804 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
7809 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
7810 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
7812 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
7813 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
7814 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
7816 // FIXME: Change csig so it passes a handle not an objref
7823 * Add a null check since public icalls can be called with 'call' which
7824 * does no such check.
7826 mono_mb_emit_byte (mb, CEE_LDARG_0);
7827 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7828 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7829 mono_mb_patch_branch (mb, pos);
7833 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7834 mono_mb_emit_ldloc_addr (mb, error_var);
7835 mono_mb_emit_icall (mb, mono_icall_start);
7836 mono_mb_emit_stloc (mb, thread_info_var);
7839 mono_mb_emit_byte (mb, CEE_LDARG_0);
7840 mono_mb_emit_icall (mb, mono_handle_new);
7842 for (i = 0; i < sig->param_count; i++) {
7843 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7844 if (MONO_TYPE_IS_REFERENCE (sig->params [i])) {
7845 mono_mb_emit_icall (mb, mono_handle_new);
7848 mono_mb_emit_ldloc_addr (mb, error_var);
7851 mono_mb_emit_byte (mb, CEE_LDARG_0);
7852 for (i = 0; i < sig->param_count; i++)
7853 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7857 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7858 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7859 mono_mb_emit_calli (mb, call_sig);
7861 g_assert (piinfo->addr);
7862 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
7866 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
7867 // if (ret != NULL_HANDLE) {
7868 // ret = MONO_HANDLE_RAW(ret)
7870 mono_mb_emit_byte (mb, CEE_DUP);
7871 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7872 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
7873 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7874 mono_mb_patch_branch (mb, pos);
7876 mono_mb_emit_ldloc (mb, thread_info_var);
7877 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7878 mono_mb_emit_ldloc_addr (mb, error_var);
7879 mono_mb_emit_icall (mb, mono_icall_end);
7882 if (check_exceptions)
7883 emit_thread_interrupt_checkpoint (mb);
7884 mono_mb_emit_byte (mb, CEE_RET);
7886 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7887 info->d.managed_to_native.method = method;
7889 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7891 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7900 g_assert (piinfo->addr);
7903 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7904 mono_method_get_marshal_info (method, mspecs);
7906 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7908 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7909 info->d.managed_to_native.method = method;
7911 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7913 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7918 for (i = sig->param_count; i >= 0; i--)
7920 mono_metadata_free_marshal_spec (mspecs [i]);
7924 /* mono_method_print_code (res); */
7930 * mono_marshal_get_native_func_wrapper:
7931 * @image: The image to use for memory allocation and for looking up custom marshallers.
7932 * @sig: The signature of the function
7933 * @func: The native function to wrap
7935 * Returns a wrapper method around native functions, similar to the pinvoke
7939 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7940 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7942 MonoMethodSignature *csig;
7944 SignaturePointerPair key, *new_key;
7945 MonoMethodBuilder *mb;
7954 // Generic types are not safe to place in MonoImage caches.
7955 g_assert (!sig->is_inflated);
7957 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7958 if ((res = mono_marshal_find_in_cache (cache, &key)))
7961 name = g_strdup_printf ("wrapper_native_%p", func);
7962 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7963 mb->method->save_lmf = 1;
7966 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7969 csig = mono_metadata_signature_dup_full (image, sig);
7972 new_key = g_new (SignaturePointerPair,1);
7973 new_key->sig = csig;
7974 new_key->pointer = func;
7976 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7982 mono_marshal_set_wrapper_info (res, NULL);
7988 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7992 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7994 MonoMethodSignature *sig, *csig;
7995 MonoMethodBuilder *mb;
8000 MonoMethodPInvoke mpiinfo;
8001 MonoMethodPInvoke *piinfo = &mpiinfo;
8002 MonoMarshalSpec **mspecs;
8003 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8004 MonoImage *image = invoke->klass->image;
8007 // FIXME: include UnmanagedFunctionPointerAttribute info
8010 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8012 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8014 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8017 memset (&mpiinfo, 0, sizeof (mpiinfo));
8018 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8020 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8021 mono_method_get_marshal_info (invoke, mspecs);
8022 /* Freed below so don't alloc from mempool */
8023 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8026 name = g_strdup_printf ("wrapper_aot_native");
8027 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8028 mb->method->save_lmf = 1;
8031 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8034 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8035 info->d.managed_to_native.method = invoke;
8037 g_assert (!sig->hasthis);
8038 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8040 res = mono_mb_create_and_cache_full (cache, invoke,
8041 mb, csig, csig->param_count + 16,
8045 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8047 mono_metadata_free_marshal_spec (mspecs [i]);
8055 * mono_marshal_emit_managed_wrapper:
8057 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8058 * the delegate which wraps the managed method to be called. For closed delegates,
8059 * it could have fewer parameters than the method it wraps.
8060 * THIS_LOC is the memory location where the target of the delegate is stored.
8063 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8066 MonoMethodSignature *sig, *csig;
8072 /* we first do all conversions */
8073 for (i = 0; i < sig->param_count; i ++) {
8074 MonoType *t = sig->params [i];
8077 case MONO_TYPE_OBJECT:
8078 case MONO_TYPE_CLASS:
8079 case MONO_TYPE_VALUETYPE:
8080 case MONO_TYPE_ARRAY:
8081 case MONO_TYPE_SZARRAY:
8082 case MONO_TYPE_STRING:
8083 case MONO_TYPE_BOOLEAN:
8084 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8088 if (!sig->ret->byref) {
8089 switch (sig->ret->type) {
8090 case MONO_TYPE_STRING:
8091 csig->ret = &mono_defaults.int_class->byval_arg;
8098 MonoMethodSignature *sig, *csig;
8099 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8100 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8101 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8102 gboolean closed = FALSE;
8107 /* allocate local 0 (pointer) src_ptr */
8108 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8109 /* allocate local 1 (pointer) dst_ptr */
8110 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8111 /* allocate local 2 (boolean) delete_old */
8112 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8114 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8115 /* Closed delegate */
8116 g_assert (sig->param_count == invoke_sig->param_count + 1);
8118 /* Use a new signature without the first argument */
8119 sig = mono_metadata_signature_dup (sig);
8120 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8121 sig->param_count --;
8124 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8125 /* allocate local 3 to store the return value */
8126 mono_mb_add_local (mb, sig->ret);
8129 if (MONO_TYPE_ISSTRUCT (sig->ret))
8130 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8132 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8133 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8135 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8136 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8141 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8142 * mono_threads_attach_coop ();
8146 * ret = method (...);
8147 * } catch (Exception e) {
8148 * ex = mono_gchandle_new (e, false);
8150 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8151 * mono_threads_detach_coop ();
8154 * mono_marshal_ftnptr_eh_callback (ex);
8160 clauses = g_new0 (MonoExceptionClause, 2);
8162 clause_catch = &clauses [0];
8163 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8164 clause_catch->data.catch_class = mono_defaults.exception_class;
8166 clause_finally = &clauses [1];
8167 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8169 mono_mb_emit_icon (mb, 0);
8170 mono_mb_emit_stloc (mb, 2);
8172 mono_mb_emit_icon (mb, -1);
8173 mono_mb_emit_byte (mb, CEE_CONV_U4);
8174 mono_mb_emit_stloc (mb, ex_local);
8177 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8179 if (!mono_threads_is_coop_enabled ()) {
8180 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8181 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8183 /* mono_threads_attach_coop (); */
8184 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8185 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8186 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8187 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8188 mono_mb_emit_stloc (mb, attach_cookie_local);
8191 /* <interrupt check> */
8192 emit_thread_interrupt_checkpoint (mb);
8194 /* we first do all conversions */
8195 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8196 for (i = 0; i < sig->param_count; i ++) {
8197 MonoType *t = sig->params [i];
8200 case MONO_TYPE_OBJECT:
8201 case MONO_TYPE_CLASS:
8202 case MONO_TYPE_VALUETYPE:
8203 case MONO_TYPE_ARRAY:
8204 case MONO_TYPE_SZARRAY:
8205 case MONO_TYPE_STRING:
8206 case MONO_TYPE_BOOLEAN:
8207 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8217 if (target_handle) {
8218 mono_mb_emit_icon (mb, (gint32)target_handle);
8219 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8222 g_assert_not_reached ();
8224 } else if (closed) {
8225 mono_mb_emit_icon (mb, (gint32)target_handle);
8226 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8229 for (i = 0; i < sig->param_count; i++) {
8230 MonoType *t = sig->params [i];
8232 if (tmp_locals [i]) {
8234 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8236 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8239 mono_mb_emit_ldarg (mb, i);
8242 /* ret = method (...) */
8243 mono_mb_emit_managed_call (mb, method, NULL);
8245 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8246 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8247 mono_class_init (klass);
8248 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8249 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8250 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8251 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8252 mono_mb_emit_stloc (mb, m->vtaddr_var);
8256 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8257 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8258 } else if (!sig->ret->byref) {
8259 switch (sig->ret->type) {
8260 case MONO_TYPE_VOID:
8262 case MONO_TYPE_BOOLEAN:
8265 case MONO_TYPE_CHAR:
8277 case MONO_TYPE_OBJECT:
8278 mono_mb_emit_stloc (mb, 3);
8280 case MONO_TYPE_STRING:
8281 csig->ret = &mono_defaults.int_class->byval_arg;
8282 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8284 case MONO_TYPE_VALUETYPE:
8285 case MONO_TYPE_CLASS:
8286 case MONO_TYPE_SZARRAY:
8287 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8290 g_warning ("return type 0x%02x unknown", sig->ret->type);
8291 g_assert_not_reached ();
8294 mono_mb_emit_stloc (mb, 3);
8297 /* Convert byref arguments back */
8298 for (i = 0; i < sig->param_count; i ++) {
8299 MonoType *t = sig->params [i];
8300 MonoMarshalSpec *spec = mspecs [i + 1];
8302 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8303 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8305 else if (t->byref) {
8307 case MONO_TYPE_CLASS:
8308 case MONO_TYPE_VALUETYPE:
8309 case MONO_TYPE_OBJECT:
8310 case MONO_TYPE_STRING:
8311 case MONO_TYPE_BOOLEAN:
8312 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8318 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8319 /* The [Out] information is encoded in the delegate signature */
8321 case MONO_TYPE_SZARRAY:
8322 case MONO_TYPE_CLASS:
8323 case MONO_TYPE_VALUETYPE:
8324 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8327 g_assert_not_reached ();
8332 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8336 /* catch (Exception e) { */
8337 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8338 clause_catch->handler_offset = mono_mb_get_label (mb);
8340 mono_mb_emit_stloc (mb, e_local);
8342 /* ex = mono_gchandle_new (e, false); */
8343 mono_mb_emit_ldloc (mb, e_local);
8344 mono_mb_emit_icon (mb, 0);
8345 mono_mb_emit_icall (mb, mono_gchandle_new);
8346 mono_mb_emit_stloc (mb, ex_local);
8348 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8351 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8354 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8355 clause_finally->handler_offset = mono_mb_get_label (mb);
8357 if (!mono_threads_is_coop_enabled ()) {
8358 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8359 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8361 /* mono_threads_detach_coop (); */
8362 mono_mb_emit_ldloc (mb, attach_cookie_local);
8363 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8364 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8368 mono_mb_emit_ldloc (mb, ex_local);
8369 mono_mb_emit_icon (mb, -1);
8370 mono_mb_emit_byte (mb, CEE_CONV_U4);
8371 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8373 /* mono_marshal_ftnptr_eh_callback (ex) */
8374 mono_mb_emit_ldloc (mb, ex_local);
8375 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8378 mono_mb_patch_branch (mb, ex_m1_pos);
8380 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8382 /* } [endfinally] */
8383 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8385 mono_mb_patch_branch (mb, leave_try_pos);
8386 mono_mb_patch_branch (mb, leave_catch_pos);
8389 if (m->retobj_var) {
8390 mono_mb_emit_ldloc (mb, m->retobj_var);
8391 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8392 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8395 if (!MONO_TYPE_IS_VOID(sig->ret))
8396 mono_mb_emit_ldloc (mb, 3);
8397 mono_mb_emit_byte (mb, CEE_RET);
8400 mono_mb_set_clauses (mb, 2, clauses);
8408 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8410 MonoMethodSignature *sig;
8415 * Under windows, delegates passed to native code must use the STDCALL
8416 * calling convention.
8418 csig->call_convention = MONO_CALL_STDCALL;
8421 sig = mono_method_signature (method);
8423 /* Change default calling convention if needed */
8424 /* Why is this a modopt ? */
8425 if (sig->ret && sig->ret->num_mods) {
8426 for (i = 0; i < sig->ret->num_mods; ++i) {
8428 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8429 g_assert (mono_error_ok (&error));
8430 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8431 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8432 csig->call_convention = MONO_CALL_C;
8433 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8434 csig->call_convention = MONO_CALL_STDCALL;
8435 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8436 csig->call_convention = MONO_CALL_FASTCALL;
8437 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8438 csig->call_convention = MONO_CALL_THISCALL;
8445 * generates IL code to call managed methods from unmanaged code
8446 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8449 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8452 MonoMethodSignature *sig, *csig, *invoke_sig;
8453 MonoMethodBuilder *mb;
8454 MonoMethod *res, *invoke;
8455 MonoMarshalSpec **mspecs;
8456 MonoMethodPInvoke piinfo;
8459 EmitMarshalContext m;
8461 g_assert (method != NULL);
8462 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8465 * FIXME: Should cache the method+delegate type pair, since the same method
8466 * could be called with different delegates, thus different marshalling
8469 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8471 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8474 invoke = mono_get_delegate_invoke (delegate_klass);
8475 invoke_sig = mono_method_signature (invoke);
8477 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8478 mono_method_get_marshal_info (invoke, mspecs);
8480 sig = mono_method_signature (method);
8482 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8484 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8485 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8487 /* we copy the signature, so that we can modify it */
8489 /* Need to free this later */
8490 csig = mono_metadata_signature_dup (invoke_sig);
8492 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8496 memset (&m, 0, sizeof (m));
8502 m.image = method->klass->image;
8504 mono_marshal_set_callconv_from_modopt (invoke, csig);
8506 /* The attribute is only available in Net 2.0 */
8507 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8508 MonoCustomAttrInfo *cinfo;
8509 MonoCustomAttrEntry *attr;
8512 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8513 * contents of the attribute without constructing it, as that might not be
8514 * possible when running in cross-compiling mode.
8516 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8517 mono_error_assert_ok (&error);
8520 for (i = 0; i < cinfo->num_attrs; ++i) {
8521 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8522 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8523 attr = &cinfo->attrs [i];
8529 MonoArray *typed_args, *named_args;
8530 CattrNamedArg *arginfo;
8534 MonoBoolean set_last_error = 0;
8537 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8538 g_assert (mono_error_ok (&error));
8539 g_assert (mono_array_length (typed_args) == 1);
8542 o = mono_array_get (typed_args, MonoObject*, 0);
8543 call_conv = *(gint32*)mono_object_unbox (o);
8546 for (i = 0; i < mono_array_length (named_args); ++i) {
8547 CattrNamedArg *narg = &arginfo [i];
8549 o = mono_array_get (named_args, MonoObject*, i);
8551 g_assert (narg->field);
8552 if (!strcmp (narg->field->name, "CharSet")) {
8553 charset = *(gint32*)mono_object_unbox (o);
8554 } else if (!strcmp (narg->field->name, "SetLastError")) {
8555 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8556 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8557 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8558 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8559 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8561 g_assert_not_reached ();
8567 memset (&piinfo, 0, sizeof (piinfo));
8569 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8571 csig->call_convention = call_conv - 1;
8574 if (cinfo && !cinfo->cached)
8575 mono_custom_attrs_free (cinfo);
8578 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8580 if (!target_handle) {
8583 // FIXME: Associate it with the method+delegate_klass pair
8584 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8585 info->d.native_to_managed.method = method;
8586 info->d.native_to_managed.klass = delegate_klass;
8588 res = mono_mb_create_and_cache_full (cache, method,
8589 mb, csig, sig->param_count + 16,
8595 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8599 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8601 mono_metadata_free_marshal_spec (mspecs [i]);
8604 /* mono_method_print_code (res); */
8610 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8614 MonoMethodSignature *sig;
8615 MonoMethodBuilder *mb;
8620 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8622 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8625 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8626 MonoMethodSignature *csig;
8627 MonoMarshalSpec **mspecs;
8628 EmitMarshalContext m;
8630 sig = mono_method_signature (method);
8631 g_assert (!sig->hasthis);
8633 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8634 mono_method_get_marshal_info (method, mspecs);
8636 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8637 csig = mono_metadata_signature_dup_full (image, sig);
8641 memset (&m, 0, sizeof (m));
8649 mono_marshal_set_callconv_from_modopt (method, csig);
8651 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8653 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8658 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8661 for (i = sig->param_count; i >= 0; i--)
8663 mono_metadata_free_marshal_spec (mspecs [i]);
8666 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8667 mono_error_assert_ok (&error);
8668 return compiled_ptr;
8671 sig = mono_method_signature (method);
8672 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8674 param_count = sig->param_count + sig->hasthis;
8676 for (i = 0; i < param_count; i++)
8677 mono_mb_emit_ldarg (mb, i);
8679 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8680 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8682 mono_mb_emit_op (mb, CEE_CALL, method);
8683 mono_mb_emit_byte (mb, CEE_RET);
8688 method = mono_mb_create (mb, sig, param_count, NULL);
8691 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8692 mono_error_assert_ok (&error);
8693 return compiled_ptr;
8699 * The code directly following this is the cache hit, value positive branch
8701 * This function takes a new method builder with 0 locals and adds two locals
8702 * to create multiple out-branches and the fall through state of having the object
8703 * on the stack after a cache miss
8706 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8707 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8708 MonoMethodBuilder *mb)
8712 /* allocate local 0 (pointer) obj_vtable */
8713 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8714 /* allocate local 1 (pointer) cached_vtable */
8715 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8718 mono_mb_emit_ldarg (mb, obj_arg_position);
8719 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8721 /*obj_vtable = obj->vtable;*/
8722 mono_mb_emit_ldarg (mb, obj_arg_position);
8723 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8724 mono_mb_emit_byte (mb, CEE_LDIND_I);
8725 mono_mb_emit_stloc (mb, 0);
8727 /* cached_vtable = *cache*/
8728 mono_mb_emit_ldarg (mb, cache_arg_position);
8729 mono_mb_emit_byte (mb, CEE_LDIND_I);
8730 mono_mb_emit_stloc (mb, 1);
8732 mono_mb_emit_ldloc (mb, 1);
8733 mono_mb_emit_byte (mb, CEE_LDC_I4);
8734 mono_mb_emit_i4 (mb, ~0x1);
8735 mono_mb_emit_byte (mb, CEE_CONV_I);
8736 mono_mb_emit_byte (mb, CEE_AND);
8737 mono_mb_emit_ldloc (mb, 0);
8738 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8739 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8741 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8742 mono_mb_emit_ldloc (mb, 1);
8743 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8744 mono_mb_emit_byte (mb, CEE_CONV_U);
8745 mono_mb_emit_byte (mb, CEE_AND);
8746 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8747 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8750 mono_mb_patch_branch (mb, cache_miss_pos);
8753 mono_mb_emit_ldarg (mb, obj_arg_position);
8754 mono_mb_emit_ldarg (mb, class_arg_position);
8755 mono_mb_emit_ldarg (mb, cache_arg_position);
8756 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8759 #endif /* DISABLE_JIT */
8762 * This does the equivalent of mono_object_castclass_with_cache.
8765 mono_marshal_get_castclass_with_cache (void)
8767 static MonoMethod *cached;
8769 MonoMethodBuilder *mb;
8770 MonoMethodSignature *sig;
8771 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8774 const int obj_arg_position = 0;
8775 const int class_arg_position = 1;
8776 const int cache_arg_position = 2;
8781 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8782 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8783 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8784 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8785 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8786 sig->ret = &mono_defaults.object_class->byval_arg;
8790 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8791 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8792 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8795 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8796 mono_mb_emit_ldarg (mb, obj_arg_position);
8797 mono_mb_emit_byte (mb, CEE_RET);
8800 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8801 mono_mb_patch_branch (mb, invalid_cast_pos);
8802 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8805 mono_mb_patch_branch (mb, return_null_pos);
8806 mono_mb_emit_byte (mb, CEE_LDNULL);
8807 mono_mb_emit_byte (mb, CEE_RET);
8808 #endif /* DISABLE_JIT */
8810 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8811 res = mono_mb_create (mb, sig, 8, info);
8814 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8815 mono_free_method (res);
8816 mono_metadata_free_method_signature (sig);
8823 /* this is an icall */
8825 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8828 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8829 if (mono_error_set_pending_exception (&error))
8832 #ifndef DISABLE_REMOTING
8833 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8837 uintptr_t cache_update = (uintptr_t)obj->vtable;
8839 cache_update = cache_update | 0x1;
8841 *cache = cache_update;
8847 * This does the equivalent of mono_object_isinst_with_cache.
8850 mono_marshal_get_isinst_with_cache (void)
8852 static MonoMethod *cached;
8854 MonoMethodBuilder *mb;
8855 MonoMethodSignature *sig;
8856 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8859 const int obj_arg_position = 0;
8860 const int class_arg_position = 1;
8861 const int cache_arg_position = 2;
8866 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8867 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8869 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8871 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8873 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8874 sig->ret = &mono_defaults.object_class->byval_arg;
8878 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8879 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8880 // Return the object gotten via the slow path.
8881 mono_mb_emit_byte (mb, CEE_RET);
8884 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8885 mono_mb_patch_branch (mb, return_null_pos);
8886 mono_mb_emit_byte (mb, CEE_LDNULL);
8887 mono_mb_emit_byte (mb, CEE_RET);
8890 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8891 mono_mb_emit_ldarg (mb, obj_arg_position);
8892 mono_mb_emit_byte (mb, CEE_RET);
8895 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8896 res = mono_mb_create (mb, sig, 8, info);
8899 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8900 mono_free_method (res);
8901 mono_metadata_free_method_signature (sig);
8909 * mono_marshal_get_isinst:
8910 * @klass: the type of the field
8912 * This method generates a function which can be used to check if an object is
8913 * an instance of the given type, icluding the case where the object is a proxy.
8914 * The generated function has the following signature:
8915 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8918 mono_marshal_get_isinst (MonoClass *klass)
8920 static MonoMethodSignature *isint_sig = NULL;
8924 int pos_was_ok, pos_end;
8925 #ifndef DISABLE_REMOTING
8926 int pos_end2, pos_failed;
8929 MonoMethodBuilder *mb;
8931 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8932 if ((res = mono_marshal_find_in_cache (cache, klass)))
8936 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8937 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8938 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8939 isint_sig->pinvoke = 0;
8942 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8943 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8946 mb->method->save_lmf = 1;
8949 /* check if the object is a proxy that needs special cast */
8950 mono_mb_emit_ldarg (mb, 0);
8951 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8952 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8954 /* The result of MONO_CISINST can be:
8955 0) the type check succeeded
8956 1) the type check did not succeed
8957 2) a CanCastTo call is needed */
8958 #ifndef DISABLE_REMOTING
8959 mono_mb_emit_byte (mb, CEE_DUP);
8960 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8962 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8963 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8965 /* get the real proxy from the transparent proxy*/
8967 mono_mb_emit_ldarg (mb, 0);
8968 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8969 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8973 mono_mb_patch_branch (mb, pos_failed);
8974 mono_mb_emit_byte (mb, CEE_LDNULL);
8975 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8979 mono_mb_patch_branch (mb, pos_was_ok);
8980 mono_mb_emit_byte (mb, CEE_POP);
8981 mono_mb_emit_ldarg (mb, 0);
8985 mono_mb_patch_branch (mb, pos_end);
8986 mono_mb_patch_branch (mb, pos_end2);
8987 mono_mb_emit_byte (mb, CEE_RET);
8989 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8993 mono_mb_emit_byte (mb, CEE_LDNULL);
8994 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8998 mono_mb_patch_branch (mb, pos_was_ok);
8999 mono_mb_emit_ldarg (mb, 0);
9003 mono_mb_patch_branch (mb, pos_end);
9004 mono_mb_emit_byte (mb, CEE_RET);
9005 #endif /* DISABLE_REMOTING */
9006 #endif /* DISABLE_JIT */
9008 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9009 info->d.proxy.klass = klass;
9010 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
9017 * mono_marshal_get_castclass:
9018 * @klass: the type of the field
9020 * This method generates a function which can be used to cast an object to
9021 * an instance of the given type, icluding the case where the object is a proxy.
9022 * The generated function has the following signature:
9023 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9026 mono_marshal_get_castclass (MonoClass *klass)
9028 static MonoMethodSignature *castclass_sig = NULL;
9031 #ifndef DISABLE_REMOTING
9032 int pos_was_ok, pos_was_ok2;
9035 MonoMethodBuilder *mb;
9038 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9039 if ((res = mono_marshal_find_in_cache (cache, klass)))
9042 if (!castclass_sig) {
9043 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9044 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9045 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9046 castclass_sig->pinvoke = 0;
9049 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9050 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9053 mb->method->save_lmf = 1;
9056 /* check if the object is a proxy that needs special cast */
9057 mono_mb_emit_ldarg (mb, 0);
9058 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9059 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9061 /* The result of MONO_CCASTCLASS can be:
9062 0) the cast is valid
9063 1) cast of unknown proxy type
9064 or an exception if the cast is is invalid
9066 #ifndef DISABLE_REMOTING
9067 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9069 /* get the real proxy from the transparent proxy*/
9071 mono_mb_emit_ldarg (mb, 0);
9072 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9073 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9076 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9079 mono_mb_patch_branch (mb, pos_was_ok);
9080 mono_mb_patch_branch (mb, pos_was_ok2);
9082 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
9083 mono_mb_emit_byte (mb, CEE_POP);
9084 #endif /* DISABLE_REMOTING */
9086 mono_mb_emit_ldarg (mb, 0);
9089 mono_mb_emit_byte (mb, CEE_RET);
9090 #endif /* DISABLE_JIT */
9092 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9094 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
9102 * mono_marshal_get_struct_to_ptr:
9105 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9108 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9110 MonoMethodBuilder *mb;
9111 static MonoMethod *stoptr = NULL;
9115 g_assert (klass != NULL);
9117 mono_marshal_load_type_info (klass);
9119 if (klass->marshal_info->str_to_ptr)
9120 return klass->marshal_info->str_to_ptr;
9123 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9126 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9129 if (klass->blittable) {
9130 mono_mb_emit_byte (mb, CEE_LDARG_1);
9131 mono_mb_emit_byte (mb, CEE_LDARG_0);
9132 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9133 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9134 mono_mb_emit_byte (mb, CEE_PREFIX1);
9135 mono_mb_emit_byte (mb, CEE_CPBLK);
9138 /* allocate local 0 (pointer) src_ptr */
9139 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9140 /* allocate local 1 (pointer) dst_ptr */
9141 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9142 /* allocate local 2 (boolean) delete_old */
9143 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9144 mono_mb_emit_byte (mb, CEE_LDARG_2);
9145 mono_mb_emit_stloc (mb, 2);
9147 /* initialize src_ptr to point to the start of object data */
9148 mono_mb_emit_byte (mb, CEE_LDARG_0);
9149 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9150 mono_mb_emit_stloc (mb, 0);
9152 /* initialize dst_ptr */
9153 mono_mb_emit_byte (mb, CEE_LDARG_1);
9154 mono_mb_emit_stloc (mb, 1);
9156 emit_struct_conv (mb, klass, FALSE);
9159 mono_mb_emit_byte (mb, CEE_RET);
9161 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9162 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9165 mono_marshal_lock ();
9166 if (!klass->marshal_info->str_to_ptr)
9167 klass->marshal_info->str_to_ptr = res;
9169 res = klass->marshal_info->str_to_ptr;
9170 mono_marshal_unlock ();
9175 * mono_marshal_get_ptr_to_struct:
9178 * generates IL code for PtrToStructure (IntPtr src, object structure)
9181 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9183 MonoMethodBuilder *mb;
9184 static MonoMethodSignature *ptostr = NULL;
9188 g_assert (klass != NULL);
9190 mono_marshal_load_type_info (klass);
9192 if (klass->marshal_info->ptr_to_str)
9193 return klass->marshal_info->ptr_to_str;
9196 MonoMethodSignature *sig;
9198 /* Create the signature corresponding to
9199 static void PtrToStructure (IntPtr ptr, object structure);
9200 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9201 sig = mono_create_icall_signature ("void ptr object");
9202 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9204 mono_memory_barrier ();
9208 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9211 if (klass->blittable) {
9212 mono_mb_emit_byte (mb, CEE_LDARG_1);
9213 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9214 mono_mb_emit_byte (mb, CEE_LDARG_0);
9215 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9216 mono_mb_emit_byte (mb, CEE_PREFIX1);
9217 mono_mb_emit_byte (mb, CEE_CPBLK);
9220 /* allocate local 0 (pointer) src_ptr */
9221 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9222 /* allocate local 1 (pointer) dst_ptr */
9223 mono_mb_add_local (mb, &klass->this_arg);
9225 /* initialize src_ptr to point to the start of object data */
9226 mono_mb_emit_byte (mb, CEE_LDARG_0);
9227 mono_mb_emit_stloc (mb, 0);
9229 /* initialize dst_ptr */
9230 mono_mb_emit_byte (mb, CEE_LDARG_1);
9231 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9232 mono_mb_emit_stloc (mb, 1);
9234 emit_struct_conv (mb, klass, TRUE);
9237 mono_mb_emit_byte (mb, CEE_RET);
9239 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9240 res = mono_mb_create (mb, ptostr, 0, info);
9243 mono_marshal_lock ();
9244 if (!klass->marshal_info->ptr_to_str)
9245 klass->marshal_info->ptr_to_str = res;
9247 res = klass->marshal_info->ptr_to_str;
9248 mono_marshal_unlock ();
9253 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9254 * This is used to avoid infinite recursion since it is hard to determine where to
9255 * replace a method with its synchronized wrapper, and where not.
9256 * The runtime should execute METHOD instead of the wrapper.
9259 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9261 MonoMethodBuilder *mb;
9263 MonoMethodSignature *sig;
9265 MonoGenericContext *ctx = NULL;
9266 MonoGenericContainer *container = NULL;
9268 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9269 ctx = &((MonoMethodInflated*)method)->context;
9270 method = ((MonoMethodInflated*)method)->declaring;
9271 container = mono_method_get_generic_container (method);
9273 container = method->klass->generic_container;
9274 g_assert (container);
9277 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9279 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9280 mono_mb_emit_byte (mb, CEE_RET);
9282 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9284 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9285 info->d.synchronized_inner.method = method;
9286 res = mono_mb_create (mb, sig, 0, info);
9290 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9291 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9297 * generates IL code for the synchronized wrapper: the generated method
9298 * calls METHOD while locking 'this' or the parent type.
9301 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9303 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9304 MonoMethodSignature *sig;
9305 MonoExceptionClause *clause;
9306 MonoMethodBuilder *mb;
9310 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9311 MonoGenericContext *ctx = NULL;
9312 MonoMethod *orig_method = NULL;
9313 MonoGenericContainer *container = NULL;
9317 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9320 /* FIXME: Support generic methods too */
9321 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9322 orig_method = method;
9323 ctx = &((MonoMethodInflated*)method)->context;
9324 method = ((MonoMethodInflated*)method)->declaring;
9325 container = mono_method_get_generic_container (method);
9327 container = method->klass->generic_container;
9328 g_assert (container);
9335 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9336 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9340 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9341 if ((res = mono_marshal_find_in_cache (cache, method)))
9345 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9348 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9350 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9351 info->d.synchronized.method = method;
9354 mb->skip_visibility = 1;
9356 if (!MONO_TYPE_IS_VOID (sig->ret))
9357 ret_local = mono_mb_add_local (mb, sig->ret);
9360 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9361 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9362 mono_class_set_type_load_failure (method->klass, "");
9364 /* This will throw the type load exception when the wrapper is compiled */
9365 mono_mb_emit_byte (mb, CEE_LDNULL);
9366 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9367 mono_mb_emit_byte (mb, CEE_POP);
9369 if (!MONO_TYPE_IS_VOID (sig->ret))
9370 mono_mb_emit_ldloc (mb, ret_local);
9371 mono_mb_emit_byte (mb, CEE_RET);
9374 res = mono_mb_create_and_cache_full (cache, method,
9375 mb, sig, sig->param_count + 16, info, NULL);
9383 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9384 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9386 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9387 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9390 mono_marshal_lock ();
9392 if (!enter_method) {
9393 MonoMethodDesc *desc;
9395 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9396 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9397 g_assert (enter_method);
9398 mono_method_desc_free (desc);
9400 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9401 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9402 g_assert (exit_method);
9403 mono_method_desc_free (desc);
9405 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9406 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9407 g_assert (gettypefromhandle_method);
9408 mono_method_desc_free (desc);
9411 mono_marshal_unlock ();
9414 /* Push this or the type object */
9415 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9416 /* We have special handling for this in the JIT */
9417 int index = mono_mb_add_data (mb, method->klass);
9418 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9419 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9420 mono_mb_emit_i4 (mb, index);
9422 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9425 mono_mb_emit_ldarg (mb, 0);
9426 mono_mb_emit_stloc (mb, this_local);
9428 /* Call Monitor::Enter() */
9429 mono_mb_emit_ldloc (mb, this_local);
9430 mono_mb_emit_ldloc_addr (mb, taken_local);
9431 mono_mb_emit_managed_call (mb, enter_method, NULL);
9433 clause->try_offset = mono_mb_get_label (mb);
9435 /* Call the method */
9437 mono_mb_emit_ldarg (mb, 0);
9438 for (i = 0; i < sig->param_count; i++)
9439 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9443 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9444 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9446 mono_mb_emit_managed_call (mb, method, NULL);
9449 if (!MONO_TYPE_IS_VOID (sig->ret))
9450 mono_mb_emit_stloc (mb, ret_local);
9452 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9454 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9455 clause->handler_offset = mono_mb_get_label (mb);
9457 /* Call Monitor::Exit() if needed */
9458 mono_mb_emit_ldloc (mb, taken_local);
9459 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9460 mono_mb_emit_ldloc (mb, this_local);
9461 mono_mb_emit_managed_call (mb, exit_method, NULL);
9462 mono_mb_patch_branch (mb, pos2);
9463 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9465 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9467 mono_mb_patch_branch (mb, pos);
9468 if (!MONO_TYPE_IS_VOID (sig->ret))
9469 mono_mb_emit_ldloc (mb, ret_local);
9470 mono_mb_emit_byte (mb, CEE_RET);
9472 mono_mb_set_clauses (mb, 1, clause);
9477 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9478 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9480 res = mono_mb_create_and_cache_full (cache, method,
9481 mb, sig, sig->param_count + 16, info, NULL);
9490 * the returned method calls 'method' unboxing the this argument
9493 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9495 MonoMethodSignature *sig = mono_method_signature (method);
9497 MonoMethodBuilder *mb;
9502 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9504 if ((res = mono_marshal_find_in_cache (cache, method)))
9507 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9509 g_assert (sig->hasthis);
9512 mono_mb_emit_ldarg (mb, 0);
9513 mono_mb_emit_icon (mb, sizeof (MonoObject));
9514 mono_mb_emit_byte (mb, CEE_ADD);
9515 for (i = 0; i < sig->param_count; ++i)
9516 mono_mb_emit_ldarg (mb, i + 1);
9517 mono_mb_emit_managed_call (mb, method, NULL);
9518 mono_mb_emit_byte (mb, CEE_RET);
9521 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9522 info->d.unbox.method = method;
9524 res = mono_mb_create_and_cache_full (cache, method,
9525 mb, sig, sig->param_count + 16, info, NULL);
9528 /* mono_method_print_code (res); */
9534 STELEMREF_OBJECT, /*no check at all*/
9535 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9536 STELEMREF_CLASS, /*only the klass->parents check*/
9537 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9538 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9539 STELEMREF_KIND_COUNT
9542 static const char *strelemref_wrapper_name[] = {
9543 "object", "sealed_class", "class", "interface", "complex"
9547 is_monomorphic_array (MonoClass *klass)
9549 MonoClass *element_class;
9550 if (klass->rank != 1)
9553 element_class = klass->element_class;
9554 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9558 get_virtual_stelemref_kind (MonoClass *element_class)
9560 if (element_class == mono_defaults.object_class)
9561 return STELEMREF_OBJECT;
9562 if (is_monomorphic_array (element_class))
9563 return STELEMREF_SEALED_CLASS;
9564 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9565 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9566 #ifdef COMPRESSED_INTERFACE_BITMAP
9567 return STELEMREF_COMPLEX;
9569 return STELEMREF_INTERFACE;
9571 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9572 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9573 return STELEMREF_COMPLEX;
9574 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9575 return STELEMREF_SEALED_CLASS;
9576 return STELEMREF_CLASS;
9582 load_array_element_address (MonoMethodBuilder *mb)
9584 mono_mb_emit_ldarg (mb, 0);
9585 mono_mb_emit_ldarg (mb, 1);
9586 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9590 load_array_class (MonoMethodBuilder *mb, int aklass)
9592 mono_mb_emit_ldarg (mb, 0);
9593 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9594 mono_mb_emit_byte (mb, CEE_LDIND_I);
9595 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9596 mono_mb_emit_byte (mb, CEE_LDIND_I);
9597 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9598 mono_mb_emit_byte (mb, CEE_LDIND_I);
9599 mono_mb_emit_stloc (mb, aklass);
9603 load_value_class (MonoMethodBuilder *mb, int vklass)
9605 mono_mb_emit_ldarg (mb, 2);
9606 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9607 mono_mb_emit_byte (mb, CEE_LDIND_I);
9608 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9609 mono_mb_emit_byte (mb, CEE_LDIND_I);
9610 mono_mb_emit_stloc (mb, vklass);
9616 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9618 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9619 printf ("slow vstore of %s\n", name);
9626 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9627 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9628 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9629 * - Add a case for arrays of arrays.
9632 get_virtual_stelemref_wrapper (int kind)
9634 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9635 static MonoMethodSignature *signature;
9636 MonoMethodBuilder *mb;
9639 const char *param_names [16];
9640 guint32 b1, b2, b3, b4;
9641 int aklass, vklass, vtable, uiid;
9642 int array_slot_addr;
9645 if (cached_methods [kind])
9646 return cached_methods [kind];
9648 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9649 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9653 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9655 /* void this::stelemref (size_t idx, void* value) */
9656 sig->ret = &mono_defaults.void_class->byval_arg;
9657 sig->hasthis = TRUE;
9658 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9659 sig->params [1] = &mono_defaults.object_class->byval_arg;
9664 param_names [0] = "index";
9665 param_names [1] = "value";
9666 mono_mb_set_param_names (mb, param_names);
9668 /*For now simply call plain old stelemref*/
9670 case STELEMREF_OBJECT:
9671 /* ldelema (implicit bound check) */
9672 load_array_element_address (mb);
9674 mono_mb_emit_ldarg (mb, 2);
9675 mono_mb_emit_byte (mb, CEE_STIND_REF);
9676 mono_mb_emit_byte (mb, CEE_RET);
9679 case STELEMREF_COMPLEX:
9681 <ldelema (bound check)>
9684 if (!mono_object_isinst (value, aklass))
9688 *array_slot_addr = value;
9691 throw new ArrayTypeMismatchException ();
9694 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9695 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9699 /*Use this to debug/record stores that are going thru the slow path*/
9700 MonoMethodSignature *csig;
9701 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9702 csig->ret = &mono_defaults.void_class->byval_arg;
9703 csig->params [0] = &mono_defaults.object_class->byval_arg;
9704 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9705 csig->params [2] = &mono_defaults.object_class->byval_arg;
9706 mono_mb_emit_ldarg (mb, 0);
9707 mono_mb_emit_ldarg (mb, 1);
9708 mono_mb_emit_ldarg (mb, 2);
9709 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9713 /* ldelema (implicit bound check) */
9714 load_array_element_address (mb);
9715 mono_mb_emit_stloc (mb, array_slot_addr);
9717 /* if (!value) goto do_store */
9718 mono_mb_emit_ldarg (mb, 2);
9719 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9721 /* aklass = array->vtable->klass->element_class */
9722 load_array_class (mb, aklass);
9724 /*if (mono_object_isinst (value, aklass)) */
9725 mono_mb_emit_ldarg (mb, 2);
9726 mono_mb_emit_ldloc (mb, aklass);
9727 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9728 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9731 mono_mb_patch_branch (mb, b1);
9732 mono_mb_emit_ldloc (mb, array_slot_addr);
9733 mono_mb_emit_ldarg (mb, 2);
9734 mono_mb_emit_byte (mb, CEE_STIND_REF);
9735 mono_mb_emit_byte (mb, CEE_RET);
9738 mono_mb_patch_branch (mb, b2);
9740 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9743 case STELEMREF_SEALED_CLASS:
9745 <ldelema (bound check)>
9749 aklass = array->vtable->klass->element_class;
9750 vklass = value->vtable->klass;
9752 if (vklass != aklass)
9756 *array_slot_addr = value;
9759 throw new ArrayTypeMismatchException ();
9761 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9762 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9763 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9766 /* ldelema (implicit bound check) */
9767 load_array_element_address (mb);
9768 mono_mb_emit_stloc (mb, array_slot_addr);
9770 /* if (!value) goto do_store */
9771 mono_mb_emit_ldarg (mb, 2);
9772 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9774 /* aklass = array->vtable->klass->element_class */
9775 load_array_class (mb, aklass);
9777 /* vklass = value->vtable->klass */
9778 load_value_class (mb, vklass);
9780 /*if (vklass != aklass) goto do_exception; */
9781 mono_mb_emit_ldloc (mb, aklass);
9782 mono_mb_emit_ldloc (mb, vklass);
9783 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9786 mono_mb_patch_branch (mb, b1);
9787 mono_mb_emit_ldloc (mb, array_slot_addr);
9788 mono_mb_emit_ldarg (mb, 2);
9789 mono_mb_emit_byte (mb, CEE_STIND_REF);
9790 mono_mb_emit_byte (mb, CEE_RET);
9793 mono_mb_patch_branch (mb, b2);
9794 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9797 case STELEMREF_CLASS:
9800 <ldelema (bound check)>
9804 aklass = array->vtable->klass->element_class;
9805 vklass = value->vtable->klass;
9807 if (vklass->idepth < aklass->idepth)
9810 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9814 *array_slot_addr = value;
9818 throw new ArrayTypeMismatchException ();
9820 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9821 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9822 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9824 /* ldelema (implicit bound check) */
9825 load_array_element_address (mb);
9826 mono_mb_emit_stloc (mb, array_slot_addr);
9828 /* if (!value) goto do_store */
9829 mono_mb_emit_ldarg (mb, 2);
9830 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9832 /* aklass = array->vtable->klass->element_class */
9833 load_array_class (mb, aklass);
9835 /* vklass = value->vtable->klass */
9836 load_value_class (mb, vklass);
9838 /*if (mono_object_isinst (value, aklass)) */
9839 mono_mb_emit_ldarg (mb, 2);
9840 mono_mb_emit_ldloc (mb, aklass);
9841 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9842 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9844 /* if (vklass->idepth < aklass->idepth) goto failue */
9845 mono_mb_emit_ldloc (mb, vklass);
9846 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9847 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9849 mono_mb_emit_ldloc (mb, aklass);
9850 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9851 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9853 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9855 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9856 mono_mb_emit_ldloc (mb, vklass);
9857 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9858 mono_mb_emit_byte (mb, CEE_LDIND_I);
9860 mono_mb_emit_ldloc (mb, aklass);
9861 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9862 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9863 mono_mb_emit_icon (mb, 1);
9864 mono_mb_emit_byte (mb, CEE_SUB);
9865 mono_mb_emit_icon (mb, sizeof (void*));
9866 mono_mb_emit_byte (mb, CEE_MUL);
9867 mono_mb_emit_byte (mb, CEE_ADD);
9868 mono_mb_emit_byte (mb, CEE_LDIND_I);
9870 mono_mb_emit_ldloc (mb, aklass);
9871 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9874 mono_mb_patch_branch (mb, b1);
9875 mono_mb_emit_ldloc (mb, array_slot_addr);
9876 mono_mb_emit_ldarg (mb, 2);
9877 mono_mb_emit_byte (mb, CEE_STIND_REF);
9878 mono_mb_emit_byte (mb, CEE_RET);
9881 mono_mb_patch_branch (mb, b2);
9882 mono_mb_patch_branch (mb, b3);
9883 mono_mb_patch_branch (mb, b4);
9885 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9888 case STELEMREF_INTERFACE:
9895 klass = array->obj.vtable->klass->element_class;
9897 uiid = klass->interface_id;
9898 if (uiid > vt->max_interface_id)
9900 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9903 mono_array_setref (array, index, value);
9906 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9908 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9909 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9910 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9911 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9913 /* ldelema (implicit bound check) */
9914 load_array_element_address (mb);
9915 mono_mb_emit_stloc (mb, array_slot_addr);
9917 /* if (!value) goto do_store */
9918 mono_mb_emit_ldarg (mb, 2);
9919 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9921 /* klass = array->vtable->klass->element_class */
9922 load_array_class (mb, aklass);
9924 /* vt = value->vtable */
9925 mono_mb_emit_ldarg (mb, 2);
9926 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9927 mono_mb_emit_byte (mb, CEE_LDIND_I);
9928 mono_mb_emit_stloc (mb, vtable);
9930 /* uiid = klass->interface_id; */
9931 mono_mb_emit_ldloc (mb, aklass);
9932 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9933 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9934 mono_mb_emit_stloc (mb, uiid);
9936 /*if (uiid > vt->max_interface_id)*/
9937 mono_mb_emit_ldloc (mb, uiid);
9938 mono_mb_emit_ldloc (mb, vtable);
9939 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9940 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9941 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9943 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9945 /*vt->interface_bitmap*/
9946 mono_mb_emit_ldloc (mb, vtable);
9947 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9948 mono_mb_emit_byte (mb, CEE_LDIND_I);
9951 mono_mb_emit_ldloc (mb, uiid);
9952 mono_mb_emit_icon (mb, 3);
9953 mono_mb_emit_byte (mb, CEE_SHR_UN);
9955 /*vt->interface_bitmap [(uiid) >> 3]*/
9956 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9957 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9959 /*(1 << ((uiid)&7)))*/
9960 mono_mb_emit_icon (mb, 1);
9961 mono_mb_emit_ldloc (mb, uiid);
9962 mono_mb_emit_icon (mb, 7);
9963 mono_mb_emit_byte (mb, CEE_AND);
9964 mono_mb_emit_byte (mb, CEE_SHL);
9966 /*bitwise and the whole thing*/
9967 mono_mb_emit_byte (mb, CEE_AND);
9968 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9971 mono_mb_patch_branch (mb, b1);
9972 mono_mb_emit_ldloc (mb, array_slot_addr);
9973 mono_mb_emit_ldarg (mb, 2);
9974 mono_mb_emit_byte (mb, CEE_STIND_REF);
9975 mono_mb_emit_byte (mb, CEE_RET);
9978 mono_mb_patch_branch (mb, b2);
9979 mono_mb_patch_branch (mb, b3);
9980 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9984 mono_mb_emit_ldarg (mb, 0);
9985 mono_mb_emit_ldarg (mb, 1);
9986 mono_mb_emit_ldarg (mb, 2);
9987 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9988 mono_mb_emit_byte (mb, CEE_RET);
9991 #endif /* DISABLE_JIT */
9992 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9993 info->d.virtual_stelemref.kind = kind;
9994 res = mono_mb_create (mb, signature, 4, info);
9995 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9997 mono_marshal_lock ();
9998 if (!cached_methods [kind]) {
9999 cached_methods [kind] = res;
10000 mono_marshal_unlock ();
10002 mono_marshal_unlock ();
10003 mono_free_method (res);
10007 return cached_methods [kind];
10011 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10015 g_assert (array_class->rank == 1);
10016 kind = get_virtual_stelemref_kind (array_class->element_class);
10018 return get_virtual_stelemref_wrapper (kind);
10022 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10027 *nwrappers = STELEMREF_KIND_COUNT;
10028 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10029 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10030 res [i] = get_virtual_stelemref_wrapper (i);
10035 mono_marshal_get_stelemref (void)
10037 static MonoMethod* ret = NULL;
10038 MonoMethodSignature *sig;
10039 MonoMethodBuilder *mb;
10042 guint32 b1, b2, b3, b4;
10044 int aklass, vklass;
10045 int array_slot_addr;
10050 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10053 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10055 /* void stelemref (void* array, int idx, void* value) */
10056 sig->ret = &mono_defaults.void_class->byval_arg;
10057 sig->params [0] = &mono_defaults.object_class->byval_arg;
10058 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10059 sig->params [2] = &mono_defaults.object_class->byval_arg;
10061 #ifndef DISABLE_JIT
10062 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10063 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10064 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10068 <ldelema (bound check)>
10072 aklass = array->vtable->klass->element_class;
10073 vklass = value->vtable->klass;
10075 if (vklass->idepth < aklass->idepth)
10078 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10082 *array_slot_addr = value;
10086 if (mono_object_isinst (value, aklass))
10089 throw new ArrayTypeMismatchException ();
10092 /* ldelema (implicit bound check) */
10093 mono_mb_emit_ldarg (mb, 0);
10094 mono_mb_emit_ldarg (mb, 1);
10095 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10096 mono_mb_emit_stloc (mb, array_slot_addr);
10098 /* if (!value) goto do_store */
10099 mono_mb_emit_ldarg (mb, 2);
10100 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10102 /* aklass = array->vtable->klass->element_class */
10103 mono_mb_emit_ldarg (mb, 0);
10104 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10105 mono_mb_emit_byte (mb, CEE_LDIND_I);
10106 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10107 mono_mb_emit_byte (mb, CEE_LDIND_I);
10108 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10109 mono_mb_emit_byte (mb, CEE_LDIND_I);
10110 mono_mb_emit_stloc (mb, aklass);
10112 /* vklass = value->vtable->klass */
10113 mono_mb_emit_ldarg (mb, 2);
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_stloc (mb, vklass);
10120 /* if (vklass->idepth < aklass->idepth) goto failue */
10121 mono_mb_emit_ldloc (mb, vklass);
10122 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10123 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10125 mono_mb_emit_ldloc (mb, aklass);
10126 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10127 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10129 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10131 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10132 mono_mb_emit_ldloc (mb, vklass);
10133 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10134 mono_mb_emit_byte (mb, CEE_LDIND_I);
10136 mono_mb_emit_ldloc (mb, aklass);
10137 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10138 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10139 mono_mb_emit_icon (mb, 1);
10140 mono_mb_emit_byte (mb, CEE_SUB);
10141 mono_mb_emit_icon (mb, sizeof (void*));
10142 mono_mb_emit_byte (mb, CEE_MUL);
10143 mono_mb_emit_byte (mb, CEE_ADD);
10144 mono_mb_emit_byte (mb, CEE_LDIND_I);
10146 mono_mb_emit_ldloc (mb, aklass);
10148 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10150 copy_pos = mono_mb_get_label (mb);
10152 mono_mb_patch_branch (mb, b1);
10153 mono_mb_emit_ldloc (mb, array_slot_addr);
10154 mono_mb_emit_ldarg (mb, 2);
10155 mono_mb_emit_byte (mb, CEE_STIND_REF);
10157 mono_mb_emit_byte (mb, CEE_RET);
10160 mono_mb_patch_branch (mb, b2);
10161 mono_mb_patch_branch (mb, b3);
10163 mono_mb_emit_ldarg (mb, 2);
10164 mono_mb_emit_ldloc (mb, aklass);
10165 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10167 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10168 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10169 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10171 mono_mb_emit_byte (mb, CEE_RET);
10173 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10174 ret = mono_mb_create (mb, sig, 4, info);
10181 * mono_marshal_get_gsharedvt_in_wrapper:
10183 * This wrapper handles calls from normal code to gsharedvt code.
10186 mono_marshal_get_gsharedvt_in_wrapper (void)
10188 static MonoMethod* ret = NULL;
10189 MonoMethodSignature *sig;
10190 MonoMethodBuilder *mb;
10196 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10198 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10199 sig->ret = &mono_defaults.void_class->byval_arg;
10201 #ifndef DISABLE_JIT
10203 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10205 mono_mb_emit_byte (mb, CEE_RET);
10207 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10208 ret = mono_mb_create (mb, sig, 4, info);
10215 * mono_marshal_get_gsharedvt_out_wrapper:
10217 * This wrapper handles calls from gsharedvt code to normal code.
10220 mono_marshal_get_gsharedvt_out_wrapper (void)
10222 static MonoMethod* ret = NULL;
10223 MonoMethodSignature *sig;
10224 MonoMethodBuilder *mb;
10230 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10232 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10233 sig->ret = &mono_defaults.void_class->byval_arg;
10235 #ifndef DISABLE_JIT
10237 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10239 mono_mb_emit_byte (mb, CEE_RET);
10241 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10242 ret = mono_mb_create (mb, sig, 4, info);
10251 MonoMethod *method;
10254 /* LOCKING: vars accessed under the marshal lock */
10255 static ArrayElemAddr *elem_addr_cache = NULL;
10256 static int elem_addr_cache_size = 0;
10257 static int elem_addr_cache_next = 0;
10260 * mono_marshal_get_array_address:
10261 * @rank: rank of the array type
10262 * @elem_size: size in bytes of an element of an array.
10264 * Returns a MonoMethod that implements the code to get the address
10265 * of an element in a multi-dimenasional array of @rank dimensions.
10266 * The returned method takes an array as the first argument and then
10267 * @rank indexes for the @rank dimensions.
10268 * If ELEM_SIZE is 0, read the array size from the array object.
10271 mono_marshal_get_array_address (int rank, int elem_size)
10274 MonoMethodBuilder *mb;
10275 MonoMethodSignature *sig;
10278 int i, bounds, ind, realidx;
10279 int branch_pos, *branch_positions;
10283 mono_marshal_lock ();
10284 for (i = 0; i < elem_addr_cache_next; ++i) {
10285 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10286 ret = elem_addr_cache [i].method;
10290 mono_marshal_unlock ();
10294 branch_positions = g_new0 (int, rank);
10296 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10298 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10299 sig->ret = &mono_defaults.int_class->byval_arg;
10300 sig->params [0] = &mono_defaults.object_class->byval_arg;
10301 for (i = 0; i < rank; ++i) {
10302 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10305 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10306 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10309 #ifndef DISABLE_JIT
10310 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10311 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10312 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10314 /* bounds = array->bounds; */
10315 mono_mb_emit_ldarg (mb, 0);
10316 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10317 mono_mb_emit_byte (mb, CEE_LDIND_I);
10318 mono_mb_emit_stloc (mb, bounds);
10320 /* ind is the overall element index, realidx is the partial index in a single dimension */
10321 /* ind = idx0 - bounds [0].lower_bound */
10322 mono_mb_emit_ldarg (mb, 1);
10323 mono_mb_emit_ldloc (mb, bounds);
10324 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10325 mono_mb_emit_byte (mb, CEE_ADD);
10326 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10327 mono_mb_emit_byte (mb, CEE_SUB);
10328 mono_mb_emit_stloc (mb, ind);
10329 /* if (ind >= bounds [0].length) goto exeception; */
10330 mono_mb_emit_ldloc (mb, ind);
10331 mono_mb_emit_ldloc (mb, bounds);
10332 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10333 mono_mb_emit_byte (mb, CEE_ADD);
10334 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10335 /* note that we use unsigned comparison */
10336 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10338 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10339 * We could also decide to ignore the passed elem_size and get it
10340 * from the array object, to reduce the number of methods we generate:
10341 * the additional cost is 3 memory loads and a non-immediate mul.
10343 for (i = 1; i < rank; ++i) {
10344 /* realidx = idxi - bounds [i].lower_bound */
10345 mono_mb_emit_ldarg (mb, 1 + i);
10346 mono_mb_emit_ldloc (mb, bounds);
10347 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10348 mono_mb_emit_byte (mb, CEE_ADD);
10349 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10350 mono_mb_emit_byte (mb, CEE_SUB);
10351 mono_mb_emit_stloc (mb, realidx);
10352 /* if (realidx >= bounds [i].length) goto exeception; */
10353 mono_mb_emit_ldloc (mb, realidx);
10354 mono_mb_emit_ldloc (mb, bounds);
10355 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10356 mono_mb_emit_byte (mb, CEE_ADD);
10357 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10358 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10359 /* ind = ind * bounds [i].length + realidx */
10360 mono_mb_emit_ldloc (mb, ind);
10361 mono_mb_emit_ldloc (mb, bounds);
10362 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10363 mono_mb_emit_byte (mb, CEE_ADD);
10364 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10365 mono_mb_emit_byte (mb, CEE_MUL);
10366 mono_mb_emit_ldloc (mb, realidx);
10367 mono_mb_emit_byte (mb, CEE_ADD);
10368 mono_mb_emit_stloc (mb, ind);
10371 /* return array->vector + ind * element_size */
10372 mono_mb_emit_ldarg (mb, 0);
10373 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10374 mono_mb_emit_ldloc (mb, ind);
10376 mono_mb_emit_icon (mb, elem_size);
10378 /* Load arr->vtable->klass->sizes.element_class */
10379 mono_mb_emit_ldarg (mb, 0);
10380 mono_mb_emit_byte (mb, CEE_CONV_I);
10381 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10382 mono_mb_emit_byte (mb, CEE_ADD);
10383 mono_mb_emit_byte (mb, CEE_LDIND_I);
10384 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10385 mono_mb_emit_byte (mb, CEE_ADD);
10386 mono_mb_emit_byte (mb, CEE_LDIND_I);
10387 /* sizes is an union, so this reads sizes.element_size */
10388 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10389 mono_mb_emit_byte (mb, CEE_ADD);
10390 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10392 mono_mb_emit_byte (mb, CEE_MUL);
10393 mono_mb_emit_byte (mb, CEE_ADD);
10394 mono_mb_emit_byte (mb, CEE_RET);
10396 /* patch the branches to get here and throw */
10397 for (i = 1; i < rank; ++i) {
10398 mono_mb_patch_branch (mb, branch_positions [i]);
10400 mono_mb_patch_branch (mb, branch_pos);
10401 /* throw exception */
10402 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10404 g_free (branch_positions);
10405 #endif /* DISABLE_JIT */
10407 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10408 info->d.element_addr.rank = rank;
10409 info->d.element_addr.elem_size = elem_size;
10410 ret = mono_mb_create (mb, sig, 4, info);
10413 /* cache the result */
10415 mono_marshal_lock ();
10416 for (i = 0; i < elem_addr_cache_next; ++i) {
10417 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10418 /* FIXME: free ret */
10419 ret = elem_addr_cache [i].method;
10425 if (elem_addr_cache_next >= elem_addr_cache_size) {
10426 int new_size = elem_addr_cache_size + 4;
10427 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10428 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10429 g_free (elem_addr_cache);
10430 elem_addr_cache = new_array;
10431 elem_addr_cache_size = new_size;
10433 elem_addr_cache [elem_addr_cache_next].rank = rank;
10434 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10435 elem_addr_cache [elem_addr_cache_next].method = ret;
10436 elem_addr_cache_next ++;
10438 mono_marshal_unlock ();
10443 * mono_marshal_get_array_accessor_wrapper:
10445 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10448 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10450 MonoMethodSignature *sig;
10451 MonoMethodBuilder *mb;
10455 MonoGenericContext *ctx = NULL;
10456 MonoMethod *orig_method = NULL;
10457 MonoGenericContainer *container = NULL;
10461 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10462 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10463 * FIXME: Use generic methods.
10470 g_assert_not_reached ();
10472 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10473 if ((res = mono_marshal_find_in_cache (cache, method)))
10477 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10480 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10482 #ifndef DISABLE_JIT
10483 /* Call the method */
10485 mono_mb_emit_ldarg (mb, 0);
10486 for (i = 0; i < sig->param_count; i++)
10487 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10491 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10492 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10494 mono_mb_emit_managed_call (mb, method, NULL);
10496 mono_mb_emit_byte (mb, CEE_RET);
10499 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10500 info->d.array_accessor.method = method;
10504 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10505 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10507 res = mono_mb_create_and_cache_full (cache, method,
10508 mb, sig, sig->param_count + 16,
10517 static inline void*
10518 mono_marshal_alloc_co_task_mem (size_t size)
10520 if ((gulong)size == 0)
10521 /* This returns a valid pointer for size 0 on MS.NET */
10524 return g_try_malloc ((gulong)size);
10529 mono_marshal_alloc (gulong size, MonoError *error)
10533 mono_error_init (error);
10535 res = mono_marshal_alloc_co_task_mem (size);
10537 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10542 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10544 ves_icall_marshal_alloc (gulong size)
10547 void *ret = mono_marshal_alloc (size, &error);
10548 if (!mono_error_ok (&error)) {
10549 mono_error_set_pending_exception (&error);
10558 mono_marshal_free_co_task_mem (void *ptr)
10566 mono_marshal_free (gpointer ptr)
10568 mono_marshal_free_co_task_mem (ptr);
10572 mono_marshal_free_array (gpointer *ptr, int size)
10579 for (i = 0; i < size; i++)
10585 mono_marshal_string_to_utf16 (MonoString *s)
10587 return s ? mono_string_chars (s) : NULL;
10590 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10592 mono_marshal_string_to_utf16_copy (MonoString *s)
10598 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10599 if (!mono_error_ok (&error)) {
10600 mono_error_set_pending_exception (&error);
10603 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10604 res [mono_string_length (s)] = 0;
10610 * mono_marshal_set_last_error:
10612 * This function is invoked to set the last error value from a P/Invoke call
10613 * which has SetLastError set.
10616 mono_marshal_set_last_error (void)
10619 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10621 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10626 mono_marshal_set_last_error_windows (int error)
10629 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10634 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10635 gpointer dest, gint32 length)
10640 MONO_CHECK_ARG_NULL (src,);
10641 MONO_CHECK_ARG_NULL (dest,);
10643 if (src->obj.vtable->klass->rank != 1) {
10644 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10647 if (start_index < 0) {
10648 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10652 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10655 if (start_index + length > mono_array_length (src)) {
10656 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10660 element_size = mono_array_element_size (src->obj.vtable->klass);
10662 /* no references should be involved */
10663 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10665 memcpy (dest, source_addr, length * element_size);
10669 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10670 MonoArray *dest, gint32 length)
10675 MONO_CHECK_ARG_NULL (src,);
10676 MONO_CHECK_ARG_NULL (dest,);
10678 if (dest->obj.vtable->klass->rank != 1) {
10679 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10682 if (start_index < 0) {
10683 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10687 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10690 if (start_index + length > mono_array_length (dest)) {
10691 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10694 element_size = mono_array_element_size (dest->obj.vtable->klass);
10696 /* no references should be involved */
10697 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10699 memcpy (dest_addr, src, length * element_size);
10703 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10708 return mono_string_new (mono_domain_get (), ptr);
10712 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10715 MonoString *result = NULL;
10716 mono_error_init (&error);
10718 mono_error_set_argument_null (&error, "ptr", "");
10720 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10721 mono_error_set_pending_exception (&error);
10726 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10729 MonoString *res = NULL;
10730 MonoDomain *domain = mono_domain_get ();
10740 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10741 if (!mono_error_ok (&error)) {
10742 mono_error_set_pending_exception (&error);
10749 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10752 MonoString *res = NULL;
10753 MonoDomain *domain = mono_domain_get ();
10755 mono_error_init (&error);
10759 mono_error_set_argument_null (&error, "ptr", "");
10761 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10764 if (!mono_error_ok (&error))
10765 mono_error_set_pending_exception (&error);
10770 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10772 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10776 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10782 MONO_CHECK_ARG_NULL (rtype, 0);
10784 type = rtype->type;
10785 klass = mono_class_from_mono_type (type);
10786 if (!mono_class_init (klass)) {
10787 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10791 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10793 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10794 return sizeof (gpointer);
10795 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10797 MonoException *exc;
10799 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10800 exc = mono_get_exception_argument ("t", msg);
10802 mono_set_pending_exception (exc);
10806 return mono_class_native_size (klass, NULL);
10810 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10813 MonoMethod *method;
10816 MONO_CHECK_ARG_NULL (obj,);
10817 MONO_CHECK_ARG_NULL (dst,);
10819 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10823 pa [2] = &delete_old;
10825 mono_runtime_invoke_checked (method, NULL, pa, &error);
10826 if (!mono_error_ok (&error))
10827 mono_error_set_pending_exception (&error);
10831 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10833 MonoMethod *method;
10836 mono_error_init (error);
10838 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10843 mono_runtime_invoke_checked (method, NULL, pa, error);
10847 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10852 MONO_CHECK_ARG_NULL (src,);
10853 MONO_CHECK_ARG_NULL (dst,);
10855 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10857 if (t->type == MONO_TYPE_VALUETYPE) {
10858 MonoException *exc;
10861 tmp = g_strdup_printf ("Destination is a boxed value type.");
10862 exc = mono_get_exception_argument ("dst", tmp);
10865 mono_set_pending_exception (exc);
10869 ptr_to_structure (src, dst, &error);
10870 if (!mono_error_ok (&error))
10871 mono_error_set_pending_exception (&error);
10875 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10879 MonoDomain *domain = mono_domain_get ();
10884 MONO_CHECK_ARG_NULL (type, NULL);
10886 klass = mono_class_from_mono_type (type->type);
10887 if (!mono_class_init (klass)) {
10888 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10892 res = mono_object_new_checked (domain, klass, &error);
10893 if (!mono_error_ok (&error)) {
10894 mono_error_set_pending_exception (&error);
10898 ptr_to_structure (src, res, &error);
10899 if (!mono_error_ok (&error)) {
10900 mono_error_set_pending_exception (&error);
10908 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10911 MonoMarshalType *info;
10914 int match_index = -1;
10916 MONO_CHECK_ARG_NULL (type, 0);
10917 MONO_CHECK_ARG_NULL (field_name, 0);
10919 fname = mono_string_to_utf8_checked (field_name, &error);
10920 if (mono_error_set_pending_exception (&error))
10922 klass = mono_class_from_mono_type (type->type);
10923 if (!mono_class_init (klass)) {
10924 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10928 while (klass && match_index == -1) {
10929 MonoClassField* field;
10931 gpointer iter = NULL;
10932 while ((field = mono_class_get_fields (klass, &iter))) {
10933 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10935 if (!strcmp (fname, mono_field_get_name (field))) {
10942 if (match_index == -1)
10943 klass = klass->parent;
10948 if(match_index == -1) {
10949 MonoException* exc;
10952 /* Get back original class instance */
10953 klass = mono_class_from_mono_type (type->type);
10955 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10956 exc = mono_get_exception_argument ("fieldName", tmp);
10959 mono_set_pending_exception ((MonoException*)exc);
10963 info = mono_marshal_load_type_info (klass);
10964 return info->fields [match_index].offset;
10969 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10972 char *ret = mono_string_to_utf8_checked (string, &error);
10973 mono_error_set_pending_exception (&error);
10978 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10980 if (string == NULL)
10983 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10985 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10986 res [mono_string_length (string)] = 0;
10990 #endif /* !HOST_WIN32 */
10993 mono_struct_delete_old (MonoClass *klass, char *ptr)
10995 MonoMarshalType *info;
10998 info = mono_marshal_load_type_info (klass);
11000 for (i = 0; i < info->num_fields; i++) {
11001 MonoMarshalConv conv;
11002 MonoType *ftype = info->fields [i].field->type;
11005 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11008 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11009 klass->unicode, &conv);
11011 cpos = ptr + info->fields [i].offset;
11014 case MONO_MARSHAL_CONV_NONE:
11015 if (MONO_TYPE_ISSTRUCT (ftype)) {
11016 mono_struct_delete_old (ftype->data.klass, cpos);
11020 case MONO_MARSHAL_CONV_STR_LPWSTR:
11021 /* We assume this field points inside a MonoString */
11023 case MONO_MARSHAL_CONV_STR_LPTSTR:
11024 #ifdef TARGET_WIN32
11025 /* We assume this field points inside a MonoString
11029 case MONO_MARSHAL_CONV_STR_LPSTR:
11030 case MONO_MARSHAL_CONV_STR_BSTR:
11031 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11032 case MONO_MARSHAL_CONV_STR_TBSTR:
11033 case MONO_MARSHAL_CONV_STR_UTF8STR:
11034 mono_marshal_free (*(gpointer *)cpos);
11044 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11048 MONO_CHECK_ARG_NULL (src,);
11049 MONO_CHECK_ARG_NULL (type,);
11051 klass = mono_class_from_mono_type (type->type);
11052 if (!mono_class_init (klass)) {
11053 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11057 mono_struct_delete_old (klass, (char *)src);
11061 static inline void *
11062 mono_marshal_alloc_hglobal (size_t size)
11064 return g_try_malloc (size);
11069 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11072 size_t s = (size_t)size;
11075 /* This returns a valid pointer for size 0 on MS.NET */
11078 res = mono_marshal_alloc_hglobal (s);
11081 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11089 static inline gpointer
11090 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11092 return g_try_realloc (ptr, size);
11097 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11100 size_t s = (size_t)size;
11103 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11107 res = mono_marshal_realloc_hglobal (ptr, s);
11110 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11119 mono_marshal_free_hglobal (gpointer ptr)
11127 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11129 mono_marshal_free_hglobal (ptr);
11133 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11135 void *res = mono_marshal_alloc_co_task_mem (size);
11138 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11145 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11150 res = CoTaskMemAlloc (size);
11153 /* This returns a valid pointer for size 0 on MS.NET */
11156 res = g_try_malloc (size);
11159 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11166 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11168 mono_marshal_free_co_task_mem (ptr);
11173 static inline gpointer
11174 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11176 return g_try_realloc (ptr, (gulong)size);
11181 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11183 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11186 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11193 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11195 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11199 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11201 MonoClass *klass = mono_type_get_class (type->type);
11202 if (!mono_class_init (klass)) {
11203 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11207 return mono_ftnptr_to_delegate (klass, ftn);
11211 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11213 return mono_delegate_to_ftnptr (delegate);
11217 * mono_marshal_is_loading_type_info:
11219 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11223 mono_marshal_is_loading_type_info (MonoClass *klass)
11225 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11227 return g_slist_find (loads_list, klass) != NULL;
11231 * mono_marshal_load_type_info:
11233 * Initialize klass->marshal_info using information from metadata. This function can
11234 * recursively call itself, and the caller is responsible to avoid that by calling
11235 * mono_marshal_is_loading_type_info () beforehand.
11237 * LOCKING: Acquires the loader lock.
11240 mono_marshal_load_type_info (MonoClass* klass)
11243 guint32 native_size = 0, min_align = 1, packing;
11244 MonoMarshalType *info;
11245 MonoClassField* field;
11248 GSList *loads_list;
11250 g_assert (klass != NULL);
11252 if (klass->marshal_info)
11253 return klass->marshal_info;
11255 if (!klass->inited)
11256 mono_class_init (klass);
11258 if (klass->marshal_info)
11259 return klass->marshal_info;
11262 * This function can recursively call itself, so we keep the list of classes which are
11263 * under initialization in a TLS list.
11265 g_assert (!mono_marshal_is_loading_type_info (klass));
11266 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11267 loads_list = g_slist_prepend (loads_list, klass);
11268 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11271 while ((field = mono_class_get_fields (klass, &iter))) {
11272 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11274 if (mono_field_is_deleted (field))
11279 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11281 /* The mempool is protected by the loader lock */
11282 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11283 info->num_fields = count;
11285 /* Try to find a size for this type in metadata */
11286 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11288 if (klass->parent) {
11289 int parent_size = mono_class_native_size (klass->parent, NULL);
11291 /* Add parent size to real size */
11292 native_size += parent_size;
11293 info->native_size = parent_size;
11296 packing = klass->packing_size ? klass->packing_size : 8;
11299 while ((field = mono_class_get_fields (klass, &iter))) {
11303 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11306 if (mono_field_is_deleted (field))
11308 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11309 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11310 NULL, NULL, &info->fields [j].mspec);
11312 info->fields [j].field = field;
11314 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11315 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11316 /* This field is a hack inserted by MCS to empty structures */
11321 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11322 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11323 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11324 &align, TRUE, klass->unicode);
11325 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11326 min_align = MAX (align, min_align);
11327 info->fields [j].offset = info->native_size;
11328 info->fields [j].offset += align - 1;
11329 info->fields [j].offset &= ~(align - 1);
11330 info->native_size = info->fields [j].offset + size;
11332 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11333 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11334 &align, TRUE, klass->unicode);
11335 min_align = MAX (align, min_align);
11336 info->fields [j].offset = field->offset - sizeof (MonoObject);
11337 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11343 if (klass->byval_arg.type == MONO_TYPE_PTR)
11344 info->native_size = sizeof (gpointer);
11346 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11347 info->native_size = MAX (native_size, info->native_size);
11349 * If the provided Size is equal or larger than the calculated size, and there
11350 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11352 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11353 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11356 min_align = MIN (min_align, packing);
11360 if (info->native_size & (min_align - 1)) {
11361 info->native_size += min_align - 1;
11362 info->native_size &= ~(min_align - 1);
11365 info->min_align = min_align;
11367 /* Update the class's blittable info, if the layouts don't match */
11368 if (info->native_size != mono_class_value_size (klass, NULL))
11369 klass->blittable = FALSE;
11371 /* If this is an array type, ensure that we have element info */
11372 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11373 mono_marshal_load_type_info (klass->element_class);
11376 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11377 loads_list = g_slist_remove (loads_list, klass);
11378 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11380 mono_marshal_lock ();
11381 if (!klass->marshal_info) {
11382 /*We do double-checking locking on marshal_info */
11383 mono_memory_barrier ();
11384 klass->marshal_info = info;
11386 mono_marshal_unlock ();
11388 return klass->marshal_info;
11392 * mono_class_native_size:
11395 * Returns: the native size of an object instance (when marshaled
11396 * to unmanaged code)
11399 mono_class_native_size (MonoClass *klass, guint32 *align)
11401 if (!klass->marshal_info) {
11402 if (mono_marshal_is_loading_type_info (klass)) {
11407 mono_marshal_load_type_info (klass);
11412 *align = klass->marshal_info->min_align;
11414 return klass->marshal_info->native_size;
11418 * mono_type_native_stack_size:
11419 * @t: the type to return the size it uses on the stack
11421 * Returns: the number of bytes required to hold an instance of this
11422 * type on the native stack
11425 mono_type_native_stack_size (MonoType *t, guint32 *align)
11429 g_assert (t != NULL);
11435 *align = sizeof (gpointer);
11436 return sizeof (gpointer);
11440 case MONO_TYPE_BOOLEAN:
11441 case MONO_TYPE_CHAR:
11452 case MONO_TYPE_STRING:
11453 case MONO_TYPE_OBJECT:
11454 case MONO_TYPE_CLASS:
11455 case MONO_TYPE_SZARRAY:
11456 case MONO_TYPE_PTR:
11457 case MONO_TYPE_FNPTR:
11458 case MONO_TYPE_ARRAY:
11459 *align = sizeof (gpointer);
11460 return sizeof (gpointer);
11465 *align = MONO_ABI_ALIGNOF (double);
11469 *align = MONO_ABI_ALIGNOF (gint64);
11471 case MONO_TYPE_GENERICINST:
11472 if (!mono_type_generic_inst_is_valuetype (t)) {
11473 *align = sizeof (gpointer);
11474 return sizeof (gpointer);
11477 case MONO_TYPE_TYPEDBYREF:
11478 case MONO_TYPE_VALUETYPE: {
11480 MonoClass *klass = mono_class_from_mono_type (t);
11482 if (klass->enumtype)
11483 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11485 size = mono_class_native_size (klass, align);
11486 *align = *align + 3;
11496 g_error ("type 0x%02x unknown", t->type);
11502 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11503 gboolean as_field, gboolean unicode)
11505 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11508 switch (native_type) {
11509 case MONO_NATIVE_BOOLEAN:
11512 case MONO_NATIVE_I1:
11513 case MONO_NATIVE_U1:
11516 case MONO_NATIVE_I2:
11517 case MONO_NATIVE_U2:
11518 case MONO_NATIVE_VARIANTBOOL:
11521 case MONO_NATIVE_I4:
11522 case MONO_NATIVE_U4:
11523 case MONO_NATIVE_ERROR:
11526 case MONO_NATIVE_I8:
11527 case MONO_NATIVE_U8:
11528 *align = MONO_ABI_ALIGNOF (gint64);
11530 case MONO_NATIVE_R4:
11533 case MONO_NATIVE_R8:
11534 *align = MONO_ABI_ALIGNOF (double);
11536 case MONO_NATIVE_INT:
11537 case MONO_NATIVE_UINT:
11538 case MONO_NATIVE_LPSTR:
11539 case MONO_NATIVE_LPWSTR:
11540 case MONO_NATIVE_LPTSTR:
11541 case MONO_NATIVE_BSTR:
11542 case MONO_NATIVE_ANSIBSTR:
11543 case MONO_NATIVE_TBSTR:
11544 case MONO_NATIVE_UTF8STR:
11545 case MONO_NATIVE_LPARRAY:
11546 case MONO_NATIVE_SAFEARRAY:
11547 case MONO_NATIVE_IUNKNOWN:
11548 case MONO_NATIVE_IDISPATCH:
11549 case MONO_NATIVE_INTERFACE:
11550 case MONO_NATIVE_ASANY:
11551 case MONO_NATIVE_FUNC:
11552 case MONO_NATIVE_LPSTRUCT:
11553 *align = MONO_ABI_ALIGNOF (gpointer);
11554 return sizeof (gpointer);
11555 case MONO_NATIVE_STRUCT:
11556 klass = mono_class_from_mono_type (type);
11557 if (klass == mono_defaults.object_class &&
11558 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11562 return mono_class_native_size (klass, align);
11563 case MONO_NATIVE_BYVALTSTR: {
11564 int esize = unicode ? 2: 1;
11567 return mspec->data.array_data.num_elem * esize;
11569 case MONO_NATIVE_BYVALARRAY: {
11570 // FIXME: Have to consider ArraySubType
11572 klass = mono_class_from_mono_type (type);
11573 if (klass->element_class == mono_defaults.char_class) {
11574 esize = unicode ? 2 : 1;
11577 esize = mono_class_native_size (klass->element_class, align);
11580 return mspec->data.array_data.num_elem * esize;
11582 case MONO_NATIVE_CUSTOM:
11583 *align = sizeof (gpointer);
11584 return sizeof (gpointer);
11586 case MONO_NATIVE_CURRENCY:
11587 case MONO_NATIVE_VBBYREFSTR:
11589 g_error ("native type %02x not implemented", native_type);
11592 g_assert_not_reached ();
11596 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11598 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11607 t = &o->vtable->klass->byval_arg;
11611 case MONO_TYPE_PTR:
11614 case MONO_TYPE_BOOLEAN:
11617 case MONO_TYPE_CHAR:
11622 return mono_object_unbox (o);
11624 case MONO_TYPE_STRING:
11625 switch (string_encoding) {
11626 case MONO_NATIVE_LPWSTR:
11627 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11628 case MONO_NATIVE_LPSTR:
11629 case MONO_NATIVE_UTF8STR:
11630 // Same code path, because in Mono, we treated strings as Utf8
11631 return mono_string_to_utf8str ((MonoString*)o);
11633 g_warning ("marshaling conversion %d not implemented", string_encoding);
11634 g_assert_not_reached ();
11637 case MONO_TYPE_CLASS:
11638 case MONO_TYPE_VALUETYPE: {
11639 MonoMethod *method;
11642 MonoBoolean delete_old = FALSE;
11644 klass = t->data.klass;
11646 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11649 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11650 klass->blittable || klass->enumtype))
11651 return mono_object_unbox (o);
11653 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11654 if (!mono_error_ok (&error)) {
11655 mono_error_set_pending_exception (&error);
11659 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11660 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11664 pa [2] = &delete_old;
11666 mono_runtime_invoke_checked (method, NULL, pa, &error);
11667 if (!mono_error_ok (&error)) {
11668 mono_error_set_pending_exception (&error);
11678 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11682 /* This is a JIT icall, it sets the pending exception */
11684 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11693 t = &o->vtable->klass->byval_arg;
11695 case MONO_TYPE_STRING:
11696 switch (string_encoding) {
11697 case MONO_NATIVE_LPWSTR:
11698 case MONO_NATIVE_LPSTR:
11699 case MONO_NATIVE_UTF8STR:
11700 mono_marshal_free (ptr);
11703 g_warning ("marshaling conversion %d not implemented", string_encoding);
11704 g_assert_not_reached ();
11707 case MONO_TYPE_CLASS:
11708 case MONO_TYPE_VALUETYPE: {
11709 klass = t->data.klass;
11711 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11712 klass->blittable || klass->enumtype))
11715 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11716 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11722 mono_runtime_invoke_checked (method, NULL, pa, &error);
11723 if (!mono_error_ok (&error)) {
11724 mono_error_set_pending_exception (&error);
11729 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11730 mono_struct_delete_old (klass, (char *)ptr);
11733 mono_marshal_free (ptr);
11742 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11744 MonoMethodSignature *sig, *csig;
11745 MonoMethodBuilder *mb;
11750 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11751 mb->method->slot = -1;
11753 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11754 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11756 sig = mono_method_signature (method);
11757 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11758 csig->generic_param_count = 0;
11760 #ifndef DISABLE_JIT
11761 mono_mb_emit_ldarg (mb, 0);
11762 for (i = 0; i < csig->param_count; i++)
11763 mono_mb_emit_ldarg (mb, i + 1);
11764 mono_mb_emit_managed_call (mb, method, NULL);
11765 mono_mb_emit_byte (mb, CEE_RET);
11767 /* We can corlib internal methods */
11768 mb->skip_visibility = TRUE;
11770 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11771 info->d.generic_array_helper.method = method;
11772 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11780 * The mono_win32_compat_* functions are implementations of inline
11781 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11782 * although not exported by kernel32.
11784 * We map the appropiate kernel32 entries to these functions using
11785 * dllmaps declared in the global etc/mono/config.
11789 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11791 if (!dest || !source)
11794 memcpy (dest, source, length);
11798 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11800 memset (dest, fill, length);
11804 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11806 if (!dest || !source)
11809 memmove (dest, source, length);
11813 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11815 memset (dest, 0, length);
11819 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11824 for (i = 0; i < len; ++i)
11828 g_assert (i < len);
11831 while (byte && !(byte & 1))
11833 g_assert (byte == 1);
11836 *bitmask = buf [i];
11840 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11842 MonoMethodBuilder *mb;
11843 MonoMethodSignature *sig, *csig;
11844 MonoExceptionClause *clause;
11849 int i, param_count, sig_size, pos_leave;
11853 // FIXME: we need to store the exception into a MonoHandle
11854 g_assert (!mono_threads_is_coop_enabled ());
11856 klass = method->klass;
11857 image = method->klass->image;
11859 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11861 if ((res = mono_marshal_find_in_cache (cache, method)))
11864 sig = mono_method_signature (method);
11865 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11867 /* add "this" and exception param */
11868 param_count = sig->param_count + sig->hasthis + 1;
11870 /* dup & extend signature */
11871 csig = mono_metadata_signature_alloc (image, param_count);
11872 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11873 memcpy (csig, sig, sig_size);
11874 csig->param_count = param_count;
11877 csig->call_convention = MONO_CALL_DEFAULT;
11879 if (sig->hasthis) {
11881 csig->params [0] = &klass->byval_arg;
11882 /* move params up by one */
11883 for (i = 0; i < sig->param_count; i++)
11884 csig->params [i + 1] = sig->params [i];
11887 /* setup exception param as byref+[out] */
11888 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11889 &mono_defaults.exception_class->byval_arg);
11890 csig->params [param_count - 1]->byref = 1;
11891 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11893 /* convert struct return to object */
11894 if (MONO_TYPE_ISSTRUCT (sig->ret))
11895 csig->ret = &mono_defaults.object_class->byval_arg;
11897 #ifndef DISABLE_JIT
11898 /* local 0 (temp for exception object) */
11899 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11901 /* local 1 (temp for result) */
11902 if (!MONO_TYPE_IS_VOID (sig->ret))
11903 mono_mb_add_local (mb, sig->ret);
11905 /* clear exception arg */
11906 mono_mb_emit_ldarg (mb, param_count - 1);
11907 mono_mb_emit_byte (mb, CEE_LDNULL);
11908 mono_mb_emit_byte (mb, CEE_STIND_REF);
11911 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11912 clause->try_offset = mono_mb_get_label (mb);
11914 /* push method's args */
11915 for (i = 0; i < param_count - 1; i++) {
11919 mono_mb_emit_ldarg (mb, i);
11921 /* get the byval type of the param */
11922 klass = mono_class_from_mono_type (csig->params [i]);
11923 type = &klass->byval_arg;
11925 /* unbox struct args */
11926 if (MONO_TYPE_ISSTRUCT (type)) {
11927 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11929 /* byref args & and the "this" arg must remain a ptr.
11930 Otherwise make a copy of the value type */
11931 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11932 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11934 csig->params [i] = &mono_defaults.object_class->byval_arg;
11939 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11940 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11942 mono_mb_emit_op (mb, CEE_CALL, method);
11944 /* save result at local 1 */
11945 if (!MONO_TYPE_IS_VOID (sig->ret))
11946 mono_mb_emit_stloc (mb, 1);
11948 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11951 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11952 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11953 clause->data.catch_class = mono_defaults.object_class;
11955 clause->handler_offset = mono_mb_get_label (mb);
11957 /* store exception at local 0 */
11958 mono_mb_emit_stloc (mb, 0);
11959 mono_mb_emit_ldarg (mb, param_count - 1);
11960 mono_mb_emit_ldloc (mb, 0);
11961 mono_mb_emit_byte (mb, CEE_STIND_REF);
11962 mono_mb_emit_branch (mb, CEE_LEAVE);
11964 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11966 mono_mb_set_clauses (mb, 1, clause);
11968 mono_mb_patch_branch (mb, pos_leave);
11971 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11972 mono_mb_emit_ldloc (mb, 1);
11974 /* box the return value */
11975 if (MONO_TYPE_ISSTRUCT (sig->ret))
11976 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11979 mono_mb_emit_byte (mb, CEE_RET);
11982 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11989 * mono_marshal_free_dynamic_wrappers:
11991 * Free wrappers of the dynamic method METHOD.
11994 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11996 MonoImage *image = method->klass->image;
11998 g_assert (method_is_dynamic (method));
12000 /* This could be called during shutdown */
12001 if (marshal_mutex_initialized)
12002 mono_marshal_lock ();
12004 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12005 * they could be shared with other methods ?
12007 if (image->wrapper_caches.runtime_invoke_direct_cache)
12008 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
12009 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12010 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12011 // FIXME: Need to clear the caches in other images as well
12012 if (image->delegate_bound_static_invoke_cache)
12013 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12015 if (marshal_mutex_initialized)
12016 mono_marshal_unlock ();
12020 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12022 g_assert (ftnptr_eh_callback);
12023 ftnptr_eh_callback (gchandle);
12027 ftnptr_eh_callback_default (guint32 gchandle)
12029 MonoException *exc;
12030 gpointer stackdata;
12032 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12034 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12036 mono_gchandle_free (gchandle);
12038 mono_raise_exception (exc);
12042 * mono_install_ftnptr_eh_callback:
12044 * Install a callback that should be called when there is a managed exception
12045 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12046 * managed exception to a native exception, to properly unwind the native
12047 * stack; this native exception will then be converted back to a managed
12048 * exception in their managed-to-native wrapper.
12051 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12053 ftnptr_eh_callback = callback;
12056 static MonoThreadInfo*
12057 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12059 MonoThreadInfo *info = mono_thread_info_current ();
12061 mono_stack_mark_init (info, stackmark);
12062 mono_error_init (error);
12067 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12069 mono_stack_mark_pop (info, stackmark);
12070 mono_error_set_pending_exception (error);