2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #include "metadata/marshal.h"
23 #include "metadata/marshal-internals.h"
24 #include "metadata/method-builder.h"
25 #include "metadata/tabledefs.h"
26 #include "metadata/exception.h"
27 #include "metadata/appdomain.h"
28 #include "mono/metadata/abi-details.h"
29 #include "mono/metadata/debug-helpers.h"
30 #include "mono/metadata/threads.h"
31 #include "mono/metadata/monitor.h"
32 #include "mono/metadata/class-internals.h"
33 #include "mono/metadata/metadata-internals.h"
34 #include "mono/metadata/domain-internals.h"
35 #include "mono/metadata/gc-internals.h"
36 #include "mono/metadata/threads-types.h"
37 #include "mono/metadata/string-icalls.h"
38 #include "mono/metadata/attrdefs.h"
39 #include "mono/metadata/gc-internals.h"
40 #include "mono/metadata/cominterop.h"
41 #include "mono/metadata/remoting.h"
42 #include "mono/metadata/reflection-internals.h"
43 #include "mono/metadata/threadpool-ms.h"
44 #include "mono/metadata/handle.h"
45 #include "mono/utils/mono-counters.h"
46 #include "mono/utils/mono-tls.h"
47 #include "mono/utils/mono-memory-model.h"
48 #include "mono/utils/atomic.h"
49 #include <mono/utils/mono-threads.h>
50 #include <mono/utils/mono-threads-coop.h>
51 #include <mono/utils/mono-error-internals.h>
56 /* #define DEBUG_RUNTIME_CODE */
58 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
62 #include "mono/cil/opcode.def"
68 * This mutex protects the various marshalling related caches in MonoImage
69 * and a few other data structures static to this file.
71 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
72 * runtime locking latice. Which means it can take simple locks suck as the image lock.
74 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
75 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
76 static mono_mutex_t marshal_mutex;
77 static gboolean marshal_mutex_initialized;
79 static MonoNativeTlsKey last_error_tls_id;
81 static MonoNativeTlsKey load_type_info_tls_id;
83 static gboolean use_aot_wrappers;
85 static void ftnptr_eh_callback_default (guint32 gchandle);
87 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
90 delegate_hash_table_add (MonoDelegate *d);
93 delegate_hash_table_remove (MonoDelegate *d);
96 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
99 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, int offset_of_first_child_field, MonoMarshalNative string_encoding);
102 mono_struct_delete_old (MonoClass *klass, char *ptr);
105 mono_marshal_string_to_utf16 (MonoString *s);
108 mono_marshal_string_to_utf16_copy (MonoString *s);
111 mono_string_to_utf8str (MonoString *string_obj);
113 static MonoStringBuilder *
114 mono_string_utf8_to_builder2 (char *text);
116 static MonoStringBuilder *
117 mono_string_utf16_to_builder2 (gunichar2 *text);
120 mono_string_new_len_wrapper (const char *text, guint length);
123 mono_string_from_byvalstr (const char *data, int len);
126 mono_string_from_byvalwstr (gunichar2 *data, int len);
129 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
132 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
135 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
138 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
140 static MonoAsyncResult *
141 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
144 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
147 mono_marshal_set_last_error_windows (int error);
150 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
152 static void init_safe_handle (void);
155 ves_icall_marshal_alloc (gulong size);
158 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
161 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
164 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
167 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
170 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
173 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
176 mono_delegate_to_ftnptr (MonoDelegate *delegate);
179 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
182 mono_array_to_savearray (MonoArray *array);
185 mono_array_to_lparray (MonoArray *array);
188 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
191 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
194 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
197 mono_array_to_savearray (MonoArray *array);
200 mono_array_to_lparray (MonoArray *array);
203 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
206 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
208 static MonoThreadInfo*
209 mono_icall_start (HandleStackMark *stackmark, MonoError *error);
212 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error);
214 /* Lazy class loading functions */
215 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
216 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
217 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
218 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
220 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
221 static MonoMethod *sh_dangerous_add_ref;
222 static MonoMethod *sh_dangerous_release;
227 sh_dangerous_add_ref = mono_class_get_method_from_name (
228 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
229 sh_dangerous_release = mono_class_get_method_from_name (
230 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
234 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
236 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
238 mono_register_jit_icall (func, name, sig, no_wrapper);
242 mono_signature_no_pinvoke (MonoMethod *method)
244 MonoMethodSignature *sig = mono_method_signature (method);
246 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
247 sig->pinvoke = FALSE;
254 mono_marshal_init_tls (void)
256 mono_native_tls_alloc (&last_error_tls_id, NULL);
257 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
261 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
264 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
265 mono_error_set_pending_exception (&error);
270 ves_icall_mono_string_from_utf16 (gunichar2 *data)
273 MonoString *result = mono_string_from_utf16_checked (data, &error);
274 mono_error_set_pending_exception (&error);
279 ves_icall_mono_string_to_utf8 (MonoString *str)
282 char *result = mono_string_to_utf8_checked (str, &error);
283 mono_error_set_pending_exception (&error);
288 mono_marshal_init (void)
290 static gboolean module_initialized = FALSE;
292 if (!module_initialized) {
293 module_initialized = TRUE;
294 mono_os_mutex_init_recursive (&marshal_mutex);
295 marshal_mutex_initialized = TRUE;
297 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
298 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
299 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
300 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
301 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
302 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
303 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
304 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
305 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
306 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
307 register_icall (mono_string_to_utf8str, "mono_string_to_utf8str", "ptr obj", FALSE);
308 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
309 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
310 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
311 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
312 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
313 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
314 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
315 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
316 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
317 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
318 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
319 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
320 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
321 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
322 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
323 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
324 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
325 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
326 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
327 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
328 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
329 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
330 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
331 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
332 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
333 register_icall (g_free, "g_free", "void ptr", FALSE);
334 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
335 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
336 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
337 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
338 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
339 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
340 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
341 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
342 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
343 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
344 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
345 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
346 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
347 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
348 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
349 register_icall (mono_icall_start, "mono_icall_start", "ptr ptr ptr", TRUE);
350 register_icall (mono_icall_end, "mono_icall_end", "void ptr ptr ptr", TRUE);
351 register_icall (mono_handle_new, "mono_handle_new", "ptr ptr", TRUE);
353 mono_cominterop_init ();
354 mono_remoting_init ();
359 mono_marshal_cleanup (void)
361 mono_cominterop_cleanup ();
363 mono_native_tls_free (load_type_info_tls_id);
364 mono_native_tls_free (last_error_tls_id);
365 mono_os_mutex_destroy (&marshal_mutex);
366 marshal_mutex_initialized = FALSE;
370 mono_marshal_lock_internal (void)
372 mono_marshal_lock ();
376 mono_marshal_unlock_internal (void)
378 mono_marshal_unlock ();
381 /* This is a JIT icall, it sets the pending exception and return NULL on error */
383 mono_delegate_to_ftnptr (MonoDelegate *delegate)
386 MonoMethod *method, *wrapper;
388 uint32_t target_handle = 0;
393 if (delegate->delegate_trampoline)
394 return delegate->delegate_trampoline;
396 klass = ((MonoObject *)delegate)->vtable->klass;
397 g_assert (klass->delegate);
399 method = delegate->method;
400 if (delegate->method_is_virtual)
401 method = mono_object_get_virtual_method (delegate->target, method);
403 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
404 const char *exc_class, *exc_arg;
407 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
409 g_assert (exc_class);
410 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
416 if (delegate->target) {
417 /* Produce a location which can be embedded in JITted code */
418 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
421 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
423 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
427 // Add the delegate to the delegate hash table
428 delegate_hash_table_add (delegate);
430 /* when the object is collected, collect the dynamic method, too */
431 mono_object_register_finalizer ((MonoObject*)delegate);
433 return delegate->delegate_trampoline;
436 if (target_handle != 0)
437 mono_gchandle_free (target_handle);
438 mono_error_set_pending_exception (&error);
443 * this hash table maps from a delegate trampoline object to a weak reference
444 * of the delegate. As an optimizations with a non-moving GC we store the
445 * object pointer itself, otherwise we use a GC handle.
447 static GHashTable *delegate_hash_table;
450 delegate_hash_table_new (void) {
451 return g_hash_table_new (NULL, NULL);
455 delegate_hash_table_remove (MonoDelegate *d)
457 guint32 gchandle = 0;
459 mono_marshal_lock ();
460 if (delegate_hash_table == NULL)
461 delegate_hash_table = delegate_hash_table_new ();
462 if (mono_gc_is_moving ())
463 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
464 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
465 mono_marshal_unlock ();
466 if (gchandle && mono_gc_is_moving ())
467 mono_gchandle_free (gchandle);
471 delegate_hash_table_add (MonoDelegate *d)
474 guint32 old_gchandle;
476 mono_marshal_lock ();
477 if (delegate_hash_table == NULL)
478 delegate_hash_table = delegate_hash_table_new ();
479 if (mono_gc_is_moving ()) {
480 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
481 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
482 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
484 mono_gchandle_free (old_gchandle);
486 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
488 mono_marshal_unlock ();
492 * mono_marshal_use_aot_wrappers:
494 * Instructs this module to use AOT compatible wrappers.
497 mono_marshal_use_aot_wrappers (gboolean use)
499 use_aot_wrappers = use;
503 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
506 MonoCustomAttrInfo *cinfo;
507 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
509 /* The attribute is only available in Net 2.0 */
510 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
512 * The pinvoke attributes are stored in a real custom attribute so we have to
515 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
516 if (!mono_error_ok (&error)) {
517 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
518 mono_error_cleanup (&error);
520 if (cinfo && !mono_runtime_get_no_exec ()) {
521 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
523 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
525 if (!mono_error_ok (&error)) {
526 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
527 mono_error_cleanup (&error);
531 mono_custom_attrs_free (cinfo);
536 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
538 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
547 mono_marshal_lock ();
548 if (delegate_hash_table == NULL)
549 delegate_hash_table = delegate_hash_table_new ();
551 if (mono_gc_is_moving ()) {
552 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
553 mono_marshal_unlock ();
555 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
559 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
560 mono_marshal_unlock ();
563 /* This is a native function, so construct a delegate for it */
564 MonoMethodSignature *sig;
566 MonoMarshalSpec **mspecs;
567 MonoMethod *invoke = mono_get_delegate_invoke (klass);
568 MonoMethodPInvoke piinfo;
569 MonoObject *this_obj;
572 if (use_aot_wrappers) {
573 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
574 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
575 if (!is_ok (&error)) {
576 mono_error_set_pending_exception (&error);
580 memset (&piinfo, 0, sizeof (piinfo));
581 parse_unmanaged_function_pointer_attr (klass, &piinfo);
583 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
584 mono_method_get_marshal_info (invoke, mspecs);
585 /* Freed below so don't alloc from mempool */
586 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
589 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
592 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
594 mono_metadata_free_marshal_spec (mspecs [i]);
599 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
600 if (!mono_error_ok (&error)) {
601 mono_error_set_pending_exception (&error);
604 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
605 if (mono_error_set_pending_exception (&error))
607 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
608 if (mono_error_set_pending_exception (&error))
612 if (d->object.vtable->domain != mono_domain_get ()) {
613 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
621 mono_delegate_free_ftnptr (MonoDelegate *delegate)
626 delegate_hash_table_remove (delegate);
628 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
630 if (!delegate->target) {
631 /* The wrapper method is shared between delegates -> no need to free it */
640 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
643 method = mono_jit_info_get_method (ji);
644 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
646 /*the target gchandle is the first entry after size and the wrapper itself.*/
647 gchandle = GPOINTER_TO_UINT (method_data [2]);
650 mono_gchandle_free (gchandle);
652 mono_runtime_free_method (mono_object_domain (delegate), method);
656 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
658 mono_string_from_byvalstr (const char *data, int max_len)
661 MonoDomain *domain = mono_domain_get ();
667 while (len < max_len - 1 && data [len])
670 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
671 mono_error_set_pending_exception (&error);
675 /* This is a JIT icall, it sets the pending exception and return NULL on error */
677 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
680 MonoString *res = NULL;
681 MonoDomain *domain = mono_domain_get ();
687 while (data [len]) len++;
689 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
690 if (!mono_error_ok (&error)) {
691 mono_error_set_pending_exception (&error);
698 mono_array_to_savearray (MonoArray *array)
703 g_assert_not_reached ();
708 mono_array_to_lparray (MonoArray *array)
711 gpointer *nativeArray = NULL;
712 int nativeArraySize = 0;
722 klass = array->obj.vtable->klass;
724 switch (klass->element_class->byval_arg.type) {
726 g_assert_not_reached ();
728 case MONO_TYPE_CLASS:
729 nativeArraySize = array->max_length;
730 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
731 for(i = 0; i < nativeArraySize; ++i)
732 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
735 case MONO_TYPE_BOOLEAN:
748 case MONO_TYPE_VALUETYPE:
752 case MONO_TYPE_GENERICINST:
753 case MONO_TYPE_OBJECT:
754 case MONO_TYPE_ARRAY:
755 case MONO_TYPE_SZARRAY:
756 case MONO_TYPE_STRING:
758 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
759 g_assert_not_reached ();
762 return array->vector;
766 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
777 klass = array->obj.vtable->klass;
779 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
780 for(i = 0; i < array->max_length; ++i)
781 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
782 g_free (nativeArray);
788 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
790 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
792 if (elclass == mono_defaults.byte_class) {
793 GError *error = NULL;
797 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
800 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
804 g_error_free (error);
807 g_assert_not_reached ();
811 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
813 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
816 /* This is a JIT icall, it sets the pending exception and returns on error */
818 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
820 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
822 if (elclass == mono_defaults.byte_class) {
824 GError *error = NULL;
826 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
828 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
829 g_error_free (error);
833 memcpy (native_arr, as, MIN (strlen (as), elnum));
836 g_assert_not_reached ();
841 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
843 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
846 static MonoStringBuilder *
847 mono_string_builder_new (int starting_string_length)
849 static MonoClass *string_builder_class;
850 static MonoMethod *sb_ctor;
851 static void *args [1];
854 int initial_len = starting_string_length;
860 MonoMethodDesc *desc;
863 string_builder_class = mono_class_get_string_builder_class ();
864 g_assert (string_builder_class);
865 desc = mono_method_desc_new (":.ctor(int)", FALSE);
866 m = mono_method_desc_search_in_class (desc, string_builder_class);
868 mono_method_desc_free (desc);
869 mono_memory_barrier ();
873 // We make a new array in the _to_builder function, so this
874 // array will always be garbage collected.
875 args [0] = &initial_len;
877 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
878 mono_error_assert_ok (&error);
881 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
882 g_assert (exc == NULL);
883 mono_error_assert_ok (&error);
885 g_assert (sb->chunkChars->max_length >= initial_len);
891 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
893 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
894 gunichar2 *charSrc = (gunichar2 *)text;
895 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
897 sb->chunkLength = string_len;
903 mono_string_utf16_to_builder2 (gunichar2 *text)
909 for (len = 0; text [len] != 0; ++len);
911 MonoStringBuilder *sb = mono_string_builder_new (len);
912 mono_string_utf16_to_builder (sb, text);
918 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
923 GError *error = NULL;
925 gunichar2* ut = g_utf8_to_utf16 (text, strlen (text), NULL, &copied, &error);
926 int capacity = mono_string_builder_capacity (sb);
928 if (copied > capacity)
932 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
933 mono_string_utf16_to_builder_copy (sb, ut, copied);
935 g_error_free (error);
941 mono_string_utf8_to_builder2 (char *text)
946 int len = strlen (text);
947 MonoStringBuilder *sb = mono_string_builder_new (len);
948 mono_string_utf8_to_builder (sb, text);
954 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
960 for (len = 0; text [len] != 0; ++len);
962 if (len > mono_string_builder_capacity (sb))
963 len = mono_string_builder_capacity (sb);
965 mono_string_utf16_to_builder_copy (sb, text, len);
969 * mono_string_builder_to_utf8:
970 * @sb: the string builder
972 * Converts to utf8 the contents of the MonoStringBuilder.
974 * Returns: a utf8 string with the contents of the StringBuilder.
976 * The return value must be released with mono_marshal_free.
978 * This is a JIT icall, it sets the pending exception and returns NULL on error.
981 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
984 GError *gerror = NULL;
989 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
991 guint str_len = mono_string_builder_string_length (sb);
993 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
996 g_error_free (gerror);
997 mono_marshal_free (str_utf16);
998 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1001 guint len = mono_string_builder_capacity (sb) + 1;
1002 gchar *res = (gchar *)mono_marshal_alloc (MAX (byte_count+1, len * sizeof (gchar)), &error);
1003 if (!mono_error_ok (&error)) {
1004 mono_marshal_free (str_utf16);
1006 mono_error_set_pending_exception (&error);
1010 memcpy (res, tmp, byte_count);
1011 res[byte_count] = '\0';
1013 mono_marshal_free (str_utf16);
1020 * mono_string_builder_to_utf16:
1021 * @sb: the string builder
1023 * Converts to utf16 the contents of the MonoStringBuilder.
1025 * Returns: a utf16 string with the contents of the StringBuilder.
1027 * The return value must be released with mono_marshal_free.
1029 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1032 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1039 g_assert (sb->chunkChars);
1041 guint len = mono_string_builder_capacity (sb);
1046 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1047 if (!mono_error_ok (&error)) {
1048 mono_error_set_pending_exception (&error);
1057 MonoStringBuilder* chunk = sb;
1059 if (chunk->chunkLength > 0) {
1060 // Check that we will not overrun our boundaries.
1061 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1063 if (chunk->chunkLength <= len) {
1064 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1066 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1069 len -= chunk->chunkLength;
1071 chunk = chunk->chunkPrevious;
1072 } while (chunk != NULL);
1077 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1079 mono_string_to_utf8str (MonoString *s)
1082 char *result = mono_string_to_utf8_checked (s, &error);
1083 mono_error_set_pending_exception (&error);
1088 mono_string_to_ansibstr (MonoString *string_obj)
1090 g_error ("UnmanagedMarshal.BStr is not implemented.");
1095 * mono_string_to_byvalstr:
1096 * @dst: Where to store the null-terminated utf8 decoded string.
1097 * @src: the MonoString to copy.
1098 * @size: the maximum number of bytes to copy.
1100 * Copies the MonoString pointed to by @src as a utf8 string
1101 * into @dst, it copies at most @size bytes into the destination.
1104 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1110 g_assert (dst != NULL);
1111 g_assert (size > 0);
1113 memset (dst, 0, size);
1117 s = mono_string_to_utf8_checked (src, &error);
1118 if (mono_error_set_pending_exception (&error))
1120 len = MIN (size, strlen (s));
1123 memcpy (dst, s, len);
1128 * mono_string_to_byvalwstr:
1129 * @dst: Where to store the null-terminated utf16 decoded string.
1130 * @src: the MonoString to copy.
1131 * @size: the maximum number of bytes to copy.
1133 * Copies the MonoString pointed to by @src as a utf16 string into
1134 * @dst, it copies at most @size bytes into the destination (including
1135 * a terminating 16-bit zero terminator).
1138 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1142 g_assert (dst != NULL);
1143 g_assert (size > 1);
1146 memset (dst, 0, size * 2);
1150 len = MIN (size, (mono_string_length (src)));
1151 memcpy (dst, mono_string_chars (src), size * 2);
1152 if (size <= mono_string_length (src))
1154 *((gunichar2 *) dst + len) = 0;
1157 /* this is an icall, it sets the pending exception and returns NULL on error */
1159 mono_string_new_len_wrapper (const char *text, guint length)
1162 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1163 mono_error_set_pending_exception (&error);
1170 * mono_mb_emit_exception_marshal_directive:
1172 * This function assumes ownership of MSG, which should be malloc-ed.
1175 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1180 s = mono_image_strdup (mb->method->klass->image, msg);
1185 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1188 #endif /* !DISABLE_JIT */
1191 mono_type_to_ldind (MonoType *type)
1197 switch (type->type) {
1199 return CEE_LDIND_I1;
1201 case MONO_TYPE_BOOLEAN:
1202 return CEE_LDIND_U1;
1204 return CEE_LDIND_I2;
1206 case MONO_TYPE_CHAR:
1207 return CEE_LDIND_U2;
1209 return CEE_LDIND_I4;
1211 return CEE_LDIND_U4;
1215 case MONO_TYPE_FNPTR:
1217 case MONO_TYPE_CLASS:
1218 case MONO_TYPE_STRING:
1219 case MONO_TYPE_OBJECT:
1220 case MONO_TYPE_SZARRAY:
1221 case MONO_TYPE_ARRAY:
1222 return CEE_LDIND_REF;
1225 return CEE_LDIND_I8;
1227 return CEE_LDIND_R4;
1229 return CEE_LDIND_R8;
1230 case MONO_TYPE_VALUETYPE:
1231 if (type->data.klass->enumtype) {
1232 type = mono_class_enum_basetype (type->data.klass);
1236 case MONO_TYPE_TYPEDBYREF:
1238 case MONO_TYPE_GENERICINST:
1239 type = &type->data.generic_class->container_class->byval_arg;
1242 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1248 mono_type_to_stind (MonoType *type)
1251 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1255 switch (type->type) {
1258 case MONO_TYPE_BOOLEAN:
1259 return CEE_STIND_I1;
1262 case MONO_TYPE_CHAR:
1263 return CEE_STIND_I2;
1266 return CEE_STIND_I4;
1270 case MONO_TYPE_FNPTR:
1272 case MONO_TYPE_CLASS:
1273 case MONO_TYPE_STRING:
1274 case MONO_TYPE_OBJECT:
1275 case MONO_TYPE_SZARRAY:
1276 case MONO_TYPE_ARRAY:
1277 return CEE_STIND_REF;
1280 return CEE_STIND_I8;
1282 return CEE_STIND_R4;
1284 return CEE_STIND_R8;
1285 case MONO_TYPE_VALUETYPE:
1286 if (type->data.klass->enumtype) {
1287 type = mono_class_enum_basetype (type->data.klass);
1291 case MONO_TYPE_TYPEDBYREF:
1293 case MONO_TYPE_GENERICINST:
1294 type = &type->data.generic_class->container_class->byval_arg;
1297 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1305 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1308 case MONO_MARSHAL_CONV_BOOL_I4:
1309 mono_mb_emit_ldloc (mb, 1);
1310 mono_mb_emit_ldloc (mb, 0);
1311 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1312 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1313 mono_mb_emit_byte (mb, 3);
1314 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1315 mono_mb_emit_byte (mb, CEE_BR_S);
1316 mono_mb_emit_byte (mb, 1);
1317 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1318 mono_mb_emit_byte (mb, CEE_STIND_I1);
1320 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1321 mono_mb_emit_ldloc (mb, 1);
1322 mono_mb_emit_ldloc (mb, 0);
1323 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1324 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1325 mono_mb_emit_byte (mb, 3);
1326 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1327 mono_mb_emit_byte (mb, CEE_BR_S);
1328 mono_mb_emit_byte (mb, 1);
1329 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1330 mono_mb_emit_byte (mb, CEE_STIND_I1);
1332 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1333 MonoClass *eklass = NULL;
1336 if (type->type == MONO_TYPE_SZARRAY) {
1337 eklass = type->data.klass;
1339 g_assert_not_reached ();
1342 esize = mono_class_native_size (eklass, NULL);
1344 /* create a new array */
1345 mono_mb_emit_ldloc (mb, 1);
1346 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1347 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1348 mono_mb_emit_byte (mb, CEE_STIND_REF);
1350 if (eklass->blittable) {
1351 /* copy the elements */
1352 mono_mb_emit_ldloc (mb, 1);
1353 mono_mb_emit_byte (mb, CEE_LDIND_I);
1354 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1355 mono_mb_emit_byte (mb, CEE_ADD);
1356 mono_mb_emit_ldloc (mb, 0);
1357 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1358 mono_mb_emit_byte (mb, CEE_PREFIX1);
1359 mono_mb_emit_byte (mb, CEE_CPBLK);
1362 int array_var, src_var, dst_var, index_var;
1363 guint32 label2, label3;
1365 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1366 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1367 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1370 mono_mb_emit_ldloc (mb, 1);
1371 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1372 mono_mb_emit_stloc (mb, array_var);
1374 /* save the old src pointer */
1375 mono_mb_emit_ldloc (mb, 0);
1376 mono_mb_emit_stloc (mb, src_var);
1377 /* save the old dst pointer */
1378 mono_mb_emit_ldloc (mb, 1);
1379 mono_mb_emit_stloc (mb, dst_var);
1381 /* Emit marshalling loop */
1382 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1383 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1384 mono_mb_emit_stloc (mb, index_var);
1387 label2 = mono_mb_get_label (mb);
1388 mono_mb_emit_ldloc (mb, index_var);
1389 mono_mb_emit_ldloc (mb, array_var);
1390 mono_mb_emit_byte (mb, CEE_LDLEN);
1391 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1393 /* src is already set */
1396 mono_mb_emit_ldloc (mb, array_var);
1397 mono_mb_emit_ldloc (mb, index_var);
1398 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1399 mono_mb_emit_stloc (mb, 1);
1401 /* Do the conversion */
1402 emit_struct_conv (mb, eklass, TRUE);
1405 mono_mb_emit_add_to_local (mb, index_var, 1);
1407 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1409 mono_mb_patch_branch (mb, label3);
1411 /* restore the old src pointer */
1412 mono_mb_emit_ldloc (mb, src_var);
1413 mono_mb_emit_stloc (mb, 0);
1414 /* restore the old dst pointer */
1415 mono_mb_emit_ldloc (mb, dst_var);
1416 mono_mb_emit_stloc (mb, 1);
1420 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1421 MonoClass *eclass = mono_defaults.char_class;
1423 /* create a new array */
1424 mono_mb_emit_ldloc (mb, 1);
1425 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1426 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1427 mono_mb_emit_byte (mb, CEE_STIND_REF);
1429 mono_mb_emit_ldloc (mb, 1);
1430 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1431 mono_mb_emit_ldloc (mb, 0);
1432 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1433 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1436 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1437 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1438 mono_mb_emit_ldloc (mb, 1);
1439 mono_mb_emit_ldloc (mb, 0);
1440 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1441 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1443 mono_mb_emit_ldloc (mb, 1);
1444 mono_mb_emit_ldloc (mb, 0);
1445 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1447 mono_mb_emit_byte (mb, CEE_STIND_REF);
1449 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1450 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1451 mono_mb_emit_ldloc (mb, 1);
1452 mono_mb_emit_ldloc (mb, 0);
1453 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1454 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1456 mono_mb_emit_ldloc (mb, 1);
1457 mono_mb_emit_ldloc (mb, 0);
1458 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1460 mono_mb_emit_byte (mb, CEE_STIND_REF);
1462 case MONO_MARSHAL_CONV_STR_LPTSTR:
1463 mono_mb_emit_ldloc (mb, 1);
1464 mono_mb_emit_ldloc (mb, 0);
1465 mono_mb_emit_byte (mb, CEE_LDIND_I);
1467 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1469 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1471 mono_mb_emit_byte (mb, CEE_STIND_REF);
1474 // In Mono historically LPSTR was treated as a UTF8STR
1475 case MONO_MARSHAL_CONV_STR_LPSTR:
1476 case MONO_MARSHAL_CONV_STR_UTF8STR:
1477 mono_mb_emit_ldloc (mb, 1);
1478 mono_mb_emit_ldloc (mb, 0);
1479 mono_mb_emit_byte (mb, CEE_LDIND_I);
1480 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1481 mono_mb_emit_byte (mb, CEE_STIND_REF);
1483 case MONO_MARSHAL_CONV_STR_LPWSTR:
1484 mono_mb_emit_ldloc (mb, 1);
1485 mono_mb_emit_ldloc (mb, 0);
1486 mono_mb_emit_byte (mb, CEE_LDIND_I);
1487 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1488 mono_mb_emit_byte (mb, CEE_STIND_REF);
1490 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1491 MonoClass *klass = mono_class_from_mono_type (type);
1492 int src_var, dst_var;
1494 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1495 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1497 /* *dst = new object */
1498 mono_mb_emit_ldloc (mb, 1);
1499 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1500 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1501 mono_mb_emit_byte (mb, CEE_STIND_REF);
1503 /* save the old src pointer */
1504 mono_mb_emit_ldloc (mb, 0);
1505 mono_mb_emit_stloc (mb, src_var);
1506 /* save the old dst pointer */
1507 mono_mb_emit_ldloc (mb, 1);
1508 mono_mb_emit_stloc (mb, dst_var);
1510 /* dst = pointer to newly created object data */
1511 mono_mb_emit_ldloc (mb, 1);
1512 mono_mb_emit_byte (mb, CEE_LDIND_I);
1513 mono_mb_emit_icon (mb, sizeof (MonoObject));
1514 mono_mb_emit_byte (mb, CEE_ADD);
1515 mono_mb_emit_stloc (mb, 1);
1517 emit_struct_conv (mb, klass, TRUE);
1519 /* restore the old src pointer */
1520 mono_mb_emit_ldloc (mb, src_var);
1521 mono_mb_emit_stloc (mb, 0);
1522 /* restore the old dst pointer */
1523 mono_mb_emit_ldloc (mb, dst_var);
1524 mono_mb_emit_stloc (mb, 1);
1527 case MONO_MARSHAL_CONV_DEL_FTN: {
1528 MonoClass *klass = mono_class_from_mono_type (type);
1530 mono_mb_emit_ldloc (mb, 1);
1531 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1532 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1533 mono_mb_emit_ldloc (mb, 0);
1534 mono_mb_emit_byte (mb, CEE_LDIND_I);
1535 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1536 mono_mb_emit_byte (mb, CEE_STIND_REF);
1539 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1540 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1544 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1545 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1546 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1547 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1549 #endif /* DISABLE_COM */
1551 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1553 * Passing SafeHandles as ref does not allow the unmanaged code
1554 * to change the SafeHandle value. If the value is changed,
1555 * we should issue a diagnostic exception (NotSupportedException)
1556 * that informs the user that changes to handles in unmanaged code
1559 * Since we currently have no access to the original
1560 * SafeHandle that was used during the marshalling,
1561 * for now we just ignore this, and ignore/discard any
1562 * changes that might have happened to the handle.
1567 case MONO_MARSHAL_CONV_HANDLEREF: {
1569 * Passing HandleRefs in a struct that is ref()ed does not
1570 * copy the values back to the HandleRef
1575 case MONO_MARSHAL_CONV_STR_BSTR:
1576 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1577 case MONO_MARSHAL_CONV_STR_TBSTR:
1578 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1580 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1582 mono_mb_emit_exception_marshal_directive (mb, msg);
1589 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1592 if (!ind_store_type)
1593 ind_store_type = &dummy;
1594 *ind_store_type = CEE_STIND_I;
1596 case MONO_MARSHAL_CONV_STR_LPWSTR:
1597 return mono_marshal_string_to_utf16;
1598 case MONO_MARSHAL_CONV_LPWSTR_STR:
1599 *ind_store_type = CEE_STIND_REF;
1600 return ves_icall_mono_string_from_utf16;
1601 case MONO_MARSHAL_CONV_LPTSTR_STR:
1602 *ind_store_type = CEE_STIND_REF;
1603 return mono_string_new_wrapper;
1604 case MONO_MARSHAL_CONV_UTF8STR_STR:
1605 case MONO_MARSHAL_CONV_LPSTR_STR:
1606 *ind_store_type = CEE_STIND_REF;
1607 return mono_string_new_wrapper;
1608 case MONO_MARSHAL_CONV_STR_LPTSTR:
1610 return mono_marshal_string_to_utf16;
1612 return mono_string_to_utf8str;
1614 // In Mono historically LPSTR was treated as a UTF8STR
1615 case MONO_MARSHAL_CONV_STR_UTF8STR:
1616 case MONO_MARSHAL_CONV_STR_LPSTR:
1617 return mono_string_to_utf8str;
1618 case MONO_MARSHAL_CONV_STR_BSTR:
1619 return mono_string_to_bstr;
1620 case MONO_MARSHAL_CONV_BSTR_STR:
1621 *ind_store_type = CEE_STIND_REF;
1622 return mono_string_from_bstr_icall;
1623 case MONO_MARSHAL_CONV_STR_TBSTR:
1624 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1625 return mono_string_to_ansibstr;
1626 case MONO_MARSHAL_CONV_SB_UTF8STR:
1627 case MONO_MARSHAL_CONV_SB_LPSTR:
1628 return mono_string_builder_to_utf8;
1629 case MONO_MARSHAL_CONV_SB_LPTSTR:
1631 return mono_string_builder_to_utf16;
1633 return mono_string_builder_to_utf8;
1635 case MONO_MARSHAL_CONV_SB_LPWSTR:
1636 return mono_string_builder_to_utf16;
1637 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1638 return mono_array_to_savearray;
1639 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1640 return mono_array_to_lparray;
1641 case MONO_MARSHAL_FREE_LPARRAY:
1642 return mono_free_lparray;
1643 case MONO_MARSHAL_CONV_DEL_FTN:
1644 return mono_delegate_to_ftnptr;
1645 case MONO_MARSHAL_CONV_FTN_DEL:
1646 *ind_store_type = CEE_STIND_REF;
1647 return mono_ftnptr_to_delegate;
1648 case MONO_MARSHAL_CONV_UTF8STR_SB:
1649 case MONO_MARSHAL_CONV_LPSTR_SB:
1650 *ind_store_type = CEE_STIND_REF;
1651 return mono_string_utf8_to_builder;
1652 case MONO_MARSHAL_CONV_LPTSTR_SB:
1653 *ind_store_type = CEE_STIND_REF;
1655 return mono_string_utf16_to_builder;
1657 return mono_string_utf8_to_builder;
1659 case MONO_MARSHAL_CONV_LPWSTR_SB:
1660 *ind_store_type = CEE_STIND_REF;
1661 return mono_string_utf16_to_builder;
1662 case MONO_MARSHAL_FREE_ARRAY:
1663 return mono_marshal_free_array;
1664 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1665 return mono_string_to_byvalstr;
1666 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1667 return mono_string_to_byvalwstr;
1669 g_assert_not_reached ();
1676 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1682 case MONO_MARSHAL_CONV_BOOL_I4:
1683 mono_mb_emit_ldloc (mb, 1);
1684 mono_mb_emit_ldloc (mb, 0);
1685 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1686 mono_mb_emit_byte (mb, CEE_STIND_I4);
1688 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1689 mono_mb_emit_ldloc (mb, 1);
1690 mono_mb_emit_ldloc (mb, 0);
1691 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1692 mono_mb_emit_byte (mb, CEE_NEG);
1693 mono_mb_emit_byte (mb, CEE_STIND_I2);
1695 // In Mono historically LPSTR was treated as a UTF8STR
1696 case MONO_MARSHAL_CONV_STR_UTF8STR:
1697 case MONO_MARSHAL_CONV_STR_LPWSTR:
1698 case MONO_MARSHAL_CONV_STR_LPSTR:
1699 case MONO_MARSHAL_CONV_STR_LPTSTR:
1700 case MONO_MARSHAL_CONV_STR_BSTR:
1701 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1702 case MONO_MARSHAL_CONV_STR_TBSTR: {
1705 /* free space if free == true */
1706 mono_mb_emit_ldloc (mb, 2);
1707 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1708 mono_mb_emit_ldloc (mb, 1);
1709 mono_mb_emit_byte (mb, CEE_LDIND_I);
1710 mono_mb_emit_icall (mb, g_free);
1711 mono_mb_patch_short_branch (mb, pos);
1713 mono_mb_emit_ldloc (mb, 1);
1714 mono_mb_emit_ldloc (mb, 0);
1715 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1716 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1717 mono_mb_emit_byte (mb, stind_op);
1720 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1721 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1722 case MONO_MARSHAL_CONV_DEL_FTN:
1723 mono_mb_emit_ldloc (mb, 1);
1724 mono_mb_emit_ldloc (mb, 0);
1725 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1726 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1727 mono_mb_emit_byte (mb, stind_op);
1729 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1730 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1733 mono_mb_emit_ldloc (mb, 1); /* dst */
1734 mono_mb_emit_ldloc (mb, 0);
1735 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1736 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1737 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1740 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1741 MonoClass *eklass = NULL;
1744 if (type->type == MONO_TYPE_SZARRAY) {
1745 eklass = type->data.klass;
1747 g_assert_not_reached ();
1750 if (eklass->valuetype)
1751 esize = mono_class_native_size (eklass, NULL);
1753 esize = sizeof (gpointer);
1755 mono_mb_emit_ldloc (mb, 0);
1756 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1757 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1759 if (eklass->blittable) {
1760 mono_mb_emit_ldloc (mb, 1);
1761 mono_mb_emit_ldloc (mb, 0);
1762 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1763 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1764 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1765 mono_mb_emit_byte (mb, CEE_PREFIX1);
1766 mono_mb_emit_byte (mb, CEE_CPBLK);
1768 int array_var, src_var, dst_var, index_var;
1769 guint32 label2, label3;
1771 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1772 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1773 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1776 mono_mb_emit_ldloc (mb, 0);
1777 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1778 mono_mb_emit_stloc (mb, array_var);
1780 /* save the old src pointer */
1781 mono_mb_emit_ldloc (mb, 0);
1782 mono_mb_emit_stloc (mb, src_var);
1783 /* save the old dst pointer */
1784 mono_mb_emit_ldloc (mb, 1);
1785 mono_mb_emit_stloc (mb, dst_var);
1787 /* Emit marshalling loop */
1788 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1789 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1790 mono_mb_emit_stloc (mb, index_var);
1793 label2 = mono_mb_get_label (mb);
1794 mono_mb_emit_ldloc (mb, index_var);
1795 mono_mb_emit_ldloc (mb, array_var);
1796 mono_mb_emit_byte (mb, CEE_LDLEN);
1797 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1800 mono_mb_emit_ldloc (mb, array_var);
1801 mono_mb_emit_ldloc (mb, index_var);
1802 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1803 mono_mb_emit_stloc (mb, 0);
1805 /* dst is already set */
1807 /* Do the conversion */
1808 emit_struct_conv (mb, eklass, FALSE);
1811 mono_mb_emit_add_to_local (mb, index_var, 1);
1813 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1815 mono_mb_patch_branch (mb, label3);
1817 /* restore the old src pointer */
1818 mono_mb_emit_ldloc (mb, src_var);
1819 mono_mb_emit_stloc (mb, 0);
1820 /* restore the old dst pointer */
1821 mono_mb_emit_ldloc (mb, dst_var);
1822 mono_mb_emit_stloc (mb, 1);
1825 mono_mb_patch_branch (mb, pos);
1828 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1829 mono_mb_emit_ldloc (mb, 0);
1830 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1831 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1833 mono_mb_emit_ldloc (mb, 1);
1834 mono_mb_emit_ldloc (mb, 0);
1835 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1836 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1837 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1838 mono_mb_patch_short_branch (mb, pos);
1841 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1842 int src_var, dst_var;
1844 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1845 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1847 mono_mb_emit_ldloc (mb, 0);
1848 mono_mb_emit_byte (mb, CEE_LDIND_I);
1849 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1851 /* save the old src pointer */
1852 mono_mb_emit_ldloc (mb, 0);
1853 mono_mb_emit_stloc (mb, src_var);
1854 /* save the old dst pointer */
1855 mono_mb_emit_ldloc (mb, 1);
1856 mono_mb_emit_stloc (mb, dst_var);
1858 /* src = pointer to object data */
1859 mono_mb_emit_ldloc (mb, 0);
1860 mono_mb_emit_byte (mb, CEE_LDIND_I);
1861 mono_mb_emit_icon (mb, sizeof (MonoObject));
1862 mono_mb_emit_byte (mb, CEE_ADD);
1863 mono_mb_emit_stloc (mb, 0);
1865 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1867 /* restore the old src pointer */
1868 mono_mb_emit_ldloc (mb, src_var);
1869 mono_mb_emit_stloc (mb, 0);
1870 /* restore the old dst pointer */
1871 mono_mb_emit_ldloc (mb, dst_var);
1872 mono_mb_emit_stloc (mb, 1);
1874 mono_mb_patch_branch (mb, pos);
1879 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1880 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1881 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1882 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1884 #endif /* DISABLE_COM */
1886 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1889 mono_mb_emit_ldloc (mb, 0);
1890 mono_mb_emit_byte (mb, CEE_LDIND_I);
1891 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1892 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1893 mono_mb_patch_branch (mb, pos);
1895 /* Pull the handle field from SafeHandle */
1896 mono_mb_emit_ldloc (mb, 1);
1897 mono_mb_emit_ldloc (mb, 0);
1898 mono_mb_emit_byte (mb, CEE_LDIND_I);
1899 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1900 mono_mb_emit_byte (mb, CEE_LDIND_I);
1901 mono_mb_emit_byte (mb, CEE_STIND_I);
1905 case MONO_MARSHAL_CONV_HANDLEREF: {
1906 mono_mb_emit_ldloc (mb, 1);
1907 mono_mb_emit_ldloc (mb, 0);
1908 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1909 mono_mb_emit_byte (mb, CEE_ADD);
1910 mono_mb_emit_byte (mb, CEE_LDIND_I);
1911 mono_mb_emit_byte (mb, CEE_STIND_I);
1916 g_error ("marshalling conversion %d not implemented", conv);
1921 static int offset_of_first_nonstatic_field(MonoClass *klass)
1924 for (i = 0; i < klass->field.count; i++) {
1925 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
1926 return klass->fields[i].offset - sizeof (MonoObject);
1933 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1934 int offset_of_first_child_field, MonoMarshalNative string_encoding)
1936 MonoMarshalType *info;
1940 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
1942 info = mono_marshal_load_type_info (klass);
1944 if (info->native_size == 0)
1947 if (klass->blittable) {
1948 int usize = mono_class_value_size (klass, NULL);
1949 g_assert (usize == info->native_size);
1950 mono_mb_emit_ldloc (mb, 1);
1951 mono_mb_emit_ldloc (mb, 0);
1952 mono_mb_emit_icon (mb, usize);
1953 mono_mb_emit_byte (mb, CEE_PREFIX1);
1954 mono_mb_emit_byte (mb, CEE_CPBLK);
1957 mono_mb_emit_add_to_local (mb, 0, usize);
1958 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
1960 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
1961 mono_mb_emit_add_to_local (mb, 1, usize);
1966 if (klass != mono_class_try_get_safehandle_class ()) {
1967 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1968 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1969 mono_type_full_name (&klass->byval_arg));
1970 mono_mb_emit_exception_marshal_directive (mb, msg);
1975 for (i = 0; i < info->num_fields; i++) {
1976 MonoMarshalNative ntype;
1977 MonoMarshalConv conv;
1978 MonoType *ftype = info->fields [i].field->type;
1981 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1983 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1986 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1989 msize = klass->instance_size - info->fields [i].field->offset;
1990 usize = info->native_size - info->fields [i].offset;
1992 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1993 usize = info->fields [i + 1].offset - info->fields [i].offset;
1996 if (klass != mono_class_try_get_safehandle_class ()){
1998 * FIXME: Should really check for usize==0 and msize>0, but we apply
1999 * the layout to the managed structure as well.
2002 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2003 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2004 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2005 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2006 "reference field at the same offset as another field.",
2007 mono_type_full_name (&klass->byval_arg));
2012 case MONO_MARSHAL_CONV_NONE: {
2015 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2016 g_assert (!ftype->byref);
2017 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2018 mono_mb_emit_ldloc (mb, 1);
2019 mono_mb_emit_ldloc (mb, 0);
2020 mono_mb_emit_byte (mb, CEE_LDIND_I);
2021 mono_mb_emit_byte (mb, CEE_STIND_I);
2032 case MONO_TYPE_BOOLEAN:
2035 case MONO_TYPE_CHAR:
2041 mono_mb_emit_ldloc (mb, 1);
2042 mono_mb_emit_ldloc (mb, 0);
2043 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2045 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2046 mono_mb_emit_byte (mb, CEE_STIND_I2);
2048 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2049 mono_mb_emit_byte (mb, CEE_STIND_I1);
2052 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2053 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2056 case MONO_TYPE_VALUETYPE: {
2057 int src_var, dst_var;
2059 if (ftype->data.klass->enumtype) {
2060 ftype = mono_class_enum_basetype (ftype->data.klass);
2064 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2065 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2067 /* save the old src pointer */
2068 mono_mb_emit_ldloc (mb, 0);
2069 mono_mb_emit_stloc (mb, src_var);
2070 /* save the old dst pointer */
2071 mono_mb_emit_ldloc (mb, 1);
2072 mono_mb_emit_stloc (mb, dst_var);
2074 emit_struct_conv (mb, ftype->data.klass, to_object);
2076 /* restore the old src pointer */
2077 mono_mb_emit_ldloc (mb, src_var);
2078 mono_mb_emit_stloc (mb, 0);
2079 /* restore the old dst pointer */
2080 mono_mb_emit_ldloc (mb, dst_var);
2081 mono_mb_emit_stloc (mb, 1);
2084 case MONO_TYPE_OBJECT: {
2087 static MonoMethod *variant_clear = NULL;
2088 static MonoMethod *get_object_for_native_variant = NULL;
2091 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2092 if (!get_object_for_native_variant)
2093 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2094 mono_mb_emit_ldloc (mb, 1);
2095 mono_mb_emit_ldloc (mb, 0);
2096 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2097 mono_mb_emit_byte (mb, CEE_STIND_REF);
2099 mono_mb_emit_ldloc (mb, 0);
2100 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2103 static MonoMethod *get_native_variant_for_object = NULL;
2105 if (!get_native_variant_for_object)
2106 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2108 mono_mb_emit_ldloc (mb, 0);
2109 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2110 mono_mb_emit_ldloc (mb, 1);
2111 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2114 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2115 mono_mb_emit_exception_marshal_directive (mb, msg);
2121 g_warning ("marshaling type %02x not implemented", ftype->type);
2122 g_assert_not_reached ();
2127 int src_var, dst_var;
2129 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2130 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2132 /* save the old src pointer */
2133 mono_mb_emit_ldloc (mb, 0);
2134 mono_mb_emit_stloc (mb, src_var);
2135 /* save the old dst pointer */
2136 mono_mb_emit_ldloc (mb, 1);
2137 mono_mb_emit_stloc (mb, dst_var);
2140 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2142 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2144 /* restore the old src pointer */
2145 mono_mb_emit_ldloc (mb, src_var);
2146 mono_mb_emit_stloc (mb, 0);
2147 /* restore the old dst pointer */
2148 mono_mb_emit_ldloc (mb, dst_var);
2149 mono_mb_emit_stloc (mb, 1);
2154 mono_mb_emit_add_to_local (mb, 0, usize);
2155 mono_mb_emit_add_to_local (mb, 1, msize);
2157 mono_mb_emit_add_to_local (mb, 0, msize);
2158 mono_mb_emit_add_to_local (mb, 1, usize);
2164 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2166 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2170 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2172 /* Call DestroyStructure */
2173 /* FIXME: Only do this if needed */
2174 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2175 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2176 mono_mb_emit_ldloc (mb, struct_var);
2177 mono_mb_emit_icall (mb, mono_struct_delete_old);
2181 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2183 int pos_noabort, pos_noex;
2185 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2186 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2187 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2188 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2190 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2191 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2193 mono_mb_emit_icall (mb, checkpoint_func);
2194 /* Throw the exception returned by the checkpoint function, if any */
2195 mono_mb_emit_byte (mb, CEE_DUP);
2196 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2197 mono_mb_emit_byte (mb, CEE_THROW);
2198 mono_mb_patch_branch (mb, pos_noex);
2199 mono_mb_emit_byte (mb, CEE_POP);
2201 mono_mb_patch_branch (mb, pos_noabort);
2205 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2207 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2210 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2214 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2216 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2220 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2222 emit_thread_interrupt_checkpoint (mb);
2226 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2228 emit_thread_force_interrupt_checkpoint (mb);
2231 #endif /* DISABLE_JIT */
2233 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2234 static MonoAsyncResult *
2235 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2238 MonoMulticastDelegate *mcast_delegate;
2242 g_assert (delegate);
2243 mcast_delegate = (MonoMulticastDelegate *) delegate;
2244 if (mcast_delegate->delegates != NULL) {
2245 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2249 #ifndef DISABLE_REMOTING
2250 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2251 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2252 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2253 /* If the target is a proxy, make a direct call. Is proxy's work
2254 // to make the call asynchronous.
2256 MonoMethodMessage *msg;
2257 MonoDelegate *async_callback;
2259 MonoAsyncResult *ares;
2261 MonoArray *out_args;
2262 method = delegate->method;
2264 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2265 if (mono_error_set_pending_exception (&error))
2267 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2268 if (mono_error_set_pending_exception (&error))
2270 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2271 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2272 MONO_OBJECT_SETREF (msg, async_result, ares);
2273 msg->call_type = CallType_BeginInvoke;
2276 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2277 if (!mono_error_ok (&error)) {
2278 mono_error_set_pending_exception (&error);
2282 mono_set_pending_exception ((MonoException *) exc);
2288 klass = delegate->object.vtable->klass;
2290 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2292 method = mono_get_delegate_invoke (klass);
2295 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2296 mono_error_set_pending_exception (&error);
2303 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2305 int i, params_var, tmp_var;
2307 /* allocate local (pointer) *params[] */
2308 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2309 /* allocate local (pointer) tmp */
2310 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2312 /* alloate space on stack to store an array of pointers to the arguments */
2313 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2314 mono_mb_emit_byte (mb, CEE_PREFIX1);
2315 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2316 mono_mb_emit_stloc (mb, params_var);
2319 mono_mb_emit_ldloc (mb, params_var);
2320 mono_mb_emit_stloc (mb, tmp_var);
2322 if (save_this && sig->hasthis) {
2323 mono_mb_emit_ldloc (mb, tmp_var);
2324 mono_mb_emit_ldarg_addr (mb, 0);
2325 mono_mb_emit_byte (mb, CEE_STIND_I);
2326 /* tmp = tmp + sizeof (gpointer) */
2327 if (sig->param_count)
2328 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2332 for (i = 0; i < sig->param_count; i++) {
2333 mono_mb_emit_ldloc (mb, tmp_var);
2334 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2335 mono_mb_emit_byte (mb, CEE_STIND_I);
2336 /* tmp = tmp + sizeof (gpointer) */
2337 if (i < (sig->param_count - 1))
2338 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2344 #endif /* DISABLE_JIT */
2347 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2351 GString *res = g_string_new ("");
2354 g_string_append (res, prefix);
2355 g_string_append_c (res, '_');
2358 mono_type_get_desc (res, sig->ret, FALSE);
2361 g_string_append (res, "__this__");
2363 for (i = 0; i < sig->param_count; ++i) {
2364 g_string_append_c (res, '_');
2365 mono_type_get_desc (res, sig->params [i], FALSE);
2368 g_string_free (res, FALSE);
2373 * mono_marshal_get_string_encoding:
2375 * Return the string encoding which should be used for a given parameter.
2377 static MonoMarshalNative
2378 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2380 /* First try the parameter marshal info */
2382 if (spec->native == MONO_NATIVE_LPARRAY) {
2383 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2384 return spec->data.array_data.elem_type;
2387 return spec->native;
2391 return MONO_NATIVE_LPSTR;
2393 /* Then try the method level marshal info */
2394 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2395 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2396 return MONO_NATIVE_LPSTR;
2397 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2398 return MONO_NATIVE_LPWSTR;
2399 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2401 return MONO_NATIVE_LPWSTR;
2403 return MONO_NATIVE_LPSTR;
2406 return MONO_NATIVE_LPSTR;
2410 static MonoMarshalConv
2411 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2413 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2416 case MONO_NATIVE_LPWSTR:
2417 return MONO_MARSHAL_CONV_STR_LPWSTR;
2418 case MONO_NATIVE_LPSTR:
2419 case MONO_NATIVE_VBBYREFSTR:
2420 return MONO_MARSHAL_CONV_STR_LPSTR;
2421 case MONO_NATIVE_LPTSTR:
2422 return MONO_MARSHAL_CONV_STR_LPTSTR;
2423 case MONO_NATIVE_BSTR:
2424 return MONO_MARSHAL_CONV_STR_BSTR;
2425 case MONO_NATIVE_UTF8STR:
2426 return MONO_MARSHAL_CONV_STR_UTF8STR;
2428 return MONO_MARSHAL_CONV_INVALID;
2432 static MonoMarshalConv
2433 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2435 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2438 case MONO_NATIVE_LPWSTR:
2439 return MONO_MARSHAL_CONV_SB_LPWSTR;
2440 case MONO_NATIVE_LPSTR:
2441 return MONO_MARSHAL_CONV_SB_LPSTR;
2442 case MONO_NATIVE_UTF8STR:
2443 return MONO_MARSHAL_CONV_SB_UTF8STR;
2444 case MONO_NATIVE_LPTSTR:
2445 return MONO_MARSHAL_CONV_SB_LPTSTR;
2447 return MONO_MARSHAL_CONV_INVALID;
2451 static MonoMarshalConv
2452 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2454 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2459 case MONO_NATIVE_LPWSTR:
2461 return MONO_MARSHAL_CONV_LPWSTR_STR;
2462 case MONO_NATIVE_UTF8STR:
2463 return MONO_MARSHAL_CONV_UTF8STR_STR;
2464 case MONO_NATIVE_LPSTR:
2465 case MONO_NATIVE_VBBYREFSTR:
2466 return MONO_MARSHAL_CONV_LPSTR_STR;
2467 case MONO_NATIVE_LPTSTR:
2468 return MONO_MARSHAL_CONV_LPTSTR_STR;
2469 case MONO_NATIVE_BSTR:
2470 return MONO_MARSHAL_CONV_BSTR_STR;
2472 return MONO_MARSHAL_CONV_INVALID;
2476 static MonoMarshalConv
2477 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2479 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2484 case MONO_NATIVE_LPWSTR:
2486 * mono_string_builder_to_utf16 does not allocate a
2487 * new buffer, so no need to free it.
2490 return MONO_MARSHAL_CONV_LPWSTR_SB;
2491 case MONO_NATIVE_UTF8STR:
2492 return MONO_MARSHAL_CONV_UTF8STR_SB;
2493 case MONO_NATIVE_LPSTR:
2494 return MONO_MARSHAL_CONV_LPSTR_SB;
2496 case MONO_NATIVE_LPTSTR:
2497 return MONO_MARSHAL_CONV_LPTSTR_SB;
2500 return MONO_MARSHAL_CONV_INVALID;
2505 * Return whenever a field of a native structure or an array member needs to
2509 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2511 MonoMarshalNative encoding;
2514 case MONO_TYPE_VALUETYPE:
2515 /* FIXME: Optimize this */
2517 case MONO_TYPE_OBJECT:
2518 case MONO_TYPE_CLASS:
2519 if (t->data.klass == mono_defaults.stringbuilder_class) {
2521 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2525 case MONO_TYPE_STRING:
2526 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2527 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2534 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2537 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2540 mono_marshal_lock ();
2543 g_hash_table_new (hash_func, equal_func);
2544 mono_memory_barrier ();
2547 mono_marshal_unlock ();
2553 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2555 return get_cache (var, hash_func, equal_func);
2559 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2563 mono_marshal_lock ();
2564 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2565 mono_marshal_unlock ();
2572 * Create a MonoMethod from MB, set INFO as wrapper info.
2575 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2576 int max_stack, WrapperInfo *info)
2580 res = mono_mb_create_method (mb, sig, max_stack);
2582 mono_marshal_set_wrapper_info (res, info);
2586 /* Create the method from the builder and place it in the cache */
2588 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2589 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2590 int max_stack, WrapperInfo *info, gboolean *out_found)
2597 mono_marshal_lock ();
2598 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2599 mono_marshal_unlock ();
2602 newm = mono_mb_create_method (mb, sig, max_stack);
2603 mono_marshal_lock ();
2604 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2607 g_hash_table_insert (cache, key, res);
2608 mono_marshal_set_wrapper_info (res, info);
2609 mono_marshal_unlock ();
2613 mono_marshal_unlock ();
2614 mono_free_method (newm);
2622 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2623 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2626 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2630 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2633 int wrapper_type = wrapper->wrapper_type;
2636 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2639 info = mono_marshal_get_wrapper_info (wrapper);
2641 switch (wrapper_type) {
2642 case MONO_WRAPPER_REMOTING_INVOKE:
2643 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2644 case MONO_WRAPPER_XDOMAIN_INVOKE:
2645 m = info->d.remoting.method;
2646 if (wrapper->is_inflated) {
2650 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2651 * contains an uninflated method.
2653 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2654 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2658 case MONO_WRAPPER_SYNCHRONIZED:
2659 m = info->d.synchronized.method;
2660 if (wrapper->is_inflated) {
2663 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2664 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2668 case MONO_WRAPPER_UNBOX:
2669 return info->d.unbox.method;
2670 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2671 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2672 return info->d.managed_to_native.method;
2675 case MONO_WRAPPER_RUNTIME_INVOKE:
2676 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2677 return info->d.runtime_invoke.method;
2680 case MONO_WRAPPER_DELEGATE_INVOKE:
2682 return info->d.delegate_invoke.method;
2691 * mono_marshal_get_wrapper_info:
2693 * Retrieve the WrapperInfo structure associated with WRAPPER.
2696 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2698 g_assert (wrapper->wrapper_type);
2700 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2704 * mono_marshal_set_wrapper_info:
2706 * Set the WrapperInfo structure associated with the wrapper
2707 * method METHOD to INFO.
2710 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2714 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2717 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2722 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2726 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2727 info->subtype = subtype;
2732 * get_wrapper_target_class:
2734 * Return the class where a wrapper method should be placed.
2737 get_wrapper_target_class (MonoImage *image)
2744 * - can't put all wrappers into an mscorlib class, because they reference
2745 * metadata (signature) so they should be put into the same image as the
2746 * method they wrap, so they are unloaded together.
2747 * - putting them into a class with a type initalizer could cause the
2748 * initializer to be executed which can be a problem if the wrappers are
2750 * - putting them into an inflated class can cause problems if the the
2751 * class is deleted because it references an image which is unloaded.
2752 * To avoid these problems, we put the wrappers into the <Module> class of
2755 if (image_is_dynamic (image)) {
2756 klass = ((MonoDynamicImage*)image)->wrappers_type;
2758 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2759 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2767 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2768 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2772 * check_generic_wrapper_cache:
2774 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2775 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2776 * generic method definition.
2779 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2782 MonoMethod *inst, *def;
2783 MonoGenericContext *ctx;
2785 g_assert (orig_method->is_inflated);
2786 ctx = mono_method_get_context (orig_method);
2789 * Look for the instance
2791 res = mono_marshal_find_in_cache (cache, key);
2796 * Look for the definition
2798 def = mono_marshal_find_in_cache (cache, def_key);
2801 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2802 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2804 mono_memory_barrier ();
2805 mono_marshal_lock ();
2806 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2808 g_hash_table_insert (cache, key, inst);
2811 mono_marshal_unlock ();
2818 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2821 MonoMethod *inst, *res;
2824 * We use the same cache for the generic definition and the instances.
2826 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2827 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2828 mono_memory_barrier ();
2829 mono_marshal_lock ();
2830 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2832 g_hash_table_insert (cache, key, inst);
2835 mono_marshal_unlock ();
2840 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2844 MonoMethod *inst, *def;
2847 * Look for the instance
2849 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2854 * Look for the definition
2856 def = mono_marshal_find_in_cache (cache, def_method->klass);
2858 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2859 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2862 mono_memory_barrier ();
2863 mono_marshal_lock ();
2864 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2866 g_hash_table_insert (cache, orig_method->klass, inst);
2869 mono_marshal_unlock ();
2876 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2879 MonoMethod *inst, *res;
2882 * We use the same cache for the generic definition and the instances.
2884 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2885 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2887 mono_memory_barrier ();
2888 mono_marshal_lock ();
2889 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2891 g_hash_table_insert (cache, orig_method->klass, inst);
2894 mono_marshal_unlock ();
2899 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2901 MonoMethodSignature *sig;
2902 MonoMethodBuilder *mb;
2907 MonoGenericContext *ctx = NULL;
2908 MonoMethod *orig_method = NULL;
2910 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2911 !strcmp (method->name, "BeginInvoke"));
2914 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2916 if (method->is_inflated) {
2917 orig_method = method;
2918 ctx = &((MonoMethodInflated*)method)->context;
2919 method = ((MonoMethodInflated*)method)->declaring;
2922 sig = mono_signature_no_pinvoke (method);
2928 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2929 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2933 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2934 (GHashFunc)mono_signature_hash,
2935 (GCompareFunc)mono_metadata_signature_equal);
2936 if ((res = mono_marshal_find_in_cache (cache, sig)))
2940 g_assert (sig->hasthis);
2942 name = mono_signature_to_name (sig, "begin_invoke");
2944 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2946 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2950 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2952 mono_mb_emit_ldarg (mb, 0);
2953 mono_mb_emit_ldloc (mb, params_var);
2954 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2955 mono_mb_emit_byte (mb, CEE_RET);
2960 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2961 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2963 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2970 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2972 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2975 MonoDomain *domain = mono_domain_get ();
2976 MonoAsyncResult *ares;
2977 MonoMethod *method = NULL;
2978 MonoMethodSignature *sig;
2979 MonoMethodMessage *msg;
2980 MonoObject *res, *exc;
2981 MonoArray *out_args;
2984 g_assert (delegate);
2986 if (!delegate->method_info) {
2987 g_assert (delegate->method);
2988 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2989 if (!mono_error_ok (&error)) {
2990 mono_error_set_pending_exception (&error);
2993 MONO_OBJECT_SETREF (delegate, method_info, rm);
2996 if (!delegate->method_info || !delegate->method_info->method)
2997 g_assert_not_reached ();
2999 klass = delegate->object.vtable->klass;
3001 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3002 g_assert (method != NULL);
3004 sig = mono_signature_no_pinvoke (method);
3006 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3007 if (mono_error_set_pending_exception (&error))
3010 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3012 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."));
3016 if (ares->async_delegate != (MonoObject*)delegate) {
3017 mono_set_pending_exception (mono_get_exception_invalid_operation (
3018 "The IAsyncResult object provided does not match this delegate."));
3022 #ifndef DISABLE_REMOTING
3023 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3024 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3025 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3026 if (!mono_error_ok (&error)) {
3027 mono_error_set_pending_exception (&error);
3030 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3031 if (mono_error_set_pending_exception (&error))
3033 msg->call_type = CallType_EndInvoke;
3034 MONO_OBJECT_SETREF (msg, async_result, ares);
3035 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3036 if (!mono_error_ok (&error)) {
3037 mono_error_set_pending_exception (&error);
3043 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc, &error);
3044 if (mono_error_set_pending_exception (&error))
3049 if (((MonoException*)exc)->stack_trace) {
3050 MonoError inner_error;
3051 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3052 if (is_ok (&inner_error)) {
3054 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3056 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3059 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3061 mono_set_pending_exception ((MonoException*)exc);
3064 mono_method_return_message_restore (method, params, out_args, &error);
3065 mono_error_set_pending_exception (&error);
3072 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3074 MonoType *t = mono_type_get_underlying_type (return_type);
3076 if (return_type->byref)
3077 return_type = &mono_defaults.int_class->byval_arg;
3080 case MONO_TYPE_VOID:
3081 g_assert_not_reached ();
3084 case MONO_TYPE_STRING:
3085 case MONO_TYPE_CLASS:
3086 case MONO_TYPE_OBJECT:
3087 case MONO_TYPE_ARRAY:
3088 case MONO_TYPE_SZARRAY:
3092 case MONO_TYPE_BOOLEAN:
3095 case MONO_TYPE_CHAR:
3105 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3106 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3108 case MONO_TYPE_GENERICINST:
3109 if (!mono_type_generic_inst_is_valuetype (t))
3112 case MONO_TYPE_VALUETYPE: {
3113 MonoClass *klass = mono_class_from_mono_type (return_type);
3114 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3115 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3119 case MONO_TYPE_MVAR: {
3120 MonoClass *klass = mono_class_from_mono_type (return_type);
3121 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3125 g_warning ("type 0x%x not handled", return_type->type);
3126 g_assert_not_reached ();
3129 mono_mb_emit_byte (mb, CEE_RET);
3132 #endif /* DISABLE_JIT */
3135 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3137 MonoMethodSignature *sig;
3138 MonoMethodBuilder *mb;
3143 MonoGenericContext *ctx = NULL;
3144 MonoMethod *orig_method = NULL;
3146 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3147 !strcmp (method->name, "EndInvoke"));
3150 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3152 if (method->is_inflated) {
3153 orig_method = method;
3154 ctx = &((MonoMethodInflated*)method)->context;
3155 method = ((MonoMethodInflated*)method)->declaring;
3158 sig = mono_signature_no_pinvoke (method);
3164 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3165 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3169 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3170 (GHashFunc)mono_signature_hash,
3171 (GCompareFunc)mono_metadata_signature_equal);
3172 if ((res = mono_marshal_find_in_cache (cache, sig)))
3176 g_assert (sig->hasthis);
3178 name = mono_signature_to_name (sig, "end_invoke");
3180 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3182 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3186 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3188 mono_mb_emit_ldarg (mb, 0);
3189 mono_mb_emit_ldloc (mb, params_var);
3190 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3192 if (sig->ret->type == MONO_TYPE_VOID) {
3193 mono_mb_emit_byte (mb, CEE_POP);
3194 mono_mb_emit_byte (mb, CEE_RET);
3196 mono_mb_emit_restore_result (mb, sig->ret);
3201 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3202 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3204 res = mono_mb_create_and_cache (cache, sig,
3205 mb, sig, sig->param_count + 16);
3214 MonoMethodSignature *sig;
3216 } SignaturePointerPair;
3219 signature_pointer_pair_hash (gconstpointer data)
3221 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3223 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3227 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3229 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3230 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3234 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3236 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3238 return pair->pointer == user_data;
3242 free_signature_pointer_pair (SignaturePointerPair *pair)
3248 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3250 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3252 MonoMethodBuilder *mb;
3255 gpointer cache_key = NULL;
3256 SignaturePointerPair key;
3257 SignaturePointerPair *new_key;
3258 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3259 int pos0, pos1, pos2;
3261 MonoClass *target_class = NULL;
3262 gboolean closed_over_null = FALSE;
3263 MonoGenericContext *ctx = NULL;
3264 MonoGenericContainer *container = NULL;
3265 MonoMethod *orig_method = method;
3267 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3271 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3272 !strcmp (method->name, "Invoke"));
3274 invoke_sig = sig = mono_signature_no_pinvoke (method);
3277 * If the delegate target is null, and the target method is not static, a virtual
3278 * call is made to that method with the first delegate argument as this. This is
3279 * a non-documented .NET feature.
3282 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3283 if (target_method->is_inflated) {
3285 MonoType *target_type;
3287 g_assert (method->signature->hasthis);
3288 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3289 mono_method_get_context (method), &error);
3290 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3291 target_class = mono_class_from_mono_type (target_type);
3293 target_class = target_method->klass;
3296 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3299 if (static_method_with_first_arg_bound) {
3300 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3301 g_assert (!callvirt);
3302 invoke_sig = mono_method_signature (target_method);
3306 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3308 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3309 ctx = &((MonoMethodInflated*)method)->context;
3310 method = ((MonoMethodInflated*)method)->declaring;
3312 container = mono_method_get_generic_container (method);
3314 container = method->klass->generic_container;
3315 g_assert (container);
3317 invoke_sig = sig = mono_signature_no_pinvoke (method);
3324 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3325 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3328 cache_key = method->klass;
3329 } else if (static_method_with_first_arg_bound) {
3330 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3331 (GHashFunc)mono_signature_hash,
3332 (GCompareFunc)mono_metadata_signature_equal);
3334 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3336 res = mono_marshal_find_in_cache (cache, invoke_sig);
3339 cache_key = invoke_sig;
3340 } else if (callvirt) {
3341 GHashTable **cache_ptr;
3343 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3345 /* We need to cache the signature+method pair */
3346 mono_marshal_lock ();
3348 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3350 key.sig = invoke_sig;
3351 key.pointer = target_method;
3352 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3353 mono_marshal_unlock ();
3357 // Inflated methods should not be in this cache because it's not stored on the imageset.
3358 g_assert (!method->is_inflated);
3359 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3360 (GHashFunc)mono_signature_hash,
3361 (GCompareFunc)mono_metadata_signature_equal);
3362 res = mono_marshal_find_in_cache (cache, sig);
3368 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3369 static_sig->hasthis = 0;
3370 if (!static_method_with_first_arg_bound)
3371 invoke_sig = static_sig;
3373 if (static_method_with_first_arg_bound)
3374 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3375 else if (closed_over_null)
3376 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3378 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3380 name = mono_signature_to_name (invoke_sig, "invoke");
3382 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3384 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3388 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3390 /* allocate local 0 (object) */
3391 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3392 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3393 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3394 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3395 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3398 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3400 g_assert (sig->hasthis);
3403 * {type: sig->ret} res;
3404 * if (delegates == null) {
3405 * return this.<target> ( args .. );
3407 * int i = 0, len = this.delegates.Length;
3409 * res = this.delegates [i].Invoke ( args .. );
3410 * } while (++i < len);
3415 /* this wrapper can be used in unmanaged-managed transitions */
3416 emit_thread_interrupt_checkpoint (mb);
3418 /* delegates = this.delegates */
3419 mono_mb_emit_ldarg (mb, 0);
3420 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3421 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3422 mono_mb_emit_stloc (mb, local_delegates);
3424 /* if (delegates == null) */
3425 mono_mb_emit_ldloc (mb, local_delegates);
3426 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3428 /* return target.<target_method|method_ptr> ( args .. ); */
3430 /* target = d.target; */
3431 mono_mb_emit_ldarg (mb, 0);
3432 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3433 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3434 mono_mb_emit_stloc (mb, local_target);
3436 /*static methods with bound first arg can have null target and still be bound*/
3437 if (!static_method_with_first_arg_bound) {
3438 /* if target != null */
3439 mono_mb_emit_ldloc (mb, local_target);
3440 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3442 /* then call this->method_ptr nonstatic */
3445 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3447 mono_mb_emit_ldloc (mb, local_target);
3448 for (i = 0; i < sig->param_count; ++i)
3449 mono_mb_emit_ldarg (mb, i + 1);
3450 mono_mb_emit_ldarg (mb, 0);
3451 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3452 mono_mb_emit_byte (mb, CEE_LDIND_I);
3453 mono_mb_emit_ldarg (mb, 0);
3454 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3455 mono_mb_emit_byte (mb, CEE_LDIND_I);
3456 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3457 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3458 mono_mb_emit_byte (mb, CEE_RET);
3461 /* else [target == null] call this->method_ptr static */
3462 mono_mb_patch_branch (mb, pos0);
3466 if (!closed_over_null) {
3467 if (target_class->valuetype) {
3468 mono_mb_emit_ldarg (mb, 1);
3469 for (i = 1; i < sig->param_count; ++i)
3470 mono_mb_emit_ldarg (mb, i + 1);
3471 mono_mb_emit_op (mb, CEE_CALL, target_method);
3473 mono_mb_emit_ldarg (mb, 1);
3474 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3475 for (i = 1; i < sig->param_count; ++i)
3476 mono_mb_emit_ldarg (mb, i + 1);
3477 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3480 mono_mb_emit_byte (mb, CEE_LDNULL);
3481 for (i = 0; i < sig->param_count; ++i)
3482 mono_mb_emit_ldarg (mb, i + 1);
3483 mono_mb_emit_op (mb, CEE_CALL, target_method);
3486 if (static_method_with_first_arg_bound) {
3487 mono_mb_emit_ldloc (mb, local_target);
3488 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3489 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3491 for (i = 0; i < sig->param_count; ++i)
3492 mono_mb_emit_ldarg (mb, i + 1);
3493 mono_mb_emit_ldarg (mb, 0);
3494 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3495 mono_mb_emit_byte (mb, CEE_LDIND_I);
3496 mono_mb_emit_ldarg (mb, 0);
3497 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3498 mono_mb_emit_byte (mb, CEE_LDIND_I);
3499 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3500 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3503 mono_mb_emit_byte (mb, CEE_RET);
3505 /* else [delegates != null] */
3506 mono_mb_patch_branch (mb, pos2);
3508 /* len = delegates.Length; */
3509 mono_mb_emit_ldloc (mb, local_delegates);
3510 mono_mb_emit_byte (mb, CEE_LDLEN);
3511 mono_mb_emit_byte (mb, CEE_CONV_I4);
3512 mono_mb_emit_stloc (mb, local_len);
3515 mono_mb_emit_icon (mb, 0);
3516 mono_mb_emit_stloc (mb, local_i);
3518 pos1 = mono_mb_get_label (mb);
3520 /* d = delegates [i]; */
3521 mono_mb_emit_ldloc (mb, local_delegates);
3522 mono_mb_emit_ldloc (mb, local_i);
3523 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3524 mono_mb_emit_stloc (mb, local_d);
3526 /* res = d.Invoke ( args .. ); */
3527 mono_mb_emit_ldloc (mb, local_d);
3528 for (i = 0; i < sig->param_count; i++)
3529 mono_mb_emit_ldarg (mb, i + 1);
3531 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3534 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3535 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3538 mono_mb_emit_stloc (mb, local_res);
3541 mono_mb_emit_add_to_local (mb, local_i, 1);
3544 mono_mb_emit_ldloc (mb, local_i);
3545 mono_mb_emit_ldloc (mb, local_len);
3546 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3550 mono_mb_emit_ldloc (mb, local_res);
3551 mono_mb_emit_byte (mb, CEE_RET);
3553 mb->skip_visibility = 1;
3554 #endif /* DISABLE_JIT */
3556 info = mono_wrapper_info_create (mb, subtype);
3557 info->d.delegate_invoke.method = orig_method;
3562 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3563 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3564 } else if (callvirt) {
3565 new_key = g_new0 (SignaturePointerPair, 1);
3568 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3572 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3576 /* mono_method_print_code (res); */
3582 * the returned method invokes all methods in a multicast delegate.
3585 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3587 gboolean callvirt = FALSE;
3588 gboolean static_method_with_first_arg_bound = FALSE;
3589 MonoMethod *target_method = NULL;
3590 MonoMethodSignature *sig;
3592 sig = mono_signature_no_pinvoke (method);
3594 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3596 target_method = del->method;
3599 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3600 static_method_with_first_arg_bound = TRUE;
3601 target_method = del->method;
3604 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3608 MonoMethodSignature *ctor_sig;
3609 MonoMethodSignature *sig;
3612 /* protected by the marshal lock, contains CtorSigPair pointers */
3613 static GSList *strsig_list = NULL;
3615 static MonoMethodSignature *
3616 lookup_string_ctor_signature (MonoMethodSignature *sig)
3618 MonoMethodSignature *callsig;
3622 mono_marshal_lock ();
3624 for (item = strsig_list; item; item = item->next) {
3625 cs = (CtorSigPair *)item->data;
3626 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3627 * because it is lock-free.
3629 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3634 mono_marshal_unlock ();
3638 static MonoMethodSignature *
3639 add_string_ctor_signature (MonoMethod *method)
3641 MonoMethodSignature *callsig;
3644 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3645 callsig->ret = &mono_defaults.string_class->byval_arg;
3646 cs = g_new (CtorSigPair, 1);
3648 cs->ctor_sig = mono_method_signature (method);
3650 mono_marshal_lock ();
3651 strsig_list = g_slist_prepend (strsig_list, cs);
3652 mono_marshal_unlock ();
3657 * mono_marshal_get_string_ctor_signature:
3659 * Return the modified signature used by string ctors (they return the newly created
3662 MonoMethodSignature*
3663 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3665 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3667 sig = add_string_ctor_signature (method);
3673 get_runtime_invoke_type (MonoType *t, gboolean ret)
3676 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3678 /* Can't share this with 'I' as that needs another indirection */
3679 return &mono_defaults.int_class->this_arg;
3682 if (MONO_TYPE_IS_REFERENCE (t))
3683 return &mono_defaults.object_class->byval_arg;
3686 /* The result needs to be boxed */
3691 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3694 return &mono_defaults.sbyte_class->byval_arg;
3696 return &mono_defaults.int16_class->byval_arg;
3698 return &mono_defaults.int32_class->byval_arg;
3701 return &mono_defaults.int64_class->byval_arg;
3702 case MONO_TYPE_BOOLEAN:
3703 return &mono_defaults.byte_class->byval_arg;
3704 case MONO_TYPE_CHAR:
3705 return &mono_defaults.uint16_class->byval_arg;
3707 return &mono_defaults.int_class->byval_arg;
3708 case MONO_TYPE_VALUETYPE:
3709 if (t->data.klass->enumtype) {
3710 t = mono_class_enum_basetype (t->data.klass);
3720 * mono_marshal_get_runtime_invoke_sig:
3722 * Return a common signature used for sharing runtime invoke wrappers.
3724 static MonoMethodSignature*
3725 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3727 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3730 res->generic_param_count = 0;
3731 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3732 for (i = 0; i < res->param_count; ++i)
3733 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3739 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3741 /* Can't share wrappers which return a vtype since it needs to be boxed */
3742 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))
3745 return mono_metadata_signature_equal (sig1, sig2);
3753 * Emit the call to the wrapper method from a runtime invoke wrapper.
3756 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3757 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3759 gboolean virtual_, gboolean need_direct_wrapper)
3761 static MonoString *string_dummy = NULL;
3763 int *tmp_nullable_locals;
3764 gboolean void_ret = FALSE;
3765 gboolean string_ctor = method && method->string_ctor;
3767 /* to make it work with our special string constructors */
3768 if (!string_dummy) {
3769 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3770 string_dummy = mono_string_new_wrapper ("dummy");
3774 g_assert (sig->hasthis);
3775 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3780 if (mono_gc_is_moving ()) {
3781 mono_mb_emit_ptr (mb, &string_dummy);
3782 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3784 mono_mb_emit_ptr (mb, string_dummy);
3787 mono_mb_emit_ldarg (mb, 0);
3791 tmp_nullable_locals = g_new0 (int, sig->param_count);
3793 for (i = 0; i < sig->param_count; i++) {
3794 MonoType *t = sig->params [i];
3797 mono_mb_emit_ldarg (mb, 1);
3799 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3800 mono_mb_emit_byte (mb, CEE_ADD);
3804 mono_mb_emit_byte (mb, CEE_LDIND_I);
3805 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3806 * So to make this work we unbox it to a local variablee and push a reference to that.
3808 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3809 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3811 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3812 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3813 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3818 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3819 type = sig->params [i]->type;
3823 case MONO_TYPE_BOOLEAN:
3827 case MONO_TYPE_CHAR:
3836 mono_mb_emit_byte (mb, CEE_LDIND_I);
3837 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3839 case MONO_TYPE_STRING:
3840 case MONO_TYPE_CLASS:
3841 case MONO_TYPE_ARRAY:
3843 case MONO_TYPE_SZARRAY:
3844 case MONO_TYPE_OBJECT:
3845 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3847 case MONO_TYPE_GENERICINST:
3848 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3849 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3854 case MONO_TYPE_VALUETYPE:
3855 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3856 type = mono_class_enum_basetype (t->data.klass)->type;
3859 mono_mb_emit_byte (mb, CEE_LDIND_I);
3860 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3861 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3862 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3863 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3865 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3869 g_assert_not_reached ();
3874 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3875 } else if (need_direct_wrapper) {
3876 mono_mb_emit_op (mb, CEE_CALL, method);
3878 mono_mb_emit_ldarg (mb, 3);
3879 mono_mb_emit_calli (mb, callsig);
3882 if (sig->ret->byref) {
3884 g_assert_not_reached ();
3887 switch (sig->ret->type) {
3888 case MONO_TYPE_VOID:
3892 case MONO_TYPE_BOOLEAN:
3893 case MONO_TYPE_CHAR:
3906 case MONO_TYPE_VALUETYPE:
3907 case MONO_TYPE_TYPEDBYREF:
3908 case MONO_TYPE_GENERICINST:
3909 /* box value types */
3910 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3912 case MONO_TYPE_STRING:
3913 case MONO_TYPE_CLASS:
3914 case MONO_TYPE_ARRAY:
3915 case MONO_TYPE_SZARRAY:
3916 case MONO_TYPE_OBJECT:
3920 /* The result is an IntPtr */
3921 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3924 g_assert_not_reached ();
3928 mono_mb_emit_stloc (mb, loc_res);
3930 /* Convert back nullable-byref arguments */
3931 for (i = 0; i < sig->param_count; i++) {
3932 MonoType *t = sig->params [i];
3935 * Box the result and put it back into the array, the caller will have
3936 * to obtain it from there.
3938 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3939 mono_mb_emit_ldarg (mb, 1);
3940 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3941 mono_mb_emit_byte (mb, CEE_ADD);
3943 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3944 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3946 mono_mb_emit_byte (mb, CEE_STIND_REF);
3950 g_free (tmp_nullable_locals);
3954 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3955 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3956 gboolean virtual_, gboolean need_direct_wrapper)
3959 MonoExceptionClause *clause;
3960 int loc_res, loc_exc;
3962 /* The wrapper looks like this:
3968 * } catch (Exception e) {
3976 /* allocate local 0 (object) tmp */
3977 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3978 /* allocate local 1 (object) exc */
3979 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3981 /* *exc is assumed to be initialized to NULL by the caller */
3983 mono_mb_emit_byte (mb, CEE_LDARG_2);
3984 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3989 labels [1] = mono_mb_get_label (mb);
3990 emit_thread_force_interrupt_checkpoint (mb);
3991 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3993 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3995 /* Add a try clause around the call */
3996 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3997 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3998 clause->data.catch_class = mono_defaults.exception_class;
3999 clause->try_offset = labels [1];
4000 clause->try_len = mono_mb_get_label (mb) - labels [1];
4002 clause->handler_offset = mono_mb_get_label (mb);
4005 mono_mb_emit_stloc (mb, loc_exc);
4006 mono_mb_emit_byte (mb, CEE_LDARG_2);
4007 mono_mb_emit_ldloc (mb, loc_exc);
4008 mono_mb_emit_byte (mb, CEE_STIND_REF);
4010 mono_mb_emit_branch (mb, CEE_LEAVE);
4012 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4014 mono_mb_set_clauses (mb, 1, clause);
4016 mono_mb_patch_branch (mb, labels [2]);
4017 mono_mb_emit_ldloc (mb, loc_res);
4018 mono_mb_emit_byte (mb, CEE_RET);
4023 mono_mb_patch_branch (mb, labels [0]);
4024 emit_thread_force_interrupt_checkpoint (mb);
4025 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4027 mono_mb_emit_ldloc (mb, 0);
4028 mono_mb_emit_byte (mb, CEE_RET);
4033 * generates IL code for the runtime invoke function
4034 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4036 * we also catch exceptions if exc != null
4037 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4038 * it means that the compiled code for METHOD does not have to be looked up
4039 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4040 * its METHOD argument.
4043 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4045 MonoMethodSignature *sig, *csig, *callsig;
4046 MonoMethodBuilder *mb;
4047 GHashTable *cache = NULL;
4048 MonoClass *target_klass;
4049 MonoMethod *res = NULL;
4050 static MonoMethodSignature *cctor_signature = NULL;
4051 static MonoMethodSignature *finalize_signature = NULL;
4053 const char *param_names [16];
4054 gboolean need_direct_wrapper = FALSE;
4059 if (!cctor_signature) {
4060 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4061 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4063 if (!finalize_signature) {
4064 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4065 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4066 finalize_signature->hasthis = 1;
4070 need_direct_wrapper = TRUE;
4073 * Use a separate cache indexed by methods to speed things up and to avoid the
4074 * boundless mempool growth caused by the signature_dup stuff below.
4077 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4079 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4081 res = mono_marshal_find_in_cache (cache, method);
4085 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4086 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4088 * Array Get/Set/Address methods. The JIT implements them using inline code
4089 * so we need to create an invoke wrapper which calls the method directly.
4091 need_direct_wrapper = TRUE;
4094 if (method->string_ctor) {
4095 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4097 callsig = add_string_ctor_signature (method);
4098 /* Can't share this as we push a string as this */
4099 need_direct_wrapper = TRUE;
4101 if (method_is_dynamic (method))
4102 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4104 callsig = mono_method_signature (method);
4107 sig = mono_method_signature (method);
4109 target_klass = get_wrapper_target_class (method->klass->image);
4111 /* Try to share wrappers for non-corlib methods with simple signatures */
4112 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4113 callsig = cctor_signature;
4114 target_klass = mono_defaults.object_class;
4115 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4116 callsig = finalize_signature;
4117 target_klass = mono_defaults.object_class;
4120 if (need_direct_wrapper) {
4121 /* Already searched at the start */
4123 MonoMethodSignature *tmp_sig;
4125 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4126 GHashTable **cache_table = NULL;
4128 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4129 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4131 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4133 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4134 (GCompareFunc)runtime_invoke_signature_equal);
4136 /* from mono_marshal_find_in_cache */
4137 mono_marshal_lock ();
4138 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4139 mono_marshal_unlock ();
4146 /* Make a copy of the signature from the image mempool */
4148 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4152 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4154 csig->ret = &mono_defaults.object_class->byval_arg;
4155 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4156 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4158 csig->params [0] = &mono_defaults.object_class->byval_arg;
4159 csig->params [1] = &mono_defaults.int_class->byval_arg;
4160 csig->params [2] = &mono_defaults.int_class->byval_arg;
4161 csig->params [3] = &mono_defaults.int_class->byval_arg;
4164 /* This is called from runtime code so it has to be cdecl */
4165 csig->call_convention = MONO_CALL_C;
4168 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4169 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4173 param_names [0] = "this";
4174 param_names [1] = "params";
4175 param_names [2] = "exc";
4176 param_names [3] = "method";
4177 mono_mb_set_param_names (mb, param_names);
4179 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4182 if (need_direct_wrapper) {
4184 mb->skip_visibility = 1;
4186 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4187 info->d.runtime_invoke.method = method;
4188 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4190 /* taken from mono_mb_create_and_cache */
4191 mono_marshal_lock ();
4192 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4193 mono_marshal_unlock ();
4195 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4196 info->d.runtime_invoke.sig = callsig;
4198 /* Somebody may have created it before us */
4201 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4203 mono_marshal_lock ();
4204 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4206 GHashTable *direct_cache;
4208 g_hash_table_insert (cache, callsig, res);
4209 /* Can't insert it into wrapper_hash since the key is a signature */
4210 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4212 g_hash_table_insert (direct_cache, method, res);
4214 mono_free_method (newm);
4216 mono_marshal_unlock ();
4219 /* end mono_mb_create_and_cache */
4228 * mono_marshal_get_runtime_invoke_dynamic:
4230 * Return a method which can be used to invoke managed methods from native code
4232 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4233 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4234 * ARGS should point to an architecture specific structure containing
4235 * the arguments and space for the return value.
4236 * The other arguments are the same as for runtime_invoke (), except that
4237 * ARGS should contain the this argument too.
4238 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4239 * is only one copy of it, which is useful in full-aot.
4242 mono_marshal_get_runtime_invoke_dynamic (void)
4244 static MonoMethod *method;
4245 MonoMethodSignature *csig;
4246 MonoExceptionClause *clause;
4247 MonoMethodBuilder *mb;
4255 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4257 csig->ret = &mono_defaults.void_class->byval_arg;
4258 csig->params [0] = &mono_defaults.int_class->byval_arg;
4259 csig->params [1] = &mono_defaults.int_class->byval_arg;
4260 csig->params [2] = &mono_defaults.int_class->byval_arg;
4261 csig->params [3] = &mono_defaults.int_class->byval_arg;
4263 name = g_strdup ("runtime_invoke_dynamic");
4264 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4268 /* allocate local 0 (object) tmp */
4269 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4270 /* allocate local 1 (object) exc */
4271 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4273 /* cond set *exc to null */
4274 mono_mb_emit_byte (mb, CEE_LDARG_1);
4275 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4276 mono_mb_emit_byte (mb, 3);
4277 mono_mb_emit_byte (mb, CEE_LDARG_1);
4278 mono_mb_emit_byte (mb, CEE_LDNULL);
4279 mono_mb_emit_byte (mb, CEE_STIND_REF);
4281 emit_thread_force_interrupt_checkpoint (mb);
4283 mono_mb_emit_byte (mb, CEE_LDARG_0);
4284 mono_mb_emit_byte (mb, CEE_LDARG_2);
4285 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4286 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4288 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4290 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4291 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4292 clause->try_len = mono_mb_get_label (mb);
4295 clause->data.filter_offset = mono_mb_get_label (mb);
4297 mono_mb_emit_byte (mb, CEE_POP);
4298 mono_mb_emit_byte (mb, CEE_LDARG_1);
4299 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4300 mono_mb_emit_byte (mb, CEE_PREFIX1);
4301 mono_mb_emit_byte (mb, CEE_CGT_UN);
4302 mono_mb_emit_byte (mb, CEE_PREFIX1);
4303 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4305 clause->handler_offset = mono_mb_get_label (mb);
4308 /* store exception */
4309 mono_mb_emit_stloc (mb, 1);
4311 mono_mb_emit_byte (mb, CEE_LDARG_1);
4312 mono_mb_emit_ldloc (mb, 1);
4313 mono_mb_emit_byte (mb, CEE_STIND_REF);
4315 mono_mb_emit_byte (mb, CEE_LDNULL);
4316 mono_mb_emit_stloc (mb, 0);
4318 /* Check for the abort exception */
4319 mono_mb_emit_ldloc (mb, 1);
4320 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4321 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4323 /* Delay the abort exception */
4324 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4326 mono_mb_patch_short_branch (mb, posna);
4327 mono_mb_emit_branch (mb, CEE_LEAVE);
4329 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4331 mono_mb_set_clauses (mb, 1, clause);
4334 mono_mb_patch_branch (mb, pos);
4335 //mono_mb_emit_ldloc (mb, 0);
4336 mono_mb_emit_byte (mb, CEE_RET);
4337 #endif /* DISABLE_JIT */
4339 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4341 mono_marshal_lock ();
4342 /* double-checked locking */
4344 method = mono_mb_create (mb, csig, 16, info);
4346 mono_marshal_unlock ();
4354 * mono_marshal_get_runtime_invoke_for_sig:
4356 * Return a runtime invoke wrapper for a given signature.
4359 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4361 MonoMethodSignature *csig, *callsig;
4362 MonoMethodBuilder *mb;
4364 GHashTable *cache = NULL;
4365 GHashTable **cache_table = NULL;
4366 MonoMethod *res = NULL;
4368 const char *param_names [16];
4371 /* A simplified version of mono_marshal_get_runtime_invoke */
4373 image = mono_defaults.corlib;
4375 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4377 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4379 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4380 (GCompareFunc)runtime_invoke_signature_equal);
4382 /* from mono_marshal_find_in_cache */
4383 mono_marshal_lock ();
4384 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4385 mono_marshal_unlock ();
4392 /* Make a copy of the signature from the image mempool */
4393 callsig = mono_metadata_signature_dup_full (image, callsig);
4395 csig = mono_metadata_signature_alloc (image, 4);
4396 csig->ret = &mono_defaults.object_class->byval_arg;
4397 csig->params [0] = &mono_defaults.object_class->byval_arg;
4398 csig->params [1] = &mono_defaults.int_class->byval_arg;
4399 csig->params [2] = &mono_defaults.int_class->byval_arg;
4400 csig->params [3] = &mono_defaults.int_class->byval_arg;
4403 /* This is called from runtime code so it has to be cdecl */
4404 csig->call_convention = MONO_CALL_C;
4407 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4408 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4412 param_names [0] = "this";
4413 param_names [1] = "params";
4414 param_names [2] = "exc";
4415 param_names [3] = "method";
4416 mono_mb_set_param_names (mb, param_names);
4418 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4421 /* taken from mono_mb_create_and_cache */
4422 mono_marshal_lock ();
4423 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4424 mono_marshal_unlock ();
4426 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4427 info->d.runtime_invoke.sig = callsig;
4429 /* Somebody may have created it before us */
4432 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4434 mono_marshal_lock ();
4435 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4438 g_hash_table_insert (cache, callsig, res);
4440 mono_free_method (newm);
4442 mono_marshal_unlock ();
4445 /* end mono_mb_create_and_cache */
4454 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4456 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4457 klass->name_space, klass->name);
4459 mono_mb_emit_exception_marshal_directive (mb, msg);
4464 * generates IL code for the icall wrapper (the generated method
4465 * calls the unmanaged code in func)
4468 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4470 MonoMethodSignature *csig, *csig2;
4471 MonoMethodBuilder *mb;
4476 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4477 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4480 g_assert (sig->pinvoke);
4482 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4484 mb->method->save_lmf = 1;
4486 /* Add an explicit this argument */
4488 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4490 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4494 mono_mb_emit_byte (mb, CEE_LDARG_0);
4496 for (i = 0; i < sig->param_count; i++)
4497 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4499 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4500 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4501 mono_mb_emit_calli (mb, csig2);
4502 if (check_exceptions)
4503 emit_thread_interrupt_checkpoint (mb);
4504 mono_mb_emit_byte (mb, CEE_RET);
4507 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4509 if (csig->call_convention == MONO_CALL_VARARG)
4510 csig->call_convention = 0;
4512 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4513 info->d.icall.func = (gpointer)func;
4514 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4521 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4522 MonoMarshalSpec *spec,
4523 int conv_arg, MonoType **conv_arg_type,
4524 MarshalAction action)
4527 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4528 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4534 static MonoClass *ICustomMarshaler = NULL;
4535 static MonoMethod *cleanup_native, *cleanup_managed;
4536 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4537 MonoMethod *get_instance = NULL;
4538 MonoMethodBuilder *mb = m->mb;
4539 char *exception_msg = NULL;
4543 if (!ICustomMarshaler) {
4544 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4546 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4547 goto handle_exception;
4550 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4551 g_assert (cleanup_native);
4552 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4553 g_assert (cleanup_managed);
4554 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4555 g_assert (marshal_managed_to_native);
4556 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4557 g_assert (marshal_native_to_managed);
4559 mono_memory_barrier ();
4560 ICustomMarshaler = klass;
4563 if (spec->data.custom_data.image)
4564 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4566 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4567 g_assert (mtype != NULL);
4568 mono_error_assert_ok (&error);
4569 mklass = mono_class_from_mono_type (mtype);
4570 g_assert (mklass != NULL);
4572 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4573 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4575 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4577 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4578 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4579 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4580 (get_sig->params [0]->type != MONO_TYPE_STRING))
4581 get_instance = NULL;
4585 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);
4588 /* Throw exception and emit compensation code if neccesary */
4589 if (exception_msg) {
4591 case MARSHAL_ACTION_CONV_IN:
4592 case MARSHAL_ACTION_CONV_RESULT:
4593 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4594 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4595 mono_mb_emit_byte (mb, CEE_POP);
4597 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4598 g_free (exception_msg);
4601 case MARSHAL_ACTION_PUSH:
4602 mono_mb_emit_byte (mb, CEE_LDNULL);
4610 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4611 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4614 case MARSHAL_ACTION_CONV_IN:
4616 case MONO_TYPE_CLASS:
4617 case MONO_TYPE_OBJECT:
4618 case MONO_TYPE_STRING:
4619 case MONO_TYPE_ARRAY:
4620 case MONO_TYPE_SZARRAY:
4621 case MONO_TYPE_VALUETYPE:
4625 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4626 g_assert_not_reached ();
4630 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4632 mono_mb_emit_byte (mb, CEE_LDNULL);
4633 mono_mb_emit_stloc (mb, conv_arg);
4635 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4638 /* Minic MS.NET behavior */
4639 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4642 /* Check for null */
4643 mono_mb_emit_ldarg (mb, argnum);
4645 mono_mb_emit_byte (mb, CEE_LDIND_I);
4646 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4648 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4650 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4652 mono_mb_emit_ldarg (mb, argnum);
4654 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4656 if (t->type == MONO_TYPE_VALUETYPE) {
4658 * Since we can't determine the type of the argument, we
4659 * will assume the unmanaged function takes a pointer.
4661 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4663 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4666 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4667 mono_mb_emit_stloc (mb, conv_arg);
4669 mono_mb_patch_branch (mb, pos2);
4672 case MARSHAL_ACTION_CONV_OUT:
4673 /* Check for null */
4674 mono_mb_emit_ldloc (mb, conv_arg);
4675 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4678 mono_mb_emit_ldarg (mb, argnum);
4680 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4682 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4684 mono_mb_emit_ldloc (mb, conv_arg);
4685 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4686 mono_mb_emit_byte (mb, CEE_STIND_REF);
4687 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4688 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4690 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4692 mono_mb_emit_ldloc (mb, conv_arg);
4693 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4695 /* We have nowhere to store the result */
4696 mono_mb_emit_byte (mb, CEE_POP);
4699 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4701 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4703 mono_mb_emit_ldloc (mb, conv_arg);
4705 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4707 mono_mb_patch_branch (mb, pos2);
4710 case MARSHAL_ACTION_PUSH:
4712 mono_mb_emit_ldloc_addr (mb, conv_arg);
4714 mono_mb_emit_ldloc (mb, conv_arg);
4717 case MARSHAL_ACTION_CONV_RESULT:
4718 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4720 mono_mb_emit_stloc (mb, 3);
4722 mono_mb_emit_ldloc (mb, 3);
4723 mono_mb_emit_stloc (mb, loc1);
4725 /* Check for null */
4726 mono_mb_emit_ldloc (mb, 3);
4727 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4729 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4731 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4732 mono_mb_emit_byte (mb, CEE_DUP);
4734 mono_mb_emit_ldloc (mb, 3);
4735 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4736 mono_mb_emit_stloc (mb, 3);
4738 mono_mb_emit_ldloc (mb, loc1);
4739 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4741 mono_mb_patch_branch (mb, pos2);
4744 case MARSHAL_ACTION_MANAGED_CONV_IN:
4745 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4747 mono_mb_emit_byte (mb, CEE_LDNULL);
4748 mono_mb_emit_stloc (mb, conv_arg);
4750 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4753 /* Check for null */
4754 mono_mb_emit_ldarg (mb, argnum);
4756 mono_mb_emit_byte (mb, CEE_LDIND_I);
4757 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4759 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4760 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4762 mono_mb_emit_ldarg (mb, argnum);
4764 mono_mb_emit_byte (mb, CEE_LDIND_I);
4766 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4767 mono_mb_emit_stloc (mb, conv_arg);
4769 mono_mb_patch_branch (mb, pos2);
4772 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4773 g_assert (!t->byref);
4775 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4777 mono_mb_emit_stloc (mb, 3);
4779 mono_mb_emit_ldloc (mb, 3);
4780 mono_mb_emit_stloc (mb, loc1);
4782 /* Check for null */
4783 mono_mb_emit_ldloc (mb, 3);
4784 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4786 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4787 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4788 mono_mb_emit_byte (mb, CEE_DUP);
4790 mono_mb_emit_ldloc (mb, 3);
4791 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4792 mono_mb_emit_stloc (mb, 3);
4794 mono_mb_emit_ldloc (mb, loc1);
4795 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4797 mono_mb_patch_branch (mb, pos2);
4800 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4802 /* Check for null */
4803 mono_mb_emit_ldloc (mb, conv_arg);
4804 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4807 mono_mb_emit_ldarg (mb, argnum);
4809 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4811 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4813 mono_mb_emit_ldloc (mb, conv_arg);
4814 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4815 mono_mb_emit_byte (mb, CEE_STIND_I);
4818 /* Call CleanUpManagedData */
4819 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4821 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4823 mono_mb_emit_ldloc (mb, conv_arg);
4824 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4826 mono_mb_patch_branch (mb, pos2);
4830 g_assert_not_reached ();
4838 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4839 MonoMarshalSpec *spec,
4840 int conv_arg, MonoType **conv_arg_type,
4841 MarshalAction action)
4844 MonoMethodBuilder *mb = m->mb;
4847 case MARSHAL_ACTION_CONV_IN: {
4848 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4850 g_assert (t->type == MONO_TYPE_OBJECT);
4851 g_assert (!t->byref);
4853 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4854 mono_mb_emit_ldarg (mb, argnum);
4855 mono_mb_emit_icon (mb, encoding);
4856 mono_mb_emit_icon (mb, t->attrs);
4857 mono_mb_emit_icall (mb, mono_marshal_asany);
4858 mono_mb_emit_stloc (mb, conv_arg);
4862 case MARSHAL_ACTION_PUSH:
4863 mono_mb_emit_ldloc (mb, conv_arg);
4866 case MARSHAL_ACTION_CONV_OUT: {
4867 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4869 mono_mb_emit_ldarg (mb, argnum);
4870 mono_mb_emit_ldloc (mb, conv_arg);
4871 mono_mb_emit_icon (mb, encoding);
4872 mono_mb_emit_icon (mb, t->attrs);
4873 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4878 g_assert_not_reached ();
4885 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4886 MonoMarshalSpec *spec,
4887 int conv_arg, MonoType **conv_arg_type,
4888 MarshalAction action)
4891 MonoMethodBuilder *mb = m->mb;
4892 MonoClass *klass, *date_time_class;
4895 klass = mono_class_from_mono_type (t);
4897 date_time_class = mono_class_get_date_time_class ();
4900 case MARSHAL_ACTION_CONV_IN:
4901 if (klass == date_time_class) {
4902 /* Convert it to an OLE DATE type */
4903 static MonoMethod *to_oadate;
4906 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4907 g_assert (to_oadate);
4909 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4912 mono_mb_emit_ldarg (mb, argnum);
4913 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4916 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4918 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4920 mono_mb_emit_ldarg_addr (mb, argnum);
4921 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4922 mono_mb_emit_stloc (mb, conv_arg);
4926 mono_mb_patch_branch (mb, pos);
4930 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4931 klass->blittable || klass->enumtype)
4934 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4936 /* store the address of the source into local variable 0 */
4938 mono_mb_emit_ldarg (mb, argnum);
4940 mono_mb_emit_ldarg_addr (mb, argnum);
4942 mono_mb_emit_stloc (mb, 0);
4944 /* allocate space for the native struct and
4945 * store the address into local variable 1 (dest) */
4946 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4947 mono_mb_emit_byte (mb, CEE_PREFIX1);
4948 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4949 mono_mb_emit_stloc (mb, conv_arg);
4952 mono_mb_emit_ldloc (mb, 0);
4953 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4956 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4958 mono_mb_emit_ldloc (mb, conv_arg);
4959 mono_mb_emit_stloc (mb, 1);
4961 /* emit valuetype conversion code */
4962 emit_struct_conv (mb, klass, FALSE);
4966 mono_mb_patch_branch (mb, pos);
4969 case MARSHAL_ACTION_PUSH:
4970 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4972 g_assert (!t->byref);
4974 /* Have to change the signature since the vtype is passed byref */
4975 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4977 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4978 klass->blittable || klass->enumtype)
4979 mono_mb_emit_ldarg_addr (mb, argnum);
4981 mono_mb_emit_ldloc (mb, conv_arg);
4985 if (klass == date_time_class) {
4987 mono_mb_emit_ldloc_addr (mb, conv_arg);
4989 mono_mb_emit_ldloc (mb, conv_arg);
4993 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4994 klass->blittable || klass->enumtype) {
4995 mono_mb_emit_ldarg (mb, argnum);
4998 mono_mb_emit_ldloc (mb, conv_arg);
5000 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5001 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5005 case MARSHAL_ACTION_CONV_OUT:
5006 if (klass == date_time_class) {
5007 /* Convert from an OLE DATE type */
5008 static MonoMethod *from_oadate;
5013 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5015 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5016 g_assert (from_oadate);
5018 mono_mb_emit_ldarg (mb, argnum);
5019 mono_mb_emit_ldloc (mb, conv_arg);
5020 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5021 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5026 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5027 klass->blittable || klass->enumtype)
5031 /* dst = argument */
5032 mono_mb_emit_ldarg (mb, argnum);
5033 mono_mb_emit_stloc (mb, 1);
5035 mono_mb_emit_ldloc (mb, 1);
5036 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5038 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5039 /* src = tmp_locals [i] */
5040 mono_mb_emit_ldloc (mb, conv_arg);
5041 mono_mb_emit_stloc (mb, 0);
5043 /* emit valuetype conversion code */
5044 emit_struct_conv (mb, klass, TRUE);
5048 emit_struct_free (mb, klass, conv_arg);
5051 mono_mb_patch_branch (mb, pos);
5054 case MARSHAL_ACTION_CONV_RESULT:
5055 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5057 mono_mb_emit_stloc (mb, 3);
5061 /* load pointer to returned value type */
5062 g_assert (m->vtaddr_var);
5063 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5064 /* store the address of the source into local variable 0 */
5065 mono_mb_emit_stloc (mb, 0);
5067 mono_mb_emit_ldloc_addr (mb, 3);
5068 mono_mb_emit_stloc (mb, 1);
5070 /* emit valuetype conversion code */
5071 emit_struct_conv (mb, klass, TRUE);
5074 case MARSHAL_ACTION_MANAGED_CONV_IN:
5075 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5076 klass->blittable || klass->enumtype) {
5081 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5083 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5087 mono_mb_emit_ldarg (mb, argnum);
5089 mono_mb_emit_ldarg_addr (mb, argnum);
5090 mono_mb_emit_stloc (mb, 0);
5093 mono_mb_emit_ldloc (mb, 0);
5094 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5097 mono_mb_emit_ldloc_addr (mb, conv_arg);
5098 mono_mb_emit_stloc (mb, 1);
5100 /* emit valuetype conversion code */
5101 emit_struct_conv (mb, klass, TRUE);
5104 mono_mb_patch_branch (mb, pos);
5107 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5108 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5109 klass->blittable || klass->enumtype) {
5113 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5116 /* Check for null */
5117 mono_mb_emit_ldarg (mb, argnum);
5118 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5121 mono_mb_emit_ldloc_addr (mb, conv_arg);
5122 mono_mb_emit_stloc (mb, 0);
5125 mono_mb_emit_ldarg (mb, argnum);
5126 mono_mb_emit_stloc (mb, 1);
5128 /* emit valuetype conversion code */
5129 emit_struct_conv (mb, klass, FALSE);
5131 mono_mb_patch_branch (mb, pos2);
5134 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5135 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5136 klass->blittable || klass->enumtype) {
5137 mono_mb_emit_stloc (mb, 3);
5142 /* load pointer to returned value type */
5143 g_assert (m->vtaddr_var);
5144 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5146 /* store the address of the source into local variable 0 */
5147 mono_mb_emit_stloc (mb, 0);
5148 /* allocate space for the native struct and
5149 * store the address into dst_ptr */
5150 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5151 m->retobj_class = klass;
5152 g_assert (m->retobj_var);
5153 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5154 mono_mb_emit_byte (mb, CEE_CONV_I);
5155 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5156 mono_mb_emit_stloc (mb, 1);
5157 mono_mb_emit_ldloc (mb, 1);
5158 mono_mb_emit_stloc (mb, m->retobj_var);
5160 /* emit valuetype conversion code */
5161 emit_struct_conv (mb, klass, FALSE);
5165 g_assert_not_reached ();
5172 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5173 MonoMarshalSpec *spec,
5174 int conv_arg, MonoType **conv_arg_type,
5175 MarshalAction action)
5179 case MARSHAL_ACTION_CONV_IN:
5180 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5182 case MARSHAL_ACTION_MANAGED_CONV_IN:
5183 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5187 MonoMethodBuilder *mb = m->mb;
5188 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5189 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5193 case MARSHAL_ACTION_CONV_IN:
5194 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5195 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5198 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5201 mono_mb_emit_ldarg (mb, argnum);
5202 mono_mb_emit_byte (mb, CEE_LDIND_I);
5204 mono_mb_emit_ldarg (mb, argnum);
5207 if (conv == MONO_MARSHAL_CONV_INVALID) {
5208 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5209 mono_mb_emit_exception_marshal_directive (mb, msg);
5211 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5213 mono_mb_emit_stloc (mb, conv_arg);
5217 case MARSHAL_ACTION_CONV_OUT:
5218 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5219 if (conv == MONO_MARSHAL_CONV_INVALID) {
5220 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5221 mono_mb_emit_exception_marshal_directive (mb, msg);
5225 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5226 static MonoMethod *m;
5229 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5234 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5235 mono_mb_emit_exception_marshal_directive (mb, msg);
5240 * Have to allocate a new string with the same length as the original, and
5241 * copy the contents of the buffer pointed to by CONV_ARG into it.
5243 g_assert (t->byref);
5244 mono_mb_emit_ldarg (mb, argnum);
5245 mono_mb_emit_ldloc (mb, conv_arg);
5246 mono_mb_emit_ldarg (mb, argnum);
5247 mono_mb_emit_byte (mb, CEE_LDIND_I);
5248 mono_mb_emit_managed_call (mb, m, NULL);
5249 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5250 mono_mb_emit_byte (mb, CEE_STIND_REF);
5251 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5253 mono_mb_emit_ldarg (mb, argnum);
5254 mono_mb_emit_ldloc (mb, conv_arg);
5255 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5256 mono_mb_emit_byte (mb, stind_op);
5261 mono_mb_emit_ldloc (mb, conv_arg);
5262 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5263 mono_mb_emit_icall (mb, mono_free_bstr);
5265 mono_mb_emit_icall (mb, mono_marshal_free);
5269 case MARSHAL_ACTION_PUSH:
5270 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5271 mono_mb_emit_ldloc_addr (mb, conv_arg);
5273 mono_mb_emit_ldloc (mb, conv_arg);
5276 case MARSHAL_ACTION_CONV_RESULT:
5277 mono_mb_emit_stloc (mb, 0);
5279 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5280 if (conv == MONO_MARSHAL_CONV_INVALID) {
5281 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5282 mono_mb_emit_exception_marshal_directive (mb, msg);
5286 mono_mb_emit_ldloc (mb, 0);
5287 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5288 mono_mb_emit_stloc (mb, 3);
5290 /* free the string */
5291 mono_mb_emit_ldloc (mb, 0);
5292 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5293 mono_mb_emit_icall (mb, mono_free_bstr);
5295 mono_mb_emit_icall (mb, mono_marshal_free);
5298 case MARSHAL_ACTION_MANAGED_CONV_IN:
5299 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5301 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5304 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5308 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5309 if (conv == MONO_MARSHAL_CONV_INVALID) {
5310 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5311 mono_mb_emit_exception_marshal_directive (mb, msg);
5315 mono_mb_emit_ldarg (mb, argnum);
5317 mono_mb_emit_byte (mb, CEE_LDIND_I);
5318 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5319 mono_mb_emit_stloc (mb, conv_arg);
5322 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5326 mono_mb_emit_ldarg (mb, argnum);
5327 mono_mb_emit_ldloc (mb, conv_arg);
5328 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5329 mono_mb_emit_byte (mb, stind_op);
5334 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5335 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5336 /* We need to make a copy so the caller is able to free it */
5337 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5339 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5340 mono_mb_emit_stloc (mb, 3);
5344 g_assert_not_reached ();
5352 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5353 MonoMarshalSpec *spec, int conv_arg,
5354 MonoType **conv_arg_type, MarshalAction action)
5357 if (action == MARSHAL_ACTION_CONV_IN)
5358 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5360 MonoMethodBuilder *mb = m->mb;
5363 case MARSHAL_ACTION_CONV_IN: {
5364 MonoType *intptr_type;
5365 int dar_release_slot, pos;
5367 intptr_type = &mono_defaults.int_class->byval_arg;
5368 conv_arg = mono_mb_add_local (mb, intptr_type);
5369 *conv_arg_type = intptr_type;
5371 if (!sh_dangerous_add_ref)
5372 init_safe_handle ();
5374 mono_mb_emit_ldarg (mb, argnum);
5375 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5376 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5378 mono_mb_patch_branch (mb, pos);
5381 * My tests in show that ref SafeHandles are not really
5382 * passed as ref objects. Instead a NULL is passed as the
5385 mono_mb_emit_icon (mb, 0);
5386 mono_mb_emit_stloc (mb, conv_arg);
5390 /* Create local to hold the ref parameter to DangerousAddRef */
5391 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5393 /* set release = false; */
5394 mono_mb_emit_icon (mb, 0);
5395 mono_mb_emit_stloc (mb, dar_release_slot);
5397 /* safehandle.DangerousAddRef (ref release) */
5398 mono_mb_emit_ldarg (mb, argnum);
5399 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5400 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5402 /* Pull the handle field from SafeHandle */
5403 mono_mb_emit_ldarg (mb, argnum);
5404 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5405 mono_mb_emit_byte (mb, CEE_LDIND_I);
5406 mono_mb_emit_stloc (mb, conv_arg);
5411 case MARSHAL_ACTION_PUSH:
5413 mono_mb_emit_ldloc_addr (mb, conv_arg);
5415 mono_mb_emit_ldloc (mb, conv_arg);
5418 case MARSHAL_ACTION_CONV_OUT: {
5419 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5420 int dar_release_slot = conv_arg + 1;
5423 if (!sh_dangerous_release)
5424 init_safe_handle ();
5430 * My tests indicate that ref SafeHandles parameters are not actually
5431 * passed by ref, but instead a new Handle is created regardless of
5432 * whether a change happens in the unmanaged side.
5434 * Also, the Handle is created before calling into unmanaged code,
5435 * but we do not support that mechanism (getting to the original
5436 * handle) and it makes no difference where we create this
5438 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5440 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5443 /* refval = new SafeHandleDerived ()*/
5444 mono_mb_emit_ldarg (mb, argnum);
5445 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5446 mono_mb_emit_byte (mb, CEE_STIND_REF);
5448 /* refval.handle = returned_handle */
5449 mono_mb_emit_ldarg (mb, argnum);
5450 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5451 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5452 mono_mb_emit_ldloc (mb, conv_arg);
5453 mono_mb_emit_byte (mb, CEE_STIND_I);
5455 mono_mb_emit_ldloc (mb, dar_release_slot);
5456 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5457 mono_mb_emit_ldarg (mb, argnum);
5458 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5459 mono_mb_patch_branch (mb, label_next);
5464 case MARSHAL_ACTION_CONV_RESULT: {
5465 MonoMethod *ctor = NULL;
5466 int intptr_handle_slot;
5468 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5469 mono_mb_emit_byte (mb, CEE_POP);
5470 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5474 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5476 mono_mb_emit_byte (mb, CEE_POP);
5477 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5480 /* Store the IntPtr results into a local */
5481 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5482 mono_mb_emit_stloc (mb, intptr_handle_slot);
5484 /* Create return value */
5485 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5486 mono_mb_emit_stloc (mb, 3);
5488 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5489 mono_mb_emit_ldloc (mb, 3);
5490 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5491 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5492 mono_mb_emit_byte (mb, CEE_STIND_I);
5496 case MARSHAL_ACTION_MANAGED_CONV_IN:
5497 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5500 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5501 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5504 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5505 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5508 printf ("Unhandled case for MarshalAction: %d\n", action);
5516 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5517 MonoMarshalSpec *spec, int conv_arg,
5518 MonoType **conv_arg_type, MarshalAction action)
5521 if (action == MARSHAL_ACTION_CONV_IN)
5522 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5524 MonoMethodBuilder *mb = m->mb;
5527 case MARSHAL_ACTION_CONV_IN: {
5528 MonoType *intptr_type;
5530 intptr_type = &mono_defaults.int_class->byval_arg;
5531 conv_arg = mono_mb_add_local (mb, intptr_type);
5532 *conv_arg_type = intptr_type;
5535 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5536 mono_mb_emit_exception_marshal_directive (mb, msg);
5539 mono_mb_emit_ldarg_addr (mb, argnum);
5540 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5541 mono_mb_emit_byte (mb, CEE_ADD);
5542 mono_mb_emit_byte (mb, CEE_LDIND_I);
5543 mono_mb_emit_stloc (mb, conv_arg);
5547 case MARSHAL_ACTION_PUSH:
5548 mono_mb_emit_ldloc (mb, conv_arg);
5551 case MARSHAL_ACTION_CONV_OUT: {
5552 /* no resource release required */
5556 case MARSHAL_ACTION_CONV_RESULT: {
5557 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5558 mono_mb_emit_exception_marshal_directive (mb, msg);
5562 case MARSHAL_ACTION_MANAGED_CONV_IN:
5563 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5566 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5567 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5570 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5571 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5574 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5582 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5583 MonoMarshalSpec *spec,
5584 int conv_arg, MonoType **conv_arg_type,
5585 MarshalAction action)
5588 if (action == MARSHAL_ACTION_CONV_IN)
5589 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5591 MonoMethodBuilder *mb = m->mb;
5592 MonoClass *klass = mono_class_from_mono_type (t);
5596 case MARSHAL_ACTION_CONV_IN:
5597 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5598 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5600 m->orig_conv_args [argnum] = 0;
5602 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5603 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5604 mono_mb_emit_exception_marshal_directive (mb, msg);
5608 if (klass->delegate) {
5610 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5611 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5612 mono_mb_emit_exception_marshal_directive (mb, msg);
5614 mono_mb_emit_byte (mb, CEE_LDNULL);
5615 mono_mb_emit_stloc (mb, conv_arg);
5617 mono_mb_emit_ldarg (mb, argnum);
5618 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5619 mono_mb_emit_stloc (mb, conv_arg);
5621 } else if (klass == mono_defaults.stringbuilder_class) {
5622 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5623 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5627 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5628 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5629 mono_mb_emit_exception_marshal_directive (mb, msg);
5635 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5638 if (conv == MONO_MARSHAL_CONV_INVALID) {
5639 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5640 mono_mb_emit_exception_marshal_directive (mb, msg);
5644 mono_mb_emit_ldarg (mb, argnum);
5646 mono_mb_emit_byte (mb, CEE_LDIND_I);
5648 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5649 mono_mb_emit_stloc (mb, conv_arg);
5650 } else if (klass->blittable) {
5651 mono_mb_emit_byte (mb, CEE_LDNULL);
5652 mono_mb_emit_stloc (mb, conv_arg);
5654 mono_mb_emit_ldarg (mb, argnum);
5655 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5657 mono_mb_emit_ldarg (mb, argnum);
5658 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5659 mono_mb_emit_stloc (mb, conv_arg);
5661 mono_mb_patch_branch (mb, pos);
5664 mono_mb_emit_byte (mb, CEE_LDNULL);
5665 mono_mb_emit_stloc (mb, conv_arg);
5668 /* we dont need any conversions for out parameters */
5669 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5672 mono_mb_emit_ldarg (mb, argnum);
5673 mono_mb_emit_byte (mb, CEE_LDIND_I);
5676 mono_mb_emit_ldarg (mb, argnum);
5677 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5678 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5681 /* store the address of the source into local variable 0 */
5682 mono_mb_emit_stloc (mb, 0);
5683 mono_mb_emit_ldloc (mb, 0);
5684 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5686 /* allocate space for the native struct and store the address */
5687 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5688 mono_mb_emit_byte (mb, CEE_PREFIX1);
5689 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5690 mono_mb_emit_stloc (mb, conv_arg);
5693 /* Need to store the original buffer so we can free it later */
5694 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5695 mono_mb_emit_ldloc (mb, conv_arg);
5696 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5699 /* set the src_ptr */
5700 mono_mb_emit_ldloc (mb, 0);
5701 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5702 mono_mb_emit_stloc (mb, 0);
5705 mono_mb_emit_ldloc (mb, conv_arg);
5706 mono_mb_emit_stloc (mb, 1);
5708 /* emit valuetype conversion code */
5709 emit_struct_conv (mb, klass, FALSE);
5711 mono_mb_patch_branch (mb, pos);
5715 case MARSHAL_ACTION_CONV_OUT:
5716 if (klass == mono_defaults.stringbuilder_class) {
5718 MonoMarshalNative encoding;
5719 MonoMarshalConv conv;
5721 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5722 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5724 g_assert (encoding != -1);
5727 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5731 mono_mb_emit_ldarg (mb, argnum);
5732 mono_mb_emit_ldloc (mb, conv_arg);
5735 case MONO_NATIVE_LPWSTR:
5736 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5738 case MONO_NATIVE_LPSTR:
5739 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5741 case MONO_NATIVE_UTF8STR:
5742 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5745 g_assert_not_reached ();
5748 mono_mb_emit_byte (mb, CEE_STIND_REF);
5750 mono_mb_emit_ldarg (mb, argnum);
5751 mono_mb_emit_ldloc (mb, conv_arg);
5753 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5757 mono_mb_emit_ldloc (mb, conv_arg);
5758 mono_mb_emit_icall (mb, mono_marshal_free);
5763 if (klass->delegate) {
5765 mono_mb_emit_ldarg (mb, argnum);
5766 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5767 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5768 mono_mb_emit_ldloc (mb, conv_arg);
5769 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5770 mono_mb_emit_byte (mb, CEE_STIND_REF);
5775 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5776 /* allocate a new object */
5777 mono_mb_emit_ldarg (mb, argnum);
5778 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5779 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5780 mono_mb_emit_byte (mb, CEE_STIND_REF);
5783 /* dst = *argument */
5784 mono_mb_emit_ldarg (mb, argnum);
5787 mono_mb_emit_byte (mb, CEE_LDIND_I);
5789 mono_mb_emit_stloc (mb, 1);
5791 mono_mb_emit_ldloc (mb, 1);
5792 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5794 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5795 mono_mb_emit_ldloc (mb, 1);
5796 mono_mb_emit_icon (mb, sizeof (MonoObject));
5797 mono_mb_emit_byte (mb, CEE_ADD);
5798 mono_mb_emit_stloc (mb, 1);
5800 /* src = tmp_locals [i] */
5801 mono_mb_emit_ldloc (mb, conv_arg);
5802 mono_mb_emit_stloc (mb, 0);
5804 /* emit valuetype conversion code */
5805 emit_struct_conv (mb, klass, TRUE);
5807 /* Free the structure returned by the native code */
5808 emit_struct_free (mb, klass, conv_arg);
5810 if (m->orig_conv_args [argnum]) {
5812 * If the native function changed the pointer, then free
5813 * the original structure plus the new pointer.
5815 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5816 mono_mb_emit_ldloc (mb, conv_arg);
5817 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5819 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5820 g_assert (m->orig_conv_args [argnum]);
5822 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5825 mono_mb_emit_ldloc (mb, conv_arg);
5826 mono_mb_emit_icall (mb, mono_marshal_free);
5828 mono_mb_patch_branch (mb, pos2);
5832 /* Free the original structure passed to native code */
5833 emit_struct_free (mb, klass, conv_arg);
5835 mono_mb_patch_branch (mb, pos);
5838 case MARSHAL_ACTION_PUSH:
5840 mono_mb_emit_ldloc_addr (mb, conv_arg);
5842 mono_mb_emit_ldloc (mb, conv_arg);
5845 case MARSHAL_ACTION_CONV_RESULT:
5846 if (klass->delegate) {
5847 g_assert (!t->byref);
5848 mono_mb_emit_stloc (mb, 0);
5849 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5850 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5851 mono_mb_emit_ldloc (mb, 0);
5852 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5853 mono_mb_emit_stloc (mb, 3);
5854 } else if (klass == mono_defaults.stringbuilder_class){
5858 mono_mb_emit_stloc (mb, 0);
5860 /* Make a copy since emit_conv modifies local 0 */
5861 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5862 mono_mb_emit_ldloc (mb, 0);
5863 mono_mb_emit_stloc (mb, loc);
5865 mono_mb_emit_byte (mb, CEE_LDNULL);
5866 mono_mb_emit_stloc (mb, 3);
5868 mono_mb_emit_ldloc (mb, 0);
5869 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5871 /* allocate result object */
5873 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5874 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5875 mono_mb_emit_stloc (mb, 3);
5879 mono_mb_emit_ldloc (mb, 3);
5880 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5881 mono_mb_emit_stloc (mb, 1);
5883 /* emit conversion code */
5884 emit_struct_conv (mb, klass, TRUE);
5886 emit_struct_free (mb, klass, loc);
5888 /* Free the pointer allocated by unmanaged code */
5889 mono_mb_emit_ldloc (mb, loc);
5890 mono_mb_emit_icall (mb, mono_marshal_free);
5891 mono_mb_patch_branch (mb, pos);
5895 case MARSHAL_ACTION_MANAGED_CONV_IN:
5896 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5898 if (klass->delegate) {
5899 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5900 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5901 mono_mb_emit_ldarg (mb, argnum);
5903 mono_mb_emit_byte (mb, CEE_LDIND_I);
5904 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5905 mono_mb_emit_stloc (mb, conv_arg);
5909 if (klass == mono_defaults.stringbuilder_class) {
5910 MonoMarshalNative encoding;
5912 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5915 g_assert (encoding == MONO_NATIVE_LPSTR || encoding == MONO_NATIVE_UTF8STR);
5917 g_assert (!t->byref);
5918 g_assert (encoding != -1);
5920 mono_mb_emit_ldarg (mb, argnum);
5921 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5922 mono_mb_emit_stloc (mb, conv_arg);
5926 /* The class can not have an automatic layout */
5927 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5928 mono_mb_emit_auto_layout_exception (mb, klass);
5932 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5933 mono_mb_emit_byte (mb, CEE_LDNULL);
5934 mono_mb_emit_stloc (mb, conv_arg);
5939 mono_mb_emit_ldarg (mb, argnum);
5943 /* Check for NULL and raise an exception */
5944 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5946 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5948 mono_mb_patch_branch (mb, pos2);
5949 mono_mb_emit_ldarg (mb, argnum);
5950 mono_mb_emit_byte (mb, CEE_LDIND_I);
5953 mono_mb_emit_stloc (mb, 0);
5955 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5956 mono_mb_emit_stloc (mb, conv_arg);
5958 mono_mb_emit_ldloc (mb, 0);
5959 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5961 /* Create and set dst */
5962 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5963 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5964 mono_mb_emit_stloc (mb, conv_arg);
5965 mono_mb_emit_ldloc (mb, conv_arg);
5966 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5967 mono_mb_emit_stloc (mb, 1);
5969 /* emit valuetype conversion code */
5970 emit_struct_conv (mb, klass, TRUE);
5972 mono_mb_patch_branch (mb, pos);
5975 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5976 if (klass->delegate) {
5979 mono_mb_emit_ldarg (mb, argnum);
5980 mono_mb_emit_ldloc (mb, conv_arg);
5981 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5982 mono_mb_emit_byte (mb, stind_op);
5988 /* Check for null */
5989 mono_mb_emit_ldloc (mb, conv_arg);
5990 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5991 mono_mb_emit_ldarg (mb, argnum);
5992 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5993 mono_mb_emit_byte (mb, CEE_STIND_REF);
5994 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5996 mono_mb_patch_branch (mb, pos);
5999 mono_mb_emit_ldloc (mb, conv_arg);
6000 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6001 mono_mb_emit_stloc (mb, 0);
6003 /* Allocate and set dest */
6004 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6005 mono_mb_emit_byte (mb, CEE_CONV_I);
6006 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6007 mono_mb_emit_stloc (mb, 1);
6009 /* Update argument pointer */
6010 mono_mb_emit_ldarg (mb, argnum);
6011 mono_mb_emit_ldloc (mb, 1);
6012 mono_mb_emit_byte (mb, CEE_STIND_I);
6014 /* emit valuetype conversion code */
6015 emit_struct_conv (mb, klass, FALSE);
6017 mono_mb_patch_branch (mb, pos2);
6018 } else if (klass == mono_defaults.stringbuilder_class) {
6019 // FIXME: What to do here ?
6021 /* byval [Out] marshalling */
6023 /* FIXME: Handle null */
6026 mono_mb_emit_ldloc (mb, conv_arg);
6027 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6028 mono_mb_emit_stloc (mb, 0);
6031 mono_mb_emit_ldarg (mb, argnum);
6032 mono_mb_emit_stloc (mb, 1);
6034 /* emit valuetype conversion code */
6035 emit_struct_conv (mb, klass, FALSE);
6039 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6040 if (klass->delegate) {
6041 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6042 mono_mb_emit_stloc (mb, 3);
6046 /* The class can not have an automatic layout */
6047 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6048 mono_mb_emit_auto_layout_exception (mb, klass);
6052 mono_mb_emit_stloc (mb, 0);
6053 /* Check for null */
6054 mono_mb_emit_ldloc (mb, 0);
6055 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6056 mono_mb_emit_byte (mb, CEE_LDNULL);
6057 mono_mb_emit_stloc (mb, 3);
6058 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6060 mono_mb_patch_branch (mb, pos);
6063 mono_mb_emit_ldloc (mb, 0);
6064 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6065 mono_mb_emit_stloc (mb, 0);
6067 /* Allocate and set dest */
6068 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6069 mono_mb_emit_byte (mb, CEE_CONV_I);
6070 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6071 mono_mb_emit_byte (mb, CEE_DUP);
6072 mono_mb_emit_stloc (mb, 1);
6073 mono_mb_emit_stloc (mb, 3);
6075 emit_struct_conv (mb, klass, FALSE);
6077 mono_mb_patch_branch (mb, pos2);
6081 g_assert_not_reached ();
6092 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6093 MonoMarshalSpec *spec,
6094 int conv_arg, MonoType **conv_arg_type,
6095 MarshalAction action)
6097 MonoMethodBuilder *mb = m->mb;
6098 static MonoMethod *get_object_for_native_variant = NULL;
6099 static MonoMethod *get_native_variant_for_object = NULL;
6101 if (!get_object_for_native_variant)
6102 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6103 g_assert (get_object_for_native_variant);
6105 if (!get_native_variant_for_object)
6106 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6107 g_assert (get_native_variant_for_object);
6110 case MARSHAL_ACTION_CONV_IN: {
6111 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6114 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6116 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6118 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6121 mono_mb_emit_ldarg (mb, argnum);
6123 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6124 mono_mb_emit_ldloc_addr (mb, conv_arg);
6125 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6129 case MARSHAL_ACTION_CONV_OUT: {
6130 static MonoMethod *variant_clear = NULL;
6133 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6134 g_assert (variant_clear);
6137 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6138 mono_mb_emit_ldarg (mb, argnum);
6139 mono_mb_emit_ldloc_addr (mb, conv_arg);
6140 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6141 mono_mb_emit_byte (mb, CEE_STIND_REF);
6144 mono_mb_emit_ldloc_addr (mb, conv_arg);
6145 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6149 case MARSHAL_ACTION_PUSH:
6151 mono_mb_emit_ldloc_addr (mb, conv_arg);
6153 mono_mb_emit_ldloc (mb, conv_arg);
6156 case MARSHAL_ACTION_CONV_RESULT: {
6157 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6158 mono_mb_emit_exception_marshal_directive (mb, msg);
6162 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6163 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6166 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6168 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6170 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6174 mono_mb_emit_ldarg (mb, argnum);
6176 mono_mb_emit_ldarg_addr (mb, argnum);
6177 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6178 mono_mb_emit_stloc (mb, conv_arg);
6182 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6183 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6184 mono_mb_emit_ldloc (mb, conv_arg);
6185 mono_mb_emit_ldarg (mb, argnum);
6186 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6191 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6192 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6193 mono_mb_emit_exception_marshal_directive (mb, msg);
6198 g_assert_not_reached ();
6204 #endif /* DISABLE_COM */
6205 #endif /* DISABLE_JIT */
6208 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6210 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6211 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6213 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6215 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6227 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6228 MonoMarshalSpec *spec,
6229 int conv_arg, MonoType **conv_arg_type,
6230 MarshalAction action)
6234 case MARSHAL_ACTION_CONV_IN:
6235 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6237 case MARSHAL_ACTION_MANAGED_CONV_IN:
6238 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6242 MonoMethodBuilder *mb = m->mb;
6243 MonoClass *klass = mono_class_from_mono_type (t);
6244 gboolean need_convert, need_free;
6245 MonoMarshalNative encoding;
6247 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6250 case MARSHAL_ACTION_CONV_IN:
6251 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6252 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6254 if (klass->element_class->blittable) {
6255 mono_mb_emit_ldarg (mb, argnum);
6257 mono_mb_emit_byte (mb, CEE_LDIND_I);
6258 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6259 mono_mb_emit_stloc (mb, conv_arg);
6262 guint32 label1, label2, label3;
6263 int index_var, src_var, dest_ptr, esize;
6264 MonoMarshalConv conv;
6265 gboolean is_string = FALSE;
6267 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6269 eklass = klass->element_class;
6271 if (eklass == mono_defaults.string_class) {
6273 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6275 else if (eklass == mono_defaults.stringbuilder_class) {
6277 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6280 conv = MONO_MARSHAL_CONV_INVALID;
6282 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6283 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6284 mono_mb_emit_exception_marshal_directive (mb, msg);
6288 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6289 mono_mb_emit_ldarg (mb, argnum);
6291 mono_mb_emit_byte (mb, CEE_LDIND_I);
6292 mono_mb_emit_stloc (mb, src_var);
6295 mono_mb_emit_ldloc (mb, src_var);
6296 mono_mb_emit_stloc (mb, conv_arg);
6297 mono_mb_emit_ldloc (mb, src_var);
6298 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6301 esize = sizeof (gpointer);
6302 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6303 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6305 esize = mono_class_native_size (eklass, NULL);
6307 /* allocate space for the native struct and store the address */
6308 mono_mb_emit_icon (mb, esize);
6309 mono_mb_emit_ldloc (mb, src_var);
6310 mono_mb_emit_byte (mb, CEE_LDLEN);
6312 if (eklass == mono_defaults.string_class) {
6313 /* Make the array bigger for the terminating null */
6314 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6315 mono_mb_emit_byte (mb, CEE_ADD);
6317 mono_mb_emit_byte (mb, CEE_MUL);
6318 mono_mb_emit_byte (mb, CEE_PREFIX1);
6319 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6320 mono_mb_emit_stloc (mb, conv_arg);
6322 mono_mb_emit_ldloc (mb, conv_arg);
6323 mono_mb_emit_stloc (mb, dest_ptr);
6325 /* Emit marshalling loop */
6326 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6327 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6328 mono_mb_emit_stloc (mb, index_var);
6329 label2 = mono_mb_get_label (mb);
6330 mono_mb_emit_ldloc (mb, index_var);
6331 mono_mb_emit_ldloc (mb, src_var);
6332 mono_mb_emit_byte (mb, CEE_LDLEN);
6333 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6335 /* Emit marshalling code */
6339 mono_mb_emit_ldloc (mb, dest_ptr);
6340 mono_mb_emit_ldloc (mb, src_var);
6341 mono_mb_emit_ldloc (mb, index_var);
6342 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6343 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6344 mono_mb_emit_byte (mb, stind_op);
6346 /* set the src_ptr */
6347 mono_mb_emit_ldloc (mb, src_var);
6348 mono_mb_emit_ldloc (mb, index_var);
6349 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6350 mono_mb_emit_stloc (mb, 0);
6353 mono_mb_emit_ldloc (mb, dest_ptr);
6354 mono_mb_emit_stloc (mb, 1);
6356 /* emit valuetype conversion code */
6357 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6360 mono_mb_emit_add_to_local (mb, index_var, 1);
6361 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6363 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6365 mono_mb_patch_branch (mb, label3);
6367 if (eklass == mono_defaults.string_class) {
6368 /* Null terminate */
6369 mono_mb_emit_ldloc (mb, dest_ptr);
6370 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6371 mono_mb_emit_byte (mb, CEE_STIND_REF);
6374 mono_mb_patch_branch (mb, label1);
6379 case MARSHAL_ACTION_CONV_OUT:
6380 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6381 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);
6382 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6385 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6386 int param_num = spec->data.array_data.param_num;
6387 MonoType *param_type;
6389 param_type = m->sig->params [param_num];
6391 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6392 char *msg = g_strdup ("Not implemented.");
6393 mono_mb_emit_exception_marshal_directive (mb, msg);
6398 mono_mb_emit_ldarg (mb, argnum);
6400 /* Create the managed array */
6401 mono_mb_emit_ldarg (mb, param_num);
6402 if (m->sig->params [param_num]->byref)
6403 // FIXME: Support other types
6404 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6405 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6406 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6407 /* Store into argument */
6408 mono_mb_emit_byte (mb, CEE_STIND_REF);
6412 if (need_convert || need_free) {
6413 /* FIXME: Optimize blittable case */
6415 guint32 label1, label2, label3;
6416 int index_var, src_ptr, loc, esize;
6418 eklass = klass->element_class;
6419 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6420 esize = sizeof (gpointer);
6421 else if (eklass == mono_defaults.char_class)
6422 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6424 esize = mono_class_native_size (eklass, NULL);
6425 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6426 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6429 mono_mb_emit_ldarg (mb, argnum);
6431 mono_mb_emit_byte (mb, CEE_LDIND_I);
6432 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6434 mono_mb_emit_ldloc (mb, conv_arg);
6435 mono_mb_emit_stloc (mb, src_ptr);
6437 /* Emit marshalling loop */
6438 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6439 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6440 mono_mb_emit_stloc (mb, index_var);
6441 label2 = mono_mb_get_label (mb);
6442 mono_mb_emit_ldloc (mb, index_var);
6443 mono_mb_emit_ldarg (mb, argnum);
6445 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6446 mono_mb_emit_byte (mb, CEE_LDLEN);
6447 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6449 /* Emit marshalling code */
6451 if (eklass == mono_defaults.stringbuilder_class) {
6452 gboolean need_free2;
6453 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6455 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6458 mono_mb_emit_ldarg (mb, argnum);
6460 mono_mb_emit_byte (mb, CEE_LDIND_I);
6461 mono_mb_emit_ldloc (mb, index_var);
6462 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6465 mono_mb_emit_ldloc (mb, src_ptr);
6466 mono_mb_emit_byte (mb, CEE_LDIND_I);
6468 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6472 mono_mb_emit_ldloc (mb, src_ptr);
6473 mono_mb_emit_byte (mb, CEE_LDIND_I);
6475 mono_mb_emit_icall (mb, mono_marshal_free);
6478 else if (eklass == mono_defaults.string_class) {
6481 mono_mb_emit_ldloc (mb, src_ptr);
6482 mono_mb_emit_byte (mb, CEE_LDIND_I);
6484 mono_mb_emit_icall (mb, mono_marshal_free);
6489 /* set the src_ptr */
6490 mono_mb_emit_ldloc (mb, src_ptr);
6491 mono_mb_emit_stloc (mb, 0);
6494 mono_mb_emit_ldarg (mb, argnum);
6496 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6497 mono_mb_emit_ldloc (mb, index_var);
6498 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6499 mono_mb_emit_stloc (mb, 1);
6501 /* emit valuetype conversion code */
6502 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6506 mono_mb_emit_ldloc (mb, src_ptr);
6507 mono_mb_emit_stloc (mb, loc);
6508 mono_mb_emit_ldloc (mb, loc);
6510 emit_struct_free (mb, eklass, loc);
6514 mono_mb_emit_add_to_local (mb, index_var, 1);
6515 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6517 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6519 mono_mb_patch_branch (mb, label1);
6520 mono_mb_patch_branch (mb, label3);
6523 if (klass->element_class->blittable) {
6524 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6526 mono_mb_emit_ldarg (mb, argnum);
6528 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6529 mono_mb_emit_ldloc (mb, conv_arg);
6530 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6535 case MARSHAL_ACTION_PUSH:
6537 mono_mb_emit_ldloc_addr (mb, conv_arg);
6539 mono_mb_emit_ldloc (mb, conv_arg);
6542 case MARSHAL_ACTION_CONV_RESULT:
6543 /* fixme: we need conversions here */
6544 mono_mb_emit_stloc (mb, 3);
6547 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6549 guint32 label1, label2, label3;
6550 int index_var, src_ptr, esize, param_num, num_elem;
6551 MonoMarshalConv conv;
6552 gboolean is_string = FALSE;
6554 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6555 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6558 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6559 mono_mb_emit_exception_marshal_directive (mb, msg);
6563 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6564 mono_mb_emit_exception_marshal_directive (mb, msg);
6567 if (spec->native != MONO_NATIVE_LPARRAY) {
6568 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6569 mono_mb_emit_exception_marshal_directive (mb, msg);
6573 /* FIXME: t is from the method which is wrapped, not the delegate type */
6574 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6576 param_num = spec->data.array_data.param_num;
6577 num_elem = spec->data.array_data.num_elem;
6578 if (spec->data.array_data.elem_mult == 0)
6579 /* param_num is not specified */
6582 if (param_num == -1) {
6583 if (num_elem <= 0) {
6584 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6585 mono_mb_emit_exception_marshal_directive (mb, msg);
6590 /* FIXME: Optimize blittable case */
6592 eklass = klass->element_class;
6593 if (eklass == mono_defaults.string_class) {
6595 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6597 else if (eklass == mono_defaults.stringbuilder_class) {
6599 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6602 conv = MONO_MARSHAL_CONV_INVALID;
6604 mono_marshal_load_type_info (eklass);
6607 esize = sizeof (gpointer);
6609 esize = mono_class_native_size (eklass, NULL);
6610 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6612 mono_mb_emit_byte (mb, CEE_LDNULL);
6613 mono_mb_emit_stloc (mb, conv_arg);
6615 /* Check param index */
6616 if (param_num != -1) {
6617 if (param_num >= m->sig->param_count) {
6618 char *msg = g_strdup ("Array size control parameter index is out of range.");
6619 mono_mb_emit_exception_marshal_directive (mb, msg);
6622 switch (m->sig->params [param_num]->type) {
6635 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6636 mono_mb_emit_exception_marshal_directive (mb, msg);
6643 mono_mb_emit_ldarg (mb, argnum);
6644 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6646 mono_mb_emit_ldarg (mb, argnum);
6647 mono_mb_emit_stloc (mb, src_ptr);
6649 /* Create managed array */
6651 * The LPArray marshalling spec says that sometimes param_num starts
6652 * from 1, sometimes it starts from 0. But MS seems to allways start
6656 if (param_num == -1) {
6657 mono_mb_emit_icon (mb, num_elem);
6659 mono_mb_emit_ldarg (mb, param_num);
6661 mono_mb_emit_icon (mb, num_elem);
6662 mono_mb_emit_byte (mb, CEE_ADD);
6664 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6667 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6668 mono_mb_emit_stloc (mb, conv_arg);
6670 if (eklass->blittable) {
6671 mono_mb_emit_ldloc (mb, conv_arg);
6672 mono_mb_emit_byte (mb, CEE_CONV_I);
6673 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6674 mono_mb_emit_byte (mb, CEE_ADD);
6675 mono_mb_emit_ldarg (mb, argnum);
6676 mono_mb_emit_ldloc (mb, conv_arg);
6677 mono_mb_emit_byte (mb, CEE_LDLEN);
6678 mono_mb_emit_icon (mb, esize);
6679 mono_mb_emit_byte (mb, CEE_MUL);
6680 mono_mb_emit_byte (mb, CEE_PREFIX1);
6681 mono_mb_emit_byte (mb, CEE_CPBLK);
6682 mono_mb_patch_branch (mb, label1);
6686 /* Emit marshalling loop */
6687 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6688 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6689 mono_mb_emit_stloc (mb, index_var);
6690 label2 = mono_mb_get_label (mb);
6691 mono_mb_emit_ldloc (mb, index_var);
6692 mono_mb_emit_ldloc (mb, conv_arg);
6693 mono_mb_emit_byte (mb, CEE_LDLEN);
6694 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6696 /* Emit marshalling code */
6698 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6700 mono_mb_emit_ldloc (mb, conv_arg);
6701 mono_mb_emit_ldloc (mb, index_var);
6703 mono_mb_emit_ldloc (mb, src_ptr);
6704 mono_mb_emit_byte (mb, CEE_LDIND_I);
6706 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6707 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6710 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6711 mono_mb_emit_exception_marshal_directive (mb, msg);
6715 mono_mb_emit_add_to_local (mb, index_var, 1);
6716 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6718 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6720 mono_mb_patch_branch (mb, label1);
6721 mono_mb_patch_branch (mb, label3);
6725 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6727 guint32 label1, label2, label3;
6728 int index_var, dest_ptr, esize, param_num, num_elem;
6729 MonoMarshalConv conv;
6730 gboolean is_string = FALSE;
6733 /* Already handled in CONV_IN */
6736 /* These are already checked in CONV_IN */
6737 g_assert (!t->byref);
6738 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6739 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6741 param_num = spec->data.array_data.param_num;
6742 num_elem = spec->data.array_data.num_elem;
6744 if (spec->data.array_data.elem_mult == 0)
6745 /* param_num is not specified */
6748 if (param_num == -1) {
6749 if (num_elem <= 0) {
6750 g_assert_not_reached ();
6754 /* FIXME: Optimize blittable case */
6756 eklass = klass->element_class;
6757 if (eklass == mono_defaults.string_class) {
6759 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6761 else if (eklass == mono_defaults.stringbuilder_class) {
6763 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6766 conv = MONO_MARSHAL_CONV_INVALID;
6768 mono_marshal_load_type_info (eklass);
6771 esize = sizeof (gpointer);
6773 esize = mono_class_native_size (eklass, NULL);
6775 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6778 mono_mb_emit_ldloc (mb, conv_arg);
6779 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6781 mono_mb_emit_ldarg (mb, argnum);
6782 mono_mb_emit_stloc (mb, dest_ptr);
6784 if (eklass->blittable) {
6786 mono_mb_emit_ldarg (mb, argnum);
6788 mono_mb_emit_ldloc (mb, conv_arg);
6789 mono_mb_emit_byte (mb, CEE_CONV_I);
6790 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6791 mono_mb_emit_byte (mb, CEE_ADD);
6793 mono_mb_emit_ldloc (mb, conv_arg);
6794 mono_mb_emit_byte (mb, CEE_LDLEN);
6795 mono_mb_emit_icon (mb, esize);
6796 mono_mb_emit_byte (mb, CEE_MUL);
6797 mono_mb_emit_byte (mb, CEE_PREFIX1);
6798 mono_mb_emit_byte (mb, CEE_CPBLK);
6802 /* Emit marshalling loop */
6803 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6804 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6805 mono_mb_emit_stloc (mb, index_var);
6806 label2 = mono_mb_get_label (mb);
6807 mono_mb_emit_ldloc (mb, index_var);
6808 mono_mb_emit_ldloc (mb, conv_arg);
6809 mono_mb_emit_byte (mb, CEE_LDLEN);
6810 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6812 /* Emit marshalling code */
6815 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6818 mono_mb_emit_ldloc (mb, dest_ptr);
6821 mono_mb_emit_ldloc (mb, conv_arg);
6822 mono_mb_emit_ldloc (mb, index_var);
6824 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6826 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6827 mono_mb_emit_byte (mb, stind_op);
6830 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6831 mono_mb_emit_exception_marshal_directive (mb, msg);
6835 mono_mb_emit_add_to_local (mb, index_var, 1);
6836 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6838 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6840 mono_mb_patch_branch (mb, label1);
6841 mono_mb_patch_branch (mb, label3);
6845 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6847 guint32 label1, label2, label3;
6848 int index_var, src, dest, esize;
6849 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6850 gboolean is_string = FALSE;
6852 g_assert (!t->byref);
6854 eklass = klass->element_class;
6856 mono_marshal_load_type_info (eklass);
6858 if (eklass == mono_defaults.string_class) {
6860 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6863 g_assert_not_reached ();
6867 esize = sizeof (gpointer);
6868 else if (eklass == mono_defaults.char_class)
6869 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6871 esize = mono_class_native_size (eklass, NULL);
6873 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6874 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6876 mono_mb_emit_stloc (mb, src);
6877 mono_mb_emit_ldloc (mb, src);
6878 mono_mb_emit_stloc (mb, 3);
6880 /* Check for null */
6881 mono_mb_emit_ldloc (mb, src);
6882 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6884 /* Allocate native array */
6885 mono_mb_emit_icon (mb, esize);
6886 mono_mb_emit_ldloc (mb, src);
6887 mono_mb_emit_byte (mb, CEE_LDLEN);
6889 if (eklass == mono_defaults.string_class) {
6890 /* Make the array bigger for the terminating null */
6891 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6892 mono_mb_emit_byte (mb, CEE_ADD);
6894 mono_mb_emit_byte (mb, CEE_MUL);
6895 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6896 mono_mb_emit_stloc (mb, dest);
6897 mono_mb_emit_ldloc (mb, dest);
6898 mono_mb_emit_stloc (mb, 3);
6900 /* Emit marshalling loop */
6901 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6902 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6903 mono_mb_emit_stloc (mb, index_var);
6904 label2 = mono_mb_get_label (mb);
6905 mono_mb_emit_ldloc (mb, index_var);
6906 mono_mb_emit_ldloc (mb, src);
6907 mono_mb_emit_byte (mb, CEE_LDLEN);
6908 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6910 /* Emit marshalling code */
6913 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6916 mono_mb_emit_ldloc (mb, dest);
6919 mono_mb_emit_ldloc (mb, src);
6920 mono_mb_emit_ldloc (mb, index_var);
6922 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6924 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6925 mono_mb_emit_byte (mb, stind_op);
6928 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6929 mono_mb_emit_exception_marshal_directive (mb, msg);
6933 mono_mb_emit_add_to_local (mb, index_var, 1);
6934 mono_mb_emit_add_to_local (mb, dest, esize);
6936 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6938 mono_mb_patch_branch (mb, label3);
6939 mono_mb_patch_branch (mb, label1);
6943 g_assert_not_reached ();
6950 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6953 return &mono_defaults.int32_class->byval_arg;
6955 switch (spec->native) {
6956 case MONO_NATIVE_I1:
6957 case MONO_NATIVE_U1:
6958 return &mono_defaults.byte_class->byval_arg;
6959 case MONO_NATIVE_VARIANTBOOL:
6960 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6961 return &mono_defaults.int16_class->byval_arg;
6962 case MONO_NATIVE_BOOLEAN:
6963 return &mono_defaults.int32_class->byval_arg;
6965 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6966 return &mono_defaults.int32_class->byval_arg;
6972 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6974 MonoClass* conv_arg_class = mono_defaults.int32_class;
6976 switch (spec->native) {
6977 case MONO_NATIVE_I1:
6978 case MONO_NATIVE_U1:
6979 conv_arg_class = mono_defaults.byte_class;
6980 if (ldop) *ldop = CEE_LDIND_I1;
6982 case MONO_NATIVE_VARIANTBOOL:
6983 conv_arg_class = mono_defaults.int16_class;
6984 if (ldop) *ldop = CEE_LDIND_I2;
6986 case MONO_NATIVE_BOOLEAN:
6989 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6992 return conv_arg_class;
6996 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6997 MonoMarshalSpec *spec,
6998 int conv_arg, MonoType **conv_arg_type,
6999 MarshalAction action)
7003 case MARSHAL_ACTION_CONV_IN:
7005 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7007 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7010 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7011 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7013 *conv_arg_type = &conv_arg_class->this_arg;
7015 *conv_arg_type = &conv_arg_class->byval_arg;
7021 MonoMethodBuilder *mb = m->mb;
7024 case MARSHAL_ACTION_CONV_IN: {
7025 MonoType *local_type;
7027 guint8 ldc_op = CEE_LDC_I4_1;
7029 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7031 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7033 *conv_arg_type = local_type;
7034 conv_arg = mono_mb_add_local (mb, local_type);
7036 mono_mb_emit_ldarg (mb, argnum);
7038 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7039 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7040 mono_mb_emit_byte (mb, ldc_op);
7041 mono_mb_emit_stloc (mb, conv_arg);
7042 mono_mb_patch_branch (mb, label_false);
7047 case MARSHAL_ACTION_CONV_OUT:
7049 int label_false, label_end;
7053 mono_mb_emit_ldarg (mb, argnum);
7054 mono_mb_emit_ldloc (mb, conv_arg);
7056 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7057 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7059 label_end = mono_mb_emit_branch (mb, CEE_BR);
7060 mono_mb_patch_branch (mb, label_false);
7061 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7062 mono_mb_patch_branch (mb, label_end);
7064 mono_mb_emit_byte (mb, CEE_STIND_I1);
7068 case MARSHAL_ACTION_PUSH:
7070 mono_mb_emit_ldloc_addr (mb, conv_arg);
7072 mono_mb_emit_ldloc (mb, conv_arg);
7074 mono_mb_emit_ldarg (mb, argnum);
7077 case MARSHAL_ACTION_CONV_RESULT:
7078 /* maybe we need to make sure that it fits within 8 bits */
7079 mono_mb_emit_stloc (mb, 3);
7082 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7083 MonoClass* conv_arg_class = mono_defaults.int32_class;
7084 guint8 ldop = CEE_LDIND_I4;
7085 int label_null, label_false;
7087 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7088 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7091 *conv_arg_type = &conv_arg_class->this_arg;
7093 *conv_arg_type = &conv_arg_class->byval_arg;
7096 mono_mb_emit_ldarg (mb, argnum);
7100 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7101 mono_mb_emit_ldarg (mb, argnum);
7102 mono_mb_emit_byte (mb, ldop);
7106 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7107 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7108 mono_mb_emit_stloc (mb, conv_arg);
7109 mono_mb_patch_branch (mb, label_false);
7112 mono_mb_patch_branch (mb, label_null);
7116 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7117 guint8 stop = CEE_STIND_I4;
7118 guint8 ldc_op = CEE_LDC_I4_1;
7119 int label_null,label_false, label_end;;
7124 switch (spec->native) {
7125 case MONO_NATIVE_I1:
7126 case MONO_NATIVE_U1:
7127 stop = CEE_STIND_I1;
7129 case MONO_NATIVE_VARIANTBOOL:
7130 stop = CEE_STIND_I2;
7131 ldc_op = CEE_LDC_I4_M1;
7139 mono_mb_emit_ldarg (mb, argnum);
7140 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7142 mono_mb_emit_ldarg (mb, argnum);
7143 mono_mb_emit_ldloc (mb, conv_arg);
7145 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7146 mono_mb_emit_byte (mb, ldc_op);
7147 label_end = mono_mb_emit_branch (mb, CEE_BR);
7149 mono_mb_patch_branch (mb, label_false);
7150 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7151 mono_mb_patch_branch (mb, label_end);
7153 mono_mb_emit_byte (mb, stop);
7154 mono_mb_patch_branch (mb, label_null);
7159 g_assert_not_reached ();
7166 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7167 MonoMarshalSpec *spec, int conv_arg,
7168 MonoType **conv_arg_type, MarshalAction action)
7171 MonoMethodBuilder *mb = m->mb;
7174 case MARSHAL_ACTION_CONV_IN:
7175 /* MS seems to allow this in some cases, ie. bxc #158 */
7177 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7178 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7179 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7184 case MARSHAL_ACTION_PUSH:
7185 mono_mb_emit_ldarg (mb, argnum);
7188 case MARSHAL_ACTION_CONV_RESULT:
7189 /* no conversions necessary */
7190 mono_mb_emit_stloc (mb, 3);
7201 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7202 MonoMarshalSpec *spec, int conv_arg,
7203 MonoType **conv_arg_type, MarshalAction action)
7206 MonoMethodBuilder *mb = m->mb;
7209 case MARSHAL_ACTION_PUSH:
7210 /* fixme: dont know how to marshal that. We cant simply
7211 * convert it to a one byte UTF8 character, because an
7212 * unicode character may need more that one byte in UTF8 */
7213 mono_mb_emit_ldarg (mb, argnum);
7216 case MARSHAL_ACTION_CONV_RESULT:
7217 /* fixme: we need conversions here */
7218 mono_mb_emit_stloc (mb, 3);
7229 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7230 MonoMarshalSpec *spec, int conv_arg,
7231 MonoType **conv_arg_type, MarshalAction action)
7234 MonoMethodBuilder *mb = m->mb;
7237 case MARSHAL_ACTION_PUSH:
7238 mono_mb_emit_ldarg (mb, argnum);
7241 case MARSHAL_ACTION_CONV_RESULT:
7242 /* no conversions necessary */
7243 mono_mb_emit_stloc (mb, 3);
7254 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7255 MonoMarshalSpec *spec, int conv_arg,
7256 MonoType **conv_arg_type, MarshalAction action)
7258 /* Ensure that we have marshalling info for this param */
7259 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7261 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7262 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7264 if (spec && spec->native == MONO_NATIVE_ASANY)
7265 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7268 case MONO_TYPE_VALUETYPE:
7269 if (t->data.klass == mono_defaults.handleref_class)
7270 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7272 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7273 case MONO_TYPE_STRING:
7274 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7275 case MONO_TYPE_CLASS:
7276 case MONO_TYPE_OBJECT:
7277 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7278 if (spec && spec->native == MONO_NATIVE_STRUCT)
7279 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7282 #if !defined(DISABLE_COM)
7283 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7284 spec->native == MONO_NATIVE_IDISPATCH ||
7285 spec->native == MONO_NATIVE_INTERFACE))
7286 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7287 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7288 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7289 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7290 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7293 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7294 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7295 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7297 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7298 case MONO_TYPE_ARRAY:
7299 case MONO_TYPE_SZARRAY:
7300 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7301 case MONO_TYPE_BOOLEAN:
7302 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7304 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7305 case MONO_TYPE_CHAR:
7306 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7319 case MONO_TYPE_FNPTR:
7320 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7321 case MONO_TYPE_GENERICINST:
7322 if (mono_type_generic_inst_is_valuetype (t))
7323 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7325 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7333 * mono_marshal_emit_native_wrapper:
7334 * @image: the image to use for looking up custom marshallers
7335 * @sig: The signature of the native function
7336 * @piinfo: Marshalling information
7337 * @mspecs: Marshalling information
7338 * @aot: whenever the created method will be compiled by the AOT compiler
7339 * @method: if non-NULL, the pinvoke method to call
7340 * @check_exceptions: Whenever to check for pending exceptions after the native call
7341 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7343 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7346 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)
7348 EmitMarshalContext m;
7349 MonoMethodSignature *csig;
7351 int i, argnum, *tmp_locals;
7352 int type, param_shift = 0;
7353 int coop_gc_stack_dummy, coop_gc_var;
7355 memset (&m, 0, sizeof (m));
7360 /* we copy the signature, so that we can set pinvoke to 0 */
7362 /* The function address is passed as the first argument */
7363 g_assert (!sig->hasthis);
7366 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7374 /* we allocate local for use with emit_struct_conv() */
7375 /* allocate local 0 (pointer) src_ptr */
7376 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7377 /* allocate local 1 (pointer) dst_ptr */
7378 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7379 /* allocate local 2 (boolean) delete_old */
7380 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7382 /* delete_old = FALSE */
7383 mono_mb_emit_icon (mb, 0);
7384 mono_mb_emit_stloc (mb, 2);
7386 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7387 /* allocate local 3 to store the return value */
7388 mono_mb_add_local (mb, sig->ret);
7391 if (mono_threads_is_coop_enabled ()) {
7392 /* local 4, dummy local used to get a stack address for suspend funcs */
7393 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7394 /* local 5, the local to be used when calling the suspend funcs */
7395 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7399 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7401 * ret = method (...);
7403 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7410 if (MONO_TYPE_ISSTRUCT (sig->ret))
7411 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7413 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7414 /* Return type custom marshaling */
7416 * Since we can't determine the return type of the unmanaged function,
7417 * we assume it returns a pointer, and pass that pointer to
7418 * MarshalNativeToManaged.
7420 csig->ret = &mono_defaults.int_class->byval_arg;
7423 /* we first do all conversions */
7424 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7425 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7427 for (i = 0; i < sig->param_count; i ++) {
7428 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7431 // In coop mode need to register blocking state during native call
7432 if (mono_threads_is_coop_enabled ()) {
7433 // Perform an extra, early lookup of the function address, so any exceptions
7434 // potentially resulting from the lookup occur before entering blocking mode.
7435 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7436 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7437 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7438 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7441 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7442 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7443 mono_mb_emit_stloc (mb, coop_gc_var);
7446 /* push all arguments */
7449 mono_mb_emit_byte (mb, CEE_LDARG_0);
7451 for (i = 0; i < sig->param_count; i++) {
7452 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7455 /* call the native method */
7457 mono_mb_emit_byte (mb, CEE_LDARG_0);
7458 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7459 mono_mb_emit_byte (mb, CEE_LDIND_I);
7460 mono_mb_emit_calli (mb, csig);
7461 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7463 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7465 g_assert_not_reached ();
7469 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7470 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7471 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7472 mono_mb_emit_calli (mb, csig);
7474 mono_mb_emit_native_call (mb, csig, func);
7478 /* Set LastError if needed */
7479 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7482 static MonoMethodSignature *get_last_error_sig = NULL;
7483 if (!get_last_error_sig) {
7484 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7485 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7486 get_last_error_sig->pinvoke = 1;
7490 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7491 * clobber its value.
7493 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7494 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7496 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7497 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7498 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7501 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7505 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7506 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7507 mono_class_init (klass);
7508 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7509 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7510 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7511 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7512 mono_mb_emit_stloc (mb, m.vtaddr_var);
7516 /* Unblock before converting the result, since that can involve calls into the runtime */
7517 if (mono_threads_is_coop_enabled ()) {
7518 mono_mb_emit_ldloc (mb, coop_gc_var);
7519 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7520 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7523 /* convert the result */
7524 if (!sig->ret->byref) {
7525 MonoMarshalSpec *spec = mspecs [0];
7526 type = sig->ret->type;
7528 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7529 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7533 case MONO_TYPE_VOID:
7535 case MONO_TYPE_VALUETYPE:
7536 klass = sig->ret->data.klass;
7537 if (klass->enumtype) {
7538 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7541 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7555 case MONO_TYPE_FNPTR:
7556 case MONO_TYPE_STRING:
7557 case MONO_TYPE_CLASS:
7558 case MONO_TYPE_OBJECT:
7559 case MONO_TYPE_BOOLEAN:
7560 case MONO_TYPE_ARRAY:
7561 case MONO_TYPE_SZARRAY:
7562 case MONO_TYPE_CHAR:
7564 case MONO_TYPE_GENERICINST:
7565 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7567 case MONO_TYPE_TYPEDBYREF:
7569 g_warning ("return type 0x%02x unknown", sig->ret->type);
7570 g_assert_not_reached ();
7574 mono_mb_emit_stloc (mb, 3);
7578 * Need to call this after converting the result since MONO_VTADDR needs
7579 * to be adjacent to the call instruction.
7581 if (check_exceptions)
7582 emit_thread_interrupt_checkpoint (mb);
7584 /* we need to convert byref arguments back and free string arrays */
7585 for (i = 0; i < sig->param_count; i++) {
7586 MonoType *t = sig->params [i];
7587 MonoMarshalSpec *spec = mspecs [i + 1];
7589 argnum = i + param_shift;
7591 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7592 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7597 case MONO_TYPE_STRING:
7598 case MONO_TYPE_VALUETYPE:
7599 case MONO_TYPE_CLASS:
7600 case MONO_TYPE_OBJECT:
7601 case MONO_TYPE_SZARRAY:
7602 case MONO_TYPE_BOOLEAN:
7603 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7610 if (!MONO_TYPE_IS_VOID(sig->ret))
7611 mono_mb_emit_ldloc (mb, 3);
7613 mono_mb_emit_byte (mb, CEE_RET);
7615 #endif /* DISABLE_JIT */
7618 * mono_marshal_get_native_wrapper:
7619 * @method: The MonoMethod to wrap.
7620 * @check_exceptions: Whenever to check for pending exceptions
7622 * generates IL code for the pinvoke wrapper (the generated method
7623 * calls the unmanaged code in piinfo->addr)
7626 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7628 MonoMethodSignature *sig, *csig;
7629 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7630 MonoMethodBuilder *mb;
7631 MonoMarshalSpec **mspecs;
7634 gboolean pinvoke = FALSE;
7637 const char *exc_class = "MissingMethodException";
7638 const char *exc_arg = NULL;
7641 g_assert (method != NULL);
7642 g_assert (mono_method_signature (method)->pinvoke);
7644 GHashTable **cache_ptr;
7647 if (check_exceptions)
7648 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7650 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7652 if (check_exceptions)
7653 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7655 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7658 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7660 if ((res = mono_marshal_find_in_cache (cache, method)))
7663 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7664 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7668 return mono_cominterop_get_native_wrapper (method);
7670 g_assert_not_reached ();
7674 sig = mono_method_signature (method);
7676 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7677 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7680 if (!piinfo->addr) {
7682 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7683 exc_arg = "Method contains unsupported native code";
7685 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7687 piinfo->addr = mono_lookup_internal_call (method);
7691 /* hack - redirect certain string constructors to CreateString */
7692 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7693 g_assert (!pinvoke);
7694 g_assert (method->string_ctor);
7695 g_assert (sig->hasthis);
7697 /* CreateString returns a value */
7698 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7699 csig->ret = &mono_defaults.string_class->byval_arg;
7703 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7704 if (!strcmp ("CreateString", res->name) &&
7705 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7708 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7709 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7711 /* create a wrapper to preserve .ctor in stack trace */
7712 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7715 mono_mb_emit_byte (mb, CEE_LDARG_0);
7716 for (i = 1; i <= csig->param_count; i++)
7717 mono_mb_emit_ldarg (mb, i);
7718 mono_mb_emit_managed_call (mb, res, NULL);
7719 mono_mb_emit_byte (mb, CEE_RET);
7722 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7723 info->d.string_ctor.method = method;
7725 /* use native_wrapper_cache because internal calls are looked up there */
7726 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7727 csig->param_count + 1, info, NULL);
7734 /* exception will be thrown */
7735 piinfo->addr = NULL;
7736 g_warning ("cannot find CreateString for .ctor");
7739 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7741 mb->method->save_lmf = 1;
7744 * In AOT mode and embedding scenarios, it is possible that the icall is not
7745 * registered in the runtime doing the AOT compilation.
7747 if (!piinfo->addr && !aot) {
7749 mono_mb_emit_exception (mb, exc_class, exc_arg);
7751 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7752 info->d.managed_to_native.method = method;
7754 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7756 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7757 csig->param_count + 16, info, NULL);
7763 /* internal calls: we simply push all arguments and call the method (no conversions) */
7764 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7766 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7768 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7770 //printf ("%s\n", mono_method_full_name (method, 1));
7772 /* hack - string constructors returns a value */
7773 if (method->string_ctor)
7774 csig->ret = &mono_defaults.string_class->byval_arg;
7778 MonoClass *handle_stack_mark_class;
7779 MonoClass *error_class;
7780 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
7781 MonoMethodSignature *call_sig = csig;
7782 gboolean uses_handles = FALSE;
7783 (void) mono_lookup_internal_call_full (method, &uses_handles);
7786 /* If it uses handles and MonoError, it had better check exceptions */
7787 g_assert (!uses_handles || check_exceptions);
7790 MonoMethodSignature *ret;
7792 /* Add a MonoError argument */
7793 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
7794 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
7796 ret->param_count = csig->param_count + 1;
7797 ret->ret = csig->ret;
7798 for (int i = 0; i < csig->param_count; ++i) {
7799 // FIXME: TODO implement handle wrapping for out and inout params.
7800 g_assert (!mono_signature_param_is_out (csig, i));
7801 ret->params [i] = csig->params [i];
7803 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
7808 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
7809 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
7811 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
7812 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
7813 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
7815 // FIXME: Change csig so it passes a handle not an objref
7822 * Add a null check since public icalls can be called with 'call' which
7823 * does no such check.
7825 mono_mb_emit_byte (mb, CEE_LDARG_0);
7826 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7827 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7828 mono_mb_patch_branch (mb, pos);
7832 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7833 mono_mb_emit_ldloc_addr (mb, error_var);
7834 mono_mb_emit_icall (mb, mono_icall_start);
7835 mono_mb_emit_stloc (mb, thread_info_var);
7838 mono_mb_emit_byte (mb, CEE_LDARG_0);
7839 mono_mb_emit_icall (mb, mono_handle_new);
7841 for (i = 0; i < sig->param_count; i++) {
7842 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7843 if (MONO_TYPE_IS_REFERENCE (sig->params [i])) {
7844 mono_mb_emit_icall (mb, mono_handle_new);
7847 mono_mb_emit_ldloc_addr (mb, error_var);
7850 mono_mb_emit_byte (mb, CEE_LDARG_0);
7851 for (i = 0; i < sig->param_count; i++)
7852 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7856 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7857 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7858 mono_mb_emit_calli (mb, call_sig);
7860 g_assert (piinfo->addr);
7861 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
7865 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
7866 // if (ret != NULL_HANDLE) {
7867 // ret = MONO_HANDLE_RAW(ret)
7869 mono_mb_emit_byte (mb, CEE_DUP);
7870 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
7871 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
7872 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7873 mono_mb_patch_branch (mb, pos);
7875 mono_mb_emit_ldloc (mb, thread_info_var);
7876 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
7877 mono_mb_emit_ldloc_addr (mb, error_var);
7878 mono_mb_emit_icall (mb, mono_icall_end);
7881 if (check_exceptions)
7882 emit_thread_interrupt_checkpoint (mb);
7883 mono_mb_emit_byte (mb, CEE_RET);
7885 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7886 info->d.managed_to_native.method = method;
7888 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7890 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7899 g_assert (piinfo->addr);
7902 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7903 mono_method_get_marshal_info (method, mspecs);
7905 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7907 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7908 info->d.managed_to_native.method = method;
7910 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7912 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7917 for (i = sig->param_count; i >= 0; i--)
7919 mono_metadata_free_marshal_spec (mspecs [i]);
7923 /* mono_method_print_code (res); */
7929 * mono_marshal_get_native_func_wrapper:
7930 * @image: The image to use for memory allocation and for looking up custom marshallers.
7931 * @sig: The signature of the function
7932 * @func: The native function to wrap
7934 * Returns a wrapper method around native functions, similar to the pinvoke
7938 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7939 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7941 MonoMethodSignature *csig;
7943 SignaturePointerPair key, *new_key;
7944 MonoMethodBuilder *mb;
7953 // Generic types are not safe to place in MonoImage caches.
7954 g_assert (!sig->is_inflated);
7956 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7957 if ((res = mono_marshal_find_in_cache (cache, &key)))
7960 name = g_strdup_printf ("wrapper_native_%p", func);
7961 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7962 mb->method->save_lmf = 1;
7965 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7968 csig = mono_metadata_signature_dup_full (image, sig);
7971 new_key = g_new (SignaturePointerPair,1);
7972 new_key->sig = csig;
7973 new_key->pointer = func;
7975 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7981 mono_marshal_set_wrapper_info (res, NULL);
7987 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7991 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7993 MonoMethodSignature *sig, *csig;
7994 MonoMethodBuilder *mb;
7999 MonoMethodPInvoke mpiinfo;
8000 MonoMethodPInvoke *piinfo = &mpiinfo;
8001 MonoMarshalSpec **mspecs;
8002 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8003 MonoImage *image = invoke->klass->image;
8006 // FIXME: include UnmanagedFunctionPointerAttribute info
8009 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8011 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8013 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8016 memset (&mpiinfo, 0, sizeof (mpiinfo));
8017 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8019 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8020 mono_method_get_marshal_info (invoke, mspecs);
8021 /* Freed below so don't alloc from mempool */
8022 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8025 name = g_strdup_printf ("wrapper_aot_native");
8026 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8027 mb->method->save_lmf = 1;
8030 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8033 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8034 info->d.managed_to_native.method = invoke;
8036 g_assert (!sig->hasthis);
8037 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8039 res = mono_mb_create_and_cache_full (cache, invoke,
8040 mb, csig, csig->param_count + 16,
8044 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8046 mono_metadata_free_marshal_spec (mspecs [i]);
8054 * mono_marshal_emit_managed_wrapper:
8056 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8057 * the delegate which wraps the managed method to be called. For closed delegates,
8058 * it could have fewer parameters than the method it wraps.
8059 * THIS_LOC is the memory location where the target of the delegate is stored.
8062 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8065 MonoMethodSignature *sig, *csig;
8071 /* we first do all conversions */
8072 for (i = 0; i < sig->param_count; i ++) {
8073 MonoType *t = sig->params [i];
8076 case MONO_TYPE_OBJECT:
8077 case MONO_TYPE_CLASS:
8078 case MONO_TYPE_VALUETYPE:
8079 case MONO_TYPE_ARRAY:
8080 case MONO_TYPE_SZARRAY:
8081 case MONO_TYPE_STRING:
8082 case MONO_TYPE_BOOLEAN:
8083 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8087 if (!sig->ret->byref) {
8088 switch (sig->ret->type) {
8089 case MONO_TYPE_STRING:
8090 csig->ret = &mono_defaults.int_class->byval_arg;
8097 MonoMethodSignature *sig, *csig;
8098 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8099 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8100 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8101 gboolean closed = FALSE;
8106 /* allocate local 0 (pointer) src_ptr */
8107 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8108 /* allocate local 1 (pointer) dst_ptr */
8109 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8110 /* allocate local 2 (boolean) delete_old */
8111 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8113 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8114 /* Closed delegate */
8115 g_assert (sig->param_count == invoke_sig->param_count + 1);
8117 /* Use a new signature without the first argument */
8118 sig = mono_metadata_signature_dup (sig);
8119 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8120 sig->param_count --;
8123 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8124 /* allocate local 3 to store the return value */
8125 mono_mb_add_local (mb, sig->ret);
8128 if (MONO_TYPE_ISSTRUCT (sig->ret))
8129 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8131 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8132 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8134 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8135 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8140 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8141 * mono_threads_attach_coop ();
8145 * ret = method (...);
8146 * } catch (Exception e) {
8147 * ex = mono_gchandle_new (e, false);
8149 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8150 * mono_threads_detach_coop ();
8153 * mono_marshal_ftnptr_eh_callback (ex);
8159 clauses = g_new0 (MonoExceptionClause, 2);
8161 clause_catch = &clauses [0];
8162 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8163 clause_catch->data.catch_class = mono_defaults.exception_class;
8165 clause_finally = &clauses [1];
8166 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8168 mono_mb_emit_icon (mb, 0);
8169 mono_mb_emit_stloc (mb, 2);
8171 mono_mb_emit_icon (mb, -1);
8172 mono_mb_emit_byte (mb, CEE_CONV_U4);
8173 mono_mb_emit_stloc (mb, ex_local);
8176 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8178 if (!mono_threads_is_coop_enabled ()) {
8179 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8180 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8182 /* mono_threads_attach_coop (); */
8183 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8184 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8185 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8186 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8187 mono_mb_emit_stloc (mb, attach_cookie_local);
8190 /* <interrupt check> */
8191 emit_thread_interrupt_checkpoint (mb);
8193 /* we first do all conversions */
8194 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8195 for (i = 0; i < sig->param_count; i ++) {
8196 MonoType *t = sig->params [i];
8199 case MONO_TYPE_OBJECT:
8200 case MONO_TYPE_CLASS:
8201 case MONO_TYPE_VALUETYPE:
8202 case MONO_TYPE_ARRAY:
8203 case MONO_TYPE_SZARRAY:
8204 case MONO_TYPE_STRING:
8205 case MONO_TYPE_BOOLEAN:
8206 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8216 if (target_handle) {
8217 mono_mb_emit_icon (mb, (gint32)target_handle);
8218 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8221 g_assert_not_reached ();
8223 } else if (closed) {
8224 mono_mb_emit_icon (mb, (gint32)target_handle);
8225 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8228 for (i = 0; i < sig->param_count; i++) {
8229 MonoType *t = sig->params [i];
8231 if (tmp_locals [i]) {
8233 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8235 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8238 mono_mb_emit_ldarg (mb, i);
8241 /* ret = method (...) */
8242 mono_mb_emit_managed_call (mb, method, NULL);
8244 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8245 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8246 mono_class_init (klass);
8247 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8248 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8249 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8250 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8251 mono_mb_emit_stloc (mb, m->vtaddr_var);
8255 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8256 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8257 } else if (!sig->ret->byref) {
8258 switch (sig->ret->type) {
8259 case MONO_TYPE_VOID:
8261 case MONO_TYPE_BOOLEAN:
8264 case MONO_TYPE_CHAR:
8276 case MONO_TYPE_OBJECT:
8277 mono_mb_emit_stloc (mb, 3);
8279 case MONO_TYPE_STRING:
8280 csig->ret = &mono_defaults.int_class->byval_arg;
8281 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8283 case MONO_TYPE_VALUETYPE:
8284 case MONO_TYPE_CLASS:
8285 case MONO_TYPE_SZARRAY:
8286 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8289 g_warning ("return type 0x%02x unknown", sig->ret->type);
8290 g_assert_not_reached ();
8293 mono_mb_emit_stloc (mb, 3);
8296 /* Convert byref arguments back */
8297 for (i = 0; i < sig->param_count; i ++) {
8298 MonoType *t = sig->params [i];
8299 MonoMarshalSpec *spec = mspecs [i + 1];
8301 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8302 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8304 else if (t->byref) {
8306 case MONO_TYPE_CLASS:
8307 case MONO_TYPE_VALUETYPE:
8308 case MONO_TYPE_OBJECT:
8309 case MONO_TYPE_STRING:
8310 case MONO_TYPE_BOOLEAN:
8311 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8317 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8318 /* The [Out] information is encoded in the delegate signature */
8320 case MONO_TYPE_SZARRAY:
8321 case MONO_TYPE_CLASS:
8322 case MONO_TYPE_VALUETYPE:
8323 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8326 g_assert_not_reached ();
8331 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8335 /* catch (Exception e) { */
8336 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8337 clause_catch->handler_offset = mono_mb_get_label (mb);
8339 mono_mb_emit_stloc (mb, e_local);
8341 /* ex = mono_gchandle_new (e, false); */
8342 mono_mb_emit_ldloc (mb, e_local);
8343 mono_mb_emit_icon (mb, 0);
8344 mono_mb_emit_icall (mb, mono_gchandle_new);
8345 mono_mb_emit_stloc (mb, ex_local);
8347 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8350 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8353 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8354 clause_finally->handler_offset = mono_mb_get_label (mb);
8356 if (!mono_threads_is_coop_enabled ()) {
8357 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8358 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8360 /* mono_threads_detach_coop (); */
8361 mono_mb_emit_ldloc (mb, attach_cookie_local);
8362 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8363 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8367 mono_mb_emit_ldloc (mb, ex_local);
8368 mono_mb_emit_icon (mb, -1);
8369 mono_mb_emit_byte (mb, CEE_CONV_U4);
8370 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8372 /* mono_marshal_ftnptr_eh_callback (ex) */
8373 mono_mb_emit_ldloc (mb, ex_local);
8374 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8377 mono_mb_patch_branch (mb, ex_m1_pos);
8379 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8381 /* } [endfinally] */
8382 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8384 mono_mb_patch_branch (mb, leave_try_pos);
8385 mono_mb_patch_branch (mb, leave_catch_pos);
8388 if (m->retobj_var) {
8389 mono_mb_emit_ldloc (mb, m->retobj_var);
8390 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8391 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8394 if (!MONO_TYPE_IS_VOID(sig->ret))
8395 mono_mb_emit_ldloc (mb, 3);
8396 mono_mb_emit_byte (mb, CEE_RET);
8399 mono_mb_set_clauses (mb, 2, clauses);
8407 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8409 MonoMethodSignature *sig;
8414 * Under windows, delegates passed to native code must use the STDCALL
8415 * calling convention.
8417 csig->call_convention = MONO_CALL_STDCALL;
8420 sig = mono_method_signature (method);
8422 /* Change default calling convention if needed */
8423 /* Why is this a modopt ? */
8424 if (sig->ret && sig->ret->num_mods) {
8425 for (i = 0; i < sig->ret->num_mods; ++i) {
8427 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8428 g_assert (mono_error_ok (&error));
8429 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8430 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8431 csig->call_convention = MONO_CALL_C;
8432 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8433 csig->call_convention = MONO_CALL_STDCALL;
8434 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8435 csig->call_convention = MONO_CALL_FASTCALL;
8436 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8437 csig->call_convention = MONO_CALL_THISCALL;
8444 * generates IL code to call managed methods from unmanaged code
8445 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8448 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8451 MonoMethodSignature *sig, *csig, *invoke_sig;
8452 MonoMethodBuilder *mb;
8453 MonoMethod *res, *invoke;
8454 MonoMarshalSpec **mspecs;
8455 MonoMethodPInvoke piinfo;
8458 EmitMarshalContext m;
8460 g_assert (method != NULL);
8461 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8464 * FIXME: Should cache the method+delegate type pair, since the same method
8465 * could be called with different delegates, thus different marshalling
8468 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8470 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8473 invoke = mono_get_delegate_invoke (delegate_klass);
8474 invoke_sig = mono_method_signature (invoke);
8476 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8477 mono_method_get_marshal_info (invoke, mspecs);
8479 sig = mono_method_signature (method);
8481 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8483 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8484 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8486 /* we copy the signature, so that we can modify it */
8488 /* Need to free this later */
8489 csig = mono_metadata_signature_dup (invoke_sig);
8491 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8495 memset (&m, 0, sizeof (m));
8501 m.image = method->klass->image;
8503 mono_marshal_set_callconv_from_modopt (invoke, csig);
8505 /* The attribute is only available in Net 2.0 */
8506 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8507 MonoCustomAttrInfo *cinfo;
8508 MonoCustomAttrEntry *attr;
8511 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8512 * contents of the attribute without constructing it, as that might not be
8513 * possible when running in cross-compiling mode.
8515 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8516 mono_error_assert_ok (&error);
8519 for (i = 0; i < cinfo->num_attrs; ++i) {
8520 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8521 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8522 attr = &cinfo->attrs [i];
8528 MonoArray *typed_args, *named_args;
8529 CattrNamedArg *arginfo;
8533 MonoBoolean set_last_error = 0;
8536 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8537 g_assert (mono_error_ok (&error));
8538 g_assert (mono_array_length (typed_args) == 1);
8541 o = mono_array_get (typed_args, MonoObject*, 0);
8542 call_conv = *(gint32*)mono_object_unbox (o);
8545 for (i = 0; i < mono_array_length (named_args); ++i) {
8546 CattrNamedArg *narg = &arginfo [i];
8548 o = mono_array_get (named_args, MonoObject*, i);
8550 g_assert (narg->field);
8551 if (!strcmp (narg->field->name, "CharSet")) {
8552 charset = *(gint32*)mono_object_unbox (o);
8553 } else if (!strcmp (narg->field->name, "SetLastError")) {
8554 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8555 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8556 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8557 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8558 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8560 g_assert_not_reached ();
8566 memset (&piinfo, 0, sizeof (piinfo));
8568 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8570 csig->call_convention = call_conv - 1;
8573 if (cinfo && !cinfo->cached)
8574 mono_custom_attrs_free (cinfo);
8577 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8579 if (!target_handle) {
8582 // FIXME: Associate it with the method+delegate_klass pair
8583 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8584 info->d.native_to_managed.method = method;
8585 info->d.native_to_managed.klass = delegate_klass;
8587 res = mono_mb_create_and_cache_full (cache, method,
8588 mb, csig, sig->param_count + 16,
8594 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8598 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8600 mono_metadata_free_marshal_spec (mspecs [i]);
8603 /* mono_method_print_code (res); */
8609 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8613 MonoMethodSignature *sig;
8614 MonoMethodBuilder *mb;
8619 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8621 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8624 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8625 MonoMethodSignature *csig;
8626 MonoMarshalSpec **mspecs;
8627 EmitMarshalContext m;
8629 sig = mono_method_signature (method);
8630 g_assert (!sig->hasthis);
8632 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8633 mono_method_get_marshal_info (method, mspecs);
8635 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8636 csig = mono_metadata_signature_dup_full (image, sig);
8640 memset (&m, 0, sizeof (m));
8648 mono_marshal_set_callconv_from_modopt (method, csig);
8650 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8652 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8657 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8660 for (i = sig->param_count; i >= 0; i--)
8662 mono_metadata_free_marshal_spec (mspecs [i]);
8665 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8666 mono_error_assert_ok (&error);
8667 return compiled_ptr;
8670 sig = mono_method_signature (method);
8671 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8673 param_count = sig->param_count + sig->hasthis;
8675 for (i = 0; i < param_count; i++)
8676 mono_mb_emit_ldarg (mb, i);
8678 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8679 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8681 mono_mb_emit_op (mb, CEE_CALL, method);
8682 mono_mb_emit_byte (mb, CEE_RET);
8687 method = mono_mb_create (mb, sig, param_count, NULL);
8690 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8691 mono_error_assert_ok (&error);
8692 return compiled_ptr;
8698 * The code directly following this is the cache hit, value positive branch
8700 * This function takes a new method builder with 0 locals and adds two locals
8701 * to create multiple out-branches and the fall through state of having the object
8702 * on the stack after a cache miss
8705 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8706 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8707 MonoMethodBuilder *mb)
8711 /* allocate local 0 (pointer) obj_vtable */
8712 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8713 /* allocate local 1 (pointer) cached_vtable */
8714 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8717 mono_mb_emit_ldarg (mb, obj_arg_position);
8718 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8720 /*obj_vtable = obj->vtable;*/
8721 mono_mb_emit_ldarg (mb, obj_arg_position);
8722 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8723 mono_mb_emit_byte (mb, CEE_LDIND_I);
8724 mono_mb_emit_stloc (mb, 0);
8726 /* cached_vtable = *cache*/
8727 mono_mb_emit_ldarg (mb, cache_arg_position);
8728 mono_mb_emit_byte (mb, CEE_LDIND_I);
8729 mono_mb_emit_stloc (mb, 1);
8731 mono_mb_emit_ldloc (mb, 1);
8732 mono_mb_emit_byte (mb, CEE_LDC_I4);
8733 mono_mb_emit_i4 (mb, ~0x1);
8734 mono_mb_emit_byte (mb, CEE_CONV_I);
8735 mono_mb_emit_byte (mb, CEE_AND);
8736 mono_mb_emit_ldloc (mb, 0);
8737 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8738 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8740 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8741 mono_mb_emit_ldloc (mb, 1);
8742 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8743 mono_mb_emit_byte (mb, CEE_CONV_U);
8744 mono_mb_emit_byte (mb, CEE_AND);
8745 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8746 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8749 mono_mb_patch_branch (mb, cache_miss_pos);
8752 mono_mb_emit_ldarg (mb, obj_arg_position);
8753 mono_mb_emit_ldarg (mb, class_arg_position);
8754 mono_mb_emit_ldarg (mb, cache_arg_position);
8755 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8758 #endif /* DISABLE_JIT */
8761 * This does the equivalent of mono_object_castclass_with_cache.
8764 mono_marshal_get_castclass_with_cache (void)
8766 static MonoMethod *cached;
8768 MonoMethodBuilder *mb;
8769 MonoMethodSignature *sig;
8770 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8773 const int obj_arg_position = 0;
8774 const int class_arg_position = 1;
8775 const int cache_arg_position = 2;
8780 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8781 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8782 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8783 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8784 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8785 sig->ret = &mono_defaults.object_class->byval_arg;
8789 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8790 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8791 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8794 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8795 mono_mb_emit_ldarg (mb, obj_arg_position);
8796 mono_mb_emit_byte (mb, CEE_RET);
8799 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8800 mono_mb_patch_branch (mb, invalid_cast_pos);
8801 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8804 mono_mb_patch_branch (mb, return_null_pos);
8805 mono_mb_emit_byte (mb, CEE_LDNULL);
8806 mono_mb_emit_byte (mb, CEE_RET);
8807 #endif /* DISABLE_JIT */
8809 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8810 res = mono_mb_create (mb, sig, 8, info);
8813 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8814 mono_free_method (res);
8815 mono_metadata_free_method_signature (sig);
8822 /* this is an icall */
8824 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8827 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8828 if (mono_error_set_pending_exception (&error))
8831 #ifndef DISABLE_REMOTING
8832 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8836 uintptr_t cache_update = (uintptr_t)obj->vtable;
8838 cache_update = cache_update | 0x1;
8840 *cache = cache_update;
8846 * This does the equivalent of mono_object_isinst_with_cache.
8849 mono_marshal_get_isinst_with_cache (void)
8851 static MonoMethod *cached;
8853 MonoMethodBuilder *mb;
8854 MonoMethodSignature *sig;
8855 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8858 const int obj_arg_position = 0;
8859 const int class_arg_position = 1;
8860 const int cache_arg_position = 2;
8865 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8866 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8868 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8870 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8872 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8873 sig->ret = &mono_defaults.object_class->byval_arg;
8877 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8878 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8879 // Return the object gotten via the slow path.
8880 mono_mb_emit_byte (mb, CEE_RET);
8883 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8884 mono_mb_patch_branch (mb, return_null_pos);
8885 mono_mb_emit_byte (mb, CEE_LDNULL);
8886 mono_mb_emit_byte (mb, CEE_RET);
8889 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8890 mono_mb_emit_ldarg (mb, obj_arg_position);
8891 mono_mb_emit_byte (mb, CEE_RET);
8894 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8895 res = mono_mb_create (mb, sig, 8, info);
8898 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8899 mono_free_method (res);
8900 mono_metadata_free_method_signature (sig);
8908 * mono_marshal_get_isinst:
8909 * @klass: the type of the field
8911 * This method generates a function which can be used to check if an object is
8912 * an instance of the given type, icluding the case where the object is a proxy.
8913 * The generated function has the following signature:
8914 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8917 mono_marshal_get_isinst (MonoClass *klass)
8919 static MonoMethodSignature *isint_sig = NULL;
8923 int pos_was_ok, pos_end;
8924 #ifndef DISABLE_REMOTING
8925 int pos_end2, pos_failed;
8928 MonoMethodBuilder *mb;
8930 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8931 if ((res = mono_marshal_find_in_cache (cache, klass)))
8935 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8936 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8937 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8938 isint_sig->pinvoke = 0;
8941 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8942 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8945 mb->method->save_lmf = 1;
8948 /* check if the object is a proxy that needs special cast */
8949 mono_mb_emit_ldarg (mb, 0);
8950 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8951 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8953 /* The result of MONO_CISINST can be:
8954 0) the type check succeeded
8955 1) the type check did not succeed
8956 2) a CanCastTo call is needed */
8957 #ifndef DISABLE_REMOTING
8958 mono_mb_emit_byte (mb, CEE_DUP);
8959 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8961 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8962 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8964 /* get the real proxy from the transparent proxy*/
8966 mono_mb_emit_ldarg (mb, 0);
8967 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8968 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8972 mono_mb_patch_branch (mb, pos_failed);
8973 mono_mb_emit_byte (mb, CEE_LDNULL);
8974 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8978 mono_mb_patch_branch (mb, pos_was_ok);
8979 mono_mb_emit_byte (mb, CEE_POP);
8980 mono_mb_emit_ldarg (mb, 0);
8984 mono_mb_patch_branch (mb, pos_end);
8985 mono_mb_patch_branch (mb, pos_end2);
8986 mono_mb_emit_byte (mb, CEE_RET);
8988 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8992 mono_mb_emit_byte (mb, CEE_LDNULL);
8993 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8997 mono_mb_patch_branch (mb, pos_was_ok);
8998 mono_mb_emit_ldarg (mb, 0);
9002 mono_mb_patch_branch (mb, pos_end);
9003 mono_mb_emit_byte (mb, CEE_RET);
9004 #endif /* DISABLE_REMOTING */
9005 #endif /* DISABLE_JIT */
9007 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9008 info->d.proxy.klass = klass;
9009 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
9016 * mono_marshal_get_castclass:
9017 * @klass: the type of the field
9019 * This method generates a function which can be used to cast an object to
9020 * an instance of the given type, icluding the case where the object is a proxy.
9021 * The generated function has the following signature:
9022 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
9025 mono_marshal_get_castclass (MonoClass *klass)
9027 static MonoMethodSignature *castclass_sig = NULL;
9030 #ifndef DISABLE_REMOTING
9031 int pos_was_ok, pos_was_ok2;
9034 MonoMethodBuilder *mb;
9037 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
9038 if ((res = mono_marshal_find_in_cache (cache, klass)))
9041 if (!castclass_sig) {
9042 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
9043 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
9044 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
9045 castclass_sig->pinvoke = 0;
9048 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
9049 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
9052 mb->method->save_lmf = 1;
9055 /* check if the object is a proxy that needs special cast */
9056 mono_mb_emit_ldarg (mb, 0);
9057 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
9058 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
9060 /* The result of MONO_CCASTCLASS can be:
9061 0) the cast is valid
9062 1) cast of unknown proxy type
9063 or an exception if the cast is is invalid
9065 #ifndef DISABLE_REMOTING
9066 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
9068 /* get the real proxy from the transparent proxy*/
9070 mono_mb_emit_ldarg (mb, 0);
9071 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
9072 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9075 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9078 mono_mb_patch_branch (mb, pos_was_ok);
9079 mono_mb_patch_branch (mb, pos_was_ok2);
9081 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
9082 mono_mb_emit_byte (mb, CEE_POP);
9083 #endif /* DISABLE_REMOTING */
9085 mono_mb_emit_ldarg (mb, 0);
9088 mono_mb_emit_byte (mb, CEE_RET);
9089 #endif /* DISABLE_JIT */
9091 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9093 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
9101 * mono_marshal_get_struct_to_ptr:
9104 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9107 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9109 MonoMethodBuilder *mb;
9110 static MonoMethod *stoptr = NULL;
9114 g_assert (klass != NULL);
9116 mono_marshal_load_type_info (klass);
9118 if (klass->marshal_info->str_to_ptr)
9119 return klass->marshal_info->str_to_ptr;
9122 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9125 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9128 if (klass->blittable) {
9129 mono_mb_emit_byte (mb, CEE_LDARG_1);
9130 mono_mb_emit_byte (mb, CEE_LDARG_0);
9131 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9132 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9133 mono_mb_emit_byte (mb, CEE_PREFIX1);
9134 mono_mb_emit_byte (mb, CEE_CPBLK);
9137 /* allocate local 0 (pointer) src_ptr */
9138 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9139 /* allocate local 1 (pointer) dst_ptr */
9140 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9141 /* allocate local 2 (boolean) delete_old */
9142 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9143 mono_mb_emit_byte (mb, CEE_LDARG_2);
9144 mono_mb_emit_stloc (mb, 2);
9146 /* initialize src_ptr to point to the start of object data */
9147 mono_mb_emit_byte (mb, CEE_LDARG_0);
9148 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9149 mono_mb_emit_stloc (mb, 0);
9151 /* initialize dst_ptr */
9152 mono_mb_emit_byte (mb, CEE_LDARG_1);
9153 mono_mb_emit_stloc (mb, 1);
9155 emit_struct_conv (mb, klass, FALSE);
9158 mono_mb_emit_byte (mb, CEE_RET);
9160 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9161 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9164 mono_marshal_lock ();
9165 if (!klass->marshal_info->str_to_ptr)
9166 klass->marshal_info->str_to_ptr = res;
9168 res = klass->marshal_info->str_to_ptr;
9169 mono_marshal_unlock ();
9174 * mono_marshal_get_ptr_to_struct:
9177 * generates IL code for PtrToStructure (IntPtr src, object structure)
9180 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9182 MonoMethodBuilder *mb;
9183 static MonoMethodSignature *ptostr = NULL;
9187 g_assert (klass != NULL);
9189 mono_marshal_load_type_info (klass);
9191 if (klass->marshal_info->ptr_to_str)
9192 return klass->marshal_info->ptr_to_str;
9195 MonoMethodSignature *sig;
9197 /* Create the signature corresponding to
9198 static void PtrToStructure (IntPtr ptr, object structure);
9199 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9200 sig = mono_create_icall_signature ("void ptr object");
9201 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9203 mono_memory_barrier ();
9207 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9210 if (klass->blittable) {
9211 mono_mb_emit_byte (mb, CEE_LDARG_1);
9212 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9213 mono_mb_emit_byte (mb, CEE_LDARG_0);
9214 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9215 mono_mb_emit_byte (mb, CEE_PREFIX1);
9216 mono_mb_emit_byte (mb, CEE_CPBLK);
9219 /* allocate local 0 (pointer) src_ptr */
9220 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9221 /* allocate local 1 (pointer) dst_ptr */
9222 mono_mb_add_local (mb, &klass->this_arg);
9224 /* initialize src_ptr to point to the start of object data */
9225 mono_mb_emit_byte (mb, CEE_LDARG_0);
9226 mono_mb_emit_stloc (mb, 0);
9228 /* initialize dst_ptr */
9229 mono_mb_emit_byte (mb, CEE_LDARG_1);
9230 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9231 mono_mb_emit_stloc (mb, 1);
9233 emit_struct_conv (mb, klass, TRUE);
9236 mono_mb_emit_byte (mb, CEE_RET);
9238 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9239 res = mono_mb_create (mb, ptostr, 0, info);
9242 mono_marshal_lock ();
9243 if (!klass->marshal_info->ptr_to_str)
9244 klass->marshal_info->ptr_to_str = res;
9246 res = klass->marshal_info->ptr_to_str;
9247 mono_marshal_unlock ();
9252 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9253 * This is used to avoid infinite recursion since it is hard to determine where to
9254 * replace a method with its synchronized wrapper, and where not.
9255 * The runtime should execute METHOD instead of the wrapper.
9258 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9260 MonoMethodBuilder *mb;
9262 MonoMethodSignature *sig;
9264 MonoGenericContext *ctx = NULL;
9265 MonoGenericContainer *container = NULL;
9267 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9268 ctx = &((MonoMethodInflated*)method)->context;
9269 method = ((MonoMethodInflated*)method)->declaring;
9270 container = mono_method_get_generic_container (method);
9272 container = method->klass->generic_container;
9273 g_assert (container);
9276 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9278 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9279 mono_mb_emit_byte (mb, CEE_RET);
9281 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9283 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9284 info->d.synchronized_inner.method = method;
9285 res = mono_mb_create (mb, sig, 0, info);
9289 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9290 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9296 * generates IL code for the synchronized wrapper: the generated method
9297 * calls METHOD while locking 'this' or the parent type.
9300 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9302 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9303 MonoMethodSignature *sig;
9304 MonoExceptionClause *clause;
9305 MonoMethodBuilder *mb;
9309 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9310 MonoGenericContext *ctx = NULL;
9311 MonoMethod *orig_method = NULL;
9312 MonoGenericContainer *container = NULL;
9316 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9319 /* FIXME: Support generic methods too */
9320 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9321 orig_method = method;
9322 ctx = &((MonoMethodInflated*)method)->context;
9323 method = ((MonoMethodInflated*)method)->declaring;
9324 container = mono_method_get_generic_container (method);
9326 container = method->klass->generic_container;
9327 g_assert (container);
9334 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9335 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9339 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9340 if ((res = mono_marshal_find_in_cache (cache, method)))
9344 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9347 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9349 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9350 info->d.synchronized.method = method;
9353 mb->skip_visibility = 1;
9355 if (!MONO_TYPE_IS_VOID (sig->ret))
9356 ret_local = mono_mb_add_local (mb, sig->ret);
9359 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9360 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9361 mono_class_set_type_load_failure (method->klass, "");
9363 /* This will throw the type load exception when the wrapper is compiled */
9364 mono_mb_emit_byte (mb, CEE_LDNULL);
9365 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9366 mono_mb_emit_byte (mb, CEE_POP);
9368 if (!MONO_TYPE_IS_VOID (sig->ret))
9369 mono_mb_emit_ldloc (mb, ret_local);
9370 mono_mb_emit_byte (mb, CEE_RET);
9373 res = mono_mb_create_and_cache_full (cache, method,
9374 mb, sig, sig->param_count + 16, info, NULL);
9382 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9383 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9385 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9386 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9389 mono_marshal_lock ();
9391 if (!enter_method) {
9392 MonoMethodDesc *desc;
9394 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9395 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9396 g_assert (enter_method);
9397 mono_method_desc_free (desc);
9399 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9400 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9401 g_assert (exit_method);
9402 mono_method_desc_free (desc);
9404 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9405 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9406 g_assert (gettypefromhandle_method);
9407 mono_method_desc_free (desc);
9410 mono_marshal_unlock ();
9413 /* Push this or the type object */
9414 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9415 /* We have special handling for this in the JIT */
9416 int index = mono_mb_add_data (mb, method->klass);
9417 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9418 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9419 mono_mb_emit_i4 (mb, index);
9421 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9424 mono_mb_emit_ldarg (mb, 0);
9425 mono_mb_emit_stloc (mb, this_local);
9427 /* Call Monitor::Enter() */
9428 mono_mb_emit_ldloc (mb, this_local);
9429 mono_mb_emit_ldloc_addr (mb, taken_local);
9430 mono_mb_emit_managed_call (mb, enter_method, NULL);
9432 clause->try_offset = mono_mb_get_label (mb);
9434 /* Call the method */
9436 mono_mb_emit_ldarg (mb, 0);
9437 for (i = 0; i < sig->param_count; i++)
9438 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9442 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9443 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9445 mono_mb_emit_managed_call (mb, method, NULL);
9448 if (!MONO_TYPE_IS_VOID (sig->ret))
9449 mono_mb_emit_stloc (mb, ret_local);
9451 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9453 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9454 clause->handler_offset = mono_mb_get_label (mb);
9456 /* Call Monitor::Exit() if needed */
9457 mono_mb_emit_ldloc (mb, taken_local);
9458 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9459 mono_mb_emit_ldloc (mb, this_local);
9460 mono_mb_emit_managed_call (mb, exit_method, NULL);
9461 mono_mb_patch_branch (mb, pos2);
9462 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9464 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9466 mono_mb_patch_branch (mb, pos);
9467 if (!MONO_TYPE_IS_VOID (sig->ret))
9468 mono_mb_emit_ldloc (mb, ret_local);
9469 mono_mb_emit_byte (mb, CEE_RET);
9471 mono_mb_set_clauses (mb, 1, clause);
9476 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9477 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9479 res = mono_mb_create_and_cache_full (cache, method,
9480 mb, sig, sig->param_count + 16, info, NULL);
9489 * the returned method calls 'method' unboxing the this argument
9492 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9494 MonoMethodSignature *sig = mono_method_signature (method);
9496 MonoMethodBuilder *mb;
9501 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9503 if ((res = mono_marshal_find_in_cache (cache, method)))
9506 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9508 g_assert (sig->hasthis);
9511 mono_mb_emit_ldarg (mb, 0);
9512 mono_mb_emit_icon (mb, sizeof (MonoObject));
9513 mono_mb_emit_byte (mb, CEE_ADD);
9514 for (i = 0; i < sig->param_count; ++i)
9515 mono_mb_emit_ldarg (mb, i + 1);
9516 mono_mb_emit_managed_call (mb, method, NULL);
9517 mono_mb_emit_byte (mb, CEE_RET);
9520 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9521 info->d.unbox.method = method;
9523 res = mono_mb_create_and_cache_full (cache, method,
9524 mb, sig, sig->param_count + 16, info, NULL);
9527 /* mono_method_print_code (res); */
9533 STELEMREF_OBJECT, /*no check at all*/
9534 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9535 STELEMREF_CLASS, /*only the klass->parents check*/
9536 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9537 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9538 STELEMREF_KIND_COUNT
9541 static const char *strelemref_wrapper_name[] = {
9542 "object", "sealed_class", "class", "interface", "complex"
9546 is_monomorphic_array (MonoClass *klass)
9548 MonoClass *element_class;
9549 if (klass->rank != 1)
9552 element_class = klass->element_class;
9553 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9557 get_virtual_stelemref_kind (MonoClass *element_class)
9559 if (element_class == mono_defaults.object_class)
9560 return STELEMREF_OBJECT;
9561 if (is_monomorphic_array (element_class))
9562 return STELEMREF_SEALED_CLASS;
9563 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9564 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9565 #ifdef COMPRESSED_INTERFACE_BITMAP
9566 return STELEMREF_COMPLEX;
9568 return STELEMREF_INTERFACE;
9570 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9571 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9572 return STELEMREF_COMPLEX;
9573 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9574 return STELEMREF_SEALED_CLASS;
9575 return STELEMREF_CLASS;
9581 load_array_element_address (MonoMethodBuilder *mb)
9583 mono_mb_emit_ldarg (mb, 0);
9584 mono_mb_emit_ldarg (mb, 1);
9585 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9589 load_array_class (MonoMethodBuilder *mb, int aklass)
9591 mono_mb_emit_ldarg (mb, 0);
9592 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9593 mono_mb_emit_byte (mb, CEE_LDIND_I);
9594 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9595 mono_mb_emit_byte (mb, CEE_LDIND_I);
9596 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9597 mono_mb_emit_byte (mb, CEE_LDIND_I);
9598 mono_mb_emit_stloc (mb, aklass);
9602 load_value_class (MonoMethodBuilder *mb, int vklass)
9604 mono_mb_emit_ldarg (mb, 2);
9605 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9606 mono_mb_emit_byte (mb, CEE_LDIND_I);
9607 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9608 mono_mb_emit_byte (mb, CEE_LDIND_I);
9609 mono_mb_emit_stloc (mb, vklass);
9615 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9617 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9618 printf ("slow vstore of %s\n", name);
9625 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9626 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9627 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9628 * - Add a case for arrays of arrays.
9631 get_virtual_stelemref_wrapper (int kind)
9633 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9634 static MonoMethodSignature *signature;
9635 MonoMethodBuilder *mb;
9638 const char *param_names [16];
9639 guint32 b1, b2, b3, b4;
9640 int aklass, vklass, vtable, uiid;
9641 int array_slot_addr;
9644 if (cached_methods [kind])
9645 return cached_methods [kind];
9647 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9648 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9652 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9654 /* void this::stelemref (size_t idx, void* value) */
9655 sig->ret = &mono_defaults.void_class->byval_arg;
9656 sig->hasthis = TRUE;
9657 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9658 sig->params [1] = &mono_defaults.object_class->byval_arg;
9663 param_names [0] = "index";
9664 param_names [1] = "value";
9665 mono_mb_set_param_names (mb, param_names);
9667 /*For now simply call plain old stelemref*/
9669 case STELEMREF_OBJECT:
9670 /* ldelema (implicit bound check) */
9671 load_array_element_address (mb);
9673 mono_mb_emit_ldarg (mb, 2);
9674 mono_mb_emit_byte (mb, CEE_STIND_REF);
9675 mono_mb_emit_byte (mb, CEE_RET);
9678 case STELEMREF_COMPLEX:
9680 <ldelema (bound check)>
9683 if (!mono_object_isinst (value, aklass))
9687 *array_slot_addr = value;
9690 throw new ArrayTypeMismatchException ();
9693 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9694 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9698 /*Use this to debug/record stores that are going thru the slow path*/
9699 MonoMethodSignature *csig;
9700 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9701 csig->ret = &mono_defaults.void_class->byval_arg;
9702 csig->params [0] = &mono_defaults.object_class->byval_arg;
9703 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9704 csig->params [2] = &mono_defaults.object_class->byval_arg;
9705 mono_mb_emit_ldarg (mb, 0);
9706 mono_mb_emit_ldarg (mb, 1);
9707 mono_mb_emit_ldarg (mb, 2);
9708 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9712 /* ldelema (implicit bound check) */
9713 load_array_element_address (mb);
9714 mono_mb_emit_stloc (mb, array_slot_addr);
9716 /* if (!value) goto do_store */
9717 mono_mb_emit_ldarg (mb, 2);
9718 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9720 /* aklass = array->vtable->klass->element_class */
9721 load_array_class (mb, aklass);
9723 /*if (mono_object_isinst (value, aklass)) */
9724 mono_mb_emit_ldarg (mb, 2);
9725 mono_mb_emit_ldloc (mb, aklass);
9726 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9727 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9730 mono_mb_patch_branch (mb, b1);
9731 mono_mb_emit_ldloc (mb, array_slot_addr);
9732 mono_mb_emit_ldarg (mb, 2);
9733 mono_mb_emit_byte (mb, CEE_STIND_REF);
9734 mono_mb_emit_byte (mb, CEE_RET);
9737 mono_mb_patch_branch (mb, b2);
9739 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9742 case STELEMREF_SEALED_CLASS:
9744 <ldelema (bound check)>
9748 aklass = array->vtable->klass->element_class;
9749 vklass = value->vtable->klass;
9751 if (vklass != aklass)
9755 *array_slot_addr = value;
9758 throw new ArrayTypeMismatchException ();
9760 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9761 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9762 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9765 /* ldelema (implicit bound check) */
9766 load_array_element_address (mb);
9767 mono_mb_emit_stloc (mb, array_slot_addr);
9769 /* if (!value) goto do_store */
9770 mono_mb_emit_ldarg (mb, 2);
9771 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9773 /* aklass = array->vtable->klass->element_class */
9774 load_array_class (mb, aklass);
9776 /* vklass = value->vtable->klass */
9777 load_value_class (mb, vklass);
9779 /*if (vklass != aklass) goto do_exception; */
9780 mono_mb_emit_ldloc (mb, aklass);
9781 mono_mb_emit_ldloc (mb, vklass);
9782 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9785 mono_mb_patch_branch (mb, b1);
9786 mono_mb_emit_ldloc (mb, array_slot_addr);
9787 mono_mb_emit_ldarg (mb, 2);
9788 mono_mb_emit_byte (mb, CEE_STIND_REF);
9789 mono_mb_emit_byte (mb, CEE_RET);
9792 mono_mb_patch_branch (mb, b2);
9793 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9796 case STELEMREF_CLASS:
9799 <ldelema (bound check)>
9803 aklass = array->vtable->klass->element_class;
9804 vklass = value->vtable->klass;
9806 if (vklass->idepth < aklass->idepth)
9809 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9813 *array_slot_addr = value;
9817 throw new ArrayTypeMismatchException ();
9819 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9820 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9821 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9823 /* ldelema (implicit bound check) */
9824 load_array_element_address (mb);
9825 mono_mb_emit_stloc (mb, array_slot_addr);
9827 /* if (!value) goto do_store */
9828 mono_mb_emit_ldarg (mb, 2);
9829 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9831 /* aklass = array->vtable->klass->element_class */
9832 load_array_class (mb, aklass);
9834 /* vklass = value->vtable->klass */
9835 load_value_class (mb, vklass);
9837 /*if (mono_object_isinst (value, aklass)) */
9838 mono_mb_emit_ldarg (mb, 2);
9839 mono_mb_emit_ldloc (mb, aklass);
9840 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9841 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9843 /* if (vklass->idepth < aklass->idepth) goto failue */
9844 mono_mb_emit_ldloc (mb, vklass);
9845 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9846 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9848 mono_mb_emit_ldloc (mb, aklass);
9849 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9850 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9852 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9854 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9855 mono_mb_emit_ldloc (mb, vklass);
9856 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9857 mono_mb_emit_byte (mb, CEE_LDIND_I);
9859 mono_mb_emit_ldloc (mb, aklass);
9860 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9861 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9862 mono_mb_emit_icon (mb, 1);
9863 mono_mb_emit_byte (mb, CEE_SUB);
9864 mono_mb_emit_icon (mb, sizeof (void*));
9865 mono_mb_emit_byte (mb, CEE_MUL);
9866 mono_mb_emit_byte (mb, CEE_ADD);
9867 mono_mb_emit_byte (mb, CEE_LDIND_I);
9869 mono_mb_emit_ldloc (mb, aklass);
9870 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9873 mono_mb_patch_branch (mb, b1);
9874 mono_mb_emit_ldloc (mb, array_slot_addr);
9875 mono_mb_emit_ldarg (mb, 2);
9876 mono_mb_emit_byte (mb, CEE_STIND_REF);
9877 mono_mb_emit_byte (mb, CEE_RET);
9880 mono_mb_patch_branch (mb, b2);
9881 mono_mb_patch_branch (mb, b3);
9882 mono_mb_patch_branch (mb, b4);
9884 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9887 case STELEMREF_INTERFACE:
9894 klass = array->obj.vtable->klass->element_class;
9896 uiid = klass->interface_id;
9897 if (uiid > vt->max_interface_id)
9899 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9902 mono_array_setref (array, index, value);
9905 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9907 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9908 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9909 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9910 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9912 /* ldelema (implicit bound check) */
9913 load_array_element_address (mb);
9914 mono_mb_emit_stloc (mb, array_slot_addr);
9916 /* if (!value) goto do_store */
9917 mono_mb_emit_ldarg (mb, 2);
9918 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9920 /* klass = array->vtable->klass->element_class */
9921 load_array_class (mb, aklass);
9923 /* vt = value->vtable */
9924 mono_mb_emit_ldarg (mb, 2);
9925 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9926 mono_mb_emit_byte (mb, CEE_LDIND_I);
9927 mono_mb_emit_stloc (mb, vtable);
9929 /* uiid = klass->interface_id; */
9930 mono_mb_emit_ldloc (mb, aklass);
9931 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9932 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9933 mono_mb_emit_stloc (mb, uiid);
9935 /*if (uiid > vt->max_interface_id)*/
9936 mono_mb_emit_ldloc (mb, uiid);
9937 mono_mb_emit_ldloc (mb, vtable);
9938 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9939 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9940 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9942 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9944 /*vt->interface_bitmap*/
9945 mono_mb_emit_ldloc (mb, vtable);
9946 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9947 mono_mb_emit_byte (mb, CEE_LDIND_I);
9950 mono_mb_emit_ldloc (mb, uiid);
9951 mono_mb_emit_icon (mb, 3);
9952 mono_mb_emit_byte (mb, CEE_SHR_UN);
9954 /*vt->interface_bitmap [(uiid) >> 3]*/
9955 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9956 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9958 /*(1 << ((uiid)&7)))*/
9959 mono_mb_emit_icon (mb, 1);
9960 mono_mb_emit_ldloc (mb, uiid);
9961 mono_mb_emit_icon (mb, 7);
9962 mono_mb_emit_byte (mb, CEE_AND);
9963 mono_mb_emit_byte (mb, CEE_SHL);
9965 /*bitwise and the whole thing*/
9966 mono_mb_emit_byte (mb, CEE_AND);
9967 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9970 mono_mb_patch_branch (mb, b1);
9971 mono_mb_emit_ldloc (mb, array_slot_addr);
9972 mono_mb_emit_ldarg (mb, 2);
9973 mono_mb_emit_byte (mb, CEE_STIND_REF);
9974 mono_mb_emit_byte (mb, CEE_RET);
9977 mono_mb_patch_branch (mb, b2);
9978 mono_mb_patch_branch (mb, b3);
9979 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9983 mono_mb_emit_ldarg (mb, 0);
9984 mono_mb_emit_ldarg (mb, 1);
9985 mono_mb_emit_ldarg (mb, 2);
9986 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9987 mono_mb_emit_byte (mb, CEE_RET);
9990 #endif /* DISABLE_JIT */
9991 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9992 info->d.virtual_stelemref.kind = kind;
9993 res = mono_mb_create (mb, signature, 4, info);
9994 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9996 mono_marshal_lock ();
9997 if (!cached_methods [kind]) {
9998 cached_methods [kind] = res;
9999 mono_marshal_unlock ();
10001 mono_marshal_unlock ();
10002 mono_free_method (res);
10006 return cached_methods [kind];
10010 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10014 g_assert (array_class->rank == 1);
10015 kind = get_virtual_stelemref_kind (array_class->element_class);
10017 return get_virtual_stelemref_wrapper (kind);
10021 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10026 *nwrappers = STELEMREF_KIND_COUNT;
10027 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10028 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10029 res [i] = get_virtual_stelemref_wrapper (i);
10034 mono_marshal_get_stelemref (void)
10036 static MonoMethod* ret = NULL;
10037 MonoMethodSignature *sig;
10038 MonoMethodBuilder *mb;
10041 guint32 b1, b2, b3, b4;
10043 int aklass, vklass;
10044 int array_slot_addr;
10049 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10052 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10054 /* void stelemref (void* array, int idx, void* value) */
10055 sig->ret = &mono_defaults.void_class->byval_arg;
10056 sig->params [0] = &mono_defaults.object_class->byval_arg;
10057 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10058 sig->params [2] = &mono_defaults.object_class->byval_arg;
10060 #ifndef DISABLE_JIT
10061 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10062 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10063 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10067 <ldelema (bound check)>
10071 aklass = array->vtable->klass->element_class;
10072 vklass = value->vtable->klass;
10074 if (vklass->idepth < aklass->idepth)
10077 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10081 *array_slot_addr = value;
10085 if (mono_object_isinst (value, aklass))
10088 throw new ArrayTypeMismatchException ();
10091 /* ldelema (implicit bound check) */
10092 mono_mb_emit_ldarg (mb, 0);
10093 mono_mb_emit_ldarg (mb, 1);
10094 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10095 mono_mb_emit_stloc (mb, array_slot_addr);
10097 /* if (!value) goto do_store */
10098 mono_mb_emit_ldarg (mb, 2);
10099 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10101 /* aklass = array->vtable->klass->element_class */
10102 mono_mb_emit_ldarg (mb, 0);
10103 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10104 mono_mb_emit_byte (mb, CEE_LDIND_I);
10105 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10106 mono_mb_emit_byte (mb, CEE_LDIND_I);
10107 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10108 mono_mb_emit_byte (mb, CEE_LDIND_I);
10109 mono_mb_emit_stloc (mb, aklass);
10111 /* vklass = value->vtable->klass */
10112 mono_mb_emit_ldarg (mb, 2);
10113 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10114 mono_mb_emit_byte (mb, CEE_LDIND_I);
10115 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10116 mono_mb_emit_byte (mb, CEE_LDIND_I);
10117 mono_mb_emit_stloc (mb, vklass);
10119 /* if (vklass->idepth < aklass->idepth) goto failue */
10120 mono_mb_emit_ldloc (mb, vklass);
10121 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10122 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10124 mono_mb_emit_ldloc (mb, aklass);
10125 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10126 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10128 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10130 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10131 mono_mb_emit_ldloc (mb, vklass);
10132 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10133 mono_mb_emit_byte (mb, CEE_LDIND_I);
10135 mono_mb_emit_ldloc (mb, aklass);
10136 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10137 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10138 mono_mb_emit_icon (mb, 1);
10139 mono_mb_emit_byte (mb, CEE_SUB);
10140 mono_mb_emit_icon (mb, sizeof (void*));
10141 mono_mb_emit_byte (mb, CEE_MUL);
10142 mono_mb_emit_byte (mb, CEE_ADD);
10143 mono_mb_emit_byte (mb, CEE_LDIND_I);
10145 mono_mb_emit_ldloc (mb, aklass);
10147 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10149 copy_pos = mono_mb_get_label (mb);
10151 mono_mb_patch_branch (mb, b1);
10152 mono_mb_emit_ldloc (mb, array_slot_addr);
10153 mono_mb_emit_ldarg (mb, 2);
10154 mono_mb_emit_byte (mb, CEE_STIND_REF);
10156 mono_mb_emit_byte (mb, CEE_RET);
10159 mono_mb_patch_branch (mb, b2);
10160 mono_mb_patch_branch (mb, b3);
10162 mono_mb_emit_ldarg (mb, 2);
10163 mono_mb_emit_ldloc (mb, aklass);
10164 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10166 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10167 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10168 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10170 mono_mb_emit_byte (mb, CEE_RET);
10172 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10173 ret = mono_mb_create (mb, sig, 4, info);
10180 * mono_marshal_get_gsharedvt_in_wrapper:
10182 * This wrapper handles calls from normal code to gsharedvt code.
10185 mono_marshal_get_gsharedvt_in_wrapper (void)
10187 static MonoMethod* ret = NULL;
10188 MonoMethodSignature *sig;
10189 MonoMethodBuilder *mb;
10195 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10197 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10198 sig->ret = &mono_defaults.void_class->byval_arg;
10200 #ifndef DISABLE_JIT
10202 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10204 mono_mb_emit_byte (mb, CEE_RET);
10206 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10207 ret = mono_mb_create (mb, sig, 4, info);
10214 * mono_marshal_get_gsharedvt_out_wrapper:
10216 * This wrapper handles calls from gsharedvt code to normal code.
10219 mono_marshal_get_gsharedvt_out_wrapper (void)
10221 static MonoMethod* ret = NULL;
10222 MonoMethodSignature *sig;
10223 MonoMethodBuilder *mb;
10229 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10231 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10232 sig->ret = &mono_defaults.void_class->byval_arg;
10234 #ifndef DISABLE_JIT
10236 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10238 mono_mb_emit_byte (mb, CEE_RET);
10240 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10241 ret = mono_mb_create (mb, sig, 4, info);
10250 MonoMethod *method;
10253 /* LOCKING: vars accessed under the marshal lock */
10254 static ArrayElemAddr *elem_addr_cache = NULL;
10255 static int elem_addr_cache_size = 0;
10256 static int elem_addr_cache_next = 0;
10259 * mono_marshal_get_array_address:
10260 * @rank: rank of the array type
10261 * @elem_size: size in bytes of an element of an array.
10263 * Returns a MonoMethod that implements the code to get the address
10264 * of an element in a multi-dimenasional array of @rank dimensions.
10265 * The returned method takes an array as the first argument and then
10266 * @rank indexes for the @rank dimensions.
10267 * If ELEM_SIZE is 0, read the array size from the array object.
10270 mono_marshal_get_array_address (int rank, int elem_size)
10273 MonoMethodBuilder *mb;
10274 MonoMethodSignature *sig;
10277 int i, bounds, ind, realidx;
10278 int branch_pos, *branch_positions;
10282 mono_marshal_lock ();
10283 for (i = 0; i < elem_addr_cache_next; ++i) {
10284 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10285 ret = elem_addr_cache [i].method;
10289 mono_marshal_unlock ();
10293 branch_positions = g_new0 (int, rank);
10295 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10297 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10298 sig->ret = &mono_defaults.int_class->byval_arg;
10299 sig->params [0] = &mono_defaults.object_class->byval_arg;
10300 for (i = 0; i < rank; ++i) {
10301 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10304 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10305 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10308 #ifndef DISABLE_JIT
10309 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10310 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10311 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10313 /* bounds = array->bounds; */
10314 mono_mb_emit_ldarg (mb, 0);
10315 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10316 mono_mb_emit_byte (mb, CEE_LDIND_I);
10317 mono_mb_emit_stloc (mb, bounds);
10319 /* ind is the overall element index, realidx is the partial index in a single dimension */
10320 /* ind = idx0 - bounds [0].lower_bound */
10321 mono_mb_emit_ldarg (mb, 1);
10322 mono_mb_emit_ldloc (mb, bounds);
10323 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10324 mono_mb_emit_byte (mb, CEE_ADD);
10325 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10326 mono_mb_emit_byte (mb, CEE_SUB);
10327 mono_mb_emit_stloc (mb, ind);
10328 /* if (ind >= bounds [0].length) goto exeception; */
10329 mono_mb_emit_ldloc (mb, ind);
10330 mono_mb_emit_ldloc (mb, bounds);
10331 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10332 mono_mb_emit_byte (mb, CEE_ADD);
10333 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10334 /* note that we use unsigned comparison */
10335 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10337 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10338 * We could also decide to ignore the passed elem_size and get it
10339 * from the array object, to reduce the number of methods we generate:
10340 * the additional cost is 3 memory loads and a non-immediate mul.
10342 for (i = 1; i < rank; ++i) {
10343 /* realidx = idxi - bounds [i].lower_bound */
10344 mono_mb_emit_ldarg (mb, 1 + i);
10345 mono_mb_emit_ldloc (mb, bounds);
10346 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10347 mono_mb_emit_byte (mb, CEE_ADD);
10348 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10349 mono_mb_emit_byte (mb, CEE_SUB);
10350 mono_mb_emit_stloc (mb, realidx);
10351 /* if (realidx >= bounds [i].length) goto exeception; */
10352 mono_mb_emit_ldloc (mb, realidx);
10353 mono_mb_emit_ldloc (mb, bounds);
10354 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10355 mono_mb_emit_byte (mb, CEE_ADD);
10356 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10357 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10358 /* ind = ind * bounds [i].length + realidx */
10359 mono_mb_emit_ldloc (mb, ind);
10360 mono_mb_emit_ldloc (mb, bounds);
10361 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10362 mono_mb_emit_byte (mb, CEE_ADD);
10363 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10364 mono_mb_emit_byte (mb, CEE_MUL);
10365 mono_mb_emit_ldloc (mb, realidx);
10366 mono_mb_emit_byte (mb, CEE_ADD);
10367 mono_mb_emit_stloc (mb, ind);
10370 /* return array->vector + ind * element_size */
10371 mono_mb_emit_ldarg (mb, 0);
10372 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10373 mono_mb_emit_ldloc (mb, ind);
10375 mono_mb_emit_icon (mb, elem_size);
10377 /* Load arr->vtable->klass->sizes.element_class */
10378 mono_mb_emit_ldarg (mb, 0);
10379 mono_mb_emit_byte (mb, CEE_CONV_I);
10380 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10381 mono_mb_emit_byte (mb, CEE_ADD);
10382 mono_mb_emit_byte (mb, CEE_LDIND_I);
10383 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10384 mono_mb_emit_byte (mb, CEE_ADD);
10385 mono_mb_emit_byte (mb, CEE_LDIND_I);
10386 /* sizes is an union, so this reads sizes.element_size */
10387 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10388 mono_mb_emit_byte (mb, CEE_ADD);
10389 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10391 mono_mb_emit_byte (mb, CEE_MUL);
10392 mono_mb_emit_byte (mb, CEE_ADD);
10393 mono_mb_emit_byte (mb, CEE_RET);
10395 /* patch the branches to get here and throw */
10396 for (i = 1; i < rank; ++i) {
10397 mono_mb_patch_branch (mb, branch_positions [i]);
10399 mono_mb_patch_branch (mb, branch_pos);
10400 /* throw exception */
10401 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10403 g_free (branch_positions);
10404 #endif /* DISABLE_JIT */
10406 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10407 info->d.element_addr.rank = rank;
10408 info->d.element_addr.elem_size = elem_size;
10409 ret = mono_mb_create (mb, sig, 4, info);
10412 /* cache the result */
10414 mono_marshal_lock ();
10415 for (i = 0; i < elem_addr_cache_next; ++i) {
10416 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10417 /* FIXME: free ret */
10418 ret = elem_addr_cache [i].method;
10424 if (elem_addr_cache_next >= elem_addr_cache_size) {
10425 int new_size = elem_addr_cache_size + 4;
10426 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10427 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10428 g_free (elem_addr_cache);
10429 elem_addr_cache = new_array;
10430 elem_addr_cache_size = new_size;
10432 elem_addr_cache [elem_addr_cache_next].rank = rank;
10433 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10434 elem_addr_cache [elem_addr_cache_next].method = ret;
10435 elem_addr_cache_next ++;
10437 mono_marshal_unlock ();
10442 * mono_marshal_get_array_accessor_wrapper:
10444 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10447 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10449 MonoMethodSignature *sig;
10450 MonoMethodBuilder *mb;
10454 MonoGenericContext *ctx = NULL;
10455 MonoMethod *orig_method = NULL;
10456 MonoGenericContainer *container = NULL;
10460 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10461 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10462 * FIXME: Use generic methods.
10469 g_assert_not_reached ();
10471 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10472 if ((res = mono_marshal_find_in_cache (cache, method)))
10476 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10479 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10481 #ifndef DISABLE_JIT
10482 /* Call the method */
10484 mono_mb_emit_ldarg (mb, 0);
10485 for (i = 0; i < sig->param_count; i++)
10486 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10490 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10491 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10493 mono_mb_emit_managed_call (mb, method, NULL);
10495 mono_mb_emit_byte (mb, CEE_RET);
10498 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10499 info->d.array_accessor.method = method;
10503 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10504 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10506 res = mono_mb_create_and_cache_full (cache, method,
10507 mb, sig, sig->param_count + 16,
10516 static inline void*
10517 mono_marshal_alloc_co_task_mem (size_t size)
10519 if ((gulong)size == 0)
10520 /* This returns a valid pointer for size 0 on MS.NET */
10523 return g_try_malloc ((gulong)size);
10528 mono_marshal_alloc (gulong size, MonoError *error)
10532 mono_error_init (error);
10534 res = mono_marshal_alloc_co_task_mem (size);
10536 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10541 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10543 ves_icall_marshal_alloc (gulong size)
10546 void *ret = mono_marshal_alloc (size, &error);
10547 if (!mono_error_ok (&error)) {
10548 mono_error_set_pending_exception (&error);
10557 mono_marshal_free_co_task_mem (void *ptr)
10565 mono_marshal_free (gpointer ptr)
10567 mono_marshal_free_co_task_mem (ptr);
10571 mono_marshal_free_array (gpointer *ptr, int size)
10578 for (i = 0; i < size; i++)
10584 mono_marshal_string_to_utf16 (MonoString *s)
10586 return s ? mono_string_chars (s) : NULL;
10589 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10591 mono_marshal_string_to_utf16_copy (MonoString *s)
10597 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10598 if (!mono_error_ok (&error)) {
10599 mono_error_set_pending_exception (&error);
10602 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10603 res [mono_string_length (s)] = 0;
10609 * mono_marshal_set_last_error:
10611 * This function is invoked to set the last error value from a P/Invoke call
10612 * which has SetLastError set.
10615 mono_marshal_set_last_error (void)
10618 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10620 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10625 mono_marshal_set_last_error_windows (int error)
10628 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10633 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10634 gpointer dest, gint32 length)
10639 MONO_CHECK_ARG_NULL (src,);
10640 MONO_CHECK_ARG_NULL (dest,);
10642 if (src->obj.vtable->klass->rank != 1) {
10643 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10646 if (start_index < 0) {
10647 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10651 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10654 if (start_index + length > mono_array_length (src)) {
10655 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10659 element_size = mono_array_element_size (src->obj.vtable->klass);
10661 /* no references should be involved */
10662 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10664 memcpy (dest, source_addr, length * element_size);
10668 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10669 MonoArray *dest, gint32 length)
10674 MONO_CHECK_ARG_NULL (src,);
10675 MONO_CHECK_ARG_NULL (dest,);
10677 if (dest->obj.vtable->klass->rank != 1) {
10678 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10681 if (start_index < 0) {
10682 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10686 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10689 if (start_index + length > mono_array_length (dest)) {
10690 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10693 element_size = mono_array_element_size (dest->obj.vtable->klass);
10695 /* no references should be involved */
10696 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10698 memcpy (dest_addr, src, length * element_size);
10702 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10707 return mono_string_new (mono_domain_get (), ptr);
10711 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10714 MonoString *result = NULL;
10715 mono_error_init (&error);
10717 mono_error_set_argument_null (&error, "ptr", "");
10719 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10720 mono_error_set_pending_exception (&error);
10725 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10728 MonoString *res = NULL;
10729 MonoDomain *domain = mono_domain_get ();
10739 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10740 if (!mono_error_ok (&error)) {
10741 mono_error_set_pending_exception (&error);
10748 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10751 MonoString *res = NULL;
10752 MonoDomain *domain = mono_domain_get ();
10754 mono_error_init (&error);
10758 mono_error_set_argument_null (&error, "ptr", "");
10760 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10763 if (!mono_error_ok (&error))
10764 mono_error_set_pending_exception (&error);
10769 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10771 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10775 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10781 MONO_CHECK_ARG_NULL (rtype, 0);
10783 type = rtype->type;
10784 klass = mono_class_from_mono_type (type);
10785 if (!mono_class_init (klass)) {
10786 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10790 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10792 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10793 return sizeof (gpointer);
10794 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10796 MonoException *exc;
10798 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10799 exc = mono_get_exception_argument ("t", msg);
10801 mono_set_pending_exception (exc);
10805 return mono_class_native_size (klass, NULL);
10809 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10812 MonoMethod *method;
10815 MONO_CHECK_ARG_NULL (obj,);
10816 MONO_CHECK_ARG_NULL (dst,);
10818 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10822 pa [2] = &delete_old;
10824 mono_runtime_invoke_checked (method, NULL, pa, &error);
10825 if (!mono_error_ok (&error))
10826 mono_error_set_pending_exception (&error);
10830 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10832 MonoMethod *method;
10835 mono_error_init (error);
10837 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10842 mono_runtime_invoke_checked (method, NULL, pa, error);
10846 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10851 MONO_CHECK_ARG_NULL (src,);
10852 MONO_CHECK_ARG_NULL (dst,);
10854 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10856 if (t->type == MONO_TYPE_VALUETYPE) {
10857 MonoException *exc;
10860 tmp = g_strdup_printf ("Destination is a boxed value type.");
10861 exc = mono_get_exception_argument ("dst", tmp);
10864 mono_set_pending_exception (exc);
10868 ptr_to_structure (src, dst, &error);
10869 if (!mono_error_ok (&error))
10870 mono_error_set_pending_exception (&error);
10874 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10878 MonoDomain *domain = mono_domain_get ();
10883 MONO_CHECK_ARG_NULL (type, NULL);
10885 klass = mono_class_from_mono_type (type->type);
10886 if (!mono_class_init (klass)) {
10887 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10891 res = mono_object_new_checked (domain, klass, &error);
10892 if (!mono_error_ok (&error)) {
10893 mono_error_set_pending_exception (&error);
10897 ptr_to_structure (src, res, &error);
10898 if (!mono_error_ok (&error)) {
10899 mono_error_set_pending_exception (&error);
10907 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10910 MonoMarshalType *info;
10913 int match_index = -1;
10915 MONO_CHECK_ARG_NULL (type, 0);
10916 MONO_CHECK_ARG_NULL (field_name, 0);
10918 fname = mono_string_to_utf8_checked (field_name, &error);
10919 if (mono_error_set_pending_exception (&error))
10921 klass = mono_class_from_mono_type (type->type);
10922 if (!mono_class_init (klass)) {
10923 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10927 while (klass && match_index == -1) {
10928 MonoClassField* field;
10930 gpointer iter = NULL;
10931 while ((field = mono_class_get_fields (klass, &iter))) {
10932 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10934 if (!strcmp (fname, mono_field_get_name (field))) {
10941 if (match_index == -1)
10942 klass = klass->parent;
10947 if(match_index == -1) {
10948 MonoException* exc;
10951 /* Get back original class instance */
10952 klass = mono_class_from_mono_type (type->type);
10954 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10955 exc = mono_get_exception_argument ("fieldName", tmp);
10958 mono_set_pending_exception ((MonoException*)exc);
10962 info = mono_marshal_load_type_info (klass);
10963 return info->fields [match_index].offset;
10968 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10971 char *ret = mono_string_to_utf8_checked (string, &error);
10972 mono_error_set_pending_exception (&error);
10977 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10979 if (string == NULL)
10982 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10984 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10985 res [mono_string_length (string)] = 0;
10989 #endif /* !HOST_WIN32 */
10992 mono_struct_delete_old (MonoClass *klass, char *ptr)
10994 MonoMarshalType *info;
10997 info = mono_marshal_load_type_info (klass);
10999 for (i = 0; i < info->num_fields; i++) {
11000 MonoMarshalConv conv;
11001 MonoType *ftype = info->fields [i].field->type;
11004 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11007 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11008 klass->unicode, &conv);
11010 cpos = ptr + info->fields [i].offset;
11013 case MONO_MARSHAL_CONV_NONE:
11014 if (MONO_TYPE_ISSTRUCT (ftype)) {
11015 mono_struct_delete_old (ftype->data.klass, cpos);
11019 case MONO_MARSHAL_CONV_STR_LPWSTR:
11020 /* We assume this field points inside a MonoString */
11022 case MONO_MARSHAL_CONV_STR_LPTSTR:
11023 #ifdef TARGET_WIN32
11024 /* We assume this field points inside a MonoString
11028 case MONO_MARSHAL_CONV_STR_LPSTR:
11029 case MONO_MARSHAL_CONV_STR_BSTR:
11030 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11031 case MONO_MARSHAL_CONV_STR_TBSTR:
11032 case MONO_MARSHAL_CONV_STR_UTF8STR:
11033 mono_marshal_free (*(gpointer *)cpos);
11043 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11047 MONO_CHECK_ARG_NULL (src,);
11048 MONO_CHECK_ARG_NULL (type,);
11050 klass = mono_class_from_mono_type (type->type);
11051 if (!mono_class_init (klass)) {
11052 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11056 mono_struct_delete_old (klass, (char *)src);
11060 static inline void *
11061 mono_marshal_alloc_hglobal (size_t size)
11063 return g_try_malloc (size);
11068 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11071 size_t s = (size_t)size;
11074 /* This returns a valid pointer for size 0 on MS.NET */
11077 res = mono_marshal_alloc_hglobal (s);
11080 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11088 static inline gpointer
11089 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11091 return g_try_realloc (ptr, size);
11096 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11099 size_t s = (size_t)size;
11102 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11106 res = mono_marshal_realloc_hglobal (ptr, s);
11109 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11118 mono_marshal_free_hglobal (gpointer ptr)
11126 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11128 mono_marshal_free_hglobal (ptr);
11132 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11134 void *res = mono_marshal_alloc_co_task_mem (size);
11137 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11144 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11146 void *res = mono_marshal_alloc_co_task_mem (size);
11149 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11156 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11158 mono_marshal_free_co_task_mem (ptr);
11163 static inline gpointer
11164 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11166 return g_try_realloc (ptr, (gulong)size);
11171 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11173 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11176 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11183 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11185 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11189 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11191 MonoClass *klass = mono_type_get_class (type->type);
11192 if (!mono_class_init (klass)) {
11193 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11197 return mono_ftnptr_to_delegate (klass, ftn);
11201 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11203 return mono_delegate_to_ftnptr (delegate);
11207 * mono_marshal_is_loading_type_info:
11209 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11213 mono_marshal_is_loading_type_info (MonoClass *klass)
11215 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11217 return g_slist_find (loads_list, klass) != NULL;
11221 * mono_marshal_load_type_info:
11223 * Initialize klass->marshal_info using information from metadata. This function can
11224 * recursively call itself, and the caller is responsible to avoid that by calling
11225 * mono_marshal_is_loading_type_info () beforehand.
11227 * LOCKING: Acquires the loader lock.
11230 mono_marshal_load_type_info (MonoClass* klass)
11233 guint32 native_size = 0, min_align = 1, packing;
11234 MonoMarshalType *info;
11235 MonoClassField* field;
11238 GSList *loads_list;
11240 g_assert (klass != NULL);
11242 if (klass->marshal_info)
11243 return klass->marshal_info;
11245 if (!klass->inited)
11246 mono_class_init (klass);
11248 if (klass->marshal_info)
11249 return klass->marshal_info;
11252 * This function can recursively call itself, so we keep the list of classes which are
11253 * under initialization in a TLS list.
11255 g_assert (!mono_marshal_is_loading_type_info (klass));
11256 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11257 loads_list = g_slist_prepend (loads_list, klass);
11258 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11261 while ((field = mono_class_get_fields (klass, &iter))) {
11262 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11264 if (mono_field_is_deleted (field))
11269 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11271 /* The mempool is protected by the loader lock */
11272 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11273 info->num_fields = count;
11275 /* Try to find a size for this type in metadata */
11276 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11278 if (klass->parent) {
11279 int parent_size = mono_class_native_size (klass->parent, NULL);
11281 /* Add parent size to real size */
11282 native_size += parent_size;
11283 info->native_size = parent_size;
11286 packing = klass->packing_size ? klass->packing_size : 8;
11289 while ((field = mono_class_get_fields (klass, &iter))) {
11293 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11296 if (mono_field_is_deleted (field))
11298 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11299 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11300 NULL, NULL, &info->fields [j].mspec);
11302 info->fields [j].field = field;
11304 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11305 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11306 /* This field is a hack inserted by MCS to empty structures */
11311 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11312 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11313 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11314 &align, TRUE, klass->unicode);
11315 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11316 min_align = MAX (align, min_align);
11317 info->fields [j].offset = info->native_size;
11318 info->fields [j].offset += align - 1;
11319 info->fields [j].offset &= ~(align - 1);
11320 info->native_size = info->fields [j].offset + size;
11322 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11323 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11324 &align, TRUE, klass->unicode);
11325 min_align = MAX (align, min_align);
11326 info->fields [j].offset = field->offset - sizeof (MonoObject);
11327 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11333 if (klass->byval_arg.type == MONO_TYPE_PTR)
11334 info->native_size = sizeof (gpointer);
11336 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11337 info->native_size = MAX (native_size, info->native_size);
11339 * If the provided Size is equal or larger than the calculated size, and there
11340 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11342 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11343 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11346 min_align = MIN (min_align, packing);
11350 if (info->native_size & (min_align - 1)) {
11351 info->native_size += min_align - 1;
11352 info->native_size &= ~(min_align - 1);
11355 info->min_align = min_align;
11357 /* Update the class's blittable info, if the layouts don't match */
11358 if (info->native_size != mono_class_value_size (klass, NULL))
11359 klass->blittable = FALSE;
11361 /* If this is an array type, ensure that we have element info */
11362 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11363 mono_marshal_load_type_info (klass->element_class);
11366 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11367 loads_list = g_slist_remove (loads_list, klass);
11368 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11370 mono_marshal_lock ();
11371 if (!klass->marshal_info) {
11372 /*We do double-checking locking on marshal_info */
11373 mono_memory_barrier ();
11374 klass->marshal_info = info;
11376 mono_marshal_unlock ();
11378 return klass->marshal_info;
11382 * mono_class_native_size:
11385 * Returns: the native size of an object instance (when marshaled
11386 * to unmanaged code)
11389 mono_class_native_size (MonoClass *klass, guint32 *align)
11391 if (!klass->marshal_info) {
11392 if (mono_marshal_is_loading_type_info (klass)) {
11397 mono_marshal_load_type_info (klass);
11402 *align = klass->marshal_info->min_align;
11404 return klass->marshal_info->native_size;
11408 * mono_type_native_stack_size:
11409 * @t: the type to return the size it uses on the stack
11411 * Returns: the number of bytes required to hold an instance of this
11412 * type on the native stack
11415 mono_type_native_stack_size (MonoType *t, guint32 *align)
11419 g_assert (t != NULL);
11425 *align = sizeof (gpointer);
11426 return sizeof (gpointer);
11430 case MONO_TYPE_BOOLEAN:
11431 case MONO_TYPE_CHAR:
11442 case MONO_TYPE_STRING:
11443 case MONO_TYPE_OBJECT:
11444 case MONO_TYPE_CLASS:
11445 case MONO_TYPE_SZARRAY:
11446 case MONO_TYPE_PTR:
11447 case MONO_TYPE_FNPTR:
11448 case MONO_TYPE_ARRAY:
11449 *align = sizeof (gpointer);
11450 return sizeof (gpointer);
11455 *align = MONO_ABI_ALIGNOF (double);
11459 *align = MONO_ABI_ALIGNOF (gint64);
11461 case MONO_TYPE_GENERICINST:
11462 if (!mono_type_generic_inst_is_valuetype (t)) {
11463 *align = sizeof (gpointer);
11464 return sizeof (gpointer);
11467 case MONO_TYPE_TYPEDBYREF:
11468 case MONO_TYPE_VALUETYPE: {
11470 MonoClass *klass = mono_class_from_mono_type (t);
11472 if (klass->enumtype)
11473 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11475 size = mono_class_native_size (klass, align);
11476 *align = *align + 3;
11486 g_error ("type 0x%02x unknown", t->type);
11492 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11493 gboolean as_field, gboolean unicode)
11495 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11498 switch (native_type) {
11499 case MONO_NATIVE_BOOLEAN:
11502 case MONO_NATIVE_I1:
11503 case MONO_NATIVE_U1:
11506 case MONO_NATIVE_I2:
11507 case MONO_NATIVE_U2:
11508 case MONO_NATIVE_VARIANTBOOL:
11511 case MONO_NATIVE_I4:
11512 case MONO_NATIVE_U4:
11513 case MONO_NATIVE_ERROR:
11516 case MONO_NATIVE_I8:
11517 case MONO_NATIVE_U8:
11518 *align = MONO_ABI_ALIGNOF (gint64);
11520 case MONO_NATIVE_R4:
11523 case MONO_NATIVE_R8:
11524 *align = MONO_ABI_ALIGNOF (double);
11526 case MONO_NATIVE_INT:
11527 case MONO_NATIVE_UINT:
11528 case MONO_NATIVE_LPSTR:
11529 case MONO_NATIVE_LPWSTR:
11530 case MONO_NATIVE_LPTSTR:
11531 case MONO_NATIVE_BSTR:
11532 case MONO_NATIVE_ANSIBSTR:
11533 case MONO_NATIVE_TBSTR:
11534 case MONO_NATIVE_UTF8STR:
11535 case MONO_NATIVE_LPARRAY:
11536 case MONO_NATIVE_SAFEARRAY:
11537 case MONO_NATIVE_IUNKNOWN:
11538 case MONO_NATIVE_IDISPATCH:
11539 case MONO_NATIVE_INTERFACE:
11540 case MONO_NATIVE_ASANY:
11541 case MONO_NATIVE_FUNC:
11542 case MONO_NATIVE_LPSTRUCT:
11543 *align = MONO_ABI_ALIGNOF (gpointer);
11544 return sizeof (gpointer);
11545 case MONO_NATIVE_STRUCT:
11546 klass = mono_class_from_mono_type (type);
11547 if (klass == mono_defaults.object_class &&
11548 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11552 return mono_class_native_size (klass, align);
11553 case MONO_NATIVE_BYVALTSTR: {
11554 int esize = unicode ? 2: 1;
11557 return mspec->data.array_data.num_elem * esize;
11559 case MONO_NATIVE_BYVALARRAY: {
11560 // FIXME: Have to consider ArraySubType
11562 klass = mono_class_from_mono_type (type);
11563 if (klass->element_class == mono_defaults.char_class) {
11564 esize = unicode ? 2 : 1;
11567 esize = mono_class_native_size (klass->element_class, align);
11570 return mspec->data.array_data.num_elem * esize;
11572 case MONO_NATIVE_CUSTOM:
11573 *align = sizeof (gpointer);
11574 return sizeof (gpointer);
11576 case MONO_NATIVE_CURRENCY:
11577 case MONO_NATIVE_VBBYREFSTR:
11579 g_error ("native type %02x not implemented", native_type);
11582 g_assert_not_reached ();
11586 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11588 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11597 t = &o->vtable->klass->byval_arg;
11601 case MONO_TYPE_PTR:
11604 case MONO_TYPE_BOOLEAN:
11607 case MONO_TYPE_CHAR:
11612 return mono_object_unbox (o);
11614 case MONO_TYPE_STRING:
11615 switch (string_encoding) {
11616 case MONO_NATIVE_LPWSTR:
11617 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11618 case MONO_NATIVE_LPSTR:
11619 case MONO_NATIVE_UTF8STR:
11620 // Same code path, because in Mono, we treated strings as Utf8
11621 return mono_string_to_utf8str ((MonoString*)o);
11623 g_warning ("marshaling conversion %d not implemented", string_encoding);
11624 g_assert_not_reached ();
11627 case MONO_TYPE_CLASS:
11628 case MONO_TYPE_VALUETYPE: {
11629 MonoMethod *method;
11632 MonoBoolean delete_old = FALSE;
11634 klass = t->data.klass;
11636 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11639 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11640 klass->blittable || klass->enumtype))
11641 return mono_object_unbox (o);
11643 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11644 if (!mono_error_ok (&error)) {
11645 mono_error_set_pending_exception (&error);
11649 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11650 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11654 pa [2] = &delete_old;
11656 mono_runtime_invoke_checked (method, NULL, pa, &error);
11657 if (!mono_error_ok (&error)) {
11658 mono_error_set_pending_exception (&error);
11668 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11672 /* This is a JIT icall, it sets the pending exception */
11674 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11683 t = &o->vtable->klass->byval_arg;
11685 case MONO_TYPE_STRING:
11686 switch (string_encoding) {
11687 case MONO_NATIVE_LPWSTR:
11688 case MONO_NATIVE_LPSTR:
11689 case MONO_NATIVE_UTF8STR:
11690 mono_marshal_free (ptr);
11693 g_warning ("marshaling conversion %d not implemented", string_encoding);
11694 g_assert_not_reached ();
11697 case MONO_TYPE_CLASS:
11698 case MONO_TYPE_VALUETYPE: {
11699 klass = t->data.klass;
11701 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11702 klass->blittable || klass->enumtype))
11705 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11706 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11712 mono_runtime_invoke_checked (method, NULL, pa, &error);
11713 if (!mono_error_ok (&error)) {
11714 mono_error_set_pending_exception (&error);
11719 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11720 mono_struct_delete_old (klass, (char *)ptr);
11723 mono_marshal_free (ptr);
11732 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11734 MonoMethodSignature *sig, *csig;
11735 MonoMethodBuilder *mb;
11740 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11741 mb->method->slot = -1;
11743 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11744 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11746 sig = mono_method_signature (method);
11747 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11748 csig->generic_param_count = 0;
11750 #ifndef DISABLE_JIT
11751 mono_mb_emit_ldarg (mb, 0);
11752 for (i = 0; i < csig->param_count; i++)
11753 mono_mb_emit_ldarg (mb, i + 1);
11754 mono_mb_emit_managed_call (mb, method, NULL);
11755 mono_mb_emit_byte (mb, CEE_RET);
11757 /* We can corlib internal methods */
11758 mb->skip_visibility = TRUE;
11760 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11761 info->d.generic_array_helper.method = method;
11762 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11770 * The mono_win32_compat_* functions are implementations of inline
11771 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11772 * although not exported by kernel32.
11774 * We map the appropiate kernel32 entries to these functions using
11775 * dllmaps declared in the global etc/mono/config.
11779 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11781 if (!dest || !source)
11784 memcpy (dest, source, length);
11788 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11790 memset (dest, fill, length);
11794 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11796 if (!dest || !source)
11799 memmove (dest, source, length);
11803 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11805 memset (dest, 0, length);
11809 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11814 for (i = 0; i < len; ++i)
11818 g_assert (i < len);
11821 while (byte && !(byte & 1))
11823 g_assert (byte == 1);
11826 *bitmask = buf [i];
11830 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11832 MonoMethodBuilder *mb;
11833 MonoMethodSignature *sig, *csig;
11834 MonoExceptionClause *clause;
11839 int i, param_count, sig_size, pos_leave;
11843 // FIXME: we need to store the exception into a MonoHandle
11844 g_assert (!mono_threads_is_coop_enabled ());
11846 klass = method->klass;
11847 image = method->klass->image;
11849 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11851 if ((res = mono_marshal_find_in_cache (cache, method)))
11854 sig = mono_method_signature (method);
11855 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11857 /* add "this" and exception param */
11858 param_count = sig->param_count + sig->hasthis + 1;
11860 /* dup & extend signature */
11861 csig = mono_metadata_signature_alloc (image, param_count);
11862 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11863 memcpy (csig, sig, sig_size);
11864 csig->param_count = param_count;
11867 csig->call_convention = MONO_CALL_DEFAULT;
11869 if (sig->hasthis) {
11871 csig->params [0] = &klass->byval_arg;
11872 /* move params up by one */
11873 for (i = 0; i < sig->param_count; i++)
11874 csig->params [i + 1] = sig->params [i];
11877 /* setup exception param as byref+[out] */
11878 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11879 &mono_defaults.exception_class->byval_arg);
11880 csig->params [param_count - 1]->byref = 1;
11881 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11883 /* convert struct return to object */
11884 if (MONO_TYPE_ISSTRUCT (sig->ret))
11885 csig->ret = &mono_defaults.object_class->byval_arg;
11887 #ifndef DISABLE_JIT
11888 /* local 0 (temp for exception object) */
11889 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11891 /* local 1 (temp for result) */
11892 if (!MONO_TYPE_IS_VOID (sig->ret))
11893 mono_mb_add_local (mb, sig->ret);
11895 /* clear exception arg */
11896 mono_mb_emit_ldarg (mb, param_count - 1);
11897 mono_mb_emit_byte (mb, CEE_LDNULL);
11898 mono_mb_emit_byte (mb, CEE_STIND_REF);
11901 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11902 clause->try_offset = mono_mb_get_label (mb);
11904 /* push method's args */
11905 for (i = 0; i < param_count - 1; i++) {
11909 mono_mb_emit_ldarg (mb, i);
11911 /* get the byval type of the param */
11912 klass = mono_class_from_mono_type (csig->params [i]);
11913 type = &klass->byval_arg;
11915 /* unbox struct args */
11916 if (MONO_TYPE_ISSTRUCT (type)) {
11917 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11919 /* byref args & and the "this" arg must remain a ptr.
11920 Otherwise make a copy of the value type */
11921 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11922 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11924 csig->params [i] = &mono_defaults.object_class->byval_arg;
11929 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11930 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11932 mono_mb_emit_op (mb, CEE_CALL, method);
11934 /* save result at local 1 */
11935 if (!MONO_TYPE_IS_VOID (sig->ret))
11936 mono_mb_emit_stloc (mb, 1);
11938 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11941 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11942 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11943 clause->data.catch_class = mono_defaults.object_class;
11945 clause->handler_offset = mono_mb_get_label (mb);
11947 /* store exception at local 0 */
11948 mono_mb_emit_stloc (mb, 0);
11949 mono_mb_emit_ldarg (mb, param_count - 1);
11950 mono_mb_emit_ldloc (mb, 0);
11951 mono_mb_emit_byte (mb, CEE_STIND_REF);
11952 mono_mb_emit_branch (mb, CEE_LEAVE);
11954 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11956 mono_mb_set_clauses (mb, 1, clause);
11958 mono_mb_patch_branch (mb, pos_leave);
11961 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11962 mono_mb_emit_ldloc (mb, 1);
11964 /* box the return value */
11965 if (MONO_TYPE_ISSTRUCT (sig->ret))
11966 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11969 mono_mb_emit_byte (mb, CEE_RET);
11972 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11979 * mono_marshal_free_dynamic_wrappers:
11981 * Free wrappers of the dynamic method METHOD.
11984 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11986 MonoImage *image = method->klass->image;
11988 g_assert (method_is_dynamic (method));
11990 /* This could be called during shutdown */
11991 if (marshal_mutex_initialized)
11992 mono_marshal_lock ();
11994 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11995 * they could be shared with other methods ?
11997 if (image->wrapper_caches.runtime_invoke_direct_cache)
11998 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11999 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12000 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12001 // FIXME: Need to clear the caches in other images as well
12002 if (image->delegate_bound_static_invoke_cache)
12003 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12005 if (marshal_mutex_initialized)
12006 mono_marshal_unlock ();
12010 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12012 g_assert (ftnptr_eh_callback);
12013 ftnptr_eh_callback (gchandle);
12017 ftnptr_eh_callback_default (guint32 gchandle)
12019 MonoException *exc;
12020 gpointer stackdata;
12022 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12024 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12026 mono_gchandle_free (gchandle);
12028 mono_raise_exception (exc);
12032 * mono_install_ftnptr_eh_callback:
12034 * Install a callback that should be called when there is a managed exception
12035 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12036 * managed exception to a native exception, to properly unwind the native
12037 * stack; this native exception will then be converted back to a managed
12038 * exception in their managed-to-native wrapper.
12041 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12043 ftnptr_eh_callback = callback;
12046 static MonoThreadInfo*
12047 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12049 MonoThreadInfo *info = mono_thread_info_current ();
12051 mono_stack_mark_init (info, stackmark);
12052 mono_error_init (error);
12057 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12059 mono_stack_mark_pop (info, stackmark);
12060 mono_error_set_pending_exception (error);