2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #include "metadata/marshal.h"
23 #include "metadata/method-builder.h"
24 #include "metadata/tabledefs.h"
25 #include "metadata/exception.h"
26 #include "metadata/appdomain.h"
27 #include "mono/metadata/abi-details.h"
28 #include "mono/metadata/debug-helpers.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/class-internals.h"
32 #include "mono/metadata/metadata-internals.h"
33 #include "mono/metadata/domain-internals.h"
34 #include "mono/metadata/gc-internals.h"
35 #include "mono/metadata/threads-types.h"
36 #include "mono/metadata/string-icalls.h"
37 #include "mono/metadata/attrdefs.h"
38 #include "mono/metadata/gc-internals.h"
39 #include "mono/metadata/cominterop.h"
40 #include "mono/metadata/remoting.h"
41 #include "mono/metadata/reflection-internals.h"
42 #include "mono/metadata/threadpool-ms.h"
43 #include "mono/utils/mono-counters.h"
44 #include "mono/utils/mono-tls.h"
45 #include "mono/utils/mono-memory-model.h"
46 #include "mono/utils/atomic.h"
47 #include <mono/utils/mono-threads.h>
48 #include <mono/utils/mono-threads-coop.h>
49 #include <mono/utils/mono-error-internals.h>
54 /* #define DEBUG_RUNTIME_CODE */
56 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
60 #include "mono/cil/opcode.def"
66 * This mutex protects the various marshalling related caches in MonoImage
67 * and a few other data structures static to this file.
69 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
70 * runtime locking latice. Which means it can take simple locks suck as the image lock.
72 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
73 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
74 static mono_mutex_t marshal_mutex;
75 static gboolean marshal_mutex_initialized;
77 static MonoNativeTlsKey last_error_tls_id;
79 static MonoNativeTlsKey load_type_info_tls_id;
81 static gboolean use_aot_wrappers;
83 static void ftnptr_eh_callback_default (guint32 gchandle);
85 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
88 delegate_hash_table_add (MonoDelegate *d);
91 delegate_hash_table_remove (MonoDelegate *d);
94 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
97 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
100 mono_struct_delete_old (MonoClass *klass, char *ptr);
103 mono_marshal_string_to_utf16 (MonoString *s);
106 mono_marshal_string_to_utf16_copy (MonoString *s);
109 mono_string_to_lpstr (MonoString *string_obj);
111 static MonoStringBuilder *
112 mono_string_utf8_to_builder2 (char *text);
114 static MonoStringBuilder *
115 mono_string_utf16_to_builder2 (gunichar2 *text);
118 mono_string_new_len_wrapper (const char *text, guint length);
121 mono_string_from_byvalstr (const char *data, int len);
124 mono_string_from_byvalwstr (gunichar2 *data, int len);
127 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
130 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
133 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
136 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
138 static MonoAsyncResult *
139 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
142 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
145 mono_marshal_set_last_error_windows (int error);
148 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
150 static void init_safe_handle (void);
153 ves_icall_marshal_alloc (gulong size);
156 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
159 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
162 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
165 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
168 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
171 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
174 mono_delegate_to_ftnptr (MonoDelegate *delegate);
177 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
180 mono_array_to_savearray (MonoArray *array);
183 mono_array_to_lparray (MonoArray *array);
186 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
189 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
192 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
195 mono_array_to_savearray (MonoArray *array);
198 mono_array_to_lparray (MonoArray *array);
201 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
204 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
206 /* Lazy class loading functions */
207 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
208 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
209 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
210 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
212 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
213 static MonoMethod *sh_dangerous_add_ref;
214 static MonoMethod *sh_dangerous_release;
219 sh_dangerous_add_ref = mono_class_get_method_from_name (
220 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
221 sh_dangerous_release = mono_class_get_method_from_name (
222 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
226 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
228 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
230 mono_register_jit_icall (func, name, sig, no_wrapper);
234 mono_signature_no_pinvoke (MonoMethod *method)
236 MonoMethodSignature *sig = mono_method_signature (method);
238 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
239 sig->pinvoke = FALSE;
246 mono_marshal_init_tls (void)
248 mono_native_tls_alloc (&last_error_tls_id, NULL);
249 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
253 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
256 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
257 mono_error_set_pending_exception (&error);
262 ves_icall_mono_string_from_utf16 (gunichar2 *data)
265 MonoString *result = mono_string_from_utf16_checked (data, &error);
266 mono_error_set_pending_exception (&error);
271 ves_icall_mono_string_to_utf8 (MonoString *str)
274 char *result = mono_string_to_utf8_checked (str, &error);
275 mono_error_set_pending_exception (&error);
280 mono_marshal_init (void)
282 static gboolean module_initialized = FALSE;
284 if (!module_initialized) {
285 module_initialized = TRUE;
286 mono_os_mutex_init_recursive (&marshal_mutex);
287 marshal_mutex_initialized = TRUE;
289 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
290 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
291 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
292 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
293 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
294 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
295 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
296 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
297 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
298 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
299 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
300 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
301 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
302 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
303 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
304 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
305 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
306 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
307 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
308 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
309 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
310 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
311 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
312 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
313 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
314 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
315 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
316 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
317 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
318 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
319 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
320 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
321 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
322 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
323 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
324 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
325 register_icall (g_free, "g_free", "void ptr", FALSE);
326 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
327 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
328 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
329 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
330 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
331 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
332 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
333 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
334 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
335 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
336 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
337 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
338 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
339 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
340 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
342 mono_cominterop_init ();
343 mono_remoting_init ();
348 mono_marshal_cleanup (void)
350 mono_cominterop_cleanup ();
352 mono_native_tls_free (load_type_info_tls_id);
353 mono_native_tls_free (last_error_tls_id);
354 mono_os_mutex_destroy (&marshal_mutex);
355 marshal_mutex_initialized = FALSE;
359 mono_marshal_lock_internal (void)
361 mono_marshal_lock ();
365 mono_marshal_unlock_internal (void)
367 mono_marshal_unlock ();
370 /* This is a JIT icall, it sets the pending exception and return NULL on error */
372 mono_delegate_to_ftnptr (MonoDelegate *delegate)
375 MonoMethod *method, *wrapper;
377 uint32_t target_handle = 0;
382 if (delegate->delegate_trampoline)
383 return delegate->delegate_trampoline;
385 klass = ((MonoObject *)delegate)->vtable->klass;
386 g_assert (klass->delegate);
388 method = delegate->method;
389 if (delegate->method_is_virtual)
390 method = mono_object_get_virtual_method (delegate->target, method);
392 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
393 const char *exc_class, *exc_arg;
396 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
398 g_assert (exc_class);
399 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
405 if (delegate->target) {
406 /* Produce a location which can be embedded in JITted code */
407 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
410 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
412 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
416 // Add the delegate to the delegate hash table
417 delegate_hash_table_add (delegate);
419 /* when the object is collected, collect the dynamic method, too */
420 mono_object_register_finalizer ((MonoObject*)delegate);
422 return delegate->delegate_trampoline;
425 if (target_handle != 0)
426 mono_gchandle_free (target_handle);
427 mono_error_set_pending_exception (&error);
432 * this hash table maps from a delegate trampoline object to a weak reference
433 * of the delegate. As an optimizations with a non-moving GC we store the
434 * object pointer itself, otherwise we use a GC handle.
436 static GHashTable *delegate_hash_table;
439 delegate_hash_table_new (void) {
440 return g_hash_table_new (NULL, NULL);
444 delegate_hash_table_remove (MonoDelegate *d)
446 guint32 gchandle = 0;
448 mono_marshal_lock ();
449 if (delegate_hash_table == NULL)
450 delegate_hash_table = delegate_hash_table_new ();
451 if (mono_gc_is_moving ())
452 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
453 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
454 mono_marshal_unlock ();
455 if (gchandle && mono_gc_is_moving ())
456 mono_gchandle_free (gchandle);
460 delegate_hash_table_add (MonoDelegate *d)
463 guint32 old_gchandle;
465 mono_marshal_lock ();
466 if (delegate_hash_table == NULL)
467 delegate_hash_table = delegate_hash_table_new ();
468 if (mono_gc_is_moving ()) {
469 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
470 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
471 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
473 mono_gchandle_free (old_gchandle);
475 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
477 mono_marshal_unlock ();
481 * mono_marshal_use_aot_wrappers:
483 * Instructs this module to use AOT compatible wrappers.
486 mono_marshal_use_aot_wrappers (gboolean use)
488 use_aot_wrappers = use;
492 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
495 MonoCustomAttrInfo *cinfo;
496 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
498 /* The attribute is only available in Net 2.0 */
499 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
501 * The pinvoke attributes are stored in a real custom attribute so we have to
504 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
505 if (!mono_error_ok (&error)) {
506 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
507 mono_error_cleanup (&error);
509 if (cinfo && !mono_runtime_get_no_exec ()) {
510 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
512 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
514 if (!mono_error_ok (&error)) {
515 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
516 mono_error_cleanup (&error);
520 mono_custom_attrs_free (cinfo);
525 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
527 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
536 mono_marshal_lock ();
537 if (delegate_hash_table == NULL)
538 delegate_hash_table = delegate_hash_table_new ();
540 if (mono_gc_is_moving ()) {
541 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
542 mono_marshal_unlock ();
544 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
548 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
549 mono_marshal_unlock ();
552 /* This is a native function, so construct a delegate for it */
553 MonoMethodSignature *sig;
555 MonoMarshalSpec **mspecs;
556 MonoMethod *invoke = mono_get_delegate_invoke (klass);
557 MonoMethodPInvoke piinfo;
558 MonoObject *this_obj;
561 if (use_aot_wrappers) {
562 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
563 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
564 if (!is_ok (&error)) {
565 mono_error_set_pending_exception (&error);
569 memset (&piinfo, 0, sizeof (piinfo));
570 parse_unmanaged_function_pointer_attr (klass, &piinfo);
572 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
573 mono_method_get_marshal_info (invoke, mspecs);
574 /* Freed below so don't alloc from mempool */
575 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
578 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
581 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
583 mono_metadata_free_marshal_spec (mspecs [i]);
588 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
589 if (!mono_error_ok (&error)) {
590 mono_error_set_pending_exception (&error);
593 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
594 if (mono_error_set_pending_exception (&error))
596 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
597 if (mono_error_set_pending_exception (&error))
601 if (d->object.vtable->domain != mono_domain_get ()) {
602 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
610 mono_delegate_free_ftnptr (MonoDelegate *delegate)
615 delegate_hash_table_remove (delegate);
617 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
619 if (!delegate->target) {
620 /* The wrapper method is shared between delegates -> no need to free it */
629 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
632 method = mono_jit_info_get_method (ji);
633 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
635 /*the target gchandle is the first entry after size and the wrapper itself.*/
636 gchandle = GPOINTER_TO_UINT (method_data [2]);
639 mono_gchandle_free (gchandle);
641 mono_runtime_free_method (mono_object_domain (delegate), method);
645 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
647 mono_string_from_byvalstr (const char *data, int max_len)
650 MonoDomain *domain = mono_domain_get ();
656 while (len < max_len - 1 && data [len])
659 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
660 mono_error_set_pending_exception (&error);
664 /* This is a JIT icall, it sets the pending exception and return NULL on error */
666 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
669 MonoString *res = NULL;
670 MonoDomain *domain = mono_domain_get ();
676 while (data [len]) len++;
678 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
679 if (!mono_error_ok (&error)) {
680 mono_error_set_pending_exception (&error);
687 mono_array_to_savearray (MonoArray *array)
692 g_assert_not_reached ();
697 mono_array_to_lparray (MonoArray *array)
700 gpointer *nativeArray = NULL;
701 int nativeArraySize = 0;
711 klass = array->obj.vtable->klass;
713 switch (klass->element_class->byval_arg.type) {
715 g_assert_not_reached ();
717 case MONO_TYPE_CLASS:
718 nativeArraySize = array->max_length;
719 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
720 for(i = 0; i < nativeArraySize; ++i)
721 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
724 case MONO_TYPE_BOOLEAN:
737 case MONO_TYPE_VALUETYPE:
741 case MONO_TYPE_GENERICINST:
742 case MONO_TYPE_OBJECT:
743 case MONO_TYPE_ARRAY:
744 case MONO_TYPE_SZARRAY:
745 case MONO_TYPE_STRING:
747 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
748 g_assert_not_reached ();
751 return array->vector;
755 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
766 klass = array->obj.vtable->klass;
768 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
769 for(i = 0; i < array->max_length; ++i)
770 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
777 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
779 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
781 if (elclass == mono_defaults.byte_class) {
782 GError *error = NULL;
786 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
789 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
793 g_error_free (error);
796 g_assert_not_reached ();
800 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
802 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
805 /* This is a JIT icall, it sets the pending exception and returns on error */
807 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
809 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
811 if (elclass == mono_defaults.byte_class) {
813 GError *error = NULL;
815 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
817 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
818 g_error_free (error);
822 memcpy (native_arr, as, MIN (strlen (as), elnum));
825 g_assert_not_reached ();
830 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
832 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
835 static MonoStringBuilder *
836 mono_string_builder_new (int starting_string_length)
838 static MonoClass *string_builder_class;
839 static MonoMethod *sb_ctor;
840 static void *args [1];
843 int initial_len = starting_string_length;
849 MonoMethodDesc *desc;
852 string_builder_class = mono_class_get_string_builder_class ();
853 g_assert (string_builder_class);
854 desc = mono_method_desc_new (":.ctor(int)", FALSE);
855 m = mono_method_desc_search_in_class (desc, string_builder_class);
857 mono_method_desc_free (desc);
858 mono_memory_barrier ();
862 // We make a new array in the _to_builder function, so this
863 // array will always be garbage collected.
864 args [0] = &initial_len;
866 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
867 mono_error_assert_ok (&error);
870 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
871 g_assert (exc == NULL);
872 mono_error_assert_ok (&error);
874 g_assert (sb->chunkChars->max_length >= initial_len);
880 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
882 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
883 gunichar2 *charSrc = (gunichar2 *)text;
884 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
886 sb->chunkLength = string_len;
892 mono_string_utf16_to_builder2 (gunichar2 *text)
898 for (len = 0; text [len] != 0; ++len);
900 MonoStringBuilder *sb = mono_string_builder_new (len);
901 mono_string_utf16_to_builder (sb, text);
907 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
912 int len = strlen (text);
913 if (len > mono_string_builder_capacity (sb))
914 len = mono_string_builder_capacity (sb);
916 GError *error = NULL;
918 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
921 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
922 mono_string_utf16_to_builder_copy (sb, ut, copied);
924 g_error_free (error);
930 mono_string_utf8_to_builder2 (char *text)
935 int len = strlen (text);
936 MonoStringBuilder *sb = mono_string_builder_new (len);
937 mono_string_utf8_to_builder (sb, text);
944 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
950 for (len = 0; text [len] != 0; ++len);
952 if (len > mono_string_builder_capacity (sb))
953 len = mono_string_builder_capacity (sb);
955 mono_string_utf16_to_builder_copy (sb, text, len);
959 * mono_string_builder_to_utf8:
960 * @sb: the string builder
962 * Converts to utf8 the contents of the MonoStringBuilder.
964 * Returns: a utf8 string with the contents of the StringBuilder.
966 * The return value must be released with mono_marshal_free.
968 * This is a JIT icall, it sets the pending exception and returns NULL on error.
971 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
974 GError *gerror = NULL;
979 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
981 guint str_len = mono_string_builder_string_length (sb);
983 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
986 g_error_free (gerror);
987 mono_marshal_free (str_utf16);
988 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
991 guint len = mono_string_builder_capacity (sb) + 1;
992 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
993 if (!mono_error_ok (&error)) {
994 mono_marshal_free (str_utf16);
996 mono_error_set_pending_exception (&error);
1000 g_assert (str_len < len);
1001 memcpy (res, tmp, str_len * sizeof (gchar));
1002 res[str_len] = '\0';
1004 mono_marshal_free (str_utf16);
1011 * mono_string_builder_to_utf16:
1012 * @sb: the string builder
1014 * Converts to utf16 the contents of the MonoStringBuilder.
1016 * Returns: a utf16 string with the contents of the StringBuilder.
1018 * The return value must be released with mono_marshal_free.
1020 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1023 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1030 g_assert (sb->chunkChars);
1032 guint len = mono_string_builder_capacity (sb);
1037 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1038 if (!mono_error_ok (&error)) {
1039 mono_error_set_pending_exception (&error);
1048 MonoStringBuilder* chunk = sb;
1050 if (chunk->chunkLength > 0) {
1051 // Check that we will not overrun our boundaries.
1052 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1054 if (chunk->chunkLength <= len) {
1055 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1057 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1060 len -= chunk->chunkLength;
1062 chunk = chunk->chunkPrevious;
1063 } while (chunk != NULL);
1068 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1070 mono_string_to_lpstr (MonoString *s)
1075 GError *error = NULL;
1081 as = CoTaskMemAlloc (1);
1086 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1088 MonoException *exc = mono_get_exception_argument ("string", error->message);
1089 g_error_free (error);
1090 mono_set_pending_exception (exc);
1093 as = CoTaskMemAlloc (len + 1);
1094 memcpy (as, tmp, len + 1);
1100 char *result = mono_string_to_utf8_checked (s, &error);
1101 mono_error_set_pending_exception (&error);
1107 mono_string_to_ansibstr (MonoString *string_obj)
1109 g_error ("UnmanagedMarshal.BStr is not implemented.");
1114 * mono_string_to_byvalstr:
1115 * @dst: Where to store the null-terminated utf8 decoded string.
1116 * @src: the MonoString to copy.
1117 * @size: the maximum number of bytes to copy.
1119 * Copies the MonoString pointed to by @src as a utf8 string
1120 * into @dst, it copies at most @size bytes into the destination.
1123 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1129 g_assert (dst != NULL);
1130 g_assert (size > 0);
1132 memset (dst, 0, size);
1136 s = mono_string_to_utf8_checked (src, &error);
1137 if (mono_error_set_pending_exception (&error))
1139 len = MIN (size, strlen (s));
1142 memcpy (dst, s, len);
1147 * mono_string_to_byvalwstr:
1148 * @dst: Where to store the null-terminated utf16 decoded string.
1149 * @src: the MonoString to copy.
1150 * @size: the maximum number of bytes to copy.
1152 * Copies the MonoString pointed to by @src as a utf16 string into
1153 * @dst, it copies at most @size bytes into the destination (including
1154 * a terminating 16-bit zero terminator).
1157 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1161 g_assert (dst != NULL);
1162 g_assert (size > 1);
1165 memset (dst, 0, size * 2);
1169 len = MIN (size, (mono_string_length (src)));
1170 memcpy (dst, mono_string_chars (src), size * 2);
1171 if (size <= mono_string_length (src))
1173 *((gunichar2 *) dst + len) = 0;
1176 /* this is an icall, it sets the pending exception and returns NULL on error */
1178 mono_string_new_len_wrapper (const char *text, guint length)
1181 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1182 mono_error_set_pending_exception (&error);
1189 * mono_mb_emit_exception_marshal_directive:
1191 * This function assumes ownership of MSG, which should be malloc-ed.
1194 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1199 s = mono_image_strdup (mb->method->klass->image, msg);
1204 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1207 #endif /* !DISABLE_JIT */
1210 mono_type_to_ldind (MonoType *type)
1216 switch (type->type) {
1218 return CEE_LDIND_I1;
1220 case MONO_TYPE_BOOLEAN:
1221 return CEE_LDIND_U1;
1223 return CEE_LDIND_I2;
1225 case MONO_TYPE_CHAR:
1226 return CEE_LDIND_U2;
1228 return CEE_LDIND_I4;
1230 return CEE_LDIND_U4;
1234 case MONO_TYPE_FNPTR:
1236 case MONO_TYPE_CLASS:
1237 case MONO_TYPE_STRING:
1238 case MONO_TYPE_OBJECT:
1239 case MONO_TYPE_SZARRAY:
1240 case MONO_TYPE_ARRAY:
1241 return CEE_LDIND_REF;
1244 return CEE_LDIND_I8;
1246 return CEE_LDIND_R4;
1248 return CEE_LDIND_R8;
1249 case MONO_TYPE_VALUETYPE:
1250 if (type->data.klass->enumtype) {
1251 type = mono_class_enum_basetype (type->data.klass);
1255 case MONO_TYPE_TYPEDBYREF:
1257 case MONO_TYPE_GENERICINST:
1258 type = &type->data.generic_class->container_class->byval_arg;
1261 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1267 mono_type_to_stind (MonoType *type)
1270 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1274 switch (type->type) {
1277 case MONO_TYPE_BOOLEAN:
1278 return CEE_STIND_I1;
1281 case MONO_TYPE_CHAR:
1282 return CEE_STIND_I2;
1285 return CEE_STIND_I4;
1289 case MONO_TYPE_FNPTR:
1291 case MONO_TYPE_CLASS:
1292 case MONO_TYPE_STRING:
1293 case MONO_TYPE_OBJECT:
1294 case MONO_TYPE_SZARRAY:
1295 case MONO_TYPE_ARRAY:
1296 return CEE_STIND_REF;
1299 return CEE_STIND_I8;
1301 return CEE_STIND_R4;
1303 return CEE_STIND_R8;
1304 case MONO_TYPE_VALUETYPE:
1305 if (type->data.klass->enumtype) {
1306 type = mono_class_enum_basetype (type->data.klass);
1310 case MONO_TYPE_TYPEDBYREF:
1312 case MONO_TYPE_GENERICINST:
1313 type = &type->data.generic_class->container_class->byval_arg;
1316 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1324 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1327 case MONO_MARSHAL_CONV_BOOL_I4:
1328 mono_mb_emit_ldloc (mb, 1);
1329 mono_mb_emit_ldloc (mb, 0);
1330 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1331 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1332 mono_mb_emit_byte (mb, 3);
1333 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1334 mono_mb_emit_byte (mb, CEE_BR_S);
1335 mono_mb_emit_byte (mb, 1);
1336 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1337 mono_mb_emit_byte (mb, CEE_STIND_I1);
1339 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1340 mono_mb_emit_ldloc (mb, 1);
1341 mono_mb_emit_ldloc (mb, 0);
1342 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1343 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1344 mono_mb_emit_byte (mb, 3);
1345 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1346 mono_mb_emit_byte (mb, CEE_BR_S);
1347 mono_mb_emit_byte (mb, 1);
1348 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1349 mono_mb_emit_byte (mb, CEE_STIND_I1);
1351 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1352 MonoClass *eklass = NULL;
1355 if (type->type == MONO_TYPE_SZARRAY) {
1356 eklass = type->data.klass;
1358 g_assert_not_reached ();
1361 esize = mono_class_native_size (eklass, NULL);
1363 /* create a new array */
1364 mono_mb_emit_ldloc (mb, 1);
1365 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1366 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1367 mono_mb_emit_byte (mb, CEE_STIND_REF);
1369 if (eklass->blittable) {
1370 /* copy the elements */
1371 mono_mb_emit_ldloc (mb, 1);
1372 mono_mb_emit_byte (mb, CEE_LDIND_I);
1373 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1374 mono_mb_emit_byte (mb, CEE_ADD);
1375 mono_mb_emit_ldloc (mb, 0);
1376 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1377 mono_mb_emit_byte (mb, CEE_PREFIX1);
1378 mono_mb_emit_byte (mb, CEE_CPBLK);
1381 int array_var, src_var, dst_var, index_var;
1382 guint32 label2, label3;
1384 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1385 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1386 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1389 mono_mb_emit_ldloc (mb, 1);
1390 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1391 mono_mb_emit_stloc (mb, array_var);
1393 /* save the old src pointer */
1394 mono_mb_emit_ldloc (mb, 0);
1395 mono_mb_emit_stloc (mb, src_var);
1396 /* save the old dst pointer */
1397 mono_mb_emit_ldloc (mb, 1);
1398 mono_mb_emit_stloc (mb, dst_var);
1400 /* Emit marshalling loop */
1401 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1402 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1403 mono_mb_emit_stloc (mb, index_var);
1406 label2 = mono_mb_get_label (mb);
1407 mono_mb_emit_ldloc (mb, index_var);
1408 mono_mb_emit_ldloc (mb, array_var);
1409 mono_mb_emit_byte (mb, CEE_LDLEN);
1410 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1412 /* src is already set */
1415 mono_mb_emit_ldloc (mb, array_var);
1416 mono_mb_emit_ldloc (mb, index_var);
1417 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1418 mono_mb_emit_stloc (mb, 1);
1420 /* Do the conversion */
1421 emit_struct_conv (mb, eklass, TRUE);
1424 mono_mb_emit_add_to_local (mb, index_var, 1);
1426 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1428 mono_mb_patch_branch (mb, label3);
1430 /* restore the old src pointer */
1431 mono_mb_emit_ldloc (mb, src_var);
1432 mono_mb_emit_stloc (mb, 0);
1433 /* restore the old dst pointer */
1434 mono_mb_emit_ldloc (mb, dst_var);
1435 mono_mb_emit_stloc (mb, 1);
1439 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1440 MonoClass *eclass = mono_defaults.char_class;
1442 /* create a new array */
1443 mono_mb_emit_ldloc (mb, 1);
1444 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1445 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1446 mono_mb_emit_byte (mb, CEE_STIND_REF);
1448 mono_mb_emit_ldloc (mb, 1);
1449 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1450 mono_mb_emit_ldloc (mb, 0);
1451 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1452 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1455 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1456 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1457 mono_mb_emit_ldloc (mb, 1);
1458 mono_mb_emit_ldloc (mb, 0);
1459 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1460 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1462 mono_mb_emit_ldloc (mb, 1);
1463 mono_mb_emit_ldloc (mb, 0);
1464 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1466 mono_mb_emit_byte (mb, CEE_STIND_REF);
1468 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1469 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1470 mono_mb_emit_ldloc (mb, 1);
1471 mono_mb_emit_ldloc (mb, 0);
1472 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1473 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1475 mono_mb_emit_ldloc (mb, 1);
1476 mono_mb_emit_ldloc (mb, 0);
1477 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1479 mono_mb_emit_byte (mb, CEE_STIND_REF);
1481 case MONO_MARSHAL_CONV_STR_LPTSTR:
1482 mono_mb_emit_ldloc (mb, 1);
1483 mono_mb_emit_ldloc (mb, 0);
1484 mono_mb_emit_byte (mb, CEE_LDIND_I);
1486 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1488 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1490 mono_mb_emit_byte (mb, CEE_STIND_REF);
1492 case MONO_MARSHAL_CONV_STR_LPSTR:
1493 mono_mb_emit_ldloc (mb, 1);
1494 mono_mb_emit_ldloc (mb, 0);
1495 mono_mb_emit_byte (mb, CEE_LDIND_I);
1496 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1497 mono_mb_emit_byte (mb, CEE_STIND_REF);
1499 case MONO_MARSHAL_CONV_STR_LPWSTR:
1500 mono_mb_emit_ldloc (mb, 1);
1501 mono_mb_emit_ldloc (mb, 0);
1502 mono_mb_emit_byte (mb, CEE_LDIND_I);
1503 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1504 mono_mb_emit_byte (mb, CEE_STIND_REF);
1506 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1507 MonoClass *klass = mono_class_from_mono_type (type);
1508 int src_var, dst_var;
1510 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1511 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1513 /* *dst = new object */
1514 mono_mb_emit_ldloc (mb, 1);
1515 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1516 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1517 mono_mb_emit_byte (mb, CEE_STIND_REF);
1519 /* save the old src pointer */
1520 mono_mb_emit_ldloc (mb, 0);
1521 mono_mb_emit_stloc (mb, src_var);
1522 /* save the old dst pointer */
1523 mono_mb_emit_ldloc (mb, 1);
1524 mono_mb_emit_stloc (mb, dst_var);
1526 /* dst = pointer to newly created object data */
1527 mono_mb_emit_ldloc (mb, 1);
1528 mono_mb_emit_byte (mb, CEE_LDIND_I);
1529 mono_mb_emit_icon (mb, sizeof (MonoObject));
1530 mono_mb_emit_byte (mb, CEE_ADD);
1531 mono_mb_emit_stloc (mb, 1);
1533 emit_struct_conv (mb, klass, TRUE);
1535 /* restore the old src pointer */
1536 mono_mb_emit_ldloc (mb, src_var);
1537 mono_mb_emit_stloc (mb, 0);
1538 /* restore the old dst pointer */
1539 mono_mb_emit_ldloc (mb, dst_var);
1540 mono_mb_emit_stloc (mb, 1);
1543 case MONO_MARSHAL_CONV_DEL_FTN: {
1544 MonoClass *klass = mono_class_from_mono_type (type);
1546 mono_mb_emit_ldloc (mb, 1);
1547 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1548 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1549 mono_mb_emit_ldloc (mb, 0);
1550 mono_mb_emit_byte (mb, CEE_LDIND_I);
1551 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1552 mono_mb_emit_byte (mb, CEE_STIND_REF);
1555 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1556 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1560 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1561 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1562 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1563 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1565 #endif /* DISABLE_COM */
1567 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1569 * Passing SafeHandles as ref does not allow the unmanaged code
1570 * to change the SafeHandle value. If the value is changed,
1571 * we should issue a diagnostic exception (NotSupportedException)
1572 * that informs the user that changes to handles in unmanaged code
1575 * Since we currently have no access to the original
1576 * SafeHandle that was used during the marshalling,
1577 * for now we just ignore this, and ignore/discard any
1578 * changes that might have happened to the handle.
1583 case MONO_MARSHAL_CONV_HANDLEREF: {
1585 * Passing HandleRefs in a struct that is ref()ed does not
1586 * copy the values back to the HandleRef
1591 case MONO_MARSHAL_CONV_STR_BSTR:
1592 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1593 case MONO_MARSHAL_CONV_STR_TBSTR:
1594 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1596 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1598 mono_mb_emit_exception_marshal_directive (mb, msg);
1605 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1608 if (!ind_store_type)
1609 ind_store_type = &dummy;
1610 *ind_store_type = CEE_STIND_I;
1612 case MONO_MARSHAL_CONV_STR_LPWSTR:
1613 return mono_marshal_string_to_utf16;
1614 case MONO_MARSHAL_CONV_LPWSTR_STR:
1615 *ind_store_type = CEE_STIND_REF;
1616 return ves_icall_mono_string_from_utf16;
1617 case MONO_MARSHAL_CONV_LPTSTR_STR:
1618 *ind_store_type = CEE_STIND_REF;
1619 return mono_string_new_wrapper;
1620 case MONO_MARSHAL_CONV_LPSTR_STR:
1621 *ind_store_type = CEE_STIND_REF;
1622 return mono_string_new_wrapper;
1623 case MONO_MARSHAL_CONV_STR_LPTSTR:
1625 return mono_marshal_string_to_utf16;
1627 return mono_string_to_lpstr;
1629 case MONO_MARSHAL_CONV_STR_LPSTR:
1630 return mono_string_to_lpstr;
1631 case MONO_MARSHAL_CONV_STR_BSTR:
1632 return mono_string_to_bstr;
1633 case MONO_MARSHAL_CONV_BSTR_STR:
1634 *ind_store_type = CEE_STIND_REF;
1635 return mono_string_from_bstr_icall;
1636 case MONO_MARSHAL_CONV_STR_TBSTR:
1637 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1638 return mono_string_to_ansibstr;
1639 case MONO_MARSHAL_CONV_SB_LPSTR:
1640 return mono_string_builder_to_utf8;
1641 case MONO_MARSHAL_CONV_SB_LPTSTR:
1643 return mono_string_builder_to_utf16;
1645 return mono_string_builder_to_utf8;
1647 case MONO_MARSHAL_CONV_SB_LPWSTR:
1648 return mono_string_builder_to_utf16;
1649 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1650 return mono_array_to_savearray;
1651 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1652 return mono_array_to_lparray;
1653 case MONO_MARSHAL_FREE_LPARRAY:
1654 return mono_free_lparray;
1655 case MONO_MARSHAL_CONV_DEL_FTN:
1656 return mono_delegate_to_ftnptr;
1657 case MONO_MARSHAL_CONV_FTN_DEL:
1658 *ind_store_type = CEE_STIND_REF;
1659 return mono_ftnptr_to_delegate;
1660 case MONO_MARSHAL_CONV_LPSTR_SB:
1661 *ind_store_type = CEE_STIND_REF;
1662 return mono_string_utf8_to_builder;
1663 case MONO_MARSHAL_CONV_LPTSTR_SB:
1664 *ind_store_type = CEE_STIND_REF;
1666 return mono_string_utf16_to_builder;
1668 return mono_string_utf8_to_builder;
1670 case MONO_MARSHAL_CONV_LPWSTR_SB:
1671 *ind_store_type = CEE_STIND_REF;
1672 return mono_string_utf16_to_builder;
1673 case MONO_MARSHAL_FREE_ARRAY:
1674 return mono_marshal_free_array;
1675 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1676 return mono_string_to_byvalstr;
1677 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1678 return mono_string_to_byvalwstr;
1680 g_assert_not_reached ();
1687 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1693 case MONO_MARSHAL_CONV_BOOL_I4:
1694 mono_mb_emit_ldloc (mb, 1);
1695 mono_mb_emit_ldloc (mb, 0);
1696 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1697 mono_mb_emit_byte (mb, CEE_STIND_I4);
1699 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1700 mono_mb_emit_ldloc (mb, 1);
1701 mono_mb_emit_ldloc (mb, 0);
1702 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1703 mono_mb_emit_byte (mb, CEE_NEG);
1704 mono_mb_emit_byte (mb, CEE_STIND_I2);
1706 case MONO_MARSHAL_CONV_STR_LPWSTR:
1707 case MONO_MARSHAL_CONV_STR_LPSTR:
1708 case MONO_MARSHAL_CONV_STR_LPTSTR:
1709 case MONO_MARSHAL_CONV_STR_BSTR:
1710 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1711 case MONO_MARSHAL_CONV_STR_TBSTR: {
1714 /* free space if free == true */
1715 mono_mb_emit_ldloc (mb, 2);
1716 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1717 mono_mb_emit_ldloc (mb, 1);
1718 mono_mb_emit_byte (mb, CEE_LDIND_I);
1719 mono_mb_emit_icall (mb, g_free);
1720 mono_mb_patch_short_branch (mb, pos);
1722 mono_mb_emit_ldloc (mb, 1);
1723 mono_mb_emit_ldloc (mb, 0);
1724 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1725 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1726 mono_mb_emit_byte (mb, stind_op);
1729 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1730 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1731 case MONO_MARSHAL_CONV_DEL_FTN:
1732 mono_mb_emit_ldloc (mb, 1);
1733 mono_mb_emit_ldloc (mb, 0);
1734 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1735 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1736 mono_mb_emit_byte (mb, stind_op);
1738 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1739 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1742 mono_mb_emit_ldloc (mb, 1); /* dst */
1743 mono_mb_emit_ldloc (mb, 0);
1744 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1745 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1746 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1749 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1750 MonoClass *eklass = NULL;
1753 if (type->type == MONO_TYPE_SZARRAY) {
1754 eklass = type->data.klass;
1756 g_assert_not_reached ();
1759 if (eklass->valuetype)
1760 esize = mono_class_native_size (eklass, NULL);
1762 esize = sizeof (gpointer);
1764 mono_mb_emit_ldloc (mb, 0);
1765 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1766 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1768 if (eklass->blittable) {
1769 mono_mb_emit_ldloc (mb, 1);
1770 mono_mb_emit_ldloc (mb, 0);
1771 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1772 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1773 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1774 mono_mb_emit_byte (mb, CEE_PREFIX1);
1775 mono_mb_emit_byte (mb, CEE_CPBLK);
1777 int array_var, src_var, dst_var, index_var;
1778 guint32 label2, label3;
1780 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1781 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1782 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1785 mono_mb_emit_ldloc (mb, 0);
1786 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1787 mono_mb_emit_stloc (mb, array_var);
1789 /* save the old src pointer */
1790 mono_mb_emit_ldloc (mb, 0);
1791 mono_mb_emit_stloc (mb, src_var);
1792 /* save the old dst pointer */
1793 mono_mb_emit_ldloc (mb, 1);
1794 mono_mb_emit_stloc (mb, dst_var);
1796 /* Emit marshalling loop */
1797 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1798 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1799 mono_mb_emit_stloc (mb, index_var);
1802 label2 = mono_mb_get_label (mb);
1803 mono_mb_emit_ldloc (mb, index_var);
1804 mono_mb_emit_ldloc (mb, array_var);
1805 mono_mb_emit_byte (mb, CEE_LDLEN);
1806 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1809 mono_mb_emit_ldloc (mb, array_var);
1810 mono_mb_emit_ldloc (mb, index_var);
1811 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1812 mono_mb_emit_stloc (mb, 0);
1814 /* dst is already set */
1816 /* Do the conversion */
1817 emit_struct_conv (mb, eklass, FALSE);
1820 mono_mb_emit_add_to_local (mb, index_var, 1);
1822 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1824 mono_mb_patch_branch (mb, label3);
1826 /* restore the old src pointer */
1827 mono_mb_emit_ldloc (mb, src_var);
1828 mono_mb_emit_stloc (mb, 0);
1829 /* restore the old dst pointer */
1830 mono_mb_emit_ldloc (mb, dst_var);
1831 mono_mb_emit_stloc (mb, 1);
1834 mono_mb_patch_branch (mb, pos);
1837 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1838 mono_mb_emit_ldloc (mb, 0);
1839 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1840 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1842 mono_mb_emit_ldloc (mb, 1);
1843 mono_mb_emit_ldloc (mb, 0);
1844 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1845 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1846 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1847 mono_mb_patch_short_branch (mb, pos);
1850 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1851 int src_var, dst_var;
1853 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1854 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1856 mono_mb_emit_ldloc (mb, 0);
1857 mono_mb_emit_byte (mb, CEE_LDIND_I);
1858 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1860 /* save the old src pointer */
1861 mono_mb_emit_ldloc (mb, 0);
1862 mono_mb_emit_stloc (mb, src_var);
1863 /* save the old dst pointer */
1864 mono_mb_emit_ldloc (mb, 1);
1865 mono_mb_emit_stloc (mb, dst_var);
1867 /* src = pointer to object data */
1868 mono_mb_emit_ldloc (mb, 0);
1869 mono_mb_emit_byte (mb, CEE_LDIND_I);
1870 mono_mb_emit_icon (mb, sizeof (MonoObject));
1871 mono_mb_emit_byte (mb, CEE_ADD);
1872 mono_mb_emit_stloc (mb, 0);
1874 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1876 /* restore the old src pointer */
1877 mono_mb_emit_ldloc (mb, src_var);
1878 mono_mb_emit_stloc (mb, 0);
1879 /* restore the old dst pointer */
1880 mono_mb_emit_ldloc (mb, dst_var);
1881 mono_mb_emit_stloc (mb, 1);
1883 mono_mb_patch_branch (mb, pos);
1888 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1889 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1890 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1891 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1893 #endif /* DISABLE_COM */
1895 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1898 mono_mb_emit_ldloc (mb, 0);
1899 mono_mb_emit_byte (mb, CEE_LDIND_I);
1900 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1901 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1902 mono_mb_patch_branch (mb, pos);
1904 /* Pull the handle field from SafeHandle */
1905 mono_mb_emit_ldloc (mb, 1);
1906 mono_mb_emit_ldloc (mb, 0);
1907 mono_mb_emit_byte (mb, CEE_LDIND_I);
1908 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1909 mono_mb_emit_byte (mb, CEE_LDIND_I);
1910 mono_mb_emit_byte (mb, CEE_STIND_I);
1914 case MONO_MARSHAL_CONV_HANDLEREF: {
1915 mono_mb_emit_ldloc (mb, 1);
1916 mono_mb_emit_ldloc (mb, 0);
1917 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1918 mono_mb_emit_byte (mb, CEE_ADD);
1919 mono_mb_emit_byte (mb, CEE_LDIND_I);
1920 mono_mb_emit_byte (mb, CEE_STIND_I);
1925 g_error ("marshalling conversion %d not implemented", conv);
1931 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1932 MonoMarshalNative string_encoding)
1934 MonoMarshalType *info;
1938 emit_struct_conv(mb, klass->parent, to_object);
1940 info = mono_marshal_load_type_info (klass);
1942 if (info->native_size == 0)
1945 if (klass->blittable) {
1946 int msize = mono_class_value_size (klass, NULL);
1947 g_assert (msize == info->native_size);
1948 mono_mb_emit_ldloc (mb, 1);
1949 mono_mb_emit_ldloc (mb, 0);
1950 mono_mb_emit_icon (mb, msize);
1951 mono_mb_emit_byte (mb, CEE_PREFIX1);
1952 mono_mb_emit_byte (mb, CEE_CPBLK);
1954 mono_mb_emit_add_to_local (mb, 0, msize);
1955 mono_mb_emit_add_to_local (mb, 1, msize);
1959 if (klass != mono_class_try_get_safehandle_class ()) {
1960 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1961 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1962 mono_type_full_name (&klass->byval_arg));
1963 mono_mb_emit_exception_marshal_directive (mb, msg);
1968 for (i = 0; i < info->num_fields; i++) {
1969 MonoMarshalNative ntype;
1970 MonoMarshalConv conv;
1971 MonoType *ftype = info->fields [i].field->type;
1974 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1976 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1979 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1982 msize = klass->instance_size - info->fields [i].field->offset;
1983 usize = info->native_size - info->fields [i].offset;
1985 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1986 usize = info->fields [i + 1].offset - info->fields [i].offset;
1989 if (klass != mono_class_try_get_safehandle_class ()){
1991 * FIXME: Should really check for usize==0 and msize>0, but we apply
1992 * the layout to the managed structure as well.
1995 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1996 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1997 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1998 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1999 "reference field at the same offset as another field.",
2000 mono_type_full_name (&klass->byval_arg));
2005 case MONO_MARSHAL_CONV_NONE: {
2008 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2009 g_assert (!ftype->byref);
2010 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2011 mono_mb_emit_ldloc (mb, 1);
2012 mono_mb_emit_ldloc (mb, 0);
2013 mono_mb_emit_byte (mb, CEE_LDIND_I);
2014 mono_mb_emit_byte (mb, CEE_STIND_I);
2025 case MONO_TYPE_BOOLEAN:
2028 case MONO_TYPE_CHAR:
2034 mono_mb_emit_ldloc (mb, 1);
2035 mono_mb_emit_ldloc (mb, 0);
2036 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2038 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2039 mono_mb_emit_byte (mb, CEE_STIND_I2);
2041 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2042 mono_mb_emit_byte (mb, CEE_STIND_I1);
2045 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2046 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2049 case MONO_TYPE_VALUETYPE: {
2050 int src_var, dst_var;
2052 if (ftype->data.klass->enumtype) {
2053 ftype = mono_class_enum_basetype (ftype->data.klass);
2057 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2058 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2060 /* save the old src pointer */
2061 mono_mb_emit_ldloc (mb, 0);
2062 mono_mb_emit_stloc (mb, src_var);
2063 /* save the old dst pointer */
2064 mono_mb_emit_ldloc (mb, 1);
2065 mono_mb_emit_stloc (mb, dst_var);
2067 emit_struct_conv (mb, ftype->data.klass, to_object);
2069 /* restore the old src pointer */
2070 mono_mb_emit_ldloc (mb, src_var);
2071 mono_mb_emit_stloc (mb, 0);
2072 /* restore the old dst pointer */
2073 mono_mb_emit_ldloc (mb, dst_var);
2074 mono_mb_emit_stloc (mb, 1);
2077 case MONO_TYPE_OBJECT: {
2080 static MonoMethod *variant_clear = NULL;
2081 static MonoMethod *get_object_for_native_variant = NULL;
2084 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2085 if (!get_object_for_native_variant)
2086 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2087 mono_mb_emit_ldloc (mb, 1);
2088 mono_mb_emit_ldloc (mb, 0);
2089 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2090 mono_mb_emit_byte (mb, CEE_STIND_REF);
2092 mono_mb_emit_ldloc (mb, 0);
2093 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2096 static MonoMethod *get_native_variant_for_object = NULL;
2098 if (!get_native_variant_for_object)
2099 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2101 mono_mb_emit_ldloc (mb, 0);
2102 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2103 mono_mb_emit_ldloc (mb, 1);
2104 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2107 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2108 mono_mb_emit_exception_marshal_directive (mb, msg);
2114 g_warning ("marshaling type %02x not implemented", ftype->type);
2115 g_assert_not_reached ();
2120 int src_var, dst_var;
2122 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2123 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2125 /* save the old src pointer */
2126 mono_mb_emit_ldloc (mb, 0);
2127 mono_mb_emit_stloc (mb, src_var);
2128 /* save the old dst pointer */
2129 mono_mb_emit_ldloc (mb, 1);
2130 mono_mb_emit_stloc (mb, dst_var);
2133 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2135 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2137 /* restore the old src pointer */
2138 mono_mb_emit_ldloc (mb, src_var);
2139 mono_mb_emit_stloc (mb, 0);
2140 /* restore the old dst pointer */
2141 mono_mb_emit_ldloc (mb, dst_var);
2142 mono_mb_emit_stloc (mb, 1);
2147 mono_mb_emit_add_to_local (mb, 0, usize);
2148 mono_mb_emit_add_to_local (mb, 1, msize);
2150 mono_mb_emit_add_to_local (mb, 0, msize);
2151 mono_mb_emit_add_to_local (mb, 1, usize);
2157 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2159 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2163 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2165 /* Call DestroyStructure */
2166 /* FIXME: Only do this if needed */
2167 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2168 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2169 mono_mb_emit_ldloc (mb, struct_var);
2170 mono_mb_emit_icall (mb, mono_struct_delete_old);
2174 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2176 int pos_noabort, pos_noex;
2178 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2179 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2180 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2181 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2183 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2184 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2186 mono_mb_emit_icall (mb, checkpoint_func);
2187 /* Throw the exception returned by the checkpoint function, if any */
2188 mono_mb_emit_byte (mb, CEE_DUP);
2189 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2190 mono_mb_emit_byte (mb, CEE_THROW);
2191 mono_mb_patch_branch (mb, pos_noex);
2192 mono_mb_emit_byte (mb, CEE_POP);
2194 mono_mb_patch_branch (mb, pos_noabort);
2198 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2200 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2203 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2207 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2209 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2213 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2215 emit_thread_interrupt_checkpoint (mb);
2219 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2221 emit_thread_force_interrupt_checkpoint (mb);
2224 #endif /* DISABLE_JIT */
2226 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2227 static MonoAsyncResult *
2228 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2231 MonoMulticastDelegate *mcast_delegate;
2235 g_assert (delegate);
2236 mcast_delegate = (MonoMulticastDelegate *) delegate;
2237 if (mcast_delegate->delegates != NULL) {
2238 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2242 #ifndef DISABLE_REMOTING
2243 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2244 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2245 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2246 /* If the target is a proxy, make a direct call. Is proxy's work
2247 // to make the call asynchronous.
2249 MonoMethodMessage *msg;
2250 MonoDelegate *async_callback;
2252 MonoAsyncResult *ares;
2254 MonoArray *out_args;
2255 method = delegate->method;
2257 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2258 if (mono_error_set_pending_exception (&error))
2260 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2261 if (mono_error_set_pending_exception (&error))
2263 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2264 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2265 MONO_OBJECT_SETREF (msg, async_result, ares);
2266 msg->call_type = CallType_BeginInvoke;
2269 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2270 if (!mono_error_ok (&error)) {
2271 mono_error_set_pending_exception (&error);
2275 mono_set_pending_exception ((MonoException *) exc);
2281 klass = delegate->object.vtable->klass;
2283 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2285 method = mono_get_delegate_invoke (klass);
2288 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2289 mono_error_set_pending_exception (&error);
2296 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2298 int i, params_var, tmp_var;
2300 /* allocate local (pointer) *params[] */
2301 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2302 /* allocate local (pointer) tmp */
2303 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2305 /* alloate space on stack to store an array of pointers to the arguments */
2306 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2307 mono_mb_emit_byte (mb, CEE_PREFIX1);
2308 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2309 mono_mb_emit_stloc (mb, params_var);
2312 mono_mb_emit_ldloc (mb, params_var);
2313 mono_mb_emit_stloc (mb, tmp_var);
2315 if (save_this && sig->hasthis) {
2316 mono_mb_emit_ldloc (mb, tmp_var);
2317 mono_mb_emit_ldarg_addr (mb, 0);
2318 mono_mb_emit_byte (mb, CEE_STIND_I);
2319 /* tmp = tmp + sizeof (gpointer) */
2320 if (sig->param_count)
2321 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2325 for (i = 0; i < sig->param_count; i++) {
2326 mono_mb_emit_ldloc (mb, tmp_var);
2327 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2328 mono_mb_emit_byte (mb, CEE_STIND_I);
2329 /* tmp = tmp + sizeof (gpointer) */
2330 if (i < (sig->param_count - 1))
2331 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2337 #endif /* DISABLE_JIT */
2340 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2344 GString *res = g_string_new ("");
2347 g_string_append (res, prefix);
2348 g_string_append_c (res, '_');
2351 mono_type_get_desc (res, sig->ret, FALSE);
2354 g_string_append (res, "__this__");
2356 for (i = 0; i < sig->param_count; ++i) {
2357 g_string_append_c (res, '_');
2358 mono_type_get_desc (res, sig->params [i], FALSE);
2361 g_string_free (res, FALSE);
2366 * mono_marshal_get_string_encoding:
2368 * Return the string encoding which should be used for a given parameter.
2370 static MonoMarshalNative
2371 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2373 /* First try the parameter marshal info */
2375 if (spec->native == MONO_NATIVE_LPARRAY) {
2376 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2377 return spec->data.array_data.elem_type;
2380 return spec->native;
2384 return MONO_NATIVE_LPSTR;
2386 /* Then try the method level marshal info */
2387 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2388 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2389 return MONO_NATIVE_LPSTR;
2390 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2391 return MONO_NATIVE_LPWSTR;
2392 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2394 return MONO_NATIVE_LPWSTR;
2396 return MONO_NATIVE_LPSTR;
2399 return MONO_NATIVE_LPSTR;
2403 static MonoMarshalConv
2404 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2406 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2409 case MONO_NATIVE_LPWSTR:
2410 return MONO_MARSHAL_CONV_STR_LPWSTR;
2411 case MONO_NATIVE_LPSTR:
2412 case MONO_NATIVE_VBBYREFSTR:
2413 return MONO_MARSHAL_CONV_STR_LPSTR;
2414 case MONO_NATIVE_LPTSTR:
2415 return MONO_MARSHAL_CONV_STR_LPTSTR;
2416 case MONO_NATIVE_BSTR:
2417 return MONO_MARSHAL_CONV_STR_BSTR;
2419 return MONO_MARSHAL_CONV_INVALID;
2423 static MonoMarshalConv
2424 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2426 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2429 case MONO_NATIVE_LPWSTR:
2430 return MONO_MARSHAL_CONV_SB_LPWSTR;
2432 case MONO_NATIVE_LPSTR:
2433 return MONO_MARSHAL_CONV_SB_LPSTR;
2435 case MONO_NATIVE_LPTSTR:
2436 return MONO_MARSHAL_CONV_SB_LPTSTR;
2439 return MONO_MARSHAL_CONV_INVALID;
2443 static MonoMarshalConv
2444 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2446 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2451 case MONO_NATIVE_LPWSTR:
2453 return MONO_MARSHAL_CONV_LPWSTR_STR;
2454 case MONO_NATIVE_LPSTR:
2455 case MONO_NATIVE_VBBYREFSTR:
2456 return MONO_MARSHAL_CONV_LPSTR_STR;
2457 case MONO_NATIVE_LPTSTR:
2458 return MONO_MARSHAL_CONV_LPTSTR_STR;
2459 case MONO_NATIVE_BSTR:
2460 return MONO_MARSHAL_CONV_BSTR_STR;
2462 return MONO_MARSHAL_CONV_INVALID;
2466 static MonoMarshalConv
2467 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2469 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2474 case MONO_NATIVE_LPWSTR:
2476 * mono_string_builder_to_utf16 does not allocate a
2477 * new buffer, so no need to free it.
2480 return MONO_MARSHAL_CONV_LPWSTR_SB;
2481 case MONO_NATIVE_LPSTR:
2482 return MONO_MARSHAL_CONV_LPSTR_SB;
2484 case MONO_NATIVE_LPTSTR:
2485 return MONO_MARSHAL_CONV_LPTSTR_SB;
2488 return MONO_MARSHAL_CONV_INVALID;
2493 * Return whenever a field of a native structure or an array member needs to
2497 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2499 MonoMarshalNative encoding;
2502 case MONO_TYPE_VALUETYPE:
2503 /* FIXME: Optimize this */
2505 case MONO_TYPE_OBJECT:
2506 case MONO_TYPE_CLASS:
2507 if (t->data.klass == mono_defaults.stringbuilder_class) {
2509 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2513 case MONO_TYPE_STRING:
2514 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2515 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2522 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2525 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2528 mono_marshal_lock ();
2531 g_hash_table_new (hash_func, equal_func);
2532 mono_memory_barrier ();
2535 mono_marshal_unlock ();
2541 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2543 return get_cache (var, hash_func, equal_func);
2547 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2551 mono_marshal_lock ();
2552 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2553 mono_marshal_unlock ();
2560 * Create a MonoMethod from MB, set INFO as wrapper info.
2563 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2564 int max_stack, WrapperInfo *info)
2568 res = mono_mb_create_method (mb, sig, max_stack);
2570 mono_marshal_set_wrapper_info (res, info);
2574 /* Create the method from the builder and place it in the cache */
2576 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2577 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2578 int max_stack, WrapperInfo *info, gboolean *out_found)
2585 mono_marshal_lock ();
2586 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2587 mono_marshal_unlock ();
2590 newm = mono_mb_create_method (mb, sig, max_stack);
2591 mono_marshal_lock ();
2592 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2595 g_hash_table_insert (cache, key, res);
2596 mono_marshal_set_wrapper_info (res, info);
2597 mono_marshal_unlock ();
2601 mono_marshal_unlock ();
2602 mono_free_method (newm);
2610 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2611 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2614 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2618 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2621 int wrapper_type = wrapper->wrapper_type;
2624 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2627 info = mono_marshal_get_wrapper_info (wrapper);
2629 switch (wrapper_type) {
2630 case MONO_WRAPPER_REMOTING_INVOKE:
2631 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2632 case MONO_WRAPPER_XDOMAIN_INVOKE:
2633 m = info->d.remoting.method;
2634 if (wrapper->is_inflated) {
2638 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2639 * contains an uninflated method.
2641 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2642 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2646 case MONO_WRAPPER_SYNCHRONIZED:
2647 m = info->d.synchronized.method;
2648 if (wrapper->is_inflated) {
2651 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2652 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2656 case MONO_WRAPPER_UNBOX:
2657 return info->d.unbox.method;
2658 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2659 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2660 return info->d.managed_to_native.method;
2663 case MONO_WRAPPER_RUNTIME_INVOKE:
2664 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2665 return info->d.runtime_invoke.method;
2674 * mono_marshal_get_wrapper_info:
2676 * Retrieve the WrapperInfo structure associated with WRAPPER.
2679 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2681 g_assert (wrapper->wrapper_type);
2683 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2687 * mono_marshal_set_wrapper_info:
2689 * Set the WrapperInfo structure associated with the wrapper
2690 * method METHOD to INFO.
2693 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2697 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2700 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2705 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2709 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2710 info->subtype = subtype;
2715 * get_wrapper_target_class:
2717 * Return the class where a wrapper method should be placed.
2720 get_wrapper_target_class (MonoImage *image)
2727 * - can't put all wrappers into an mscorlib class, because they reference
2728 * metadata (signature) so they should be put into the same image as the
2729 * method they wrap, so they are unloaded together.
2730 * - putting them into a class with a type initalizer could cause the
2731 * initializer to be executed which can be a problem if the wrappers are
2733 * - putting them into an inflated class can cause problems if the the
2734 * class is deleted because it references an image which is unloaded.
2735 * To avoid these problems, we put the wrappers into the <Module> class of
2738 if (image_is_dynamic (image)) {
2739 klass = ((MonoDynamicImage*)image)->wrappers_type;
2741 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2742 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2750 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2751 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2755 * check_generic_wrapper_cache:
2757 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2758 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2759 * generic method definition.
2762 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2765 MonoMethod *inst, *def;
2766 MonoGenericContext *ctx;
2768 g_assert (orig_method->is_inflated);
2769 ctx = mono_method_get_context (orig_method);
2772 * Look for the instance
2774 res = mono_marshal_find_in_cache (cache, key);
2779 * Look for the definition
2781 def = mono_marshal_find_in_cache (cache, def_key);
2784 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2785 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2787 mono_memory_barrier ();
2788 mono_marshal_lock ();
2789 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2791 g_hash_table_insert (cache, key, inst);
2794 mono_marshal_unlock ();
2801 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2804 MonoMethod *inst, *res;
2807 * We use the same cache for the generic definition and the instances.
2809 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2810 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2811 mono_memory_barrier ();
2812 mono_marshal_lock ();
2813 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2815 g_hash_table_insert (cache, key, inst);
2818 mono_marshal_unlock ();
2823 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2827 MonoMethod *inst, *def;
2830 * Look for the instance
2832 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2837 * Look for the definition
2839 def = mono_marshal_find_in_cache (cache, def_method->klass);
2841 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2842 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2845 mono_memory_barrier ();
2846 mono_marshal_lock ();
2847 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2849 g_hash_table_insert (cache, orig_method->klass, inst);
2852 mono_marshal_unlock ();
2859 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2862 MonoMethod *inst, *res;
2865 * We use the same cache for the generic definition and the instances.
2867 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2868 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2870 mono_memory_barrier ();
2871 mono_marshal_lock ();
2872 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2874 g_hash_table_insert (cache, orig_method->klass, inst);
2877 mono_marshal_unlock ();
2882 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2884 MonoMethodSignature *sig;
2885 MonoMethodBuilder *mb;
2890 MonoGenericContext *ctx = NULL;
2891 MonoMethod *orig_method = NULL;
2893 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2894 !strcmp (method->name, "BeginInvoke"));
2897 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2899 if (method->is_inflated) {
2900 orig_method = method;
2901 ctx = &((MonoMethodInflated*)method)->context;
2902 method = ((MonoMethodInflated*)method)->declaring;
2905 sig = mono_signature_no_pinvoke (method);
2911 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2912 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2916 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2917 (GHashFunc)mono_signature_hash,
2918 (GCompareFunc)mono_metadata_signature_equal);
2919 if ((res = mono_marshal_find_in_cache (cache, sig)))
2923 g_assert (sig->hasthis);
2925 name = mono_signature_to_name (sig, "begin_invoke");
2927 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2929 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2933 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2935 mono_mb_emit_ldarg (mb, 0);
2936 mono_mb_emit_ldloc (mb, params_var);
2937 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2938 mono_mb_emit_byte (mb, CEE_RET);
2943 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2944 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2946 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2953 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2955 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2958 MonoDomain *domain = mono_domain_get ();
2959 MonoAsyncResult *ares;
2960 MonoMethod *method = NULL;
2961 MonoMethodSignature *sig;
2962 MonoMethodMessage *msg;
2963 MonoObject *res, *exc;
2964 MonoArray *out_args;
2967 g_assert (delegate);
2969 if (!delegate->method_info) {
2970 g_assert (delegate->method);
2971 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2972 if (!mono_error_ok (&error)) {
2973 mono_error_set_pending_exception (&error);
2976 MONO_OBJECT_SETREF (delegate, method_info, rm);
2979 if (!delegate->method_info || !delegate->method_info->method)
2980 g_assert_not_reached ();
2982 klass = delegate->object.vtable->klass;
2984 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2985 g_assert (method != NULL);
2987 sig = mono_signature_no_pinvoke (method);
2989 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
2990 if (mono_error_set_pending_exception (&error))
2993 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2995 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."));
2999 if (ares->async_delegate != (MonoObject*)delegate) {
3000 mono_set_pending_exception (mono_get_exception_invalid_operation (
3001 "The IAsyncResult object provided does not match this delegate."));
3005 #ifndef DISABLE_REMOTING
3006 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3007 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3008 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3009 if (!mono_error_ok (&error)) {
3010 mono_error_set_pending_exception (&error);
3013 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3014 if (mono_error_set_pending_exception (&error))
3016 msg->call_type = CallType_EndInvoke;
3017 MONO_OBJECT_SETREF (msg, async_result, ares);
3018 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3019 if (!mono_error_ok (&error)) {
3020 mono_error_set_pending_exception (&error);
3026 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc, &error);
3027 if (mono_error_set_pending_exception (&error))
3032 if (((MonoException*)exc)->stack_trace) {
3033 MonoError inner_error;
3034 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3035 if (is_ok (&inner_error)) {
3037 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3039 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3042 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3044 mono_set_pending_exception ((MonoException*)exc);
3047 mono_method_return_message_restore (method, params, out_args, &error);
3048 mono_error_set_pending_exception (&error);
3055 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3057 MonoType *t = mono_type_get_underlying_type (return_type);
3059 if (return_type->byref)
3060 return_type = &mono_defaults.int_class->byval_arg;
3063 case MONO_TYPE_VOID:
3064 g_assert_not_reached ();
3067 case MONO_TYPE_STRING:
3068 case MONO_TYPE_CLASS:
3069 case MONO_TYPE_OBJECT:
3070 case MONO_TYPE_ARRAY:
3071 case MONO_TYPE_SZARRAY:
3075 case MONO_TYPE_BOOLEAN:
3078 case MONO_TYPE_CHAR:
3088 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3089 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3091 case MONO_TYPE_GENERICINST:
3092 if (!mono_type_generic_inst_is_valuetype (t))
3095 case MONO_TYPE_VALUETYPE: {
3096 MonoClass *klass = mono_class_from_mono_type (return_type);
3097 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3098 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3102 case MONO_TYPE_MVAR: {
3103 MonoClass *klass = mono_class_from_mono_type (return_type);
3104 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3108 g_warning ("type 0x%x not handled", return_type->type);
3109 g_assert_not_reached ();
3112 mono_mb_emit_byte (mb, CEE_RET);
3115 #endif /* DISABLE_JIT */
3118 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3120 MonoMethodSignature *sig;
3121 MonoMethodBuilder *mb;
3126 MonoGenericContext *ctx = NULL;
3127 MonoMethod *orig_method = NULL;
3129 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3130 !strcmp (method->name, "EndInvoke"));
3133 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3135 if (method->is_inflated) {
3136 orig_method = method;
3137 ctx = &((MonoMethodInflated*)method)->context;
3138 method = ((MonoMethodInflated*)method)->declaring;
3141 sig = mono_signature_no_pinvoke (method);
3147 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3148 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3152 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3153 (GHashFunc)mono_signature_hash,
3154 (GCompareFunc)mono_metadata_signature_equal);
3155 if ((res = mono_marshal_find_in_cache (cache, sig)))
3159 g_assert (sig->hasthis);
3161 name = mono_signature_to_name (sig, "end_invoke");
3163 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3165 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3169 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3171 mono_mb_emit_ldarg (mb, 0);
3172 mono_mb_emit_ldloc (mb, params_var);
3173 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3175 if (sig->ret->type == MONO_TYPE_VOID) {
3176 mono_mb_emit_byte (mb, CEE_POP);
3177 mono_mb_emit_byte (mb, CEE_RET);
3179 mono_mb_emit_restore_result (mb, sig->ret);
3184 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3185 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3187 res = mono_mb_create_and_cache (cache, sig,
3188 mb, sig, sig->param_count + 16);
3197 MonoMethodSignature *sig;
3199 } SignaturePointerPair;
3202 signature_pointer_pair_hash (gconstpointer data)
3204 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3206 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3210 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3212 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3213 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3217 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3219 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3221 return pair->pointer == user_data;
3225 free_signature_pointer_pair (SignaturePointerPair *pair)
3231 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3233 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3235 MonoMethodBuilder *mb;
3238 gpointer cache_key = NULL;
3239 SignaturePointerPair key;
3240 SignaturePointerPair *new_key;
3241 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3242 int pos0, pos1, pos2;
3244 MonoClass *target_class = NULL;
3245 gboolean closed_over_null = FALSE;
3246 MonoGenericContext *ctx = NULL;
3247 MonoGenericContainer *container = NULL;
3248 MonoMethod *orig_method = NULL;
3250 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3254 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3255 !strcmp (method->name, "Invoke"));
3257 invoke_sig = sig = mono_signature_no_pinvoke (method);
3260 * If the delegate target is null, and the target method is not static, a virtual
3261 * call is made to that method with the first delegate argument as this. This is
3262 * a non-documented .NET feature.
3265 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3266 if (target_method->is_inflated) {
3268 MonoType *target_type;
3270 g_assert (method->signature->hasthis);
3271 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3272 mono_method_get_context (method), &error);
3273 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3274 target_class = mono_class_from_mono_type (target_type);
3276 target_class = target_method->klass;
3279 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3282 if (static_method_with_first_arg_bound) {
3283 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3284 g_assert (!callvirt);
3285 invoke_sig = mono_method_signature (target_method);
3289 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3291 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3292 orig_method = method;
3293 ctx = &((MonoMethodInflated*)method)->context;
3294 method = ((MonoMethodInflated*)method)->declaring;
3296 container = mono_method_get_generic_container (method);
3298 container = method->klass->generic_container;
3299 g_assert (container);
3301 invoke_sig = sig = mono_signature_no_pinvoke (method);
3308 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3309 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3312 cache_key = method->klass;
3313 } else if (static_method_with_first_arg_bound) {
3314 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3315 (GHashFunc)mono_signature_hash,
3316 (GCompareFunc)mono_metadata_signature_equal);
3318 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3320 res = mono_marshal_find_in_cache (cache, invoke_sig);
3323 cache_key = invoke_sig;
3324 } else if (callvirt) {
3325 GHashTable **cache_ptr;
3327 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3329 /* We need to cache the signature+method pair */
3330 mono_marshal_lock ();
3332 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3334 key.sig = invoke_sig;
3335 key.pointer = target_method;
3336 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3337 mono_marshal_unlock ();
3341 // Inflated methods should not be in this cache because it's not stored on the imageset.
3342 g_assert (!method->is_inflated);
3343 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3344 (GHashFunc)mono_signature_hash,
3345 (GCompareFunc)mono_metadata_signature_equal);
3346 res = mono_marshal_find_in_cache (cache, sig);
3352 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3353 static_sig->hasthis = 0;
3354 if (!static_method_with_first_arg_bound)
3355 invoke_sig = static_sig;
3357 if (static_method_with_first_arg_bound)
3358 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3359 else if (closed_over_null)
3360 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3362 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3364 name = mono_signature_to_name (invoke_sig, "invoke");
3366 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3368 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3372 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3374 /* allocate local 0 (object) */
3375 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3376 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3377 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3378 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3379 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3382 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3384 g_assert (sig->hasthis);
3387 * {type: sig->ret} res;
3388 * if (delegates == null) {
3389 * return this.<target> ( args .. );
3391 * int i = 0, len = this.delegates.Length;
3393 * res = this.delegates [i].Invoke ( args .. );
3394 * } while (++i < len);
3399 /* this wrapper can be used in unmanaged-managed transitions */
3400 emit_thread_interrupt_checkpoint (mb);
3402 /* delegates = this.delegates */
3403 mono_mb_emit_ldarg (mb, 0);
3404 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3405 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3406 mono_mb_emit_stloc (mb, local_delegates);
3409 /* if (delegates == null) */
3410 mono_mb_emit_ldloc (mb, local_delegates);
3411 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3413 /* return target.<target_method|method_ptr> ( args .. ); */
3415 /* target = d.target; */
3416 mono_mb_emit_ldarg (mb, 0);
3417 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3418 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3419 mono_mb_emit_stloc (mb, local_target);
3421 /*static methods with bound first arg can have null target and still be bound*/
3422 if (!static_method_with_first_arg_bound) {
3423 /* if target != null */
3424 mono_mb_emit_ldloc (mb, local_target);
3425 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3427 /* then call this->method_ptr nonstatic */
3430 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3432 mono_mb_emit_ldloc (mb, local_target);
3433 for (i = 0; i < sig->param_count; ++i)
3434 mono_mb_emit_ldarg (mb, i + 1);
3435 mono_mb_emit_ldarg (mb, 0);
3436 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3437 mono_mb_emit_byte (mb, CEE_LDIND_I);
3438 mono_mb_emit_ldarg (mb, 0);
3439 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3440 mono_mb_emit_byte (mb, CEE_LDIND_I);
3441 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3442 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3443 mono_mb_emit_byte (mb, CEE_RET);
3446 /* else [target == null] call this->method_ptr static */
3447 mono_mb_patch_branch (mb, pos0);
3451 if (!closed_over_null) {
3452 if (target_class->valuetype) {
3453 mono_mb_emit_ldarg (mb, 1);
3454 for (i = 1; i < sig->param_count; ++i)
3455 mono_mb_emit_ldarg (mb, i + 1);
3456 mono_mb_emit_op (mb, CEE_CALL, target_method);
3458 mono_mb_emit_ldarg (mb, 1);
3459 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3460 for (i = 1; i < sig->param_count; ++i)
3461 mono_mb_emit_ldarg (mb, i + 1);
3462 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3465 mono_mb_emit_byte (mb, CEE_LDNULL);
3466 for (i = 0; i < sig->param_count; ++i)
3467 mono_mb_emit_ldarg (mb, i + 1);
3468 mono_mb_emit_op (mb, CEE_CALL, target_method);
3471 if (static_method_with_first_arg_bound) {
3472 mono_mb_emit_ldloc (mb, local_target);
3473 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3474 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3476 for (i = 0; i < sig->param_count; ++i)
3477 mono_mb_emit_ldarg (mb, i + 1);
3478 mono_mb_emit_ldarg (mb, 0);
3479 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3480 mono_mb_emit_byte (mb, CEE_LDIND_I);
3481 mono_mb_emit_ldarg (mb, 0);
3482 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3483 mono_mb_emit_byte (mb, CEE_LDIND_I);
3484 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3485 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3488 mono_mb_emit_byte (mb, CEE_RET);
3490 /* else [delegates != null] */
3491 mono_mb_patch_branch (mb, pos2);
3493 /* len = delegates.Length; */
3494 mono_mb_emit_ldloc (mb, local_delegates);
3495 mono_mb_emit_byte (mb, CEE_LDLEN);
3496 mono_mb_emit_byte (mb, CEE_CONV_I4);
3497 mono_mb_emit_stloc (mb, local_len);
3500 mono_mb_emit_icon (mb, 0);
3501 mono_mb_emit_stloc (mb, local_i);
3503 pos1 = mono_mb_get_label (mb);
3505 /* d = delegates [i]; */
3506 mono_mb_emit_ldloc (mb, local_delegates);
3507 mono_mb_emit_ldloc (mb, local_i);
3508 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3509 mono_mb_emit_stloc (mb, local_d);
3511 /* res = d.Invoke ( args .. ); */
3512 mono_mb_emit_ldloc (mb, local_d);
3513 for (i = 0; i < sig->param_count; i++)
3514 mono_mb_emit_ldarg (mb, i + 1);
3516 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3519 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3520 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3523 mono_mb_emit_stloc (mb, local_res);
3526 mono_mb_emit_add_to_local (mb, local_i, 1);
3529 mono_mb_emit_ldloc (mb, local_i);
3530 mono_mb_emit_ldloc (mb, local_len);
3531 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3535 mono_mb_emit_ldloc (mb, local_res);
3536 mono_mb_emit_byte (mb, CEE_RET);
3538 mb->skip_visibility = 1;
3539 #endif /* DISABLE_JIT */
3541 info = mono_wrapper_info_create (mb, subtype);
3546 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3547 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3548 } else if (callvirt) {
3549 new_key = g_new0 (SignaturePointerPair, 1);
3552 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3556 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3560 /* mono_method_print_code (res); */
3566 * the returned method invokes all methods in a multicast delegate.
3569 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3571 gboolean callvirt = FALSE;
3572 gboolean static_method_with_first_arg_bound = FALSE;
3573 MonoMethod *target_method = NULL;
3574 MonoMethodSignature *sig;
3576 sig = mono_signature_no_pinvoke (method);
3578 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3580 target_method = del->method;
3583 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3584 static_method_with_first_arg_bound = TRUE;
3585 target_method = del->method;
3588 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3592 MonoMethodSignature *ctor_sig;
3593 MonoMethodSignature *sig;
3596 /* protected by the marshal lock, contains CtorSigPair pointers */
3597 static GSList *strsig_list = NULL;
3599 static MonoMethodSignature *
3600 lookup_string_ctor_signature (MonoMethodSignature *sig)
3602 MonoMethodSignature *callsig;
3606 mono_marshal_lock ();
3608 for (item = strsig_list; item; item = item->next) {
3609 cs = (CtorSigPair *)item->data;
3610 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3611 * because it is lock-free.
3613 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3618 mono_marshal_unlock ();
3622 static MonoMethodSignature *
3623 add_string_ctor_signature (MonoMethod *method)
3625 MonoMethodSignature *callsig;
3628 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3629 callsig->ret = &mono_defaults.string_class->byval_arg;
3630 cs = g_new (CtorSigPair, 1);
3632 cs->ctor_sig = mono_method_signature (method);
3634 mono_marshal_lock ();
3635 strsig_list = g_slist_prepend (strsig_list, cs);
3636 mono_marshal_unlock ();
3641 * mono_marshal_get_string_ctor_signature:
3643 * Return the modified signature used by string ctors (they return the newly created
3646 MonoMethodSignature*
3647 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3649 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3651 sig = add_string_ctor_signature (method);
3657 get_runtime_invoke_type (MonoType *t, gboolean ret)
3660 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3662 /* Can't share this with 'I' as that needs another indirection */
3663 return &mono_defaults.int_class->this_arg;
3666 if (MONO_TYPE_IS_REFERENCE (t))
3667 return &mono_defaults.object_class->byval_arg;
3670 /* The result needs to be boxed */
3675 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3678 return &mono_defaults.sbyte_class->byval_arg;
3680 return &mono_defaults.int16_class->byval_arg;
3682 return &mono_defaults.int32_class->byval_arg;
3685 return &mono_defaults.int64_class->byval_arg;
3686 case MONO_TYPE_BOOLEAN:
3687 return &mono_defaults.byte_class->byval_arg;
3688 case MONO_TYPE_CHAR:
3689 return &mono_defaults.uint16_class->byval_arg;
3691 return &mono_defaults.int_class->byval_arg;
3692 case MONO_TYPE_VALUETYPE:
3693 if (t->data.klass->enumtype) {
3694 t = mono_class_enum_basetype (t->data.klass);
3704 * mono_marshal_get_runtime_invoke_sig:
3706 * Return a common signature used for sharing runtime invoke wrappers.
3708 static MonoMethodSignature*
3709 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3711 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3714 res->generic_param_count = 0;
3715 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3716 for (i = 0; i < res->param_count; ++i)
3717 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3723 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3725 /* Can't share wrappers which return a vtype since it needs to be boxed */
3726 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))
3729 return mono_metadata_signature_equal (sig1, sig2);
3737 * Emit the call to the wrapper method from a runtime invoke wrapper.
3740 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3741 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3743 gboolean virtual_, gboolean need_direct_wrapper)
3745 static MonoString *string_dummy = NULL;
3747 int *tmp_nullable_locals;
3748 gboolean void_ret = FALSE;
3749 gboolean string_ctor = method && method->string_ctor;
3751 /* to make it work with our special string constructors */
3752 if (!string_dummy) {
3753 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3754 string_dummy = mono_string_new_wrapper ("dummy");
3758 g_assert (sig->hasthis);
3759 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3764 if (mono_gc_is_moving ()) {
3765 mono_mb_emit_ptr (mb, &string_dummy);
3766 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3768 mono_mb_emit_ptr (mb, string_dummy);
3771 mono_mb_emit_ldarg (mb, 0);
3775 tmp_nullable_locals = g_new0 (int, sig->param_count);
3777 for (i = 0; i < sig->param_count; i++) {
3778 MonoType *t = sig->params [i];
3781 mono_mb_emit_ldarg (mb, 1);
3783 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3784 mono_mb_emit_byte (mb, CEE_ADD);
3788 mono_mb_emit_byte (mb, CEE_LDIND_I);
3789 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3790 * So to make this work we unbox it to a local variablee and push a reference to that.
3792 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3793 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3795 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3796 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3797 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3802 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3803 type = sig->params [i]->type;
3807 case MONO_TYPE_BOOLEAN:
3811 case MONO_TYPE_CHAR:
3820 mono_mb_emit_byte (mb, CEE_LDIND_I);
3821 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3823 case MONO_TYPE_STRING:
3824 case MONO_TYPE_CLASS:
3825 case MONO_TYPE_ARRAY:
3827 case MONO_TYPE_SZARRAY:
3828 case MONO_TYPE_OBJECT:
3829 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3831 case MONO_TYPE_GENERICINST:
3832 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3833 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3838 case MONO_TYPE_VALUETYPE:
3839 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3840 type = mono_class_enum_basetype (t->data.klass)->type;
3843 mono_mb_emit_byte (mb, CEE_LDIND_I);
3844 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3845 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3846 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3847 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3849 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3853 g_assert_not_reached ();
3858 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3859 } else if (need_direct_wrapper) {
3860 mono_mb_emit_op (mb, CEE_CALL, method);
3862 mono_mb_emit_ldarg (mb, 3);
3863 mono_mb_emit_calli (mb, callsig);
3866 if (sig->ret->byref) {
3868 g_assert_not_reached ();
3871 switch (sig->ret->type) {
3872 case MONO_TYPE_VOID:
3876 case MONO_TYPE_BOOLEAN:
3877 case MONO_TYPE_CHAR:
3890 case MONO_TYPE_VALUETYPE:
3891 case MONO_TYPE_TYPEDBYREF:
3892 case MONO_TYPE_GENERICINST:
3893 /* box value types */
3894 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3896 case MONO_TYPE_STRING:
3897 case MONO_TYPE_CLASS:
3898 case MONO_TYPE_ARRAY:
3899 case MONO_TYPE_SZARRAY:
3900 case MONO_TYPE_OBJECT:
3904 /* The result is an IntPtr */
3905 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3908 g_assert_not_reached ();
3912 mono_mb_emit_stloc (mb, loc_res);
3914 /* Convert back nullable-byref arguments */
3915 for (i = 0; i < sig->param_count; i++) {
3916 MonoType *t = sig->params [i];
3919 * Box the result and put it back into the array, the caller will have
3920 * to obtain it from there.
3922 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3923 mono_mb_emit_ldarg (mb, 1);
3924 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3925 mono_mb_emit_byte (mb, CEE_ADD);
3927 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3928 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3930 mono_mb_emit_byte (mb, CEE_STIND_REF);
3934 g_free (tmp_nullable_locals);
3938 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3939 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3940 gboolean virtual_, gboolean need_direct_wrapper)
3943 MonoExceptionClause *clause;
3944 int loc_res, loc_exc;
3946 /* The wrapper looks like this:
3952 * } catch (Exception e) {
3960 /* allocate local 0 (object) tmp */
3961 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3962 /* allocate local 1 (object) exc */
3963 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3965 /* *exc is assumed to be initialized to NULL by the caller */
3967 mono_mb_emit_byte (mb, CEE_LDARG_2);
3968 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3973 labels [1] = mono_mb_get_label (mb);
3974 emit_thread_force_interrupt_checkpoint (mb);
3975 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3977 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3979 /* Add a try clause around the call */
3980 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3981 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3982 clause->data.catch_class = mono_defaults.exception_class;
3983 clause->try_offset = labels [1];
3984 clause->try_len = mono_mb_get_label (mb) - labels [1];
3986 clause->handler_offset = mono_mb_get_label (mb);
3989 mono_mb_emit_stloc (mb, loc_exc);
3990 mono_mb_emit_byte (mb, CEE_LDARG_2);
3991 mono_mb_emit_ldloc (mb, loc_exc);
3992 mono_mb_emit_byte (mb, CEE_STIND_REF);
3994 mono_mb_emit_branch (mb, CEE_LEAVE);
3996 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3998 mono_mb_set_clauses (mb, 1, clause);
4000 mono_mb_patch_branch (mb, labels [2]);
4001 mono_mb_emit_ldloc (mb, loc_res);
4002 mono_mb_emit_byte (mb, CEE_RET);
4007 mono_mb_patch_branch (mb, labels [0]);
4008 emit_thread_force_interrupt_checkpoint (mb);
4009 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4011 mono_mb_emit_ldloc (mb, 0);
4012 mono_mb_emit_byte (mb, CEE_RET);
4017 * generates IL code for the runtime invoke function
4018 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4020 * we also catch exceptions if exc != null
4021 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4022 * it means that the compiled code for METHOD does not have to be looked up
4023 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4024 * its METHOD argument.
4027 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4029 MonoMethodSignature *sig, *csig, *callsig;
4030 MonoMethodBuilder *mb;
4031 GHashTable *cache = NULL;
4032 MonoClass *target_klass;
4033 MonoMethod *res = NULL;
4034 static MonoMethodSignature *cctor_signature = NULL;
4035 static MonoMethodSignature *finalize_signature = NULL;
4037 const char *param_names [16];
4038 gboolean need_direct_wrapper = FALSE;
4043 if (!cctor_signature) {
4044 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4045 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4047 if (!finalize_signature) {
4048 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4049 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4050 finalize_signature->hasthis = 1;
4054 need_direct_wrapper = TRUE;
4057 * Use a separate cache indexed by methods to speed things up and to avoid the
4058 * boundless mempool growth caused by the signature_dup stuff below.
4061 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4063 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4065 res = mono_marshal_find_in_cache (cache, method);
4069 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4070 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4072 * Array Get/Set/Address methods. The JIT implements them using inline code
4073 * so we need to create an invoke wrapper which calls the method directly.
4075 need_direct_wrapper = TRUE;
4078 if (method->string_ctor) {
4079 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4081 callsig = add_string_ctor_signature (method);
4082 /* Can't share this as we push a string as this */
4083 need_direct_wrapper = TRUE;
4085 if (method_is_dynamic (method))
4086 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4088 callsig = mono_method_signature (method);
4091 sig = mono_method_signature (method);
4093 target_klass = get_wrapper_target_class (method->klass->image);
4095 /* Try to share wrappers for non-corlib methods with simple signatures */
4096 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4097 callsig = cctor_signature;
4098 target_klass = mono_defaults.object_class;
4099 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4100 callsig = finalize_signature;
4101 target_klass = mono_defaults.object_class;
4104 if (need_direct_wrapper) {
4105 /* Already searched at the start */
4107 MonoMethodSignature *tmp_sig;
4109 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4110 GHashTable **cache_table = NULL;
4112 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4113 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4115 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4117 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4118 (GCompareFunc)runtime_invoke_signature_equal);
4120 /* from mono_marshal_find_in_cache */
4121 mono_marshal_lock ();
4122 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4123 mono_marshal_unlock ();
4130 /* Make a copy of the signature from the image mempool */
4132 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4136 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4138 csig->ret = &mono_defaults.object_class->byval_arg;
4139 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4140 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4142 csig->params [0] = &mono_defaults.object_class->byval_arg;
4143 csig->params [1] = &mono_defaults.int_class->byval_arg;
4144 csig->params [2] = &mono_defaults.int_class->byval_arg;
4145 csig->params [3] = &mono_defaults.int_class->byval_arg;
4148 /* This is called from runtime code so it has to be cdecl */
4149 csig->call_convention = MONO_CALL_C;
4152 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4153 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4157 param_names [0] = "this";
4158 param_names [1] = "params";
4159 param_names [2] = "exc";
4160 param_names [3] = "method";
4161 mono_mb_set_param_names (mb, param_names);
4163 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4166 if (need_direct_wrapper) {
4168 mb->skip_visibility = 1;
4170 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4171 info->d.runtime_invoke.method = method;
4172 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4174 /* taken from mono_mb_create_and_cache */
4175 mono_marshal_lock ();
4176 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4177 mono_marshal_unlock ();
4179 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4180 info->d.runtime_invoke.sig = callsig;
4182 /* Somebody may have created it before us */
4185 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4187 mono_marshal_lock ();
4188 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4190 GHashTable *direct_cache;
4192 g_hash_table_insert (cache, callsig, res);
4193 /* Can't insert it into wrapper_hash since the key is a signature */
4194 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4196 g_hash_table_insert (direct_cache, method, res);
4198 mono_free_method (newm);
4200 mono_marshal_unlock ();
4203 /* end mono_mb_create_and_cache */
4212 * mono_marshal_get_runtime_invoke_dynamic:
4214 * Return a method which can be used to invoke managed methods from native code
4216 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4217 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4218 * ARGS should point to an architecture specific structure containing
4219 * the arguments and space for the return value.
4220 * The other arguments are the same as for runtime_invoke (), except that
4221 * ARGS should contain the this argument too.
4222 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4223 * is only one copy of it, which is useful in full-aot.
4226 mono_marshal_get_runtime_invoke_dynamic (void)
4228 static MonoMethod *method;
4229 MonoMethodSignature *csig;
4230 MonoExceptionClause *clause;
4231 MonoMethodBuilder *mb;
4239 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4241 csig->ret = &mono_defaults.void_class->byval_arg;
4242 csig->params [0] = &mono_defaults.int_class->byval_arg;
4243 csig->params [1] = &mono_defaults.int_class->byval_arg;
4244 csig->params [2] = &mono_defaults.int_class->byval_arg;
4245 csig->params [3] = &mono_defaults.int_class->byval_arg;
4247 name = g_strdup ("runtime_invoke_dynamic");
4248 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4252 /* allocate local 0 (object) tmp */
4253 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4254 /* allocate local 1 (object) exc */
4255 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4257 /* cond set *exc to null */
4258 mono_mb_emit_byte (mb, CEE_LDARG_1);
4259 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4260 mono_mb_emit_byte (mb, 3);
4261 mono_mb_emit_byte (mb, CEE_LDARG_1);
4262 mono_mb_emit_byte (mb, CEE_LDNULL);
4263 mono_mb_emit_byte (mb, CEE_STIND_REF);
4265 emit_thread_force_interrupt_checkpoint (mb);
4267 mono_mb_emit_byte (mb, CEE_LDARG_0);
4268 mono_mb_emit_byte (mb, CEE_LDARG_2);
4269 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4270 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4272 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4274 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4275 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4276 clause->try_len = mono_mb_get_label (mb);
4279 clause->data.filter_offset = mono_mb_get_label (mb);
4281 mono_mb_emit_byte (mb, CEE_POP);
4282 mono_mb_emit_byte (mb, CEE_LDARG_1);
4283 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4284 mono_mb_emit_byte (mb, CEE_PREFIX1);
4285 mono_mb_emit_byte (mb, CEE_CGT_UN);
4286 mono_mb_emit_byte (mb, CEE_PREFIX1);
4287 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4289 clause->handler_offset = mono_mb_get_label (mb);
4292 /* store exception */
4293 mono_mb_emit_stloc (mb, 1);
4295 mono_mb_emit_byte (mb, CEE_LDARG_1);
4296 mono_mb_emit_ldloc (mb, 1);
4297 mono_mb_emit_byte (mb, CEE_STIND_REF);
4299 mono_mb_emit_byte (mb, CEE_LDNULL);
4300 mono_mb_emit_stloc (mb, 0);
4302 /* Check for the abort exception */
4303 mono_mb_emit_ldloc (mb, 1);
4304 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4305 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4307 /* Delay the abort exception */
4308 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4310 mono_mb_patch_short_branch (mb, posna);
4311 mono_mb_emit_branch (mb, CEE_LEAVE);
4313 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4315 mono_mb_set_clauses (mb, 1, clause);
4318 mono_mb_patch_branch (mb, pos);
4319 //mono_mb_emit_ldloc (mb, 0);
4320 mono_mb_emit_byte (mb, CEE_RET);
4321 #endif /* DISABLE_JIT */
4323 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4325 mono_marshal_lock ();
4326 /* double-checked locking */
4328 method = mono_mb_create (mb, csig, 16, info);
4330 mono_marshal_unlock ();
4338 * mono_marshal_get_runtime_invoke_for_sig:
4340 * Return a runtime invoke wrapper for a given signature.
4343 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4345 MonoMethodSignature *csig, *callsig;
4346 MonoMethodBuilder *mb;
4348 GHashTable *cache = NULL;
4349 GHashTable **cache_table = NULL;
4350 MonoMethod *res = NULL;
4352 const char *param_names [16];
4355 /* A simplified version of mono_marshal_get_runtime_invoke */
4357 image = mono_defaults.corlib;
4359 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4361 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4363 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4364 (GCompareFunc)runtime_invoke_signature_equal);
4366 /* from mono_marshal_find_in_cache */
4367 mono_marshal_lock ();
4368 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4369 mono_marshal_unlock ();
4376 /* Make a copy of the signature from the image mempool */
4377 callsig = mono_metadata_signature_dup_full (image, callsig);
4379 csig = mono_metadata_signature_alloc (image, 4);
4380 csig->ret = &mono_defaults.object_class->byval_arg;
4381 csig->params [0] = &mono_defaults.object_class->byval_arg;
4382 csig->params [1] = &mono_defaults.int_class->byval_arg;
4383 csig->params [2] = &mono_defaults.int_class->byval_arg;
4384 csig->params [3] = &mono_defaults.int_class->byval_arg;
4387 /* This is called from runtime code so it has to be cdecl */
4388 csig->call_convention = MONO_CALL_C;
4391 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4392 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4396 param_names [0] = "this";
4397 param_names [1] = "params";
4398 param_names [2] = "exc";
4399 param_names [3] = "method";
4400 mono_mb_set_param_names (mb, param_names);
4402 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4405 /* taken from mono_mb_create_and_cache */
4406 mono_marshal_lock ();
4407 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4408 mono_marshal_unlock ();
4410 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4411 info->d.runtime_invoke.sig = callsig;
4413 /* Somebody may have created it before us */
4416 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4418 mono_marshal_lock ();
4419 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4422 g_hash_table_insert (cache, callsig, res);
4424 mono_free_method (newm);
4426 mono_marshal_unlock ();
4429 /* end mono_mb_create_and_cache */
4438 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4440 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4441 klass->name_space, klass->name);
4443 mono_mb_emit_exception_marshal_directive (mb, msg);
4448 * generates IL code for the icall wrapper (the generated method
4449 * calls the unmanaged code in func)
4452 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4454 MonoMethodSignature *csig, *csig2;
4455 MonoMethodBuilder *mb;
4460 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4461 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4464 g_assert (sig->pinvoke);
4466 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4468 mb->method->save_lmf = 1;
4470 /* Add an explicit this argument */
4472 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4474 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4478 mono_mb_emit_byte (mb, CEE_LDARG_0);
4480 for (i = 0; i < sig->param_count; i++)
4481 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4483 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4484 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4485 mono_mb_emit_calli (mb, csig2);
4486 if (check_exceptions)
4487 emit_thread_interrupt_checkpoint (mb);
4488 mono_mb_emit_byte (mb, CEE_RET);
4491 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4493 if (csig->call_convention == MONO_CALL_VARARG)
4494 csig->call_convention = 0;
4496 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4497 info->d.icall.func = (gpointer)func;
4498 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4505 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4506 MonoMarshalSpec *spec,
4507 int conv_arg, MonoType **conv_arg_type,
4508 MarshalAction action)
4511 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4512 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4518 static MonoClass *ICustomMarshaler = NULL;
4519 static MonoMethod *cleanup_native, *cleanup_managed;
4520 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4521 MonoMethod *get_instance = NULL;
4522 MonoMethodBuilder *mb = m->mb;
4523 char *exception_msg = NULL;
4527 if (!ICustomMarshaler) {
4528 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4530 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4531 goto handle_exception;
4534 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4535 g_assert (cleanup_native);
4536 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4537 g_assert (cleanup_managed);
4538 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4539 g_assert (marshal_managed_to_native);
4540 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4541 g_assert (marshal_native_to_managed);
4543 mono_memory_barrier ();
4544 ICustomMarshaler = klass;
4547 if (spec->data.custom_data.image)
4548 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4550 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4551 g_assert (mtype != NULL);
4552 mono_error_assert_ok (&error);
4553 mklass = mono_class_from_mono_type (mtype);
4554 g_assert (mklass != NULL);
4556 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4557 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4559 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4561 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4562 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4563 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4564 (get_sig->params [0]->type != MONO_TYPE_STRING))
4565 get_instance = NULL;
4569 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);
4572 /* Throw exception and emit compensation code if neccesary */
4573 if (exception_msg) {
4575 case MARSHAL_ACTION_CONV_IN:
4576 case MARSHAL_ACTION_CONV_RESULT:
4577 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4578 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4579 mono_mb_emit_byte (mb, CEE_POP);
4581 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4582 g_free (exception_msg);
4585 case MARSHAL_ACTION_PUSH:
4586 mono_mb_emit_byte (mb, CEE_LDNULL);
4594 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4595 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4598 case MARSHAL_ACTION_CONV_IN:
4600 case MONO_TYPE_CLASS:
4601 case MONO_TYPE_OBJECT:
4602 case MONO_TYPE_STRING:
4603 case MONO_TYPE_ARRAY:
4604 case MONO_TYPE_SZARRAY:
4605 case MONO_TYPE_VALUETYPE:
4609 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4610 g_assert_not_reached ();
4614 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4616 mono_mb_emit_byte (mb, CEE_LDNULL);
4617 mono_mb_emit_stloc (mb, conv_arg);
4619 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4622 /* Minic MS.NET behavior */
4623 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4626 /* Check for null */
4627 mono_mb_emit_ldarg (mb, argnum);
4629 mono_mb_emit_byte (mb, CEE_LDIND_I);
4630 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4632 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4634 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4636 mono_mb_emit_ldarg (mb, argnum);
4638 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4640 if (t->type == MONO_TYPE_VALUETYPE) {
4642 * Since we can't determine the type of the argument, we
4643 * will assume the unmanaged function takes a pointer.
4645 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4647 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4650 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4651 mono_mb_emit_stloc (mb, conv_arg);
4653 mono_mb_patch_branch (mb, pos2);
4656 case MARSHAL_ACTION_CONV_OUT:
4657 /* Check for null */
4658 mono_mb_emit_ldloc (mb, conv_arg);
4659 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4662 mono_mb_emit_ldarg (mb, argnum);
4664 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4666 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4668 mono_mb_emit_ldloc (mb, conv_arg);
4669 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4670 mono_mb_emit_byte (mb, CEE_STIND_REF);
4671 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4672 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4674 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4676 mono_mb_emit_ldloc (mb, conv_arg);
4677 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4679 /* We have nowhere to store the result */
4680 mono_mb_emit_byte (mb, CEE_POP);
4683 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4685 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4687 mono_mb_emit_ldloc (mb, conv_arg);
4689 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4691 mono_mb_patch_branch (mb, pos2);
4694 case MARSHAL_ACTION_PUSH:
4696 mono_mb_emit_ldloc_addr (mb, conv_arg);
4698 mono_mb_emit_ldloc (mb, conv_arg);
4701 case MARSHAL_ACTION_CONV_RESULT:
4702 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4704 mono_mb_emit_stloc (mb, 3);
4706 mono_mb_emit_ldloc (mb, 3);
4707 mono_mb_emit_stloc (mb, loc1);
4709 /* Check for null */
4710 mono_mb_emit_ldloc (mb, 3);
4711 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4713 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4715 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4716 mono_mb_emit_byte (mb, CEE_DUP);
4718 mono_mb_emit_ldloc (mb, 3);
4719 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4720 mono_mb_emit_stloc (mb, 3);
4722 mono_mb_emit_ldloc (mb, loc1);
4723 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4725 mono_mb_patch_branch (mb, pos2);
4728 case MARSHAL_ACTION_MANAGED_CONV_IN:
4729 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4731 mono_mb_emit_byte (mb, CEE_LDNULL);
4732 mono_mb_emit_stloc (mb, conv_arg);
4734 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4737 /* Check for null */
4738 mono_mb_emit_ldarg (mb, argnum);
4740 mono_mb_emit_byte (mb, CEE_LDIND_I);
4741 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4743 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4744 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4746 mono_mb_emit_ldarg (mb, argnum);
4748 mono_mb_emit_byte (mb, CEE_LDIND_I);
4750 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4751 mono_mb_emit_stloc (mb, conv_arg);
4753 mono_mb_patch_branch (mb, pos2);
4756 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4757 g_assert (!t->byref);
4759 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4761 mono_mb_emit_stloc (mb, 3);
4763 mono_mb_emit_ldloc (mb, 3);
4764 mono_mb_emit_stloc (mb, loc1);
4766 /* Check for null */
4767 mono_mb_emit_ldloc (mb, 3);
4768 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4770 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4771 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4772 mono_mb_emit_byte (mb, CEE_DUP);
4774 mono_mb_emit_ldloc (mb, 3);
4775 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4776 mono_mb_emit_stloc (mb, 3);
4778 mono_mb_emit_ldloc (mb, loc1);
4779 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4781 mono_mb_patch_branch (mb, pos2);
4784 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4786 /* Check for null */
4787 mono_mb_emit_ldloc (mb, conv_arg);
4788 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4791 mono_mb_emit_ldarg (mb, argnum);
4793 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4795 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4797 mono_mb_emit_ldloc (mb, conv_arg);
4798 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4799 mono_mb_emit_byte (mb, CEE_STIND_I);
4802 /* Call CleanUpManagedData */
4803 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4805 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4807 mono_mb_emit_ldloc (mb, conv_arg);
4808 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4810 mono_mb_patch_branch (mb, pos2);
4814 g_assert_not_reached ();
4822 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4823 MonoMarshalSpec *spec,
4824 int conv_arg, MonoType **conv_arg_type,
4825 MarshalAction action)
4828 MonoMethodBuilder *mb = m->mb;
4831 case MARSHAL_ACTION_CONV_IN: {
4832 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4834 g_assert (t->type == MONO_TYPE_OBJECT);
4835 g_assert (!t->byref);
4837 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4838 mono_mb_emit_ldarg (mb, argnum);
4839 mono_mb_emit_icon (mb, encoding);
4840 mono_mb_emit_icon (mb, t->attrs);
4841 mono_mb_emit_icall (mb, mono_marshal_asany);
4842 mono_mb_emit_stloc (mb, conv_arg);
4846 case MARSHAL_ACTION_PUSH:
4847 mono_mb_emit_ldloc (mb, conv_arg);
4850 case MARSHAL_ACTION_CONV_OUT: {
4851 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4853 mono_mb_emit_ldarg (mb, argnum);
4854 mono_mb_emit_ldloc (mb, conv_arg);
4855 mono_mb_emit_icon (mb, encoding);
4856 mono_mb_emit_icon (mb, t->attrs);
4857 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4862 g_assert_not_reached ();
4869 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4870 MonoMarshalSpec *spec,
4871 int conv_arg, MonoType **conv_arg_type,
4872 MarshalAction action)
4875 MonoMethodBuilder *mb = m->mb;
4876 MonoClass *klass, *date_time_class;
4879 klass = mono_class_from_mono_type (t);
4881 date_time_class = mono_class_get_date_time_class ();
4884 case MARSHAL_ACTION_CONV_IN:
4885 if (klass == date_time_class) {
4886 /* Convert it to an OLE DATE type */
4887 static MonoMethod *to_oadate;
4890 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4891 g_assert (to_oadate);
4893 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4896 mono_mb_emit_ldarg (mb, argnum);
4897 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4900 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4902 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4904 mono_mb_emit_ldarg_addr (mb, argnum);
4905 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4906 mono_mb_emit_stloc (mb, conv_arg);
4910 mono_mb_patch_branch (mb, pos);
4914 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4915 klass->blittable || klass->enumtype)
4918 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4920 /* store the address of the source into local variable 0 */
4922 mono_mb_emit_ldarg (mb, argnum);
4924 mono_mb_emit_ldarg_addr (mb, argnum);
4926 mono_mb_emit_stloc (mb, 0);
4928 /* allocate space for the native struct and
4929 * store the address into local variable 1 (dest) */
4930 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4931 mono_mb_emit_byte (mb, CEE_PREFIX1);
4932 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4933 mono_mb_emit_stloc (mb, conv_arg);
4936 mono_mb_emit_ldloc (mb, 0);
4937 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4940 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4942 mono_mb_emit_ldloc (mb, conv_arg);
4943 mono_mb_emit_stloc (mb, 1);
4945 /* emit valuetype conversion code */
4946 emit_struct_conv (mb, klass, FALSE);
4950 mono_mb_patch_branch (mb, pos);
4953 case MARSHAL_ACTION_PUSH:
4954 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4956 g_assert (!t->byref);
4958 /* Have to change the signature since the vtype is passed byref */
4959 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4961 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4962 klass->blittable || klass->enumtype)
4963 mono_mb_emit_ldarg_addr (mb, argnum);
4965 mono_mb_emit_ldloc (mb, conv_arg);
4969 if (klass == date_time_class) {
4971 mono_mb_emit_ldloc_addr (mb, conv_arg);
4973 mono_mb_emit_ldloc (mb, conv_arg);
4977 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4978 klass->blittable || klass->enumtype) {
4979 mono_mb_emit_ldarg (mb, argnum);
4982 mono_mb_emit_ldloc (mb, conv_arg);
4984 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4985 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4989 case MARSHAL_ACTION_CONV_OUT:
4990 if (klass == date_time_class) {
4991 /* Convert from an OLE DATE type */
4992 static MonoMethod *from_oadate;
4997 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4999 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5000 g_assert (from_oadate);
5002 mono_mb_emit_ldarg (mb, argnum);
5003 mono_mb_emit_ldloc (mb, conv_arg);
5004 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5005 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5010 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5011 klass->blittable || klass->enumtype)
5015 /* dst = argument */
5016 mono_mb_emit_ldarg (mb, argnum);
5017 mono_mb_emit_stloc (mb, 1);
5019 mono_mb_emit_ldloc (mb, 1);
5020 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5022 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5023 /* src = tmp_locals [i] */
5024 mono_mb_emit_ldloc (mb, conv_arg);
5025 mono_mb_emit_stloc (mb, 0);
5027 /* emit valuetype conversion code */
5028 emit_struct_conv (mb, klass, TRUE);
5032 emit_struct_free (mb, klass, conv_arg);
5035 mono_mb_patch_branch (mb, pos);
5038 case MARSHAL_ACTION_CONV_RESULT:
5039 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5041 mono_mb_emit_stloc (mb, 3);
5045 /* load pointer to returned value type */
5046 g_assert (m->vtaddr_var);
5047 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5048 /* store the address of the source into local variable 0 */
5049 mono_mb_emit_stloc (mb, 0);
5051 mono_mb_emit_ldloc_addr (mb, 3);
5052 mono_mb_emit_stloc (mb, 1);
5054 /* emit valuetype conversion code */
5055 emit_struct_conv (mb, klass, TRUE);
5058 case MARSHAL_ACTION_MANAGED_CONV_IN:
5059 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5060 klass->blittable || klass->enumtype) {
5065 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5067 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5071 mono_mb_emit_ldarg (mb, argnum);
5073 mono_mb_emit_ldarg_addr (mb, argnum);
5074 mono_mb_emit_stloc (mb, 0);
5077 mono_mb_emit_ldloc (mb, 0);
5078 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5081 mono_mb_emit_ldloc_addr (mb, conv_arg);
5082 mono_mb_emit_stloc (mb, 1);
5084 /* emit valuetype conversion code */
5085 emit_struct_conv (mb, klass, TRUE);
5088 mono_mb_patch_branch (mb, pos);
5091 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5092 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5093 klass->blittable || klass->enumtype) {
5097 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5100 /* Check for null */
5101 mono_mb_emit_ldarg (mb, argnum);
5102 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5105 mono_mb_emit_ldloc_addr (mb, conv_arg);
5106 mono_mb_emit_stloc (mb, 0);
5109 mono_mb_emit_ldarg (mb, argnum);
5110 mono_mb_emit_stloc (mb, 1);
5112 /* emit valuetype conversion code */
5113 emit_struct_conv (mb, klass, FALSE);
5115 mono_mb_patch_branch (mb, pos2);
5118 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5119 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5120 klass->blittable || klass->enumtype) {
5121 mono_mb_emit_stloc (mb, 3);
5126 /* load pointer to returned value type */
5127 g_assert (m->vtaddr_var);
5128 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5130 /* store the address of the source into local variable 0 */
5131 mono_mb_emit_stloc (mb, 0);
5132 /* allocate space for the native struct and
5133 * store the address into dst_ptr */
5134 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5135 m->retobj_class = klass;
5136 g_assert (m->retobj_var);
5137 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5138 mono_mb_emit_byte (mb, CEE_CONV_I);
5139 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5140 mono_mb_emit_stloc (mb, 1);
5141 mono_mb_emit_ldloc (mb, 1);
5142 mono_mb_emit_stloc (mb, m->retobj_var);
5144 /* emit valuetype conversion code */
5145 emit_struct_conv (mb, klass, FALSE);
5149 g_assert_not_reached ();
5156 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5157 MonoMarshalSpec *spec,
5158 int conv_arg, MonoType **conv_arg_type,
5159 MarshalAction action)
5163 case MARSHAL_ACTION_CONV_IN:
5164 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5166 case MARSHAL_ACTION_MANAGED_CONV_IN:
5167 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5171 MonoMethodBuilder *mb = m->mb;
5172 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5173 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5177 case MARSHAL_ACTION_CONV_IN:
5178 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5179 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5182 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5185 mono_mb_emit_ldarg (mb, argnum);
5186 mono_mb_emit_byte (mb, CEE_LDIND_I);
5188 mono_mb_emit_ldarg (mb, argnum);
5191 if (conv == MONO_MARSHAL_CONV_INVALID) {
5192 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5193 mono_mb_emit_exception_marshal_directive (mb, msg);
5195 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5197 mono_mb_emit_stloc (mb, conv_arg);
5201 case MARSHAL_ACTION_CONV_OUT:
5202 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5203 if (conv == MONO_MARSHAL_CONV_INVALID) {
5204 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5205 mono_mb_emit_exception_marshal_directive (mb, msg);
5209 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5210 static MonoMethod *m;
5213 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5218 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5219 mono_mb_emit_exception_marshal_directive (mb, msg);
5224 * Have to allocate a new string with the same length as the original, and
5225 * copy the contents of the buffer pointed to by CONV_ARG into it.
5227 g_assert (t->byref);
5228 mono_mb_emit_ldarg (mb, argnum);
5229 mono_mb_emit_ldloc (mb, conv_arg);
5230 mono_mb_emit_ldarg (mb, argnum);
5231 mono_mb_emit_byte (mb, CEE_LDIND_I);
5232 mono_mb_emit_managed_call (mb, m, NULL);
5233 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5234 mono_mb_emit_byte (mb, CEE_STIND_REF);
5235 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5237 mono_mb_emit_ldarg (mb, argnum);
5238 mono_mb_emit_ldloc (mb, conv_arg);
5239 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5240 mono_mb_emit_byte (mb, stind_op);
5245 mono_mb_emit_ldloc (mb, conv_arg);
5246 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5247 mono_mb_emit_icall (mb, mono_free_bstr);
5249 mono_mb_emit_icall (mb, mono_marshal_free);
5253 case MARSHAL_ACTION_PUSH:
5254 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5255 mono_mb_emit_ldloc_addr (mb, conv_arg);
5257 mono_mb_emit_ldloc (mb, conv_arg);
5260 case MARSHAL_ACTION_CONV_RESULT:
5261 mono_mb_emit_stloc (mb, 0);
5263 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5264 if (conv == MONO_MARSHAL_CONV_INVALID) {
5265 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5266 mono_mb_emit_exception_marshal_directive (mb, msg);
5270 mono_mb_emit_ldloc (mb, 0);
5271 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5272 mono_mb_emit_stloc (mb, 3);
5274 /* free the string */
5275 mono_mb_emit_ldloc (mb, 0);
5276 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5277 mono_mb_emit_icall (mb, mono_free_bstr);
5279 mono_mb_emit_icall (mb, mono_marshal_free);
5282 case MARSHAL_ACTION_MANAGED_CONV_IN:
5283 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5285 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5288 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5292 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5293 if (conv == MONO_MARSHAL_CONV_INVALID) {
5294 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5295 mono_mb_emit_exception_marshal_directive (mb, msg);
5299 mono_mb_emit_ldarg (mb, argnum);
5301 mono_mb_emit_byte (mb, CEE_LDIND_I);
5302 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5303 mono_mb_emit_stloc (mb, conv_arg);
5306 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5310 mono_mb_emit_ldarg (mb, argnum);
5311 mono_mb_emit_ldloc (mb, conv_arg);
5312 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5313 mono_mb_emit_byte (mb, stind_op);
5318 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5319 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5320 /* We need to make a copy so the caller is able to free it */
5321 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5323 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5324 mono_mb_emit_stloc (mb, 3);
5328 g_assert_not_reached ();
5336 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5337 MonoMarshalSpec *spec, int conv_arg,
5338 MonoType **conv_arg_type, MarshalAction action)
5341 if (action == MARSHAL_ACTION_CONV_IN)
5342 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5344 MonoMethodBuilder *mb = m->mb;
5347 case MARSHAL_ACTION_CONV_IN: {
5348 MonoType *intptr_type;
5349 int dar_release_slot, pos;
5351 intptr_type = &mono_defaults.int_class->byval_arg;
5352 conv_arg = mono_mb_add_local (mb, intptr_type);
5353 *conv_arg_type = intptr_type;
5355 if (!sh_dangerous_add_ref)
5356 init_safe_handle ();
5358 mono_mb_emit_ldarg (mb, argnum);
5359 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5360 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5362 mono_mb_patch_branch (mb, pos);
5365 * My tests in show that ref SafeHandles are not really
5366 * passed as ref objects. Instead a NULL is passed as the
5369 mono_mb_emit_icon (mb, 0);
5370 mono_mb_emit_stloc (mb, conv_arg);
5374 /* Create local to hold the ref parameter to DangerousAddRef */
5375 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5377 /* set release = false; */
5378 mono_mb_emit_icon (mb, 0);
5379 mono_mb_emit_stloc (mb, dar_release_slot);
5381 /* safehandle.DangerousAddRef (ref release) */
5382 mono_mb_emit_ldarg (mb, argnum);
5383 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5384 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5386 /* Pull the handle field from SafeHandle */
5387 mono_mb_emit_ldarg (mb, argnum);
5388 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5389 mono_mb_emit_byte (mb, CEE_LDIND_I);
5390 mono_mb_emit_stloc (mb, conv_arg);
5395 case MARSHAL_ACTION_PUSH:
5397 mono_mb_emit_ldloc_addr (mb, conv_arg);
5399 mono_mb_emit_ldloc (mb, conv_arg);
5402 case MARSHAL_ACTION_CONV_OUT: {
5403 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5404 int dar_release_slot = conv_arg + 1;
5407 if (!sh_dangerous_release)
5408 init_safe_handle ();
5414 * My tests indicate that ref SafeHandles parameters are not actually
5415 * passed by ref, but instead a new Handle is created regardless of
5416 * whether a change happens in the unmanaged side.
5418 * Also, the Handle is created before calling into unmanaged code,
5419 * but we do not support that mechanism (getting to the original
5420 * handle) and it makes no difference where we create this
5422 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5424 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5427 /* refval = new SafeHandleDerived ()*/
5428 mono_mb_emit_ldarg (mb, argnum);
5429 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5430 mono_mb_emit_byte (mb, CEE_STIND_REF);
5432 /* refval.handle = returned_handle */
5433 mono_mb_emit_ldarg (mb, argnum);
5434 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5435 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5436 mono_mb_emit_ldloc (mb, conv_arg);
5437 mono_mb_emit_byte (mb, CEE_STIND_I);
5439 mono_mb_emit_ldloc (mb, dar_release_slot);
5440 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5441 mono_mb_emit_ldarg (mb, argnum);
5442 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5443 mono_mb_patch_branch (mb, label_next);
5448 case MARSHAL_ACTION_CONV_RESULT: {
5449 MonoMethod *ctor = NULL;
5450 int intptr_handle_slot;
5452 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5453 mono_mb_emit_byte (mb, CEE_POP);
5454 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5458 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5460 mono_mb_emit_byte (mb, CEE_POP);
5461 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5464 /* Store the IntPtr results into a local */
5465 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5466 mono_mb_emit_stloc (mb, intptr_handle_slot);
5468 /* Create return value */
5469 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5470 mono_mb_emit_stloc (mb, 3);
5472 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5473 mono_mb_emit_ldloc (mb, 3);
5474 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5475 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5476 mono_mb_emit_byte (mb, CEE_STIND_I);
5480 case MARSHAL_ACTION_MANAGED_CONV_IN:
5481 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5484 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5485 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5488 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5489 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5492 printf ("Unhandled case for MarshalAction: %d\n", action);
5500 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5501 MonoMarshalSpec *spec, int conv_arg,
5502 MonoType **conv_arg_type, MarshalAction action)
5505 if (action == MARSHAL_ACTION_CONV_IN)
5506 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5508 MonoMethodBuilder *mb = m->mb;
5511 case MARSHAL_ACTION_CONV_IN: {
5512 MonoType *intptr_type;
5514 intptr_type = &mono_defaults.int_class->byval_arg;
5515 conv_arg = mono_mb_add_local (mb, intptr_type);
5516 *conv_arg_type = intptr_type;
5519 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5520 mono_mb_emit_exception_marshal_directive (mb, msg);
5523 mono_mb_emit_ldarg_addr (mb, argnum);
5524 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5525 mono_mb_emit_byte (mb, CEE_ADD);
5526 mono_mb_emit_byte (mb, CEE_LDIND_I);
5527 mono_mb_emit_stloc (mb, conv_arg);
5531 case MARSHAL_ACTION_PUSH:
5532 mono_mb_emit_ldloc (mb, conv_arg);
5535 case MARSHAL_ACTION_CONV_OUT: {
5536 /* no resource release required */
5540 case MARSHAL_ACTION_CONV_RESULT: {
5541 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5542 mono_mb_emit_exception_marshal_directive (mb, msg);
5546 case MARSHAL_ACTION_MANAGED_CONV_IN:
5547 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5550 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5551 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5554 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5555 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5558 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5566 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5567 MonoMarshalSpec *spec,
5568 int conv_arg, MonoType **conv_arg_type,
5569 MarshalAction action)
5572 if (action == MARSHAL_ACTION_CONV_IN)
5573 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5575 MonoMethodBuilder *mb = m->mb;
5576 MonoClass *klass = mono_class_from_mono_type (t);
5580 case MARSHAL_ACTION_CONV_IN:
5581 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5582 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5584 m->orig_conv_args [argnum] = 0;
5586 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5587 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5588 mono_mb_emit_exception_marshal_directive (mb, msg);
5592 if (klass->delegate) {
5594 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5595 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5596 mono_mb_emit_exception_marshal_directive (mb, msg);
5598 mono_mb_emit_byte (mb, CEE_LDNULL);
5599 mono_mb_emit_stloc (mb, conv_arg);
5601 mono_mb_emit_ldarg (mb, argnum);
5602 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5603 mono_mb_emit_stloc (mb, conv_arg);
5605 } else if (klass == mono_defaults.stringbuilder_class) {
5606 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5607 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5611 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5612 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5613 mono_mb_emit_exception_marshal_directive (mb, msg);
5619 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5622 if (conv == MONO_MARSHAL_CONV_INVALID) {
5623 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5624 mono_mb_emit_exception_marshal_directive (mb, msg);
5628 mono_mb_emit_ldarg (mb, argnum);
5630 mono_mb_emit_byte (mb, CEE_LDIND_I);
5632 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5633 mono_mb_emit_stloc (mb, conv_arg);
5634 } else if (klass->blittable) {
5635 mono_mb_emit_byte (mb, CEE_LDNULL);
5636 mono_mb_emit_stloc (mb, conv_arg);
5638 mono_mb_emit_ldarg (mb, argnum);
5639 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5641 mono_mb_emit_ldarg (mb, argnum);
5642 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5643 mono_mb_emit_stloc (mb, conv_arg);
5645 mono_mb_patch_branch (mb, pos);
5648 mono_mb_emit_byte (mb, CEE_LDNULL);
5649 mono_mb_emit_stloc (mb, conv_arg);
5652 /* we dont need any conversions for out parameters */
5653 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5656 mono_mb_emit_ldarg (mb, argnum);
5657 mono_mb_emit_byte (mb, CEE_LDIND_I);
5660 mono_mb_emit_ldarg (mb, argnum);
5661 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5662 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5665 /* store the address of the source into local variable 0 */
5666 mono_mb_emit_stloc (mb, 0);
5667 mono_mb_emit_ldloc (mb, 0);
5668 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5670 /* allocate space for the native struct and store the address */
5671 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5672 mono_mb_emit_byte (mb, CEE_PREFIX1);
5673 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5674 mono_mb_emit_stloc (mb, conv_arg);
5677 /* Need to store the original buffer so we can free it later */
5678 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5679 mono_mb_emit_ldloc (mb, conv_arg);
5680 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5683 /* set the src_ptr */
5684 mono_mb_emit_ldloc (mb, 0);
5685 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5686 mono_mb_emit_stloc (mb, 0);
5689 mono_mb_emit_ldloc (mb, conv_arg);
5690 mono_mb_emit_stloc (mb, 1);
5692 /* emit valuetype conversion code */
5693 emit_struct_conv (mb, klass, FALSE);
5695 mono_mb_patch_branch (mb, pos);
5699 case MARSHAL_ACTION_CONV_OUT:
5700 if (klass == mono_defaults.stringbuilder_class) {
5702 MonoMarshalNative encoding;
5703 MonoMarshalConv conv;
5705 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5706 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5708 g_assert (encoding != -1);
5711 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5715 mono_mb_emit_ldarg (mb, argnum);
5716 mono_mb_emit_ldloc (mb, conv_arg);
5719 case MONO_NATIVE_LPWSTR:
5720 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5722 case MONO_NATIVE_LPSTR:
5723 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5726 g_assert_not_reached ();
5729 mono_mb_emit_byte (mb, CEE_STIND_REF);
5731 mono_mb_emit_ldarg (mb, argnum);
5732 mono_mb_emit_ldloc (mb, conv_arg);
5734 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5738 mono_mb_emit_ldloc (mb, conv_arg);
5739 mono_mb_emit_icall (mb, mono_marshal_free);
5744 if (klass->delegate) {
5746 mono_mb_emit_ldarg (mb, argnum);
5747 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5748 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5749 mono_mb_emit_ldloc (mb, conv_arg);
5750 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5751 mono_mb_emit_byte (mb, CEE_STIND_REF);
5756 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5757 /* allocate a new object */
5758 mono_mb_emit_ldarg (mb, argnum);
5759 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5760 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5761 mono_mb_emit_byte (mb, CEE_STIND_REF);
5764 /* dst = *argument */
5765 mono_mb_emit_ldarg (mb, argnum);
5768 mono_mb_emit_byte (mb, CEE_LDIND_I);
5770 mono_mb_emit_stloc (mb, 1);
5772 mono_mb_emit_ldloc (mb, 1);
5773 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5775 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5776 mono_mb_emit_ldloc (mb, 1);
5777 mono_mb_emit_icon (mb, sizeof (MonoObject));
5778 mono_mb_emit_byte (mb, CEE_ADD);
5779 mono_mb_emit_stloc (mb, 1);
5781 /* src = tmp_locals [i] */
5782 mono_mb_emit_ldloc (mb, conv_arg);
5783 mono_mb_emit_stloc (mb, 0);
5785 /* emit valuetype conversion code */
5786 emit_struct_conv (mb, klass, TRUE);
5788 /* Free the structure returned by the native code */
5789 emit_struct_free (mb, klass, conv_arg);
5791 if (m->orig_conv_args [argnum]) {
5793 * If the native function changed the pointer, then free
5794 * the original structure plus the new pointer.
5796 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5797 mono_mb_emit_ldloc (mb, conv_arg);
5798 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5800 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5801 g_assert (m->orig_conv_args [argnum]);
5803 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5806 mono_mb_emit_ldloc (mb, conv_arg);
5807 mono_mb_emit_icall (mb, mono_marshal_free);
5809 mono_mb_patch_branch (mb, pos2);
5813 /* Free the original structure passed to native code */
5814 emit_struct_free (mb, klass, conv_arg);
5816 mono_mb_patch_branch (mb, pos);
5819 case MARSHAL_ACTION_PUSH:
5821 mono_mb_emit_ldloc_addr (mb, conv_arg);
5823 mono_mb_emit_ldloc (mb, conv_arg);
5826 case MARSHAL_ACTION_CONV_RESULT:
5827 if (klass->delegate) {
5828 g_assert (!t->byref);
5829 mono_mb_emit_stloc (mb, 0);
5830 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5831 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5832 mono_mb_emit_ldloc (mb, 0);
5833 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5834 mono_mb_emit_stloc (mb, 3);
5837 mono_mb_emit_stloc (mb, 0);
5839 /* Make a copy since emit_conv modifies local 0 */
5840 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5841 mono_mb_emit_ldloc (mb, 0);
5842 mono_mb_emit_stloc (mb, loc);
5844 mono_mb_emit_byte (mb, CEE_LDNULL);
5845 mono_mb_emit_stloc (mb, 3);
5847 mono_mb_emit_ldloc (mb, 0);
5848 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5850 /* allocate result object */
5852 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5853 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5854 mono_mb_emit_stloc (mb, 3);
5858 mono_mb_emit_ldloc (mb, 3);
5859 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5860 mono_mb_emit_stloc (mb, 1);
5862 /* emit conversion code */
5863 emit_struct_conv (mb, klass, TRUE);
5865 emit_struct_free (mb, klass, loc);
5867 /* Free the pointer allocated by unmanaged code */
5868 mono_mb_emit_ldloc (mb, loc);
5869 mono_mb_emit_icall (mb, mono_marshal_free);
5870 mono_mb_patch_branch (mb, pos);
5874 case MARSHAL_ACTION_MANAGED_CONV_IN:
5875 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5877 if (klass->delegate) {
5878 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5879 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5880 mono_mb_emit_ldarg (mb, argnum);
5882 mono_mb_emit_byte (mb, CEE_LDIND_I);
5883 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5884 mono_mb_emit_stloc (mb, conv_arg);
5888 if (klass == mono_defaults.stringbuilder_class) {
5889 MonoMarshalNative encoding;
5891 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5894 g_assert (encoding == MONO_NATIVE_LPSTR);
5896 g_assert (!t->byref);
5897 g_assert (encoding != -1);
5899 mono_mb_emit_ldarg (mb, argnum);
5900 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5901 mono_mb_emit_stloc (mb, conv_arg);
5905 /* The class can not have an automatic layout */
5906 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5907 mono_mb_emit_auto_layout_exception (mb, klass);
5911 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5912 mono_mb_emit_byte (mb, CEE_LDNULL);
5913 mono_mb_emit_stloc (mb, conv_arg);
5918 mono_mb_emit_ldarg (mb, argnum);
5922 /* Check for NULL and raise an exception */
5923 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5925 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5927 mono_mb_patch_branch (mb, pos2);
5928 mono_mb_emit_ldarg (mb, argnum);
5929 mono_mb_emit_byte (mb, CEE_LDIND_I);
5932 mono_mb_emit_stloc (mb, 0);
5934 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5935 mono_mb_emit_stloc (mb, conv_arg);
5937 mono_mb_emit_ldloc (mb, 0);
5938 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5940 /* Create and set dst */
5941 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5942 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5943 mono_mb_emit_stloc (mb, conv_arg);
5944 mono_mb_emit_ldloc (mb, conv_arg);
5945 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5946 mono_mb_emit_stloc (mb, 1);
5948 /* emit valuetype conversion code */
5949 emit_struct_conv (mb, klass, TRUE);
5951 mono_mb_patch_branch (mb, pos);
5954 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5955 if (klass->delegate) {
5958 mono_mb_emit_ldarg (mb, argnum);
5959 mono_mb_emit_ldloc (mb, conv_arg);
5960 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5961 mono_mb_emit_byte (mb, stind_op);
5967 /* Check for null */
5968 mono_mb_emit_ldloc (mb, conv_arg);
5969 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5970 mono_mb_emit_ldarg (mb, argnum);
5971 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5972 mono_mb_emit_byte (mb, CEE_STIND_REF);
5973 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5975 mono_mb_patch_branch (mb, pos);
5978 mono_mb_emit_ldloc (mb, conv_arg);
5979 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5980 mono_mb_emit_stloc (mb, 0);
5982 /* Allocate and set dest */
5983 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5984 mono_mb_emit_byte (mb, CEE_CONV_I);
5985 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5986 mono_mb_emit_stloc (mb, 1);
5988 /* Update argument pointer */
5989 mono_mb_emit_ldarg (mb, argnum);
5990 mono_mb_emit_ldloc (mb, 1);
5991 mono_mb_emit_byte (mb, CEE_STIND_I);
5993 /* emit valuetype conversion code */
5994 emit_struct_conv (mb, klass, FALSE);
5996 mono_mb_patch_branch (mb, pos2);
5997 } else if (klass == mono_defaults.stringbuilder_class) {
5998 // FIXME: What to do here ?
6000 /* byval [Out] marshalling */
6002 /* FIXME: Handle null */
6005 mono_mb_emit_ldloc (mb, conv_arg);
6006 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6007 mono_mb_emit_stloc (mb, 0);
6010 mono_mb_emit_ldarg (mb, argnum);
6011 mono_mb_emit_stloc (mb, 1);
6013 /* emit valuetype conversion code */
6014 emit_struct_conv (mb, klass, FALSE);
6018 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6019 if (klass->delegate) {
6020 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6021 mono_mb_emit_stloc (mb, 3);
6025 /* The class can not have an automatic layout */
6026 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6027 mono_mb_emit_auto_layout_exception (mb, klass);
6031 mono_mb_emit_stloc (mb, 0);
6032 /* Check for null */
6033 mono_mb_emit_ldloc (mb, 0);
6034 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6035 mono_mb_emit_byte (mb, CEE_LDNULL);
6036 mono_mb_emit_stloc (mb, 3);
6037 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6039 mono_mb_patch_branch (mb, pos);
6042 mono_mb_emit_ldloc (mb, 0);
6043 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6044 mono_mb_emit_stloc (mb, 0);
6046 /* Allocate and set dest */
6047 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6048 mono_mb_emit_byte (mb, CEE_CONV_I);
6049 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6050 mono_mb_emit_byte (mb, CEE_DUP);
6051 mono_mb_emit_stloc (mb, 1);
6052 mono_mb_emit_stloc (mb, 3);
6054 emit_struct_conv (mb, klass, FALSE);
6056 mono_mb_patch_branch (mb, pos2);
6060 g_assert_not_reached ();
6071 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6072 MonoMarshalSpec *spec,
6073 int conv_arg, MonoType **conv_arg_type,
6074 MarshalAction action)
6076 MonoMethodBuilder *mb = m->mb;
6077 static MonoMethod *get_object_for_native_variant = NULL;
6078 static MonoMethod *get_native_variant_for_object = NULL;
6080 if (!get_object_for_native_variant)
6081 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6082 g_assert (get_object_for_native_variant);
6084 if (!get_native_variant_for_object)
6085 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6086 g_assert (get_native_variant_for_object);
6089 case MARSHAL_ACTION_CONV_IN: {
6090 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6093 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6095 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6097 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6100 mono_mb_emit_ldarg (mb, argnum);
6102 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6103 mono_mb_emit_ldloc_addr (mb, conv_arg);
6104 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6108 case MARSHAL_ACTION_CONV_OUT: {
6109 static MonoMethod *variant_clear = NULL;
6112 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6113 g_assert (variant_clear);
6116 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6117 mono_mb_emit_ldarg (mb, argnum);
6118 mono_mb_emit_ldloc_addr (mb, conv_arg);
6119 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6120 mono_mb_emit_byte (mb, CEE_STIND_REF);
6123 mono_mb_emit_ldloc_addr (mb, conv_arg);
6124 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6128 case MARSHAL_ACTION_PUSH:
6130 mono_mb_emit_ldloc_addr (mb, conv_arg);
6132 mono_mb_emit_ldloc (mb, conv_arg);
6135 case MARSHAL_ACTION_CONV_RESULT: {
6136 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6137 mono_mb_emit_exception_marshal_directive (mb, msg);
6141 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6142 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6145 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6147 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6149 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6153 mono_mb_emit_ldarg (mb, argnum);
6155 mono_mb_emit_ldarg_addr (mb, argnum);
6156 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6157 mono_mb_emit_stloc (mb, conv_arg);
6161 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6162 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6163 mono_mb_emit_ldloc (mb, conv_arg);
6164 mono_mb_emit_ldarg (mb, argnum);
6165 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6170 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6171 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6172 mono_mb_emit_exception_marshal_directive (mb, msg);
6177 g_assert_not_reached ();
6183 #endif /* DISABLE_COM */
6184 #endif /* DISABLE_JIT */
6187 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6189 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6190 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6192 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6194 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6206 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6207 MonoMarshalSpec *spec,
6208 int conv_arg, MonoType **conv_arg_type,
6209 MarshalAction action)
6213 case MARSHAL_ACTION_CONV_IN:
6214 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6216 case MARSHAL_ACTION_MANAGED_CONV_IN:
6217 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6221 MonoMethodBuilder *mb = m->mb;
6222 MonoClass *klass = mono_class_from_mono_type (t);
6223 gboolean need_convert, need_free;
6224 MonoMarshalNative encoding;
6226 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6229 case MARSHAL_ACTION_CONV_IN:
6230 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6231 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6233 if (klass->element_class->blittable) {
6234 mono_mb_emit_ldarg (mb, argnum);
6236 mono_mb_emit_byte (mb, CEE_LDIND_I);
6237 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6238 mono_mb_emit_stloc (mb, conv_arg);
6241 guint32 label1, label2, label3;
6242 int index_var, src_var, dest_ptr, esize;
6243 MonoMarshalConv conv;
6244 gboolean is_string = FALSE;
6246 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6248 eklass = klass->element_class;
6250 if (eklass == mono_defaults.string_class) {
6252 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6254 else if (eklass == mono_defaults.stringbuilder_class) {
6256 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6259 conv = MONO_MARSHAL_CONV_INVALID;
6261 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6262 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6263 mono_mb_emit_exception_marshal_directive (mb, msg);
6267 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6268 mono_mb_emit_ldarg (mb, argnum);
6270 mono_mb_emit_byte (mb, CEE_LDIND_I);
6271 mono_mb_emit_stloc (mb, src_var);
6274 mono_mb_emit_ldloc (mb, src_var);
6275 mono_mb_emit_stloc (mb, conv_arg);
6276 mono_mb_emit_ldloc (mb, src_var);
6277 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6280 esize = sizeof (gpointer);
6281 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6282 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6284 esize = mono_class_native_size (eklass, NULL);
6286 /* allocate space for the native struct and store the address */
6287 mono_mb_emit_icon (mb, esize);
6288 mono_mb_emit_ldloc (mb, src_var);
6289 mono_mb_emit_byte (mb, CEE_LDLEN);
6291 if (eklass == mono_defaults.string_class) {
6292 /* Make the array bigger for the terminating null */
6293 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6294 mono_mb_emit_byte (mb, CEE_ADD);
6296 mono_mb_emit_byte (mb, CEE_MUL);
6297 mono_mb_emit_byte (mb, CEE_PREFIX1);
6298 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6299 mono_mb_emit_stloc (mb, conv_arg);
6301 mono_mb_emit_ldloc (mb, conv_arg);
6302 mono_mb_emit_stloc (mb, dest_ptr);
6304 /* Emit marshalling loop */
6305 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6306 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6307 mono_mb_emit_stloc (mb, index_var);
6308 label2 = mono_mb_get_label (mb);
6309 mono_mb_emit_ldloc (mb, index_var);
6310 mono_mb_emit_ldloc (mb, src_var);
6311 mono_mb_emit_byte (mb, CEE_LDLEN);
6312 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6314 /* Emit marshalling code */
6318 mono_mb_emit_ldloc (mb, dest_ptr);
6319 mono_mb_emit_ldloc (mb, src_var);
6320 mono_mb_emit_ldloc (mb, index_var);
6321 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6322 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6323 mono_mb_emit_byte (mb, stind_op);
6325 /* set the src_ptr */
6326 mono_mb_emit_ldloc (mb, src_var);
6327 mono_mb_emit_ldloc (mb, index_var);
6328 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6329 mono_mb_emit_stloc (mb, 0);
6332 mono_mb_emit_ldloc (mb, dest_ptr);
6333 mono_mb_emit_stloc (mb, 1);
6335 /* emit valuetype conversion code */
6336 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6339 mono_mb_emit_add_to_local (mb, index_var, 1);
6340 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6342 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6344 mono_mb_patch_branch (mb, label3);
6346 if (eklass == mono_defaults.string_class) {
6347 /* Null terminate */
6348 mono_mb_emit_ldloc (mb, dest_ptr);
6349 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6350 mono_mb_emit_byte (mb, CEE_STIND_REF);
6353 mono_mb_patch_branch (mb, label1);
6358 case MARSHAL_ACTION_CONV_OUT:
6359 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6360 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);
6361 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6364 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6365 int param_num = spec->data.array_data.param_num;
6366 MonoType *param_type;
6368 param_type = m->sig->params [param_num];
6370 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6371 char *msg = g_strdup ("Not implemented.");
6372 mono_mb_emit_exception_marshal_directive (mb, msg);
6377 mono_mb_emit_ldarg (mb, argnum);
6379 /* Create the managed array */
6380 mono_mb_emit_ldarg (mb, param_num);
6381 if (m->sig->params [param_num]->byref)
6382 // FIXME: Support other types
6383 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6384 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6385 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6386 /* Store into argument */
6387 mono_mb_emit_byte (mb, CEE_STIND_REF);
6391 if (need_convert || need_free) {
6392 /* FIXME: Optimize blittable case */
6394 guint32 label1, label2, label3;
6395 int index_var, src_ptr, loc, esize;
6397 eklass = klass->element_class;
6398 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6399 esize = sizeof (gpointer);
6400 else if (eklass == mono_defaults.char_class)
6401 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6403 esize = mono_class_native_size (eklass, NULL);
6404 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6405 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6408 mono_mb_emit_ldarg (mb, argnum);
6410 mono_mb_emit_byte (mb, CEE_LDIND_I);
6411 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6413 mono_mb_emit_ldloc (mb, conv_arg);
6414 mono_mb_emit_stloc (mb, src_ptr);
6416 /* Emit marshalling loop */
6417 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6418 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6419 mono_mb_emit_stloc (mb, index_var);
6420 label2 = mono_mb_get_label (mb);
6421 mono_mb_emit_ldloc (mb, index_var);
6422 mono_mb_emit_ldarg (mb, argnum);
6424 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6425 mono_mb_emit_byte (mb, CEE_LDLEN);
6426 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6428 /* Emit marshalling code */
6430 if (eklass == mono_defaults.stringbuilder_class) {
6431 gboolean need_free2;
6432 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6434 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6437 mono_mb_emit_ldarg (mb, argnum);
6439 mono_mb_emit_byte (mb, CEE_LDIND_I);
6440 mono_mb_emit_ldloc (mb, index_var);
6441 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6444 mono_mb_emit_ldloc (mb, src_ptr);
6445 mono_mb_emit_byte (mb, CEE_LDIND_I);
6447 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6451 mono_mb_emit_ldloc (mb, src_ptr);
6452 mono_mb_emit_byte (mb, CEE_LDIND_I);
6454 mono_mb_emit_icall (mb, mono_marshal_free);
6457 else if (eklass == mono_defaults.string_class) {
6460 mono_mb_emit_ldloc (mb, src_ptr);
6461 mono_mb_emit_byte (mb, CEE_LDIND_I);
6463 mono_mb_emit_icall (mb, mono_marshal_free);
6468 /* set the src_ptr */
6469 mono_mb_emit_ldloc (mb, src_ptr);
6470 mono_mb_emit_stloc (mb, 0);
6473 mono_mb_emit_ldarg (mb, argnum);
6475 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6476 mono_mb_emit_ldloc (mb, index_var);
6477 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6478 mono_mb_emit_stloc (mb, 1);
6480 /* emit valuetype conversion code */
6481 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6485 mono_mb_emit_ldloc (mb, src_ptr);
6486 mono_mb_emit_stloc (mb, loc);
6487 mono_mb_emit_ldloc (mb, loc);
6489 emit_struct_free (mb, eklass, loc);
6493 mono_mb_emit_add_to_local (mb, index_var, 1);
6494 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6496 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6498 mono_mb_patch_branch (mb, label1);
6499 mono_mb_patch_branch (mb, label3);
6502 if (klass->element_class->blittable) {
6503 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6505 mono_mb_emit_ldarg (mb, argnum);
6507 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6508 mono_mb_emit_ldloc (mb, conv_arg);
6509 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6514 case MARSHAL_ACTION_PUSH:
6516 mono_mb_emit_ldloc_addr (mb, conv_arg);
6518 mono_mb_emit_ldloc (mb, conv_arg);
6521 case MARSHAL_ACTION_CONV_RESULT:
6522 /* fixme: we need conversions here */
6523 mono_mb_emit_stloc (mb, 3);
6526 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6528 guint32 label1, label2, label3;
6529 int index_var, src_ptr, esize, param_num, num_elem;
6530 MonoMarshalConv conv;
6531 gboolean is_string = FALSE;
6533 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6534 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6537 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6538 mono_mb_emit_exception_marshal_directive (mb, msg);
6542 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6543 mono_mb_emit_exception_marshal_directive (mb, msg);
6546 if (spec->native != MONO_NATIVE_LPARRAY) {
6547 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6548 mono_mb_emit_exception_marshal_directive (mb, msg);
6552 /* FIXME: t is from the method which is wrapped, not the delegate type */
6553 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6555 param_num = spec->data.array_data.param_num;
6556 num_elem = spec->data.array_data.num_elem;
6557 if (spec->data.array_data.elem_mult == 0)
6558 /* param_num is not specified */
6561 if (param_num == -1) {
6562 if (num_elem <= 0) {
6563 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6564 mono_mb_emit_exception_marshal_directive (mb, msg);
6569 /* FIXME: Optimize blittable case */
6571 eklass = klass->element_class;
6572 if (eklass == mono_defaults.string_class) {
6574 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6576 else if (eklass == mono_defaults.stringbuilder_class) {
6578 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6581 conv = MONO_MARSHAL_CONV_INVALID;
6583 mono_marshal_load_type_info (eklass);
6586 esize = sizeof (gpointer);
6588 esize = mono_class_native_size (eklass, NULL);
6589 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6591 mono_mb_emit_byte (mb, CEE_LDNULL);
6592 mono_mb_emit_stloc (mb, conv_arg);
6594 /* Check param index */
6595 if (param_num != -1) {
6596 if (param_num >= m->sig->param_count) {
6597 char *msg = g_strdup ("Array size control parameter index is out of range.");
6598 mono_mb_emit_exception_marshal_directive (mb, msg);
6601 switch (m->sig->params [param_num]->type) {
6614 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6615 mono_mb_emit_exception_marshal_directive (mb, msg);
6622 mono_mb_emit_ldarg (mb, argnum);
6623 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6625 mono_mb_emit_ldarg (mb, argnum);
6626 mono_mb_emit_stloc (mb, src_ptr);
6628 /* Create managed array */
6630 * The LPArray marshalling spec says that sometimes param_num starts
6631 * from 1, sometimes it starts from 0. But MS seems to allways start
6635 if (param_num == -1) {
6636 mono_mb_emit_icon (mb, num_elem);
6638 mono_mb_emit_ldarg (mb, param_num);
6640 mono_mb_emit_icon (mb, num_elem);
6641 mono_mb_emit_byte (mb, CEE_ADD);
6643 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6646 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6647 mono_mb_emit_stloc (mb, conv_arg);
6649 if (eklass->blittable) {
6650 mono_mb_emit_ldloc (mb, conv_arg);
6651 mono_mb_emit_byte (mb, CEE_CONV_I);
6652 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6653 mono_mb_emit_byte (mb, CEE_ADD);
6654 mono_mb_emit_ldarg (mb, argnum);
6655 mono_mb_emit_ldloc (mb, conv_arg);
6656 mono_mb_emit_byte (mb, CEE_LDLEN);
6657 mono_mb_emit_icon (mb, esize);
6658 mono_mb_emit_byte (mb, CEE_MUL);
6659 mono_mb_emit_byte (mb, CEE_PREFIX1);
6660 mono_mb_emit_byte (mb, CEE_CPBLK);
6664 /* Emit marshalling loop */
6665 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6666 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6667 mono_mb_emit_stloc (mb, index_var);
6668 label2 = mono_mb_get_label (mb);
6669 mono_mb_emit_ldloc (mb, index_var);
6670 mono_mb_emit_ldloc (mb, conv_arg);
6671 mono_mb_emit_byte (mb, CEE_LDLEN);
6672 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6674 /* Emit marshalling code */
6676 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6678 mono_mb_emit_ldloc (mb, conv_arg);
6679 mono_mb_emit_ldloc (mb, index_var);
6681 mono_mb_emit_ldloc (mb, src_ptr);
6682 mono_mb_emit_byte (mb, CEE_LDIND_I);
6684 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6685 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6688 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6689 mono_mb_emit_exception_marshal_directive (mb, msg);
6693 mono_mb_emit_add_to_local (mb, index_var, 1);
6694 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6696 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6698 mono_mb_patch_branch (mb, label1);
6699 mono_mb_patch_branch (mb, label3);
6703 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6705 guint32 label1, label2, label3;
6706 int index_var, dest_ptr, esize, param_num, num_elem;
6707 MonoMarshalConv conv;
6708 gboolean is_string = FALSE;
6711 /* Already handled in CONV_IN */
6714 /* These are already checked in CONV_IN */
6715 g_assert (!t->byref);
6716 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6717 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6719 param_num = spec->data.array_data.param_num;
6720 num_elem = spec->data.array_data.num_elem;
6722 if (spec->data.array_data.elem_mult == 0)
6723 /* param_num is not specified */
6726 if (param_num == -1) {
6727 if (num_elem <= 0) {
6728 g_assert_not_reached ();
6732 /* FIXME: Optimize blittable case */
6734 eklass = klass->element_class;
6735 if (eklass == mono_defaults.string_class) {
6737 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6739 else if (eklass == mono_defaults.stringbuilder_class) {
6741 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6744 conv = MONO_MARSHAL_CONV_INVALID;
6746 mono_marshal_load_type_info (eklass);
6749 esize = sizeof (gpointer);
6751 esize = mono_class_native_size (eklass, NULL);
6753 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6756 mono_mb_emit_ldloc (mb, conv_arg);
6757 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6759 mono_mb_emit_ldarg (mb, argnum);
6760 mono_mb_emit_stloc (mb, dest_ptr);
6762 if (eklass->blittable) {
6764 mono_mb_emit_ldarg (mb, argnum);
6766 mono_mb_emit_ldloc (mb, conv_arg);
6767 mono_mb_emit_byte (mb, CEE_CONV_I);
6768 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6769 mono_mb_emit_byte (mb, CEE_ADD);
6771 mono_mb_emit_ldloc (mb, conv_arg);
6772 mono_mb_emit_byte (mb, CEE_LDLEN);
6773 mono_mb_emit_icon (mb, esize);
6774 mono_mb_emit_byte (mb, CEE_MUL);
6775 mono_mb_emit_byte (mb, CEE_PREFIX1);
6776 mono_mb_emit_byte (mb, CEE_CPBLK);
6780 /* Emit marshalling loop */
6781 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6782 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6783 mono_mb_emit_stloc (mb, index_var);
6784 label2 = mono_mb_get_label (mb);
6785 mono_mb_emit_ldloc (mb, index_var);
6786 mono_mb_emit_ldloc (mb, conv_arg);
6787 mono_mb_emit_byte (mb, CEE_LDLEN);
6788 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6790 /* Emit marshalling code */
6793 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6796 mono_mb_emit_ldloc (mb, dest_ptr);
6799 mono_mb_emit_ldloc (mb, conv_arg);
6800 mono_mb_emit_ldloc (mb, index_var);
6802 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6804 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6805 mono_mb_emit_byte (mb, stind_op);
6808 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6809 mono_mb_emit_exception_marshal_directive (mb, msg);
6813 mono_mb_emit_add_to_local (mb, index_var, 1);
6814 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6816 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6818 mono_mb_patch_branch (mb, label1);
6819 mono_mb_patch_branch (mb, label3);
6823 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6825 guint32 label1, label2, label3;
6826 int index_var, src, dest, esize;
6827 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6828 gboolean is_string = FALSE;
6830 g_assert (!t->byref);
6832 eklass = klass->element_class;
6834 mono_marshal_load_type_info (eklass);
6836 if (eklass == mono_defaults.string_class) {
6838 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6841 g_assert_not_reached ();
6845 esize = sizeof (gpointer);
6846 else if (eklass == mono_defaults.char_class)
6847 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6849 esize = mono_class_native_size (eklass, NULL);
6851 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6852 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6854 mono_mb_emit_stloc (mb, src);
6855 mono_mb_emit_ldloc (mb, src);
6856 mono_mb_emit_stloc (mb, 3);
6858 /* Check for null */
6859 mono_mb_emit_ldloc (mb, src);
6860 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6862 /* Allocate native array */
6863 mono_mb_emit_icon (mb, esize);
6864 mono_mb_emit_ldloc (mb, src);
6865 mono_mb_emit_byte (mb, CEE_LDLEN);
6867 if (eklass == mono_defaults.string_class) {
6868 /* Make the array bigger for the terminating null */
6869 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6870 mono_mb_emit_byte (mb, CEE_ADD);
6872 mono_mb_emit_byte (mb, CEE_MUL);
6873 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6874 mono_mb_emit_stloc (mb, dest);
6875 mono_mb_emit_ldloc (mb, dest);
6876 mono_mb_emit_stloc (mb, 3);
6878 /* Emit marshalling loop */
6879 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6880 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6881 mono_mb_emit_stloc (mb, index_var);
6882 label2 = mono_mb_get_label (mb);
6883 mono_mb_emit_ldloc (mb, index_var);
6884 mono_mb_emit_ldloc (mb, src);
6885 mono_mb_emit_byte (mb, CEE_LDLEN);
6886 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6888 /* Emit marshalling code */
6891 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6894 mono_mb_emit_ldloc (mb, dest);
6897 mono_mb_emit_ldloc (mb, src);
6898 mono_mb_emit_ldloc (mb, index_var);
6900 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6902 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6903 mono_mb_emit_byte (mb, stind_op);
6906 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6907 mono_mb_emit_exception_marshal_directive (mb, msg);
6911 mono_mb_emit_add_to_local (mb, index_var, 1);
6912 mono_mb_emit_add_to_local (mb, dest, esize);
6914 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6916 mono_mb_patch_branch (mb, label3);
6917 mono_mb_patch_branch (mb, label1);
6921 g_assert_not_reached ();
6928 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6931 return &mono_defaults.int32_class->byval_arg;
6933 switch (spec->native) {
6934 case MONO_NATIVE_I1:
6935 case MONO_NATIVE_U1:
6936 return &mono_defaults.byte_class->byval_arg;
6937 case MONO_NATIVE_VARIANTBOOL:
6938 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6939 return &mono_defaults.int16_class->byval_arg;
6940 case MONO_NATIVE_BOOLEAN:
6941 return &mono_defaults.int32_class->byval_arg;
6943 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6944 return &mono_defaults.int32_class->byval_arg;
6950 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6952 MonoClass* conv_arg_class = mono_defaults.int32_class;
6954 switch (spec->native) {
6955 case MONO_NATIVE_I1:
6956 case MONO_NATIVE_U1:
6957 conv_arg_class = mono_defaults.byte_class;
6958 if (ldop) *ldop = CEE_LDIND_I1;
6960 case MONO_NATIVE_VARIANTBOOL:
6961 conv_arg_class = mono_defaults.int16_class;
6962 if (ldop) *ldop = CEE_LDIND_I2;
6964 case MONO_NATIVE_BOOLEAN:
6967 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6970 return conv_arg_class;
6974 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6975 MonoMarshalSpec *spec,
6976 int conv_arg, MonoType **conv_arg_type,
6977 MarshalAction action)
6981 case MARSHAL_ACTION_CONV_IN:
6983 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6985 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6988 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6989 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6991 *conv_arg_type = &conv_arg_class->this_arg;
6993 *conv_arg_type = &conv_arg_class->byval_arg;
6999 MonoMethodBuilder *mb = m->mb;
7002 case MARSHAL_ACTION_CONV_IN: {
7003 MonoType *local_type;
7005 guint8 ldc_op = CEE_LDC_I4_1;
7007 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7009 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7011 *conv_arg_type = local_type;
7012 conv_arg = mono_mb_add_local (mb, local_type);
7014 mono_mb_emit_ldarg (mb, argnum);
7016 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7017 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7018 mono_mb_emit_byte (mb, ldc_op);
7019 mono_mb_emit_stloc (mb, conv_arg);
7020 mono_mb_patch_branch (mb, label_false);
7025 case MARSHAL_ACTION_CONV_OUT:
7027 int label_false, label_end;
7031 mono_mb_emit_ldarg (mb, argnum);
7032 mono_mb_emit_ldloc (mb, conv_arg);
7034 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7035 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7037 label_end = mono_mb_emit_branch (mb, CEE_BR);
7038 mono_mb_patch_branch (mb, label_false);
7039 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7040 mono_mb_patch_branch (mb, label_end);
7042 mono_mb_emit_byte (mb, CEE_STIND_I1);
7046 case MARSHAL_ACTION_PUSH:
7048 mono_mb_emit_ldloc_addr (mb, conv_arg);
7050 mono_mb_emit_ldloc (mb, conv_arg);
7052 mono_mb_emit_ldarg (mb, argnum);
7055 case MARSHAL_ACTION_CONV_RESULT:
7056 /* maybe we need to make sure that it fits within 8 bits */
7057 mono_mb_emit_stloc (mb, 3);
7060 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7061 MonoClass* conv_arg_class = mono_defaults.int32_class;
7062 guint8 ldop = CEE_LDIND_I4;
7063 int label_null, label_false;
7065 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7066 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7069 *conv_arg_type = &conv_arg_class->this_arg;
7071 *conv_arg_type = &conv_arg_class->byval_arg;
7074 mono_mb_emit_ldarg (mb, argnum);
7078 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7079 mono_mb_emit_ldarg (mb, argnum);
7080 mono_mb_emit_byte (mb, ldop);
7084 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7085 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7086 mono_mb_emit_stloc (mb, conv_arg);
7087 mono_mb_patch_branch (mb, label_false);
7090 mono_mb_patch_branch (mb, label_null);
7094 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7095 guint8 stop = CEE_STIND_I4;
7096 guint8 ldc_op = CEE_LDC_I4_1;
7097 int label_null,label_false, label_end;;
7102 switch (spec->native) {
7103 case MONO_NATIVE_I1:
7104 case MONO_NATIVE_U1:
7105 stop = CEE_STIND_I1;
7107 case MONO_NATIVE_VARIANTBOOL:
7108 stop = CEE_STIND_I2;
7109 ldc_op = CEE_LDC_I4_M1;
7117 mono_mb_emit_ldarg (mb, argnum);
7118 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7120 mono_mb_emit_ldarg (mb, argnum);
7121 mono_mb_emit_ldloc (mb, conv_arg);
7123 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7124 mono_mb_emit_byte (mb, ldc_op);
7125 label_end = mono_mb_emit_branch (mb, CEE_BR);
7127 mono_mb_patch_branch (mb, label_false);
7128 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7129 mono_mb_patch_branch (mb, label_end);
7131 mono_mb_emit_byte (mb, stop);
7132 mono_mb_patch_branch (mb, label_null);
7137 g_assert_not_reached ();
7144 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7145 MonoMarshalSpec *spec, int conv_arg,
7146 MonoType **conv_arg_type, MarshalAction action)
7149 MonoMethodBuilder *mb = m->mb;
7152 case MARSHAL_ACTION_CONV_IN:
7153 /* MS seems to allow this in some cases, ie. bxc #158 */
7155 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7156 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7157 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7162 case MARSHAL_ACTION_PUSH:
7163 mono_mb_emit_ldarg (mb, argnum);
7166 case MARSHAL_ACTION_CONV_RESULT:
7167 /* no conversions necessary */
7168 mono_mb_emit_stloc (mb, 3);
7179 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7180 MonoMarshalSpec *spec, int conv_arg,
7181 MonoType **conv_arg_type, MarshalAction action)
7184 MonoMethodBuilder *mb = m->mb;
7187 case MARSHAL_ACTION_PUSH:
7188 /* fixme: dont know how to marshal that. We cant simply
7189 * convert it to a one byte UTF8 character, because an
7190 * unicode character may need more that one byte in UTF8 */
7191 mono_mb_emit_ldarg (mb, argnum);
7194 case MARSHAL_ACTION_CONV_RESULT:
7195 /* fixme: we need conversions here */
7196 mono_mb_emit_stloc (mb, 3);
7207 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7208 MonoMarshalSpec *spec, int conv_arg,
7209 MonoType **conv_arg_type, MarshalAction action)
7212 MonoMethodBuilder *mb = m->mb;
7215 case MARSHAL_ACTION_PUSH:
7216 mono_mb_emit_ldarg (mb, argnum);
7219 case MARSHAL_ACTION_CONV_RESULT:
7220 /* no conversions necessary */
7221 mono_mb_emit_stloc (mb, 3);
7232 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7233 MonoMarshalSpec *spec, int conv_arg,
7234 MonoType **conv_arg_type, MarshalAction action)
7236 /* Ensure that we have marshalling info for this param */
7237 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7239 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7240 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7242 if (spec && spec->native == MONO_NATIVE_ASANY)
7243 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7246 case MONO_TYPE_VALUETYPE:
7247 if (t->data.klass == mono_defaults.handleref_class)
7248 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7250 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7251 case MONO_TYPE_STRING:
7252 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7253 case MONO_TYPE_CLASS:
7254 case MONO_TYPE_OBJECT:
7255 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7256 if (spec && spec->native == MONO_NATIVE_STRUCT)
7257 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7260 #if !defined(DISABLE_COM)
7261 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7262 spec->native == MONO_NATIVE_IDISPATCH ||
7263 spec->native == MONO_NATIVE_INTERFACE))
7264 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7265 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7266 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7267 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7268 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7271 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7272 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7273 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7275 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7276 case MONO_TYPE_ARRAY:
7277 case MONO_TYPE_SZARRAY:
7278 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7279 case MONO_TYPE_BOOLEAN:
7280 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7282 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7283 case MONO_TYPE_CHAR:
7284 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7297 case MONO_TYPE_FNPTR:
7298 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7299 case MONO_TYPE_GENERICINST:
7300 if (mono_type_generic_inst_is_valuetype (t))
7301 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7303 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7311 * mono_marshal_emit_native_wrapper:
7312 * @image: the image to use for looking up custom marshallers
7313 * @sig: The signature of the native function
7314 * @piinfo: Marshalling information
7315 * @mspecs: Marshalling information
7316 * @aot: whenever the created method will be compiled by the AOT compiler
7317 * @method: if non-NULL, the pinvoke method to call
7318 * @check_exceptions: Whenever to check for pending exceptions after the native call
7319 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7321 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7324 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)
7326 EmitMarshalContext m;
7327 MonoMethodSignature *csig;
7329 int i, argnum, *tmp_locals;
7330 int type, param_shift = 0;
7331 int coop_gc_stack_dummy, coop_gc_var;
7333 memset (&m, 0, sizeof (m));
7338 /* we copy the signature, so that we can set pinvoke to 0 */
7340 /* The function address is passed as the first argument */
7341 g_assert (!sig->hasthis);
7344 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7352 /* we allocate local for use with emit_struct_conv() */
7353 /* allocate local 0 (pointer) src_ptr */
7354 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7355 /* allocate local 1 (pointer) dst_ptr */
7356 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7357 /* allocate local 2 (boolean) delete_old */
7358 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7360 /* delete_old = FALSE */
7361 mono_mb_emit_icon (mb, 0);
7362 mono_mb_emit_stloc (mb, 2);
7364 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7365 /* allocate local 3 to store the return value */
7366 mono_mb_add_local (mb, sig->ret);
7369 if (mono_threads_is_coop_enabled ()) {
7370 /* local 4, dummy local used to get a stack address for suspend funcs */
7371 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7372 /* local 5, the local to be used when calling the suspend funcs */
7373 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7377 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7379 * ret = method (...);
7381 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7388 if (MONO_TYPE_ISSTRUCT (sig->ret))
7389 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7391 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7392 /* Return type custom marshaling */
7394 * Since we can't determine the return type of the unmanaged function,
7395 * we assume it returns a pointer, and pass that pointer to
7396 * MarshalNativeToManaged.
7398 csig->ret = &mono_defaults.int_class->byval_arg;
7401 /* we first do all conversions */
7402 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7403 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7405 for (i = 0; i < sig->param_count; i ++) {
7406 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7409 // In coop mode need to register blocking state during native call
7410 if (mono_threads_is_coop_enabled ()) {
7411 // Perform an extra, early lookup of the function address, so any exceptions
7412 // potentially resulting from the lookup occur before entering blocking mode.
7413 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7414 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7415 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7416 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7419 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7420 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7421 mono_mb_emit_stloc (mb, coop_gc_var);
7424 /* push all arguments */
7427 mono_mb_emit_byte (mb, CEE_LDARG_0);
7429 for (i = 0; i < sig->param_count; i++) {
7430 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7433 /* call the native method */
7435 mono_mb_emit_byte (mb, CEE_LDARG_0);
7436 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7437 mono_mb_emit_byte (mb, CEE_LDIND_I);
7438 mono_mb_emit_calli (mb, csig);
7439 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7441 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7443 g_assert_not_reached ();
7447 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7448 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7449 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7450 mono_mb_emit_calli (mb, csig);
7452 mono_mb_emit_native_call (mb, csig, func);
7456 /* Set LastError if needed */
7457 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7459 static MonoMethodSignature *get_last_error_sig = NULL;
7460 if (!get_last_error_sig) {
7461 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7462 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7463 get_last_error_sig->pinvoke = 1;
7467 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7468 * clobber its value.
7470 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7471 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7473 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7477 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7478 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7479 mono_class_init (klass);
7480 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7481 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7482 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7483 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7484 mono_mb_emit_stloc (mb, m.vtaddr_var);
7488 /* Unblock before converting the result, since that can involve calls into the runtime */
7489 if (mono_threads_is_coop_enabled ()) {
7490 mono_mb_emit_ldloc (mb, coop_gc_var);
7491 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7492 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7495 /* convert the result */
7496 if (!sig->ret->byref) {
7497 MonoMarshalSpec *spec = mspecs [0];
7498 type = sig->ret->type;
7500 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7501 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7505 case MONO_TYPE_VOID:
7507 case MONO_TYPE_VALUETYPE:
7508 klass = sig->ret->data.klass;
7509 if (klass->enumtype) {
7510 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7513 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7527 case MONO_TYPE_FNPTR:
7528 case MONO_TYPE_STRING:
7529 case MONO_TYPE_CLASS:
7530 case MONO_TYPE_OBJECT:
7531 case MONO_TYPE_BOOLEAN:
7532 case MONO_TYPE_ARRAY:
7533 case MONO_TYPE_SZARRAY:
7534 case MONO_TYPE_CHAR:
7536 case MONO_TYPE_GENERICINST:
7537 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7539 case MONO_TYPE_TYPEDBYREF:
7541 g_warning ("return type 0x%02x unknown", sig->ret->type);
7542 g_assert_not_reached ();
7546 mono_mb_emit_stloc (mb, 3);
7550 * Need to call this after converting the result since MONO_VTADDR needs
7551 * to be adjacent to the call instruction.
7553 if (check_exceptions)
7554 emit_thread_interrupt_checkpoint (mb);
7556 /* we need to convert byref arguments back and free string arrays */
7557 for (i = 0; i < sig->param_count; i++) {
7558 MonoType *t = sig->params [i];
7559 MonoMarshalSpec *spec = mspecs [i + 1];
7561 argnum = i + param_shift;
7563 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7564 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7569 case MONO_TYPE_STRING:
7570 case MONO_TYPE_VALUETYPE:
7571 case MONO_TYPE_CLASS:
7572 case MONO_TYPE_OBJECT:
7573 case MONO_TYPE_SZARRAY:
7574 case MONO_TYPE_BOOLEAN:
7575 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7582 if (!MONO_TYPE_IS_VOID(sig->ret))
7583 mono_mb_emit_ldloc (mb, 3);
7585 mono_mb_emit_byte (mb, CEE_RET);
7587 #endif /* DISABLE_JIT */
7590 * mono_marshal_get_native_wrapper:
7591 * @method: The MonoMethod to wrap.
7592 * @check_exceptions: Whenever to check for pending exceptions
7594 * generates IL code for the pinvoke wrapper (the generated method
7595 * calls the unmanaged code in piinfo->addr)
7598 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7600 MonoMethodSignature *sig, *csig;
7601 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7602 MonoMethodBuilder *mb;
7603 MonoMarshalSpec **mspecs;
7606 gboolean pinvoke = FALSE;
7609 const char *exc_class = "MissingMethodException";
7610 const char *exc_arg = NULL;
7613 g_assert (method != NULL);
7614 g_assert (mono_method_signature (method)->pinvoke);
7616 GHashTable **cache_ptr;
7619 if (check_exceptions)
7620 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7622 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7624 if (check_exceptions)
7625 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7627 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7630 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7632 if ((res = mono_marshal_find_in_cache (cache, method)))
7635 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7636 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7640 return mono_cominterop_get_native_wrapper (method);
7642 g_assert_not_reached ();
7646 sig = mono_method_signature (method);
7648 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7649 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7652 if (!piinfo->addr) {
7654 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7655 exc_arg = "Method contains unsupported native code";
7657 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7659 piinfo->addr = mono_lookup_internal_call (method);
7663 /* hack - redirect certain string constructors to CreateString */
7664 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7665 g_assert (!pinvoke);
7666 g_assert (method->string_ctor);
7667 g_assert (sig->hasthis);
7669 /* CreateString returns a value */
7670 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7671 csig->ret = &mono_defaults.string_class->byval_arg;
7675 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7676 if (!strcmp ("CreateString", res->name) &&
7677 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7680 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7681 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7683 /* create a wrapper to preserve .ctor in stack trace */
7684 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7687 mono_mb_emit_byte (mb, CEE_LDARG_0);
7688 for (i = 1; i <= csig->param_count; i++)
7689 mono_mb_emit_ldarg (mb, i);
7690 mono_mb_emit_managed_call (mb, res, NULL);
7691 mono_mb_emit_byte (mb, CEE_RET);
7694 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7695 info->d.string_ctor.method = method;
7697 /* use native_wrapper_cache because internal calls are looked up there */
7698 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7699 csig->param_count + 1, info, NULL);
7706 /* exception will be thrown */
7707 piinfo->addr = NULL;
7708 g_warning ("cannot find CreateString for .ctor");
7711 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7713 mb->method->save_lmf = 1;
7716 * In AOT mode and embedding scenarios, it is possible that the icall is not
7717 * registered in the runtime doing the AOT compilation.
7719 if (!piinfo->addr && !aot) {
7721 mono_mb_emit_exception (mb, exc_class, exc_arg);
7723 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7724 info->d.managed_to_native.method = method;
7726 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7728 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7729 csig->param_count + 16, info, NULL);
7735 /* internal calls: we simply push all arguments and call the method (no conversions) */
7736 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7738 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7740 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7742 /* hack - string constructors returns a value */
7743 if (method->string_ctor)
7744 csig->ret = &mono_defaults.string_class->byval_arg;
7751 * Add a null check since public icalls can be called with 'call' which
7752 * does no such check.
7754 mono_mb_emit_byte (mb, CEE_LDARG_0);
7755 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7756 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7757 mono_mb_patch_branch (mb, pos);
7759 mono_mb_emit_byte (mb, CEE_LDARG_0);
7762 for (i = 0; i < sig->param_count; i++)
7763 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7766 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7767 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7768 mono_mb_emit_calli (mb, csig);
7770 g_assert (piinfo->addr);
7771 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7773 if (check_exceptions)
7774 emit_thread_interrupt_checkpoint (mb);
7775 mono_mb_emit_byte (mb, CEE_RET);
7777 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7778 info->d.managed_to_native.method = method;
7780 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7782 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7791 g_assert (piinfo->addr);
7794 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7795 mono_method_get_marshal_info (method, mspecs);
7797 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7799 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7800 info->d.managed_to_native.method = method;
7802 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7804 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7809 for (i = sig->param_count; i >= 0; i--)
7811 mono_metadata_free_marshal_spec (mspecs [i]);
7815 /* mono_method_print_code (res); */
7821 * mono_marshal_get_native_func_wrapper:
7822 * @image: The image to use for memory allocation and for looking up custom marshallers.
7823 * @sig: The signature of the function
7824 * @func: The native function to wrap
7826 * Returns a wrapper method around native functions, similar to the pinvoke
7830 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7831 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7833 MonoMethodSignature *csig;
7835 SignaturePointerPair key, *new_key;
7836 MonoMethodBuilder *mb;
7845 // Generic types are not safe to place in MonoImage caches.
7846 g_assert (!sig->is_inflated);
7848 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7849 if ((res = mono_marshal_find_in_cache (cache, &key)))
7852 name = g_strdup_printf ("wrapper_native_%p", func);
7853 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7854 mb->method->save_lmf = 1;
7857 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7860 csig = mono_metadata_signature_dup_full (image, sig);
7863 new_key = g_new (SignaturePointerPair,1);
7864 new_key->sig = csig;
7865 new_key->pointer = func;
7867 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7873 mono_marshal_set_wrapper_info (res, NULL);
7879 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7883 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7885 MonoMethodSignature *sig, *csig;
7886 MonoMethodBuilder *mb;
7891 MonoMethodPInvoke mpiinfo;
7892 MonoMethodPInvoke *piinfo = &mpiinfo;
7893 MonoMarshalSpec **mspecs;
7894 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7895 MonoImage *image = invoke->klass->image;
7898 // FIXME: include UnmanagedFunctionPointerAttribute info
7901 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7903 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7905 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7908 memset (&mpiinfo, 0, sizeof (mpiinfo));
7909 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7911 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7912 mono_method_get_marshal_info (invoke, mspecs);
7913 /* Freed below so don't alloc from mempool */
7914 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7917 name = g_strdup_printf ("wrapper_aot_native");
7918 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7919 mb->method->save_lmf = 1;
7922 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7925 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7926 info->d.managed_to_native.method = invoke;
7928 g_assert (!sig->hasthis);
7929 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7931 res = mono_mb_create_and_cache_full (cache, invoke,
7932 mb, csig, csig->param_count + 16,
7936 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7938 mono_metadata_free_marshal_spec (mspecs [i]);
7946 * mono_marshal_emit_managed_wrapper:
7948 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7949 * the delegate which wraps the managed method to be called. For closed delegates,
7950 * it could have fewer parameters than the method it wraps.
7951 * THIS_LOC is the memory location where the target of the delegate is stored.
7954 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7957 MonoMethodSignature *sig, *csig;
7963 /* we first do all conversions */
7964 for (i = 0; i < sig->param_count; i ++) {
7965 MonoType *t = sig->params [i];
7968 case MONO_TYPE_OBJECT:
7969 case MONO_TYPE_CLASS:
7970 case MONO_TYPE_VALUETYPE:
7971 case MONO_TYPE_ARRAY:
7972 case MONO_TYPE_SZARRAY:
7973 case MONO_TYPE_STRING:
7974 case MONO_TYPE_BOOLEAN:
7975 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7979 if (!sig->ret->byref) {
7980 switch (sig->ret->type) {
7981 case MONO_TYPE_STRING:
7982 csig->ret = &mono_defaults.int_class->byval_arg;
7989 MonoMethodSignature *sig, *csig;
7990 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
7991 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
7992 int leave_try_pos, leave_catch_pos, ex_m1_pos;
7993 gboolean closed = FALSE;
7998 /* allocate local 0 (pointer) src_ptr */
7999 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8000 /* allocate local 1 (pointer) dst_ptr */
8001 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8002 /* allocate local 2 (boolean) delete_old */
8003 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8005 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8006 /* Closed delegate */
8007 g_assert (sig->param_count == invoke_sig->param_count + 1);
8009 /* Use a new signature without the first argument */
8010 sig = mono_metadata_signature_dup (sig);
8011 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8012 sig->param_count --;
8015 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8016 /* allocate local 3 to store the return value */
8017 mono_mb_add_local (mb, sig->ret);
8020 if (MONO_TYPE_ISSTRUCT (sig->ret))
8021 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8023 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8024 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8026 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8027 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8032 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8033 * mono_threads_attach_coop ();
8037 * ret = method (...);
8038 * } catch (Exception e) {
8039 * ex = mono_gchandle_new (e, false);
8041 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8042 * mono_threads_detach_coop ();
8045 * mono_marshal_ftnptr_eh_callback (ex);
8051 clauses = g_new0 (MonoExceptionClause, 2);
8053 clause_catch = &clauses [0];
8054 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8055 clause_catch->data.catch_class = mono_defaults.exception_class;
8057 clause_finally = &clauses [1];
8058 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8060 mono_mb_emit_icon (mb, 0);
8061 mono_mb_emit_stloc (mb, 2);
8063 mono_mb_emit_icon (mb, -1);
8064 mono_mb_emit_byte (mb, CEE_CONV_U4);
8065 mono_mb_emit_stloc (mb, ex_local);
8068 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8070 if (!mono_threads_is_coop_enabled ()) {
8071 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8072 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8074 /* mono_threads_attach_coop (); */
8075 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8076 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8077 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8078 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8079 mono_mb_emit_stloc (mb, attach_cookie_local);
8082 /* <interrupt check> */
8083 emit_thread_interrupt_checkpoint (mb);
8085 /* we first do all conversions */
8086 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8087 for (i = 0; i < sig->param_count; i ++) {
8088 MonoType *t = sig->params [i];
8091 case MONO_TYPE_OBJECT:
8092 case MONO_TYPE_CLASS:
8093 case MONO_TYPE_VALUETYPE:
8094 case MONO_TYPE_ARRAY:
8095 case MONO_TYPE_SZARRAY:
8096 case MONO_TYPE_STRING:
8097 case MONO_TYPE_BOOLEAN:
8098 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8108 if (target_handle) {
8109 mono_mb_emit_icon (mb, (gint32)target_handle);
8110 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8113 g_assert_not_reached ();
8115 } else if (closed) {
8116 mono_mb_emit_icon (mb, (gint32)target_handle);
8117 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8120 for (i = 0; i < sig->param_count; i++) {
8121 MonoType *t = sig->params [i];
8123 if (tmp_locals [i]) {
8125 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8127 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8130 mono_mb_emit_ldarg (mb, i);
8133 /* ret = method (...) */
8134 mono_mb_emit_managed_call (mb, method, NULL);
8136 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8137 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8138 mono_class_init (klass);
8139 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8140 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8141 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8142 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8143 mono_mb_emit_stloc (mb, m->vtaddr_var);
8147 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8148 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8149 } else if (!sig->ret->byref) {
8150 switch (sig->ret->type) {
8151 case MONO_TYPE_VOID:
8153 case MONO_TYPE_BOOLEAN:
8156 case MONO_TYPE_CHAR:
8168 case MONO_TYPE_OBJECT:
8169 mono_mb_emit_stloc (mb, 3);
8171 case MONO_TYPE_STRING:
8172 csig->ret = &mono_defaults.int_class->byval_arg;
8173 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8175 case MONO_TYPE_VALUETYPE:
8176 case MONO_TYPE_CLASS:
8177 case MONO_TYPE_SZARRAY:
8178 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8181 g_warning ("return type 0x%02x unknown", sig->ret->type);
8182 g_assert_not_reached ();
8185 mono_mb_emit_stloc (mb, 3);
8188 /* Convert byref arguments back */
8189 for (i = 0; i < sig->param_count; i ++) {
8190 MonoType *t = sig->params [i];
8191 MonoMarshalSpec *spec = mspecs [i + 1];
8193 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8194 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8196 else if (t->byref) {
8198 case MONO_TYPE_CLASS:
8199 case MONO_TYPE_VALUETYPE:
8200 case MONO_TYPE_OBJECT:
8201 case MONO_TYPE_STRING:
8202 case MONO_TYPE_BOOLEAN:
8203 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8209 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8210 /* The [Out] information is encoded in the delegate signature */
8212 case MONO_TYPE_SZARRAY:
8213 case MONO_TYPE_CLASS:
8214 case MONO_TYPE_VALUETYPE:
8215 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8218 g_assert_not_reached ();
8223 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8227 /* catch (Exception e) { */
8228 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8229 clause_catch->handler_offset = mono_mb_get_label (mb);
8231 mono_mb_emit_stloc (mb, e_local);
8233 /* ex = mono_gchandle_new (e, false); */
8234 mono_mb_emit_ldloc (mb, e_local);
8235 mono_mb_emit_icon (mb, 0);
8236 mono_mb_emit_icall (mb, mono_gchandle_new);
8237 mono_mb_emit_stloc (mb, ex_local);
8239 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8242 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8245 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8246 clause_finally->handler_offset = mono_mb_get_label (mb);
8248 if (!mono_threads_is_coop_enabled ()) {
8249 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8250 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8252 /* mono_threads_detach_coop (); */
8253 mono_mb_emit_ldloc (mb, attach_cookie_local);
8254 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8255 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8259 mono_mb_emit_ldloc (mb, ex_local);
8260 mono_mb_emit_icon (mb, -1);
8261 mono_mb_emit_byte (mb, CEE_CONV_U4);
8262 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8264 /* mono_marshal_ftnptr_eh_callback (ex) */
8265 mono_mb_emit_ldloc (mb, ex_local);
8266 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8269 mono_mb_patch_branch (mb, ex_m1_pos);
8271 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8273 /* } [endfinally] */
8274 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8276 mono_mb_patch_branch (mb, leave_try_pos);
8277 mono_mb_patch_branch (mb, leave_catch_pos);
8280 if (m->retobj_var) {
8281 mono_mb_emit_ldloc (mb, m->retobj_var);
8282 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8283 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8286 if (!MONO_TYPE_IS_VOID(sig->ret))
8287 mono_mb_emit_ldloc (mb, 3);
8288 mono_mb_emit_byte (mb, CEE_RET);
8291 mono_mb_set_clauses (mb, 2, clauses);
8299 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8301 MonoMethodSignature *sig;
8306 * Under windows, delegates passed to native code must use the STDCALL
8307 * calling convention.
8309 csig->call_convention = MONO_CALL_STDCALL;
8312 sig = mono_method_signature (method);
8314 /* Change default calling convention if needed */
8315 /* Why is this a modopt ? */
8316 if (sig->ret && sig->ret->num_mods) {
8317 for (i = 0; i < sig->ret->num_mods; ++i) {
8319 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8320 g_assert (mono_error_ok (&error));
8321 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8322 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8323 csig->call_convention = MONO_CALL_C;
8324 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8325 csig->call_convention = MONO_CALL_STDCALL;
8326 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8327 csig->call_convention = MONO_CALL_FASTCALL;
8328 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8329 csig->call_convention = MONO_CALL_THISCALL;
8336 * generates IL code to call managed methods from unmanaged code
8337 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8340 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8343 MonoMethodSignature *sig, *csig, *invoke_sig;
8344 MonoMethodBuilder *mb;
8345 MonoMethod *res, *invoke;
8346 MonoMarshalSpec **mspecs;
8347 MonoMethodPInvoke piinfo;
8350 EmitMarshalContext m;
8352 g_assert (method != NULL);
8353 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8356 * FIXME: Should cache the method+delegate type pair, since the same method
8357 * could be called with different delegates, thus different marshalling
8360 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8362 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8365 invoke = mono_get_delegate_invoke (delegate_klass);
8366 invoke_sig = mono_method_signature (invoke);
8368 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8369 mono_method_get_marshal_info (invoke, mspecs);
8371 sig = mono_method_signature (method);
8373 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8375 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8376 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8378 /* we copy the signature, so that we can modify it */
8380 /* Need to free this later */
8381 csig = mono_metadata_signature_dup (invoke_sig);
8383 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8387 memset (&m, 0, sizeof (m));
8393 m.image = method->klass->image;
8395 mono_marshal_set_callconv_from_modopt (invoke, csig);
8397 /* The attribute is only available in Net 2.0 */
8398 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8399 MonoCustomAttrInfo *cinfo;
8400 MonoCustomAttrEntry *attr;
8403 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8404 * contents of the attribute without constructing it, as that might not be
8405 * possible when running in cross-compiling mode.
8407 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8408 mono_error_assert_ok (&error);
8411 for (i = 0; i < cinfo->num_attrs; ++i) {
8412 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8413 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8414 attr = &cinfo->attrs [i];
8420 MonoArray *typed_args, *named_args;
8421 CattrNamedArg *arginfo;
8425 MonoBoolean set_last_error = 0;
8428 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8429 g_assert (mono_error_ok (&error));
8430 g_assert (mono_array_length (typed_args) == 1);
8433 o = mono_array_get (typed_args, MonoObject*, 0);
8434 call_conv = *(gint32*)mono_object_unbox (o);
8437 for (i = 0; i < mono_array_length (named_args); ++i) {
8438 CattrNamedArg *narg = &arginfo [i];
8440 o = mono_array_get (named_args, MonoObject*, i);
8442 g_assert (narg->field);
8443 if (!strcmp (narg->field->name, "CharSet")) {
8444 charset = *(gint32*)mono_object_unbox (o);
8445 } else if (!strcmp (narg->field->name, "SetLastError")) {
8446 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8447 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8448 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8449 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8450 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8452 g_assert_not_reached ();
8458 memset (&piinfo, 0, sizeof (piinfo));
8460 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8462 csig->call_convention = call_conv - 1;
8465 if (cinfo && !cinfo->cached)
8466 mono_custom_attrs_free (cinfo);
8469 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8471 if (!target_handle) {
8474 // FIXME: Associate it with the method+delegate_klass pair
8475 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8476 info->d.native_to_managed.method = method;
8477 info->d.native_to_managed.klass = delegate_klass;
8479 res = mono_mb_create_and_cache_full (cache, method,
8480 mb, csig, sig->param_count + 16,
8486 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8490 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8492 mono_metadata_free_marshal_spec (mspecs [i]);
8495 /* mono_method_print_code (res); */
8501 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8505 MonoMethodSignature *sig;
8506 MonoMethodBuilder *mb;
8511 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8513 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8516 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8517 MonoMethodSignature *csig;
8518 MonoMarshalSpec **mspecs;
8519 EmitMarshalContext m;
8521 sig = mono_method_signature (method);
8522 g_assert (!sig->hasthis);
8524 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8525 mono_method_get_marshal_info (method, mspecs);
8527 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8528 csig = mono_metadata_signature_dup_full (image, sig);
8532 memset (&m, 0, sizeof (m));
8540 mono_marshal_set_callconv_from_modopt (method, csig);
8542 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8544 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8549 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8552 for (i = sig->param_count; i >= 0; i--)
8554 mono_metadata_free_marshal_spec (mspecs [i]);
8557 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8558 mono_error_assert_ok (&error);
8559 return compiled_ptr;
8562 sig = mono_method_signature (method);
8563 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8565 param_count = sig->param_count + sig->hasthis;
8567 for (i = 0; i < param_count; i++)
8568 mono_mb_emit_ldarg (mb, i);
8570 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8571 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8573 mono_mb_emit_op (mb, CEE_CALL, method);
8574 mono_mb_emit_byte (mb, CEE_RET);
8579 method = mono_mb_create (mb, sig, param_count, NULL);
8582 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8583 mono_error_assert_ok (&error);
8584 return compiled_ptr;
8590 * The code directly following this is the cache hit, value positive branch
8592 * This function takes a new method builder with 0 locals and adds two locals
8593 * to create multiple out-branches and the fall through state of having the object
8594 * on the stack after a cache miss
8597 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8598 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8599 MonoMethodBuilder *mb)
8603 /* allocate local 0 (pointer) obj_vtable */
8604 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8605 /* allocate local 1 (pointer) cached_vtable */
8606 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8609 mono_mb_emit_ldarg (mb, obj_arg_position);
8610 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8612 /*obj_vtable = obj->vtable;*/
8613 mono_mb_emit_ldarg (mb, obj_arg_position);
8614 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8615 mono_mb_emit_byte (mb, CEE_LDIND_I);
8616 mono_mb_emit_stloc (mb, 0);
8618 /* cached_vtable = *cache*/
8619 mono_mb_emit_ldarg (mb, cache_arg_position);
8620 mono_mb_emit_byte (mb, CEE_LDIND_I);
8621 mono_mb_emit_stloc (mb, 1);
8623 mono_mb_emit_ldloc (mb, 1);
8624 mono_mb_emit_byte (mb, CEE_LDC_I4);
8625 mono_mb_emit_i4 (mb, ~0x1);
8626 mono_mb_emit_byte (mb, CEE_CONV_I);
8627 mono_mb_emit_byte (mb, CEE_AND);
8628 mono_mb_emit_ldloc (mb, 0);
8629 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8630 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8632 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8633 mono_mb_emit_ldloc (mb, 1);
8634 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8635 mono_mb_emit_byte (mb, CEE_CONV_U);
8636 mono_mb_emit_byte (mb, CEE_AND);
8637 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8638 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8641 mono_mb_patch_branch (mb, cache_miss_pos);
8644 mono_mb_emit_ldarg (mb, obj_arg_position);
8645 mono_mb_emit_ldarg (mb, class_arg_position);
8646 mono_mb_emit_ldarg (mb, cache_arg_position);
8647 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8650 #endif /* DISABLE_JIT */
8653 * This does the equivalent of mono_object_castclass_with_cache.
8656 mono_marshal_get_castclass_with_cache (void)
8658 static MonoMethod *cached;
8660 MonoMethodBuilder *mb;
8661 MonoMethodSignature *sig;
8662 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8665 const int obj_arg_position = 0;
8666 const int class_arg_position = 1;
8667 const int cache_arg_position = 2;
8672 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8673 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8674 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8675 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8676 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8677 sig->ret = &mono_defaults.object_class->byval_arg;
8681 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8682 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8683 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8686 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8687 mono_mb_emit_ldarg (mb, obj_arg_position);
8688 mono_mb_emit_byte (mb, CEE_RET);
8691 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8692 mono_mb_patch_branch (mb, invalid_cast_pos);
8693 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8696 mono_mb_patch_branch (mb, return_null_pos);
8697 mono_mb_emit_byte (mb, CEE_LDNULL);
8698 mono_mb_emit_byte (mb, CEE_RET);
8699 #endif /* DISABLE_JIT */
8701 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8702 res = mono_mb_create (mb, sig, 8, info);
8705 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8706 mono_free_method (res);
8707 mono_metadata_free_method_signature (sig);
8714 /* this is an icall */
8716 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8719 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8720 if (mono_error_set_pending_exception (&error))
8723 #ifndef DISABLE_REMOTING
8724 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8728 uintptr_t cache_update = (uintptr_t)obj->vtable;
8730 cache_update = cache_update | 0x1;
8732 *cache = cache_update;
8738 * This does the equivalent of mono_object_isinst_with_cache.
8741 mono_marshal_get_isinst_with_cache (void)
8743 static MonoMethod *cached;
8745 MonoMethodBuilder *mb;
8746 MonoMethodSignature *sig;
8747 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8750 const int obj_arg_position = 0;
8751 const int class_arg_position = 1;
8752 const int cache_arg_position = 2;
8757 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8758 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8760 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8762 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8764 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8765 sig->ret = &mono_defaults.object_class->byval_arg;
8769 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8770 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8771 // Return the object gotten via the slow path.
8772 mono_mb_emit_byte (mb, CEE_RET);
8775 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8776 mono_mb_patch_branch (mb, return_null_pos);
8777 mono_mb_emit_byte (mb, CEE_LDNULL);
8778 mono_mb_emit_byte (mb, CEE_RET);
8781 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8782 mono_mb_emit_ldarg (mb, obj_arg_position);
8783 mono_mb_emit_byte (mb, CEE_RET);
8786 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8787 res = mono_mb_create (mb, sig, 8, info);
8790 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8791 mono_free_method (res);
8792 mono_metadata_free_method_signature (sig);
8800 * mono_marshal_get_isinst:
8801 * @klass: the type of the field
8803 * This method generates a function which can be used to check if an object is
8804 * an instance of the given type, icluding the case where the object is a proxy.
8805 * The generated function has the following signature:
8806 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8809 mono_marshal_get_isinst (MonoClass *klass)
8811 static MonoMethodSignature *isint_sig = NULL;
8815 int pos_was_ok, pos_end;
8816 #ifndef DISABLE_REMOTING
8817 int pos_end2, pos_failed;
8820 MonoMethodBuilder *mb;
8822 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8823 if ((res = mono_marshal_find_in_cache (cache, klass)))
8827 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8828 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8829 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8830 isint_sig->pinvoke = 0;
8833 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8834 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8837 mb->method->save_lmf = 1;
8840 /* check if the object is a proxy that needs special cast */
8841 mono_mb_emit_ldarg (mb, 0);
8842 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8843 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8845 /* The result of MONO_CISINST can be:
8846 0) the type check succeeded
8847 1) the type check did not succeed
8848 2) a CanCastTo call is needed */
8849 #ifndef DISABLE_REMOTING
8850 mono_mb_emit_byte (mb, CEE_DUP);
8851 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8853 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8854 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8856 /* get the real proxy from the transparent proxy*/
8858 mono_mb_emit_ldarg (mb, 0);
8859 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8860 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8864 mono_mb_patch_branch (mb, pos_failed);
8865 mono_mb_emit_byte (mb, CEE_LDNULL);
8866 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8870 mono_mb_patch_branch (mb, pos_was_ok);
8871 mono_mb_emit_byte (mb, CEE_POP);
8872 mono_mb_emit_ldarg (mb, 0);
8876 mono_mb_patch_branch (mb, pos_end);
8877 mono_mb_patch_branch (mb, pos_end2);
8878 mono_mb_emit_byte (mb, CEE_RET);
8880 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8884 mono_mb_emit_byte (mb, CEE_LDNULL);
8885 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8889 mono_mb_patch_branch (mb, pos_was_ok);
8890 mono_mb_emit_ldarg (mb, 0);
8894 mono_mb_patch_branch (mb, pos_end);
8895 mono_mb_emit_byte (mb, CEE_RET);
8896 #endif /* DISABLE_REMOTING */
8897 #endif /* DISABLE_JIT */
8899 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8900 info->d.proxy.klass = klass;
8901 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8908 * mono_marshal_get_castclass:
8909 * @klass: the type of the field
8911 * This method generates a function which can be used to cast an object to
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* __castclass_wrapper_ (MonoObject *obj)
8917 mono_marshal_get_castclass (MonoClass *klass)
8919 static MonoMethodSignature *castclass_sig = NULL;
8922 #ifndef DISABLE_REMOTING
8923 int pos_was_ok, pos_was_ok2;
8926 MonoMethodBuilder *mb;
8929 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8930 if ((res = mono_marshal_find_in_cache (cache, klass)))
8933 if (!castclass_sig) {
8934 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8935 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8936 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8937 castclass_sig->pinvoke = 0;
8940 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8941 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8944 mb->method->save_lmf = 1;
8947 /* check if the object is a proxy that needs special cast */
8948 mono_mb_emit_ldarg (mb, 0);
8949 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8950 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8952 /* The result of MONO_CCASTCLASS can be:
8953 0) the cast is valid
8954 1) cast of unknown proxy type
8955 or an exception if the cast is is invalid
8957 #ifndef DISABLE_REMOTING
8958 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8960 /* get the real proxy from the transparent proxy*/
8962 mono_mb_emit_ldarg (mb, 0);
8963 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8964 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8967 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8970 mono_mb_patch_branch (mb, pos_was_ok);
8971 mono_mb_patch_branch (mb, pos_was_ok2);
8973 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8974 mono_mb_emit_byte (mb, CEE_POP);
8975 #endif /* DISABLE_REMOTING */
8977 mono_mb_emit_ldarg (mb, 0);
8980 mono_mb_emit_byte (mb, CEE_RET);
8981 #endif /* DISABLE_JIT */
8983 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8985 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8993 * mono_marshal_get_struct_to_ptr:
8996 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8999 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9001 MonoMethodBuilder *mb;
9002 static MonoMethod *stoptr = NULL;
9006 g_assert (klass != NULL);
9008 mono_marshal_load_type_info (klass);
9010 if (klass->marshal_info->str_to_ptr)
9011 return klass->marshal_info->str_to_ptr;
9014 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9017 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9020 if (klass->blittable) {
9021 mono_mb_emit_byte (mb, CEE_LDARG_1);
9022 mono_mb_emit_byte (mb, CEE_LDARG_0);
9023 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9024 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9025 mono_mb_emit_byte (mb, CEE_PREFIX1);
9026 mono_mb_emit_byte (mb, CEE_CPBLK);
9029 /* allocate local 0 (pointer) src_ptr */
9030 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9031 /* allocate local 1 (pointer) dst_ptr */
9032 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9033 /* allocate local 2 (boolean) delete_old */
9034 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9035 mono_mb_emit_byte (mb, CEE_LDARG_2);
9036 mono_mb_emit_stloc (mb, 2);
9038 /* initialize src_ptr to point to the start of object data */
9039 mono_mb_emit_byte (mb, CEE_LDARG_0);
9040 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9041 mono_mb_emit_stloc (mb, 0);
9043 /* initialize dst_ptr */
9044 mono_mb_emit_byte (mb, CEE_LDARG_1);
9045 mono_mb_emit_stloc (mb, 1);
9047 emit_struct_conv (mb, klass, FALSE);
9050 mono_mb_emit_byte (mb, CEE_RET);
9052 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9053 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9056 mono_marshal_lock ();
9057 if (!klass->marshal_info->str_to_ptr)
9058 klass->marshal_info->str_to_ptr = res;
9060 res = klass->marshal_info->str_to_ptr;
9061 mono_marshal_unlock ();
9066 * mono_marshal_get_ptr_to_struct:
9069 * generates IL code for PtrToStructure (IntPtr src, object structure)
9072 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9074 MonoMethodBuilder *mb;
9075 static MonoMethodSignature *ptostr = NULL;
9079 g_assert (klass != NULL);
9081 mono_marshal_load_type_info (klass);
9083 if (klass->marshal_info->ptr_to_str)
9084 return klass->marshal_info->ptr_to_str;
9087 MonoMethodSignature *sig;
9089 /* Create the signature corresponding to
9090 static void PtrToStructure (IntPtr ptr, object structure);
9091 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9092 sig = mono_create_icall_signature ("void ptr object");
9093 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9095 mono_memory_barrier ();
9099 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9102 if (klass->blittable) {
9103 mono_mb_emit_byte (mb, CEE_LDARG_1);
9104 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9105 mono_mb_emit_byte (mb, CEE_LDARG_0);
9106 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9107 mono_mb_emit_byte (mb, CEE_PREFIX1);
9108 mono_mb_emit_byte (mb, CEE_CPBLK);
9111 /* allocate local 0 (pointer) src_ptr */
9112 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9113 /* allocate local 1 (pointer) dst_ptr */
9114 mono_mb_add_local (mb, &klass->this_arg);
9116 /* initialize src_ptr to point to the start of object data */
9117 mono_mb_emit_byte (mb, CEE_LDARG_0);
9118 mono_mb_emit_stloc (mb, 0);
9120 /* initialize dst_ptr */
9121 mono_mb_emit_byte (mb, CEE_LDARG_1);
9122 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9123 mono_mb_emit_stloc (mb, 1);
9125 emit_struct_conv (mb, klass, TRUE);
9128 mono_mb_emit_byte (mb, CEE_RET);
9130 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9131 res = mono_mb_create (mb, ptostr, 0, info);
9134 mono_marshal_lock ();
9135 if (!klass->marshal_info->ptr_to_str)
9136 klass->marshal_info->ptr_to_str = res;
9138 res = klass->marshal_info->ptr_to_str;
9139 mono_marshal_unlock ();
9144 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9145 * This is used to avoid infinite recursion since it is hard to determine where to
9146 * replace a method with its synchronized wrapper, and where not.
9147 * The runtime should execute METHOD instead of the wrapper.
9150 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9152 MonoMethodBuilder *mb;
9154 MonoMethodSignature *sig;
9156 MonoGenericContext *ctx = NULL;
9157 MonoGenericContainer *container = NULL;
9159 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9160 ctx = &((MonoMethodInflated*)method)->context;
9161 method = ((MonoMethodInflated*)method)->declaring;
9162 container = mono_method_get_generic_container (method);
9164 container = method->klass->generic_container;
9165 g_assert (container);
9168 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9170 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9171 mono_mb_emit_byte (mb, CEE_RET);
9173 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9175 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9176 info->d.synchronized_inner.method = method;
9177 res = mono_mb_create (mb, sig, 0, info);
9181 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9182 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9188 * generates IL code for the synchronized wrapper: the generated method
9189 * calls METHOD while locking 'this' or the parent type.
9192 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9194 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9195 MonoMethodSignature *sig;
9196 MonoExceptionClause *clause;
9197 MonoMethodBuilder *mb;
9201 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9202 MonoGenericContext *ctx = NULL;
9203 MonoMethod *orig_method = NULL;
9204 MonoGenericContainer *container = NULL;
9208 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9211 /* FIXME: Support generic methods too */
9212 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9213 orig_method = method;
9214 ctx = &((MonoMethodInflated*)method)->context;
9215 method = ((MonoMethodInflated*)method)->declaring;
9216 container = mono_method_get_generic_container (method);
9218 container = method->klass->generic_container;
9219 g_assert (container);
9226 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9227 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9231 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9232 if ((res = mono_marshal_find_in_cache (cache, method)))
9236 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9239 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9241 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9242 info->d.synchronized.method = method;
9245 mb->skip_visibility = 1;
9247 if (!MONO_TYPE_IS_VOID (sig->ret))
9248 ret_local = mono_mb_add_local (mb, sig->ret);
9251 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9252 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9254 /* This will throw the type load exception when the wrapper is compiled */
9255 mono_mb_emit_byte (mb, CEE_LDNULL);
9256 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9257 mono_mb_emit_byte (mb, CEE_POP);
9259 if (!MONO_TYPE_IS_VOID (sig->ret))
9260 mono_mb_emit_ldloc (mb, ret_local);
9261 mono_mb_emit_byte (mb, CEE_RET);
9264 res = mono_mb_create_and_cache_full (cache, method,
9265 mb, sig, sig->param_count + 16, info, NULL);
9273 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9274 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9276 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9277 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9280 mono_marshal_lock ();
9282 if (!enter_method) {
9283 MonoMethodDesc *desc;
9285 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9286 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9287 g_assert (enter_method);
9288 mono_method_desc_free (desc);
9290 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9291 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9292 g_assert (exit_method);
9293 mono_method_desc_free (desc);
9295 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9296 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9297 g_assert (gettypefromhandle_method);
9298 mono_method_desc_free (desc);
9301 mono_marshal_unlock ();
9304 /* Push this or the type object */
9305 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9306 /* We have special handling for this in the JIT */
9307 int index = mono_mb_add_data (mb, method->klass);
9308 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9309 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9310 mono_mb_emit_i4 (mb, index);
9312 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9315 mono_mb_emit_ldarg (mb, 0);
9316 mono_mb_emit_stloc (mb, this_local);
9318 /* Call Monitor::Enter() */
9319 mono_mb_emit_ldloc (mb, this_local);
9320 mono_mb_emit_ldloc_addr (mb, taken_local);
9321 mono_mb_emit_managed_call (mb, enter_method, NULL);
9323 clause->try_offset = mono_mb_get_label (mb);
9325 /* Call the method */
9327 mono_mb_emit_ldarg (mb, 0);
9328 for (i = 0; i < sig->param_count; i++)
9329 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9333 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9334 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9336 mono_mb_emit_managed_call (mb, method, NULL);
9339 if (!MONO_TYPE_IS_VOID (sig->ret))
9340 mono_mb_emit_stloc (mb, ret_local);
9342 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9344 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9345 clause->handler_offset = mono_mb_get_label (mb);
9347 /* Call Monitor::Exit() if needed */
9348 mono_mb_emit_ldloc (mb, taken_local);
9349 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9350 mono_mb_emit_ldloc (mb, this_local);
9351 mono_mb_emit_managed_call (mb, exit_method, NULL);
9352 mono_mb_patch_branch (mb, pos2);
9353 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9355 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9357 mono_mb_patch_branch (mb, pos);
9358 if (!MONO_TYPE_IS_VOID (sig->ret))
9359 mono_mb_emit_ldloc (mb, ret_local);
9360 mono_mb_emit_byte (mb, CEE_RET);
9362 mono_mb_set_clauses (mb, 1, clause);
9367 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9368 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9370 res = mono_mb_create_and_cache_full (cache, method,
9371 mb, sig, sig->param_count + 16, info, NULL);
9380 * the returned method calls 'method' unboxing the this argument
9383 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9385 MonoMethodSignature *sig = mono_method_signature (method);
9387 MonoMethodBuilder *mb;
9392 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9394 if ((res = mono_marshal_find_in_cache (cache, method)))
9397 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9399 g_assert (sig->hasthis);
9402 mono_mb_emit_ldarg (mb, 0);
9403 mono_mb_emit_icon (mb, sizeof (MonoObject));
9404 mono_mb_emit_byte (mb, CEE_ADD);
9405 for (i = 0; i < sig->param_count; ++i)
9406 mono_mb_emit_ldarg (mb, i + 1);
9407 mono_mb_emit_managed_call (mb, method, NULL);
9408 mono_mb_emit_byte (mb, CEE_RET);
9411 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9412 info->d.unbox.method = method;
9414 res = mono_mb_create_and_cache_full (cache, method,
9415 mb, sig, sig->param_count + 16, info, NULL);
9418 /* mono_method_print_code (res); */
9424 STELEMREF_OBJECT, /*no check at all*/
9425 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9426 STELEMREF_CLASS, /*only the klass->parents check*/
9427 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9428 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9429 STELEMREF_KIND_COUNT
9432 static const char *strelemref_wrapper_name[] = {
9433 "object", "sealed_class", "class", "interface", "complex"
9437 is_monomorphic_array (MonoClass *klass)
9439 MonoClass *element_class;
9440 if (klass->rank != 1)
9443 element_class = klass->element_class;
9444 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9448 get_virtual_stelemref_kind (MonoClass *element_class)
9450 if (element_class == mono_defaults.object_class)
9451 return STELEMREF_OBJECT;
9452 if (is_monomorphic_array (element_class))
9453 return STELEMREF_SEALED_CLASS;
9454 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9455 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9456 #ifdef COMPRESSED_INTERFACE_BITMAP
9457 return STELEMREF_COMPLEX;
9459 return STELEMREF_INTERFACE;
9461 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9462 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9463 return STELEMREF_COMPLEX;
9464 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9465 return STELEMREF_SEALED_CLASS;
9466 return STELEMREF_CLASS;
9472 load_array_element_address (MonoMethodBuilder *mb)
9474 mono_mb_emit_ldarg (mb, 0);
9475 mono_mb_emit_ldarg (mb, 1);
9476 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9480 load_array_class (MonoMethodBuilder *mb, int aklass)
9482 mono_mb_emit_ldarg (mb, 0);
9483 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9484 mono_mb_emit_byte (mb, CEE_LDIND_I);
9485 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9486 mono_mb_emit_byte (mb, CEE_LDIND_I);
9487 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9488 mono_mb_emit_byte (mb, CEE_LDIND_I);
9489 mono_mb_emit_stloc (mb, aklass);
9493 load_value_class (MonoMethodBuilder *mb, int vklass)
9495 mono_mb_emit_ldarg (mb, 2);
9496 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9497 mono_mb_emit_byte (mb, CEE_LDIND_I);
9498 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9499 mono_mb_emit_byte (mb, CEE_LDIND_I);
9500 mono_mb_emit_stloc (mb, vklass);
9506 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9508 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9509 printf ("slow vstore of %s\n", name);
9516 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9517 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9518 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9519 * - Add a case for arrays of arrays.
9522 get_virtual_stelemref_wrapper (int kind)
9524 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9525 static MonoMethodSignature *signature;
9526 MonoMethodBuilder *mb;
9529 const char *param_names [16];
9531 int aklass, vklass, vtable, uiid;
9532 int array_slot_addr;
9535 if (cached_methods [kind])
9536 return cached_methods [kind];
9538 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9539 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9543 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9545 /* void this::stelemref (size_t idx, void* value) */
9546 sig->ret = &mono_defaults.void_class->byval_arg;
9547 sig->hasthis = TRUE;
9548 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9549 sig->params [1] = &mono_defaults.object_class->byval_arg;
9554 param_names [0] = "index";
9555 param_names [1] = "value";
9556 mono_mb_set_param_names (mb, param_names);
9558 /*For now simply call plain old stelemref*/
9560 case STELEMREF_OBJECT:
9561 /* ldelema (implicit bound check) */
9562 load_array_element_address (mb);
9564 mono_mb_emit_ldarg (mb, 2);
9565 mono_mb_emit_byte (mb, CEE_STIND_REF);
9566 mono_mb_emit_byte (mb, CEE_RET);
9569 case STELEMREF_COMPLEX:
9571 <ldelema (bound check)>
9574 if (!mono_object_isinst (value, aklass))
9578 *array_slot_addr = value;
9581 throw new ArrayTypeMismatchException ();
9584 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9585 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9589 /*Use this to debug/record stores that are going thru the slow path*/
9590 MonoMethodSignature *csig;
9591 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9592 csig->ret = &mono_defaults.void_class->byval_arg;
9593 csig->params [0] = &mono_defaults.object_class->byval_arg;
9594 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9595 csig->params [2] = &mono_defaults.object_class->byval_arg;
9596 mono_mb_emit_ldarg (mb, 0);
9597 mono_mb_emit_ldarg (mb, 1);
9598 mono_mb_emit_ldarg (mb, 2);
9599 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9603 /* ldelema (implicit bound check) */
9604 load_array_element_address (mb);
9605 mono_mb_emit_stloc (mb, array_slot_addr);
9607 /* if (!value) goto do_store */
9608 mono_mb_emit_ldarg (mb, 2);
9609 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9611 /* aklass = array->vtable->klass->element_class */
9612 load_array_class (mb, aklass);
9614 /*if (mono_object_isinst (value, aklass)) */
9615 mono_mb_emit_ldarg (mb, 2);
9616 mono_mb_emit_ldloc (mb, aklass);
9617 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9618 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9621 mono_mb_patch_branch (mb, b1);
9622 mono_mb_emit_ldloc (mb, array_slot_addr);
9623 mono_mb_emit_ldarg (mb, 2);
9624 mono_mb_emit_byte (mb, CEE_STIND_REF);
9625 mono_mb_emit_byte (mb, CEE_RET);
9628 mono_mb_patch_branch (mb, b2);
9630 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9633 case STELEMREF_SEALED_CLASS:
9635 <ldelema (bound check)>
9639 aklass = array->vtable->klass->element_class;
9640 vklass = value->vtable->klass;
9642 if (vklass != aklass)
9646 *array_slot_addr = value;
9649 throw new ArrayTypeMismatchException ();
9651 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9652 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9653 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9656 /* ldelema (implicit bound check) */
9657 load_array_element_address (mb);
9658 mono_mb_emit_stloc (mb, array_slot_addr);
9660 /* if (!value) goto do_store */
9661 mono_mb_emit_ldarg (mb, 2);
9662 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9664 /* aklass = array->vtable->klass->element_class */
9665 load_array_class (mb, aklass);
9667 /* vklass = value->vtable->klass */
9668 load_value_class (mb, vklass);
9670 /*if (vklass != aklass) goto do_exception; */
9671 mono_mb_emit_ldloc (mb, aklass);
9672 mono_mb_emit_ldloc (mb, vklass);
9673 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9676 mono_mb_patch_branch (mb, b1);
9677 mono_mb_emit_ldloc (mb, array_slot_addr);
9678 mono_mb_emit_ldarg (mb, 2);
9679 mono_mb_emit_byte (mb, CEE_STIND_REF);
9680 mono_mb_emit_byte (mb, CEE_RET);
9683 mono_mb_patch_branch (mb, b2);
9684 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9687 case STELEMREF_CLASS:
9690 <ldelema (bound check)>
9694 aklass = array->vtable->klass->element_class;
9695 vklass = value->vtable->klass;
9697 if (vklass->idepth < aklass->idepth)
9700 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9704 *array_slot_addr = value;
9708 throw new ArrayTypeMismatchException ();
9710 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9711 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9712 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9714 /* ldelema (implicit bound check) */
9715 load_array_element_address (mb);
9716 mono_mb_emit_stloc (mb, array_slot_addr);
9718 /* if (!value) goto do_store */
9719 mono_mb_emit_ldarg (mb, 2);
9720 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9722 /* aklass = array->vtable->klass->element_class */
9723 load_array_class (mb, aklass);
9725 /* vklass = value->vtable->klass */
9726 load_value_class (mb, vklass);
9728 /*if (mono_object_isinst (value, aklass)) */
9729 mono_mb_emit_ldarg (mb, 2);
9730 mono_mb_emit_ldloc (mb, aklass);
9731 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9732 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9734 /* if (vklass->idepth < aklass->idepth) goto failue */
9735 mono_mb_emit_ldloc (mb, vklass);
9736 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9737 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9739 mono_mb_emit_ldloc (mb, aklass);
9740 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9741 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9743 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9745 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9746 mono_mb_emit_ldloc (mb, vklass);
9747 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9748 mono_mb_emit_byte (mb, CEE_LDIND_I);
9750 mono_mb_emit_ldloc (mb, aklass);
9751 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9752 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9753 mono_mb_emit_icon (mb, 1);
9754 mono_mb_emit_byte (mb, CEE_SUB);
9755 mono_mb_emit_icon (mb, sizeof (void*));
9756 mono_mb_emit_byte (mb, CEE_MUL);
9757 mono_mb_emit_byte (mb, CEE_ADD);
9758 mono_mb_emit_byte (mb, CEE_LDIND_I);
9760 mono_mb_emit_ldloc (mb, aklass);
9761 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9764 mono_mb_patch_branch (mb, b1);
9765 mono_mb_emit_ldloc (mb, array_slot_addr);
9766 mono_mb_emit_ldarg (mb, 2);
9767 mono_mb_emit_byte (mb, CEE_STIND_REF);
9768 mono_mb_emit_byte (mb, CEE_RET);
9771 mono_mb_patch_branch (mb, b2);
9772 mono_mb_patch_branch (mb, b3);
9774 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9777 case STELEMREF_INTERFACE:
9784 klass = array->obj.vtable->klass->element_class;
9786 uiid = klass->interface_id;
9787 if (uiid > vt->max_interface_id)
9789 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9792 mono_array_setref (array, index, value);
9795 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9797 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9798 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9799 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9800 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9802 /* ldelema (implicit bound check) */
9803 load_array_element_address (mb);
9804 mono_mb_emit_stloc (mb, array_slot_addr);
9806 /* if (!value) goto do_store */
9807 mono_mb_emit_ldarg (mb, 2);
9808 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9810 /* klass = array->vtable->klass->element_class */
9811 load_array_class (mb, aklass);
9813 /* vt = value->vtable */
9814 mono_mb_emit_ldarg (mb, 2);
9815 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9816 mono_mb_emit_byte (mb, CEE_LDIND_I);
9817 mono_mb_emit_stloc (mb, vtable);
9819 /* uiid = klass->interface_id; */
9820 mono_mb_emit_ldloc (mb, aklass);
9821 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9822 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9823 mono_mb_emit_stloc (mb, uiid);
9825 /*if (uiid > vt->max_interface_id)*/
9826 mono_mb_emit_ldloc (mb, uiid);
9827 mono_mb_emit_ldloc (mb, vtable);
9828 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9829 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9830 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9832 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9834 /*vt->interface_bitmap*/
9835 mono_mb_emit_ldloc (mb, vtable);
9836 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9837 mono_mb_emit_byte (mb, CEE_LDIND_I);
9840 mono_mb_emit_ldloc (mb, uiid);
9841 mono_mb_emit_icon (mb, 3);
9842 mono_mb_emit_byte (mb, CEE_SHR_UN);
9844 /*vt->interface_bitmap [(uiid) >> 3]*/
9845 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9846 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9848 /*(1 << ((uiid)&7)))*/
9849 mono_mb_emit_icon (mb, 1);
9850 mono_mb_emit_ldloc (mb, uiid);
9851 mono_mb_emit_icon (mb, 7);
9852 mono_mb_emit_byte (mb, CEE_AND);
9853 mono_mb_emit_byte (mb, CEE_SHL);
9855 /*bitwise and the whole thing*/
9856 mono_mb_emit_byte (mb, CEE_AND);
9857 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9860 mono_mb_patch_branch (mb, b1);
9861 mono_mb_emit_ldloc (mb, array_slot_addr);
9862 mono_mb_emit_ldarg (mb, 2);
9863 mono_mb_emit_byte (mb, CEE_STIND_REF);
9864 mono_mb_emit_byte (mb, CEE_RET);
9867 mono_mb_patch_branch (mb, b2);
9868 mono_mb_patch_branch (mb, b3);
9869 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9873 mono_mb_emit_ldarg (mb, 0);
9874 mono_mb_emit_ldarg (mb, 1);
9875 mono_mb_emit_ldarg (mb, 2);
9876 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9877 mono_mb_emit_byte (mb, CEE_RET);
9880 #endif /* DISABLE_JIT */
9881 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9882 info->d.virtual_stelemref.kind = kind;
9883 res = mono_mb_create (mb, signature, 4, info);
9884 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9886 mono_marshal_lock ();
9887 if (!cached_methods [kind]) {
9888 cached_methods [kind] = res;
9889 mono_marshal_unlock ();
9891 mono_marshal_unlock ();
9892 mono_free_method (res);
9896 return cached_methods [kind];
9900 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9904 g_assert (array_class->rank == 1);
9905 kind = get_virtual_stelemref_kind (array_class->element_class);
9907 return get_virtual_stelemref_wrapper (kind);
9911 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9916 *nwrappers = STELEMREF_KIND_COUNT;
9917 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9918 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9919 res [i] = get_virtual_stelemref_wrapper (i);
9924 mono_marshal_get_stelemref (void)
9926 static MonoMethod* ret = NULL;
9927 MonoMethodSignature *sig;
9928 MonoMethodBuilder *mb;
9931 guint32 b1, b2, b3, b4;
9934 int array_slot_addr;
9939 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9942 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9944 /* void stelemref (void* array, int idx, void* value) */
9945 sig->ret = &mono_defaults.void_class->byval_arg;
9946 sig->params [0] = &mono_defaults.object_class->byval_arg;
9947 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9948 sig->params [2] = &mono_defaults.object_class->byval_arg;
9951 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9952 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9953 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9957 <ldelema (bound check)>
9961 aklass = array->vtable->klass->element_class;
9962 vklass = value->vtable->klass;
9964 if (vklass->idepth < aklass->idepth)
9967 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9971 *array_slot_addr = value;
9975 if (mono_object_isinst (value, aklass))
9978 throw new ArrayTypeMismatchException ();
9981 /* ldelema (implicit bound check) */
9982 mono_mb_emit_ldarg (mb, 0);
9983 mono_mb_emit_ldarg (mb, 1);
9984 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9985 mono_mb_emit_stloc (mb, array_slot_addr);
9987 /* if (!value) goto do_store */
9988 mono_mb_emit_ldarg (mb, 2);
9989 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9991 /* aklass = array->vtable->klass->element_class */
9992 mono_mb_emit_ldarg (mb, 0);
9993 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9994 mono_mb_emit_byte (mb, CEE_LDIND_I);
9995 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9996 mono_mb_emit_byte (mb, CEE_LDIND_I);
9997 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9998 mono_mb_emit_byte (mb, CEE_LDIND_I);
9999 mono_mb_emit_stloc (mb, aklass);
10001 /* vklass = value->vtable->klass */
10002 mono_mb_emit_ldarg (mb, 2);
10003 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10004 mono_mb_emit_byte (mb, CEE_LDIND_I);
10005 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10006 mono_mb_emit_byte (mb, CEE_LDIND_I);
10007 mono_mb_emit_stloc (mb, vklass);
10009 /* if (vklass->idepth < aklass->idepth) goto failue */
10010 mono_mb_emit_ldloc (mb, vklass);
10011 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10012 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10014 mono_mb_emit_ldloc (mb, aklass);
10015 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10016 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10018 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10020 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10021 mono_mb_emit_ldloc (mb, vklass);
10022 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10023 mono_mb_emit_byte (mb, CEE_LDIND_I);
10025 mono_mb_emit_ldloc (mb, aklass);
10026 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10027 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10028 mono_mb_emit_icon (mb, 1);
10029 mono_mb_emit_byte (mb, CEE_SUB);
10030 mono_mb_emit_icon (mb, sizeof (void*));
10031 mono_mb_emit_byte (mb, CEE_MUL);
10032 mono_mb_emit_byte (mb, CEE_ADD);
10033 mono_mb_emit_byte (mb, CEE_LDIND_I);
10035 mono_mb_emit_ldloc (mb, aklass);
10037 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10039 copy_pos = mono_mb_get_label (mb);
10041 mono_mb_patch_branch (mb, b1);
10042 mono_mb_emit_ldloc (mb, array_slot_addr);
10043 mono_mb_emit_ldarg (mb, 2);
10044 mono_mb_emit_byte (mb, CEE_STIND_REF);
10046 mono_mb_emit_byte (mb, CEE_RET);
10049 mono_mb_patch_branch (mb, b2);
10050 mono_mb_patch_branch (mb, b3);
10052 mono_mb_emit_ldarg (mb, 2);
10053 mono_mb_emit_ldloc (mb, aklass);
10054 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10056 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10057 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10058 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10060 mono_mb_emit_byte (mb, CEE_RET);
10062 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10063 ret = mono_mb_create (mb, sig, 4, info);
10070 * mono_marshal_get_gsharedvt_in_wrapper:
10072 * This wrapper handles calls from normal code to gsharedvt code.
10075 mono_marshal_get_gsharedvt_in_wrapper (void)
10077 static MonoMethod* ret = NULL;
10078 MonoMethodSignature *sig;
10079 MonoMethodBuilder *mb;
10085 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10087 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10088 sig->ret = &mono_defaults.void_class->byval_arg;
10090 #ifndef DISABLE_JIT
10092 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10094 mono_mb_emit_byte (mb, CEE_RET);
10096 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10097 ret = mono_mb_create (mb, sig, 4, info);
10104 * mono_marshal_get_gsharedvt_out_wrapper:
10106 * This wrapper handles calls from gsharedvt code to normal code.
10109 mono_marshal_get_gsharedvt_out_wrapper (void)
10111 static MonoMethod* ret = NULL;
10112 MonoMethodSignature *sig;
10113 MonoMethodBuilder *mb;
10119 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10121 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10122 sig->ret = &mono_defaults.void_class->byval_arg;
10124 #ifndef DISABLE_JIT
10126 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10128 mono_mb_emit_byte (mb, CEE_RET);
10130 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10131 ret = mono_mb_create (mb, sig, 4, info);
10140 MonoMethod *method;
10143 /* LOCKING: vars accessed under the marshal lock */
10144 static ArrayElemAddr *elem_addr_cache = NULL;
10145 static int elem_addr_cache_size = 0;
10146 static int elem_addr_cache_next = 0;
10149 * mono_marshal_get_array_address:
10150 * @rank: rank of the array type
10151 * @elem_size: size in bytes of an element of an array.
10153 * Returns a MonoMethod that implements the code to get the address
10154 * of an element in a multi-dimenasional array of @rank dimensions.
10155 * The returned method takes an array as the first argument and then
10156 * @rank indexes for the @rank dimensions.
10157 * If ELEM_SIZE is 0, read the array size from the array object.
10160 mono_marshal_get_array_address (int rank, int elem_size)
10163 MonoMethodBuilder *mb;
10164 MonoMethodSignature *sig;
10167 int i, bounds, ind, realidx;
10168 int branch_pos, *branch_positions;
10172 mono_marshal_lock ();
10173 for (i = 0; i < elem_addr_cache_next; ++i) {
10174 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10175 ret = elem_addr_cache [i].method;
10179 mono_marshal_unlock ();
10183 branch_positions = g_new0 (int, rank);
10185 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10187 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10188 sig->ret = &mono_defaults.int_class->byval_arg;
10189 sig->params [0] = &mono_defaults.object_class->byval_arg;
10190 for (i = 0; i < rank; ++i) {
10191 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10194 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10195 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10198 #ifndef DISABLE_JIT
10199 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10200 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10201 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10203 /* bounds = array->bounds; */
10204 mono_mb_emit_ldarg (mb, 0);
10205 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10206 mono_mb_emit_byte (mb, CEE_LDIND_I);
10207 mono_mb_emit_stloc (mb, bounds);
10209 /* ind is the overall element index, realidx is the partial index in a single dimension */
10210 /* ind = idx0 - bounds [0].lower_bound */
10211 mono_mb_emit_ldarg (mb, 1);
10212 mono_mb_emit_ldloc (mb, bounds);
10213 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10214 mono_mb_emit_byte (mb, CEE_ADD);
10215 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10216 mono_mb_emit_byte (mb, CEE_SUB);
10217 mono_mb_emit_stloc (mb, ind);
10218 /* if (ind >= bounds [0].length) goto exeception; */
10219 mono_mb_emit_ldloc (mb, ind);
10220 mono_mb_emit_ldloc (mb, bounds);
10221 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10222 mono_mb_emit_byte (mb, CEE_ADD);
10223 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10224 /* note that we use unsigned comparison */
10225 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10227 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10228 * We could also decide to ignore the passed elem_size and get it
10229 * from the array object, to reduce the number of methods we generate:
10230 * the additional cost is 3 memory loads and a non-immediate mul.
10232 for (i = 1; i < rank; ++i) {
10233 /* realidx = idxi - bounds [i].lower_bound */
10234 mono_mb_emit_ldarg (mb, 1 + i);
10235 mono_mb_emit_ldloc (mb, bounds);
10236 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10237 mono_mb_emit_byte (mb, CEE_ADD);
10238 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10239 mono_mb_emit_byte (mb, CEE_SUB);
10240 mono_mb_emit_stloc (mb, realidx);
10241 /* if (realidx >= bounds [i].length) goto exeception; */
10242 mono_mb_emit_ldloc (mb, realidx);
10243 mono_mb_emit_ldloc (mb, bounds);
10244 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10245 mono_mb_emit_byte (mb, CEE_ADD);
10246 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10247 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10248 /* ind = ind * bounds [i].length + realidx */
10249 mono_mb_emit_ldloc (mb, ind);
10250 mono_mb_emit_ldloc (mb, bounds);
10251 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10252 mono_mb_emit_byte (mb, CEE_ADD);
10253 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10254 mono_mb_emit_byte (mb, CEE_MUL);
10255 mono_mb_emit_ldloc (mb, realidx);
10256 mono_mb_emit_byte (mb, CEE_ADD);
10257 mono_mb_emit_stloc (mb, ind);
10260 /* return array->vector + ind * element_size */
10261 mono_mb_emit_ldarg (mb, 0);
10262 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10263 mono_mb_emit_ldloc (mb, ind);
10265 mono_mb_emit_icon (mb, elem_size);
10267 /* Load arr->vtable->klass->sizes.element_class */
10268 mono_mb_emit_ldarg (mb, 0);
10269 mono_mb_emit_byte (mb, CEE_CONV_I);
10270 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10271 mono_mb_emit_byte (mb, CEE_ADD);
10272 mono_mb_emit_byte (mb, CEE_LDIND_I);
10273 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10274 mono_mb_emit_byte (mb, CEE_ADD);
10275 mono_mb_emit_byte (mb, CEE_LDIND_I);
10276 /* sizes is an union, so this reads sizes.element_size */
10277 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10278 mono_mb_emit_byte (mb, CEE_ADD);
10279 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10281 mono_mb_emit_byte (mb, CEE_MUL);
10282 mono_mb_emit_byte (mb, CEE_ADD);
10283 mono_mb_emit_byte (mb, CEE_RET);
10285 /* patch the branches to get here and throw */
10286 for (i = 1; i < rank; ++i) {
10287 mono_mb_patch_branch (mb, branch_positions [i]);
10289 mono_mb_patch_branch (mb, branch_pos);
10290 /* throw exception */
10291 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10293 g_free (branch_positions);
10294 #endif /* DISABLE_JIT */
10296 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10297 info->d.element_addr.rank = rank;
10298 info->d.element_addr.elem_size = elem_size;
10299 ret = mono_mb_create (mb, sig, 4, info);
10302 /* cache the result */
10304 mono_marshal_lock ();
10305 for (i = 0; i < elem_addr_cache_next; ++i) {
10306 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10307 /* FIXME: free ret */
10308 ret = elem_addr_cache [i].method;
10314 if (elem_addr_cache_next >= elem_addr_cache_size) {
10315 int new_size = elem_addr_cache_size + 4;
10316 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10317 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10318 g_free (elem_addr_cache);
10319 elem_addr_cache = new_array;
10320 elem_addr_cache_size = new_size;
10322 elem_addr_cache [elem_addr_cache_next].rank = rank;
10323 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10324 elem_addr_cache [elem_addr_cache_next].method = ret;
10325 elem_addr_cache_next ++;
10327 mono_marshal_unlock ();
10332 * mono_marshal_get_array_accessor_wrapper:
10334 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10337 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10339 MonoMethodSignature *sig;
10340 MonoMethodBuilder *mb;
10344 MonoGenericContext *ctx = NULL;
10345 MonoMethod *orig_method = NULL;
10346 MonoGenericContainer *container = NULL;
10350 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10351 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10352 * FIXME: Use generic methods.
10359 g_assert_not_reached ();
10361 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10362 if ((res = mono_marshal_find_in_cache (cache, method)))
10366 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10369 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10371 #ifndef DISABLE_JIT
10372 /* Call the method */
10374 mono_mb_emit_ldarg (mb, 0);
10375 for (i = 0; i < sig->param_count; i++)
10376 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10380 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10381 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10383 mono_mb_emit_managed_call (mb, method, NULL);
10385 mono_mb_emit_byte (mb, CEE_RET);
10388 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10389 info->d.array_accessor.method = method;
10393 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10394 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10396 res = mono_mb_create_and_cache_full (cache, method,
10397 mb, sig, sig->param_count + 16,
10406 mono_marshal_alloc (gulong size, MonoError *error)
10410 mono_error_init (error);
10413 res = CoTaskMemAlloc (size);
10415 res = g_try_malloc ((gulong)size);
10417 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10422 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10424 ves_icall_marshal_alloc (gulong size)
10427 void *ret = mono_marshal_alloc (size, &error);
10428 if (!mono_error_ok (&error)) {
10429 mono_error_set_pending_exception (&error);
10437 mono_marshal_free (gpointer ptr)
10440 CoTaskMemFree (ptr);
10447 mono_marshal_free_array (gpointer *ptr, int size)
10454 for (i = 0; i < size; i++)
10460 mono_marshal_string_to_utf16 (MonoString *s)
10462 return s ? mono_string_chars (s) : NULL;
10465 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10467 mono_marshal_string_to_utf16_copy (MonoString *s)
10473 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10474 if (!mono_error_ok (&error)) {
10475 mono_error_set_pending_exception (&error);
10478 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10479 res [mono_string_length (s)] = 0;
10485 * mono_marshal_set_last_error:
10487 * This function is invoked to set the last error value from a P/Invoke call
10488 * which has SetLastError set.
10491 mono_marshal_set_last_error (void)
10494 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10496 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10501 mono_marshal_set_last_error_windows (int error)
10504 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10509 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10510 gpointer dest, gint32 length)
10515 MONO_CHECK_ARG_NULL (src,);
10516 MONO_CHECK_ARG_NULL (dest,);
10518 if (src->obj.vtable->klass->rank != 1) {
10519 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10522 if (start_index < 0) {
10523 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10527 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10530 if (start_index + length > mono_array_length (src)) {
10531 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10535 element_size = mono_array_element_size (src->obj.vtable->klass);
10537 /* no references should be involved */
10538 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10540 memcpy (dest, source_addr, length * element_size);
10544 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10545 MonoArray *dest, gint32 length)
10550 MONO_CHECK_ARG_NULL (src,);
10551 MONO_CHECK_ARG_NULL (dest,);
10553 if (dest->obj.vtable->klass->rank != 1) {
10554 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10557 if (start_index < 0) {
10558 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10562 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10565 if (start_index + length > mono_array_length (dest)) {
10566 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10569 element_size = mono_array_element_size (dest->obj.vtable->klass);
10571 /* no references should be involved */
10572 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10574 memcpy (dest_addr, src, length * element_size);
10578 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10583 return mono_string_new (mono_domain_get (), ptr);
10587 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10590 MonoString *result = NULL;
10591 mono_error_init (&error);
10593 mono_error_set_argument_null (&error, "ptr", "");
10595 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10596 mono_error_set_pending_exception (&error);
10601 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10604 MonoString *res = NULL;
10605 MonoDomain *domain = mono_domain_get ();
10615 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10616 if (!mono_error_ok (&error)) {
10617 mono_error_set_pending_exception (&error);
10624 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10627 MonoString *res = NULL;
10628 MonoDomain *domain = mono_domain_get ();
10630 mono_error_init (&error);
10634 mono_error_set_argument_null (&error, "ptr", "");
10636 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10639 if (!mono_error_ok (&error))
10640 mono_error_set_pending_exception (&error);
10645 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10647 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10651 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10657 MONO_CHECK_ARG_NULL (rtype, 0);
10659 type = rtype->type;
10660 klass = mono_class_from_mono_type (type);
10661 if (!mono_class_init (klass)) {
10662 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10666 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10668 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10669 return sizeof (gpointer);
10670 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10672 MonoException *exc;
10674 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10675 exc = mono_get_exception_argument ("t", msg);
10677 mono_set_pending_exception (exc);
10681 return mono_class_native_size (klass, NULL);
10685 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10688 MonoMethod *method;
10691 MONO_CHECK_ARG_NULL (obj,);
10692 MONO_CHECK_ARG_NULL (dst,);
10694 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10698 pa [2] = &delete_old;
10700 mono_runtime_invoke_checked (method, NULL, pa, &error);
10701 if (!mono_error_ok (&error))
10702 mono_error_set_pending_exception (&error);
10706 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10708 MonoMethod *method;
10711 mono_error_init (error);
10713 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10718 mono_runtime_invoke_checked (method, NULL, pa, error);
10722 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10727 MONO_CHECK_ARG_NULL (src,);
10728 MONO_CHECK_ARG_NULL (dst,);
10730 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10732 if (t->type == MONO_TYPE_VALUETYPE) {
10733 MonoException *exc;
10736 tmp = g_strdup_printf ("Destination is a boxed value type.");
10737 exc = mono_get_exception_argument ("dst", tmp);
10740 mono_set_pending_exception (exc);
10744 ptr_to_structure (src, dst, &error);
10745 if (!mono_error_ok (&error))
10746 mono_error_set_pending_exception (&error);
10750 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10754 MonoDomain *domain = mono_domain_get ();
10759 MONO_CHECK_ARG_NULL (type, NULL);
10761 klass = mono_class_from_mono_type (type->type);
10762 if (!mono_class_init (klass)) {
10763 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10767 res = mono_object_new_checked (domain, klass, &error);
10768 if (!mono_error_ok (&error)) {
10769 mono_error_set_pending_exception (&error);
10773 ptr_to_structure (src, res, &error);
10774 if (!mono_error_ok (&error)) {
10775 mono_error_set_pending_exception (&error);
10783 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10786 MonoMarshalType *info;
10789 int match_index = -1;
10791 MONO_CHECK_ARG_NULL (type, 0);
10792 MONO_CHECK_ARG_NULL (field_name, 0);
10794 fname = mono_string_to_utf8_checked (field_name, &error);
10795 if (mono_error_set_pending_exception (&error))
10797 klass = mono_class_from_mono_type (type->type);
10798 if (!mono_class_init (klass)) {
10799 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10803 while (klass && match_index == -1) {
10804 MonoClassField* field;
10806 gpointer iter = NULL;
10807 while ((field = mono_class_get_fields (klass, &iter))) {
10808 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10810 if (!strcmp (fname, mono_field_get_name (field))) {
10817 if (match_index == -1)
10818 klass = klass->parent;
10823 if(match_index == -1) {
10824 MonoException* exc;
10827 /* Get back original class instance */
10828 klass = mono_class_from_mono_type (type->type);
10830 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10831 exc = mono_get_exception_argument ("fieldName", tmp);
10834 mono_set_pending_exception ((MonoException*)exc);
10838 info = mono_marshal_load_type_info (klass);
10839 return info->fields [match_index].offset;
10843 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10849 tres = mono_string_to_utf8_checked (string, &error);
10850 if (mono_error_set_pending_exception (&error))
10855 len = strlen (tres) + 1;
10856 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10857 memcpy (ret, tres, len);
10862 char *ret = mono_string_to_utf8_checked (string, &error);
10863 mono_error_set_pending_exception (&error);
10869 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10871 if (string == NULL)
10874 #ifdef TARGET_WIN32
10875 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10876 ((mono_string_length (string) + 1) * 2);
10878 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10880 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10881 res [mono_string_length (string)] = 0;
10887 mono_struct_delete_old (MonoClass *klass, char *ptr)
10889 MonoMarshalType *info;
10892 info = mono_marshal_load_type_info (klass);
10894 for (i = 0; i < info->num_fields; i++) {
10895 MonoMarshalConv conv;
10896 MonoType *ftype = info->fields [i].field->type;
10899 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10902 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10903 klass->unicode, &conv);
10905 cpos = ptr + info->fields [i].offset;
10908 case MONO_MARSHAL_CONV_NONE:
10909 if (MONO_TYPE_ISSTRUCT (ftype)) {
10910 mono_struct_delete_old (ftype->data.klass, cpos);
10914 case MONO_MARSHAL_CONV_STR_LPWSTR:
10915 /* We assume this field points inside a MonoString */
10917 case MONO_MARSHAL_CONV_STR_LPTSTR:
10918 #ifdef TARGET_WIN32
10919 /* We assume this field points inside a MonoString
10923 case MONO_MARSHAL_CONV_STR_LPSTR:
10924 case MONO_MARSHAL_CONV_STR_BSTR:
10925 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10926 case MONO_MARSHAL_CONV_STR_TBSTR:
10927 mono_marshal_free (*(gpointer *)cpos);
10937 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10941 MONO_CHECK_ARG_NULL (src,);
10942 MONO_CHECK_ARG_NULL (type,);
10944 klass = mono_class_from_mono_type (type->type);
10945 if (!mono_class_init (klass)) {
10946 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10950 mono_struct_delete_old (klass, (char *)src);
10954 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10957 size_t s = (size_t)size;
10960 /* This returns a valid pointer for size 0 on MS.NET */
10964 res = GlobalAlloc (GMEM_FIXED, s);
10966 res = g_try_malloc (s);
10969 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10977 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10980 size_t s = (size_t)size;
10983 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10988 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10990 res = g_try_realloc (ptr, s);
10993 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11001 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11011 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11016 res = CoTaskMemAlloc (size);
11018 if ((gulong)size == 0)
11019 /* This returns a valid pointer for size 0 on MS.NET */
11022 res = g_try_malloc ((gulong)size);
11025 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11032 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11035 CoTaskMemFree (ptr);
11042 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11047 res = CoTaskMemRealloc (ptr, size);
11049 res = g_try_realloc (ptr, (gulong)size);
11052 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11059 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11061 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11065 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11067 MonoClass *klass = mono_type_get_class (type->type);
11068 if (!mono_class_init (klass)) {
11069 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11073 return mono_ftnptr_to_delegate (klass, ftn);
11077 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11079 return mono_delegate_to_ftnptr (delegate);
11083 * mono_marshal_is_loading_type_info:
11085 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11089 mono_marshal_is_loading_type_info (MonoClass *klass)
11091 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11093 return g_slist_find (loads_list, klass) != NULL;
11097 * mono_marshal_load_type_info:
11099 * Initialize klass->marshal_info using information from metadata. This function can
11100 * recursively call itself, and the caller is responsible to avoid that by calling
11101 * mono_marshal_is_loading_type_info () beforehand.
11103 * LOCKING: Acquires the loader lock.
11106 mono_marshal_load_type_info (MonoClass* klass)
11109 guint32 native_size = 0, min_align = 1, packing;
11110 MonoMarshalType *info;
11111 MonoClassField* field;
11114 GSList *loads_list;
11116 g_assert (klass != NULL);
11118 if (klass->marshal_info)
11119 return klass->marshal_info;
11121 if (!klass->inited)
11122 mono_class_init (klass);
11124 if (klass->marshal_info)
11125 return klass->marshal_info;
11128 * This function can recursively call itself, so we keep the list of classes which are
11129 * under initialization in a TLS list.
11131 g_assert (!mono_marshal_is_loading_type_info (klass));
11132 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11133 loads_list = g_slist_prepend (loads_list, klass);
11134 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11137 while ((field = mono_class_get_fields (klass, &iter))) {
11138 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11140 if (mono_field_is_deleted (field))
11145 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11147 /* The mempool is protected by the loader lock */
11148 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11149 info->num_fields = count;
11151 /* Try to find a size for this type in metadata */
11152 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11154 if (klass->parent) {
11155 int parent_size = mono_class_native_size (klass->parent, NULL);
11157 /* Add parent size to real size */
11158 native_size += parent_size;
11159 info->native_size = parent_size;
11162 packing = klass->packing_size ? klass->packing_size : 8;
11165 while ((field = mono_class_get_fields (klass, &iter))) {
11169 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11172 if (mono_field_is_deleted (field))
11174 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11175 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11176 NULL, NULL, &info->fields [j].mspec);
11178 info->fields [j].field = field;
11180 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11181 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11182 /* This field is a hack inserted by MCS to empty structures */
11187 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11188 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11189 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11190 &align, TRUE, klass->unicode);
11191 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11192 min_align = MAX (align, min_align);
11193 info->fields [j].offset = info->native_size;
11194 info->fields [j].offset += align - 1;
11195 info->fields [j].offset &= ~(align - 1);
11196 info->native_size = info->fields [j].offset + size;
11198 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11199 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11200 &align, TRUE, klass->unicode);
11201 min_align = MAX (align, min_align);
11202 info->fields [j].offset = field->offset - sizeof (MonoObject);
11203 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11209 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11210 info->native_size = MAX (native_size, info->native_size);
11212 * If the provided Size is equal or larger than the calculated size, and there
11213 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11215 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11216 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11219 min_align = MIN (min_align, packing);
11223 if (info->native_size & (min_align - 1)) {
11224 info->native_size += min_align - 1;
11225 info->native_size &= ~(min_align - 1);
11228 info->min_align = min_align;
11230 /* Update the class's blittable info, if the layouts don't match */
11231 if (info->native_size != mono_class_value_size (klass, NULL))
11232 klass->blittable = FALSE;
11234 /* If this is an array type, ensure that we have element info */
11235 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11236 mono_marshal_load_type_info (klass->element_class);
11239 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11240 loads_list = g_slist_remove (loads_list, klass);
11241 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11243 mono_marshal_lock ();
11244 if (!klass->marshal_info) {
11245 /*We do double-checking locking on marshal_info */
11246 mono_memory_barrier ();
11247 klass->marshal_info = info;
11249 mono_marshal_unlock ();
11251 return klass->marshal_info;
11255 * mono_class_native_size:
11258 * Returns: the native size of an object instance (when marshaled
11259 * to unmanaged code)
11262 mono_class_native_size (MonoClass *klass, guint32 *align)
11264 if (!klass->marshal_info) {
11265 if (mono_marshal_is_loading_type_info (klass)) {
11270 mono_marshal_load_type_info (klass);
11275 *align = klass->marshal_info->min_align;
11277 return klass->marshal_info->native_size;
11281 * mono_type_native_stack_size:
11282 * @t: the type to return the size it uses on the stack
11284 * Returns: the number of bytes required to hold an instance of this
11285 * type on the native stack
11288 mono_type_native_stack_size (MonoType *t, guint32 *align)
11292 g_assert (t != NULL);
11298 *align = sizeof (gpointer);
11299 return sizeof (gpointer);
11303 case MONO_TYPE_BOOLEAN:
11304 case MONO_TYPE_CHAR:
11315 case MONO_TYPE_STRING:
11316 case MONO_TYPE_OBJECT:
11317 case MONO_TYPE_CLASS:
11318 case MONO_TYPE_SZARRAY:
11319 case MONO_TYPE_PTR:
11320 case MONO_TYPE_FNPTR:
11321 case MONO_TYPE_ARRAY:
11322 *align = sizeof (gpointer);
11323 return sizeof (gpointer);
11328 *align = MONO_ABI_ALIGNOF (double);
11332 *align = MONO_ABI_ALIGNOF (gint64);
11334 case MONO_TYPE_GENERICINST:
11335 if (!mono_type_generic_inst_is_valuetype (t)) {
11336 *align = sizeof (gpointer);
11337 return sizeof (gpointer);
11340 case MONO_TYPE_TYPEDBYREF:
11341 case MONO_TYPE_VALUETYPE: {
11343 MonoClass *klass = mono_class_from_mono_type (t);
11345 if (klass->enumtype)
11346 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11348 size = mono_class_native_size (klass, align);
11349 *align = *align + 3;
11359 g_error ("type 0x%02x unknown", t->type);
11365 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11366 gboolean as_field, gboolean unicode)
11368 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11371 switch (native_type) {
11372 case MONO_NATIVE_BOOLEAN:
11375 case MONO_NATIVE_I1:
11376 case MONO_NATIVE_U1:
11379 case MONO_NATIVE_I2:
11380 case MONO_NATIVE_U2:
11381 case MONO_NATIVE_VARIANTBOOL:
11384 case MONO_NATIVE_I4:
11385 case MONO_NATIVE_U4:
11386 case MONO_NATIVE_ERROR:
11389 case MONO_NATIVE_I8:
11390 case MONO_NATIVE_U8:
11391 *align = MONO_ABI_ALIGNOF (gint64);
11393 case MONO_NATIVE_R4:
11396 case MONO_NATIVE_R8:
11397 *align = MONO_ABI_ALIGNOF (double);
11399 case MONO_NATIVE_INT:
11400 case MONO_NATIVE_UINT:
11401 case MONO_NATIVE_LPSTR:
11402 case MONO_NATIVE_LPWSTR:
11403 case MONO_NATIVE_LPTSTR:
11404 case MONO_NATIVE_BSTR:
11405 case MONO_NATIVE_ANSIBSTR:
11406 case MONO_NATIVE_TBSTR:
11407 case MONO_NATIVE_LPARRAY:
11408 case MONO_NATIVE_SAFEARRAY:
11409 case MONO_NATIVE_IUNKNOWN:
11410 case MONO_NATIVE_IDISPATCH:
11411 case MONO_NATIVE_INTERFACE:
11412 case MONO_NATIVE_ASANY:
11413 case MONO_NATIVE_FUNC:
11414 case MONO_NATIVE_LPSTRUCT:
11415 *align = MONO_ABI_ALIGNOF (gpointer);
11416 return sizeof (gpointer);
11417 case MONO_NATIVE_STRUCT:
11418 klass = mono_class_from_mono_type (type);
11419 if (klass == mono_defaults.object_class &&
11420 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11424 return mono_class_native_size (klass, align);
11425 case MONO_NATIVE_BYVALTSTR: {
11426 int esize = unicode ? 2: 1;
11429 return mspec->data.array_data.num_elem * esize;
11431 case MONO_NATIVE_BYVALARRAY: {
11432 // FIXME: Have to consider ArraySubType
11434 klass = mono_class_from_mono_type (type);
11435 if (klass->element_class == mono_defaults.char_class) {
11436 esize = unicode ? 2 : 1;
11439 esize = mono_class_native_size (klass->element_class, align);
11442 return mspec->data.array_data.num_elem * esize;
11444 case MONO_NATIVE_CUSTOM:
11445 *align = sizeof (gpointer);
11446 return sizeof (gpointer);
11448 case MONO_NATIVE_CURRENCY:
11449 case MONO_NATIVE_VBBYREFSTR:
11451 g_error ("native type %02x not implemented", native_type);
11454 g_assert_not_reached ();
11458 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11460 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11469 t = &o->vtable->klass->byval_arg;
11473 case MONO_TYPE_PTR:
11476 case MONO_TYPE_BOOLEAN:
11479 case MONO_TYPE_CHAR:
11484 return mono_object_unbox (o);
11486 case MONO_TYPE_STRING:
11487 switch (string_encoding) {
11488 case MONO_NATIVE_LPWSTR:
11489 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11491 case MONO_NATIVE_LPSTR:
11492 return mono_string_to_lpstr ((MonoString*)o);
11495 g_warning ("marshaling conversion %d not implemented", string_encoding);
11496 g_assert_not_reached ();
11499 case MONO_TYPE_CLASS:
11500 case MONO_TYPE_VALUETYPE: {
11501 MonoMethod *method;
11504 MonoBoolean delete_old = FALSE;
11506 klass = t->data.klass;
11508 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11511 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11512 klass->blittable || klass->enumtype))
11513 return mono_object_unbox (o);
11515 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11516 if (!mono_error_ok (&error)) {
11517 mono_error_set_pending_exception (&error);
11521 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11522 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11526 pa [2] = &delete_old;
11528 mono_runtime_invoke_checked (method, NULL, pa, &error);
11529 if (!mono_error_ok (&error)) {
11530 mono_error_set_pending_exception (&error);
11540 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11544 /* This is a JIT icall, it sets the pending exception */
11546 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11555 t = &o->vtable->klass->byval_arg;
11557 case MONO_TYPE_STRING:
11558 switch (string_encoding) {
11559 case MONO_NATIVE_LPWSTR:
11560 case MONO_NATIVE_LPSTR:
11561 mono_marshal_free (ptr);
11564 g_warning ("marshaling conversion %d not implemented", string_encoding);
11565 g_assert_not_reached ();
11568 case MONO_TYPE_CLASS:
11569 case MONO_TYPE_VALUETYPE: {
11570 klass = t->data.klass;
11572 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11573 klass->blittable || klass->enumtype))
11576 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11577 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11583 mono_runtime_invoke_checked (method, NULL, pa, &error);
11584 if (!mono_error_ok (&error)) {
11585 mono_error_set_pending_exception (&error);
11590 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11591 mono_struct_delete_old (klass, (char *)ptr);
11594 mono_marshal_free (ptr);
11603 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11605 MonoMethodSignature *sig, *csig;
11606 MonoMethodBuilder *mb;
11611 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11612 mb->method->slot = -1;
11614 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11615 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11617 sig = mono_method_signature (method);
11618 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11619 csig->generic_param_count = 0;
11621 #ifndef DISABLE_JIT
11622 mono_mb_emit_ldarg (mb, 0);
11623 for (i = 0; i < csig->param_count; i++)
11624 mono_mb_emit_ldarg (mb, i + 1);
11625 mono_mb_emit_managed_call (mb, method, NULL);
11626 mono_mb_emit_byte (mb, CEE_RET);
11628 /* We can corlib internal methods */
11629 mb->skip_visibility = TRUE;
11631 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11632 info->d.generic_array_helper.method = method;
11633 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11641 * The mono_win32_compat_* functions are implementations of inline
11642 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11643 * although not exported by kernel32.
11645 * We map the appropiate kernel32 entries to these functions using
11646 * dllmaps declared in the global etc/mono/config.
11650 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11652 if (!dest || !source)
11655 memcpy (dest, source, length);
11659 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11661 memset (dest, fill, length);
11665 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11667 if (!dest || !source)
11670 memmove (dest, source, length);
11674 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11676 memset (dest, 0, length);
11680 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11685 for (i = 0; i < len; ++i)
11689 g_assert (i < len);
11692 while (byte && !(byte & 1))
11694 g_assert (byte == 1);
11697 *bitmask = buf [i];
11701 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11703 MonoMethodBuilder *mb;
11704 MonoMethodSignature *sig, *csig;
11705 MonoExceptionClause *clause;
11710 int i, param_count, sig_size, pos_leave;
11714 // FIXME: we need to store the exception into a MonoHandle
11715 g_assert (!mono_threads_is_coop_enabled ());
11717 klass = method->klass;
11718 image = method->klass->image;
11720 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11722 if ((res = mono_marshal_find_in_cache (cache, method)))
11725 sig = mono_method_signature (method);
11726 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11728 /* add "this" and exception param */
11729 param_count = sig->param_count + sig->hasthis + 1;
11731 /* dup & extend signature */
11732 csig = mono_metadata_signature_alloc (image, param_count);
11733 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11734 memcpy (csig, sig, sig_size);
11735 csig->param_count = param_count;
11738 csig->call_convention = MONO_CALL_DEFAULT;
11740 if (sig->hasthis) {
11742 csig->params [0] = &klass->byval_arg;
11743 /* move params up by one */
11744 for (i = 0; i < sig->param_count; i++)
11745 csig->params [i + 1] = sig->params [i];
11748 /* setup exception param as byref+[out] */
11749 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11750 &mono_defaults.exception_class->byval_arg);
11751 csig->params [param_count - 1]->byref = 1;
11752 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11754 /* convert struct return to object */
11755 if (MONO_TYPE_ISSTRUCT (sig->ret))
11756 csig->ret = &mono_defaults.object_class->byval_arg;
11758 #ifndef DISABLE_JIT
11759 /* local 0 (temp for exception object) */
11760 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11762 /* local 1 (temp for result) */
11763 if (!MONO_TYPE_IS_VOID (sig->ret))
11764 mono_mb_add_local (mb, sig->ret);
11766 /* clear exception arg */
11767 mono_mb_emit_ldarg (mb, param_count - 1);
11768 mono_mb_emit_byte (mb, CEE_LDNULL);
11769 mono_mb_emit_byte (mb, CEE_STIND_REF);
11772 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11773 clause->try_offset = mono_mb_get_label (mb);
11775 /* push method's args */
11776 for (i = 0; i < param_count - 1; i++) {
11780 mono_mb_emit_ldarg (mb, i);
11782 /* get the byval type of the param */
11783 klass = mono_class_from_mono_type (csig->params [i]);
11784 type = &klass->byval_arg;
11786 /* unbox struct args */
11787 if (MONO_TYPE_ISSTRUCT (type)) {
11788 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11790 /* byref args & and the "this" arg must remain a ptr.
11791 Otherwise make a copy of the value type */
11792 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11793 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11795 csig->params [i] = &mono_defaults.object_class->byval_arg;
11800 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11801 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11803 mono_mb_emit_op (mb, CEE_CALL, method);
11805 /* save result at local 1 */
11806 if (!MONO_TYPE_IS_VOID (sig->ret))
11807 mono_mb_emit_stloc (mb, 1);
11809 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11812 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11813 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11814 clause->data.catch_class = mono_defaults.object_class;
11816 clause->handler_offset = mono_mb_get_label (mb);
11818 /* store exception at local 0 */
11819 mono_mb_emit_stloc (mb, 0);
11820 mono_mb_emit_ldarg (mb, param_count - 1);
11821 mono_mb_emit_ldloc (mb, 0);
11822 mono_mb_emit_byte (mb, CEE_STIND_REF);
11823 mono_mb_emit_branch (mb, CEE_LEAVE);
11825 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11827 mono_mb_set_clauses (mb, 1, clause);
11829 mono_mb_patch_branch (mb, pos_leave);
11832 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11833 mono_mb_emit_ldloc (mb, 1);
11835 /* box the return value */
11836 if (MONO_TYPE_ISSTRUCT (sig->ret))
11837 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11840 mono_mb_emit_byte (mb, CEE_RET);
11843 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11850 * mono_marshal_free_dynamic_wrappers:
11852 * Free wrappers of the dynamic method METHOD.
11855 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11857 MonoImage *image = method->klass->image;
11859 g_assert (method_is_dynamic (method));
11861 /* This could be called during shutdown */
11862 if (marshal_mutex_initialized)
11863 mono_marshal_lock ();
11865 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11866 * they could be shared with other methods ?
11868 if (image->wrapper_caches.runtime_invoke_direct_cache)
11869 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11870 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11871 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11872 // FIXME: Need to clear the caches in other images as well
11873 if (image->delegate_bound_static_invoke_cache)
11874 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11876 if (marshal_mutex_initialized)
11877 mono_marshal_unlock ();
11881 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11883 g_assert (ftnptr_eh_callback);
11884 ftnptr_eh_callback (gchandle);
11888 ftnptr_eh_callback_default (guint32 gchandle)
11890 MonoException *exc;
11891 gpointer stackdata;
11893 g_assert (gchandle >= 0);
11895 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
11897 exc = (MonoException*) mono_gchandle_get_target (gchandle);
11899 mono_gchandle_free (gchandle);
11901 mono_raise_exception (exc);
11905 * mono_install_ftnptr_eh_callback:
11907 * Install a callback that should be called when there is a managed exception
11908 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
11909 * managed exception to a native exception, to properly unwind the native
11910 * stack; this native exception will then be converted back to a managed
11911 * exception in their managed-to-native wrapper.
11914 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
11916 ftnptr_eh_callback = callback;