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)
21 #include "metadata/marshal.h"
22 #include "metadata/method-builder.h"
23 #include "metadata/tabledefs.h"
24 #include "metadata/exception.h"
25 #include "metadata/appdomain.h"
26 #include "mono/metadata/abi-details.h"
27 #include "mono/metadata/debug-helpers.h"
28 #include "mono/metadata/threads.h"
29 #include "mono/metadata/monitor.h"
30 #include "mono/metadata/class-internals.h"
31 #include "mono/metadata/metadata-internals.h"
32 #include "mono/metadata/domain-internals.h"
33 #include "mono/metadata/gc-internals.h"
34 #include "mono/metadata/threads-types.h"
35 #include "mono/metadata/string-icalls.h"
36 #include "mono/metadata/attrdefs.h"
37 #include "mono/metadata/gc-internals.h"
38 #include "mono/metadata/cominterop.h"
39 #include "mono/metadata/remoting.h"
40 #include "mono/metadata/reflection-internals.h"
41 #include "mono/metadata/threadpool-ms.h"
42 #include "mono/utils/mono-counters.h"
43 #include "mono/utils/mono-tls.h"
44 #include "mono/utils/mono-memory-model.h"
45 #include "mono/utils/atomic.h"
46 #include <mono/utils/mono-threads.h>
47 #include <mono/utils/mono-error-internals.h>
52 /* #define DEBUG_RUNTIME_CODE */
54 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
58 #include "mono/cil/opcode.def"
64 * This mutex protects the various marshalling related caches in MonoImage
65 * and a few other data structures static to this file.
67 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
68 * runtime locking latice. Which means it can take simple locks suck as the image lock.
70 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
71 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
72 static mono_mutex_t marshal_mutex;
73 static gboolean marshal_mutex_initialized;
75 static MonoNativeTlsKey last_error_tls_id;
77 static MonoNativeTlsKey load_type_info_tls_id;
79 static gboolean use_aot_wrappers;
82 delegate_hash_table_add (MonoDelegate *d);
85 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
88 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
91 mono_struct_delete_old (MonoClass *klass, char *ptr);
94 mono_marshal_string_to_utf16 (MonoString *s);
97 mono_marshal_string_to_utf16_copy (MonoString *s);
100 mono_string_to_lpstr (MonoString *string_obj);
102 static MonoStringBuilder *
103 mono_string_utf8_to_builder2 (char *text);
105 static MonoStringBuilder *
106 mono_string_utf16_to_builder2 (gunichar2 *text);
109 mono_string_new_len_wrapper (const char *text, guint length);
112 mono_string_from_byvalstr (const char *data, int len);
115 mono_string_from_byvalwstr (gunichar2 *data, int len);
118 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
121 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
124 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
127 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
129 static MonoAsyncResult *
130 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
133 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
136 mono_marshal_set_last_error_windows (int error);
139 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
141 static void init_safe_handle (void);
144 ves_icall_marshal_alloc (gulong size);
146 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
147 static MonoMethod *sh_dangerous_add_ref;
148 static MonoMethod *sh_dangerous_release;
154 sh_dangerous_add_ref = mono_class_get_method_from_name (
155 mono_defaults.safehandle_class, "DangerousAddRef", 1);
156 sh_dangerous_release = mono_class_get_method_from_name (
157 mono_defaults.safehandle_class, "DangerousRelease", 0);
161 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
163 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
165 mono_register_jit_icall (func, name, sig, save);
169 mono_signature_no_pinvoke (MonoMethod *method)
171 MonoMethodSignature *sig = mono_method_signature (method);
173 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
174 sig->pinvoke = FALSE;
181 mono_marshal_init_tls (void)
183 mono_native_tls_alloc (&last_error_tls_id, NULL);
184 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
188 mono_marshal_init (void)
190 static gboolean module_initialized = FALSE;
192 if (!module_initialized) {
193 module_initialized = TRUE;
194 mono_os_mutex_init_recursive (&marshal_mutex);
195 marshal_mutex_initialized = TRUE;
197 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
198 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
199 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
200 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
201 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
202 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
203 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
204 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
205 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
206 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
207 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
208 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
209 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
210 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
211 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
212 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
213 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
214 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
215 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
216 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
217 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
218 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
219 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
220 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
221 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
222 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
223 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
224 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
225 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
226 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
227 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
228 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
229 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
230 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
231 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
232 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
233 register_icall (g_free, "g_free", "void ptr", FALSE);
234 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
235 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
236 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
237 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
238 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
239 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
240 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
241 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
242 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
243 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
245 mono_cominterop_init ();
246 mono_remoting_init ();
248 if (mono_threads_is_coop_enabled ()) {
249 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
250 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
251 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
252 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
258 mono_marshal_cleanup (void)
260 mono_cominterop_cleanup ();
262 mono_native_tls_free (load_type_info_tls_id);
263 mono_native_tls_free (last_error_tls_id);
264 mono_os_mutex_destroy (&marshal_mutex);
265 marshal_mutex_initialized = FALSE;
269 mono_marshal_lock_internal (void)
271 mono_marshal_lock ();
275 mono_marshal_unlock_internal (void)
277 mono_marshal_unlock ();
281 mono_delegate_to_ftnptr (MonoDelegate *delegate)
283 MonoMethod *method, *wrapper;
285 uint32_t target_handle = 0;
290 if (delegate->delegate_trampoline)
291 return delegate->delegate_trampoline;
293 klass = ((MonoObject *)delegate)->vtable->klass;
294 g_assert (klass->delegate);
296 method = delegate->method;
297 if (delegate->method_is_virtual)
298 method = mono_object_get_virtual_method (delegate->target, method);
300 if (mono_method_signature (method)->pinvoke) {
301 const char *exc_class, *exc_arg;
304 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
306 g_assert (exc_class);
307 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
312 if (delegate->target) {
313 /* Produce a location which can be embedded in JITted code */
314 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
317 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
319 delegate->delegate_trampoline = mono_compile_method (wrapper);
321 // Add the delegate to the delegate hash table
322 delegate_hash_table_add (delegate);
324 /* when the object is collected, collect the dynamic method, too */
325 mono_object_register_finalizer ((MonoObject*)delegate);
327 return delegate->delegate_trampoline;
331 * this hash table maps from a delegate trampoline object to a weak reference
332 * of the delegate. As an optimizations with a non-moving GC we store the
333 * object pointer itself, otherwise we use a GC handle.
335 static GHashTable *delegate_hash_table;
338 delegate_hash_table_new (void) {
339 return g_hash_table_new (NULL, NULL);
343 delegate_hash_table_remove (MonoDelegate *d)
345 guint32 gchandle = 0;
347 mono_marshal_lock ();
348 if (delegate_hash_table == NULL)
349 delegate_hash_table = delegate_hash_table_new ();
350 if (mono_gc_is_moving ())
351 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
352 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
353 mono_marshal_unlock ();
354 if (gchandle && mono_gc_is_moving ())
355 mono_gchandle_free (gchandle);
359 delegate_hash_table_add (MonoDelegate *d)
362 guint32 old_gchandle;
364 mono_marshal_lock ();
365 if (delegate_hash_table == NULL)
366 delegate_hash_table = delegate_hash_table_new ();
367 if (mono_gc_is_moving ()) {
368 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
369 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
370 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
372 mono_gchandle_free (old_gchandle);
374 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
376 mono_marshal_unlock ();
380 * mono_marshal_use_aot_wrappers:
382 * Instructs this module to use AOT compatible wrappers.
385 mono_marshal_use_aot_wrappers (gboolean use)
387 use_aot_wrappers = use;
391 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
393 static MonoClass *UnmanagedFunctionPointerAttribute;
394 MonoCustomAttrInfo *cinfo;
395 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
397 if (!UnmanagedFunctionPointerAttribute)
398 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
400 /* The attribute is only available in Net 2.0 */
401 if (UnmanagedFunctionPointerAttribute) {
403 * The pinvoke attributes are stored in a real custom attribute so we have to
406 cinfo = mono_custom_attrs_from_class (klass);
407 if (cinfo && !mono_runtime_get_no_exec ()) {
409 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, UnmanagedFunctionPointerAttribute, &error);
411 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
413 if (!mono_error_ok (&error)) {
414 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
415 mono_error_cleanup (&error);
419 mono_custom_attrs_free (cinfo);
425 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
433 mono_marshal_lock ();
434 if (delegate_hash_table == NULL)
435 delegate_hash_table = delegate_hash_table_new ();
437 if (mono_gc_is_moving ()) {
438 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
439 mono_marshal_unlock ();
441 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
445 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
446 mono_marshal_unlock ();
449 /* This is a native function, so construct a delegate for it */
450 MonoMethodSignature *sig;
452 MonoMarshalSpec **mspecs;
453 MonoMethod *invoke = mono_get_delegate_invoke (klass);
454 MonoMethodPInvoke piinfo;
455 MonoObject *this_obj;
458 if (use_aot_wrappers) {
459 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
460 this_obj = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
462 memset (&piinfo, 0, sizeof (piinfo));
463 parse_unmanaged_function_pointer_attr (klass, &piinfo);
465 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
466 mono_method_get_marshal_info (invoke, mspecs);
467 /* Freed below so don't alloc from mempool */
468 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
471 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
474 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
476 mono_metadata_free_marshal_spec (mspecs [i]);
481 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
482 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
485 if (d->object.vtable->domain != mono_domain_get ())
486 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
492 mono_delegate_free_ftnptr (MonoDelegate *delegate)
497 delegate_hash_table_remove (delegate);
499 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
501 if (!delegate->target) {
502 /* The wrapper method is shared between delegates -> no need to free it */
511 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
514 method = mono_jit_info_get_method (ji);
515 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
517 /*the target gchandle is the first entry after size and the wrapper itself.*/
518 gchandle = GPOINTER_TO_UINT (method_data [2]);
521 mono_gchandle_free (gchandle);
523 mono_runtime_free_method (mono_object_domain (delegate), method);
528 mono_string_from_byvalstr (const char *data, int max_len)
530 MonoDomain *domain = mono_domain_get ();
536 while (len < max_len - 1 && data [len])
539 return mono_string_new_len (domain, data, len);
543 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
545 MonoDomain *domain = mono_domain_get ();
551 while (data [len]) len++;
553 return mono_string_new_utf16 (domain, data, MIN (len, max_len));
557 mono_array_to_savearray (MonoArray *array)
562 g_assert_not_reached ();
567 mono_array_to_lparray (MonoArray *array)
570 gpointer *nativeArray = NULL;
571 int nativeArraySize = 0;
581 klass = array->obj.vtable->klass;
583 switch (klass->element_class->byval_arg.type) {
585 g_assert_not_reached ();
587 case MONO_TYPE_CLASS:
588 nativeArraySize = array->max_length;
589 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
590 for(i = 0; i < nativeArraySize; ++i)
591 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
594 case MONO_TYPE_BOOLEAN:
607 case MONO_TYPE_VALUETYPE:
611 case MONO_TYPE_GENERICINST:
612 case MONO_TYPE_OBJECT:
613 case MONO_TYPE_ARRAY:
614 case MONO_TYPE_SZARRAY:
615 case MONO_TYPE_STRING:
617 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
618 g_assert_not_reached ();
621 return array->vector;
625 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
636 klass = array->obj.vtable->klass;
638 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
639 for(i = 0; i < array->max_length; ++i)
640 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
647 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
649 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
651 if (elclass == mono_defaults.byte_class) {
652 GError *error = NULL;
656 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
659 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
663 g_error_free (error);
666 g_assert_not_reached ();
670 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
672 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
676 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
678 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
680 if (elclass == mono_defaults.byte_class) {
682 GError *error = NULL;
684 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
686 MonoException *exc = mono_get_exception_argument ("string", error->message);
687 g_error_free (error);
688 mono_raise_exception (exc);
691 memcpy (native_arr, as, MIN (strlen (as), elnum));
694 g_assert_not_reached ();
699 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
701 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
704 static MonoStringBuilder *
705 mono_string_builder_new (int starting_string_length)
707 static MonoClass *string_builder_class;
708 static MonoMethod *sb_ctor;
709 static void *args [1];
710 int initial_len = starting_string_length;
716 MonoMethodDesc *desc;
719 string_builder_class = mono_class_from_name (mono_defaults.corlib, "System.Text", "StringBuilder");
720 g_assert (string_builder_class);
721 desc = mono_method_desc_new (":.ctor(int)", FALSE);
722 m = mono_method_desc_search_in_class (desc, string_builder_class);
724 mono_method_desc_free (desc);
725 mono_memory_barrier ();
729 // We make a new array in the _to_builder function, so this
730 // array will always be garbage collected.
731 args [0] = &initial_len;
733 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new (mono_domain_get (), string_builder_class);
737 mono_runtime_invoke (sb_ctor, sb, args, &exc);
740 g_assert (sb->chunkChars->max_length >= initial_len);
746 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
748 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
749 gunichar2 *charSrc = (gunichar2 *)text;
750 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
752 sb->chunkLength = string_len;
758 mono_string_utf16_to_builder2 (gunichar2 *text)
764 for (len = 0; text [len] != 0; ++len);
766 MonoStringBuilder *sb = mono_string_builder_new (len);
767 mono_string_utf16_to_builder (sb, text);
773 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
778 int len = strlen (text);
779 if (len > mono_string_builder_capacity (sb))
780 len = mono_string_builder_capacity (sb);
782 GError *error = NULL;
784 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
787 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
788 mono_string_utf16_to_builder_copy (sb, ut, copied);
790 g_error_free (error);
796 mono_string_utf8_to_builder2 (char *text)
801 int len = strlen (text);
802 MonoStringBuilder *sb = mono_string_builder_new (len);
803 mono_string_utf8_to_builder (sb, text);
810 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
816 for (len = 0; text [len] != 0; ++len);
818 if (len > mono_string_builder_capacity (sb))
819 len = mono_string_builder_capacity (sb);
821 mono_string_utf16_to_builder_copy (sb, text, len);
825 * mono_string_builder_to_utf8:
826 * @sb: the string builder
828 * Converts to utf8 the contents of the MonoStringBuilder.
830 * Returns: a utf8 string with the contents of the StringBuilder.
832 * The return value must be released with g_free.
835 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
838 GError *gerror = NULL;
844 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
846 guint str_len = mono_string_builder_string_length (sb);
848 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
851 g_error_free (gerror);
853 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
856 guint len = mono_string_builder_capacity (sb) + 1;
857 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
858 mono_error_raise_exception (&error); /* FIXME don't raise here */
859 g_assert (str_len < len);
860 memcpy (res, tmp, str_len * sizeof (gchar));
871 * mono_string_builder_to_utf16:
872 * @sb: the string builder
874 * Converts to utf16 the contents of the MonoStringBuilder.
876 * Returns: a utf16 string with the contents of the StringBuilder.
878 * The return value must not be freed.
881 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
888 g_assert (sb->chunkChars);
890 guint len = mono_string_builder_capacity (sb);
895 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
896 mono_error_raise_exception (&error); /* FIXME don't raise here */
903 MonoStringBuilder* chunk = sb;
905 if (chunk->chunkLength > 0) {
906 // Check that we will not overrun our boundaries.
907 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
909 if (chunk->chunkLength <= len) {
910 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
912 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
915 len -= chunk->chunkLength;
917 chunk = chunk->chunkPrevious;
918 } while (chunk != NULL);
924 mono_string_to_lpstr (MonoString *s)
929 GError *error = NULL;
935 as = CoTaskMemAlloc (1);
940 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
942 MonoException *exc = mono_get_exception_argument ("string", error->message);
943 g_error_free (error);
944 mono_raise_exception(exc);
947 as = CoTaskMemAlloc (len + 1);
948 memcpy (as, tmp, len + 1);
953 return mono_string_to_utf8 (s);
958 mono_string_to_ansibstr (MonoString *string_obj)
960 g_error ("UnmanagedMarshal.BStr is not implemented.");
965 * mono_string_to_byvalstr:
966 * @dst: Where to store the null-terminated utf8 decoded string.
967 * @src: the MonoString to copy.
968 * @size: the maximum number of bytes to copy.
970 * Copies the MonoString pointed to by @src as a utf8 string
971 * into @dst, it copies at most @size bytes into the destination.
974 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
979 g_assert (dst != NULL);
982 memset (dst, 0, size);
986 s = mono_string_to_utf8 (src);
987 len = MIN (size, strlen (s));
990 memcpy (dst, s, len);
995 * mono_string_to_byvalwstr:
996 * @dst: Where to store the null-terminated utf16 decoded string.
997 * @src: the MonoString to copy.
998 * @size: the maximum number of bytes to copy.
1000 * Copies the MonoString pointed to by @src as a utf16 string into
1001 * @dst, it copies at most @size bytes into the destination (including
1002 * a terminating 16-bit zero terminator).
1005 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1009 g_assert (dst != NULL);
1010 g_assert (size > 1);
1013 memset (dst, 0, size * 2);
1017 len = MIN (size, (mono_string_length (src)));
1018 memcpy (dst, mono_string_chars (src), size * 2);
1019 if (size <= mono_string_length (src))
1021 *((gunichar2 *) dst + len) = 0;
1025 mono_string_new_len_wrapper (const char *text, guint length)
1027 return mono_string_new_len (mono_domain_get (), text, length);
1033 * mono_mb_emit_exception_marshal_directive:
1035 * This function assumes ownership of MSG, which should be malloc-ed.
1038 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1043 s = mono_image_strdup (mb->method->klass->image, msg);
1048 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1051 #endif /* !DISABLE_JIT */
1054 mono_type_to_ldind (MonoType *type)
1060 switch (type->type) {
1062 return CEE_LDIND_I1;
1064 case MONO_TYPE_BOOLEAN:
1065 return CEE_LDIND_U1;
1067 return CEE_LDIND_I2;
1069 case MONO_TYPE_CHAR:
1070 return CEE_LDIND_U2;
1072 return CEE_LDIND_I4;
1074 return CEE_LDIND_U4;
1078 case MONO_TYPE_FNPTR:
1080 case MONO_TYPE_CLASS:
1081 case MONO_TYPE_STRING:
1082 case MONO_TYPE_OBJECT:
1083 case MONO_TYPE_SZARRAY:
1084 case MONO_TYPE_ARRAY:
1085 return CEE_LDIND_REF;
1088 return CEE_LDIND_I8;
1090 return CEE_LDIND_R4;
1092 return CEE_LDIND_R8;
1093 case MONO_TYPE_VALUETYPE:
1094 if (type->data.klass->enumtype) {
1095 type = mono_class_enum_basetype (type->data.klass);
1099 case MONO_TYPE_TYPEDBYREF:
1101 case MONO_TYPE_GENERICINST:
1102 type = &type->data.generic_class->container_class->byval_arg;
1105 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1111 mono_type_to_stind (MonoType *type)
1117 switch (type->type) {
1120 case MONO_TYPE_BOOLEAN:
1121 return CEE_STIND_I1;
1124 case MONO_TYPE_CHAR:
1125 return CEE_STIND_I2;
1128 return CEE_STIND_I4;
1132 case MONO_TYPE_FNPTR:
1134 case MONO_TYPE_CLASS:
1135 case MONO_TYPE_STRING:
1136 case MONO_TYPE_OBJECT:
1137 case MONO_TYPE_SZARRAY:
1138 case MONO_TYPE_ARRAY:
1139 return CEE_STIND_REF;
1142 return CEE_STIND_I8;
1144 return CEE_STIND_R4;
1146 return CEE_STIND_R8;
1147 case MONO_TYPE_VALUETYPE:
1148 if (type->data.klass->enumtype) {
1149 type = mono_class_enum_basetype (type->data.klass);
1153 case MONO_TYPE_TYPEDBYREF:
1155 case MONO_TYPE_GENERICINST:
1156 type = &type->data.generic_class->container_class->byval_arg;
1159 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1167 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1170 case MONO_MARSHAL_CONV_BOOL_I4:
1171 mono_mb_emit_ldloc (mb, 1);
1172 mono_mb_emit_ldloc (mb, 0);
1173 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1174 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1175 mono_mb_emit_byte (mb, 3);
1176 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1177 mono_mb_emit_byte (mb, CEE_BR_S);
1178 mono_mb_emit_byte (mb, 1);
1179 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1180 mono_mb_emit_byte (mb, CEE_STIND_I1);
1182 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1183 mono_mb_emit_ldloc (mb, 1);
1184 mono_mb_emit_ldloc (mb, 0);
1185 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1186 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1187 mono_mb_emit_byte (mb, 3);
1188 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1189 mono_mb_emit_byte (mb, CEE_BR_S);
1190 mono_mb_emit_byte (mb, 1);
1191 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1192 mono_mb_emit_byte (mb, CEE_STIND_I1);
1194 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1195 MonoClass *eklass = NULL;
1198 if (type->type == MONO_TYPE_SZARRAY) {
1199 eklass = type->data.klass;
1201 g_assert_not_reached ();
1204 esize = mono_class_native_size (eklass, NULL);
1206 /* create a new array */
1207 mono_mb_emit_ldloc (mb, 1);
1208 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1209 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1210 mono_mb_emit_byte (mb, CEE_STIND_I);
1212 if (eklass->blittable) {
1213 /* copy the elements */
1214 mono_mb_emit_ldloc (mb, 1);
1215 mono_mb_emit_byte (mb, CEE_LDIND_I);
1216 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1217 mono_mb_emit_byte (mb, CEE_ADD);
1218 mono_mb_emit_ldloc (mb, 0);
1219 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1220 mono_mb_emit_byte (mb, CEE_PREFIX1);
1221 mono_mb_emit_byte (mb, CEE_CPBLK);
1224 int array_var, src_var, dst_var, index_var;
1225 guint32 label2, label3;
1227 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1228 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1229 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1232 mono_mb_emit_ldloc (mb, 1);
1233 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1234 mono_mb_emit_stloc (mb, array_var);
1236 /* save the old src pointer */
1237 mono_mb_emit_ldloc (mb, 0);
1238 mono_mb_emit_stloc (mb, src_var);
1239 /* save the old dst pointer */
1240 mono_mb_emit_ldloc (mb, 1);
1241 mono_mb_emit_stloc (mb, dst_var);
1243 /* Emit marshalling loop */
1244 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1245 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1246 mono_mb_emit_stloc (mb, index_var);
1249 label2 = mono_mb_get_label (mb);
1250 mono_mb_emit_ldloc (mb, index_var);
1251 mono_mb_emit_ldloc (mb, array_var);
1252 mono_mb_emit_byte (mb, CEE_LDLEN);
1253 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1255 /* src is already set */
1258 mono_mb_emit_ldloc (mb, array_var);
1259 mono_mb_emit_ldloc (mb, index_var);
1260 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1261 mono_mb_emit_stloc (mb, 1);
1263 /* Do the conversion */
1264 emit_struct_conv (mb, eklass, TRUE);
1267 mono_mb_emit_add_to_local (mb, index_var, 1);
1269 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1271 mono_mb_patch_branch (mb, label3);
1273 /* restore the old src pointer */
1274 mono_mb_emit_ldloc (mb, src_var);
1275 mono_mb_emit_stloc (mb, 0);
1276 /* restore the old dst pointer */
1277 mono_mb_emit_ldloc (mb, dst_var);
1278 mono_mb_emit_stloc (mb, 1);
1282 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1283 MonoClass *eclass = mono_defaults.char_class;
1285 /* create a new array */
1286 mono_mb_emit_ldloc (mb, 1);
1287 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1288 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1289 mono_mb_emit_byte (mb, CEE_STIND_REF);
1291 mono_mb_emit_ldloc (mb, 1);
1292 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1293 mono_mb_emit_ldloc (mb, 0);
1294 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1295 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1298 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1299 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1300 mono_mb_emit_ldloc (mb, 1);
1301 mono_mb_emit_ldloc (mb, 0);
1302 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1303 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1305 mono_mb_emit_ldloc (mb, 1);
1306 mono_mb_emit_ldloc (mb, 0);
1307 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1309 mono_mb_emit_byte (mb, CEE_STIND_REF);
1311 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1312 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1313 mono_mb_emit_ldloc (mb, 1);
1314 mono_mb_emit_ldloc (mb, 0);
1315 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1316 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1318 mono_mb_emit_ldloc (mb, 1);
1319 mono_mb_emit_ldloc (mb, 0);
1320 mono_mb_emit_icall (mb, mono_string_from_utf16);
1322 mono_mb_emit_byte (mb, CEE_STIND_REF);
1324 case MONO_MARSHAL_CONV_STR_LPTSTR:
1325 mono_mb_emit_ldloc (mb, 1);
1326 mono_mb_emit_ldloc (mb, 0);
1327 mono_mb_emit_byte (mb, CEE_LDIND_I);
1329 mono_mb_emit_icall (mb, mono_string_from_utf16);
1331 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1333 mono_mb_emit_byte (mb, CEE_STIND_REF);
1335 case MONO_MARSHAL_CONV_STR_LPSTR:
1336 mono_mb_emit_ldloc (mb, 1);
1337 mono_mb_emit_ldloc (mb, 0);
1338 mono_mb_emit_byte (mb, CEE_LDIND_I);
1339 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1340 mono_mb_emit_byte (mb, CEE_STIND_REF);
1342 case MONO_MARSHAL_CONV_STR_LPWSTR:
1343 mono_mb_emit_ldloc (mb, 1);
1344 mono_mb_emit_ldloc (mb, 0);
1345 mono_mb_emit_byte (mb, CEE_LDIND_I);
1346 mono_mb_emit_icall (mb, mono_string_from_utf16);
1347 mono_mb_emit_byte (mb, CEE_STIND_REF);
1349 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1350 MonoClass *klass = mono_class_from_mono_type (type);
1351 int src_var, dst_var;
1353 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1354 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1356 /* *dst = new object */
1357 mono_mb_emit_ldloc (mb, 1);
1358 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1359 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1360 mono_mb_emit_byte (mb, CEE_STIND_REF);
1362 /* save the old src pointer */
1363 mono_mb_emit_ldloc (mb, 0);
1364 mono_mb_emit_stloc (mb, src_var);
1365 /* save the old dst pointer */
1366 mono_mb_emit_ldloc (mb, 1);
1367 mono_mb_emit_stloc (mb, dst_var);
1369 /* dst = pointer to newly created object data */
1370 mono_mb_emit_ldloc (mb, 1);
1371 mono_mb_emit_byte (mb, CEE_LDIND_I);
1372 mono_mb_emit_icon (mb, sizeof (MonoObject));
1373 mono_mb_emit_byte (mb, CEE_ADD);
1374 mono_mb_emit_stloc (mb, 1);
1376 emit_struct_conv (mb, klass, TRUE);
1378 /* restore the old src pointer */
1379 mono_mb_emit_ldloc (mb, src_var);
1380 mono_mb_emit_stloc (mb, 0);
1381 /* restore the old dst pointer */
1382 mono_mb_emit_ldloc (mb, dst_var);
1383 mono_mb_emit_stloc (mb, 1);
1386 case MONO_MARSHAL_CONV_DEL_FTN: {
1387 MonoClass *klass = mono_class_from_mono_type (type);
1389 mono_mb_emit_ldloc (mb, 1);
1390 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1391 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1392 mono_mb_emit_ldloc (mb, 0);
1393 mono_mb_emit_byte (mb, CEE_LDIND_I);
1394 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1395 mono_mb_emit_byte (mb, CEE_STIND_REF);
1398 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1399 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1403 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1404 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1405 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1406 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1408 #endif /* DISABLE_COM */
1410 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1412 * Passing SafeHandles as ref does not allow the unmanaged code
1413 * to change the SafeHandle value. If the value is changed,
1414 * we should issue a diagnostic exception (NotSupportedException)
1415 * that informs the user that changes to handles in unmanaged code
1418 * Since we currently have no access to the original
1419 * SafeHandle that was used during the marshalling,
1420 * for now we just ignore this, and ignore/discard any
1421 * changes that might have happened to the handle.
1426 case MONO_MARSHAL_CONV_HANDLEREF: {
1428 * Passing HandleRefs in a struct that is ref()ed does not
1429 * copy the values back to the HandleRef
1434 case MONO_MARSHAL_CONV_STR_BSTR:
1435 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1436 case MONO_MARSHAL_CONV_STR_TBSTR:
1437 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1439 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1441 mono_mb_emit_exception_marshal_directive (mb, msg);
1448 conv_to_icall (MonoMarshalConv conv)
1451 case MONO_MARSHAL_CONV_STR_LPWSTR:
1452 return mono_marshal_string_to_utf16;
1453 case MONO_MARSHAL_CONV_LPWSTR_STR:
1454 return mono_string_from_utf16;
1455 case MONO_MARSHAL_CONV_LPTSTR_STR:
1456 return mono_string_new_wrapper;
1457 case MONO_MARSHAL_CONV_LPSTR_STR:
1458 return mono_string_new_wrapper;
1459 case MONO_MARSHAL_CONV_STR_LPTSTR:
1461 return mono_marshal_string_to_utf16;
1463 return mono_string_to_lpstr;
1465 case MONO_MARSHAL_CONV_STR_LPSTR:
1466 return mono_string_to_lpstr;
1467 case MONO_MARSHAL_CONV_STR_BSTR:
1468 return mono_string_to_bstr;
1469 case MONO_MARSHAL_CONV_BSTR_STR:
1470 return mono_string_from_bstr;
1471 case MONO_MARSHAL_CONV_STR_TBSTR:
1472 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1473 return mono_string_to_ansibstr;
1474 case MONO_MARSHAL_CONV_SB_LPSTR:
1475 return mono_string_builder_to_utf8;
1476 case MONO_MARSHAL_CONV_SB_LPTSTR:
1478 return mono_string_builder_to_utf16;
1480 return mono_string_builder_to_utf8;
1482 case MONO_MARSHAL_CONV_SB_LPWSTR:
1483 return mono_string_builder_to_utf16;
1484 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1485 return mono_array_to_savearray;
1486 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1487 return mono_array_to_lparray;
1488 case MONO_MARSHAL_FREE_LPARRAY:
1489 return mono_free_lparray;
1490 case MONO_MARSHAL_CONV_DEL_FTN:
1491 return mono_delegate_to_ftnptr;
1492 case MONO_MARSHAL_CONV_FTN_DEL:
1493 return mono_ftnptr_to_delegate;
1494 case MONO_MARSHAL_CONV_LPSTR_SB:
1495 return mono_string_utf8_to_builder;
1496 case MONO_MARSHAL_CONV_LPTSTR_SB:
1498 return mono_string_utf16_to_builder;
1500 return mono_string_utf8_to_builder;
1502 case MONO_MARSHAL_CONV_LPWSTR_SB:
1503 return mono_string_utf16_to_builder;
1504 case MONO_MARSHAL_FREE_ARRAY:
1505 return mono_marshal_free_array;
1506 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1507 return mono_string_to_byvalstr;
1508 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1509 return mono_string_to_byvalwstr;
1511 g_assert_not_reached ();
1518 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1523 case MONO_MARSHAL_CONV_BOOL_I4:
1524 mono_mb_emit_ldloc (mb, 1);
1525 mono_mb_emit_ldloc (mb, 0);
1526 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1527 mono_mb_emit_byte (mb, CEE_STIND_I4);
1529 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1530 mono_mb_emit_ldloc (mb, 1);
1531 mono_mb_emit_ldloc (mb, 0);
1532 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1533 mono_mb_emit_byte (mb, CEE_NEG);
1534 mono_mb_emit_byte (mb, CEE_STIND_I2);
1536 case MONO_MARSHAL_CONV_STR_LPWSTR:
1537 case MONO_MARSHAL_CONV_STR_LPSTR:
1538 case MONO_MARSHAL_CONV_STR_LPTSTR:
1539 case MONO_MARSHAL_CONV_STR_BSTR:
1540 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1541 case MONO_MARSHAL_CONV_STR_TBSTR: {
1544 /* free space if free == true */
1545 mono_mb_emit_ldloc (mb, 2);
1546 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1547 mono_mb_emit_ldloc (mb, 1);
1548 mono_mb_emit_byte (mb, CEE_LDIND_I);
1549 mono_mb_emit_icall (mb, g_free);
1550 mono_mb_patch_short_branch (mb, pos);
1552 mono_mb_emit_ldloc (mb, 1);
1553 mono_mb_emit_ldloc (mb, 0);
1554 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1555 mono_mb_emit_icall (mb, conv_to_icall (conv));
1556 mono_mb_emit_byte (mb, CEE_STIND_I);
1559 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1560 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1561 case MONO_MARSHAL_CONV_DEL_FTN:
1562 mono_mb_emit_ldloc (mb, 1);
1563 mono_mb_emit_ldloc (mb, 0);
1564 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1565 mono_mb_emit_icall (mb, conv_to_icall (conv));
1566 mono_mb_emit_byte (mb, CEE_STIND_I);
1568 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1569 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1572 mono_mb_emit_ldloc (mb, 1); /* dst */
1573 mono_mb_emit_ldloc (mb, 0);
1574 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1575 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1576 mono_mb_emit_icall (mb, conv_to_icall (conv));
1579 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1580 MonoClass *eklass = NULL;
1583 if (type->type == MONO_TYPE_SZARRAY) {
1584 eklass = type->data.klass;
1586 g_assert_not_reached ();
1589 if (eklass->valuetype)
1590 esize = mono_class_native_size (eklass, NULL);
1592 esize = sizeof (gpointer);
1594 mono_mb_emit_ldloc (mb, 0);
1595 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1596 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1598 if (eklass->blittable) {
1599 mono_mb_emit_ldloc (mb, 1);
1600 mono_mb_emit_ldloc (mb, 0);
1601 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1602 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1603 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1604 mono_mb_emit_byte (mb, CEE_PREFIX1);
1605 mono_mb_emit_byte (mb, CEE_CPBLK);
1607 int array_var, src_var, dst_var, index_var;
1608 guint32 label2, label3;
1610 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1611 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1612 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1615 mono_mb_emit_ldloc (mb, 0);
1616 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1617 mono_mb_emit_stloc (mb, array_var);
1619 /* save the old src pointer */
1620 mono_mb_emit_ldloc (mb, 0);
1621 mono_mb_emit_stloc (mb, src_var);
1622 /* save the old dst pointer */
1623 mono_mb_emit_ldloc (mb, 1);
1624 mono_mb_emit_stloc (mb, dst_var);
1626 /* Emit marshalling loop */
1627 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1628 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1629 mono_mb_emit_stloc (mb, index_var);
1632 label2 = mono_mb_get_label (mb);
1633 mono_mb_emit_ldloc (mb, index_var);
1634 mono_mb_emit_ldloc (mb, array_var);
1635 mono_mb_emit_byte (mb, CEE_LDLEN);
1636 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1639 mono_mb_emit_ldloc (mb, array_var);
1640 mono_mb_emit_ldloc (mb, index_var);
1641 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1642 mono_mb_emit_stloc (mb, 0);
1644 /* dst is already set */
1646 /* Do the conversion */
1647 emit_struct_conv (mb, eklass, FALSE);
1650 mono_mb_emit_add_to_local (mb, index_var, 1);
1652 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1654 mono_mb_patch_branch (mb, label3);
1656 /* restore the old src pointer */
1657 mono_mb_emit_ldloc (mb, src_var);
1658 mono_mb_emit_stloc (mb, 0);
1659 /* restore the old dst pointer */
1660 mono_mb_emit_ldloc (mb, dst_var);
1661 mono_mb_emit_stloc (mb, 1);
1664 mono_mb_patch_branch (mb, pos);
1667 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1668 mono_mb_emit_ldloc (mb, 0);
1669 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1670 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1672 mono_mb_emit_ldloc (mb, 1);
1673 mono_mb_emit_ldloc (mb, 0);
1674 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1675 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1676 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1677 mono_mb_patch_short_branch (mb, pos);
1680 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1681 int src_var, dst_var;
1683 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1684 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1686 mono_mb_emit_ldloc (mb, 0);
1687 mono_mb_emit_byte (mb, CEE_LDIND_I);
1688 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1690 /* save the old src pointer */
1691 mono_mb_emit_ldloc (mb, 0);
1692 mono_mb_emit_stloc (mb, src_var);
1693 /* save the old dst pointer */
1694 mono_mb_emit_ldloc (mb, 1);
1695 mono_mb_emit_stloc (mb, dst_var);
1697 /* src = pointer to object data */
1698 mono_mb_emit_ldloc (mb, 0);
1699 mono_mb_emit_byte (mb, CEE_LDIND_I);
1700 mono_mb_emit_icon (mb, sizeof (MonoObject));
1701 mono_mb_emit_byte (mb, CEE_ADD);
1702 mono_mb_emit_stloc (mb, 0);
1704 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1706 /* restore the old src pointer */
1707 mono_mb_emit_ldloc (mb, src_var);
1708 mono_mb_emit_stloc (mb, 0);
1709 /* restore the old dst pointer */
1710 mono_mb_emit_ldloc (mb, dst_var);
1711 mono_mb_emit_stloc (mb, 1);
1713 mono_mb_patch_branch (mb, pos);
1718 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1719 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1720 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1721 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1723 #endif /* DISABLE_COM */
1725 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1728 mono_mb_emit_ldloc (mb, 0);
1729 mono_mb_emit_byte (mb, CEE_LDIND_I);
1730 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1731 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1732 mono_mb_patch_branch (mb, pos);
1734 /* Pull the handle field from SafeHandle */
1735 mono_mb_emit_ldloc (mb, 1);
1736 mono_mb_emit_ldloc (mb, 0);
1737 mono_mb_emit_byte (mb, CEE_LDIND_I);
1738 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1739 mono_mb_emit_byte (mb, CEE_LDIND_I);
1740 mono_mb_emit_byte (mb, CEE_STIND_I);
1744 case MONO_MARSHAL_CONV_HANDLEREF: {
1745 mono_mb_emit_ldloc (mb, 1);
1746 mono_mb_emit_ldloc (mb, 0);
1747 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1748 mono_mb_emit_byte (mb, CEE_ADD);
1749 mono_mb_emit_byte (mb, CEE_LDIND_I);
1750 mono_mb_emit_byte (mb, CEE_STIND_I);
1755 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1756 MonoException *exc = mono_get_exception_not_implemented (msg);
1757 g_warning ("%s", msg);
1759 mono_raise_exception (exc);
1765 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1766 MonoMarshalNative string_encoding)
1768 MonoMarshalType *info;
1772 emit_struct_conv(mb, klass->parent, to_object);
1774 info = mono_marshal_load_type_info (klass);
1776 if (info->native_size == 0)
1779 if (klass->blittable) {
1780 int msize = mono_class_value_size (klass, NULL);
1781 g_assert (msize == info->native_size);
1782 mono_mb_emit_ldloc (mb, 1);
1783 mono_mb_emit_ldloc (mb, 0);
1784 mono_mb_emit_icon (mb, msize);
1785 mono_mb_emit_byte (mb, CEE_PREFIX1);
1786 mono_mb_emit_byte (mb, CEE_CPBLK);
1788 mono_mb_emit_add_to_local (mb, 0, msize);
1789 mono_mb_emit_add_to_local (mb, 1, msize);
1793 if (klass != mono_defaults.safehandle_class) {
1794 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1795 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1796 mono_type_full_name (&klass->byval_arg));
1797 mono_mb_emit_exception_marshal_directive (mb, msg);
1802 for (i = 0; i < info->num_fields; i++) {
1803 MonoMarshalNative ntype;
1804 MonoMarshalConv conv;
1805 MonoType *ftype = info->fields [i].field->type;
1808 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1810 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1813 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1816 msize = klass->instance_size - info->fields [i].field->offset;
1817 usize = info->native_size - info->fields [i].offset;
1819 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1820 usize = info->fields [i + 1].offset - info->fields [i].offset;
1823 if (klass != mono_defaults.safehandle_class){
1825 * FIXME: Should really check for usize==0 and msize>0, but we apply
1826 * the layout to the managed structure as well.
1829 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1830 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1831 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1832 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1833 "reference field at the same offset as another field.",
1834 mono_type_full_name (&klass->byval_arg));
1839 case MONO_MARSHAL_CONV_NONE: {
1842 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1843 ftype->type == MONO_TYPE_U) {
1844 mono_mb_emit_ldloc (mb, 1);
1845 mono_mb_emit_ldloc (mb, 0);
1846 mono_mb_emit_byte (mb, CEE_LDIND_I);
1847 mono_mb_emit_byte (mb, CEE_STIND_I);
1858 case MONO_TYPE_BOOLEAN:
1861 case MONO_TYPE_CHAR:
1867 mono_mb_emit_ldloc (mb, 1);
1868 mono_mb_emit_ldloc (mb, 0);
1869 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1871 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1872 mono_mb_emit_byte (mb, CEE_STIND_I2);
1874 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1875 mono_mb_emit_byte (mb, CEE_STIND_I1);
1878 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1879 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1882 case MONO_TYPE_VALUETYPE: {
1883 int src_var, dst_var;
1885 if (ftype->data.klass->enumtype) {
1886 ftype = mono_class_enum_basetype (ftype->data.klass);
1890 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1891 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1893 /* save the old src pointer */
1894 mono_mb_emit_ldloc (mb, 0);
1895 mono_mb_emit_stloc (mb, src_var);
1896 /* save the old dst pointer */
1897 mono_mb_emit_ldloc (mb, 1);
1898 mono_mb_emit_stloc (mb, dst_var);
1900 emit_struct_conv (mb, ftype->data.klass, to_object);
1902 /* restore the old src pointer */
1903 mono_mb_emit_ldloc (mb, src_var);
1904 mono_mb_emit_stloc (mb, 0);
1905 /* restore the old dst pointer */
1906 mono_mb_emit_ldloc (mb, dst_var);
1907 mono_mb_emit_stloc (mb, 1);
1910 case MONO_TYPE_OBJECT: {
1913 static MonoMethod *variant_clear = NULL;
1914 static MonoMethod *get_object_for_native_variant = NULL;
1917 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1918 if (!get_object_for_native_variant)
1919 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1920 mono_mb_emit_ldloc (mb, 1);
1921 mono_mb_emit_ldloc (mb, 0);
1922 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1923 mono_mb_emit_byte (mb, CEE_STIND_REF);
1925 mono_mb_emit_ldloc (mb, 0);
1926 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1929 static MonoMethod *get_native_variant_for_object = NULL;
1931 if (!get_native_variant_for_object)
1932 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1934 mono_mb_emit_ldloc (mb, 0);
1935 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1936 mono_mb_emit_ldloc (mb, 1);
1937 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1940 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1941 mono_mb_emit_exception_marshal_directive (mb, msg);
1947 g_warning ("marshaling type %02x not implemented", ftype->type);
1948 g_assert_not_reached ();
1953 int src_var, dst_var;
1955 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1956 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1958 /* save the old src pointer */
1959 mono_mb_emit_ldloc (mb, 0);
1960 mono_mb_emit_stloc (mb, src_var);
1961 /* save the old dst pointer */
1962 mono_mb_emit_ldloc (mb, 1);
1963 mono_mb_emit_stloc (mb, dst_var);
1966 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1968 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1970 /* restore the old src pointer */
1971 mono_mb_emit_ldloc (mb, src_var);
1972 mono_mb_emit_stloc (mb, 0);
1973 /* restore the old dst pointer */
1974 mono_mb_emit_ldloc (mb, dst_var);
1975 mono_mb_emit_stloc (mb, 1);
1980 mono_mb_emit_add_to_local (mb, 0, usize);
1981 mono_mb_emit_add_to_local (mb, 1, msize);
1983 mono_mb_emit_add_to_local (mb, 0, msize);
1984 mono_mb_emit_add_to_local (mb, 1, usize);
1990 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
1992 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
1996 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
1998 /* Call DestroyStructure */
1999 /* FIXME: Only do this if needed */
2000 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2001 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2002 mono_mb_emit_ldloc (mb, struct_var);
2003 mono_mb_emit_icall (mb, mono_struct_delete_old);
2007 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2009 int pos_noabort, pos_noex;
2011 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2012 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2013 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2014 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2016 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2017 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2019 mono_mb_emit_icall (mb, checkpoint_func);
2020 /* Throw the exception returned by the checkpoint function, if any */
2021 mono_mb_emit_byte (mb, CEE_DUP);
2022 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2023 mono_mb_emit_byte (mb, CEE_THROW);
2024 mono_mb_patch_branch (mb, pos_noex);
2025 mono_mb_emit_byte (mb, CEE_POP);
2027 mono_mb_patch_branch (mb, pos_noabort);
2031 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2033 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2036 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2040 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2042 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2046 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2048 emit_thread_interrupt_checkpoint (mb);
2052 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2054 emit_thread_force_interrupt_checkpoint (mb);
2057 #endif /* DISABLE_JIT */
2059 static MonoAsyncResult *
2060 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2062 MonoMulticastDelegate *mcast_delegate;
2066 g_assert (delegate);
2067 mcast_delegate = (MonoMulticastDelegate *) delegate;
2068 if (mcast_delegate->delegates != NULL)
2069 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2071 #ifndef DISABLE_REMOTING
2072 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2074 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2075 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2077 /* If the target is a proxy, make a direct call. Is proxy's work
2078 // to make the call asynchronous.
2080 MonoMethodMessage *msg;
2081 MonoDelegate *async_callback;
2083 MonoAsyncResult *ares;
2085 MonoArray *out_args;
2086 method = delegate->method;
2088 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2089 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2090 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2091 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2092 MONO_OBJECT_SETREF (msg, async_result, ares);
2093 msg->call_type = CallType_BeginInvoke;
2096 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2098 mono_raise_exception ((MonoException *) exc);
2104 klass = delegate->object.vtable->klass;
2106 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2108 method = mono_get_delegate_invoke (klass);
2111 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2117 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2119 int i, params_var, tmp_var;
2121 /* allocate local (pointer) *params[] */
2122 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2123 /* allocate local (pointer) tmp */
2124 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2126 /* alloate space on stack to store an array of pointers to the arguments */
2127 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2128 mono_mb_emit_byte (mb, CEE_PREFIX1);
2129 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2130 mono_mb_emit_stloc (mb, params_var);
2133 mono_mb_emit_ldloc (mb, params_var);
2134 mono_mb_emit_stloc (mb, tmp_var);
2136 if (save_this && sig->hasthis) {
2137 mono_mb_emit_ldloc (mb, tmp_var);
2138 mono_mb_emit_ldarg_addr (mb, 0);
2139 mono_mb_emit_byte (mb, CEE_STIND_I);
2140 /* tmp = tmp + sizeof (gpointer) */
2141 if (sig->param_count)
2142 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2146 for (i = 0; i < sig->param_count; i++) {
2147 mono_mb_emit_ldloc (mb, tmp_var);
2148 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2149 mono_mb_emit_byte (mb, CEE_STIND_I);
2150 /* tmp = tmp + sizeof (gpointer) */
2151 if (i < (sig->param_count - 1))
2152 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2158 #endif /* DISABLE_JIT */
2161 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2165 GString *res = g_string_new ("");
2168 g_string_append (res, prefix);
2169 g_string_append_c (res, '_');
2172 mono_type_get_desc (res, sig->ret, FALSE);
2175 g_string_append (res, "__this__");
2177 for (i = 0; i < sig->param_count; ++i) {
2178 g_string_append_c (res, '_');
2179 mono_type_get_desc (res, sig->params [i], FALSE);
2182 g_string_free (res, FALSE);
2187 * mono_marshal_get_string_encoding:
2189 * Return the string encoding which should be used for a given parameter.
2191 static MonoMarshalNative
2192 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2194 /* First try the parameter marshal info */
2196 if (spec->native == MONO_NATIVE_LPARRAY) {
2197 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2198 return spec->data.array_data.elem_type;
2201 return spec->native;
2205 return MONO_NATIVE_LPSTR;
2207 /* Then try the method level marshal info */
2208 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2209 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2210 return MONO_NATIVE_LPSTR;
2211 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2212 return MONO_NATIVE_LPWSTR;
2213 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2215 return MONO_NATIVE_LPWSTR;
2217 return MONO_NATIVE_LPSTR;
2220 return MONO_NATIVE_LPSTR;
2224 static MonoMarshalConv
2225 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2227 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2230 case MONO_NATIVE_LPWSTR:
2231 return MONO_MARSHAL_CONV_STR_LPWSTR;
2232 case MONO_NATIVE_LPSTR:
2233 case MONO_NATIVE_VBBYREFSTR:
2234 return MONO_MARSHAL_CONV_STR_LPSTR;
2235 case MONO_NATIVE_LPTSTR:
2236 return MONO_MARSHAL_CONV_STR_LPTSTR;
2237 case MONO_NATIVE_BSTR:
2238 return MONO_MARSHAL_CONV_STR_BSTR;
2240 return (MonoMarshalConv)-1;
2244 static MonoMarshalConv
2245 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2247 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2250 case MONO_NATIVE_LPWSTR:
2251 return MONO_MARSHAL_CONV_SB_LPWSTR;
2253 case MONO_NATIVE_LPSTR:
2254 return MONO_MARSHAL_CONV_SB_LPSTR;
2256 case MONO_NATIVE_LPTSTR:
2257 return MONO_MARSHAL_CONV_SB_LPTSTR;
2260 return (MonoMarshalConv)-1;
2264 static MonoMarshalConv
2265 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2267 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2272 case MONO_NATIVE_LPWSTR:
2274 return MONO_MARSHAL_CONV_LPWSTR_STR;
2275 case MONO_NATIVE_LPSTR:
2276 case MONO_NATIVE_VBBYREFSTR:
2277 return MONO_MARSHAL_CONV_LPSTR_STR;
2278 case MONO_NATIVE_LPTSTR:
2279 return MONO_MARSHAL_CONV_LPTSTR_STR;
2280 case MONO_NATIVE_BSTR:
2281 return MONO_MARSHAL_CONV_BSTR_STR;
2283 return (MonoMarshalConv)-1;
2287 static MonoMarshalConv
2288 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2290 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2295 case MONO_NATIVE_LPWSTR:
2297 * mono_string_builder_to_utf16 does not allocate a
2298 * new buffer, so no need to free it.
2301 return MONO_MARSHAL_CONV_LPWSTR_SB;
2302 case MONO_NATIVE_LPSTR:
2303 return MONO_MARSHAL_CONV_LPSTR_SB;
2305 case MONO_NATIVE_LPTSTR:
2306 return MONO_MARSHAL_CONV_LPTSTR_SB;
2309 return (MonoMarshalConv)-1;
2314 * Return whenever a field of a native structure or an array member needs to
2318 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2320 MonoMarshalNative encoding;
2323 case MONO_TYPE_VALUETYPE:
2324 /* FIXME: Optimize this */
2326 case MONO_TYPE_OBJECT:
2327 case MONO_TYPE_CLASS:
2328 if (t->data.klass == mono_defaults.stringbuilder_class) {
2330 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2334 case MONO_TYPE_STRING:
2335 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2336 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2343 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2346 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2349 mono_marshal_lock ();
2352 g_hash_table_new (hash_func, equal_func);
2353 mono_memory_barrier ();
2356 mono_marshal_unlock ();
2362 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2364 return get_cache (var, hash_func, equal_func);
2368 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2372 mono_marshal_lock ();
2373 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2374 mono_marshal_unlock ();
2381 * Create a MonoMethod from MB, set INFO as wrapper info.
2384 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2385 int max_stack, WrapperInfo *info)
2389 res = mono_mb_create_method (mb, sig, max_stack);
2391 mono_marshal_set_wrapper_info (res, info);
2395 /* Create the method from the builder and place it in the cache */
2397 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2398 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2399 int max_stack, WrapperInfo *info, gboolean *out_found)
2406 mono_marshal_lock ();
2407 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2408 mono_marshal_unlock ();
2411 newm = mono_mb_create_method (mb, sig, max_stack);
2412 mono_marshal_lock ();
2413 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2416 g_hash_table_insert (cache, key, res);
2417 mono_marshal_set_wrapper_info (res, info);
2418 mono_marshal_unlock ();
2422 mono_marshal_unlock ();
2423 mono_free_method (newm);
2431 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2432 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2435 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2439 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2442 int wrapper_type = wrapper->wrapper_type;
2445 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2448 info = mono_marshal_get_wrapper_info (wrapper);
2450 switch (wrapper_type) {
2451 case MONO_WRAPPER_REMOTING_INVOKE:
2452 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2453 case MONO_WRAPPER_XDOMAIN_INVOKE:
2454 m = info->d.remoting.method;
2455 if (wrapper->is_inflated) {
2459 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2460 * contains an uninflated method.
2462 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2463 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2467 case MONO_WRAPPER_SYNCHRONIZED:
2468 m = info->d.synchronized.method;
2469 if (wrapper->is_inflated) {
2472 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2473 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2477 case MONO_WRAPPER_UNBOX:
2478 return info->d.unbox.method;
2479 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2480 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2481 return info->d.managed_to_native.method;
2484 case MONO_WRAPPER_RUNTIME_INVOKE:
2485 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2486 return info->d.runtime_invoke.method;
2495 * mono_marshal_get_wrapper_info:
2497 * Retrieve the WrapperInfo structure associated with WRAPPER.
2500 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2502 g_assert (wrapper->wrapper_type);
2504 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2508 * mono_marshal_set_wrapper_info:
2510 * Set the WrapperInfo structure associated with the wrapper
2511 * method METHOD to INFO.
2514 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2518 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2521 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2526 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2530 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2531 info->subtype = subtype;
2536 * get_wrapper_target_class:
2538 * Return the class where a wrapper method should be placed.
2541 get_wrapper_target_class (MonoImage *image)
2548 * - can't put all wrappers into an mscorlib class, because they reference
2549 * metadata (signature) so they should be put into the same image as the
2550 * method they wrap, so they are unloaded together.
2551 * - putting them into a class with a type initalizer could cause the
2552 * initializer to be executed which can be a problem if the wrappers are
2554 * - putting them into an inflated class can cause problems if the the
2555 * class is deleted because it references an image which is unloaded.
2556 * To avoid these problems, we put the wrappers into the <Module> class of
2559 if (image_is_dynamic (image)) {
2560 klass = ((MonoDynamicImage*)image)->wrappers_type;
2562 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2563 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2571 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2572 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2576 * check_generic_wrapper_cache:
2578 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2579 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2580 * generic method definition.
2583 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2586 MonoMethod *inst, *def;
2587 MonoGenericContext *ctx;
2589 g_assert (orig_method->is_inflated);
2590 ctx = mono_method_get_context (orig_method);
2593 * Look for the instance
2595 res = mono_marshal_find_in_cache (cache, key);
2600 * Look for the definition
2602 def = mono_marshal_find_in_cache (cache, def_key);
2605 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2606 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2608 mono_memory_barrier ();
2609 mono_marshal_lock ();
2610 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2612 g_hash_table_insert (cache, key, inst);
2615 mono_marshal_unlock ();
2622 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2625 MonoMethod *inst, *res;
2628 * We use the same cache for the generic definition and the instances.
2630 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2631 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2632 mono_memory_barrier ();
2633 mono_marshal_lock ();
2634 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2636 g_hash_table_insert (cache, key, inst);
2639 mono_marshal_unlock ();
2644 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2648 MonoMethod *inst, *def;
2651 * Look for the instance
2653 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2658 * Look for the definition
2660 def = mono_marshal_find_in_cache (cache, def_method->klass);
2662 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2663 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2666 mono_memory_barrier ();
2667 mono_marshal_lock ();
2668 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2670 g_hash_table_insert (cache, orig_method->klass, inst);
2673 mono_marshal_unlock ();
2680 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2683 MonoMethod *inst, *res;
2686 * We use the same cache for the generic definition and the instances.
2688 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2689 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2691 mono_memory_barrier ();
2692 mono_marshal_lock ();
2693 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2695 g_hash_table_insert (cache, orig_method->klass, inst);
2698 mono_marshal_unlock ();
2703 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2705 MonoMethodSignature *sig;
2706 MonoMethodBuilder *mb;
2711 MonoGenericContext *ctx = NULL;
2712 MonoMethod *orig_method = NULL;
2714 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2715 !strcmp (method->name, "BeginInvoke"));
2718 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2720 if (method->is_inflated) {
2721 orig_method = method;
2722 ctx = &((MonoMethodInflated*)method)->context;
2723 method = ((MonoMethodInflated*)method)->declaring;
2726 sig = mono_signature_no_pinvoke (method);
2732 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2733 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2737 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2738 (GHashFunc)mono_signature_hash,
2739 (GCompareFunc)mono_metadata_signature_equal);
2740 if ((res = mono_marshal_find_in_cache (cache, sig)))
2744 g_assert (sig->hasthis);
2746 name = mono_signature_to_name (sig, "begin_invoke");
2748 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2750 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2754 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2756 mono_mb_emit_ldarg (mb, 0);
2757 mono_mb_emit_ldloc (mb, params_var);
2758 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2759 mono_mb_emit_byte (mb, CEE_RET);
2764 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2765 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2767 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2775 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2777 MonoDomain *domain = mono_domain_get ();
2778 MonoAsyncResult *ares;
2779 MonoMethod *method = NULL;
2780 MonoMethodSignature *sig;
2781 MonoMethodMessage *msg;
2782 MonoObject *res, *exc;
2783 MonoArray *out_args;
2786 g_assert (delegate);
2788 if (!delegate->method_info) {
2789 g_assert (delegate->method);
2790 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2793 if (!delegate->method_info || !delegate->method_info->method)
2794 g_assert_not_reached ();
2796 klass = delegate->object.vtable->klass;
2798 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2799 g_assert (method != NULL);
2801 sig = mono_signature_no_pinvoke (method);
2803 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2805 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2807 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2811 if (ares->async_delegate != (MonoObject*)delegate) {
2812 mono_raise_exception (mono_get_exception_invalid_operation (
2813 "The IAsyncResult object provided does not match this delegate."));
2817 #ifndef DISABLE_REMOTING
2818 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2819 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2820 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2821 mono_message_init (domain, msg, delegate->method_info, NULL);
2822 msg->call_type = CallType_EndInvoke;
2823 MONO_OBJECT_SETREF (msg, async_result, ares);
2824 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2828 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2832 if (((MonoException*)exc)->stack_trace) {
2833 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2835 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2837 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2840 mono_raise_exception ((MonoException*)exc);
2843 mono_method_return_message_restore (method, params, out_args);
2850 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2852 MonoType *t = mono_type_get_underlying_type (return_type);
2854 if (return_type->byref)
2855 return_type = &mono_defaults.int_class->byval_arg;
2858 case MONO_TYPE_VOID:
2859 g_assert_not_reached ();
2862 case MONO_TYPE_STRING:
2863 case MONO_TYPE_CLASS:
2864 case MONO_TYPE_OBJECT:
2865 case MONO_TYPE_ARRAY:
2866 case MONO_TYPE_SZARRAY:
2870 case MONO_TYPE_BOOLEAN:
2873 case MONO_TYPE_CHAR:
2883 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2884 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2886 case MONO_TYPE_GENERICINST:
2887 if (!mono_type_generic_inst_is_valuetype (t))
2890 case MONO_TYPE_VALUETYPE: {
2891 MonoClass *klass = mono_class_from_mono_type (return_type);
2892 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2893 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2897 case MONO_TYPE_MVAR: {
2898 MonoClass *klass = mono_class_from_mono_type (return_type);
2899 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2903 g_warning ("type 0x%x not handled", return_type->type);
2904 g_assert_not_reached ();
2907 mono_mb_emit_byte (mb, CEE_RET);
2910 #endif /* DISABLE_JIT */
2913 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2915 MonoMethodSignature *sig;
2916 MonoMethodBuilder *mb;
2921 MonoGenericContext *ctx = NULL;
2922 MonoMethod *orig_method = NULL;
2924 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2925 !strcmp (method->name, "EndInvoke"));
2928 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2930 if (method->is_inflated) {
2931 orig_method = method;
2932 ctx = &((MonoMethodInflated*)method)->context;
2933 method = ((MonoMethodInflated*)method)->declaring;
2936 sig = mono_signature_no_pinvoke (method);
2942 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
2943 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2947 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
2948 (GHashFunc)mono_signature_hash,
2949 (GCompareFunc)mono_metadata_signature_equal);
2950 if ((res = mono_marshal_find_in_cache (cache, sig)))
2954 g_assert (sig->hasthis);
2956 name = mono_signature_to_name (sig, "end_invoke");
2958 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2960 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2964 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2966 mono_mb_emit_ldarg (mb, 0);
2967 mono_mb_emit_ldloc (mb, params_var);
2968 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2970 if (sig->ret->type == MONO_TYPE_VOID) {
2971 mono_mb_emit_byte (mb, CEE_POP);
2972 mono_mb_emit_byte (mb, CEE_RET);
2974 mono_mb_emit_restore_result (mb, sig->ret);
2979 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2980 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2982 res = mono_mb_create_and_cache (cache, sig,
2983 mb, sig, sig->param_count + 16);
2992 MonoMethodSignature *sig;
2994 } SignaturePointerPair;
2997 signature_pointer_pair_hash (gconstpointer data)
2999 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3001 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3005 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3007 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3008 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3012 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3014 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3016 return pair->pointer == user_data;
3020 free_signature_pointer_pair (SignaturePointerPair *pair)
3026 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3028 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3030 MonoMethodBuilder *mb;
3033 gpointer cache_key = NULL;
3034 SignaturePointerPair key;
3035 SignaturePointerPair *new_key;
3036 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3037 int pos0, pos1, pos2;
3039 MonoClass *target_class = NULL;
3040 gboolean closed_over_null = FALSE;
3041 MonoGenericContext *ctx = NULL;
3042 MonoGenericContainer *container = NULL;
3043 MonoMethod *orig_method = NULL;
3045 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3049 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3050 !strcmp (method->name, "Invoke"));
3052 invoke_sig = sig = mono_signature_no_pinvoke (method);
3055 * If the delegate target is null, and the target method is not static, a virtual
3056 * call is made to that method with the first delegate argument as this. This is
3057 * a non-documented .NET feature.
3060 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3061 if (target_method->is_inflated) {
3062 MonoType *target_type;
3064 g_assert (method->signature->hasthis);
3065 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3066 mono_method_get_context (method));
3067 target_class = mono_class_from_mono_type (target_type);
3069 target_class = target_method->klass;
3072 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3075 if (static_method_with_first_arg_bound) {
3076 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3077 g_assert (!callvirt);
3078 invoke_sig = mono_method_signature (target_method);
3082 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3084 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3085 orig_method = method;
3086 ctx = &((MonoMethodInflated*)method)->context;
3087 method = ((MonoMethodInflated*)method)->declaring;
3089 container = mono_method_get_generic_container (method);
3091 container = method->klass->generic_container;
3092 g_assert (container);
3094 invoke_sig = sig = mono_signature_no_pinvoke (method);
3101 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3102 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3105 cache_key = method->klass;
3106 } else if (static_method_with_first_arg_bound) {
3107 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3108 (GHashFunc)mono_signature_hash,
3109 (GCompareFunc)mono_metadata_signature_equal);
3111 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3113 res = mono_marshal_find_in_cache (cache, invoke_sig);
3116 cache_key = invoke_sig;
3117 } else if (callvirt) {
3118 GHashTable **cache_ptr;
3120 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3122 /* We need to cache the signature+method pair */
3123 mono_marshal_lock ();
3125 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3127 key.sig = invoke_sig;
3128 key.pointer = target_method;
3129 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3130 mono_marshal_unlock ();
3134 // Inflated methods should not be in this cache because it's not stored on the imageset.
3135 g_assert (!method->is_inflated);
3136 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3137 (GHashFunc)mono_signature_hash,
3138 (GCompareFunc)mono_metadata_signature_equal);
3139 res = mono_marshal_find_in_cache (cache, sig);
3145 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3146 static_sig->hasthis = 0;
3147 if (!static_method_with_first_arg_bound)
3148 invoke_sig = static_sig;
3150 if (static_method_with_first_arg_bound)
3151 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3152 else if (closed_over_null)
3153 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3155 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3157 name = mono_signature_to_name (invoke_sig, "invoke");
3159 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3161 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3165 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3167 /* allocate local 0 (object) */
3168 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3169 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3170 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3171 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3172 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3175 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3177 g_assert (sig->hasthis);
3180 * {type: sig->ret} res;
3181 * if (delegates == null) {
3182 * return this.<target> ( args .. );
3184 * int i = 0, len = this.delegates.Length;
3186 * res = this.delegates [i].Invoke ( args .. );
3187 * } while (++i < len);
3192 /* this wrapper can be used in unmanaged-managed transitions */
3193 emit_thread_interrupt_checkpoint (mb);
3195 /* delegates = this.delegates */
3196 mono_mb_emit_ldarg (mb, 0);
3197 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3198 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3199 mono_mb_emit_stloc (mb, local_delegates);
3202 /* if (delegates == null) */
3203 mono_mb_emit_ldloc (mb, local_delegates);
3204 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3206 /* return target.<target_method|method_ptr> ( args .. ); */
3208 /* target = d.target; */
3209 mono_mb_emit_ldarg (mb, 0);
3210 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3211 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3212 mono_mb_emit_stloc (mb, local_target);
3214 /*static methods with bound first arg can have null target and still be bound*/
3215 if (!static_method_with_first_arg_bound) {
3216 /* if target != null */
3217 mono_mb_emit_ldloc (mb, local_target);
3218 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3220 /* then call this->method_ptr nonstatic */
3223 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3225 mono_mb_emit_ldloc (mb, local_target);
3226 for (i = 0; i < sig->param_count; ++i)
3227 mono_mb_emit_ldarg (mb, i + 1);
3228 mono_mb_emit_ldarg (mb, 0);
3229 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, rgctx));
3230 mono_mb_emit_byte (mb, CEE_LDIND_I);
3231 mono_mb_emit_ldarg (mb, 0);
3232 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3233 mono_mb_emit_byte (mb, CEE_LDIND_I);
3234 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3235 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3236 mono_mb_emit_byte (mb, CEE_RET);
3239 /* else [target == null] call this->method_ptr static */
3240 mono_mb_patch_branch (mb, pos0);
3244 if (!closed_over_null) {
3245 if (target_class->valuetype) {
3246 mono_mb_emit_ldarg (mb, 1);
3247 for (i = 1; i < sig->param_count; ++i)
3248 mono_mb_emit_ldarg (mb, i + 1);
3249 mono_mb_emit_op (mb, CEE_CALL, target_method);
3251 mono_mb_emit_ldarg (mb, 1);
3252 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3253 for (i = 1; i < sig->param_count; ++i)
3254 mono_mb_emit_ldarg (mb, i + 1);
3255 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3258 mono_mb_emit_byte (mb, CEE_LDNULL);
3259 for (i = 0; i < sig->param_count; ++i)
3260 mono_mb_emit_ldarg (mb, i + 1);
3261 mono_mb_emit_op (mb, CEE_CALL, target_method);
3264 if (static_method_with_first_arg_bound) {
3265 mono_mb_emit_ldloc (mb, local_target);
3266 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3267 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3269 for (i = 0; i < sig->param_count; ++i)
3270 mono_mb_emit_ldarg (mb, i + 1);
3271 mono_mb_emit_ldarg (mb, 0);
3272 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, rgctx));
3273 mono_mb_emit_byte (mb, CEE_LDIND_I);
3274 mono_mb_emit_ldarg (mb, 0);
3275 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3276 mono_mb_emit_byte (mb, CEE_LDIND_I);
3277 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3278 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3281 mono_mb_emit_byte (mb, CEE_RET);
3283 /* else [delegates != null] */
3284 mono_mb_patch_branch (mb, pos2);
3286 /* len = delegates.Length; */
3287 mono_mb_emit_ldloc (mb, local_delegates);
3288 mono_mb_emit_byte (mb, CEE_LDLEN);
3289 mono_mb_emit_byte (mb, CEE_CONV_I4);
3290 mono_mb_emit_stloc (mb, local_len);
3293 mono_mb_emit_icon (mb, 0);
3294 mono_mb_emit_stloc (mb, local_i);
3296 pos1 = mono_mb_get_label (mb);
3298 /* d = delegates [i]; */
3299 mono_mb_emit_ldloc (mb, local_delegates);
3300 mono_mb_emit_ldloc (mb, local_i);
3301 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3302 mono_mb_emit_stloc (mb, local_d);
3304 /* res = d.Invoke ( args .. ); */
3305 mono_mb_emit_ldloc (mb, local_d);
3306 for (i = 0; i < sig->param_count; i++)
3307 mono_mb_emit_ldarg (mb, i + 1);
3309 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3312 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3313 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3316 mono_mb_emit_stloc (mb, local_res);
3319 mono_mb_emit_add_to_local (mb, local_i, 1);
3322 mono_mb_emit_ldloc (mb, local_i);
3323 mono_mb_emit_ldloc (mb, local_len);
3324 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3328 mono_mb_emit_ldloc (mb, local_res);
3329 mono_mb_emit_byte (mb, CEE_RET);
3331 mb->skip_visibility = 1;
3332 #endif /* DISABLE_JIT */
3334 info = mono_wrapper_info_create (mb, subtype);
3339 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3340 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3341 } else if (callvirt) {
3342 new_key = g_new0 (SignaturePointerPair, 1);
3345 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3349 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3353 /* mono_method_print_code (res); */
3359 * the returned method invokes all methods in a multicast delegate.
3362 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3364 gboolean callvirt = FALSE;
3365 gboolean static_method_with_first_arg_bound = FALSE;
3366 MonoMethod *target_method = NULL;
3367 MonoMethodSignature *sig;
3369 sig = mono_signature_no_pinvoke (method);
3371 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3373 target_method = del->method;
3376 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3377 static_method_with_first_arg_bound = TRUE;
3378 target_method = del->method;
3381 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3385 MonoMethodSignature *ctor_sig;
3386 MonoMethodSignature *sig;
3389 /* protected by the marshal lock, contains CtorSigPair pointers */
3390 static GSList *strsig_list = NULL;
3392 static MonoMethodSignature *
3393 lookup_string_ctor_signature (MonoMethodSignature *sig)
3395 MonoMethodSignature *callsig;
3399 mono_marshal_lock ();
3401 for (item = strsig_list; item; item = item->next) {
3402 cs = (CtorSigPair *)item->data;
3403 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3404 * because it is lock-free.
3406 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3411 mono_marshal_unlock ();
3415 static MonoMethodSignature *
3416 add_string_ctor_signature (MonoMethod *method)
3418 MonoMethodSignature *callsig;
3421 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3422 callsig->ret = &mono_defaults.string_class->byval_arg;
3423 cs = g_new (CtorSigPair, 1);
3425 cs->ctor_sig = mono_method_signature (method);
3427 mono_marshal_lock ();
3428 strsig_list = g_slist_prepend (strsig_list, cs);
3429 mono_marshal_unlock ();
3434 * mono_marshal_get_string_ctor_signature:
3436 * Return the modified signature used by string ctors (they return the newly created
3439 MonoMethodSignature*
3440 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3442 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3444 sig = add_string_ctor_signature (method);
3450 get_runtime_invoke_type (MonoType *t, gboolean ret)
3453 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3455 /* Can't share this with 'I' as that needs another indirection */
3456 return &mono_defaults.int_class->this_arg;
3459 if (MONO_TYPE_IS_REFERENCE (t))
3460 return &mono_defaults.object_class->byval_arg;
3463 /* The result needs to be boxed */
3468 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3471 return &mono_defaults.sbyte_class->byval_arg;
3473 return &mono_defaults.int16_class->byval_arg;
3475 return &mono_defaults.int32_class->byval_arg;
3478 return &mono_defaults.int64_class->byval_arg;
3479 case MONO_TYPE_BOOLEAN:
3480 return &mono_defaults.byte_class->byval_arg;
3481 case MONO_TYPE_CHAR:
3482 return &mono_defaults.uint16_class->byval_arg;
3485 return &mono_defaults.int_class->byval_arg;
3486 case MONO_TYPE_VALUETYPE:
3487 if (t->data.klass->enumtype) {
3488 t = mono_class_enum_basetype (t->data.klass);
3498 * mono_marshal_get_runtime_invoke_sig:
3500 * Return a common signature used for sharing runtime invoke wrappers.
3502 static MonoMethodSignature*
3503 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3505 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3508 res->generic_param_count = 0;
3509 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3510 for (i = 0; i < res->param_count; ++i)
3511 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3517 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3519 /* Can't share wrappers which return a vtype since it needs to be boxed */
3520 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))
3523 return mono_metadata_signature_equal (sig1, sig2);
3531 * Emit the call to the wrapper method from a runtime invoke wrapper.
3534 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3535 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3537 gboolean virtual_, gboolean need_direct_wrapper)
3539 static MonoString *string_dummy = NULL;
3541 int *tmp_nullable_locals;
3542 gboolean void_ret = FALSE;
3543 gboolean string_ctor = method && method->string_ctor;
3545 /* to make it work with our special string constructors */
3546 if (!string_dummy) {
3547 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3548 string_dummy = mono_string_new_wrapper ("dummy");
3552 g_assert (sig->hasthis);
3553 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3558 if (mono_gc_is_moving ()) {
3559 mono_mb_emit_ptr (mb, &string_dummy);
3560 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3562 mono_mb_emit_ptr (mb, string_dummy);
3565 mono_mb_emit_ldarg (mb, 0);
3569 tmp_nullable_locals = g_new0 (int, sig->param_count);
3571 for (i = 0; i < sig->param_count; i++) {
3572 MonoType *t = sig->params [i];
3575 mono_mb_emit_ldarg (mb, 1);
3577 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3578 mono_mb_emit_byte (mb, CEE_ADD);
3582 mono_mb_emit_byte (mb, CEE_LDIND_I);
3583 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3584 * So to make this work we unbox it to a local variablee and push a reference to that.
3586 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3587 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3589 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3590 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3591 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3596 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3597 type = sig->params [i]->type;
3601 case MONO_TYPE_BOOLEAN:
3605 case MONO_TYPE_CHAR:
3614 mono_mb_emit_byte (mb, CEE_LDIND_I);
3615 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3617 case MONO_TYPE_STRING:
3618 case MONO_TYPE_CLASS:
3619 case MONO_TYPE_ARRAY:
3621 case MONO_TYPE_SZARRAY:
3622 case MONO_TYPE_OBJECT:
3623 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3625 case MONO_TYPE_GENERICINST:
3626 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3627 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3632 case MONO_TYPE_VALUETYPE:
3633 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3634 type = mono_class_enum_basetype (t->data.klass)->type;
3637 mono_mb_emit_byte (mb, CEE_LDIND_I);
3638 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3639 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3640 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3641 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3643 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3647 g_assert_not_reached ();
3652 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3653 } else if (need_direct_wrapper) {
3654 mono_mb_emit_op (mb, CEE_CALL, method);
3656 mono_mb_emit_ldarg (mb, 3);
3657 mono_mb_emit_calli (mb, callsig);
3660 if (sig->ret->byref) {
3662 g_assert_not_reached ();
3665 switch (sig->ret->type) {
3666 case MONO_TYPE_VOID:
3670 case MONO_TYPE_BOOLEAN:
3671 case MONO_TYPE_CHAR:
3684 case MONO_TYPE_VALUETYPE:
3685 case MONO_TYPE_TYPEDBYREF:
3686 case MONO_TYPE_GENERICINST:
3687 /* box value types */
3688 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3690 case MONO_TYPE_STRING:
3691 case MONO_TYPE_CLASS:
3692 case MONO_TYPE_ARRAY:
3693 case MONO_TYPE_SZARRAY:
3694 case MONO_TYPE_OBJECT:
3698 /* The result is an IntPtr */
3699 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3702 g_assert_not_reached ();
3706 mono_mb_emit_stloc (mb, loc_res);
3708 /* Convert back nullable-byref arguments */
3709 for (i = 0; i < sig->param_count; i++) {
3710 MonoType *t = sig->params [i];
3713 * Box the result and put it back into the array, the caller will have
3714 * to obtain it from there.
3716 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3717 mono_mb_emit_ldarg (mb, 1);
3718 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3719 mono_mb_emit_byte (mb, CEE_ADD);
3721 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3722 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3724 mono_mb_emit_byte (mb, CEE_STIND_REF);
3728 g_free (tmp_nullable_locals);
3732 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3733 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3734 gboolean virtual_, gboolean need_direct_wrapper)
3737 MonoExceptionClause *clause;
3738 int loc_res, loc_exc;
3740 /* The wrapper looks like this:
3746 * } catch (Exception e) {
3754 /* allocate local 0 (object) tmp */
3755 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3756 /* allocate local 1 (object) exc */
3757 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3759 /* *exc is assumed to be initialized to NULL by the caller */
3761 mono_mb_emit_byte (mb, CEE_LDARG_2);
3762 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3767 labels [1] = mono_mb_get_label (mb);
3768 emit_thread_force_interrupt_checkpoint (mb);
3769 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3771 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3773 /* Add a try clause around the call */
3774 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3775 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3776 clause->data.catch_class = mono_defaults.exception_class;
3777 clause->try_offset = labels [1];
3778 clause->try_len = mono_mb_get_label (mb) - labels [1];
3780 clause->handler_offset = mono_mb_get_label (mb);
3783 mono_mb_emit_stloc (mb, loc_exc);
3784 mono_mb_emit_byte (mb, CEE_LDARG_2);
3785 mono_mb_emit_ldloc (mb, loc_exc);
3786 mono_mb_emit_byte (mb, CEE_STIND_REF);
3788 mono_mb_emit_branch (mb, CEE_LEAVE);
3790 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3792 mono_mb_set_clauses (mb, 1, clause);
3794 mono_mb_patch_branch (mb, labels [2]);
3795 mono_mb_emit_ldloc (mb, loc_res);
3796 mono_mb_emit_byte (mb, CEE_RET);
3801 mono_mb_patch_branch (mb, labels [0]);
3802 emit_thread_force_interrupt_checkpoint (mb);
3803 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3805 mono_mb_emit_ldloc (mb, 0);
3806 mono_mb_emit_byte (mb, CEE_RET);
3811 * generates IL code for the runtime invoke function
3812 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3814 * we also catch exceptions if exc != null
3815 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3816 * it means that the compiled code for METHOD does not have to be looked up
3817 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3818 * its METHOD argument.
3821 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3823 MonoMethodSignature *sig, *csig, *callsig;
3824 MonoMethodBuilder *mb;
3825 GHashTable *cache = NULL;
3826 MonoClass *target_klass;
3827 MonoMethod *res = NULL;
3828 static MonoMethodSignature *cctor_signature = NULL;
3829 static MonoMethodSignature *finalize_signature = NULL;
3831 const char *param_names [16];
3832 gboolean need_direct_wrapper = FALSE;
3837 if (!cctor_signature) {
3838 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3839 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3841 if (!finalize_signature) {
3842 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3843 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3844 finalize_signature->hasthis = 1;
3848 need_direct_wrapper = TRUE;
3851 * Use a separate cache indexed by methods to speed things up and to avoid the
3852 * boundless mempool growth caused by the signature_dup stuff below.
3855 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3857 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3859 res = mono_marshal_find_in_cache (cache, method);
3863 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3864 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3866 * Array Get/Set/Address methods. The JIT implements them using inline code
3867 * so we need to create an invoke wrapper which calls the method directly.
3869 need_direct_wrapper = TRUE;
3872 if (method->string_ctor) {
3873 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3875 callsig = add_string_ctor_signature (method);
3876 /* Can't share this as we push a string as this */
3877 need_direct_wrapper = TRUE;
3879 if (method_is_dynamic (method))
3880 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3882 callsig = mono_method_signature (method);
3885 sig = mono_method_signature (method);
3887 target_klass = get_wrapper_target_class (method->klass->image);
3889 /* Try to share wrappers for non-corlib methods with simple signatures */
3890 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3891 callsig = cctor_signature;
3892 target_klass = mono_defaults.object_class;
3893 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3894 callsig = finalize_signature;
3895 target_klass = mono_defaults.object_class;
3898 if (need_direct_wrapper) {
3899 /* Already searched at the start */
3901 MonoMethodSignature *tmp_sig;
3903 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3904 GHashTable **cache_table = NULL;
3906 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3907 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
3909 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
3911 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
3912 (GCompareFunc)runtime_invoke_signature_equal);
3914 /* from mono_marshal_find_in_cache */
3915 mono_marshal_lock ();
3916 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3917 mono_marshal_unlock ();
3924 /* Make a copy of the signature from the image mempool */
3926 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3930 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3932 csig->ret = &mono_defaults.object_class->byval_arg;
3933 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3934 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3936 csig->params [0] = &mono_defaults.object_class->byval_arg;
3937 csig->params [1] = &mono_defaults.int_class->byval_arg;
3938 csig->params [2] = &mono_defaults.int_class->byval_arg;
3939 csig->params [3] = &mono_defaults.int_class->byval_arg;
3942 /* This is called from runtime code so it has to be cdecl */
3943 csig->call_convention = MONO_CALL_C;
3946 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
3947 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3951 param_names [0] = "this";
3952 param_names [1] = "params";
3953 param_names [2] = "exc";
3954 param_names [3] = "method";
3955 mono_mb_set_param_names (mb, param_names);
3957 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
3960 if (need_direct_wrapper) {
3962 mb->skip_visibility = 1;
3964 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3965 info->d.runtime_invoke.method = method;
3966 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3968 /* taken from mono_mb_create_and_cache */
3969 mono_marshal_lock ();
3970 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3971 mono_marshal_unlock ();
3973 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3974 info->d.runtime_invoke.sig = callsig;
3976 /* Somebody may have created it before us */
3979 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3981 mono_marshal_lock ();
3982 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3984 GHashTable *direct_cache;
3986 g_hash_table_insert (cache, callsig, res);
3987 /* Can't insert it into wrapper_hash since the key is a signature */
3988 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
3990 g_hash_table_insert (direct_cache, method, res);
3992 mono_free_method (newm);
3994 mono_marshal_unlock ();
3997 /* end mono_mb_create_and_cache */
4006 * mono_marshal_get_runtime_invoke_dynamic:
4008 * Return a method which can be used to invoke managed methods from native code
4010 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4011 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4012 * ARGS should point to an architecture specific structure containing
4013 * the arguments and space for the return value.
4014 * The other arguments are the same as for runtime_invoke (), except that
4015 * ARGS should contain the this argument too.
4016 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4017 * is only one copy of it, which is useful in full-aot.
4018 * The wrapper info for the wrapper is a WrapperInfo structure.
4021 mono_marshal_get_runtime_invoke_dynamic (void)
4023 static MonoMethod *method;
4024 MonoMethodSignature *csig;
4025 MonoExceptionClause *clause;
4026 MonoMethodBuilder *mb;
4034 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4036 csig->ret = &mono_defaults.void_class->byval_arg;
4037 csig->params [0] = &mono_defaults.int_class->byval_arg;
4038 csig->params [1] = &mono_defaults.int_class->byval_arg;
4039 csig->params [2] = &mono_defaults.int_class->byval_arg;
4040 csig->params [3] = &mono_defaults.int_class->byval_arg;
4042 name = g_strdup ("runtime_invoke_dynamic");
4043 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4047 /* allocate local 0 (object) tmp */
4048 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4049 /* allocate local 1 (object) exc */
4050 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4052 /* cond set *exc to null */
4053 mono_mb_emit_byte (mb, CEE_LDARG_1);
4054 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4055 mono_mb_emit_byte (mb, 3);
4056 mono_mb_emit_byte (mb, CEE_LDARG_1);
4057 mono_mb_emit_byte (mb, CEE_LDNULL);
4058 mono_mb_emit_byte (mb, CEE_STIND_REF);
4060 emit_thread_force_interrupt_checkpoint (mb);
4062 mono_mb_emit_byte (mb, CEE_LDARG_0);
4063 mono_mb_emit_byte (mb, CEE_LDARG_2);
4064 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4065 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4067 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4069 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4070 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4071 clause->try_len = mono_mb_get_label (mb);
4074 clause->data.filter_offset = mono_mb_get_label (mb);
4076 mono_mb_emit_byte (mb, CEE_POP);
4077 mono_mb_emit_byte (mb, CEE_LDARG_1);
4078 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4079 mono_mb_emit_byte (mb, CEE_PREFIX1);
4080 mono_mb_emit_byte (mb, CEE_CGT_UN);
4081 mono_mb_emit_byte (mb, CEE_PREFIX1);
4082 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4084 clause->handler_offset = mono_mb_get_label (mb);
4087 /* store exception */
4088 mono_mb_emit_stloc (mb, 1);
4090 mono_mb_emit_byte (mb, CEE_LDARG_1);
4091 mono_mb_emit_ldloc (mb, 1);
4092 mono_mb_emit_byte (mb, CEE_STIND_REF);
4094 mono_mb_emit_byte (mb, CEE_LDNULL);
4095 mono_mb_emit_stloc (mb, 0);
4097 /* Check for the abort exception */
4098 mono_mb_emit_ldloc (mb, 1);
4099 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4100 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4102 /* Delay the abort exception */
4103 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4105 mono_mb_patch_short_branch (mb, posna);
4106 mono_mb_emit_branch (mb, CEE_LEAVE);
4108 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4110 mono_mb_set_clauses (mb, 1, clause);
4113 mono_mb_patch_branch (mb, pos);
4114 //mono_mb_emit_ldloc (mb, 0);
4115 mono_mb_emit_byte (mb, CEE_RET);
4116 #endif /* DISABLE_JIT */
4118 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4120 mono_marshal_lock ();
4121 /* double-checked locking */
4123 method = mono_mb_create (mb, csig, 16, info);
4125 mono_marshal_unlock ();
4133 * mono_marshal_get_runtime_invoke_for_sig:
4135 * Return a runtime invoke wrapper for a given signature.
4138 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4140 MonoMethodSignature *csig, *callsig;
4141 MonoMethodBuilder *mb;
4143 GHashTable *cache = NULL;
4144 GHashTable **cache_table = NULL;
4145 MonoMethod *res = NULL;
4147 const char *param_names [16];
4150 /* A simplified version of mono_marshal_get_runtime_invoke */
4152 image = mono_defaults.corlib;
4154 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4156 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4158 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4159 (GCompareFunc)runtime_invoke_signature_equal);
4161 /* from mono_marshal_find_in_cache */
4162 mono_marshal_lock ();
4163 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4164 mono_marshal_unlock ();
4171 /* Make a copy of the signature from the image mempool */
4172 callsig = mono_metadata_signature_dup_full (image, callsig);
4174 csig = mono_metadata_signature_alloc (image, 4);
4175 csig->ret = &mono_defaults.object_class->byval_arg;
4176 csig->params [0] = &mono_defaults.object_class->byval_arg;
4177 csig->params [1] = &mono_defaults.int_class->byval_arg;
4178 csig->params [2] = &mono_defaults.int_class->byval_arg;
4179 csig->params [3] = &mono_defaults.int_class->byval_arg;
4182 /* This is called from runtime code so it has to be cdecl */
4183 csig->call_convention = MONO_CALL_C;
4186 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4187 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4191 param_names [0] = "this";
4192 param_names [1] = "params";
4193 param_names [2] = "exc";
4194 param_names [3] = "method";
4195 mono_mb_set_param_names (mb, param_names);
4197 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4200 /* taken from mono_mb_create_and_cache */
4201 mono_marshal_lock ();
4202 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4203 mono_marshal_unlock ();
4205 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4206 info->d.runtime_invoke.sig = callsig;
4208 /* Somebody may have created it before us */
4211 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4213 mono_marshal_lock ();
4214 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4217 g_hash_table_insert (cache, callsig, res);
4219 mono_free_method (newm);
4221 mono_marshal_unlock ();
4224 /* end mono_mb_create_and_cache */
4233 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4235 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4236 klass->name_space, klass->name);
4238 mono_mb_emit_exception_marshal_directive (mb, msg);
4243 * generates IL code for the icall wrapper (the generated method
4244 * calls the unmanaged code in func)
4245 * The wrapper info for the wrapper is a WrapperInfo structure.
4248 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4250 MonoMethodSignature *csig, *csig2;
4251 MonoMethodBuilder *mb;
4256 g_assert (sig->pinvoke);
4258 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4260 mb->method->save_lmf = 1;
4262 /* Add an explicit this argument */
4264 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4266 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4270 mono_mb_emit_byte (mb, CEE_LDARG_0);
4272 for (i = 0; i < sig->param_count; i++)
4273 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4275 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4276 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4277 mono_mb_emit_calli (mb, csig2);
4278 if (check_exceptions)
4279 emit_thread_interrupt_checkpoint (mb);
4280 mono_mb_emit_byte (mb, CEE_RET);
4283 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4285 if (csig->call_convention == MONO_CALL_VARARG)
4286 csig->call_convention = 0;
4288 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4289 info->d.icall.func = (gpointer)func;
4290 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4297 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4298 MonoMarshalSpec *spec,
4299 int conv_arg, MonoType **conv_arg_type,
4300 MarshalAction action)
4303 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4304 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4309 static MonoClass *ICustomMarshaler = NULL;
4310 static MonoMethod *cleanup_native, *cleanup_managed;
4311 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4312 MonoMethod *get_instance = NULL;
4313 MonoMethodBuilder *mb = m->mb;
4314 char *exception_msg = NULL;
4318 if (!ICustomMarshaler) {
4319 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
4321 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4322 goto handle_exception;
4325 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4326 g_assert (cleanup_native);
4327 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4328 g_assert (cleanup_managed);
4329 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4330 g_assert (marshal_managed_to_native);
4331 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4332 g_assert (marshal_native_to_managed);
4334 mono_memory_barrier ();
4335 ICustomMarshaler = klass;
4338 if (spec->data.custom_data.image)
4339 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4341 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4342 g_assert (mtype != NULL);
4343 mklass = mono_class_from_mono_type (mtype);
4344 g_assert (mklass != NULL);
4346 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4347 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4349 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4351 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4352 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4353 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4354 (get_sig->params [0]->type != MONO_TYPE_STRING))
4355 get_instance = NULL;
4359 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);
4362 /* Throw exception and emit compensation code if neccesary */
4363 if (exception_msg) {
4365 case MARSHAL_ACTION_CONV_IN:
4366 case MARSHAL_ACTION_CONV_RESULT:
4367 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4368 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4369 mono_mb_emit_byte (mb, CEE_POP);
4371 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4372 g_free (exception_msg);
4375 case MARSHAL_ACTION_PUSH:
4376 mono_mb_emit_byte (mb, CEE_LDNULL);
4384 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4385 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4388 case MARSHAL_ACTION_CONV_IN:
4390 case MONO_TYPE_CLASS:
4391 case MONO_TYPE_OBJECT:
4392 case MONO_TYPE_STRING:
4393 case MONO_TYPE_ARRAY:
4394 case MONO_TYPE_SZARRAY:
4395 case MONO_TYPE_VALUETYPE:
4399 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4400 g_assert_not_reached ();
4404 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4406 mono_mb_emit_byte (mb, CEE_LDNULL);
4407 mono_mb_emit_stloc (mb, conv_arg);
4409 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4412 /* Minic MS.NET behavior */
4413 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4416 /* Check for null */
4417 mono_mb_emit_ldarg (mb, argnum);
4419 mono_mb_emit_byte (mb, CEE_LDIND_I);
4420 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4422 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4424 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4426 mono_mb_emit_ldarg (mb, argnum);
4428 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4430 if (t->type == MONO_TYPE_VALUETYPE) {
4432 * Since we can't determine the type of the argument, we
4433 * will assume the unmanaged function takes a pointer.
4435 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4437 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4440 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4441 mono_mb_emit_stloc (mb, conv_arg);
4443 mono_mb_patch_branch (mb, pos2);
4446 case MARSHAL_ACTION_CONV_OUT:
4447 /* Check for null */
4448 mono_mb_emit_ldloc (mb, conv_arg);
4449 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4452 mono_mb_emit_ldarg (mb, argnum);
4454 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4456 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4458 mono_mb_emit_ldloc (mb, conv_arg);
4459 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4460 mono_mb_emit_byte (mb, CEE_STIND_REF);
4461 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4462 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4464 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4466 mono_mb_emit_ldloc (mb, conv_arg);
4467 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4469 /* We have nowhere to store the result */
4470 mono_mb_emit_byte (mb, CEE_POP);
4473 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4475 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4477 mono_mb_emit_ldloc (mb, conv_arg);
4479 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4481 mono_mb_patch_branch (mb, pos2);
4484 case MARSHAL_ACTION_PUSH:
4486 mono_mb_emit_ldloc_addr (mb, conv_arg);
4488 mono_mb_emit_ldloc (mb, conv_arg);
4491 case MARSHAL_ACTION_CONV_RESULT:
4492 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4494 mono_mb_emit_stloc (mb, 3);
4496 mono_mb_emit_ldloc (mb, 3);
4497 mono_mb_emit_stloc (mb, loc1);
4499 /* Check for null */
4500 mono_mb_emit_ldloc (mb, 3);
4501 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4503 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4505 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4506 mono_mb_emit_byte (mb, CEE_DUP);
4508 mono_mb_emit_ldloc (mb, 3);
4509 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4510 mono_mb_emit_stloc (mb, 3);
4512 mono_mb_emit_ldloc (mb, loc1);
4513 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4515 mono_mb_patch_branch (mb, pos2);
4518 case MARSHAL_ACTION_MANAGED_CONV_IN:
4519 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4521 mono_mb_emit_byte (mb, CEE_LDNULL);
4522 mono_mb_emit_stloc (mb, conv_arg);
4524 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4527 /* Check for null */
4528 mono_mb_emit_ldarg (mb, argnum);
4530 mono_mb_emit_byte (mb, CEE_LDIND_I);
4531 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4533 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4534 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4536 mono_mb_emit_ldarg (mb, argnum);
4538 mono_mb_emit_byte (mb, CEE_LDIND_I);
4540 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4541 mono_mb_emit_stloc (mb, conv_arg);
4543 mono_mb_patch_branch (mb, pos2);
4546 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4547 g_assert (!t->byref);
4549 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4551 mono_mb_emit_stloc (mb, 3);
4553 mono_mb_emit_ldloc (mb, 3);
4554 mono_mb_emit_stloc (mb, loc1);
4556 /* Check for null */
4557 mono_mb_emit_ldloc (mb, 3);
4558 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4560 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4561 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4562 mono_mb_emit_byte (mb, CEE_DUP);
4564 mono_mb_emit_ldloc (mb, 3);
4565 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4566 mono_mb_emit_stloc (mb, 3);
4568 mono_mb_emit_ldloc (mb, loc1);
4569 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4571 mono_mb_patch_branch (mb, pos2);
4574 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4576 /* Check for null */
4577 mono_mb_emit_ldloc (mb, conv_arg);
4578 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4581 mono_mb_emit_ldarg (mb, argnum);
4583 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4585 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4587 mono_mb_emit_ldloc (mb, conv_arg);
4588 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4589 mono_mb_emit_byte (mb, CEE_STIND_I);
4592 /* Call CleanUpManagedData */
4593 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4595 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4597 mono_mb_emit_ldloc (mb, conv_arg);
4598 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4600 mono_mb_patch_branch (mb, pos2);
4604 g_assert_not_reached ();
4612 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4613 MonoMarshalSpec *spec,
4614 int conv_arg, MonoType **conv_arg_type,
4615 MarshalAction action)
4618 MonoMethodBuilder *mb = m->mb;
4621 case MARSHAL_ACTION_CONV_IN: {
4622 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4624 g_assert (t->type == MONO_TYPE_OBJECT);
4625 g_assert (!t->byref);
4627 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4628 mono_mb_emit_ldarg (mb, argnum);
4629 mono_mb_emit_icon (mb, encoding);
4630 mono_mb_emit_icon (mb, t->attrs);
4631 mono_mb_emit_icall (mb, mono_marshal_asany);
4632 mono_mb_emit_stloc (mb, conv_arg);
4636 case MARSHAL_ACTION_PUSH:
4637 mono_mb_emit_ldloc (mb, conv_arg);
4640 case MARSHAL_ACTION_CONV_OUT: {
4641 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4643 mono_mb_emit_ldarg (mb, argnum);
4644 mono_mb_emit_ldloc (mb, conv_arg);
4645 mono_mb_emit_icon (mb, encoding);
4646 mono_mb_emit_icon (mb, t->attrs);
4647 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4652 g_assert_not_reached ();
4659 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4660 MonoMarshalSpec *spec,
4661 int conv_arg, MonoType **conv_arg_type,
4662 MarshalAction action)
4665 MonoMethodBuilder *mb = m->mb;
4666 MonoClass *klass, *date_time_class;
4669 klass = mono_class_from_mono_type (t);
4671 date_time_class = mono_class_from_name_cached (mono_defaults.corlib, "System", "DateTime");
4674 case MARSHAL_ACTION_CONV_IN:
4675 if (klass == date_time_class) {
4676 /* Convert it to an OLE DATE type */
4677 static MonoMethod *to_oadate;
4680 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4681 g_assert (to_oadate);
4683 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4686 mono_mb_emit_ldarg (mb, argnum);
4687 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4690 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4692 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4694 mono_mb_emit_ldarg_addr (mb, argnum);
4695 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4696 mono_mb_emit_stloc (mb, conv_arg);
4700 mono_mb_patch_branch (mb, pos);
4704 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4705 klass->blittable || klass->enumtype)
4708 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4710 /* store the address of the source into local variable 0 */
4712 mono_mb_emit_ldarg (mb, argnum);
4714 mono_mb_emit_ldarg_addr (mb, argnum);
4716 mono_mb_emit_stloc (mb, 0);
4718 /* allocate space for the native struct and
4719 * store the address into local variable 1 (dest) */
4720 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4721 mono_mb_emit_byte (mb, CEE_PREFIX1);
4722 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4723 mono_mb_emit_stloc (mb, conv_arg);
4726 mono_mb_emit_ldloc (mb, 0);
4727 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4730 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4732 mono_mb_emit_ldloc (mb, conv_arg);
4733 mono_mb_emit_stloc (mb, 1);
4735 /* emit valuetype conversion code */
4736 emit_struct_conv (mb, klass, FALSE);
4740 mono_mb_patch_branch (mb, pos);
4743 case MARSHAL_ACTION_PUSH:
4744 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4746 g_assert (!t->byref);
4748 /* Have to change the signature since the vtype is passed byref */
4749 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4751 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4752 klass->blittable || klass->enumtype)
4753 mono_mb_emit_ldarg_addr (mb, argnum);
4755 mono_mb_emit_ldloc (mb, conv_arg);
4759 if (klass == date_time_class) {
4761 mono_mb_emit_ldloc_addr (mb, conv_arg);
4763 mono_mb_emit_ldloc (mb, conv_arg);
4767 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4768 klass->blittable || klass->enumtype) {
4769 mono_mb_emit_ldarg (mb, argnum);
4772 mono_mb_emit_ldloc (mb, conv_arg);
4774 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4775 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4779 case MARSHAL_ACTION_CONV_OUT:
4780 if (klass == date_time_class) {
4781 /* Convert from an OLE DATE type */
4782 static MonoMethod *from_oadate;
4787 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4789 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4790 g_assert (from_oadate);
4792 mono_mb_emit_ldarg (mb, argnum);
4793 mono_mb_emit_ldloc (mb, conv_arg);
4794 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4795 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4800 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4801 klass->blittable || klass->enumtype)
4805 /* dst = argument */
4806 mono_mb_emit_ldarg (mb, argnum);
4807 mono_mb_emit_stloc (mb, 1);
4809 mono_mb_emit_ldloc (mb, 1);
4810 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4812 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4813 /* src = tmp_locals [i] */
4814 mono_mb_emit_ldloc (mb, conv_arg);
4815 mono_mb_emit_stloc (mb, 0);
4817 /* emit valuetype conversion code */
4818 emit_struct_conv (mb, klass, TRUE);
4822 emit_struct_free (mb, klass, conv_arg);
4825 mono_mb_patch_branch (mb, pos);
4828 case MARSHAL_ACTION_CONV_RESULT:
4829 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4831 mono_mb_emit_stloc (mb, 3);
4835 /* load pointer to returned value type */
4836 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4837 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4838 /* store the address of the source into local variable 0 */
4839 mono_mb_emit_stloc (mb, 0);
4841 mono_mb_emit_ldloc_addr (mb, 3);
4842 mono_mb_emit_stloc (mb, 1);
4844 /* emit valuetype conversion code */
4845 emit_struct_conv (mb, klass, TRUE);
4848 case MARSHAL_ACTION_MANAGED_CONV_IN:
4849 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4850 klass->blittable || klass->enumtype) {
4855 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4857 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4861 mono_mb_emit_ldarg (mb, argnum);
4863 mono_mb_emit_ldarg_addr (mb, argnum);
4864 mono_mb_emit_stloc (mb, 0);
4867 mono_mb_emit_ldloc (mb, 0);
4868 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4871 mono_mb_emit_ldloc_addr (mb, conv_arg);
4872 mono_mb_emit_stloc (mb, 1);
4874 /* emit valuetype conversion code */
4875 emit_struct_conv (mb, klass, TRUE);
4878 mono_mb_patch_branch (mb, pos);
4881 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4882 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4883 klass->blittable || klass->enumtype) {
4887 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4890 /* Check for null */
4891 mono_mb_emit_ldarg (mb, argnum);
4892 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4895 mono_mb_emit_ldloc_addr (mb, conv_arg);
4896 mono_mb_emit_stloc (mb, 0);
4899 mono_mb_emit_ldarg (mb, argnum);
4900 mono_mb_emit_stloc (mb, 1);
4902 /* emit valuetype conversion code */
4903 emit_struct_conv (mb, klass, FALSE);
4905 mono_mb_patch_branch (mb, pos2);
4908 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4909 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4910 klass->blittable || klass->enumtype) {
4911 mono_mb_emit_stloc (mb, 3);
4916 /* load pointer to returned value type */
4917 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4918 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4920 /* store the address of the source into local variable 0 */
4921 mono_mb_emit_stloc (mb, 0);
4922 /* allocate space for the native struct and
4923 * store the address into dst_ptr */
4924 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4925 m->retobj_class = klass;
4926 g_assert (m->retobj_var);
4927 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4928 mono_mb_emit_byte (mb, CEE_CONV_I);
4929 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
4930 mono_mb_emit_stloc (mb, 1);
4931 mono_mb_emit_ldloc (mb, 1);
4932 mono_mb_emit_stloc (mb, m->retobj_var);
4934 /* emit valuetype conversion code */
4935 emit_struct_conv (mb, klass, FALSE);
4939 g_assert_not_reached ();
4946 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4947 MonoMarshalSpec *spec,
4948 int conv_arg, MonoType **conv_arg_type,
4949 MarshalAction action)
4953 case MARSHAL_ACTION_CONV_IN:
4954 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4956 case MARSHAL_ACTION_MANAGED_CONV_IN:
4957 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4961 MonoMethodBuilder *mb = m->mb;
4962 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4963 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4967 case MARSHAL_ACTION_CONV_IN:
4968 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4969 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4972 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4975 mono_mb_emit_ldarg (mb, argnum);
4976 mono_mb_emit_byte (mb, CEE_LDIND_I);
4978 mono_mb_emit_ldarg (mb, argnum);
4982 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4983 mono_mb_emit_exception_marshal_directive (mb, msg);
4985 mono_mb_emit_icall (mb, conv_to_icall (conv));
4987 mono_mb_emit_stloc (mb, conv_arg);
4991 case MARSHAL_ACTION_CONV_OUT:
4992 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
4994 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
4995 mono_mb_emit_exception_marshal_directive (mb, msg);
4999 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5000 static MonoMethod *m;
5003 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5008 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5009 mono_mb_emit_exception_marshal_directive (mb, msg);
5014 * Have to allocate a new string with the same length as the original, and
5015 * copy the contents of the buffer pointed to by CONV_ARG into it.
5017 g_assert (t->byref);
5018 mono_mb_emit_ldarg (mb, argnum);
5019 mono_mb_emit_ldloc (mb, conv_arg);
5020 mono_mb_emit_ldarg (mb, argnum);
5021 mono_mb_emit_byte (mb, CEE_LDIND_I);
5022 mono_mb_emit_managed_call (mb, m, NULL);
5023 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5024 mono_mb_emit_byte (mb, CEE_STIND_REF);
5025 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5026 mono_mb_emit_ldarg (mb, argnum);
5027 mono_mb_emit_ldloc (mb, conv_arg);
5028 mono_mb_emit_icall (mb, conv_to_icall (conv));
5029 mono_mb_emit_byte (mb, CEE_STIND_REF);
5034 mono_mb_emit_ldloc (mb, conv_arg);
5035 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5036 mono_mb_emit_icall (mb, mono_free_bstr);
5038 mono_mb_emit_icall (mb, mono_marshal_free);
5042 case MARSHAL_ACTION_PUSH:
5043 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5044 mono_mb_emit_ldloc_addr (mb, conv_arg);
5046 mono_mb_emit_ldloc (mb, conv_arg);
5049 case MARSHAL_ACTION_CONV_RESULT:
5050 mono_mb_emit_stloc (mb, 0);
5052 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5054 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5055 mono_mb_emit_exception_marshal_directive (mb, msg);
5059 mono_mb_emit_ldloc (mb, 0);
5060 mono_mb_emit_icall (mb, conv_to_icall (conv));
5061 mono_mb_emit_stloc (mb, 3);
5063 /* free the string */
5064 mono_mb_emit_ldloc (mb, 0);
5065 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5066 mono_mb_emit_icall (mb, mono_free_bstr);
5068 mono_mb_emit_icall (mb, mono_marshal_free);
5071 case MARSHAL_ACTION_MANAGED_CONV_IN:
5072 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5074 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5077 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5081 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5083 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5084 mono_mb_emit_exception_marshal_directive (mb, msg);
5088 mono_mb_emit_ldarg (mb, argnum);
5090 mono_mb_emit_byte (mb, CEE_LDIND_I);
5091 mono_mb_emit_icall (mb, conv_to_icall (conv));
5092 mono_mb_emit_stloc (mb, conv_arg);
5095 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5098 mono_mb_emit_ldarg (mb, argnum);
5099 mono_mb_emit_ldloc (mb, conv_arg);
5100 mono_mb_emit_icall (mb, conv_to_icall (conv));
5101 mono_mb_emit_byte (mb, CEE_STIND_I);
5106 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5107 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5108 /* We need to make a copy so the caller is able to free it */
5109 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5111 mono_mb_emit_icall (mb, conv_to_icall (conv));
5112 mono_mb_emit_stloc (mb, 3);
5116 g_assert_not_reached ();
5124 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5125 MonoMarshalSpec *spec, int conv_arg,
5126 MonoType **conv_arg_type, MarshalAction action)
5129 if (action == MARSHAL_ACTION_CONV_IN)
5130 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5132 MonoMethodBuilder *mb = m->mb;
5135 case MARSHAL_ACTION_CONV_IN: {
5136 MonoType *intptr_type;
5137 int dar_release_slot, pos;
5139 intptr_type = &mono_defaults.int_class->byval_arg;
5140 conv_arg = mono_mb_add_local (mb, intptr_type);
5141 *conv_arg_type = intptr_type;
5143 if (!sh_dangerous_add_ref)
5144 init_safe_handle ();
5146 mono_mb_emit_ldarg (mb, argnum);
5147 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5148 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5150 mono_mb_patch_branch (mb, pos);
5153 * My tests in show that ref SafeHandles are not really
5154 * passed as ref objects. Instead a NULL is passed as the
5157 mono_mb_emit_icon (mb, 0);
5158 mono_mb_emit_stloc (mb, conv_arg);
5162 /* Create local to hold the ref parameter to DangerousAddRef */
5163 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5165 /* set release = false; */
5166 mono_mb_emit_icon (mb, 0);
5167 mono_mb_emit_stloc (mb, dar_release_slot);
5169 /* safehandle.DangerousAddRef (ref release) */
5170 mono_mb_emit_ldarg (mb, argnum);
5171 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5172 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5174 /* Pull the handle field from SafeHandle */
5175 mono_mb_emit_ldarg (mb, argnum);
5176 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5177 mono_mb_emit_byte (mb, CEE_LDIND_I);
5178 mono_mb_emit_stloc (mb, conv_arg);
5183 case MARSHAL_ACTION_PUSH:
5185 mono_mb_emit_ldloc_addr (mb, conv_arg);
5187 mono_mb_emit_ldloc (mb, conv_arg);
5190 case MARSHAL_ACTION_CONV_OUT: {
5191 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5192 int dar_release_slot = conv_arg + 1;
5195 if (!sh_dangerous_release)
5196 init_safe_handle ();
5202 * My tests indicate that ref SafeHandles parameters are not actually
5203 * passed by ref, but instead a new Handle is created regardless of
5204 * whether a change happens in the unmanaged side.
5206 * Also, the Handle is created before calling into unmanaged code,
5207 * but we do not support that mechanism (getting to the original
5208 * handle) and it makes no difference where we create this
5210 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5212 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5215 /* refval = new SafeHandleDerived ()*/
5216 mono_mb_emit_ldarg (mb, argnum);
5217 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5218 mono_mb_emit_byte (mb, CEE_STIND_REF);
5220 /* refval.handle = returned_handle */
5221 mono_mb_emit_ldarg (mb, argnum);
5222 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5223 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5224 mono_mb_emit_ldloc (mb, conv_arg);
5225 mono_mb_emit_byte (mb, CEE_STIND_I);
5227 mono_mb_emit_ldloc (mb, dar_release_slot);
5228 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5229 mono_mb_emit_ldarg (mb, argnum);
5230 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5231 mono_mb_patch_branch (mb, label_next);
5236 case MARSHAL_ACTION_CONV_RESULT: {
5237 MonoMethod *ctor = NULL;
5238 int intptr_handle_slot;
5240 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5241 mono_mb_emit_byte (mb, CEE_POP);
5242 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5246 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5248 mono_mb_emit_byte (mb, CEE_POP);
5249 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5252 /* Store the IntPtr results into a local */
5253 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5254 mono_mb_emit_stloc (mb, intptr_handle_slot);
5256 /* Create return value */
5257 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5258 mono_mb_emit_stloc (mb, 3);
5260 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5261 mono_mb_emit_ldloc (mb, 3);
5262 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5263 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5264 mono_mb_emit_byte (mb, CEE_STIND_I);
5268 case MARSHAL_ACTION_MANAGED_CONV_IN:
5269 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5272 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5273 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5276 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5277 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5280 printf ("Unhandled case for MarshalAction: %d\n", action);
5288 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5289 MonoMarshalSpec *spec, int conv_arg,
5290 MonoType **conv_arg_type, MarshalAction action)
5293 if (action == MARSHAL_ACTION_CONV_IN)
5294 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5296 MonoMethodBuilder *mb = m->mb;
5299 case MARSHAL_ACTION_CONV_IN: {
5300 MonoType *intptr_type;
5302 intptr_type = &mono_defaults.int_class->byval_arg;
5303 conv_arg = mono_mb_add_local (mb, intptr_type);
5304 *conv_arg_type = intptr_type;
5307 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5308 mono_mb_emit_exception_marshal_directive (mb, msg);
5311 mono_mb_emit_ldarg_addr (mb, argnum);
5312 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5313 mono_mb_emit_byte (mb, CEE_ADD);
5314 mono_mb_emit_byte (mb, CEE_LDIND_I);
5315 mono_mb_emit_stloc (mb, conv_arg);
5319 case MARSHAL_ACTION_PUSH:
5320 mono_mb_emit_ldloc (mb, conv_arg);
5323 case MARSHAL_ACTION_CONV_OUT: {
5324 /* no resource release required */
5328 case MARSHAL_ACTION_CONV_RESULT: {
5329 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5330 mono_mb_emit_exception_marshal_directive (mb, msg);
5334 case MARSHAL_ACTION_MANAGED_CONV_IN:
5335 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5338 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5339 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5342 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5343 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5346 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5354 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5355 MonoMarshalSpec *spec,
5356 int conv_arg, MonoType **conv_arg_type,
5357 MarshalAction action)
5360 if (action == MARSHAL_ACTION_CONV_IN)
5361 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5363 MonoMethodBuilder *mb = m->mb;
5364 MonoClass *klass = mono_class_from_mono_type (t);
5368 case MARSHAL_ACTION_CONV_IN:
5369 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5370 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5372 m->orig_conv_args [argnum] = 0;
5374 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5375 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5376 mono_mb_emit_exception_marshal_directive (mb, msg);
5380 if (klass->delegate) {
5382 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5383 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5384 mono_mb_emit_exception_marshal_directive (mb, msg);
5386 mono_mb_emit_byte (mb, CEE_LDNULL);
5387 mono_mb_emit_stloc (mb, conv_arg);
5389 mono_mb_emit_ldarg (mb, argnum);
5390 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5391 mono_mb_emit_stloc (mb, conv_arg);
5393 } else if (klass == mono_defaults.stringbuilder_class) {
5394 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5395 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5399 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5400 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5401 mono_mb_emit_exception_marshal_directive (mb, msg);
5407 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5411 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5412 mono_mb_emit_exception_marshal_directive (mb, msg);
5416 mono_mb_emit_ldarg (mb, argnum);
5418 mono_mb_emit_byte (mb, CEE_LDIND_I);
5420 mono_mb_emit_icall (mb, conv_to_icall (conv));
5421 mono_mb_emit_stloc (mb, conv_arg);
5422 } else if (klass->blittable) {
5423 mono_mb_emit_byte (mb, CEE_LDNULL);
5424 mono_mb_emit_stloc (mb, conv_arg);
5426 mono_mb_emit_ldarg (mb, argnum);
5427 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5429 mono_mb_emit_ldarg (mb, argnum);
5430 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5431 mono_mb_emit_stloc (mb, conv_arg);
5433 mono_mb_patch_branch (mb, pos);
5436 mono_mb_emit_byte (mb, CEE_LDNULL);
5437 mono_mb_emit_stloc (mb, conv_arg);
5440 /* we dont need any conversions for out parameters */
5441 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5444 mono_mb_emit_ldarg (mb, argnum);
5445 mono_mb_emit_byte (mb, CEE_LDIND_I);
5448 mono_mb_emit_ldarg (mb, argnum);
5449 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5450 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5453 /* store the address of the source into local variable 0 */
5454 mono_mb_emit_stloc (mb, 0);
5455 mono_mb_emit_ldloc (mb, 0);
5456 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5458 /* allocate space for the native struct and store the address */
5459 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5460 mono_mb_emit_byte (mb, CEE_PREFIX1);
5461 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5462 mono_mb_emit_stloc (mb, conv_arg);
5465 /* Need to store the original buffer so we can free it later */
5466 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5467 mono_mb_emit_ldloc (mb, conv_arg);
5468 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5471 /* set the src_ptr */
5472 mono_mb_emit_ldloc (mb, 0);
5473 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5474 mono_mb_emit_stloc (mb, 0);
5477 mono_mb_emit_ldloc (mb, conv_arg);
5478 mono_mb_emit_stloc (mb, 1);
5480 /* emit valuetype conversion code */
5481 emit_struct_conv (mb, klass, FALSE);
5483 mono_mb_patch_branch (mb, pos);
5487 case MARSHAL_ACTION_CONV_OUT:
5488 if (klass == mono_defaults.stringbuilder_class) {
5490 MonoMarshalNative encoding;
5491 MonoMarshalConv conv;
5493 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5494 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5496 g_assert (encoding != -1);
5499 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5503 mono_mb_emit_ldarg (mb, argnum);
5504 mono_mb_emit_ldloc (mb, conv_arg);
5507 case MONO_NATIVE_LPWSTR:
5508 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5510 case MONO_NATIVE_LPSTR:
5511 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5514 g_assert_not_reached ();
5517 mono_mb_emit_byte (mb, CEE_STIND_REF);
5519 mono_mb_emit_ldarg (mb, argnum);
5520 mono_mb_emit_ldloc (mb, conv_arg);
5522 mono_mb_emit_icall (mb, conv_to_icall (conv));
5526 mono_mb_emit_ldloc (mb, conv_arg);
5527 mono_mb_emit_icall (mb, mono_marshal_free);
5532 if (klass->delegate) {
5534 mono_mb_emit_ldarg (mb, argnum);
5535 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5536 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5537 mono_mb_emit_ldloc (mb, conv_arg);
5538 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5539 mono_mb_emit_byte (mb, CEE_STIND_REF);
5544 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5545 /* allocate a new object */
5546 mono_mb_emit_ldarg (mb, argnum);
5547 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5548 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5549 mono_mb_emit_byte (mb, CEE_STIND_REF);
5552 /* dst = *argument */
5553 mono_mb_emit_ldarg (mb, argnum);
5556 mono_mb_emit_byte (mb, CEE_LDIND_I);
5558 mono_mb_emit_stloc (mb, 1);
5560 mono_mb_emit_ldloc (mb, 1);
5561 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5563 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5564 mono_mb_emit_ldloc (mb, 1);
5565 mono_mb_emit_icon (mb, sizeof (MonoObject));
5566 mono_mb_emit_byte (mb, CEE_ADD);
5567 mono_mb_emit_stloc (mb, 1);
5569 /* src = tmp_locals [i] */
5570 mono_mb_emit_ldloc (mb, conv_arg);
5571 mono_mb_emit_stloc (mb, 0);
5573 /* emit valuetype conversion code */
5574 emit_struct_conv (mb, klass, TRUE);
5576 /* Free the structure returned by the native code */
5577 emit_struct_free (mb, klass, conv_arg);
5579 if (m->orig_conv_args [argnum]) {
5581 * If the native function changed the pointer, then free
5582 * the original structure plus the new pointer.
5584 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5585 mono_mb_emit_ldloc (mb, conv_arg);
5586 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5588 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5589 g_assert (m->orig_conv_args [argnum]);
5591 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5594 mono_mb_emit_ldloc (mb, conv_arg);
5595 mono_mb_emit_icall (mb, mono_marshal_free);
5597 mono_mb_patch_branch (mb, pos2);
5601 /* Free the original structure passed to native code */
5602 emit_struct_free (mb, klass, conv_arg);
5604 mono_mb_patch_branch (mb, pos);
5607 case MARSHAL_ACTION_PUSH:
5609 mono_mb_emit_ldloc_addr (mb, conv_arg);
5611 mono_mb_emit_ldloc (mb, conv_arg);
5614 case MARSHAL_ACTION_CONV_RESULT:
5615 if (klass->delegate) {
5616 g_assert (!t->byref);
5617 mono_mb_emit_stloc (mb, 0);
5618 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5619 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5620 mono_mb_emit_ldloc (mb, 0);
5621 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5622 mono_mb_emit_stloc (mb, 3);
5625 mono_mb_emit_stloc (mb, 0);
5627 /* Make a copy since emit_conv modifies local 0 */
5628 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5629 mono_mb_emit_ldloc (mb, 0);
5630 mono_mb_emit_stloc (mb, loc);
5632 mono_mb_emit_byte (mb, CEE_LDNULL);
5633 mono_mb_emit_stloc (mb, 3);
5635 mono_mb_emit_ldloc (mb, 0);
5636 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5638 /* allocate result object */
5640 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5641 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5642 mono_mb_emit_stloc (mb, 3);
5646 mono_mb_emit_ldloc (mb, 3);
5647 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5648 mono_mb_emit_stloc (mb, 1);
5650 /* emit conversion code */
5651 emit_struct_conv (mb, klass, TRUE);
5653 emit_struct_free (mb, klass, loc);
5655 /* Free the pointer allocated by unmanaged code */
5656 mono_mb_emit_ldloc (mb, loc);
5657 mono_mb_emit_icall (mb, mono_marshal_free);
5658 mono_mb_patch_branch (mb, pos);
5662 case MARSHAL_ACTION_MANAGED_CONV_IN:
5663 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5665 if (klass->delegate) {
5666 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5667 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5668 mono_mb_emit_ldarg (mb, argnum);
5670 mono_mb_emit_byte (mb, CEE_LDIND_I);
5671 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5672 mono_mb_emit_stloc (mb, conv_arg);
5676 if (klass == mono_defaults.stringbuilder_class) {
5677 MonoMarshalNative encoding;
5679 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5682 g_assert (encoding == MONO_NATIVE_LPSTR);
5684 g_assert (!t->byref);
5685 g_assert (encoding != -1);
5687 mono_mb_emit_ldarg (mb, argnum);
5688 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5689 mono_mb_emit_stloc (mb, conv_arg);
5693 /* The class can not have an automatic layout */
5694 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5695 mono_mb_emit_auto_layout_exception (mb, klass);
5699 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5700 mono_mb_emit_byte (mb, CEE_LDNULL);
5701 mono_mb_emit_stloc (mb, conv_arg);
5706 mono_mb_emit_ldarg (mb, argnum);
5710 /* Check for NULL and raise an exception */
5711 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5713 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5715 mono_mb_patch_branch (mb, pos2);
5716 mono_mb_emit_ldarg (mb, argnum);
5717 mono_mb_emit_byte (mb, CEE_LDIND_I);
5720 mono_mb_emit_stloc (mb, 0);
5722 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5723 mono_mb_emit_stloc (mb, conv_arg);
5725 mono_mb_emit_ldloc (mb, 0);
5726 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5728 /* Create and set dst */
5729 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5730 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5731 mono_mb_emit_stloc (mb, conv_arg);
5732 mono_mb_emit_ldloc (mb, conv_arg);
5733 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5734 mono_mb_emit_stloc (mb, 1);
5736 /* emit valuetype conversion code */
5737 emit_struct_conv (mb, klass, TRUE);
5739 mono_mb_patch_branch (mb, pos);
5742 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5743 if (klass->delegate) {
5745 mono_mb_emit_ldarg (mb, argnum);
5746 mono_mb_emit_ldloc (mb, conv_arg);
5747 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5748 mono_mb_emit_byte (mb, CEE_STIND_I);
5754 /* Check for null */
5755 mono_mb_emit_ldloc (mb, conv_arg);
5756 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5757 mono_mb_emit_ldarg (mb, argnum);
5758 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5759 mono_mb_emit_byte (mb, CEE_STIND_REF);
5760 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5762 mono_mb_patch_branch (mb, pos);
5765 mono_mb_emit_ldloc (mb, conv_arg);
5766 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5767 mono_mb_emit_stloc (mb, 0);
5769 /* Allocate and set dest */
5770 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5771 mono_mb_emit_byte (mb, CEE_CONV_I);
5772 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5773 mono_mb_emit_stloc (mb, 1);
5775 /* Update argument pointer */
5776 mono_mb_emit_ldarg (mb, argnum);
5777 mono_mb_emit_ldloc (mb, 1);
5778 mono_mb_emit_byte (mb, CEE_STIND_I);
5780 /* emit valuetype conversion code */
5781 emit_struct_conv (mb, klass, FALSE);
5783 mono_mb_patch_branch (mb, pos2);
5784 } else if (klass == mono_defaults.stringbuilder_class) {
5785 // FIXME: What to do here ?
5787 /* byval [Out] marshalling */
5789 /* FIXME: Handle null */
5792 mono_mb_emit_ldloc (mb, conv_arg);
5793 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5794 mono_mb_emit_stloc (mb, 0);
5797 mono_mb_emit_ldarg (mb, argnum);
5798 mono_mb_emit_stloc (mb, 1);
5800 /* emit valuetype conversion code */
5801 emit_struct_conv (mb, klass, FALSE);
5805 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5806 if (klass->delegate) {
5807 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5808 mono_mb_emit_stloc (mb, 3);
5812 /* The class can not have an automatic layout */
5813 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5814 mono_mb_emit_auto_layout_exception (mb, klass);
5818 mono_mb_emit_stloc (mb, 0);
5819 /* Check for null */
5820 mono_mb_emit_ldloc (mb, 0);
5821 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5822 mono_mb_emit_byte (mb, CEE_LDNULL);
5823 mono_mb_emit_stloc (mb, 3);
5824 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5826 mono_mb_patch_branch (mb, pos);
5829 mono_mb_emit_ldloc (mb, 0);
5830 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5831 mono_mb_emit_stloc (mb, 0);
5833 /* Allocate and set dest */
5834 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5835 mono_mb_emit_byte (mb, CEE_CONV_I);
5836 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5837 mono_mb_emit_byte (mb, CEE_DUP);
5838 mono_mb_emit_stloc (mb, 1);
5839 mono_mb_emit_stloc (mb, 3);
5841 emit_struct_conv (mb, klass, FALSE);
5843 mono_mb_patch_branch (mb, pos2);
5847 g_assert_not_reached ();
5858 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5859 MonoMarshalSpec *spec,
5860 int conv_arg, MonoType **conv_arg_type,
5861 MarshalAction action)
5863 MonoMethodBuilder *mb = m->mb;
5864 static MonoMethod *get_object_for_native_variant = NULL;
5865 static MonoMethod *get_native_variant_for_object = NULL;
5867 if (!get_object_for_native_variant)
5868 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5869 g_assert (get_object_for_native_variant);
5871 if (!get_native_variant_for_object)
5872 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5873 g_assert (get_native_variant_for_object);
5876 case MARSHAL_ACTION_CONV_IN: {
5877 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5880 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5882 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5884 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5887 mono_mb_emit_ldarg (mb, argnum);
5889 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5890 mono_mb_emit_ldloc_addr (mb, conv_arg);
5891 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5895 case MARSHAL_ACTION_CONV_OUT: {
5896 static MonoMethod *variant_clear = NULL;
5899 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5900 g_assert (variant_clear);
5903 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5904 mono_mb_emit_ldarg (mb, argnum);
5905 mono_mb_emit_ldloc_addr (mb, conv_arg);
5906 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5907 mono_mb_emit_byte (mb, CEE_STIND_REF);
5910 mono_mb_emit_ldloc_addr (mb, conv_arg);
5911 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5915 case MARSHAL_ACTION_PUSH:
5917 mono_mb_emit_ldloc_addr (mb, conv_arg);
5919 mono_mb_emit_ldloc (mb, conv_arg);
5922 case MARSHAL_ACTION_CONV_RESULT: {
5923 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5924 mono_mb_emit_exception_marshal_directive (mb, msg);
5928 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5929 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5932 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5934 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5936 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5940 mono_mb_emit_ldarg (mb, argnum);
5942 mono_mb_emit_ldarg_addr (mb, argnum);
5943 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5944 mono_mb_emit_stloc (mb, conv_arg);
5948 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5949 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5950 mono_mb_emit_ldloc (mb, conv_arg);
5951 mono_mb_emit_ldarg (mb, argnum);
5952 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5957 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5958 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5959 mono_mb_emit_exception_marshal_directive (mb, msg);
5964 g_assert_not_reached ();
5970 #endif /* DISABLE_COM */
5971 #endif /* DISABLE_JIT */
5974 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5976 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5977 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5979 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5981 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
5993 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
5994 MonoMarshalSpec *spec,
5995 int conv_arg, MonoType **conv_arg_type,
5996 MarshalAction action)
6000 case MARSHAL_ACTION_CONV_IN:
6001 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6003 case MARSHAL_ACTION_MANAGED_CONV_IN:
6004 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6008 MonoMethodBuilder *mb = m->mb;
6009 MonoClass *klass = mono_class_from_mono_type (t);
6010 gboolean need_convert, need_free;
6011 MonoMarshalNative encoding;
6013 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6016 case MARSHAL_ACTION_CONV_IN:
6017 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6018 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6020 if (klass->element_class->blittable) {
6021 mono_mb_emit_ldarg (mb, argnum);
6023 mono_mb_emit_byte (mb, CEE_LDIND_I);
6024 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6025 mono_mb_emit_stloc (mb, conv_arg);
6028 guint32 label1, label2, label3;
6029 int index_var, src_var, dest_ptr, esize;
6030 MonoMarshalConv conv;
6031 gboolean is_string = FALSE;
6033 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6035 eklass = klass->element_class;
6037 if (eklass == mono_defaults.string_class) {
6039 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6041 else if (eklass == mono_defaults.stringbuilder_class) {
6043 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6046 conv = (MonoMarshalConv)-1;
6048 if (is_string && conv == -1) {
6049 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6050 mono_mb_emit_exception_marshal_directive (mb, msg);
6054 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6055 mono_mb_emit_ldarg (mb, argnum);
6057 mono_mb_emit_byte (mb, CEE_LDIND_I);
6058 mono_mb_emit_stloc (mb, src_var);
6061 mono_mb_emit_ldloc (mb, src_var);
6062 mono_mb_emit_stloc (mb, conv_arg);
6063 mono_mb_emit_ldloc (mb, src_var);
6064 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6067 esize = sizeof (gpointer);
6068 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6069 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6071 esize = mono_class_native_size (eklass, NULL);
6073 /* allocate space for the native struct and store the address */
6074 mono_mb_emit_icon (mb, esize);
6075 mono_mb_emit_ldloc (mb, src_var);
6076 mono_mb_emit_byte (mb, CEE_LDLEN);
6078 if (eklass == mono_defaults.string_class) {
6079 /* Make the array bigger for the terminating null */
6080 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6081 mono_mb_emit_byte (mb, CEE_ADD);
6083 mono_mb_emit_byte (mb, CEE_MUL);
6084 mono_mb_emit_byte (mb, CEE_PREFIX1);
6085 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6086 mono_mb_emit_stloc (mb, conv_arg);
6088 mono_mb_emit_ldloc (mb, conv_arg);
6089 mono_mb_emit_stloc (mb, dest_ptr);
6091 /* Emit marshalling loop */
6092 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6093 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6094 mono_mb_emit_stloc (mb, index_var);
6095 label2 = mono_mb_get_label (mb);
6096 mono_mb_emit_ldloc (mb, index_var);
6097 mono_mb_emit_ldloc (mb, src_var);
6098 mono_mb_emit_byte (mb, CEE_LDLEN);
6099 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6101 /* Emit marshalling code */
6104 mono_mb_emit_ldloc (mb, dest_ptr);
6105 mono_mb_emit_ldloc (mb, src_var);
6106 mono_mb_emit_ldloc (mb, index_var);
6107 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6108 mono_mb_emit_icall (mb, conv_to_icall (conv));
6109 mono_mb_emit_byte (mb, CEE_STIND_I);
6111 /* set the src_ptr */
6112 mono_mb_emit_ldloc (mb, src_var);
6113 mono_mb_emit_ldloc (mb, index_var);
6114 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6115 mono_mb_emit_stloc (mb, 0);
6118 mono_mb_emit_ldloc (mb, dest_ptr);
6119 mono_mb_emit_stloc (mb, 1);
6121 /* emit valuetype conversion code */
6122 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6125 mono_mb_emit_add_to_local (mb, index_var, 1);
6126 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6128 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6130 mono_mb_patch_branch (mb, label3);
6132 if (eklass == mono_defaults.string_class) {
6133 /* Null terminate */
6134 mono_mb_emit_ldloc (mb, dest_ptr);
6135 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6136 mono_mb_emit_byte (mb, CEE_STIND_REF);
6139 mono_mb_patch_branch (mb, label1);
6144 case MARSHAL_ACTION_CONV_OUT:
6145 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6146 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);
6147 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6150 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6151 int param_num = spec->data.array_data.param_num;
6152 MonoType *param_type;
6154 param_type = m->sig->params [param_num];
6156 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6157 char *msg = g_strdup ("Not implemented.");
6158 mono_mb_emit_exception_marshal_directive (mb, msg);
6163 mono_mb_emit_ldarg (mb, argnum);
6165 /* Create the managed array */
6166 mono_mb_emit_ldarg (mb, param_num);
6167 if (m->sig->params [param_num]->byref)
6168 // FIXME: Support other types
6169 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6170 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6171 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6172 /* Store into argument */
6173 mono_mb_emit_byte (mb, CEE_STIND_I);
6177 if (need_convert || need_free) {
6178 /* FIXME: Optimize blittable case */
6180 guint32 label1, label2, label3;
6181 int index_var, src_ptr, loc, esize;
6183 eklass = klass->element_class;
6184 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6185 esize = sizeof (gpointer);
6186 else if (eklass == mono_defaults.char_class)
6187 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6189 esize = mono_class_native_size (eklass, NULL);
6190 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6191 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6194 mono_mb_emit_ldarg (mb, argnum);
6196 mono_mb_emit_byte (mb, CEE_LDIND_I);
6197 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6199 mono_mb_emit_ldloc (mb, conv_arg);
6200 mono_mb_emit_stloc (mb, src_ptr);
6202 /* Emit marshalling loop */
6203 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6204 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6205 mono_mb_emit_stloc (mb, index_var);
6206 label2 = mono_mb_get_label (mb);
6207 mono_mb_emit_ldloc (mb, index_var);
6208 mono_mb_emit_ldarg (mb, argnum);
6210 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6211 mono_mb_emit_byte (mb, CEE_LDLEN);
6212 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6214 /* Emit marshalling code */
6216 if (eklass == mono_defaults.stringbuilder_class) {
6217 gboolean need_free2;
6218 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6220 g_assert (conv != -1);
6223 mono_mb_emit_ldarg (mb, argnum);
6225 mono_mb_emit_byte (mb, CEE_LDIND_I);
6226 mono_mb_emit_ldloc (mb, index_var);
6227 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6230 mono_mb_emit_ldloc (mb, src_ptr);
6231 mono_mb_emit_byte (mb, CEE_LDIND_I);
6233 mono_mb_emit_icall (mb, conv_to_icall (conv));
6237 mono_mb_emit_ldloc (mb, src_ptr);
6238 mono_mb_emit_byte (mb, CEE_LDIND_I);
6240 mono_mb_emit_icall (mb, mono_marshal_free);
6243 else if (eklass == mono_defaults.string_class) {
6246 mono_mb_emit_ldloc (mb, src_ptr);
6247 mono_mb_emit_byte (mb, CEE_LDIND_I);
6249 mono_mb_emit_icall (mb, mono_marshal_free);
6254 /* set the src_ptr */
6255 mono_mb_emit_ldloc (mb, src_ptr);
6256 mono_mb_emit_stloc (mb, 0);
6259 mono_mb_emit_ldarg (mb, argnum);
6261 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6262 mono_mb_emit_ldloc (mb, index_var);
6263 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6264 mono_mb_emit_stloc (mb, 1);
6266 /* emit valuetype conversion code */
6267 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6271 mono_mb_emit_ldloc (mb, src_ptr);
6272 mono_mb_emit_stloc (mb, loc);
6273 mono_mb_emit_ldloc (mb, loc);
6275 emit_struct_free (mb, eklass, loc);
6279 mono_mb_emit_add_to_local (mb, index_var, 1);
6280 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6282 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6284 mono_mb_patch_branch (mb, label1);
6285 mono_mb_patch_branch (mb, label3);
6288 if (klass->element_class->blittable) {
6289 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6291 mono_mb_emit_ldarg (mb, argnum);
6293 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6294 mono_mb_emit_ldloc (mb, conv_arg);
6295 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6300 case MARSHAL_ACTION_PUSH:
6302 mono_mb_emit_ldloc_addr (mb, conv_arg);
6304 mono_mb_emit_ldloc (mb, conv_arg);
6307 case MARSHAL_ACTION_CONV_RESULT:
6308 /* fixme: we need conversions here */
6309 mono_mb_emit_stloc (mb, 3);
6312 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6314 guint32 label1, label2, label3;
6315 int index_var, src_ptr, esize, param_num, num_elem;
6316 MonoMarshalConv conv;
6317 gboolean is_string = FALSE;
6319 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6320 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6323 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6324 mono_mb_emit_exception_marshal_directive (mb, msg);
6328 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6329 mono_mb_emit_exception_marshal_directive (mb, msg);
6332 if (spec->native != MONO_NATIVE_LPARRAY) {
6333 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6334 mono_mb_emit_exception_marshal_directive (mb, msg);
6338 /* FIXME: t is from the method which is wrapped, not the delegate type */
6339 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6341 param_num = spec->data.array_data.param_num;
6342 num_elem = spec->data.array_data.num_elem;
6343 if (spec->data.array_data.elem_mult == 0)
6344 /* param_num is not specified */
6347 if (param_num == -1) {
6348 if (num_elem <= 0) {
6349 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6350 mono_mb_emit_exception_marshal_directive (mb, msg);
6355 /* FIXME: Optimize blittable case */
6357 eklass = klass->element_class;
6358 if (eklass == mono_defaults.string_class) {
6360 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6362 else if (eklass == mono_defaults.stringbuilder_class) {
6364 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6367 conv = (MonoMarshalConv)-1;
6369 mono_marshal_load_type_info (eklass);
6372 esize = sizeof (gpointer);
6374 esize = mono_class_native_size (eklass, NULL);
6375 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6377 mono_mb_emit_byte (mb, CEE_LDNULL);
6378 mono_mb_emit_stloc (mb, conv_arg);
6380 /* Check param index */
6381 if (param_num != -1) {
6382 if (param_num >= m->sig->param_count) {
6383 char *msg = g_strdup ("Array size control parameter index is out of range.");
6384 mono_mb_emit_exception_marshal_directive (mb, msg);
6387 switch (m->sig->params [param_num]->type) {
6400 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6401 mono_mb_emit_exception_marshal_directive (mb, msg);
6408 mono_mb_emit_ldarg (mb, argnum);
6409 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6411 mono_mb_emit_ldarg (mb, argnum);
6412 mono_mb_emit_stloc (mb, src_ptr);
6414 /* Create managed array */
6416 * The LPArray marshalling spec says that sometimes param_num starts
6417 * from 1, sometimes it starts from 0. But MS seems to allways start
6421 if (param_num == -1) {
6422 mono_mb_emit_icon (mb, num_elem);
6424 mono_mb_emit_ldarg (mb, param_num);
6426 mono_mb_emit_icon (mb, num_elem);
6427 mono_mb_emit_byte (mb, CEE_ADD);
6429 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6432 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6433 mono_mb_emit_stloc (mb, conv_arg);
6435 if (eklass->blittable) {
6436 mono_mb_emit_ldloc (mb, conv_arg);
6437 mono_mb_emit_byte (mb, CEE_CONV_I);
6438 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6439 mono_mb_emit_byte (mb, CEE_ADD);
6440 mono_mb_emit_ldarg (mb, argnum);
6441 mono_mb_emit_ldloc (mb, conv_arg);
6442 mono_mb_emit_byte (mb, CEE_LDLEN);
6443 mono_mb_emit_icon (mb, esize);
6444 mono_mb_emit_byte (mb, CEE_MUL);
6445 mono_mb_emit_byte (mb, CEE_PREFIX1);
6446 mono_mb_emit_byte (mb, CEE_CPBLK);
6450 /* Emit marshalling loop */
6451 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6452 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6453 mono_mb_emit_stloc (mb, index_var);
6454 label2 = mono_mb_get_label (mb);
6455 mono_mb_emit_ldloc (mb, index_var);
6456 mono_mb_emit_ldloc (mb, conv_arg);
6457 mono_mb_emit_byte (mb, CEE_LDLEN);
6458 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6460 /* Emit marshalling code */
6462 g_assert (conv != -1);
6464 mono_mb_emit_ldloc (mb, conv_arg);
6465 mono_mb_emit_ldloc (mb, index_var);
6467 mono_mb_emit_ldloc (mb, src_ptr);
6468 mono_mb_emit_byte (mb, CEE_LDIND_I);
6470 mono_mb_emit_icall (mb, conv_to_icall (conv));
6471 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6474 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6475 mono_mb_emit_exception_marshal_directive (mb, msg);
6479 mono_mb_emit_add_to_local (mb, index_var, 1);
6480 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6482 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6484 mono_mb_patch_branch (mb, label1);
6485 mono_mb_patch_branch (mb, label3);
6489 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6491 guint32 label1, label2, label3;
6492 int index_var, dest_ptr, esize, param_num, num_elem;
6493 MonoMarshalConv conv;
6494 gboolean is_string = FALSE;
6497 /* Already handled in CONV_IN */
6500 /* These are already checked in CONV_IN */
6501 g_assert (!t->byref);
6502 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6503 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6505 param_num = spec->data.array_data.param_num;
6506 num_elem = spec->data.array_data.num_elem;
6508 if (spec->data.array_data.elem_mult == 0)
6509 /* param_num is not specified */
6512 if (param_num == -1) {
6513 if (num_elem <= 0) {
6514 g_assert_not_reached ();
6518 /* FIXME: Optimize blittable case */
6520 eklass = klass->element_class;
6521 if (eklass == mono_defaults.string_class) {
6523 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6525 else if (eklass == mono_defaults.stringbuilder_class) {
6527 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6530 conv = (MonoMarshalConv)-1;
6532 mono_marshal_load_type_info (eklass);
6535 esize = sizeof (gpointer);
6537 esize = mono_class_native_size (eklass, NULL);
6539 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6542 mono_mb_emit_ldloc (mb, conv_arg);
6543 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6545 mono_mb_emit_ldarg (mb, argnum);
6546 mono_mb_emit_stloc (mb, dest_ptr);
6548 if (eklass->blittable) {
6550 mono_mb_emit_ldarg (mb, argnum);
6552 mono_mb_emit_ldloc (mb, conv_arg);
6553 mono_mb_emit_byte (mb, CEE_CONV_I);
6554 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6555 mono_mb_emit_byte (mb, CEE_ADD);
6557 mono_mb_emit_ldloc (mb, conv_arg);
6558 mono_mb_emit_byte (mb, CEE_LDLEN);
6559 mono_mb_emit_icon (mb, esize);
6560 mono_mb_emit_byte (mb, CEE_MUL);
6561 mono_mb_emit_byte (mb, CEE_PREFIX1);
6562 mono_mb_emit_byte (mb, CEE_CPBLK);
6566 /* Emit marshalling loop */
6567 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6568 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6569 mono_mb_emit_stloc (mb, index_var);
6570 label2 = mono_mb_get_label (mb);
6571 mono_mb_emit_ldloc (mb, index_var);
6572 mono_mb_emit_ldloc (mb, conv_arg);
6573 mono_mb_emit_byte (mb, CEE_LDLEN);
6574 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6576 /* Emit marshalling code */
6578 g_assert (conv != -1);
6581 mono_mb_emit_ldloc (mb, dest_ptr);
6584 mono_mb_emit_ldloc (mb, conv_arg);
6585 mono_mb_emit_ldloc (mb, index_var);
6587 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6589 mono_mb_emit_icall (mb, conv_to_icall (conv));
6590 mono_mb_emit_byte (mb, CEE_STIND_I);
6593 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6594 mono_mb_emit_exception_marshal_directive (mb, msg);
6598 mono_mb_emit_add_to_local (mb, index_var, 1);
6599 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6601 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6603 mono_mb_patch_branch (mb, label1);
6604 mono_mb_patch_branch (mb, label3);
6608 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6610 guint32 label1, label2, label3;
6611 int index_var, src, dest, esize;
6612 MonoMarshalConv conv = (MonoMarshalConv)-1;
6613 gboolean is_string = FALSE;
6615 g_assert (!t->byref);
6617 eklass = klass->element_class;
6619 mono_marshal_load_type_info (eklass);
6621 if (eklass == mono_defaults.string_class) {
6623 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6626 g_assert_not_reached ();
6630 esize = sizeof (gpointer);
6631 else if (eklass == mono_defaults.char_class)
6632 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6634 esize = mono_class_native_size (eklass, NULL);
6636 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6637 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6639 mono_mb_emit_stloc (mb, src);
6640 mono_mb_emit_ldloc (mb, src);
6641 mono_mb_emit_stloc (mb, 3);
6643 /* Check for null */
6644 mono_mb_emit_ldloc (mb, src);
6645 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6647 /* Allocate native array */
6648 mono_mb_emit_icon (mb, esize);
6649 mono_mb_emit_ldloc (mb, src);
6650 mono_mb_emit_byte (mb, CEE_LDLEN);
6652 if (eklass == mono_defaults.string_class) {
6653 /* Make the array bigger for the terminating null */
6654 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6655 mono_mb_emit_byte (mb, CEE_ADD);
6657 mono_mb_emit_byte (mb, CEE_MUL);
6658 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6659 mono_mb_emit_stloc (mb, dest);
6660 mono_mb_emit_ldloc (mb, dest);
6661 mono_mb_emit_stloc (mb, 3);
6663 /* Emit marshalling loop */
6664 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6665 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6666 mono_mb_emit_stloc (mb, index_var);
6667 label2 = mono_mb_get_label (mb);
6668 mono_mb_emit_ldloc (mb, index_var);
6669 mono_mb_emit_ldloc (mb, src);
6670 mono_mb_emit_byte (mb, CEE_LDLEN);
6671 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6673 /* Emit marshalling code */
6675 g_assert (conv != -1);
6678 mono_mb_emit_ldloc (mb, dest);
6681 mono_mb_emit_ldloc (mb, src);
6682 mono_mb_emit_ldloc (mb, index_var);
6684 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6686 mono_mb_emit_icall (mb, conv_to_icall (conv));
6687 mono_mb_emit_byte (mb, CEE_STIND_I);
6690 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6691 mono_mb_emit_exception_marshal_directive (mb, msg);
6695 mono_mb_emit_add_to_local (mb, index_var, 1);
6696 mono_mb_emit_add_to_local (mb, dest, esize);
6698 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6700 mono_mb_patch_branch (mb, label3);
6701 mono_mb_patch_branch (mb, label1);
6705 g_assert_not_reached ();
6712 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6715 return &mono_defaults.int32_class->byval_arg;
6717 switch (spec->native) {
6718 case MONO_NATIVE_I1:
6719 case MONO_NATIVE_U1:
6720 return &mono_defaults.byte_class->byval_arg;
6721 case MONO_NATIVE_VARIANTBOOL:
6722 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6723 return &mono_defaults.int16_class->byval_arg;
6724 case MONO_NATIVE_BOOLEAN:
6725 return &mono_defaults.int32_class->byval_arg;
6727 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6728 return &mono_defaults.int32_class->byval_arg;
6734 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6736 MonoClass* conv_arg_class = mono_defaults.int32_class;
6738 switch (spec->native) {
6739 case MONO_NATIVE_I1:
6740 case MONO_NATIVE_U1:
6741 conv_arg_class = mono_defaults.byte_class;
6742 if (ldop) *ldop = CEE_LDIND_I1;
6744 case MONO_NATIVE_VARIANTBOOL:
6745 conv_arg_class = mono_defaults.int16_class;
6746 if (ldop) *ldop = CEE_LDIND_I2;
6748 case MONO_NATIVE_BOOLEAN:
6751 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6754 return conv_arg_class;
6758 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6759 MonoMarshalSpec *spec,
6760 int conv_arg, MonoType **conv_arg_type,
6761 MarshalAction action)
6765 case MARSHAL_ACTION_CONV_IN:
6767 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6769 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6772 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6773 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6775 *conv_arg_type = &conv_arg_class->this_arg;
6777 *conv_arg_type = &conv_arg_class->byval_arg;
6783 MonoMethodBuilder *mb = m->mb;
6786 case MARSHAL_ACTION_CONV_IN: {
6787 MonoType *local_type;
6789 guint8 ldc_op = CEE_LDC_I4_1;
6791 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6793 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6795 *conv_arg_type = local_type;
6796 conv_arg = mono_mb_add_local (mb, local_type);
6798 mono_mb_emit_ldarg (mb, argnum);
6800 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6801 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6802 mono_mb_emit_byte (mb, ldc_op);
6803 mono_mb_emit_stloc (mb, conv_arg);
6804 mono_mb_patch_branch (mb, label_false);
6809 case MARSHAL_ACTION_CONV_OUT:
6811 int label_false, label_end;
6815 mono_mb_emit_ldarg (mb, argnum);
6816 mono_mb_emit_ldloc (mb, conv_arg);
6818 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6819 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6821 label_end = mono_mb_emit_branch (mb, CEE_BR);
6822 mono_mb_patch_branch (mb, label_false);
6823 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6824 mono_mb_patch_branch (mb, label_end);
6826 mono_mb_emit_byte (mb, CEE_STIND_I1);
6830 case MARSHAL_ACTION_PUSH:
6832 mono_mb_emit_ldloc_addr (mb, conv_arg);
6834 mono_mb_emit_ldloc (mb, conv_arg);
6836 mono_mb_emit_ldarg (mb, argnum);
6839 case MARSHAL_ACTION_CONV_RESULT:
6840 /* maybe we need to make sure that it fits within 8 bits */
6841 mono_mb_emit_stloc (mb, 3);
6844 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6845 MonoClass* conv_arg_class = mono_defaults.int32_class;
6846 guint8 ldop = CEE_LDIND_I4;
6847 int label_null, label_false;
6849 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6850 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6853 *conv_arg_type = &conv_arg_class->this_arg;
6855 *conv_arg_type = &conv_arg_class->byval_arg;
6858 mono_mb_emit_ldarg (mb, argnum);
6862 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6863 mono_mb_emit_ldarg (mb, argnum);
6864 mono_mb_emit_byte (mb, ldop);
6868 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6869 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6870 mono_mb_emit_stloc (mb, conv_arg);
6871 mono_mb_patch_branch (mb, label_false);
6874 mono_mb_patch_branch (mb, label_null);
6878 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6879 guint8 stop = CEE_STIND_I4;
6880 guint8 ldc_op = CEE_LDC_I4_1;
6881 int label_null,label_false, label_end;;
6886 switch (spec->native) {
6887 case MONO_NATIVE_I1:
6888 case MONO_NATIVE_U1:
6889 stop = CEE_STIND_I1;
6891 case MONO_NATIVE_VARIANTBOOL:
6892 stop = CEE_STIND_I2;
6893 ldc_op = CEE_LDC_I4_M1;
6901 mono_mb_emit_ldarg (mb, argnum);
6902 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6904 mono_mb_emit_ldarg (mb, argnum);
6905 mono_mb_emit_ldloc (mb, conv_arg);
6907 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6908 mono_mb_emit_byte (mb, ldc_op);
6909 label_end = mono_mb_emit_branch (mb, CEE_BR);
6911 mono_mb_patch_branch (mb, label_false);
6912 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6913 mono_mb_patch_branch (mb, label_end);
6915 mono_mb_emit_byte (mb, stop);
6916 mono_mb_patch_branch (mb, label_null);
6921 g_assert_not_reached ();
6928 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6929 MonoMarshalSpec *spec, int conv_arg,
6930 MonoType **conv_arg_type, MarshalAction action)
6933 MonoMethodBuilder *mb = m->mb;
6936 case MARSHAL_ACTION_CONV_IN:
6937 /* MS seems to allow this in some cases, ie. bxc #158 */
6939 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6940 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6941 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6946 case MARSHAL_ACTION_PUSH:
6947 mono_mb_emit_ldarg (mb, argnum);
6950 case MARSHAL_ACTION_CONV_RESULT:
6951 /* no conversions necessary */
6952 mono_mb_emit_stloc (mb, 3);
6963 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6964 MonoMarshalSpec *spec, int conv_arg,
6965 MonoType **conv_arg_type, MarshalAction action)
6968 MonoMethodBuilder *mb = m->mb;
6971 case MARSHAL_ACTION_PUSH:
6972 /* fixme: dont know how to marshal that. We cant simply
6973 * convert it to a one byte UTF8 character, because an
6974 * unicode character may need more that one byte in UTF8 */
6975 mono_mb_emit_ldarg (mb, argnum);
6978 case MARSHAL_ACTION_CONV_RESULT:
6979 /* fixme: we need conversions here */
6980 mono_mb_emit_stloc (mb, 3);
6991 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
6992 MonoMarshalSpec *spec, int conv_arg,
6993 MonoType **conv_arg_type, MarshalAction action)
6996 MonoMethodBuilder *mb = m->mb;
6999 case MARSHAL_ACTION_PUSH:
7000 mono_mb_emit_ldarg (mb, argnum);
7003 case MARSHAL_ACTION_CONV_RESULT:
7004 /* no conversions necessary */
7005 mono_mb_emit_stloc (mb, 3);
7016 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7017 MonoMarshalSpec *spec, int conv_arg,
7018 MonoType **conv_arg_type, MarshalAction action)
7020 /* Ensure that we have marshalling info for this param */
7021 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7023 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7024 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7026 if (spec && spec->native == MONO_NATIVE_ASANY)
7027 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7030 case MONO_TYPE_VALUETYPE:
7031 if (t->data.klass == mono_defaults.handleref_class)
7032 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7034 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7035 case MONO_TYPE_STRING:
7036 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7037 case MONO_TYPE_CLASS:
7038 case MONO_TYPE_OBJECT:
7040 if (spec && spec->native == MONO_NATIVE_STRUCT)
7041 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7043 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7044 spec->native == MONO_NATIVE_IDISPATCH ||
7045 spec->native == MONO_NATIVE_INTERFACE))
7046 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7047 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7048 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7049 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7050 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7053 if (mono_defaults.safehandle_class != NULL && t->data.klass &&
7054 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
7055 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7057 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7058 case MONO_TYPE_ARRAY:
7059 case MONO_TYPE_SZARRAY:
7060 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7061 case MONO_TYPE_BOOLEAN:
7062 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7064 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7065 case MONO_TYPE_CHAR:
7066 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7079 case MONO_TYPE_FNPTR:
7080 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7081 case MONO_TYPE_GENERICINST:
7082 if (mono_type_generic_inst_is_valuetype (t))
7083 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7085 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7093 * mono_marshal_emit_native_wrapper:
7094 * @image: the image to use for looking up custom marshallers
7095 * @sig: The signature of the native function
7096 * @piinfo: Marshalling information
7097 * @mspecs: Marshalling information
7098 * @aot: whenever the created method will be compiled by the AOT compiler
7099 * @method: if non-NULL, the pinvoke method to call
7100 * @check_exceptions: Whenever to check for pending exceptions after the native call
7101 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7103 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7106 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)
7108 EmitMarshalContext m;
7109 MonoMethodSignature *csig;
7111 int i, argnum, *tmp_locals;
7112 int type, param_shift = 0;
7113 static MonoMethodSignature *get_last_error_sig = NULL;
7114 int coop_gc_stack_dummy, coop_gc_var;
7116 memset (&m, 0, sizeof (m));
7121 /* we copy the signature, so that we can set pinvoke to 0 */
7123 /* The function address is passed as the first argument */
7124 g_assert (!sig->hasthis);
7127 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7135 /* we allocate local for use with emit_struct_conv() */
7136 /* allocate local 0 (pointer) src_ptr */
7137 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7138 /* allocate local 1 (pointer) dst_ptr */
7139 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7140 /* allocate local 2 (boolean) delete_old */
7141 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7143 /* delete_old = FALSE */
7144 mono_mb_emit_icon (mb, 0);
7145 mono_mb_emit_stloc (mb, 2);
7147 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7148 /* allocate local 3 to store the return value */
7149 mono_mb_add_local (mb, sig->ret);
7152 if (mono_threads_is_coop_enabled ()) {
7153 /* local 4, dummy local used to get a stack address for suspend funcs */
7154 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7155 /* local 5, the local to be used when calling the suspend funcs */
7156 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7159 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7160 /* Return type custom marshaling */
7162 * Since we can't determine the return type of the unmanaged function,
7163 * we assume it returns a pointer, and pass that pointer to
7164 * MarshalNativeToManaged.
7166 csig->ret = &mono_defaults.int_class->byval_arg;
7169 /* we first do all conversions */
7170 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7171 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7173 for (i = 0; i < sig->param_count; i ++) {
7174 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7177 /* push all arguments */
7180 mono_mb_emit_byte (mb, CEE_LDARG_0);
7182 for (i = 0; i < sig->param_count; i++) {
7183 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7186 if (mono_threads_is_coop_enabled ()) {
7187 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7188 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7189 mono_mb_emit_stloc (mb, coop_gc_var);
7192 /* call the native method */
7194 mono_mb_emit_byte (mb, CEE_LDARG_0);
7195 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7196 mono_mb_emit_byte (mb, CEE_LDIND_I);
7197 mono_mb_emit_calli (mb, csig);
7198 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7200 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7202 g_assert_not_reached ();
7207 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7208 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7209 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7210 mono_mb_emit_calli (mb, csig);
7212 mono_mb_emit_native_call (mb, csig, func);
7216 /* Set LastError if needed */
7217 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7218 if (!get_last_error_sig) {
7219 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7220 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7221 get_last_error_sig->pinvoke = 1;
7226 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7227 * clobber its value.
7229 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7230 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7232 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7236 if (mono_threads_is_coop_enabled ()) {
7237 mono_mb_emit_ldloc (mb, coop_gc_var);
7238 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7239 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7242 /* convert the result */
7243 if (!sig->ret->byref) {
7244 MonoMarshalSpec *spec = mspecs [0];
7245 type = sig->ret->type;
7247 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7248 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7253 case MONO_TYPE_VOID:
7255 case MONO_TYPE_VALUETYPE:
7256 klass = sig->ret->data.klass;
7257 if (klass->enumtype) {
7258 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7261 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7275 case MONO_TYPE_FNPTR:
7276 case MONO_TYPE_STRING:
7277 case MONO_TYPE_CLASS:
7278 case MONO_TYPE_OBJECT:
7279 case MONO_TYPE_BOOLEAN:
7280 case MONO_TYPE_ARRAY:
7281 case MONO_TYPE_SZARRAY:
7282 case MONO_TYPE_CHAR:
7284 case MONO_TYPE_GENERICINST:
7285 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7287 case MONO_TYPE_TYPEDBYREF:
7289 g_warning ("return type 0x%02x unknown", sig->ret->type);
7290 g_assert_not_reached ();
7294 mono_mb_emit_stloc (mb, 3);
7298 * Need to call this after converting the result since MONO_VTADDR needs
7299 * to be adjacent to the call instruction.
7301 if (check_exceptions)
7302 emit_thread_interrupt_checkpoint (mb);
7304 /* we need to convert byref arguments back and free string arrays */
7305 for (i = 0; i < sig->param_count; i++) {
7306 MonoType *t = sig->params [i];
7307 MonoMarshalSpec *spec = mspecs [i + 1];
7309 argnum = i + param_shift;
7311 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7312 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7317 case MONO_TYPE_STRING:
7318 case MONO_TYPE_VALUETYPE:
7319 case MONO_TYPE_CLASS:
7320 case MONO_TYPE_OBJECT:
7321 case MONO_TYPE_SZARRAY:
7322 case MONO_TYPE_BOOLEAN:
7323 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7330 if (!MONO_TYPE_IS_VOID(sig->ret))
7331 mono_mb_emit_ldloc (mb, 3);
7333 mono_mb_emit_byte (mb, CEE_RET);
7335 #endif /* DISABLE_JIT */
7338 * mono_marshal_get_native_wrapper:
7339 * @method: The MonoMethod to wrap.
7340 * @check_exceptions: Whenever to check for pending exceptions
7342 * generates IL code for the pinvoke wrapper (the generated method
7343 * calls the unmanaged code in piinfo->addr)
7344 * The wrapper info for the wrapper is a WrapperInfo structure.
7347 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7349 MonoMethodSignature *sig, *csig;
7350 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7351 MonoMethodBuilder *mb;
7352 MonoMarshalSpec **mspecs;
7355 gboolean pinvoke = FALSE;
7358 const char *exc_class = "MissingMethodException";
7359 const char *exc_arg = NULL;
7362 g_assert (method != NULL);
7363 g_assert (mono_method_signature (method)->pinvoke);
7365 GHashTable **cache_ptr;
7368 if (check_exceptions)
7369 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7371 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7373 if (check_exceptions)
7374 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7376 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7379 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7381 if ((res = mono_marshal_find_in_cache (cache, method)))
7384 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7385 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7389 return mono_cominterop_get_native_wrapper (method);
7391 g_assert_not_reached ();
7395 sig = mono_method_signature (method);
7397 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7398 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7401 if (!piinfo->addr) {
7403 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7404 exc_arg = "Method contains unsupported native code";
7406 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7408 piinfo->addr = mono_lookup_internal_call (method);
7412 /* hack - redirect certain string constructors to CreateString */
7413 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7414 g_assert (!pinvoke);
7415 g_assert (method->string_ctor);
7416 g_assert (sig->hasthis);
7418 /* CreateString returns a value */
7419 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7420 csig->ret = &mono_defaults.string_class->byval_arg;
7424 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7425 if (!strcmp ("CreateString", res->name) &&
7426 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7429 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7430 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7432 /* create a wrapper to preserve .ctor in stack trace */
7433 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7436 mono_mb_emit_byte (mb, CEE_LDARG_0);
7437 for (i = 1; i <= csig->param_count; i++)
7438 mono_mb_emit_ldarg (mb, i);
7439 mono_mb_emit_managed_call (mb, res, NULL);
7440 mono_mb_emit_byte (mb, CEE_RET);
7443 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7444 info->d.string_ctor.method = method;
7446 /* use native_wrapper_cache because internal calls are looked up there */
7447 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7448 csig->param_count + 1, info, NULL);
7455 /* exception will be thrown */
7456 piinfo->addr = NULL;
7457 g_warning ("cannot find CreateString for .ctor");
7460 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7462 mb->method->save_lmf = 1;
7465 * In AOT mode and embedding scenarios, it is possible that the icall is not
7466 * registered in the runtime doing the AOT compilation.
7468 if (!piinfo->addr && !aot) {
7470 mono_mb_emit_exception (mb, exc_class, exc_arg);
7472 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7473 info->d.managed_to_native.method = method;
7475 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7477 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7478 csig->param_count + 16, info, NULL);
7484 /* internal calls: we simply push all arguments and call the method (no conversions) */
7485 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7487 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7489 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7491 /* hack - string constructors returns a value */
7492 if (method->string_ctor)
7493 csig->ret = &mono_defaults.string_class->byval_arg;
7500 * Add a null check since public icalls can be called with 'call' which
7501 * does no such check.
7503 mono_mb_emit_byte (mb, CEE_LDARG_0);
7504 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7505 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7506 mono_mb_patch_branch (mb, pos);
7508 mono_mb_emit_byte (mb, CEE_LDARG_0);
7511 for (i = 0; i < sig->param_count; i++)
7512 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7515 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7516 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7517 mono_mb_emit_calli (mb, csig);
7519 g_assert (piinfo->addr);
7520 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7522 if (check_exceptions)
7523 emit_thread_interrupt_checkpoint (mb);
7524 mono_mb_emit_byte (mb, CEE_RET);
7526 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7527 info->d.managed_to_native.method = method;
7529 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7531 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7540 g_assert (piinfo->addr);
7543 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7544 mono_method_get_marshal_info (method, mspecs);
7546 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7548 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7549 info->d.managed_to_native.method = method;
7551 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7553 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7558 for (i = sig->param_count; i >= 0; i--)
7560 mono_metadata_free_marshal_spec (mspecs [i]);
7564 /* mono_method_print_code (res); */
7570 * mono_marshal_get_native_func_wrapper:
7571 * @image: The image to use for memory allocation and for looking up custom marshallers.
7572 * @sig: The signature of the function
7573 * @func: The native function to wrap
7575 * Returns a wrapper method around native functions, similar to the pinvoke
7579 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7580 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7582 MonoMethodSignature *csig;
7584 SignaturePointerPair key, *new_key;
7585 MonoMethodBuilder *mb;
7594 // Generic types are not safe to place in MonoImage caches.
7595 g_assert (!sig->is_inflated);
7597 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7598 if ((res = mono_marshal_find_in_cache (cache, &key)))
7601 name = g_strdup_printf ("wrapper_native_%p", func);
7602 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7603 mb->method->save_lmf = 1;
7606 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7609 csig = mono_metadata_signature_dup_full (image, sig);
7612 new_key = g_new (SignaturePointerPair,1);
7613 new_key->sig = csig;
7614 new_key->pointer = func;
7616 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7622 mono_marshal_set_wrapper_info (res, NULL);
7628 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7632 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7634 MonoMethodSignature *sig, *csig;
7635 MonoMethodBuilder *mb;
7640 MonoMethodPInvoke mpiinfo;
7641 MonoMethodPInvoke *piinfo = &mpiinfo;
7642 MonoMarshalSpec **mspecs;
7643 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7644 MonoImage *image = invoke->klass->image;
7647 // FIXME: include UnmanagedFunctionPointerAttribute info
7650 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7652 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7654 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7657 memset (&mpiinfo, 0, sizeof (mpiinfo));
7658 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7660 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7661 mono_method_get_marshal_info (invoke, mspecs);
7662 /* Freed below so don't alloc from mempool */
7663 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7666 name = g_strdup_printf ("wrapper_aot_native");
7667 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7668 mb->method->save_lmf = 1;
7671 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7674 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7675 info->d.managed_to_native.method = invoke;
7677 g_assert (!sig->hasthis);
7678 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7680 res = mono_mb_create_and_cache_full (cache, invoke,
7681 mb, csig, csig->param_count + 16,
7685 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7687 mono_metadata_free_marshal_spec (mspecs [i]);
7695 * mono_marshal_emit_managed_wrapper:
7697 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7698 * the delegate which wraps the managed method to be called. For closed delegates,
7699 * it could have fewer parameters than the method it wraps.
7700 * THIS_LOC is the memory location where the target of the delegate is stored.
7703 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7706 MonoMethodSignature *sig, *csig;
7712 /* we first do all conversions */
7713 for (i = 0; i < sig->param_count; i ++) {
7714 MonoType *t = sig->params [i];
7717 case MONO_TYPE_OBJECT:
7718 case MONO_TYPE_CLASS:
7719 case MONO_TYPE_VALUETYPE:
7720 case MONO_TYPE_ARRAY:
7721 case MONO_TYPE_SZARRAY:
7722 case MONO_TYPE_STRING:
7723 case MONO_TYPE_BOOLEAN:
7724 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7728 if (!sig->ret->byref) {
7729 switch (sig->ret->type) {
7730 case MONO_TYPE_STRING:
7731 csig->ret = &mono_defaults.int_class->byval_arg;
7738 MonoMethodSignature *sig, *csig;
7740 gboolean closed = FALSE;
7741 int coop_gc_var, coop_gc_dummy_local;
7746 /* allocate local 0 (pointer) src_ptr */
7747 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7748 /* allocate local 1 (pointer) dst_ptr */
7749 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7750 /* allocate local 2 (boolean) delete_old */
7751 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7753 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7754 /* Closed delegate */
7755 g_assert (sig->param_count == invoke_sig->param_count + 1);
7757 /* Use a new signature without the first argument */
7758 sig = mono_metadata_signature_dup (sig);
7759 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7760 sig->param_count --;
7763 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7764 /* allocate local 3 to store the return value */
7765 mono_mb_add_local (mb, sig->ret);
7768 if (mono_threads_is_coop_enabled ()) {
7769 /* local 4, the local to be used when calling the reset_blocking funcs */
7770 /* tons of code hardcode 3 to be the return var */
7771 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7772 /* local 5, the local used to get a stack address for suspend funcs */
7773 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7776 mono_mb_emit_icon (mb, 0);
7777 mono_mb_emit_stloc (mb, 2);
7780 * Might need to attach the thread to the JIT or change the
7781 * domain for the callback.
7783 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7784 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7786 if (mono_threads_is_coop_enabled ()) {
7787 /* XXX can we merge reset_blocking_start with JIT_ATTACH above and save one call? */
7788 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
7789 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
7790 mono_mb_emit_stloc (mb, coop_gc_var);
7793 /* we first do all conversions */
7794 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7795 for (i = 0; i < sig->param_count; i ++) {
7796 MonoType *t = sig->params [i];
7799 case MONO_TYPE_OBJECT:
7800 case MONO_TYPE_CLASS:
7801 case MONO_TYPE_VALUETYPE:
7802 case MONO_TYPE_ARRAY:
7803 case MONO_TYPE_SZARRAY:
7804 case MONO_TYPE_STRING:
7805 case MONO_TYPE_BOOLEAN:
7806 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7815 emit_thread_interrupt_checkpoint (mb);
7818 if (target_handle) {
7819 mono_mb_emit_icon (mb, (gint32)target_handle);
7820 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7823 g_assert_not_reached ();
7825 } else if (closed) {
7826 mono_mb_emit_icon (mb, (gint32)target_handle);
7827 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7830 for (i = 0; i < sig->param_count; i++) {
7831 MonoType *t = sig->params [i];
7833 if (tmp_locals [i]) {
7835 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7837 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7840 mono_mb_emit_ldarg (mb, i);
7843 mono_mb_emit_managed_call (mb, method, NULL);
7845 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7846 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7847 } else if (!sig->ret->byref) {
7848 switch (sig->ret->type) {
7849 case MONO_TYPE_VOID:
7851 case MONO_TYPE_BOOLEAN:
7854 case MONO_TYPE_CHAR:
7866 case MONO_TYPE_OBJECT:
7867 mono_mb_emit_stloc (mb, 3);
7869 case MONO_TYPE_STRING:
7870 csig->ret = &mono_defaults.int_class->byval_arg;
7871 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7873 case MONO_TYPE_VALUETYPE:
7874 case MONO_TYPE_CLASS:
7875 case MONO_TYPE_SZARRAY:
7876 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7879 g_warning ("return type 0x%02x unknown", sig->ret->type);
7880 g_assert_not_reached ();
7883 mono_mb_emit_stloc (mb, 3);
7886 /* Convert byref arguments back */
7887 for (i = 0; i < sig->param_count; i ++) {
7888 MonoType *t = sig->params [i];
7889 MonoMarshalSpec *spec = mspecs [i + 1];
7891 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7892 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7894 else if (t->byref) {
7896 case MONO_TYPE_CLASS:
7897 case MONO_TYPE_VALUETYPE:
7898 case MONO_TYPE_OBJECT:
7899 case MONO_TYPE_STRING:
7900 case MONO_TYPE_BOOLEAN:
7901 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7907 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7908 /* The [Out] information is encoded in the delegate signature */
7910 case MONO_TYPE_SZARRAY:
7911 case MONO_TYPE_CLASS:
7912 case MONO_TYPE_VALUETYPE:
7913 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7916 g_assert_not_reached ();
7921 if (mono_threads_is_coop_enabled ()) {
7922 /* XXX merge reset_blocking_end with detach */
7923 mono_mb_emit_ldloc (mb, coop_gc_var);
7924 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
7925 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
7928 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7929 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7931 if (m->retobj_var) {
7932 mono_mb_emit_ldloc (mb, m->retobj_var);
7933 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7934 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7937 if (!MONO_TYPE_IS_VOID(sig->ret))
7938 mono_mb_emit_ldloc (mb, 3);
7939 mono_mb_emit_byte (mb, CEE_RET);
7948 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
7950 MonoMethodSignature *sig;
7955 * Under windows, delegates passed to native code must use the STDCALL
7956 * calling convention.
7958 csig->call_convention = MONO_CALL_STDCALL;
7961 sig = mono_method_signature (method);
7963 /* Change default calling convention if needed */
7964 /* Why is this a modopt ? */
7965 if (sig->ret && sig->ret->num_mods) {
7966 for (i = 0; i < sig->ret->num_mods; ++i) {
7968 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
7969 g_assert (mono_error_ok (&error));
7970 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
7971 if (!strcmp (cmod_class->name, "CallConvCdecl"))
7972 csig->call_convention = MONO_CALL_C;
7973 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
7974 csig->call_convention = MONO_CALL_STDCALL;
7975 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
7976 csig->call_convention = MONO_CALL_FASTCALL;
7977 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
7978 csig->call_convention = MONO_CALL_THISCALL;
7985 * generates IL code to call managed methods from unmanaged code
7986 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
7989 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
7991 static MonoClass *UnmanagedFunctionPointerAttribute;
7992 MonoMethodSignature *sig, *csig, *invoke_sig;
7993 MonoMethodBuilder *mb;
7994 MonoMethod *res, *invoke;
7995 MonoMarshalSpec **mspecs;
7996 MonoMethodPInvoke piinfo;
7999 EmitMarshalContext m;
8001 g_assert (method != NULL);
8002 g_assert (!mono_method_signature (method)->pinvoke);
8005 * FIXME: Should cache the method+delegate type pair, since the same method
8006 * could be called with different delegates, thus different marshalling
8009 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8011 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8014 invoke = mono_get_delegate_invoke (delegate_klass);
8015 invoke_sig = mono_method_signature (invoke);
8017 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8018 mono_method_get_marshal_info (invoke, mspecs);
8020 sig = mono_method_signature (method);
8022 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8024 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8025 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8027 /* we copy the signature, so that we can modify it */
8029 /* Need to free this later */
8030 csig = mono_metadata_signature_dup (invoke_sig);
8032 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8036 memset (&m, 0, sizeof (m));
8042 m.image = method->klass->image;
8044 mono_marshal_set_callconv_from_modopt (invoke, csig);
8046 /* Handle the UnmanagedFunctionPointerAttribute */
8047 if (!UnmanagedFunctionPointerAttribute)
8048 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8050 /* The attribute is only available in Net 2.0 */
8051 if (UnmanagedFunctionPointerAttribute) {
8052 MonoCustomAttrInfo *cinfo;
8053 MonoCustomAttrEntry *attr;
8056 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8057 * contents of the attribute without constructing it, as that might not be
8058 * possible when running in cross-compiling mode.
8060 cinfo = mono_custom_attrs_from_class (delegate_klass);
8063 for (i = 0; i < cinfo->num_attrs; ++i) {
8064 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8065 if (mono_class_has_parent (ctor_class, UnmanagedFunctionPointerAttribute)) {
8066 attr = &cinfo->attrs [i];
8072 MonoArray *typed_args, *named_args;
8073 CattrNamedArg *arginfo;
8077 MonoBoolean set_last_error = 0;
8080 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8081 g_assert (mono_error_ok (&error));
8082 g_assert (mono_array_length (typed_args) == 1);
8085 o = mono_array_get (typed_args, MonoObject*, 0);
8086 call_conv = *(gint32*)mono_object_unbox (o);
8089 for (i = 0; i < mono_array_length (named_args); ++i) {
8090 CattrNamedArg *narg = &arginfo [i];
8092 o = mono_array_get (named_args, MonoObject*, i);
8094 g_assert (narg->field);
8095 if (!strcmp (narg->field->name, "CharSet")) {
8096 charset = *(gint32*)mono_object_unbox (o);
8097 } else if (!strcmp (narg->field->name, "SetLastError")) {
8098 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8099 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8100 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8101 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8102 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8104 g_assert_not_reached ();
8110 memset (&piinfo, 0, sizeof (piinfo));
8112 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8114 csig->call_convention = call_conv - 1;
8117 if (cinfo && !cinfo->cached)
8118 mono_custom_attrs_free (cinfo);
8121 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8123 if (!target_handle) {
8126 // FIXME: Associate it with the method+delegate_klass pair
8127 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8128 info->d.native_to_managed.method = method;
8129 info->d.native_to_managed.klass = delegate_klass;
8131 res = mono_mb_create_and_cache_full (cache, method,
8132 mb, csig, sig->param_count + 16,
8138 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8142 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8144 mono_metadata_free_marshal_spec (mspecs [i]);
8147 /* mono_method_print_code (res); */
8153 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8156 MonoMethodSignature *sig;
8157 MonoMethodBuilder *mb;
8162 method = mono_get_method (image, token, NULL);
8165 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8166 MonoMethodSignature *csig;
8167 MonoMarshalSpec **mspecs;
8168 EmitMarshalContext m;
8170 sig = mono_method_signature (method);
8171 g_assert (!sig->hasthis);
8173 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8174 mono_method_get_marshal_info (method, mspecs);
8176 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8177 csig = mono_metadata_signature_dup_full (image, sig);
8181 memset (&m, 0, sizeof (m));
8189 mono_marshal_set_callconv_from_modopt (method, csig);
8191 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8193 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8198 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8201 for (i = sig->param_count; i >= 0; i--)
8203 mono_metadata_free_marshal_spec (mspecs [i]);
8206 return mono_compile_method (method);
8209 sig = mono_method_signature (method);
8210 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8212 param_count = sig->param_count + sig->hasthis;
8214 for (i = 0; i < param_count; i++)
8215 mono_mb_emit_ldarg (mb, i);
8217 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8218 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8220 mono_mb_emit_op (mb, CEE_CALL, method);
8221 mono_mb_emit_byte (mb, CEE_RET);
8226 method = mono_mb_create (mb, sig, param_count, NULL);
8229 return mono_compile_method (method);
8235 * The code directly following this is the cache hit, value positive branch
8237 * This function takes a new method builder with 0 locals and adds two locals
8238 * to create multiple out-branches and the fall through state of having the object
8239 * on the stack after a cache miss
8242 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8243 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8244 MonoMethodBuilder *mb)
8248 /* allocate local 0 (pointer) obj_vtable */
8249 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8250 /* allocate local 1 (pointer) cached_vtable */
8251 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8254 mono_mb_emit_ldarg (mb, obj_arg_position);
8255 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8257 /*obj_vtable = obj->vtable;*/
8258 mono_mb_emit_ldarg (mb, obj_arg_position);
8259 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8260 mono_mb_emit_byte (mb, CEE_LDIND_I);
8261 mono_mb_emit_stloc (mb, 0);
8263 /* cached_vtable = *cache*/
8264 mono_mb_emit_ldarg (mb, cache_arg_position);
8265 mono_mb_emit_byte (mb, CEE_LDIND_I);
8266 mono_mb_emit_stloc (mb, 1);
8268 mono_mb_emit_ldloc (mb, 1);
8269 mono_mb_emit_byte (mb, CEE_LDC_I4);
8270 mono_mb_emit_i4 (mb, ~0x1);
8271 mono_mb_emit_byte (mb, CEE_CONV_I);
8272 mono_mb_emit_byte (mb, CEE_AND);
8273 mono_mb_emit_ldloc (mb, 0);
8274 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8275 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8277 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8278 mono_mb_emit_ldloc (mb, 1);
8279 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8280 mono_mb_emit_byte (mb, CEE_CONV_U);
8281 mono_mb_emit_byte (mb, CEE_AND);
8282 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8283 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8286 mono_mb_patch_branch (mb, cache_miss_pos);
8289 mono_mb_emit_ldarg (mb, obj_arg_position);
8290 mono_mb_emit_ldarg (mb, class_arg_position);
8291 mono_mb_emit_ldarg (mb, cache_arg_position);
8292 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8295 #endif /* DISABLE_JIT */
8298 * This does the equivalent of mono_object_castclass_with_cache.
8299 * The wrapper info for the wrapper is a WrapperInfo structure.
8302 mono_marshal_get_castclass_with_cache (void)
8304 static MonoMethod *cached;
8306 MonoMethodBuilder *mb;
8307 MonoMethodSignature *sig;
8308 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8311 const int obj_arg_position = 0;
8312 const int class_arg_position = 1;
8313 const int cache_arg_position = 2;
8318 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8319 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8320 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8321 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8322 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8323 sig->ret = &mono_defaults.object_class->byval_arg;
8327 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8328 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8329 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8332 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8333 mono_mb_emit_ldarg (mb, obj_arg_position);
8334 mono_mb_emit_byte (mb, CEE_RET);
8337 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8338 mono_mb_patch_branch (mb, invalid_cast_pos);
8339 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8342 mono_mb_patch_branch (mb, return_null_pos);
8343 mono_mb_emit_byte (mb, CEE_LDNULL);
8344 mono_mb_emit_byte (mb, CEE_RET);
8345 #endif /* DISABLE_JIT */
8347 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8348 res = mono_mb_create (mb, sig, 8, info);
8351 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8352 mono_free_method (res);
8353 mono_metadata_free_method_signature (sig);
8361 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8363 MonoObject *isinst = mono_object_isinst (obj, klass);
8365 #ifndef DISABLE_REMOTING
8366 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8370 uintptr_t cache_update = (uintptr_t)obj->vtable;
8372 cache_update = cache_update | 0x1;
8374 *cache = cache_update;
8380 * This does the equivalent of mono_object_isinst_with_cache.
8381 * The wrapper info for the wrapper is a WrapperInfo structure.
8384 mono_marshal_get_isinst_with_cache (void)
8386 static MonoMethod *cached;
8388 MonoMethodBuilder *mb;
8389 MonoMethodSignature *sig;
8390 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8393 const int obj_arg_position = 0;
8394 const int class_arg_position = 1;
8395 const int cache_arg_position = 2;
8400 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8401 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8403 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8405 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8407 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8408 sig->ret = &mono_defaults.object_class->byval_arg;
8412 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8413 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8414 // Return the object gotten via the slow path.
8415 mono_mb_emit_byte (mb, CEE_RET);
8418 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8419 mono_mb_patch_branch (mb, return_null_pos);
8420 mono_mb_emit_byte (mb, CEE_LDNULL);
8421 mono_mb_emit_byte (mb, CEE_RET);
8424 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8425 mono_mb_emit_ldarg (mb, 0);
8426 mono_mb_emit_byte (mb, CEE_RET);
8429 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8430 res = mono_mb_create (mb, sig, 8, info);
8433 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8434 mono_free_method (res);
8435 mono_metadata_free_method_signature (sig);
8443 * mono_marshal_get_isinst:
8444 * @klass: the type of the field
8446 * This method generates a function which can be used to check if an object is
8447 * an instance of the given type, icluding the case where the object is a proxy.
8448 * The generated function has the following signature:
8449 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8452 mono_marshal_get_isinst (MonoClass *klass)
8454 static MonoMethodSignature *isint_sig = NULL;
8458 int pos_was_ok, pos_end;
8459 #ifndef DISABLE_REMOTING
8460 int pos_end2, pos_failed;
8463 MonoMethodBuilder *mb;
8465 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8466 if ((res = mono_marshal_find_in_cache (cache, klass)))
8470 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8471 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8472 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8473 isint_sig->pinvoke = 0;
8476 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8477 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8480 mb->method->save_lmf = 1;
8483 /* check if the object is a proxy that needs special cast */
8484 mono_mb_emit_ldarg (mb, 0);
8485 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8486 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8488 /* The result of MONO_CISINST can be:
8489 0) the type check succeeded
8490 1) the type check did not succeed
8491 2) a CanCastTo call is needed */
8492 #ifndef DISABLE_REMOTING
8493 mono_mb_emit_byte (mb, CEE_DUP);
8494 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8496 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8497 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8499 /* get the real proxy from the transparent proxy*/
8501 mono_mb_emit_ldarg (mb, 0);
8502 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8503 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8507 mono_mb_patch_branch (mb, pos_failed);
8508 mono_mb_emit_byte (mb, CEE_LDNULL);
8509 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8513 mono_mb_patch_branch (mb, pos_was_ok);
8514 mono_mb_emit_byte (mb, CEE_POP);
8515 mono_mb_emit_ldarg (mb, 0);
8519 mono_mb_patch_branch (mb, pos_end);
8520 mono_mb_patch_branch (mb, pos_end2);
8521 mono_mb_emit_byte (mb, CEE_RET);
8523 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8527 mono_mb_emit_byte (mb, CEE_LDNULL);
8528 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8532 mono_mb_patch_branch (mb, pos_was_ok);
8533 mono_mb_emit_ldarg (mb, 0);
8537 mono_mb_patch_branch (mb, pos_end);
8538 mono_mb_emit_byte (mb, CEE_RET);
8539 #endif /* DISABLE_REMOTING */
8540 #endif /* DISABLE_JIT */
8542 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8543 info->d.proxy.klass = klass;
8544 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8551 * mono_marshal_get_castclass:
8552 * @klass: the type of the field
8554 * This method generates a function which can be used to cast an object to
8555 * an instance of the given type, icluding the case where the object is a proxy.
8556 * The generated function has the following signature:
8557 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8558 * The wrapper info for the wrapper is a WrapperInfo structure.
8561 mono_marshal_get_castclass (MonoClass *klass)
8563 static MonoMethodSignature *castclass_sig = NULL;
8566 #ifndef DISABLE_REMOTING
8567 int pos_was_ok, pos_was_ok2;
8570 MonoMethodBuilder *mb;
8573 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8574 if ((res = mono_marshal_find_in_cache (cache, klass)))
8577 if (!castclass_sig) {
8578 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8579 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8580 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8581 castclass_sig->pinvoke = 0;
8584 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8585 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8588 mb->method->save_lmf = 1;
8591 /* check if the object is a proxy that needs special cast */
8592 mono_mb_emit_ldarg (mb, 0);
8593 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8594 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8596 /* The result of MONO_CCASTCLASS can be:
8597 0) the cast is valid
8598 1) cast of unknown proxy type
8599 or an exception if the cast is is invalid
8601 #ifndef DISABLE_REMOTING
8602 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8604 /* get the real proxy from the transparent proxy*/
8606 mono_mb_emit_ldarg (mb, 0);
8607 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8608 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8611 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8614 mono_mb_patch_branch (mb, pos_was_ok);
8615 mono_mb_patch_branch (mb, pos_was_ok2);
8617 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8618 mono_mb_emit_byte (mb, CEE_POP);
8619 #endif /* DISABLE_REMOTING */
8621 mono_mb_emit_ldarg (mb, 0);
8624 mono_mb_emit_byte (mb, CEE_RET);
8625 #endif /* DISABLE_JIT */
8627 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8629 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8637 * mono_marshal_get_struct_to_ptr:
8640 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8641 * The wrapper info for the wrapper is a WrapperInfo structure.
8644 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8646 MonoMethodBuilder *mb;
8647 static MonoMethod *stoptr = NULL;
8651 g_assert (klass != NULL);
8653 mono_marshal_load_type_info (klass);
8655 if (klass->marshal_info->str_to_ptr)
8656 return klass->marshal_info->str_to_ptr;
8659 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8662 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8665 if (klass->blittable) {
8666 mono_mb_emit_byte (mb, CEE_LDARG_1);
8667 mono_mb_emit_byte (mb, CEE_LDARG_0);
8668 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8669 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8670 mono_mb_emit_byte (mb, CEE_PREFIX1);
8671 mono_mb_emit_byte (mb, CEE_CPBLK);
8674 /* allocate local 0 (pointer) src_ptr */
8675 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8676 /* allocate local 1 (pointer) dst_ptr */
8677 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8678 /* allocate local 2 (boolean) delete_old */
8679 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8680 mono_mb_emit_byte (mb, CEE_LDARG_2);
8681 mono_mb_emit_stloc (mb, 2);
8683 /* initialize src_ptr to point to the start of object data */
8684 mono_mb_emit_byte (mb, CEE_LDARG_0);
8685 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8686 mono_mb_emit_stloc (mb, 0);
8688 /* initialize dst_ptr */
8689 mono_mb_emit_byte (mb, CEE_LDARG_1);
8690 mono_mb_emit_stloc (mb, 1);
8692 emit_struct_conv (mb, klass, FALSE);
8695 mono_mb_emit_byte (mb, CEE_RET);
8697 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8698 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8701 mono_marshal_lock ();
8702 if (!klass->marshal_info->str_to_ptr)
8703 klass->marshal_info->str_to_ptr = res;
8705 res = klass->marshal_info->str_to_ptr;
8706 mono_marshal_unlock ();
8711 * mono_marshal_get_ptr_to_struct:
8714 * generates IL code for PtrToStructure (IntPtr src, object structure)
8715 * The wrapper info for the wrapper is a WrapperInfo structure.
8718 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8720 MonoMethodBuilder *mb;
8721 static MonoMethodSignature *ptostr = NULL;
8725 g_assert (klass != NULL);
8727 mono_marshal_load_type_info (klass);
8729 if (klass->marshal_info->ptr_to_str)
8730 return klass->marshal_info->ptr_to_str;
8733 MonoMethodSignature *sig;
8735 /* Create the signature corresponding to
8736 static void PtrToStructure (IntPtr ptr, object structure);
8737 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8738 sig = mono_create_icall_signature ("void ptr object");
8739 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8741 mono_memory_barrier ();
8745 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8748 if (klass->blittable) {
8749 mono_mb_emit_byte (mb, CEE_LDARG_1);
8750 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8751 mono_mb_emit_byte (mb, CEE_LDARG_0);
8752 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8753 mono_mb_emit_byte (mb, CEE_PREFIX1);
8754 mono_mb_emit_byte (mb, CEE_CPBLK);
8757 /* allocate local 0 (pointer) src_ptr */
8758 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8759 /* allocate local 1 (pointer) dst_ptr */
8760 mono_mb_add_local (mb, &klass->this_arg);
8762 /* initialize src_ptr to point to the start of object data */
8763 mono_mb_emit_byte (mb, CEE_LDARG_0);
8764 mono_mb_emit_stloc (mb, 0);
8766 /* initialize dst_ptr */
8767 mono_mb_emit_byte (mb, CEE_LDARG_1);
8768 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8769 mono_mb_emit_stloc (mb, 1);
8771 emit_struct_conv (mb, klass, TRUE);
8774 mono_mb_emit_byte (mb, CEE_RET);
8776 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8777 res = mono_mb_create (mb, ptostr, 0, info);
8780 mono_marshal_lock ();
8781 if (!klass->marshal_info->ptr_to_str)
8782 klass->marshal_info->ptr_to_str = res;
8784 res = klass->marshal_info->ptr_to_str;
8785 mono_marshal_unlock ();
8790 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8791 * This is used to avoid infinite recursion since it is hard to determine where to
8792 * replace a method with its synchronized wrapper, and where not.
8793 * The runtime should execute METHOD instead of the wrapper.
8794 * The wrapper info for the wrapper is a WrapperInfo structure.
8797 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8799 MonoMethodBuilder *mb;
8801 MonoMethodSignature *sig;
8803 MonoGenericContext *ctx = NULL;
8804 MonoGenericContainer *container = NULL;
8806 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8807 ctx = &((MonoMethodInflated*)method)->context;
8808 method = ((MonoMethodInflated*)method)->declaring;
8809 container = mono_method_get_generic_container (method);
8811 container = method->klass->generic_container;
8812 g_assert (container);
8815 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8817 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8818 mono_mb_emit_byte (mb, CEE_RET);
8820 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8822 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8823 info->d.synchronized_inner.method = method;
8824 res = mono_mb_create (mb, sig, 0, info);
8828 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8829 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8835 * generates IL code for the synchronized wrapper: the generated method
8836 * calls METHOD while locking 'this' or the parent type.
8839 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8841 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8842 MonoMethodSignature *sig;
8843 MonoExceptionClause *clause;
8844 MonoMethodBuilder *mb;
8848 int i, pos, pos2, this_local, taken_local, ret_local = 0;
8849 MonoGenericContext *ctx = NULL;
8850 MonoMethod *orig_method = NULL;
8851 MonoGenericContainer *container = NULL;
8855 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8858 /* FIXME: Support generic methods too */
8859 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8860 orig_method = method;
8861 ctx = &((MonoMethodInflated*)method)->context;
8862 method = ((MonoMethodInflated*)method)->declaring;
8863 container = mono_method_get_generic_container (method);
8865 container = method->klass->generic_container;
8866 g_assert (container);
8873 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8874 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8878 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8879 if ((res = mono_marshal_find_in_cache (cache, method)))
8883 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8886 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8888 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8889 info->d.synchronized.method = method;
8892 mb->skip_visibility = 1;
8894 if (!MONO_TYPE_IS_VOID (sig->ret))
8895 ret_local = mono_mb_add_local (mb, sig->ret);
8898 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8899 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8901 /* This will throw the type load exception when the wrapper is compiled */
8902 mono_mb_emit_byte (mb, CEE_LDNULL);
8903 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8904 mono_mb_emit_byte (mb, CEE_POP);
8906 if (!MONO_TYPE_IS_VOID (sig->ret))
8907 mono_mb_emit_ldloc (mb, ret_local);
8908 mono_mb_emit_byte (mb, CEE_RET);
8911 res = mono_mb_create_and_cache_full (cache, method,
8912 mb, sig, sig->param_count + 16, info, NULL);
8920 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8921 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8923 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8924 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8927 mono_marshal_lock ();
8929 if (!enter_method) {
8930 MonoMethodDesc *desc;
8932 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
8933 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8934 g_assert (enter_method);
8935 mono_method_desc_free (desc);
8937 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8938 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8939 g_assert (exit_method);
8940 mono_method_desc_free (desc);
8942 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8943 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8944 g_assert (gettypefromhandle_method);
8945 mono_method_desc_free (desc);
8948 mono_marshal_unlock ();
8951 /* Push this or the type object */
8952 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
8953 /* We have special handling for this in the JIT */
8954 int index = mono_mb_add_data (mb, method->klass);
8955 mono_mb_add_data (mb, mono_defaults.typehandle_class);
8956 mono_mb_emit_byte (mb, CEE_LDTOKEN);
8957 mono_mb_emit_i4 (mb, index);
8959 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
8962 mono_mb_emit_ldarg (mb, 0);
8963 mono_mb_emit_stloc (mb, this_local);
8965 /* Call Monitor::Enter() */
8966 mono_mb_emit_ldloc (mb, this_local);
8967 mono_mb_emit_ldloc_addr (mb, taken_local);
8968 mono_mb_emit_managed_call (mb, enter_method, NULL);
8970 clause->try_offset = mono_mb_get_label (mb);
8972 /* Call the method */
8974 mono_mb_emit_ldarg (mb, 0);
8975 for (i = 0; i < sig->param_count; i++)
8976 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
8980 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
8981 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8983 mono_mb_emit_managed_call (mb, method, NULL);
8986 if (!MONO_TYPE_IS_VOID (sig->ret))
8987 mono_mb_emit_stloc (mb, ret_local);
8989 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8991 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
8992 clause->handler_offset = mono_mb_get_label (mb);
8994 /* Call Monitor::Exit() if needed */
8995 mono_mb_emit_ldloc (mb, taken_local);
8996 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
8997 mono_mb_emit_ldloc (mb, this_local);
8998 mono_mb_emit_managed_call (mb, exit_method, NULL);
8999 mono_mb_patch_branch (mb, pos2);
9000 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9002 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9004 mono_mb_patch_branch (mb, pos);
9005 if (!MONO_TYPE_IS_VOID (sig->ret))
9006 mono_mb_emit_ldloc (mb, ret_local);
9007 mono_mb_emit_byte (mb, CEE_RET);
9009 mono_mb_set_clauses (mb, 1, clause);
9014 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9015 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9017 res = mono_mb_create_and_cache_full (cache, method,
9018 mb, sig, sig->param_count + 16, info, NULL);
9027 * the returned method calls 'method' unboxing the this argument
9030 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9032 MonoMethodSignature *sig = mono_method_signature (method);
9034 MonoMethodBuilder *mb;
9039 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9041 if ((res = mono_marshal_find_in_cache (cache, method)))
9044 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9046 g_assert (sig->hasthis);
9049 mono_mb_emit_ldarg (mb, 0);
9050 mono_mb_emit_icon (mb, sizeof (MonoObject));
9051 mono_mb_emit_byte (mb, CEE_ADD);
9052 for (i = 0; i < sig->param_count; ++i)
9053 mono_mb_emit_ldarg (mb, i + 1);
9054 mono_mb_emit_managed_call (mb, method, NULL);
9055 mono_mb_emit_byte (mb, CEE_RET);
9058 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9059 info->d.unbox.method = method;
9061 res = mono_mb_create_and_cache_full (cache, method,
9062 mb, sig, sig->param_count + 16, info, NULL);
9065 /* mono_method_print_code (res); */
9071 STELEMREF_OBJECT, /*no check at all*/
9072 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9073 STELEMREF_CLASS, /*only the klass->parents check*/
9074 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9075 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9076 STELEMREF_KIND_COUNT
9079 static const char *strelemref_wrapper_name[] = {
9080 "object", "sealed_class", "class", "interface", "complex"
9084 is_monomorphic_array (MonoClass *klass)
9086 MonoClass *element_class;
9087 if (klass->rank != 1)
9090 element_class = klass->element_class;
9091 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9095 get_virtual_stelemref_kind (MonoClass *element_class)
9097 if (element_class == mono_defaults.object_class)
9098 return STELEMREF_OBJECT;
9099 if (is_monomorphic_array (element_class))
9100 return STELEMREF_SEALED_CLASS;
9101 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9102 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9103 #ifdef COMPRESSED_INTERFACE_BITMAP
9104 return STELEMREF_COMPLEX;
9106 return STELEMREF_INTERFACE;
9108 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9109 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9110 return STELEMREF_COMPLEX;
9111 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9112 return STELEMREF_SEALED_CLASS;
9113 return STELEMREF_CLASS;
9119 load_array_element_address (MonoMethodBuilder *mb)
9121 mono_mb_emit_ldarg (mb, 0);
9122 mono_mb_emit_ldarg (mb, 1);
9123 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9127 load_array_class (MonoMethodBuilder *mb, int aklass)
9129 mono_mb_emit_ldarg (mb, 0);
9130 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9131 mono_mb_emit_byte (mb, CEE_LDIND_I);
9132 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9133 mono_mb_emit_byte (mb, CEE_LDIND_I);
9134 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9135 mono_mb_emit_byte (mb, CEE_LDIND_I);
9136 mono_mb_emit_stloc (mb, aklass);
9140 load_value_class (MonoMethodBuilder *mb, int vklass)
9142 mono_mb_emit_ldarg (mb, 2);
9143 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9144 mono_mb_emit_byte (mb, CEE_LDIND_I);
9145 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9146 mono_mb_emit_byte (mb, CEE_LDIND_I);
9147 mono_mb_emit_stloc (mb, vklass);
9153 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9155 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9156 printf ("slow vstore of %s\n", name);
9162 * The wrapper info for the wrapper is a WrapperInfo structure.
9165 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9166 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9167 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9168 * - Add a case for arrays of arrays.
9171 get_virtual_stelemref_wrapper (int kind)
9173 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9174 static MonoMethodSignature *signature;
9175 MonoMethodBuilder *mb;
9178 const char *param_names [16];
9180 int aklass, vklass, vtable, uiid;
9181 int array_slot_addr;
9184 if (cached_methods [kind])
9185 return cached_methods [kind];
9187 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9188 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9192 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9194 /* void this::stelemref (size_t idx, void* value) */
9195 sig->ret = &mono_defaults.void_class->byval_arg;
9196 sig->hasthis = TRUE;
9197 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9198 sig->params [1] = &mono_defaults.object_class->byval_arg;
9203 param_names [0] = "index";
9204 param_names [1] = "value";
9205 mono_mb_set_param_names (mb, param_names);
9207 /*For now simply call plain old stelemref*/
9209 case STELEMREF_OBJECT:
9210 /* ldelema (implicit bound check) */
9211 load_array_element_address (mb);
9213 mono_mb_emit_ldarg (mb, 2);
9214 mono_mb_emit_byte (mb, CEE_STIND_REF);
9215 mono_mb_emit_byte (mb, CEE_RET);
9218 case STELEMREF_COMPLEX:
9220 <ldelema (bound check)>
9223 if (!mono_object_isinst (value, aklass))
9227 *array_slot_addr = value;
9230 throw new ArrayTypeMismatchException ();
9233 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9234 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9238 /*Use this to debug/record stores that are going thru the slow path*/
9239 MonoMethodSignature *csig;
9240 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9241 csig->ret = &mono_defaults.void_class->byval_arg;
9242 csig->params [0] = &mono_defaults.object_class->byval_arg;
9243 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9244 csig->params [2] = &mono_defaults.object_class->byval_arg;
9245 mono_mb_emit_ldarg (mb, 0);
9246 mono_mb_emit_ldarg (mb, 1);
9247 mono_mb_emit_ldarg (mb, 2);
9248 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9252 /* ldelema (implicit bound check) */
9253 load_array_element_address (mb);
9254 mono_mb_emit_stloc (mb, array_slot_addr);
9256 /* if (!value) goto do_store */
9257 mono_mb_emit_ldarg (mb, 2);
9258 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9260 /* aklass = array->vtable->klass->element_class */
9261 load_array_class (mb, aklass);
9263 /*if (mono_object_isinst (value, aklass)) */
9264 mono_mb_emit_ldarg (mb, 2);
9265 mono_mb_emit_ldloc (mb, aklass);
9266 mono_mb_emit_icall (mb, mono_object_isinst);
9267 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9270 mono_mb_patch_branch (mb, b1);
9271 mono_mb_emit_ldloc (mb, array_slot_addr);
9272 mono_mb_emit_ldarg (mb, 2);
9273 mono_mb_emit_byte (mb, CEE_STIND_REF);
9274 mono_mb_emit_byte (mb, CEE_RET);
9277 mono_mb_patch_branch (mb, b2);
9279 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9282 case STELEMREF_SEALED_CLASS:
9284 <ldelema (bound check)>
9288 aklass = array->vtable->klass->element_class;
9289 vklass = value->vtable->klass;
9291 if (vklass != aklass)
9295 *array_slot_addr = value;
9298 throw new ArrayTypeMismatchException ();
9300 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9301 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9302 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9305 /* ldelema (implicit bound check) */
9306 load_array_element_address (mb);
9307 mono_mb_emit_stloc (mb, array_slot_addr);
9309 /* if (!value) goto do_store */
9310 mono_mb_emit_ldarg (mb, 2);
9311 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9313 /* aklass = array->vtable->klass->element_class */
9314 load_array_class (mb, aklass);
9316 /* vklass = value->vtable->klass */
9317 load_value_class (mb, vklass);
9319 /*if (vklass != aklass) goto do_exception; */
9320 mono_mb_emit_ldloc (mb, aklass);
9321 mono_mb_emit_ldloc (mb, vklass);
9322 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9325 mono_mb_patch_branch (mb, b1);
9326 mono_mb_emit_ldloc (mb, array_slot_addr);
9327 mono_mb_emit_ldarg (mb, 2);
9328 mono_mb_emit_byte (mb, CEE_STIND_REF);
9329 mono_mb_emit_byte (mb, CEE_RET);
9332 mono_mb_patch_branch (mb, b2);
9333 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9336 case STELEMREF_CLASS:
9339 <ldelema (bound check)>
9343 aklass = array->vtable->klass->element_class;
9344 vklass = value->vtable->klass;
9346 if (vklass->idepth < aklass->idepth)
9349 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9353 *array_slot_addr = value;
9357 throw new ArrayTypeMismatchException ();
9359 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9360 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9361 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9363 /* ldelema (implicit bound check) */
9364 load_array_element_address (mb);
9365 mono_mb_emit_stloc (mb, array_slot_addr);
9367 /* if (!value) goto do_store */
9368 mono_mb_emit_ldarg (mb, 2);
9369 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9371 /* aklass = array->vtable->klass->element_class */
9372 load_array_class (mb, aklass);
9374 /* vklass = value->vtable->klass */
9375 load_value_class (mb, vklass);
9377 /*if (mono_object_isinst (value, aklass)) */
9378 mono_mb_emit_ldarg (mb, 2);
9379 mono_mb_emit_ldloc (mb, aklass);
9380 mono_mb_emit_icall (mb, mono_object_isinst);
9381 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9383 /* if (vklass->idepth < aklass->idepth) goto failue */
9384 mono_mb_emit_ldloc (mb, vklass);
9385 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9386 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9388 mono_mb_emit_ldloc (mb, aklass);
9389 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9390 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9392 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9394 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9395 mono_mb_emit_ldloc (mb, vklass);
9396 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9397 mono_mb_emit_byte (mb, CEE_LDIND_I);
9399 mono_mb_emit_ldloc (mb, aklass);
9400 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9401 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9402 mono_mb_emit_icon (mb, 1);
9403 mono_mb_emit_byte (mb, CEE_SUB);
9404 mono_mb_emit_icon (mb, sizeof (void*));
9405 mono_mb_emit_byte (mb, CEE_MUL);
9406 mono_mb_emit_byte (mb, CEE_ADD);
9407 mono_mb_emit_byte (mb, CEE_LDIND_I);
9409 mono_mb_emit_ldloc (mb, aklass);
9410 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9413 mono_mb_patch_branch (mb, b1);
9414 mono_mb_emit_ldloc (mb, array_slot_addr);
9415 mono_mb_emit_ldarg (mb, 2);
9416 mono_mb_emit_byte (mb, CEE_STIND_REF);
9417 mono_mb_emit_byte (mb, CEE_RET);
9420 mono_mb_patch_branch (mb, b2);
9421 mono_mb_patch_branch (mb, b3);
9423 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9426 case STELEMREF_INTERFACE:
9433 klass = array->obj.vtable->klass->element_class;
9435 uiid = klass->interface_id;
9436 if (uiid > vt->max_interface_id)
9438 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9441 mono_array_setref (array, index, value);
9444 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9446 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9447 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9448 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9449 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9451 /* ldelema (implicit bound check) */
9452 load_array_element_address (mb);
9453 mono_mb_emit_stloc (mb, array_slot_addr);
9455 /* if (!value) goto do_store */
9456 mono_mb_emit_ldarg (mb, 2);
9457 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9459 /* klass = array->vtable->klass->element_class */
9460 load_array_class (mb, aklass);
9462 /* vt = value->vtable */
9463 mono_mb_emit_ldarg (mb, 2);
9464 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9465 mono_mb_emit_byte (mb, CEE_LDIND_I);
9466 mono_mb_emit_stloc (mb, vtable);
9468 /* uiid = klass->interface_id; */
9469 mono_mb_emit_ldloc (mb, aklass);
9470 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9471 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9472 mono_mb_emit_stloc (mb, uiid);
9474 /*if (uiid > vt->max_interface_id)*/
9475 mono_mb_emit_ldloc (mb, uiid);
9476 mono_mb_emit_ldloc (mb, vtable);
9477 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9478 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9479 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9481 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9483 /*vt->interface_bitmap*/
9484 mono_mb_emit_ldloc (mb, vtable);
9485 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9486 mono_mb_emit_byte (mb, CEE_LDIND_I);
9489 mono_mb_emit_ldloc (mb, uiid);
9490 mono_mb_emit_icon (mb, 3);
9491 mono_mb_emit_byte (mb, CEE_SHR_UN);
9493 /*vt->interface_bitmap [(uiid) >> 3]*/
9494 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9495 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9497 /*(1 << ((uiid)&7)))*/
9498 mono_mb_emit_icon (mb, 1);
9499 mono_mb_emit_ldloc (mb, uiid);
9500 mono_mb_emit_icon (mb, 7);
9501 mono_mb_emit_byte (mb, CEE_AND);
9502 mono_mb_emit_byte (mb, CEE_SHL);
9504 /*bitwise and the whole thing*/
9505 mono_mb_emit_byte (mb, CEE_AND);
9506 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9509 mono_mb_patch_branch (mb, b1);
9510 mono_mb_emit_ldloc (mb, array_slot_addr);
9511 mono_mb_emit_ldarg (mb, 2);
9512 mono_mb_emit_byte (mb, CEE_STIND_REF);
9513 mono_mb_emit_byte (mb, CEE_RET);
9516 mono_mb_patch_branch (mb, b2);
9517 mono_mb_patch_branch (mb, b3);
9518 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9522 mono_mb_emit_ldarg (mb, 0);
9523 mono_mb_emit_ldarg (mb, 1);
9524 mono_mb_emit_ldarg (mb, 2);
9525 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9526 mono_mb_emit_byte (mb, CEE_RET);
9529 #endif /* DISABLE_JIT */
9530 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9531 info->d.virtual_stelemref.kind = kind;
9532 res = mono_mb_create (mb, signature, 4, info);
9533 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9535 mono_marshal_lock ();
9536 if (!cached_methods [kind]) {
9537 cached_methods [kind] = res;
9538 mono_marshal_unlock ();
9540 mono_marshal_unlock ();
9541 mono_free_method (res);
9545 return cached_methods [kind];
9549 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9553 g_assert (array_class->rank == 1);
9554 kind = get_virtual_stelemref_kind (array_class->element_class);
9556 return get_virtual_stelemref_wrapper (kind);
9560 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9565 *nwrappers = STELEMREF_KIND_COUNT;
9566 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9567 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9568 res [i] = get_virtual_stelemref_wrapper (i);
9573 * The wrapper info for the wrapper is a WrapperInfo structure.
9576 mono_marshal_get_stelemref (void)
9578 static MonoMethod* ret = NULL;
9579 MonoMethodSignature *sig;
9580 MonoMethodBuilder *mb;
9583 guint32 b1, b2, b3, b4;
9586 int array_slot_addr;
9591 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9594 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9596 /* void stelemref (void* array, int idx, void* value) */
9597 sig->ret = &mono_defaults.void_class->byval_arg;
9598 sig->params [0] = &mono_defaults.object_class->byval_arg;
9599 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9600 sig->params [2] = &mono_defaults.object_class->byval_arg;
9603 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9604 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9605 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9609 <ldelema (bound check)>
9613 aklass = array->vtable->klass->element_class;
9614 vklass = value->vtable->klass;
9616 if (vklass->idepth < aklass->idepth)
9619 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9623 *array_slot_addr = value;
9627 if (mono_object_isinst (value, aklass))
9630 throw new ArrayTypeMismatchException ();
9633 /* ldelema (implicit bound check) */
9634 mono_mb_emit_ldarg (mb, 0);
9635 mono_mb_emit_ldarg (mb, 1);
9636 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9637 mono_mb_emit_stloc (mb, array_slot_addr);
9639 /* if (!value) goto do_store */
9640 mono_mb_emit_ldarg (mb, 2);
9641 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9643 /* aklass = array->vtable->klass->element_class */
9644 mono_mb_emit_ldarg (mb, 0);
9645 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9646 mono_mb_emit_byte (mb, CEE_LDIND_I);
9647 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9648 mono_mb_emit_byte (mb, CEE_LDIND_I);
9649 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9650 mono_mb_emit_byte (mb, CEE_LDIND_I);
9651 mono_mb_emit_stloc (mb, aklass);
9653 /* vklass = value->vtable->klass */
9654 mono_mb_emit_ldarg (mb, 2);
9655 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9656 mono_mb_emit_byte (mb, CEE_LDIND_I);
9657 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9658 mono_mb_emit_byte (mb, CEE_LDIND_I);
9659 mono_mb_emit_stloc (mb, vklass);
9661 /* if (vklass->idepth < aklass->idepth) goto failue */
9662 mono_mb_emit_ldloc (mb, vklass);
9663 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9664 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9666 mono_mb_emit_ldloc (mb, aklass);
9667 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9668 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9670 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9672 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9673 mono_mb_emit_ldloc (mb, vklass);
9674 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9675 mono_mb_emit_byte (mb, CEE_LDIND_I);
9677 mono_mb_emit_ldloc (mb, aklass);
9678 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9679 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9680 mono_mb_emit_icon (mb, 1);
9681 mono_mb_emit_byte (mb, CEE_SUB);
9682 mono_mb_emit_icon (mb, sizeof (void*));
9683 mono_mb_emit_byte (mb, CEE_MUL);
9684 mono_mb_emit_byte (mb, CEE_ADD);
9685 mono_mb_emit_byte (mb, CEE_LDIND_I);
9687 mono_mb_emit_ldloc (mb, aklass);
9689 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9691 copy_pos = mono_mb_get_label (mb);
9693 mono_mb_patch_branch (mb, b1);
9694 mono_mb_emit_ldloc (mb, array_slot_addr);
9695 mono_mb_emit_ldarg (mb, 2);
9696 mono_mb_emit_byte (mb, CEE_STIND_REF);
9698 mono_mb_emit_byte (mb, CEE_RET);
9701 mono_mb_patch_branch (mb, b2);
9702 mono_mb_patch_branch (mb, b3);
9704 mono_mb_emit_ldarg (mb, 2);
9705 mono_mb_emit_ldloc (mb, aklass);
9706 mono_mb_emit_icall (mb, mono_object_isinst);
9708 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9709 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9710 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9712 mono_mb_emit_byte (mb, CEE_RET);
9714 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9715 ret = mono_mb_create (mb, sig, 4, info);
9722 * mono_marshal_get_gsharedvt_in_wrapper:
9724 * This wrapper handles calls from normal code to gsharedvt code.
9726 * The wrapper info for the wrapper is a WrapperInfo structure.
9729 mono_marshal_get_gsharedvt_in_wrapper (void)
9731 static MonoMethod* ret = NULL;
9732 MonoMethodSignature *sig;
9733 MonoMethodBuilder *mb;
9739 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9741 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9742 sig->ret = &mono_defaults.void_class->byval_arg;
9746 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9748 mono_mb_emit_byte (mb, CEE_RET);
9750 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9751 ret = mono_mb_create (mb, sig, 4, info);
9758 * mono_marshal_get_gsharedvt_out_wrapper:
9760 * This wrapper handles calls from gsharedvt code to normal code.
9762 * The wrapper info for the wrapper is a WrapperInfo structure.
9765 mono_marshal_get_gsharedvt_out_wrapper (void)
9767 static MonoMethod* ret = NULL;
9768 MonoMethodSignature *sig;
9769 MonoMethodBuilder *mb;
9775 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9777 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9778 sig->ret = &mono_defaults.void_class->byval_arg;
9782 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9784 mono_mb_emit_byte (mb, CEE_RET);
9786 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9787 ret = mono_mb_create (mb, sig, 4, info);
9799 /* LOCKING: vars accessed under the marshal lock */
9800 static ArrayElemAddr *elem_addr_cache = NULL;
9801 static int elem_addr_cache_size = 0;
9802 static int elem_addr_cache_next = 0;
9805 * mono_marshal_get_array_address:
9806 * @rank: rank of the array type
9807 * @elem_size: size in bytes of an element of an array.
9809 * Returns a MonoMethod that implements the code to get the address
9810 * of an element in a multi-dimenasional array of @rank dimensions.
9811 * The returned method takes an array as the first argument and then
9812 * @rank indexes for the @rank dimensions.
9813 * If ELEM_SIZE is 0, read the array size from the array object.
9816 mono_marshal_get_array_address (int rank, int elem_size)
9819 MonoMethodBuilder *mb;
9820 MonoMethodSignature *sig;
9823 int i, bounds, ind, realidx;
9824 int branch_pos, *branch_positions;
9828 mono_marshal_lock ();
9829 for (i = 0; i < elem_addr_cache_next; ++i) {
9830 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9831 ret = elem_addr_cache [i].method;
9835 mono_marshal_unlock ();
9839 branch_positions = g_new0 (int, rank);
9841 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9843 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9844 sig->ret = &mono_defaults.int_class->byval_arg;
9845 sig->params [0] = &mono_defaults.object_class->byval_arg;
9846 for (i = 0; i < rank; ++i) {
9847 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9850 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9851 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9855 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9856 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9857 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9859 /* bounds = array->bounds; */
9860 mono_mb_emit_ldarg (mb, 0);
9861 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9862 mono_mb_emit_byte (mb, CEE_LDIND_I);
9863 mono_mb_emit_stloc (mb, bounds);
9865 /* ind is the overall element index, realidx is the partial index in a single dimension */
9866 /* ind = idx0 - bounds [0].lower_bound */
9867 mono_mb_emit_ldarg (mb, 1);
9868 mono_mb_emit_ldloc (mb, bounds);
9869 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9870 mono_mb_emit_byte (mb, CEE_ADD);
9871 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9872 mono_mb_emit_byte (mb, CEE_SUB);
9873 mono_mb_emit_stloc (mb, ind);
9874 /* if (ind >= bounds [0].length) goto exeception; */
9875 mono_mb_emit_ldloc (mb, ind);
9876 mono_mb_emit_ldloc (mb, bounds);
9877 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9878 mono_mb_emit_byte (mb, CEE_ADD);
9879 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9880 /* note that we use unsigned comparison */
9881 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9883 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9884 * We could also decide to ignore the passed elem_size and get it
9885 * from the array object, to reduce the number of methods we generate:
9886 * the additional cost is 3 memory loads and a non-immediate mul.
9888 for (i = 1; i < rank; ++i) {
9889 /* realidx = idxi - bounds [i].lower_bound */
9890 mono_mb_emit_ldarg (mb, 1 + i);
9891 mono_mb_emit_ldloc (mb, bounds);
9892 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9893 mono_mb_emit_byte (mb, CEE_ADD);
9894 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9895 mono_mb_emit_byte (mb, CEE_SUB);
9896 mono_mb_emit_stloc (mb, realidx);
9897 /* if (realidx >= bounds [i].length) goto exeception; */
9898 mono_mb_emit_ldloc (mb, realidx);
9899 mono_mb_emit_ldloc (mb, bounds);
9900 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9901 mono_mb_emit_byte (mb, CEE_ADD);
9902 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9903 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9904 /* ind = ind * bounds [i].length + realidx */
9905 mono_mb_emit_ldloc (mb, ind);
9906 mono_mb_emit_ldloc (mb, bounds);
9907 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9908 mono_mb_emit_byte (mb, CEE_ADD);
9909 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9910 mono_mb_emit_byte (mb, CEE_MUL);
9911 mono_mb_emit_ldloc (mb, realidx);
9912 mono_mb_emit_byte (mb, CEE_ADD);
9913 mono_mb_emit_stloc (mb, ind);
9916 /* return array->vector + ind * element_size */
9917 mono_mb_emit_ldarg (mb, 0);
9918 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9919 mono_mb_emit_ldloc (mb, ind);
9921 mono_mb_emit_icon (mb, elem_size);
9923 /* Load arr->vtable->klass->sizes.element_class */
9924 mono_mb_emit_ldarg (mb, 0);
9925 mono_mb_emit_byte (mb, CEE_CONV_I);
9926 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9927 mono_mb_emit_byte (mb, CEE_ADD);
9928 mono_mb_emit_byte (mb, CEE_LDIND_I);
9929 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9930 mono_mb_emit_byte (mb, CEE_ADD);
9931 mono_mb_emit_byte (mb, CEE_LDIND_I);
9932 /* sizes is an union, so this reads sizes.element_size */
9933 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9934 mono_mb_emit_byte (mb, CEE_ADD);
9935 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9937 mono_mb_emit_byte (mb, CEE_MUL);
9938 mono_mb_emit_byte (mb, CEE_ADD);
9939 mono_mb_emit_byte (mb, CEE_RET);
9941 /* patch the branches to get here and throw */
9942 for (i = 1; i < rank; ++i) {
9943 mono_mb_patch_branch (mb, branch_positions [i]);
9945 mono_mb_patch_branch (mb, branch_pos);
9946 /* throw exception */
9947 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9949 g_free (branch_positions);
9950 #endif /* DISABLE_JIT */
9952 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
9953 info->d.element_addr.rank = rank;
9954 info->d.element_addr.elem_size = elem_size;
9955 ret = mono_mb_create (mb, sig, 4, info);
9958 /* cache the result */
9960 mono_marshal_lock ();
9961 for (i = 0; i < elem_addr_cache_next; ++i) {
9962 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9963 /* FIXME: free ret */
9964 ret = elem_addr_cache [i].method;
9970 if (elem_addr_cache_next >= elem_addr_cache_size) {
9971 int new_size = elem_addr_cache_size + 4;
9972 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9973 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9974 g_free (elem_addr_cache);
9975 elem_addr_cache = new_array;
9976 elem_addr_cache_size = new_size;
9978 elem_addr_cache [elem_addr_cache_next].rank = rank;
9979 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9980 elem_addr_cache [elem_addr_cache_next].method = ret;
9981 elem_addr_cache_next ++;
9983 mono_marshal_unlock ();
9988 * mono_marshal_get_array_accessor_wrapper:
9990 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
9993 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
9995 MonoMethodSignature *sig;
9996 MonoMethodBuilder *mb;
10000 MonoGenericContext *ctx = NULL;
10001 MonoMethod *orig_method = NULL;
10002 MonoGenericContainer *container = NULL;
10006 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10007 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10008 * FIXME: Use generic methods.
10015 g_assert_not_reached ();
10017 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10018 if ((res = mono_marshal_find_in_cache (cache, method)))
10022 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10025 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10027 #ifndef DISABLE_JIT
10028 /* Call the method */
10030 mono_mb_emit_ldarg (mb, 0);
10031 for (i = 0; i < sig->param_count; i++)
10032 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10036 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10037 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10039 mono_mb_emit_managed_call (mb, method, NULL);
10041 mono_mb_emit_byte (mb, CEE_RET);
10044 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10045 info->d.array_accessor.method = method;
10049 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10050 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10052 res = mono_mb_create_and_cache_full (cache, method,
10053 mb, sig, sig->param_count + 16,
10062 mono_marshal_alloc (gulong size, MonoError *error)
10066 mono_error_init (error);
10069 res = CoTaskMemAlloc (size);
10071 res = g_try_malloc ((gulong)size);
10073 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10079 ves_icall_marshal_alloc (gulong size)
10082 void *ret = mono_marshal_alloc (size, &error);
10083 mono_error_raise_exception (&error);
10089 mono_marshal_free (gpointer ptr)
10092 CoTaskMemFree (ptr);
10099 mono_marshal_free_array (gpointer *ptr, int size)
10106 for (i = 0; i < size; i++)
10112 mono_marshal_string_to_utf16 (MonoString *s)
10114 return s ? mono_string_chars (s) : NULL;
10118 mono_marshal_string_to_utf16_copy (MonoString *s)
10124 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10125 mono_error_raise_exception (&error); /* FIXME don't raise here */
10126 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10127 res [mono_string_length (s)] = 0;
10133 * mono_marshal_set_last_error:
10135 * This function is invoked to set the last error value from a P/Invoke call
10136 * which has SetLastError set.
10139 mono_marshal_set_last_error (void)
10142 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10144 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10149 mono_marshal_set_last_error_windows (int error)
10152 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10157 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10158 gpointer dest, gint32 length)
10163 MONO_CHECK_ARG_NULL (src,);
10164 MONO_CHECK_ARG_NULL (dest,);
10166 if (src->obj.vtable->klass->rank != 1) {
10167 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10170 if (start_index < 0) {
10171 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10175 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10178 if (start_index + length > mono_array_length (src)) {
10179 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10183 element_size = mono_array_element_size (src->obj.vtable->klass);
10185 /* no references should be involved */
10186 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10188 memcpy (dest, source_addr, length * element_size);
10192 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10193 MonoArray *dest, gint32 length)
10198 MONO_CHECK_ARG_NULL (src,);
10199 MONO_CHECK_ARG_NULL (dest,);
10201 if (dest->obj.vtable->klass->rank != 1) {
10202 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10205 if (start_index < 0) {
10206 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10210 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10213 if (start_index + length > mono_array_length (dest)) {
10214 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10217 element_size = mono_array_element_size (dest->obj.vtable->klass);
10219 /* no references should be involved */
10220 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10222 memcpy (dest_addr, src, length * element_size);
10226 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10231 return mono_string_new (mono_domain_get (), ptr);
10235 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10238 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10241 return mono_string_new_len (mono_domain_get (), ptr, len);
10246 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10248 MonoDomain *domain = mono_domain_get ();
10258 return mono_string_new_utf16 (domain, ptr, len);
10262 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10264 MonoDomain *domain = mono_domain_get ();
10267 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10270 return mono_string_new_utf16 (domain, ptr, len);
10275 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10277 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10281 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10287 MONO_CHECK_ARG_NULL (rtype, 0);
10289 type = rtype->type;
10290 klass = mono_class_from_mono_type (type);
10291 if (!mono_class_init (klass)) {
10292 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10296 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10298 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10299 return sizeof (gpointer);
10300 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10302 MonoException *exc;
10304 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10305 exc = mono_get_exception_argument ("t", msg);
10307 mono_set_pending_exception (exc);
10311 return mono_class_native_size (klass, NULL);
10315 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10317 MonoMethod *method;
10320 MONO_CHECK_ARG_NULL (obj,);
10321 MONO_CHECK_ARG_NULL (dst,);
10323 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10327 pa [2] = &delete_old;
10329 mono_runtime_invoke (method, NULL, pa, NULL);
10333 ptr_to_structure (gpointer src, MonoObject *dst)
10335 MonoMethod *method;
10338 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10343 mono_runtime_invoke (method, NULL, pa, NULL);
10347 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10351 MONO_CHECK_ARG_NULL (src,);
10352 MONO_CHECK_ARG_NULL (dst,);
10354 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10356 if (t->type == MONO_TYPE_VALUETYPE) {
10357 MonoException *exc;
10360 tmp = g_strdup_printf ("Destination is a boxed value type.");
10361 exc = mono_get_exception_argument ("dst", tmp);
10364 mono_set_pending_exception (exc);
10368 ptr_to_structure (src, dst);
10372 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10375 MonoDomain *domain = mono_domain_get ();
10380 MONO_CHECK_ARG_NULL (type, NULL);
10382 klass = mono_class_from_mono_type (type->type);
10383 if (!mono_class_init (klass)) {
10384 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10388 res = mono_object_new (domain, klass);
10390 ptr_to_structure (src, res);
10396 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10398 MonoMarshalType *info;
10401 int match_index = -1;
10403 MONO_CHECK_ARG_NULL (type, 0);
10404 MONO_CHECK_ARG_NULL (field_name, 0);
10406 fname = mono_string_to_utf8 (field_name);
10407 klass = mono_class_from_mono_type (type->type);
10408 if (!mono_class_init (klass)) {
10409 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10413 while (klass && match_index == -1) {
10414 MonoClassField* field;
10416 gpointer iter = NULL;
10417 while ((field = mono_class_get_fields (klass, &iter))) {
10418 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10420 if (!strcmp (fname, mono_field_get_name (field))) {
10427 if (match_index == -1)
10428 klass = klass->parent;
10433 if(match_index == -1) {
10434 MonoException* exc;
10437 /* Get back original class instance */
10438 klass = mono_class_from_mono_type (type->type);
10440 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10441 exc = mono_get_exception_argument ("fieldName", tmp);
10444 mono_set_pending_exception ((MonoException*)exc);
10448 info = mono_marshal_load_type_info (klass);
10449 return info->fields [match_index].offset;
10453 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10458 tres = mono_string_to_utf8 (string);
10462 len = strlen (tres) + 1;
10463 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10464 memcpy (ret, tres, len);
10469 return mono_string_to_utf8 (string);
10474 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10476 if (string == NULL)
10479 #ifdef TARGET_WIN32
10480 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10481 ((mono_string_length (string) + 1) * 2);
10483 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10485 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10486 res [mono_string_length (string)] = 0;
10492 mono_struct_delete_old (MonoClass *klass, char *ptr)
10494 MonoMarshalType *info;
10497 info = mono_marshal_load_type_info (klass);
10499 for (i = 0; i < info->num_fields; i++) {
10500 MonoMarshalConv conv;
10501 MonoType *ftype = info->fields [i].field->type;
10504 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10507 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10508 klass->unicode, &conv);
10510 cpos = ptr + info->fields [i].offset;
10513 case MONO_MARSHAL_CONV_NONE:
10514 if (MONO_TYPE_ISSTRUCT (ftype)) {
10515 mono_struct_delete_old (ftype->data.klass, cpos);
10519 case MONO_MARSHAL_CONV_STR_LPWSTR:
10520 /* We assume this field points inside a MonoString */
10522 case MONO_MARSHAL_CONV_STR_LPTSTR:
10523 #ifdef TARGET_WIN32
10524 /* We assume this field points inside a MonoString
10528 case MONO_MARSHAL_CONV_STR_LPSTR:
10529 case MONO_MARSHAL_CONV_STR_BSTR:
10530 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10531 case MONO_MARSHAL_CONV_STR_TBSTR:
10532 mono_marshal_free (*(gpointer *)cpos);
10542 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10546 MONO_CHECK_ARG_NULL (src,);
10547 MONO_CHECK_ARG_NULL (type,);
10549 klass = mono_class_from_mono_type (type->type);
10550 if (!mono_class_init (klass)) {
10551 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10555 mono_struct_delete_old (klass, (char *)src);
10559 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10562 size_t s = (size_t)size;
10565 /* This returns a valid pointer for size 0 on MS.NET */
10569 res = GlobalAlloc (GMEM_FIXED, s);
10571 res = g_try_malloc (s);
10574 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10580 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10583 size_t s = (size_t)size;
10586 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10591 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10593 res = g_try_realloc (ptr, s);
10596 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10602 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10612 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10617 res = CoTaskMemAlloc (size);
10619 if ((gulong)size == 0)
10620 /* This returns a valid pointer for size 0 on MS.NET */
10623 res = g_try_malloc ((gulong)size);
10626 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10631 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10634 CoTaskMemFree (ptr);
10641 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10646 res = CoTaskMemRealloc (ptr, size);
10648 res = g_try_realloc (ptr, (gulong)size);
10651 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10656 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10658 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10662 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10664 MonoClass *klass = mono_type_get_class (type->type);
10665 if (!mono_class_init (klass)) {
10666 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10670 return mono_ftnptr_to_delegate (klass, ftn);
10674 * mono_marshal_is_loading_type_info:
10676 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10680 mono_marshal_is_loading_type_info (MonoClass *klass)
10682 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10684 return g_slist_find (loads_list, klass) != NULL;
10688 * mono_marshal_load_type_info:
10690 * Initialize klass->marshal_info using information from metadata. This function can
10691 * recursively call itself, and the caller is responsible to avoid that by calling
10692 * mono_marshal_is_loading_type_info () beforehand.
10694 * LOCKING: Acquires the loader lock.
10697 mono_marshal_load_type_info (MonoClass* klass)
10700 guint32 native_size = 0, min_align = 1, packing;
10701 MonoMarshalType *info;
10702 MonoClassField* field;
10705 GSList *loads_list;
10707 g_assert (klass != NULL);
10709 if (klass->marshal_info)
10710 return klass->marshal_info;
10712 if (!klass->inited)
10713 mono_class_init (klass);
10715 if (klass->marshal_info)
10716 return klass->marshal_info;
10719 * This function can recursively call itself, so we keep the list of classes which are
10720 * under initialization in a TLS list.
10722 g_assert (!mono_marshal_is_loading_type_info (klass));
10723 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10724 loads_list = g_slist_prepend (loads_list, klass);
10725 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10728 while ((field = mono_class_get_fields (klass, &iter))) {
10729 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10731 if (mono_field_is_deleted (field))
10736 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10738 /* The mempool is protected by the loader lock */
10739 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10740 info->num_fields = count;
10742 /* Try to find a size for this type in metadata */
10743 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10745 if (klass->parent) {
10746 int parent_size = mono_class_native_size (klass->parent, NULL);
10748 /* Add parent size to real size */
10749 native_size += parent_size;
10750 info->native_size = parent_size;
10753 packing = klass->packing_size ? klass->packing_size : 8;
10756 while ((field = mono_class_get_fields (klass, &iter))) {
10760 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10763 if (mono_field_is_deleted (field))
10765 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10766 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10767 NULL, NULL, &info->fields [j].mspec);
10769 info->fields [j].field = field;
10771 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10772 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10773 /* This field is a hack inserted by MCS to empty structures */
10778 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10779 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10780 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10781 &align, TRUE, klass->unicode);
10782 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10783 min_align = MAX (align, min_align);
10784 info->fields [j].offset = info->native_size;
10785 info->fields [j].offset += align - 1;
10786 info->fields [j].offset &= ~(align - 1);
10787 info->native_size = info->fields [j].offset + size;
10789 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10790 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10791 &align, TRUE, klass->unicode);
10792 min_align = MAX (align, min_align);
10793 info->fields [j].offset = field->offset - sizeof (MonoObject);
10794 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10800 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10801 info->native_size = MAX (native_size, info->native_size);
10803 * If the provided Size is equal or larger than the calculated size, and there
10804 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10806 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10807 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10810 min_align = MIN (min_align, packing);
10814 if (info->native_size & (min_align - 1)) {
10815 info->native_size += min_align - 1;
10816 info->native_size &= ~(min_align - 1);
10819 info->min_align = min_align;
10821 /* Update the class's blittable info, if the layouts don't match */
10822 if (info->native_size != mono_class_value_size (klass, NULL))
10823 klass->blittable = FALSE;
10825 /* If this is an array type, ensure that we have element info */
10826 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10827 mono_marshal_load_type_info (klass->element_class);
10830 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10831 loads_list = g_slist_remove (loads_list, klass);
10832 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10834 mono_marshal_lock ();
10835 if (!klass->marshal_info) {
10836 /*We do double-checking locking on marshal_info */
10837 mono_memory_barrier ();
10838 klass->marshal_info = info;
10840 mono_marshal_unlock ();
10842 return klass->marshal_info;
10846 * mono_class_native_size:
10849 * Returns: the native size of an object instance (when marshaled
10850 * to unmanaged code)
10853 mono_class_native_size (MonoClass *klass, guint32 *align)
10855 if (!klass->marshal_info) {
10856 if (mono_marshal_is_loading_type_info (klass)) {
10861 mono_marshal_load_type_info (klass);
10866 *align = klass->marshal_info->min_align;
10868 return klass->marshal_info->native_size;
10872 * mono_type_native_stack_size:
10873 * @t: the type to return the size it uses on the stack
10875 * Returns: the number of bytes required to hold an instance of this
10876 * type on the native stack
10879 mono_type_native_stack_size (MonoType *t, guint32 *align)
10883 g_assert (t != NULL);
10889 *align = sizeof (gpointer);
10890 return sizeof (gpointer);
10894 case MONO_TYPE_BOOLEAN:
10895 case MONO_TYPE_CHAR:
10906 case MONO_TYPE_STRING:
10907 case MONO_TYPE_OBJECT:
10908 case MONO_TYPE_CLASS:
10909 case MONO_TYPE_SZARRAY:
10910 case MONO_TYPE_PTR:
10911 case MONO_TYPE_FNPTR:
10912 case MONO_TYPE_ARRAY:
10913 *align = sizeof (gpointer);
10914 return sizeof (gpointer);
10919 *align = MONO_ABI_ALIGNOF (double);
10923 *align = MONO_ABI_ALIGNOF (gint64);
10925 case MONO_TYPE_GENERICINST:
10926 if (!mono_type_generic_inst_is_valuetype (t)) {
10927 *align = sizeof (gpointer);
10928 return sizeof (gpointer);
10931 case MONO_TYPE_TYPEDBYREF:
10932 case MONO_TYPE_VALUETYPE: {
10934 MonoClass *klass = mono_class_from_mono_type (t);
10936 if (klass->enumtype)
10937 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
10939 size = mono_class_native_size (klass, align);
10940 *align = *align + 3;
10950 g_error ("type 0x%02x unknown", t->type);
10956 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10957 gboolean as_field, gboolean unicode)
10959 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10962 switch (native_type) {
10963 case MONO_NATIVE_BOOLEAN:
10966 case MONO_NATIVE_I1:
10967 case MONO_NATIVE_U1:
10970 case MONO_NATIVE_I2:
10971 case MONO_NATIVE_U2:
10972 case MONO_NATIVE_VARIANTBOOL:
10975 case MONO_NATIVE_I4:
10976 case MONO_NATIVE_U4:
10977 case MONO_NATIVE_ERROR:
10980 case MONO_NATIVE_I8:
10981 case MONO_NATIVE_U8:
10982 *align = MONO_ABI_ALIGNOF (gint64);
10984 case MONO_NATIVE_R4:
10987 case MONO_NATIVE_R8:
10988 *align = MONO_ABI_ALIGNOF (double);
10990 case MONO_NATIVE_INT:
10991 case MONO_NATIVE_UINT:
10992 case MONO_NATIVE_LPSTR:
10993 case MONO_NATIVE_LPWSTR:
10994 case MONO_NATIVE_LPTSTR:
10995 case MONO_NATIVE_BSTR:
10996 case MONO_NATIVE_ANSIBSTR:
10997 case MONO_NATIVE_TBSTR:
10998 case MONO_NATIVE_LPARRAY:
10999 case MONO_NATIVE_SAFEARRAY:
11000 case MONO_NATIVE_IUNKNOWN:
11001 case MONO_NATIVE_IDISPATCH:
11002 case MONO_NATIVE_INTERFACE:
11003 case MONO_NATIVE_ASANY:
11004 case MONO_NATIVE_FUNC:
11005 case MONO_NATIVE_LPSTRUCT:
11006 *align = MONO_ABI_ALIGNOF (gpointer);
11007 return sizeof (gpointer);
11008 case MONO_NATIVE_STRUCT:
11009 klass = mono_class_from_mono_type (type);
11010 if (klass == mono_defaults.object_class &&
11011 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11015 return mono_class_native_size (klass, align);
11016 case MONO_NATIVE_BYVALTSTR: {
11017 int esize = unicode ? 2: 1;
11020 return mspec->data.array_data.num_elem * esize;
11022 case MONO_NATIVE_BYVALARRAY: {
11023 // FIXME: Have to consider ArraySubType
11025 klass = mono_class_from_mono_type (type);
11026 if (klass->element_class == mono_defaults.char_class) {
11027 esize = unicode ? 2 : 1;
11030 esize = mono_class_native_size (klass->element_class, align);
11033 return mspec->data.array_data.num_elem * esize;
11035 case MONO_NATIVE_CUSTOM:
11036 *align = sizeof (gpointer);
11037 return sizeof (gpointer);
11039 case MONO_NATIVE_CURRENCY:
11040 case MONO_NATIVE_VBBYREFSTR:
11042 g_error ("native type %02x not implemented", native_type);
11045 g_assert_not_reached ();
11050 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11059 t = &o->vtable->klass->byval_arg;
11063 case MONO_TYPE_PTR:
11066 case MONO_TYPE_BOOLEAN:
11069 case MONO_TYPE_CHAR:
11074 return mono_object_unbox (o);
11076 case MONO_TYPE_STRING:
11077 switch (string_encoding) {
11078 case MONO_NATIVE_LPWSTR:
11079 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11081 case MONO_NATIVE_LPSTR:
11082 return mono_string_to_lpstr ((MonoString*)o);
11085 g_warning ("marshaling conversion %d not implemented", string_encoding);
11086 g_assert_not_reached ();
11089 case MONO_TYPE_CLASS:
11090 case MONO_TYPE_VALUETYPE: {
11091 MonoMethod *method;
11094 MonoBoolean delete_old = FALSE;
11096 klass = t->data.klass;
11098 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11101 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11102 klass->blittable || klass->enumtype))
11103 return mono_object_unbox (o);
11105 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11106 mono_error_raise_exception (&error); /* FIXME don't raise here */
11108 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11109 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11113 pa [2] = &delete_old;
11115 mono_runtime_invoke (method, NULL, pa, NULL);
11123 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11128 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11136 t = &o->vtable->klass->byval_arg;
11138 case MONO_TYPE_STRING:
11139 switch (string_encoding) {
11140 case MONO_NATIVE_LPWSTR:
11141 case MONO_NATIVE_LPSTR:
11142 mono_marshal_free (ptr);
11145 g_warning ("marshaling conversion %d not implemented", string_encoding);
11146 g_assert_not_reached ();
11149 case MONO_TYPE_CLASS:
11150 case MONO_TYPE_VALUETYPE: {
11151 klass = t->data.klass;
11153 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11154 klass->blittable || klass->enumtype))
11157 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11158 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11164 mono_runtime_invoke (method, NULL, pa, NULL);
11167 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11168 mono_struct_delete_old (klass, (char *)ptr);
11171 mono_marshal_free (ptr);
11180 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11182 MonoMethodSignature *sig, *csig;
11183 MonoMethodBuilder *mb;
11188 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11189 mb->method->slot = -1;
11191 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11192 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11194 sig = mono_method_signature (method);
11195 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11196 csig->generic_param_count = 0;
11198 #ifndef DISABLE_JIT
11199 mono_mb_emit_ldarg (mb, 0);
11200 for (i = 0; i < csig->param_count; i++)
11201 mono_mb_emit_ldarg (mb, i + 1);
11202 mono_mb_emit_managed_call (mb, method, NULL);
11203 mono_mb_emit_byte (mb, CEE_RET);
11205 /* We can corlib internal methods */
11206 mb->skip_visibility = TRUE;
11208 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11209 info->d.generic_array_helper.method = method;
11210 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11218 * The mono_win32_compat_* functions are implementations of inline
11219 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11220 * although not exported by kernel32.
11222 * We map the appropiate kernel32 entries to these functions using
11223 * dllmaps declared in the global etc/mono/config.
11227 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11229 if (!dest || !source)
11232 memcpy (dest, source, length);
11236 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11238 memset (dest, fill, length);
11242 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11244 if (!dest || !source)
11247 memmove (dest, source, length);
11251 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11253 memset (dest, 0, length);
11257 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11262 for (i = 0; i < len; ++i)
11266 g_assert (i < len);
11269 while (byte && !(byte & 1))
11271 g_assert (byte == 1);
11274 *bitmask = buf [i];
11278 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11280 MonoMethodBuilder *mb;
11281 MonoMethodSignature *sig, *csig;
11282 MonoExceptionClause *clause;
11287 int i, param_count, sig_size, pos_leave;
11288 int coop_gc_var, coop_gc_dummy_local;
11292 klass = method->klass;
11293 image = method->klass->image;
11295 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11297 if ((res = mono_marshal_find_in_cache (cache, method)))
11300 sig = mono_method_signature (method);
11301 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11303 /* add "this" and exception param */
11304 param_count = sig->param_count + sig->hasthis + 1;
11306 /* dup & extend signature */
11307 csig = mono_metadata_signature_alloc (image, param_count);
11308 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11309 memcpy (csig, sig, sig_size);
11310 csig->param_count = param_count;
11313 csig->call_convention = MONO_CALL_DEFAULT;
11315 if (sig->hasthis) {
11317 csig->params [0] = &klass->byval_arg;
11318 /* move params up by one */
11319 for (i = 0; i < sig->param_count; i++)
11320 csig->params [i + 1] = sig->params [i];
11323 /* setup exception param as byref+[out] */
11324 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11325 &mono_defaults.exception_class->byval_arg);
11326 csig->params [param_count - 1]->byref = 1;
11327 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11329 /* convert struct return to object */
11330 if (MONO_TYPE_ISSTRUCT (sig->ret))
11331 csig->ret = &mono_defaults.object_class->byval_arg;
11333 #ifndef DISABLE_JIT
11334 /* local 0 (temp for exception object) */
11335 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11337 /* local 1 (temp for result) */
11338 if (!MONO_TYPE_IS_VOID (sig->ret))
11339 mono_mb_add_local (mb, sig->ret);
11341 if (mono_threads_is_coop_enabled ()) {
11342 /* local 4, the local to be used when calling the reset_blocking funcs */
11343 /* tons of code hardcode 3 to be the return var */
11344 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11345 /* local 5, the local used to get a stack address for suspend funcs */
11346 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11349 /* clear exception arg */
11350 mono_mb_emit_ldarg (mb, param_count - 1);
11351 mono_mb_emit_byte (mb, CEE_LDNULL);
11352 mono_mb_emit_byte (mb, CEE_STIND_REF);
11354 if (mono_threads_is_coop_enabled ()) {
11355 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11356 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11357 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11358 mono_mb_emit_stloc (mb, coop_gc_var);
11362 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11363 clause->try_offset = mono_mb_get_label (mb);
11365 /* push method's args */
11366 for (i = 0; i < param_count - 1; i++) {
11370 mono_mb_emit_ldarg (mb, i);
11372 /* get the byval type of the param */
11373 klass = mono_class_from_mono_type (csig->params [i]);
11374 type = &klass->byval_arg;
11376 /* unbox struct args */
11377 if (MONO_TYPE_ISSTRUCT (type)) {
11378 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11380 /* byref args & and the "this" arg must remain a ptr.
11381 Otherwise make a copy of the value type */
11382 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11383 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11385 csig->params [i] = &mono_defaults.object_class->byval_arg;
11390 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11391 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11393 mono_mb_emit_op (mb, CEE_CALL, method);
11395 /* save result at local 1 */
11396 if (!MONO_TYPE_IS_VOID (sig->ret))
11397 mono_mb_emit_stloc (mb, 1);
11399 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11402 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11403 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11404 clause->data.catch_class = mono_defaults.object_class;
11406 clause->handler_offset = mono_mb_get_label (mb);
11408 /* store exception at local 0 */
11409 mono_mb_emit_stloc (mb, 0);
11410 mono_mb_emit_ldarg (mb, param_count - 1);
11411 mono_mb_emit_ldloc (mb, 0);
11412 mono_mb_emit_byte (mb, CEE_STIND_REF);
11413 mono_mb_emit_branch (mb, CEE_LEAVE);
11415 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11417 mono_mb_set_clauses (mb, 1, clause);
11419 mono_mb_patch_branch (mb, pos_leave);
11422 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11423 mono_mb_emit_ldloc (mb, 1);
11425 /* box the return value */
11426 if (MONO_TYPE_ISSTRUCT (sig->ret))
11427 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11430 if (mono_threads_is_coop_enabled ()) {
11431 /* XXX merge reset_blocking_end with detach */
11432 mono_mb_emit_ldloc (mb, coop_gc_var);
11433 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11434 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11437 mono_mb_emit_byte (mb, CEE_RET);
11440 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11447 * mono_marshal_free_dynamic_wrappers:
11449 * Free wrappers of the dynamic method METHOD.
11452 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11454 MonoImage *image = method->klass->image;
11456 g_assert (method_is_dynamic (method));
11458 /* This could be called during shutdown */
11459 if (marshal_mutex_initialized)
11460 mono_marshal_lock ();
11462 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11463 * they could be shared with other methods ?
11465 if (image->wrapper_caches.runtime_invoke_direct_cache)
11466 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11467 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11468 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11469 // FIXME: Need to clear the caches in other images as well
11470 if (image->delegate_bound_static_invoke_cache)
11471 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11473 if (marshal_mutex_initialized)
11474 mono_marshal_unlock ();