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 /* Lazy class loading functions */
147 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
148 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
149 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
150 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
152 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
153 static MonoMethod *sh_dangerous_add_ref;
154 static MonoMethod *sh_dangerous_release;
160 sh_dangerous_add_ref = mono_class_get_method_from_name (
161 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
162 sh_dangerous_release = mono_class_get_method_from_name (
163 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
167 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
169 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
171 mono_register_jit_icall (func, name, sig, save);
175 mono_signature_no_pinvoke (MonoMethod *method)
177 MonoMethodSignature *sig = mono_method_signature (method);
179 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
180 sig->pinvoke = FALSE;
187 mono_marshal_init_tls (void)
189 mono_native_tls_alloc (&last_error_tls_id, NULL);
190 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
194 mono_marshal_init (void)
196 static gboolean module_initialized = FALSE;
198 if (!module_initialized) {
199 module_initialized = TRUE;
200 mono_os_mutex_init_recursive (&marshal_mutex);
201 marshal_mutex_initialized = TRUE;
203 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
204 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
205 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
206 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
207 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
208 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
209 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
210 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
211 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
212 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
213 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
214 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
215 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
216 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
217 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
218 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
219 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
220 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
221 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
222 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
223 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
224 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
225 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
226 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
227 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
228 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
229 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
230 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
231 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
232 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
233 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
234 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
235 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
236 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
237 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
238 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
239 register_icall (g_free, "g_free", "void ptr", FALSE);
240 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
241 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
242 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
243 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
244 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
245 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
246 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
247 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
248 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
249 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
251 mono_cominterop_init ();
252 mono_remoting_init ();
254 if (mono_threads_is_coop_enabled ()) {
255 register_icall (mono_threads_prepare_blocking, "mono_threads_prepare_blocking", "ptr ptr", FALSE);
256 register_icall (mono_threads_finish_blocking, "mono_threads_finish_blocking", "void ptr ptr", FALSE);
257 register_icall (mono_threads_reset_blocking_start, "mono_threads_reset_blocking_start","ptr ptr", TRUE);
258 register_icall (mono_threads_reset_blocking_end, "mono_threads_reset_blocking_end","void ptr ptr", TRUE);
264 mono_marshal_cleanup (void)
266 mono_cominterop_cleanup ();
268 mono_native_tls_free (load_type_info_tls_id);
269 mono_native_tls_free (last_error_tls_id);
270 mono_os_mutex_destroy (&marshal_mutex);
271 marshal_mutex_initialized = FALSE;
275 mono_marshal_lock_internal (void)
277 mono_marshal_lock ();
281 mono_marshal_unlock_internal (void)
283 mono_marshal_unlock ();
287 mono_delegate_to_ftnptr (MonoDelegate *delegate)
289 MonoMethod *method, *wrapper;
291 uint32_t target_handle = 0;
296 if (delegate->delegate_trampoline)
297 return delegate->delegate_trampoline;
299 klass = ((MonoObject *)delegate)->vtable->klass;
300 g_assert (klass->delegate);
302 method = delegate->method;
303 if (delegate->method_is_virtual)
304 method = mono_object_get_virtual_method (delegate->target, method);
306 if (mono_method_signature (method)->pinvoke) {
307 const char *exc_class, *exc_arg;
310 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
312 g_assert (exc_class);
313 mono_raise_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
318 if (delegate->target) {
319 /* Produce a location which can be embedded in JITted code */
320 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
323 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
325 delegate->delegate_trampoline = mono_compile_method (wrapper);
327 // Add the delegate to the delegate hash table
328 delegate_hash_table_add (delegate);
330 /* when the object is collected, collect the dynamic method, too */
331 mono_object_register_finalizer ((MonoObject*)delegate);
333 return delegate->delegate_trampoline;
337 * this hash table maps from a delegate trampoline object to a weak reference
338 * of the delegate. As an optimizations with a non-moving GC we store the
339 * object pointer itself, otherwise we use a GC handle.
341 static GHashTable *delegate_hash_table;
344 delegate_hash_table_new (void) {
345 return g_hash_table_new (NULL, NULL);
349 delegate_hash_table_remove (MonoDelegate *d)
351 guint32 gchandle = 0;
353 mono_marshal_lock ();
354 if (delegate_hash_table == NULL)
355 delegate_hash_table = delegate_hash_table_new ();
356 if (mono_gc_is_moving ())
357 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
358 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
359 mono_marshal_unlock ();
360 if (gchandle && mono_gc_is_moving ())
361 mono_gchandle_free (gchandle);
365 delegate_hash_table_add (MonoDelegate *d)
368 guint32 old_gchandle;
370 mono_marshal_lock ();
371 if (delegate_hash_table == NULL)
372 delegate_hash_table = delegate_hash_table_new ();
373 if (mono_gc_is_moving ()) {
374 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
375 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
376 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
378 mono_gchandle_free (old_gchandle);
380 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
382 mono_marshal_unlock ();
386 * mono_marshal_use_aot_wrappers:
388 * Instructs this module to use AOT compatible wrappers.
391 mono_marshal_use_aot_wrappers (gboolean use)
393 use_aot_wrappers = use;
397 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
399 MonoCustomAttrInfo *cinfo;
400 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
402 /* The attribute is only available in Net 2.0 */
403 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
405 * The pinvoke attributes are stored in a real custom attribute so we have to
408 cinfo = mono_custom_attrs_from_class (klass);
409 if (cinfo && !mono_runtime_get_no_exec ()) {
411 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
413 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
415 if (!mono_error_ok (&error)) {
416 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
417 mono_error_cleanup (&error);
421 mono_custom_attrs_free (cinfo);
427 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
436 mono_marshal_lock ();
437 if (delegate_hash_table == NULL)
438 delegate_hash_table = delegate_hash_table_new ();
440 if (mono_gc_is_moving ()) {
441 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
442 mono_marshal_unlock ();
444 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
448 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
449 mono_marshal_unlock ();
452 /* This is a native function, so construct a delegate for it */
453 MonoMethodSignature *sig;
455 MonoMarshalSpec **mspecs;
456 MonoMethod *invoke = mono_get_delegate_invoke (klass);
457 MonoMethodPInvoke piinfo;
458 MonoObject *this_obj;
461 if (use_aot_wrappers) {
462 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
463 this_obj = mono_value_box (mono_domain_get (), mono_defaults.int_class, &ftn);
465 memset (&piinfo, 0, sizeof (piinfo));
466 parse_unmanaged_function_pointer_attr (klass, &piinfo);
468 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
469 mono_method_get_marshal_info (invoke, mspecs);
470 /* Freed below so don't alloc from mempool */
471 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
474 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
477 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
479 mono_metadata_free_marshal_spec (mspecs [i]);
484 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
485 mono_error_raise_exception (&error); /* FIXME don't raise here */
486 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, mono_compile_method (wrapper), wrapper);
489 if (d->object.vtable->domain != mono_domain_get ())
490 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
496 mono_delegate_free_ftnptr (MonoDelegate *delegate)
501 delegate_hash_table_remove (delegate);
503 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
505 if (!delegate->target) {
506 /* The wrapper method is shared between delegates -> no need to free it */
515 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
518 method = mono_jit_info_get_method (ji);
519 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
521 /*the target gchandle is the first entry after size and the wrapper itself.*/
522 gchandle = GPOINTER_TO_UINT (method_data [2]);
525 mono_gchandle_free (gchandle);
527 mono_runtime_free_method (mono_object_domain (delegate), method);
532 mono_string_from_byvalstr (const char *data, int max_len)
534 MonoDomain *domain = mono_domain_get ();
540 while (len < max_len - 1 && data [len])
543 return mono_string_new_len (domain, data, len);
547 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
550 MonoString *res = NULL;
551 MonoDomain *domain = mono_domain_get ();
557 while (data [len]) len++;
559 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
560 mono_error_raise_exception (&error);
565 mono_array_to_savearray (MonoArray *array)
570 g_assert_not_reached ();
575 mono_array_to_lparray (MonoArray *array)
578 gpointer *nativeArray = NULL;
579 int nativeArraySize = 0;
589 klass = array->obj.vtable->klass;
591 switch (klass->element_class->byval_arg.type) {
593 g_assert_not_reached ();
595 case MONO_TYPE_CLASS:
596 nativeArraySize = array->max_length;
597 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
598 for(i = 0; i < nativeArraySize; ++i)
599 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
602 case MONO_TYPE_BOOLEAN:
615 case MONO_TYPE_VALUETYPE:
619 case MONO_TYPE_GENERICINST:
620 case MONO_TYPE_OBJECT:
621 case MONO_TYPE_ARRAY:
622 case MONO_TYPE_SZARRAY:
623 case MONO_TYPE_STRING:
625 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
626 g_assert_not_reached ();
629 return array->vector;
633 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
644 klass = array->obj.vtable->klass;
646 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
647 for(i = 0; i < array->max_length; ++i)
648 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
655 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
657 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
659 if (elclass == mono_defaults.byte_class) {
660 GError *error = NULL;
664 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
667 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
671 g_error_free (error);
674 g_assert_not_reached ();
678 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
680 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
684 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
686 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
688 if (elclass == mono_defaults.byte_class) {
690 GError *error = NULL;
692 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
694 MonoException *exc = mono_get_exception_argument ("string", error->message);
695 g_error_free (error);
696 mono_raise_exception (exc);
699 memcpy (native_arr, as, MIN (strlen (as), elnum));
702 g_assert_not_reached ();
707 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
709 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
712 static MonoStringBuilder *
713 mono_string_builder_new (int starting_string_length)
715 static MonoClass *string_builder_class;
716 static MonoMethod *sb_ctor;
717 static void *args [1];
720 int initial_len = starting_string_length;
726 MonoMethodDesc *desc;
729 string_builder_class = mono_class_get_string_builder_class ();
730 g_assert (string_builder_class);
731 desc = mono_method_desc_new (":.ctor(int)", FALSE);
732 m = mono_method_desc_search_in_class (desc, string_builder_class);
734 mono_method_desc_free (desc);
735 mono_memory_barrier ();
739 // We make a new array in the _to_builder function, so this
740 // array will always be garbage collected.
741 args [0] = &initial_len;
743 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
744 mono_error_assert_ok (&error);
747 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
748 g_assert (exc == NULL);
749 mono_error_assert_ok (&error);
751 g_assert (sb->chunkChars->max_length >= initial_len);
757 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
759 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
760 gunichar2 *charSrc = (gunichar2 *)text;
761 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
763 sb->chunkLength = string_len;
769 mono_string_utf16_to_builder2 (gunichar2 *text)
775 for (len = 0; text [len] != 0; ++len);
777 MonoStringBuilder *sb = mono_string_builder_new (len);
778 mono_string_utf16_to_builder (sb, text);
784 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
789 int len = strlen (text);
790 if (len > mono_string_builder_capacity (sb))
791 len = mono_string_builder_capacity (sb);
793 GError *error = NULL;
795 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
798 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
799 mono_string_utf16_to_builder_copy (sb, ut, copied);
801 g_error_free (error);
807 mono_string_utf8_to_builder2 (char *text)
812 int len = strlen (text);
813 MonoStringBuilder *sb = mono_string_builder_new (len);
814 mono_string_utf8_to_builder (sb, text);
821 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
827 for (len = 0; text [len] != 0; ++len);
829 if (len > mono_string_builder_capacity (sb))
830 len = mono_string_builder_capacity (sb);
832 mono_string_utf16_to_builder_copy (sb, text, len);
836 * mono_string_builder_to_utf8:
837 * @sb: the string builder
839 * Converts to utf8 the contents of the MonoStringBuilder.
841 * Returns: a utf8 string with the contents of the StringBuilder.
843 * The return value must be released with g_free.
846 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
849 GError *gerror = NULL;
855 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
857 guint str_len = mono_string_builder_string_length (sb);
859 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
862 g_error_free (gerror);
864 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
867 guint len = mono_string_builder_capacity (sb) + 1;
868 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
869 if (!mono_error_ok (&error)) {
872 mono_error_raise_exception (&error);
875 g_assert (str_len < len);
876 memcpy (res, tmp, str_len * sizeof (gchar));
886 * mono_string_builder_to_utf16:
887 * @sb: the string builder
889 * Converts to utf16 the contents of the MonoStringBuilder.
891 * Returns: a utf16 string with the contents of the StringBuilder.
893 * The return value must not be freed.
896 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
903 g_assert (sb->chunkChars);
905 guint len = mono_string_builder_capacity (sb);
910 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
911 mono_error_raise_exception (&error);
918 MonoStringBuilder* chunk = sb;
920 if (chunk->chunkLength > 0) {
921 // Check that we will not overrun our boundaries.
922 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
924 if (chunk->chunkLength <= len) {
925 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
927 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
930 len -= chunk->chunkLength;
932 chunk = chunk->chunkPrevious;
933 } while (chunk != NULL);
939 mono_string_to_lpstr (MonoString *s)
944 GError *error = NULL;
950 as = CoTaskMemAlloc (1);
955 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
957 MonoException *exc = mono_get_exception_argument ("string", error->message);
958 g_error_free (error);
959 mono_raise_exception(exc);
962 as = CoTaskMemAlloc (len + 1);
963 memcpy (as, tmp, len + 1);
968 return mono_string_to_utf8 (s);
973 mono_string_to_ansibstr (MonoString *string_obj)
975 g_error ("UnmanagedMarshal.BStr is not implemented.");
980 * mono_string_to_byvalstr:
981 * @dst: Where to store the null-terminated utf8 decoded string.
982 * @src: the MonoString to copy.
983 * @size: the maximum number of bytes to copy.
985 * Copies the MonoString pointed to by @src as a utf8 string
986 * into @dst, it copies at most @size bytes into the destination.
989 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
994 g_assert (dst != NULL);
997 memset (dst, 0, size);
1001 s = mono_string_to_utf8 (src);
1002 len = MIN (size, strlen (s));
1005 memcpy (dst, s, len);
1010 * mono_string_to_byvalwstr:
1011 * @dst: Where to store the null-terminated utf16 decoded string.
1012 * @src: the MonoString to copy.
1013 * @size: the maximum number of bytes to copy.
1015 * Copies the MonoString pointed to by @src as a utf16 string into
1016 * @dst, it copies at most @size bytes into the destination (including
1017 * a terminating 16-bit zero terminator).
1020 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1024 g_assert (dst != NULL);
1025 g_assert (size > 1);
1028 memset (dst, 0, size * 2);
1032 len = MIN (size, (mono_string_length (src)));
1033 memcpy (dst, mono_string_chars (src), size * 2);
1034 if (size <= mono_string_length (src))
1036 *((gunichar2 *) dst + len) = 0;
1040 mono_string_new_len_wrapper (const char *text, guint length)
1042 return mono_string_new_len (mono_domain_get (), text, length);
1048 * mono_mb_emit_exception_marshal_directive:
1050 * This function assumes ownership of MSG, which should be malloc-ed.
1053 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1058 s = mono_image_strdup (mb->method->klass->image, msg);
1063 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1066 #endif /* !DISABLE_JIT */
1069 mono_type_to_ldind (MonoType *type)
1075 switch (type->type) {
1077 return CEE_LDIND_I1;
1079 case MONO_TYPE_BOOLEAN:
1080 return CEE_LDIND_U1;
1082 return CEE_LDIND_I2;
1084 case MONO_TYPE_CHAR:
1085 return CEE_LDIND_U2;
1087 return CEE_LDIND_I4;
1089 return CEE_LDIND_U4;
1093 case MONO_TYPE_FNPTR:
1095 case MONO_TYPE_CLASS:
1096 case MONO_TYPE_STRING:
1097 case MONO_TYPE_OBJECT:
1098 case MONO_TYPE_SZARRAY:
1099 case MONO_TYPE_ARRAY:
1100 return CEE_LDIND_REF;
1103 return CEE_LDIND_I8;
1105 return CEE_LDIND_R4;
1107 return CEE_LDIND_R8;
1108 case MONO_TYPE_VALUETYPE:
1109 if (type->data.klass->enumtype) {
1110 type = mono_class_enum_basetype (type->data.klass);
1114 case MONO_TYPE_TYPEDBYREF:
1116 case MONO_TYPE_GENERICINST:
1117 type = &type->data.generic_class->container_class->byval_arg;
1120 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1126 mono_type_to_stind (MonoType *type)
1132 switch (type->type) {
1135 case MONO_TYPE_BOOLEAN:
1136 return CEE_STIND_I1;
1139 case MONO_TYPE_CHAR:
1140 return CEE_STIND_I2;
1143 return CEE_STIND_I4;
1147 case MONO_TYPE_FNPTR:
1149 case MONO_TYPE_CLASS:
1150 case MONO_TYPE_STRING:
1151 case MONO_TYPE_OBJECT:
1152 case MONO_TYPE_SZARRAY:
1153 case MONO_TYPE_ARRAY:
1154 return CEE_STIND_REF;
1157 return CEE_STIND_I8;
1159 return CEE_STIND_R4;
1161 return CEE_STIND_R8;
1162 case MONO_TYPE_VALUETYPE:
1163 if (type->data.klass->enumtype) {
1164 type = mono_class_enum_basetype (type->data.klass);
1168 case MONO_TYPE_TYPEDBYREF:
1170 case MONO_TYPE_GENERICINST:
1171 type = &type->data.generic_class->container_class->byval_arg;
1174 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1182 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1185 case MONO_MARSHAL_CONV_BOOL_I4:
1186 mono_mb_emit_ldloc (mb, 1);
1187 mono_mb_emit_ldloc (mb, 0);
1188 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1189 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1190 mono_mb_emit_byte (mb, 3);
1191 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1192 mono_mb_emit_byte (mb, CEE_BR_S);
1193 mono_mb_emit_byte (mb, 1);
1194 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1195 mono_mb_emit_byte (mb, CEE_STIND_I1);
1197 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1198 mono_mb_emit_ldloc (mb, 1);
1199 mono_mb_emit_ldloc (mb, 0);
1200 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1201 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1202 mono_mb_emit_byte (mb, 3);
1203 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1204 mono_mb_emit_byte (mb, CEE_BR_S);
1205 mono_mb_emit_byte (mb, 1);
1206 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1207 mono_mb_emit_byte (mb, CEE_STIND_I1);
1209 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1210 MonoClass *eklass = NULL;
1213 if (type->type == MONO_TYPE_SZARRAY) {
1214 eklass = type->data.klass;
1216 g_assert_not_reached ();
1219 esize = mono_class_native_size (eklass, NULL);
1221 /* create a new array */
1222 mono_mb_emit_ldloc (mb, 1);
1223 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1224 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1225 mono_mb_emit_byte (mb, CEE_STIND_I);
1227 if (eklass->blittable) {
1228 /* copy the elements */
1229 mono_mb_emit_ldloc (mb, 1);
1230 mono_mb_emit_byte (mb, CEE_LDIND_I);
1231 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1232 mono_mb_emit_byte (mb, CEE_ADD);
1233 mono_mb_emit_ldloc (mb, 0);
1234 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1235 mono_mb_emit_byte (mb, CEE_PREFIX1);
1236 mono_mb_emit_byte (mb, CEE_CPBLK);
1239 int array_var, src_var, dst_var, index_var;
1240 guint32 label2, label3;
1242 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1243 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1244 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1247 mono_mb_emit_ldloc (mb, 1);
1248 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1249 mono_mb_emit_stloc (mb, array_var);
1251 /* save the old src pointer */
1252 mono_mb_emit_ldloc (mb, 0);
1253 mono_mb_emit_stloc (mb, src_var);
1254 /* save the old dst pointer */
1255 mono_mb_emit_ldloc (mb, 1);
1256 mono_mb_emit_stloc (mb, dst_var);
1258 /* Emit marshalling loop */
1259 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1260 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1261 mono_mb_emit_stloc (mb, index_var);
1264 label2 = mono_mb_get_label (mb);
1265 mono_mb_emit_ldloc (mb, index_var);
1266 mono_mb_emit_ldloc (mb, array_var);
1267 mono_mb_emit_byte (mb, CEE_LDLEN);
1268 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1270 /* src is already set */
1273 mono_mb_emit_ldloc (mb, array_var);
1274 mono_mb_emit_ldloc (mb, index_var);
1275 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1276 mono_mb_emit_stloc (mb, 1);
1278 /* Do the conversion */
1279 emit_struct_conv (mb, eklass, TRUE);
1282 mono_mb_emit_add_to_local (mb, index_var, 1);
1284 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1286 mono_mb_patch_branch (mb, label3);
1288 /* restore the old src pointer */
1289 mono_mb_emit_ldloc (mb, src_var);
1290 mono_mb_emit_stloc (mb, 0);
1291 /* restore the old dst pointer */
1292 mono_mb_emit_ldloc (mb, dst_var);
1293 mono_mb_emit_stloc (mb, 1);
1297 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1298 MonoClass *eclass = mono_defaults.char_class;
1300 /* create a new array */
1301 mono_mb_emit_ldloc (mb, 1);
1302 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1303 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1304 mono_mb_emit_byte (mb, CEE_STIND_REF);
1306 mono_mb_emit_ldloc (mb, 1);
1307 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1308 mono_mb_emit_ldloc (mb, 0);
1309 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1310 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1313 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1314 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1315 mono_mb_emit_ldloc (mb, 1);
1316 mono_mb_emit_ldloc (mb, 0);
1317 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1318 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1320 mono_mb_emit_ldloc (mb, 1);
1321 mono_mb_emit_ldloc (mb, 0);
1322 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1324 mono_mb_emit_byte (mb, CEE_STIND_REF);
1326 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1327 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1328 mono_mb_emit_ldloc (mb, 1);
1329 mono_mb_emit_ldloc (mb, 0);
1330 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1331 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1333 mono_mb_emit_ldloc (mb, 1);
1334 mono_mb_emit_ldloc (mb, 0);
1335 mono_mb_emit_icall (mb, mono_string_from_utf16);
1337 mono_mb_emit_byte (mb, CEE_STIND_REF);
1339 case MONO_MARSHAL_CONV_STR_LPTSTR:
1340 mono_mb_emit_ldloc (mb, 1);
1341 mono_mb_emit_ldloc (mb, 0);
1342 mono_mb_emit_byte (mb, CEE_LDIND_I);
1344 mono_mb_emit_icall (mb, mono_string_from_utf16);
1346 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1348 mono_mb_emit_byte (mb, CEE_STIND_REF);
1350 case MONO_MARSHAL_CONV_STR_LPSTR:
1351 mono_mb_emit_ldloc (mb, 1);
1352 mono_mb_emit_ldloc (mb, 0);
1353 mono_mb_emit_byte (mb, CEE_LDIND_I);
1354 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1355 mono_mb_emit_byte (mb, CEE_STIND_REF);
1357 case MONO_MARSHAL_CONV_STR_LPWSTR:
1358 mono_mb_emit_ldloc (mb, 1);
1359 mono_mb_emit_ldloc (mb, 0);
1360 mono_mb_emit_byte (mb, CEE_LDIND_I);
1361 mono_mb_emit_icall (mb, mono_string_from_utf16);
1362 mono_mb_emit_byte (mb, CEE_STIND_REF);
1364 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1365 MonoClass *klass = mono_class_from_mono_type (type);
1366 int src_var, dst_var;
1368 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1369 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1371 /* *dst = new object */
1372 mono_mb_emit_ldloc (mb, 1);
1373 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1374 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1375 mono_mb_emit_byte (mb, CEE_STIND_REF);
1377 /* save the old src pointer */
1378 mono_mb_emit_ldloc (mb, 0);
1379 mono_mb_emit_stloc (mb, src_var);
1380 /* save the old dst pointer */
1381 mono_mb_emit_ldloc (mb, 1);
1382 mono_mb_emit_stloc (mb, dst_var);
1384 /* dst = pointer to newly created object data */
1385 mono_mb_emit_ldloc (mb, 1);
1386 mono_mb_emit_byte (mb, CEE_LDIND_I);
1387 mono_mb_emit_icon (mb, sizeof (MonoObject));
1388 mono_mb_emit_byte (mb, CEE_ADD);
1389 mono_mb_emit_stloc (mb, 1);
1391 emit_struct_conv (mb, klass, TRUE);
1393 /* restore the old src pointer */
1394 mono_mb_emit_ldloc (mb, src_var);
1395 mono_mb_emit_stloc (mb, 0);
1396 /* restore the old dst pointer */
1397 mono_mb_emit_ldloc (mb, dst_var);
1398 mono_mb_emit_stloc (mb, 1);
1401 case MONO_MARSHAL_CONV_DEL_FTN: {
1402 MonoClass *klass = mono_class_from_mono_type (type);
1404 mono_mb_emit_ldloc (mb, 1);
1405 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1406 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1407 mono_mb_emit_ldloc (mb, 0);
1408 mono_mb_emit_byte (mb, CEE_LDIND_I);
1409 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1410 mono_mb_emit_byte (mb, CEE_STIND_REF);
1413 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1414 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1418 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1419 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1420 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1421 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1423 #endif /* DISABLE_COM */
1425 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1427 * Passing SafeHandles as ref does not allow the unmanaged code
1428 * to change the SafeHandle value. If the value is changed,
1429 * we should issue a diagnostic exception (NotSupportedException)
1430 * that informs the user that changes to handles in unmanaged code
1433 * Since we currently have no access to the original
1434 * SafeHandle that was used during the marshalling,
1435 * for now we just ignore this, and ignore/discard any
1436 * changes that might have happened to the handle.
1441 case MONO_MARSHAL_CONV_HANDLEREF: {
1443 * Passing HandleRefs in a struct that is ref()ed does not
1444 * copy the values back to the HandleRef
1449 case MONO_MARSHAL_CONV_STR_BSTR:
1450 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1451 case MONO_MARSHAL_CONV_STR_TBSTR:
1452 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1454 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1456 mono_mb_emit_exception_marshal_directive (mb, msg);
1463 conv_to_icall (MonoMarshalConv conv)
1466 case MONO_MARSHAL_CONV_STR_LPWSTR:
1467 return mono_marshal_string_to_utf16;
1468 case MONO_MARSHAL_CONV_LPWSTR_STR:
1469 return mono_string_from_utf16;
1470 case MONO_MARSHAL_CONV_LPTSTR_STR:
1471 return mono_string_new_wrapper;
1472 case MONO_MARSHAL_CONV_LPSTR_STR:
1473 return mono_string_new_wrapper;
1474 case MONO_MARSHAL_CONV_STR_LPTSTR:
1476 return mono_marshal_string_to_utf16;
1478 return mono_string_to_lpstr;
1480 case MONO_MARSHAL_CONV_STR_LPSTR:
1481 return mono_string_to_lpstr;
1482 case MONO_MARSHAL_CONV_STR_BSTR:
1483 return mono_string_to_bstr;
1484 case MONO_MARSHAL_CONV_BSTR_STR:
1485 return mono_string_from_bstr;
1486 case MONO_MARSHAL_CONV_STR_TBSTR:
1487 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1488 return mono_string_to_ansibstr;
1489 case MONO_MARSHAL_CONV_SB_LPSTR:
1490 return mono_string_builder_to_utf8;
1491 case MONO_MARSHAL_CONV_SB_LPTSTR:
1493 return mono_string_builder_to_utf16;
1495 return mono_string_builder_to_utf8;
1497 case MONO_MARSHAL_CONV_SB_LPWSTR:
1498 return mono_string_builder_to_utf16;
1499 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1500 return mono_array_to_savearray;
1501 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1502 return mono_array_to_lparray;
1503 case MONO_MARSHAL_FREE_LPARRAY:
1504 return mono_free_lparray;
1505 case MONO_MARSHAL_CONV_DEL_FTN:
1506 return mono_delegate_to_ftnptr;
1507 case MONO_MARSHAL_CONV_FTN_DEL:
1508 return mono_ftnptr_to_delegate;
1509 case MONO_MARSHAL_CONV_LPSTR_SB:
1510 return mono_string_utf8_to_builder;
1511 case MONO_MARSHAL_CONV_LPTSTR_SB:
1513 return mono_string_utf16_to_builder;
1515 return mono_string_utf8_to_builder;
1517 case MONO_MARSHAL_CONV_LPWSTR_SB:
1518 return mono_string_utf16_to_builder;
1519 case MONO_MARSHAL_FREE_ARRAY:
1520 return mono_marshal_free_array;
1521 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1522 return mono_string_to_byvalstr;
1523 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1524 return mono_string_to_byvalwstr;
1526 g_assert_not_reached ();
1533 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1538 case MONO_MARSHAL_CONV_BOOL_I4:
1539 mono_mb_emit_ldloc (mb, 1);
1540 mono_mb_emit_ldloc (mb, 0);
1541 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1542 mono_mb_emit_byte (mb, CEE_STIND_I4);
1544 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1545 mono_mb_emit_ldloc (mb, 1);
1546 mono_mb_emit_ldloc (mb, 0);
1547 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1548 mono_mb_emit_byte (mb, CEE_NEG);
1549 mono_mb_emit_byte (mb, CEE_STIND_I2);
1551 case MONO_MARSHAL_CONV_STR_LPWSTR:
1552 case MONO_MARSHAL_CONV_STR_LPSTR:
1553 case MONO_MARSHAL_CONV_STR_LPTSTR:
1554 case MONO_MARSHAL_CONV_STR_BSTR:
1555 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1556 case MONO_MARSHAL_CONV_STR_TBSTR: {
1559 /* free space if free == true */
1560 mono_mb_emit_ldloc (mb, 2);
1561 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1562 mono_mb_emit_ldloc (mb, 1);
1563 mono_mb_emit_byte (mb, CEE_LDIND_I);
1564 mono_mb_emit_icall (mb, g_free);
1565 mono_mb_patch_short_branch (mb, pos);
1567 mono_mb_emit_ldloc (mb, 1);
1568 mono_mb_emit_ldloc (mb, 0);
1569 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1570 mono_mb_emit_icall (mb, conv_to_icall (conv));
1571 mono_mb_emit_byte (mb, CEE_STIND_I);
1574 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1575 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1576 case MONO_MARSHAL_CONV_DEL_FTN:
1577 mono_mb_emit_ldloc (mb, 1);
1578 mono_mb_emit_ldloc (mb, 0);
1579 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1580 mono_mb_emit_icall (mb, conv_to_icall (conv));
1581 mono_mb_emit_byte (mb, CEE_STIND_I);
1583 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1584 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1587 mono_mb_emit_ldloc (mb, 1); /* dst */
1588 mono_mb_emit_ldloc (mb, 0);
1589 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1590 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1591 mono_mb_emit_icall (mb, conv_to_icall (conv));
1594 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1595 MonoClass *eklass = NULL;
1598 if (type->type == MONO_TYPE_SZARRAY) {
1599 eklass = type->data.klass;
1601 g_assert_not_reached ();
1604 if (eklass->valuetype)
1605 esize = mono_class_native_size (eklass, NULL);
1607 esize = sizeof (gpointer);
1609 mono_mb_emit_ldloc (mb, 0);
1610 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1611 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1613 if (eklass->blittable) {
1614 mono_mb_emit_ldloc (mb, 1);
1615 mono_mb_emit_ldloc (mb, 0);
1616 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1617 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1618 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1619 mono_mb_emit_byte (mb, CEE_PREFIX1);
1620 mono_mb_emit_byte (mb, CEE_CPBLK);
1622 int array_var, src_var, dst_var, index_var;
1623 guint32 label2, label3;
1625 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1626 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1627 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1630 mono_mb_emit_ldloc (mb, 0);
1631 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1632 mono_mb_emit_stloc (mb, array_var);
1634 /* save the old src pointer */
1635 mono_mb_emit_ldloc (mb, 0);
1636 mono_mb_emit_stloc (mb, src_var);
1637 /* save the old dst pointer */
1638 mono_mb_emit_ldloc (mb, 1);
1639 mono_mb_emit_stloc (mb, dst_var);
1641 /* Emit marshalling loop */
1642 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1643 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1644 mono_mb_emit_stloc (mb, index_var);
1647 label2 = mono_mb_get_label (mb);
1648 mono_mb_emit_ldloc (mb, index_var);
1649 mono_mb_emit_ldloc (mb, array_var);
1650 mono_mb_emit_byte (mb, CEE_LDLEN);
1651 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1654 mono_mb_emit_ldloc (mb, array_var);
1655 mono_mb_emit_ldloc (mb, index_var);
1656 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1657 mono_mb_emit_stloc (mb, 0);
1659 /* dst is already set */
1661 /* Do the conversion */
1662 emit_struct_conv (mb, eklass, FALSE);
1665 mono_mb_emit_add_to_local (mb, index_var, 1);
1667 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1669 mono_mb_patch_branch (mb, label3);
1671 /* restore the old src pointer */
1672 mono_mb_emit_ldloc (mb, src_var);
1673 mono_mb_emit_stloc (mb, 0);
1674 /* restore the old dst pointer */
1675 mono_mb_emit_ldloc (mb, dst_var);
1676 mono_mb_emit_stloc (mb, 1);
1679 mono_mb_patch_branch (mb, pos);
1682 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1683 mono_mb_emit_ldloc (mb, 0);
1684 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1685 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1687 mono_mb_emit_ldloc (mb, 1);
1688 mono_mb_emit_ldloc (mb, 0);
1689 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1690 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1691 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1692 mono_mb_patch_short_branch (mb, pos);
1695 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1696 int src_var, dst_var;
1698 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1699 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1701 mono_mb_emit_ldloc (mb, 0);
1702 mono_mb_emit_byte (mb, CEE_LDIND_I);
1703 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1705 /* save the old src pointer */
1706 mono_mb_emit_ldloc (mb, 0);
1707 mono_mb_emit_stloc (mb, src_var);
1708 /* save the old dst pointer */
1709 mono_mb_emit_ldloc (mb, 1);
1710 mono_mb_emit_stloc (mb, dst_var);
1712 /* src = pointer to object data */
1713 mono_mb_emit_ldloc (mb, 0);
1714 mono_mb_emit_byte (mb, CEE_LDIND_I);
1715 mono_mb_emit_icon (mb, sizeof (MonoObject));
1716 mono_mb_emit_byte (mb, CEE_ADD);
1717 mono_mb_emit_stloc (mb, 0);
1719 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1721 /* restore the old src pointer */
1722 mono_mb_emit_ldloc (mb, src_var);
1723 mono_mb_emit_stloc (mb, 0);
1724 /* restore the old dst pointer */
1725 mono_mb_emit_ldloc (mb, dst_var);
1726 mono_mb_emit_stloc (mb, 1);
1728 mono_mb_patch_branch (mb, pos);
1733 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1734 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1735 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1736 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1738 #endif /* DISABLE_COM */
1740 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1743 mono_mb_emit_ldloc (mb, 0);
1744 mono_mb_emit_byte (mb, CEE_LDIND_I);
1745 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1746 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1747 mono_mb_patch_branch (mb, pos);
1749 /* Pull the handle field from SafeHandle */
1750 mono_mb_emit_ldloc (mb, 1);
1751 mono_mb_emit_ldloc (mb, 0);
1752 mono_mb_emit_byte (mb, CEE_LDIND_I);
1753 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1754 mono_mb_emit_byte (mb, CEE_LDIND_I);
1755 mono_mb_emit_byte (mb, CEE_STIND_I);
1759 case MONO_MARSHAL_CONV_HANDLEREF: {
1760 mono_mb_emit_ldloc (mb, 1);
1761 mono_mb_emit_ldloc (mb, 0);
1762 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1763 mono_mb_emit_byte (mb, CEE_ADD);
1764 mono_mb_emit_byte (mb, CEE_LDIND_I);
1765 mono_mb_emit_byte (mb, CEE_STIND_I);
1770 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
1771 MonoException *exc = mono_get_exception_not_implemented (msg);
1772 g_warning ("%s", msg);
1774 mono_raise_exception (exc);
1780 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1781 MonoMarshalNative string_encoding)
1783 MonoMarshalType *info;
1787 emit_struct_conv(mb, klass->parent, to_object);
1789 info = mono_marshal_load_type_info (klass);
1791 if (info->native_size == 0)
1794 if (klass->blittable) {
1795 int msize = mono_class_value_size (klass, NULL);
1796 g_assert (msize == info->native_size);
1797 mono_mb_emit_ldloc (mb, 1);
1798 mono_mb_emit_ldloc (mb, 0);
1799 mono_mb_emit_icon (mb, msize);
1800 mono_mb_emit_byte (mb, CEE_PREFIX1);
1801 mono_mb_emit_byte (mb, CEE_CPBLK);
1803 mono_mb_emit_add_to_local (mb, 0, msize);
1804 mono_mb_emit_add_to_local (mb, 1, msize);
1808 if (klass != mono_class_try_get_safehandle_class ()) {
1809 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1810 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1811 mono_type_full_name (&klass->byval_arg));
1812 mono_mb_emit_exception_marshal_directive (mb, msg);
1817 for (i = 0; i < info->num_fields; i++) {
1818 MonoMarshalNative ntype;
1819 MonoMarshalConv conv;
1820 MonoType *ftype = info->fields [i].field->type;
1823 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1825 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1828 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1831 msize = klass->instance_size - info->fields [i].field->offset;
1832 usize = info->native_size - info->fields [i].offset;
1834 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1835 usize = info->fields [i + 1].offset - info->fields [i].offset;
1838 if (klass != mono_class_try_get_safehandle_class ()){
1840 * FIXME: Should really check for usize==0 and msize>0, but we apply
1841 * the layout to the managed structure as well.
1844 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1845 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1846 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1847 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1848 "reference field at the same offset as another field.",
1849 mono_type_full_name (&klass->byval_arg));
1854 case MONO_MARSHAL_CONV_NONE: {
1857 if (ftype->byref || ftype->type == MONO_TYPE_I ||
1858 ftype->type == MONO_TYPE_U) {
1859 mono_mb_emit_ldloc (mb, 1);
1860 mono_mb_emit_ldloc (mb, 0);
1861 mono_mb_emit_byte (mb, CEE_LDIND_I);
1862 mono_mb_emit_byte (mb, CEE_STIND_I);
1873 case MONO_TYPE_BOOLEAN:
1876 case MONO_TYPE_CHAR:
1882 mono_mb_emit_ldloc (mb, 1);
1883 mono_mb_emit_ldloc (mb, 0);
1884 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
1886 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1887 mono_mb_emit_byte (mb, CEE_STIND_I2);
1889 mono_mb_emit_byte (mb, CEE_LDIND_U2);
1890 mono_mb_emit_byte (mb, CEE_STIND_I1);
1893 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
1894 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
1897 case MONO_TYPE_VALUETYPE: {
1898 int src_var, dst_var;
1900 if (ftype->data.klass->enumtype) {
1901 ftype = mono_class_enum_basetype (ftype->data.klass);
1905 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1906 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1908 /* save the old src pointer */
1909 mono_mb_emit_ldloc (mb, 0);
1910 mono_mb_emit_stloc (mb, src_var);
1911 /* save the old dst pointer */
1912 mono_mb_emit_ldloc (mb, 1);
1913 mono_mb_emit_stloc (mb, dst_var);
1915 emit_struct_conv (mb, ftype->data.klass, to_object);
1917 /* restore the old src pointer */
1918 mono_mb_emit_ldloc (mb, src_var);
1919 mono_mb_emit_stloc (mb, 0);
1920 /* restore the old dst pointer */
1921 mono_mb_emit_ldloc (mb, dst_var);
1922 mono_mb_emit_stloc (mb, 1);
1925 case MONO_TYPE_OBJECT: {
1928 static MonoMethod *variant_clear = NULL;
1929 static MonoMethod *get_object_for_native_variant = NULL;
1932 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
1933 if (!get_object_for_native_variant)
1934 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
1935 mono_mb_emit_ldloc (mb, 1);
1936 mono_mb_emit_ldloc (mb, 0);
1937 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
1938 mono_mb_emit_byte (mb, CEE_STIND_REF);
1940 mono_mb_emit_ldloc (mb, 0);
1941 mono_mb_emit_managed_call (mb, variant_clear, NULL);
1944 static MonoMethod *get_native_variant_for_object = NULL;
1946 if (!get_native_variant_for_object)
1947 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
1949 mono_mb_emit_ldloc (mb, 0);
1950 mono_mb_emit_byte(mb, CEE_LDIND_REF);
1951 mono_mb_emit_ldloc (mb, 1);
1952 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
1955 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
1956 mono_mb_emit_exception_marshal_directive (mb, msg);
1962 g_warning ("marshaling type %02x not implemented", ftype->type);
1963 g_assert_not_reached ();
1968 int src_var, dst_var;
1970 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1971 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1973 /* save the old src pointer */
1974 mono_mb_emit_ldloc (mb, 0);
1975 mono_mb_emit_stloc (mb, src_var);
1976 /* save the old dst pointer */
1977 mono_mb_emit_ldloc (mb, 1);
1978 mono_mb_emit_stloc (mb, dst_var);
1981 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
1983 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
1985 /* restore the old src pointer */
1986 mono_mb_emit_ldloc (mb, src_var);
1987 mono_mb_emit_stloc (mb, 0);
1988 /* restore the old dst pointer */
1989 mono_mb_emit_ldloc (mb, dst_var);
1990 mono_mb_emit_stloc (mb, 1);
1995 mono_mb_emit_add_to_local (mb, 0, usize);
1996 mono_mb_emit_add_to_local (mb, 1, msize);
1998 mono_mb_emit_add_to_local (mb, 0, msize);
1999 mono_mb_emit_add_to_local (mb, 1, usize);
2005 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2007 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2011 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2013 /* Call DestroyStructure */
2014 /* FIXME: Only do this if needed */
2015 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2016 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2017 mono_mb_emit_ldloc (mb, struct_var);
2018 mono_mb_emit_icall (mb, mono_struct_delete_old);
2022 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2024 int pos_noabort, pos_noex;
2026 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2027 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2028 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2029 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2031 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2032 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2034 mono_mb_emit_icall (mb, checkpoint_func);
2035 /* Throw the exception returned by the checkpoint function, if any */
2036 mono_mb_emit_byte (mb, CEE_DUP);
2037 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2038 mono_mb_emit_byte (mb, CEE_THROW);
2039 mono_mb_patch_branch (mb, pos_noex);
2040 mono_mb_emit_byte (mb, CEE_POP);
2042 mono_mb_patch_branch (mb, pos_noabort);
2046 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2048 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2051 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2055 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2057 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2061 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2063 emit_thread_interrupt_checkpoint (mb);
2067 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2069 emit_thread_force_interrupt_checkpoint (mb);
2072 #endif /* DISABLE_JIT */
2074 static MonoAsyncResult *
2075 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2077 MonoMulticastDelegate *mcast_delegate;
2081 g_assert (delegate);
2082 mcast_delegate = (MonoMulticastDelegate *) delegate;
2083 if (mcast_delegate->delegates != NULL)
2084 mono_raise_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2086 #ifndef DISABLE_REMOTING
2087 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2089 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2090 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2092 /* If the target is a proxy, make a direct call. Is proxy's work
2093 // to make the call asynchronous.
2095 MonoMethodMessage *msg;
2096 MonoDelegate *async_callback;
2098 MonoAsyncResult *ares;
2100 MonoArray *out_args;
2101 method = delegate->method;
2103 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2104 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL);
2105 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2106 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2107 MONO_OBJECT_SETREF (msg, async_result, ares);
2108 msg->call_type = CallType_BeginInvoke;
2111 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2113 mono_raise_exception ((MonoException *) exc);
2119 klass = delegate->object.vtable->klass;
2121 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2123 method = mono_get_delegate_invoke (klass);
2126 return mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params);
2132 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2134 int i, params_var, tmp_var;
2136 /* allocate local (pointer) *params[] */
2137 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2138 /* allocate local (pointer) tmp */
2139 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2141 /* alloate space on stack to store an array of pointers to the arguments */
2142 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2143 mono_mb_emit_byte (mb, CEE_PREFIX1);
2144 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2145 mono_mb_emit_stloc (mb, params_var);
2148 mono_mb_emit_ldloc (mb, params_var);
2149 mono_mb_emit_stloc (mb, tmp_var);
2151 if (save_this && sig->hasthis) {
2152 mono_mb_emit_ldloc (mb, tmp_var);
2153 mono_mb_emit_ldarg_addr (mb, 0);
2154 mono_mb_emit_byte (mb, CEE_STIND_I);
2155 /* tmp = tmp + sizeof (gpointer) */
2156 if (sig->param_count)
2157 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2161 for (i = 0; i < sig->param_count; i++) {
2162 mono_mb_emit_ldloc (mb, tmp_var);
2163 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2164 mono_mb_emit_byte (mb, CEE_STIND_I);
2165 /* tmp = tmp + sizeof (gpointer) */
2166 if (i < (sig->param_count - 1))
2167 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2173 #endif /* DISABLE_JIT */
2176 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2180 GString *res = g_string_new ("");
2183 g_string_append (res, prefix);
2184 g_string_append_c (res, '_');
2187 mono_type_get_desc (res, sig->ret, FALSE);
2190 g_string_append (res, "__this__");
2192 for (i = 0; i < sig->param_count; ++i) {
2193 g_string_append_c (res, '_');
2194 mono_type_get_desc (res, sig->params [i], FALSE);
2197 g_string_free (res, FALSE);
2202 * mono_marshal_get_string_encoding:
2204 * Return the string encoding which should be used for a given parameter.
2206 static MonoMarshalNative
2207 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2209 /* First try the parameter marshal info */
2211 if (spec->native == MONO_NATIVE_LPARRAY) {
2212 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2213 return spec->data.array_data.elem_type;
2216 return spec->native;
2220 return MONO_NATIVE_LPSTR;
2222 /* Then try the method level marshal info */
2223 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2224 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2225 return MONO_NATIVE_LPSTR;
2226 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2227 return MONO_NATIVE_LPWSTR;
2228 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2230 return MONO_NATIVE_LPWSTR;
2232 return MONO_NATIVE_LPSTR;
2235 return MONO_NATIVE_LPSTR;
2239 static MonoMarshalConv
2240 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2242 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2245 case MONO_NATIVE_LPWSTR:
2246 return MONO_MARSHAL_CONV_STR_LPWSTR;
2247 case MONO_NATIVE_LPSTR:
2248 case MONO_NATIVE_VBBYREFSTR:
2249 return MONO_MARSHAL_CONV_STR_LPSTR;
2250 case MONO_NATIVE_LPTSTR:
2251 return MONO_MARSHAL_CONV_STR_LPTSTR;
2252 case MONO_NATIVE_BSTR:
2253 return MONO_MARSHAL_CONV_STR_BSTR;
2255 return (MonoMarshalConv)-1;
2259 static MonoMarshalConv
2260 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2262 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2265 case MONO_NATIVE_LPWSTR:
2266 return MONO_MARSHAL_CONV_SB_LPWSTR;
2268 case MONO_NATIVE_LPSTR:
2269 return MONO_MARSHAL_CONV_SB_LPSTR;
2271 case MONO_NATIVE_LPTSTR:
2272 return MONO_MARSHAL_CONV_SB_LPTSTR;
2275 return (MonoMarshalConv)-1;
2279 static MonoMarshalConv
2280 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2282 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2287 case MONO_NATIVE_LPWSTR:
2289 return MONO_MARSHAL_CONV_LPWSTR_STR;
2290 case MONO_NATIVE_LPSTR:
2291 case MONO_NATIVE_VBBYREFSTR:
2292 return MONO_MARSHAL_CONV_LPSTR_STR;
2293 case MONO_NATIVE_LPTSTR:
2294 return MONO_MARSHAL_CONV_LPTSTR_STR;
2295 case MONO_NATIVE_BSTR:
2296 return MONO_MARSHAL_CONV_BSTR_STR;
2298 return (MonoMarshalConv)-1;
2302 static MonoMarshalConv
2303 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2305 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2310 case MONO_NATIVE_LPWSTR:
2312 * mono_string_builder_to_utf16 does not allocate a
2313 * new buffer, so no need to free it.
2316 return MONO_MARSHAL_CONV_LPWSTR_SB;
2317 case MONO_NATIVE_LPSTR:
2318 return MONO_MARSHAL_CONV_LPSTR_SB;
2320 case MONO_NATIVE_LPTSTR:
2321 return MONO_MARSHAL_CONV_LPTSTR_SB;
2324 return (MonoMarshalConv)-1;
2329 * Return whenever a field of a native structure or an array member needs to
2333 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2335 MonoMarshalNative encoding;
2338 case MONO_TYPE_VALUETYPE:
2339 /* FIXME: Optimize this */
2341 case MONO_TYPE_OBJECT:
2342 case MONO_TYPE_CLASS:
2343 if (t->data.klass == mono_defaults.stringbuilder_class) {
2345 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2349 case MONO_TYPE_STRING:
2350 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2351 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2358 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2361 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2364 mono_marshal_lock ();
2367 g_hash_table_new (hash_func, equal_func);
2368 mono_memory_barrier ();
2371 mono_marshal_unlock ();
2377 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2379 return get_cache (var, hash_func, equal_func);
2383 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2387 mono_marshal_lock ();
2388 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2389 mono_marshal_unlock ();
2396 * Create a MonoMethod from MB, set INFO as wrapper info.
2399 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2400 int max_stack, WrapperInfo *info)
2404 res = mono_mb_create_method (mb, sig, max_stack);
2406 mono_marshal_set_wrapper_info (res, info);
2410 /* Create the method from the builder and place it in the cache */
2412 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2413 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2414 int max_stack, WrapperInfo *info, gboolean *out_found)
2421 mono_marshal_lock ();
2422 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2423 mono_marshal_unlock ();
2426 newm = mono_mb_create_method (mb, sig, max_stack);
2427 mono_marshal_lock ();
2428 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2431 g_hash_table_insert (cache, key, res);
2432 mono_marshal_set_wrapper_info (res, info);
2433 mono_marshal_unlock ();
2437 mono_marshal_unlock ();
2438 mono_free_method (newm);
2446 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2447 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2450 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2454 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2457 int wrapper_type = wrapper->wrapper_type;
2460 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2463 info = mono_marshal_get_wrapper_info (wrapper);
2465 switch (wrapper_type) {
2466 case MONO_WRAPPER_REMOTING_INVOKE:
2467 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2468 case MONO_WRAPPER_XDOMAIN_INVOKE:
2469 m = info->d.remoting.method;
2470 if (wrapper->is_inflated) {
2474 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2475 * contains an uninflated method.
2477 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2478 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2482 case MONO_WRAPPER_SYNCHRONIZED:
2483 m = info->d.synchronized.method;
2484 if (wrapper->is_inflated) {
2487 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2488 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2492 case MONO_WRAPPER_UNBOX:
2493 return info->d.unbox.method;
2494 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2495 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2496 return info->d.managed_to_native.method;
2499 case MONO_WRAPPER_RUNTIME_INVOKE:
2500 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2501 return info->d.runtime_invoke.method;
2510 * mono_marshal_get_wrapper_info:
2512 * Retrieve the WrapperInfo structure associated with WRAPPER.
2515 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2517 g_assert (wrapper->wrapper_type);
2519 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2523 * mono_marshal_set_wrapper_info:
2525 * Set the WrapperInfo structure associated with the wrapper
2526 * method METHOD to INFO.
2529 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2533 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2536 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2541 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2545 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2546 info->subtype = subtype;
2551 * get_wrapper_target_class:
2553 * Return the class where a wrapper method should be placed.
2556 get_wrapper_target_class (MonoImage *image)
2563 * - can't put all wrappers into an mscorlib class, because they reference
2564 * metadata (signature) so they should be put into the same image as the
2565 * method they wrap, so they are unloaded together.
2566 * - putting them into a class with a type initalizer could cause the
2567 * initializer to be executed which can be a problem if the wrappers are
2569 * - putting them into an inflated class can cause problems if the the
2570 * class is deleted because it references an image which is unloaded.
2571 * To avoid these problems, we put the wrappers into the <Module> class of
2574 if (image_is_dynamic (image)) {
2575 klass = ((MonoDynamicImage*)image)->wrappers_type;
2577 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2578 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2586 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2587 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2591 * check_generic_wrapper_cache:
2593 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2594 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2595 * generic method definition.
2598 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2601 MonoMethod *inst, *def;
2602 MonoGenericContext *ctx;
2604 g_assert (orig_method->is_inflated);
2605 ctx = mono_method_get_context (orig_method);
2608 * Look for the instance
2610 res = mono_marshal_find_in_cache (cache, key);
2615 * Look for the definition
2617 def = mono_marshal_find_in_cache (cache, def_key);
2620 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2621 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2623 mono_memory_barrier ();
2624 mono_marshal_lock ();
2625 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2627 g_hash_table_insert (cache, key, inst);
2630 mono_marshal_unlock ();
2637 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2640 MonoMethod *inst, *res;
2643 * We use the same cache for the generic definition and the instances.
2645 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2646 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2647 mono_memory_barrier ();
2648 mono_marshal_lock ();
2649 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2651 g_hash_table_insert (cache, key, inst);
2654 mono_marshal_unlock ();
2659 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2663 MonoMethod *inst, *def;
2666 * Look for the instance
2668 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2673 * Look for the definition
2675 def = mono_marshal_find_in_cache (cache, def_method->klass);
2677 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2678 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2681 mono_memory_barrier ();
2682 mono_marshal_lock ();
2683 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2685 g_hash_table_insert (cache, orig_method->klass, inst);
2688 mono_marshal_unlock ();
2695 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2698 MonoMethod *inst, *res;
2701 * We use the same cache for the generic definition and the instances.
2703 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2704 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2706 mono_memory_barrier ();
2707 mono_marshal_lock ();
2708 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2710 g_hash_table_insert (cache, orig_method->klass, inst);
2713 mono_marshal_unlock ();
2718 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2720 MonoMethodSignature *sig;
2721 MonoMethodBuilder *mb;
2726 MonoGenericContext *ctx = NULL;
2727 MonoMethod *orig_method = NULL;
2729 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2730 !strcmp (method->name, "BeginInvoke"));
2733 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2735 if (method->is_inflated) {
2736 orig_method = method;
2737 ctx = &((MonoMethodInflated*)method)->context;
2738 method = ((MonoMethodInflated*)method)->declaring;
2741 sig = mono_signature_no_pinvoke (method);
2747 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2748 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2752 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2753 (GHashFunc)mono_signature_hash,
2754 (GCompareFunc)mono_metadata_signature_equal);
2755 if ((res = mono_marshal_find_in_cache (cache, sig)))
2759 g_assert (sig->hasthis);
2761 name = mono_signature_to_name (sig, "begin_invoke");
2763 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2765 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2769 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2771 mono_mb_emit_ldarg (mb, 0);
2772 mono_mb_emit_ldloc (mb, params_var);
2773 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2774 mono_mb_emit_byte (mb, CEE_RET);
2779 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2780 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2782 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2790 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2793 MonoDomain *domain = mono_domain_get ();
2794 MonoAsyncResult *ares;
2795 MonoMethod *method = NULL;
2796 MonoMethodSignature *sig;
2797 MonoMethodMessage *msg;
2798 MonoObject *res, *exc;
2799 MonoArray *out_args;
2802 g_assert (delegate);
2804 if (!delegate->method_info) {
2805 g_assert (delegate->method);
2806 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2807 mono_error_raise_exception (&error); /* FIXME don't raise here */
2808 MONO_OBJECT_SETREF (delegate, method_info, rm);
2811 if (!delegate->method_info || !delegate->method_info->method)
2812 g_assert_not_reached ();
2814 klass = delegate->object.vtable->klass;
2816 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2817 g_assert (method != NULL);
2819 sig = mono_signature_no_pinvoke (method);
2821 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2823 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2825 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."));
2829 if (ares->async_delegate != (MonoObject*)delegate) {
2830 mono_raise_exception (mono_get_exception_invalid_operation (
2831 "The IAsyncResult object provided does not match this delegate."));
2835 #ifndef DISABLE_REMOTING
2836 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2837 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2838 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
2839 mono_error_raise_exception (&error); /* FIXME don't raise here */
2840 mono_message_init (domain, msg, delegate->method_info, NULL);
2841 msg->call_type = CallType_EndInvoke;
2842 MONO_OBJECT_SETREF (msg, async_result, ares);
2843 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2847 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc);
2851 if (((MonoException*)exc)->stack_trace) {
2852 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2854 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2856 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2859 mono_raise_exception ((MonoException*)exc);
2862 mono_method_return_message_restore (method, params, out_args);
2869 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2871 MonoType *t = mono_type_get_underlying_type (return_type);
2873 if (return_type->byref)
2874 return_type = &mono_defaults.int_class->byval_arg;
2877 case MONO_TYPE_VOID:
2878 g_assert_not_reached ();
2881 case MONO_TYPE_STRING:
2882 case MONO_TYPE_CLASS:
2883 case MONO_TYPE_OBJECT:
2884 case MONO_TYPE_ARRAY:
2885 case MONO_TYPE_SZARRAY:
2889 case MONO_TYPE_BOOLEAN:
2892 case MONO_TYPE_CHAR:
2902 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2903 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2905 case MONO_TYPE_GENERICINST:
2906 if (!mono_type_generic_inst_is_valuetype (t))
2909 case MONO_TYPE_VALUETYPE: {
2910 MonoClass *klass = mono_class_from_mono_type (return_type);
2911 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2912 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2916 case MONO_TYPE_MVAR: {
2917 MonoClass *klass = mono_class_from_mono_type (return_type);
2918 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
2922 g_warning ("type 0x%x not handled", return_type->type);
2923 g_assert_not_reached ();
2926 mono_mb_emit_byte (mb, CEE_RET);
2929 #endif /* DISABLE_JIT */
2932 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2934 MonoMethodSignature *sig;
2935 MonoMethodBuilder *mb;
2940 MonoGenericContext *ctx = NULL;
2941 MonoMethod *orig_method = NULL;
2943 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2944 !strcmp (method->name, "EndInvoke"));
2947 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2949 if (method->is_inflated) {
2950 orig_method = method;
2951 ctx = &((MonoMethodInflated*)method)->context;
2952 method = ((MonoMethodInflated*)method)->declaring;
2955 sig = mono_signature_no_pinvoke (method);
2961 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
2962 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2966 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
2967 (GHashFunc)mono_signature_hash,
2968 (GCompareFunc)mono_metadata_signature_equal);
2969 if ((res = mono_marshal_find_in_cache (cache, sig)))
2973 g_assert (sig->hasthis);
2975 name = mono_signature_to_name (sig, "end_invoke");
2977 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2979 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2983 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2985 mono_mb_emit_ldarg (mb, 0);
2986 mono_mb_emit_ldloc (mb, params_var);
2987 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2989 if (sig->ret->type == MONO_TYPE_VOID) {
2990 mono_mb_emit_byte (mb, CEE_POP);
2991 mono_mb_emit_byte (mb, CEE_RET);
2993 mono_mb_emit_restore_result (mb, sig->ret);
2998 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2999 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3001 res = mono_mb_create_and_cache (cache, sig,
3002 mb, sig, sig->param_count + 16);
3011 MonoMethodSignature *sig;
3013 } SignaturePointerPair;
3016 signature_pointer_pair_hash (gconstpointer data)
3018 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3020 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3024 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3026 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3027 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3031 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3033 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3035 return pair->pointer == user_data;
3039 free_signature_pointer_pair (SignaturePointerPair *pair)
3045 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3047 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3049 MonoMethodBuilder *mb;
3052 gpointer cache_key = NULL;
3053 SignaturePointerPair key;
3054 SignaturePointerPair *new_key;
3055 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3056 int pos0, pos1, pos2;
3058 MonoClass *target_class = NULL;
3059 gboolean closed_over_null = FALSE;
3060 MonoGenericContext *ctx = NULL;
3061 MonoGenericContainer *container = NULL;
3062 MonoMethod *orig_method = NULL;
3064 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3068 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3069 !strcmp (method->name, "Invoke"));
3071 invoke_sig = sig = mono_signature_no_pinvoke (method);
3074 * If the delegate target is null, and the target method is not static, a virtual
3075 * call is made to that method with the first delegate argument as this. This is
3076 * a non-documented .NET feature.
3079 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3080 if (target_method->is_inflated) {
3081 MonoType *target_type;
3083 g_assert (method->signature->hasthis);
3084 target_type = mono_class_inflate_generic_type (method->signature->params [0],
3085 mono_method_get_context (method));
3086 target_class = mono_class_from_mono_type (target_type);
3088 target_class = target_method->klass;
3091 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3094 if (static_method_with_first_arg_bound) {
3095 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3096 g_assert (!callvirt);
3097 invoke_sig = mono_method_signature (target_method);
3101 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3103 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3104 orig_method = method;
3105 ctx = &((MonoMethodInflated*)method)->context;
3106 method = ((MonoMethodInflated*)method)->declaring;
3108 container = mono_method_get_generic_container (method);
3110 container = method->klass->generic_container;
3111 g_assert (container);
3113 invoke_sig = sig = mono_signature_no_pinvoke (method);
3120 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3121 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3124 cache_key = method->klass;
3125 } else if (static_method_with_first_arg_bound) {
3126 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3127 (GHashFunc)mono_signature_hash,
3128 (GCompareFunc)mono_metadata_signature_equal);
3130 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3132 res = mono_marshal_find_in_cache (cache, invoke_sig);
3135 cache_key = invoke_sig;
3136 } else if (callvirt) {
3137 GHashTable **cache_ptr;
3139 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3141 /* We need to cache the signature+method pair */
3142 mono_marshal_lock ();
3144 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3146 key.sig = invoke_sig;
3147 key.pointer = target_method;
3148 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3149 mono_marshal_unlock ();
3153 // Inflated methods should not be in this cache because it's not stored on the imageset.
3154 g_assert (!method->is_inflated);
3155 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3156 (GHashFunc)mono_signature_hash,
3157 (GCompareFunc)mono_metadata_signature_equal);
3158 res = mono_marshal_find_in_cache (cache, sig);
3164 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3165 static_sig->hasthis = 0;
3166 if (!static_method_with_first_arg_bound)
3167 invoke_sig = static_sig;
3169 if (static_method_with_first_arg_bound)
3170 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3171 else if (closed_over_null)
3172 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3174 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3176 name = mono_signature_to_name (invoke_sig, "invoke");
3178 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3180 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3184 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3186 /* allocate local 0 (object) */
3187 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3188 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3189 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3190 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3191 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3194 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3196 g_assert (sig->hasthis);
3199 * {type: sig->ret} res;
3200 * if (delegates == null) {
3201 * return this.<target> ( args .. );
3203 * int i = 0, len = this.delegates.Length;
3205 * res = this.delegates [i].Invoke ( args .. );
3206 * } while (++i < len);
3211 /* this wrapper can be used in unmanaged-managed transitions */
3212 emit_thread_interrupt_checkpoint (mb);
3214 /* delegates = this.delegates */
3215 mono_mb_emit_ldarg (mb, 0);
3216 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3217 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3218 mono_mb_emit_stloc (mb, local_delegates);
3221 /* if (delegates == null) */
3222 mono_mb_emit_ldloc (mb, local_delegates);
3223 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3225 /* return target.<target_method|method_ptr> ( args .. ); */
3227 /* target = d.target; */
3228 mono_mb_emit_ldarg (mb, 0);
3229 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3230 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3231 mono_mb_emit_stloc (mb, local_target);
3233 /*static methods with bound first arg can have null target and still be bound*/
3234 if (!static_method_with_first_arg_bound) {
3235 /* if target != null */
3236 mono_mb_emit_ldloc (mb, local_target);
3237 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3239 /* then call this->method_ptr nonstatic */
3242 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3244 mono_mb_emit_ldloc (mb, local_target);
3245 for (i = 0; i < sig->param_count; ++i)
3246 mono_mb_emit_ldarg (mb, i + 1);
3247 mono_mb_emit_ldarg (mb, 0);
3248 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3249 mono_mb_emit_byte (mb, CEE_LDIND_I);
3250 mono_mb_emit_ldarg (mb, 0);
3251 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3252 mono_mb_emit_byte (mb, CEE_LDIND_I);
3253 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3254 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3255 mono_mb_emit_byte (mb, CEE_RET);
3258 /* else [target == null] call this->method_ptr static */
3259 mono_mb_patch_branch (mb, pos0);
3263 if (!closed_over_null) {
3264 if (target_class->valuetype) {
3265 mono_mb_emit_ldarg (mb, 1);
3266 for (i = 1; i < sig->param_count; ++i)
3267 mono_mb_emit_ldarg (mb, i + 1);
3268 mono_mb_emit_op (mb, CEE_CALL, target_method);
3270 mono_mb_emit_ldarg (mb, 1);
3271 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3272 for (i = 1; i < sig->param_count; ++i)
3273 mono_mb_emit_ldarg (mb, i + 1);
3274 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3277 mono_mb_emit_byte (mb, CEE_LDNULL);
3278 for (i = 0; i < sig->param_count; ++i)
3279 mono_mb_emit_ldarg (mb, i + 1);
3280 mono_mb_emit_op (mb, CEE_CALL, target_method);
3283 if (static_method_with_first_arg_bound) {
3284 mono_mb_emit_ldloc (mb, local_target);
3285 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3286 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3288 for (i = 0; i < sig->param_count; ++i)
3289 mono_mb_emit_ldarg (mb, i + 1);
3290 mono_mb_emit_ldarg (mb, 0);
3291 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3292 mono_mb_emit_byte (mb, CEE_LDIND_I);
3293 mono_mb_emit_ldarg (mb, 0);
3294 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3295 mono_mb_emit_byte (mb, CEE_LDIND_I);
3296 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3297 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3300 mono_mb_emit_byte (mb, CEE_RET);
3302 /* else [delegates != null] */
3303 mono_mb_patch_branch (mb, pos2);
3305 /* len = delegates.Length; */
3306 mono_mb_emit_ldloc (mb, local_delegates);
3307 mono_mb_emit_byte (mb, CEE_LDLEN);
3308 mono_mb_emit_byte (mb, CEE_CONV_I4);
3309 mono_mb_emit_stloc (mb, local_len);
3312 mono_mb_emit_icon (mb, 0);
3313 mono_mb_emit_stloc (mb, local_i);
3315 pos1 = mono_mb_get_label (mb);
3317 /* d = delegates [i]; */
3318 mono_mb_emit_ldloc (mb, local_delegates);
3319 mono_mb_emit_ldloc (mb, local_i);
3320 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3321 mono_mb_emit_stloc (mb, local_d);
3323 /* res = d.Invoke ( args .. ); */
3324 mono_mb_emit_ldloc (mb, local_d);
3325 for (i = 0; i < sig->param_count; i++)
3326 mono_mb_emit_ldarg (mb, i + 1);
3328 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3331 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3332 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3335 mono_mb_emit_stloc (mb, local_res);
3338 mono_mb_emit_add_to_local (mb, local_i, 1);
3341 mono_mb_emit_ldloc (mb, local_i);
3342 mono_mb_emit_ldloc (mb, local_len);
3343 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3347 mono_mb_emit_ldloc (mb, local_res);
3348 mono_mb_emit_byte (mb, CEE_RET);
3350 mb->skip_visibility = 1;
3351 #endif /* DISABLE_JIT */
3353 info = mono_wrapper_info_create (mb, subtype);
3358 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3359 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3360 } else if (callvirt) {
3361 new_key = g_new0 (SignaturePointerPair, 1);
3364 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3368 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3372 /* mono_method_print_code (res); */
3378 * the returned method invokes all methods in a multicast delegate.
3381 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3383 gboolean callvirt = FALSE;
3384 gboolean static_method_with_first_arg_bound = FALSE;
3385 MonoMethod *target_method = NULL;
3386 MonoMethodSignature *sig;
3388 sig = mono_signature_no_pinvoke (method);
3390 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3392 target_method = del->method;
3395 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3396 static_method_with_first_arg_bound = TRUE;
3397 target_method = del->method;
3400 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3404 MonoMethodSignature *ctor_sig;
3405 MonoMethodSignature *sig;
3408 /* protected by the marshal lock, contains CtorSigPair pointers */
3409 static GSList *strsig_list = NULL;
3411 static MonoMethodSignature *
3412 lookup_string_ctor_signature (MonoMethodSignature *sig)
3414 MonoMethodSignature *callsig;
3418 mono_marshal_lock ();
3420 for (item = strsig_list; item; item = item->next) {
3421 cs = (CtorSigPair *)item->data;
3422 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3423 * because it is lock-free.
3425 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3430 mono_marshal_unlock ();
3434 static MonoMethodSignature *
3435 add_string_ctor_signature (MonoMethod *method)
3437 MonoMethodSignature *callsig;
3440 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3441 callsig->ret = &mono_defaults.string_class->byval_arg;
3442 cs = g_new (CtorSigPair, 1);
3444 cs->ctor_sig = mono_method_signature (method);
3446 mono_marshal_lock ();
3447 strsig_list = g_slist_prepend (strsig_list, cs);
3448 mono_marshal_unlock ();
3453 * mono_marshal_get_string_ctor_signature:
3455 * Return the modified signature used by string ctors (they return the newly created
3458 MonoMethodSignature*
3459 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3461 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3463 sig = add_string_ctor_signature (method);
3469 get_runtime_invoke_type (MonoType *t, gboolean ret)
3472 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3474 /* Can't share this with 'I' as that needs another indirection */
3475 return &mono_defaults.int_class->this_arg;
3478 if (MONO_TYPE_IS_REFERENCE (t))
3479 return &mono_defaults.object_class->byval_arg;
3482 /* The result needs to be boxed */
3487 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3490 return &mono_defaults.sbyte_class->byval_arg;
3492 return &mono_defaults.int16_class->byval_arg;
3494 return &mono_defaults.int32_class->byval_arg;
3497 return &mono_defaults.int64_class->byval_arg;
3498 case MONO_TYPE_BOOLEAN:
3499 return &mono_defaults.byte_class->byval_arg;
3500 case MONO_TYPE_CHAR:
3501 return &mono_defaults.uint16_class->byval_arg;
3503 return &mono_defaults.int_class->byval_arg;
3504 case MONO_TYPE_VALUETYPE:
3505 if (t->data.klass->enumtype) {
3506 t = mono_class_enum_basetype (t->data.klass);
3516 * mono_marshal_get_runtime_invoke_sig:
3518 * Return a common signature used for sharing runtime invoke wrappers.
3520 static MonoMethodSignature*
3521 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3523 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3526 res->generic_param_count = 0;
3527 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3528 for (i = 0; i < res->param_count; ++i)
3529 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3535 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3537 /* Can't share wrappers which return a vtype since it needs to be boxed */
3538 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))
3541 return mono_metadata_signature_equal (sig1, sig2);
3549 * Emit the call to the wrapper method from a runtime invoke wrapper.
3552 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3553 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3555 gboolean virtual_, gboolean need_direct_wrapper)
3557 static MonoString *string_dummy = NULL;
3559 int *tmp_nullable_locals;
3560 gboolean void_ret = FALSE;
3561 gboolean string_ctor = method && method->string_ctor;
3563 /* to make it work with our special string constructors */
3564 if (!string_dummy) {
3565 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3566 string_dummy = mono_string_new_wrapper ("dummy");
3570 g_assert (sig->hasthis);
3571 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3576 if (mono_gc_is_moving ()) {
3577 mono_mb_emit_ptr (mb, &string_dummy);
3578 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3580 mono_mb_emit_ptr (mb, string_dummy);
3583 mono_mb_emit_ldarg (mb, 0);
3587 tmp_nullable_locals = g_new0 (int, sig->param_count);
3589 for (i = 0; i < sig->param_count; i++) {
3590 MonoType *t = sig->params [i];
3593 mono_mb_emit_ldarg (mb, 1);
3595 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3596 mono_mb_emit_byte (mb, CEE_ADD);
3600 mono_mb_emit_byte (mb, CEE_LDIND_I);
3601 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3602 * So to make this work we unbox it to a local variablee and push a reference to that.
3604 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3605 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3607 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3608 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3609 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3614 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3615 type = sig->params [i]->type;
3619 case MONO_TYPE_BOOLEAN:
3623 case MONO_TYPE_CHAR:
3632 mono_mb_emit_byte (mb, CEE_LDIND_I);
3633 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3635 case MONO_TYPE_STRING:
3636 case MONO_TYPE_CLASS:
3637 case MONO_TYPE_ARRAY:
3639 case MONO_TYPE_SZARRAY:
3640 case MONO_TYPE_OBJECT:
3641 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3643 case MONO_TYPE_GENERICINST:
3644 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3645 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3650 case MONO_TYPE_VALUETYPE:
3651 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3652 type = mono_class_enum_basetype (t->data.klass)->type;
3655 mono_mb_emit_byte (mb, CEE_LDIND_I);
3656 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3657 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3658 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3659 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3661 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3665 g_assert_not_reached ();
3670 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3671 } else if (need_direct_wrapper) {
3672 mono_mb_emit_op (mb, CEE_CALL, method);
3674 mono_mb_emit_ldarg (mb, 3);
3675 mono_mb_emit_calli (mb, callsig);
3678 if (sig->ret->byref) {
3680 g_assert_not_reached ();
3683 switch (sig->ret->type) {
3684 case MONO_TYPE_VOID:
3688 case MONO_TYPE_BOOLEAN:
3689 case MONO_TYPE_CHAR:
3702 case MONO_TYPE_VALUETYPE:
3703 case MONO_TYPE_TYPEDBYREF:
3704 case MONO_TYPE_GENERICINST:
3705 /* box value types */
3706 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3708 case MONO_TYPE_STRING:
3709 case MONO_TYPE_CLASS:
3710 case MONO_TYPE_ARRAY:
3711 case MONO_TYPE_SZARRAY:
3712 case MONO_TYPE_OBJECT:
3716 /* The result is an IntPtr */
3717 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3720 g_assert_not_reached ();
3724 mono_mb_emit_stloc (mb, loc_res);
3726 /* Convert back nullable-byref arguments */
3727 for (i = 0; i < sig->param_count; i++) {
3728 MonoType *t = sig->params [i];
3731 * Box the result and put it back into the array, the caller will have
3732 * to obtain it from there.
3734 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3735 mono_mb_emit_ldarg (mb, 1);
3736 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3737 mono_mb_emit_byte (mb, CEE_ADD);
3739 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3740 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3742 mono_mb_emit_byte (mb, CEE_STIND_REF);
3746 g_free (tmp_nullable_locals);
3750 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3751 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3752 gboolean virtual_, gboolean need_direct_wrapper)
3755 MonoExceptionClause *clause;
3756 int loc_res, loc_exc;
3758 /* The wrapper looks like this:
3764 * } catch (Exception e) {
3772 /* allocate local 0 (object) tmp */
3773 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3774 /* allocate local 1 (object) exc */
3775 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3777 /* *exc is assumed to be initialized to NULL by the caller */
3779 mono_mb_emit_byte (mb, CEE_LDARG_2);
3780 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3785 labels [1] = mono_mb_get_label (mb);
3786 emit_thread_force_interrupt_checkpoint (mb);
3787 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3789 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3791 /* Add a try clause around the call */
3792 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3793 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3794 clause->data.catch_class = mono_defaults.exception_class;
3795 clause->try_offset = labels [1];
3796 clause->try_len = mono_mb_get_label (mb) - labels [1];
3798 clause->handler_offset = mono_mb_get_label (mb);
3801 mono_mb_emit_stloc (mb, loc_exc);
3802 mono_mb_emit_byte (mb, CEE_LDARG_2);
3803 mono_mb_emit_ldloc (mb, loc_exc);
3804 mono_mb_emit_byte (mb, CEE_STIND_REF);
3806 mono_mb_emit_branch (mb, CEE_LEAVE);
3808 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3810 mono_mb_set_clauses (mb, 1, clause);
3812 mono_mb_patch_branch (mb, labels [2]);
3813 mono_mb_emit_ldloc (mb, loc_res);
3814 mono_mb_emit_byte (mb, CEE_RET);
3819 mono_mb_patch_branch (mb, labels [0]);
3820 emit_thread_force_interrupt_checkpoint (mb);
3821 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3823 mono_mb_emit_ldloc (mb, 0);
3824 mono_mb_emit_byte (mb, CEE_RET);
3829 * generates IL code for the runtime invoke function
3830 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
3832 * we also catch exceptions if exc != null
3833 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
3834 * it means that the compiled code for METHOD does not have to be looked up
3835 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
3836 * its METHOD argument.
3839 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
3841 MonoMethodSignature *sig, *csig, *callsig;
3842 MonoMethodBuilder *mb;
3843 GHashTable *cache = NULL;
3844 MonoClass *target_klass;
3845 MonoMethod *res = NULL;
3846 static MonoMethodSignature *cctor_signature = NULL;
3847 static MonoMethodSignature *finalize_signature = NULL;
3849 const char *param_names [16];
3850 gboolean need_direct_wrapper = FALSE;
3855 if (!cctor_signature) {
3856 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3857 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
3859 if (!finalize_signature) {
3860 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
3861 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
3862 finalize_signature->hasthis = 1;
3866 need_direct_wrapper = TRUE;
3869 * Use a separate cache indexed by methods to speed things up and to avoid the
3870 * boundless mempool growth caused by the signature_dup stuff below.
3873 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
3875 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
3877 res = mono_marshal_find_in_cache (cache, method);
3881 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
3882 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
3884 * Array Get/Set/Address methods. The JIT implements them using inline code
3885 * so we need to create an invoke wrapper which calls the method directly.
3887 need_direct_wrapper = TRUE;
3890 if (method->string_ctor) {
3891 callsig = lookup_string_ctor_signature (mono_method_signature (method));
3893 callsig = add_string_ctor_signature (method);
3894 /* Can't share this as we push a string as this */
3895 need_direct_wrapper = TRUE;
3897 if (method_is_dynamic (method))
3898 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3900 callsig = mono_method_signature (method);
3903 sig = mono_method_signature (method);
3905 target_klass = get_wrapper_target_class (method->klass->image);
3907 /* Try to share wrappers for non-corlib methods with simple signatures */
3908 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
3909 callsig = cctor_signature;
3910 target_klass = mono_defaults.object_class;
3911 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
3912 callsig = finalize_signature;
3913 target_klass = mono_defaults.object_class;
3916 if (need_direct_wrapper) {
3917 /* Already searched at the start */
3919 MonoMethodSignature *tmp_sig;
3921 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
3922 GHashTable **cache_table = NULL;
3924 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3925 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
3927 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
3929 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
3930 (GCompareFunc)runtime_invoke_signature_equal);
3932 /* from mono_marshal_find_in_cache */
3933 mono_marshal_lock ();
3934 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3935 mono_marshal_unlock ();
3942 /* Make a copy of the signature from the image mempool */
3944 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
3948 csig = mono_metadata_signature_alloc (target_klass->image, 4);
3950 csig->ret = &mono_defaults.object_class->byval_arg;
3951 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
3952 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
3954 csig->params [0] = &mono_defaults.object_class->byval_arg;
3955 csig->params [1] = &mono_defaults.int_class->byval_arg;
3956 csig->params [2] = &mono_defaults.int_class->byval_arg;
3957 csig->params [3] = &mono_defaults.int_class->byval_arg;
3960 /* This is called from runtime code so it has to be cdecl */
3961 csig->call_convention = MONO_CALL_C;
3964 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
3965 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
3969 param_names [0] = "this";
3970 param_names [1] = "params";
3971 param_names [2] = "exc";
3972 param_names [3] = "method";
3973 mono_mb_set_param_names (mb, param_names);
3975 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
3978 if (need_direct_wrapper) {
3980 mb->skip_visibility = 1;
3982 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
3983 info->d.runtime_invoke.method = method;
3984 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
3986 /* taken from mono_mb_create_and_cache */
3987 mono_marshal_lock ();
3988 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
3989 mono_marshal_unlock ();
3991 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
3992 info->d.runtime_invoke.sig = callsig;
3994 /* Somebody may have created it before us */
3997 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
3999 mono_marshal_lock ();
4000 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4002 GHashTable *direct_cache;
4004 g_hash_table_insert (cache, callsig, res);
4005 /* Can't insert it into wrapper_hash since the key is a signature */
4006 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4008 g_hash_table_insert (direct_cache, method, res);
4010 mono_free_method (newm);
4012 mono_marshal_unlock ();
4015 /* end mono_mb_create_and_cache */
4024 * mono_marshal_get_runtime_invoke_dynamic:
4026 * Return a method which can be used to invoke managed methods from native code
4028 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4029 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4030 * ARGS should point to an architecture specific structure containing
4031 * the arguments and space for the return value.
4032 * The other arguments are the same as for runtime_invoke (), except that
4033 * ARGS should contain the this argument too.
4034 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4035 * is only one copy of it, which is useful in full-aot.
4036 * The wrapper info for the wrapper is a WrapperInfo structure.
4039 mono_marshal_get_runtime_invoke_dynamic (void)
4041 static MonoMethod *method;
4042 MonoMethodSignature *csig;
4043 MonoExceptionClause *clause;
4044 MonoMethodBuilder *mb;
4052 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4054 csig->ret = &mono_defaults.void_class->byval_arg;
4055 csig->params [0] = &mono_defaults.int_class->byval_arg;
4056 csig->params [1] = &mono_defaults.int_class->byval_arg;
4057 csig->params [2] = &mono_defaults.int_class->byval_arg;
4058 csig->params [3] = &mono_defaults.int_class->byval_arg;
4060 name = g_strdup ("runtime_invoke_dynamic");
4061 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4065 /* allocate local 0 (object) tmp */
4066 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4067 /* allocate local 1 (object) exc */
4068 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4070 /* cond set *exc to null */
4071 mono_mb_emit_byte (mb, CEE_LDARG_1);
4072 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4073 mono_mb_emit_byte (mb, 3);
4074 mono_mb_emit_byte (mb, CEE_LDARG_1);
4075 mono_mb_emit_byte (mb, CEE_LDNULL);
4076 mono_mb_emit_byte (mb, CEE_STIND_REF);
4078 emit_thread_force_interrupt_checkpoint (mb);
4080 mono_mb_emit_byte (mb, CEE_LDARG_0);
4081 mono_mb_emit_byte (mb, CEE_LDARG_2);
4082 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4083 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4085 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4087 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4088 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4089 clause->try_len = mono_mb_get_label (mb);
4092 clause->data.filter_offset = mono_mb_get_label (mb);
4094 mono_mb_emit_byte (mb, CEE_POP);
4095 mono_mb_emit_byte (mb, CEE_LDARG_1);
4096 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4097 mono_mb_emit_byte (mb, CEE_PREFIX1);
4098 mono_mb_emit_byte (mb, CEE_CGT_UN);
4099 mono_mb_emit_byte (mb, CEE_PREFIX1);
4100 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4102 clause->handler_offset = mono_mb_get_label (mb);
4105 /* store exception */
4106 mono_mb_emit_stloc (mb, 1);
4108 mono_mb_emit_byte (mb, CEE_LDARG_1);
4109 mono_mb_emit_ldloc (mb, 1);
4110 mono_mb_emit_byte (mb, CEE_STIND_REF);
4112 mono_mb_emit_byte (mb, CEE_LDNULL);
4113 mono_mb_emit_stloc (mb, 0);
4115 /* Check for the abort exception */
4116 mono_mb_emit_ldloc (mb, 1);
4117 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4118 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4120 /* Delay the abort exception */
4121 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4123 mono_mb_patch_short_branch (mb, posna);
4124 mono_mb_emit_branch (mb, CEE_LEAVE);
4126 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4128 mono_mb_set_clauses (mb, 1, clause);
4131 mono_mb_patch_branch (mb, pos);
4132 //mono_mb_emit_ldloc (mb, 0);
4133 mono_mb_emit_byte (mb, CEE_RET);
4134 #endif /* DISABLE_JIT */
4136 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4138 mono_marshal_lock ();
4139 /* double-checked locking */
4141 method = mono_mb_create (mb, csig, 16, info);
4143 mono_marshal_unlock ();
4151 * mono_marshal_get_runtime_invoke_for_sig:
4153 * Return a runtime invoke wrapper for a given signature.
4156 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4158 MonoMethodSignature *csig, *callsig;
4159 MonoMethodBuilder *mb;
4161 GHashTable *cache = NULL;
4162 GHashTable **cache_table = NULL;
4163 MonoMethod *res = NULL;
4165 const char *param_names [16];
4168 /* A simplified version of mono_marshal_get_runtime_invoke */
4170 image = mono_defaults.corlib;
4172 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4174 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4176 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4177 (GCompareFunc)runtime_invoke_signature_equal);
4179 /* from mono_marshal_find_in_cache */
4180 mono_marshal_lock ();
4181 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4182 mono_marshal_unlock ();
4189 /* Make a copy of the signature from the image mempool */
4190 callsig = mono_metadata_signature_dup_full (image, callsig);
4192 csig = mono_metadata_signature_alloc (image, 4);
4193 csig->ret = &mono_defaults.object_class->byval_arg;
4194 csig->params [0] = &mono_defaults.object_class->byval_arg;
4195 csig->params [1] = &mono_defaults.int_class->byval_arg;
4196 csig->params [2] = &mono_defaults.int_class->byval_arg;
4197 csig->params [3] = &mono_defaults.int_class->byval_arg;
4200 /* This is called from runtime code so it has to be cdecl */
4201 csig->call_convention = MONO_CALL_C;
4204 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4205 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4209 param_names [0] = "this";
4210 param_names [1] = "params";
4211 param_names [2] = "exc";
4212 param_names [3] = "method";
4213 mono_mb_set_param_names (mb, param_names);
4215 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4218 /* taken from mono_mb_create_and_cache */
4219 mono_marshal_lock ();
4220 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4221 mono_marshal_unlock ();
4223 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4224 info->d.runtime_invoke.sig = callsig;
4226 /* Somebody may have created it before us */
4229 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4231 mono_marshal_lock ();
4232 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4235 g_hash_table_insert (cache, callsig, res);
4237 mono_free_method (newm);
4239 mono_marshal_unlock ();
4242 /* end mono_mb_create_and_cache */
4251 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4253 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4254 klass->name_space, klass->name);
4256 mono_mb_emit_exception_marshal_directive (mb, msg);
4261 * generates IL code for the icall wrapper (the generated method
4262 * calls the unmanaged code in func)
4263 * The wrapper info for the wrapper is a WrapperInfo structure.
4266 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4268 MonoMethodSignature *csig, *csig2;
4269 MonoMethodBuilder *mb;
4274 g_assert (sig->pinvoke);
4276 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4278 mb->method->save_lmf = 1;
4280 /* Add an explicit this argument */
4282 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4284 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4288 mono_mb_emit_byte (mb, CEE_LDARG_0);
4290 for (i = 0; i < sig->param_count; i++)
4291 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4293 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4294 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4295 mono_mb_emit_calli (mb, csig2);
4296 if (check_exceptions)
4297 emit_thread_interrupt_checkpoint (mb);
4298 mono_mb_emit_byte (mb, CEE_RET);
4301 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4303 if (csig->call_convention == MONO_CALL_VARARG)
4304 csig->call_convention = 0;
4306 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4307 info->d.icall.func = (gpointer)func;
4308 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4315 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4316 MonoMarshalSpec *spec,
4317 int conv_arg, MonoType **conv_arg_type,
4318 MarshalAction action)
4321 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4322 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4327 static MonoClass *ICustomMarshaler = NULL;
4328 static MonoMethod *cleanup_native, *cleanup_managed;
4329 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4330 MonoMethod *get_instance = NULL;
4331 MonoMethodBuilder *mb = m->mb;
4332 char *exception_msg = NULL;
4336 if (!ICustomMarshaler) {
4337 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4339 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4340 goto handle_exception;
4343 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4344 g_assert (cleanup_native);
4345 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4346 g_assert (cleanup_managed);
4347 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4348 g_assert (marshal_managed_to_native);
4349 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4350 g_assert (marshal_native_to_managed);
4352 mono_memory_barrier ();
4353 ICustomMarshaler = klass;
4356 if (spec->data.custom_data.image)
4357 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, spec->data.custom_data.image);
4359 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
4360 g_assert (mtype != NULL);
4361 mklass = mono_class_from_mono_type (mtype);
4362 g_assert (mklass != NULL);
4364 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4365 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4367 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4369 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4370 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4371 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4372 (get_sig->params [0]->type != MONO_TYPE_STRING))
4373 get_instance = NULL;
4377 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);
4380 /* Throw exception and emit compensation code if neccesary */
4381 if (exception_msg) {
4383 case MARSHAL_ACTION_CONV_IN:
4384 case MARSHAL_ACTION_CONV_RESULT:
4385 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4386 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4387 mono_mb_emit_byte (mb, CEE_POP);
4389 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4390 g_free (exception_msg);
4393 case MARSHAL_ACTION_PUSH:
4394 mono_mb_emit_byte (mb, CEE_LDNULL);
4402 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4403 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4406 case MARSHAL_ACTION_CONV_IN:
4408 case MONO_TYPE_CLASS:
4409 case MONO_TYPE_OBJECT:
4410 case MONO_TYPE_STRING:
4411 case MONO_TYPE_ARRAY:
4412 case MONO_TYPE_SZARRAY:
4413 case MONO_TYPE_VALUETYPE:
4417 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4418 g_assert_not_reached ();
4422 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4424 mono_mb_emit_byte (mb, CEE_LDNULL);
4425 mono_mb_emit_stloc (mb, conv_arg);
4427 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4430 /* Minic MS.NET behavior */
4431 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4434 /* Check for null */
4435 mono_mb_emit_ldarg (mb, argnum);
4437 mono_mb_emit_byte (mb, CEE_LDIND_I);
4438 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4440 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4442 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4444 mono_mb_emit_ldarg (mb, argnum);
4446 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4448 if (t->type == MONO_TYPE_VALUETYPE) {
4450 * Since we can't determine the type of the argument, we
4451 * will assume the unmanaged function takes a pointer.
4453 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4455 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4458 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4459 mono_mb_emit_stloc (mb, conv_arg);
4461 mono_mb_patch_branch (mb, pos2);
4464 case MARSHAL_ACTION_CONV_OUT:
4465 /* Check for null */
4466 mono_mb_emit_ldloc (mb, conv_arg);
4467 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4470 mono_mb_emit_ldarg (mb, argnum);
4472 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4474 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4476 mono_mb_emit_ldloc (mb, conv_arg);
4477 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4478 mono_mb_emit_byte (mb, CEE_STIND_REF);
4479 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4480 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4482 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4484 mono_mb_emit_ldloc (mb, conv_arg);
4485 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4487 /* We have nowhere to store the result */
4488 mono_mb_emit_byte (mb, CEE_POP);
4491 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4493 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4495 mono_mb_emit_ldloc (mb, conv_arg);
4497 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4499 mono_mb_patch_branch (mb, pos2);
4502 case MARSHAL_ACTION_PUSH:
4504 mono_mb_emit_ldloc_addr (mb, conv_arg);
4506 mono_mb_emit_ldloc (mb, conv_arg);
4509 case MARSHAL_ACTION_CONV_RESULT:
4510 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4512 mono_mb_emit_stloc (mb, 3);
4514 mono_mb_emit_ldloc (mb, 3);
4515 mono_mb_emit_stloc (mb, loc1);
4517 /* Check for null */
4518 mono_mb_emit_ldloc (mb, 3);
4519 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4521 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4523 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4524 mono_mb_emit_byte (mb, CEE_DUP);
4526 mono_mb_emit_ldloc (mb, 3);
4527 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4528 mono_mb_emit_stloc (mb, 3);
4530 mono_mb_emit_ldloc (mb, loc1);
4531 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4533 mono_mb_patch_branch (mb, pos2);
4536 case MARSHAL_ACTION_MANAGED_CONV_IN:
4537 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4539 mono_mb_emit_byte (mb, CEE_LDNULL);
4540 mono_mb_emit_stloc (mb, conv_arg);
4542 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4545 /* Check for null */
4546 mono_mb_emit_ldarg (mb, argnum);
4548 mono_mb_emit_byte (mb, CEE_LDIND_I);
4549 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4551 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4552 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4554 mono_mb_emit_ldarg (mb, argnum);
4556 mono_mb_emit_byte (mb, CEE_LDIND_I);
4558 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4559 mono_mb_emit_stloc (mb, conv_arg);
4561 mono_mb_patch_branch (mb, pos2);
4564 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4565 g_assert (!t->byref);
4567 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4569 mono_mb_emit_stloc (mb, 3);
4571 mono_mb_emit_ldloc (mb, 3);
4572 mono_mb_emit_stloc (mb, loc1);
4574 /* Check for null */
4575 mono_mb_emit_ldloc (mb, 3);
4576 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4578 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4579 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4580 mono_mb_emit_byte (mb, CEE_DUP);
4582 mono_mb_emit_ldloc (mb, 3);
4583 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4584 mono_mb_emit_stloc (mb, 3);
4586 mono_mb_emit_ldloc (mb, loc1);
4587 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4589 mono_mb_patch_branch (mb, pos2);
4592 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4594 /* Check for null */
4595 mono_mb_emit_ldloc (mb, conv_arg);
4596 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4599 mono_mb_emit_ldarg (mb, argnum);
4601 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4603 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4605 mono_mb_emit_ldloc (mb, conv_arg);
4606 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4607 mono_mb_emit_byte (mb, CEE_STIND_I);
4610 /* Call CleanUpManagedData */
4611 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4613 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4615 mono_mb_emit_ldloc (mb, conv_arg);
4616 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4618 mono_mb_patch_branch (mb, pos2);
4622 g_assert_not_reached ();
4630 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4631 MonoMarshalSpec *spec,
4632 int conv_arg, MonoType **conv_arg_type,
4633 MarshalAction action)
4636 MonoMethodBuilder *mb = m->mb;
4639 case MARSHAL_ACTION_CONV_IN: {
4640 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4642 g_assert (t->type == MONO_TYPE_OBJECT);
4643 g_assert (!t->byref);
4645 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4646 mono_mb_emit_ldarg (mb, argnum);
4647 mono_mb_emit_icon (mb, encoding);
4648 mono_mb_emit_icon (mb, t->attrs);
4649 mono_mb_emit_icall (mb, mono_marshal_asany);
4650 mono_mb_emit_stloc (mb, conv_arg);
4654 case MARSHAL_ACTION_PUSH:
4655 mono_mb_emit_ldloc (mb, conv_arg);
4658 case MARSHAL_ACTION_CONV_OUT: {
4659 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4661 mono_mb_emit_ldarg (mb, argnum);
4662 mono_mb_emit_ldloc (mb, conv_arg);
4663 mono_mb_emit_icon (mb, encoding);
4664 mono_mb_emit_icon (mb, t->attrs);
4665 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4670 g_assert_not_reached ();
4677 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4678 MonoMarshalSpec *spec,
4679 int conv_arg, MonoType **conv_arg_type,
4680 MarshalAction action)
4683 MonoMethodBuilder *mb = m->mb;
4684 MonoClass *klass, *date_time_class;
4687 klass = mono_class_from_mono_type (t);
4689 date_time_class = mono_class_get_date_time_class ();
4692 case MARSHAL_ACTION_CONV_IN:
4693 if (klass == date_time_class) {
4694 /* Convert it to an OLE DATE type */
4695 static MonoMethod *to_oadate;
4698 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4699 g_assert (to_oadate);
4701 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4704 mono_mb_emit_ldarg (mb, argnum);
4705 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4708 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4710 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4712 mono_mb_emit_ldarg_addr (mb, argnum);
4713 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4714 mono_mb_emit_stloc (mb, conv_arg);
4718 mono_mb_patch_branch (mb, pos);
4722 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4723 klass->blittable || klass->enumtype)
4726 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4728 /* store the address of the source into local variable 0 */
4730 mono_mb_emit_ldarg (mb, argnum);
4732 mono_mb_emit_ldarg_addr (mb, argnum);
4734 mono_mb_emit_stloc (mb, 0);
4736 /* allocate space for the native struct and
4737 * store the address into local variable 1 (dest) */
4738 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4739 mono_mb_emit_byte (mb, CEE_PREFIX1);
4740 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4741 mono_mb_emit_stloc (mb, conv_arg);
4744 mono_mb_emit_ldloc (mb, 0);
4745 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4748 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4750 mono_mb_emit_ldloc (mb, conv_arg);
4751 mono_mb_emit_stloc (mb, 1);
4753 /* emit valuetype conversion code */
4754 emit_struct_conv (mb, klass, FALSE);
4758 mono_mb_patch_branch (mb, pos);
4761 case MARSHAL_ACTION_PUSH:
4762 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4764 g_assert (!t->byref);
4766 /* Have to change the signature since the vtype is passed byref */
4767 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4769 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4770 klass->blittable || klass->enumtype)
4771 mono_mb_emit_ldarg_addr (mb, argnum);
4773 mono_mb_emit_ldloc (mb, conv_arg);
4777 if (klass == date_time_class) {
4779 mono_mb_emit_ldloc_addr (mb, conv_arg);
4781 mono_mb_emit_ldloc (mb, conv_arg);
4785 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4786 klass->blittable || klass->enumtype) {
4787 mono_mb_emit_ldarg (mb, argnum);
4790 mono_mb_emit_ldloc (mb, conv_arg);
4792 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4793 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4797 case MARSHAL_ACTION_CONV_OUT:
4798 if (klass == date_time_class) {
4799 /* Convert from an OLE DATE type */
4800 static MonoMethod *from_oadate;
4805 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4807 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4808 g_assert (from_oadate);
4810 mono_mb_emit_ldarg (mb, argnum);
4811 mono_mb_emit_ldloc (mb, conv_arg);
4812 mono_mb_emit_managed_call (mb, from_oadate, NULL);
4813 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
4818 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4819 klass->blittable || klass->enumtype)
4823 /* dst = argument */
4824 mono_mb_emit_ldarg (mb, argnum);
4825 mono_mb_emit_stloc (mb, 1);
4827 mono_mb_emit_ldloc (mb, 1);
4828 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4830 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4831 /* src = tmp_locals [i] */
4832 mono_mb_emit_ldloc (mb, conv_arg);
4833 mono_mb_emit_stloc (mb, 0);
4835 /* emit valuetype conversion code */
4836 emit_struct_conv (mb, klass, TRUE);
4840 emit_struct_free (mb, klass, conv_arg);
4843 mono_mb_patch_branch (mb, pos);
4846 case MARSHAL_ACTION_CONV_RESULT:
4847 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4849 mono_mb_emit_stloc (mb, 3);
4853 /* load pointer to returned value type */
4854 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4855 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4856 /* store the address of the source into local variable 0 */
4857 mono_mb_emit_stloc (mb, 0);
4859 mono_mb_emit_ldloc_addr (mb, 3);
4860 mono_mb_emit_stloc (mb, 1);
4862 /* emit valuetype conversion code */
4863 emit_struct_conv (mb, klass, TRUE);
4866 case MARSHAL_ACTION_MANAGED_CONV_IN:
4867 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4868 klass->blittable || klass->enumtype) {
4873 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
4875 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4879 mono_mb_emit_ldarg (mb, argnum);
4881 mono_mb_emit_ldarg_addr (mb, argnum);
4882 mono_mb_emit_stloc (mb, 0);
4885 mono_mb_emit_ldloc (mb, 0);
4886 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4889 mono_mb_emit_ldloc_addr (mb, conv_arg);
4890 mono_mb_emit_stloc (mb, 1);
4892 /* emit valuetype conversion code */
4893 emit_struct_conv (mb, klass, TRUE);
4896 mono_mb_patch_branch (mb, pos);
4899 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4900 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4901 klass->blittable || klass->enumtype) {
4905 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
4908 /* Check for null */
4909 mono_mb_emit_ldarg (mb, argnum);
4910 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4913 mono_mb_emit_ldloc_addr (mb, conv_arg);
4914 mono_mb_emit_stloc (mb, 0);
4917 mono_mb_emit_ldarg (mb, argnum);
4918 mono_mb_emit_stloc (mb, 1);
4920 /* emit valuetype conversion code */
4921 emit_struct_conv (mb, klass, FALSE);
4923 mono_mb_patch_branch (mb, pos2);
4926 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4927 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4928 klass->blittable || klass->enumtype) {
4929 mono_mb_emit_stloc (mb, 3);
4934 /* load pointer to returned value type */
4935 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4936 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
4938 /* store the address of the source into local variable 0 */
4939 mono_mb_emit_stloc (mb, 0);
4940 /* allocate space for the native struct and
4941 * store the address into dst_ptr */
4942 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4943 m->retobj_class = klass;
4944 g_assert (m->retobj_var);
4945 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4946 mono_mb_emit_byte (mb, CEE_CONV_I);
4947 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
4948 mono_mb_emit_stloc (mb, 1);
4949 mono_mb_emit_ldloc (mb, 1);
4950 mono_mb_emit_stloc (mb, m->retobj_var);
4952 /* emit valuetype conversion code */
4953 emit_struct_conv (mb, klass, FALSE);
4957 g_assert_not_reached ();
4964 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
4965 MonoMarshalSpec *spec,
4966 int conv_arg, MonoType **conv_arg_type,
4967 MarshalAction action)
4971 case MARSHAL_ACTION_CONV_IN:
4972 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4974 case MARSHAL_ACTION_MANAGED_CONV_IN:
4975 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4979 MonoMethodBuilder *mb = m->mb;
4980 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
4981 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
4985 case MARSHAL_ACTION_CONV_IN:
4986 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4987 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4990 if (t->attrs & PARAM_ATTRIBUTE_OUT)
4993 mono_mb_emit_ldarg (mb, argnum);
4994 mono_mb_emit_byte (mb, CEE_LDIND_I);
4996 mono_mb_emit_ldarg (mb, argnum);
5000 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5001 mono_mb_emit_exception_marshal_directive (mb, msg);
5003 mono_mb_emit_icall (mb, conv_to_icall (conv));
5005 mono_mb_emit_stloc (mb, conv_arg);
5009 case MARSHAL_ACTION_CONV_OUT:
5010 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5012 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5013 mono_mb_emit_exception_marshal_directive (mb, msg);
5017 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5018 static MonoMethod *m;
5021 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5026 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5027 mono_mb_emit_exception_marshal_directive (mb, msg);
5032 * Have to allocate a new string with the same length as the original, and
5033 * copy the contents of the buffer pointed to by CONV_ARG into it.
5035 g_assert (t->byref);
5036 mono_mb_emit_ldarg (mb, argnum);
5037 mono_mb_emit_ldloc (mb, conv_arg);
5038 mono_mb_emit_ldarg (mb, argnum);
5039 mono_mb_emit_byte (mb, CEE_LDIND_I);
5040 mono_mb_emit_managed_call (mb, m, NULL);
5041 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5042 mono_mb_emit_byte (mb, CEE_STIND_REF);
5043 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5044 mono_mb_emit_ldarg (mb, argnum);
5045 mono_mb_emit_ldloc (mb, conv_arg);
5046 mono_mb_emit_icall (mb, conv_to_icall (conv));
5047 mono_mb_emit_byte (mb, CEE_STIND_REF);
5052 mono_mb_emit_ldloc (mb, conv_arg);
5053 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5054 mono_mb_emit_icall (mb, mono_free_bstr);
5056 mono_mb_emit_icall (mb, mono_marshal_free);
5060 case MARSHAL_ACTION_PUSH:
5061 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5062 mono_mb_emit_ldloc_addr (mb, conv_arg);
5064 mono_mb_emit_ldloc (mb, conv_arg);
5067 case MARSHAL_ACTION_CONV_RESULT:
5068 mono_mb_emit_stloc (mb, 0);
5070 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5072 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5073 mono_mb_emit_exception_marshal_directive (mb, msg);
5077 mono_mb_emit_ldloc (mb, 0);
5078 mono_mb_emit_icall (mb, conv_to_icall (conv));
5079 mono_mb_emit_stloc (mb, 3);
5081 /* free the string */
5082 mono_mb_emit_ldloc (mb, 0);
5083 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5084 mono_mb_emit_icall (mb, mono_free_bstr);
5086 mono_mb_emit_icall (mb, mono_marshal_free);
5089 case MARSHAL_ACTION_MANAGED_CONV_IN:
5090 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5092 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5095 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5099 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5101 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5102 mono_mb_emit_exception_marshal_directive (mb, msg);
5106 mono_mb_emit_ldarg (mb, argnum);
5108 mono_mb_emit_byte (mb, CEE_LDIND_I);
5109 mono_mb_emit_icall (mb, conv_to_icall (conv));
5110 mono_mb_emit_stloc (mb, conv_arg);
5113 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5116 mono_mb_emit_ldarg (mb, argnum);
5117 mono_mb_emit_ldloc (mb, conv_arg);
5118 mono_mb_emit_icall (mb, conv_to_icall (conv));
5119 mono_mb_emit_byte (mb, CEE_STIND_I);
5124 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5125 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
5126 /* We need to make a copy so the caller is able to free it */
5127 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5129 mono_mb_emit_icall (mb, conv_to_icall (conv));
5130 mono_mb_emit_stloc (mb, 3);
5134 g_assert_not_reached ();
5142 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5143 MonoMarshalSpec *spec, int conv_arg,
5144 MonoType **conv_arg_type, MarshalAction action)
5147 if (action == MARSHAL_ACTION_CONV_IN)
5148 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5150 MonoMethodBuilder *mb = m->mb;
5153 case MARSHAL_ACTION_CONV_IN: {
5154 MonoType *intptr_type;
5155 int dar_release_slot, pos;
5157 intptr_type = &mono_defaults.int_class->byval_arg;
5158 conv_arg = mono_mb_add_local (mb, intptr_type);
5159 *conv_arg_type = intptr_type;
5161 if (!sh_dangerous_add_ref)
5162 init_safe_handle ();
5164 mono_mb_emit_ldarg (mb, argnum);
5165 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5166 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5168 mono_mb_patch_branch (mb, pos);
5171 * My tests in show that ref SafeHandles are not really
5172 * passed as ref objects. Instead a NULL is passed as the
5175 mono_mb_emit_icon (mb, 0);
5176 mono_mb_emit_stloc (mb, conv_arg);
5180 /* Create local to hold the ref parameter to DangerousAddRef */
5181 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5183 /* set release = false; */
5184 mono_mb_emit_icon (mb, 0);
5185 mono_mb_emit_stloc (mb, dar_release_slot);
5187 /* safehandle.DangerousAddRef (ref release) */
5188 mono_mb_emit_ldarg (mb, argnum);
5189 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5190 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5192 /* Pull the handle field from SafeHandle */
5193 mono_mb_emit_ldarg (mb, argnum);
5194 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5195 mono_mb_emit_byte (mb, CEE_LDIND_I);
5196 mono_mb_emit_stloc (mb, conv_arg);
5201 case MARSHAL_ACTION_PUSH:
5203 mono_mb_emit_ldloc_addr (mb, conv_arg);
5205 mono_mb_emit_ldloc (mb, conv_arg);
5208 case MARSHAL_ACTION_CONV_OUT: {
5209 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5210 int dar_release_slot = conv_arg + 1;
5213 if (!sh_dangerous_release)
5214 init_safe_handle ();
5220 * My tests indicate that ref SafeHandles parameters are not actually
5221 * passed by ref, but instead a new Handle is created regardless of
5222 * whether a change happens in the unmanaged side.
5224 * Also, the Handle is created before calling into unmanaged code,
5225 * but we do not support that mechanism (getting to the original
5226 * handle) and it makes no difference where we create this
5228 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5230 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5233 /* refval = new SafeHandleDerived ()*/
5234 mono_mb_emit_ldarg (mb, argnum);
5235 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5236 mono_mb_emit_byte (mb, CEE_STIND_REF);
5238 /* refval.handle = returned_handle */
5239 mono_mb_emit_ldarg (mb, argnum);
5240 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5241 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5242 mono_mb_emit_ldloc (mb, conv_arg);
5243 mono_mb_emit_byte (mb, CEE_STIND_I);
5245 mono_mb_emit_ldloc (mb, dar_release_slot);
5246 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5247 mono_mb_emit_ldarg (mb, argnum);
5248 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5249 mono_mb_patch_branch (mb, label_next);
5254 case MARSHAL_ACTION_CONV_RESULT: {
5255 MonoMethod *ctor = NULL;
5256 int intptr_handle_slot;
5258 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5259 mono_mb_emit_byte (mb, CEE_POP);
5260 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5264 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5266 mono_mb_emit_byte (mb, CEE_POP);
5267 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5270 /* Store the IntPtr results into a local */
5271 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5272 mono_mb_emit_stloc (mb, intptr_handle_slot);
5274 /* Create return value */
5275 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5276 mono_mb_emit_stloc (mb, 3);
5278 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5279 mono_mb_emit_ldloc (mb, 3);
5280 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5281 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5282 mono_mb_emit_byte (mb, CEE_STIND_I);
5286 case MARSHAL_ACTION_MANAGED_CONV_IN:
5287 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5290 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5291 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5294 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5295 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5298 printf ("Unhandled case for MarshalAction: %d\n", action);
5306 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5307 MonoMarshalSpec *spec, int conv_arg,
5308 MonoType **conv_arg_type, MarshalAction action)
5311 if (action == MARSHAL_ACTION_CONV_IN)
5312 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5314 MonoMethodBuilder *mb = m->mb;
5317 case MARSHAL_ACTION_CONV_IN: {
5318 MonoType *intptr_type;
5320 intptr_type = &mono_defaults.int_class->byval_arg;
5321 conv_arg = mono_mb_add_local (mb, intptr_type);
5322 *conv_arg_type = intptr_type;
5325 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5326 mono_mb_emit_exception_marshal_directive (mb, msg);
5329 mono_mb_emit_ldarg_addr (mb, argnum);
5330 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5331 mono_mb_emit_byte (mb, CEE_ADD);
5332 mono_mb_emit_byte (mb, CEE_LDIND_I);
5333 mono_mb_emit_stloc (mb, conv_arg);
5337 case MARSHAL_ACTION_PUSH:
5338 mono_mb_emit_ldloc (mb, conv_arg);
5341 case MARSHAL_ACTION_CONV_OUT: {
5342 /* no resource release required */
5346 case MARSHAL_ACTION_CONV_RESULT: {
5347 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5348 mono_mb_emit_exception_marshal_directive (mb, msg);
5352 case MARSHAL_ACTION_MANAGED_CONV_IN:
5353 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5356 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5357 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5360 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5361 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5364 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5372 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5373 MonoMarshalSpec *spec,
5374 int conv_arg, MonoType **conv_arg_type,
5375 MarshalAction action)
5378 if (action == MARSHAL_ACTION_CONV_IN)
5379 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5381 MonoMethodBuilder *mb = m->mb;
5382 MonoClass *klass = mono_class_from_mono_type (t);
5386 case MARSHAL_ACTION_CONV_IN:
5387 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5388 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5390 m->orig_conv_args [argnum] = 0;
5392 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5393 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5394 mono_mb_emit_exception_marshal_directive (mb, msg);
5398 if (klass->delegate) {
5400 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5401 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5402 mono_mb_emit_exception_marshal_directive (mb, msg);
5404 mono_mb_emit_byte (mb, CEE_LDNULL);
5405 mono_mb_emit_stloc (mb, conv_arg);
5407 mono_mb_emit_ldarg (mb, argnum);
5408 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5409 mono_mb_emit_stloc (mb, conv_arg);
5411 } else if (klass == mono_defaults.stringbuilder_class) {
5412 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5413 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5417 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5418 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5419 mono_mb_emit_exception_marshal_directive (mb, msg);
5425 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5429 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5430 mono_mb_emit_exception_marshal_directive (mb, msg);
5434 mono_mb_emit_ldarg (mb, argnum);
5436 mono_mb_emit_byte (mb, CEE_LDIND_I);
5438 mono_mb_emit_icall (mb, conv_to_icall (conv));
5439 mono_mb_emit_stloc (mb, conv_arg);
5440 } else if (klass->blittable) {
5441 mono_mb_emit_byte (mb, CEE_LDNULL);
5442 mono_mb_emit_stloc (mb, conv_arg);
5444 mono_mb_emit_ldarg (mb, argnum);
5445 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5447 mono_mb_emit_ldarg (mb, argnum);
5448 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5449 mono_mb_emit_stloc (mb, conv_arg);
5451 mono_mb_patch_branch (mb, pos);
5454 mono_mb_emit_byte (mb, CEE_LDNULL);
5455 mono_mb_emit_stloc (mb, conv_arg);
5458 /* we dont need any conversions for out parameters */
5459 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5462 mono_mb_emit_ldarg (mb, argnum);
5463 mono_mb_emit_byte (mb, CEE_LDIND_I);
5466 mono_mb_emit_ldarg (mb, argnum);
5467 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5468 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5471 /* store the address of the source into local variable 0 */
5472 mono_mb_emit_stloc (mb, 0);
5473 mono_mb_emit_ldloc (mb, 0);
5474 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5476 /* allocate space for the native struct and store the address */
5477 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5478 mono_mb_emit_byte (mb, CEE_PREFIX1);
5479 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5480 mono_mb_emit_stloc (mb, conv_arg);
5483 /* Need to store the original buffer so we can free it later */
5484 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5485 mono_mb_emit_ldloc (mb, conv_arg);
5486 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5489 /* set the src_ptr */
5490 mono_mb_emit_ldloc (mb, 0);
5491 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5492 mono_mb_emit_stloc (mb, 0);
5495 mono_mb_emit_ldloc (mb, conv_arg);
5496 mono_mb_emit_stloc (mb, 1);
5498 /* emit valuetype conversion code */
5499 emit_struct_conv (mb, klass, FALSE);
5501 mono_mb_patch_branch (mb, pos);
5505 case MARSHAL_ACTION_CONV_OUT:
5506 if (klass == mono_defaults.stringbuilder_class) {
5508 MonoMarshalNative encoding;
5509 MonoMarshalConv conv;
5511 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5512 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5514 g_assert (encoding != -1);
5517 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5521 mono_mb_emit_ldarg (mb, argnum);
5522 mono_mb_emit_ldloc (mb, conv_arg);
5525 case MONO_NATIVE_LPWSTR:
5526 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5528 case MONO_NATIVE_LPSTR:
5529 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5532 g_assert_not_reached ();
5535 mono_mb_emit_byte (mb, CEE_STIND_REF);
5537 mono_mb_emit_ldarg (mb, argnum);
5538 mono_mb_emit_ldloc (mb, conv_arg);
5540 mono_mb_emit_icall (mb, conv_to_icall (conv));
5544 mono_mb_emit_ldloc (mb, conv_arg);
5545 mono_mb_emit_icall (mb, mono_marshal_free);
5550 if (klass->delegate) {
5552 mono_mb_emit_ldarg (mb, argnum);
5553 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5554 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5555 mono_mb_emit_ldloc (mb, conv_arg);
5556 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5557 mono_mb_emit_byte (mb, CEE_STIND_REF);
5562 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5563 /* allocate a new object */
5564 mono_mb_emit_ldarg (mb, argnum);
5565 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5566 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5567 mono_mb_emit_byte (mb, CEE_STIND_REF);
5570 /* dst = *argument */
5571 mono_mb_emit_ldarg (mb, argnum);
5574 mono_mb_emit_byte (mb, CEE_LDIND_I);
5576 mono_mb_emit_stloc (mb, 1);
5578 mono_mb_emit_ldloc (mb, 1);
5579 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5581 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5582 mono_mb_emit_ldloc (mb, 1);
5583 mono_mb_emit_icon (mb, sizeof (MonoObject));
5584 mono_mb_emit_byte (mb, CEE_ADD);
5585 mono_mb_emit_stloc (mb, 1);
5587 /* src = tmp_locals [i] */
5588 mono_mb_emit_ldloc (mb, conv_arg);
5589 mono_mb_emit_stloc (mb, 0);
5591 /* emit valuetype conversion code */
5592 emit_struct_conv (mb, klass, TRUE);
5594 /* Free the structure returned by the native code */
5595 emit_struct_free (mb, klass, conv_arg);
5597 if (m->orig_conv_args [argnum]) {
5599 * If the native function changed the pointer, then free
5600 * the original structure plus the new pointer.
5602 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5603 mono_mb_emit_ldloc (mb, conv_arg);
5604 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5606 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5607 g_assert (m->orig_conv_args [argnum]);
5609 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5612 mono_mb_emit_ldloc (mb, conv_arg);
5613 mono_mb_emit_icall (mb, mono_marshal_free);
5615 mono_mb_patch_branch (mb, pos2);
5619 /* Free the original structure passed to native code */
5620 emit_struct_free (mb, klass, conv_arg);
5622 mono_mb_patch_branch (mb, pos);
5625 case MARSHAL_ACTION_PUSH:
5627 mono_mb_emit_ldloc_addr (mb, conv_arg);
5629 mono_mb_emit_ldloc (mb, conv_arg);
5632 case MARSHAL_ACTION_CONV_RESULT:
5633 if (klass->delegate) {
5634 g_assert (!t->byref);
5635 mono_mb_emit_stloc (mb, 0);
5636 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5637 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5638 mono_mb_emit_ldloc (mb, 0);
5639 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5640 mono_mb_emit_stloc (mb, 3);
5643 mono_mb_emit_stloc (mb, 0);
5645 /* Make a copy since emit_conv modifies local 0 */
5646 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5647 mono_mb_emit_ldloc (mb, 0);
5648 mono_mb_emit_stloc (mb, loc);
5650 mono_mb_emit_byte (mb, CEE_LDNULL);
5651 mono_mb_emit_stloc (mb, 3);
5653 mono_mb_emit_ldloc (mb, 0);
5654 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5656 /* allocate result object */
5658 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5659 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5660 mono_mb_emit_stloc (mb, 3);
5664 mono_mb_emit_ldloc (mb, 3);
5665 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5666 mono_mb_emit_stloc (mb, 1);
5668 /* emit conversion code */
5669 emit_struct_conv (mb, klass, TRUE);
5671 emit_struct_free (mb, klass, loc);
5673 /* Free the pointer allocated by unmanaged code */
5674 mono_mb_emit_ldloc (mb, loc);
5675 mono_mb_emit_icall (mb, mono_marshal_free);
5676 mono_mb_patch_branch (mb, pos);
5680 case MARSHAL_ACTION_MANAGED_CONV_IN:
5681 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5683 if (klass->delegate) {
5684 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5685 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5686 mono_mb_emit_ldarg (mb, argnum);
5688 mono_mb_emit_byte (mb, CEE_LDIND_I);
5689 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
5690 mono_mb_emit_stloc (mb, conv_arg);
5694 if (klass == mono_defaults.stringbuilder_class) {
5695 MonoMarshalNative encoding;
5697 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5700 g_assert (encoding == MONO_NATIVE_LPSTR);
5702 g_assert (!t->byref);
5703 g_assert (encoding != -1);
5705 mono_mb_emit_ldarg (mb, argnum);
5706 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5707 mono_mb_emit_stloc (mb, conv_arg);
5711 /* The class can not have an automatic layout */
5712 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5713 mono_mb_emit_auto_layout_exception (mb, klass);
5717 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5718 mono_mb_emit_byte (mb, CEE_LDNULL);
5719 mono_mb_emit_stloc (mb, conv_arg);
5724 mono_mb_emit_ldarg (mb, argnum);
5728 /* Check for NULL and raise an exception */
5729 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5731 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5733 mono_mb_patch_branch (mb, pos2);
5734 mono_mb_emit_ldarg (mb, argnum);
5735 mono_mb_emit_byte (mb, CEE_LDIND_I);
5738 mono_mb_emit_stloc (mb, 0);
5740 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5741 mono_mb_emit_stloc (mb, conv_arg);
5743 mono_mb_emit_ldloc (mb, 0);
5744 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5746 /* Create and set dst */
5747 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5748 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5749 mono_mb_emit_stloc (mb, conv_arg);
5750 mono_mb_emit_ldloc (mb, conv_arg);
5751 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5752 mono_mb_emit_stloc (mb, 1);
5754 /* emit valuetype conversion code */
5755 emit_struct_conv (mb, klass, TRUE);
5757 mono_mb_patch_branch (mb, pos);
5760 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5761 if (klass->delegate) {
5763 mono_mb_emit_ldarg (mb, argnum);
5764 mono_mb_emit_ldloc (mb, conv_arg);
5765 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5766 mono_mb_emit_byte (mb, CEE_STIND_I);
5772 /* Check for null */
5773 mono_mb_emit_ldloc (mb, conv_arg);
5774 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5775 mono_mb_emit_ldarg (mb, argnum);
5776 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5777 mono_mb_emit_byte (mb, CEE_STIND_REF);
5778 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5780 mono_mb_patch_branch (mb, pos);
5783 mono_mb_emit_ldloc (mb, conv_arg);
5784 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5785 mono_mb_emit_stloc (mb, 0);
5787 /* Allocate and set dest */
5788 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5789 mono_mb_emit_byte (mb, CEE_CONV_I);
5790 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5791 mono_mb_emit_stloc (mb, 1);
5793 /* Update argument pointer */
5794 mono_mb_emit_ldarg (mb, argnum);
5795 mono_mb_emit_ldloc (mb, 1);
5796 mono_mb_emit_byte (mb, CEE_STIND_I);
5798 /* emit valuetype conversion code */
5799 emit_struct_conv (mb, klass, FALSE);
5801 mono_mb_patch_branch (mb, pos2);
5802 } else if (klass == mono_defaults.stringbuilder_class) {
5803 // FIXME: What to do here ?
5805 /* byval [Out] marshalling */
5807 /* FIXME: Handle null */
5810 mono_mb_emit_ldloc (mb, conv_arg);
5811 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5812 mono_mb_emit_stloc (mb, 0);
5815 mono_mb_emit_ldarg (mb, argnum);
5816 mono_mb_emit_stloc (mb, 1);
5818 /* emit valuetype conversion code */
5819 emit_struct_conv (mb, klass, FALSE);
5823 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5824 if (klass->delegate) {
5825 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
5826 mono_mb_emit_stloc (mb, 3);
5830 /* The class can not have an automatic layout */
5831 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5832 mono_mb_emit_auto_layout_exception (mb, klass);
5836 mono_mb_emit_stloc (mb, 0);
5837 /* Check for null */
5838 mono_mb_emit_ldloc (mb, 0);
5839 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5840 mono_mb_emit_byte (mb, CEE_LDNULL);
5841 mono_mb_emit_stloc (mb, 3);
5842 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5844 mono_mb_patch_branch (mb, pos);
5847 mono_mb_emit_ldloc (mb, 0);
5848 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5849 mono_mb_emit_stloc (mb, 0);
5851 /* Allocate and set dest */
5852 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5853 mono_mb_emit_byte (mb, CEE_CONV_I);
5854 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5855 mono_mb_emit_byte (mb, CEE_DUP);
5856 mono_mb_emit_stloc (mb, 1);
5857 mono_mb_emit_stloc (mb, 3);
5859 emit_struct_conv (mb, klass, FALSE);
5861 mono_mb_patch_branch (mb, pos2);
5865 g_assert_not_reached ();
5876 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
5877 MonoMarshalSpec *spec,
5878 int conv_arg, MonoType **conv_arg_type,
5879 MarshalAction action)
5881 MonoMethodBuilder *mb = m->mb;
5882 static MonoMethod *get_object_for_native_variant = NULL;
5883 static MonoMethod *get_native_variant_for_object = NULL;
5885 if (!get_object_for_native_variant)
5886 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
5887 g_assert (get_object_for_native_variant);
5889 if (!get_native_variant_for_object)
5890 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
5891 g_assert (get_native_variant_for_object);
5894 case MARSHAL_ACTION_CONV_IN: {
5895 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
5898 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5900 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5902 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5905 mono_mb_emit_ldarg (mb, argnum);
5907 mono_mb_emit_byte(mb, CEE_LDIND_REF);
5908 mono_mb_emit_ldloc_addr (mb, conv_arg);
5909 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5913 case MARSHAL_ACTION_CONV_OUT: {
5914 static MonoMethod *variant_clear = NULL;
5917 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
5918 g_assert (variant_clear);
5921 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5922 mono_mb_emit_ldarg (mb, argnum);
5923 mono_mb_emit_ldloc_addr (mb, conv_arg);
5924 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5925 mono_mb_emit_byte (mb, CEE_STIND_REF);
5928 mono_mb_emit_ldloc_addr (mb, conv_arg);
5929 mono_mb_emit_managed_call (mb, variant_clear, NULL);
5933 case MARSHAL_ACTION_PUSH:
5935 mono_mb_emit_ldloc_addr (mb, conv_arg);
5937 mono_mb_emit_ldloc (mb, conv_arg);
5940 case MARSHAL_ACTION_CONV_RESULT: {
5941 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5942 mono_mb_emit_exception_marshal_directive (mb, msg);
5946 case MARSHAL_ACTION_MANAGED_CONV_IN: {
5947 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5950 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
5952 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
5954 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
5958 mono_mb_emit_ldarg (mb, argnum);
5960 mono_mb_emit_ldarg_addr (mb, argnum);
5961 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
5962 mono_mb_emit_stloc (mb, conv_arg);
5966 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
5967 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5968 mono_mb_emit_ldloc (mb, conv_arg);
5969 mono_mb_emit_ldarg (mb, argnum);
5970 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
5975 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
5976 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
5977 mono_mb_emit_exception_marshal_directive (mb, msg);
5982 g_assert_not_reached ();
5988 #endif /* DISABLE_COM */
5989 #endif /* DISABLE_JIT */
5992 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
5994 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
5995 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
5997 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
5999 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6011 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6012 MonoMarshalSpec *spec,
6013 int conv_arg, MonoType **conv_arg_type,
6014 MarshalAction action)
6018 case MARSHAL_ACTION_CONV_IN:
6019 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6021 case MARSHAL_ACTION_MANAGED_CONV_IN:
6022 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6026 MonoMethodBuilder *mb = m->mb;
6027 MonoClass *klass = mono_class_from_mono_type (t);
6028 gboolean need_convert, need_free;
6029 MonoMarshalNative encoding;
6031 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6034 case MARSHAL_ACTION_CONV_IN:
6035 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6036 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6038 if (klass->element_class->blittable) {
6039 mono_mb_emit_ldarg (mb, argnum);
6041 mono_mb_emit_byte (mb, CEE_LDIND_I);
6042 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
6043 mono_mb_emit_stloc (mb, conv_arg);
6046 guint32 label1, label2, label3;
6047 int index_var, src_var, dest_ptr, esize;
6048 MonoMarshalConv conv;
6049 gboolean is_string = FALSE;
6051 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6053 eklass = klass->element_class;
6055 if (eklass == mono_defaults.string_class) {
6057 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6059 else if (eklass == mono_defaults.stringbuilder_class) {
6061 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6064 conv = (MonoMarshalConv)-1;
6066 if (is_string && conv == -1) {
6067 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6068 mono_mb_emit_exception_marshal_directive (mb, msg);
6072 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6073 mono_mb_emit_ldarg (mb, argnum);
6075 mono_mb_emit_byte (mb, CEE_LDIND_I);
6076 mono_mb_emit_stloc (mb, src_var);
6079 mono_mb_emit_ldloc (mb, src_var);
6080 mono_mb_emit_stloc (mb, conv_arg);
6081 mono_mb_emit_ldloc (mb, src_var);
6082 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6085 esize = sizeof (gpointer);
6086 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6087 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6089 esize = mono_class_native_size (eklass, NULL);
6091 /* allocate space for the native struct and store the address */
6092 mono_mb_emit_icon (mb, esize);
6093 mono_mb_emit_ldloc (mb, src_var);
6094 mono_mb_emit_byte (mb, CEE_LDLEN);
6096 if (eklass == mono_defaults.string_class) {
6097 /* Make the array bigger for the terminating null */
6098 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6099 mono_mb_emit_byte (mb, CEE_ADD);
6101 mono_mb_emit_byte (mb, CEE_MUL);
6102 mono_mb_emit_byte (mb, CEE_PREFIX1);
6103 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6104 mono_mb_emit_stloc (mb, conv_arg);
6106 mono_mb_emit_ldloc (mb, conv_arg);
6107 mono_mb_emit_stloc (mb, dest_ptr);
6109 /* Emit marshalling loop */
6110 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6111 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6112 mono_mb_emit_stloc (mb, index_var);
6113 label2 = mono_mb_get_label (mb);
6114 mono_mb_emit_ldloc (mb, index_var);
6115 mono_mb_emit_ldloc (mb, src_var);
6116 mono_mb_emit_byte (mb, CEE_LDLEN);
6117 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6119 /* Emit marshalling code */
6122 mono_mb_emit_ldloc (mb, dest_ptr);
6123 mono_mb_emit_ldloc (mb, src_var);
6124 mono_mb_emit_ldloc (mb, index_var);
6125 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6126 mono_mb_emit_icall (mb, conv_to_icall (conv));
6127 mono_mb_emit_byte (mb, CEE_STIND_I);
6129 /* set the src_ptr */
6130 mono_mb_emit_ldloc (mb, src_var);
6131 mono_mb_emit_ldloc (mb, index_var);
6132 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6133 mono_mb_emit_stloc (mb, 0);
6136 mono_mb_emit_ldloc (mb, dest_ptr);
6137 mono_mb_emit_stloc (mb, 1);
6139 /* emit valuetype conversion code */
6140 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6143 mono_mb_emit_add_to_local (mb, index_var, 1);
6144 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6146 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6148 mono_mb_patch_branch (mb, label3);
6150 if (eklass == mono_defaults.string_class) {
6151 /* Null terminate */
6152 mono_mb_emit_ldloc (mb, dest_ptr);
6153 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6154 mono_mb_emit_byte (mb, CEE_STIND_REF);
6157 mono_mb_patch_branch (mb, label1);
6162 case MARSHAL_ACTION_CONV_OUT:
6163 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6164 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);
6165 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6168 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6169 int param_num = spec->data.array_data.param_num;
6170 MonoType *param_type;
6172 param_type = m->sig->params [param_num];
6174 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6175 char *msg = g_strdup ("Not implemented.");
6176 mono_mb_emit_exception_marshal_directive (mb, msg);
6181 mono_mb_emit_ldarg (mb, argnum);
6183 /* Create the managed array */
6184 mono_mb_emit_ldarg (mb, param_num);
6185 if (m->sig->params [param_num]->byref)
6186 // FIXME: Support other types
6187 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6188 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6189 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6190 /* Store into argument */
6191 mono_mb_emit_byte (mb, CEE_STIND_I);
6195 if (need_convert || need_free) {
6196 /* FIXME: Optimize blittable case */
6198 guint32 label1, label2, label3;
6199 int index_var, src_ptr, loc, esize;
6201 eklass = klass->element_class;
6202 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6203 esize = sizeof (gpointer);
6204 else if (eklass == mono_defaults.char_class)
6205 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6207 esize = mono_class_native_size (eklass, NULL);
6208 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6209 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6212 mono_mb_emit_ldarg (mb, argnum);
6214 mono_mb_emit_byte (mb, CEE_LDIND_I);
6215 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6217 mono_mb_emit_ldloc (mb, conv_arg);
6218 mono_mb_emit_stloc (mb, src_ptr);
6220 /* Emit marshalling loop */
6221 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6222 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6223 mono_mb_emit_stloc (mb, index_var);
6224 label2 = mono_mb_get_label (mb);
6225 mono_mb_emit_ldloc (mb, index_var);
6226 mono_mb_emit_ldarg (mb, argnum);
6228 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6229 mono_mb_emit_byte (mb, CEE_LDLEN);
6230 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6232 /* Emit marshalling code */
6234 if (eklass == mono_defaults.stringbuilder_class) {
6235 gboolean need_free2;
6236 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6238 g_assert (conv != -1);
6241 mono_mb_emit_ldarg (mb, argnum);
6243 mono_mb_emit_byte (mb, CEE_LDIND_I);
6244 mono_mb_emit_ldloc (mb, index_var);
6245 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6248 mono_mb_emit_ldloc (mb, src_ptr);
6249 mono_mb_emit_byte (mb, CEE_LDIND_I);
6251 mono_mb_emit_icall (mb, conv_to_icall (conv));
6255 mono_mb_emit_ldloc (mb, src_ptr);
6256 mono_mb_emit_byte (mb, CEE_LDIND_I);
6258 mono_mb_emit_icall (mb, mono_marshal_free);
6261 else if (eklass == mono_defaults.string_class) {
6264 mono_mb_emit_ldloc (mb, src_ptr);
6265 mono_mb_emit_byte (mb, CEE_LDIND_I);
6267 mono_mb_emit_icall (mb, mono_marshal_free);
6272 /* set the src_ptr */
6273 mono_mb_emit_ldloc (mb, src_ptr);
6274 mono_mb_emit_stloc (mb, 0);
6277 mono_mb_emit_ldarg (mb, argnum);
6279 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6280 mono_mb_emit_ldloc (mb, index_var);
6281 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6282 mono_mb_emit_stloc (mb, 1);
6284 /* emit valuetype conversion code */
6285 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6289 mono_mb_emit_ldloc (mb, src_ptr);
6290 mono_mb_emit_stloc (mb, loc);
6291 mono_mb_emit_ldloc (mb, loc);
6293 emit_struct_free (mb, eklass, loc);
6297 mono_mb_emit_add_to_local (mb, index_var, 1);
6298 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6300 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6302 mono_mb_patch_branch (mb, label1);
6303 mono_mb_patch_branch (mb, label3);
6306 if (klass->element_class->blittable) {
6307 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6309 mono_mb_emit_ldarg (mb, argnum);
6311 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6312 mono_mb_emit_ldloc (mb, conv_arg);
6313 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY));
6318 case MARSHAL_ACTION_PUSH:
6320 mono_mb_emit_ldloc_addr (mb, conv_arg);
6322 mono_mb_emit_ldloc (mb, conv_arg);
6325 case MARSHAL_ACTION_CONV_RESULT:
6326 /* fixme: we need conversions here */
6327 mono_mb_emit_stloc (mb, 3);
6330 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6332 guint32 label1, label2, label3;
6333 int index_var, src_ptr, esize, param_num, num_elem;
6334 MonoMarshalConv conv;
6335 gboolean is_string = FALSE;
6337 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6338 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6341 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6342 mono_mb_emit_exception_marshal_directive (mb, msg);
6346 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6347 mono_mb_emit_exception_marshal_directive (mb, msg);
6350 if (spec->native != MONO_NATIVE_LPARRAY) {
6351 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6352 mono_mb_emit_exception_marshal_directive (mb, msg);
6356 /* FIXME: t is from the method which is wrapped, not the delegate type */
6357 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6359 param_num = spec->data.array_data.param_num;
6360 num_elem = spec->data.array_data.num_elem;
6361 if (spec->data.array_data.elem_mult == 0)
6362 /* param_num is not specified */
6365 if (param_num == -1) {
6366 if (num_elem <= 0) {
6367 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6368 mono_mb_emit_exception_marshal_directive (mb, msg);
6373 /* FIXME: Optimize blittable case */
6375 eklass = klass->element_class;
6376 if (eklass == mono_defaults.string_class) {
6378 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6380 else if (eklass == mono_defaults.stringbuilder_class) {
6382 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6385 conv = (MonoMarshalConv)-1;
6387 mono_marshal_load_type_info (eklass);
6390 esize = sizeof (gpointer);
6392 esize = mono_class_native_size (eklass, NULL);
6393 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6395 mono_mb_emit_byte (mb, CEE_LDNULL);
6396 mono_mb_emit_stloc (mb, conv_arg);
6398 /* Check param index */
6399 if (param_num != -1) {
6400 if (param_num >= m->sig->param_count) {
6401 char *msg = g_strdup ("Array size control parameter index is out of range.");
6402 mono_mb_emit_exception_marshal_directive (mb, msg);
6405 switch (m->sig->params [param_num]->type) {
6418 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6419 mono_mb_emit_exception_marshal_directive (mb, msg);
6426 mono_mb_emit_ldarg (mb, argnum);
6427 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6429 mono_mb_emit_ldarg (mb, argnum);
6430 mono_mb_emit_stloc (mb, src_ptr);
6432 /* Create managed array */
6434 * The LPArray marshalling spec says that sometimes param_num starts
6435 * from 1, sometimes it starts from 0. But MS seems to allways start
6439 if (param_num == -1) {
6440 mono_mb_emit_icon (mb, num_elem);
6442 mono_mb_emit_ldarg (mb, param_num);
6444 mono_mb_emit_icon (mb, num_elem);
6445 mono_mb_emit_byte (mb, CEE_ADD);
6447 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6450 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6451 mono_mb_emit_stloc (mb, conv_arg);
6453 if (eklass->blittable) {
6454 mono_mb_emit_ldloc (mb, conv_arg);
6455 mono_mb_emit_byte (mb, CEE_CONV_I);
6456 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6457 mono_mb_emit_byte (mb, CEE_ADD);
6458 mono_mb_emit_ldarg (mb, argnum);
6459 mono_mb_emit_ldloc (mb, conv_arg);
6460 mono_mb_emit_byte (mb, CEE_LDLEN);
6461 mono_mb_emit_icon (mb, esize);
6462 mono_mb_emit_byte (mb, CEE_MUL);
6463 mono_mb_emit_byte (mb, CEE_PREFIX1);
6464 mono_mb_emit_byte (mb, CEE_CPBLK);
6468 /* Emit marshalling loop */
6469 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6470 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6471 mono_mb_emit_stloc (mb, index_var);
6472 label2 = mono_mb_get_label (mb);
6473 mono_mb_emit_ldloc (mb, index_var);
6474 mono_mb_emit_ldloc (mb, conv_arg);
6475 mono_mb_emit_byte (mb, CEE_LDLEN);
6476 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6478 /* Emit marshalling code */
6480 g_assert (conv != -1);
6482 mono_mb_emit_ldloc (mb, conv_arg);
6483 mono_mb_emit_ldloc (mb, index_var);
6485 mono_mb_emit_ldloc (mb, src_ptr);
6486 mono_mb_emit_byte (mb, CEE_LDIND_I);
6488 mono_mb_emit_icall (mb, conv_to_icall (conv));
6489 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6492 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6493 mono_mb_emit_exception_marshal_directive (mb, msg);
6497 mono_mb_emit_add_to_local (mb, index_var, 1);
6498 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6500 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6502 mono_mb_patch_branch (mb, label1);
6503 mono_mb_patch_branch (mb, label3);
6507 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6509 guint32 label1, label2, label3;
6510 int index_var, dest_ptr, esize, param_num, num_elem;
6511 MonoMarshalConv conv;
6512 gboolean is_string = FALSE;
6515 /* Already handled in CONV_IN */
6518 /* These are already checked in CONV_IN */
6519 g_assert (!t->byref);
6520 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6521 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6523 param_num = spec->data.array_data.param_num;
6524 num_elem = spec->data.array_data.num_elem;
6526 if (spec->data.array_data.elem_mult == 0)
6527 /* param_num is not specified */
6530 if (param_num == -1) {
6531 if (num_elem <= 0) {
6532 g_assert_not_reached ();
6536 /* FIXME: Optimize blittable case */
6538 eklass = klass->element_class;
6539 if (eklass == mono_defaults.string_class) {
6541 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6543 else if (eklass == mono_defaults.stringbuilder_class) {
6545 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6548 conv = (MonoMarshalConv)-1;
6550 mono_marshal_load_type_info (eklass);
6553 esize = sizeof (gpointer);
6555 esize = mono_class_native_size (eklass, NULL);
6557 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6560 mono_mb_emit_ldloc (mb, conv_arg);
6561 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6563 mono_mb_emit_ldarg (mb, argnum);
6564 mono_mb_emit_stloc (mb, dest_ptr);
6566 if (eklass->blittable) {
6568 mono_mb_emit_ldarg (mb, argnum);
6570 mono_mb_emit_ldloc (mb, conv_arg);
6571 mono_mb_emit_byte (mb, CEE_CONV_I);
6572 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6573 mono_mb_emit_byte (mb, CEE_ADD);
6575 mono_mb_emit_ldloc (mb, conv_arg);
6576 mono_mb_emit_byte (mb, CEE_LDLEN);
6577 mono_mb_emit_icon (mb, esize);
6578 mono_mb_emit_byte (mb, CEE_MUL);
6579 mono_mb_emit_byte (mb, CEE_PREFIX1);
6580 mono_mb_emit_byte (mb, CEE_CPBLK);
6584 /* Emit marshalling loop */
6585 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6586 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6587 mono_mb_emit_stloc (mb, index_var);
6588 label2 = mono_mb_get_label (mb);
6589 mono_mb_emit_ldloc (mb, index_var);
6590 mono_mb_emit_ldloc (mb, conv_arg);
6591 mono_mb_emit_byte (mb, CEE_LDLEN);
6592 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6594 /* Emit marshalling code */
6596 g_assert (conv != -1);
6599 mono_mb_emit_ldloc (mb, dest_ptr);
6602 mono_mb_emit_ldloc (mb, conv_arg);
6603 mono_mb_emit_ldloc (mb, index_var);
6605 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6607 mono_mb_emit_icall (mb, conv_to_icall (conv));
6608 mono_mb_emit_byte (mb, CEE_STIND_I);
6611 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6612 mono_mb_emit_exception_marshal_directive (mb, msg);
6616 mono_mb_emit_add_to_local (mb, index_var, 1);
6617 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6619 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6621 mono_mb_patch_branch (mb, label1);
6622 mono_mb_patch_branch (mb, label3);
6626 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6628 guint32 label1, label2, label3;
6629 int index_var, src, dest, esize;
6630 MonoMarshalConv conv = (MonoMarshalConv)-1;
6631 gboolean is_string = FALSE;
6633 g_assert (!t->byref);
6635 eklass = klass->element_class;
6637 mono_marshal_load_type_info (eklass);
6639 if (eklass == mono_defaults.string_class) {
6641 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6644 g_assert_not_reached ();
6648 esize = sizeof (gpointer);
6649 else if (eklass == mono_defaults.char_class)
6650 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6652 esize = mono_class_native_size (eklass, NULL);
6654 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6655 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6657 mono_mb_emit_stloc (mb, src);
6658 mono_mb_emit_ldloc (mb, src);
6659 mono_mb_emit_stloc (mb, 3);
6661 /* Check for null */
6662 mono_mb_emit_ldloc (mb, src);
6663 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6665 /* Allocate native array */
6666 mono_mb_emit_icon (mb, esize);
6667 mono_mb_emit_ldloc (mb, src);
6668 mono_mb_emit_byte (mb, CEE_LDLEN);
6670 if (eklass == mono_defaults.string_class) {
6671 /* Make the array bigger for the terminating null */
6672 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6673 mono_mb_emit_byte (mb, CEE_ADD);
6675 mono_mb_emit_byte (mb, CEE_MUL);
6676 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6677 mono_mb_emit_stloc (mb, dest);
6678 mono_mb_emit_ldloc (mb, dest);
6679 mono_mb_emit_stloc (mb, 3);
6681 /* Emit marshalling loop */
6682 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6683 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6684 mono_mb_emit_stloc (mb, index_var);
6685 label2 = mono_mb_get_label (mb);
6686 mono_mb_emit_ldloc (mb, index_var);
6687 mono_mb_emit_ldloc (mb, src);
6688 mono_mb_emit_byte (mb, CEE_LDLEN);
6689 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6691 /* Emit marshalling code */
6693 g_assert (conv != -1);
6696 mono_mb_emit_ldloc (mb, dest);
6699 mono_mb_emit_ldloc (mb, src);
6700 mono_mb_emit_ldloc (mb, index_var);
6702 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6704 mono_mb_emit_icall (mb, conv_to_icall (conv));
6705 mono_mb_emit_byte (mb, CEE_STIND_I);
6708 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6709 mono_mb_emit_exception_marshal_directive (mb, msg);
6713 mono_mb_emit_add_to_local (mb, index_var, 1);
6714 mono_mb_emit_add_to_local (mb, dest, esize);
6716 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6718 mono_mb_patch_branch (mb, label3);
6719 mono_mb_patch_branch (mb, label1);
6723 g_assert_not_reached ();
6730 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6733 return &mono_defaults.int32_class->byval_arg;
6735 switch (spec->native) {
6736 case MONO_NATIVE_I1:
6737 case MONO_NATIVE_U1:
6738 return &mono_defaults.byte_class->byval_arg;
6739 case MONO_NATIVE_VARIANTBOOL:
6740 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6741 return &mono_defaults.int16_class->byval_arg;
6742 case MONO_NATIVE_BOOLEAN:
6743 return &mono_defaults.int32_class->byval_arg;
6745 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6746 return &mono_defaults.int32_class->byval_arg;
6752 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6754 MonoClass* conv_arg_class = mono_defaults.int32_class;
6756 switch (spec->native) {
6757 case MONO_NATIVE_I1:
6758 case MONO_NATIVE_U1:
6759 conv_arg_class = mono_defaults.byte_class;
6760 if (ldop) *ldop = CEE_LDIND_I1;
6762 case MONO_NATIVE_VARIANTBOOL:
6763 conv_arg_class = mono_defaults.int16_class;
6764 if (ldop) *ldop = CEE_LDIND_I2;
6766 case MONO_NATIVE_BOOLEAN:
6769 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6772 return conv_arg_class;
6776 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6777 MonoMarshalSpec *spec,
6778 int conv_arg, MonoType **conv_arg_type,
6779 MarshalAction action)
6783 case MARSHAL_ACTION_CONV_IN:
6785 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6787 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6790 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6791 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6793 *conv_arg_type = &conv_arg_class->this_arg;
6795 *conv_arg_type = &conv_arg_class->byval_arg;
6801 MonoMethodBuilder *mb = m->mb;
6804 case MARSHAL_ACTION_CONV_IN: {
6805 MonoType *local_type;
6807 guint8 ldc_op = CEE_LDC_I4_1;
6809 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
6811 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6813 *conv_arg_type = local_type;
6814 conv_arg = mono_mb_add_local (mb, local_type);
6816 mono_mb_emit_ldarg (mb, argnum);
6818 mono_mb_emit_byte (mb, CEE_LDIND_I1);
6819 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6820 mono_mb_emit_byte (mb, ldc_op);
6821 mono_mb_emit_stloc (mb, conv_arg);
6822 mono_mb_patch_branch (mb, label_false);
6827 case MARSHAL_ACTION_CONV_OUT:
6829 int label_false, label_end;
6833 mono_mb_emit_ldarg (mb, argnum);
6834 mono_mb_emit_ldloc (mb, conv_arg);
6836 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6837 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6839 label_end = mono_mb_emit_branch (mb, CEE_BR);
6840 mono_mb_patch_branch (mb, label_false);
6841 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6842 mono_mb_patch_branch (mb, label_end);
6844 mono_mb_emit_byte (mb, CEE_STIND_I1);
6848 case MARSHAL_ACTION_PUSH:
6850 mono_mb_emit_ldloc_addr (mb, conv_arg);
6852 mono_mb_emit_ldloc (mb, conv_arg);
6854 mono_mb_emit_ldarg (mb, argnum);
6857 case MARSHAL_ACTION_CONV_RESULT:
6858 /* maybe we need to make sure that it fits within 8 bits */
6859 mono_mb_emit_stloc (mb, 3);
6862 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6863 MonoClass* conv_arg_class = mono_defaults.int32_class;
6864 guint8 ldop = CEE_LDIND_I4;
6865 int label_null, label_false;
6867 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
6868 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6871 *conv_arg_type = &conv_arg_class->this_arg;
6873 *conv_arg_type = &conv_arg_class->byval_arg;
6876 mono_mb_emit_ldarg (mb, argnum);
6880 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6881 mono_mb_emit_ldarg (mb, argnum);
6882 mono_mb_emit_byte (mb, ldop);
6886 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6887 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6888 mono_mb_emit_stloc (mb, conv_arg);
6889 mono_mb_patch_branch (mb, label_false);
6892 mono_mb_patch_branch (mb, label_null);
6896 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6897 guint8 stop = CEE_STIND_I4;
6898 guint8 ldc_op = CEE_LDC_I4_1;
6899 int label_null,label_false, label_end;;
6904 switch (spec->native) {
6905 case MONO_NATIVE_I1:
6906 case MONO_NATIVE_U1:
6907 stop = CEE_STIND_I1;
6909 case MONO_NATIVE_VARIANTBOOL:
6910 stop = CEE_STIND_I2;
6911 ldc_op = CEE_LDC_I4_M1;
6919 mono_mb_emit_ldarg (mb, argnum);
6920 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
6922 mono_mb_emit_ldarg (mb, argnum);
6923 mono_mb_emit_ldloc (mb, conv_arg);
6925 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
6926 mono_mb_emit_byte (mb, ldc_op);
6927 label_end = mono_mb_emit_branch (mb, CEE_BR);
6929 mono_mb_patch_branch (mb, label_false);
6930 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6931 mono_mb_patch_branch (mb, label_end);
6933 mono_mb_emit_byte (mb, stop);
6934 mono_mb_patch_branch (mb, label_null);
6939 g_assert_not_reached ();
6946 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
6947 MonoMarshalSpec *spec, int conv_arg,
6948 MonoType **conv_arg_type, MarshalAction action)
6951 MonoMethodBuilder *mb = m->mb;
6954 case MARSHAL_ACTION_CONV_IN:
6955 /* MS seems to allow this in some cases, ie. bxc #158 */
6957 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
6958 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
6959 mono_mb_emit_exception_marshal_directive (m->mb, msg);
6964 case MARSHAL_ACTION_PUSH:
6965 mono_mb_emit_ldarg (mb, argnum);
6968 case MARSHAL_ACTION_CONV_RESULT:
6969 /* no conversions necessary */
6970 mono_mb_emit_stloc (mb, 3);
6981 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
6982 MonoMarshalSpec *spec, int conv_arg,
6983 MonoType **conv_arg_type, MarshalAction action)
6986 MonoMethodBuilder *mb = m->mb;
6989 case MARSHAL_ACTION_PUSH:
6990 /* fixme: dont know how to marshal that. We cant simply
6991 * convert it to a one byte UTF8 character, because an
6992 * unicode character may need more that one byte in UTF8 */
6993 mono_mb_emit_ldarg (mb, argnum);
6996 case MARSHAL_ACTION_CONV_RESULT:
6997 /* fixme: we need conversions here */
6998 mono_mb_emit_stloc (mb, 3);
7009 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7010 MonoMarshalSpec *spec, int conv_arg,
7011 MonoType **conv_arg_type, MarshalAction action)
7014 MonoMethodBuilder *mb = m->mb;
7017 case MARSHAL_ACTION_PUSH:
7018 mono_mb_emit_ldarg (mb, argnum);
7021 case MARSHAL_ACTION_CONV_RESULT:
7022 /* no conversions necessary */
7023 mono_mb_emit_stloc (mb, 3);
7034 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7035 MonoMarshalSpec *spec, int conv_arg,
7036 MonoType **conv_arg_type, MarshalAction action)
7038 /* Ensure that we have marshalling info for this param */
7039 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7041 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7042 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7044 if (spec && spec->native == MONO_NATIVE_ASANY)
7045 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7048 case MONO_TYPE_VALUETYPE:
7049 if (t->data.klass == mono_defaults.handleref_class)
7050 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7052 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7053 case MONO_TYPE_STRING:
7054 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7055 case MONO_TYPE_CLASS:
7056 case MONO_TYPE_OBJECT:
7058 if (spec && spec->native == MONO_NATIVE_STRUCT)
7059 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7061 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7062 spec->native == MONO_NATIVE_IDISPATCH ||
7063 spec->native == MONO_NATIVE_INTERFACE))
7064 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7065 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7066 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7067 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7068 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7071 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7072 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7073 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7075 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7076 case MONO_TYPE_ARRAY:
7077 case MONO_TYPE_SZARRAY:
7078 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7079 case MONO_TYPE_BOOLEAN:
7080 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7082 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7083 case MONO_TYPE_CHAR:
7084 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7097 case MONO_TYPE_FNPTR:
7098 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7099 case MONO_TYPE_GENERICINST:
7100 if (mono_type_generic_inst_is_valuetype (t))
7101 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7103 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7111 * mono_marshal_emit_native_wrapper:
7112 * @image: the image to use for looking up custom marshallers
7113 * @sig: The signature of the native function
7114 * @piinfo: Marshalling information
7115 * @mspecs: Marshalling information
7116 * @aot: whenever the created method will be compiled by the AOT compiler
7117 * @method: if non-NULL, the pinvoke method to call
7118 * @check_exceptions: Whenever to check for pending exceptions after the native call
7119 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7121 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7124 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)
7126 EmitMarshalContext m;
7127 MonoMethodSignature *csig;
7129 int i, argnum, *tmp_locals;
7130 int type, param_shift = 0;
7131 static MonoMethodSignature *get_last_error_sig = NULL;
7132 int coop_gc_stack_dummy, coop_gc_var;
7134 memset (&m, 0, sizeof (m));
7139 /* we copy the signature, so that we can set pinvoke to 0 */
7141 /* The function address is passed as the first argument */
7142 g_assert (!sig->hasthis);
7145 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7153 /* we allocate local for use with emit_struct_conv() */
7154 /* allocate local 0 (pointer) src_ptr */
7155 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7156 /* allocate local 1 (pointer) dst_ptr */
7157 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7158 /* allocate local 2 (boolean) delete_old */
7159 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7161 /* delete_old = FALSE */
7162 mono_mb_emit_icon (mb, 0);
7163 mono_mb_emit_stloc (mb, 2);
7165 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7166 /* allocate local 3 to store the return value */
7167 mono_mb_add_local (mb, sig->ret);
7170 if (mono_threads_is_coop_enabled ()) {
7171 /* local 4, dummy local used to get a stack address for suspend funcs */
7172 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7173 /* local 5, the local to be used when calling the suspend funcs */
7174 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7177 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7178 /* Return type custom marshaling */
7180 * Since we can't determine the return type of the unmanaged function,
7181 * we assume it returns a pointer, and pass that pointer to
7182 * MarshalNativeToManaged.
7184 csig->ret = &mono_defaults.int_class->byval_arg;
7187 /* we first do all conversions */
7188 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7189 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7191 for (i = 0; i < sig->param_count; i ++) {
7192 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7195 /* push all arguments */
7198 mono_mb_emit_byte (mb, CEE_LDARG_0);
7200 for (i = 0; i < sig->param_count; i++) {
7201 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7204 if (mono_threads_is_coop_enabled ()) {
7205 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7206 mono_mb_emit_icall (mb, mono_threads_prepare_blocking);
7207 mono_mb_emit_stloc (mb, coop_gc_var);
7210 /* call the native method */
7212 mono_mb_emit_byte (mb, CEE_LDARG_0);
7213 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7214 mono_mb_emit_byte (mb, CEE_LDIND_I);
7215 mono_mb_emit_calli (mb, csig);
7216 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7218 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7220 g_assert_not_reached ();
7225 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7226 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7227 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7228 mono_mb_emit_calli (mb, csig);
7230 mono_mb_emit_native_call (mb, csig, func);
7234 /* Set LastError if needed */
7235 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7236 if (!get_last_error_sig) {
7237 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7238 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7239 get_last_error_sig->pinvoke = 1;
7244 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7245 * clobber its value.
7247 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7248 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7250 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7254 if (mono_threads_is_coop_enabled ()) {
7255 mono_mb_emit_ldloc (mb, coop_gc_var);
7256 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7257 mono_mb_emit_icall (mb, mono_threads_finish_blocking);
7260 /* convert the result */
7261 if (!sig->ret->byref) {
7262 MonoMarshalSpec *spec = mspecs [0];
7263 type = sig->ret->type;
7265 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7266 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7271 case MONO_TYPE_VOID:
7273 case MONO_TYPE_VALUETYPE:
7274 klass = sig->ret->data.klass;
7275 if (klass->enumtype) {
7276 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7279 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7293 case MONO_TYPE_FNPTR:
7294 case MONO_TYPE_STRING:
7295 case MONO_TYPE_CLASS:
7296 case MONO_TYPE_OBJECT:
7297 case MONO_TYPE_BOOLEAN:
7298 case MONO_TYPE_ARRAY:
7299 case MONO_TYPE_SZARRAY:
7300 case MONO_TYPE_CHAR:
7302 case MONO_TYPE_GENERICINST:
7303 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7305 case MONO_TYPE_TYPEDBYREF:
7307 g_warning ("return type 0x%02x unknown", sig->ret->type);
7308 g_assert_not_reached ();
7312 mono_mb_emit_stloc (mb, 3);
7316 * Need to call this after converting the result since MONO_VTADDR needs
7317 * to be adjacent to the call instruction.
7319 if (check_exceptions)
7320 emit_thread_interrupt_checkpoint (mb);
7322 /* we need to convert byref arguments back and free string arrays */
7323 for (i = 0; i < sig->param_count; i++) {
7324 MonoType *t = sig->params [i];
7325 MonoMarshalSpec *spec = mspecs [i + 1];
7327 argnum = i + param_shift;
7329 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7330 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7335 case MONO_TYPE_STRING:
7336 case MONO_TYPE_VALUETYPE:
7337 case MONO_TYPE_CLASS:
7338 case MONO_TYPE_OBJECT:
7339 case MONO_TYPE_SZARRAY:
7340 case MONO_TYPE_BOOLEAN:
7341 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7348 if (!MONO_TYPE_IS_VOID(sig->ret))
7349 mono_mb_emit_ldloc (mb, 3);
7351 mono_mb_emit_byte (mb, CEE_RET);
7353 #endif /* DISABLE_JIT */
7356 * mono_marshal_get_native_wrapper:
7357 * @method: The MonoMethod to wrap.
7358 * @check_exceptions: Whenever to check for pending exceptions
7360 * generates IL code for the pinvoke wrapper (the generated method
7361 * calls the unmanaged code in piinfo->addr)
7362 * The wrapper info for the wrapper is a WrapperInfo structure.
7365 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7367 MonoMethodSignature *sig, *csig;
7368 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7369 MonoMethodBuilder *mb;
7370 MonoMarshalSpec **mspecs;
7373 gboolean pinvoke = FALSE;
7376 const char *exc_class = "MissingMethodException";
7377 const char *exc_arg = NULL;
7380 g_assert (method != NULL);
7381 g_assert (mono_method_signature (method)->pinvoke);
7383 GHashTable **cache_ptr;
7386 if (check_exceptions)
7387 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7389 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7391 if (check_exceptions)
7392 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7394 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7397 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7399 if ((res = mono_marshal_find_in_cache (cache, method)))
7402 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7403 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7407 return mono_cominterop_get_native_wrapper (method);
7409 g_assert_not_reached ();
7413 sig = mono_method_signature (method);
7415 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7416 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7419 if (!piinfo->addr) {
7421 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7422 exc_arg = "Method contains unsupported native code";
7424 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7426 piinfo->addr = mono_lookup_internal_call (method);
7430 /* hack - redirect certain string constructors to CreateString */
7431 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7432 g_assert (!pinvoke);
7433 g_assert (method->string_ctor);
7434 g_assert (sig->hasthis);
7436 /* CreateString returns a value */
7437 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7438 csig->ret = &mono_defaults.string_class->byval_arg;
7442 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7443 if (!strcmp ("CreateString", res->name) &&
7444 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7447 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7448 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7450 /* create a wrapper to preserve .ctor in stack trace */
7451 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7454 mono_mb_emit_byte (mb, CEE_LDARG_0);
7455 for (i = 1; i <= csig->param_count; i++)
7456 mono_mb_emit_ldarg (mb, i);
7457 mono_mb_emit_managed_call (mb, res, NULL);
7458 mono_mb_emit_byte (mb, CEE_RET);
7461 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7462 info->d.string_ctor.method = method;
7464 /* use native_wrapper_cache because internal calls are looked up there */
7465 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7466 csig->param_count + 1, info, NULL);
7473 /* exception will be thrown */
7474 piinfo->addr = NULL;
7475 g_warning ("cannot find CreateString for .ctor");
7478 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7480 mb->method->save_lmf = 1;
7483 * In AOT mode and embedding scenarios, it is possible that the icall is not
7484 * registered in the runtime doing the AOT compilation.
7486 if (!piinfo->addr && !aot) {
7488 mono_mb_emit_exception (mb, exc_class, exc_arg);
7490 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7491 info->d.managed_to_native.method = method;
7493 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7495 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7496 csig->param_count + 16, info, NULL);
7502 /* internal calls: we simply push all arguments and call the method (no conversions) */
7503 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7505 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7507 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7509 /* hack - string constructors returns a value */
7510 if (method->string_ctor)
7511 csig->ret = &mono_defaults.string_class->byval_arg;
7518 * Add a null check since public icalls can be called with 'call' which
7519 * does no such check.
7521 mono_mb_emit_byte (mb, CEE_LDARG_0);
7522 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7523 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7524 mono_mb_patch_branch (mb, pos);
7526 mono_mb_emit_byte (mb, CEE_LDARG_0);
7529 for (i = 0; i < sig->param_count; i++)
7530 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7533 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7534 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7535 mono_mb_emit_calli (mb, csig);
7537 g_assert (piinfo->addr);
7538 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7540 if (check_exceptions)
7541 emit_thread_interrupt_checkpoint (mb);
7542 mono_mb_emit_byte (mb, CEE_RET);
7544 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7545 info->d.managed_to_native.method = method;
7547 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7549 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7558 g_assert (piinfo->addr);
7561 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7562 mono_method_get_marshal_info (method, mspecs);
7564 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7566 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7567 info->d.managed_to_native.method = method;
7569 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7571 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7576 for (i = sig->param_count; i >= 0; i--)
7578 mono_metadata_free_marshal_spec (mspecs [i]);
7582 /* mono_method_print_code (res); */
7588 * mono_marshal_get_native_func_wrapper:
7589 * @image: The image to use for memory allocation and for looking up custom marshallers.
7590 * @sig: The signature of the function
7591 * @func: The native function to wrap
7593 * Returns a wrapper method around native functions, similar to the pinvoke
7597 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7598 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7600 MonoMethodSignature *csig;
7602 SignaturePointerPair key, *new_key;
7603 MonoMethodBuilder *mb;
7612 // Generic types are not safe to place in MonoImage caches.
7613 g_assert (!sig->is_inflated);
7615 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7616 if ((res = mono_marshal_find_in_cache (cache, &key)))
7619 name = g_strdup_printf ("wrapper_native_%p", func);
7620 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7621 mb->method->save_lmf = 1;
7624 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7627 csig = mono_metadata_signature_dup_full (image, sig);
7630 new_key = g_new (SignaturePointerPair,1);
7631 new_key->sig = csig;
7632 new_key->pointer = func;
7634 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7640 mono_marshal_set_wrapper_info (res, NULL);
7646 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7650 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7652 MonoMethodSignature *sig, *csig;
7653 MonoMethodBuilder *mb;
7658 MonoMethodPInvoke mpiinfo;
7659 MonoMethodPInvoke *piinfo = &mpiinfo;
7660 MonoMarshalSpec **mspecs;
7661 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7662 MonoImage *image = invoke->klass->image;
7665 // FIXME: include UnmanagedFunctionPointerAttribute info
7668 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7670 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7672 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7675 memset (&mpiinfo, 0, sizeof (mpiinfo));
7676 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7678 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7679 mono_method_get_marshal_info (invoke, mspecs);
7680 /* Freed below so don't alloc from mempool */
7681 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7684 name = g_strdup_printf ("wrapper_aot_native");
7685 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7686 mb->method->save_lmf = 1;
7689 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7692 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7693 info->d.managed_to_native.method = invoke;
7695 g_assert (!sig->hasthis);
7696 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7698 res = mono_mb_create_and_cache_full (cache, invoke,
7699 mb, csig, csig->param_count + 16,
7703 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7705 mono_metadata_free_marshal_spec (mspecs [i]);
7713 * mono_marshal_emit_managed_wrapper:
7715 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7716 * the delegate which wraps the managed method to be called. For closed delegates,
7717 * it could have fewer parameters than the method it wraps.
7718 * THIS_LOC is the memory location where the target of the delegate is stored.
7721 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7724 MonoMethodSignature *sig, *csig;
7730 /* we first do all conversions */
7731 for (i = 0; i < sig->param_count; i ++) {
7732 MonoType *t = sig->params [i];
7735 case MONO_TYPE_OBJECT:
7736 case MONO_TYPE_CLASS:
7737 case MONO_TYPE_VALUETYPE:
7738 case MONO_TYPE_ARRAY:
7739 case MONO_TYPE_SZARRAY:
7740 case MONO_TYPE_STRING:
7741 case MONO_TYPE_BOOLEAN:
7742 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7746 if (!sig->ret->byref) {
7747 switch (sig->ret->type) {
7748 case MONO_TYPE_STRING:
7749 csig->ret = &mono_defaults.int_class->byval_arg;
7756 MonoMethodSignature *sig, *csig;
7757 MonoExceptionClause *clause;
7760 gboolean closed = FALSE;
7765 /* allocate local 0 (pointer) src_ptr */
7766 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7767 /* allocate local 1 (pointer) dst_ptr */
7768 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7769 /* allocate local 2 (boolean) delete_old */
7770 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7772 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
7773 /* Closed delegate */
7774 g_assert (sig->param_count == invoke_sig->param_count + 1);
7776 /* Use a new signature without the first argument */
7777 sig = mono_metadata_signature_dup (sig);
7778 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
7779 sig->param_count --;
7782 if (!MONO_TYPE_IS_VOID(sig->ret)) {
7783 /* allocate local 3 to store the return value */
7784 mono_mb_add_local (mb, sig->ret);
7789 * mono_jit_attach ();
7793 * ret = method (...);
7795 * mono_jit_detach ();
7801 if (mono_threads_is_coop_enabled ()) {
7802 clause = g_new0 (MonoExceptionClause, 1);
7803 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
7806 mono_mb_emit_icon (mb, 0);
7807 mono_mb_emit_stloc (mb, 2);
7809 if (mono_threads_is_coop_enabled ()) {
7811 clause->try_offset = mono_mb_get_label (mb);
7815 * Might need to attach the thread to the JIT or change the
7816 * domain for the callback.
7818 * Also does the (STARTING|BLOCKING|RUNNING) -> RUNNING thread state transtion
7820 * mono_jit_attach ();
7822 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7823 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
7825 /* <interrupt check> */
7826 emit_thread_interrupt_checkpoint (mb);
7828 /* we first do all conversions */
7829 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7830 for (i = 0; i < sig->param_count; i ++) {
7831 MonoType *t = sig->params [i];
7834 case MONO_TYPE_OBJECT:
7835 case MONO_TYPE_CLASS:
7836 case MONO_TYPE_VALUETYPE:
7837 case MONO_TYPE_ARRAY:
7838 case MONO_TYPE_SZARRAY:
7839 case MONO_TYPE_STRING:
7840 case MONO_TYPE_BOOLEAN:
7841 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7851 if (target_handle) {
7852 mono_mb_emit_icon (mb, (gint32)target_handle);
7853 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7856 g_assert_not_reached ();
7858 } else if (closed) {
7859 mono_mb_emit_icon (mb, (gint32)target_handle);
7860 mono_mb_emit_icall (mb, mono_gchandle_get_target);
7863 for (i = 0; i < sig->param_count; i++) {
7864 MonoType *t = sig->params [i];
7866 if (tmp_locals [i]) {
7868 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
7870 mono_mb_emit_ldloc (mb, tmp_locals [i]);
7873 mono_mb_emit_ldarg (mb, i);
7876 /* ret = method (...) */
7877 mono_mb_emit_managed_call (mb, method, NULL);
7879 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7880 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7881 } else if (!sig->ret->byref) {
7882 switch (sig->ret->type) {
7883 case MONO_TYPE_VOID:
7885 case MONO_TYPE_BOOLEAN:
7888 case MONO_TYPE_CHAR:
7900 case MONO_TYPE_OBJECT:
7901 mono_mb_emit_stloc (mb, 3);
7903 case MONO_TYPE_STRING:
7904 csig->ret = &mono_defaults.int_class->byval_arg;
7905 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7907 case MONO_TYPE_VALUETYPE:
7908 case MONO_TYPE_CLASS:
7909 case MONO_TYPE_SZARRAY:
7910 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
7913 g_warning ("return type 0x%02x unknown", sig->ret->type);
7914 g_assert_not_reached ();
7917 mono_mb_emit_stloc (mb, 3);
7920 /* Convert byref arguments back */
7921 for (i = 0; i < sig->param_count; i ++) {
7922 MonoType *t = sig->params [i];
7923 MonoMarshalSpec *spec = mspecs [i + 1];
7925 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7926 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7928 else if (t->byref) {
7930 case MONO_TYPE_CLASS:
7931 case MONO_TYPE_VALUETYPE:
7932 case MONO_TYPE_OBJECT:
7933 case MONO_TYPE_STRING:
7934 case MONO_TYPE_BOOLEAN:
7935 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7941 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
7942 /* The [Out] information is encoded in the delegate signature */
7944 case MONO_TYPE_SZARRAY:
7945 case MONO_TYPE_CLASS:
7946 case MONO_TYPE_VALUETYPE:
7947 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
7950 g_assert_not_reached ();
7955 if (mono_threads_is_coop_enabled ()) {
7956 leave_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
7959 clause->try_len = mono_mb_get_label (mb) - clause->try_offset;
7960 clause->handler_offset = mono_mb_get_label (mb);
7964 * Also does the RUNNING -> (BLOCKING|RUNNING) thread state transition
7966 * mono_jit_detach ();
7968 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7969 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
7971 if (mono_threads_is_coop_enabled ()) {
7972 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
7974 /* } [endfinally] */
7975 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
7977 mono_mb_patch_branch (mb, leave_pos);
7981 if (m->retobj_var) {
7982 mono_mb_emit_ldloc (mb, m->retobj_var);
7983 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7984 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
7987 if (!MONO_TYPE_IS_VOID(sig->ret))
7988 mono_mb_emit_ldloc (mb, 3);
7989 mono_mb_emit_byte (mb, CEE_RET);
7992 if (mono_threads_is_coop_enabled ()) {
7993 mono_mb_set_clauses (mb, 1, clause);
8002 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8004 MonoMethodSignature *sig;
8009 * Under windows, delegates passed to native code must use the STDCALL
8010 * calling convention.
8012 csig->call_convention = MONO_CALL_STDCALL;
8015 sig = mono_method_signature (method);
8017 /* Change default calling convention if needed */
8018 /* Why is this a modopt ? */
8019 if (sig->ret && sig->ret->num_mods) {
8020 for (i = 0; i < sig->ret->num_mods; ++i) {
8022 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8023 g_assert (mono_error_ok (&error));
8024 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8025 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8026 csig->call_convention = MONO_CALL_C;
8027 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8028 csig->call_convention = MONO_CALL_STDCALL;
8029 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8030 csig->call_convention = MONO_CALL_FASTCALL;
8031 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8032 csig->call_convention = MONO_CALL_THISCALL;
8039 * generates IL code to call managed methods from unmanaged code
8040 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8043 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8045 MonoMethodSignature *sig, *csig, *invoke_sig;
8046 MonoMethodBuilder *mb;
8047 MonoMethod *res, *invoke;
8048 MonoMarshalSpec **mspecs;
8049 MonoMethodPInvoke piinfo;
8052 EmitMarshalContext m;
8054 g_assert (method != NULL);
8055 g_assert (!mono_method_signature (method)->pinvoke);
8058 * FIXME: Should cache the method+delegate type pair, since the same method
8059 * could be called with different delegates, thus different marshalling
8062 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8064 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8067 invoke = mono_get_delegate_invoke (delegate_klass);
8068 invoke_sig = mono_method_signature (invoke);
8070 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8071 mono_method_get_marshal_info (invoke, mspecs);
8073 sig = mono_method_signature (method);
8075 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8077 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8078 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8080 /* we copy the signature, so that we can modify it */
8082 /* Need to free this later */
8083 csig = mono_metadata_signature_dup (invoke_sig);
8085 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8089 memset (&m, 0, sizeof (m));
8095 m.image = method->klass->image;
8097 mono_marshal_set_callconv_from_modopt (invoke, csig);
8099 /* The attribute is only available in Net 2.0 */
8100 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8101 MonoCustomAttrInfo *cinfo;
8102 MonoCustomAttrEntry *attr;
8105 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8106 * contents of the attribute without constructing it, as that might not be
8107 * possible when running in cross-compiling mode.
8109 cinfo = mono_custom_attrs_from_class (delegate_klass);
8112 for (i = 0; i < cinfo->num_attrs; ++i) {
8113 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8114 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8115 attr = &cinfo->attrs [i];
8121 MonoArray *typed_args, *named_args;
8122 CattrNamedArg *arginfo;
8126 MonoBoolean set_last_error = 0;
8129 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8130 g_assert (mono_error_ok (&error));
8131 g_assert (mono_array_length (typed_args) == 1);
8134 o = mono_array_get (typed_args, MonoObject*, 0);
8135 call_conv = *(gint32*)mono_object_unbox (o);
8138 for (i = 0; i < mono_array_length (named_args); ++i) {
8139 CattrNamedArg *narg = &arginfo [i];
8141 o = mono_array_get (named_args, MonoObject*, i);
8143 g_assert (narg->field);
8144 if (!strcmp (narg->field->name, "CharSet")) {
8145 charset = *(gint32*)mono_object_unbox (o);
8146 } else if (!strcmp (narg->field->name, "SetLastError")) {
8147 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8148 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8149 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8150 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8151 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8153 g_assert_not_reached ();
8159 memset (&piinfo, 0, sizeof (piinfo));
8161 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8163 csig->call_convention = call_conv - 1;
8166 if (cinfo && !cinfo->cached)
8167 mono_custom_attrs_free (cinfo);
8170 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8172 if (!target_handle) {
8175 // FIXME: Associate it with the method+delegate_klass pair
8176 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8177 info->d.native_to_managed.method = method;
8178 info->d.native_to_managed.klass = delegate_klass;
8180 res = mono_mb_create_and_cache_full (cache, method,
8181 mb, csig, sig->param_count + 16,
8187 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8191 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8193 mono_metadata_free_marshal_spec (mspecs [i]);
8196 /* mono_method_print_code (res); */
8202 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8206 MonoMethodSignature *sig;
8207 MonoMethodBuilder *mb;
8212 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8214 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8217 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8218 MonoMethodSignature *csig;
8219 MonoMarshalSpec **mspecs;
8220 EmitMarshalContext m;
8222 sig = mono_method_signature (method);
8223 g_assert (!sig->hasthis);
8225 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8226 mono_method_get_marshal_info (method, mspecs);
8228 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8229 csig = mono_metadata_signature_dup_full (image, sig);
8233 memset (&m, 0, sizeof (m));
8241 mono_marshal_set_callconv_from_modopt (method, csig);
8243 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8245 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8250 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8253 for (i = sig->param_count; i >= 0; i--)
8255 mono_metadata_free_marshal_spec (mspecs [i]);
8258 return mono_compile_method (method);
8261 sig = mono_method_signature (method);
8262 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8264 param_count = sig->param_count + sig->hasthis;
8266 for (i = 0; i < param_count; i++)
8267 mono_mb_emit_ldarg (mb, i);
8269 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8270 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8272 mono_mb_emit_op (mb, CEE_CALL, method);
8273 mono_mb_emit_byte (mb, CEE_RET);
8278 method = mono_mb_create (mb, sig, param_count, NULL);
8281 return mono_compile_method (method);
8287 * The code directly following this is the cache hit, value positive branch
8289 * This function takes a new method builder with 0 locals and adds two locals
8290 * to create multiple out-branches and the fall through state of having the object
8291 * on the stack after a cache miss
8294 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8295 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8296 MonoMethodBuilder *mb)
8300 /* allocate local 0 (pointer) obj_vtable */
8301 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8302 /* allocate local 1 (pointer) cached_vtable */
8303 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8306 mono_mb_emit_ldarg (mb, obj_arg_position);
8307 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8309 /*obj_vtable = obj->vtable;*/
8310 mono_mb_emit_ldarg (mb, obj_arg_position);
8311 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8312 mono_mb_emit_byte (mb, CEE_LDIND_I);
8313 mono_mb_emit_stloc (mb, 0);
8315 /* cached_vtable = *cache*/
8316 mono_mb_emit_ldarg (mb, cache_arg_position);
8317 mono_mb_emit_byte (mb, CEE_LDIND_I);
8318 mono_mb_emit_stloc (mb, 1);
8320 mono_mb_emit_ldloc (mb, 1);
8321 mono_mb_emit_byte (mb, CEE_LDC_I4);
8322 mono_mb_emit_i4 (mb, ~0x1);
8323 mono_mb_emit_byte (mb, CEE_CONV_I);
8324 mono_mb_emit_byte (mb, CEE_AND);
8325 mono_mb_emit_ldloc (mb, 0);
8326 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8327 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8329 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8330 mono_mb_emit_ldloc (mb, 1);
8331 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8332 mono_mb_emit_byte (mb, CEE_CONV_U);
8333 mono_mb_emit_byte (mb, CEE_AND);
8334 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8335 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8338 mono_mb_patch_branch (mb, cache_miss_pos);
8341 mono_mb_emit_ldarg (mb, obj_arg_position);
8342 mono_mb_emit_ldarg (mb, class_arg_position);
8343 mono_mb_emit_ldarg (mb, cache_arg_position);
8344 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8347 #endif /* DISABLE_JIT */
8350 * This does the equivalent of mono_object_castclass_with_cache.
8351 * The wrapper info for the wrapper is a WrapperInfo structure.
8354 mono_marshal_get_castclass_with_cache (void)
8356 static MonoMethod *cached;
8358 MonoMethodBuilder *mb;
8359 MonoMethodSignature *sig;
8360 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8363 const int obj_arg_position = 0;
8364 const int class_arg_position = 1;
8365 const int cache_arg_position = 2;
8370 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8371 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8372 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8373 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8374 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8375 sig->ret = &mono_defaults.object_class->byval_arg;
8379 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8380 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8381 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8384 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8385 mono_mb_emit_ldarg (mb, obj_arg_position);
8386 mono_mb_emit_byte (mb, CEE_RET);
8389 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8390 mono_mb_patch_branch (mb, invalid_cast_pos);
8391 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8394 mono_mb_patch_branch (mb, return_null_pos);
8395 mono_mb_emit_byte (mb, CEE_LDNULL);
8396 mono_mb_emit_byte (mb, CEE_RET);
8397 #endif /* DISABLE_JIT */
8399 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8400 res = mono_mb_create (mb, sig, 8, info);
8403 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8404 mono_free_method (res);
8405 mono_metadata_free_method_signature (sig);
8413 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8415 MonoObject *isinst = mono_object_isinst (obj, klass);
8417 #ifndef DISABLE_REMOTING
8418 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8422 uintptr_t cache_update = (uintptr_t)obj->vtable;
8424 cache_update = cache_update | 0x1;
8426 *cache = cache_update;
8432 * This does the equivalent of mono_object_isinst_with_cache.
8433 * The wrapper info for the wrapper is a WrapperInfo structure.
8436 mono_marshal_get_isinst_with_cache (void)
8438 static MonoMethod *cached;
8440 MonoMethodBuilder *mb;
8441 MonoMethodSignature *sig;
8442 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8445 const int obj_arg_position = 0;
8446 const int class_arg_position = 1;
8447 const int cache_arg_position = 2;
8452 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8453 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8455 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8457 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8459 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8460 sig->ret = &mono_defaults.object_class->byval_arg;
8464 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8465 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8466 // Return the object gotten via the slow path.
8467 mono_mb_emit_byte (mb, CEE_RET);
8470 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8471 mono_mb_patch_branch (mb, return_null_pos);
8472 mono_mb_emit_byte (mb, CEE_LDNULL);
8473 mono_mb_emit_byte (mb, CEE_RET);
8476 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8477 mono_mb_emit_ldarg (mb, 0);
8478 mono_mb_emit_byte (mb, CEE_RET);
8481 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8482 res = mono_mb_create (mb, sig, 8, info);
8485 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8486 mono_free_method (res);
8487 mono_metadata_free_method_signature (sig);
8495 * mono_marshal_get_isinst:
8496 * @klass: the type of the field
8498 * This method generates a function which can be used to check if an object is
8499 * an instance of the given type, icluding the case where the object is a proxy.
8500 * The generated function has the following signature:
8501 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8504 mono_marshal_get_isinst (MonoClass *klass)
8506 static MonoMethodSignature *isint_sig = NULL;
8510 int pos_was_ok, pos_end;
8511 #ifndef DISABLE_REMOTING
8512 int pos_end2, pos_failed;
8515 MonoMethodBuilder *mb;
8517 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8518 if ((res = mono_marshal_find_in_cache (cache, klass)))
8522 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8523 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8524 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8525 isint_sig->pinvoke = 0;
8528 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8529 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8532 mb->method->save_lmf = 1;
8535 /* check if the object is a proxy that needs special cast */
8536 mono_mb_emit_ldarg (mb, 0);
8537 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8538 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8540 /* The result of MONO_CISINST can be:
8541 0) the type check succeeded
8542 1) the type check did not succeed
8543 2) a CanCastTo call is needed */
8544 #ifndef DISABLE_REMOTING
8545 mono_mb_emit_byte (mb, CEE_DUP);
8546 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8548 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8549 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8551 /* get the real proxy from the transparent proxy*/
8553 mono_mb_emit_ldarg (mb, 0);
8554 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8555 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8559 mono_mb_patch_branch (mb, pos_failed);
8560 mono_mb_emit_byte (mb, CEE_LDNULL);
8561 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8565 mono_mb_patch_branch (mb, pos_was_ok);
8566 mono_mb_emit_byte (mb, CEE_POP);
8567 mono_mb_emit_ldarg (mb, 0);
8571 mono_mb_patch_branch (mb, pos_end);
8572 mono_mb_patch_branch (mb, pos_end2);
8573 mono_mb_emit_byte (mb, CEE_RET);
8575 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8579 mono_mb_emit_byte (mb, CEE_LDNULL);
8580 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8584 mono_mb_patch_branch (mb, pos_was_ok);
8585 mono_mb_emit_ldarg (mb, 0);
8589 mono_mb_patch_branch (mb, pos_end);
8590 mono_mb_emit_byte (mb, CEE_RET);
8591 #endif /* DISABLE_REMOTING */
8592 #endif /* DISABLE_JIT */
8594 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8595 info->d.proxy.klass = klass;
8596 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8603 * mono_marshal_get_castclass:
8604 * @klass: the type of the field
8606 * This method generates a function which can be used to cast an object to
8607 * an instance of the given type, icluding the case where the object is a proxy.
8608 * The generated function has the following signature:
8609 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8610 * The wrapper info for the wrapper is a WrapperInfo structure.
8613 mono_marshal_get_castclass (MonoClass *klass)
8615 static MonoMethodSignature *castclass_sig = NULL;
8618 #ifndef DISABLE_REMOTING
8619 int pos_was_ok, pos_was_ok2;
8622 MonoMethodBuilder *mb;
8625 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8626 if ((res = mono_marshal_find_in_cache (cache, klass)))
8629 if (!castclass_sig) {
8630 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8631 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8632 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8633 castclass_sig->pinvoke = 0;
8636 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8637 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8640 mb->method->save_lmf = 1;
8643 /* check if the object is a proxy that needs special cast */
8644 mono_mb_emit_ldarg (mb, 0);
8645 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8646 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8648 /* The result of MONO_CCASTCLASS can be:
8649 0) the cast is valid
8650 1) cast of unknown proxy type
8651 or an exception if the cast is is invalid
8653 #ifndef DISABLE_REMOTING
8654 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8656 /* get the real proxy from the transparent proxy*/
8658 mono_mb_emit_ldarg (mb, 0);
8659 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8660 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8663 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8666 mono_mb_patch_branch (mb, pos_was_ok);
8667 mono_mb_patch_branch (mb, pos_was_ok2);
8669 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8670 mono_mb_emit_byte (mb, CEE_POP);
8671 #endif /* DISABLE_REMOTING */
8673 mono_mb_emit_ldarg (mb, 0);
8676 mono_mb_emit_byte (mb, CEE_RET);
8677 #endif /* DISABLE_JIT */
8679 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8681 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8689 * mono_marshal_get_struct_to_ptr:
8692 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8693 * The wrapper info for the wrapper is a WrapperInfo structure.
8696 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8698 MonoMethodBuilder *mb;
8699 static MonoMethod *stoptr = NULL;
8703 g_assert (klass != NULL);
8705 mono_marshal_load_type_info (klass);
8707 if (klass->marshal_info->str_to_ptr)
8708 return klass->marshal_info->str_to_ptr;
8711 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
8714 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
8717 if (klass->blittable) {
8718 mono_mb_emit_byte (mb, CEE_LDARG_1);
8719 mono_mb_emit_byte (mb, CEE_LDARG_0);
8720 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8721 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8722 mono_mb_emit_byte (mb, CEE_PREFIX1);
8723 mono_mb_emit_byte (mb, CEE_CPBLK);
8726 /* allocate local 0 (pointer) src_ptr */
8727 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8728 /* allocate local 1 (pointer) dst_ptr */
8729 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8730 /* allocate local 2 (boolean) delete_old */
8731 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8732 mono_mb_emit_byte (mb, CEE_LDARG_2);
8733 mono_mb_emit_stloc (mb, 2);
8735 /* initialize src_ptr to point to the start of object data */
8736 mono_mb_emit_byte (mb, CEE_LDARG_0);
8737 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8738 mono_mb_emit_stloc (mb, 0);
8740 /* initialize dst_ptr */
8741 mono_mb_emit_byte (mb, CEE_LDARG_1);
8742 mono_mb_emit_stloc (mb, 1);
8744 emit_struct_conv (mb, klass, FALSE);
8747 mono_mb_emit_byte (mb, CEE_RET);
8749 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
8750 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
8753 mono_marshal_lock ();
8754 if (!klass->marshal_info->str_to_ptr)
8755 klass->marshal_info->str_to_ptr = res;
8757 res = klass->marshal_info->str_to_ptr;
8758 mono_marshal_unlock ();
8763 * mono_marshal_get_ptr_to_struct:
8766 * generates IL code for PtrToStructure (IntPtr src, object structure)
8767 * The wrapper info for the wrapper is a WrapperInfo structure.
8770 mono_marshal_get_ptr_to_struct (MonoClass *klass)
8772 MonoMethodBuilder *mb;
8773 static MonoMethodSignature *ptostr = NULL;
8777 g_assert (klass != NULL);
8779 mono_marshal_load_type_info (klass);
8781 if (klass->marshal_info->ptr_to_str)
8782 return klass->marshal_info->ptr_to_str;
8785 MonoMethodSignature *sig;
8787 /* Create the signature corresponding to
8788 static void PtrToStructure (IntPtr ptr, object structure);
8789 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
8790 sig = mono_create_icall_signature ("void ptr object");
8791 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
8793 mono_memory_barrier ();
8797 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
8800 if (klass->blittable) {
8801 mono_mb_emit_byte (mb, CEE_LDARG_1);
8802 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
8803 mono_mb_emit_byte (mb, CEE_LDARG_0);
8804 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
8805 mono_mb_emit_byte (mb, CEE_PREFIX1);
8806 mono_mb_emit_byte (mb, CEE_CPBLK);
8809 /* allocate local 0 (pointer) src_ptr */
8810 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8811 /* allocate local 1 (pointer) dst_ptr */
8812 mono_mb_add_local (mb, &klass->this_arg);
8814 /* initialize src_ptr to point to the start of object data */
8815 mono_mb_emit_byte (mb, CEE_LDARG_0);
8816 mono_mb_emit_stloc (mb, 0);
8818 /* initialize dst_ptr */
8819 mono_mb_emit_byte (mb, CEE_LDARG_1);
8820 mono_mb_emit_op (mb, CEE_UNBOX, klass);
8821 mono_mb_emit_stloc (mb, 1);
8823 emit_struct_conv (mb, klass, TRUE);
8826 mono_mb_emit_byte (mb, CEE_RET);
8828 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
8829 res = mono_mb_create (mb, ptostr, 0, info);
8832 mono_marshal_lock ();
8833 if (!klass->marshal_info->ptr_to_str)
8834 klass->marshal_info->ptr_to_str = res;
8836 res = klass->marshal_info->ptr_to_str;
8837 mono_marshal_unlock ();
8842 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
8843 * This is used to avoid infinite recursion since it is hard to determine where to
8844 * replace a method with its synchronized wrapper, and where not.
8845 * The runtime should execute METHOD instead of the wrapper.
8846 * The wrapper info for the wrapper is a WrapperInfo structure.
8849 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
8851 MonoMethodBuilder *mb;
8853 MonoMethodSignature *sig;
8855 MonoGenericContext *ctx = NULL;
8856 MonoGenericContainer *container = NULL;
8858 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8859 ctx = &((MonoMethodInflated*)method)->context;
8860 method = ((MonoMethodInflated*)method)->declaring;
8861 container = mono_method_get_generic_container (method);
8863 container = method->klass->generic_container;
8864 g_assert (container);
8867 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
8869 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
8870 mono_mb_emit_byte (mb, CEE_RET);
8872 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8874 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
8875 info->d.synchronized_inner.method = method;
8876 res = mono_mb_create (mb, sig, 0, info);
8880 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
8881 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8887 * generates IL code for the synchronized wrapper: the generated method
8888 * calls METHOD while locking 'this' or the parent type.
8891 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
8893 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
8894 MonoMethodSignature *sig;
8895 MonoExceptionClause *clause;
8896 MonoMethodBuilder *mb;
8900 int i, pos, pos2, this_local, taken_local, ret_local = 0;
8901 MonoGenericContext *ctx = NULL;
8902 MonoMethod *orig_method = NULL;
8903 MonoGenericContainer *container = NULL;
8907 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
8910 /* FIXME: Support generic methods too */
8911 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
8912 orig_method = method;
8913 ctx = &((MonoMethodInflated*)method)->context;
8914 method = ((MonoMethodInflated*)method)->declaring;
8915 container = mono_method_get_generic_container (method);
8917 container = method->klass->generic_container;
8918 g_assert (container);
8925 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8926 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
8930 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
8931 if ((res = mono_marshal_find_in_cache (cache, method)))
8935 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
8938 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
8940 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8941 info->d.synchronized.method = method;
8944 mb->skip_visibility = 1;
8946 if (!MONO_TYPE_IS_VOID (sig->ret))
8947 ret_local = mono_mb_add_local (mb, sig->ret);
8950 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
8951 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
8953 /* This will throw the type load exception when the wrapper is compiled */
8954 mono_mb_emit_byte (mb, CEE_LDNULL);
8955 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
8956 mono_mb_emit_byte (mb, CEE_POP);
8958 if (!MONO_TYPE_IS_VOID (sig->ret))
8959 mono_mb_emit_ldloc (mb, ret_local);
8960 mono_mb_emit_byte (mb, CEE_RET);
8963 res = mono_mb_create_and_cache_full (cache, method,
8964 mb, sig, sig->param_count + 16, info, NULL);
8972 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
8973 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8975 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
8976 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8979 mono_marshal_lock ();
8981 if (!enter_method) {
8982 MonoMethodDesc *desc;
8984 desc = mono_method_desc_new ("Monitor:enter_with_atomic_var(object,bool&)", FALSE);
8985 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8986 g_assert (enter_method);
8987 mono_method_desc_free (desc);
8989 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
8990 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
8991 g_assert (exit_method);
8992 mono_method_desc_free (desc);
8994 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
8995 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
8996 g_assert (gettypefromhandle_method);
8997 mono_method_desc_free (desc);
9000 mono_marshal_unlock ();
9003 /* Push this or the type object */
9004 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9005 /* We have special handling for this in the JIT */
9006 int index = mono_mb_add_data (mb, method->klass);
9007 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9008 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9009 mono_mb_emit_i4 (mb, index);
9011 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9014 mono_mb_emit_ldarg (mb, 0);
9015 mono_mb_emit_stloc (mb, this_local);
9017 /* Call Monitor::Enter() */
9018 mono_mb_emit_ldloc (mb, this_local);
9019 mono_mb_emit_ldloc_addr (mb, taken_local);
9020 mono_mb_emit_managed_call (mb, enter_method, NULL);
9022 clause->try_offset = mono_mb_get_label (mb);
9024 /* Call the method */
9026 mono_mb_emit_ldarg (mb, 0);
9027 for (i = 0; i < sig->param_count; i++)
9028 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9032 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9033 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9035 mono_mb_emit_managed_call (mb, method, NULL);
9038 if (!MONO_TYPE_IS_VOID (sig->ret))
9039 mono_mb_emit_stloc (mb, ret_local);
9041 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9043 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9044 clause->handler_offset = mono_mb_get_label (mb);
9046 /* Call Monitor::Exit() if needed */
9047 mono_mb_emit_ldloc (mb, taken_local);
9048 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9049 mono_mb_emit_ldloc (mb, this_local);
9050 mono_mb_emit_managed_call (mb, exit_method, NULL);
9051 mono_mb_patch_branch (mb, pos2);
9052 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9054 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9056 mono_mb_patch_branch (mb, pos);
9057 if (!MONO_TYPE_IS_VOID (sig->ret))
9058 mono_mb_emit_ldloc (mb, ret_local);
9059 mono_mb_emit_byte (mb, CEE_RET);
9061 mono_mb_set_clauses (mb, 1, clause);
9066 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9067 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9069 res = mono_mb_create_and_cache_full (cache, method,
9070 mb, sig, sig->param_count + 16, info, NULL);
9079 * the returned method calls 'method' unboxing the this argument
9082 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9084 MonoMethodSignature *sig = mono_method_signature (method);
9086 MonoMethodBuilder *mb;
9091 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9093 if ((res = mono_marshal_find_in_cache (cache, method)))
9096 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9098 g_assert (sig->hasthis);
9101 mono_mb_emit_ldarg (mb, 0);
9102 mono_mb_emit_icon (mb, sizeof (MonoObject));
9103 mono_mb_emit_byte (mb, CEE_ADD);
9104 for (i = 0; i < sig->param_count; ++i)
9105 mono_mb_emit_ldarg (mb, i + 1);
9106 mono_mb_emit_managed_call (mb, method, NULL);
9107 mono_mb_emit_byte (mb, CEE_RET);
9110 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9111 info->d.unbox.method = method;
9113 res = mono_mb_create_and_cache_full (cache, method,
9114 mb, sig, sig->param_count + 16, info, NULL);
9117 /* mono_method_print_code (res); */
9123 STELEMREF_OBJECT, /*no check at all*/
9124 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9125 STELEMREF_CLASS, /*only the klass->parents check*/
9126 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9127 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9128 STELEMREF_KIND_COUNT
9131 static const char *strelemref_wrapper_name[] = {
9132 "object", "sealed_class", "class", "interface", "complex"
9136 is_monomorphic_array (MonoClass *klass)
9138 MonoClass *element_class;
9139 if (klass->rank != 1)
9142 element_class = klass->element_class;
9143 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9147 get_virtual_stelemref_kind (MonoClass *element_class)
9149 if (element_class == mono_defaults.object_class)
9150 return STELEMREF_OBJECT;
9151 if (is_monomorphic_array (element_class))
9152 return STELEMREF_SEALED_CLASS;
9153 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9154 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9155 #ifdef COMPRESSED_INTERFACE_BITMAP
9156 return STELEMREF_COMPLEX;
9158 return STELEMREF_INTERFACE;
9160 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9161 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9162 return STELEMREF_COMPLEX;
9163 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9164 return STELEMREF_SEALED_CLASS;
9165 return STELEMREF_CLASS;
9171 load_array_element_address (MonoMethodBuilder *mb)
9173 mono_mb_emit_ldarg (mb, 0);
9174 mono_mb_emit_ldarg (mb, 1);
9175 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9179 load_array_class (MonoMethodBuilder *mb, int aklass)
9181 mono_mb_emit_ldarg (mb, 0);
9182 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9183 mono_mb_emit_byte (mb, CEE_LDIND_I);
9184 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9185 mono_mb_emit_byte (mb, CEE_LDIND_I);
9186 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9187 mono_mb_emit_byte (mb, CEE_LDIND_I);
9188 mono_mb_emit_stloc (mb, aklass);
9192 load_value_class (MonoMethodBuilder *mb, int vklass)
9194 mono_mb_emit_ldarg (mb, 2);
9195 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9196 mono_mb_emit_byte (mb, CEE_LDIND_I);
9197 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9198 mono_mb_emit_byte (mb, CEE_LDIND_I);
9199 mono_mb_emit_stloc (mb, vklass);
9205 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9207 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9208 printf ("slow vstore of %s\n", name);
9214 * The wrapper info for the wrapper is a WrapperInfo structure.
9217 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9218 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9219 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9220 * - Add a case for arrays of arrays.
9223 get_virtual_stelemref_wrapper (int kind)
9225 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9226 static MonoMethodSignature *signature;
9227 MonoMethodBuilder *mb;
9230 const char *param_names [16];
9232 int aklass, vklass, vtable, uiid;
9233 int array_slot_addr;
9236 if (cached_methods [kind])
9237 return cached_methods [kind];
9239 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9240 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9244 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9246 /* void this::stelemref (size_t idx, void* value) */
9247 sig->ret = &mono_defaults.void_class->byval_arg;
9248 sig->hasthis = TRUE;
9249 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9250 sig->params [1] = &mono_defaults.object_class->byval_arg;
9255 param_names [0] = "index";
9256 param_names [1] = "value";
9257 mono_mb_set_param_names (mb, param_names);
9259 /*For now simply call plain old stelemref*/
9261 case STELEMREF_OBJECT:
9262 /* ldelema (implicit bound check) */
9263 load_array_element_address (mb);
9265 mono_mb_emit_ldarg (mb, 2);
9266 mono_mb_emit_byte (mb, CEE_STIND_REF);
9267 mono_mb_emit_byte (mb, CEE_RET);
9270 case STELEMREF_COMPLEX:
9272 <ldelema (bound check)>
9275 if (!mono_object_isinst (value, aklass))
9279 *array_slot_addr = value;
9282 throw new ArrayTypeMismatchException ();
9285 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9286 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9290 /*Use this to debug/record stores that are going thru the slow path*/
9291 MonoMethodSignature *csig;
9292 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9293 csig->ret = &mono_defaults.void_class->byval_arg;
9294 csig->params [0] = &mono_defaults.object_class->byval_arg;
9295 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9296 csig->params [2] = &mono_defaults.object_class->byval_arg;
9297 mono_mb_emit_ldarg (mb, 0);
9298 mono_mb_emit_ldarg (mb, 1);
9299 mono_mb_emit_ldarg (mb, 2);
9300 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9304 /* ldelema (implicit bound check) */
9305 load_array_element_address (mb);
9306 mono_mb_emit_stloc (mb, array_slot_addr);
9308 /* if (!value) goto do_store */
9309 mono_mb_emit_ldarg (mb, 2);
9310 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9312 /* aklass = array->vtable->klass->element_class */
9313 load_array_class (mb, aklass);
9315 /*if (mono_object_isinst (value, aklass)) */
9316 mono_mb_emit_ldarg (mb, 2);
9317 mono_mb_emit_ldloc (mb, aklass);
9318 mono_mb_emit_icall (mb, mono_object_isinst);
9319 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9322 mono_mb_patch_branch (mb, b1);
9323 mono_mb_emit_ldloc (mb, array_slot_addr);
9324 mono_mb_emit_ldarg (mb, 2);
9325 mono_mb_emit_byte (mb, CEE_STIND_REF);
9326 mono_mb_emit_byte (mb, CEE_RET);
9329 mono_mb_patch_branch (mb, b2);
9331 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9334 case STELEMREF_SEALED_CLASS:
9336 <ldelema (bound check)>
9340 aklass = array->vtable->klass->element_class;
9341 vklass = value->vtable->klass;
9343 if (vklass != aklass)
9347 *array_slot_addr = value;
9350 throw new ArrayTypeMismatchException ();
9352 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9353 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9354 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9357 /* ldelema (implicit bound check) */
9358 load_array_element_address (mb);
9359 mono_mb_emit_stloc (mb, array_slot_addr);
9361 /* if (!value) goto do_store */
9362 mono_mb_emit_ldarg (mb, 2);
9363 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9365 /* aklass = array->vtable->klass->element_class */
9366 load_array_class (mb, aklass);
9368 /* vklass = value->vtable->klass */
9369 load_value_class (mb, vklass);
9371 /*if (vklass != aklass) goto do_exception; */
9372 mono_mb_emit_ldloc (mb, aklass);
9373 mono_mb_emit_ldloc (mb, vklass);
9374 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9377 mono_mb_patch_branch (mb, b1);
9378 mono_mb_emit_ldloc (mb, array_slot_addr);
9379 mono_mb_emit_ldarg (mb, 2);
9380 mono_mb_emit_byte (mb, CEE_STIND_REF);
9381 mono_mb_emit_byte (mb, CEE_RET);
9384 mono_mb_patch_branch (mb, b2);
9385 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9388 case STELEMREF_CLASS:
9391 <ldelema (bound check)>
9395 aklass = array->vtable->klass->element_class;
9396 vklass = value->vtable->klass;
9398 if (vklass->idepth < aklass->idepth)
9401 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9405 *array_slot_addr = value;
9409 throw new ArrayTypeMismatchException ();
9411 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9412 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9413 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9415 /* ldelema (implicit bound check) */
9416 load_array_element_address (mb);
9417 mono_mb_emit_stloc (mb, array_slot_addr);
9419 /* if (!value) goto do_store */
9420 mono_mb_emit_ldarg (mb, 2);
9421 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9423 /* aklass = array->vtable->klass->element_class */
9424 load_array_class (mb, aklass);
9426 /* vklass = value->vtable->klass */
9427 load_value_class (mb, vklass);
9429 /*if (mono_object_isinst (value, aklass)) */
9430 mono_mb_emit_ldarg (mb, 2);
9431 mono_mb_emit_ldloc (mb, aklass);
9432 mono_mb_emit_icall (mb, mono_object_isinst);
9433 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9435 /* if (vklass->idepth < aklass->idepth) goto failue */
9436 mono_mb_emit_ldloc (mb, vklass);
9437 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9438 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9440 mono_mb_emit_ldloc (mb, aklass);
9441 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9442 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9444 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9446 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9447 mono_mb_emit_ldloc (mb, vklass);
9448 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9449 mono_mb_emit_byte (mb, CEE_LDIND_I);
9451 mono_mb_emit_ldloc (mb, aklass);
9452 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9453 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9454 mono_mb_emit_icon (mb, 1);
9455 mono_mb_emit_byte (mb, CEE_SUB);
9456 mono_mb_emit_icon (mb, sizeof (void*));
9457 mono_mb_emit_byte (mb, CEE_MUL);
9458 mono_mb_emit_byte (mb, CEE_ADD);
9459 mono_mb_emit_byte (mb, CEE_LDIND_I);
9461 mono_mb_emit_ldloc (mb, aklass);
9462 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9465 mono_mb_patch_branch (mb, b1);
9466 mono_mb_emit_ldloc (mb, array_slot_addr);
9467 mono_mb_emit_ldarg (mb, 2);
9468 mono_mb_emit_byte (mb, CEE_STIND_REF);
9469 mono_mb_emit_byte (mb, CEE_RET);
9472 mono_mb_patch_branch (mb, b2);
9473 mono_mb_patch_branch (mb, b3);
9475 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9478 case STELEMREF_INTERFACE:
9485 klass = array->obj.vtable->klass->element_class;
9487 uiid = klass->interface_id;
9488 if (uiid > vt->max_interface_id)
9490 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9493 mono_array_setref (array, index, value);
9496 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9498 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9499 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9500 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9501 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9503 /* ldelema (implicit bound check) */
9504 load_array_element_address (mb);
9505 mono_mb_emit_stloc (mb, array_slot_addr);
9507 /* if (!value) goto do_store */
9508 mono_mb_emit_ldarg (mb, 2);
9509 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9511 /* klass = array->vtable->klass->element_class */
9512 load_array_class (mb, aklass);
9514 /* vt = value->vtable */
9515 mono_mb_emit_ldarg (mb, 2);
9516 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9517 mono_mb_emit_byte (mb, CEE_LDIND_I);
9518 mono_mb_emit_stloc (mb, vtable);
9520 /* uiid = klass->interface_id; */
9521 mono_mb_emit_ldloc (mb, aklass);
9522 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9523 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9524 mono_mb_emit_stloc (mb, uiid);
9526 /*if (uiid > vt->max_interface_id)*/
9527 mono_mb_emit_ldloc (mb, uiid);
9528 mono_mb_emit_ldloc (mb, vtable);
9529 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9530 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9531 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9533 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9535 /*vt->interface_bitmap*/
9536 mono_mb_emit_ldloc (mb, vtable);
9537 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9538 mono_mb_emit_byte (mb, CEE_LDIND_I);
9541 mono_mb_emit_ldloc (mb, uiid);
9542 mono_mb_emit_icon (mb, 3);
9543 mono_mb_emit_byte (mb, CEE_SHR_UN);
9545 /*vt->interface_bitmap [(uiid) >> 3]*/
9546 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9547 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9549 /*(1 << ((uiid)&7)))*/
9550 mono_mb_emit_icon (mb, 1);
9551 mono_mb_emit_ldloc (mb, uiid);
9552 mono_mb_emit_icon (mb, 7);
9553 mono_mb_emit_byte (mb, CEE_AND);
9554 mono_mb_emit_byte (mb, CEE_SHL);
9556 /*bitwise and the whole thing*/
9557 mono_mb_emit_byte (mb, CEE_AND);
9558 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9561 mono_mb_patch_branch (mb, b1);
9562 mono_mb_emit_ldloc (mb, array_slot_addr);
9563 mono_mb_emit_ldarg (mb, 2);
9564 mono_mb_emit_byte (mb, CEE_STIND_REF);
9565 mono_mb_emit_byte (mb, CEE_RET);
9568 mono_mb_patch_branch (mb, b2);
9569 mono_mb_patch_branch (mb, b3);
9570 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9574 mono_mb_emit_ldarg (mb, 0);
9575 mono_mb_emit_ldarg (mb, 1);
9576 mono_mb_emit_ldarg (mb, 2);
9577 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9578 mono_mb_emit_byte (mb, CEE_RET);
9581 #endif /* DISABLE_JIT */
9582 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9583 info->d.virtual_stelemref.kind = kind;
9584 res = mono_mb_create (mb, signature, 4, info);
9585 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9587 mono_marshal_lock ();
9588 if (!cached_methods [kind]) {
9589 cached_methods [kind] = res;
9590 mono_marshal_unlock ();
9592 mono_marshal_unlock ();
9593 mono_free_method (res);
9597 return cached_methods [kind];
9601 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9605 g_assert (array_class->rank == 1);
9606 kind = get_virtual_stelemref_kind (array_class->element_class);
9608 return get_virtual_stelemref_wrapper (kind);
9612 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9617 *nwrappers = STELEMREF_KIND_COUNT;
9618 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9619 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9620 res [i] = get_virtual_stelemref_wrapper (i);
9625 * The wrapper info for the wrapper is a WrapperInfo structure.
9628 mono_marshal_get_stelemref (void)
9630 static MonoMethod* ret = NULL;
9631 MonoMethodSignature *sig;
9632 MonoMethodBuilder *mb;
9635 guint32 b1, b2, b3, b4;
9638 int array_slot_addr;
9643 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9646 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9648 /* void stelemref (void* array, int idx, void* value) */
9649 sig->ret = &mono_defaults.void_class->byval_arg;
9650 sig->params [0] = &mono_defaults.object_class->byval_arg;
9651 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9652 sig->params [2] = &mono_defaults.object_class->byval_arg;
9655 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9656 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9657 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9661 <ldelema (bound check)>
9665 aklass = array->vtable->klass->element_class;
9666 vklass = value->vtable->klass;
9668 if (vklass->idepth < aklass->idepth)
9671 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9675 *array_slot_addr = value;
9679 if (mono_object_isinst (value, aklass))
9682 throw new ArrayTypeMismatchException ();
9685 /* ldelema (implicit bound check) */
9686 mono_mb_emit_ldarg (mb, 0);
9687 mono_mb_emit_ldarg (mb, 1);
9688 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9689 mono_mb_emit_stloc (mb, array_slot_addr);
9691 /* if (!value) goto do_store */
9692 mono_mb_emit_ldarg (mb, 2);
9693 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9695 /* aklass = array->vtable->klass->element_class */
9696 mono_mb_emit_ldarg (mb, 0);
9697 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9698 mono_mb_emit_byte (mb, CEE_LDIND_I);
9699 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9700 mono_mb_emit_byte (mb, CEE_LDIND_I);
9701 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9702 mono_mb_emit_byte (mb, CEE_LDIND_I);
9703 mono_mb_emit_stloc (mb, aklass);
9705 /* vklass = value->vtable->klass */
9706 mono_mb_emit_ldarg (mb, 2);
9707 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9708 mono_mb_emit_byte (mb, CEE_LDIND_I);
9709 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9710 mono_mb_emit_byte (mb, CEE_LDIND_I);
9711 mono_mb_emit_stloc (mb, vklass);
9713 /* if (vklass->idepth < aklass->idepth) goto failue */
9714 mono_mb_emit_ldloc (mb, vklass);
9715 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9716 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9718 mono_mb_emit_ldloc (mb, aklass);
9719 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9720 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9722 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9724 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9725 mono_mb_emit_ldloc (mb, vklass);
9726 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9727 mono_mb_emit_byte (mb, CEE_LDIND_I);
9729 mono_mb_emit_ldloc (mb, aklass);
9730 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9731 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9732 mono_mb_emit_icon (mb, 1);
9733 mono_mb_emit_byte (mb, CEE_SUB);
9734 mono_mb_emit_icon (mb, sizeof (void*));
9735 mono_mb_emit_byte (mb, CEE_MUL);
9736 mono_mb_emit_byte (mb, CEE_ADD);
9737 mono_mb_emit_byte (mb, CEE_LDIND_I);
9739 mono_mb_emit_ldloc (mb, aklass);
9741 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9743 copy_pos = mono_mb_get_label (mb);
9745 mono_mb_patch_branch (mb, b1);
9746 mono_mb_emit_ldloc (mb, array_slot_addr);
9747 mono_mb_emit_ldarg (mb, 2);
9748 mono_mb_emit_byte (mb, CEE_STIND_REF);
9750 mono_mb_emit_byte (mb, CEE_RET);
9753 mono_mb_patch_branch (mb, b2);
9754 mono_mb_patch_branch (mb, b3);
9756 mono_mb_emit_ldarg (mb, 2);
9757 mono_mb_emit_ldloc (mb, aklass);
9758 mono_mb_emit_icall (mb, mono_object_isinst);
9760 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9761 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9762 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9764 mono_mb_emit_byte (mb, CEE_RET);
9766 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9767 ret = mono_mb_create (mb, sig, 4, info);
9774 * mono_marshal_get_gsharedvt_in_wrapper:
9776 * This wrapper handles calls from normal code to gsharedvt code.
9778 * The wrapper info for the wrapper is a WrapperInfo structure.
9781 mono_marshal_get_gsharedvt_in_wrapper (void)
9783 static MonoMethod* ret = NULL;
9784 MonoMethodSignature *sig;
9785 MonoMethodBuilder *mb;
9791 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
9793 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9794 sig->ret = &mono_defaults.void_class->byval_arg;
9798 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9800 mono_mb_emit_byte (mb, CEE_RET);
9802 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
9803 ret = mono_mb_create (mb, sig, 4, info);
9810 * mono_marshal_get_gsharedvt_out_wrapper:
9812 * This wrapper handles calls from gsharedvt code to normal code.
9814 * The wrapper info for the wrapper is a WrapperInfo structure.
9817 mono_marshal_get_gsharedvt_out_wrapper (void)
9819 static MonoMethod* ret = NULL;
9820 MonoMethodSignature *sig;
9821 MonoMethodBuilder *mb;
9827 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
9829 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
9830 sig->ret = &mono_defaults.void_class->byval_arg;
9834 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
9836 mono_mb_emit_byte (mb, CEE_RET);
9838 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
9839 ret = mono_mb_create (mb, sig, 4, info);
9851 /* LOCKING: vars accessed under the marshal lock */
9852 static ArrayElemAddr *elem_addr_cache = NULL;
9853 static int elem_addr_cache_size = 0;
9854 static int elem_addr_cache_next = 0;
9857 * mono_marshal_get_array_address:
9858 * @rank: rank of the array type
9859 * @elem_size: size in bytes of an element of an array.
9861 * Returns a MonoMethod that implements the code to get the address
9862 * of an element in a multi-dimenasional array of @rank dimensions.
9863 * The returned method takes an array as the first argument and then
9864 * @rank indexes for the @rank dimensions.
9865 * If ELEM_SIZE is 0, read the array size from the array object.
9868 mono_marshal_get_array_address (int rank, int elem_size)
9871 MonoMethodBuilder *mb;
9872 MonoMethodSignature *sig;
9875 int i, bounds, ind, realidx;
9876 int branch_pos, *branch_positions;
9880 mono_marshal_lock ();
9881 for (i = 0; i < elem_addr_cache_next; ++i) {
9882 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9883 ret = elem_addr_cache [i].method;
9887 mono_marshal_unlock ();
9891 branch_positions = g_new0 (int, rank);
9893 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9895 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9896 sig->ret = &mono_defaults.int_class->byval_arg;
9897 sig->params [0] = &mono_defaults.object_class->byval_arg;
9898 for (i = 0; i < rank; ++i) {
9899 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9902 name = g_strdup_printf ("ElementAddr_%d", elem_size);
9903 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9907 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9908 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9909 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9911 /* bounds = array->bounds; */
9912 mono_mb_emit_ldarg (mb, 0);
9913 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
9914 mono_mb_emit_byte (mb, CEE_LDIND_I);
9915 mono_mb_emit_stloc (mb, bounds);
9917 /* ind is the overall element index, realidx is the partial index in a single dimension */
9918 /* ind = idx0 - bounds [0].lower_bound */
9919 mono_mb_emit_ldarg (mb, 1);
9920 mono_mb_emit_ldloc (mb, bounds);
9921 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9922 mono_mb_emit_byte (mb, CEE_ADD);
9923 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9924 mono_mb_emit_byte (mb, CEE_SUB);
9925 mono_mb_emit_stloc (mb, ind);
9926 /* if (ind >= bounds [0].length) goto exeception; */
9927 mono_mb_emit_ldloc (mb, ind);
9928 mono_mb_emit_ldloc (mb, bounds);
9929 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9930 mono_mb_emit_byte (mb, CEE_ADD);
9931 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9932 /* note that we use unsigned comparison */
9933 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9935 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9936 * We could also decide to ignore the passed elem_size and get it
9937 * from the array object, to reduce the number of methods we generate:
9938 * the additional cost is 3 memory loads and a non-immediate mul.
9940 for (i = 1; i < rank; ++i) {
9941 /* realidx = idxi - bounds [i].lower_bound */
9942 mono_mb_emit_ldarg (mb, 1 + i);
9943 mono_mb_emit_ldloc (mb, bounds);
9944 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9945 mono_mb_emit_byte (mb, CEE_ADD);
9946 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9947 mono_mb_emit_byte (mb, CEE_SUB);
9948 mono_mb_emit_stloc (mb, realidx);
9949 /* if (realidx >= bounds [i].length) goto exeception; */
9950 mono_mb_emit_ldloc (mb, realidx);
9951 mono_mb_emit_ldloc (mb, bounds);
9952 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9953 mono_mb_emit_byte (mb, CEE_ADD);
9954 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9955 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9956 /* ind = ind * bounds [i].length + realidx */
9957 mono_mb_emit_ldloc (mb, ind);
9958 mono_mb_emit_ldloc (mb, bounds);
9959 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
9960 mono_mb_emit_byte (mb, CEE_ADD);
9961 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9962 mono_mb_emit_byte (mb, CEE_MUL);
9963 mono_mb_emit_ldloc (mb, realidx);
9964 mono_mb_emit_byte (mb, CEE_ADD);
9965 mono_mb_emit_stloc (mb, ind);
9968 /* return array->vector + ind * element_size */
9969 mono_mb_emit_ldarg (mb, 0);
9970 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
9971 mono_mb_emit_ldloc (mb, ind);
9973 mono_mb_emit_icon (mb, elem_size);
9975 /* Load arr->vtable->klass->sizes.element_class */
9976 mono_mb_emit_ldarg (mb, 0);
9977 mono_mb_emit_byte (mb, CEE_CONV_I);
9978 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9979 mono_mb_emit_byte (mb, CEE_ADD);
9980 mono_mb_emit_byte (mb, CEE_LDIND_I);
9981 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9982 mono_mb_emit_byte (mb, CEE_ADD);
9983 mono_mb_emit_byte (mb, CEE_LDIND_I);
9984 /* sizes is an union, so this reads sizes.element_size */
9985 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
9986 mono_mb_emit_byte (mb, CEE_ADD);
9987 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9989 mono_mb_emit_byte (mb, CEE_MUL);
9990 mono_mb_emit_byte (mb, CEE_ADD);
9991 mono_mb_emit_byte (mb, CEE_RET);
9993 /* patch the branches to get here and throw */
9994 for (i = 1; i < rank; ++i) {
9995 mono_mb_patch_branch (mb, branch_positions [i]);
9997 mono_mb_patch_branch (mb, branch_pos);
9998 /* throw exception */
9999 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10001 g_free (branch_positions);
10002 #endif /* DISABLE_JIT */
10004 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10005 info->d.element_addr.rank = rank;
10006 info->d.element_addr.elem_size = elem_size;
10007 ret = mono_mb_create (mb, sig, 4, info);
10010 /* cache the result */
10012 mono_marshal_lock ();
10013 for (i = 0; i < elem_addr_cache_next; ++i) {
10014 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10015 /* FIXME: free ret */
10016 ret = elem_addr_cache [i].method;
10022 if (elem_addr_cache_next >= elem_addr_cache_size) {
10023 int new_size = elem_addr_cache_size + 4;
10024 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10025 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10026 g_free (elem_addr_cache);
10027 elem_addr_cache = new_array;
10028 elem_addr_cache_size = new_size;
10030 elem_addr_cache [elem_addr_cache_next].rank = rank;
10031 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10032 elem_addr_cache [elem_addr_cache_next].method = ret;
10033 elem_addr_cache_next ++;
10035 mono_marshal_unlock ();
10040 * mono_marshal_get_array_accessor_wrapper:
10042 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10045 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10047 MonoMethodSignature *sig;
10048 MonoMethodBuilder *mb;
10052 MonoGenericContext *ctx = NULL;
10053 MonoMethod *orig_method = NULL;
10054 MonoGenericContainer *container = NULL;
10058 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10059 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10060 * FIXME: Use generic methods.
10067 g_assert_not_reached ();
10069 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10070 if ((res = mono_marshal_find_in_cache (cache, method)))
10074 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10077 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10079 #ifndef DISABLE_JIT
10080 /* Call the method */
10082 mono_mb_emit_ldarg (mb, 0);
10083 for (i = 0; i < sig->param_count; i++)
10084 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10088 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10089 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10091 mono_mb_emit_managed_call (mb, method, NULL);
10093 mono_mb_emit_byte (mb, CEE_RET);
10096 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10097 info->d.array_accessor.method = method;
10101 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10102 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10104 res = mono_mb_create_and_cache_full (cache, method,
10105 mb, sig, sig->param_count + 16,
10114 mono_marshal_alloc (gulong size, MonoError *error)
10118 mono_error_init (error);
10121 res = CoTaskMemAlloc (size);
10123 res = g_try_malloc ((gulong)size);
10125 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10131 ves_icall_marshal_alloc (gulong size)
10134 void *ret = mono_marshal_alloc (size, &error);
10135 mono_error_raise_exception (&error);
10141 mono_marshal_free (gpointer ptr)
10144 CoTaskMemFree (ptr);
10151 mono_marshal_free_array (gpointer *ptr, int size)
10158 for (i = 0; i < size; i++)
10164 mono_marshal_string_to_utf16 (MonoString *s)
10166 return s ? mono_string_chars (s) : NULL;
10170 mono_marshal_string_to_utf16_copy (MonoString *s)
10176 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10177 mono_error_raise_exception (&error); /* FIXME don't raise here */
10178 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10179 res [mono_string_length (s)] = 0;
10185 * mono_marshal_set_last_error:
10187 * This function is invoked to set the last error value from a P/Invoke call
10188 * which has SetLastError set.
10191 mono_marshal_set_last_error (void)
10194 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10196 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10201 mono_marshal_set_last_error_windows (int error)
10204 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10209 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10210 gpointer dest, gint32 length)
10215 MONO_CHECK_ARG_NULL (src,);
10216 MONO_CHECK_ARG_NULL (dest,);
10218 if (src->obj.vtable->klass->rank != 1) {
10219 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10222 if (start_index < 0) {
10223 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10227 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10230 if (start_index + length > mono_array_length (src)) {
10231 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10235 element_size = mono_array_element_size (src->obj.vtable->klass);
10237 /* no references should be involved */
10238 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10240 memcpy (dest, source_addr, length * element_size);
10244 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10245 MonoArray *dest, gint32 length)
10250 MONO_CHECK_ARG_NULL (src,);
10251 MONO_CHECK_ARG_NULL (dest,);
10253 if (dest->obj.vtable->klass->rank != 1) {
10254 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10257 if (start_index < 0) {
10258 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10262 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10265 if (start_index + length > mono_array_length (dest)) {
10266 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10269 element_size = mono_array_element_size (dest->obj.vtable->klass);
10271 /* no references should be involved */
10272 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10274 memcpy (dest_addr, src, length * element_size);
10278 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10283 return mono_string_new (mono_domain_get (), ptr);
10287 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10290 mono_set_pending_exception (mono_get_exception_argument_null ("ptr"));
10293 return mono_string_new_len (mono_domain_get (), ptr, len);
10298 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10301 MonoString *res = NULL;
10302 MonoDomain *domain = mono_domain_get ();
10312 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10313 mono_error_raise_exception (&error);
10318 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10321 MonoString *res = NULL;
10322 MonoDomain *domain = mono_domain_get ();
10324 mono_error_init (&error);
10328 mono_error_set_argument_null (&error, "ptr", "");
10330 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10333 if (!mono_error_ok (&error))
10334 mono_error_set_pending_exception (&error);
10339 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10341 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10345 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10351 MONO_CHECK_ARG_NULL (rtype, 0);
10353 type = rtype->type;
10354 klass = mono_class_from_mono_type (type);
10355 if (!mono_class_init (klass)) {
10356 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10360 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10362 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10363 return sizeof (gpointer);
10364 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10366 MonoException *exc;
10368 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10369 exc = mono_get_exception_argument ("t", msg);
10371 mono_set_pending_exception (exc);
10375 return mono_class_native_size (klass, NULL);
10379 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10382 MonoMethod *method;
10385 MONO_CHECK_ARG_NULL (obj,);
10386 MONO_CHECK_ARG_NULL (dst,);
10388 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10392 pa [2] = &delete_old;
10394 mono_runtime_invoke_checked (method, NULL, pa, &error);
10395 mono_error_raise_exception (&error);
10399 ptr_to_structure (gpointer src, MonoObject *dst)
10402 MonoMethod *method;
10405 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10410 mono_runtime_invoke_checked (method, NULL, pa, &error);
10411 mono_error_raise_exception (&error); /* FIXME don't raise here */
10415 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10419 MONO_CHECK_ARG_NULL (src,);
10420 MONO_CHECK_ARG_NULL (dst,);
10422 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10424 if (t->type == MONO_TYPE_VALUETYPE) {
10425 MonoException *exc;
10428 tmp = g_strdup_printf ("Destination is a boxed value type.");
10429 exc = mono_get_exception_argument ("dst", tmp);
10432 mono_set_pending_exception (exc);
10436 ptr_to_structure (src, dst);
10440 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10444 MonoDomain *domain = mono_domain_get ();
10449 MONO_CHECK_ARG_NULL (type, NULL);
10451 klass = mono_class_from_mono_type (type->type);
10452 if (!mono_class_init (klass)) {
10453 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10457 res = mono_object_new_checked (domain, klass, &error);
10458 mono_error_raise_exception (&error);
10460 ptr_to_structure (src, res);
10466 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10468 MonoMarshalType *info;
10471 int match_index = -1;
10473 MONO_CHECK_ARG_NULL (type, 0);
10474 MONO_CHECK_ARG_NULL (field_name, 0);
10476 fname = mono_string_to_utf8 (field_name);
10477 klass = mono_class_from_mono_type (type->type);
10478 if (!mono_class_init (klass)) {
10479 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10483 while (klass && match_index == -1) {
10484 MonoClassField* field;
10486 gpointer iter = NULL;
10487 while ((field = mono_class_get_fields (klass, &iter))) {
10488 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10490 if (!strcmp (fname, mono_field_get_name (field))) {
10497 if (match_index == -1)
10498 klass = klass->parent;
10503 if(match_index == -1) {
10504 MonoException* exc;
10507 /* Get back original class instance */
10508 klass = mono_class_from_mono_type (type->type);
10510 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10511 exc = mono_get_exception_argument ("fieldName", tmp);
10514 mono_set_pending_exception ((MonoException*)exc);
10518 info = mono_marshal_load_type_info (klass);
10519 return info->fields [match_index].offset;
10523 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10528 tres = mono_string_to_utf8 (string);
10532 len = strlen (tres) + 1;
10533 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10534 memcpy (ret, tres, len);
10539 return mono_string_to_utf8 (string);
10544 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10546 if (string == NULL)
10549 #ifdef TARGET_WIN32
10550 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10551 ((mono_string_length (string) + 1) * 2);
10553 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10555 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10556 res [mono_string_length (string)] = 0;
10562 mono_struct_delete_old (MonoClass *klass, char *ptr)
10564 MonoMarshalType *info;
10567 info = mono_marshal_load_type_info (klass);
10569 for (i = 0; i < info->num_fields; i++) {
10570 MonoMarshalConv conv;
10571 MonoType *ftype = info->fields [i].field->type;
10574 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10577 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10578 klass->unicode, &conv);
10580 cpos = ptr + info->fields [i].offset;
10583 case MONO_MARSHAL_CONV_NONE:
10584 if (MONO_TYPE_ISSTRUCT (ftype)) {
10585 mono_struct_delete_old (ftype->data.klass, cpos);
10589 case MONO_MARSHAL_CONV_STR_LPWSTR:
10590 /* We assume this field points inside a MonoString */
10592 case MONO_MARSHAL_CONV_STR_LPTSTR:
10593 #ifdef TARGET_WIN32
10594 /* We assume this field points inside a MonoString
10598 case MONO_MARSHAL_CONV_STR_LPSTR:
10599 case MONO_MARSHAL_CONV_STR_BSTR:
10600 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10601 case MONO_MARSHAL_CONV_STR_TBSTR:
10602 mono_marshal_free (*(gpointer *)cpos);
10612 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10616 MONO_CHECK_ARG_NULL (src,);
10617 MONO_CHECK_ARG_NULL (type,);
10619 klass = mono_class_from_mono_type (type->type);
10620 if (!mono_class_init (klass)) {
10621 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10625 mono_struct_delete_old (klass, (char *)src);
10629 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10632 size_t s = (size_t)size;
10635 /* This returns a valid pointer for size 0 on MS.NET */
10639 res = GlobalAlloc (GMEM_FIXED, s);
10641 res = g_try_malloc (s);
10644 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10650 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10653 size_t s = (size_t)size;
10656 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10661 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10663 res = g_try_realloc (ptr, s);
10666 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10672 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10682 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10687 res = CoTaskMemAlloc (size);
10689 if ((gulong)size == 0)
10690 /* This returns a valid pointer for size 0 on MS.NET */
10693 res = g_try_malloc ((gulong)size);
10696 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10701 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10704 CoTaskMemFree (ptr);
10711 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10716 res = CoTaskMemRealloc (ptr, size);
10718 res = g_try_realloc (ptr, (gulong)size);
10721 mono_raise_exception (mono_domain_get ()->out_of_memory_ex);
10726 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10728 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10732 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10734 MonoClass *klass = mono_type_get_class (type->type);
10735 if (!mono_class_init (klass)) {
10736 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10740 return mono_ftnptr_to_delegate (klass, ftn);
10744 * mono_marshal_is_loading_type_info:
10746 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10750 mono_marshal_is_loading_type_info (MonoClass *klass)
10752 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10754 return g_slist_find (loads_list, klass) != NULL;
10758 * mono_marshal_load_type_info:
10760 * Initialize klass->marshal_info using information from metadata. This function can
10761 * recursively call itself, and the caller is responsible to avoid that by calling
10762 * mono_marshal_is_loading_type_info () beforehand.
10764 * LOCKING: Acquires the loader lock.
10767 mono_marshal_load_type_info (MonoClass* klass)
10770 guint32 native_size = 0, min_align = 1, packing;
10771 MonoMarshalType *info;
10772 MonoClassField* field;
10775 GSList *loads_list;
10777 g_assert (klass != NULL);
10779 if (klass->marshal_info)
10780 return klass->marshal_info;
10782 if (!klass->inited)
10783 mono_class_init (klass);
10785 if (klass->marshal_info)
10786 return klass->marshal_info;
10789 * This function can recursively call itself, so we keep the list of classes which are
10790 * under initialization in a TLS list.
10792 g_assert (!mono_marshal_is_loading_type_info (klass));
10793 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10794 loads_list = g_slist_prepend (loads_list, klass);
10795 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10798 while ((field = mono_class_get_fields (klass, &iter))) {
10799 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10801 if (mono_field_is_deleted (field))
10806 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10808 /* The mempool is protected by the loader lock */
10809 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
10810 info->num_fields = count;
10812 /* Try to find a size for this type in metadata */
10813 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10815 if (klass->parent) {
10816 int parent_size = mono_class_native_size (klass->parent, NULL);
10818 /* Add parent size to real size */
10819 native_size += parent_size;
10820 info->native_size = parent_size;
10823 packing = klass->packing_size ? klass->packing_size : 8;
10826 while ((field = mono_class_get_fields (klass, &iter))) {
10830 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10833 if (mono_field_is_deleted (field))
10835 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10836 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10837 NULL, NULL, &info->fields [j].mspec);
10839 info->fields [j].field = field;
10841 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10842 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
10843 /* This field is a hack inserted by MCS to empty structures */
10848 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10849 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10850 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10851 &align, TRUE, klass->unicode);
10852 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10853 min_align = MAX (align, min_align);
10854 info->fields [j].offset = info->native_size;
10855 info->fields [j].offset += align - 1;
10856 info->fields [j].offset &= ~(align - 1);
10857 info->native_size = info->fields [j].offset + size;
10859 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10860 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10861 &align, TRUE, klass->unicode);
10862 min_align = MAX (align, min_align);
10863 info->fields [j].offset = field->offset - sizeof (MonoObject);
10864 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10870 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10871 info->native_size = MAX (native_size, info->native_size);
10873 * If the provided Size is equal or larger than the calculated size, and there
10874 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
10876 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
10877 if (native_size && native_size == info->native_size && klass->packing_size == 0)
10880 min_align = MIN (min_align, packing);
10884 if (info->native_size & (min_align - 1)) {
10885 info->native_size += min_align - 1;
10886 info->native_size &= ~(min_align - 1);
10889 info->min_align = min_align;
10891 /* Update the class's blittable info, if the layouts don't match */
10892 if (info->native_size != mono_class_value_size (klass, NULL))
10893 klass->blittable = FALSE;
10895 /* If this is an array type, ensure that we have element info */
10896 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
10897 mono_marshal_load_type_info (klass->element_class);
10900 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
10901 loads_list = g_slist_remove (loads_list, klass);
10902 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
10904 mono_marshal_lock ();
10905 if (!klass->marshal_info) {
10906 /*We do double-checking locking on marshal_info */
10907 mono_memory_barrier ();
10908 klass->marshal_info = info;
10910 mono_marshal_unlock ();
10912 return klass->marshal_info;
10916 * mono_class_native_size:
10919 * Returns: the native size of an object instance (when marshaled
10920 * to unmanaged code)
10923 mono_class_native_size (MonoClass *klass, guint32 *align)
10925 if (!klass->marshal_info) {
10926 if (mono_marshal_is_loading_type_info (klass)) {
10931 mono_marshal_load_type_info (klass);
10936 *align = klass->marshal_info->min_align;
10938 return klass->marshal_info->native_size;
10942 * mono_type_native_stack_size:
10943 * @t: the type to return the size it uses on the stack
10945 * Returns: the number of bytes required to hold an instance of this
10946 * type on the native stack
10949 mono_type_native_stack_size (MonoType *t, guint32 *align)
10953 g_assert (t != NULL);
10959 *align = sizeof (gpointer);
10960 return sizeof (gpointer);
10964 case MONO_TYPE_BOOLEAN:
10965 case MONO_TYPE_CHAR:
10976 case MONO_TYPE_STRING:
10977 case MONO_TYPE_OBJECT:
10978 case MONO_TYPE_CLASS:
10979 case MONO_TYPE_SZARRAY:
10980 case MONO_TYPE_PTR:
10981 case MONO_TYPE_FNPTR:
10982 case MONO_TYPE_ARRAY:
10983 *align = sizeof (gpointer);
10984 return sizeof (gpointer);
10989 *align = MONO_ABI_ALIGNOF (double);
10993 *align = MONO_ABI_ALIGNOF (gint64);
10995 case MONO_TYPE_GENERICINST:
10996 if (!mono_type_generic_inst_is_valuetype (t)) {
10997 *align = sizeof (gpointer);
10998 return sizeof (gpointer);
11001 case MONO_TYPE_TYPEDBYREF:
11002 case MONO_TYPE_VALUETYPE: {
11004 MonoClass *klass = mono_class_from_mono_type (t);
11006 if (klass->enumtype)
11007 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11009 size = mono_class_native_size (klass, align);
11010 *align = *align + 3;
11020 g_error ("type 0x%02x unknown", t->type);
11026 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11027 gboolean as_field, gboolean unicode)
11029 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11032 switch (native_type) {
11033 case MONO_NATIVE_BOOLEAN:
11036 case MONO_NATIVE_I1:
11037 case MONO_NATIVE_U1:
11040 case MONO_NATIVE_I2:
11041 case MONO_NATIVE_U2:
11042 case MONO_NATIVE_VARIANTBOOL:
11045 case MONO_NATIVE_I4:
11046 case MONO_NATIVE_U4:
11047 case MONO_NATIVE_ERROR:
11050 case MONO_NATIVE_I8:
11051 case MONO_NATIVE_U8:
11052 *align = MONO_ABI_ALIGNOF (gint64);
11054 case MONO_NATIVE_R4:
11057 case MONO_NATIVE_R8:
11058 *align = MONO_ABI_ALIGNOF (double);
11060 case MONO_NATIVE_INT:
11061 case MONO_NATIVE_UINT:
11062 case MONO_NATIVE_LPSTR:
11063 case MONO_NATIVE_LPWSTR:
11064 case MONO_NATIVE_LPTSTR:
11065 case MONO_NATIVE_BSTR:
11066 case MONO_NATIVE_ANSIBSTR:
11067 case MONO_NATIVE_TBSTR:
11068 case MONO_NATIVE_LPARRAY:
11069 case MONO_NATIVE_SAFEARRAY:
11070 case MONO_NATIVE_IUNKNOWN:
11071 case MONO_NATIVE_IDISPATCH:
11072 case MONO_NATIVE_INTERFACE:
11073 case MONO_NATIVE_ASANY:
11074 case MONO_NATIVE_FUNC:
11075 case MONO_NATIVE_LPSTRUCT:
11076 *align = MONO_ABI_ALIGNOF (gpointer);
11077 return sizeof (gpointer);
11078 case MONO_NATIVE_STRUCT:
11079 klass = mono_class_from_mono_type (type);
11080 if (klass == mono_defaults.object_class &&
11081 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11085 return mono_class_native_size (klass, align);
11086 case MONO_NATIVE_BYVALTSTR: {
11087 int esize = unicode ? 2: 1;
11090 return mspec->data.array_data.num_elem * esize;
11092 case MONO_NATIVE_BYVALARRAY: {
11093 // FIXME: Have to consider ArraySubType
11095 klass = mono_class_from_mono_type (type);
11096 if (klass->element_class == mono_defaults.char_class) {
11097 esize = unicode ? 2 : 1;
11100 esize = mono_class_native_size (klass->element_class, align);
11103 return mspec->data.array_data.num_elem * esize;
11105 case MONO_NATIVE_CUSTOM:
11106 *align = sizeof (gpointer);
11107 return sizeof (gpointer);
11109 case MONO_NATIVE_CURRENCY:
11110 case MONO_NATIVE_VBBYREFSTR:
11112 g_error ("native type %02x not implemented", native_type);
11115 g_assert_not_reached ();
11120 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11129 t = &o->vtable->klass->byval_arg;
11133 case MONO_TYPE_PTR:
11136 case MONO_TYPE_BOOLEAN:
11139 case MONO_TYPE_CHAR:
11144 return mono_object_unbox (o);
11146 case MONO_TYPE_STRING:
11147 switch (string_encoding) {
11148 case MONO_NATIVE_LPWSTR:
11149 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11151 case MONO_NATIVE_LPSTR:
11152 return mono_string_to_lpstr ((MonoString*)o);
11155 g_warning ("marshaling conversion %d not implemented", string_encoding);
11156 g_assert_not_reached ();
11159 case MONO_TYPE_CLASS:
11160 case MONO_TYPE_VALUETYPE: {
11161 MonoMethod *method;
11164 MonoBoolean delete_old = FALSE;
11166 klass = t->data.klass;
11168 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11171 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11172 klass->blittable || klass->enumtype))
11173 return mono_object_unbox (o);
11175 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11176 mono_error_raise_exception (&error); /* FIXME don't raise here */
11178 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11179 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11183 pa [2] = &delete_old;
11185 mono_runtime_invoke_checked (method, NULL, pa, &error);
11186 mono_error_raise_exception (&error); /* FIXME don't raise here */
11194 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11199 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11208 t = &o->vtable->klass->byval_arg;
11210 case MONO_TYPE_STRING:
11211 switch (string_encoding) {
11212 case MONO_NATIVE_LPWSTR:
11213 case MONO_NATIVE_LPSTR:
11214 mono_marshal_free (ptr);
11217 g_warning ("marshaling conversion %d not implemented", string_encoding);
11218 g_assert_not_reached ();
11221 case MONO_TYPE_CLASS:
11222 case MONO_TYPE_VALUETYPE: {
11223 klass = t->data.klass;
11225 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11226 klass->blittable || klass->enumtype))
11229 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11230 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11236 mono_runtime_invoke_checked (method, NULL, pa, &error);
11237 mono_error_raise_exception (&error); /* FIXME don't raise here */
11240 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11241 mono_struct_delete_old (klass, (char *)ptr);
11244 mono_marshal_free (ptr);
11253 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11255 MonoMethodSignature *sig, *csig;
11256 MonoMethodBuilder *mb;
11261 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11262 mb->method->slot = -1;
11264 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11265 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11267 sig = mono_method_signature (method);
11268 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11269 csig->generic_param_count = 0;
11271 #ifndef DISABLE_JIT
11272 mono_mb_emit_ldarg (mb, 0);
11273 for (i = 0; i < csig->param_count; i++)
11274 mono_mb_emit_ldarg (mb, i + 1);
11275 mono_mb_emit_managed_call (mb, method, NULL);
11276 mono_mb_emit_byte (mb, CEE_RET);
11278 /* We can corlib internal methods */
11279 mb->skip_visibility = TRUE;
11281 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11282 info->d.generic_array_helper.method = method;
11283 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11291 * The mono_win32_compat_* functions are implementations of inline
11292 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11293 * although not exported by kernel32.
11295 * We map the appropiate kernel32 entries to these functions using
11296 * dllmaps declared in the global etc/mono/config.
11300 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11302 if (!dest || !source)
11305 memcpy (dest, source, length);
11309 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11311 memset (dest, fill, length);
11315 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11317 if (!dest || !source)
11320 memmove (dest, source, length);
11324 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11326 memset (dest, 0, length);
11330 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11335 for (i = 0; i < len; ++i)
11339 g_assert (i < len);
11342 while (byte && !(byte & 1))
11344 g_assert (byte == 1);
11347 *bitmask = buf [i];
11351 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11353 MonoMethodBuilder *mb;
11354 MonoMethodSignature *sig, *csig;
11355 MonoExceptionClause *clause;
11360 int i, param_count, sig_size, pos_leave;
11361 int coop_gc_var, coop_gc_dummy_local;
11365 klass = method->klass;
11366 image = method->klass->image;
11368 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11370 if ((res = mono_marshal_find_in_cache (cache, method)))
11373 sig = mono_method_signature (method);
11374 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11376 /* add "this" and exception param */
11377 param_count = sig->param_count + sig->hasthis + 1;
11379 /* dup & extend signature */
11380 csig = mono_metadata_signature_alloc (image, param_count);
11381 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11382 memcpy (csig, sig, sig_size);
11383 csig->param_count = param_count;
11386 csig->call_convention = MONO_CALL_DEFAULT;
11388 if (sig->hasthis) {
11390 csig->params [0] = &klass->byval_arg;
11391 /* move params up by one */
11392 for (i = 0; i < sig->param_count; i++)
11393 csig->params [i + 1] = sig->params [i];
11396 /* setup exception param as byref+[out] */
11397 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11398 &mono_defaults.exception_class->byval_arg);
11399 csig->params [param_count - 1]->byref = 1;
11400 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11402 /* convert struct return to object */
11403 if (MONO_TYPE_ISSTRUCT (sig->ret))
11404 csig->ret = &mono_defaults.object_class->byval_arg;
11406 #ifndef DISABLE_JIT
11407 /* local 0 (temp for exception object) */
11408 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11410 /* local 1 (temp for result) */
11411 if (!MONO_TYPE_IS_VOID (sig->ret))
11412 mono_mb_add_local (mb, sig->ret);
11414 if (mono_threads_is_coop_enabled ()) {
11415 /* local 4, the local to be used when calling the reset_blocking funcs */
11416 /* tons of code hardcode 3 to be the return var */
11417 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11418 /* local 5, the local used to get a stack address for suspend funcs */
11419 coop_gc_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
11422 /* clear exception arg */
11423 mono_mb_emit_ldarg (mb, param_count - 1);
11424 mono_mb_emit_byte (mb, CEE_LDNULL);
11425 mono_mb_emit_byte (mb, CEE_STIND_REF);
11427 if (mono_threads_is_coop_enabled ()) {
11428 /* FIXME this is technically wrong as the callback itself must be executed in gc unsafe context. */
11429 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11430 mono_mb_emit_icall (mb, mono_threads_reset_blocking_start);
11431 mono_mb_emit_stloc (mb, coop_gc_var);
11435 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11436 clause->try_offset = mono_mb_get_label (mb);
11438 /* push method's args */
11439 for (i = 0; i < param_count - 1; i++) {
11443 mono_mb_emit_ldarg (mb, i);
11445 /* get the byval type of the param */
11446 klass = mono_class_from_mono_type (csig->params [i]);
11447 type = &klass->byval_arg;
11449 /* unbox struct args */
11450 if (MONO_TYPE_ISSTRUCT (type)) {
11451 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11453 /* byref args & and the "this" arg must remain a ptr.
11454 Otherwise make a copy of the value type */
11455 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11456 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11458 csig->params [i] = &mono_defaults.object_class->byval_arg;
11463 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11464 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11466 mono_mb_emit_op (mb, CEE_CALL, method);
11468 /* save result at local 1 */
11469 if (!MONO_TYPE_IS_VOID (sig->ret))
11470 mono_mb_emit_stloc (mb, 1);
11472 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11475 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11476 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11477 clause->data.catch_class = mono_defaults.object_class;
11479 clause->handler_offset = mono_mb_get_label (mb);
11481 /* store exception at local 0 */
11482 mono_mb_emit_stloc (mb, 0);
11483 mono_mb_emit_ldarg (mb, param_count - 1);
11484 mono_mb_emit_ldloc (mb, 0);
11485 mono_mb_emit_byte (mb, CEE_STIND_REF);
11486 mono_mb_emit_branch (mb, CEE_LEAVE);
11488 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11490 mono_mb_set_clauses (mb, 1, clause);
11492 mono_mb_patch_branch (mb, pos_leave);
11495 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11496 mono_mb_emit_ldloc (mb, 1);
11498 /* box the return value */
11499 if (MONO_TYPE_ISSTRUCT (sig->ret))
11500 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11503 if (mono_threads_is_coop_enabled ()) {
11504 /* XXX merge reset_blocking_end with detach */
11505 mono_mb_emit_ldloc (mb, coop_gc_var);
11506 mono_mb_emit_ldloc_addr (mb, coop_gc_dummy_local);
11507 mono_mb_emit_icall (mb, mono_threads_reset_blocking_end);
11510 mono_mb_emit_byte (mb, CEE_RET);
11513 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11520 * mono_marshal_free_dynamic_wrappers:
11522 * Free wrappers of the dynamic method METHOD.
11525 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11527 MonoImage *image = method->klass->image;
11529 g_assert (method_is_dynamic (method));
11531 /* This could be called during shutdown */
11532 if (marshal_mutex_initialized)
11533 mono_marshal_lock ();
11535 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11536 * they could be shared with other methods ?
11538 if (image->wrapper_caches.runtime_invoke_direct_cache)
11539 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11540 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11541 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11542 // FIXME: Need to clear the caches in other images as well
11543 if (image->delegate_bound_static_invoke_cache)
11544 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11546 if (marshal_mutex_initialized)
11547 mono_marshal_unlock ();