3 * Routines for marshaling complex types in P/Invoke methods.
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
10 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
12 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
23 #include "metadata/marshal.h"
24 #include "metadata/marshal-internals.h"
25 #include "metadata/method-builder.h"
26 #include "metadata/tabledefs.h"
27 #include "metadata/exception.h"
28 #include "metadata/appdomain.h"
29 #include "mono/metadata/abi-details.h"
30 #include "mono/metadata/debug-helpers.h"
31 #include "mono/metadata/threads.h"
32 #include "mono/metadata/monitor.h"
33 #include "mono/metadata/class-internals.h"
34 #include "mono/metadata/metadata-internals.h"
35 #include "mono/metadata/domain-internals.h"
36 #include "mono/metadata/gc-internals.h"
37 #include "mono/metadata/threads-types.h"
38 #include "mono/metadata/string-icalls.h"
39 #include "mono/metadata/attrdefs.h"
40 #include "mono/metadata/cominterop.h"
41 #include "mono/metadata/remoting.h"
42 #include "mono/metadata/reflection-internals.h"
43 #include "mono/metadata/threadpool.h"
44 #include "mono/metadata/handle.h"
45 #include "mono/utils/mono-counters.h"
46 #include "mono/utils/mono-tls.h"
47 #include "mono/utils/mono-memory-model.h"
48 #include "mono/utils/atomic.h"
49 #include <mono/utils/mono-threads.h>
50 #include <mono/utils/mono-threads-coop.h>
51 #include <mono/utils/mono-error-internals.h>
56 /* #define DEBUG_RUNTIME_CODE */
58 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
62 #include "mono/cil/opcode.def"
68 * This mutex protects the various marshalling related caches in MonoImage
69 * and a few other data structures static to this file.
71 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
72 * runtime locking latice. Which means it can take simple locks suck as the image lock.
74 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
75 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
76 static mono_mutex_t marshal_mutex;
77 static gboolean marshal_mutex_initialized;
79 static MonoNativeTlsKey last_error_tls_id;
81 static MonoNativeTlsKey load_type_info_tls_id;
83 static gboolean use_aot_wrappers;
85 static int class_marshal_info_count;
87 static void ftnptr_eh_callback_default (guint32 gchandle);
89 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
92 delegate_hash_table_add (MonoDelegate *d);
95 delegate_hash_table_remove (MonoDelegate *d);
98 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
101 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, int offset_of_first_child_field, MonoMarshalNative string_encoding);
104 mono_struct_delete_old (MonoClass *klass, char *ptr);
107 mono_marshal_string_to_utf16 (MonoString *s);
110 mono_marshal_string_to_utf16_copy (MonoString *s);
114 mono_string_to_utf8str (MonoString *string_obj);
117 static MonoStringBuilder *
118 mono_string_utf8_to_builder2 (char *text);
120 static MonoStringBuilder *
121 mono_string_utf16_to_builder2 (gunichar2 *text);
124 mono_string_new_len_wrapper (const char *text, guint length);
127 mono_string_from_byvalstr (const char *data, int len);
130 mono_string_from_byvalwstr (gunichar2 *data, int len);
133 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
136 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
139 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
142 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
144 static MonoAsyncResult *
145 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
148 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
151 mono_marshal_set_last_error_windows (int error);
154 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
156 static void init_safe_handle (void);
159 ves_icall_marshal_alloc (gsize size);
162 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
165 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
168 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
171 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
174 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
177 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
180 mono_delegate_to_ftnptr (MonoDelegate *delegate);
183 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
186 mono_array_to_savearray (MonoArray *array);
189 mono_array_to_lparray (MonoArray *array);
192 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
195 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
198 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
201 mono_array_to_savearray (MonoArray *array);
204 mono_array_to_lparray (MonoArray *array);
207 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
210 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
212 static MonoThreadInfo*
213 mono_icall_start (HandleStackMark *stackmark, MonoError *error);
216 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error);
218 /* Lazy class loading functions */
219 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, "System.Text", "StringBuilder");
220 static GENERATE_GET_CLASS_WITH_CACHE (date_time, "System", "DateTime");
221 static GENERATE_GET_CLASS_WITH_CACHE (fixed_buffer_attribute, "System.Runtime.CompilerServices", "FixedBufferAttribute");
222 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
223 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, "System.Runtime.InteropServices", "ICustomMarshaler");
225 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
226 static MonoMethod *sh_dangerous_add_ref;
227 static MonoMethod *sh_dangerous_release;
232 sh_dangerous_add_ref = mono_class_get_method_from_name (
233 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
234 sh_dangerous_release = mono_class_get_method_from_name (
235 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
239 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
241 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
243 mono_register_jit_icall (func, name, sig, no_wrapper);
247 register_icall_no_wrapper (gpointer func, const char *name, const char *sigstr)
249 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
251 mono_register_jit_icall (func, name, sig, TRUE);
255 mono_signature_no_pinvoke (MonoMethod *method)
257 MonoMethodSignature *sig = mono_method_signature (method);
259 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
260 sig->pinvoke = FALSE;
267 mono_marshal_init_tls (void)
269 mono_native_tls_alloc (&last_error_tls_id, NULL);
270 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
274 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
277 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
278 mono_error_set_pending_exception (&error);
283 ves_icall_mono_string_from_utf16 (gunichar2 *data)
286 MonoString *result = mono_string_from_utf16_checked (data, &error);
287 mono_error_set_pending_exception (&error);
292 ves_icall_mono_string_to_utf8 (MonoString *str)
295 char *result = mono_string_to_utf8_checked (str, &error);
296 mono_error_set_pending_exception (&error);
301 ves_icall_string_new_wrapper (const char *text)
305 MonoString *res = mono_string_new_checked (mono_domain_get (), text, &error);
306 mono_error_set_pending_exception (&error);
314 mono_marshal_init (void)
316 static gboolean module_initialized = FALSE;
318 if (!module_initialized) {
319 module_initialized = TRUE;
320 mono_os_mutex_init_recursive (&marshal_mutex);
321 marshal_mutex_initialized = TRUE;
323 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
324 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
325 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
326 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
327 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
328 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
329 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
330 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
331 register_icall (ves_icall_string_new_wrapper, "ves_icall_string_new_wrapper", "obj ptr", FALSE);
332 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
333 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
334 register_icall (mono_string_to_utf8str, "mono_string_to_utf8str", "ptr obj", FALSE);
335 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
336 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
337 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
338 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
339 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
340 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
341 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
342 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
343 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
344 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
345 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
346 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
347 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
348 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
349 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr ptr", FALSE);
350 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
351 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
352 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
353 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
354 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
355 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
356 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
357 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
358 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
359 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
360 register_icall (g_free, "g_free", "void ptr", FALSE);
361 register_icall_no_wrapper (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr");
362 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
363 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
364 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
365 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
366 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
367 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
368 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
369 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
370 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
371 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
372 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
373 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
374 register_icall (mono_icall_start, "mono_icall_start", "ptr ptr ptr", TRUE);
375 register_icall (mono_icall_end, "mono_icall_end", "void ptr ptr ptr", TRUE);
376 register_icall (mono_handle_new_full, "mono_handle_new_full", "ptr ptr bool", TRUE);
378 mono_cominterop_init ();
379 mono_remoting_init ();
381 mono_counters_register ("MonoClass::class_marshal_info_count count",
382 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_marshal_info_count);
388 mono_marshal_cleanup (void)
390 mono_cominterop_cleanup ();
392 mono_native_tls_free (load_type_info_tls_id);
393 mono_native_tls_free (last_error_tls_id);
394 mono_os_mutex_destroy (&marshal_mutex);
395 marshal_mutex_initialized = FALSE;
399 mono_marshal_lock_internal (void)
401 mono_marshal_lock ();
405 mono_marshal_unlock_internal (void)
407 mono_marshal_unlock ();
410 /* This is a JIT icall, it sets the pending exception and return NULL on error */
412 mono_delegate_to_ftnptr (MonoDelegate *delegate)
415 MonoMethod *method, *wrapper;
417 uint32_t target_handle = 0;
422 if (delegate->delegate_trampoline)
423 return delegate->delegate_trampoline;
425 klass = ((MonoObject *)delegate)->vtable->klass;
426 g_assert (klass->delegate);
428 method = delegate->method;
429 if (delegate->method_is_virtual)
430 method = mono_object_get_virtual_method (delegate->target, method);
432 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
433 const char *exc_class, *exc_arg;
436 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
438 g_assert (exc_class);
439 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
445 if (delegate->target) {
446 /* Produce a location which can be embedded in JITted code */
447 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
450 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle, &error);
454 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
458 // Add the delegate to the delegate hash table
459 delegate_hash_table_add (delegate);
461 /* when the object is collected, collect the dynamic method, too */
462 mono_object_register_finalizer ((MonoObject*)delegate);
464 return delegate->delegate_trampoline;
467 if (target_handle != 0)
468 mono_gchandle_free (target_handle);
469 mono_error_set_pending_exception (&error);
474 * this hash table maps from a delegate trampoline object to a weak reference
475 * of the delegate. As an optimizations with a non-moving GC we store the
476 * object pointer itself, otherwise we use a GC handle.
478 static GHashTable *delegate_hash_table;
481 delegate_hash_table_new (void) {
482 return g_hash_table_new (NULL, NULL);
486 delegate_hash_table_remove (MonoDelegate *d)
488 guint32 gchandle = 0;
490 mono_marshal_lock ();
491 if (delegate_hash_table == NULL)
492 delegate_hash_table = delegate_hash_table_new ();
493 if (mono_gc_is_moving ())
494 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
495 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
496 mono_marshal_unlock ();
497 if (gchandle && mono_gc_is_moving ())
498 mono_gchandle_free (gchandle);
502 delegate_hash_table_add (MonoDelegate *d)
505 guint32 old_gchandle;
507 mono_marshal_lock ();
508 if (delegate_hash_table == NULL)
509 delegate_hash_table = delegate_hash_table_new ();
510 if (mono_gc_is_moving ()) {
511 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
512 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
513 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
515 mono_gchandle_free (old_gchandle);
517 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
519 mono_marshal_unlock ();
523 * mono_marshal_use_aot_wrappers:
525 * Instructs this module to use AOT compatible wrappers.
528 mono_marshal_use_aot_wrappers (gboolean use)
530 use_aot_wrappers = use;
534 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
537 MonoCustomAttrInfo *cinfo;
538 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
540 /* The attribute is only available in Net 2.0 */
541 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
543 * The pinvoke attributes are stored in a real custom attribute so we have to
546 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
547 if (!mono_error_ok (&error)) {
548 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
549 mono_error_cleanup (&error);
551 if (cinfo && !mono_runtime_get_no_exec ()) {
552 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
554 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
556 if (!mono_error_ok (&error)) {
557 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
558 mono_error_cleanup (&error);
562 mono_custom_attrs_free (cinfo);
567 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
569 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
578 mono_marshal_lock ();
579 if (delegate_hash_table == NULL)
580 delegate_hash_table = delegate_hash_table_new ();
582 if (mono_gc_is_moving ()) {
583 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
584 mono_marshal_unlock ();
586 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
590 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
591 mono_marshal_unlock ();
594 /* This is a native function, so construct a delegate for it */
595 MonoMethodSignature *sig;
597 MonoMarshalSpec **mspecs;
598 MonoMethod *invoke = mono_get_delegate_invoke (klass);
599 MonoMethodPInvoke piinfo;
600 MonoObject *this_obj;
603 if (use_aot_wrappers) {
604 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
605 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
606 if (!is_ok (&error)) {
607 mono_error_set_pending_exception (&error);
611 memset (&piinfo, 0, sizeof (piinfo));
612 parse_unmanaged_function_pointer_attr (klass, &piinfo);
614 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
615 mono_method_get_marshal_info (invoke, mspecs);
616 /* Freed below so don't alloc from mempool */
617 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
620 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
623 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
625 mono_metadata_free_marshal_spec (mspecs [i]);
630 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
631 if (!mono_error_ok (&error)) {
632 mono_error_set_pending_exception (&error);
635 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
636 if (mono_error_set_pending_exception (&error))
638 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
639 if (mono_error_set_pending_exception (&error))
643 if (d->object.vtable->domain != mono_domain_get ()) {
644 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
652 mono_delegate_free_ftnptr (MonoDelegate *delegate)
657 delegate_hash_table_remove (delegate);
659 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
661 if (!delegate->target) {
662 /* The wrapper method is shared between delegates -> no need to free it */
671 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
674 method = mono_jit_info_get_method (ji);
675 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
677 /*the target gchandle is the first entry after size and the wrapper itself.*/
678 gchandle = GPOINTER_TO_UINT (method_data [2]);
681 mono_gchandle_free (gchandle);
683 mono_runtime_free_method (mono_object_domain (delegate), method);
687 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
689 mono_string_from_byvalstr (const char *data, int max_len)
692 MonoDomain *domain = mono_domain_get ();
698 while (len < max_len - 1 && data [len])
701 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
702 mono_error_set_pending_exception (&error);
706 /* This is a JIT icall, it sets the pending exception and return NULL on error */
708 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
711 MonoString *res = NULL;
712 MonoDomain *domain = mono_domain_get ();
718 while (data [len]) len++;
720 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
721 if (!mono_error_ok (&error)) {
722 mono_error_set_pending_exception (&error);
729 mono_array_to_savearray (MonoArray *array)
734 g_assert_not_reached ();
739 mono_array_to_lparray (MonoArray *array)
742 gpointer *nativeArray = NULL;
743 int nativeArraySize = 0;
753 klass = array->obj.vtable->klass;
755 switch (klass->element_class->byval_arg.type) {
757 g_assert_not_reached ();
759 case MONO_TYPE_CLASS:
760 nativeArraySize = array->max_length;
761 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
762 for(i = 0; i < nativeArraySize; ++i)
763 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
766 case MONO_TYPE_BOOLEAN:
779 case MONO_TYPE_VALUETYPE:
783 case MONO_TYPE_GENERICINST:
784 case MONO_TYPE_OBJECT:
785 case MONO_TYPE_ARRAY:
786 case MONO_TYPE_SZARRAY:
787 case MONO_TYPE_STRING:
789 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
790 g_assert_not_reached ();
793 return array->vector;
797 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
808 klass = array->obj.vtable->klass;
810 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
811 for(i = 0; i < array->max_length; ++i)
812 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
813 g_free (nativeArray);
819 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
821 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
823 if (elclass == mono_defaults.byte_class) {
824 GError *error = NULL;
828 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
831 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
835 g_error_free (error);
838 g_assert_not_reached ();
842 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
844 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
847 /* This is a JIT icall, it sets the pending exception and returns on error */
849 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
851 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
853 if (elclass == mono_defaults.byte_class) {
855 GError *error = NULL;
857 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
859 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
860 g_error_free (error);
864 memcpy (native_arr, as, MIN (strlen (as), elnum));
867 g_assert_not_reached ();
872 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
874 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
877 static MonoStringBuilder *
878 mono_string_builder_new (int starting_string_length)
880 static MonoClass *string_builder_class;
881 static MonoMethod *sb_ctor;
882 static void *args [1];
885 int initial_len = starting_string_length;
891 MonoMethodDesc *desc;
894 string_builder_class = mono_class_get_string_builder_class ();
895 g_assert (string_builder_class);
896 desc = mono_method_desc_new (":.ctor(int)", FALSE);
897 m = mono_method_desc_search_in_class (desc, string_builder_class);
899 mono_method_desc_free (desc);
900 mono_memory_barrier ();
904 // We make a new array in the _to_builder function, so this
905 // array will always be garbage collected.
906 args [0] = &initial_len;
908 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
909 mono_error_assert_ok (&error);
912 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
913 g_assert (exc == NULL);
914 mono_error_assert_ok (&error);
916 g_assert (sb->chunkChars->max_length >= initial_len);
922 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
924 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
925 gunichar2 *charSrc = (gunichar2 *)text;
926 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
928 sb->chunkLength = string_len;
934 mono_string_utf16_to_builder2 (gunichar2 *text)
940 for (len = 0; text [len] != 0; ++len);
942 MonoStringBuilder *sb = mono_string_builder_new (len);
943 mono_string_utf16_to_builder (sb, text);
949 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
954 GError *error = NULL;
956 gunichar2* ut = g_utf8_to_utf16 (text, strlen (text), NULL, &copied, &error);
957 int capacity = mono_string_builder_capacity (sb);
959 if (copied > capacity)
963 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
964 mono_string_utf16_to_builder_copy (sb, ut, copied);
966 g_error_free (error);
972 mono_string_utf8_to_builder2 (char *text)
977 int len = strlen (text);
978 MonoStringBuilder *sb = mono_string_builder_new (len);
979 mono_string_utf8_to_builder (sb, text);
985 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
991 for (len = 0; text [len] != 0; ++len);
993 if (len > mono_string_builder_capacity (sb))
994 len = mono_string_builder_capacity (sb);
996 mono_string_utf16_to_builder_copy (sb, text, len);
1000 * mono_string_builder_to_utf8:
1001 * \param sb the string builder
1003 * Converts to utf8 the contents of the \c MonoStringBuilder .
1005 * \returns a utf8 string with the contents of the \c StringBuilder .
1007 * The return value must be released with mono_marshal_free.
1009 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1012 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
1015 GError *gerror = NULL;
1020 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
1022 guint str_len = mono_string_builder_string_length (sb);
1024 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
1027 g_error_free (gerror);
1028 mono_marshal_free (str_utf16);
1029 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1032 guint len = mono_string_builder_capacity (sb) + 1;
1033 gchar *res = (gchar *)mono_marshal_alloc (MAX (byte_count+1, len * sizeof (gchar)), &error);
1034 if (!mono_error_ok (&error)) {
1035 mono_marshal_free (str_utf16);
1037 mono_error_set_pending_exception (&error);
1041 memcpy (res, tmp, byte_count);
1042 res[byte_count] = '\0';
1044 mono_marshal_free (str_utf16);
1051 * mono_string_builder_to_utf16:
1052 * \param sb the string builder
1054 * Converts to utf16 the contents of the \c MonoStringBuilder .
1056 * Returns: a utf16 string with the contents of the \c StringBuilder .
1058 * The return value must be released with mono_marshal_free.
1060 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1063 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1070 g_assert (sb->chunkChars);
1072 guint len = mono_string_builder_capacity (sb);
1077 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1078 if (!mono_error_ok (&error)) {
1079 mono_error_set_pending_exception (&error);
1088 MonoStringBuilder* chunk = sb;
1090 if (chunk->chunkLength > 0) {
1091 // Check that we will not overrun our boundaries.
1092 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1094 if (chunk->chunkLength <= len) {
1095 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1097 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1100 len -= chunk->chunkLength;
1102 chunk = chunk->chunkPrevious;
1103 } while (chunk != NULL);
1109 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1111 mono_string_to_utf8str (MonoString *s)
1114 char *result = mono_string_to_utf8_checked (s, &error);
1115 mono_error_set_pending_exception (&error);
1121 mono_string_to_ansibstr (MonoString *string_obj)
1123 g_error ("UnmanagedMarshal.BStr is not implemented.");
1128 * mono_string_to_byvalstr:
1129 * \param dst Where to store the null-terminated utf8 decoded string.
1130 * \param src the \c MonoString to copy.
1131 * \param size the maximum number of bytes to copy.
1133 * Copies the \c MonoString pointed to by \p src as a utf8 string
1134 * into \p dst, it copies at most \p size bytes into the destination.
1137 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1143 g_assert (dst != NULL);
1144 g_assert (size > 0);
1146 memset (dst, 0, size);
1150 s = mono_string_to_utf8_checked (src, &error);
1151 if (mono_error_set_pending_exception (&error))
1153 len = MIN (size, strlen (s));
1156 memcpy (dst, s, len);
1161 * mono_string_to_byvalwstr:
1162 * \param dst Where to store the null-terminated utf16 decoded string.
1163 * \param src the \c MonoString to copy.
1164 * \param size the maximum number of wide characters to copy (each consumes 2 bytes)
1166 * Copies the \c MonoString pointed to by \p src as a utf16 string into
1167 * \p dst, it copies at most \p size bytes into the destination (including
1168 * a terminating 16-bit zero terminator).
1171 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1175 g_assert (dst != NULL);
1176 g_assert (size > 1);
1179 memset (dst, 0, size * 2);
1183 len = MIN (size, (mono_string_length (src)));
1184 memcpy (dst, mono_string_chars (src), len * 2);
1185 if (size <= mono_string_length (src))
1187 *((gunichar2 *) dst + len) = 0;
1190 /* this is an icall, it sets the pending exception and returns NULL on error */
1192 mono_string_new_len_wrapper (const char *text, guint length)
1195 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1196 mono_error_set_pending_exception (&error);
1203 * mono_mb_emit_exception_marshal_directive:
1205 * This function assumes ownership of MSG, which should be malloc-ed.
1208 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1213 s = mono_image_strdup (mb->method->klass->image, msg);
1218 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1221 #endif /* !DISABLE_JIT */
1224 mono_type_to_ldind (MonoType *type)
1230 switch (type->type) {
1232 return CEE_LDIND_I1;
1234 case MONO_TYPE_BOOLEAN:
1235 return CEE_LDIND_U1;
1237 return CEE_LDIND_I2;
1239 case MONO_TYPE_CHAR:
1240 return CEE_LDIND_U2;
1242 return CEE_LDIND_I4;
1244 return CEE_LDIND_U4;
1248 case MONO_TYPE_FNPTR:
1250 case MONO_TYPE_CLASS:
1251 case MONO_TYPE_STRING:
1252 case MONO_TYPE_OBJECT:
1253 case MONO_TYPE_SZARRAY:
1254 case MONO_TYPE_ARRAY:
1255 return CEE_LDIND_REF;
1258 return CEE_LDIND_I8;
1260 return CEE_LDIND_R4;
1262 return CEE_LDIND_R8;
1263 case MONO_TYPE_VALUETYPE:
1264 if (type->data.klass->enumtype) {
1265 type = mono_class_enum_basetype (type->data.klass);
1269 case MONO_TYPE_TYPEDBYREF:
1271 case MONO_TYPE_GENERICINST:
1272 type = &type->data.generic_class->container_class->byval_arg;
1275 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1281 mono_type_to_stind (MonoType *type)
1284 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1288 switch (type->type) {
1291 case MONO_TYPE_BOOLEAN:
1292 return CEE_STIND_I1;
1295 case MONO_TYPE_CHAR:
1296 return CEE_STIND_I2;
1299 return CEE_STIND_I4;
1303 case MONO_TYPE_FNPTR:
1305 case MONO_TYPE_CLASS:
1306 case MONO_TYPE_STRING:
1307 case MONO_TYPE_OBJECT:
1308 case MONO_TYPE_SZARRAY:
1309 case MONO_TYPE_ARRAY:
1310 return CEE_STIND_REF;
1313 return CEE_STIND_I8;
1315 return CEE_STIND_R4;
1317 return CEE_STIND_R8;
1318 case MONO_TYPE_VALUETYPE:
1319 if (type->data.klass->enumtype) {
1320 type = mono_class_enum_basetype (type->data.klass);
1324 case MONO_TYPE_TYPEDBYREF:
1326 case MONO_TYPE_GENERICINST:
1327 type = &type->data.generic_class->container_class->byval_arg;
1330 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1338 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1341 case MONO_MARSHAL_CONV_BOOL_I4:
1342 mono_mb_emit_ldloc (mb, 1);
1343 mono_mb_emit_ldloc (mb, 0);
1344 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1345 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1346 mono_mb_emit_byte (mb, 3);
1347 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1348 mono_mb_emit_byte (mb, CEE_BR_S);
1349 mono_mb_emit_byte (mb, 1);
1350 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1351 mono_mb_emit_byte (mb, CEE_STIND_I1);
1353 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1354 mono_mb_emit_ldloc (mb, 1);
1355 mono_mb_emit_ldloc (mb, 0);
1356 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1357 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1358 mono_mb_emit_byte (mb, 3);
1359 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1360 mono_mb_emit_byte (mb, CEE_BR_S);
1361 mono_mb_emit_byte (mb, 1);
1362 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1363 mono_mb_emit_byte (mb, CEE_STIND_I1);
1365 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1366 MonoClass *eklass = NULL;
1369 if (type->type == MONO_TYPE_SZARRAY) {
1370 eklass = type->data.klass;
1372 g_assert_not_reached ();
1375 esize = mono_class_native_size (eklass, NULL);
1377 /* create a new array */
1378 mono_mb_emit_ldloc (mb, 1);
1379 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1380 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1381 mono_mb_emit_byte (mb, CEE_STIND_REF);
1383 if (eklass->blittable) {
1384 /* copy the elements */
1385 mono_mb_emit_ldloc (mb, 1);
1386 mono_mb_emit_byte (mb, CEE_LDIND_I);
1387 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1388 mono_mb_emit_byte (mb, CEE_ADD);
1389 mono_mb_emit_ldloc (mb, 0);
1390 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1391 mono_mb_emit_byte (mb, CEE_PREFIX1);
1392 mono_mb_emit_byte (mb, CEE_CPBLK);
1395 int array_var, src_var, dst_var, index_var;
1396 guint32 label2, label3;
1398 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1399 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1400 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1403 mono_mb_emit_ldloc (mb, 1);
1404 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1405 mono_mb_emit_stloc (mb, array_var);
1407 /* save the old src pointer */
1408 mono_mb_emit_ldloc (mb, 0);
1409 mono_mb_emit_stloc (mb, src_var);
1410 /* save the old dst pointer */
1411 mono_mb_emit_ldloc (mb, 1);
1412 mono_mb_emit_stloc (mb, dst_var);
1414 /* Emit marshalling loop */
1415 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1416 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1417 mono_mb_emit_stloc (mb, index_var);
1420 label2 = mono_mb_get_label (mb);
1421 mono_mb_emit_ldloc (mb, index_var);
1422 mono_mb_emit_ldloc (mb, array_var);
1423 mono_mb_emit_byte (mb, CEE_LDLEN);
1424 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1426 /* src is already set */
1429 mono_mb_emit_ldloc (mb, array_var);
1430 mono_mb_emit_ldloc (mb, index_var);
1431 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1432 mono_mb_emit_stloc (mb, 1);
1434 /* Do the conversion */
1435 emit_struct_conv (mb, eklass, TRUE);
1438 mono_mb_emit_add_to_local (mb, index_var, 1);
1440 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1442 mono_mb_patch_branch (mb, label3);
1444 /* restore the old src pointer */
1445 mono_mb_emit_ldloc (mb, src_var);
1446 mono_mb_emit_stloc (mb, 0);
1447 /* restore the old dst pointer */
1448 mono_mb_emit_ldloc (mb, dst_var);
1449 mono_mb_emit_stloc (mb, 1);
1453 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1454 MonoClass *eclass = mono_defaults.char_class;
1456 /* create a new array */
1457 mono_mb_emit_ldloc (mb, 1);
1458 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1459 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1460 mono_mb_emit_byte (mb, CEE_STIND_REF);
1462 mono_mb_emit_ldloc (mb, 1);
1463 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1464 mono_mb_emit_ldloc (mb, 0);
1465 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1466 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1469 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1470 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1471 mono_mb_emit_ldloc (mb, 1);
1472 mono_mb_emit_ldloc (mb, 0);
1473 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1474 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1476 mono_mb_emit_ldloc (mb, 1);
1477 mono_mb_emit_ldloc (mb, 0);
1478 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1480 mono_mb_emit_byte (mb, CEE_STIND_REF);
1482 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1483 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1484 mono_mb_emit_ldloc (mb, 1);
1485 mono_mb_emit_ldloc (mb, 0);
1486 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1487 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1489 mono_mb_emit_ldloc (mb, 1);
1490 mono_mb_emit_ldloc (mb, 0);
1491 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1493 mono_mb_emit_byte (mb, CEE_STIND_REF);
1495 case MONO_MARSHAL_CONV_STR_LPTSTR:
1496 mono_mb_emit_ldloc (mb, 1);
1497 mono_mb_emit_ldloc (mb, 0);
1498 mono_mb_emit_byte (mb, CEE_LDIND_I);
1500 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1502 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1504 mono_mb_emit_byte (mb, CEE_STIND_REF);
1507 // In Mono historically LPSTR was treated as a UTF8STR
1508 case MONO_MARSHAL_CONV_STR_LPSTR:
1509 case MONO_MARSHAL_CONV_STR_UTF8STR:
1510 mono_mb_emit_ldloc (mb, 1);
1511 mono_mb_emit_ldloc (mb, 0);
1512 mono_mb_emit_byte (mb, CEE_LDIND_I);
1513 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1514 mono_mb_emit_byte (mb, CEE_STIND_REF);
1516 case MONO_MARSHAL_CONV_STR_LPWSTR:
1517 mono_mb_emit_ldloc (mb, 1);
1518 mono_mb_emit_ldloc (mb, 0);
1519 mono_mb_emit_byte (mb, CEE_LDIND_I);
1520 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1521 mono_mb_emit_byte (mb, CEE_STIND_REF);
1523 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1524 MonoClass *klass = mono_class_from_mono_type (type);
1525 int src_var, dst_var;
1527 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1528 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1530 /* *dst = new object */
1531 mono_mb_emit_ldloc (mb, 1);
1532 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1533 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1534 mono_mb_emit_byte (mb, CEE_STIND_REF);
1536 /* save the old src pointer */
1537 mono_mb_emit_ldloc (mb, 0);
1538 mono_mb_emit_stloc (mb, src_var);
1539 /* save the old dst pointer */
1540 mono_mb_emit_ldloc (mb, 1);
1541 mono_mb_emit_stloc (mb, dst_var);
1543 /* dst = pointer to newly created object data */
1544 mono_mb_emit_ldloc (mb, 1);
1545 mono_mb_emit_byte (mb, CEE_LDIND_I);
1546 mono_mb_emit_icon (mb, sizeof (MonoObject));
1547 mono_mb_emit_byte (mb, CEE_ADD);
1548 mono_mb_emit_stloc (mb, 1);
1550 emit_struct_conv (mb, klass, TRUE);
1552 /* restore the old src pointer */
1553 mono_mb_emit_ldloc (mb, src_var);
1554 mono_mb_emit_stloc (mb, 0);
1555 /* restore the old dst pointer */
1556 mono_mb_emit_ldloc (mb, dst_var);
1557 mono_mb_emit_stloc (mb, 1);
1560 case MONO_MARSHAL_CONV_DEL_FTN: {
1561 MonoClass *klass = mono_class_from_mono_type (type);
1563 mono_mb_emit_ldloc (mb, 1);
1564 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1565 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1566 mono_mb_emit_ldloc (mb, 0);
1567 mono_mb_emit_byte (mb, CEE_LDIND_I);
1568 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1569 mono_mb_emit_byte (mb, CEE_STIND_REF);
1572 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1573 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1577 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1578 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1579 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1580 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1582 #endif /* DISABLE_COM */
1584 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1586 * Passing SafeHandles as ref does not allow the unmanaged code
1587 * to change the SafeHandle value. If the value is changed,
1588 * we should issue a diagnostic exception (NotSupportedException)
1589 * that informs the user that changes to handles in unmanaged code
1592 * Since we currently have no access to the original
1593 * SafeHandle that was used during the marshalling,
1594 * for now we just ignore this, and ignore/discard any
1595 * changes that might have happened to the handle.
1600 case MONO_MARSHAL_CONV_HANDLEREF: {
1602 * Passing HandleRefs in a struct that is ref()ed does not
1603 * copy the values back to the HandleRef
1608 case MONO_MARSHAL_CONV_STR_BSTR:
1609 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1610 case MONO_MARSHAL_CONV_STR_TBSTR:
1611 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1613 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1615 mono_mb_emit_exception_marshal_directive (mb, msg);
1622 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1625 if (!ind_store_type)
1626 ind_store_type = &dummy;
1627 *ind_store_type = CEE_STIND_I;
1629 case MONO_MARSHAL_CONV_STR_LPWSTR:
1630 return mono_marshal_string_to_utf16;
1631 case MONO_MARSHAL_CONV_LPWSTR_STR:
1632 *ind_store_type = CEE_STIND_REF;
1633 return ves_icall_mono_string_from_utf16;
1634 case MONO_MARSHAL_CONV_LPTSTR_STR:
1635 *ind_store_type = CEE_STIND_REF;
1636 return ves_icall_string_new_wrapper;
1637 case MONO_MARSHAL_CONV_UTF8STR_STR:
1638 case MONO_MARSHAL_CONV_LPSTR_STR:
1639 *ind_store_type = CEE_STIND_REF;
1640 return ves_icall_string_new_wrapper;
1641 case MONO_MARSHAL_CONV_STR_LPTSTR:
1643 return mono_marshal_string_to_utf16;
1645 return mono_string_to_utf8str;
1647 // In Mono historically LPSTR was treated as a UTF8STR
1648 case MONO_MARSHAL_CONV_STR_UTF8STR:
1649 case MONO_MARSHAL_CONV_STR_LPSTR:
1650 return mono_string_to_utf8str;
1651 case MONO_MARSHAL_CONV_STR_BSTR:
1652 return mono_string_to_bstr;
1653 case MONO_MARSHAL_CONV_BSTR_STR:
1654 *ind_store_type = CEE_STIND_REF;
1655 return mono_string_from_bstr_icall;
1656 case MONO_MARSHAL_CONV_STR_TBSTR:
1657 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1658 return mono_string_to_ansibstr;
1659 case MONO_MARSHAL_CONV_SB_UTF8STR:
1660 case MONO_MARSHAL_CONV_SB_LPSTR:
1661 return mono_string_builder_to_utf8;
1662 case MONO_MARSHAL_CONV_SB_LPTSTR:
1664 return mono_string_builder_to_utf16;
1666 return mono_string_builder_to_utf8;
1668 case MONO_MARSHAL_CONV_SB_LPWSTR:
1669 return mono_string_builder_to_utf16;
1670 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1671 return mono_array_to_savearray;
1672 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1673 return mono_array_to_lparray;
1674 case MONO_MARSHAL_FREE_LPARRAY:
1675 return mono_free_lparray;
1676 case MONO_MARSHAL_CONV_DEL_FTN:
1677 return mono_delegate_to_ftnptr;
1678 case MONO_MARSHAL_CONV_FTN_DEL:
1679 *ind_store_type = CEE_STIND_REF;
1680 return mono_ftnptr_to_delegate;
1681 case MONO_MARSHAL_CONV_UTF8STR_SB:
1682 case MONO_MARSHAL_CONV_LPSTR_SB:
1683 *ind_store_type = CEE_STIND_REF;
1684 return mono_string_utf8_to_builder;
1685 case MONO_MARSHAL_CONV_LPTSTR_SB:
1686 *ind_store_type = CEE_STIND_REF;
1688 return mono_string_utf16_to_builder;
1690 return mono_string_utf8_to_builder;
1692 case MONO_MARSHAL_CONV_LPWSTR_SB:
1693 *ind_store_type = CEE_STIND_REF;
1694 return mono_string_utf16_to_builder;
1695 case MONO_MARSHAL_FREE_ARRAY:
1696 return mono_marshal_free_array;
1697 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1698 return mono_string_to_byvalstr;
1699 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1700 return mono_string_to_byvalwstr;
1702 g_assert_not_reached ();
1709 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1715 case MONO_MARSHAL_CONV_BOOL_I4:
1716 mono_mb_emit_ldloc (mb, 1);
1717 mono_mb_emit_ldloc (mb, 0);
1718 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1719 mono_mb_emit_byte (mb, CEE_STIND_I4);
1721 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1722 mono_mb_emit_ldloc (mb, 1);
1723 mono_mb_emit_ldloc (mb, 0);
1724 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1725 mono_mb_emit_byte (mb, CEE_NEG);
1726 mono_mb_emit_byte (mb, CEE_STIND_I2);
1728 // In Mono historically LPSTR was treated as a UTF8STR
1729 case MONO_MARSHAL_CONV_STR_UTF8STR:
1730 case MONO_MARSHAL_CONV_STR_LPWSTR:
1731 case MONO_MARSHAL_CONV_STR_LPSTR:
1732 case MONO_MARSHAL_CONV_STR_LPTSTR:
1733 case MONO_MARSHAL_CONV_STR_BSTR:
1734 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1735 case MONO_MARSHAL_CONV_STR_TBSTR: {
1738 /* free space if free == true */
1739 mono_mb_emit_ldloc (mb, 2);
1740 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1741 mono_mb_emit_ldloc (mb, 1);
1742 mono_mb_emit_byte (mb, CEE_LDIND_I);
1743 mono_mb_emit_icall (mb, g_free);
1744 mono_mb_patch_short_branch (mb, pos);
1746 mono_mb_emit_ldloc (mb, 1);
1747 mono_mb_emit_ldloc (mb, 0);
1748 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1749 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1750 mono_mb_emit_byte (mb, stind_op);
1753 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1754 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1755 case MONO_MARSHAL_CONV_DEL_FTN:
1756 mono_mb_emit_ldloc (mb, 1);
1757 mono_mb_emit_ldloc (mb, 0);
1758 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1759 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1760 mono_mb_emit_byte (mb, stind_op);
1762 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1763 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1766 mono_mb_emit_ldloc (mb, 1); /* dst */
1767 mono_mb_emit_ldloc (mb, 0);
1768 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1769 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1770 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1773 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1774 MonoClass *eklass = NULL;
1777 if (type->type == MONO_TYPE_SZARRAY) {
1778 eklass = type->data.klass;
1780 g_assert_not_reached ();
1783 if (eklass->valuetype)
1784 esize = mono_class_native_size (eklass, NULL);
1786 esize = sizeof (gpointer);
1788 mono_mb_emit_ldloc (mb, 0);
1789 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1790 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1792 if (eklass->blittable) {
1793 mono_mb_emit_ldloc (mb, 1);
1794 mono_mb_emit_ldloc (mb, 0);
1795 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1796 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1797 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1798 mono_mb_emit_byte (mb, CEE_PREFIX1);
1799 mono_mb_emit_byte (mb, CEE_CPBLK);
1801 int array_var, src_var, dst_var, index_var;
1802 guint32 label2, label3;
1804 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1805 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1806 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1809 mono_mb_emit_ldloc (mb, 0);
1810 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1811 mono_mb_emit_stloc (mb, array_var);
1813 /* save the old src pointer */
1814 mono_mb_emit_ldloc (mb, 0);
1815 mono_mb_emit_stloc (mb, src_var);
1816 /* save the old dst pointer */
1817 mono_mb_emit_ldloc (mb, 1);
1818 mono_mb_emit_stloc (mb, dst_var);
1820 /* Emit marshalling loop */
1821 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1822 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1823 mono_mb_emit_stloc (mb, index_var);
1826 label2 = mono_mb_get_label (mb);
1827 mono_mb_emit_ldloc (mb, index_var);
1828 mono_mb_emit_ldloc (mb, array_var);
1829 mono_mb_emit_byte (mb, CEE_LDLEN);
1830 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1833 mono_mb_emit_ldloc (mb, array_var);
1834 mono_mb_emit_ldloc (mb, index_var);
1835 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1836 mono_mb_emit_stloc (mb, 0);
1838 /* dst is already set */
1840 /* Do the conversion */
1841 emit_struct_conv (mb, eklass, FALSE);
1844 mono_mb_emit_add_to_local (mb, index_var, 1);
1846 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1848 mono_mb_patch_branch (mb, label3);
1850 /* restore the old src pointer */
1851 mono_mb_emit_ldloc (mb, src_var);
1852 mono_mb_emit_stloc (mb, 0);
1853 /* restore the old dst pointer */
1854 mono_mb_emit_ldloc (mb, dst_var);
1855 mono_mb_emit_stloc (mb, 1);
1858 mono_mb_patch_branch (mb, pos);
1861 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1862 mono_mb_emit_ldloc (mb, 0);
1863 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1864 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1866 mono_mb_emit_ldloc (mb, 1);
1867 mono_mb_emit_ldloc (mb, 0);
1868 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1869 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1870 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1871 mono_mb_patch_short_branch (mb, pos);
1874 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1875 int src_var, dst_var;
1877 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1878 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1880 mono_mb_emit_ldloc (mb, 0);
1881 mono_mb_emit_byte (mb, CEE_LDIND_I);
1882 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1884 /* save the old src pointer */
1885 mono_mb_emit_ldloc (mb, 0);
1886 mono_mb_emit_stloc (mb, src_var);
1887 /* save the old dst pointer */
1888 mono_mb_emit_ldloc (mb, 1);
1889 mono_mb_emit_stloc (mb, dst_var);
1891 /* src = pointer to object data */
1892 mono_mb_emit_ldloc (mb, 0);
1893 mono_mb_emit_byte (mb, CEE_LDIND_I);
1894 mono_mb_emit_icon (mb, sizeof (MonoObject));
1895 mono_mb_emit_byte (mb, CEE_ADD);
1896 mono_mb_emit_stloc (mb, 0);
1898 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1900 /* restore the old src pointer */
1901 mono_mb_emit_ldloc (mb, src_var);
1902 mono_mb_emit_stloc (mb, 0);
1903 /* restore the old dst pointer */
1904 mono_mb_emit_ldloc (mb, dst_var);
1905 mono_mb_emit_stloc (mb, 1);
1907 mono_mb_patch_branch (mb, pos);
1912 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1913 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1914 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1915 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1917 #endif /* DISABLE_COM */
1919 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1922 mono_mb_emit_ldloc (mb, 0);
1923 mono_mb_emit_byte (mb, CEE_LDIND_I);
1924 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1925 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1926 mono_mb_patch_branch (mb, pos);
1928 /* Pull the handle field from SafeHandle */
1929 mono_mb_emit_ldloc (mb, 1);
1930 mono_mb_emit_ldloc (mb, 0);
1931 mono_mb_emit_byte (mb, CEE_LDIND_I);
1932 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1933 mono_mb_emit_byte (mb, CEE_LDIND_I);
1934 mono_mb_emit_byte (mb, CEE_STIND_I);
1938 case MONO_MARSHAL_CONV_HANDLEREF: {
1939 mono_mb_emit_ldloc (mb, 1);
1940 mono_mb_emit_ldloc (mb, 0);
1941 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1942 mono_mb_emit_byte (mb, CEE_ADD);
1943 mono_mb_emit_byte (mb, CEE_LDIND_I);
1944 mono_mb_emit_byte (mb, CEE_STIND_I);
1949 g_error ("marshalling conversion %d not implemented", conv);
1955 offset_of_first_nonstatic_field (MonoClass *klass)
1958 int fcount = mono_class_get_field_count (klass);
1959 mono_class_setup_fields (klass);
1960 for (i = 0; i < fcount; i++) {
1961 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
1962 return klass->fields[i].offset - sizeof (MonoObject);
1969 get_fixed_buffer_attr (MonoClassField *field, MonoType **out_etype, int *out_len)
1972 MonoCustomAttrInfo *cinfo;
1973 MonoCustomAttrEntry *attr;
1976 cinfo = mono_custom_attrs_from_field_checked (field->parent, field, &error);
1977 if (!is_ok (&error))
1981 for (aindex = 0; aindex < cinfo->num_attrs; ++aindex) {
1982 MonoClass *ctor_class = cinfo->attrs [aindex].ctor->klass;
1983 if (mono_class_has_parent (ctor_class, mono_class_get_fixed_buffer_attribute_class ())) {
1984 attr = &cinfo->attrs [aindex];
1990 MonoArray *typed_args, *named_args;
1991 CattrNamedArg *arginfo;
1994 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
1995 if (!is_ok (&error))
1997 g_assert (mono_array_length (typed_args) == 2);
2000 o = mono_array_get (typed_args, MonoObject*, 0);
2001 *out_etype = monotype_cast (o)->type;
2002 o = mono_array_get (typed_args, MonoObject*, 1);
2003 g_assert (o->vtable->klass == mono_defaults.int32_class);
2004 *out_len = *(gint32*)mono_object_unbox (o);
2007 if (cinfo && !cinfo->cached)
2008 mono_custom_attrs_free (cinfo);
2009 return attr != NULL;
2013 emit_fixed_buf_conv (MonoMethodBuilder *mb, MonoType *type, MonoType *etype, int len, gboolean to_object, int *out_usize)
2015 MonoClass *klass = mono_class_from_mono_type (type);
2016 MonoClass *eklass = mono_class_from_mono_type (etype);
2019 esize = mono_class_native_size (eklass, NULL);
2021 MonoMarshalNative string_encoding = klass->unicode ? MONO_NATIVE_LPWSTR : MONO_NATIVE_LPSTR;
2022 int usize = mono_class_value_size (eklass, NULL);
2023 int msize = mono_class_value_size (eklass, NULL);
2025 //printf ("FIXED: %s %d %d\n", mono_type_full_name (type), eklass->blittable, string_encoding);
2027 if (eklass->blittable) {
2028 /* copy the elements */
2029 mono_mb_emit_ldloc (mb, 1);
2030 mono_mb_emit_ldloc (mb, 0);
2031 mono_mb_emit_icon (mb, len * esize);
2032 mono_mb_emit_byte (mb, CEE_PREFIX1);
2033 mono_mb_emit_byte (mb, CEE_CPBLK);
2036 guint32 label2, label3;
2038 /* Emit marshalling loop */
2039 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2040 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2041 mono_mb_emit_stloc (mb, index_var);
2044 label2 = mono_mb_get_label (mb);
2045 mono_mb_emit_ldloc (mb, index_var);
2046 mono_mb_emit_icon (mb, len);
2047 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2049 /* src/dst is already set */
2051 /* Do the conversion */
2052 MonoTypeEnum t = etype->type;
2058 case MONO_TYPE_BOOLEAN:
2061 case MONO_TYPE_CHAR:
2067 mono_mb_emit_ldloc (mb, 1);
2068 mono_mb_emit_ldloc (mb, 0);
2069 if (t == MONO_TYPE_CHAR && string_encoding != MONO_NATIVE_LPWSTR) {
2071 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2072 mono_mb_emit_byte (mb, CEE_STIND_I2);
2074 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2075 mono_mb_emit_byte (mb, CEE_STIND_I1);
2079 mono_mb_emit_byte (mb, mono_type_to_ldind (etype));
2080 mono_mb_emit_byte (mb, mono_type_to_stind (etype));
2084 g_assert_not_reached ();
2089 mono_mb_emit_add_to_local (mb, 0, usize);
2090 mono_mb_emit_add_to_local (mb, 1, msize);
2092 mono_mb_emit_add_to_local (mb, 0, msize);
2093 mono_mb_emit_add_to_local (mb, 1, usize);
2097 mono_mb_emit_add_to_local (mb, index_var, 1);
2099 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2101 mono_mb_patch_branch (mb, label3);
2104 *out_usize = usize * len;
2108 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
2109 int offset_of_first_child_field, MonoMarshalNative string_encoding)
2111 MonoMarshalType *info;
2115 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
2117 info = mono_marshal_load_type_info (klass);
2119 if (info->native_size == 0)
2122 if (klass->blittable) {
2123 int usize = mono_class_value_size (klass, NULL);
2124 g_assert (usize == info->native_size);
2125 mono_mb_emit_ldloc (mb, 1);
2126 mono_mb_emit_ldloc (mb, 0);
2127 mono_mb_emit_icon (mb, usize);
2128 mono_mb_emit_byte (mb, CEE_PREFIX1);
2129 mono_mb_emit_byte (mb, CEE_CPBLK);
2132 mono_mb_emit_add_to_local (mb, 0, usize);
2133 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
2135 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
2136 mono_mb_emit_add_to_local (mb, 1, usize);
2141 if (klass != mono_class_try_get_safehandle_class ()) {
2142 if (mono_class_is_auto_layout (klass)) {
2143 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
2144 mono_type_full_name (&klass->byval_arg));
2145 mono_mb_emit_exception_marshal_directive (mb, msg);
2150 for (i = 0; i < info->num_fields; i++) {
2151 MonoMarshalNative ntype;
2152 MonoMarshalConv conv;
2153 MonoType *ftype = info->fields [i].field->type;
2156 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2158 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2161 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2164 msize = klass->instance_size - info->fields [i].field->offset;
2165 usize = info->native_size - info->fields [i].offset;
2167 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2168 usize = info->fields [i + 1].offset - info->fields [i].offset;
2171 if (klass != mono_class_try_get_safehandle_class ()){
2173 * FIXME: Should really check for usize==0 and msize>0, but we apply
2174 * the layout to the managed structure as well.
2177 if (mono_class_is_explicit_layout (klass) && (usize == 0)) {
2178 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2179 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2180 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2181 "reference field at the same offset as another field.",
2182 mono_type_full_name (&klass->byval_arg));
2187 case MONO_MARSHAL_CONV_NONE: {
2190 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2191 g_assert (!ftype->byref);
2192 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2193 mono_mb_emit_ldloc (mb, 1);
2194 mono_mb_emit_ldloc (mb, 0);
2195 mono_mb_emit_byte (mb, CEE_LDIND_I);
2196 mono_mb_emit_byte (mb, CEE_STIND_I);
2207 case MONO_TYPE_BOOLEAN:
2210 case MONO_TYPE_CHAR:
2216 mono_mb_emit_ldloc (mb, 1);
2217 mono_mb_emit_ldloc (mb, 0);
2218 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2220 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2221 mono_mb_emit_byte (mb, CEE_STIND_I2);
2223 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2224 mono_mb_emit_byte (mb, CEE_STIND_I1);
2227 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2228 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2231 case MONO_TYPE_VALUETYPE: {
2232 int src_var, dst_var;
2236 if (ftype->data.klass->enumtype) {
2237 ftype = mono_class_enum_basetype (ftype->data.klass);
2241 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2242 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2244 /* save the old src pointer */
2245 mono_mb_emit_ldloc (mb, 0);
2246 mono_mb_emit_stloc (mb, src_var);
2247 /* save the old dst pointer */
2248 mono_mb_emit_ldloc (mb, 1);
2249 mono_mb_emit_stloc (mb, dst_var);
2251 if (get_fixed_buffer_attr (info->fields [i].field, &etype, &len)) {
2252 emit_fixed_buf_conv (mb, ftype, etype, len, to_object, &usize);
2254 emit_struct_conv (mb, ftype->data.klass, to_object);
2257 /* restore the old src pointer */
2258 mono_mb_emit_ldloc (mb, src_var);
2259 mono_mb_emit_stloc (mb, 0);
2260 /* restore the old dst pointer */
2261 mono_mb_emit_ldloc (mb, dst_var);
2262 mono_mb_emit_stloc (mb, 1);
2265 case MONO_TYPE_OBJECT: {
2268 static MonoMethod *variant_clear = NULL;
2269 static MonoMethod *get_object_for_native_variant = NULL;
2272 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2273 if (!get_object_for_native_variant)
2274 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2275 mono_mb_emit_ldloc (mb, 1);
2276 mono_mb_emit_ldloc (mb, 0);
2277 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2278 mono_mb_emit_byte (mb, CEE_STIND_REF);
2280 mono_mb_emit_ldloc (mb, 0);
2281 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2284 static MonoMethod *get_native_variant_for_object = NULL;
2286 if (!get_native_variant_for_object)
2287 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2289 mono_mb_emit_ldloc (mb, 0);
2290 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2291 mono_mb_emit_ldloc (mb, 1);
2292 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2295 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2296 mono_mb_emit_exception_marshal_directive (mb, msg);
2302 g_warning ("marshaling type %02x not implemented", ftype->type);
2303 g_assert_not_reached ();
2308 int src_var, dst_var;
2310 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2311 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2313 /* save the old src pointer */
2314 mono_mb_emit_ldloc (mb, 0);
2315 mono_mb_emit_stloc (mb, src_var);
2316 /* save the old dst pointer */
2317 mono_mb_emit_ldloc (mb, 1);
2318 mono_mb_emit_stloc (mb, dst_var);
2321 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2323 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2325 /* restore the old src pointer */
2326 mono_mb_emit_ldloc (mb, src_var);
2327 mono_mb_emit_stloc (mb, 0);
2328 /* restore the old dst pointer */
2329 mono_mb_emit_ldloc (mb, dst_var);
2330 mono_mb_emit_stloc (mb, 1);
2335 mono_mb_emit_add_to_local (mb, 0, usize);
2336 mono_mb_emit_add_to_local (mb, 1, msize);
2338 mono_mb_emit_add_to_local (mb, 0, msize);
2339 mono_mb_emit_add_to_local (mb, 1, usize);
2345 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2347 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2351 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2353 /* Call DestroyStructure */
2354 /* FIXME: Only do this if needed */
2355 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2356 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2357 mono_mb_emit_ldloc (mb, struct_var);
2358 mono_mb_emit_icall (mb, mono_struct_delete_old);
2362 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2364 int pos_noabort, pos_noex;
2366 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2367 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2368 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2369 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2371 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2372 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2374 mono_mb_emit_icall (mb, checkpoint_func);
2375 /* Throw the exception returned by the checkpoint function, if any */
2376 mono_mb_emit_byte (mb, CEE_DUP);
2377 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2378 mono_mb_emit_byte (mb, CEE_THROW);
2379 mono_mb_patch_branch (mb, pos_noex);
2380 mono_mb_emit_byte (mb, CEE_POP);
2382 mono_mb_patch_branch (mb, pos_noabort);
2386 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2388 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2391 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2395 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2397 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2401 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2403 emit_thread_interrupt_checkpoint (mb);
2407 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2409 emit_thread_force_interrupt_checkpoint (mb);
2412 #endif /* DISABLE_JIT */
2414 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2415 static MonoAsyncResult *
2416 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2419 MonoMulticastDelegate *mcast_delegate;
2423 g_assert (delegate);
2424 mcast_delegate = (MonoMulticastDelegate *) delegate;
2425 if (mcast_delegate->delegates != NULL) {
2426 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2430 #ifndef DISABLE_REMOTING
2431 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2432 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2433 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2434 /* If the target is a proxy, make a direct call. Is proxy's work
2435 // to make the call asynchronous.
2437 MonoMethodMessage *msg;
2438 MonoDelegate *async_callback;
2440 MonoAsyncResult *ares;
2442 MonoArray *out_args;
2443 method = delegate->method;
2445 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2446 if (mono_error_set_pending_exception (&error))
2448 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2449 if (mono_error_set_pending_exception (&error))
2451 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2452 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2453 MONO_OBJECT_SETREF (msg, async_result, ares);
2454 msg->call_type = CallType_BeginInvoke;
2457 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2458 if (!mono_error_ok (&error)) {
2459 mono_error_set_pending_exception (&error);
2463 mono_set_pending_exception ((MonoException *) exc);
2469 klass = delegate->object.vtable->klass;
2471 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2473 method = mono_get_delegate_invoke (klass);
2476 MonoAsyncResult *result = mono_threadpool_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2477 mono_error_set_pending_exception (&error);
2484 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2486 int i, params_var, tmp_var;
2488 /* allocate local (pointer) *params[] */
2489 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2490 /* allocate local (pointer) tmp */
2491 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2493 /* alloate space on stack to store an array of pointers to the arguments */
2494 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2495 mono_mb_emit_byte (mb, CEE_PREFIX1);
2496 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2497 mono_mb_emit_stloc (mb, params_var);
2500 mono_mb_emit_ldloc (mb, params_var);
2501 mono_mb_emit_stloc (mb, tmp_var);
2503 if (save_this && sig->hasthis) {
2504 mono_mb_emit_ldloc (mb, tmp_var);
2505 mono_mb_emit_ldarg_addr (mb, 0);
2506 mono_mb_emit_byte (mb, CEE_STIND_I);
2507 /* tmp = tmp + sizeof (gpointer) */
2508 if (sig->param_count)
2509 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2513 for (i = 0; i < sig->param_count; i++) {
2514 mono_mb_emit_ldloc (mb, tmp_var);
2515 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2516 mono_mb_emit_byte (mb, CEE_STIND_I);
2517 /* tmp = tmp + sizeof (gpointer) */
2518 if (i < (sig->param_count - 1))
2519 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2525 #endif /* DISABLE_JIT */
2528 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2532 GString *res = g_string_new ("");
2535 g_string_append (res, prefix);
2536 g_string_append_c (res, '_');
2539 mono_type_get_desc (res, sig->ret, FALSE);
2542 g_string_append (res, "__this__");
2544 for (i = 0; i < sig->param_count; ++i) {
2545 g_string_append_c (res, '_');
2546 mono_type_get_desc (res, sig->params [i], FALSE);
2549 g_string_free (res, FALSE);
2554 * mono_marshal_get_string_encoding:
2556 * Return the string encoding which should be used for a given parameter.
2558 static MonoMarshalNative
2559 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2561 /* First try the parameter marshal info */
2563 if (spec->native == MONO_NATIVE_LPARRAY) {
2564 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2565 return spec->data.array_data.elem_type;
2568 return spec->native;
2572 return MONO_NATIVE_LPSTR;
2574 /* Then try the method level marshal info */
2575 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2576 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2577 return MONO_NATIVE_LPSTR;
2578 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2579 return MONO_NATIVE_LPWSTR;
2580 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2582 return MONO_NATIVE_LPWSTR;
2584 return MONO_NATIVE_LPSTR;
2587 return MONO_NATIVE_LPSTR;
2591 static MonoMarshalConv
2592 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2594 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2597 case MONO_NATIVE_LPWSTR:
2598 return MONO_MARSHAL_CONV_STR_LPWSTR;
2599 case MONO_NATIVE_LPSTR:
2600 case MONO_NATIVE_VBBYREFSTR:
2601 return MONO_MARSHAL_CONV_STR_LPSTR;
2602 case MONO_NATIVE_LPTSTR:
2603 return MONO_MARSHAL_CONV_STR_LPTSTR;
2604 case MONO_NATIVE_BSTR:
2605 return MONO_MARSHAL_CONV_STR_BSTR;
2606 case MONO_NATIVE_UTF8STR:
2607 return MONO_MARSHAL_CONV_STR_UTF8STR;
2609 return MONO_MARSHAL_CONV_INVALID;
2613 static MonoMarshalConv
2614 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2616 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2619 case MONO_NATIVE_LPWSTR:
2620 return MONO_MARSHAL_CONV_SB_LPWSTR;
2621 case MONO_NATIVE_LPSTR:
2622 return MONO_MARSHAL_CONV_SB_LPSTR;
2623 case MONO_NATIVE_UTF8STR:
2624 return MONO_MARSHAL_CONV_SB_UTF8STR;
2625 case MONO_NATIVE_LPTSTR:
2626 return MONO_MARSHAL_CONV_SB_LPTSTR;
2628 return MONO_MARSHAL_CONV_INVALID;
2632 static MonoMarshalConv
2633 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2635 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2640 case MONO_NATIVE_LPWSTR:
2642 return MONO_MARSHAL_CONV_LPWSTR_STR;
2643 case MONO_NATIVE_UTF8STR:
2644 return MONO_MARSHAL_CONV_UTF8STR_STR;
2645 case MONO_NATIVE_LPSTR:
2646 case MONO_NATIVE_VBBYREFSTR:
2647 return MONO_MARSHAL_CONV_LPSTR_STR;
2648 case MONO_NATIVE_LPTSTR:
2652 return MONO_MARSHAL_CONV_LPTSTR_STR;
2653 case MONO_NATIVE_BSTR:
2654 return MONO_MARSHAL_CONV_BSTR_STR;
2656 return MONO_MARSHAL_CONV_INVALID;
2660 static MonoMarshalConv
2661 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2663 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2668 case MONO_NATIVE_LPWSTR:
2670 * mono_string_builder_to_utf16 does not allocate a
2671 * new buffer, so no need to free it.
2674 return MONO_MARSHAL_CONV_LPWSTR_SB;
2675 case MONO_NATIVE_UTF8STR:
2676 return MONO_MARSHAL_CONV_UTF8STR_SB;
2677 case MONO_NATIVE_LPSTR:
2678 return MONO_MARSHAL_CONV_LPSTR_SB;
2680 case MONO_NATIVE_LPTSTR:
2681 return MONO_MARSHAL_CONV_LPTSTR_SB;
2684 return MONO_MARSHAL_CONV_INVALID;
2689 * Return whenever a field of a native structure or an array member needs to
2693 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2695 MonoMarshalNative encoding;
2698 case MONO_TYPE_VALUETYPE:
2699 /* FIXME: Optimize this */
2701 case MONO_TYPE_OBJECT:
2702 case MONO_TYPE_CLASS:
2703 if (t->data.klass == mono_defaults.stringbuilder_class) {
2705 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2709 case MONO_TYPE_STRING:
2710 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2711 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2718 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2721 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2724 mono_marshal_lock ();
2727 g_hash_table_new (hash_func, equal_func);
2728 mono_memory_barrier ();
2731 mono_marshal_unlock ();
2737 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2739 return get_cache (var, hash_func, equal_func);
2743 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2747 mono_marshal_lock ();
2748 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2749 mono_marshal_unlock ();
2756 * Create a MonoMethod from MB, set INFO as wrapper info.
2759 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2760 int max_stack, WrapperInfo *info)
2764 res = mono_mb_create_method (mb, sig, max_stack);
2766 mono_marshal_set_wrapper_info (res, info);
2770 /* Create the method from the builder and place it in the cache */
2772 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2773 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2774 int max_stack, WrapperInfo *info, gboolean *out_found)
2781 mono_marshal_lock ();
2782 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2783 mono_marshal_unlock ();
2786 newm = mono_mb_create_method (mb, sig, max_stack);
2787 mono_marshal_lock ();
2788 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2791 g_hash_table_insert (cache, key, res);
2792 mono_marshal_set_wrapper_info (res, info);
2793 mono_marshal_unlock ();
2797 mono_marshal_unlock ();
2798 mono_free_method (newm);
2806 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2807 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2810 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2814 * mono_marshal_method_from_wrapper:
2817 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2820 int wrapper_type = wrapper->wrapper_type;
2823 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2826 info = mono_marshal_get_wrapper_info (wrapper);
2828 switch (wrapper_type) {
2829 case MONO_WRAPPER_REMOTING_INVOKE:
2830 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2831 case MONO_WRAPPER_XDOMAIN_INVOKE:
2832 m = info->d.remoting.method;
2833 if (wrapper->is_inflated) {
2837 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2838 * contains an uninflated method.
2840 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2841 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2845 case MONO_WRAPPER_SYNCHRONIZED:
2846 m = info->d.synchronized.method;
2847 if (wrapper->is_inflated) {
2850 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2851 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2855 case MONO_WRAPPER_UNBOX:
2856 return info->d.unbox.method;
2857 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2858 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2859 return info->d.managed_to_native.method;
2862 case MONO_WRAPPER_RUNTIME_INVOKE:
2863 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2864 return info->d.runtime_invoke.method;
2867 case MONO_WRAPPER_DELEGATE_INVOKE:
2869 return info->d.delegate_invoke.method;
2878 * mono_marshal_get_wrapper_info:
2880 * Retrieve the WrapperInfo structure associated with WRAPPER.
2883 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2885 g_assert (wrapper->wrapper_type);
2887 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2891 * mono_marshal_set_wrapper_info:
2893 * Set the WrapperInfo structure associated with the wrapper
2894 * method METHOD to INFO.
2897 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2901 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2904 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2909 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2913 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2914 info->subtype = subtype;
2919 * get_wrapper_target_class:
2921 * Return the class where a wrapper method should be placed.
2924 get_wrapper_target_class (MonoImage *image)
2931 * - can't put all wrappers into an mscorlib class, because they reference
2932 * metadata (signature) so they should be put into the same image as the
2933 * method they wrap, so they are unloaded together.
2934 * - putting them into a class with a type initalizer could cause the
2935 * initializer to be executed which can be a problem if the wrappers are
2937 * - putting them into an inflated class can cause problems if the the
2938 * class is deleted because it references an image which is unloaded.
2939 * To avoid these problems, we put the wrappers into the <Module> class of
2942 if (image_is_dynamic (image)) {
2943 klass = ((MonoDynamicImage*)image)->wrappers_type;
2945 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2946 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2954 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2955 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2959 * check_generic_wrapper_cache:
2961 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2962 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2963 * generic method definition.
2966 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2969 MonoMethod *inst, *def;
2970 MonoGenericContext *ctx;
2972 g_assert (orig_method->is_inflated);
2973 ctx = mono_method_get_context (orig_method);
2976 * Look for the instance
2978 res = mono_marshal_find_in_cache (cache, key);
2983 * Look for the definition
2985 def = mono_marshal_find_in_cache (cache, def_key);
2988 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2989 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2991 mono_memory_barrier ();
2992 mono_marshal_lock ();
2993 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2995 g_hash_table_insert (cache, key, inst);
2998 mono_marshal_unlock ();
3005 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
3008 MonoMethod *inst, *res;
3011 * We use the same cache for the generic definition and the instances.
3013 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3014 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3015 mono_memory_barrier ();
3016 mono_marshal_lock ();
3017 res = (MonoMethod *)g_hash_table_lookup (cache, key);
3019 g_hash_table_insert (cache, key, inst);
3022 mono_marshal_unlock ();
3027 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
3031 MonoMethod *inst, *def;
3034 * Look for the instance
3036 res = mono_marshal_find_in_cache (cache, orig_method->klass);
3041 * Look for the definition
3043 def = mono_marshal_find_in_cache (cache, def_method->klass);
3045 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3046 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3049 mono_memory_barrier ();
3050 mono_marshal_lock ();
3051 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3053 g_hash_table_insert (cache, orig_method->klass, inst);
3056 mono_marshal_unlock ();
3063 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
3066 MonoMethod *inst, *res;
3067 WrapperInfo *ginfo, *info;
3070 * We use the same cache for the generic definition and the instances.
3072 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3073 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3075 ginfo = mono_marshal_get_wrapper_info (def);
3077 info = (WrapperInfo *)mono_image_alloc0 (def->klass->image, sizeof (WrapperInfo));
3078 info->subtype = ginfo->subtype;
3079 if (info->subtype == WRAPPER_SUBTYPE_NONE) {
3080 info->d.delegate_invoke.method = mono_class_inflate_generic_method_checked (ginfo->d.delegate_invoke.method, ctx, &error);
3081 mono_error_assert_ok (&error);
3085 mono_memory_barrier ();
3086 mono_marshal_lock ();
3087 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3089 g_hash_table_insert (cache, orig_method->klass, inst);
3092 mono_marshal_unlock ();
3097 * mono_marshal_get_delegate_begin_invoke:
3100 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
3102 MonoMethodSignature *sig;
3103 MonoMethodBuilder *mb;
3108 MonoGenericContext *ctx = NULL;
3109 MonoMethod *orig_method = NULL;
3111 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3112 !strcmp (method->name, "BeginInvoke"));
3115 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3117 if (method->is_inflated) {
3118 orig_method = method;
3119 ctx = &((MonoMethodInflated*)method)->context;
3120 method = ((MonoMethodInflated*)method)->declaring;
3123 sig = mono_signature_no_pinvoke (method);
3129 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
3130 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3134 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
3135 (GHashFunc)mono_signature_hash,
3136 (GCompareFunc)mono_metadata_signature_equal);
3137 if ((res = mono_marshal_find_in_cache (cache, sig)))
3141 g_assert (sig->hasthis);
3143 name = mono_signature_to_name (sig, "begin_invoke");
3145 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3147 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3151 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3153 mono_mb_emit_ldarg (mb, 0);
3154 mono_mb_emit_ldloc (mb, params_var);
3155 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3156 mono_mb_emit_byte (mb, CEE_RET);
3161 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3162 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3164 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3171 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
3173 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3176 MonoDomain *domain = mono_domain_get ();
3177 MonoAsyncResult *ares;
3178 MonoMethod *method = NULL;
3179 MonoMethodSignature *sig;
3180 MonoMethodMessage *msg;
3181 MonoObject *res, *exc;
3182 MonoArray *out_args;
3185 g_assert (delegate);
3187 if (!delegate->method_info) {
3188 g_assert (delegate->method);
3189 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
3190 if (!mono_error_ok (&error)) {
3191 mono_error_set_pending_exception (&error);
3194 MONO_OBJECT_SETREF (delegate, method_info, rm);
3197 if (!delegate->method_info || !delegate->method_info->method)
3198 g_assert_not_reached ();
3200 klass = delegate->object.vtable->klass;
3202 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3203 g_assert (method != NULL);
3205 sig = mono_signature_no_pinvoke (method);
3207 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3208 if (mono_error_set_pending_exception (&error))
3211 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3213 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
3217 if (ares->async_delegate != (MonoObject*)delegate) {
3218 mono_set_pending_exception (mono_get_exception_invalid_operation (
3219 "The IAsyncResult object provided does not match this delegate."));
3223 #ifndef DISABLE_REMOTING
3224 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3225 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3226 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3227 if (!mono_error_ok (&error)) {
3228 mono_error_set_pending_exception (&error);
3231 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3232 if (mono_error_set_pending_exception (&error))
3234 msg->call_type = CallType_EndInvoke;
3235 MONO_OBJECT_SETREF (msg, async_result, ares);
3236 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3237 if (!mono_error_ok (&error)) {
3238 mono_error_set_pending_exception (&error);
3244 res = mono_threadpool_end_invoke (ares, &out_args, &exc, &error);
3245 if (mono_error_set_pending_exception (&error))
3250 if (((MonoException*)exc)->stack_trace) {
3251 MonoError inner_error;
3252 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3253 if (is_ok (&inner_error)) {
3255 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3257 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3260 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3262 mono_set_pending_exception ((MonoException*)exc);
3265 mono_method_return_message_restore (method, params, out_args, &error);
3266 mono_error_set_pending_exception (&error);
3273 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3275 MonoType *t = mono_type_get_underlying_type (return_type);
3277 if (return_type->byref)
3278 return_type = &mono_defaults.int_class->byval_arg;
3281 case MONO_TYPE_VOID:
3282 g_assert_not_reached ();
3285 case MONO_TYPE_STRING:
3286 case MONO_TYPE_CLASS:
3287 case MONO_TYPE_OBJECT:
3288 case MONO_TYPE_ARRAY:
3289 case MONO_TYPE_SZARRAY:
3293 case MONO_TYPE_BOOLEAN:
3296 case MONO_TYPE_CHAR:
3306 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3307 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3309 case MONO_TYPE_GENERICINST:
3310 if (!mono_type_generic_inst_is_valuetype (t))
3313 case MONO_TYPE_VALUETYPE: {
3314 MonoClass *klass = mono_class_from_mono_type (return_type);
3315 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3316 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3320 case MONO_TYPE_MVAR: {
3321 MonoClass *klass = mono_class_from_mono_type (return_type);
3322 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3326 g_warning ("type 0x%x not handled", return_type->type);
3327 g_assert_not_reached ();
3330 mono_mb_emit_byte (mb, CEE_RET);
3333 #endif /* DISABLE_JIT */
3336 * mono_marshal_get_delegate_end_invoke:
3339 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3341 MonoMethodSignature *sig;
3342 MonoMethodBuilder *mb;
3347 MonoGenericContext *ctx = NULL;
3348 MonoMethod *orig_method = NULL;
3350 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3351 !strcmp (method->name, "EndInvoke"));
3354 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3356 if (method->is_inflated) {
3357 orig_method = method;
3358 ctx = &((MonoMethodInflated*)method)->context;
3359 method = ((MonoMethodInflated*)method)->declaring;
3362 sig = mono_signature_no_pinvoke (method);
3368 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3369 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3373 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3374 (GHashFunc)mono_signature_hash,
3375 (GCompareFunc)mono_metadata_signature_equal);
3376 if ((res = mono_marshal_find_in_cache (cache, sig)))
3380 g_assert (sig->hasthis);
3382 name = mono_signature_to_name (sig, "end_invoke");
3384 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3386 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3390 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3392 mono_mb_emit_ldarg (mb, 0);
3393 mono_mb_emit_ldloc (mb, params_var);
3394 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3396 if (sig->ret->type == MONO_TYPE_VOID) {
3397 mono_mb_emit_byte (mb, CEE_POP);
3398 mono_mb_emit_byte (mb, CEE_RET);
3400 mono_mb_emit_restore_result (mb, sig->ret);
3405 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3406 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3408 res = mono_mb_create_and_cache (cache, sig,
3409 mb, sig, sig->param_count + 16);
3418 MonoMethodSignature *sig;
3420 } SignaturePointerPair;
3423 signature_pointer_pair_hash (gconstpointer data)
3425 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3427 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3431 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3433 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3434 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3438 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3440 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3442 return pair->pointer == user_data;
3446 free_signature_pointer_pair (SignaturePointerPair *pair)
3452 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3454 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3456 MonoMethodBuilder *mb;
3459 gpointer cache_key = NULL;
3460 SignaturePointerPair key = { NULL, NULL };
3461 SignaturePointerPair *new_key;
3462 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3463 int pos0, pos1, pos2;
3465 MonoClass *target_class = NULL;
3466 gboolean closed_over_null = FALSE;
3467 MonoGenericContext *ctx = NULL;
3468 MonoGenericContainer *container = NULL;
3469 MonoMethod *orig_method = method;
3471 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3475 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3476 !strcmp (method->name, "Invoke"));
3478 invoke_sig = sig = mono_signature_no_pinvoke (method);
3481 * If the delegate target is null, and the target method is not static, a virtual
3482 * call is made to that method with the first delegate argument as this. This is
3483 * a non-documented .NET feature.
3486 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3487 if (target_method->is_inflated) {
3489 MonoType *target_type;
3491 g_assert (method->signature->hasthis);
3492 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3493 mono_method_get_context (method), &error);
3494 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3495 target_class = mono_class_from_mono_type (target_type);
3497 target_class = target_method->klass;
3500 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3503 if (static_method_with_first_arg_bound) {
3504 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3505 g_assert (!callvirt);
3506 invoke_sig = mono_method_signature (target_method);
3510 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3512 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3513 ctx = &((MonoMethodInflated*)method)->context;
3514 method = ((MonoMethodInflated*)method)->declaring;
3516 container = mono_method_get_generic_container (method);
3518 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
3519 g_assert (container);
3521 invoke_sig = sig = mono_signature_no_pinvoke (method);
3528 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3529 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3532 cache_key = method->klass;
3533 } else if (static_method_with_first_arg_bound) {
3534 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3535 (GHashFunc)mono_signature_hash,
3536 (GCompareFunc)mono_metadata_signature_equal);
3538 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3540 res = mono_marshal_find_in_cache (cache, invoke_sig);
3543 cache_key = invoke_sig;
3544 } else if (callvirt) {
3545 GHashTable **cache_ptr;
3547 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3549 /* We need to cache the signature+method pair */
3550 mono_marshal_lock ();
3552 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3554 key.sig = invoke_sig;
3555 key.pointer = target_method;
3556 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3557 mono_marshal_unlock ();
3561 // Inflated methods should not be in this cache because it's not stored on the imageset.
3562 g_assert (!method->is_inflated);
3563 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3564 (GHashFunc)mono_signature_hash,
3565 (GCompareFunc)mono_metadata_signature_equal);
3566 res = mono_marshal_find_in_cache (cache, sig);
3572 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3573 static_sig->hasthis = 0;
3574 if (!static_method_with_first_arg_bound)
3575 invoke_sig = static_sig;
3577 if (static_method_with_first_arg_bound)
3578 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3579 else if (closed_over_null)
3580 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3582 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3584 name = mono_signature_to_name (invoke_sig, "invoke");
3586 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3588 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3592 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3594 /* allocate local 0 (object) */
3595 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3596 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3597 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3598 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3599 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3602 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3604 g_assert (sig->hasthis);
3607 * {type: sig->ret} res;
3608 * if (delegates == null) {
3609 * return this.<target> ( args .. );
3611 * int i = 0, len = this.delegates.Length;
3613 * res = this.delegates [i].Invoke ( args .. );
3614 * } while (++i < len);
3619 /* this wrapper can be used in unmanaged-managed transitions */
3620 emit_thread_interrupt_checkpoint (mb);
3622 /* delegates = this.delegates */
3623 mono_mb_emit_ldarg (mb, 0);
3624 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3625 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3626 mono_mb_emit_stloc (mb, local_delegates);
3628 /* if (delegates == null) */
3629 mono_mb_emit_ldloc (mb, local_delegates);
3630 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3632 /* return target.<target_method|method_ptr> ( args .. ); */
3634 /* target = d.target; */
3635 mono_mb_emit_ldarg (mb, 0);
3636 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3637 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3638 mono_mb_emit_stloc (mb, local_target);
3640 /*static methods with bound first arg can have null target and still be bound*/
3641 if (!static_method_with_first_arg_bound) {
3642 /* if target != null */
3643 mono_mb_emit_ldloc (mb, local_target);
3644 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3646 /* then call this->method_ptr nonstatic */
3649 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3651 mono_mb_emit_ldloc (mb, local_target);
3652 for (i = 0; i < sig->param_count; ++i)
3653 mono_mb_emit_ldarg (mb, i + 1);
3654 mono_mb_emit_ldarg (mb, 0);
3655 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3656 mono_mb_emit_byte (mb, CEE_LDIND_I);
3657 mono_mb_emit_ldarg (mb, 0);
3658 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3659 mono_mb_emit_byte (mb, CEE_LDIND_I);
3660 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3661 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3662 mono_mb_emit_byte (mb, CEE_RET);
3665 /* else [target == null] call this->method_ptr static */
3666 mono_mb_patch_branch (mb, pos0);
3670 if (!closed_over_null) {
3671 if (target_class->valuetype) {
3672 mono_mb_emit_ldarg (mb, 1);
3673 for (i = 1; i < sig->param_count; ++i)
3674 mono_mb_emit_ldarg (mb, i + 1);
3675 mono_mb_emit_op (mb, CEE_CALL, target_method);
3677 mono_mb_emit_ldarg (mb, 1);
3678 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3679 for (i = 1; i < sig->param_count; ++i)
3680 mono_mb_emit_ldarg (mb, i + 1);
3681 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3684 mono_mb_emit_byte (mb, CEE_LDNULL);
3685 for (i = 0; i < sig->param_count; ++i)
3686 mono_mb_emit_ldarg (mb, i + 1);
3687 mono_mb_emit_op (mb, CEE_CALL, target_method);
3690 if (static_method_with_first_arg_bound) {
3691 mono_mb_emit_ldloc (mb, local_target);
3692 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3693 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3695 for (i = 0; i < sig->param_count; ++i)
3696 mono_mb_emit_ldarg (mb, i + 1);
3697 mono_mb_emit_ldarg (mb, 0);
3698 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3699 mono_mb_emit_byte (mb, CEE_LDIND_I);
3700 mono_mb_emit_ldarg (mb, 0);
3701 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3702 mono_mb_emit_byte (mb, CEE_LDIND_I);
3703 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3704 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3707 mono_mb_emit_byte (mb, CEE_RET);
3709 /* else [delegates != null] */
3710 mono_mb_patch_branch (mb, pos2);
3712 /* len = delegates.Length; */
3713 mono_mb_emit_ldloc (mb, local_delegates);
3714 mono_mb_emit_byte (mb, CEE_LDLEN);
3715 mono_mb_emit_byte (mb, CEE_CONV_I4);
3716 mono_mb_emit_stloc (mb, local_len);
3719 mono_mb_emit_icon (mb, 0);
3720 mono_mb_emit_stloc (mb, local_i);
3722 pos1 = mono_mb_get_label (mb);
3724 /* d = delegates [i]; */
3725 mono_mb_emit_ldloc (mb, local_delegates);
3726 mono_mb_emit_ldloc (mb, local_i);
3727 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3728 mono_mb_emit_stloc (mb, local_d);
3730 /* res = d.Invoke ( args .. ); */
3731 mono_mb_emit_ldloc (mb, local_d);
3732 for (i = 0; i < sig->param_count; i++)
3733 mono_mb_emit_ldarg (mb, i + 1);
3735 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3738 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3739 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3742 mono_mb_emit_stloc (mb, local_res);
3745 mono_mb_emit_add_to_local (mb, local_i, 1);
3748 mono_mb_emit_ldloc (mb, local_i);
3749 mono_mb_emit_ldloc (mb, local_len);
3750 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3754 mono_mb_emit_ldloc (mb, local_res);
3755 mono_mb_emit_byte (mb, CEE_RET);
3757 mb->skip_visibility = 1;
3758 #endif /* DISABLE_JIT */
3760 info = mono_wrapper_info_create (mb, subtype);
3761 info->d.delegate_invoke.method = method;
3766 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3767 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3768 } else if (callvirt) {
3769 new_key = g_new0 (SignaturePointerPair, 1);
3772 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3776 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3780 /* mono_method_print_code (res); */
3786 * mono_marshal_get_delegate_invoke:
3787 * The returned method invokes all methods in a multicast delegate.
3790 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3792 gboolean callvirt = FALSE;
3793 gboolean static_method_with_first_arg_bound = FALSE;
3794 MonoMethod *target_method = NULL;
3795 MonoMethodSignature *sig;
3797 sig = mono_signature_no_pinvoke (method);
3799 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3801 target_method = del->method;
3804 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3805 static_method_with_first_arg_bound = TRUE;
3806 target_method = del->method;
3809 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3813 MonoMethodSignature *ctor_sig;
3814 MonoMethodSignature *sig;
3817 /* protected by the marshal lock, contains CtorSigPair pointers */
3818 static GSList *strsig_list = NULL;
3820 static MonoMethodSignature *
3821 lookup_string_ctor_signature (MonoMethodSignature *sig)
3823 MonoMethodSignature *callsig;
3827 mono_marshal_lock ();
3829 for (item = strsig_list; item; item = item->next) {
3830 cs = (CtorSigPair *)item->data;
3831 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3832 * because it is lock-free.
3834 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3839 mono_marshal_unlock ();
3843 static MonoMethodSignature *
3844 add_string_ctor_signature (MonoMethod *method)
3846 MonoMethodSignature *callsig;
3849 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3850 callsig->ret = &mono_defaults.string_class->byval_arg;
3851 cs = g_new (CtorSigPair, 1);
3853 cs->ctor_sig = mono_method_signature (method);
3855 mono_marshal_lock ();
3856 strsig_list = g_slist_prepend (strsig_list, cs);
3857 mono_marshal_unlock ();
3862 * mono_marshal_get_string_ctor_signature:
3864 * Return the modified signature used by string ctors (they return the newly created
3867 MonoMethodSignature*
3868 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3870 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3872 sig = add_string_ctor_signature (method);
3878 get_runtime_invoke_type (MonoType *t, gboolean ret)
3881 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3883 /* Can't share this with 'I' as that needs another indirection */
3884 return &mono_defaults.int_class->this_arg;
3887 if (MONO_TYPE_IS_REFERENCE (t))
3888 return &mono_defaults.object_class->byval_arg;
3891 /* The result needs to be boxed */
3896 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3899 return &mono_defaults.sbyte_class->byval_arg;
3901 return &mono_defaults.int16_class->byval_arg;
3903 return &mono_defaults.int32_class->byval_arg;
3906 return &mono_defaults.int64_class->byval_arg;
3907 case MONO_TYPE_BOOLEAN:
3908 return &mono_defaults.byte_class->byval_arg;
3909 case MONO_TYPE_CHAR:
3910 return &mono_defaults.uint16_class->byval_arg;
3912 return &mono_defaults.int_class->byval_arg;
3913 case MONO_TYPE_VALUETYPE:
3914 if (t->data.klass->enumtype) {
3915 t = mono_class_enum_basetype (t->data.klass);
3925 * mono_marshal_get_runtime_invoke_sig:
3927 * Return a common signature used for sharing runtime invoke wrappers.
3929 static MonoMethodSignature*
3930 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3932 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3935 res->generic_param_count = 0;
3936 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3937 for (i = 0; i < res->param_count; ++i)
3938 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3944 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3946 /* Can't share wrappers which return a vtype since it needs to be boxed */
3947 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))
3950 return mono_metadata_signature_equal (sig1, sig2);
3958 * Emit the call to the wrapper method from a runtime invoke wrapper.
3961 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3962 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3964 gboolean virtual_, gboolean need_direct_wrapper)
3966 static MonoString *string_dummy = NULL;
3968 int *tmp_nullable_locals;
3969 gboolean void_ret = FALSE;
3970 gboolean string_ctor = method && method->string_ctor;
3972 /* to make it work with our special string constructors */
3973 if (!string_dummy) {
3974 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3975 string_dummy = mono_string_new_wrapper ("dummy");
3979 g_assert (sig->hasthis);
3980 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3985 if (mono_gc_is_moving ()) {
3986 mono_mb_emit_ptr (mb, &string_dummy);
3987 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3989 mono_mb_emit_ptr (mb, string_dummy);
3992 mono_mb_emit_ldarg (mb, 0);
3996 tmp_nullable_locals = g_new0 (int, sig->param_count);
3998 for (i = 0; i < sig->param_count; i++) {
3999 MonoType *t = sig->params [i];
4002 mono_mb_emit_ldarg (mb, 1);
4004 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4005 mono_mb_emit_byte (mb, CEE_ADD);
4009 mono_mb_emit_byte (mb, CEE_LDIND_I);
4010 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4011 * So to make this work we unbox it to a local variablee and push a reference to that.
4013 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4014 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4016 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4017 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4018 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4023 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4024 type = sig->params [i]->type;
4028 case MONO_TYPE_BOOLEAN:
4032 case MONO_TYPE_CHAR:
4041 mono_mb_emit_byte (mb, CEE_LDIND_I);
4042 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4044 case MONO_TYPE_STRING:
4045 case MONO_TYPE_CLASS:
4046 case MONO_TYPE_ARRAY:
4048 case MONO_TYPE_SZARRAY:
4049 case MONO_TYPE_OBJECT:
4050 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4052 case MONO_TYPE_GENERICINST:
4053 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4054 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4059 case MONO_TYPE_VALUETYPE:
4060 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4061 type = mono_class_enum_basetype (t->data.klass)->type;
4064 mono_mb_emit_byte (mb, CEE_LDIND_I);
4065 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4066 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4067 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4068 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4070 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4074 g_assert_not_reached ();
4079 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4080 } else if (need_direct_wrapper) {
4081 mono_mb_emit_op (mb, CEE_CALL, method);
4083 mono_mb_emit_ldarg (mb, 3);
4084 mono_mb_emit_calli (mb, callsig);
4087 if (sig->ret->byref) {
4089 g_assert_not_reached ();
4092 switch (sig->ret->type) {
4093 case MONO_TYPE_VOID:
4097 case MONO_TYPE_BOOLEAN:
4098 case MONO_TYPE_CHAR:
4111 case MONO_TYPE_VALUETYPE:
4112 case MONO_TYPE_TYPEDBYREF:
4113 case MONO_TYPE_GENERICINST:
4114 /* box value types */
4115 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4117 case MONO_TYPE_STRING:
4118 case MONO_TYPE_CLASS:
4119 case MONO_TYPE_ARRAY:
4120 case MONO_TYPE_SZARRAY:
4121 case MONO_TYPE_OBJECT:
4125 /* The result is an IntPtr */
4126 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4129 g_assert_not_reached ();
4133 mono_mb_emit_stloc (mb, loc_res);
4135 /* Convert back nullable-byref arguments */
4136 for (i = 0; i < sig->param_count; i++) {
4137 MonoType *t = sig->params [i];
4140 * Box the result and put it back into the array, the caller will have
4141 * to obtain it from there.
4143 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4144 mono_mb_emit_ldarg (mb, 1);
4145 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4146 mono_mb_emit_byte (mb, CEE_ADD);
4148 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4149 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4151 mono_mb_emit_byte (mb, CEE_STIND_REF);
4155 g_free (tmp_nullable_locals);
4159 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
4160 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4161 gboolean virtual_, gboolean need_direct_wrapper)
4164 MonoExceptionClause *clause;
4165 int loc_res, loc_exc;
4167 /* The wrapper looks like this:
4173 * } catch (Exception e) {
4181 /* allocate local 0 (object) tmp */
4182 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4183 /* allocate local 1 (object) exc */
4184 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4186 /* *exc is assumed to be initialized to NULL by the caller */
4188 mono_mb_emit_byte (mb, CEE_LDARG_2);
4189 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4194 labels [1] = mono_mb_get_label (mb);
4195 emit_thread_force_interrupt_checkpoint (mb);
4196 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4198 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4200 /* Add a try clause around the call */
4201 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
4202 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4203 clause->data.catch_class = mono_defaults.exception_class;
4204 clause->try_offset = labels [1];
4205 clause->try_len = mono_mb_get_label (mb) - labels [1];
4207 clause->handler_offset = mono_mb_get_label (mb);
4210 mono_mb_emit_stloc (mb, loc_exc);
4211 mono_mb_emit_byte (mb, CEE_LDARG_2);
4212 mono_mb_emit_ldloc (mb, loc_exc);
4213 mono_mb_emit_byte (mb, CEE_STIND_REF);
4215 mono_mb_emit_branch (mb, CEE_LEAVE);
4217 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4219 mono_mb_set_clauses (mb, 1, clause);
4221 mono_mb_patch_branch (mb, labels [2]);
4222 mono_mb_emit_ldloc (mb, loc_res);
4223 mono_mb_emit_byte (mb, CEE_RET);
4228 mono_mb_patch_branch (mb, labels [0]);
4229 emit_thread_force_interrupt_checkpoint (mb);
4230 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4232 mono_mb_emit_ldloc (mb, 0);
4233 mono_mb_emit_byte (mb, CEE_RET);
4238 * mono_marshal_get_runtime_invoke:
4239 * Generates IL code for the runtime invoke function:
4241 * <code>MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)</code>
4243 * We also catch exceptions if \p exc is not NULL.
4244 * If \p virtual is TRUE, then \p method is invoked virtually on \p this. This is useful since
4245 * it means that the compiled code for \p method does not have to be looked up
4246 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4247 * its \p method argument.
4250 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4252 MonoMethodSignature *sig, *csig, *callsig;
4253 MonoMethodBuilder *mb;
4254 GHashTable *cache = NULL;
4255 MonoClass *target_klass;
4256 MonoMethod *res = NULL;
4257 static MonoMethodSignature *cctor_signature = NULL;
4258 static MonoMethodSignature *finalize_signature = NULL;
4260 const char *param_names [16];
4261 gboolean need_direct_wrapper = FALSE;
4266 if (!cctor_signature) {
4267 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4268 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4270 if (!finalize_signature) {
4271 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4272 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4273 finalize_signature->hasthis = 1;
4277 need_direct_wrapper = TRUE;
4280 * Use a separate cache indexed by methods to speed things up and to avoid the
4281 * boundless mempool growth caused by the signature_dup stuff below.
4284 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4286 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4288 res = mono_marshal_find_in_cache (cache, method);
4292 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4293 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4295 * Array Get/Set/Address methods. The JIT implements them using inline code
4296 * so we need to create an invoke wrapper which calls the method directly.
4298 need_direct_wrapper = TRUE;
4301 if (method->string_ctor) {
4302 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4304 callsig = add_string_ctor_signature (method);
4305 /* Can't share this as we push a string as this */
4306 need_direct_wrapper = TRUE;
4308 if (method_is_dynamic (method))
4309 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4311 callsig = mono_method_signature (method);
4314 sig = mono_method_signature (method);
4316 target_klass = get_wrapper_target_class (method->klass->image);
4318 /* Try to share wrappers for non-corlib methods with simple signatures */
4319 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4320 callsig = cctor_signature;
4321 target_klass = mono_defaults.object_class;
4322 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4323 callsig = finalize_signature;
4324 target_klass = mono_defaults.object_class;
4327 if (need_direct_wrapper) {
4328 /* Already searched at the start */
4330 MonoMethodSignature *tmp_sig;
4332 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4333 GHashTable **cache_table = NULL;
4335 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4336 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4338 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4340 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4341 (GCompareFunc)runtime_invoke_signature_equal);
4343 /* from mono_marshal_find_in_cache */
4344 mono_marshal_lock ();
4345 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4346 mono_marshal_unlock ();
4353 /* Make a copy of the signature from the image mempool */
4355 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4359 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4361 csig->ret = &mono_defaults.object_class->byval_arg;
4362 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4363 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4365 csig->params [0] = &mono_defaults.object_class->byval_arg;
4366 csig->params [1] = &mono_defaults.int_class->byval_arg;
4367 csig->params [2] = &mono_defaults.int_class->byval_arg;
4368 csig->params [3] = &mono_defaults.int_class->byval_arg;
4371 /* This is called from runtime code so it has to be cdecl */
4372 csig->call_convention = MONO_CALL_C;
4375 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4376 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4380 param_names [0] = "this";
4381 param_names [1] = "params";
4382 param_names [2] = "exc";
4383 param_names [3] = "method";
4384 mono_mb_set_param_names (mb, param_names);
4386 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4389 if (need_direct_wrapper) {
4391 mb->skip_visibility = 1;
4393 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4394 info->d.runtime_invoke.method = method;
4395 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4397 /* taken from mono_mb_create_and_cache */
4398 mono_marshal_lock ();
4399 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4400 mono_marshal_unlock ();
4402 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4403 info->d.runtime_invoke.sig = callsig;
4405 /* Somebody may have created it before us */
4408 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4410 mono_marshal_lock ();
4411 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4413 GHashTable *direct_cache;
4415 g_hash_table_insert (cache, callsig, res);
4416 /* Can't insert it into wrapper_hash since the key is a signature */
4417 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4419 g_hash_table_insert (direct_cache, method, res);
4421 mono_free_method (newm);
4423 mono_marshal_unlock ();
4426 /* end mono_mb_create_and_cache */
4435 * mono_marshal_get_runtime_invoke_dynamic:
4437 * Return a method which can be used to invoke managed methods from native code
4439 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4440 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4441 * ARGS should point to an architecture specific structure containing
4442 * the arguments and space for the return value.
4443 * The other arguments are the same as for runtime_invoke (), except that
4444 * ARGS should contain the this argument too.
4445 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4446 * is only one copy of it, which is useful in full-aot.
4449 mono_marshal_get_runtime_invoke_dynamic (void)
4451 static MonoMethod *method;
4452 MonoMethodSignature *csig;
4453 MonoExceptionClause *clause;
4454 MonoMethodBuilder *mb;
4462 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4464 csig->ret = &mono_defaults.void_class->byval_arg;
4465 csig->params [0] = &mono_defaults.int_class->byval_arg;
4466 csig->params [1] = &mono_defaults.int_class->byval_arg;
4467 csig->params [2] = &mono_defaults.int_class->byval_arg;
4468 csig->params [3] = &mono_defaults.int_class->byval_arg;
4470 name = g_strdup ("runtime_invoke_dynamic");
4471 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4475 /* allocate local 0 (object) tmp */
4476 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4477 /* allocate local 1 (object) exc */
4478 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4480 /* cond set *exc to null */
4481 mono_mb_emit_byte (mb, CEE_LDARG_1);
4482 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4483 mono_mb_emit_byte (mb, 3);
4484 mono_mb_emit_byte (mb, CEE_LDARG_1);
4485 mono_mb_emit_byte (mb, CEE_LDNULL);
4486 mono_mb_emit_byte (mb, CEE_STIND_REF);
4488 emit_thread_force_interrupt_checkpoint (mb);
4490 mono_mb_emit_byte (mb, CEE_LDARG_0);
4491 mono_mb_emit_byte (mb, CEE_LDARG_2);
4492 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4493 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4495 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4497 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4498 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4499 clause->try_len = mono_mb_get_label (mb);
4502 clause->data.filter_offset = mono_mb_get_label (mb);
4504 mono_mb_emit_byte (mb, CEE_POP);
4505 mono_mb_emit_byte (mb, CEE_LDARG_1);
4506 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4507 mono_mb_emit_byte (mb, CEE_PREFIX1);
4508 mono_mb_emit_byte (mb, CEE_CGT_UN);
4509 mono_mb_emit_byte (mb, CEE_PREFIX1);
4510 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4512 clause->handler_offset = mono_mb_get_label (mb);
4515 /* store exception */
4516 mono_mb_emit_stloc (mb, 1);
4518 mono_mb_emit_byte (mb, CEE_LDARG_1);
4519 mono_mb_emit_ldloc (mb, 1);
4520 mono_mb_emit_byte (mb, CEE_STIND_REF);
4522 mono_mb_emit_byte (mb, CEE_LDNULL);
4523 mono_mb_emit_stloc (mb, 0);
4525 mono_mb_emit_branch (mb, CEE_LEAVE);
4527 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4529 mono_mb_set_clauses (mb, 1, clause);
4532 mono_mb_patch_branch (mb, pos);
4533 //mono_mb_emit_ldloc (mb, 0);
4534 mono_mb_emit_byte (mb, CEE_RET);
4535 #endif /* DISABLE_JIT */
4537 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4539 mono_marshal_lock ();
4540 /* double-checked locking */
4542 method = mono_mb_create (mb, csig, 16, info);
4544 mono_marshal_unlock ();
4552 * mono_marshal_get_runtime_invoke_for_sig:
4554 * Return a runtime invoke wrapper for a given signature.
4557 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4559 MonoMethodSignature *csig, *callsig;
4560 MonoMethodBuilder *mb;
4562 GHashTable *cache = NULL;
4563 GHashTable **cache_table = NULL;
4564 MonoMethod *res = NULL;
4566 const char *param_names [16];
4569 /* A simplified version of mono_marshal_get_runtime_invoke */
4571 image = mono_defaults.corlib;
4573 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4575 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4577 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4578 (GCompareFunc)runtime_invoke_signature_equal);
4580 /* from mono_marshal_find_in_cache */
4581 mono_marshal_lock ();
4582 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4583 mono_marshal_unlock ();
4590 /* Make a copy of the signature from the image mempool */
4591 callsig = mono_metadata_signature_dup_full (image, callsig);
4593 csig = mono_metadata_signature_alloc (image, 4);
4594 csig->ret = &mono_defaults.object_class->byval_arg;
4595 csig->params [0] = &mono_defaults.object_class->byval_arg;
4596 csig->params [1] = &mono_defaults.int_class->byval_arg;
4597 csig->params [2] = &mono_defaults.int_class->byval_arg;
4598 csig->params [3] = &mono_defaults.int_class->byval_arg;
4601 /* This is called from runtime code so it has to be cdecl */
4602 csig->call_convention = MONO_CALL_C;
4605 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4606 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4610 param_names [0] = "this";
4611 param_names [1] = "params";
4612 param_names [2] = "exc";
4613 param_names [3] = "method";
4614 mono_mb_set_param_names (mb, param_names);
4616 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4619 /* taken from mono_mb_create_and_cache */
4620 mono_marshal_lock ();
4621 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4622 mono_marshal_unlock ();
4624 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4625 info->d.runtime_invoke.sig = callsig;
4627 /* Somebody may have created it before us */
4630 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4632 mono_marshal_lock ();
4633 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4636 g_hash_table_insert (cache, callsig, res);
4638 mono_free_method (newm);
4640 mono_marshal_unlock ();
4643 /* end mono_mb_create_and_cache */
4652 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4654 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4655 klass->name_space, klass->name);
4657 mono_mb_emit_exception_marshal_directive (mb, msg);
4662 * mono_marshal_get_icall_wrapper:
4663 * Generates IL code for the icall wrapper. The generated method
4664 * calls the unmanaged code in \p func.
4667 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4669 MonoMethodSignature *csig, *csig2;
4670 MonoMethodBuilder *mb;
4675 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4676 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4679 g_assert (sig->pinvoke);
4681 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4683 mb->method->save_lmf = 1;
4685 /* Add an explicit this argument */
4687 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4689 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4693 mono_mb_emit_byte (mb, CEE_LDARG_0);
4695 for (i = 0; i < sig->param_count; i++)
4696 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4698 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4699 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4700 mono_mb_emit_calli (mb, csig2);
4701 if (check_exceptions)
4702 emit_thread_interrupt_checkpoint (mb);
4703 mono_mb_emit_byte (mb, CEE_RET);
4706 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4708 if (csig->call_convention == MONO_CALL_VARARG)
4709 csig->call_convention = 0;
4711 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4712 info->d.icall.func = (gpointer)func;
4713 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4720 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4721 MonoMarshalSpec *spec,
4722 int conv_arg, MonoType **conv_arg_type,
4723 MarshalAction action)
4726 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4727 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4733 static MonoClass *ICustomMarshaler = NULL;
4734 static MonoMethod *cleanup_native, *cleanup_managed;
4735 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4736 MonoMethod *get_instance = NULL;
4737 MonoMethodBuilder *mb = m->mb;
4738 char *exception_msg = NULL;
4742 if (!ICustomMarshaler) {
4743 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4745 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4746 goto handle_exception;
4749 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4750 g_assert (cleanup_native);
4751 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4752 g_assert (cleanup_managed);
4753 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4754 g_assert (marshal_managed_to_native);
4755 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4756 g_assert (marshal_native_to_managed);
4758 mono_memory_barrier ();
4759 ICustomMarshaler = klass;
4762 if (spec->data.custom_data.image)
4763 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4765 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4766 g_assert (mtype != NULL);
4767 mono_error_assert_ok (&error);
4768 mklass = mono_class_from_mono_type (mtype);
4769 g_assert (mklass != NULL);
4771 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4772 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4774 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4776 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4777 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4778 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4779 (get_sig->params [0]->type != MONO_TYPE_STRING))
4780 get_instance = NULL;
4784 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);
4787 /* Throw exception and emit compensation code if neccesary */
4788 if (exception_msg) {
4790 case MARSHAL_ACTION_CONV_IN:
4791 case MARSHAL_ACTION_CONV_RESULT:
4792 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4793 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4794 mono_mb_emit_byte (mb, CEE_POP);
4796 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4799 case MARSHAL_ACTION_PUSH:
4800 mono_mb_emit_byte (mb, CEE_LDNULL);
4808 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4809 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4812 case MARSHAL_ACTION_CONV_IN:
4814 case MONO_TYPE_CLASS:
4815 case MONO_TYPE_OBJECT:
4816 case MONO_TYPE_STRING:
4817 case MONO_TYPE_ARRAY:
4818 case MONO_TYPE_SZARRAY:
4819 case MONO_TYPE_VALUETYPE:
4823 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4824 g_assert_not_reached ();
4828 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4830 mono_mb_emit_byte (mb, CEE_LDNULL);
4831 mono_mb_emit_stloc (mb, conv_arg);
4833 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4836 /* Minic MS.NET behavior */
4837 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4840 /* Check for null */
4841 mono_mb_emit_ldarg (mb, argnum);
4843 mono_mb_emit_byte (mb, CEE_LDIND_I);
4844 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4846 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4848 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4850 mono_mb_emit_ldarg (mb, argnum);
4852 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4854 if (t->type == MONO_TYPE_VALUETYPE) {
4856 * Since we can't determine the type of the argument, we
4857 * will assume the unmanaged function takes a pointer.
4859 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4861 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4864 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4865 mono_mb_emit_stloc (mb, conv_arg);
4867 mono_mb_patch_branch (mb, pos2);
4870 case MARSHAL_ACTION_CONV_OUT:
4871 /* Check for null */
4872 mono_mb_emit_ldloc (mb, conv_arg);
4873 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4876 mono_mb_emit_ldarg (mb, argnum);
4878 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4880 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4882 mono_mb_emit_ldloc (mb, conv_arg);
4883 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4884 mono_mb_emit_byte (mb, CEE_STIND_REF);
4885 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4886 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4888 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4890 mono_mb_emit_ldloc (mb, conv_arg);
4891 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4893 /* We have nowhere to store the result */
4894 mono_mb_emit_byte (mb, CEE_POP);
4897 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4899 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4901 mono_mb_emit_ldloc (mb, conv_arg);
4903 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4905 mono_mb_patch_branch (mb, pos2);
4908 case MARSHAL_ACTION_PUSH:
4910 mono_mb_emit_ldloc_addr (mb, conv_arg);
4912 mono_mb_emit_ldloc (mb, conv_arg);
4915 case MARSHAL_ACTION_CONV_RESULT:
4916 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4918 mono_mb_emit_stloc (mb, 3);
4920 mono_mb_emit_ldloc (mb, 3);
4921 mono_mb_emit_stloc (mb, loc1);
4923 /* Check for null */
4924 mono_mb_emit_ldloc (mb, 3);
4925 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4927 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4929 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4930 mono_mb_emit_byte (mb, CEE_DUP);
4932 mono_mb_emit_ldloc (mb, 3);
4933 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4934 mono_mb_emit_stloc (mb, 3);
4936 mono_mb_emit_ldloc (mb, loc1);
4937 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4939 mono_mb_patch_branch (mb, pos2);
4942 case MARSHAL_ACTION_MANAGED_CONV_IN:
4943 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4945 mono_mb_emit_byte (mb, CEE_LDNULL);
4946 mono_mb_emit_stloc (mb, conv_arg);
4948 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4951 /* Check for null */
4952 mono_mb_emit_ldarg (mb, argnum);
4954 mono_mb_emit_byte (mb, CEE_LDIND_I);
4955 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4957 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4958 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4960 mono_mb_emit_ldarg (mb, argnum);
4962 mono_mb_emit_byte (mb, CEE_LDIND_I);
4964 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4965 mono_mb_emit_stloc (mb, conv_arg);
4967 mono_mb_patch_branch (mb, pos2);
4970 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4971 g_assert (!t->byref);
4973 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4975 mono_mb_emit_stloc (mb, 3);
4977 mono_mb_emit_ldloc (mb, 3);
4978 mono_mb_emit_stloc (mb, loc1);
4980 /* Check for null */
4981 mono_mb_emit_ldloc (mb, 3);
4982 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4984 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4985 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4986 mono_mb_emit_byte (mb, CEE_DUP);
4988 mono_mb_emit_ldloc (mb, 3);
4989 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4990 mono_mb_emit_stloc (mb, 3);
4992 mono_mb_emit_ldloc (mb, loc1);
4993 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4995 mono_mb_patch_branch (mb, pos2);
4998 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5000 /* Check for null */
5001 mono_mb_emit_ldloc (mb, conv_arg);
5002 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5005 mono_mb_emit_ldarg (mb, argnum);
5007 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5009 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5011 mono_mb_emit_ldloc (mb, conv_arg);
5012 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5013 mono_mb_emit_byte (mb, CEE_STIND_I);
5016 /* Call CleanUpManagedData */
5017 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5019 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5021 mono_mb_emit_ldloc (mb, conv_arg);
5022 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5024 mono_mb_patch_branch (mb, pos2);
5028 g_assert_not_reached ();
5036 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5037 MonoMarshalSpec *spec,
5038 int conv_arg, MonoType **conv_arg_type,
5039 MarshalAction action)
5042 MonoMethodBuilder *mb = m->mb;
5045 case MARSHAL_ACTION_CONV_IN: {
5046 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5048 g_assert (t->type == MONO_TYPE_OBJECT);
5049 g_assert (!t->byref);
5051 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5052 mono_mb_emit_ldarg (mb, argnum);
5053 mono_mb_emit_icon (mb, encoding);
5054 mono_mb_emit_icon (mb, t->attrs);
5055 mono_mb_emit_icall (mb, mono_marshal_asany);
5056 mono_mb_emit_stloc (mb, conv_arg);
5060 case MARSHAL_ACTION_PUSH:
5061 mono_mb_emit_ldloc (mb, conv_arg);
5064 case MARSHAL_ACTION_CONV_OUT: {
5065 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5067 mono_mb_emit_ldarg (mb, argnum);
5068 mono_mb_emit_ldloc (mb, conv_arg);
5069 mono_mb_emit_icon (mb, encoding);
5070 mono_mb_emit_icon (mb, t->attrs);
5071 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5076 g_assert_not_reached ();
5083 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5084 MonoMarshalSpec *spec,
5085 int conv_arg, MonoType **conv_arg_type,
5086 MarshalAction action)
5089 MonoMethodBuilder *mb = m->mb;
5090 MonoClass *klass, *date_time_class;
5093 klass = mono_class_from_mono_type (t);
5095 date_time_class = mono_class_get_date_time_class ();
5098 case MARSHAL_ACTION_CONV_IN:
5099 if (klass == date_time_class) {
5100 /* Convert it to an OLE DATE type */
5101 static MonoMethod *to_oadate;
5104 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5105 g_assert (to_oadate);
5107 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5110 mono_mb_emit_ldarg (mb, argnum);
5111 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5114 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5116 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5118 mono_mb_emit_ldarg_addr (mb, argnum);
5119 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5120 mono_mb_emit_stloc (mb, conv_arg);
5124 mono_mb_patch_branch (mb, pos);
5128 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5131 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5133 /* store the address of the source into local variable 0 */
5135 mono_mb_emit_ldarg (mb, argnum);
5137 mono_mb_emit_ldarg_addr (mb, argnum);
5139 mono_mb_emit_stloc (mb, 0);
5141 /* allocate space for the native struct and
5142 * store the address into local variable 1 (dest) */
5143 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5144 mono_mb_emit_byte (mb, CEE_PREFIX1);
5145 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5146 mono_mb_emit_stloc (mb, conv_arg);
5149 mono_mb_emit_ldloc (mb, 0);
5150 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5153 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5155 mono_mb_emit_ldloc (mb, conv_arg);
5156 mono_mb_emit_stloc (mb, 1);
5158 /* emit valuetype conversion code */
5159 emit_struct_conv (mb, klass, FALSE);
5163 mono_mb_patch_branch (mb, pos);
5166 case MARSHAL_ACTION_PUSH:
5167 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5169 g_assert (!t->byref);
5171 /* Have to change the signature since the vtype is passed byref */
5172 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5174 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5175 mono_mb_emit_ldarg_addr (mb, argnum);
5177 mono_mb_emit_ldloc (mb, conv_arg);
5181 if (klass == date_time_class) {
5183 mono_mb_emit_ldloc_addr (mb, conv_arg);
5185 mono_mb_emit_ldloc (mb, conv_arg);
5189 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5190 mono_mb_emit_ldarg (mb, argnum);
5193 mono_mb_emit_ldloc (mb, conv_arg);
5195 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5196 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5200 case MARSHAL_ACTION_CONV_OUT:
5201 if (klass == date_time_class) {
5202 /* Convert from an OLE DATE type */
5203 static MonoMethod *from_oadate;
5208 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5210 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5211 g_assert (from_oadate);
5213 mono_mb_emit_ldarg (mb, argnum);
5214 mono_mb_emit_ldloc (mb, conv_arg);
5215 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5216 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5221 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5225 /* dst = argument */
5226 mono_mb_emit_ldarg (mb, argnum);
5227 mono_mb_emit_stloc (mb, 1);
5229 mono_mb_emit_ldloc (mb, 1);
5230 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5232 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5233 /* src = tmp_locals [i] */
5234 mono_mb_emit_ldloc (mb, conv_arg);
5235 mono_mb_emit_stloc (mb, 0);
5237 /* emit valuetype conversion code */
5238 emit_struct_conv (mb, klass, TRUE);
5242 emit_struct_free (mb, klass, conv_arg);
5245 mono_mb_patch_branch (mb, pos);
5248 case MARSHAL_ACTION_CONV_RESULT:
5249 if (mono_class_is_explicit_layout (klass) || klass->blittable) {
5250 mono_mb_emit_stloc (mb, 3);
5254 /* load pointer to returned value type */
5255 g_assert (m->vtaddr_var);
5256 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5257 /* store the address of the source into local variable 0 */
5258 mono_mb_emit_stloc (mb, 0);
5260 mono_mb_emit_ldloc_addr (mb, 3);
5261 mono_mb_emit_stloc (mb, 1);
5263 /* emit valuetype conversion code */
5264 emit_struct_conv (mb, klass, TRUE);
5267 case MARSHAL_ACTION_MANAGED_CONV_IN:
5268 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5273 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5275 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5279 mono_mb_emit_ldarg (mb, argnum);
5281 mono_mb_emit_ldarg_addr (mb, argnum);
5282 mono_mb_emit_stloc (mb, 0);
5285 mono_mb_emit_ldloc (mb, 0);
5286 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5289 mono_mb_emit_ldloc_addr (mb, conv_arg);
5290 mono_mb_emit_stloc (mb, 1);
5292 /* emit valuetype conversion code */
5293 emit_struct_conv (mb, klass, TRUE);
5296 mono_mb_patch_branch (mb, pos);
5299 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5300 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5302 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5305 /* Check for null */
5306 mono_mb_emit_ldarg (mb, argnum);
5307 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5310 mono_mb_emit_ldloc_addr (mb, conv_arg);
5311 mono_mb_emit_stloc (mb, 0);
5314 mono_mb_emit_ldarg (mb, argnum);
5315 mono_mb_emit_stloc (mb, 1);
5317 /* emit valuetype conversion code */
5318 emit_struct_conv (mb, klass, FALSE);
5320 mono_mb_patch_branch (mb, pos2);
5323 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5324 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5325 mono_mb_emit_stloc (mb, 3);
5330 /* load pointer to returned value type */
5331 g_assert (m->vtaddr_var);
5332 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5334 /* store the address of the source into local variable 0 */
5335 mono_mb_emit_stloc (mb, 0);
5336 /* allocate space for the native struct and
5337 * store the address into dst_ptr */
5338 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5339 m->retobj_class = klass;
5340 g_assert (m->retobj_var);
5341 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5342 mono_mb_emit_byte (mb, CEE_CONV_I);
5343 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5344 mono_mb_emit_stloc (mb, 1);
5345 mono_mb_emit_ldloc (mb, 1);
5346 mono_mb_emit_stloc (mb, m->retobj_var);
5348 /* emit valuetype conversion code */
5349 emit_struct_conv (mb, klass, FALSE);
5353 g_assert_not_reached ();
5360 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5361 MonoMarshalSpec *spec,
5362 int conv_arg, MonoType **conv_arg_type,
5363 MarshalAction action)
5367 case MARSHAL_ACTION_CONV_IN:
5368 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5370 case MARSHAL_ACTION_MANAGED_CONV_IN:
5371 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5375 MonoMethodBuilder *mb = m->mb;
5376 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5377 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5381 case MARSHAL_ACTION_CONV_IN:
5382 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5383 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5386 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5389 mono_mb_emit_ldarg (mb, argnum);
5390 mono_mb_emit_byte (mb, CEE_LDIND_I);
5392 mono_mb_emit_ldarg (mb, argnum);
5395 if (conv == MONO_MARSHAL_CONV_INVALID) {
5396 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5397 mono_mb_emit_exception_marshal_directive (mb, msg);
5399 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5401 mono_mb_emit_stloc (mb, conv_arg);
5405 case MARSHAL_ACTION_CONV_OUT:
5406 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5407 if (conv == MONO_MARSHAL_CONV_INVALID) {
5408 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5409 mono_mb_emit_exception_marshal_directive (mb, msg);
5413 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5414 static MonoMethod *m;
5417 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5422 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5423 mono_mb_emit_exception_marshal_directive (mb, msg);
5428 * Have to allocate a new string with the same length as the original, and
5429 * copy the contents of the buffer pointed to by CONV_ARG into it.
5431 g_assert (t->byref);
5432 mono_mb_emit_ldarg (mb, argnum);
5433 mono_mb_emit_ldloc (mb, conv_arg);
5434 mono_mb_emit_ldarg (mb, argnum);
5435 mono_mb_emit_byte (mb, CEE_LDIND_I);
5436 mono_mb_emit_managed_call (mb, m, NULL);
5437 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5438 mono_mb_emit_byte (mb, CEE_STIND_REF);
5439 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5441 mono_mb_emit_ldarg (mb, argnum);
5442 mono_mb_emit_ldloc (mb, conv_arg);
5443 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5444 mono_mb_emit_byte (mb, stind_op);
5449 mono_mb_emit_ldloc (mb, conv_arg);
5450 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5451 mono_mb_emit_icall (mb, mono_free_bstr);
5453 mono_mb_emit_icall (mb, mono_marshal_free);
5457 case MARSHAL_ACTION_PUSH:
5458 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5459 mono_mb_emit_ldloc_addr (mb, conv_arg);
5461 mono_mb_emit_ldloc (mb, conv_arg);
5464 case MARSHAL_ACTION_CONV_RESULT:
5465 mono_mb_emit_stloc (mb, 0);
5467 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5468 if (conv == MONO_MARSHAL_CONV_INVALID) {
5469 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5470 mono_mb_emit_exception_marshal_directive (mb, msg);
5474 mono_mb_emit_ldloc (mb, 0);
5475 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5476 mono_mb_emit_stloc (mb, 3);
5478 /* free the string */
5479 mono_mb_emit_ldloc (mb, 0);
5480 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5481 mono_mb_emit_icall (mb, mono_free_bstr);
5483 mono_mb_emit_icall (mb, mono_marshal_free);
5486 case MARSHAL_ACTION_MANAGED_CONV_IN:
5487 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5489 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5492 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5496 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5497 if (conv == MONO_MARSHAL_CONV_INVALID) {
5498 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5499 mono_mb_emit_exception_marshal_directive (mb, msg);
5503 mono_mb_emit_ldarg (mb, argnum);
5505 mono_mb_emit_byte (mb, CEE_LDIND_I);
5506 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5507 mono_mb_emit_stloc (mb, conv_arg);
5510 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5514 mono_mb_emit_ldarg (mb, argnum);
5515 mono_mb_emit_ldloc (mb, conv_arg);
5516 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5517 mono_mb_emit_byte (mb, stind_op);
5522 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5523 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5524 /* We need to make a copy so the caller is able to free it */
5525 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5527 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5528 mono_mb_emit_stloc (mb, 3);
5532 g_assert_not_reached ();
5540 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5541 MonoMarshalSpec *spec, int conv_arg,
5542 MonoType **conv_arg_type, MarshalAction action)
5545 if (action == MARSHAL_ACTION_CONV_IN)
5546 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5548 MonoMethodBuilder *mb = m->mb;
5551 case MARSHAL_ACTION_CONV_IN: {
5552 MonoType *intptr_type;
5553 int dar_release_slot, pos;
5555 intptr_type = &mono_defaults.int_class->byval_arg;
5556 conv_arg = mono_mb_add_local (mb, intptr_type);
5557 *conv_arg_type = intptr_type;
5559 if (!sh_dangerous_add_ref)
5560 init_safe_handle ();
5562 mono_mb_emit_ldarg (mb, argnum);
5563 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5564 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5566 mono_mb_patch_branch (mb, pos);
5569 * My tests in show that ref SafeHandles are not really
5570 * passed as ref objects. Instead a NULL is passed as the
5573 mono_mb_emit_icon (mb, 0);
5574 mono_mb_emit_stloc (mb, conv_arg);
5578 /* Create local to hold the ref parameter to DangerousAddRef */
5579 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5581 /* set release = false; */
5582 mono_mb_emit_icon (mb, 0);
5583 mono_mb_emit_stloc (mb, dar_release_slot);
5585 /* safehandle.DangerousAddRef (ref release) */
5586 mono_mb_emit_ldarg (mb, argnum);
5587 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5588 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5590 /* Pull the handle field from SafeHandle */
5591 mono_mb_emit_ldarg (mb, argnum);
5592 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5593 mono_mb_emit_byte (mb, CEE_LDIND_I);
5594 mono_mb_emit_stloc (mb, conv_arg);
5599 case MARSHAL_ACTION_PUSH:
5601 mono_mb_emit_ldloc_addr (mb, conv_arg);
5603 mono_mb_emit_ldloc (mb, conv_arg);
5606 case MARSHAL_ACTION_CONV_OUT: {
5607 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5608 int dar_release_slot = conv_arg + 1;
5611 if (!sh_dangerous_release)
5612 init_safe_handle ();
5618 * My tests indicate that ref SafeHandles parameters are not actually
5619 * passed by ref, but instead a new Handle is created regardless of
5620 * whether a change happens in the unmanaged side.
5622 * Also, the Handle is created before calling into unmanaged code,
5623 * but we do not support that mechanism (getting to the original
5624 * handle) and it makes no difference where we create this
5626 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5628 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5631 /* refval = new SafeHandleDerived ()*/
5632 mono_mb_emit_ldarg (mb, argnum);
5633 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5634 mono_mb_emit_byte (mb, CEE_STIND_REF);
5636 /* refval.handle = returned_handle */
5637 mono_mb_emit_ldarg (mb, argnum);
5638 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5639 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5640 mono_mb_emit_ldloc (mb, conv_arg);
5641 mono_mb_emit_byte (mb, CEE_STIND_I);
5643 mono_mb_emit_ldloc (mb, dar_release_slot);
5644 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5645 mono_mb_emit_ldarg (mb, argnum);
5646 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5647 mono_mb_patch_branch (mb, label_next);
5652 case MARSHAL_ACTION_CONV_RESULT: {
5653 MonoMethod *ctor = NULL;
5654 int intptr_handle_slot;
5656 if (mono_class_is_abstract (t->data.klass)) {
5657 mono_mb_emit_byte (mb, CEE_POP);
5658 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5662 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5664 mono_mb_emit_byte (mb, CEE_POP);
5665 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5668 /* Store the IntPtr results into a local */
5669 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5670 mono_mb_emit_stloc (mb, intptr_handle_slot);
5672 /* Create return value */
5673 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5674 mono_mb_emit_stloc (mb, 3);
5676 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5677 mono_mb_emit_ldloc (mb, 3);
5678 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5679 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5680 mono_mb_emit_byte (mb, CEE_STIND_I);
5684 case MARSHAL_ACTION_MANAGED_CONV_IN:
5685 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5688 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5689 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5692 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5693 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5696 printf ("Unhandled case for MarshalAction: %d\n", action);
5704 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5705 MonoMarshalSpec *spec, int conv_arg,
5706 MonoType **conv_arg_type, MarshalAction action)
5709 if (action == MARSHAL_ACTION_CONV_IN)
5710 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5712 MonoMethodBuilder *mb = m->mb;
5715 case MARSHAL_ACTION_CONV_IN: {
5716 MonoType *intptr_type;
5718 intptr_type = &mono_defaults.int_class->byval_arg;
5719 conv_arg = mono_mb_add_local (mb, intptr_type);
5720 *conv_arg_type = intptr_type;
5723 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5724 mono_mb_emit_exception_marshal_directive (mb, msg);
5727 mono_mb_emit_ldarg_addr (mb, argnum);
5728 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5729 mono_mb_emit_byte (mb, CEE_ADD);
5730 mono_mb_emit_byte (mb, CEE_LDIND_I);
5731 mono_mb_emit_stloc (mb, conv_arg);
5735 case MARSHAL_ACTION_PUSH:
5736 mono_mb_emit_ldloc (mb, conv_arg);
5739 case MARSHAL_ACTION_CONV_OUT: {
5740 /* no resource release required */
5744 case MARSHAL_ACTION_CONV_RESULT: {
5745 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5746 mono_mb_emit_exception_marshal_directive (mb, msg);
5750 case MARSHAL_ACTION_MANAGED_CONV_IN:
5751 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5754 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5755 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5758 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5759 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5762 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5770 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5771 MonoMarshalSpec *spec,
5772 int conv_arg, MonoType **conv_arg_type,
5773 MarshalAction action)
5776 if (action == MARSHAL_ACTION_CONV_IN)
5777 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5779 MonoMethodBuilder *mb = m->mb;
5780 MonoClass *klass = mono_class_from_mono_type (t);
5784 case MARSHAL_ACTION_CONV_IN:
5785 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5786 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5788 m->orig_conv_args [argnum] = 0;
5790 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5791 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5792 mono_mb_emit_exception_marshal_directive (mb, msg);
5796 if (klass->delegate) {
5798 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5799 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5800 mono_mb_emit_exception_marshal_directive (mb, msg);
5802 mono_mb_emit_byte (mb, CEE_LDNULL);
5803 mono_mb_emit_stloc (mb, conv_arg);
5805 mono_mb_emit_ldarg (mb, argnum);
5806 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5807 mono_mb_emit_stloc (mb, conv_arg);
5809 } else if (klass == mono_defaults.stringbuilder_class) {
5810 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5811 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5815 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5816 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5817 mono_mb_emit_exception_marshal_directive (mb, msg);
5823 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5826 if (conv == MONO_MARSHAL_CONV_INVALID) {
5827 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5828 mono_mb_emit_exception_marshal_directive (mb, msg);
5832 mono_mb_emit_ldarg (mb, argnum);
5834 mono_mb_emit_byte (mb, CEE_LDIND_I);
5836 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5837 mono_mb_emit_stloc (mb, conv_arg);
5838 } else if (klass->blittable) {
5839 mono_mb_emit_byte (mb, CEE_LDNULL);
5840 mono_mb_emit_stloc (mb, conv_arg);
5842 mono_mb_emit_ldarg (mb, argnum);
5843 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5845 mono_mb_emit_ldarg (mb, argnum);
5846 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5847 mono_mb_emit_stloc (mb, conv_arg);
5849 mono_mb_patch_branch (mb, pos);
5852 mono_mb_emit_byte (mb, CEE_LDNULL);
5853 mono_mb_emit_stloc (mb, conv_arg);
5856 /* we dont need any conversions for out parameters */
5857 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5860 mono_mb_emit_ldarg (mb, argnum);
5861 mono_mb_emit_byte (mb, CEE_LDIND_I);
5864 mono_mb_emit_ldarg (mb, argnum);
5865 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5866 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5869 /* store the address of the source into local variable 0 */
5870 mono_mb_emit_stloc (mb, 0);
5871 mono_mb_emit_ldloc (mb, 0);
5872 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5874 /* allocate space for the native struct and store the address */
5875 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5876 mono_mb_emit_byte (mb, CEE_PREFIX1);
5877 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5878 mono_mb_emit_stloc (mb, conv_arg);
5881 /* Need to store the original buffer so we can free it later */
5882 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5883 mono_mb_emit_ldloc (mb, conv_arg);
5884 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5887 /* set the src_ptr */
5888 mono_mb_emit_ldloc (mb, 0);
5889 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5890 mono_mb_emit_stloc (mb, 0);
5893 mono_mb_emit_ldloc (mb, conv_arg);
5894 mono_mb_emit_stloc (mb, 1);
5896 /* emit valuetype conversion code */
5897 emit_struct_conv (mb, klass, FALSE);
5899 mono_mb_patch_branch (mb, pos);
5903 case MARSHAL_ACTION_CONV_OUT:
5904 if (klass == mono_defaults.stringbuilder_class) {
5906 MonoMarshalNative encoding;
5907 MonoMarshalConv conv;
5909 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5910 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5912 g_assert (encoding != -1);
5915 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5919 mono_mb_emit_ldarg (mb, argnum);
5920 mono_mb_emit_ldloc (mb, conv_arg);
5923 case MONO_NATIVE_LPWSTR:
5924 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5926 case MONO_NATIVE_LPSTR:
5927 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5929 case MONO_NATIVE_UTF8STR:
5930 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5933 g_assert_not_reached ();
5936 mono_mb_emit_byte (mb, CEE_STIND_REF);
5938 mono_mb_emit_ldarg (mb, argnum);
5939 mono_mb_emit_ldloc (mb, conv_arg);
5941 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5945 mono_mb_emit_ldloc (mb, conv_arg);
5946 mono_mb_emit_icall (mb, mono_marshal_free);
5951 if (klass->delegate) {
5953 mono_mb_emit_ldarg (mb, argnum);
5954 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5955 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5956 mono_mb_emit_ldloc (mb, conv_arg);
5957 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5958 mono_mb_emit_byte (mb, CEE_STIND_REF);
5963 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5964 /* allocate a new object */
5965 mono_mb_emit_ldarg (mb, argnum);
5966 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5967 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5968 mono_mb_emit_byte (mb, CEE_STIND_REF);
5971 /* dst = *argument */
5972 mono_mb_emit_ldarg (mb, argnum);
5975 mono_mb_emit_byte (mb, CEE_LDIND_I);
5977 mono_mb_emit_stloc (mb, 1);
5979 mono_mb_emit_ldloc (mb, 1);
5980 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5982 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5983 mono_mb_emit_ldloc (mb, 1);
5984 mono_mb_emit_icon (mb, sizeof (MonoObject));
5985 mono_mb_emit_byte (mb, CEE_ADD);
5986 mono_mb_emit_stloc (mb, 1);
5988 /* src = tmp_locals [i] */
5989 mono_mb_emit_ldloc (mb, conv_arg);
5990 mono_mb_emit_stloc (mb, 0);
5992 /* emit valuetype conversion code */
5993 emit_struct_conv (mb, klass, TRUE);
5995 /* Free the structure returned by the native code */
5996 emit_struct_free (mb, klass, conv_arg);
5998 if (m->orig_conv_args [argnum]) {
6000 * If the native function changed the pointer, then free
6001 * the original structure plus the new pointer.
6003 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6004 mono_mb_emit_ldloc (mb, conv_arg);
6005 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6007 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6008 g_assert (m->orig_conv_args [argnum]);
6010 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6013 mono_mb_emit_ldloc (mb, conv_arg);
6014 mono_mb_emit_icall (mb, mono_marshal_free);
6016 mono_mb_patch_branch (mb, pos2);
6020 /* Free the original structure passed to native code */
6021 emit_struct_free (mb, klass, conv_arg);
6023 mono_mb_patch_branch (mb, pos);
6026 case MARSHAL_ACTION_PUSH:
6028 mono_mb_emit_ldloc_addr (mb, conv_arg);
6030 mono_mb_emit_ldloc (mb, conv_arg);
6033 case MARSHAL_ACTION_CONV_RESULT:
6034 if (klass->delegate) {
6035 g_assert (!t->byref);
6036 mono_mb_emit_stloc (mb, 0);
6037 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6038 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6039 mono_mb_emit_ldloc (mb, 0);
6040 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6041 mono_mb_emit_stloc (mb, 3);
6042 } else if (klass == mono_defaults.stringbuilder_class){
6046 mono_mb_emit_stloc (mb, 0);
6048 /* Make a copy since emit_conv modifies local 0 */
6049 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6050 mono_mb_emit_ldloc (mb, 0);
6051 mono_mb_emit_stloc (mb, loc);
6053 mono_mb_emit_byte (mb, CEE_LDNULL);
6054 mono_mb_emit_stloc (mb, 3);
6056 mono_mb_emit_ldloc (mb, 0);
6057 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6059 /* allocate result object */
6061 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6062 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6063 mono_mb_emit_stloc (mb, 3);
6067 mono_mb_emit_ldloc (mb, 3);
6068 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6069 mono_mb_emit_stloc (mb, 1);
6071 /* emit conversion code */
6072 emit_struct_conv (mb, klass, TRUE);
6074 emit_struct_free (mb, klass, loc);
6076 /* Free the pointer allocated by unmanaged code */
6077 mono_mb_emit_ldloc (mb, loc);
6078 mono_mb_emit_icall (mb, mono_marshal_free);
6079 mono_mb_patch_branch (mb, pos);
6083 case MARSHAL_ACTION_MANAGED_CONV_IN:
6084 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6086 if (klass->delegate) {
6087 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6088 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6089 mono_mb_emit_ldarg (mb, argnum);
6091 mono_mb_emit_byte (mb, CEE_LDIND_I);
6092 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6093 mono_mb_emit_stloc (mb, conv_arg);
6097 if (klass == mono_defaults.stringbuilder_class) {
6098 MonoMarshalNative encoding;
6100 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6103 g_assert (encoding == MONO_NATIVE_LPSTR || encoding == MONO_NATIVE_UTF8STR);
6105 g_assert (!t->byref);
6106 g_assert (encoding != -1);
6108 mono_mb_emit_ldarg (mb, argnum);
6109 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6110 mono_mb_emit_stloc (mb, conv_arg);
6114 /* The class can not have an automatic layout */
6115 if (mono_class_is_auto_layout (klass)) {
6116 mono_mb_emit_auto_layout_exception (mb, klass);
6120 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6121 mono_mb_emit_byte (mb, CEE_LDNULL);
6122 mono_mb_emit_stloc (mb, conv_arg);
6127 mono_mb_emit_ldarg (mb, argnum);
6131 /* Check for NULL and raise an exception */
6132 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6134 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6136 mono_mb_patch_branch (mb, pos2);
6137 mono_mb_emit_ldarg (mb, argnum);
6138 mono_mb_emit_byte (mb, CEE_LDIND_I);
6141 mono_mb_emit_stloc (mb, 0);
6143 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6144 mono_mb_emit_stloc (mb, conv_arg);
6146 mono_mb_emit_ldloc (mb, 0);
6147 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6149 /* Create and set dst */
6150 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6151 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6152 mono_mb_emit_stloc (mb, conv_arg);
6153 mono_mb_emit_ldloc (mb, conv_arg);
6154 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6155 mono_mb_emit_stloc (mb, 1);
6157 /* emit valuetype conversion code */
6158 emit_struct_conv (mb, klass, TRUE);
6160 mono_mb_patch_branch (mb, pos);
6163 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6164 if (klass->delegate) {
6167 mono_mb_emit_ldarg (mb, argnum);
6168 mono_mb_emit_ldloc (mb, conv_arg);
6169 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
6170 mono_mb_emit_byte (mb, stind_op);
6176 /* Check for null */
6177 mono_mb_emit_ldloc (mb, conv_arg);
6178 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6179 mono_mb_emit_ldarg (mb, argnum);
6180 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6181 mono_mb_emit_byte (mb, CEE_STIND_REF);
6182 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6184 mono_mb_patch_branch (mb, pos);
6187 mono_mb_emit_ldloc (mb, conv_arg);
6188 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6189 mono_mb_emit_stloc (mb, 0);
6191 /* Allocate and set dest */
6192 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6193 mono_mb_emit_byte (mb, CEE_CONV_I);
6194 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6195 mono_mb_emit_stloc (mb, 1);
6197 /* Update argument pointer */
6198 mono_mb_emit_ldarg (mb, argnum);
6199 mono_mb_emit_ldloc (mb, 1);
6200 mono_mb_emit_byte (mb, CEE_STIND_I);
6202 /* emit valuetype conversion code */
6203 emit_struct_conv (mb, klass, FALSE);
6205 mono_mb_patch_branch (mb, pos2);
6206 } else if (klass == mono_defaults.stringbuilder_class) {
6207 // FIXME: What to do here ?
6209 /* byval [Out] marshalling */
6211 /* FIXME: Handle null */
6214 mono_mb_emit_ldloc (mb, conv_arg);
6215 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6216 mono_mb_emit_stloc (mb, 0);
6219 mono_mb_emit_ldarg (mb, argnum);
6220 mono_mb_emit_stloc (mb, 1);
6222 /* emit valuetype conversion code */
6223 emit_struct_conv (mb, klass, FALSE);
6227 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6228 if (klass->delegate) {
6229 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6230 mono_mb_emit_stloc (mb, 3);
6234 /* The class can not have an automatic layout */
6235 if (mono_class_is_auto_layout (klass)) {
6236 mono_mb_emit_auto_layout_exception (mb, klass);
6240 mono_mb_emit_stloc (mb, 0);
6241 /* Check for null */
6242 mono_mb_emit_ldloc (mb, 0);
6243 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6244 mono_mb_emit_byte (mb, CEE_LDNULL);
6245 mono_mb_emit_stloc (mb, 3);
6246 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6248 mono_mb_patch_branch (mb, pos);
6251 mono_mb_emit_ldloc (mb, 0);
6252 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6253 mono_mb_emit_stloc (mb, 0);
6255 /* Allocate and set dest */
6256 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6257 mono_mb_emit_byte (mb, CEE_CONV_I);
6258 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6259 mono_mb_emit_byte (mb, CEE_DUP);
6260 mono_mb_emit_stloc (mb, 1);
6261 mono_mb_emit_stloc (mb, 3);
6263 emit_struct_conv (mb, klass, FALSE);
6265 mono_mb_patch_branch (mb, pos2);
6269 g_assert_not_reached ();
6280 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6281 MonoMarshalSpec *spec,
6282 int conv_arg, MonoType **conv_arg_type,
6283 MarshalAction action)
6285 MonoMethodBuilder *mb = m->mb;
6286 static MonoMethod *get_object_for_native_variant = NULL;
6287 static MonoMethod *get_native_variant_for_object = NULL;
6289 if (!get_object_for_native_variant)
6290 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6291 g_assert (get_object_for_native_variant);
6293 if (!get_native_variant_for_object)
6294 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6295 g_assert (get_native_variant_for_object);
6298 case MARSHAL_ACTION_CONV_IN: {
6299 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6302 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6304 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6306 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6309 mono_mb_emit_ldarg (mb, argnum);
6311 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6312 mono_mb_emit_ldloc_addr (mb, conv_arg);
6313 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6317 case MARSHAL_ACTION_CONV_OUT: {
6318 static MonoMethod *variant_clear = NULL;
6321 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6322 g_assert (variant_clear);
6325 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6326 mono_mb_emit_ldarg (mb, argnum);
6327 mono_mb_emit_ldloc_addr (mb, conv_arg);
6328 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6329 mono_mb_emit_byte (mb, CEE_STIND_REF);
6332 mono_mb_emit_ldloc_addr (mb, conv_arg);
6333 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6337 case MARSHAL_ACTION_PUSH:
6339 mono_mb_emit_ldloc_addr (mb, conv_arg);
6341 mono_mb_emit_ldloc (mb, conv_arg);
6344 case MARSHAL_ACTION_CONV_RESULT: {
6345 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6346 mono_mb_emit_exception_marshal_directive (mb, msg);
6350 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6351 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6354 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6356 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6358 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6362 mono_mb_emit_ldarg (mb, argnum);
6364 mono_mb_emit_ldarg_addr (mb, argnum);
6365 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6366 mono_mb_emit_stloc (mb, conv_arg);
6370 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6371 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6372 mono_mb_emit_ldloc (mb, conv_arg);
6373 mono_mb_emit_ldarg (mb, argnum);
6374 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6379 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6380 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6381 mono_mb_emit_exception_marshal_directive (mb, msg);
6386 g_assert_not_reached ();
6392 #endif /* DISABLE_COM */
6393 #endif /* DISABLE_JIT */
6396 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6398 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6399 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6401 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6403 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6415 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6416 MonoMarshalSpec *spec,
6417 int conv_arg, MonoType **conv_arg_type,
6418 MarshalAction action)
6422 case MARSHAL_ACTION_CONV_IN:
6423 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6425 case MARSHAL_ACTION_MANAGED_CONV_IN:
6426 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6430 MonoMethodBuilder *mb = m->mb;
6431 MonoClass *klass = mono_class_from_mono_type (t);
6432 gboolean need_convert, need_free;
6433 MonoMarshalNative encoding;
6435 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6438 case MARSHAL_ACTION_CONV_IN:
6439 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6440 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6442 if (klass->element_class->blittable) {
6443 mono_mb_emit_ldarg (mb, argnum);
6445 mono_mb_emit_byte (mb, CEE_LDIND_I);
6446 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6447 mono_mb_emit_stloc (mb, conv_arg);
6450 guint32 label1, label2, label3;
6451 int index_var, src_var, dest_ptr, esize;
6452 MonoMarshalConv conv;
6453 gboolean is_string = FALSE;
6455 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6457 eklass = klass->element_class;
6459 if (eklass == mono_defaults.string_class) {
6461 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6463 else if (eklass == mono_defaults.stringbuilder_class) {
6465 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6468 conv = MONO_MARSHAL_CONV_INVALID;
6470 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6471 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6472 mono_mb_emit_exception_marshal_directive (mb, msg);
6476 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6477 mono_mb_emit_ldarg (mb, argnum);
6479 mono_mb_emit_byte (mb, CEE_LDIND_I);
6480 mono_mb_emit_stloc (mb, src_var);
6483 mono_mb_emit_ldloc (mb, src_var);
6484 mono_mb_emit_stloc (mb, conv_arg);
6485 mono_mb_emit_ldloc (mb, src_var);
6486 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6489 esize = sizeof (gpointer);
6490 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6491 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6493 esize = mono_class_native_size (eklass, NULL);
6495 /* allocate space for the native struct and store the address */
6496 mono_mb_emit_icon (mb, esize);
6497 mono_mb_emit_ldloc (mb, src_var);
6498 mono_mb_emit_byte (mb, CEE_LDLEN);
6500 if (eklass == mono_defaults.string_class) {
6501 /* Make the array bigger for the terminating null */
6502 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6503 mono_mb_emit_byte (mb, CEE_ADD);
6505 mono_mb_emit_byte (mb, CEE_MUL);
6506 mono_mb_emit_byte (mb, CEE_PREFIX1);
6507 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6508 mono_mb_emit_stloc (mb, conv_arg);
6510 mono_mb_emit_ldloc (mb, conv_arg);
6511 mono_mb_emit_stloc (mb, dest_ptr);
6513 /* Emit marshalling loop */
6514 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6515 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6516 mono_mb_emit_stloc (mb, index_var);
6517 label2 = mono_mb_get_label (mb);
6518 mono_mb_emit_ldloc (mb, index_var);
6519 mono_mb_emit_ldloc (mb, src_var);
6520 mono_mb_emit_byte (mb, CEE_LDLEN);
6521 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6523 /* Emit marshalling code */
6527 mono_mb_emit_ldloc (mb, dest_ptr);
6528 mono_mb_emit_ldloc (mb, src_var);
6529 mono_mb_emit_ldloc (mb, index_var);
6530 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6531 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6532 mono_mb_emit_byte (mb, stind_op);
6534 /* set the src_ptr */
6535 mono_mb_emit_ldloc (mb, src_var);
6536 mono_mb_emit_ldloc (mb, index_var);
6537 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6538 mono_mb_emit_stloc (mb, 0);
6541 mono_mb_emit_ldloc (mb, dest_ptr);
6542 mono_mb_emit_stloc (mb, 1);
6544 /* emit valuetype conversion code */
6545 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6548 mono_mb_emit_add_to_local (mb, index_var, 1);
6549 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6551 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6553 mono_mb_patch_branch (mb, label3);
6555 if (eklass == mono_defaults.string_class) {
6556 /* Null terminate */
6557 mono_mb_emit_ldloc (mb, dest_ptr);
6558 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6559 mono_mb_emit_byte (mb, CEE_STIND_REF);
6562 mono_mb_patch_branch (mb, label1);
6567 case MARSHAL_ACTION_CONV_OUT:
6568 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6569 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);
6570 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6573 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6574 int param_num = spec->data.array_data.param_num;
6575 MonoType *param_type;
6577 param_type = m->sig->params [param_num];
6579 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6580 char *msg = g_strdup ("Not implemented.");
6581 mono_mb_emit_exception_marshal_directive (mb, msg);
6586 mono_mb_emit_ldarg (mb, argnum);
6588 /* Create the managed array */
6589 mono_mb_emit_ldarg (mb, param_num);
6590 if (m->sig->params [param_num]->byref)
6591 // FIXME: Support other types
6592 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6593 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6594 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6595 /* Store into argument */
6596 mono_mb_emit_byte (mb, CEE_STIND_REF);
6600 if (need_convert || need_free) {
6601 /* FIXME: Optimize blittable case */
6603 guint32 label1, label2, label3;
6604 int index_var, src_ptr, loc, esize;
6606 eklass = klass->element_class;
6607 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6608 esize = sizeof (gpointer);
6609 else if (eklass == mono_defaults.char_class)
6610 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6612 esize = mono_class_native_size (eklass, NULL);
6613 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6614 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6617 mono_mb_emit_ldarg (mb, argnum);
6619 mono_mb_emit_byte (mb, CEE_LDIND_I);
6620 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6622 mono_mb_emit_ldloc (mb, conv_arg);
6623 mono_mb_emit_stloc (mb, src_ptr);
6625 /* Emit marshalling loop */
6626 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6627 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6628 mono_mb_emit_stloc (mb, index_var);
6629 label2 = mono_mb_get_label (mb);
6630 mono_mb_emit_ldloc (mb, index_var);
6631 mono_mb_emit_ldarg (mb, argnum);
6633 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6634 mono_mb_emit_byte (mb, CEE_LDLEN);
6635 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6637 /* Emit marshalling code */
6639 if (eklass == mono_defaults.stringbuilder_class) {
6640 gboolean need_free2;
6641 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6643 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6646 mono_mb_emit_ldarg (mb, argnum);
6648 mono_mb_emit_byte (mb, CEE_LDIND_I);
6649 mono_mb_emit_ldloc (mb, index_var);
6650 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6653 mono_mb_emit_ldloc (mb, src_ptr);
6654 mono_mb_emit_byte (mb, CEE_LDIND_I);
6656 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6660 mono_mb_emit_ldloc (mb, src_ptr);
6661 mono_mb_emit_byte (mb, CEE_LDIND_I);
6663 mono_mb_emit_icall (mb, mono_marshal_free);
6666 else if (eklass == mono_defaults.string_class) {
6669 mono_mb_emit_ldloc (mb, src_ptr);
6670 mono_mb_emit_byte (mb, CEE_LDIND_I);
6672 mono_mb_emit_icall (mb, mono_marshal_free);
6677 /* set the src_ptr */
6678 mono_mb_emit_ldloc (mb, src_ptr);
6679 mono_mb_emit_stloc (mb, 0);
6682 mono_mb_emit_ldarg (mb, argnum);
6684 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6685 mono_mb_emit_ldloc (mb, index_var);
6686 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6687 mono_mb_emit_stloc (mb, 1);
6689 /* emit valuetype conversion code */
6690 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6694 mono_mb_emit_ldloc (mb, src_ptr);
6695 mono_mb_emit_stloc (mb, loc);
6696 mono_mb_emit_ldloc (mb, loc);
6698 emit_struct_free (mb, eklass, loc);
6702 mono_mb_emit_add_to_local (mb, index_var, 1);
6703 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6705 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6707 mono_mb_patch_branch (mb, label1);
6708 mono_mb_patch_branch (mb, label3);
6711 if (klass->element_class->blittable) {
6712 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6714 mono_mb_emit_ldarg (mb, argnum);
6716 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6717 mono_mb_emit_ldloc (mb, conv_arg);
6718 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6723 case MARSHAL_ACTION_PUSH:
6725 mono_mb_emit_ldloc_addr (mb, conv_arg);
6727 mono_mb_emit_ldloc (mb, conv_arg);
6730 case MARSHAL_ACTION_CONV_RESULT:
6731 /* fixme: we need conversions here */
6732 mono_mb_emit_stloc (mb, 3);
6735 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6737 guint32 label1, label2, label3;
6738 int index_var, src_ptr, esize, param_num, num_elem;
6739 MonoMarshalConv conv;
6740 gboolean is_string = FALSE;
6742 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6743 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6746 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6747 mono_mb_emit_exception_marshal_directive (mb, msg);
6751 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6752 mono_mb_emit_exception_marshal_directive (mb, msg);
6755 if (spec->native != MONO_NATIVE_LPARRAY) {
6756 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6757 mono_mb_emit_exception_marshal_directive (mb, msg);
6761 /* FIXME: t is from the method which is wrapped, not the delegate type */
6762 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6764 param_num = spec->data.array_data.param_num;
6765 num_elem = spec->data.array_data.num_elem;
6766 if (spec->data.array_data.elem_mult == 0)
6767 /* param_num is not specified */
6770 if (param_num == -1) {
6771 if (num_elem <= 0) {
6772 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6773 mono_mb_emit_exception_marshal_directive (mb, msg);
6778 /* FIXME: Optimize blittable case */
6780 eklass = klass->element_class;
6781 if (eklass == mono_defaults.string_class) {
6783 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6785 else if (eklass == mono_defaults.stringbuilder_class) {
6787 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6790 conv = MONO_MARSHAL_CONV_INVALID;
6792 mono_marshal_load_type_info (eklass);
6795 esize = sizeof (gpointer);
6797 esize = mono_class_native_size (eklass, NULL);
6798 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6800 mono_mb_emit_byte (mb, CEE_LDNULL);
6801 mono_mb_emit_stloc (mb, conv_arg);
6803 /* Check param index */
6804 if (param_num != -1) {
6805 if (param_num >= m->sig->param_count) {
6806 char *msg = g_strdup ("Array size control parameter index is out of range.");
6807 mono_mb_emit_exception_marshal_directive (mb, msg);
6810 switch (m->sig->params [param_num]->type) {
6823 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6824 mono_mb_emit_exception_marshal_directive (mb, msg);
6831 mono_mb_emit_ldarg (mb, argnum);
6832 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6834 mono_mb_emit_ldarg (mb, argnum);
6835 mono_mb_emit_stloc (mb, src_ptr);
6837 /* Create managed array */
6839 * The LPArray marshalling spec says that sometimes param_num starts
6840 * from 1, sometimes it starts from 0. But MS seems to allways start
6844 if (param_num == -1) {
6845 mono_mb_emit_icon (mb, num_elem);
6847 mono_mb_emit_ldarg (mb, param_num);
6849 mono_mb_emit_icon (mb, num_elem);
6850 mono_mb_emit_byte (mb, CEE_ADD);
6852 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6855 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6856 mono_mb_emit_stloc (mb, conv_arg);
6858 if (eklass->blittable) {
6859 mono_mb_emit_ldloc (mb, conv_arg);
6860 mono_mb_emit_byte (mb, CEE_CONV_I);
6861 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6862 mono_mb_emit_byte (mb, CEE_ADD);
6863 mono_mb_emit_ldarg (mb, argnum);
6864 mono_mb_emit_ldloc (mb, conv_arg);
6865 mono_mb_emit_byte (mb, CEE_LDLEN);
6866 mono_mb_emit_icon (mb, esize);
6867 mono_mb_emit_byte (mb, CEE_MUL);
6868 mono_mb_emit_byte (mb, CEE_PREFIX1);
6869 mono_mb_emit_byte (mb, CEE_CPBLK);
6870 mono_mb_patch_branch (mb, label1);
6874 /* Emit marshalling loop */
6875 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6876 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6877 mono_mb_emit_stloc (mb, index_var);
6878 label2 = mono_mb_get_label (mb);
6879 mono_mb_emit_ldloc (mb, index_var);
6880 mono_mb_emit_ldloc (mb, conv_arg);
6881 mono_mb_emit_byte (mb, CEE_LDLEN);
6882 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6884 /* Emit marshalling code */
6886 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6888 mono_mb_emit_ldloc (mb, conv_arg);
6889 mono_mb_emit_ldloc (mb, index_var);
6891 mono_mb_emit_ldloc (mb, src_ptr);
6892 mono_mb_emit_byte (mb, CEE_LDIND_I);
6894 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6895 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6898 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6899 mono_mb_emit_exception_marshal_directive (mb, msg);
6903 mono_mb_emit_add_to_local (mb, index_var, 1);
6904 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6906 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6908 mono_mb_patch_branch (mb, label1);
6909 mono_mb_patch_branch (mb, label3);
6913 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6915 guint32 label1, label2, label3;
6916 int index_var, dest_ptr, esize, param_num, num_elem;
6917 MonoMarshalConv conv;
6918 gboolean is_string = FALSE;
6921 /* Already handled in CONV_IN */
6924 /* These are already checked in CONV_IN */
6925 g_assert (!t->byref);
6926 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6927 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6929 param_num = spec->data.array_data.param_num;
6930 num_elem = spec->data.array_data.num_elem;
6932 if (spec->data.array_data.elem_mult == 0)
6933 /* param_num is not specified */
6936 if (param_num == -1) {
6937 if (num_elem <= 0) {
6938 g_assert_not_reached ();
6942 /* FIXME: Optimize blittable case */
6944 eklass = klass->element_class;
6945 if (eklass == mono_defaults.string_class) {
6947 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6949 else if (eklass == mono_defaults.stringbuilder_class) {
6951 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6954 conv = MONO_MARSHAL_CONV_INVALID;
6956 mono_marshal_load_type_info (eklass);
6959 esize = sizeof (gpointer);
6961 esize = mono_class_native_size (eklass, NULL);
6963 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6966 mono_mb_emit_ldloc (mb, conv_arg);
6967 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6969 mono_mb_emit_ldarg (mb, argnum);
6970 mono_mb_emit_stloc (mb, dest_ptr);
6972 if (eklass->blittable) {
6974 mono_mb_emit_ldarg (mb, argnum);
6976 mono_mb_emit_ldloc (mb, conv_arg);
6977 mono_mb_emit_byte (mb, CEE_CONV_I);
6978 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6979 mono_mb_emit_byte (mb, CEE_ADD);
6981 mono_mb_emit_ldloc (mb, conv_arg);
6982 mono_mb_emit_byte (mb, CEE_LDLEN);
6983 mono_mb_emit_icon (mb, esize);
6984 mono_mb_emit_byte (mb, CEE_MUL);
6985 mono_mb_emit_byte (mb, CEE_PREFIX1);
6986 mono_mb_emit_byte (mb, CEE_CPBLK);
6990 /* Emit marshalling loop */
6991 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6992 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6993 mono_mb_emit_stloc (mb, index_var);
6994 label2 = mono_mb_get_label (mb);
6995 mono_mb_emit_ldloc (mb, index_var);
6996 mono_mb_emit_ldloc (mb, conv_arg);
6997 mono_mb_emit_byte (mb, CEE_LDLEN);
6998 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7000 /* Emit marshalling code */
7003 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7006 mono_mb_emit_ldloc (mb, dest_ptr);
7009 mono_mb_emit_ldloc (mb, conv_arg);
7010 mono_mb_emit_ldloc (mb, index_var);
7012 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7014 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7015 mono_mb_emit_byte (mb, stind_op);
7018 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7019 mono_mb_emit_exception_marshal_directive (mb, msg);
7023 mono_mb_emit_add_to_local (mb, index_var, 1);
7024 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7026 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7028 mono_mb_patch_branch (mb, label1);
7029 mono_mb_patch_branch (mb, label3);
7033 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7035 guint32 label1, label2, label3;
7036 int index_var, src, dest, esize;
7037 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
7038 gboolean is_string = FALSE;
7040 g_assert (!t->byref);
7042 eklass = klass->element_class;
7044 mono_marshal_load_type_info (eklass);
7046 if (eklass == mono_defaults.string_class) {
7048 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7051 g_assert_not_reached ();
7055 esize = sizeof (gpointer);
7056 else if (eklass == mono_defaults.char_class)
7057 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7059 esize = mono_class_native_size (eklass, NULL);
7061 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7062 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7064 mono_mb_emit_stloc (mb, src);
7065 mono_mb_emit_ldloc (mb, src);
7066 mono_mb_emit_stloc (mb, 3);
7068 /* Check for null */
7069 mono_mb_emit_ldloc (mb, src);
7070 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7072 /* Allocate native array */
7073 mono_mb_emit_icon (mb, esize);
7074 mono_mb_emit_ldloc (mb, src);
7075 mono_mb_emit_byte (mb, CEE_LDLEN);
7077 if (eklass == mono_defaults.string_class) {
7078 /* Make the array bigger for the terminating null */
7079 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7080 mono_mb_emit_byte (mb, CEE_ADD);
7082 mono_mb_emit_byte (mb, CEE_MUL);
7083 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
7084 mono_mb_emit_stloc (mb, dest);
7085 mono_mb_emit_ldloc (mb, dest);
7086 mono_mb_emit_stloc (mb, 3);
7088 /* Emit marshalling loop */
7089 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7090 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7091 mono_mb_emit_stloc (mb, index_var);
7092 label2 = mono_mb_get_label (mb);
7093 mono_mb_emit_ldloc (mb, index_var);
7094 mono_mb_emit_ldloc (mb, src);
7095 mono_mb_emit_byte (mb, CEE_LDLEN);
7096 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7098 /* Emit marshalling code */
7101 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7104 mono_mb_emit_ldloc (mb, dest);
7107 mono_mb_emit_ldloc (mb, src);
7108 mono_mb_emit_ldloc (mb, index_var);
7110 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7112 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7113 mono_mb_emit_byte (mb, stind_op);
7116 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7117 mono_mb_emit_exception_marshal_directive (mb, msg);
7121 mono_mb_emit_add_to_local (mb, index_var, 1);
7122 mono_mb_emit_add_to_local (mb, dest, esize);
7124 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7126 mono_mb_patch_branch (mb, label3);
7127 mono_mb_patch_branch (mb, label1);
7131 g_assert_not_reached ();
7138 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
7141 return &mono_defaults.int32_class->byval_arg;
7143 switch (spec->native) {
7144 case MONO_NATIVE_I1:
7145 case MONO_NATIVE_U1:
7146 return &mono_defaults.byte_class->byval_arg;
7147 case MONO_NATIVE_VARIANTBOOL:
7148 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
7149 return &mono_defaults.int16_class->byval_arg;
7150 case MONO_NATIVE_BOOLEAN:
7151 return &mono_defaults.int32_class->byval_arg;
7153 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7154 return &mono_defaults.int32_class->byval_arg;
7160 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
7162 MonoClass* conv_arg_class = mono_defaults.int32_class;
7164 switch (spec->native) {
7165 case MONO_NATIVE_I1:
7166 case MONO_NATIVE_U1:
7167 conv_arg_class = mono_defaults.byte_class;
7168 if (ldop) *ldop = CEE_LDIND_I1;
7170 case MONO_NATIVE_VARIANTBOOL:
7171 conv_arg_class = mono_defaults.int16_class;
7172 if (ldop) *ldop = CEE_LDIND_I2;
7174 case MONO_NATIVE_BOOLEAN:
7177 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7180 return conv_arg_class;
7184 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7185 MonoMarshalSpec *spec,
7186 int conv_arg, MonoType **conv_arg_type,
7187 MarshalAction action)
7191 case MARSHAL_ACTION_CONV_IN:
7193 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7195 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7198 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7199 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7201 *conv_arg_type = &conv_arg_class->this_arg;
7203 *conv_arg_type = &conv_arg_class->byval_arg;
7209 MonoMethodBuilder *mb = m->mb;
7212 case MARSHAL_ACTION_CONV_IN: {
7213 MonoType *local_type;
7215 guint8 ldc_op = CEE_LDC_I4_1;
7217 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7219 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7221 *conv_arg_type = local_type;
7222 conv_arg = mono_mb_add_local (mb, local_type);
7224 mono_mb_emit_ldarg (mb, argnum);
7226 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7227 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7228 mono_mb_emit_byte (mb, ldc_op);
7229 mono_mb_emit_stloc (mb, conv_arg);
7230 mono_mb_patch_branch (mb, label_false);
7235 case MARSHAL_ACTION_CONV_OUT:
7237 int label_false, label_end;
7241 mono_mb_emit_ldarg (mb, argnum);
7242 mono_mb_emit_ldloc (mb, conv_arg);
7244 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7245 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7247 label_end = mono_mb_emit_branch (mb, CEE_BR);
7248 mono_mb_patch_branch (mb, label_false);
7249 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7250 mono_mb_patch_branch (mb, label_end);
7252 mono_mb_emit_byte (mb, CEE_STIND_I1);
7256 case MARSHAL_ACTION_PUSH:
7258 mono_mb_emit_ldloc_addr (mb, conv_arg);
7260 mono_mb_emit_ldloc (mb, conv_arg);
7262 mono_mb_emit_ldarg (mb, argnum);
7265 case MARSHAL_ACTION_CONV_RESULT:
7266 /* maybe we need to make sure that it fits within 8 bits */
7267 mono_mb_emit_stloc (mb, 3);
7270 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7271 MonoClass* conv_arg_class = mono_defaults.int32_class;
7272 guint8 ldop = CEE_LDIND_I4;
7273 int label_null, label_false;
7275 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7276 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7279 *conv_arg_type = &conv_arg_class->this_arg;
7281 *conv_arg_type = &conv_arg_class->byval_arg;
7284 mono_mb_emit_ldarg (mb, argnum);
7288 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7289 mono_mb_emit_ldarg (mb, argnum);
7290 mono_mb_emit_byte (mb, ldop);
7294 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7295 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7296 mono_mb_emit_stloc (mb, conv_arg);
7297 mono_mb_patch_branch (mb, label_false);
7300 mono_mb_patch_branch (mb, label_null);
7304 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7305 guint8 stop = CEE_STIND_I4;
7306 guint8 ldc_op = CEE_LDC_I4_1;
7307 int label_null,label_false, label_end;;
7312 switch (spec->native) {
7313 case MONO_NATIVE_I1:
7314 case MONO_NATIVE_U1:
7315 stop = CEE_STIND_I1;
7317 case MONO_NATIVE_VARIANTBOOL:
7318 stop = CEE_STIND_I2;
7319 ldc_op = CEE_LDC_I4_M1;
7327 mono_mb_emit_ldarg (mb, argnum);
7328 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7330 mono_mb_emit_ldarg (mb, argnum);
7331 mono_mb_emit_ldloc (mb, conv_arg);
7333 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7334 mono_mb_emit_byte (mb, ldc_op);
7335 label_end = mono_mb_emit_branch (mb, CEE_BR);
7337 mono_mb_patch_branch (mb, label_false);
7338 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7339 mono_mb_patch_branch (mb, label_end);
7341 mono_mb_emit_byte (mb, stop);
7342 mono_mb_patch_branch (mb, label_null);
7347 g_assert_not_reached ();
7354 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7355 MonoMarshalSpec *spec, int conv_arg,
7356 MonoType **conv_arg_type, MarshalAction action)
7359 MonoMethodBuilder *mb = m->mb;
7362 case MARSHAL_ACTION_CONV_IN:
7363 /* MS seems to allow this in some cases, ie. bxc #158 */
7365 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7366 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7367 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7372 case MARSHAL_ACTION_PUSH:
7373 mono_mb_emit_ldarg (mb, argnum);
7376 case MARSHAL_ACTION_CONV_RESULT:
7377 /* no conversions necessary */
7378 mono_mb_emit_stloc (mb, 3);
7389 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7390 MonoMarshalSpec *spec, int conv_arg,
7391 MonoType **conv_arg_type, MarshalAction action)
7394 MonoMethodBuilder *mb = m->mb;
7397 case MARSHAL_ACTION_PUSH:
7398 /* fixme: dont know how to marshal that. We cant simply
7399 * convert it to a one byte UTF8 character, because an
7400 * unicode character may need more that one byte in UTF8 */
7401 mono_mb_emit_ldarg (mb, argnum);
7404 case MARSHAL_ACTION_CONV_RESULT:
7405 /* fixme: we need conversions here */
7406 mono_mb_emit_stloc (mb, 3);
7417 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7418 MonoMarshalSpec *spec, int conv_arg,
7419 MonoType **conv_arg_type, MarshalAction action)
7422 MonoMethodBuilder *mb = m->mb;
7425 case MARSHAL_ACTION_PUSH:
7426 mono_mb_emit_ldarg (mb, argnum);
7429 case MARSHAL_ACTION_CONV_RESULT:
7430 /* no conversions necessary */
7431 mono_mb_emit_stloc (mb, 3);
7442 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7443 MonoMarshalSpec *spec, int conv_arg,
7444 MonoType **conv_arg_type, MarshalAction action)
7446 /* Ensure that we have marshalling info for this param */
7447 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7449 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7450 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7452 if (spec && spec->native == MONO_NATIVE_ASANY)
7453 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7456 case MONO_TYPE_VALUETYPE:
7457 if (t->data.klass == mono_defaults.handleref_class)
7458 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7460 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7461 case MONO_TYPE_STRING:
7462 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7463 case MONO_TYPE_CLASS:
7464 case MONO_TYPE_OBJECT:
7465 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7466 if (spec && spec->native == MONO_NATIVE_STRUCT)
7467 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7470 #if !defined(DISABLE_COM)
7471 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7472 spec->native == MONO_NATIVE_IDISPATCH ||
7473 spec->native == MONO_NATIVE_INTERFACE))
7474 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7475 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7476 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7477 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7478 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7481 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7482 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7483 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7485 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7486 case MONO_TYPE_ARRAY:
7487 case MONO_TYPE_SZARRAY:
7488 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7489 case MONO_TYPE_BOOLEAN:
7490 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7492 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7493 case MONO_TYPE_CHAR:
7494 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7507 case MONO_TYPE_FNPTR:
7508 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7509 case MONO_TYPE_GENERICINST:
7510 if (mono_type_generic_inst_is_valuetype (t))
7511 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7513 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7519 /* How the arguments of an icall should be wrapped */
7521 /* Don't wrap at all, pass the argument as is */
7522 ICALL_HANDLES_WRAP_NONE,
7523 /* Wrap the argument in an object handle, pass the handle to the icall */
7524 ICALL_HANDLES_WRAP_OBJ,
7525 /* Wrap the argument in an object handle, pass the handle to the icall,
7526 write the value out from the handle when the icall returns */
7527 ICALL_HANDLES_WRAP_OBJ_INOUT,
7528 /* Wrap the argument (a valuetype reference) in a handle to pin its enclosing object,
7529 but pass the raw reference to the icall */
7530 ICALL_HANDLES_WRAP_VALUETYPE_REF,
7534 IcallHandlesWrap wrap;
7535 /* if wrap is NONE or OBJ or VALUETYPE_REF, this is not meaningful.
7536 if wrap is OBJ_INOUT it's the local var that holds the MonoObjectHandle.
7539 } IcallHandlesLocal;
7542 * Describes how to wrap the given parameter.
7545 static IcallHandlesWrap
7546 signature_param_uses_handles (MonoMethodSignature *sig, int param)
7548 if (MONO_TYPE_IS_REFERENCE (sig->params [param])) {
7549 return mono_signature_param_is_out (sig, param) ? ICALL_HANDLES_WRAP_OBJ_INOUT : ICALL_HANDLES_WRAP_OBJ;
7550 } else if (mono_type_is_byref (sig->params [param]))
7551 return ICALL_HANDLES_WRAP_VALUETYPE_REF;
7553 return ICALL_HANDLES_WRAP_NONE;
7559 * mono_marshal_emit_native_wrapper:
7560 * \param image the image to use for looking up custom marshallers
7561 * \param sig The signature of the native function
7562 * \param piinfo Marshalling information
7563 * \param mspecs Marshalling information
7564 * \param aot whenever the created method will be compiled by the AOT compiler
7565 * \param method if non-NULL, the pinvoke method to call
7566 * \param check_exceptions Whenever to check for pending exceptions after the native call
7567 * \param func_param the function to call is passed as a boxed IntPtr as the first parameter
7569 * generates IL code for the pinvoke wrapper, the generated code calls \p func .
7572 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)
7574 EmitMarshalContext m;
7575 MonoMethodSignature *csig;
7577 int i, argnum, *tmp_locals;
7578 int type, param_shift = 0;
7579 int coop_gc_stack_dummy, coop_gc_var;
7581 memset (&m, 0, sizeof (m));
7586 /* we copy the signature, so that we can set pinvoke to 0 */
7588 /* The function address is passed as the first argument */
7589 g_assert (!sig->hasthis);
7592 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7600 /* we allocate local for use with emit_struct_conv() */
7601 /* allocate local 0 (pointer) src_ptr */
7602 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7603 /* allocate local 1 (pointer) dst_ptr */
7604 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7605 /* allocate local 2 (boolean) delete_old */
7606 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7608 /* delete_old = FALSE */
7609 mono_mb_emit_icon (mb, 0);
7610 mono_mb_emit_stloc (mb, 2);
7612 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7613 /* allocate local 3 to store the return value */
7614 mono_mb_add_local (mb, sig->ret);
7617 if (mono_threads_is_coop_enabled ()) {
7618 /* local 4, dummy local used to get a stack address for suspend funcs */
7619 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7620 /* local 5, the local to be used when calling the suspend funcs */
7621 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7625 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7627 * ret = method (...);
7629 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7636 if (MONO_TYPE_ISSTRUCT (sig->ret))
7637 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7639 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7640 /* Return type custom marshaling */
7642 * Since we can't determine the return type of the unmanaged function,
7643 * we assume it returns a pointer, and pass that pointer to
7644 * MarshalNativeToManaged.
7646 csig->ret = &mono_defaults.int_class->byval_arg;
7649 /* we first do all conversions */
7650 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7651 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7653 for (i = 0; i < sig->param_count; i ++) {
7654 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7657 // In coop mode need to register blocking state during native call
7658 if (mono_threads_is_coop_enabled ()) {
7659 // Perform an extra, early lookup of the function address, so any exceptions
7660 // potentially resulting from the lookup occur before entering blocking mode.
7661 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7662 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7663 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7664 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7667 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7668 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7669 mono_mb_emit_stloc (mb, coop_gc_var);
7672 /* push all arguments */
7675 mono_mb_emit_byte (mb, CEE_LDARG_0);
7677 for (i = 0; i < sig->param_count; i++) {
7678 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7681 /* call the native method */
7683 mono_mb_emit_byte (mb, CEE_LDARG_0);
7684 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7685 mono_mb_emit_byte (mb, CEE_LDIND_I);
7686 mono_mb_emit_calli (mb, csig);
7687 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7689 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7691 g_assert_not_reached ();
7695 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7696 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7697 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7698 mono_mb_emit_calli (mb, csig);
7700 mono_mb_emit_native_call (mb, csig, func);
7704 /* Set LastError if needed */
7705 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7708 static MonoMethodSignature *get_last_error_sig = NULL;
7709 if (!get_last_error_sig) {
7710 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7711 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7712 get_last_error_sig->pinvoke = 1;
7716 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7717 * clobber its value.
7719 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7720 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7722 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7723 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7724 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7727 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7731 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7732 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7733 mono_class_init (klass);
7734 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
7735 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7736 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7737 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7738 mono_mb_emit_stloc (mb, m.vtaddr_var);
7742 /* Unblock before converting the result, since that can involve calls into the runtime */
7743 if (mono_threads_is_coop_enabled ()) {
7744 mono_mb_emit_ldloc (mb, coop_gc_var);
7745 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7746 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7749 /* convert the result */
7750 if (!sig->ret->byref) {
7751 MonoMarshalSpec *spec = mspecs [0];
7752 type = sig->ret->type;
7754 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7755 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7759 case MONO_TYPE_VOID:
7761 case MONO_TYPE_VALUETYPE:
7762 klass = sig->ret->data.klass;
7763 if (klass->enumtype) {
7764 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7767 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7781 case MONO_TYPE_FNPTR:
7782 case MONO_TYPE_STRING:
7783 case MONO_TYPE_CLASS:
7784 case MONO_TYPE_OBJECT:
7785 case MONO_TYPE_BOOLEAN:
7786 case MONO_TYPE_ARRAY:
7787 case MONO_TYPE_SZARRAY:
7788 case MONO_TYPE_CHAR:
7790 case MONO_TYPE_GENERICINST:
7791 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7793 case MONO_TYPE_TYPEDBYREF:
7795 g_warning ("return type 0x%02x unknown", sig->ret->type);
7796 g_assert_not_reached ();
7800 mono_mb_emit_stloc (mb, 3);
7804 * Need to call this after converting the result since MONO_VTADDR needs
7805 * to be adjacent to the call instruction.
7807 if (check_exceptions)
7808 emit_thread_interrupt_checkpoint (mb);
7810 /* we need to convert byref arguments back and free string arrays */
7811 for (i = 0; i < sig->param_count; i++) {
7812 MonoType *t = sig->params [i];
7813 MonoMarshalSpec *spec = mspecs [i + 1];
7815 argnum = i + param_shift;
7817 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7818 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7823 case MONO_TYPE_STRING:
7824 case MONO_TYPE_VALUETYPE:
7825 case MONO_TYPE_CLASS:
7826 case MONO_TYPE_OBJECT:
7827 case MONO_TYPE_SZARRAY:
7828 case MONO_TYPE_BOOLEAN:
7829 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7836 if (!MONO_TYPE_IS_VOID(sig->ret))
7837 mono_mb_emit_ldloc (mb, 3);
7839 mono_mb_emit_byte (mb, CEE_RET);
7841 #endif /* DISABLE_JIT */
7844 * mono_marshal_get_native_wrapper:
7845 * \param method The \c MonoMethod to wrap.
7846 * \param check_exceptions Whenever to check for pending exceptions
7848 * Generates IL code for the pinvoke wrapper. The generated method
7849 * calls the unmanaged code in \c piinfo->addr.
7852 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7854 MonoMethodSignature *sig, *csig;
7855 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7856 MonoMethodBuilder *mb;
7857 MonoMarshalSpec **mspecs;
7860 gboolean pinvoke = FALSE;
7863 const char *exc_class = "MissingMethodException";
7864 const char *exc_arg = NULL;
7867 g_assert (method != NULL);
7868 g_assert (mono_method_signature (method)->pinvoke);
7870 GHashTable **cache_ptr;
7873 if (check_exceptions)
7874 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7876 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7878 if (check_exceptions)
7879 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7881 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7884 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7886 if ((res = mono_marshal_find_in_cache (cache, method)))
7889 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7890 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7894 return mono_cominterop_get_native_wrapper (method);
7896 g_assert_not_reached ();
7900 sig = mono_method_signature (method);
7902 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7903 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7906 if (!piinfo->addr) {
7908 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7909 exc_arg = "Method contains unsupported native code";
7911 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7913 piinfo->addr = mono_lookup_internal_call (method);
7917 /* hack - redirect certain string constructors to CreateString */
7918 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7919 g_assert (!pinvoke);
7920 g_assert (method->string_ctor);
7921 g_assert (sig->hasthis);
7923 /* CreateString returns a value */
7924 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7925 csig->ret = &mono_defaults.string_class->byval_arg;
7929 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7930 if (!strcmp ("CreateString", res->name) &&
7931 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7934 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7935 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7937 /* create a wrapper to preserve .ctor in stack trace */
7938 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7941 mono_mb_emit_byte (mb, CEE_LDARG_0);
7942 for (i = 1; i <= csig->param_count; i++)
7943 mono_mb_emit_ldarg (mb, i);
7944 mono_mb_emit_managed_call (mb, res, NULL);
7945 mono_mb_emit_byte (mb, CEE_RET);
7948 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7949 info->d.string_ctor.method = method;
7951 /* use native_wrapper_cache because internal calls are looked up there */
7952 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7953 csig->param_count + 1, info, NULL);
7960 /* exception will be thrown */
7961 piinfo->addr = NULL;
7962 g_warning ("cannot find CreateString for .ctor");
7965 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7967 mb->method->save_lmf = 1;
7970 * In AOT mode and embedding scenarios, it is possible that the icall is not
7971 * registered in the runtime doing the AOT compilation.
7973 if (!piinfo->addr && !aot) {
7975 mono_mb_emit_exception (mb, exc_class, exc_arg);
7977 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7978 info->d.managed_to_native.method = method;
7980 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7982 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7983 csig->param_count + 16, info, NULL);
7989 /* internal calls: we simply push all arguments and call the method (no conversions) */
7990 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7992 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7994 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7996 //printf ("%s\n", mono_method_full_name (method, 1));
7998 /* hack - string constructors returns a value */
7999 if (method->string_ctor)
8000 csig->ret = &mono_defaults.string_class->byval_arg;
8004 MonoClass *handle_stack_mark_class;
8005 MonoClass *error_class;
8006 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
8007 MonoMethodSignature *call_sig = csig;
8008 gboolean uses_handles = FALSE;
8009 gboolean save_handles_to_locals = FALSE;
8010 IcallHandlesLocal *handles_locals = NULL;
8011 (void) mono_lookup_internal_call_full (method, &uses_handles);
8014 /* If it uses handles and MonoError, it had better check exceptions */
8015 g_assert (!uses_handles || check_exceptions);
8018 MonoMethodSignature *ret;
8020 /* Add a MonoError argument and figure out which args need to be wrapped in handles */
8021 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
8022 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
8024 ret->param_count = csig->param_count + 1;
8025 ret->ret = csig->ret;
8027 handles_locals = g_new0 (IcallHandlesLocal, csig->param_count);
8028 for (int i = 0; i < csig->param_count; ++i) {
8029 IcallHandlesWrap w = signature_param_uses_handles (csig, i);
8030 handles_locals [i].wrap = w;
8032 case ICALL_HANDLES_WRAP_OBJ:
8033 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8034 ret->params [i] = mono_class_get_byref_type (mono_class_from_mono_type(csig->params[i]));
8035 if (w == ICALL_HANDLES_WRAP_OBJ_INOUT)
8036 save_handles_to_locals = TRUE;
8038 case ICALL_HANDLES_WRAP_NONE:
8039 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8040 ret->params [i] = csig->params [i];
8043 g_assert_not_reached ();
8046 /* Add MonoError* param */
8047 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
8048 ret->pinvoke = csig->pinvoke;
8054 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
8055 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
8057 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
8058 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
8059 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
8061 if (save_handles_to_locals) {
8062 /* add a local var to hold the handles for each out arg */
8063 for (int i = 0; i < sig->param_count; ++i) {
8064 int j = i + sig->hasthis;
8065 switch (handles_locals[j].wrap) {
8066 case ICALL_HANDLES_WRAP_NONE:
8067 case ICALL_HANDLES_WRAP_OBJ:
8068 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8069 handles_locals [j].handle = -1;
8071 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8072 handles_locals [j].handle = mono_mb_add_local (mb, sig->params [i]);
8075 g_assert_not_reached ();
8085 * Add a null check since public icalls can be called with 'call' which
8086 * does no such check.
8088 mono_mb_emit_byte (mb, CEE_LDARG_0);
8089 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8090 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8091 mono_mb_patch_branch (mb, pos);
8095 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8096 mono_mb_emit_ldloc_addr (mb, error_var);
8097 mono_mb_emit_icall (mb, mono_icall_start);
8098 mono_mb_emit_stloc (mb, thread_info_var);
8101 mono_mb_emit_byte (mb, CEE_LDARG_0);
8102 /* TODO support adding wrappers to non-static struct methods */
8103 g_assert (!mono_class_is_valuetype(mono_method_get_class (method)));
8104 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8105 mono_mb_emit_icall (mb, mono_handle_new_full);
8107 for (i = 0; i < sig->param_count; i++) {
8108 /* load each argument. references into the managed heap get wrapped in handles */
8109 int j = i + sig->hasthis;
8110 switch (handles_locals[j].wrap) {
8111 case ICALL_HANDLES_WRAP_NONE:
8112 mono_mb_emit_ldarg (mb, j);
8114 case ICALL_HANDLES_WRAP_OBJ:
8115 /* argI = mono_handle_new_full (argI_raw, FALSE) */
8116 mono_mb_emit_ldarg (mb, j);
8117 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8118 mono_mb_emit_icall (mb, mono_handle_new_full);
8120 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8121 /* handleI = argI = mono_handle_new_full (NULL, FALSE) */
8122 mono_mb_emit_byte (mb, CEE_LDNULL);
8123 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8124 mono_mb_emit_icall (mb, mono_handle_new_full);
8126 mono_mb_emit_byte (mb, CEE_DUP);
8128 mono_mb_emit_stloc (mb, handles_locals[j].handle);
8130 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8131 /* (void) mono_handle_new_full (argI, TRUE); argI */
8132 mono_mb_emit_ldarg (mb, j);
8133 mono_mb_emit_byte (mb, CEE_DUP);
8134 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8135 mono_mb_emit_icall (mb, mono_handle_new_full);
8136 mono_mb_emit_byte (mb, CEE_POP);
8138 fprintf (stderr, " Method %s.%s.%s has byref valuetype argument %d\n", method->klass->name_space, method->klass->name, method->name, i);
8142 g_assert_not_reached ();
8145 mono_mb_emit_ldloc_addr (mb, error_var);
8148 mono_mb_emit_byte (mb, CEE_LDARG_0);
8149 for (i = 0; i < sig->param_count; i++)
8150 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8154 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8155 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8156 mono_mb_emit_calli (mb, call_sig);
8158 g_assert (piinfo->addr);
8159 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
8163 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
8164 // if (ret != NULL_HANDLE) {
8165 // ret = MONO_HANDLE_RAW(ret)
8167 mono_mb_emit_byte (mb, CEE_DUP);
8168 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8169 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8170 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8171 mono_mb_patch_branch (mb, pos);
8173 if (save_handles_to_locals) {
8174 for (i = 0; i < sig->param_count; i++) {
8175 int j = i + sig->hasthis;
8176 switch (handles_locals [j].wrap) {
8177 case ICALL_HANDLES_WRAP_NONE:
8178 case ICALL_HANDLES_WRAP_OBJ:
8179 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8181 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8182 /* *argI_raw = MONO_HANDLE_RAW (handleI) */
8185 mono_mb_emit_ldarg (mb, j);
8187 mono_mb_emit_ldloc (mb, handles_locals [j].handle);
8188 /* MONO_HANDLE_RAW(handleI) */
8189 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8190 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8191 /* *argI_raw = MONO_HANDLE_RAW(handleI) */
8192 mono_mb_emit_byte (mb, CEE_STIND_REF);
8195 g_assert_not_reached ();
8199 g_free (handles_locals);
8201 mono_mb_emit_ldloc (mb, thread_info_var);
8202 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8203 mono_mb_emit_ldloc_addr (mb, error_var);
8204 mono_mb_emit_icall (mb, mono_icall_end);
8207 if (check_exceptions)
8208 emit_thread_interrupt_checkpoint (mb);
8209 mono_mb_emit_byte (mb, CEE_RET);
8211 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8212 info->d.managed_to_native.method = method;
8214 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
8216 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8225 g_assert (piinfo->addr);
8228 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8229 mono_method_get_marshal_info (method, mspecs);
8231 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
8233 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
8234 info->d.managed_to_native.method = method;
8236 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8238 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8243 for (i = sig->param_count; i >= 0; i--)
8245 mono_metadata_free_marshal_spec (mspecs [i]);
8249 /* mono_method_print_code (res); */
8255 * mono_marshal_get_native_func_wrapper:
8256 * \param image The image to use for memory allocation and for looking up custom marshallers.
8257 * \param sig The signature of the function
8258 * \param func The native function to wrap
8260 * \returns a wrapper method around native functions, similar to the pinvoke
8264 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8265 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8267 MonoMethodSignature *csig;
8269 SignaturePointerPair key, *new_key;
8270 MonoMethodBuilder *mb;
8279 // Generic types are not safe to place in MonoImage caches.
8280 g_assert (!sig->is_inflated);
8282 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
8283 if ((res = mono_marshal_find_in_cache (cache, &key)))
8286 name = g_strdup_printf ("wrapper_native_%p", func);
8287 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8288 mb->method->save_lmf = 1;
8291 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8294 csig = mono_metadata_signature_dup_full (image, sig);
8297 new_key = g_new (SignaturePointerPair,1);
8298 new_key->sig = csig;
8299 new_key->pointer = func;
8301 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
8307 mono_marshal_set_wrapper_info (res, NULL);
8313 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8317 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8319 MonoMethodSignature *sig, *csig;
8320 MonoMethodBuilder *mb;
8325 MonoMethodPInvoke mpiinfo;
8326 MonoMethodPInvoke *piinfo = &mpiinfo;
8327 MonoMarshalSpec **mspecs;
8328 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8329 MonoImage *image = invoke->klass->image;
8332 // FIXME: include UnmanagedFunctionPointerAttribute info
8335 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8337 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8339 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8342 memset (&mpiinfo, 0, sizeof (mpiinfo));
8343 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8345 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8346 mono_method_get_marshal_info (invoke, mspecs);
8347 /* Freed below so don't alloc from mempool */
8348 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8351 name = g_strdup_printf ("wrapper_aot_native");
8352 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8353 mb->method->save_lmf = 1;
8356 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8359 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8360 info->d.managed_to_native.method = invoke;
8362 g_assert (!sig->hasthis);
8363 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8365 res = mono_mb_create_and_cache_full (cache, invoke,
8366 mb, csig, csig->param_count + 16,
8370 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8372 mono_metadata_free_marshal_spec (mspecs [i]);
8380 * mono_marshal_emit_managed_wrapper:
8382 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8383 * the delegate which wraps the managed method to be called. For closed delegates,
8384 * it could have fewer parameters than the method it wraps.
8385 * THIS_LOC is the memory location where the target of the delegate is stored.
8388 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8391 MonoMethodSignature *sig, *csig;
8397 /* we first do all conversions */
8398 for (i = 0; i < sig->param_count; i ++) {
8399 MonoType *t = sig->params [i];
8402 case MONO_TYPE_OBJECT:
8403 case MONO_TYPE_CLASS:
8404 case MONO_TYPE_VALUETYPE:
8405 case MONO_TYPE_ARRAY:
8406 case MONO_TYPE_SZARRAY:
8407 case MONO_TYPE_STRING:
8408 case MONO_TYPE_BOOLEAN:
8409 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8413 if (!sig->ret->byref) {
8414 switch (sig->ret->type) {
8415 case MONO_TYPE_STRING:
8416 csig->ret = &mono_defaults.int_class->byval_arg;
8423 MonoMethodSignature *sig, *csig;
8424 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8425 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8426 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8427 gboolean closed = FALSE;
8432 /* allocate local 0 (pointer) src_ptr */
8433 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8434 /* allocate local 1 (pointer) dst_ptr */
8435 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8436 /* allocate local 2 (boolean) delete_old */
8437 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8439 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8440 /* Closed delegate */
8441 g_assert (sig->param_count == invoke_sig->param_count + 1);
8443 /* Use a new signature without the first argument */
8444 sig = mono_metadata_signature_dup (sig);
8445 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8446 sig->param_count --;
8449 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8450 /* allocate local 3 to store the return value */
8451 mono_mb_add_local (mb, sig->ret);
8454 if (MONO_TYPE_ISSTRUCT (sig->ret))
8455 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8457 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8458 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8460 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8461 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8466 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8467 * mono_threads_attach_coop ();
8471 * ret = method (...);
8472 * } catch (Exception e) {
8473 * ex = mono_gchandle_new (e, false);
8475 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8476 * mono_threads_detach_coop ();
8479 * mono_marshal_ftnptr_eh_callback (ex);
8485 clauses = g_new0 (MonoExceptionClause, 2);
8487 clause_catch = &clauses [0];
8488 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8489 clause_catch->data.catch_class = mono_defaults.exception_class;
8491 clause_finally = &clauses [1];
8492 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8494 mono_mb_emit_icon (mb, 0);
8495 mono_mb_emit_stloc (mb, 2);
8497 mono_mb_emit_icon (mb, -1);
8498 mono_mb_emit_byte (mb, CEE_CONV_U4);
8499 mono_mb_emit_stloc (mb, ex_local);
8502 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8504 if (!mono_threads_is_coop_enabled ()) {
8505 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8506 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8508 /* mono_threads_attach_coop (); */
8509 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8510 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8511 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8512 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8513 mono_mb_emit_stloc (mb, attach_cookie_local);
8516 /* <interrupt check> */
8517 emit_thread_interrupt_checkpoint (mb);
8519 /* we first do all conversions */
8520 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8521 for (i = 0; i < sig->param_count; i ++) {
8522 MonoType *t = sig->params [i];
8525 case MONO_TYPE_OBJECT:
8526 case MONO_TYPE_CLASS:
8527 case MONO_TYPE_VALUETYPE:
8528 case MONO_TYPE_ARRAY:
8529 case MONO_TYPE_SZARRAY:
8530 case MONO_TYPE_STRING:
8531 case MONO_TYPE_BOOLEAN:
8532 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8542 if (target_handle) {
8543 mono_mb_emit_icon (mb, (gint32)target_handle);
8544 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8547 g_assert_not_reached ();
8549 } else if (closed) {
8550 mono_mb_emit_icon (mb, (gint32)target_handle);
8551 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8554 for (i = 0; i < sig->param_count; i++) {
8555 MonoType *t = sig->params [i];
8557 if (tmp_locals [i]) {
8559 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8561 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8564 mono_mb_emit_ldarg (mb, i);
8567 /* ret = method (...) */
8568 mono_mb_emit_managed_call (mb, method, NULL);
8570 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8571 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8572 mono_class_init (klass);
8573 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
8574 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8575 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8576 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8577 mono_mb_emit_stloc (mb, m->vtaddr_var);
8581 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8582 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8583 } else if (!sig->ret->byref) {
8584 switch (sig->ret->type) {
8585 case MONO_TYPE_VOID:
8587 case MONO_TYPE_BOOLEAN:
8590 case MONO_TYPE_CHAR:
8602 case MONO_TYPE_OBJECT:
8603 mono_mb_emit_stloc (mb, 3);
8605 case MONO_TYPE_STRING:
8606 csig->ret = &mono_defaults.int_class->byval_arg;
8607 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8609 case MONO_TYPE_VALUETYPE:
8610 case MONO_TYPE_CLASS:
8611 case MONO_TYPE_SZARRAY:
8612 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8615 g_warning ("return type 0x%02x unknown", sig->ret->type);
8616 g_assert_not_reached ();
8619 mono_mb_emit_stloc (mb, 3);
8622 /* Convert byref arguments back */
8623 for (i = 0; i < sig->param_count; i ++) {
8624 MonoType *t = sig->params [i];
8625 MonoMarshalSpec *spec = mspecs [i + 1];
8627 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8628 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8630 else if (t->byref) {
8632 case MONO_TYPE_CLASS:
8633 case MONO_TYPE_VALUETYPE:
8634 case MONO_TYPE_OBJECT:
8635 case MONO_TYPE_STRING:
8636 case MONO_TYPE_BOOLEAN:
8637 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8643 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8644 /* The [Out] information is encoded in the delegate signature */
8646 case MONO_TYPE_SZARRAY:
8647 case MONO_TYPE_CLASS:
8648 case MONO_TYPE_VALUETYPE:
8649 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8652 g_assert_not_reached ();
8657 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8661 /* catch (Exception e) { */
8662 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8663 clause_catch->handler_offset = mono_mb_get_label (mb);
8665 mono_mb_emit_stloc (mb, e_local);
8667 /* ex = mono_gchandle_new (e, false); */
8668 mono_mb_emit_ldloc (mb, e_local);
8669 mono_mb_emit_icon (mb, 0);
8670 mono_mb_emit_icall (mb, mono_gchandle_new);
8671 mono_mb_emit_stloc (mb, ex_local);
8673 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8676 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8679 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8680 clause_finally->handler_offset = mono_mb_get_label (mb);
8682 if (!mono_threads_is_coop_enabled ()) {
8683 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8684 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8686 /* mono_threads_detach_coop (); */
8687 mono_mb_emit_ldloc (mb, attach_cookie_local);
8688 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8689 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8693 mono_mb_emit_ldloc (mb, ex_local);
8694 mono_mb_emit_icon (mb, -1);
8695 mono_mb_emit_byte (mb, CEE_CONV_U4);
8696 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8698 /* mono_marshal_ftnptr_eh_callback (ex) */
8699 mono_mb_emit_ldloc (mb, ex_local);
8700 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8703 mono_mb_patch_branch (mb, ex_m1_pos);
8705 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8707 /* } [endfinally] */
8708 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8710 mono_mb_patch_branch (mb, leave_try_pos);
8711 mono_mb_patch_branch (mb, leave_catch_pos);
8714 if (m->retobj_var) {
8715 mono_mb_emit_ldloc (mb, m->retobj_var);
8716 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8717 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8720 if (!MONO_TYPE_IS_VOID(sig->ret))
8721 mono_mb_emit_ldloc (mb, 3);
8722 mono_mb_emit_byte (mb, CEE_RET);
8725 mono_mb_set_clauses (mb, 2, clauses);
8733 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8735 MonoMethodSignature *sig;
8740 * Under windows, delegates passed to native code must use the STDCALL
8741 * calling convention.
8743 csig->call_convention = MONO_CALL_STDCALL;
8746 sig = mono_method_signature (method);
8748 /* Change default calling convention if needed */
8749 /* Why is this a modopt ? */
8750 if (sig->ret && sig->ret->num_mods) {
8751 for (i = 0; i < sig->ret->num_mods; ++i) {
8753 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8754 g_assert (mono_error_ok (&error));
8755 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8756 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8757 csig->call_convention = MONO_CALL_C;
8758 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8759 csig->call_convention = MONO_CALL_STDCALL;
8760 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8761 csig->call_convention = MONO_CALL_FASTCALL;
8762 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8763 csig->call_convention = MONO_CALL_THISCALL;
8770 * mono_marshal_get_managed_wrapper:
8771 * Generates IL code to call managed methods from unmanaged code
8772 * If \p target_handle is \c 0, the wrapper info will be a \c WrapperInfo structure.
8775 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle, MonoError *error)
8777 MonoMethodSignature *sig, *csig, *invoke_sig;
8778 MonoMethodBuilder *mb;
8779 MonoMethod *res, *invoke;
8780 MonoMarshalSpec **mspecs;
8781 MonoMethodPInvoke piinfo;
8784 EmitMarshalContext m;
8786 g_assert (method != NULL);
8789 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
8790 mono_error_set_invalid_program (error, "Failed because method (%s) marked PInvokeCallback (managed method) and extern (unmanaged) simultaneously.", mono_method_full_name (method, TRUE));
8795 * FIXME: Should cache the method+delegate type pair, since the same method
8796 * could be called with different delegates, thus different marshalling
8799 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8801 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8804 invoke = mono_get_delegate_invoke (delegate_klass);
8805 invoke_sig = mono_method_signature (invoke);
8807 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8808 mono_method_get_marshal_info (invoke, mspecs);
8810 sig = mono_method_signature (method);
8812 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8814 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8815 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8817 /* we copy the signature, so that we can modify it */
8819 /* Need to free this later */
8820 csig = mono_metadata_signature_dup (invoke_sig);
8822 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8826 memset (&m, 0, sizeof (m));
8832 m.image = method->klass->image;
8834 mono_marshal_set_callconv_from_modopt (invoke, csig);
8836 /* The attribute is only available in Net 2.0 */
8837 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8838 MonoCustomAttrInfo *cinfo;
8839 MonoCustomAttrEntry *attr;
8842 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8843 * contents of the attribute without constructing it, as that might not be
8844 * possible when running in cross-compiling mode.
8846 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, error);
8847 mono_error_assert_ok (error);
8850 for (i = 0; i < cinfo->num_attrs; ++i) {
8851 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8852 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8853 attr = &cinfo->attrs [i];
8859 MonoArray *typed_args, *named_args;
8860 CattrNamedArg *arginfo;
8864 MonoBoolean set_last_error = 0;
8867 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8868 g_assert (mono_error_ok (&error));
8869 g_assert (mono_array_length (typed_args) == 1);
8872 o = mono_array_get (typed_args, MonoObject*, 0);
8873 call_conv = *(gint32*)mono_object_unbox (o);
8876 for (i = 0; i < mono_array_length (named_args); ++i) {
8877 CattrNamedArg *narg = &arginfo [i];
8879 o = mono_array_get (named_args, MonoObject*, i);
8881 g_assert (narg->field);
8882 if (!strcmp (narg->field->name, "CharSet")) {
8883 charset = *(gint32*)mono_object_unbox (o);
8884 } else if (!strcmp (narg->field->name, "SetLastError")) {
8885 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8886 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8887 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8888 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8889 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8891 g_assert_not_reached ();
8897 memset (&piinfo, 0, sizeof (piinfo));
8899 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8901 csig->call_convention = call_conv - 1;
8904 if (cinfo && !cinfo->cached)
8905 mono_custom_attrs_free (cinfo);
8908 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8910 if (!target_handle) {
8913 // FIXME: Associate it with the method+delegate_klass pair
8914 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8915 info->d.native_to_managed.method = method;
8916 info->d.native_to_managed.klass = delegate_klass;
8918 res = mono_mb_create_and_cache_full (cache, method,
8919 mb, csig, sig->param_count + 16,
8925 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8929 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8931 mono_metadata_free_marshal_spec (mspecs [i]);
8934 /* mono_method_print_code (res); */
8940 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8944 MonoMethodSignature *sig;
8945 MonoMethodBuilder *mb;
8950 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8952 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8955 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8956 MonoMethodSignature *csig;
8957 MonoMarshalSpec **mspecs;
8958 EmitMarshalContext m;
8960 sig = mono_method_signature (method);
8961 g_assert (!sig->hasthis);
8963 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8964 mono_method_get_marshal_info (method, mspecs);
8966 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8967 csig = mono_metadata_signature_dup_full (image, sig);
8971 memset (&m, 0, sizeof (m));
8979 mono_marshal_set_callconv_from_modopt (method, csig);
8981 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8983 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8988 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8991 for (i = sig->param_count; i >= 0; i--)
8993 mono_metadata_free_marshal_spec (mspecs [i]);
8996 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8997 mono_error_assert_ok (&error);
8998 return compiled_ptr;
9001 sig = mono_method_signature (method);
9002 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9004 param_count = sig->param_count + sig->hasthis;
9006 for (i = 0; i < param_count; i++)
9007 mono_mb_emit_ldarg (mb, i);
9009 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9010 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9012 mono_mb_emit_op (mb, CEE_CALL, method);
9013 mono_mb_emit_byte (mb, CEE_RET);
9018 method = mono_mb_create (mb, sig, param_count, NULL);
9021 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
9022 mono_error_assert_ok (&error);
9023 return compiled_ptr;
9029 * The code directly following this is the cache hit, value positive branch
9031 * This function takes a new method builder with 0 locals and adds two locals
9032 * to create multiple out-branches and the fall through state of having the object
9033 * on the stack after a cache miss
9036 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
9037 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
9038 MonoMethodBuilder *mb)
9042 /* allocate local 0 (pointer) obj_vtable */
9043 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9044 /* allocate local 1 (pointer) cached_vtable */
9045 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9048 mono_mb_emit_ldarg (mb, obj_arg_position);
9049 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
9051 /*obj_vtable = obj->vtable;*/
9052 mono_mb_emit_ldarg (mb, obj_arg_position);
9053 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9054 mono_mb_emit_byte (mb, CEE_LDIND_I);
9055 mono_mb_emit_stloc (mb, 0);
9057 /* cached_vtable = *cache*/
9058 mono_mb_emit_ldarg (mb, cache_arg_position);
9059 mono_mb_emit_byte (mb, CEE_LDIND_I);
9060 mono_mb_emit_stloc (mb, 1);
9062 mono_mb_emit_ldloc (mb, 1);
9063 mono_mb_emit_byte (mb, CEE_LDC_I4);
9064 mono_mb_emit_i4 (mb, ~0x1);
9065 mono_mb_emit_byte (mb, CEE_CONV_I);
9066 mono_mb_emit_byte (mb, CEE_AND);
9067 mono_mb_emit_ldloc (mb, 0);
9068 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9069 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9071 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9072 mono_mb_emit_ldloc (mb, 1);
9073 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9074 mono_mb_emit_byte (mb, CEE_CONV_U);
9075 mono_mb_emit_byte (mb, CEE_AND);
9076 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
9077 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9080 mono_mb_patch_branch (mb, cache_miss_pos);
9083 mono_mb_emit_ldarg (mb, obj_arg_position);
9084 mono_mb_emit_ldarg (mb, class_arg_position);
9085 mono_mb_emit_ldarg (mb, cache_arg_position);
9086 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
9089 #endif /* DISABLE_JIT */
9092 * mono_marshal_get_castclass_with_cache:
9093 * This does the equivalent of \c mono_object_castclass_with_cache.
9096 mono_marshal_get_castclass_with_cache (void)
9098 static MonoMethod *cached;
9100 MonoMethodBuilder *mb;
9101 MonoMethodSignature *sig;
9102 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
9105 const int obj_arg_position = 0;
9106 const int class_arg_position = 1;
9107 const int cache_arg_position = 2;
9112 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9113 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9114 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9115 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9116 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9117 sig->ret = &mono_defaults.object_class->byval_arg;
9121 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9122 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9123 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9126 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9127 mono_mb_emit_ldarg (mb, obj_arg_position);
9128 mono_mb_emit_byte (mb, CEE_RET);
9131 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9132 mono_mb_patch_branch (mb, invalid_cast_pos);
9133 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9136 mono_mb_patch_branch (mb, return_null_pos);
9137 mono_mb_emit_byte (mb, CEE_LDNULL);
9138 mono_mb_emit_byte (mb, CEE_RET);
9139 #endif /* DISABLE_JIT */
9141 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9142 res = mono_mb_create (mb, sig, 8, info);
9145 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9146 mono_free_method (res);
9147 mono_metadata_free_method_signature (sig);
9154 /* this is an icall */
9156 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
9159 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
9160 if (mono_error_set_pending_exception (&error))
9163 if (mono_object_is_transparent_proxy (obj))
9166 uintptr_t cache_update = (uintptr_t)obj->vtable;
9168 cache_update = cache_update | 0x1;
9170 *cache = cache_update;
9176 * mono_marshal_get_isinst_with_cache:
9177 * This does the equivalent of \c mono_marshal_isinst_with_cache.
9180 mono_marshal_get_isinst_with_cache (void)
9182 static MonoMethod *cached;
9184 MonoMethodBuilder *mb;
9185 MonoMethodSignature *sig;
9186 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
9189 const int obj_arg_position = 0;
9190 const int class_arg_position = 1;
9191 const int cache_arg_position = 2;
9196 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9197 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9199 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9201 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9203 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9204 sig->ret = &mono_defaults.object_class->byval_arg;
9208 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9209 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9210 // Return the object gotten via the slow path.
9211 mono_mb_emit_byte (mb, CEE_RET);
9214 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9215 mono_mb_patch_branch (mb, return_null_pos);
9216 mono_mb_emit_byte (mb, CEE_LDNULL);
9217 mono_mb_emit_byte (mb, CEE_RET);
9220 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9221 mono_mb_emit_ldarg (mb, obj_arg_position);
9222 mono_mb_emit_byte (mb, CEE_RET);
9225 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9226 res = mono_mb_create (mb, sig, 8, info);
9229 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9230 mono_free_method (res);
9231 mono_metadata_free_method_signature (sig);
9239 * mono_marshal_get_struct_to_ptr:
9240 * \param klass \c MonoClass
9242 * Generates IL code for <code>StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)</code>
9245 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9247 MonoMethodBuilder *mb;
9248 static MonoMethod *stoptr = NULL;
9252 g_assert (klass != NULL);
9254 mono_marshal_load_type_info (klass);
9256 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9257 if (marshal_info->str_to_ptr)
9258 return marshal_info->str_to_ptr;
9261 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9264 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9267 if (klass->blittable) {
9268 mono_mb_emit_byte (mb, CEE_LDARG_1);
9269 mono_mb_emit_byte (mb, CEE_LDARG_0);
9270 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9271 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9272 mono_mb_emit_byte (mb, CEE_PREFIX1);
9273 mono_mb_emit_byte (mb, CEE_CPBLK);
9276 /* allocate local 0 (pointer) src_ptr */
9277 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9278 /* allocate local 1 (pointer) dst_ptr */
9279 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9280 /* allocate local 2 (boolean) delete_old */
9281 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9282 mono_mb_emit_byte (mb, CEE_LDARG_2);
9283 mono_mb_emit_stloc (mb, 2);
9285 /* initialize src_ptr to point to the start of object data */
9286 mono_mb_emit_byte (mb, CEE_LDARG_0);
9287 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9288 mono_mb_emit_stloc (mb, 0);
9290 /* initialize dst_ptr */
9291 mono_mb_emit_byte (mb, CEE_LDARG_1);
9292 mono_mb_emit_stloc (mb, 1);
9294 emit_struct_conv (mb, klass, FALSE);
9297 mono_mb_emit_byte (mb, CEE_RET);
9299 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9300 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9303 mono_marshal_lock ();
9304 if (!marshal_info->str_to_ptr)
9305 marshal_info->str_to_ptr = res;
9307 res = marshal_info->str_to_ptr;
9308 mono_marshal_unlock ();
9313 * mono_marshal_get_ptr_to_struct:
9314 * \param klass \c MonoClass
9315 * Generates IL code for <code>PtrToStructure (IntPtr src, object structure)</code>
9318 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9320 MonoMethodBuilder *mb;
9321 static MonoMethodSignature *ptostr = NULL;
9325 g_assert (klass != NULL);
9327 mono_marshal_load_type_info (klass);
9329 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9330 if (marshal_info->ptr_to_str)
9331 return marshal_info->ptr_to_str;
9334 MonoMethodSignature *sig;
9336 /* Create the signature corresponding to
9337 static void PtrToStructure (IntPtr ptr, object structure);
9338 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9339 sig = mono_create_icall_signature ("void ptr object");
9340 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9342 mono_memory_barrier ();
9346 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9349 if (klass->blittable) {
9350 mono_mb_emit_byte (mb, CEE_LDARG_1);
9351 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9352 mono_mb_emit_byte (mb, CEE_LDARG_0);
9353 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9354 mono_mb_emit_byte (mb, CEE_PREFIX1);
9355 mono_mb_emit_byte (mb, CEE_CPBLK);
9358 /* allocate local 0 (pointer) src_ptr */
9359 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9360 /* allocate local 1 (pointer) dst_ptr */
9361 mono_mb_add_local (mb, &klass->this_arg);
9363 /* initialize src_ptr to point to the start of object data */
9364 mono_mb_emit_byte (mb, CEE_LDARG_0);
9365 mono_mb_emit_stloc (mb, 0);
9367 /* initialize dst_ptr */
9368 mono_mb_emit_byte (mb, CEE_LDARG_1);
9369 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9370 mono_mb_emit_stloc (mb, 1);
9372 emit_struct_conv (mb, klass, TRUE);
9375 mono_mb_emit_byte (mb, CEE_RET);
9377 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9378 res = mono_mb_create (mb, ptostr, 0, info);
9381 mono_marshal_lock ();
9382 if (!marshal_info->ptr_to_str)
9383 marshal_info->ptr_to_str = res;
9385 res = marshal_info->ptr_to_str;
9386 mono_marshal_unlock ();
9391 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9392 * This is used to avoid infinite recursion since it is hard to determine where to
9393 * replace a method with its synchronized wrapper, and where not.
9394 * The runtime should execute METHOD instead of the wrapper.
9397 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9399 MonoMethodBuilder *mb;
9401 MonoMethodSignature *sig;
9403 MonoGenericContext *ctx = NULL;
9404 MonoGenericContainer *container = NULL;
9406 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9407 ctx = &((MonoMethodInflated*)method)->context;
9408 method = ((MonoMethodInflated*)method)->declaring;
9409 container = mono_method_get_generic_container (method);
9411 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9412 g_assert (container);
9415 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9417 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9418 mono_mb_emit_byte (mb, CEE_RET);
9420 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9422 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9423 info->d.synchronized_inner.method = method;
9424 res = mono_mb_create (mb, sig, 0, info);
9428 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9429 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9435 * mono_marshal_get_synchronized_wrapper:
9436 * Generates IL code for the synchronized wrapper: the generated method
9437 * calls \p method while locking \c this or the parent type.
9440 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9442 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9443 MonoMethodSignature *sig;
9444 MonoExceptionClause *clause;
9445 MonoMethodBuilder *mb;
9449 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9450 MonoGenericContext *ctx = NULL;
9451 MonoMethod *orig_method = NULL;
9452 MonoGenericContainer *container = NULL;
9456 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9459 /* FIXME: Support generic methods too */
9460 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9461 orig_method = method;
9462 ctx = &((MonoMethodInflated*)method)->context;
9463 method = ((MonoMethodInflated*)method)->declaring;
9464 container = mono_method_get_generic_container (method);
9466 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9467 g_assert (container);
9474 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9475 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9479 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9480 if ((res = mono_marshal_find_in_cache (cache, method)))
9484 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9487 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9489 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9490 info->d.synchronized.method = method;
9493 mb->skip_visibility = 1;
9495 if (!MONO_TYPE_IS_VOID (sig->ret))
9496 ret_local = mono_mb_add_local (mb, sig->ret);
9499 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9500 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9501 mono_class_set_type_load_failure (method->klass, "");
9503 /* This will throw the type load exception when the wrapper is compiled */
9504 mono_mb_emit_byte (mb, CEE_LDNULL);
9505 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9506 mono_mb_emit_byte (mb, CEE_POP);
9508 if (!MONO_TYPE_IS_VOID (sig->ret))
9509 mono_mb_emit_ldloc (mb, ret_local);
9510 mono_mb_emit_byte (mb, CEE_RET);
9513 res = mono_mb_create_and_cache_full (cache, method,
9514 mb, sig, sig->param_count + 16, info, NULL);
9522 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9523 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9525 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9526 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9529 mono_marshal_lock ();
9531 if (!enter_method) {
9532 MonoMethodDesc *desc;
9534 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9535 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9536 g_assert (enter_method);
9537 mono_method_desc_free (desc);
9539 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9540 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9541 g_assert (exit_method);
9542 mono_method_desc_free (desc);
9544 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9545 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9546 g_assert (gettypefromhandle_method);
9547 mono_method_desc_free (desc);
9550 mono_marshal_unlock ();
9553 /* Push this or the type object */
9554 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9555 /* We have special handling for this in the JIT */
9556 int index = mono_mb_add_data (mb, method->klass);
9557 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9558 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9559 mono_mb_emit_i4 (mb, index);
9561 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9564 mono_mb_emit_ldarg (mb, 0);
9565 mono_mb_emit_stloc (mb, this_local);
9567 /* Call Monitor::Enter() */
9568 mono_mb_emit_ldloc (mb, this_local);
9569 mono_mb_emit_ldloc_addr (mb, taken_local);
9570 mono_mb_emit_managed_call (mb, enter_method, NULL);
9572 clause->try_offset = mono_mb_get_label (mb);
9574 /* Call the method */
9576 mono_mb_emit_ldarg (mb, 0);
9577 for (i = 0; i < sig->param_count; i++)
9578 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9582 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9583 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9585 mono_mb_emit_managed_call (mb, method, NULL);
9588 if (!MONO_TYPE_IS_VOID (sig->ret))
9589 mono_mb_emit_stloc (mb, ret_local);
9591 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9593 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9594 clause->handler_offset = mono_mb_get_label (mb);
9596 /* Call Monitor::Exit() if needed */
9597 mono_mb_emit_ldloc (mb, taken_local);
9598 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9599 mono_mb_emit_ldloc (mb, this_local);
9600 mono_mb_emit_managed_call (mb, exit_method, NULL);
9601 mono_mb_patch_branch (mb, pos2);
9602 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9604 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9606 mono_mb_patch_branch (mb, pos);
9607 if (!MONO_TYPE_IS_VOID (sig->ret))
9608 mono_mb_emit_ldloc (mb, ret_local);
9609 mono_mb_emit_byte (mb, CEE_RET);
9611 mono_mb_set_clauses (mb, 1, clause);
9616 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9617 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9619 res = mono_mb_create_and_cache_full (cache, method,
9620 mb, sig, sig->param_count + 16, info, NULL);
9629 * mono_marshal_get_unbox_wrapper:
9630 * The returned method calls \p method unboxing the \c this argument.
9633 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9635 MonoMethodSignature *sig = mono_method_signature (method);
9637 MonoMethodBuilder *mb;
9642 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9644 if ((res = mono_marshal_find_in_cache (cache, method)))
9647 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9649 g_assert (sig->hasthis);
9652 mono_mb_emit_ldarg (mb, 0);
9653 mono_mb_emit_icon (mb, sizeof (MonoObject));
9654 mono_mb_emit_byte (mb, CEE_ADD);
9655 for (i = 0; i < sig->param_count; ++i)
9656 mono_mb_emit_ldarg (mb, i + 1);
9657 mono_mb_emit_managed_call (mb, method, NULL);
9658 mono_mb_emit_byte (mb, CEE_RET);
9661 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9662 info->d.unbox.method = method;
9664 res = mono_mb_create_and_cache_full (cache, method,
9665 mb, sig, sig->param_count + 16, info, NULL);
9668 /* mono_method_print_code (res); */
9674 STELEMREF_OBJECT, /*no check at all*/
9675 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9676 STELEMREF_CLASS, /*only the klass->parents check*/
9677 STELEMREF_CLASS_SMALL_IDEPTH, /* like STELEMREF_CLASS bit without the idepth check */
9678 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9679 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9680 STELEMREF_KIND_COUNT
9683 static const char *strelemref_wrapper_name[] = {
9684 "object", "sealed_class", "class", "class_small_idepth", "interface", "complex"
9688 is_monomorphic_array (MonoClass *klass)
9690 MonoClass *element_class;
9691 if (klass->rank != 1)
9694 element_class = klass->element_class;
9695 return mono_class_is_sealed (element_class) || element_class->valuetype;
9699 get_virtual_stelemref_kind (MonoClass *element_class)
9701 if (element_class == mono_defaults.object_class)
9702 return STELEMREF_OBJECT;
9703 if (is_monomorphic_array (element_class))
9704 return STELEMREF_SEALED_CLASS;
9705 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9706 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9707 #ifdef COMPRESSED_INTERFACE_BITMAP
9708 return STELEMREF_COMPLEX;
9710 return STELEMREF_INTERFACE;
9712 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9713 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9714 return STELEMREF_COMPLEX;
9715 if (mono_class_is_sealed (element_class))
9716 return STELEMREF_SEALED_CLASS;
9717 if (element_class->idepth <= MONO_DEFAULT_SUPERTABLE_SIZE)
9718 return STELEMREF_CLASS_SMALL_IDEPTH;
9720 return STELEMREF_CLASS;
9726 load_array_element_address (MonoMethodBuilder *mb)
9728 mono_mb_emit_ldarg (mb, 0);
9729 mono_mb_emit_ldarg (mb, 1);
9730 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9734 load_array_class (MonoMethodBuilder *mb, int aklass)
9736 mono_mb_emit_ldarg (mb, 0);
9737 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9738 mono_mb_emit_byte (mb, CEE_LDIND_I);
9739 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9740 mono_mb_emit_byte (mb, CEE_LDIND_I);
9741 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9742 mono_mb_emit_byte (mb, CEE_LDIND_I);
9743 mono_mb_emit_stloc (mb, aklass);
9747 load_value_class (MonoMethodBuilder *mb, int vklass)
9749 mono_mb_emit_ldarg (mb, 2);
9750 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9751 mono_mb_emit_byte (mb, CEE_LDIND_I);
9752 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9753 mono_mb_emit_byte (mb, CEE_LDIND_I);
9754 mono_mb_emit_stloc (mb, vklass);
9760 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9762 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9763 printf ("slow vstore of %s\n", name);
9770 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9771 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9772 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9773 * - Add a case for arrays of arrays.
9776 get_virtual_stelemref_wrapper (int kind)
9778 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9779 static MonoMethodSignature *signature;
9780 MonoMethodBuilder *mb;
9783 const char *param_names [16];
9784 guint32 b1, b2, b3, b4;
9785 int aklass, vklass, vtable, uiid;
9786 int array_slot_addr;
9789 if (cached_methods [kind])
9790 return cached_methods [kind];
9792 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9793 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9797 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9799 /* void this::stelemref (size_t idx, void* value) */
9800 sig->ret = &mono_defaults.void_class->byval_arg;
9801 sig->hasthis = TRUE;
9802 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9803 sig->params [1] = &mono_defaults.object_class->byval_arg;
9808 param_names [0] = "index";
9809 param_names [1] = "value";
9810 mono_mb_set_param_names (mb, param_names);
9812 /*For now simply call plain old stelemref*/
9814 case STELEMREF_OBJECT:
9815 /* ldelema (implicit bound check) */
9816 load_array_element_address (mb);
9818 mono_mb_emit_ldarg (mb, 2);
9819 mono_mb_emit_byte (mb, CEE_STIND_REF);
9820 mono_mb_emit_byte (mb, CEE_RET);
9823 case STELEMREF_COMPLEX: {
9826 <ldelema (bound check)>
9829 if (!mono_object_isinst (value, aklass))
9833 *array_slot_addr = value;
9836 throw new ArrayTypeMismatchException ();
9839 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9840 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9841 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9845 /*Use this to debug/record stores that are going thru the slow path*/
9846 MonoMethodSignature *csig;
9847 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9848 csig->ret = &mono_defaults.void_class->byval_arg;
9849 csig->params [0] = &mono_defaults.object_class->byval_arg;
9850 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9851 csig->params [2] = &mono_defaults.object_class->byval_arg;
9852 mono_mb_emit_ldarg (mb, 0);
9853 mono_mb_emit_ldarg (mb, 1);
9854 mono_mb_emit_ldarg (mb, 2);
9855 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9859 /* ldelema (implicit bound check) */
9860 load_array_element_address (mb);
9861 mono_mb_emit_stloc (mb, array_slot_addr);
9863 /* if (!value) goto do_store */
9864 mono_mb_emit_ldarg (mb, 2);
9865 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9867 /* aklass = array->vtable->klass->element_class */
9868 load_array_class (mb, aklass);
9869 /* vklass = value->vtable->klass */
9870 load_value_class (mb, vklass);
9873 mono_mb_emit_ldloc (mb, vklass);
9874 mono_mb_emit_ldloc (mb, aklass);
9875 b_fast = mono_mb_emit_branch (mb, CEE_BEQ);
9877 /*if (mono_object_isinst (value, aklass)) */
9878 mono_mb_emit_ldarg (mb, 2);
9879 mono_mb_emit_ldloc (mb, aklass);
9880 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9881 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9884 mono_mb_patch_branch (mb, b1);
9885 mono_mb_patch_branch (mb, b_fast);
9886 mono_mb_emit_ldloc (mb, array_slot_addr);
9887 mono_mb_emit_ldarg (mb, 2);
9888 mono_mb_emit_byte (mb, CEE_STIND_REF);
9889 mono_mb_emit_byte (mb, CEE_RET);
9892 mono_mb_patch_branch (mb, b2);
9894 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9897 case STELEMREF_SEALED_CLASS:
9899 <ldelema (bound check)>
9903 aklass = array->vtable->klass->element_class;
9904 vklass = value->vtable->klass;
9906 if (vklass != aklass)
9910 *array_slot_addr = value;
9913 throw new ArrayTypeMismatchException ();
9915 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9916 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9917 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9919 /* ldelema (implicit bound check) */
9920 load_array_element_address (mb);
9921 mono_mb_emit_stloc (mb, array_slot_addr);
9923 /* if (!value) goto do_store */
9924 mono_mb_emit_ldarg (mb, 2);
9925 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9927 /* aklass = array->vtable->klass->element_class */
9928 load_array_class (mb, aklass);
9930 /* vklass = value->vtable->klass */
9931 load_value_class (mb, vklass);
9933 /*if (vklass != aklass) goto do_exception; */
9934 mono_mb_emit_ldloc (mb, aklass);
9935 mono_mb_emit_ldloc (mb, vklass);
9936 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9939 mono_mb_patch_branch (mb, b1);
9940 mono_mb_emit_ldloc (mb, array_slot_addr);
9941 mono_mb_emit_ldarg (mb, 2);
9942 mono_mb_emit_byte (mb, CEE_STIND_REF);
9943 mono_mb_emit_byte (mb, CEE_RET);
9946 mono_mb_patch_branch (mb, b2);
9947 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9950 case STELEMREF_CLASS: {
9953 <ldelema (bound check)>
9957 aklass = array->vtable->klass->element_class;
9958 vklass = value->vtable->klass;
9960 if (vklass->idepth < aklass->idepth)
9963 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9967 *array_slot_addr = value;
9971 throw new ArrayTypeMismatchException ();
9973 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9974 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9975 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9977 /* ldelema (implicit bound check) */
9978 load_array_element_address (mb);
9979 mono_mb_emit_stloc (mb, array_slot_addr);
9981 /* if (!value) goto do_store */
9982 mono_mb_emit_ldarg (mb, 2);
9983 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9985 /* aklass = array->vtable->klass->element_class */
9986 load_array_class (mb, aklass);
9988 /* vklass = value->vtable->klass */
9989 load_value_class (mb, vklass);
9991 /* if (vklass->idepth < aklass->idepth) goto failue */
9992 mono_mb_emit_ldloc (mb, vklass);
9993 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9994 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9996 mono_mb_emit_ldloc (mb, aklass);
9997 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9998 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10000 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10002 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10003 mono_mb_emit_ldloc (mb, vklass);
10004 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10005 mono_mb_emit_byte (mb, CEE_LDIND_I);
10007 mono_mb_emit_ldloc (mb, aklass);
10008 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10009 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10010 mono_mb_emit_icon (mb, 1);
10011 mono_mb_emit_byte (mb, CEE_SUB);
10012 mono_mb_emit_icon (mb, sizeof (void*));
10013 mono_mb_emit_byte (mb, CEE_MUL);
10014 mono_mb_emit_byte (mb, CEE_ADD);
10015 mono_mb_emit_byte (mb, CEE_LDIND_I);
10017 mono_mb_emit_ldloc (mb, aklass);
10018 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10021 mono_mb_patch_branch (mb, b1);
10022 mono_mb_emit_ldloc (mb, array_slot_addr);
10023 mono_mb_emit_ldarg (mb, 2);
10024 mono_mb_emit_byte (mb, CEE_STIND_REF);
10025 mono_mb_emit_byte (mb, CEE_RET);
10027 /* do_exception: */
10028 mono_mb_patch_branch (mb, b3);
10029 mono_mb_patch_branch (mb, b4);
10031 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10035 case STELEMREF_CLASS_SMALL_IDEPTH:
10038 <ldelema (bound check)>
10042 aklass = array->vtable->klass->element_class;
10043 vklass = value->vtable->klass;
10045 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10049 *array_slot_addr = value;
10053 throw new ArrayTypeMismatchException ();
10055 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10056 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10057 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10059 /* ldelema (implicit bound check) */
10060 load_array_element_address (mb);
10061 mono_mb_emit_stloc (mb, array_slot_addr);
10063 /* if (!value) goto do_store */
10064 mono_mb_emit_ldarg (mb, 2);
10065 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10067 /* aklass = array->vtable->klass->element_class */
10068 load_array_class (mb, aklass);
10070 /* vklass = value->vtable->klass */
10071 load_value_class (mb, vklass);
10073 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10074 mono_mb_emit_ldloc (mb, vklass);
10075 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10076 mono_mb_emit_byte (mb, CEE_LDIND_I);
10078 mono_mb_emit_ldloc (mb, aklass);
10079 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10080 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10081 mono_mb_emit_icon (mb, 1);
10082 mono_mb_emit_byte (mb, CEE_SUB);
10083 mono_mb_emit_icon (mb, sizeof (void*));
10084 mono_mb_emit_byte (mb, CEE_MUL);
10085 mono_mb_emit_byte (mb, CEE_ADD);
10086 mono_mb_emit_byte (mb, CEE_LDIND_I);
10088 mono_mb_emit_ldloc (mb, aklass);
10089 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10092 mono_mb_patch_branch (mb, b1);
10093 mono_mb_emit_ldloc (mb, array_slot_addr);
10094 mono_mb_emit_ldarg (mb, 2);
10095 mono_mb_emit_byte (mb, CEE_STIND_REF);
10096 mono_mb_emit_byte (mb, CEE_RET);
10098 /* do_exception: */
10099 mono_mb_patch_branch (mb, b4);
10101 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10104 case STELEMREF_INTERFACE:
10111 klass = array->obj.vtable->klass->element_class;
10112 vt = value->vtable;
10113 uiid = klass->interface_id;
10114 if (uiid > vt->max_interface_id)
10116 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10119 mono_array_setref (array, index, value);
10122 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10124 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10125 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10126 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10127 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10129 /* ldelema (implicit bound check) */
10130 load_array_element_address (mb);
10131 mono_mb_emit_stloc (mb, array_slot_addr);
10133 /* if (!value) goto do_store */
10134 mono_mb_emit_ldarg (mb, 2);
10135 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10137 /* klass = array->vtable->klass->element_class */
10138 load_array_class (mb, aklass);
10140 /* vt = value->vtable */
10141 mono_mb_emit_ldarg (mb, 2);
10142 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10143 mono_mb_emit_byte (mb, CEE_LDIND_I);
10144 mono_mb_emit_stloc (mb, vtable);
10146 /* uiid = klass->interface_id; */
10147 mono_mb_emit_ldloc (mb, aklass);
10148 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
10149 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10150 mono_mb_emit_stloc (mb, uiid);
10152 /*if (uiid > vt->max_interface_id)*/
10153 mono_mb_emit_ldloc (mb, uiid);
10154 mono_mb_emit_ldloc (mb, vtable);
10155 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
10156 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10157 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10159 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10161 /*vt->interface_bitmap*/
10162 mono_mb_emit_ldloc (mb, vtable);
10163 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10164 mono_mb_emit_byte (mb, CEE_LDIND_I);
10167 mono_mb_emit_ldloc (mb, uiid);
10168 mono_mb_emit_icon (mb, 3);
10169 mono_mb_emit_byte (mb, CEE_SHR_UN);
10171 /*vt->interface_bitmap [(uiid) >> 3]*/
10172 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10173 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10175 /*(1 << ((uiid)&7)))*/
10176 mono_mb_emit_icon (mb, 1);
10177 mono_mb_emit_ldloc (mb, uiid);
10178 mono_mb_emit_icon (mb, 7);
10179 mono_mb_emit_byte (mb, CEE_AND);
10180 mono_mb_emit_byte (mb, CEE_SHL);
10182 /*bitwise and the whole thing*/
10183 mono_mb_emit_byte (mb, CEE_AND);
10184 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10187 mono_mb_patch_branch (mb, b1);
10188 mono_mb_emit_ldloc (mb, array_slot_addr);
10189 mono_mb_emit_ldarg (mb, 2);
10190 mono_mb_emit_byte (mb, CEE_STIND_REF);
10191 mono_mb_emit_byte (mb, CEE_RET);
10193 /* do_exception: */
10194 mono_mb_patch_branch (mb, b2);
10195 mono_mb_patch_branch (mb, b3);
10196 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10200 mono_mb_emit_ldarg (mb, 0);
10201 mono_mb_emit_ldarg (mb, 1);
10202 mono_mb_emit_ldarg (mb, 2);
10203 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10204 mono_mb_emit_byte (mb, CEE_RET);
10207 #endif /* DISABLE_JIT */
10208 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10209 info->d.virtual_stelemref.kind = kind;
10210 res = mono_mb_create (mb, signature, 4, info);
10211 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10213 mono_marshal_lock ();
10214 if (!cached_methods [kind]) {
10215 cached_methods [kind] = res;
10216 mono_marshal_unlock ();
10218 mono_marshal_unlock ();
10219 mono_free_method (res);
10223 return cached_methods [kind];
10227 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10231 g_assert (array_class->rank == 1);
10232 kind = get_virtual_stelemref_kind (array_class->element_class);
10234 return get_virtual_stelemref_wrapper (kind);
10238 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10243 *nwrappers = STELEMREF_KIND_COUNT;
10244 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10245 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10246 res [i] = get_virtual_stelemref_wrapper (i);
10251 * mono_marshal_get_stelemref:
10254 mono_marshal_get_stelemref (void)
10256 static MonoMethod* ret = NULL;
10257 MonoMethodSignature *sig;
10258 MonoMethodBuilder *mb;
10261 guint32 b1, b2, b3, b4;
10263 int aklass, vklass;
10264 int array_slot_addr;
10269 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10272 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10274 /* void stelemref (void* array, int idx, void* value) */
10275 sig->ret = &mono_defaults.void_class->byval_arg;
10276 sig->params [0] = &mono_defaults.object_class->byval_arg;
10277 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10278 sig->params [2] = &mono_defaults.object_class->byval_arg;
10280 #ifndef DISABLE_JIT
10281 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10282 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10283 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10287 <ldelema (bound check)>
10291 aklass = array->vtable->klass->element_class;
10292 vklass = value->vtable->klass;
10294 if (vklass->idepth < aklass->idepth)
10297 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10301 *array_slot_addr = value;
10305 if (mono_object_isinst (value, aklass))
10308 throw new ArrayTypeMismatchException ();
10311 /* ldelema (implicit bound check) */
10312 mono_mb_emit_ldarg (mb, 0);
10313 mono_mb_emit_ldarg (mb, 1);
10314 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10315 mono_mb_emit_stloc (mb, array_slot_addr);
10317 /* if (!value) goto do_store */
10318 mono_mb_emit_ldarg (mb, 2);
10319 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10321 /* aklass = array->vtable->klass->element_class */
10322 mono_mb_emit_ldarg (mb, 0);
10323 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10324 mono_mb_emit_byte (mb, CEE_LDIND_I);
10325 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10326 mono_mb_emit_byte (mb, CEE_LDIND_I);
10327 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10328 mono_mb_emit_byte (mb, CEE_LDIND_I);
10329 mono_mb_emit_stloc (mb, aklass);
10331 /* vklass = value->vtable->klass */
10332 mono_mb_emit_ldarg (mb, 2);
10333 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10334 mono_mb_emit_byte (mb, CEE_LDIND_I);
10335 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10336 mono_mb_emit_byte (mb, CEE_LDIND_I);
10337 mono_mb_emit_stloc (mb, vklass);
10339 /* if (vklass->idepth < aklass->idepth) goto failue */
10340 mono_mb_emit_ldloc (mb, vklass);
10341 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10342 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10344 mono_mb_emit_ldloc (mb, aklass);
10345 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10346 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10348 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10350 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10351 mono_mb_emit_ldloc (mb, vklass);
10352 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10353 mono_mb_emit_byte (mb, CEE_LDIND_I);
10355 mono_mb_emit_ldloc (mb, aklass);
10356 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10357 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10358 mono_mb_emit_icon (mb, 1);
10359 mono_mb_emit_byte (mb, CEE_SUB);
10360 mono_mb_emit_icon (mb, sizeof (void*));
10361 mono_mb_emit_byte (mb, CEE_MUL);
10362 mono_mb_emit_byte (mb, CEE_ADD);
10363 mono_mb_emit_byte (mb, CEE_LDIND_I);
10365 mono_mb_emit_ldloc (mb, aklass);
10367 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10369 copy_pos = mono_mb_get_label (mb);
10371 mono_mb_patch_branch (mb, b1);
10372 mono_mb_emit_ldloc (mb, array_slot_addr);
10373 mono_mb_emit_ldarg (mb, 2);
10374 mono_mb_emit_byte (mb, CEE_STIND_REF);
10376 mono_mb_emit_byte (mb, CEE_RET);
10379 mono_mb_patch_branch (mb, b2);
10380 mono_mb_patch_branch (mb, b3);
10382 mono_mb_emit_ldarg (mb, 2);
10383 mono_mb_emit_ldloc (mb, aklass);
10384 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10386 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10387 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10388 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10390 mono_mb_emit_byte (mb, CEE_RET);
10392 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10393 ret = mono_mb_create (mb, sig, 4, info);
10400 * mono_marshal_get_gsharedvt_in_wrapper:
10402 * This wrapper handles calls from normal code to gsharedvt code.
10405 mono_marshal_get_gsharedvt_in_wrapper (void)
10407 static MonoMethod* ret = NULL;
10408 MonoMethodSignature *sig;
10409 MonoMethodBuilder *mb;
10415 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10417 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10418 sig->ret = &mono_defaults.void_class->byval_arg;
10420 #ifndef DISABLE_JIT
10422 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10424 mono_mb_emit_byte (mb, CEE_RET);
10426 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10427 ret = mono_mb_create (mb, sig, 4, info);
10434 * mono_marshal_get_gsharedvt_out_wrapper:
10436 * This wrapper handles calls from gsharedvt code to normal code.
10439 mono_marshal_get_gsharedvt_out_wrapper (void)
10441 static MonoMethod* ret = NULL;
10442 MonoMethodSignature *sig;
10443 MonoMethodBuilder *mb;
10449 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10451 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10452 sig->ret = &mono_defaults.void_class->byval_arg;
10454 #ifndef DISABLE_JIT
10456 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10458 mono_mb_emit_byte (mb, CEE_RET);
10460 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10461 ret = mono_mb_create (mb, sig, 4, info);
10470 MonoMethod *method;
10473 /* LOCKING: vars accessed under the marshal lock */
10474 static ArrayElemAddr *elem_addr_cache = NULL;
10475 static int elem_addr_cache_size = 0;
10476 static int elem_addr_cache_next = 0;
10479 * mono_marshal_get_array_address:
10480 * \param rank rank of the array type
10481 * \param elem_size size in bytes of an element of an array.
10483 * Returns a MonoMethod that implements the code to get the address
10484 * of an element in a multi-dimenasional array of \p rank dimensions.
10485 * The returned method takes an array as the first argument and then
10486 * \p rank indexes for the \p rank dimensions.
10487 * If ELEM_SIZE is 0, read the array size from the array object.
10490 mono_marshal_get_array_address (int rank, int elem_size)
10493 MonoMethodBuilder *mb;
10494 MonoMethodSignature *sig;
10497 int i, bounds, ind, realidx;
10498 int branch_pos, *branch_positions;
10502 mono_marshal_lock ();
10503 for (i = 0; i < elem_addr_cache_next; ++i) {
10504 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10505 ret = elem_addr_cache [i].method;
10509 mono_marshal_unlock ();
10513 branch_positions = g_new0 (int, rank);
10515 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10517 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10518 sig->ret = &mono_defaults.int_class->byval_arg;
10519 sig->params [0] = &mono_defaults.object_class->byval_arg;
10520 for (i = 0; i < rank; ++i) {
10521 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10524 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10525 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10528 #ifndef DISABLE_JIT
10529 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10530 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10531 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10533 /* bounds = array->bounds; */
10534 mono_mb_emit_ldarg (mb, 0);
10535 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10536 mono_mb_emit_byte (mb, CEE_LDIND_I);
10537 mono_mb_emit_stloc (mb, bounds);
10539 /* ind is the overall element index, realidx is the partial index in a single dimension */
10540 /* ind = idx0 - bounds [0].lower_bound */
10541 mono_mb_emit_ldarg (mb, 1);
10542 mono_mb_emit_ldloc (mb, bounds);
10543 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10544 mono_mb_emit_byte (mb, CEE_ADD);
10545 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10546 mono_mb_emit_byte (mb, CEE_SUB);
10547 mono_mb_emit_stloc (mb, ind);
10548 /* if (ind >= bounds [0].length) goto exeception; */
10549 mono_mb_emit_ldloc (mb, ind);
10550 mono_mb_emit_ldloc (mb, bounds);
10551 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10552 mono_mb_emit_byte (mb, CEE_ADD);
10553 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10554 /* note that we use unsigned comparison */
10555 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10557 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10558 * We could also decide to ignore the passed elem_size and get it
10559 * from the array object, to reduce the number of methods we generate:
10560 * the additional cost is 3 memory loads and a non-immediate mul.
10562 for (i = 1; i < rank; ++i) {
10563 /* realidx = idxi - bounds [i].lower_bound */
10564 mono_mb_emit_ldarg (mb, 1 + i);
10565 mono_mb_emit_ldloc (mb, bounds);
10566 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10567 mono_mb_emit_byte (mb, CEE_ADD);
10568 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10569 mono_mb_emit_byte (mb, CEE_SUB);
10570 mono_mb_emit_stloc (mb, realidx);
10571 /* if (realidx >= bounds [i].length) goto exeception; */
10572 mono_mb_emit_ldloc (mb, realidx);
10573 mono_mb_emit_ldloc (mb, bounds);
10574 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10575 mono_mb_emit_byte (mb, CEE_ADD);
10576 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10577 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10578 /* ind = ind * bounds [i].length + realidx */
10579 mono_mb_emit_ldloc (mb, ind);
10580 mono_mb_emit_ldloc (mb, bounds);
10581 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10582 mono_mb_emit_byte (mb, CEE_ADD);
10583 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10584 mono_mb_emit_byte (mb, CEE_MUL);
10585 mono_mb_emit_ldloc (mb, realidx);
10586 mono_mb_emit_byte (mb, CEE_ADD);
10587 mono_mb_emit_stloc (mb, ind);
10590 /* return array->vector + ind * element_size */
10591 mono_mb_emit_ldarg (mb, 0);
10592 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10593 mono_mb_emit_ldloc (mb, ind);
10595 mono_mb_emit_icon (mb, elem_size);
10597 /* Load arr->vtable->klass->sizes.element_class */
10598 mono_mb_emit_ldarg (mb, 0);
10599 mono_mb_emit_byte (mb, CEE_CONV_I);
10600 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10601 mono_mb_emit_byte (mb, CEE_ADD);
10602 mono_mb_emit_byte (mb, CEE_LDIND_I);
10603 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10604 mono_mb_emit_byte (mb, CEE_ADD);
10605 mono_mb_emit_byte (mb, CEE_LDIND_I);
10606 /* sizes is an union, so this reads sizes.element_size */
10607 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10608 mono_mb_emit_byte (mb, CEE_ADD);
10609 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10611 mono_mb_emit_byte (mb, CEE_MUL);
10612 mono_mb_emit_byte (mb, CEE_ADD);
10613 mono_mb_emit_byte (mb, CEE_RET);
10615 /* patch the branches to get here and throw */
10616 for (i = 1; i < rank; ++i) {
10617 mono_mb_patch_branch (mb, branch_positions [i]);
10619 mono_mb_patch_branch (mb, branch_pos);
10620 /* throw exception */
10621 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10623 g_free (branch_positions);
10624 #endif /* DISABLE_JIT */
10626 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10627 info->d.element_addr.rank = rank;
10628 info->d.element_addr.elem_size = elem_size;
10629 ret = mono_mb_create (mb, sig, 4, info);
10632 /* cache the result */
10634 mono_marshal_lock ();
10635 for (i = 0; i < elem_addr_cache_next; ++i) {
10636 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10637 /* FIXME: free ret */
10638 ret = elem_addr_cache [i].method;
10644 if (elem_addr_cache_next >= elem_addr_cache_size) {
10645 int new_size = elem_addr_cache_size + 4;
10646 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10647 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10648 g_free (elem_addr_cache);
10649 elem_addr_cache = new_array;
10650 elem_addr_cache_size = new_size;
10652 elem_addr_cache [elem_addr_cache_next].rank = rank;
10653 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10654 elem_addr_cache [elem_addr_cache_next].method = ret;
10655 elem_addr_cache_next ++;
10657 mono_marshal_unlock ();
10662 * mono_marshal_get_array_accessor_wrapper:
10664 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10667 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10669 MonoMethodSignature *sig;
10670 MonoMethodBuilder *mb;
10674 MonoGenericContext *ctx = NULL;
10675 MonoMethod *orig_method = NULL;
10676 MonoGenericContainer *container = NULL;
10680 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10681 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10682 * FIXME: Use generic methods.
10689 g_assert_not_reached ();
10691 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10692 if ((res = mono_marshal_find_in_cache (cache, method)))
10696 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10699 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10701 #ifndef DISABLE_JIT
10702 /* Call the method */
10704 mono_mb_emit_ldarg (mb, 0);
10705 for (i = 0; i < sig->param_count; i++)
10706 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10710 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10711 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10713 mono_mb_emit_managed_call (mb, method, NULL);
10715 mono_mb_emit_byte (mb, CEE_RET);
10718 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10719 info->d.array_accessor.method = method;
10723 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10724 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10726 res = mono_mb_create_and_cache_full (cache, method,
10727 mb, sig, sig->param_count + 16,
10736 static inline void*
10737 mono_marshal_alloc_co_task_mem (size_t size)
10739 if ((gulong)size == 0)
10740 /* This returns a valid pointer for size 0 on MS.NET */
10743 return g_try_malloc ((gulong)size);
10748 * mono_marshal_alloc:
10751 mono_marshal_alloc (gsize size, MonoError *error)
10755 error_init (error);
10757 res = mono_marshal_alloc_co_task_mem (size);
10759 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10764 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10766 ves_icall_marshal_alloc (gsize size)
10769 void *ret = mono_marshal_alloc (size, &error);
10770 if (!mono_error_ok (&error)) {
10771 mono_error_set_pending_exception (&error);
10780 mono_marshal_free_co_task_mem (void *ptr)
10788 * mono_marshal_free:
10791 mono_marshal_free (gpointer ptr)
10793 mono_marshal_free_co_task_mem (ptr);
10797 * mono_marshal_free_array:
10800 mono_marshal_free_array (gpointer *ptr, int size)
10807 for (i = 0; i < size; i++)
10813 mono_marshal_string_to_utf16 (MonoString *s)
10815 return s ? mono_string_chars (s) : NULL;
10818 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10820 mono_marshal_string_to_utf16_copy (MonoString *s)
10826 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10827 if (!mono_error_ok (&error)) {
10828 mono_error_set_pending_exception (&error);
10831 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10832 res [mono_string_length (s)] = 0;
10838 * mono_marshal_set_last_error:
10840 * This function is invoked to set the last error value from a P/Invoke call
10841 * which has \c SetLastError set.
10844 mono_marshal_set_last_error (void)
10847 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10849 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10854 mono_marshal_set_last_error_windows (int error)
10857 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10862 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10863 gpointer dest, gint32 length)
10868 MONO_CHECK_ARG_NULL (src,);
10869 MONO_CHECK_ARG_NULL (dest,);
10871 if (src->obj.vtable->klass->rank != 1) {
10872 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10875 if (start_index < 0) {
10876 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10880 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10883 if (start_index + length > mono_array_length (src)) {
10884 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10888 element_size = mono_array_element_size (src->obj.vtable->klass);
10890 /* no references should be involved */
10891 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10893 memcpy (dest, source_addr, length * element_size);
10897 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10898 MonoArray *dest, gint32 length)
10903 MONO_CHECK_ARG_NULL (src,);
10904 MONO_CHECK_ARG_NULL (dest,);
10906 if (dest->obj.vtable->klass->rank != 1) {
10907 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10910 if (start_index < 0) {
10911 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10915 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10918 if (start_index + length > mono_array_length (dest)) {
10919 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10922 element_size = mono_array_element_size (dest->obj.vtable->klass);
10924 /* no references should be involved */
10925 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10927 memcpy (dest_addr, src, length * element_size);
10931 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10936 return mono_string_new (mono_domain_get (), ptr);
10940 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10943 MonoString *result = NULL;
10944 error_init (&error);
10946 mono_error_set_argument_null (&error, "ptr", "");
10948 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10949 mono_error_set_pending_exception (&error);
10954 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10957 MonoString *res = NULL;
10958 MonoDomain *domain = mono_domain_get ();
10968 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10969 if (!mono_error_ok (&error)) {
10970 mono_error_set_pending_exception (&error);
10977 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10980 MonoString *res = NULL;
10981 MonoDomain *domain = mono_domain_get ();
10983 error_init (&error);
10987 mono_error_set_argument_null (&error, "ptr", "");
10989 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10992 if (!mono_error_ok (&error))
10993 mono_error_set_pending_exception (&error);
10998 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
11000 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
11004 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
11010 MONO_CHECK_ARG_NULL (rtype, 0);
11012 type = rtype->type;
11013 klass = mono_class_from_mono_type (type);
11014 if (!mono_class_init (klass)) {
11015 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11019 layout = (mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK);
11021 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
11022 return sizeof (gpointer);
11023 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11025 MonoException *exc;
11027 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
11028 exc = mono_get_exception_argument ("t", msg);
11030 mono_set_pending_exception (exc);
11034 return mono_class_native_size (klass, NULL);
11038 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
11041 MonoMethod *method;
11044 MONO_CHECK_ARG_NULL (obj,);
11045 MONO_CHECK_ARG_NULL (dst,);
11047 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
11051 pa [2] = &delete_old;
11053 mono_runtime_invoke_checked (method, NULL, pa, &error);
11054 if (!mono_error_ok (&error))
11055 mono_error_set_pending_exception (&error);
11059 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
11061 MonoMethod *method;
11064 error_init (error);
11066 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
11071 mono_runtime_invoke_checked (method, NULL, pa, error);
11075 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
11080 MONO_CHECK_ARG_NULL (src,);
11081 MONO_CHECK_ARG_NULL (dst,);
11083 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
11085 if (t->type == MONO_TYPE_VALUETYPE) {
11086 MonoException *exc;
11089 tmp = g_strdup_printf ("Destination is a boxed value type.");
11090 exc = mono_get_exception_argument ("dst", tmp);
11093 mono_set_pending_exception (exc);
11097 ptr_to_structure (src, dst, &error);
11098 if (!mono_error_ok (&error))
11099 mono_error_set_pending_exception (&error);
11103 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
11107 MonoDomain *domain = mono_domain_get ();
11112 MONO_CHECK_ARG_NULL (type, NULL);
11114 klass = mono_class_from_mono_type (type->type);
11115 if (!mono_class_init (klass)) {
11116 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11120 res = mono_object_new_checked (domain, klass, &error);
11121 if (!mono_error_ok (&error)) {
11122 mono_error_set_pending_exception (&error);
11126 ptr_to_structure (src, res, &error);
11127 if (!mono_error_ok (&error)) {
11128 mono_error_set_pending_exception (&error);
11136 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
11139 MonoMarshalType *info;
11142 int match_index = -1;
11144 MONO_CHECK_ARG_NULL (type, 0);
11145 MONO_CHECK_ARG_NULL (field_name, 0);
11147 fname = mono_string_to_utf8_checked (field_name, &error);
11148 if (mono_error_set_pending_exception (&error))
11150 klass = mono_class_from_mono_type (type->type);
11151 if (!mono_class_init (klass)) {
11152 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11156 while (klass && match_index == -1) {
11157 MonoClassField* field;
11159 gpointer iter = NULL;
11160 while ((field = mono_class_get_fields (klass, &iter))) {
11161 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11163 if (!strcmp (fname, mono_field_get_name (field))) {
11170 if (match_index == -1)
11171 klass = klass->parent;
11176 if(match_index == -1) {
11177 MonoException* exc;
11180 /* Get back original class instance */
11181 klass = mono_class_from_mono_type (type->type);
11183 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
11184 exc = mono_get_exception_argument ("fieldName", tmp);
11187 mono_set_pending_exception ((MonoException*)exc);
11191 info = mono_marshal_load_type_info (klass);
11192 return info->fields [match_index].offset;
11197 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11200 char *ret = mono_string_to_utf8_checked (string, &error);
11201 mono_error_set_pending_exception (&error);
11206 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11208 if (string == NULL)
11211 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
11213 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11214 res [mono_string_length (string)] = 0;
11218 #endif /* !HOST_WIN32 */
11221 mono_struct_delete_old (MonoClass *klass, char *ptr)
11223 MonoMarshalType *info;
11226 info = mono_marshal_load_type_info (klass);
11228 for (i = 0; i < info->num_fields; i++) {
11229 MonoMarshalConv conv;
11230 MonoType *ftype = info->fields [i].field->type;
11233 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11236 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11237 klass->unicode, &conv);
11239 cpos = ptr + info->fields [i].offset;
11242 case MONO_MARSHAL_CONV_NONE:
11243 if (MONO_TYPE_ISSTRUCT (ftype)) {
11244 mono_struct_delete_old (ftype->data.klass, cpos);
11248 case MONO_MARSHAL_CONV_STR_LPWSTR:
11249 /* We assume this field points inside a MonoString */
11251 case MONO_MARSHAL_CONV_STR_LPTSTR:
11252 #ifdef TARGET_WIN32
11253 /* We assume this field points inside a MonoString
11257 case MONO_MARSHAL_CONV_STR_LPSTR:
11258 case MONO_MARSHAL_CONV_STR_BSTR:
11259 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11260 case MONO_MARSHAL_CONV_STR_TBSTR:
11261 case MONO_MARSHAL_CONV_STR_UTF8STR:
11262 mono_marshal_free (*(gpointer *)cpos);
11272 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11276 MONO_CHECK_ARG_NULL (src,);
11277 MONO_CHECK_ARG_NULL (type,);
11279 klass = mono_class_from_mono_type (type->type);
11280 if (!mono_class_init (klass)) {
11281 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11285 mono_struct_delete_old (klass, (char *)src);
11289 static inline void *
11290 mono_marshal_alloc_hglobal (size_t size)
11292 return g_try_malloc (size);
11297 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11300 size_t s = (size_t)size;
11303 /* This returns a valid pointer for size 0 on MS.NET */
11306 res = mono_marshal_alloc_hglobal (s);
11309 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11317 static inline gpointer
11318 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11320 return g_try_realloc (ptr, size);
11325 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11328 size_t s = (size_t)size;
11331 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11335 res = mono_marshal_realloc_hglobal (ptr, s);
11338 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11347 mono_marshal_free_hglobal (gpointer ptr)
11355 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11357 mono_marshal_free_hglobal (ptr);
11361 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11363 void *res = mono_marshal_alloc_co_task_mem (size);
11366 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11373 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11375 void *res = mono_marshal_alloc_co_task_mem (size);
11378 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11385 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11387 mono_marshal_free_co_task_mem (ptr);
11392 static inline gpointer
11393 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11395 return g_try_realloc (ptr, (gulong)size);
11400 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11402 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11405 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11412 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11414 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11418 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11420 MonoClass *klass = mono_type_get_class (type->type);
11421 if (!mono_class_init (klass)) {
11422 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11426 return mono_ftnptr_to_delegate (klass, ftn);
11430 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11432 return mono_delegate_to_ftnptr (delegate);
11436 * mono_marshal_is_loading_type_info:
11438 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11442 mono_marshal_is_loading_type_info (MonoClass *klass)
11444 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11446 return g_slist_find (loads_list, klass) != NULL;
11450 * mono_marshal_load_type_info:
11452 * Initialize \c klass::marshal_info using information from metadata. This function can
11453 * recursively call itself, and the caller is responsible to avoid that by calling
11454 * \c mono_marshal_is_loading_type_info beforehand.
11456 * LOCKING: Acquires the loader lock.
11459 mono_marshal_load_type_info (MonoClass* klass)
11462 guint32 native_size = 0, min_align = 1, packing;
11463 MonoMarshalType *info;
11464 MonoClassField* field;
11467 GSList *loads_list;
11469 g_assert (klass != NULL);
11471 info = mono_class_get_marshal_info (klass);
11475 if (!klass->inited)
11476 mono_class_init (klass);
11478 info = mono_class_get_marshal_info (klass);
11483 * This function can recursively call itself, so we keep the list of classes which are
11484 * under initialization in a TLS list.
11486 g_assert (!mono_marshal_is_loading_type_info (klass));
11487 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11488 loads_list = g_slist_prepend (loads_list, klass);
11489 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11492 while ((field = mono_class_get_fields (klass, &iter))) {
11493 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11495 if (mono_field_is_deleted (field))
11500 layout = mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK;
11502 /* The mempool is protected by the loader lock */
11503 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11504 info->num_fields = count;
11506 /* Try to find a size for this type in metadata */
11507 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11509 if (klass->parent) {
11510 int parent_size = mono_class_native_size (klass->parent, NULL);
11512 /* Add parent size to real size */
11513 native_size += parent_size;
11514 info->native_size = parent_size;
11517 packing = klass->packing_size ? klass->packing_size : 8;
11520 while ((field = mono_class_get_fields (klass, &iter))) {
11524 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11527 if (mono_field_is_deleted (field))
11529 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11530 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11531 NULL, NULL, &info->fields [j].mspec);
11533 info->fields [j].field = field;
11535 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11536 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11537 /* This field is a hack inserted by MCS to empty structures */
11542 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11543 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11544 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11545 &align, TRUE, klass->unicode);
11546 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11547 min_align = MAX (align, min_align);
11548 info->fields [j].offset = info->native_size;
11549 info->fields [j].offset += align - 1;
11550 info->fields [j].offset &= ~(align - 1);
11551 info->native_size = info->fields [j].offset + size;
11553 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11554 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11555 &align, TRUE, klass->unicode);
11556 min_align = MAX (align, min_align);
11557 info->fields [j].offset = field->offset - sizeof (MonoObject);
11558 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11564 if (klass->byval_arg.type == MONO_TYPE_PTR)
11565 info->native_size = sizeof (gpointer);
11567 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11568 info->native_size = MAX (native_size, info->native_size);
11570 * If the provided Size is equal or larger than the calculated size, and there
11571 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11573 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11574 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11577 min_align = MIN (min_align, packing);
11581 if (info->native_size & (min_align - 1)) {
11582 info->native_size += min_align - 1;
11583 info->native_size &= ~(min_align - 1);
11586 info->min_align = min_align;
11588 /* Update the class's blittable info, if the layouts don't match */
11589 if (info->native_size != mono_class_value_size (klass, NULL))
11590 klass->blittable = FALSE;
11592 /* If this is an array type, ensure that we have element info */
11593 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11594 mono_marshal_load_type_info (klass->element_class);
11597 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11598 loads_list = g_slist_remove (loads_list, klass);
11599 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11601 mono_marshal_lock ();
11602 MonoMarshalType *info2 = mono_class_get_marshal_info (klass);
11604 /*We do double-checking locking on marshal_info */
11605 mono_memory_barrier ();
11606 mono_class_set_marshal_info (klass, info);
11607 ++class_marshal_info_count;
11610 mono_marshal_unlock ();
11616 * mono_class_native_size:
11617 * \param klass a class
11618 * \returns the native size of an object instance (when marshaled
11619 * to unmanaged code)
11622 mono_class_native_size (MonoClass *klass, guint32 *align)
11624 MonoMarshalType *info = mono_class_get_marshal_info (klass);
11626 if (mono_marshal_is_loading_type_info (klass)) {
11631 mono_marshal_load_type_info (klass);
11633 info = mono_class_get_marshal_info (klass);
11637 *align = info->min_align;
11639 return info->native_size;
11643 * mono_type_native_stack_size:
11644 * @t: the type to return the size it uses on the stack
11646 * Returns: the number of bytes required to hold an instance of this
11647 * type on the native stack
11650 mono_type_native_stack_size (MonoType *t, guint32 *align)
11654 g_assert (t != NULL);
11660 *align = sizeof (gpointer);
11661 return sizeof (gpointer);
11665 case MONO_TYPE_BOOLEAN:
11666 case MONO_TYPE_CHAR:
11677 case MONO_TYPE_STRING:
11678 case MONO_TYPE_OBJECT:
11679 case MONO_TYPE_CLASS:
11680 case MONO_TYPE_SZARRAY:
11681 case MONO_TYPE_PTR:
11682 case MONO_TYPE_FNPTR:
11683 case MONO_TYPE_ARRAY:
11684 *align = sizeof (gpointer);
11685 return sizeof (gpointer);
11690 *align = MONO_ABI_ALIGNOF (double);
11694 *align = MONO_ABI_ALIGNOF (gint64);
11696 case MONO_TYPE_GENERICINST:
11697 if (!mono_type_generic_inst_is_valuetype (t)) {
11698 *align = sizeof (gpointer);
11699 return sizeof (gpointer);
11702 case MONO_TYPE_TYPEDBYREF:
11703 case MONO_TYPE_VALUETYPE: {
11705 MonoClass *klass = mono_class_from_mono_type (t);
11707 if (klass->enumtype)
11708 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11710 size = mono_class_native_size (klass, align);
11711 *align = *align + 3;
11721 g_error ("type 0x%02x unknown", t->type);
11727 * mono_marshal_type_size:
11730 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11731 gboolean as_field, gboolean unicode)
11733 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11736 switch (native_type) {
11737 case MONO_NATIVE_BOOLEAN:
11740 case MONO_NATIVE_I1:
11741 case MONO_NATIVE_U1:
11744 case MONO_NATIVE_I2:
11745 case MONO_NATIVE_U2:
11746 case MONO_NATIVE_VARIANTBOOL:
11749 case MONO_NATIVE_I4:
11750 case MONO_NATIVE_U4:
11751 case MONO_NATIVE_ERROR:
11754 case MONO_NATIVE_I8:
11755 case MONO_NATIVE_U8:
11756 *align = MONO_ABI_ALIGNOF (gint64);
11758 case MONO_NATIVE_R4:
11761 case MONO_NATIVE_R8:
11762 *align = MONO_ABI_ALIGNOF (double);
11764 case MONO_NATIVE_INT:
11765 case MONO_NATIVE_UINT:
11766 case MONO_NATIVE_LPSTR:
11767 case MONO_NATIVE_LPWSTR:
11768 case MONO_NATIVE_LPTSTR:
11769 case MONO_NATIVE_BSTR:
11770 case MONO_NATIVE_ANSIBSTR:
11771 case MONO_NATIVE_TBSTR:
11772 case MONO_NATIVE_UTF8STR:
11773 case MONO_NATIVE_LPARRAY:
11774 case MONO_NATIVE_SAFEARRAY:
11775 case MONO_NATIVE_IUNKNOWN:
11776 case MONO_NATIVE_IDISPATCH:
11777 case MONO_NATIVE_INTERFACE:
11778 case MONO_NATIVE_ASANY:
11779 case MONO_NATIVE_FUNC:
11780 case MONO_NATIVE_LPSTRUCT:
11781 *align = MONO_ABI_ALIGNOF (gpointer);
11782 return sizeof (gpointer);
11783 case MONO_NATIVE_STRUCT:
11784 klass = mono_class_from_mono_type (type);
11785 if (klass == mono_defaults.object_class &&
11786 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11790 return mono_class_native_size (klass, align);
11791 case MONO_NATIVE_BYVALTSTR: {
11792 int esize = unicode ? 2: 1;
11795 return mspec->data.array_data.num_elem * esize;
11797 case MONO_NATIVE_BYVALARRAY: {
11798 // FIXME: Have to consider ArraySubType
11800 klass = mono_class_from_mono_type (type);
11801 if (klass->element_class == mono_defaults.char_class) {
11802 esize = unicode ? 2 : 1;
11805 esize = mono_class_native_size (klass->element_class, align);
11808 return mspec->data.array_data.num_elem * esize;
11810 case MONO_NATIVE_CUSTOM:
11811 *align = sizeof (gpointer);
11812 return sizeof (gpointer);
11814 case MONO_NATIVE_CURRENCY:
11815 case MONO_NATIVE_VBBYREFSTR:
11817 g_error ("native type %02x not implemented", native_type);
11820 g_assert_not_reached ();
11825 * mono_marshal_asany:
11826 * This is a JIT icall, it sets the pending exception and returns NULL on error.
11829 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11838 t = &o->vtable->klass->byval_arg;
11842 case MONO_TYPE_PTR:
11845 case MONO_TYPE_BOOLEAN:
11848 case MONO_TYPE_CHAR:
11853 return mono_object_unbox (o);
11855 case MONO_TYPE_STRING:
11856 switch (string_encoding) {
11857 case MONO_NATIVE_LPWSTR:
11858 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11859 case MONO_NATIVE_LPSTR:
11860 case MONO_NATIVE_UTF8STR:
11861 // Same code path, because in Mono, we treated strings as Utf8
11862 return mono_string_to_utf8str ((MonoString*)o);
11864 g_warning ("marshaling conversion %d not implemented", string_encoding);
11865 g_assert_not_reached ();
11868 case MONO_TYPE_CLASS:
11869 case MONO_TYPE_VALUETYPE: {
11870 MonoMethod *method;
11873 MonoBoolean delete_old = FALSE;
11875 klass = t->data.klass;
11877 if (mono_class_is_auto_layout (klass))
11880 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11881 return mono_object_unbox (o);
11883 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11884 if (!mono_error_ok (&error)) {
11885 mono_error_set_pending_exception (&error);
11889 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11890 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11894 pa [2] = &delete_old;
11896 mono_runtime_invoke_checked (method, NULL, pa, &error);
11897 if (!mono_error_ok (&error)) {
11898 mono_error_set_pending_exception (&error);
11908 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11913 * mono_marshal_free_asany:
11914 * This is a JIT icall, it sets the pending exception
11917 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11926 t = &o->vtable->klass->byval_arg;
11928 case MONO_TYPE_STRING:
11929 switch (string_encoding) {
11930 case MONO_NATIVE_LPWSTR:
11931 case MONO_NATIVE_LPSTR:
11932 case MONO_NATIVE_UTF8STR:
11933 mono_marshal_free (ptr);
11936 g_warning ("marshaling conversion %d not implemented", string_encoding);
11937 g_assert_not_reached ();
11940 case MONO_TYPE_CLASS:
11941 case MONO_TYPE_VALUETYPE: {
11942 klass = t->data.klass;
11944 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11947 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11948 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11954 mono_runtime_invoke_checked (method, NULL, pa, &error);
11955 if (!mono_error_ok (&error)) {
11956 mono_error_set_pending_exception (&error);
11961 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11962 mono_struct_delete_old (klass, (char *)ptr);
11965 mono_marshal_free (ptr);
11974 * mono_marshal_get_generic_array_helper:
11976 * Return a wrapper which is used to implement the implicit interfaces on arrays.
11977 * The wrapper routes calls to METHOD, which is one of the InternalArray_ methods in Array.
11980 mono_marshal_get_generic_array_helper (MonoClass *klass, gchar *name, MonoMethod *method)
11982 MonoMethodSignature *sig, *csig;
11983 MonoMethodBuilder *mb;
11988 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11989 mb->method->slot = -1;
11991 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11992 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11994 sig = mono_method_signature (method);
11995 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11996 csig->generic_param_count = 0;
11998 #ifndef DISABLE_JIT
11999 mono_mb_emit_ldarg (mb, 0);
12000 for (i = 0; i < csig->param_count; i++)
12001 mono_mb_emit_ldarg (mb, i + 1);
12002 mono_mb_emit_managed_call (mb, method, NULL);
12003 mono_mb_emit_byte (mb, CEE_RET);
12005 /* We can corlib internal methods */
12006 mb->skip_visibility = TRUE;
12008 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
12009 info->d.generic_array_helper.method = method;
12010 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
12018 * The mono_win32_compat_* functions are implementations of inline
12019 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
12020 * although not exported by kernel32.
12022 * We map the appropiate kernel32 entries to these functions using
12023 * dllmaps declared in the global etc/mono/config.
12027 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
12029 if (!dest || !source)
12032 memcpy (dest, source, length);
12036 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
12038 memset (dest, fill, length);
12042 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
12044 if (!dest || !source)
12047 memmove (dest, source, length);
12051 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
12053 memset (dest, 0, length);
12057 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12062 for (i = 0; i < len; ++i)
12066 g_assert (i < len);
12069 while (byte && !(byte & 1))
12071 g_assert (byte == 1);
12074 *bitmask = buf [i];
12078 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12080 MonoMethodBuilder *mb;
12081 MonoMethodSignature *sig, *csig;
12082 MonoExceptionClause *clause;
12087 int i, param_count, sig_size, pos_leave;
12091 // FIXME: we need to store the exception into a MonoHandle
12092 g_assert (!mono_threads_is_coop_enabled ());
12094 klass = method->klass;
12095 image = method->klass->image;
12097 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12099 if ((res = mono_marshal_find_in_cache (cache, method)))
12102 sig = mono_method_signature (method);
12103 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12105 /* add "this" and exception param */
12106 param_count = sig->param_count + sig->hasthis + 1;
12108 /* dup & extend signature */
12109 csig = mono_metadata_signature_alloc (image, param_count);
12110 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
12111 memcpy (csig, sig, sig_size);
12112 csig->param_count = param_count;
12115 csig->call_convention = MONO_CALL_DEFAULT;
12117 if (sig->hasthis) {
12119 csig->params [0] = &klass->byval_arg;
12120 /* move params up by one */
12121 for (i = 0; i < sig->param_count; i++)
12122 csig->params [i + 1] = sig->params [i];
12125 /* setup exception param as byref+[out] */
12126 csig->params [param_count - 1] = mono_metadata_type_dup (image,
12127 &mono_defaults.exception_class->byval_arg);
12128 csig->params [param_count - 1]->byref = 1;
12129 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12131 /* convert struct return to object */
12132 if (MONO_TYPE_ISSTRUCT (sig->ret))
12133 csig->ret = &mono_defaults.object_class->byval_arg;
12135 #ifndef DISABLE_JIT
12136 /* local 0 (temp for exception object) */
12137 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12139 /* local 1 (temp for result) */
12140 if (!MONO_TYPE_IS_VOID (sig->ret))
12141 mono_mb_add_local (mb, sig->ret);
12143 /* clear exception arg */
12144 mono_mb_emit_ldarg (mb, param_count - 1);
12145 mono_mb_emit_byte (mb, CEE_LDNULL);
12146 mono_mb_emit_byte (mb, CEE_STIND_REF);
12149 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12150 clause->try_offset = mono_mb_get_label (mb);
12152 /* push method's args */
12153 for (i = 0; i < param_count - 1; i++) {
12157 mono_mb_emit_ldarg (mb, i);
12159 /* get the byval type of the param */
12160 klass = mono_class_from_mono_type (csig->params [i]);
12161 type = &klass->byval_arg;
12163 /* unbox struct args */
12164 if (MONO_TYPE_ISSTRUCT (type)) {
12165 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12167 /* byref args & and the "this" arg must remain a ptr.
12168 Otherwise make a copy of the value type */
12169 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12170 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12172 csig->params [i] = &mono_defaults.object_class->byval_arg;
12177 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12178 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12180 mono_mb_emit_op (mb, CEE_CALL, method);
12182 /* save result at local 1 */
12183 if (!MONO_TYPE_IS_VOID (sig->ret))
12184 mono_mb_emit_stloc (mb, 1);
12186 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12189 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12190 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12191 clause->data.catch_class = mono_defaults.object_class;
12193 clause->handler_offset = mono_mb_get_label (mb);
12195 /* store exception at local 0 */
12196 mono_mb_emit_stloc (mb, 0);
12197 mono_mb_emit_ldarg (mb, param_count - 1);
12198 mono_mb_emit_ldloc (mb, 0);
12199 mono_mb_emit_byte (mb, CEE_STIND_REF);
12200 mono_mb_emit_branch (mb, CEE_LEAVE);
12202 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12204 mono_mb_set_clauses (mb, 1, clause);
12206 mono_mb_patch_branch (mb, pos_leave);
12209 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12210 mono_mb_emit_ldloc (mb, 1);
12212 /* box the return value */
12213 if (MONO_TYPE_ISSTRUCT (sig->ret))
12214 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12217 mono_mb_emit_byte (mb, CEE_RET);
12220 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12227 * mono_marshal_free_dynamic_wrappers:
12229 * Free wrappers of the dynamic method METHOD.
12232 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12234 MonoImage *image = method->klass->image;
12236 g_assert (method_is_dynamic (method));
12238 /* This could be called during shutdown */
12239 if (marshal_mutex_initialized)
12240 mono_marshal_lock ();
12242 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12243 * they could be shared with other methods ?
12245 if (image->wrapper_caches.runtime_invoke_direct_cache)
12246 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
12247 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12248 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12249 // FIXME: Need to clear the caches in other images as well
12250 if (image->delegate_bound_static_invoke_cache)
12251 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12253 if (marshal_mutex_initialized)
12254 mono_marshal_unlock ();
12258 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12260 g_assert (ftnptr_eh_callback);
12261 ftnptr_eh_callback (gchandle);
12265 ftnptr_eh_callback_default (guint32 gchandle)
12267 MonoException *exc;
12268 gpointer stackdata;
12270 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12272 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12274 mono_gchandle_free (gchandle);
12276 mono_raise_exception (exc);
12280 * mono_install_ftnptr_eh_callback:
12282 * Install a callback that should be called when there is a managed exception
12283 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12284 * managed exception to a native exception, to properly unwind the native
12285 * stack; this native exception will then be converted back to a managed
12286 * exception in their managed-to-native wrapper.
12289 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12291 ftnptr_eh_callback = callback;
12294 static MonoThreadInfo*
12295 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12297 MonoThreadInfo *info = mono_thread_info_current ();
12299 mono_stack_mark_init (info, stackmark);
12300 error_init (error);
12305 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12307 mono_stack_mark_pop (info, stackmark);
12308 if (G_UNLIKELY (!is_ok (error)))
12309 mono_error_set_pending_exception (error);