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_ftnptr_to_delegate_handle (MonoClass *klass, gpointer ftn, MonoError *error);
189 mono_array_to_savearray (MonoArray *array);
192 mono_array_to_lparray (MonoArray *array);
195 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
198 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
201 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
204 mono_array_to_savearray (MonoArray *array);
207 mono_array_to_lparray (MonoArray *array);
210 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
213 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
215 static MonoThreadInfo*
216 mono_icall_start (HandleStackMark *stackmark, MonoError *error);
219 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error);
221 static MonoObjectHandle
222 mono_icall_handle_new_full (gpointer rawobj, MonoBoolean interior);
224 /* Lazy class loading functions */
225 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, "System.Text", "StringBuilder");
226 static GENERATE_GET_CLASS_WITH_CACHE (date_time, "System", "DateTime");
227 static GENERATE_GET_CLASS_WITH_CACHE (fixed_buffer_attribute, "System.Runtime.CompilerServices", "FixedBufferAttribute");
228 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
229 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, "System.Runtime.InteropServices", "ICustomMarshaler");
231 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
232 static MonoMethod *sh_dangerous_add_ref;
233 static MonoMethod *sh_dangerous_release;
238 sh_dangerous_add_ref = mono_class_get_method_from_name (
239 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
240 sh_dangerous_release = mono_class_get_method_from_name (
241 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
245 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
247 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
249 mono_register_jit_icall (func, name, sig, no_wrapper);
253 register_icall_no_wrapper (gpointer func, const char *name, const char *sigstr)
255 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
257 mono_register_jit_icall (func, name, sig, TRUE);
261 mono_signature_no_pinvoke (MonoMethod *method)
263 MonoMethodSignature *sig = mono_method_signature (method);
265 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
266 sig->pinvoke = FALSE;
273 mono_marshal_init_tls (void)
275 mono_native_tls_alloc (&last_error_tls_id, NULL);
276 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
280 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
285 /* This is called from stelemref so it is expected to succeed */
287 if (mono_class_is_interface (klass)) {
288 MonoVTable *vt = obj->vtable;
291 mono_class_init (klass);
293 if (MONO_VTABLE_IMPLEMENTS_INTERFACE (vt, klass->interface_id))
298 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
299 mono_error_set_pending_exception (&error);
304 ves_icall_mono_string_from_utf16 (gunichar2 *data)
307 MonoString *result = mono_string_from_utf16_checked (data, &error);
308 mono_error_set_pending_exception (&error);
313 ves_icall_mono_string_to_utf8 (MonoString *str)
316 char *result = mono_string_to_utf8_checked (str, &error);
317 mono_error_set_pending_exception (&error);
322 ves_icall_string_new_wrapper (const char *text)
326 MonoString *res = mono_string_new_checked (mono_domain_get (), text, &error);
327 mono_error_set_pending_exception (&error);
335 mono_marshal_init (void)
337 static gboolean module_initialized = FALSE;
339 if (!module_initialized) {
340 module_initialized = TRUE;
341 mono_os_mutex_init_recursive (&marshal_mutex);
342 marshal_mutex_initialized = TRUE;
344 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
345 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
346 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
347 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
348 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
349 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
350 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
351 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
352 register_icall (ves_icall_string_new_wrapper, "ves_icall_string_new_wrapper", "obj ptr", FALSE);
353 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
354 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
355 register_icall (mono_string_to_utf8str, "mono_string_to_utf8str", "ptr obj", FALSE);
356 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
357 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
358 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
359 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
360 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
361 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
362 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
363 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
364 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
365 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
366 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
367 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
368 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
369 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
370 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr ptr", FALSE);
371 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
372 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
373 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
374 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
375 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
376 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
377 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
378 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
379 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
380 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
381 register_icall (g_free, "g_free", "void ptr", FALSE);
382 register_icall_no_wrapper (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr");
383 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
384 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
385 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
386 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
387 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
388 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
389 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
390 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
391 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
392 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
393 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
394 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
395 register_icall (mono_icall_start, "mono_icall_start", "ptr ptr ptr", TRUE);
396 register_icall (mono_icall_end, "mono_icall_end", "void ptr ptr ptr", TRUE);
397 register_icall (mono_icall_handle_new_full, "mono_icall_handle_new_full", "ptr ptr bool", TRUE);
399 mono_cominterop_init ();
400 mono_remoting_init ();
402 mono_counters_register ("MonoClass::class_marshal_info_count count",
403 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_marshal_info_count);
409 mono_marshal_cleanup (void)
411 mono_cominterop_cleanup ();
413 mono_native_tls_free (load_type_info_tls_id);
414 mono_native_tls_free (last_error_tls_id);
415 mono_os_mutex_destroy (&marshal_mutex);
416 marshal_mutex_initialized = FALSE;
420 mono_marshal_lock_internal (void)
422 mono_marshal_lock ();
426 mono_marshal_unlock_internal (void)
428 mono_marshal_unlock ();
431 /* This is a JIT icall, it sets the pending exception and return NULL on error */
433 mono_delegate_to_ftnptr (MonoDelegate *delegate)
436 MonoMethod *method, *wrapper;
438 uint32_t target_handle = 0;
443 if (delegate->delegate_trampoline)
444 return delegate->delegate_trampoline;
446 klass = ((MonoObject *)delegate)->vtable->klass;
447 g_assert (klass->delegate);
449 method = delegate->method;
450 if (delegate->method_is_virtual)
451 method = mono_object_get_virtual_method (delegate->target, method);
453 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
454 const char *exc_class, *exc_arg;
457 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
459 g_assert (exc_class);
460 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
466 if (delegate->target) {
467 /* Produce a location which can be embedded in JITted code */
468 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
471 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle, &error);
475 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
479 // Add the delegate to the delegate hash table
480 delegate_hash_table_add (delegate);
482 /* when the object is collected, collect the dynamic method, too */
483 mono_object_register_finalizer ((MonoObject*)delegate);
485 return delegate->delegate_trampoline;
488 if (target_handle != 0)
489 mono_gchandle_free (target_handle);
490 mono_error_set_pending_exception (&error);
495 * this hash table maps from a delegate trampoline object to a weak reference
496 * of the delegate. As an optimizations with a non-moving GC we store the
497 * object pointer itself, otherwise we use a GC handle.
499 static GHashTable *delegate_hash_table;
502 delegate_hash_table_new (void) {
503 return g_hash_table_new (NULL, NULL);
507 delegate_hash_table_remove (MonoDelegate *d)
509 guint32 gchandle = 0;
511 mono_marshal_lock ();
512 if (delegate_hash_table == NULL)
513 delegate_hash_table = delegate_hash_table_new ();
514 if (mono_gc_is_moving ())
515 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
516 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
517 mono_marshal_unlock ();
518 if (gchandle && mono_gc_is_moving ())
519 mono_gchandle_free (gchandle);
523 delegate_hash_table_add (MonoDelegate *d)
526 guint32 old_gchandle;
528 mono_marshal_lock ();
529 if (delegate_hash_table == NULL)
530 delegate_hash_table = delegate_hash_table_new ();
531 if (mono_gc_is_moving ()) {
532 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
533 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
534 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
536 mono_gchandle_free (old_gchandle);
538 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
540 mono_marshal_unlock ();
544 * mono_marshal_use_aot_wrappers:
546 * Instructs this module to use AOT compatible wrappers.
549 mono_marshal_use_aot_wrappers (gboolean use)
551 use_aot_wrappers = use;
555 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
558 MonoCustomAttrInfo *cinfo;
559 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
561 /* The attribute is only available in Net 2.0 */
562 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
564 * The pinvoke attributes are stored in a real custom attribute so we have to
567 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
568 if (!mono_error_ok (&error)) {
569 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
570 mono_error_cleanup (&error);
572 if (cinfo && !mono_runtime_get_no_exec ()) {
573 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
575 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
577 if (!mono_error_ok (&error)) {
578 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
579 mono_error_cleanup (&error);
583 mono_custom_attrs_free (cinfo);
588 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
590 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
592 HANDLE_FUNCTION_ENTER ();
594 MonoDelegateHandle result = mono_ftnptr_to_delegate_handle (klass, ftn, &error);
595 mono_error_set_pending_exception (&error);
596 HANDLE_FUNCTION_RETURN_OBJ (result);
600 mono_ftnptr_to_delegate_handle (MonoClass *klass, gpointer ftn, MonoError *error)
602 HANDLE_FUNCTION_ENTER ();
605 MonoDelegateHandle d = MONO_HANDLE_NEW (MonoDelegate, NULL);
610 mono_marshal_lock ();
611 if (delegate_hash_table == NULL)
612 delegate_hash_table = delegate_hash_table_new ();
614 if (mono_gc_is_moving ()) {
615 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
616 mono_marshal_unlock ();
618 MONO_HANDLE_ASSIGN (d, MONO_HANDLE_CAST (MonoDelegate, mono_gchandle_get_target_handle (gchandle)));
620 MONO_HANDLE_ASSIGN (d, MONO_HANDLE_NEW (MonoDelegate, g_hash_table_lookup (delegate_hash_table, ftn)));
621 mono_marshal_unlock ();
623 if (MONO_HANDLE_IS_NULL (d)) {
624 /* This is a native function, so construct a delegate for it */
625 MonoMethodSignature *sig;
627 MonoMarshalSpec **mspecs;
628 MonoMethod *invoke = mono_get_delegate_invoke (klass);
629 MonoMethodPInvoke piinfo;
630 MonoObjectHandle this_obj;
633 if (use_aot_wrappers) {
634 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
635 this_obj = MONO_HANDLE_NEW (MonoObject, mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, error));
639 memset (&piinfo, 0, sizeof (piinfo));
640 parse_unmanaged_function_pointer_attr (klass, &piinfo);
642 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
643 mono_method_get_marshal_info (invoke, mspecs);
644 /* Freed below so don't alloc from mempool */
645 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
648 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
649 this_obj = MONO_HANDLE_NEW (MonoObject, NULL);
651 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
653 mono_metadata_free_marshal_spec (mspecs [i]);
658 MONO_HANDLE_ASSIGN (d, MONO_HANDLE_NEW (MonoDelegate, mono_object_new_checked (mono_domain_get (), klass, error)));
661 gpointer compiled_ptr = mono_compile_method_checked (wrapper, error);
665 mono_delegate_ctor_with_method (MONO_HANDLE_CAST (MonoObject, d), this_obj, compiled_ptr, wrapper, error);
670 g_assert (!MONO_HANDLE_IS_NULL (d));
671 if (MONO_HANDLE_DOMAIN (d) != mono_domain_get ())
672 mono_error_set_not_supported (error, "Delegates cannot be marshalled from native code into a domain other than their home domain");
675 HANDLE_FUNCTION_RETURN_REF (MonoDelegate, d);
679 mono_delegate_free_ftnptr (MonoDelegate *delegate)
684 delegate_hash_table_remove (delegate);
686 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
688 if (!delegate->target) {
689 /* The wrapper method is shared between delegates -> no need to free it */
698 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
701 method = mono_jit_info_get_method (ji);
702 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
704 /*the target gchandle is the first entry after size and the wrapper itself.*/
705 gchandle = GPOINTER_TO_UINT (method_data [2]);
708 mono_gchandle_free (gchandle);
710 mono_runtime_free_method (mono_object_domain (delegate), method);
714 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
716 mono_string_from_byvalstr (const char *data, int max_len)
719 MonoDomain *domain = mono_domain_get ();
725 while (len < max_len - 1 && data [len])
728 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
729 mono_error_set_pending_exception (&error);
733 /* This is a JIT icall, it sets the pending exception and return NULL on error */
735 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
738 MonoString *res = NULL;
739 MonoDomain *domain = mono_domain_get ();
745 while (data [len]) len++;
747 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
748 if (!mono_error_ok (&error)) {
749 mono_error_set_pending_exception (&error);
756 mono_array_to_savearray (MonoArray *array)
761 g_assert_not_reached ();
766 mono_array_to_lparray (MonoArray *array)
769 gpointer *nativeArray = NULL;
770 int nativeArraySize = 0;
780 klass = array->obj.vtable->klass;
782 switch (klass->element_class->byval_arg.type) {
784 g_assert_not_reached ();
786 case MONO_TYPE_CLASS:
787 nativeArraySize = array->max_length;
788 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
789 for(i = 0; i < nativeArraySize; ++i)
790 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
793 case MONO_TYPE_BOOLEAN:
806 case MONO_TYPE_VALUETYPE:
810 case MONO_TYPE_GENERICINST:
811 case MONO_TYPE_OBJECT:
812 case MONO_TYPE_ARRAY:
813 case MONO_TYPE_SZARRAY:
814 case MONO_TYPE_STRING:
816 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
817 g_assert_not_reached ();
820 return array->vector;
824 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
835 klass = array->obj.vtable->klass;
837 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
838 for(i = 0; i < array->max_length; ++i)
839 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
840 g_free (nativeArray);
846 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
848 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
850 if (elclass == mono_defaults.byte_class) {
851 GError *error = NULL;
855 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
858 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
862 g_error_free (error);
865 g_assert_not_reached ();
869 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
871 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
874 /* This is a JIT icall, it sets the pending exception and returns on error */
876 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
878 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
880 if (elclass == mono_defaults.byte_class) {
882 GError *error = NULL;
884 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
886 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
887 g_error_free (error);
891 memcpy (native_arr, as, MIN (strlen (as), elnum));
894 g_assert_not_reached ();
899 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
901 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
904 static MonoStringBuilder *
905 mono_string_builder_new (int starting_string_length)
907 static MonoClass *string_builder_class;
908 static MonoMethod *sb_ctor;
909 static void *args [1];
912 int initial_len = starting_string_length;
918 MonoMethodDesc *desc;
921 string_builder_class = mono_class_get_string_builder_class ();
922 g_assert (string_builder_class);
923 desc = mono_method_desc_new (":.ctor(int)", FALSE);
924 m = mono_method_desc_search_in_class (desc, string_builder_class);
926 mono_method_desc_free (desc);
927 mono_memory_barrier ();
931 // We make a new array in the _to_builder function, so this
932 // array will always be garbage collected.
933 args [0] = &initial_len;
935 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
936 mono_error_assert_ok (&error);
939 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
940 g_assert (exc == NULL);
941 mono_error_assert_ok (&error);
943 g_assert (sb->chunkChars->max_length >= initial_len);
949 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
951 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
952 gunichar2 *charSrc = (gunichar2 *)text;
953 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
955 sb->chunkLength = string_len;
961 mono_string_utf16_to_builder2 (gunichar2 *text)
967 for (len = 0; text [len] != 0; ++len);
969 MonoStringBuilder *sb = mono_string_builder_new (len);
970 mono_string_utf16_to_builder (sb, text);
976 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
981 GError *error = NULL;
983 gunichar2* ut = g_utf8_to_utf16 (text, strlen (text), NULL, &copied, &error);
984 int capacity = mono_string_builder_capacity (sb);
986 if (copied > capacity)
990 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
991 mono_string_utf16_to_builder_copy (sb, ut, copied);
993 g_error_free (error);
999 mono_string_utf8_to_builder2 (char *text)
1004 int len = strlen (text);
1005 MonoStringBuilder *sb = mono_string_builder_new (len);
1006 mono_string_utf8_to_builder (sb, text);
1012 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
1018 for (len = 0; text [len] != 0; ++len);
1020 if (len > mono_string_builder_capacity (sb))
1021 len = mono_string_builder_capacity (sb);
1023 mono_string_utf16_to_builder_copy (sb, text, len);
1027 * mono_string_builder_to_utf8:
1028 * \param sb the string builder
1030 * Converts to utf8 the contents of the \c MonoStringBuilder .
1032 * \returns a utf8 string with the contents of the \c StringBuilder .
1034 * The return value must be released with mono_marshal_free.
1036 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1039 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
1042 GError *gerror = NULL;
1047 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
1049 guint str_len = mono_string_builder_string_length (sb);
1051 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
1054 g_error_free (gerror);
1055 mono_marshal_free (str_utf16);
1056 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1059 guint len = mono_string_builder_capacity (sb) + 1;
1060 gchar *res = (gchar *)mono_marshal_alloc (MAX (byte_count+1, len * sizeof (gchar)), &error);
1061 if (!mono_error_ok (&error)) {
1062 mono_marshal_free (str_utf16);
1064 mono_error_set_pending_exception (&error);
1068 memcpy (res, tmp, byte_count);
1069 res[byte_count] = '\0';
1071 mono_marshal_free (str_utf16);
1078 * mono_string_builder_to_utf16:
1079 * \param sb the string builder
1081 * Converts to utf16 the contents of the \c MonoStringBuilder .
1083 * Returns: a utf16 string with the contents of the \c StringBuilder .
1085 * The return value must be released with mono_marshal_free.
1087 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1090 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1097 g_assert (sb->chunkChars);
1099 guint len = mono_string_builder_capacity (sb);
1104 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1105 if (!mono_error_ok (&error)) {
1106 mono_error_set_pending_exception (&error);
1115 MonoStringBuilder* chunk = sb;
1117 if (chunk->chunkLength > 0) {
1118 // Check that we will not overrun our boundaries.
1119 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1121 if (chunk->chunkLength <= len) {
1122 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1124 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1127 len -= chunk->chunkLength;
1129 chunk = chunk->chunkPrevious;
1130 } while (chunk != NULL);
1136 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1138 mono_string_to_utf8str (MonoString *s)
1141 char *result = mono_string_to_utf8_checked (s, &error);
1142 mono_error_set_pending_exception (&error);
1148 mono_string_to_ansibstr (MonoString *string_obj)
1150 g_error ("UnmanagedMarshal.BStr is not implemented.");
1155 * mono_string_to_byvalstr:
1156 * \param dst Where to store the null-terminated utf8 decoded string.
1157 * \param src the \c MonoString to copy.
1158 * \param size the maximum number of bytes to copy.
1160 * Copies the \c MonoString pointed to by \p src as a utf8 string
1161 * into \p dst, it copies at most \p size bytes into the destination.
1164 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1170 g_assert (dst != NULL);
1171 g_assert (size > 0);
1173 memset (dst, 0, size);
1177 s = mono_string_to_utf8_checked (src, &error);
1178 if (mono_error_set_pending_exception (&error))
1180 len = MIN (size, strlen (s));
1183 memcpy (dst, s, len);
1188 * mono_string_to_byvalwstr:
1189 * \param dst Where to store the null-terminated utf16 decoded string.
1190 * \param src the \c MonoString to copy.
1191 * \param size the maximum number of wide characters to copy (each consumes 2 bytes)
1193 * Copies the \c MonoString pointed to by \p src as a utf16 string into
1194 * \p dst, it copies at most \p size bytes into the destination (including
1195 * a terminating 16-bit zero terminator).
1198 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1202 g_assert (dst != NULL);
1203 g_assert (size > 1);
1206 memset (dst, 0, size * 2);
1210 len = MIN (size, (mono_string_length (src)));
1211 memcpy (dst, mono_string_chars (src), len * 2);
1212 if (size <= mono_string_length (src))
1214 *((gunichar2 *) dst + len) = 0;
1217 /* this is an icall, it sets the pending exception and returns NULL on error */
1219 mono_string_new_len_wrapper (const char *text, guint length)
1222 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1223 mono_error_set_pending_exception (&error);
1230 * mono_mb_emit_exception_marshal_directive:
1232 * This function assumes ownership of MSG, which should be malloc-ed.
1235 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1240 s = mono_image_strdup (mb->method->klass->image, msg);
1245 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1248 #endif /* !DISABLE_JIT */
1251 mono_type_to_ldind (MonoType *type)
1257 switch (type->type) {
1259 return CEE_LDIND_I1;
1261 case MONO_TYPE_BOOLEAN:
1262 return CEE_LDIND_U1;
1264 return CEE_LDIND_I2;
1266 case MONO_TYPE_CHAR:
1267 return CEE_LDIND_U2;
1269 return CEE_LDIND_I4;
1271 return CEE_LDIND_U4;
1275 case MONO_TYPE_FNPTR:
1277 case MONO_TYPE_CLASS:
1278 case MONO_TYPE_STRING:
1279 case MONO_TYPE_OBJECT:
1280 case MONO_TYPE_SZARRAY:
1281 case MONO_TYPE_ARRAY:
1282 return CEE_LDIND_REF;
1285 return CEE_LDIND_I8;
1287 return CEE_LDIND_R4;
1289 return CEE_LDIND_R8;
1290 case MONO_TYPE_VALUETYPE:
1291 if (type->data.klass->enumtype) {
1292 type = mono_class_enum_basetype (type->data.klass);
1296 case MONO_TYPE_TYPEDBYREF:
1298 case MONO_TYPE_GENERICINST:
1299 type = &type->data.generic_class->container_class->byval_arg;
1302 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1308 mono_type_to_stind (MonoType *type)
1311 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1315 switch (type->type) {
1318 case MONO_TYPE_BOOLEAN:
1319 return CEE_STIND_I1;
1322 case MONO_TYPE_CHAR:
1323 return CEE_STIND_I2;
1326 return CEE_STIND_I4;
1330 case MONO_TYPE_FNPTR:
1332 case MONO_TYPE_CLASS:
1333 case MONO_TYPE_STRING:
1334 case MONO_TYPE_OBJECT:
1335 case MONO_TYPE_SZARRAY:
1336 case MONO_TYPE_ARRAY:
1337 return CEE_STIND_REF;
1340 return CEE_STIND_I8;
1342 return CEE_STIND_R4;
1344 return CEE_STIND_R8;
1345 case MONO_TYPE_VALUETYPE:
1346 if (type->data.klass->enumtype) {
1347 type = mono_class_enum_basetype (type->data.klass);
1351 case MONO_TYPE_TYPEDBYREF:
1353 case MONO_TYPE_GENERICINST:
1354 type = &type->data.generic_class->container_class->byval_arg;
1357 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1365 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1368 case MONO_MARSHAL_CONV_BOOL_I4:
1369 mono_mb_emit_ldloc (mb, 1);
1370 mono_mb_emit_ldloc (mb, 0);
1371 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1372 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1373 mono_mb_emit_byte (mb, 3);
1374 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1375 mono_mb_emit_byte (mb, CEE_BR_S);
1376 mono_mb_emit_byte (mb, 1);
1377 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1378 mono_mb_emit_byte (mb, CEE_STIND_I1);
1380 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1381 mono_mb_emit_ldloc (mb, 1);
1382 mono_mb_emit_ldloc (mb, 0);
1383 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1384 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1385 mono_mb_emit_byte (mb, 3);
1386 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1387 mono_mb_emit_byte (mb, CEE_BR_S);
1388 mono_mb_emit_byte (mb, 1);
1389 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1390 mono_mb_emit_byte (mb, CEE_STIND_I1);
1392 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1393 MonoClass *eklass = NULL;
1396 if (type->type == MONO_TYPE_SZARRAY) {
1397 eklass = type->data.klass;
1399 g_assert_not_reached ();
1402 esize = mono_class_native_size (eklass, NULL);
1404 /* create a new array */
1405 mono_mb_emit_ldloc (mb, 1);
1406 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1407 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1408 mono_mb_emit_byte (mb, CEE_STIND_REF);
1410 if (eklass->blittable) {
1411 /* copy the elements */
1412 mono_mb_emit_ldloc (mb, 1);
1413 mono_mb_emit_byte (mb, CEE_LDIND_I);
1414 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1415 mono_mb_emit_byte (mb, CEE_ADD);
1416 mono_mb_emit_ldloc (mb, 0);
1417 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1418 mono_mb_emit_byte (mb, CEE_PREFIX1);
1419 mono_mb_emit_byte (mb, CEE_CPBLK);
1422 int array_var, src_var, dst_var, index_var;
1423 guint32 label2, label3;
1425 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1426 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1427 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1430 mono_mb_emit_ldloc (mb, 1);
1431 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1432 mono_mb_emit_stloc (mb, array_var);
1434 /* save the old src pointer */
1435 mono_mb_emit_ldloc (mb, 0);
1436 mono_mb_emit_stloc (mb, src_var);
1437 /* save the old dst pointer */
1438 mono_mb_emit_ldloc (mb, 1);
1439 mono_mb_emit_stloc (mb, dst_var);
1441 /* Emit marshalling loop */
1442 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1443 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1444 mono_mb_emit_stloc (mb, index_var);
1447 label2 = mono_mb_get_label (mb);
1448 mono_mb_emit_ldloc (mb, index_var);
1449 mono_mb_emit_ldloc (mb, array_var);
1450 mono_mb_emit_byte (mb, CEE_LDLEN);
1451 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1453 /* src is already set */
1456 mono_mb_emit_ldloc (mb, array_var);
1457 mono_mb_emit_ldloc (mb, index_var);
1458 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1459 mono_mb_emit_stloc (mb, 1);
1461 /* Do the conversion */
1462 emit_struct_conv (mb, eklass, TRUE);
1465 mono_mb_emit_add_to_local (mb, index_var, 1);
1467 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1469 mono_mb_patch_branch (mb, label3);
1471 /* restore the old src pointer */
1472 mono_mb_emit_ldloc (mb, src_var);
1473 mono_mb_emit_stloc (mb, 0);
1474 /* restore the old dst pointer */
1475 mono_mb_emit_ldloc (mb, dst_var);
1476 mono_mb_emit_stloc (mb, 1);
1480 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1481 MonoClass *eclass = mono_defaults.char_class;
1483 /* create a new array */
1484 mono_mb_emit_ldloc (mb, 1);
1485 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1486 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1487 mono_mb_emit_byte (mb, CEE_STIND_REF);
1489 mono_mb_emit_ldloc (mb, 1);
1490 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1491 mono_mb_emit_ldloc (mb, 0);
1492 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1493 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1496 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1497 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1498 mono_mb_emit_ldloc (mb, 1);
1499 mono_mb_emit_ldloc (mb, 0);
1500 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1501 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1503 mono_mb_emit_ldloc (mb, 1);
1504 mono_mb_emit_ldloc (mb, 0);
1505 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1507 mono_mb_emit_byte (mb, CEE_STIND_REF);
1509 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1510 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1511 mono_mb_emit_ldloc (mb, 1);
1512 mono_mb_emit_ldloc (mb, 0);
1513 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1514 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1516 mono_mb_emit_ldloc (mb, 1);
1517 mono_mb_emit_ldloc (mb, 0);
1518 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1520 mono_mb_emit_byte (mb, CEE_STIND_REF);
1522 case MONO_MARSHAL_CONV_STR_LPTSTR:
1523 mono_mb_emit_ldloc (mb, 1);
1524 mono_mb_emit_ldloc (mb, 0);
1525 mono_mb_emit_byte (mb, CEE_LDIND_I);
1527 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1529 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1531 mono_mb_emit_byte (mb, CEE_STIND_REF);
1534 // In Mono historically LPSTR was treated as a UTF8STR
1535 case MONO_MARSHAL_CONV_STR_LPSTR:
1536 case MONO_MARSHAL_CONV_STR_UTF8STR:
1537 mono_mb_emit_ldloc (mb, 1);
1538 mono_mb_emit_ldloc (mb, 0);
1539 mono_mb_emit_byte (mb, CEE_LDIND_I);
1540 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1541 mono_mb_emit_byte (mb, CEE_STIND_REF);
1543 case MONO_MARSHAL_CONV_STR_LPWSTR:
1544 mono_mb_emit_ldloc (mb, 1);
1545 mono_mb_emit_ldloc (mb, 0);
1546 mono_mb_emit_byte (mb, CEE_LDIND_I);
1547 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1548 mono_mb_emit_byte (mb, CEE_STIND_REF);
1550 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1551 MonoClass *klass = mono_class_from_mono_type (type);
1552 int src_var, dst_var;
1554 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1555 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1557 /* *dst = new object */
1558 mono_mb_emit_ldloc (mb, 1);
1559 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1560 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1561 mono_mb_emit_byte (mb, CEE_STIND_REF);
1563 /* save the old src pointer */
1564 mono_mb_emit_ldloc (mb, 0);
1565 mono_mb_emit_stloc (mb, src_var);
1566 /* save the old dst pointer */
1567 mono_mb_emit_ldloc (mb, 1);
1568 mono_mb_emit_stloc (mb, dst_var);
1570 /* dst = pointer to newly created object data */
1571 mono_mb_emit_ldloc (mb, 1);
1572 mono_mb_emit_byte (mb, CEE_LDIND_I);
1573 mono_mb_emit_icon (mb, sizeof (MonoObject));
1574 mono_mb_emit_byte (mb, CEE_ADD);
1575 mono_mb_emit_stloc (mb, 1);
1577 emit_struct_conv (mb, klass, TRUE);
1579 /* restore the old src pointer */
1580 mono_mb_emit_ldloc (mb, src_var);
1581 mono_mb_emit_stloc (mb, 0);
1582 /* restore the old dst pointer */
1583 mono_mb_emit_ldloc (mb, dst_var);
1584 mono_mb_emit_stloc (mb, 1);
1587 case MONO_MARSHAL_CONV_DEL_FTN: {
1588 MonoClass *klass = mono_class_from_mono_type (type);
1590 mono_mb_emit_ldloc (mb, 1);
1591 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1592 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1593 mono_mb_emit_ldloc (mb, 0);
1594 mono_mb_emit_byte (mb, CEE_LDIND_I);
1595 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1596 mono_mb_emit_byte (mb, CEE_STIND_REF);
1599 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1600 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1604 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1605 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1606 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1607 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1609 #endif /* DISABLE_COM */
1611 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1613 * Passing SafeHandles as ref does not allow the unmanaged code
1614 * to change the SafeHandle value. If the value is changed,
1615 * we should issue a diagnostic exception (NotSupportedException)
1616 * that informs the user that changes to handles in unmanaged code
1619 * Since we currently have no access to the original
1620 * SafeHandle that was used during the marshalling,
1621 * for now we just ignore this, and ignore/discard any
1622 * changes that might have happened to the handle.
1627 case MONO_MARSHAL_CONV_HANDLEREF: {
1629 * Passing HandleRefs in a struct that is ref()ed does not
1630 * copy the values back to the HandleRef
1635 case MONO_MARSHAL_CONV_STR_BSTR:
1636 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1637 case MONO_MARSHAL_CONV_STR_TBSTR:
1638 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1640 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1642 mono_mb_emit_exception_marshal_directive (mb, msg);
1649 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1652 if (!ind_store_type)
1653 ind_store_type = &dummy;
1654 *ind_store_type = CEE_STIND_I;
1656 case MONO_MARSHAL_CONV_STR_LPWSTR:
1657 return mono_marshal_string_to_utf16;
1658 case MONO_MARSHAL_CONV_LPWSTR_STR:
1659 *ind_store_type = CEE_STIND_REF;
1660 return ves_icall_mono_string_from_utf16;
1661 case MONO_MARSHAL_CONV_LPTSTR_STR:
1662 *ind_store_type = CEE_STIND_REF;
1663 return ves_icall_string_new_wrapper;
1664 case MONO_MARSHAL_CONV_UTF8STR_STR:
1665 case MONO_MARSHAL_CONV_LPSTR_STR:
1666 *ind_store_type = CEE_STIND_REF;
1667 return ves_icall_string_new_wrapper;
1668 case MONO_MARSHAL_CONV_STR_LPTSTR:
1670 return mono_marshal_string_to_utf16;
1672 return mono_string_to_utf8str;
1674 // In Mono historically LPSTR was treated as a UTF8STR
1675 case MONO_MARSHAL_CONV_STR_UTF8STR:
1676 case MONO_MARSHAL_CONV_STR_LPSTR:
1677 return mono_string_to_utf8str;
1678 case MONO_MARSHAL_CONV_STR_BSTR:
1679 return mono_string_to_bstr;
1680 case MONO_MARSHAL_CONV_BSTR_STR:
1681 *ind_store_type = CEE_STIND_REF;
1682 return mono_string_from_bstr_icall;
1683 case MONO_MARSHAL_CONV_STR_TBSTR:
1684 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1685 return mono_string_to_ansibstr;
1686 case MONO_MARSHAL_CONV_SB_UTF8STR:
1687 case MONO_MARSHAL_CONV_SB_LPSTR:
1688 return mono_string_builder_to_utf8;
1689 case MONO_MARSHAL_CONV_SB_LPTSTR:
1691 return mono_string_builder_to_utf16;
1693 return mono_string_builder_to_utf8;
1695 case MONO_MARSHAL_CONV_SB_LPWSTR:
1696 return mono_string_builder_to_utf16;
1697 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1698 return mono_array_to_savearray;
1699 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1700 return mono_array_to_lparray;
1701 case MONO_MARSHAL_FREE_LPARRAY:
1702 return mono_free_lparray;
1703 case MONO_MARSHAL_CONV_DEL_FTN:
1704 return mono_delegate_to_ftnptr;
1705 case MONO_MARSHAL_CONV_FTN_DEL:
1706 *ind_store_type = CEE_STIND_REF;
1707 return mono_ftnptr_to_delegate;
1708 case MONO_MARSHAL_CONV_UTF8STR_SB:
1709 case MONO_MARSHAL_CONV_LPSTR_SB:
1710 *ind_store_type = CEE_STIND_REF;
1711 return mono_string_utf8_to_builder;
1712 case MONO_MARSHAL_CONV_LPTSTR_SB:
1713 *ind_store_type = CEE_STIND_REF;
1715 return mono_string_utf16_to_builder;
1717 return mono_string_utf8_to_builder;
1719 case MONO_MARSHAL_CONV_LPWSTR_SB:
1720 *ind_store_type = CEE_STIND_REF;
1721 return mono_string_utf16_to_builder;
1722 case MONO_MARSHAL_FREE_ARRAY:
1723 return mono_marshal_free_array;
1724 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1725 return mono_string_to_byvalstr;
1726 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1727 return mono_string_to_byvalwstr;
1729 g_assert_not_reached ();
1736 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1742 case MONO_MARSHAL_CONV_BOOL_I4:
1743 mono_mb_emit_ldloc (mb, 1);
1744 mono_mb_emit_ldloc (mb, 0);
1745 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1746 mono_mb_emit_byte (mb, CEE_STIND_I4);
1748 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1749 mono_mb_emit_ldloc (mb, 1);
1750 mono_mb_emit_ldloc (mb, 0);
1751 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1752 mono_mb_emit_byte (mb, CEE_NEG);
1753 mono_mb_emit_byte (mb, CEE_STIND_I2);
1755 // In Mono historically LPSTR was treated as a UTF8STR
1756 case MONO_MARSHAL_CONV_STR_UTF8STR:
1757 case MONO_MARSHAL_CONV_STR_LPWSTR:
1758 case MONO_MARSHAL_CONV_STR_LPSTR:
1759 case MONO_MARSHAL_CONV_STR_LPTSTR:
1760 case MONO_MARSHAL_CONV_STR_BSTR:
1761 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1762 case MONO_MARSHAL_CONV_STR_TBSTR: {
1765 /* free space if free == true */
1766 mono_mb_emit_ldloc (mb, 2);
1767 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1768 mono_mb_emit_ldloc (mb, 1);
1769 mono_mb_emit_byte (mb, CEE_LDIND_I);
1770 mono_mb_emit_icall (mb, g_free);
1771 mono_mb_patch_short_branch (mb, pos);
1773 mono_mb_emit_ldloc (mb, 1);
1774 mono_mb_emit_ldloc (mb, 0);
1775 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1776 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1777 mono_mb_emit_byte (mb, stind_op);
1780 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1781 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1782 case MONO_MARSHAL_CONV_DEL_FTN:
1783 mono_mb_emit_ldloc (mb, 1);
1784 mono_mb_emit_ldloc (mb, 0);
1785 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1786 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1787 mono_mb_emit_byte (mb, stind_op);
1789 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1790 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1793 mono_mb_emit_ldloc (mb, 1); /* dst */
1794 mono_mb_emit_ldloc (mb, 0);
1795 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1796 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1797 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1800 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1801 MonoClass *eklass = NULL;
1804 if (type->type == MONO_TYPE_SZARRAY) {
1805 eklass = type->data.klass;
1807 g_assert_not_reached ();
1810 if (eklass->valuetype)
1811 esize = mono_class_native_size (eklass, NULL);
1813 esize = sizeof (gpointer);
1815 mono_mb_emit_ldloc (mb, 0);
1816 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1817 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1819 if (eklass->blittable) {
1820 mono_mb_emit_ldloc (mb, 1);
1821 mono_mb_emit_ldloc (mb, 0);
1822 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1823 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1824 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1825 mono_mb_emit_byte (mb, CEE_PREFIX1);
1826 mono_mb_emit_byte (mb, CEE_CPBLK);
1828 int array_var, src_var, dst_var, index_var;
1829 guint32 label2, label3;
1831 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1832 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1833 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1836 mono_mb_emit_ldloc (mb, 0);
1837 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1838 mono_mb_emit_stloc (mb, array_var);
1840 /* save the old src pointer */
1841 mono_mb_emit_ldloc (mb, 0);
1842 mono_mb_emit_stloc (mb, src_var);
1843 /* save the old dst pointer */
1844 mono_mb_emit_ldloc (mb, 1);
1845 mono_mb_emit_stloc (mb, dst_var);
1847 /* Emit marshalling loop */
1848 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1849 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1850 mono_mb_emit_stloc (mb, index_var);
1853 label2 = mono_mb_get_label (mb);
1854 mono_mb_emit_ldloc (mb, index_var);
1855 mono_mb_emit_ldloc (mb, array_var);
1856 mono_mb_emit_byte (mb, CEE_LDLEN);
1857 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1860 mono_mb_emit_ldloc (mb, array_var);
1861 mono_mb_emit_ldloc (mb, index_var);
1862 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1863 mono_mb_emit_stloc (mb, 0);
1865 /* dst is already set */
1867 /* Do the conversion */
1868 emit_struct_conv (mb, eklass, FALSE);
1871 mono_mb_emit_add_to_local (mb, index_var, 1);
1873 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1875 mono_mb_patch_branch (mb, label3);
1877 /* restore the old src pointer */
1878 mono_mb_emit_ldloc (mb, src_var);
1879 mono_mb_emit_stloc (mb, 0);
1880 /* restore the old dst pointer */
1881 mono_mb_emit_ldloc (mb, dst_var);
1882 mono_mb_emit_stloc (mb, 1);
1885 mono_mb_patch_branch (mb, pos);
1888 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1889 mono_mb_emit_ldloc (mb, 0);
1890 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1891 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1893 mono_mb_emit_ldloc (mb, 1);
1894 mono_mb_emit_ldloc (mb, 0);
1895 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1896 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1897 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1898 mono_mb_patch_short_branch (mb, pos);
1901 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1902 int src_var, dst_var;
1904 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1905 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1907 mono_mb_emit_ldloc (mb, 0);
1908 mono_mb_emit_byte (mb, CEE_LDIND_I);
1909 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1911 /* save the old src pointer */
1912 mono_mb_emit_ldloc (mb, 0);
1913 mono_mb_emit_stloc (mb, src_var);
1914 /* save the old dst pointer */
1915 mono_mb_emit_ldloc (mb, 1);
1916 mono_mb_emit_stloc (mb, dst_var);
1918 /* src = pointer to object data */
1919 mono_mb_emit_ldloc (mb, 0);
1920 mono_mb_emit_byte (mb, CEE_LDIND_I);
1921 mono_mb_emit_icon (mb, sizeof (MonoObject));
1922 mono_mb_emit_byte (mb, CEE_ADD);
1923 mono_mb_emit_stloc (mb, 0);
1925 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1927 /* restore the old src pointer */
1928 mono_mb_emit_ldloc (mb, src_var);
1929 mono_mb_emit_stloc (mb, 0);
1930 /* restore the old dst pointer */
1931 mono_mb_emit_ldloc (mb, dst_var);
1932 mono_mb_emit_stloc (mb, 1);
1934 mono_mb_patch_branch (mb, pos);
1939 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1940 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1941 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1942 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1944 #endif /* DISABLE_COM */
1946 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1949 mono_mb_emit_ldloc (mb, 0);
1950 mono_mb_emit_byte (mb, CEE_LDIND_I);
1951 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1952 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1953 mono_mb_patch_branch (mb, pos);
1955 /* Pull the handle field from SafeHandle */
1956 mono_mb_emit_ldloc (mb, 1);
1957 mono_mb_emit_ldloc (mb, 0);
1958 mono_mb_emit_byte (mb, CEE_LDIND_I);
1959 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1960 mono_mb_emit_byte (mb, CEE_LDIND_I);
1961 mono_mb_emit_byte (mb, CEE_STIND_I);
1965 case MONO_MARSHAL_CONV_HANDLEREF: {
1966 mono_mb_emit_ldloc (mb, 1);
1967 mono_mb_emit_ldloc (mb, 0);
1968 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1969 mono_mb_emit_byte (mb, CEE_ADD);
1970 mono_mb_emit_byte (mb, CEE_LDIND_I);
1971 mono_mb_emit_byte (mb, CEE_STIND_I);
1976 g_error ("marshalling conversion %d not implemented", conv);
1982 offset_of_first_nonstatic_field (MonoClass *klass)
1985 int fcount = mono_class_get_field_count (klass);
1986 mono_class_setup_fields (klass);
1987 for (i = 0; i < fcount; i++) {
1988 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
1989 return klass->fields[i].offset - sizeof (MonoObject);
1996 get_fixed_buffer_attr (MonoClassField *field, MonoType **out_etype, int *out_len)
1999 MonoCustomAttrInfo *cinfo;
2000 MonoCustomAttrEntry *attr;
2003 cinfo = mono_custom_attrs_from_field_checked (field->parent, field, &error);
2004 if (!is_ok (&error))
2008 for (aindex = 0; aindex < cinfo->num_attrs; ++aindex) {
2009 MonoClass *ctor_class = cinfo->attrs [aindex].ctor->klass;
2010 if (mono_class_has_parent (ctor_class, mono_class_get_fixed_buffer_attribute_class ())) {
2011 attr = &cinfo->attrs [aindex];
2017 MonoArray *typed_args, *named_args;
2018 CattrNamedArg *arginfo;
2021 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
2022 if (!is_ok (&error))
2024 g_assert (mono_array_length (typed_args) == 2);
2027 o = mono_array_get (typed_args, MonoObject*, 0);
2028 *out_etype = monotype_cast (o)->type;
2029 o = mono_array_get (typed_args, MonoObject*, 1);
2030 g_assert (o->vtable->klass == mono_defaults.int32_class);
2031 *out_len = *(gint32*)mono_object_unbox (o);
2034 if (cinfo && !cinfo->cached)
2035 mono_custom_attrs_free (cinfo);
2036 return attr != NULL;
2040 emit_fixed_buf_conv (MonoMethodBuilder *mb, MonoType *type, MonoType *etype, int len, gboolean to_object, int *out_usize)
2042 MonoClass *klass = mono_class_from_mono_type (type);
2043 MonoClass *eklass = mono_class_from_mono_type (etype);
2046 esize = mono_class_native_size (eklass, NULL);
2048 MonoMarshalNative string_encoding = klass->unicode ? MONO_NATIVE_LPWSTR : MONO_NATIVE_LPSTR;
2049 int usize = mono_class_value_size (eklass, NULL);
2050 int msize = mono_class_value_size (eklass, NULL);
2052 //printf ("FIXED: %s %d %d\n", mono_type_full_name (type), eklass->blittable, string_encoding);
2054 if (eklass->blittable) {
2055 /* copy the elements */
2056 mono_mb_emit_ldloc (mb, 1);
2057 mono_mb_emit_ldloc (mb, 0);
2058 mono_mb_emit_icon (mb, len * esize);
2059 mono_mb_emit_byte (mb, CEE_PREFIX1);
2060 mono_mb_emit_byte (mb, CEE_CPBLK);
2063 guint32 label2, label3;
2065 /* Emit marshalling loop */
2066 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2067 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2068 mono_mb_emit_stloc (mb, index_var);
2071 label2 = mono_mb_get_label (mb);
2072 mono_mb_emit_ldloc (mb, index_var);
2073 mono_mb_emit_icon (mb, len);
2074 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2076 /* src/dst is already set */
2078 /* Do the conversion */
2079 MonoTypeEnum t = etype->type;
2085 case MONO_TYPE_BOOLEAN:
2088 case MONO_TYPE_CHAR:
2094 mono_mb_emit_ldloc (mb, 1);
2095 mono_mb_emit_ldloc (mb, 0);
2096 if (t == MONO_TYPE_CHAR && string_encoding != MONO_NATIVE_LPWSTR) {
2098 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2099 mono_mb_emit_byte (mb, CEE_STIND_I2);
2101 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2102 mono_mb_emit_byte (mb, CEE_STIND_I1);
2106 mono_mb_emit_byte (mb, mono_type_to_ldind (etype));
2107 mono_mb_emit_byte (mb, mono_type_to_stind (etype));
2111 g_assert_not_reached ();
2116 mono_mb_emit_add_to_local (mb, 0, usize);
2117 mono_mb_emit_add_to_local (mb, 1, msize);
2119 mono_mb_emit_add_to_local (mb, 0, msize);
2120 mono_mb_emit_add_to_local (mb, 1, usize);
2124 mono_mb_emit_add_to_local (mb, index_var, 1);
2126 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2128 mono_mb_patch_branch (mb, label3);
2131 *out_usize = usize * len;
2135 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
2136 int offset_of_first_child_field, MonoMarshalNative string_encoding)
2138 MonoMarshalType *info;
2142 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
2144 info = mono_marshal_load_type_info (klass);
2146 if (info->native_size == 0)
2149 if (klass->blittable) {
2150 int usize = mono_class_value_size (klass, NULL);
2151 g_assert (usize == info->native_size);
2152 mono_mb_emit_ldloc (mb, 1);
2153 mono_mb_emit_ldloc (mb, 0);
2154 mono_mb_emit_icon (mb, usize);
2155 mono_mb_emit_byte (mb, CEE_PREFIX1);
2156 mono_mb_emit_byte (mb, CEE_CPBLK);
2159 mono_mb_emit_add_to_local (mb, 0, usize);
2160 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
2162 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
2163 mono_mb_emit_add_to_local (mb, 1, usize);
2168 if (klass != mono_class_try_get_safehandle_class ()) {
2169 if (mono_class_is_auto_layout (klass)) {
2170 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
2171 mono_type_full_name (&klass->byval_arg));
2172 mono_mb_emit_exception_marshal_directive (mb, msg);
2177 for (i = 0; i < info->num_fields; i++) {
2178 MonoMarshalNative ntype;
2179 MonoMarshalConv conv;
2180 MonoType *ftype = info->fields [i].field->type;
2183 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2185 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2188 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2191 msize = klass->instance_size - info->fields [i].field->offset;
2192 usize = info->native_size - info->fields [i].offset;
2194 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2195 usize = info->fields [i + 1].offset - info->fields [i].offset;
2198 if (klass != mono_class_try_get_safehandle_class ()){
2200 * FIXME: Should really check for usize==0 and msize>0, but we apply
2201 * the layout to the managed structure as well.
2204 if (mono_class_is_explicit_layout (klass) && (usize == 0)) {
2205 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2206 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2207 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2208 "reference field at the same offset as another field.",
2209 mono_type_full_name (&klass->byval_arg));
2214 case MONO_MARSHAL_CONV_NONE: {
2217 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2218 g_assert (!ftype->byref);
2219 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2220 mono_mb_emit_ldloc (mb, 1);
2221 mono_mb_emit_ldloc (mb, 0);
2222 mono_mb_emit_byte (mb, CEE_LDIND_I);
2223 mono_mb_emit_byte (mb, CEE_STIND_I);
2234 case MONO_TYPE_BOOLEAN:
2237 case MONO_TYPE_CHAR:
2243 mono_mb_emit_ldloc (mb, 1);
2244 mono_mb_emit_ldloc (mb, 0);
2245 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2247 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2248 mono_mb_emit_byte (mb, CEE_STIND_I2);
2250 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2251 mono_mb_emit_byte (mb, CEE_STIND_I1);
2254 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2255 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2258 case MONO_TYPE_VALUETYPE: {
2259 int src_var, dst_var;
2263 if (ftype->data.klass->enumtype) {
2264 ftype = mono_class_enum_basetype (ftype->data.klass);
2268 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2269 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2271 /* save the old src pointer */
2272 mono_mb_emit_ldloc (mb, 0);
2273 mono_mb_emit_stloc (mb, src_var);
2274 /* save the old dst pointer */
2275 mono_mb_emit_ldloc (mb, 1);
2276 mono_mb_emit_stloc (mb, dst_var);
2278 if (get_fixed_buffer_attr (info->fields [i].field, &etype, &len)) {
2279 emit_fixed_buf_conv (mb, ftype, etype, len, to_object, &usize);
2281 emit_struct_conv (mb, ftype->data.klass, to_object);
2284 /* restore the old src pointer */
2285 mono_mb_emit_ldloc (mb, src_var);
2286 mono_mb_emit_stloc (mb, 0);
2287 /* restore the old dst pointer */
2288 mono_mb_emit_ldloc (mb, dst_var);
2289 mono_mb_emit_stloc (mb, 1);
2292 case MONO_TYPE_OBJECT: {
2295 static MonoMethod *variant_clear = NULL;
2296 static MonoMethod *get_object_for_native_variant = NULL;
2299 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2300 if (!get_object_for_native_variant)
2301 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2302 mono_mb_emit_ldloc (mb, 1);
2303 mono_mb_emit_ldloc (mb, 0);
2304 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2305 mono_mb_emit_byte (mb, CEE_STIND_REF);
2307 mono_mb_emit_ldloc (mb, 0);
2308 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2311 static MonoMethod *get_native_variant_for_object = NULL;
2313 if (!get_native_variant_for_object)
2314 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2316 mono_mb_emit_ldloc (mb, 0);
2317 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2318 mono_mb_emit_ldloc (mb, 1);
2319 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2322 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2323 mono_mb_emit_exception_marshal_directive (mb, msg);
2329 g_warning ("marshaling type %02x not implemented", ftype->type);
2330 g_assert_not_reached ();
2335 int src_var, dst_var;
2337 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2338 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2340 /* save the old src pointer */
2341 mono_mb_emit_ldloc (mb, 0);
2342 mono_mb_emit_stloc (mb, src_var);
2343 /* save the old dst pointer */
2344 mono_mb_emit_ldloc (mb, 1);
2345 mono_mb_emit_stloc (mb, dst_var);
2348 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2350 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2352 /* restore the old src pointer */
2353 mono_mb_emit_ldloc (mb, src_var);
2354 mono_mb_emit_stloc (mb, 0);
2355 /* restore the old dst pointer */
2356 mono_mb_emit_ldloc (mb, dst_var);
2357 mono_mb_emit_stloc (mb, 1);
2362 mono_mb_emit_add_to_local (mb, 0, usize);
2363 mono_mb_emit_add_to_local (mb, 1, msize);
2365 mono_mb_emit_add_to_local (mb, 0, msize);
2366 mono_mb_emit_add_to_local (mb, 1, usize);
2372 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2374 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2378 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2380 /* Call DestroyStructure */
2381 /* FIXME: Only do this if needed */
2382 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2383 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2384 mono_mb_emit_ldloc (mb, struct_var);
2385 mono_mb_emit_icall (mb, mono_struct_delete_old);
2389 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2391 int pos_noabort, pos_noex;
2393 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2394 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2395 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2396 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2398 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2399 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2401 mono_mb_emit_icall (mb, checkpoint_func);
2402 /* Throw the exception returned by the checkpoint function, if any */
2403 mono_mb_emit_byte (mb, CEE_DUP);
2404 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2405 mono_mb_emit_byte (mb, CEE_THROW);
2406 mono_mb_patch_branch (mb, pos_noex);
2407 mono_mb_emit_byte (mb, CEE_POP);
2409 mono_mb_patch_branch (mb, pos_noabort);
2413 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2415 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2418 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2422 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2424 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2428 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2430 emit_thread_interrupt_checkpoint (mb);
2434 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2436 emit_thread_force_interrupt_checkpoint (mb);
2439 #endif /* DISABLE_JIT */
2441 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2442 static MonoAsyncResult *
2443 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2446 MonoMulticastDelegate *mcast_delegate;
2450 g_assert (delegate);
2451 mcast_delegate = (MonoMulticastDelegate *) delegate;
2452 if (mcast_delegate->delegates != NULL) {
2453 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2457 #ifndef DISABLE_REMOTING
2458 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2459 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2460 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2461 /* If the target is a proxy, make a direct call. Is proxy's work
2462 // to make the call asynchronous.
2464 MonoMethodMessage *msg;
2465 MonoDelegate *async_callback;
2467 MonoAsyncResult *ares;
2469 MonoArray *out_args;
2470 method = delegate->method;
2472 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2473 if (mono_error_set_pending_exception (&error))
2475 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2476 if (mono_error_set_pending_exception (&error))
2478 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2479 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2480 MONO_OBJECT_SETREF (msg, async_result, ares);
2481 msg->call_type = CallType_BeginInvoke;
2484 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2485 if (!mono_error_ok (&error)) {
2486 mono_error_set_pending_exception (&error);
2490 mono_set_pending_exception ((MonoException *) exc);
2496 klass = delegate->object.vtable->klass;
2498 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2500 method = mono_get_delegate_invoke (klass);
2503 MonoAsyncResult *result = mono_threadpool_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2504 mono_error_set_pending_exception (&error);
2511 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2513 int i, params_var, tmp_var;
2515 /* allocate local (pointer) *params[] */
2516 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2517 /* allocate local (pointer) tmp */
2518 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2520 /* alloate space on stack to store an array of pointers to the arguments */
2521 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2522 mono_mb_emit_byte (mb, CEE_PREFIX1);
2523 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2524 mono_mb_emit_stloc (mb, params_var);
2527 mono_mb_emit_ldloc (mb, params_var);
2528 mono_mb_emit_stloc (mb, tmp_var);
2530 if (save_this && sig->hasthis) {
2531 mono_mb_emit_ldloc (mb, tmp_var);
2532 mono_mb_emit_ldarg_addr (mb, 0);
2533 mono_mb_emit_byte (mb, CEE_STIND_I);
2534 /* tmp = tmp + sizeof (gpointer) */
2535 if (sig->param_count)
2536 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2540 for (i = 0; i < sig->param_count; i++) {
2541 mono_mb_emit_ldloc (mb, tmp_var);
2542 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2543 mono_mb_emit_byte (mb, CEE_STIND_I);
2544 /* tmp = tmp + sizeof (gpointer) */
2545 if (i < (sig->param_count - 1))
2546 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2552 #endif /* DISABLE_JIT */
2555 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2559 GString *res = g_string_new ("");
2562 g_string_append (res, prefix);
2563 g_string_append_c (res, '_');
2566 mono_type_get_desc (res, sig->ret, FALSE);
2569 g_string_append (res, "__this__");
2571 for (i = 0; i < sig->param_count; ++i) {
2572 g_string_append_c (res, '_');
2573 mono_type_get_desc (res, sig->params [i], FALSE);
2576 g_string_free (res, FALSE);
2581 * mono_marshal_get_string_encoding:
2583 * Return the string encoding which should be used for a given parameter.
2585 static MonoMarshalNative
2586 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2588 /* First try the parameter marshal info */
2590 if (spec->native == MONO_NATIVE_LPARRAY) {
2591 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2592 return spec->data.array_data.elem_type;
2595 return spec->native;
2599 return MONO_NATIVE_LPSTR;
2601 /* Then try the method level marshal info */
2602 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2603 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2604 return MONO_NATIVE_LPSTR;
2605 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2606 return MONO_NATIVE_LPWSTR;
2607 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2609 return MONO_NATIVE_LPWSTR;
2611 return MONO_NATIVE_LPSTR;
2614 return MONO_NATIVE_LPSTR;
2618 static MonoMarshalConv
2619 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2621 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2624 case MONO_NATIVE_LPWSTR:
2625 return MONO_MARSHAL_CONV_STR_LPWSTR;
2626 case MONO_NATIVE_LPSTR:
2627 case MONO_NATIVE_VBBYREFSTR:
2628 return MONO_MARSHAL_CONV_STR_LPSTR;
2629 case MONO_NATIVE_LPTSTR:
2630 return MONO_MARSHAL_CONV_STR_LPTSTR;
2631 case MONO_NATIVE_BSTR:
2632 return MONO_MARSHAL_CONV_STR_BSTR;
2633 case MONO_NATIVE_UTF8STR:
2634 return MONO_MARSHAL_CONV_STR_UTF8STR;
2636 return MONO_MARSHAL_CONV_INVALID;
2640 static MonoMarshalConv
2641 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2643 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2646 case MONO_NATIVE_LPWSTR:
2647 return MONO_MARSHAL_CONV_SB_LPWSTR;
2648 case MONO_NATIVE_LPSTR:
2649 return MONO_MARSHAL_CONV_SB_LPSTR;
2650 case MONO_NATIVE_UTF8STR:
2651 return MONO_MARSHAL_CONV_SB_UTF8STR;
2652 case MONO_NATIVE_LPTSTR:
2653 return MONO_MARSHAL_CONV_SB_LPTSTR;
2655 return MONO_MARSHAL_CONV_INVALID;
2659 static MonoMarshalConv
2660 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2662 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2667 case MONO_NATIVE_LPWSTR:
2669 return MONO_MARSHAL_CONV_LPWSTR_STR;
2670 case MONO_NATIVE_UTF8STR:
2671 return MONO_MARSHAL_CONV_UTF8STR_STR;
2672 case MONO_NATIVE_LPSTR:
2673 case MONO_NATIVE_VBBYREFSTR:
2674 return MONO_MARSHAL_CONV_LPSTR_STR;
2675 case MONO_NATIVE_LPTSTR:
2679 return MONO_MARSHAL_CONV_LPTSTR_STR;
2680 case MONO_NATIVE_BSTR:
2681 return MONO_MARSHAL_CONV_BSTR_STR;
2683 return MONO_MARSHAL_CONV_INVALID;
2687 static MonoMarshalConv
2688 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2690 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2695 case MONO_NATIVE_LPWSTR:
2697 * mono_string_builder_to_utf16 does not allocate a
2698 * new buffer, so no need to free it.
2701 return MONO_MARSHAL_CONV_LPWSTR_SB;
2702 case MONO_NATIVE_UTF8STR:
2703 return MONO_MARSHAL_CONV_UTF8STR_SB;
2704 case MONO_NATIVE_LPSTR:
2705 return MONO_MARSHAL_CONV_LPSTR_SB;
2707 case MONO_NATIVE_LPTSTR:
2708 return MONO_MARSHAL_CONV_LPTSTR_SB;
2711 return MONO_MARSHAL_CONV_INVALID;
2716 * Return whenever a field of a native structure or an array member needs to
2720 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2722 MonoMarshalNative encoding;
2725 case MONO_TYPE_VALUETYPE:
2726 /* FIXME: Optimize this */
2728 case MONO_TYPE_OBJECT:
2729 case MONO_TYPE_CLASS:
2730 if (t->data.klass == mono_defaults.stringbuilder_class) {
2732 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2736 case MONO_TYPE_STRING:
2737 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2738 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2745 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2748 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2751 mono_marshal_lock ();
2754 g_hash_table_new (hash_func, equal_func);
2755 mono_memory_barrier ();
2758 mono_marshal_unlock ();
2764 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2766 return get_cache (var, hash_func, equal_func);
2770 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2774 mono_marshal_lock ();
2775 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2776 mono_marshal_unlock ();
2783 * Create a MonoMethod from MB, set INFO as wrapper info.
2786 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2787 int max_stack, WrapperInfo *info)
2791 res = mono_mb_create_method (mb, sig, max_stack);
2793 mono_marshal_set_wrapper_info (res, info);
2797 /* Create the method from the builder and place it in the cache */
2799 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2800 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2801 int max_stack, WrapperInfo *info, gboolean *out_found)
2808 mono_marshal_lock ();
2809 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2810 mono_marshal_unlock ();
2813 newm = mono_mb_create_method (mb, sig, max_stack);
2814 mono_marshal_lock ();
2815 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2818 g_hash_table_insert (cache, key, res);
2819 mono_marshal_set_wrapper_info (res, info);
2820 mono_marshal_unlock ();
2824 mono_marshal_unlock ();
2825 mono_free_method (newm);
2833 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2834 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2837 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2841 * mono_marshal_method_from_wrapper:
2844 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2847 int wrapper_type = wrapper->wrapper_type;
2850 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2853 info = mono_marshal_get_wrapper_info (wrapper);
2855 switch (wrapper_type) {
2856 case MONO_WRAPPER_REMOTING_INVOKE:
2857 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2858 case MONO_WRAPPER_XDOMAIN_INVOKE:
2859 m = info->d.remoting.method;
2860 if (wrapper->is_inflated) {
2864 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2865 * contains an uninflated method.
2867 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2868 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2872 case MONO_WRAPPER_SYNCHRONIZED:
2873 m = info->d.synchronized.method;
2874 if (wrapper->is_inflated) {
2877 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2878 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2882 case MONO_WRAPPER_UNBOX:
2883 return info->d.unbox.method;
2884 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2885 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2886 return info->d.managed_to_native.method;
2889 case MONO_WRAPPER_RUNTIME_INVOKE:
2890 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2891 return info->d.runtime_invoke.method;
2894 case MONO_WRAPPER_DELEGATE_INVOKE:
2896 return info->d.delegate_invoke.method;
2905 * mono_marshal_get_wrapper_info:
2907 * Retrieve the WrapperInfo structure associated with WRAPPER.
2910 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2912 g_assert (wrapper->wrapper_type);
2914 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2918 * mono_marshal_set_wrapper_info:
2920 * Set the WrapperInfo structure associated with the wrapper
2921 * method METHOD to INFO.
2924 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2928 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2931 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2936 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2940 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2941 info->subtype = subtype;
2946 * get_wrapper_target_class:
2948 * Return the class where a wrapper method should be placed.
2951 get_wrapper_target_class (MonoImage *image)
2958 * - can't put all wrappers into an mscorlib class, because they reference
2959 * metadata (signature) so they should be put into the same image as the
2960 * method they wrap, so they are unloaded together.
2961 * - putting them into a class with a type initalizer could cause the
2962 * initializer to be executed which can be a problem if the wrappers are
2964 * - putting them into an inflated class can cause problems if the the
2965 * class is deleted because it references an image which is unloaded.
2966 * To avoid these problems, we put the wrappers into the <Module> class of
2969 if (image_is_dynamic (image)) {
2970 klass = ((MonoDynamicImage*)image)->wrappers_type;
2972 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2973 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2981 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2982 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2986 * check_generic_wrapper_cache:
2988 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2989 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2990 * generic method definition.
2993 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2996 MonoMethod *inst, *def;
2997 MonoGenericContext *ctx;
2999 g_assert (orig_method->is_inflated);
3000 ctx = mono_method_get_context (orig_method);
3003 * Look for the instance
3005 res = mono_marshal_find_in_cache (cache, key);
3010 * Look for the definition
3012 def = mono_marshal_find_in_cache (cache, def_key);
3015 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3016 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3018 mono_memory_barrier ();
3019 mono_marshal_lock ();
3020 res = (MonoMethod *)g_hash_table_lookup (cache, key);
3022 g_hash_table_insert (cache, key, inst);
3025 mono_marshal_unlock ();
3032 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
3035 MonoMethod *inst, *res;
3038 * We use the same cache for the generic definition and the instances.
3040 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3041 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3042 mono_memory_barrier ();
3043 mono_marshal_lock ();
3044 res = (MonoMethod *)g_hash_table_lookup (cache, key);
3046 g_hash_table_insert (cache, key, inst);
3049 mono_marshal_unlock ();
3054 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
3058 MonoMethod *inst, *def;
3061 * Look for the instance
3063 res = mono_marshal_find_in_cache (cache, orig_method->klass);
3068 * Look for the definition
3070 def = mono_marshal_find_in_cache (cache, def_method->klass);
3072 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3073 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3076 mono_memory_barrier ();
3077 mono_marshal_lock ();
3078 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3080 g_hash_table_insert (cache, orig_method->klass, inst);
3083 mono_marshal_unlock ();
3090 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
3093 MonoMethod *inst, *res;
3094 WrapperInfo *ginfo, *info;
3097 * We use the same cache for the generic definition and the instances.
3099 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3100 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3102 ginfo = mono_marshal_get_wrapper_info (def);
3104 info = (WrapperInfo *)mono_image_alloc0 (def->klass->image, sizeof (WrapperInfo));
3105 info->subtype = ginfo->subtype;
3106 if (info->subtype == WRAPPER_SUBTYPE_NONE) {
3107 info->d.delegate_invoke.method = mono_class_inflate_generic_method_checked (ginfo->d.delegate_invoke.method, ctx, &error);
3108 mono_error_assert_ok (&error);
3112 mono_memory_barrier ();
3113 mono_marshal_lock ();
3114 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3116 g_hash_table_insert (cache, orig_method->klass, inst);
3119 mono_marshal_unlock ();
3124 * mono_marshal_get_delegate_begin_invoke:
3127 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
3129 MonoMethodSignature *sig;
3130 MonoMethodBuilder *mb;
3135 MonoGenericContext *ctx = NULL;
3136 MonoMethod *orig_method = NULL;
3138 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3139 !strcmp (method->name, "BeginInvoke"));
3142 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3144 if (method->is_inflated) {
3145 orig_method = method;
3146 ctx = &((MonoMethodInflated*)method)->context;
3147 method = ((MonoMethodInflated*)method)->declaring;
3150 sig = mono_signature_no_pinvoke (method);
3156 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
3157 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3161 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
3162 (GHashFunc)mono_signature_hash,
3163 (GCompareFunc)mono_metadata_signature_equal);
3164 if ((res = mono_marshal_find_in_cache (cache, sig)))
3168 g_assert (sig->hasthis);
3170 name = mono_signature_to_name (sig, "begin_invoke");
3172 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3174 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3178 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3180 mono_mb_emit_ldarg (mb, 0);
3181 mono_mb_emit_ldloc (mb, params_var);
3182 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3183 mono_mb_emit_byte (mb, CEE_RET);
3188 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3189 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3191 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3198 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
3200 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3203 MonoDomain *domain = mono_domain_get ();
3204 MonoAsyncResult *ares;
3205 MonoMethod *method = NULL;
3206 MonoMethodSignature *sig;
3207 MonoMethodMessage *msg;
3208 MonoObject *res, *exc;
3209 MonoArray *out_args;
3212 g_assert (delegate);
3214 if (!delegate->method_info) {
3215 g_assert (delegate->method);
3216 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
3217 if (!mono_error_ok (&error)) {
3218 mono_error_set_pending_exception (&error);
3221 MONO_OBJECT_SETREF (delegate, method_info, rm);
3224 if (!delegate->method_info || !delegate->method_info->method)
3225 g_assert_not_reached ();
3227 klass = delegate->object.vtable->klass;
3229 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3230 g_assert (method != NULL);
3232 sig = mono_signature_no_pinvoke (method);
3234 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3235 if (mono_error_set_pending_exception (&error))
3238 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3240 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."));
3244 if (ares->async_delegate != (MonoObject*)delegate) {
3245 mono_set_pending_exception (mono_get_exception_invalid_operation (
3246 "The IAsyncResult object provided does not match this delegate."));
3250 #ifndef DISABLE_REMOTING
3251 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3252 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3253 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3254 if (!mono_error_ok (&error)) {
3255 mono_error_set_pending_exception (&error);
3258 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3259 if (mono_error_set_pending_exception (&error))
3261 msg->call_type = CallType_EndInvoke;
3262 MONO_OBJECT_SETREF (msg, async_result, ares);
3263 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3264 if (!mono_error_ok (&error)) {
3265 mono_error_set_pending_exception (&error);
3271 res = mono_threadpool_end_invoke (ares, &out_args, &exc, &error);
3272 if (mono_error_set_pending_exception (&error))
3277 if (((MonoException*)exc)->stack_trace) {
3278 MonoError inner_error;
3279 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3280 if (is_ok (&inner_error)) {
3282 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3284 MonoString *tmp_str = mono_string_new_checked (domain, tmp, &inner_error);
3286 if (is_ok (&inner_error))
3287 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, tmp_str);
3289 if (!is_ok (&inner_error))
3290 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3292 mono_set_pending_exception ((MonoException*)exc);
3295 mono_method_return_message_restore (method, params, out_args, &error);
3296 mono_error_set_pending_exception (&error);
3303 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3305 MonoType *t = mono_type_get_underlying_type (return_type);
3307 if (return_type->byref)
3308 return_type = &mono_defaults.int_class->byval_arg;
3311 case MONO_TYPE_VOID:
3312 g_assert_not_reached ();
3315 case MONO_TYPE_STRING:
3316 case MONO_TYPE_CLASS:
3317 case MONO_TYPE_OBJECT:
3318 case MONO_TYPE_ARRAY:
3319 case MONO_TYPE_SZARRAY:
3323 case MONO_TYPE_BOOLEAN:
3326 case MONO_TYPE_CHAR:
3336 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3337 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3339 case MONO_TYPE_GENERICINST:
3340 if (!mono_type_generic_inst_is_valuetype (t))
3343 case MONO_TYPE_VALUETYPE: {
3344 MonoClass *klass = mono_class_from_mono_type (return_type);
3345 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3346 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3350 case MONO_TYPE_MVAR: {
3351 MonoClass *klass = mono_class_from_mono_type (return_type);
3352 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3356 g_warning ("type 0x%x not handled", return_type->type);
3357 g_assert_not_reached ();
3360 mono_mb_emit_byte (mb, CEE_RET);
3363 #endif /* DISABLE_JIT */
3366 * mono_marshal_get_delegate_end_invoke:
3369 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3371 MonoMethodSignature *sig;
3372 MonoMethodBuilder *mb;
3377 MonoGenericContext *ctx = NULL;
3378 MonoMethod *orig_method = NULL;
3380 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3381 !strcmp (method->name, "EndInvoke"));
3384 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3386 if (method->is_inflated) {
3387 orig_method = method;
3388 ctx = &((MonoMethodInflated*)method)->context;
3389 method = ((MonoMethodInflated*)method)->declaring;
3392 sig = mono_signature_no_pinvoke (method);
3398 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3399 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3403 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3404 (GHashFunc)mono_signature_hash,
3405 (GCompareFunc)mono_metadata_signature_equal);
3406 if ((res = mono_marshal_find_in_cache (cache, sig)))
3410 g_assert (sig->hasthis);
3412 name = mono_signature_to_name (sig, "end_invoke");
3414 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3416 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3420 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3422 mono_mb_emit_ldarg (mb, 0);
3423 mono_mb_emit_ldloc (mb, params_var);
3424 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3426 if (sig->ret->type == MONO_TYPE_VOID) {
3427 mono_mb_emit_byte (mb, CEE_POP);
3428 mono_mb_emit_byte (mb, CEE_RET);
3430 mono_mb_emit_restore_result (mb, sig->ret);
3435 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3436 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3438 res = mono_mb_create_and_cache (cache, sig,
3439 mb, sig, sig->param_count + 16);
3448 MonoMethodSignature *sig;
3450 } SignaturePointerPair;
3453 signature_pointer_pair_hash (gconstpointer data)
3455 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3457 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3461 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3463 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3464 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3468 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3470 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3472 return pair->pointer == user_data;
3476 free_signature_pointer_pair (SignaturePointerPair *pair)
3482 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3484 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3486 MonoMethodBuilder *mb;
3489 gpointer cache_key = NULL;
3490 SignaturePointerPair key = { NULL, NULL };
3491 SignaturePointerPair *new_key;
3492 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3493 int pos0, pos1, pos2;
3495 MonoClass *target_class = NULL;
3496 gboolean closed_over_null = FALSE;
3497 MonoGenericContext *ctx = NULL;
3498 MonoGenericContainer *container = NULL;
3499 MonoMethod *orig_method = method;
3501 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3505 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3506 !strcmp (method->name, "Invoke"));
3508 invoke_sig = sig = mono_signature_no_pinvoke (method);
3511 * If the delegate target is null, and the target method is not static, a virtual
3512 * call is made to that method with the first delegate argument as this. This is
3513 * a non-documented .NET feature.
3516 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3517 if (target_method->is_inflated) {
3519 MonoType *target_type;
3521 g_assert (method->signature->hasthis);
3522 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3523 mono_method_get_context (method), &error);
3524 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3525 target_class = mono_class_from_mono_type (target_type);
3527 target_class = target_method->klass;
3530 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3533 if (static_method_with_first_arg_bound) {
3534 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3535 g_assert (!callvirt);
3536 invoke_sig = mono_method_signature (target_method);
3540 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3542 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3543 ctx = &((MonoMethodInflated*)method)->context;
3544 method = ((MonoMethodInflated*)method)->declaring;
3546 container = mono_method_get_generic_container (method);
3548 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
3549 g_assert (container);
3551 invoke_sig = sig = mono_signature_no_pinvoke (method);
3558 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3559 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3562 cache_key = method->klass;
3563 } else if (static_method_with_first_arg_bound) {
3564 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3565 (GHashFunc)mono_signature_hash,
3566 (GCompareFunc)mono_metadata_signature_equal);
3568 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3570 res = mono_marshal_find_in_cache (cache, invoke_sig);
3573 cache_key = invoke_sig;
3574 } else if (callvirt) {
3575 GHashTable **cache_ptr;
3577 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3579 /* We need to cache the signature+method pair */
3580 mono_marshal_lock ();
3582 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3584 key.sig = invoke_sig;
3585 key.pointer = target_method;
3586 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3587 mono_marshal_unlock ();
3591 // Inflated methods should not be in this cache because it's not stored on the imageset.
3592 g_assert (!method->is_inflated);
3593 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3594 (GHashFunc)mono_signature_hash,
3595 (GCompareFunc)mono_metadata_signature_equal);
3596 res = mono_marshal_find_in_cache (cache, sig);
3602 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3603 static_sig->hasthis = 0;
3604 if (!static_method_with_first_arg_bound)
3605 invoke_sig = static_sig;
3607 if (static_method_with_first_arg_bound)
3608 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3609 else if (closed_over_null)
3610 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3612 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3614 name = mono_signature_to_name (invoke_sig, "invoke");
3616 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3618 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3622 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3624 /* allocate local 0 (object) */
3625 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3626 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3627 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3628 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3629 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3632 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3634 g_assert (sig->hasthis);
3637 * {type: sig->ret} res;
3638 * if (delegates == null) {
3639 * return this.<target> ( args .. );
3641 * int i = 0, len = this.delegates.Length;
3643 * res = this.delegates [i].Invoke ( args .. );
3644 * } while (++i < len);
3649 /* this wrapper can be used in unmanaged-managed transitions */
3650 emit_thread_interrupt_checkpoint (mb);
3652 /* delegates = this.delegates */
3653 mono_mb_emit_ldarg (mb, 0);
3654 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3655 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3656 mono_mb_emit_stloc (mb, local_delegates);
3658 /* if (delegates == null) */
3659 mono_mb_emit_ldloc (mb, local_delegates);
3660 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3662 /* return target.<target_method|method_ptr> ( args .. ); */
3664 /* target = d.target; */
3665 mono_mb_emit_ldarg (mb, 0);
3666 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3667 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3668 mono_mb_emit_stloc (mb, local_target);
3670 /*static methods with bound first arg can have null target and still be bound*/
3671 if (!static_method_with_first_arg_bound) {
3672 /* if target != null */
3673 mono_mb_emit_ldloc (mb, local_target);
3674 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3676 /* then call this->method_ptr nonstatic */
3679 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3681 mono_mb_emit_ldloc (mb, local_target);
3682 for (i = 0; i < sig->param_count; ++i)
3683 mono_mb_emit_ldarg (mb, i + 1);
3684 mono_mb_emit_ldarg (mb, 0);
3685 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3686 mono_mb_emit_byte (mb, CEE_LDIND_I);
3687 mono_mb_emit_ldarg (mb, 0);
3688 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3689 mono_mb_emit_byte (mb, CEE_LDIND_I);
3690 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3691 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3692 mono_mb_emit_byte (mb, CEE_RET);
3695 /* else [target == null] call this->method_ptr static */
3696 mono_mb_patch_branch (mb, pos0);
3700 if (!closed_over_null) {
3701 if (target_class->valuetype) {
3702 mono_mb_emit_ldarg (mb, 1);
3703 for (i = 1; i < sig->param_count; ++i)
3704 mono_mb_emit_ldarg (mb, i + 1);
3705 mono_mb_emit_op (mb, CEE_CALL, target_method);
3707 mono_mb_emit_ldarg (mb, 1);
3708 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3709 for (i = 1; i < sig->param_count; ++i)
3710 mono_mb_emit_ldarg (mb, i + 1);
3711 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3714 mono_mb_emit_byte (mb, CEE_LDNULL);
3715 for (i = 0; i < sig->param_count; ++i)
3716 mono_mb_emit_ldarg (mb, i + 1);
3717 mono_mb_emit_op (mb, CEE_CALL, target_method);
3720 if (static_method_with_first_arg_bound) {
3721 mono_mb_emit_ldloc (mb, local_target);
3722 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3723 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3725 for (i = 0; i < sig->param_count; ++i)
3726 mono_mb_emit_ldarg (mb, i + 1);
3727 mono_mb_emit_ldarg (mb, 0);
3728 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3729 mono_mb_emit_byte (mb, CEE_LDIND_I);
3730 mono_mb_emit_ldarg (mb, 0);
3731 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3732 mono_mb_emit_byte (mb, CEE_LDIND_I);
3733 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3734 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3737 mono_mb_emit_byte (mb, CEE_RET);
3739 /* else [delegates != null] */
3740 mono_mb_patch_branch (mb, pos2);
3742 /* len = delegates.Length; */
3743 mono_mb_emit_ldloc (mb, local_delegates);
3744 mono_mb_emit_byte (mb, CEE_LDLEN);
3745 mono_mb_emit_byte (mb, CEE_CONV_I4);
3746 mono_mb_emit_stloc (mb, local_len);
3749 mono_mb_emit_icon (mb, 0);
3750 mono_mb_emit_stloc (mb, local_i);
3752 pos1 = mono_mb_get_label (mb);
3754 /* d = delegates [i]; */
3755 mono_mb_emit_ldloc (mb, local_delegates);
3756 mono_mb_emit_ldloc (mb, local_i);
3757 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3758 mono_mb_emit_stloc (mb, local_d);
3760 /* res = d.Invoke ( args .. ); */
3761 mono_mb_emit_ldloc (mb, local_d);
3762 for (i = 0; i < sig->param_count; i++)
3763 mono_mb_emit_ldarg (mb, i + 1);
3765 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3768 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3769 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3772 mono_mb_emit_stloc (mb, local_res);
3775 mono_mb_emit_add_to_local (mb, local_i, 1);
3778 mono_mb_emit_ldloc (mb, local_i);
3779 mono_mb_emit_ldloc (mb, local_len);
3780 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3784 mono_mb_emit_ldloc (mb, local_res);
3785 mono_mb_emit_byte (mb, CEE_RET);
3787 mb->skip_visibility = 1;
3788 #endif /* DISABLE_JIT */
3790 info = mono_wrapper_info_create (mb, subtype);
3791 info->d.delegate_invoke.method = method;
3796 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3797 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3798 } else if (callvirt) {
3799 new_key = g_new0 (SignaturePointerPair, 1);
3802 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3806 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3810 /* mono_method_print_code (res); */
3816 * mono_marshal_get_delegate_invoke:
3817 * The returned method invokes all methods in a multicast delegate.
3820 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3822 gboolean callvirt = FALSE;
3823 gboolean static_method_with_first_arg_bound = FALSE;
3824 MonoMethod *target_method = NULL;
3825 MonoMethodSignature *sig;
3827 sig = mono_signature_no_pinvoke (method);
3829 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3831 target_method = del->method;
3834 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3835 static_method_with_first_arg_bound = TRUE;
3836 target_method = del->method;
3839 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3843 MonoMethodSignature *ctor_sig;
3844 MonoMethodSignature *sig;
3847 /* protected by the marshal lock, contains CtorSigPair pointers */
3848 static GSList *strsig_list = NULL;
3850 static MonoMethodSignature *
3851 lookup_string_ctor_signature (MonoMethodSignature *sig)
3853 MonoMethodSignature *callsig;
3857 mono_marshal_lock ();
3859 for (item = strsig_list; item; item = item->next) {
3860 cs = (CtorSigPair *)item->data;
3861 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3862 * because it is lock-free.
3864 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3869 mono_marshal_unlock ();
3873 static MonoMethodSignature *
3874 add_string_ctor_signature (MonoMethod *method)
3876 MonoMethodSignature *callsig;
3879 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3880 callsig->ret = &mono_defaults.string_class->byval_arg;
3881 cs = g_new (CtorSigPair, 1);
3883 cs->ctor_sig = mono_method_signature (method);
3885 mono_marshal_lock ();
3886 strsig_list = g_slist_prepend (strsig_list, cs);
3887 mono_marshal_unlock ();
3892 * mono_marshal_get_string_ctor_signature:
3894 * Return the modified signature used by string ctors (they return the newly created
3897 MonoMethodSignature*
3898 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3900 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3902 sig = add_string_ctor_signature (method);
3908 get_runtime_invoke_type (MonoType *t, gboolean ret)
3911 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3913 /* Can't share this with 'I' as that needs another indirection */
3914 return &mono_defaults.int_class->this_arg;
3917 if (MONO_TYPE_IS_REFERENCE (t))
3918 return &mono_defaults.object_class->byval_arg;
3921 /* The result needs to be boxed */
3926 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3929 return &mono_defaults.sbyte_class->byval_arg;
3931 return &mono_defaults.int16_class->byval_arg;
3933 return &mono_defaults.int32_class->byval_arg;
3936 return &mono_defaults.int64_class->byval_arg;
3937 case MONO_TYPE_BOOLEAN:
3938 return &mono_defaults.byte_class->byval_arg;
3939 case MONO_TYPE_CHAR:
3940 return &mono_defaults.uint16_class->byval_arg;
3942 return &mono_defaults.int_class->byval_arg;
3943 case MONO_TYPE_VALUETYPE:
3944 if (t->data.klass->enumtype) {
3945 t = mono_class_enum_basetype (t->data.klass);
3955 * mono_marshal_get_runtime_invoke_sig:
3957 * Return a common signature used for sharing runtime invoke wrappers.
3959 static MonoMethodSignature*
3960 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3962 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3965 res->generic_param_count = 0;
3966 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3967 for (i = 0; i < res->param_count; ++i)
3968 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3974 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3976 /* Can't share wrappers which return a vtype since it needs to be boxed */
3977 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))
3980 return mono_metadata_signature_equal (sig1, sig2);
3988 * Emit the call to the wrapper method from a runtime invoke wrapper.
3991 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3992 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3994 gboolean virtual_, gboolean need_direct_wrapper)
3996 static MonoString *string_dummy = NULL;
3998 int *tmp_nullable_locals;
3999 gboolean void_ret = FALSE;
4000 gboolean string_ctor = method && method->string_ctor;
4002 /* to make it work with our special string constructors */
4003 if (!string_dummy) {
4004 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
4005 string_dummy = mono_string_new_wrapper ("dummy");
4009 g_assert (sig->hasthis);
4010 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4015 if (mono_gc_is_moving ()) {
4016 mono_mb_emit_ptr (mb, &string_dummy);
4017 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4019 mono_mb_emit_ptr (mb, string_dummy);
4022 mono_mb_emit_ldarg (mb, 0);
4026 tmp_nullable_locals = g_new0 (int, sig->param_count);
4028 for (i = 0; i < sig->param_count; i++) {
4029 MonoType *t = sig->params [i];
4032 mono_mb_emit_ldarg (mb, 1);
4034 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4035 mono_mb_emit_byte (mb, CEE_ADD);
4039 mono_mb_emit_byte (mb, CEE_LDIND_I);
4040 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4041 * So to make this work we unbox it to a local variablee and push a reference to that.
4043 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4044 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4046 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4047 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4048 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4053 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4054 type = sig->params [i]->type;
4058 case MONO_TYPE_BOOLEAN:
4062 case MONO_TYPE_CHAR:
4071 mono_mb_emit_byte (mb, CEE_LDIND_I);
4072 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4074 case MONO_TYPE_STRING:
4075 case MONO_TYPE_CLASS:
4076 case MONO_TYPE_ARRAY:
4078 case MONO_TYPE_SZARRAY:
4079 case MONO_TYPE_OBJECT:
4080 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4082 case MONO_TYPE_GENERICINST:
4083 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4084 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4089 case MONO_TYPE_VALUETYPE:
4090 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4091 type = mono_class_enum_basetype (t->data.klass)->type;
4094 mono_mb_emit_byte (mb, CEE_LDIND_I);
4095 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4096 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4097 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4098 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4100 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4104 g_assert_not_reached ();
4109 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4110 } else if (need_direct_wrapper) {
4111 mono_mb_emit_op (mb, CEE_CALL, method);
4113 mono_mb_emit_ldarg (mb, 3);
4114 mono_mb_emit_calli (mb, callsig);
4117 if (sig->ret->byref) {
4119 g_assert_not_reached ();
4122 switch (sig->ret->type) {
4123 case MONO_TYPE_VOID:
4127 case MONO_TYPE_BOOLEAN:
4128 case MONO_TYPE_CHAR:
4141 case MONO_TYPE_VALUETYPE:
4142 case MONO_TYPE_TYPEDBYREF:
4143 case MONO_TYPE_GENERICINST:
4144 /* box value types */
4145 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4147 case MONO_TYPE_STRING:
4148 case MONO_TYPE_CLASS:
4149 case MONO_TYPE_ARRAY:
4150 case MONO_TYPE_SZARRAY:
4151 case MONO_TYPE_OBJECT:
4155 /* The result is an IntPtr */
4156 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4159 g_assert_not_reached ();
4163 mono_mb_emit_stloc (mb, loc_res);
4165 /* Convert back nullable-byref arguments */
4166 for (i = 0; i < sig->param_count; i++) {
4167 MonoType *t = sig->params [i];
4170 * Box the result and put it back into the array, the caller will have
4171 * to obtain it from there.
4173 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4174 mono_mb_emit_ldarg (mb, 1);
4175 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4176 mono_mb_emit_byte (mb, CEE_ADD);
4178 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4179 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4181 mono_mb_emit_byte (mb, CEE_STIND_REF);
4185 g_free (tmp_nullable_locals);
4189 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
4190 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4191 gboolean virtual_, gboolean need_direct_wrapper)
4194 MonoExceptionClause *clause;
4195 int loc_res, loc_exc;
4197 /* The wrapper looks like this:
4203 * } catch (Exception e) {
4211 /* allocate local 0 (object) tmp */
4212 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4213 /* allocate local 1 (object) exc */
4214 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4216 /* *exc is assumed to be initialized to NULL by the caller */
4218 mono_mb_emit_byte (mb, CEE_LDARG_2);
4219 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4224 labels [1] = mono_mb_get_label (mb);
4225 emit_thread_force_interrupt_checkpoint (mb);
4226 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4228 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4230 /* Add a try clause around the call */
4231 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
4232 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4233 clause->data.catch_class = mono_defaults.exception_class;
4234 clause->try_offset = labels [1];
4235 clause->try_len = mono_mb_get_label (mb) - labels [1];
4237 clause->handler_offset = mono_mb_get_label (mb);
4240 mono_mb_emit_stloc (mb, loc_exc);
4241 mono_mb_emit_byte (mb, CEE_LDARG_2);
4242 mono_mb_emit_ldloc (mb, loc_exc);
4243 mono_mb_emit_byte (mb, CEE_STIND_REF);
4245 mono_mb_emit_branch (mb, CEE_LEAVE);
4247 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4249 mono_mb_set_clauses (mb, 1, clause);
4251 mono_mb_patch_branch (mb, labels [2]);
4252 mono_mb_emit_ldloc (mb, loc_res);
4253 mono_mb_emit_byte (mb, CEE_RET);
4258 mono_mb_patch_branch (mb, labels [0]);
4259 emit_thread_force_interrupt_checkpoint (mb);
4260 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4262 mono_mb_emit_ldloc (mb, 0);
4263 mono_mb_emit_byte (mb, CEE_RET);
4268 * mono_marshal_get_runtime_invoke:
4269 * Generates IL code for the runtime invoke function:
4271 * <code>MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)</code>
4273 * We also catch exceptions if \p exc is not NULL.
4274 * If \p virtual is TRUE, then \p method is invoked virtually on \p this. This is useful since
4275 * it means that the compiled code for \p method does not have to be looked up
4276 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4277 * its \p method argument.
4280 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4282 MonoMethodSignature *sig, *csig, *callsig;
4283 MonoMethodBuilder *mb;
4284 GHashTable *cache = NULL;
4285 MonoClass *target_klass;
4286 MonoMethod *res = NULL;
4287 static MonoMethodSignature *cctor_signature = NULL;
4288 static MonoMethodSignature *finalize_signature = NULL;
4290 const char *param_names [16];
4291 gboolean need_direct_wrapper = FALSE;
4296 if (!cctor_signature) {
4297 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4298 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4300 if (!finalize_signature) {
4301 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4302 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4303 finalize_signature->hasthis = 1;
4307 need_direct_wrapper = TRUE;
4310 * Use a separate cache indexed by methods to speed things up and to avoid the
4311 * boundless mempool growth caused by the signature_dup stuff below.
4314 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4316 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4318 res = mono_marshal_find_in_cache (cache, method);
4322 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4323 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4325 * Array Get/Set/Address methods. The JIT implements them using inline code
4326 * so we need to create an invoke wrapper which calls the method directly.
4328 need_direct_wrapper = TRUE;
4331 if (method->string_ctor) {
4332 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4334 callsig = add_string_ctor_signature (method);
4335 /* Can't share this as we push a string as this */
4336 need_direct_wrapper = TRUE;
4338 if (method_is_dynamic (method))
4339 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4341 callsig = mono_method_signature (method);
4344 sig = mono_method_signature (method);
4346 target_klass = get_wrapper_target_class (method->klass->image);
4348 /* Try to share wrappers for non-corlib methods with simple signatures */
4349 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4350 callsig = cctor_signature;
4351 target_klass = mono_defaults.object_class;
4352 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4353 callsig = finalize_signature;
4354 target_klass = mono_defaults.object_class;
4357 if (need_direct_wrapper) {
4358 /* Already searched at the start */
4360 MonoMethodSignature *tmp_sig;
4362 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4363 GHashTable **cache_table = NULL;
4365 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4366 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4368 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4370 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4371 (GCompareFunc)runtime_invoke_signature_equal);
4373 /* from mono_marshal_find_in_cache */
4374 mono_marshal_lock ();
4375 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4376 mono_marshal_unlock ();
4383 /* Make a copy of the signature from the image mempool */
4385 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4389 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4391 csig->ret = &mono_defaults.object_class->byval_arg;
4392 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4393 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4395 csig->params [0] = &mono_defaults.object_class->byval_arg;
4396 csig->params [1] = &mono_defaults.int_class->byval_arg;
4397 csig->params [2] = &mono_defaults.int_class->byval_arg;
4398 csig->params [3] = &mono_defaults.int_class->byval_arg;
4401 /* This is called from runtime code so it has to be cdecl */
4402 csig->call_convention = MONO_CALL_C;
4405 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4406 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4410 param_names [0] = "this";
4411 param_names [1] = "params";
4412 param_names [2] = "exc";
4413 param_names [3] = "method";
4414 mono_mb_set_param_names (mb, param_names);
4416 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4419 if (need_direct_wrapper) {
4421 mb->skip_visibility = 1;
4423 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4424 info->d.runtime_invoke.method = method;
4425 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4427 /* taken from mono_mb_create_and_cache */
4428 mono_marshal_lock ();
4429 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4430 mono_marshal_unlock ();
4432 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4433 info->d.runtime_invoke.sig = callsig;
4435 /* Somebody may have created it before us */
4438 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4440 mono_marshal_lock ();
4441 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4443 GHashTable *direct_cache;
4445 g_hash_table_insert (cache, callsig, res);
4446 /* Can't insert it into wrapper_hash since the key is a signature */
4447 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4449 g_hash_table_insert (direct_cache, method, res);
4451 mono_free_method (newm);
4453 mono_marshal_unlock ();
4456 /* end mono_mb_create_and_cache */
4465 * mono_marshal_get_runtime_invoke_dynamic:
4467 * Return a method which can be used to invoke managed methods from native code
4469 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4470 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4471 * ARGS should point to an architecture specific structure containing
4472 * the arguments and space for the return value.
4473 * The other arguments are the same as for runtime_invoke (), except that
4474 * ARGS should contain the this argument too.
4475 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4476 * is only one copy of it, which is useful in full-aot.
4479 mono_marshal_get_runtime_invoke_dynamic (void)
4481 static MonoMethod *method;
4482 MonoMethodSignature *csig;
4483 MonoExceptionClause *clause;
4484 MonoMethodBuilder *mb;
4492 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4494 csig->ret = &mono_defaults.void_class->byval_arg;
4495 csig->params [0] = &mono_defaults.int_class->byval_arg;
4496 csig->params [1] = &mono_defaults.int_class->byval_arg;
4497 csig->params [2] = &mono_defaults.int_class->byval_arg;
4498 csig->params [3] = &mono_defaults.int_class->byval_arg;
4500 name = g_strdup ("runtime_invoke_dynamic");
4501 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4505 /* allocate local 0 (object) tmp */
4506 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4507 /* allocate local 1 (object) exc */
4508 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4510 /* cond set *exc to null */
4511 mono_mb_emit_byte (mb, CEE_LDARG_1);
4512 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4513 mono_mb_emit_byte (mb, 3);
4514 mono_mb_emit_byte (mb, CEE_LDARG_1);
4515 mono_mb_emit_byte (mb, CEE_LDNULL);
4516 mono_mb_emit_byte (mb, CEE_STIND_REF);
4518 emit_thread_force_interrupt_checkpoint (mb);
4520 mono_mb_emit_byte (mb, CEE_LDARG_0);
4521 mono_mb_emit_byte (mb, CEE_LDARG_2);
4522 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4523 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4525 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4527 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4528 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4529 clause->try_len = mono_mb_get_label (mb);
4532 clause->data.filter_offset = mono_mb_get_label (mb);
4534 mono_mb_emit_byte (mb, CEE_POP);
4535 mono_mb_emit_byte (mb, CEE_LDARG_1);
4536 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4537 mono_mb_emit_byte (mb, CEE_PREFIX1);
4538 mono_mb_emit_byte (mb, CEE_CGT_UN);
4539 mono_mb_emit_byte (mb, CEE_PREFIX1);
4540 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4542 clause->handler_offset = mono_mb_get_label (mb);
4545 /* store exception */
4546 mono_mb_emit_stloc (mb, 1);
4548 mono_mb_emit_byte (mb, CEE_LDARG_1);
4549 mono_mb_emit_ldloc (mb, 1);
4550 mono_mb_emit_byte (mb, CEE_STIND_REF);
4552 mono_mb_emit_byte (mb, CEE_LDNULL);
4553 mono_mb_emit_stloc (mb, 0);
4555 mono_mb_emit_branch (mb, CEE_LEAVE);
4557 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4559 mono_mb_set_clauses (mb, 1, clause);
4562 mono_mb_patch_branch (mb, pos);
4563 //mono_mb_emit_ldloc (mb, 0);
4564 mono_mb_emit_byte (mb, CEE_RET);
4565 #endif /* DISABLE_JIT */
4567 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4569 mono_marshal_lock ();
4570 /* double-checked locking */
4572 method = mono_mb_create (mb, csig, 16, info);
4574 mono_marshal_unlock ();
4582 * mono_marshal_get_runtime_invoke_for_sig:
4584 * Return a runtime invoke wrapper for a given signature.
4587 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4589 MonoMethodSignature *csig, *callsig;
4590 MonoMethodBuilder *mb;
4592 GHashTable *cache = NULL;
4593 GHashTable **cache_table = NULL;
4594 MonoMethod *res = NULL;
4596 const char *param_names [16];
4599 /* A simplified version of mono_marshal_get_runtime_invoke */
4601 image = mono_defaults.corlib;
4603 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4605 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4607 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4608 (GCompareFunc)runtime_invoke_signature_equal);
4610 /* from mono_marshal_find_in_cache */
4611 mono_marshal_lock ();
4612 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4613 mono_marshal_unlock ();
4620 /* Make a copy of the signature from the image mempool */
4621 callsig = mono_metadata_signature_dup_full (image, callsig);
4623 csig = mono_metadata_signature_alloc (image, 4);
4624 csig->ret = &mono_defaults.object_class->byval_arg;
4625 csig->params [0] = &mono_defaults.object_class->byval_arg;
4626 csig->params [1] = &mono_defaults.int_class->byval_arg;
4627 csig->params [2] = &mono_defaults.int_class->byval_arg;
4628 csig->params [3] = &mono_defaults.int_class->byval_arg;
4631 /* This is called from runtime code so it has to be cdecl */
4632 csig->call_convention = MONO_CALL_C;
4635 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4636 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4640 param_names [0] = "this";
4641 param_names [1] = "params";
4642 param_names [2] = "exc";
4643 param_names [3] = "method";
4644 mono_mb_set_param_names (mb, param_names);
4646 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4649 /* taken from mono_mb_create_and_cache */
4650 mono_marshal_lock ();
4651 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4652 mono_marshal_unlock ();
4654 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4655 info->d.runtime_invoke.sig = callsig;
4657 /* Somebody may have created it before us */
4660 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4662 mono_marshal_lock ();
4663 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4666 g_hash_table_insert (cache, callsig, res);
4668 mono_free_method (newm);
4670 mono_marshal_unlock ();
4673 /* end mono_mb_create_and_cache */
4682 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4684 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4685 klass->name_space, klass->name);
4687 mono_mb_emit_exception_marshal_directive (mb, msg);
4692 * mono_marshal_get_icall_wrapper:
4693 * Generates IL code for the icall wrapper. The generated method
4694 * calls the unmanaged code in \p func.
4697 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4699 MonoMethodSignature *csig, *csig2;
4700 MonoMethodBuilder *mb;
4705 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4706 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4709 g_assert (sig->pinvoke);
4711 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4713 mb->method->save_lmf = 1;
4715 /* Add an explicit this argument */
4717 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4719 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4723 mono_mb_emit_byte (mb, CEE_LDARG_0);
4725 for (i = 0; i < sig->param_count; i++)
4726 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4728 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4729 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4730 mono_mb_emit_calli (mb, csig2);
4731 if (check_exceptions)
4732 emit_thread_interrupt_checkpoint (mb);
4733 mono_mb_emit_byte (mb, CEE_RET);
4736 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4738 if (csig->call_convention == MONO_CALL_VARARG)
4739 csig->call_convention = 0;
4741 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4742 info->d.icall.func = (gpointer)func;
4743 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4750 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4751 MonoMarshalSpec *spec,
4752 int conv_arg, MonoType **conv_arg_type,
4753 MarshalAction action)
4756 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4757 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4763 static MonoClass *ICustomMarshaler = NULL;
4764 static MonoMethod *cleanup_native, *cleanup_managed;
4765 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4766 MonoMethod *get_instance = NULL;
4767 MonoMethodBuilder *mb = m->mb;
4768 char *exception_msg = NULL;
4772 if (!ICustomMarshaler) {
4773 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4775 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4776 goto handle_exception;
4779 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4780 g_assert (cleanup_native);
4781 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4782 g_assert (cleanup_managed);
4783 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4784 g_assert (marshal_managed_to_native);
4785 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4786 g_assert (marshal_native_to_managed);
4788 mono_memory_barrier ();
4789 ICustomMarshaler = klass;
4792 if (spec->data.custom_data.image)
4793 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4795 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4796 g_assert (mtype != NULL);
4797 mono_error_assert_ok (&error);
4798 mklass = mono_class_from_mono_type (mtype);
4799 g_assert (mklass != NULL);
4801 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4802 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4804 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4806 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4807 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4808 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4809 (get_sig->params [0]->type != MONO_TYPE_STRING))
4810 get_instance = NULL;
4814 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);
4817 /* Throw exception and emit compensation code if neccesary */
4818 if (exception_msg) {
4820 case MARSHAL_ACTION_CONV_IN:
4821 case MARSHAL_ACTION_CONV_RESULT:
4822 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4823 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4824 mono_mb_emit_byte (mb, CEE_POP);
4826 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4829 case MARSHAL_ACTION_PUSH:
4830 mono_mb_emit_byte (mb, CEE_LDNULL);
4838 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4839 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4842 case MARSHAL_ACTION_CONV_IN:
4844 case MONO_TYPE_CLASS:
4845 case MONO_TYPE_OBJECT:
4846 case MONO_TYPE_STRING:
4847 case MONO_TYPE_ARRAY:
4848 case MONO_TYPE_SZARRAY:
4849 case MONO_TYPE_VALUETYPE:
4853 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4854 g_assert_not_reached ();
4858 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4860 mono_mb_emit_byte (mb, CEE_LDNULL);
4861 mono_mb_emit_stloc (mb, conv_arg);
4863 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4866 /* Minic MS.NET behavior */
4867 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4870 /* Check for null */
4871 mono_mb_emit_ldarg (mb, argnum);
4873 mono_mb_emit_byte (mb, CEE_LDIND_I);
4874 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4876 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4878 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4880 mono_mb_emit_ldarg (mb, argnum);
4882 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4884 if (t->type == MONO_TYPE_VALUETYPE) {
4886 * Since we can't determine the type of the argument, we
4887 * will assume the unmanaged function takes a pointer.
4889 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4891 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4894 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4895 mono_mb_emit_stloc (mb, conv_arg);
4897 mono_mb_patch_branch (mb, pos2);
4900 case MARSHAL_ACTION_CONV_OUT:
4901 /* Check for null */
4902 mono_mb_emit_ldloc (mb, conv_arg);
4903 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4906 mono_mb_emit_ldarg (mb, argnum);
4908 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4910 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4912 mono_mb_emit_ldloc (mb, conv_arg);
4913 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4914 mono_mb_emit_byte (mb, CEE_STIND_REF);
4915 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4916 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4918 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4920 mono_mb_emit_ldloc (mb, conv_arg);
4921 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4923 /* We have nowhere to store the result */
4924 mono_mb_emit_byte (mb, CEE_POP);
4927 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4929 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4931 mono_mb_emit_ldloc (mb, conv_arg);
4933 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4935 mono_mb_patch_branch (mb, pos2);
4938 case MARSHAL_ACTION_PUSH:
4940 mono_mb_emit_ldloc_addr (mb, conv_arg);
4942 mono_mb_emit_ldloc (mb, conv_arg);
4945 case MARSHAL_ACTION_CONV_RESULT:
4946 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4948 mono_mb_emit_stloc (mb, 3);
4950 mono_mb_emit_ldloc (mb, 3);
4951 mono_mb_emit_stloc (mb, loc1);
4953 /* Check for null */
4954 mono_mb_emit_ldloc (mb, 3);
4955 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4957 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4959 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4960 mono_mb_emit_byte (mb, CEE_DUP);
4962 mono_mb_emit_ldloc (mb, 3);
4963 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4964 mono_mb_emit_stloc (mb, 3);
4966 mono_mb_emit_ldloc (mb, loc1);
4967 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4969 mono_mb_patch_branch (mb, pos2);
4972 case MARSHAL_ACTION_MANAGED_CONV_IN:
4973 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4975 mono_mb_emit_byte (mb, CEE_LDNULL);
4976 mono_mb_emit_stloc (mb, conv_arg);
4978 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4981 /* Check for null */
4982 mono_mb_emit_ldarg (mb, argnum);
4984 mono_mb_emit_byte (mb, CEE_LDIND_I);
4985 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4987 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4988 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4990 mono_mb_emit_ldarg (mb, argnum);
4992 mono_mb_emit_byte (mb, CEE_LDIND_I);
4994 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4995 mono_mb_emit_stloc (mb, conv_arg);
4997 mono_mb_patch_branch (mb, pos2);
5000 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5001 g_assert (!t->byref);
5003 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5005 mono_mb_emit_stloc (mb, 3);
5007 mono_mb_emit_ldloc (mb, 3);
5008 mono_mb_emit_stloc (mb, loc1);
5010 /* Check for null */
5011 mono_mb_emit_ldloc (mb, 3);
5012 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5014 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5015 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5016 mono_mb_emit_byte (mb, CEE_DUP);
5018 mono_mb_emit_ldloc (mb, 3);
5019 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5020 mono_mb_emit_stloc (mb, 3);
5022 mono_mb_emit_ldloc (mb, loc1);
5023 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5025 mono_mb_patch_branch (mb, pos2);
5028 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5030 /* Check for null */
5031 mono_mb_emit_ldloc (mb, conv_arg);
5032 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5035 mono_mb_emit_ldarg (mb, argnum);
5037 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5039 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5041 mono_mb_emit_ldloc (mb, conv_arg);
5042 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5043 mono_mb_emit_byte (mb, CEE_STIND_I);
5046 /* Call CleanUpManagedData */
5047 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5049 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5051 mono_mb_emit_ldloc (mb, conv_arg);
5052 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5054 mono_mb_patch_branch (mb, pos2);
5058 g_assert_not_reached ();
5066 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5067 MonoMarshalSpec *spec,
5068 int conv_arg, MonoType **conv_arg_type,
5069 MarshalAction action)
5072 MonoMethodBuilder *mb = m->mb;
5075 case MARSHAL_ACTION_CONV_IN: {
5076 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5078 g_assert (t->type == MONO_TYPE_OBJECT);
5079 g_assert (!t->byref);
5081 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5082 mono_mb_emit_ldarg (mb, argnum);
5083 mono_mb_emit_icon (mb, encoding);
5084 mono_mb_emit_icon (mb, t->attrs);
5085 mono_mb_emit_icall (mb, mono_marshal_asany);
5086 mono_mb_emit_stloc (mb, conv_arg);
5090 case MARSHAL_ACTION_PUSH:
5091 mono_mb_emit_ldloc (mb, conv_arg);
5094 case MARSHAL_ACTION_CONV_OUT: {
5095 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5097 mono_mb_emit_ldarg (mb, argnum);
5098 mono_mb_emit_ldloc (mb, conv_arg);
5099 mono_mb_emit_icon (mb, encoding);
5100 mono_mb_emit_icon (mb, t->attrs);
5101 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5106 g_assert_not_reached ();
5113 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5114 MonoMarshalSpec *spec,
5115 int conv_arg, MonoType **conv_arg_type,
5116 MarshalAction action)
5119 MonoMethodBuilder *mb = m->mb;
5120 MonoClass *klass, *date_time_class;
5123 klass = mono_class_from_mono_type (t);
5125 date_time_class = mono_class_get_date_time_class ();
5128 case MARSHAL_ACTION_CONV_IN:
5129 if (klass == date_time_class) {
5130 /* Convert it to an OLE DATE type */
5131 static MonoMethod *to_oadate;
5134 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5135 g_assert (to_oadate);
5137 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5140 mono_mb_emit_ldarg (mb, argnum);
5141 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5144 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5146 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5148 mono_mb_emit_ldarg_addr (mb, argnum);
5149 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5150 mono_mb_emit_stloc (mb, conv_arg);
5154 mono_mb_patch_branch (mb, pos);
5158 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5161 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5163 /* store the address of the source into local variable 0 */
5165 mono_mb_emit_ldarg (mb, argnum);
5167 mono_mb_emit_ldarg_addr (mb, argnum);
5169 mono_mb_emit_stloc (mb, 0);
5171 /* allocate space for the native struct and
5172 * store the address into local variable 1 (dest) */
5173 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5174 mono_mb_emit_byte (mb, CEE_PREFIX1);
5175 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5176 mono_mb_emit_stloc (mb, conv_arg);
5179 mono_mb_emit_ldloc (mb, 0);
5180 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5183 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5185 mono_mb_emit_ldloc (mb, conv_arg);
5186 mono_mb_emit_stloc (mb, 1);
5188 /* emit valuetype conversion code */
5189 emit_struct_conv (mb, klass, FALSE);
5193 mono_mb_patch_branch (mb, pos);
5196 case MARSHAL_ACTION_PUSH:
5197 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5199 g_assert (!t->byref);
5201 /* Have to change the signature since the vtype is passed byref */
5202 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5204 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5205 mono_mb_emit_ldarg_addr (mb, argnum);
5207 mono_mb_emit_ldloc (mb, conv_arg);
5211 if (klass == date_time_class) {
5213 mono_mb_emit_ldloc_addr (mb, conv_arg);
5215 mono_mb_emit_ldloc (mb, conv_arg);
5219 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5220 mono_mb_emit_ldarg (mb, argnum);
5223 mono_mb_emit_ldloc (mb, conv_arg);
5225 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5226 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5230 case MARSHAL_ACTION_CONV_OUT:
5231 if (klass == date_time_class) {
5232 /* Convert from an OLE DATE type */
5233 static MonoMethod *from_oadate;
5238 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5240 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5241 g_assert (from_oadate);
5243 mono_mb_emit_ldarg (mb, argnum);
5244 mono_mb_emit_ldloc (mb, conv_arg);
5245 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5246 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5251 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5255 /* dst = argument */
5256 mono_mb_emit_ldarg (mb, argnum);
5257 mono_mb_emit_stloc (mb, 1);
5259 mono_mb_emit_ldloc (mb, 1);
5260 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5262 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5263 /* src = tmp_locals [i] */
5264 mono_mb_emit_ldloc (mb, conv_arg);
5265 mono_mb_emit_stloc (mb, 0);
5267 /* emit valuetype conversion code */
5268 emit_struct_conv (mb, klass, TRUE);
5272 emit_struct_free (mb, klass, conv_arg);
5275 mono_mb_patch_branch (mb, pos);
5278 case MARSHAL_ACTION_CONV_RESULT:
5279 if (mono_class_is_explicit_layout (klass) || klass->blittable) {
5280 mono_mb_emit_stloc (mb, 3);
5284 /* load pointer to returned value type */
5285 g_assert (m->vtaddr_var);
5286 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5287 /* store the address of the source into local variable 0 */
5288 mono_mb_emit_stloc (mb, 0);
5290 mono_mb_emit_ldloc_addr (mb, 3);
5291 mono_mb_emit_stloc (mb, 1);
5293 /* emit valuetype conversion code */
5294 emit_struct_conv (mb, klass, TRUE);
5297 case MARSHAL_ACTION_MANAGED_CONV_IN:
5298 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5303 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5305 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5309 mono_mb_emit_ldarg (mb, argnum);
5311 mono_mb_emit_ldarg_addr (mb, argnum);
5312 mono_mb_emit_stloc (mb, 0);
5315 mono_mb_emit_ldloc (mb, 0);
5316 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5319 mono_mb_emit_ldloc_addr (mb, conv_arg);
5320 mono_mb_emit_stloc (mb, 1);
5322 /* emit valuetype conversion code */
5323 emit_struct_conv (mb, klass, TRUE);
5326 mono_mb_patch_branch (mb, pos);
5329 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5330 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5332 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5335 /* Check for null */
5336 mono_mb_emit_ldarg (mb, argnum);
5337 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5340 mono_mb_emit_ldloc_addr (mb, conv_arg);
5341 mono_mb_emit_stloc (mb, 0);
5344 mono_mb_emit_ldarg (mb, argnum);
5345 mono_mb_emit_stloc (mb, 1);
5347 /* emit valuetype conversion code */
5348 emit_struct_conv (mb, klass, FALSE);
5350 mono_mb_patch_branch (mb, pos2);
5353 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5354 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5355 mono_mb_emit_stloc (mb, 3);
5360 /* load pointer to returned value type */
5361 g_assert (m->vtaddr_var);
5362 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5364 /* store the address of the source into local variable 0 */
5365 mono_mb_emit_stloc (mb, 0);
5366 /* allocate space for the native struct and
5367 * store the address into dst_ptr */
5368 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5369 m->retobj_class = klass;
5370 g_assert (m->retobj_var);
5371 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5372 mono_mb_emit_byte (mb, CEE_CONV_I);
5373 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5374 mono_mb_emit_stloc (mb, 1);
5375 mono_mb_emit_ldloc (mb, 1);
5376 mono_mb_emit_stloc (mb, m->retobj_var);
5378 /* emit valuetype conversion code */
5379 emit_struct_conv (mb, klass, FALSE);
5383 g_assert_not_reached ();
5390 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5391 MonoMarshalSpec *spec,
5392 int conv_arg, MonoType **conv_arg_type,
5393 MarshalAction action)
5397 case MARSHAL_ACTION_CONV_IN:
5398 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5400 case MARSHAL_ACTION_MANAGED_CONV_IN:
5401 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5405 MonoMethodBuilder *mb = m->mb;
5406 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5407 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5411 case MARSHAL_ACTION_CONV_IN:
5412 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5413 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5416 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5419 mono_mb_emit_ldarg (mb, argnum);
5420 mono_mb_emit_byte (mb, CEE_LDIND_I);
5422 mono_mb_emit_ldarg (mb, argnum);
5425 if (conv == MONO_MARSHAL_CONV_INVALID) {
5426 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5427 mono_mb_emit_exception_marshal_directive (mb, msg);
5429 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5431 mono_mb_emit_stloc (mb, conv_arg);
5435 case MARSHAL_ACTION_CONV_OUT:
5436 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5437 if (conv == MONO_MARSHAL_CONV_INVALID) {
5438 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5439 mono_mb_emit_exception_marshal_directive (mb, msg);
5443 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5444 static MonoMethod *m;
5447 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5452 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5453 mono_mb_emit_exception_marshal_directive (mb, msg);
5458 * Have to allocate a new string with the same length as the original, and
5459 * copy the contents of the buffer pointed to by CONV_ARG into it.
5461 g_assert (t->byref);
5462 mono_mb_emit_ldarg (mb, argnum);
5463 mono_mb_emit_ldloc (mb, conv_arg);
5464 mono_mb_emit_ldarg (mb, argnum);
5465 mono_mb_emit_byte (mb, CEE_LDIND_I);
5466 mono_mb_emit_managed_call (mb, m, NULL);
5467 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5468 mono_mb_emit_byte (mb, CEE_STIND_REF);
5469 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5471 mono_mb_emit_ldarg (mb, argnum);
5472 mono_mb_emit_ldloc (mb, conv_arg);
5473 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5474 mono_mb_emit_byte (mb, stind_op);
5479 mono_mb_emit_ldloc (mb, conv_arg);
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);
5487 case MARSHAL_ACTION_PUSH:
5488 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5489 mono_mb_emit_ldloc_addr (mb, conv_arg);
5491 mono_mb_emit_ldloc (mb, conv_arg);
5494 case MARSHAL_ACTION_CONV_RESULT:
5495 mono_mb_emit_stloc (mb, 0);
5497 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5498 if (conv == MONO_MARSHAL_CONV_INVALID) {
5499 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5500 mono_mb_emit_exception_marshal_directive (mb, msg);
5504 mono_mb_emit_ldloc (mb, 0);
5505 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5506 mono_mb_emit_stloc (mb, 3);
5508 /* free the string */
5509 mono_mb_emit_ldloc (mb, 0);
5510 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5511 mono_mb_emit_icall (mb, mono_free_bstr);
5513 mono_mb_emit_icall (mb, mono_marshal_free);
5516 case MARSHAL_ACTION_MANAGED_CONV_IN:
5517 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5519 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5522 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5526 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5527 if (conv == MONO_MARSHAL_CONV_INVALID) {
5528 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5529 mono_mb_emit_exception_marshal_directive (mb, msg);
5533 mono_mb_emit_ldarg (mb, argnum);
5535 mono_mb_emit_byte (mb, CEE_LDIND_I);
5536 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5537 mono_mb_emit_stloc (mb, conv_arg);
5540 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5544 mono_mb_emit_ldarg (mb, argnum);
5545 mono_mb_emit_ldloc (mb, conv_arg);
5546 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5547 mono_mb_emit_byte (mb, stind_op);
5552 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5553 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5554 /* We need to make a copy so the caller is able to free it */
5555 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5557 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5558 mono_mb_emit_stloc (mb, 3);
5562 g_assert_not_reached ();
5570 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5571 MonoMarshalSpec *spec, int conv_arg,
5572 MonoType **conv_arg_type, MarshalAction action)
5575 if (action == MARSHAL_ACTION_CONV_IN)
5576 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5578 MonoMethodBuilder *mb = m->mb;
5581 case MARSHAL_ACTION_CONV_IN: {
5582 MonoType *intptr_type;
5583 int dar_release_slot, pos;
5585 intptr_type = &mono_defaults.int_class->byval_arg;
5586 conv_arg = mono_mb_add_local (mb, intptr_type);
5587 *conv_arg_type = intptr_type;
5589 if (!sh_dangerous_add_ref)
5590 init_safe_handle ();
5592 mono_mb_emit_ldarg (mb, argnum);
5593 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5594 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5596 mono_mb_patch_branch (mb, pos);
5599 * My tests in show that ref SafeHandles are not really
5600 * passed as ref objects. Instead a NULL is passed as the
5603 mono_mb_emit_icon (mb, 0);
5604 mono_mb_emit_stloc (mb, conv_arg);
5608 /* Create local to hold the ref parameter to DangerousAddRef */
5609 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5611 /* set release = false; */
5612 mono_mb_emit_icon (mb, 0);
5613 mono_mb_emit_stloc (mb, dar_release_slot);
5615 /* safehandle.DangerousAddRef (ref release) */
5616 mono_mb_emit_ldarg (mb, argnum);
5617 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5618 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5620 /* Pull the handle field from SafeHandle */
5621 mono_mb_emit_ldarg (mb, argnum);
5622 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5623 mono_mb_emit_byte (mb, CEE_LDIND_I);
5624 mono_mb_emit_stloc (mb, conv_arg);
5629 case MARSHAL_ACTION_PUSH:
5631 mono_mb_emit_ldloc_addr (mb, conv_arg);
5633 mono_mb_emit_ldloc (mb, conv_arg);
5636 case MARSHAL_ACTION_CONV_OUT: {
5637 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5638 int dar_release_slot = conv_arg + 1;
5641 if (!sh_dangerous_release)
5642 init_safe_handle ();
5648 * My tests indicate that ref SafeHandles parameters are not actually
5649 * passed by ref, but instead a new Handle is created regardless of
5650 * whether a change happens in the unmanaged side.
5652 * Also, the Handle is created before calling into unmanaged code,
5653 * but we do not support that mechanism (getting to the original
5654 * handle) and it makes no difference where we create this
5656 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5658 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5661 /* refval = new SafeHandleDerived ()*/
5662 mono_mb_emit_ldarg (mb, argnum);
5663 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5664 mono_mb_emit_byte (mb, CEE_STIND_REF);
5666 /* refval.handle = returned_handle */
5667 mono_mb_emit_ldarg (mb, argnum);
5668 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5669 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5670 mono_mb_emit_ldloc (mb, conv_arg);
5671 mono_mb_emit_byte (mb, CEE_STIND_I);
5673 mono_mb_emit_ldloc (mb, dar_release_slot);
5674 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5675 mono_mb_emit_ldarg (mb, argnum);
5676 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5677 mono_mb_patch_branch (mb, label_next);
5682 case MARSHAL_ACTION_CONV_RESULT: {
5683 MonoMethod *ctor = NULL;
5684 int intptr_handle_slot;
5686 if (mono_class_is_abstract (t->data.klass)) {
5687 mono_mb_emit_byte (mb, CEE_POP);
5688 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5692 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5694 mono_mb_emit_byte (mb, CEE_POP);
5695 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5698 /* Store the IntPtr results into a local */
5699 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5700 mono_mb_emit_stloc (mb, intptr_handle_slot);
5702 /* Create return value */
5703 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5704 mono_mb_emit_stloc (mb, 3);
5706 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5707 mono_mb_emit_ldloc (mb, 3);
5708 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5709 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5710 mono_mb_emit_byte (mb, CEE_STIND_I);
5714 case MARSHAL_ACTION_MANAGED_CONV_IN:
5715 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5718 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5719 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5722 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5723 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5726 printf ("Unhandled case for MarshalAction: %d\n", action);
5734 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5735 MonoMarshalSpec *spec, int conv_arg,
5736 MonoType **conv_arg_type, MarshalAction action)
5739 if (action == MARSHAL_ACTION_CONV_IN)
5740 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5742 MonoMethodBuilder *mb = m->mb;
5745 case MARSHAL_ACTION_CONV_IN: {
5746 MonoType *intptr_type;
5748 intptr_type = &mono_defaults.int_class->byval_arg;
5749 conv_arg = mono_mb_add_local (mb, intptr_type);
5750 *conv_arg_type = intptr_type;
5753 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5754 mono_mb_emit_exception_marshal_directive (mb, msg);
5757 mono_mb_emit_ldarg_addr (mb, argnum);
5758 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5759 mono_mb_emit_byte (mb, CEE_ADD);
5760 mono_mb_emit_byte (mb, CEE_LDIND_I);
5761 mono_mb_emit_stloc (mb, conv_arg);
5765 case MARSHAL_ACTION_PUSH:
5766 mono_mb_emit_ldloc (mb, conv_arg);
5769 case MARSHAL_ACTION_CONV_OUT: {
5770 /* no resource release required */
5774 case MARSHAL_ACTION_CONV_RESULT: {
5775 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5776 mono_mb_emit_exception_marshal_directive (mb, msg);
5780 case MARSHAL_ACTION_MANAGED_CONV_IN:
5781 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5784 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5785 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5788 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5789 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5792 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5800 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5801 MonoMarshalSpec *spec,
5802 int conv_arg, MonoType **conv_arg_type,
5803 MarshalAction action)
5806 if (action == MARSHAL_ACTION_CONV_IN)
5807 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5809 MonoMethodBuilder *mb = m->mb;
5810 MonoClass *klass = mono_class_from_mono_type (t);
5814 case MARSHAL_ACTION_CONV_IN:
5815 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5816 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5818 m->orig_conv_args [argnum] = 0;
5820 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5821 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5822 mono_mb_emit_exception_marshal_directive (mb, msg);
5826 if (klass->delegate) {
5828 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5829 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5830 mono_mb_emit_exception_marshal_directive (mb, msg);
5832 mono_mb_emit_byte (mb, CEE_LDNULL);
5833 mono_mb_emit_stloc (mb, conv_arg);
5835 mono_mb_emit_ldarg (mb, argnum);
5836 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5837 mono_mb_emit_stloc (mb, conv_arg);
5839 } else if (klass == mono_defaults.stringbuilder_class) {
5840 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5841 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5845 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5846 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5847 mono_mb_emit_exception_marshal_directive (mb, msg);
5853 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5856 if (conv == MONO_MARSHAL_CONV_INVALID) {
5857 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5858 mono_mb_emit_exception_marshal_directive (mb, msg);
5862 mono_mb_emit_ldarg (mb, argnum);
5864 mono_mb_emit_byte (mb, CEE_LDIND_I);
5866 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5867 mono_mb_emit_stloc (mb, conv_arg);
5868 } else if (klass->blittable) {
5869 mono_mb_emit_byte (mb, CEE_LDNULL);
5870 mono_mb_emit_stloc (mb, conv_arg);
5872 mono_mb_emit_ldarg (mb, argnum);
5873 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5875 mono_mb_emit_ldarg (mb, argnum);
5876 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5877 mono_mb_emit_stloc (mb, conv_arg);
5879 mono_mb_patch_branch (mb, pos);
5882 mono_mb_emit_byte (mb, CEE_LDNULL);
5883 mono_mb_emit_stloc (mb, conv_arg);
5886 /* we dont need any conversions for out parameters */
5887 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5890 mono_mb_emit_ldarg (mb, argnum);
5891 mono_mb_emit_byte (mb, CEE_LDIND_I);
5894 mono_mb_emit_ldarg (mb, argnum);
5895 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5896 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5899 /* store the address of the source into local variable 0 */
5900 mono_mb_emit_stloc (mb, 0);
5901 mono_mb_emit_ldloc (mb, 0);
5902 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5904 /* allocate space for the native struct and store the address */
5905 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5906 mono_mb_emit_byte (mb, CEE_PREFIX1);
5907 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5908 mono_mb_emit_stloc (mb, conv_arg);
5911 /* Need to store the original buffer so we can free it later */
5912 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5913 mono_mb_emit_ldloc (mb, conv_arg);
5914 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5917 /* set the src_ptr */
5918 mono_mb_emit_ldloc (mb, 0);
5919 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5920 mono_mb_emit_stloc (mb, 0);
5923 mono_mb_emit_ldloc (mb, conv_arg);
5924 mono_mb_emit_stloc (mb, 1);
5926 /* emit valuetype conversion code */
5927 emit_struct_conv (mb, klass, FALSE);
5929 mono_mb_patch_branch (mb, pos);
5933 case MARSHAL_ACTION_CONV_OUT:
5934 if (klass == mono_defaults.stringbuilder_class) {
5936 MonoMarshalNative encoding;
5937 MonoMarshalConv conv;
5939 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5940 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5942 g_assert (encoding != -1);
5945 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5949 mono_mb_emit_ldarg (mb, argnum);
5950 mono_mb_emit_ldloc (mb, conv_arg);
5953 case MONO_NATIVE_LPWSTR:
5954 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5956 case MONO_NATIVE_LPSTR:
5957 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5959 case MONO_NATIVE_UTF8STR:
5960 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5963 g_assert_not_reached ();
5966 mono_mb_emit_byte (mb, CEE_STIND_REF);
5968 mono_mb_emit_ldarg (mb, argnum);
5969 mono_mb_emit_ldloc (mb, conv_arg);
5971 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5975 mono_mb_emit_ldloc (mb, conv_arg);
5976 mono_mb_emit_icall (mb, mono_marshal_free);
5981 if (klass->delegate) {
5983 mono_mb_emit_ldarg (mb, argnum);
5984 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5985 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5986 mono_mb_emit_ldloc (mb, conv_arg);
5987 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5988 mono_mb_emit_byte (mb, CEE_STIND_REF);
5993 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5994 /* allocate a new object */
5995 mono_mb_emit_ldarg (mb, argnum);
5996 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5997 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5998 mono_mb_emit_byte (mb, CEE_STIND_REF);
6001 /* dst = *argument */
6002 mono_mb_emit_ldarg (mb, argnum);
6005 mono_mb_emit_byte (mb, CEE_LDIND_I);
6007 mono_mb_emit_stloc (mb, 1);
6009 mono_mb_emit_ldloc (mb, 1);
6010 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6012 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6013 mono_mb_emit_ldloc (mb, 1);
6014 mono_mb_emit_icon (mb, sizeof (MonoObject));
6015 mono_mb_emit_byte (mb, CEE_ADD);
6016 mono_mb_emit_stloc (mb, 1);
6018 /* src = tmp_locals [i] */
6019 mono_mb_emit_ldloc (mb, conv_arg);
6020 mono_mb_emit_stloc (mb, 0);
6022 /* emit valuetype conversion code */
6023 emit_struct_conv (mb, klass, TRUE);
6025 /* Free the structure returned by the native code */
6026 emit_struct_free (mb, klass, conv_arg);
6028 if (m->orig_conv_args [argnum]) {
6030 * If the native function changed the pointer, then free
6031 * the original structure plus the new pointer.
6033 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6034 mono_mb_emit_ldloc (mb, conv_arg);
6035 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6037 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6038 g_assert (m->orig_conv_args [argnum]);
6040 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6043 mono_mb_emit_ldloc (mb, conv_arg);
6044 mono_mb_emit_icall (mb, mono_marshal_free);
6046 mono_mb_patch_branch (mb, pos2);
6050 /* Free the original structure passed to native code */
6051 emit_struct_free (mb, klass, conv_arg);
6053 mono_mb_patch_branch (mb, pos);
6056 case MARSHAL_ACTION_PUSH:
6058 mono_mb_emit_ldloc_addr (mb, conv_arg);
6060 mono_mb_emit_ldloc (mb, conv_arg);
6063 case MARSHAL_ACTION_CONV_RESULT:
6064 if (klass->delegate) {
6065 g_assert (!t->byref);
6066 mono_mb_emit_stloc (mb, 0);
6067 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6068 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6069 mono_mb_emit_ldloc (mb, 0);
6070 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6071 mono_mb_emit_stloc (mb, 3);
6072 } else if (klass == mono_defaults.stringbuilder_class){
6076 mono_mb_emit_stloc (mb, 0);
6078 /* Make a copy since emit_conv modifies local 0 */
6079 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6080 mono_mb_emit_ldloc (mb, 0);
6081 mono_mb_emit_stloc (mb, loc);
6083 mono_mb_emit_byte (mb, CEE_LDNULL);
6084 mono_mb_emit_stloc (mb, 3);
6086 mono_mb_emit_ldloc (mb, 0);
6087 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6089 /* allocate result object */
6091 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6092 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6093 mono_mb_emit_stloc (mb, 3);
6097 mono_mb_emit_ldloc (mb, 3);
6098 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6099 mono_mb_emit_stloc (mb, 1);
6101 /* emit conversion code */
6102 emit_struct_conv (mb, klass, TRUE);
6104 emit_struct_free (mb, klass, loc);
6106 /* Free the pointer allocated by unmanaged code */
6107 mono_mb_emit_ldloc (mb, loc);
6108 mono_mb_emit_icall (mb, mono_marshal_free);
6109 mono_mb_patch_branch (mb, pos);
6113 case MARSHAL_ACTION_MANAGED_CONV_IN:
6114 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6116 if (klass->delegate) {
6117 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6118 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6119 mono_mb_emit_ldarg (mb, argnum);
6121 mono_mb_emit_byte (mb, CEE_LDIND_I);
6122 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6123 mono_mb_emit_stloc (mb, conv_arg);
6127 if (klass == mono_defaults.stringbuilder_class) {
6128 MonoMarshalNative encoding;
6130 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6133 g_assert (encoding == MONO_NATIVE_LPSTR || encoding == MONO_NATIVE_UTF8STR);
6135 g_assert (!t->byref);
6136 g_assert (encoding != -1);
6138 mono_mb_emit_ldarg (mb, argnum);
6139 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6140 mono_mb_emit_stloc (mb, conv_arg);
6144 /* The class can not have an automatic layout */
6145 if (mono_class_is_auto_layout (klass)) {
6146 mono_mb_emit_auto_layout_exception (mb, klass);
6150 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6151 mono_mb_emit_byte (mb, CEE_LDNULL);
6152 mono_mb_emit_stloc (mb, conv_arg);
6157 mono_mb_emit_ldarg (mb, argnum);
6161 /* Check for NULL and raise an exception */
6162 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6164 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6166 mono_mb_patch_branch (mb, pos2);
6167 mono_mb_emit_ldarg (mb, argnum);
6168 mono_mb_emit_byte (mb, CEE_LDIND_I);
6171 mono_mb_emit_stloc (mb, 0);
6173 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6174 mono_mb_emit_stloc (mb, conv_arg);
6176 mono_mb_emit_ldloc (mb, 0);
6177 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6179 /* Create and set dst */
6180 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6181 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6182 mono_mb_emit_stloc (mb, conv_arg);
6183 mono_mb_emit_ldloc (mb, conv_arg);
6184 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6185 mono_mb_emit_stloc (mb, 1);
6187 /* emit valuetype conversion code */
6188 emit_struct_conv (mb, klass, TRUE);
6190 mono_mb_patch_branch (mb, pos);
6193 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6194 if (klass->delegate) {
6197 mono_mb_emit_ldarg (mb, argnum);
6198 mono_mb_emit_ldloc (mb, conv_arg);
6199 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
6200 mono_mb_emit_byte (mb, stind_op);
6206 /* Check for null */
6207 mono_mb_emit_ldloc (mb, conv_arg);
6208 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6209 mono_mb_emit_ldarg (mb, argnum);
6210 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6211 mono_mb_emit_byte (mb, CEE_STIND_REF);
6212 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6214 mono_mb_patch_branch (mb, pos);
6217 mono_mb_emit_ldloc (mb, conv_arg);
6218 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6219 mono_mb_emit_stloc (mb, 0);
6221 /* Allocate and set dest */
6222 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6223 mono_mb_emit_byte (mb, CEE_CONV_I);
6224 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6225 mono_mb_emit_stloc (mb, 1);
6227 /* Update argument pointer */
6228 mono_mb_emit_ldarg (mb, argnum);
6229 mono_mb_emit_ldloc (mb, 1);
6230 mono_mb_emit_byte (mb, CEE_STIND_I);
6232 /* emit valuetype conversion code */
6233 emit_struct_conv (mb, klass, FALSE);
6235 mono_mb_patch_branch (mb, pos2);
6236 } else if (klass == mono_defaults.stringbuilder_class) {
6237 // FIXME: What to do here ?
6239 /* byval [Out] marshalling */
6241 /* FIXME: Handle null */
6244 mono_mb_emit_ldloc (mb, conv_arg);
6245 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6246 mono_mb_emit_stloc (mb, 0);
6249 mono_mb_emit_ldarg (mb, argnum);
6250 mono_mb_emit_stloc (mb, 1);
6252 /* emit valuetype conversion code */
6253 emit_struct_conv (mb, klass, FALSE);
6257 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6258 if (klass->delegate) {
6259 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6260 mono_mb_emit_stloc (mb, 3);
6264 /* The class can not have an automatic layout */
6265 if (mono_class_is_auto_layout (klass)) {
6266 mono_mb_emit_auto_layout_exception (mb, klass);
6270 mono_mb_emit_stloc (mb, 0);
6271 /* Check for null */
6272 mono_mb_emit_ldloc (mb, 0);
6273 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6274 mono_mb_emit_byte (mb, CEE_LDNULL);
6275 mono_mb_emit_stloc (mb, 3);
6276 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6278 mono_mb_patch_branch (mb, pos);
6281 mono_mb_emit_ldloc (mb, 0);
6282 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6283 mono_mb_emit_stloc (mb, 0);
6285 /* Allocate and set dest */
6286 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6287 mono_mb_emit_byte (mb, CEE_CONV_I);
6288 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6289 mono_mb_emit_byte (mb, CEE_DUP);
6290 mono_mb_emit_stloc (mb, 1);
6291 mono_mb_emit_stloc (mb, 3);
6293 emit_struct_conv (mb, klass, FALSE);
6295 mono_mb_patch_branch (mb, pos2);
6299 g_assert_not_reached ();
6310 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6311 MonoMarshalSpec *spec,
6312 int conv_arg, MonoType **conv_arg_type,
6313 MarshalAction action)
6315 MonoMethodBuilder *mb = m->mb;
6316 static MonoMethod *get_object_for_native_variant = NULL;
6317 static MonoMethod *get_native_variant_for_object = NULL;
6319 if (!get_object_for_native_variant)
6320 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6321 g_assert (get_object_for_native_variant);
6323 if (!get_native_variant_for_object)
6324 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6325 g_assert (get_native_variant_for_object);
6328 case MARSHAL_ACTION_CONV_IN: {
6329 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6332 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6334 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6336 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6339 mono_mb_emit_ldarg (mb, argnum);
6341 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6342 mono_mb_emit_ldloc_addr (mb, conv_arg);
6343 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6347 case MARSHAL_ACTION_CONV_OUT: {
6348 static MonoMethod *variant_clear = NULL;
6351 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6352 g_assert (variant_clear);
6355 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6356 mono_mb_emit_ldarg (mb, argnum);
6357 mono_mb_emit_ldloc_addr (mb, conv_arg);
6358 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6359 mono_mb_emit_byte (mb, CEE_STIND_REF);
6362 mono_mb_emit_ldloc_addr (mb, conv_arg);
6363 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6367 case MARSHAL_ACTION_PUSH:
6369 mono_mb_emit_ldloc_addr (mb, conv_arg);
6371 mono_mb_emit_ldloc (mb, conv_arg);
6374 case MARSHAL_ACTION_CONV_RESULT: {
6375 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6376 mono_mb_emit_exception_marshal_directive (mb, msg);
6380 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6381 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6384 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6386 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6388 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6392 mono_mb_emit_ldarg (mb, argnum);
6394 mono_mb_emit_ldarg_addr (mb, argnum);
6395 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6396 mono_mb_emit_stloc (mb, conv_arg);
6400 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6401 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6402 mono_mb_emit_ldloc (mb, conv_arg);
6403 mono_mb_emit_ldarg (mb, argnum);
6404 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6409 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6410 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6411 mono_mb_emit_exception_marshal_directive (mb, msg);
6416 g_assert_not_reached ();
6422 #endif /* DISABLE_COM */
6423 #endif /* DISABLE_JIT */
6426 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6428 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6429 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6431 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6433 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6445 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6446 MonoMarshalSpec *spec,
6447 int conv_arg, MonoType **conv_arg_type,
6448 MarshalAction action)
6452 case MARSHAL_ACTION_CONV_IN:
6453 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6455 case MARSHAL_ACTION_MANAGED_CONV_IN:
6456 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6460 MonoMethodBuilder *mb = m->mb;
6461 MonoClass *klass = mono_class_from_mono_type (t);
6462 gboolean need_convert, need_free;
6463 MonoMarshalNative encoding;
6465 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6468 case MARSHAL_ACTION_CONV_IN:
6469 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6470 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6472 if (klass->element_class->blittable) {
6473 mono_mb_emit_ldarg (mb, argnum);
6475 mono_mb_emit_byte (mb, CEE_LDIND_I);
6476 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6477 mono_mb_emit_stloc (mb, conv_arg);
6480 guint32 label1, label2, label3;
6481 int index_var, src_var, dest_ptr, esize;
6482 MonoMarshalConv conv;
6483 gboolean is_string = FALSE;
6485 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6487 eklass = klass->element_class;
6489 if (eklass == mono_defaults.string_class) {
6491 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6493 else if (eklass == mono_defaults.stringbuilder_class) {
6495 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6498 conv = MONO_MARSHAL_CONV_INVALID;
6500 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6501 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6502 mono_mb_emit_exception_marshal_directive (mb, msg);
6506 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6507 mono_mb_emit_ldarg (mb, argnum);
6509 mono_mb_emit_byte (mb, CEE_LDIND_I);
6510 mono_mb_emit_stloc (mb, src_var);
6513 mono_mb_emit_ldloc (mb, src_var);
6514 mono_mb_emit_stloc (mb, conv_arg);
6515 mono_mb_emit_ldloc (mb, src_var);
6516 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6519 esize = sizeof (gpointer);
6520 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6521 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6523 esize = mono_class_native_size (eklass, NULL);
6525 /* allocate space for the native struct and store the address */
6526 mono_mb_emit_icon (mb, esize);
6527 mono_mb_emit_ldloc (mb, src_var);
6528 mono_mb_emit_byte (mb, CEE_LDLEN);
6530 if (eklass == mono_defaults.string_class) {
6531 /* Make the array bigger for the terminating null */
6532 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6533 mono_mb_emit_byte (mb, CEE_ADD);
6535 mono_mb_emit_byte (mb, CEE_MUL);
6536 mono_mb_emit_byte (mb, CEE_PREFIX1);
6537 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6538 mono_mb_emit_stloc (mb, conv_arg);
6540 mono_mb_emit_ldloc (mb, conv_arg);
6541 mono_mb_emit_stloc (mb, dest_ptr);
6543 /* Emit marshalling loop */
6544 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6545 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6546 mono_mb_emit_stloc (mb, index_var);
6547 label2 = mono_mb_get_label (mb);
6548 mono_mb_emit_ldloc (mb, index_var);
6549 mono_mb_emit_ldloc (mb, src_var);
6550 mono_mb_emit_byte (mb, CEE_LDLEN);
6551 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6553 /* Emit marshalling code */
6557 mono_mb_emit_ldloc (mb, dest_ptr);
6558 mono_mb_emit_ldloc (mb, src_var);
6559 mono_mb_emit_ldloc (mb, index_var);
6560 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6561 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6562 mono_mb_emit_byte (mb, stind_op);
6564 /* set the src_ptr */
6565 mono_mb_emit_ldloc (mb, src_var);
6566 mono_mb_emit_ldloc (mb, index_var);
6567 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6568 mono_mb_emit_stloc (mb, 0);
6571 mono_mb_emit_ldloc (mb, dest_ptr);
6572 mono_mb_emit_stloc (mb, 1);
6574 /* emit valuetype conversion code */
6575 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6578 mono_mb_emit_add_to_local (mb, index_var, 1);
6579 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6581 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6583 mono_mb_patch_branch (mb, label3);
6585 if (eklass == mono_defaults.string_class) {
6586 /* Null terminate */
6587 mono_mb_emit_ldloc (mb, dest_ptr);
6588 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6589 mono_mb_emit_byte (mb, CEE_STIND_REF);
6592 mono_mb_patch_branch (mb, label1);
6597 case MARSHAL_ACTION_CONV_OUT:
6598 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6599 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);
6600 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6603 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6604 int param_num = spec->data.array_data.param_num;
6605 MonoType *param_type;
6607 param_type = m->sig->params [param_num];
6609 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6610 char *msg = g_strdup ("Not implemented.");
6611 mono_mb_emit_exception_marshal_directive (mb, msg);
6616 mono_mb_emit_ldarg (mb, argnum);
6618 /* Create the managed array */
6619 mono_mb_emit_ldarg (mb, param_num);
6620 if (m->sig->params [param_num]->byref)
6621 // FIXME: Support other types
6622 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6623 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6624 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6625 /* Store into argument */
6626 mono_mb_emit_byte (mb, CEE_STIND_REF);
6630 if (need_convert || need_free) {
6631 /* FIXME: Optimize blittable case */
6633 guint32 label1, label2, label3;
6634 int index_var, src_ptr, loc, esize;
6636 eklass = klass->element_class;
6637 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6638 esize = sizeof (gpointer);
6639 else if (eklass == mono_defaults.char_class)
6640 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6642 esize = mono_class_native_size (eklass, NULL);
6643 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6644 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6647 mono_mb_emit_ldarg (mb, argnum);
6649 mono_mb_emit_byte (mb, CEE_LDIND_I);
6650 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6652 mono_mb_emit_ldloc (mb, conv_arg);
6653 mono_mb_emit_stloc (mb, src_ptr);
6655 /* Emit marshalling loop */
6656 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6657 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6658 mono_mb_emit_stloc (mb, index_var);
6659 label2 = mono_mb_get_label (mb);
6660 mono_mb_emit_ldloc (mb, index_var);
6661 mono_mb_emit_ldarg (mb, argnum);
6663 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6664 mono_mb_emit_byte (mb, CEE_LDLEN);
6665 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6667 /* Emit marshalling code */
6669 if (eklass == mono_defaults.stringbuilder_class) {
6670 gboolean need_free2;
6671 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6673 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6676 mono_mb_emit_ldarg (mb, argnum);
6678 mono_mb_emit_byte (mb, CEE_LDIND_I);
6679 mono_mb_emit_ldloc (mb, index_var);
6680 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6683 mono_mb_emit_ldloc (mb, src_ptr);
6684 mono_mb_emit_byte (mb, CEE_LDIND_I);
6686 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6690 mono_mb_emit_ldloc (mb, src_ptr);
6691 mono_mb_emit_byte (mb, CEE_LDIND_I);
6693 mono_mb_emit_icall (mb, mono_marshal_free);
6696 else if (eklass == mono_defaults.string_class) {
6699 mono_mb_emit_ldloc (mb, src_ptr);
6700 mono_mb_emit_byte (mb, CEE_LDIND_I);
6702 mono_mb_emit_icall (mb, mono_marshal_free);
6707 /* set the src_ptr */
6708 mono_mb_emit_ldloc (mb, src_ptr);
6709 mono_mb_emit_stloc (mb, 0);
6712 mono_mb_emit_ldarg (mb, argnum);
6714 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6715 mono_mb_emit_ldloc (mb, index_var);
6716 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6717 mono_mb_emit_stloc (mb, 1);
6719 /* emit valuetype conversion code */
6720 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6724 mono_mb_emit_ldloc (mb, src_ptr);
6725 mono_mb_emit_stloc (mb, loc);
6726 mono_mb_emit_ldloc (mb, loc);
6728 emit_struct_free (mb, eklass, loc);
6732 mono_mb_emit_add_to_local (mb, index_var, 1);
6733 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6735 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6737 mono_mb_patch_branch (mb, label1);
6738 mono_mb_patch_branch (mb, label3);
6741 if (klass->element_class->blittable) {
6742 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6744 mono_mb_emit_ldarg (mb, argnum);
6746 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6747 mono_mb_emit_ldloc (mb, conv_arg);
6748 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6753 case MARSHAL_ACTION_PUSH:
6755 mono_mb_emit_ldloc_addr (mb, conv_arg);
6757 mono_mb_emit_ldloc (mb, conv_arg);
6760 case MARSHAL_ACTION_CONV_RESULT:
6761 /* fixme: we need conversions here */
6762 mono_mb_emit_stloc (mb, 3);
6765 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6767 guint32 label1, label2, label3;
6768 int index_var, src_ptr, esize, param_num, num_elem;
6769 MonoMarshalConv conv;
6770 gboolean is_string = FALSE;
6772 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6773 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6776 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6777 mono_mb_emit_exception_marshal_directive (mb, msg);
6781 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6782 mono_mb_emit_exception_marshal_directive (mb, msg);
6785 if (spec->native != MONO_NATIVE_LPARRAY) {
6786 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6787 mono_mb_emit_exception_marshal_directive (mb, msg);
6791 /* FIXME: t is from the method which is wrapped, not the delegate type */
6792 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6794 param_num = spec->data.array_data.param_num;
6795 num_elem = spec->data.array_data.num_elem;
6796 if (spec->data.array_data.elem_mult == 0)
6797 /* param_num is not specified */
6800 if (param_num == -1) {
6801 if (num_elem <= 0) {
6802 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6803 mono_mb_emit_exception_marshal_directive (mb, msg);
6808 /* FIXME: Optimize blittable case */
6810 eklass = klass->element_class;
6811 if (eklass == mono_defaults.string_class) {
6813 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6815 else if (eklass == mono_defaults.stringbuilder_class) {
6817 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6820 conv = MONO_MARSHAL_CONV_INVALID;
6822 mono_marshal_load_type_info (eklass);
6825 esize = sizeof (gpointer);
6827 esize = mono_class_native_size (eklass, NULL);
6828 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6830 mono_mb_emit_byte (mb, CEE_LDNULL);
6831 mono_mb_emit_stloc (mb, conv_arg);
6833 /* Check param index */
6834 if (param_num != -1) {
6835 if (param_num >= m->sig->param_count) {
6836 char *msg = g_strdup ("Array size control parameter index is out of range.");
6837 mono_mb_emit_exception_marshal_directive (mb, msg);
6840 switch (m->sig->params [param_num]->type) {
6853 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6854 mono_mb_emit_exception_marshal_directive (mb, msg);
6861 mono_mb_emit_ldarg (mb, argnum);
6862 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6864 mono_mb_emit_ldarg (mb, argnum);
6865 mono_mb_emit_stloc (mb, src_ptr);
6867 /* Create managed array */
6869 * The LPArray marshalling spec says that sometimes param_num starts
6870 * from 1, sometimes it starts from 0. But MS seems to allways start
6874 if (param_num == -1) {
6875 mono_mb_emit_icon (mb, num_elem);
6877 mono_mb_emit_ldarg (mb, param_num);
6879 mono_mb_emit_icon (mb, num_elem);
6880 mono_mb_emit_byte (mb, CEE_ADD);
6882 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6885 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6886 mono_mb_emit_stloc (mb, conv_arg);
6888 if (eklass->blittable) {
6889 mono_mb_emit_ldloc (mb, conv_arg);
6890 mono_mb_emit_byte (mb, CEE_CONV_I);
6891 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6892 mono_mb_emit_byte (mb, CEE_ADD);
6893 mono_mb_emit_ldarg (mb, argnum);
6894 mono_mb_emit_ldloc (mb, conv_arg);
6895 mono_mb_emit_byte (mb, CEE_LDLEN);
6896 mono_mb_emit_icon (mb, esize);
6897 mono_mb_emit_byte (mb, CEE_MUL);
6898 mono_mb_emit_byte (mb, CEE_PREFIX1);
6899 mono_mb_emit_byte (mb, CEE_CPBLK);
6900 mono_mb_patch_branch (mb, label1);
6904 /* Emit marshalling loop */
6905 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6906 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6907 mono_mb_emit_stloc (mb, index_var);
6908 label2 = mono_mb_get_label (mb);
6909 mono_mb_emit_ldloc (mb, index_var);
6910 mono_mb_emit_ldloc (mb, conv_arg);
6911 mono_mb_emit_byte (mb, CEE_LDLEN);
6912 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6914 /* Emit marshalling code */
6916 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6918 mono_mb_emit_ldloc (mb, conv_arg);
6919 mono_mb_emit_ldloc (mb, index_var);
6921 mono_mb_emit_ldloc (mb, src_ptr);
6922 mono_mb_emit_byte (mb, CEE_LDIND_I);
6924 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6925 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6928 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6929 mono_mb_emit_exception_marshal_directive (mb, msg);
6933 mono_mb_emit_add_to_local (mb, index_var, 1);
6934 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6936 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6938 mono_mb_patch_branch (mb, label1);
6939 mono_mb_patch_branch (mb, label3);
6943 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6945 guint32 label1, label2, label3;
6946 int index_var, dest_ptr, esize, param_num, num_elem;
6947 MonoMarshalConv conv;
6948 gboolean is_string = FALSE;
6951 /* Already handled in CONV_IN */
6954 /* These are already checked in CONV_IN */
6955 g_assert (!t->byref);
6956 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6957 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6959 param_num = spec->data.array_data.param_num;
6960 num_elem = spec->data.array_data.num_elem;
6962 if (spec->data.array_data.elem_mult == 0)
6963 /* param_num is not specified */
6966 if (param_num == -1) {
6967 if (num_elem <= 0) {
6968 g_assert_not_reached ();
6972 /* FIXME: Optimize blittable case */
6974 eklass = klass->element_class;
6975 if (eklass == mono_defaults.string_class) {
6977 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6979 else if (eklass == mono_defaults.stringbuilder_class) {
6981 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6984 conv = MONO_MARSHAL_CONV_INVALID;
6986 mono_marshal_load_type_info (eklass);
6989 esize = sizeof (gpointer);
6991 esize = mono_class_native_size (eklass, NULL);
6993 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6996 mono_mb_emit_ldloc (mb, conv_arg);
6997 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6999 mono_mb_emit_ldarg (mb, argnum);
7000 mono_mb_emit_stloc (mb, dest_ptr);
7002 if (eklass->blittable) {
7004 mono_mb_emit_ldarg (mb, argnum);
7006 mono_mb_emit_ldloc (mb, conv_arg);
7007 mono_mb_emit_byte (mb, CEE_CONV_I);
7008 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
7009 mono_mb_emit_byte (mb, CEE_ADD);
7011 mono_mb_emit_ldloc (mb, conv_arg);
7012 mono_mb_emit_byte (mb, CEE_LDLEN);
7013 mono_mb_emit_icon (mb, esize);
7014 mono_mb_emit_byte (mb, CEE_MUL);
7015 mono_mb_emit_byte (mb, CEE_PREFIX1);
7016 mono_mb_emit_byte (mb, CEE_CPBLK);
7020 /* Emit marshalling loop */
7021 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7022 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7023 mono_mb_emit_stloc (mb, index_var);
7024 label2 = mono_mb_get_label (mb);
7025 mono_mb_emit_ldloc (mb, index_var);
7026 mono_mb_emit_ldloc (mb, conv_arg);
7027 mono_mb_emit_byte (mb, CEE_LDLEN);
7028 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7030 /* Emit marshalling code */
7033 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7036 mono_mb_emit_ldloc (mb, dest_ptr);
7039 mono_mb_emit_ldloc (mb, conv_arg);
7040 mono_mb_emit_ldloc (mb, index_var);
7042 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7044 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7045 mono_mb_emit_byte (mb, stind_op);
7048 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7049 mono_mb_emit_exception_marshal_directive (mb, msg);
7053 mono_mb_emit_add_to_local (mb, index_var, 1);
7054 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7056 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7058 mono_mb_patch_branch (mb, label1);
7059 mono_mb_patch_branch (mb, label3);
7063 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7065 guint32 label1, label2, label3;
7066 int index_var, src, dest, esize;
7067 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
7068 gboolean is_string = FALSE;
7070 g_assert (!t->byref);
7072 eklass = klass->element_class;
7074 mono_marshal_load_type_info (eklass);
7076 if (eklass == mono_defaults.string_class) {
7078 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7081 g_assert_not_reached ();
7085 esize = sizeof (gpointer);
7086 else if (eklass == mono_defaults.char_class)
7087 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7089 esize = mono_class_native_size (eklass, NULL);
7091 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7092 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7094 mono_mb_emit_stloc (mb, src);
7095 mono_mb_emit_ldloc (mb, src);
7096 mono_mb_emit_stloc (mb, 3);
7098 /* Check for null */
7099 mono_mb_emit_ldloc (mb, src);
7100 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7102 /* Allocate native array */
7103 mono_mb_emit_icon (mb, esize);
7104 mono_mb_emit_ldloc (mb, src);
7105 mono_mb_emit_byte (mb, CEE_LDLEN);
7107 if (eklass == mono_defaults.string_class) {
7108 /* Make the array bigger for the terminating null */
7109 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7110 mono_mb_emit_byte (mb, CEE_ADD);
7112 mono_mb_emit_byte (mb, CEE_MUL);
7113 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
7114 mono_mb_emit_stloc (mb, dest);
7115 mono_mb_emit_ldloc (mb, dest);
7116 mono_mb_emit_stloc (mb, 3);
7118 /* Emit marshalling loop */
7119 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7120 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7121 mono_mb_emit_stloc (mb, index_var);
7122 label2 = mono_mb_get_label (mb);
7123 mono_mb_emit_ldloc (mb, index_var);
7124 mono_mb_emit_ldloc (mb, src);
7125 mono_mb_emit_byte (mb, CEE_LDLEN);
7126 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7128 /* Emit marshalling code */
7131 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7134 mono_mb_emit_ldloc (mb, dest);
7137 mono_mb_emit_ldloc (mb, src);
7138 mono_mb_emit_ldloc (mb, index_var);
7140 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7142 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7143 mono_mb_emit_byte (mb, stind_op);
7146 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7147 mono_mb_emit_exception_marshal_directive (mb, msg);
7151 mono_mb_emit_add_to_local (mb, index_var, 1);
7152 mono_mb_emit_add_to_local (mb, dest, esize);
7154 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7156 mono_mb_patch_branch (mb, label3);
7157 mono_mb_patch_branch (mb, label1);
7161 g_assert_not_reached ();
7168 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
7171 return &mono_defaults.int32_class->byval_arg;
7173 switch (spec->native) {
7174 case MONO_NATIVE_I1:
7175 case MONO_NATIVE_U1:
7176 return &mono_defaults.byte_class->byval_arg;
7177 case MONO_NATIVE_VARIANTBOOL:
7178 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
7179 return &mono_defaults.int16_class->byval_arg;
7180 case MONO_NATIVE_BOOLEAN:
7181 return &mono_defaults.int32_class->byval_arg;
7183 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7184 return &mono_defaults.int32_class->byval_arg;
7190 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
7192 MonoClass* conv_arg_class = mono_defaults.int32_class;
7194 switch (spec->native) {
7195 case MONO_NATIVE_I1:
7196 case MONO_NATIVE_U1:
7197 conv_arg_class = mono_defaults.byte_class;
7198 if (ldop) *ldop = CEE_LDIND_I1;
7200 case MONO_NATIVE_VARIANTBOOL:
7201 conv_arg_class = mono_defaults.int16_class;
7202 if (ldop) *ldop = CEE_LDIND_I2;
7204 case MONO_NATIVE_BOOLEAN:
7207 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7210 return conv_arg_class;
7214 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7215 MonoMarshalSpec *spec,
7216 int conv_arg, MonoType **conv_arg_type,
7217 MarshalAction action)
7221 case MARSHAL_ACTION_CONV_IN:
7223 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7225 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7228 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7229 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7231 *conv_arg_type = &conv_arg_class->this_arg;
7233 *conv_arg_type = &conv_arg_class->byval_arg;
7239 MonoMethodBuilder *mb = m->mb;
7242 case MARSHAL_ACTION_CONV_IN: {
7243 MonoType *local_type;
7245 guint8 ldc_op = CEE_LDC_I4_1;
7247 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7249 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7251 *conv_arg_type = local_type;
7252 conv_arg = mono_mb_add_local (mb, local_type);
7254 mono_mb_emit_ldarg (mb, argnum);
7256 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7257 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7258 mono_mb_emit_byte (mb, ldc_op);
7259 mono_mb_emit_stloc (mb, conv_arg);
7260 mono_mb_patch_branch (mb, label_false);
7265 case MARSHAL_ACTION_CONV_OUT:
7267 int label_false, label_end;
7271 mono_mb_emit_ldarg (mb, argnum);
7272 mono_mb_emit_ldloc (mb, conv_arg);
7274 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7275 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7277 label_end = mono_mb_emit_branch (mb, CEE_BR);
7278 mono_mb_patch_branch (mb, label_false);
7279 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7280 mono_mb_patch_branch (mb, label_end);
7282 mono_mb_emit_byte (mb, CEE_STIND_I1);
7286 case MARSHAL_ACTION_PUSH:
7288 mono_mb_emit_ldloc_addr (mb, conv_arg);
7290 mono_mb_emit_ldloc (mb, conv_arg);
7292 mono_mb_emit_ldarg (mb, argnum);
7295 case MARSHAL_ACTION_CONV_RESULT:
7296 /* maybe we need to make sure that it fits within 8 bits */
7297 mono_mb_emit_stloc (mb, 3);
7300 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7301 MonoClass* conv_arg_class = mono_defaults.int32_class;
7302 guint8 ldop = CEE_LDIND_I4;
7303 int label_null, label_false;
7305 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7306 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7309 *conv_arg_type = &conv_arg_class->this_arg;
7311 *conv_arg_type = &conv_arg_class->byval_arg;
7314 mono_mb_emit_ldarg (mb, argnum);
7318 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7319 mono_mb_emit_ldarg (mb, argnum);
7320 mono_mb_emit_byte (mb, ldop);
7324 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7325 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7326 mono_mb_emit_stloc (mb, conv_arg);
7327 mono_mb_patch_branch (mb, label_false);
7330 mono_mb_patch_branch (mb, label_null);
7334 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7335 guint8 stop = CEE_STIND_I4;
7336 guint8 ldc_op = CEE_LDC_I4_1;
7337 int label_null,label_false, label_end;;
7342 switch (spec->native) {
7343 case MONO_NATIVE_I1:
7344 case MONO_NATIVE_U1:
7345 stop = CEE_STIND_I1;
7347 case MONO_NATIVE_VARIANTBOOL:
7348 stop = CEE_STIND_I2;
7349 ldc_op = CEE_LDC_I4_M1;
7357 mono_mb_emit_ldarg (mb, argnum);
7358 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7360 mono_mb_emit_ldarg (mb, argnum);
7361 mono_mb_emit_ldloc (mb, conv_arg);
7363 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7364 mono_mb_emit_byte (mb, ldc_op);
7365 label_end = mono_mb_emit_branch (mb, CEE_BR);
7367 mono_mb_patch_branch (mb, label_false);
7368 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7369 mono_mb_patch_branch (mb, label_end);
7371 mono_mb_emit_byte (mb, stop);
7372 mono_mb_patch_branch (mb, label_null);
7377 g_assert_not_reached ();
7384 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7385 MonoMarshalSpec *spec, int conv_arg,
7386 MonoType **conv_arg_type, MarshalAction action)
7389 MonoMethodBuilder *mb = m->mb;
7392 case MARSHAL_ACTION_CONV_IN:
7393 /* MS seems to allow this in some cases, ie. bxc #158 */
7395 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7396 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7397 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7402 case MARSHAL_ACTION_PUSH:
7403 mono_mb_emit_ldarg (mb, argnum);
7406 case MARSHAL_ACTION_CONV_RESULT:
7407 /* no conversions necessary */
7408 mono_mb_emit_stloc (mb, 3);
7419 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7420 MonoMarshalSpec *spec, int conv_arg,
7421 MonoType **conv_arg_type, MarshalAction action)
7424 MonoMethodBuilder *mb = m->mb;
7427 case MARSHAL_ACTION_PUSH:
7428 /* fixme: dont know how to marshal that. We cant simply
7429 * convert it to a one byte UTF8 character, because an
7430 * unicode character may need more that one byte in UTF8 */
7431 mono_mb_emit_ldarg (mb, argnum);
7434 case MARSHAL_ACTION_CONV_RESULT:
7435 /* fixme: we need conversions here */
7436 mono_mb_emit_stloc (mb, 3);
7447 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7448 MonoMarshalSpec *spec, int conv_arg,
7449 MonoType **conv_arg_type, MarshalAction action)
7452 MonoMethodBuilder *mb = m->mb;
7455 case MARSHAL_ACTION_PUSH:
7456 mono_mb_emit_ldarg (mb, argnum);
7459 case MARSHAL_ACTION_CONV_RESULT:
7460 /* no conversions necessary */
7461 mono_mb_emit_stloc (mb, 3);
7472 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7473 MonoMarshalSpec *spec, int conv_arg,
7474 MonoType **conv_arg_type, MarshalAction action)
7476 /* Ensure that we have marshalling info for this param */
7477 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7479 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7480 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7482 if (spec && spec->native == MONO_NATIVE_ASANY)
7483 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7486 case MONO_TYPE_VALUETYPE:
7487 if (t->data.klass == mono_defaults.handleref_class)
7488 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7490 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7491 case MONO_TYPE_STRING:
7492 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7493 case MONO_TYPE_CLASS:
7494 case MONO_TYPE_OBJECT:
7495 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7496 if (spec && spec->native == MONO_NATIVE_STRUCT)
7497 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7500 #if !defined(DISABLE_COM)
7501 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7502 spec->native == MONO_NATIVE_IDISPATCH ||
7503 spec->native == MONO_NATIVE_INTERFACE))
7504 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7505 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7506 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7507 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7508 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7511 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7512 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7513 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7515 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7516 case MONO_TYPE_ARRAY:
7517 case MONO_TYPE_SZARRAY:
7518 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7519 case MONO_TYPE_BOOLEAN:
7520 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7522 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7523 case MONO_TYPE_CHAR:
7524 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7537 case MONO_TYPE_FNPTR:
7538 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7539 case MONO_TYPE_GENERICINST:
7540 if (mono_type_generic_inst_is_valuetype (t))
7541 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7543 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7549 /* How the arguments of an icall should be wrapped */
7551 /* Don't wrap at all, pass the argument as is */
7552 ICALL_HANDLES_WRAP_NONE,
7553 /* Wrap the argument in an object handle, pass the handle to the icall */
7554 ICALL_HANDLES_WRAP_OBJ,
7555 /* Wrap the argument in an object handle, pass the handle to the icall,
7556 write the value out from the handle when the icall returns */
7557 ICALL_HANDLES_WRAP_OBJ_INOUT,
7558 /* Wrap the argument (a valuetype reference) in a handle to pin its enclosing object,
7559 but pass the raw reference to the icall */
7560 ICALL_HANDLES_WRAP_VALUETYPE_REF,
7564 IcallHandlesWrap wrap;
7565 /* if wrap is NONE or OBJ or VALUETYPE_REF, this is not meaningful.
7566 if wrap is OBJ_INOUT it's the local var that holds the MonoObjectHandle.
7569 } IcallHandlesLocal;
7572 * Describes how to wrap the given parameter.
7575 static IcallHandlesWrap
7576 signature_param_uses_handles (MonoMethodSignature *sig, int param)
7578 if (MONO_TYPE_IS_REFERENCE (sig->params [param])) {
7579 return mono_signature_param_is_out (sig, param) ? ICALL_HANDLES_WRAP_OBJ_INOUT : ICALL_HANDLES_WRAP_OBJ;
7580 } else if (mono_type_is_byref (sig->params [param]))
7581 return ICALL_HANDLES_WRAP_VALUETYPE_REF;
7583 return ICALL_HANDLES_WRAP_NONE;
7589 * mono_marshal_emit_native_wrapper:
7590 * \param image the image to use for looking up custom marshallers
7591 * \param sig The signature of the native function
7592 * \param piinfo Marshalling information
7593 * \param mspecs Marshalling information
7594 * \param aot whenever the created method will be compiled by the AOT compiler
7595 * \param method if non-NULL, the pinvoke method to call
7596 * \param check_exceptions Whenever to check for pending exceptions after the native call
7597 * \param func_param the function to call is passed as a boxed IntPtr as the first parameter
7599 * generates IL code for the pinvoke wrapper, the generated code calls \p func .
7602 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)
7604 EmitMarshalContext m;
7605 MonoMethodSignature *csig;
7607 int i, argnum, *tmp_locals;
7608 int type, param_shift = 0;
7609 int coop_gc_stack_dummy, coop_gc_var;
7611 memset (&m, 0, sizeof (m));
7616 /* we copy the signature, so that we can set pinvoke to 0 */
7618 /* The function address is passed as the first argument */
7619 g_assert (!sig->hasthis);
7622 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7630 /* we allocate local for use with emit_struct_conv() */
7631 /* allocate local 0 (pointer) src_ptr */
7632 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7633 /* allocate local 1 (pointer) dst_ptr */
7634 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7635 /* allocate local 2 (boolean) delete_old */
7636 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7638 /* delete_old = FALSE */
7639 mono_mb_emit_icon (mb, 0);
7640 mono_mb_emit_stloc (mb, 2);
7642 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7643 /* allocate local 3 to store the return value */
7644 mono_mb_add_local (mb, sig->ret);
7647 if (mono_threads_is_coop_enabled ()) {
7648 /* local 4, dummy local used to get a stack address for suspend funcs */
7649 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7650 /* local 5, the local to be used when calling the suspend funcs */
7651 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7655 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7657 * ret = method (...);
7659 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7666 if (MONO_TYPE_ISSTRUCT (sig->ret))
7667 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7669 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7670 /* Return type custom marshaling */
7672 * Since we can't determine the return type of the unmanaged function,
7673 * we assume it returns a pointer, and pass that pointer to
7674 * MarshalNativeToManaged.
7676 csig->ret = &mono_defaults.int_class->byval_arg;
7679 /* we first do all conversions */
7680 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7681 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7683 for (i = 0; i < sig->param_count; i ++) {
7684 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7687 // In coop mode need to register blocking state during native call
7688 if (mono_threads_is_coop_enabled ()) {
7689 // Perform an extra, early lookup of the function address, so any exceptions
7690 // potentially resulting from the lookup occur before entering blocking mode.
7691 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7692 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7693 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7694 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7697 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7698 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7699 mono_mb_emit_stloc (mb, coop_gc_var);
7702 /* push all arguments */
7705 mono_mb_emit_byte (mb, CEE_LDARG_0);
7707 for (i = 0; i < sig->param_count; i++) {
7708 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7711 /* call the native method */
7713 mono_mb_emit_byte (mb, CEE_LDARG_0);
7714 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7715 mono_mb_emit_byte (mb, CEE_LDIND_I);
7716 mono_mb_emit_calli (mb, csig);
7717 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7719 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7721 g_assert_not_reached ();
7725 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7726 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7727 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7728 mono_mb_emit_calli (mb, csig);
7730 mono_mb_emit_native_call (mb, csig, func);
7734 /* Set LastError if needed */
7735 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7738 static MonoMethodSignature *get_last_error_sig = NULL;
7739 if (!get_last_error_sig) {
7740 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7741 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7742 get_last_error_sig->pinvoke = 1;
7746 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7747 * clobber its value.
7749 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7750 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7752 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7753 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7754 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7757 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7761 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7762 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7763 mono_class_init (klass);
7764 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
7765 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7766 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7767 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7768 mono_mb_emit_stloc (mb, m.vtaddr_var);
7772 /* Unblock before converting the result, since that can involve calls into the runtime */
7773 if (mono_threads_is_coop_enabled ()) {
7774 mono_mb_emit_ldloc (mb, coop_gc_var);
7775 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7776 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7779 /* convert the result */
7780 if (!sig->ret->byref) {
7781 MonoMarshalSpec *spec = mspecs [0];
7782 type = sig->ret->type;
7784 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7785 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7789 case MONO_TYPE_VOID:
7791 case MONO_TYPE_VALUETYPE:
7792 klass = sig->ret->data.klass;
7793 if (klass->enumtype) {
7794 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7797 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7811 case MONO_TYPE_FNPTR:
7812 case MONO_TYPE_STRING:
7813 case MONO_TYPE_CLASS:
7814 case MONO_TYPE_OBJECT:
7815 case MONO_TYPE_BOOLEAN:
7816 case MONO_TYPE_ARRAY:
7817 case MONO_TYPE_SZARRAY:
7818 case MONO_TYPE_CHAR:
7820 case MONO_TYPE_GENERICINST:
7821 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7823 case MONO_TYPE_TYPEDBYREF:
7825 g_warning ("return type 0x%02x unknown", sig->ret->type);
7826 g_assert_not_reached ();
7830 mono_mb_emit_stloc (mb, 3);
7834 * Need to call this after converting the result since MONO_VTADDR needs
7835 * to be adjacent to the call instruction.
7837 if (check_exceptions)
7838 emit_thread_interrupt_checkpoint (mb);
7840 /* we need to convert byref arguments back and free string arrays */
7841 for (i = 0; i < sig->param_count; i++) {
7842 MonoType *t = sig->params [i];
7843 MonoMarshalSpec *spec = mspecs [i + 1];
7845 argnum = i + param_shift;
7847 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7848 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7853 case MONO_TYPE_STRING:
7854 case MONO_TYPE_VALUETYPE:
7855 case MONO_TYPE_CLASS:
7856 case MONO_TYPE_OBJECT:
7857 case MONO_TYPE_SZARRAY:
7858 case MONO_TYPE_BOOLEAN:
7859 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7866 if (!MONO_TYPE_IS_VOID(sig->ret))
7867 mono_mb_emit_ldloc (mb, 3);
7869 mono_mb_emit_byte (mb, CEE_RET);
7871 #endif /* DISABLE_JIT */
7874 * mono_marshal_get_native_wrapper:
7875 * \param method The \c MonoMethod to wrap.
7876 * \param check_exceptions Whenever to check for pending exceptions
7878 * Generates IL code for the pinvoke wrapper. The generated method
7879 * calls the unmanaged code in \c piinfo->addr.
7882 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7884 MonoMethodSignature *sig, *csig;
7885 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7886 MonoMethodBuilder *mb;
7887 MonoMarshalSpec **mspecs;
7890 gboolean pinvoke = FALSE;
7893 const char *exc_class = "MissingMethodException";
7894 const char *exc_arg = NULL;
7897 g_assert (method != NULL);
7898 g_assert (mono_method_signature (method)->pinvoke);
7900 GHashTable **cache_ptr;
7903 if (check_exceptions)
7904 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7906 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7908 if (check_exceptions)
7909 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7911 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7914 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7916 if ((res = mono_marshal_find_in_cache (cache, method)))
7919 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7920 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7924 return mono_cominterop_get_native_wrapper (method);
7926 g_assert_not_reached ();
7930 sig = mono_method_signature (method);
7932 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7933 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7936 if (!piinfo->addr) {
7938 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7939 exc_arg = "Method contains unsupported native code";
7941 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7943 piinfo->addr = mono_lookup_internal_call (method);
7947 /* hack - redirect certain string constructors to CreateString */
7948 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7949 g_assert (!pinvoke);
7950 g_assert (method->string_ctor);
7951 g_assert (sig->hasthis);
7953 /* CreateString returns a value */
7954 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7955 csig->ret = &mono_defaults.string_class->byval_arg;
7959 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7960 if (!strcmp ("CreateString", res->name) &&
7961 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7964 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7965 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7967 /* create a wrapper to preserve .ctor in stack trace */
7968 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7971 mono_mb_emit_byte (mb, CEE_LDARG_0);
7972 for (i = 1; i <= csig->param_count; i++)
7973 mono_mb_emit_ldarg (mb, i);
7974 mono_mb_emit_managed_call (mb, res, NULL);
7975 mono_mb_emit_byte (mb, CEE_RET);
7978 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7979 info->d.string_ctor.method = method;
7981 /* use native_wrapper_cache because internal calls are looked up there */
7982 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7983 csig->param_count + 1, info, NULL);
7990 /* exception will be thrown */
7991 piinfo->addr = NULL;
7992 g_warning ("cannot find CreateString for .ctor");
7995 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7997 mb->method->save_lmf = 1;
8000 * In AOT mode and embedding scenarios, it is possible that the icall is not
8001 * registered in the runtime doing the AOT compilation.
8003 if (!piinfo->addr && !aot) {
8005 mono_mb_emit_exception (mb, exc_class, exc_arg);
8007 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8008 info->d.managed_to_native.method = method;
8010 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8012 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
8013 csig->param_count + 16, info, NULL);
8019 /* internal calls: we simply push all arguments and call the method (no conversions) */
8020 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8022 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
8024 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8026 //printf ("%s\n", mono_method_full_name (method, 1));
8028 /* hack - string constructors returns a value */
8029 if (method->string_ctor)
8030 csig->ret = &mono_defaults.string_class->byval_arg;
8034 MonoClass *handle_stack_mark_class;
8035 MonoClass *error_class;
8036 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
8037 MonoMethodSignature *call_sig = csig;
8038 gboolean uses_handles = FALSE;
8039 gboolean save_handles_to_locals = FALSE;
8040 IcallHandlesLocal *handles_locals = NULL;
8042 (void) mono_lookup_internal_call_full (method, &uses_handles);
8044 /* If it uses handles and MonoError, it had better check exceptions */
8045 g_assert (!uses_handles || check_exceptions);
8048 MonoMethodSignature *ret;
8050 /* Add a MonoError argument and figure out which args need to be wrapped in handles */
8051 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
8052 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
8054 ret->param_count = csig->param_count + 1;
8055 ret->ret = csig->ret;
8057 handles_locals = g_new0 (IcallHandlesLocal, csig->param_count);
8058 for (int i = 0; i < csig->param_count; ++i) {
8059 IcallHandlesWrap w = signature_param_uses_handles (csig, i);
8060 handles_locals [i].wrap = w;
8062 case ICALL_HANDLES_WRAP_OBJ:
8063 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8064 ret->params [i] = mono_class_get_byref_type (mono_class_from_mono_type(csig->params[i]));
8065 if (w == ICALL_HANDLES_WRAP_OBJ_INOUT)
8066 save_handles_to_locals = TRUE;
8068 case ICALL_HANDLES_WRAP_NONE:
8069 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8070 ret->params [i] = csig->params [i];
8073 g_assert_not_reached ();
8076 /* Add MonoError* param */
8077 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
8078 ret->pinvoke = csig->pinvoke;
8084 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
8085 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
8087 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
8088 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
8089 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
8091 if (save_handles_to_locals) {
8092 /* add a local var to hold the handles for each out arg */
8093 for (int i = 0; i < sig->param_count; ++i) {
8094 int j = i + sig->hasthis;
8095 switch (handles_locals[j].wrap) {
8096 case ICALL_HANDLES_WRAP_NONE:
8097 case ICALL_HANDLES_WRAP_OBJ:
8098 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8099 handles_locals [j].handle = -1;
8101 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8102 handles_locals [j].handle = mono_mb_add_local (mb, sig->params [i]);
8105 g_assert_not_reached ();
8115 * Add a null check since public icalls can be called with 'call' which
8116 * does no such check.
8118 mono_mb_emit_byte (mb, CEE_LDARG_0);
8119 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8120 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8121 mono_mb_patch_branch (mb, pos);
8125 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8126 mono_mb_emit_ldloc_addr (mb, error_var);
8127 mono_mb_emit_icall (mb, mono_icall_start);
8128 mono_mb_emit_stloc (mb, thread_info_var);
8131 mono_mb_emit_byte (mb, CEE_LDARG_0);
8132 /* TODO support adding wrappers to non-static struct methods */
8133 g_assert (!mono_class_is_valuetype(mono_method_get_class (method)));
8134 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8135 mono_mb_emit_icall (mb, mono_icall_handle_new_full);
8137 for (i = 0; i < sig->param_count; i++) {
8138 /* load each argument. references into the managed heap get wrapped in handles */
8139 int j = i + sig->hasthis;
8140 switch (handles_locals[j].wrap) {
8141 case ICALL_HANDLES_WRAP_NONE:
8142 mono_mb_emit_ldarg (mb, j);
8144 case ICALL_HANDLES_WRAP_OBJ:
8145 /* argI = mono_handle_new_full (argI_raw, FALSE) */
8146 mono_mb_emit_ldarg (mb, j);
8147 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8148 mono_mb_emit_icall (mb, mono_icall_handle_new_full);
8150 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8151 /* handleI = argI = mono_handle_new_full (NULL, FALSE) */
8152 mono_mb_emit_byte (mb, CEE_LDNULL);
8153 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8154 mono_mb_emit_icall (mb, mono_icall_handle_new_full);
8156 mono_mb_emit_byte (mb, CEE_DUP);
8158 mono_mb_emit_stloc (mb, handles_locals[j].handle);
8160 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8161 /* (void) mono_handle_new_full (argI, TRUE); argI */
8162 mono_mb_emit_ldarg (mb, j);
8163 mono_mb_emit_byte (mb, CEE_DUP);
8164 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8165 mono_mb_emit_icall (mb, mono_icall_handle_new_full);
8166 mono_mb_emit_byte (mb, CEE_POP);
8168 fprintf (stderr, " Method %s.%s.%s has byref valuetype argument %d\n", method->klass->name_space, method->klass->name, method->name, i);
8172 g_assert_not_reached ();
8175 mono_mb_emit_ldloc_addr (mb, error_var);
8178 mono_mb_emit_byte (mb, CEE_LDARG_0);
8179 for (i = 0; i < sig->param_count; i++)
8180 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8184 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8185 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8186 mono_mb_emit_calli (mb, call_sig);
8188 g_assert (piinfo->addr);
8189 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
8193 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
8194 // if (ret != NULL_HANDLE) {
8195 // ret = MONO_HANDLE_RAW(ret)
8197 mono_mb_emit_byte (mb, CEE_DUP);
8198 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8199 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8200 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8201 mono_mb_patch_branch (mb, pos);
8203 if (save_handles_to_locals) {
8204 for (i = 0; i < sig->param_count; i++) {
8205 int j = i + sig->hasthis;
8206 switch (handles_locals [j].wrap) {
8207 case ICALL_HANDLES_WRAP_NONE:
8208 case ICALL_HANDLES_WRAP_OBJ:
8209 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8211 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8212 /* *argI_raw = MONO_HANDLE_RAW (handleI) */
8215 mono_mb_emit_ldarg (mb, j);
8217 mono_mb_emit_ldloc (mb, handles_locals [j].handle);
8218 /* MONO_HANDLE_RAW(handleI) */
8219 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8220 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8221 /* *argI_raw = MONO_HANDLE_RAW(handleI) */
8222 mono_mb_emit_byte (mb, CEE_STIND_REF);
8225 g_assert_not_reached ();
8229 g_free (handles_locals);
8231 mono_mb_emit_ldloc (mb, thread_info_var);
8232 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8233 mono_mb_emit_ldloc_addr (mb, error_var);
8234 mono_mb_emit_icall (mb, mono_icall_end);
8237 if (check_exceptions)
8238 emit_thread_interrupt_checkpoint (mb);
8239 mono_mb_emit_byte (mb, CEE_RET);
8241 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8242 info->d.managed_to_native.method = method;
8244 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
8246 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8255 g_assert (piinfo->addr);
8258 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8259 mono_method_get_marshal_info (method, mspecs);
8261 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
8263 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
8264 info->d.managed_to_native.method = method;
8266 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8268 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8273 for (i = sig->param_count; i >= 0; i--)
8275 mono_metadata_free_marshal_spec (mspecs [i]);
8279 /* mono_method_print_code (res); */
8285 * mono_marshal_get_native_func_wrapper:
8286 * \param image The image to use for memory allocation and for looking up custom marshallers.
8287 * \param sig The signature of the function
8288 * \param func The native function to wrap
8290 * \returns a wrapper method around native functions, similar to the pinvoke
8294 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8295 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8297 MonoMethodSignature *csig;
8299 SignaturePointerPair key, *new_key;
8300 MonoMethodBuilder *mb;
8309 // Generic types are not safe to place in MonoImage caches.
8310 g_assert (!sig->is_inflated);
8312 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
8313 if ((res = mono_marshal_find_in_cache (cache, &key)))
8316 name = g_strdup_printf ("wrapper_native_%p", func);
8317 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8318 mb->method->save_lmf = 1;
8321 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8324 csig = mono_metadata_signature_dup_full (image, sig);
8327 new_key = g_new (SignaturePointerPair,1);
8328 new_key->sig = csig;
8329 new_key->pointer = func;
8331 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
8337 mono_marshal_set_wrapper_info (res, NULL);
8343 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8347 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8349 MonoMethodSignature *sig, *csig;
8350 MonoMethodBuilder *mb;
8355 MonoMethodPInvoke mpiinfo;
8356 MonoMethodPInvoke *piinfo = &mpiinfo;
8357 MonoMarshalSpec **mspecs;
8358 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8359 MonoImage *image = invoke->klass->image;
8362 // FIXME: include UnmanagedFunctionPointerAttribute info
8365 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8367 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8369 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8372 memset (&mpiinfo, 0, sizeof (mpiinfo));
8373 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8375 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8376 mono_method_get_marshal_info (invoke, mspecs);
8377 /* Freed below so don't alloc from mempool */
8378 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8381 name = g_strdup_printf ("wrapper_aot_native");
8382 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8383 mb->method->save_lmf = 1;
8386 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8389 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8390 info->d.managed_to_native.method = invoke;
8392 g_assert (!sig->hasthis);
8393 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8395 res = mono_mb_create_and_cache_full (cache, invoke,
8396 mb, csig, csig->param_count + 16,
8400 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8402 mono_metadata_free_marshal_spec (mspecs [i]);
8410 * mono_marshal_emit_managed_wrapper:
8412 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8413 * the delegate which wraps the managed method to be called. For closed delegates,
8414 * it could have fewer parameters than the method it wraps.
8415 * THIS_LOC is the memory location where the target of the delegate is stored.
8418 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8421 MonoMethodSignature *sig, *csig;
8427 /* we first do all conversions */
8428 for (i = 0; i < sig->param_count; i ++) {
8429 MonoType *t = sig->params [i];
8432 case MONO_TYPE_OBJECT:
8433 case MONO_TYPE_CLASS:
8434 case MONO_TYPE_VALUETYPE:
8435 case MONO_TYPE_ARRAY:
8436 case MONO_TYPE_SZARRAY:
8437 case MONO_TYPE_STRING:
8438 case MONO_TYPE_BOOLEAN:
8439 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8443 if (!sig->ret->byref) {
8444 switch (sig->ret->type) {
8445 case MONO_TYPE_STRING:
8446 csig->ret = &mono_defaults.int_class->byval_arg;
8453 MonoMethodSignature *sig, *csig;
8454 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8455 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8456 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8457 gboolean closed = FALSE;
8462 /* allocate local 0 (pointer) src_ptr */
8463 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8464 /* allocate local 1 (pointer) dst_ptr */
8465 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8466 /* allocate local 2 (boolean) delete_old */
8467 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8469 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8470 /* Closed delegate */
8471 g_assert (sig->param_count == invoke_sig->param_count + 1);
8473 /* Use a new signature without the first argument */
8474 sig = mono_metadata_signature_dup (sig);
8475 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8476 sig->param_count --;
8479 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8480 /* allocate local 3 to store the return value */
8481 mono_mb_add_local (mb, sig->ret);
8484 if (MONO_TYPE_ISSTRUCT (sig->ret))
8485 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8487 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8488 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8490 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8491 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8496 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8497 * mono_threads_attach_coop ();
8501 * ret = method (...);
8502 * } catch (Exception e) {
8503 * ex = mono_gchandle_new (e, false);
8505 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8506 * mono_threads_detach_coop ();
8509 * mono_marshal_ftnptr_eh_callback (ex);
8515 clauses = g_new0 (MonoExceptionClause, 2);
8517 clause_catch = &clauses [0];
8518 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8519 clause_catch->data.catch_class = mono_defaults.exception_class;
8521 clause_finally = &clauses [1];
8522 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8524 mono_mb_emit_icon (mb, 0);
8525 mono_mb_emit_stloc (mb, 2);
8527 mono_mb_emit_icon (mb, -1);
8528 mono_mb_emit_byte (mb, CEE_CONV_U4);
8529 mono_mb_emit_stloc (mb, ex_local);
8532 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8534 if (!mono_threads_is_coop_enabled ()) {
8535 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8536 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8538 /* mono_threads_attach_coop (); */
8539 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8540 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8541 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8542 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8543 mono_mb_emit_stloc (mb, attach_cookie_local);
8546 /* <interrupt check> */
8547 emit_thread_interrupt_checkpoint (mb);
8549 /* we first do all conversions */
8550 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8551 for (i = 0; i < sig->param_count; i ++) {
8552 MonoType *t = sig->params [i];
8555 case MONO_TYPE_OBJECT:
8556 case MONO_TYPE_CLASS:
8557 case MONO_TYPE_VALUETYPE:
8558 case MONO_TYPE_ARRAY:
8559 case MONO_TYPE_SZARRAY:
8560 case MONO_TYPE_STRING:
8561 case MONO_TYPE_BOOLEAN:
8562 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8572 if (target_handle) {
8573 mono_mb_emit_icon (mb, (gint32)target_handle);
8574 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8577 g_assert_not_reached ();
8579 } else if (closed) {
8580 mono_mb_emit_icon (mb, (gint32)target_handle);
8581 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8584 for (i = 0; i < sig->param_count; i++) {
8585 MonoType *t = sig->params [i];
8587 if (tmp_locals [i]) {
8589 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8591 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8594 mono_mb_emit_ldarg (mb, i);
8597 /* ret = method (...) */
8598 mono_mb_emit_managed_call (mb, method, NULL);
8600 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8601 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8602 mono_class_init (klass);
8603 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
8604 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8605 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8606 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8607 mono_mb_emit_stloc (mb, m->vtaddr_var);
8611 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8612 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8613 } else if (!sig->ret->byref) {
8614 switch (sig->ret->type) {
8615 case MONO_TYPE_VOID:
8617 case MONO_TYPE_BOOLEAN:
8620 case MONO_TYPE_CHAR:
8632 case MONO_TYPE_OBJECT:
8633 mono_mb_emit_stloc (mb, 3);
8635 case MONO_TYPE_STRING:
8636 csig->ret = &mono_defaults.int_class->byval_arg;
8637 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8639 case MONO_TYPE_VALUETYPE:
8640 case MONO_TYPE_CLASS:
8641 case MONO_TYPE_SZARRAY:
8642 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8645 g_warning ("return type 0x%02x unknown", sig->ret->type);
8646 g_assert_not_reached ();
8649 mono_mb_emit_stloc (mb, 3);
8652 /* Convert byref arguments back */
8653 for (i = 0; i < sig->param_count; i ++) {
8654 MonoType *t = sig->params [i];
8655 MonoMarshalSpec *spec = mspecs [i + 1];
8657 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8658 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8660 else if (t->byref) {
8662 case MONO_TYPE_CLASS:
8663 case MONO_TYPE_VALUETYPE:
8664 case MONO_TYPE_OBJECT:
8665 case MONO_TYPE_STRING:
8666 case MONO_TYPE_BOOLEAN:
8667 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8673 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8674 /* The [Out] information is encoded in the delegate signature */
8676 case MONO_TYPE_SZARRAY:
8677 case MONO_TYPE_CLASS:
8678 case MONO_TYPE_VALUETYPE:
8679 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8682 g_assert_not_reached ();
8687 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8691 /* catch (Exception e) { */
8692 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8693 clause_catch->handler_offset = mono_mb_get_label (mb);
8695 mono_mb_emit_stloc (mb, e_local);
8697 /* ex = mono_gchandle_new (e, false); */
8698 mono_mb_emit_ldloc (mb, e_local);
8699 mono_mb_emit_icon (mb, 0);
8700 mono_mb_emit_icall (mb, mono_gchandle_new);
8701 mono_mb_emit_stloc (mb, ex_local);
8703 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8706 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8709 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8710 clause_finally->handler_offset = mono_mb_get_label (mb);
8712 if (!mono_threads_is_coop_enabled ()) {
8713 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8714 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8716 /* mono_threads_detach_coop (); */
8717 mono_mb_emit_ldloc (mb, attach_cookie_local);
8718 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8719 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8723 mono_mb_emit_ldloc (mb, ex_local);
8724 mono_mb_emit_icon (mb, -1);
8725 mono_mb_emit_byte (mb, CEE_CONV_U4);
8726 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8728 /* mono_marshal_ftnptr_eh_callback (ex) */
8729 mono_mb_emit_ldloc (mb, ex_local);
8730 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8733 mono_mb_patch_branch (mb, ex_m1_pos);
8735 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8737 /* } [endfinally] */
8738 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8740 mono_mb_patch_branch (mb, leave_try_pos);
8741 mono_mb_patch_branch (mb, leave_catch_pos);
8744 if (m->retobj_var) {
8745 mono_mb_emit_ldloc (mb, m->retobj_var);
8746 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8747 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8750 if (!MONO_TYPE_IS_VOID(sig->ret))
8751 mono_mb_emit_ldloc (mb, 3);
8752 mono_mb_emit_byte (mb, CEE_RET);
8755 mono_mb_set_clauses (mb, 2, clauses);
8763 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8765 MonoMethodSignature *sig;
8770 * Under windows, delegates passed to native code must use the STDCALL
8771 * calling convention.
8773 csig->call_convention = MONO_CALL_STDCALL;
8776 sig = mono_method_signature (method);
8778 /* Change default calling convention if needed */
8779 /* Why is this a modopt ? */
8780 if (sig->ret && sig->ret->num_mods) {
8781 for (i = 0; i < sig->ret->num_mods; ++i) {
8783 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8784 g_assert (mono_error_ok (&error));
8785 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8786 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8787 csig->call_convention = MONO_CALL_C;
8788 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8789 csig->call_convention = MONO_CALL_STDCALL;
8790 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8791 csig->call_convention = MONO_CALL_FASTCALL;
8792 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8793 csig->call_convention = MONO_CALL_THISCALL;
8800 * mono_marshal_get_managed_wrapper:
8801 * Generates IL code to call managed methods from unmanaged code
8802 * If \p target_handle is \c 0, the wrapper info will be a \c WrapperInfo structure.
8805 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle, MonoError *error)
8807 MonoMethodSignature *sig, *csig, *invoke_sig;
8808 MonoMethodBuilder *mb;
8809 MonoMethod *res, *invoke;
8810 MonoMarshalSpec **mspecs;
8811 MonoMethodPInvoke piinfo;
8814 EmitMarshalContext m;
8816 g_assert (method != NULL);
8819 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
8820 mono_error_set_invalid_program (error, "Failed because method (%s) marked PInvokeCallback (managed method) and extern (unmanaged) simultaneously.", mono_method_full_name (method, TRUE));
8825 * FIXME: Should cache the method+delegate type pair, since the same method
8826 * could be called with different delegates, thus different marshalling
8829 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8831 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8834 invoke = mono_get_delegate_invoke (delegate_klass);
8835 invoke_sig = mono_method_signature (invoke);
8837 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8838 mono_method_get_marshal_info (invoke, mspecs);
8840 sig = mono_method_signature (method);
8842 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8844 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8845 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8847 /* we copy the signature, so that we can modify it */
8849 /* Need to free this later */
8850 csig = mono_metadata_signature_dup (invoke_sig);
8852 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8856 memset (&m, 0, sizeof (m));
8862 m.image = method->klass->image;
8864 mono_marshal_set_callconv_from_modopt (invoke, csig);
8866 /* The attribute is only available in Net 2.0 */
8867 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8868 MonoCustomAttrInfo *cinfo;
8869 MonoCustomAttrEntry *attr;
8872 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8873 * contents of the attribute without constructing it, as that might not be
8874 * possible when running in cross-compiling mode.
8876 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, error);
8877 mono_error_assert_ok (error);
8880 for (i = 0; i < cinfo->num_attrs; ++i) {
8881 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8882 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8883 attr = &cinfo->attrs [i];
8889 MonoArray *typed_args, *named_args;
8890 CattrNamedArg *arginfo;
8894 MonoBoolean set_last_error = 0;
8897 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8898 g_assert (mono_error_ok (&error));
8899 g_assert (mono_array_length (typed_args) == 1);
8902 o = mono_array_get (typed_args, MonoObject*, 0);
8903 call_conv = *(gint32*)mono_object_unbox (o);
8906 for (i = 0; i < mono_array_length (named_args); ++i) {
8907 CattrNamedArg *narg = &arginfo [i];
8909 o = mono_array_get (named_args, MonoObject*, i);
8911 g_assert (narg->field);
8912 if (!strcmp (narg->field->name, "CharSet")) {
8913 charset = *(gint32*)mono_object_unbox (o);
8914 } else if (!strcmp (narg->field->name, "SetLastError")) {
8915 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8916 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8917 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8918 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8919 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8921 g_assert_not_reached ();
8927 memset (&piinfo, 0, sizeof (piinfo));
8929 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8931 csig->call_convention = call_conv - 1;
8934 if (cinfo && !cinfo->cached)
8935 mono_custom_attrs_free (cinfo);
8938 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8940 if (!target_handle) {
8943 // FIXME: Associate it with the method+delegate_klass pair
8944 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8945 info->d.native_to_managed.method = method;
8946 info->d.native_to_managed.klass = delegate_klass;
8948 res = mono_mb_create_and_cache_full (cache, method,
8949 mb, csig, sig->param_count + 16,
8955 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8959 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8961 mono_metadata_free_marshal_spec (mspecs [i]);
8964 /* mono_method_print_code (res); */
8970 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8974 MonoMethodSignature *sig;
8975 MonoMethodBuilder *mb;
8980 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8982 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8985 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8986 MonoMethodSignature *csig;
8987 MonoMarshalSpec **mspecs;
8988 EmitMarshalContext m;
8990 sig = mono_method_signature (method);
8991 g_assert (!sig->hasthis);
8993 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8994 mono_method_get_marshal_info (method, mspecs);
8996 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8997 csig = mono_metadata_signature_dup_full (image, sig);
9001 memset (&m, 0, sizeof (m));
9009 mono_marshal_set_callconv_from_modopt (method, csig);
9011 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9013 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
9018 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
9021 for (i = sig->param_count; i >= 0; i--)
9023 mono_metadata_free_marshal_spec (mspecs [i]);
9026 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
9027 mono_error_assert_ok (&error);
9028 return compiled_ptr;
9031 sig = mono_method_signature (method);
9032 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9034 param_count = sig->param_count + sig->hasthis;
9036 for (i = 0; i < param_count; i++)
9037 mono_mb_emit_ldarg (mb, i);
9039 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9040 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9042 mono_mb_emit_op (mb, CEE_CALL, method);
9043 mono_mb_emit_byte (mb, CEE_RET);
9048 method = mono_mb_create (mb, sig, param_count, NULL);
9051 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
9052 mono_error_assert_ok (&error);
9053 return compiled_ptr;
9059 * The code directly following this is the cache hit, value positive branch
9061 * This function takes a new method builder with 0 locals and adds two locals
9062 * to create multiple out-branches and the fall through state of having the object
9063 * on the stack after a cache miss
9066 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
9067 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
9068 MonoMethodBuilder *mb)
9072 /* allocate local 0 (pointer) obj_vtable */
9073 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9074 /* allocate local 1 (pointer) cached_vtable */
9075 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9078 mono_mb_emit_ldarg (mb, obj_arg_position);
9079 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
9081 /*obj_vtable = obj->vtable;*/
9082 mono_mb_emit_ldarg (mb, obj_arg_position);
9083 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9084 mono_mb_emit_byte (mb, CEE_LDIND_I);
9085 mono_mb_emit_stloc (mb, 0);
9087 /* cached_vtable = *cache*/
9088 mono_mb_emit_ldarg (mb, cache_arg_position);
9089 mono_mb_emit_byte (mb, CEE_LDIND_I);
9090 mono_mb_emit_stloc (mb, 1);
9092 mono_mb_emit_ldloc (mb, 1);
9093 mono_mb_emit_byte (mb, CEE_LDC_I4);
9094 mono_mb_emit_i4 (mb, ~0x1);
9095 mono_mb_emit_byte (mb, CEE_CONV_I);
9096 mono_mb_emit_byte (mb, CEE_AND);
9097 mono_mb_emit_ldloc (mb, 0);
9098 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9099 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9101 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9102 mono_mb_emit_ldloc (mb, 1);
9103 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9104 mono_mb_emit_byte (mb, CEE_CONV_U);
9105 mono_mb_emit_byte (mb, CEE_AND);
9106 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
9107 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9110 mono_mb_patch_branch (mb, cache_miss_pos);
9113 mono_mb_emit_ldarg (mb, obj_arg_position);
9114 mono_mb_emit_ldarg (mb, class_arg_position);
9115 mono_mb_emit_ldarg (mb, cache_arg_position);
9116 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
9119 #endif /* DISABLE_JIT */
9122 * mono_marshal_get_castclass_with_cache:
9123 * This does the equivalent of \c mono_object_castclass_with_cache.
9126 mono_marshal_get_castclass_with_cache (void)
9128 static MonoMethod *cached;
9130 MonoMethodBuilder *mb;
9131 MonoMethodSignature *sig;
9132 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
9135 const int obj_arg_position = 0;
9136 const int class_arg_position = 1;
9137 const int cache_arg_position = 2;
9142 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9143 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9144 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9145 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9146 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9147 sig->ret = &mono_defaults.object_class->byval_arg;
9151 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9152 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9153 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9156 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9157 mono_mb_emit_ldarg (mb, obj_arg_position);
9158 mono_mb_emit_byte (mb, CEE_RET);
9161 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9162 mono_mb_patch_branch (mb, invalid_cast_pos);
9163 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9166 mono_mb_patch_branch (mb, return_null_pos);
9167 mono_mb_emit_byte (mb, CEE_LDNULL);
9168 mono_mb_emit_byte (mb, CEE_RET);
9169 #endif /* DISABLE_JIT */
9171 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9172 res = mono_mb_create (mb, sig, 8, info);
9175 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9176 mono_free_method (res);
9177 mono_metadata_free_method_signature (sig);
9184 /* this is an icall */
9186 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
9189 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
9190 if (mono_error_set_pending_exception (&error))
9193 if (mono_object_is_transparent_proxy (obj))
9196 uintptr_t cache_update = (uintptr_t)obj->vtable;
9198 cache_update = cache_update | 0x1;
9200 *cache = cache_update;
9206 * mono_marshal_get_isinst_with_cache:
9207 * This does the equivalent of \c mono_marshal_isinst_with_cache.
9210 mono_marshal_get_isinst_with_cache (void)
9212 static MonoMethod *cached;
9214 MonoMethodBuilder *mb;
9215 MonoMethodSignature *sig;
9216 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
9219 const int obj_arg_position = 0;
9220 const int class_arg_position = 1;
9221 const int cache_arg_position = 2;
9226 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9227 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9229 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9231 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9233 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9234 sig->ret = &mono_defaults.object_class->byval_arg;
9238 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9239 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9240 // Return the object gotten via the slow path.
9241 mono_mb_emit_byte (mb, CEE_RET);
9244 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9245 mono_mb_patch_branch (mb, return_null_pos);
9246 mono_mb_emit_byte (mb, CEE_LDNULL);
9247 mono_mb_emit_byte (mb, CEE_RET);
9250 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9251 mono_mb_emit_ldarg (mb, obj_arg_position);
9252 mono_mb_emit_byte (mb, CEE_RET);
9255 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9256 res = mono_mb_create (mb, sig, 8, info);
9259 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9260 mono_free_method (res);
9261 mono_metadata_free_method_signature (sig);
9269 * mono_marshal_get_struct_to_ptr:
9270 * \param klass \c MonoClass
9272 * Generates IL code for <code>StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)</code>
9275 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9277 MonoMethodBuilder *mb;
9278 static MonoMethod *stoptr = NULL;
9282 g_assert (klass != NULL);
9284 mono_marshal_load_type_info (klass);
9286 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9287 if (marshal_info->str_to_ptr)
9288 return marshal_info->str_to_ptr;
9291 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9294 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9297 if (klass->blittable) {
9298 mono_mb_emit_byte (mb, CEE_LDARG_1);
9299 mono_mb_emit_byte (mb, CEE_LDARG_0);
9300 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9301 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9302 mono_mb_emit_byte (mb, CEE_PREFIX1);
9303 mono_mb_emit_byte (mb, CEE_CPBLK);
9306 /* allocate local 0 (pointer) src_ptr */
9307 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9308 /* allocate local 1 (pointer) dst_ptr */
9309 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9310 /* allocate local 2 (boolean) delete_old */
9311 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9312 mono_mb_emit_byte (mb, CEE_LDARG_2);
9313 mono_mb_emit_stloc (mb, 2);
9315 /* initialize src_ptr to point to the start of object data */
9316 mono_mb_emit_byte (mb, CEE_LDARG_0);
9317 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9318 mono_mb_emit_stloc (mb, 0);
9320 /* initialize dst_ptr */
9321 mono_mb_emit_byte (mb, CEE_LDARG_1);
9322 mono_mb_emit_stloc (mb, 1);
9324 emit_struct_conv (mb, klass, FALSE);
9327 mono_mb_emit_byte (mb, CEE_RET);
9329 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9330 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9333 mono_marshal_lock ();
9334 if (!marshal_info->str_to_ptr)
9335 marshal_info->str_to_ptr = res;
9337 res = marshal_info->str_to_ptr;
9338 mono_marshal_unlock ();
9343 * mono_marshal_get_ptr_to_struct:
9344 * \param klass \c MonoClass
9345 * Generates IL code for <code>PtrToStructure (IntPtr src, object structure)</code>
9348 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9350 MonoMethodBuilder *mb;
9351 static MonoMethodSignature *ptostr = NULL;
9355 g_assert (klass != NULL);
9357 mono_marshal_load_type_info (klass);
9359 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9360 if (marshal_info->ptr_to_str)
9361 return marshal_info->ptr_to_str;
9364 MonoMethodSignature *sig;
9366 /* Create the signature corresponding to
9367 static void PtrToStructure (IntPtr ptr, object structure);
9368 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9369 sig = mono_create_icall_signature ("void ptr object");
9370 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9372 mono_memory_barrier ();
9376 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9379 if (klass->blittable) {
9380 mono_mb_emit_byte (mb, CEE_LDARG_1);
9381 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9382 mono_mb_emit_byte (mb, CEE_LDARG_0);
9383 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9384 mono_mb_emit_byte (mb, CEE_PREFIX1);
9385 mono_mb_emit_byte (mb, CEE_CPBLK);
9388 /* allocate local 0 (pointer) src_ptr */
9389 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9390 /* allocate local 1 (pointer) dst_ptr */
9391 mono_mb_add_local (mb, &klass->this_arg);
9393 /* initialize src_ptr to point to the start of object data */
9394 mono_mb_emit_byte (mb, CEE_LDARG_0);
9395 mono_mb_emit_stloc (mb, 0);
9397 /* initialize dst_ptr */
9398 mono_mb_emit_byte (mb, CEE_LDARG_1);
9399 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9400 mono_mb_emit_stloc (mb, 1);
9402 emit_struct_conv (mb, klass, TRUE);
9405 mono_mb_emit_byte (mb, CEE_RET);
9407 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9408 res = mono_mb_create (mb, ptostr, 0, info);
9411 mono_marshal_lock ();
9412 if (!marshal_info->ptr_to_str)
9413 marshal_info->ptr_to_str = res;
9415 res = marshal_info->ptr_to_str;
9416 mono_marshal_unlock ();
9421 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9422 * This is used to avoid infinite recursion since it is hard to determine where to
9423 * replace a method with its synchronized wrapper, and where not.
9424 * The runtime should execute METHOD instead of the wrapper.
9427 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9429 MonoMethodBuilder *mb;
9431 MonoMethodSignature *sig;
9433 MonoGenericContext *ctx = NULL;
9434 MonoGenericContainer *container = NULL;
9436 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9437 ctx = &((MonoMethodInflated*)method)->context;
9438 method = ((MonoMethodInflated*)method)->declaring;
9439 container = mono_method_get_generic_container (method);
9441 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9442 g_assert (container);
9445 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9447 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9448 mono_mb_emit_byte (mb, CEE_RET);
9450 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9452 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9453 info->d.synchronized_inner.method = method;
9454 res = mono_mb_create (mb, sig, 0, info);
9458 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9459 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9465 * mono_marshal_get_synchronized_wrapper:
9466 * Generates IL code for the synchronized wrapper: the generated method
9467 * calls \p method while locking \c this or the parent type.
9470 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9472 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9473 MonoMethodSignature *sig;
9474 MonoExceptionClause *clause;
9475 MonoMethodBuilder *mb;
9479 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9480 MonoGenericContext *ctx = NULL;
9481 MonoMethod *orig_method = NULL;
9482 MonoGenericContainer *container = NULL;
9486 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9489 /* FIXME: Support generic methods too */
9490 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9491 orig_method = method;
9492 ctx = &((MonoMethodInflated*)method)->context;
9493 method = ((MonoMethodInflated*)method)->declaring;
9494 container = mono_method_get_generic_container (method);
9496 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9497 g_assert (container);
9504 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9505 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9509 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9510 if ((res = mono_marshal_find_in_cache (cache, method)))
9514 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9517 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9519 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9520 info->d.synchronized.method = method;
9523 mb->skip_visibility = 1;
9525 if (!MONO_TYPE_IS_VOID (sig->ret))
9526 ret_local = mono_mb_add_local (mb, sig->ret);
9529 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9530 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9531 mono_class_set_type_load_failure (method->klass, "");
9533 /* This will throw the type load exception when the wrapper is compiled */
9534 mono_mb_emit_byte (mb, CEE_LDNULL);
9535 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9536 mono_mb_emit_byte (mb, CEE_POP);
9538 if (!MONO_TYPE_IS_VOID (sig->ret))
9539 mono_mb_emit_ldloc (mb, ret_local);
9540 mono_mb_emit_byte (mb, CEE_RET);
9543 res = mono_mb_create_and_cache_full (cache, method,
9544 mb, sig, sig->param_count + 16, info, NULL);
9552 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9553 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9555 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9556 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9559 mono_marshal_lock ();
9561 if (!enter_method) {
9562 MonoMethodDesc *desc;
9564 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9565 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9566 g_assert (enter_method);
9567 mono_method_desc_free (desc);
9569 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9570 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9571 g_assert (exit_method);
9572 mono_method_desc_free (desc);
9574 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9575 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9576 g_assert (gettypefromhandle_method);
9577 mono_method_desc_free (desc);
9580 mono_marshal_unlock ();
9583 /* Push this or the type object */
9584 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9585 /* We have special handling for this in the JIT */
9586 int index = mono_mb_add_data (mb, method->klass);
9587 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9588 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9589 mono_mb_emit_i4 (mb, index);
9591 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9594 mono_mb_emit_ldarg (mb, 0);
9595 mono_mb_emit_stloc (mb, this_local);
9597 /* Call Monitor::Enter() */
9598 mono_mb_emit_ldloc (mb, this_local);
9599 mono_mb_emit_ldloc_addr (mb, taken_local);
9600 mono_mb_emit_managed_call (mb, enter_method, NULL);
9602 clause->try_offset = mono_mb_get_label (mb);
9604 /* Call the method */
9606 mono_mb_emit_ldarg (mb, 0);
9607 for (i = 0; i < sig->param_count; i++)
9608 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9612 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9613 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9615 mono_mb_emit_managed_call (mb, method, NULL);
9618 if (!MONO_TYPE_IS_VOID (sig->ret))
9619 mono_mb_emit_stloc (mb, ret_local);
9621 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9623 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9624 clause->handler_offset = mono_mb_get_label (mb);
9626 /* Call Monitor::Exit() if needed */
9627 mono_mb_emit_ldloc (mb, taken_local);
9628 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9629 mono_mb_emit_ldloc (mb, this_local);
9630 mono_mb_emit_managed_call (mb, exit_method, NULL);
9631 mono_mb_patch_branch (mb, pos2);
9632 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9634 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9636 mono_mb_patch_branch (mb, pos);
9637 if (!MONO_TYPE_IS_VOID (sig->ret))
9638 mono_mb_emit_ldloc (mb, ret_local);
9639 mono_mb_emit_byte (mb, CEE_RET);
9641 mono_mb_set_clauses (mb, 1, clause);
9646 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9647 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9649 res = mono_mb_create_and_cache_full (cache, method,
9650 mb, sig, sig->param_count + 16, info, NULL);
9659 * mono_marshal_get_unbox_wrapper:
9660 * The returned method calls \p method unboxing the \c this argument.
9663 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9665 MonoMethodSignature *sig = mono_method_signature (method);
9667 MonoMethodBuilder *mb;
9672 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9674 if ((res = mono_marshal_find_in_cache (cache, method)))
9677 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9679 g_assert (sig->hasthis);
9682 mono_mb_emit_ldarg (mb, 0);
9683 mono_mb_emit_icon (mb, sizeof (MonoObject));
9684 mono_mb_emit_byte (mb, CEE_ADD);
9685 for (i = 0; i < sig->param_count; ++i)
9686 mono_mb_emit_ldarg (mb, i + 1);
9687 mono_mb_emit_managed_call (mb, method, NULL);
9688 mono_mb_emit_byte (mb, CEE_RET);
9691 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9692 info->d.unbox.method = method;
9694 res = mono_mb_create_and_cache_full (cache, method,
9695 mb, sig, sig->param_count + 16, info, NULL);
9698 /* mono_method_print_code (res); */
9704 STELEMREF_OBJECT, /*no check at all*/
9705 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9706 STELEMREF_CLASS, /*only the klass->parents check*/
9707 STELEMREF_CLASS_SMALL_IDEPTH, /* like STELEMREF_CLASS bit without the idepth check */
9708 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9709 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9710 STELEMREF_KIND_COUNT
9713 static const char *strelemref_wrapper_name[] = {
9714 "object", "sealed_class", "class", "class_small_idepth", "interface", "complex"
9718 is_monomorphic_array (MonoClass *klass)
9720 MonoClass *element_class;
9721 if (klass->rank != 1)
9724 element_class = klass->element_class;
9725 return mono_class_is_sealed (element_class) || element_class->valuetype;
9729 get_virtual_stelemref_kind (MonoClass *element_class)
9731 if (element_class == mono_defaults.object_class)
9732 return STELEMREF_OBJECT;
9733 if (is_monomorphic_array (element_class))
9734 return STELEMREF_SEALED_CLASS;
9735 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9736 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9737 #ifdef COMPRESSED_INTERFACE_BITMAP
9738 return STELEMREF_COMPLEX;
9740 return STELEMREF_INTERFACE;
9742 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9743 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9744 return STELEMREF_COMPLEX;
9745 if (mono_class_is_sealed (element_class))
9746 return STELEMREF_SEALED_CLASS;
9747 if (element_class->idepth <= MONO_DEFAULT_SUPERTABLE_SIZE)
9748 return STELEMREF_CLASS_SMALL_IDEPTH;
9750 return STELEMREF_CLASS;
9756 load_array_element_address (MonoMethodBuilder *mb)
9758 mono_mb_emit_ldarg (mb, 0);
9759 mono_mb_emit_ldarg (mb, 1);
9760 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9764 load_array_class (MonoMethodBuilder *mb, int aklass)
9766 mono_mb_emit_ldarg (mb, 0);
9767 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9768 mono_mb_emit_byte (mb, CEE_LDIND_I);
9769 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9770 mono_mb_emit_byte (mb, CEE_LDIND_I);
9771 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9772 mono_mb_emit_byte (mb, CEE_LDIND_I);
9773 mono_mb_emit_stloc (mb, aklass);
9777 load_value_class (MonoMethodBuilder *mb, int vklass)
9779 mono_mb_emit_ldarg (mb, 2);
9780 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9781 mono_mb_emit_byte (mb, CEE_LDIND_I);
9782 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9783 mono_mb_emit_byte (mb, CEE_LDIND_I);
9784 mono_mb_emit_stloc (mb, vklass);
9790 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9792 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9793 printf ("slow vstore of %s\n", name);
9800 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9801 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9802 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9803 * - Add a case for arrays of arrays.
9806 get_virtual_stelemref_wrapper (int kind)
9808 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9809 static MonoMethodSignature *signature;
9810 MonoMethodBuilder *mb;
9813 const char *param_names [16];
9814 guint32 b1, b2, b3, b4;
9815 int aklass, vklass, vtable, uiid;
9816 int array_slot_addr;
9819 if (cached_methods [kind])
9820 return cached_methods [kind];
9822 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9823 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9827 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9829 /* void this::stelemref (size_t idx, void* value) */
9830 sig->ret = &mono_defaults.void_class->byval_arg;
9831 sig->hasthis = TRUE;
9832 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9833 sig->params [1] = &mono_defaults.object_class->byval_arg;
9838 param_names [0] = "index";
9839 param_names [1] = "value";
9840 mono_mb_set_param_names (mb, param_names);
9842 /*For now simply call plain old stelemref*/
9844 case STELEMREF_OBJECT:
9845 /* ldelema (implicit bound check) */
9846 load_array_element_address (mb);
9848 mono_mb_emit_ldarg (mb, 2);
9849 mono_mb_emit_byte (mb, CEE_STIND_REF);
9850 mono_mb_emit_byte (mb, CEE_RET);
9853 case STELEMREF_COMPLEX: {
9856 <ldelema (bound check)>
9859 if (!mono_object_isinst (value, aklass))
9863 *array_slot_addr = value;
9866 throw new ArrayTypeMismatchException ();
9869 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9870 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9871 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9875 /*Use this to debug/record stores that are going thru the slow path*/
9876 MonoMethodSignature *csig;
9877 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9878 csig->ret = &mono_defaults.void_class->byval_arg;
9879 csig->params [0] = &mono_defaults.object_class->byval_arg;
9880 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9881 csig->params [2] = &mono_defaults.object_class->byval_arg;
9882 mono_mb_emit_ldarg (mb, 0);
9883 mono_mb_emit_ldarg (mb, 1);
9884 mono_mb_emit_ldarg (mb, 2);
9885 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9889 /* ldelema (implicit bound check) */
9890 load_array_element_address (mb);
9891 mono_mb_emit_stloc (mb, array_slot_addr);
9893 /* if (!value) goto do_store */
9894 mono_mb_emit_ldarg (mb, 2);
9895 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9897 /* aklass = array->vtable->klass->element_class */
9898 load_array_class (mb, aklass);
9899 /* vklass = value->vtable->klass */
9900 load_value_class (mb, vklass);
9903 mono_mb_emit_ldloc (mb, vklass);
9904 mono_mb_emit_ldloc (mb, aklass);
9905 b_fast = mono_mb_emit_branch (mb, CEE_BEQ);
9907 /*if (mono_object_isinst (value, aklass)) */
9908 mono_mb_emit_ldarg (mb, 2);
9909 mono_mb_emit_ldloc (mb, aklass);
9910 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9911 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9914 mono_mb_patch_branch (mb, b1);
9915 mono_mb_patch_branch (mb, b_fast);
9916 mono_mb_emit_ldloc (mb, array_slot_addr);
9917 mono_mb_emit_ldarg (mb, 2);
9918 mono_mb_emit_byte (mb, CEE_STIND_REF);
9919 mono_mb_emit_byte (mb, CEE_RET);
9922 mono_mb_patch_branch (mb, b2);
9924 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9927 case STELEMREF_SEALED_CLASS:
9929 <ldelema (bound check)>
9933 aklass = array->vtable->klass->element_class;
9934 vklass = value->vtable->klass;
9936 if (vklass != aklass)
9940 *array_slot_addr = value;
9943 throw new ArrayTypeMismatchException ();
9945 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9946 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9947 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9949 /* ldelema (implicit bound check) */
9950 load_array_element_address (mb);
9951 mono_mb_emit_stloc (mb, array_slot_addr);
9953 /* if (!value) goto do_store */
9954 mono_mb_emit_ldarg (mb, 2);
9955 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9957 /* aklass = array->vtable->klass->element_class */
9958 load_array_class (mb, aklass);
9960 /* vklass = value->vtable->klass */
9961 load_value_class (mb, vklass);
9963 /*if (vklass != aklass) goto do_exception; */
9964 mono_mb_emit_ldloc (mb, aklass);
9965 mono_mb_emit_ldloc (mb, vklass);
9966 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9969 mono_mb_patch_branch (mb, b1);
9970 mono_mb_emit_ldloc (mb, array_slot_addr);
9971 mono_mb_emit_ldarg (mb, 2);
9972 mono_mb_emit_byte (mb, CEE_STIND_REF);
9973 mono_mb_emit_byte (mb, CEE_RET);
9976 mono_mb_patch_branch (mb, b2);
9977 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9980 case STELEMREF_CLASS: {
9983 <ldelema (bound check)>
9987 aklass = array->vtable->klass->element_class;
9988 vklass = value->vtable->klass;
9990 if (vklass->idepth < aklass->idepth)
9993 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9997 *array_slot_addr = value;
10001 throw new ArrayTypeMismatchException ();
10003 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10004 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10005 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10007 /* ldelema (implicit bound check) */
10008 load_array_element_address (mb);
10009 mono_mb_emit_stloc (mb, array_slot_addr);
10011 /* if (!value) goto do_store */
10012 mono_mb_emit_ldarg (mb, 2);
10013 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10015 /* aklass = array->vtable->klass->element_class */
10016 load_array_class (mb, aklass);
10018 /* vklass = value->vtable->klass */
10019 load_value_class (mb, vklass);
10021 /* if (vklass->idepth < aklass->idepth) goto failue */
10022 mono_mb_emit_ldloc (mb, vklass);
10023 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10024 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10026 mono_mb_emit_ldloc (mb, aklass);
10027 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10028 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10030 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10032 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10033 mono_mb_emit_ldloc (mb, vklass);
10034 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10035 mono_mb_emit_byte (mb, CEE_LDIND_I);
10037 mono_mb_emit_ldloc (mb, aklass);
10038 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10039 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10040 mono_mb_emit_icon (mb, 1);
10041 mono_mb_emit_byte (mb, CEE_SUB);
10042 mono_mb_emit_icon (mb, sizeof (void*));
10043 mono_mb_emit_byte (mb, CEE_MUL);
10044 mono_mb_emit_byte (mb, CEE_ADD);
10045 mono_mb_emit_byte (mb, CEE_LDIND_I);
10047 mono_mb_emit_ldloc (mb, aklass);
10048 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10051 mono_mb_patch_branch (mb, b1);
10052 mono_mb_emit_ldloc (mb, array_slot_addr);
10053 mono_mb_emit_ldarg (mb, 2);
10054 mono_mb_emit_byte (mb, CEE_STIND_REF);
10055 mono_mb_emit_byte (mb, CEE_RET);
10057 /* do_exception: */
10058 mono_mb_patch_branch (mb, b3);
10059 mono_mb_patch_branch (mb, b4);
10061 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10065 case STELEMREF_CLASS_SMALL_IDEPTH:
10068 <ldelema (bound check)>
10072 aklass = array->vtable->klass->element_class;
10073 vklass = value->vtable->klass;
10075 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10079 *array_slot_addr = value;
10083 throw new ArrayTypeMismatchException ();
10085 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10086 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10087 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10089 /* ldelema (implicit bound check) */
10090 load_array_element_address (mb);
10091 mono_mb_emit_stloc (mb, array_slot_addr);
10093 /* if (!value) goto do_store */
10094 mono_mb_emit_ldarg (mb, 2);
10095 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10097 /* aklass = array->vtable->klass->element_class */
10098 load_array_class (mb, aklass);
10100 /* vklass = value->vtable->klass */
10101 load_value_class (mb, vklass);
10103 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10104 mono_mb_emit_ldloc (mb, vklass);
10105 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10106 mono_mb_emit_byte (mb, CEE_LDIND_I);
10108 mono_mb_emit_ldloc (mb, aklass);
10109 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10110 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10111 mono_mb_emit_icon (mb, 1);
10112 mono_mb_emit_byte (mb, CEE_SUB);
10113 mono_mb_emit_icon (mb, sizeof (void*));
10114 mono_mb_emit_byte (mb, CEE_MUL);
10115 mono_mb_emit_byte (mb, CEE_ADD);
10116 mono_mb_emit_byte (mb, CEE_LDIND_I);
10118 mono_mb_emit_ldloc (mb, aklass);
10119 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10122 mono_mb_patch_branch (mb, b1);
10123 mono_mb_emit_ldloc (mb, array_slot_addr);
10124 mono_mb_emit_ldarg (mb, 2);
10125 mono_mb_emit_byte (mb, CEE_STIND_REF);
10126 mono_mb_emit_byte (mb, CEE_RET);
10128 /* do_exception: */
10129 mono_mb_patch_branch (mb, b4);
10131 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10134 case STELEMREF_INTERFACE:
10141 klass = array->obj.vtable->klass->element_class;
10142 vt = value->vtable;
10143 uiid = klass->interface_id;
10144 if (uiid > vt->max_interface_id)
10146 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10149 mono_array_setref (array, index, value);
10152 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10154 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10155 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10156 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10157 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10159 /* ldelema (implicit bound check) */
10160 load_array_element_address (mb);
10161 mono_mb_emit_stloc (mb, array_slot_addr);
10163 /* if (!value) goto do_store */
10164 mono_mb_emit_ldarg (mb, 2);
10165 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10167 /* klass = array->vtable->klass->element_class */
10168 load_array_class (mb, aklass);
10170 /* vt = value->vtable */
10171 mono_mb_emit_ldarg (mb, 2);
10172 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10173 mono_mb_emit_byte (mb, CEE_LDIND_I);
10174 mono_mb_emit_stloc (mb, vtable);
10176 /* uiid = klass->interface_id; */
10177 mono_mb_emit_ldloc (mb, aklass);
10178 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
10179 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10180 mono_mb_emit_stloc (mb, uiid);
10182 /*if (uiid > vt->max_interface_id)*/
10183 mono_mb_emit_ldloc (mb, uiid);
10184 mono_mb_emit_ldloc (mb, vtable);
10185 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
10186 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10187 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10189 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10191 /*vt->interface_bitmap*/
10192 mono_mb_emit_ldloc (mb, vtable);
10193 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10194 mono_mb_emit_byte (mb, CEE_LDIND_I);
10197 mono_mb_emit_ldloc (mb, uiid);
10198 mono_mb_emit_icon (mb, 3);
10199 mono_mb_emit_byte (mb, CEE_SHR_UN);
10201 /*vt->interface_bitmap [(uiid) >> 3]*/
10202 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10203 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10205 /*(1 << ((uiid)&7)))*/
10206 mono_mb_emit_icon (mb, 1);
10207 mono_mb_emit_ldloc (mb, uiid);
10208 mono_mb_emit_icon (mb, 7);
10209 mono_mb_emit_byte (mb, CEE_AND);
10210 mono_mb_emit_byte (mb, CEE_SHL);
10212 /*bitwise and the whole thing*/
10213 mono_mb_emit_byte (mb, CEE_AND);
10214 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10217 mono_mb_patch_branch (mb, b1);
10218 mono_mb_emit_ldloc (mb, array_slot_addr);
10219 mono_mb_emit_ldarg (mb, 2);
10220 mono_mb_emit_byte (mb, CEE_STIND_REF);
10221 mono_mb_emit_byte (mb, CEE_RET);
10223 /* do_exception: */
10224 mono_mb_patch_branch (mb, b2);
10225 mono_mb_patch_branch (mb, b3);
10226 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10230 mono_mb_emit_ldarg (mb, 0);
10231 mono_mb_emit_ldarg (mb, 1);
10232 mono_mb_emit_ldarg (mb, 2);
10233 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10234 mono_mb_emit_byte (mb, CEE_RET);
10237 #endif /* DISABLE_JIT */
10238 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10239 info->d.virtual_stelemref.kind = kind;
10240 res = mono_mb_create (mb, signature, 4, info);
10241 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10243 mono_marshal_lock ();
10244 if (!cached_methods [kind]) {
10245 cached_methods [kind] = res;
10246 mono_marshal_unlock ();
10248 mono_marshal_unlock ();
10249 mono_free_method (res);
10253 return cached_methods [kind];
10257 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10261 g_assert (array_class->rank == 1);
10262 kind = get_virtual_stelemref_kind (array_class->element_class);
10264 return get_virtual_stelemref_wrapper (kind);
10268 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10273 *nwrappers = STELEMREF_KIND_COUNT;
10274 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10275 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10276 res [i] = get_virtual_stelemref_wrapper (i);
10281 * mono_marshal_get_stelemref:
10284 mono_marshal_get_stelemref (void)
10286 static MonoMethod* ret = NULL;
10287 MonoMethodSignature *sig;
10288 MonoMethodBuilder *mb;
10291 guint32 b1, b2, b3, b4;
10293 int aklass, vklass;
10294 int array_slot_addr;
10299 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10302 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10304 /* void stelemref (void* array, int idx, void* value) */
10305 sig->ret = &mono_defaults.void_class->byval_arg;
10306 sig->params [0] = &mono_defaults.object_class->byval_arg;
10307 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10308 sig->params [2] = &mono_defaults.object_class->byval_arg;
10310 #ifndef DISABLE_JIT
10311 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10312 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10313 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10317 <ldelema (bound check)>
10321 aklass = array->vtable->klass->element_class;
10322 vklass = value->vtable->klass;
10324 if (vklass->idepth < aklass->idepth)
10327 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10331 *array_slot_addr = value;
10335 if (mono_object_isinst (value, aklass))
10338 throw new ArrayTypeMismatchException ();
10341 /* ldelema (implicit bound check) */
10342 mono_mb_emit_ldarg (mb, 0);
10343 mono_mb_emit_ldarg (mb, 1);
10344 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10345 mono_mb_emit_stloc (mb, array_slot_addr);
10347 /* if (!value) goto do_store */
10348 mono_mb_emit_ldarg (mb, 2);
10349 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10351 /* aklass = array->vtable->klass->element_class */
10352 mono_mb_emit_ldarg (mb, 0);
10353 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10354 mono_mb_emit_byte (mb, CEE_LDIND_I);
10355 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10356 mono_mb_emit_byte (mb, CEE_LDIND_I);
10357 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10358 mono_mb_emit_byte (mb, CEE_LDIND_I);
10359 mono_mb_emit_stloc (mb, aklass);
10361 /* vklass = value->vtable->klass */
10362 mono_mb_emit_ldarg (mb, 2);
10363 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10364 mono_mb_emit_byte (mb, CEE_LDIND_I);
10365 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10366 mono_mb_emit_byte (mb, CEE_LDIND_I);
10367 mono_mb_emit_stloc (mb, vklass);
10369 /* if (vklass->idepth < aklass->idepth) goto failue */
10370 mono_mb_emit_ldloc (mb, vklass);
10371 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10372 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10374 mono_mb_emit_ldloc (mb, aklass);
10375 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10376 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10378 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10380 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10381 mono_mb_emit_ldloc (mb, vklass);
10382 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10383 mono_mb_emit_byte (mb, CEE_LDIND_I);
10385 mono_mb_emit_ldloc (mb, aklass);
10386 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10387 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10388 mono_mb_emit_icon (mb, 1);
10389 mono_mb_emit_byte (mb, CEE_SUB);
10390 mono_mb_emit_icon (mb, sizeof (void*));
10391 mono_mb_emit_byte (mb, CEE_MUL);
10392 mono_mb_emit_byte (mb, CEE_ADD);
10393 mono_mb_emit_byte (mb, CEE_LDIND_I);
10395 mono_mb_emit_ldloc (mb, aklass);
10397 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10399 copy_pos = mono_mb_get_label (mb);
10401 mono_mb_patch_branch (mb, b1);
10402 mono_mb_emit_ldloc (mb, array_slot_addr);
10403 mono_mb_emit_ldarg (mb, 2);
10404 mono_mb_emit_byte (mb, CEE_STIND_REF);
10406 mono_mb_emit_byte (mb, CEE_RET);
10409 mono_mb_patch_branch (mb, b2);
10410 mono_mb_patch_branch (mb, b3);
10412 mono_mb_emit_ldarg (mb, 2);
10413 mono_mb_emit_ldloc (mb, aklass);
10414 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10416 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10417 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10418 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10420 mono_mb_emit_byte (mb, CEE_RET);
10422 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10423 ret = mono_mb_create (mb, sig, 4, info);
10430 * mono_marshal_get_gsharedvt_in_wrapper:
10432 * This wrapper handles calls from normal code to gsharedvt code.
10435 mono_marshal_get_gsharedvt_in_wrapper (void)
10437 static MonoMethod* ret = NULL;
10438 MonoMethodSignature *sig;
10439 MonoMethodBuilder *mb;
10445 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10447 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10448 sig->ret = &mono_defaults.void_class->byval_arg;
10450 #ifndef DISABLE_JIT
10452 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10454 mono_mb_emit_byte (mb, CEE_RET);
10456 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10457 ret = mono_mb_create (mb, sig, 4, info);
10464 * mono_marshal_get_gsharedvt_out_wrapper:
10466 * This wrapper handles calls from gsharedvt code to normal code.
10469 mono_marshal_get_gsharedvt_out_wrapper (void)
10471 static MonoMethod* ret = NULL;
10472 MonoMethodSignature *sig;
10473 MonoMethodBuilder *mb;
10479 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10481 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10482 sig->ret = &mono_defaults.void_class->byval_arg;
10484 #ifndef DISABLE_JIT
10486 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10488 mono_mb_emit_byte (mb, CEE_RET);
10490 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10491 ret = mono_mb_create (mb, sig, 4, info);
10500 MonoMethod *method;
10503 /* LOCKING: vars accessed under the marshal lock */
10504 static ArrayElemAddr *elem_addr_cache = NULL;
10505 static int elem_addr_cache_size = 0;
10506 static int elem_addr_cache_next = 0;
10509 * mono_marshal_get_array_address:
10510 * \param rank rank of the array type
10511 * \param elem_size size in bytes of an element of an array.
10513 * Returns a MonoMethod that implements the code to get the address
10514 * of an element in a multi-dimenasional array of \p rank dimensions.
10515 * The returned method takes an array as the first argument and then
10516 * \p rank indexes for the \p rank dimensions.
10517 * If ELEM_SIZE is 0, read the array size from the array object.
10520 mono_marshal_get_array_address (int rank, int elem_size)
10523 MonoMethodBuilder *mb;
10524 MonoMethodSignature *sig;
10527 int i, bounds, ind, realidx;
10528 int branch_pos, *branch_positions;
10532 mono_marshal_lock ();
10533 for (i = 0; i < elem_addr_cache_next; ++i) {
10534 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10535 ret = elem_addr_cache [i].method;
10539 mono_marshal_unlock ();
10543 branch_positions = g_new0 (int, rank);
10545 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10547 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10548 sig->ret = &mono_defaults.int_class->byval_arg;
10549 sig->params [0] = &mono_defaults.object_class->byval_arg;
10550 for (i = 0; i < rank; ++i) {
10551 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10554 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10555 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10558 #ifndef DISABLE_JIT
10559 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10560 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10561 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10563 /* bounds = array->bounds; */
10564 mono_mb_emit_ldarg (mb, 0);
10565 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10566 mono_mb_emit_byte (mb, CEE_LDIND_I);
10567 mono_mb_emit_stloc (mb, bounds);
10569 /* ind is the overall element index, realidx is the partial index in a single dimension */
10570 /* ind = idx0 - bounds [0].lower_bound */
10571 mono_mb_emit_ldarg (mb, 1);
10572 mono_mb_emit_ldloc (mb, bounds);
10573 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10574 mono_mb_emit_byte (mb, CEE_ADD);
10575 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10576 mono_mb_emit_byte (mb, CEE_SUB);
10577 mono_mb_emit_stloc (mb, ind);
10578 /* if (ind >= bounds [0].length) goto exeception; */
10579 mono_mb_emit_ldloc (mb, ind);
10580 mono_mb_emit_ldloc (mb, bounds);
10581 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10582 mono_mb_emit_byte (mb, CEE_ADD);
10583 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10584 /* note that we use unsigned comparison */
10585 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10587 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10588 * We could also decide to ignore the passed elem_size and get it
10589 * from the array object, to reduce the number of methods we generate:
10590 * the additional cost is 3 memory loads and a non-immediate mul.
10592 for (i = 1; i < rank; ++i) {
10593 /* realidx = idxi - bounds [i].lower_bound */
10594 mono_mb_emit_ldarg (mb, 1 + i);
10595 mono_mb_emit_ldloc (mb, bounds);
10596 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10597 mono_mb_emit_byte (mb, CEE_ADD);
10598 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10599 mono_mb_emit_byte (mb, CEE_SUB);
10600 mono_mb_emit_stloc (mb, realidx);
10601 /* if (realidx >= bounds [i].length) goto exeception; */
10602 mono_mb_emit_ldloc (mb, realidx);
10603 mono_mb_emit_ldloc (mb, bounds);
10604 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10605 mono_mb_emit_byte (mb, CEE_ADD);
10606 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10607 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10608 /* ind = ind * bounds [i].length + realidx */
10609 mono_mb_emit_ldloc (mb, ind);
10610 mono_mb_emit_ldloc (mb, bounds);
10611 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10612 mono_mb_emit_byte (mb, CEE_ADD);
10613 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10614 mono_mb_emit_byte (mb, CEE_MUL);
10615 mono_mb_emit_ldloc (mb, realidx);
10616 mono_mb_emit_byte (mb, CEE_ADD);
10617 mono_mb_emit_stloc (mb, ind);
10620 /* return array->vector + ind * element_size */
10621 mono_mb_emit_ldarg (mb, 0);
10622 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10623 mono_mb_emit_ldloc (mb, ind);
10625 mono_mb_emit_icon (mb, elem_size);
10627 /* Load arr->vtable->klass->sizes.element_class */
10628 mono_mb_emit_ldarg (mb, 0);
10629 mono_mb_emit_byte (mb, CEE_CONV_I);
10630 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10631 mono_mb_emit_byte (mb, CEE_ADD);
10632 mono_mb_emit_byte (mb, CEE_LDIND_I);
10633 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10634 mono_mb_emit_byte (mb, CEE_ADD);
10635 mono_mb_emit_byte (mb, CEE_LDIND_I);
10636 /* sizes is an union, so this reads sizes.element_size */
10637 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10638 mono_mb_emit_byte (mb, CEE_ADD);
10639 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10641 mono_mb_emit_byte (mb, CEE_MUL);
10642 mono_mb_emit_byte (mb, CEE_ADD);
10643 mono_mb_emit_byte (mb, CEE_RET);
10645 /* patch the branches to get here and throw */
10646 for (i = 1; i < rank; ++i) {
10647 mono_mb_patch_branch (mb, branch_positions [i]);
10649 mono_mb_patch_branch (mb, branch_pos);
10650 /* throw exception */
10651 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10653 g_free (branch_positions);
10654 #endif /* DISABLE_JIT */
10656 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10657 info->d.element_addr.rank = rank;
10658 info->d.element_addr.elem_size = elem_size;
10659 ret = mono_mb_create (mb, sig, 4, info);
10662 /* cache the result */
10664 mono_marshal_lock ();
10665 for (i = 0; i < elem_addr_cache_next; ++i) {
10666 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10667 /* FIXME: free ret */
10668 ret = elem_addr_cache [i].method;
10674 if (elem_addr_cache_next >= elem_addr_cache_size) {
10675 int new_size = elem_addr_cache_size + 4;
10676 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10677 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10678 g_free (elem_addr_cache);
10679 elem_addr_cache = new_array;
10680 elem_addr_cache_size = new_size;
10682 elem_addr_cache [elem_addr_cache_next].rank = rank;
10683 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10684 elem_addr_cache [elem_addr_cache_next].method = ret;
10685 elem_addr_cache_next ++;
10687 mono_marshal_unlock ();
10692 * mono_marshal_get_array_accessor_wrapper:
10694 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10697 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10699 MonoMethodSignature *sig;
10700 MonoMethodBuilder *mb;
10704 MonoGenericContext *ctx = NULL;
10705 MonoMethod *orig_method = NULL;
10706 MonoGenericContainer *container = NULL;
10710 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10711 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10712 * FIXME: Use generic methods.
10719 g_assert_not_reached ();
10721 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10722 if ((res = mono_marshal_find_in_cache (cache, method)))
10726 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10729 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10731 #ifndef DISABLE_JIT
10732 /* Call the method */
10734 mono_mb_emit_ldarg (mb, 0);
10735 for (i = 0; i < sig->param_count; i++)
10736 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10740 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10741 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10743 mono_mb_emit_managed_call (mb, method, NULL);
10745 mono_mb_emit_byte (mb, CEE_RET);
10748 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10749 info->d.array_accessor.method = method;
10753 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10754 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10756 res = mono_mb_create_and_cache_full (cache, method,
10757 mb, sig, sig->param_count + 16,
10766 static inline void*
10767 mono_marshal_alloc_co_task_mem (size_t size)
10769 if ((gulong)size == 0)
10770 /* This returns a valid pointer for size 0 on MS.NET */
10773 return g_try_malloc ((gulong)size);
10778 * mono_marshal_alloc:
10781 mono_marshal_alloc (gsize size, MonoError *error)
10785 error_init (error);
10787 res = mono_marshal_alloc_co_task_mem (size);
10789 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10794 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10796 ves_icall_marshal_alloc (gsize size)
10799 void *ret = mono_marshal_alloc (size, &error);
10800 if (!mono_error_ok (&error)) {
10801 mono_error_set_pending_exception (&error);
10810 mono_marshal_free_co_task_mem (void *ptr)
10818 * mono_marshal_free:
10821 mono_marshal_free (gpointer ptr)
10823 mono_marshal_free_co_task_mem (ptr);
10827 * mono_marshal_free_array:
10830 mono_marshal_free_array (gpointer *ptr, int size)
10837 for (i = 0; i < size; i++)
10843 mono_marshal_string_to_utf16 (MonoString *s)
10845 return s ? mono_string_chars (s) : NULL;
10848 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10850 mono_marshal_string_to_utf16_copy (MonoString *s)
10856 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10857 if (!mono_error_ok (&error)) {
10858 mono_error_set_pending_exception (&error);
10861 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10862 res [mono_string_length (s)] = 0;
10868 * mono_marshal_set_last_error:
10870 * This function is invoked to set the last error value from a P/Invoke call
10871 * which has \c SetLastError set.
10874 mono_marshal_set_last_error (void)
10877 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10879 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10884 mono_marshal_set_last_error_windows (int error)
10887 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10892 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10893 gpointer dest, gint32 length)
10898 MONO_CHECK_ARG_NULL (src,);
10899 MONO_CHECK_ARG_NULL (dest,);
10901 if (src->obj.vtable->klass->rank != 1) {
10902 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10905 if (start_index < 0) {
10906 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10910 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10913 if (start_index + length > mono_array_length (src)) {
10914 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10918 element_size = mono_array_element_size (src->obj.vtable->klass);
10920 /* no references should be involved */
10921 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10923 memcpy (dest, source_addr, length * element_size);
10927 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10928 MonoArray *dest, gint32 length)
10933 MONO_CHECK_ARG_NULL (src,);
10934 MONO_CHECK_ARG_NULL (dest,);
10936 if (dest->obj.vtable->klass->rank != 1) {
10937 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10940 if (start_index < 0) {
10941 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10945 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10948 if (start_index + length > mono_array_length (dest)) {
10949 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10952 element_size = mono_array_element_size (dest->obj.vtable->klass);
10954 /* no references should be involved */
10955 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10957 memcpy (dest_addr, src, length * element_size);
10961 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr, MonoError *error)
10963 error_init (error);
10965 return MONO_HANDLE_CAST (MonoString, NULL_HANDLE);
10967 return mono_string_new_handle (mono_domain_get (), ptr, error);
10971 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10974 MonoString *result = NULL;
10975 error_init (&error);
10977 mono_error_set_argument_null (&error, "ptr", "");
10979 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10980 mono_error_set_pending_exception (&error);
10985 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10988 MonoString *res = NULL;
10989 MonoDomain *domain = mono_domain_get ();
10999 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
11000 if (!mono_error_ok (&error)) {
11001 mono_error_set_pending_exception (&error);
11008 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
11011 MonoString *res = NULL;
11012 MonoDomain *domain = mono_domain_get ();
11014 error_init (&error);
11018 mono_error_set_argument_null (&error, "ptr", "");
11020 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
11023 if (!mono_error_ok (&error))
11024 mono_error_set_pending_exception (&error);
11029 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
11031 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
11035 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionTypeHandle rtype, MonoError *error)
11041 error_init (error);
11043 if (MONO_HANDLE_IS_NULL (rtype)) {
11044 mono_error_set_argument_null (error, "type", "");
11048 type = MONO_HANDLE_GETVAL (rtype, type);
11049 klass = mono_class_from_mono_type (type);
11050 if (!mono_class_init (klass)) {
11051 mono_error_set_for_class_failure (error, klass);
11055 layout = (mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK);
11057 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
11058 return sizeof (gpointer);
11059 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11060 mono_error_set_argument (error, "t", "Type %s cannot be marshaled as an unmanaged structure.", klass->name);
11064 return mono_class_native_size (klass, NULL);
11068 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
11071 MonoMethod *method;
11074 MONO_CHECK_ARG_NULL (obj,);
11075 MONO_CHECK_ARG_NULL (dst,);
11077 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
11081 pa [2] = &delete_old;
11083 mono_runtime_invoke_checked (method, NULL, pa, &error);
11084 if (!mono_error_ok (&error))
11085 mono_error_set_pending_exception (&error);
11089 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
11091 MonoMethod *method;
11094 error_init (error);
11096 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
11101 mono_runtime_invoke_checked (method, NULL, pa, error);
11105 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
11110 MONO_CHECK_ARG_NULL (src,);
11111 MONO_CHECK_ARG_NULL (dst,);
11113 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
11115 if (t->type == MONO_TYPE_VALUETYPE) {
11116 MonoException *exc;
11119 tmp = g_strdup_printf ("Destination is a boxed value type.");
11120 exc = mono_get_exception_argument ("dst", tmp);
11123 mono_set_pending_exception (exc);
11127 ptr_to_structure (src, dst, &error);
11128 if (!mono_error_ok (&error))
11129 mono_error_set_pending_exception (&error);
11133 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
11137 MonoDomain *domain = mono_domain_get ();
11142 MONO_CHECK_ARG_NULL (type, NULL);
11144 klass = mono_class_from_mono_type (type->type);
11145 if (!mono_class_init (klass)) {
11146 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11150 res = mono_object_new_checked (domain, klass, &error);
11151 if (!mono_error_ok (&error)) {
11152 mono_error_set_pending_exception (&error);
11156 ptr_to_structure (src, res, &error);
11157 if (!mono_error_ok (&error)) {
11158 mono_error_set_pending_exception (&error);
11166 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionTypeHandle ref_type, MonoStringHandle field_name, MonoError *error)
11168 error_init (error);
11169 if (MONO_HANDLE_IS_NULL (ref_type)) {
11170 mono_error_set_argument_null (error, "type", "");
11173 if (MONO_HANDLE_IS_NULL (field_name)) {
11174 mono_error_set_argument_null (error, "fieldName", "");
11178 char *fname = mono_string_handle_to_utf8 (field_name, error);
11179 return_val_if_nok (error, 0);
11181 MonoType *type = MONO_HANDLE_GETVAL (ref_type, type);
11182 MonoClass *klass = mono_class_from_mono_type (type);
11183 if (!mono_class_init (klass)) {
11184 mono_error_set_for_class_failure (error, klass);
11188 int match_index = -1;
11189 while (klass && match_index == -1) {
11190 MonoClassField* field;
11192 gpointer iter = NULL;
11193 while ((field = mono_class_get_fields (klass, &iter))) {
11194 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11196 if (!strcmp (fname, mono_field_get_name (field))) {
11203 if (match_index == -1)
11204 klass = klass->parent;
11209 if(match_index == -1) {
11210 /* Get back original class instance */
11211 klass = mono_class_from_mono_type (type);
11213 mono_error_set_argument (error, "fieldName", "Field passed in is not a marshaled member of the type %s", klass->name);
11217 MonoMarshalType *info = mono_marshal_load_type_info (klass);
11218 return info->fields [match_index].offset;
11223 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11226 char *ret = mono_string_to_utf8_checked (string, &error);
11227 mono_error_set_pending_exception (&error);
11232 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11234 if (string == NULL)
11237 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
11239 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11240 res [mono_string_length (string)] = 0;
11244 #endif /* !HOST_WIN32 */
11247 mono_struct_delete_old (MonoClass *klass, char *ptr)
11249 MonoMarshalType *info;
11252 info = mono_marshal_load_type_info (klass);
11254 for (i = 0; i < info->num_fields; i++) {
11255 MonoMarshalConv conv;
11256 MonoType *ftype = info->fields [i].field->type;
11259 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11262 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11263 klass->unicode, &conv);
11265 cpos = ptr + info->fields [i].offset;
11268 case MONO_MARSHAL_CONV_NONE:
11269 if (MONO_TYPE_ISSTRUCT (ftype)) {
11270 mono_struct_delete_old (ftype->data.klass, cpos);
11274 case MONO_MARSHAL_CONV_STR_LPWSTR:
11275 /* We assume this field points inside a MonoString */
11277 case MONO_MARSHAL_CONV_STR_LPTSTR:
11278 #ifdef TARGET_WIN32
11279 /* We assume this field points inside a MonoString
11283 case MONO_MARSHAL_CONV_STR_LPSTR:
11284 case MONO_MARSHAL_CONV_STR_BSTR:
11285 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11286 case MONO_MARSHAL_CONV_STR_TBSTR:
11287 case MONO_MARSHAL_CONV_STR_UTF8STR:
11288 mono_marshal_free (*(gpointer *)cpos);
11298 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11302 MONO_CHECK_ARG_NULL (src,);
11303 MONO_CHECK_ARG_NULL (type,);
11305 klass = mono_class_from_mono_type (type->type);
11306 if (!mono_class_init (klass)) {
11307 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11311 mono_struct_delete_old (klass, (char *)src);
11315 static inline void *
11316 mono_marshal_alloc_hglobal (size_t size)
11318 return g_try_malloc (size);
11323 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11326 size_t s = (size_t)size;
11329 /* This returns a valid pointer for size 0 on MS.NET */
11332 res = mono_marshal_alloc_hglobal (s);
11335 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11343 static inline gpointer
11344 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11346 return g_try_realloc (ptr, size);
11351 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11354 size_t s = (size_t)size;
11357 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11361 res = mono_marshal_realloc_hglobal (ptr, s);
11364 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11373 mono_marshal_free_hglobal (gpointer ptr)
11381 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11383 mono_marshal_free_hglobal (ptr);
11387 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11389 void *res = mono_marshal_alloc_co_task_mem (size);
11392 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11399 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11401 void *res = mono_marshal_alloc_co_task_mem (size);
11404 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11411 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11413 mono_marshal_free_co_task_mem (ptr);
11418 static inline gpointer
11419 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11421 return g_try_realloc (ptr, (gulong)size);
11426 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11428 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11431 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11438 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11440 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11444 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionTypeHandle type, MonoError *error)
11446 error_init (error);
11447 MonoClass *klass = mono_type_get_class (MONO_HANDLE_GETVAL (type, type));
11448 if (!mono_class_init (klass)) {
11449 mono_error_set_for_class_failure (error, klass);
11453 return mono_ftnptr_to_delegate_handle (klass, ftn, error);
11457 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11459 return mono_delegate_to_ftnptr (delegate);
11463 * mono_marshal_is_loading_type_info:
11465 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11469 mono_marshal_is_loading_type_info (MonoClass *klass)
11471 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11473 return g_slist_find (loads_list, klass) != NULL;
11477 * mono_marshal_load_type_info:
11479 * Initialize \c klass::marshal_info using information from metadata. This function can
11480 * recursively call itself, and the caller is responsible to avoid that by calling
11481 * \c mono_marshal_is_loading_type_info beforehand.
11483 * LOCKING: Acquires the loader lock.
11486 mono_marshal_load_type_info (MonoClass* klass)
11489 guint32 native_size = 0, min_align = 1, packing;
11490 MonoMarshalType *info;
11491 MonoClassField* field;
11494 GSList *loads_list;
11496 g_assert (klass != NULL);
11498 info = mono_class_get_marshal_info (klass);
11502 if (!klass->inited)
11503 mono_class_init (klass);
11505 info = mono_class_get_marshal_info (klass);
11510 * This function can recursively call itself, so we keep the list of classes which are
11511 * under initialization in a TLS list.
11513 g_assert (!mono_marshal_is_loading_type_info (klass));
11514 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11515 loads_list = g_slist_prepend (loads_list, klass);
11516 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11519 while ((field = mono_class_get_fields (klass, &iter))) {
11520 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11522 if (mono_field_is_deleted (field))
11527 layout = mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK;
11529 /* The mempool is protected by the loader lock */
11530 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11531 info->num_fields = count;
11533 /* Try to find a size for this type in metadata */
11534 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11536 if (klass->parent) {
11537 int parent_size = mono_class_native_size (klass->parent, NULL);
11539 /* Add parent size to real size */
11540 native_size += parent_size;
11541 info->native_size = parent_size;
11544 packing = klass->packing_size ? klass->packing_size : 8;
11547 while ((field = mono_class_get_fields (klass, &iter))) {
11551 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11554 if (mono_field_is_deleted (field))
11556 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11557 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11558 NULL, NULL, &info->fields [j].mspec);
11560 info->fields [j].field = field;
11562 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11563 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11564 /* This field is a hack inserted by MCS to empty structures */
11569 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11570 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11571 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11572 &align, TRUE, klass->unicode);
11573 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11574 min_align = MAX (align, min_align);
11575 info->fields [j].offset = info->native_size;
11576 info->fields [j].offset += align - 1;
11577 info->fields [j].offset &= ~(align - 1);
11578 info->native_size = info->fields [j].offset + size;
11580 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11581 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11582 &align, TRUE, klass->unicode);
11583 min_align = MAX (align, min_align);
11584 info->fields [j].offset = field->offset - sizeof (MonoObject);
11585 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11591 if (klass->byval_arg.type == MONO_TYPE_PTR)
11592 info->native_size = sizeof (gpointer);
11594 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11595 info->native_size = MAX (native_size, info->native_size);
11597 * If the provided Size is equal or larger than the calculated size, and there
11598 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11600 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11601 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11604 min_align = MIN (min_align, packing);
11608 if (info->native_size & (min_align - 1)) {
11609 info->native_size += min_align - 1;
11610 info->native_size &= ~(min_align - 1);
11613 info->min_align = min_align;
11615 /* Update the class's blittable info, if the layouts don't match */
11616 if (info->native_size != mono_class_value_size (klass, NULL))
11617 klass->blittable = FALSE;
11619 /* If this is an array type, ensure that we have element info */
11620 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11621 mono_marshal_load_type_info (klass->element_class);
11624 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11625 loads_list = g_slist_remove (loads_list, klass);
11626 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11628 mono_marshal_lock ();
11629 MonoMarshalType *info2 = mono_class_get_marshal_info (klass);
11631 /*We do double-checking locking on marshal_info */
11632 mono_memory_barrier ();
11633 mono_class_set_marshal_info (klass, info);
11634 ++class_marshal_info_count;
11637 mono_marshal_unlock ();
11643 * mono_class_native_size:
11644 * \param klass a class
11645 * \returns the native size of an object instance (when marshaled
11646 * to unmanaged code)
11649 mono_class_native_size (MonoClass *klass, guint32 *align)
11651 MonoMarshalType *info = mono_class_get_marshal_info (klass);
11653 if (mono_marshal_is_loading_type_info (klass)) {
11658 mono_marshal_load_type_info (klass);
11660 info = mono_class_get_marshal_info (klass);
11664 *align = info->min_align;
11666 return info->native_size;
11670 * mono_type_native_stack_size:
11671 * @t: the type to return the size it uses on the stack
11673 * Returns: the number of bytes required to hold an instance of this
11674 * type on the native stack
11677 mono_type_native_stack_size (MonoType *t, guint32 *align)
11681 g_assert (t != NULL);
11687 *align = sizeof (gpointer);
11688 return sizeof (gpointer);
11692 case MONO_TYPE_BOOLEAN:
11693 case MONO_TYPE_CHAR:
11704 case MONO_TYPE_STRING:
11705 case MONO_TYPE_OBJECT:
11706 case MONO_TYPE_CLASS:
11707 case MONO_TYPE_SZARRAY:
11708 case MONO_TYPE_PTR:
11709 case MONO_TYPE_FNPTR:
11710 case MONO_TYPE_ARRAY:
11711 *align = sizeof (gpointer);
11712 return sizeof (gpointer);
11717 *align = MONO_ABI_ALIGNOF (double);
11721 *align = MONO_ABI_ALIGNOF (gint64);
11723 case MONO_TYPE_GENERICINST:
11724 if (!mono_type_generic_inst_is_valuetype (t)) {
11725 *align = sizeof (gpointer);
11726 return sizeof (gpointer);
11729 case MONO_TYPE_TYPEDBYREF:
11730 case MONO_TYPE_VALUETYPE: {
11732 MonoClass *klass = mono_class_from_mono_type (t);
11734 if (klass->enumtype)
11735 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11737 size = mono_class_native_size (klass, align);
11738 *align = *align + 3;
11748 g_error ("type 0x%02x unknown", t->type);
11754 * mono_marshal_type_size:
11757 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11758 gboolean as_field, gboolean unicode)
11760 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11763 switch (native_type) {
11764 case MONO_NATIVE_BOOLEAN:
11767 case MONO_NATIVE_I1:
11768 case MONO_NATIVE_U1:
11771 case MONO_NATIVE_I2:
11772 case MONO_NATIVE_U2:
11773 case MONO_NATIVE_VARIANTBOOL:
11776 case MONO_NATIVE_I4:
11777 case MONO_NATIVE_U4:
11778 case MONO_NATIVE_ERROR:
11781 case MONO_NATIVE_I8:
11782 case MONO_NATIVE_U8:
11783 *align = MONO_ABI_ALIGNOF (gint64);
11785 case MONO_NATIVE_R4:
11788 case MONO_NATIVE_R8:
11789 *align = MONO_ABI_ALIGNOF (double);
11791 case MONO_NATIVE_INT:
11792 case MONO_NATIVE_UINT:
11793 case MONO_NATIVE_LPSTR:
11794 case MONO_NATIVE_LPWSTR:
11795 case MONO_NATIVE_LPTSTR:
11796 case MONO_NATIVE_BSTR:
11797 case MONO_NATIVE_ANSIBSTR:
11798 case MONO_NATIVE_TBSTR:
11799 case MONO_NATIVE_UTF8STR:
11800 case MONO_NATIVE_LPARRAY:
11801 case MONO_NATIVE_SAFEARRAY:
11802 case MONO_NATIVE_IUNKNOWN:
11803 case MONO_NATIVE_IDISPATCH:
11804 case MONO_NATIVE_INTERFACE:
11805 case MONO_NATIVE_ASANY:
11806 case MONO_NATIVE_FUNC:
11807 case MONO_NATIVE_LPSTRUCT:
11808 *align = MONO_ABI_ALIGNOF (gpointer);
11809 return sizeof (gpointer);
11810 case MONO_NATIVE_STRUCT:
11811 klass = mono_class_from_mono_type (type);
11812 if (klass == mono_defaults.object_class &&
11813 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11817 return mono_class_native_size (klass, align);
11818 case MONO_NATIVE_BYVALTSTR: {
11819 int esize = unicode ? 2: 1;
11822 return mspec->data.array_data.num_elem * esize;
11824 case MONO_NATIVE_BYVALARRAY: {
11825 // FIXME: Have to consider ArraySubType
11827 klass = mono_class_from_mono_type (type);
11828 if (klass->element_class == mono_defaults.char_class) {
11829 esize = unicode ? 2 : 1;
11832 esize = mono_class_native_size (klass->element_class, align);
11835 return mspec->data.array_data.num_elem * esize;
11837 case MONO_NATIVE_CUSTOM:
11838 *align = sizeof (gpointer);
11839 return sizeof (gpointer);
11841 case MONO_NATIVE_CURRENCY:
11842 case MONO_NATIVE_VBBYREFSTR:
11844 g_error ("native type %02x not implemented", native_type);
11847 g_assert_not_reached ();
11852 * mono_marshal_asany:
11853 * This is a JIT icall, it sets the pending exception and returns NULL on error.
11856 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11865 t = &o->vtable->klass->byval_arg;
11869 case MONO_TYPE_PTR:
11872 case MONO_TYPE_BOOLEAN:
11875 case MONO_TYPE_CHAR:
11880 return mono_object_unbox (o);
11882 case MONO_TYPE_STRING:
11883 switch (string_encoding) {
11884 case MONO_NATIVE_LPWSTR:
11885 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11886 case MONO_NATIVE_LPSTR:
11887 case MONO_NATIVE_UTF8STR:
11888 // Same code path, because in Mono, we treated strings as Utf8
11889 return mono_string_to_utf8str ((MonoString*)o);
11891 g_warning ("marshaling conversion %d not implemented", string_encoding);
11892 g_assert_not_reached ();
11895 case MONO_TYPE_CLASS:
11896 case MONO_TYPE_VALUETYPE: {
11897 MonoMethod *method;
11900 MonoBoolean delete_old = FALSE;
11902 klass = t->data.klass;
11904 if (mono_class_is_auto_layout (klass))
11907 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11908 return mono_object_unbox (o);
11910 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11911 if (!mono_error_ok (&error)) {
11912 mono_error_set_pending_exception (&error);
11916 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11917 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11921 pa [2] = &delete_old;
11923 mono_runtime_invoke_checked (method, NULL, pa, &error);
11924 if (!mono_error_ok (&error)) {
11925 mono_error_set_pending_exception (&error);
11935 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11940 * mono_marshal_free_asany:
11941 * This is a JIT icall, it sets the pending exception
11944 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11953 t = &o->vtable->klass->byval_arg;
11955 case MONO_TYPE_STRING:
11956 switch (string_encoding) {
11957 case MONO_NATIVE_LPWSTR:
11958 case MONO_NATIVE_LPSTR:
11959 case MONO_NATIVE_UTF8STR:
11960 mono_marshal_free (ptr);
11963 g_warning ("marshaling conversion %d not implemented", string_encoding);
11964 g_assert_not_reached ();
11967 case MONO_TYPE_CLASS:
11968 case MONO_TYPE_VALUETYPE: {
11969 klass = t->data.klass;
11971 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11974 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11975 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11981 mono_runtime_invoke_checked (method, NULL, pa, &error);
11982 if (!mono_error_ok (&error)) {
11983 mono_error_set_pending_exception (&error);
11988 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11989 mono_struct_delete_old (klass, (char *)ptr);
11992 mono_marshal_free (ptr);
12001 * mono_marshal_get_generic_array_helper:
12003 * Return a wrapper which is used to implement the implicit interfaces on arrays.
12004 * The wrapper routes calls to METHOD, which is one of the InternalArray_ methods in Array.
12007 mono_marshal_get_generic_array_helper (MonoClass *klass, gchar *name, MonoMethod *method)
12009 MonoMethodSignature *sig, *csig;
12010 MonoMethodBuilder *mb;
12015 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
12016 mb->method->slot = -1;
12018 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
12019 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
12021 sig = mono_method_signature (method);
12022 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
12023 csig->generic_param_count = 0;
12025 #ifndef DISABLE_JIT
12026 mono_mb_emit_ldarg (mb, 0);
12027 for (i = 0; i < csig->param_count; i++)
12028 mono_mb_emit_ldarg (mb, i + 1);
12029 mono_mb_emit_managed_call (mb, method, NULL);
12030 mono_mb_emit_byte (mb, CEE_RET);
12032 /* We can corlib internal methods */
12033 mb->skip_visibility = TRUE;
12035 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
12036 info->d.generic_array_helper.method = method;
12037 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
12045 * The mono_win32_compat_* functions are implementations of inline
12046 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
12047 * although not exported by kernel32.
12049 * We map the appropiate kernel32 entries to these functions using
12050 * dllmaps declared in the global etc/mono/config.
12054 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
12056 if (!dest || !source)
12059 memcpy (dest, source, length);
12063 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
12065 memset (dest, fill, length);
12069 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
12071 if (!dest || !source)
12074 memmove (dest, source, length);
12078 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
12080 memset (dest, 0, length);
12084 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12089 for (i = 0; i < len; ++i)
12093 g_assert (i < len);
12096 while (byte && !(byte & 1))
12098 g_assert (byte == 1);
12101 *bitmask = buf [i];
12105 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12107 MonoMethodBuilder *mb;
12108 MonoMethodSignature *sig, *csig;
12109 MonoExceptionClause *clause;
12114 int i, param_count, sig_size, pos_leave;
12118 // FIXME: we need to store the exception into a MonoHandle
12119 g_assert (!mono_threads_is_coop_enabled ());
12121 klass = method->klass;
12122 image = method->klass->image;
12124 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12126 if ((res = mono_marshal_find_in_cache (cache, method)))
12129 sig = mono_method_signature (method);
12130 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12132 /* add "this" and exception param */
12133 param_count = sig->param_count + sig->hasthis + 1;
12135 /* dup & extend signature */
12136 csig = mono_metadata_signature_alloc (image, param_count);
12137 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
12138 memcpy (csig, sig, sig_size);
12139 csig->param_count = param_count;
12142 csig->call_convention = MONO_CALL_DEFAULT;
12144 if (sig->hasthis) {
12146 csig->params [0] = &klass->byval_arg;
12147 /* move params up by one */
12148 for (i = 0; i < sig->param_count; i++)
12149 csig->params [i + 1] = sig->params [i];
12152 /* setup exception param as byref+[out] */
12153 csig->params [param_count - 1] = mono_metadata_type_dup (image,
12154 &mono_defaults.exception_class->byval_arg);
12155 csig->params [param_count - 1]->byref = 1;
12156 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12158 /* convert struct return to object */
12159 if (MONO_TYPE_ISSTRUCT (sig->ret))
12160 csig->ret = &mono_defaults.object_class->byval_arg;
12162 #ifndef DISABLE_JIT
12163 /* local 0 (temp for exception object) */
12164 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12166 /* local 1 (temp for result) */
12167 if (!MONO_TYPE_IS_VOID (sig->ret))
12168 mono_mb_add_local (mb, sig->ret);
12170 /* clear exception arg */
12171 mono_mb_emit_ldarg (mb, param_count - 1);
12172 mono_mb_emit_byte (mb, CEE_LDNULL);
12173 mono_mb_emit_byte (mb, CEE_STIND_REF);
12176 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12177 clause->try_offset = mono_mb_get_label (mb);
12179 /* push method's args */
12180 for (i = 0; i < param_count - 1; i++) {
12184 mono_mb_emit_ldarg (mb, i);
12186 /* get the byval type of the param */
12187 klass = mono_class_from_mono_type (csig->params [i]);
12188 type = &klass->byval_arg;
12190 /* unbox struct args */
12191 if (MONO_TYPE_ISSTRUCT (type)) {
12192 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12194 /* byref args & and the "this" arg must remain a ptr.
12195 Otherwise make a copy of the value type */
12196 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12197 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12199 csig->params [i] = &mono_defaults.object_class->byval_arg;
12204 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12205 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12207 mono_mb_emit_op (mb, CEE_CALL, method);
12209 /* save result at local 1 */
12210 if (!MONO_TYPE_IS_VOID (sig->ret))
12211 mono_mb_emit_stloc (mb, 1);
12213 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12216 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12217 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12218 clause->data.catch_class = mono_defaults.object_class;
12220 clause->handler_offset = mono_mb_get_label (mb);
12222 /* store exception at local 0 */
12223 mono_mb_emit_stloc (mb, 0);
12224 mono_mb_emit_ldarg (mb, param_count - 1);
12225 mono_mb_emit_ldloc (mb, 0);
12226 mono_mb_emit_byte (mb, CEE_STIND_REF);
12227 mono_mb_emit_branch (mb, CEE_LEAVE);
12229 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12231 mono_mb_set_clauses (mb, 1, clause);
12233 mono_mb_patch_branch (mb, pos_leave);
12236 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12237 mono_mb_emit_ldloc (mb, 1);
12239 /* box the return value */
12240 if (MONO_TYPE_ISSTRUCT (sig->ret))
12241 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12244 mono_mb_emit_byte (mb, CEE_RET);
12247 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12254 * mono_marshal_free_dynamic_wrappers:
12256 * Free wrappers of the dynamic method METHOD.
12259 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12261 MonoImage *image = method->klass->image;
12263 g_assert (method_is_dynamic (method));
12265 /* This could be called during shutdown */
12266 if (marshal_mutex_initialized)
12267 mono_marshal_lock ();
12269 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12270 * they could be shared with other methods ?
12272 if (image->wrapper_caches.runtime_invoke_direct_cache)
12273 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
12274 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12275 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12276 // FIXME: Need to clear the caches in other images as well
12277 if (image->delegate_bound_static_invoke_cache)
12278 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12280 if (marshal_mutex_initialized)
12281 mono_marshal_unlock ();
12285 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12287 g_assert (ftnptr_eh_callback);
12288 ftnptr_eh_callback (gchandle);
12292 ftnptr_eh_callback_default (guint32 gchandle)
12294 MonoException *exc;
12295 gpointer stackdata;
12297 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12299 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12301 mono_gchandle_free (gchandle);
12303 mono_raise_exception (exc);
12307 * mono_install_ftnptr_eh_callback:
12309 * Install a callback that should be called when there is a managed exception
12310 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12311 * managed exception to a native exception, to properly unwind the native
12312 * stack; this native exception will then be converted back to a managed
12313 * exception in their managed-to-native wrapper.
12316 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12318 ftnptr_eh_callback = callback;
12321 static MonoThreadInfo*
12322 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12324 MonoThreadInfo *info = mono_thread_info_current ();
12326 mono_stack_mark_init (info, stackmark);
12327 error_init (error);
12332 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12334 mono_stack_mark_pop (info, stackmark);
12335 if (G_UNLIKELY (!is_ok (error)))
12336 mono_error_set_pending_exception (error);
12339 static MonoObjectHandle
12340 mono_icall_handle_new_full (gpointer rawobj, MonoBoolean interior)
12342 #ifdef MONO_HANDLE_TRACK_OWNER
12343 return mono_handle_new_full (rawobj, interior, "<marshal args>");
12345 return mono_handle_new_full (rawobj, interior);