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 (MonoDelegateHandle 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_delegate_handle_to_ftnptr (MonoDelegateHandle delegate, MonoError *error);
186 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
189 mono_ftnptr_to_delegate_handle (MonoClass *klass, gpointer ftn, MonoError *error);
192 mono_array_to_savearray (MonoArray *array);
195 mono_array_to_lparray (MonoArray *array);
198 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
201 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
204 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
207 mono_array_to_savearray (MonoArray *array);
210 mono_array_to_lparray (MonoArray *array);
213 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
216 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
218 static MonoThreadInfo*
219 mono_icall_start (HandleStackMark *stackmark, MonoError *error);
222 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error);
224 static MonoObjectHandle
225 mono_icall_handle_new (gpointer rawobj);
227 static MonoObjectHandle
228 mono_icall_handle_new_interior (gpointer rawobj);
230 /* Lazy class loading functions */
231 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, "System.Text", "StringBuilder");
232 static GENERATE_GET_CLASS_WITH_CACHE (date_time, "System", "DateTime");
233 static GENERATE_GET_CLASS_WITH_CACHE (fixed_buffer_attribute, "System.Runtime.CompilerServices", "FixedBufferAttribute");
234 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
235 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, "System.Runtime.InteropServices", "ICustomMarshaler");
237 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
238 static MonoMethod *sh_dangerous_add_ref;
239 static MonoMethod *sh_dangerous_release;
244 sh_dangerous_add_ref = mono_class_get_method_from_name (
245 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
246 sh_dangerous_release = mono_class_get_method_from_name (
247 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
251 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
253 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
255 mono_register_jit_icall (func, name, sig, no_wrapper);
259 register_icall_no_wrapper (gpointer func, const char *name, const char *sigstr)
261 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
263 mono_register_jit_icall (func, name, sig, TRUE);
267 mono_signature_no_pinvoke (MonoMethod *method)
269 MonoMethodSignature *sig = mono_method_signature (method);
271 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
272 sig->pinvoke = FALSE;
279 mono_marshal_init_tls (void)
281 mono_native_tls_alloc (&last_error_tls_id, NULL);
282 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
286 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
291 /* This is called from stelemref so it is expected to succeed */
293 if (mono_class_is_interface (klass)) {
294 MonoVTable *vt = obj->vtable;
297 mono_class_init (klass);
299 if (MONO_VTABLE_IMPLEMENTS_INTERFACE (vt, klass->interface_id))
304 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
305 mono_error_set_pending_exception (&error);
310 ves_icall_mono_string_from_utf16 (gunichar2 *data)
313 MonoString *result = mono_string_from_utf16_checked (data, &error);
314 mono_error_set_pending_exception (&error);
319 ves_icall_mono_string_to_utf8 (MonoString *str)
322 char *result = mono_string_to_utf8_checked (str, &error);
323 mono_error_set_pending_exception (&error);
328 ves_icall_string_new_wrapper (const char *text)
332 MonoString *res = mono_string_new_checked (mono_domain_get (), text, &error);
333 mono_error_set_pending_exception (&error);
341 mono_marshal_init (void)
343 static gboolean module_initialized = FALSE;
345 if (!module_initialized) {
346 module_initialized = TRUE;
347 mono_os_mutex_init_recursive (&marshal_mutex);
348 marshal_mutex_initialized = TRUE;
350 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
351 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
352 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
353 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
354 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
355 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
356 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
357 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
358 register_icall (ves_icall_string_new_wrapper, "ves_icall_string_new_wrapper", "obj ptr", FALSE);
359 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
360 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
361 register_icall (mono_string_to_utf8str, "mono_string_to_utf8str", "ptr obj", FALSE);
362 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
363 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
364 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
365 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
366 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
367 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
368 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
369 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
370 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
371 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
372 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
373 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
374 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
375 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
376 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr ptr", FALSE);
377 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
378 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
379 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
380 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
381 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
382 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
383 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
384 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
385 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
386 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
387 register_icall (g_free, "g_free", "void ptr", FALSE);
388 register_icall_no_wrapper (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr");
389 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
390 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
391 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
392 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
393 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
394 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
395 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
396 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
397 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
398 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
399 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
400 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
401 register_icall (mono_icall_start, "mono_icall_start", "ptr ptr ptr", TRUE);
402 register_icall (mono_icall_end, "mono_icall_end", "void ptr ptr ptr", TRUE);
403 register_icall (mono_icall_handle_new, "mono_icall_handle_new", "ptr ptr", TRUE);
404 register_icall (mono_icall_handle_new_interior, "mono_icall_handle_new_interior", "ptr ptr", TRUE);
406 mono_cominterop_init ();
407 mono_remoting_init ();
409 mono_counters_register ("MonoClass::class_marshal_info_count count",
410 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_marshal_info_count);
416 mono_marshal_cleanup (void)
418 mono_cominterop_cleanup ();
420 mono_native_tls_free (load_type_info_tls_id);
421 mono_native_tls_free (last_error_tls_id);
422 mono_os_mutex_destroy (&marshal_mutex);
423 marshal_mutex_initialized = FALSE;
427 mono_marshal_lock_internal (void)
429 mono_marshal_lock ();
433 mono_marshal_unlock_internal (void)
435 mono_marshal_unlock ();
438 /* This is a JIT icall, it sets the pending exception and return NULL on error */
440 mono_delegate_to_ftnptr (MonoDelegate *delegate_raw)
442 HANDLE_FUNCTION_ENTER ();
444 MONO_HANDLE_DCL (MonoDelegate, delegate);
445 gpointer result = mono_delegate_handle_to_ftnptr (delegate, &error);
446 mono_error_set_pending_exception (&error);
447 HANDLE_FUNCTION_RETURN_VAL (result);
451 mono_delegate_handle_to_ftnptr (MonoDelegateHandle delegate, MonoError *error)
453 HANDLE_FUNCTION_ENTER ();
454 gpointer result = NULL;
456 MonoMethod *method, *wrapper;
458 uint32_t target_handle = 0;
460 if (MONO_HANDLE_IS_NULL (delegate))
463 if (MONO_HANDLE_GETVAL (delegate, delegate_trampoline)) {
464 result = MONO_HANDLE_GETVAL (delegate, delegate_trampoline);
468 klass = mono_handle_class (delegate);
469 g_assert (klass->delegate);
471 method = MONO_HANDLE_GETVAL (delegate, method);
472 if (MONO_HANDLE_GETVAL (delegate, method_is_virtual)) {
473 MonoObjectHandle delegate_target = MONO_HANDLE_NEW_GET (MonoObject, delegate, target);
474 method = mono_object_handle_get_virtual_method (delegate_target, method, error);
479 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
480 const char *exc_class, *exc_arg;
483 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
485 g_assert (exc_class);
486 mono_error_set_generic_error (error, "System", exc_class, "%s", exc_arg);
493 MonoObjectHandle delegate_target = MONO_HANDLE_NEW_GET (MonoObject, delegate, target);
494 if (!MONO_HANDLE_IS_NULL (delegate_target)) {
495 /* Produce a location which can be embedded in JITted code */
496 target_handle = mono_gchandle_new_weakref (MONO_HANDLE_RAW (delegate_target), FALSE); /* FIXME: a version of mono_gchandle_new_weakref that takes a coop handle */
499 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle, error);
503 MONO_HANDLE_SETVAL (delegate, delegate_trampoline, gpointer, mono_compile_method_checked (wrapper, error));
507 // Add the delegate to the delegate hash table
508 delegate_hash_table_add (delegate);
510 /* when the object is collected, collect the dynamic method, too */
511 mono_object_register_finalizer ((MonoObject*) MONO_HANDLE_RAW (delegate));
513 result = MONO_HANDLE_GETVAL (delegate, delegate_trampoline);
516 if (!is_ok (error) && target_handle != 0)
517 mono_gchandle_free (target_handle);
518 HANDLE_FUNCTION_RETURN_VAL (result);
522 * this hash table maps from a delegate trampoline object to a weak reference
523 * of the delegate. As an optimizations with a non-moving GC we store the
524 * object pointer itself, otherwise we use a GC handle.
526 static GHashTable *delegate_hash_table;
529 delegate_hash_table_new (void) {
530 return g_hash_table_new (NULL, NULL);
534 delegate_hash_table_remove (MonoDelegate *d)
536 guint32 gchandle = 0;
538 mono_marshal_lock ();
539 if (delegate_hash_table == NULL)
540 delegate_hash_table = delegate_hash_table_new ();
541 if (mono_gc_is_moving ())
542 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
543 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
544 mono_marshal_unlock ();
545 if (gchandle && mono_gc_is_moving ())
546 mono_gchandle_free (gchandle);
550 delegate_hash_table_add (MonoDelegateHandle d)
553 guint32 old_gchandle;
555 mono_marshal_lock ();
556 if (delegate_hash_table == NULL)
557 delegate_hash_table = delegate_hash_table_new ();
558 gpointer delegate_trampoline = MONO_HANDLE_GETVAL (d, delegate_trampoline);
559 if (mono_gc_is_moving ()) {
560 gchandle = mono_gchandle_new_weakref ((MonoObject*) MONO_HANDLE_RAW (d), FALSE);
561 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, delegate_trampoline));
562 g_hash_table_insert (delegate_hash_table, delegate_trampoline, GUINT_TO_POINTER (gchandle));
564 mono_gchandle_free (old_gchandle);
566 g_hash_table_insert (delegate_hash_table, delegate_trampoline, MONO_HANDLE_RAW (d));
568 mono_marshal_unlock ();
572 * mono_marshal_use_aot_wrappers:
574 * Instructs this module to use AOT compatible wrappers.
577 mono_marshal_use_aot_wrappers (gboolean use)
579 use_aot_wrappers = use;
583 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
586 MonoCustomAttrInfo *cinfo;
587 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
589 /* The attribute is only available in Net 2.0 */
590 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
592 * The pinvoke attributes are stored in a real custom attribute so we have to
595 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
596 if (!mono_error_ok (&error)) {
597 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
598 mono_error_cleanup (&error);
600 if (cinfo && !mono_runtime_get_no_exec ()) {
601 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
603 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
605 if (!mono_error_ok (&error)) {
606 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
607 mono_error_cleanup (&error);
611 mono_custom_attrs_free (cinfo);
616 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
618 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
620 HANDLE_FUNCTION_ENTER ();
622 MonoDelegateHandle result = mono_ftnptr_to_delegate_handle (klass, ftn, &error);
623 mono_error_set_pending_exception (&error);
624 HANDLE_FUNCTION_RETURN_OBJ (result);
628 mono_ftnptr_to_delegate_handle (MonoClass *klass, gpointer ftn, MonoError *error)
630 HANDLE_FUNCTION_ENTER ();
633 MonoDelegateHandle d = MONO_HANDLE_NEW (MonoDelegate, NULL);
638 mono_marshal_lock ();
639 if (delegate_hash_table == NULL)
640 delegate_hash_table = delegate_hash_table_new ();
642 if (mono_gc_is_moving ()) {
643 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
644 mono_marshal_unlock ();
646 MONO_HANDLE_ASSIGN (d, MONO_HANDLE_CAST (MonoDelegate, mono_gchandle_get_target_handle (gchandle)));
648 MONO_HANDLE_ASSIGN (d, MONO_HANDLE_NEW (MonoDelegate, g_hash_table_lookup (delegate_hash_table, ftn)));
649 mono_marshal_unlock ();
651 if (MONO_HANDLE_IS_NULL (d)) {
652 /* This is a native function, so construct a delegate for it */
653 MonoMethodSignature *sig;
655 MonoMarshalSpec **mspecs;
656 MonoMethod *invoke = mono_get_delegate_invoke (klass);
657 MonoMethodPInvoke piinfo;
658 MonoObjectHandle this_obj;
661 if (use_aot_wrappers) {
662 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
663 this_obj = MONO_HANDLE_NEW (MonoObject, mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, error));
667 memset (&piinfo, 0, sizeof (piinfo));
668 parse_unmanaged_function_pointer_attr (klass, &piinfo);
670 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
671 mono_method_get_marshal_info (invoke, mspecs);
672 /* Freed below so don't alloc from mempool */
673 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
676 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
677 this_obj = MONO_HANDLE_NEW (MonoObject, NULL);
679 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
681 mono_metadata_free_marshal_spec (mspecs [i]);
686 MONO_HANDLE_ASSIGN (d, MONO_HANDLE_NEW (MonoDelegate, mono_object_new_checked (mono_domain_get (), klass, error)));
689 gpointer compiled_ptr = mono_compile_method_checked (wrapper, error);
693 mono_delegate_ctor_with_method (MONO_HANDLE_CAST (MonoObject, d), this_obj, compiled_ptr, wrapper, error);
698 g_assert (!MONO_HANDLE_IS_NULL (d));
699 if (MONO_HANDLE_DOMAIN (d) != mono_domain_get ())
700 mono_error_set_not_supported (error, "Delegates cannot be marshalled from native code into a domain other than their home domain");
703 HANDLE_FUNCTION_RETURN_REF (MonoDelegate, d);
707 mono_delegate_free_ftnptr (MonoDelegate *delegate)
712 delegate_hash_table_remove (delegate);
714 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
716 if (!delegate->target) {
717 /* The wrapper method is shared between delegates -> no need to free it */
726 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
729 method = mono_jit_info_get_method (ji);
730 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
732 /*the target gchandle is the first entry after size and the wrapper itself.*/
733 gchandle = GPOINTER_TO_UINT (method_data [2]);
736 mono_gchandle_free (gchandle);
738 mono_runtime_free_method (mono_object_domain (delegate), method);
742 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
744 mono_string_from_byvalstr (const char *data, int max_len)
747 MonoDomain *domain = mono_domain_get ();
753 while (len < max_len - 1 && data [len])
756 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
757 mono_error_set_pending_exception (&error);
761 /* This is a JIT icall, it sets the pending exception and return NULL on error */
763 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
766 MonoString *res = NULL;
767 MonoDomain *domain = mono_domain_get ();
773 while (data [len]) len++;
775 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
776 if (!mono_error_ok (&error)) {
777 mono_error_set_pending_exception (&error);
784 mono_array_to_savearray (MonoArray *array)
789 g_assert_not_reached ();
794 mono_array_to_lparray (MonoArray *array)
797 gpointer *nativeArray = NULL;
798 int nativeArraySize = 0;
808 klass = array->obj.vtable->klass;
810 switch (klass->element_class->byval_arg.type) {
812 g_assert_not_reached ();
814 case MONO_TYPE_CLASS:
815 nativeArraySize = array->max_length;
816 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
817 for(i = 0; i < nativeArraySize; ++i)
818 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
821 case MONO_TYPE_BOOLEAN:
834 case MONO_TYPE_VALUETYPE:
838 case MONO_TYPE_GENERICINST:
839 case MONO_TYPE_OBJECT:
840 case MONO_TYPE_ARRAY:
841 case MONO_TYPE_SZARRAY:
842 case MONO_TYPE_STRING:
844 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
845 g_assert_not_reached ();
848 return array->vector;
852 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
863 klass = array->obj.vtable->klass;
865 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
866 for(i = 0; i < array->max_length; ++i)
867 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
868 g_free (nativeArray);
874 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
876 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
878 if (elclass == mono_defaults.byte_class) {
879 GError *error = NULL;
883 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
886 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
890 g_error_free (error);
893 g_assert_not_reached ();
897 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
899 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
902 /* This is a JIT icall, it sets the pending exception and returns on error */
904 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
906 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
908 if (elclass == mono_defaults.byte_class) {
910 GError *error = NULL;
912 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
914 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
915 g_error_free (error);
919 memcpy (native_arr, as, MIN (strlen (as), elnum));
922 g_assert_not_reached ();
927 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
929 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
932 static MonoStringBuilder *
933 mono_string_builder_new (int starting_string_length)
935 static MonoClass *string_builder_class;
936 static MonoMethod *sb_ctor;
937 static void *args [1];
940 int initial_len = starting_string_length;
946 MonoMethodDesc *desc;
949 string_builder_class = mono_class_get_string_builder_class ();
950 g_assert (string_builder_class);
951 desc = mono_method_desc_new (":.ctor(int)", FALSE);
952 m = mono_method_desc_search_in_class (desc, string_builder_class);
954 mono_method_desc_free (desc);
955 mono_memory_barrier ();
959 // We make a new array in the _to_builder function, so this
960 // array will always be garbage collected.
961 args [0] = &initial_len;
963 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
964 mono_error_assert_ok (&error);
967 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
968 g_assert (exc == NULL);
969 mono_error_assert_ok (&error);
971 g_assert (sb->chunkChars->max_length >= initial_len);
977 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
979 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
980 gunichar2 *charSrc = (gunichar2 *)text;
981 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
983 sb->chunkLength = string_len;
989 mono_string_utf16_to_builder2 (gunichar2 *text)
995 for (len = 0; text [len] != 0; ++len);
997 MonoStringBuilder *sb = mono_string_builder_new (len);
998 mono_string_utf16_to_builder (sb, text);
1004 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
1009 GError *error = NULL;
1011 gunichar2* ut = g_utf8_to_utf16 (text, strlen (text), NULL, &copied, &error);
1012 int capacity = mono_string_builder_capacity (sb);
1014 if (copied > capacity)
1018 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
1019 mono_string_utf16_to_builder_copy (sb, ut, copied);
1021 g_error_free (error);
1027 mono_string_utf8_to_builder2 (char *text)
1032 int len = strlen (text);
1033 MonoStringBuilder *sb = mono_string_builder_new (len);
1034 mono_string_utf8_to_builder (sb, text);
1040 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
1046 for (len = 0; text [len] != 0; ++len);
1048 if (len > mono_string_builder_capacity (sb))
1049 len = mono_string_builder_capacity (sb);
1051 mono_string_utf16_to_builder_copy (sb, text, len);
1055 * mono_string_builder_to_utf8:
1056 * \param sb the string builder
1058 * Converts to utf8 the contents of the \c MonoStringBuilder .
1060 * \returns a utf8 string with the contents of the \c StringBuilder .
1062 * The return value must be released with mono_marshal_free.
1064 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1067 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
1070 GError *gerror = NULL;
1075 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
1077 guint str_len = mono_string_builder_string_length (sb);
1079 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
1082 g_error_free (gerror);
1083 mono_marshal_free (str_utf16);
1084 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1087 guint len = mono_string_builder_capacity (sb) + 1;
1088 gchar *res = (gchar *)mono_marshal_alloc (MAX (byte_count+1, len * sizeof (gchar)), &error);
1089 if (!mono_error_ok (&error)) {
1090 mono_marshal_free (str_utf16);
1092 mono_error_set_pending_exception (&error);
1096 memcpy (res, tmp, byte_count);
1097 res[byte_count] = '\0';
1099 mono_marshal_free (str_utf16);
1106 * mono_string_builder_to_utf16:
1107 * \param sb the string builder
1109 * Converts to utf16 the contents of the \c MonoStringBuilder .
1111 * Returns: a utf16 string with the contents of the \c StringBuilder .
1113 * The return value must be released with mono_marshal_free.
1115 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1118 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1125 g_assert (sb->chunkChars);
1127 guint len = mono_string_builder_capacity (sb);
1132 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1133 if (!mono_error_ok (&error)) {
1134 mono_error_set_pending_exception (&error);
1143 MonoStringBuilder* chunk = sb;
1145 if (chunk->chunkLength > 0) {
1146 // Check that we will not overrun our boundaries.
1147 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1149 if (chunk->chunkLength <= len) {
1150 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1152 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1155 len -= chunk->chunkLength;
1157 chunk = chunk->chunkPrevious;
1158 } while (chunk != NULL);
1164 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1166 mono_string_to_utf8str (MonoString *s)
1169 char *result = mono_string_to_utf8_checked (s, &error);
1170 mono_error_set_pending_exception (&error);
1176 mono_string_to_ansibstr (MonoString *string_obj)
1178 g_error ("UnmanagedMarshal.BStr is not implemented.");
1183 * mono_string_to_byvalstr:
1184 * \param dst Where to store the null-terminated utf8 decoded string.
1185 * \param src the \c MonoString to copy.
1186 * \param size the maximum number of bytes to copy.
1188 * Copies the \c MonoString pointed to by \p src as a utf8 string
1189 * into \p dst, it copies at most \p size bytes into the destination.
1192 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1198 g_assert (dst != NULL);
1199 g_assert (size > 0);
1201 memset (dst, 0, size);
1205 s = mono_string_to_utf8_checked (src, &error);
1206 if (mono_error_set_pending_exception (&error))
1208 len = MIN (size, strlen (s));
1211 memcpy (dst, s, len);
1216 * mono_string_to_byvalwstr:
1217 * \param dst Where to store the null-terminated utf16 decoded string.
1218 * \param src the \c MonoString to copy.
1219 * \param size the maximum number of wide characters to copy (each consumes 2 bytes)
1221 * Copies the \c MonoString pointed to by \p src as a utf16 string into
1222 * \p dst, it copies at most \p size bytes into the destination (including
1223 * a terminating 16-bit zero terminator).
1226 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1230 g_assert (dst != NULL);
1231 g_assert (size > 1);
1234 memset (dst, 0, size * 2);
1238 len = MIN (size, (mono_string_length (src)));
1239 memcpy (dst, mono_string_chars (src), len * 2);
1240 if (size <= mono_string_length (src))
1242 *((gunichar2 *) dst + len) = 0;
1245 /* this is an icall, it sets the pending exception and returns NULL on error */
1247 mono_string_new_len_wrapper (const char *text, guint length)
1250 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1251 mono_error_set_pending_exception (&error);
1258 * mono_mb_emit_exception_marshal_directive:
1260 * This function assumes ownership of MSG, which should be malloc-ed.
1263 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1268 s = mono_image_strdup (mb->method->klass->image, msg);
1273 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1276 #endif /* !DISABLE_JIT */
1279 mono_type_to_ldind (MonoType *type)
1285 switch (type->type) {
1287 return CEE_LDIND_I1;
1289 case MONO_TYPE_BOOLEAN:
1290 return CEE_LDIND_U1;
1292 return CEE_LDIND_I2;
1294 case MONO_TYPE_CHAR:
1295 return CEE_LDIND_U2;
1297 return CEE_LDIND_I4;
1299 return CEE_LDIND_U4;
1303 case MONO_TYPE_FNPTR:
1305 case MONO_TYPE_CLASS:
1306 case MONO_TYPE_STRING:
1307 case MONO_TYPE_OBJECT:
1308 case MONO_TYPE_SZARRAY:
1309 case MONO_TYPE_ARRAY:
1310 return CEE_LDIND_REF;
1313 return CEE_LDIND_I8;
1315 return CEE_LDIND_R4;
1317 return CEE_LDIND_R8;
1318 case MONO_TYPE_VALUETYPE:
1319 if (type->data.klass->enumtype) {
1320 type = mono_class_enum_basetype (type->data.klass);
1324 case MONO_TYPE_TYPEDBYREF:
1326 case MONO_TYPE_GENERICINST:
1327 type = &type->data.generic_class->container_class->byval_arg;
1330 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1336 mono_type_to_stind (MonoType *type)
1339 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1343 switch (type->type) {
1346 case MONO_TYPE_BOOLEAN:
1347 return CEE_STIND_I1;
1350 case MONO_TYPE_CHAR:
1351 return CEE_STIND_I2;
1354 return CEE_STIND_I4;
1358 case MONO_TYPE_FNPTR:
1360 case MONO_TYPE_CLASS:
1361 case MONO_TYPE_STRING:
1362 case MONO_TYPE_OBJECT:
1363 case MONO_TYPE_SZARRAY:
1364 case MONO_TYPE_ARRAY:
1365 return CEE_STIND_REF;
1368 return CEE_STIND_I8;
1370 return CEE_STIND_R4;
1372 return CEE_STIND_R8;
1373 case MONO_TYPE_VALUETYPE:
1374 if (type->data.klass->enumtype) {
1375 type = mono_class_enum_basetype (type->data.klass);
1379 case MONO_TYPE_TYPEDBYREF:
1381 case MONO_TYPE_GENERICINST:
1382 type = &type->data.generic_class->container_class->byval_arg;
1385 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1393 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1396 case MONO_MARSHAL_CONV_BOOL_I4:
1397 mono_mb_emit_ldloc (mb, 1);
1398 mono_mb_emit_ldloc (mb, 0);
1399 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1400 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1401 mono_mb_emit_byte (mb, 3);
1402 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1403 mono_mb_emit_byte (mb, CEE_BR_S);
1404 mono_mb_emit_byte (mb, 1);
1405 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1406 mono_mb_emit_byte (mb, CEE_STIND_I1);
1408 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1409 mono_mb_emit_ldloc (mb, 1);
1410 mono_mb_emit_ldloc (mb, 0);
1411 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1412 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1413 mono_mb_emit_byte (mb, 3);
1414 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1415 mono_mb_emit_byte (mb, CEE_BR_S);
1416 mono_mb_emit_byte (mb, 1);
1417 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1418 mono_mb_emit_byte (mb, CEE_STIND_I1);
1420 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1421 MonoClass *eklass = NULL;
1424 if (type->type == MONO_TYPE_SZARRAY) {
1425 eklass = type->data.klass;
1427 g_assert_not_reached ();
1430 esize = mono_class_native_size (eklass, NULL);
1432 /* create a new array */
1433 mono_mb_emit_ldloc (mb, 1);
1434 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1435 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1436 mono_mb_emit_byte (mb, CEE_STIND_REF);
1438 if (eklass->blittable) {
1439 /* copy the elements */
1440 mono_mb_emit_ldloc (mb, 1);
1441 mono_mb_emit_byte (mb, CEE_LDIND_I);
1442 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1443 mono_mb_emit_byte (mb, CEE_ADD);
1444 mono_mb_emit_ldloc (mb, 0);
1445 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1446 mono_mb_emit_byte (mb, CEE_PREFIX1);
1447 mono_mb_emit_byte (mb, CEE_CPBLK);
1450 int array_var, src_var, dst_var, index_var;
1451 guint32 label2, label3;
1453 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1454 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1455 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1458 mono_mb_emit_ldloc (mb, 1);
1459 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1460 mono_mb_emit_stloc (mb, array_var);
1462 /* save the old src pointer */
1463 mono_mb_emit_ldloc (mb, 0);
1464 mono_mb_emit_stloc (mb, src_var);
1465 /* save the old dst pointer */
1466 mono_mb_emit_ldloc (mb, 1);
1467 mono_mb_emit_stloc (mb, dst_var);
1469 /* Emit marshalling loop */
1470 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1471 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1472 mono_mb_emit_stloc (mb, index_var);
1475 label2 = mono_mb_get_label (mb);
1476 mono_mb_emit_ldloc (mb, index_var);
1477 mono_mb_emit_ldloc (mb, array_var);
1478 mono_mb_emit_byte (mb, CEE_LDLEN);
1479 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1481 /* src is already set */
1484 mono_mb_emit_ldloc (mb, array_var);
1485 mono_mb_emit_ldloc (mb, index_var);
1486 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1487 mono_mb_emit_stloc (mb, 1);
1489 /* Do the conversion */
1490 emit_struct_conv (mb, eklass, TRUE);
1493 mono_mb_emit_add_to_local (mb, index_var, 1);
1495 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1497 mono_mb_patch_branch (mb, label3);
1499 /* restore the old src pointer */
1500 mono_mb_emit_ldloc (mb, src_var);
1501 mono_mb_emit_stloc (mb, 0);
1502 /* restore the old dst pointer */
1503 mono_mb_emit_ldloc (mb, dst_var);
1504 mono_mb_emit_stloc (mb, 1);
1508 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1509 MonoClass *eclass = mono_defaults.char_class;
1511 /* create a new array */
1512 mono_mb_emit_ldloc (mb, 1);
1513 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1514 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1515 mono_mb_emit_byte (mb, CEE_STIND_REF);
1517 mono_mb_emit_ldloc (mb, 1);
1518 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1519 mono_mb_emit_ldloc (mb, 0);
1520 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1521 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1524 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1525 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1526 mono_mb_emit_ldloc (mb, 1);
1527 mono_mb_emit_ldloc (mb, 0);
1528 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1529 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1531 mono_mb_emit_ldloc (mb, 1);
1532 mono_mb_emit_ldloc (mb, 0);
1533 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1535 mono_mb_emit_byte (mb, CEE_STIND_REF);
1537 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1538 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1539 mono_mb_emit_ldloc (mb, 1);
1540 mono_mb_emit_ldloc (mb, 0);
1541 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1542 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1544 mono_mb_emit_ldloc (mb, 1);
1545 mono_mb_emit_ldloc (mb, 0);
1546 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_STR_LPTSTR:
1551 mono_mb_emit_ldloc (mb, 1);
1552 mono_mb_emit_ldloc (mb, 0);
1553 mono_mb_emit_byte (mb, CEE_LDIND_I);
1555 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1557 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1559 mono_mb_emit_byte (mb, CEE_STIND_REF);
1562 // In Mono historically LPSTR was treated as a UTF8STR
1563 case MONO_MARSHAL_CONV_STR_LPSTR:
1564 case MONO_MARSHAL_CONV_STR_UTF8STR:
1565 mono_mb_emit_ldloc (mb, 1);
1566 mono_mb_emit_ldloc (mb, 0);
1567 mono_mb_emit_byte (mb, CEE_LDIND_I);
1568 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1569 mono_mb_emit_byte (mb, CEE_STIND_REF);
1571 case MONO_MARSHAL_CONV_STR_LPWSTR:
1572 mono_mb_emit_ldloc (mb, 1);
1573 mono_mb_emit_ldloc (mb, 0);
1574 mono_mb_emit_byte (mb, CEE_LDIND_I);
1575 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1576 mono_mb_emit_byte (mb, CEE_STIND_REF);
1578 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1579 MonoClass *klass = mono_class_from_mono_type (type);
1580 int src_var, dst_var;
1582 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1583 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1585 /* *dst = new object */
1586 mono_mb_emit_ldloc (mb, 1);
1587 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1588 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1589 mono_mb_emit_byte (mb, CEE_STIND_REF);
1591 /* save the old src pointer */
1592 mono_mb_emit_ldloc (mb, 0);
1593 mono_mb_emit_stloc (mb, src_var);
1594 /* save the old dst pointer */
1595 mono_mb_emit_ldloc (mb, 1);
1596 mono_mb_emit_stloc (mb, dst_var);
1598 /* dst = pointer to newly created object data */
1599 mono_mb_emit_ldloc (mb, 1);
1600 mono_mb_emit_byte (mb, CEE_LDIND_I);
1601 mono_mb_emit_icon (mb, sizeof (MonoObject));
1602 mono_mb_emit_byte (mb, CEE_ADD);
1603 mono_mb_emit_stloc (mb, 1);
1605 emit_struct_conv (mb, klass, TRUE);
1607 /* restore the old src pointer */
1608 mono_mb_emit_ldloc (mb, src_var);
1609 mono_mb_emit_stloc (mb, 0);
1610 /* restore the old dst pointer */
1611 mono_mb_emit_ldloc (mb, dst_var);
1612 mono_mb_emit_stloc (mb, 1);
1615 case MONO_MARSHAL_CONV_DEL_FTN: {
1616 MonoClass *klass = mono_class_from_mono_type (type);
1618 mono_mb_emit_ldloc (mb, 1);
1619 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1620 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1621 mono_mb_emit_ldloc (mb, 0);
1622 mono_mb_emit_byte (mb, CEE_LDIND_I);
1623 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1624 mono_mb_emit_byte (mb, CEE_STIND_REF);
1627 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1628 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1632 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1633 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1634 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1635 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1637 #endif /* DISABLE_COM */
1639 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1641 * Passing SafeHandles as ref does not allow the unmanaged code
1642 * to change the SafeHandle value. If the value is changed,
1643 * we should issue a diagnostic exception (NotSupportedException)
1644 * that informs the user that changes to handles in unmanaged code
1647 * Since we currently have no access to the original
1648 * SafeHandle that was used during the marshalling,
1649 * for now we just ignore this, and ignore/discard any
1650 * changes that might have happened to the handle.
1655 case MONO_MARSHAL_CONV_HANDLEREF: {
1657 * Passing HandleRefs in a struct that is ref()ed does not
1658 * copy the values back to the HandleRef
1663 case MONO_MARSHAL_CONV_STR_BSTR:
1664 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1665 case MONO_MARSHAL_CONV_STR_TBSTR:
1666 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1668 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1670 mono_mb_emit_exception_marshal_directive (mb, msg);
1677 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1680 if (!ind_store_type)
1681 ind_store_type = &dummy;
1682 *ind_store_type = CEE_STIND_I;
1684 case MONO_MARSHAL_CONV_STR_LPWSTR:
1685 return mono_marshal_string_to_utf16;
1686 case MONO_MARSHAL_CONV_LPWSTR_STR:
1687 *ind_store_type = CEE_STIND_REF;
1688 return ves_icall_mono_string_from_utf16;
1689 case MONO_MARSHAL_CONV_LPTSTR_STR:
1690 *ind_store_type = CEE_STIND_REF;
1691 return ves_icall_string_new_wrapper;
1692 case MONO_MARSHAL_CONV_UTF8STR_STR:
1693 case MONO_MARSHAL_CONV_LPSTR_STR:
1694 *ind_store_type = CEE_STIND_REF;
1695 return ves_icall_string_new_wrapper;
1696 case MONO_MARSHAL_CONV_STR_LPTSTR:
1698 return mono_marshal_string_to_utf16;
1700 return mono_string_to_utf8str;
1702 // In Mono historically LPSTR was treated as a UTF8STR
1703 case MONO_MARSHAL_CONV_STR_UTF8STR:
1704 case MONO_MARSHAL_CONV_STR_LPSTR:
1705 return mono_string_to_utf8str;
1706 case MONO_MARSHAL_CONV_STR_BSTR:
1707 return mono_string_to_bstr;
1708 case MONO_MARSHAL_CONV_BSTR_STR:
1709 *ind_store_type = CEE_STIND_REF;
1710 return mono_string_from_bstr_icall;
1711 case MONO_MARSHAL_CONV_STR_TBSTR:
1712 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1713 return mono_string_to_ansibstr;
1714 case MONO_MARSHAL_CONV_SB_UTF8STR:
1715 case MONO_MARSHAL_CONV_SB_LPSTR:
1716 return mono_string_builder_to_utf8;
1717 case MONO_MARSHAL_CONV_SB_LPTSTR:
1719 return mono_string_builder_to_utf16;
1721 return mono_string_builder_to_utf8;
1723 case MONO_MARSHAL_CONV_SB_LPWSTR:
1724 return mono_string_builder_to_utf16;
1725 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1726 return mono_array_to_savearray;
1727 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1728 return mono_array_to_lparray;
1729 case MONO_MARSHAL_FREE_LPARRAY:
1730 return mono_free_lparray;
1731 case MONO_MARSHAL_CONV_DEL_FTN:
1732 return mono_delegate_to_ftnptr;
1733 case MONO_MARSHAL_CONV_FTN_DEL:
1734 *ind_store_type = CEE_STIND_REF;
1735 return mono_ftnptr_to_delegate;
1736 case MONO_MARSHAL_CONV_UTF8STR_SB:
1737 case MONO_MARSHAL_CONV_LPSTR_SB:
1738 *ind_store_type = CEE_STIND_REF;
1739 return mono_string_utf8_to_builder;
1740 case MONO_MARSHAL_CONV_LPTSTR_SB:
1741 *ind_store_type = CEE_STIND_REF;
1743 return mono_string_utf16_to_builder;
1745 return mono_string_utf8_to_builder;
1747 case MONO_MARSHAL_CONV_LPWSTR_SB:
1748 *ind_store_type = CEE_STIND_REF;
1749 return mono_string_utf16_to_builder;
1750 case MONO_MARSHAL_FREE_ARRAY:
1751 return mono_marshal_free_array;
1752 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1753 return mono_string_to_byvalstr;
1754 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1755 return mono_string_to_byvalwstr;
1757 g_assert_not_reached ();
1764 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1770 case MONO_MARSHAL_CONV_BOOL_I4:
1771 mono_mb_emit_ldloc (mb, 1);
1772 mono_mb_emit_ldloc (mb, 0);
1773 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1774 mono_mb_emit_byte (mb, CEE_STIND_I4);
1776 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1777 mono_mb_emit_ldloc (mb, 1);
1778 mono_mb_emit_ldloc (mb, 0);
1779 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1780 mono_mb_emit_byte (mb, CEE_NEG);
1781 mono_mb_emit_byte (mb, CEE_STIND_I2);
1783 // In Mono historically LPSTR was treated as a UTF8STR
1784 case MONO_MARSHAL_CONV_STR_UTF8STR:
1785 case MONO_MARSHAL_CONV_STR_LPWSTR:
1786 case MONO_MARSHAL_CONV_STR_LPSTR:
1787 case MONO_MARSHAL_CONV_STR_LPTSTR:
1788 case MONO_MARSHAL_CONV_STR_BSTR:
1789 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1790 case MONO_MARSHAL_CONV_STR_TBSTR: {
1793 /* free space if free == true */
1794 mono_mb_emit_ldloc (mb, 2);
1795 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1796 mono_mb_emit_ldloc (mb, 1);
1797 mono_mb_emit_byte (mb, CEE_LDIND_I);
1798 mono_mb_emit_icall (mb, g_free);
1799 mono_mb_patch_short_branch (mb, pos);
1801 mono_mb_emit_ldloc (mb, 1);
1802 mono_mb_emit_ldloc (mb, 0);
1803 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1804 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1805 mono_mb_emit_byte (mb, stind_op);
1808 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1809 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1810 case MONO_MARSHAL_CONV_DEL_FTN:
1811 mono_mb_emit_ldloc (mb, 1);
1812 mono_mb_emit_ldloc (mb, 0);
1813 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1814 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1815 mono_mb_emit_byte (mb, stind_op);
1817 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1818 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1821 mono_mb_emit_ldloc (mb, 1); /* dst */
1822 mono_mb_emit_ldloc (mb, 0);
1823 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1824 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1825 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1828 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1829 MonoClass *eklass = NULL;
1832 if (type->type == MONO_TYPE_SZARRAY) {
1833 eklass = type->data.klass;
1835 g_assert_not_reached ();
1838 if (eklass->valuetype)
1839 esize = mono_class_native_size (eklass, NULL);
1841 esize = sizeof (gpointer);
1843 mono_mb_emit_ldloc (mb, 0);
1844 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1845 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1847 if (eklass->blittable) {
1848 mono_mb_emit_ldloc (mb, 1);
1849 mono_mb_emit_ldloc (mb, 0);
1850 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1851 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1852 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1853 mono_mb_emit_byte (mb, CEE_PREFIX1);
1854 mono_mb_emit_byte (mb, CEE_CPBLK);
1856 int array_var, src_var, dst_var, index_var;
1857 guint32 label2, label3;
1859 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1860 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1861 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1864 mono_mb_emit_ldloc (mb, 0);
1865 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1866 mono_mb_emit_stloc (mb, array_var);
1868 /* save the old src pointer */
1869 mono_mb_emit_ldloc (mb, 0);
1870 mono_mb_emit_stloc (mb, src_var);
1871 /* save the old dst pointer */
1872 mono_mb_emit_ldloc (mb, 1);
1873 mono_mb_emit_stloc (mb, dst_var);
1875 /* Emit marshalling loop */
1876 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1877 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1878 mono_mb_emit_stloc (mb, index_var);
1881 label2 = mono_mb_get_label (mb);
1882 mono_mb_emit_ldloc (mb, index_var);
1883 mono_mb_emit_ldloc (mb, array_var);
1884 mono_mb_emit_byte (mb, CEE_LDLEN);
1885 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1888 mono_mb_emit_ldloc (mb, array_var);
1889 mono_mb_emit_ldloc (mb, index_var);
1890 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1891 mono_mb_emit_stloc (mb, 0);
1893 /* dst is already set */
1895 /* Do the conversion */
1896 emit_struct_conv (mb, eklass, FALSE);
1899 mono_mb_emit_add_to_local (mb, index_var, 1);
1901 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1903 mono_mb_patch_branch (mb, label3);
1905 /* restore the old src pointer */
1906 mono_mb_emit_ldloc (mb, src_var);
1907 mono_mb_emit_stloc (mb, 0);
1908 /* restore the old dst pointer */
1909 mono_mb_emit_ldloc (mb, dst_var);
1910 mono_mb_emit_stloc (mb, 1);
1913 mono_mb_patch_branch (mb, pos);
1916 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1917 mono_mb_emit_ldloc (mb, 0);
1918 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1919 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1921 mono_mb_emit_ldloc (mb, 1);
1922 mono_mb_emit_ldloc (mb, 0);
1923 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1924 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1925 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1926 mono_mb_patch_short_branch (mb, pos);
1929 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1930 int src_var, dst_var;
1932 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1933 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1935 mono_mb_emit_ldloc (mb, 0);
1936 mono_mb_emit_byte (mb, CEE_LDIND_I);
1937 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1939 /* save the old src pointer */
1940 mono_mb_emit_ldloc (mb, 0);
1941 mono_mb_emit_stloc (mb, src_var);
1942 /* save the old dst pointer */
1943 mono_mb_emit_ldloc (mb, 1);
1944 mono_mb_emit_stloc (mb, dst_var);
1946 /* src = pointer to object data */
1947 mono_mb_emit_ldloc (mb, 0);
1948 mono_mb_emit_byte (mb, CEE_LDIND_I);
1949 mono_mb_emit_icon (mb, sizeof (MonoObject));
1950 mono_mb_emit_byte (mb, CEE_ADD);
1951 mono_mb_emit_stloc (mb, 0);
1953 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1955 /* restore the old src pointer */
1956 mono_mb_emit_ldloc (mb, src_var);
1957 mono_mb_emit_stloc (mb, 0);
1958 /* restore the old dst pointer */
1959 mono_mb_emit_ldloc (mb, dst_var);
1960 mono_mb_emit_stloc (mb, 1);
1962 mono_mb_patch_branch (mb, pos);
1967 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1968 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1969 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1970 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1972 #endif /* DISABLE_COM */
1974 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1977 mono_mb_emit_ldloc (mb, 0);
1978 mono_mb_emit_byte (mb, CEE_LDIND_I);
1979 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1980 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1981 mono_mb_patch_branch (mb, pos);
1983 /* Pull the handle field from SafeHandle */
1984 mono_mb_emit_ldloc (mb, 1);
1985 mono_mb_emit_ldloc (mb, 0);
1986 mono_mb_emit_byte (mb, CEE_LDIND_I);
1987 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1988 mono_mb_emit_byte (mb, CEE_LDIND_I);
1989 mono_mb_emit_byte (mb, CEE_STIND_I);
1993 case MONO_MARSHAL_CONV_HANDLEREF: {
1994 mono_mb_emit_ldloc (mb, 1);
1995 mono_mb_emit_ldloc (mb, 0);
1996 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1997 mono_mb_emit_byte (mb, CEE_ADD);
1998 mono_mb_emit_byte (mb, CEE_LDIND_I);
1999 mono_mb_emit_byte (mb, CEE_STIND_I);
2004 g_error ("marshalling conversion %d not implemented", conv);
2010 offset_of_first_nonstatic_field (MonoClass *klass)
2013 int fcount = mono_class_get_field_count (klass);
2014 mono_class_setup_fields (klass);
2015 for (i = 0; i < fcount; i++) {
2016 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
2017 return klass->fields[i].offset - sizeof (MonoObject);
2024 get_fixed_buffer_attr (MonoClassField *field, MonoType **out_etype, int *out_len)
2027 MonoCustomAttrInfo *cinfo;
2028 MonoCustomAttrEntry *attr;
2031 cinfo = mono_custom_attrs_from_field_checked (field->parent, field, &error);
2032 if (!is_ok (&error))
2036 for (aindex = 0; aindex < cinfo->num_attrs; ++aindex) {
2037 MonoClass *ctor_class = cinfo->attrs [aindex].ctor->klass;
2038 if (mono_class_has_parent (ctor_class, mono_class_get_fixed_buffer_attribute_class ())) {
2039 attr = &cinfo->attrs [aindex];
2045 MonoArray *typed_args, *named_args;
2046 CattrNamedArg *arginfo;
2049 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
2050 if (!is_ok (&error))
2052 g_assert (mono_array_length (typed_args) == 2);
2055 o = mono_array_get (typed_args, MonoObject*, 0);
2056 *out_etype = monotype_cast (o)->type;
2057 o = mono_array_get (typed_args, MonoObject*, 1);
2058 g_assert (o->vtable->klass == mono_defaults.int32_class);
2059 *out_len = *(gint32*)mono_object_unbox (o);
2062 if (cinfo && !cinfo->cached)
2063 mono_custom_attrs_free (cinfo);
2064 return attr != NULL;
2068 emit_fixed_buf_conv (MonoMethodBuilder *mb, MonoType *type, MonoType *etype, int len, gboolean to_object, int *out_usize)
2070 MonoClass *klass = mono_class_from_mono_type (type);
2071 MonoClass *eklass = mono_class_from_mono_type (etype);
2074 esize = mono_class_native_size (eklass, NULL);
2076 MonoMarshalNative string_encoding = klass->unicode ? MONO_NATIVE_LPWSTR : MONO_NATIVE_LPSTR;
2077 int usize = mono_class_value_size (eklass, NULL);
2078 int msize = mono_class_value_size (eklass, NULL);
2080 //printf ("FIXED: %s %d %d\n", mono_type_full_name (type), eklass->blittable, string_encoding);
2082 if (eklass->blittable) {
2083 /* copy the elements */
2084 mono_mb_emit_ldloc (mb, 1);
2085 mono_mb_emit_ldloc (mb, 0);
2086 mono_mb_emit_icon (mb, len * esize);
2087 mono_mb_emit_byte (mb, CEE_PREFIX1);
2088 mono_mb_emit_byte (mb, CEE_CPBLK);
2091 guint32 label2, label3;
2093 /* Emit marshalling loop */
2094 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2095 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2096 mono_mb_emit_stloc (mb, index_var);
2099 label2 = mono_mb_get_label (mb);
2100 mono_mb_emit_ldloc (mb, index_var);
2101 mono_mb_emit_icon (mb, len);
2102 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2104 /* src/dst is already set */
2106 /* Do the conversion */
2107 MonoTypeEnum t = etype->type;
2113 case MONO_TYPE_BOOLEAN:
2116 case MONO_TYPE_CHAR:
2122 mono_mb_emit_ldloc (mb, 1);
2123 mono_mb_emit_ldloc (mb, 0);
2124 if (t == MONO_TYPE_CHAR && string_encoding != MONO_NATIVE_LPWSTR) {
2126 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2127 mono_mb_emit_byte (mb, CEE_STIND_I2);
2129 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2130 mono_mb_emit_byte (mb, CEE_STIND_I1);
2134 mono_mb_emit_byte (mb, mono_type_to_ldind (etype));
2135 mono_mb_emit_byte (mb, mono_type_to_stind (etype));
2139 g_assert_not_reached ();
2144 mono_mb_emit_add_to_local (mb, 0, usize);
2145 mono_mb_emit_add_to_local (mb, 1, msize);
2147 mono_mb_emit_add_to_local (mb, 0, msize);
2148 mono_mb_emit_add_to_local (mb, 1, usize);
2152 mono_mb_emit_add_to_local (mb, index_var, 1);
2154 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2156 mono_mb_patch_branch (mb, label3);
2159 *out_usize = usize * len;
2163 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
2164 int offset_of_first_child_field, MonoMarshalNative string_encoding)
2166 MonoMarshalType *info;
2170 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
2172 info = mono_marshal_load_type_info (klass);
2174 if (info->native_size == 0)
2177 if (klass->blittable) {
2178 int usize = mono_class_value_size (klass, NULL);
2179 g_assert (usize == info->native_size);
2180 mono_mb_emit_ldloc (mb, 1);
2181 mono_mb_emit_ldloc (mb, 0);
2182 mono_mb_emit_icon (mb, usize);
2183 mono_mb_emit_byte (mb, CEE_PREFIX1);
2184 mono_mb_emit_byte (mb, CEE_CPBLK);
2187 mono_mb_emit_add_to_local (mb, 0, usize);
2188 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
2190 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
2191 mono_mb_emit_add_to_local (mb, 1, usize);
2196 if (klass != mono_class_try_get_safehandle_class ()) {
2197 if (mono_class_is_auto_layout (klass)) {
2198 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
2199 mono_type_full_name (&klass->byval_arg));
2200 mono_mb_emit_exception_marshal_directive (mb, msg);
2205 for (i = 0; i < info->num_fields; i++) {
2206 MonoMarshalNative ntype;
2207 MonoMarshalConv conv;
2208 MonoType *ftype = info->fields [i].field->type;
2211 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2213 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2216 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2219 msize = klass->instance_size - info->fields [i].field->offset;
2220 usize = info->native_size - info->fields [i].offset;
2222 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2223 usize = info->fields [i + 1].offset - info->fields [i].offset;
2226 if (klass != mono_class_try_get_safehandle_class ()){
2228 * FIXME: Should really check for usize==0 and msize>0, but we apply
2229 * the layout to the managed structure as well.
2232 if (mono_class_is_explicit_layout (klass) && (usize == 0)) {
2233 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2234 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2235 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2236 "reference field at the same offset as another field.",
2237 mono_type_full_name (&klass->byval_arg));
2242 case MONO_MARSHAL_CONV_NONE: {
2245 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2246 g_assert (!ftype->byref);
2247 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2248 mono_mb_emit_ldloc (mb, 1);
2249 mono_mb_emit_ldloc (mb, 0);
2250 mono_mb_emit_byte (mb, CEE_LDIND_I);
2251 mono_mb_emit_byte (mb, CEE_STIND_I);
2262 case MONO_TYPE_BOOLEAN:
2265 case MONO_TYPE_CHAR:
2271 mono_mb_emit_ldloc (mb, 1);
2272 mono_mb_emit_ldloc (mb, 0);
2273 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2275 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2276 mono_mb_emit_byte (mb, CEE_STIND_I2);
2278 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2279 mono_mb_emit_byte (mb, CEE_STIND_I1);
2282 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2283 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2286 case MONO_TYPE_VALUETYPE: {
2287 int src_var, dst_var;
2291 if (ftype->data.klass->enumtype) {
2292 ftype = mono_class_enum_basetype (ftype->data.klass);
2296 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2297 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2299 /* save the old src pointer */
2300 mono_mb_emit_ldloc (mb, 0);
2301 mono_mb_emit_stloc (mb, src_var);
2302 /* save the old dst pointer */
2303 mono_mb_emit_ldloc (mb, 1);
2304 mono_mb_emit_stloc (mb, dst_var);
2306 if (get_fixed_buffer_attr (info->fields [i].field, &etype, &len)) {
2307 emit_fixed_buf_conv (mb, ftype, etype, len, to_object, &usize);
2309 emit_struct_conv (mb, ftype->data.klass, to_object);
2312 /* restore the old src pointer */
2313 mono_mb_emit_ldloc (mb, src_var);
2314 mono_mb_emit_stloc (mb, 0);
2315 /* restore the old dst pointer */
2316 mono_mb_emit_ldloc (mb, dst_var);
2317 mono_mb_emit_stloc (mb, 1);
2320 case MONO_TYPE_OBJECT: {
2323 static MonoMethod *variant_clear = NULL;
2324 static MonoMethod *get_object_for_native_variant = NULL;
2327 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2328 if (!get_object_for_native_variant)
2329 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2330 mono_mb_emit_ldloc (mb, 1);
2331 mono_mb_emit_ldloc (mb, 0);
2332 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2333 mono_mb_emit_byte (mb, CEE_STIND_REF);
2335 mono_mb_emit_ldloc (mb, 0);
2336 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2339 static MonoMethod *get_native_variant_for_object = NULL;
2341 if (!get_native_variant_for_object)
2342 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2344 mono_mb_emit_ldloc (mb, 0);
2345 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2346 mono_mb_emit_ldloc (mb, 1);
2347 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2350 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2351 mono_mb_emit_exception_marshal_directive (mb, msg);
2357 g_warning ("marshaling type %02x not implemented", ftype->type);
2358 g_assert_not_reached ();
2363 int src_var, dst_var;
2365 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2366 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2368 /* save the old src pointer */
2369 mono_mb_emit_ldloc (mb, 0);
2370 mono_mb_emit_stloc (mb, src_var);
2371 /* save the old dst pointer */
2372 mono_mb_emit_ldloc (mb, 1);
2373 mono_mb_emit_stloc (mb, dst_var);
2376 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2378 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2380 /* restore the old src pointer */
2381 mono_mb_emit_ldloc (mb, src_var);
2382 mono_mb_emit_stloc (mb, 0);
2383 /* restore the old dst pointer */
2384 mono_mb_emit_ldloc (mb, dst_var);
2385 mono_mb_emit_stloc (mb, 1);
2390 mono_mb_emit_add_to_local (mb, 0, usize);
2391 mono_mb_emit_add_to_local (mb, 1, msize);
2393 mono_mb_emit_add_to_local (mb, 0, msize);
2394 mono_mb_emit_add_to_local (mb, 1, usize);
2400 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2402 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2406 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2408 /* Call DestroyStructure */
2409 /* FIXME: Only do this if needed */
2410 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2411 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2412 mono_mb_emit_ldloc (mb, struct_var);
2413 mono_mb_emit_icall (mb, mono_struct_delete_old);
2417 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2419 int pos_noabort, pos_noex;
2421 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2422 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2423 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2424 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2426 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2427 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2429 mono_mb_emit_icall (mb, checkpoint_func);
2430 /* Throw the exception returned by the checkpoint function, if any */
2431 mono_mb_emit_byte (mb, CEE_DUP);
2432 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2433 mono_mb_emit_byte (mb, CEE_THROW);
2434 mono_mb_patch_branch (mb, pos_noex);
2435 mono_mb_emit_byte (mb, CEE_POP);
2437 mono_mb_patch_branch (mb, pos_noabort);
2441 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2443 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2446 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2450 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2452 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2456 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2458 emit_thread_interrupt_checkpoint (mb);
2462 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2464 emit_thread_force_interrupt_checkpoint (mb);
2467 #endif /* DISABLE_JIT */
2469 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2470 static MonoAsyncResult *
2471 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2474 MonoMulticastDelegate *mcast_delegate;
2478 g_assert (delegate);
2479 mcast_delegate = (MonoMulticastDelegate *) delegate;
2480 if (mcast_delegate->delegates != NULL) {
2481 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2485 #ifndef DISABLE_REMOTING
2486 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2487 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2488 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2489 /* If the target is a proxy, make a direct call. Is proxy's work
2490 // to make the call asynchronous.
2492 MonoMethodMessage *msg;
2493 MonoDelegate *async_callback;
2495 MonoAsyncResult *ares;
2497 MonoArray *out_args;
2498 method = delegate->method;
2500 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2501 if (mono_error_set_pending_exception (&error))
2503 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2504 if (mono_error_set_pending_exception (&error))
2506 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2507 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2508 MONO_OBJECT_SETREF (msg, async_result, ares);
2509 msg->call_type = CallType_BeginInvoke;
2512 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2513 if (!mono_error_ok (&error)) {
2514 mono_error_set_pending_exception (&error);
2518 mono_set_pending_exception ((MonoException *) exc);
2524 klass = delegate->object.vtable->klass;
2526 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2528 method = mono_get_delegate_invoke (klass);
2531 MonoAsyncResult *result = mono_threadpool_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2532 mono_error_set_pending_exception (&error);
2539 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2541 int i, params_var, tmp_var;
2543 /* allocate local (pointer) *params[] */
2544 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2545 /* allocate local (pointer) tmp */
2546 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2548 /* alloate space on stack to store an array of pointers to the arguments */
2549 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2550 mono_mb_emit_byte (mb, CEE_PREFIX1);
2551 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2552 mono_mb_emit_stloc (mb, params_var);
2555 mono_mb_emit_ldloc (mb, params_var);
2556 mono_mb_emit_stloc (mb, tmp_var);
2558 if (save_this && sig->hasthis) {
2559 mono_mb_emit_ldloc (mb, tmp_var);
2560 mono_mb_emit_ldarg_addr (mb, 0);
2561 mono_mb_emit_byte (mb, CEE_STIND_I);
2562 /* tmp = tmp + sizeof (gpointer) */
2563 if (sig->param_count)
2564 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2568 for (i = 0; i < sig->param_count; i++) {
2569 mono_mb_emit_ldloc (mb, tmp_var);
2570 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2571 mono_mb_emit_byte (mb, CEE_STIND_I);
2572 /* tmp = tmp + sizeof (gpointer) */
2573 if (i < (sig->param_count - 1))
2574 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2580 #endif /* DISABLE_JIT */
2583 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2587 GString *res = g_string_new ("");
2590 g_string_append (res, prefix);
2591 g_string_append_c (res, '_');
2594 mono_type_get_desc (res, sig->ret, FALSE);
2597 g_string_append (res, "__this__");
2599 for (i = 0; i < sig->param_count; ++i) {
2600 g_string_append_c (res, '_');
2601 mono_type_get_desc (res, sig->params [i], FALSE);
2604 g_string_free (res, FALSE);
2609 * mono_marshal_get_string_encoding:
2611 * Return the string encoding which should be used for a given parameter.
2613 static MonoMarshalNative
2614 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2616 /* First try the parameter marshal info */
2618 if (spec->native == MONO_NATIVE_LPARRAY) {
2619 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2620 return spec->data.array_data.elem_type;
2623 return spec->native;
2627 return MONO_NATIVE_LPSTR;
2629 /* Then try the method level marshal info */
2630 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2631 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2632 return MONO_NATIVE_LPSTR;
2633 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2634 return MONO_NATIVE_LPWSTR;
2635 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2637 return MONO_NATIVE_LPWSTR;
2639 return MONO_NATIVE_LPSTR;
2642 return MONO_NATIVE_LPSTR;
2646 static MonoMarshalConv
2647 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2649 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2652 case MONO_NATIVE_LPWSTR:
2653 return MONO_MARSHAL_CONV_STR_LPWSTR;
2654 case MONO_NATIVE_LPSTR:
2655 case MONO_NATIVE_VBBYREFSTR:
2656 return MONO_MARSHAL_CONV_STR_LPSTR;
2657 case MONO_NATIVE_LPTSTR:
2658 return MONO_MARSHAL_CONV_STR_LPTSTR;
2659 case MONO_NATIVE_BSTR:
2660 return MONO_MARSHAL_CONV_STR_BSTR;
2661 case MONO_NATIVE_UTF8STR:
2662 return MONO_MARSHAL_CONV_STR_UTF8STR;
2664 return MONO_MARSHAL_CONV_INVALID;
2668 static MonoMarshalConv
2669 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2671 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2674 case MONO_NATIVE_LPWSTR:
2675 return MONO_MARSHAL_CONV_SB_LPWSTR;
2676 case MONO_NATIVE_LPSTR:
2677 return MONO_MARSHAL_CONV_SB_LPSTR;
2678 case MONO_NATIVE_UTF8STR:
2679 return MONO_MARSHAL_CONV_SB_UTF8STR;
2680 case MONO_NATIVE_LPTSTR:
2681 return MONO_MARSHAL_CONV_SB_LPTSTR;
2683 return MONO_MARSHAL_CONV_INVALID;
2687 static MonoMarshalConv
2688 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2690 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2695 case MONO_NATIVE_LPWSTR:
2697 return MONO_MARSHAL_CONV_LPWSTR_STR;
2698 case MONO_NATIVE_UTF8STR:
2699 return MONO_MARSHAL_CONV_UTF8STR_STR;
2700 case MONO_NATIVE_LPSTR:
2701 case MONO_NATIVE_VBBYREFSTR:
2702 return MONO_MARSHAL_CONV_LPSTR_STR;
2703 case MONO_NATIVE_LPTSTR:
2707 return MONO_MARSHAL_CONV_LPTSTR_STR;
2708 case MONO_NATIVE_BSTR:
2709 return MONO_MARSHAL_CONV_BSTR_STR;
2711 return MONO_MARSHAL_CONV_INVALID;
2715 static MonoMarshalConv
2716 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2718 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2723 case MONO_NATIVE_LPWSTR:
2725 * mono_string_builder_to_utf16 does not allocate a
2726 * new buffer, so no need to free it.
2729 return MONO_MARSHAL_CONV_LPWSTR_SB;
2730 case MONO_NATIVE_UTF8STR:
2731 return MONO_MARSHAL_CONV_UTF8STR_SB;
2732 case MONO_NATIVE_LPSTR:
2733 return MONO_MARSHAL_CONV_LPSTR_SB;
2735 case MONO_NATIVE_LPTSTR:
2736 return MONO_MARSHAL_CONV_LPTSTR_SB;
2739 return MONO_MARSHAL_CONV_INVALID;
2744 * Return whenever a field of a native structure or an array member needs to
2748 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2750 MonoMarshalNative encoding;
2753 case MONO_TYPE_VALUETYPE:
2754 /* FIXME: Optimize this */
2756 case MONO_TYPE_OBJECT:
2757 case MONO_TYPE_CLASS:
2758 if (t->data.klass == mono_defaults.stringbuilder_class) {
2760 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2764 case MONO_TYPE_STRING:
2765 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2766 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2773 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2776 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2779 mono_marshal_lock ();
2782 g_hash_table_new (hash_func, equal_func);
2783 mono_memory_barrier ();
2786 mono_marshal_unlock ();
2792 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2794 return get_cache (var, hash_func, equal_func);
2798 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2802 mono_marshal_lock ();
2803 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2804 mono_marshal_unlock ();
2811 * Create a MonoMethod from MB, set INFO as wrapper info.
2814 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2815 int max_stack, WrapperInfo *info)
2819 res = mono_mb_create_method (mb, sig, max_stack);
2821 mono_marshal_set_wrapper_info (res, info);
2825 /* Create the method from the builder and place it in the cache */
2827 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2828 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2829 int max_stack, WrapperInfo *info, gboolean *out_found)
2836 mono_marshal_lock ();
2837 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2838 mono_marshal_unlock ();
2841 newm = mono_mb_create_method (mb, sig, max_stack);
2842 mono_marshal_lock ();
2843 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2846 g_hash_table_insert (cache, key, res);
2847 mono_marshal_set_wrapper_info (res, info);
2848 mono_marshal_unlock ();
2852 mono_marshal_unlock ();
2853 mono_free_method (newm);
2861 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2862 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2865 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2869 * mono_marshal_method_from_wrapper:
2872 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2875 int wrapper_type = wrapper->wrapper_type;
2878 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2881 info = mono_marshal_get_wrapper_info (wrapper);
2883 switch (wrapper_type) {
2884 case MONO_WRAPPER_REMOTING_INVOKE:
2885 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2886 case MONO_WRAPPER_XDOMAIN_INVOKE:
2887 m = info->d.remoting.method;
2888 if (wrapper->is_inflated) {
2892 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2893 * contains an uninflated method.
2895 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2896 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2900 case MONO_WRAPPER_SYNCHRONIZED:
2901 m = info->d.synchronized.method;
2902 if (wrapper->is_inflated) {
2905 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2906 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2910 case MONO_WRAPPER_UNBOX:
2911 return info->d.unbox.method;
2912 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2913 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2914 return info->d.managed_to_native.method;
2917 case MONO_WRAPPER_RUNTIME_INVOKE:
2918 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2919 return info->d.runtime_invoke.method;
2922 case MONO_WRAPPER_DELEGATE_INVOKE:
2924 return info->d.delegate_invoke.method;
2933 * mono_marshal_get_wrapper_info:
2935 * Retrieve the WrapperInfo structure associated with WRAPPER.
2938 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2940 g_assert (wrapper->wrapper_type);
2942 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2946 * mono_marshal_set_wrapper_info:
2948 * Set the WrapperInfo structure associated with the wrapper
2949 * method METHOD to INFO.
2952 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2956 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2959 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2964 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2968 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2969 info->subtype = subtype;
2974 * get_wrapper_target_class:
2976 * Return the class where a wrapper method should be placed.
2979 get_wrapper_target_class (MonoImage *image)
2986 * - can't put all wrappers into an mscorlib class, because they reference
2987 * metadata (signature) so they should be put into the same image as the
2988 * method they wrap, so they are unloaded together.
2989 * - putting them into a class with a type initalizer could cause the
2990 * initializer to be executed which can be a problem if the wrappers are
2992 * - putting them into an inflated class can cause problems if the the
2993 * class is deleted because it references an image which is unloaded.
2994 * To avoid these problems, we put the wrappers into the <Module> class of
2997 if (image_is_dynamic (image)) {
2998 klass = ((MonoDynamicImage*)image)->wrappers_type;
3000 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
3001 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3009 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
3010 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
3014 * check_generic_wrapper_cache:
3016 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
3017 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
3018 * generic method definition.
3021 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
3024 MonoMethod *inst, *def;
3025 MonoGenericContext *ctx;
3027 g_assert (orig_method->is_inflated);
3028 ctx = mono_method_get_context (orig_method);
3031 * Look for the instance
3033 res = mono_marshal_find_in_cache (cache, key);
3038 * Look for the definition
3040 def = mono_marshal_find_in_cache (cache, def_key);
3043 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3044 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3046 mono_memory_barrier ();
3047 mono_marshal_lock ();
3048 res = (MonoMethod *)g_hash_table_lookup (cache, key);
3050 g_hash_table_insert (cache, key, inst);
3053 mono_marshal_unlock ();
3060 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
3063 MonoMethod *inst, *res;
3066 * We use the same cache for the generic definition and the instances.
3068 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3069 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3070 mono_memory_barrier ();
3071 mono_marshal_lock ();
3072 res = (MonoMethod *)g_hash_table_lookup (cache, key);
3074 g_hash_table_insert (cache, key, inst);
3077 mono_marshal_unlock ();
3082 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
3086 MonoMethod *inst, *def;
3089 * Look for the instance
3091 res = mono_marshal_find_in_cache (cache, orig_method->klass);
3096 * Look for the definition
3098 def = mono_marshal_find_in_cache (cache, def_method->klass);
3100 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3101 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3104 mono_memory_barrier ();
3105 mono_marshal_lock ();
3106 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3108 g_hash_table_insert (cache, orig_method->klass, inst);
3111 mono_marshal_unlock ();
3118 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
3121 MonoMethod *inst, *res;
3122 WrapperInfo *ginfo, *info;
3125 * We use the same cache for the generic definition and the instances.
3127 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3128 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3130 ginfo = mono_marshal_get_wrapper_info (def);
3132 info = (WrapperInfo *)mono_image_alloc0 (def->klass->image, sizeof (WrapperInfo));
3133 info->subtype = ginfo->subtype;
3134 if (info->subtype == WRAPPER_SUBTYPE_NONE) {
3135 info->d.delegate_invoke.method = mono_class_inflate_generic_method_checked (ginfo->d.delegate_invoke.method, ctx, &error);
3136 mono_error_assert_ok (&error);
3140 mono_memory_barrier ();
3141 mono_marshal_lock ();
3142 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3144 g_hash_table_insert (cache, orig_method->klass, inst);
3147 mono_marshal_unlock ();
3152 * mono_marshal_get_delegate_begin_invoke:
3155 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
3157 MonoMethodSignature *sig;
3158 MonoMethodBuilder *mb;
3163 MonoGenericContext *ctx = NULL;
3164 MonoMethod *orig_method = NULL;
3166 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3167 !strcmp (method->name, "BeginInvoke"));
3170 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3172 if (method->is_inflated) {
3173 orig_method = method;
3174 ctx = &((MonoMethodInflated*)method)->context;
3175 method = ((MonoMethodInflated*)method)->declaring;
3178 sig = mono_signature_no_pinvoke (method);
3184 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
3185 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3189 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
3190 (GHashFunc)mono_signature_hash,
3191 (GCompareFunc)mono_metadata_signature_equal);
3192 if ((res = mono_marshal_find_in_cache (cache, sig)))
3196 g_assert (sig->hasthis);
3198 name = mono_signature_to_name (sig, "begin_invoke");
3200 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3202 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3206 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3208 mono_mb_emit_ldarg (mb, 0);
3209 mono_mb_emit_ldloc (mb, params_var);
3210 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3211 mono_mb_emit_byte (mb, CEE_RET);
3216 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3217 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3219 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3226 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
3228 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3231 MonoDomain *domain = mono_domain_get ();
3232 MonoAsyncResult *ares;
3233 MonoMethod *method = NULL;
3234 MonoMethodSignature *sig;
3235 MonoMethodMessage *msg;
3236 MonoObject *res, *exc;
3237 MonoArray *out_args;
3240 g_assert (delegate);
3242 if (!delegate->method_info) {
3243 g_assert (delegate->method);
3244 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
3245 if (!mono_error_ok (&error)) {
3246 mono_error_set_pending_exception (&error);
3249 MONO_OBJECT_SETREF (delegate, method_info, rm);
3252 if (!delegate->method_info || !delegate->method_info->method)
3253 g_assert_not_reached ();
3255 klass = delegate->object.vtable->klass;
3257 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3258 g_assert (method != NULL);
3260 sig = mono_signature_no_pinvoke (method);
3262 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3263 if (mono_error_set_pending_exception (&error))
3266 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3268 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."));
3272 if (ares->async_delegate != (MonoObject*)delegate) {
3273 mono_set_pending_exception (mono_get_exception_invalid_operation (
3274 "The IAsyncResult object provided does not match this delegate."));
3278 #ifndef DISABLE_REMOTING
3279 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3280 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3281 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3282 if (!mono_error_ok (&error)) {
3283 mono_error_set_pending_exception (&error);
3286 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3287 if (mono_error_set_pending_exception (&error))
3289 msg->call_type = CallType_EndInvoke;
3290 MONO_OBJECT_SETREF (msg, async_result, ares);
3291 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3292 if (!mono_error_ok (&error)) {
3293 mono_error_set_pending_exception (&error);
3299 res = mono_threadpool_end_invoke (ares, &out_args, &exc, &error);
3300 if (mono_error_set_pending_exception (&error))
3305 if (((MonoException*)exc)->stack_trace) {
3306 MonoError inner_error;
3307 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3308 if (is_ok (&inner_error)) {
3310 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3312 MonoString *tmp_str = mono_string_new_checked (domain, tmp, &inner_error);
3314 if (is_ok (&inner_error))
3315 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, tmp_str);
3317 if (!is_ok (&inner_error))
3318 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3320 mono_set_pending_exception ((MonoException*)exc);
3323 mono_method_return_message_restore (method, params, out_args, &error);
3324 mono_error_set_pending_exception (&error);
3331 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3333 MonoType *t = mono_type_get_underlying_type (return_type);
3335 if (return_type->byref)
3336 return_type = &mono_defaults.int_class->byval_arg;
3339 case MONO_TYPE_VOID:
3340 g_assert_not_reached ();
3343 case MONO_TYPE_STRING:
3344 case MONO_TYPE_CLASS:
3345 case MONO_TYPE_OBJECT:
3346 case MONO_TYPE_ARRAY:
3347 case MONO_TYPE_SZARRAY:
3351 case MONO_TYPE_BOOLEAN:
3354 case MONO_TYPE_CHAR:
3364 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3365 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3367 case MONO_TYPE_GENERICINST:
3368 if (!mono_type_generic_inst_is_valuetype (t))
3371 case MONO_TYPE_VALUETYPE: {
3372 MonoClass *klass = mono_class_from_mono_type (return_type);
3373 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3374 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3378 case MONO_TYPE_MVAR: {
3379 MonoClass *klass = mono_class_from_mono_type (return_type);
3380 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3384 g_warning ("type 0x%x not handled", return_type->type);
3385 g_assert_not_reached ();
3388 mono_mb_emit_byte (mb, CEE_RET);
3391 #endif /* DISABLE_JIT */
3394 * mono_marshal_get_delegate_end_invoke:
3397 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3399 MonoMethodSignature *sig;
3400 MonoMethodBuilder *mb;
3405 MonoGenericContext *ctx = NULL;
3406 MonoMethod *orig_method = NULL;
3408 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3409 !strcmp (method->name, "EndInvoke"));
3412 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3414 if (method->is_inflated) {
3415 orig_method = method;
3416 ctx = &((MonoMethodInflated*)method)->context;
3417 method = ((MonoMethodInflated*)method)->declaring;
3420 sig = mono_signature_no_pinvoke (method);
3426 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3427 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3431 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3432 (GHashFunc)mono_signature_hash,
3433 (GCompareFunc)mono_metadata_signature_equal);
3434 if ((res = mono_marshal_find_in_cache (cache, sig)))
3438 g_assert (sig->hasthis);
3440 name = mono_signature_to_name (sig, "end_invoke");
3442 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3444 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3448 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3450 mono_mb_emit_ldarg (mb, 0);
3451 mono_mb_emit_ldloc (mb, params_var);
3452 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3454 if (sig->ret->type == MONO_TYPE_VOID) {
3455 mono_mb_emit_byte (mb, CEE_POP);
3456 mono_mb_emit_byte (mb, CEE_RET);
3458 mono_mb_emit_restore_result (mb, sig->ret);
3463 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3464 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3466 res = mono_mb_create_and_cache (cache, sig,
3467 mb, sig, sig->param_count + 16);
3476 MonoMethodSignature *sig;
3478 } SignaturePointerPair;
3481 signature_pointer_pair_hash (gconstpointer data)
3483 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3485 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3489 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3491 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3492 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3496 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3498 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3500 return pair->pointer == user_data;
3504 free_signature_pointer_pair (SignaturePointerPair *pair)
3510 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3512 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3514 MonoMethodBuilder *mb;
3517 gpointer cache_key = NULL;
3518 SignaturePointerPair key = { NULL, NULL };
3519 SignaturePointerPair *new_key;
3520 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3521 int pos0, pos1, pos2;
3523 MonoClass *target_class = NULL;
3524 gboolean closed_over_null = FALSE;
3525 MonoGenericContext *ctx = NULL;
3526 MonoGenericContainer *container = NULL;
3527 MonoMethod *orig_method = method;
3529 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3533 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3534 !strcmp (method->name, "Invoke"));
3536 invoke_sig = sig = mono_signature_no_pinvoke (method);
3539 * If the delegate target is null, and the target method is not static, a virtual
3540 * call is made to that method with the first delegate argument as this. This is
3541 * a non-documented .NET feature.
3544 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3545 if (target_method->is_inflated) {
3547 MonoType *target_type;
3549 g_assert (method->signature->hasthis);
3550 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3551 mono_method_get_context (method), &error);
3552 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3553 target_class = mono_class_from_mono_type (target_type);
3555 target_class = target_method->klass;
3558 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3561 if (static_method_with_first_arg_bound) {
3562 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3563 g_assert (!callvirt);
3564 invoke_sig = mono_method_signature (target_method);
3568 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3570 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3571 ctx = &((MonoMethodInflated*)method)->context;
3572 method = ((MonoMethodInflated*)method)->declaring;
3574 container = mono_method_get_generic_container (method);
3576 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
3577 g_assert (container);
3579 invoke_sig = sig = mono_signature_no_pinvoke (method);
3586 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3587 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3590 cache_key = method->klass;
3591 } else if (static_method_with_first_arg_bound) {
3592 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3593 (GHashFunc)mono_signature_hash,
3594 (GCompareFunc)mono_metadata_signature_equal);
3596 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3598 res = mono_marshal_find_in_cache (cache, invoke_sig);
3601 cache_key = invoke_sig;
3602 } else if (callvirt) {
3603 GHashTable **cache_ptr;
3605 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3607 /* We need to cache the signature+method pair */
3608 mono_marshal_lock ();
3610 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3612 key.sig = invoke_sig;
3613 key.pointer = target_method;
3614 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3615 mono_marshal_unlock ();
3619 // Inflated methods should not be in this cache because it's not stored on the imageset.
3620 g_assert (!method->is_inflated);
3621 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3622 (GHashFunc)mono_signature_hash,
3623 (GCompareFunc)mono_metadata_signature_equal);
3624 res = mono_marshal_find_in_cache (cache, sig);
3630 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3631 static_sig->hasthis = 0;
3632 if (!static_method_with_first_arg_bound)
3633 invoke_sig = static_sig;
3635 if (static_method_with_first_arg_bound)
3636 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3637 else if (closed_over_null)
3638 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3640 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3642 name = mono_signature_to_name (invoke_sig, "invoke");
3644 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3646 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3650 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3652 /* allocate local 0 (object) */
3653 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3654 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3655 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3656 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3657 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3660 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3662 g_assert (sig->hasthis);
3665 * {type: sig->ret} res;
3666 * if (delegates == null) {
3667 * return this.<target> ( args .. );
3669 * int i = 0, len = this.delegates.Length;
3671 * res = this.delegates [i].Invoke ( args .. );
3672 * } while (++i < len);
3677 /* this wrapper can be used in unmanaged-managed transitions */
3678 emit_thread_interrupt_checkpoint (mb);
3680 /* delegates = this.delegates */
3681 mono_mb_emit_ldarg (mb, 0);
3682 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3683 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3684 mono_mb_emit_stloc (mb, local_delegates);
3686 /* if (delegates == null) */
3687 mono_mb_emit_ldloc (mb, local_delegates);
3688 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3690 /* return target.<target_method|method_ptr> ( args .. ); */
3692 /* target = d.target; */
3693 mono_mb_emit_ldarg (mb, 0);
3694 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3695 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3696 mono_mb_emit_stloc (mb, local_target);
3698 /*static methods with bound first arg can have null target and still be bound*/
3699 if (!static_method_with_first_arg_bound) {
3700 /* if target != null */
3701 mono_mb_emit_ldloc (mb, local_target);
3702 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3704 /* then call this->method_ptr nonstatic */
3707 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3709 mono_mb_emit_ldloc (mb, local_target);
3710 for (i = 0; i < sig->param_count; ++i)
3711 mono_mb_emit_ldarg (mb, i + 1);
3712 mono_mb_emit_ldarg (mb, 0);
3713 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3714 mono_mb_emit_byte (mb, CEE_LDIND_I);
3715 mono_mb_emit_ldarg (mb, 0);
3716 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3717 mono_mb_emit_byte (mb, CEE_LDIND_I);
3718 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3719 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3720 mono_mb_emit_byte (mb, CEE_RET);
3723 /* else [target == null] call this->method_ptr static */
3724 mono_mb_patch_branch (mb, pos0);
3728 if (!closed_over_null) {
3729 if (target_class->valuetype) {
3730 mono_mb_emit_ldarg (mb, 1);
3731 for (i = 1; i < sig->param_count; ++i)
3732 mono_mb_emit_ldarg (mb, i + 1);
3733 mono_mb_emit_op (mb, CEE_CALL, target_method);
3735 mono_mb_emit_ldarg (mb, 1);
3736 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3737 for (i = 1; i < sig->param_count; ++i)
3738 mono_mb_emit_ldarg (mb, i + 1);
3739 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3742 mono_mb_emit_byte (mb, CEE_LDNULL);
3743 for (i = 0; i < sig->param_count; ++i)
3744 mono_mb_emit_ldarg (mb, i + 1);
3745 mono_mb_emit_op (mb, CEE_CALL, target_method);
3748 if (static_method_with_first_arg_bound) {
3749 mono_mb_emit_ldloc (mb, local_target);
3750 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3751 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3753 for (i = 0; i < sig->param_count; ++i)
3754 mono_mb_emit_ldarg (mb, i + 1);
3755 mono_mb_emit_ldarg (mb, 0);
3756 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3757 mono_mb_emit_byte (mb, CEE_LDIND_I);
3758 mono_mb_emit_ldarg (mb, 0);
3759 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3760 mono_mb_emit_byte (mb, CEE_LDIND_I);
3761 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3762 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3765 mono_mb_emit_byte (mb, CEE_RET);
3767 /* else [delegates != null] */
3768 mono_mb_patch_branch (mb, pos2);
3770 /* len = delegates.Length; */
3771 mono_mb_emit_ldloc (mb, local_delegates);
3772 mono_mb_emit_byte (mb, CEE_LDLEN);
3773 mono_mb_emit_byte (mb, CEE_CONV_I4);
3774 mono_mb_emit_stloc (mb, local_len);
3777 mono_mb_emit_icon (mb, 0);
3778 mono_mb_emit_stloc (mb, local_i);
3780 pos1 = mono_mb_get_label (mb);
3782 /* d = delegates [i]; */
3783 mono_mb_emit_ldloc (mb, local_delegates);
3784 mono_mb_emit_ldloc (mb, local_i);
3785 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3786 mono_mb_emit_stloc (mb, local_d);
3788 /* res = d.Invoke ( args .. ); */
3789 mono_mb_emit_ldloc (mb, local_d);
3790 for (i = 0; i < sig->param_count; i++)
3791 mono_mb_emit_ldarg (mb, i + 1);
3793 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3796 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3797 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3800 mono_mb_emit_stloc (mb, local_res);
3803 mono_mb_emit_add_to_local (mb, local_i, 1);
3806 mono_mb_emit_ldloc (mb, local_i);
3807 mono_mb_emit_ldloc (mb, local_len);
3808 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3812 mono_mb_emit_ldloc (mb, local_res);
3813 mono_mb_emit_byte (mb, CEE_RET);
3815 mb->skip_visibility = 1;
3816 #endif /* DISABLE_JIT */
3818 info = mono_wrapper_info_create (mb, subtype);
3819 info->d.delegate_invoke.method = method;
3824 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3825 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3826 } else if (callvirt) {
3827 new_key = g_new0 (SignaturePointerPair, 1);
3830 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3834 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3838 /* mono_method_print_code (res); */
3844 * mono_marshal_get_delegate_invoke:
3845 * The returned method invokes all methods in a multicast delegate.
3848 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3850 gboolean callvirt = FALSE;
3851 gboolean static_method_with_first_arg_bound = FALSE;
3852 MonoMethod *target_method = NULL;
3853 MonoMethodSignature *sig;
3855 sig = mono_signature_no_pinvoke (method);
3857 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3859 target_method = del->method;
3862 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3863 static_method_with_first_arg_bound = TRUE;
3864 target_method = del->method;
3867 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3871 MonoMethodSignature *ctor_sig;
3872 MonoMethodSignature *sig;
3875 /* protected by the marshal lock, contains CtorSigPair pointers */
3876 static GSList *strsig_list = NULL;
3878 static MonoMethodSignature *
3879 lookup_string_ctor_signature (MonoMethodSignature *sig)
3881 MonoMethodSignature *callsig;
3885 mono_marshal_lock ();
3887 for (item = strsig_list; item; item = item->next) {
3888 cs = (CtorSigPair *)item->data;
3889 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3890 * because it is lock-free.
3892 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3897 mono_marshal_unlock ();
3901 static MonoMethodSignature *
3902 add_string_ctor_signature (MonoMethod *method)
3904 MonoMethodSignature *callsig;
3907 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3908 callsig->ret = &mono_defaults.string_class->byval_arg;
3909 cs = g_new (CtorSigPair, 1);
3911 cs->ctor_sig = mono_method_signature (method);
3913 mono_marshal_lock ();
3914 strsig_list = g_slist_prepend (strsig_list, cs);
3915 mono_marshal_unlock ();
3920 * mono_marshal_get_string_ctor_signature:
3922 * Return the modified signature used by string ctors (they return the newly created
3925 MonoMethodSignature*
3926 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3928 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3930 sig = add_string_ctor_signature (method);
3936 get_runtime_invoke_type (MonoType *t, gboolean ret)
3939 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3941 /* Can't share this with 'I' as that needs another indirection */
3942 return &mono_defaults.int_class->this_arg;
3945 if (MONO_TYPE_IS_REFERENCE (t))
3946 return &mono_defaults.object_class->byval_arg;
3949 /* The result needs to be boxed */
3954 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3957 return &mono_defaults.sbyte_class->byval_arg;
3959 return &mono_defaults.int16_class->byval_arg;
3961 return &mono_defaults.int32_class->byval_arg;
3964 return &mono_defaults.int64_class->byval_arg;
3965 case MONO_TYPE_BOOLEAN:
3966 return &mono_defaults.byte_class->byval_arg;
3967 case MONO_TYPE_CHAR:
3968 return &mono_defaults.uint16_class->byval_arg;
3970 return &mono_defaults.int_class->byval_arg;
3971 case MONO_TYPE_VALUETYPE:
3972 if (t->data.klass->enumtype) {
3973 t = mono_class_enum_basetype (t->data.klass);
3983 * mono_marshal_get_runtime_invoke_sig:
3985 * Return a common signature used for sharing runtime invoke wrappers.
3987 static MonoMethodSignature*
3988 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3990 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3993 res->generic_param_count = 0;
3994 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3995 for (i = 0; i < res->param_count; ++i)
3996 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
4002 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4004 /* Can't share wrappers which return a vtype since it needs to be boxed */
4005 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))
4008 return mono_metadata_signature_equal (sig1, sig2);
4016 * Emit the call to the wrapper method from a runtime invoke wrapper.
4019 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
4020 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4022 gboolean virtual_, gboolean need_direct_wrapper)
4024 static MonoString *string_dummy = NULL;
4026 int *tmp_nullable_locals;
4027 gboolean void_ret = FALSE;
4028 gboolean string_ctor = method && method->string_ctor;
4031 g_assert (sig->hasthis);
4032 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4037 /* to make it work with our special string constructors */
4038 if (!string_dummy) {
4039 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
4040 string_dummy = mono_string_new_wrapper ("dummy");
4043 if (mono_gc_is_moving ()) {
4044 mono_mb_emit_ptr (mb, &string_dummy);
4045 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4047 mono_mb_emit_ptr (mb, string_dummy);
4050 mono_mb_emit_ldarg (mb, 0);
4054 tmp_nullable_locals = g_new0 (int, sig->param_count);
4056 for (i = 0; i < sig->param_count; i++) {
4057 MonoType *t = sig->params [i];
4060 mono_mb_emit_ldarg (mb, 1);
4062 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4063 mono_mb_emit_byte (mb, CEE_ADD);
4067 mono_mb_emit_byte (mb, CEE_LDIND_I);
4068 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4069 * So to make this work we unbox it to a local variablee and push a reference to that.
4071 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4072 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4074 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4075 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4076 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4081 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4082 type = sig->params [i]->type;
4086 case MONO_TYPE_BOOLEAN:
4090 case MONO_TYPE_CHAR:
4099 mono_mb_emit_byte (mb, CEE_LDIND_I);
4100 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4102 case MONO_TYPE_STRING:
4103 case MONO_TYPE_CLASS:
4104 case MONO_TYPE_ARRAY:
4106 case MONO_TYPE_SZARRAY:
4107 case MONO_TYPE_OBJECT:
4108 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4110 case MONO_TYPE_GENERICINST:
4111 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4112 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4117 case MONO_TYPE_VALUETYPE:
4118 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4119 type = mono_class_enum_basetype (t->data.klass)->type;
4122 mono_mb_emit_byte (mb, CEE_LDIND_I);
4123 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4124 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4125 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4126 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4128 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4132 g_assert_not_reached ();
4137 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4138 } else if (need_direct_wrapper) {
4139 mono_mb_emit_op (mb, CEE_CALL, method);
4141 mono_mb_emit_ldarg (mb, 3);
4142 mono_mb_emit_calli (mb, callsig);
4145 if (sig->ret->byref) {
4147 g_assert_not_reached ();
4150 switch (sig->ret->type) {
4151 case MONO_TYPE_VOID:
4155 case MONO_TYPE_BOOLEAN:
4156 case MONO_TYPE_CHAR:
4169 case MONO_TYPE_VALUETYPE:
4170 case MONO_TYPE_TYPEDBYREF:
4171 case MONO_TYPE_GENERICINST:
4172 /* box value types */
4173 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4175 case MONO_TYPE_STRING:
4176 case MONO_TYPE_CLASS:
4177 case MONO_TYPE_ARRAY:
4178 case MONO_TYPE_SZARRAY:
4179 case MONO_TYPE_OBJECT:
4183 /* The result is an IntPtr */
4184 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4187 g_assert_not_reached ();
4191 mono_mb_emit_stloc (mb, loc_res);
4193 /* Convert back nullable-byref arguments */
4194 for (i = 0; i < sig->param_count; i++) {
4195 MonoType *t = sig->params [i];
4198 * Box the result and put it back into the array, the caller will have
4199 * to obtain it from there.
4201 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4202 mono_mb_emit_ldarg (mb, 1);
4203 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4204 mono_mb_emit_byte (mb, CEE_ADD);
4206 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4207 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4209 mono_mb_emit_byte (mb, CEE_STIND_REF);
4213 g_free (tmp_nullable_locals);
4217 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
4218 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4219 gboolean virtual_, gboolean need_direct_wrapper)
4222 MonoExceptionClause *clause;
4223 int loc_res, loc_exc;
4225 /* The wrapper looks like this:
4231 * } catch (Exception e) {
4239 /* allocate local 0 (object) tmp */
4240 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4241 /* allocate local 1 (object) exc */
4242 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4244 /* *exc is assumed to be initialized to NULL by the caller */
4246 mono_mb_emit_byte (mb, CEE_LDARG_2);
4247 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4252 labels [1] = mono_mb_get_label (mb);
4253 emit_thread_force_interrupt_checkpoint (mb);
4254 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4256 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4258 /* Add a try clause around the call */
4259 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
4260 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4261 clause->data.catch_class = mono_defaults.exception_class;
4262 clause->try_offset = labels [1];
4263 clause->try_len = mono_mb_get_label (mb) - labels [1];
4265 clause->handler_offset = mono_mb_get_label (mb);
4268 mono_mb_emit_stloc (mb, loc_exc);
4269 mono_mb_emit_byte (mb, CEE_LDARG_2);
4270 mono_mb_emit_ldloc (mb, loc_exc);
4271 mono_mb_emit_byte (mb, CEE_STIND_REF);
4273 mono_mb_emit_branch (mb, CEE_LEAVE);
4275 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4277 mono_mb_set_clauses (mb, 1, clause);
4279 mono_mb_patch_branch (mb, labels [2]);
4280 mono_mb_emit_ldloc (mb, loc_res);
4281 mono_mb_emit_byte (mb, CEE_RET);
4286 mono_mb_patch_branch (mb, labels [0]);
4287 emit_thread_force_interrupt_checkpoint (mb);
4288 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4290 mono_mb_emit_ldloc (mb, 0);
4291 mono_mb_emit_byte (mb, CEE_RET);
4296 * mono_marshal_get_runtime_invoke:
4297 * Generates IL code for the runtime invoke function:
4299 * <code>MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)</code>
4301 * We also catch exceptions if \p exc is not NULL.
4302 * If \p virtual is TRUE, then \p method is invoked virtually on \p this. This is useful since
4303 * it means that the compiled code for \p method does not have to be looked up
4304 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4305 * its \p method argument.
4308 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4310 MonoMethodSignature *sig, *csig, *callsig;
4311 MonoMethodBuilder *mb;
4312 GHashTable *cache = NULL;
4313 MonoClass *target_klass;
4314 MonoMethod *res = NULL;
4315 static MonoMethodSignature *cctor_signature = NULL;
4316 static MonoMethodSignature *finalize_signature = NULL;
4318 const char *param_names [16];
4319 gboolean need_direct_wrapper = FALSE;
4324 if (!cctor_signature) {
4325 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4326 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4328 if (!finalize_signature) {
4329 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4330 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4331 finalize_signature->hasthis = 1;
4335 need_direct_wrapper = TRUE;
4338 * Use a separate cache indexed by methods to speed things up and to avoid the
4339 * boundless mempool growth caused by the signature_dup stuff below.
4342 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4344 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4346 res = mono_marshal_find_in_cache (cache, method);
4350 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4351 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4353 * Array Get/Set/Address methods. The JIT implements them using inline code
4354 * so we need to create an invoke wrapper which calls the method directly.
4356 need_direct_wrapper = TRUE;
4359 if (method->string_ctor) {
4360 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4362 callsig = add_string_ctor_signature (method);
4363 /* Can't share this as we push a string as this */
4364 need_direct_wrapper = TRUE;
4366 if (method_is_dynamic (method))
4367 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4369 callsig = mono_method_signature (method);
4372 sig = mono_method_signature (method);
4374 target_klass = get_wrapper_target_class (method->klass->image);
4376 /* Try to share wrappers for non-corlib methods with simple signatures */
4377 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4378 callsig = cctor_signature;
4379 target_klass = mono_defaults.object_class;
4380 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4381 callsig = finalize_signature;
4382 target_klass = mono_defaults.object_class;
4385 if (need_direct_wrapper) {
4386 /* Already searched at the start */
4388 MonoMethodSignature *tmp_sig;
4390 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4391 GHashTable **cache_table = NULL;
4393 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4394 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4396 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4398 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4399 (GCompareFunc)runtime_invoke_signature_equal);
4401 /* from mono_marshal_find_in_cache */
4402 mono_marshal_lock ();
4403 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4404 mono_marshal_unlock ();
4411 /* Make a copy of the signature from the image mempool */
4413 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4417 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4419 csig->ret = &mono_defaults.object_class->byval_arg;
4420 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4421 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4423 csig->params [0] = &mono_defaults.object_class->byval_arg;
4424 csig->params [1] = &mono_defaults.int_class->byval_arg;
4425 csig->params [2] = &mono_defaults.int_class->byval_arg;
4426 csig->params [3] = &mono_defaults.int_class->byval_arg;
4429 /* This is called from runtime code so it has to be cdecl */
4430 csig->call_convention = MONO_CALL_C;
4433 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4434 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4438 param_names [0] = "this";
4439 param_names [1] = "params";
4440 param_names [2] = "exc";
4441 param_names [3] = "method";
4442 mono_mb_set_param_names (mb, param_names);
4444 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4447 if (need_direct_wrapper) {
4449 mb->skip_visibility = 1;
4451 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4452 info->d.runtime_invoke.method = method;
4453 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4455 /* taken from mono_mb_create_and_cache */
4456 mono_marshal_lock ();
4457 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4458 mono_marshal_unlock ();
4460 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4461 info->d.runtime_invoke.sig = callsig;
4463 /* Somebody may have created it before us */
4466 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4468 mono_marshal_lock ();
4469 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4471 GHashTable *direct_cache;
4473 g_hash_table_insert (cache, callsig, res);
4474 /* Can't insert it into wrapper_hash since the key is a signature */
4475 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4477 g_hash_table_insert (direct_cache, method, res);
4479 mono_free_method (newm);
4481 mono_marshal_unlock ();
4484 /* end mono_mb_create_and_cache */
4493 * mono_marshal_get_runtime_invoke_dynamic:
4495 * Return a method which can be used to invoke managed methods from native code
4497 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4498 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4499 * ARGS should point to an architecture specific structure containing
4500 * the arguments and space for the return value.
4501 * The other arguments are the same as for runtime_invoke (), except that
4502 * ARGS should contain the this argument too.
4503 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4504 * is only one copy of it, which is useful in full-aot.
4507 mono_marshal_get_runtime_invoke_dynamic (void)
4509 static MonoMethod *method;
4510 MonoMethodSignature *csig;
4511 MonoExceptionClause *clause;
4512 MonoMethodBuilder *mb;
4520 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4522 csig->ret = &mono_defaults.void_class->byval_arg;
4523 csig->params [0] = &mono_defaults.int_class->byval_arg;
4524 csig->params [1] = &mono_defaults.int_class->byval_arg;
4525 csig->params [2] = &mono_defaults.int_class->byval_arg;
4526 csig->params [3] = &mono_defaults.int_class->byval_arg;
4528 name = g_strdup ("runtime_invoke_dynamic");
4529 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4533 /* allocate local 0 (object) tmp */
4534 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4535 /* allocate local 1 (object) exc */
4536 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4538 /* cond set *exc to null */
4539 mono_mb_emit_byte (mb, CEE_LDARG_1);
4540 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4541 mono_mb_emit_byte (mb, 3);
4542 mono_mb_emit_byte (mb, CEE_LDARG_1);
4543 mono_mb_emit_byte (mb, CEE_LDNULL);
4544 mono_mb_emit_byte (mb, CEE_STIND_REF);
4546 emit_thread_force_interrupt_checkpoint (mb);
4548 mono_mb_emit_byte (mb, CEE_LDARG_0);
4549 mono_mb_emit_byte (mb, CEE_LDARG_2);
4550 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4551 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4553 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4555 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4556 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4557 clause->try_len = mono_mb_get_label (mb);
4560 clause->data.filter_offset = mono_mb_get_label (mb);
4562 mono_mb_emit_byte (mb, CEE_POP);
4563 mono_mb_emit_byte (mb, CEE_LDARG_1);
4564 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4565 mono_mb_emit_byte (mb, CEE_PREFIX1);
4566 mono_mb_emit_byte (mb, CEE_CGT_UN);
4567 mono_mb_emit_byte (mb, CEE_PREFIX1);
4568 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4570 clause->handler_offset = mono_mb_get_label (mb);
4573 /* store exception */
4574 mono_mb_emit_stloc (mb, 1);
4576 mono_mb_emit_byte (mb, CEE_LDARG_1);
4577 mono_mb_emit_ldloc (mb, 1);
4578 mono_mb_emit_byte (mb, CEE_STIND_REF);
4580 mono_mb_emit_byte (mb, CEE_LDNULL);
4581 mono_mb_emit_stloc (mb, 0);
4583 mono_mb_emit_branch (mb, CEE_LEAVE);
4585 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4587 mono_mb_set_clauses (mb, 1, clause);
4590 mono_mb_patch_branch (mb, pos);
4591 //mono_mb_emit_ldloc (mb, 0);
4592 mono_mb_emit_byte (mb, CEE_RET);
4593 #endif /* DISABLE_JIT */
4595 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4597 mono_marshal_lock ();
4598 /* double-checked locking */
4600 method = mono_mb_create (mb, csig, 16, info);
4602 mono_marshal_unlock ();
4610 * mono_marshal_get_runtime_invoke_for_sig:
4612 * Return a runtime invoke wrapper for a given signature.
4615 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4617 MonoMethodSignature *csig, *callsig;
4618 MonoMethodBuilder *mb;
4620 GHashTable *cache = NULL;
4621 GHashTable **cache_table = NULL;
4622 MonoMethod *res = NULL;
4624 const char *param_names [16];
4627 /* A simplified version of mono_marshal_get_runtime_invoke */
4629 image = mono_defaults.corlib;
4631 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4633 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4635 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4636 (GCompareFunc)runtime_invoke_signature_equal);
4638 /* from mono_marshal_find_in_cache */
4639 mono_marshal_lock ();
4640 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4641 mono_marshal_unlock ();
4648 /* Make a copy of the signature from the image mempool */
4649 callsig = mono_metadata_signature_dup_full (image, callsig);
4651 csig = mono_metadata_signature_alloc (image, 4);
4652 csig->ret = &mono_defaults.object_class->byval_arg;
4653 csig->params [0] = &mono_defaults.object_class->byval_arg;
4654 csig->params [1] = &mono_defaults.int_class->byval_arg;
4655 csig->params [2] = &mono_defaults.int_class->byval_arg;
4656 csig->params [3] = &mono_defaults.int_class->byval_arg;
4659 /* This is called from runtime code so it has to be cdecl */
4660 csig->call_convention = MONO_CALL_C;
4663 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4664 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4668 param_names [0] = "this";
4669 param_names [1] = "params";
4670 param_names [2] = "exc";
4671 param_names [3] = "method";
4672 mono_mb_set_param_names (mb, param_names);
4674 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4677 /* taken from mono_mb_create_and_cache */
4678 mono_marshal_lock ();
4679 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4680 mono_marshal_unlock ();
4682 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4683 info->d.runtime_invoke.sig = callsig;
4685 /* Somebody may have created it before us */
4688 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4690 mono_marshal_lock ();
4691 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4694 g_hash_table_insert (cache, callsig, res);
4696 mono_free_method (newm);
4698 mono_marshal_unlock ();
4701 /* end mono_mb_create_and_cache */
4710 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4712 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4713 klass->name_space, klass->name);
4715 mono_mb_emit_exception_marshal_directive (mb, msg);
4720 * mono_marshal_get_icall_wrapper:
4721 * Generates IL code for the icall wrapper. The generated method
4722 * calls the unmanaged code in \p func.
4725 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4727 MonoMethodSignature *csig, *csig2;
4728 MonoMethodBuilder *mb;
4733 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4734 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4737 g_assert (sig->pinvoke);
4739 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4741 mb->method->save_lmf = 1;
4743 /* Add an explicit this argument */
4745 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4747 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4751 mono_mb_emit_byte (mb, CEE_LDARG_0);
4753 for (i = 0; i < sig->param_count; i++)
4754 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4756 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4757 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4758 mono_mb_emit_calli (mb, csig2);
4759 if (check_exceptions)
4760 emit_thread_interrupt_checkpoint (mb);
4761 mono_mb_emit_byte (mb, CEE_RET);
4764 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4766 if (csig->call_convention == MONO_CALL_VARARG)
4767 csig->call_convention = 0;
4769 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4770 info->d.icall.func = (gpointer)func;
4771 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4778 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4779 MonoMarshalSpec *spec,
4780 int conv_arg, MonoType **conv_arg_type,
4781 MarshalAction action)
4784 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4785 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4791 static MonoClass *ICustomMarshaler = NULL;
4792 static MonoMethod *cleanup_native, *cleanup_managed;
4793 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4794 MonoMethod *get_instance = NULL;
4795 MonoMethodBuilder *mb = m->mb;
4796 char *exception_msg = NULL;
4800 if (!ICustomMarshaler) {
4801 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4803 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4804 goto handle_exception;
4807 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4808 g_assert (cleanup_native);
4809 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4810 g_assert (cleanup_managed);
4811 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4812 g_assert (marshal_managed_to_native);
4813 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4814 g_assert (marshal_native_to_managed);
4816 mono_memory_barrier ();
4817 ICustomMarshaler = klass;
4820 if (spec->data.custom_data.image)
4821 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4823 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4824 g_assert (mtype != NULL);
4825 mono_error_assert_ok (&error);
4826 mklass = mono_class_from_mono_type (mtype);
4827 g_assert (mklass != NULL);
4829 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4830 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4832 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4834 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4835 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4836 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4837 (get_sig->params [0]->type != MONO_TYPE_STRING))
4838 get_instance = NULL;
4842 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);
4845 /* Throw exception and emit compensation code if neccesary */
4846 if (exception_msg) {
4848 case MARSHAL_ACTION_CONV_IN:
4849 case MARSHAL_ACTION_CONV_RESULT:
4850 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4851 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4852 mono_mb_emit_byte (mb, CEE_POP);
4854 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4857 case MARSHAL_ACTION_PUSH:
4858 mono_mb_emit_byte (mb, CEE_LDNULL);
4866 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4867 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4870 case MARSHAL_ACTION_CONV_IN:
4872 case MONO_TYPE_CLASS:
4873 case MONO_TYPE_OBJECT:
4874 case MONO_TYPE_STRING:
4875 case MONO_TYPE_ARRAY:
4876 case MONO_TYPE_SZARRAY:
4877 case MONO_TYPE_VALUETYPE:
4881 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4882 g_assert_not_reached ();
4886 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4888 mono_mb_emit_byte (mb, CEE_LDNULL);
4889 mono_mb_emit_stloc (mb, conv_arg);
4891 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4894 /* Minic MS.NET behavior */
4895 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4898 /* Check for null */
4899 mono_mb_emit_ldarg (mb, argnum);
4901 mono_mb_emit_byte (mb, CEE_LDIND_I);
4902 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4904 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4906 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4908 mono_mb_emit_ldarg (mb, argnum);
4910 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4912 if (t->type == MONO_TYPE_VALUETYPE) {
4914 * Since we can't determine the type of the argument, we
4915 * will assume the unmanaged function takes a pointer.
4917 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4919 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4922 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4923 mono_mb_emit_stloc (mb, conv_arg);
4925 mono_mb_patch_branch (mb, pos2);
4928 case MARSHAL_ACTION_CONV_OUT:
4929 /* Check for null */
4930 mono_mb_emit_ldloc (mb, conv_arg);
4931 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4934 mono_mb_emit_ldarg (mb, argnum);
4936 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4938 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4940 mono_mb_emit_ldloc (mb, conv_arg);
4941 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4942 mono_mb_emit_byte (mb, CEE_STIND_REF);
4943 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4944 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4946 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4948 mono_mb_emit_ldloc (mb, conv_arg);
4949 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4951 /* We have nowhere to store the result */
4952 mono_mb_emit_byte (mb, CEE_POP);
4955 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4957 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4959 mono_mb_emit_ldloc (mb, conv_arg);
4961 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4963 mono_mb_patch_branch (mb, pos2);
4966 case MARSHAL_ACTION_PUSH:
4968 mono_mb_emit_ldloc_addr (mb, conv_arg);
4970 mono_mb_emit_ldloc (mb, conv_arg);
4973 case MARSHAL_ACTION_CONV_RESULT:
4974 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4976 mono_mb_emit_stloc (mb, 3);
4978 mono_mb_emit_ldloc (mb, 3);
4979 mono_mb_emit_stloc (mb, loc1);
4981 /* Check for null */
4982 mono_mb_emit_ldloc (mb, 3);
4983 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4985 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4987 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4988 mono_mb_emit_byte (mb, CEE_DUP);
4990 mono_mb_emit_ldloc (mb, 3);
4991 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4992 mono_mb_emit_stloc (mb, 3);
4994 mono_mb_emit_ldloc (mb, loc1);
4995 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4997 mono_mb_patch_branch (mb, pos2);
5000 case MARSHAL_ACTION_MANAGED_CONV_IN:
5001 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5003 mono_mb_emit_byte (mb, CEE_LDNULL);
5004 mono_mb_emit_stloc (mb, conv_arg);
5006 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5009 /* Check for null */
5010 mono_mb_emit_ldarg (mb, argnum);
5012 mono_mb_emit_byte (mb, CEE_LDIND_I);
5013 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5015 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5016 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5018 mono_mb_emit_ldarg (mb, argnum);
5020 mono_mb_emit_byte (mb, CEE_LDIND_I);
5022 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5023 mono_mb_emit_stloc (mb, conv_arg);
5025 mono_mb_patch_branch (mb, pos2);
5028 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5029 g_assert (!t->byref);
5031 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5033 mono_mb_emit_stloc (mb, 3);
5035 mono_mb_emit_ldloc (mb, 3);
5036 mono_mb_emit_stloc (mb, loc1);
5038 /* Check for null */
5039 mono_mb_emit_ldloc (mb, 3);
5040 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5042 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5043 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5044 mono_mb_emit_byte (mb, CEE_DUP);
5046 mono_mb_emit_ldloc (mb, 3);
5047 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5048 mono_mb_emit_stloc (mb, 3);
5050 mono_mb_emit_ldloc (mb, loc1);
5051 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5053 mono_mb_patch_branch (mb, pos2);
5056 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5058 /* Check for null */
5059 mono_mb_emit_ldloc (mb, conv_arg);
5060 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5063 mono_mb_emit_ldarg (mb, argnum);
5065 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5067 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5069 mono_mb_emit_ldloc (mb, conv_arg);
5070 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5071 mono_mb_emit_byte (mb, CEE_STIND_I);
5074 /* Call CleanUpManagedData */
5075 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5077 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5079 mono_mb_emit_ldloc (mb, conv_arg);
5080 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5082 mono_mb_patch_branch (mb, pos2);
5086 g_assert_not_reached ();
5094 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5095 MonoMarshalSpec *spec,
5096 int conv_arg, MonoType **conv_arg_type,
5097 MarshalAction action)
5100 MonoMethodBuilder *mb = m->mb;
5103 case MARSHAL_ACTION_CONV_IN: {
5104 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5106 g_assert (t->type == MONO_TYPE_OBJECT);
5107 g_assert (!t->byref);
5109 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5110 mono_mb_emit_ldarg (mb, argnum);
5111 mono_mb_emit_icon (mb, encoding);
5112 mono_mb_emit_icon (mb, t->attrs);
5113 mono_mb_emit_icall (mb, mono_marshal_asany);
5114 mono_mb_emit_stloc (mb, conv_arg);
5118 case MARSHAL_ACTION_PUSH:
5119 mono_mb_emit_ldloc (mb, conv_arg);
5122 case MARSHAL_ACTION_CONV_OUT: {
5123 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5125 mono_mb_emit_ldarg (mb, argnum);
5126 mono_mb_emit_ldloc (mb, conv_arg);
5127 mono_mb_emit_icon (mb, encoding);
5128 mono_mb_emit_icon (mb, t->attrs);
5129 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5134 g_assert_not_reached ();
5141 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5142 MonoMarshalSpec *spec,
5143 int conv_arg, MonoType **conv_arg_type,
5144 MarshalAction action)
5147 MonoMethodBuilder *mb = m->mb;
5148 MonoClass *klass, *date_time_class;
5151 klass = mono_class_from_mono_type (t);
5153 date_time_class = mono_class_get_date_time_class ();
5156 case MARSHAL_ACTION_CONV_IN:
5157 if (klass == date_time_class) {
5158 /* Convert it to an OLE DATE type */
5159 static MonoMethod *to_oadate;
5162 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5163 g_assert (to_oadate);
5165 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5168 mono_mb_emit_ldarg (mb, argnum);
5169 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5172 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5174 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5176 mono_mb_emit_ldarg_addr (mb, argnum);
5177 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5178 mono_mb_emit_stloc (mb, conv_arg);
5182 mono_mb_patch_branch (mb, pos);
5186 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5189 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5191 /* store the address of the source into local variable 0 */
5193 mono_mb_emit_ldarg (mb, argnum);
5195 mono_mb_emit_ldarg_addr (mb, argnum);
5197 mono_mb_emit_stloc (mb, 0);
5199 /* allocate space for the native struct and
5200 * store the address into local variable 1 (dest) */
5201 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5202 mono_mb_emit_byte (mb, CEE_PREFIX1);
5203 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5204 mono_mb_emit_stloc (mb, conv_arg);
5207 mono_mb_emit_ldloc (mb, 0);
5208 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5211 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5213 mono_mb_emit_ldloc (mb, conv_arg);
5214 mono_mb_emit_stloc (mb, 1);
5216 /* emit valuetype conversion code */
5217 emit_struct_conv (mb, klass, FALSE);
5221 mono_mb_patch_branch (mb, pos);
5224 case MARSHAL_ACTION_PUSH:
5225 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5227 g_assert (!t->byref);
5229 /* Have to change the signature since the vtype is passed byref */
5230 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5232 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5233 mono_mb_emit_ldarg_addr (mb, argnum);
5235 mono_mb_emit_ldloc (mb, conv_arg);
5239 if (klass == date_time_class) {
5241 mono_mb_emit_ldloc_addr (mb, conv_arg);
5243 mono_mb_emit_ldloc (mb, conv_arg);
5247 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5248 mono_mb_emit_ldarg (mb, argnum);
5251 mono_mb_emit_ldloc (mb, conv_arg);
5253 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5254 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5258 case MARSHAL_ACTION_CONV_OUT:
5259 if (klass == date_time_class) {
5260 /* Convert from an OLE DATE type */
5261 static MonoMethod *from_oadate;
5266 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5268 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5269 g_assert (from_oadate);
5271 mono_mb_emit_ldarg (mb, argnum);
5272 mono_mb_emit_ldloc (mb, conv_arg);
5273 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5274 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5279 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5283 /* dst = argument */
5284 mono_mb_emit_ldarg (mb, argnum);
5285 mono_mb_emit_stloc (mb, 1);
5287 mono_mb_emit_ldloc (mb, 1);
5288 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5290 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5291 /* src = tmp_locals [i] */
5292 mono_mb_emit_ldloc (mb, conv_arg);
5293 mono_mb_emit_stloc (mb, 0);
5295 /* emit valuetype conversion code */
5296 emit_struct_conv (mb, klass, TRUE);
5300 emit_struct_free (mb, klass, conv_arg);
5303 mono_mb_patch_branch (mb, pos);
5306 case MARSHAL_ACTION_CONV_RESULT:
5307 if (mono_class_is_explicit_layout (klass) || klass->blittable) {
5308 mono_mb_emit_stloc (mb, 3);
5312 /* load pointer to returned value type */
5313 g_assert (m->vtaddr_var);
5314 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5315 /* store the address of the source into local variable 0 */
5316 mono_mb_emit_stloc (mb, 0);
5318 mono_mb_emit_ldloc_addr (mb, 3);
5319 mono_mb_emit_stloc (mb, 1);
5321 /* emit valuetype conversion code */
5322 emit_struct_conv (mb, klass, TRUE);
5325 case MARSHAL_ACTION_MANAGED_CONV_IN:
5326 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5331 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5333 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5337 mono_mb_emit_ldarg (mb, argnum);
5339 mono_mb_emit_ldarg_addr (mb, argnum);
5340 mono_mb_emit_stloc (mb, 0);
5343 mono_mb_emit_ldloc (mb, 0);
5344 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5347 mono_mb_emit_ldloc_addr (mb, conv_arg);
5348 mono_mb_emit_stloc (mb, 1);
5350 /* emit valuetype conversion code */
5351 emit_struct_conv (mb, klass, TRUE);
5354 mono_mb_patch_branch (mb, pos);
5357 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5358 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5360 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5363 /* Check for null */
5364 mono_mb_emit_ldarg (mb, argnum);
5365 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5368 mono_mb_emit_ldloc_addr (mb, conv_arg);
5369 mono_mb_emit_stloc (mb, 0);
5372 mono_mb_emit_ldarg (mb, argnum);
5373 mono_mb_emit_stloc (mb, 1);
5375 /* emit valuetype conversion code */
5376 emit_struct_conv (mb, klass, FALSE);
5378 mono_mb_patch_branch (mb, pos2);
5381 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5382 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5383 mono_mb_emit_stloc (mb, 3);
5388 /* load pointer to returned value type */
5389 g_assert (m->vtaddr_var);
5390 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5392 /* store the address of the source into local variable 0 */
5393 mono_mb_emit_stloc (mb, 0);
5394 /* allocate space for the native struct and
5395 * store the address into dst_ptr */
5396 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5397 m->retobj_class = klass;
5398 g_assert (m->retobj_var);
5399 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5400 mono_mb_emit_byte (mb, CEE_CONV_I);
5401 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5402 mono_mb_emit_stloc (mb, 1);
5403 mono_mb_emit_ldloc (mb, 1);
5404 mono_mb_emit_stloc (mb, m->retobj_var);
5406 /* emit valuetype conversion code */
5407 emit_struct_conv (mb, klass, FALSE);
5411 g_assert_not_reached ();
5418 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5419 MonoMarshalSpec *spec,
5420 int conv_arg, MonoType **conv_arg_type,
5421 MarshalAction action)
5425 case MARSHAL_ACTION_CONV_IN:
5426 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5428 case MARSHAL_ACTION_MANAGED_CONV_IN:
5429 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5433 MonoMethodBuilder *mb = m->mb;
5434 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5435 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5439 case MARSHAL_ACTION_CONV_IN:
5440 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5441 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5444 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5447 mono_mb_emit_ldarg (mb, argnum);
5448 mono_mb_emit_byte (mb, CEE_LDIND_I);
5450 mono_mb_emit_ldarg (mb, argnum);
5453 if (conv == MONO_MARSHAL_CONV_INVALID) {
5454 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5455 mono_mb_emit_exception_marshal_directive (mb, msg);
5457 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5459 mono_mb_emit_stloc (mb, conv_arg);
5463 case MARSHAL_ACTION_CONV_OUT:
5464 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5465 if (conv == MONO_MARSHAL_CONV_INVALID) {
5466 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5467 mono_mb_emit_exception_marshal_directive (mb, msg);
5471 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5472 static MonoMethod *m;
5475 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5480 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5481 mono_mb_emit_exception_marshal_directive (mb, msg);
5486 * Have to allocate a new string with the same length as the original, and
5487 * copy the contents of the buffer pointed to by CONV_ARG into it.
5489 g_assert (t->byref);
5490 mono_mb_emit_ldarg (mb, argnum);
5491 mono_mb_emit_ldloc (mb, conv_arg);
5492 mono_mb_emit_ldarg (mb, argnum);
5493 mono_mb_emit_byte (mb, CEE_LDIND_I);
5494 mono_mb_emit_managed_call (mb, m, NULL);
5495 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5496 mono_mb_emit_byte (mb, CEE_STIND_REF);
5497 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5499 mono_mb_emit_ldarg (mb, argnum);
5500 mono_mb_emit_ldloc (mb, conv_arg);
5501 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5502 mono_mb_emit_byte (mb, stind_op);
5507 mono_mb_emit_ldloc (mb, conv_arg);
5508 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5509 mono_mb_emit_icall (mb, mono_free_bstr);
5511 mono_mb_emit_icall (mb, mono_marshal_free);
5515 case MARSHAL_ACTION_PUSH:
5516 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5517 mono_mb_emit_ldloc_addr (mb, conv_arg);
5519 mono_mb_emit_ldloc (mb, conv_arg);
5522 case MARSHAL_ACTION_CONV_RESULT:
5523 mono_mb_emit_stloc (mb, 0);
5525 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5526 if (conv == MONO_MARSHAL_CONV_INVALID) {
5527 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5528 mono_mb_emit_exception_marshal_directive (mb, msg);
5532 mono_mb_emit_ldloc (mb, 0);
5533 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5534 mono_mb_emit_stloc (mb, 3);
5536 /* free the string */
5537 mono_mb_emit_ldloc (mb, 0);
5538 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5539 mono_mb_emit_icall (mb, mono_free_bstr);
5541 mono_mb_emit_icall (mb, mono_marshal_free);
5544 case MARSHAL_ACTION_MANAGED_CONV_IN:
5545 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5547 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5550 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5554 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5555 if (conv == MONO_MARSHAL_CONV_INVALID) {
5556 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5557 mono_mb_emit_exception_marshal_directive (mb, msg);
5561 mono_mb_emit_ldarg (mb, argnum);
5563 mono_mb_emit_byte (mb, CEE_LDIND_I);
5564 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5565 mono_mb_emit_stloc (mb, conv_arg);
5568 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5572 mono_mb_emit_ldarg (mb, argnum);
5573 mono_mb_emit_ldloc (mb, conv_arg);
5574 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5575 mono_mb_emit_byte (mb, stind_op);
5580 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5581 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5582 /* We need to make a copy so the caller is able to free it */
5583 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5585 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5586 mono_mb_emit_stloc (mb, 3);
5590 g_assert_not_reached ();
5598 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5599 MonoMarshalSpec *spec, int conv_arg,
5600 MonoType **conv_arg_type, MarshalAction action)
5603 if (action == MARSHAL_ACTION_CONV_IN)
5604 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5606 MonoMethodBuilder *mb = m->mb;
5609 case MARSHAL_ACTION_CONV_IN: {
5610 MonoType *intptr_type;
5611 int dar_release_slot, pos;
5613 intptr_type = &mono_defaults.int_class->byval_arg;
5614 conv_arg = mono_mb_add_local (mb, intptr_type);
5615 *conv_arg_type = intptr_type;
5617 if (!sh_dangerous_add_ref)
5618 init_safe_handle ();
5620 mono_mb_emit_ldarg (mb, argnum);
5621 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5622 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5624 mono_mb_patch_branch (mb, pos);
5627 * My tests in show that ref SafeHandles are not really
5628 * passed as ref objects. Instead a NULL is passed as the
5631 mono_mb_emit_icon (mb, 0);
5632 mono_mb_emit_stloc (mb, conv_arg);
5636 /* Create local to hold the ref parameter to DangerousAddRef */
5637 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5639 /* set release = false; */
5640 mono_mb_emit_icon (mb, 0);
5641 mono_mb_emit_stloc (mb, dar_release_slot);
5643 /* safehandle.DangerousAddRef (ref release) */
5644 mono_mb_emit_ldarg (mb, argnum);
5645 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5646 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5648 /* Pull the handle field from SafeHandle */
5649 mono_mb_emit_ldarg (mb, argnum);
5650 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5651 mono_mb_emit_byte (mb, CEE_LDIND_I);
5652 mono_mb_emit_stloc (mb, conv_arg);
5657 case MARSHAL_ACTION_PUSH:
5659 mono_mb_emit_ldloc_addr (mb, conv_arg);
5661 mono_mb_emit_ldloc (mb, conv_arg);
5664 case MARSHAL_ACTION_CONV_OUT: {
5665 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5666 int dar_release_slot = conv_arg + 1;
5669 if (!sh_dangerous_release)
5670 init_safe_handle ();
5676 * My tests indicate that ref SafeHandles parameters are not actually
5677 * passed by ref, but instead a new Handle is created regardless of
5678 * whether a change happens in the unmanaged side.
5680 * Also, the Handle is created before calling into unmanaged code,
5681 * but we do not support that mechanism (getting to the original
5682 * handle) and it makes no difference where we create this
5684 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5686 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5689 /* refval = new SafeHandleDerived ()*/
5690 mono_mb_emit_ldarg (mb, argnum);
5691 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5692 mono_mb_emit_byte (mb, CEE_STIND_REF);
5694 /* refval.handle = returned_handle */
5695 mono_mb_emit_ldarg (mb, argnum);
5696 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5697 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5698 mono_mb_emit_ldloc (mb, conv_arg);
5699 mono_mb_emit_byte (mb, CEE_STIND_I);
5701 mono_mb_emit_ldloc (mb, dar_release_slot);
5702 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5703 mono_mb_emit_ldarg (mb, argnum);
5704 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5705 mono_mb_patch_branch (mb, label_next);
5710 case MARSHAL_ACTION_CONV_RESULT: {
5711 MonoMethod *ctor = NULL;
5712 int intptr_handle_slot;
5714 if (mono_class_is_abstract (t->data.klass)) {
5715 mono_mb_emit_byte (mb, CEE_POP);
5716 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5720 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5722 mono_mb_emit_byte (mb, CEE_POP);
5723 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5726 /* Store the IntPtr results into a local */
5727 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5728 mono_mb_emit_stloc (mb, intptr_handle_slot);
5730 /* Create return value */
5731 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5732 mono_mb_emit_stloc (mb, 3);
5734 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5735 mono_mb_emit_ldloc (mb, 3);
5736 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5737 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5738 mono_mb_emit_byte (mb, CEE_STIND_I);
5742 case MARSHAL_ACTION_MANAGED_CONV_IN:
5743 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5746 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5747 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5750 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5751 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5754 printf ("Unhandled case for MarshalAction: %d\n", action);
5762 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5763 MonoMarshalSpec *spec, int conv_arg,
5764 MonoType **conv_arg_type, MarshalAction action)
5767 if (action == MARSHAL_ACTION_CONV_IN)
5768 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5770 MonoMethodBuilder *mb = m->mb;
5773 case MARSHAL_ACTION_CONV_IN: {
5774 MonoType *intptr_type;
5776 intptr_type = &mono_defaults.int_class->byval_arg;
5777 conv_arg = mono_mb_add_local (mb, intptr_type);
5778 *conv_arg_type = intptr_type;
5781 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5782 mono_mb_emit_exception_marshal_directive (mb, msg);
5785 mono_mb_emit_ldarg_addr (mb, argnum);
5786 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5787 mono_mb_emit_byte (mb, CEE_ADD);
5788 mono_mb_emit_byte (mb, CEE_LDIND_I);
5789 mono_mb_emit_stloc (mb, conv_arg);
5793 case MARSHAL_ACTION_PUSH:
5794 mono_mb_emit_ldloc (mb, conv_arg);
5797 case MARSHAL_ACTION_CONV_OUT: {
5798 /* no resource release required */
5802 case MARSHAL_ACTION_CONV_RESULT: {
5803 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5804 mono_mb_emit_exception_marshal_directive (mb, msg);
5808 case MARSHAL_ACTION_MANAGED_CONV_IN:
5809 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5812 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5813 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5816 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5817 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5820 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5828 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5829 MonoMarshalSpec *spec,
5830 int conv_arg, MonoType **conv_arg_type,
5831 MarshalAction action)
5834 if (action == MARSHAL_ACTION_CONV_IN)
5835 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5837 MonoMethodBuilder *mb = m->mb;
5838 MonoClass *klass = mono_class_from_mono_type (t);
5842 case MARSHAL_ACTION_CONV_IN:
5843 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5844 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5846 m->orig_conv_args [argnum] = 0;
5848 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5849 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5850 mono_mb_emit_exception_marshal_directive (mb, msg);
5854 if (klass->delegate) {
5856 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5857 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5858 mono_mb_emit_exception_marshal_directive (mb, msg);
5860 mono_mb_emit_byte (mb, CEE_LDNULL);
5861 mono_mb_emit_stloc (mb, conv_arg);
5863 mono_mb_emit_ldarg (mb, argnum);
5864 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5865 mono_mb_emit_stloc (mb, conv_arg);
5867 } else if (klass == mono_defaults.stringbuilder_class) {
5868 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5869 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5873 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5874 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5875 mono_mb_emit_exception_marshal_directive (mb, msg);
5881 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5884 if (conv == MONO_MARSHAL_CONV_INVALID) {
5885 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5886 mono_mb_emit_exception_marshal_directive (mb, msg);
5890 mono_mb_emit_ldarg (mb, argnum);
5892 mono_mb_emit_byte (mb, CEE_LDIND_I);
5894 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5895 mono_mb_emit_stloc (mb, conv_arg);
5896 } else if (klass->blittable) {
5897 mono_mb_emit_byte (mb, CEE_LDNULL);
5898 mono_mb_emit_stloc (mb, conv_arg);
5900 mono_mb_emit_ldarg (mb, argnum);
5901 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5903 mono_mb_emit_ldarg (mb, argnum);
5904 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5905 mono_mb_emit_stloc (mb, conv_arg);
5907 mono_mb_patch_branch (mb, pos);
5910 mono_mb_emit_byte (mb, CEE_LDNULL);
5911 mono_mb_emit_stloc (mb, conv_arg);
5914 /* we dont need any conversions for out parameters */
5915 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5918 mono_mb_emit_ldarg (mb, argnum);
5919 mono_mb_emit_byte (mb, CEE_LDIND_I);
5922 mono_mb_emit_ldarg (mb, argnum);
5923 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5924 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5927 /* store the address of the source into local variable 0 */
5928 mono_mb_emit_stloc (mb, 0);
5929 mono_mb_emit_ldloc (mb, 0);
5930 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5932 /* allocate space for the native struct and store the address */
5933 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5934 mono_mb_emit_byte (mb, CEE_PREFIX1);
5935 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5936 mono_mb_emit_stloc (mb, conv_arg);
5939 /* Need to store the original buffer so we can free it later */
5940 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5941 mono_mb_emit_ldloc (mb, conv_arg);
5942 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5945 /* set the src_ptr */
5946 mono_mb_emit_ldloc (mb, 0);
5947 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5948 mono_mb_emit_stloc (mb, 0);
5951 mono_mb_emit_ldloc (mb, conv_arg);
5952 mono_mb_emit_stloc (mb, 1);
5954 /* emit valuetype conversion code */
5955 emit_struct_conv (mb, klass, FALSE);
5957 mono_mb_patch_branch (mb, pos);
5961 case MARSHAL_ACTION_CONV_OUT:
5962 if (klass == mono_defaults.stringbuilder_class) {
5964 MonoMarshalNative encoding;
5965 MonoMarshalConv conv;
5967 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5968 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5970 g_assert (encoding != -1);
5973 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5977 mono_mb_emit_ldarg (mb, argnum);
5978 mono_mb_emit_ldloc (mb, conv_arg);
5981 case MONO_NATIVE_LPWSTR:
5982 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5984 case MONO_NATIVE_LPSTR:
5985 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5987 case MONO_NATIVE_UTF8STR:
5988 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5991 g_assert_not_reached ();
5994 mono_mb_emit_byte (mb, CEE_STIND_REF);
5996 mono_mb_emit_ldarg (mb, argnum);
5997 mono_mb_emit_ldloc (mb, conv_arg);
5999 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6003 mono_mb_emit_ldloc (mb, conv_arg);
6004 mono_mb_emit_icall (mb, mono_marshal_free);
6009 if (klass->delegate) {
6011 mono_mb_emit_ldarg (mb, argnum);
6012 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6013 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6014 mono_mb_emit_ldloc (mb, conv_arg);
6015 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6016 mono_mb_emit_byte (mb, CEE_STIND_REF);
6021 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6022 /* allocate a new object */
6023 mono_mb_emit_ldarg (mb, argnum);
6024 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6025 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6026 mono_mb_emit_byte (mb, CEE_STIND_REF);
6029 /* dst = *argument */
6030 mono_mb_emit_ldarg (mb, argnum);
6033 mono_mb_emit_byte (mb, CEE_LDIND_I);
6035 mono_mb_emit_stloc (mb, 1);
6037 mono_mb_emit_ldloc (mb, 1);
6038 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6040 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6041 mono_mb_emit_ldloc (mb, 1);
6042 mono_mb_emit_icon (mb, sizeof (MonoObject));
6043 mono_mb_emit_byte (mb, CEE_ADD);
6044 mono_mb_emit_stloc (mb, 1);
6046 /* src = tmp_locals [i] */
6047 mono_mb_emit_ldloc (mb, conv_arg);
6048 mono_mb_emit_stloc (mb, 0);
6050 /* emit valuetype conversion code */
6051 emit_struct_conv (mb, klass, TRUE);
6053 /* Free the structure returned by the native code */
6054 emit_struct_free (mb, klass, conv_arg);
6056 if (m->orig_conv_args [argnum]) {
6058 * If the native function changed the pointer, then free
6059 * the original structure plus the new pointer.
6061 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6062 mono_mb_emit_ldloc (mb, conv_arg);
6063 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6065 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6066 g_assert (m->orig_conv_args [argnum]);
6068 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6071 mono_mb_emit_ldloc (mb, conv_arg);
6072 mono_mb_emit_icall (mb, mono_marshal_free);
6074 mono_mb_patch_branch (mb, pos2);
6078 /* Free the original structure passed to native code */
6079 emit_struct_free (mb, klass, conv_arg);
6081 mono_mb_patch_branch (mb, pos);
6084 case MARSHAL_ACTION_PUSH:
6086 mono_mb_emit_ldloc_addr (mb, conv_arg);
6088 mono_mb_emit_ldloc (mb, conv_arg);
6091 case MARSHAL_ACTION_CONV_RESULT:
6092 if (klass->delegate) {
6093 g_assert (!t->byref);
6094 mono_mb_emit_stloc (mb, 0);
6095 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6096 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6097 mono_mb_emit_ldloc (mb, 0);
6098 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6099 mono_mb_emit_stloc (mb, 3);
6100 } else if (klass == mono_defaults.stringbuilder_class) {
6102 char *msg = g_strdup_printf ("Return marshalling of stringbuilders is not implemented.");
6103 mono_mb_emit_exception_marshal_directive (mb, msg);
6106 mono_mb_emit_stloc (mb, 0);
6108 /* Make a copy since emit_conv modifies local 0 */
6109 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6110 mono_mb_emit_ldloc (mb, 0);
6111 mono_mb_emit_stloc (mb, loc);
6113 mono_mb_emit_byte (mb, CEE_LDNULL);
6114 mono_mb_emit_stloc (mb, 3);
6116 mono_mb_emit_ldloc (mb, 0);
6117 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6119 /* allocate result object */
6121 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6122 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6123 mono_mb_emit_stloc (mb, 3);
6127 mono_mb_emit_ldloc (mb, 3);
6128 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6129 mono_mb_emit_stloc (mb, 1);
6131 /* emit conversion code */
6132 emit_struct_conv (mb, klass, TRUE);
6134 emit_struct_free (mb, klass, loc);
6136 /* Free the pointer allocated by unmanaged code */
6137 mono_mb_emit_ldloc (mb, loc);
6138 mono_mb_emit_icall (mb, mono_marshal_free);
6139 mono_mb_patch_branch (mb, pos);
6143 case MARSHAL_ACTION_MANAGED_CONV_IN:
6144 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6146 if (klass->delegate) {
6147 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6148 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6149 mono_mb_emit_ldarg (mb, argnum);
6151 mono_mb_emit_byte (mb, CEE_LDIND_I);
6152 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6153 mono_mb_emit_stloc (mb, conv_arg);
6157 if (klass == mono_defaults.stringbuilder_class) {
6158 MonoMarshalNative encoding;
6160 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6163 g_assert (encoding == MONO_NATIVE_LPSTR || encoding == MONO_NATIVE_UTF8STR);
6165 g_assert (!t->byref);
6166 g_assert (encoding != -1);
6168 mono_mb_emit_ldarg (mb, argnum);
6169 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6170 mono_mb_emit_stloc (mb, conv_arg);
6174 /* The class can not have an automatic layout */
6175 if (mono_class_is_auto_layout (klass)) {
6176 mono_mb_emit_auto_layout_exception (mb, klass);
6180 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6181 mono_mb_emit_byte (mb, CEE_LDNULL);
6182 mono_mb_emit_stloc (mb, conv_arg);
6187 mono_mb_emit_ldarg (mb, argnum);
6191 /* Check for NULL and raise an exception */
6192 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6194 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6196 mono_mb_patch_branch (mb, pos2);
6197 mono_mb_emit_ldarg (mb, argnum);
6198 mono_mb_emit_byte (mb, CEE_LDIND_I);
6201 mono_mb_emit_stloc (mb, 0);
6203 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6204 mono_mb_emit_stloc (mb, conv_arg);
6206 mono_mb_emit_ldloc (mb, 0);
6207 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6209 /* Create and set dst */
6210 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6211 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6212 mono_mb_emit_stloc (mb, conv_arg);
6213 mono_mb_emit_ldloc (mb, conv_arg);
6214 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6215 mono_mb_emit_stloc (mb, 1);
6217 /* emit valuetype conversion code */
6218 emit_struct_conv (mb, klass, TRUE);
6220 mono_mb_patch_branch (mb, pos);
6223 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6224 if (klass->delegate) {
6227 mono_mb_emit_ldarg (mb, argnum);
6228 mono_mb_emit_ldloc (mb, conv_arg);
6229 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
6230 mono_mb_emit_byte (mb, stind_op);
6236 /* Check for null */
6237 mono_mb_emit_ldloc (mb, conv_arg);
6238 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6239 mono_mb_emit_ldarg (mb, argnum);
6240 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6241 mono_mb_emit_byte (mb, CEE_STIND_REF);
6242 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6244 mono_mb_patch_branch (mb, pos);
6247 mono_mb_emit_ldloc (mb, conv_arg);
6248 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6249 mono_mb_emit_stloc (mb, 0);
6251 /* Allocate and set dest */
6252 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6253 mono_mb_emit_byte (mb, CEE_CONV_I);
6254 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6255 mono_mb_emit_stloc (mb, 1);
6257 /* Update argument pointer */
6258 mono_mb_emit_ldarg (mb, argnum);
6259 mono_mb_emit_ldloc (mb, 1);
6260 mono_mb_emit_byte (mb, CEE_STIND_I);
6262 /* emit valuetype conversion code */
6263 emit_struct_conv (mb, klass, FALSE);
6265 mono_mb_patch_branch (mb, pos2);
6266 } else if (klass == mono_defaults.stringbuilder_class) {
6267 // FIXME: What to do here ?
6269 /* byval [Out] marshalling */
6271 /* FIXME: Handle null */
6274 mono_mb_emit_ldloc (mb, conv_arg);
6275 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6276 mono_mb_emit_stloc (mb, 0);
6279 mono_mb_emit_ldarg (mb, argnum);
6280 mono_mb_emit_stloc (mb, 1);
6282 /* emit valuetype conversion code */
6283 emit_struct_conv (mb, klass, FALSE);
6287 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6288 if (klass->delegate) {
6289 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6290 mono_mb_emit_stloc (mb, 3);
6294 /* The class can not have an automatic layout */
6295 if (mono_class_is_auto_layout (klass)) {
6296 mono_mb_emit_auto_layout_exception (mb, klass);
6300 mono_mb_emit_stloc (mb, 0);
6301 /* Check for null */
6302 mono_mb_emit_ldloc (mb, 0);
6303 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6304 mono_mb_emit_byte (mb, CEE_LDNULL);
6305 mono_mb_emit_stloc (mb, 3);
6306 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6308 mono_mb_patch_branch (mb, pos);
6311 mono_mb_emit_ldloc (mb, 0);
6312 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6313 mono_mb_emit_stloc (mb, 0);
6315 /* Allocate and set dest */
6316 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6317 mono_mb_emit_byte (mb, CEE_CONV_I);
6318 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6319 mono_mb_emit_byte (mb, CEE_DUP);
6320 mono_mb_emit_stloc (mb, 1);
6321 mono_mb_emit_stloc (mb, 3);
6323 emit_struct_conv (mb, klass, FALSE);
6325 mono_mb_patch_branch (mb, pos2);
6329 g_assert_not_reached ();
6340 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6341 MonoMarshalSpec *spec,
6342 int conv_arg, MonoType **conv_arg_type,
6343 MarshalAction action)
6345 MonoMethodBuilder *mb = m->mb;
6346 static MonoMethod *get_object_for_native_variant = NULL;
6347 static MonoMethod *get_native_variant_for_object = NULL;
6349 if (!get_object_for_native_variant)
6350 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6351 g_assert (get_object_for_native_variant);
6353 if (!get_native_variant_for_object)
6354 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6355 g_assert (get_native_variant_for_object);
6358 case MARSHAL_ACTION_CONV_IN: {
6359 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6362 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6364 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6366 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6369 mono_mb_emit_ldarg (mb, argnum);
6371 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6372 mono_mb_emit_ldloc_addr (mb, conv_arg);
6373 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6377 case MARSHAL_ACTION_CONV_OUT: {
6378 static MonoMethod *variant_clear = NULL;
6381 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6382 g_assert (variant_clear);
6385 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6386 mono_mb_emit_ldarg (mb, argnum);
6387 mono_mb_emit_ldloc_addr (mb, conv_arg);
6388 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6389 mono_mb_emit_byte (mb, CEE_STIND_REF);
6392 mono_mb_emit_ldloc_addr (mb, conv_arg);
6393 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6397 case MARSHAL_ACTION_PUSH:
6399 mono_mb_emit_ldloc_addr (mb, conv_arg);
6401 mono_mb_emit_ldloc (mb, conv_arg);
6404 case MARSHAL_ACTION_CONV_RESULT: {
6405 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6406 mono_mb_emit_exception_marshal_directive (mb, msg);
6410 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6411 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6414 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6416 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6418 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6422 mono_mb_emit_ldarg (mb, argnum);
6424 mono_mb_emit_ldarg_addr (mb, argnum);
6425 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6426 mono_mb_emit_stloc (mb, conv_arg);
6430 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6431 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6432 mono_mb_emit_ldloc (mb, conv_arg);
6433 mono_mb_emit_ldarg (mb, argnum);
6434 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6439 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6440 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6441 mono_mb_emit_exception_marshal_directive (mb, msg);
6446 g_assert_not_reached ();
6452 #endif /* DISABLE_COM */
6453 #endif /* DISABLE_JIT */
6456 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6458 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6459 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6461 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6463 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6475 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6476 MonoMarshalSpec *spec,
6477 int conv_arg, MonoType **conv_arg_type,
6478 MarshalAction action)
6482 case MARSHAL_ACTION_CONV_IN:
6483 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6485 case MARSHAL_ACTION_MANAGED_CONV_IN:
6486 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6490 MonoMethodBuilder *mb = m->mb;
6491 MonoClass *klass = mono_class_from_mono_type (t);
6492 gboolean need_convert, need_free;
6493 MonoMarshalNative encoding;
6495 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6498 case MARSHAL_ACTION_CONV_IN:
6499 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6500 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6502 if (klass->element_class->blittable) {
6503 mono_mb_emit_ldarg (mb, argnum);
6505 mono_mb_emit_byte (mb, CEE_LDIND_I);
6506 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6507 mono_mb_emit_stloc (mb, conv_arg);
6510 guint32 label1, label2, label3;
6511 int index_var, src_var, dest_ptr, esize;
6512 MonoMarshalConv conv;
6513 gboolean is_string = FALSE;
6515 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6517 eklass = klass->element_class;
6519 if (eklass == mono_defaults.string_class) {
6521 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6523 else if (eklass == mono_defaults.stringbuilder_class) {
6525 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6528 conv = MONO_MARSHAL_CONV_INVALID;
6530 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6531 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6532 mono_mb_emit_exception_marshal_directive (mb, msg);
6536 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6537 mono_mb_emit_ldarg (mb, argnum);
6539 mono_mb_emit_byte (mb, CEE_LDIND_I);
6540 mono_mb_emit_stloc (mb, src_var);
6543 mono_mb_emit_ldloc (mb, src_var);
6544 mono_mb_emit_stloc (mb, conv_arg);
6545 mono_mb_emit_ldloc (mb, src_var);
6546 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6549 esize = sizeof (gpointer);
6550 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6551 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6553 esize = mono_class_native_size (eklass, NULL);
6555 /* allocate space for the native struct and store the address */
6556 mono_mb_emit_icon (mb, esize);
6557 mono_mb_emit_ldloc (mb, src_var);
6558 mono_mb_emit_byte (mb, CEE_LDLEN);
6560 if (eklass == mono_defaults.string_class) {
6561 /* Make the array bigger for the terminating null */
6562 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6563 mono_mb_emit_byte (mb, CEE_ADD);
6565 mono_mb_emit_byte (mb, CEE_MUL);
6566 mono_mb_emit_byte (mb, CEE_PREFIX1);
6567 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6568 mono_mb_emit_stloc (mb, conv_arg);
6570 mono_mb_emit_ldloc (mb, conv_arg);
6571 mono_mb_emit_stloc (mb, dest_ptr);
6573 /* Emit marshalling loop */
6574 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6575 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6576 mono_mb_emit_stloc (mb, index_var);
6577 label2 = mono_mb_get_label (mb);
6578 mono_mb_emit_ldloc (mb, index_var);
6579 mono_mb_emit_ldloc (mb, src_var);
6580 mono_mb_emit_byte (mb, CEE_LDLEN);
6581 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6583 /* Emit marshalling code */
6587 mono_mb_emit_ldloc (mb, dest_ptr);
6588 mono_mb_emit_ldloc (mb, src_var);
6589 mono_mb_emit_ldloc (mb, index_var);
6590 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6591 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6592 mono_mb_emit_byte (mb, stind_op);
6594 /* set the src_ptr */
6595 mono_mb_emit_ldloc (mb, src_var);
6596 mono_mb_emit_ldloc (mb, index_var);
6597 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6598 mono_mb_emit_stloc (mb, 0);
6601 mono_mb_emit_ldloc (mb, dest_ptr);
6602 mono_mb_emit_stloc (mb, 1);
6604 /* emit valuetype conversion code */
6605 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6608 mono_mb_emit_add_to_local (mb, index_var, 1);
6609 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6611 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6613 mono_mb_patch_branch (mb, label3);
6615 if (eklass == mono_defaults.string_class) {
6616 /* Null terminate */
6617 mono_mb_emit_ldloc (mb, dest_ptr);
6618 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6619 mono_mb_emit_byte (mb, CEE_STIND_REF);
6622 mono_mb_patch_branch (mb, label1);
6627 case MARSHAL_ACTION_CONV_OUT:
6628 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6629 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);
6630 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6633 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6634 int param_num = spec->data.array_data.param_num;
6635 MonoType *param_type;
6637 param_type = m->sig->params [param_num];
6639 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6640 char *msg = g_strdup ("Not implemented.");
6641 mono_mb_emit_exception_marshal_directive (mb, msg);
6646 mono_mb_emit_ldarg (mb, argnum);
6648 /* Create the managed array */
6649 mono_mb_emit_ldarg (mb, param_num);
6650 if (m->sig->params [param_num]->byref)
6651 // FIXME: Support other types
6652 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6653 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6654 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6655 /* Store into argument */
6656 mono_mb_emit_byte (mb, CEE_STIND_REF);
6660 if (need_convert || need_free) {
6661 /* FIXME: Optimize blittable case */
6663 guint32 label1, label2, label3;
6664 int index_var, src_ptr, loc, esize;
6666 eklass = klass->element_class;
6667 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6668 esize = sizeof (gpointer);
6669 else if (eklass == mono_defaults.char_class)
6670 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6672 esize = mono_class_native_size (eklass, NULL);
6673 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6674 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6677 mono_mb_emit_ldarg (mb, argnum);
6679 mono_mb_emit_byte (mb, CEE_LDIND_I);
6680 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6682 mono_mb_emit_ldloc (mb, conv_arg);
6683 mono_mb_emit_stloc (mb, src_ptr);
6685 /* Emit marshalling loop */
6686 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6687 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6688 mono_mb_emit_stloc (mb, index_var);
6689 label2 = mono_mb_get_label (mb);
6690 mono_mb_emit_ldloc (mb, index_var);
6691 mono_mb_emit_ldarg (mb, argnum);
6693 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6694 mono_mb_emit_byte (mb, CEE_LDLEN);
6695 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6697 /* Emit marshalling code */
6699 if (eklass == mono_defaults.stringbuilder_class) {
6700 gboolean need_free2;
6701 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6703 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6706 mono_mb_emit_ldarg (mb, argnum);
6708 mono_mb_emit_byte (mb, CEE_LDIND_I);
6709 mono_mb_emit_ldloc (mb, index_var);
6710 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6713 mono_mb_emit_ldloc (mb, src_ptr);
6714 mono_mb_emit_byte (mb, CEE_LDIND_I);
6716 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6720 mono_mb_emit_ldloc (mb, src_ptr);
6721 mono_mb_emit_byte (mb, CEE_LDIND_I);
6723 mono_mb_emit_icall (mb, mono_marshal_free);
6726 else if (eklass == mono_defaults.string_class) {
6729 mono_mb_emit_ldloc (mb, src_ptr);
6730 mono_mb_emit_byte (mb, CEE_LDIND_I);
6732 mono_mb_emit_icall (mb, mono_marshal_free);
6737 /* set the src_ptr */
6738 mono_mb_emit_ldloc (mb, src_ptr);
6739 mono_mb_emit_stloc (mb, 0);
6742 mono_mb_emit_ldarg (mb, argnum);
6744 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6745 mono_mb_emit_ldloc (mb, index_var);
6746 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6747 mono_mb_emit_stloc (mb, 1);
6749 /* emit valuetype conversion code */
6750 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6754 mono_mb_emit_ldloc (mb, src_ptr);
6755 mono_mb_emit_stloc (mb, loc);
6756 mono_mb_emit_ldloc (mb, loc);
6758 emit_struct_free (mb, eklass, loc);
6762 mono_mb_emit_add_to_local (mb, index_var, 1);
6763 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6765 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6767 mono_mb_patch_branch (mb, label1);
6768 mono_mb_patch_branch (mb, label3);
6771 if (klass->element_class->blittable) {
6772 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6774 mono_mb_emit_ldarg (mb, argnum);
6776 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6777 mono_mb_emit_ldloc (mb, conv_arg);
6778 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6783 case MARSHAL_ACTION_PUSH:
6785 mono_mb_emit_ldloc_addr (mb, conv_arg);
6787 mono_mb_emit_ldloc (mb, conv_arg);
6790 case MARSHAL_ACTION_CONV_RESULT:
6791 /* fixme: we need conversions here */
6792 mono_mb_emit_stloc (mb, 3);
6795 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6797 guint32 label1, label2, label3;
6798 int index_var, src_ptr, esize, param_num, num_elem;
6799 MonoMarshalConv conv;
6800 gboolean is_string = FALSE;
6802 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6803 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6806 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6807 mono_mb_emit_exception_marshal_directive (mb, msg);
6811 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6812 mono_mb_emit_exception_marshal_directive (mb, msg);
6815 if (spec->native != MONO_NATIVE_LPARRAY) {
6816 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6817 mono_mb_emit_exception_marshal_directive (mb, msg);
6821 /* FIXME: t is from the method which is wrapped, not the delegate type */
6822 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6824 param_num = spec->data.array_data.param_num;
6825 num_elem = spec->data.array_data.num_elem;
6826 if (spec->data.array_data.elem_mult == 0)
6827 /* param_num is not specified */
6830 if (param_num == -1) {
6831 if (num_elem <= 0) {
6832 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6833 mono_mb_emit_exception_marshal_directive (mb, msg);
6838 /* FIXME: Optimize blittable case */
6840 eklass = klass->element_class;
6841 if (eklass == mono_defaults.string_class) {
6843 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6845 else if (eklass == mono_defaults.stringbuilder_class) {
6847 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6850 conv = MONO_MARSHAL_CONV_INVALID;
6852 mono_marshal_load_type_info (eklass);
6855 esize = sizeof (gpointer);
6857 esize = mono_class_native_size (eklass, NULL);
6858 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6860 mono_mb_emit_byte (mb, CEE_LDNULL);
6861 mono_mb_emit_stloc (mb, conv_arg);
6863 /* Check param index */
6864 if (param_num != -1) {
6865 if (param_num >= m->sig->param_count) {
6866 char *msg = g_strdup ("Array size control parameter index is out of range.");
6867 mono_mb_emit_exception_marshal_directive (mb, msg);
6870 switch (m->sig->params [param_num]->type) {
6883 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6884 mono_mb_emit_exception_marshal_directive (mb, msg);
6891 mono_mb_emit_ldarg (mb, argnum);
6892 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6894 mono_mb_emit_ldarg (mb, argnum);
6895 mono_mb_emit_stloc (mb, src_ptr);
6897 /* Create managed array */
6899 * The LPArray marshalling spec says that sometimes param_num starts
6900 * from 1, sometimes it starts from 0. But MS seems to allways start
6904 if (param_num == -1) {
6905 mono_mb_emit_icon (mb, num_elem);
6907 mono_mb_emit_ldarg (mb, param_num);
6909 mono_mb_emit_icon (mb, num_elem);
6910 mono_mb_emit_byte (mb, CEE_ADD);
6912 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6915 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6916 mono_mb_emit_stloc (mb, conv_arg);
6918 if (eklass->blittable) {
6919 mono_mb_emit_ldloc (mb, conv_arg);
6920 mono_mb_emit_byte (mb, CEE_CONV_I);
6921 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6922 mono_mb_emit_byte (mb, CEE_ADD);
6923 mono_mb_emit_ldarg (mb, argnum);
6924 mono_mb_emit_ldloc (mb, conv_arg);
6925 mono_mb_emit_byte (mb, CEE_LDLEN);
6926 mono_mb_emit_icon (mb, esize);
6927 mono_mb_emit_byte (mb, CEE_MUL);
6928 mono_mb_emit_byte (mb, CEE_PREFIX1);
6929 mono_mb_emit_byte (mb, CEE_CPBLK);
6930 mono_mb_patch_branch (mb, label1);
6934 /* Emit marshalling loop */
6935 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6936 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6937 mono_mb_emit_stloc (mb, index_var);
6938 label2 = mono_mb_get_label (mb);
6939 mono_mb_emit_ldloc (mb, index_var);
6940 mono_mb_emit_ldloc (mb, conv_arg);
6941 mono_mb_emit_byte (mb, CEE_LDLEN);
6942 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6944 /* Emit marshalling code */
6946 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6948 mono_mb_emit_ldloc (mb, conv_arg);
6949 mono_mb_emit_ldloc (mb, index_var);
6951 mono_mb_emit_ldloc (mb, src_ptr);
6952 mono_mb_emit_byte (mb, CEE_LDIND_I);
6954 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6955 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6958 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6959 mono_mb_emit_exception_marshal_directive (mb, msg);
6963 mono_mb_emit_add_to_local (mb, index_var, 1);
6964 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6966 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6968 mono_mb_patch_branch (mb, label1);
6969 mono_mb_patch_branch (mb, label3);
6973 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6975 guint32 label1, label2, label3;
6976 int index_var, dest_ptr, esize, param_num, num_elem;
6977 MonoMarshalConv conv;
6978 gboolean is_string = FALSE;
6981 /* Already handled in CONV_IN */
6984 /* These are already checked in CONV_IN */
6985 g_assert (!t->byref);
6986 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6987 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6989 param_num = spec->data.array_data.param_num;
6990 num_elem = spec->data.array_data.num_elem;
6992 if (spec->data.array_data.elem_mult == 0)
6993 /* param_num is not specified */
6996 if (param_num == -1) {
6997 if (num_elem <= 0) {
6998 g_assert_not_reached ();
7002 /* FIXME: Optimize blittable case */
7004 eklass = klass->element_class;
7005 if (eklass == mono_defaults.string_class) {
7007 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7009 else if (eklass == mono_defaults.stringbuilder_class) {
7011 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7014 conv = MONO_MARSHAL_CONV_INVALID;
7016 mono_marshal_load_type_info (eklass);
7019 esize = sizeof (gpointer);
7021 esize = mono_class_native_size (eklass, NULL);
7023 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7026 mono_mb_emit_ldloc (mb, conv_arg);
7027 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7029 mono_mb_emit_ldarg (mb, argnum);
7030 mono_mb_emit_stloc (mb, dest_ptr);
7032 if (eklass->blittable) {
7034 mono_mb_emit_ldarg (mb, argnum);
7036 mono_mb_emit_ldloc (mb, conv_arg);
7037 mono_mb_emit_byte (mb, CEE_CONV_I);
7038 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
7039 mono_mb_emit_byte (mb, CEE_ADD);
7041 mono_mb_emit_ldloc (mb, conv_arg);
7042 mono_mb_emit_byte (mb, CEE_LDLEN);
7043 mono_mb_emit_icon (mb, esize);
7044 mono_mb_emit_byte (mb, CEE_MUL);
7045 mono_mb_emit_byte (mb, CEE_PREFIX1);
7046 mono_mb_emit_byte (mb, CEE_CPBLK);
7050 /* Emit marshalling loop */
7051 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7052 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7053 mono_mb_emit_stloc (mb, index_var);
7054 label2 = mono_mb_get_label (mb);
7055 mono_mb_emit_ldloc (mb, index_var);
7056 mono_mb_emit_ldloc (mb, conv_arg);
7057 mono_mb_emit_byte (mb, CEE_LDLEN);
7058 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7060 /* Emit marshalling code */
7063 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7066 mono_mb_emit_ldloc (mb, dest_ptr);
7069 mono_mb_emit_ldloc (mb, conv_arg);
7070 mono_mb_emit_ldloc (mb, index_var);
7072 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7074 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7075 mono_mb_emit_byte (mb, stind_op);
7078 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7079 mono_mb_emit_exception_marshal_directive (mb, msg);
7083 mono_mb_emit_add_to_local (mb, index_var, 1);
7084 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7086 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7088 mono_mb_patch_branch (mb, label1);
7089 mono_mb_patch_branch (mb, label3);
7093 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7095 guint32 label1, label2, label3;
7096 int index_var, src, dest, esize;
7097 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
7098 gboolean is_string = FALSE;
7100 g_assert (!t->byref);
7102 eklass = klass->element_class;
7104 mono_marshal_load_type_info (eklass);
7106 if (eklass == mono_defaults.string_class) {
7108 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7111 g_assert_not_reached ();
7115 esize = sizeof (gpointer);
7116 else if (eklass == mono_defaults.char_class)
7117 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7119 esize = mono_class_native_size (eklass, NULL);
7121 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7122 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7124 mono_mb_emit_stloc (mb, src);
7125 mono_mb_emit_ldloc (mb, src);
7126 mono_mb_emit_stloc (mb, 3);
7128 /* Check for null */
7129 mono_mb_emit_ldloc (mb, src);
7130 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7132 /* Allocate native array */
7133 mono_mb_emit_icon (mb, esize);
7134 mono_mb_emit_ldloc (mb, src);
7135 mono_mb_emit_byte (mb, CEE_LDLEN);
7137 if (eklass == mono_defaults.string_class) {
7138 /* Make the array bigger for the terminating null */
7139 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7140 mono_mb_emit_byte (mb, CEE_ADD);
7142 mono_mb_emit_byte (mb, CEE_MUL);
7143 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
7144 mono_mb_emit_stloc (mb, dest);
7145 mono_mb_emit_ldloc (mb, dest);
7146 mono_mb_emit_stloc (mb, 3);
7148 /* Emit marshalling loop */
7149 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7150 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7151 mono_mb_emit_stloc (mb, index_var);
7152 label2 = mono_mb_get_label (mb);
7153 mono_mb_emit_ldloc (mb, index_var);
7154 mono_mb_emit_ldloc (mb, src);
7155 mono_mb_emit_byte (mb, CEE_LDLEN);
7156 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7158 /* Emit marshalling code */
7161 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7164 mono_mb_emit_ldloc (mb, dest);
7167 mono_mb_emit_ldloc (mb, src);
7168 mono_mb_emit_ldloc (mb, index_var);
7170 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7172 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7173 mono_mb_emit_byte (mb, stind_op);
7176 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7177 mono_mb_emit_exception_marshal_directive (mb, msg);
7181 mono_mb_emit_add_to_local (mb, index_var, 1);
7182 mono_mb_emit_add_to_local (mb, dest, esize);
7184 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7186 mono_mb_patch_branch (mb, label3);
7187 mono_mb_patch_branch (mb, label1);
7191 g_assert_not_reached ();
7198 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
7201 return &mono_defaults.int32_class->byval_arg;
7203 switch (spec->native) {
7204 case MONO_NATIVE_I1:
7205 case MONO_NATIVE_U1:
7206 return &mono_defaults.byte_class->byval_arg;
7207 case MONO_NATIVE_VARIANTBOOL:
7208 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
7209 return &mono_defaults.int16_class->byval_arg;
7210 case MONO_NATIVE_BOOLEAN:
7211 return &mono_defaults.int32_class->byval_arg;
7213 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7214 return &mono_defaults.int32_class->byval_arg;
7220 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
7222 MonoClass* conv_arg_class = mono_defaults.int32_class;
7224 switch (spec->native) {
7225 case MONO_NATIVE_I1:
7226 case MONO_NATIVE_U1:
7227 conv_arg_class = mono_defaults.byte_class;
7228 if (ldop) *ldop = CEE_LDIND_I1;
7230 case MONO_NATIVE_VARIANTBOOL:
7231 conv_arg_class = mono_defaults.int16_class;
7232 if (ldop) *ldop = CEE_LDIND_I2;
7234 case MONO_NATIVE_BOOLEAN:
7237 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7240 return conv_arg_class;
7244 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7245 MonoMarshalSpec *spec,
7246 int conv_arg, MonoType **conv_arg_type,
7247 MarshalAction action)
7251 case MARSHAL_ACTION_CONV_IN:
7253 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7255 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7258 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7259 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7261 *conv_arg_type = &conv_arg_class->this_arg;
7263 *conv_arg_type = &conv_arg_class->byval_arg;
7269 MonoMethodBuilder *mb = m->mb;
7272 case MARSHAL_ACTION_CONV_IN: {
7273 MonoType *local_type;
7275 guint8 ldc_op = CEE_LDC_I4_1;
7277 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7279 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7281 *conv_arg_type = local_type;
7282 conv_arg = mono_mb_add_local (mb, local_type);
7284 mono_mb_emit_ldarg (mb, argnum);
7286 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7287 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7288 mono_mb_emit_byte (mb, ldc_op);
7289 mono_mb_emit_stloc (mb, conv_arg);
7290 mono_mb_patch_branch (mb, label_false);
7295 case MARSHAL_ACTION_CONV_OUT:
7297 int label_false, label_end;
7301 mono_mb_emit_ldarg (mb, argnum);
7302 mono_mb_emit_ldloc (mb, conv_arg);
7304 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7305 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7307 label_end = mono_mb_emit_branch (mb, CEE_BR);
7308 mono_mb_patch_branch (mb, label_false);
7309 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7310 mono_mb_patch_branch (mb, label_end);
7312 mono_mb_emit_byte (mb, CEE_STIND_I1);
7316 case MARSHAL_ACTION_PUSH:
7318 mono_mb_emit_ldloc_addr (mb, conv_arg);
7320 mono_mb_emit_ldloc (mb, conv_arg);
7322 mono_mb_emit_ldarg (mb, argnum);
7325 case MARSHAL_ACTION_CONV_RESULT:
7326 /* maybe we need to make sure that it fits within 8 bits */
7327 mono_mb_emit_stloc (mb, 3);
7330 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7331 MonoClass* conv_arg_class = mono_defaults.int32_class;
7332 guint8 ldop = CEE_LDIND_I4;
7333 int label_null, label_false;
7335 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7336 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7339 *conv_arg_type = &conv_arg_class->this_arg;
7341 *conv_arg_type = &conv_arg_class->byval_arg;
7344 mono_mb_emit_ldarg (mb, argnum);
7348 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7349 mono_mb_emit_ldarg (mb, argnum);
7350 mono_mb_emit_byte (mb, ldop);
7354 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7355 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7356 mono_mb_emit_stloc (mb, conv_arg);
7357 mono_mb_patch_branch (mb, label_false);
7360 mono_mb_patch_branch (mb, label_null);
7364 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7365 guint8 stop = CEE_STIND_I4;
7366 guint8 ldc_op = CEE_LDC_I4_1;
7367 int label_null,label_false, label_end;;
7372 switch (spec->native) {
7373 case MONO_NATIVE_I1:
7374 case MONO_NATIVE_U1:
7375 stop = CEE_STIND_I1;
7377 case MONO_NATIVE_VARIANTBOOL:
7378 stop = CEE_STIND_I2;
7379 ldc_op = CEE_LDC_I4_M1;
7387 mono_mb_emit_ldarg (mb, argnum);
7388 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7390 mono_mb_emit_ldarg (mb, argnum);
7391 mono_mb_emit_ldloc (mb, conv_arg);
7393 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7394 mono_mb_emit_byte (mb, ldc_op);
7395 label_end = mono_mb_emit_branch (mb, CEE_BR);
7397 mono_mb_patch_branch (mb, label_false);
7398 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7399 mono_mb_patch_branch (mb, label_end);
7401 mono_mb_emit_byte (mb, stop);
7402 mono_mb_patch_branch (mb, label_null);
7407 g_assert_not_reached ();
7414 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7415 MonoMarshalSpec *spec, int conv_arg,
7416 MonoType **conv_arg_type, MarshalAction action)
7419 MonoMethodBuilder *mb = m->mb;
7422 case MARSHAL_ACTION_CONV_IN:
7423 /* MS seems to allow this in some cases, ie. bxc #158 */
7425 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7426 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7427 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7432 case MARSHAL_ACTION_PUSH:
7433 mono_mb_emit_ldarg (mb, argnum);
7436 case MARSHAL_ACTION_CONV_RESULT:
7437 /* no conversions necessary */
7438 mono_mb_emit_stloc (mb, 3);
7449 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7450 MonoMarshalSpec *spec, int conv_arg,
7451 MonoType **conv_arg_type, MarshalAction action)
7454 MonoMethodBuilder *mb = m->mb;
7457 case MARSHAL_ACTION_PUSH:
7458 /* fixme: dont know how to marshal that. We cant simply
7459 * convert it to a one byte UTF8 character, because an
7460 * unicode character may need more that one byte in UTF8 */
7461 mono_mb_emit_ldarg (mb, argnum);
7464 case MARSHAL_ACTION_CONV_RESULT:
7465 /* fixme: we need conversions here */
7466 mono_mb_emit_stloc (mb, 3);
7477 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7478 MonoMarshalSpec *spec, int conv_arg,
7479 MonoType **conv_arg_type, MarshalAction action)
7482 MonoMethodBuilder *mb = m->mb;
7485 case MARSHAL_ACTION_PUSH:
7486 mono_mb_emit_ldarg (mb, argnum);
7489 case MARSHAL_ACTION_CONV_RESULT:
7490 /* no conversions necessary */
7491 mono_mb_emit_stloc (mb, 3);
7502 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7503 MonoMarshalSpec *spec, int conv_arg,
7504 MonoType **conv_arg_type, MarshalAction action)
7506 /* Ensure that we have marshalling info for this param */
7507 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7509 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7510 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7512 if (spec && spec->native == MONO_NATIVE_ASANY)
7513 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7516 case MONO_TYPE_VALUETYPE:
7517 if (t->data.klass == mono_defaults.handleref_class)
7518 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7520 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7521 case MONO_TYPE_STRING:
7522 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7523 case MONO_TYPE_CLASS:
7524 case MONO_TYPE_OBJECT:
7525 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7526 if (spec && spec->native == MONO_NATIVE_STRUCT)
7527 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7530 #if !defined(DISABLE_COM)
7531 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7532 spec->native == MONO_NATIVE_IDISPATCH ||
7533 spec->native == MONO_NATIVE_INTERFACE))
7534 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7535 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7536 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7537 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7538 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7541 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7542 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7543 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7545 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7546 case MONO_TYPE_ARRAY:
7547 case MONO_TYPE_SZARRAY:
7548 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7549 case MONO_TYPE_BOOLEAN:
7550 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7552 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7553 case MONO_TYPE_CHAR:
7554 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7567 case MONO_TYPE_FNPTR:
7568 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7569 case MONO_TYPE_GENERICINST:
7570 if (mono_type_generic_inst_is_valuetype (t))
7571 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7573 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7579 /* How the arguments of an icall should be wrapped */
7581 /* Don't wrap at all, pass the argument as is */
7582 ICALL_HANDLES_WRAP_NONE,
7583 /* Wrap the argument in an object handle, pass the handle to the icall */
7584 ICALL_HANDLES_WRAP_OBJ,
7585 /* Wrap the argument in an object handle, pass the handle to the icall,
7586 write the value out from the handle when the icall returns */
7587 ICALL_HANDLES_WRAP_OBJ_INOUT,
7588 /* Wrap the argument (a valuetype reference) in a handle to pin its enclosing object,
7589 but pass the raw reference to the icall */
7590 ICALL_HANDLES_WRAP_VALUETYPE_REF,
7594 IcallHandlesWrap wrap;
7595 /* if wrap is NONE or OBJ or VALUETYPE_REF, this is not meaningful.
7596 if wrap is OBJ_INOUT it's the local var that holds the MonoObjectHandle.
7599 } IcallHandlesLocal;
7602 * Describes how to wrap the given parameter.
7605 static IcallHandlesWrap
7606 signature_param_uses_handles (MonoMethodSignature *sig, int param)
7608 if (MONO_TYPE_IS_REFERENCE (sig->params [param])) {
7609 return mono_signature_param_is_out (sig, param) ? ICALL_HANDLES_WRAP_OBJ_INOUT : ICALL_HANDLES_WRAP_OBJ;
7610 } else if (mono_type_is_byref (sig->params [param]))
7611 return ICALL_HANDLES_WRAP_VALUETYPE_REF;
7613 return ICALL_HANDLES_WRAP_NONE;
7619 * mono_marshal_emit_native_wrapper:
7620 * \param image the image to use for looking up custom marshallers
7621 * \param sig The signature of the native function
7622 * \param piinfo Marshalling information
7623 * \param mspecs Marshalling information
7624 * \param aot whenever the created method will be compiled by the AOT compiler
7625 * \param method if non-NULL, the pinvoke method to call
7626 * \param check_exceptions Whenever to check for pending exceptions after the native call
7627 * \param func_param the function to call is passed as a boxed IntPtr as the first parameter
7629 * generates IL code for the pinvoke wrapper, the generated code calls \p func .
7632 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)
7634 EmitMarshalContext m;
7635 MonoMethodSignature *csig;
7637 int i, argnum, *tmp_locals;
7638 int type, param_shift = 0;
7639 int coop_gc_stack_dummy, coop_gc_var;
7641 memset (&m, 0, sizeof (m));
7646 /* we copy the signature, so that we can set pinvoke to 0 */
7648 /* The function address is passed as the first argument */
7649 g_assert (!sig->hasthis);
7652 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7660 /* we allocate local for use with emit_struct_conv() */
7661 /* allocate local 0 (pointer) src_ptr */
7662 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7663 /* allocate local 1 (pointer) dst_ptr */
7664 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7665 /* allocate local 2 (boolean) delete_old */
7666 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7668 /* delete_old = FALSE */
7669 mono_mb_emit_icon (mb, 0);
7670 mono_mb_emit_stloc (mb, 2);
7672 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7673 /* allocate local 3 to store the return value */
7674 mono_mb_add_local (mb, sig->ret);
7677 if (mono_threads_is_coop_enabled ()) {
7678 /* local 4, dummy local used to get a stack address for suspend funcs */
7679 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7680 /* local 5, the local to be used when calling the suspend funcs */
7681 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7685 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7687 * ret = method (...);
7689 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7696 if (MONO_TYPE_ISSTRUCT (sig->ret))
7697 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7699 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7700 /* Return type custom marshaling */
7702 * Since we can't determine the return type of the unmanaged function,
7703 * we assume it returns a pointer, and pass that pointer to
7704 * MarshalNativeToManaged.
7706 csig->ret = &mono_defaults.int_class->byval_arg;
7709 /* we first do all conversions */
7710 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7711 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7713 for (i = 0; i < sig->param_count; i ++) {
7714 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7717 // In coop mode need to register blocking state during native call
7718 if (mono_threads_is_coop_enabled ()) {
7719 // Perform an extra, early lookup of the function address, so any exceptions
7720 // potentially resulting from the lookup occur before entering blocking mode.
7721 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7722 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7723 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7724 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7727 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7728 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7729 mono_mb_emit_stloc (mb, coop_gc_var);
7732 /* push all arguments */
7735 mono_mb_emit_byte (mb, CEE_LDARG_0);
7737 for (i = 0; i < sig->param_count; i++) {
7738 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7741 /* call the native method */
7743 mono_mb_emit_byte (mb, CEE_LDARG_0);
7744 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7745 mono_mb_emit_byte (mb, CEE_LDIND_I);
7746 mono_mb_emit_calli (mb, csig);
7747 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7749 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7751 g_assert_not_reached ();
7755 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7756 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7757 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7758 mono_mb_emit_calli (mb, csig);
7760 mono_mb_emit_native_call (mb, csig, func);
7764 /* Set LastError if needed */
7765 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7768 static MonoMethodSignature *get_last_error_sig = NULL;
7769 if (!get_last_error_sig) {
7770 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7771 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7772 get_last_error_sig->pinvoke = 1;
7776 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7777 * clobber its value.
7779 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7780 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7782 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7783 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7784 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7787 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7791 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7792 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7793 mono_class_init (klass);
7794 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
7795 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7796 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7797 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7798 mono_mb_emit_stloc (mb, m.vtaddr_var);
7802 /* Unblock before converting the result, since that can involve calls into the runtime */
7803 if (mono_threads_is_coop_enabled ()) {
7804 mono_mb_emit_ldloc (mb, coop_gc_var);
7805 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7806 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7809 /* convert the result */
7810 if (!sig->ret->byref) {
7811 MonoMarshalSpec *spec = mspecs [0];
7812 type = sig->ret->type;
7814 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7815 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7819 case MONO_TYPE_VOID:
7821 case MONO_TYPE_VALUETYPE:
7822 klass = sig->ret->data.klass;
7823 if (klass->enumtype) {
7824 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7827 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7841 case MONO_TYPE_FNPTR:
7842 case MONO_TYPE_STRING:
7843 case MONO_TYPE_CLASS:
7844 case MONO_TYPE_OBJECT:
7845 case MONO_TYPE_BOOLEAN:
7846 case MONO_TYPE_ARRAY:
7847 case MONO_TYPE_SZARRAY:
7848 case MONO_TYPE_CHAR:
7850 case MONO_TYPE_GENERICINST:
7851 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7853 case MONO_TYPE_TYPEDBYREF:
7855 g_warning ("return type 0x%02x unknown", sig->ret->type);
7856 g_assert_not_reached ();
7860 mono_mb_emit_stloc (mb, 3);
7864 * Need to call this after converting the result since MONO_VTADDR needs
7865 * to be adjacent to the call instruction.
7867 if (check_exceptions)
7868 emit_thread_interrupt_checkpoint (mb);
7870 /* we need to convert byref arguments back and free string arrays */
7871 for (i = 0; i < sig->param_count; i++) {
7872 MonoType *t = sig->params [i];
7873 MonoMarshalSpec *spec = mspecs [i + 1];
7875 argnum = i + param_shift;
7877 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7878 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7883 case MONO_TYPE_STRING:
7884 case MONO_TYPE_VALUETYPE:
7885 case MONO_TYPE_CLASS:
7886 case MONO_TYPE_OBJECT:
7887 case MONO_TYPE_SZARRAY:
7888 case MONO_TYPE_BOOLEAN:
7889 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7896 if (!MONO_TYPE_IS_VOID(sig->ret))
7897 mono_mb_emit_ldloc (mb, 3);
7899 mono_mb_emit_byte (mb, CEE_RET);
7901 #endif /* DISABLE_JIT */
7904 * mono_marshal_get_native_wrapper:
7905 * \param method The \c MonoMethod to wrap.
7906 * \param check_exceptions Whenever to check for pending exceptions
7908 * Generates IL code for the pinvoke wrapper. The generated method
7909 * calls the unmanaged code in \c piinfo->addr.
7912 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7914 MonoMethodSignature *sig, *csig;
7915 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7916 MonoMethodBuilder *mb;
7917 MonoMarshalSpec **mspecs;
7920 gboolean pinvoke = FALSE;
7923 const char *exc_class = "MissingMethodException";
7924 const char *exc_arg = NULL;
7927 g_assert (method != NULL);
7928 g_assert (mono_method_signature (method)->pinvoke);
7930 GHashTable **cache_ptr;
7933 if (check_exceptions)
7934 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7936 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7938 if (check_exceptions)
7939 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7941 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7944 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7946 if ((res = mono_marshal_find_in_cache (cache, method)))
7949 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7950 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7954 return mono_cominterop_get_native_wrapper (method);
7956 g_assert_not_reached ();
7960 sig = mono_method_signature (method);
7962 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7963 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7966 if (!piinfo->addr) {
7968 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7969 exc_arg = "Method contains unsupported native code";
7971 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7973 piinfo->addr = mono_lookup_internal_call (method);
7977 /* hack - redirect certain string constructors to CreateString */
7978 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7979 g_assert (!pinvoke);
7980 g_assert (method->string_ctor);
7981 g_assert (sig->hasthis);
7983 /* CreateString returns a value */
7984 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7985 csig->ret = &mono_defaults.string_class->byval_arg;
7989 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7990 if (!strcmp ("CreateString", res->name) &&
7991 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7994 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7995 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7997 /* create a wrapper to preserve .ctor in stack trace */
7998 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8001 mono_mb_emit_byte (mb, CEE_LDARG_0);
8002 for (i = 1; i <= csig->param_count; i++)
8003 mono_mb_emit_ldarg (mb, i);
8004 mono_mb_emit_managed_call (mb, res, NULL);
8005 mono_mb_emit_byte (mb, CEE_RET);
8008 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
8009 info->d.string_ctor.method = method;
8011 /* use native_wrapper_cache because internal calls are looked up there */
8012 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
8013 csig->param_count + 1, info, NULL);
8020 /* exception will be thrown */
8021 piinfo->addr = NULL;
8022 g_warning ("cannot find CreateString for .ctor");
8025 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8027 mb->method->save_lmf = 1;
8030 * In AOT mode and embedding scenarios, it is possible that the icall is not
8031 * registered in the runtime doing the AOT compilation.
8033 if (!piinfo->addr && !aot) {
8035 mono_mb_emit_exception (mb, exc_class, exc_arg);
8037 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8038 info->d.managed_to_native.method = method;
8040 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8042 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
8043 csig->param_count + 16, info, NULL);
8049 /* internal calls: we simply push all arguments and call the method (no conversions) */
8050 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8052 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
8054 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8056 //printf ("%s\n", mono_method_full_name (method, 1));
8058 /* hack - string constructors returns a value */
8059 if (method->string_ctor)
8060 csig->ret = &mono_defaults.string_class->byval_arg;
8064 MonoClass *handle_stack_mark_class;
8065 MonoClass *error_class;
8066 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
8067 MonoMethodSignature *call_sig = csig;
8068 gboolean uses_handles = FALSE;
8069 gboolean save_handles_to_locals = FALSE;
8070 IcallHandlesLocal *handles_locals = NULL;
8072 (void) mono_lookup_internal_call_full (method, &uses_handles);
8074 /* If it uses handles and MonoError, it had better check exceptions */
8075 g_assert (!uses_handles || check_exceptions);
8078 MonoMethodSignature *ret;
8080 /* Add a MonoError argument and figure out which args need to be wrapped in handles */
8081 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
8082 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
8084 ret->param_count = csig->param_count + 1;
8085 ret->ret = csig->ret;
8087 handles_locals = g_new0 (IcallHandlesLocal, csig->param_count);
8088 for (int i = 0; i < csig->param_count; ++i) {
8089 IcallHandlesWrap w = signature_param_uses_handles (csig, i);
8090 handles_locals [i].wrap = w;
8092 case ICALL_HANDLES_WRAP_OBJ:
8093 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8094 ret->params [i] = mono_class_get_byref_type (mono_class_from_mono_type(csig->params[i]));
8095 if (w == ICALL_HANDLES_WRAP_OBJ_INOUT)
8096 save_handles_to_locals = TRUE;
8098 case ICALL_HANDLES_WRAP_NONE:
8099 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8100 ret->params [i] = csig->params [i];
8103 g_assert_not_reached ();
8106 /* Add MonoError* param */
8107 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
8108 ret->pinvoke = csig->pinvoke;
8114 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
8115 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
8117 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
8118 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
8119 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
8121 if (save_handles_to_locals) {
8122 /* add a local var to hold the handles for each out arg */
8123 for (int i = 0; i < sig->param_count; ++i) {
8124 int j = i + sig->hasthis;
8125 switch (handles_locals[j].wrap) {
8126 case ICALL_HANDLES_WRAP_NONE:
8127 case ICALL_HANDLES_WRAP_OBJ:
8128 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8129 handles_locals [j].handle = -1;
8131 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8132 handles_locals [j].handle = mono_mb_add_local (mb, sig->params [i]);
8135 g_assert_not_reached ();
8145 * Add a null check since public icalls can be called with 'call' which
8146 * does no such check.
8148 mono_mb_emit_byte (mb, CEE_LDARG_0);
8149 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8150 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8151 mono_mb_patch_branch (mb, pos);
8155 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8156 mono_mb_emit_ldloc_addr (mb, error_var);
8157 mono_mb_emit_icall (mb, mono_icall_start);
8158 mono_mb_emit_stloc (mb, thread_info_var);
8161 mono_mb_emit_byte (mb, CEE_LDARG_0);
8162 /* TODO support adding wrappers to non-static struct methods */
8163 g_assert (!mono_class_is_valuetype(mono_method_get_class (method)));
8164 mono_mb_emit_icall (mb, mono_icall_handle_new);
8166 for (i = 0; i < sig->param_count; i++) {
8167 /* load each argument. references into the managed heap get wrapped in handles */
8168 int j = i + sig->hasthis;
8169 switch (handles_locals[j].wrap) {
8170 case ICALL_HANDLES_WRAP_NONE:
8171 mono_mb_emit_ldarg (mb, j);
8173 case ICALL_HANDLES_WRAP_OBJ:
8174 /* argI = mono_handle_new (argI_raw) */
8175 mono_mb_emit_ldarg (mb, j);
8176 mono_mb_emit_icall (mb, mono_icall_handle_new);
8178 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8179 /* handleI = argI = mono_handle_new (NULL) */
8180 mono_mb_emit_byte (mb, CEE_LDNULL);
8181 mono_mb_emit_icall (mb, mono_icall_handle_new);
8183 mono_mb_emit_byte (mb, CEE_DUP);
8185 mono_mb_emit_stloc (mb, handles_locals[j].handle);
8187 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8188 /* (void) mono_handle_new (argI); argI */
8189 mono_mb_emit_ldarg (mb, j);
8190 mono_mb_emit_byte (mb, CEE_DUP);
8191 mono_mb_emit_icall (mb, mono_icall_handle_new_interior);
8192 mono_mb_emit_byte (mb, CEE_POP);
8194 fprintf (stderr, " Method %s.%s.%s has byref valuetype argument %d\n", method->klass->name_space, method->klass->name, method->name, i);
8198 g_assert_not_reached ();
8201 mono_mb_emit_ldloc_addr (mb, error_var);
8204 mono_mb_emit_byte (mb, CEE_LDARG_0);
8205 for (i = 0; i < sig->param_count; i++)
8206 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8210 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8211 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8212 mono_mb_emit_calli (mb, call_sig);
8214 g_assert (piinfo->addr);
8215 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
8219 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
8220 // if (ret != NULL_HANDLE) {
8221 // ret = MONO_HANDLE_RAW(ret)
8223 mono_mb_emit_byte (mb, CEE_DUP);
8224 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8225 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8226 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8227 mono_mb_patch_branch (mb, pos);
8229 if (save_handles_to_locals) {
8230 for (i = 0; i < sig->param_count; i++) {
8231 int j = i + sig->hasthis;
8232 switch (handles_locals [j].wrap) {
8233 case ICALL_HANDLES_WRAP_NONE:
8234 case ICALL_HANDLES_WRAP_OBJ:
8235 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8237 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8238 /* *argI_raw = MONO_HANDLE_RAW (handleI) */
8241 mono_mb_emit_ldarg (mb, j);
8243 mono_mb_emit_ldloc (mb, handles_locals [j].handle);
8244 /* MONO_HANDLE_RAW(handleI) */
8245 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8246 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8247 /* *argI_raw = MONO_HANDLE_RAW(handleI) */
8248 mono_mb_emit_byte (mb, CEE_STIND_REF);
8251 g_assert_not_reached ();
8255 g_free (handles_locals);
8257 mono_mb_emit_ldloc (mb, thread_info_var);
8258 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8259 mono_mb_emit_ldloc_addr (mb, error_var);
8260 mono_mb_emit_icall (mb, mono_icall_end);
8263 if (check_exceptions)
8264 emit_thread_interrupt_checkpoint (mb);
8265 mono_mb_emit_byte (mb, CEE_RET);
8267 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8268 info->d.managed_to_native.method = method;
8270 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
8272 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8281 g_assert (piinfo->addr);
8284 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8285 mono_method_get_marshal_info (method, mspecs);
8287 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
8289 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
8290 info->d.managed_to_native.method = method;
8292 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8294 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8299 for (i = sig->param_count; i >= 0; i--)
8301 mono_metadata_free_marshal_spec (mspecs [i]);
8305 /* mono_method_print_code (res); */
8311 * mono_marshal_get_native_func_wrapper:
8312 * \param image The image to use for memory allocation and for looking up custom marshallers.
8313 * \param sig The signature of the function
8314 * \param func The native function to wrap
8316 * \returns a wrapper method around native functions, similar to the pinvoke
8320 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8321 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8323 MonoMethodSignature *csig;
8325 SignaturePointerPair key, *new_key;
8326 MonoMethodBuilder *mb;
8335 // Generic types are not safe to place in MonoImage caches.
8336 g_assert (!sig->is_inflated);
8338 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
8339 if ((res = mono_marshal_find_in_cache (cache, &key)))
8342 name = g_strdup_printf ("wrapper_native_%p", func);
8343 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8344 mb->method->save_lmf = 1;
8347 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8350 csig = mono_metadata_signature_dup_full (image, sig);
8353 new_key = g_new (SignaturePointerPair,1);
8354 new_key->sig = csig;
8355 new_key->pointer = func;
8357 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
8363 mono_marshal_set_wrapper_info (res, NULL);
8369 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8373 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8375 MonoMethodSignature *sig, *csig;
8376 MonoMethodBuilder *mb;
8381 MonoMethodPInvoke mpiinfo;
8382 MonoMethodPInvoke *piinfo = &mpiinfo;
8383 MonoMarshalSpec **mspecs;
8384 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8385 MonoImage *image = invoke->klass->image;
8388 // FIXME: include UnmanagedFunctionPointerAttribute info
8391 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8393 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8395 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8398 memset (&mpiinfo, 0, sizeof (mpiinfo));
8399 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8401 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8402 mono_method_get_marshal_info (invoke, mspecs);
8403 /* Freed below so don't alloc from mempool */
8404 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8407 name = g_strdup_printf ("wrapper_aot_native");
8408 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8409 mb->method->save_lmf = 1;
8412 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8415 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8416 info->d.managed_to_native.method = invoke;
8418 g_assert (!sig->hasthis);
8419 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8421 res = mono_mb_create_and_cache_full (cache, invoke,
8422 mb, csig, csig->param_count + 16,
8426 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8428 mono_metadata_free_marshal_spec (mspecs [i]);
8436 * mono_marshal_emit_managed_wrapper:
8438 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8439 * the delegate which wraps the managed method to be called. For closed delegates,
8440 * it could have fewer parameters than the method it wraps.
8441 * THIS_LOC is the memory location where the target of the delegate is stored.
8444 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8447 MonoMethodSignature *sig, *csig;
8453 /* we first do all conversions */
8454 for (i = 0; i < sig->param_count; i ++) {
8455 MonoType *t = sig->params [i];
8458 case MONO_TYPE_OBJECT:
8459 case MONO_TYPE_CLASS:
8460 case MONO_TYPE_VALUETYPE:
8461 case MONO_TYPE_ARRAY:
8462 case MONO_TYPE_SZARRAY:
8463 case MONO_TYPE_STRING:
8464 case MONO_TYPE_BOOLEAN:
8465 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8469 if (!sig->ret->byref) {
8470 switch (sig->ret->type) {
8471 case MONO_TYPE_STRING:
8472 csig->ret = &mono_defaults.int_class->byval_arg;
8479 MonoMethodSignature *sig, *csig;
8480 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8481 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8482 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8483 gboolean closed = FALSE;
8488 /* allocate local 0 (pointer) src_ptr */
8489 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8490 /* allocate local 1 (pointer) dst_ptr */
8491 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8492 /* allocate local 2 (boolean) delete_old */
8493 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8495 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8496 /* Closed delegate */
8497 g_assert (sig->param_count == invoke_sig->param_count + 1);
8499 /* Use a new signature without the first argument */
8500 sig = mono_metadata_signature_dup (sig);
8501 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8502 sig->param_count --;
8505 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8506 /* allocate local 3 to store the return value */
8507 mono_mb_add_local (mb, sig->ret);
8510 if (MONO_TYPE_ISSTRUCT (sig->ret))
8511 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8513 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8514 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8516 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8517 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8522 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8523 * mono_threads_attach_coop ();
8527 * ret = method (...);
8528 * } catch (Exception e) {
8529 * ex = mono_gchandle_new (e, false);
8531 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8532 * mono_threads_detach_coop ();
8535 * mono_marshal_ftnptr_eh_callback (ex);
8541 clauses = g_new0 (MonoExceptionClause, 2);
8543 clause_catch = &clauses [0];
8544 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8545 clause_catch->data.catch_class = mono_defaults.exception_class;
8547 clause_finally = &clauses [1];
8548 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8550 mono_mb_emit_icon (mb, 0);
8551 mono_mb_emit_stloc (mb, 2);
8553 mono_mb_emit_icon (mb, -1);
8554 mono_mb_emit_byte (mb, CEE_CONV_U4);
8555 mono_mb_emit_stloc (mb, ex_local);
8558 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8560 if (!mono_threads_is_coop_enabled ()) {
8561 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8562 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8564 /* mono_threads_attach_coop (); */
8565 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8566 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8567 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8568 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8569 mono_mb_emit_stloc (mb, attach_cookie_local);
8572 /* <interrupt check> */
8573 emit_thread_interrupt_checkpoint (mb);
8575 /* we first do all conversions */
8576 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8577 for (i = 0; i < sig->param_count; i ++) {
8578 MonoType *t = sig->params [i];
8581 case MONO_TYPE_OBJECT:
8582 case MONO_TYPE_CLASS:
8583 case MONO_TYPE_VALUETYPE:
8584 case MONO_TYPE_ARRAY:
8585 case MONO_TYPE_SZARRAY:
8586 case MONO_TYPE_STRING:
8587 case MONO_TYPE_BOOLEAN:
8588 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8598 if (target_handle) {
8599 mono_mb_emit_icon (mb, (gint32)target_handle);
8600 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8603 g_assert_not_reached ();
8605 } else if (closed) {
8606 mono_mb_emit_icon (mb, (gint32)target_handle);
8607 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8610 for (i = 0; i < sig->param_count; i++) {
8611 MonoType *t = sig->params [i];
8613 if (tmp_locals [i]) {
8615 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8617 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8620 mono_mb_emit_ldarg (mb, i);
8623 /* ret = method (...) */
8624 mono_mb_emit_managed_call (mb, method, NULL);
8626 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8627 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8628 mono_class_init (klass);
8629 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
8630 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8631 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8632 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8633 mono_mb_emit_stloc (mb, m->vtaddr_var);
8637 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8638 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8639 } else if (!sig->ret->byref) {
8640 switch (sig->ret->type) {
8641 case MONO_TYPE_VOID:
8643 case MONO_TYPE_BOOLEAN:
8646 case MONO_TYPE_CHAR:
8658 case MONO_TYPE_OBJECT:
8659 mono_mb_emit_stloc (mb, 3);
8661 case MONO_TYPE_STRING:
8662 csig->ret = &mono_defaults.int_class->byval_arg;
8663 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8665 case MONO_TYPE_VALUETYPE:
8666 case MONO_TYPE_CLASS:
8667 case MONO_TYPE_SZARRAY:
8668 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8671 g_warning ("return type 0x%02x unknown", sig->ret->type);
8672 g_assert_not_reached ();
8675 mono_mb_emit_stloc (mb, 3);
8678 /* Convert byref arguments back */
8679 for (i = 0; i < sig->param_count; i ++) {
8680 MonoType *t = sig->params [i];
8681 MonoMarshalSpec *spec = mspecs [i + 1];
8683 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8684 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8686 else if (t->byref) {
8688 case MONO_TYPE_CLASS:
8689 case MONO_TYPE_VALUETYPE:
8690 case MONO_TYPE_OBJECT:
8691 case MONO_TYPE_STRING:
8692 case MONO_TYPE_BOOLEAN:
8693 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8699 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8700 /* The [Out] information is encoded in the delegate signature */
8702 case MONO_TYPE_SZARRAY:
8703 case MONO_TYPE_CLASS:
8704 case MONO_TYPE_VALUETYPE:
8705 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8708 g_assert_not_reached ();
8713 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8717 /* catch (Exception e) { */
8718 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8719 clause_catch->handler_offset = mono_mb_get_label (mb);
8721 mono_mb_emit_stloc (mb, e_local);
8723 /* ex = mono_gchandle_new (e, false); */
8724 mono_mb_emit_ldloc (mb, e_local);
8725 mono_mb_emit_icon (mb, 0);
8726 mono_mb_emit_icall (mb, mono_gchandle_new);
8727 mono_mb_emit_stloc (mb, ex_local);
8729 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8732 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8735 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8736 clause_finally->handler_offset = mono_mb_get_label (mb);
8738 if (!mono_threads_is_coop_enabled ()) {
8739 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8740 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8742 /* mono_threads_detach_coop (); */
8743 mono_mb_emit_ldloc (mb, attach_cookie_local);
8744 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8745 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8749 mono_mb_emit_ldloc (mb, ex_local);
8750 mono_mb_emit_icon (mb, -1);
8751 mono_mb_emit_byte (mb, CEE_CONV_U4);
8752 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8754 /* mono_marshal_ftnptr_eh_callback (ex) */
8755 mono_mb_emit_ldloc (mb, ex_local);
8756 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8759 mono_mb_patch_branch (mb, ex_m1_pos);
8761 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8763 /* } [endfinally] */
8764 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8766 mono_mb_patch_branch (mb, leave_try_pos);
8767 mono_mb_patch_branch (mb, leave_catch_pos);
8770 if (m->retobj_var) {
8771 mono_mb_emit_ldloc (mb, m->retobj_var);
8772 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8773 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8776 if (!MONO_TYPE_IS_VOID(sig->ret))
8777 mono_mb_emit_ldloc (mb, 3);
8778 mono_mb_emit_byte (mb, CEE_RET);
8781 mono_mb_set_clauses (mb, 2, clauses);
8789 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8791 MonoMethodSignature *sig;
8796 * Under windows, delegates passed to native code must use the STDCALL
8797 * calling convention.
8799 csig->call_convention = MONO_CALL_STDCALL;
8802 sig = mono_method_signature (method);
8804 /* Change default calling convention if needed */
8805 /* Why is this a modopt ? */
8806 if (sig->ret && sig->ret->num_mods) {
8807 for (i = 0; i < sig->ret->num_mods; ++i) {
8809 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8810 g_assert (mono_error_ok (&error));
8811 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8812 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8813 csig->call_convention = MONO_CALL_C;
8814 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8815 csig->call_convention = MONO_CALL_STDCALL;
8816 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8817 csig->call_convention = MONO_CALL_FASTCALL;
8818 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8819 csig->call_convention = MONO_CALL_THISCALL;
8826 * mono_marshal_get_managed_wrapper:
8827 * Generates IL code to call managed methods from unmanaged code
8828 * If \p target_handle is \c 0, the wrapper info will be a \c WrapperInfo structure.
8831 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle, MonoError *error)
8833 MonoMethodSignature *sig, *csig, *invoke_sig;
8834 MonoMethodBuilder *mb;
8835 MonoMethod *res, *invoke;
8836 MonoMarshalSpec **mspecs;
8837 MonoMethodPInvoke piinfo;
8840 EmitMarshalContext m;
8842 g_assert (method != NULL);
8845 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
8846 mono_error_set_invalid_program (error, "Failed because method (%s) marked PInvokeCallback (managed method) and extern (unmanaged) simultaneously.", mono_method_full_name (method, TRUE));
8851 * FIXME: Should cache the method+delegate type pair, since the same method
8852 * could be called with different delegates, thus different marshalling
8855 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8857 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8860 invoke = mono_get_delegate_invoke (delegate_klass);
8861 invoke_sig = mono_method_signature (invoke);
8863 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8864 mono_method_get_marshal_info (invoke, mspecs);
8866 sig = mono_method_signature (method);
8868 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8870 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8871 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8873 /* we copy the signature, so that we can modify it */
8875 /* Need to free this later */
8876 csig = mono_metadata_signature_dup (invoke_sig);
8878 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8882 memset (&m, 0, sizeof (m));
8888 m.image = method->klass->image;
8890 mono_marshal_set_callconv_from_modopt (invoke, csig);
8892 /* The attribute is only available in Net 2.0 */
8893 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8894 MonoCustomAttrInfo *cinfo;
8895 MonoCustomAttrEntry *attr;
8898 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8899 * contents of the attribute without constructing it, as that might not be
8900 * possible when running in cross-compiling mode.
8902 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, error);
8903 mono_error_assert_ok (error);
8906 for (i = 0; i < cinfo->num_attrs; ++i) {
8907 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8908 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8909 attr = &cinfo->attrs [i];
8915 MonoArray *typed_args, *named_args;
8916 CattrNamedArg *arginfo;
8920 MonoBoolean set_last_error = 0;
8923 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8924 g_assert (mono_error_ok (&error));
8925 g_assert (mono_array_length (typed_args) == 1);
8928 o = mono_array_get (typed_args, MonoObject*, 0);
8929 call_conv = *(gint32*)mono_object_unbox (o);
8932 for (i = 0; i < mono_array_length (named_args); ++i) {
8933 CattrNamedArg *narg = &arginfo [i];
8935 o = mono_array_get (named_args, MonoObject*, i);
8937 g_assert (narg->field);
8938 if (!strcmp (narg->field->name, "CharSet")) {
8939 charset = *(gint32*)mono_object_unbox (o);
8940 } else if (!strcmp (narg->field->name, "SetLastError")) {
8941 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8942 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8943 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8944 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8945 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8947 g_assert_not_reached ();
8953 memset (&piinfo, 0, sizeof (piinfo));
8955 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8957 csig->call_convention = call_conv - 1;
8960 if (cinfo && !cinfo->cached)
8961 mono_custom_attrs_free (cinfo);
8964 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8966 if (!target_handle) {
8969 // FIXME: Associate it with the method+delegate_klass pair
8970 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8971 info->d.native_to_managed.method = method;
8972 info->d.native_to_managed.klass = delegate_klass;
8974 res = mono_mb_create_and_cache_full (cache, method,
8975 mb, csig, sig->param_count + 16,
8981 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8985 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8987 mono_metadata_free_marshal_spec (mspecs [i]);
8990 /* mono_method_print_code (res); */
8996 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
9000 MonoMethodSignature *sig;
9001 MonoMethodBuilder *mb;
9006 method = mono_get_method_checked (image, token, NULL, NULL, &error);
9008 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
9011 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
9012 MonoMethodSignature *csig;
9013 MonoMarshalSpec **mspecs;
9014 EmitMarshalContext m;
9016 sig = mono_method_signature (method);
9017 g_assert (!sig->hasthis);
9019 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
9020 mono_method_get_marshal_info (method, mspecs);
9022 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9023 csig = mono_metadata_signature_dup_full (image, sig);
9027 memset (&m, 0, sizeof (m));
9035 mono_marshal_set_callconv_from_modopt (method, csig);
9037 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9039 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
9044 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
9047 for (i = sig->param_count; i >= 0; i--)
9049 mono_metadata_free_marshal_spec (mspecs [i]);
9052 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
9053 mono_error_assert_ok (&error);
9054 return compiled_ptr;
9057 sig = mono_method_signature (method);
9058 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9060 param_count = sig->param_count + sig->hasthis;
9062 for (i = 0; i < param_count; i++)
9063 mono_mb_emit_ldarg (mb, i);
9065 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9066 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9068 mono_mb_emit_op (mb, CEE_CALL, method);
9069 mono_mb_emit_byte (mb, CEE_RET);
9074 method = mono_mb_create (mb, sig, param_count, NULL);
9077 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
9078 mono_error_assert_ok (&error);
9079 return compiled_ptr;
9085 * The code directly following this is the cache hit, value positive branch
9087 * This function takes a new method builder with 0 locals and adds two locals
9088 * to create multiple out-branches and the fall through state of having the object
9089 * on the stack after a cache miss
9092 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
9093 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
9094 MonoMethodBuilder *mb)
9098 /* allocate local 0 (pointer) obj_vtable */
9099 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9100 /* allocate local 1 (pointer) cached_vtable */
9101 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9104 mono_mb_emit_ldarg (mb, obj_arg_position);
9105 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
9107 /*obj_vtable = obj->vtable;*/
9108 mono_mb_emit_ldarg (mb, obj_arg_position);
9109 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9110 mono_mb_emit_byte (mb, CEE_LDIND_I);
9111 mono_mb_emit_stloc (mb, 0);
9113 /* cached_vtable = *cache*/
9114 mono_mb_emit_ldarg (mb, cache_arg_position);
9115 mono_mb_emit_byte (mb, CEE_LDIND_I);
9116 mono_mb_emit_stloc (mb, 1);
9118 mono_mb_emit_ldloc (mb, 1);
9119 mono_mb_emit_byte (mb, CEE_LDC_I4);
9120 mono_mb_emit_i4 (mb, ~0x1);
9121 mono_mb_emit_byte (mb, CEE_CONV_I);
9122 mono_mb_emit_byte (mb, CEE_AND);
9123 mono_mb_emit_ldloc (mb, 0);
9124 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9125 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9127 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9128 mono_mb_emit_ldloc (mb, 1);
9129 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9130 mono_mb_emit_byte (mb, CEE_CONV_U);
9131 mono_mb_emit_byte (mb, CEE_AND);
9132 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
9133 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9136 mono_mb_patch_branch (mb, cache_miss_pos);
9139 mono_mb_emit_ldarg (mb, obj_arg_position);
9140 mono_mb_emit_ldarg (mb, class_arg_position);
9141 mono_mb_emit_ldarg (mb, cache_arg_position);
9142 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
9145 #endif /* DISABLE_JIT */
9148 * mono_marshal_get_castclass_with_cache:
9149 * This does the equivalent of \c mono_object_castclass_with_cache.
9152 mono_marshal_get_castclass_with_cache (void)
9154 static MonoMethod *cached;
9156 MonoMethodBuilder *mb;
9157 MonoMethodSignature *sig;
9158 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
9161 const int obj_arg_position = 0;
9162 const int class_arg_position = 1;
9163 const int cache_arg_position = 2;
9168 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9169 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9170 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9171 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9172 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9173 sig->ret = &mono_defaults.object_class->byval_arg;
9177 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9178 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9179 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9182 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9183 mono_mb_emit_ldarg (mb, obj_arg_position);
9184 mono_mb_emit_byte (mb, CEE_RET);
9187 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9188 mono_mb_patch_branch (mb, invalid_cast_pos);
9189 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9192 mono_mb_patch_branch (mb, return_null_pos);
9193 mono_mb_emit_byte (mb, CEE_LDNULL);
9194 mono_mb_emit_byte (mb, CEE_RET);
9195 #endif /* DISABLE_JIT */
9197 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9198 res = mono_mb_create (mb, sig, 8, info);
9201 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9202 mono_free_method (res);
9203 mono_metadata_free_method_signature (sig);
9210 /* this is an icall */
9212 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
9215 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
9216 if (mono_error_set_pending_exception (&error))
9219 if (mono_object_is_transparent_proxy (obj))
9222 uintptr_t cache_update = (uintptr_t)obj->vtable;
9224 cache_update = cache_update | 0x1;
9226 *cache = cache_update;
9232 * mono_marshal_get_isinst_with_cache:
9233 * This does the equivalent of \c mono_marshal_isinst_with_cache.
9236 mono_marshal_get_isinst_with_cache (void)
9238 static MonoMethod *cached;
9240 MonoMethodBuilder *mb;
9241 MonoMethodSignature *sig;
9242 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
9245 const int obj_arg_position = 0;
9246 const int class_arg_position = 1;
9247 const int cache_arg_position = 2;
9252 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9253 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9255 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9257 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9259 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9260 sig->ret = &mono_defaults.object_class->byval_arg;
9264 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9265 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9266 // Return the object gotten via the slow path.
9267 mono_mb_emit_byte (mb, CEE_RET);
9270 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9271 mono_mb_patch_branch (mb, return_null_pos);
9272 mono_mb_emit_byte (mb, CEE_LDNULL);
9273 mono_mb_emit_byte (mb, CEE_RET);
9276 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9277 mono_mb_emit_ldarg (mb, obj_arg_position);
9278 mono_mb_emit_byte (mb, CEE_RET);
9281 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9282 res = mono_mb_create (mb, sig, 8, info);
9285 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9286 mono_free_method (res);
9287 mono_metadata_free_method_signature (sig);
9295 * mono_marshal_get_struct_to_ptr:
9296 * \param klass \c MonoClass
9298 * Generates IL code for <code>StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)</code>
9301 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9303 MonoMethodBuilder *mb;
9304 static MonoMethod *stoptr = NULL;
9308 g_assert (klass != NULL);
9310 mono_marshal_load_type_info (klass);
9312 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9313 if (marshal_info->str_to_ptr)
9314 return marshal_info->str_to_ptr;
9317 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9320 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9323 if (klass->blittable) {
9324 mono_mb_emit_byte (mb, CEE_LDARG_1);
9325 mono_mb_emit_byte (mb, CEE_LDARG_0);
9326 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9327 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9328 mono_mb_emit_byte (mb, CEE_PREFIX1);
9329 mono_mb_emit_byte (mb, CEE_CPBLK);
9332 /* allocate local 0 (pointer) src_ptr */
9333 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9334 /* allocate local 1 (pointer) dst_ptr */
9335 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9336 /* allocate local 2 (boolean) delete_old */
9337 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9338 mono_mb_emit_byte (mb, CEE_LDARG_2);
9339 mono_mb_emit_stloc (mb, 2);
9341 /* initialize src_ptr to point to the start of object data */
9342 mono_mb_emit_byte (mb, CEE_LDARG_0);
9343 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9344 mono_mb_emit_stloc (mb, 0);
9346 /* initialize dst_ptr */
9347 mono_mb_emit_byte (mb, CEE_LDARG_1);
9348 mono_mb_emit_stloc (mb, 1);
9350 emit_struct_conv (mb, klass, FALSE);
9353 mono_mb_emit_byte (mb, CEE_RET);
9355 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9356 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9359 mono_marshal_lock ();
9360 if (!marshal_info->str_to_ptr)
9361 marshal_info->str_to_ptr = res;
9363 res = marshal_info->str_to_ptr;
9364 mono_marshal_unlock ();
9369 * mono_marshal_get_ptr_to_struct:
9370 * \param klass \c MonoClass
9371 * Generates IL code for <code>PtrToStructure (IntPtr src, object structure)</code>
9374 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9376 MonoMethodBuilder *mb;
9377 static MonoMethodSignature *ptostr = NULL;
9381 g_assert (klass != NULL);
9383 mono_marshal_load_type_info (klass);
9385 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9386 if (marshal_info->ptr_to_str)
9387 return marshal_info->ptr_to_str;
9390 MonoMethodSignature *sig;
9392 /* Create the signature corresponding to
9393 static void PtrToStructure (IntPtr ptr, object structure);
9394 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9395 sig = mono_create_icall_signature ("void ptr object");
9396 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9398 mono_memory_barrier ();
9402 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9405 if (klass->blittable) {
9406 mono_mb_emit_byte (mb, CEE_LDARG_1);
9407 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9408 mono_mb_emit_byte (mb, CEE_LDARG_0);
9409 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9410 mono_mb_emit_byte (mb, CEE_PREFIX1);
9411 mono_mb_emit_byte (mb, CEE_CPBLK);
9414 /* allocate local 0 (pointer) src_ptr */
9415 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9416 /* allocate local 1 (pointer) dst_ptr */
9417 mono_mb_add_local (mb, &klass->this_arg);
9419 /* initialize src_ptr to point to the start of object data */
9420 mono_mb_emit_byte (mb, CEE_LDARG_0);
9421 mono_mb_emit_stloc (mb, 0);
9423 /* initialize dst_ptr */
9424 mono_mb_emit_byte (mb, CEE_LDARG_1);
9425 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9426 mono_mb_emit_stloc (mb, 1);
9428 emit_struct_conv (mb, klass, TRUE);
9431 mono_mb_emit_byte (mb, CEE_RET);
9433 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9434 res = mono_mb_create (mb, ptostr, 0, info);
9437 mono_marshal_lock ();
9438 if (!marshal_info->ptr_to_str)
9439 marshal_info->ptr_to_str = res;
9441 res = marshal_info->ptr_to_str;
9442 mono_marshal_unlock ();
9447 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9448 * This is used to avoid infinite recursion since it is hard to determine where to
9449 * replace a method with its synchronized wrapper, and where not.
9450 * The runtime should execute METHOD instead of the wrapper.
9453 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9455 MonoMethodBuilder *mb;
9457 MonoMethodSignature *sig;
9459 MonoGenericContext *ctx = NULL;
9460 MonoGenericContainer *container = NULL;
9462 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9463 ctx = &((MonoMethodInflated*)method)->context;
9464 method = ((MonoMethodInflated*)method)->declaring;
9465 container = mono_method_get_generic_container (method);
9467 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9468 g_assert (container);
9471 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9473 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9474 mono_mb_emit_byte (mb, CEE_RET);
9476 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9478 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9479 info->d.synchronized_inner.method = method;
9480 res = mono_mb_create (mb, sig, 0, info);
9484 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9485 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9491 * mono_marshal_get_synchronized_wrapper:
9492 * Generates IL code for the synchronized wrapper: the generated method
9493 * calls \p method while locking \c this or the parent type.
9496 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9498 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9499 MonoMethodSignature *sig;
9500 MonoExceptionClause *clause;
9501 MonoMethodBuilder *mb;
9505 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9506 MonoGenericContext *ctx = NULL;
9507 MonoMethod *orig_method = NULL;
9508 MonoGenericContainer *container = NULL;
9512 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9515 /* FIXME: Support generic methods too */
9516 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9517 orig_method = method;
9518 ctx = &((MonoMethodInflated*)method)->context;
9519 method = ((MonoMethodInflated*)method)->declaring;
9520 container = mono_method_get_generic_container (method);
9522 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9523 g_assert (container);
9530 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9531 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9535 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9536 if ((res = mono_marshal_find_in_cache (cache, method)))
9540 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9543 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9545 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9546 info->d.synchronized.method = method;
9549 mb->skip_visibility = 1;
9551 if (!MONO_TYPE_IS_VOID (sig->ret))
9552 ret_local = mono_mb_add_local (mb, sig->ret);
9555 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9556 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9557 mono_class_set_type_load_failure (method->klass, "");
9559 /* This will throw the type load exception when the wrapper is compiled */
9560 mono_mb_emit_byte (mb, CEE_LDNULL);
9561 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9562 mono_mb_emit_byte (mb, CEE_POP);
9564 if (!MONO_TYPE_IS_VOID (sig->ret))
9565 mono_mb_emit_ldloc (mb, ret_local);
9566 mono_mb_emit_byte (mb, CEE_RET);
9569 res = mono_mb_create_and_cache_full (cache, method,
9570 mb, sig, sig->param_count + 16, info, NULL);
9578 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9579 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9581 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9582 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9585 mono_marshal_lock ();
9587 if (!enter_method) {
9588 MonoMethodDesc *desc;
9590 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9591 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9592 g_assert (enter_method);
9593 mono_method_desc_free (desc);
9595 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9596 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9597 g_assert (exit_method);
9598 mono_method_desc_free (desc);
9600 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9601 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9602 g_assert (gettypefromhandle_method);
9603 mono_method_desc_free (desc);
9606 mono_marshal_unlock ();
9609 /* Push this or the type object */
9610 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9611 /* We have special handling for this in the JIT */
9612 int index = mono_mb_add_data (mb, method->klass);
9613 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9614 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9615 mono_mb_emit_i4 (mb, index);
9617 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9620 mono_mb_emit_ldarg (mb, 0);
9621 mono_mb_emit_stloc (mb, this_local);
9623 /* Call Monitor::Enter() */
9624 mono_mb_emit_ldloc (mb, this_local);
9625 mono_mb_emit_ldloc_addr (mb, taken_local);
9626 mono_mb_emit_managed_call (mb, enter_method, NULL);
9628 clause->try_offset = mono_mb_get_label (mb);
9630 /* Call the method */
9632 mono_mb_emit_ldarg (mb, 0);
9633 for (i = 0; i < sig->param_count; i++)
9634 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9638 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9639 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9641 mono_mb_emit_managed_call (mb, method, NULL);
9644 if (!MONO_TYPE_IS_VOID (sig->ret))
9645 mono_mb_emit_stloc (mb, ret_local);
9647 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9649 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9650 clause->handler_offset = mono_mb_get_label (mb);
9652 /* Call Monitor::Exit() if needed */
9653 mono_mb_emit_ldloc (mb, taken_local);
9654 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9655 mono_mb_emit_ldloc (mb, this_local);
9656 mono_mb_emit_managed_call (mb, exit_method, NULL);
9657 mono_mb_patch_branch (mb, pos2);
9658 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9660 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9662 mono_mb_patch_branch (mb, pos);
9663 if (!MONO_TYPE_IS_VOID (sig->ret))
9664 mono_mb_emit_ldloc (mb, ret_local);
9665 mono_mb_emit_byte (mb, CEE_RET);
9667 mono_mb_set_clauses (mb, 1, clause);
9672 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9673 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9675 res = mono_mb_create_and_cache_full (cache, method,
9676 mb, sig, sig->param_count + 16, info, NULL);
9685 * mono_marshal_get_unbox_wrapper:
9686 * The returned method calls \p method unboxing the \c this argument.
9689 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9691 MonoMethodSignature *sig = mono_method_signature (method);
9693 MonoMethodBuilder *mb;
9698 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9700 if ((res = mono_marshal_find_in_cache (cache, method)))
9703 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9705 g_assert (sig->hasthis);
9708 mono_mb_emit_ldarg (mb, 0);
9709 mono_mb_emit_icon (mb, sizeof (MonoObject));
9710 mono_mb_emit_byte (mb, CEE_ADD);
9711 for (i = 0; i < sig->param_count; ++i)
9712 mono_mb_emit_ldarg (mb, i + 1);
9713 mono_mb_emit_managed_call (mb, method, NULL);
9714 mono_mb_emit_byte (mb, CEE_RET);
9717 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9718 info->d.unbox.method = method;
9720 res = mono_mb_create_and_cache_full (cache, method,
9721 mb, sig, sig->param_count + 16, info, NULL);
9724 /* mono_method_print_code (res); */
9730 STELEMREF_OBJECT, /*no check at all*/
9731 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9732 STELEMREF_CLASS, /*only the klass->parents check*/
9733 STELEMREF_CLASS_SMALL_IDEPTH, /* like STELEMREF_CLASS bit without the idepth check */
9734 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9735 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9736 STELEMREF_KIND_COUNT
9739 static const char *strelemref_wrapper_name[] = {
9740 "object", "sealed_class", "class", "class_small_idepth", "interface", "complex"
9744 is_monomorphic_array (MonoClass *klass)
9746 MonoClass *element_class;
9747 if (klass->rank != 1)
9750 element_class = klass->element_class;
9751 return mono_class_is_sealed (element_class) || element_class->valuetype;
9755 get_virtual_stelemref_kind (MonoClass *element_class)
9757 if (element_class == mono_defaults.object_class)
9758 return STELEMREF_OBJECT;
9759 if (is_monomorphic_array (element_class))
9760 return STELEMREF_SEALED_CLASS;
9761 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9762 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9763 #ifdef COMPRESSED_INTERFACE_BITMAP
9764 return STELEMREF_COMPLEX;
9766 return STELEMREF_INTERFACE;
9768 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9769 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9770 return STELEMREF_COMPLEX;
9771 if (mono_class_is_sealed (element_class))
9772 return STELEMREF_SEALED_CLASS;
9773 if (element_class->idepth <= MONO_DEFAULT_SUPERTABLE_SIZE)
9774 return STELEMREF_CLASS_SMALL_IDEPTH;
9776 return STELEMREF_CLASS;
9782 load_array_element_address (MonoMethodBuilder *mb)
9784 mono_mb_emit_ldarg (mb, 0);
9785 mono_mb_emit_ldarg (mb, 1);
9786 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9790 load_array_class (MonoMethodBuilder *mb, int aklass)
9792 mono_mb_emit_ldarg (mb, 0);
9793 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9794 mono_mb_emit_byte (mb, CEE_LDIND_I);
9795 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9796 mono_mb_emit_byte (mb, CEE_LDIND_I);
9797 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9798 mono_mb_emit_byte (mb, CEE_LDIND_I);
9799 mono_mb_emit_stloc (mb, aklass);
9803 load_value_class (MonoMethodBuilder *mb, int vklass)
9805 mono_mb_emit_ldarg (mb, 2);
9806 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9807 mono_mb_emit_byte (mb, CEE_LDIND_I);
9808 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9809 mono_mb_emit_byte (mb, CEE_LDIND_I);
9810 mono_mb_emit_stloc (mb, vklass);
9816 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9818 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9819 printf ("slow vstore of %s\n", name);
9826 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9827 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9828 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9829 * - Add a case for arrays of arrays.
9832 get_virtual_stelemref_wrapper (int kind)
9834 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9835 static MonoMethodSignature *signature;
9836 MonoMethodBuilder *mb;
9839 const char *param_names [16];
9840 guint32 b1, b2, b3, b4;
9841 int aklass, vklass, vtable, uiid;
9842 int array_slot_addr;
9845 if (cached_methods [kind])
9846 return cached_methods [kind];
9848 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9849 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9853 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9855 /* void this::stelemref (size_t idx, void* value) */
9856 sig->ret = &mono_defaults.void_class->byval_arg;
9857 sig->hasthis = TRUE;
9858 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9859 sig->params [1] = &mono_defaults.object_class->byval_arg;
9864 param_names [0] = "index";
9865 param_names [1] = "value";
9866 mono_mb_set_param_names (mb, param_names);
9868 /*For now simply call plain old stelemref*/
9870 case STELEMREF_OBJECT:
9871 /* ldelema (implicit bound check) */
9872 load_array_element_address (mb);
9874 mono_mb_emit_ldarg (mb, 2);
9875 mono_mb_emit_byte (mb, CEE_STIND_REF);
9876 mono_mb_emit_byte (mb, CEE_RET);
9879 case STELEMREF_COMPLEX: {
9882 <ldelema (bound check)>
9885 if (!mono_object_isinst (value, aklass))
9889 *array_slot_addr = value;
9892 throw new ArrayTypeMismatchException ();
9895 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9896 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9897 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9901 /*Use this to debug/record stores that are going thru the slow path*/
9902 MonoMethodSignature *csig;
9903 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9904 csig->ret = &mono_defaults.void_class->byval_arg;
9905 csig->params [0] = &mono_defaults.object_class->byval_arg;
9906 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9907 csig->params [2] = &mono_defaults.object_class->byval_arg;
9908 mono_mb_emit_ldarg (mb, 0);
9909 mono_mb_emit_ldarg (mb, 1);
9910 mono_mb_emit_ldarg (mb, 2);
9911 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9915 /* ldelema (implicit bound check) */
9916 load_array_element_address (mb);
9917 mono_mb_emit_stloc (mb, array_slot_addr);
9919 /* if (!value) goto do_store */
9920 mono_mb_emit_ldarg (mb, 2);
9921 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9923 /* aklass = array->vtable->klass->element_class */
9924 load_array_class (mb, aklass);
9925 /* vklass = value->vtable->klass */
9926 load_value_class (mb, vklass);
9929 mono_mb_emit_ldloc (mb, vklass);
9930 mono_mb_emit_ldloc (mb, aklass);
9931 b_fast = mono_mb_emit_branch (mb, CEE_BEQ);
9933 /*if (mono_object_isinst (value, aklass)) */
9934 mono_mb_emit_ldarg (mb, 2);
9935 mono_mb_emit_ldloc (mb, aklass);
9936 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9937 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9940 mono_mb_patch_branch (mb, b1);
9941 mono_mb_patch_branch (mb, b_fast);
9942 mono_mb_emit_ldloc (mb, array_slot_addr);
9943 mono_mb_emit_ldarg (mb, 2);
9944 mono_mb_emit_byte (mb, CEE_STIND_REF);
9945 mono_mb_emit_byte (mb, CEE_RET);
9948 mono_mb_patch_branch (mb, b2);
9950 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9953 case STELEMREF_SEALED_CLASS:
9955 <ldelema (bound check)>
9959 aklass = array->vtable->klass->element_class;
9960 vklass = value->vtable->klass;
9962 if (vklass != aklass)
9966 *array_slot_addr = value;
9969 throw new ArrayTypeMismatchException ();
9971 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9972 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9973 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9975 /* ldelema (implicit bound check) */
9976 load_array_element_address (mb);
9977 mono_mb_emit_stloc (mb, array_slot_addr);
9979 /* if (!value) goto do_store */
9980 mono_mb_emit_ldarg (mb, 2);
9981 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9983 /* aklass = array->vtable->klass->element_class */
9984 load_array_class (mb, aklass);
9986 /* vklass = value->vtable->klass */
9987 load_value_class (mb, vklass);
9989 /*if (vklass != aklass) goto do_exception; */
9990 mono_mb_emit_ldloc (mb, aklass);
9991 mono_mb_emit_ldloc (mb, vklass);
9992 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9995 mono_mb_patch_branch (mb, b1);
9996 mono_mb_emit_ldloc (mb, array_slot_addr);
9997 mono_mb_emit_ldarg (mb, 2);
9998 mono_mb_emit_byte (mb, CEE_STIND_REF);
9999 mono_mb_emit_byte (mb, CEE_RET);
10001 /* do_exception: */
10002 mono_mb_patch_branch (mb, b2);
10003 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10006 case STELEMREF_CLASS: {
10009 <ldelema (bound check)>
10013 aklass = array->vtable->klass->element_class;
10014 vklass = value->vtable->klass;
10016 if (vklass->idepth < aklass->idepth)
10019 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10023 *array_slot_addr = value;
10027 throw new ArrayTypeMismatchException ();
10029 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10030 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10031 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10033 /* ldelema (implicit bound check) */
10034 load_array_element_address (mb);
10035 mono_mb_emit_stloc (mb, array_slot_addr);
10037 /* if (!value) goto do_store */
10038 mono_mb_emit_ldarg (mb, 2);
10039 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10041 /* aklass = array->vtable->klass->element_class */
10042 load_array_class (mb, aklass);
10044 /* vklass = value->vtable->klass */
10045 load_value_class (mb, vklass);
10047 /* if (vklass->idepth < aklass->idepth) goto failue */
10048 mono_mb_emit_ldloc (mb, vklass);
10049 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10050 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10052 mono_mb_emit_ldloc (mb, aklass);
10053 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10054 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10056 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10058 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10059 mono_mb_emit_ldloc (mb, vklass);
10060 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10061 mono_mb_emit_byte (mb, CEE_LDIND_I);
10063 mono_mb_emit_ldloc (mb, aklass);
10064 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10065 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10066 mono_mb_emit_icon (mb, 1);
10067 mono_mb_emit_byte (mb, CEE_SUB);
10068 mono_mb_emit_icon (mb, sizeof (void*));
10069 mono_mb_emit_byte (mb, CEE_MUL);
10070 mono_mb_emit_byte (mb, CEE_ADD);
10071 mono_mb_emit_byte (mb, CEE_LDIND_I);
10073 mono_mb_emit_ldloc (mb, aklass);
10074 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10077 mono_mb_patch_branch (mb, b1);
10078 mono_mb_emit_ldloc (mb, array_slot_addr);
10079 mono_mb_emit_ldarg (mb, 2);
10080 mono_mb_emit_byte (mb, CEE_STIND_REF);
10081 mono_mb_emit_byte (mb, CEE_RET);
10083 /* do_exception: */
10084 mono_mb_patch_branch (mb, b3);
10085 mono_mb_patch_branch (mb, b4);
10087 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10091 case STELEMREF_CLASS_SMALL_IDEPTH:
10094 <ldelema (bound check)>
10098 aklass = array->vtable->klass->element_class;
10099 vklass = value->vtable->klass;
10101 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10105 *array_slot_addr = value;
10109 throw new ArrayTypeMismatchException ();
10111 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10112 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10113 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10115 /* ldelema (implicit bound check) */
10116 load_array_element_address (mb);
10117 mono_mb_emit_stloc (mb, array_slot_addr);
10119 /* if (!value) goto do_store */
10120 mono_mb_emit_ldarg (mb, 2);
10121 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10123 /* aklass = array->vtable->klass->element_class */
10124 load_array_class (mb, aklass);
10126 /* vklass = value->vtable->klass */
10127 load_value_class (mb, vklass);
10129 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10130 mono_mb_emit_ldloc (mb, vklass);
10131 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10132 mono_mb_emit_byte (mb, CEE_LDIND_I);
10134 mono_mb_emit_ldloc (mb, aklass);
10135 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10136 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10137 mono_mb_emit_icon (mb, 1);
10138 mono_mb_emit_byte (mb, CEE_SUB);
10139 mono_mb_emit_icon (mb, sizeof (void*));
10140 mono_mb_emit_byte (mb, CEE_MUL);
10141 mono_mb_emit_byte (mb, CEE_ADD);
10142 mono_mb_emit_byte (mb, CEE_LDIND_I);
10144 mono_mb_emit_ldloc (mb, aklass);
10145 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10148 mono_mb_patch_branch (mb, b1);
10149 mono_mb_emit_ldloc (mb, array_slot_addr);
10150 mono_mb_emit_ldarg (mb, 2);
10151 mono_mb_emit_byte (mb, CEE_STIND_REF);
10152 mono_mb_emit_byte (mb, CEE_RET);
10154 /* do_exception: */
10155 mono_mb_patch_branch (mb, b4);
10157 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10160 case STELEMREF_INTERFACE:
10167 klass = array->obj.vtable->klass->element_class;
10168 vt = value->vtable;
10169 uiid = klass->interface_id;
10170 if (uiid > vt->max_interface_id)
10172 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10175 mono_array_setref (array, index, value);
10178 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10180 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10181 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10182 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10183 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10185 /* ldelema (implicit bound check) */
10186 load_array_element_address (mb);
10187 mono_mb_emit_stloc (mb, array_slot_addr);
10189 /* if (!value) goto do_store */
10190 mono_mb_emit_ldarg (mb, 2);
10191 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10193 /* klass = array->vtable->klass->element_class */
10194 load_array_class (mb, aklass);
10196 /* vt = value->vtable */
10197 mono_mb_emit_ldarg (mb, 2);
10198 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10199 mono_mb_emit_byte (mb, CEE_LDIND_I);
10200 mono_mb_emit_stloc (mb, vtable);
10202 /* uiid = klass->interface_id; */
10203 mono_mb_emit_ldloc (mb, aklass);
10204 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
10205 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10206 mono_mb_emit_stloc (mb, uiid);
10208 /*if (uiid > vt->max_interface_id)*/
10209 mono_mb_emit_ldloc (mb, uiid);
10210 mono_mb_emit_ldloc (mb, vtable);
10211 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
10212 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10213 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10215 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10217 /*vt->interface_bitmap*/
10218 mono_mb_emit_ldloc (mb, vtable);
10219 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10220 mono_mb_emit_byte (mb, CEE_LDIND_I);
10223 mono_mb_emit_ldloc (mb, uiid);
10224 mono_mb_emit_icon (mb, 3);
10225 mono_mb_emit_byte (mb, CEE_SHR_UN);
10227 /*vt->interface_bitmap [(uiid) >> 3]*/
10228 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10229 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10231 /*(1 << ((uiid)&7)))*/
10232 mono_mb_emit_icon (mb, 1);
10233 mono_mb_emit_ldloc (mb, uiid);
10234 mono_mb_emit_icon (mb, 7);
10235 mono_mb_emit_byte (mb, CEE_AND);
10236 mono_mb_emit_byte (mb, CEE_SHL);
10238 /*bitwise and the whole thing*/
10239 mono_mb_emit_byte (mb, CEE_AND);
10240 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10243 mono_mb_patch_branch (mb, b1);
10244 mono_mb_emit_ldloc (mb, array_slot_addr);
10245 mono_mb_emit_ldarg (mb, 2);
10246 mono_mb_emit_byte (mb, CEE_STIND_REF);
10247 mono_mb_emit_byte (mb, CEE_RET);
10249 /* do_exception: */
10250 mono_mb_patch_branch (mb, b2);
10251 mono_mb_patch_branch (mb, b3);
10252 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10256 mono_mb_emit_ldarg (mb, 0);
10257 mono_mb_emit_ldarg (mb, 1);
10258 mono_mb_emit_ldarg (mb, 2);
10259 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10260 mono_mb_emit_byte (mb, CEE_RET);
10263 #endif /* DISABLE_JIT */
10264 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10265 info->d.virtual_stelemref.kind = kind;
10266 res = mono_mb_create (mb, signature, 4, info);
10267 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10269 mono_marshal_lock ();
10270 if (!cached_methods [kind]) {
10271 cached_methods [kind] = res;
10272 mono_marshal_unlock ();
10274 mono_marshal_unlock ();
10275 mono_free_method (res);
10279 return cached_methods [kind];
10283 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10287 g_assert (array_class->rank == 1);
10288 kind = get_virtual_stelemref_kind (array_class->element_class);
10290 return get_virtual_stelemref_wrapper (kind);
10294 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10299 *nwrappers = STELEMREF_KIND_COUNT;
10300 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10301 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10302 res [i] = get_virtual_stelemref_wrapper (i);
10307 * mono_marshal_get_stelemref:
10310 mono_marshal_get_stelemref (void)
10312 static MonoMethod* ret = NULL;
10313 MonoMethodSignature *sig;
10314 MonoMethodBuilder *mb;
10317 guint32 b1, b2, b3, b4;
10319 int aklass, vklass;
10320 int array_slot_addr;
10325 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10328 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10330 /* void stelemref (void* array, int idx, void* value) */
10331 sig->ret = &mono_defaults.void_class->byval_arg;
10332 sig->params [0] = &mono_defaults.object_class->byval_arg;
10333 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10334 sig->params [2] = &mono_defaults.object_class->byval_arg;
10336 #ifndef DISABLE_JIT
10337 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10338 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10339 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10343 <ldelema (bound check)>
10347 aklass = array->vtable->klass->element_class;
10348 vklass = value->vtable->klass;
10350 if (vklass->idepth < aklass->idepth)
10353 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10357 *array_slot_addr = value;
10361 if (mono_object_isinst (value, aklass))
10364 throw new ArrayTypeMismatchException ();
10367 /* ldelema (implicit bound check) */
10368 mono_mb_emit_ldarg (mb, 0);
10369 mono_mb_emit_ldarg (mb, 1);
10370 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10371 mono_mb_emit_stloc (mb, array_slot_addr);
10373 /* if (!value) goto do_store */
10374 mono_mb_emit_ldarg (mb, 2);
10375 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10377 /* aklass = array->vtable->klass->element_class */
10378 mono_mb_emit_ldarg (mb, 0);
10379 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10380 mono_mb_emit_byte (mb, CEE_LDIND_I);
10381 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10382 mono_mb_emit_byte (mb, CEE_LDIND_I);
10383 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10384 mono_mb_emit_byte (mb, CEE_LDIND_I);
10385 mono_mb_emit_stloc (mb, aklass);
10387 /* vklass = value->vtable->klass */
10388 mono_mb_emit_ldarg (mb, 2);
10389 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10390 mono_mb_emit_byte (mb, CEE_LDIND_I);
10391 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10392 mono_mb_emit_byte (mb, CEE_LDIND_I);
10393 mono_mb_emit_stloc (mb, vklass);
10395 /* if (vklass->idepth < aklass->idepth) goto failue */
10396 mono_mb_emit_ldloc (mb, vklass);
10397 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10398 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10400 mono_mb_emit_ldloc (mb, aklass);
10401 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10402 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10404 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10406 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10407 mono_mb_emit_ldloc (mb, vklass);
10408 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10409 mono_mb_emit_byte (mb, CEE_LDIND_I);
10411 mono_mb_emit_ldloc (mb, aklass);
10412 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10413 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10414 mono_mb_emit_icon (mb, 1);
10415 mono_mb_emit_byte (mb, CEE_SUB);
10416 mono_mb_emit_icon (mb, sizeof (void*));
10417 mono_mb_emit_byte (mb, CEE_MUL);
10418 mono_mb_emit_byte (mb, CEE_ADD);
10419 mono_mb_emit_byte (mb, CEE_LDIND_I);
10421 mono_mb_emit_ldloc (mb, aklass);
10423 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10425 copy_pos = mono_mb_get_label (mb);
10427 mono_mb_patch_branch (mb, b1);
10428 mono_mb_emit_ldloc (mb, array_slot_addr);
10429 mono_mb_emit_ldarg (mb, 2);
10430 mono_mb_emit_byte (mb, CEE_STIND_REF);
10432 mono_mb_emit_byte (mb, CEE_RET);
10435 mono_mb_patch_branch (mb, b2);
10436 mono_mb_patch_branch (mb, b3);
10438 mono_mb_emit_ldarg (mb, 2);
10439 mono_mb_emit_ldloc (mb, aklass);
10440 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10442 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10443 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10444 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10446 mono_mb_emit_byte (mb, CEE_RET);
10448 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10449 ret = mono_mb_create (mb, sig, 4, info);
10456 * mono_marshal_get_gsharedvt_in_wrapper:
10458 * This wrapper handles calls from normal code to gsharedvt code.
10461 mono_marshal_get_gsharedvt_in_wrapper (void)
10463 static MonoMethod* ret = NULL;
10464 MonoMethodSignature *sig;
10465 MonoMethodBuilder *mb;
10471 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10473 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10474 sig->ret = &mono_defaults.void_class->byval_arg;
10476 #ifndef DISABLE_JIT
10478 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10480 mono_mb_emit_byte (mb, CEE_RET);
10482 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10483 ret = mono_mb_create (mb, sig, 4, info);
10490 * mono_marshal_get_gsharedvt_out_wrapper:
10492 * This wrapper handles calls from gsharedvt code to normal code.
10495 mono_marshal_get_gsharedvt_out_wrapper (void)
10497 static MonoMethod* ret = NULL;
10498 MonoMethodSignature *sig;
10499 MonoMethodBuilder *mb;
10505 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10507 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10508 sig->ret = &mono_defaults.void_class->byval_arg;
10510 #ifndef DISABLE_JIT
10512 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10514 mono_mb_emit_byte (mb, CEE_RET);
10516 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10517 ret = mono_mb_create (mb, sig, 4, info);
10526 MonoMethod *method;
10529 /* LOCKING: vars accessed under the marshal lock */
10530 static ArrayElemAddr *elem_addr_cache = NULL;
10531 static int elem_addr_cache_size = 0;
10532 static int elem_addr_cache_next = 0;
10535 * mono_marshal_get_array_address:
10536 * \param rank rank of the array type
10537 * \param elem_size size in bytes of an element of an array.
10539 * Returns a MonoMethod that implements the code to get the address
10540 * of an element in a multi-dimenasional array of \p rank dimensions.
10541 * The returned method takes an array as the first argument and then
10542 * \p rank indexes for the \p rank dimensions.
10543 * If ELEM_SIZE is 0, read the array size from the array object.
10546 mono_marshal_get_array_address (int rank, int elem_size)
10549 MonoMethodBuilder *mb;
10550 MonoMethodSignature *sig;
10553 int i, bounds, ind, realidx;
10554 int branch_pos, *branch_positions;
10558 mono_marshal_lock ();
10559 for (i = 0; i < elem_addr_cache_next; ++i) {
10560 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10561 ret = elem_addr_cache [i].method;
10565 mono_marshal_unlock ();
10569 branch_positions = g_new0 (int, rank);
10571 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10573 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10574 sig->ret = &mono_defaults.int_class->byval_arg;
10575 sig->params [0] = &mono_defaults.object_class->byval_arg;
10576 for (i = 0; i < rank; ++i) {
10577 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10580 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10581 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10584 #ifndef DISABLE_JIT
10585 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10586 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10587 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10589 /* bounds = array->bounds; */
10590 mono_mb_emit_ldarg (mb, 0);
10591 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10592 mono_mb_emit_byte (mb, CEE_LDIND_I);
10593 mono_mb_emit_stloc (mb, bounds);
10595 /* ind is the overall element index, realidx is the partial index in a single dimension */
10596 /* ind = idx0 - bounds [0].lower_bound */
10597 mono_mb_emit_ldarg (mb, 1);
10598 mono_mb_emit_ldloc (mb, bounds);
10599 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10600 mono_mb_emit_byte (mb, CEE_ADD);
10601 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10602 mono_mb_emit_byte (mb, CEE_SUB);
10603 mono_mb_emit_stloc (mb, ind);
10604 /* if (ind >= bounds [0].length) goto exeception; */
10605 mono_mb_emit_ldloc (mb, ind);
10606 mono_mb_emit_ldloc (mb, bounds);
10607 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10608 mono_mb_emit_byte (mb, CEE_ADD);
10609 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10610 /* note that we use unsigned comparison */
10611 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10613 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10614 * We could also decide to ignore the passed elem_size and get it
10615 * from the array object, to reduce the number of methods we generate:
10616 * the additional cost is 3 memory loads and a non-immediate mul.
10618 for (i = 1; i < rank; ++i) {
10619 /* realidx = idxi - bounds [i].lower_bound */
10620 mono_mb_emit_ldarg (mb, 1 + i);
10621 mono_mb_emit_ldloc (mb, bounds);
10622 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10623 mono_mb_emit_byte (mb, CEE_ADD);
10624 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10625 mono_mb_emit_byte (mb, CEE_SUB);
10626 mono_mb_emit_stloc (mb, realidx);
10627 /* if (realidx >= bounds [i].length) goto exeception; */
10628 mono_mb_emit_ldloc (mb, realidx);
10629 mono_mb_emit_ldloc (mb, bounds);
10630 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10631 mono_mb_emit_byte (mb, CEE_ADD);
10632 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10633 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10634 /* ind = ind * bounds [i].length + realidx */
10635 mono_mb_emit_ldloc (mb, ind);
10636 mono_mb_emit_ldloc (mb, bounds);
10637 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10638 mono_mb_emit_byte (mb, CEE_ADD);
10639 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10640 mono_mb_emit_byte (mb, CEE_MUL);
10641 mono_mb_emit_ldloc (mb, realidx);
10642 mono_mb_emit_byte (mb, CEE_ADD);
10643 mono_mb_emit_stloc (mb, ind);
10646 /* return array->vector + ind * element_size */
10647 mono_mb_emit_ldarg (mb, 0);
10648 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10649 mono_mb_emit_ldloc (mb, ind);
10651 mono_mb_emit_icon (mb, elem_size);
10653 /* Load arr->vtable->klass->sizes.element_class */
10654 mono_mb_emit_ldarg (mb, 0);
10655 mono_mb_emit_byte (mb, CEE_CONV_I);
10656 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10657 mono_mb_emit_byte (mb, CEE_ADD);
10658 mono_mb_emit_byte (mb, CEE_LDIND_I);
10659 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10660 mono_mb_emit_byte (mb, CEE_ADD);
10661 mono_mb_emit_byte (mb, CEE_LDIND_I);
10662 /* sizes is an union, so this reads sizes.element_size */
10663 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10664 mono_mb_emit_byte (mb, CEE_ADD);
10665 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10667 mono_mb_emit_byte (mb, CEE_MUL);
10668 mono_mb_emit_byte (mb, CEE_ADD);
10669 mono_mb_emit_byte (mb, CEE_RET);
10671 /* patch the branches to get here and throw */
10672 for (i = 1; i < rank; ++i) {
10673 mono_mb_patch_branch (mb, branch_positions [i]);
10675 mono_mb_patch_branch (mb, branch_pos);
10676 /* throw exception */
10677 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10679 g_free (branch_positions);
10680 #endif /* DISABLE_JIT */
10682 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10683 info->d.element_addr.rank = rank;
10684 info->d.element_addr.elem_size = elem_size;
10685 ret = mono_mb_create (mb, sig, 4, info);
10688 /* cache the result */
10690 mono_marshal_lock ();
10691 for (i = 0; i < elem_addr_cache_next; ++i) {
10692 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10693 /* FIXME: free ret */
10694 ret = elem_addr_cache [i].method;
10700 if (elem_addr_cache_next >= elem_addr_cache_size) {
10701 int new_size = elem_addr_cache_size + 4;
10702 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10703 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10704 g_free (elem_addr_cache);
10705 elem_addr_cache = new_array;
10706 elem_addr_cache_size = new_size;
10708 elem_addr_cache [elem_addr_cache_next].rank = rank;
10709 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10710 elem_addr_cache [elem_addr_cache_next].method = ret;
10711 elem_addr_cache_next ++;
10713 mono_marshal_unlock ();
10718 * mono_marshal_get_array_accessor_wrapper:
10720 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10723 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10725 MonoMethodSignature *sig;
10726 MonoMethodBuilder *mb;
10730 MonoGenericContext *ctx = NULL;
10731 MonoMethod *orig_method = NULL;
10732 MonoGenericContainer *container = NULL;
10736 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10737 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10738 * FIXME: Use generic methods.
10745 g_assert_not_reached ();
10747 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10748 if ((res = mono_marshal_find_in_cache (cache, method)))
10752 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10755 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10757 #ifndef DISABLE_JIT
10758 /* Call the method */
10760 mono_mb_emit_ldarg (mb, 0);
10761 for (i = 0; i < sig->param_count; i++)
10762 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10766 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10767 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10769 mono_mb_emit_managed_call (mb, method, NULL);
10771 mono_mb_emit_byte (mb, CEE_RET);
10774 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10775 info->d.array_accessor.method = method;
10779 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10780 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10782 res = mono_mb_create_and_cache_full (cache, method,
10783 mb, sig, sig->param_count + 16,
10792 static inline void*
10793 mono_marshal_alloc_co_task_mem (size_t size)
10795 if ((gulong)size == 0)
10796 /* This returns a valid pointer for size 0 on MS.NET */
10799 return g_try_malloc ((gulong)size);
10804 * mono_marshal_alloc:
10807 mono_marshal_alloc (gsize size, MonoError *error)
10811 error_init (error);
10813 res = mono_marshal_alloc_co_task_mem (size);
10815 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10820 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10822 ves_icall_marshal_alloc (gsize size)
10825 void *ret = mono_marshal_alloc (size, &error);
10826 if (!mono_error_ok (&error)) {
10827 mono_error_set_pending_exception (&error);
10836 mono_marshal_free_co_task_mem (void *ptr)
10844 * mono_marshal_free:
10847 mono_marshal_free (gpointer ptr)
10849 mono_marshal_free_co_task_mem (ptr);
10853 * mono_marshal_free_array:
10856 mono_marshal_free_array (gpointer *ptr, int size)
10863 for (i = 0; i < size; i++)
10869 mono_marshal_string_to_utf16 (MonoString *s)
10871 return s ? mono_string_chars (s) : NULL;
10874 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10876 mono_marshal_string_to_utf16_copy (MonoString *s)
10882 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10883 if (!mono_error_ok (&error)) {
10884 mono_error_set_pending_exception (&error);
10887 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10888 res [mono_string_length (s)] = 0;
10894 * mono_marshal_set_last_error:
10896 * This function is invoked to set the last error value from a P/Invoke call
10897 * which has \c SetLastError set.
10900 mono_marshal_set_last_error (void)
10903 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10905 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10910 mono_marshal_set_last_error_windows (int error)
10913 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10918 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10919 gpointer dest, gint32 length)
10924 MONO_CHECK_ARG_NULL (src,);
10925 MONO_CHECK_ARG_NULL (dest,);
10927 if (src->obj.vtable->klass->rank != 1) {
10928 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10931 if (start_index < 0) {
10932 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10936 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10939 if (start_index + length > mono_array_length (src)) {
10940 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10944 element_size = mono_array_element_size (src->obj.vtable->klass);
10946 /* no references should be involved */
10947 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10949 memcpy (dest, source_addr, length * element_size);
10953 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10954 MonoArray *dest, gint32 length)
10959 MONO_CHECK_ARG_NULL (src,);
10960 MONO_CHECK_ARG_NULL (dest,);
10962 if (dest->obj.vtable->klass->rank != 1) {
10963 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10966 if (start_index < 0) {
10967 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10971 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10974 if (start_index + length > mono_array_length (dest)) {
10975 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10978 element_size = mono_array_element_size (dest->obj.vtable->klass);
10980 /* no references should be involved */
10981 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10983 memcpy (dest_addr, src, length * element_size);
10987 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr, MonoError *error)
10989 error_init (error);
10991 return MONO_HANDLE_CAST (MonoString, NULL_HANDLE);
10993 return mono_string_new_handle (mono_domain_get (), ptr, error);
10997 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
11000 MonoString *result = NULL;
11001 error_init (&error);
11003 mono_error_set_argument_null (&error, "ptr", "");
11005 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
11006 mono_error_set_pending_exception (&error);
11011 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
11014 MonoString *res = NULL;
11015 MonoDomain *domain = mono_domain_get ();
11025 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
11026 if (!mono_error_ok (&error)) {
11027 mono_error_set_pending_exception (&error);
11034 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
11037 MonoString *res = NULL;
11038 MonoDomain *domain = mono_domain_get ();
11040 error_init (&error);
11044 mono_error_set_argument_null (&error, "ptr", "");
11046 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
11049 if (!mono_error_ok (&error))
11050 mono_error_set_pending_exception (&error);
11055 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
11057 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
11061 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionTypeHandle rtype, MonoError *error)
11067 error_init (error);
11069 if (MONO_HANDLE_IS_NULL (rtype)) {
11070 mono_error_set_argument_null (error, "type", "");
11074 type = MONO_HANDLE_GETVAL (rtype, type);
11075 klass = mono_class_from_mono_type (type);
11076 if (!mono_class_init (klass)) {
11077 mono_error_set_for_class_failure (error, klass);
11081 layout = (mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK);
11083 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
11084 return sizeof (gpointer);
11085 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11086 mono_error_set_argument (error, "t", "Type %s cannot be marshaled as an unmanaged structure.", klass->name);
11090 return mono_class_native_size (klass, NULL);
11094 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
11097 MonoMethod *method;
11100 MONO_CHECK_ARG_NULL (obj,);
11101 MONO_CHECK_ARG_NULL (dst,);
11103 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
11107 pa [2] = &delete_old;
11109 mono_runtime_invoke_checked (method, NULL, pa, &error);
11110 if (!mono_error_ok (&error))
11111 mono_error_set_pending_exception (&error);
11115 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
11117 MonoMethod *method;
11120 error_init (error);
11122 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
11127 mono_runtime_invoke_checked (method, NULL, pa, error);
11131 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
11136 MONO_CHECK_ARG_NULL (src,);
11137 MONO_CHECK_ARG_NULL (dst,);
11139 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
11141 if (t->type == MONO_TYPE_VALUETYPE) {
11142 MonoException *exc;
11145 tmp = g_strdup_printf ("Destination is a boxed value type.");
11146 exc = mono_get_exception_argument ("dst", tmp);
11149 mono_set_pending_exception (exc);
11153 ptr_to_structure (src, dst, &error);
11154 if (!mono_error_ok (&error))
11155 mono_error_set_pending_exception (&error);
11159 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
11163 MonoDomain *domain = mono_domain_get ();
11168 MONO_CHECK_ARG_NULL (type, NULL);
11170 klass = mono_class_from_mono_type (type->type);
11171 if (!mono_class_init (klass)) {
11172 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11176 res = mono_object_new_checked (domain, klass, &error);
11177 if (!mono_error_ok (&error)) {
11178 mono_error_set_pending_exception (&error);
11182 ptr_to_structure (src, res, &error);
11183 if (!mono_error_ok (&error)) {
11184 mono_error_set_pending_exception (&error);
11192 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionTypeHandle ref_type, MonoStringHandle field_name, MonoError *error)
11194 error_init (error);
11195 if (MONO_HANDLE_IS_NULL (ref_type)) {
11196 mono_error_set_argument_null (error, "type", "");
11199 if (MONO_HANDLE_IS_NULL (field_name)) {
11200 mono_error_set_argument_null (error, "fieldName", "");
11204 char *fname = mono_string_handle_to_utf8 (field_name, error);
11205 return_val_if_nok (error, 0);
11207 MonoType *type = MONO_HANDLE_GETVAL (ref_type, type);
11208 MonoClass *klass = mono_class_from_mono_type (type);
11209 if (!mono_class_init (klass)) {
11210 mono_error_set_for_class_failure (error, klass);
11214 int match_index = -1;
11215 while (klass && match_index == -1) {
11216 MonoClassField* field;
11218 gpointer iter = NULL;
11219 while ((field = mono_class_get_fields (klass, &iter))) {
11220 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11222 if (!strcmp (fname, mono_field_get_name (field))) {
11229 if (match_index == -1)
11230 klass = klass->parent;
11235 if(match_index == -1) {
11236 /* Get back original class instance */
11237 klass = mono_class_from_mono_type (type);
11239 mono_error_set_argument (error, "fieldName", "Field passed in is not a marshaled member of the type %s", klass->name);
11243 MonoMarshalType *info = mono_marshal_load_type_info (klass);
11244 return info->fields [match_index].offset;
11249 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11252 char *ret = mono_string_to_utf8_checked (string, &error);
11253 mono_error_set_pending_exception (&error);
11258 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11260 if (string == NULL)
11263 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
11265 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11266 res [mono_string_length (string)] = 0;
11270 #endif /* !HOST_WIN32 */
11273 mono_struct_delete_old (MonoClass *klass, char *ptr)
11275 MonoMarshalType *info;
11278 info = mono_marshal_load_type_info (klass);
11280 for (i = 0; i < info->num_fields; i++) {
11281 MonoMarshalConv conv;
11282 MonoType *ftype = info->fields [i].field->type;
11285 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11288 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11289 klass->unicode, &conv);
11291 cpos = ptr + info->fields [i].offset;
11294 case MONO_MARSHAL_CONV_NONE:
11295 if (MONO_TYPE_ISSTRUCT (ftype)) {
11296 mono_struct_delete_old (ftype->data.klass, cpos);
11300 case MONO_MARSHAL_CONV_STR_LPWSTR:
11301 /* We assume this field points inside a MonoString */
11303 case MONO_MARSHAL_CONV_STR_LPTSTR:
11304 #ifdef TARGET_WIN32
11305 /* We assume this field points inside a MonoString
11309 case MONO_MARSHAL_CONV_STR_LPSTR:
11310 case MONO_MARSHAL_CONV_STR_BSTR:
11311 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11312 case MONO_MARSHAL_CONV_STR_TBSTR:
11313 case MONO_MARSHAL_CONV_STR_UTF8STR:
11314 mono_marshal_free (*(gpointer *)cpos);
11324 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11328 MONO_CHECK_ARG_NULL (src,);
11329 MONO_CHECK_ARG_NULL (type,);
11331 klass = mono_class_from_mono_type (type->type);
11332 if (!mono_class_init (klass)) {
11333 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11337 mono_struct_delete_old (klass, (char *)src);
11341 static inline void *
11342 mono_marshal_alloc_hglobal (size_t size)
11344 return g_try_malloc (size);
11349 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11352 size_t s = (size_t)size;
11355 /* This returns a valid pointer for size 0 on MS.NET */
11358 res = mono_marshal_alloc_hglobal (s);
11361 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11369 static inline gpointer
11370 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11372 return g_try_realloc (ptr, size);
11377 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11380 size_t s = (size_t)size;
11383 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11387 res = mono_marshal_realloc_hglobal (ptr, s);
11390 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11399 mono_marshal_free_hglobal (gpointer ptr)
11407 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11409 mono_marshal_free_hglobal (ptr);
11413 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11415 void *res = mono_marshal_alloc_co_task_mem (size);
11418 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11425 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11427 void *res = mono_marshal_alloc_co_task_mem (size);
11430 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11437 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11439 mono_marshal_free_co_task_mem (ptr);
11444 static inline gpointer
11445 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11447 return g_try_realloc (ptr, (gulong)size);
11452 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11454 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11457 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11464 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11466 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11470 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionTypeHandle type, MonoError *error)
11472 error_init (error);
11473 MonoClass *klass = mono_type_get_class (MONO_HANDLE_GETVAL (type, type));
11474 if (!mono_class_init (klass)) {
11475 mono_error_set_for_class_failure (error, klass);
11479 return mono_ftnptr_to_delegate_handle (klass, ftn, error);
11483 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegateHandle delegate, MonoError *error)
11485 error_init (error);
11486 return mono_delegate_handle_to_ftnptr (delegate, error);
11490 * mono_marshal_is_loading_type_info:
11492 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11496 mono_marshal_is_loading_type_info (MonoClass *klass)
11498 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11500 return g_slist_find (loads_list, klass) != NULL;
11504 * mono_marshal_load_type_info:
11506 * Initialize \c klass::marshal_info using information from metadata. This function can
11507 * recursively call itself, and the caller is responsible to avoid that by calling
11508 * \c mono_marshal_is_loading_type_info beforehand.
11510 * LOCKING: Acquires the loader lock.
11513 mono_marshal_load_type_info (MonoClass* klass)
11516 guint32 native_size = 0, min_align = 1, packing;
11517 MonoMarshalType *info;
11518 MonoClassField* field;
11521 GSList *loads_list;
11523 g_assert (klass != NULL);
11525 info = mono_class_get_marshal_info (klass);
11529 if (!klass->inited)
11530 mono_class_init (klass);
11532 info = mono_class_get_marshal_info (klass);
11537 * This function can recursively call itself, so we keep the list of classes which are
11538 * under initialization in a TLS list.
11540 g_assert (!mono_marshal_is_loading_type_info (klass));
11541 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11542 loads_list = g_slist_prepend (loads_list, klass);
11543 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11546 while ((field = mono_class_get_fields (klass, &iter))) {
11547 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11549 if (mono_field_is_deleted (field))
11554 layout = mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK;
11556 /* The mempool is protected by the loader lock */
11557 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11558 info->num_fields = count;
11560 /* Try to find a size for this type in metadata */
11561 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11563 if (klass->parent) {
11564 int parent_size = mono_class_native_size (klass->parent, NULL);
11566 /* Add parent size to real size */
11567 native_size += parent_size;
11568 info->native_size = parent_size;
11571 packing = klass->packing_size ? klass->packing_size : 8;
11574 while ((field = mono_class_get_fields (klass, &iter))) {
11578 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11581 if (mono_field_is_deleted (field))
11583 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11584 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11585 NULL, NULL, &info->fields [j].mspec);
11587 info->fields [j].field = field;
11589 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11590 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11591 /* This field is a hack inserted by MCS to empty structures */
11596 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11597 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11598 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11599 &align, TRUE, klass->unicode);
11600 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11601 min_align = MAX (align, min_align);
11602 info->fields [j].offset = info->native_size;
11603 info->fields [j].offset += align - 1;
11604 info->fields [j].offset &= ~(align - 1);
11605 info->native_size = info->fields [j].offset + size;
11607 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11608 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11609 &align, TRUE, klass->unicode);
11610 min_align = MAX (align, min_align);
11611 info->fields [j].offset = field->offset - sizeof (MonoObject);
11612 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11618 if (klass->byval_arg.type == MONO_TYPE_PTR)
11619 info->native_size = sizeof (gpointer);
11621 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11622 info->native_size = MAX (native_size, info->native_size);
11624 * If the provided Size is equal or larger than the calculated size, and there
11625 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11627 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11628 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11631 min_align = MIN (min_align, packing);
11635 if (info->native_size & (min_align - 1)) {
11636 info->native_size += min_align - 1;
11637 info->native_size &= ~(min_align - 1);
11640 info->min_align = min_align;
11642 /* Update the class's blittable info, if the layouts don't match */
11643 if (info->native_size != mono_class_value_size (klass, NULL))
11644 klass->blittable = FALSE;
11646 /* If this is an array type, ensure that we have element info */
11647 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11648 mono_marshal_load_type_info (klass->element_class);
11651 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11652 loads_list = g_slist_remove (loads_list, klass);
11653 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11655 mono_marshal_lock ();
11656 MonoMarshalType *info2 = mono_class_get_marshal_info (klass);
11658 /*We do double-checking locking on marshal_info */
11659 mono_memory_barrier ();
11660 mono_class_set_marshal_info (klass, info);
11661 ++class_marshal_info_count;
11664 mono_marshal_unlock ();
11670 * mono_class_native_size:
11671 * \param klass a class
11672 * \returns the native size of an object instance (when marshaled
11673 * to unmanaged code)
11676 mono_class_native_size (MonoClass *klass, guint32 *align)
11678 MonoMarshalType *info = mono_class_get_marshal_info (klass);
11680 if (mono_marshal_is_loading_type_info (klass)) {
11685 mono_marshal_load_type_info (klass);
11687 info = mono_class_get_marshal_info (klass);
11691 *align = info->min_align;
11693 return info->native_size;
11697 * mono_type_native_stack_size:
11698 * @t: the type to return the size it uses on the stack
11700 * Returns: the number of bytes required to hold an instance of this
11701 * type on the native stack
11704 mono_type_native_stack_size (MonoType *t, guint32 *align)
11708 g_assert (t != NULL);
11714 *align = sizeof (gpointer);
11715 return sizeof (gpointer);
11719 case MONO_TYPE_BOOLEAN:
11720 case MONO_TYPE_CHAR:
11731 case MONO_TYPE_STRING:
11732 case MONO_TYPE_OBJECT:
11733 case MONO_TYPE_CLASS:
11734 case MONO_TYPE_SZARRAY:
11735 case MONO_TYPE_PTR:
11736 case MONO_TYPE_FNPTR:
11737 case MONO_TYPE_ARRAY:
11738 *align = sizeof (gpointer);
11739 return sizeof (gpointer);
11744 *align = MONO_ABI_ALIGNOF (double);
11748 *align = MONO_ABI_ALIGNOF (gint64);
11750 case MONO_TYPE_GENERICINST:
11751 if (!mono_type_generic_inst_is_valuetype (t)) {
11752 *align = sizeof (gpointer);
11753 return sizeof (gpointer);
11756 case MONO_TYPE_TYPEDBYREF:
11757 case MONO_TYPE_VALUETYPE: {
11759 MonoClass *klass = mono_class_from_mono_type (t);
11761 if (klass->enumtype)
11762 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11764 size = mono_class_native_size (klass, align);
11765 *align = *align + 3;
11775 g_error ("type 0x%02x unknown", t->type);
11781 * mono_marshal_type_size:
11784 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11785 gboolean as_field, gboolean unicode)
11787 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11790 switch (native_type) {
11791 case MONO_NATIVE_BOOLEAN:
11794 case MONO_NATIVE_I1:
11795 case MONO_NATIVE_U1:
11798 case MONO_NATIVE_I2:
11799 case MONO_NATIVE_U2:
11800 case MONO_NATIVE_VARIANTBOOL:
11803 case MONO_NATIVE_I4:
11804 case MONO_NATIVE_U4:
11805 case MONO_NATIVE_ERROR:
11808 case MONO_NATIVE_I8:
11809 case MONO_NATIVE_U8:
11810 *align = MONO_ABI_ALIGNOF (gint64);
11812 case MONO_NATIVE_R4:
11815 case MONO_NATIVE_R8:
11816 *align = MONO_ABI_ALIGNOF (double);
11818 case MONO_NATIVE_INT:
11819 case MONO_NATIVE_UINT:
11820 case MONO_NATIVE_LPSTR:
11821 case MONO_NATIVE_LPWSTR:
11822 case MONO_NATIVE_LPTSTR:
11823 case MONO_NATIVE_BSTR:
11824 case MONO_NATIVE_ANSIBSTR:
11825 case MONO_NATIVE_TBSTR:
11826 case MONO_NATIVE_UTF8STR:
11827 case MONO_NATIVE_LPARRAY:
11828 case MONO_NATIVE_SAFEARRAY:
11829 case MONO_NATIVE_IUNKNOWN:
11830 case MONO_NATIVE_IDISPATCH:
11831 case MONO_NATIVE_INTERFACE:
11832 case MONO_NATIVE_ASANY:
11833 case MONO_NATIVE_FUNC:
11834 case MONO_NATIVE_LPSTRUCT:
11835 *align = MONO_ABI_ALIGNOF (gpointer);
11836 return sizeof (gpointer);
11837 case MONO_NATIVE_STRUCT:
11838 klass = mono_class_from_mono_type (type);
11839 if (klass == mono_defaults.object_class &&
11840 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11844 return mono_class_native_size (klass, align);
11845 case MONO_NATIVE_BYVALTSTR: {
11846 int esize = unicode ? 2: 1;
11849 return mspec->data.array_data.num_elem * esize;
11851 case MONO_NATIVE_BYVALARRAY: {
11852 // FIXME: Have to consider ArraySubType
11854 klass = mono_class_from_mono_type (type);
11855 if (klass->element_class == mono_defaults.char_class) {
11856 esize = unicode ? 2 : 1;
11859 esize = mono_class_native_size (klass->element_class, align);
11862 return mspec->data.array_data.num_elem * esize;
11864 case MONO_NATIVE_CUSTOM:
11865 *align = sizeof (gpointer);
11866 return sizeof (gpointer);
11868 case MONO_NATIVE_CURRENCY:
11869 case MONO_NATIVE_VBBYREFSTR:
11871 g_error ("native type %02x not implemented", native_type);
11874 g_assert_not_reached ();
11879 * mono_marshal_asany:
11880 * This is a JIT icall, it sets the pending exception and returns NULL on error.
11883 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11892 t = &o->vtable->klass->byval_arg;
11896 case MONO_TYPE_PTR:
11899 case MONO_TYPE_BOOLEAN:
11902 case MONO_TYPE_CHAR:
11907 return mono_object_unbox (o);
11909 case MONO_TYPE_STRING:
11910 switch (string_encoding) {
11911 case MONO_NATIVE_LPWSTR:
11912 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11913 case MONO_NATIVE_LPSTR:
11914 case MONO_NATIVE_UTF8STR:
11915 // Same code path, because in Mono, we treated strings as Utf8
11916 return mono_string_to_utf8str ((MonoString*)o);
11918 g_warning ("marshaling conversion %d not implemented", string_encoding);
11919 g_assert_not_reached ();
11922 case MONO_TYPE_CLASS:
11923 case MONO_TYPE_VALUETYPE: {
11924 MonoMethod *method;
11927 MonoBoolean delete_old = FALSE;
11929 klass = t->data.klass;
11931 if (mono_class_is_auto_layout (klass))
11934 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11935 return mono_object_unbox (o);
11937 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11938 if (!mono_error_ok (&error)) {
11939 mono_error_set_pending_exception (&error);
11943 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11944 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11948 pa [2] = &delete_old;
11950 mono_runtime_invoke_checked (method, NULL, pa, &error);
11951 if (!mono_error_ok (&error)) {
11952 mono_error_set_pending_exception (&error);
11962 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11967 * mono_marshal_free_asany:
11968 * This is a JIT icall, it sets the pending exception
11971 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11980 t = &o->vtable->klass->byval_arg;
11982 case MONO_TYPE_STRING:
11983 switch (string_encoding) {
11984 case MONO_NATIVE_LPWSTR:
11985 case MONO_NATIVE_LPSTR:
11986 case MONO_NATIVE_UTF8STR:
11987 mono_marshal_free (ptr);
11990 g_warning ("marshaling conversion %d not implemented", string_encoding);
11991 g_assert_not_reached ();
11994 case MONO_TYPE_CLASS:
11995 case MONO_TYPE_VALUETYPE: {
11996 klass = t->data.klass;
11998 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
12001 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
12002 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
12008 mono_runtime_invoke_checked (method, NULL, pa, &error);
12009 if (!mono_error_ok (&error)) {
12010 mono_error_set_pending_exception (&error);
12015 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
12016 mono_struct_delete_old (klass, (char *)ptr);
12019 mono_marshal_free (ptr);
12028 * mono_marshal_get_generic_array_helper:
12030 * Return a wrapper which is used to implement the implicit interfaces on arrays.
12031 * The wrapper routes calls to METHOD, which is one of the InternalArray_ methods in Array.
12034 mono_marshal_get_generic_array_helper (MonoClass *klass, gchar *name, MonoMethod *method)
12036 MonoMethodSignature *sig, *csig;
12037 MonoMethodBuilder *mb;
12042 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
12043 mb->method->slot = -1;
12045 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
12046 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
12048 sig = mono_method_signature (method);
12049 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
12050 csig->generic_param_count = 0;
12052 #ifndef DISABLE_JIT
12053 mono_mb_emit_ldarg (mb, 0);
12054 for (i = 0; i < csig->param_count; i++)
12055 mono_mb_emit_ldarg (mb, i + 1);
12056 mono_mb_emit_managed_call (mb, method, NULL);
12057 mono_mb_emit_byte (mb, CEE_RET);
12059 /* We can corlib internal methods */
12060 mb->skip_visibility = TRUE;
12062 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
12063 info->d.generic_array_helper.method = method;
12064 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
12072 * The mono_win32_compat_* functions are implementations of inline
12073 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
12074 * although not exported by kernel32.
12076 * We map the appropiate kernel32 entries to these functions using
12077 * dllmaps declared in the global etc/mono/config.
12081 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
12083 if (!dest || !source)
12086 memcpy (dest, source, length);
12090 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
12092 memset (dest, fill, length);
12096 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
12098 if (!dest || !source)
12101 memmove (dest, source, length);
12105 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
12107 memset (dest, 0, length);
12111 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12116 for (i = 0; i < len; ++i)
12120 g_assert (i < len);
12123 while (byte && !(byte & 1))
12125 g_assert (byte == 1);
12128 *bitmask = buf [i];
12132 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12134 MonoMethodBuilder *mb;
12135 MonoMethodSignature *sig, *csig;
12136 MonoExceptionClause *clause;
12141 int i, param_count, sig_size, pos_leave;
12145 // FIXME: we need to store the exception into a MonoHandle
12146 g_assert (!mono_threads_is_coop_enabled ());
12148 klass = method->klass;
12149 image = method->klass->image;
12151 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12153 if ((res = mono_marshal_find_in_cache (cache, method)))
12156 sig = mono_method_signature (method);
12157 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12159 /* add "this" and exception param */
12160 param_count = sig->param_count + sig->hasthis + 1;
12162 /* dup & extend signature */
12163 csig = mono_metadata_signature_alloc (image, param_count);
12164 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
12165 memcpy (csig, sig, sig_size);
12166 csig->param_count = param_count;
12169 csig->call_convention = MONO_CALL_DEFAULT;
12171 if (sig->hasthis) {
12173 csig->params [0] = &klass->byval_arg;
12174 /* move params up by one */
12175 for (i = 0; i < sig->param_count; i++)
12176 csig->params [i + 1] = sig->params [i];
12179 /* setup exception param as byref+[out] */
12180 csig->params [param_count - 1] = mono_metadata_type_dup (image,
12181 &mono_defaults.exception_class->byval_arg);
12182 csig->params [param_count - 1]->byref = 1;
12183 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12185 /* convert struct return to object */
12186 if (MONO_TYPE_ISSTRUCT (sig->ret))
12187 csig->ret = &mono_defaults.object_class->byval_arg;
12189 #ifndef DISABLE_JIT
12190 /* local 0 (temp for exception object) */
12191 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12193 /* local 1 (temp for result) */
12194 if (!MONO_TYPE_IS_VOID (sig->ret))
12195 mono_mb_add_local (mb, sig->ret);
12197 /* clear exception arg */
12198 mono_mb_emit_ldarg (mb, param_count - 1);
12199 mono_mb_emit_byte (mb, CEE_LDNULL);
12200 mono_mb_emit_byte (mb, CEE_STIND_REF);
12203 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12204 clause->try_offset = mono_mb_get_label (mb);
12206 /* push method's args */
12207 for (i = 0; i < param_count - 1; i++) {
12211 mono_mb_emit_ldarg (mb, i);
12213 /* get the byval type of the param */
12214 klass = mono_class_from_mono_type (csig->params [i]);
12215 type = &klass->byval_arg;
12217 /* unbox struct args */
12218 if (MONO_TYPE_ISSTRUCT (type)) {
12219 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12221 /* byref args & and the "this" arg must remain a ptr.
12222 Otherwise make a copy of the value type */
12223 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12224 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12226 csig->params [i] = &mono_defaults.object_class->byval_arg;
12231 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12232 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12234 mono_mb_emit_op (mb, CEE_CALL, method);
12236 /* save result at local 1 */
12237 if (!MONO_TYPE_IS_VOID (sig->ret))
12238 mono_mb_emit_stloc (mb, 1);
12240 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12243 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12244 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12245 clause->data.catch_class = mono_defaults.object_class;
12247 clause->handler_offset = mono_mb_get_label (mb);
12249 /* store exception at local 0 */
12250 mono_mb_emit_stloc (mb, 0);
12251 mono_mb_emit_ldarg (mb, param_count - 1);
12252 mono_mb_emit_ldloc (mb, 0);
12253 mono_mb_emit_byte (mb, CEE_STIND_REF);
12254 mono_mb_emit_branch (mb, CEE_LEAVE);
12256 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12258 mono_mb_set_clauses (mb, 1, clause);
12260 mono_mb_patch_branch (mb, pos_leave);
12263 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12264 mono_mb_emit_ldloc (mb, 1);
12266 /* box the return value */
12267 if (MONO_TYPE_ISSTRUCT (sig->ret))
12268 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12271 mono_mb_emit_byte (mb, CEE_RET);
12274 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12281 * mono_marshal_free_dynamic_wrappers:
12283 * Free wrappers of the dynamic method METHOD.
12286 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12288 MonoImage *image = method->klass->image;
12290 g_assert (method_is_dynamic (method));
12292 /* This could be called during shutdown */
12293 if (marshal_mutex_initialized)
12294 mono_marshal_lock ();
12296 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12297 * they could be shared with other methods ?
12299 if (image->wrapper_caches.runtime_invoke_direct_cache)
12300 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
12301 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12302 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12303 // FIXME: Need to clear the caches in other images as well
12304 if (image->delegate_bound_static_invoke_cache)
12305 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12307 if (marshal_mutex_initialized)
12308 mono_marshal_unlock ();
12312 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12314 g_assert (ftnptr_eh_callback);
12315 ftnptr_eh_callback (gchandle);
12319 ftnptr_eh_callback_default (guint32 gchandle)
12321 MonoException *exc;
12322 gpointer stackdata;
12324 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12326 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12328 mono_gchandle_free (gchandle);
12330 mono_raise_exception (exc);
12334 * mono_install_ftnptr_eh_callback:
12336 * Install a callback that should be called when there is a managed exception
12337 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12338 * managed exception to a native exception, to properly unwind the native
12339 * stack; this native exception will then be converted back to a managed
12340 * exception in their managed-to-native wrapper.
12343 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12345 ftnptr_eh_callback = callback;
12348 static MonoThreadInfo*
12349 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12351 MonoThreadInfo *info = mono_thread_info_current ();
12353 mono_stack_mark_init (info, stackmark);
12354 error_init (error);
12359 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12361 mono_stack_mark_pop (info, stackmark);
12362 if (G_UNLIKELY (!is_ok (error)))
12363 mono_error_set_pending_exception (error);
12366 static MonoObjectHandle
12367 mono_icall_handle_new (gpointer rawobj)
12369 #ifdef MONO_HANDLE_TRACK_OWNER
12370 return mono_handle_new (rawobj, "<marshal args>");
12372 return mono_handle_new (rawobj);
12376 static MonoObjectHandle
12377 mono_icall_handle_new_interior (gpointer rawobj)
12379 #ifdef MONO_HANDLE_TRACK_OWNER
12380 return mono_handle_new_interior (rawobj, "<marshal args>");
12382 return mono_handle_new_interior (rawobj);