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_full (gpointer rawobj, MonoBoolean interior);
227 /* Lazy class loading functions */
228 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, "System.Text", "StringBuilder");
229 static GENERATE_GET_CLASS_WITH_CACHE (date_time, "System", "DateTime");
230 static GENERATE_GET_CLASS_WITH_CACHE (fixed_buffer_attribute, "System.Runtime.CompilerServices", "FixedBufferAttribute");
231 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
232 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, "System.Runtime.InteropServices", "ICustomMarshaler");
234 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
235 static MonoMethod *sh_dangerous_add_ref;
236 static MonoMethod *sh_dangerous_release;
241 sh_dangerous_add_ref = mono_class_get_method_from_name (
242 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
243 sh_dangerous_release = mono_class_get_method_from_name (
244 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
248 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
250 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
252 mono_register_jit_icall (func, name, sig, no_wrapper);
256 register_icall_no_wrapper (gpointer func, const char *name, const char *sigstr)
258 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
260 mono_register_jit_icall (func, name, sig, TRUE);
264 mono_signature_no_pinvoke (MonoMethod *method)
266 MonoMethodSignature *sig = mono_method_signature (method);
268 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
269 sig->pinvoke = FALSE;
276 mono_marshal_init_tls (void)
278 mono_native_tls_alloc (&last_error_tls_id, NULL);
279 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
283 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
288 /* This is called from stelemref so it is expected to succeed */
290 if (mono_class_is_interface (klass)) {
291 MonoVTable *vt = obj->vtable;
294 mono_class_init (klass);
296 if (MONO_VTABLE_IMPLEMENTS_INTERFACE (vt, klass->interface_id))
301 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
302 mono_error_set_pending_exception (&error);
307 ves_icall_mono_string_from_utf16 (gunichar2 *data)
310 MonoString *result = mono_string_from_utf16_checked (data, &error);
311 mono_error_set_pending_exception (&error);
316 ves_icall_mono_string_to_utf8 (MonoString *str)
319 char *result = mono_string_to_utf8_checked (str, &error);
320 mono_error_set_pending_exception (&error);
325 ves_icall_string_new_wrapper (const char *text)
329 MonoString *res = mono_string_new_checked (mono_domain_get (), text, &error);
330 mono_error_set_pending_exception (&error);
338 mono_marshal_init (void)
340 static gboolean module_initialized = FALSE;
342 if (!module_initialized) {
343 module_initialized = TRUE;
344 mono_os_mutex_init_recursive (&marshal_mutex);
345 marshal_mutex_initialized = TRUE;
347 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
348 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
349 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
350 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
351 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
352 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
353 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
354 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
355 register_icall (ves_icall_string_new_wrapper, "ves_icall_string_new_wrapper", "obj ptr", FALSE);
356 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
357 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
358 register_icall (mono_string_to_utf8str, "mono_string_to_utf8str", "ptr obj", FALSE);
359 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
360 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
361 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
362 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
363 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
364 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
365 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
366 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
367 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
368 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
369 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
370 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
371 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
372 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
373 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr ptr", FALSE);
374 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
375 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
376 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
377 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
378 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
379 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
380 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
381 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
382 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
383 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
384 register_icall (g_free, "g_free", "void ptr", FALSE);
385 register_icall_no_wrapper (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr");
386 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
387 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
388 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
389 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
390 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
391 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
392 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
393 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
394 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
395 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
396 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
397 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
398 register_icall (mono_icall_start, "mono_icall_start", "ptr ptr ptr", TRUE);
399 register_icall (mono_icall_end, "mono_icall_end", "void ptr ptr ptr", TRUE);
400 register_icall (mono_icall_handle_new_full, "mono_icall_handle_new_full", "ptr ptr bool", TRUE);
402 mono_cominterop_init ();
403 mono_remoting_init ();
405 mono_counters_register ("MonoClass::class_marshal_info_count count",
406 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_marshal_info_count);
412 mono_marshal_cleanup (void)
414 mono_cominterop_cleanup ();
416 mono_native_tls_free (load_type_info_tls_id);
417 mono_native_tls_free (last_error_tls_id);
418 mono_os_mutex_destroy (&marshal_mutex);
419 marshal_mutex_initialized = FALSE;
423 mono_marshal_lock_internal (void)
425 mono_marshal_lock ();
429 mono_marshal_unlock_internal (void)
431 mono_marshal_unlock ();
434 /* This is a JIT icall, it sets the pending exception and return NULL on error */
436 mono_delegate_to_ftnptr (MonoDelegate *delegate_raw)
438 HANDLE_FUNCTION_ENTER ();
440 MONO_HANDLE_DCL (MonoDelegate, delegate);
441 gpointer result = mono_delegate_handle_to_ftnptr (delegate, &error);
442 mono_error_set_pending_exception (&error);
443 HANDLE_FUNCTION_RETURN_VAL (result);
447 mono_delegate_handle_to_ftnptr (MonoDelegateHandle delegate, MonoError *error)
449 HANDLE_FUNCTION_ENTER ();
450 gpointer result = NULL;
452 MonoMethod *method, *wrapper;
454 uint32_t target_handle = 0;
456 if (MONO_HANDLE_IS_NULL (delegate))
459 if (MONO_HANDLE_GETVAL (delegate, delegate_trampoline)) {
460 result = MONO_HANDLE_GETVAL (delegate, delegate_trampoline);
464 klass = mono_handle_class (delegate);
465 g_assert (klass->delegate);
467 method = MONO_HANDLE_GETVAL (delegate, method);
468 if (MONO_HANDLE_GETVAL (delegate, method_is_virtual)) {
469 MonoObjectHandle delegate_target = MONO_HANDLE_NEW_GET (MonoObject, delegate, target);
470 method = mono_object_handle_get_virtual_method (delegate_target, method, error);
475 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
476 const char *exc_class, *exc_arg;
479 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
481 g_assert (exc_class);
482 mono_error_set_generic_error (error, "System", exc_class, "%s", exc_arg);
489 MonoObjectHandle delegate_target = MONO_HANDLE_NEW_GET (MonoObject, delegate, target);
490 if (!MONO_HANDLE_IS_NULL (delegate_target)) {
491 /* Produce a location which can be embedded in JITted code */
492 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 */
495 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle, error);
499 MONO_HANDLE_SETVAL (delegate, delegate_trampoline, gpointer, mono_compile_method_checked (wrapper, error));
503 // Add the delegate to the delegate hash table
504 delegate_hash_table_add (delegate);
506 /* when the object is collected, collect the dynamic method, too */
507 mono_object_register_finalizer ((MonoObject*) MONO_HANDLE_RAW (delegate));
509 result = MONO_HANDLE_GETVAL (delegate, delegate_trampoline);
512 if (!is_ok (error) && target_handle != 0)
513 mono_gchandle_free (target_handle);
514 HANDLE_FUNCTION_RETURN_VAL (result);
518 * this hash table maps from a delegate trampoline object to a weak reference
519 * of the delegate. As an optimizations with a non-moving GC we store the
520 * object pointer itself, otherwise we use a GC handle.
522 static GHashTable *delegate_hash_table;
525 delegate_hash_table_new (void) {
526 return g_hash_table_new (NULL, NULL);
530 delegate_hash_table_remove (MonoDelegate *d)
532 guint32 gchandle = 0;
534 mono_marshal_lock ();
535 if (delegate_hash_table == NULL)
536 delegate_hash_table = delegate_hash_table_new ();
537 if (mono_gc_is_moving ())
538 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
539 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
540 mono_marshal_unlock ();
541 if (gchandle && mono_gc_is_moving ())
542 mono_gchandle_free (gchandle);
546 delegate_hash_table_add (MonoDelegateHandle d)
549 guint32 old_gchandle;
551 mono_marshal_lock ();
552 if (delegate_hash_table == NULL)
553 delegate_hash_table = delegate_hash_table_new ();
554 gpointer delegate_trampoline = MONO_HANDLE_GETVAL (d, delegate_trampoline);
555 if (mono_gc_is_moving ()) {
556 gchandle = mono_gchandle_new_weakref ((MonoObject*) MONO_HANDLE_RAW (d), FALSE);
557 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, delegate_trampoline));
558 g_hash_table_insert (delegate_hash_table, delegate_trampoline, GUINT_TO_POINTER (gchandle));
560 mono_gchandle_free (old_gchandle);
562 g_hash_table_insert (delegate_hash_table, delegate_trampoline, MONO_HANDLE_RAW (d));
564 mono_marshal_unlock ();
568 * mono_marshal_use_aot_wrappers:
570 * Instructs this module to use AOT compatible wrappers.
573 mono_marshal_use_aot_wrappers (gboolean use)
575 use_aot_wrappers = use;
579 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
582 MonoCustomAttrInfo *cinfo;
583 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
585 /* The attribute is only available in Net 2.0 */
586 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
588 * The pinvoke attributes are stored in a real custom attribute so we have to
591 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
592 if (!mono_error_ok (&error)) {
593 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
594 mono_error_cleanup (&error);
596 if (cinfo && !mono_runtime_get_no_exec ()) {
597 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
599 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
601 if (!mono_error_ok (&error)) {
602 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
603 mono_error_cleanup (&error);
607 mono_custom_attrs_free (cinfo);
612 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
614 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
616 HANDLE_FUNCTION_ENTER ();
618 MonoDelegateHandle result = mono_ftnptr_to_delegate_handle (klass, ftn, &error);
619 mono_error_set_pending_exception (&error);
620 HANDLE_FUNCTION_RETURN_OBJ (result);
624 mono_ftnptr_to_delegate_handle (MonoClass *klass, gpointer ftn, MonoError *error)
626 HANDLE_FUNCTION_ENTER ();
629 MonoDelegateHandle d = MONO_HANDLE_NEW (MonoDelegate, NULL);
634 mono_marshal_lock ();
635 if (delegate_hash_table == NULL)
636 delegate_hash_table = delegate_hash_table_new ();
638 if (mono_gc_is_moving ()) {
639 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
640 mono_marshal_unlock ();
642 MONO_HANDLE_ASSIGN (d, MONO_HANDLE_CAST (MonoDelegate, mono_gchandle_get_target_handle (gchandle)));
644 MONO_HANDLE_ASSIGN (d, MONO_HANDLE_NEW (MonoDelegate, g_hash_table_lookup (delegate_hash_table, ftn)));
645 mono_marshal_unlock ();
647 if (MONO_HANDLE_IS_NULL (d)) {
648 /* This is a native function, so construct a delegate for it */
649 MonoMethodSignature *sig;
651 MonoMarshalSpec **mspecs;
652 MonoMethod *invoke = mono_get_delegate_invoke (klass);
653 MonoMethodPInvoke piinfo;
654 MonoObjectHandle this_obj;
657 if (use_aot_wrappers) {
658 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
659 this_obj = MONO_HANDLE_NEW (MonoObject, mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, error));
663 memset (&piinfo, 0, sizeof (piinfo));
664 parse_unmanaged_function_pointer_attr (klass, &piinfo);
666 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
667 mono_method_get_marshal_info (invoke, mspecs);
668 /* Freed below so don't alloc from mempool */
669 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
672 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
673 this_obj = MONO_HANDLE_NEW (MonoObject, NULL);
675 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
677 mono_metadata_free_marshal_spec (mspecs [i]);
682 MONO_HANDLE_ASSIGN (d, MONO_HANDLE_NEW (MonoDelegate, mono_object_new_checked (mono_domain_get (), klass, error)));
685 gpointer compiled_ptr = mono_compile_method_checked (wrapper, error);
689 mono_delegate_ctor_with_method (MONO_HANDLE_CAST (MonoObject, d), this_obj, compiled_ptr, wrapper, error);
694 g_assert (!MONO_HANDLE_IS_NULL (d));
695 if (MONO_HANDLE_DOMAIN (d) != mono_domain_get ())
696 mono_error_set_not_supported (error, "Delegates cannot be marshalled from native code into a domain other than their home domain");
699 HANDLE_FUNCTION_RETURN_REF (MonoDelegate, d);
703 mono_delegate_free_ftnptr (MonoDelegate *delegate)
708 delegate_hash_table_remove (delegate);
710 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
712 if (!delegate->target) {
713 /* The wrapper method is shared between delegates -> no need to free it */
722 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
725 method = mono_jit_info_get_method (ji);
726 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
728 /*the target gchandle is the first entry after size and the wrapper itself.*/
729 gchandle = GPOINTER_TO_UINT (method_data [2]);
732 mono_gchandle_free (gchandle);
734 mono_runtime_free_method (mono_object_domain (delegate), method);
738 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
740 mono_string_from_byvalstr (const char *data, int max_len)
743 MonoDomain *domain = mono_domain_get ();
749 while (len < max_len - 1 && data [len])
752 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
753 mono_error_set_pending_exception (&error);
757 /* This is a JIT icall, it sets the pending exception and return NULL on error */
759 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
762 MonoString *res = NULL;
763 MonoDomain *domain = mono_domain_get ();
769 while (data [len]) len++;
771 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
772 if (!mono_error_ok (&error)) {
773 mono_error_set_pending_exception (&error);
780 mono_array_to_savearray (MonoArray *array)
785 g_assert_not_reached ();
790 mono_array_to_lparray (MonoArray *array)
793 gpointer *nativeArray = NULL;
794 int nativeArraySize = 0;
804 klass = array->obj.vtable->klass;
806 switch (klass->element_class->byval_arg.type) {
808 g_assert_not_reached ();
810 case MONO_TYPE_CLASS:
811 nativeArraySize = array->max_length;
812 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
813 for(i = 0; i < nativeArraySize; ++i)
814 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
817 case MONO_TYPE_BOOLEAN:
830 case MONO_TYPE_VALUETYPE:
834 case MONO_TYPE_GENERICINST:
835 case MONO_TYPE_OBJECT:
836 case MONO_TYPE_ARRAY:
837 case MONO_TYPE_SZARRAY:
838 case MONO_TYPE_STRING:
840 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
841 g_assert_not_reached ();
844 return array->vector;
848 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
859 klass = array->obj.vtable->klass;
861 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
862 for(i = 0; i < array->max_length; ++i)
863 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
864 g_free (nativeArray);
870 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
872 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
874 if (elclass == mono_defaults.byte_class) {
875 GError *error = NULL;
879 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
882 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
886 g_error_free (error);
889 g_assert_not_reached ();
893 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
895 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
898 /* This is a JIT icall, it sets the pending exception and returns on error */
900 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
902 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
904 if (elclass == mono_defaults.byte_class) {
906 GError *error = NULL;
908 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
910 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
911 g_error_free (error);
915 memcpy (native_arr, as, MIN (strlen (as), elnum));
918 g_assert_not_reached ();
923 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
925 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
928 static MonoStringBuilder *
929 mono_string_builder_new (int starting_string_length)
931 static MonoClass *string_builder_class;
932 static MonoMethod *sb_ctor;
933 static void *args [1];
936 int initial_len = starting_string_length;
942 MonoMethodDesc *desc;
945 string_builder_class = mono_class_get_string_builder_class ();
946 g_assert (string_builder_class);
947 desc = mono_method_desc_new (":.ctor(int)", FALSE);
948 m = mono_method_desc_search_in_class (desc, string_builder_class);
950 mono_method_desc_free (desc);
951 mono_memory_barrier ();
955 // We make a new array in the _to_builder function, so this
956 // array will always be garbage collected.
957 args [0] = &initial_len;
959 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
960 mono_error_assert_ok (&error);
963 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
964 g_assert (exc == NULL);
965 mono_error_assert_ok (&error);
967 g_assert (sb->chunkChars->max_length >= initial_len);
973 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
975 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
976 gunichar2 *charSrc = (gunichar2 *)text;
977 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
979 sb->chunkLength = string_len;
985 mono_string_utf16_to_builder2 (gunichar2 *text)
991 for (len = 0; text [len] != 0; ++len);
993 MonoStringBuilder *sb = mono_string_builder_new (len);
994 mono_string_utf16_to_builder (sb, text);
1000 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
1005 GError *error = NULL;
1007 gunichar2* ut = g_utf8_to_utf16 (text, strlen (text), NULL, &copied, &error);
1008 int capacity = mono_string_builder_capacity (sb);
1010 if (copied > capacity)
1014 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
1015 mono_string_utf16_to_builder_copy (sb, ut, copied);
1017 g_error_free (error);
1023 mono_string_utf8_to_builder2 (char *text)
1028 int len = strlen (text);
1029 MonoStringBuilder *sb = mono_string_builder_new (len);
1030 mono_string_utf8_to_builder (sb, text);
1036 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
1042 for (len = 0; text [len] != 0; ++len);
1044 if (len > mono_string_builder_capacity (sb))
1045 len = mono_string_builder_capacity (sb);
1047 mono_string_utf16_to_builder_copy (sb, text, len);
1051 * mono_string_builder_to_utf8:
1052 * \param sb the string builder
1054 * Converts to utf8 the contents of the \c MonoStringBuilder .
1056 * \returns a utf8 string with the contents of the \c StringBuilder .
1058 * The return value must be released with mono_marshal_free.
1060 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1063 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
1066 GError *gerror = NULL;
1071 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
1073 guint str_len = mono_string_builder_string_length (sb);
1075 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
1078 g_error_free (gerror);
1079 mono_marshal_free (str_utf16);
1080 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1083 guint len = mono_string_builder_capacity (sb) + 1;
1084 gchar *res = (gchar *)mono_marshal_alloc (MAX (byte_count+1, len * sizeof (gchar)), &error);
1085 if (!mono_error_ok (&error)) {
1086 mono_marshal_free (str_utf16);
1088 mono_error_set_pending_exception (&error);
1092 memcpy (res, tmp, byte_count);
1093 res[byte_count] = '\0';
1095 mono_marshal_free (str_utf16);
1102 * mono_string_builder_to_utf16:
1103 * \param sb the string builder
1105 * Converts to utf16 the contents of the \c MonoStringBuilder .
1107 * Returns: a utf16 string with the contents of the \c StringBuilder .
1109 * The return value must be released with mono_marshal_free.
1111 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1114 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1121 g_assert (sb->chunkChars);
1123 guint len = mono_string_builder_capacity (sb);
1128 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1129 if (!mono_error_ok (&error)) {
1130 mono_error_set_pending_exception (&error);
1139 MonoStringBuilder* chunk = sb;
1141 if (chunk->chunkLength > 0) {
1142 // Check that we will not overrun our boundaries.
1143 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1145 if (chunk->chunkLength <= len) {
1146 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1148 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1151 len -= chunk->chunkLength;
1153 chunk = chunk->chunkPrevious;
1154 } while (chunk != NULL);
1160 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1162 mono_string_to_utf8str (MonoString *s)
1165 char *result = mono_string_to_utf8_checked (s, &error);
1166 mono_error_set_pending_exception (&error);
1172 mono_string_to_ansibstr (MonoString *string_obj)
1174 g_error ("UnmanagedMarshal.BStr is not implemented.");
1179 * mono_string_to_byvalstr:
1180 * \param dst Where to store the null-terminated utf8 decoded string.
1181 * \param src the \c MonoString to copy.
1182 * \param size the maximum number of bytes to copy.
1184 * Copies the \c MonoString pointed to by \p src as a utf8 string
1185 * into \p dst, it copies at most \p size bytes into the destination.
1188 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1194 g_assert (dst != NULL);
1195 g_assert (size > 0);
1197 memset (dst, 0, size);
1201 s = mono_string_to_utf8_checked (src, &error);
1202 if (mono_error_set_pending_exception (&error))
1204 len = MIN (size, strlen (s));
1207 memcpy (dst, s, len);
1212 * mono_string_to_byvalwstr:
1213 * \param dst Where to store the null-terminated utf16 decoded string.
1214 * \param src the \c MonoString to copy.
1215 * \param size the maximum number of wide characters to copy (each consumes 2 bytes)
1217 * Copies the \c MonoString pointed to by \p src as a utf16 string into
1218 * \p dst, it copies at most \p size bytes into the destination (including
1219 * a terminating 16-bit zero terminator).
1222 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1226 g_assert (dst != NULL);
1227 g_assert (size > 1);
1230 memset (dst, 0, size * 2);
1234 len = MIN (size, (mono_string_length (src)));
1235 memcpy (dst, mono_string_chars (src), len * 2);
1236 if (size <= mono_string_length (src))
1238 *((gunichar2 *) dst + len) = 0;
1241 /* this is an icall, it sets the pending exception and returns NULL on error */
1243 mono_string_new_len_wrapper (const char *text, guint length)
1246 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1247 mono_error_set_pending_exception (&error);
1254 * mono_mb_emit_exception_marshal_directive:
1256 * This function assumes ownership of MSG, which should be malloc-ed.
1259 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1264 s = mono_image_strdup (mb->method->klass->image, msg);
1269 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1272 #endif /* !DISABLE_JIT */
1275 mono_type_to_ldind (MonoType *type)
1281 switch (type->type) {
1283 return CEE_LDIND_I1;
1285 case MONO_TYPE_BOOLEAN:
1286 return CEE_LDIND_U1;
1288 return CEE_LDIND_I2;
1290 case MONO_TYPE_CHAR:
1291 return CEE_LDIND_U2;
1293 return CEE_LDIND_I4;
1295 return CEE_LDIND_U4;
1299 case MONO_TYPE_FNPTR:
1301 case MONO_TYPE_CLASS:
1302 case MONO_TYPE_STRING:
1303 case MONO_TYPE_OBJECT:
1304 case MONO_TYPE_SZARRAY:
1305 case MONO_TYPE_ARRAY:
1306 return CEE_LDIND_REF;
1309 return CEE_LDIND_I8;
1311 return CEE_LDIND_R4;
1313 return CEE_LDIND_R8;
1314 case MONO_TYPE_VALUETYPE:
1315 if (type->data.klass->enumtype) {
1316 type = mono_class_enum_basetype (type->data.klass);
1320 case MONO_TYPE_TYPEDBYREF:
1322 case MONO_TYPE_GENERICINST:
1323 type = &type->data.generic_class->container_class->byval_arg;
1326 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1332 mono_type_to_stind (MonoType *type)
1335 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1339 switch (type->type) {
1342 case MONO_TYPE_BOOLEAN:
1343 return CEE_STIND_I1;
1346 case MONO_TYPE_CHAR:
1347 return CEE_STIND_I2;
1350 return CEE_STIND_I4;
1354 case MONO_TYPE_FNPTR:
1356 case MONO_TYPE_CLASS:
1357 case MONO_TYPE_STRING:
1358 case MONO_TYPE_OBJECT:
1359 case MONO_TYPE_SZARRAY:
1360 case MONO_TYPE_ARRAY:
1361 return CEE_STIND_REF;
1364 return CEE_STIND_I8;
1366 return CEE_STIND_R4;
1368 return CEE_STIND_R8;
1369 case MONO_TYPE_VALUETYPE:
1370 if (type->data.klass->enumtype) {
1371 type = mono_class_enum_basetype (type->data.klass);
1375 case MONO_TYPE_TYPEDBYREF:
1377 case MONO_TYPE_GENERICINST:
1378 type = &type->data.generic_class->container_class->byval_arg;
1381 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1389 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1392 case MONO_MARSHAL_CONV_BOOL_I4:
1393 mono_mb_emit_ldloc (mb, 1);
1394 mono_mb_emit_ldloc (mb, 0);
1395 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1396 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1397 mono_mb_emit_byte (mb, 3);
1398 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1399 mono_mb_emit_byte (mb, CEE_BR_S);
1400 mono_mb_emit_byte (mb, 1);
1401 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1402 mono_mb_emit_byte (mb, CEE_STIND_I1);
1404 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1405 mono_mb_emit_ldloc (mb, 1);
1406 mono_mb_emit_ldloc (mb, 0);
1407 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1408 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1409 mono_mb_emit_byte (mb, 3);
1410 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1411 mono_mb_emit_byte (mb, CEE_BR_S);
1412 mono_mb_emit_byte (mb, 1);
1413 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1414 mono_mb_emit_byte (mb, CEE_STIND_I1);
1416 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1417 MonoClass *eklass = NULL;
1420 if (type->type == MONO_TYPE_SZARRAY) {
1421 eklass = type->data.klass;
1423 g_assert_not_reached ();
1426 esize = mono_class_native_size (eklass, NULL);
1428 /* create a new array */
1429 mono_mb_emit_ldloc (mb, 1);
1430 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1431 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1432 mono_mb_emit_byte (mb, CEE_STIND_REF);
1434 if (eklass->blittable) {
1435 /* copy the elements */
1436 mono_mb_emit_ldloc (mb, 1);
1437 mono_mb_emit_byte (mb, CEE_LDIND_I);
1438 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1439 mono_mb_emit_byte (mb, CEE_ADD);
1440 mono_mb_emit_ldloc (mb, 0);
1441 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1442 mono_mb_emit_byte (mb, CEE_PREFIX1);
1443 mono_mb_emit_byte (mb, CEE_CPBLK);
1446 int array_var, src_var, dst_var, index_var;
1447 guint32 label2, label3;
1449 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1450 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1451 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1454 mono_mb_emit_ldloc (mb, 1);
1455 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1456 mono_mb_emit_stloc (mb, array_var);
1458 /* save the old src pointer */
1459 mono_mb_emit_ldloc (mb, 0);
1460 mono_mb_emit_stloc (mb, src_var);
1461 /* save the old dst pointer */
1462 mono_mb_emit_ldloc (mb, 1);
1463 mono_mb_emit_stloc (mb, dst_var);
1465 /* Emit marshalling loop */
1466 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1467 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1468 mono_mb_emit_stloc (mb, index_var);
1471 label2 = mono_mb_get_label (mb);
1472 mono_mb_emit_ldloc (mb, index_var);
1473 mono_mb_emit_ldloc (mb, array_var);
1474 mono_mb_emit_byte (mb, CEE_LDLEN);
1475 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1477 /* src is already set */
1480 mono_mb_emit_ldloc (mb, array_var);
1481 mono_mb_emit_ldloc (mb, index_var);
1482 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1483 mono_mb_emit_stloc (mb, 1);
1485 /* Do the conversion */
1486 emit_struct_conv (mb, eklass, TRUE);
1489 mono_mb_emit_add_to_local (mb, index_var, 1);
1491 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1493 mono_mb_patch_branch (mb, label3);
1495 /* restore the old src pointer */
1496 mono_mb_emit_ldloc (mb, src_var);
1497 mono_mb_emit_stloc (mb, 0);
1498 /* restore the old dst pointer */
1499 mono_mb_emit_ldloc (mb, dst_var);
1500 mono_mb_emit_stloc (mb, 1);
1504 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1505 MonoClass *eclass = mono_defaults.char_class;
1507 /* create a new array */
1508 mono_mb_emit_ldloc (mb, 1);
1509 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1510 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1511 mono_mb_emit_byte (mb, CEE_STIND_REF);
1513 mono_mb_emit_ldloc (mb, 1);
1514 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1515 mono_mb_emit_ldloc (mb, 0);
1516 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1517 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1520 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1521 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1522 mono_mb_emit_ldloc (mb, 1);
1523 mono_mb_emit_ldloc (mb, 0);
1524 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1525 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1527 mono_mb_emit_ldloc (mb, 1);
1528 mono_mb_emit_ldloc (mb, 0);
1529 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1531 mono_mb_emit_byte (mb, CEE_STIND_REF);
1533 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1534 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1535 mono_mb_emit_ldloc (mb, 1);
1536 mono_mb_emit_ldloc (mb, 0);
1537 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1538 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1540 mono_mb_emit_ldloc (mb, 1);
1541 mono_mb_emit_ldloc (mb, 0);
1542 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1544 mono_mb_emit_byte (mb, CEE_STIND_REF);
1546 case MONO_MARSHAL_CONV_STR_LPTSTR:
1547 mono_mb_emit_ldloc (mb, 1);
1548 mono_mb_emit_ldloc (mb, 0);
1549 mono_mb_emit_byte (mb, CEE_LDIND_I);
1551 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1553 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1555 mono_mb_emit_byte (mb, CEE_STIND_REF);
1558 // In Mono historically LPSTR was treated as a UTF8STR
1559 case MONO_MARSHAL_CONV_STR_LPSTR:
1560 case MONO_MARSHAL_CONV_STR_UTF8STR:
1561 mono_mb_emit_ldloc (mb, 1);
1562 mono_mb_emit_ldloc (mb, 0);
1563 mono_mb_emit_byte (mb, CEE_LDIND_I);
1564 mono_mb_emit_icall (mb, ves_icall_string_new_wrapper);
1565 mono_mb_emit_byte (mb, CEE_STIND_REF);
1567 case MONO_MARSHAL_CONV_STR_LPWSTR:
1568 mono_mb_emit_ldloc (mb, 1);
1569 mono_mb_emit_ldloc (mb, 0);
1570 mono_mb_emit_byte (mb, CEE_LDIND_I);
1571 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1572 mono_mb_emit_byte (mb, CEE_STIND_REF);
1574 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1575 MonoClass *klass = mono_class_from_mono_type (type);
1576 int src_var, dst_var;
1578 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1579 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1581 /* *dst = new object */
1582 mono_mb_emit_ldloc (mb, 1);
1583 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1584 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1585 mono_mb_emit_byte (mb, CEE_STIND_REF);
1587 /* save the old src pointer */
1588 mono_mb_emit_ldloc (mb, 0);
1589 mono_mb_emit_stloc (mb, src_var);
1590 /* save the old dst pointer */
1591 mono_mb_emit_ldloc (mb, 1);
1592 mono_mb_emit_stloc (mb, dst_var);
1594 /* dst = pointer to newly created object data */
1595 mono_mb_emit_ldloc (mb, 1);
1596 mono_mb_emit_byte (mb, CEE_LDIND_I);
1597 mono_mb_emit_icon (mb, sizeof (MonoObject));
1598 mono_mb_emit_byte (mb, CEE_ADD);
1599 mono_mb_emit_stloc (mb, 1);
1601 emit_struct_conv (mb, klass, TRUE);
1603 /* restore the old src pointer */
1604 mono_mb_emit_ldloc (mb, src_var);
1605 mono_mb_emit_stloc (mb, 0);
1606 /* restore the old dst pointer */
1607 mono_mb_emit_ldloc (mb, dst_var);
1608 mono_mb_emit_stloc (mb, 1);
1611 case MONO_MARSHAL_CONV_DEL_FTN: {
1612 MonoClass *klass = mono_class_from_mono_type (type);
1614 mono_mb_emit_ldloc (mb, 1);
1615 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1616 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1617 mono_mb_emit_ldloc (mb, 0);
1618 mono_mb_emit_byte (mb, CEE_LDIND_I);
1619 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1620 mono_mb_emit_byte (mb, CEE_STIND_REF);
1623 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1624 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1628 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1629 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1630 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1631 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1633 #endif /* DISABLE_COM */
1635 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1637 * Passing SafeHandles as ref does not allow the unmanaged code
1638 * to change the SafeHandle value. If the value is changed,
1639 * we should issue a diagnostic exception (NotSupportedException)
1640 * that informs the user that changes to handles in unmanaged code
1643 * Since we currently have no access to the original
1644 * SafeHandle that was used during the marshalling,
1645 * for now we just ignore this, and ignore/discard any
1646 * changes that might have happened to the handle.
1651 case MONO_MARSHAL_CONV_HANDLEREF: {
1653 * Passing HandleRefs in a struct that is ref()ed does not
1654 * copy the values back to the HandleRef
1659 case MONO_MARSHAL_CONV_STR_BSTR:
1660 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1661 case MONO_MARSHAL_CONV_STR_TBSTR:
1662 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1664 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1666 mono_mb_emit_exception_marshal_directive (mb, msg);
1673 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1676 if (!ind_store_type)
1677 ind_store_type = &dummy;
1678 *ind_store_type = CEE_STIND_I;
1680 case MONO_MARSHAL_CONV_STR_LPWSTR:
1681 return mono_marshal_string_to_utf16;
1682 case MONO_MARSHAL_CONV_LPWSTR_STR:
1683 *ind_store_type = CEE_STIND_REF;
1684 return ves_icall_mono_string_from_utf16;
1685 case MONO_MARSHAL_CONV_LPTSTR_STR:
1686 *ind_store_type = CEE_STIND_REF;
1687 return ves_icall_string_new_wrapper;
1688 case MONO_MARSHAL_CONV_UTF8STR_STR:
1689 case MONO_MARSHAL_CONV_LPSTR_STR:
1690 *ind_store_type = CEE_STIND_REF;
1691 return ves_icall_string_new_wrapper;
1692 case MONO_MARSHAL_CONV_STR_LPTSTR:
1694 return mono_marshal_string_to_utf16;
1696 return mono_string_to_utf8str;
1698 // In Mono historically LPSTR was treated as a UTF8STR
1699 case MONO_MARSHAL_CONV_STR_UTF8STR:
1700 case MONO_MARSHAL_CONV_STR_LPSTR:
1701 return mono_string_to_utf8str;
1702 case MONO_MARSHAL_CONV_STR_BSTR:
1703 return mono_string_to_bstr;
1704 case MONO_MARSHAL_CONV_BSTR_STR:
1705 *ind_store_type = CEE_STIND_REF;
1706 return mono_string_from_bstr_icall;
1707 case MONO_MARSHAL_CONV_STR_TBSTR:
1708 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1709 return mono_string_to_ansibstr;
1710 case MONO_MARSHAL_CONV_SB_UTF8STR:
1711 case MONO_MARSHAL_CONV_SB_LPSTR:
1712 return mono_string_builder_to_utf8;
1713 case MONO_MARSHAL_CONV_SB_LPTSTR:
1715 return mono_string_builder_to_utf16;
1717 return mono_string_builder_to_utf8;
1719 case MONO_MARSHAL_CONV_SB_LPWSTR:
1720 return mono_string_builder_to_utf16;
1721 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1722 return mono_array_to_savearray;
1723 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1724 return mono_array_to_lparray;
1725 case MONO_MARSHAL_FREE_LPARRAY:
1726 return mono_free_lparray;
1727 case MONO_MARSHAL_CONV_DEL_FTN:
1728 return mono_delegate_to_ftnptr;
1729 case MONO_MARSHAL_CONV_FTN_DEL:
1730 *ind_store_type = CEE_STIND_REF;
1731 return mono_ftnptr_to_delegate;
1732 case MONO_MARSHAL_CONV_UTF8STR_SB:
1733 case MONO_MARSHAL_CONV_LPSTR_SB:
1734 *ind_store_type = CEE_STIND_REF;
1735 return mono_string_utf8_to_builder;
1736 case MONO_MARSHAL_CONV_LPTSTR_SB:
1737 *ind_store_type = CEE_STIND_REF;
1739 return mono_string_utf16_to_builder;
1741 return mono_string_utf8_to_builder;
1743 case MONO_MARSHAL_CONV_LPWSTR_SB:
1744 *ind_store_type = CEE_STIND_REF;
1745 return mono_string_utf16_to_builder;
1746 case MONO_MARSHAL_FREE_ARRAY:
1747 return mono_marshal_free_array;
1748 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1749 return mono_string_to_byvalstr;
1750 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1751 return mono_string_to_byvalwstr;
1753 g_assert_not_reached ();
1760 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1766 case MONO_MARSHAL_CONV_BOOL_I4:
1767 mono_mb_emit_ldloc (mb, 1);
1768 mono_mb_emit_ldloc (mb, 0);
1769 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1770 mono_mb_emit_byte (mb, CEE_STIND_I4);
1772 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1773 mono_mb_emit_ldloc (mb, 1);
1774 mono_mb_emit_ldloc (mb, 0);
1775 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1776 mono_mb_emit_byte (mb, CEE_NEG);
1777 mono_mb_emit_byte (mb, CEE_STIND_I2);
1779 // In Mono historically LPSTR was treated as a UTF8STR
1780 case MONO_MARSHAL_CONV_STR_UTF8STR:
1781 case MONO_MARSHAL_CONV_STR_LPWSTR:
1782 case MONO_MARSHAL_CONV_STR_LPSTR:
1783 case MONO_MARSHAL_CONV_STR_LPTSTR:
1784 case MONO_MARSHAL_CONV_STR_BSTR:
1785 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1786 case MONO_MARSHAL_CONV_STR_TBSTR: {
1789 /* free space if free == true */
1790 mono_mb_emit_ldloc (mb, 2);
1791 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1792 mono_mb_emit_ldloc (mb, 1);
1793 mono_mb_emit_byte (mb, CEE_LDIND_I);
1794 mono_mb_emit_icall (mb, g_free);
1795 mono_mb_patch_short_branch (mb, pos);
1797 mono_mb_emit_ldloc (mb, 1);
1798 mono_mb_emit_ldloc (mb, 0);
1799 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1800 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1801 mono_mb_emit_byte (mb, stind_op);
1804 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1805 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1806 case MONO_MARSHAL_CONV_DEL_FTN:
1807 mono_mb_emit_ldloc (mb, 1);
1808 mono_mb_emit_ldloc (mb, 0);
1809 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1810 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1811 mono_mb_emit_byte (mb, stind_op);
1813 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1814 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1817 mono_mb_emit_ldloc (mb, 1); /* dst */
1818 mono_mb_emit_ldloc (mb, 0);
1819 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1820 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1821 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1824 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1825 MonoClass *eklass = NULL;
1828 if (type->type == MONO_TYPE_SZARRAY) {
1829 eklass = type->data.klass;
1831 g_assert_not_reached ();
1834 if (eklass->valuetype)
1835 esize = mono_class_native_size (eklass, NULL);
1837 esize = sizeof (gpointer);
1839 mono_mb_emit_ldloc (mb, 0);
1840 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1841 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1843 if (eklass->blittable) {
1844 mono_mb_emit_ldloc (mb, 1);
1845 mono_mb_emit_ldloc (mb, 0);
1846 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1847 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1848 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1849 mono_mb_emit_byte (mb, CEE_PREFIX1);
1850 mono_mb_emit_byte (mb, CEE_CPBLK);
1852 int array_var, src_var, dst_var, index_var;
1853 guint32 label2, label3;
1855 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1856 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1857 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1860 mono_mb_emit_ldloc (mb, 0);
1861 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1862 mono_mb_emit_stloc (mb, array_var);
1864 /* save the old src pointer */
1865 mono_mb_emit_ldloc (mb, 0);
1866 mono_mb_emit_stloc (mb, src_var);
1867 /* save the old dst pointer */
1868 mono_mb_emit_ldloc (mb, 1);
1869 mono_mb_emit_stloc (mb, dst_var);
1871 /* Emit marshalling loop */
1872 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1873 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1874 mono_mb_emit_stloc (mb, index_var);
1877 label2 = mono_mb_get_label (mb);
1878 mono_mb_emit_ldloc (mb, index_var);
1879 mono_mb_emit_ldloc (mb, array_var);
1880 mono_mb_emit_byte (mb, CEE_LDLEN);
1881 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1884 mono_mb_emit_ldloc (mb, array_var);
1885 mono_mb_emit_ldloc (mb, index_var);
1886 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1887 mono_mb_emit_stloc (mb, 0);
1889 /* dst is already set */
1891 /* Do the conversion */
1892 emit_struct_conv (mb, eklass, FALSE);
1895 mono_mb_emit_add_to_local (mb, index_var, 1);
1897 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1899 mono_mb_patch_branch (mb, label3);
1901 /* restore the old src pointer */
1902 mono_mb_emit_ldloc (mb, src_var);
1903 mono_mb_emit_stloc (mb, 0);
1904 /* restore the old dst pointer */
1905 mono_mb_emit_ldloc (mb, dst_var);
1906 mono_mb_emit_stloc (mb, 1);
1909 mono_mb_patch_branch (mb, pos);
1912 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1913 mono_mb_emit_ldloc (mb, 0);
1914 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1915 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1917 mono_mb_emit_ldloc (mb, 1);
1918 mono_mb_emit_ldloc (mb, 0);
1919 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1920 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1921 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1922 mono_mb_patch_short_branch (mb, pos);
1925 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1926 int src_var, dst_var;
1928 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1929 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1931 mono_mb_emit_ldloc (mb, 0);
1932 mono_mb_emit_byte (mb, CEE_LDIND_I);
1933 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1935 /* save the old src pointer */
1936 mono_mb_emit_ldloc (mb, 0);
1937 mono_mb_emit_stloc (mb, src_var);
1938 /* save the old dst pointer */
1939 mono_mb_emit_ldloc (mb, 1);
1940 mono_mb_emit_stloc (mb, dst_var);
1942 /* src = pointer to object data */
1943 mono_mb_emit_ldloc (mb, 0);
1944 mono_mb_emit_byte (mb, CEE_LDIND_I);
1945 mono_mb_emit_icon (mb, sizeof (MonoObject));
1946 mono_mb_emit_byte (mb, CEE_ADD);
1947 mono_mb_emit_stloc (mb, 0);
1949 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1951 /* restore the old src pointer */
1952 mono_mb_emit_ldloc (mb, src_var);
1953 mono_mb_emit_stloc (mb, 0);
1954 /* restore the old dst pointer */
1955 mono_mb_emit_ldloc (mb, dst_var);
1956 mono_mb_emit_stloc (mb, 1);
1958 mono_mb_patch_branch (mb, pos);
1963 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1964 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1965 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1966 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1968 #endif /* DISABLE_COM */
1970 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1973 mono_mb_emit_ldloc (mb, 0);
1974 mono_mb_emit_byte (mb, CEE_LDIND_I);
1975 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1976 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1977 mono_mb_patch_branch (mb, pos);
1979 /* Pull the handle field from SafeHandle */
1980 mono_mb_emit_ldloc (mb, 1);
1981 mono_mb_emit_ldloc (mb, 0);
1982 mono_mb_emit_byte (mb, CEE_LDIND_I);
1983 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1984 mono_mb_emit_byte (mb, CEE_LDIND_I);
1985 mono_mb_emit_byte (mb, CEE_STIND_I);
1989 case MONO_MARSHAL_CONV_HANDLEREF: {
1990 mono_mb_emit_ldloc (mb, 1);
1991 mono_mb_emit_ldloc (mb, 0);
1992 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1993 mono_mb_emit_byte (mb, CEE_ADD);
1994 mono_mb_emit_byte (mb, CEE_LDIND_I);
1995 mono_mb_emit_byte (mb, CEE_STIND_I);
2000 g_error ("marshalling conversion %d not implemented", conv);
2006 offset_of_first_nonstatic_field (MonoClass *klass)
2009 int fcount = mono_class_get_field_count (klass);
2010 mono_class_setup_fields (klass);
2011 for (i = 0; i < fcount; i++) {
2012 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
2013 return klass->fields[i].offset - sizeof (MonoObject);
2020 get_fixed_buffer_attr (MonoClassField *field, MonoType **out_etype, int *out_len)
2023 MonoCustomAttrInfo *cinfo;
2024 MonoCustomAttrEntry *attr;
2027 cinfo = mono_custom_attrs_from_field_checked (field->parent, field, &error);
2028 if (!is_ok (&error))
2032 for (aindex = 0; aindex < cinfo->num_attrs; ++aindex) {
2033 MonoClass *ctor_class = cinfo->attrs [aindex].ctor->klass;
2034 if (mono_class_has_parent (ctor_class, mono_class_get_fixed_buffer_attribute_class ())) {
2035 attr = &cinfo->attrs [aindex];
2041 MonoArray *typed_args, *named_args;
2042 CattrNamedArg *arginfo;
2045 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
2046 if (!is_ok (&error))
2048 g_assert (mono_array_length (typed_args) == 2);
2051 o = mono_array_get (typed_args, MonoObject*, 0);
2052 *out_etype = monotype_cast (o)->type;
2053 o = mono_array_get (typed_args, MonoObject*, 1);
2054 g_assert (o->vtable->klass == mono_defaults.int32_class);
2055 *out_len = *(gint32*)mono_object_unbox (o);
2058 if (cinfo && !cinfo->cached)
2059 mono_custom_attrs_free (cinfo);
2060 return attr != NULL;
2064 emit_fixed_buf_conv (MonoMethodBuilder *mb, MonoType *type, MonoType *etype, int len, gboolean to_object, int *out_usize)
2066 MonoClass *klass = mono_class_from_mono_type (type);
2067 MonoClass *eklass = mono_class_from_mono_type (etype);
2070 esize = mono_class_native_size (eklass, NULL);
2072 MonoMarshalNative string_encoding = klass->unicode ? MONO_NATIVE_LPWSTR : MONO_NATIVE_LPSTR;
2073 int usize = mono_class_value_size (eklass, NULL);
2074 int msize = mono_class_value_size (eklass, NULL);
2076 //printf ("FIXED: %s %d %d\n", mono_type_full_name (type), eklass->blittable, string_encoding);
2078 if (eklass->blittable) {
2079 /* copy the elements */
2080 mono_mb_emit_ldloc (mb, 1);
2081 mono_mb_emit_ldloc (mb, 0);
2082 mono_mb_emit_icon (mb, len * esize);
2083 mono_mb_emit_byte (mb, CEE_PREFIX1);
2084 mono_mb_emit_byte (mb, CEE_CPBLK);
2087 guint32 label2, label3;
2089 /* Emit marshalling loop */
2090 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2091 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2092 mono_mb_emit_stloc (mb, index_var);
2095 label2 = mono_mb_get_label (mb);
2096 mono_mb_emit_ldloc (mb, index_var);
2097 mono_mb_emit_icon (mb, len);
2098 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2100 /* src/dst is already set */
2102 /* Do the conversion */
2103 MonoTypeEnum t = etype->type;
2109 case MONO_TYPE_BOOLEAN:
2112 case MONO_TYPE_CHAR:
2118 mono_mb_emit_ldloc (mb, 1);
2119 mono_mb_emit_ldloc (mb, 0);
2120 if (t == MONO_TYPE_CHAR && string_encoding != MONO_NATIVE_LPWSTR) {
2122 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2123 mono_mb_emit_byte (mb, CEE_STIND_I2);
2125 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2126 mono_mb_emit_byte (mb, CEE_STIND_I1);
2130 mono_mb_emit_byte (mb, mono_type_to_ldind (etype));
2131 mono_mb_emit_byte (mb, mono_type_to_stind (etype));
2135 g_assert_not_reached ();
2140 mono_mb_emit_add_to_local (mb, 0, usize);
2141 mono_mb_emit_add_to_local (mb, 1, msize);
2143 mono_mb_emit_add_to_local (mb, 0, msize);
2144 mono_mb_emit_add_to_local (mb, 1, usize);
2148 mono_mb_emit_add_to_local (mb, index_var, 1);
2150 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2152 mono_mb_patch_branch (mb, label3);
2155 *out_usize = usize * len;
2159 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
2160 int offset_of_first_child_field, MonoMarshalNative string_encoding)
2162 MonoMarshalType *info;
2166 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
2168 info = mono_marshal_load_type_info (klass);
2170 if (info->native_size == 0)
2173 if (klass->blittable) {
2174 int usize = mono_class_value_size (klass, NULL);
2175 g_assert (usize == info->native_size);
2176 mono_mb_emit_ldloc (mb, 1);
2177 mono_mb_emit_ldloc (mb, 0);
2178 mono_mb_emit_icon (mb, usize);
2179 mono_mb_emit_byte (mb, CEE_PREFIX1);
2180 mono_mb_emit_byte (mb, CEE_CPBLK);
2183 mono_mb_emit_add_to_local (mb, 0, usize);
2184 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
2186 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
2187 mono_mb_emit_add_to_local (mb, 1, usize);
2192 if (klass != mono_class_try_get_safehandle_class ()) {
2193 if (mono_class_is_auto_layout (klass)) {
2194 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
2195 mono_type_full_name (&klass->byval_arg));
2196 mono_mb_emit_exception_marshal_directive (mb, msg);
2201 for (i = 0; i < info->num_fields; i++) {
2202 MonoMarshalNative ntype;
2203 MonoMarshalConv conv;
2204 MonoType *ftype = info->fields [i].field->type;
2207 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2209 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2212 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2215 msize = klass->instance_size - info->fields [i].field->offset;
2216 usize = info->native_size - info->fields [i].offset;
2218 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2219 usize = info->fields [i + 1].offset - info->fields [i].offset;
2222 if (klass != mono_class_try_get_safehandle_class ()){
2224 * FIXME: Should really check for usize==0 and msize>0, but we apply
2225 * the layout to the managed structure as well.
2228 if (mono_class_is_explicit_layout (klass) && (usize == 0)) {
2229 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2230 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2231 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2232 "reference field at the same offset as another field.",
2233 mono_type_full_name (&klass->byval_arg));
2238 case MONO_MARSHAL_CONV_NONE: {
2241 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2242 g_assert (!ftype->byref);
2243 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2244 mono_mb_emit_ldloc (mb, 1);
2245 mono_mb_emit_ldloc (mb, 0);
2246 mono_mb_emit_byte (mb, CEE_LDIND_I);
2247 mono_mb_emit_byte (mb, CEE_STIND_I);
2258 case MONO_TYPE_BOOLEAN:
2261 case MONO_TYPE_CHAR:
2267 mono_mb_emit_ldloc (mb, 1);
2268 mono_mb_emit_ldloc (mb, 0);
2269 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2271 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2272 mono_mb_emit_byte (mb, CEE_STIND_I2);
2274 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2275 mono_mb_emit_byte (mb, CEE_STIND_I1);
2278 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2279 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2282 case MONO_TYPE_VALUETYPE: {
2283 int src_var, dst_var;
2287 if (ftype->data.klass->enumtype) {
2288 ftype = mono_class_enum_basetype (ftype->data.klass);
2292 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2293 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2295 /* save the old src pointer */
2296 mono_mb_emit_ldloc (mb, 0);
2297 mono_mb_emit_stloc (mb, src_var);
2298 /* save the old dst pointer */
2299 mono_mb_emit_ldloc (mb, 1);
2300 mono_mb_emit_stloc (mb, dst_var);
2302 if (get_fixed_buffer_attr (info->fields [i].field, &etype, &len)) {
2303 emit_fixed_buf_conv (mb, ftype, etype, len, to_object, &usize);
2305 emit_struct_conv (mb, ftype->data.klass, to_object);
2308 /* restore the old src pointer */
2309 mono_mb_emit_ldloc (mb, src_var);
2310 mono_mb_emit_stloc (mb, 0);
2311 /* restore the old dst pointer */
2312 mono_mb_emit_ldloc (mb, dst_var);
2313 mono_mb_emit_stloc (mb, 1);
2316 case MONO_TYPE_OBJECT: {
2319 static MonoMethod *variant_clear = NULL;
2320 static MonoMethod *get_object_for_native_variant = NULL;
2323 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2324 if (!get_object_for_native_variant)
2325 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2326 mono_mb_emit_ldloc (mb, 1);
2327 mono_mb_emit_ldloc (mb, 0);
2328 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2329 mono_mb_emit_byte (mb, CEE_STIND_REF);
2331 mono_mb_emit_ldloc (mb, 0);
2332 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2335 static MonoMethod *get_native_variant_for_object = NULL;
2337 if (!get_native_variant_for_object)
2338 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2340 mono_mb_emit_ldloc (mb, 0);
2341 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2342 mono_mb_emit_ldloc (mb, 1);
2343 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2346 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2347 mono_mb_emit_exception_marshal_directive (mb, msg);
2353 g_warning ("marshaling type %02x not implemented", ftype->type);
2354 g_assert_not_reached ();
2359 int src_var, dst_var;
2361 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2362 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2364 /* save the old src pointer */
2365 mono_mb_emit_ldloc (mb, 0);
2366 mono_mb_emit_stloc (mb, src_var);
2367 /* save the old dst pointer */
2368 mono_mb_emit_ldloc (mb, 1);
2369 mono_mb_emit_stloc (mb, dst_var);
2372 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2374 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2376 /* restore the old src pointer */
2377 mono_mb_emit_ldloc (mb, src_var);
2378 mono_mb_emit_stloc (mb, 0);
2379 /* restore the old dst pointer */
2380 mono_mb_emit_ldloc (mb, dst_var);
2381 mono_mb_emit_stloc (mb, 1);
2386 mono_mb_emit_add_to_local (mb, 0, usize);
2387 mono_mb_emit_add_to_local (mb, 1, msize);
2389 mono_mb_emit_add_to_local (mb, 0, msize);
2390 mono_mb_emit_add_to_local (mb, 1, usize);
2396 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2398 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2402 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2404 /* Call DestroyStructure */
2405 /* FIXME: Only do this if needed */
2406 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2407 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2408 mono_mb_emit_ldloc (mb, struct_var);
2409 mono_mb_emit_icall (mb, mono_struct_delete_old);
2413 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2415 int pos_noabort, pos_noex;
2417 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2418 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2419 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2420 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2422 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2423 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2425 mono_mb_emit_icall (mb, checkpoint_func);
2426 /* Throw the exception returned by the checkpoint function, if any */
2427 mono_mb_emit_byte (mb, CEE_DUP);
2428 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2429 mono_mb_emit_byte (mb, CEE_THROW);
2430 mono_mb_patch_branch (mb, pos_noex);
2431 mono_mb_emit_byte (mb, CEE_POP);
2433 mono_mb_patch_branch (mb, pos_noabort);
2437 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2439 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2442 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2446 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2448 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2452 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2454 emit_thread_interrupt_checkpoint (mb);
2458 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2460 emit_thread_force_interrupt_checkpoint (mb);
2463 #endif /* DISABLE_JIT */
2465 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2466 static MonoAsyncResult *
2467 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2470 MonoMulticastDelegate *mcast_delegate;
2474 g_assert (delegate);
2475 mcast_delegate = (MonoMulticastDelegate *) delegate;
2476 if (mcast_delegate->delegates != NULL) {
2477 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2481 #ifndef DISABLE_REMOTING
2482 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2483 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2484 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2485 /* If the target is a proxy, make a direct call. Is proxy's work
2486 // to make the call asynchronous.
2488 MonoMethodMessage *msg;
2489 MonoDelegate *async_callback;
2491 MonoAsyncResult *ares;
2493 MonoArray *out_args;
2494 method = delegate->method;
2496 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2497 if (mono_error_set_pending_exception (&error))
2499 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2500 if (mono_error_set_pending_exception (&error))
2502 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2503 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2504 MONO_OBJECT_SETREF (msg, async_result, ares);
2505 msg->call_type = CallType_BeginInvoke;
2508 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2509 if (!mono_error_ok (&error)) {
2510 mono_error_set_pending_exception (&error);
2514 mono_set_pending_exception ((MonoException *) exc);
2520 klass = delegate->object.vtable->klass;
2522 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2524 method = mono_get_delegate_invoke (klass);
2527 MonoAsyncResult *result = mono_threadpool_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2528 mono_error_set_pending_exception (&error);
2535 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2537 int i, params_var, tmp_var;
2539 /* allocate local (pointer) *params[] */
2540 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2541 /* allocate local (pointer) tmp */
2542 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2544 /* alloate space on stack to store an array of pointers to the arguments */
2545 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2546 mono_mb_emit_byte (mb, CEE_PREFIX1);
2547 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2548 mono_mb_emit_stloc (mb, params_var);
2551 mono_mb_emit_ldloc (mb, params_var);
2552 mono_mb_emit_stloc (mb, tmp_var);
2554 if (save_this && sig->hasthis) {
2555 mono_mb_emit_ldloc (mb, tmp_var);
2556 mono_mb_emit_ldarg_addr (mb, 0);
2557 mono_mb_emit_byte (mb, CEE_STIND_I);
2558 /* tmp = tmp + sizeof (gpointer) */
2559 if (sig->param_count)
2560 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2564 for (i = 0; i < sig->param_count; i++) {
2565 mono_mb_emit_ldloc (mb, tmp_var);
2566 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2567 mono_mb_emit_byte (mb, CEE_STIND_I);
2568 /* tmp = tmp + sizeof (gpointer) */
2569 if (i < (sig->param_count - 1))
2570 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2576 #endif /* DISABLE_JIT */
2579 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2583 GString *res = g_string_new ("");
2586 g_string_append (res, prefix);
2587 g_string_append_c (res, '_');
2590 mono_type_get_desc (res, sig->ret, FALSE);
2593 g_string_append (res, "__this__");
2595 for (i = 0; i < sig->param_count; ++i) {
2596 g_string_append_c (res, '_');
2597 mono_type_get_desc (res, sig->params [i], FALSE);
2600 g_string_free (res, FALSE);
2605 * mono_marshal_get_string_encoding:
2607 * Return the string encoding which should be used for a given parameter.
2609 static MonoMarshalNative
2610 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2612 /* First try the parameter marshal info */
2614 if (spec->native == MONO_NATIVE_LPARRAY) {
2615 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2616 return spec->data.array_data.elem_type;
2619 return spec->native;
2623 return MONO_NATIVE_LPSTR;
2625 /* Then try the method level marshal info */
2626 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2627 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2628 return MONO_NATIVE_LPSTR;
2629 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2630 return MONO_NATIVE_LPWSTR;
2631 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2633 return MONO_NATIVE_LPWSTR;
2635 return MONO_NATIVE_LPSTR;
2638 return MONO_NATIVE_LPSTR;
2642 static MonoMarshalConv
2643 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2645 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2648 case MONO_NATIVE_LPWSTR:
2649 return MONO_MARSHAL_CONV_STR_LPWSTR;
2650 case MONO_NATIVE_LPSTR:
2651 case MONO_NATIVE_VBBYREFSTR:
2652 return MONO_MARSHAL_CONV_STR_LPSTR;
2653 case MONO_NATIVE_LPTSTR:
2654 return MONO_MARSHAL_CONV_STR_LPTSTR;
2655 case MONO_NATIVE_BSTR:
2656 return MONO_MARSHAL_CONV_STR_BSTR;
2657 case MONO_NATIVE_UTF8STR:
2658 return MONO_MARSHAL_CONV_STR_UTF8STR;
2660 return MONO_MARSHAL_CONV_INVALID;
2664 static MonoMarshalConv
2665 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2667 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2670 case MONO_NATIVE_LPWSTR:
2671 return MONO_MARSHAL_CONV_SB_LPWSTR;
2672 case MONO_NATIVE_LPSTR:
2673 return MONO_MARSHAL_CONV_SB_LPSTR;
2674 case MONO_NATIVE_UTF8STR:
2675 return MONO_MARSHAL_CONV_SB_UTF8STR;
2676 case MONO_NATIVE_LPTSTR:
2677 return MONO_MARSHAL_CONV_SB_LPTSTR;
2679 return MONO_MARSHAL_CONV_INVALID;
2683 static MonoMarshalConv
2684 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2686 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2691 case MONO_NATIVE_LPWSTR:
2693 return MONO_MARSHAL_CONV_LPWSTR_STR;
2694 case MONO_NATIVE_UTF8STR:
2695 return MONO_MARSHAL_CONV_UTF8STR_STR;
2696 case MONO_NATIVE_LPSTR:
2697 case MONO_NATIVE_VBBYREFSTR:
2698 return MONO_MARSHAL_CONV_LPSTR_STR;
2699 case MONO_NATIVE_LPTSTR:
2703 return MONO_MARSHAL_CONV_LPTSTR_STR;
2704 case MONO_NATIVE_BSTR:
2705 return MONO_MARSHAL_CONV_BSTR_STR;
2707 return MONO_MARSHAL_CONV_INVALID;
2711 static MonoMarshalConv
2712 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2714 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2719 case MONO_NATIVE_LPWSTR:
2721 * mono_string_builder_to_utf16 does not allocate a
2722 * new buffer, so no need to free it.
2725 return MONO_MARSHAL_CONV_LPWSTR_SB;
2726 case MONO_NATIVE_UTF8STR:
2727 return MONO_MARSHAL_CONV_UTF8STR_SB;
2728 case MONO_NATIVE_LPSTR:
2729 return MONO_MARSHAL_CONV_LPSTR_SB;
2731 case MONO_NATIVE_LPTSTR:
2732 return MONO_MARSHAL_CONV_LPTSTR_SB;
2735 return MONO_MARSHAL_CONV_INVALID;
2740 * Return whenever a field of a native structure or an array member needs to
2744 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2746 MonoMarshalNative encoding;
2749 case MONO_TYPE_VALUETYPE:
2750 /* FIXME: Optimize this */
2752 case MONO_TYPE_OBJECT:
2753 case MONO_TYPE_CLASS:
2754 if (t->data.klass == mono_defaults.stringbuilder_class) {
2756 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2760 case MONO_TYPE_STRING:
2761 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2762 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2769 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2772 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2775 mono_marshal_lock ();
2778 g_hash_table_new (hash_func, equal_func);
2779 mono_memory_barrier ();
2782 mono_marshal_unlock ();
2788 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2790 return get_cache (var, hash_func, equal_func);
2794 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2798 mono_marshal_lock ();
2799 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2800 mono_marshal_unlock ();
2807 * Create a MonoMethod from MB, set INFO as wrapper info.
2810 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2811 int max_stack, WrapperInfo *info)
2815 res = mono_mb_create_method (mb, sig, max_stack);
2817 mono_marshal_set_wrapper_info (res, info);
2821 /* Create the method from the builder and place it in the cache */
2823 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2824 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2825 int max_stack, WrapperInfo *info, gboolean *out_found)
2832 mono_marshal_lock ();
2833 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2834 mono_marshal_unlock ();
2837 newm = mono_mb_create_method (mb, sig, max_stack);
2838 mono_marshal_lock ();
2839 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2842 g_hash_table_insert (cache, key, res);
2843 mono_marshal_set_wrapper_info (res, info);
2844 mono_marshal_unlock ();
2848 mono_marshal_unlock ();
2849 mono_free_method (newm);
2857 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2858 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2861 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2865 * mono_marshal_method_from_wrapper:
2868 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2871 int wrapper_type = wrapper->wrapper_type;
2874 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2877 info = mono_marshal_get_wrapper_info (wrapper);
2879 switch (wrapper_type) {
2880 case MONO_WRAPPER_REMOTING_INVOKE:
2881 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2882 case MONO_WRAPPER_XDOMAIN_INVOKE:
2883 m = info->d.remoting.method;
2884 if (wrapper->is_inflated) {
2888 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2889 * contains an uninflated method.
2891 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2892 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2896 case MONO_WRAPPER_SYNCHRONIZED:
2897 m = info->d.synchronized.method;
2898 if (wrapper->is_inflated) {
2901 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2902 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2906 case MONO_WRAPPER_UNBOX:
2907 return info->d.unbox.method;
2908 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2909 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2910 return info->d.managed_to_native.method;
2913 case MONO_WRAPPER_RUNTIME_INVOKE:
2914 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2915 return info->d.runtime_invoke.method;
2918 case MONO_WRAPPER_DELEGATE_INVOKE:
2920 return info->d.delegate_invoke.method;
2929 * mono_marshal_get_wrapper_info:
2931 * Retrieve the WrapperInfo structure associated with WRAPPER.
2934 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2936 g_assert (wrapper->wrapper_type);
2938 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2942 * mono_marshal_set_wrapper_info:
2944 * Set the WrapperInfo structure associated with the wrapper
2945 * method METHOD to INFO.
2948 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2952 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2955 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2960 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2964 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2965 info->subtype = subtype;
2970 * get_wrapper_target_class:
2972 * Return the class where a wrapper method should be placed.
2975 get_wrapper_target_class (MonoImage *image)
2982 * - can't put all wrappers into an mscorlib class, because they reference
2983 * metadata (signature) so they should be put into the same image as the
2984 * method they wrap, so they are unloaded together.
2985 * - putting them into a class with a type initalizer could cause the
2986 * initializer to be executed which can be a problem if the wrappers are
2988 * - putting them into an inflated class can cause problems if the the
2989 * class is deleted because it references an image which is unloaded.
2990 * To avoid these problems, we put the wrappers into the <Module> class of
2993 if (image_is_dynamic (image)) {
2994 klass = ((MonoDynamicImage*)image)->wrappers_type;
2996 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2997 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3005 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
3006 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
3010 * check_generic_wrapper_cache:
3012 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
3013 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
3014 * generic method definition.
3017 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
3020 MonoMethod *inst, *def;
3021 MonoGenericContext *ctx;
3023 g_assert (orig_method->is_inflated);
3024 ctx = mono_method_get_context (orig_method);
3027 * Look for the instance
3029 res = mono_marshal_find_in_cache (cache, key);
3034 * Look for the definition
3036 def = mono_marshal_find_in_cache (cache, def_key);
3039 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3040 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3042 mono_memory_barrier ();
3043 mono_marshal_lock ();
3044 res = (MonoMethod *)g_hash_table_lookup (cache, key);
3046 g_hash_table_insert (cache, key, inst);
3049 mono_marshal_unlock ();
3056 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
3059 MonoMethod *inst, *res;
3062 * We use the same cache for the generic definition and the instances.
3064 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3065 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3066 mono_memory_barrier ();
3067 mono_marshal_lock ();
3068 res = (MonoMethod *)g_hash_table_lookup (cache, key);
3070 g_hash_table_insert (cache, key, inst);
3073 mono_marshal_unlock ();
3078 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
3082 MonoMethod *inst, *def;
3085 * Look for the instance
3087 res = mono_marshal_find_in_cache (cache, orig_method->klass);
3092 * Look for the definition
3094 def = mono_marshal_find_in_cache (cache, def_method->klass);
3096 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3097 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3100 mono_memory_barrier ();
3101 mono_marshal_lock ();
3102 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3104 g_hash_table_insert (cache, orig_method->klass, inst);
3107 mono_marshal_unlock ();
3114 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
3117 MonoMethod *inst, *res;
3118 WrapperInfo *ginfo, *info;
3121 * We use the same cache for the generic definition and the instances.
3123 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3124 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3126 ginfo = mono_marshal_get_wrapper_info (def);
3128 info = (WrapperInfo *)mono_image_alloc0 (def->klass->image, sizeof (WrapperInfo));
3129 info->subtype = ginfo->subtype;
3130 if (info->subtype == WRAPPER_SUBTYPE_NONE) {
3131 info->d.delegate_invoke.method = mono_class_inflate_generic_method_checked (ginfo->d.delegate_invoke.method, ctx, &error);
3132 mono_error_assert_ok (&error);
3136 mono_memory_barrier ();
3137 mono_marshal_lock ();
3138 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3140 g_hash_table_insert (cache, orig_method->klass, inst);
3143 mono_marshal_unlock ();
3148 * mono_marshal_get_delegate_begin_invoke:
3151 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
3153 MonoMethodSignature *sig;
3154 MonoMethodBuilder *mb;
3159 MonoGenericContext *ctx = NULL;
3160 MonoMethod *orig_method = NULL;
3162 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3163 !strcmp (method->name, "BeginInvoke"));
3166 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3168 if (method->is_inflated) {
3169 orig_method = method;
3170 ctx = &((MonoMethodInflated*)method)->context;
3171 method = ((MonoMethodInflated*)method)->declaring;
3174 sig = mono_signature_no_pinvoke (method);
3180 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
3181 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3185 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
3186 (GHashFunc)mono_signature_hash,
3187 (GCompareFunc)mono_metadata_signature_equal);
3188 if ((res = mono_marshal_find_in_cache (cache, sig)))
3192 g_assert (sig->hasthis);
3194 name = mono_signature_to_name (sig, "begin_invoke");
3196 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3198 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3202 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3204 mono_mb_emit_ldarg (mb, 0);
3205 mono_mb_emit_ldloc (mb, params_var);
3206 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3207 mono_mb_emit_byte (mb, CEE_RET);
3212 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3213 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3215 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3222 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
3224 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3227 MonoDomain *domain = mono_domain_get ();
3228 MonoAsyncResult *ares;
3229 MonoMethod *method = NULL;
3230 MonoMethodSignature *sig;
3231 MonoMethodMessage *msg;
3232 MonoObject *res, *exc;
3233 MonoArray *out_args;
3236 g_assert (delegate);
3238 if (!delegate->method_info) {
3239 g_assert (delegate->method);
3240 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
3241 if (!mono_error_ok (&error)) {
3242 mono_error_set_pending_exception (&error);
3245 MONO_OBJECT_SETREF (delegate, method_info, rm);
3248 if (!delegate->method_info || !delegate->method_info->method)
3249 g_assert_not_reached ();
3251 klass = delegate->object.vtable->klass;
3253 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3254 g_assert (method != NULL);
3256 sig = mono_signature_no_pinvoke (method);
3258 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3259 if (mono_error_set_pending_exception (&error))
3262 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3264 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."));
3268 if (ares->async_delegate != (MonoObject*)delegate) {
3269 mono_set_pending_exception (mono_get_exception_invalid_operation (
3270 "The IAsyncResult object provided does not match this delegate."));
3274 #ifndef DISABLE_REMOTING
3275 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3276 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3277 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3278 if (!mono_error_ok (&error)) {
3279 mono_error_set_pending_exception (&error);
3282 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3283 if (mono_error_set_pending_exception (&error))
3285 msg->call_type = CallType_EndInvoke;
3286 MONO_OBJECT_SETREF (msg, async_result, ares);
3287 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3288 if (!mono_error_ok (&error)) {
3289 mono_error_set_pending_exception (&error);
3295 res = mono_threadpool_end_invoke (ares, &out_args, &exc, &error);
3296 if (mono_error_set_pending_exception (&error))
3301 if (((MonoException*)exc)->stack_trace) {
3302 MonoError inner_error;
3303 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3304 if (is_ok (&inner_error)) {
3306 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3308 MonoString *tmp_str = mono_string_new_checked (domain, tmp, &inner_error);
3310 if (is_ok (&inner_error))
3311 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, tmp_str);
3313 if (!is_ok (&inner_error))
3314 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3316 mono_set_pending_exception ((MonoException*)exc);
3319 mono_method_return_message_restore (method, params, out_args, &error);
3320 mono_error_set_pending_exception (&error);
3327 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3329 MonoType *t = mono_type_get_underlying_type (return_type);
3331 if (return_type->byref)
3332 return_type = &mono_defaults.int_class->byval_arg;
3335 case MONO_TYPE_VOID:
3336 g_assert_not_reached ();
3339 case MONO_TYPE_STRING:
3340 case MONO_TYPE_CLASS:
3341 case MONO_TYPE_OBJECT:
3342 case MONO_TYPE_ARRAY:
3343 case MONO_TYPE_SZARRAY:
3347 case MONO_TYPE_BOOLEAN:
3350 case MONO_TYPE_CHAR:
3360 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3361 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3363 case MONO_TYPE_GENERICINST:
3364 if (!mono_type_generic_inst_is_valuetype (t))
3367 case MONO_TYPE_VALUETYPE: {
3368 MonoClass *klass = mono_class_from_mono_type (return_type);
3369 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3370 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3374 case MONO_TYPE_MVAR: {
3375 MonoClass *klass = mono_class_from_mono_type (return_type);
3376 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3380 g_warning ("type 0x%x not handled", return_type->type);
3381 g_assert_not_reached ();
3384 mono_mb_emit_byte (mb, CEE_RET);
3387 #endif /* DISABLE_JIT */
3390 * mono_marshal_get_delegate_end_invoke:
3393 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3395 MonoMethodSignature *sig;
3396 MonoMethodBuilder *mb;
3401 MonoGenericContext *ctx = NULL;
3402 MonoMethod *orig_method = NULL;
3404 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3405 !strcmp (method->name, "EndInvoke"));
3408 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3410 if (method->is_inflated) {
3411 orig_method = method;
3412 ctx = &((MonoMethodInflated*)method)->context;
3413 method = ((MonoMethodInflated*)method)->declaring;
3416 sig = mono_signature_no_pinvoke (method);
3422 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3423 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3427 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3428 (GHashFunc)mono_signature_hash,
3429 (GCompareFunc)mono_metadata_signature_equal);
3430 if ((res = mono_marshal_find_in_cache (cache, sig)))
3434 g_assert (sig->hasthis);
3436 name = mono_signature_to_name (sig, "end_invoke");
3438 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3440 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3444 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3446 mono_mb_emit_ldarg (mb, 0);
3447 mono_mb_emit_ldloc (mb, params_var);
3448 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3450 if (sig->ret->type == MONO_TYPE_VOID) {
3451 mono_mb_emit_byte (mb, CEE_POP);
3452 mono_mb_emit_byte (mb, CEE_RET);
3454 mono_mb_emit_restore_result (mb, sig->ret);
3459 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3460 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3462 res = mono_mb_create_and_cache (cache, sig,
3463 mb, sig, sig->param_count + 16);
3472 MonoMethodSignature *sig;
3474 } SignaturePointerPair;
3477 signature_pointer_pair_hash (gconstpointer data)
3479 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3481 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3485 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3487 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3488 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3492 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3494 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3496 return pair->pointer == user_data;
3500 free_signature_pointer_pair (SignaturePointerPair *pair)
3506 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3508 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3510 MonoMethodBuilder *mb;
3513 gpointer cache_key = NULL;
3514 SignaturePointerPair key = { NULL, NULL };
3515 SignaturePointerPair *new_key;
3516 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3517 int pos0, pos1, pos2;
3519 MonoClass *target_class = NULL;
3520 gboolean closed_over_null = FALSE;
3521 MonoGenericContext *ctx = NULL;
3522 MonoGenericContainer *container = NULL;
3523 MonoMethod *orig_method = method;
3525 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3529 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3530 !strcmp (method->name, "Invoke"));
3532 invoke_sig = sig = mono_signature_no_pinvoke (method);
3535 * If the delegate target is null, and the target method is not static, a virtual
3536 * call is made to that method with the first delegate argument as this. This is
3537 * a non-documented .NET feature.
3540 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3541 if (target_method->is_inflated) {
3543 MonoType *target_type;
3545 g_assert (method->signature->hasthis);
3546 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3547 mono_method_get_context (method), &error);
3548 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3549 target_class = mono_class_from_mono_type (target_type);
3551 target_class = target_method->klass;
3554 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3557 if (static_method_with_first_arg_bound) {
3558 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3559 g_assert (!callvirt);
3560 invoke_sig = mono_method_signature (target_method);
3564 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3566 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3567 ctx = &((MonoMethodInflated*)method)->context;
3568 method = ((MonoMethodInflated*)method)->declaring;
3570 container = mono_method_get_generic_container (method);
3572 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
3573 g_assert (container);
3575 invoke_sig = sig = mono_signature_no_pinvoke (method);
3582 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3583 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3586 cache_key = method->klass;
3587 } else if (static_method_with_first_arg_bound) {
3588 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3589 (GHashFunc)mono_signature_hash,
3590 (GCompareFunc)mono_metadata_signature_equal);
3592 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3594 res = mono_marshal_find_in_cache (cache, invoke_sig);
3597 cache_key = invoke_sig;
3598 } else if (callvirt) {
3599 GHashTable **cache_ptr;
3601 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3603 /* We need to cache the signature+method pair */
3604 mono_marshal_lock ();
3606 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3608 key.sig = invoke_sig;
3609 key.pointer = target_method;
3610 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3611 mono_marshal_unlock ();
3615 // Inflated methods should not be in this cache because it's not stored on the imageset.
3616 g_assert (!method->is_inflated);
3617 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3618 (GHashFunc)mono_signature_hash,
3619 (GCompareFunc)mono_metadata_signature_equal);
3620 res = mono_marshal_find_in_cache (cache, sig);
3626 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3627 static_sig->hasthis = 0;
3628 if (!static_method_with_first_arg_bound)
3629 invoke_sig = static_sig;
3631 if (static_method_with_first_arg_bound)
3632 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3633 else if (closed_over_null)
3634 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3636 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3638 name = mono_signature_to_name (invoke_sig, "invoke");
3640 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3642 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3646 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3648 /* allocate local 0 (object) */
3649 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3650 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3651 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3652 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3653 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3656 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3658 g_assert (sig->hasthis);
3661 * {type: sig->ret} res;
3662 * if (delegates == null) {
3663 * return this.<target> ( args .. );
3665 * int i = 0, len = this.delegates.Length;
3667 * res = this.delegates [i].Invoke ( args .. );
3668 * } while (++i < len);
3673 /* this wrapper can be used in unmanaged-managed transitions */
3674 emit_thread_interrupt_checkpoint (mb);
3676 /* delegates = this.delegates */
3677 mono_mb_emit_ldarg (mb, 0);
3678 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3679 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3680 mono_mb_emit_stloc (mb, local_delegates);
3682 /* if (delegates == null) */
3683 mono_mb_emit_ldloc (mb, local_delegates);
3684 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3686 /* return target.<target_method|method_ptr> ( args .. ); */
3688 /* target = d.target; */
3689 mono_mb_emit_ldarg (mb, 0);
3690 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3691 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3692 mono_mb_emit_stloc (mb, local_target);
3694 /*static methods with bound first arg can have null target and still be bound*/
3695 if (!static_method_with_first_arg_bound) {
3696 /* if target != null */
3697 mono_mb_emit_ldloc (mb, local_target);
3698 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3700 /* then call this->method_ptr nonstatic */
3703 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3705 mono_mb_emit_ldloc (mb, local_target);
3706 for (i = 0; i < sig->param_count; ++i)
3707 mono_mb_emit_ldarg (mb, i + 1);
3708 mono_mb_emit_ldarg (mb, 0);
3709 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3710 mono_mb_emit_byte (mb, CEE_LDIND_I);
3711 mono_mb_emit_ldarg (mb, 0);
3712 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3713 mono_mb_emit_byte (mb, CEE_LDIND_I);
3714 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3715 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3716 mono_mb_emit_byte (mb, CEE_RET);
3719 /* else [target == null] call this->method_ptr static */
3720 mono_mb_patch_branch (mb, pos0);
3724 if (!closed_over_null) {
3725 if (target_class->valuetype) {
3726 mono_mb_emit_ldarg (mb, 1);
3727 for (i = 1; i < sig->param_count; ++i)
3728 mono_mb_emit_ldarg (mb, i + 1);
3729 mono_mb_emit_op (mb, CEE_CALL, target_method);
3731 mono_mb_emit_ldarg (mb, 1);
3732 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3733 for (i = 1; i < sig->param_count; ++i)
3734 mono_mb_emit_ldarg (mb, i + 1);
3735 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3738 mono_mb_emit_byte (mb, CEE_LDNULL);
3739 for (i = 0; i < sig->param_count; ++i)
3740 mono_mb_emit_ldarg (mb, i + 1);
3741 mono_mb_emit_op (mb, CEE_CALL, target_method);
3744 if (static_method_with_first_arg_bound) {
3745 mono_mb_emit_ldloc (mb, local_target);
3746 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3747 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3749 for (i = 0; i < sig->param_count; ++i)
3750 mono_mb_emit_ldarg (mb, i + 1);
3751 mono_mb_emit_ldarg (mb, 0);
3752 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3753 mono_mb_emit_byte (mb, CEE_LDIND_I);
3754 mono_mb_emit_ldarg (mb, 0);
3755 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3756 mono_mb_emit_byte (mb, CEE_LDIND_I);
3757 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3758 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3761 mono_mb_emit_byte (mb, CEE_RET);
3763 /* else [delegates != null] */
3764 mono_mb_patch_branch (mb, pos2);
3766 /* len = delegates.Length; */
3767 mono_mb_emit_ldloc (mb, local_delegates);
3768 mono_mb_emit_byte (mb, CEE_LDLEN);
3769 mono_mb_emit_byte (mb, CEE_CONV_I4);
3770 mono_mb_emit_stloc (mb, local_len);
3773 mono_mb_emit_icon (mb, 0);
3774 mono_mb_emit_stloc (mb, local_i);
3776 pos1 = mono_mb_get_label (mb);
3778 /* d = delegates [i]; */
3779 mono_mb_emit_ldloc (mb, local_delegates);
3780 mono_mb_emit_ldloc (mb, local_i);
3781 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3782 mono_mb_emit_stloc (mb, local_d);
3784 /* res = d.Invoke ( args .. ); */
3785 mono_mb_emit_ldloc (mb, local_d);
3786 for (i = 0; i < sig->param_count; i++)
3787 mono_mb_emit_ldarg (mb, i + 1);
3789 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3792 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3793 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3796 mono_mb_emit_stloc (mb, local_res);
3799 mono_mb_emit_add_to_local (mb, local_i, 1);
3802 mono_mb_emit_ldloc (mb, local_i);
3803 mono_mb_emit_ldloc (mb, local_len);
3804 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3808 mono_mb_emit_ldloc (mb, local_res);
3809 mono_mb_emit_byte (mb, CEE_RET);
3811 mb->skip_visibility = 1;
3812 #endif /* DISABLE_JIT */
3814 info = mono_wrapper_info_create (mb, subtype);
3815 info->d.delegate_invoke.method = method;
3820 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3821 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3822 } else if (callvirt) {
3823 new_key = g_new0 (SignaturePointerPair, 1);
3826 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3830 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3834 /* mono_method_print_code (res); */
3840 * mono_marshal_get_delegate_invoke:
3841 * The returned method invokes all methods in a multicast delegate.
3844 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3846 gboolean callvirt = FALSE;
3847 gboolean static_method_with_first_arg_bound = FALSE;
3848 MonoMethod *target_method = NULL;
3849 MonoMethodSignature *sig;
3851 sig = mono_signature_no_pinvoke (method);
3853 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3855 target_method = del->method;
3858 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3859 static_method_with_first_arg_bound = TRUE;
3860 target_method = del->method;
3863 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3867 MonoMethodSignature *ctor_sig;
3868 MonoMethodSignature *sig;
3871 /* protected by the marshal lock, contains CtorSigPair pointers */
3872 static GSList *strsig_list = NULL;
3874 static MonoMethodSignature *
3875 lookup_string_ctor_signature (MonoMethodSignature *sig)
3877 MonoMethodSignature *callsig;
3881 mono_marshal_lock ();
3883 for (item = strsig_list; item; item = item->next) {
3884 cs = (CtorSigPair *)item->data;
3885 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3886 * because it is lock-free.
3888 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3893 mono_marshal_unlock ();
3897 static MonoMethodSignature *
3898 add_string_ctor_signature (MonoMethod *method)
3900 MonoMethodSignature *callsig;
3903 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3904 callsig->ret = &mono_defaults.string_class->byval_arg;
3905 cs = g_new (CtorSigPair, 1);
3907 cs->ctor_sig = mono_method_signature (method);
3909 mono_marshal_lock ();
3910 strsig_list = g_slist_prepend (strsig_list, cs);
3911 mono_marshal_unlock ();
3916 * mono_marshal_get_string_ctor_signature:
3918 * Return the modified signature used by string ctors (they return the newly created
3921 MonoMethodSignature*
3922 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3924 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3926 sig = add_string_ctor_signature (method);
3932 get_runtime_invoke_type (MonoType *t, gboolean ret)
3935 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3937 /* Can't share this with 'I' as that needs another indirection */
3938 return &mono_defaults.int_class->this_arg;
3941 if (MONO_TYPE_IS_REFERENCE (t))
3942 return &mono_defaults.object_class->byval_arg;
3945 /* The result needs to be boxed */
3950 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3953 return &mono_defaults.sbyte_class->byval_arg;
3955 return &mono_defaults.int16_class->byval_arg;
3957 return &mono_defaults.int32_class->byval_arg;
3960 return &mono_defaults.int64_class->byval_arg;
3961 case MONO_TYPE_BOOLEAN:
3962 return &mono_defaults.byte_class->byval_arg;
3963 case MONO_TYPE_CHAR:
3964 return &mono_defaults.uint16_class->byval_arg;
3966 return &mono_defaults.int_class->byval_arg;
3967 case MONO_TYPE_VALUETYPE:
3968 if (t->data.klass->enumtype) {
3969 t = mono_class_enum_basetype (t->data.klass);
3979 * mono_marshal_get_runtime_invoke_sig:
3981 * Return a common signature used for sharing runtime invoke wrappers.
3983 static MonoMethodSignature*
3984 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3986 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3989 res->generic_param_count = 0;
3990 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3991 for (i = 0; i < res->param_count; ++i)
3992 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3998 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4000 /* Can't share wrappers which return a vtype since it needs to be boxed */
4001 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))
4004 return mono_metadata_signature_equal (sig1, sig2);
4012 * Emit the call to the wrapper method from a runtime invoke wrapper.
4015 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
4016 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4018 gboolean virtual_, gboolean need_direct_wrapper)
4020 static MonoString *string_dummy = NULL;
4022 int *tmp_nullable_locals;
4023 gboolean void_ret = FALSE;
4024 gboolean string_ctor = method && method->string_ctor;
4026 /* to make it work with our special string constructors */
4027 if (!string_dummy) {
4028 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
4029 string_dummy = mono_string_new_wrapper ("dummy");
4033 g_assert (sig->hasthis);
4034 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
4039 if (mono_gc_is_moving ()) {
4040 mono_mb_emit_ptr (mb, &string_dummy);
4041 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4043 mono_mb_emit_ptr (mb, string_dummy);
4046 mono_mb_emit_ldarg (mb, 0);
4050 tmp_nullable_locals = g_new0 (int, sig->param_count);
4052 for (i = 0; i < sig->param_count; i++) {
4053 MonoType *t = sig->params [i];
4056 mono_mb_emit_ldarg (mb, 1);
4058 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4059 mono_mb_emit_byte (mb, CEE_ADD);
4063 mono_mb_emit_byte (mb, CEE_LDIND_I);
4064 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
4065 * So to make this work we unbox it to a local variablee and push a reference to that.
4067 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4068 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4070 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4071 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4072 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4077 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4078 type = sig->params [i]->type;
4082 case MONO_TYPE_BOOLEAN:
4086 case MONO_TYPE_CHAR:
4095 mono_mb_emit_byte (mb, CEE_LDIND_I);
4096 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4098 case MONO_TYPE_STRING:
4099 case MONO_TYPE_CLASS:
4100 case MONO_TYPE_ARRAY:
4102 case MONO_TYPE_SZARRAY:
4103 case MONO_TYPE_OBJECT:
4104 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4106 case MONO_TYPE_GENERICINST:
4107 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4108 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4113 case MONO_TYPE_VALUETYPE:
4114 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4115 type = mono_class_enum_basetype (t->data.klass)->type;
4118 mono_mb_emit_byte (mb, CEE_LDIND_I);
4119 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4120 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4121 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4122 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4124 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4128 g_assert_not_reached ();
4133 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4134 } else if (need_direct_wrapper) {
4135 mono_mb_emit_op (mb, CEE_CALL, method);
4137 mono_mb_emit_ldarg (mb, 3);
4138 mono_mb_emit_calli (mb, callsig);
4141 if (sig->ret->byref) {
4143 g_assert_not_reached ();
4146 switch (sig->ret->type) {
4147 case MONO_TYPE_VOID:
4151 case MONO_TYPE_BOOLEAN:
4152 case MONO_TYPE_CHAR:
4165 case MONO_TYPE_VALUETYPE:
4166 case MONO_TYPE_TYPEDBYREF:
4167 case MONO_TYPE_GENERICINST:
4168 /* box value types */
4169 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4171 case MONO_TYPE_STRING:
4172 case MONO_TYPE_CLASS:
4173 case MONO_TYPE_ARRAY:
4174 case MONO_TYPE_SZARRAY:
4175 case MONO_TYPE_OBJECT:
4179 /* The result is an IntPtr */
4180 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4183 g_assert_not_reached ();
4187 mono_mb_emit_stloc (mb, loc_res);
4189 /* Convert back nullable-byref arguments */
4190 for (i = 0; i < sig->param_count; i++) {
4191 MonoType *t = sig->params [i];
4194 * Box the result and put it back into the array, the caller will have
4195 * to obtain it from there.
4197 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4198 mono_mb_emit_ldarg (mb, 1);
4199 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4200 mono_mb_emit_byte (mb, CEE_ADD);
4202 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4203 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4205 mono_mb_emit_byte (mb, CEE_STIND_REF);
4209 g_free (tmp_nullable_locals);
4213 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
4214 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4215 gboolean virtual_, gboolean need_direct_wrapper)
4218 MonoExceptionClause *clause;
4219 int loc_res, loc_exc;
4221 /* The wrapper looks like this:
4227 * } catch (Exception e) {
4235 /* allocate local 0 (object) tmp */
4236 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4237 /* allocate local 1 (object) exc */
4238 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4240 /* *exc is assumed to be initialized to NULL by the caller */
4242 mono_mb_emit_byte (mb, CEE_LDARG_2);
4243 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4248 labels [1] = mono_mb_get_label (mb);
4249 emit_thread_force_interrupt_checkpoint (mb);
4250 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4252 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4254 /* Add a try clause around the call */
4255 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
4256 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4257 clause->data.catch_class = mono_defaults.exception_class;
4258 clause->try_offset = labels [1];
4259 clause->try_len = mono_mb_get_label (mb) - labels [1];
4261 clause->handler_offset = mono_mb_get_label (mb);
4264 mono_mb_emit_stloc (mb, loc_exc);
4265 mono_mb_emit_byte (mb, CEE_LDARG_2);
4266 mono_mb_emit_ldloc (mb, loc_exc);
4267 mono_mb_emit_byte (mb, CEE_STIND_REF);
4269 mono_mb_emit_branch (mb, CEE_LEAVE);
4271 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4273 mono_mb_set_clauses (mb, 1, clause);
4275 mono_mb_patch_branch (mb, labels [2]);
4276 mono_mb_emit_ldloc (mb, loc_res);
4277 mono_mb_emit_byte (mb, CEE_RET);
4282 mono_mb_patch_branch (mb, labels [0]);
4283 emit_thread_force_interrupt_checkpoint (mb);
4284 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4286 mono_mb_emit_ldloc (mb, 0);
4287 mono_mb_emit_byte (mb, CEE_RET);
4292 * mono_marshal_get_runtime_invoke:
4293 * Generates IL code for the runtime invoke function:
4295 * <code>MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)</code>
4297 * We also catch exceptions if \p exc is not NULL.
4298 * If \p virtual is TRUE, then \p method is invoked virtually on \p this. This is useful since
4299 * it means that the compiled code for \p method does not have to be looked up
4300 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4301 * its \p method argument.
4304 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4306 MonoMethodSignature *sig, *csig, *callsig;
4307 MonoMethodBuilder *mb;
4308 GHashTable *cache = NULL;
4309 MonoClass *target_klass;
4310 MonoMethod *res = NULL;
4311 static MonoMethodSignature *cctor_signature = NULL;
4312 static MonoMethodSignature *finalize_signature = NULL;
4314 const char *param_names [16];
4315 gboolean need_direct_wrapper = FALSE;
4320 if (!cctor_signature) {
4321 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4322 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4324 if (!finalize_signature) {
4325 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4326 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4327 finalize_signature->hasthis = 1;
4331 need_direct_wrapper = TRUE;
4334 * Use a separate cache indexed by methods to speed things up and to avoid the
4335 * boundless mempool growth caused by the signature_dup stuff below.
4338 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4340 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4342 res = mono_marshal_find_in_cache (cache, method);
4346 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4347 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4349 * Array Get/Set/Address methods. The JIT implements them using inline code
4350 * so we need to create an invoke wrapper which calls the method directly.
4352 need_direct_wrapper = TRUE;
4355 if (method->string_ctor) {
4356 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4358 callsig = add_string_ctor_signature (method);
4359 /* Can't share this as we push a string as this */
4360 need_direct_wrapper = TRUE;
4362 if (method_is_dynamic (method))
4363 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4365 callsig = mono_method_signature (method);
4368 sig = mono_method_signature (method);
4370 target_klass = get_wrapper_target_class (method->klass->image);
4372 /* Try to share wrappers for non-corlib methods with simple signatures */
4373 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4374 callsig = cctor_signature;
4375 target_klass = mono_defaults.object_class;
4376 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4377 callsig = finalize_signature;
4378 target_klass = mono_defaults.object_class;
4381 if (need_direct_wrapper) {
4382 /* Already searched at the start */
4384 MonoMethodSignature *tmp_sig;
4386 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4387 GHashTable **cache_table = NULL;
4389 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4390 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4392 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4394 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4395 (GCompareFunc)runtime_invoke_signature_equal);
4397 /* from mono_marshal_find_in_cache */
4398 mono_marshal_lock ();
4399 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4400 mono_marshal_unlock ();
4407 /* Make a copy of the signature from the image mempool */
4409 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4413 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4415 csig->ret = &mono_defaults.object_class->byval_arg;
4416 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4417 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4419 csig->params [0] = &mono_defaults.object_class->byval_arg;
4420 csig->params [1] = &mono_defaults.int_class->byval_arg;
4421 csig->params [2] = &mono_defaults.int_class->byval_arg;
4422 csig->params [3] = &mono_defaults.int_class->byval_arg;
4425 /* This is called from runtime code so it has to be cdecl */
4426 csig->call_convention = MONO_CALL_C;
4429 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4430 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4434 param_names [0] = "this";
4435 param_names [1] = "params";
4436 param_names [2] = "exc";
4437 param_names [3] = "method";
4438 mono_mb_set_param_names (mb, param_names);
4440 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4443 if (need_direct_wrapper) {
4445 mb->skip_visibility = 1;
4447 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4448 info->d.runtime_invoke.method = method;
4449 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4451 /* taken from mono_mb_create_and_cache */
4452 mono_marshal_lock ();
4453 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4454 mono_marshal_unlock ();
4456 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4457 info->d.runtime_invoke.sig = callsig;
4459 /* Somebody may have created it before us */
4462 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4464 mono_marshal_lock ();
4465 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4467 GHashTable *direct_cache;
4469 g_hash_table_insert (cache, callsig, res);
4470 /* Can't insert it into wrapper_hash since the key is a signature */
4471 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4473 g_hash_table_insert (direct_cache, method, res);
4475 mono_free_method (newm);
4477 mono_marshal_unlock ();
4480 /* end mono_mb_create_and_cache */
4489 * mono_marshal_get_runtime_invoke_dynamic:
4491 * Return a method which can be used to invoke managed methods from native code
4493 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4494 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4495 * ARGS should point to an architecture specific structure containing
4496 * the arguments and space for the return value.
4497 * The other arguments are the same as for runtime_invoke (), except that
4498 * ARGS should contain the this argument too.
4499 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4500 * is only one copy of it, which is useful in full-aot.
4503 mono_marshal_get_runtime_invoke_dynamic (void)
4505 static MonoMethod *method;
4506 MonoMethodSignature *csig;
4507 MonoExceptionClause *clause;
4508 MonoMethodBuilder *mb;
4516 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4518 csig->ret = &mono_defaults.void_class->byval_arg;
4519 csig->params [0] = &mono_defaults.int_class->byval_arg;
4520 csig->params [1] = &mono_defaults.int_class->byval_arg;
4521 csig->params [2] = &mono_defaults.int_class->byval_arg;
4522 csig->params [3] = &mono_defaults.int_class->byval_arg;
4524 name = g_strdup ("runtime_invoke_dynamic");
4525 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4529 /* allocate local 0 (object) tmp */
4530 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4531 /* allocate local 1 (object) exc */
4532 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4534 /* cond set *exc to null */
4535 mono_mb_emit_byte (mb, CEE_LDARG_1);
4536 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4537 mono_mb_emit_byte (mb, 3);
4538 mono_mb_emit_byte (mb, CEE_LDARG_1);
4539 mono_mb_emit_byte (mb, CEE_LDNULL);
4540 mono_mb_emit_byte (mb, CEE_STIND_REF);
4542 emit_thread_force_interrupt_checkpoint (mb);
4544 mono_mb_emit_byte (mb, CEE_LDARG_0);
4545 mono_mb_emit_byte (mb, CEE_LDARG_2);
4546 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4547 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4549 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4551 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4552 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4553 clause->try_len = mono_mb_get_label (mb);
4556 clause->data.filter_offset = mono_mb_get_label (mb);
4558 mono_mb_emit_byte (mb, CEE_POP);
4559 mono_mb_emit_byte (mb, CEE_LDARG_1);
4560 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4561 mono_mb_emit_byte (mb, CEE_PREFIX1);
4562 mono_mb_emit_byte (mb, CEE_CGT_UN);
4563 mono_mb_emit_byte (mb, CEE_PREFIX1);
4564 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4566 clause->handler_offset = mono_mb_get_label (mb);
4569 /* store exception */
4570 mono_mb_emit_stloc (mb, 1);
4572 mono_mb_emit_byte (mb, CEE_LDARG_1);
4573 mono_mb_emit_ldloc (mb, 1);
4574 mono_mb_emit_byte (mb, CEE_STIND_REF);
4576 mono_mb_emit_byte (mb, CEE_LDNULL);
4577 mono_mb_emit_stloc (mb, 0);
4579 mono_mb_emit_branch (mb, CEE_LEAVE);
4581 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4583 mono_mb_set_clauses (mb, 1, clause);
4586 mono_mb_patch_branch (mb, pos);
4587 //mono_mb_emit_ldloc (mb, 0);
4588 mono_mb_emit_byte (mb, CEE_RET);
4589 #endif /* DISABLE_JIT */
4591 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4593 mono_marshal_lock ();
4594 /* double-checked locking */
4596 method = mono_mb_create (mb, csig, 16, info);
4598 mono_marshal_unlock ();
4606 * mono_marshal_get_runtime_invoke_for_sig:
4608 * Return a runtime invoke wrapper for a given signature.
4611 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4613 MonoMethodSignature *csig, *callsig;
4614 MonoMethodBuilder *mb;
4616 GHashTable *cache = NULL;
4617 GHashTable **cache_table = NULL;
4618 MonoMethod *res = NULL;
4620 const char *param_names [16];
4623 /* A simplified version of mono_marshal_get_runtime_invoke */
4625 image = mono_defaults.corlib;
4627 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4629 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4631 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4632 (GCompareFunc)runtime_invoke_signature_equal);
4634 /* from mono_marshal_find_in_cache */
4635 mono_marshal_lock ();
4636 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4637 mono_marshal_unlock ();
4644 /* Make a copy of the signature from the image mempool */
4645 callsig = mono_metadata_signature_dup_full (image, callsig);
4647 csig = mono_metadata_signature_alloc (image, 4);
4648 csig->ret = &mono_defaults.object_class->byval_arg;
4649 csig->params [0] = &mono_defaults.object_class->byval_arg;
4650 csig->params [1] = &mono_defaults.int_class->byval_arg;
4651 csig->params [2] = &mono_defaults.int_class->byval_arg;
4652 csig->params [3] = &mono_defaults.int_class->byval_arg;
4655 /* This is called from runtime code so it has to be cdecl */
4656 csig->call_convention = MONO_CALL_C;
4659 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4660 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4664 param_names [0] = "this";
4665 param_names [1] = "params";
4666 param_names [2] = "exc";
4667 param_names [3] = "method";
4668 mono_mb_set_param_names (mb, param_names);
4670 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4673 /* taken from mono_mb_create_and_cache */
4674 mono_marshal_lock ();
4675 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4676 mono_marshal_unlock ();
4678 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4679 info->d.runtime_invoke.sig = callsig;
4681 /* Somebody may have created it before us */
4684 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4686 mono_marshal_lock ();
4687 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4690 g_hash_table_insert (cache, callsig, res);
4692 mono_free_method (newm);
4694 mono_marshal_unlock ();
4697 /* end mono_mb_create_and_cache */
4706 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4708 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4709 klass->name_space, klass->name);
4711 mono_mb_emit_exception_marshal_directive (mb, msg);
4716 * mono_marshal_get_icall_wrapper:
4717 * Generates IL code for the icall wrapper. The generated method
4718 * calls the unmanaged code in \p func.
4721 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4723 MonoMethodSignature *csig, *csig2;
4724 MonoMethodBuilder *mb;
4729 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4730 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4733 g_assert (sig->pinvoke);
4735 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4737 mb->method->save_lmf = 1;
4739 /* Add an explicit this argument */
4741 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4743 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4747 mono_mb_emit_byte (mb, CEE_LDARG_0);
4749 for (i = 0; i < sig->param_count; i++)
4750 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4752 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4753 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4754 mono_mb_emit_calli (mb, csig2);
4755 if (check_exceptions)
4756 emit_thread_interrupt_checkpoint (mb);
4757 mono_mb_emit_byte (mb, CEE_RET);
4760 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4762 if (csig->call_convention == MONO_CALL_VARARG)
4763 csig->call_convention = 0;
4765 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4766 info->d.icall.func = (gpointer)func;
4767 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4774 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4775 MonoMarshalSpec *spec,
4776 int conv_arg, MonoType **conv_arg_type,
4777 MarshalAction action)
4780 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4781 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4787 static MonoClass *ICustomMarshaler = NULL;
4788 static MonoMethod *cleanup_native, *cleanup_managed;
4789 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4790 MonoMethod *get_instance = NULL;
4791 MonoMethodBuilder *mb = m->mb;
4792 char *exception_msg = NULL;
4796 if (!ICustomMarshaler) {
4797 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4799 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4800 goto handle_exception;
4803 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4804 g_assert (cleanup_native);
4805 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4806 g_assert (cleanup_managed);
4807 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4808 g_assert (marshal_managed_to_native);
4809 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4810 g_assert (marshal_native_to_managed);
4812 mono_memory_barrier ();
4813 ICustomMarshaler = klass;
4816 if (spec->data.custom_data.image)
4817 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4819 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4820 g_assert (mtype != NULL);
4821 mono_error_assert_ok (&error);
4822 mklass = mono_class_from_mono_type (mtype);
4823 g_assert (mklass != NULL);
4825 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4826 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4828 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4830 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4831 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4832 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4833 (get_sig->params [0]->type != MONO_TYPE_STRING))
4834 get_instance = NULL;
4838 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);
4841 /* Throw exception and emit compensation code if neccesary */
4842 if (exception_msg) {
4844 case MARSHAL_ACTION_CONV_IN:
4845 case MARSHAL_ACTION_CONV_RESULT:
4846 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4847 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4848 mono_mb_emit_byte (mb, CEE_POP);
4850 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4853 case MARSHAL_ACTION_PUSH:
4854 mono_mb_emit_byte (mb, CEE_LDNULL);
4862 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4863 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4866 case MARSHAL_ACTION_CONV_IN:
4868 case MONO_TYPE_CLASS:
4869 case MONO_TYPE_OBJECT:
4870 case MONO_TYPE_STRING:
4871 case MONO_TYPE_ARRAY:
4872 case MONO_TYPE_SZARRAY:
4873 case MONO_TYPE_VALUETYPE:
4877 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4878 g_assert_not_reached ();
4882 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4884 mono_mb_emit_byte (mb, CEE_LDNULL);
4885 mono_mb_emit_stloc (mb, conv_arg);
4887 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4890 /* Minic MS.NET behavior */
4891 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4894 /* Check for null */
4895 mono_mb_emit_ldarg (mb, argnum);
4897 mono_mb_emit_byte (mb, CEE_LDIND_I);
4898 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4900 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4902 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4904 mono_mb_emit_ldarg (mb, argnum);
4906 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4908 if (t->type == MONO_TYPE_VALUETYPE) {
4910 * Since we can't determine the type of the argument, we
4911 * will assume the unmanaged function takes a pointer.
4913 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4915 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4918 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4919 mono_mb_emit_stloc (mb, conv_arg);
4921 mono_mb_patch_branch (mb, pos2);
4924 case MARSHAL_ACTION_CONV_OUT:
4925 /* Check for null */
4926 mono_mb_emit_ldloc (mb, conv_arg);
4927 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4930 mono_mb_emit_ldarg (mb, argnum);
4932 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4934 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4936 mono_mb_emit_ldloc (mb, conv_arg);
4937 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4938 mono_mb_emit_byte (mb, CEE_STIND_REF);
4939 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4940 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4942 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4944 mono_mb_emit_ldloc (mb, conv_arg);
4945 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4947 /* We have nowhere to store the result */
4948 mono_mb_emit_byte (mb, CEE_POP);
4951 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4953 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4955 mono_mb_emit_ldloc (mb, conv_arg);
4957 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4959 mono_mb_patch_branch (mb, pos2);
4962 case MARSHAL_ACTION_PUSH:
4964 mono_mb_emit_ldloc_addr (mb, conv_arg);
4966 mono_mb_emit_ldloc (mb, conv_arg);
4969 case MARSHAL_ACTION_CONV_RESULT:
4970 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4972 mono_mb_emit_stloc (mb, 3);
4974 mono_mb_emit_ldloc (mb, 3);
4975 mono_mb_emit_stloc (mb, loc1);
4977 /* Check for null */
4978 mono_mb_emit_ldloc (mb, 3);
4979 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4981 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4983 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4984 mono_mb_emit_byte (mb, CEE_DUP);
4986 mono_mb_emit_ldloc (mb, 3);
4987 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4988 mono_mb_emit_stloc (mb, 3);
4990 mono_mb_emit_ldloc (mb, loc1);
4991 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4993 mono_mb_patch_branch (mb, pos2);
4996 case MARSHAL_ACTION_MANAGED_CONV_IN:
4997 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4999 mono_mb_emit_byte (mb, CEE_LDNULL);
5000 mono_mb_emit_stloc (mb, conv_arg);
5002 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5005 /* Check for null */
5006 mono_mb_emit_ldarg (mb, argnum);
5008 mono_mb_emit_byte (mb, CEE_LDIND_I);
5009 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5011 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5012 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5014 mono_mb_emit_ldarg (mb, argnum);
5016 mono_mb_emit_byte (mb, CEE_LDIND_I);
5018 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5019 mono_mb_emit_stloc (mb, conv_arg);
5021 mono_mb_patch_branch (mb, pos2);
5024 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5025 g_assert (!t->byref);
5027 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5029 mono_mb_emit_stloc (mb, 3);
5031 mono_mb_emit_ldloc (mb, 3);
5032 mono_mb_emit_stloc (mb, loc1);
5034 /* Check for null */
5035 mono_mb_emit_ldloc (mb, 3);
5036 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5038 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5039 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5040 mono_mb_emit_byte (mb, CEE_DUP);
5042 mono_mb_emit_ldloc (mb, 3);
5043 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5044 mono_mb_emit_stloc (mb, 3);
5046 mono_mb_emit_ldloc (mb, loc1);
5047 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5049 mono_mb_patch_branch (mb, pos2);
5052 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5054 /* Check for null */
5055 mono_mb_emit_ldloc (mb, conv_arg);
5056 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5059 mono_mb_emit_ldarg (mb, argnum);
5061 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5063 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5065 mono_mb_emit_ldloc (mb, conv_arg);
5066 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5067 mono_mb_emit_byte (mb, CEE_STIND_I);
5070 /* Call CleanUpManagedData */
5071 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5073 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5075 mono_mb_emit_ldloc (mb, conv_arg);
5076 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5078 mono_mb_patch_branch (mb, pos2);
5082 g_assert_not_reached ();
5090 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5091 MonoMarshalSpec *spec,
5092 int conv_arg, MonoType **conv_arg_type,
5093 MarshalAction action)
5096 MonoMethodBuilder *mb = m->mb;
5099 case MARSHAL_ACTION_CONV_IN: {
5100 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5102 g_assert (t->type == MONO_TYPE_OBJECT);
5103 g_assert (!t->byref);
5105 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5106 mono_mb_emit_ldarg (mb, argnum);
5107 mono_mb_emit_icon (mb, encoding);
5108 mono_mb_emit_icon (mb, t->attrs);
5109 mono_mb_emit_icall (mb, mono_marshal_asany);
5110 mono_mb_emit_stloc (mb, conv_arg);
5114 case MARSHAL_ACTION_PUSH:
5115 mono_mb_emit_ldloc (mb, conv_arg);
5118 case MARSHAL_ACTION_CONV_OUT: {
5119 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5121 mono_mb_emit_ldarg (mb, argnum);
5122 mono_mb_emit_ldloc (mb, conv_arg);
5123 mono_mb_emit_icon (mb, encoding);
5124 mono_mb_emit_icon (mb, t->attrs);
5125 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5130 g_assert_not_reached ();
5137 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5138 MonoMarshalSpec *spec,
5139 int conv_arg, MonoType **conv_arg_type,
5140 MarshalAction action)
5143 MonoMethodBuilder *mb = m->mb;
5144 MonoClass *klass, *date_time_class;
5147 klass = mono_class_from_mono_type (t);
5149 date_time_class = mono_class_get_date_time_class ();
5152 case MARSHAL_ACTION_CONV_IN:
5153 if (klass == date_time_class) {
5154 /* Convert it to an OLE DATE type */
5155 static MonoMethod *to_oadate;
5158 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5159 g_assert (to_oadate);
5161 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5164 mono_mb_emit_ldarg (mb, argnum);
5165 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5168 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5170 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5172 mono_mb_emit_ldarg_addr (mb, argnum);
5173 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5174 mono_mb_emit_stloc (mb, conv_arg);
5178 mono_mb_patch_branch (mb, pos);
5182 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5185 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5187 /* store the address of the source into local variable 0 */
5189 mono_mb_emit_ldarg (mb, argnum);
5191 mono_mb_emit_ldarg_addr (mb, argnum);
5193 mono_mb_emit_stloc (mb, 0);
5195 /* allocate space for the native struct and
5196 * store the address into local variable 1 (dest) */
5197 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5198 mono_mb_emit_byte (mb, CEE_PREFIX1);
5199 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5200 mono_mb_emit_stloc (mb, conv_arg);
5203 mono_mb_emit_ldloc (mb, 0);
5204 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5207 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5209 mono_mb_emit_ldloc (mb, conv_arg);
5210 mono_mb_emit_stloc (mb, 1);
5212 /* emit valuetype conversion code */
5213 emit_struct_conv (mb, klass, FALSE);
5217 mono_mb_patch_branch (mb, pos);
5220 case MARSHAL_ACTION_PUSH:
5221 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5223 g_assert (!t->byref);
5225 /* Have to change the signature since the vtype is passed byref */
5226 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5228 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5229 mono_mb_emit_ldarg_addr (mb, argnum);
5231 mono_mb_emit_ldloc (mb, conv_arg);
5235 if (klass == date_time_class) {
5237 mono_mb_emit_ldloc_addr (mb, conv_arg);
5239 mono_mb_emit_ldloc (mb, conv_arg);
5243 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5244 mono_mb_emit_ldarg (mb, argnum);
5247 mono_mb_emit_ldloc (mb, conv_arg);
5249 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5250 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5254 case MARSHAL_ACTION_CONV_OUT:
5255 if (klass == date_time_class) {
5256 /* Convert from an OLE DATE type */
5257 static MonoMethod *from_oadate;
5262 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5264 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5265 g_assert (from_oadate);
5267 mono_mb_emit_ldarg (mb, argnum);
5268 mono_mb_emit_ldloc (mb, conv_arg);
5269 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5270 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5275 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5279 /* dst = argument */
5280 mono_mb_emit_ldarg (mb, argnum);
5281 mono_mb_emit_stloc (mb, 1);
5283 mono_mb_emit_ldloc (mb, 1);
5284 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5286 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5287 /* src = tmp_locals [i] */
5288 mono_mb_emit_ldloc (mb, conv_arg);
5289 mono_mb_emit_stloc (mb, 0);
5291 /* emit valuetype conversion code */
5292 emit_struct_conv (mb, klass, TRUE);
5296 emit_struct_free (mb, klass, conv_arg);
5299 mono_mb_patch_branch (mb, pos);
5302 case MARSHAL_ACTION_CONV_RESULT:
5303 if (mono_class_is_explicit_layout (klass) || klass->blittable) {
5304 mono_mb_emit_stloc (mb, 3);
5308 /* load pointer to returned value type */
5309 g_assert (m->vtaddr_var);
5310 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5311 /* store the address of the source into local variable 0 */
5312 mono_mb_emit_stloc (mb, 0);
5314 mono_mb_emit_ldloc_addr (mb, 3);
5315 mono_mb_emit_stloc (mb, 1);
5317 /* emit valuetype conversion code */
5318 emit_struct_conv (mb, klass, TRUE);
5321 case MARSHAL_ACTION_MANAGED_CONV_IN:
5322 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5327 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5329 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5333 mono_mb_emit_ldarg (mb, argnum);
5335 mono_mb_emit_ldarg_addr (mb, argnum);
5336 mono_mb_emit_stloc (mb, 0);
5339 mono_mb_emit_ldloc (mb, 0);
5340 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5343 mono_mb_emit_ldloc_addr (mb, conv_arg);
5344 mono_mb_emit_stloc (mb, 1);
5346 /* emit valuetype conversion code */
5347 emit_struct_conv (mb, klass, TRUE);
5350 mono_mb_patch_branch (mb, pos);
5353 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5354 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5356 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5359 /* Check for null */
5360 mono_mb_emit_ldarg (mb, argnum);
5361 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5364 mono_mb_emit_ldloc_addr (mb, conv_arg);
5365 mono_mb_emit_stloc (mb, 0);
5368 mono_mb_emit_ldarg (mb, argnum);
5369 mono_mb_emit_stloc (mb, 1);
5371 /* emit valuetype conversion code */
5372 emit_struct_conv (mb, klass, FALSE);
5374 mono_mb_patch_branch (mb, pos2);
5377 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5378 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5379 mono_mb_emit_stloc (mb, 3);
5384 /* load pointer to returned value type */
5385 g_assert (m->vtaddr_var);
5386 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5388 /* store the address of the source into local variable 0 */
5389 mono_mb_emit_stloc (mb, 0);
5390 /* allocate space for the native struct and
5391 * store the address into dst_ptr */
5392 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5393 m->retobj_class = klass;
5394 g_assert (m->retobj_var);
5395 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5396 mono_mb_emit_byte (mb, CEE_CONV_I);
5397 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5398 mono_mb_emit_stloc (mb, 1);
5399 mono_mb_emit_ldloc (mb, 1);
5400 mono_mb_emit_stloc (mb, m->retobj_var);
5402 /* emit valuetype conversion code */
5403 emit_struct_conv (mb, klass, FALSE);
5407 g_assert_not_reached ();
5414 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5415 MonoMarshalSpec *spec,
5416 int conv_arg, MonoType **conv_arg_type,
5417 MarshalAction action)
5421 case MARSHAL_ACTION_CONV_IN:
5422 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5424 case MARSHAL_ACTION_MANAGED_CONV_IN:
5425 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5429 MonoMethodBuilder *mb = m->mb;
5430 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5431 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5435 case MARSHAL_ACTION_CONV_IN:
5436 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5437 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5440 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5443 mono_mb_emit_ldarg (mb, argnum);
5444 mono_mb_emit_byte (mb, CEE_LDIND_I);
5446 mono_mb_emit_ldarg (mb, argnum);
5449 if (conv == MONO_MARSHAL_CONV_INVALID) {
5450 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5451 mono_mb_emit_exception_marshal_directive (mb, msg);
5453 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5455 mono_mb_emit_stloc (mb, conv_arg);
5459 case MARSHAL_ACTION_CONV_OUT:
5460 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5461 if (conv == MONO_MARSHAL_CONV_INVALID) {
5462 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5463 mono_mb_emit_exception_marshal_directive (mb, msg);
5467 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5468 static MonoMethod *m;
5471 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5476 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5477 mono_mb_emit_exception_marshal_directive (mb, msg);
5482 * Have to allocate a new string with the same length as the original, and
5483 * copy the contents of the buffer pointed to by CONV_ARG into it.
5485 g_assert (t->byref);
5486 mono_mb_emit_ldarg (mb, argnum);
5487 mono_mb_emit_ldloc (mb, conv_arg);
5488 mono_mb_emit_ldarg (mb, argnum);
5489 mono_mb_emit_byte (mb, CEE_LDIND_I);
5490 mono_mb_emit_managed_call (mb, m, NULL);
5491 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5492 mono_mb_emit_byte (mb, CEE_STIND_REF);
5493 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5495 mono_mb_emit_ldarg (mb, argnum);
5496 mono_mb_emit_ldloc (mb, conv_arg);
5497 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5498 mono_mb_emit_byte (mb, stind_op);
5503 mono_mb_emit_ldloc (mb, conv_arg);
5504 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5505 mono_mb_emit_icall (mb, mono_free_bstr);
5507 mono_mb_emit_icall (mb, mono_marshal_free);
5511 case MARSHAL_ACTION_PUSH:
5512 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5513 mono_mb_emit_ldloc_addr (mb, conv_arg);
5515 mono_mb_emit_ldloc (mb, conv_arg);
5518 case MARSHAL_ACTION_CONV_RESULT:
5519 mono_mb_emit_stloc (mb, 0);
5521 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5522 if (conv == MONO_MARSHAL_CONV_INVALID) {
5523 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5524 mono_mb_emit_exception_marshal_directive (mb, msg);
5528 mono_mb_emit_ldloc (mb, 0);
5529 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5530 mono_mb_emit_stloc (mb, 3);
5532 /* free the string */
5533 mono_mb_emit_ldloc (mb, 0);
5534 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5535 mono_mb_emit_icall (mb, mono_free_bstr);
5537 mono_mb_emit_icall (mb, mono_marshal_free);
5540 case MARSHAL_ACTION_MANAGED_CONV_IN:
5541 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5543 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5546 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5550 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5551 if (conv == MONO_MARSHAL_CONV_INVALID) {
5552 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5553 mono_mb_emit_exception_marshal_directive (mb, msg);
5557 mono_mb_emit_ldarg (mb, argnum);
5559 mono_mb_emit_byte (mb, CEE_LDIND_I);
5560 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5561 mono_mb_emit_stloc (mb, conv_arg);
5564 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5568 mono_mb_emit_ldarg (mb, argnum);
5569 mono_mb_emit_ldloc (mb, conv_arg);
5570 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5571 mono_mb_emit_byte (mb, stind_op);
5576 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5577 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5578 /* We need to make a copy so the caller is able to free it */
5579 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5581 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5582 mono_mb_emit_stloc (mb, 3);
5586 g_assert_not_reached ();
5594 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5595 MonoMarshalSpec *spec, int conv_arg,
5596 MonoType **conv_arg_type, MarshalAction action)
5599 if (action == MARSHAL_ACTION_CONV_IN)
5600 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5602 MonoMethodBuilder *mb = m->mb;
5605 case MARSHAL_ACTION_CONV_IN: {
5606 MonoType *intptr_type;
5607 int dar_release_slot, pos;
5609 intptr_type = &mono_defaults.int_class->byval_arg;
5610 conv_arg = mono_mb_add_local (mb, intptr_type);
5611 *conv_arg_type = intptr_type;
5613 if (!sh_dangerous_add_ref)
5614 init_safe_handle ();
5616 mono_mb_emit_ldarg (mb, argnum);
5617 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5618 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5620 mono_mb_patch_branch (mb, pos);
5623 * My tests in show that ref SafeHandles are not really
5624 * passed as ref objects. Instead a NULL is passed as the
5627 mono_mb_emit_icon (mb, 0);
5628 mono_mb_emit_stloc (mb, conv_arg);
5632 /* Create local to hold the ref parameter to DangerousAddRef */
5633 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5635 /* set release = false; */
5636 mono_mb_emit_icon (mb, 0);
5637 mono_mb_emit_stloc (mb, dar_release_slot);
5639 /* safehandle.DangerousAddRef (ref release) */
5640 mono_mb_emit_ldarg (mb, argnum);
5641 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5642 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5644 /* Pull the handle field from SafeHandle */
5645 mono_mb_emit_ldarg (mb, argnum);
5646 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5647 mono_mb_emit_byte (mb, CEE_LDIND_I);
5648 mono_mb_emit_stloc (mb, conv_arg);
5653 case MARSHAL_ACTION_PUSH:
5655 mono_mb_emit_ldloc_addr (mb, conv_arg);
5657 mono_mb_emit_ldloc (mb, conv_arg);
5660 case MARSHAL_ACTION_CONV_OUT: {
5661 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5662 int dar_release_slot = conv_arg + 1;
5665 if (!sh_dangerous_release)
5666 init_safe_handle ();
5672 * My tests indicate that ref SafeHandles parameters are not actually
5673 * passed by ref, but instead a new Handle is created regardless of
5674 * whether a change happens in the unmanaged side.
5676 * Also, the Handle is created before calling into unmanaged code,
5677 * but we do not support that mechanism (getting to the original
5678 * handle) and it makes no difference where we create this
5680 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5682 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5685 /* refval = new SafeHandleDerived ()*/
5686 mono_mb_emit_ldarg (mb, argnum);
5687 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5688 mono_mb_emit_byte (mb, CEE_STIND_REF);
5690 /* refval.handle = returned_handle */
5691 mono_mb_emit_ldarg (mb, argnum);
5692 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5693 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5694 mono_mb_emit_ldloc (mb, conv_arg);
5695 mono_mb_emit_byte (mb, CEE_STIND_I);
5697 mono_mb_emit_ldloc (mb, dar_release_slot);
5698 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5699 mono_mb_emit_ldarg (mb, argnum);
5700 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5701 mono_mb_patch_branch (mb, label_next);
5706 case MARSHAL_ACTION_CONV_RESULT: {
5707 MonoMethod *ctor = NULL;
5708 int intptr_handle_slot;
5710 if (mono_class_is_abstract (t->data.klass)) {
5711 mono_mb_emit_byte (mb, CEE_POP);
5712 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5716 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5718 mono_mb_emit_byte (mb, CEE_POP);
5719 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5722 /* Store the IntPtr results into a local */
5723 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5724 mono_mb_emit_stloc (mb, intptr_handle_slot);
5726 /* Create return value */
5727 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5728 mono_mb_emit_stloc (mb, 3);
5730 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5731 mono_mb_emit_ldloc (mb, 3);
5732 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5733 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5734 mono_mb_emit_byte (mb, CEE_STIND_I);
5738 case MARSHAL_ACTION_MANAGED_CONV_IN:
5739 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5742 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5743 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5746 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5747 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5750 printf ("Unhandled case for MarshalAction: %d\n", action);
5758 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5759 MonoMarshalSpec *spec, int conv_arg,
5760 MonoType **conv_arg_type, MarshalAction action)
5763 if (action == MARSHAL_ACTION_CONV_IN)
5764 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5766 MonoMethodBuilder *mb = m->mb;
5769 case MARSHAL_ACTION_CONV_IN: {
5770 MonoType *intptr_type;
5772 intptr_type = &mono_defaults.int_class->byval_arg;
5773 conv_arg = mono_mb_add_local (mb, intptr_type);
5774 *conv_arg_type = intptr_type;
5777 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5778 mono_mb_emit_exception_marshal_directive (mb, msg);
5781 mono_mb_emit_ldarg_addr (mb, argnum);
5782 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5783 mono_mb_emit_byte (mb, CEE_ADD);
5784 mono_mb_emit_byte (mb, CEE_LDIND_I);
5785 mono_mb_emit_stloc (mb, conv_arg);
5789 case MARSHAL_ACTION_PUSH:
5790 mono_mb_emit_ldloc (mb, conv_arg);
5793 case MARSHAL_ACTION_CONV_OUT: {
5794 /* no resource release required */
5798 case MARSHAL_ACTION_CONV_RESULT: {
5799 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5800 mono_mb_emit_exception_marshal_directive (mb, msg);
5804 case MARSHAL_ACTION_MANAGED_CONV_IN:
5805 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5808 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5809 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5812 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5813 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5816 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5824 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5825 MonoMarshalSpec *spec,
5826 int conv_arg, MonoType **conv_arg_type,
5827 MarshalAction action)
5830 if (action == MARSHAL_ACTION_CONV_IN)
5831 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5833 MonoMethodBuilder *mb = m->mb;
5834 MonoClass *klass = mono_class_from_mono_type (t);
5838 case MARSHAL_ACTION_CONV_IN:
5839 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5840 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5842 m->orig_conv_args [argnum] = 0;
5844 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5845 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5846 mono_mb_emit_exception_marshal_directive (mb, msg);
5850 if (klass->delegate) {
5852 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5853 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5854 mono_mb_emit_exception_marshal_directive (mb, msg);
5856 mono_mb_emit_byte (mb, CEE_LDNULL);
5857 mono_mb_emit_stloc (mb, conv_arg);
5859 mono_mb_emit_ldarg (mb, argnum);
5860 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5861 mono_mb_emit_stloc (mb, conv_arg);
5863 } else if (klass == mono_defaults.stringbuilder_class) {
5864 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5865 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5869 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5870 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5871 mono_mb_emit_exception_marshal_directive (mb, msg);
5877 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5880 if (conv == MONO_MARSHAL_CONV_INVALID) {
5881 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5882 mono_mb_emit_exception_marshal_directive (mb, msg);
5886 mono_mb_emit_ldarg (mb, argnum);
5888 mono_mb_emit_byte (mb, CEE_LDIND_I);
5890 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5891 mono_mb_emit_stloc (mb, conv_arg);
5892 } else if (klass->blittable) {
5893 mono_mb_emit_byte (mb, CEE_LDNULL);
5894 mono_mb_emit_stloc (mb, conv_arg);
5896 mono_mb_emit_ldarg (mb, argnum);
5897 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5899 mono_mb_emit_ldarg (mb, argnum);
5900 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5901 mono_mb_emit_stloc (mb, conv_arg);
5903 mono_mb_patch_branch (mb, pos);
5906 mono_mb_emit_byte (mb, CEE_LDNULL);
5907 mono_mb_emit_stloc (mb, conv_arg);
5910 /* we dont need any conversions for out parameters */
5911 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5914 mono_mb_emit_ldarg (mb, argnum);
5915 mono_mb_emit_byte (mb, CEE_LDIND_I);
5918 mono_mb_emit_ldarg (mb, argnum);
5919 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5920 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5923 /* store the address of the source into local variable 0 */
5924 mono_mb_emit_stloc (mb, 0);
5925 mono_mb_emit_ldloc (mb, 0);
5926 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5928 /* allocate space for the native struct and store the address */
5929 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5930 mono_mb_emit_byte (mb, CEE_PREFIX1);
5931 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5932 mono_mb_emit_stloc (mb, conv_arg);
5935 /* Need to store the original buffer so we can free it later */
5936 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5937 mono_mb_emit_ldloc (mb, conv_arg);
5938 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5941 /* set the src_ptr */
5942 mono_mb_emit_ldloc (mb, 0);
5943 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5944 mono_mb_emit_stloc (mb, 0);
5947 mono_mb_emit_ldloc (mb, conv_arg);
5948 mono_mb_emit_stloc (mb, 1);
5950 /* emit valuetype conversion code */
5951 emit_struct_conv (mb, klass, FALSE);
5953 mono_mb_patch_branch (mb, pos);
5957 case MARSHAL_ACTION_CONV_OUT:
5958 if (klass == mono_defaults.stringbuilder_class) {
5960 MonoMarshalNative encoding;
5961 MonoMarshalConv conv;
5963 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5964 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5966 g_assert (encoding != -1);
5969 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5973 mono_mb_emit_ldarg (mb, argnum);
5974 mono_mb_emit_ldloc (mb, conv_arg);
5977 case MONO_NATIVE_LPWSTR:
5978 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5980 case MONO_NATIVE_LPSTR:
5981 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5983 case MONO_NATIVE_UTF8STR:
5984 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5987 g_assert_not_reached ();
5990 mono_mb_emit_byte (mb, CEE_STIND_REF);
5992 mono_mb_emit_ldarg (mb, argnum);
5993 mono_mb_emit_ldloc (mb, conv_arg);
5995 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5999 mono_mb_emit_ldloc (mb, conv_arg);
6000 mono_mb_emit_icall (mb, mono_marshal_free);
6005 if (klass->delegate) {
6007 mono_mb_emit_ldarg (mb, argnum);
6008 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6009 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6010 mono_mb_emit_ldloc (mb, conv_arg);
6011 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6012 mono_mb_emit_byte (mb, CEE_STIND_REF);
6017 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6018 /* allocate a new object */
6019 mono_mb_emit_ldarg (mb, argnum);
6020 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6021 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6022 mono_mb_emit_byte (mb, CEE_STIND_REF);
6025 /* dst = *argument */
6026 mono_mb_emit_ldarg (mb, argnum);
6029 mono_mb_emit_byte (mb, CEE_LDIND_I);
6031 mono_mb_emit_stloc (mb, 1);
6033 mono_mb_emit_ldloc (mb, 1);
6034 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6036 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6037 mono_mb_emit_ldloc (mb, 1);
6038 mono_mb_emit_icon (mb, sizeof (MonoObject));
6039 mono_mb_emit_byte (mb, CEE_ADD);
6040 mono_mb_emit_stloc (mb, 1);
6042 /* src = tmp_locals [i] */
6043 mono_mb_emit_ldloc (mb, conv_arg);
6044 mono_mb_emit_stloc (mb, 0);
6046 /* emit valuetype conversion code */
6047 emit_struct_conv (mb, klass, TRUE);
6049 /* Free the structure returned by the native code */
6050 emit_struct_free (mb, klass, conv_arg);
6052 if (m->orig_conv_args [argnum]) {
6054 * If the native function changed the pointer, then free
6055 * the original structure plus the new pointer.
6057 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6058 mono_mb_emit_ldloc (mb, conv_arg);
6059 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6061 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6062 g_assert (m->orig_conv_args [argnum]);
6064 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6067 mono_mb_emit_ldloc (mb, conv_arg);
6068 mono_mb_emit_icall (mb, mono_marshal_free);
6070 mono_mb_patch_branch (mb, pos2);
6074 /* Free the original structure passed to native code */
6075 emit_struct_free (mb, klass, conv_arg);
6077 mono_mb_patch_branch (mb, pos);
6080 case MARSHAL_ACTION_PUSH:
6082 mono_mb_emit_ldloc_addr (mb, conv_arg);
6084 mono_mb_emit_ldloc (mb, conv_arg);
6087 case MARSHAL_ACTION_CONV_RESULT:
6088 if (klass->delegate) {
6089 g_assert (!t->byref);
6090 mono_mb_emit_stloc (mb, 0);
6091 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6092 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6093 mono_mb_emit_ldloc (mb, 0);
6094 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6095 mono_mb_emit_stloc (mb, 3);
6096 } else if (klass == mono_defaults.stringbuilder_class){
6100 mono_mb_emit_stloc (mb, 0);
6102 /* Make a copy since emit_conv modifies local 0 */
6103 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6104 mono_mb_emit_ldloc (mb, 0);
6105 mono_mb_emit_stloc (mb, loc);
6107 mono_mb_emit_byte (mb, CEE_LDNULL);
6108 mono_mb_emit_stloc (mb, 3);
6110 mono_mb_emit_ldloc (mb, 0);
6111 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6113 /* allocate result object */
6115 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6116 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6117 mono_mb_emit_stloc (mb, 3);
6121 mono_mb_emit_ldloc (mb, 3);
6122 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6123 mono_mb_emit_stloc (mb, 1);
6125 /* emit conversion code */
6126 emit_struct_conv (mb, klass, TRUE);
6128 emit_struct_free (mb, klass, loc);
6130 /* Free the pointer allocated by unmanaged code */
6131 mono_mb_emit_ldloc (mb, loc);
6132 mono_mb_emit_icall (mb, mono_marshal_free);
6133 mono_mb_patch_branch (mb, pos);
6137 case MARSHAL_ACTION_MANAGED_CONV_IN:
6138 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6140 if (klass->delegate) {
6141 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6142 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6143 mono_mb_emit_ldarg (mb, argnum);
6145 mono_mb_emit_byte (mb, CEE_LDIND_I);
6146 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6147 mono_mb_emit_stloc (mb, conv_arg);
6151 if (klass == mono_defaults.stringbuilder_class) {
6152 MonoMarshalNative encoding;
6154 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6157 g_assert (encoding == MONO_NATIVE_LPSTR || encoding == MONO_NATIVE_UTF8STR);
6159 g_assert (!t->byref);
6160 g_assert (encoding != -1);
6162 mono_mb_emit_ldarg (mb, argnum);
6163 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6164 mono_mb_emit_stloc (mb, conv_arg);
6168 /* The class can not have an automatic layout */
6169 if (mono_class_is_auto_layout (klass)) {
6170 mono_mb_emit_auto_layout_exception (mb, klass);
6174 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6175 mono_mb_emit_byte (mb, CEE_LDNULL);
6176 mono_mb_emit_stloc (mb, conv_arg);
6181 mono_mb_emit_ldarg (mb, argnum);
6185 /* Check for NULL and raise an exception */
6186 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6188 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6190 mono_mb_patch_branch (mb, pos2);
6191 mono_mb_emit_ldarg (mb, argnum);
6192 mono_mb_emit_byte (mb, CEE_LDIND_I);
6195 mono_mb_emit_stloc (mb, 0);
6197 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6198 mono_mb_emit_stloc (mb, conv_arg);
6200 mono_mb_emit_ldloc (mb, 0);
6201 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6203 /* Create and set dst */
6204 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6205 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6206 mono_mb_emit_stloc (mb, conv_arg);
6207 mono_mb_emit_ldloc (mb, conv_arg);
6208 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6209 mono_mb_emit_stloc (mb, 1);
6211 /* emit valuetype conversion code */
6212 emit_struct_conv (mb, klass, TRUE);
6214 mono_mb_patch_branch (mb, pos);
6217 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6218 if (klass->delegate) {
6221 mono_mb_emit_ldarg (mb, argnum);
6222 mono_mb_emit_ldloc (mb, conv_arg);
6223 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
6224 mono_mb_emit_byte (mb, stind_op);
6230 /* Check for null */
6231 mono_mb_emit_ldloc (mb, conv_arg);
6232 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6233 mono_mb_emit_ldarg (mb, argnum);
6234 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6235 mono_mb_emit_byte (mb, CEE_STIND_REF);
6236 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6238 mono_mb_patch_branch (mb, pos);
6241 mono_mb_emit_ldloc (mb, conv_arg);
6242 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6243 mono_mb_emit_stloc (mb, 0);
6245 /* Allocate and set dest */
6246 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6247 mono_mb_emit_byte (mb, CEE_CONV_I);
6248 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6249 mono_mb_emit_stloc (mb, 1);
6251 /* Update argument pointer */
6252 mono_mb_emit_ldarg (mb, argnum);
6253 mono_mb_emit_ldloc (mb, 1);
6254 mono_mb_emit_byte (mb, CEE_STIND_I);
6256 /* emit valuetype conversion code */
6257 emit_struct_conv (mb, klass, FALSE);
6259 mono_mb_patch_branch (mb, pos2);
6260 } else if (klass == mono_defaults.stringbuilder_class) {
6261 // FIXME: What to do here ?
6263 /* byval [Out] marshalling */
6265 /* FIXME: Handle null */
6268 mono_mb_emit_ldloc (mb, conv_arg);
6269 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6270 mono_mb_emit_stloc (mb, 0);
6273 mono_mb_emit_ldarg (mb, argnum);
6274 mono_mb_emit_stloc (mb, 1);
6276 /* emit valuetype conversion code */
6277 emit_struct_conv (mb, klass, FALSE);
6281 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6282 if (klass->delegate) {
6283 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6284 mono_mb_emit_stloc (mb, 3);
6288 /* The class can not have an automatic layout */
6289 if (mono_class_is_auto_layout (klass)) {
6290 mono_mb_emit_auto_layout_exception (mb, klass);
6294 mono_mb_emit_stloc (mb, 0);
6295 /* Check for null */
6296 mono_mb_emit_ldloc (mb, 0);
6297 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6298 mono_mb_emit_byte (mb, CEE_LDNULL);
6299 mono_mb_emit_stloc (mb, 3);
6300 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6302 mono_mb_patch_branch (mb, pos);
6305 mono_mb_emit_ldloc (mb, 0);
6306 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6307 mono_mb_emit_stloc (mb, 0);
6309 /* Allocate and set dest */
6310 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6311 mono_mb_emit_byte (mb, CEE_CONV_I);
6312 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6313 mono_mb_emit_byte (mb, CEE_DUP);
6314 mono_mb_emit_stloc (mb, 1);
6315 mono_mb_emit_stloc (mb, 3);
6317 emit_struct_conv (mb, klass, FALSE);
6319 mono_mb_patch_branch (mb, pos2);
6323 g_assert_not_reached ();
6334 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6335 MonoMarshalSpec *spec,
6336 int conv_arg, MonoType **conv_arg_type,
6337 MarshalAction action)
6339 MonoMethodBuilder *mb = m->mb;
6340 static MonoMethod *get_object_for_native_variant = NULL;
6341 static MonoMethod *get_native_variant_for_object = NULL;
6343 if (!get_object_for_native_variant)
6344 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6345 g_assert (get_object_for_native_variant);
6347 if (!get_native_variant_for_object)
6348 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6349 g_assert (get_native_variant_for_object);
6352 case MARSHAL_ACTION_CONV_IN: {
6353 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6356 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6358 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6360 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6363 mono_mb_emit_ldarg (mb, argnum);
6365 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6366 mono_mb_emit_ldloc_addr (mb, conv_arg);
6367 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6371 case MARSHAL_ACTION_CONV_OUT: {
6372 static MonoMethod *variant_clear = NULL;
6375 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6376 g_assert (variant_clear);
6379 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6380 mono_mb_emit_ldarg (mb, argnum);
6381 mono_mb_emit_ldloc_addr (mb, conv_arg);
6382 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6383 mono_mb_emit_byte (mb, CEE_STIND_REF);
6386 mono_mb_emit_ldloc_addr (mb, conv_arg);
6387 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6391 case MARSHAL_ACTION_PUSH:
6393 mono_mb_emit_ldloc_addr (mb, conv_arg);
6395 mono_mb_emit_ldloc (mb, conv_arg);
6398 case MARSHAL_ACTION_CONV_RESULT: {
6399 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6400 mono_mb_emit_exception_marshal_directive (mb, msg);
6404 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6405 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6408 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6410 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6412 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6416 mono_mb_emit_ldarg (mb, argnum);
6418 mono_mb_emit_ldarg_addr (mb, argnum);
6419 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6420 mono_mb_emit_stloc (mb, conv_arg);
6424 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6425 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6426 mono_mb_emit_ldloc (mb, conv_arg);
6427 mono_mb_emit_ldarg (mb, argnum);
6428 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6433 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6434 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6435 mono_mb_emit_exception_marshal_directive (mb, msg);
6440 g_assert_not_reached ();
6446 #endif /* DISABLE_COM */
6447 #endif /* DISABLE_JIT */
6450 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6452 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6453 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6455 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6457 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6469 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6470 MonoMarshalSpec *spec,
6471 int conv_arg, MonoType **conv_arg_type,
6472 MarshalAction action)
6476 case MARSHAL_ACTION_CONV_IN:
6477 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6479 case MARSHAL_ACTION_MANAGED_CONV_IN:
6480 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6484 MonoMethodBuilder *mb = m->mb;
6485 MonoClass *klass = mono_class_from_mono_type (t);
6486 gboolean need_convert, need_free;
6487 MonoMarshalNative encoding;
6489 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6492 case MARSHAL_ACTION_CONV_IN:
6493 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6494 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6496 if (klass->element_class->blittable) {
6497 mono_mb_emit_ldarg (mb, argnum);
6499 mono_mb_emit_byte (mb, CEE_LDIND_I);
6500 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6501 mono_mb_emit_stloc (mb, conv_arg);
6504 guint32 label1, label2, label3;
6505 int index_var, src_var, dest_ptr, esize;
6506 MonoMarshalConv conv;
6507 gboolean is_string = FALSE;
6509 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6511 eklass = klass->element_class;
6513 if (eklass == mono_defaults.string_class) {
6515 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6517 else if (eklass == mono_defaults.stringbuilder_class) {
6519 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6522 conv = MONO_MARSHAL_CONV_INVALID;
6524 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6525 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6526 mono_mb_emit_exception_marshal_directive (mb, msg);
6530 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6531 mono_mb_emit_ldarg (mb, argnum);
6533 mono_mb_emit_byte (mb, CEE_LDIND_I);
6534 mono_mb_emit_stloc (mb, src_var);
6537 mono_mb_emit_ldloc (mb, src_var);
6538 mono_mb_emit_stloc (mb, conv_arg);
6539 mono_mb_emit_ldloc (mb, src_var);
6540 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6543 esize = sizeof (gpointer);
6544 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6545 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6547 esize = mono_class_native_size (eklass, NULL);
6549 /* allocate space for the native struct and store the address */
6550 mono_mb_emit_icon (mb, esize);
6551 mono_mb_emit_ldloc (mb, src_var);
6552 mono_mb_emit_byte (mb, CEE_LDLEN);
6554 if (eklass == mono_defaults.string_class) {
6555 /* Make the array bigger for the terminating null */
6556 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6557 mono_mb_emit_byte (mb, CEE_ADD);
6559 mono_mb_emit_byte (mb, CEE_MUL);
6560 mono_mb_emit_byte (mb, CEE_PREFIX1);
6561 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6562 mono_mb_emit_stloc (mb, conv_arg);
6564 mono_mb_emit_ldloc (mb, conv_arg);
6565 mono_mb_emit_stloc (mb, dest_ptr);
6567 /* Emit marshalling loop */
6568 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6569 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6570 mono_mb_emit_stloc (mb, index_var);
6571 label2 = mono_mb_get_label (mb);
6572 mono_mb_emit_ldloc (mb, index_var);
6573 mono_mb_emit_ldloc (mb, src_var);
6574 mono_mb_emit_byte (mb, CEE_LDLEN);
6575 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6577 /* Emit marshalling code */
6581 mono_mb_emit_ldloc (mb, dest_ptr);
6582 mono_mb_emit_ldloc (mb, src_var);
6583 mono_mb_emit_ldloc (mb, index_var);
6584 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6585 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6586 mono_mb_emit_byte (mb, stind_op);
6588 /* set the src_ptr */
6589 mono_mb_emit_ldloc (mb, src_var);
6590 mono_mb_emit_ldloc (mb, index_var);
6591 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6592 mono_mb_emit_stloc (mb, 0);
6595 mono_mb_emit_ldloc (mb, dest_ptr);
6596 mono_mb_emit_stloc (mb, 1);
6598 /* emit valuetype conversion code */
6599 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6602 mono_mb_emit_add_to_local (mb, index_var, 1);
6603 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6605 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6607 mono_mb_patch_branch (mb, label3);
6609 if (eklass == mono_defaults.string_class) {
6610 /* Null terminate */
6611 mono_mb_emit_ldloc (mb, dest_ptr);
6612 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6613 mono_mb_emit_byte (mb, CEE_STIND_REF);
6616 mono_mb_patch_branch (mb, label1);
6621 case MARSHAL_ACTION_CONV_OUT:
6622 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6623 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);
6624 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6627 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6628 int param_num = spec->data.array_data.param_num;
6629 MonoType *param_type;
6631 param_type = m->sig->params [param_num];
6633 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6634 char *msg = g_strdup ("Not implemented.");
6635 mono_mb_emit_exception_marshal_directive (mb, msg);
6640 mono_mb_emit_ldarg (mb, argnum);
6642 /* Create the managed array */
6643 mono_mb_emit_ldarg (mb, param_num);
6644 if (m->sig->params [param_num]->byref)
6645 // FIXME: Support other types
6646 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6647 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6648 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6649 /* Store into argument */
6650 mono_mb_emit_byte (mb, CEE_STIND_REF);
6654 if (need_convert || need_free) {
6655 /* FIXME: Optimize blittable case */
6657 guint32 label1, label2, label3;
6658 int index_var, src_ptr, loc, esize;
6660 eklass = klass->element_class;
6661 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6662 esize = sizeof (gpointer);
6663 else if (eklass == mono_defaults.char_class)
6664 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6666 esize = mono_class_native_size (eklass, NULL);
6667 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6668 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6671 mono_mb_emit_ldarg (mb, argnum);
6673 mono_mb_emit_byte (mb, CEE_LDIND_I);
6674 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6676 mono_mb_emit_ldloc (mb, conv_arg);
6677 mono_mb_emit_stloc (mb, src_ptr);
6679 /* Emit marshalling loop */
6680 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6681 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6682 mono_mb_emit_stloc (mb, index_var);
6683 label2 = mono_mb_get_label (mb);
6684 mono_mb_emit_ldloc (mb, index_var);
6685 mono_mb_emit_ldarg (mb, argnum);
6687 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6688 mono_mb_emit_byte (mb, CEE_LDLEN);
6689 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6691 /* Emit marshalling code */
6693 if (eklass == mono_defaults.stringbuilder_class) {
6694 gboolean need_free2;
6695 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6697 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6700 mono_mb_emit_ldarg (mb, argnum);
6702 mono_mb_emit_byte (mb, CEE_LDIND_I);
6703 mono_mb_emit_ldloc (mb, index_var);
6704 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6707 mono_mb_emit_ldloc (mb, src_ptr);
6708 mono_mb_emit_byte (mb, CEE_LDIND_I);
6710 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6714 mono_mb_emit_ldloc (mb, src_ptr);
6715 mono_mb_emit_byte (mb, CEE_LDIND_I);
6717 mono_mb_emit_icall (mb, mono_marshal_free);
6720 else if (eklass == mono_defaults.string_class) {
6723 mono_mb_emit_ldloc (mb, src_ptr);
6724 mono_mb_emit_byte (mb, CEE_LDIND_I);
6726 mono_mb_emit_icall (mb, mono_marshal_free);
6731 /* set the src_ptr */
6732 mono_mb_emit_ldloc (mb, src_ptr);
6733 mono_mb_emit_stloc (mb, 0);
6736 mono_mb_emit_ldarg (mb, argnum);
6738 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6739 mono_mb_emit_ldloc (mb, index_var);
6740 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6741 mono_mb_emit_stloc (mb, 1);
6743 /* emit valuetype conversion code */
6744 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6748 mono_mb_emit_ldloc (mb, src_ptr);
6749 mono_mb_emit_stloc (mb, loc);
6750 mono_mb_emit_ldloc (mb, loc);
6752 emit_struct_free (mb, eklass, loc);
6756 mono_mb_emit_add_to_local (mb, index_var, 1);
6757 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6759 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6761 mono_mb_patch_branch (mb, label1);
6762 mono_mb_patch_branch (mb, label3);
6765 if (klass->element_class->blittable) {
6766 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6768 mono_mb_emit_ldarg (mb, argnum);
6770 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6771 mono_mb_emit_ldloc (mb, conv_arg);
6772 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6777 case MARSHAL_ACTION_PUSH:
6779 mono_mb_emit_ldloc_addr (mb, conv_arg);
6781 mono_mb_emit_ldloc (mb, conv_arg);
6784 case MARSHAL_ACTION_CONV_RESULT:
6785 /* fixme: we need conversions here */
6786 mono_mb_emit_stloc (mb, 3);
6789 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6791 guint32 label1, label2, label3;
6792 int index_var, src_ptr, esize, param_num, num_elem;
6793 MonoMarshalConv conv;
6794 gboolean is_string = FALSE;
6796 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6797 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6800 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6801 mono_mb_emit_exception_marshal_directive (mb, msg);
6805 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6806 mono_mb_emit_exception_marshal_directive (mb, msg);
6809 if (spec->native != MONO_NATIVE_LPARRAY) {
6810 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6811 mono_mb_emit_exception_marshal_directive (mb, msg);
6815 /* FIXME: t is from the method which is wrapped, not the delegate type */
6816 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6818 param_num = spec->data.array_data.param_num;
6819 num_elem = spec->data.array_data.num_elem;
6820 if (spec->data.array_data.elem_mult == 0)
6821 /* param_num is not specified */
6824 if (param_num == -1) {
6825 if (num_elem <= 0) {
6826 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6827 mono_mb_emit_exception_marshal_directive (mb, msg);
6832 /* FIXME: Optimize blittable case */
6834 eklass = klass->element_class;
6835 if (eklass == mono_defaults.string_class) {
6837 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6839 else if (eklass == mono_defaults.stringbuilder_class) {
6841 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6844 conv = MONO_MARSHAL_CONV_INVALID;
6846 mono_marshal_load_type_info (eklass);
6849 esize = sizeof (gpointer);
6851 esize = mono_class_native_size (eklass, NULL);
6852 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6854 mono_mb_emit_byte (mb, CEE_LDNULL);
6855 mono_mb_emit_stloc (mb, conv_arg);
6857 /* Check param index */
6858 if (param_num != -1) {
6859 if (param_num >= m->sig->param_count) {
6860 char *msg = g_strdup ("Array size control parameter index is out of range.");
6861 mono_mb_emit_exception_marshal_directive (mb, msg);
6864 switch (m->sig->params [param_num]->type) {
6877 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6878 mono_mb_emit_exception_marshal_directive (mb, msg);
6885 mono_mb_emit_ldarg (mb, argnum);
6886 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6888 mono_mb_emit_ldarg (mb, argnum);
6889 mono_mb_emit_stloc (mb, src_ptr);
6891 /* Create managed array */
6893 * The LPArray marshalling spec says that sometimes param_num starts
6894 * from 1, sometimes it starts from 0. But MS seems to allways start
6898 if (param_num == -1) {
6899 mono_mb_emit_icon (mb, num_elem);
6901 mono_mb_emit_ldarg (mb, param_num);
6903 mono_mb_emit_icon (mb, num_elem);
6904 mono_mb_emit_byte (mb, CEE_ADD);
6906 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6909 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6910 mono_mb_emit_stloc (mb, conv_arg);
6912 if (eklass->blittable) {
6913 mono_mb_emit_ldloc (mb, conv_arg);
6914 mono_mb_emit_byte (mb, CEE_CONV_I);
6915 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6916 mono_mb_emit_byte (mb, CEE_ADD);
6917 mono_mb_emit_ldarg (mb, argnum);
6918 mono_mb_emit_ldloc (mb, conv_arg);
6919 mono_mb_emit_byte (mb, CEE_LDLEN);
6920 mono_mb_emit_icon (mb, esize);
6921 mono_mb_emit_byte (mb, CEE_MUL);
6922 mono_mb_emit_byte (mb, CEE_PREFIX1);
6923 mono_mb_emit_byte (mb, CEE_CPBLK);
6924 mono_mb_patch_branch (mb, label1);
6928 /* Emit marshalling loop */
6929 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6930 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6931 mono_mb_emit_stloc (mb, index_var);
6932 label2 = mono_mb_get_label (mb);
6933 mono_mb_emit_ldloc (mb, index_var);
6934 mono_mb_emit_ldloc (mb, conv_arg);
6935 mono_mb_emit_byte (mb, CEE_LDLEN);
6936 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6938 /* Emit marshalling code */
6940 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6942 mono_mb_emit_ldloc (mb, conv_arg);
6943 mono_mb_emit_ldloc (mb, index_var);
6945 mono_mb_emit_ldloc (mb, src_ptr);
6946 mono_mb_emit_byte (mb, CEE_LDIND_I);
6948 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6949 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6952 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6953 mono_mb_emit_exception_marshal_directive (mb, msg);
6957 mono_mb_emit_add_to_local (mb, index_var, 1);
6958 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6960 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6962 mono_mb_patch_branch (mb, label1);
6963 mono_mb_patch_branch (mb, label3);
6967 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6969 guint32 label1, label2, label3;
6970 int index_var, dest_ptr, esize, param_num, num_elem;
6971 MonoMarshalConv conv;
6972 gboolean is_string = FALSE;
6975 /* Already handled in CONV_IN */
6978 /* These are already checked in CONV_IN */
6979 g_assert (!t->byref);
6980 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6981 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6983 param_num = spec->data.array_data.param_num;
6984 num_elem = spec->data.array_data.num_elem;
6986 if (spec->data.array_data.elem_mult == 0)
6987 /* param_num is not specified */
6990 if (param_num == -1) {
6991 if (num_elem <= 0) {
6992 g_assert_not_reached ();
6996 /* FIXME: Optimize blittable case */
6998 eklass = klass->element_class;
6999 if (eklass == mono_defaults.string_class) {
7001 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7003 else if (eklass == mono_defaults.stringbuilder_class) {
7005 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7008 conv = MONO_MARSHAL_CONV_INVALID;
7010 mono_marshal_load_type_info (eklass);
7013 esize = sizeof (gpointer);
7015 esize = mono_class_native_size (eklass, NULL);
7017 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7020 mono_mb_emit_ldloc (mb, conv_arg);
7021 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7023 mono_mb_emit_ldarg (mb, argnum);
7024 mono_mb_emit_stloc (mb, dest_ptr);
7026 if (eklass->blittable) {
7028 mono_mb_emit_ldarg (mb, argnum);
7030 mono_mb_emit_ldloc (mb, conv_arg);
7031 mono_mb_emit_byte (mb, CEE_CONV_I);
7032 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
7033 mono_mb_emit_byte (mb, CEE_ADD);
7035 mono_mb_emit_ldloc (mb, conv_arg);
7036 mono_mb_emit_byte (mb, CEE_LDLEN);
7037 mono_mb_emit_icon (mb, esize);
7038 mono_mb_emit_byte (mb, CEE_MUL);
7039 mono_mb_emit_byte (mb, CEE_PREFIX1);
7040 mono_mb_emit_byte (mb, CEE_CPBLK);
7044 /* Emit marshalling loop */
7045 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7046 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7047 mono_mb_emit_stloc (mb, index_var);
7048 label2 = mono_mb_get_label (mb);
7049 mono_mb_emit_ldloc (mb, index_var);
7050 mono_mb_emit_ldloc (mb, conv_arg);
7051 mono_mb_emit_byte (mb, CEE_LDLEN);
7052 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7054 /* Emit marshalling code */
7057 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7060 mono_mb_emit_ldloc (mb, dest_ptr);
7063 mono_mb_emit_ldloc (mb, conv_arg);
7064 mono_mb_emit_ldloc (mb, index_var);
7066 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7068 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7069 mono_mb_emit_byte (mb, stind_op);
7072 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7073 mono_mb_emit_exception_marshal_directive (mb, msg);
7077 mono_mb_emit_add_to_local (mb, index_var, 1);
7078 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7080 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7082 mono_mb_patch_branch (mb, label1);
7083 mono_mb_patch_branch (mb, label3);
7087 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7089 guint32 label1, label2, label3;
7090 int index_var, src, dest, esize;
7091 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
7092 gboolean is_string = FALSE;
7094 g_assert (!t->byref);
7096 eklass = klass->element_class;
7098 mono_marshal_load_type_info (eklass);
7100 if (eklass == mono_defaults.string_class) {
7102 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7105 g_assert_not_reached ();
7109 esize = sizeof (gpointer);
7110 else if (eklass == mono_defaults.char_class)
7111 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7113 esize = mono_class_native_size (eklass, NULL);
7115 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7116 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7118 mono_mb_emit_stloc (mb, src);
7119 mono_mb_emit_ldloc (mb, src);
7120 mono_mb_emit_stloc (mb, 3);
7122 /* Check for null */
7123 mono_mb_emit_ldloc (mb, src);
7124 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7126 /* Allocate native array */
7127 mono_mb_emit_icon (mb, esize);
7128 mono_mb_emit_ldloc (mb, src);
7129 mono_mb_emit_byte (mb, CEE_LDLEN);
7131 if (eklass == mono_defaults.string_class) {
7132 /* Make the array bigger for the terminating null */
7133 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7134 mono_mb_emit_byte (mb, CEE_ADD);
7136 mono_mb_emit_byte (mb, CEE_MUL);
7137 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
7138 mono_mb_emit_stloc (mb, dest);
7139 mono_mb_emit_ldloc (mb, dest);
7140 mono_mb_emit_stloc (mb, 3);
7142 /* Emit marshalling loop */
7143 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7144 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7145 mono_mb_emit_stloc (mb, index_var);
7146 label2 = mono_mb_get_label (mb);
7147 mono_mb_emit_ldloc (mb, index_var);
7148 mono_mb_emit_ldloc (mb, src);
7149 mono_mb_emit_byte (mb, CEE_LDLEN);
7150 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7152 /* Emit marshalling code */
7155 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7158 mono_mb_emit_ldloc (mb, dest);
7161 mono_mb_emit_ldloc (mb, src);
7162 mono_mb_emit_ldloc (mb, index_var);
7164 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7166 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7167 mono_mb_emit_byte (mb, stind_op);
7170 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7171 mono_mb_emit_exception_marshal_directive (mb, msg);
7175 mono_mb_emit_add_to_local (mb, index_var, 1);
7176 mono_mb_emit_add_to_local (mb, dest, esize);
7178 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7180 mono_mb_patch_branch (mb, label3);
7181 mono_mb_patch_branch (mb, label1);
7185 g_assert_not_reached ();
7192 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
7195 return &mono_defaults.int32_class->byval_arg;
7197 switch (spec->native) {
7198 case MONO_NATIVE_I1:
7199 case MONO_NATIVE_U1:
7200 return &mono_defaults.byte_class->byval_arg;
7201 case MONO_NATIVE_VARIANTBOOL:
7202 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
7203 return &mono_defaults.int16_class->byval_arg;
7204 case MONO_NATIVE_BOOLEAN:
7205 return &mono_defaults.int32_class->byval_arg;
7207 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7208 return &mono_defaults.int32_class->byval_arg;
7214 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
7216 MonoClass* conv_arg_class = mono_defaults.int32_class;
7218 switch (spec->native) {
7219 case MONO_NATIVE_I1:
7220 case MONO_NATIVE_U1:
7221 conv_arg_class = mono_defaults.byte_class;
7222 if (ldop) *ldop = CEE_LDIND_I1;
7224 case MONO_NATIVE_VARIANTBOOL:
7225 conv_arg_class = mono_defaults.int16_class;
7226 if (ldop) *ldop = CEE_LDIND_I2;
7228 case MONO_NATIVE_BOOLEAN:
7231 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7234 return conv_arg_class;
7238 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7239 MonoMarshalSpec *spec,
7240 int conv_arg, MonoType **conv_arg_type,
7241 MarshalAction action)
7245 case MARSHAL_ACTION_CONV_IN:
7247 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7249 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7252 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7253 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7255 *conv_arg_type = &conv_arg_class->this_arg;
7257 *conv_arg_type = &conv_arg_class->byval_arg;
7263 MonoMethodBuilder *mb = m->mb;
7266 case MARSHAL_ACTION_CONV_IN: {
7267 MonoType *local_type;
7269 guint8 ldc_op = CEE_LDC_I4_1;
7271 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7273 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7275 *conv_arg_type = local_type;
7276 conv_arg = mono_mb_add_local (mb, local_type);
7278 mono_mb_emit_ldarg (mb, argnum);
7280 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7281 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7282 mono_mb_emit_byte (mb, ldc_op);
7283 mono_mb_emit_stloc (mb, conv_arg);
7284 mono_mb_patch_branch (mb, label_false);
7289 case MARSHAL_ACTION_CONV_OUT:
7291 int label_false, label_end;
7295 mono_mb_emit_ldarg (mb, argnum);
7296 mono_mb_emit_ldloc (mb, conv_arg);
7298 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7299 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7301 label_end = mono_mb_emit_branch (mb, CEE_BR);
7302 mono_mb_patch_branch (mb, label_false);
7303 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7304 mono_mb_patch_branch (mb, label_end);
7306 mono_mb_emit_byte (mb, CEE_STIND_I1);
7310 case MARSHAL_ACTION_PUSH:
7312 mono_mb_emit_ldloc_addr (mb, conv_arg);
7314 mono_mb_emit_ldloc (mb, conv_arg);
7316 mono_mb_emit_ldarg (mb, argnum);
7319 case MARSHAL_ACTION_CONV_RESULT:
7320 /* maybe we need to make sure that it fits within 8 bits */
7321 mono_mb_emit_stloc (mb, 3);
7324 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7325 MonoClass* conv_arg_class = mono_defaults.int32_class;
7326 guint8 ldop = CEE_LDIND_I4;
7327 int label_null, label_false;
7329 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7330 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7333 *conv_arg_type = &conv_arg_class->this_arg;
7335 *conv_arg_type = &conv_arg_class->byval_arg;
7338 mono_mb_emit_ldarg (mb, argnum);
7342 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7343 mono_mb_emit_ldarg (mb, argnum);
7344 mono_mb_emit_byte (mb, ldop);
7348 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7349 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7350 mono_mb_emit_stloc (mb, conv_arg);
7351 mono_mb_patch_branch (mb, label_false);
7354 mono_mb_patch_branch (mb, label_null);
7358 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7359 guint8 stop = CEE_STIND_I4;
7360 guint8 ldc_op = CEE_LDC_I4_1;
7361 int label_null,label_false, label_end;;
7366 switch (spec->native) {
7367 case MONO_NATIVE_I1:
7368 case MONO_NATIVE_U1:
7369 stop = CEE_STIND_I1;
7371 case MONO_NATIVE_VARIANTBOOL:
7372 stop = CEE_STIND_I2;
7373 ldc_op = CEE_LDC_I4_M1;
7381 mono_mb_emit_ldarg (mb, argnum);
7382 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7384 mono_mb_emit_ldarg (mb, argnum);
7385 mono_mb_emit_ldloc (mb, conv_arg);
7387 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7388 mono_mb_emit_byte (mb, ldc_op);
7389 label_end = mono_mb_emit_branch (mb, CEE_BR);
7391 mono_mb_patch_branch (mb, label_false);
7392 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7393 mono_mb_patch_branch (mb, label_end);
7395 mono_mb_emit_byte (mb, stop);
7396 mono_mb_patch_branch (mb, label_null);
7401 g_assert_not_reached ();
7408 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7409 MonoMarshalSpec *spec, int conv_arg,
7410 MonoType **conv_arg_type, MarshalAction action)
7413 MonoMethodBuilder *mb = m->mb;
7416 case MARSHAL_ACTION_CONV_IN:
7417 /* MS seems to allow this in some cases, ie. bxc #158 */
7419 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7420 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7421 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7426 case MARSHAL_ACTION_PUSH:
7427 mono_mb_emit_ldarg (mb, argnum);
7430 case MARSHAL_ACTION_CONV_RESULT:
7431 /* no conversions necessary */
7432 mono_mb_emit_stloc (mb, 3);
7443 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7444 MonoMarshalSpec *spec, int conv_arg,
7445 MonoType **conv_arg_type, MarshalAction action)
7448 MonoMethodBuilder *mb = m->mb;
7451 case MARSHAL_ACTION_PUSH:
7452 /* fixme: dont know how to marshal that. We cant simply
7453 * convert it to a one byte UTF8 character, because an
7454 * unicode character may need more that one byte in UTF8 */
7455 mono_mb_emit_ldarg (mb, argnum);
7458 case MARSHAL_ACTION_CONV_RESULT:
7459 /* fixme: we need conversions here */
7460 mono_mb_emit_stloc (mb, 3);
7471 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7472 MonoMarshalSpec *spec, int conv_arg,
7473 MonoType **conv_arg_type, MarshalAction action)
7476 MonoMethodBuilder *mb = m->mb;
7479 case MARSHAL_ACTION_PUSH:
7480 mono_mb_emit_ldarg (mb, argnum);
7483 case MARSHAL_ACTION_CONV_RESULT:
7484 /* no conversions necessary */
7485 mono_mb_emit_stloc (mb, 3);
7496 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7497 MonoMarshalSpec *spec, int conv_arg,
7498 MonoType **conv_arg_type, MarshalAction action)
7500 /* Ensure that we have marshalling info for this param */
7501 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7503 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7504 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7506 if (spec && spec->native == MONO_NATIVE_ASANY)
7507 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7510 case MONO_TYPE_VALUETYPE:
7511 if (t->data.klass == mono_defaults.handleref_class)
7512 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7514 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7515 case MONO_TYPE_STRING:
7516 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7517 case MONO_TYPE_CLASS:
7518 case MONO_TYPE_OBJECT:
7519 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7520 if (spec && spec->native == MONO_NATIVE_STRUCT)
7521 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7524 #if !defined(DISABLE_COM)
7525 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7526 spec->native == MONO_NATIVE_IDISPATCH ||
7527 spec->native == MONO_NATIVE_INTERFACE))
7528 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7529 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7530 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7531 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7532 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7535 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7536 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7537 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7539 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7540 case MONO_TYPE_ARRAY:
7541 case MONO_TYPE_SZARRAY:
7542 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7543 case MONO_TYPE_BOOLEAN:
7544 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7546 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7547 case MONO_TYPE_CHAR:
7548 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7561 case MONO_TYPE_FNPTR:
7562 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7563 case MONO_TYPE_GENERICINST:
7564 if (mono_type_generic_inst_is_valuetype (t))
7565 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7567 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7573 /* How the arguments of an icall should be wrapped */
7575 /* Don't wrap at all, pass the argument as is */
7576 ICALL_HANDLES_WRAP_NONE,
7577 /* Wrap the argument in an object handle, pass the handle to the icall */
7578 ICALL_HANDLES_WRAP_OBJ,
7579 /* Wrap the argument in an object handle, pass the handle to the icall,
7580 write the value out from the handle when the icall returns */
7581 ICALL_HANDLES_WRAP_OBJ_INOUT,
7582 /* Wrap the argument (a valuetype reference) in a handle to pin its enclosing object,
7583 but pass the raw reference to the icall */
7584 ICALL_HANDLES_WRAP_VALUETYPE_REF,
7588 IcallHandlesWrap wrap;
7589 /* if wrap is NONE or OBJ or VALUETYPE_REF, this is not meaningful.
7590 if wrap is OBJ_INOUT it's the local var that holds the MonoObjectHandle.
7593 } IcallHandlesLocal;
7596 * Describes how to wrap the given parameter.
7599 static IcallHandlesWrap
7600 signature_param_uses_handles (MonoMethodSignature *sig, int param)
7602 if (MONO_TYPE_IS_REFERENCE (sig->params [param])) {
7603 return mono_signature_param_is_out (sig, param) ? ICALL_HANDLES_WRAP_OBJ_INOUT : ICALL_HANDLES_WRAP_OBJ;
7604 } else if (mono_type_is_byref (sig->params [param]))
7605 return ICALL_HANDLES_WRAP_VALUETYPE_REF;
7607 return ICALL_HANDLES_WRAP_NONE;
7613 * mono_marshal_emit_native_wrapper:
7614 * \param image the image to use for looking up custom marshallers
7615 * \param sig The signature of the native function
7616 * \param piinfo Marshalling information
7617 * \param mspecs Marshalling information
7618 * \param aot whenever the created method will be compiled by the AOT compiler
7619 * \param method if non-NULL, the pinvoke method to call
7620 * \param check_exceptions Whenever to check for pending exceptions after the native call
7621 * \param func_param the function to call is passed as a boxed IntPtr as the first parameter
7623 * generates IL code for the pinvoke wrapper, the generated code calls \p func .
7626 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)
7628 EmitMarshalContext m;
7629 MonoMethodSignature *csig;
7631 int i, argnum, *tmp_locals;
7632 int type, param_shift = 0;
7633 int coop_gc_stack_dummy, coop_gc_var;
7635 memset (&m, 0, sizeof (m));
7640 /* we copy the signature, so that we can set pinvoke to 0 */
7642 /* The function address is passed as the first argument */
7643 g_assert (!sig->hasthis);
7646 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7654 /* we allocate local for use with emit_struct_conv() */
7655 /* allocate local 0 (pointer) src_ptr */
7656 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7657 /* allocate local 1 (pointer) dst_ptr */
7658 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7659 /* allocate local 2 (boolean) delete_old */
7660 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7662 /* delete_old = FALSE */
7663 mono_mb_emit_icon (mb, 0);
7664 mono_mb_emit_stloc (mb, 2);
7666 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7667 /* allocate local 3 to store the return value */
7668 mono_mb_add_local (mb, sig->ret);
7671 if (mono_threads_is_coop_enabled ()) {
7672 /* local 4, dummy local used to get a stack address for suspend funcs */
7673 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7674 /* local 5, the local to be used when calling the suspend funcs */
7675 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7679 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7681 * ret = method (...);
7683 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7690 if (MONO_TYPE_ISSTRUCT (sig->ret))
7691 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7693 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7694 /* Return type custom marshaling */
7696 * Since we can't determine the return type of the unmanaged function,
7697 * we assume it returns a pointer, and pass that pointer to
7698 * MarshalNativeToManaged.
7700 csig->ret = &mono_defaults.int_class->byval_arg;
7703 /* we first do all conversions */
7704 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7705 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7707 for (i = 0; i < sig->param_count; i ++) {
7708 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7711 // In coop mode need to register blocking state during native call
7712 if (mono_threads_is_coop_enabled ()) {
7713 // Perform an extra, early lookup of the function address, so any exceptions
7714 // potentially resulting from the lookup occur before entering blocking mode.
7715 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7716 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7717 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7718 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7721 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7722 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7723 mono_mb_emit_stloc (mb, coop_gc_var);
7726 /* push all arguments */
7729 mono_mb_emit_byte (mb, CEE_LDARG_0);
7731 for (i = 0; i < sig->param_count; i++) {
7732 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7735 /* call the native method */
7737 mono_mb_emit_byte (mb, CEE_LDARG_0);
7738 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7739 mono_mb_emit_byte (mb, CEE_LDIND_I);
7740 mono_mb_emit_calli (mb, csig);
7741 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7743 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7745 g_assert_not_reached ();
7749 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7750 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7751 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7752 mono_mb_emit_calli (mb, csig);
7754 mono_mb_emit_native_call (mb, csig, func);
7758 /* Set LastError if needed */
7759 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7762 static MonoMethodSignature *get_last_error_sig = NULL;
7763 if (!get_last_error_sig) {
7764 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7765 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7766 get_last_error_sig->pinvoke = 1;
7770 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7771 * clobber its value.
7773 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7774 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7776 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7777 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7778 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7781 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7785 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7786 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7787 mono_class_init (klass);
7788 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
7789 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7790 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7791 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7792 mono_mb_emit_stloc (mb, m.vtaddr_var);
7796 /* Unblock before converting the result, since that can involve calls into the runtime */
7797 if (mono_threads_is_coop_enabled ()) {
7798 mono_mb_emit_ldloc (mb, coop_gc_var);
7799 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7800 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7803 /* convert the result */
7804 if (!sig->ret->byref) {
7805 MonoMarshalSpec *spec = mspecs [0];
7806 type = sig->ret->type;
7808 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7809 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7813 case MONO_TYPE_VOID:
7815 case MONO_TYPE_VALUETYPE:
7816 klass = sig->ret->data.klass;
7817 if (klass->enumtype) {
7818 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7821 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7835 case MONO_TYPE_FNPTR:
7836 case MONO_TYPE_STRING:
7837 case MONO_TYPE_CLASS:
7838 case MONO_TYPE_OBJECT:
7839 case MONO_TYPE_BOOLEAN:
7840 case MONO_TYPE_ARRAY:
7841 case MONO_TYPE_SZARRAY:
7842 case MONO_TYPE_CHAR:
7844 case MONO_TYPE_GENERICINST:
7845 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7847 case MONO_TYPE_TYPEDBYREF:
7849 g_warning ("return type 0x%02x unknown", sig->ret->type);
7850 g_assert_not_reached ();
7854 mono_mb_emit_stloc (mb, 3);
7858 * Need to call this after converting the result since MONO_VTADDR needs
7859 * to be adjacent to the call instruction.
7861 if (check_exceptions)
7862 emit_thread_interrupt_checkpoint (mb);
7864 /* we need to convert byref arguments back and free string arrays */
7865 for (i = 0; i < sig->param_count; i++) {
7866 MonoType *t = sig->params [i];
7867 MonoMarshalSpec *spec = mspecs [i + 1];
7869 argnum = i + param_shift;
7871 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7872 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7877 case MONO_TYPE_STRING:
7878 case MONO_TYPE_VALUETYPE:
7879 case MONO_TYPE_CLASS:
7880 case MONO_TYPE_OBJECT:
7881 case MONO_TYPE_SZARRAY:
7882 case MONO_TYPE_BOOLEAN:
7883 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7890 if (!MONO_TYPE_IS_VOID(sig->ret))
7891 mono_mb_emit_ldloc (mb, 3);
7893 mono_mb_emit_byte (mb, CEE_RET);
7895 #endif /* DISABLE_JIT */
7898 * mono_marshal_get_native_wrapper:
7899 * \param method The \c MonoMethod to wrap.
7900 * \param check_exceptions Whenever to check for pending exceptions
7902 * Generates IL code for the pinvoke wrapper. The generated method
7903 * calls the unmanaged code in \c piinfo->addr.
7906 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7908 MonoMethodSignature *sig, *csig;
7909 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7910 MonoMethodBuilder *mb;
7911 MonoMarshalSpec **mspecs;
7914 gboolean pinvoke = FALSE;
7917 const char *exc_class = "MissingMethodException";
7918 const char *exc_arg = NULL;
7921 g_assert (method != NULL);
7922 g_assert (mono_method_signature (method)->pinvoke);
7924 GHashTable **cache_ptr;
7927 if (check_exceptions)
7928 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7930 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7932 if (check_exceptions)
7933 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7935 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7938 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7940 if ((res = mono_marshal_find_in_cache (cache, method)))
7943 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7944 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7948 return mono_cominterop_get_native_wrapper (method);
7950 g_assert_not_reached ();
7954 sig = mono_method_signature (method);
7956 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7957 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7960 if (!piinfo->addr) {
7962 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7963 exc_arg = "Method contains unsupported native code";
7965 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7967 piinfo->addr = mono_lookup_internal_call (method);
7971 /* hack - redirect certain string constructors to CreateString */
7972 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7973 g_assert (!pinvoke);
7974 g_assert (method->string_ctor);
7975 g_assert (sig->hasthis);
7977 /* CreateString returns a value */
7978 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7979 csig->ret = &mono_defaults.string_class->byval_arg;
7983 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7984 if (!strcmp ("CreateString", res->name) &&
7985 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7988 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7989 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7991 /* create a wrapper to preserve .ctor in stack trace */
7992 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7995 mono_mb_emit_byte (mb, CEE_LDARG_0);
7996 for (i = 1; i <= csig->param_count; i++)
7997 mono_mb_emit_ldarg (mb, i);
7998 mono_mb_emit_managed_call (mb, res, NULL);
7999 mono_mb_emit_byte (mb, CEE_RET);
8002 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
8003 info->d.string_ctor.method = method;
8005 /* use native_wrapper_cache because internal calls are looked up there */
8006 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
8007 csig->param_count + 1, info, NULL);
8014 /* exception will be thrown */
8015 piinfo->addr = NULL;
8016 g_warning ("cannot find CreateString for .ctor");
8019 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8021 mb->method->save_lmf = 1;
8024 * In AOT mode and embedding scenarios, it is possible that the icall is not
8025 * registered in the runtime doing the AOT compilation.
8027 if (!piinfo->addr && !aot) {
8029 mono_mb_emit_exception (mb, exc_class, exc_arg);
8031 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8032 info->d.managed_to_native.method = method;
8034 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8036 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
8037 csig->param_count + 16, info, NULL);
8043 /* internal calls: we simply push all arguments and call the method (no conversions) */
8044 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8046 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
8048 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8050 //printf ("%s\n", mono_method_full_name (method, 1));
8052 /* hack - string constructors returns a value */
8053 if (method->string_ctor)
8054 csig->ret = &mono_defaults.string_class->byval_arg;
8058 MonoClass *handle_stack_mark_class;
8059 MonoClass *error_class;
8060 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
8061 MonoMethodSignature *call_sig = csig;
8062 gboolean uses_handles = FALSE;
8063 gboolean save_handles_to_locals = FALSE;
8064 IcallHandlesLocal *handles_locals = NULL;
8066 (void) mono_lookup_internal_call_full (method, &uses_handles);
8068 /* If it uses handles and MonoError, it had better check exceptions */
8069 g_assert (!uses_handles || check_exceptions);
8072 MonoMethodSignature *ret;
8074 /* Add a MonoError argument and figure out which args need to be wrapped in handles */
8075 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
8076 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
8078 ret->param_count = csig->param_count + 1;
8079 ret->ret = csig->ret;
8081 handles_locals = g_new0 (IcallHandlesLocal, csig->param_count);
8082 for (int i = 0; i < csig->param_count; ++i) {
8083 IcallHandlesWrap w = signature_param_uses_handles (csig, i);
8084 handles_locals [i].wrap = w;
8086 case ICALL_HANDLES_WRAP_OBJ:
8087 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8088 ret->params [i] = mono_class_get_byref_type (mono_class_from_mono_type(csig->params[i]));
8089 if (w == ICALL_HANDLES_WRAP_OBJ_INOUT)
8090 save_handles_to_locals = TRUE;
8092 case ICALL_HANDLES_WRAP_NONE:
8093 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8094 ret->params [i] = csig->params [i];
8097 g_assert_not_reached ();
8100 /* Add MonoError* param */
8101 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
8102 ret->pinvoke = csig->pinvoke;
8108 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
8109 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
8111 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
8112 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
8113 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
8115 if (save_handles_to_locals) {
8116 /* add a local var to hold the handles for each out arg */
8117 for (int i = 0; i < sig->param_count; ++i) {
8118 int j = i + sig->hasthis;
8119 switch (handles_locals[j].wrap) {
8120 case ICALL_HANDLES_WRAP_NONE:
8121 case ICALL_HANDLES_WRAP_OBJ:
8122 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8123 handles_locals [j].handle = -1;
8125 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8126 handles_locals [j].handle = mono_mb_add_local (mb, sig->params [i]);
8129 g_assert_not_reached ();
8139 * Add a null check since public icalls can be called with 'call' which
8140 * does no such check.
8142 mono_mb_emit_byte (mb, CEE_LDARG_0);
8143 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8144 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8145 mono_mb_patch_branch (mb, pos);
8149 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8150 mono_mb_emit_ldloc_addr (mb, error_var);
8151 mono_mb_emit_icall (mb, mono_icall_start);
8152 mono_mb_emit_stloc (mb, thread_info_var);
8155 mono_mb_emit_byte (mb, CEE_LDARG_0);
8156 /* TODO support adding wrappers to non-static struct methods */
8157 g_assert (!mono_class_is_valuetype(mono_method_get_class (method)));
8158 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8159 mono_mb_emit_icall (mb, mono_icall_handle_new_full);
8161 for (i = 0; i < sig->param_count; i++) {
8162 /* load each argument. references into the managed heap get wrapped in handles */
8163 int j = i + sig->hasthis;
8164 switch (handles_locals[j].wrap) {
8165 case ICALL_HANDLES_WRAP_NONE:
8166 mono_mb_emit_ldarg (mb, j);
8168 case ICALL_HANDLES_WRAP_OBJ:
8169 /* argI = mono_handle_new_full (argI_raw, FALSE) */
8170 mono_mb_emit_ldarg (mb, j);
8171 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8172 mono_mb_emit_icall (mb, mono_icall_handle_new_full);
8174 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8175 /* handleI = argI = mono_handle_new_full (NULL, FALSE) */
8176 mono_mb_emit_byte (mb, CEE_LDNULL);
8177 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8178 mono_mb_emit_icall (mb, mono_icall_handle_new_full);
8180 mono_mb_emit_byte (mb, CEE_DUP);
8182 mono_mb_emit_stloc (mb, handles_locals[j].handle);
8184 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8185 /* (void) mono_handle_new_full (argI, TRUE); argI */
8186 mono_mb_emit_ldarg (mb, j);
8187 mono_mb_emit_byte (mb, CEE_DUP);
8188 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8189 mono_mb_emit_icall (mb, mono_icall_handle_new_full);
8190 mono_mb_emit_byte (mb, CEE_POP);
8192 fprintf (stderr, " Method %s.%s.%s has byref valuetype argument %d\n", method->klass->name_space, method->klass->name, method->name, i);
8196 g_assert_not_reached ();
8199 mono_mb_emit_ldloc_addr (mb, error_var);
8202 mono_mb_emit_byte (mb, CEE_LDARG_0);
8203 for (i = 0; i < sig->param_count; i++)
8204 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8208 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8209 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8210 mono_mb_emit_calli (mb, call_sig);
8212 g_assert (piinfo->addr);
8213 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
8217 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
8218 // if (ret != NULL_HANDLE) {
8219 // ret = MONO_HANDLE_RAW(ret)
8221 mono_mb_emit_byte (mb, CEE_DUP);
8222 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8223 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8224 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8225 mono_mb_patch_branch (mb, pos);
8227 if (save_handles_to_locals) {
8228 for (i = 0; i < sig->param_count; i++) {
8229 int j = i + sig->hasthis;
8230 switch (handles_locals [j].wrap) {
8231 case ICALL_HANDLES_WRAP_NONE:
8232 case ICALL_HANDLES_WRAP_OBJ:
8233 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8235 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8236 /* *argI_raw = MONO_HANDLE_RAW (handleI) */
8239 mono_mb_emit_ldarg (mb, j);
8241 mono_mb_emit_ldloc (mb, handles_locals [j].handle);
8242 /* MONO_HANDLE_RAW(handleI) */
8243 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8244 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8245 /* *argI_raw = MONO_HANDLE_RAW(handleI) */
8246 mono_mb_emit_byte (mb, CEE_STIND_REF);
8249 g_assert_not_reached ();
8253 g_free (handles_locals);
8255 mono_mb_emit_ldloc (mb, thread_info_var);
8256 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8257 mono_mb_emit_ldloc_addr (mb, error_var);
8258 mono_mb_emit_icall (mb, mono_icall_end);
8261 if (check_exceptions)
8262 emit_thread_interrupt_checkpoint (mb);
8263 mono_mb_emit_byte (mb, CEE_RET);
8265 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8266 info->d.managed_to_native.method = method;
8268 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
8270 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8279 g_assert (piinfo->addr);
8282 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8283 mono_method_get_marshal_info (method, mspecs);
8285 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
8287 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
8288 info->d.managed_to_native.method = method;
8290 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8292 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8297 for (i = sig->param_count; i >= 0; i--)
8299 mono_metadata_free_marshal_spec (mspecs [i]);
8303 /* mono_method_print_code (res); */
8309 * mono_marshal_get_native_func_wrapper:
8310 * \param image The image to use for memory allocation and for looking up custom marshallers.
8311 * \param sig The signature of the function
8312 * \param func The native function to wrap
8314 * \returns a wrapper method around native functions, similar to the pinvoke
8318 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8319 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8321 MonoMethodSignature *csig;
8323 SignaturePointerPair key, *new_key;
8324 MonoMethodBuilder *mb;
8333 // Generic types are not safe to place in MonoImage caches.
8334 g_assert (!sig->is_inflated);
8336 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
8337 if ((res = mono_marshal_find_in_cache (cache, &key)))
8340 name = g_strdup_printf ("wrapper_native_%p", func);
8341 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8342 mb->method->save_lmf = 1;
8345 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8348 csig = mono_metadata_signature_dup_full (image, sig);
8351 new_key = g_new (SignaturePointerPair,1);
8352 new_key->sig = csig;
8353 new_key->pointer = func;
8355 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
8361 mono_marshal_set_wrapper_info (res, NULL);
8367 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8371 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8373 MonoMethodSignature *sig, *csig;
8374 MonoMethodBuilder *mb;
8379 MonoMethodPInvoke mpiinfo;
8380 MonoMethodPInvoke *piinfo = &mpiinfo;
8381 MonoMarshalSpec **mspecs;
8382 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8383 MonoImage *image = invoke->klass->image;
8386 // FIXME: include UnmanagedFunctionPointerAttribute info
8389 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8391 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8393 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8396 memset (&mpiinfo, 0, sizeof (mpiinfo));
8397 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8399 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8400 mono_method_get_marshal_info (invoke, mspecs);
8401 /* Freed below so don't alloc from mempool */
8402 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8405 name = g_strdup_printf ("wrapper_aot_native");
8406 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8407 mb->method->save_lmf = 1;
8410 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8413 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8414 info->d.managed_to_native.method = invoke;
8416 g_assert (!sig->hasthis);
8417 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8419 res = mono_mb_create_and_cache_full (cache, invoke,
8420 mb, csig, csig->param_count + 16,
8424 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8426 mono_metadata_free_marshal_spec (mspecs [i]);
8434 * mono_marshal_emit_managed_wrapper:
8436 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8437 * the delegate which wraps the managed method to be called. For closed delegates,
8438 * it could have fewer parameters than the method it wraps.
8439 * THIS_LOC is the memory location where the target of the delegate is stored.
8442 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8445 MonoMethodSignature *sig, *csig;
8451 /* we first do all conversions */
8452 for (i = 0; i < sig->param_count; i ++) {
8453 MonoType *t = sig->params [i];
8456 case MONO_TYPE_OBJECT:
8457 case MONO_TYPE_CLASS:
8458 case MONO_TYPE_VALUETYPE:
8459 case MONO_TYPE_ARRAY:
8460 case MONO_TYPE_SZARRAY:
8461 case MONO_TYPE_STRING:
8462 case MONO_TYPE_BOOLEAN:
8463 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8467 if (!sig->ret->byref) {
8468 switch (sig->ret->type) {
8469 case MONO_TYPE_STRING:
8470 csig->ret = &mono_defaults.int_class->byval_arg;
8477 MonoMethodSignature *sig, *csig;
8478 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8479 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8480 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8481 gboolean closed = FALSE;
8486 /* allocate local 0 (pointer) src_ptr */
8487 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8488 /* allocate local 1 (pointer) dst_ptr */
8489 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8490 /* allocate local 2 (boolean) delete_old */
8491 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8493 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8494 /* Closed delegate */
8495 g_assert (sig->param_count == invoke_sig->param_count + 1);
8497 /* Use a new signature without the first argument */
8498 sig = mono_metadata_signature_dup (sig);
8499 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8500 sig->param_count --;
8503 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8504 /* allocate local 3 to store the return value */
8505 mono_mb_add_local (mb, sig->ret);
8508 if (MONO_TYPE_ISSTRUCT (sig->ret))
8509 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8511 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8512 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8514 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8515 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8520 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8521 * mono_threads_attach_coop ();
8525 * ret = method (...);
8526 * } catch (Exception e) {
8527 * ex = mono_gchandle_new (e, false);
8529 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8530 * mono_threads_detach_coop ();
8533 * mono_marshal_ftnptr_eh_callback (ex);
8539 clauses = g_new0 (MonoExceptionClause, 2);
8541 clause_catch = &clauses [0];
8542 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8543 clause_catch->data.catch_class = mono_defaults.exception_class;
8545 clause_finally = &clauses [1];
8546 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8548 mono_mb_emit_icon (mb, 0);
8549 mono_mb_emit_stloc (mb, 2);
8551 mono_mb_emit_icon (mb, -1);
8552 mono_mb_emit_byte (mb, CEE_CONV_U4);
8553 mono_mb_emit_stloc (mb, ex_local);
8556 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8558 if (!mono_threads_is_coop_enabled ()) {
8559 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8560 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8562 /* mono_threads_attach_coop (); */
8563 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8564 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8565 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8566 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8567 mono_mb_emit_stloc (mb, attach_cookie_local);
8570 /* <interrupt check> */
8571 emit_thread_interrupt_checkpoint (mb);
8573 /* we first do all conversions */
8574 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8575 for (i = 0; i < sig->param_count; i ++) {
8576 MonoType *t = sig->params [i];
8579 case MONO_TYPE_OBJECT:
8580 case MONO_TYPE_CLASS:
8581 case MONO_TYPE_VALUETYPE:
8582 case MONO_TYPE_ARRAY:
8583 case MONO_TYPE_SZARRAY:
8584 case MONO_TYPE_STRING:
8585 case MONO_TYPE_BOOLEAN:
8586 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8596 if (target_handle) {
8597 mono_mb_emit_icon (mb, (gint32)target_handle);
8598 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8601 g_assert_not_reached ();
8603 } else if (closed) {
8604 mono_mb_emit_icon (mb, (gint32)target_handle);
8605 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8608 for (i = 0; i < sig->param_count; i++) {
8609 MonoType *t = sig->params [i];
8611 if (tmp_locals [i]) {
8613 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8615 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8618 mono_mb_emit_ldarg (mb, i);
8621 /* ret = method (...) */
8622 mono_mb_emit_managed_call (mb, method, NULL);
8624 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8625 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8626 mono_class_init (klass);
8627 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
8628 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8629 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8630 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8631 mono_mb_emit_stloc (mb, m->vtaddr_var);
8635 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8636 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8637 } else if (!sig->ret->byref) {
8638 switch (sig->ret->type) {
8639 case MONO_TYPE_VOID:
8641 case MONO_TYPE_BOOLEAN:
8644 case MONO_TYPE_CHAR:
8656 case MONO_TYPE_OBJECT:
8657 mono_mb_emit_stloc (mb, 3);
8659 case MONO_TYPE_STRING:
8660 csig->ret = &mono_defaults.int_class->byval_arg;
8661 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8663 case MONO_TYPE_VALUETYPE:
8664 case MONO_TYPE_CLASS:
8665 case MONO_TYPE_SZARRAY:
8666 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8669 g_warning ("return type 0x%02x unknown", sig->ret->type);
8670 g_assert_not_reached ();
8673 mono_mb_emit_stloc (mb, 3);
8676 /* Convert byref arguments back */
8677 for (i = 0; i < sig->param_count; i ++) {
8678 MonoType *t = sig->params [i];
8679 MonoMarshalSpec *spec = mspecs [i + 1];
8681 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8682 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8684 else if (t->byref) {
8686 case MONO_TYPE_CLASS:
8687 case MONO_TYPE_VALUETYPE:
8688 case MONO_TYPE_OBJECT:
8689 case MONO_TYPE_STRING:
8690 case MONO_TYPE_BOOLEAN:
8691 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8697 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8698 /* The [Out] information is encoded in the delegate signature */
8700 case MONO_TYPE_SZARRAY:
8701 case MONO_TYPE_CLASS:
8702 case MONO_TYPE_VALUETYPE:
8703 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8706 g_assert_not_reached ();
8711 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8715 /* catch (Exception e) { */
8716 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8717 clause_catch->handler_offset = mono_mb_get_label (mb);
8719 mono_mb_emit_stloc (mb, e_local);
8721 /* ex = mono_gchandle_new (e, false); */
8722 mono_mb_emit_ldloc (mb, e_local);
8723 mono_mb_emit_icon (mb, 0);
8724 mono_mb_emit_icall (mb, mono_gchandle_new);
8725 mono_mb_emit_stloc (mb, ex_local);
8727 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8730 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8733 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8734 clause_finally->handler_offset = mono_mb_get_label (mb);
8736 if (!mono_threads_is_coop_enabled ()) {
8737 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8738 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8740 /* mono_threads_detach_coop (); */
8741 mono_mb_emit_ldloc (mb, attach_cookie_local);
8742 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8743 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8747 mono_mb_emit_ldloc (mb, ex_local);
8748 mono_mb_emit_icon (mb, -1);
8749 mono_mb_emit_byte (mb, CEE_CONV_U4);
8750 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8752 /* mono_marshal_ftnptr_eh_callback (ex) */
8753 mono_mb_emit_ldloc (mb, ex_local);
8754 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8757 mono_mb_patch_branch (mb, ex_m1_pos);
8759 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8761 /* } [endfinally] */
8762 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8764 mono_mb_patch_branch (mb, leave_try_pos);
8765 mono_mb_patch_branch (mb, leave_catch_pos);
8768 if (m->retobj_var) {
8769 mono_mb_emit_ldloc (mb, m->retobj_var);
8770 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8771 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8774 if (!MONO_TYPE_IS_VOID(sig->ret))
8775 mono_mb_emit_ldloc (mb, 3);
8776 mono_mb_emit_byte (mb, CEE_RET);
8779 mono_mb_set_clauses (mb, 2, clauses);
8787 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8789 MonoMethodSignature *sig;
8794 * Under windows, delegates passed to native code must use the STDCALL
8795 * calling convention.
8797 csig->call_convention = MONO_CALL_STDCALL;
8800 sig = mono_method_signature (method);
8802 /* Change default calling convention if needed */
8803 /* Why is this a modopt ? */
8804 if (sig->ret && sig->ret->num_mods) {
8805 for (i = 0; i < sig->ret->num_mods; ++i) {
8807 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8808 g_assert (mono_error_ok (&error));
8809 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8810 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8811 csig->call_convention = MONO_CALL_C;
8812 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8813 csig->call_convention = MONO_CALL_STDCALL;
8814 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8815 csig->call_convention = MONO_CALL_FASTCALL;
8816 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8817 csig->call_convention = MONO_CALL_THISCALL;
8824 * mono_marshal_get_managed_wrapper:
8825 * Generates IL code to call managed methods from unmanaged code
8826 * If \p target_handle is \c 0, the wrapper info will be a \c WrapperInfo structure.
8829 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle, MonoError *error)
8831 MonoMethodSignature *sig, *csig, *invoke_sig;
8832 MonoMethodBuilder *mb;
8833 MonoMethod *res, *invoke;
8834 MonoMarshalSpec **mspecs;
8835 MonoMethodPInvoke piinfo;
8838 EmitMarshalContext m;
8840 g_assert (method != NULL);
8843 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
8844 mono_error_set_invalid_program (error, "Failed because method (%s) marked PInvokeCallback (managed method) and extern (unmanaged) simultaneously.", mono_method_full_name (method, TRUE));
8849 * FIXME: Should cache the method+delegate type pair, since the same method
8850 * could be called with different delegates, thus different marshalling
8853 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8855 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8858 invoke = mono_get_delegate_invoke (delegate_klass);
8859 invoke_sig = mono_method_signature (invoke);
8861 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8862 mono_method_get_marshal_info (invoke, mspecs);
8864 sig = mono_method_signature (method);
8866 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8868 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8869 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8871 /* we copy the signature, so that we can modify it */
8873 /* Need to free this later */
8874 csig = mono_metadata_signature_dup (invoke_sig);
8876 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8880 memset (&m, 0, sizeof (m));
8886 m.image = method->klass->image;
8888 mono_marshal_set_callconv_from_modopt (invoke, csig);
8890 /* The attribute is only available in Net 2.0 */
8891 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8892 MonoCustomAttrInfo *cinfo;
8893 MonoCustomAttrEntry *attr;
8896 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8897 * contents of the attribute without constructing it, as that might not be
8898 * possible when running in cross-compiling mode.
8900 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, error);
8901 mono_error_assert_ok (error);
8904 for (i = 0; i < cinfo->num_attrs; ++i) {
8905 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8906 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8907 attr = &cinfo->attrs [i];
8913 MonoArray *typed_args, *named_args;
8914 CattrNamedArg *arginfo;
8918 MonoBoolean set_last_error = 0;
8921 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8922 g_assert (mono_error_ok (&error));
8923 g_assert (mono_array_length (typed_args) == 1);
8926 o = mono_array_get (typed_args, MonoObject*, 0);
8927 call_conv = *(gint32*)mono_object_unbox (o);
8930 for (i = 0; i < mono_array_length (named_args); ++i) {
8931 CattrNamedArg *narg = &arginfo [i];
8933 o = mono_array_get (named_args, MonoObject*, i);
8935 g_assert (narg->field);
8936 if (!strcmp (narg->field->name, "CharSet")) {
8937 charset = *(gint32*)mono_object_unbox (o);
8938 } else if (!strcmp (narg->field->name, "SetLastError")) {
8939 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8940 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8941 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8942 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8943 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8945 g_assert_not_reached ();
8951 memset (&piinfo, 0, sizeof (piinfo));
8953 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8955 csig->call_convention = call_conv - 1;
8958 if (cinfo && !cinfo->cached)
8959 mono_custom_attrs_free (cinfo);
8962 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8964 if (!target_handle) {
8967 // FIXME: Associate it with the method+delegate_klass pair
8968 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8969 info->d.native_to_managed.method = method;
8970 info->d.native_to_managed.klass = delegate_klass;
8972 res = mono_mb_create_and_cache_full (cache, method,
8973 mb, csig, sig->param_count + 16,
8979 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8983 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8985 mono_metadata_free_marshal_spec (mspecs [i]);
8988 /* mono_method_print_code (res); */
8994 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8998 MonoMethodSignature *sig;
8999 MonoMethodBuilder *mb;
9004 method = mono_get_method_checked (image, token, NULL, NULL, &error);
9006 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
9009 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
9010 MonoMethodSignature *csig;
9011 MonoMarshalSpec **mspecs;
9012 EmitMarshalContext m;
9014 sig = mono_method_signature (method);
9015 g_assert (!sig->hasthis);
9017 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
9018 mono_method_get_marshal_info (method, mspecs);
9020 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
9021 csig = mono_metadata_signature_dup_full (image, sig);
9025 memset (&m, 0, sizeof (m));
9033 mono_marshal_set_callconv_from_modopt (method, csig);
9035 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
9037 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
9042 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
9045 for (i = sig->param_count; i >= 0; i--)
9047 mono_metadata_free_marshal_spec (mspecs [i]);
9050 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
9051 mono_error_assert_ok (&error);
9052 return compiled_ptr;
9055 sig = mono_method_signature (method);
9056 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
9058 param_count = sig->param_count + sig->hasthis;
9060 for (i = 0; i < param_count; i++)
9061 mono_mb_emit_ldarg (mb, i);
9063 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
9064 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9066 mono_mb_emit_op (mb, CEE_CALL, method);
9067 mono_mb_emit_byte (mb, CEE_RET);
9072 method = mono_mb_create (mb, sig, param_count, NULL);
9075 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
9076 mono_error_assert_ok (&error);
9077 return compiled_ptr;
9083 * The code directly following this is the cache hit, value positive branch
9085 * This function takes a new method builder with 0 locals and adds two locals
9086 * to create multiple out-branches and the fall through state of having the object
9087 * on the stack after a cache miss
9090 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
9091 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
9092 MonoMethodBuilder *mb)
9096 /* allocate local 0 (pointer) obj_vtable */
9097 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9098 /* allocate local 1 (pointer) cached_vtable */
9099 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9102 mono_mb_emit_ldarg (mb, obj_arg_position);
9103 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
9105 /*obj_vtable = obj->vtable;*/
9106 mono_mb_emit_ldarg (mb, obj_arg_position);
9107 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9108 mono_mb_emit_byte (mb, CEE_LDIND_I);
9109 mono_mb_emit_stloc (mb, 0);
9111 /* cached_vtable = *cache*/
9112 mono_mb_emit_ldarg (mb, cache_arg_position);
9113 mono_mb_emit_byte (mb, CEE_LDIND_I);
9114 mono_mb_emit_stloc (mb, 1);
9116 mono_mb_emit_ldloc (mb, 1);
9117 mono_mb_emit_byte (mb, CEE_LDC_I4);
9118 mono_mb_emit_i4 (mb, ~0x1);
9119 mono_mb_emit_byte (mb, CEE_CONV_I);
9120 mono_mb_emit_byte (mb, CEE_AND);
9121 mono_mb_emit_ldloc (mb, 0);
9122 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9123 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9125 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9126 mono_mb_emit_ldloc (mb, 1);
9127 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9128 mono_mb_emit_byte (mb, CEE_CONV_U);
9129 mono_mb_emit_byte (mb, CEE_AND);
9130 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
9131 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9134 mono_mb_patch_branch (mb, cache_miss_pos);
9137 mono_mb_emit_ldarg (mb, obj_arg_position);
9138 mono_mb_emit_ldarg (mb, class_arg_position);
9139 mono_mb_emit_ldarg (mb, cache_arg_position);
9140 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
9143 #endif /* DISABLE_JIT */
9146 * mono_marshal_get_castclass_with_cache:
9147 * This does the equivalent of \c mono_object_castclass_with_cache.
9150 mono_marshal_get_castclass_with_cache (void)
9152 static MonoMethod *cached;
9154 MonoMethodBuilder *mb;
9155 MonoMethodSignature *sig;
9156 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
9159 const int obj_arg_position = 0;
9160 const int class_arg_position = 1;
9161 const int cache_arg_position = 2;
9166 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9167 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9168 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9169 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9170 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9171 sig->ret = &mono_defaults.object_class->byval_arg;
9175 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9176 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9177 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9180 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9181 mono_mb_emit_ldarg (mb, obj_arg_position);
9182 mono_mb_emit_byte (mb, CEE_RET);
9185 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9186 mono_mb_patch_branch (mb, invalid_cast_pos);
9187 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9190 mono_mb_patch_branch (mb, return_null_pos);
9191 mono_mb_emit_byte (mb, CEE_LDNULL);
9192 mono_mb_emit_byte (mb, CEE_RET);
9193 #endif /* DISABLE_JIT */
9195 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9196 res = mono_mb_create (mb, sig, 8, info);
9199 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9200 mono_free_method (res);
9201 mono_metadata_free_method_signature (sig);
9208 /* this is an icall */
9210 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
9213 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
9214 if (mono_error_set_pending_exception (&error))
9217 if (mono_object_is_transparent_proxy (obj))
9220 uintptr_t cache_update = (uintptr_t)obj->vtable;
9222 cache_update = cache_update | 0x1;
9224 *cache = cache_update;
9230 * mono_marshal_get_isinst_with_cache:
9231 * This does the equivalent of \c mono_marshal_isinst_with_cache.
9234 mono_marshal_get_isinst_with_cache (void)
9236 static MonoMethod *cached;
9238 MonoMethodBuilder *mb;
9239 MonoMethodSignature *sig;
9240 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
9243 const int obj_arg_position = 0;
9244 const int class_arg_position = 1;
9245 const int cache_arg_position = 2;
9250 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9251 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9253 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9255 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9257 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9258 sig->ret = &mono_defaults.object_class->byval_arg;
9262 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9263 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9264 // Return the object gotten via the slow path.
9265 mono_mb_emit_byte (mb, CEE_RET);
9268 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9269 mono_mb_patch_branch (mb, return_null_pos);
9270 mono_mb_emit_byte (mb, CEE_LDNULL);
9271 mono_mb_emit_byte (mb, CEE_RET);
9274 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9275 mono_mb_emit_ldarg (mb, obj_arg_position);
9276 mono_mb_emit_byte (mb, CEE_RET);
9279 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9280 res = mono_mb_create (mb, sig, 8, info);
9283 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9284 mono_free_method (res);
9285 mono_metadata_free_method_signature (sig);
9293 * mono_marshal_get_struct_to_ptr:
9294 * \param klass \c MonoClass
9296 * Generates IL code for <code>StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)</code>
9299 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9301 MonoMethodBuilder *mb;
9302 static MonoMethod *stoptr = NULL;
9306 g_assert (klass != NULL);
9308 mono_marshal_load_type_info (klass);
9310 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9311 if (marshal_info->str_to_ptr)
9312 return marshal_info->str_to_ptr;
9315 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9318 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9321 if (klass->blittable) {
9322 mono_mb_emit_byte (mb, CEE_LDARG_1);
9323 mono_mb_emit_byte (mb, CEE_LDARG_0);
9324 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9325 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9326 mono_mb_emit_byte (mb, CEE_PREFIX1);
9327 mono_mb_emit_byte (mb, CEE_CPBLK);
9330 /* allocate local 0 (pointer) src_ptr */
9331 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9332 /* allocate local 1 (pointer) dst_ptr */
9333 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9334 /* allocate local 2 (boolean) delete_old */
9335 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9336 mono_mb_emit_byte (mb, CEE_LDARG_2);
9337 mono_mb_emit_stloc (mb, 2);
9339 /* initialize src_ptr to point to the start of object data */
9340 mono_mb_emit_byte (mb, CEE_LDARG_0);
9341 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9342 mono_mb_emit_stloc (mb, 0);
9344 /* initialize dst_ptr */
9345 mono_mb_emit_byte (mb, CEE_LDARG_1);
9346 mono_mb_emit_stloc (mb, 1);
9348 emit_struct_conv (mb, klass, FALSE);
9351 mono_mb_emit_byte (mb, CEE_RET);
9353 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9354 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9357 mono_marshal_lock ();
9358 if (!marshal_info->str_to_ptr)
9359 marshal_info->str_to_ptr = res;
9361 res = marshal_info->str_to_ptr;
9362 mono_marshal_unlock ();
9367 * mono_marshal_get_ptr_to_struct:
9368 * \param klass \c MonoClass
9369 * Generates IL code for <code>PtrToStructure (IntPtr src, object structure)</code>
9372 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9374 MonoMethodBuilder *mb;
9375 static MonoMethodSignature *ptostr = NULL;
9379 g_assert (klass != NULL);
9381 mono_marshal_load_type_info (klass);
9383 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9384 if (marshal_info->ptr_to_str)
9385 return marshal_info->ptr_to_str;
9388 MonoMethodSignature *sig;
9390 /* Create the signature corresponding to
9391 static void PtrToStructure (IntPtr ptr, object structure);
9392 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9393 sig = mono_create_icall_signature ("void ptr object");
9394 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9396 mono_memory_barrier ();
9400 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9403 if (klass->blittable) {
9404 mono_mb_emit_byte (mb, CEE_LDARG_1);
9405 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9406 mono_mb_emit_byte (mb, CEE_LDARG_0);
9407 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9408 mono_mb_emit_byte (mb, CEE_PREFIX1);
9409 mono_mb_emit_byte (mb, CEE_CPBLK);
9412 /* allocate local 0 (pointer) src_ptr */
9413 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9414 /* allocate local 1 (pointer) dst_ptr */
9415 mono_mb_add_local (mb, &klass->this_arg);
9417 /* initialize src_ptr to point to the start of object data */
9418 mono_mb_emit_byte (mb, CEE_LDARG_0);
9419 mono_mb_emit_stloc (mb, 0);
9421 /* initialize dst_ptr */
9422 mono_mb_emit_byte (mb, CEE_LDARG_1);
9423 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9424 mono_mb_emit_stloc (mb, 1);
9426 emit_struct_conv (mb, klass, TRUE);
9429 mono_mb_emit_byte (mb, CEE_RET);
9431 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9432 res = mono_mb_create (mb, ptostr, 0, info);
9435 mono_marshal_lock ();
9436 if (!marshal_info->ptr_to_str)
9437 marshal_info->ptr_to_str = res;
9439 res = marshal_info->ptr_to_str;
9440 mono_marshal_unlock ();
9445 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9446 * This is used to avoid infinite recursion since it is hard to determine where to
9447 * replace a method with its synchronized wrapper, and where not.
9448 * The runtime should execute METHOD instead of the wrapper.
9451 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9453 MonoMethodBuilder *mb;
9455 MonoMethodSignature *sig;
9457 MonoGenericContext *ctx = NULL;
9458 MonoGenericContainer *container = NULL;
9460 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9461 ctx = &((MonoMethodInflated*)method)->context;
9462 method = ((MonoMethodInflated*)method)->declaring;
9463 container = mono_method_get_generic_container (method);
9465 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9466 g_assert (container);
9469 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9471 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9472 mono_mb_emit_byte (mb, CEE_RET);
9474 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9476 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9477 info->d.synchronized_inner.method = method;
9478 res = mono_mb_create (mb, sig, 0, info);
9482 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9483 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9489 * mono_marshal_get_synchronized_wrapper:
9490 * Generates IL code for the synchronized wrapper: the generated method
9491 * calls \p method while locking \c this or the parent type.
9494 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9496 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9497 MonoMethodSignature *sig;
9498 MonoExceptionClause *clause;
9499 MonoMethodBuilder *mb;
9503 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9504 MonoGenericContext *ctx = NULL;
9505 MonoMethod *orig_method = NULL;
9506 MonoGenericContainer *container = NULL;
9510 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9513 /* FIXME: Support generic methods too */
9514 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9515 orig_method = method;
9516 ctx = &((MonoMethodInflated*)method)->context;
9517 method = ((MonoMethodInflated*)method)->declaring;
9518 container = mono_method_get_generic_container (method);
9520 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9521 g_assert (container);
9528 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9529 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9533 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9534 if ((res = mono_marshal_find_in_cache (cache, method)))
9538 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9541 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9543 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9544 info->d.synchronized.method = method;
9547 mb->skip_visibility = 1;
9549 if (!MONO_TYPE_IS_VOID (sig->ret))
9550 ret_local = mono_mb_add_local (mb, sig->ret);
9553 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9554 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9555 mono_class_set_type_load_failure (method->klass, "");
9557 /* This will throw the type load exception when the wrapper is compiled */
9558 mono_mb_emit_byte (mb, CEE_LDNULL);
9559 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9560 mono_mb_emit_byte (mb, CEE_POP);
9562 if (!MONO_TYPE_IS_VOID (sig->ret))
9563 mono_mb_emit_ldloc (mb, ret_local);
9564 mono_mb_emit_byte (mb, CEE_RET);
9567 res = mono_mb_create_and_cache_full (cache, method,
9568 mb, sig, sig->param_count + 16, info, NULL);
9576 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9577 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9579 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9580 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9583 mono_marshal_lock ();
9585 if (!enter_method) {
9586 MonoMethodDesc *desc;
9588 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9589 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9590 g_assert (enter_method);
9591 mono_method_desc_free (desc);
9593 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9594 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9595 g_assert (exit_method);
9596 mono_method_desc_free (desc);
9598 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9599 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9600 g_assert (gettypefromhandle_method);
9601 mono_method_desc_free (desc);
9604 mono_marshal_unlock ();
9607 /* Push this or the type object */
9608 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9609 /* We have special handling for this in the JIT */
9610 int index = mono_mb_add_data (mb, method->klass);
9611 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9612 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9613 mono_mb_emit_i4 (mb, index);
9615 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9618 mono_mb_emit_ldarg (mb, 0);
9619 mono_mb_emit_stloc (mb, this_local);
9621 /* Call Monitor::Enter() */
9622 mono_mb_emit_ldloc (mb, this_local);
9623 mono_mb_emit_ldloc_addr (mb, taken_local);
9624 mono_mb_emit_managed_call (mb, enter_method, NULL);
9626 clause->try_offset = mono_mb_get_label (mb);
9628 /* Call the method */
9630 mono_mb_emit_ldarg (mb, 0);
9631 for (i = 0; i < sig->param_count; i++)
9632 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9636 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9637 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9639 mono_mb_emit_managed_call (mb, method, NULL);
9642 if (!MONO_TYPE_IS_VOID (sig->ret))
9643 mono_mb_emit_stloc (mb, ret_local);
9645 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9647 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9648 clause->handler_offset = mono_mb_get_label (mb);
9650 /* Call Monitor::Exit() if needed */
9651 mono_mb_emit_ldloc (mb, taken_local);
9652 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9653 mono_mb_emit_ldloc (mb, this_local);
9654 mono_mb_emit_managed_call (mb, exit_method, NULL);
9655 mono_mb_patch_branch (mb, pos2);
9656 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9658 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9660 mono_mb_patch_branch (mb, pos);
9661 if (!MONO_TYPE_IS_VOID (sig->ret))
9662 mono_mb_emit_ldloc (mb, ret_local);
9663 mono_mb_emit_byte (mb, CEE_RET);
9665 mono_mb_set_clauses (mb, 1, clause);
9670 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9671 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9673 res = mono_mb_create_and_cache_full (cache, method,
9674 mb, sig, sig->param_count + 16, info, NULL);
9683 * mono_marshal_get_unbox_wrapper:
9684 * The returned method calls \p method unboxing the \c this argument.
9687 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9689 MonoMethodSignature *sig = mono_method_signature (method);
9691 MonoMethodBuilder *mb;
9696 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9698 if ((res = mono_marshal_find_in_cache (cache, method)))
9701 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9703 g_assert (sig->hasthis);
9706 mono_mb_emit_ldarg (mb, 0);
9707 mono_mb_emit_icon (mb, sizeof (MonoObject));
9708 mono_mb_emit_byte (mb, CEE_ADD);
9709 for (i = 0; i < sig->param_count; ++i)
9710 mono_mb_emit_ldarg (mb, i + 1);
9711 mono_mb_emit_managed_call (mb, method, NULL);
9712 mono_mb_emit_byte (mb, CEE_RET);
9715 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9716 info->d.unbox.method = method;
9718 res = mono_mb_create_and_cache_full (cache, method,
9719 mb, sig, sig->param_count + 16, info, NULL);
9722 /* mono_method_print_code (res); */
9728 STELEMREF_OBJECT, /*no check at all*/
9729 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9730 STELEMREF_CLASS, /*only the klass->parents check*/
9731 STELEMREF_CLASS_SMALL_IDEPTH, /* like STELEMREF_CLASS bit without the idepth check */
9732 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9733 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9734 STELEMREF_KIND_COUNT
9737 static const char *strelemref_wrapper_name[] = {
9738 "object", "sealed_class", "class", "class_small_idepth", "interface", "complex"
9742 is_monomorphic_array (MonoClass *klass)
9744 MonoClass *element_class;
9745 if (klass->rank != 1)
9748 element_class = klass->element_class;
9749 return mono_class_is_sealed (element_class) || element_class->valuetype;
9753 get_virtual_stelemref_kind (MonoClass *element_class)
9755 if (element_class == mono_defaults.object_class)
9756 return STELEMREF_OBJECT;
9757 if (is_monomorphic_array (element_class))
9758 return STELEMREF_SEALED_CLASS;
9759 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9760 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9761 #ifdef COMPRESSED_INTERFACE_BITMAP
9762 return STELEMREF_COMPLEX;
9764 return STELEMREF_INTERFACE;
9766 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9767 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9768 return STELEMREF_COMPLEX;
9769 if (mono_class_is_sealed (element_class))
9770 return STELEMREF_SEALED_CLASS;
9771 if (element_class->idepth <= MONO_DEFAULT_SUPERTABLE_SIZE)
9772 return STELEMREF_CLASS_SMALL_IDEPTH;
9774 return STELEMREF_CLASS;
9780 load_array_element_address (MonoMethodBuilder *mb)
9782 mono_mb_emit_ldarg (mb, 0);
9783 mono_mb_emit_ldarg (mb, 1);
9784 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9788 load_array_class (MonoMethodBuilder *mb, int aklass)
9790 mono_mb_emit_ldarg (mb, 0);
9791 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9792 mono_mb_emit_byte (mb, CEE_LDIND_I);
9793 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9794 mono_mb_emit_byte (mb, CEE_LDIND_I);
9795 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9796 mono_mb_emit_byte (mb, CEE_LDIND_I);
9797 mono_mb_emit_stloc (mb, aklass);
9801 load_value_class (MonoMethodBuilder *mb, int vklass)
9803 mono_mb_emit_ldarg (mb, 2);
9804 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9805 mono_mb_emit_byte (mb, CEE_LDIND_I);
9806 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9807 mono_mb_emit_byte (mb, CEE_LDIND_I);
9808 mono_mb_emit_stloc (mb, vklass);
9814 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9816 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9817 printf ("slow vstore of %s\n", name);
9824 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9825 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9826 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9827 * - Add a case for arrays of arrays.
9830 get_virtual_stelemref_wrapper (int kind)
9832 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9833 static MonoMethodSignature *signature;
9834 MonoMethodBuilder *mb;
9837 const char *param_names [16];
9838 guint32 b1, b2, b3, b4;
9839 int aklass, vklass, vtable, uiid;
9840 int array_slot_addr;
9843 if (cached_methods [kind])
9844 return cached_methods [kind];
9846 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9847 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9851 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9853 /* void this::stelemref (size_t idx, void* value) */
9854 sig->ret = &mono_defaults.void_class->byval_arg;
9855 sig->hasthis = TRUE;
9856 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9857 sig->params [1] = &mono_defaults.object_class->byval_arg;
9862 param_names [0] = "index";
9863 param_names [1] = "value";
9864 mono_mb_set_param_names (mb, param_names);
9866 /*For now simply call plain old stelemref*/
9868 case STELEMREF_OBJECT:
9869 /* ldelema (implicit bound check) */
9870 load_array_element_address (mb);
9872 mono_mb_emit_ldarg (mb, 2);
9873 mono_mb_emit_byte (mb, CEE_STIND_REF);
9874 mono_mb_emit_byte (mb, CEE_RET);
9877 case STELEMREF_COMPLEX: {
9880 <ldelema (bound check)>
9883 if (!mono_object_isinst (value, aklass))
9887 *array_slot_addr = value;
9890 throw new ArrayTypeMismatchException ();
9893 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9894 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9895 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9899 /*Use this to debug/record stores that are going thru the slow path*/
9900 MonoMethodSignature *csig;
9901 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9902 csig->ret = &mono_defaults.void_class->byval_arg;
9903 csig->params [0] = &mono_defaults.object_class->byval_arg;
9904 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9905 csig->params [2] = &mono_defaults.object_class->byval_arg;
9906 mono_mb_emit_ldarg (mb, 0);
9907 mono_mb_emit_ldarg (mb, 1);
9908 mono_mb_emit_ldarg (mb, 2);
9909 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9913 /* ldelema (implicit bound check) */
9914 load_array_element_address (mb);
9915 mono_mb_emit_stloc (mb, array_slot_addr);
9917 /* if (!value) goto do_store */
9918 mono_mb_emit_ldarg (mb, 2);
9919 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9921 /* aklass = array->vtable->klass->element_class */
9922 load_array_class (mb, aklass);
9923 /* vklass = value->vtable->klass */
9924 load_value_class (mb, vklass);
9927 mono_mb_emit_ldloc (mb, vklass);
9928 mono_mb_emit_ldloc (mb, aklass);
9929 b_fast = mono_mb_emit_branch (mb, CEE_BEQ);
9931 /*if (mono_object_isinst (value, aklass)) */
9932 mono_mb_emit_ldarg (mb, 2);
9933 mono_mb_emit_ldloc (mb, aklass);
9934 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9935 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9938 mono_mb_patch_branch (mb, b1);
9939 mono_mb_patch_branch (mb, b_fast);
9940 mono_mb_emit_ldloc (mb, array_slot_addr);
9941 mono_mb_emit_ldarg (mb, 2);
9942 mono_mb_emit_byte (mb, CEE_STIND_REF);
9943 mono_mb_emit_byte (mb, CEE_RET);
9946 mono_mb_patch_branch (mb, b2);
9948 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9951 case STELEMREF_SEALED_CLASS:
9953 <ldelema (bound check)>
9957 aklass = array->vtable->klass->element_class;
9958 vklass = value->vtable->klass;
9960 if (vklass != aklass)
9964 *array_slot_addr = value;
9967 throw new ArrayTypeMismatchException ();
9969 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9970 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9971 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9973 /* ldelema (implicit bound check) */
9974 load_array_element_address (mb);
9975 mono_mb_emit_stloc (mb, array_slot_addr);
9977 /* if (!value) goto do_store */
9978 mono_mb_emit_ldarg (mb, 2);
9979 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9981 /* aklass = array->vtable->klass->element_class */
9982 load_array_class (mb, aklass);
9984 /* vklass = value->vtable->klass */
9985 load_value_class (mb, vklass);
9987 /*if (vklass != aklass) goto do_exception; */
9988 mono_mb_emit_ldloc (mb, aklass);
9989 mono_mb_emit_ldloc (mb, vklass);
9990 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9993 mono_mb_patch_branch (mb, b1);
9994 mono_mb_emit_ldloc (mb, array_slot_addr);
9995 mono_mb_emit_ldarg (mb, 2);
9996 mono_mb_emit_byte (mb, CEE_STIND_REF);
9997 mono_mb_emit_byte (mb, CEE_RET);
10000 mono_mb_patch_branch (mb, b2);
10001 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10004 case STELEMREF_CLASS: {
10007 <ldelema (bound check)>
10011 aklass = array->vtable->klass->element_class;
10012 vklass = value->vtable->klass;
10014 if (vklass->idepth < aklass->idepth)
10017 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10021 *array_slot_addr = value;
10025 throw new ArrayTypeMismatchException ();
10027 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10028 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10029 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10031 /* ldelema (implicit bound check) */
10032 load_array_element_address (mb);
10033 mono_mb_emit_stloc (mb, array_slot_addr);
10035 /* if (!value) goto do_store */
10036 mono_mb_emit_ldarg (mb, 2);
10037 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10039 /* aklass = array->vtable->klass->element_class */
10040 load_array_class (mb, aklass);
10042 /* vklass = value->vtable->klass */
10043 load_value_class (mb, vklass);
10045 /* if (vklass->idepth < aklass->idepth) goto failue */
10046 mono_mb_emit_ldloc (mb, vklass);
10047 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10048 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10050 mono_mb_emit_ldloc (mb, aklass);
10051 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10052 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10054 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10056 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10057 mono_mb_emit_ldloc (mb, vklass);
10058 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10059 mono_mb_emit_byte (mb, CEE_LDIND_I);
10061 mono_mb_emit_ldloc (mb, aklass);
10062 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10063 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10064 mono_mb_emit_icon (mb, 1);
10065 mono_mb_emit_byte (mb, CEE_SUB);
10066 mono_mb_emit_icon (mb, sizeof (void*));
10067 mono_mb_emit_byte (mb, CEE_MUL);
10068 mono_mb_emit_byte (mb, CEE_ADD);
10069 mono_mb_emit_byte (mb, CEE_LDIND_I);
10071 mono_mb_emit_ldloc (mb, aklass);
10072 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10075 mono_mb_patch_branch (mb, b1);
10076 mono_mb_emit_ldloc (mb, array_slot_addr);
10077 mono_mb_emit_ldarg (mb, 2);
10078 mono_mb_emit_byte (mb, CEE_STIND_REF);
10079 mono_mb_emit_byte (mb, CEE_RET);
10081 /* do_exception: */
10082 mono_mb_patch_branch (mb, b3);
10083 mono_mb_patch_branch (mb, b4);
10085 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10089 case STELEMREF_CLASS_SMALL_IDEPTH:
10092 <ldelema (bound check)>
10096 aklass = array->vtable->klass->element_class;
10097 vklass = value->vtable->klass;
10099 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10103 *array_slot_addr = value;
10107 throw new ArrayTypeMismatchException ();
10109 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10110 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10111 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10113 /* ldelema (implicit bound check) */
10114 load_array_element_address (mb);
10115 mono_mb_emit_stloc (mb, array_slot_addr);
10117 /* if (!value) goto do_store */
10118 mono_mb_emit_ldarg (mb, 2);
10119 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10121 /* aklass = array->vtable->klass->element_class */
10122 load_array_class (mb, aklass);
10124 /* vklass = value->vtable->klass */
10125 load_value_class (mb, vklass);
10127 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10128 mono_mb_emit_ldloc (mb, vklass);
10129 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10130 mono_mb_emit_byte (mb, CEE_LDIND_I);
10132 mono_mb_emit_ldloc (mb, aklass);
10133 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10134 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10135 mono_mb_emit_icon (mb, 1);
10136 mono_mb_emit_byte (mb, CEE_SUB);
10137 mono_mb_emit_icon (mb, sizeof (void*));
10138 mono_mb_emit_byte (mb, CEE_MUL);
10139 mono_mb_emit_byte (mb, CEE_ADD);
10140 mono_mb_emit_byte (mb, CEE_LDIND_I);
10142 mono_mb_emit_ldloc (mb, aklass);
10143 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10146 mono_mb_patch_branch (mb, b1);
10147 mono_mb_emit_ldloc (mb, array_slot_addr);
10148 mono_mb_emit_ldarg (mb, 2);
10149 mono_mb_emit_byte (mb, CEE_STIND_REF);
10150 mono_mb_emit_byte (mb, CEE_RET);
10152 /* do_exception: */
10153 mono_mb_patch_branch (mb, b4);
10155 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10158 case STELEMREF_INTERFACE:
10165 klass = array->obj.vtable->klass->element_class;
10166 vt = value->vtable;
10167 uiid = klass->interface_id;
10168 if (uiid > vt->max_interface_id)
10170 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10173 mono_array_setref (array, index, value);
10176 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10178 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10179 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10180 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10181 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10183 /* ldelema (implicit bound check) */
10184 load_array_element_address (mb);
10185 mono_mb_emit_stloc (mb, array_slot_addr);
10187 /* if (!value) goto do_store */
10188 mono_mb_emit_ldarg (mb, 2);
10189 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10191 /* klass = array->vtable->klass->element_class */
10192 load_array_class (mb, aklass);
10194 /* vt = value->vtable */
10195 mono_mb_emit_ldarg (mb, 2);
10196 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10197 mono_mb_emit_byte (mb, CEE_LDIND_I);
10198 mono_mb_emit_stloc (mb, vtable);
10200 /* uiid = klass->interface_id; */
10201 mono_mb_emit_ldloc (mb, aklass);
10202 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
10203 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10204 mono_mb_emit_stloc (mb, uiid);
10206 /*if (uiid > vt->max_interface_id)*/
10207 mono_mb_emit_ldloc (mb, uiid);
10208 mono_mb_emit_ldloc (mb, vtable);
10209 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
10210 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10211 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10213 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10215 /*vt->interface_bitmap*/
10216 mono_mb_emit_ldloc (mb, vtable);
10217 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10218 mono_mb_emit_byte (mb, CEE_LDIND_I);
10221 mono_mb_emit_ldloc (mb, uiid);
10222 mono_mb_emit_icon (mb, 3);
10223 mono_mb_emit_byte (mb, CEE_SHR_UN);
10225 /*vt->interface_bitmap [(uiid) >> 3]*/
10226 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10227 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10229 /*(1 << ((uiid)&7)))*/
10230 mono_mb_emit_icon (mb, 1);
10231 mono_mb_emit_ldloc (mb, uiid);
10232 mono_mb_emit_icon (mb, 7);
10233 mono_mb_emit_byte (mb, CEE_AND);
10234 mono_mb_emit_byte (mb, CEE_SHL);
10236 /*bitwise and the whole thing*/
10237 mono_mb_emit_byte (mb, CEE_AND);
10238 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10241 mono_mb_patch_branch (mb, b1);
10242 mono_mb_emit_ldloc (mb, array_slot_addr);
10243 mono_mb_emit_ldarg (mb, 2);
10244 mono_mb_emit_byte (mb, CEE_STIND_REF);
10245 mono_mb_emit_byte (mb, CEE_RET);
10247 /* do_exception: */
10248 mono_mb_patch_branch (mb, b2);
10249 mono_mb_patch_branch (mb, b3);
10250 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10254 mono_mb_emit_ldarg (mb, 0);
10255 mono_mb_emit_ldarg (mb, 1);
10256 mono_mb_emit_ldarg (mb, 2);
10257 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10258 mono_mb_emit_byte (mb, CEE_RET);
10261 #endif /* DISABLE_JIT */
10262 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10263 info->d.virtual_stelemref.kind = kind;
10264 res = mono_mb_create (mb, signature, 4, info);
10265 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10267 mono_marshal_lock ();
10268 if (!cached_methods [kind]) {
10269 cached_methods [kind] = res;
10270 mono_marshal_unlock ();
10272 mono_marshal_unlock ();
10273 mono_free_method (res);
10277 return cached_methods [kind];
10281 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10285 g_assert (array_class->rank == 1);
10286 kind = get_virtual_stelemref_kind (array_class->element_class);
10288 return get_virtual_stelemref_wrapper (kind);
10292 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10297 *nwrappers = STELEMREF_KIND_COUNT;
10298 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10299 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10300 res [i] = get_virtual_stelemref_wrapper (i);
10305 * mono_marshal_get_stelemref:
10308 mono_marshal_get_stelemref (void)
10310 static MonoMethod* ret = NULL;
10311 MonoMethodSignature *sig;
10312 MonoMethodBuilder *mb;
10315 guint32 b1, b2, b3, b4;
10317 int aklass, vklass;
10318 int array_slot_addr;
10323 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10326 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10328 /* void stelemref (void* array, int idx, void* value) */
10329 sig->ret = &mono_defaults.void_class->byval_arg;
10330 sig->params [0] = &mono_defaults.object_class->byval_arg;
10331 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10332 sig->params [2] = &mono_defaults.object_class->byval_arg;
10334 #ifndef DISABLE_JIT
10335 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10336 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10337 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10341 <ldelema (bound check)>
10345 aklass = array->vtable->klass->element_class;
10346 vklass = value->vtable->klass;
10348 if (vklass->idepth < aklass->idepth)
10351 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10355 *array_slot_addr = value;
10359 if (mono_object_isinst (value, aklass))
10362 throw new ArrayTypeMismatchException ();
10365 /* ldelema (implicit bound check) */
10366 mono_mb_emit_ldarg (mb, 0);
10367 mono_mb_emit_ldarg (mb, 1);
10368 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10369 mono_mb_emit_stloc (mb, array_slot_addr);
10371 /* if (!value) goto do_store */
10372 mono_mb_emit_ldarg (mb, 2);
10373 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10375 /* aklass = array->vtable->klass->element_class */
10376 mono_mb_emit_ldarg (mb, 0);
10377 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10378 mono_mb_emit_byte (mb, CEE_LDIND_I);
10379 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10380 mono_mb_emit_byte (mb, CEE_LDIND_I);
10381 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10382 mono_mb_emit_byte (mb, CEE_LDIND_I);
10383 mono_mb_emit_stloc (mb, aklass);
10385 /* vklass = value->vtable->klass */
10386 mono_mb_emit_ldarg (mb, 2);
10387 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10388 mono_mb_emit_byte (mb, CEE_LDIND_I);
10389 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10390 mono_mb_emit_byte (mb, CEE_LDIND_I);
10391 mono_mb_emit_stloc (mb, vklass);
10393 /* if (vklass->idepth < aklass->idepth) goto failue */
10394 mono_mb_emit_ldloc (mb, vklass);
10395 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10396 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10398 mono_mb_emit_ldloc (mb, aklass);
10399 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10400 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10402 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10404 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10405 mono_mb_emit_ldloc (mb, vklass);
10406 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10407 mono_mb_emit_byte (mb, CEE_LDIND_I);
10409 mono_mb_emit_ldloc (mb, aklass);
10410 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10411 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10412 mono_mb_emit_icon (mb, 1);
10413 mono_mb_emit_byte (mb, CEE_SUB);
10414 mono_mb_emit_icon (mb, sizeof (void*));
10415 mono_mb_emit_byte (mb, CEE_MUL);
10416 mono_mb_emit_byte (mb, CEE_ADD);
10417 mono_mb_emit_byte (mb, CEE_LDIND_I);
10419 mono_mb_emit_ldloc (mb, aklass);
10421 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10423 copy_pos = mono_mb_get_label (mb);
10425 mono_mb_patch_branch (mb, b1);
10426 mono_mb_emit_ldloc (mb, array_slot_addr);
10427 mono_mb_emit_ldarg (mb, 2);
10428 mono_mb_emit_byte (mb, CEE_STIND_REF);
10430 mono_mb_emit_byte (mb, CEE_RET);
10433 mono_mb_patch_branch (mb, b2);
10434 mono_mb_patch_branch (mb, b3);
10436 mono_mb_emit_ldarg (mb, 2);
10437 mono_mb_emit_ldloc (mb, aklass);
10438 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10440 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10441 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10442 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10444 mono_mb_emit_byte (mb, CEE_RET);
10446 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10447 ret = mono_mb_create (mb, sig, 4, info);
10454 * mono_marshal_get_gsharedvt_in_wrapper:
10456 * This wrapper handles calls from normal code to gsharedvt code.
10459 mono_marshal_get_gsharedvt_in_wrapper (void)
10461 static MonoMethod* ret = NULL;
10462 MonoMethodSignature *sig;
10463 MonoMethodBuilder *mb;
10469 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10471 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10472 sig->ret = &mono_defaults.void_class->byval_arg;
10474 #ifndef DISABLE_JIT
10476 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10478 mono_mb_emit_byte (mb, CEE_RET);
10480 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10481 ret = mono_mb_create (mb, sig, 4, info);
10488 * mono_marshal_get_gsharedvt_out_wrapper:
10490 * This wrapper handles calls from gsharedvt code to normal code.
10493 mono_marshal_get_gsharedvt_out_wrapper (void)
10495 static MonoMethod* ret = NULL;
10496 MonoMethodSignature *sig;
10497 MonoMethodBuilder *mb;
10503 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10505 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10506 sig->ret = &mono_defaults.void_class->byval_arg;
10508 #ifndef DISABLE_JIT
10510 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10512 mono_mb_emit_byte (mb, CEE_RET);
10514 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10515 ret = mono_mb_create (mb, sig, 4, info);
10524 MonoMethod *method;
10527 /* LOCKING: vars accessed under the marshal lock */
10528 static ArrayElemAddr *elem_addr_cache = NULL;
10529 static int elem_addr_cache_size = 0;
10530 static int elem_addr_cache_next = 0;
10533 * mono_marshal_get_array_address:
10534 * \param rank rank of the array type
10535 * \param elem_size size in bytes of an element of an array.
10537 * Returns a MonoMethod that implements the code to get the address
10538 * of an element in a multi-dimenasional array of \p rank dimensions.
10539 * The returned method takes an array as the first argument and then
10540 * \p rank indexes for the \p rank dimensions.
10541 * If ELEM_SIZE is 0, read the array size from the array object.
10544 mono_marshal_get_array_address (int rank, int elem_size)
10547 MonoMethodBuilder *mb;
10548 MonoMethodSignature *sig;
10551 int i, bounds, ind, realidx;
10552 int branch_pos, *branch_positions;
10556 mono_marshal_lock ();
10557 for (i = 0; i < elem_addr_cache_next; ++i) {
10558 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10559 ret = elem_addr_cache [i].method;
10563 mono_marshal_unlock ();
10567 branch_positions = g_new0 (int, rank);
10569 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10571 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10572 sig->ret = &mono_defaults.int_class->byval_arg;
10573 sig->params [0] = &mono_defaults.object_class->byval_arg;
10574 for (i = 0; i < rank; ++i) {
10575 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10578 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10579 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10582 #ifndef DISABLE_JIT
10583 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10584 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10585 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10587 /* bounds = array->bounds; */
10588 mono_mb_emit_ldarg (mb, 0);
10589 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10590 mono_mb_emit_byte (mb, CEE_LDIND_I);
10591 mono_mb_emit_stloc (mb, bounds);
10593 /* ind is the overall element index, realidx is the partial index in a single dimension */
10594 /* ind = idx0 - bounds [0].lower_bound */
10595 mono_mb_emit_ldarg (mb, 1);
10596 mono_mb_emit_ldloc (mb, bounds);
10597 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10598 mono_mb_emit_byte (mb, CEE_ADD);
10599 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10600 mono_mb_emit_byte (mb, CEE_SUB);
10601 mono_mb_emit_stloc (mb, ind);
10602 /* if (ind >= bounds [0].length) goto exeception; */
10603 mono_mb_emit_ldloc (mb, ind);
10604 mono_mb_emit_ldloc (mb, bounds);
10605 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10606 mono_mb_emit_byte (mb, CEE_ADD);
10607 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10608 /* note that we use unsigned comparison */
10609 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10611 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10612 * We could also decide to ignore the passed elem_size and get it
10613 * from the array object, to reduce the number of methods we generate:
10614 * the additional cost is 3 memory loads and a non-immediate mul.
10616 for (i = 1; i < rank; ++i) {
10617 /* realidx = idxi - bounds [i].lower_bound */
10618 mono_mb_emit_ldarg (mb, 1 + i);
10619 mono_mb_emit_ldloc (mb, bounds);
10620 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10621 mono_mb_emit_byte (mb, CEE_ADD);
10622 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10623 mono_mb_emit_byte (mb, CEE_SUB);
10624 mono_mb_emit_stloc (mb, realidx);
10625 /* if (realidx >= bounds [i].length) goto exeception; */
10626 mono_mb_emit_ldloc (mb, realidx);
10627 mono_mb_emit_ldloc (mb, bounds);
10628 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10629 mono_mb_emit_byte (mb, CEE_ADD);
10630 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10631 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10632 /* ind = ind * bounds [i].length + realidx */
10633 mono_mb_emit_ldloc (mb, ind);
10634 mono_mb_emit_ldloc (mb, bounds);
10635 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10636 mono_mb_emit_byte (mb, CEE_ADD);
10637 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10638 mono_mb_emit_byte (mb, CEE_MUL);
10639 mono_mb_emit_ldloc (mb, realidx);
10640 mono_mb_emit_byte (mb, CEE_ADD);
10641 mono_mb_emit_stloc (mb, ind);
10644 /* return array->vector + ind * element_size */
10645 mono_mb_emit_ldarg (mb, 0);
10646 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10647 mono_mb_emit_ldloc (mb, ind);
10649 mono_mb_emit_icon (mb, elem_size);
10651 /* Load arr->vtable->klass->sizes.element_class */
10652 mono_mb_emit_ldarg (mb, 0);
10653 mono_mb_emit_byte (mb, CEE_CONV_I);
10654 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10655 mono_mb_emit_byte (mb, CEE_ADD);
10656 mono_mb_emit_byte (mb, CEE_LDIND_I);
10657 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10658 mono_mb_emit_byte (mb, CEE_ADD);
10659 mono_mb_emit_byte (mb, CEE_LDIND_I);
10660 /* sizes is an union, so this reads sizes.element_size */
10661 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10662 mono_mb_emit_byte (mb, CEE_ADD);
10663 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10665 mono_mb_emit_byte (mb, CEE_MUL);
10666 mono_mb_emit_byte (mb, CEE_ADD);
10667 mono_mb_emit_byte (mb, CEE_RET);
10669 /* patch the branches to get here and throw */
10670 for (i = 1; i < rank; ++i) {
10671 mono_mb_patch_branch (mb, branch_positions [i]);
10673 mono_mb_patch_branch (mb, branch_pos);
10674 /* throw exception */
10675 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10677 g_free (branch_positions);
10678 #endif /* DISABLE_JIT */
10680 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10681 info->d.element_addr.rank = rank;
10682 info->d.element_addr.elem_size = elem_size;
10683 ret = mono_mb_create (mb, sig, 4, info);
10686 /* cache the result */
10688 mono_marshal_lock ();
10689 for (i = 0; i < elem_addr_cache_next; ++i) {
10690 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10691 /* FIXME: free ret */
10692 ret = elem_addr_cache [i].method;
10698 if (elem_addr_cache_next >= elem_addr_cache_size) {
10699 int new_size = elem_addr_cache_size + 4;
10700 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10701 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10702 g_free (elem_addr_cache);
10703 elem_addr_cache = new_array;
10704 elem_addr_cache_size = new_size;
10706 elem_addr_cache [elem_addr_cache_next].rank = rank;
10707 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10708 elem_addr_cache [elem_addr_cache_next].method = ret;
10709 elem_addr_cache_next ++;
10711 mono_marshal_unlock ();
10716 * mono_marshal_get_array_accessor_wrapper:
10718 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10721 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10723 MonoMethodSignature *sig;
10724 MonoMethodBuilder *mb;
10728 MonoGenericContext *ctx = NULL;
10729 MonoMethod *orig_method = NULL;
10730 MonoGenericContainer *container = NULL;
10734 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10735 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10736 * FIXME: Use generic methods.
10743 g_assert_not_reached ();
10745 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10746 if ((res = mono_marshal_find_in_cache (cache, method)))
10750 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10753 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10755 #ifndef DISABLE_JIT
10756 /* Call the method */
10758 mono_mb_emit_ldarg (mb, 0);
10759 for (i = 0; i < sig->param_count; i++)
10760 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10764 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10765 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10767 mono_mb_emit_managed_call (mb, method, NULL);
10769 mono_mb_emit_byte (mb, CEE_RET);
10772 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10773 info->d.array_accessor.method = method;
10777 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10778 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10780 res = mono_mb_create_and_cache_full (cache, method,
10781 mb, sig, sig->param_count + 16,
10790 static inline void*
10791 mono_marshal_alloc_co_task_mem (size_t size)
10793 if ((gulong)size == 0)
10794 /* This returns a valid pointer for size 0 on MS.NET */
10797 return g_try_malloc ((gulong)size);
10802 * mono_marshal_alloc:
10805 mono_marshal_alloc (gsize size, MonoError *error)
10809 error_init (error);
10811 res = mono_marshal_alloc_co_task_mem (size);
10813 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10818 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10820 ves_icall_marshal_alloc (gsize size)
10823 void *ret = mono_marshal_alloc (size, &error);
10824 if (!mono_error_ok (&error)) {
10825 mono_error_set_pending_exception (&error);
10834 mono_marshal_free_co_task_mem (void *ptr)
10842 * mono_marshal_free:
10845 mono_marshal_free (gpointer ptr)
10847 mono_marshal_free_co_task_mem (ptr);
10851 * mono_marshal_free_array:
10854 mono_marshal_free_array (gpointer *ptr, int size)
10861 for (i = 0; i < size; i++)
10867 mono_marshal_string_to_utf16 (MonoString *s)
10869 return s ? mono_string_chars (s) : NULL;
10872 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10874 mono_marshal_string_to_utf16_copy (MonoString *s)
10880 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10881 if (!mono_error_ok (&error)) {
10882 mono_error_set_pending_exception (&error);
10885 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10886 res [mono_string_length (s)] = 0;
10892 * mono_marshal_set_last_error:
10894 * This function is invoked to set the last error value from a P/Invoke call
10895 * which has \c SetLastError set.
10898 mono_marshal_set_last_error (void)
10901 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10903 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10908 mono_marshal_set_last_error_windows (int error)
10911 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10916 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10917 gpointer dest, gint32 length)
10922 MONO_CHECK_ARG_NULL (src,);
10923 MONO_CHECK_ARG_NULL (dest,);
10925 if (src->obj.vtable->klass->rank != 1) {
10926 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10929 if (start_index < 0) {
10930 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10934 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10937 if (start_index + length > mono_array_length (src)) {
10938 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10942 element_size = mono_array_element_size (src->obj.vtable->klass);
10944 /* no references should be involved */
10945 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10947 memcpy (dest, source_addr, length * element_size);
10951 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10952 MonoArray *dest, gint32 length)
10957 MONO_CHECK_ARG_NULL (src,);
10958 MONO_CHECK_ARG_NULL (dest,);
10960 if (dest->obj.vtable->klass->rank != 1) {
10961 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10964 if (start_index < 0) {
10965 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10969 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10972 if (start_index + length > mono_array_length (dest)) {
10973 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10976 element_size = mono_array_element_size (dest->obj.vtable->klass);
10978 /* no references should be involved */
10979 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10981 memcpy (dest_addr, src, length * element_size);
10985 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr, MonoError *error)
10987 error_init (error);
10989 return MONO_HANDLE_CAST (MonoString, NULL_HANDLE);
10991 return mono_string_new_handle (mono_domain_get (), ptr, error);
10995 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10998 MonoString *result = NULL;
10999 error_init (&error);
11001 mono_error_set_argument_null (&error, "ptr", "");
11003 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
11004 mono_error_set_pending_exception (&error);
11009 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
11012 MonoString *res = NULL;
11013 MonoDomain *domain = mono_domain_get ();
11023 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
11024 if (!mono_error_ok (&error)) {
11025 mono_error_set_pending_exception (&error);
11032 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
11035 MonoString *res = NULL;
11036 MonoDomain *domain = mono_domain_get ();
11038 error_init (&error);
11042 mono_error_set_argument_null (&error, "ptr", "");
11044 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
11047 if (!mono_error_ok (&error))
11048 mono_error_set_pending_exception (&error);
11053 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
11055 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
11059 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionTypeHandle rtype, MonoError *error)
11065 error_init (error);
11067 if (MONO_HANDLE_IS_NULL (rtype)) {
11068 mono_error_set_argument_null (error, "type", "");
11072 type = MONO_HANDLE_GETVAL (rtype, type);
11073 klass = mono_class_from_mono_type (type);
11074 if (!mono_class_init (klass)) {
11075 mono_error_set_for_class_failure (error, klass);
11079 layout = (mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK);
11081 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
11082 return sizeof (gpointer);
11083 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11084 mono_error_set_argument (error, "t", "Type %s cannot be marshaled as an unmanaged structure.", klass->name);
11088 return mono_class_native_size (klass, NULL);
11092 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
11095 MonoMethod *method;
11098 MONO_CHECK_ARG_NULL (obj,);
11099 MONO_CHECK_ARG_NULL (dst,);
11101 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
11105 pa [2] = &delete_old;
11107 mono_runtime_invoke_checked (method, NULL, pa, &error);
11108 if (!mono_error_ok (&error))
11109 mono_error_set_pending_exception (&error);
11113 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
11115 MonoMethod *method;
11118 error_init (error);
11120 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
11125 mono_runtime_invoke_checked (method, NULL, pa, error);
11129 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
11134 MONO_CHECK_ARG_NULL (src,);
11135 MONO_CHECK_ARG_NULL (dst,);
11137 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
11139 if (t->type == MONO_TYPE_VALUETYPE) {
11140 MonoException *exc;
11143 tmp = g_strdup_printf ("Destination is a boxed value type.");
11144 exc = mono_get_exception_argument ("dst", tmp);
11147 mono_set_pending_exception (exc);
11151 ptr_to_structure (src, dst, &error);
11152 if (!mono_error_ok (&error))
11153 mono_error_set_pending_exception (&error);
11157 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
11161 MonoDomain *domain = mono_domain_get ();
11166 MONO_CHECK_ARG_NULL (type, NULL);
11168 klass = mono_class_from_mono_type (type->type);
11169 if (!mono_class_init (klass)) {
11170 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11174 res = mono_object_new_checked (domain, klass, &error);
11175 if (!mono_error_ok (&error)) {
11176 mono_error_set_pending_exception (&error);
11180 ptr_to_structure (src, res, &error);
11181 if (!mono_error_ok (&error)) {
11182 mono_error_set_pending_exception (&error);
11190 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionTypeHandle ref_type, MonoStringHandle field_name, MonoError *error)
11192 error_init (error);
11193 if (MONO_HANDLE_IS_NULL (ref_type)) {
11194 mono_error_set_argument_null (error, "type", "");
11197 if (MONO_HANDLE_IS_NULL (field_name)) {
11198 mono_error_set_argument_null (error, "fieldName", "");
11202 char *fname = mono_string_handle_to_utf8 (field_name, error);
11203 return_val_if_nok (error, 0);
11205 MonoType *type = MONO_HANDLE_GETVAL (ref_type, type);
11206 MonoClass *klass = mono_class_from_mono_type (type);
11207 if (!mono_class_init (klass)) {
11208 mono_error_set_for_class_failure (error, klass);
11212 int match_index = -1;
11213 while (klass && match_index == -1) {
11214 MonoClassField* field;
11216 gpointer iter = NULL;
11217 while ((field = mono_class_get_fields (klass, &iter))) {
11218 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11220 if (!strcmp (fname, mono_field_get_name (field))) {
11227 if (match_index == -1)
11228 klass = klass->parent;
11233 if(match_index == -1) {
11234 /* Get back original class instance */
11235 klass = mono_class_from_mono_type (type);
11237 mono_error_set_argument (error, "fieldName", "Field passed in is not a marshaled member of the type %s", klass->name);
11241 MonoMarshalType *info = mono_marshal_load_type_info (klass);
11242 return info->fields [match_index].offset;
11247 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11250 char *ret = mono_string_to_utf8_checked (string, &error);
11251 mono_error_set_pending_exception (&error);
11256 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11258 if (string == NULL)
11261 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
11263 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11264 res [mono_string_length (string)] = 0;
11268 #endif /* !HOST_WIN32 */
11271 mono_struct_delete_old (MonoClass *klass, char *ptr)
11273 MonoMarshalType *info;
11276 info = mono_marshal_load_type_info (klass);
11278 for (i = 0; i < info->num_fields; i++) {
11279 MonoMarshalConv conv;
11280 MonoType *ftype = info->fields [i].field->type;
11283 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11286 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11287 klass->unicode, &conv);
11289 cpos = ptr + info->fields [i].offset;
11292 case MONO_MARSHAL_CONV_NONE:
11293 if (MONO_TYPE_ISSTRUCT (ftype)) {
11294 mono_struct_delete_old (ftype->data.klass, cpos);
11298 case MONO_MARSHAL_CONV_STR_LPWSTR:
11299 /* We assume this field points inside a MonoString */
11301 case MONO_MARSHAL_CONV_STR_LPTSTR:
11302 #ifdef TARGET_WIN32
11303 /* We assume this field points inside a MonoString
11307 case MONO_MARSHAL_CONV_STR_LPSTR:
11308 case MONO_MARSHAL_CONV_STR_BSTR:
11309 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11310 case MONO_MARSHAL_CONV_STR_TBSTR:
11311 case MONO_MARSHAL_CONV_STR_UTF8STR:
11312 mono_marshal_free (*(gpointer *)cpos);
11322 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11326 MONO_CHECK_ARG_NULL (src,);
11327 MONO_CHECK_ARG_NULL (type,);
11329 klass = mono_class_from_mono_type (type->type);
11330 if (!mono_class_init (klass)) {
11331 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11335 mono_struct_delete_old (klass, (char *)src);
11339 static inline void *
11340 mono_marshal_alloc_hglobal (size_t size)
11342 return g_try_malloc (size);
11347 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11350 size_t s = (size_t)size;
11353 /* This returns a valid pointer for size 0 on MS.NET */
11356 res = mono_marshal_alloc_hglobal (s);
11359 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11367 static inline gpointer
11368 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11370 return g_try_realloc (ptr, size);
11375 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11378 size_t s = (size_t)size;
11381 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11385 res = mono_marshal_realloc_hglobal (ptr, s);
11388 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11397 mono_marshal_free_hglobal (gpointer ptr)
11405 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11407 mono_marshal_free_hglobal (ptr);
11411 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11413 void *res = mono_marshal_alloc_co_task_mem (size);
11416 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11423 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11425 void *res = mono_marshal_alloc_co_task_mem (size);
11428 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11435 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11437 mono_marshal_free_co_task_mem (ptr);
11442 static inline gpointer
11443 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11445 return g_try_realloc (ptr, (gulong)size);
11450 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11452 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11455 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11462 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11464 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11468 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionTypeHandle type, MonoError *error)
11470 error_init (error);
11471 MonoClass *klass = mono_type_get_class (MONO_HANDLE_GETVAL (type, type));
11472 if (!mono_class_init (klass)) {
11473 mono_error_set_for_class_failure (error, klass);
11477 return mono_ftnptr_to_delegate_handle (klass, ftn, error);
11481 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegateHandle delegate, MonoError *error)
11483 error_init (error);
11484 return mono_delegate_handle_to_ftnptr (delegate, error);
11488 * mono_marshal_is_loading_type_info:
11490 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11494 mono_marshal_is_loading_type_info (MonoClass *klass)
11496 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11498 return g_slist_find (loads_list, klass) != NULL;
11502 * mono_marshal_load_type_info:
11504 * Initialize \c klass::marshal_info using information from metadata. This function can
11505 * recursively call itself, and the caller is responsible to avoid that by calling
11506 * \c mono_marshal_is_loading_type_info beforehand.
11508 * LOCKING: Acquires the loader lock.
11511 mono_marshal_load_type_info (MonoClass* klass)
11514 guint32 native_size = 0, min_align = 1, packing;
11515 MonoMarshalType *info;
11516 MonoClassField* field;
11519 GSList *loads_list;
11521 g_assert (klass != NULL);
11523 info = mono_class_get_marshal_info (klass);
11527 if (!klass->inited)
11528 mono_class_init (klass);
11530 info = mono_class_get_marshal_info (klass);
11535 * This function can recursively call itself, so we keep the list of classes which are
11536 * under initialization in a TLS list.
11538 g_assert (!mono_marshal_is_loading_type_info (klass));
11539 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11540 loads_list = g_slist_prepend (loads_list, klass);
11541 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11544 while ((field = mono_class_get_fields (klass, &iter))) {
11545 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11547 if (mono_field_is_deleted (field))
11552 layout = mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK;
11554 /* The mempool is protected by the loader lock */
11555 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11556 info->num_fields = count;
11558 /* Try to find a size for this type in metadata */
11559 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11561 if (klass->parent) {
11562 int parent_size = mono_class_native_size (klass->parent, NULL);
11564 /* Add parent size to real size */
11565 native_size += parent_size;
11566 info->native_size = parent_size;
11569 packing = klass->packing_size ? klass->packing_size : 8;
11572 while ((field = mono_class_get_fields (klass, &iter))) {
11576 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11579 if (mono_field_is_deleted (field))
11581 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11582 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11583 NULL, NULL, &info->fields [j].mspec);
11585 info->fields [j].field = field;
11587 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11588 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11589 /* This field is a hack inserted by MCS to empty structures */
11594 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11595 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11596 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11597 &align, TRUE, klass->unicode);
11598 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11599 min_align = MAX (align, min_align);
11600 info->fields [j].offset = info->native_size;
11601 info->fields [j].offset += align - 1;
11602 info->fields [j].offset &= ~(align - 1);
11603 info->native_size = info->fields [j].offset + size;
11605 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11606 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11607 &align, TRUE, klass->unicode);
11608 min_align = MAX (align, min_align);
11609 info->fields [j].offset = field->offset - sizeof (MonoObject);
11610 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11616 if (klass->byval_arg.type == MONO_TYPE_PTR)
11617 info->native_size = sizeof (gpointer);
11619 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11620 info->native_size = MAX (native_size, info->native_size);
11622 * If the provided Size is equal or larger than the calculated size, and there
11623 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11625 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11626 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11629 min_align = MIN (min_align, packing);
11633 if (info->native_size & (min_align - 1)) {
11634 info->native_size += min_align - 1;
11635 info->native_size &= ~(min_align - 1);
11638 info->min_align = min_align;
11640 /* Update the class's blittable info, if the layouts don't match */
11641 if (info->native_size != mono_class_value_size (klass, NULL))
11642 klass->blittable = FALSE;
11644 /* If this is an array type, ensure that we have element info */
11645 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11646 mono_marshal_load_type_info (klass->element_class);
11649 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11650 loads_list = g_slist_remove (loads_list, klass);
11651 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11653 mono_marshal_lock ();
11654 MonoMarshalType *info2 = mono_class_get_marshal_info (klass);
11656 /*We do double-checking locking on marshal_info */
11657 mono_memory_barrier ();
11658 mono_class_set_marshal_info (klass, info);
11659 ++class_marshal_info_count;
11662 mono_marshal_unlock ();
11668 * mono_class_native_size:
11669 * \param klass a class
11670 * \returns the native size of an object instance (when marshaled
11671 * to unmanaged code)
11674 mono_class_native_size (MonoClass *klass, guint32 *align)
11676 MonoMarshalType *info = mono_class_get_marshal_info (klass);
11678 if (mono_marshal_is_loading_type_info (klass)) {
11683 mono_marshal_load_type_info (klass);
11685 info = mono_class_get_marshal_info (klass);
11689 *align = info->min_align;
11691 return info->native_size;
11695 * mono_type_native_stack_size:
11696 * @t: the type to return the size it uses on the stack
11698 * Returns: the number of bytes required to hold an instance of this
11699 * type on the native stack
11702 mono_type_native_stack_size (MonoType *t, guint32 *align)
11706 g_assert (t != NULL);
11712 *align = sizeof (gpointer);
11713 return sizeof (gpointer);
11717 case MONO_TYPE_BOOLEAN:
11718 case MONO_TYPE_CHAR:
11729 case MONO_TYPE_STRING:
11730 case MONO_TYPE_OBJECT:
11731 case MONO_TYPE_CLASS:
11732 case MONO_TYPE_SZARRAY:
11733 case MONO_TYPE_PTR:
11734 case MONO_TYPE_FNPTR:
11735 case MONO_TYPE_ARRAY:
11736 *align = sizeof (gpointer);
11737 return sizeof (gpointer);
11742 *align = MONO_ABI_ALIGNOF (double);
11746 *align = MONO_ABI_ALIGNOF (gint64);
11748 case MONO_TYPE_GENERICINST:
11749 if (!mono_type_generic_inst_is_valuetype (t)) {
11750 *align = sizeof (gpointer);
11751 return sizeof (gpointer);
11754 case MONO_TYPE_TYPEDBYREF:
11755 case MONO_TYPE_VALUETYPE: {
11757 MonoClass *klass = mono_class_from_mono_type (t);
11759 if (klass->enumtype)
11760 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11762 size = mono_class_native_size (klass, align);
11763 *align = *align + 3;
11773 g_error ("type 0x%02x unknown", t->type);
11779 * mono_marshal_type_size:
11782 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11783 gboolean as_field, gboolean unicode)
11785 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11788 switch (native_type) {
11789 case MONO_NATIVE_BOOLEAN:
11792 case MONO_NATIVE_I1:
11793 case MONO_NATIVE_U1:
11796 case MONO_NATIVE_I2:
11797 case MONO_NATIVE_U2:
11798 case MONO_NATIVE_VARIANTBOOL:
11801 case MONO_NATIVE_I4:
11802 case MONO_NATIVE_U4:
11803 case MONO_NATIVE_ERROR:
11806 case MONO_NATIVE_I8:
11807 case MONO_NATIVE_U8:
11808 *align = MONO_ABI_ALIGNOF (gint64);
11810 case MONO_NATIVE_R4:
11813 case MONO_NATIVE_R8:
11814 *align = MONO_ABI_ALIGNOF (double);
11816 case MONO_NATIVE_INT:
11817 case MONO_NATIVE_UINT:
11818 case MONO_NATIVE_LPSTR:
11819 case MONO_NATIVE_LPWSTR:
11820 case MONO_NATIVE_LPTSTR:
11821 case MONO_NATIVE_BSTR:
11822 case MONO_NATIVE_ANSIBSTR:
11823 case MONO_NATIVE_TBSTR:
11824 case MONO_NATIVE_UTF8STR:
11825 case MONO_NATIVE_LPARRAY:
11826 case MONO_NATIVE_SAFEARRAY:
11827 case MONO_NATIVE_IUNKNOWN:
11828 case MONO_NATIVE_IDISPATCH:
11829 case MONO_NATIVE_INTERFACE:
11830 case MONO_NATIVE_ASANY:
11831 case MONO_NATIVE_FUNC:
11832 case MONO_NATIVE_LPSTRUCT:
11833 *align = MONO_ABI_ALIGNOF (gpointer);
11834 return sizeof (gpointer);
11835 case MONO_NATIVE_STRUCT:
11836 klass = mono_class_from_mono_type (type);
11837 if (klass == mono_defaults.object_class &&
11838 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11842 return mono_class_native_size (klass, align);
11843 case MONO_NATIVE_BYVALTSTR: {
11844 int esize = unicode ? 2: 1;
11847 return mspec->data.array_data.num_elem * esize;
11849 case MONO_NATIVE_BYVALARRAY: {
11850 // FIXME: Have to consider ArraySubType
11852 klass = mono_class_from_mono_type (type);
11853 if (klass->element_class == mono_defaults.char_class) {
11854 esize = unicode ? 2 : 1;
11857 esize = mono_class_native_size (klass->element_class, align);
11860 return mspec->data.array_data.num_elem * esize;
11862 case MONO_NATIVE_CUSTOM:
11863 *align = sizeof (gpointer);
11864 return sizeof (gpointer);
11866 case MONO_NATIVE_CURRENCY:
11867 case MONO_NATIVE_VBBYREFSTR:
11869 g_error ("native type %02x not implemented", native_type);
11872 g_assert_not_reached ();
11877 * mono_marshal_asany:
11878 * This is a JIT icall, it sets the pending exception and returns NULL on error.
11881 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11890 t = &o->vtable->klass->byval_arg;
11894 case MONO_TYPE_PTR:
11897 case MONO_TYPE_BOOLEAN:
11900 case MONO_TYPE_CHAR:
11905 return mono_object_unbox (o);
11907 case MONO_TYPE_STRING:
11908 switch (string_encoding) {
11909 case MONO_NATIVE_LPWSTR:
11910 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11911 case MONO_NATIVE_LPSTR:
11912 case MONO_NATIVE_UTF8STR:
11913 // Same code path, because in Mono, we treated strings as Utf8
11914 return mono_string_to_utf8str ((MonoString*)o);
11916 g_warning ("marshaling conversion %d not implemented", string_encoding);
11917 g_assert_not_reached ();
11920 case MONO_TYPE_CLASS:
11921 case MONO_TYPE_VALUETYPE: {
11922 MonoMethod *method;
11925 MonoBoolean delete_old = FALSE;
11927 klass = t->data.klass;
11929 if (mono_class_is_auto_layout (klass))
11932 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11933 return mono_object_unbox (o);
11935 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11936 if (!mono_error_ok (&error)) {
11937 mono_error_set_pending_exception (&error);
11941 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11942 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11946 pa [2] = &delete_old;
11948 mono_runtime_invoke_checked (method, NULL, pa, &error);
11949 if (!mono_error_ok (&error)) {
11950 mono_error_set_pending_exception (&error);
11960 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11965 * mono_marshal_free_asany:
11966 * This is a JIT icall, it sets the pending exception
11969 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11978 t = &o->vtable->klass->byval_arg;
11980 case MONO_TYPE_STRING:
11981 switch (string_encoding) {
11982 case MONO_NATIVE_LPWSTR:
11983 case MONO_NATIVE_LPSTR:
11984 case MONO_NATIVE_UTF8STR:
11985 mono_marshal_free (ptr);
11988 g_warning ("marshaling conversion %d not implemented", string_encoding);
11989 g_assert_not_reached ();
11992 case MONO_TYPE_CLASS:
11993 case MONO_TYPE_VALUETYPE: {
11994 klass = t->data.klass;
11996 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11999 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
12000 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
12006 mono_runtime_invoke_checked (method, NULL, pa, &error);
12007 if (!mono_error_ok (&error)) {
12008 mono_error_set_pending_exception (&error);
12013 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
12014 mono_struct_delete_old (klass, (char *)ptr);
12017 mono_marshal_free (ptr);
12026 * mono_marshal_get_generic_array_helper:
12028 * Return a wrapper which is used to implement the implicit interfaces on arrays.
12029 * The wrapper routes calls to METHOD, which is one of the InternalArray_ methods in Array.
12032 mono_marshal_get_generic_array_helper (MonoClass *klass, gchar *name, MonoMethod *method)
12034 MonoMethodSignature *sig, *csig;
12035 MonoMethodBuilder *mb;
12040 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
12041 mb->method->slot = -1;
12043 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
12044 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
12046 sig = mono_method_signature (method);
12047 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
12048 csig->generic_param_count = 0;
12050 #ifndef DISABLE_JIT
12051 mono_mb_emit_ldarg (mb, 0);
12052 for (i = 0; i < csig->param_count; i++)
12053 mono_mb_emit_ldarg (mb, i + 1);
12054 mono_mb_emit_managed_call (mb, method, NULL);
12055 mono_mb_emit_byte (mb, CEE_RET);
12057 /* We can corlib internal methods */
12058 mb->skip_visibility = TRUE;
12060 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
12061 info->d.generic_array_helper.method = method;
12062 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
12070 * The mono_win32_compat_* functions are implementations of inline
12071 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
12072 * although not exported by kernel32.
12074 * We map the appropiate kernel32 entries to these functions using
12075 * dllmaps declared in the global etc/mono/config.
12079 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
12081 if (!dest || !source)
12084 memcpy (dest, source, length);
12088 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
12090 memset (dest, fill, length);
12094 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
12096 if (!dest || !source)
12099 memmove (dest, source, length);
12103 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
12105 memset (dest, 0, length);
12109 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
12114 for (i = 0; i < len; ++i)
12118 g_assert (i < len);
12121 while (byte && !(byte & 1))
12123 g_assert (byte == 1);
12126 *bitmask = buf [i];
12130 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
12132 MonoMethodBuilder *mb;
12133 MonoMethodSignature *sig, *csig;
12134 MonoExceptionClause *clause;
12139 int i, param_count, sig_size, pos_leave;
12143 // FIXME: we need to store the exception into a MonoHandle
12144 g_assert (!mono_threads_is_coop_enabled ());
12146 klass = method->klass;
12147 image = method->klass->image;
12149 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12151 if ((res = mono_marshal_find_in_cache (cache, method)))
12154 sig = mono_method_signature (method);
12155 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12157 /* add "this" and exception param */
12158 param_count = sig->param_count + sig->hasthis + 1;
12160 /* dup & extend signature */
12161 csig = mono_metadata_signature_alloc (image, param_count);
12162 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
12163 memcpy (csig, sig, sig_size);
12164 csig->param_count = param_count;
12167 csig->call_convention = MONO_CALL_DEFAULT;
12169 if (sig->hasthis) {
12171 csig->params [0] = &klass->byval_arg;
12172 /* move params up by one */
12173 for (i = 0; i < sig->param_count; i++)
12174 csig->params [i + 1] = sig->params [i];
12177 /* setup exception param as byref+[out] */
12178 csig->params [param_count - 1] = mono_metadata_type_dup (image,
12179 &mono_defaults.exception_class->byval_arg);
12180 csig->params [param_count - 1]->byref = 1;
12181 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12183 /* convert struct return to object */
12184 if (MONO_TYPE_ISSTRUCT (sig->ret))
12185 csig->ret = &mono_defaults.object_class->byval_arg;
12187 #ifndef DISABLE_JIT
12188 /* local 0 (temp for exception object) */
12189 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12191 /* local 1 (temp for result) */
12192 if (!MONO_TYPE_IS_VOID (sig->ret))
12193 mono_mb_add_local (mb, sig->ret);
12195 /* clear exception arg */
12196 mono_mb_emit_ldarg (mb, param_count - 1);
12197 mono_mb_emit_byte (mb, CEE_LDNULL);
12198 mono_mb_emit_byte (mb, CEE_STIND_REF);
12201 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12202 clause->try_offset = mono_mb_get_label (mb);
12204 /* push method's args */
12205 for (i = 0; i < param_count - 1; i++) {
12209 mono_mb_emit_ldarg (mb, i);
12211 /* get the byval type of the param */
12212 klass = mono_class_from_mono_type (csig->params [i]);
12213 type = &klass->byval_arg;
12215 /* unbox struct args */
12216 if (MONO_TYPE_ISSTRUCT (type)) {
12217 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12219 /* byref args & and the "this" arg must remain a ptr.
12220 Otherwise make a copy of the value type */
12221 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12222 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12224 csig->params [i] = &mono_defaults.object_class->byval_arg;
12229 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12230 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12232 mono_mb_emit_op (mb, CEE_CALL, method);
12234 /* save result at local 1 */
12235 if (!MONO_TYPE_IS_VOID (sig->ret))
12236 mono_mb_emit_stloc (mb, 1);
12238 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12241 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12242 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12243 clause->data.catch_class = mono_defaults.object_class;
12245 clause->handler_offset = mono_mb_get_label (mb);
12247 /* store exception at local 0 */
12248 mono_mb_emit_stloc (mb, 0);
12249 mono_mb_emit_ldarg (mb, param_count - 1);
12250 mono_mb_emit_ldloc (mb, 0);
12251 mono_mb_emit_byte (mb, CEE_STIND_REF);
12252 mono_mb_emit_branch (mb, CEE_LEAVE);
12254 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12256 mono_mb_set_clauses (mb, 1, clause);
12258 mono_mb_patch_branch (mb, pos_leave);
12261 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12262 mono_mb_emit_ldloc (mb, 1);
12264 /* box the return value */
12265 if (MONO_TYPE_ISSTRUCT (sig->ret))
12266 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12269 mono_mb_emit_byte (mb, CEE_RET);
12272 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12279 * mono_marshal_free_dynamic_wrappers:
12281 * Free wrappers of the dynamic method METHOD.
12284 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12286 MonoImage *image = method->klass->image;
12288 g_assert (method_is_dynamic (method));
12290 /* This could be called during shutdown */
12291 if (marshal_mutex_initialized)
12292 mono_marshal_lock ();
12294 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12295 * they could be shared with other methods ?
12297 if (image->wrapper_caches.runtime_invoke_direct_cache)
12298 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
12299 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12300 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12301 // FIXME: Need to clear the caches in other images as well
12302 if (image->delegate_bound_static_invoke_cache)
12303 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12305 if (marshal_mutex_initialized)
12306 mono_marshal_unlock ();
12310 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12312 g_assert (ftnptr_eh_callback);
12313 ftnptr_eh_callback (gchandle);
12317 ftnptr_eh_callback_default (guint32 gchandle)
12319 MonoException *exc;
12320 gpointer stackdata;
12322 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12324 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12326 mono_gchandle_free (gchandle);
12328 mono_raise_exception (exc);
12332 * mono_install_ftnptr_eh_callback:
12334 * Install a callback that should be called when there is a managed exception
12335 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12336 * managed exception to a native exception, to properly unwind the native
12337 * stack; this native exception will then be converted back to a managed
12338 * exception in their managed-to-native wrapper.
12341 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12343 ftnptr_eh_callback = callback;
12346 static MonoThreadInfo*
12347 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12349 MonoThreadInfo *info = mono_thread_info_current ();
12351 mono_stack_mark_init (info, stackmark);
12352 error_init (error);
12357 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12359 mono_stack_mark_pop (info, stackmark);
12360 if (G_UNLIKELY (!is_ok (error)))
12361 mono_error_set_pending_exception (error);
12364 static MonoObjectHandle
12365 mono_icall_handle_new_full (gpointer rawobj, MonoBoolean interior)
12367 #ifdef MONO_HANDLE_TRACK_OWNER
12368 return mono_handle_new_full (rawobj, interior, "<marshal args>");
12370 return mono_handle_new_full (rawobj, interior);