3 * Routines for marshaling complex types in P/Invoke methods.
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
10 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
12 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
23 #include "metadata/marshal.h"
24 #include "metadata/marshal-internals.h"
25 #include "metadata/method-builder.h"
26 #include "metadata/tabledefs.h"
27 #include "metadata/exception.h"
28 #include "metadata/appdomain.h"
29 #include "mono/metadata/abi-details.h"
30 #include "mono/metadata/debug-helpers.h"
31 #include "mono/metadata/threads.h"
32 #include "mono/metadata/monitor.h"
33 #include "mono/metadata/class-internals.h"
34 #include "mono/metadata/metadata-internals.h"
35 #include "mono/metadata/domain-internals.h"
36 #include "mono/metadata/gc-internals.h"
37 #include "mono/metadata/threads-types.h"
38 #include "mono/metadata/string-icalls.h"
39 #include "mono/metadata/attrdefs.h"
40 #include "mono/metadata/cominterop.h"
41 #include "mono/metadata/remoting.h"
42 #include "mono/metadata/reflection-internals.h"
43 #include "mono/metadata/threadpool.h"
44 #include "mono/metadata/handle.h"
45 #include "mono/utils/mono-counters.h"
46 #include "mono/utils/mono-tls.h"
47 #include "mono/utils/mono-memory-model.h"
48 #include "mono/utils/atomic.h"
49 #include <mono/utils/mono-threads.h>
50 #include <mono/utils/mono-threads-coop.h>
51 #include <mono/utils/mono-error-internals.h>
56 /* #define DEBUG_RUNTIME_CODE */
58 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
62 #include "mono/cil/opcode.def"
68 * This mutex protects the various marshalling related caches in MonoImage
69 * and a few other data structures static to this file.
71 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
72 * runtime locking latice. Which means it can take simple locks suck as the image lock.
74 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
75 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
76 static mono_mutex_t marshal_mutex;
77 static gboolean marshal_mutex_initialized;
79 static MonoNativeTlsKey last_error_tls_id;
81 static MonoNativeTlsKey load_type_info_tls_id;
83 static gboolean use_aot_wrappers;
85 static int class_marshal_info_count;
87 static void ftnptr_eh_callback_default (guint32 gchandle);
89 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
92 delegate_hash_table_add (MonoDelegate *d);
95 delegate_hash_table_remove (MonoDelegate *d);
98 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
101 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, int offset_of_first_child_field, MonoMarshalNative string_encoding);
104 mono_struct_delete_old (MonoClass *klass, char *ptr);
107 mono_marshal_string_to_utf16 (MonoString *s);
110 mono_marshal_string_to_utf16_copy (MonoString *s);
114 mono_string_to_utf8str (MonoString *string_obj);
117 static MonoStringBuilder *
118 mono_string_utf8_to_builder2 (char *text);
120 static MonoStringBuilder *
121 mono_string_utf16_to_builder2 (gunichar2 *text);
124 mono_string_new_len_wrapper (const char *text, guint length);
127 mono_string_from_byvalstr (const char *data, int len);
130 mono_string_from_byvalwstr (gunichar2 *data, int len);
133 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
136 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
139 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
142 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
144 static MonoAsyncResult *
145 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
148 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
151 mono_marshal_set_last_error_windows (int error);
154 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
156 static void init_safe_handle (void);
159 ves_icall_marshal_alloc (gsize size);
162 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
165 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
168 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
171 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
174 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
177 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
180 mono_delegate_to_ftnptr (MonoDelegate *delegate);
183 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
186 mono_array_to_savearray (MonoArray *array);
189 mono_array_to_lparray (MonoArray *array);
192 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
195 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
198 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
201 mono_array_to_savearray (MonoArray *array);
204 mono_array_to_lparray (MonoArray *array);
207 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
210 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
212 static MonoThreadInfo*
213 mono_icall_start (HandleStackMark *stackmark, MonoError *error);
216 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error);
218 /* Lazy class loading functions */
219 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, "System.Text", "StringBuilder");
220 static GENERATE_GET_CLASS_WITH_CACHE (date_time, "System", "DateTime");
221 static GENERATE_GET_CLASS_WITH_CACHE (fixed_buffer_attribute, "System.Runtime.CompilerServices", "FixedBufferAttribute");
222 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
223 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, "System.Runtime.InteropServices", "ICustomMarshaler");
225 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
226 static MonoMethod *sh_dangerous_add_ref;
227 static MonoMethod *sh_dangerous_release;
232 sh_dangerous_add_ref = mono_class_get_method_from_name (
233 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
234 sh_dangerous_release = mono_class_get_method_from_name (
235 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
239 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
241 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
243 mono_register_jit_icall (func, name, sig, no_wrapper);
247 register_icall_no_wrapper (gpointer func, const char *name, const char *sigstr)
249 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
251 mono_register_jit_icall (func, name, sig, TRUE);
255 mono_signature_no_pinvoke (MonoMethod *method)
257 MonoMethodSignature *sig = mono_method_signature (method);
259 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
260 sig->pinvoke = FALSE;
267 mono_marshal_init_tls (void)
269 mono_native_tls_alloc (&last_error_tls_id, NULL);
270 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
274 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
277 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
278 mono_error_set_pending_exception (&error);
283 ves_icall_mono_string_from_utf16 (gunichar2 *data)
286 MonoString *result = mono_string_from_utf16_checked (data, &error);
287 mono_error_set_pending_exception (&error);
292 ves_icall_mono_string_to_utf8 (MonoString *str)
295 char *result = mono_string_to_utf8_checked (str, &error);
296 mono_error_set_pending_exception (&error);
301 mono_marshal_init (void)
303 static gboolean module_initialized = FALSE;
305 if (!module_initialized) {
306 module_initialized = TRUE;
307 mono_os_mutex_init_recursive (&marshal_mutex);
308 marshal_mutex_initialized = TRUE;
310 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
311 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
312 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
313 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
314 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
315 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
316 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
317 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
318 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
319 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
320 register_icall (mono_string_to_utf8str, "mono_string_to_utf8str", "ptr obj", FALSE);
321 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
322 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
323 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
324 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
325 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
326 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
327 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
328 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
329 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
330 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
331 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
332 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
333 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
334 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
335 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr ptr", FALSE);
336 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
337 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
338 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
339 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
340 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
341 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
342 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
343 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
344 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
345 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
346 register_icall (g_free, "g_free", "void ptr", FALSE);
347 register_icall_no_wrapper (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr");
348 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
349 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
350 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
351 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
352 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
353 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
354 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
355 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
356 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
357 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
358 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
359 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
360 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
361 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
362 register_icall (mono_icall_start, "mono_icall_start", "ptr ptr ptr", TRUE);
363 register_icall (mono_icall_end, "mono_icall_end", "void ptr ptr ptr", TRUE);
364 register_icall (mono_handle_new_full, "mono_handle_new_full", "ptr ptr bool", TRUE);
366 mono_cominterop_init ();
367 mono_remoting_init ();
369 mono_counters_register ("MonoClass::class_marshal_info_count count",
370 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_marshal_info_count);
376 mono_marshal_cleanup (void)
378 mono_cominterop_cleanup ();
380 mono_native_tls_free (load_type_info_tls_id);
381 mono_native_tls_free (last_error_tls_id);
382 mono_os_mutex_destroy (&marshal_mutex);
383 marshal_mutex_initialized = FALSE;
387 mono_marshal_lock_internal (void)
389 mono_marshal_lock ();
393 mono_marshal_unlock_internal (void)
395 mono_marshal_unlock ();
398 /* This is a JIT icall, it sets the pending exception and return NULL on error */
400 mono_delegate_to_ftnptr (MonoDelegate *delegate)
403 MonoMethod *method, *wrapper;
405 uint32_t target_handle = 0;
410 if (delegate->delegate_trampoline)
411 return delegate->delegate_trampoline;
413 klass = ((MonoObject *)delegate)->vtable->klass;
414 g_assert (klass->delegate);
416 method = delegate->method;
417 if (delegate->method_is_virtual)
418 method = mono_object_get_virtual_method (delegate->target, method);
420 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
421 const char *exc_class, *exc_arg;
424 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
426 g_assert (exc_class);
427 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
433 if (delegate->target) {
434 /* Produce a location which can be embedded in JITted code */
435 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
438 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle, &error);
442 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
446 // Add the delegate to the delegate hash table
447 delegate_hash_table_add (delegate);
449 /* when the object is collected, collect the dynamic method, too */
450 mono_object_register_finalizer ((MonoObject*)delegate);
452 return delegate->delegate_trampoline;
455 if (target_handle != 0)
456 mono_gchandle_free (target_handle);
457 mono_error_set_pending_exception (&error);
462 * this hash table maps from a delegate trampoline object to a weak reference
463 * of the delegate. As an optimizations with a non-moving GC we store the
464 * object pointer itself, otherwise we use a GC handle.
466 static GHashTable *delegate_hash_table;
469 delegate_hash_table_new (void) {
470 return g_hash_table_new (NULL, NULL);
474 delegate_hash_table_remove (MonoDelegate *d)
476 guint32 gchandle = 0;
478 mono_marshal_lock ();
479 if (delegate_hash_table == NULL)
480 delegate_hash_table = delegate_hash_table_new ();
481 if (mono_gc_is_moving ())
482 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
483 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
484 mono_marshal_unlock ();
485 if (gchandle && mono_gc_is_moving ())
486 mono_gchandle_free (gchandle);
490 delegate_hash_table_add (MonoDelegate *d)
493 guint32 old_gchandle;
495 mono_marshal_lock ();
496 if (delegate_hash_table == NULL)
497 delegate_hash_table = delegate_hash_table_new ();
498 if (mono_gc_is_moving ()) {
499 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
500 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
501 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
503 mono_gchandle_free (old_gchandle);
505 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
507 mono_marshal_unlock ();
511 * mono_marshal_use_aot_wrappers:
513 * Instructs this module to use AOT compatible wrappers.
516 mono_marshal_use_aot_wrappers (gboolean use)
518 use_aot_wrappers = use;
522 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
525 MonoCustomAttrInfo *cinfo;
526 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
528 /* The attribute is only available in Net 2.0 */
529 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
531 * The pinvoke attributes are stored in a real custom attribute so we have to
534 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
535 if (!mono_error_ok (&error)) {
536 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
537 mono_error_cleanup (&error);
539 if (cinfo && !mono_runtime_get_no_exec ()) {
540 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
542 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
544 if (!mono_error_ok (&error)) {
545 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
546 mono_error_cleanup (&error);
550 mono_custom_attrs_free (cinfo);
555 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
557 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
566 mono_marshal_lock ();
567 if (delegate_hash_table == NULL)
568 delegate_hash_table = delegate_hash_table_new ();
570 if (mono_gc_is_moving ()) {
571 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
572 mono_marshal_unlock ();
574 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
578 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
579 mono_marshal_unlock ();
582 /* This is a native function, so construct a delegate for it */
583 MonoMethodSignature *sig;
585 MonoMarshalSpec **mspecs;
586 MonoMethod *invoke = mono_get_delegate_invoke (klass);
587 MonoMethodPInvoke piinfo;
588 MonoObject *this_obj;
591 if (use_aot_wrappers) {
592 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
593 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
594 if (!is_ok (&error)) {
595 mono_error_set_pending_exception (&error);
599 memset (&piinfo, 0, sizeof (piinfo));
600 parse_unmanaged_function_pointer_attr (klass, &piinfo);
602 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
603 mono_method_get_marshal_info (invoke, mspecs);
604 /* Freed below so don't alloc from mempool */
605 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
608 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
611 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
613 mono_metadata_free_marshal_spec (mspecs [i]);
618 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
619 if (!mono_error_ok (&error)) {
620 mono_error_set_pending_exception (&error);
623 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
624 if (mono_error_set_pending_exception (&error))
626 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
627 if (mono_error_set_pending_exception (&error))
631 if (d->object.vtable->domain != mono_domain_get ()) {
632 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
640 mono_delegate_free_ftnptr (MonoDelegate *delegate)
645 delegate_hash_table_remove (delegate);
647 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
649 if (!delegate->target) {
650 /* The wrapper method is shared between delegates -> no need to free it */
659 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
662 method = mono_jit_info_get_method (ji);
663 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
665 /*the target gchandle is the first entry after size and the wrapper itself.*/
666 gchandle = GPOINTER_TO_UINT (method_data [2]);
669 mono_gchandle_free (gchandle);
671 mono_runtime_free_method (mono_object_domain (delegate), method);
675 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
677 mono_string_from_byvalstr (const char *data, int max_len)
680 MonoDomain *domain = mono_domain_get ();
686 while (len < max_len - 1 && data [len])
689 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
690 mono_error_set_pending_exception (&error);
694 /* This is a JIT icall, it sets the pending exception and return NULL on error */
696 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
699 MonoString *res = NULL;
700 MonoDomain *domain = mono_domain_get ();
706 while (data [len]) len++;
708 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
709 if (!mono_error_ok (&error)) {
710 mono_error_set_pending_exception (&error);
717 mono_array_to_savearray (MonoArray *array)
722 g_assert_not_reached ();
727 mono_array_to_lparray (MonoArray *array)
730 gpointer *nativeArray = NULL;
731 int nativeArraySize = 0;
741 klass = array->obj.vtable->klass;
743 switch (klass->element_class->byval_arg.type) {
745 g_assert_not_reached ();
747 case MONO_TYPE_CLASS:
748 nativeArraySize = array->max_length;
749 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
750 for(i = 0; i < nativeArraySize; ++i)
751 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
754 case MONO_TYPE_BOOLEAN:
767 case MONO_TYPE_VALUETYPE:
771 case MONO_TYPE_GENERICINST:
772 case MONO_TYPE_OBJECT:
773 case MONO_TYPE_ARRAY:
774 case MONO_TYPE_SZARRAY:
775 case MONO_TYPE_STRING:
777 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
778 g_assert_not_reached ();
781 return array->vector;
785 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
796 klass = array->obj.vtable->klass;
798 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
799 for(i = 0; i < array->max_length; ++i)
800 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
801 g_free (nativeArray);
807 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
809 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
811 if (elclass == mono_defaults.byte_class) {
812 GError *error = NULL;
816 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
819 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
823 g_error_free (error);
826 g_assert_not_reached ();
830 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
832 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
835 /* This is a JIT icall, it sets the pending exception and returns on error */
837 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
839 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
841 if (elclass == mono_defaults.byte_class) {
843 GError *error = NULL;
845 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
847 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
848 g_error_free (error);
852 memcpy (native_arr, as, MIN (strlen (as), elnum));
855 g_assert_not_reached ();
860 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
862 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
865 static MonoStringBuilder *
866 mono_string_builder_new (int starting_string_length)
868 static MonoClass *string_builder_class;
869 static MonoMethod *sb_ctor;
870 static void *args [1];
873 int initial_len = starting_string_length;
879 MonoMethodDesc *desc;
882 string_builder_class = mono_class_get_string_builder_class ();
883 g_assert (string_builder_class);
884 desc = mono_method_desc_new (":.ctor(int)", FALSE);
885 m = mono_method_desc_search_in_class (desc, string_builder_class);
887 mono_method_desc_free (desc);
888 mono_memory_barrier ();
892 // We make a new array in the _to_builder function, so this
893 // array will always be garbage collected.
894 args [0] = &initial_len;
896 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
897 mono_error_assert_ok (&error);
900 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
901 g_assert (exc == NULL);
902 mono_error_assert_ok (&error);
904 g_assert (sb->chunkChars->max_length >= initial_len);
910 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
912 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
913 gunichar2 *charSrc = (gunichar2 *)text;
914 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
916 sb->chunkLength = string_len;
922 mono_string_utf16_to_builder2 (gunichar2 *text)
928 for (len = 0; text [len] != 0; ++len);
930 MonoStringBuilder *sb = mono_string_builder_new (len);
931 mono_string_utf16_to_builder (sb, text);
937 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
942 GError *error = NULL;
944 gunichar2* ut = g_utf8_to_utf16 (text, strlen (text), NULL, &copied, &error);
945 int capacity = mono_string_builder_capacity (sb);
947 if (copied > capacity)
951 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
952 mono_string_utf16_to_builder_copy (sb, ut, copied);
954 g_error_free (error);
960 mono_string_utf8_to_builder2 (char *text)
965 int len = strlen (text);
966 MonoStringBuilder *sb = mono_string_builder_new (len);
967 mono_string_utf8_to_builder (sb, text);
973 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
979 for (len = 0; text [len] != 0; ++len);
981 if (len > mono_string_builder_capacity (sb))
982 len = mono_string_builder_capacity (sb);
984 mono_string_utf16_to_builder_copy (sb, text, len);
988 * mono_string_builder_to_utf8:
989 * \param sb the string builder
991 * Converts to utf8 the contents of the \c MonoStringBuilder .
993 * \returns a utf8 string with the contents of the \c StringBuilder .
995 * The return value must be released with mono_marshal_free.
997 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1000 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
1003 GError *gerror = NULL;
1008 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
1010 guint str_len = mono_string_builder_string_length (sb);
1012 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
1015 g_error_free (gerror);
1016 mono_marshal_free (str_utf16);
1017 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1020 guint len = mono_string_builder_capacity (sb) + 1;
1021 gchar *res = (gchar *)mono_marshal_alloc (MAX (byte_count+1, len * sizeof (gchar)), &error);
1022 if (!mono_error_ok (&error)) {
1023 mono_marshal_free (str_utf16);
1025 mono_error_set_pending_exception (&error);
1029 memcpy (res, tmp, byte_count);
1030 res[byte_count] = '\0';
1032 mono_marshal_free (str_utf16);
1039 * mono_string_builder_to_utf16:
1040 * \param sb the string builder
1042 * Converts to utf16 the contents of the \c MonoStringBuilder .
1044 * Returns: a utf16 string with the contents of the \c StringBuilder .
1046 * The return value must be released with mono_marshal_free.
1048 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1051 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1058 g_assert (sb->chunkChars);
1060 guint len = mono_string_builder_capacity (sb);
1065 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1066 if (!mono_error_ok (&error)) {
1067 mono_error_set_pending_exception (&error);
1076 MonoStringBuilder* chunk = sb;
1078 if (chunk->chunkLength > 0) {
1079 // Check that we will not overrun our boundaries.
1080 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1082 if (chunk->chunkLength <= len) {
1083 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1085 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1088 len -= chunk->chunkLength;
1090 chunk = chunk->chunkPrevious;
1091 } while (chunk != NULL);
1097 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1099 mono_string_to_utf8str (MonoString *s)
1102 char *result = mono_string_to_utf8_checked (s, &error);
1103 mono_error_set_pending_exception (&error);
1109 mono_string_to_ansibstr (MonoString *string_obj)
1111 g_error ("UnmanagedMarshal.BStr is not implemented.");
1116 * mono_string_to_byvalstr:
1117 * \param dst Where to store the null-terminated utf8 decoded string.
1118 * \param src the \c MonoString to copy.
1119 * \param size the maximum number of bytes to copy.
1121 * Copies the \c MonoString pointed to by \p src as a utf8 string
1122 * into \p dst, it copies at most \p size bytes into the destination.
1125 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1131 g_assert (dst != NULL);
1132 g_assert (size > 0);
1134 memset (dst, 0, size);
1138 s = mono_string_to_utf8_checked (src, &error);
1139 if (mono_error_set_pending_exception (&error))
1141 len = MIN (size, strlen (s));
1144 memcpy (dst, s, len);
1149 * mono_string_to_byvalwstr:
1150 * \param dst Where to store the null-terminated utf16 decoded string.
1151 * \param src the \c MonoString to copy.
1152 * \param size the maximum number of wide characters to copy (each consumes 2 bytes)
1154 * Copies the \c MonoString pointed to by \p src as a utf16 string into
1155 * \p dst, it copies at most \p size bytes into the destination (including
1156 * a terminating 16-bit zero terminator).
1159 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1163 g_assert (dst != NULL);
1164 g_assert (size > 1);
1167 memset (dst, 0, size * 2);
1171 len = MIN (size, (mono_string_length (src)));
1172 memcpy (dst, mono_string_chars (src), len * 2);
1173 if (size <= mono_string_length (src))
1175 *((gunichar2 *) dst + len) = 0;
1178 /* this is an icall, it sets the pending exception and returns NULL on error */
1180 mono_string_new_len_wrapper (const char *text, guint length)
1183 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1184 mono_error_set_pending_exception (&error);
1191 * mono_mb_emit_exception_marshal_directive:
1193 * This function assumes ownership of MSG, which should be malloc-ed.
1196 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1201 s = mono_image_strdup (mb->method->klass->image, msg);
1206 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1209 #endif /* !DISABLE_JIT */
1212 mono_type_to_ldind (MonoType *type)
1218 switch (type->type) {
1220 return CEE_LDIND_I1;
1222 case MONO_TYPE_BOOLEAN:
1223 return CEE_LDIND_U1;
1225 return CEE_LDIND_I2;
1227 case MONO_TYPE_CHAR:
1228 return CEE_LDIND_U2;
1230 return CEE_LDIND_I4;
1232 return CEE_LDIND_U4;
1236 case MONO_TYPE_FNPTR:
1238 case MONO_TYPE_CLASS:
1239 case MONO_TYPE_STRING:
1240 case MONO_TYPE_OBJECT:
1241 case MONO_TYPE_SZARRAY:
1242 case MONO_TYPE_ARRAY:
1243 return CEE_LDIND_REF;
1246 return CEE_LDIND_I8;
1248 return CEE_LDIND_R4;
1250 return CEE_LDIND_R8;
1251 case MONO_TYPE_VALUETYPE:
1252 if (type->data.klass->enumtype) {
1253 type = mono_class_enum_basetype (type->data.klass);
1257 case MONO_TYPE_TYPEDBYREF:
1259 case MONO_TYPE_GENERICINST:
1260 type = &type->data.generic_class->container_class->byval_arg;
1263 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1269 mono_type_to_stind (MonoType *type)
1272 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1276 switch (type->type) {
1279 case MONO_TYPE_BOOLEAN:
1280 return CEE_STIND_I1;
1283 case MONO_TYPE_CHAR:
1284 return CEE_STIND_I2;
1287 return CEE_STIND_I4;
1291 case MONO_TYPE_FNPTR:
1293 case MONO_TYPE_CLASS:
1294 case MONO_TYPE_STRING:
1295 case MONO_TYPE_OBJECT:
1296 case MONO_TYPE_SZARRAY:
1297 case MONO_TYPE_ARRAY:
1298 return CEE_STIND_REF;
1301 return CEE_STIND_I8;
1303 return CEE_STIND_R4;
1305 return CEE_STIND_R8;
1306 case MONO_TYPE_VALUETYPE:
1307 if (type->data.klass->enumtype) {
1308 type = mono_class_enum_basetype (type->data.klass);
1312 case MONO_TYPE_TYPEDBYREF:
1314 case MONO_TYPE_GENERICINST:
1315 type = &type->data.generic_class->container_class->byval_arg;
1318 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1326 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1329 case MONO_MARSHAL_CONV_BOOL_I4:
1330 mono_mb_emit_ldloc (mb, 1);
1331 mono_mb_emit_ldloc (mb, 0);
1332 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1333 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1334 mono_mb_emit_byte (mb, 3);
1335 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1336 mono_mb_emit_byte (mb, CEE_BR_S);
1337 mono_mb_emit_byte (mb, 1);
1338 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1339 mono_mb_emit_byte (mb, CEE_STIND_I1);
1341 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1342 mono_mb_emit_ldloc (mb, 1);
1343 mono_mb_emit_ldloc (mb, 0);
1344 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1345 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1346 mono_mb_emit_byte (mb, 3);
1347 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1348 mono_mb_emit_byte (mb, CEE_BR_S);
1349 mono_mb_emit_byte (mb, 1);
1350 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1351 mono_mb_emit_byte (mb, CEE_STIND_I1);
1353 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1354 MonoClass *eklass = NULL;
1357 if (type->type == MONO_TYPE_SZARRAY) {
1358 eklass = type->data.klass;
1360 g_assert_not_reached ();
1363 esize = mono_class_native_size (eklass, NULL);
1365 /* create a new array */
1366 mono_mb_emit_ldloc (mb, 1);
1367 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1368 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1369 mono_mb_emit_byte (mb, CEE_STIND_REF);
1371 if (eklass->blittable) {
1372 /* copy the elements */
1373 mono_mb_emit_ldloc (mb, 1);
1374 mono_mb_emit_byte (mb, CEE_LDIND_I);
1375 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1376 mono_mb_emit_byte (mb, CEE_ADD);
1377 mono_mb_emit_ldloc (mb, 0);
1378 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1379 mono_mb_emit_byte (mb, CEE_PREFIX1);
1380 mono_mb_emit_byte (mb, CEE_CPBLK);
1383 int array_var, src_var, dst_var, index_var;
1384 guint32 label2, label3;
1386 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1387 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1388 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1391 mono_mb_emit_ldloc (mb, 1);
1392 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1393 mono_mb_emit_stloc (mb, array_var);
1395 /* save the old src pointer */
1396 mono_mb_emit_ldloc (mb, 0);
1397 mono_mb_emit_stloc (mb, src_var);
1398 /* save the old dst pointer */
1399 mono_mb_emit_ldloc (mb, 1);
1400 mono_mb_emit_stloc (mb, dst_var);
1402 /* Emit marshalling loop */
1403 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1404 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1405 mono_mb_emit_stloc (mb, index_var);
1408 label2 = mono_mb_get_label (mb);
1409 mono_mb_emit_ldloc (mb, index_var);
1410 mono_mb_emit_ldloc (mb, array_var);
1411 mono_mb_emit_byte (mb, CEE_LDLEN);
1412 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1414 /* src is already set */
1417 mono_mb_emit_ldloc (mb, array_var);
1418 mono_mb_emit_ldloc (mb, index_var);
1419 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1420 mono_mb_emit_stloc (mb, 1);
1422 /* Do the conversion */
1423 emit_struct_conv (mb, eklass, TRUE);
1426 mono_mb_emit_add_to_local (mb, index_var, 1);
1428 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1430 mono_mb_patch_branch (mb, label3);
1432 /* restore the old src pointer */
1433 mono_mb_emit_ldloc (mb, src_var);
1434 mono_mb_emit_stloc (mb, 0);
1435 /* restore the old dst pointer */
1436 mono_mb_emit_ldloc (mb, dst_var);
1437 mono_mb_emit_stloc (mb, 1);
1441 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1442 MonoClass *eclass = mono_defaults.char_class;
1444 /* create a new array */
1445 mono_mb_emit_ldloc (mb, 1);
1446 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1447 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1448 mono_mb_emit_byte (mb, CEE_STIND_REF);
1450 mono_mb_emit_ldloc (mb, 1);
1451 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1452 mono_mb_emit_ldloc (mb, 0);
1453 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1454 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1457 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1458 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1459 mono_mb_emit_ldloc (mb, 1);
1460 mono_mb_emit_ldloc (mb, 0);
1461 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1462 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1464 mono_mb_emit_ldloc (mb, 1);
1465 mono_mb_emit_ldloc (mb, 0);
1466 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1468 mono_mb_emit_byte (mb, CEE_STIND_REF);
1470 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1471 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1472 mono_mb_emit_ldloc (mb, 1);
1473 mono_mb_emit_ldloc (mb, 0);
1474 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1475 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1477 mono_mb_emit_ldloc (mb, 1);
1478 mono_mb_emit_ldloc (mb, 0);
1479 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1481 mono_mb_emit_byte (mb, CEE_STIND_REF);
1483 case MONO_MARSHAL_CONV_STR_LPTSTR:
1484 mono_mb_emit_ldloc (mb, 1);
1485 mono_mb_emit_ldloc (mb, 0);
1486 mono_mb_emit_byte (mb, CEE_LDIND_I);
1488 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1490 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1492 mono_mb_emit_byte (mb, CEE_STIND_REF);
1495 // In Mono historically LPSTR was treated as a UTF8STR
1496 case MONO_MARSHAL_CONV_STR_LPSTR:
1497 case MONO_MARSHAL_CONV_STR_UTF8STR:
1498 mono_mb_emit_ldloc (mb, 1);
1499 mono_mb_emit_ldloc (mb, 0);
1500 mono_mb_emit_byte (mb, CEE_LDIND_I);
1501 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1502 mono_mb_emit_byte (mb, CEE_STIND_REF);
1504 case MONO_MARSHAL_CONV_STR_LPWSTR:
1505 mono_mb_emit_ldloc (mb, 1);
1506 mono_mb_emit_ldloc (mb, 0);
1507 mono_mb_emit_byte (mb, CEE_LDIND_I);
1508 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1509 mono_mb_emit_byte (mb, CEE_STIND_REF);
1511 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1512 MonoClass *klass = mono_class_from_mono_type (type);
1513 int src_var, dst_var;
1515 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1516 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1518 /* *dst = new object */
1519 mono_mb_emit_ldloc (mb, 1);
1520 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1521 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1522 mono_mb_emit_byte (mb, CEE_STIND_REF);
1524 /* save the old src pointer */
1525 mono_mb_emit_ldloc (mb, 0);
1526 mono_mb_emit_stloc (mb, src_var);
1527 /* save the old dst pointer */
1528 mono_mb_emit_ldloc (mb, 1);
1529 mono_mb_emit_stloc (mb, dst_var);
1531 /* dst = pointer to newly created object data */
1532 mono_mb_emit_ldloc (mb, 1);
1533 mono_mb_emit_byte (mb, CEE_LDIND_I);
1534 mono_mb_emit_icon (mb, sizeof (MonoObject));
1535 mono_mb_emit_byte (mb, CEE_ADD);
1536 mono_mb_emit_stloc (mb, 1);
1538 emit_struct_conv (mb, klass, TRUE);
1540 /* restore the old src pointer */
1541 mono_mb_emit_ldloc (mb, src_var);
1542 mono_mb_emit_stloc (mb, 0);
1543 /* restore the old dst pointer */
1544 mono_mb_emit_ldloc (mb, dst_var);
1545 mono_mb_emit_stloc (mb, 1);
1548 case MONO_MARSHAL_CONV_DEL_FTN: {
1549 MonoClass *klass = mono_class_from_mono_type (type);
1551 mono_mb_emit_ldloc (mb, 1);
1552 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1553 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1554 mono_mb_emit_ldloc (mb, 0);
1555 mono_mb_emit_byte (mb, CEE_LDIND_I);
1556 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1557 mono_mb_emit_byte (mb, CEE_STIND_REF);
1560 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1561 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1565 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1566 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1567 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1568 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1570 #endif /* DISABLE_COM */
1572 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1574 * Passing SafeHandles as ref does not allow the unmanaged code
1575 * to change the SafeHandle value. If the value is changed,
1576 * we should issue a diagnostic exception (NotSupportedException)
1577 * that informs the user that changes to handles in unmanaged code
1580 * Since we currently have no access to the original
1581 * SafeHandle that was used during the marshalling,
1582 * for now we just ignore this, and ignore/discard any
1583 * changes that might have happened to the handle.
1588 case MONO_MARSHAL_CONV_HANDLEREF: {
1590 * Passing HandleRefs in a struct that is ref()ed does not
1591 * copy the values back to the HandleRef
1596 case MONO_MARSHAL_CONV_STR_BSTR:
1597 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1598 case MONO_MARSHAL_CONV_STR_TBSTR:
1599 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1601 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1603 mono_mb_emit_exception_marshal_directive (mb, msg);
1610 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1613 if (!ind_store_type)
1614 ind_store_type = &dummy;
1615 *ind_store_type = CEE_STIND_I;
1617 case MONO_MARSHAL_CONV_STR_LPWSTR:
1618 return mono_marshal_string_to_utf16;
1619 case MONO_MARSHAL_CONV_LPWSTR_STR:
1620 *ind_store_type = CEE_STIND_REF;
1621 return ves_icall_mono_string_from_utf16;
1622 case MONO_MARSHAL_CONV_LPTSTR_STR:
1623 *ind_store_type = CEE_STIND_REF;
1624 return mono_string_new_wrapper;
1625 case MONO_MARSHAL_CONV_UTF8STR_STR:
1626 case MONO_MARSHAL_CONV_LPSTR_STR:
1627 *ind_store_type = CEE_STIND_REF;
1628 return mono_string_new_wrapper;
1629 case MONO_MARSHAL_CONV_STR_LPTSTR:
1631 return mono_marshal_string_to_utf16;
1633 return mono_string_to_utf8str;
1635 // In Mono historically LPSTR was treated as a UTF8STR
1636 case MONO_MARSHAL_CONV_STR_UTF8STR:
1637 case MONO_MARSHAL_CONV_STR_LPSTR:
1638 return mono_string_to_utf8str;
1639 case MONO_MARSHAL_CONV_STR_BSTR:
1640 return mono_string_to_bstr;
1641 case MONO_MARSHAL_CONV_BSTR_STR:
1642 *ind_store_type = CEE_STIND_REF;
1643 return mono_string_from_bstr_icall;
1644 case MONO_MARSHAL_CONV_STR_TBSTR:
1645 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1646 return mono_string_to_ansibstr;
1647 case MONO_MARSHAL_CONV_SB_UTF8STR:
1648 case MONO_MARSHAL_CONV_SB_LPSTR:
1649 return mono_string_builder_to_utf8;
1650 case MONO_MARSHAL_CONV_SB_LPTSTR:
1652 return mono_string_builder_to_utf16;
1654 return mono_string_builder_to_utf8;
1656 case MONO_MARSHAL_CONV_SB_LPWSTR:
1657 return mono_string_builder_to_utf16;
1658 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1659 return mono_array_to_savearray;
1660 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1661 return mono_array_to_lparray;
1662 case MONO_MARSHAL_FREE_LPARRAY:
1663 return mono_free_lparray;
1664 case MONO_MARSHAL_CONV_DEL_FTN:
1665 return mono_delegate_to_ftnptr;
1666 case MONO_MARSHAL_CONV_FTN_DEL:
1667 *ind_store_type = CEE_STIND_REF;
1668 return mono_ftnptr_to_delegate;
1669 case MONO_MARSHAL_CONV_UTF8STR_SB:
1670 case MONO_MARSHAL_CONV_LPSTR_SB:
1671 *ind_store_type = CEE_STIND_REF;
1672 return mono_string_utf8_to_builder;
1673 case MONO_MARSHAL_CONV_LPTSTR_SB:
1674 *ind_store_type = CEE_STIND_REF;
1676 return mono_string_utf16_to_builder;
1678 return mono_string_utf8_to_builder;
1680 case MONO_MARSHAL_CONV_LPWSTR_SB:
1681 *ind_store_type = CEE_STIND_REF;
1682 return mono_string_utf16_to_builder;
1683 case MONO_MARSHAL_FREE_ARRAY:
1684 return mono_marshal_free_array;
1685 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1686 return mono_string_to_byvalstr;
1687 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1688 return mono_string_to_byvalwstr;
1690 g_assert_not_reached ();
1697 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1703 case MONO_MARSHAL_CONV_BOOL_I4:
1704 mono_mb_emit_ldloc (mb, 1);
1705 mono_mb_emit_ldloc (mb, 0);
1706 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1707 mono_mb_emit_byte (mb, CEE_STIND_I4);
1709 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1710 mono_mb_emit_ldloc (mb, 1);
1711 mono_mb_emit_ldloc (mb, 0);
1712 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1713 mono_mb_emit_byte (mb, CEE_NEG);
1714 mono_mb_emit_byte (mb, CEE_STIND_I2);
1716 // In Mono historically LPSTR was treated as a UTF8STR
1717 case MONO_MARSHAL_CONV_STR_UTF8STR:
1718 case MONO_MARSHAL_CONV_STR_LPWSTR:
1719 case MONO_MARSHAL_CONV_STR_LPSTR:
1720 case MONO_MARSHAL_CONV_STR_LPTSTR:
1721 case MONO_MARSHAL_CONV_STR_BSTR:
1722 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1723 case MONO_MARSHAL_CONV_STR_TBSTR: {
1726 /* free space if free == true */
1727 mono_mb_emit_ldloc (mb, 2);
1728 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1729 mono_mb_emit_ldloc (mb, 1);
1730 mono_mb_emit_byte (mb, CEE_LDIND_I);
1731 mono_mb_emit_icall (mb, g_free);
1732 mono_mb_patch_short_branch (mb, pos);
1734 mono_mb_emit_ldloc (mb, 1);
1735 mono_mb_emit_ldloc (mb, 0);
1736 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1737 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1738 mono_mb_emit_byte (mb, stind_op);
1741 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1742 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1743 case MONO_MARSHAL_CONV_DEL_FTN:
1744 mono_mb_emit_ldloc (mb, 1);
1745 mono_mb_emit_ldloc (mb, 0);
1746 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1747 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1748 mono_mb_emit_byte (mb, stind_op);
1750 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1751 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1754 mono_mb_emit_ldloc (mb, 1); /* dst */
1755 mono_mb_emit_ldloc (mb, 0);
1756 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1757 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1758 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1761 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1762 MonoClass *eklass = NULL;
1765 if (type->type == MONO_TYPE_SZARRAY) {
1766 eklass = type->data.klass;
1768 g_assert_not_reached ();
1771 if (eklass->valuetype)
1772 esize = mono_class_native_size (eklass, NULL);
1774 esize = sizeof (gpointer);
1776 mono_mb_emit_ldloc (mb, 0);
1777 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1778 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1780 if (eklass->blittable) {
1781 mono_mb_emit_ldloc (mb, 1);
1782 mono_mb_emit_ldloc (mb, 0);
1783 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1784 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1785 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1786 mono_mb_emit_byte (mb, CEE_PREFIX1);
1787 mono_mb_emit_byte (mb, CEE_CPBLK);
1789 int array_var, src_var, dst_var, index_var;
1790 guint32 label2, label3;
1792 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1793 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1794 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1797 mono_mb_emit_ldloc (mb, 0);
1798 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1799 mono_mb_emit_stloc (mb, array_var);
1801 /* save the old src pointer */
1802 mono_mb_emit_ldloc (mb, 0);
1803 mono_mb_emit_stloc (mb, src_var);
1804 /* save the old dst pointer */
1805 mono_mb_emit_ldloc (mb, 1);
1806 mono_mb_emit_stloc (mb, dst_var);
1808 /* Emit marshalling loop */
1809 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1810 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1811 mono_mb_emit_stloc (mb, index_var);
1814 label2 = mono_mb_get_label (mb);
1815 mono_mb_emit_ldloc (mb, index_var);
1816 mono_mb_emit_ldloc (mb, array_var);
1817 mono_mb_emit_byte (mb, CEE_LDLEN);
1818 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1821 mono_mb_emit_ldloc (mb, array_var);
1822 mono_mb_emit_ldloc (mb, index_var);
1823 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1824 mono_mb_emit_stloc (mb, 0);
1826 /* dst is already set */
1828 /* Do the conversion */
1829 emit_struct_conv (mb, eklass, FALSE);
1832 mono_mb_emit_add_to_local (mb, index_var, 1);
1834 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1836 mono_mb_patch_branch (mb, label3);
1838 /* restore the old src pointer */
1839 mono_mb_emit_ldloc (mb, src_var);
1840 mono_mb_emit_stloc (mb, 0);
1841 /* restore the old dst pointer */
1842 mono_mb_emit_ldloc (mb, dst_var);
1843 mono_mb_emit_stloc (mb, 1);
1846 mono_mb_patch_branch (mb, pos);
1849 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1850 mono_mb_emit_ldloc (mb, 0);
1851 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1852 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1854 mono_mb_emit_ldloc (mb, 1);
1855 mono_mb_emit_ldloc (mb, 0);
1856 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1857 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1858 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1859 mono_mb_patch_short_branch (mb, pos);
1862 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1863 int src_var, dst_var;
1865 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1866 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1868 mono_mb_emit_ldloc (mb, 0);
1869 mono_mb_emit_byte (mb, CEE_LDIND_I);
1870 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1872 /* save the old src pointer */
1873 mono_mb_emit_ldloc (mb, 0);
1874 mono_mb_emit_stloc (mb, src_var);
1875 /* save the old dst pointer */
1876 mono_mb_emit_ldloc (mb, 1);
1877 mono_mb_emit_stloc (mb, dst_var);
1879 /* src = pointer to object data */
1880 mono_mb_emit_ldloc (mb, 0);
1881 mono_mb_emit_byte (mb, CEE_LDIND_I);
1882 mono_mb_emit_icon (mb, sizeof (MonoObject));
1883 mono_mb_emit_byte (mb, CEE_ADD);
1884 mono_mb_emit_stloc (mb, 0);
1886 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1888 /* restore the old src pointer */
1889 mono_mb_emit_ldloc (mb, src_var);
1890 mono_mb_emit_stloc (mb, 0);
1891 /* restore the old dst pointer */
1892 mono_mb_emit_ldloc (mb, dst_var);
1893 mono_mb_emit_stloc (mb, 1);
1895 mono_mb_patch_branch (mb, pos);
1900 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1901 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1902 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1903 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1905 #endif /* DISABLE_COM */
1907 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1910 mono_mb_emit_ldloc (mb, 0);
1911 mono_mb_emit_byte (mb, CEE_LDIND_I);
1912 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1913 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1914 mono_mb_patch_branch (mb, pos);
1916 /* Pull the handle field from SafeHandle */
1917 mono_mb_emit_ldloc (mb, 1);
1918 mono_mb_emit_ldloc (mb, 0);
1919 mono_mb_emit_byte (mb, CEE_LDIND_I);
1920 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1921 mono_mb_emit_byte (mb, CEE_LDIND_I);
1922 mono_mb_emit_byte (mb, CEE_STIND_I);
1926 case MONO_MARSHAL_CONV_HANDLEREF: {
1927 mono_mb_emit_ldloc (mb, 1);
1928 mono_mb_emit_ldloc (mb, 0);
1929 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1930 mono_mb_emit_byte (mb, CEE_ADD);
1931 mono_mb_emit_byte (mb, CEE_LDIND_I);
1932 mono_mb_emit_byte (mb, CEE_STIND_I);
1937 g_error ("marshalling conversion %d not implemented", conv);
1943 offset_of_first_nonstatic_field (MonoClass *klass)
1946 int fcount = mono_class_get_field_count (klass);
1947 mono_class_setup_fields (klass);
1948 for (i = 0; i < fcount; i++) {
1949 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
1950 return klass->fields[i].offset - sizeof (MonoObject);
1957 get_fixed_buffer_attr (MonoClassField *field, MonoType **out_etype, int *out_len)
1960 MonoCustomAttrInfo *cinfo;
1961 MonoCustomAttrEntry *attr;
1964 cinfo = mono_custom_attrs_from_field_checked (field->parent, field, &error);
1965 if (!is_ok (&error))
1969 for (aindex = 0; aindex < cinfo->num_attrs; ++aindex) {
1970 MonoClass *ctor_class = cinfo->attrs [aindex].ctor->klass;
1971 if (mono_class_has_parent (ctor_class, mono_class_get_fixed_buffer_attribute_class ())) {
1972 attr = &cinfo->attrs [aindex];
1978 MonoArray *typed_args, *named_args;
1979 CattrNamedArg *arginfo;
1982 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
1983 if (!is_ok (&error))
1985 g_assert (mono_array_length (typed_args) == 2);
1988 o = mono_array_get (typed_args, MonoObject*, 0);
1989 *out_etype = monotype_cast (o)->type;
1990 o = mono_array_get (typed_args, MonoObject*, 1);
1991 g_assert (o->vtable->klass == mono_defaults.int32_class);
1992 *out_len = *(gint32*)mono_object_unbox (o);
1995 if (cinfo && !cinfo->cached)
1996 mono_custom_attrs_free (cinfo);
1997 return attr != NULL;
2001 emit_fixed_buf_conv (MonoMethodBuilder *mb, MonoType *type, MonoType *etype, int len, gboolean to_object, int *out_usize)
2003 MonoClass *klass = mono_class_from_mono_type (type);
2004 MonoClass *eklass = mono_class_from_mono_type (etype);
2007 esize = mono_class_native_size (eklass, NULL);
2009 MonoMarshalNative string_encoding = klass->unicode ? MONO_NATIVE_LPWSTR : MONO_NATIVE_LPSTR;
2010 int usize = mono_class_value_size (eklass, NULL);
2011 int msize = mono_class_value_size (eklass, NULL);
2013 //printf ("FIXED: %s %d %d\n", mono_type_full_name (type), eklass->blittable, string_encoding);
2015 if (eklass->blittable) {
2016 /* copy the elements */
2017 mono_mb_emit_ldloc (mb, 1);
2018 mono_mb_emit_ldloc (mb, 0);
2019 mono_mb_emit_icon (mb, len * esize);
2020 mono_mb_emit_byte (mb, CEE_PREFIX1);
2021 mono_mb_emit_byte (mb, CEE_CPBLK);
2024 guint32 label2, label3;
2026 /* Emit marshalling loop */
2027 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2028 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2029 mono_mb_emit_stloc (mb, index_var);
2032 label2 = mono_mb_get_label (mb);
2033 mono_mb_emit_ldloc (mb, index_var);
2034 mono_mb_emit_icon (mb, len);
2035 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2037 /* src/dst is already set */
2039 /* Do the conversion */
2040 MonoTypeEnum t = etype->type;
2046 case MONO_TYPE_BOOLEAN:
2049 case MONO_TYPE_CHAR:
2055 mono_mb_emit_ldloc (mb, 1);
2056 mono_mb_emit_ldloc (mb, 0);
2057 if (t == MONO_TYPE_CHAR && string_encoding != MONO_NATIVE_LPWSTR) {
2059 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2060 mono_mb_emit_byte (mb, CEE_STIND_I2);
2062 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2063 mono_mb_emit_byte (mb, CEE_STIND_I1);
2067 mono_mb_emit_byte (mb, mono_type_to_ldind (etype));
2068 mono_mb_emit_byte (mb, mono_type_to_stind (etype));
2072 g_assert_not_reached ();
2077 mono_mb_emit_add_to_local (mb, 0, usize);
2078 mono_mb_emit_add_to_local (mb, 1, msize);
2080 mono_mb_emit_add_to_local (mb, 0, msize);
2081 mono_mb_emit_add_to_local (mb, 1, usize);
2085 mono_mb_emit_add_to_local (mb, index_var, 1);
2087 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2089 mono_mb_patch_branch (mb, label3);
2092 *out_usize = usize * len;
2096 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
2097 int offset_of_first_child_field, MonoMarshalNative string_encoding)
2099 MonoMarshalType *info;
2103 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
2105 info = mono_marshal_load_type_info (klass);
2107 if (info->native_size == 0)
2110 if (klass->blittable) {
2111 int usize = mono_class_value_size (klass, NULL);
2112 g_assert (usize == info->native_size);
2113 mono_mb_emit_ldloc (mb, 1);
2114 mono_mb_emit_ldloc (mb, 0);
2115 mono_mb_emit_icon (mb, usize);
2116 mono_mb_emit_byte (mb, CEE_PREFIX1);
2117 mono_mb_emit_byte (mb, CEE_CPBLK);
2120 mono_mb_emit_add_to_local (mb, 0, usize);
2121 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
2123 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
2124 mono_mb_emit_add_to_local (mb, 1, usize);
2129 if (klass != mono_class_try_get_safehandle_class ()) {
2130 if (mono_class_is_auto_layout (klass)) {
2131 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
2132 mono_type_full_name (&klass->byval_arg));
2133 mono_mb_emit_exception_marshal_directive (mb, msg);
2138 for (i = 0; i < info->num_fields; i++) {
2139 MonoMarshalNative ntype;
2140 MonoMarshalConv conv;
2141 MonoType *ftype = info->fields [i].field->type;
2144 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2146 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2149 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2152 msize = klass->instance_size - info->fields [i].field->offset;
2153 usize = info->native_size - info->fields [i].offset;
2155 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2156 usize = info->fields [i + 1].offset - info->fields [i].offset;
2159 if (klass != mono_class_try_get_safehandle_class ()){
2161 * FIXME: Should really check for usize==0 and msize>0, but we apply
2162 * the layout to the managed structure as well.
2165 if (mono_class_is_explicit_layout (klass) && (usize == 0)) {
2166 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2167 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2168 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2169 "reference field at the same offset as another field.",
2170 mono_type_full_name (&klass->byval_arg));
2175 case MONO_MARSHAL_CONV_NONE: {
2178 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2179 g_assert (!ftype->byref);
2180 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2181 mono_mb_emit_ldloc (mb, 1);
2182 mono_mb_emit_ldloc (mb, 0);
2183 mono_mb_emit_byte (mb, CEE_LDIND_I);
2184 mono_mb_emit_byte (mb, CEE_STIND_I);
2195 case MONO_TYPE_BOOLEAN:
2198 case MONO_TYPE_CHAR:
2204 mono_mb_emit_ldloc (mb, 1);
2205 mono_mb_emit_ldloc (mb, 0);
2206 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2208 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2209 mono_mb_emit_byte (mb, CEE_STIND_I2);
2211 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2212 mono_mb_emit_byte (mb, CEE_STIND_I1);
2215 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2216 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2219 case MONO_TYPE_VALUETYPE: {
2220 int src_var, dst_var;
2224 if (ftype->data.klass->enumtype) {
2225 ftype = mono_class_enum_basetype (ftype->data.klass);
2229 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2230 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2232 /* save the old src pointer */
2233 mono_mb_emit_ldloc (mb, 0);
2234 mono_mb_emit_stloc (mb, src_var);
2235 /* save the old dst pointer */
2236 mono_mb_emit_ldloc (mb, 1);
2237 mono_mb_emit_stloc (mb, dst_var);
2239 if (get_fixed_buffer_attr (info->fields [i].field, &etype, &len)) {
2240 emit_fixed_buf_conv (mb, ftype, etype, len, to_object, &usize);
2242 emit_struct_conv (mb, ftype->data.klass, to_object);
2245 /* restore the old src pointer */
2246 mono_mb_emit_ldloc (mb, src_var);
2247 mono_mb_emit_stloc (mb, 0);
2248 /* restore the old dst pointer */
2249 mono_mb_emit_ldloc (mb, dst_var);
2250 mono_mb_emit_stloc (mb, 1);
2253 case MONO_TYPE_OBJECT: {
2256 static MonoMethod *variant_clear = NULL;
2257 static MonoMethod *get_object_for_native_variant = NULL;
2260 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2261 if (!get_object_for_native_variant)
2262 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2263 mono_mb_emit_ldloc (mb, 1);
2264 mono_mb_emit_ldloc (mb, 0);
2265 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2266 mono_mb_emit_byte (mb, CEE_STIND_REF);
2268 mono_mb_emit_ldloc (mb, 0);
2269 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2272 static MonoMethod *get_native_variant_for_object = NULL;
2274 if (!get_native_variant_for_object)
2275 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2277 mono_mb_emit_ldloc (mb, 0);
2278 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2279 mono_mb_emit_ldloc (mb, 1);
2280 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2283 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2284 mono_mb_emit_exception_marshal_directive (mb, msg);
2290 g_warning ("marshaling type %02x not implemented", ftype->type);
2291 g_assert_not_reached ();
2296 int src_var, dst_var;
2298 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2299 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2301 /* save the old src pointer */
2302 mono_mb_emit_ldloc (mb, 0);
2303 mono_mb_emit_stloc (mb, src_var);
2304 /* save the old dst pointer */
2305 mono_mb_emit_ldloc (mb, 1);
2306 mono_mb_emit_stloc (mb, dst_var);
2309 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2311 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2313 /* restore the old src pointer */
2314 mono_mb_emit_ldloc (mb, src_var);
2315 mono_mb_emit_stloc (mb, 0);
2316 /* restore the old dst pointer */
2317 mono_mb_emit_ldloc (mb, dst_var);
2318 mono_mb_emit_stloc (mb, 1);
2323 mono_mb_emit_add_to_local (mb, 0, usize);
2324 mono_mb_emit_add_to_local (mb, 1, msize);
2326 mono_mb_emit_add_to_local (mb, 0, msize);
2327 mono_mb_emit_add_to_local (mb, 1, usize);
2333 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2335 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2339 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2341 /* Call DestroyStructure */
2342 /* FIXME: Only do this if needed */
2343 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2344 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2345 mono_mb_emit_ldloc (mb, struct_var);
2346 mono_mb_emit_icall (mb, mono_struct_delete_old);
2350 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2352 int pos_noabort, pos_noex;
2354 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2355 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2356 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2357 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2359 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2360 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2362 mono_mb_emit_icall (mb, checkpoint_func);
2363 /* Throw the exception returned by the checkpoint function, if any */
2364 mono_mb_emit_byte (mb, CEE_DUP);
2365 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2366 mono_mb_emit_byte (mb, CEE_THROW);
2367 mono_mb_patch_branch (mb, pos_noex);
2368 mono_mb_emit_byte (mb, CEE_POP);
2370 mono_mb_patch_branch (mb, pos_noabort);
2374 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2376 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2379 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2383 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2385 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2389 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2391 emit_thread_interrupt_checkpoint (mb);
2395 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2397 emit_thread_force_interrupt_checkpoint (mb);
2400 #endif /* DISABLE_JIT */
2402 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2403 static MonoAsyncResult *
2404 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2407 MonoMulticastDelegate *mcast_delegate;
2411 g_assert (delegate);
2412 mcast_delegate = (MonoMulticastDelegate *) delegate;
2413 if (mcast_delegate->delegates != NULL) {
2414 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2418 #ifndef DISABLE_REMOTING
2419 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2420 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2421 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2422 /* If the target is a proxy, make a direct call. Is proxy's work
2423 // to make the call asynchronous.
2425 MonoMethodMessage *msg;
2426 MonoDelegate *async_callback;
2428 MonoAsyncResult *ares;
2430 MonoArray *out_args;
2431 method = delegate->method;
2433 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2434 if (mono_error_set_pending_exception (&error))
2436 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2437 if (mono_error_set_pending_exception (&error))
2439 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2440 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2441 MONO_OBJECT_SETREF (msg, async_result, ares);
2442 msg->call_type = CallType_BeginInvoke;
2445 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2446 if (!mono_error_ok (&error)) {
2447 mono_error_set_pending_exception (&error);
2451 mono_set_pending_exception ((MonoException *) exc);
2457 klass = delegate->object.vtable->klass;
2459 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2461 method = mono_get_delegate_invoke (klass);
2464 MonoAsyncResult *result = mono_threadpool_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2465 mono_error_set_pending_exception (&error);
2472 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2474 int i, params_var, tmp_var;
2476 /* allocate local (pointer) *params[] */
2477 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2478 /* allocate local (pointer) tmp */
2479 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2481 /* alloate space on stack to store an array of pointers to the arguments */
2482 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2483 mono_mb_emit_byte (mb, CEE_PREFIX1);
2484 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2485 mono_mb_emit_stloc (mb, params_var);
2488 mono_mb_emit_ldloc (mb, params_var);
2489 mono_mb_emit_stloc (mb, tmp_var);
2491 if (save_this && sig->hasthis) {
2492 mono_mb_emit_ldloc (mb, tmp_var);
2493 mono_mb_emit_ldarg_addr (mb, 0);
2494 mono_mb_emit_byte (mb, CEE_STIND_I);
2495 /* tmp = tmp + sizeof (gpointer) */
2496 if (sig->param_count)
2497 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2501 for (i = 0; i < sig->param_count; i++) {
2502 mono_mb_emit_ldloc (mb, tmp_var);
2503 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2504 mono_mb_emit_byte (mb, CEE_STIND_I);
2505 /* tmp = tmp + sizeof (gpointer) */
2506 if (i < (sig->param_count - 1))
2507 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2513 #endif /* DISABLE_JIT */
2516 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2520 GString *res = g_string_new ("");
2523 g_string_append (res, prefix);
2524 g_string_append_c (res, '_');
2527 mono_type_get_desc (res, sig->ret, FALSE);
2530 g_string_append (res, "__this__");
2532 for (i = 0; i < sig->param_count; ++i) {
2533 g_string_append_c (res, '_');
2534 mono_type_get_desc (res, sig->params [i], FALSE);
2537 g_string_free (res, FALSE);
2542 * mono_marshal_get_string_encoding:
2544 * Return the string encoding which should be used for a given parameter.
2546 static MonoMarshalNative
2547 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2549 /* First try the parameter marshal info */
2551 if (spec->native == MONO_NATIVE_LPARRAY) {
2552 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2553 return spec->data.array_data.elem_type;
2556 return spec->native;
2560 return MONO_NATIVE_LPSTR;
2562 /* Then try the method level marshal info */
2563 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2564 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2565 return MONO_NATIVE_LPSTR;
2566 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2567 return MONO_NATIVE_LPWSTR;
2568 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2570 return MONO_NATIVE_LPWSTR;
2572 return MONO_NATIVE_LPSTR;
2575 return MONO_NATIVE_LPSTR;
2579 static MonoMarshalConv
2580 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2582 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2585 case MONO_NATIVE_LPWSTR:
2586 return MONO_MARSHAL_CONV_STR_LPWSTR;
2587 case MONO_NATIVE_LPSTR:
2588 case MONO_NATIVE_VBBYREFSTR:
2589 return MONO_MARSHAL_CONV_STR_LPSTR;
2590 case MONO_NATIVE_LPTSTR:
2591 return MONO_MARSHAL_CONV_STR_LPTSTR;
2592 case MONO_NATIVE_BSTR:
2593 return MONO_MARSHAL_CONV_STR_BSTR;
2594 case MONO_NATIVE_UTF8STR:
2595 return MONO_MARSHAL_CONV_STR_UTF8STR;
2597 return MONO_MARSHAL_CONV_INVALID;
2601 static MonoMarshalConv
2602 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2604 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2607 case MONO_NATIVE_LPWSTR:
2608 return MONO_MARSHAL_CONV_SB_LPWSTR;
2609 case MONO_NATIVE_LPSTR:
2610 return MONO_MARSHAL_CONV_SB_LPSTR;
2611 case MONO_NATIVE_UTF8STR:
2612 return MONO_MARSHAL_CONV_SB_UTF8STR;
2613 case MONO_NATIVE_LPTSTR:
2614 return MONO_MARSHAL_CONV_SB_LPTSTR;
2616 return MONO_MARSHAL_CONV_INVALID;
2620 static MonoMarshalConv
2621 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2623 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2628 case MONO_NATIVE_LPWSTR:
2630 return MONO_MARSHAL_CONV_LPWSTR_STR;
2631 case MONO_NATIVE_UTF8STR:
2632 return MONO_MARSHAL_CONV_UTF8STR_STR;
2633 case MONO_NATIVE_LPSTR:
2634 case MONO_NATIVE_VBBYREFSTR:
2635 return MONO_MARSHAL_CONV_LPSTR_STR;
2636 case MONO_NATIVE_LPTSTR:
2640 return MONO_MARSHAL_CONV_LPTSTR_STR;
2641 case MONO_NATIVE_BSTR:
2642 return MONO_MARSHAL_CONV_BSTR_STR;
2644 return MONO_MARSHAL_CONV_INVALID;
2648 static MonoMarshalConv
2649 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2651 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2656 case MONO_NATIVE_LPWSTR:
2658 * mono_string_builder_to_utf16 does not allocate a
2659 * new buffer, so no need to free it.
2662 return MONO_MARSHAL_CONV_LPWSTR_SB;
2663 case MONO_NATIVE_UTF8STR:
2664 return MONO_MARSHAL_CONV_UTF8STR_SB;
2665 case MONO_NATIVE_LPSTR:
2666 return MONO_MARSHAL_CONV_LPSTR_SB;
2668 case MONO_NATIVE_LPTSTR:
2669 return MONO_MARSHAL_CONV_LPTSTR_SB;
2672 return MONO_MARSHAL_CONV_INVALID;
2677 * Return whenever a field of a native structure or an array member needs to
2681 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2683 MonoMarshalNative encoding;
2686 case MONO_TYPE_VALUETYPE:
2687 /* FIXME: Optimize this */
2689 case MONO_TYPE_OBJECT:
2690 case MONO_TYPE_CLASS:
2691 if (t->data.klass == mono_defaults.stringbuilder_class) {
2693 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2697 case MONO_TYPE_STRING:
2698 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2699 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2706 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2709 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2712 mono_marshal_lock ();
2715 g_hash_table_new (hash_func, equal_func);
2716 mono_memory_barrier ();
2719 mono_marshal_unlock ();
2725 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2727 return get_cache (var, hash_func, equal_func);
2731 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2735 mono_marshal_lock ();
2736 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2737 mono_marshal_unlock ();
2744 * Create a MonoMethod from MB, set INFO as wrapper info.
2747 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2748 int max_stack, WrapperInfo *info)
2752 res = mono_mb_create_method (mb, sig, max_stack);
2754 mono_marshal_set_wrapper_info (res, info);
2758 /* Create the method from the builder and place it in the cache */
2760 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2761 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2762 int max_stack, WrapperInfo *info, gboolean *out_found)
2769 mono_marshal_lock ();
2770 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2771 mono_marshal_unlock ();
2774 newm = mono_mb_create_method (mb, sig, max_stack);
2775 mono_marshal_lock ();
2776 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2779 g_hash_table_insert (cache, key, res);
2780 mono_marshal_set_wrapper_info (res, info);
2781 mono_marshal_unlock ();
2785 mono_marshal_unlock ();
2786 mono_free_method (newm);
2794 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2795 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2798 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2802 * mono_marshal_method_from_wrapper:
2805 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2808 int wrapper_type = wrapper->wrapper_type;
2811 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2814 info = mono_marshal_get_wrapper_info (wrapper);
2816 switch (wrapper_type) {
2817 case MONO_WRAPPER_REMOTING_INVOKE:
2818 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2819 case MONO_WRAPPER_XDOMAIN_INVOKE:
2820 m = info->d.remoting.method;
2821 if (wrapper->is_inflated) {
2825 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2826 * contains an uninflated method.
2828 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2829 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2833 case MONO_WRAPPER_SYNCHRONIZED:
2834 m = info->d.synchronized.method;
2835 if (wrapper->is_inflated) {
2838 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2839 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2843 case MONO_WRAPPER_UNBOX:
2844 return info->d.unbox.method;
2845 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2846 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2847 return info->d.managed_to_native.method;
2850 case MONO_WRAPPER_RUNTIME_INVOKE:
2851 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2852 return info->d.runtime_invoke.method;
2855 case MONO_WRAPPER_DELEGATE_INVOKE:
2857 return info->d.delegate_invoke.method;
2866 * mono_marshal_get_wrapper_info:
2868 * Retrieve the WrapperInfo structure associated with WRAPPER.
2871 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2873 g_assert (wrapper->wrapper_type);
2875 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2879 * mono_marshal_set_wrapper_info:
2881 * Set the WrapperInfo structure associated with the wrapper
2882 * method METHOD to INFO.
2885 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2889 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2892 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2897 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2901 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2902 info->subtype = subtype;
2907 * get_wrapper_target_class:
2909 * Return the class where a wrapper method should be placed.
2912 get_wrapper_target_class (MonoImage *image)
2919 * - can't put all wrappers into an mscorlib class, because they reference
2920 * metadata (signature) so they should be put into the same image as the
2921 * method they wrap, so they are unloaded together.
2922 * - putting them into a class with a type initalizer could cause the
2923 * initializer to be executed which can be a problem if the wrappers are
2925 * - putting them into an inflated class can cause problems if the the
2926 * class is deleted because it references an image which is unloaded.
2927 * To avoid these problems, we put the wrappers into the <Module> class of
2930 if (image_is_dynamic (image)) {
2931 klass = ((MonoDynamicImage*)image)->wrappers_type;
2933 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2934 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2942 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2943 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2947 * check_generic_wrapper_cache:
2949 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2950 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2951 * generic method definition.
2954 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2957 MonoMethod *inst, *def;
2958 MonoGenericContext *ctx;
2960 g_assert (orig_method->is_inflated);
2961 ctx = mono_method_get_context (orig_method);
2964 * Look for the instance
2966 res = mono_marshal_find_in_cache (cache, key);
2971 * Look for the definition
2973 def = mono_marshal_find_in_cache (cache, def_key);
2976 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2977 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2979 mono_memory_barrier ();
2980 mono_marshal_lock ();
2981 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2983 g_hash_table_insert (cache, key, inst);
2986 mono_marshal_unlock ();
2993 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2996 MonoMethod *inst, *res;
2999 * We use the same cache for the generic definition and the instances.
3001 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3002 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3003 mono_memory_barrier ();
3004 mono_marshal_lock ();
3005 res = (MonoMethod *)g_hash_table_lookup (cache, key);
3007 g_hash_table_insert (cache, key, inst);
3010 mono_marshal_unlock ();
3015 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
3019 MonoMethod *inst, *def;
3022 * Look for the instance
3024 res = mono_marshal_find_in_cache (cache, orig_method->klass);
3029 * Look for the definition
3031 def = mono_marshal_find_in_cache (cache, def_method->klass);
3033 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3034 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3037 mono_memory_barrier ();
3038 mono_marshal_lock ();
3039 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3041 g_hash_table_insert (cache, orig_method->klass, inst);
3044 mono_marshal_unlock ();
3051 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
3054 MonoMethod *inst, *res;
3055 WrapperInfo *ginfo, *info;
3058 * We use the same cache for the generic definition and the instances.
3060 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3061 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3063 ginfo = mono_marshal_get_wrapper_info (def);
3065 info = (WrapperInfo *)mono_image_alloc0 (def->klass->image, sizeof (WrapperInfo));
3066 info->subtype = ginfo->subtype;
3067 if (info->subtype == WRAPPER_SUBTYPE_NONE) {
3068 info->d.delegate_invoke.method = mono_class_inflate_generic_method_checked (ginfo->d.delegate_invoke.method, ctx, &error);
3069 mono_error_assert_ok (&error);
3073 mono_memory_barrier ();
3074 mono_marshal_lock ();
3075 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3077 g_hash_table_insert (cache, orig_method->klass, inst);
3080 mono_marshal_unlock ();
3085 * mono_marshal_get_delegate_begin_invoke:
3088 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
3090 MonoMethodSignature *sig;
3091 MonoMethodBuilder *mb;
3096 MonoGenericContext *ctx = NULL;
3097 MonoMethod *orig_method = NULL;
3099 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3100 !strcmp (method->name, "BeginInvoke"));
3103 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3105 if (method->is_inflated) {
3106 orig_method = method;
3107 ctx = &((MonoMethodInflated*)method)->context;
3108 method = ((MonoMethodInflated*)method)->declaring;
3111 sig = mono_signature_no_pinvoke (method);
3117 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
3118 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3122 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
3123 (GHashFunc)mono_signature_hash,
3124 (GCompareFunc)mono_metadata_signature_equal);
3125 if ((res = mono_marshal_find_in_cache (cache, sig)))
3129 g_assert (sig->hasthis);
3131 name = mono_signature_to_name (sig, "begin_invoke");
3133 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3135 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3139 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3141 mono_mb_emit_ldarg (mb, 0);
3142 mono_mb_emit_ldloc (mb, params_var);
3143 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3144 mono_mb_emit_byte (mb, CEE_RET);
3149 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3150 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3152 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3159 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
3161 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3164 MonoDomain *domain = mono_domain_get ();
3165 MonoAsyncResult *ares;
3166 MonoMethod *method = NULL;
3167 MonoMethodSignature *sig;
3168 MonoMethodMessage *msg;
3169 MonoObject *res, *exc;
3170 MonoArray *out_args;
3173 g_assert (delegate);
3175 if (!delegate->method_info) {
3176 g_assert (delegate->method);
3177 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
3178 if (!mono_error_ok (&error)) {
3179 mono_error_set_pending_exception (&error);
3182 MONO_OBJECT_SETREF (delegate, method_info, rm);
3185 if (!delegate->method_info || !delegate->method_info->method)
3186 g_assert_not_reached ();
3188 klass = delegate->object.vtable->klass;
3190 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3191 g_assert (method != NULL);
3193 sig = mono_signature_no_pinvoke (method);
3195 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3196 if (mono_error_set_pending_exception (&error))
3199 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3201 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."));
3205 if (ares->async_delegate != (MonoObject*)delegate) {
3206 mono_set_pending_exception (mono_get_exception_invalid_operation (
3207 "The IAsyncResult object provided does not match this delegate."));
3211 #ifndef DISABLE_REMOTING
3212 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3213 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3214 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3215 if (!mono_error_ok (&error)) {
3216 mono_error_set_pending_exception (&error);
3219 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3220 if (mono_error_set_pending_exception (&error))
3222 msg->call_type = CallType_EndInvoke;
3223 MONO_OBJECT_SETREF (msg, async_result, ares);
3224 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3225 if (!mono_error_ok (&error)) {
3226 mono_error_set_pending_exception (&error);
3232 res = mono_threadpool_end_invoke (ares, &out_args, &exc, &error);
3233 if (mono_error_set_pending_exception (&error))
3238 if (((MonoException*)exc)->stack_trace) {
3239 MonoError inner_error;
3240 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3241 if (is_ok (&inner_error)) {
3243 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3245 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3248 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3250 mono_set_pending_exception ((MonoException*)exc);
3253 mono_method_return_message_restore (method, params, out_args, &error);
3254 mono_error_set_pending_exception (&error);
3261 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3263 MonoType *t = mono_type_get_underlying_type (return_type);
3265 if (return_type->byref)
3266 return_type = &mono_defaults.int_class->byval_arg;
3269 case MONO_TYPE_VOID:
3270 g_assert_not_reached ();
3273 case MONO_TYPE_STRING:
3274 case MONO_TYPE_CLASS:
3275 case MONO_TYPE_OBJECT:
3276 case MONO_TYPE_ARRAY:
3277 case MONO_TYPE_SZARRAY:
3281 case MONO_TYPE_BOOLEAN:
3284 case MONO_TYPE_CHAR:
3294 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3295 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3297 case MONO_TYPE_GENERICINST:
3298 if (!mono_type_generic_inst_is_valuetype (t))
3301 case MONO_TYPE_VALUETYPE: {
3302 MonoClass *klass = mono_class_from_mono_type (return_type);
3303 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3304 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3308 case MONO_TYPE_MVAR: {
3309 MonoClass *klass = mono_class_from_mono_type (return_type);
3310 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3314 g_warning ("type 0x%x not handled", return_type->type);
3315 g_assert_not_reached ();
3318 mono_mb_emit_byte (mb, CEE_RET);
3321 #endif /* DISABLE_JIT */
3324 * mono_marshal_get_delegate_end_invoke:
3327 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3329 MonoMethodSignature *sig;
3330 MonoMethodBuilder *mb;
3335 MonoGenericContext *ctx = NULL;
3336 MonoMethod *orig_method = NULL;
3338 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3339 !strcmp (method->name, "EndInvoke"));
3342 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3344 if (method->is_inflated) {
3345 orig_method = method;
3346 ctx = &((MonoMethodInflated*)method)->context;
3347 method = ((MonoMethodInflated*)method)->declaring;
3350 sig = mono_signature_no_pinvoke (method);
3356 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3357 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3361 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3362 (GHashFunc)mono_signature_hash,
3363 (GCompareFunc)mono_metadata_signature_equal);
3364 if ((res = mono_marshal_find_in_cache (cache, sig)))
3368 g_assert (sig->hasthis);
3370 name = mono_signature_to_name (sig, "end_invoke");
3372 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3374 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3378 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3380 mono_mb_emit_ldarg (mb, 0);
3381 mono_mb_emit_ldloc (mb, params_var);
3382 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3384 if (sig->ret->type == MONO_TYPE_VOID) {
3385 mono_mb_emit_byte (mb, CEE_POP);
3386 mono_mb_emit_byte (mb, CEE_RET);
3388 mono_mb_emit_restore_result (mb, sig->ret);
3393 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3394 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3396 res = mono_mb_create_and_cache (cache, sig,
3397 mb, sig, sig->param_count + 16);
3406 MonoMethodSignature *sig;
3408 } SignaturePointerPair;
3411 signature_pointer_pair_hash (gconstpointer data)
3413 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3415 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3419 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3421 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3422 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3426 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3428 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3430 return pair->pointer == user_data;
3434 free_signature_pointer_pair (SignaturePointerPair *pair)
3440 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3442 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3444 MonoMethodBuilder *mb;
3447 gpointer cache_key = NULL;
3448 SignaturePointerPair key = { NULL, NULL };
3449 SignaturePointerPair *new_key;
3450 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3451 int pos0, pos1, pos2;
3453 MonoClass *target_class = NULL;
3454 gboolean closed_over_null = FALSE;
3455 MonoGenericContext *ctx = NULL;
3456 MonoGenericContainer *container = NULL;
3457 MonoMethod *orig_method = method;
3459 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3463 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3464 !strcmp (method->name, "Invoke"));
3466 invoke_sig = sig = mono_signature_no_pinvoke (method);
3469 * If the delegate target is null, and the target method is not static, a virtual
3470 * call is made to that method with the first delegate argument as this. This is
3471 * a non-documented .NET feature.
3474 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3475 if (target_method->is_inflated) {
3477 MonoType *target_type;
3479 g_assert (method->signature->hasthis);
3480 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3481 mono_method_get_context (method), &error);
3482 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3483 target_class = mono_class_from_mono_type (target_type);
3485 target_class = target_method->klass;
3488 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3491 if (static_method_with_first_arg_bound) {
3492 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3493 g_assert (!callvirt);
3494 invoke_sig = mono_method_signature (target_method);
3498 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3500 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3501 ctx = &((MonoMethodInflated*)method)->context;
3502 method = ((MonoMethodInflated*)method)->declaring;
3504 container = mono_method_get_generic_container (method);
3506 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
3507 g_assert (container);
3509 invoke_sig = sig = mono_signature_no_pinvoke (method);
3516 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3517 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3520 cache_key = method->klass;
3521 } else if (static_method_with_first_arg_bound) {
3522 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3523 (GHashFunc)mono_signature_hash,
3524 (GCompareFunc)mono_metadata_signature_equal);
3526 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3528 res = mono_marshal_find_in_cache (cache, invoke_sig);
3531 cache_key = invoke_sig;
3532 } else if (callvirt) {
3533 GHashTable **cache_ptr;
3535 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3537 /* We need to cache the signature+method pair */
3538 mono_marshal_lock ();
3540 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3542 key.sig = invoke_sig;
3543 key.pointer = target_method;
3544 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3545 mono_marshal_unlock ();
3549 // Inflated methods should not be in this cache because it's not stored on the imageset.
3550 g_assert (!method->is_inflated);
3551 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3552 (GHashFunc)mono_signature_hash,
3553 (GCompareFunc)mono_metadata_signature_equal);
3554 res = mono_marshal_find_in_cache (cache, sig);
3560 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3561 static_sig->hasthis = 0;
3562 if (!static_method_with_first_arg_bound)
3563 invoke_sig = static_sig;
3565 if (static_method_with_first_arg_bound)
3566 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3567 else if (closed_over_null)
3568 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3570 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3572 name = mono_signature_to_name (invoke_sig, "invoke");
3574 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3576 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3580 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3582 /* allocate local 0 (object) */
3583 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3584 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3585 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3586 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3587 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3590 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3592 g_assert (sig->hasthis);
3595 * {type: sig->ret} res;
3596 * if (delegates == null) {
3597 * return this.<target> ( args .. );
3599 * int i = 0, len = this.delegates.Length;
3601 * res = this.delegates [i].Invoke ( args .. );
3602 * } while (++i < len);
3607 /* this wrapper can be used in unmanaged-managed transitions */
3608 emit_thread_interrupt_checkpoint (mb);
3610 /* delegates = this.delegates */
3611 mono_mb_emit_ldarg (mb, 0);
3612 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3613 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3614 mono_mb_emit_stloc (mb, local_delegates);
3616 /* if (delegates == null) */
3617 mono_mb_emit_ldloc (mb, local_delegates);
3618 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3620 /* return target.<target_method|method_ptr> ( args .. ); */
3622 /* target = d.target; */
3623 mono_mb_emit_ldarg (mb, 0);
3624 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3625 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3626 mono_mb_emit_stloc (mb, local_target);
3628 /*static methods with bound first arg can have null target and still be bound*/
3629 if (!static_method_with_first_arg_bound) {
3630 /* if target != null */
3631 mono_mb_emit_ldloc (mb, local_target);
3632 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3634 /* then call this->method_ptr nonstatic */
3637 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3639 mono_mb_emit_ldloc (mb, local_target);
3640 for (i = 0; i < sig->param_count; ++i)
3641 mono_mb_emit_ldarg (mb, i + 1);
3642 mono_mb_emit_ldarg (mb, 0);
3643 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3644 mono_mb_emit_byte (mb, CEE_LDIND_I);
3645 mono_mb_emit_ldarg (mb, 0);
3646 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3647 mono_mb_emit_byte (mb, CEE_LDIND_I);
3648 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3649 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3650 mono_mb_emit_byte (mb, CEE_RET);
3653 /* else [target == null] call this->method_ptr static */
3654 mono_mb_patch_branch (mb, pos0);
3658 if (!closed_over_null) {
3659 if (target_class->valuetype) {
3660 mono_mb_emit_ldarg (mb, 1);
3661 for (i = 1; i < sig->param_count; ++i)
3662 mono_mb_emit_ldarg (mb, i + 1);
3663 mono_mb_emit_op (mb, CEE_CALL, target_method);
3665 mono_mb_emit_ldarg (mb, 1);
3666 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3667 for (i = 1; i < sig->param_count; ++i)
3668 mono_mb_emit_ldarg (mb, i + 1);
3669 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3672 mono_mb_emit_byte (mb, CEE_LDNULL);
3673 for (i = 0; i < sig->param_count; ++i)
3674 mono_mb_emit_ldarg (mb, i + 1);
3675 mono_mb_emit_op (mb, CEE_CALL, target_method);
3678 if (static_method_with_first_arg_bound) {
3679 mono_mb_emit_ldloc (mb, local_target);
3680 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3681 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3683 for (i = 0; i < sig->param_count; ++i)
3684 mono_mb_emit_ldarg (mb, i + 1);
3685 mono_mb_emit_ldarg (mb, 0);
3686 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3687 mono_mb_emit_byte (mb, CEE_LDIND_I);
3688 mono_mb_emit_ldarg (mb, 0);
3689 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3690 mono_mb_emit_byte (mb, CEE_LDIND_I);
3691 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3692 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3695 mono_mb_emit_byte (mb, CEE_RET);
3697 /* else [delegates != null] */
3698 mono_mb_patch_branch (mb, pos2);
3700 /* len = delegates.Length; */
3701 mono_mb_emit_ldloc (mb, local_delegates);
3702 mono_mb_emit_byte (mb, CEE_LDLEN);
3703 mono_mb_emit_byte (mb, CEE_CONV_I4);
3704 mono_mb_emit_stloc (mb, local_len);
3707 mono_mb_emit_icon (mb, 0);
3708 mono_mb_emit_stloc (mb, local_i);
3710 pos1 = mono_mb_get_label (mb);
3712 /* d = delegates [i]; */
3713 mono_mb_emit_ldloc (mb, local_delegates);
3714 mono_mb_emit_ldloc (mb, local_i);
3715 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3716 mono_mb_emit_stloc (mb, local_d);
3718 /* res = d.Invoke ( args .. ); */
3719 mono_mb_emit_ldloc (mb, local_d);
3720 for (i = 0; i < sig->param_count; i++)
3721 mono_mb_emit_ldarg (mb, i + 1);
3723 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3726 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3727 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3730 mono_mb_emit_stloc (mb, local_res);
3733 mono_mb_emit_add_to_local (mb, local_i, 1);
3736 mono_mb_emit_ldloc (mb, local_i);
3737 mono_mb_emit_ldloc (mb, local_len);
3738 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3742 mono_mb_emit_ldloc (mb, local_res);
3743 mono_mb_emit_byte (mb, CEE_RET);
3745 mb->skip_visibility = 1;
3746 #endif /* DISABLE_JIT */
3748 info = mono_wrapper_info_create (mb, subtype);
3749 info->d.delegate_invoke.method = method;
3754 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3755 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3756 } else if (callvirt) {
3757 new_key = g_new0 (SignaturePointerPair, 1);
3760 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3764 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3768 /* mono_method_print_code (res); */
3774 * mono_marshal_get_delegate_invoke:
3775 * The returned method invokes all methods in a multicast delegate.
3778 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3780 gboolean callvirt = FALSE;
3781 gboolean static_method_with_first_arg_bound = FALSE;
3782 MonoMethod *target_method = NULL;
3783 MonoMethodSignature *sig;
3785 sig = mono_signature_no_pinvoke (method);
3787 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3789 target_method = del->method;
3792 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3793 static_method_with_first_arg_bound = TRUE;
3794 target_method = del->method;
3797 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3801 MonoMethodSignature *ctor_sig;
3802 MonoMethodSignature *sig;
3805 /* protected by the marshal lock, contains CtorSigPair pointers */
3806 static GSList *strsig_list = NULL;
3808 static MonoMethodSignature *
3809 lookup_string_ctor_signature (MonoMethodSignature *sig)
3811 MonoMethodSignature *callsig;
3815 mono_marshal_lock ();
3817 for (item = strsig_list; item; item = item->next) {
3818 cs = (CtorSigPair *)item->data;
3819 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3820 * because it is lock-free.
3822 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3827 mono_marshal_unlock ();
3831 static MonoMethodSignature *
3832 add_string_ctor_signature (MonoMethod *method)
3834 MonoMethodSignature *callsig;
3837 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3838 callsig->ret = &mono_defaults.string_class->byval_arg;
3839 cs = g_new (CtorSigPair, 1);
3841 cs->ctor_sig = mono_method_signature (method);
3843 mono_marshal_lock ();
3844 strsig_list = g_slist_prepend (strsig_list, cs);
3845 mono_marshal_unlock ();
3850 * mono_marshal_get_string_ctor_signature:
3852 * Return the modified signature used by string ctors (they return the newly created
3855 MonoMethodSignature*
3856 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3858 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3860 sig = add_string_ctor_signature (method);
3866 get_runtime_invoke_type (MonoType *t, gboolean ret)
3869 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3871 /* Can't share this with 'I' as that needs another indirection */
3872 return &mono_defaults.int_class->this_arg;
3875 if (MONO_TYPE_IS_REFERENCE (t))
3876 return &mono_defaults.object_class->byval_arg;
3879 /* The result needs to be boxed */
3884 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3887 return &mono_defaults.sbyte_class->byval_arg;
3889 return &mono_defaults.int16_class->byval_arg;
3891 return &mono_defaults.int32_class->byval_arg;
3894 return &mono_defaults.int64_class->byval_arg;
3895 case MONO_TYPE_BOOLEAN:
3896 return &mono_defaults.byte_class->byval_arg;
3897 case MONO_TYPE_CHAR:
3898 return &mono_defaults.uint16_class->byval_arg;
3900 return &mono_defaults.int_class->byval_arg;
3901 case MONO_TYPE_VALUETYPE:
3902 if (t->data.klass->enumtype) {
3903 t = mono_class_enum_basetype (t->data.klass);
3913 * mono_marshal_get_runtime_invoke_sig:
3915 * Return a common signature used for sharing runtime invoke wrappers.
3917 static MonoMethodSignature*
3918 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3920 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3923 res->generic_param_count = 0;
3924 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3925 for (i = 0; i < res->param_count; ++i)
3926 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3932 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3934 /* Can't share wrappers which return a vtype since it needs to be boxed */
3935 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))
3938 return mono_metadata_signature_equal (sig1, sig2);
3946 * Emit the call to the wrapper method from a runtime invoke wrapper.
3949 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3950 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3952 gboolean virtual_, gboolean need_direct_wrapper)
3954 static MonoString *string_dummy = NULL;
3956 int *tmp_nullable_locals;
3957 gboolean void_ret = FALSE;
3958 gboolean string_ctor = method && method->string_ctor;
3960 /* to make it work with our special string constructors */
3961 if (!string_dummy) {
3962 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3963 string_dummy = mono_string_new_wrapper ("dummy");
3967 g_assert (sig->hasthis);
3968 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3973 if (mono_gc_is_moving ()) {
3974 mono_mb_emit_ptr (mb, &string_dummy);
3975 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3977 mono_mb_emit_ptr (mb, string_dummy);
3980 mono_mb_emit_ldarg (mb, 0);
3984 tmp_nullable_locals = g_new0 (int, sig->param_count);
3986 for (i = 0; i < sig->param_count; i++) {
3987 MonoType *t = sig->params [i];
3990 mono_mb_emit_ldarg (mb, 1);
3992 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3993 mono_mb_emit_byte (mb, CEE_ADD);
3997 mono_mb_emit_byte (mb, CEE_LDIND_I);
3998 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3999 * So to make this work we unbox it to a local variablee and push a reference to that.
4001 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4002 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4004 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4005 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4006 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4011 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4012 type = sig->params [i]->type;
4016 case MONO_TYPE_BOOLEAN:
4020 case MONO_TYPE_CHAR:
4029 mono_mb_emit_byte (mb, CEE_LDIND_I);
4030 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4032 case MONO_TYPE_STRING:
4033 case MONO_TYPE_CLASS:
4034 case MONO_TYPE_ARRAY:
4036 case MONO_TYPE_SZARRAY:
4037 case MONO_TYPE_OBJECT:
4038 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4040 case MONO_TYPE_GENERICINST:
4041 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4042 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4047 case MONO_TYPE_VALUETYPE:
4048 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4049 type = mono_class_enum_basetype (t->data.klass)->type;
4052 mono_mb_emit_byte (mb, CEE_LDIND_I);
4053 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4054 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4055 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4056 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4058 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4062 g_assert_not_reached ();
4067 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4068 } else if (need_direct_wrapper) {
4069 mono_mb_emit_op (mb, CEE_CALL, method);
4071 mono_mb_emit_ldarg (mb, 3);
4072 mono_mb_emit_calli (mb, callsig);
4075 if (sig->ret->byref) {
4077 g_assert_not_reached ();
4080 switch (sig->ret->type) {
4081 case MONO_TYPE_VOID:
4085 case MONO_TYPE_BOOLEAN:
4086 case MONO_TYPE_CHAR:
4099 case MONO_TYPE_VALUETYPE:
4100 case MONO_TYPE_TYPEDBYREF:
4101 case MONO_TYPE_GENERICINST:
4102 /* box value types */
4103 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4105 case MONO_TYPE_STRING:
4106 case MONO_TYPE_CLASS:
4107 case MONO_TYPE_ARRAY:
4108 case MONO_TYPE_SZARRAY:
4109 case MONO_TYPE_OBJECT:
4113 /* The result is an IntPtr */
4114 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4117 g_assert_not_reached ();
4121 mono_mb_emit_stloc (mb, loc_res);
4123 /* Convert back nullable-byref arguments */
4124 for (i = 0; i < sig->param_count; i++) {
4125 MonoType *t = sig->params [i];
4128 * Box the result and put it back into the array, the caller will have
4129 * to obtain it from there.
4131 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4132 mono_mb_emit_ldarg (mb, 1);
4133 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4134 mono_mb_emit_byte (mb, CEE_ADD);
4136 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4137 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4139 mono_mb_emit_byte (mb, CEE_STIND_REF);
4143 g_free (tmp_nullable_locals);
4147 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
4148 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4149 gboolean virtual_, gboolean need_direct_wrapper)
4152 MonoExceptionClause *clause;
4153 int loc_res, loc_exc;
4155 /* The wrapper looks like this:
4161 * } catch (Exception e) {
4169 /* allocate local 0 (object) tmp */
4170 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4171 /* allocate local 1 (object) exc */
4172 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4174 /* *exc is assumed to be initialized to NULL by the caller */
4176 mono_mb_emit_byte (mb, CEE_LDARG_2);
4177 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4182 labels [1] = mono_mb_get_label (mb);
4183 emit_thread_force_interrupt_checkpoint (mb);
4184 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4186 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4188 /* Add a try clause around the call */
4189 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
4190 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4191 clause->data.catch_class = mono_defaults.exception_class;
4192 clause->try_offset = labels [1];
4193 clause->try_len = mono_mb_get_label (mb) - labels [1];
4195 clause->handler_offset = mono_mb_get_label (mb);
4198 mono_mb_emit_stloc (mb, loc_exc);
4199 mono_mb_emit_byte (mb, CEE_LDARG_2);
4200 mono_mb_emit_ldloc (mb, loc_exc);
4201 mono_mb_emit_byte (mb, CEE_STIND_REF);
4203 mono_mb_emit_branch (mb, CEE_LEAVE);
4205 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4207 mono_mb_set_clauses (mb, 1, clause);
4209 mono_mb_patch_branch (mb, labels [2]);
4210 mono_mb_emit_ldloc (mb, loc_res);
4211 mono_mb_emit_byte (mb, CEE_RET);
4216 mono_mb_patch_branch (mb, labels [0]);
4217 emit_thread_force_interrupt_checkpoint (mb);
4218 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4220 mono_mb_emit_ldloc (mb, 0);
4221 mono_mb_emit_byte (mb, CEE_RET);
4226 * mono_marshal_get_runtime_invoke:
4227 * Generates IL code for the runtime invoke function:
4229 * <code>MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)</code>
4231 * We also catch exceptions if \p exc is not NULL.
4232 * If \p virtual is TRUE, then \p method is invoked virtually on \p this. This is useful since
4233 * it means that the compiled code for \p method does not have to be looked up
4234 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4235 * its \p method argument.
4238 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4240 MonoMethodSignature *sig, *csig, *callsig;
4241 MonoMethodBuilder *mb;
4242 GHashTable *cache = NULL;
4243 MonoClass *target_klass;
4244 MonoMethod *res = NULL;
4245 static MonoMethodSignature *cctor_signature = NULL;
4246 static MonoMethodSignature *finalize_signature = NULL;
4248 const char *param_names [16];
4249 gboolean need_direct_wrapper = FALSE;
4254 if (!cctor_signature) {
4255 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4256 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4258 if (!finalize_signature) {
4259 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4260 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4261 finalize_signature->hasthis = 1;
4265 need_direct_wrapper = TRUE;
4268 * Use a separate cache indexed by methods to speed things up and to avoid the
4269 * boundless mempool growth caused by the signature_dup stuff below.
4272 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4274 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4276 res = mono_marshal_find_in_cache (cache, method);
4280 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4281 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4283 * Array Get/Set/Address methods. The JIT implements them using inline code
4284 * so we need to create an invoke wrapper which calls the method directly.
4286 need_direct_wrapper = TRUE;
4289 if (method->string_ctor) {
4290 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4292 callsig = add_string_ctor_signature (method);
4293 /* Can't share this as we push a string as this */
4294 need_direct_wrapper = TRUE;
4296 if (method_is_dynamic (method))
4297 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4299 callsig = mono_method_signature (method);
4302 sig = mono_method_signature (method);
4304 target_klass = get_wrapper_target_class (method->klass->image);
4306 /* Try to share wrappers for non-corlib methods with simple signatures */
4307 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4308 callsig = cctor_signature;
4309 target_klass = mono_defaults.object_class;
4310 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4311 callsig = finalize_signature;
4312 target_klass = mono_defaults.object_class;
4315 if (need_direct_wrapper) {
4316 /* Already searched at the start */
4318 MonoMethodSignature *tmp_sig;
4320 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4321 GHashTable **cache_table = NULL;
4323 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4324 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4326 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4328 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4329 (GCompareFunc)runtime_invoke_signature_equal);
4331 /* from mono_marshal_find_in_cache */
4332 mono_marshal_lock ();
4333 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4334 mono_marshal_unlock ();
4341 /* Make a copy of the signature from the image mempool */
4343 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4347 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4349 csig->ret = &mono_defaults.object_class->byval_arg;
4350 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4351 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4353 csig->params [0] = &mono_defaults.object_class->byval_arg;
4354 csig->params [1] = &mono_defaults.int_class->byval_arg;
4355 csig->params [2] = &mono_defaults.int_class->byval_arg;
4356 csig->params [3] = &mono_defaults.int_class->byval_arg;
4359 /* This is called from runtime code so it has to be cdecl */
4360 csig->call_convention = MONO_CALL_C;
4363 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4364 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4368 param_names [0] = "this";
4369 param_names [1] = "params";
4370 param_names [2] = "exc";
4371 param_names [3] = "method";
4372 mono_mb_set_param_names (mb, param_names);
4374 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4377 if (need_direct_wrapper) {
4379 mb->skip_visibility = 1;
4381 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4382 info->d.runtime_invoke.method = method;
4383 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4385 /* taken from mono_mb_create_and_cache */
4386 mono_marshal_lock ();
4387 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4388 mono_marshal_unlock ();
4390 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4391 info->d.runtime_invoke.sig = callsig;
4393 /* Somebody may have created it before us */
4396 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4398 mono_marshal_lock ();
4399 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4401 GHashTable *direct_cache;
4403 g_hash_table_insert (cache, callsig, res);
4404 /* Can't insert it into wrapper_hash since the key is a signature */
4405 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4407 g_hash_table_insert (direct_cache, method, res);
4409 mono_free_method (newm);
4411 mono_marshal_unlock ();
4414 /* end mono_mb_create_and_cache */
4423 * mono_marshal_get_runtime_invoke_dynamic:
4425 * Return a method which can be used to invoke managed methods from native code
4427 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4428 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4429 * ARGS should point to an architecture specific structure containing
4430 * the arguments and space for the return value.
4431 * The other arguments are the same as for runtime_invoke (), except that
4432 * ARGS should contain the this argument too.
4433 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4434 * is only one copy of it, which is useful in full-aot.
4437 mono_marshal_get_runtime_invoke_dynamic (void)
4439 static MonoMethod *method;
4440 MonoMethodSignature *csig;
4441 MonoExceptionClause *clause;
4442 MonoMethodBuilder *mb;
4450 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4452 csig->ret = &mono_defaults.void_class->byval_arg;
4453 csig->params [0] = &mono_defaults.int_class->byval_arg;
4454 csig->params [1] = &mono_defaults.int_class->byval_arg;
4455 csig->params [2] = &mono_defaults.int_class->byval_arg;
4456 csig->params [3] = &mono_defaults.int_class->byval_arg;
4458 name = g_strdup ("runtime_invoke_dynamic");
4459 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4463 /* allocate local 0 (object) tmp */
4464 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4465 /* allocate local 1 (object) exc */
4466 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4468 /* cond set *exc to null */
4469 mono_mb_emit_byte (mb, CEE_LDARG_1);
4470 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4471 mono_mb_emit_byte (mb, 3);
4472 mono_mb_emit_byte (mb, CEE_LDARG_1);
4473 mono_mb_emit_byte (mb, CEE_LDNULL);
4474 mono_mb_emit_byte (mb, CEE_STIND_REF);
4476 emit_thread_force_interrupt_checkpoint (mb);
4478 mono_mb_emit_byte (mb, CEE_LDARG_0);
4479 mono_mb_emit_byte (mb, CEE_LDARG_2);
4480 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4481 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4483 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4485 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4486 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4487 clause->try_len = mono_mb_get_label (mb);
4490 clause->data.filter_offset = mono_mb_get_label (mb);
4492 mono_mb_emit_byte (mb, CEE_POP);
4493 mono_mb_emit_byte (mb, CEE_LDARG_1);
4494 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4495 mono_mb_emit_byte (mb, CEE_PREFIX1);
4496 mono_mb_emit_byte (mb, CEE_CGT_UN);
4497 mono_mb_emit_byte (mb, CEE_PREFIX1);
4498 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4500 clause->handler_offset = mono_mb_get_label (mb);
4503 /* store exception */
4504 mono_mb_emit_stloc (mb, 1);
4506 mono_mb_emit_byte (mb, CEE_LDARG_1);
4507 mono_mb_emit_ldloc (mb, 1);
4508 mono_mb_emit_byte (mb, CEE_STIND_REF);
4510 mono_mb_emit_byte (mb, CEE_LDNULL);
4511 mono_mb_emit_stloc (mb, 0);
4513 mono_mb_emit_branch (mb, CEE_LEAVE);
4515 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4517 mono_mb_set_clauses (mb, 1, clause);
4520 mono_mb_patch_branch (mb, pos);
4521 //mono_mb_emit_ldloc (mb, 0);
4522 mono_mb_emit_byte (mb, CEE_RET);
4523 #endif /* DISABLE_JIT */
4525 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4527 mono_marshal_lock ();
4528 /* double-checked locking */
4530 method = mono_mb_create (mb, csig, 16, info);
4532 mono_marshal_unlock ();
4540 * mono_marshal_get_runtime_invoke_for_sig:
4542 * Return a runtime invoke wrapper for a given signature.
4545 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4547 MonoMethodSignature *csig, *callsig;
4548 MonoMethodBuilder *mb;
4550 GHashTable *cache = NULL;
4551 GHashTable **cache_table = NULL;
4552 MonoMethod *res = NULL;
4554 const char *param_names [16];
4557 /* A simplified version of mono_marshal_get_runtime_invoke */
4559 image = mono_defaults.corlib;
4561 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4563 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4565 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4566 (GCompareFunc)runtime_invoke_signature_equal);
4568 /* from mono_marshal_find_in_cache */
4569 mono_marshal_lock ();
4570 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4571 mono_marshal_unlock ();
4578 /* Make a copy of the signature from the image mempool */
4579 callsig = mono_metadata_signature_dup_full (image, callsig);
4581 csig = mono_metadata_signature_alloc (image, 4);
4582 csig->ret = &mono_defaults.object_class->byval_arg;
4583 csig->params [0] = &mono_defaults.object_class->byval_arg;
4584 csig->params [1] = &mono_defaults.int_class->byval_arg;
4585 csig->params [2] = &mono_defaults.int_class->byval_arg;
4586 csig->params [3] = &mono_defaults.int_class->byval_arg;
4589 /* This is called from runtime code so it has to be cdecl */
4590 csig->call_convention = MONO_CALL_C;
4593 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4594 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4598 param_names [0] = "this";
4599 param_names [1] = "params";
4600 param_names [2] = "exc";
4601 param_names [3] = "method";
4602 mono_mb_set_param_names (mb, param_names);
4604 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4607 /* taken from mono_mb_create_and_cache */
4608 mono_marshal_lock ();
4609 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4610 mono_marshal_unlock ();
4612 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4613 info->d.runtime_invoke.sig = callsig;
4615 /* Somebody may have created it before us */
4618 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4620 mono_marshal_lock ();
4621 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4624 g_hash_table_insert (cache, callsig, res);
4626 mono_free_method (newm);
4628 mono_marshal_unlock ();
4631 /* end mono_mb_create_and_cache */
4640 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4642 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4643 klass->name_space, klass->name);
4645 mono_mb_emit_exception_marshal_directive (mb, msg);
4650 * mono_marshal_get_icall_wrapper:
4651 * Generates IL code for the icall wrapper. The generated method
4652 * calls the unmanaged code in \p func.
4655 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4657 MonoMethodSignature *csig, *csig2;
4658 MonoMethodBuilder *mb;
4663 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4664 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4667 g_assert (sig->pinvoke);
4669 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4671 mb->method->save_lmf = 1;
4673 /* Add an explicit this argument */
4675 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4677 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4681 mono_mb_emit_byte (mb, CEE_LDARG_0);
4683 for (i = 0; i < sig->param_count; i++)
4684 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4686 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4687 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4688 mono_mb_emit_calli (mb, csig2);
4689 if (check_exceptions)
4690 emit_thread_interrupt_checkpoint (mb);
4691 mono_mb_emit_byte (mb, CEE_RET);
4694 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4696 if (csig->call_convention == MONO_CALL_VARARG)
4697 csig->call_convention = 0;
4699 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4700 info->d.icall.func = (gpointer)func;
4701 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4708 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4709 MonoMarshalSpec *spec,
4710 int conv_arg, MonoType **conv_arg_type,
4711 MarshalAction action)
4714 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4715 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4721 static MonoClass *ICustomMarshaler = NULL;
4722 static MonoMethod *cleanup_native, *cleanup_managed;
4723 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4724 MonoMethod *get_instance = NULL;
4725 MonoMethodBuilder *mb = m->mb;
4726 char *exception_msg = NULL;
4730 if (!ICustomMarshaler) {
4731 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4733 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4734 goto handle_exception;
4737 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4738 g_assert (cleanup_native);
4739 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4740 g_assert (cleanup_managed);
4741 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4742 g_assert (marshal_managed_to_native);
4743 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4744 g_assert (marshal_native_to_managed);
4746 mono_memory_barrier ();
4747 ICustomMarshaler = klass;
4750 if (spec->data.custom_data.image)
4751 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4753 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4754 g_assert (mtype != NULL);
4755 mono_error_assert_ok (&error);
4756 mklass = mono_class_from_mono_type (mtype);
4757 g_assert (mklass != NULL);
4759 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4760 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4762 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4764 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4765 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4766 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4767 (get_sig->params [0]->type != MONO_TYPE_STRING))
4768 get_instance = NULL;
4772 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);
4775 /* Throw exception and emit compensation code if neccesary */
4776 if (exception_msg) {
4778 case MARSHAL_ACTION_CONV_IN:
4779 case MARSHAL_ACTION_CONV_RESULT:
4780 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4781 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4782 mono_mb_emit_byte (mb, CEE_POP);
4784 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4785 g_free (exception_msg);
4788 case MARSHAL_ACTION_PUSH:
4789 mono_mb_emit_byte (mb, CEE_LDNULL);
4797 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4798 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4801 case MARSHAL_ACTION_CONV_IN:
4803 case MONO_TYPE_CLASS:
4804 case MONO_TYPE_OBJECT:
4805 case MONO_TYPE_STRING:
4806 case MONO_TYPE_ARRAY:
4807 case MONO_TYPE_SZARRAY:
4808 case MONO_TYPE_VALUETYPE:
4812 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4813 g_assert_not_reached ();
4817 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4819 mono_mb_emit_byte (mb, CEE_LDNULL);
4820 mono_mb_emit_stloc (mb, conv_arg);
4822 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4825 /* Minic MS.NET behavior */
4826 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4829 /* Check for null */
4830 mono_mb_emit_ldarg (mb, argnum);
4832 mono_mb_emit_byte (mb, CEE_LDIND_I);
4833 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4835 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4837 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4839 mono_mb_emit_ldarg (mb, argnum);
4841 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4843 if (t->type == MONO_TYPE_VALUETYPE) {
4845 * Since we can't determine the type of the argument, we
4846 * will assume the unmanaged function takes a pointer.
4848 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4850 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4853 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4854 mono_mb_emit_stloc (mb, conv_arg);
4856 mono_mb_patch_branch (mb, pos2);
4859 case MARSHAL_ACTION_CONV_OUT:
4860 /* Check for null */
4861 mono_mb_emit_ldloc (mb, conv_arg);
4862 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4865 mono_mb_emit_ldarg (mb, argnum);
4867 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4869 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4871 mono_mb_emit_ldloc (mb, conv_arg);
4872 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4873 mono_mb_emit_byte (mb, CEE_STIND_REF);
4874 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4875 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4877 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4879 mono_mb_emit_ldloc (mb, conv_arg);
4880 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4882 /* We have nowhere to store the result */
4883 mono_mb_emit_byte (mb, CEE_POP);
4886 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4888 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4890 mono_mb_emit_ldloc (mb, conv_arg);
4892 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4894 mono_mb_patch_branch (mb, pos2);
4897 case MARSHAL_ACTION_PUSH:
4899 mono_mb_emit_ldloc_addr (mb, conv_arg);
4901 mono_mb_emit_ldloc (mb, conv_arg);
4904 case MARSHAL_ACTION_CONV_RESULT:
4905 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4907 mono_mb_emit_stloc (mb, 3);
4909 mono_mb_emit_ldloc (mb, 3);
4910 mono_mb_emit_stloc (mb, loc1);
4912 /* Check for null */
4913 mono_mb_emit_ldloc (mb, 3);
4914 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4916 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4918 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4919 mono_mb_emit_byte (mb, CEE_DUP);
4921 mono_mb_emit_ldloc (mb, 3);
4922 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4923 mono_mb_emit_stloc (mb, 3);
4925 mono_mb_emit_ldloc (mb, loc1);
4926 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4928 mono_mb_patch_branch (mb, pos2);
4931 case MARSHAL_ACTION_MANAGED_CONV_IN:
4932 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4934 mono_mb_emit_byte (mb, CEE_LDNULL);
4935 mono_mb_emit_stloc (mb, conv_arg);
4937 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4940 /* Check for null */
4941 mono_mb_emit_ldarg (mb, argnum);
4943 mono_mb_emit_byte (mb, CEE_LDIND_I);
4944 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4946 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4947 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4949 mono_mb_emit_ldarg (mb, argnum);
4951 mono_mb_emit_byte (mb, CEE_LDIND_I);
4953 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4954 mono_mb_emit_stloc (mb, conv_arg);
4956 mono_mb_patch_branch (mb, pos2);
4959 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4960 g_assert (!t->byref);
4962 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4964 mono_mb_emit_stloc (mb, 3);
4966 mono_mb_emit_ldloc (mb, 3);
4967 mono_mb_emit_stloc (mb, loc1);
4969 /* Check for null */
4970 mono_mb_emit_ldloc (mb, 3);
4971 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4973 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4974 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4975 mono_mb_emit_byte (mb, CEE_DUP);
4977 mono_mb_emit_ldloc (mb, 3);
4978 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4979 mono_mb_emit_stloc (mb, 3);
4981 mono_mb_emit_ldloc (mb, loc1);
4982 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4984 mono_mb_patch_branch (mb, pos2);
4987 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4989 /* Check for null */
4990 mono_mb_emit_ldloc (mb, conv_arg);
4991 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4994 mono_mb_emit_ldarg (mb, argnum);
4996 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4998 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5000 mono_mb_emit_ldloc (mb, conv_arg);
5001 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5002 mono_mb_emit_byte (mb, CEE_STIND_I);
5005 /* Call CleanUpManagedData */
5006 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5008 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5010 mono_mb_emit_ldloc (mb, conv_arg);
5011 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5013 mono_mb_patch_branch (mb, pos2);
5017 g_assert_not_reached ();
5025 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5026 MonoMarshalSpec *spec,
5027 int conv_arg, MonoType **conv_arg_type,
5028 MarshalAction action)
5031 MonoMethodBuilder *mb = m->mb;
5034 case MARSHAL_ACTION_CONV_IN: {
5035 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5037 g_assert (t->type == MONO_TYPE_OBJECT);
5038 g_assert (!t->byref);
5040 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5041 mono_mb_emit_ldarg (mb, argnum);
5042 mono_mb_emit_icon (mb, encoding);
5043 mono_mb_emit_icon (mb, t->attrs);
5044 mono_mb_emit_icall (mb, mono_marshal_asany);
5045 mono_mb_emit_stloc (mb, conv_arg);
5049 case MARSHAL_ACTION_PUSH:
5050 mono_mb_emit_ldloc (mb, conv_arg);
5053 case MARSHAL_ACTION_CONV_OUT: {
5054 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5056 mono_mb_emit_ldarg (mb, argnum);
5057 mono_mb_emit_ldloc (mb, conv_arg);
5058 mono_mb_emit_icon (mb, encoding);
5059 mono_mb_emit_icon (mb, t->attrs);
5060 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5065 g_assert_not_reached ();
5072 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5073 MonoMarshalSpec *spec,
5074 int conv_arg, MonoType **conv_arg_type,
5075 MarshalAction action)
5078 MonoMethodBuilder *mb = m->mb;
5079 MonoClass *klass, *date_time_class;
5082 klass = mono_class_from_mono_type (t);
5084 date_time_class = mono_class_get_date_time_class ();
5087 case MARSHAL_ACTION_CONV_IN:
5088 if (klass == date_time_class) {
5089 /* Convert it to an OLE DATE type */
5090 static MonoMethod *to_oadate;
5093 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5094 g_assert (to_oadate);
5096 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5099 mono_mb_emit_ldarg (mb, argnum);
5100 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5103 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5105 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5107 mono_mb_emit_ldarg_addr (mb, argnum);
5108 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5109 mono_mb_emit_stloc (mb, conv_arg);
5113 mono_mb_patch_branch (mb, pos);
5117 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5120 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5122 /* store the address of the source into local variable 0 */
5124 mono_mb_emit_ldarg (mb, argnum);
5126 mono_mb_emit_ldarg_addr (mb, argnum);
5128 mono_mb_emit_stloc (mb, 0);
5130 /* allocate space for the native struct and
5131 * store the address into local variable 1 (dest) */
5132 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5133 mono_mb_emit_byte (mb, CEE_PREFIX1);
5134 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5135 mono_mb_emit_stloc (mb, conv_arg);
5138 mono_mb_emit_ldloc (mb, 0);
5139 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5142 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5144 mono_mb_emit_ldloc (mb, conv_arg);
5145 mono_mb_emit_stloc (mb, 1);
5147 /* emit valuetype conversion code */
5148 emit_struct_conv (mb, klass, FALSE);
5152 mono_mb_patch_branch (mb, pos);
5155 case MARSHAL_ACTION_PUSH:
5156 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5158 g_assert (!t->byref);
5160 /* Have to change the signature since the vtype is passed byref */
5161 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5163 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5164 mono_mb_emit_ldarg_addr (mb, argnum);
5166 mono_mb_emit_ldloc (mb, conv_arg);
5170 if (klass == date_time_class) {
5172 mono_mb_emit_ldloc_addr (mb, conv_arg);
5174 mono_mb_emit_ldloc (mb, conv_arg);
5178 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5179 mono_mb_emit_ldarg (mb, argnum);
5182 mono_mb_emit_ldloc (mb, conv_arg);
5184 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5185 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5189 case MARSHAL_ACTION_CONV_OUT:
5190 if (klass == date_time_class) {
5191 /* Convert from an OLE DATE type */
5192 static MonoMethod *from_oadate;
5197 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5199 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5200 g_assert (from_oadate);
5202 mono_mb_emit_ldarg (mb, argnum);
5203 mono_mb_emit_ldloc (mb, conv_arg);
5204 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5205 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5210 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5214 /* dst = argument */
5215 mono_mb_emit_ldarg (mb, argnum);
5216 mono_mb_emit_stloc (mb, 1);
5218 mono_mb_emit_ldloc (mb, 1);
5219 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5221 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5222 /* src = tmp_locals [i] */
5223 mono_mb_emit_ldloc (mb, conv_arg);
5224 mono_mb_emit_stloc (mb, 0);
5226 /* emit valuetype conversion code */
5227 emit_struct_conv (mb, klass, TRUE);
5231 emit_struct_free (mb, klass, conv_arg);
5234 mono_mb_patch_branch (mb, pos);
5237 case MARSHAL_ACTION_CONV_RESULT:
5238 if (mono_class_is_explicit_layout (klass) || klass->blittable) {
5239 mono_mb_emit_stloc (mb, 3);
5243 /* load pointer to returned value type */
5244 g_assert (m->vtaddr_var);
5245 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5246 /* store the address of the source into local variable 0 */
5247 mono_mb_emit_stloc (mb, 0);
5249 mono_mb_emit_ldloc_addr (mb, 3);
5250 mono_mb_emit_stloc (mb, 1);
5252 /* emit valuetype conversion code */
5253 emit_struct_conv (mb, klass, TRUE);
5256 case MARSHAL_ACTION_MANAGED_CONV_IN:
5257 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5262 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5264 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5268 mono_mb_emit_ldarg (mb, argnum);
5270 mono_mb_emit_ldarg_addr (mb, argnum);
5271 mono_mb_emit_stloc (mb, 0);
5274 mono_mb_emit_ldloc (mb, 0);
5275 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5278 mono_mb_emit_ldloc_addr (mb, conv_arg);
5279 mono_mb_emit_stloc (mb, 1);
5281 /* emit valuetype conversion code */
5282 emit_struct_conv (mb, klass, TRUE);
5285 mono_mb_patch_branch (mb, pos);
5288 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5289 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5291 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5294 /* Check for null */
5295 mono_mb_emit_ldarg (mb, argnum);
5296 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5299 mono_mb_emit_ldloc_addr (mb, conv_arg);
5300 mono_mb_emit_stloc (mb, 0);
5303 mono_mb_emit_ldarg (mb, argnum);
5304 mono_mb_emit_stloc (mb, 1);
5306 /* emit valuetype conversion code */
5307 emit_struct_conv (mb, klass, FALSE);
5309 mono_mb_patch_branch (mb, pos2);
5312 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5313 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5314 mono_mb_emit_stloc (mb, 3);
5319 /* load pointer to returned value type */
5320 g_assert (m->vtaddr_var);
5321 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5323 /* store the address of the source into local variable 0 */
5324 mono_mb_emit_stloc (mb, 0);
5325 /* allocate space for the native struct and
5326 * store the address into dst_ptr */
5327 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5328 m->retobj_class = klass;
5329 g_assert (m->retobj_var);
5330 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5331 mono_mb_emit_byte (mb, CEE_CONV_I);
5332 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5333 mono_mb_emit_stloc (mb, 1);
5334 mono_mb_emit_ldloc (mb, 1);
5335 mono_mb_emit_stloc (mb, m->retobj_var);
5337 /* emit valuetype conversion code */
5338 emit_struct_conv (mb, klass, FALSE);
5342 g_assert_not_reached ();
5349 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5350 MonoMarshalSpec *spec,
5351 int conv_arg, MonoType **conv_arg_type,
5352 MarshalAction action)
5356 case MARSHAL_ACTION_CONV_IN:
5357 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5359 case MARSHAL_ACTION_MANAGED_CONV_IN:
5360 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5364 MonoMethodBuilder *mb = m->mb;
5365 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5366 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5370 case MARSHAL_ACTION_CONV_IN:
5371 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5372 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5375 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5378 mono_mb_emit_ldarg (mb, argnum);
5379 mono_mb_emit_byte (mb, CEE_LDIND_I);
5381 mono_mb_emit_ldarg (mb, argnum);
5384 if (conv == MONO_MARSHAL_CONV_INVALID) {
5385 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5386 mono_mb_emit_exception_marshal_directive (mb, msg);
5388 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5390 mono_mb_emit_stloc (mb, conv_arg);
5394 case MARSHAL_ACTION_CONV_OUT:
5395 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5396 if (conv == MONO_MARSHAL_CONV_INVALID) {
5397 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5398 mono_mb_emit_exception_marshal_directive (mb, msg);
5402 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5403 static MonoMethod *m;
5406 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5411 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5412 mono_mb_emit_exception_marshal_directive (mb, msg);
5417 * Have to allocate a new string with the same length as the original, and
5418 * copy the contents of the buffer pointed to by CONV_ARG into it.
5420 g_assert (t->byref);
5421 mono_mb_emit_ldarg (mb, argnum);
5422 mono_mb_emit_ldloc (mb, conv_arg);
5423 mono_mb_emit_ldarg (mb, argnum);
5424 mono_mb_emit_byte (mb, CEE_LDIND_I);
5425 mono_mb_emit_managed_call (mb, m, NULL);
5426 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5427 mono_mb_emit_byte (mb, CEE_STIND_REF);
5428 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5430 mono_mb_emit_ldarg (mb, argnum);
5431 mono_mb_emit_ldloc (mb, conv_arg);
5432 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5433 mono_mb_emit_byte (mb, stind_op);
5438 mono_mb_emit_ldloc (mb, conv_arg);
5439 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5440 mono_mb_emit_icall (mb, mono_free_bstr);
5442 mono_mb_emit_icall (mb, mono_marshal_free);
5446 case MARSHAL_ACTION_PUSH:
5447 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5448 mono_mb_emit_ldloc_addr (mb, conv_arg);
5450 mono_mb_emit_ldloc (mb, conv_arg);
5453 case MARSHAL_ACTION_CONV_RESULT:
5454 mono_mb_emit_stloc (mb, 0);
5456 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5457 if (conv == MONO_MARSHAL_CONV_INVALID) {
5458 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5459 mono_mb_emit_exception_marshal_directive (mb, msg);
5463 mono_mb_emit_ldloc (mb, 0);
5464 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5465 mono_mb_emit_stloc (mb, 3);
5467 /* free the string */
5468 mono_mb_emit_ldloc (mb, 0);
5469 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5470 mono_mb_emit_icall (mb, mono_free_bstr);
5472 mono_mb_emit_icall (mb, mono_marshal_free);
5475 case MARSHAL_ACTION_MANAGED_CONV_IN:
5476 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5478 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5481 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5485 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5486 if (conv == MONO_MARSHAL_CONV_INVALID) {
5487 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5488 mono_mb_emit_exception_marshal_directive (mb, msg);
5492 mono_mb_emit_ldarg (mb, argnum);
5494 mono_mb_emit_byte (mb, CEE_LDIND_I);
5495 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5496 mono_mb_emit_stloc (mb, conv_arg);
5499 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5503 mono_mb_emit_ldarg (mb, argnum);
5504 mono_mb_emit_ldloc (mb, conv_arg);
5505 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5506 mono_mb_emit_byte (mb, stind_op);
5511 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5512 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5513 /* We need to make a copy so the caller is able to free it */
5514 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5516 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5517 mono_mb_emit_stloc (mb, 3);
5521 g_assert_not_reached ();
5529 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5530 MonoMarshalSpec *spec, int conv_arg,
5531 MonoType **conv_arg_type, MarshalAction action)
5534 if (action == MARSHAL_ACTION_CONV_IN)
5535 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5537 MonoMethodBuilder *mb = m->mb;
5540 case MARSHAL_ACTION_CONV_IN: {
5541 MonoType *intptr_type;
5542 int dar_release_slot, pos;
5544 intptr_type = &mono_defaults.int_class->byval_arg;
5545 conv_arg = mono_mb_add_local (mb, intptr_type);
5546 *conv_arg_type = intptr_type;
5548 if (!sh_dangerous_add_ref)
5549 init_safe_handle ();
5551 mono_mb_emit_ldarg (mb, argnum);
5552 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5553 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5555 mono_mb_patch_branch (mb, pos);
5558 * My tests in show that ref SafeHandles are not really
5559 * passed as ref objects. Instead a NULL is passed as the
5562 mono_mb_emit_icon (mb, 0);
5563 mono_mb_emit_stloc (mb, conv_arg);
5567 /* Create local to hold the ref parameter to DangerousAddRef */
5568 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5570 /* set release = false; */
5571 mono_mb_emit_icon (mb, 0);
5572 mono_mb_emit_stloc (mb, dar_release_slot);
5574 /* safehandle.DangerousAddRef (ref release) */
5575 mono_mb_emit_ldarg (mb, argnum);
5576 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5577 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5579 /* Pull the handle field from SafeHandle */
5580 mono_mb_emit_ldarg (mb, argnum);
5581 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5582 mono_mb_emit_byte (mb, CEE_LDIND_I);
5583 mono_mb_emit_stloc (mb, conv_arg);
5588 case MARSHAL_ACTION_PUSH:
5590 mono_mb_emit_ldloc_addr (mb, conv_arg);
5592 mono_mb_emit_ldloc (mb, conv_arg);
5595 case MARSHAL_ACTION_CONV_OUT: {
5596 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5597 int dar_release_slot = conv_arg + 1;
5600 if (!sh_dangerous_release)
5601 init_safe_handle ();
5607 * My tests indicate that ref SafeHandles parameters are not actually
5608 * passed by ref, but instead a new Handle is created regardless of
5609 * whether a change happens in the unmanaged side.
5611 * Also, the Handle is created before calling into unmanaged code,
5612 * but we do not support that mechanism (getting to the original
5613 * handle) and it makes no difference where we create this
5615 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5617 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5620 /* refval = new SafeHandleDerived ()*/
5621 mono_mb_emit_ldarg (mb, argnum);
5622 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5623 mono_mb_emit_byte (mb, CEE_STIND_REF);
5625 /* refval.handle = returned_handle */
5626 mono_mb_emit_ldarg (mb, argnum);
5627 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5628 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5629 mono_mb_emit_ldloc (mb, conv_arg);
5630 mono_mb_emit_byte (mb, CEE_STIND_I);
5632 mono_mb_emit_ldloc (mb, dar_release_slot);
5633 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5634 mono_mb_emit_ldarg (mb, argnum);
5635 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5636 mono_mb_patch_branch (mb, label_next);
5641 case MARSHAL_ACTION_CONV_RESULT: {
5642 MonoMethod *ctor = NULL;
5643 int intptr_handle_slot;
5645 if (mono_class_is_abstract (t->data.klass)) {
5646 mono_mb_emit_byte (mb, CEE_POP);
5647 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5651 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5653 mono_mb_emit_byte (mb, CEE_POP);
5654 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5657 /* Store the IntPtr results into a local */
5658 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5659 mono_mb_emit_stloc (mb, intptr_handle_slot);
5661 /* Create return value */
5662 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5663 mono_mb_emit_stloc (mb, 3);
5665 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5666 mono_mb_emit_ldloc (mb, 3);
5667 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5668 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5669 mono_mb_emit_byte (mb, CEE_STIND_I);
5673 case MARSHAL_ACTION_MANAGED_CONV_IN:
5674 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5677 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5678 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5681 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5682 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5685 printf ("Unhandled case for MarshalAction: %d\n", action);
5693 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5694 MonoMarshalSpec *spec, int conv_arg,
5695 MonoType **conv_arg_type, MarshalAction action)
5698 if (action == MARSHAL_ACTION_CONV_IN)
5699 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5701 MonoMethodBuilder *mb = m->mb;
5704 case MARSHAL_ACTION_CONV_IN: {
5705 MonoType *intptr_type;
5707 intptr_type = &mono_defaults.int_class->byval_arg;
5708 conv_arg = mono_mb_add_local (mb, intptr_type);
5709 *conv_arg_type = intptr_type;
5712 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5713 mono_mb_emit_exception_marshal_directive (mb, msg);
5716 mono_mb_emit_ldarg_addr (mb, argnum);
5717 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5718 mono_mb_emit_byte (mb, CEE_ADD);
5719 mono_mb_emit_byte (mb, CEE_LDIND_I);
5720 mono_mb_emit_stloc (mb, conv_arg);
5724 case MARSHAL_ACTION_PUSH:
5725 mono_mb_emit_ldloc (mb, conv_arg);
5728 case MARSHAL_ACTION_CONV_OUT: {
5729 /* no resource release required */
5733 case MARSHAL_ACTION_CONV_RESULT: {
5734 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5735 mono_mb_emit_exception_marshal_directive (mb, msg);
5739 case MARSHAL_ACTION_MANAGED_CONV_IN:
5740 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5743 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5744 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5747 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5748 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5751 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5759 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5760 MonoMarshalSpec *spec,
5761 int conv_arg, MonoType **conv_arg_type,
5762 MarshalAction action)
5765 if (action == MARSHAL_ACTION_CONV_IN)
5766 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5768 MonoMethodBuilder *mb = m->mb;
5769 MonoClass *klass = mono_class_from_mono_type (t);
5773 case MARSHAL_ACTION_CONV_IN:
5774 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5775 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5777 m->orig_conv_args [argnum] = 0;
5779 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5780 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5781 mono_mb_emit_exception_marshal_directive (mb, msg);
5785 if (klass->delegate) {
5787 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5788 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5789 mono_mb_emit_exception_marshal_directive (mb, msg);
5791 mono_mb_emit_byte (mb, CEE_LDNULL);
5792 mono_mb_emit_stloc (mb, conv_arg);
5794 mono_mb_emit_ldarg (mb, argnum);
5795 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5796 mono_mb_emit_stloc (mb, conv_arg);
5798 } else if (klass == mono_defaults.stringbuilder_class) {
5799 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5800 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5804 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5805 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5806 mono_mb_emit_exception_marshal_directive (mb, msg);
5812 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5815 if (conv == MONO_MARSHAL_CONV_INVALID) {
5816 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5817 mono_mb_emit_exception_marshal_directive (mb, msg);
5821 mono_mb_emit_ldarg (mb, argnum);
5823 mono_mb_emit_byte (mb, CEE_LDIND_I);
5825 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5826 mono_mb_emit_stloc (mb, conv_arg);
5827 } else if (klass->blittable) {
5828 mono_mb_emit_byte (mb, CEE_LDNULL);
5829 mono_mb_emit_stloc (mb, conv_arg);
5831 mono_mb_emit_ldarg (mb, argnum);
5832 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5834 mono_mb_emit_ldarg (mb, argnum);
5835 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5836 mono_mb_emit_stloc (mb, conv_arg);
5838 mono_mb_patch_branch (mb, pos);
5841 mono_mb_emit_byte (mb, CEE_LDNULL);
5842 mono_mb_emit_stloc (mb, conv_arg);
5845 /* we dont need any conversions for out parameters */
5846 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5849 mono_mb_emit_ldarg (mb, argnum);
5850 mono_mb_emit_byte (mb, CEE_LDIND_I);
5853 mono_mb_emit_ldarg (mb, argnum);
5854 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5855 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5858 /* store the address of the source into local variable 0 */
5859 mono_mb_emit_stloc (mb, 0);
5860 mono_mb_emit_ldloc (mb, 0);
5861 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5863 /* allocate space for the native struct and store the address */
5864 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5865 mono_mb_emit_byte (mb, CEE_PREFIX1);
5866 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5867 mono_mb_emit_stloc (mb, conv_arg);
5870 /* Need to store the original buffer so we can free it later */
5871 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5872 mono_mb_emit_ldloc (mb, conv_arg);
5873 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5876 /* set the src_ptr */
5877 mono_mb_emit_ldloc (mb, 0);
5878 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5879 mono_mb_emit_stloc (mb, 0);
5882 mono_mb_emit_ldloc (mb, conv_arg);
5883 mono_mb_emit_stloc (mb, 1);
5885 /* emit valuetype conversion code */
5886 emit_struct_conv (mb, klass, FALSE);
5888 mono_mb_patch_branch (mb, pos);
5892 case MARSHAL_ACTION_CONV_OUT:
5893 if (klass == mono_defaults.stringbuilder_class) {
5895 MonoMarshalNative encoding;
5896 MonoMarshalConv conv;
5898 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5899 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5901 g_assert (encoding != -1);
5904 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5908 mono_mb_emit_ldarg (mb, argnum);
5909 mono_mb_emit_ldloc (mb, conv_arg);
5912 case MONO_NATIVE_LPWSTR:
5913 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5915 case MONO_NATIVE_LPSTR:
5916 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5918 case MONO_NATIVE_UTF8STR:
5919 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5922 g_assert_not_reached ();
5925 mono_mb_emit_byte (mb, CEE_STIND_REF);
5927 mono_mb_emit_ldarg (mb, argnum);
5928 mono_mb_emit_ldloc (mb, conv_arg);
5930 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5934 mono_mb_emit_ldloc (mb, conv_arg);
5935 mono_mb_emit_icall (mb, mono_marshal_free);
5940 if (klass->delegate) {
5942 mono_mb_emit_ldarg (mb, argnum);
5943 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5944 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5945 mono_mb_emit_ldloc (mb, conv_arg);
5946 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5947 mono_mb_emit_byte (mb, CEE_STIND_REF);
5952 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5953 /* allocate a new object */
5954 mono_mb_emit_ldarg (mb, argnum);
5955 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5956 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5957 mono_mb_emit_byte (mb, CEE_STIND_REF);
5960 /* dst = *argument */
5961 mono_mb_emit_ldarg (mb, argnum);
5964 mono_mb_emit_byte (mb, CEE_LDIND_I);
5966 mono_mb_emit_stloc (mb, 1);
5968 mono_mb_emit_ldloc (mb, 1);
5969 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5971 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5972 mono_mb_emit_ldloc (mb, 1);
5973 mono_mb_emit_icon (mb, sizeof (MonoObject));
5974 mono_mb_emit_byte (mb, CEE_ADD);
5975 mono_mb_emit_stloc (mb, 1);
5977 /* src = tmp_locals [i] */
5978 mono_mb_emit_ldloc (mb, conv_arg);
5979 mono_mb_emit_stloc (mb, 0);
5981 /* emit valuetype conversion code */
5982 emit_struct_conv (mb, klass, TRUE);
5984 /* Free the structure returned by the native code */
5985 emit_struct_free (mb, klass, conv_arg);
5987 if (m->orig_conv_args [argnum]) {
5989 * If the native function changed the pointer, then free
5990 * the original structure plus the new pointer.
5992 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5993 mono_mb_emit_ldloc (mb, conv_arg);
5994 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5996 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5997 g_assert (m->orig_conv_args [argnum]);
5999 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6002 mono_mb_emit_ldloc (mb, conv_arg);
6003 mono_mb_emit_icall (mb, mono_marshal_free);
6005 mono_mb_patch_branch (mb, pos2);
6009 /* Free the original structure passed to native code */
6010 emit_struct_free (mb, klass, conv_arg);
6012 mono_mb_patch_branch (mb, pos);
6015 case MARSHAL_ACTION_PUSH:
6017 mono_mb_emit_ldloc_addr (mb, conv_arg);
6019 mono_mb_emit_ldloc (mb, conv_arg);
6022 case MARSHAL_ACTION_CONV_RESULT:
6023 if (klass->delegate) {
6024 g_assert (!t->byref);
6025 mono_mb_emit_stloc (mb, 0);
6026 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6027 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6028 mono_mb_emit_ldloc (mb, 0);
6029 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6030 mono_mb_emit_stloc (mb, 3);
6031 } else if (klass == mono_defaults.stringbuilder_class){
6035 mono_mb_emit_stloc (mb, 0);
6037 /* Make a copy since emit_conv modifies local 0 */
6038 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6039 mono_mb_emit_ldloc (mb, 0);
6040 mono_mb_emit_stloc (mb, loc);
6042 mono_mb_emit_byte (mb, CEE_LDNULL);
6043 mono_mb_emit_stloc (mb, 3);
6045 mono_mb_emit_ldloc (mb, 0);
6046 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6048 /* allocate result object */
6050 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6051 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6052 mono_mb_emit_stloc (mb, 3);
6056 mono_mb_emit_ldloc (mb, 3);
6057 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6058 mono_mb_emit_stloc (mb, 1);
6060 /* emit conversion code */
6061 emit_struct_conv (mb, klass, TRUE);
6063 emit_struct_free (mb, klass, loc);
6065 /* Free the pointer allocated by unmanaged code */
6066 mono_mb_emit_ldloc (mb, loc);
6067 mono_mb_emit_icall (mb, mono_marshal_free);
6068 mono_mb_patch_branch (mb, pos);
6072 case MARSHAL_ACTION_MANAGED_CONV_IN:
6073 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6075 if (klass->delegate) {
6076 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6077 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6078 mono_mb_emit_ldarg (mb, argnum);
6080 mono_mb_emit_byte (mb, CEE_LDIND_I);
6081 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6082 mono_mb_emit_stloc (mb, conv_arg);
6086 if (klass == mono_defaults.stringbuilder_class) {
6087 MonoMarshalNative encoding;
6089 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6092 g_assert (encoding == MONO_NATIVE_LPSTR || encoding == MONO_NATIVE_UTF8STR);
6094 g_assert (!t->byref);
6095 g_assert (encoding != -1);
6097 mono_mb_emit_ldarg (mb, argnum);
6098 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6099 mono_mb_emit_stloc (mb, conv_arg);
6103 /* The class can not have an automatic layout */
6104 if (mono_class_is_auto_layout (klass)) {
6105 mono_mb_emit_auto_layout_exception (mb, klass);
6109 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6110 mono_mb_emit_byte (mb, CEE_LDNULL);
6111 mono_mb_emit_stloc (mb, conv_arg);
6116 mono_mb_emit_ldarg (mb, argnum);
6120 /* Check for NULL and raise an exception */
6121 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6123 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6125 mono_mb_patch_branch (mb, pos2);
6126 mono_mb_emit_ldarg (mb, argnum);
6127 mono_mb_emit_byte (mb, CEE_LDIND_I);
6130 mono_mb_emit_stloc (mb, 0);
6132 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6133 mono_mb_emit_stloc (mb, conv_arg);
6135 mono_mb_emit_ldloc (mb, 0);
6136 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6138 /* Create and set dst */
6139 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6140 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6141 mono_mb_emit_stloc (mb, conv_arg);
6142 mono_mb_emit_ldloc (mb, conv_arg);
6143 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6144 mono_mb_emit_stloc (mb, 1);
6146 /* emit valuetype conversion code */
6147 emit_struct_conv (mb, klass, TRUE);
6149 mono_mb_patch_branch (mb, pos);
6152 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6153 if (klass->delegate) {
6156 mono_mb_emit_ldarg (mb, argnum);
6157 mono_mb_emit_ldloc (mb, conv_arg);
6158 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
6159 mono_mb_emit_byte (mb, stind_op);
6165 /* Check for null */
6166 mono_mb_emit_ldloc (mb, conv_arg);
6167 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6168 mono_mb_emit_ldarg (mb, argnum);
6169 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6170 mono_mb_emit_byte (mb, CEE_STIND_REF);
6171 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6173 mono_mb_patch_branch (mb, pos);
6176 mono_mb_emit_ldloc (mb, conv_arg);
6177 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6178 mono_mb_emit_stloc (mb, 0);
6180 /* Allocate and set dest */
6181 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6182 mono_mb_emit_byte (mb, CEE_CONV_I);
6183 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6184 mono_mb_emit_stloc (mb, 1);
6186 /* Update argument pointer */
6187 mono_mb_emit_ldarg (mb, argnum);
6188 mono_mb_emit_ldloc (mb, 1);
6189 mono_mb_emit_byte (mb, CEE_STIND_I);
6191 /* emit valuetype conversion code */
6192 emit_struct_conv (mb, klass, FALSE);
6194 mono_mb_patch_branch (mb, pos2);
6195 } else if (klass == mono_defaults.stringbuilder_class) {
6196 // FIXME: What to do here ?
6198 /* byval [Out] marshalling */
6200 /* FIXME: Handle null */
6203 mono_mb_emit_ldloc (mb, conv_arg);
6204 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6205 mono_mb_emit_stloc (mb, 0);
6208 mono_mb_emit_ldarg (mb, argnum);
6209 mono_mb_emit_stloc (mb, 1);
6211 /* emit valuetype conversion code */
6212 emit_struct_conv (mb, klass, FALSE);
6216 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6217 if (klass->delegate) {
6218 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6219 mono_mb_emit_stloc (mb, 3);
6223 /* The class can not have an automatic layout */
6224 if (mono_class_is_auto_layout (klass)) {
6225 mono_mb_emit_auto_layout_exception (mb, klass);
6229 mono_mb_emit_stloc (mb, 0);
6230 /* Check for null */
6231 mono_mb_emit_ldloc (mb, 0);
6232 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6233 mono_mb_emit_byte (mb, CEE_LDNULL);
6234 mono_mb_emit_stloc (mb, 3);
6235 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6237 mono_mb_patch_branch (mb, pos);
6240 mono_mb_emit_ldloc (mb, 0);
6241 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6242 mono_mb_emit_stloc (mb, 0);
6244 /* Allocate and set dest */
6245 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6246 mono_mb_emit_byte (mb, CEE_CONV_I);
6247 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6248 mono_mb_emit_byte (mb, CEE_DUP);
6249 mono_mb_emit_stloc (mb, 1);
6250 mono_mb_emit_stloc (mb, 3);
6252 emit_struct_conv (mb, klass, FALSE);
6254 mono_mb_patch_branch (mb, pos2);
6258 g_assert_not_reached ();
6269 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6270 MonoMarshalSpec *spec,
6271 int conv_arg, MonoType **conv_arg_type,
6272 MarshalAction action)
6274 MonoMethodBuilder *mb = m->mb;
6275 static MonoMethod *get_object_for_native_variant = NULL;
6276 static MonoMethod *get_native_variant_for_object = NULL;
6278 if (!get_object_for_native_variant)
6279 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6280 g_assert (get_object_for_native_variant);
6282 if (!get_native_variant_for_object)
6283 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6284 g_assert (get_native_variant_for_object);
6287 case MARSHAL_ACTION_CONV_IN: {
6288 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6291 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6293 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6295 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6298 mono_mb_emit_ldarg (mb, argnum);
6300 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6301 mono_mb_emit_ldloc_addr (mb, conv_arg);
6302 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6306 case MARSHAL_ACTION_CONV_OUT: {
6307 static MonoMethod *variant_clear = NULL;
6310 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6311 g_assert (variant_clear);
6314 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6315 mono_mb_emit_ldarg (mb, argnum);
6316 mono_mb_emit_ldloc_addr (mb, conv_arg);
6317 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6318 mono_mb_emit_byte (mb, CEE_STIND_REF);
6321 mono_mb_emit_ldloc_addr (mb, conv_arg);
6322 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6326 case MARSHAL_ACTION_PUSH:
6328 mono_mb_emit_ldloc_addr (mb, conv_arg);
6330 mono_mb_emit_ldloc (mb, conv_arg);
6333 case MARSHAL_ACTION_CONV_RESULT: {
6334 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6335 mono_mb_emit_exception_marshal_directive (mb, msg);
6339 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6340 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6343 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6345 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6347 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6351 mono_mb_emit_ldarg (mb, argnum);
6353 mono_mb_emit_ldarg_addr (mb, argnum);
6354 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6355 mono_mb_emit_stloc (mb, conv_arg);
6359 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6360 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6361 mono_mb_emit_ldloc (mb, conv_arg);
6362 mono_mb_emit_ldarg (mb, argnum);
6363 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6368 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6369 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6370 mono_mb_emit_exception_marshal_directive (mb, msg);
6375 g_assert_not_reached ();
6381 #endif /* DISABLE_COM */
6382 #endif /* DISABLE_JIT */
6385 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6387 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6388 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6390 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6392 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6404 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6405 MonoMarshalSpec *spec,
6406 int conv_arg, MonoType **conv_arg_type,
6407 MarshalAction action)
6411 case MARSHAL_ACTION_CONV_IN:
6412 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6414 case MARSHAL_ACTION_MANAGED_CONV_IN:
6415 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6419 MonoMethodBuilder *mb = m->mb;
6420 MonoClass *klass = mono_class_from_mono_type (t);
6421 gboolean need_convert, need_free;
6422 MonoMarshalNative encoding;
6424 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6427 case MARSHAL_ACTION_CONV_IN:
6428 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6429 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6431 if (klass->element_class->blittable) {
6432 mono_mb_emit_ldarg (mb, argnum);
6434 mono_mb_emit_byte (mb, CEE_LDIND_I);
6435 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6436 mono_mb_emit_stloc (mb, conv_arg);
6439 guint32 label1, label2, label3;
6440 int index_var, src_var, dest_ptr, esize;
6441 MonoMarshalConv conv;
6442 gboolean is_string = FALSE;
6444 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6446 eklass = klass->element_class;
6448 if (eklass == mono_defaults.string_class) {
6450 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6452 else if (eklass == mono_defaults.stringbuilder_class) {
6454 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6457 conv = MONO_MARSHAL_CONV_INVALID;
6459 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6460 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6461 mono_mb_emit_exception_marshal_directive (mb, msg);
6465 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6466 mono_mb_emit_ldarg (mb, argnum);
6468 mono_mb_emit_byte (mb, CEE_LDIND_I);
6469 mono_mb_emit_stloc (mb, src_var);
6472 mono_mb_emit_ldloc (mb, src_var);
6473 mono_mb_emit_stloc (mb, conv_arg);
6474 mono_mb_emit_ldloc (mb, src_var);
6475 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6478 esize = sizeof (gpointer);
6479 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6480 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6482 esize = mono_class_native_size (eklass, NULL);
6484 /* allocate space for the native struct and store the address */
6485 mono_mb_emit_icon (mb, esize);
6486 mono_mb_emit_ldloc (mb, src_var);
6487 mono_mb_emit_byte (mb, CEE_LDLEN);
6489 if (eklass == mono_defaults.string_class) {
6490 /* Make the array bigger for the terminating null */
6491 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6492 mono_mb_emit_byte (mb, CEE_ADD);
6494 mono_mb_emit_byte (mb, CEE_MUL);
6495 mono_mb_emit_byte (mb, CEE_PREFIX1);
6496 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6497 mono_mb_emit_stloc (mb, conv_arg);
6499 mono_mb_emit_ldloc (mb, conv_arg);
6500 mono_mb_emit_stloc (mb, dest_ptr);
6502 /* Emit marshalling loop */
6503 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6504 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6505 mono_mb_emit_stloc (mb, index_var);
6506 label2 = mono_mb_get_label (mb);
6507 mono_mb_emit_ldloc (mb, index_var);
6508 mono_mb_emit_ldloc (mb, src_var);
6509 mono_mb_emit_byte (mb, CEE_LDLEN);
6510 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6512 /* Emit marshalling code */
6516 mono_mb_emit_ldloc (mb, dest_ptr);
6517 mono_mb_emit_ldloc (mb, src_var);
6518 mono_mb_emit_ldloc (mb, index_var);
6519 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6520 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6521 mono_mb_emit_byte (mb, stind_op);
6523 /* set the src_ptr */
6524 mono_mb_emit_ldloc (mb, src_var);
6525 mono_mb_emit_ldloc (mb, index_var);
6526 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6527 mono_mb_emit_stloc (mb, 0);
6530 mono_mb_emit_ldloc (mb, dest_ptr);
6531 mono_mb_emit_stloc (mb, 1);
6533 /* emit valuetype conversion code */
6534 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6537 mono_mb_emit_add_to_local (mb, index_var, 1);
6538 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6540 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6542 mono_mb_patch_branch (mb, label3);
6544 if (eklass == mono_defaults.string_class) {
6545 /* Null terminate */
6546 mono_mb_emit_ldloc (mb, dest_ptr);
6547 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6548 mono_mb_emit_byte (mb, CEE_STIND_REF);
6551 mono_mb_patch_branch (mb, label1);
6556 case MARSHAL_ACTION_CONV_OUT:
6557 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6558 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);
6559 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6562 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6563 int param_num = spec->data.array_data.param_num;
6564 MonoType *param_type;
6566 param_type = m->sig->params [param_num];
6568 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6569 char *msg = g_strdup ("Not implemented.");
6570 mono_mb_emit_exception_marshal_directive (mb, msg);
6575 mono_mb_emit_ldarg (mb, argnum);
6577 /* Create the managed array */
6578 mono_mb_emit_ldarg (mb, param_num);
6579 if (m->sig->params [param_num]->byref)
6580 // FIXME: Support other types
6581 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6582 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6583 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6584 /* Store into argument */
6585 mono_mb_emit_byte (mb, CEE_STIND_REF);
6589 if (need_convert || need_free) {
6590 /* FIXME: Optimize blittable case */
6592 guint32 label1, label2, label3;
6593 int index_var, src_ptr, loc, esize;
6595 eklass = klass->element_class;
6596 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6597 esize = sizeof (gpointer);
6598 else if (eklass == mono_defaults.char_class)
6599 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6601 esize = mono_class_native_size (eklass, NULL);
6602 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6603 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6606 mono_mb_emit_ldarg (mb, argnum);
6608 mono_mb_emit_byte (mb, CEE_LDIND_I);
6609 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6611 mono_mb_emit_ldloc (mb, conv_arg);
6612 mono_mb_emit_stloc (mb, src_ptr);
6614 /* Emit marshalling loop */
6615 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6616 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6617 mono_mb_emit_stloc (mb, index_var);
6618 label2 = mono_mb_get_label (mb);
6619 mono_mb_emit_ldloc (mb, index_var);
6620 mono_mb_emit_ldarg (mb, argnum);
6622 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6623 mono_mb_emit_byte (mb, CEE_LDLEN);
6624 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6626 /* Emit marshalling code */
6628 if (eklass == mono_defaults.stringbuilder_class) {
6629 gboolean need_free2;
6630 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6632 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6635 mono_mb_emit_ldarg (mb, argnum);
6637 mono_mb_emit_byte (mb, CEE_LDIND_I);
6638 mono_mb_emit_ldloc (mb, index_var);
6639 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6642 mono_mb_emit_ldloc (mb, src_ptr);
6643 mono_mb_emit_byte (mb, CEE_LDIND_I);
6645 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6649 mono_mb_emit_ldloc (mb, src_ptr);
6650 mono_mb_emit_byte (mb, CEE_LDIND_I);
6652 mono_mb_emit_icall (mb, mono_marshal_free);
6655 else if (eklass == mono_defaults.string_class) {
6658 mono_mb_emit_ldloc (mb, src_ptr);
6659 mono_mb_emit_byte (mb, CEE_LDIND_I);
6661 mono_mb_emit_icall (mb, mono_marshal_free);
6666 /* set the src_ptr */
6667 mono_mb_emit_ldloc (mb, src_ptr);
6668 mono_mb_emit_stloc (mb, 0);
6671 mono_mb_emit_ldarg (mb, argnum);
6673 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6674 mono_mb_emit_ldloc (mb, index_var);
6675 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6676 mono_mb_emit_stloc (mb, 1);
6678 /* emit valuetype conversion code */
6679 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6683 mono_mb_emit_ldloc (mb, src_ptr);
6684 mono_mb_emit_stloc (mb, loc);
6685 mono_mb_emit_ldloc (mb, loc);
6687 emit_struct_free (mb, eklass, loc);
6691 mono_mb_emit_add_to_local (mb, index_var, 1);
6692 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6694 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6696 mono_mb_patch_branch (mb, label1);
6697 mono_mb_patch_branch (mb, label3);
6700 if (klass->element_class->blittable) {
6701 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6703 mono_mb_emit_ldarg (mb, argnum);
6705 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6706 mono_mb_emit_ldloc (mb, conv_arg);
6707 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6712 case MARSHAL_ACTION_PUSH:
6714 mono_mb_emit_ldloc_addr (mb, conv_arg);
6716 mono_mb_emit_ldloc (mb, conv_arg);
6719 case MARSHAL_ACTION_CONV_RESULT:
6720 /* fixme: we need conversions here */
6721 mono_mb_emit_stloc (mb, 3);
6724 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6726 guint32 label1, label2, label3;
6727 int index_var, src_ptr, esize, param_num, num_elem;
6728 MonoMarshalConv conv;
6729 gboolean is_string = FALSE;
6731 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6732 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6735 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6736 mono_mb_emit_exception_marshal_directive (mb, msg);
6740 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6741 mono_mb_emit_exception_marshal_directive (mb, msg);
6744 if (spec->native != MONO_NATIVE_LPARRAY) {
6745 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6746 mono_mb_emit_exception_marshal_directive (mb, msg);
6750 /* FIXME: t is from the method which is wrapped, not the delegate type */
6751 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6753 param_num = spec->data.array_data.param_num;
6754 num_elem = spec->data.array_data.num_elem;
6755 if (spec->data.array_data.elem_mult == 0)
6756 /* param_num is not specified */
6759 if (param_num == -1) {
6760 if (num_elem <= 0) {
6761 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6762 mono_mb_emit_exception_marshal_directive (mb, msg);
6767 /* FIXME: Optimize blittable case */
6769 eklass = klass->element_class;
6770 if (eklass == mono_defaults.string_class) {
6772 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6774 else if (eklass == mono_defaults.stringbuilder_class) {
6776 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6779 conv = MONO_MARSHAL_CONV_INVALID;
6781 mono_marshal_load_type_info (eklass);
6784 esize = sizeof (gpointer);
6786 esize = mono_class_native_size (eklass, NULL);
6787 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6789 mono_mb_emit_byte (mb, CEE_LDNULL);
6790 mono_mb_emit_stloc (mb, conv_arg);
6792 /* Check param index */
6793 if (param_num != -1) {
6794 if (param_num >= m->sig->param_count) {
6795 char *msg = g_strdup ("Array size control parameter index is out of range.");
6796 mono_mb_emit_exception_marshal_directive (mb, msg);
6799 switch (m->sig->params [param_num]->type) {
6812 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6813 mono_mb_emit_exception_marshal_directive (mb, msg);
6820 mono_mb_emit_ldarg (mb, argnum);
6821 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6823 mono_mb_emit_ldarg (mb, argnum);
6824 mono_mb_emit_stloc (mb, src_ptr);
6826 /* Create managed array */
6828 * The LPArray marshalling spec says that sometimes param_num starts
6829 * from 1, sometimes it starts from 0. But MS seems to allways start
6833 if (param_num == -1) {
6834 mono_mb_emit_icon (mb, num_elem);
6836 mono_mb_emit_ldarg (mb, param_num);
6838 mono_mb_emit_icon (mb, num_elem);
6839 mono_mb_emit_byte (mb, CEE_ADD);
6841 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6844 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6845 mono_mb_emit_stloc (mb, conv_arg);
6847 if (eklass->blittable) {
6848 mono_mb_emit_ldloc (mb, conv_arg);
6849 mono_mb_emit_byte (mb, CEE_CONV_I);
6850 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6851 mono_mb_emit_byte (mb, CEE_ADD);
6852 mono_mb_emit_ldarg (mb, argnum);
6853 mono_mb_emit_ldloc (mb, conv_arg);
6854 mono_mb_emit_byte (mb, CEE_LDLEN);
6855 mono_mb_emit_icon (mb, esize);
6856 mono_mb_emit_byte (mb, CEE_MUL);
6857 mono_mb_emit_byte (mb, CEE_PREFIX1);
6858 mono_mb_emit_byte (mb, CEE_CPBLK);
6859 mono_mb_patch_branch (mb, label1);
6863 /* Emit marshalling loop */
6864 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6865 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6866 mono_mb_emit_stloc (mb, index_var);
6867 label2 = mono_mb_get_label (mb);
6868 mono_mb_emit_ldloc (mb, index_var);
6869 mono_mb_emit_ldloc (mb, conv_arg);
6870 mono_mb_emit_byte (mb, CEE_LDLEN);
6871 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6873 /* Emit marshalling code */
6875 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6877 mono_mb_emit_ldloc (mb, conv_arg);
6878 mono_mb_emit_ldloc (mb, index_var);
6880 mono_mb_emit_ldloc (mb, src_ptr);
6881 mono_mb_emit_byte (mb, CEE_LDIND_I);
6883 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6884 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6887 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6888 mono_mb_emit_exception_marshal_directive (mb, msg);
6892 mono_mb_emit_add_to_local (mb, index_var, 1);
6893 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6895 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6897 mono_mb_patch_branch (mb, label1);
6898 mono_mb_patch_branch (mb, label3);
6902 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6904 guint32 label1, label2, label3;
6905 int index_var, dest_ptr, esize, param_num, num_elem;
6906 MonoMarshalConv conv;
6907 gboolean is_string = FALSE;
6910 /* Already handled in CONV_IN */
6913 /* These are already checked in CONV_IN */
6914 g_assert (!t->byref);
6915 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6916 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6918 param_num = spec->data.array_data.param_num;
6919 num_elem = spec->data.array_data.num_elem;
6921 if (spec->data.array_data.elem_mult == 0)
6922 /* param_num is not specified */
6925 if (param_num == -1) {
6926 if (num_elem <= 0) {
6927 g_assert_not_reached ();
6931 /* FIXME: Optimize blittable case */
6933 eklass = klass->element_class;
6934 if (eklass == mono_defaults.string_class) {
6936 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6938 else if (eklass == mono_defaults.stringbuilder_class) {
6940 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6943 conv = MONO_MARSHAL_CONV_INVALID;
6945 mono_marshal_load_type_info (eklass);
6948 esize = sizeof (gpointer);
6950 esize = mono_class_native_size (eklass, NULL);
6952 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6955 mono_mb_emit_ldloc (mb, conv_arg);
6956 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6958 mono_mb_emit_ldarg (mb, argnum);
6959 mono_mb_emit_stloc (mb, dest_ptr);
6961 if (eklass->blittable) {
6963 mono_mb_emit_ldarg (mb, argnum);
6965 mono_mb_emit_ldloc (mb, conv_arg);
6966 mono_mb_emit_byte (mb, CEE_CONV_I);
6967 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6968 mono_mb_emit_byte (mb, CEE_ADD);
6970 mono_mb_emit_ldloc (mb, conv_arg);
6971 mono_mb_emit_byte (mb, CEE_LDLEN);
6972 mono_mb_emit_icon (mb, esize);
6973 mono_mb_emit_byte (mb, CEE_MUL);
6974 mono_mb_emit_byte (mb, CEE_PREFIX1);
6975 mono_mb_emit_byte (mb, CEE_CPBLK);
6979 /* Emit marshalling loop */
6980 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6981 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6982 mono_mb_emit_stloc (mb, index_var);
6983 label2 = mono_mb_get_label (mb);
6984 mono_mb_emit_ldloc (mb, index_var);
6985 mono_mb_emit_ldloc (mb, conv_arg);
6986 mono_mb_emit_byte (mb, CEE_LDLEN);
6987 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6989 /* Emit marshalling code */
6992 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6995 mono_mb_emit_ldloc (mb, dest_ptr);
6998 mono_mb_emit_ldloc (mb, conv_arg);
6999 mono_mb_emit_ldloc (mb, index_var);
7001 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7003 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7004 mono_mb_emit_byte (mb, stind_op);
7007 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7008 mono_mb_emit_exception_marshal_directive (mb, msg);
7012 mono_mb_emit_add_to_local (mb, index_var, 1);
7013 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7015 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7017 mono_mb_patch_branch (mb, label1);
7018 mono_mb_patch_branch (mb, label3);
7022 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7024 guint32 label1, label2, label3;
7025 int index_var, src, dest, esize;
7026 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
7027 gboolean is_string = FALSE;
7029 g_assert (!t->byref);
7031 eklass = klass->element_class;
7033 mono_marshal_load_type_info (eklass);
7035 if (eklass == mono_defaults.string_class) {
7037 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7040 g_assert_not_reached ();
7044 esize = sizeof (gpointer);
7045 else if (eklass == mono_defaults.char_class)
7046 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7048 esize = mono_class_native_size (eklass, NULL);
7050 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7051 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7053 mono_mb_emit_stloc (mb, src);
7054 mono_mb_emit_ldloc (mb, src);
7055 mono_mb_emit_stloc (mb, 3);
7057 /* Check for null */
7058 mono_mb_emit_ldloc (mb, src);
7059 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7061 /* Allocate native array */
7062 mono_mb_emit_icon (mb, esize);
7063 mono_mb_emit_ldloc (mb, src);
7064 mono_mb_emit_byte (mb, CEE_LDLEN);
7066 if (eklass == mono_defaults.string_class) {
7067 /* Make the array bigger for the terminating null */
7068 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7069 mono_mb_emit_byte (mb, CEE_ADD);
7071 mono_mb_emit_byte (mb, CEE_MUL);
7072 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
7073 mono_mb_emit_stloc (mb, dest);
7074 mono_mb_emit_ldloc (mb, dest);
7075 mono_mb_emit_stloc (mb, 3);
7077 /* Emit marshalling loop */
7078 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7079 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7080 mono_mb_emit_stloc (mb, index_var);
7081 label2 = mono_mb_get_label (mb);
7082 mono_mb_emit_ldloc (mb, index_var);
7083 mono_mb_emit_ldloc (mb, src);
7084 mono_mb_emit_byte (mb, CEE_LDLEN);
7085 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7087 /* Emit marshalling code */
7090 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7093 mono_mb_emit_ldloc (mb, dest);
7096 mono_mb_emit_ldloc (mb, src);
7097 mono_mb_emit_ldloc (mb, index_var);
7099 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7101 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7102 mono_mb_emit_byte (mb, stind_op);
7105 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7106 mono_mb_emit_exception_marshal_directive (mb, msg);
7110 mono_mb_emit_add_to_local (mb, index_var, 1);
7111 mono_mb_emit_add_to_local (mb, dest, esize);
7113 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7115 mono_mb_patch_branch (mb, label3);
7116 mono_mb_patch_branch (mb, label1);
7120 g_assert_not_reached ();
7127 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
7130 return &mono_defaults.int32_class->byval_arg;
7132 switch (spec->native) {
7133 case MONO_NATIVE_I1:
7134 case MONO_NATIVE_U1:
7135 return &mono_defaults.byte_class->byval_arg;
7136 case MONO_NATIVE_VARIANTBOOL:
7137 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
7138 return &mono_defaults.int16_class->byval_arg;
7139 case MONO_NATIVE_BOOLEAN:
7140 return &mono_defaults.int32_class->byval_arg;
7142 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7143 return &mono_defaults.int32_class->byval_arg;
7149 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
7151 MonoClass* conv_arg_class = mono_defaults.int32_class;
7153 switch (spec->native) {
7154 case MONO_NATIVE_I1:
7155 case MONO_NATIVE_U1:
7156 conv_arg_class = mono_defaults.byte_class;
7157 if (ldop) *ldop = CEE_LDIND_I1;
7159 case MONO_NATIVE_VARIANTBOOL:
7160 conv_arg_class = mono_defaults.int16_class;
7161 if (ldop) *ldop = CEE_LDIND_I2;
7163 case MONO_NATIVE_BOOLEAN:
7166 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7169 return conv_arg_class;
7173 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7174 MonoMarshalSpec *spec,
7175 int conv_arg, MonoType **conv_arg_type,
7176 MarshalAction action)
7180 case MARSHAL_ACTION_CONV_IN:
7182 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7184 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7187 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7188 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7190 *conv_arg_type = &conv_arg_class->this_arg;
7192 *conv_arg_type = &conv_arg_class->byval_arg;
7198 MonoMethodBuilder *mb = m->mb;
7201 case MARSHAL_ACTION_CONV_IN: {
7202 MonoType *local_type;
7204 guint8 ldc_op = CEE_LDC_I4_1;
7206 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7208 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7210 *conv_arg_type = local_type;
7211 conv_arg = mono_mb_add_local (mb, local_type);
7213 mono_mb_emit_ldarg (mb, argnum);
7215 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7216 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7217 mono_mb_emit_byte (mb, ldc_op);
7218 mono_mb_emit_stloc (mb, conv_arg);
7219 mono_mb_patch_branch (mb, label_false);
7224 case MARSHAL_ACTION_CONV_OUT:
7226 int label_false, label_end;
7230 mono_mb_emit_ldarg (mb, argnum);
7231 mono_mb_emit_ldloc (mb, conv_arg);
7233 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7234 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7236 label_end = mono_mb_emit_branch (mb, CEE_BR);
7237 mono_mb_patch_branch (mb, label_false);
7238 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7239 mono_mb_patch_branch (mb, label_end);
7241 mono_mb_emit_byte (mb, CEE_STIND_I1);
7245 case MARSHAL_ACTION_PUSH:
7247 mono_mb_emit_ldloc_addr (mb, conv_arg);
7249 mono_mb_emit_ldloc (mb, conv_arg);
7251 mono_mb_emit_ldarg (mb, argnum);
7254 case MARSHAL_ACTION_CONV_RESULT:
7255 /* maybe we need to make sure that it fits within 8 bits */
7256 mono_mb_emit_stloc (mb, 3);
7259 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7260 MonoClass* conv_arg_class = mono_defaults.int32_class;
7261 guint8 ldop = CEE_LDIND_I4;
7262 int label_null, label_false;
7264 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7265 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7268 *conv_arg_type = &conv_arg_class->this_arg;
7270 *conv_arg_type = &conv_arg_class->byval_arg;
7273 mono_mb_emit_ldarg (mb, argnum);
7277 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7278 mono_mb_emit_ldarg (mb, argnum);
7279 mono_mb_emit_byte (mb, ldop);
7283 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7284 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7285 mono_mb_emit_stloc (mb, conv_arg);
7286 mono_mb_patch_branch (mb, label_false);
7289 mono_mb_patch_branch (mb, label_null);
7293 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7294 guint8 stop = CEE_STIND_I4;
7295 guint8 ldc_op = CEE_LDC_I4_1;
7296 int label_null,label_false, label_end;;
7301 switch (spec->native) {
7302 case MONO_NATIVE_I1:
7303 case MONO_NATIVE_U1:
7304 stop = CEE_STIND_I1;
7306 case MONO_NATIVE_VARIANTBOOL:
7307 stop = CEE_STIND_I2;
7308 ldc_op = CEE_LDC_I4_M1;
7316 mono_mb_emit_ldarg (mb, argnum);
7317 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7319 mono_mb_emit_ldarg (mb, argnum);
7320 mono_mb_emit_ldloc (mb, conv_arg);
7322 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7323 mono_mb_emit_byte (mb, ldc_op);
7324 label_end = mono_mb_emit_branch (mb, CEE_BR);
7326 mono_mb_patch_branch (mb, label_false);
7327 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7328 mono_mb_patch_branch (mb, label_end);
7330 mono_mb_emit_byte (mb, stop);
7331 mono_mb_patch_branch (mb, label_null);
7336 g_assert_not_reached ();
7343 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7344 MonoMarshalSpec *spec, int conv_arg,
7345 MonoType **conv_arg_type, MarshalAction action)
7348 MonoMethodBuilder *mb = m->mb;
7351 case MARSHAL_ACTION_CONV_IN:
7352 /* MS seems to allow this in some cases, ie. bxc #158 */
7354 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7355 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7356 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7361 case MARSHAL_ACTION_PUSH:
7362 mono_mb_emit_ldarg (mb, argnum);
7365 case MARSHAL_ACTION_CONV_RESULT:
7366 /* no conversions necessary */
7367 mono_mb_emit_stloc (mb, 3);
7378 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7379 MonoMarshalSpec *spec, int conv_arg,
7380 MonoType **conv_arg_type, MarshalAction action)
7383 MonoMethodBuilder *mb = m->mb;
7386 case MARSHAL_ACTION_PUSH:
7387 /* fixme: dont know how to marshal that. We cant simply
7388 * convert it to a one byte UTF8 character, because an
7389 * unicode character may need more that one byte in UTF8 */
7390 mono_mb_emit_ldarg (mb, argnum);
7393 case MARSHAL_ACTION_CONV_RESULT:
7394 /* fixme: we need conversions here */
7395 mono_mb_emit_stloc (mb, 3);
7406 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7407 MonoMarshalSpec *spec, int conv_arg,
7408 MonoType **conv_arg_type, MarshalAction action)
7411 MonoMethodBuilder *mb = m->mb;
7414 case MARSHAL_ACTION_PUSH:
7415 mono_mb_emit_ldarg (mb, argnum);
7418 case MARSHAL_ACTION_CONV_RESULT:
7419 /* no conversions necessary */
7420 mono_mb_emit_stloc (mb, 3);
7431 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7432 MonoMarshalSpec *spec, int conv_arg,
7433 MonoType **conv_arg_type, MarshalAction action)
7435 /* Ensure that we have marshalling info for this param */
7436 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7438 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7439 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7441 if (spec && spec->native == MONO_NATIVE_ASANY)
7442 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7445 case MONO_TYPE_VALUETYPE:
7446 if (t->data.klass == mono_defaults.handleref_class)
7447 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7449 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7450 case MONO_TYPE_STRING:
7451 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7452 case MONO_TYPE_CLASS:
7453 case MONO_TYPE_OBJECT:
7454 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7455 if (spec && spec->native == MONO_NATIVE_STRUCT)
7456 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7459 #if !defined(DISABLE_COM)
7460 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7461 spec->native == MONO_NATIVE_IDISPATCH ||
7462 spec->native == MONO_NATIVE_INTERFACE))
7463 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7464 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7465 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7466 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7467 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7470 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7471 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7472 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7474 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7475 case MONO_TYPE_ARRAY:
7476 case MONO_TYPE_SZARRAY:
7477 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7478 case MONO_TYPE_BOOLEAN:
7479 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7481 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7482 case MONO_TYPE_CHAR:
7483 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7496 case MONO_TYPE_FNPTR:
7497 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7498 case MONO_TYPE_GENERICINST:
7499 if (mono_type_generic_inst_is_valuetype (t))
7500 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7502 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7508 /* How the arguments of an icall should be wrapped */
7510 /* Don't wrap at all, pass the argument as is */
7511 ICALL_HANDLES_WRAP_NONE,
7512 /* Wrap the argument in an object handle, pass the handle to the icall */
7513 ICALL_HANDLES_WRAP_OBJ,
7514 /* Wrap the argument in an object handle, pass the handle to the icall,
7515 write the value out from the handle when the icall returns */
7516 ICALL_HANDLES_WRAP_OBJ_INOUT,
7517 /* Wrap the argument (a valuetype reference) in a handle to pin its enclosing object,
7518 but pass the raw reference to the icall */
7519 ICALL_HANDLES_WRAP_VALUETYPE_REF,
7523 IcallHandlesWrap wrap;
7524 /* if wrap is NONE or OBJ or VALUETYPE_REF, this is not meaningful.
7525 if wrap is OBJ_INOUT it's the local var that holds the MonoObjectHandle.
7528 } IcallHandlesLocal;
7531 * Describes how to wrap the given parameter.
7534 static IcallHandlesWrap
7535 signature_param_uses_handles (MonoMethodSignature *sig, int param)
7537 if (MONO_TYPE_IS_REFERENCE (sig->params [param])) {
7538 return mono_signature_param_is_out (sig, param) ? ICALL_HANDLES_WRAP_OBJ_INOUT : ICALL_HANDLES_WRAP_OBJ;
7539 } else if (mono_type_is_byref (sig->params [param]))
7540 return ICALL_HANDLES_WRAP_VALUETYPE_REF;
7542 return ICALL_HANDLES_WRAP_NONE;
7548 * mono_marshal_emit_native_wrapper:
7549 * \param image the image to use for looking up custom marshallers
7550 * \param sig The signature of the native function
7551 * \param piinfo Marshalling information
7552 * \param mspecs Marshalling information
7553 * \param aot whenever the created method will be compiled by the AOT compiler
7554 * \param method if non-NULL, the pinvoke method to call
7555 * \param check_exceptions Whenever to check for pending exceptions after the native call
7556 * \param func_param the function to call is passed as a boxed IntPtr as the first parameter
7558 * generates IL code for the pinvoke wrapper, the generated code calls \p func .
7561 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)
7563 EmitMarshalContext m;
7564 MonoMethodSignature *csig;
7566 int i, argnum, *tmp_locals;
7567 int type, param_shift = 0;
7568 int coop_gc_stack_dummy, coop_gc_var;
7570 memset (&m, 0, sizeof (m));
7575 /* we copy the signature, so that we can set pinvoke to 0 */
7577 /* The function address is passed as the first argument */
7578 g_assert (!sig->hasthis);
7581 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7589 /* we allocate local for use with emit_struct_conv() */
7590 /* allocate local 0 (pointer) src_ptr */
7591 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7592 /* allocate local 1 (pointer) dst_ptr */
7593 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7594 /* allocate local 2 (boolean) delete_old */
7595 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7597 /* delete_old = FALSE */
7598 mono_mb_emit_icon (mb, 0);
7599 mono_mb_emit_stloc (mb, 2);
7601 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7602 /* allocate local 3 to store the return value */
7603 mono_mb_add_local (mb, sig->ret);
7606 if (mono_threads_is_coop_enabled ()) {
7607 /* local 4, dummy local used to get a stack address for suspend funcs */
7608 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7609 /* local 5, the local to be used when calling the suspend funcs */
7610 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7614 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7616 * ret = method (...);
7618 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7625 if (MONO_TYPE_ISSTRUCT (sig->ret))
7626 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7628 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7629 /* Return type custom marshaling */
7631 * Since we can't determine the return type of the unmanaged function,
7632 * we assume it returns a pointer, and pass that pointer to
7633 * MarshalNativeToManaged.
7635 csig->ret = &mono_defaults.int_class->byval_arg;
7638 /* we first do all conversions */
7639 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7640 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7642 for (i = 0; i < sig->param_count; i ++) {
7643 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7646 // In coop mode need to register blocking state during native call
7647 if (mono_threads_is_coop_enabled ()) {
7648 // Perform an extra, early lookup of the function address, so any exceptions
7649 // potentially resulting from the lookup occur before entering blocking mode.
7650 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7651 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7652 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7653 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7656 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7657 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7658 mono_mb_emit_stloc (mb, coop_gc_var);
7661 /* push all arguments */
7664 mono_mb_emit_byte (mb, CEE_LDARG_0);
7666 for (i = 0; i < sig->param_count; i++) {
7667 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7670 /* call the native method */
7672 mono_mb_emit_byte (mb, CEE_LDARG_0);
7673 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7674 mono_mb_emit_byte (mb, CEE_LDIND_I);
7675 mono_mb_emit_calli (mb, csig);
7676 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7678 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7680 g_assert_not_reached ();
7684 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7685 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7686 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7687 mono_mb_emit_calli (mb, csig);
7689 mono_mb_emit_native_call (mb, csig, func);
7693 /* Set LastError if needed */
7694 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7697 static MonoMethodSignature *get_last_error_sig = NULL;
7698 if (!get_last_error_sig) {
7699 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7700 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7701 get_last_error_sig->pinvoke = 1;
7705 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7706 * clobber its value.
7708 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7709 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7711 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7712 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7713 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7716 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7720 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7721 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7722 mono_class_init (klass);
7723 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
7724 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7725 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7726 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7727 mono_mb_emit_stloc (mb, m.vtaddr_var);
7731 /* Unblock before converting the result, since that can involve calls into the runtime */
7732 if (mono_threads_is_coop_enabled ()) {
7733 mono_mb_emit_ldloc (mb, coop_gc_var);
7734 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7735 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7738 /* convert the result */
7739 if (!sig->ret->byref) {
7740 MonoMarshalSpec *spec = mspecs [0];
7741 type = sig->ret->type;
7743 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7744 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7748 case MONO_TYPE_VOID:
7750 case MONO_TYPE_VALUETYPE:
7751 klass = sig->ret->data.klass;
7752 if (klass->enumtype) {
7753 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7756 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7770 case MONO_TYPE_FNPTR:
7771 case MONO_TYPE_STRING:
7772 case MONO_TYPE_CLASS:
7773 case MONO_TYPE_OBJECT:
7774 case MONO_TYPE_BOOLEAN:
7775 case MONO_TYPE_ARRAY:
7776 case MONO_TYPE_SZARRAY:
7777 case MONO_TYPE_CHAR:
7779 case MONO_TYPE_GENERICINST:
7780 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7782 case MONO_TYPE_TYPEDBYREF:
7784 g_warning ("return type 0x%02x unknown", sig->ret->type);
7785 g_assert_not_reached ();
7789 mono_mb_emit_stloc (mb, 3);
7793 * Need to call this after converting the result since MONO_VTADDR needs
7794 * to be adjacent to the call instruction.
7796 if (check_exceptions)
7797 emit_thread_interrupt_checkpoint (mb);
7799 /* we need to convert byref arguments back and free string arrays */
7800 for (i = 0; i < sig->param_count; i++) {
7801 MonoType *t = sig->params [i];
7802 MonoMarshalSpec *spec = mspecs [i + 1];
7804 argnum = i + param_shift;
7806 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7807 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7812 case MONO_TYPE_STRING:
7813 case MONO_TYPE_VALUETYPE:
7814 case MONO_TYPE_CLASS:
7815 case MONO_TYPE_OBJECT:
7816 case MONO_TYPE_SZARRAY:
7817 case MONO_TYPE_BOOLEAN:
7818 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7825 if (!MONO_TYPE_IS_VOID(sig->ret))
7826 mono_mb_emit_ldloc (mb, 3);
7828 mono_mb_emit_byte (mb, CEE_RET);
7830 #endif /* DISABLE_JIT */
7833 * mono_marshal_get_native_wrapper:
7834 * \param method The \c MonoMethod to wrap.
7835 * \param check_exceptions Whenever to check for pending exceptions
7837 * Generates IL code for the pinvoke wrapper. The generated method
7838 * calls the unmanaged code in \c piinfo->addr.
7841 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7843 MonoMethodSignature *sig, *csig;
7844 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7845 MonoMethodBuilder *mb;
7846 MonoMarshalSpec **mspecs;
7849 gboolean pinvoke = FALSE;
7852 const char *exc_class = "MissingMethodException";
7853 const char *exc_arg = NULL;
7856 g_assert (method != NULL);
7857 g_assert (mono_method_signature (method)->pinvoke);
7859 GHashTable **cache_ptr;
7862 if (check_exceptions)
7863 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7865 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7867 if (check_exceptions)
7868 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7870 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7873 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7875 if ((res = mono_marshal_find_in_cache (cache, method)))
7878 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7879 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7883 return mono_cominterop_get_native_wrapper (method);
7885 g_assert_not_reached ();
7889 sig = mono_method_signature (method);
7891 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7892 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7895 if (!piinfo->addr) {
7897 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7898 exc_arg = "Method contains unsupported native code";
7900 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7902 piinfo->addr = mono_lookup_internal_call (method);
7906 /* hack - redirect certain string constructors to CreateString */
7907 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7908 g_assert (!pinvoke);
7909 g_assert (method->string_ctor);
7910 g_assert (sig->hasthis);
7912 /* CreateString returns a value */
7913 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7914 csig->ret = &mono_defaults.string_class->byval_arg;
7918 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7919 if (!strcmp ("CreateString", res->name) &&
7920 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7923 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7924 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7926 /* create a wrapper to preserve .ctor in stack trace */
7927 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7930 mono_mb_emit_byte (mb, CEE_LDARG_0);
7931 for (i = 1; i <= csig->param_count; i++)
7932 mono_mb_emit_ldarg (mb, i);
7933 mono_mb_emit_managed_call (mb, res, NULL);
7934 mono_mb_emit_byte (mb, CEE_RET);
7937 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7938 info->d.string_ctor.method = method;
7940 /* use native_wrapper_cache because internal calls are looked up there */
7941 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7942 csig->param_count + 1, info, NULL);
7949 /* exception will be thrown */
7950 piinfo->addr = NULL;
7951 g_warning ("cannot find CreateString for .ctor");
7954 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7956 mb->method->save_lmf = 1;
7959 * In AOT mode and embedding scenarios, it is possible that the icall is not
7960 * registered in the runtime doing the AOT compilation.
7962 if (!piinfo->addr && !aot) {
7964 mono_mb_emit_exception (mb, exc_class, exc_arg);
7966 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7967 info->d.managed_to_native.method = method;
7969 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7971 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7972 csig->param_count + 16, info, NULL);
7978 /* internal calls: we simply push all arguments and call the method (no conversions) */
7979 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7981 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7983 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7985 //printf ("%s\n", mono_method_full_name (method, 1));
7987 /* hack - string constructors returns a value */
7988 if (method->string_ctor)
7989 csig->ret = &mono_defaults.string_class->byval_arg;
7993 MonoClass *handle_stack_mark_class;
7994 MonoClass *error_class;
7995 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
7996 MonoMethodSignature *call_sig = csig;
7997 gboolean uses_handles = FALSE;
7998 gboolean save_handles_to_locals = FALSE;
7999 IcallHandlesLocal *handles_locals = NULL;
8000 (void) mono_lookup_internal_call_full (method, &uses_handles);
8003 /* If it uses handles and MonoError, it had better check exceptions */
8004 g_assert (!uses_handles || check_exceptions);
8007 MonoMethodSignature *ret;
8009 /* Add a MonoError argument and figure out which args need to be wrapped in handles */
8010 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
8011 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
8013 ret->param_count = csig->param_count + 1;
8014 ret->ret = csig->ret;
8016 handles_locals = g_new0 (IcallHandlesLocal, csig->param_count);
8017 for (int i = 0; i < csig->param_count; ++i) {
8018 IcallHandlesWrap w = signature_param_uses_handles (csig, i);
8019 handles_locals [i].wrap = w;
8021 case ICALL_HANDLES_WRAP_OBJ:
8022 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8023 ret->params [i] = mono_class_get_byref_type (mono_class_from_mono_type(csig->params[i]));
8024 if (w == ICALL_HANDLES_WRAP_OBJ_INOUT)
8025 save_handles_to_locals = TRUE;
8027 case ICALL_HANDLES_WRAP_NONE:
8028 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8029 ret->params [i] = csig->params [i];
8032 g_assert_not_reached ();
8035 /* Add MonoError* param */
8036 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
8037 ret->pinvoke = csig->pinvoke;
8043 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
8044 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
8046 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
8047 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
8048 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
8050 if (save_handles_to_locals) {
8051 /* add a local var to hold the handles for each out arg */
8052 for (int i = 0; i < sig->param_count; ++i) {
8053 int j = i + sig->hasthis;
8054 switch (handles_locals[j].wrap) {
8055 case ICALL_HANDLES_WRAP_NONE:
8056 case ICALL_HANDLES_WRAP_OBJ:
8057 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8058 handles_locals [j].handle = -1;
8060 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8061 handles_locals [j].handle = mono_mb_add_local (mb, sig->params [i]);
8064 g_assert_not_reached ();
8074 * Add a null check since public icalls can be called with 'call' which
8075 * does no such check.
8077 mono_mb_emit_byte (mb, CEE_LDARG_0);
8078 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8079 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8080 mono_mb_patch_branch (mb, pos);
8084 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8085 mono_mb_emit_ldloc_addr (mb, error_var);
8086 mono_mb_emit_icall (mb, mono_icall_start);
8087 mono_mb_emit_stloc (mb, thread_info_var);
8090 mono_mb_emit_byte (mb, CEE_LDARG_0);
8091 /* TODO support adding wrappers to non-static struct methods */
8092 g_assert (!mono_class_is_valuetype(mono_method_get_class (method)));
8093 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8094 mono_mb_emit_icall (mb, mono_handle_new_full);
8096 for (i = 0; i < sig->param_count; i++) {
8097 /* load each argument. references into the managed heap get wrapped in handles */
8098 int j = i + sig->hasthis;
8099 switch (handles_locals[j].wrap) {
8100 case ICALL_HANDLES_WRAP_NONE:
8101 mono_mb_emit_ldarg (mb, j);
8103 case ICALL_HANDLES_WRAP_OBJ:
8104 /* argI = mono_handle_new_full (argI_raw, FALSE) */
8105 mono_mb_emit_ldarg (mb, j);
8106 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8107 mono_mb_emit_icall (mb, mono_handle_new_full);
8109 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8110 /* handleI = argI = mono_handle_new_full (NULL, FALSE) */
8111 mono_mb_emit_byte (mb, CEE_LDNULL);
8112 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8113 mono_mb_emit_icall (mb, mono_handle_new_full);
8115 mono_mb_emit_byte (mb, CEE_DUP);
8117 mono_mb_emit_stloc (mb, handles_locals[j].handle);
8119 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8120 /* (void) mono_handle_new_full (argI, TRUE); argI */
8121 mono_mb_emit_ldarg (mb, j);
8122 mono_mb_emit_byte (mb, CEE_DUP);
8123 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8124 mono_mb_emit_icall (mb, mono_handle_new_full);
8125 mono_mb_emit_byte (mb, CEE_POP);
8127 fprintf (stderr, " Method %s.%s.%s has byref valuetype argument %d\n", method->klass->name_space, method->klass->name, method->name, i);
8131 g_assert_not_reached ();
8134 mono_mb_emit_ldloc_addr (mb, error_var);
8137 mono_mb_emit_byte (mb, CEE_LDARG_0);
8138 for (i = 0; i < sig->param_count; i++)
8139 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8143 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8144 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8145 mono_mb_emit_calli (mb, call_sig);
8147 g_assert (piinfo->addr);
8148 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
8152 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
8153 // if (ret != NULL_HANDLE) {
8154 // ret = MONO_HANDLE_RAW(ret)
8156 mono_mb_emit_byte (mb, CEE_DUP);
8157 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8158 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8159 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8160 mono_mb_patch_branch (mb, pos);
8162 if (save_handles_to_locals) {
8163 for (i = 0; i < sig->param_count; i++) {
8164 int j = i + sig->hasthis;
8165 switch (handles_locals [j].wrap) {
8166 case ICALL_HANDLES_WRAP_NONE:
8167 case ICALL_HANDLES_WRAP_OBJ:
8168 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8170 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8171 /* *argI_raw = MONO_HANDLE_RAW (handleI) */
8174 mono_mb_emit_ldarg (mb, j);
8176 mono_mb_emit_ldloc (mb, handles_locals [j].handle);
8177 /* MONO_HANDLE_RAW(handleI) */
8178 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8179 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8180 /* *argI_raw = MONO_HANDLE_RAW(handleI) */
8181 mono_mb_emit_byte (mb, CEE_STIND_REF);
8184 g_assert_not_reached ();
8188 g_free (handles_locals);
8190 mono_mb_emit_ldloc (mb, thread_info_var);
8191 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8192 mono_mb_emit_ldloc_addr (mb, error_var);
8193 mono_mb_emit_icall (mb, mono_icall_end);
8196 if (check_exceptions)
8197 emit_thread_interrupt_checkpoint (mb);
8198 mono_mb_emit_byte (mb, CEE_RET);
8200 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8201 info->d.managed_to_native.method = method;
8203 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
8205 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8214 g_assert (piinfo->addr);
8217 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8218 mono_method_get_marshal_info (method, mspecs);
8220 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
8222 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
8223 info->d.managed_to_native.method = method;
8225 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8227 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8232 for (i = sig->param_count; i >= 0; i--)
8234 mono_metadata_free_marshal_spec (mspecs [i]);
8238 /* mono_method_print_code (res); */
8244 * mono_marshal_get_native_func_wrapper:
8245 * \param image The image to use for memory allocation and for looking up custom marshallers.
8246 * \param sig The signature of the function
8247 * \param func The native function to wrap
8249 * \returns a wrapper method around native functions, similar to the pinvoke
8253 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8254 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8256 MonoMethodSignature *csig;
8258 SignaturePointerPair key, *new_key;
8259 MonoMethodBuilder *mb;
8268 // Generic types are not safe to place in MonoImage caches.
8269 g_assert (!sig->is_inflated);
8271 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
8272 if ((res = mono_marshal_find_in_cache (cache, &key)))
8275 name = g_strdup_printf ("wrapper_native_%p", func);
8276 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8277 mb->method->save_lmf = 1;
8280 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8283 csig = mono_metadata_signature_dup_full (image, sig);
8286 new_key = g_new (SignaturePointerPair,1);
8287 new_key->sig = csig;
8288 new_key->pointer = func;
8290 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
8296 mono_marshal_set_wrapper_info (res, NULL);
8302 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8306 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8308 MonoMethodSignature *sig, *csig;
8309 MonoMethodBuilder *mb;
8314 MonoMethodPInvoke mpiinfo;
8315 MonoMethodPInvoke *piinfo = &mpiinfo;
8316 MonoMarshalSpec **mspecs;
8317 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8318 MonoImage *image = invoke->klass->image;
8321 // FIXME: include UnmanagedFunctionPointerAttribute info
8324 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8326 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8328 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8331 memset (&mpiinfo, 0, sizeof (mpiinfo));
8332 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8334 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8335 mono_method_get_marshal_info (invoke, mspecs);
8336 /* Freed below so don't alloc from mempool */
8337 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8340 name = g_strdup_printf ("wrapper_aot_native");
8341 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8342 mb->method->save_lmf = 1;
8345 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8348 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8349 info->d.managed_to_native.method = invoke;
8351 g_assert (!sig->hasthis);
8352 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8354 res = mono_mb_create_and_cache_full (cache, invoke,
8355 mb, csig, csig->param_count + 16,
8359 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8361 mono_metadata_free_marshal_spec (mspecs [i]);
8369 * mono_marshal_emit_managed_wrapper:
8371 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8372 * the delegate which wraps the managed method to be called. For closed delegates,
8373 * it could have fewer parameters than the method it wraps.
8374 * THIS_LOC is the memory location where the target of the delegate is stored.
8377 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8380 MonoMethodSignature *sig, *csig;
8386 /* we first do all conversions */
8387 for (i = 0; i < sig->param_count; i ++) {
8388 MonoType *t = sig->params [i];
8391 case MONO_TYPE_OBJECT:
8392 case MONO_TYPE_CLASS:
8393 case MONO_TYPE_VALUETYPE:
8394 case MONO_TYPE_ARRAY:
8395 case MONO_TYPE_SZARRAY:
8396 case MONO_TYPE_STRING:
8397 case MONO_TYPE_BOOLEAN:
8398 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8402 if (!sig->ret->byref) {
8403 switch (sig->ret->type) {
8404 case MONO_TYPE_STRING:
8405 csig->ret = &mono_defaults.int_class->byval_arg;
8412 MonoMethodSignature *sig, *csig;
8413 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8414 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8415 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8416 gboolean closed = FALSE;
8421 /* allocate local 0 (pointer) src_ptr */
8422 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8423 /* allocate local 1 (pointer) dst_ptr */
8424 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8425 /* allocate local 2 (boolean) delete_old */
8426 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8428 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8429 /* Closed delegate */
8430 g_assert (sig->param_count == invoke_sig->param_count + 1);
8432 /* Use a new signature without the first argument */
8433 sig = mono_metadata_signature_dup (sig);
8434 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8435 sig->param_count --;
8438 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8439 /* allocate local 3 to store the return value */
8440 mono_mb_add_local (mb, sig->ret);
8443 if (MONO_TYPE_ISSTRUCT (sig->ret))
8444 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8446 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8447 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8449 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8450 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8455 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8456 * mono_threads_attach_coop ();
8460 * ret = method (...);
8461 * } catch (Exception e) {
8462 * ex = mono_gchandle_new (e, false);
8464 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8465 * mono_threads_detach_coop ();
8468 * mono_marshal_ftnptr_eh_callback (ex);
8474 clauses = g_new0 (MonoExceptionClause, 2);
8476 clause_catch = &clauses [0];
8477 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8478 clause_catch->data.catch_class = mono_defaults.exception_class;
8480 clause_finally = &clauses [1];
8481 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8483 mono_mb_emit_icon (mb, 0);
8484 mono_mb_emit_stloc (mb, 2);
8486 mono_mb_emit_icon (mb, -1);
8487 mono_mb_emit_byte (mb, CEE_CONV_U4);
8488 mono_mb_emit_stloc (mb, ex_local);
8491 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8493 if (!mono_threads_is_coop_enabled ()) {
8494 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8495 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8497 /* mono_threads_attach_coop (); */
8498 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8499 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8500 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8501 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8502 mono_mb_emit_stloc (mb, attach_cookie_local);
8505 /* <interrupt check> */
8506 emit_thread_interrupt_checkpoint (mb);
8508 /* we first do all conversions */
8509 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8510 for (i = 0; i < sig->param_count; i ++) {
8511 MonoType *t = sig->params [i];
8514 case MONO_TYPE_OBJECT:
8515 case MONO_TYPE_CLASS:
8516 case MONO_TYPE_VALUETYPE:
8517 case MONO_TYPE_ARRAY:
8518 case MONO_TYPE_SZARRAY:
8519 case MONO_TYPE_STRING:
8520 case MONO_TYPE_BOOLEAN:
8521 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8531 if (target_handle) {
8532 mono_mb_emit_icon (mb, (gint32)target_handle);
8533 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8536 g_assert_not_reached ();
8538 } else if (closed) {
8539 mono_mb_emit_icon (mb, (gint32)target_handle);
8540 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8543 for (i = 0; i < sig->param_count; i++) {
8544 MonoType *t = sig->params [i];
8546 if (tmp_locals [i]) {
8548 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8550 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8553 mono_mb_emit_ldarg (mb, i);
8556 /* ret = method (...) */
8557 mono_mb_emit_managed_call (mb, method, NULL);
8559 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8560 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8561 mono_class_init (klass);
8562 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
8563 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8564 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8565 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8566 mono_mb_emit_stloc (mb, m->vtaddr_var);
8570 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8571 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8572 } else if (!sig->ret->byref) {
8573 switch (sig->ret->type) {
8574 case MONO_TYPE_VOID:
8576 case MONO_TYPE_BOOLEAN:
8579 case MONO_TYPE_CHAR:
8591 case MONO_TYPE_OBJECT:
8592 mono_mb_emit_stloc (mb, 3);
8594 case MONO_TYPE_STRING:
8595 csig->ret = &mono_defaults.int_class->byval_arg;
8596 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8598 case MONO_TYPE_VALUETYPE:
8599 case MONO_TYPE_CLASS:
8600 case MONO_TYPE_SZARRAY:
8601 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8604 g_warning ("return type 0x%02x unknown", sig->ret->type);
8605 g_assert_not_reached ();
8608 mono_mb_emit_stloc (mb, 3);
8611 /* Convert byref arguments back */
8612 for (i = 0; i < sig->param_count; i ++) {
8613 MonoType *t = sig->params [i];
8614 MonoMarshalSpec *spec = mspecs [i + 1];
8616 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8617 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8619 else if (t->byref) {
8621 case MONO_TYPE_CLASS:
8622 case MONO_TYPE_VALUETYPE:
8623 case MONO_TYPE_OBJECT:
8624 case MONO_TYPE_STRING:
8625 case MONO_TYPE_BOOLEAN:
8626 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8632 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8633 /* The [Out] information is encoded in the delegate signature */
8635 case MONO_TYPE_SZARRAY:
8636 case MONO_TYPE_CLASS:
8637 case MONO_TYPE_VALUETYPE:
8638 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8641 g_assert_not_reached ();
8646 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8650 /* catch (Exception e) { */
8651 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8652 clause_catch->handler_offset = mono_mb_get_label (mb);
8654 mono_mb_emit_stloc (mb, e_local);
8656 /* ex = mono_gchandle_new (e, false); */
8657 mono_mb_emit_ldloc (mb, e_local);
8658 mono_mb_emit_icon (mb, 0);
8659 mono_mb_emit_icall (mb, mono_gchandle_new);
8660 mono_mb_emit_stloc (mb, ex_local);
8662 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8665 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8668 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8669 clause_finally->handler_offset = mono_mb_get_label (mb);
8671 if (!mono_threads_is_coop_enabled ()) {
8672 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8673 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8675 /* mono_threads_detach_coop (); */
8676 mono_mb_emit_ldloc (mb, attach_cookie_local);
8677 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8678 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8682 mono_mb_emit_ldloc (mb, ex_local);
8683 mono_mb_emit_icon (mb, -1);
8684 mono_mb_emit_byte (mb, CEE_CONV_U4);
8685 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8687 /* mono_marshal_ftnptr_eh_callback (ex) */
8688 mono_mb_emit_ldloc (mb, ex_local);
8689 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8692 mono_mb_patch_branch (mb, ex_m1_pos);
8694 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8696 /* } [endfinally] */
8697 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8699 mono_mb_patch_branch (mb, leave_try_pos);
8700 mono_mb_patch_branch (mb, leave_catch_pos);
8703 if (m->retobj_var) {
8704 mono_mb_emit_ldloc (mb, m->retobj_var);
8705 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8706 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8709 if (!MONO_TYPE_IS_VOID(sig->ret))
8710 mono_mb_emit_ldloc (mb, 3);
8711 mono_mb_emit_byte (mb, CEE_RET);
8714 mono_mb_set_clauses (mb, 2, clauses);
8722 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8724 MonoMethodSignature *sig;
8729 * Under windows, delegates passed to native code must use the STDCALL
8730 * calling convention.
8732 csig->call_convention = MONO_CALL_STDCALL;
8735 sig = mono_method_signature (method);
8737 /* Change default calling convention if needed */
8738 /* Why is this a modopt ? */
8739 if (sig->ret && sig->ret->num_mods) {
8740 for (i = 0; i < sig->ret->num_mods; ++i) {
8742 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8743 g_assert (mono_error_ok (&error));
8744 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8745 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8746 csig->call_convention = MONO_CALL_C;
8747 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8748 csig->call_convention = MONO_CALL_STDCALL;
8749 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8750 csig->call_convention = MONO_CALL_FASTCALL;
8751 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8752 csig->call_convention = MONO_CALL_THISCALL;
8759 * mono_marshal_get_managed_wrapper:
8760 * Generates IL code to call managed methods from unmanaged code
8761 * If \p target_handle is \c 0, the wrapper info will be a \c WrapperInfo structure.
8764 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle, MonoError *error)
8766 MonoMethodSignature *sig, *csig, *invoke_sig;
8767 MonoMethodBuilder *mb;
8768 MonoMethod *res, *invoke;
8769 MonoMarshalSpec **mspecs;
8770 MonoMethodPInvoke piinfo;
8773 EmitMarshalContext m;
8775 g_assert (method != NULL);
8778 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
8779 mono_error_set_invalid_program (error, "Failed because method (%s) marked PInvokeCallback (managed method) and extern (unmanaged) simultaneously.", mono_method_full_name (method, TRUE));
8784 * FIXME: Should cache the method+delegate type pair, since the same method
8785 * could be called with different delegates, thus different marshalling
8788 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8790 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8793 invoke = mono_get_delegate_invoke (delegate_klass);
8794 invoke_sig = mono_method_signature (invoke);
8796 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8797 mono_method_get_marshal_info (invoke, mspecs);
8799 sig = mono_method_signature (method);
8801 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8803 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8804 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8806 /* we copy the signature, so that we can modify it */
8808 /* Need to free this later */
8809 csig = mono_metadata_signature_dup (invoke_sig);
8811 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8815 memset (&m, 0, sizeof (m));
8821 m.image = method->klass->image;
8823 mono_marshal_set_callconv_from_modopt (invoke, csig);
8825 /* The attribute is only available in Net 2.0 */
8826 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8827 MonoCustomAttrInfo *cinfo;
8828 MonoCustomAttrEntry *attr;
8831 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8832 * contents of the attribute without constructing it, as that might not be
8833 * possible when running in cross-compiling mode.
8835 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, error);
8836 mono_error_assert_ok (error);
8839 for (i = 0; i < cinfo->num_attrs; ++i) {
8840 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8841 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8842 attr = &cinfo->attrs [i];
8848 MonoArray *typed_args, *named_args;
8849 CattrNamedArg *arginfo;
8853 MonoBoolean set_last_error = 0;
8856 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8857 g_assert (mono_error_ok (&error));
8858 g_assert (mono_array_length (typed_args) == 1);
8861 o = mono_array_get (typed_args, MonoObject*, 0);
8862 call_conv = *(gint32*)mono_object_unbox (o);
8865 for (i = 0; i < mono_array_length (named_args); ++i) {
8866 CattrNamedArg *narg = &arginfo [i];
8868 o = mono_array_get (named_args, MonoObject*, i);
8870 g_assert (narg->field);
8871 if (!strcmp (narg->field->name, "CharSet")) {
8872 charset = *(gint32*)mono_object_unbox (o);
8873 } else if (!strcmp (narg->field->name, "SetLastError")) {
8874 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8875 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8876 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8877 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8878 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8880 g_assert_not_reached ();
8886 memset (&piinfo, 0, sizeof (piinfo));
8888 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8890 csig->call_convention = call_conv - 1;
8893 if (cinfo && !cinfo->cached)
8894 mono_custom_attrs_free (cinfo);
8897 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8899 if (!target_handle) {
8902 // FIXME: Associate it with the method+delegate_klass pair
8903 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8904 info->d.native_to_managed.method = method;
8905 info->d.native_to_managed.klass = delegate_klass;
8907 res = mono_mb_create_and_cache_full (cache, method,
8908 mb, csig, sig->param_count + 16,
8914 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8918 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8920 mono_metadata_free_marshal_spec (mspecs [i]);
8923 /* mono_method_print_code (res); */
8929 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8933 MonoMethodSignature *sig;
8934 MonoMethodBuilder *mb;
8939 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8941 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8944 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8945 MonoMethodSignature *csig;
8946 MonoMarshalSpec **mspecs;
8947 EmitMarshalContext m;
8949 sig = mono_method_signature (method);
8950 g_assert (!sig->hasthis);
8952 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8953 mono_method_get_marshal_info (method, mspecs);
8955 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8956 csig = mono_metadata_signature_dup_full (image, sig);
8960 memset (&m, 0, sizeof (m));
8968 mono_marshal_set_callconv_from_modopt (method, csig);
8970 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8972 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8977 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8980 for (i = sig->param_count; i >= 0; i--)
8982 mono_metadata_free_marshal_spec (mspecs [i]);
8985 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8986 mono_error_assert_ok (&error);
8987 return compiled_ptr;
8990 sig = mono_method_signature (method);
8991 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8993 param_count = sig->param_count + sig->hasthis;
8995 for (i = 0; i < param_count; i++)
8996 mono_mb_emit_ldarg (mb, i);
8998 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8999 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
9001 mono_mb_emit_op (mb, CEE_CALL, method);
9002 mono_mb_emit_byte (mb, CEE_RET);
9007 method = mono_mb_create (mb, sig, param_count, NULL);
9010 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
9011 mono_error_assert_ok (&error);
9012 return compiled_ptr;
9018 * The code directly following this is the cache hit, value positive branch
9020 * This function takes a new method builder with 0 locals and adds two locals
9021 * to create multiple out-branches and the fall through state of having the object
9022 * on the stack after a cache miss
9025 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
9026 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
9027 MonoMethodBuilder *mb)
9031 /* allocate local 0 (pointer) obj_vtable */
9032 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9033 /* allocate local 1 (pointer) cached_vtable */
9034 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9037 mono_mb_emit_ldarg (mb, obj_arg_position);
9038 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
9040 /*obj_vtable = obj->vtable;*/
9041 mono_mb_emit_ldarg (mb, obj_arg_position);
9042 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9043 mono_mb_emit_byte (mb, CEE_LDIND_I);
9044 mono_mb_emit_stloc (mb, 0);
9046 /* cached_vtable = *cache*/
9047 mono_mb_emit_ldarg (mb, cache_arg_position);
9048 mono_mb_emit_byte (mb, CEE_LDIND_I);
9049 mono_mb_emit_stloc (mb, 1);
9051 mono_mb_emit_ldloc (mb, 1);
9052 mono_mb_emit_byte (mb, CEE_LDC_I4);
9053 mono_mb_emit_i4 (mb, ~0x1);
9054 mono_mb_emit_byte (mb, CEE_CONV_I);
9055 mono_mb_emit_byte (mb, CEE_AND);
9056 mono_mb_emit_ldloc (mb, 0);
9057 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9058 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9060 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9061 mono_mb_emit_ldloc (mb, 1);
9062 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9063 mono_mb_emit_byte (mb, CEE_CONV_U);
9064 mono_mb_emit_byte (mb, CEE_AND);
9065 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
9066 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9069 mono_mb_patch_branch (mb, cache_miss_pos);
9072 mono_mb_emit_ldarg (mb, obj_arg_position);
9073 mono_mb_emit_ldarg (mb, class_arg_position);
9074 mono_mb_emit_ldarg (mb, cache_arg_position);
9075 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
9078 #endif /* DISABLE_JIT */
9081 * mono_marshal_get_castclass_with_cache:
9082 * This does the equivalent of \c mono_object_castclass_with_cache.
9085 mono_marshal_get_castclass_with_cache (void)
9087 static MonoMethod *cached;
9089 MonoMethodBuilder *mb;
9090 MonoMethodSignature *sig;
9091 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
9094 const int obj_arg_position = 0;
9095 const int class_arg_position = 1;
9096 const int cache_arg_position = 2;
9101 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9102 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9103 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9104 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9105 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9106 sig->ret = &mono_defaults.object_class->byval_arg;
9110 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9111 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9112 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9115 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9116 mono_mb_emit_ldarg (mb, obj_arg_position);
9117 mono_mb_emit_byte (mb, CEE_RET);
9120 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9121 mono_mb_patch_branch (mb, invalid_cast_pos);
9122 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9125 mono_mb_patch_branch (mb, return_null_pos);
9126 mono_mb_emit_byte (mb, CEE_LDNULL);
9127 mono_mb_emit_byte (mb, CEE_RET);
9128 #endif /* DISABLE_JIT */
9130 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9131 res = mono_mb_create (mb, sig, 8, info);
9134 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9135 mono_free_method (res);
9136 mono_metadata_free_method_signature (sig);
9143 /* this is an icall */
9145 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
9148 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
9149 if (mono_error_set_pending_exception (&error))
9152 if (mono_object_is_transparent_proxy (obj))
9155 uintptr_t cache_update = (uintptr_t)obj->vtable;
9157 cache_update = cache_update | 0x1;
9159 *cache = cache_update;
9165 * mono_marshal_get_isinst_with_cache:
9166 * This does the equivalent of \c mono_marshal_isinst_with_cache.
9169 mono_marshal_get_isinst_with_cache (void)
9171 static MonoMethod *cached;
9173 MonoMethodBuilder *mb;
9174 MonoMethodSignature *sig;
9175 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
9178 const int obj_arg_position = 0;
9179 const int class_arg_position = 1;
9180 const int cache_arg_position = 2;
9185 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9186 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9188 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9190 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9192 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9193 sig->ret = &mono_defaults.object_class->byval_arg;
9197 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9198 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9199 // Return the object gotten via the slow path.
9200 mono_mb_emit_byte (mb, CEE_RET);
9203 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9204 mono_mb_patch_branch (mb, return_null_pos);
9205 mono_mb_emit_byte (mb, CEE_LDNULL);
9206 mono_mb_emit_byte (mb, CEE_RET);
9209 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9210 mono_mb_emit_ldarg (mb, obj_arg_position);
9211 mono_mb_emit_byte (mb, CEE_RET);
9214 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9215 res = mono_mb_create (mb, sig, 8, info);
9218 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9219 mono_free_method (res);
9220 mono_metadata_free_method_signature (sig);
9228 * mono_marshal_get_struct_to_ptr:
9229 * \param klass \c MonoClass
9231 * Generates IL code for <code>StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)</code>
9234 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9236 MonoMethodBuilder *mb;
9237 static MonoMethod *stoptr = NULL;
9241 g_assert (klass != NULL);
9243 mono_marshal_load_type_info (klass);
9245 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9246 if (marshal_info->str_to_ptr)
9247 return marshal_info->str_to_ptr;
9250 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9253 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9256 if (klass->blittable) {
9257 mono_mb_emit_byte (mb, CEE_LDARG_1);
9258 mono_mb_emit_byte (mb, CEE_LDARG_0);
9259 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9260 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9261 mono_mb_emit_byte (mb, CEE_PREFIX1);
9262 mono_mb_emit_byte (mb, CEE_CPBLK);
9265 /* allocate local 0 (pointer) src_ptr */
9266 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9267 /* allocate local 1 (pointer) dst_ptr */
9268 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9269 /* allocate local 2 (boolean) delete_old */
9270 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9271 mono_mb_emit_byte (mb, CEE_LDARG_2);
9272 mono_mb_emit_stloc (mb, 2);
9274 /* initialize src_ptr to point to the start of object data */
9275 mono_mb_emit_byte (mb, CEE_LDARG_0);
9276 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9277 mono_mb_emit_stloc (mb, 0);
9279 /* initialize dst_ptr */
9280 mono_mb_emit_byte (mb, CEE_LDARG_1);
9281 mono_mb_emit_stloc (mb, 1);
9283 emit_struct_conv (mb, klass, FALSE);
9286 mono_mb_emit_byte (mb, CEE_RET);
9288 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9289 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9292 mono_marshal_lock ();
9293 if (!marshal_info->str_to_ptr)
9294 marshal_info->str_to_ptr = res;
9296 res = marshal_info->str_to_ptr;
9297 mono_marshal_unlock ();
9302 * mono_marshal_get_ptr_to_struct:
9303 * \param klass \c MonoClass
9304 * Generates IL code for <code>PtrToStructure (IntPtr src, object structure)</code>
9307 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9309 MonoMethodBuilder *mb;
9310 static MonoMethodSignature *ptostr = NULL;
9314 g_assert (klass != NULL);
9316 mono_marshal_load_type_info (klass);
9318 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9319 if (marshal_info->ptr_to_str)
9320 return marshal_info->ptr_to_str;
9323 MonoMethodSignature *sig;
9325 /* Create the signature corresponding to
9326 static void PtrToStructure (IntPtr ptr, object structure);
9327 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9328 sig = mono_create_icall_signature ("void ptr object");
9329 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9331 mono_memory_barrier ();
9335 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9338 if (klass->blittable) {
9339 mono_mb_emit_byte (mb, CEE_LDARG_1);
9340 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9341 mono_mb_emit_byte (mb, CEE_LDARG_0);
9342 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9343 mono_mb_emit_byte (mb, CEE_PREFIX1);
9344 mono_mb_emit_byte (mb, CEE_CPBLK);
9347 /* allocate local 0 (pointer) src_ptr */
9348 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9349 /* allocate local 1 (pointer) dst_ptr */
9350 mono_mb_add_local (mb, &klass->this_arg);
9352 /* initialize src_ptr to point to the start of object data */
9353 mono_mb_emit_byte (mb, CEE_LDARG_0);
9354 mono_mb_emit_stloc (mb, 0);
9356 /* initialize dst_ptr */
9357 mono_mb_emit_byte (mb, CEE_LDARG_1);
9358 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9359 mono_mb_emit_stloc (mb, 1);
9361 emit_struct_conv (mb, klass, TRUE);
9364 mono_mb_emit_byte (mb, CEE_RET);
9366 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9367 res = mono_mb_create (mb, ptostr, 0, info);
9370 mono_marshal_lock ();
9371 if (!marshal_info->ptr_to_str)
9372 marshal_info->ptr_to_str = res;
9374 res = marshal_info->ptr_to_str;
9375 mono_marshal_unlock ();
9380 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9381 * This is used to avoid infinite recursion since it is hard to determine where to
9382 * replace a method with its synchronized wrapper, and where not.
9383 * The runtime should execute METHOD instead of the wrapper.
9386 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9388 MonoMethodBuilder *mb;
9390 MonoMethodSignature *sig;
9392 MonoGenericContext *ctx = NULL;
9393 MonoGenericContainer *container = NULL;
9395 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9396 ctx = &((MonoMethodInflated*)method)->context;
9397 method = ((MonoMethodInflated*)method)->declaring;
9398 container = mono_method_get_generic_container (method);
9400 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9401 g_assert (container);
9404 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9406 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9407 mono_mb_emit_byte (mb, CEE_RET);
9409 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9411 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9412 info->d.synchronized_inner.method = method;
9413 res = mono_mb_create (mb, sig, 0, info);
9417 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9418 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9424 * mono_marshal_get_synchronized_wrapper:
9425 * Generates IL code for the synchronized wrapper: the generated method
9426 * calls \p method while locking \c this or the parent type.
9429 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9431 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9432 MonoMethodSignature *sig;
9433 MonoExceptionClause *clause;
9434 MonoMethodBuilder *mb;
9438 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9439 MonoGenericContext *ctx = NULL;
9440 MonoMethod *orig_method = NULL;
9441 MonoGenericContainer *container = NULL;
9445 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9448 /* FIXME: Support generic methods too */
9449 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9450 orig_method = method;
9451 ctx = &((MonoMethodInflated*)method)->context;
9452 method = ((MonoMethodInflated*)method)->declaring;
9453 container = mono_method_get_generic_container (method);
9455 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9456 g_assert (container);
9463 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9464 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9468 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9469 if ((res = mono_marshal_find_in_cache (cache, method)))
9473 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9476 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9478 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9479 info->d.synchronized.method = method;
9482 mb->skip_visibility = 1;
9484 if (!MONO_TYPE_IS_VOID (sig->ret))
9485 ret_local = mono_mb_add_local (mb, sig->ret);
9488 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9489 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9490 mono_class_set_type_load_failure (method->klass, "");
9492 /* This will throw the type load exception when the wrapper is compiled */
9493 mono_mb_emit_byte (mb, CEE_LDNULL);
9494 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9495 mono_mb_emit_byte (mb, CEE_POP);
9497 if (!MONO_TYPE_IS_VOID (sig->ret))
9498 mono_mb_emit_ldloc (mb, ret_local);
9499 mono_mb_emit_byte (mb, CEE_RET);
9502 res = mono_mb_create_and_cache_full (cache, method,
9503 mb, sig, sig->param_count + 16, info, NULL);
9511 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9512 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9514 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9515 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9518 mono_marshal_lock ();
9520 if (!enter_method) {
9521 MonoMethodDesc *desc;
9523 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9524 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9525 g_assert (enter_method);
9526 mono_method_desc_free (desc);
9528 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9529 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9530 g_assert (exit_method);
9531 mono_method_desc_free (desc);
9533 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9534 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9535 g_assert (gettypefromhandle_method);
9536 mono_method_desc_free (desc);
9539 mono_marshal_unlock ();
9542 /* Push this or the type object */
9543 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9544 /* We have special handling for this in the JIT */
9545 int index = mono_mb_add_data (mb, method->klass);
9546 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9547 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9548 mono_mb_emit_i4 (mb, index);
9550 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9553 mono_mb_emit_ldarg (mb, 0);
9554 mono_mb_emit_stloc (mb, this_local);
9556 /* Call Monitor::Enter() */
9557 mono_mb_emit_ldloc (mb, this_local);
9558 mono_mb_emit_ldloc_addr (mb, taken_local);
9559 mono_mb_emit_managed_call (mb, enter_method, NULL);
9561 clause->try_offset = mono_mb_get_label (mb);
9563 /* Call the method */
9565 mono_mb_emit_ldarg (mb, 0);
9566 for (i = 0; i < sig->param_count; i++)
9567 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9571 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9572 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9574 mono_mb_emit_managed_call (mb, method, NULL);
9577 if (!MONO_TYPE_IS_VOID (sig->ret))
9578 mono_mb_emit_stloc (mb, ret_local);
9580 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9582 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9583 clause->handler_offset = mono_mb_get_label (mb);
9585 /* Call Monitor::Exit() if needed */
9586 mono_mb_emit_ldloc (mb, taken_local);
9587 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9588 mono_mb_emit_ldloc (mb, this_local);
9589 mono_mb_emit_managed_call (mb, exit_method, NULL);
9590 mono_mb_patch_branch (mb, pos2);
9591 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9593 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9595 mono_mb_patch_branch (mb, pos);
9596 if (!MONO_TYPE_IS_VOID (sig->ret))
9597 mono_mb_emit_ldloc (mb, ret_local);
9598 mono_mb_emit_byte (mb, CEE_RET);
9600 mono_mb_set_clauses (mb, 1, clause);
9605 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9606 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9608 res = mono_mb_create_and_cache_full (cache, method,
9609 mb, sig, sig->param_count + 16, info, NULL);
9618 * mono_marshal_get_unbox_wrapper:
9619 * The returned method calls \p method unboxing the \c this argument.
9622 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9624 MonoMethodSignature *sig = mono_method_signature (method);
9626 MonoMethodBuilder *mb;
9631 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9633 if ((res = mono_marshal_find_in_cache (cache, method)))
9636 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9638 g_assert (sig->hasthis);
9641 mono_mb_emit_ldarg (mb, 0);
9642 mono_mb_emit_icon (mb, sizeof (MonoObject));
9643 mono_mb_emit_byte (mb, CEE_ADD);
9644 for (i = 0; i < sig->param_count; ++i)
9645 mono_mb_emit_ldarg (mb, i + 1);
9646 mono_mb_emit_managed_call (mb, method, NULL);
9647 mono_mb_emit_byte (mb, CEE_RET);
9650 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9651 info->d.unbox.method = method;
9653 res = mono_mb_create_and_cache_full (cache, method,
9654 mb, sig, sig->param_count + 16, info, NULL);
9657 /* mono_method_print_code (res); */
9663 STELEMREF_OBJECT, /*no check at all*/
9664 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9665 STELEMREF_CLASS, /*only the klass->parents check*/
9666 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9667 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9668 STELEMREF_KIND_COUNT
9671 static const char *strelemref_wrapper_name[] = {
9672 "object", "sealed_class", "class", "interface", "complex"
9676 is_monomorphic_array (MonoClass *klass)
9678 MonoClass *element_class;
9679 if (klass->rank != 1)
9682 element_class = klass->element_class;
9683 return mono_class_is_sealed (element_class) || element_class->valuetype;
9687 get_virtual_stelemref_kind (MonoClass *element_class)
9689 if (element_class == mono_defaults.object_class)
9690 return STELEMREF_OBJECT;
9691 if (is_monomorphic_array (element_class))
9692 return STELEMREF_SEALED_CLASS;
9693 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9694 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9695 #ifdef COMPRESSED_INTERFACE_BITMAP
9696 return STELEMREF_COMPLEX;
9698 return STELEMREF_INTERFACE;
9700 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9701 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9702 return STELEMREF_COMPLEX;
9703 if (mono_class_is_sealed (element_class))
9704 return STELEMREF_SEALED_CLASS;
9705 return STELEMREF_CLASS;
9711 load_array_element_address (MonoMethodBuilder *mb)
9713 mono_mb_emit_ldarg (mb, 0);
9714 mono_mb_emit_ldarg (mb, 1);
9715 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9719 load_array_class (MonoMethodBuilder *mb, int aklass)
9721 mono_mb_emit_ldarg (mb, 0);
9722 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9723 mono_mb_emit_byte (mb, CEE_LDIND_I);
9724 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9725 mono_mb_emit_byte (mb, CEE_LDIND_I);
9726 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9727 mono_mb_emit_byte (mb, CEE_LDIND_I);
9728 mono_mb_emit_stloc (mb, aklass);
9732 load_value_class (MonoMethodBuilder *mb, int vklass)
9734 mono_mb_emit_ldarg (mb, 2);
9735 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9736 mono_mb_emit_byte (mb, CEE_LDIND_I);
9737 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9738 mono_mb_emit_byte (mb, CEE_LDIND_I);
9739 mono_mb_emit_stloc (mb, vklass);
9745 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9747 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9748 printf ("slow vstore of %s\n", name);
9755 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9756 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9757 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9758 * - Add a case for arrays of arrays.
9761 get_virtual_stelemref_wrapper (int kind)
9763 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9764 static MonoMethodSignature *signature;
9765 MonoMethodBuilder *mb;
9768 const char *param_names [16];
9769 guint32 b1, b2, b3, b4;
9770 int aklass, vklass, vtable, uiid;
9771 int array_slot_addr;
9774 if (cached_methods [kind])
9775 return cached_methods [kind];
9777 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9778 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9782 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9784 /* void this::stelemref (size_t idx, void* value) */
9785 sig->ret = &mono_defaults.void_class->byval_arg;
9786 sig->hasthis = TRUE;
9787 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9788 sig->params [1] = &mono_defaults.object_class->byval_arg;
9793 param_names [0] = "index";
9794 param_names [1] = "value";
9795 mono_mb_set_param_names (mb, param_names);
9797 /*For now simply call plain old stelemref*/
9799 case STELEMREF_OBJECT:
9800 /* ldelema (implicit bound check) */
9801 load_array_element_address (mb);
9803 mono_mb_emit_ldarg (mb, 2);
9804 mono_mb_emit_byte (mb, CEE_STIND_REF);
9805 mono_mb_emit_byte (mb, CEE_RET);
9808 case STELEMREF_COMPLEX: {
9811 <ldelema (bound check)>
9814 if (!mono_object_isinst (value, aklass))
9818 *array_slot_addr = value;
9821 throw new ArrayTypeMismatchException ();
9824 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9825 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9826 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9830 /*Use this to debug/record stores that are going thru the slow path*/
9831 MonoMethodSignature *csig;
9832 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9833 csig->ret = &mono_defaults.void_class->byval_arg;
9834 csig->params [0] = &mono_defaults.object_class->byval_arg;
9835 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9836 csig->params [2] = &mono_defaults.object_class->byval_arg;
9837 mono_mb_emit_ldarg (mb, 0);
9838 mono_mb_emit_ldarg (mb, 1);
9839 mono_mb_emit_ldarg (mb, 2);
9840 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9844 /* ldelema (implicit bound check) */
9845 load_array_element_address (mb);
9846 mono_mb_emit_stloc (mb, array_slot_addr);
9848 /* if (!value) goto do_store */
9849 mono_mb_emit_ldarg (mb, 2);
9850 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9852 /* aklass = array->vtable->klass->element_class */
9853 load_array_class (mb, aklass);
9854 /* vklass = value->vtable->klass */
9855 load_value_class (mb, vklass);
9858 mono_mb_emit_ldloc (mb, vklass);
9859 mono_mb_emit_ldloc (mb, aklass);
9860 b_fast = mono_mb_emit_branch (mb, CEE_BEQ);
9862 /*if (mono_object_isinst (value, aklass)) */
9863 mono_mb_emit_ldarg (mb, 2);
9864 mono_mb_emit_ldloc (mb, aklass);
9865 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9866 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9869 mono_mb_patch_branch (mb, b1);
9870 mono_mb_patch_branch (mb, b_fast);
9871 mono_mb_emit_ldloc (mb, array_slot_addr);
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 mono_mb_patch_branch (mb, b2);
9879 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9882 case STELEMREF_SEALED_CLASS:
9884 <ldelema (bound check)>
9888 aklass = array->vtable->klass->element_class;
9889 vklass = value->vtable->klass;
9891 if (vklass != aklass)
9895 *array_slot_addr = value;
9898 throw new ArrayTypeMismatchException ();
9900 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9901 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9902 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9904 /* ldelema (implicit bound check) */
9905 load_array_element_address (mb);
9906 mono_mb_emit_stloc (mb, array_slot_addr);
9908 /* if (!value) goto do_store */
9909 mono_mb_emit_ldarg (mb, 2);
9910 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9912 /* aklass = array->vtable->klass->element_class */
9913 load_array_class (mb, aklass);
9915 /* vklass = value->vtable->klass */
9916 load_value_class (mb, vklass);
9918 /*if (vklass != aklass) goto do_exception; */
9919 mono_mb_emit_ldloc (mb, aklass);
9920 mono_mb_emit_ldloc (mb, vklass);
9921 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9924 mono_mb_patch_branch (mb, b1);
9925 mono_mb_emit_ldloc (mb, array_slot_addr);
9926 mono_mb_emit_ldarg (mb, 2);
9927 mono_mb_emit_byte (mb, CEE_STIND_REF);
9928 mono_mb_emit_byte (mb, CEE_RET);
9931 mono_mb_patch_branch (mb, b2);
9932 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9935 case STELEMREF_CLASS: {
9938 <ldelema (bound check)>
9942 aklass = array->vtable->klass->element_class;
9943 vklass = value->vtable->klass;
9945 if (vklass->idepth < aklass->idepth)
9948 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9952 *array_slot_addr = value;
9956 throw new ArrayTypeMismatchException ();
9958 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9959 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9960 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9962 /* ldelema (implicit bound check) */
9963 load_array_element_address (mb);
9964 mono_mb_emit_stloc (mb, array_slot_addr);
9966 /* if (!value) goto do_store */
9967 mono_mb_emit_ldarg (mb, 2);
9968 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9970 /* aklass = array->vtable->klass->element_class */
9971 load_array_class (mb, aklass);
9973 /* vklass = value->vtable->klass */
9974 load_value_class (mb, vklass);
9976 /* if (vklass->idepth < aklass->idepth) goto failue */
9977 mono_mb_emit_ldloc (mb, vklass);
9978 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9979 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9981 mono_mb_emit_ldloc (mb, aklass);
9982 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9983 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9985 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9987 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9988 mono_mb_emit_ldloc (mb, vklass);
9989 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9990 mono_mb_emit_byte (mb, CEE_LDIND_I);
9992 mono_mb_emit_ldloc (mb, aklass);
9993 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9994 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9995 mono_mb_emit_icon (mb, 1);
9996 mono_mb_emit_byte (mb, CEE_SUB);
9997 mono_mb_emit_icon (mb, sizeof (void*));
9998 mono_mb_emit_byte (mb, CEE_MUL);
9999 mono_mb_emit_byte (mb, CEE_ADD);
10000 mono_mb_emit_byte (mb, CEE_LDIND_I);
10002 mono_mb_emit_ldloc (mb, aklass);
10003 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10006 mono_mb_patch_branch (mb, b1);
10007 mono_mb_emit_ldloc (mb, array_slot_addr);
10008 mono_mb_emit_ldarg (mb, 2);
10009 mono_mb_emit_byte (mb, CEE_STIND_REF);
10010 mono_mb_emit_byte (mb, CEE_RET);
10012 /* do_exception: */
10013 mono_mb_patch_branch (mb, b3);
10014 mono_mb_patch_branch (mb, b4);
10016 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10019 case STELEMREF_INTERFACE:
10026 klass = array->obj.vtable->klass->element_class;
10027 vt = value->vtable;
10028 uiid = klass->interface_id;
10029 if (uiid > vt->max_interface_id)
10031 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10034 mono_array_setref (array, index, value);
10037 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10039 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10040 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10041 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10042 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10044 /* ldelema (implicit bound check) */
10045 load_array_element_address (mb);
10046 mono_mb_emit_stloc (mb, array_slot_addr);
10048 /* if (!value) goto do_store */
10049 mono_mb_emit_ldarg (mb, 2);
10050 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10052 /* klass = array->vtable->klass->element_class */
10053 load_array_class (mb, aklass);
10055 /* vt = value->vtable */
10056 mono_mb_emit_ldarg (mb, 2);
10057 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10058 mono_mb_emit_byte (mb, CEE_LDIND_I);
10059 mono_mb_emit_stloc (mb, vtable);
10061 /* uiid = klass->interface_id; */
10062 mono_mb_emit_ldloc (mb, aklass);
10063 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
10064 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10065 mono_mb_emit_stloc (mb, uiid);
10067 /*if (uiid > vt->max_interface_id)*/
10068 mono_mb_emit_ldloc (mb, uiid);
10069 mono_mb_emit_ldloc (mb, vtable);
10070 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
10071 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10072 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10074 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10076 /*vt->interface_bitmap*/
10077 mono_mb_emit_ldloc (mb, vtable);
10078 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10079 mono_mb_emit_byte (mb, CEE_LDIND_I);
10082 mono_mb_emit_ldloc (mb, uiid);
10083 mono_mb_emit_icon (mb, 3);
10084 mono_mb_emit_byte (mb, CEE_SHR_UN);
10086 /*vt->interface_bitmap [(uiid) >> 3]*/
10087 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10088 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10090 /*(1 << ((uiid)&7)))*/
10091 mono_mb_emit_icon (mb, 1);
10092 mono_mb_emit_ldloc (mb, uiid);
10093 mono_mb_emit_icon (mb, 7);
10094 mono_mb_emit_byte (mb, CEE_AND);
10095 mono_mb_emit_byte (mb, CEE_SHL);
10097 /*bitwise and the whole thing*/
10098 mono_mb_emit_byte (mb, CEE_AND);
10099 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10102 mono_mb_patch_branch (mb, b1);
10103 mono_mb_emit_ldloc (mb, array_slot_addr);
10104 mono_mb_emit_ldarg (mb, 2);
10105 mono_mb_emit_byte (mb, CEE_STIND_REF);
10106 mono_mb_emit_byte (mb, CEE_RET);
10108 /* do_exception: */
10109 mono_mb_patch_branch (mb, b2);
10110 mono_mb_patch_branch (mb, b3);
10111 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10115 mono_mb_emit_ldarg (mb, 0);
10116 mono_mb_emit_ldarg (mb, 1);
10117 mono_mb_emit_ldarg (mb, 2);
10118 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10119 mono_mb_emit_byte (mb, CEE_RET);
10122 #endif /* DISABLE_JIT */
10123 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10124 info->d.virtual_stelemref.kind = kind;
10125 res = mono_mb_create (mb, signature, 4, info);
10126 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10128 mono_marshal_lock ();
10129 if (!cached_methods [kind]) {
10130 cached_methods [kind] = res;
10131 mono_marshal_unlock ();
10133 mono_marshal_unlock ();
10134 mono_free_method (res);
10138 return cached_methods [kind];
10142 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10146 g_assert (array_class->rank == 1);
10147 kind = get_virtual_stelemref_kind (array_class->element_class);
10149 return get_virtual_stelemref_wrapper (kind);
10153 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10158 *nwrappers = STELEMREF_KIND_COUNT;
10159 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10160 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10161 res [i] = get_virtual_stelemref_wrapper (i);
10166 * mono_marshal_get_stelemref:
10169 mono_marshal_get_stelemref (void)
10171 static MonoMethod* ret = NULL;
10172 MonoMethodSignature *sig;
10173 MonoMethodBuilder *mb;
10176 guint32 b1, b2, b3, b4;
10178 int aklass, vklass;
10179 int array_slot_addr;
10184 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10187 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10189 /* void stelemref (void* array, int idx, void* value) */
10190 sig->ret = &mono_defaults.void_class->byval_arg;
10191 sig->params [0] = &mono_defaults.object_class->byval_arg;
10192 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10193 sig->params [2] = &mono_defaults.object_class->byval_arg;
10195 #ifndef DISABLE_JIT
10196 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10197 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10198 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10202 <ldelema (bound check)>
10206 aklass = array->vtable->klass->element_class;
10207 vklass = value->vtable->klass;
10209 if (vklass->idepth < aklass->idepth)
10212 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10216 *array_slot_addr = value;
10220 if (mono_object_isinst (value, aklass))
10223 throw new ArrayTypeMismatchException ();
10226 /* ldelema (implicit bound check) */
10227 mono_mb_emit_ldarg (mb, 0);
10228 mono_mb_emit_ldarg (mb, 1);
10229 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10230 mono_mb_emit_stloc (mb, array_slot_addr);
10232 /* if (!value) goto do_store */
10233 mono_mb_emit_ldarg (mb, 2);
10234 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10236 /* aklass = array->vtable->klass->element_class */
10237 mono_mb_emit_ldarg (mb, 0);
10238 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10239 mono_mb_emit_byte (mb, CEE_LDIND_I);
10240 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10241 mono_mb_emit_byte (mb, CEE_LDIND_I);
10242 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10243 mono_mb_emit_byte (mb, CEE_LDIND_I);
10244 mono_mb_emit_stloc (mb, aklass);
10246 /* vklass = value->vtable->klass */
10247 mono_mb_emit_ldarg (mb, 2);
10248 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10249 mono_mb_emit_byte (mb, CEE_LDIND_I);
10250 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10251 mono_mb_emit_byte (mb, CEE_LDIND_I);
10252 mono_mb_emit_stloc (mb, vklass);
10254 /* if (vklass->idepth < aklass->idepth) goto failue */
10255 mono_mb_emit_ldloc (mb, vklass);
10256 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10257 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10259 mono_mb_emit_ldloc (mb, aklass);
10260 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10261 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10263 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10265 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10266 mono_mb_emit_ldloc (mb, vklass);
10267 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10268 mono_mb_emit_byte (mb, CEE_LDIND_I);
10270 mono_mb_emit_ldloc (mb, aklass);
10271 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10272 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10273 mono_mb_emit_icon (mb, 1);
10274 mono_mb_emit_byte (mb, CEE_SUB);
10275 mono_mb_emit_icon (mb, sizeof (void*));
10276 mono_mb_emit_byte (mb, CEE_MUL);
10277 mono_mb_emit_byte (mb, CEE_ADD);
10278 mono_mb_emit_byte (mb, CEE_LDIND_I);
10280 mono_mb_emit_ldloc (mb, aklass);
10282 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10284 copy_pos = mono_mb_get_label (mb);
10286 mono_mb_patch_branch (mb, b1);
10287 mono_mb_emit_ldloc (mb, array_slot_addr);
10288 mono_mb_emit_ldarg (mb, 2);
10289 mono_mb_emit_byte (mb, CEE_STIND_REF);
10291 mono_mb_emit_byte (mb, CEE_RET);
10294 mono_mb_patch_branch (mb, b2);
10295 mono_mb_patch_branch (mb, b3);
10297 mono_mb_emit_ldarg (mb, 2);
10298 mono_mb_emit_ldloc (mb, aklass);
10299 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10301 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10302 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10303 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10305 mono_mb_emit_byte (mb, CEE_RET);
10307 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10308 ret = mono_mb_create (mb, sig, 4, info);
10315 * mono_marshal_get_gsharedvt_in_wrapper:
10317 * This wrapper handles calls from normal code to gsharedvt code.
10320 mono_marshal_get_gsharedvt_in_wrapper (void)
10322 static MonoMethod* ret = NULL;
10323 MonoMethodSignature *sig;
10324 MonoMethodBuilder *mb;
10330 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10332 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10333 sig->ret = &mono_defaults.void_class->byval_arg;
10335 #ifndef DISABLE_JIT
10337 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10339 mono_mb_emit_byte (mb, CEE_RET);
10341 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10342 ret = mono_mb_create (mb, sig, 4, info);
10349 * mono_marshal_get_gsharedvt_out_wrapper:
10351 * This wrapper handles calls from gsharedvt code to normal code.
10354 mono_marshal_get_gsharedvt_out_wrapper (void)
10356 static MonoMethod* ret = NULL;
10357 MonoMethodSignature *sig;
10358 MonoMethodBuilder *mb;
10364 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10366 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10367 sig->ret = &mono_defaults.void_class->byval_arg;
10369 #ifndef DISABLE_JIT
10371 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10373 mono_mb_emit_byte (mb, CEE_RET);
10375 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10376 ret = mono_mb_create (mb, sig, 4, info);
10385 MonoMethod *method;
10388 /* LOCKING: vars accessed under the marshal lock */
10389 static ArrayElemAddr *elem_addr_cache = NULL;
10390 static int elem_addr_cache_size = 0;
10391 static int elem_addr_cache_next = 0;
10394 * mono_marshal_get_array_address:
10395 * \param rank rank of the array type
10396 * \param elem_size size in bytes of an element of an array.
10398 * Returns a MonoMethod that implements the code to get the address
10399 * of an element in a multi-dimenasional array of \p rank dimensions.
10400 * The returned method takes an array as the first argument and then
10401 * \p rank indexes for the \p rank dimensions.
10402 * If ELEM_SIZE is 0, read the array size from the array object.
10405 mono_marshal_get_array_address (int rank, int elem_size)
10408 MonoMethodBuilder *mb;
10409 MonoMethodSignature *sig;
10412 int i, bounds, ind, realidx;
10413 int branch_pos, *branch_positions;
10417 mono_marshal_lock ();
10418 for (i = 0; i < elem_addr_cache_next; ++i) {
10419 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10420 ret = elem_addr_cache [i].method;
10424 mono_marshal_unlock ();
10428 branch_positions = g_new0 (int, rank);
10430 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10432 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10433 sig->ret = &mono_defaults.int_class->byval_arg;
10434 sig->params [0] = &mono_defaults.object_class->byval_arg;
10435 for (i = 0; i < rank; ++i) {
10436 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10439 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10440 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10443 #ifndef DISABLE_JIT
10444 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10445 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10446 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10448 /* bounds = array->bounds; */
10449 mono_mb_emit_ldarg (mb, 0);
10450 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10451 mono_mb_emit_byte (mb, CEE_LDIND_I);
10452 mono_mb_emit_stloc (mb, bounds);
10454 /* ind is the overall element index, realidx is the partial index in a single dimension */
10455 /* ind = idx0 - bounds [0].lower_bound */
10456 mono_mb_emit_ldarg (mb, 1);
10457 mono_mb_emit_ldloc (mb, bounds);
10458 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10459 mono_mb_emit_byte (mb, CEE_ADD);
10460 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10461 mono_mb_emit_byte (mb, CEE_SUB);
10462 mono_mb_emit_stloc (mb, ind);
10463 /* if (ind >= bounds [0].length) goto exeception; */
10464 mono_mb_emit_ldloc (mb, ind);
10465 mono_mb_emit_ldloc (mb, bounds);
10466 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10467 mono_mb_emit_byte (mb, CEE_ADD);
10468 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10469 /* note that we use unsigned comparison */
10470 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10472 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10473 * We could also decide to ignore the passed elem_size and get it
10474 * from the array object, to reduce the number of methods we generate:
10475 * the additional cost is 3 memory loads and a non-immediate mul.
10477 for (i = 1; i < rank; ++i) {
10478 /* realidx = idxi - bounds [i].lower_bound */
10479 mono_mb_emit_ldarg (mb, 1 + i);
10480 mono_mb_emit_ldloc (mb, bounds);
10481 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10482 mono_mb_emit_byte (mb, CEE_ADD);
10483 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10484 mono_mb_emit_byte (mb, CEE_SUB);
10485 mono_mb_emit_stloc (mb, realidx);
10486 /* if (realidx >= bounds [i].length) goto exeception; */
10487 mono_mb_emit_ldloc (mb, realidx);
10488 mono_mb_emit_ldloc (mb, bounds);
10489 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10490 mono_mb_emit_byte (mb, CEE_ADD);
10491 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10492 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10493 /* ind = ind * bounds [i].length + realidx */
10494 mono_mb_emit_ldloc (mb, ind);
10495 mono_mb_emit_ldloc (mb, bounds);
10496 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10497 mono_mb_emit_byte (mb, CEE_ADD);
10498 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10499 mono_mb_emit_byte (mb, CEE_MUL);
10500 mono_mb_emit_ldloc (mb, realidx);
10501 mono_mb_emit_byte (mb, CEE_ADD);
10502 mono_mb_emit_stloc (mb, ind);
10505 /* return array->vector + ind * element_size */
10506 mono_mb_emit_ldarg (mb, 0);
10507 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10508 mono_mb_emit_ldloc (mb, ind);
10510 mono_mb_emit_icon (mb, elem_size);
10512 /* Load arr->vtable->klass->sizes.element_class */
10513 mono_mb_emit_ldarg (mb, 0);
10514 mono_mb_emit_byte (mb, CEE_CONV_I);
10515 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10516 mono_mb_emit_byte (mb, CEE_ADD);
10517 mono_mb_emit_byte (mb, CEE_LDIND_I);
10518 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10519 mono_mb_emit_byte (mb, CEE_ADD);
10520 mono_mb_emit_byte (mb, CEE_LDIND_I);
10521 /* sizes is an union, so this reads sizes.element_size */
10522 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10523 mono_mb_emit_byte (mb, CEE_ADD);
10524 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10526 mono_mb_emit_byte (mb, CEE_MUL);
10527 mono_mb_emit_byte (mb, CEE_ADD);
10528 mono_mb_emit_byte (mb, CEE_RET);
10530 /* patch the branches to get here and throw */
10531 for (i = 1; i < rank; ++i) {
10532 mono_mb_patch_branch (mb, branch_positions [i]);
10534 mono_mb_patch_branch (mb, branch_pos);
10535 /* throw exception */
10536 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10538 g_free (branch_positions);
10539 #endif /* DISABLE_JIT */
10541 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10542 info->d.element_addr.rank = rank;
10543 info->d.element_addr.elem_size = elem_size;
10544 ret = mono_mb_create (mb, sig, 4, info);
10547 /* cache the result */
10549 mono_marshal_lock ();
10550 for (i = 0; i < elem_addr_cache_next; ++i) {
10551 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10552 /* FIXME: free ret */
10553 ret = elem_addr_cache [i].method;
10559 if (elem_addr_cache_next >= elem_addr_cache_size) {
10560 int new_size = elem_addr_cache_size + 4;
10561 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10562 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10563 g_free (elem_addr_cache);
10564 elem_addr_cache = new_array;
10565 elem_addr_cache_size = new_size;
10567 elem_addr_cache [elem_addr_cache_next].rank = rank;
10568 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10569 elem_addr_cache [elem_addr_cache_next].method = ret;
10570 elem_addr_cache_next ++;
10572 mono_marshal_unlock ();
10577 * mono_marshal_get_array_accessor_wrapper:
10579 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10582 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10584 MonoMethodSignature *sig;
10585 MonoMethodBuilder *mb;
10589 MonoGenericContext *ctx = NULL;
10590 MonoMethod *orig_method = NULL;
10591 MonoGenericContainer *container = NULL;
10595 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10596 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10597 * FIXME: Use generic methods.
10604 g_assert_not_reached ();
10606 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10607 if ((res = mono_marshal_find_in_cache (cache, method)))
10611 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10614 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10616 #ifndef DISABLE_JIT
10617 /* Call the method */
10619 mono_mb_emit_ldarg (mb, 0);
10620 for (i = 0; i < sig->param_count; i++)
10621 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10625 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10626 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10628 mono_mb_emit_managed_call (mb, method, NULL);
10630 mono_mb_emit_byte (mb, CEE_RET);
10633 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10634 info->d.array_accessor.method = method;
10638 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10639 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10641 res = mono_mb_create_and_cache_full (cache, method,
10642 mb, sig, sig->param_count + 16,
10651 static inline void*
10652 mono_marshal_alloc_co_task_mem (size_t size)
10654 if ((gulong)size == 0)
10655 /* This returns a valid pointer for size 0 on MS.NET */
10658 return g_try_malloc ((gulong)size);
10663 * mono_marshal_alloc:
10666 mono_marshal_alloc (gsize size, MonoError *error)
10670 error_init (error);
10672 res = mono_marshal_alloc_co_task_mem (size);
10674 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10679 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10681 ves_icall_marshal_alloc (gsize size)
10684 void *ret = mono_marshal_alloc (size, &error);
10685 if (!mono_error_ok (&error)) {
10686 mono_error_set_pending_exception (&error);
10695 mono_marshal_free_co_task_mem (void *ptr)
10703 * mono_marshal_free:
10706 mono_marshal_free (gpointer ptr)
10708 mono_marshal_free_co_task_mem (ptr);
10712 * mono_marshal_free_array:
10715 mono_marshal_free_array (gpointer *ptr, int size)
10722 for (i = 0; i < size; i++)
10728 mono_marshal_string_to_utf16 (MonoString *s)
10730 return s ? mono_string_chars (s) : NULL;
10733 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10735 mono_marshal_string_to_utf16_copy (MonoString *s)
10741 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10742 if (!mono_error_ok (&error)) {
10743 mono_error_set_pending_exception (&error);
10746 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10747 res [mono_string_length (s)] = 0;
10753 * mono_marshal_set_last_error:
10755 * This function is invoked to set the last error value from a P/Invoke call
10756 * which has \c SetLastError set.
10759 mono_marshal_set_last_error (void)
10762 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10764 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10769 mono_marshal_set_last_error_windows (int error)
10772 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10777 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10778 gpointer dest, gint32 length)
10783 MONO_CHECK_ARG_NULL (src,);
10784 MONO_CHECK_ARG_NULL (dest,);
10786 if (src->obj.vtable->klass->rank != 1) {
10787 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10790 if (start_index < 0) {
10791 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10795 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10798 if (start_index + length > mono_array_length (src)) {
10799 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10803 element_size = mono_array_element_size (src->obj.vtable->klass);
10805 /* no references should be involved */
10806 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10808 memcpy (dest, source_addr, length * element_size);
10812 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10813 MonoArray *dest, gint32 length)
10818 MONO_CHECK_ARG_NULL (src,);
10819 MONO_CHECK_ARG_NULL (dest,);
10821 if (dest->obj.vtable->klass->rank != 1) {
10822 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10825 if (start_index < 0) {
10826 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10830 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10833 if (start_index + length > mono_array_length (dest)) {
10834 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10837 element_size = mono_array_element_size (dest->obj.vtable->klass);
10839 /* no references should be involved */
10840 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10842 memcpy (dest_addr, src, length * element_size);
10846 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10851 return mono_string_new (mono_domain_get (), ptr);
10855 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10858 MonoString *result = NULL;
10859 error_init (&error);
10861 mono_error_set_argument_null (&error, "ptr", "");
10863 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10864 mono_error_set_pending_exception (&error);
10869 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10872 MonoString *res = NULL;
10873 MonoDomain *domain = mono_domain_get ();
10883 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10884 if (!mono_error_ok (&error)) {
10885 mono_error_set_pending_exception (&error);
10892 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10895 MonoString *res = NULL;
10896 MonoDomain *domain = mono_domain_get ();
10898 error_init (&error);
10902 mono_error_set_argument_null (&error, "ptr", "");
10904 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10907 if (!mono_error_ok (&error))
10908 mono_error_set_pending_exception (&error);
10913 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10915 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10919 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10925 MONO_CHECK_ARG_NULL (rtype, 0);
10927 type = rtype->type;
10928 klass = mono_class_from_mono_type (type);
10929 if (!mono_class_init (klass)) {
10930 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10934 layout = (mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK);
10936 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10937 return sizeof (gpointer);
10938 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10940 MonoException *exc;
10942 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10943 exc = mono_get_exception_argument ("t", msg);
10945 mono_set_pending_exception (exc);
10949 return mono_class_native_size (klass, NULL);
10953 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10956 MonoMethod *method;
10959 MONO_CHECK_ARG_NULL (obj,);
10960 MONO_CHECK_ARG_NULL (dst,);
10962 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10966 pa [2] = &delete_old;
10968 mono_runtime_invoke_checked (method, NULL, pa, &error);
10969 if (!mono_error_ok (&error))
10970 mono_error_set_pending_exception (&error);
10974 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10976 MonoMethod *method;
10979 error_init (error);
10981 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10986 mono_runtime_invoke_checked (method, NULL, pa, error);
10990 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10995 MONO_CHECK_ARG_NULL (src,);
10996 MONO_CHECK_ARG_NULL (dst,);
10998 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
11000 if (t->type == MONO_TYPE_VALUETYPE) {
11001 MonoException *exc;
11004 tmp = g_strdup_printf ("Destination is a boxed value type.");
11005 exc = mono_get_exception_argument ("dst", tmp);
11008 mono_set_pending_exception (exc);
11012 ptr_to_structure (src, dst, &error);
11013 if (!mono_error_ok (&error))
11014 mono_error_set_pending_exception (&error);
11018 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
11022 MonoDomain *domain = mono_domain_get ();
11027 MONO_CHECK_ARG_NULL (type, NULL);
11029 klass = mono_class_from_mono_type (type->type);
11030 if (!mono_class_init (klass)) {
11031 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11035 res = mono_object_new_checked (domain, klass, &error);
11036 if (!mono_error_ok (&error)) {
11037 mono_error_set_pending_exception (&error);
11041 ptr_to_structure (src, res, &error);
11042 if (!mono_error_ok (&error)) {
11043 mono_error_set_pending_exception (&error);
11051 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
11054 MonoMarshalType *info;
11057 int match_index = -1;
11059 MONO_CHECK_ARG_NULL (type, 0);
11060 MONO_CHECK_ARG_NULL (field_name, 0);
11062 fname = mono_string_to_utf8_checked (field_name, &error);
11063 if (mono_error_set_pending_exception (&error))
11065 klass = mono_class_from_mono_type (type->type);
11066 if (!mono_class_init (klass)) {
11067 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11071 while (klass && match_index == -1) {
11072 MonoClassField* field;
11074 gpointer iter = NULL;
11075 while ((field = mono_class_get_fields (klass, &iter))) {
11076 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11078 if (!strcmp (fname, mono_field_get_name (field))) {
11085 if (match_index == -1)
11086 klass = klass->parent;
11091 if(match_index == -1) {
11092 MonoException* exc;
11095 /* Get back original class instance */
11096 klass = mono_class_from_mono_type (type->type);
11098 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
11099 exc = mono_get_exception_argument ("fieldName", tmp);
11102 mono_set_pending_exception ((MonoException*)exc);
11106 info = mono_marshal_load_type_info (klass);
11107 return info->fields [match_index].offset;
11112 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11115 char *ret = mono_string_to_utf8_checked (string, &error);
11116 mono_error_set_pending_exception (&error);
11121 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11123 if (string == NULL)
11126 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
11128 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11129 res [mono_string_length (string)] = 0;
11133 #endif /* !HOST_WIN32 */
11136 mono_struct_delete_old (MonoClass *klass, char *ptr)
11138 MonoMarshalType *info;
11141 info = mono_marshal_load_type_info (klass);
11143 for (i = 0; i < info->num_fields; i++) {
11144 MonoMarshalConv conv;
11145 MonoType *ftype = info->fields [i].field->type;
11148 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11151 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11152 klass->unicode, &conv);
11154 cpos = ptr + info->fields [i].offset;
11157 case MONO_MARSHAL_CONV_NONE:
11158 if (MONO_TYPE_ISSTRUCT (ftype)) {
11159 mono_struct_delete_old (ftype->data.klass, cpos);
11163 case MONO_MARSHAL_CONV_STR_LPWSTR:
11164 /* We assume this field points inside a MonoString */
11166 case MONO_MARSHAL_CONV_STR_LPTSTR:
11167 #ifdef TARGET_WIN32
11168 /* We assume this field points inside a MonoString
11172 case MONO_MARSHAL_CONV_STR_LPSTR:
11173 case MONO_MARSHAL_CONV_STR_BSTR:
11174 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11175 case MONO_MARSHAL_CONV_STR_TBSTR:
11176 case MONO_MARSHAL_CONV_STR_UTF8STR:
11177 mono_marshal_free (*(gpointer *)cpos);
11187 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11191 MONO_CHECK_ARG_NULL (src,);
11192 MONO_CHECK_ARG_NULL (type,);
11194 klass = mono_class_from_mono_type (type->type);
11195 if (!mono_class_init (klass)) {
11196 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11200 mono_struct_delete_old (klass, (char *)src);
11204 static inline void *
11205 mono_marshal_alloc_hglobal (size_t size)
11207 return g_try_malloc (size);
11212 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11215 size_t s = (size_t)size;
11218 /* This returns a valid pointer for size 0 on MS.NET */
11221 res = mono_marshal_alloc_hglobal (s);
11224 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11232 static inline gpointer
11233 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11235 return g_try_realloc (ptr, size);
11240 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11243 size_t s = (size_t)size;
11246 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11250 res = mono_marshal_realloc_hglobal (ptr, s);
11253 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11262 mono_marshal_free_hglobal (gpointer ptr)
11270 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11272 mono_marshal_free_hglobal (ptr);
11276 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11278 void *res = mono_marshal_alloc_co_task_mem (size);
11281 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11288 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11290 void *res = mono_marshal_alloc_co_task_mem (size);
11293 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11300 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11302 mono_marshal_free_co_task_mem (ptr);
11307 static inline gpointer
11308 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11310 return g_try_realloc (ptr, (gulong)size);
11315 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11317 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11320 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11327 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11329 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11333 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11335 MonoClass *klass = mono_type_get_class (type->type);
11336 if (!mono_class_init (klass)) {
11337 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11341 return mono_ftnptr_to_delegate (klass, ftn);
11345 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11347 return mono_delegate_to_ftnptr (delegate);
11351 * mono_marshal_is_loading_type_info:
11353 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11357 mono_marshal_is_loading_type_info (MonoClass *klass)
11359 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11361 return g_slist_find (loads_list, klass) != NULL;
11365 * mono_marshal_load_type_info:
11367 * Initialize \c klass::marshal_info using information from metadata. This function can
11368 * recursively call itself, and the caller is responsible to avoid that by calling
11369 * \c mono_marshal_is_loading_type_info beforehand.
11371 * LOCKING: Acquires the loader lock.
11374 mono_marshal_load_type_info (MonoClass* klass)
11377 guint32 native_size = 0, min_align = 1, packing;
11378 MonoMarshalType *info;
11379 MonoClassField* field;
11382 GSList *loads_list;
11384 g_assert (klass != NULL);
11386 info = mono_class_get_marshal_info (klass);
11390 if (!klass->inited)
11391 mono_class_init (klass);
11393 info = mono_class_get_marshal_info (klass);
11398 * This function can recursively call itself, so we keep the list of classes which are
11399 * under initialization in a TLS list.
11401 g_assert (!mono_marshal_is_loading_type_info (klass));
11402 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11403 loads_list = g_slist_prepend (loads_list, klass);
11404 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11407 while ((field = mono_class_get_fields (klass, &iter))) {
11408 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11410 if (mono_field_is_deleted (field))
11415 layout = mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK;
11417 /* The mempool is protected by the loader lock */
11418 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11419 info->num_fields = count;
11421 /* Try to find a size for this type in metadata */
11422 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11424 if (klass->parent) {
11425 int parent_size = mono_class_native_size (klass->parent, NULL);
11427 /* Add parent size to real size */
11428 native_size += parent_size;
11429 info->native_size = parent_size;
11432 packing = klass->packing_size ? klass->packing_size : 8;
11435 while ((field = mono_class_get_fields (klass, &iter))) {
11439 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11442 if (mono_field_is_deleted (field))
11444 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11445 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11446 NULL, NULL, &info->fields [j].mspec);
11448 info->fields [j].field = field;
11450 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11451 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11452 /* This field is a hack inserted by MCS to empty structures */
11457 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11458 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11459 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11460 &align, TRUE, klass->unicode);
11461 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11462 min_align = MAX (align, min_align);
11463 info->fields [j].offset = info->native_size;
11464 info->fields [j].offset += align - 1;
11465 info->fields [j].offset &= ~(align - 1);
11466 info->native_size = info->fields [j].offset + size;
11468 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11469 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11470 &align, TRUE, klass->unicode);
11471 min_align = MAX (align, min_align);
11472 info->fields [j].offset = field->offset - sizeof (MonoObject);
11473 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11479 if (klass->byval_arg.type == MONO_TYPE_PTR)
11480 info->native_size = sizeof (gpointer);
11482 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11483 info->native_size = MAX (native_size, info->native_size);
11485 * If the provided Size is equal or larger than the calculated size, and there
11486 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11488 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11489 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11492 min_align = MIN (min_align, packing);
11496 if (info->native_size & (min_align - 1)) {
11497 info->native_size += min_align - 1;
11498 info->native_size &= ~(min_align - 1);
11501 info->min_align = min_align;
11503 /* Update the class's blittable info, if the layouts don't match */
11504 if (info->native_size != mono_class_value_size (klass, NULL))
11505 klass->blittable = FALSE;
11507 /* If this is an array type, ensure that we have element info */
11508 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11509 mono_marshal_load_type_info (klass->element_class);
11512 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11513 loads_list = g_slist_remove (loads_list, klass);
11514 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11516 mono_marshal_lock ();
11517 MonoMarshalType *info2 = mono_class_get_marshal_info (klass);
11519 /*We do double-checking locking on marshal_info */
11520 mono_memory_barrier ();
11521 mono_class_set_marshal_info (klass, info);
11522 ++class_marshal_info_count;
11525 mono_marshal_unlock ();
11531 * mono_class_native_size:
11532 * \param klass a class
11533 * \returns the native size of an object instance (when marshaled
11534 * to unmanaged code)
11537 mono_class_native_size (MonoClass *klass, guint32 *align)
11539 MonoMarshalType *info = mono_class_get_marshal_info (klass);
11541 if (mono_marshal_is_loading_type_info (klass)) {
11546 mono_marshal_load_type_info (klass);
11548 info = mono_class_get_marshal_info (klass);
11552 *align = info->min_align;
11554 return info->native_size;
11558 * mono_type_native_stack_size:
11559 * @t: the type to return the size it uses on the stack
11561 * Returns: the number of bytes required to hold an instance of this
11562 * type on the native stack
11565 mono_type_native_stack_size (MonoType *t, guint32 *align)
11569 g_assert (t != NULL);
11575 *align = sizeof (gpointer);
11576 return sizeof (gpointer);
11580 case MONO_TYPE_BOOLEAN:
11581 case MONO_TYPE_CHAR:
11592 case MONO_TYPE_STRING:
11593 case MONO_TYPE_OBJECT:
11594 case MONO_TYPE_CLASS:
11595 case MONO_TYPE_SZARRAY:
11596 case MONO_TYPE_PTR:
11597 case MONO_TYPE_FNPTR:
11598 case MONO_TYPE_ARRAY:
11599 *align = sizeof (gpointer);
11600 return sizeof (gpointer);
11605 *align = MONO_ABI_ALIGNOF (double);
11609 *align = MONO_ABI_ALIGNOF (gint64);
11611 case MONO_TYPE_GENERICINST:
11612 if (!mono_type_generic_inst_is_valuetype (t)) {
11613 *align = sizeof (gpointer);
11614 return sizeof (gpointer);
11617 case MONO_TYPE_TYPEDBYREF:
11618 case MONO_TYPE_VALUETYPE: {
11620 MonoClass *klass = mono_class_from_mono_type (t);
11622 if (klass->enumtype)
11623 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11625 size = mono_class_native_size (klass, align);
11626 *align = *align + 3;
11636 g_error ("type 0x%02x unknown", t->type);
11642 * mono_marshal_type_size:
11645 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11646 gboolean as_field, gboolean unicode)
11648 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11651 switch (native_type) {
11652 case MONO_NATIVE_BOOLEAN:
11655 case MONO_NATIVE_I1:
11656 case MONO_NATIVE_U1:
11659 case MONO_NATIVE_I2:
11660 case MONO_NATIVE_U2:
11661 case MONO_NATIVE_VARIANTBOOL:
11664 case MONO_NATIVE_I4:
11665 case MONO_NATIVE_U4:
11666 case MONO_NATIVE_ERROR:
11669 case MONO_NATIVE_I8:
11670 case MONO_NATIVE_U8:
11671 *align = MONO_ABI_ALIGNOF (gint64);
11673 case MONO_NATIVE_R4:
11676 case MONO_NATIVE_R8:
11677 *align = MONO_ABI_ALIGNOF (double);
11679 case MONO_NATIVE_INT:
11680 case MONO_NATIVE_UINT:
11681 case MONO_NATIVE_LPSTR:
11682 case MONO_NATIVE_LPWSTR:
11683 case MONO_NATIVE_LPTSTR:
11684 case MONO_NATIVE_BSTR:
11685 case MONO_NATIVE_ANSIBSTR:
11686 case MONO_NATIVE_TBSTR:
11687 case MONO_NATIVE_UTF8STR:
11688 case MONO_NATIVE_LPARRAY:
11689 case MONO_NATIVE_SAFEARRAY:
11690 case MONO_NATIVE_IUNKNOWN:
11691 case MONO_NATIVE_IDISPATCH:
11692 case MONO_NATIVE_INTERFACE:
11693 case MONO_NATIVE_ASANY:
11694 case MONO_NATIVE_FUNC:
11695 case MONO_NATIVE_LPSTRUCT:
11696 *align = MONO_ABI_ALIGNOF (gpointer);
11697 return sizeof (gpointer);
11698 case MONO_NATIVE_STRUCT:
11699 klass = mono_class_from_mono_type (type);
11700 if (klass == mono_defaults.object_class &&
11701 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11705 return mono_class_native_size (klass, align);
11706 case MONO_NATIVE_BYVALTSTR: {
11707 int esize = unicode ? 2: 1;
11710 return mspec->data.array_data.num_elem * esize;
11712 case MONO_NATIVE_BYVALARRAY: {
11713 // FIXME: Have to consider ArraySubType
11715 klass = mono_class_from_mono_type (type);
11716 if (klass->element_class == mono_defaults.char_class) {
11717 esize = unicode ? 2 : 1;
11720 esize = mono_class_native_size (klass->element_class, align);
11723 return mspec->data.array_data.num_elem * esize;
11725 case MONO_NATIVE_CUSTOM:
11726 *align = sizeof (gpointer);
11727 return sizeof (gpointer);
11729 case MONO_NATIVE_CURRENCY:
11730 case MONO_NATIVE_VBBYREFSTR:
11732 g_error ("native type %02x not implemented", native_type);
11735 g_assert_not_reached ();
11740 * mono_marshal_asany:
11741 * This is a JIT icall, it sets the pending exception and returns NULL on error.
11744 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11753 t = &o->vtable->klass->byval_arg;
11757 case MONO_TYPE_PTR:
11760 case MONO_TYPE_BOOLEAN:
11763 case MONO_TYPE_CHAR:
11768 return mono_object_unbox (o);
11770 case MONO_TYPE_STRING:
11771 switch (string_encoding) {
11772 case MONO_NATIVE_LPWSTR:
11773 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11774 case MONO_NATIVE_LPSTR:
11775 case MONO_NATIVE_UTF8STR:
11776 // Same code path, because in Mono, we treated strings as Utf8
11777 return mono_string_to_utf8str ((MonoString*)o);
11779 g_warning ("marshaling conversion %d not implemented", string_encoding);
11780 g_assert_not_reached ();
11783 case MONO_TYPE_CLASS:
11784 case MONO_TYPE_VALUETYPE: {
11785 MonoMethod *method;
11788 MonoBoolean delete_old = FALSE;
11790 klass = t->data.klass;
11792 if (mono_class_is_auto_layout (klass))
11795 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11796 return mono_object_unbox (o);
11798 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11799 if (!mono_error_ok (&error)) {
11800 mono_error_set_pending_exception (&error);
11804 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11805 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11809 pa [2] = &delete_old;
11811 mono_runtime_invoke_checked (method, NULL, pa, &error);
11812 if (!mono_error_ok (&error)) {
11813 mono_error_set_pending_exception (&error);
11823 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11828 * mono_marshal_free_asany:
11829 * This is a JIT icall, it sets the pending exception
11832 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11841 t = &o->vtable->klass->byval_arg;
11843 case MONO_TYPE_STRING:
11844 switch (string_encoding) {
11845 case MONO_NATIVE_LPWSTR:
11846 case MONO_NATIVE_LPSTR:
11847 case MONO_NATIVE_UTF8STR:
11848 mono_marshal_free (ptr);
11851 g_warning ("marshaling conversion %d not implemented", string_encoding);
11852 g_assert_not_reached ();
11855 case MONO_TYPE_CLASS:
11856 case MONO_TYPE_VALUETYPE: {
11857 klass = t->data.klass;
11859 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11862 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11863 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11869 mono_runtime_invoke_checked (method, NULL, pa, &error);
11870 if (!mono_error_ok (&error)) {
11871 mono_error_set_pending_exception (&error);
11876 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11877 mono_struct_delete_old (klass, (char *)ptr);
11880 mono_marshal_free (ptr);
11889 * mono_marshal_get_generic_array_helper:
11891 * Return a wrapper which is used to implement the implicit interfaces on arrays.
11892 * The wrapper routes calls to METHOD, which is one of the InternalArray_ methods in Array.
11895 mono_marshal_get_generic_array_helper (MonoClass *klass, gchar *name, MonoMethod *method)
11897 MonoMethodSignature *sig, *csig;
11898 MonoMethodBuilder *mb;
11903 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11904 mb->method->slot = -1;
11906 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11907 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11909 sig = mono_method_signature (method);
11910 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11911 csig->generic_param_count = 0;
11913 #ifndef DISABLE_JIT
11914 mono_mb_emit_ldarg (mb, 0);
11915 for (i = 0; i < csig->param_count; i++)
11916 mono_mb_emit_ldarg (mb, i + 1);
11917 mono_mb_emit_managed_call (mb, method, NULL);
11918 mono_mb_emit_byte (mb, CEE_RET);
11920 /* We can corlib internal methods */
11921 mb->skip_visibility = TRUE;
11923 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11924 info->d.generic_array_helper.method = method;
11925 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11933 * The mono_win32_compat_* functions are implementations of inline
11934 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11935 * although not exported by kernel32.
11937 * We map the appropiate kernel32 entries to these functions using
11938 * dllmaps declared in the global etc/mono/config.
11942 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11944 if (!dest || !source)
11947 memcpy (dest, source, length);
11951 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11953 memset (dest, fill, length);
11957 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11959 if (!dest || !source)
11962 memmove (dest, source, length);
11966 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11968 memset (dest, 0, length);
11972 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11977 for (i = 0; i < len; ++i)
11981 g_assert (i < len);
11984 while (byte && !(byte & 1))
11986 g_assert (byte == 1);
11989 *bitmask = buf [i];
11993 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11995 MonoMethodBuilder *mb;
11996 MonoMethodSignature *sig, *csig;
11997 MonoExceptionClause *clause;
12002 int i, param_count, sig_size, pos_leave;
12006 // FIXME: we need to store the exception into a MonoHandle
12007 g_assert (!mono_threads_is_coop_enabled ());
12009 klass = method->klass;
12010 image = method->klass->image;
12012 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12014 if ((res = mono_marshal_find_in_cache (cache, method)))
12017 sig = mono_method_signature (method);
12018 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12020 /* add "this" and exception param */
12021 param_count = sig->param_count + sig->hasthis + 1;
12023 /* dup & extend signature */
12024 csig = mono_metadata_signature_alloc (image, param_count);
12025 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
12026 memcpy (csig, sig, sig_size);
12027 csig->param_count = param_count;
12030 csig->call_convention = MONO_CALL_DEFAULT;
12032 if (sig->hasthis) {
12034 csig->params [0] = &klass->byval_arg;
12035 /* move params up by one */
12036 for (i = 0; i < sig->param_count; i++)
12037 csig->params [i + 1] = sig->params [i];
12040 /* setup exception param as byref+[out] */
12041 csig->params [param_count - 1] = mono_metadata_type_dup (image,
12042 &mono_defaults.exception_class->byval_arg);
12043 csig->params [param_count - 1]->byref = 1;
12044 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12046 /* convert struct return to object */
12047 if (MONO_TYPE_ISSTRUCT (sig->ret))
12048 csig->ret = &mono_defaults.object_class->byval_arg;
12050 #ifndef DISABLE_JIT
12051 /* local 0 (temp for exception object) */
12052 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12054 /* local 1 (temp for result) */
12055 if (!MONO_TYPE_IS_VOID (sig->ret))
12056 mono_mb_add_local (mb, sig->ret);
12058 /* clear exception arg */
12059 mono_mb_emit_ldarg (mb, param_count - 1);
12060 mono_mb_emit_byte (mb, CEE_LDNULL);
12061 mono_mb_emit_byte (mb, CEE_STIND_REF);
12064 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12065 clause->try_offset = mono_mb_get_label (mb);
12067 /* push method's args */
12068 for (i = 0; i < param_count - 1; i++) {
12072 mono_mb_emit_ldarg (mb, i);
12074 /* get the byval type of the param */
12075 klass = mono_class_from_mono_type (csig->params [i]);
12076 type = &klass->byval_arg;
12078 /* unbox struct args */
12079 if (MONO_TYPE_ISSTRUCT (type)) {
12080 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12082 /* byref args & and the "this" arg must remain a ptr.
12083 Otherwise make a copy of the value type */
12084 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12085 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12087 csig->params [i] = &mono_defaults.object_class->byval_arg;
12092 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12093 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12095 mono_mb_emit_op (mb, CEE_CALL, method);
12097 /* save result at local 1 */
12098 if (!MONO_TYPE_IS_VOID (sig->ret))
12099 mono_mb_emit_stloc (mb, 1);
12101 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12104 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12105 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12106 clause->data.catch_class = mono_defaults.object_class;
12108 clause->handler_offset = mono_mb_get_label (mb);
12110 /* store exception at local 0 */
12111 mono_mb_emit_stloc (mb, 0);
12112 mono_mb_emit_ldarg (mb, param_count - 1);
12113 mono_mb_emit_ldloc (mb, 0);
12114 mono_mb_emit_byte (mb, CEE_STIND_REF);
12115 mono_mb_emit_branch (mb, CEE_LEAVE);
12117 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12119 mono_mb_set_clauses (mb, 1, clause);
12121 mono_mb_patch_branch (mb, pos_leave);
12124 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12125 mono_mb_emit_ldloc (mb, 1);
12127 /* box the return value */
12128 if (MONO_TYPE_ISSTRUCT (sig->ret))
12129 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12132 mono_mb_emit_byte (mb, CEE_RET);
12135 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12142 * mono_marshal_free_dynamic_wrappers:
12144 * Free wrappers of the dynamic method METHOD.
12147 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12149 MonoImage *image = method->klass->image;
12151 g_assert (method_is_dynamic (method));
12153 /* This could be called during shutdown */
12154 if (marshal_mutex_initialized)
12155 mono_marshal_lock ();
12157 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12158 * they could be shared with other methods ?
12160 if (image->wrapper_caches.runtime_invoke_direct_cache)
12161 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
12162 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12163 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12164 // FIXME: Need to clear the caches in other images as well
12165 if (image->delegate_bound_static_invoke_cache)
12166 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12168 if (marshal_mutex_initialized)
12169 mono_marshal_unlock ();
12173 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12175 g_assert (ftnptr_eh_callback);
12176 ftnptr_eh_callback (gchandle);
12180 ftnptr_eh_callback_default (guint32 gchandle)
12182 MonoException *exc;
12183 gpointer stackdata;
12185 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12187 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12189 mono_gchandle_free (gchandle);
12191 mono_raise_exception (exc);
12195 * mono_install_ftnptr_eh_callback:
12197 * Install a callback that should be called when there is a managed exception
12198 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12199 * managed exception to a native exception, to properly unwind the native
12200 * stack; this native exception will then be converted back to a managed
12201 * exception in their managed-to-native wrapper.
12204 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12206 ftnptr_eh_callback = callback;
12209 static MonoThreadInfo*
12210 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12212 MonoThreadInfo *info = mono_thread_info_current ();
12214 mono_stack_mark_init (info, stackmark);
12215 error_init (error);
12220 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12222 mono_stack_mark_pop (info, stackmark);
12223 if (G_UNLIKELY (!is_ok (error)))
12224 mono_error_set_pending_exception (error);