2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #include "metadata/marshal.h"
23 #include "metadata/marshal-internals.h"
24 #include "metadata/method-builder.h"
25 #include "metadata/tabledefs.h"
26 #include "metadata/exception.h"
27 #include "metadata/appdomain.h"
28 #include "mono/metadata/abi-details.h"
29 #include "mono/metadata/debug-helpers.h"
30 #include "mono/metadata/threads.h"
31 #include "mono/metadata/monitor.h"
32 #include "mono/metadata/class-internals.h"
33 #include "mono/metadata/metadata-internals.h"
34 #include "mono/metadata/domain-internals.h"
35 #include "mono/metadata/gc-internals.h"
36 #include "mono/metadata/threads-types.h"
37 #include "mono/metadata/string-icalls.h"
38 #include "mono/metadata/attrdefs.h"
39 #include "mono/metadata/cominterop.h"
40 #include "mono/metadata/remoting.h"
41 #include "mono/metadata/reflection-internals.h"
42 #include "mono/metadata/threadpool.h"
43 #include "mono/metadata/handle.h"
44 #include "mono/utils/mono-counters.h"
45 #include "mono/utils/mono-tls.h"
46 #include "mono/utils/mono-memory-model.h"
47 #include "mono/utils/atomic.h"
48 #include <mono/utils/mono-threads.h>
49 #include <mono/utils/mono-threads-coop.h>
50 #include <mono/utils/mono-error-internals.h>
55 /* #define DEBUG_RUNTIME_CODE */
57 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
61 #include "mono/cil/opcode.def"
67 * This mutex protects the various marshalling related caches in MonoImage
68 * and a few other data structures static to this file.
70 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
71 * runtime locking latice. Which means it can take simple locks suck as the image lock.
73 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
74 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
75 static mono_mutex_t marshal_mutex;
76 static gboolean marshal_mutex_initialized;
78 static MonoNativeTlsKey last_error_tls_id;
80 static MonoNativeTlsKey load_type_info_tls_id;
82 static gboolean use_aot_wrappers;
84 static int class_marshal_info_count;
86 static void ftnptr_eh_callback_default (guint32 gchandle);
88 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
91 delegate_hash_table_add (MonoDelegate *d);
94 delegate_hash_table_remove (MonoDelegate *d);
97 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
100 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, int offset_of_first_child_field, MonoMarshalNative string_encoding);
103 mono_struct_delete_old (MonoClass *klass, char *ptr);
106 mono_marshal_string_to_utf16 (MonoString *s);
109 mono_marshal_string_to_utf16_copy (MonoString *s);
113 mono_string_to_utf8str (MonoString *string_obj);
116 static MonoStringBuilder *
117 mono_string_utf8_to_builder2 (char *text);
119 static MonoStringBuilder *
120 mono_string_utf16_to_builder2 (gunichar2 *text);
123 mono_string_new_len_wrapper (const char *text, guint length);
126 mono_string_from_byvalstr (const char *data, int len);
129 mono_string_from_byvalwstr (gunichar2 *data, int len);
132 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
135 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
138 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
141 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
143 static MonoAsyncResult *
144 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
147 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
150 mono_marshal_set_last_error_windows (int error);
153 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
155 static void init_safe_handle (void);
158 ves_icall_marshal_alloc (gulong size);
161 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
164 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
167 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
170 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
173 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
176 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
179 mono_delegate_to_ftnptr (MonoDelegate *delegate);
182 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
185 mono_array_to_savearray (MonoArray *array);
188 mono_array_to_lparray (MonoArray *array);
191 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
194 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
197 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
200 mono_array_to_savearray (MonoArray *array);
203 mono_array_to_lparray (MonoArray *array);
206 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
209 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
211 static MonoThreadInfo*
212 mono_icall_start (HandleStackMark *stackmark, MonoError *error);
215 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error);
217 /* Lazy class loading functions */
218 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, "System.Text", "StringBuilder");
219 static GENERATE_GET_CLASS_WITH_CACHE (date_time, "System", "DateTime");
220 static GENERATE_GET_CLASS_WITH_CACHE (fixed_buffer_attribute, "System.Runtime.CompilerServices", "FixedBufferAttribute");
221 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
222 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, "System.Runtime.InteropServices", "ICustomMarshaler");
224 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
225 static MonoMethod *sh_dangerous_add_ref;
226 static MonoMethod *sh_dangerous_release;
231 sh_dangerous_add_ref = mono_class_get_method_from_name (
232 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
233 sh_dangerous_release = mono_class_get_method_from_name (
234 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
238 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
240 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
242 mono_register_jit_icall (func, name, sig, no_wrapper);
246 mono_signature_no_pinvoke (MonoMethod *method)
248 MonoMethodSignature *sig = mono_method_signature (method);
250 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
251 sig->pinvoke = FALSE;
258 mono_marshal_init_tls (void)
260 mono_native_tls_alloc (&last_error_tls_id, NULL);
261 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
265 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
268 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
269 mono_error_set_pending_exception (&error);
274 ves_icall_mono_string_from_utf16 (gunichar2 *data)
277 MonoString *result = mono_string_from_utf16_checked (data, &error);
278 mono_error_set_pending_exception (&error);
283 ves_icall_mono_string_to_utf8 (MonoString *str)
286 char *result = mono_string_to_utf8_checked (str, &error);
287 mono_error_set_pending_exception (&error);
292 mono_marshal_init (void)
294 static gboolean module_initialized = FALSE;
296 if (!module_initialized) {
297 module_initialized = TRUE;
298 mono_os_mutex_init_recursive (&marshal_mutex);
299 marshal_mutex_initialized = TRUE;
301 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
302 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
303 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
304 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
305 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
306 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
307 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
308 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
309 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
310 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
311 register_icall (mono_string_to_utf8str, "mono_string_to_utf8str", "ptr obj", FALSE);
312 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
313 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
314 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
315 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
316 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
317 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
318 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
319 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
320 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
321 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
322 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
323 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
324 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
325 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
326 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
327 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
328 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
329 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
330 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
331 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
332 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
333 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
334 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
335 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
336 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
337 register_icall (g_free, "g_free", "void ptr", FALSE);
338 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
339 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
340 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
341 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
342 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
343 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
344 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
345 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
346 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
347 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
348 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
349 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
350 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
351 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
352 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
353 register_icall (mono_icall_start, "mono_icall_start", "ptr ptr ptr", TRUE);
354 register_icall (mono_icall_end, "mono_icall_end", "void ptr ptr ptr", TRUE);
355 register_icall (mono_handle_new, "mono_handle_new", "ptr ptr", TRUE);
357 mono_cominterop_init ();
358 mono_remoting_init ();
360 mono_counters_register ("MonoClass::class_marshal_info_count count",
361 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_marshal_info_count);
367 mono_marshal_cleanup (void)
369 mono_cominterop_cleanup ();
371 mono_native_tls_free (load_type_info_tls_id);
372 mono_native_tls_free (last_error_tls_id);
373 mono_os_mutex_destroy (&marshal_mutex);
374 marshal_mutex_initialized = FALSE;
378 mono_marshal_lock_internal (void)
380 mono_marshal_lock ();
384 mono_marshal_unlock_internal (void)
386 mono_marshal_unlock ();
389 /* This is a JIT icall, it sets the pending exception and return NULL on error */
391 mono_delegate_to_ftnptr (MonoDelegate *delegate)
394 MonoMethod *method, *wrapper;
396 uint32_t target_handle = 0;
401 if (delegate->delegate_trampoline)
402 return delegate->delegate_trampoline;
404 klass = ((MonoObject *)delegate)->vtable->klass;
405 g_assert (klass->delegate);
407 method = delegate->method;
408 if (delegate->method_is_virtual)
409 method = mono_object_get_virtual_method (delegate->target, method);
411 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
412 const char *exc_class, *exc_arg;
415 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
417 g_assert (exc_class);
418 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
424 if (delegate->target) {
425 /* Produce a location which can be embedded in JITted code */
426 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
429 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
431 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
435 // Add the delegate to the delegate hash table
436 delegate_hash_table_add (delegate);
438 /* when the object is collected, collect the dynamic method, too */
439 mono_object_register_finalizer ((MonoObject*)delegate);
441 return delegate->delegate_trampoline;
444 if (target_handle != 0)
445 mono_gchandle_free (target_handle);
446 mono_error_set_pending_exception (&error);
451 * this hash table maps from a delegate trampoline object to a weak reference
452 * of the delegate. As an optimizations with a non-moving GC we store the
453 * object pointer itself, otherwise we use a GC handle.
455 static GHashTable *delegate_hash_table;
458 delegate_hash_table_new (void) {
459 return g_hash_table_new (NULL, NULL);
463 delegate_hash_table_remove (MonoDelegate *d)
465 guint32 gchandle = 0;
467 mono_marshal_lock ();
468 if (delegate_hash_table == NULL)
469 delegate_hash_table = delegate_hash_table_new ();
470 if (mono_gc_is_moving ())
471 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
472 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
473 mono_marshal_unlock ();
474 if (gchandle && mono_gc_is_moving ())
475 mono_gchandle_free (gchandle);
479 delegate_hash_table_add (MonoDelegate *d)
482 guint32 old_gchandle;
484 mono_marshal_lock ();
485 if (delegate_hash_table == NULL)
486 delegate_hash_table = delegate_hash_table_new ();
487 if (mono_gc_is_moving ()) {
488 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
489 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
490 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
492 mono_gchandle_free (old_gchandle);
494 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
496 mono_marshal_unlock ();
500 * mono_marshal_use_aot_wrappers:
502 * Instructs this module to use AOT compatible wrappers.
505 mono_marshal_use_aot_wrappers (gboolean use)
507 use_aot_wrappers = use;
511 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
514 MonoCustomAttrInfo *cinfo;
515 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
517 /* The attribute is only available in Net 2.0 */
518 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
520 * The pinvoke attributes are stored in a real custom attribute so we have to
523 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
524 if (!mono_error_ok (&error)) {
525 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
526 mono_error_cleanup (&error);
528 if (cinfo && !mono_runtime_get_no_exec ()) {
529 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
531 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
533 if (!mono_error_ok (&error)) {
534 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
535 mono_error_cleanup (&error);
539 mono_custom_attrs_free (cinfo);
544 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
546 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
555 mono_marshal_lock ();
556 if (delegate_hash_table == NULL)
557 delegate_hash_table = delegate_hash_table_new ();
559 if (mono_gc_is_moving ()) {
560 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
561 mono_marshal_unlock ();
563 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
567 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
568 mono_marshal_unlock ();
571 /* This is a native function, so construct a delegate for it */
572 MonoMethodSignature *sig;
574 MonoMarshalSpec **mspecs;
575 MonoMethod *invoke = mono_get_delegate_invoke (klass);
576 MonoMethodPInvoke piinfo;
577 MonoObject *this_obj;
580 if (use_aot_wrappers) {
581 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
582 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
583 if (!is_ok (&error)) {
584 mono_error_set_pending_exception (&error);
588 memset (&piinfo, 0, sizeof (piinfo));
589 parse_unmanaged_function_pointer_attr (klass, &piinfo);
591 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
592 mono_method_get_marshal_info (invoke, mspecs);
593 /* Freed below so don't alloc from mempool */
594 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
597 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
600 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
602 mono_metadata_free_marshal_spec (mspecs [i]);
607 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
608 if (!mono_error_ok (&error)) {
609 mono_error_set_pending_exception (&error);
612 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
613 if (mono_error_set_pending_exception (&error))
615 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
616 if (mono_error_set_pending_exception (&error))
620 if (d->object.vtable->domain != mono_domain_get ()) {
621 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
629 mono_delegate_free_ftnptr (MonoDelegate *delegate)
634 delegate_hash_table_remove (delegate);
636 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
638 if (!delegate->target) {
639 /* The wrapper method is shared between delegates -> no need to free it */
648 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
651 method = mono_jit_info_get_method (ji);
652 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
654 /*the target gchandle is the first entry after size and the wrapper itself.*/
655 gchandle = GPOINTER_TO_UINT (method_data [2]);
658 mono_gchandle_free (gchandle);
660 mono_runtime_free_method (mono_object_domain (delegate), method);
664 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
666 mono_string_from_byvalstr (const char *data, int max_len)
669 MonoDomain *domain = mono_domain_get ();
675 while (len < max_len - 1 && data [len])
678 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
679 mono_error_set_pending_exception (&error);
683 /* This is a JIT icall, it sets the pending exception and return NULL on error */
685 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
688 MonoString *res = NULL;
689 MonoDomain *domain = mono_domain_get ();
695 while (data [len]) len++;
697 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
698 if (!mono_error_ok (&error)) {
699 mono_error_set_pending_exception (&error);
706 mono_array_to_savearray (MonoArray *array)
711 g_assert_not_reached ();
716 mono_array_to_lparray (MonoArray *array)
719 gpointer *nativeArray = NULL;
720 int nativeArraySize = 0;
730 klass = array->obj.vtable->klass;
732 switch (klass->element_class->byval_arg.type) {
734 g_assert_not_reached ();
736 case MONO_TYPE_CLASS:
737 nativeArraySize = array->max_length;
738 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
739 for(i = 0; i < nativeArraySize; ++i)
740 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
743 case MONO_TYPE_BOOLEAN:
756 case MONO_TYPE_VALUETYPE:
760 case MONO_TYPE_GENERICINST:
761 case MONO_TYPE_OBJECT:
762 case MONO_TYPE_ARRAY:
763 case MONO_TYPE_SZARRAY:
764 case MONO_TYPE_STRING:
766 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
767 g_assert_not_reached ();
770 return array->vector;
774 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
785 klass = array->obj.vtable->klass;
787 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
788 for(i = 0; i < array->max_length; ++i)
789 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
790 g_free (nativeArray);
796 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
798 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
800 if (elclass == mono_defaults.byte_class) {
801 GError *error = NULL;
805 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
808 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
812 g_error_free (error);
815 g_assert_not_reached ();
819 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
821 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
824 /* This is a JIT icall, it sets the pending exception and returns on error */
826 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
828 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
830 if (elclass == mono_defaults.byte_class) {
832 GError *error = NULL;
834 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
836 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
837 g_error_free (error);
841 memcpy (native_arr, as, MIN (strlen (as), elnum));
844 g_assert_not_reached ();
849 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
851 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
854 static MonoStringBuilder *
855 mono_string_builder_new (int starting_string_length)
857 static MonoClass *string_builder_class;
858 static MonoMethod *sb_ctor;
859 static void *args [1];
862 int initial_len = starting_string_length;
868 MonoMethodDesc *desc;
871 string_builder_class = mono_class_get_string_builder_class ();
872 g_assert (string_builder_class);
873 desc = mono_method_desc_new (":.ctor(int)", FALSE);
874 m = mono_method_desc_search_in_class (desc, string_builder_class);
876 mono_method_desc_free (desc);
877 mono_memory_barrier ();
881 // We make a new array in the _to_builder function, so this
882 // array will always be garbage collected.
883 args [0] = &initial_len;
885 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
886 mono_error_assert_ok (&error);
889 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
890 g_assert (exc == NULL);
891 mono_error_assert_ok (&error);
893 g_assert (sb->chunkChars->max_length >= initial_len);
899 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
901 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
902 gunichar2 *charSrc = (gunichar2 *)text;
903 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
905 sb->chunkLength = string_len;
911 mono_string_utf16_to_builder2 (gunichar2 *text)
917 for (len = 0; text [len] != 0; ++len);
919 MonoStringBuilder *sb = mono_string_builder_new (len);
920 mono_string_utf16_to_builder (sb, text);
926 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
931 GError *error = NULL;
933 gunichar2* ut = g_utf8_to_utf16 (text, strlen (text), NULL, &copied, &error);
934 int capacity = mono_string_builder_capacity (sb);
936 if (copied > capacity)
940 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
941 mono_string_utf16_to_builder_copy (sb, ut, copied);
943 g_error_free (error);
949 mono_string_utf8_to_builder2 (char *text)
954 int len = strlen (text);
955 MonoStringBuilder *sb = mono_string_builder_new (len);
956 mono_string_utf8_to_builder (sb, text);
962 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
968 for (len = 0; text [len] != 0; ++len);
970 if (len > mono_string_builder_capacity (sb))
971 len = mono_string_builder_capacity (sb);
973 mono_string_utf16_to_builder_copy (sb, text, len);
977 * mono_string_builder_to_utf8:
978 * @sb: the string builder
980 * Converts to utf8 the contents of the MonoStringBuilder.
982 * Returns: a utf8 string with the contents of the StringBuilder.
984 * The return value must be released with mono_marshal_free.
986 * This is a JIT icall, it sets the pending exception and returns NULL on error.
989 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
992 GError *gerror = NULL;
997 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
999 guint str_len = mono_string_builder_string_length (sb);
1001 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
1004 g_error_free (gerror);
1005 mono_marshal_free (str_utf16);
1006 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1009 guint len = mono_string_builder_capacity (sb) + 1;
1010 gchar *res = (gchar *)mono_marshal_alloc (MAX (byte_count+1, len * sizeof (gchar)), &error);
1011 if (!mono_error_ok (&error)) {
1012 mono_marshal_free (str_utf16);
1014 mono_error_set_pending_exception (&error);
1018 memcpy (res, tmp, byte_count);
1019 res[byte_count] = '\0';
1021 mono_marshal_free (str_utf16);
1028 * mono_string_builder_to_utf16:
1029 * @sb: the string builder
1031 * Converts to utf16 the contents of the MonoStringBuilder.
1033 * Returns: a utf16 string with the contents of the StringBuilder.
1035 * The return value must be released with mono_marshal_free.
1037 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1040 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1047 g_assert (sb->chunkChars);
1049 guint len = mono_string_builder_capacity (sb);
1054 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1055 if (!mono_error_ok (&error)) {
1056 mono_error_set_pending_exception (&error);
1065 MonoStringBuilder* chunk = sb;
1067 if (chunk->chunkLength > 0) {
1068 // Check that we will not overrun our boundaries.
1069 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1071 if (chunk->chunkLength <= len) {
1072 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1074 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1077 len -= chunk->chunkLength;
1079 chunk = chunk->chunkPrevious;
1080 } while (chunk != NULL);
1086 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1088 mono_string_to_utf8str (MonoString *s)
1091 char *result = mono_string_to_utf8_checked (s, &error);
1092 mono_error_set_pending_exception (&error);
1098 mono_string_to_ansibstr (MonoString *string_obj)
1100 g_error ("UnmanagedMarshal.BStr is not implemented.");
1105 * mono_string_to_byvalstr:
1106 * @dst: Where to store the null-terminated utf8 decoded string.
1107 * @src: the MonoString to copy.
1108 * @size: the maximum number of bytes to copy.
1110 * Copies the MonoString pointed to by @src as a utf8 string
1111 * into @dst, it copies at most @size bytes into the destination.
1114 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1120 g_assert (dst != NULL);
1121 g_assert (size > 0);
1123 memset (dst, 0, size);
1127 s = mono_string_to_utf8_checked (src, &error);
1128 if (mono_error_set_pending_exception (&error))
1130 len = MIN (size, strlen (s));
1133 memcpy (dst, s, len);
1138 * mono_string_to_byvalwstr:
1139 * @dst: Where to store the null-terminated utf16 decoded string.
1140 * @src: the MonoString to copy.
1141 * @size: the maximum number of wide characters to copy (each consumes 2 bytes)
1143 * Copies the MonoString pointed to by @src as a utf16 string into
1144 * @dst, it copies at most @size bytes into the destination (including
1145 * a terminating 16-bit zero terminator).
1148 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1152 g_assert (dst != NULL);
1153 g_assert (size > 1);
1156 memset (dst, 0, size * 2);
1160 len = MIN (size, (mono_string_length (src)));
1161 memcpy (dst, mono_string_chars (src), len * 2);
1162 if (size <= mono_string_length (src))
1164 *((gunichar2 *) dst + len) = 0;
1167 /* this is an icall, it sets the pending exception and returns NULL on error */
1169 mono_string_new_len_wrapper (const char *text, guint length)
1172 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1173 mono_error_set_pending_exception (&error);
1180 * mono_mb_emit_exception_marshal_directive:
1182 * This function assumes ownership of MSG, which should be malloc-ed.
1185 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1190 s = mono_image_strdup (mb->method->klass->image, msg);
1195 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1198 #endif /* !DISABLE_JIT */
1201 mono_type_to_ldind (MonoType *type)
1207 switch (type->type) {
1209 return CEE_LDIND_I1;
1211 case MONO_TYPE_BOOLEAN:
1212 return CEE_LDIND_U1;
1214 return CEE_LDIND_I2;
1216 case MONO_TYPE_CHAR:
1217 return CEE_LDIND_U2;
1219 return CEE_LDIND_I4;
1221 return CEE_LDIND_U4;
1225 case MONO_TYPE_FNPTR:
1227 case MONO_TYPE_CLASS:
1228 case MONO_TYPE_STRING:
1229 case MONO_TYPE_OBJECT:
1230 case MONO_TYPE_SZARRAY:
1231 case MONO_TYPE_ARRAY:
1232 return CEE_LDIND_REF;
1235 return CEE_LDIND_I8;
1237 return CEE_LDIND_R4;
1239 return CEE_LDIND_R8;
1240 case MONO_TYPE_VALUETYPE:
1241 if (type->data.klass->enumtype) {
1242 type = mono_class_enum_basetype (type->data.klass);
1246 case MONO_TYPE_TYPEDBYREF:
1248 case MONO_TYPE_GENERICINST:
1249 type = &type->data.generic_class->container_class->byval_arg;
1252 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1258 mono_type_to_stind (MonoType *type)
1261 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1265 switch (type->type) {
1268 case MONO_TYPE_BOOLEAN:
1269 return CEE_STIND_I1;
1272 case MONO_TYPE_CHAR:
1273 return CEE_STIND_I2;
1276 return CEE_STIND_I4;
1280 case MONO_TYPE_FNPTR:
1282 case MONO_TYPE_CLASS:
1283 case MONO_TYPE_STRING:
1284 case MONO_TYPE_OBJECT:
1285 case MONO_TYPE_SZARRAY:
1286 case MONO_TYPE_ARRAY:
1287 return CEE_STIND_REF;
1290 return CEE_STIND_I8;
1292 return CEE_STIND_R4;
1294 return CEE_STIND_R8;
1295 case MONO_TYPE_VALUETYPE:
1296 if (type->data.klass->enumtype) {
1297 type = mono_class_enum_basetype (type->data.klass);
1301 case MONO_TYPE_TYPEDBYREF:
1303 case MONO_TYPE_GENERICINST:
1304 type = &type->data.generic_class->container_class->byval_arg;
1307 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1315 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1318 case MONO_MARSHAL_CONV_BOOL_I4:
1319 mono_mb_emit_ldloc (mb, 1);
1320 mono_mb_emit_ldloc (mb, 0);
1321 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1322 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1323 mono_mb_emit_byte (mb, 3);
1324 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1325 mono_mb_emit_byte (mb, CEE_BR_S);
1326 mono_mb_emit_byte (mb, 1);
1327 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1328 mono_mb_emit_byte (mb, CEE_STIND_I1);
1330 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1331 mono_mb_emit_ldloc (mb, 1);
1332 mono_mb_emit_ldloc (mb, 0);
1333 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1334 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1335 mono_mb_emit_byte (mb, 3);
1336 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1337 mono_mb_emit_byte (mb, CEE_BR_S);
1338 mono_mb_emit_byte (mb, 1);
1339 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1340 mono_mb_emit_byte (mb, CEE_STIND_I1);
1342 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1343 MonoClass *eklass = NULL;
1346 if (type->type == MONO_TYPE_SZARRAY) {
1347 eklass = type->data.klass;
1349 g_assert_not_reached ();
1352 esize = mono_class_native_size (eklass, NULL);
1354 /* create a new array */
1355 mono_mb_emit_ldloc (mb, 1);
1356 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1357 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1358 mono_mb_emit_byte (mb, CEE_STIND_REF);
1360 if (eklass->blittable) {
1361 /* copy the elements */
1362 mono_mb_emit_ldloc (mb, 1);
1363 mono_mb_emit_byte (mb, CEE_LDIND_I);
1364 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1365 mono_mb_emit_byte (mb, CEE_ADD);
1366 mono_mb_emit_ldloc (mb, 0);
1367 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1368 mono_mb_emit_byte (mb, CEE_PREFIX1);
1369 mono_mb_emit_byte (mb, CEE_CPBLK);
1372 int array_var, src_var, dst_var, index_var;
1373 guint32 label2, label3;
1375 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1376 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1377 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1380 mono_mb_emit_ldloc (mb, 1);
1381 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1382 mono_mb_emit_stloc (mb, array_var);
1384 /* save the old src pointer */
1385 mono_mb_emit_ldloc (mb, 0);
1386 mono_mb_emit_stloc (mb, src_var);
1387 /* save the old dst pointer */
1388 mono_mb_emit_ldloc (mb, 1);
1389 mono_mb_emit_stloc (mb, dst_var);
1391 /* Emit marshalling loop */
1392 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1393 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1394 mono_mb_emit_stloc (mb, index_var);
1397 label2 = mono_mb_get_label (mb);
1398 mono_mb_emit_ldloc (mb, index_var);
1399 mono_mb_emit_ldloc (mb, array_var);
1400 mono_mb_emit_byte (mb, CEE_LDLEN);
1401 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1403 /* src is already set */
1406 mono_mb_emit_ldloc (mb, array_var);
1407 mono_mb_emit_ldloc (mb, index_var);
1408 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1409 mono_mb_emit_stloc (mb, 1);
1411 /* Do the conversion */
1412 emit_struct_conv (mb, eklass, TRUE);
1415 mono_mb_emit_add_to_local (mb, index_var, 1);
1417 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1419 mono_mb_patch_branch (mb, label3);
1421 /* restore the old src pointer */
1422 mono_mb_emit_ldloc (mb, src_var);
1423 mono_mb_emit_stloc (mb, 0);
1424 /* restore the old dst pointer */
1425 mono_mb_emit_ldloc (mb, dst_var);
1426 mono_mb_emit_stloc (mb, 1);
1430 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1431 MonoClass *eclass = mono_defaults.char_class;
1433 /* create a new array */
1434 mono_mb_emit_ldloc (mb, 1);
1435 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1436 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1437 mono_mb_emit_byte (mb, CEE_STIND_REF);
1439 mono_mb_emit_ldloc (mb, 1);
1440 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1441 mono_mb_emit_ldloc (mb, 0);
1442 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1443 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1446 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1447 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1448 mono_mb_emit_ldloc (mb, 1);
1449 mono_mb_emit_ldloc (mb, 0);
1450 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1451 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1453 mono_mb_emit_ldloc (mb, 1);
1454 mono_mb_emit_ldloc (mb, 0);
1455 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1457 mono_mb_emit_byte (mb, CEE_STIND_REF);
1459 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1460 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1461 mono_mb_emit_ldloc (mb, 1);
1462 mono_mb_emit_ldloc (mb, 0);
1463 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1464 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1466 mono_mb_emit_ldloc (mb, 1);
1467 mono_mb_emit_ldloc (mb, 0);
1468 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1470 mono_mb_emit_byte (mb, CEE_STIND_REF);
1472 case MONO_MARSHAL_CONV_STR_LPTSTR:
1473 mono_mb_emit_ldloc (mb, 1);
1474 mono_mb_emit_ldloc (mb, 0);
1475 mono_mb_emit_byte (mb, CEE_LDIND_I);
1477 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1479 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1481 mono_mb_emit_byte (mb, CEE_STIND_REF);
1484 // In Mono historically LPSTR was treated as a UTF8STR
1485 case MONO_MARSHAL_CONV_STR_LPSTR:
1486 case MONO_MARSHAL_CONV_STR_UTF8STR:
1487 mono_mb_emit_ldloc (mb, 1);
1488 mono_mb_emit_ldloc (mb, 0);
1489 mono_mb_emit_byte (mb, CEE_LDIND_I);
1490 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1491 mono_mb_emit_byte (mb, CEE_STIND_REF);
1493 case MONO_MARSHAL_CONV_STR_LPWSTR:
1494 mono_mb_emit_ldloc (mb, 1);
1495 mono_mb_emit_ldloc (mb, 0);
1496 mono_mb_emit_byte (mb, CEE_LDIND_I);
1497 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1498 mono_mb_emit_byte (mb, CEE_STIND_REF);
1500 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1501 MonoClass *klass = mono_class_from_mono_type (type);
1502 int src_var, dst_var;
1504 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1505 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1507 /* *dst = new object */
1508 mono_mb_emit_ldloc (mb, 1);
1509 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1510 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1511 mono_mb_emit_byte (mb, CEE_STIND_REF);
1513 /* save the old src pointer */
1514 mono_mb_emit_ldloc (mb, 0);
1515 mono_mb_emit_stloc (mb, src_var);
1516 /* save the old dst pointer */
1517 mono_mb_emit_ldloc (mb, 1);
1518 mono_mb_emit_stloc (mb, dst_var);
1520 /* dst = pointer to newly created object data */
1521 mono_mb_emit_ldloc (mb, 1);
1522 mono_mb_emit_byte (mb, CEE_LDIND_I);
1523 mono_mb_emit_icon (mb, sizeof (MonoObject));
1524 mono_mb_emit_byte (mb, CEE_ADD);
1525 mono_mb_emit_stloc (mb, 1);
1527 emit_struct_conv (mb, klass, TRUE);
1529 /* restore the old src pointer */
1530 mono_mb_emit_ldloc (mb, src_var);
1531 mono_mb_emit_stloc (mb, 0);
1532 /* restore the old dst pointer */
1533 mono_mb_emit_ldloc (mb, dst_var);
1534 mono_mb_emit_stloc (mb, 1);
1537 case MONO_MARSHAL_CONV_DEL_FTN: {
1538 MonoClass *klass = mono_class_from_mono_type (type);
1540 mono_mb_emit_ldloc (mb, 1);
1541 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1542 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1543 mono_mb_emit_ldloc (mb, 0);
1544 mono_mb_emit_byte (mb, CEE_LDIND_I);
1545 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1546 mono_mb_emit_byte (mb, CEE_STIND_REF);
1549 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1550 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1554 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1555 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1556 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1557 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1559 #endif /* DISABLE_COM */
1561 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1563 * Passing SafeHandles as ref does not allow the unmanaged code
1564 * to change the SafeHandle value. If the value is changed,
1565 * we should issue a diagnostic exception (NotSupportedException)
1566 * that informs the user that changes to handles in unmanaged code
1569 * Since we currently have no access to the original
1570 * SafeHandle that was used during the marshalling,
1571 * for now we just ignore this, and ignore/discard any
1572 * changes that might have happened to the handle.
1577 case MONO_MARSHAL_CONV_HANDLEREF: {
1579 * Passing HandleRefs in a struct that is ref()ed does not
1580 * copy the values back to the HandleRef
1585 case MONO_MARSHAL_CONV_STR_BSTR:
1586 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1587 case MONO_MARSHAL_CONV_STR_TBSTR:
1588 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1590 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1592 mono_mb_emit_exception_marshal_directive (mb, msg);
1599 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1602 if (!ind_store_type)
1603 ind_store_type = &dummy;
1604 *ind_store_type = CEE_STIND_I;
1606 case MONO_MARSHAL_CONV_STR_LPWSTR:
1607 return mono_marshal_string_to_utf16;
1608 case MONO_MARSHAL_CONV_LPWSTR_STR:
1609 *ind_store_type = CEE_STIND_REF;
1610 return ves_icall_mono_string_from_utf16;
1611 case MONO_MARSHAL_CONV_LPTSTR_STR:
1612 *ind_store_type = CEE_STIND_REF;
1613 return mono_string_new_wrapper;
1614 case MONO_MARSHAL_CONV_UTF8STR_STR:
1615 case MONO_MARSHAL_CONV_LPSTR_STR:
1616 *ind_store_type = CEE_STIND_REF;
1617 return mono_string_new_wrapper;
1618 case MONO_MARSHAL_CONV_STR_LPTSTR:
1620 return mono_marshal_string_to_utf16;
1622 return mono_string_to_utf8str;
1624 // In Mono historically LPSTR was treated as a UTF8STR
1625 case MONO_MARSHAL_CONV_STR_UTF8STR:
1626 case MONO_MARSHAL_CONV_STR_LPSTR:
1627 return mono_string_to_utf8str;
1628 case MONO_MARSHAL_CONV_STR_BSTR:
1629 return mono_string_to_bstr;
1630 case MONO_MARSHAL_CONV_BSTR_STR:
1631 *ind_store_type = CEE_STIND_REF;
1632 return mono_string_from_bstr_icall;
1633 case MONO_MARSHAL_CONV_STR_TBSTR:
1634 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1635 return mono_string_to_ansibstr;
1636 case MONO_MARSHAL_CONV_SB_UTF8STR:
1637 case MONO_MARSHAL_CONV_SB_LPSTR:
1638 return mono_string_builder_to_utf8;
1639 case MONO_MARSHAL_CONV_SB_LPTSTR:
1641 return mono_string_builder_to_utf16;
1643 return mono_string_builder_to_utf8;
1645 case MONO_MARSHAL_CONV_SB_LPWSTR:
1646 return mono_string_builder_to_utf16;
1647 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1648 return mono_array_to_savearray;
1649 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1650 return mono_array_to_lparray;
1651 case MONO_MARSHAL_FREE_LPARRAY:
1652 return mono_free_lparray;
1653 case MONO_MARSHAL_CONV_DEL_FTN:
1654 return mono_delegate_to_ftnptr;
1655 case MONO_MARSHAL_CONV_FTN_DEL:
1656 *ind_store_type = CEE_STIND_REF;
1657 return mono_ftnptr_to_delegate;
1658 case MONO_MARSHAL_CONV_UTF8STR_SB:
1659 case MONO_MARSHAL_CONV_LPSTR_SB:
1660 *ind_store_type = CEE_STIND_REF;
1661 return mono_string_utf8_to_builder;
1662 case MONO_MARSHAL_CONV_LPTSTR_SB:
1663 *ind_store_type = CEE_STIND_REF;
1665 return mono_string_utf16_to_builder;
1667 return mono_string_utf8_to_builder;
1669 case MONO_MARSHAL_CONV_LPWSTR_SB:
1670 *ind_store_type = CEE_STIND_REF;
1671 return mono_string_utf16_to_builder;
1672 case MONO_MARSHAL_FREE_ARRAY:
1673 return mono_marshal_free_array;
1674 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1675 return mono_string_to_byvalstr;
1676 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1677 return mono_string_to_byvalwstr;
1679 g_assert_not_reached ();
1686 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1692 case MONO_MARSHAL_CONV_BOOL_I4:
1693 mono_mb_emit_ldloc (mb, 1);
1694 mono_mb_emit_ldloc (mb, 0);
1695 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1696 mono_mb_emit_byte (mb, CEE_STIND_I4);
1698 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1699 mono_mb_emit_ldloc (mb, 1);
1700 mono_mb_emit_ldloc (mb, 0);
1701 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1702 mono_mb_emit_byte (mb, CEE_NEG);
1703 mono_mb_emit_byte (mb, CEE_STIND_I2);
1705 // In Mono historically LPSTR was treated as a UTF8STR
1706 case MONO_MARSHAL_CONV_STR_UTF8STR:
1707 case MONO_MARSHAL_CONV_STR_LPWSTR:
1708 case MONO_MARSHAL_CONV_STR_LPSTR:
1709 case MONO_MARSHAL_CONV_STR_LPTSTR:
1710 case MONO_MARSHAL_CONV_STR_BSTR:
1711 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1712 case MONO_MARSHAL_CONV_STR_TBSTR: {
1715 /* free space if free == true */
1716 mono_mb_emit_ldloc (mb, 2);
1717 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1718 mono_mb_emit_ldloc (mb, 1);
1719 mono_mb_emit_byte (mb, CEE_LDIND_I);
1720 mono_mb_emit_icall (mb, g_free);
1721 mono_mb_patch_short_branch (mb, pos);
1723 mono_mb_emit_ldloc (mb, 1);
1724 mono_mb_emit_ldloc (mb, 0);
1725 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1726 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1727 mono_mb_emit_byte (mb, stind_op);
1730 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1731 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1732 case MONO_MARSHAL_CONV_DEL_FTN:
1733 mono_mb_emit_ldloc (mb, 1);
1734 mono_mb_emit_ldloc (mb, 0);
1735 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1736 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1737 mono_mb_emit_byte (mb, stind_op);
1739 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1740 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1743 mono_mb_emit_ldloc (mb, 1); /* dst */
1744 mono_mb_emit_ldloc (mb, 0);
1745 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1746 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1747 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1750 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1751 MonoClass *eklass = NULL;
1754 if (type->type == MONO_TYPE_SZARRAY) {
1755 eklass = type->data.klass;
1757 g_assert_not_reached ();
1760 if (eklass->valuetype)
1761 esize = mono_class_native_size (eklass, NULL);
1763 esize = sizeof (gpointer);
1765 mono_mb_emit_ldloc (mb, 0);
1766 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1767 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1769 if (eklass->blittable) {
1770 mono_mb_emit_ldloc (mb, 1);
1771 mono_mb_emit_ldloc (mb, 0);
1772 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1773 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1774 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1775 mono_mb_emit_byte (mb, CEE_PREFIX1);
1776 mono_mb_emit_byte (mb, CEE_CPBLK);
1778 int array_var, src_var, dst_var, index_var;
1779 guint32 label2, label3;
1781 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1782 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1783 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1786 mono_mb_emit_ldloc (mb, 0);
1787 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1788 mono_mb_emit_stloc (mb, array_var);
1790 /* save the old src pointer */
1791 mono_mb_emit_ldloc (mb, 0);
1792 mono_mb_emit_stloc (mb, src_var);
1793 /* save the old dst pointer */
1794 mono_mb_emit_ldloc (mb, 1);
1795 mono_mb_emit_stloc (mb, dst_var);
1797 /* Emit marshalling loop */
1798 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1799 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1800 mono_mb_emit_stloc (mb, index_var);
1803 label2 = mono_mb_get_label (mb);
1804 mono_mb_emit_ldloc (mb, index_var);
1805 mono_mb_emit_ldloc (mb, array_var);
1806 mono_mb_emit_byte (mb, CEE_LDLEN);
1807 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1810 mono_mb_emit_ldloc (mb, array_var);
1811 mono_mb_emit_ldloc (mb, index_var);
1812 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1813 mono_mb_emit_stloc (mb, 0);
1815 /* dst is already set */
1817 /* Do the conversion */
1818 emit_struct_conv (mb, eklass, FALSE);
1821 mono_mb_emit_add_to_local (mb, index_var, 1);
1823 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1825 mono_mb_patch_branch (mb, label3);
1827 /* restore the old src pointer */
1828 mono_mb_emit_ldloc (mb, src_var);
1829 mono_mb_emit_stloc (mb, 0);
1830 /* restore the old dst pointer */
1831 mono_mb_emit_ldloc (mb, dst_var);
1832 mono_mb_emit_stloc (mb, 1);
1835 mono_mb_patch_branch (mb, pos);
1838 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1839 mono_mb_emit_ldloc (mb, 0);
1840 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1841 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1843 mono_mb_emit_ldloc (mb, 1);
1844 mono_mb_emit_ldloc (mb, 0);
1845 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1846 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1847 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1848 mono_mb_patch_short_branch (mb, pos);
1851 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1852 int src_var, dst_var;
1854 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1855 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1857 mono_mb_emit_ldloc (mb, 0);
1858 mono_mb_emit_byte (mb, CEE_LDIND_I);
1859 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1861 /* save the old src pointer */
1862 mono_mb_emit_ldloc (mb, 0);
1863 mono_mb_emit_stloc (mb, src_var);
1864 /* save the old dst pointer */
1865 mono_mb_emit_ldloc (mb, 1);
1866 mono_mb_emit_stloc (mb, dst_var);
1868 /* src = pointer to object data */
1869 mono_mb_emit_ldloc (mb, 0);
1870 mono_mb_emit_byte (mb, CEE_LDIND_I);
1871 mono_mb_emit_icon (mb, sizeof (MonoObject));
1872 mono_mb_emit_byte (mb, CEE_ADD);
1873 mono_mb_emit_stloc (mb, 0);
1875 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1877 /* restore the old src pointer */
1878 mono_mb_emit_ldloc (mb, src_var);
1879 mono_mb_emit_stloc (mb, 0);
1880 /* restore the old dst pointer */
1881 mono_mb_emit_ldloc (mb, dst_var);
1882 mono_mb_emit_stloc (mb, 1);
1884 mono_mb_patch_branch (mb, pos);
1889 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1890 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1891 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1892 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1894 #endif /* DISABLE_COM */
1896 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1899 mono_mb_emit_ldloc (mb, 0);
1900 mono_mb_emit_byte (mb, CEE_LDIND_I);
1901 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1902 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1903 mono_mb_patch_branch (mb, pos);
1905 /* Pull the handle field from SafeHandle */
1906 mono_mb_emit_ldloc (mb, 1);
1907 mono_mb_emit_ldloc (mb, 0);
1908 mono_mb_emit_byte (mb, CEE_LDIND_I);
1909 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1910 mono_mb_emit_byte (mb, CEE_LDIND_I);
1911 mono_mb_emit_byte (mb, CEE_STIND_I);
1915 case MONO_MARSHAL_CONV_HANDLEREF: {
1916 mono_mb_emit_ldloc (mb, 1);
1917 mono_mb_emit_ldloc (mb, 0);
1918 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1919 mono_mb_emit_byte (mb, CEE_ADD);
1920 mono_mb_emit_byte (mb, CEE_LDIND_I);
1921 mono_mb_emit_byte (mb, CEE_STIND_I);
1926 g_error ("marshalling conversion %d not implemented", conv);
1932 offset_of_first_nonstatic_field (MonoClass *klass)
1935 int fcount = mono_class_get_field_count (klass);
1936 mono_class_setup_fields (klass);
1937 for (i = 0; i < fcount; i++) {
1938 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
1939 return klass->fields[i].offset - sizeof (MonoObject);
1946 get_fixed_buffer_attr (MonoClassField *field, MonoType **out_etype, int *out_len)
1949 MonoCustomAttrInfo *cinfo;
1950 MonoCustomAttrEntry *attr;
1953 cinfo = mono_custom_attrs_from_field_checked (field->parent, field, &error);
1954 if (!is_ok (&error))
1958 for (aindex = 0; aindex < cinfo->num_attrs; ++aindex) {
1959 MonoClass *ctor_class = cinfo->attrs [aindex].ctor->klass;
1960 if (mono_class_has_parent (ctor_class, mono_class_get_fixed_buffer_attribute_class ())) {
1961 attr = &cinfo->attrs [aindex];
1967 MonoArray *typed_args, *named_args;
1968 CattrNamedArg *arginfo;
1971 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
1972 if (!is_ok (&error))
1974 g_assert (mono_array_length (typed_args) == 2);
1977 o = mono_array_get (typed_args, MonoObject*, 0);
1978 *out_etype = monotype_cast (o)->type;
1979 o = mono_array_get (typed_args, MonoObject*, 1);
1980 g_assert (o->vtable->klass == mono_defaults.int32_class);
1981 *out_len = *(gint32*)mono_object_unbox (o);
1984 if (cinfo && !cinfo->cached)
1985 mono_custom_attrs_free (cinfo);
1986 return attr != NULL;
1990 emit_fixed_buf_conv (MonoMethodBuilder *mb, MonoType *type, MonoType *etype, int len, gboolean to_object, int *out_usize)
1992 MonoClass *klass = mono_class_from_mono_type (type);
1993 MonoClass *eklass = mono_class_from_mono_type (etype);
1996 esize = mono_class_native_size (eklass, NULL);
1998 MonoMarshalNative string_encoding = klass->unicode ? MONO_NATIVE_LPWSTR : MONO_NATIVE_LPSTR;
1999 int usize = mono_class_value_size (eklass, NULL);
2000 int msize = mono_class_value_size (eklass, NULL);
2002 //printf ("FIXED: %s %d %d\n", mono_type_full_name (type), eklass->blittable, string_encoding);
2004 if (eklass->blittable) {
2005 /* copy the elements */
2006 mono_mb_emit_ldloc (mb, 1);
2007 mono_mb_emit_ldloc (mb, 0);
2008 mono_mb_emit_icon (mb, len * esize);
2009 mono_mb_emit_byte (mb, CEE_PREFIX1);
2010 mono_mb_emit_byte (mb, CEE_CPBLK);
2013 guint32 label2, label3;
2015 /* Emit marshalling loop */
2016 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2017 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2018 mono_mb_emit_stloc (mb, index_var);
2021 label2 = mono_mb_get_label (mb);
2022 mono_mb_emit_ldloc (mb, index_var);
2023 mono_mb_emit_icon (mb, len);
2024 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2026 /* src/dst is already set */
2028 /* Do the conversion */
2029 MonoTypeEnum t = etype->type;
2035 case MONO_TYPE_BOOLEAN:
2038 case MONO_TYPE_CHAR:
2044 mono_mb_emit_ldloc (mb, 1);
2045 mono_mb_emit_ldloc (mb, 0);
2046 if (t == MONO_TYPE_CHAR && string_encoding != MONO_NATIVE_LPWSTR) {
2048 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2049 mono_mb_emit_byte (mb, CEE_STIND_I2);
2051 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2052 mono_mb_emit_byte (mb, CEE_STIND_I1);
2056 mono_mb_emit_byte (mb, mono_type_to_ldind (etype));
2057 mono_mb_emit_byte (mb, mono_type_to_stind (etype));
2061 g_assert_not_reached ();
2066 mono_mb_emit_add_to_local (mb, 0, usize);
2067 mono_mb_emit_add_to_local (mb, 1, msize);
2069 mono_mb_emit_add_to_local (mb, 0, msize);
2070 mono_mb_emit_add_to_local (mb, 1, usize);
2074 mono_mb_emit_add_to_local (mb, index_var, 1);
2076 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2078 mono_mb_patch_branch (mb, label3);
2081 *out_usize = usize * len;
2085 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
2086 int offset_of_first_child_field, MonoMarshalNative string_encoding)
2088 MonoMarshalType *info;
2092 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
2094 info = mono_marshal_load_type_info (klass);
2096 if (info->native_size == 0)
2099 if (klass->blittable) {
2100 int usize = mono_class_value_size (klass, NULL);
2101 g_assert (usize == info->native_size);
2102 mono_mb_emit_ldloc (mb, 1);
2103 mono_mb_emit_ldloc (mb, 0);
2104 mono_mb_emit_icon (mb, usize);
2105 mono_mb_emit_byte (mb, CEE_PREFIX1);
2106 mono_mb_emit_byte (mb, CEE_CPBLK);
2109 mono_mb_emit_add_to_local (mb, 0, usize);
2110 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
2112 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
2113 mono_mb_emit_add_to_local (mb, 1, usize);
2118 if (klass != mono_class_try_get_safehandle_class ()) {
2119 if (mono_class_is_auto_layout (klass)) {
2120 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
2121 mono_type_full_name (&klass->byval_arg));
2122 mono_mb_emit_exception_marshal_directive (mb, msg);
2127 for (i = 0; i < info->num_fields; i++) {
2128 MonoMarshalNative ntype;
2129 MonoMarshalConv conv;
2130 MonoType *ftype = info->fields [i].field->type;
2133 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2135 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2138 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2141 msize = klass->instance_size - info->fields [i].field->offset;
2142 usize = info->native_size - info->fields [i].offset;
2144 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2145 usize = info->fields [i + 1].offset - info->fields [i].offset;
2148 if (klass != mono_class_try_get_safehandle_class ()){
2150 * FIXME: Should really check for usize==0 and msize>0, but we apply
2151 * the layout to the managed structure as well.
2154 if (mono_class_is_explicit_layout (klass) && (usize == 0)) {
2155 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2156 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2157 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2158 "reference field at the same offset as another field.",
2159 mono_type_full_name (&klass->byval_arg));
2164 case MONO_MARSHAL_CONV_NONE: {
2167 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2168 g_assert (!ftype->byref);
2169 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2170 mono_mb_emit_ldloc (mb, 1);
2171 mono_mb_emit_ldloc (mb, 0);
2172 mono_mb_emit_byte (mb, CEE_LDIND_I);
2173 mono_mb_emit_byte (mb, CEE_STIND_I);
2184 case MONO_TYPE_BOOLEAN:
2187 case MONO_TYPE_CHAR:
2193 mono_mb_emit_ldloc (mb, 1);
2194 mono_mb_emit_ldloc (mb, 0);
2195 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2197 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2198 mono_mb_emit_byte (mb, CEE_STIND_I2);
2200 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2201 mono_mb_emit_byte (mb, CEE_STIND_I1);
2204 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2205 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2208 case MONO_TYPE_VALUETYPE: {
2209 int src_var, dst_var;
2213 if (ftype->data.klass->enumtype) {
2214 ftype = mono_class_enum_basetype (ftype->data.klass);
2218 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2219 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2221 /* save the old src pointer */
2222 mono_mb_emit_ldloc (mb, 0);
2223 mono_mb_emit_stloc (mb, src_var);
2224 /* save the old dst pointer */
2225 mono_mb_emit_ldloc (mb, 1);
2226 mono_mb_emit_stloc (mb, dst_var);
2228 if (get_fixed_buffer_attr (info->fields [i].field, &etype, &len)) {
2229 emit_fixed_buf_conv (mb, ftype, etype, len, to_object, &usize);
2231 emit_struct_conv (mb, ftype->data.klass, to_object);
2234 /* restore the old src pointer */
2235 mono_mb_emit_ldloc (mb, src_var);
2236 mono_mb_emit_stloc (mb, 0);
2237 /* restore the old dst pointer */
2238 mono_mb_emit_ldloc (mb, dst_var);
2239 mono_mb_emit_stloc (mb, 1);
2242 case MONO_TYPE_OBJECT: {
2245 static MonoMethod *variant_clear = NULL;
2246 static MonoMethod *get_object_for_native_variant = NULL;
2249 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2250 if (!get_object_for_native_variant)
2251 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2252 mono_mb_emit_ldloc (mb, 1);
2253 mono_mb_emit_ldloc (mb, 0);
2254 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2255 mono_mb_emit_byte (mb, CEE_STIND_REF);
2257 mono_mb_emit_ldloc (mb, 0);
2258 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2261 static MonoMethod *get_native_variant_for_object = NULL;
2263 if (!get_native_variant_for_object)
2264 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2266 mono_mb_emit_ldloc (mb, 0);
2267 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2268 mono_mb_emit_ldloc (mb, 1);
2269 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2272 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2273 mono_mb_emit_exception_marshal_directive (mb, msg);
2279 g_warning ("marshaling type %02x not implemented", ftype->type);
2280 g_assert_not_reached ();
2285 int src_var, dst_var;
2287 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2288 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2290 /* save the old src pointer */
2291 mono_mb_emit_ldloc (mb, 0);
2292 mono_mb_emit_stloc (mb, src_var);
2293 /* save the old dst pointer */
2294 mono_mb_emit_ldloc (mb, 1);
2295 mono_mb_emit_stloc (mb, dst_var);
2298 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2300 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2302 /* restore the old src pointer */
2303 mono_mb_emit_ldloc (mb, src_var);
2304 mono_mb_emit_stloc (mb, 0);
2305 /* restore the old dst pointer */
2306 mono_mb_emit_ldloc (mb, dst_var);
2307 mono_mb_emit_stloc (mb, 1);
2312 mono_mb_emit_add_to_local (mb, 0, usize);
2313 mono_mb_emit_add_to_local (mb, 1, msize);
2315 mono_mb_emit_add_to_local (mb, 0, msize);
2316 mono_mb_emit_add_to_local (mb, 1, usize);
2322 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2324 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2328 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2330 /* Call DestroyStructure */
2331 /* FIXME: Only do this if needed */
2332 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2333 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2334 mono_mb_emit_ldloc (mb, struct_var);
2335 mono_mb_emit_icall (mb, mono_struct_delete_old);
2339 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2341 int pos_noabort, pos_noex;
2343 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2344 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2345 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2346 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2348 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2349 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2351 mono_mb_emit_icall (mb, checkpoint_func);
2352 /* Throw the exception returned by the checkpoint function, if any */
2353 mono_mb_emit_byte (mb, CEE_DUP);
2354 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2355 mono_mb_emit_byte (mb, CEE_THROW);
2356 mono_mb_patch_branch (mb, pos_noex);
2357 mono_mb_emit_byte (mb, CEE_POP);
2359 mono_mb_patch_branch (mb, pos_noabort);
2363 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2365 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2368 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2372 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2374 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2378 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2380 emit_thread_interrupt_checkpoint (mb);
2384 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2386 emit_thread_force_interrupt_checkpoint (mb);
2389 #endif /* DISABLE_JIT */
2391 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2392 static MonoAsyncResult *
2393 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2396 MonoMulticastDelegate *mcast_delegate;
2400 g_assert (delegate);
2401 mcast_delegate = (MonoMulticastDelegate *) delegate;
2402 if (mcast_delegate->delegates != NULL) {
2403 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2407 #ifndef DISABLE_REMOTING
2408 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2409 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2410 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2411 /* If the target is a proxy, make a direct call. Is proxy's work
2412 // to make the call asynchronous.
2414 MonoMethodMessage *msg;
2415 MonoDelegate *async_callback;
2417 MonoAsyncResult *ares;
2419 MonoArray *out_args;
2420 method = delegate->method;
2422 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2423 if (mono_error_set_pending_exception (&error))
2425 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2426 if (mono_error_set_pending_exception (&error))
2428 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2429 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2430 MONO_OBJECT_SETREF (msg, async_result, ares);
2431 msg->call_type = CallType_BeginInvoke;
2434 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2435 if (!mono_error_ok (&error)) {
2436 mono_error_set_pending_exception (&error);
2440 mono_set_pending_exception ((MonoException *) exc);
2446 klass = delegate->object.vtable->klass;
2448 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2450 method = mono_get_delegate_invoke (klass);
2453 MonoAsyncResult *result = mono_threadpool_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2454 mono_error_set_pending_exception (&error);
2461 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2463 int i, params_var, tmp_var;
2465 /* allocate local (pointer) *params[] */
2466 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2467 /* allocate local (pointer) tmp */
2468 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2470 /* alloate space on stack to store an array of pointers to the arguments */
2471 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2472 mono_mb_emit_byte (mb, CEE_PREFIX1);
2473 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2474 mono_mb_emit_stloc (mb, params_var);
2477 mono_mb_emit_ldloc (mb, params_var);
2478 mono_mb_emit_stloc (mb, tmp_var);
2480 if (save_this && sig->hasthis) {
2481 mono_mb_emit_ldloc (mb, tmp_var);
2482 mono_mb_emit_ldarg_addr (mb, 0);
2483 mono_mb_emit_byte (mb, CEE_STIND_I);
2484 /* tmp = tmp + sizeof (gpointer) */
2485 if (sig->param_count)
2486 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2490 for (i = 0; i < sig->param_count; i++) {
2491 mono_mb_emit_ldloc (mb, tmp_var);
2492 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2493 mono_mb_emit_byte (mb, CEE_STIND_I);
2494 /* tmp = tmp + sizeof (gpointer) */
2495 if (i < (sig->param_count - 1))
2496 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2502 #endif /* DISABLE_JIT */
2505 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2509 GString *res = g_string_new ("");
2512 g_string_append (res, prefix);
2513 g_string_append_c (res, '_');
2516 mono_type_get_desc (res, sig->ret, FALSE);
2519 g_string_append (res, "__this__");
2521 for (i = 0; i < sig->param_count; ++i) {
2522 g_string_append_c (res, '_');
2523 mono_type_get_desc (res, sig->params [i], FALSE);
2526 g_string_free (res, FALSE);
2531 * mono_marshal_get_string_encoding:
2533 * Return the string encoding which should be used for a given parameter.
2535 static MonoMarshalNative
2536 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2538 /* First try the parameter marshal info */
2540 if (spec->native == MONO_NATIVE_LPARRAY) {
2541 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2542 return spec->data.array_data.elem_type;
2545 return spec->native;
2549 return MONO_NATIVE_LPSTR;
2551 /* Then try the method level marshal info */
2552 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2553 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2554 return MONO_NATIVE_LPSTR;
2555 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2556 return MONO_NATIVE_LPWSTR;
2557 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2559 return MONO_NATIVE_LPWSTR;
2561 return MONO_NATIVE_LPSTR;
2564 return MONO_NATIVE_LPSTR;
2568 static MonoMarshalConv
2569 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2571 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2574 case MONO_NATIVE_LPWSTR:
2575 return MONO_MARSHAL_CONV_STR_LPWSTR;
2576 case MONO_NATIVE_LPSTR:
2577 case MONO_NATIVE_VBBYREFSTR:
2578 return MONO_MARSHAL_CONV_STR_LPSTR;
2579 case MONO_NATIVE_LPTSTR:
2580 return MONO_MARSHAL_CONV_STR_LPTSTR;
2581 case MONO_NATIVE_BSTR:
2582 return MONO_MARSHAL_CONV_STR_BSTR;
2583 case MONO_NATIVE_UTF8STR:
2584 return MONO_MARSHAL_CONV_STR_UTF8STR;
2586 return MONO_MARSHAL_CONV_INVALID;
2590 static MonoMarshalConv
2591 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2593 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2596 case MONO_NATIVE_LPWSTR:
2597 return MONO_MARSHAL_CONV_SB_LPWSTR;
2598 case MONO_NATIVE_LPSTR:
2599 return MONO_MARSHAL_CONV_SB_LPSTR;
2600 case MONO_NATIVE_UTF8STR:
2601 return MONO_MARSHAL_CONV_SB_UTF8STR;
2602 case MONO_NATIVE_LPTSTR:
2603 return MONO_MARSHAL_CONV_SB_LPTSTR;
2605 return MONO_MARSHAL_CONV_INVALID;
2609 static MonoMarshalConv
2610 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2612 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2617 case MONO_NATIVE_LPWSTR:
2619 return MONO_MARSHAL_CONV_LPWSTR_STR;
2620 case MONO_NATIVE_UTF8STR:
2621 return MONO_MARSHAL_CONV_UTF8STR_STR;
2622 case MONO_NATIVE_LPSTR:
2623 case MONO_NATIVE_VBBYREFSTR:
2624 return MONO_MARSHAL_CONV_LPSTR_STR;
2625 case MONO_NATIVE_LPTSTR:
2629 return MONO_MARSHAL_CONV_LPTSTR_STR;
2630 case MONO_NATIVE_BSTR:
2631 return MONO_MARSHAL_CONV_BSTR_STR;
2633 return MONO_MARSHAL_CONV_INVALID;
2637 static MonoMarshalConv
2638 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2640 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2645 case MONO_NATIVE_LPWSTR:
2647 * mono_string_builder_to_utf16 does not allocate a
2648 * new buffer, so no need to free it.
2651 return MONO_MARSHAL_CONV_LPWSTR_SB;
2652 case MONO_NATIVE_UTF8STR:
2653 return MONO_MARSHAL_CONV_UTF8STR_SB;
2654 case MONO_NATIVE_LPSTR:
2655 return MONO_MARSHAL_CONV_LPSTR_SB;
2657 case MONO_NATIVE_LPTSTR:
2658 return MONO_MARSHAL_CONV_LPTSTR_SB;
2661 return MONO_MARSHAL_CONV_INVALID;
2666 * Return whenever a field of a native structure or an array member needs to
2670 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2672 MonoMarshalNative encoding;
2675 case MONO_TYPE_VALUETYPE:
2676 /* FIXME: Optimize this */
2678 case MONO_TYPE_OBJECT:
2679 case MONO_TYPE_CLASS:
2680 if (t->data.klass == mono_defaults.stringbuilder_class) {
2682 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2686 case MONO_TYPE_STRING:
2687 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2688 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2695 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2698 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2701 mono_marshal_lock ();
2704 g_hash_table_new (hash_func, equal_func);
2705 mono_memory_barrier ();
2708 mono_marshal_unlock ();
2714 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2716 return get_cache (var, hash_func, equal_func);
2720 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2724 mono_marshal_lock ();
2725 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2726 mono_marshal_unlock ();
2733 * Create a MonoMethod from MB, set INFO as wrapper info.
2736 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2737 int max_stack, WrapperInfo *info)
2741 res = mono_mb_create_method (mb, sig, max_stack);
2743 mono_marshal_set_wrapper_info (res, info);
2747 /* Create the method from the builder and place it in the cache */
2749 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2750 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2751 int max_stack, WrapperInfo *info, gboolean *out_found)
2758 mono_marshal_lock ();
2759 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2760 mono_marshal_unlock ();
2763 newm = mono_mb_create_method (mb, sig, max_stack);
2764 mono_marshal_lock ();
2765 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2768 g_hash_table_insert (cache, key, res);
2769 mono_marshal_set_wrapper_info (res, info);
2770 mono_marshal_unlock ();
2774 mono_marshal_unlock ();
2775 mono_free_method (newm);
2783 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2784 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2787 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2791 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2794 int wrapper_type = wrapper->wrapper_type;
2797 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2800 info = mono_marshal_get_wrapper_info (wrapper);
2802 switch (wrapper_type) {
2803 case MONO_WRAPPER_REMOTING_INVOKE:
2804 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2805 case MONO_WRAPPER_XDOMAIN_INVOKE:
2806 m = info->d.remoting.method;
2807 if (wrapper->is_inflated) {
2811 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2812 * contains an uninflated method.
2814 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2815 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2819 case MONO_WRAPPER_SYNCHRONIZED:
2820 m = info->d.synchronized.method;
2821 if (wrapper->is_inflated) {
2824 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2825 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2829 case MONO_WRAPPER_UNBOX:
2830 return info->d.unbox.method;
2831 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2832 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2833 return info->d.managed_to_native.method;
2836 case MONO_WRAPPER_RUNTIME_INVOKE:
2837 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2838 return info->d.runtime_invoke.method;
2841 case MONO_WRAPPER_DELEGATE_INVOKE:
2843 return info->d.delegate_invoke.method;
2852 * mono_marshal_get_wrapper_info:
2854 * Retrieve the WrapperInfo structure associated with WRAPPER.
2857 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2859 g_assert (wrapper->wrapper_type);
2861 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2865 * mono_marshal_set_wrapper_info:
2867 * Set the WrapperInfo structure associated with the wrapper
2868 * method METHOD to INFO.
2871 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2875 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2878 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2883 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2887 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2888 info->subtype = subtype;
2893 * get_wrapper_target_class:
2895 * Return the class where a wrapper method should be placed.
2898 get_wrapper_target_class (MonoImage *image)
2905 * - can't put all wrappers into an mscorlib class, because they reference
2906 * metadata (signature) so they should be put into the same image as the
2907 * method they wrap, so they are unloaded together.
2908 * - putting them into a class with a type initalizer could cause the
2909 * initializer to be executed which can be a problem if the wrappers are
2911 * - putting them into an inflated class can cause problems if the the
2912 * class is deleted because it references an image which is unloaded.
2913 * To avoid these problems, we put the wrappers into the <Module> class of
2916 if (image_is_dynamic (image)) {
2917 klass = ((MonoDynamicImage*)image)->wrappers_type;
2919 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2920 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2928 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2929 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2933 * check_generic_wrapper_cache:
2935 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2936 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2937 * generic method definition.
2940 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2943 MonoMethod *inst, *def;
2944 MonoGenericContext *ctx;
2946 g_assert (orig_method->is_inflated);
2947 ctx = mono_method_get_context (orig_method);
2950 * Look for the instance
2952 res = mono_marshal_find_in_cache (cache, key);
2957 * Look for the definition
2959 def = mono_marshal_find_in_cache (cache, def_key);
2962 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2963 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2965 mono_memory_barrier ();
2966 mono_marshal_lock ();
2967 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2969 g_hash_table_insert (cache, key, inst);
2972 mono_marshal_unlock ();
2979 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2982 MonoMethod *inst, *res;
2985 * We use the same cache for the generic definition and the instances.
2987 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2988 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2989 mono_memory_barrier ();
2990 mono_marshal_lock ();
2991 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2993 g_hash_table_insert (cache, key, inst);
2996 mono_marshal_unlock ();
3001 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
3005 MonoMethod *inst, *def;
3008 * Look for the instance
3010 res = mono_marshal_find_in_cache (cache, orig_method->klass);
3015 * Look for the definition
3017 def = mono_marshal_find_in_cache (cache, def_method->klass);
3019 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3020 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3023 mono_memory_barrier ();
3024 mono_marshal_lock ();
3025 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3027 g_hash_table_insert (cache, orig_method->klass, inst);
3030 mono_marshal_unlock ();
3037 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
3040 MonoMethod *inst, *res;
3041 WrapperInfo *ginfo, *info;
3044 * We use the same cache for the generic definition and the instances.
3046 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3047 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3049 ginfo = mono_marshal_get_wrapper_info (def);
3051 info = (WrapperInfo *)mono_image_alloc0 (def->klass->image, sizeof (WrapperInfo));
3052 info->subtype = ginfo->subtype;
3053 if (info->subtype == WRAPPER_SUBTYPE_NONE) {
3054 info->d.delegate_invoke.method = mono_class_inflate_generic_method_checked (ginfo->d.delegate_invoke.method, ctx, &error);
3055 mono_error_assert_ok (&error);
3059 mono_memory_barrier ();
3060 mono_marshal_lock ();
3061 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3063 g_hash_table_insert (cache, orig_method->klass, inst);
3066 mono_marshal_unlock ();
3071 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
3073 MonoMethodSignature *sig;
3074 MonoMethodBuilder *mb;
3079 MonoGenericContext *ctx = NULL;
3080 MonoMethod *orig_method = NULL;
3082 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3083 !strcmp (method->name, "BeginInvoke"));
3086 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3088 if (method->is_inflated) {
3089 orig_method = method;
3090 ctx = &((MonoMethodInflated*)method)->context;
3091 method = ((MonoMethodInflated*)method)->declaring;
3094 sig = mono_signature_no_pinvoke (method);
3100 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
3101 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3105 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
3106 (GHashFunc)mono_signature_hash,
3107 (GCompareFunc)mono_metadata_signature_equal);
3108 if ((res = mono_marshal_find_in_cache (cache, sig)))
3112 g_assert (sig->hasthis);
3114 name = mono_signature_to_name (sig, "begin_invoke");
3116 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3118 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3122 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3124 mono_mb_emit_ldarg (mb, 0);
3125 mono_mb_emit_ldloc (mb, params_var);
3126 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3127 mono_mb_emit_byte (mb, CEE_RET);
3132 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3133 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3135 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3142 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
3144 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3147 MonoDomain *domain = mono_domain_get ();
3148 MonoAsyncResult *ares;
3149 MonoMethod *method = NULL;
3150 MonoMethodSignature *sig;
3151 MonoMethodMessage *msg;
3152 MonoObject *res, *exc;
3153 MonoArray *out_args;
3156 g_assert (delegate);
3158 if (!delegate->method_info) {
3159 g_assert (delegate->method);
3160 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
3161 if (!mono_error_ok (&error)) {
3162 mono_error_set_pending_exception (&error);
3165 MONO_OBJECT_SETREF (delegate, method_info, rm);
3168 if (!delegate->method_info || !delegate->method_info->method)
3169 g_assert_not_reached ();
3171 klass = delegate->object.vtable->klass;
3173 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3174 g_assert (method != NULL);
3176 sig = mono_signature_no_pinvoke (method);
3178 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3179 if (mono_error_set_pending_exception (&error))
3182 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3184 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."));
3188 if (ares->async_delegate != (MonoObject*)delegate) {
3189 mono_set_pending_exception (mono_get_exception_invalid_operation (
3190 "The IAsyncResult object provided does not match this delegate."));
3194 #ifndef DISABLE_REMOTING
3195 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3196 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3197 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3198 if (!mono_error_ok (&error)) {
3199 mono_error_set_pending_exception (&error);
3202 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3203 if (mono_error_set_pending_exception (&error))
3205 msg->call_type = CallType_EndInvoke;
3206 MONO_OBJECT_SETREF (msg, async_result, ares);
3207 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3208 if (!mono_error_ok (&error)) {
3209 mono_error_set_pending_exception (&error);
3215 res = mono_threadpool_end_invoke (ares, &out_args, &exc, &error);
3216 if (mono_error_set_pending_exception (&error))
3221 if (((MonoException*)exc)->stack_trace) {
3222 MonoError inner_error;
3223 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3224 if (is_ok (&inner_error)) {
3226 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3228 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3231 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3233 mono_set_pending_exception ((MonoException*)exc);
3236 mono_method_return_message_restore (method, params, out_args, &error);
3237 mono_error_set_pending_exception (&error);
3244 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3246 MonoType *t = mono_type_get_underlying_type (return_type);
3248 if (return_type->byref)
3249 return_type = &mono_defaults.int_class->byval_arg;
3252 case MONO_TYPE_VOID:
3253 g_assert_not_reached ();
3256 case MONO_TYPE_STRING:
3257 case MONO_TYPE_CLASS:
3258 case MONO_TYPE_OBJECT:
3259 case MONO_TYPE_ARRAY:
3260 case MONO_TYPE_SZARRAY:
3264 case MONO_TYPE_BOOLEAN:
3267 case MONO_TYPE_CHAR:
3277 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3278 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3280 case MONO_TYPE_GENERICINST:
3281 if (!mono_type_generic_inst_is_valuetype (t))
3284 case MONO_TYPE_VALUETYPE: {
3285 MonoClass *klass = mono_class_from_mono_type (return_type);
3286 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3287 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3291 case MONO_TYPE_MVAR: {
3292 MonoClass *klass = mono_class_from_mono_type (return_type);
3293 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3297 g_warning ("type 0x%x not handled", return_type->type);
3298 g_assert_not_reached ();
3301 mono_mb_emit_byte (mb, CEE_RET);
3304 #endif /* DISABLE_JIT */
3307 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3309 MonoMethodSignature *sig;
3310 MonoMethodBuilder *mb;
3315 MonoGenericContext *ctx = NULL;
3316 MonoMethod *orig_method = NULL;
3318 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3319 !strcmp (method->name, "EndInvoke"));
3322 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3324 if (method->is_inflated) {
3325 orig_method = method;
3326 ctx = &((MonoMethodInflated*)method)->context;
3327 method = ((MonoMethodInflated*)method)->declaring;
3330 sig = mono_signature_no_pinvoke (method);
3336 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3337 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3341 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3342 (GHashFunc)mono_signature_hash,
3343 (GCompareFunc)mono_metadata_signature_equal);
3344 if ((res = mono_marshal_find_in_cache (cache, sig)))
3348 g_assert (sig->hasthis);
3350 name = mono_signature_to_name (sig, "end_invoke");
3352 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3354 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3358 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3360 mono_mb_emit_ldarg (mb, 0);
3361 mono_mb_emit_ldloc (mb, params_var);
3362 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3364 if (sig->ret->type == MONO_TYPE_VOID) {
3365 mono_mb_emit_byte (mb, CEE_POP);
3366 mono_mb_emit_byte (mb, CEE_RET);
3368 mono_mb_emit_restore_result (mb, sig->ret);
3373 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3374 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3376 res = mono_mb_create_and_cache (cache, sig,
3377 mb, sig, sig->param_count + 16);
3386 MonoMethodSignature *sig;
3388 } SignaturePointerPair;
3391 signature_pointer_pair_hash (gconstpointer data)
3393 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3395 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3399 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3401 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3402 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3406 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3408 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3410 return pair->pointer == user_data;
3414 free_signature_pointer_pair (SignaturePointerPair *pair)
3420 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3422 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3424 MonoMethodBuilder *mb;
3427 gpointer cache_key = NULL;
3428 SignaturePointerPair key = { NULL, NULL };
3429 SignaturePointerPair *new_key;
3430 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3431 int pos0, pos1, pos2;
3433 MonoClass *target_class = NULL;
3434 gboolean closed_over_null = FALSE;
3435 MonoGenericContext *ctx = NULL;
3436 MonoGenericContainer *container = NULL;
3437 MonoMethod *orig_method = method;
3439 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3443 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3444 !strcmp (method->name, "Invoke"));
3446 invoke_sig = sig = mono_signature_no_pinvoke (method);
3449 * If the delegate target is null, and the target method is not static, a virtual
3450 * call is made to that method with the first delegate argument as this. This is
3451 * a non-documented .NET feature.
3454 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3455 if (target_method->is_inflated) {
3457 MonoType *target_type;
3459 g_assert (method->signature->hasthis);
3460 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3461 mono_method_get_context (method), &error);
3462 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3463 target_class = mono_class_from_mono_type (target_type);
3465 target_class = target_method->klass;
3468 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3471 if (static_method_with_first_arg_bound) {
3472 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3473 g_assert (!callvirt);
3474 invoke_sig = mono_method_signature (target_method);
3478 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3480 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3481 ctx = &((MonoMethodInflated*)method)->context;
3482 method = ((MonoMethodInflated*)method)->declaring;
3484 container = mono_method_get_generic_container (method);
3486 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
3487 g_assert (container);
3489 invoke_sig = sig = mono_signature_no_pinvoke (method);
3496 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3497 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3500 cache_key = method->klass;
3501 } else if (static_method_with_first_arg_bound) {
3502 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3503 (GHashFunc)mono_signature_hash,
3504 (GCompareFunc)mono_metadata_signature_equal);
3506 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3508 res = mono_marshal_find_in_cache (cache, invoke_sig);
3511 cache_key = invoke_sig;
3512 } else if (callvirt) {
3513 GHashTable **cache_ptr;
3515 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3517 /* We need to cache the signature+method pair */
3518 mono_marshal_lock ();
3520 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3522 key.sig = invoke_sig;
3523 key.pointer = target_method;
3524 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3525 mono_marshal_unlock ();
3529 // Inflated methods should not be in this cache because it's not stored on the imageset.
3530 g_assert (!method->is_inflated);
3531 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3532 (GHashFunc)mono_signature_hash,
3533 (GCompareFunc)mono_metadata_signature_equal);
3534 res = mono_marshal_find_in_cache (cache, sig);
3540 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3541 static_sig->hasthis = 0;
3542 if (!static_method_with_first_arg_bound)
3543 invoke_sig = static_sig;
3545 if (static_method_with_first_arg_bound)
3546 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3547 else if (closed_over_null)
3548 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3550 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3552 name = mono_signature_to_name (invoke_sig, "invoke");
3554 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3556 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3560 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3562 /* allocate local 0 (object) */
3563 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3564 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3565 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3566 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3567 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3570 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3572 g_assert (sig->hasthis);
3575 * {type: sig->ret} res;
3576 * if (delegates == null) {
3577 * return this.<target> ( args .. );
3579 * int i = 0, len = this.delegates.Length;
3581 * res = this.delegates [i].Invoke ( args .. );
3582 * } while (++i < len);
3587 /* this wrapper can be used in unmanaged-managed transitions */
3588 emit_thread_interrupt_checkpoint (mb);
3590 /* delegates = this.delegates */
3591 mono_mb_emit_ldarg (mb, 0);
3592 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3593 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3594 mono_mb_emit_stloc (mb, local_delegates);
3596 /* if (delegates == null) */
3597 mono_mb_emit_ldloc (mb, local_delegates);
3598 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3600 /* return target.<target_method|method_ptr> ( args .. ); */
3602 /* target = d.target; */
3603 mono_mb_emit_ldarg (mb, 0);
3604 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3605 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3606 mono_mb_emit_stloc (mb, local_target);
3608 /*static methods with bound first arg can have null target and still be bound*/
3609 if (!static_method_with_first_arg_bound) {
3610 /* if target != null */
3611 mono_mb_emit_ldloc (mb, local_target);
3612 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3614 /* then call this->method_ptr nonstatic */
3617 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3619 mono_mb_emit_ldloc (mb, local_target);
3620 for (i = 0; i < sig->param_count; ++i)
3621 mono_mb_emit_ldarg (mb, i + 1);
3622 mono_mb_emit_ldarg (mb, 0);
3623 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3624 mono_mb_emit_byte (mb, CEE_LDIND_I);
3625 mono_mb_emit_ldarg (mb, 0);
3626 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3627 mono_mb_emit_byte (mb, CEE_LDIND_I);
3628 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3629 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3630 mono_mb_emit_byte (mb, CEE_RET);
3633 /* else [target == null] call this->method_ptr static */
3634 mono_mb_patch_branch (mb, pos0);
3638 if (!closed_over_null) {
3639 if (target_class->valuetype) {
3640 mono_mb_emit_ldarg (mb, 1);
3641 for (i = 1; i < sig->param_count; ++i)
3642 mono_mb_emit_ldarg (mb, i + 1);
3643 mono_mb_emit_op (mb, CEE_CALL, target_method);
3645 mono_mb_emit_ldarg (mb, 1);
3646 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3647 for (i = 1; i < sig->param_count; ++i)
3648 mono_mb_emit_ldarg (mb, i + 1);
3649 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3652 mono_mb_emit_byte (mb, CEE_LDNULL);
3653 for (i = 0; i < sig->param_count; ++i)
3654 mono_mb_emit_ldarg (mb, i + 1);
3655 mono_mb_emit_op (mb, CEE_CALL, target_method);
3658 if (static_method_with_first_arg_bound) {
3659 mono_mb_emit_ldloc (mb, local_target);
3660 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3661 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3663 for (i = 0; i < sig->param_count; ++i)
3664 mono_mb_emit_ldarg (mb, i + 1);
3665 mono_mb_emit_ldarg (mb, 0);
3666 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3667 mono_mb_emit_byte (mb, CEE_LDIND_I);
3668 mono_mb_emit_ldarg (mb, 0);
3669 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3670 mono_mb_emit_byte (mb, CEE_LDIND_I);
3671 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3672 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3675 mono_mb_emit_byte (mb, CEE_RET);
3677 /* else [delegates != null] */
3678 mono_mb_patch_branch (mb, pos2);
3680 /* len = delegates.Length; */
3681 mono_mb_emit_ldloc (mb, local_delegates);
3682 mono_mb_emit_byte (mb, CEE_LDLEN);
3683 mono_mb_emit_byte (mb, CEE_CONV_I4);
3684 mono_mb_emit_stloc (mb, local_len);
3687 mono_mb_emit_icon (mb, 0);
3688 mono_mb_emit_stloc (mb, local_i);
3690 pos1 = mono_mb_get_label (mb);
3692 /* d = delegates [i]; */
3693 mono_mb_emit_ldloc (mb, local_delegates);
3694 mono_mb_emit_ldloc (mb, local_i);
3695 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3696 mono_mb_emit_stloc (mb, local_d);
3698 /* res = d.Invoke ( args .. ); */
3699 mono_mb_emit_ldloc (mb, local_d);
3700 for (i = 0; i < sig->param_count; i++)
3701 mono_mb_emit_ldarg (mb, i + 1);
3703 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3706 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3707 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3710 mono_mb_emit_stloc (mb, local_res);
3713 mono_mb_emit_add_to_local (mb, local_i, 1);
3716 mono_mb_emit_ldloc (mb, local_i);
3717 mono_mb_emit_ldloc (mb, local_len);
3718 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3722 mono_mb_emit_ldloc (mb, local_res);
3723 mono_mb_emit_byte (mb, CEE_RET);
3725 mb->skip_visibility = 1;
3726 #endif /* DISABLE_JIT */
3728 info = mono_wrapper_info_create (mb, subtype);
3729 info->d.delegate_invoke.method = method;
3734 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3735 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3736 } else if (callvirt) {
3737 new_key = g_new0 (SignaturePointerPair, 1);
3740 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3744 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3748 /* mono_method_print_code (res); */
3754 * the returned method invokes all methods in a multicast delegate.
3757 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3759 gboolean callvirt = FALSE;
3760 gboolean static_method_with_first_arg_bound = FALSE;
3761 MonoMethod *target_method = NULL;
3762 MonoMethodSignature *sig;
3764 sig = mono_signature_no_pinvoke (method);
3766 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3768 target_method = del->method;
3771 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3772 static_method_with_first_arg_bound = TRUE;
3773 target_method = del->method;
3776 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3780 MonoMethodSignature *ctor_sig;
3781 MonoMethodSignature *sig;
3784 /* protected by the marshal lock, contains CtorSigPair pointers */
3785 static GSList *strsig_list = NULL;
3787 static MonoMethodSignature *
3788 lookup_string_ctor_signature (MonoMethodSignature *sig)
3790 MonoMethodSignature *callsig;
3794 mono_marshal_lock ();
3796 for (item = strsig_list; item; item = item->next) {
3797 cs = (CtorSigPair *)item->data;
3798 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3799 * because it is lock-free.
3801 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3806 mono_marshal_unlock ();
3810 static MonoMethodSignature *
3811 add_string_ctor_signature (MonoMethod *method)
3813 MonoMethodSignature *callsig;
3816 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3817 callsig->ret = &mono_defaults.string_class->byval_arg;
3818 cs = g_new (CtorSigPair, 1);
3820 cs->ctor_sig = mono_method_signature (method);
3822 mono_marshal_lock ();
3823 strsig_list = g_slist_prepend (strsig_list, cs);
3824 mono_marshal_unlock ();
3829 * mono_marshal_get_string_ctor_signature:
3831 * Return the modified signature used by string ctors (they return the newly created
3834 MonoMethodSignature*
3835 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3837 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3839 sig = add_string_ctor_signature (method);
3845 get_runtime_invoke_type (MonoType *t, gboolean ret)
3848 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3850 /* Can't share this with 'I' as that needs another indirection */
3851 return &mono_defaults.int_class->this_arg;
3854 if (MONO_TYPE_IS_REFERENCE (t))
3855 return &mono_defaults.object_class->byval_arg;
3858 /* The result needs to be boxed */
3863 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3866 return &mono_defaults.sbyte_class->byval_arg;
3868 return &mono_defaults.int16_class->byval_arg;
3870 return &mono_defaults.int32_class->byval_arg;
3873 return &mono_defaults.int64_class->byval_arg;
3874 case MONO_TYPE_BOOLEAN:
3875 return &mono_defaults.byte_class->byval_arg;
3876 case MONO_TYPE_CHAR:
3877 return &mono_defaults.uint16_class->byval_arg;
3879 return &mono_defaults.int_class->byval_arg;
3880 case MONO_TYPE_VALUETYPE:
3881 if (t->data.klass->enumtype) {
3882 t = mono_class_enum_basetype (t->data.klass);
3892 * mono_marshal_get_runtime_invoke_sig:
3894 * Return a common signature used for sharing runtime invoke wrappers.
3896 static MonoMethodSignature*
3897 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3899 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3902 res->generic_param_count = 0;
3903 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3904 for (i = 0; i < res->param_count; ++i)
3905 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3911 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3913 /* Can't share wrappers which return a vtype since it needs to be boxed */
3914 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))
3917 return mono_metadata_signature_equal (sig1, sig2);
3925 * Emit the call to the wrapper method from a runtime invoke wrapper.
3928 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3929 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3931 gboolean virtual_, gboolean need_direct_wrapper)
3933 static MonoString *string_dummy = NULL;
3935 int *tmp_nullable_locals;
3936 gboolean void_ret = FALSE;
3937 gboolean string_ctor = method && method->string_ctor;
3939 /* to make it work with our special string constructors */
3940 if (!string_dummy) {
3941 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3942 string_dummy = mono_string_new_wrapper ("dummy");
3946 g_assert (sig->hasthis);
3947 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3952 if (mono_gc_is_moving ()) {
3953 mono_mb_emit_ptr (mb, &string_dummy);
3954 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3956 mono_mb_emit_ptr (mb, string_dummy);
3959 mono_mb_emit_ldarg (mb, 0);
3963 tmp_nullable_locals = g_new0 (int, sig->param_count);
3965 for (i = 0; i < sig->param_count; i++) {
3966 MonoType *t = sig->params [i];
3969 mono_mb_emit_ldarg (mb, 1);
3971 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3972 mono_mb_emit_byte (mb, CEE_ADD);
3976 mono_mb_emit_byte (mb, CEE_LDIND_I);
3977 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3978 * So to make this work we unbox it to a local variablee and push a reference to that.
3980 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3981 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3983 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3984 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3985 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3990 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3991 type = sig->params [i]->type;
3995 case MONO_TYPE_BOOLEAN:
3999 case MONO_TYPE_CHAR:
4008 mono_mb_emit_byte (mb, CEE_LDIND_I);
4009 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4011 case MONO_TYPE_STRING:
4012 case MONO_TYPE_CLASS:
4013 case MONO_TYPE_ARRAY:
4015 case MONO_TYPE_SZARRAY:
4016 case MONO_TYPE_OBJECT:
4017 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4019 case MONO_TYPE_GENERICINST:
4020 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4021 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4026 case MONO_TYPE_VALUETYPE:
4027 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4028 type = mono_class_enum_basetype (t->data.klass)->type;
4031 mono_mb_emit_byte (mb, CEE_LDIND_I);
4032 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4033 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4034 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4035 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4037 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4041 g_assert_not_reached ();
4046 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4047 } else if (need_direct_wrapper) {
4048 mono_mb_emit_op (mb, CEE_CALL, method);
4050 mono_mb_emit_ldarg (mb, 3);
4051 mono_mb_emit_calli (mb, callsig);
4054 if (sig->ret->byref) {
4056 g_assert_not_reached ();
4059 switch (sig->ret->type) {
4060 case MONO_TYPE_VOID:
4064 case MONO_TYPE_BOOLEAN:
4065 case MONO_TYPE_CHAR:
4078 case MONO_TYPE_VALUETYPE:
4079 case MONO_TYPE_TYPEDBYREF:
4080 case MONO_TYPE_GENERICINST:
4081 /* box value types */
4082 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4084 case MONO_TYPE_STRING:
4085 case MONO_TYPE_CLASS:
4086 case MONO_TYPE_ARRAY:
4087 case MONO_TYPE_SZARRAY:
4088 case MONO_TYPE_OBJECT:
4092 /* The result is an IntPtr */
4093 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4096 g_assert_not_reached ();
4100 mono_mb_emit_stloc (mb, loc_res);
4102 /* Convert back nullable-byref arguments */
4103 for (i = 0; i < sig->param_count; i++) {
4104 MonoType *t = sig->params [i];
4107 * Box the result and put it back into the array, the caller will have
4108 * to obtain it from there.
4110 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4111 mono_mb_emit_ldarg (mb, 1);
4112 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4113 mono_mb_emit_byte (mb, CEE_ADD);
4115 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4116 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4118 mono_mb_emit_byte (mb, CEE_STIND_REF);
4122 g_free (tmp_nullable_locals);
4126 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
4127 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4128 gboolean virtual_, gboolean need_direct_wrapper)
4131 MonoExceptionClause *clause;
4132 int loc_res, loc_exc;
4134 /* The wrapper looks like this:
4140 * } catch (Exception e) {
4148 /* allocate local 0 (object) tmp */
4149 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4150 /* allocate local 1 (object) exc */
4151 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4153 /* *exc is assumed to be initialized to NULL by the caller */
4155 mono_mb_emit_byte (mb, CEE_LDARG_2);
4156 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4161 labels [1] = mono_mb_get_label (mb);
4162 emit_thread_force_interrupt_checkpoint (mb);
4163 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4165 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4167 /* Add a try clause around the call */
4168 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
4169 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4170 clause->data.catch_class = mono_defaults.exception_class;
4171 clause->try_offset = labels [1];
4172 clause->try_len = mono_mb_get_label (mb) - labels [1];
4174 clause->handler_offset = mono_mb_get_label (mb);
4177 mono_mb_emit_stloc (mb, loc_exc);
4178 mono_mb_emit_byte (mb, CEE_LDARG_2);
4179 mono_mb_emit_ldloc (mb, loc_exc);
4180 mono_mb_emit_byte (mb, CEE_STIND_REF);
4182 mono_mb_emit_branch (mb, CEE_LEAVE);
4184 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4186 mono_mb_set_clauses (mb, 1, clause);
4188 mono_mb_patch_branch (mb, labels [2]);
4189 mono_mb_emit_ldloc (mb, loc_res);
4190 mono_mb_emit_byte (mb, CEE_RET);
4195 mono_mb_patch_branch (mb, labels [0]);
4196 emit_thread_force_interrupt_checkpoint (mb);
4197 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4199 mono_mb_emit_ldloc (mb, 0);
4200 mono_mb_emit_byte (mb, CEE_RET);
4205 * generates IL code for the runtime invoke function
4206 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4208 * we also catch exceptions if exc != null
4209 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4210 * it means that the compiled code for METHOD does not have to be looked up
4211 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4212 * its METHOD argument.
4215 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4217 MonoMethodSignature *sig, *csig, *callsig;
4218 MonoMethodBuilder *mb;
4219 GHashTable *cache = NULL;
4220 MonoClass *target_klass;
4221 MonoMethod *res = NULL;
4222 static MonoMethodSignature *cctor_signature = NULL;
4223 static MonoMethodSignature *finalize_signature = NULL;
4225 const char *param_names [16];
4226 gboolean need_direct_wrapper = FALSE;
4231 if (!cctor_signature) {
4232 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4233 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4235 if (!finalize_signature) {
4236 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4237 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4238 finalize_signature->hasthis = 1;
4242 need_direct_wrapper = TRUE;
4245 * Use a separate cache indexed by methods to speed things up and to avoid the
4246 * boundless mempool growth caused by the signature_dup stuff below.
4249 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4251 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4253 res = mono_marshal_find_in_cache (cache, method);
4257 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4258 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4260 * Array Get/Set/Address methods. The JIT implements them using inline code
4261 * so we need to create an invoke wrapper which calls the method directly.
4263 need_direct_wrapper = TRUE;
4266 if (method->string_ctor) {
4267 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4269 callsig = add_string_ctor_signature (method);
4270 /* Can't share this as we push a string as this */
4271 need_direct_wrapper = TRUE;
4273 if (method_is_dynamic (method))
4274 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4276 callsig = mono_method_signature (method);
4279 sig = mono_method_signature (method);
4281 target_klass = get_wrapper_target_class (method->klass->image);
4283 /* Try to share wrappers for non-corlib methods with simple signatures */
4284 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4285 callsig = cctor_signature;
4286 target_klass = mono_defaults.object_class;
4287 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4288 callsig = finalize_signature;
4289 target_klass = mono_defaults.object_class;
4292 if (need_direct_wrapper) {
4293 /* Already searched at the start */
4295 MonoMethodSignature *tmp_sig;
4297 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4298 GHashTable **cache_table = NULL;
4300 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4301 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4303 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4305 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4306 (GCompareFunc)runtime_invoke_signature_equal);
4308 /* from mono_marshal_find_in_cache */
4309 mono_marshal_lock ();
4310 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4311 mono_marshal_unlock ();
4318 /* Make a copy of the signature from the image mempool */
4320 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4324 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4326 csig->ret = &mono_defaults.object_class->byval_arg;
4327 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4328 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4330 csig->params [0] = &mono_defaults.object_class->byval_arg;
4331 csig->params [1] = &mono_defaults.int_class->byval_arg;
4332 csig->params [2] = &mono_defaults.int_class->byval_arg;
4333 csig->params [3] = &mono_defaults.int_class->byval_arg;
4336 /* This is called from runtime code so it has to be cdecl */
4337 csig->call_convention = MONO_CALL_C;
4340 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4341 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4345 param_names [0] = "this";
4346 param_names [1] = "params";
4347 param_names [2] = "exc";
4348 param_names [3] = "method";
4349 mono_mb_set_param_names (mb, param_names);
4351 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4354 if (need_direct_wrapper) {
4356 mb->skip_visibility = 1;
4358 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4359 info->d.runtime_invoke.method = method;
4360 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4362 /* taken from mono_mb_create_and_cache */
4363 mono_marshal_lock ();
4364 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4365 mono_marshal_unlock ();
4367 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4368 info->d.runtime_invoke.sig = callsig;
4370 /* Somebody may have created it before us */
4373 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4375 mono_marshal_lock ();
4376 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4378 GHashTable *direct_cache;
4380 g_hash_table_insert (cache, callsig, res);
4381 /* Can't insert it into wrapper_hash since the key is a signature */
4382 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4384 g_hash_table_insert (direct_cache, method, res);
4386 mono_free_method (newm);
4388 mono_marshal_unlock ();
4391 /* end mono_mb_create_and_cache */
4400 * mono_marshal_get_runtime_invoke_dynamic:
4402 * Return a method which can be used to invoke managed methods from native code
4404 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4405 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4406 * ARGS should point to an architecture specific structure containing
4407 * the arguments and space for the return value.
4408 * The other arguments are the same as for runtime_invoke (), except that
4409 * ARGS should contain the this argument too.
4410 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4411 * is only one copy of it, which is useful in full-aot.
4414 mono_marshal_get_runtime_invoke_dynamic (void)
4416 static MonoMethod *method;
4417 MonoMethodSignature *csig;
4418 MonoExceptionClause *clause;
4419 MonoMethodBuilder *mb;
4427 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4429 csig->ret = &mono_defaults.void_class->byval_arg;
4430 csig->params [0] = &mono_defaults.int_class->byval_arg;
4431 csig->params [1] = &mono_defaults.int_class->byval_arg;
4432 csig->params [2] = &mono_defaults.int_class->byval_arg;
4433 csig->params [3] = &mono_defaults.int_class->byval_arg;
4435 name = g_strdup ("runtime_invoke_dynamic");
4436 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4440 /* allocate local 0 (object) tmp */
4441 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4442 /* allocate local 1 (object) exc */
4443 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4445 /* cond set *exc to null */
4446 mono_mb_emit_byte (mb, CEE_LDARG_1);
4447 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4448 mono_mb_emit_byte (mb, 3);
4449 mono_mb_emit_byte (mb, CEE_LDARG_1);
4450 mono_mb_emit_byte (mb, CEE_LDNULL);
4451 mono_mb_emit_byte (mb, CEE_STIND_REF);
4453 emit_thread_force_interrupt_checkpoint (mb);
4455 mono_mb_emit_byte (mb, CEE_LDARG_0);
4456 mono_mb_emit_byte (mb, CEE_LDARG_2);
4457 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4458 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4460 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4462 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4463 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4464 clause->try_len = mono_mb_get_label (mb);
4467 clause->data.filter_offset = mono_mb_get_label (mb);
4469 mono_mb_emit_byte (mb, CEE_POP);
4470 mono_mb_emit_byte (mb, CEE_LDARG_1);
4471 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4472 mono_mb_emit_byte (mb, CEE_PREFIX1);
4473 mono_mb_emit_byte (mb, CEE_CGT_UN);
4474 mono_mb_emit_byte (mb, CEE_PREFIX1);
4475 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4477 clause->handler_offset = mono_mb_get_label (mb);
4480 /* store exception */
4481 mono_mb_emit_stloc (mb, 1);
4483 mono_mb_emit_byte (mb, CEE_LDARG_1);
4484 mono_mb_emit_ldloc (mb, 1);
4485 mono_mb_emit_byte (mb, CEE_STIND_REF);
4487 mono_mb_emit_byte (mb, CEE_LDNULL);
4488 mono_mb_emit_stloc (mb, 0);
4490 /* Check for the abort exception */
4491 mono_mb_emit_ldloc (mb, 1);
4492 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4493 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4495 /* Delay the abort exception */
4496 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4498 mono_mb_patch_short_branch (mb, posna);
4499 mono_mb_emit_branch (mb, CEE_LEAVE);
4501 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4503 mono_mb_set_clauses (mb, 1, clause);
4506 mono_mb_patch_branch (mb, pos);
4507 //mono_mb_emit_ldloc (mb, 0);
4508 mono_mb_emit_byte (mb, CEE_RET);
4509 #endif /* DISABLE_JIT */
4511 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4513 mono_marshal_lock ();
4514 /* double-checked locking */
4516 method = mono_mb_create (mb, csig, 16, info);
4518 mono_marshal_unlock ();
4526 * mono_marshal_get_runtime_invoke_for_sig:
4528 * Return a runtime invoke wrapper for a given signature.
4531 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4533 MonoMethodSignature *csig, *callsig;
4534 MonoMethodBuilder *mb;
4536 GHashTable *cache = NULL;
4537 GHashTable **cache_table = NULL;
4538 MonoMethod *res = NULL;
4540 const char *param_names [16];
4543 /* A simplified version of mono_marshal_get_runtime_invoke */
4545 image = mono_defaults.corlib;
4547 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4549 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4551 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4552 (GCompareFunc)runtime_invoke_signature_equal);
4554 /* from mono_marshal_find_in_cache */
4555 mono_marshal_lock ();
4556 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4557 mono_marshal_unlock ();
4564 /* Make a copy of the signature from the image mempool */
4565 callsig = mono_metadata_signature_dup_full (image, callsig);
4567 csig = mono_metadata_signature_alloc (image, 4);
4568 csig->ret = &mono_defaults.object_class->byval_arg;
4569 csig->params [0] = &mono_defaults.object_class->byval_arg;
4570 csig->params [1] = &mono_defaults.int_class->byval_arg;
4571 csig->params [2] = &mono_defaults.int_class->byval_arg;
4572 csig->params [3] = &mono_defaults.int_class->byval_arg;
4575 /* This is called from runtime code so it has to be cdecl */
4576 csig->call_convention = MONO_CALL_C;
4579 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4580 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4584 param_names [0] = "this";
4585 param_names [1] = "params";
4586 param_names [2] = "exc";
4587 param_names [3] = "method";
4588 mono_mb_set_param_names (mb, param_names);
4590 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4593 /* taken from mono_mb_create_and_cache */
4594 mono_marshal_lock ();
4595 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4596 mono_marshal_unlock ();
4598 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4599 info->d.runtime_invoke.sig = callsig;
4601 /* Somebody may have created it before us */
4604 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4606 mono_marshal_lock ();
4607 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4610 g_hash_table_insert (cache, callsig, res);
4612 mono_free_method (newm);
4614 mono_marshal_unlock ();
4617 /* end mono_mb_create_and_cache */
4626 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4628 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4629 klass->name_space, klass->name);
4631 mono_mb_emit_exception_marshal_directive (mb, msg);
4636 * generates IL code for the icall wrapper (the generated method
4637 * calls the unmanaged code in func)
4640 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4642 MonoMethodSignature *csig, *csig2;
4643 MonoMethodBuilder *mb;
4648 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4649 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4652 g_assert (sig->pinvoke);
4654 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4656 mb->method->save_lmf = 1;
4658 /* Add an explicit this argument */
4660 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4662 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4666 mono_mb_emit_byte (mb, CEE_LDARG_0);
4668 for (i = 0; i < sig->param_count; i++)
4669 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4671 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4672 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4673 mono_mb_emit_calli (mb, csig2);
4674 if (check_exceptions)
4675 emit_thread_interrupt_checkpoint (mb);
4676 mono_mb_emit_byte (mb, CEE_RET);
4679 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4681 if (csig->call_convention == MONO_CALL_VARARG)
4682 csig->call_convention = 0;
4684 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4685 info->d.icall.func = (gpointer)func;
4686 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4693 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4694 MonoMarshalSpec *spec,
4695 int conv_arg, MonoType **conv_arg_type,
4696 MarshalAction action)
4699 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4700 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4706 static MonoClass *ICustomMarshaler = NULL;
4707 static MonoMethod *cleanup_native, *cleanup_managed;
4708 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4709 MonoMethod *get_instance = NULL;
4710 MonoMethodBuilder *mb = m->mb;
4711 char *exception_msg = NULL;
4715 if (!ICustomMarshaler) {
4716 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4718 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4719 goto handle_exception;
4722 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4723 g_assert (cleanup_native);
4724 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4725 g_assert (cleanup_managed);
4726 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4727 g_assert (marshal_managed_to_native);
4728 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4729 g_assert (marshal_native_to_managed);
4731 mono_memory_barrier ();
4732 ICustomMarshaler = klass;
4735 if (spec->data.custom_data.image)
4736 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4738 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4739 g_assert (mtype != NULL);
4740 mono_error_assert_ok (&error);
4741 mklass = mono_class_from_mono_type (mtype);
4742 g_assert (mklass != NULL);
4744 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4745 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4747 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4749 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4750 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4751 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4752 (get_sig->params [0]->type != MONO_TYPE_STRING))
4753 get_instance = NULL;
4757 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);
4760 /* Throw exception and emit compensation code if neccesary */
4761 if (exception_msg) {
4763 case MARSHAL_ACTION_CONV_IN:
4764 case MARSHAL_ACTION_CONV_RESULT:
4765 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4766 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4767 mono_mb_emit_byte (mb, CEE_POP);
4769 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4770 g_free (exception_msg);
4773 case MARSHAL_ACTION_PUSH:
4774 mono_mb_emit_byte (mb, CEE_LDNULL);
4782 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4783 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4786 case MARSHAL_ACTION_CONV_IN:
4788 case MONO_TYPE_CLASS:
4789 case MONO_TYPE_OBJECT:
4790 case MONO_TYPE_STRING:
4791 case MONO_TYPE_ARRAY:
4792 case MONO_TYPE_SZARRAY:
4793 case MONO_TYPE_VALUETYPE:
4797 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4798 g_assert_not_reached ();
4802 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4804 mono_mb_emit_byte (mb, CEE_LDNULL);
4805 mono_mb_emit_stloc (mb, conv_arg);
4807 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4810 /* Minic MS.NET behavior */
4811 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4814 /* Check for null */
4815 mono_mb_emit_ldarg (mb, argnum);
4817 mono_mb_emit_byte (mb, CEE_LDIND_I);
4818 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4820 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4822 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4824 mono_mb_emit_ldarg (mb, argnum);
4826 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4828 if (t->type == MONO_TYPE_VALUETYPE) {
4830 * Since we can't determine the type of the argument, we
4831 * will assume the unmanaged function takes a pointer.
4833 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4835 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4838 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4839 mono_mb_emit_stloc (mb, conv_arg);
4841 mono_mb_patch_branch (mb, pos2);
4844 case MARSHAL_ACTION_CONV_OUT:
4845 /* Check for null */
4846 mono_mb_emit_ldloc (mb, conv_arg);
4847 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4850 mono_mb_emit_ldarg (mb, argnum);
4852 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4854 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4856 mono_mb_emit_ldloc (mb, conv_arg);
4857 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4858 mono_mb_emit_byte (mb, CEE_STIND_REF);
4859 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4860 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4862 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4864 mono_mb_emit_ldloc (mb, conv_arg);
4865 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4867 /* We have nowhere to store the result */
4868 mono_mb_emit_byte (mb, CEE_POP);
4871 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4873 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4875 mono_mb_emit_ldloc (mb, conv_arg);
4877 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4879 mono_mb_patch_branch (mb, pos2);
4882 case MARSHAL_ACTION_PUSH:
4884 mono_mb_emit_ldloc_addr (mb, conv_arg);
4886 mono_mb_emit_ldloc (mb, conv_arg);
4889 case MARSHAL_ACTION_CONV_RESULT:
4890 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4892 mono_mb_emit_stloc (mb, 3);
4894 mono_mb_emit_ldloc (mb, 3);
4895 mono_mb_emit_stloc (mb, loc1);
4897 /* Check for null */
4898 mono_mb_emit_ldloc (mb, 3);
4899 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4901 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4903 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4904 mono_mb_emit_byte (mb, CEE_DUP);
4906 mono_mb_emit_ldloc (mb, 3);
4907 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4908 mono_mb_emit_stloc (mb, 3);
4910 mono_mb_emit_ldloc (mb, loc1);
4911 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4913 mono_mb_patch_branch (mb, pos2);
4916 case MARSHAL_ACTION_MANAGED_CONV_IN:
4917 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4919 mono_mb_emit_byte (mb, CEE_LDNULL);
4920 mono_mb_emit_stloc (mb, conv_arg);
4922 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4925 /* Check for null */
4926 mono_mb_emit_ldarg (mb, argnum);
4928 mono_mb_emit_byte (mb, CEE_LDIND_I);
4929 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4931 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4932 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4934 mono_mb_emit_ldarg (mb, argnum);
4936 mono_mb_emit_byte (mb, CEE_LDIND_I);
4938 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4939 mono_mb_emit_stloc (mb, conv_arg);
4941 mono_mb_patch_branch (mb, pos2);
4944 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4945 g_assert (!t->byref);
4947 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4949 mono_mb_emit_stloc (mb, 3);
4951 mono_mb_emit_ldloc (mb, 3);
4952 mono_mb_emit_stloc (mb, loc1);
4954 /* Check for null */
4955 mono_mb_emit_ldloc (mb, 3);
4956 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4958 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4959 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4960 mono_mb_emit_byte (mb, CEE_DUP);
4962 mono_mb_emit_ldloc (mb, 3);
4963 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4964 mono_mb_emit_stloc (mb, 3);
4966 mono_mb_emit_ldloc (mb, loc1);
4967 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4969 mono_mb_patch_branch (mb, pos2);
4972 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4974 /* Check for null */
4975 mono_mb_emit_ldloc (mb, conv_arg);
4976 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4979 mono_mb_emit_ldarg (mb, argnum);
4981 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4983 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4985 mono_mb_emit_ldloc (mb, conv_arg);
4986 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4987 mono_mb_emit_byte (mb, CEE_STIND_I);
4990 /* Call CleanUpManagedData */
4991 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4993 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4995 mono_mb_emit_ldloc (mb, conv_arg);
4996 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4998 mono_mb_patch_branch (mb, pos2);
5002 g_assert_not_reached ();
5010 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5011 MonoMarshalSpec *spec,
5012 int conv_arg, MonoType **conv_arg_type,
5013 MarshalAction action)
5016 MonoMethodBuilder *mb = m->mb;
5019 case MARSHAL_ACTION_CONV_IN: {
5020 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5022 g_assert (t->type == MONO_TYPE_OBJECT);
5023 g_assert (!t->byref);
5025 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5026 mono_mb_emit_ldarg (mb, argnum);
5027 mono_mb_emit_icon (mb, encoding);
5028 mono_mb_emit_icon (mb, t->attrs);
5029 mono_mb_emit_icall (mb, mono_marshal_asany);
5030 mono_mb_emit_stloc (mb, conv_arg);
5034 case MARSHAL_ACTION_PUSH:
5035 mono_mb_emit_ldloc (mb, conv_arg);
5038 case MARSHAL_ACTION_CONV_OUT: {
5039 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5041 mono_mb_emit_ldarg (mb, argnum);
5042 mono_mb_emit_ldloc (mb, conv_arg);
5043 mono_mb_emit_icon (mb, encoding);
5044 mono_mb_emit_icon (mb, t->attrs);
5045 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5050 g_assert_not_reached ();
5057 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5058 MonoMarshalSpec *spec,
5059 int conv_arg, MonoType **conv_arg_type,
5060 MarshalAction action)
5063 MonoMethodBuilder *mb = m->mb;
5064 MonoClass *klass, *date_time_class;
5067 klass = mono_class_from_mono_type (t);
5069 date_time_class = mono_class_get_date_time_class ();
5072 case MARSHAL_ACTION_CONV_IN:
5073 if (klass == date_time_class) {
5074 /* Convert it to an OLE DATE type */
5075 static MonoMethod *to_oadate;
5078 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5079 g_assert (to_oadate);
5081 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5084 mono_mb_emit_ldarg (mb, argnum);
5085 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5088 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5090 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5092 mono_mb_emit_ldarg_addr (mb, argnum);
5093 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5094 mono_mb_emit_stloc (mb, conv_arg);
5098 mono_mb_patch_branch (mb, pos);
5102 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5105 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5107 /* store the address of the source into local variable 0 */
5109 mono_mb_emit_ldarg (mb, argnum);
5111 mono_mb_emit_ldarg_addr (mb, argnum);
5113 mono_mb_emit_stloc (mb, 0);
5115 /* allocate space for the native struct and
5116 * store the address into local variable 1 (dest) */
5117 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5118 mono_mb_emit_byte (mb, CEE_PREFIX1);
5119 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5120 mono_mb_emit_stloc (mb, conv_arg);
5123 mono_mb_emit_ldloc (mb, 0);
5124 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5127 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5129 mono_mb_emit_ldloc (mb, conv_arg);
5130 mono_mb_emit_stloc (mb, 1);
5132 /* emit valuetype conversion code */
5133 emit_struct_conv (mb, klass, FALSE);
5137 mono_mb_patch_branch (mb, pos);
5140 case MARSHAL_ACTION_PUSH:
5141 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5143 g_assert (!t->byref);
5145 /* Have to change the signature since the vtype is passed byref */
5146 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5148 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5149 mono_mb_emit_ldarg_addr (mb, argnum);
5151 mono_mb_emit_ldloc (mb, conv_arg);
5155 if (klass == date_time_class) {
5157 mono_mb_emit_ldloc_addr (mb, conv_arg);
5159 mono_mb_emit_ldloc (mb, conv_arg);
5163 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5164 mono_mb_emit_ldarg (mb, argnum);
5167 mono_mb_emit_ldloc (mb, conv_arg);
5169 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5170 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5174 case MARSHAL_ACTION_CONV_OUT:
5175 if (klass == date_time_class) {
5176 /* Convert from an OLE DATE type */
5177 static MonoMethod *from_oadate;
5182 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5184 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5185 g_assert (from_oadate);
5187 mono_mb_emit_ldarg (mb, argnum);
5188 mono_mb_emit_ldloc (mb, conv_arg);
5189 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5190 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5195 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5199 /* dst = argument */
5200 mono_mb_emit_ldarg (mb, argnum);
5201 mono_mb_emit_stloc (mb, 1);
5203 mono_mb_emit_ldloc (mb, 1);
5204 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5206 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5207 /* src = tmp_locals [i] */
5208 mono_mb_emit_ldloc (mb, conv_arg);
5209 mono_mb_emit_stloc (mb, 0);
5211 /* emit valuetype conversion code */
5212 emit_struct_conv (mb, klass, TRUE);
5216 emit_struct_free (mb, klass, conv_arg);
5219 mono_mb_patch_branch (mb, pos);
5222 case MARSHAL_ACTION_CONV_RESULT:
5223 if (mono_class_is_explicit_layout (klass) || klass->blittable) {
5224 mono_mb_emit_stloc (mb, 3);
5228 /* load pointer to returned value type */
5229 g_assert (m->vtaddr_var);
5230 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5231 /* store the address of the source into local variable 0 */
5232 mono_mb_emit_stloc (mb, 0);
5234 mono_mb_emit_ldloc_addr (mb, 3);
5235 mono_mb_emit_stloc (mb, 1);
5237 /* emit valuetype conversion code */
5238 emit_struct_conv (mb, klass, TRUE);
5241 case MARSHAL_ACTION_MANAGED_CONV_IN:
5242 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5247 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5249 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5253 mono_mb_emit_ldarg (mb, argnum);
5255 mono_mb_emit_ldarg_addr (mb, argnum);
5256 mono_mb_emit_stloc (mb, 0);
5259 mono_mb_emit_ldloc (mb, 0);
5260 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5263 mono_mb_emit_ldloc_addr (mb, conv_arg);
5264 mono_mb_emit_stloc (mb, 1);
5266 /* emit valuetype conversion code */
5267 emit_struct_conv (mb, klass, TRUE);
5270 mono_mb_patch_branch (mb, pos);
5273 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5274 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5276 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5279 /* Check for null */
5280 mono_mb_emit_ldarg (mb, argnum);
5281 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5284 mono_mb_emit_ldloc_addr (mb, conv_arg);
5285 mono_mb_emit_stloc (mb, 0);
5288 mono_mb_emit_ldarg (mb, argnum);
5289 mono_mb_emit_stloc (mb, 1);
5291 /* emit valuetype conversion code */
5292 emit_struct_conv (mb, klass, FALSE);
5294 mono_mb_patch_branch (mb, pos2);
5297 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5298 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5299 mono_mb_emit_stloc (mb, 3);
5304 /* load pointer to returned value type */
5305 g_assert (m->vtaddr_var);
5306 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5308 /* store the address of the source into local variable 0 */
5309 mono_mb_emit_stloc (mb, 0);
5310 /* allocate space for the native struct and
5311 * store the address into dst_ptr */
5312 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5313 m->retobj_class = klass;
5314 g_assert (m->retobj_var);
5315 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5316 mono_mb_emit_byte (mb, CEE_CONV_I);
5317 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5318 mono_mb_emit_stloc (mb, 1);
5319 mono_mb_emit_ldloc (mb, 1);
5320 mono_mb_emit_stloc (mb, m->retobj_var);
5322 /* emit valuetype conversion code */
5323 emit_struct_conv (mb, klass, FALSE);
5327 g_assert_not_reached ();
5334 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5335 MonoMarshalSpec *spec,
5336 int conv_arg, MonoType **conv_arg_type,
5337 MarshalAction action)
5341 case MARSHAL_ACTION_CONV_IN:
5342 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5344 case MARSHAL_ACTION_MANAGED_CONV_IN:
5345 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5349 MonoMethodBuilder *mb = m->mb;
5350 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5351 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5355 case MARSHAL_ACTION_CONV_IN:
5356 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5357 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5360 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5363 mono_mb_emit_ldarg (mb, argnum);
5364 mono_mb_emit_byte (mb, CEE_LDIND_I);
5366 mono_mb_emit_ldarg (mb, argnum);
5369 if (conv == MONO_MARSHAL_CONV_INVALID) {
5370 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5371 mono_mb_emit_exception_marshal_directive (mb, msg);
5373 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5375 mono_mb_emit_stloc (mb, conv_arg);
5379 case MARSHAL_ACTION_CONV_OUT:
5380 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5381 if (conv == MONO_MARSHAL_CONV_INVALID) {
5382 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5383 mono_mb_emit_exception_marshal_directive (mb, msg);
5387 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5388 static MonoMethod *m;
5391 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5396 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5397 mono_mb_emit_exception_marshal_directive (mb, msg);
5402 * Have to allocate a new string with the same length as the original, and
5403 * copy the contents of the buffer pointed to by CONV_ARG into it.
5405 g_assert (t->byref);
5406 mono_mb_emit_ldarg (mb, argnum);
5407 mono_mb_emit_ldloc (mb, conv_arg);
5408 mono_mb_emit_ldarg (mb, argnum);
5409 mono_mb_emit_byte (mb, CEE_LDIND_I);
5410 mono_mb_emit_managed_call (mb, m, NULL);
5411 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5412 mono_mb_emit_byte (mb, CEE_STIND_REF);
5413 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5415 mono_mb_emit_ldarg (mb, argnum);
5416 mono_mb_emit_ldloc (mb, conv_arg);
5417 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5418 mono_mb_emit_byte (mb, stind_op);
5423 mono_mb_emit_ldloc (mb, conv_arg);
5424 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5425 mono_mb_emit_icall (mb, mono_free_bstr);
5427 mono_mb_emit_icall (mb, mono_marshal_free);
5431 case MARSHAL_ACTION_PUSH:
5432 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5433 mono_mb_emit_ldloc_addr (mb, conv_arg);
5435 mono_mb_emit_ldloc (mb, conv_arg);
5438 case MARSHAL_ACTION_CONV_RESULT:
5439 mono_mb_emit_stloc (mb, 0);
5441 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5442 if (conv == MONO_MARSHAL_CONV_INVALID) {
5443 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5444 mono_mb_emit_exception_marshal_directive (mb, msg);
5448 mono_mb_emit_ldloc (mb, 0);
5449 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5450 mono_mb_emit_stloc (mb, 3);
5452 /* free the string */
5453 mono_mb_emit_ldloc (mb, 0);
5454 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5455 mono_mb_emit_icall (mb, mono_free_bstr);
5457 mono_mb_emit_icall (mb, mono_marshal_free);
5460 case MARSHAL_ACTION_MANAGED_CONV_IN:
5461 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5463 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5466 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5470 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5471 if (conv == MONO_MARSHAL_CONV_INVALID) {
5472 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5473 mono_mb_emit_exception_marshal_directive (mb, msg);
5477 mono_mb_emit_ldarg (mb, argnum);
5479 mono_mb_emit_byte (mb, CEE_LDIND_I);
5480 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5481 mono_mb_emit_stloc (mb, conv_arg);
5484 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5488 mono_mb_emit_ldarg (mb, argnum);
5489 mono_mb_emit_ldloc (mb, conv_arg);
5490 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5491 mono_mb_emit_byte (mb, stind_op);
5496 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5497 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5498 /* We need to make a copy so the caller is able to free it */
5499 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5501 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5502 mono_mb_emit_stloc (mb, 3);
5506 g_assert_not_reached ();
5514 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5515 MonoMarshalSpec *spec, int conv_arg,
5516 MonoType **conv_arg_type, MarshalAction action)
5519 if (action == MARSHAL_ACTION_CONV_IN)
5520 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5522 MonoMethodBuilder *mb = m->mb;
5525 case MARSHAL_ACTION_CONV_IN: {
5526 MonoType *intptr_type;
5527 int dar_release_slot, pos;
5529 intptr_type = &mono_defaults.int_class->byval_arg;
5530 conv_arg = mono_mb_add_local (mb, intptr_type);
5531 *conv_arg_type = intptr_type;
5533 if (!sh_dangerous_add_ref)
5534 init_safe_handle ();
5536 mono_mb_emit_ldarg (mb, argnum);
5537 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5538 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5540 mono_mb_patch_branch (mb, pos);
5543 * My tests in show that ref SafeHandles are not really
5544 * passed as ref objects. Instead a NULL is passed as the
5547 mono_mb_emit_icon (mb, 0);
5548 mono_mb_emit_stloc (mb, conv_arg);
5552 /* Create local to hold the ref parameter to DangerousAddRef */
5553 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5555 /* set release = false; */
5556 mono_mb_emit_icon (mb, 0);
5557 mono_mb_emit_stloc (mb, dar_release_slot);
5559 /* safehandle.DangerousAddRef (ref release) */
5560 mono_mb_emit_ldarg (mb, argnum);
5561 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5562 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5564 /* Pull the handle field from SafeHandle */
5565 mono_mb_emit_ldarg (mb, argnum);
5566 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5567 mono_mb_emit_byte (mb, CEE_LDIND_I);
5568 mono_mb_emit_stloc (mb, conv_arg);
5573 case MARSHAL_ACTION_PUSH:
5575 mono_mb_emit_ldloc_addr (mb, conv_arg);
5577 mono_mb_emit_ldloc (mb, conv_arg);
5580 case MARSHAL_ACTION_CONV_OUT: {
5581 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5582 int dar_release_slot = conv_arg + 1;
5585 if (!sh_dangerous_release)
5586 init_safe_handle ();
5592 * My tests indicate that ref SafeHandles parameters are not actually
5593 * passed by ref, but instead a new Handle is created regardless of
5594 * whether a change happens in the unmanaged side.
5596 * Also, the Handle is created before calling into unmanaged code,
5597 * but we do not support that mechanism (getting to the original
5598 * handle) and it makes no difference where we create this
5600 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5602 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5605 /* refval = new SafeHandleDerived ()*/
5606 mono_mb_emit_ldarg (mb, argnum);
5607 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5608 mono_mb_emit_byte (mb, CEE_STIND_REF);
5610 /* refval.handle = returned_handle */
5611 mono_mb_emit_ldarg (mb, argnum);
5612 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5613 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5614 mono_mb_emit_ldloc (mb, conv_arg);
5615 mono_mb_emit_byte (mb, CEE_STIND_I);
5617 mono_mb_emit_ldloc (mb, dar_release_slot);
5618 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5619 mono_mb_emit_ldarg (mb, argnum);
5620 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5621 mono_mb_patch_branch (mb, label_next);
5626 case MARSHAL_ACTION_CONV_RESULT: {
5627 MonoMethod *ctor = NULL;
5628 int intptr_handle_slot;
5630 if (mono_class_is_abstract (t->data.klass)) {
5631 mono_mb_emit_byte (mb, CEE_POP);
5632 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5636 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5638 mono_mb_emit_byte (mb, CEE_POP);
5639 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5642 /* Store the IntPtr results into a local */
5643 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5644 mono_mb_emit_stloc (mb, intptr_handle_slot);
5646 /* Create return value */
5647 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5648 mono_mb_emit_stloc (mb, 3);
5650 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5651 mono_mb_emit_ldloc (mb, 3);
5652 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5653 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5654 mono_mb_emit_byte (mb, CEE_STIND_I);
5658 case MARSHAL_ACTION_MANAGED_CONV_IN:
5659 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5662 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5663 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5666 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5667 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5670 printf ("Unhandled case for MarshalAction: %d\n", action);
5678 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5679 MonoMarshalSpec *spec, int conv_arg,
5680 MonoType **conv_arg_type, MarshalAction action)
5683 if (action == MARSHAL_ACTION_CONV_IN)
5684 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5686 MonoMethodBuilder *mb = m->mb;
5689 case MARSHAL_ACTION_CONV_IN: {
5690 MonoType *intptr_type;
5692 intptr_type = &mono_defaults.int_class->byval_arg;
5693 conv_arg = mono_mb_add_local (mb, intptr_type);
5694 *conv_arg_type = intptr_type;
5697 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5698 mono_mb_emit_exception_marshal_directive (mb, msg);
5701 mono_mb_emit_ldarg_addr (mb, argnum);
5702 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5703 mono_mb_emit_byte (mb, CEE_ADD);
5704 mono_mb_emit_byte (mb, CEE_LDIND_I);
5705 mono_mb_emit_stloc (mb, conv_arg);
5709 case MARSHAL_ACTION_PUSH:
5710 mono_mb_emit_ldloc (mb, conv_arg);
5713 case MARSHAL_ACTION_CONV_OUT: {
5714 /* no resource release required */
5718 case MARSHAL_ACTION_CONV_RESULT: {
5719 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5720 mono_mb_emit_exception_marshal_directive (mb, msg);
5724 case MARSHAL_ACTION_MANAGED_CONV_IN:
5725 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5728 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5729 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5732 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5733 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5736 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5744 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5745 MonoMarshalSpec *spec,
5746 int conv_arg, MonoType **conv_arg_type,
5747 MarshalAction action)
5750 if (action == MARSHAL_ACTION_CONV_IN)
5751 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5753 MonoMethodBuilder *mb = m->mb;
5754 MonoClass *klass = mono_class_from_mono_type (t);
5758 case MARSHAL_ACTION_CONV_IN:
5759 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5760 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5762 m->orig_conv_args [argnum] = 0;
5764 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5765 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5766 mono_mb_emit_exception_marshal_directive (mb, msg);
5770 if (klass->delegate) {
5772 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5773 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5774 mono_mb_emit_exception_marshal_directive (mb, msg);
5776 mono_mb_emit_byte (mb, CEE_LDNULL);
5777 mono_mb_emit_stloc (mb, conv_arg);
5779 mono_mb_emit_ldarg (mb, argnum);
5780 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5781 mono_mb_emit_stloc (mb, conv_arg);
5783 } else if (klass == mono_defaults.stringbuilder_class) {
5784 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5785 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5789 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5790 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5791 mono_mb_emit_exception_marshal_directive (mb, msg);
5797 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5800 if (conv == MONO_MARSHAL_CONV_INVALID) {
5801 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5802 mono_mb_emit_exception_marshal_directive (mb, msg);
5806 mono_mb_emit_ldarg (mb, argnum);
5808 mono_mb_emit_byte (mb, CEE_LDIND_I);
5810 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5811 mono_mb_emit_stloc (mb, conv_arg);
5812 } else if (klass->blittable) {
5813 mono_mb_emit_byte (mb, CEE_LDNULL);
5814 mono_mb_emit_stloc (mb, conv_arg);
5816 mono_mb_emit_ldarg (mb, argnum);
5817 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5819 mono_mb_emit_ldarg (mb, argnum);
5820 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5821 mono_mb_emit_stloc (mb, conv_arg);
5823 mono_mb_patch_branch (mb, pos);
5826 mono_mb_emit_byte (mb, CEE_LDNULL);
5827 mono_mb_emit_stloc (mb, conv_arg);
5830 /* we dont need any conversions for out parameters */
5831 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5834 mono_mb_emit_ldarg (mb, argnum);
5835 mono_mb_emit_byte (mb, CEE_LDIND_I);
5838 mono_mb_emit_ldarg (mb, argnum);
5839 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5840 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5843 /* store the address of the source into local variable 0 */
5844 mono_mb_emit_stloc (mb, 0);
5845 mono_mb_emit_ldloc (mb, 0);
5846 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5848 /* allocate space for the native struct and store the address */
5849 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5850 mono_mb_emit_byte (mb, CEE_PREFIX1);
5851 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5852 mono_mb_emit_stloc (mb, conv_arg);
5855 /* Need to store the original buffer so we can free it later */
5856 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5857 mono_mb_emit_ldloc (mb, conv_arg);
5858 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5861 /* set the src_ptr */
5862 mono_mb_emit_ldloc (mb, 0);
5863 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5864 mono_mb_emit_stloc (mb, 0);
5867 mono_mb_emit_ldloc (mb, conv_arg);
5868 mono_mb_emit_stloc (mb, 1);
5870 /* emit valuetype conversion code */
5871 emit_struct_conv (mb, klass, FALSE);
5873 mono_mb_patch_branch (mb, pos);
5877 case MARSHAL_ACTION_CONV_OUT:
5878 if (klass == mono_defaults.stringbuilder_class) {
5880 MonoMarshalNative encoding;
5881 MonoMarshalConv conv;
5883 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5884 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5886 g_assert (encoding != -1);
5889 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5893 mono_mb_emit_ldarg (mb, argnum);
5894 mono_mb_emit_ldloc (mb, conv_arg);
5897 case MONO_NATIVE_LPWSTR:
5898 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5900 case MONO_NATIVE_LPSTR:
5901 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5903 case MONO_NATIVE_UTF8STR:
5904 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5907 g_assert_not_reached ();
5910 mono_mb_emit_byte (mb, CEE_STIND_REF);
5912 mono_mb_emit_ldarg (mb, argnum);
5913 mono_mb_emit_ldloc (mb, conv_arg);
5915 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5919 mono_mb_emit_ldloc (mb, conv_arg);
5920 mono_mb_emit_icall (mb, mono_marshal_free);
5925 if (klass->delegate) {
5927 mono_mb_emit_ldarg (mb, argnum);
5928 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5929 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5930 mono_mb_emit_ldloc (mb, conv_arg);
5931 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5932 mono_mb_emit_byte (mb, CEE_STIND_REF);
5937 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5938 /* allocate a new object */
5939 mono_mb_emit_ldarg (mb, argnum);
5940 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5941 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5942 mono_mb_emit_byte (mb, CEE_STIND_REF);
5945 /* dst = *argument */
5946 mono_mb_emit_ldarg (mb, argnum);
5949 mono_mb_emit_byte (mb, CEE_LDIND_I);
5951 mono_mb_emit_stloc (mb, 1);
5953 mono_mb_emit_ldloc (mb, 1);
5954 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5956 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5957 mono_mb_emit_ldloc (mb, 1);
5958 mono_mb_emit_icon (mb, sizeof (MonoObject));
5959 mono_mb_emit_byte (mb, CEE_ADD);
5960 mono_mb_emit_stloc (mb, 1);
5962 /* src = tmp_locals [i] */
5963 mono_mb_emit_ldloc (mb, conv_arg);
5964 mono_mb_emit_stloc (mb, 0);
5966 /* emit valuetype conversion code */
5967 emit_struct_conv (mb, klass, TRUE);
5969 /* Free the structure returned by the native code */
5970 emit_struct_free (mb, klass, conv_arg);
5972 if (m->orig_conv_args [argnum]) {
5974 * If the native function changed the pointer, then free
5975 * the original structure plus the new pointer.
5977 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5978 mono_mb_emit_ldloc (mb, conv_arg);
5979 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5981 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5982 g_assert (m->orig_conv_args [argnum]);
5984 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5987 mono_mb_emit_ldloc (mb, conv_arg);
5988 mono_mb_emit_icall (mb, mono_marshal_free);
5990 mono_mb_patch_branch (mb, pos2);
5994 /* Free the original structure passed to native code */
5995 emit_struct_free (mb, klass, conv_arg);
5997 mono_mb_patch_branch (mb, pos);
6000 case MARSHAL_ACTION_PUSH:
6002 mono_mb_emit_ldloc_addr (mb, conv_arg);
6004 mono_mb_emit_ldloc (mb, conv_arg);
6007 case MARSHAL_ACTION_CONV_RESULT:
6008 if (klass->delegate) {
6009 g_assert (!t->byref);
6010 mono_mb_emit_stloc (mb, 0);
6011 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6012 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6013 mono_mb_emit_ldloc (mb, 0);
6014 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6015 mono_mb_emit_stloc (mb, 3);
6016 } else if (klass == mono_defaults.stringbuilder_class){
6020 mono_mb_emit_stloc (mb, 0);
6022 /* Make a copy since emit_conv modifies local 0 */
6023 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6024 mono_mb_emit_ldloc (mb, 0);
6025 mono_mb_emit_stloc (mb, loc);
6027 mono_mb_emit_byte (mb, CEE_LDNULL);
6028 mono_mb_emit_stloc (mb, 3);
6030 mono_mb_emit_ldloc (mb, 0);
6031 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6033 /* allocate result object */
6035 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6036 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6037 mono_mb_emit_stloc (mb, 3);
6041 mono_mb_emit_ldloc (mb, 3);
6042 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6043 mono_mb_emit_stloc (mb, 1);
6045 /* emit conversion code */
6046 emit_struct_conv (mb, klass, TRUE);
6048 emit_struct_free (mb, klass, loc);
6050 /* Free the pointer allocated by unmanaged code */
6051 mono_mb_emit_ldloc (mb, loc);
6052 mono_mb_emit_icall (mb, mono_marshal_free);
6053 mono_mb_patch_branch (mb, pos);
6057 case MARSHAL_ACTION_MANAGED_CONV_IN:
6058 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6060 if (klass->delegate) {
6061 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6062 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6063 mono_mb_emit_ldarg (mb, argnum);
6065 mono_mb_emit_byte (mb, CEE_LDIND_I);
6066 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6067 mono_mb_emit_stloc (mb, conv_arg);
6071 if (klass == mono_defaults.stringbuilder_class) {
6072 MonoMarshalNative encoding;
6074 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6077 g_assert (encoding == MONO_NATIVE_LPSTR || encoding == MONO_NATIVE_UTF8STR);
6079 g_assert (!t->byref);
6080 g_assert (encoding != -1);
6082 mono_mb_emit_ldarg (mb, argnum);
6083 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6084 mono_mb_emit_stloc (mb, conv_arg);
6088 /* The class can not have an automatic layout */
6089 if (mono_class_is_auto_layout (klass)) {
6090 mono_mb_emit_auto_layout_exception (mb, klass);
6094 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6095 mono_mb_emit_byte (mb, CEE_LDNULL);
6096 mono_mb_emit_stloc (mb, conv_arg);
6101 mono_mb_emit_ldarg (mb, argnum);
6105 /* Check for NULL and raise an exception */
6106 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6108 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6110 mono_mb_patch_branch (mb, pos2);
6111 mono_mb_emit_ldarg (mb, argnum);
6112 mono_mb_emit_byte (mb, CEE_LDIND_I);
6115 mono_mb_emit_stloc (mb, 0);
6117 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6118 mono_mb_emit_stloc (mb, conv_arg);
6120 mono_mb_emit_ldloc (mb, 0);
6121 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6123 /* Create and set dst */
6124 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6125 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6126 mono_mb_emit_stloc (mb, conv_arg);
6127 mono_mb_emit_ldloc (mb, conv_arg);
6128 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6129 mono_mb_emit_stloc (mb, 1);
6131 /* emit valuetype conversion code */
6132 emit_struct_conv (mb, klass, TRUE);
6134 mono_mb_patch_branch (mb, pos);
6137 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6138 if (klass->delegate) {
6141 mono_mb_emit_ldarg (mb, argnum);
6142 mono_mb_emit_ldloc (mb, conv_arg);
6143 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
6144 mono_mb_emit_byte (mb, stind_op);
6150 /* Check for null */
6151 mono_mb_emit_ldloc (mb, conv_arg);
6152 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6153 mono_mb_emit_ldarg (mb, argnum);
6154 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6155 mono_mb_emit_byte (mb, CEE_STIND_REF);
6156 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6158 mono_mb_patch_branch (mb, pos);
6161 mono_mb_emit_ldloc (mb, conv_arg);
6162 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6163 mono_mb_emit_stloc (mb, 0);
6165 /* Allocate and set dest */
6166 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6167 mono_mb_emit_byte (mb, CEE_CONV_I);
6168 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6169 mono_mb_emit_stloc (mb, 1);
6171 /* Update argument pointer */
6172 mono_mb_emit_ldarg (mb, argnum);
6173 mono_mb_emit_ldloc (mb, 1);
6174 mono_mb_emit_byte (mb, CEE_STIND_I);
6176 /* emit valuetype conversion code */
6177 emit_struct_conv (mb, klass, FALSE);
6179 mono_mb_patch_branch (mb, pos2);
6180 } else if (klass == mono_defaults.stringbuilder_class) {
6181 // FIXME: What to do here ?
6183 /* byval [Out] marshalling */
6185 /* FIXME: Handle null */
6188 mono_mb_emit_ldloc (mb, conv_arg);
6189 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6190 mono_mb_emit_stloc (mb, 0);
6193 mono_mb_emit_ldarg (mb, argnum);
6194 mono_mb_emit_stloc (mb, 1);
6196 /* emit valuetype conversion code */
6197 emit_struct_conv (mb, klass, FALSE);
6201 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6202 if (klass->delegate) {
6203 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6204 mono_mb_emit_stloc (mb, 3);
6208 /* The class can not have an automatic layout */
6209 if (mono_class_is_auto_layout (klass)) {
6210 mono_mb_emit_auto_layout_exception (mb, klass);
6214 mono_mb_emit_stloc (mb, 0);
6215 /* Check for null */
6216 mono_mb_emit_ldloc (mb, 0);
6217 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6218 mono_mb_emit_byte (mb, CEE_LDNULL);
6219 mono_mb_emit_stloc (mb, 3);
6220 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6222 mono_mb_patch_branch (mb, pos);
6225 mono_mb_emit_ldloc (mb, 0);
6226 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6227 mono_mb_emit_stloc (mb, 0);
6229 /* Allocate and set dest */
6230 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6231 mono_mb_emit_byte (mb, CEE_CONV_I);
6232 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6233 mono_mb_emit_byte (mb, CEE_DUP);
6234 mono_mb_emit_stloc (mb, 1);
6235 mono_mb_emit_stloc (mb, 3);
6237 emit_struct_conv (mb, klass, FALSE);
6239 mono_mb_patch_branch (mb, pos2);
6243 g_assert_not_reached ();
6254 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6255 MonoMarshalSpec *spec,
6256 int conv_arg, MonoType **conv_arg_type,
6257 MarshalAction action)
6259 MonoMethodBuilder *mb = m->mb;
6260 static MonoMethod *get_object_for_native_variant = NULL;
6261 static MonoMethod *get_native_variant_for_object = NULL;
6263 if (!get_object_for_native_variant)
6264 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6265 g_assert (get_object_for_native_variant);
6267 if (!get_native_variant_for_object)
6268 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6269 g_assert (get_native_variant_for_object);
6272 case MARSHAL_ACTION_CONV_IN: {
6273 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6276 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6278 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6280 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6283 mono_mb_emit_ldarg (mb, argnum);
6285 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6286 mono_mb_emit_ldloc_addr (mb, conv_arg);
6287 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6291 case MARSHAL_ACTION_CONV_OUT: {
6292 static MonoMethod *variant_clear = NULL;
6295 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6296 g_assert (variant_clear);
6299 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6300 mono_mb_emit_ldarg (mb, argnum);
6301 mono_mb_emit_ldloc_addr (mb, conv_arg);
6302 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6303 mono_mb_emit_byte (mb, CEE_STIND_REF);
6306 mono_mb_emit_ldloc_addr (mb, conv_arg);
6307 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6311 case MARSHAL_ACTION_PUSH:
6313 mono_mb_emit_ldloc_addr (mb, conv_arg);
6315 mono_mb_emit_ldloc (mb, conv_arg);
6318 case MARSHAL_ACTION_CONV_RESULT: {
6319 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6320 mono_mb_emit_exception_marshal_directive (mb, msg);
6324 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6325 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6328 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6330 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6332 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6336 mono_mb_emit_ldarg (mb, argnum);
6338 mono_mb_emit_ldarg_addr (mb, argnum);
6339 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6340 mono_mb_emit_stloc (mb, conv_arg);
6344 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6345 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6346 mono_mb_emit_ldloc (mb, conv_arg);
6347 mono_mb_emit_ldarg (mb, argnum);
6348 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6353 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6354 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6355 mono_mb_emit_exception_marshal_directive (mb, msg);
6360 g_assert_not_reached ();
6366 #endif /* DISABLE_COM */
6367 #endif /* DISABLE_JIT */
6370 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6372 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6373 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6375 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6377 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6389 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6390 MonoMarshalSpec *spec,
6391 int conv_arg, MonoType **conv_arg_type,
6392 MarshalAction action)
6396 case MARSHAL_ACTION_CONV_IN:
6397 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6399 case MARSHAL_ACTION_MANAGED_CONV_IN:
6400 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6404 MonoMethodBuilder *mb = m->mb;
6405 MonoClass *klass = mono_class_from_mono_type (t);
6406 gboolean need_convert, need_free;
6407 MonoMarshalNative encoding;
6409 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6412 case MARSHAL_ACTION_CONV_IN:
6413 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6414 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6416 if (klass->element_class->blittable) {
6417 mono_mb_emit_ldarg (mb, argnum);
6419 mono_mb_emit_byte (mb, CEE_LDIND_I);
6420 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6421 mono_mb_emit_stloc (mb, conv_arg);
6424 guint32 label1, label2, label3;
6425 int index_var, src_var, dest_ptr, esize;
6426 MonoMarshalConv conv;
6427 gboolean is_string = FALSE;
6429 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6431 eklass = klass->element_class;
6433 if (eklass == mono_defaults.string_class) {
6435 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6437 else if (eklass == mono_defaults.stringbuilder_class) {
6439 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6442 conv = MONO_MARSHAL_CONV_INVALID;
6444 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6445 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6446 mono_mb_emit_exception_marshal_directive (mb, msg);
6450 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6451 mono_mb_emit_ldarg (mb, argnum);
6453 mono_mb_emit_byte (mb, CEE_LDIND_I);
6454 mono_mb_emit_stloc (mb, src_var);
6457 mono_mb_emit_ldloc (mb, src_var);
6458 mono_mb_emit_stloc (mb, conv_arg);
6459 mono_mb_emit_ldloc (mb, src_var);
6460 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6463 esize = sizeof (gpointer);
6464 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6465 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6467 esize = mono_class_native_size (eklass, NULL);
6469 /* allocate space for the native struct and store the address */
6470 mono_mb_emit_icon (mb, esize);
6471 mono_mb_emit_ldloc (mb, src_var);
6472 mono_mb_emit_byte (mb, CEE_LDLEN);
6474 if (eklass == mono_defaults.string_class) {
6475 /* Make the array bigger for the terminating null */
6476 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6477 mono_mb_emit_byte (mb, CEE_ADD);
6479 mono_mb_emit_byte (mb, CEE_MUL);
6480 mono_mb_emit_byte (mb, CEE_PREFIX1);
6481 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6482 mono_mb_emit_stloc (mb, conv_arg);
6484 mono_mb_emit_ldloc (mb, conv_arg);
6485 mono_mb_emit_stloc (mb, dest_ptr);
6487 /* Emit marshalling loop */
6488 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6489 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6490 mono_mb_emit_stloc (mb, index_var);
6491 label2 = mono_mb_get_label (mb);
6492 mono_mb_emit_ldloc (mb, index_var);
6493 mono_mb_emit_ldloc (mb, src_var);
6494 mono_mb_emit_byte (mb, CEE_LDLEN);
6495 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6497 /* Emit marshalling code */
6501 mono_mb_emit_ldloc (mb, dest_ptr);
6502 mono_mb_emit_ldloc (mb, src_var);
6503 mono_mb_emit_ldloc (mb, index_var);
6504 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6505 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6506 mono_mb_emit_byte (mb, stind_op);
6508 /* set the src_ptr */
6509 mono_mb_emit_ldloc (mb, src_var);
6510 mono_mb_emit_ldloc (mb, index_var);
6511 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6512 mono_mb_emit_stloc (mb, 0);
6515 mono_mb_emit_ldloc (mb, dest_ptr);
6516 mono_mb_emit_stloc (mb, 1);
6518 /* emit valuetype conversion code */
6519 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6522 mono_mb_emit_add_to_local (mb, index_var, 1);
6523 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6525 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6527 mono_mb_patch_branch (mb, label3);
6529 if (eklass == mono_defaults.string_class) {
6530 /* Null terminate */
6531 mono_mb_emit_ldloc (mb, dest_ptr);
6532 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6533 mono_mb_emit_byte (mb, CEE_STIND_REF);
6536 mono_mb_patch_branch (mb, label1);
6541 case MARSHAL_ACTION_CONV_OUT:
6542 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6543 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);
6544 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6547 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6548 int param_num = spec->data.array_data.param_num;
6549 MonoType *param_type;
6551 param_type = m->sig->params [param_num];
6553 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6554 char *msg = g_strdup ("Not implemented.");
6555 mono_mb_emit_exception_marshal_directive (mb, msg);
6560 mono_mb_emit_ldarg (mb, argnum);
6562 /* Create the managed array */
6563 mono_mb_emit_ldarg (mb, param_num);
6564 if (m->sig->params [param_num]->byref)
6565 // FIXME: Support other types
6566 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6567 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6568 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6569 /* Store into argument */
6570 mono_mb_emit_byte (mb, CEE_STIND_REF);
6574 if (need_convert || need_free) {
6575 /* FIXME: Optimize blittable case */
6577 guint32 label1, label2, label3;
6578 int index_var, src_ptr, loc, esize;
6580 eklass = klass->element_class;
6581 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6582 esize = sizeof (gpointer);
6583 else if (eklass == mono_defaults.char_class)
6584 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6586 esize = mono_class_native_size (eklass, NULL);
6587 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6588 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6591 mono_mb_emit_ldarg (mb, argnum);
6593 mono_mb_emit_byte (mb, CEE_LDIND_I);
6594 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6596 mono_mb_emit_ldloc (mb, conv_arg);
6597 mono_mb_emit_stloc (mb, src_ptr);
6599 /* Emit marshalling loop */
6600 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6601 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6602 mono_mb_emit_stloc (mb, index_var);
6603 label2 = mono_mb_get_label (mb);
6604 mono_mb_emit_ldloc (mb, index_var);
6605 mono_mb_emit_ldarg (mb, argnum);
6607 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6608 mono_mb_emit_byte (mb, CEE_LDLEN);
6609 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6611 /* Emit marshalling code */
6613 if (eklass == mono_defaults.stringbuilder_class) {
6614 gboolean need_free2;
6615 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6617 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6620 mono_mb_emit_ldarg (mb, argnum);
6622 mono_mb_emit_byte (mb, CEE_LDIND_I);
6623 mono_mb_emit_ldloc (mb, index_var);
6624 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6627 mono_mb_emit_ldloc (mb, src_ptr);
6628 mono_mb_emit_byte (mb, CEE_LDIND_I);
6630 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6634 mono_mb_emit_ldloc (mb, src_ptr);
6635 mono_mb_emit_byte (mb, CEE_LDIND_I);
6637 mono_mb_emit_icall (mb, mono_marshal_free);
6640 else if (eklass == mono_defaults.string_class) {
6643 mono_mb_emit_ldloc (mb, src_ptr);
6644 mono_mb_emit_byte (mb, CEE_LDIND_I);
6646 mono_mb_emit_icall (mb, mono_marshal_free);
6651 /* set the src_ptr */
6652 mono_mb_emit_ldloc (mb, src_ptr);
6653 mono_mb_emit_stloc (mb, 0);
6656 mono_mb_emit_ldarg (mb, argnum);
6658 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6659 mono_mb_emit_ldloc (mb, index_var);
6660 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6661 mono_mb_emit_stloc (mb, 1);
6663 /* emit valuetype conversion code */
6664 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6668 mono_mb_emit_ldloc (mb, src_ptr);
6669 mono_mb_emit_stloc (mb, loc);
6670 mono_mb_emit_ldloc (mb, loc);
6672 emit_struct_free (mb, eklass, loc);
6676 mono_mb_emit_add_to_local (mb, index_var, 1);
6677 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6679 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6681 mono_mb_patch_branch (mb, label1);
6682 mono_mb_patch_branch (mb, label3);
6685 if (klass->element_class->blittable) {
6686 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6688 mono_mb_emit_ldarg (mb, argnum);
6690 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6691 mono_mb_emit_ldloc (mb, conv_arg);
6692 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6697 case MARSHAL_ACTION_PUSH:
6699 mono_mb_emit_ldloc_addr (mb, conv_arg);
6701 mono_mb_emit_ldloc (mb, conv_arg);
6704 case MARSHAL_ACTION_CONV_RESULT:
6705 /* fixme: we need conversions here */
6706 mono_mb_emit_stloc (mb, 3);
6709 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6711 guint32 label1, label2, label3;
6712 int index_var, src_ptr, esize, param_num, num_elem;
6713 MonoMarshalConv conv;
6714 gboolean is_string = FALSE;
6716 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6717 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6720 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6721 mono_mb_emit_exception_marshal_directive (mb, msg);
6725 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6726 mono_mb_emit_exception_marshal_directive (mb, msg);
6729 if (spec->native != MONO_NATIVE_LPARRAY) {
6730 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6731 mono_mb_emit_exception_marshal_directive (mb, msg);
6735 /* FIXME: t is from the method which is wrapped, not the delegate type */
6736 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6738 param_num = spec->data.array_data.param_num;
6739 num_elem = spec->data.array_data.num_elem;
6740 if (spec->data.array_data.elem_mult == 0)
6741 /* param_num is not specified */
6744 if (param_num == -1) {
6745 if (num_elem <= 0) {
6746 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6747 mono_mb_emit_exception_marshal_directive (mb, msg);
6752 /* FIXME: Optimize blittable case */
6754 eklass = klass->element_class;
6755 if (eklass == mono_defaults.string_class) {
6757 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6759 else if (eklass == mono_defaults.stringbuilder_class) {
6761 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6764 conv = MONO_MARSHAL_CONV_INVALID;
6766 mono_marshal_load_type_info (eklass);
6769 esize = sizeof (gpointer);
6771 esize = mono_class_native_size (eklass, NULL);
6772 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6774 mono_mb_emit_byte (mb, CEE_LDNULL);
6775 mono_mb_emit_stloc (mb, conv_arg);
6777 /* Check param index */
6778 if (param_num != -1) {
6779 if (param_num >= m->sig->param_count) {
6780 char *msg = g_strdup ("Array size control parameter index is out of range.");
6781 mono_mb_emit_exception_marshal_directive (mb, msg);
6784 switch (m->sig->params [param_num]->type) {
6797 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6798 mono_mb_emit_exception_marshal_directive (mb, msg);
6805 mono_mb_emit_ldarg (mb, argnum);
6806 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6808 mono_mb_emit_ldarg (mb, argnum);
6809 mono_mb_emit_stloc (mb, src_ptr);
6811 /* Create managed array */
6813 * The LPArray marshalling spec says that sometimes param_num starts
6814 * from 1, sometimes it starts from 0. But MS seems to allways start
6818 if (param_num == -1) {
6819 mono_mb_emit_icon (mb, num_elem);
6821 mono_mb_emit_ldarg (mb, param_num);
6823 mono_mb_emit_icon (mb, num_elem);
6824 mono_mb_emit_byte (mb, CEE_ADD);
6826 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6829 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6830 mono_mb_emit_stloc (mb, conv_arg);
6832 if (eklass->blittable) {
6833 mono_mb_emit_ldloc (mb, conv_arg);
6834 mono_mb_emit_byte (mb, CEE_CONV_I);
6835 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6836 mono_mb_emit_byte (mb, CEE_ADD);
6837 mono_mb_emit_ldarg (mb, argnum);
6838 mono_mb_emit_ldloc (mb, conv_arg);
6839 mono_mb_emit_byte (mb, CEE_LDLEN);
6840 mono_mb_emit_icon (mb, esize);
6841 mono_mb_emit_byte (mb, CEE_MUL);
6842 mono_mb_emit_byte (mb, CEE_PREFIX1);
6843 mono_mb_emit_byte (mb, CEE_CPBLK);
6844 mono_mb_patch_branch (mb, label1);
6848 /* Emit marshalling loop */
6849 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6850 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6851 mono_mb_emit_stloc (mb, index_var);
6852 label2 = mono_mb_get_label (mb);
6853 mono_mb_emit_ldloc (mb, index_var);
6854 mono_mb_emit_ldloc (mb, conv_arg);
6855 mono_mb_emit_byte (mb, CEE_LDLEN);
6856 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6858 /* Emit marshalling code */
6860 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6862 mono_mb_emit_ldloc (mb, conv_arg);
6863 mono_mb_emit_ldloc (mb, index_var);
6865 mono_mb_emit_ldloc (mb, src_ptr);
6866 mono_mb_emit_byte (mb, CEE_LDIND_I);
6868 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6869 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6872 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6873 mono_mb_emit_exception_marshal_directive (mb, msg);
6877 mono_mb_emit_add_to_local (mb, index_var, 1);
6878 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6880 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6882 mono_mb_patch_branch (mb, label1);
6883 mono_mb_patch_branch (mb, label3);
6887 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6889 guint32 label1, label2, label3;
6890 int index_var, dest_ptr, esize, param_num, num_elem;
6891 MonoMarshalConv conv;
6892 gboolean is_string = FALSE;
6895 /* Already handled in CONV_IN */
6898 /* These are already checked in CONV_IN */
6899 g_assert (!t->byref);
6900 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6901 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6903 param_num = spec->data.array_data.param_num;
6904 num_elem = spec->data.array_data.num_elem;
6906 if (spec->data.array_data.elem_mult == 0)
6907 /* param_num is not specified */
6910 if (param_num == -1) {
6911 if (num_elem <= 0) {
6912 g_assert_not_reached ();
6916 /* FIXME: Optimize blittable case */
6918 eklass = klass->element_class;
6919 if (eklass == mono_defaults.string_class) {
6921 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6923 else if (eklass == mono_defaults.stringbuilder_class) {
6925 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6928 conv = MONO_MARSHAL_CONV_INVALID;
6930 mono_marshal_load_type_info (eklass);
6933 esize = sizeof (gpointer);
6935 esize = mono_class_native_size (eklass, NULL);
6937 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6940 mono_mb_emit_ldloc (mb, conv_arg);
6941 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6943 mono_mb_emit_ldarg (mb, argnum);
6944 mono_mb_emit_stloc (mb, dest_ptr);
6946 if (eklass->blittable) {
6948 mono_mb_emit_ldarg (mb, argnum);
6950 mono_mb_emit_ldloc (mb, conv_arg);
6951 mono_mb_emit_byte (mb, CEE_CONV_I);
6952 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6953 mono_mb_emit_byte (mb, CEE_ADD);
6955 mono_mb_emit_ldloc (mb, conv_arg);
6956 mono_mb_emit_byte (mb, CEE_LDLEN);
6957 mono_mb_emit_icon (mb, esize);
6958 mono_mb_emit_byte (mb, CEE_MUL);
6959 mono_mb_emit_byte (mb, CEE_PREFIX1);
6960 mono_mb_emit_byte (mb, CEE_CPBLK);
6964 /* Emit marshalling loop */
6965 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6966 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6967 mono_mb_emit_stloc (mb, index_var);
6968 label2 = mono_mb_get_label (mb);
6969 mono_mb_emit_ldloc (mb, index_var);
6970 mono_mb_emit_ldloc (mb, conv_arg);
6971 mono_mb_emit_byte (mb, CEE_LDLEN);
6972 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6974 /* Emit marshalling code */
6977 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6980 mono_mb_emit_ldloc (mb, dest_ptr);
6983 mono_mb_emit_ldloc (mb, conv_arg);
6984 mono_mb_emit_ldloc (mb, index_var);
6986 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6988 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6989 mono_mb_emit_byte (mb, stind_op);
6992 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6993 mono_mb_emit_exception_marshal_directive (mb, msg);
6997 mono_mb_emit_add_to_local (mb, index_var, 1);
6998 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7000 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7002 mono_mb_patch_branch (mb, label1);
7003 mono_mb_patch_branch (mb, label3);
7007 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7009 guint32 label1, label2, label3;
7010 int index_var, src, dest, esize;
7011 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
7012 gboolean is_string = FALSE;
7014 g_assert (!t->byref);
7016 eklass = klass->element_class;
7018 mono_marshal_load_type_info (eklass);
7020 if (eklass == mono_defaults.string_class) {
7022 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7025 g_assert_not_reached ();
7029 esize = sizeof (gpointer);
7030 else if (eklass == mono_defaults.char_class)
7031 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7033 esize = mono_class_native_size (eklass, NULL);
7035 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7036 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7038 mono_mb_emit_stloc (mb, src);
7039 mono_mb_emit_ldloc (mb, src);
7040 mono_mb_emit_stloc (mb, 3);
7042 /* Check for null */
7043 mono_mb_emit_ldloc (mb, src);
7044 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7046 /* Allocate native array */
7047 mono_mb_emit_icon (mb, esize);
7048 mono_mb_emit_ldloc (mb, src);
7049 mono_mb_emit_byte (mb, CEE_LDLEN);
7051 if (eklass == mono_defaults.string_class) {
7052 /* Make the array bigger for the terminating null */
7053 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7054 mono_mb_emit_byte (mb, CEE_ADD);
7056 mono_mb_emit_byte (mb, CEE_MUL);
7057 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
7058 mono_mb_emit_stloc (mb, dest);
7059 mono_mb_emit_ldloc (mb, dest);
7060 mono_mb_emit_stloc (mb, 3);
7062 /* Emit marshalling loop */
7063 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7064 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7065 mono_mb_emit_stloc (mb, index_var);
7066 label2 = mono_mb_get_label (mb);
7067 mono_mb_emit_ldloc (mb, index_var);
7068 mono_mb_emit_ldloc (mb, src);
7069 mono_mb_emit_byte (mb, CEE_LDLEN);
7070 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7072 /* Emit marshalling code */
7075 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7078 mono_mb_emit_ldloc (mb, dest);
7081 mono_mb_emit_ldloc (mb, src);
7082 mono_mb_emit_ldloc (mb, index_var);
7084 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7086 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7087 mono_mb_emit_byte (mb, stind_op);
7090 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7091 mono_mb_emit_exception_marshal_directive (mb, msg);
7095 mono_mb_emit_add_to_local (mb, index_var, 1);
7096 mono_mb_emit_add_to_local (mb, dest, esize);
7098 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7100 mono_mb_patch_branch (mb, label3);
7101 mono_mb_patch_branch (mb, label1);
7105 g_assert_not_reached ();
7112 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
7115 return &mono_defaults.int32_class->byval_arg;
7117 switch (spec->native) {
7118 case MONO_NATIVE_I1:
7119 case MONO_NATIVE_U1:
7120 return &mono_defaults.byte_class->byval_arg;
7121 case MONO_NATIVE_VARIANTBOOL:
7122 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
7123 return &mono_defaults.int16_class->byval_arg;
7124 case MONO_NATIVE_BOOLEAN:
7125 return &mono_defaults.int32_class->byval_arg;
7127 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7128 return &mono_defaults.int32_class->byval_arg;
7134 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
7136 MonoClass* conv_arg_class = mono_defaults.int32_class;
7138 switch (spec->native) {
7139 case MONO_NATIVE_I1:
7140 case MONO_NATIVE_U1:
7141 conv_arg_class = mono_defaults.byte_class;
7142 if (ldop) *ldop = CEE_LDIND_I1;
7144 case MONO_NATIVE_VARIANTBOOL:
7145 conv_arg_class = mono_defaults.int16_class;
7146 if (ldop) *ldop = CEE_LDIND_I2;
7148 case MONO_NATIVE_BOOLEAN:
7151 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7154 return conv_arg_class;
7158 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7159 MonoMarshalSpec *spec,
7160 int conv_arg, MonoType **conv_arg_type,
7161 MarshalAction action)
7165 case MARSHAL_ACTION_CONV_IN:
7167 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7169 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7172 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7173 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7175 *conv_arg_type = &conv_arg_class->this_arg;
7177 *conv_arg_type = &conv_arg_class->byval_arg;
7183 MonoMethodBuilder *mb = m->mb;
7186 case MARSHAL_ACTION_CONV_IN: {
7187 MonoType *local_type;
7189 guint8 ldc_op = CEE_LDC_I4_1;
7191 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7193 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7195 *conv_arg_type = local_type;
7196 conv_arg = mono_mb_add_local (mb, local_type);
7198 mono_mb_emit_ldarg (mb, argnum);
7200 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7201 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7202 mono_mb_emit_byte (mb, ldc_op);
7203 mono_mb_emit_stloc (mb, conv_arg);
7204 mono_mb_patch_branch (mb, label_false);
7209 case MARSHAL_ACTION_CONV_OUT:
7211 int label_false, label_end;
7215 mono_mb_emit_ldarg (mb, argnum);
7216 mono_mb_emit_ldloc (mb, conv_arg);
7218 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7219 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7221 label_end = mono_mb_emit_branch (mb, CEE_BR);
7222 mono_mb_patch_branch (mb, label_false);
7223 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7224 mono_mb_patch_branch (mb, label_end);
7226 mono_mb_emit_byte (mb, CEE_STIND_I1);
7230 case MARSHAL_ACTION_PUSH:
7232 mono_mb_emit_ldloc_addr (mb, conv_arg);
7234 mono_mb_emit_ldloc (mb, conv_arg);
7236 mono_mb_emit_ldarg (mb, argnum);
7239 case MARSHAL_ACTION_CONV_RESULT:
7240 /* maybe we need to make sure that it fits within 8 bits */
7241 mono_mb_emit_stloc (mb, 3);
7244 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7245 MonoClass* conv_arg_class = mono_defaults.int32_class;
7246 guint8 ldop = CEE_LDIND_I4;
7247 int label_null, label_false;
7249 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7250 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7253 *conv_arg_type = &conv_arg_class->this_arg;
7255 *conv_arg_type = &conv_arg_class->byval_arg;
7258 mono_mb_emit_ldarg (mb, argnum);
7262 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7263 mono_mb_emit_ldarg (mb, argnum);
7264 mono_mb_emit_byte (mb, ldop);
7268 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7269 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7270 mono_mb_emit_stloc (mb, conv_arg);
7271 mono_mb_patch_branch (mb, label_false);
7274 mono_mb_patch_branch (mb, label_null);
7278 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7279 guint8 stop = CEE_STIND_I4;
7280 guint8 ldc_op = CEE_LDC_I4_1;
7281 int label_null,label_false, label_end;;
7286 switch (spec->native) {
7287 case MONO_NATIVE_I1:
7288 case MONO_NATIVE_U1:
7289 stop = CEE_STIND_I1;
7291 case MONO_NATIVE_VARIANTBOOL:
7292 stop = CEE_STIND_I2;
7293 ldc_op = CEE_LDC_I4_M1;
7301 mono_mb_emit_ldarg (mb, argnum);
7302 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7304 mono_mb_emit_ldarg (mb, argnum);
7305 mono_mb_emit_ldloc (mb, conv_arg);
7307 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7308 mono_mb_emit_byte (mb, ldc_op);
7309 label_end = mono_mb_emit_branch (mb, CEE_BR);
7311 mono_mb_patch_branch (mb, label_false);
7312 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7313 mono_mb_patch_branch (mb, label_end);
7315 mono_mb_emit_byte (mb, stop);
7316 mono_mb_patch_branch (mb, label_null);
7321 g_assert_not_reached ();
7328 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7329 MonoMarshalSpec *spec, int conv_arg,
7330 MonoType **conv_arg_type, MarshalAction action)
7333 MonoMethodBuilder *mb = m->mb;
7336 case MARSHAL_ACTION_CONV_IN:
7337 /* MS seems to allow this in some cases, ie. bxc #158 */
7339 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7340 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7341 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7346 case MARSHAL_ACTION_PUSH:
7347 mono_mb_emit_ldarg (mb, argnum);
7350 case MARSHAL_ACTION_CONV_RESULT:
7351 /* no conversions necessary */
7352 mono_mb_emit_stloc (mb, 3);
7363 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7364 MonoMarshalSpec *spec, int conv_arg,
7365 MonoType **conv_arg_type, MarshalAction action)
7368 MonoMethodBuilder *mb = m->mb;
7371 case MARSHAL_ACTION_PUSH:
7372 /* fixme: dont know how to marshal that. We cant simply
7373 * convert it to a one byte UTF8 character, because an
7374 * unicode character may need more that one byte in UTF8 */
7375 mono_mb_emit_ldarg (mb, argnum);
7378 case MARSHAL_ACTION_CONV_RESULT:
7379 /* fixme: we need conversions here */
7380 mono_mb_emit_stloc (mb, 3);
7391 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7392 MonoMarshalSpec *spec, int conv_arg,
7393 MonoType **conv_arg_type, MarshalAction action)
7396 MonoMethodBuilder *mb = m->mb;
7399 case MARSHAL_ACTION_PUSH:
7400 mono_mb_emit_ldarg (mb, argnum);
7403 case MARSHAL_ACTION_CONV_RESULT:
7404 /* no conversions necessary */
7405 mono_mb_emit_stloc (mb, 3);
7416 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7417 MonoMarshalSpec *spec, int conv_arg,
7418 MonoType **conv_arg_type, MarshalAction action)
7420 /* Ensure that we have marshalling info for this param */
7421 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7423 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7424 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7426 if (spec && spec->native == MONO_NATIVE_ASANY)
7427 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7430 case MONO_TYPE_VALUETYPE:
7431 if (t->data.klass == mono_defaults.handleref_class)
7432 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7434 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7435 case MONO_TYPE_STRING:
7436 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7437 case MONO_TYPE_CLASS:
7438 case MONO_TYPE_OBJECT:
7439 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7440 if (spec && spec->native == MONO_NATIVE_STRUCT)
7441 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7444 #if !defined(DISABLE_COM)
7445 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7446 spec->native == MONO_NATIVE_IDISPATCH ||
7447 spec->native == MONO_NATIVE_INTERFACE))
7448 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7449 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7450 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7451 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7452 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7455 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7456 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7457 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7459 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7460 case MONO_TYPE_ARRAY:
7461 case MONO_TYPE_SZARRAY:
7462 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7463 case MONO_TYPE_BOOLEAN:
7464 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7466 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7467 case MONO_TYPE_CHAR:
7468 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7481 case MONO_TYPE_FNPTR:
7482 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7483 case MONO_TYPE_GENERICINST:
7484 if (mono_type_generic_inst_is_valuetype (t))
7485 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7487 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7495 * mono_marshal_emit_native_wrapper:
7496 * @image: the image to use for looking up custom marshallers
7497 * @sig: The signature of the native function
7498 * @piinfo: Marshalling information
7499 * @mspecs: Marshalling information
7500 * @aot: whenever the created method will be compiled by the AOT compiler
7501 * @method: if non-NULL, the pinvoke method to call
7502 * @check_exceptions: Whenever to check for pending exceptions after the native call
7503 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7505 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7508 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)
7510 EmitMarshalContext m;
7511 MonoMethodSignature *csig;
7513 int i, argnum, *tmp_locals;
7514 int type, param_shift = 0;
7515 int coop_gc_stack_dummy, coop_gc_var;
7517 memset (&m, 0, sizeof (m));
7522 /* we copy the signature, so that we can set pinvoke to 0 */
7524 /* The function address is passed as the first argument */
7525 g_assert (!sig->hasthis);
7528 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7536 /* we allocate local for use with emit_struct_conv() */
7537 /* allocate local 0 (pointer) src_ptr */
7538 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7539 /* allocate local 1 (pointer) dst_ptr */
7540 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7541 /* allocate local 2 (boolean) delete_old */
7542 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7544 /* delete_old = FALSE */
7545 mono_mb_emit_icon (mb, 0);
7546 mono_mb_emit_stloc (mb, 2);
7548 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7549 /* allocate local 3 to store the return value */
7550 mono_mb_add_local (mb, sig->ret);
7553 if (mono_threads_is_coop_enabled ()) {
7554 /* local 4, dummy local used to get a stack address for suspend funcs */
7555 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7556 /* local 5, the local to be used when calling the suspend funcs */
7557 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7561 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7563 * ret = method (...);
7565 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7572 if (MONO_TYPE_ISSTRUCT (sig->ret))
7573 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7575 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7576 /* Return type custom marshaling */
7578 * Since we can't determine the return type of the unmanaged function,
7579 * we assume it returns a pointer, and pass that pointer to
7580 * MarshalNativeToManaged.
7582 csig->ret = &mono_defaults.int_class->byval_arg;
7585 /* we first do all conversions */
7586 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7587 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7589 for (i = 0; i < sig->param_count; i ++) {
7590 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7593 // In coop mode need to register blocking state during native call
7594 if (mono_threads_is_coop_enabled ()) {
7595 // Perform an extra, early lookup of the function address, so any exceptions
7596 // potentially resulting from the lookup occur before entering blocking mode.
7597 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7598 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7599 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7600 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7603 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7604 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7605 mono_mb_emit_stloc (mb, coop_gc_var);
7608 /* push all arguments */
7611 mono_mb_emit_byte (mb, CEE_LDARG_0);
7613 for (i = 0; i < sig->param_count; i++) {
7614 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7617 /* call the native method */
7619 mono_mb_emit_byte (mb, CEE_LDARG_0);
7620 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7621 mono_mb_emit_byte (mb, CEE_LDIND_I);
7622 mono_mb_emit_calli (mb, csig);
7623 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7625 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7627 g_assert_not_reached ();
7631 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7632 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7633 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7634 mono_mb_emit_calli (mb, csig);
7636 mono_mb_emit_native_call (mb, csig, func);
7640 /* Set LastError if needed */
7641 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7644 static MonoMethodSignature *get_last_error_sig = NULL;
7645 if (!get_last_error_sig) {
7646 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7647 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7648 get_last_error_sig->pinvoke = 1;
7652 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7653 * clobber its value.
7655 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7656 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7658 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7659 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7660 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7663 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7667 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7668 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7669 mono_class_init (klass);
7670 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
7671 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7672 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7673 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7674 mono_mb_emit_stloc (mb, m.vtaddr_var);
7678 /* Unblock before converting the result, since that can involve calls into the runtime */
7679 if (mono_threads_is_coop_enabled ()) {
7680 mono_mb_emit_ldloc (mb, coop_gc_var);
7681 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7682 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7685 /* convert the result */
7686 if (!sig->ret->byref) {
7687 MonoMarshalSpec *spec = mspecs [0];
7688 type = sig->ret->type;
7690 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7691 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7695 case MONO_TYPE_VOID:
7697 case MONO_TYPE_VALUETYPE:
7698 klass = sig->ret->data.klass;
7699 if (klass->enumtype) {
7700 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7703 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7717 case MONO_TYPE_FNPTR:
7718 case MONO_TYPE_STRING:
7719 case MONO_TYPE_CLASS:
7720 case MONO_TYPE_OBJECT:
7721 case MONO_TYPE_BOOLEAN:
7722 case MONO_TYPE_ARRAY:
7723 case MONO_TYPE_SZARRAY:
7724 case MONO_TYPE_CHAR:
7726 case MONO_TYPE_GENERICINST:
7727 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7729 case MONO_TYPE_TYPEDBYREF:
7731 g_warning ("return type 0x%02x unknown", sig->ret->type);
7732 g_assert_not_reached ();
7736 mono_mb_emit_stloc (mb, 3);
7740 * Need to call this after converting the result since MONO_VTADDR needs
7741 * to be adjacent to the call instruction.
7743 if (check_exceptions)
7744 emit_thread_interrupt_checkpoint (mb);
7746 /* we need to convert byref arguments back and free string arrays */
7747 for (i = 0; i < sig->param_count; i++) {
7748 MonoType *t = sig->params [i];
7749 MonoMarshalSpec *spec = mspecs [i + 1];
7751 argnum = i + param_shift;
7753 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7754 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7759 case MONO_TYPE_STRING:
7760 case MONO_TYPE_VALUETYPE:
7761 case MONO_TYPE_CLASS:
7762 case MONO_TYPE_OBJECT:
7763 case MONO_TYPE_SZARRAY:
7764 case MONO_TYPE_BOOLEAN:
7765 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7772 if (!MONO_TYPE_IS_VOID(sig->ret))
7773 mono_mb_emit_ldloc (mb, 3);
7775 mono_mb_emit_byte (mb, CEE_RET);
7777 #endif /* DISABLE_JIT */
7780 * mono_marshal_get_native_wrapper:
7781 * @method: The MonoMethod to wrap.
7782 * @check_exceptions: Whenever to check for pending exceptions
7784 * generates IL code for the pinvoke wrapper (the generated method
7785 * calls the unmanaged code in piinfo->addr)
7788 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7790 MonoMethodSignature *sig, *csig;
7791 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7792 MonoMethodBuilder *mb;
7793 MonoMarshalSpec **mspecs;
7796 gboolean pinvoke = FALSE;
7799 const char *exc_class = "MissingMethodException";
7800 const char *exc_arg = NULL;
7803 g_assert (method != NULL);
7804 g_assert (mono_method_signature (method)->pinvoke);
7806 GHashTable **cache_ptr;
7809 if (check_exceptions)
7810 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7812 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7814 if (check_exceptions)
7815 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7817 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7820 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7822 if ((res = mono_marshal_find_in_cache (cache, method)))
7825 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7826 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7830 return mono_cominterop_get_native_wrapper (method);
7832 g_assert_not_reached ();
7836 sig = mono_method_signature (method);
7838 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7839 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7842 if (!piinfo->addr) {
7844 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7845 exc_arg = "Method contains unsupported native code";
7847 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7849 piinfo->addr = mono_lookup_internal_call (method);
7853 /* hack - redirect certain string constructors to CreateString */
7854 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7855 g_assert (!pinvoke);
7856 g_assert (method->string_ctor);
7857 g_assert (sig->hasthis);
7859 /* CreateString returns a value */
7860 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7861 csig->ret = &mono_defaults.string_class->byval_arg;
7865 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7866 if (!strcmp ("CreateString", res->name) &&
7867 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7870 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7871 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7873 /* create a wrapper to preserve .ctor in stack trace */
7874 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7877 mono_mb_emit_byte (mb, CEE_LDARG_0);
7878 for (i = 1; i <= csig->param_count; i++)
7879 mono_mb_emit_ldarg (mb, i);
7880 mono_mb_emit_managed_call (mb, res, NULL);
7881 mono_mb_emit_byte (mb, CEE_RET);
7884 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7885 info->d.string_ctor.method = method;
7887 /* use native_wrapper_cache because internal calls are looked up there */
7888 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7889 csig->param_count + 1, info, NULL);
7896 /* exception will be thrown */
7897 piinfo->addr = NULL;
7898 g_warning ("cannot find CreateString for .ctor");
7901 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7903 mb->method->save_lmf = 1;
7906 * In AOT mode and embedding scenarios, it is possible that the icall is not
7907 * registered in the runtime doing the AOT compilation.
7909 if (!piinfo->addr && !aot) {
7911 mono_mb_emit_exception (mb, exc_class, exc_arg);
7913 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7914 info->d.managed_to_native.method = method;
7916 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7918 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7919 csig->param_count + 16, info, NULL);
7925 /* internal calls: we simply push all arguments and call the method (no conversions) */
7926 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7928 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7930 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7932 //printf ("%s\n", mono_method_full_name (method, 1));
7934 /* hack - string constructors returns a value */
7935 if (method->string_ctor)
7936 csig->ret = &mono_defaults.string_class->byval_arg;
7940 MonoClass *handle_stack_mark_class;
7941 MonoClass *error_class;
7942 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
7943 MonoMethodSignature *call_sig = csig;
7944 gboolean uses_handles = FALSE;
7945 gboolean has_outarg_handles = FALSE;
7946 int *outarg_handle = NULL;
7947 (void) mono_lookup_internal_call_full (method, &uses_handles);
7950 /* If it uses handles and MonoError, it had better check exceptions */
7951 g_assert (!uses_handles || check_exceptions);
7954 MonoMethodSignature *ret;
7956 /* Add a MonoError argument */
7957 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
7958 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
7960 ret->param_count = csig->param_count + 1;
7961 ret->ret = csig->ret;
7962 for (int i = 0; i < csig->param_count; ++i) {
7963 if (MONO_TYPE_IS_REFERENCE (csig->params[i])) {
7964 ret->params [i] = mono_class_get_byref_type (mono_class_from_mono_type(csig->params[i]));
7965 if (mono_signature_param_is_out (csig, i)) {
7966 has_outarg_handles = TRUE;
7969 ret->params [i] = csig->params [i];
7971 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
7972 ret->pinvoke = csig->pinvoke;
7978 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
7979 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
7981 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
7982 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
7983 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
7985 if (has_outarg_handles) {
7986 outarg_handle = g_new0 (int, sig->param_count);
7988 /* add a local var to hold the handles for each out arg */
7989 for (int i = 0; i < sig->param_count; ++i) {
7990 if (mono_signature_param_is_out (sig, i) && MONO_TYPE_IS_REFERENCE (sig->params[i])) {
7991 outarg_handle[i] = mono_mb_add_local (mb, sig->params[i]);
7992 } else if (outarg_handle != NULL)
7993 outarg_handle[i] = -1;
8002 * Add a null check since public icalls can be called with 'call' which
8003 * does no such check.
8005 mono_mb_emit_byte (mb, CEE_LDARG_0);
8006 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8007 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8008 mono_mb_patch_branch (mb, pos);
8012 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8013 mono_mb_emit_ldloc_addr (mb, error_var);
8014 mono_mb_emit_icall (mb, mono_icall_start);
8015 mono_mb_emit_stloc (mb, thread_info_var);
8018 mono_mb_emit_byte (mb, CEE_LDARG_0);
8019 mono_mb_emit_icall (mb, mono_handle_new);
8021 for (i = 0; i < sig->param_count; i++) {
8022 /* load each argument. object reference arguments get wrapped in handles */
8024 if (!MONO_TYPE_IS_REFERENCE (sig->params [i])) {
8025 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8027 if (outarg_handle && outarg_handle[i] != -1) {
8028 /* handleI = argI = mono_handle_new (NULL) */
8029 mono_mb_emit_byte (mb, CEE_LDNULL);
8030 mono_mb_emit_icall (mb, mono_handle_new);
8032 mono_mb_emit_byte (mb, CEE_DUP);
8034 mono_mb_emit_stloc (mb, outarg_handle[i]);
8036 /* argI = mono_handle_new (argI_raw) */
8037 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8038 mono_mb_emit_icall (mb, mono_handle_new);
8042 mono_mb_emit_ldloc_addr (mb, error_var);
8045 mono_mb_emit_byte (mb, CEE_LDARG_0);
8046 for (i = 0; i < sig->param_count; i++)
8047 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8051 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8052 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8053 mono_mb_emit_calli (mb, call_sig);
8055 g_assert (piinfo->addr);
8056 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
8060 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
8061 // if (ret != NULL_HANDLE) {
8062 // ret = MONO_HANDLE_RAW(ret)
8064 mono_mb_emit_byte (mb, CEE_DUP);
8065 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8066 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8067 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8068 mono_mb_patch_branch (mb, pos);
8070 if (outarg_handle != NULL) {
8071 for (i = 0; i < sig->param_count; i++) {
8072 if (outarg_handle[i] != -1) {
8073 /* *argI_raw = MONO_HANDLE_RAW (handleI) */
8076 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8078 mono_mb_emit_ldloc (mb, outarg_handle[i]);
8079 /* MONO_HANDLE_RAW(handleI) */
8080 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8081 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8082 /* *argI_raw = MONO_HANDLE_RAW(handleI) */
8083 mono_mb_emit_byte (mb, CEE_STIND_REF);
8086 g_free (outarg_handle);
8087 outarg_handle = NULL;
8089 mono_mb_emit_ldloc (mb, thread_info_var);
8090 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8091 mono_mb_emit_ldloc_addr (mb, error_var);
8092 mono_mb_emit_icall (mb, mono_icall_end);
8095 if (check_exceptions)
8096 emit_thread_interrupt_checkpoint (mb);
8097 mono_mb_emit_byte (mb, CEE_RET);
8099 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8100 info->d.managed_to_native.method = method;
8102 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
8104 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8113 g_assert (piinfo->addr);
8116 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8117 mono_method_get_marshal_info (method, mspecs);
8119 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
8121 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
8122 info->d.managed_to_native.method = method;
8124 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8126 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8131 for (i = sig->param_count; i >= 0; i--)
8133 mono_metadata_free_marshal_spec (mspecs [i]);
8137 /* mono_method_print_code (res); */
8143 * mono_marshal_get_native_func_wrapper:
8144 * @image: The image to use for memory allocation and for looking up custom marshallers.
8145 * @sig: The signature of the function
8146 * @func: The native function to wrap
8148 * Returns a wrapper method around native functions, similar to the pinvoke
8152 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8153 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8155 MonoMethodSignature *csig;
8157 SignaturePointerPair key, *new_key;
8158 MonoMethodBuilder *mb;
8167 // Generic types are not safe to place in MonoImage caches.
8168 g_assert (!sig->is_inflated);
8170 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
8171 if ((res = mono_marshal_find_in_cache (cache, &key)))
8174 name = g_strdup_printf ("wrapper_native_%p", func);
8175 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8176 mb->method->save_lmf = 1;
8179 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8182 csig = mono_metadata_signature_dup_full (image, sig);
8185 new_key = g_new (SignaturePointerPair,1);
8186 new_key->sig = csig;
8187 new_key->pointer = func;
8189 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
8195 mono_marshal_set_wrapper_info (res, NULL);
8201 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8205 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8207 MonoMethodSignature *sig, *csig;
8208 MonoMethodBuilder *mb;
8213 MonoMethodPInvoke mpiinfo;
8214 MonoMethodPInvoke *piinfo = &mpiinfo;
8215 MonoMarshalSpec **mspecs;
8216 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8217 MonoImage *image = invoke->klass->image;
8220 // FIXME: include UnmanagedFunctionPointerAttribute info
8223 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8225 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8227 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8230 memset (&mpiinfo, 0, sizeof (mpiinfo));
8231 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8233 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8234 mono_method_get_marshal_info (invoke, mspecs);
8235 /* Freed below so don't alloc from mempool */
8236 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8239 name = g_strdup_printf ("wrapper_aot_native");
8240 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8241 mb->method->save_lmf = 1;
8244 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8247 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8248 info->d.managed_to_native.method = invoke;
8250 g_assert (!sig->hasthis);
8251 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8253 res = mono_mb_create_and_cache_full (cache, invoke,
8254 mb, csig, csig->param_count + 16,
8258 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8260 mono_metadata_free_marshal_spec (mspecs [i]);
8268 * mono_marshal_emit_managed_wrapper:
8270 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8271 * the delegate which wraps the managed method to be called. For closed delegates,
8272 * it could have fewer parameters than the method it wraps.
8273 * THIS_LOC is the memory location where the target of the delegate is stored.
8276 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8279 MonoMethodSignature *sig, *csig;
8285 /* we first do all conversions */
8286 for (i = 0; i < sig->param_count; i ++) {
8287 MonoType *t = sig->params [i];
8290 case MONO_TYPE_OBJECT:
8291 case MONO_TYPE_CLASS:
8292 case MONO_TYPE_VALUETYPE:
8293 case MONO_TYPE_ARRAY:
8294 case MONO_TYPE_SZARRAY:
8295 case MONO_TYPE_STRING:
8296 case MONO_TYPE_BOOLEAN:
8297 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8301 if (!sig->ret->byref) {
8302 switch (sig->ret->type) {
8303 case MONO_TYPE_STRING:
8304 csig->ret = &mono_defaults.int_class->byval_arg;
8311 MonoMethodSignature *sig, *csig;
8312 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8313 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8314 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8315 gboolean closed = FALSE;
8320 /* allocate local 0 (pointer) src_ptr */
8321 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8322 /* allocate local 1 (pointer) dst_ptr */
8323 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8324 /* allocate local 2 (boolean) delete_old */
8325 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8327 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8328 /* Closed delegate */
8329 g_assert (sig->param_count == invoke_sig->param_count + 1);
8331 /* Use a new signature without the first argument */
8332 sig = mono_metadata_signature_dup (sig);
8333 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8334 sig->param_count --;
8337 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8338 /* allocate local 3 to store the return value */
8339 mono_mb_add_local (mb, sig->ret);
8342 if (MONO_TYPE_ISSTRUCT (sig->ret))
8343 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8345 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8346 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8348 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8349 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8354 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8355 * mono_threads_attach_coop ();
8359 * ret = method (...);
8360 * } catch (Exception e) {
8361 * ex = mono_gchandle_new (e, false);
8363 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8364 * mono_threads_detach_coop ();
8367 * mono_marshal_ftnptr_eh_callback (ex);
8373 clauses = g_new0 (MonoExceptionClause, 2);
8375 clause_catch = &clauses [0];
8376 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8377 clause_catch->data.catch_class = mono_defaults.exception_class;
8379 clause_finally = &clauses [1];
8380 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8382 mono_mb_emit_icon (mb, 0);
8383 mono_mb_emit_stloc (mb, 2);
8385 mono_mb_emit_icon (mb, -1);
8386 mono_mb_emit_byte (mb, CEE_CONV_U4);
8387 mono_mb_emit_stloc (mb, ex_local);
8390 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8392 if (!mono_threads_is_coop_enabled ()) {
8393 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8394 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8396 /* mono_threads_attach_coop (); */
8397 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8398 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8399 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8400 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8401 mono_mb_emit_stloc (mb, attach_cookie_local);
8404 /* <interrupt check> */
8405 emit_thread_interrupt_checkpoint (mb);
8407 /* we first do all conversions */
8408 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8409 for (i = 0; i < sig->param_count; i ++) {
8410 MonoType *t = sig->params [i];
8413 case MONO_TYPE_OBJECT:
8414 case MONO_TYPE_CLASS:
8415 case MONO_TYPE_VALUETYPE:
8416 case MONO_TYPE_ARRAY:
8417 case MONO_TYPE_SZARRAY:
8418 case MONO_TYPE_STRING:
8419 case MONO_TYPE_BOOLEAN:
8420 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8430 if (target_handle) {
8431 mono_mb_emit_icon (mb, (gint32)target_handle);
8432 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8435 g_assert_not_reached ();
8437 } else if (closed) {
8438 mono_mb_emit_icon (mb, (gint32)target_handle);
8439 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8442 for (i = 0; i < sig->param_count; i++) {
8443 MonoType *t = sig->params [i];
8445 if (tmp_locals [i]) {
8447 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8449 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8452 mono_mb_emit_ldarg (mb, i);
8455 /* ret = method (...) */
8456 mono_mb_emit_managed_call (mb, method, NULL);
8458 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8459 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8460 mono_class_init (klass);
8461 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
8462 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8463 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8464 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8465 mono_mb_emit_stloc (mb, m->vtaddr_var);
8469 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8470 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8471 } else if (!sig->ret->byref) {
8472 switch (sig->ret->type) {
8473 case MONO_TYPE_VOID:
8475 case MONO_TYPE_BOOLEAN:
8478 case MONO_TYPE_CHAR:
8490 case MONO_TYPE_OBJECT:
8491 mono_mb_emit_stloc (mb, 3);
8493 case MONO_TYPE_STRING:
8494 csig->ret = &mono_defaults.int_class->byval_arg;
8495 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8497 case MONO_TYPE_VALUETYPE:
8498 case MONO_TYPE_CLASS:
8499 case MONO_TYPE_SZARRAY:
8500 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8503 g_warning ("return type 0x%02x unknown", sig->ret->type);
8504 g_assert_not_reached ();
8507 mono_mb_emit_stloc (mb, 3);
8510 /* Convert byref arguments back */
8511 for (i = 0; i < sig->param_count; i ++) {
8512 MonoType *t = sig->params [i];
8513 MonoMarshalSpec *spec = mspecs [i + 1];
8515 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8516 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8518 else if (t->byref) {
8520 case MONO_TYPE_CLASS:
8521 case MONO_TYPE_VALUETYPE:
8522 case MONO_TYPE_OBJECT:
8523 case MONO_TYPE_STRING:
8524 case MONO_TYPE_BOOLEAN:
8525 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8531 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8532 /* The [Out] information is encoded in the delegate signature */
8534 case MONO_TYPE_SZARRAY:
8535 case MONO_TYPE_CLASS:
8536 case MONO_TYPE_VALUETYPE:
8537 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8540 g_assert_not_reached ();
8545 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8549 /* catch (Exception e) { */
8550 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8551 clause_catch->handler_offset = mono_mb_get_label (mb);
8553 mono_mb_emit_stloc (mb, e_local);
8555 /* ex = mono_gchandle_new (e, false); */
8556 mono_mb_emit_ldloc (mb, e_local);
8557 mono_mb_emit_icon (mb, 0);
8558 mono_mb_emit_icall (mb, mono_gchandle_new);
8559 mono_mb_emit_stloc (mb, ex_local);
8561 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8564 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8567 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8568 clause_finally->handler_offset = mono_mb_get_label (mb);
8570 if (!mono_threads_is_coop_enabled ()) {
8571 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8572 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8574 /* mono_threads_detach_coop (); */
8575 mono_mb_emit_ldloc (mb, attach_cookie_local);
8576 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8577 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8581 mono_mb_emit_ldloc (mb, ex_local);
8582 mono_mb_emit_icon (mb, -1);
8583 mono_mb_emit_byte (mb, CEE_CONV_U4);
8584 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8586 /* mono_marshal_ftnptr_eh_callback (ex) */
8587 mono_mb_emit_ldloc (mb, ex_local);
8588 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8591 mono_mb_patch_branch (mb, ex_m1_pos);
8593 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8595 /* } [endfinally] */
8596 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8598 mono_mb_patch_branch (mb, leave_try_pos);
8599 mono_mb_patch_branch (mb, leave_catch_pos);
8602 if (m->retobj_var) {
8603 mono_mb_emit_ldloc (mb, m->retobj_var);
8604 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8605 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8608 if (!MONO_TYPE_IS_VOID(sig->ret))
8609 mono_mb_emit_ldloc (mb, 3);
8610 mono_mb_emit_byte (mb, CEE_RET);
8613 mono_mb_set_clauses (mb, 2, clauses);
8621 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8623 MonoMethodSignature *sig;
8628 * Under windows, delegates passed to native code must use the STDCALL
8629 * calling convention.
8631 csig->call_convention = MONO_CALL_STDCALL;
8634 sig = mono_method_signature (method);
8636 /* Change default calling convention if needed */
8637 /* Why is this a modopt ? */
8638 if (sig->ret && sig->ret->num_mods) {
8639 for (i = 0; i < sig->ret->num_mods; ++i) {
8641 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8642 g_assert (mono_error_ok (&error));
8643 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8644 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8645 csig->call_convention = MONO_CALL_C;
8646 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8647 csig->call_convention = MONO_CALL_STDCALL;
8648 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8649 csig->call_convention = MONO_CALL_FASTCALL;
8650 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8651 csig->call_convention = MONO_CALL_THISCALL;
8658 * generates IL code to call managed methods from unmanaged code
8659 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8662 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8665 MonoMethodSignature *sig, *csig, *invoke_sig;
8666 MonoMethodBuilder *mb;
8667 MonoMethod *res, *invoke;
8668 MonoMarshalSpec **mspecs;
8669 MonoMethodPInvoke piinfo;
8672 EmitMarshalContext m;
8674 g_assert (method != NULL);
8675 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8678 * FIXME: Should cache the method+delegate type pair, since the same method
8679 * could be called with different delegates, thus different marshalling
8682 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8684 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8687 invoke = mono_get_delegate_invoke (delegate_klass);
8688 invoke_sig = mono_method_signature (invoke);
8690 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8691 mono_method_get_marshal_info (invoke, mspecs);
8693 sig = mono_method_signature (method);
8695 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8697 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8698 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8700 /* we copy the signature, so that we can modify it */
8702 /* Need to free this later */
8703 csig = mono_metadata_signature_dup (invoke_sig);
8705 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8709 memset (&m, 0, sizeof (m));
8715 m.image = method->klass->image;
8717 mono_marshal_set_callconv_from_modopt (invoke, csig);
8719 /* The attribute is only available in Net 2.0 */
8720 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8721 MonoCustomAttrInfo *cinfo;
8722 MonoCustomAttrEntry *attr;
8725 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8726 * contents of the attribute without constructing it, as that might not be
8727 * possible when running in cross-compiling mode.
8729 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8730 mono_error_assert_ok (&error);
8733 for (i = 0; i < cinfo->num_attrs; ++i) {
8734 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8735 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8736 attr = &cinfo->attrs [i];
8742 MonoArray *typed_args, *named_args;
8743 CattrNamedArg *arginfo;
8747 MonoBoolean set_last_error = 0;
8750 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8751 g_assert (mono_error_ok (&error));
8752 g_assert (mono_array_length (typed_args) == 1);
8755 o = mono_array_get (typed_args, MonoObject*, 0);
8756 call_conv = *(gint32*)mono_object_unbox (o);
8759 for (i = 0; i < mono_array_length (named_args); ++i) {
8760 CattrNamedArg *narg = &arginfo [i];
8762 o = mono_array_get (named_args, MonoObject*, i);
8764 g_assert (narg->field);
8765 if (!strcmp (narg->field->name, "CharSet")) {
8766 charset = *(gint32*)mono_object_unbox (o);
8767 } else if (!strcmp (narg->field->name, "SetLastError")) {
8768 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8769 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8770 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8771 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8772 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8774 g_assert_not_reached ();
8780 memset (&piinfo, 0, sizeof (piinfo));
8782 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8784 csig->call_convention = call_conv - 1;
8787 if (cinfo && !cinfo->cached)
8788 mono_custom_attrs_free (cinfo);
8791 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8793 if (!target_handle) {
8796 // FIXME: Associate it with the method+delegate_klass pair
8797 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8798 info->d.native_to_managed.method = method;
8799 info->d.native_to_managed.klass = delegate_klass;
8801 res = mono_mb_create_and_cache_full (cache, method,
8802 mb, csig, sig->param_count + 16,
8808 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8812 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8814 mono_metadata_free_marshal_spec (mspecs [i]);
8817 /* mono_method_print_code (res); */
8823 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8827 MonoMethodSignature *sig;
8828 MonoMethodBuilder *mb;
8833 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8835 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8838 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8839 MonoMethodSignature *csig;
8840 MonoMarshalSpec **mspecs;
8841 EmitMarshalContext m;
8843 sig = mono_method_signature (method);
8844 g_assert (!sig->hasthis);
8846 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8847 mono_method_get_marshal_info (method, mspecs);
8849 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8850 csig = mono_metadata_signature_dup_full (image, sig);
8854 memset (&m, 0, sizeof (m));
8862 mono_marshal_set_callconv_from_modopt (method, csig);
8864 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8866 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8871 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8874 for (i = sig->param_count; i >= 0; i--)
8876 mono_metadata_free_marshal_spec (mspecs [i]);
8879 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8880 mono_error_assert_ok (&error);
8881 return compiled_ptr;
8884 sig = mono_method_signature (method);
8885 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8887 param_count = sig->param_count + sig->hasthis;
8889 for (i = 0; i < param_count; i++)
8890 mono_mb_emit_ldarg (mb, i);
8892 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8893 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8895 mono_mb_emit_op (mb, CEE_CALL, method);
8896 mono_mb_emit_byte (mb, CEE_RET);
8901 method = mono_mb_create (mb, sig, param_count, NULL);
8904 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8905 mono_error_assert_ok (&error);
8906 return compiled_ptr;
8912 * The code directly following this is the cache hit, value positive branch
8914 * This function takes a new method builder with 0 locals and adds two locals
8915 * to create multiple out-branches and the fall through state of having the object
8916 * on the stack after a cache miss
8919 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8920 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8921 MonoMethodBuilder *mb)
8925 /* allocate local 0 (pointer) obj_vtable */
8926 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8927 /* allocate local 1 (pointer) cached_vtable */
8928 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8931 mono_mb_emit_ldarg (mb, obj_arg_position);
8932 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8934 /*obj_vtable = obj->vtable;*/
8935 mono_mb_emit_ldarg (mb, obj_arg_position);
8936 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8937 mono_mb_emit_byte (mb, CEE_LDIND_I);
8938 mono_mb_emit_stloc (mb, 0);
8940 /* cached_vtable = *cache*/
8941 mono_mb_emit_ldarg (mb, cache_arg_position);
8942 mono_mb_emit_byte (mb, CEE_LDIND_I);
8943 mono_mb_emit_stloc (mb, 1);
8945 mono_mb_emit_ldloc (mb, 1);
8946 mono_mb_emit_byte (mb, CEE_LDC_I4);
8947 mono_mb_emit_i4 (mb, ~0x1);
8948 mono_mb_emit_byte (mb, CEE_CONV_I);
8949 mono_mb_emit_byte (mb, CEE_AND);
8950 mono_mb_emit_ldloc (mb, 0);
8951 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8952 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8954 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8955 mono_mb_emit_ldloc (mb, 1);
8956 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8957 mono_mb_emit_byte (mb, CEE_CONV_U);
8958 mono_mb_emit_byte (mb, CEE_AND);
8959 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8960 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8963 mono_mb_patch_branch (mb, cache_miss_pos);
8966 mono_mb_emit_ldarg (mb, obj_arg_position);
8967 mono_mb_emit_ldarg (mb, class_arg_position);
8968 mono_mb_emit_ldarg (mb, cache_arg_position);
8969 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8972 #endif /* DISABLE_JIT */
8975 * This does the equivalent of mono_object_castclass_with_cache.
8978 mono_marshal_get_castclass_with_cache (void)
8980 static MonoMethod *cached;
8982 MonoMethodBuilder *mb;
8983 MonoMethodSignature *sig;
8984 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8987 const int obj_arg_position = 0;
8988 const int class_arg_position = 1;
8989 const int cache_arg_position = 2;
8994 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8995 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8996 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8997 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8998 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8999 sig->ret = &mono_defaults.object_class->byval_arg;
9003 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9004 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9005 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9008 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9009 mono_mb_emit_ldarg (mb, obj_arg_position);
9010 mono_mb_emit_byte (mb, CEE_RET);
9013 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9014 mono_mb_patch_branch (mb, invalid_cast_pos);
9015 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9018 mono_mb_patch_branch (mb, return_null_pos);
9019 mono_mb_emit_byte (mb, CEE_LDNULL);
9020 mono_mb_emit_byte (mb, CEE_RET);
9021 #endif /* DISABLE_JIT */
9023 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9024 res = mono_mb_create (mb, sig, 8, info);
9027 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9028 mono_free_method (res);
9029 mono_metadata_free_method_signature (sig);
9036 /* this is an icall */
9038 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
9041 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
9042 if (mono_error_set_pending_exception (&error))
9045 if (mono_object_is_transparent_proxy (obj))
9048 uintptr_t cache_update = (uintptr_t)obj->vtable;
9050 cache_update = cache_update | 0x1;
9052 *cache = cache_update;
9058 * This does the equivalent of mono_object_isinst_with_cache.
9061 mono_marshal_get_isinst_with_cache (void)
9063 static MonoMethod *cached;
9065 MonoMethodBuilder *mb;
9066 MonoMethodSignature *sig;
9067 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
9070 const int obj_arg_position = 0;
9071 const int class_arg_position = 1;
9072 const int cache_arg_position = 2;
9077 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9078 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9080 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9082 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9084 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9085 sig->ret = &mono_defaults.object_class->byval_arg;
9089 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9090 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9091 // Return the object gotten via the slow path.
9092 mono_mb_emit_byte (mb, CEE_RET);
9095 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9096 mono_mb_patch_branch (mb, return_null_pos);
9097 mono_mb_emit_byte (mb, CEE_LDNULL);
9098 mono_mb_emit_byte (mb, CEE_RET);
9101 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9102 mono_mb_emit_ldarg (mb, obj_arg_position);
9103 mono_mb_emit_byte (mb, CEE_RET);
9106 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9107 res = mono_mb_create (mb, sig, 8, info);
9110 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9111 mono_free_method (res);
9112 mono_metadata_free_method_signature (sig);
9120 * mono_marshal_get_struct_to_ptr:
9123 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9126 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9128 MonoMethodBuilder *mb;
9129 static MonoMethod *stoptr = NULL;
9133 g_assert (klass != NULL);
9135 mono_marshal_load_type_info (klass);
9137 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9138 if (marshal_info->str_to_ptr)
9139 return marshal_info->str_to_ptr;
9142 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9145 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9148 if (klass->blittable) {
9149 mono_mb_emit_byte (mb, CEE_LDARG_1);
9150 mono_mb_emit_byte (mb, CEE_LDARG_0);
9151 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9152 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9153 mono_mb_emit_byte (mb, CEE_PREFIX1);
9154 mono_mb_emit_byte (mb, CEE_CPBLK);
9157 /* allocate local 0 (pointer) src_ptr */
9158 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9159 /* allocate local 1 (pointer) dst_ptr */
9160 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9161 /* allocate local 2 (boolean) delete_old */
9162 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9163 mono_mb_emit_byte (mb, CEE_LDARG_2);
9164 mono_mb_emit_stloc (mb, 2);
9166 /* initialize src_ptr to point to the start of object data */
9167 mono_mb_emit_byte (mb, CEE_LDARG_0);
9168 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9169 mono_mb_emit_stloc (mb, 0);
9171 /* initialize dst_ptr */
9172 mono_mb_emit_byte (mb, CEE_LDARG_1);
9173 mono_mb_emit_stloc (mb, 1);
9175 emit_struct_conv (mb, klass, FALSE);
9178 mono_mb_emit_byte (mb, CEE_RET);
9180 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9181 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9184 mono_marshal_lock ();
9185 if (!marshal_info->str_to_ptr)
9186 marshal_info->str_to_ptr = res;
9188 res = marshal_info->str_to_ptr;
9189 mono_marshal_unlock ();
9194 * mono_marshal_get_ptr_to_struct:
9197 * generates IL code for PtrToStructure (IntPtr src, object structure)
9200 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9202 MonoMethodBuilder *mb;
9203 static MonoMethodSignature *ptostr = NULL;
9207 g_assert (klass != NULL);
9209 mono_marshal_load_type_info (klass);
9211 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9212 if (marshal_info->ptr_to_str)
9213 return marshal_info->ptr_to_str;
9216 MonoMethodSignature *sig;
9218 /* Create the signature corresponding to
9219 static void PtrToStructure (IntPtr ptr, object structure);
9220 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9221 sig = mono_create_icall_signature ("void ptr object");
9222 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9224 mono_memory_barrier ();
9228 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9231 if (klass->blittable) {
9232 mono_mb_emit_byte (mb, CEE_LDARG_1);
9233 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9234 mono_mb_emit_byte (mb, CEE_LDARG_0);
9235 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9236 mono_mb_emit_byte (mb, CEE_PREFIX1);
9237 mono_mb_emit_byte (mb, CEE_CPBLK);
9240 /* allocate local 0 (pointer) src_ptr */
9241 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9242 /* allocate local 1 (pointer) dst_ptr */
9243 mono_mb_add_local (mb, &klass->this_arg);
9245 /* initialize src_ptr to point to the start of object data */
9246 mono_mb_emit_byte (mb, CEE_LDARG_0);
9247 mono_mb_emit_stloc (mb, 0);
9249 /* initialize dst_ptr */
9250 mono_mb_emit_byte (mb, CEE_LDARG_1);
9251 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9252 mono_mb_emit_stloc (mb, 1);
9254 emit_struct_conv (mb, klass, TRUE);
9257 mono_mb_emit_byte (mb, CEE_RET);
9259 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9260 res = mono_mb_create (mb, ptostr, 0, info);
9263 mono_marshal_lock ();
9264 if (!marshal_info->ptr_to_str)
9265 marshal_info->ptr_to_str = res;
9267 res = marshal_info->ptr_to_str;
9268 mono_marshal_unlock ();
9273 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9274 * This is used to avoid infinite recursion since it is hard to determine where to
9275 * replace a method with its synchronized wrapper, and where not.
9276 * The runtime should execute METHOD instead of the wrapper.
9279 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9281 MonoMethodBuilder *mb;
9283 MonoMethodSignature *sig;
9285 MonoGenericContext *ctx = NULL;
9286 MonoGenericContainer *container = NULL;
9288 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9289 ctx = &((MonoMethodInflated*)method)->context;
9290 method = ((MonoMethodInflated*)method)->declaring;
9291 container = mono_method_get_generic_container (method);
9293 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9294 g_assert (container);
9297 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9299 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9300 mono_mb_emit_byte (mb, CEE_RET);
9302 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9304 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9305 info->d.synchronized_inner.method = method;
9306 res = mono_mb_create (mb, sig, 0, info);
9310 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9311 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9317 * generates IL code for the synchronized wrapper: the generated method
9318 * calls METHOD while locking 'this' or the parent type.
9321 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9323 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9324 MonoMethodSignature *sig;
9325 MonoExceptionClause *clause;
9326 MonoMethodBuilder *mb;
9330 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9331 MonoGenericContext *ctx = NULL;
9332 MonoMethod *orig_method = NULL;
9333 MonoGenericContainer *container = NULL;
9337 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9340 /* FIXME: Support generic methods too */
9341 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9342 orig_method = method;
9343 ctx = &((MonoMethodInflated*)method)->context;
9344 method = ((MonoMethodInflated*)method)->declaring;
9345 container = mono_method_get_generic_container (method);
9347 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9348 g_assert (container);
9355 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9356 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9360 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9361 if ((res = mono_marshal_find_in_cache (cache, method)))
9365 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9368 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9370 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9371 info->d.synchronized.method = method;
9374 mb->skip_visibility = 1;
9376 if (!MONO_TYPE_IS_VOID (sig->ret))
9377 ret_local = mono_mb_add_local (mb, sig->ret);
9380 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9381 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9382 mono_class_set_type_load_failure (method->klass, "");
9384 /* This will throw the type load exception when the wrapper is compiled */
9385 mono_mb_emit_byte (mb, CEE_LDNULL);
9386 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9387 mono_mb_emit_byte (mb, CEE_POP);
9389 if (!MONO_TYPE_IS_VOID (sig->ret))
9390 mono_mb_emit_ldloc (mb, ret_local);
9391 mono_mb_emit_byte (mb, CEE_RET);
9394 res = mono_mb_create_and_cache_full (cache, method,
9395 mb, sig, sig->param_count + 16, info, NULL);
9403 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9404 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9406 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9407 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9410 mono_marshal_lock ();
9412 if (!enter_method) {
9413 MonoMethodDesc *desc;
9415 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9416 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9417 g_assert (enter_method);
9418 mono_method_desc_free (desc);
9420 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9421 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9422 g_assert (exit_method);
9423 mono_method_desc_free (desc);
9425 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9426 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9427 g_assert (gettypefromhandle_method);
9428 mono_method_desc_free (desc);
9431 mono_marshal_unlock ();
9434 /* Push this or the type object */
9435 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9436 /* We have special handling for this in the JIT */
9437 int index = mono_mb_add_data (mb, method->klass);
9438 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9439 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9440 mono_mb_emit_i4 (mb, index);
9442 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9445 mono_mb_emit_ldarg (mb, 0);
9446 mono_mb_emit_stloc (mb, this_local);
9448 /* Call Monitor::Enter() */
9449 mono_mb_emit_ldloc (mb, this_local);
9450 mono_mb_emit_ldloc_addr (mb, taken_local);
9451 mono_mb_emit_managed_call (mb, enter_method, NULL);
9453 clause->try_offset = mono_mb_get_label (mb);
9455 /* Call the method */
9457 mono_mb_emit_ldarg (mb, 0);
9458 for (i = 0; i < sig->param_count; i++)
9459 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9463 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9464 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9466 mono_mb_emit_managed_call (mb, method, NULL);
9469 if (!MONO_TYPE_IS_VOID (sig->ret))
9470 mono_mb_emit_stloc (mb, ret_local);
9472 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9474 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9475 clause->handler_offset = mono_mb_get_label (mb);
9477 /* Call Monitor::Exit() if needed */
9478 mono_mb_emit_ldloc (mb, taken_local);
9479 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9480 mono_mb_emit_ldloc (mb, this_local);
9481 mono_mb_emit_managed_call (mb, exit_method, NULL);
9482 mono_mb_patch_branch (mb, pos2);
9483 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9485 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9487 mono_mb_patch_branch (mb, pos);
9488 if (!MONO_TYPE_IS_VOID (sig->ret))
9489 mono_mb_emit_ldloc (mb, ret_local);
9490 mono_mb_emit_byte (mb, CEE_RET);
9492 mono_mb_set_clauses (mb, 1, clause);
9497 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9498 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9500 res = mono_mb_create_and_cache_full (cache, method,
9501 mb, sig, sig->param_count + 16, info, NULL);
9510 * the returned method calls 'method' unboxing the this argument
9513 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9515 MonoMethodSignature *sig = mono_method_signature (method);
9517 MonoMethodBuilder *mb;
9522 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9524 if ((res = mono_marshal_find_in_cache (cache, method)))
9527 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9529 g_assert (sig->hasthis);
9532 mono_mb_emit_ldarg (mb, 0);
9533 mono_mb_emit_icon (mb, sizeof (MonoObject));
9534 mono_mb_emit_byte (mb, CEE_ADD);
9535 for (i = 0; i < sig->param_count; ++i)
9536 mono_mb_emit_ldarg (mb, i + 1);
9537 mono_mb_emit_managed_call (mb, method, NULL);
9538 mono_mb_emit_byte (mb, CEE_RET);
9541 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9542 info->d.unbox.method = method;
9544 res = mono_mb_create_and_cache_full (cache, method,
9545 mb, sig, sig->param_count + 16, info, NULL);
9548 /* mono_method_print_code (res); */
9554 STELEMREF_OBJECT, /*no check at all*/
9555 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9556 STELEMREF_CLASS, /*only the klass->parents check*/
9557 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9558 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9559 STELEMREF_KIND_COUNT
9562 static const char *strelemref_wrapper_name[] = {
9563 "object", "sealed_class", "class", "interface", "complex"
9567 is_monomorphic_array (MonoClass *klass)
9569 MonoClass *element_class;
9570 if (klass->rank != 1)
9573 element_class = klass->element_class;
9574 return mono_class_is_sealed (element_class) || element_class->valuetype;
9578 get_virtual_stelemref_kind (MonoClass *element_class)
9580 if (element_class == mono_defaults.object_class)
9581 return STELEMREF_OBJECT;
9582 if (is_monomorphic_array (element_class))
9583 return STELEMREF_SEALED_CLASS;
9584 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9585 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9586 #ifdef COMPRESSED_INTERFACE_BITMAP
9587 return STELEMREF_COMPLEX;
9589 return STELEMREF_INTERFACE;
9591 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9592 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9593 return STELEMREF_COMPLEX;
9594 if (mono_class_is_sealed (element_class))
9595 return STELEMREF_SEALED_CLASS;
9596 return STELEMREF_CLASS;
9602 load_array_element_address (MonoMethodBuilder *mb)
9604 mono_mb_emit_ldarg (mb, 0);
9605 mono_mb_emit_ldarg (mb, 1);
9606 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9610 load_array_class (MonoMethodBuilder *mb, int aklass)
9612 mono_mb_emit_ldarg (mb, 0);
9613 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9614 mono_mb_emit_byte (mb, CEE_LDIND_I);
9615 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9616 mono_mb_emit_byte (mb, CEE_LDIND_I);
9617 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9618 mono_mb_emit_byte (mb, CEE_LDIND_I);
9619 mono_mb_emit_stloc (mb, aklass);
9623 load_value_class (MonoMethodBuilder *mb, int vklass)
9625 mono_mb_emit_ldarg (mb, 2);
9626 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9627 mono_mb_emit_byte (mb, CEE_LDIND_I);
9628 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9629 mono_mb_emit_byte (mb, CEE_LDIND_I);
9630 mono_mb_emit_stloc (mb, vklass);
9636 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9638 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9639 printf ("slow vstore of %s\n", name);
9646 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9647 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9648 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9649 * - Add a case for arrays of arrays.
9652 get_virtual_stelemref_wrapper (int kind)
9654 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9655 static MonoMethodSignature *signature;
9656 MonoMethodBuilder *mb;
9659 const char *param_names [16];
9660 guint32 b1, b2, b3, b4;
9661 int aklass, vklass, vtable, uiid;
9662 int array_slot_addr;
9665 if (cached_methods [kind])
9666 return cached_methods [kind];
9668 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9669 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9673 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9675 /* void this::stelemref (size_t idx, void* value) */
9676 sig->ret = &mono_defaults.void_class->byval_arg;
9677 sig->hasthis = TRUE;
9678 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9679 sig->params [1] = &mono_defaults.object_class->byval_arg;
9684 param_names [0] = "index";
9685 param_names [1] = "value";
9686 mono_mb_set_param_names (mb, param_names);
9688 /*For now simply call plain old stelemref*/
9690 case STELEMREF_OBJECT:
9691 /* ldelema (implicit bound check) */
9692 load_array_element_address (mb);
9694 mono_mb_emit_ldarg (mb, 2);
9695 mono_mb_emit_byte (mb, CEE_STIND_REF);
9696 mono_mb_emit_byte (mb, CEE_RET);
9699 case STELEMREF_COMPLEX:
9701 <ldelema (bound check)>
9704 if (!mono_object_isinst (value, aklass))
9708 *array_slot_addr = value;
9711 throw new ArrayTypeMismatchException ();
9714 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9715 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9719 /*Use this to debug/record stores that are going thru the slow path*/
9720 MonoMethodSignature *csig;
9721 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9722 csig->ret = &mono_defaults.void_class->byval_arg;
9723 csig->params [0] = &mono_defaults.object_class->byval_arg;
9724 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9725 csig->params [2] = &mono_defaults.object_class->byval_arg;
9726 mono_mb_emit_ldarg (mb, 0);
9727 mono_mb_emit_ldarg (mb, 1);
9728 mono_mb_emit_ldarg (mb, 2);
9729 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9733 /* ldelema (implicit bound check) */
9734 load_array_element_address (mb);
9735 mono_mb_emit_stloc (mb, array_slot_addr);
9737 /* if (!value) goto do_store */
9738 mono_mb_emit_ldarg (mb, 2);
9739 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9741 /* aklass = array->vtable->klass->element_class */
9742 load_array_class (mb, aklass);
9744 /*if (mono_object_isinst (value, aklass)) */
9745 mono_mb_emit_ldarg (mb, 2);
9746 mono_mb_emit_ldloc (mb, aklass);
9747 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9748 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9751 mono_mb_patch_branch (mb, b1);
9752 mono_mb_emit_ldloc (mb, array_slot_addr);
9753 mono_mb_emit_ldarg (mb, 2);
9754 mono_mb_emit_byte (mb, CEE_STIND_REF);
9755 mono_mb_emit_byte (mb, CEE_RET);
9758 mono_mb_patch_branch (mb, b2);
9760 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9763 case STELEMREF_SEALED_CLASS:
9765 <ldelema (bound check)>
9769 aklass = array->vtable->klass->element_class;
9770 vklass = value->vtable->klass;
9772 if (vklass != aklass)
9776 *array_slot_addr = value;
9779 throw new ArrayTypeMismatchException ();
9781 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9782 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9783 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9786 /* ldelema (implicit bound check) */
9787 load_array_element_address (mb);
9788 mono_mb_emit_stloc (mb, array_slot_addr);
9790 /* if (!value) goto do_store */
9791 mono_mb_emit_ldarg (mb, 2);
9792 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9794 /* aklass = array->vtable->klass->element_class */
9795 load_array_class (mb, aklass);
9797 /* vklass = value->vtable->klass */
9798 load_value_class (mb, vklass);
9800 /*if (vklass != aklass) goto do_exception; */
9801 mono_mb_emit_ldloc (mb, aklass);
9802 mono_mb_emit_ldloc (mb, vklass);
9803 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9806 mono_mb_patch_branch (mb, b1);
9807 mono_mb_emit_ldloc (mb, array_slot_addr);
9808 mono_mb_emit_ldarg (mb, 2);
9809 mono_mb_emit_byte (mb, CEE_STIND_REF);
9810 mono_mb_emit_byte (mb, CEE_RET);
9813 mono_mb_patch_branch (mb, b2);
9814 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9817 case STELEMREF_CLASS:
9820 <ldelema (bound check)>
9824 aklass = array->vtable->klass->element_class;
9825 vklass = value->vtable->klass;
9827 if (vklass->idepth < aklass->idepth)
9830 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9834 *array_slot_addr = value;
9838 throw new ArrayTypeMismatchException ();
9840 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9841 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9842 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
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);
9855 /* vklass = value->vtable->klass */
9856 load_value_class (mb, vklass);
9858 /*if (mono_object_isinst (value, aklass)) */
9859 mono_mb_emit_ldarg (mb, 2);
9860 mono_mb_emit_ldloc (mb, aklass);
9861 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9862 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9864 /* if (vklass->idepth < aklass->idepth) goto failue */
9865 mono_mb_emit_ldloc (mb, vklass);
9866 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9867 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9869 mono_mb_emit_ldloc (mb, aklass);
9870 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9871 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9873 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9875 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9876 mono_mb_emit_ldloc (mb, vklass);
9877 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9878 mono_mb_emit_byte (mb, CEE_LDIND_I);
9880 mono_mb_emit_ldloc (mb, aklass);
9881 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9882 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9883 mono_mb_emit_icon (mb, 1);
9884 mono_mb_emit_byte (mb, CEE_SUB);
9885 mono_mb_emit_icon (mb, sizeof (void*));
9886 mono_mb_emit_byte (mb, CEE_MUL);
9887 mono_mb_emit_byte (mb, CEE_ADD);
9888 mono_mb_emit_byte (mb, CEE_LDIND_I);
9890 mono_mb_emit_ldloc (mb, aklass);
9891 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9894 mono_mb_patch_branch (mb, b1);
9895 mono_mb_emit_ldloc (mb, array_slot_addr);
9896 mono_mb_emit_ldarg (mb, 2);
9897 mono_mb_emit_byte (mb, CEE_STIND_REF);
9898 mono_mb_emit_byte (mb, CEE_RET);
9901 mono_mb_patch_branch (mb, b2);
9902 mono_mb_patch_branch (mb, b3);
9903 mono_mb_patch_branch (mb, b4);
9905 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9908 case STELEMREF_INTERFACE:
9915 klass = array->obj.vtable->klass->element_class;
9917 uiid = klass->interface_id;
9918 if (uiid > vt->max_interface_id)
9920 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9923 mono_array_setref (array, index, value);
9926 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9928 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9929 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9930 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9931 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9933 /* ldelema (implicit bound check) */
9934 load_array_element_address (mb);
9935 mono_mb_emit_stloc (mb, array_slot_addr);
9937 /* if (!value) goto do_store */
9938 mono_mb_emit_ldarg (mb, 2);
9939 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9941 /* klass = array->vtable->klass->element_class */
9942 load_array_class (mb, aklass);
9944 /* vt = value->vtable */
9945 mono_mb_emit_ldarg (mb, 2);
9946 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9947 mono_mb_emit_byte (mb, CEE_LDIND_I);
9948 mono_mb_emit_stloc (mb, vtable);
9950 /* uiid = klass->interface_id; */
9951 mono_mb_emit_ldloc (mb, aklass);
9952 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9953 mono_mb_emit_byte (mb, CEE_LDIND_U4);
9954 mono_mb_emit_stloc (mb, uiid);
9956 /*if (uiid > vt->max_interface_id)*/
9957 mono_mb_emit_ldloc (mb, uiid);
9958 mono_mb_emit_ldloc (mb, vtable);
9959 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9960 mono_mb_emit_byte (mb, CEE_LDIND_U4);
9961 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9963 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9965 /*vt->interface_bitmap*/
9966 mono_mb_emit_ldloc (mb, vtable);
9967 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9968 mono_mb_emit_byte (mb, CEE_LDIND_I);
9971 mono_mb_emit_ldloc (mb, uiid);
9972 mono_mb_emit_icon (mb, 3);
9973 mono_mb_emit_byte (mb, CEE_SHR_UN);
9975 /*vt->interface_bitmap [(uiid) >> 3]*/
9976 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9977 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9979 /*(1 << ((uiid)&7)))*/
9980 mono_mb_emit_icon (mb, 1);
9981 mono_mb_emit_ldloc (mb, uiid);
9982 mono_mb_emit_icon (mb, 7);
9983 mono_mb_emit_byte (mb, CEE_AND);
9984 mono_mb_emit_byte (mb, CEE_SHL);
9986 /*bitwise and the whole thing*/
9987 mono_mb_emit_byte (mb, CEE_AND);
9988 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9991 mono_mb_patch_branch (mb, b1);
9992 mono_mb_emit_ldloc (mb, array_slot_addr);
9993 mono_mb_emit_ldarg (mb, 2);
9994 mono_mb_emit_byte (mb, CEE_STIND_REF);
9995 mono_mb_emit_byte (mb, CEE_RET);
9998 mono_mb_patch_branch (mb, b2);
9999 mono_mb_patch_branch (mb, b3);
10000 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10004 mono_mb_emit_ldarg (mb, 0);
10005 mono_mb_emit_ldarg (mb, 1);
10006 mono_mb_emit_ldarg (mb, 2);
10007 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10008 mono_mb_emit_byte (mb, CEE_RET);
10011 #endif /* DISABLE_JIT */
10012 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10013 info->d.virtual_stelemref.kind = kind;
10014 res = mono_mb_create (mb, signature, 4, info);
10015 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10017 mono_marshal_lock ();
10018 if (!cached_methods [kind]) {
10019 cached_methods [kind] = res;
10020 mono_marshal_unlock ();
10022 mono_marshal_unlock ();
10023 mono_free_method (res);
10027 return cached_methods [kind];
10031 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10035 g_assert (array_class->rank == 1);
10036 kind = get_virtual_stelemref_kind (array_class->element_class);
10038 return get_virtual_stelemref_wrapper (kind);
10042 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10047 *nwrappers = STELEMREF_KIND_COUNT;
10048 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10049 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10050 res [i] = get_virtual_stelemref_wrapper (i);
10055 mono_marshal_get_stelemref (void)
10057 static MonoMethod* ret = NULL;
10058 MonoMethodSignature *sig;
10059 MonoMethodBuilder *mb;
10062 guint32 b1, b2, b3, b4;
10064 int aklass, vklass;
10065 int array_slot_addr;
10070 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10073 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10075 /* void stelemref (void* array, int idx, void* value) */
10076 sig->ret = &mono_defaults.void_class->byval_arg;
10077 sig->params [0] = &mono_defaults.object_class->byval_arg;
10078 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10079 sig->params [2] = &mono_defaults.object_class->byval_arg;
10081 #ifndef DISABLE_JIT
10082 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10083 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10084 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10088 <ldelema (bound check)>
10092 aklass = array->vtable->klass->element_class;
10093 vklass = value->vtable->klass;
10095 if (vklass->idepth < aklass->idepth)
10098 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10102 *array_slot_addr = value;
10106 if (mono_object_isinst (value, aklass))
10109 throw new ArrayTypeMismatchException ();
10112 /* ldelema (implicit bound check) */
10113 mono_mb_emit_ldarg (mb, 0);
10114 mono_mb_emit_ldarg (mb, 1);
10115 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10116 mono_mb_emit_stloc (mb, array_slot_addr);
10118 /* if (!value) goto do_store */
10119 mono_mb_emit_ldarg (mb, 2);
10120 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10122 /* aklass = array->vtable->klass->element_class */
10123 mono_mb_emit_ldarg (mb, 0);
10124 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10125 mono_mb_emit_byte (mb, CEE_LDIND_I);
10126 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10127 mono_mb_emit_byte (mb, CEE_LDIND_I);
10128 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10129 mono_mb_emit_byte (mb, CEE_LDIND_I);
10130 mono_mb_emit_stloc (mb, aklass);
10132 /* vklass = value->vtable->klass */
10133 mono_mb_emit_ldarg (mb, 2);
10134 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10135 mono_mb_emit_byte (mb, CEE_LDIND_I);
10136 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10137 mono_mb_emit_byte (mb, CEE_LDIND_I);
10138 mono_mb_emit_stloc (mb, vklass);
10140 /* if (vklass->idepth < aklass->idepth) goto failue */
10141 mono_mb_emit_ldloc (mb, vklass);
10142 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10143 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10145 mono_mb_emit_ldloc (mb, aklass);
10146 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10147 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10149 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10151 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10152 mono_mb_emit_ldloc (mb, vklass);
10153 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10154 mono_mb_emit_byte (mb, CEE_LDIND_I);
10156 mono_mb_emit_ldloc (mb, aklass);
10157 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10158 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10159 mono_mb_emit_icon (mb, 1);
10160 mono_mb_emit_byte (mb, CEE_SUB);
10161 mono_mb_emit_icon (mb, sizeof (void*));
10162 mono_mb_emit_byte (mb, CEE_MUL);
10163 mono_mb_emit_byte (mb, CEE_ADD);
10164 mono_mb_emit_byte (mb, CEE_LDIND_I);
10166 mono_mb_emit_ldloc (mb, aklass);
10168 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10170 copy_pos = mono_mb_get_label (mb);
10172 mono_mb_patch_branch (mb, b1);
10173 mono_mb_emit_ldloc (mb, array_slot_addr);
10174 mono_mb_emit_ldarg (mb, 2);
10175 mono_mb_emit_byte (mb, CEE_STIND_REF);
10177 mono_mb_emit_byte (mb, CEE_RET);
10180 mono_mb_patch_branch (mb, b2);
10181 mono_mb_patch_branch (mb, b3);
10183 mono_mb_emit_ldarg (mb, 2);
10184 mono_mb_emit_ldloc (mb, aklass);
10185 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10187 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10188 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10189 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10191 mono_mb_emit_byte (mb, CEE_RET);
10193 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10194 ret = mono_mb_create (mb, sig, 4, info);
10201 * mono_marshal_get_gsharedvt_in_wrapper:
10203 * This wrapper handles calls from normal code to gsharedvt code.
10206 mono_marshal_get_gsharedvt_in_wrapper (void)
10208 static MonoMethod* ret = NULL;
10209 MonoMethodSignature *sig;
10210 MonoMethodBuilder *mb;
10216 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10218 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10219 sig->ret = &mono_defaults.void_class->byval_arg;
10221 #ifndef DISABLE_JIT
10223 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10225 mono_mb_emit_byte (mb, CEE_RET);
10227 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10228 ret = mono_mb_create (mb, sig, 4, info);
10235 * mono_marshal_get_gsharedvt_out_wrapper:
10237 * This wrapper handles calls from gsharedvt code to normal code.
10240 mono_marshal_get_gsharedvt_out_wrapper (void)
10242 static MonoMethod* ret = NULL;
10243 MonoMethodSignature *sig;
10244 MonoMethodBuilder *mb;
10250 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10252 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10253 sig->ret = &mono_defaults.void_class->byval_arg;
10255 #ifndef DISABLE_JIT
10257 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10259 mono_mb_emit_byte (mb, CEE_RET);
10261 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10262 ret = mono_mb_create (mb, sig, 4, info);
10271 MonoMethod *method;
10274 /* LOCKING: vars accessed under the marshal lock */
10275 static ArrayElemAddr *elem_addr_cache = NULL;
10276 static int elem_addr_cache_size = 0;
10277 static int elem_addr_cache_next = 0;
10280 * mono_marshal_get_array_address:
10281 * @rank: rank of the array type
10282 * @elem_size: size in bytes of an element of an array.
10284 * Returns a MonoMethod that implements the code to get the address
10285 * of an element in a multi-dimenasional array of @rank dimensions.
10286 * The returned method takes an array as the first argument and then
10287 * @rank indexes for the @rank dimensions.
10288 * If ELEM_SIZE is 0, read the array size from the array object.
10291 mono_marshal_get_array_address (int rank, int elem_size)
10294 MonoMethodBuilder *mb;
10295 MonoMethodSignature *sig;
10298 int i, bounds, ind, realidx;
10299 int branch_pos, *branch_positions;
10303 mono_marshal_lock ();
10304 for (i = 0; i < elem_addr_cache_next; ++i) {
10305 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10306 ret = elem_addr_cache [i].method;
10310 mono_marshal_unlock ();
10314 branch_positions = g_new0 (int, rank);
10316 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10318 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10319 sig->ret = &mono_defaults.int_class->byval_arg;
10320 sig->params [0] = &mono_defaults.object_class->byval_arg;
10321 for (i = 0; i < rank; ++i) {
10322 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10325 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10326 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10329 #ifndef DISABLE_JIT
10330 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10331 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10332 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10334 /* bounds = array->bounds; */
10335 mono_mb_emit_ldarg (mb, 0);
10336 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10337 mono_mb_emit_byte (mb, CEE_LDIND_I);
10338 mono_mb_emit_stloc (mb, bounds);
10340 /* ind is the overall element index, realidx is the partial index in a single dimension */
10341 /* ind = idx0 - bounds [0].lower_bound */
10342 mono_mb_emit_ldarg (mb, 1);
10343 mono_mb_emit_ldloc (mb, bounds);
10344 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10345 mono_mb_emit_byte (mb, CEE_ADD);
10346 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10347 mono_mb_emit_byte (mb, CEE_SUB);
10348 mono_mb_emit_stloc (mb, ind);
10349 /* if (ind >= bounds [0].length) goto exeception; */
10350 mono_mb_emit_ldloc (mb, ind);
10351 mono_mb_emit_ldloc (mb, bounds);
10352 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10353 mono_mb_emit_byte (mb, CEE_ADD);
10354 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10355 /* note that we use unsigned comparison */
10356 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10358 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10359 * We could also decide to ignore the passed elem_size and get it
10360 * from the array object, to reduce the number of methods we generate:
10361 * the additional cost is 3 memory loads and a non-immediate mul.
10363 for (i = 1; i < rank; ++i) {
10364 /* realidx = idxi - bounds [i].lower_bound */
10365 mono_mb_emit_ldarg (mb, 1 + i);
10366 mono_mb_emit_ldloc (mb, bounds);
10367 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10368 mono_mb_emit_byte (mb, CEE_ADD);
10369 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10370 mono_mb_emit_byte (mb, CEE_SUB);
10371 mono_mb_emit_stloc (mb, realidx);
10372 /* if (realidx >= bounds [i].length) goto exeception; */
10373 mono_mb_emit_ldloc (mb, realidx);
10374 mono_mb_emit_ldloc (mb, bounds);
10375 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10376 mono_mb_emit_byte (mb, CEE_ADD);
10377 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10378 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10379 /* ind = ind * bounds [i].length + realidx */
10380 mono_mb_emit_ldloc (mb, ind);
10381 mono_mb_emit_ldloc (mb, bounds);
10382 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10383 mono_mb_emit_byte (mb, CEE_ADD);
10384 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10385 mono_mb_emit_byte (mb, CEE_MUL);
10386 mono_mb_emit_ldloc (mb, realidx);
10387 mono_mb_emit_byte (mb, CEE_ADD);
10388 mono_mb_emit_stloc (mb, ind);
10391 /* return array->vector + ind * element_size */
10392 mono_mb_emit_ldarg (mb, 0);
10393 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10394 mono_mb_emit_ldloc (mb, ind);
10396 mono_mb_emit_icon (mb, elem_size);
10398 /* Load arr->vtable->klass->sizes.element_class */
10399 mono_mb_emit_ldarg (mb, 0);
10400 mono_mb_emit_byte (mb, CEE_CONV_I);
10401 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10402 mono_mb_emit_byte (mb, CEE_ADD);
10403 mono_mb_emit_byte (mb, CEE_LDIND_I);
10404 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10405 mono_mb_emit_byte (mb, CEE_ADD);
10406 mono_mb_emit_byte (mb, CEE_LDIND_I);
10407 /* sizes is an union, so this reads sizes.element_size */
10408 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10409 mono_mb_emit_byte (mb, CEE_ADD);
10410 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10412 mono_mb_emit_byte (mb, CEE_MUL);
10413 mono_mb_emit_byte (mb, CEE_ADD);
10414 mono_mb_emit_byte (mb, CEE_RET);
10416 /* patch the branches to get here and throw */
10417 for (i = 1; i < rank; ++i) {
10418 mono_mb_patch_branch (mb, branch_positions [i]);
10420 mono_mb_patch_branch (mb, branch_pos);
10421 /* throw exception */
10422 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10424 g_free (branch_positions);
10425 #endif /* DISABLE_JIT */
10427 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10428 info->d.element_addr.rank = rank;
10429 info->d.element_addr.elem_size = elem_size;
10430 ret = mono_mb_create (mb, sig, 4, info);
10433 /* cache the result */
10435 mono_marshal_lock ();
10436 for (i = 0; i < elem_addr_cache_next; ++i) {
10437 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10438 /* FIXME: free ret */
10439 ret = elem_addr_cache [i].method;
10445 if (elem_addr_cache_next >= elem_addr_cache_size) {
10446 int new_size = elem_addr_cache_size + 4;
10447 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10448 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10449 g_free (elem_addr_cache);
10450 elem_addr_cache = new_array;
10451 elem_addr_cache_size = new_size;
10453 elem_addr_cache [elem_addr_cache_next].rank = rank;
10454 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10455 elem_addr_cache [elem_addr_cache_next].method = ret;
10456 elem_addr_cache_next ++;
10458 mono_marshal_unlock ();
10463 * mono_marshal_get_array_accessor_wrapper:
10465 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10468 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10470 MonoMethodSignature *sig;
10471 MonoMethodBuilder *mb;
10475 MonoGenericContext *ctx = NULL;
10476 MonoMethod *orig_method = NULL;
10477 MonoGenericContainer *container = NULL;
10481 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10482 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10483 * FIXME: Use generic methods.
10490 g_assert_not_reached ();
10492 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10493 if ((res = mono_marshal_find_in_cache (cache, method)))
10497 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10500 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10502 #ifndef DISABLE_JIT
10503 /* Call the method */
10505 mono_mb_emit_ldarg (mb, 0);
10506 for (i = 0; i < sig->param_count; i++)
10507 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10511 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10512 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10514 mono_mb_emit_managed_call (mb, method, NULL);
10516 mono_mb_emit_byte (mb, CEE_RET);
10519 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10520 info->d.array_accessor.method = method;
10524 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10525 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10527 res = mono_mb_create_and_cache_full (cache, method,
10528 mb, sig, sig->param_count + 16,
10537 static inline void*
10538 mono_marshal_alloc_co_task_mem (size_t size)
10540 if ((gulong)size == 0)
10541 /* This returns a valid pointer for size 0 on MS.NET */
10544 return g_try_malloc ((gulong)size);
10549 mono_marshal_alloc (gulong size, MonoError *error)
10553 mono_error_init (error);
10555 res = mono_marshal_alloc_co_task_mem (size);
10557 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10562 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10564 ves_icall_marshal_alloc (gulong size)
10567 void *ret = mono_marshal_alloc (size, &error);
10568 if (!mono_error_ok (&error)) {
10569 mono_error_set_pending_exception (&error);
10578 mono_marshal_free_co_task_mem (void *ptr)
10586 mono_marshal_free (gpointer ptr)
10588 mono_marshal_free_co_task_mem (ptr);
10592 mono_marshal_free_array (gpointer *ptr, int size)
10599 for (i = 0; i < size; i++)
10605 mono_marshal_string_to_utf16 (MonoString *s)
10607 return s ? mono_string_chars (s) : NULL;
10610 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10612 mono_marshal_string_to_utf16_copy (MonoString *s)
10618 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10619 if (!mono_error_ok (&error)) {
10620 mono_error_set_pending_exception (&error);
10623 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10624 res [mono_string_length (s)] = 0;
10630 * mono_marshal_set_last_error:
10632 * This function is invoked to set the last error value from a P/Invoke call
10633 * which has SetLastError set.
10636 mono_marshal_set_last_error (void)
10639 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10641 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10646 mono_marshal_set_last_error_windows (int error)
10649 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10654 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10655 gpointer dest, gint32 length)
10660 MONO_CHECK_ARG_NULL (src,);
10661 MONO_CHECK_ARG_NULL (dest,);
10663 if (src->obj.vtable->klass->rank != 1) {
10664 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10667 if (start_index < 0) {
10668 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10672 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10675 if (start_index + length > mono_array_length (src)) {
10676 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10680 element_size = mono_array_element_size (src->obj.vtable->klass);
10682 /* no references should be involved */
10683 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10685 memcpy (dest, source_addr, length * element_size);
10689 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10690 MonoArray *dest, gint32 length)
10695 MONO_CHECK_ARG_NULL (src,);
10696 MONO_CHECK_ARG_NULL (dest,);
10698 if (dest->obj.vtable->klass->rank != 1) {
10699 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10702 if (start_index < 0) {
10703 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10707 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10710 if (start_index + length > mono_array_length (dest)) {
10711 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10714 element_size = mono_array_element_size (dest->obj.vtable->klass);
10716 /* no references should be involved */
10717 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10719 memcpy (dest_addr, src, length * element_size);
10723 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10728 return mono_string_new (mono_domain_get (), ptr);
10732 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10735 MonoString *result = NULL;
10736 mono_error_init (&error);
10738 mono_error_set_argument_null (&error, "ptr", "");
10740 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10741 mono_error_set_pending_exception (&error);
10746 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10749 MonoString *res = NULL;
10750 MonoDomain *domain = mono_domain_get ();
10760 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10761 if (!mono_error_ok (&error)) {
10762 mono_error_set_pending_exception (&error);
10769 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10772 MonoString *res = NULL;
10773 MonoDomain *domain = mono_domain_get ();
10775 mono_error_init (&error);
10779 mono_error_set_argument_null (&error, "ptr", "");
10781 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10784 if (!mono_error_ok (&error))
10785 mono_error_set_pending_exception (&error);
10790 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10792 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10796 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10802 MONO_CHECK_ARG_NULL (rtype, 0);
10804 type = rtype->type;
10805 klass = mono_class_from_mono_type (type);
10806 if (!mono_class_init (klass)) {
10807 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10811 layout = (mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK);
10813 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10814 return sizeof (gpointer);
10815 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10817 MonoException *exc;
10819 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10820 exc = mono_get_exception_argument ("t", msg);
10822 mono_set_pending_exception (exc);
10826 return mono_class_native_size (klass, NULL);
10830 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10833 MonoMethod *method;
10836 MONO_CHECK_ARG_NULL (obj,);
10837 MONO_CHECK_ARG_NULL (dst,);
10839 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10843 pa [2] = &delete_old;
10845 mono_runtime_invoke_checked (method, NULL, pa, &error);
10846 if (!mono_error_ok (&error))
10847 mono_error_set_pending_exception (&error);
10851 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10853 MonoMethod *method;
10856 mono_error_init (error);
10858 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10863 mono_runtime_invoke_checked (method, NULL, pa, error);
10867 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10872 MONO_CHECK_ARG_NULL (src,);
10873 MONO_CHECK_ARG_NULL (dst,);
10875 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10877 if (t->type == MONO_TYPE_VALUETYPE) {
10878 MonoException *exc;
10881 tmp = g_strdup_printf ("Destination is a boxed value type.");
10882 exc = mono_get_exception_argument ("dst", tmp);
10885 mono_set_pending_exception (exc);
10889 ptr_to_structure (src, dst, &error);
10890 if (!mono_error_ok (&error))
10891 mono_error_set_pending_exception (&error);
10895 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10899 MonoDomain *domain = mono_domain_get ();
10904 MONO_CHECK_ARG_NULL (type, NULL);
10906 klass = mono_class_from_mono_type (type->type);
10907 if (!mono_class_init (klass)) {
10908 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10912 res = mono_object_new_checked (domain, klass, &error);
10913 if (!mono_error_ok (&error)) {
10914 mono_error_set_pending_exception (&error);
10918 ptr_to_structure (src, res, &error);
10919 if (!mono_error_ok (&error)) {
10920 mono_error_set_pending_exception (&error);
10928 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10931 MonoMarshalType *info;
10934 int match_index = -1;
10936 MONO_CHECK_ARG_NULL (type, 0);
10937 MONO_CHECK_ARG_NULL (field_name, 0);
10939 fname = mono_string_to_utf8_checked (field_name, &error);
10940 if (mono_error_set_pending_exception (&error))
10942 klass = mono_class_from_mono_type (type->type);
10943 if (!mono_class_init (klass)) {
10944 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10948 while (klass && match_index == -1) {
10949 MonoClassField* field;
10951 gpointer iter = NULL;
10952 while ((field = mono_class_get_fields (klass, &iter))) {
10953 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10955 if (!strcmp (fname, mono_field_get_name (field))) {
10962 if (match_index == -1)
10963 klass = klass->parent;
10968 if(match_index == -1) {
10969 MonoException* exc;
10972 /* Get back original class instance */
10973 klass = mono_class_from_mono_type (type->type);
10975 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10976 exc = mono_get_exception_argument ("fieldName", tmp);
10979 mono_set_pending_exception ((MonoException*)exc);
10983 info = mono_marshal_load_type_info (klass);
10984 return info->fields [match_index].offset;
10989 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10992 char *ret = mono_string_to_utf8_checked (string, &error);
10993 mono_error_set_pending_exception (&error);
10998 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11000 if (string == NULL)
11003 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
11005 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11006 res [mono_string_length (string)] = 0;
11010 #endif /* !HOST_WIN32 */
11013 mono_struct_delete_old (MonoClass *klass, char *ptr)
11015 MonoMarshalType *info;
11018 info = mono_marshal_load_type_info (klass);
11020 for (i = 0; i < info->num_fields; i++) {
11021 MonoMarshalConv conv;
11022 MonoType *ftype = info->fields [i].field->type;
11025 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11028 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11029 klass->unicode, &conv);
11031 cpos = ptr + info->fields [i].offset;
11034 case MONO_MARSHAL_CONV_NONE:
11035 if (MONO_TYPE_ISSTRUCT (ftype)) {
11036 mono_struct_delete_old (ftype->data.klass, cpos);
11040 case MONO_MARSHAL_CONV_STR_LPWSTR:
11041 /* We assume this field points inside a MonoString */
11043 case MONO_MARSHAL_CONV_STR_LPTSTR:
11044 #ifdef TARGET_WIN32
11045 /* We assume this field points inside a MonoString
11049 case MONO_MARSHAL_CONV_STR_LPSTR:
11050 case MONO_MARSHAL_CONV_STR_BSTR:
11051 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11052 case MONO_MARSHAL_CONV_STR_TBSTR:
11053 case MONO_MARSHAL_CONV_STR_UTF8STR:
11054 mono_marshal_free (*(gpointer *)cpos);
11064 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11068 MONO_CHECK_ARG_NULL (src,);
11069 MONO_CHECK_ARG_NULL (type,);
11071 klass = mono_class_from_mono_type (type->type);
11072 if (!mono_class_init (klass)) {
11073 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11077 mono_struct_delete_old (klass, (char *)src);
11081 static inline void *
11082 mono_marshal_alloc_hglobal (size_t size)
11084 return g_try_malloc (size);
11089 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11092 size_t s = (size_t)size;
11095 /* This returns a valid pointer for size 0 on MS.NET */
11098 res = mono_marshal_alloc_hglobal (s);
11101 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11109 static inline gpointer
11110 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11112 return g_try_realloc (ptr, size);
11117 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11120 size_t s = (size_t)size;
11123 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11127 res = mono_marshal_realloc_hglobal (ptr, s);
11130 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11139 mono_marshal_free_hglobal (gpointer ptr)
11147 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11149 mono_marshal_free_hglobal (ptr);
11153 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11155 void *res = mono_marshal_alloc_co_task_mem (size);
11158 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11165 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11167 void *res = mono_marshal_alloc_co_task_mem (size);
11170 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11177 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11179 mono_marshal_free_co_task_mem (ptr);
11184 static inline gpointer
11185 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11187 return g_try_realloc (ptr, (gulong)size);
11192 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11194 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11197 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11204 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11206 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11210 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11212 MonoClass *klass = mono_type_get_class (type->type);
11213 if (!mono_class_init (klass)) {
11214 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11218 return mono_ftnptr_to_delegate (klass, ftn);
11222 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11224 return mono_delegate_to_ftnptr (delegate);
11228 * mono_marshal_is_loading_type_info:
11230 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11234 mono_marshal_is_loading_type_info (MonoClass *klass)
11236 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11238 return g_slist_find (loads_list, klass) != NULL;
11242 * mono_marshal_load_type_info:
11244 * Initialize klass::marshal_info using information from metadata. This function can
11245 * recursively call itself, and the caller is responsible to avoid that by calling
11246 * mono_marshal_is_loading_type_info () beforehand.
11248 * LOCKING: Acquires the loader lock.
11251 mono_marshal_load_type_info (MonoClass* klass)
11254 guint32 native_size = 0, min_align = 1, packing;
11255 MonoMarshalType *info;
11256 MonoClassField* field;
11259 GSList *loads_list;
11261 g_assert (klass != NULL);
11263 info = mono_class_get_marshal_info (klass);
11267 if (!klass->inited)
11268 mono_class_init (klass);
11270 info = mono_class_get_marshal_info (klass);
11275 * This function can recursively call itself, so we keep the list of classes which are
11276 * under initialization in a TLS list.
11278 g_assert (!mono_marshal_is_loading_type_info (klass));
11279 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11280 loads_list = g_slist_prepend (loads_list, klass);
11281 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11284 while ((field = mono_class_get_fields (klass, &iter))) {
11285 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11287 if (mono_field_is_deleted (field))
11292 layout = mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK;
11294 /* The mempool is protected by the loader lock */
11295 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11296 info->num_fields = count;
11298 /* Try to find a size for this type in metadata */
11299 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11301 if (klass->parent) {
11302 int parent_size = mono_class_native_size (klass->parent, NULL);
11304 /* Add parent size to real size */
11305 native_size += parent_size;
11306 info->native_size = parent_size;
11309 packing = klass->packing_size ? klass->packing_size : 8;
11312 while ((field = mono_class_get_fields (klass, &iter))) {
11316 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11319 if (mono_field_is_deleted (field))
11321 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11322 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11323 NULL, NULL, &info->fields [j].mspec);
11325 info->fields [j].field = field;
11327 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11328 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11329 /* This field is a hack inserted by MCS to empty structures */
11334 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11335 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11336 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11337 &align, TRUE, klass->unicode);
11338 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11339 min_align = MAX (align, min_align);
11340 info->fields [j].offset = info->native_size;
11341 info->fields [j].offset += align - 1;
11342 info->fields [j].offset &= ~(align - 1);
11343 info->native_size = info->fields [j].offset + size;
11345 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11346 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11347 &align, TRUE, klass->unicode);
11348 min_align = MAX (align, min_align);
11349 info->fields [j].offset = field->offset - sizeof (MonoObject);
11350 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11356 if (klass->byval_arg.type == MONO_TYPE_PTR)
11357 info->native_size = sizeof (gpointer);
11359 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11360 info->native_size = MAX (native_size, info->native_size);
11362 * If the provided Size is equal or larger than the calculated size, and there
11363 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11365 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11366 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11369 min_align = MIN (min_align, packing);
11373 if (info->native_size & (min_align - 1)) {
11374 info->native_size += min_align - 1;
11375 info->native_size &= ~(min_align - 1);
11378 info->min_align = min_align;
11380 /* Update the class's blittable info, if the layouts don't match */
11381 if (info->native_size != mono_class_value_size (klass, NULL))
11382 klass->blittable = FALSE;
11384 /* If this is an array type, ensure that we have element info */
11385 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11386 mono_marshal_load_type_info (klass->element_class);
11389 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11390 loads_list = g_slist_remove (loads_list, klass);
11391 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11393 mono_marshal_lock ();
11394 MonoMarshalType *info2 = mono_class_get_marshal_info (klass);
11396 /*We do double-checking locking on marshal_info */
11397 mono_memory_barrier ();
11398 mono_class_set_marshal_info (klass, info);
11399 ++class_marshal_info_count;
11402 mono_marshal_unlock ();
11408 * mono_class_native_size:
11411 * Returns: the native size of an object instance (when marshaled
11412 * to unmanaged code)
11415 mono_class_native_size (MonoClass *klass, guint32 *align)
11417 MonoMarshalType *info = mono_class_get_marshal_info (klass);
11419 if (mono_marshal_is_loading_type_info (klass)) {
11424 mono_marshal_load_type_info (klass);
11426 info = mono_class_get_marshal_info (klass);
11430 *align = info->min_align;
11432 return info->native_size;
11436 * mono_type_native_stack_size:
11437 * @t: the type to return the size it uses on the stack
11439 * Returns: the number of bytes required to hold an instance of this
11440 * type on the native stack
11443 mono_type_native_stack_size (MonoType *t, guint32 *align)
11447 g_assert (t != NULL);
11453 *align = sizeof (gpointer);
11454 return sizeof (gpointer);
11458 case MONO_TYPE_BOOLEAN:
11459 case MONO_TYPE_CHAR:
11470 case MONO_TYPE_STRING:
11471 case MONO_TYPE_OBJECT:
11472 case MONO_TYPE_CLASS:
11473 case MONO_TYPE_SZARRAY:
11474 case MONO_TYPE_PTR:
11475 case MONO_TYPE_FNPTR:
11476 case MONO_TYPE_ARRAY:
11477 *align = sizeof (gpointer);
11478 return sizeof (gpointer);
11483 *align = MONO_ABI_ALIGNOF (double);
11487 *align = MONO_ABI_ALIGNOF (gint64);
11489 case MONO_TYPE_GENERICINST:
11490 if (!mono_type_generic_inst_is_valuetype (t)) {
11491 *align = sizeof (gpointer);
11492 return sizeof (gpointer);
11495 case MONO_TYPE_TYPEDBYREF:
11496 case MONO_TYPE_VALUETYPE: {
11498 MonoClass *klass = mono_class_from_mono_type (t);
11500 if (klass->enumtype)
11501 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11503 size = mono_class_native_size (klass, align);
11504 *align = *align + 3;
11514 g_error ("type 0x%02x unknown", t->type);
11520 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11521 gboolean as_field, gboolean unicode)
11523 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11526 switch (native_type) {
11527 case MONO_NATIVE_BOOLEAN:
11530 case MONO_NATIVE_I1:
11531 case MONO_NATIVE_U1:
11534 case MONO_NATIVE_I2:
11535 case MONO_NATIVE_U2:
11536 case MONO_NATIVE_VARIANTBOOL:
11539 case MONO_NATIVE_I4:
11540 case MONO_NATIVE_U4:
11541 case MONO_NATIVE_ERROR:
11544 case MONO_NATIVE_I8:
11545 case MONO_NATIVE_U8:
11546 *align = MONO_ABI_ALIGNOF (gint64);
11548 case MONO_NATIVE_R4:
11551 case MONO_NATIVE_R8:
11552 *align = MONO_ABI_ALIGNOF (double);
11554 case MONO_NATIVE_INT:
11555 case MONO_NATIVE_UINT:
11556 case MONO_NATIVE_LPSTR:
11557 case MONO_NATIVE_LPWSTR:
11558 case MONO_NATIVE_LPTSTR:
11559 case MONO_NATIVE_BSTR:
11560 case MONO_NATIVE_ANSIBSTR:
11561 case MONO_NATIVE_TBSTR:
11562 case MONO_NATIVE_UTF8STR:
11563 case MONO_NATIVE_LPARRAY:
11564 case MONO_NATIVE_SAFEARRAY:
11565 case MONO_NATIVE_IUNKNOWN:
11566 case MONO_NATIVE_IDISPATCH:
11567 case MONO_NATIVE_INTERFACE:
11568 case MONO_NATIVE_ASANY:
11569 case MONO_NATIVE_FUNC:
11570 case MONO_NATIVE_LPSTRUCT:
11571 *align = MONO_ABI_ALIGNOF (gpointer);
11572 return sizeof (gpointer);
11573 case MONO_NATIVE_STRUCT:
11574 klass = mono_class_from_mono_type (type);
11575 if (klass == mono_defaults.object_class &&
11576 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11580 return mono_class_native_size (klass, align);
11581 case MONO_NATIVE_BYVALTSTR: {
11582 int esize = unicode ? 2: 1;
11585 return mspec->data.array_data.num_elem * esize;
11587 case MONO_NATIVE_BYVALARRAY: {
11588 // FIXME: Have to consider ArraySubType
11590 klass = mono_class_from_mono_type (type);
11591 if (klass->element_class == mono_defaults.char_class) {
11592 esize = unicode ? 2 : 1;
11595 esize = mono_class_native_size (klass->element_class, align);
11598 return mspec->data.array_data.num_elem * esize;
11600 case MONO_NATIVE_CUSTOM:
11601 *align = sizeof (gpointer);
11602 return sizeof (gpointer);
11604 case MONO_NATIVE_CURRENCY:
11605 case MONO_NATIVE_VBBYREFSTR:
11607 g_error ("native type %02x not implemented", native_type);
11610 g_assert_not_reached ();
11614 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11616 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11625 t = &o->vtable->klass->byval_arg;
11629 case MONO_TYPE_PTR:
11632 case MONO_TYPE_BOOLEAN:
11635 case MONO_TYPE_CHAR:
11640 return mono_object_unbox (o);
11642 case MONO_TYPE_STRING:
11643 switch (string_encoding) {
11644 case MONO_NATIVE_LPWSTR:
11645 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11646 case MONO_NATIVE_LPSTR:
11647 case MONO_NATIVE_UTF8STR:
11648 // Same code path, because in Mono, we treated strings as Utf8
11649 return mono_string_to_utf8str ((MonoString*)o);
11651 g_warning ("marshaling conversion %d not implemented", string_encoding);
11652 g_assert_not_reached ();
11655 case MONO_TYPE_CLASS:
11656 case MONO_TYPE_VALUETYPE: {
11657 MonoMethod *method;
11660 MonoBoolean delete_old = FALSE;
11662 klass = t->data.klass;
11664 if (mono_class_is_auto_layout (klass))
11667 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11668 return mono_object_unbox (o);
11670 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11671 if (!mono_error_ok (&error)) {
11672 mono_error_set_pending_exception (&error);
11676 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11677 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11681 pa [2] = &delete_old;
11683 mono_runtime_invoke_checked (method, NULL, pa, &error);
11684 if (!mono_error_ok (&error)) {
11685 mono_error_set_pending_exception (&error);
11695 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11699 /* This is a JIT icall, it sets the pending exception */
11701 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11710 t = &o->vtable->klass->byval_arg;
11712 case MONO_TYPE_STRING:
11713 switch (string_encoding) {
11714 case MONO_NATIVE_LPWSTR:
11715 case MONO_NATIVE_LPSTR:
11716 case MONO_NATIVE_UTF8STR:
11717 mono_marshal_free (ptr);
11720 g_warning ("marshaling conversion %d not implemented", string_encoding);
11721 g_assert_not_reached ();
11724 case MONO_TYPE_CLASS:
11725 case MONO_TYPE_VALUETYPE: {
11726 klass = t->data.klass;
11728 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11731 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11732 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11738 mono_runtime_invoke_checked (method, NULL, pa, &error);
11739 if (!mono_error_ok (&error)) {
11740 mono_error_set_pending_exception (&error);
11745 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11746 mono_struct_delete_old (klass, (char *)ptr);
11749 mono_marshal_free (ptr);
11758 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11760 MonoMethodSignature *sig, *csig;
11761 MonoMethodBuilder *mb;
11766 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11767 mb->method->slot = -1;
11769 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11770 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11772 sig = mono_method_signature (method);
11773 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11774 csig->generic_param_count = 0;
11776 #ifndef DISABLE_JIT
11777 mono_mb_emit_ldarg (mb, 0);
11778 for (i = 0; i < csig->param_count; i++)
11779 mono_mb_emit_ldarg (mb, i + 1);
11780 mono_mb_emit_managed_call (mb, method, NULL);
11781 mono_mb_emit_byte (mb, CEE_RET);
11783 /* We can corlib internal methods */
11784 mb->skip_visibility = TRUE;
11786 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11787 info->d.generic_array_helper.method = method;
11788 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11796 * The mono_win32_compat_* functions are implementations of inline
11797 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11798 * although not exported by kernel32.
11800 * We map the appropiate kernel32 entries to these functions using
11801 * dllmaps declared in the global etc/mono/config.
11805 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11807 if (!dest || !source)
11810 memcpy (dest, source, length);
11814 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11816 memset (dest, fill, length);
11820 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11822 if (!dest || !source)
11825 memmove (dest, source, length);
11829 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11831 memset (dest, 0, length);
11835 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11840 for (i = 0; i < len; ++i)
11844 g_assert (i < len);
11847 while (byte && !(byte & 1))
11849 g_assert (byte == 1);
11852 *bitmask = buf [i];
11856 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11858 MonoMethodBuilder *mb;
11859 MonoMethodSignature *sig, *csig;
11860 MonoExceptionClause *clause;
11865 int i, param_count, sig_size, pos_leave;
11869 // FIXME: we need to store the exception into a MonoHandle
11870 g_assert (!mono_threads_is_coop_enabled ());
11872 klass = method->klass;
11873 image = method->klass->image;
11875 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11877 if ((res = mono_marshal_find_in_cache (cache, method)))
11880 sig = mono_method_signature (method);
11881 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11883 /* add "this" and exception param */
11884 param_count = sig->param_count + sig->hasthis + 1;
11886 /* dup & extend signature */
11887 csig = mono_metadata_signature_alloc (image, param_count);
11888 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11889 memcpy (csig, sig, sig_size);
11890 csig->param_count = param_count;
11893 csig->call_convention = MONO_CALL_DEFAULT;
11895 if (sig->hasthis) {
11897 csig->params [0] = &klass->byval_arg;
11898 /* move params up by one */
11899 for (i = 0; i < sig->param_count; i++)
11900 csig->params [i + 1] = sig->params [i];
11903 /* setup exception param as byref+[out] */
11904 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11905 &mono_defaults.exception_class->byval_arg);
11906 csig->params [param_count - 1]->byref = 1;
11907 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11909 /* convert struct return to object */
11910 if (MONO_TYPE_ISSTRUCT (sig->ret))
11911 csig->ret = &mono_defaults.object_class->byval_arg;
11913 #ifndef DISABLE_JIT
11914 /* local 0 (temp for exception object) */
11915 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11917 /* local 1 (temp for result) */
11918 if (!MONO_TYPE_IS_VOID (sig->ret))
11919 mono_mb_add_local (mb, sig->ret);
11921 /* clear exception arg */
11922 mono_mb_emit_ldarg (mb, param_count - 1);
11923 mono_mb_emit_byte (mb, CEE_LDNULL);
11924 mono_mb_emit_byte (mb, CEE_STIND_REF);
11927 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11928 clause->try_offset = mono_mb_get_label (mb);
11930 /* push method's args */
11931 for (i = 0; i < param_count - 1; i++) {
11935 mono_mb_emit_ldarg (mb, i);
11937 /* get the byval type of the param */
11938 klass = mono_class_from_mono_type (csig->params [i]);
11939 type = &klass->byval_arg;
11941 /* unbox struct args */
11942 if (MONO_TYPE_ISSTRUCT (type)) {
11943 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11945 /* byref args & and the "this" arg must remain a ptr.
11946 Otherwise make a copy of the value type */
11947 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11948 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11950 csig->params [i] = &mono_defaults.object_class->byval_arg;
11955 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11956 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11958 mono_mb_emit_op (mb, CEE_CALL, method);
11960 /* save result at local 1 */
11961 if (!MONO_TYPE_IS_VOID (sig->ret))
11962 mono_mb_emit_stloc (mb, 1);
11964 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11967 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11968 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11969 clause->data.catch_class = mono_defaults.object_class;
11971 clause->handler_offset = mono_mb_get_label (mb);
11973 /* store exception at local 0 */
11974 mono_mb_emit_stloc (mb, 0);
11975 mono_mb_emit_ldarg (mb, param_count - 1);
11976 mono_mb_emit_ldloc (mb, 0);
11977 mono_mb_emit_byte (mb, CEE_STIND_REF);
11978 mono_mb_emit_branch (mb, CEE_LEAVE);
11980 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11982 mono_mb_set_clauses (mb, 1, clause);
11984 mono_mb_patch_branch (mb, pos_leave);
11987 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11988 mono_mb_emit_ldloc (mb, 1);
11990 /* box the return value */
11991 if (MONO_TYPE_ISSTRUCT (sig->ret))
11992 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11995 mono_mb_emit_byte (mb, CEE_RET);
11998 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12005 * mono_marshal_free_dynamic_wrappers:
12007 * Free wrappers of the dynamic method METHOD.
12010 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12012 MonoImage *image = method->klass->image;
12014 g_assert (method_is_dynamic (method));
12016 /* This could be called during shutdown */
12017 if (marshal_mutex_initialized)
12018 mono_marshal_lock ();
12020 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12021 * they could be shared with other methods ?
12023 if (image->wrapper_caches.runtime_invoke_direct_cache)
12024 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
12025 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12026 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12027 // FIXME: Need to clear the caches in other images as well
12028 if (image->delegate_bound_static_invoke_cache)
12029 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12031 if (marshal_mutex_initialized)
12032 mono_marshal_unlock ();
12036 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12038 g_assert (ftnptr_eh_callback);
12039 ftnptr_eh_callback (gchandle);
12043 ftnptr_eh_callback_default (guint32 gchandle)
12045 MonoException *exc;
12046 gpointer stackdata;
12048 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12050 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12052 mono_gchandle_free (gchandle);
12054 mono_raise_exception (exc);
12058 * mono_install_ftnptr_eh_callback:
12060 * Install a callback that should be called when there is a managed exception
12061 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12062 * managed exception to a native exception, to properly unwind the native
12063 * stack; this native exception will then be converted back to a managed
12064 * exception in their managed-to-native wrapper.
12067 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12069 ftnptr_eh_callback = callback;
12072 static MonoThreadInfo*
12073 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12075 MonoThreadInfo *info = mono_thread_info_current ();
12077 mono_stack_mark_init (info, stackmark);
12078 mono_error_init (error);
12083 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12085 mono_stack_mark_pop (info, stackmark);
12086 mono_error_set_pending_exception (error);