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, &error);
433 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
437 // Add the delegate to the delegate hash table
438 delegate_hash_table_add (delegate);
440 /* when the object is collected, collect the dynamic method, too */
441 mono_object_register_finalizer ((MonoObject*)delegate);
443 return delegate->delegate_trampoline;
446 if (target_handle != 0)
447 mono_gchandle_free (target_handle);
448 mono_error_set_pending_exception (&error);
453 * this hash table maps from a delegate trampoline object to a weak reference
454 * of the delegate. As an optimizations with a non-moving GC we store the
455 * object pointer itself, otherwise we use a GC handle.
457 static GHashTable *delegate_hash_table;
460 delegate_hash_table_new (void) {
461 return g_hash_table_new (NULL, NULL);
465 delegate_hash_table_remove (MonoDelegate *d)
467 guint32 gchandle = 0;
469 mono_marshal_lock ();
470 if (delegate_hash_table == NULL)
471 delegate_hash_table = delegate_hash_table_new ();
472 if (mono_gc_is_moving ())
473 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
474 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
475 mono_marshal_unlock ();
476 if (gchandle && mono_gc_is_moving ())
477 mono_gchandle_free (gchandle);
481 delegate_hash_table_add (MonoDelegate *d)
484 guint32 old_gchandle;
486 mono_marshal_lock ();
487 if (delegate_hash_table == NULL)
488 delegate_hash_table = delegate_hash_table_new ();
489 if (mono_gc_is_moving ()) {
490 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
491 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
492 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
494 mono_gchandle_free (old_gchandle);
496 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
498 mono_marshal_unlock ();
502 * mono_marshal_use_aot_wrappers:
504 * Instructs this module to use AOT compatible wrappers.
507 mono_marshal_use_aot_wrappers (gboolean use)
509 use_aot_wrappers = use;
513 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
516 MonoCustomAttrInfo *cinfo;
517 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
519 /* The attribute is only available in Net 2.0 */
520 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
522 * The pinvoke attributes are stored in a real custom attribute so we have to
525 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
526 if (!mono_error_ok (&error)) {
527 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
528 mono_error_cleanup (&error);
530 if (cinfo && !mono_runtime_get_no_exec ()) {
531 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
533 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
535 if (!mono_error_ok (&error)) {
536 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
537 mono_error_cleanup (&error);
541 mono_custom_attrs_free (cinfo);
546 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
548 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
557 mono_marshal_lock ();
558 if (delegate_hash_table == NULL)
559 delegate_hash_table = delegate_hash_table_new ();
561 if (mono_gc_is_moving ()) {
562 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
563 mono_marshal_unlock ();
565 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
569 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
570 mono_marshal_unlock ();
573 /* This is a native function, so construct a delegate for it */
574 MonoMethodSignature *sig;
576 MonoMarshalSpec **mspecs;
577 MonoMethod *invoke = mono_get_delegate_invoke (klass);
578 MonoMethodPInvoke piinfo;
579 MonoObject *this_obj;
582 if (use_aot_wrappers) {
583 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
584 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
585 if (!is_ok (&error)) {
586 mono_error_set_pending_exception (&error);
590 memset (&piinfo, 0, sizeof (piinfo));
591 parse_unmanaged_function_pointer_attr (klass, &piinfo);
593 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
594 mono_method_get_marshal_info (invoke, mspecs);
595 /* Freed below so don't alloc from mempool */
596 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
599 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
602 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
604 mono_metadata_free_marshal_spec (mspecs [i]);
609 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
610 if (!mono_error_ok (&error)) {
611 mono_error_set_pending_exception (&error);
614 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
615 if (mono_error_set_pending_exception (&error))
617 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
618 if (mono_error_set_pending_exception (&error))
622 if (d->object.vtable->domain != mono_domain_get ()) {
623 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
631 mono_delegate_free_ftnptr (MonoDelegate *delegate)
636 delegate_hash_table_remove (delegate);
638 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
640 if (!delegate->target) {
641 /* The wrapper method is shared between delegates -> no need to free it */
650 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
653 method = mono_jit_info_get_method (ji);
654 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
656 /*the target gchandle is the first entry after size and the wrapper itself.*/
657 gchandle = GPOINTER_TO_UINT (method_data [2]);
660 mono_gchandle_free (gchandle);
662 mono_runtime_free_method (mono_object_domain (delegate), method);
666 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
668 mono_string_from_byvalstr (const char *data, int max_len)
671 MonoDomain *domain = mono_domain_get ();
677 while (len < max_len - 1 && data [len])
680 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
681 mono_error_set_pending_exception (&error);
685 /* This is a JIT icall, it sets the pending exception and return NULL on error */
687 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
690 MonoString *res = NULL;
691 MonoDomain *domain = mono_domain_get ();
697 while (data [len]) len++;
699 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
700 if (!mono_error_ok (&error)) {
701 mono_error_set_pending_exception (&error);
708 mono_array_to_savearray (MonoArray *array)
713 g_assert_not_reached ();
718 mono_array_to_lparray (MonoArray *array)
721 gpointer *nativeArray = NULL;
722 int nativeArraySize = 0;
732 klass = array->obj.vtable->klass;
734 switch (klass->element_class->byval_arg.type) {
736 g_assert_not_reached ();
738 case MONO_TYPE_CLASS:
739 nativeArraySize = array->max_length;
740 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
741 for(i = 0; i < nativeArraySize; ++i)
742 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
745 case MONO_TYPE_BOOLEAN:
758 case MONO_TYPE_VALUETYPE:
762 case MONO_TYPE_GENERICINST:
763 case MONO_TYPE_OBJECT:
764 case MONO_TYPE_ARRAY:
765 case MONO_TYPE_SZARRAY:
766 case MONO_TYPE_STRING:
768 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
769 g_assert_not_reached ();
772 return array->vector;
776 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
787 klass = array->obj.vtable->klass;
789 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
790 for(i = 0; i < array->max_length; ++i)
791 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
792 g_free (nativeArray);
798 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
800 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
802 if (elclass == mono_defaults.byte_class) {
803 GError *error = NULL;
807 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
810 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
814 g_error_free (error);
817 g_assert_not_reached ();
821 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
823 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
826 /* This is a JIT icall, it sets the pending exception and returns on error */
828 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
830 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
832 if (elclass == mono_defaults.byte_class) {
834 GError *error = NULL;
836 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
838 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
839 g_error_free (error);
843 memcpy (native_arr, as, MIN (strlen (as), elnum));
846 g_assert_not_reached ();
851 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
853 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
856 static MonoStringBuilder *
857 mono_string_builder_new (int starting_string_length)
859 static MonoClass *string_builder_class;
860 static MonoMethod *sb_ctor;
861 static void *args [1];
864 int initial_len = starting_string_length;
870 MonoMethodDesc *desc;
873 string_builder_class = mono_class_get_string_builder_class ();
874 g_assert (string_builder_class);
875 desc = mono_method_desc_new (":.ctor(int)", FALSE);
876 m = mono_method_desc_search_in_class (desc, string_builder_class);
878 mono_method_desc_free (desc);
879 mono_memory_barrier ();
883 // We make a new array in the _to_builder function, so this
884 // array will always be garbage collected.
885 args [0] = &initial_len;
887 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
888 mono_error_assert_ok (&error);
891 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
892 g_assert (exc == NULL);
893 mono_error_assert_ok (&error);
895 g_assert (sb->chunkChars->max_length >= initial_len);
901 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
903 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
904 gunichar2 *charSrc = (gunichar2 *)text;
905 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
907 sb->chunkLength = string_len;
913 mono_string_utf16_to_builder2 (gunichar2 *text)
919 for (len = 0; text [len] != 0; ++len);
921 MonoStringBuilder *sb = mono_string_builder_new (len);
922 mono_string_utf16_to_builder (sb, text);
928 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
933 GError *error = NULL;
935 gunichar2* ut = g_utf8_to_utf16 (text, strlen (text), NULL, &copied, &error);
936 int capacity = mono_string_builder_capacity (sb);
938 if (copied > capacity)
942 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
943 mono_string_utf16_to_builder_copy (sb, ut, copied);
945 g_error_free (error);
951 mono_string_utf8_to_builder2 (char *text)
956 int len = strlen (text);
957 MonoStringBuilder *sb = mono_string_builder_new (len);
958 mono_string_utf8_to_builder (sb, text);
964 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
970 for (len = 0; text [len] != 0; ++len);
972 if (len > mono_string_builder_capacity (sb))
973 len = mono_string_builder_capacity (sb);
975 mono_string_utf16_to_builder_copy (sb, text, len);
979 * mono_string_builder_to_utf8:
980 * @sb: the string builder
982 * Converts to utf8 the contents of the MonoStringBuilder.
984 * Returns: a utf8 string with the contents of the StringBuilder.
986 * The return value must be released with mono_marshal_free.
988 * This is a JIT icall, it sets the pending exception and returns NULL on error.
991 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
994 GError *gerror = NULL;
999 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
1001 guint str_len = mono_string_builder_string_length (sb);
1003 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
1006 g_error_free (gerror);
1007 mono_marshal_free (str_utf16);
1008 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1011 guint len = mono_string_builder_capacity (sb) + 1;
1012 gchar *res = (gchar *)mono_marshal_alloc (MAX (byte_count+1, len * sizeof (gchar)), &error);
1013 if (!mono_error_ok (&error)) {
1014 mono_marshal_free (str_utf16);
1016 mono_error_set_pending_exception (&error);
1020 memcpy (res, tmp, byte_count);
1021 res[byte_count] = '\0';
1023 mono_marshal_free (str_utf16);
1030 * mono_string_builder_to_utf16:
1031 * @sb: the string builder
1033 * Converts to utf16 the contents of the MonoStringBuilder.
1035 * Returns: a utf16 string with the contents of the StringBuilder.
1037 * The return value must be released with mono_marshal_free.
1039 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1042 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1049 g_assert (sb->chunkChars);
1051 guint len = mono_string_builder_capacity (sb);
1056 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1057 if (!mono_error_ok (&error)) {
1058 mono_error_set_pending_exception (&error);
1067 MonoStringBuilder* chunk = sb;
1069 if (chunk->chunkLength > 0) {
1070 // Check that we will not overrun our boundaries.
1071 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1073 if (chunk->chunkLength <= len) {
1074 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1076 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1079 len -= chunk->chunkLength;
1081 chunk = chunk->chunkPrevious;
1082 } while (chunk != NULL);
1088 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1090 mono_string_to_utf8str (MonoString *s)
1093 char *result = mono_string_to_utf8_checked (s, &error);
1094 mono_error_set_pending_exception (&error);
1100 mono_string_to_ansibstr (MonoString *string_obj)
1102 g_error ("UnmanagedMarshal.BStr is not implemented.");
1107 * mono_string_to_byvalstr:
1108 * @dst: Where to store the null-terminated utf8 decoded string.
1109 * @src: the MonoString to copy.
1110 * @size: the maximum number of bytes to copy.
1112 * Copies the MonoString pointed to by @src as a utf8 string
1113 * into @dst, it copies at most @size bytes into the destination.
1116 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1122 g_assert (dst != NULL);
1123 g_assert (size > 0);
1125 memset (dst, 0, size);
1129 s = mono_string_to_utf8_checked (src, &error);
1130 if (mono_error_set_pending_exception (&error))
1132 len = MIN (size, strlen (s));
1135 memcpy (dst, s, len);
1140 * mono_string_to_byvalwstr:
1141 * @dst: Where to store the null-terminated utf16 decoded string.
1142 * @src: the MonoString to copy.
1143 * @size: the maximum number of wide characters to copy (each consumes 2 bytes)
1145 * Copies the MonoString pointed to by @src as a utf16 string into
1146 * @dst, it copies at most @size bytes into the destination (including
1147 * a terminating 16-bit zero terminator).
1150 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1154 g_assert (dst != NULL);
1155 g_assert (size > 1);
1158 memset (dst, 0, size * 2);
1162 len = MIN (size, (mono_string_length (src)));
1163 memcpy (dst, mono_string_chars (src), len * 2);
1164 if (size <= mono_string_length (src))
1166 *((gunichar2 *) dst + len) = 0;
1169 /* this is an icall, it sets the pending exception and returns NULL on error */
1171 mono_string_new_len_wrapper (const char *text, guint length)
1174 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1175 mono_error_set_pending_exception (&error);
1182 * mono_mb_emit_exception_marshal_directive:
1184 * This function assumes ownership of MSG, which should be malloc-ed.
1187 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1192 s = mono_image_strdup (mb->method->klass->image, msg);
1197 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1200 #endif /* !DISABLE_JIT */
1203 mono_type_to_ldind (MonoType *type)
1209 switch (type->type) {
1211 return CEE_LDIND_I1;
1213 case MONO_TYPE_BOOLEAN:
1214 return CEE_LDIND_U1;
1216 return CEE_LDIND_I2;
1218 case MONO_TYPE_CHAR:
1219 return CEE_LDIND_U2;
1221 return CEE_LDIND_I4;
1223 return CEE_LDIND_U4;
1227 case MONO_TYPE_FNPTR:
1229 case MONO_TYPE_CLASS:
1230 case MONO_TYPE_STRING:
1231 case MONO_TYPE_OBJECT:
1232 case MONO_TYPE_SZARRAY:
1233 case MONO_TYPE_ARRAY:
1234 return CEE_LDIND_REF;
1237 return CEE_LDIND_I8;
1239 return CEE_LDIND_R4;
1241 return CEE_LDIND_R8;
1242 case MONO_TYPE_VALUETYPE:
1243 if (type->data.klass->enumtype) {
1244 type = mono_class_enum_basetype (type->data.klass);
1248 case MONO_TYPE_TYPEDBYREF:
1250 case MONO_TYPE_GENERICINST:
1251 type = &type->data.generic_class->container_class->byval_arg;
1254 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1260 mono_type_to_stind (MonoType *type)
1263 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1267 switch (type->type) {
1270 case MONO_TYPE_BOOLEAN:
1271 return CEE_STIND_I1;
1274 case MONO_TYPE_CHAR:
1275 return CEE_STIND_I2;
1278 return CEE_STIND_I4;
1282 case MONO_TYPE_FNPTR:
1284 case MONO_TYPE_CLASS:
1285 case MONO_TYPE_STRING:
1286 case MONO_TYPE_OBJECT:
1287 case MONO_TYPE_SZARRAY:
1288 case MONO_TYPE_ARRAY:
1289 return CEE_STIND_REF;
1292 return CEE_STIND_I8;
1294 return CEE_STIND_R4;
1296 return CEE_STIND_R8;
1297 case MONO_TYPE_VALUETYPE:
1298 if (type->data.klass->enumtype) {
1299 type = mono_class_enum_basetype (type->data.klass);
1303 case MONO_TYPE_TYPEDBYREF:
1305 case MONO_TYPE_GENERICINST:
1306 type = &type->data.generic_class->container_class->byval_arg;
1309 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1317 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1320 case MONO_MARSHAL_CONV_BOOL_I4:
1321 mono_mb_emit_ldloc (mb, 1);
1322 mono_mb_emit_ldloc (mb, 0);
1323 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1324 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1325 mono_mb_emit_byte (mb, 3);
1326 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1327 mono_mb_emit_byte (mb, CEE_BR_S);
1328 mono_mb_emit_byte (mb, 1);
1329 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1330 mono_mb_emit_byte (mb, CEE_STIND_I1);
1332 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1333 mono_mb_emit_ldloc (mb, 1);
1334 mono_mb_emit_ldloc (mb, 0);
1335 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1336 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1337 mono_mb_emit_byte (mb, 3);
1338 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1339 mono_mb_emit_byte (mb, CEE_BR_S);
1340 mono_mb_emit_byte (mb, 1);
1341 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1342 mono_mb_emit_byte (mb, CEE_STIND_I1);
1344 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1345 MonoClass *eklass = NULL;
1348 if (type->type == MONO_TYPE_SZARRAY) {
1349 eklass = type->data.klass;
1351 g_assert_not_reached ();
1354 esize = mono_class_native_size (eklass, NULL);
1356 /* create a new array */
1357 mono_mb_emit_ldloc (mb, 1);
1358 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1359 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1360 mono_mb_emit_byte (mb, CEE_STIND_REF);
1362 if (eklass->blittable) {
1363 /* copy the elements */
1364 mono_mb_emit_ldloc (mb, 1);
1365 mono_mb_emit_byte (mb, CEE_LDIND_I);
1366 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1367 mono_mb_emit_byte (mb, CEE_ADD);
1368 mono_mb_emit_ldloc (mb, 0);
1369 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1370 mono_mb_emit_byte (mb, CEE_PREFIX1);
1371 mono_mb_emit_byte (mb, CEE_CPBLK);
1374 int array_var, src_var, dst_var, index_var;
1375 guint32 label2, label3;
1377 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1378 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1379 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1382 mono_mb_emit_ldloc (mb, 1);
1383 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1384 mono_mb_emit_stloc (mb, array_var);
1386 /* save the old src pointer */
1387 mono_mb_emit_ldloc (mb, 0);
1388 mono_mb_emit_stloc (mb, src_var);
1389 /* save the old dst pointer */
1390 mono_mb_emit_ldloc (mb, 1);
1391 mono_mb_emit_stloc (mb, dst_var);
1393 /* Emit marshalling loop */
1394 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1395 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1396 mono_mb_emit_stloc (mb, index_var);
1399 label2 = mono_mb_get_label (mb);
1400 mono_mb_emit_ldloc (mb, index_var);
1401 mono_mb_emit_ldloc (mb, array_var);
1402 mono_mb_emit_byte (mb, CEE_LDLEN);
1403 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1405 /* src is already set */
1408 mono_mb_emit_ldloc (mb, array_var);
1409 mono_mb_emit_ldloc (mb, index_var);
1410 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1411 mono_mb_emit_stloc (mb, 1);
1413 /* Do the conversion */
1414 emit_struct_conv (mb, eklass, TRUE);
1417 mono_mb_emit_add_to_local (mb, index_var, 1);
1419 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1421 mono_mb_patch_branch (mb, label3);
1423 /* restore the old src pointer */
1424 mono_mb_emit_ldloc (mb, src_var);
1425 mono_mb_emit_stloc (mb, 0);
1426 /* restore the old dst pointer */
1427 mono_mb_emit_ldloc (mb, dst_var);
1428 mono_mb_emit_stloc (mb, 1);
1432 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1433 MonoClass *eclass = mono_defaults.char_class;
1435 /* create a new array */
1436 mono_mb_emit_ldloc (mb, 1);
1437 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1438 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1439 mono_mb_emit_byte (mb, CEE_STIND_REF);
1441 mono_mb_emit_ldloc (mb, 1);
1442 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1443 mono_mb_emit_ldloc (mb, 0);
1444 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1445 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1448 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1449 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1450 mono_mb_emit_ldloc (mb, 1);
1451 mono_mb_emit_ldloc (mb, 0);
1452 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1453 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1455 mono_mb_emit_ldloc (mb, 1);
1456 mono_mb_emit_ldloc (mb, 0);
1457 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1459 mono_mb_emit_byte (mb, CEE_STIND_REF);
1461 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1462 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1463 mono_mb_emit_ldloc (mb, 1);
1464 mono_mb_emit_ldloc (mb, 0);
1465 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1466 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1468 mono_mb_emit_ldloc (mb, 1);
1469 mono_mb_emit_ldloc (mb, 0);
1470 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1472 mono_mb_emit_byte (mb, CEE_STIND_REF);
1474 case MONO_MARSHAL_CONV_STR_LPTSTR:
1475 mono_mb_emit_ldloc (mb, 1);
1476 mono_mb_emit_ldloc (mb, 0);
1477 mono_mb_emit_byte (mb, CEE_LDIND_I);
1479 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1481 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1483 mono_mb_emit_byte (mb, CEE_STIND_REF);
1486 // In Mono historically LPSTR was treated as a UTF8STR
1487 case MONO_MARSHAL_CONV_STR_LPSTR:
1488 case MONO_MARSHAL_CONV_STR_UTF8STR:
1489 mono_mb_emit_ldloc (mb, 1);
1490 mono_mb_emit_ldloc (mb, 0);
1491 mono_mb_emit_byte (mb, CEE_LDIND_I);
1492 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1493 mono_mb_emit_byte (mb, CEE_STIND_REF);
1495 case MONO_MARSHAL_CONV_STR_LPWSTR:
1496 mono_mb_emit_ldloc (mb, 1);
1497 mono_mb_emit_ldloc (mb, 0);
1498 mono_mb_emit_byte (mb, CEE_LDIND_I);
1499 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1500 mono_mb_emit_byte (mb, CEE_STIND_REF);
1502 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1503 MonoClass *klass = mono_class_from_mono_type (type);
1504 int src_var, dst_var;
1506 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1507 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1509 /* *dst = new object */
1510 mono_mb_emit_ldloc (mb, 1);
1511 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1512 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1513 mono_mb_emit_byte (mb, CEE_STIND_REF);
1515 /* save the old src pointer */
1516 mono_mb_emit_ldloc (mb, 0);
1517 mono_mb_emit_stloc (mb, src_var);
1518 /* save the old dst pointer */
1519 mono_mb_emit_ldloc (mb, 1);
1520 mono_mb_emit_stloc (mb, dst_var);
1522 /* dst = pointer to newly created object data */
1523 mono_mb_emit_ldloc (mb, 1);
1524 mono_mb_emit_byte (mb, CEE_LDIND_I);
1525 mono_mb_emit_icon (mb, sizeof (MonoObject));
1526 mono_mb_emit_byte (mb, CEE_ADD);
1527 mono_mb_emit_stloc (mb, 1);
1529 emit_struct_conv (mb, klass, TRUE);
1531 /* restore the old src pointer */
1532 mono_mb_emit_ldloc (mb, src_var);
1533 mono_mb_emit_stloc (mb, 0);
1534 /* restore the old dst pointer */
1535 mono_mb_emit_ldloc (mb, dst_var);
1536 mono_mb_emit_stloc (mb, 1);
1539 case MONO_MARSHAL_CONV_DEL_FTN: {
1540 MonoClass *klass = mono_class_from_mono_type (type);
1542 mono_mb_emit_ldloc (mb, 1);
1543 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1544 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1545 mono_mb_emit_ldloc (mb, 0);
1546 mono_mb_emit_byte (mb, CEE_LDIND_I);
1547 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1548 mono_mb_emit_byte (mb, CEE_STIND_REF);
1551 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1552 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1556 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1557 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1558 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1559 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1561 #endif /* DISABLE_COM */
1563 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1565 * Passing SafeHandles as ref does not allow the unmanaged code
1566 * to change the SafeHandle value. If the value is changed,
1567 * we should issue a diagnostic exception (NotSupportedException)
1568 * that informs the user that changes to handles in unmanaged code
1571 * Since we currently have no access to the original
1572 * SafeHandle that was used during the marshalling,
1573 * for now we just ignore this, and ignore/discard any
1574 * changes that might have happened to the handle.
1579 case MONO_MARSHAL_CONV_HANDLEREF: {
1581 * Passing HandleRefs in a struct that is ref()ed does not
1582 * copy the values back to the HandleRef
1587 case MONO_MARSHAL_CONV_STR_BSTR:
1588 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1589 case MONO_MARSHAL_CONV_STR_TBSTR:
1590 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1592 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1594 mono_mb_emit_exception_marshal_directive (mb, msg);
1601 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1604 if (!ind_store_type)
1605 ind_store_type = &dummy;
1606 *ind_store_type = CEE_STIND_I;
1608 case MONO_MARSHAL_CONV_STR_LPWSTR:
1609 return mono_marshal_string_to_utf16;
1610 case MONO_MARSHAL_CONV_LPWSTR_STR:
1611 *ind_store_type = CEE_STIND_REF;
1612 return ves_icall_mono_string_from_utf16;
1613 case MONO_MARSHAL_CONV_LPTSTR_STR:
1614 *ind_store_type = CEE_STIND_REF;
1615 return mono_string_new_wrapper;
1616 case MONO_MARSHAL_CONV_UTF8STR_STR:
1617 case MONO_MARSHAL_CONV_LPSTR_STR:
1618 *ind_store_type = CEE_STIND_REF;
1619 return mono_string_new_wrapper;
1620 case MONO_MARSHAL_CONV_STR_LPTSTR:
1622 return mono_marshal_string_to_utf16;
1624 return mono_string_to_utf8str;
1626 // In Mono historically LPSTR was treated as a UTF8STR
1627 case MONO_MARSHAL_CONV_STR_UTF8STR:
1628 case MONO_MARSHAL_CONV_STR_LPSTR:
1629 return mono_string_to_utf8str;
1630 case MONO_MARSHAL_CONV_STR_BSTR:
1631 return mono_string_to_bstr;
1632 case MONO_MARSHAL_CONV_BSTR_STR:
1633 *ind_store_type = CEE_STIND_REF;
1634 return mono_string_from_bstr_icall;
1635 case MONO_MARSHAL_CONV_STR_TBSTR:
1636 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1637 return mono_string_to_ansibstr;
1638 case MONO_MARSHAL_CONV_SB_UTF8STR:
1639 case MONO_MARSHAL_CONV_SB_LPSTR:
1640 return mono_string_builder_to_utf8;
1641 case MONO_MARSHAL_CONV_SB_LPTSTR:
1643 return mono_string_builder_to_utf16;
1645 return mono_string_builder_to_utf8;
1647 case MONO_MARSHAL_CONV_SB_LPWSTR:
1648 return mono_string_builder_to_utf16;
1649 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1650 return mono_array_to_savearray;
1651 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1652 return mono_array_to_lparray;
1653 case MONO_MARSHAL_FREE_LPARRAY:
1654 return mono_free_lparray;
1655 case MONO_MARSHAL_CONV_DEL_FTN:
1656 return mono_delegate_to_ftnptr;
1657 case MONO_MARSHAL_CONV_FTN_DEL:
1658 *ind_store_type = CEE_STIND_REF;
1659 return mono_ftnptr_to_delegate;
1660 case MONO_MARSHAL_CONV_UTF8STR_SB:
1661 case MONO_MARSHAL_CONV_LPSTR_SB:
1662 *ind_store_type = CEE_STIND_REF;
1663 return mono_string_utf8_to_builder;
1664 case MONO_MARSHAL_CONV_LPTSTR_SB:
1665 *ind_store_type = CEE_STIND_REF;
1667 return mono_string_utf16_to_builder;
1669 return mono_string_utf8_to_builder;
1671 case MONO_MARSHAL_CONV_LPWSTR_SB:
1672 *ind_store_type = CEE_STIND_REF;
1673 return mono_string_utf16_to_builder;
1674 case MONO_MARSHAL_FREE_ARRAY:
1675 return mono_marshal_free_array;
1676 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1677 return mono_string_to_byvalstr;
1678 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1679 return mono_string_to_byvalwstr;
1681 g_assert_not_reached ();
1688 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1694 case MONO_MARSHAL_CONV_BOOL_I4:
1695 mono_mb_emit_ldloc (mb, 1);
1696 mono_mb_emit_ldloc (mb, 0);
1697 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1698 mono_mb_emit_byte (mb, CEE_STIND_I4);
1700 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1701 mono_mb_emit_ldloc (mb, 1);
1702 mono_mb_emit_ldloc (mb, 0);
1703 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1704 mono_mb_emit_byte (mb, CEE_NEG);
1705 mono_mb_emit_byte (mb, CEE_STIND_I2);
1707 // In Mono historically LPSTR was treated as a UTF8STR
1708 case MONO_MARSHAL_CONV_STR_UTF8STR:
1709 case MONO_MARSHAL_CONV_STR_LPWSTR:
1710 case MONO_MARSHAL_CONV_STR_LPSTR:
1711 case MONO_MARSHAL_CONV_STR_LPTSTR:
1712 case MONO_MARSHAL_CONV_STR_BSTR:
1713 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1714 case MONO_MARSHAL_CONV_STR_TBSTR: {
1717 /* free space if free == true */
1718 mono_mb_emit_ldloc (mb, 2);
1719 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1720 mono_mb_emit_ldloc (mb, 1);
1721 mono_mb_emit_byte (mb, CEE_LDIND_I);
1722 mono_mb_emit_icall (mb, g_free);
1723 mono_mb_patch_short_branch (mb, pos);
1725 mono_mb_emit_ldloc (mb, 1);
1726 mono_mb_emit_ldloc (mb, 0);
1727 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1728 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1729 mono_mb_emit_byte (mb, stind_op);
1732 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1733 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1734 case MONO_MARSHAL_CONV_DEL_FTN:
1735 mono_mb_emit_ldloc (mb, 1);
1736 mono_mb_emit_ldloc (mb, 0);
1737 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1738 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1739 mono_mb_emit_byte (mb, stind_op);
1741 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1742 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1745 mono_mb_emit_ldloc (mb, 1); /* dst */
1746 mono_mb_emit_ldloc (mb, 0);
1747 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1748 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1749 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1752 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1753 MonoClass *eklass = NULL;
1756 if (type->type == MONO_TYPE_SZARRAY) {
1757 eklass = type->data.klass;
1759 g_assert_not_reached ();
1762 if (eklass->valuetype)
1763 esize = mono_class_native_size (eklass, NULL);
1765 esize = sizeof (gpointer);
1767 mono_mb_emit_ldloc (mb, 0);
1768 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1769 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1771 if (eklass->blittable) {
1772 mono_mb_emit_ldloc (mb, 1);
1773 mono_mb_emit_ldloc (mb, 0);
1774 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1775 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1776 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1777 mono_mb_emit_byte (mb, CEE_PREFIX1);
1778 mono_mb_emit_byte (mb, CEE_CPBLK);
1780 int array_var, src_var, dst_var, index_var;
1781 guint32 label2, label3;
1783 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1784 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1785 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1788 mono_mb_emit_ldloc (mb, 0);
1789 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1790 mono_mb_emit_stloc (mb, array_var);
1792 /* save the old src pointer */
1793 mono_mb_emit_ldloc (mb, 0);
1794 mono_mb_emit_stloc (mb, src_var);
1795 /* save the old dst pointer */
1796 mono_mb_emit_ldloc (mb, 1);
1797 mono_mb_emit_stloc (mb, dst_var);
1799 /* Emit marshalling loop */
1800 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1801 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1802 mono_mb_emit_stloc (mb, index_var);
1805 label2 = mono_mb_get_label (mb);
1806 mono_mb_emit_ldloc (mb, index_var);
1807 mono_mb_emit_ldloc (mb, array_var);
1808 mono_mb_emit_byte (mb, CEE_LDLEN);
1809 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1812 mono_mb_emit_ldloc (mb, array_var);
1813 mono_mb_emit_ldloc (mb, index_var);
1814 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1815 mono_mb_emit_stloc (mb, 0);
1817 /* dst is already set */
1819 /* Do the conversion */
1820 emit_struct_conv (mb, eklass, FALSE);
1823 mono_mb_emit_add_to_local (mb, index_var, 1);
1825 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1827 mono_mb_patch_branch (mb, label3);
1829 /* restore the old src pointer */
1830 mono_mb_emit_ldloc (mb, src_var);
1831 mono_mb_emit_stloc (mb, 0);
1832 /* restore the old dst pointer */
1833 mono_mb_emit_ldloc (mb, dst_var);
1834 mono_mb_emit_stloc (mb, 1);
1837 mono_mb_patch_branch (mb, pos);
1840 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1841 mono_mb_emit_ldloc (mb, 0);
1842 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1843 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1845 mono_mb_emit_ldloc (mb, 1);
1846 mono_mb_emit_ldloc (mb, 0);
1847 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1848 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1849 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1850 mono_mb_patch_short_branch (mb, pos);
1853 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1854 int src_var, dst_var;
1856 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1857 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1859 mono_mb_emit_ldloc (mb, 0);
1860 mono_mb_emit_byte (mb, CEE_LDIND_I);
1861 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1863 /* save the old src pointer */
1864 mono_mb_emit_ldloc (mb, 0);
1865 mono_mb_emit_stloc (mb, src_var);
1866 /* save the old dst pointer */
1867 mono_mb_emit_ldloc (mb, 1);
1868 mono_mb_emit_stloc (mb, dst_var);
1870 /* src = pointer to object data */
1871 mono_mb_emit_ldloc (mb, 0);
1872 mono_mb_emit_byte (mb, CEE_LDIND_I);
1873 mono_mb_emit_icon (mb, sizeof (MonoObject));
1874 mono_mb_emit_byte (mb, CEE_ADD);
1875 mono_mb_emit_stloc (mb, 0);
1877 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1879 /* restore the old src pointer */
1880 mono_mb_emit_ldloc (mb, src_var);
1881 mono_mb_emit_stloc (mb, 0);
1882 /* restore the old dst pointer */
1883 mono_mb_emit_ldloc (mb, dst_var);
1884 mono_mb_emit_stloc (mb, 1);
1886 mono_mb_patch_branch (mb, pos);
1891 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1892 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1893 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1894 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1896 #endif /* DISABLE_COM */
1898 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1901 mono_mb_emit_ldloc (mb, 0);
1902 mono_mb_emit_byte (mb, CEE_LDIND_I);
1903 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1904 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1905 mono_mb_patch_branch (mb, pos);
1907 /* Pull the handle field from SafeHandle */
1908 mono_mb_emit_ldloc (mb, 1);
1909 mono_mb_emit_ldloc (mb, 0);
1910 mono_mb_emit_byte (mb, CEE_LDIND_I);
1911 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1912 mono_mb_emit_byte (mb, CEE_LDIND_I);
1913 mono_mb_emit_byte (mb, CEE_STIND_I);
1917 case MONO_MARSHAL_CONV_HANDLEREF: {
1918 mono_mb_emit_ldloc (mb, 1);
1919 mono_mb_emit_ldloc (mb, 0);
1920 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1921 mono_mb_emit_byte (mb, CEE_ADD);
1922 mono_mb_emit_byte (mb, CEE_LDIND_I);
1923 mono_mb_emit_byte (mb, CEE_STIND_I);
1928 g_error ("marshalling conversion %d not implemented", conv);
1934 offset_of_first_nonstatic_field (MonoClass *klass)
1937 int fcount = mono_class_get_field_count (klass);
1938 mono_class_setup_fields (klass);
1939 for (i = 0; i < fcount; i++) {
1940 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
1941 return klass->fields[i].offset - sizeof (MonoObject);
1948 get_fixed_buffer_attr (MonoClassField *field, MonoType **out_etype, int *out_len)
1951 MonoCustomAttrInfo *cinfo;
1952 MonoCustomAttrEntry *attr;
1955 cinfo = mono_custom_attrs_from_field_checked (field->parent, field, &error);
1956 if (!is_ok (&error))
1960 for (aindex = 0; aindex < cinfo->num_attrs; ++aindex) {
1961 MonoClass *ctor_class = cinfo->attrs [aindex].ctor->klass;
1962 if (mono_class_has_parent (ctor_class, mono_class_get_fixed_buffer_attribute_class ())) {
1963 attr = &cinfo->attrs [aindex];
1969 MonoArray *typed_args, *named_args;
1970 CattrNamedArg *arginfo;
1973 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
1974 if (!is_ok (&error))
1976 g_assert (mono_array_length (typed_args) == 2);
1979 o = mono_array_get (typed_args, MonoObject*, 0);
1980 *out_etype = monotype_cast (o)->type;
1981 o = mono_array_get (typed_args, MonoObject*, 1);
1982 g_assert (o->vtable->klass == mono_defaults.int32_class);
1983 *out_len = *(gint32*)mono_object_unbox (o);
1986 if (cinfo && !cinfo->cached)
1987 mono_custom_attrs_free (cinfo);
1988 return attr != NULL;
1992 emit_fixed_buf_conv (MonoMethodBuilder *mb, MonoType *type, MonoType *etype, int len, gboolean to_object, int *out_usize)
1994 MonoClass *klass = mono_class_from_mono_type (type);
1995 MonoClass *eklass = mono_class_from_mono_type (etype);
1998 esize = mono_class_native_size (eklass, NULL);
2000 MonoMarshalNative string_encoding = klass->unicode ? MONO_NATIVE_LPWSTR : MONO_NATIVE_LPSTR;
2001 int usize = mono_class_value_size (eklass, NULL);
2002 int msize = mono_class_value_size (eklass, NULL);
2004 //printf ("FIXED: %s %d %d\n", mono_type_full_name (type), eklass->blittable, string_encoding);
2006 if (eklass->blittable) {
2007 /* copy the elements */
2008 mono_mb_emit_ldloc (mb, 1);
2009 mono_mb_emit_ldloc (mb, 0);
2010 mono_mb_emit_icon (mb, len * esize);
2011 mono_mb_emit_byte (mb, CEE_PREFIX1);
2012 mono_mb_emit_byte (mb, CEE_CPBLK);
2015 guint32 label2, label3;
2017 /* Emit marshalling loop */
2018 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2019 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2020 mono_mb_emit_stloc (mb, index_var);
2023 label2 = mono_mb_get_label (mb);
2024 mono_mb_emit_ldloc (mb, index_var);
2025 mono_mb_emit_icon (mb, len);
2026 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2028 /* src/dst is already set */
2030 /* Do the conversion */
2031 MonoTypeEnum t = etype->type;
2037 case MONO_TYPE_BOOLEAN:
2040 case MONO_TYPE_CHAR:
2046 mono_mb_emit_ldloc (mb, 1);
2047 mono_mb_emit_ldloc (mb, 0);
2048 if (t == MONO_TYPE_CHAR && string_encoding != MONO_NATIVE_LPWSTR) {
2050 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2051 mono_mb_emit_byte (mb, CEE_STIND_I2);
2053 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2054 mono_mb_emit_byte (mb, CEE_STIND_I1);
2058 mono_mb_emit_byte (mb, mono_type_to_ldind (etype));
2059 mono_mb_emit_byte (mb, mono_type_to_stind (etype));
2063 g_assert_not_reached ();
2068 mono_mb_emit_add_to_local (mb, 0, usize);
2069 mono_mb_emit_add_to_local (mb, 1, msize);
2071 mono_mb_emit_add_to_local (mb, 0, msize);
2072 mono_mb_emit_add_to_local (mb, 1, usize);
2076 mono_mb_emit_add_to_local (mb, index_var, 1);
2078 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2080 mono_mb_patch_branch (mb, label3);
2083 *out_usize = usize * len;
2087 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
2088 int offset_of_first_child_field, MonoMarshalNative string_encoding)
2090 MonoMarshalType *info;
2094 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
2096 info = mono_marshal_load_type_info (klass);
2098 if (info->native_size == 0)
2101 if (klass->blittable) {
2102 int usize = mono_class_value_size (klass, NULL);
2103 g_assert (usize == info->native_size);
2104 mono_mb_emit_ldloc (mb, 1);
2105 mono_mb_emit_ldloc (mb, 0);
2106 mono_mb_emit_icon (mb, usize);
2107 mono_mb_emit_byte (mb, CEE_PREFIX1);
2108 mono_mb_emit_byte (mb, CEE_CPBLK);
2111 mono_mb_emit_add_to_local (mb, 0, usize);
2112 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
2114 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
2115 mono_mb_emit_add_to_local (mb, 1, usize);
2120 if (klass != mono_class_try_get_safehandle_class ()) {
2121 if (mono_class_is_auto_layout (klass)) {
2122 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
2123 mono_type_full_name (&klass->byval_arg));
2124 mono_mb_emit_exception_marshal_directive (mb, msg);
2129 for (i = 0; i < info->num_fields; i++) {
2130 MonoMarshalNative ntype;
2131 MonoMarshalConv conv;
2132 MonoType *ftype = info->fields [i].field->type;
2135 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2137 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2140 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2143 msize = klass->instance_size - info->fields [i].field->offset;
2144 usize = info->native_size - info->fields [i].offset;
2146 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2147 usize = info->fields [i + 1].offset - info->fields [i].offset;
2150 if (klass != mono_class_try_get_safehandle_class ()){
2152 * FIXME: Should really check for usize==0 and msize>0, but we apply
2153 * the layout to the managed structure as well.
2156 if (mono_class_is_explicit_layout (klass) && (usize == 0)) {
2157 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2158 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2159 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2160 "reference field at the same offset as another field.",
2161 mono_type_full_name (&klass->byval_arg));
2166 case MONO_MARSHAL_CONV_NONE: {
2169 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2170 g_assert (!ftype->byref);
2171 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2172 mono_mb_emit_ldloc (mb, 1);
2173 mono_mb_emit_ldloc (mb, 0);
2174 mono_mb_emit_byte (mb, CEE_LDIND_I);
2175 mono_mb_emit_byte (mb, CEE_STIND_I);
2186 case MONO_TYPE_BOOLEAN:
2189 case MONO_TYPE_CHAR:
2195 mono_mb_emit_ldloc (mb, 1);
2196 mono_mb_emit_ldloc (mb, 0);
2197 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2199 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2200 mono_mb_emit_byte (mb, CEE_STIND_I2);
2202 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2203 mono_mb_emit_byte (mb, CEE_STIND_I1);
2206 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2207 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2210 case MONO_TYPE_VALUETYPE: {
2211 int src_var, dst_var;
2215 if (ftype->data.klass->enumtype) {
2216 ftype = mono_class_enum_basetype (ftype->data.klass);
2220 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2221 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2223 /* save the old src pointer */
2224 mono_mb_emit_ldloc (mb, 0);
2225 mono_mb_emit_stloc (mb, src_var);
2226 /* save the old dst pointer */
2227 mono_mb_emit_ldloc (mb, 1);
2228 mono_mb_emit_stloc (mb, dst_var);
2230 if (get_fixed_buffer_attr (info->fields [i].field, &etype, &len)) {
2231 emit_fixed_buf_conv (mb, ftype, etype, len, to_object, &usize);
2233 emit_struct_conv (mb, ftype->data.klass, to_object);
2236 /* restore the old src pointer */
2237 mono_mb_emit_ldloc (mb, src_var);
2238 mono_mb_emit_stloc (mb, 0);
2239 /* restore the old dst pointer */
2240 mono_mb_emit_ldloc (mb, dst_var);
2241 mono_mb_emit_stloc (mb, 1);
2244 case MONO_TYPE_OBJECT: {
2247 static MonoMethod *variant_clear = NULL;
2248 static MonoMethod *get_object_for_native_variant = NULL;
2251 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2252 if (!get_object_for_native_variant)
2253 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2254 mono_mb_emit_ldloc (mb, 1);
2255 mono_mb_emit_ldloc (mb, 0);
2256 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2257 mono_mb_emit_byte (mb, CEE_STIND_REF);
2259 mono_mb_emit_ldloc (mb, 0);
2260 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2263 static MonoMethod *get_native_variant_for_object = NULL;
2265 if (!get_native_variant_for_object)
2266 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2268 mono_mb_emit_ldloc (mb, 0);
2269 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2270 mono_mb_emit_ldloc (mb, 1);
2271 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2274 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2275 mono_mb_emit_exception_marshal_directive (mb, msg);
2281 g_warning ("marshaling type %02x not implemented", ftype->type);
2282 g_assert_not_reached ();
2287 int src_var, dst_var;
2289 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2290 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2292 /* save the old src pointer */
2293 mono_mb_emit_ldloc (mb, 0);
2294 mono_mb_emit_stloc (mb, src_var);
2295 /* save the old dst pointer */
2296 mono_mb_emit_ldloc (mb, 1);
2297 mono_mb_emit_stloc (mb, dst_var);
2300 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2302 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2304 /* restore the old src pointer */
2305 mono_mb_emit_ldloc (mb, src_var);
2306 mono_mb_emit_stloc (mb, 0);
2307 /* restore the old dst pointer */
2308 mono_mb_emit_ldloc (mb, dst_var);
2309 mono_mb_emit_stloc (mb, 1);
2314 mono_mb_emit_add_to_local (mb, 0, usize);
2315 mono_mb_emit_add_to_local (mb, 1, msize);
2317 mono_mb_emit_add_to_local (mb, 0, msize);
2318 mono_mb_emit_add_to_local (mb, 1, usize);
2324 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2326 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2330 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2332 /* Call DestroyStructure */
2333 /* FIXME: Only do this if needed */
2334 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2335 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2336 mono_mb_emit_ldloc (mb, struct_var);
2337 mono_mb_emit_icall (mb, mono_struct_delete_old);
2341 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2343 int pos_noabort, pos_noex;
2345 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2346 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2347 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2348 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2350 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2351 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2353 mono_mb_emit_icall (mb, checkpoint_func);
2354 /* Throw the exception returned by the checkpoint function, if any */
2355 mono_mb_emit_byte (mb, CEE_DUP);
2356 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2357 mono_mb_emit_byte (mb, CEE_THROW);
2358 mono_mb_patch_branch (mb, pos_noex);
2359 mono_mb_emit_byte (mb, CEE_POP);
2361 mono_mb_patch_branch (mb, pos_noabort);
2365 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2367 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2370 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2374 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2376 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2380 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2382 emit_thread_interrupt_checkpoint (mb);
2386 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2388 emit_thread_force_interrupt_checkpoint (mb);
2391 #endif /* DISABLE_JIT */
2393 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2394 static MonoAsyncResult *
2395 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2398 MonoMulticastDelegate *mcast_delegate;
2402 g_assert (delegate);
2403 mcast_delegate = (MonoMulticastDelegate *) delegate;
2404 if (mcast_delegate->delegates != NULL) {
2405 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2409 #ifndef DISABLE_REMOTING
2410 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2411 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2412 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2413 /* If the target is a proxy, make a direct call. Is proxy's work
2414 // to make the call asynchronous.
2416 MonoMethodMessage *msg;
2417 MonoDelegate *async_callback;
2419 MonoAsyncResult *ares;
2421 MonoArray *out_args;
2422 method = delegate->method;
2424 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2425 if (mono_error_set_pending_exception (&error))
2427 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2428 if (mono_error_set_pending_exception (&error))
2430 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2431 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2432 MONO_OBJECT_SETREF (msg, async_result, ares);
2433 msg->call_type = CallType_BeginInvoke;
2436 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2437 if (!mono_error_ok (&error)) {
2438 mono_error_set_pending_exception (&error);
2442 mono_set_pending_exception ((MonoException *) exc);
2448 klass = delegate->object.vtable->klass;
2450 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2452 method = mono_get_delegate_invoke (klass);
2455 MonoAsyncResult *result = mono_threadpool_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2456 mono_error_set_pending_exception (&error);
2463 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2465 int i, params_var, tmp_var;
2467 /* allocate local (pointer) *params[] */
2468 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2469 /* allocate local (pointer) tmp */
2470 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2472 /* alloate space on stack to store an array of pointers to the arguments */
2473 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2474 mono_mb_emit_byte (mb, CEE_PREFIX1);
2475 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2476 mono_mb_emit_stloc (mb, params_var);
2479 mono_mb_emit_ldloc (mb, params_var);
2480 mono_mb_emit_stloc (mb, tmp_var);
2482 if (save_this && sig->hasthis) {
2483 mono_mb_emit_ldloc (mb, tmp_var);
2484 mono_mb_emit_ldarg_addr (mb, 0);
2485 mono_mb_emit_byte (mb, CEE_STIND_I);
2486 /* tmp = tmp + sizeof (gpointer) */
2487 if (sig->param_count)
2488 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2492 for (i = 0; i < sig->param_count; i++) {
2493 mono_mb_emit_ldloc (mb, tmp_var);
2494 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2495 mono_mb_emit_byte (mb, CEE_STIND_I);
2496 /* tmp = tmp + sizeof (gpointer) */
2497 if (i < (sig->param_count - 1))
2498 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2504 #endif /* DISABLE_JIT */
2507 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2511 GString *res = g_string_new ("");
2514 g_string_append (res, prefix);
2515 g_string_append_c (res, '_');
2518 mono_type_get_desc (res, sig->ret, FALSE);
2521 g_string_append (res, "__this__");
2523 for (i = 0; i < sig->param_count; ++i) {
2524 g_string_append_c (res, '_');
2525 mono_type_get_desc (res, sig->params [i], FALSE);
2528 g_string_free (res, FALSE);
2533 * mono_marshal_get_string_encoding:
2535 * Return the string encoding which should be used for a given parameter.
2537 static MonoMarshalNative
2538 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2540 /* First try the parameter marshal info */
2542 if (spec->native == MONO_NATIVE_LPARRAY) {
2543 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2544 return spec->data.array_data.elem_type;
2547 return spec->native;
2551 return MONO_NATIVE_LPSTR;
2553 /* Then try the method level marshal info */
2554 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2555 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2556 return MONO_NATIVE_LPSTR;
2557 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2558 return MONO_NATIVE_LPWSTR;
2559 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2561 return MONO_NATIVE_LPWSTR;
2563 return MONO_NATIVE_LPSTR;
2566 return MONO_NATIVE_LPSTR;
2570 static MonoMarshalConv
2571 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2573 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2576 case MONO_NATIVE_LPWSTR:
2577 return MONO_MARSHAL_CONV_STR_LPWSTR;
2578 case MONO_NATIVE_LPSTR:
2579 case MONO_NATIVE_VBBYREFSTR:
2580 return MONO_MARSHAL_CONV_STR_LPSTR;
2581 case MONO_NATIVE_LPTSTR:
2582 return MONO_MARSHAL_CONV_STR_LPTSTR;
2583 case MONO_NATIVE_BSTR:
2584 return MONO_MARSHAL_CONV_STR_BSTR;
2585 case MONO_NATIVE_UTF8STR:
2586 return MONO_MARSHAL_CONV_STR_UTF8STR;
2588 return MONO_MARSHAL_CONV_INVALID;
2592 static MonoMarshalConv
2593 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2595 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2598 case MONO_NATIVE_LPWSTR:
2599 return MONO_MARSHAL_CONV_SB_LPWSTR;
2600 case MONO_NATIVE_LPSTR:
2601 return MONO_MARSHAL_CONV_SB_LPSTR;
2602 case MONO_NATIVE_UTF8STR:
2603 return MONO_MARSHAL_CONV_SB_UTF8STR;
2604 case MONO_NATIVE_LPTSTR:
2605 return MONO_MARSHAL_CONV_SB_LPTSTR;
2607 return MONO_MARSHAL_CONV_INVALID;
2611 static MonoMarshalConv
2612 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2614 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2619 case MONO_NATIVE_LPWSTR:
2621 return MONO_MARSHAL_CONV_LPWSTR_STR;
2622 case MONO_NATIVE_UTF8STR:
2623 return MONO_MARSHAL_CONV_UTF8STR_STR;
2624 case MONO_NATIVE_LPSTR:
2625 case MONO_NATIVE_VBBYREFSTR:
2626 return MONO_MARSHAL_CONV_LPSTR_STR;
2627 case MONO_NATIVE_LPTSTR:
2631 return MONO_MARSHAL_CONV_LPTSTR_STR;
2632 case MONO_NATIVE_BSTR:
2633 return MONO_MARSHAL_CONV_BSTR_STR;
2635 return MONO_MARSHAL_CONV_INVALID;
2639 static MonoMarshalConv
2640 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2642 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2647 case MONO_NATIVE_LPWSTR:
2649 * mono_string_builder_to_utf16 does not allocate a
2650 * new buffer, so no need to free it.
2653 return MONO_MARSHAL_CONV_LPWSTR_SB;
2654 case MONO_NATIVE_UTF8STR:
2655 return MONO_MARSHAL_CONV_UTF8STR_SB;
2656 case MONO_NATIVE_LPSTR:
2657 return MONO_MARSHAL_CONV_LPSTR_SB;
2659 case MONO_NATIVE_LPTSTR:
2660 return MONO_MARSHAL_CONV_LPTSTR_SB;
2663 return MONO_MARSHAL_CONV_INVALID;
2668 * Return whenever a field of a native structure or an array member needs to
2672 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2674 MonoMarshalNative encoding;
2677 case MONO_TYPE_VALUETYPE:
2678 /* FIXME: Optimize this */
2680 case MONO_TYPE_OBJECT:
2681 case MONO_TYPE_CLASS:
2682 if (t->data.klass == mono_defaults.stringbuilder_class) {
2684 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2688 case MONO_TYPE_STRING:
2689 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2690 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2697 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2700 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2703 mono_marshal_lock ();
2706 g_hash_table_new (hash_func, equal_func);
2707 mono_memory_barrier ();
2710 mono_marshal_unlock ();
2716 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2718 return get_cache (var, hash_func, equal_func);
2722 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2726 mono_marshal_lock ();
2727 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2728 mono_marshal_unlock ();
2735 * Create a MonoMethod from MB, set INFO as wrapper info.
2738 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2739 int max_stack, WrapperInfo *info)
2743 res = mono_mb_create_method (mb, sig, max_stack);
2745 mono_marshal_set_wrapper_info (res, info);
2749 /* Create the method from the builder and place it in the cache */
2751 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2752 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2753 int max_stack, WrapperInfo *info, gboolean *out_found)
2760 mono_marshal_lock ();
2761 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2762 mono_marshal_unlock ();
2765 newm = mono_mb_create_method (mb, sig, max_stack);
2766 mono_marshal_lock ();
2767 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2770 g_hash_table_insert (cache, key, res);
2771 mono_marshal_set_wrapper_info (res, info);
2772 mono_marshal_unlock ();
2776 mono_marshal_unlock ();
2777 mono_free_method (newm);
2785 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2786 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2789 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2793 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2796 int wrapper_type = wrapper->wrapper_type;
2799 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2802 info = mono_marshal_get_wrapper_info (wrapper);
2804 switch (wrapper_type) {
2805 case MONO_WRAPPER_REMOTING_INVOKE:
2806 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2807 case MONO_WRAPPER_XDOMAIN_INVOKE:
2808 m = info->d.remoting.method;
2809 if (wrapper->is_inflated) {
2813 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2814 * contains an uninflated method.
2816 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2817 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2821 case MONO_WRAPPER_SYNCHRONIZED:
2822 m = info->d.synchronized.method;
2823 if (wrapper->is_inflated) {
2826 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2827 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2831 case MONO_WRAPPER_UNBOX:
2832 return info->d.unbox.method;
2833 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2834 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2835 return info->d.managed_to_native.method;
2838 case MONO_WRAPPER_RUNTIME_INVOKE:
2839 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2840 return info->d.runtime_invoke.method;
2843 case MONO_WRAPPER_DELEGATE_INVOKE:
2845 return info->d.delegate_invoke.method;
2854 * mono_marshal_get_wrapper_info:
2856 * Retrieve the WrapperInfo structure associated with WRAPPER.
2859 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2861 g_assert (wrapper->wrapper_type);
2863 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2867 * mono_marshal_set_wrapper_info:
2869 * Set the WrapperInfo structure associated with the wrapper
2870 * method METHOD to INFO.
2873 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2877 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2880 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2885 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2889 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2890 info->subtype = subtype;
2895 * get_wrapper_target_class:
2897 * Return the class where a wrapper method should be placed.
2900 get_wrapper_target_class (MonoImage *image)
2907 * - can't put all wrappers into an mscorlib class, because they reference
2908 * metadata (signature) so they should be put into the same image as the
2909 * method they wrap, so they are unloaded together.
2910 * - putting them into a class with a type initalizer could cause the
2911 * initializer to be executed which can be a problem if the wrappers are
2913 * - putting them into an inflated class can cause problems if the the
2914 * class is deleted because it references an image which is unloaded.
2915 * To avoid these problems, we put the wrappers into the <Module> class of
2918 if (image_is_dynamic (image)) {
2919 klass = ((MonoDynamicImage*)image)->wrappers_type;
2921 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2922 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2930 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2931 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2935 * check_generic_wrapper_cache:
2937 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2938 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2939 * generic method definition.
2942 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2945 MonoMethod *inst, *def;
2946 MonoGenericContext *ctx;
2948 g_assert (orig_method->is_inflated);
2949 ctx = mono_method_get_context (orig_method);
2952 * Look for the instance
2954 res = mono_marshal_find_in_cache (cache, key);
2959 * Look for the definition
2961 def = mono_marshal_find_in_cache (cache, def_key);
2964 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2965 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2967 mono_memory_barrier ();
2968 mono_marshal_lock ();
2969 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2971 g_hash_table_insert (cache, key, inst);
2974 mono_marshal_unlock ();
2981 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2984 MonoMethod *inst, *res;
2987 * We use the same cache for the generic definition and the instances.
2989 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2990 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2991 mono_memory_barrier ();
2992 mono_marshal_lock ();
2993 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2995 g_hash_table_insert (cache, key, inst);
2998 mono_marshal_unlock ();
3003 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
3007 MonoMethod *inst, *def;
3010 * Look for the instance
3012 res = mono_marshal_find_in_cache (cache, orig_method->klass);
3017 * Look for the definition
3019 def = mono_marshal_find_in_cache (cache, def_method->klass);
3021 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3022 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3025 mono_memory_barrier ();
3026 mono_marshal_lock ();
3027 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3029 g_hash_table_insert (cache, orig_method->klass, inst);
3032 mono_marshal_unlock ();
3039 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
3042 MonoMethod *inst, *res;
3043 WrapperInfo *ginfo, *info;
3046 * We use the same cache for the generic definition and the instances.
3048 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3049 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3051 ginfo = mono_marshal_get_wrapper_info (def);
3053 info = (WrapperInfo *)mono_image_alloc0 (def->klass->image, sizeof (WrapperInfo));
3054 info->subtype = ginfo->subtype;
3055 if (info->subtype == WRAPPER_SUBTYPE_NONE) {
3056 info->d.delegate_invoke.method = mono_class_inflate_generic_method_checked (ginfo->d.delegate_invoke.method, ctx, &error);
3057 mono_error_assert_ok (&error);
3061 mono_memory_barrier ();
3062 mono_marshal_lock ();
3063 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3065 g_hash_table_insert (cache, orig_method->klass, inst);
3068 mono_marshal_unlock ();
3073 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
3075 MonoMethodSignature *sig;
3076 MonoMethodBuilder *mb;
3081 MonoGenericContext *ctx = NULL;
3082 MonoMethod *orig_method = NULL;
3084 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3085 !strcmp (method->name, "BeginInvoke"));
3088 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3090 if (method->is_inflated) {
3091 orig_method = method;
3092 ctx = &((MonoMethodInflated*)method)->context;
3093 method = ((MonoMethodInflated*)method)->declaring;
3096 sig = mono_signature_no_pinvoke (method);
3102 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
3103 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3107 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
3108 (GHashFunc)mono_signature_hash,
3109 (GCompareFunc)mono_metadata_signature_equal);
3110 if ((res = mono_marshal_find_in_cache (cache, sig)))
3114 g_assert (sig->hasthis);
3116 name = mono_signature_to_name (sig, "begin_invoke");
3118 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3120 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3124 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3126 mono_mb_emit_ldarg (mb, 0);
3127 mono_mb_emit_ldloc (mb, params_var);
3128 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3129 mono_mb_emit_byte (mb, CEE_RET);
3134 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3135 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3137 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3144 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
3146 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3149 MonoDomain *domain = mono_domain_get ();
3150 MonoAsyncResult *ares;
3151 MonoMethod *method = NULL;
3152 MonoMethodSignature *sig;
3153 MonoMethodMessage *msg;
3154 MonoObject *res, *exc;
3155 MonoArray *out_args;
3158 g_assert (delegate);
3160 if (!delegate->method_info) {
3161 g_assert (delegate->method);
3162 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
3163 if (!mono_error_ok (&error)) {
3164 mono_error_set_pending_exception (&error);
3167 MONO_OBJECT_SETREF (delegate, method_info, rm);
3170 if (!delegate->method_info || !delegate->method_info->method)
3171 g_assert_not_reached ();
3173 klass = delegate->object.vtable->klass;
3175 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3176 g_assert (method != NULL);
3178 sig = mono_signature_no_pinvoke (method);
3180 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3181 if (mono_error_set_pending_exception (&error))
3184 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3186 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."));
3190 if (ares->async_delegate != (MonoObject*)delegate) {
3191 mono_set_pending_exception (mono_get_exception_invalid_operation (
3192 "The IAsyncResult object provided does not match this delegate."));
3196 #ifndef DISABLE_REMOTING
3197 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3198 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3199 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3200 if (!mono_error_ok (&error)) {
3201 mono_error_set_pending_exception (&error);
3204 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3205 if (mono_error_set_pending_exception (&error))
3207 msg->call_type = CallType_EndInvoke;
3208 MONO_OBJECT_SETREF (msg, async_result, ares);
3209 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3210 if (!mono_error_ok (&error)) {
3211 mono_error_set_pending_exception (&error);
3217 res = mono_threadpool_end_invoke (ares, &out_args, &exc, &error);
3218 if (mono_error_set_pending_exception (&error))
3223 if (((MonoException*)exc)->stack_trace) {
3224 MonoError inner_error;
3225 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3226 if (is_ok (&inner_error)) {
3228 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3230 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3233 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3235 mono_set_pending_exception ((MonoException*)exc);
3238 mono_method_return_message_restore (method, params, out_args, &error);
3239 mono_error_set_pending_exception (&error);
3246 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3248 MonoType *t = mono_type_get_underlying_type (return_type);
3250 if (return_type->byref)
3251 return_type = &mono_defaults.int_class->byval_arg;
3254 case MONO_TYPE_VOID:
3255 g_assert_not_reached ();
3258 case MONO_TYPE_STRING:
3259 case MONO_TYPE_CLASS:
3260 case MONO_TYPE_OBJECT:
3261 case MONO_TYPE_ARRAY:
3262 case MONO_TYPE_SZARRAY:
3266 case MONO_TYPE_BOOLEAN:
3269 case MONO_TYPE_CHAR:
3279 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3280 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3282 case MONO_TYPE_GENERICINST:
3283 if (!mono_type_generic_inst_is_valuetype (t))
3286 case MONO_TYPE_VALUETYPE: {
3287 MonoClass *klass = mono_class_from_mono_type (return_type);
3288 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3289 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3293 case MONO_TYPE_MVAR: {
3294 MonoClass *klass = mono_class_from_mono_type (return_type);
3295 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3299 g_warning ("type 0x%x not handled", return_type->type);
3300 g_assert_not_reached ();
3303 mono_mb_emit_byte (mb, CEE_RET);
3306 #endif /* DISABLE_JIT */
3309 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3311 MonoMethodSignature *sig;
3312 MonoMethodBuilder *mb;
3317 MonoGenericContext *ctx = NULL;
3318 MonoMethod *orig_method = NULL;
3320 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3321 !strcmp (method->name, "EndInvoke"));
3324 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3326 if (method->is_inflated) {
3327 orig_method = method;
3328 ctx = &((MonoMethodInflated*)method)->context;
3329 method = ((MonoMethodInflated*)method)->declaring;
3332 sig = mono_signature_no_pinvoke (method);
3338 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3339 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3343 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3344 (GHashFunc)mono_signature_hash,
3345 (GCompareFunc)mono_metadata_signature_equal);
3346 if ((res = mono_marshal_find_in_cache (cache, sig)))
3350 g_assert (sig->hasthis);
3352 name = mono_signature_to_name (sig, "end_invoke");
3354 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3356 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3360 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3362 mono_mb_emit_ldarg (mb, 0);
3363 mono_mb_emit_ldloc (mb, params_var);
3364 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3366 if (sig->ret->type == MONO_TYPE_VOID) {
3367 mono_mb_emit_byte (mb, CEE_POP);
3368 mono_mb_emit_byte (mb, CEE_RET);
3370 mono_mb_emit_restore_result (mb, sig->ret);
3375 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3376 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3378 res = mono_mb_create_and_cache (cache, sig,
3379 mb, sig, sig->param_count + 16);
3388 MonoMethodSignature *sig;
3390 } SignaturePointerPair;
3393 signature_pointer_pair_hash (gconstpointer data)
3395 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3397 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3401 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3403 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3404 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3408 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3410 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3412 return pair->pointer == user_data;
3416 free_signature_pointer_pair (SignaturePointerPair *pair)
3422 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3424 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3426 MonoMethodBuilder *mb;
3429 gpointer cache_key = NULL;
3430 SignaturePointerPair key = { NULL, NULL };
3431 SignaturePointerPair *new_key;
3432 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3433 int pos0, pos1, pos2;
3435 MonoClass *target_class = NULL;
3436 gboolean closed_over_null = FALSE;
3437 MonoGenericContext *ctx = NULL;
3438 MonoGenericContainer *container = NULL;
3439 MonoMethod *orig_method = method;
3441 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3445 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3446 !strcmp (method->name, "Invoke"));
3448 invoke_sig = sig = mono_signature_no_pinvoke (method);
3451 * If the delegate target is null, and the target method is not static, a virtual
3452 * call is made to that method with the first delegate argument as this. This is
3453 * a non-documented .NET feature.
3456 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3457 if (target_method->is_inflated) {
3459 MonoType *target_type;
3461 g_assert (method->signature->hasthis);
3462 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3463 mono_method_get_context (method), &error);
3464 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3465 target_class = mono_class_from_mono_type (target_type);
3467 target_class = target_method->klass;
3470 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3473 if (static_method_with_first_arg_bound) {
3474 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3475 g_assert (!callvirt);
3476 invoke_sig = mono_method_signature (target_method);
3480 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3482 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3483 ctx = &((MonoMethodInflated*)method)->context;
3484 method = ((MonoMethodInflated*)method)->declaring;
3486 container = mono_method_get_generic_container (method);
3488 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
3489 g_assert (container);
3491 invoke_sig = sig = mono_signature_no_pinvoke (method);
3498 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3499 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3502 cache_key = method->klass;
3503 } else if (static_method_with_first_arg_bound) {
3504 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3505 (GHashFunc)mono_signature_hash,
3506 (GCompareFunc)mono_metadata_signature_equal);
3508 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3510 res = mono_marshal_find_in_cache (cache, invoke_sig);
3513 cache_key = invoke_sig;
3514 } else if (callvirt) {
3515 GHashTable **cache_ptr;
3517 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3519 /* We need to cache the signature+method pair */
3520 mono_marshal_lock ();
3522 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3524 key.sig = invoke_sig;
3525 key.pointer = target_method;
3526 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3527 mono_marshal_unlock ();
3531 // Inflated methods should not be in this cache because it's not stored on the imageset.
3532 g_assert (!method->is_inflated);
3533 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3534 (GHashFunc)mono_signature_hash,
3535 (GCompareFunc)mono_metadata_signature_equal);
3536 res = mono_marshal_find_in_cache (cache, sig);
3542 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3543 static_sig->hasthis = 0;
3544 if (!static_method_with_first_arg_bound)
3545 invoke_sig = static_sig;
3547 if (static_method_with_first_arg_bound)
3548 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3549 else if (closed_over_null)
3550 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3552 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3554 name = mono_signature_to_name (invoke_sig, "invoke");
3556 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3558 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3562 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3564 /* allocate local 0 (object) */
3565 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3566 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3567 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3568 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3569 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3572 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3574 g_assert (sig->hasthis);
3577 * {type: sig->ret} res;
3578 * if (delegates == null) {
3579 * return this.<target> ( args .. );
3581 * int i = 0, len = this.delegates.Length;
3583 * res = this.delegates [i].Invoke ( args .. );
3584 * } while (++i < len);
3589 /* this wrapper can be used in unmanaged-managed transitions */
3590 emit_thread_interrupt_checkpoint (mb);
3592 /* delegates = this.delegates */
3593 mono_mb_emit_ldarg (mb, 0);
3594 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3595 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3596 mono_mb_emit_stloc (mb, local_delegates);
3598 /* if (delegates == null) */
3599 mono_mb_emit_ldloc (mb, local_delegates);
3600 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3602 /* return target.<target_method|method_ptr> ( args .. ); */
3604 /* target = d.target; */
3605 mono_mb_emit_ldarg (mb, 0);
3606 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3607 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3608 mono_mb_emit_stloc (mb, local_target);
3610 /*static methods with bound first arg can have null target and still be bound*/
3611 if (!static_method_with_first_arg_bound) {
3612 /* if target != null */
3613 mono_mb_emit_ldloc (mb, local_target);
3614 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3616 /* then call this->method_ptr nonstatic */
3619 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3621 mono_mb_emit_ldloc (mb, local_target);
3622 for (i = 0; i < sig->param_count; ++i)
3623 mono_mb_emit_ldarg (mb, i + 1);
3624 mono_mb_emit_ldarg (mb, 0);
3625 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3626 mono_mb_emit_byte (mb, CEE_LDIND_I);
3627 mono_mb_emit_ldarg (mb, 0);
3628 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3629 mono_mb_emit_byte (mb, CEE_LDIND_I);
3630 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3631 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3632 mono_mb_emit_byte (mb, CEE_RET);
3635 /* else [target == null] call this->method_ptr static */
3636 mono_mb_patch_branch (mb, pos0);
3640 if (!closed_over_null) {
3641 if (target_class->valuetype) {
3642 mono_mb_emit_ldarg (mb, 1);
3643 for (i = 1; i < sig->param_count; ++i)
3644 mono_mb_emit_ldarg (mb, i + 1);
3645 mono_mb_emit_op (mb, CEE_CALL, target_method);
3647 mono_mb_emit_ldarg (mb, 1);
3648 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3649 for (i = 1; i < sig->param_count; ++i)
3650 mono_mb_emit_ldarg (mb, i + 1);
3651 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3654 mono_mb_emit_byte (mb, CEE_LDNULL);
3655 for (i = 0; i < sig->param_count; ++i)
3656 mono_mb_emit_ldarg (mb, i + 1);
3657 mono_mb_emit_op (mb, CEE_CALL, target_method);
3660 if (static_method_with_first_arg_bound) {
3661 mono_mb_emit_ldloc (mb, local_target);
3662 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3663 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3665 for (i = 0; i < sig->param_count; ++i)
3666 mono_mb_emit_ldarg (mb, i + 1);
3667 mono_mb_emit_ldarg (mb, 0);
3668 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3669 mono_mb_emit_byte (mb, CEE_LDIND_I);
3670 mono_mb_emit_ldarg (mb, 0);
3671 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3672 mono_mb_emit_byte (mb, CEE_LDIND_I);
3673 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3674 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3677 mono_mb_emit_byte (mb, CEE_RET);
3679 /* else [delegates != null] */
3680 mono_mb_patch_branch (mb, pos2);
3682 /* len = delegates.Length; */
3683 mono_mb_emit_ldloc (mb, local_delegates);
3684 mono_mb_emit_byte (mb, CEE_LDLEN);
3685 mono_mb_emit_byte (mb, CEE_CONV_I4);
3686 mono_mb_emit_stloc (mb, local_len);
3689 mono_mb_emit_icon (mb, 0);
3690 mono_mb_emit_stloc (mb, local_i);
3692 pos1 = mono_mb_get_label (mb);
3694 /* d = delegates [i]; */
3695 mono_mb_emit_ldloc (mb, local_delegates);
3696 mono_mb_emit_ldloc (mb, local_i);
3697 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3698 mono_mb_emit_stloc (mb, local_d);
3700 /* res = d.Invoke ( args .. ); */
3701 mono_mb_emit_ldloc (mb, local_d);
3702 for (i = 0; i < sig->param_count; i++)
3703 mono_mb_emit_ldarg (mb, i + 1);
3705 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3708 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3709 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3712 mono_mb_emit_stloc (mb, local_res);
3715 mono_mb_emit_add_to_local (mb, local_i, 1);
3718 mono_mb_emit_ldloc (mb, local_i);
3719 mono_mb_emit_ldloc (mb, local_len);
3720 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3724 mono_mb_emit_ldloc (mb, local_res);
3725 mono_mb_emit_byte (mb, CEE_RET);
3727 mb->skip_visibility = 1;
3728 #endif /* DISABLE_JIT */
3730 info = mono_wrapper_info_create (mb, subtype);
3731 info->d.delegate_invoke.method = method;
3736 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3737 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3738 } else if (callvirt) {
3739 new_key = g_new0 (SignaturePointerPair, 1);
3742 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3746 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3750 /* mono_method_print_code (res); */
3756 * the returned method invokes all methods in a multicast delegate.
3759 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3761 gboolean callvirt = FALSE;
3762 gboolean static_method_with_first_arg_bound = FALSE;
3763 MonoMethod *target_method = NULL;
3764 MonoMethodSignature *sig;
3766 sig = mono_signature_no_pinvoke (method);
3768 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3770 target_method = del->method;
3773 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3774 static_method_with_first_arg_bound = TRUE;
3775 target_method = del->method;
3778 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3782 MonoMethodSignature *ctor_sig;
3783 MonoMethodSignature *sig;
3786 /* protected by the marshal lock, contains CtorSigPair pointers */
3787 static GSList *strsig_list = NULL;
3789 static MonoMethodSignature *
3790 lookup_string_ctor_signature (MonoMethodSignature *sig)
3792 MonoMethodSignature *callsig;
3796 mono_marshal_lock ();
3798 for (item = strsig_list; item; item = item->next) {
3799 cs = (CtorSigPair *)item->data;
3800 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3801 * because it is lock-free.
3803 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3808 mono_marshal_unlock ();
3812 static MonoMethodSignature *
3813 add_string_ctor_signature (MonoMethod *method)
3815 MonoMethodSignature *callsig;
3818 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3819 callsig->ret = &mono_defaults.string_class->byval_arg;
3820 cs = g_new (CtorSigPair, 1);
3822 cs->ctor_sig = mono_method_signature (method);
3824 mono_marshal_lock ();
3825 strsig_list = g_slist_prepend (strsig_list, cs);
3826 mono_marshal_unlock ();
3831 * mono_marshal_get_string_ctor_signature:
3833 * Return the modified signature used by string ctors (they return the newly created
3836 MonoMethodSignature*
3837 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3839 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3841 sig = add_string_ctor_signature (method);
3847 get_runtime_invoke_type (MonoType *t, gboolean ret)
3850 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3852 /* Can't share this with 'I' as that needs another indirection */
3853 return &mono_defaults.int_class->this_arg;
3856 if (MONO_TYPE_IS_REFERENCE (t))
3857 return &mono_defaults.object_class->byval_arg;
3860 /* The result needs to be boxed */
3865 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3868 return &mono_defaults.sbyte_class->byval_arg;
3870 return &mono_defaults.int16_class->byval_arg;
3872 return &mono_defaults.int32_class->byval_arg;
3875 return &mono_defaults.int64_class->byval_arg;
3876 case MONO_TYPE_BOOLEAN:
3877 return &mono_defaults.byte_class->byval_arg;
3878 case MONO_TYPE_CHAR:
3879 return &mono_defaults.uint16_class->byval_arg;
3881 return &mono_defaults.int_class->byval_arg;
3882 case MONO_TYPE_VALUETYPE:
3883 if (t->data.klass->enumtype) {
3884 t = mono_class_enum_basetype (t->data.klass);
3894 * mono_marshal_get_runtime_invoke_sig:
3896 * Return a common signature used for sharing runtime invoke wrappers.
3898 static MonoMethodSignature*
3899 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3901 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3904 res->generic_param_count = 0;
3905 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3906 for (i = 0; i < res->param_count; ++i)
3907 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3913 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3915 /* Can't share wrappers which return a vtype since it needs to be boxed */
3916 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))
3919 return mono_metadata_signature_equal (sig1, sig2);
3927 * Emit the call to the wrapper method from a runtime invoke wrapper.
3930 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3931 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3933 gboolean virtual_, gboolean need_direct_wrapper)
3935 static MonoString *string_dummy = NULL;
3937 int *tmp_nullable_locals;
3938 gboolean void_ret = FALSE;
3939 gboolean string_ctor = method && method->string_ctor;
3941 /* to make it work with our special string constructors */
3942 if (!string_dummy) {
3943 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3944 string_dummy = mono_string_new_wrapper ("dummy");
3948 g_assert (sig->hasthis);
3949 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3954 if (mono_gc_is_moving ()) {
3955 mono_mb_emit_ptr (mb, &string_dummy);
3956 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3958 mono_mb_emit_ptr (mb, string_dummy);
3961 mono_mb_emit_ldarg (mb, 0);
3965 tmp_nullable_locals = g_new0 (int, sig->param_count);
3967 for (i = 0; i < sig->param_count; i++) {
3968 MonoType *t = sig->params [i];
3971 mono_mb_emit_ldarg (mb, 1);
3973 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3974 mono_mb_emit_byte (mb, CEE_ADD);
3978 mono_mb_emit_byte (mb, CEE_LDIND_I);
3979 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3980 * So to make this work we unbox it to a local variablee and push a reference to that.
3982 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3983 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3985 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3986 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3987 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3992 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3993 type = sig->params [i]->type;
3997 case MONO_TYPE_BOOLEAN:
4001 case MONO_TYPE_CHAR:
4010 mono_mb_emit_byte (mb, CEE_LDIND_I);
4011 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4013 case MONO_TYPE_STRING:
4014 case MONO_TYPE_CLASS:
4015 case MONO_TYPE_ARRAY:
4017 case MONO_TYPE_SZARRAY:
4018 case MONO_TYPE_OBJECT:
4019 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4021 case MONO_TYPE_GENERICINST:
4022 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4023 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4028 case MONO_TYPE_VALUETYPE:
4029 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4030 type = mono_class_enum_basetype (t->data.klass)->type;
4033 mono_mb_emit_byte (mb, CEE_LDIND_I);
4034 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4035 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4036 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4037 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4039 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4043 g_assert_not_reached ();
4048 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4049 } else if (need_direct_wrapper) {
4050 mono_mb_emit_op (mb, CEE_CALL, method);
4052 mono_mb_emit_ldarg (mb, 3);
4053 mono_mb_emit_calli (mb, callsig);
4056 if (sig->ret->byref) {
4058 g_assert_not_reached ();
4061 switch (sig->ret->type) {
4062 case MONO_TYPE_VOID:
4066 case MONO_TYPE_BOOLEAN:
4067 case MONO_TYPE_CHAR:
4080 case MONO_TYPE_VALUETYPE:
4081 case MONO_TYPE_TYPEDBYREF:
4082 case MONO_TYPE_GENERICINST:
4083 /* box value types */
4084 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4086 case MONO_TYPE_STRING:
4087 case MONO_TYPE_CLASS:
4088 case MONO_TYPE_ARRAY:
4089 case MONO_TYPE_SZARRAY:
4090 case MONO_TYPE_OBJECT:
4094 /* The result is an IntPtr */
4095 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4098 g_assert_not_reached ();
4102 mono_mb_emit_stloc (mb, loc_res);
4104 /* Convert back nullable-byref arguments */
4105 for (i = 0; i < sig->param_count; i++) {
4106 MonoType *t = sig->params [i];
4109 * Box the result and put it back into the array, the caller will have
4110 * to obtain it from there.
4112 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4113 mono_mb_emit_ldarg (mb, 1);
4114 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4115 mono_mb_emit_byte (mb, CEE_ADD);
4117 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4118 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4120 mono_mb_emit_byte (mb, CEE_STIND_REF);
4124 g_free (tmp_nullable_locals);
4128 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
4129 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4130 gboolean virtual_, gboolean need_direct_wrapper)
4133 MonoExceptionClause *clause;
4134 int loc_res, loc_exc;
4136 /* The wrapper looks like this:
4142 * } catch (Exception e) {
4150 /* allocate local 0 (object) tmp */
4151 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4152 /* allocate local 1 (object) exc */
4153 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4155 /* *exc is assumed to be initialized to NULL by the caller */
4157 mono_mb_emit_byte (mb, CEE_LDARG_2);
4158 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4163 labels [1] = mono_mb_get_label (mb);
4164 emit_thread_force_interrupt_checkpoint (mb);
4165 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4167 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4169 /* Add a try clause around the call */
4170 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
4171 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4172 clause->data.catch_class = mono_defaults.exception_class;
4173 clause->try_offset = labels [1];
4174 clause->try_len = mono_mb_get_label (mb) - labels [1];
4176 clause->handler_offset = mono_mb_get_label (mb);
4179 mono_mb_emit_stloc (mb, loc_exc);
4180 mono_mb_emit_byte (mb, CEE_LDARG_2);
4181 mono_mb_emit_ldloc (mb, loc_exc);
4182 mono_mb_emit_byte (mb, CEE_STIND_REF);
4184 mono_mb_emit_branch (mb, CEE_LEAVE);
4186 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4188 mono_mb_set_clauses (mb, 1, clause);
4190 mono_mb_patch_branch (mb, labels [2]);
4191 mono_mb_emit_ldloc (mb, loc_res);
4192 mono_mb_emit_byte (mb, CEE_RET);
4197 mono_mb_patch_branch (mb, labels [0]);
4198 emit_thread_force_interrupt_checkpoint (mb);
4199 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4201 mono_mb_emit_ldloc (mb, 0);
4202 mono_mb_emit_byte (mb, CEE_RET);
4207 * generates IL code for the runtime invoke function
4208 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4210 * we also catch exceptions if exc != null
4211 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4212 * it means that the compiled code for METHOD does not have to be looked up
4213 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4214 * its METHOD argument.
4217 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4219 MonoMethodSignature *sig, *csig, *callsig;
4220 MonoMethodBuilder *mb;
4221 GHashTable *cache = NULL;
4222 MonoClass *target_klass;
4223 MonoMethod *res = NULL;
4224 static MonoMethodSignature *cctor_signature = NULL;
4225 static MonoMethodSignature *finalize_signature = NULL;
4227 const char *param_names [16];
4228 gboolean need_direct_wrapper = FALSE;
4233 if (!cctor_signature) {
4234 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4235 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4237 if (!finalize_signature) {
4238 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4239 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4240 finalize_signature->hasthis = 1;
4244 need_direct_wrapper = TRUE;
4247 * Use a separate cache indexed by methods to speed things up and to avoid the
4248 * boundless mempool growth caused by the signature_dup stuff below.
4251 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4253 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4255 res = mono_marshal_find_in_cache (cache, method);
4259 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4260 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4262 * Array Get/Set/Address methods. The JIT implements them using inline code
4263 * so we need to create an invoke wrapper which calls the method directly.
4265 need_direct_wrapper = TRUE;
4268 if (method->string_ctor) {
4269 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4271 callsig = add_string_ctor_signature (method);
4272 /* Can't share this as we push a string as this */
4273 need_direct_wrapper = TRUE;
4275 if (method_is_dynamic (method))
4276 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4278 callsig = mono_method_signature (method);
4281 sig = mono_method_signature (method);
4283 target_klass = get_wrapper_target_class (method->klass->image);
4285 /* Try to share wrappers for non-corlib methods with simple signatures */
4286 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4287 callsig = cctor_signature;
4288 target_klass = mono_defaults.object_class;
4289 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4290 callsig = finalize_signature;
4291 target_klass = mono_defaults.object_class;
4294 if (need_direct_wrapper) {
4295 /* Already searched at the start */
4297 MonoMethodSignature *tmp_sig;
4299 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4300 GHashTable **cache_table = NULL;
4302 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4303 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4305 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4307 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4308 (GCompareFunc)runtime_invoke_signature_equal);
4310 /* from mono_marshal_find_in_cache */
4311 mono_marshal_lock ();
4312 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4313 mono_marshal_unlock ();
4320 /* Make a copy of the signature from the image mempool */
4322 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4326 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4328 csig->ret = &mono_defaults.object_class->byval_arg;
4329 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4330 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4332 csig->params [0] = &mono_defaults.object_class->byval_arg;
4333 csig->params [1] = &mono_defaults.int_class->byval_arg;
4334 csig->params [2] = &mono_defaults.int_class->byval_arg;
4335 csig->params [3] = &mono_defaults.int_class->byval_arg;
4338 /* This is called from runtime code so it has to be cdecl */
4339 csig->call_convention = MONO_CALL_C;
4342 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4343 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4347 param_names [0] = "this";
4348 param_names [1] = "params";
4349 param_names [2] = "exc";
4350 param_names [3] = "method";
4351 mono_mb_set_param_names (mb, param_names);
4353 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4356 if (need_direct_wrapper) {
4358 mb->skip_visibility = 1;
4360 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4361 info->d.runtime_invoke.method = method;
4362 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4364 /* taken from mono_mb_create_and_cache */
4365 mono_marshal_lock ();
4366 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4367 mono_marshal_unlock ();
4369 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4370 info->d.runtime_invoke.sig = callsig;
4372 /* Somebody may have created it before us */
4375 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4377 mono_marshal_lock ();
4378 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4380 GHashTable *direct_cache;
4382 g_hash_table_insert (cache, callsig, res);
4383 /* Can't insert it into wrapper_hash since the key is a signature */
4384 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4386 g_hash_table_insert (direct_cache, method, res);
4388 mono_free_method (newm);
4390 mono_marshal_unlock ();
4393 /* end mono_mb_create_and_cache */
4402 * mono_marshal_get_runtime_invoke_dynamic:
4404 * Return a method which can be used to invoke managed methods from native code
4406 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4407 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4408 * ARGS should point to an architecture specific structure containing
4409 * the arguments and space for the return value.
4410 * The other arguments are the same as for runtime_invoke (), except that
4411 * ARGS should contain the this argument too.
4412 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4413 * is only one copy of it, which is useful in full-aot.
4416 mono_marshal_get_runtime_invoke_dynamic (void)
4418 static MonoMethod *method;
4419 MonoMethodSignature *csig;
4420 MonoExceptionClause *clause;
4421 MonoMethodBuilder *mb;
4429 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4431 csig->ret = &mono_defaults.void_class->byval_arg;
4432 csig->params [0] = &mono_defaults.int_class->byval_arg;
4433 csig->params [1] = &mono_defaults.int_class->byval_arg;
4434 csig->params [2] = &mono_defaults.int_class->byval_arg;
4435 csig->params [3] = &mono_defaults.int_class->byval_arg;
4437 name = g_strdup ("runtime_invoke_dynamic");
4438 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4442 /* allocate local 0 (object) tmp */
4443 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4444 /* allocate local 1 (object) exc */
4445 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4447 /* cond set *exc to null */
4448 mono_mb_emit_byte (mb, CEE_LDARG_1);
4449 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4450 mono_mb_emit_byte (mb, 3);
4451 mono_mb_emit_byte (mb, CEE_LDARG_1);
4452 mono_mb_emit_byte (mb, CEE_LDNULL);
4453 mono_mb_emit_byte (mb, CEE_STIND_REF);
4455 emit_thread_force_interrupt_checkpoint (mb);
4457 mono_mb_emit_byte (mb, CEE_LDARG_0);
4458 mono_mb_emit_byte (mb, CEE_LDARG_2);
4459 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4460 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4462 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4464 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4465 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4466 clause->try_len = mono_mb_get_label (mb);
4469 clause->data.filter_offset = mono_mb_get_label (mb);
4471 mono_mb_emit_byte (mb, CEE_POP);
4472 mono_mb_emit_byte (mb, CEE_LDARG_1);
4473 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4474 mono_mb_emit_byte (mb, CEE_PREFIX1);
4475 mono_mb_emit_byte (mb, CEE_CGT_UN);
4476 mono_mb_emit_byte (mb, CEE_PREFIX1);
4477 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4479 clause->handler_offset = mono_mb_get_label (mb);
4482 /* store exception */
4483 mono_mb_emit_stloc (mb, 1);
4485 mono_mb_emit_byte (mb, CEE_LDARG_1);
4486 mono_mb_emit_ldloc (mb, 1);
4487 mono_mb_emit_byte (mb, CEE_STIND_REF);
4489 mono_mb_emit_byte (mb, CEE_LDNULL);
4490 mono_mb_emit_stloc (mb, 0);
4492 /* Check for the abort exception */
4493 mono_mb_emit_ldloc (mb, 1);
4494 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4495 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4497 /* Delay the abort exception */
4498 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4500 mono_mb_patch_short_branch (mb, posna);
4501 mono_mb_emit_branch (mb, CEE_LEAVE);
4503 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4505 mono_mb_set_clauses (mb, 1, clause);
4508 mono_mb_patch_branch (mb, pos);
4509 //mono_mb_emit_ldloc (mb, 0);
4510 mono_mb_emit_byte (mb, CEE_RET);
4511 #endif /* DISABLE_JIT */
4513 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4515 mono_marshal_lock ();
4516 /* double-checked locking */
4518 method = mono_mb_create (mb, csig, 16, info);
4520 mono_marshal_unlock ();
4528 * mono_marshal_get_runtime_invoke_for_sig:
4530 * Return a runtime invoke wrapper for a given signature.
4533 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4535 MonoMethodSignature *csig, *callsig;
4536 MonoMethodBuilder *mb;
4538 GHashTable *cache = NULL;
4539 GHashTable **cache_table = NULL;
4540 MonoMethod *res = NULL;
4542 const char *param_names [16];
4545 /* A simplified version of mono_marshal_get_runtime_invoke */
4547 image = mono_defaults.corlib;
4549 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4551 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4553 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4554 (GCompareFunc)runtime_invoke_signature_equal);
4556 /* from mono_marshal_find_in_cache */
4557 mono_marshal_lock ();
4558 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4559 mono_marshal_unlock ();
4566 /* Make a copy of the signature from the image mempool */
4567 callsig = mono_metadata_signature_dup_full (image, callsig);
4569 csig = mono_metadata_signature_alloc (image, 4);
4570 csig->ret = &mono_defaults.object_class->byval_arg;
4571 csig->params [0] = &mono_defaults.object_class->byval_arg;
4572 csig->params [1] = &mono_defaults.int_class->byval_arg;
4573 csig->params [2] = &mono_defaults.int_class->byval_arg;
4574 csig->params [3] = &mono_defaults.int_class->byval_arg;
4577 /* This is called from runtime code so it has to be cdecl */
4578 csig->call_convention = MONO_CALL_C;
4581 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4582 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4586 param_names [0] = "this";
4587 param_names [1] = "params";
4588 param_names [2] = "exc";
4589 param_names [3] = "method";
4590 mono_mb_set_param_names (mb, param_names);
4592 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4595 /* taken from mono_mb_create_and_cache */
4596 mono_marshal_lock ();
4597 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4598 mono_marshal_unlock ();
4600 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4601 info->d.runtime_invoke.sig = callsig;
4603 /* Somebody may have created it before us */
4606 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4608 mono_marshal_lock ();
4609 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4612 g_hash_table_insert (cache, callsig, res);
4614 mono_free_method (newm);
4616 mono_marshal_unlock ();
4619 /* end mono_mb_create_and_cache */
4628 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4630 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4631 klass->name_space, klass->name);
4633 mono_mb_emit_exception_marshal_directive (mb, msg);
4638 * generates IL code for the icall wrapper (the generated method
4639 * calls the unmanaged code in func)
4642 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4644 MonoMethodSignature *csig, *csig2;
4645 MonoMethodBuilder *mb;
4650 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4651 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4654 g_assert (sig->pinvoke);
4656 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4658 mb->method->save_lmf = 1;
4660 /* Add an explicit this argument */
4662 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4664 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4668 mono_mb_emit_byte (mb, CEE_LDARG_0);
4670 for (i = 0; i < sig->param_count; i++)
4671 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4673 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4674 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4675 mono_mb_emit_calli (mb, csig2);
4676 if (check_exceptions)
4677 emit_thread_interrupt_checkpoint (mb);
4678 mono_mb_emit_byte (mb, CEE_RET);
4681 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4683 if (csig->call_convention == MONO_CALL_VARARG)
4684 csig->call_convention = 0;
4686 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4687 info->d.icall.func = (gpointer)func;
4688 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4695 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4696 MonoMarshalSpec *spec,
4697 int conv_arg, MonoType **conv_arg_type,
4698 MarshalAction action)
4701 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4702 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4708 static MonoClass *ICustomMarshaler = NULL;
4709 static MonoMethod *cleanup_native, *cleanup_managed;
4710 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4711 MonoMethod *get_instance = NULL;
4712 MonoMethodBuilder *mb = m->mb;
4713 char *exception_msg = NULL;
4717 if (!ICustomMarshaler) {
4718 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4720 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4721 goto handle_exception;
4724 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4725 g_assert (cleanup_native);
4726 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4727 g_assert (cleanup_managed);
4728 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4729 g_assert (marshal_managed_to_native);
4730 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4731 g_assert (marshal_native_to_managed);
4733 mono_memory_barrier ();
4734 ICustomMarshaler = klass;
4737 if (spec->data.custom_data.image)
4738 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4740 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4741 g_assert (mtype != NULL);
4742 mono_error_assert_ok (&error);
4743 mklass = mono_class_from_mono_type (mtype);
4744 g_assert (mklass != NULL);
4746 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4747 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4749 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4751 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4752 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4753 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4754 (get_sig->params [0]->type != MONO_TYPE_STRING))
4755 get_instance = NULL;
4759 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);
4762 /* Throw exception and emit compensation code if neccesary */
4763 if (exception_msg) {
4765 case MARSHAL_ACTION_CONV_IN:
4766 case MARSHAL_ACTION_CONV_RESULT:
4767 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4768 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4769 mono_mb_emit_byte (mb, CEE_POP);
4771 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4772 g_free (exception_msg);
4775 case MARSHAL_ACTION_PUSH:
4776 mono_mb_emit_byte (mb, CEE_LDNULL);
4784 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4785 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4788 case MARSHAL_ACTION_CONV_IN:
4790 case MONO_TYPE_CLASS:
4791 case MONO_TYPE_OBJECT:
4792 case MONO_TYPE_STRING:
4793 case MONO_TYPE_ARRAY:
4794 case MONO_TYPE_SZARRAY:
4795 case MONO_TYPE_VALUETYPE:
4799 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4800 g_assert_not_reached ();
4804 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4806 mono_mb_emit_byte (mb, CEE_LDNULL);
4807 mono_mb_emit_stloc (mb, conv_arg);
4809 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4812 /* Minic MS.NET behavior */
4813 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4816 /* Check for null */
4817 mono_mb_emit_ldarg (mb, argnum);
4819 mono_mb_emit_byte (mb, CEE_LDIND_I);
4820 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4822 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4824 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4826 mono_mb_emit_ldarg (mb, argnum);
4828 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4830 if (t->type == MONO_TYPE_VALUETYPE) {
4832 * Since we can't determine the type of the argument, we
4833 * will assume the unmanaged function takes a pointer.
4835 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4837 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4840 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4841 mono_mb_emit_stloc (mb, conv_arg);
4843 mono_mb_patch_branch (mb, pos2);
4846 case MARSHAL_ACTION_CONV_OUT:
4847 /* Check for null */
4848 mono_mb_emit_ldloc (mb, conv_arg);
4849 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4852 mono_mb_emit_ldarg (mb, argnum);
4854 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4856 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4858 mono_mb_emit_ldloc (mb, conv_arg);
4859 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4860 mono_mb_emit_byte (mb, CEE_STIND_REF);
4861 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4862 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4864 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4866 mono_mb_emit_ldloc (mb, conv_arg);
4867 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4869 /* We have nowhere to store the result */
4870 mono_mb_emit_byte (mb, CEE_POP);
4873 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4875 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4877 mono_mb_emit_ldloc (mb, conv_arg);
4879 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4881 mono_mb_patch_branch (mb, pos2);
4884 case MARSHAL_ACTION_PUSH:
4886 mono_mb_emit_ldloc_addr (mb, conv_arg);
4888 mono_mb_emit_ldloc (mb, conv_arg);
4891 case MARSHAL_ACTION_CONV_RESULT:
4892 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4894 mono_mb_emit_stloc (mb, 3);
4896 mono_mb_emit_ldloc (mb, 3);
4897 mono_mb_emit_stloc (mb, loc1);
4899 /* Check for null */
4900 mono_mb_emit_ldloc (mb, 3);
4901 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4903 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4905 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4906 mono_mb_emit_byte (mb, CEE_DUP);
4908 mono_mb_emit_ldloc (mb, 3);
4909 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4910 mono_mb_emit_stloc (mb, 3);
4912 mono_mb_emit_ldloc (mb, loc1);
4913 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4915 mono_mb_patch_branch (mb, pos2);
4918 case MARSHAL_ACTION_MANAGED_CONV_IN:
4919 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4921 mono_mb_emit_byte (mb, CEE_LDNULL);
4922 mono_mb_emit_stloc (mb, conv_arg);
4924 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4927 /* Check for null */
4928 mono_mb_emit_ldarg (mb, argnum);
4930 mono_mb_emit_byte (mb, CEE_LDIND_I);
4931 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4933 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4934 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4936 mono_mb_emit_ldarg (mb, argnum);
4938 mono_mb_emit_byte (mb, CEE_LDIND_I);
4940 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4941 mono_mb_emit_stloc (mb, conv_arg);
4943 mono_mb_patch_branch (mb, pos2);
4946 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4947 g_assert (!t->byref);
4949 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4951 mono_mb_emit_stloc (mb, 3);
4953 mono_mb_emit_ldloc (mb, 3);
4954 mono_mb_emit_stloc (mb, loc1);
4956 /* Check for null */
4957 mono_mb_emit_ldloc (mb, 3);
4958 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4960 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4961 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4962 mono_mb_emit_byte (mb, CEE_DUP);
4964 mono_mb_emit_ldloc (mb, 3);
4965 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4966 mono_mb_emit_stloc (mb, 3);
4968 mono_mb_emit_ldloc (mb, loc1);
4969 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4971 mono_mb_patch_branch (mb, pos2);
4974 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4976 /* Check for null */
4977 mono_mb_emit_ldloc (mb, conv_arg);
4978 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4981 mono_mb_emit_ldarg (mb, argnum);
4983 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4985 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4987 mono_mb_emit_ldloc (mb, conv_arg);
4988 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4989 mono_mb_emit_byte (mb, CEE_STIND_I);
4992 /* Call CleanUpManagedData */
4993 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4995 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4997 mono_mb_emit_ldloc (mb, conv_arg);
4998 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5000 mono_mb_patch_branch (mb, pos2);
5004 g_assert_not_reached ();
5012 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5013 MonoMarshalSpec *spec,
5014 int conv_arg, MonoType **conv_arg_type,
5015 MarshalAction action)
5018 MonoMethodBuilder *mb = m->mb;
5021 case MARSHAL_ACTION_CONV_IN: {
5022 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5024 g_assert (t->type == MONO_TYPE_OBJECT);
5025 g_assert (!t->byref);
5027 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5028 mono_mb_emit_ldarg (mb, argnum);
5029 mono_mb_emit_icon (mb, encoding);
5030 mono_mb_emit_icon (mb, t->attrs);
5031 mono_mb_emit_icall (mb, mono_marshal_asany);
5032 mono_mb_emit_stloc (mb, conv_arg);
5036 case MARSHAL_ACTION_PUSH:
5037 mono_mb_emit_ldloc (mb, conv_arg);
5040 case MARSHAL_ACTION_CONV_OUT: {
5041 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5043 mono_mb_emit_ldarg (mb, argnum);
5044 mono_mb_emit_ldloc (mb, conv_arg);
5045 mono_mb_emit_icon (mb, encoding);
5046 mono_mb_emit_icon (mb, t->attrs);
5047 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5052 g_assert_not_reached ();
5059 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5060 MonoMarshalSpec *spec,
5061 int conv_arg, MonoType **conv_arg_type,
5062 MarshalAction action)
5065 MonoMethodBuilder *mb = m->mb;
5066 MonoClass *klass, *date_time_class;
5069 klass = mono_class_from_mono_type (t);
5071 date_time_class = mono_class_get_date_time_class ();
5074 case MARSHAL_ACTION_CONV_IN:
5075 if (klass == date_time_class) {
5076 /* Convert it to an OLE DATE type */
5077 static MonoMethod *to_oadate;
5080 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5081 g_assert (to_oadate);
5083 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5086 mono_mb_emit_ldarg (mb, argnum);
5087 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5090 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5092 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5094 mono_mb_emit_ldarg_addr (mb, argnum);
5095 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5096 mono_mb_emit_stloc (mb, conv_arg);
5100 mono_mb_patch_branch (mb, pos);
5104 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5107 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5109 /* store the address of the source into local variable 0 */
5111 mono_mb_emit_ldarg (mb, argnum);
5113 mono_mb_emit_ldarg_addr (mb, argnum);
5115 mono_mb_emit_stloc (mb, 0);
5117 /* allocate space for the native struct and
5118 * store the address into local variable 1 (dest) */
5119 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5120 mono_mb_emit_byte (mb, CEE_PREFIX1);
5121 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5122 mono_mb_emit_stloc (mb, conv_arg);
5125 mono_mb_emit_ldloc (mb, 0);
5126 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5129 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5131 mono_mb_emit_ldloc (mb, conv_arg);
5132 mono_mb_emit_stloc (mb, 1);
5134 /* emit valuetype conversion code */
5135 emit_struct_conv (mb, klass, FALSE);
5139 mono_mb_patch_branch (mb, pos);
5142 case MARSHAL_ACTION_PUSH:
5143 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5145 g_assert (!t->byref);
5147 /* Have to change the signature since the vtype is passed byref */
5148 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5150 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5151 mono_mb_emit_ldarg_addr (mb, argnum);
5153 mono_mb_emit_ldloc (mb, conv_arg);
5157 if (klass == date_time_class) {
5159 mono_mb_emit_ldloc_addr (mb, conv_arg);
5161 mono_mb_emit_ldloc (mb, conv_arg);
5165 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5166 mono_mb_emit_ldarg (mb, argnum);
5169 mono_mb_emit_ldloc (mb, conv_arg);
5171 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5172 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5176 case MARSHAL_ACTION_CONV_OUT:
5177 if (klass == date_time_class) {
5178 /* Convert from an OLE DATE type */
5179 static MonoMethod *from_oadate;
5184 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5186 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5187 g_assert (from_oadate);
5189 mono_mb_emit_ldarg (mb, argnum);
5190 mono_mb_emit_ldloc (mb, conv_arg);
5191 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5192 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5197 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5201 /* dst = argument */
5202 mono_mb_emit_ldarg (mb, argnum);
5203 mono_mb_emit_stloc (mb, 1);
5205 mono_mb_emit_ldloc (mb, 1);
5206 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5208 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5209 /* src = tmp_locals [i] */
5210 mono_mb_emit_ldloc (mb, conv_arg);
5211 mono_mb_emit_stloc (mb, 0);
5213 /* emit valuetype conversion code */
5214 emit_struct_conv (mb, klass, TRUE);
5218 emit_struct_free (mb, klass, conv_arg);
5221 mono_mb_patch_branch (mb, pos);
5224 case MARSHAL_ACTION_CONV_RESULT:
5225 if (mono_class_is_explicit_layout (klass) || klass->blittable) {
5226 mono_mb_emit_stloc (mb, 3);
5230 /* load pointer to returned value type */
5231 g_assert (m->vtaddr_var);
5232 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5233 /* store the address of the source into local variable 0 */
5234 mono_mb_emit_stloc (mb, 0);
5236 mono_mb_emit_ldloc_addr (mb, 3);
5237 mono_mb_emit_stloc (mb, 1);
5239 /* emit valuetype conversion code */
5240 emit_struct_conv (mb, klass, TRUE);
5243 case MARSHAL_ACTION_MANAGED_CONV_IN:
5244 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5249 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5251 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5255 mono_mb_emit_ldarg (mb, argnum);
5257 mono_mb_emit_ldarg_addr (mb, argnum);
5258 mono_mb_emit_stloc (mb, 0);
5261 mono_mb_emit_ldloc (mb, 0);
5262 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5265 mono_mb_emit_ldloc_addr (mb, conv_arg);
5266 mono_mb_emit_stloc (mb, 1);
5268 /* emit valuetype conversion code */
5269 emit_struct_conv (mb, klass, TRUE);
5272 mono_mb_patch_branch (mb, pos);
5275 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5276 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5278 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5281 /* Check for null */
5282 mono_mb_emit_ldarg (mb, argnum);
5283 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5286 mono_mb_emit_ldloc_addr (mb, conv_arg);
5287 mono_mb_emit_stloc (mb, 0);
5290 mono_mb_emit_ldarg (mb, argnum);
5291 mono_mb_emit_stloc (mb, 1);
5293 /* emit valuetype conversion code */
5294 emit_struct_conv (mb, klass, FALSE);
5296 mono_mb_patch_branch (mb, pos2);
5299 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5300 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5301 mono_mb_emit_stloc (mb, 3);
5306 /* load pointer to returned value type */
5307 g_assert (m->vtaddr_var);
5308 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5310 /* store the address of the source into local variable 0 */
5311 mono_mb_emit_stloc (mb, 0);
5312 /* allocate space for the native struct and
5313 * store the address into dst_ptr */
5314 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5315 m->retobj_class = klass;
5316 g_assert (m->retobj_var);
5317 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5318 mono_mb_emit_byte (mb, CEE_CONV_I);
5319 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5320 mono_mb_emit_stloc (mb, 1);
5321 mono_mb_emit_ldloc (mb, 1);
5322 mono_mb_emit_stloc (mb, m->retobj_var);
5324 /* emit valuetype conversion code */
5325 emit_struct_conv (mb, klass, FALSE);
5329 g_assert_not_reached ();
5336 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5337 MonoMarshalSpec *spec,
5338 int conv_arg, MonoType **conv_arg_type,
5339 MarshalAction action)
5343 case MARSHAL_ACTION_CONV_IN:
5344 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5346 case MARSHAL_ACTION_MANAGED_CONV_IN:
5347 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5351 MonoMethodBuilder *mb = m->mb;
5352 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5353 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5357 case MARSHAL_ACTION_CONV_IN:
5358 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5359 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5362 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5365 mono_mb_emit_ldarg (mb, argnum);
5366 mono_mb_emit_byte (mb, CEE_LDIND_I);
5368 mono_mb_emit_ldarg (mb, argnum);
5371 if (conv == MONO_MARSHAL_CONV_INVALID) {
5372 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5373 mono_mb_emit_exception_marshal_directive (mb, msg);
5375 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5377 mono_mb_emit_stloc (mb, conv_arg);
5381 case MARSHAL_ACTION_CONV_OUT:
5382 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5383 if (conv == MONO_MARSHAL_CONV_INVALID) {
5384 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5385 mono_mb_emit_exception_marshal_directive (mb, msg);
5389 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5390 static MonoMethod *m;
5393 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5398 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5399 mono_mb_emit_exception_marshal_directive (mb, msg);
5404 * Have to allocate a new string with the same length as the original, and
5405 * copy the contents of the buffer pointed to by CONV_ARG into it.
5407 g_assert (t->byref);
5408 mono_mb_emit_ldarg (mb, argnum);
5409 mono_mb_emit_ldloc (mb, conv_arg);
5410 mono_mb_emit_ldarg (mb, argnum);
5411 mono_mb_emit_byte (mb, CEE_LDIND_I);
5412 mono_mb_emit_managed_call (mb, m, NULL);
5413 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5414 mono_mb_emit_byte (mb, CEE_STIND_REF);
5415 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5417 mono_mb_emit_ldarg (mb, argnum);
5418 mono_mb_emit_ldloc (mb, conv_arg);
5419 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5420 mono_mb_emit_byte (mb, stind_op);
5425 mono_mb_emit_ldloc (mb, conv_arg);
5426 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5427 mono_mb_emit_icall (mb, mono_free_bstr);
5429 mono_mb_emit_icall (mb, mono_marshal_free);
5433 case MARSHAL_ACTION_PUSH:
5434 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5435 mono_mb_emit_ldloc_addr (mb, conv_arg);
5437 mono_mb_emit_ldloc (mb, conv_arg);
5440 case MARSHAL_ACTION_CONV_RESULT:
5441 mono_mb_emit_stloc (mb, 0);
5443 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5444 if (conv == MONO_MARSHAL_CONV_INVALID) {
5445 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5446 mono_mb_emit_exception_marshal_directive (mb, msg);
5450 mono_mb_emit_ldloc (mb, 0);
5451 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5452 mono_mb_emit_stloc (mb, 3);
5454 /* free the string */
5455 mono_mb_emit_ldloc (mb, 0);
5456 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5457 mono_mb_emit_icall (mb, mono_free_bstr);
5459 mono_mb_emit_icall (mb, mono_marshal_free);
5462 case MARSHAL_ACTION_MANAGED_CONV_IN:
5463 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5465 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5468 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5472 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5473 if (conv == MONO_MARSHAL_CONV_INVALID) {
5474 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5475 mono_mb_emit_exception_marshal_directive (mb, msg);
5479 mono_mb_emit_ldarg (mb, argnum);
5481 mono_mb_emit_byte (mb, CEE_LDIND_I);
5482 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5483 mono_mb_emit_stloc (mb, conv_arg);
5486 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5490 mono_mb_emit_ldarg (mb, argnum);
5491 mono_mb_emit_ldloc (mb, conv_arg);
5492 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5493 mono_mb_emit_byte (mb, stind_op);
5498 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5499 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5500 /* We need to make a copy so the caller is able to free it */
5501 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5503 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5504 mono_mb_emit_stloc (mb, 3);
5508 g_assert_not_reached ();
5516 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5517 MonoMarshalSpec *spec, int conv_arg,
5518 MonoType **conv_arg_type, MarshalAction action)
5521 if (action == MARSHAL_ACTION_CONV_IN)
5522 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5524 MonoMethodBuilder *mb = m->mb;
5527 case MARSHAL_ACTION_CONV_IN: {
5528 MonoType *intptr_type;
5529 int dar_release_slot, pos;
5531 intptr_type = &mono_defaults.int_class->byval_arg;
5532 conv_arg = mono_mb_add_local (mb, intptr_type);
5533 *conv_arg_type = intptr_type;
5535 if (!sh_dangerous_add_ref)
5536 init_safe_handle ();
5538 mono_mb_emit_ldarg (mb, argnum);
5539 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5540 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5542 mono_mb_patch_branch (mb, pos);
5545 * My tests in show that ref SafeHandles are not really
5546 * passed as ref objects. Instead a NULL is passed as the
5549 mono_mb_emit_icon (mb, 0);
5550 mono_mb_emit_stloc (mb, conv_arg);
5554 /* Create local to hold the ref parameter to DangerousAddRef */
5555 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5557 /* set release = false; */
5558 mono_mb_emit_icon (mb, 0);
5559 mono_mb_emit_stloc (mb, dar_release_slot);
5561 /* safehandle.DangerousAddRef (ref release) */
5562 mono_mb_emit_ldarg (mb, argnum);
5563 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5564 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5566 /* Pull the handle field from SafeHandle */
5567 mono_mb_emit_ldarg (mb, argnum);
5568 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5569 mono_mb_emit_byte (mb, CEE_LDIND_I);
5570 mono_mb_emit_stloc (mb, conv_arg);
5575 case MARSHAL_ACTION_PUSH:
5577 mono_mb_emit_ldloc_addr (mb, conv_arg);
5579 mono_mb_emit_ldloc (mb, conv_arg);
5582 case MARSHAL_ACTION_CONV_OUT: {
5583 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5584 int dar_release_slot = conv_arg + 1;
5587 if (!sh_dangerous_release)
5588 init_safe_handle ();
5594 * My tests indicate that ref SafeHandles parameters are not actually
5595 * passed by ref, but instead a new Handle is created regardless of
5596 * whether a change happens in the unmanaged side.
5598 * Also, the Handle is created before calling into unmanaged code,
5599 * but we do not support that mechanism (getting to the original
5600 * handle) and it makes no difference where we create this
5602 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5604 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5607 /* refval = new SafeHandleDerived ()*/
5608 mono_mb_emit_ldarg (mb, argnum);
5609 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5610 mono_mb_emit_byte (mb, CEE_STIND_REF);
5612 /* refval.handle = returned_handle */
5613 mono_mb_emit_ldarg (mb, argnum);
5614 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5615 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5616 mono_mb_emit_ldloc (mb, conv_arg);
5617 mono_mb_emit_byte (mb, CEE_STIND_I);
5619 mono_mb_emit_ldloc (mb, dar_release_slot);
5620 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5621 mono_mb_emit_ldarg (mb, argnum);
5622 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5623 mono_mb_patch_branch (mb, label_next);
5628 case MARSHAL_ACTION_CONV_RESULT: {
5629 MonoMethod *ctor = NULL;
5630 int intptr_handle_slot;
5632 if (mono_class_is_abstract (t->data.klass)) {
5633 mono_mb_emit_byte (mb, CEE_POP);
5634 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5638 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5640 mono_mb_emit_byte (mb, CEE_POP);
5641 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5644 /* Store the IntPtr results into a local */
5645 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5646 mono_mb_emit_stloc (mb, intptr_handle_slot);
5648 /* Create return value */
5649 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5650 mono_mb_emit_stloc (mb, 3);
5652 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5653 mono_mb_emit_ldloc (mb, 3);
5654 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5655 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5656 mono_mb_emit_byte (mb, CEE_STIND_I);
5660 case MARSHAL_ACTION_MANAGED_CONV_IN:
5661 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5664 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5665 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5668 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5669 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5672 printf ("Unhandled case for MarshalAction: %d\n", action);
5680 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5681 MonoMarshalSpec *spec, int conv_arg,
5682 MonoType **conv_arg_type, MarshalAction action)
5685 if (action == MARSHAL_ACTION_CONV_IN)
5686 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5688 MonoMethodBuilder *mb = m->mb;
5691 case MARSHAL_ACTION_CONV_IN: {
5692 MonoType *intptr_type;
5694 intptr_type = &mono_defaults.int_class->byval_arg;
5695 conv_arg = mono_mb_add_local (mb, intptr_type);
5696 *conv_arg_type = intptr_type;
5699 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5700 mono_mb_emit_exception_marshal_directive (mb, msg);
5703 mono_mb_emit_ldarg_addr (mb, argnum);
5704 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5705 mono_mb_emit_byte (mb, CEE_ADD);
5706 mono_mb_emit_byte (mb, CEE_LDIND_I);
5707 mono_mb_emit_stloc (mb, conv_arg);
5711 case MARSHAL_ACTION_PUSH:
5712 mono_mb_emit_ldloc (mb, conv_arg);
5715 case MARSHAL_ACTION_CONV_OUT: {
5716 /* no resource release required */
5720 case MARSHAL_ACTION_CONV_RESULT: {
5721 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5722 mono_mb_emit_exception_marshal_directive (mb, msg);
5726 case MARSHAL_ACTION_MANAGED_CONV_IN:
5727 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5730 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5731 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5734 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5735 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5738 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5746 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5747 MonoMarshalSpec *spec,
5748 int conv_arg, MonoType **conv_arg_type,
5749 MarshalAction action)
5752 if (action == MARSHAL_ACTION_CONV_IN)
5753 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5755 MonoMethodBuilder *mb = m->mb;
5756 MonoClass *klass = mono_class_from_mono_type (t);
5760 case MARSHAL_ACTION_CONV_IN:
5761 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5762 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5764 m->orig_conv_args [argnum] = 0;
5766 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5767 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5768 mono_mb_emit_exception_marshal_directive (mb, msg);
5772 if (klass->delegate) {
5774 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5775 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5776 mono_mb_emit_exception_marshal_directive (mb, msg);
5778 mono_mb_emit_byte (mb, CEE_LDNULL);
5779 mono_mb_emit_stloc (mb, conv_arg);
5781 mono_mb_emit_ldarg (mb, argnum);
5782 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5783 mono_mb_emit_stloc (mb, conv_arg);
5785 } else if (klass == mono_defaults.stringbuilder_class) {
5786 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5787 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5791 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5792 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5793 mono_mb_emit_exception_marshal_directive (mb, msg);
5799 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5802 if (conv == MONO_MARSHAL_CONV_INVALID) {
5803 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5804 mono_mb_emit_exception_marshal_directive (mb, msg);
5808 mono_mb_emit_ldarg (mb, argnum);
5810 mono_mb_emit_byte (mb, CEE_LDIND_I);
5812 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5813 mono_mb_emit_stloc (mb, conv_arg);
5814 } else if (klass->blittable) {
5815 mono_mb_emit_byte (mb, CEE_LDNULL);
5816 mono_mb_emit_stloc (mb, conv_arg);
5818 mono_mb_emit_ldarg (mb, argnum);
5819 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5821 mono_mb_emit_ldarg (mb, argnum);
5822 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5823 mono_mb_emit_stloc (mb, conv_arg);
5825 mono_mb_patch_branch (mb, pos);
5828 mono_mb_emit_byte (mb, CEE_LDNULL);
5829 mono_mb_emit_stloc (mb, conv_arg);
5832 /* we dont need any conversions for out parameters */
5833 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5836 mono_mb_emit_ldarg (mb, argnum);
5837 mono_mb_emit_byte (mb, CEE_LDIND_I);
5840 mono_mb_emit_ldarg (mb, argnum);
5841 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5842 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5845 /* store the address of the source into local variable 0 */
5846 mono_mb_emit_stloc (mb, 0);
5847 mono_mb_emit_ldloc (mb, 0);
5848 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5850 /* allocate space for the native struct and store the address */
5851 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5852 mono_mb_emit_byte (mb, CEE_PREFIX1);
5853 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5854 mono_mb_emit_stloc (mb, conv_arg);
5857 /* Need to store the original buffer so we can free it later */
5858 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5859 mono_mb_emit_ldloc (mb, conv_arg);
5860 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5863 /* set the src_ptr */
5864 mono_mb_emit_ldloc (mb, 0);
5865 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5866 mono_mb_emit_stloc (mb, 0);
5869 mono_mb_emit_ldloc (mb, conv_arg);
5870 mono_mb_emit_stloc (mb, 1);
5872 /* emit valuetype conversion code */
5873 emit_struct_conv (mb, klass, FALSE);
5875 mono_mb_patch_branch (mb, pos);
5879 case MARSHAL_ACTION_CONV_OUT:
5880 if (klass == mono_defaults.stringbuilder_class) {
5882 MonoMarshalNative encoding;
5883 MonoMarshalConv conv;
5885 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5886 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5888 g_assert (encoding != -1);
5891 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5895 mono_mb_emit_ldarg (mb, argnum);
5896 mono_mb_emit_ldloc (mb, conv_arg);
5899 case MONO_NATIVE_LPWSTR:
5900 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5902 case MONO_NATIVE_LPSTR:
5903 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5905 case MONO_NATIVE_UTF8STR:
5906 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5909 g_assert_not_reached ();
5912 mono_mb_emit_byte (mb, CEE_STIND_REF);
5914 mono_mb_emit_ldarg (mb, argnum);
5915 mono_mb_emit_ldloc (mb, conv_arg);
5917 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5921 mono_mb_emit_ldloc (mb, conv_arg);
5922 mono_mb_emit_icall (mb, mono_marshal_free);
5927 if (klass->delegate) {
5929 mono_mb_emit_ldarg (mb, argnum);
5930 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5931 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5932 mono_mb_emit_ldloc (mb, conv_arg);
5933 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5934 mono_mb_emit_byte (mb, CEE_STIND_REF);
5939 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5940 /* allocate a new object */
5941 mono_mb_emit_ldarg (mb, argnum);
5942 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5943 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5944 mono_mb_emit_byte (mb, CEE_STIND_REF);
5947 /* dst = *argument */
5948 mono_mb_emit_ldarg (mb, argnum);
5951 mono_mb_emit_byte (mb, CEE_LDIND_I);
5953 mono_mb_emit_stloc (mb, 1);
5955 mono_mb_emit_ldloc (mb, 1);
5956 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5958 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5959 mono_mb_emit_ldloc (mb, 1);
5960 mono_mb_emit_icon (mb, sizeof (MonoObject));
5961 mono_mb_emit_byte (mb, CEE_ADD);
5962 mono_mb_emit_stloc (mb, 1);
5964 /* src = tmp_locals [i] */
5965 mono_mb_emit_ldloc (mb, conv_arg);
5966 mono_mb_emit_stloc (mb, 0);
5968 /* emit valuetype conversion code */
5969 emit_struct_conv (mb, klass, TRUE);
5971 /* Free the structure returned by the native code */
5972 emit_struct_free (mb, klass, conv_arg);
5974 if (m->orig_conv_args [argnum]) {
5976 * If the native function changed the pointer, then free
5977 * the original structure plus the new pointer.
5979 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5980 mono_mb_emit_ldloc (mb, conv_arg);
5981 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5983 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5984 g_assert (m->orig_conv_args [argnum]);
5986 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5989 mono_mb_emit_ldloc (mb, conv_arg);
5990 mono_mb_emit_icall (mb, mono_marshal_free);
5992 mono_mb_patch_branch (mb, pos2);
5996 /* Free the original structure passed to native code */
5997 emit_struct_free (mb, klass, conv_arg);
5999 mono_mb_patch_branch (mb, pos);
6002 case MARSHAL_ACTION_PUSH:
6004 mono_mb_emit_ldloc_addr (mb, conv_arg);
6006 mono_mb_emit_ldloc (mb, conv_arg);
6009 case MARSHAL_ACTION_CONV_RESULT:
6010 if (klass->delegate) {
6011 g_assert (!t->byref);
6012 mono_mb_emit_stloc (mb, 0);
6013 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6014 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6015 mono_mb_emit_ldloc (mb, 0);
6016 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6017 mono_mb_emit_stloc (mb, 3);
6018 } else if (klass == mono_defaults.stringbuilder_class){
6022 mono_mb_emit_stloc (mb, 0);
6024 /* Make a copy since emit_conv modifies local 0 */
6025 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6026 mono_mb_emit_ldloc (mb, 0);
6027 mono_mb_emit_stloc (mb, loc);
6029 mono_mb_emit_byte (mb, CEE_LDNULL);
6030 mono_mb_emit_stloc (mb, 3);
6032 mono_mb_emit_ldloc (mb, 0);
6033 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6035 /* allocate result object */
6037 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6038 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6039 mono_mb_emit_stloc (mb, 3);
6043 mono_mb_emit_ldloc (mb, 3);
6044 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6045 mono_mb_emit_stloc (mb, 1);
6047 /* emit conversion code */
6048 emit_struct_conv (mb, klass, TRUE);
6050 emit_struct_free (mb, klass, loc);
6052 /* Free the pointer allocated by unmanaged code */
6053 mono_mb_emit_ldloc (mb, loc);
6054 mono_mb_emit_icall (mb, mono_marshal_free);
6055 mono_mb_patch_branch (mb, pos);
6059 case MARSHAL_ACTION_MANAGED_CONV_IN:
6060 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6062 if (klass->delegate) {
6063 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6064 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6065 mono_mb_emit_ldarg (mb, argnum);
6067 mono_mb_emit_byte (mb, CEE_LDIND_I);
6068 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6069 mono_mb_emit_stloc (mb, conv_arg);
6073 if (klass == mono_defaults.stringbuilder_class) {
6074 MonoMarshalNative encoding;
6076 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6079 g_assert (encoding == MONO_NATIVE_LPSTR || encoding == MONO_NATIVE_UTF8STR);
6081 g_assert (!t->byref);
6082 g_assert (encoding != -1);
6084 mono_mb_emit_ldarg (mb, argnum);
6085 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6086 mono_mb_emit_stloc (mb, conv_arg);
6090 /* The class can not have an automatic layout */
6091 if (mono_class_is_auto_layout (klass)) {
6092 mono_mb_emit_auto_layout_exception (mb, klass);
6096 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6097 mono_mb_emit_byte (mb, CEE_LDNULL);
6098 mono_mb_emit_stloc (mb, conv_arg);
6103 mono_mb_emit_ldarg (mb, argnum);
6107 /* Check for NULL and raise an exception */
6108 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6110 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6112 mono_mb_patch_branch (mb, pos2);
6113 mono_mb_emit_ldarg (mb, argnum);
6114 mono_mb_emit_byte (mb, CEE_LDIND_I);
6117 mono_mb_emit_stloc (mb, 0);
6119 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6120 mono_mb_emit_stloc (mb, conv_arg);
6122 mono_mb_emit_ldloc (mb, 0);
6123 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6125 /* Create and set dst */
6126 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6127 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6128 mono_mb_emit_stloc (mb, conv_arg);
6129 mono_mb_emit_ldloc (mb, conv_arg);
6130 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6131 mono_mb_emit_stloc (mb, 1);
6133 /* emit valuetype conversion code */
6134 emit_struct_conv (mb, klass, TRUE);
6136 mono_mb_patch_branch (mb, pos);
6139 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6140 if (klass->delegate) {
6143 mono_mb_emit_ldarg (mb, argnum);
6144 mono_mb_emit_ldloc (mb, conv_arg);
6145 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
6146 mono_mb_emit_byte (mb, stind_op);
6152 /* Check for null */
6153 mono_mb_emit_ldloc (mb, conv_arg);
6154 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6155 mono_mb_emit_ldarg (mb, argnum);
6156 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6157 mono_mb_emit_byte (mb, CEE_STIND_REF);
6158 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6160 mono_mb_patch_branch (mb, pos);
6163 mono_mb_emit_ldloc (mb, conv_arg);
6164 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6165 mono_mb_emit_stloc (mb, 0);
6167 /* Allocate and set dest */
6168 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6169 mono_mb_emit_byte (mb, CEE_CONV_I);
6170 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6171 mono_mb_emit_stloc (mb, 1);
6173 /* Update argument pointer */
6174 mono_mb_emit_ldarg (mb, argnum);
6175 mono_mb_emit_ldloc (mb, 1);
6176 mono_mb_emit_byte (mb, CEE_STIND_I);
6178 /* emit valuetype conversion code */
6179 emit_struct_conv (mb, klass, FALSE);
6181 mono_mb_patch_branch (mb, pos2);
6182 } else if (klass == mono_defaults.stringbuilder_class) {
6183 // FIXME: What to do here ?
6185 /* byval [Out] marshalling */
6187 /* FIXME: Handle null */
6190 mono_mb_emit_ldloc (mb, conv_arg);
6191 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6192 mono_mb_emit_stloc (mb, 0);
6195 mono_mb_emit_ldarg (mb, argnum);
6196 mono_mb_emit_stloc (mb, 1);
6198 /* emit valuetype conversion code */
6199 emit_struct_conv (mb, klass, FALSE);
6203 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6204 if (klass->delegate) {
6205 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6206 mono_mb_emit_stloc (mb, 3);
6210 /* The class can not have an automatic layout */
6211 if (mono_class_is_auto_layout (klass)) {
6212 mono_mb_emit_auto_layout_exception (mb, klass);
6216 mono_mb_emit_stloc (mb, 0);
6217 /* Check for null */
6218 mono_mb_emit_ldloc (mb, 0);
6219 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6220 mono_mb_emit_byte (mb, CEE_LDNULL);
6221 mono_mb_emit_stloc (mb, 3);
6222 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6224 mono_mb_patch_branch (mb, pos);
6227 mono_mb_emit_ldloc (mb, 0);
6228 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6229 mono_mb_emit_stloc (mb, 0);
6231 /* Allocate and set dest */
6232 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6233 mono_mb_emit_byte (mb, CEE_CONV_I);
6234 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6235 mono_mb_emit_byte (mb, CEE_DUP);
6236 mono_mb_emit_stloc (mb, 1);
6237 mono_mb_emit_stloc (mb, 3);
6239 emit_struct_conv (mb, klass, FALSE);
6241 mono_mb_patch_branch (mb, pos2);
6245 g_assert_not_reached ();
6256 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6257 MonoMarshalSpec *spec,
6258 int conv_arg, MonoType **conv_arg_type,
6259 MarshalAction action)
6261 MonoMethodBuilder *mb = m->mb;
6262 static MonoMethod *get_object_for_native_variant = NULL;
6263 static MonoMethod *get_native_variant_for_object = NULL;
6265 if (!get_object_for_native_variant)
6266 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6267 g_assert (get_object_for_native_variant);
6269 if (!get_native_variant_for_object)
6270 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6271 g_assert (get_native_variant_for_object);
6274 case MARSHAL_ACTION_CONV_IN: {
6275 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6278 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6280 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6282 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6285 mono_mb_emit_ldarg (mb, argnum);
6287 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6288 mono_mb_emit_ldloc_addr (mb, conv_arg);
6289 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6293 case MARSHAL_ACTION_CONV_OUT: {
6294 static MonoMethod *variant_clear = NULL;
6297 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6298 g_assert (variant_clear);
6301 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6302 mono_mb_emit_ldarg (mb, argnum);
6303 mono_mb_emit_ldloc_addr (mb, conv_arg);
6304 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6305 mono_mb_emit_byte (mb, CEE_STIND_REF);
6308 mono_mb_emit_ldloc_addr (mb, conv_arg);
6309 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6313 case MARSHAL_ACTION_PUSH:
6315 mono_mb_emit_ldloc_addr (mb, conv_arg);
6317 mono_mb_emit_ldloc (mb, conv_arg);
6320 case MARSHAL_ACTION_CONV_RESULT: {
6321 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6322 mono_mb_emit_exception_marshal_directive (mb, msg);
6326 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6327 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6330 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6332 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6334 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6338 mono_mb_emit_ldarg (mb, argnum);
6340 mono_mb_emit_ldarg_addr (mb, argnum);
6341 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6342 mono_mb_emit_stloc (mb, conv_arg);
6346 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6347 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6348 mono_mb_emit_ldloc (mb, conv_arg);
6349 mono_mb_emit_ldarg (mb, argnum);
6350 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6355 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6356 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6357 mono_mb_emit_exception_marshal_directive (mb, msg);
6362 g_assert_not_reached ();
6368 #endif /* DISABLE_COM */
6369 #endif /* DISABLE_JIT */
6372 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6374 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6375 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6377 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6379 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6391 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6392 MonoMarshalSpec *spec,
6393 int conv_arg, MonoType **conv_arg_type,
6394 MarshalAction action)
6398 case MARSHAL_ACTION_CONV_IN:
6399 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6401 case MARSHAL_ACTION_MANAGED_CONV_IN:
6402 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6406 MonoMethodBuilder *mb = m->mb;
6407 MonoClass *klass = mono_class_from_mono_type (t);
6408 gboolean need_convert, need_free;
6409 MonoMarshalNative encoding;
6411 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6414 case MARSHAL_ACTION_CONV_IN:
6415 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6416 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6418 if (klass->element_class->blittable) {
6419 mono_mb_emit_ldarg (mb, argnum);
6421 mono_mb_emit_byte (mb, CEE_LDIND_I);
6422 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6423 mono_mb_emit_stloc (mb, conv_arg);
6426 guint32 label1, label2, label3;
6427 int index_var, src_var, dest_ptr, esize;
6428 MonoMarshalConv conv;
6429 gboolean is_string = FALSE;
6431 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6433 eklass = klass->element_class;
6435 if (eklass == mono_defaults.string_class) {
6437 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6439 else if (eklass == mono_defaults.stringbuilder_class) {
6441 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6444 conv = MONO_MARSHAL_CONV_INVALID;
6446 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6447 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6448 mono_mb_emit_exception_marshal_directive (mb, msg);
6452 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6453 mono_mb_emit_ldarg (mb, argnum);
6455 mono_mb_emit_byte (mb, CEE_LDIND_I);
6456 mono_mb_emit_stloc (mb, src_var);
6459 mono_mb_emit_ldloc (mb, src_var);
6460 mono_mb_emit_stloc (mb, conv_arg);
6461 mono_mb_emit_ldloc (mb, src_var);
6462 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6465 esize = sizeof (gpointer);
6466 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6467 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6469 esize = mono_class_native_size (eklass, NULL);
6471 /* allocate space for the native struct and store the address */
6472 mono_mb_emit_icon (mb, esize);
6473 mono_mb_emit_ldloc (mb, src_var);
6474 mono_mb_emit_byte (mb, CEE_LDLEN);
6476 if (eklass == mono_defaults.string_class) {
6477 /* Make the array bigger for the terminating null */
6478 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6479 mono_mb_emit_byte (mb, CEE_ADD);
6481 mono_mb_emit_byte (mb, CEE_MUL);
6482 mono_mb_emit_byte (mb, CEE_PREFIX1);
6483 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6484 mono_mb_emit_stloc (mb, conv_arg);
6486 mono_mb_emit_ldloc (mb, conv_arg);
6487 mono_mb_emit_stloc (mb, dest_ptr);
6489 /* Emit marshalling loop */
6490 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6491 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6492 mono_mb_emit_stloc (mb, index_var);
6493 label2 = mono_mb_get_label (mb);
6494 mono_mb_emit_ldloc (mb, index_var);
6495 mono_mb_emit_ldloc (mb, src_var);
6496 mono_mb_emit_byte (mb, CEE_LDLEN);
6497 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6499 /* Emit marshalling code */
6503 mono_mb_emit_ldloc (mb, dest_ptr);
6504 mono_mb_emit_ldloc (mb, src_var);
6505 mono_mb_emit_ldloc (mb, index_var);
6506 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6507 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6508 mono_mb_emit_byte (mb, stind_op);
6510 /* set the src_ptr */
6511 mono_mb_emit_ldloc (mb, src_var);
6512 mono_mb_emit_ldloc (mb, index_var);
6513 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6514 mono_mb_emit_stloc (mb, 0);
6517 mono_mb_emit_ldloc (mb, dest_ptr);
6518 mono_mb_emit_stloc (mb, 1);
6520 /* emit valuetype conversion code */
6521 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6524 mono_mb_emit_add_to_local (mb, index_var, 1);
6525 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6527 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6529 mono_mb_patch_branch (mb, label3);
6531 if (eklass == mono_defaults.string_class) {
6532 /* Null terminate */
6533 mono_mb_emit_ldloc (mb, dest_ptr);
6534 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6535 mono_mb_emit_byte (mb, CEE_STIND_REF);
6538 mono_mb_patch_branch (mb, label1);
6543 case MARSHAL_ACTION_CONV_OUT:
6544 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6545 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);
6546 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6549 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6550 int param_num = spec->data.array_data.param_num;
6551 MonoType *param_type;
6553 param_type = m->sig->params [param_num];
6555 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6556 char *msg = g_strdup ("Not implemented.");
6557 mono_mb_emit_exception_marshal_directive (mb, msg);
6562 mono_mb_emit_ldarg (mb, argnum);
6564 /* Create the managed array */
6565 mono_mb_emit_ldarg (mb, param_num);
6566 if (m->sig->params [param_num]->byref)
6567 // FIXME: Support other types
6568 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6569 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6570 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6571 /* Store into argument */
6572 mono_mb_emit_byte (mb, CEE_STIND_REF);
6576 if (need_convert || need_free) {
6577 /* FIXME: Optimize blittable case */
6579 guint32 label1, label2, label3;
6580 int index_var, src_ptr, loc, esize;
6582 eklass = klass->element_class;
6583 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6584 esize = sizeof (gpointer);
6585 else if (eklass == mono_defaults.char_class)
6586 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6588 esize = mono_class_native_size (eklass, NULL);
6589 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6590 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6593 mono_mb_emit_ldarg (mb, argnum);
6595 mono_mb_emit_byte (mb, CEE_LDIND_I);
6596 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6598 mono_mb_emit_ldloc (mb, conv_arg);
6599 mono_mb_emit_stloc (mb, src_ptr);
6601 /* Emit marshalling loop */
6602 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6603 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6604 mono_mb_emit_stloc (mb, index_var);
6605 label2 = mono_mb_get_label (mb);
6606 mono_mb_emit_ldloc (mb, index_var);
6607 mono_mb_emit_ldarg (mb, argnum);
6609 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6610 mono_mb_emit_byte (mb, CEE_LDLEN);
6611 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6613 /* Emit marshalling code */
6615 if (eklass == mono_defaults.stringbuilder_class) {
6616 gboolean need_free2;
6617 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6619 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6622 mono_mb_emit_ldarg (mb, argnum);
6624 mono_mb_emit_byte (mb, CEE_LDIND_I);
6625 mono_mb_emit_ldloc (mb, index_var);
6626 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6629 mono_mb_emit_ldloc (mb, src_ptr);
6630 mono_mb_emit_byte (mb, CEE_LDIND_I);
6632 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6636 mono_mb_emit_ldloc (mb, src_ptr);
6637 mono_mb_emit_byte (mb, CEE_LDIND_I);
6639 mono_mb_emit_icall (mb, mono_marshal_free);
6642 else if (eklass == mono_defaults.string_class) {
6645 mono_mb_emit_ldloc (mb, src_ptr);
6646 mono_mb_emit_byte (mb, CEE_LDIND_I);
6648 mono_mb_emit_icall (mb, mono_marshal_free);
6653 /* set the src_ptr */
6654 mono_mb_emit_ldloc (mb, src_ptr);
6655 mono_mb_emit_stloc (mb, 0);
6658 mono_mb_emit_ldarg (mb, argnum);
6660 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6661 mono_mb_emit_ldloc (mb, index_var);
6662 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6663 mono_mb_emit_stloc (mb, 1);
6665 /* emit valuetype conversion code */
6666 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6670 mono_mb_emit_ldloc (mb, src_ptr);
6671 mono_mb_emit_stloc (mb, loc);
6672 mono_mb_emit_ldloc (mb, loc);
6674 emit_struct_free (mb, eklass, loc);
6678 mono_mb_emit_add_to_local (mb, index_var, 1);
6679 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6681 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6683 mono_mb_patch_branch (mb, label1);
6684 mono_mb_patch_branch (mb, label3);
6687 if (klass->element_class->blittable) {
6688 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6690 mono_mb_emit_ldarg (mb, argnum);
6692 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6693 mono_mb_emit_ldloc (mb, conv_arg);
6694 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6699 case MARSHAL_ACTION_PUSH:
6701 mono_mb_emit_ldloc_addr (mb, conv_arg);
6703 mono_mb_emit_ldloc (mb, conv_arg);
6706 case MARSHAL_ACTION_CONV_RESULT:
6707 /* fixme: we need conversions here */
6708 mono_mb_emit_stloc (mb, 3);
6711 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6713 guint32 label1, label2, label3;
6714 int index_var, src_ptr, esize, param_num, num_elem;
6715 MonoMarshalConv conv;
6716 gboolean is_string = FALSE;
6718 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6719 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6722 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6723 mono_mb_emit_exception_marshal_directive (mb, msg);
6727 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6728 mono_mb_emit_exception_marshal_directive (mb, msg);
6731 if (spec->native != MONO_NATIVE_LPARRAY) {
6732 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6733 mono_mb_emit_exception_marshal_directive (mb, msg);
6737 /* FIXME: t is from the method which is wrapped, not the delegate type */
6738 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6740 param_num = spec->data.array_data.param_num;
6741 num_elem = spec->data.array_data.num_elem;
6742 if (spec->data.array_data.elem_mult == 0)
6743 /* param_num is not specified */
6746 if (param_num == -1) {
6747 if (num_elem <= 0) {
6748 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6749 mono_mb_emit_exception_marshal_directive (mb, msg);
6754 /* FIXME: Optimize blittable case */
6756 eklass = klass->element_class;
6757 if (eklass == mono_defaults.string_class) {
6759 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6761 else if (eklass == mono_defaults.stringbuilder_class) {
6763 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6766 conv = MONO_MARSHAL_CONV_INVALID;
6768 mono_marshal_load_type_info (eklass);
6771 esize = sizeof (gpointer);
6773 esize = mono_class_native_size (eklass, NULL);
6774 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6776 mono_mb_emit_byte (mb, CEE_LDNULL);
6777 mono_mb_emit_stloc (mb, conv_arg);
6779 /* Check param index */
6780 if (param_num != -1) {
6781 if (param_num >= m->sig->param_count) {
6782 char *msg = g_strdup ("Array size control parameter index is out of range.");
6783 mono_mb_emit_exception_marshal_directive (mb, msg);
6786 switch (m->sig->params [param_num]->type) {
6799 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6800 mono_mb_emit_exception_marshal_directive (mb, msg);
6807 mono_mb_emit_ldarg (mb, argnum);
6808 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6810 mono_mb_emit_ldarg (mb, argnum);
6811 mono_mb_emit_stloc (mb, src_ptr);
6813 /* Create managed array */
6815 * The LPArray marshalling spec says that sometimes param_num starts
6816 * from 1, sometimes it starts from 0. But MS seems to allways start
6820 if (param_num == -1) {
6821 mono_mb_emit_icon (mb, num_elem);
6823 mono_mb_emit_ldarg (mb, param_num);
6825 mono_mb_emit_icon (mb, num_elem);
6826 mono_mb_emit_byte (mb, CEE_ADD);
6828 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6831 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6832 mono_mb_emit_stloc (mb, conv_arg);
6834 if (eklass->blittable) {
6835 mono_mb_emit_ldloc (mb, conv_arg);
6836 mono_mb_emit_byte (mb, CEE_CONV_I);
6837 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6838 mono_mb_emit_byte (mb, CEE_ADD);
6839 mono_mb_emit_ldarg (mb, argnum);
6840 mono_mb_emit_ldloc (mb, conv_arg);
6841 mono_mb_emit_byte (mb, CEE_LDLEN);
6842 mono_mb_emit_icon (mb, esize);
6843 mono_mb_emit_byte (mb, CEE_MUL);
6844 mono_mb_emit_byte (mb, CEE_PREFIX1);
6845 mono_mb_emit_byte (mb, CEE_CPBLK);
6846 mono_mb_patch_branch (mb, label1);
6850 /* Emit marshalling loop */
6851 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6852 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6853 mono_mb_emit_stloc (mb, index_var);
6854 label2 = mono_mb_get_label (mb);
6855 mono_mb_emit_ldloc (mb, index_var);
6856 mono_mb_emit_ldloc (mb, conv_arg);
6857 mono_mb_emit_byte (mb, CEE_LDLEN);
6858 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6860 /* Emit marshalling code */
6862 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6864 mono_mb_emit_ldloc (mb, conv_arg);
6865 mono_mb_emit_ldloc (mb, index_var);
6867 mono_mb_emit_ldloc (mb, src_ptr);
6868 mono_mb_emit_byte (mb, CEE_LDIND_I);
6870 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6871 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6874 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6875 mono_mb_emit_exception_marshal_directive (mb, msg);
6879 mono_mb_emit_add_to_local (mb, index_var, 1);
6880 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6882 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6884 mono_mb_patch_branch (mb, label1);
6885 mono_mb_patch_branch (mb, label3);
6889 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6891 guint32 label1, label2, label3;
6892 int index_var, dest_ptr, esize, param_num, num_elem;
6893 MonoMarshalConv conv;
6894 gboolean is_string = FALSE;
6897 /* Already handled in CONV_IN */
6900 /* These are already checked in CONV_IN */
6901 g_assert (!t->byref);
6902 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6903 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6905 param_num = spec->data.array_data.param_num;
6906 num_elem = spec->data.array_data.num_elem;
6908 if (spec->data.array_data.elem_mult == 0)
6909 /* param_num is not specified */
6912 if (param_num == -1) {
6913 if (num_elem <= 0) {
6914 g_assert_not_reached ();
6918 /* FIXME: Optimize blittable case */
6920 eklass = klass->element_class;
6921 if (eklass == mono_defaults.string_class) {
6923 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6925 else if (eklass == mono_defaults.stringbuilder_class) {
6927 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6930 conv = MONO_MARSHAL_CONV_INVALID;
6932 mono_marshal_load_type_info (eklass);
6935 esize = sizeof (gpointer);
6937 esize = mono_class_native_size (eklass, NULL);
6939 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6942 mono_mb_emit_ldloc (mb, conv_arg);
6943 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6945 mono_mb_emit_ldarg (mb, argnum);
6946 mono_mb_emit_stloc (mb, dest_ptr);
6948 if (eklass->blittable) {
6950 mono_mb_emit_ldarg (mb, argnum);
6952 mono_mb_emit_ldloc (mb, conv_arg);
6953 mono_mb_emit_byte (mb, CEE_CONV_I);
6954 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6955 mono_mb_emit_byte (mb, CEE_ADD);
6957 mono_mb_emit_ldloc (mb, conv_arg);
6958 mono_mb_emit_byte (mb, CEE_LDLEN);
6959 mono_mb_emit_icon (mb, esize);
6960 mono_mb_emit_byte (mb, CEE_MUL);
6961 mono_mb_emit_byte (mb, CEE_PREFIX1);
6962 mono_mb_emit_byte (mb, CEE_CPBLK);
6966 /* Emit marshalling loop */
6967 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6968 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6969 mono_mb_emit_stloc (mb, index_var);
6970 label2 = mono_mb_get_label (mb);
6971 mono_mb_emit_ldloc (mb, index_var);
6972 mono_mb_emit_ldloc (mb, conv_arg);
6973 mono_mb_emit_byte (mb, CEE_LDLEN);
6974 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6976 /* Emit marshalling code */
6979 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6982 mono_mb_emit_ldloc (mb, dest_ptr);
6985 mono_mb_emit_ldloc (mb, conv_arg);
6986 mono_mb_emit_ldloc (mb, index_var);
6988 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6990 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6991 mono_mb_emit_byte (mb, stind_op);
6994 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6995 mono_mb_emit_exception_marshal_directive (mb, msg);
6999 mono_mb_emit_add_to_local (mb, index_var, 1);
7000 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7002 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7004 mono_mb_patch_branch (mb, label1);
7005 mono_mb_patch_branch (mb, label3);
7009 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7011 guint32 label1, label2, label3;
7012 int index_var, src, dest, esize;
7013 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
7014 gboolean is_string = FALSE;
7016 g_assert (!t->byref);
7018 eklass = klass->element_class;
7020 mono_marshal_load_type_info (eklass);
7022 if (eklass == mono_defaults.string_class) {
7024 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7027 g_assert_not_reached ();
7031 esize = sizeof (gpointer);
7032 else if (eklass == mono_defaults.char_class)
7033 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7035 esize = mono_class_native_size (eklass, NULL);
7037 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7038 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7040 mono_mb_emit_stloc (mb, src);
7041 mono_mb_emit_ldloc (mb, src);
7042 mono_mb_emit_stloc (mb, 3);
7044 /* Check for null */
7045 mono_mb_emit_ldloc (mb, src);
7046 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7048 /* Allocate native array */
7049 mono_mb_emit_icon (mb, esize);
7050 mono_mb_emit_ldloc (mb, src);
7051 mono_mb_emit_byte (mb, CEE_LDLEN);
7053 if (eklass == mono_defaults.string_class) {
7054 /* Make the array bigger for the terminating null */
7055 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7056 mono_mb_emit_byte (mb, CEE_ADD);
7058 mono_mb_emit_byte (mb, CEE_MUL);
7059 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
7060 mono_mb_emit_stloc (mb, dest);
7061 mono_mb_emit_ldloc (mb, dest);
7062 mono_mb_emit_stloc (mb, 3);
7064 /* Emit marshalling loop */
7065 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7066 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7067 mono_mb_emit_stloc (mb, index_var);
7068 label2 = mono_mb_get_label (mb);
7069 mono_mb_emit_ldloc (mb, index_var);
7070 mono_mb_emit_ldloc (mb, src);
7071 mono_mb_emit_byte (mb, CEE_LDLEN);
7072 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7074 /* Emit marshalling code */
7077 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7080 mono_mb_emit_ldloc (mb, dest);
7083 mono_mb_emit_ldloc (mb, src);
7084 mono_mb_emit_ldloc (mb, index_var);
7086 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7088 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7089 mono_mb_emit_byte (mb, stind_op);
7092 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7093 mono_mb_emit_exception_marshal_directive (mb, msg);
7097 mono_mb_emit_add_to_local (mb, index_var, 1);
7098 mono_mb_emit_add_to_local (mb, dest, esize);
7100 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7102 mono_mb_patch_branch (mb, label3);
7103 mono_mb_patch_branch (mb, label1);
7107 g_assert_not_reached ();
7114 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
7117 return &mono_defaults.int32_class->byval_arg;
7119 switch (spec->native) {
7120 case MONO_NATIVE_I1:
7121 case MONO_NATIVE_U1:
7122 return &mono_defaults.byte_class->byval_arg;
7123 case MONO_NATIVE_VARIANTBOOL:
7124 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
7125 return &mono_defaults.int16_class->byval_arg;
7126 case MONO_NATIVE_BOOLEAN:
7127 return &mono_defaults.int32_class->byval_arg;
7129 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7130 return &mono_defaults.int32_class->byval_arg;
7136 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
7138 MonoClass* conv_arg_class = mono_defaults.int32_class;
7140 switch (spec->native) {
7141 case MONO_NATIVE_I1:
7142 case MONO_NATIVE_U1:
7143 conv_arg_class = mono_defaults.byte_class;
7144 if (ldop) *ldop = CEE_LDIND_I1;
7146 case MONO_NATIVE_VARIANTBOOL:
7147 conv_arg_class = mono_defaults.int16_class;
7148 if (ldop) *ldop = CEE_LDIND_I2;
7150 case MONO_NATIVE_BOOLEAN:
7153 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7156 return conv_arg_class;
7160 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7161 MonoMarshalSpec *spec,
7162 int conv_arg, MonoType **conv_arg_type,
7163 MarshalAction action)
7167 case MARSHAL_ACTION_CONV_IN:
7169 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7171 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7174 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7175 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7177 *conv_arg_type = &conv_arg_class->this_arg;
7179 *conv_arg_type = &conv_arg_class->byval_arg;
7185 MonoMethodBuilder *mb = m->mb;
7188 case MARSHAL_ACTION_CONV_IN: {
7189 MonoType *local_type;
7191 guint8 ldc_op = CEE_LDC_I4_1;
7193 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7195 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7197 *conv_arg_type = local_type;
7198 conv_arg = mono_mb_add_local (mb, local_type);
7200 mono_mb_emit_ldarg (mb, argnum);
7202 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7203 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7204 mono_mb_emit_byte (mb, ldc_op);
7205 mono_mb_emit_stloc (mb, conv_arg);
7206 mono_mb_patch_branch (mb, label_false);
7211 case MARSHAL_ACTION_CONV_OUT:
7213 int label_false, label_end;
7217 mono_mb_emit_ldarg (mb, argnum);
7218 mono_mb_emit_ldloc (mb, conv_arg);
7220 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7221 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7223 label_end = mono_mb_emit_branch (mb, CEE_BR);
7224 mono_mb_patch_branch (mb, label_false);
7225 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7226 mono_mb_patch_branch (mb, label_end);
7228 mono_mb_emit_byte (mb, CEE_STIND_I1);
7232 case MARSHAL_ACTION_PUSH:
7234 mono_mb_emit_ldloc_addr (mb, conv_arg);
7236 mono_mb_emit_ldloc (mb, conv_arg);
7238 mono_mb_emit_ldarg (mb, argnum);
7241 case MARSHAL_ACTION_CONV_RESULT:
7242 /* maybe we need to make sure that it fits within 8 bits */
7243 mono_mb_emit_stloc (mb, 3);
7246 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7247 MonoClass* conv_arg_class = mono_defaults.int32_class;
7248 guint8 ldop = CEE_LDIND_I4;
7249 int label_null, label_false;
7251 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7252 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7255 *conv_arg_type = &conv_arg_class->this_arg;
7257 *conv_arg_type = &conv_arg_class->byval_arg;
7260 mono_mb_emit_ldarg (mb, argnum);
7264 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7265 mono_mb_emit_ldarg (mb, argnum);
7266 mono_mb_emit_byte (mb, ldop);
7270 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7271 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7272 mono_mb_emit_stloc (mb, conv_arg);
7273 mono_mb_patch_branch (mb, label_false);
7276 mono_mb_patch_branch (mb, label_null);
7280 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7281 guint8 stop = CEE_STIND_I4;
7282 guint8 ldc_op = CEE_LDC_I4_1;
7283 int label_null,label_false, label_end;;
7288 switch (spec->native) {
7289 case MONO_NATIVE_I1:
7290 case MONO_NATIVE_U1:
7291 stop = CEE_STIND_I1;
7293 case MONO_NATIVE_VARIANTBOOL:
7294 stop = CEE_STIND_I2;
7295 ldc_op = CEE_LDC_I4_M1;
7303 mono_mb_emit_ldarg (mb, argnum);
7304 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7306 mono_mb_emit_ldarg (mb, argnum);
7307 mono_mb_emit_ldloc (mb, conv_arg);
7309 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7310 mono_mb_emit_byte (mb, ldc_op);
7311 label_end = mono_mb_emit_branch (mb, CEE_BR);
7313 mono_mb_patch_branch (mb, label_false);
7314 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7315 mono_mb_patch_branch (mb, label_end);
7317 mono_mb_emit_byte (mb, stop);
7318 mono_mb_patch_branch (mb, label_null);
7323 g_assert_not_reached ();
7330 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7331 MonoMarshalSpec *spec, int conv_arg,
7332 MonoType **conv_arg_type, MarshalAction action)
7335 MonoMethodBuilder *mb = m->mb;
7338 case MARSHAL_ACTION_CONV_IN:
7339 /* MS seems to allow this in some cases, ie. bxc #158 */
7341 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7342 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7343 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7348 case MARSHAL_ACTION_PUSH:
7349 mono_mb_emit_ldarg (mb, argnum);
7352 case MARSHAL_ACTION_CONV_RESULT:
7353 /* no conversions necessary */
7354 mono_mb_emit_stloc (mb, 3);
7365 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7366 MonoMarshalSpec *spec, int conv_arg,
7367 MonoType **conv_arg_type, MarshalAction action)
7370 MonoMethodBuilder *mb = m->mb;
7373 case MARSHAL_ACTION_PUSH:
7374 /* fixme: dont know how to marshal that. We cant simply
7375 * convert it to a one byte UTF8 character, because an
7376 * unicode character may need more that one byte in UTF8 */
7377 mono_mb_emit_ldarg (mb, argnum);
7380 case MARSHAL_ACTION_CONV_RESULT:
7381 /* fixme: we need conversions here */
7382 mono_mb_emit_stloc (mb, 3);
7393 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7394 MonoMarshalSpec *spec, int conv_arg,
7395 MonoType **conv_arg_type, MarshalAction action)
7398 MonoMethodBuilder *mb = m->mb;
7401 case MARSHAL_ACTION_PUSH:
7402 mono_mb_emit_ldarg (mb, argnum);
7405 case MARSHAL_ACTION_CONV_RESULT:
7406 /* no conversions necessary */
7407 mono_mb_emit_stloc (mb, 3);
7418 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7419 MonoMarshalSpec *spec, int conv_arg,
7420 MonoType **conv_arg_type, MarshalAction action)
7422 /* Ensure that we have marshalling info for this param */
7423 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7425 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7426 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7428 if (spec && spec->native == MONO_NATIVE_ASANY)
7429 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7432 case MONO_TYPE_VALUETYPE:
7433 if (t->data.klass == mono_defaults.handleref_class)
7434 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7436 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7437 case MONO_TYPE_STRING:
7438 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7439 case MONO_TYPE_CLASS:
7440 case MONO_TYPE_OBJECT:
7441 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7442 if (spec && spec->native == MONO_NATIVE_STRUCT)
7443 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7446 #if !defined(DISABLE_COM)
7447 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7448 spec->native == MONO_NATIVE_IDISPATCH ||
7449 spec->native == MONO_NATIVE_INTERFACE))
7450 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7451 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7452 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7453 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7454 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7457 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7458 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7459 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7461 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7462 case MONO_TYPE_ARRAY:
7463 case MONO_TYPE_SZARRAY:
7464 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7465 case MONO_TYPE_BOOLEAN:
7466 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7468 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7469 case MONO_TYPE_CHAR:
7470 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7483 case MONO_TYPE_FNPTR:
7484 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7485 case MONO_TYPE_GENERICINST:
7486 if (mono_type_generic_inst_is_valuetype (t))
7487 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7489 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7497 * mono_marshal_emit_native_wrapper:
7498 * @image: the image to use for looking up custom marshallers
7499 * @sig: The signature of the native function
7500 * @piinfo: Marshalling information
7501 * @mspecs: Marshalling information
7502 * @aot: whenever the created method will be compiled by the AOT compiler
7503 * @method: if non-NULL, the pinvoke method to call
7504 * @check_exceptions: Whenever to check for pending exceptions after the native call
7505 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7507 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7510 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)
7512 EmitMarshalContext m;
7513 MonoMethodSignature *csig;
7515 int i, argnum, *tmp_locals;
7516 int type, param_shift = 0;
7517 int coop_gc_stack_dummy, coop_gc_var;
7519 memset (&m, 0, sizeof (m));
7524 /* we copy the signature, so that we can set pinvoke to 0 */
7526 /* The function address is passed as the first argument */
7527 g_assert (!sig->hasthis);
7530 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7538 /* we allocate local for use with emit_struct_conv() */
7539 /* allocate local 0 (pointer) src_ptr */
7540 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7541 /* allocate local 1 (pointer) dst_ptr */
7542 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7543 /* allocate local 2 (boolean) delete_old */
7544 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7546 /* delete_old = FALSE */
7547 mono_mb_emit_icon (mb, 0);
7548 mono_mb_emit_stloc (mb, 2);
7550 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7551 /* allocate local 3 to store the return value */
7552 mono_mb_add_local (mb, sig->ret);
7555 if (mono_threads_is_coop_enabled ()) {
7556 /* local 4, dummy local used to get a stack address for suspend funcs */
7557 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7558 /* local 5, the local to be used when calling the suspend funcs */
7559 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7563 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7565 * ret = method (...);
7567 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7574 if (MONO_TYPE_ISSTRUCT (sig->ret))
7575 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7577 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7578 /* Return type custom marshaling */
7580 * Since we can't determine the return type of the unmanaged function,
7581 * we assume it returns a pointer, and pass that pointer to
7582 * MarshalNativeToManaged.
7584 csig->ret = &mono_defaults.int_class->byval_arg;
7587 /* we first do all conversions */
7588 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7589 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7591 for (i = 0; i < sig->param_count; i ++) {
7592 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7595 // In coop mode need to register blocking state during native call
7596 if (mono_threads_is_coop_enabled ()) {
7597 // Perform an extra, early lookup of the function address, so any exceptions
7598 // potentially resulting from the lookup occur before entering blocking mode.
7599 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7600 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7601 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7602 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7605 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7606 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7607 mono_mb_emit_stloc (mb, coop_gc_var);
7610 /* push all arguments */
7613 mono_mb_emit_byte (mb, CEE_LDARG_0);
7615 for (i = 0; i < sig->param_count; i++) {
7616 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7619 /* call the native method */
7621 mono_mb_emit_byte (mb, CEE_LDARG_0);
7622 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7623 mono_mb_emit_byte (mb, CEE_LDIND_I);
7624 mono_mb_emit_calli (mb, csig);
7625 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7627 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7629 g_assert_not_reached ();
7633 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7634 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7635 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7636 mono_mb_emit_calli (mb, csig);
7638 mono_mb_emit_native_call (mb, csig, func);
7642 /* Set LastError if needed */
7643 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7646 static MonoMethodSignature *get_last_error_sig = NULL;
7647 if (!get_last_error_sig) {
7648 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7649 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7650 get_last_error_sig->pinvoke = 1;
7654 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7655 * clobber its value.
7657 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7658 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7660 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7661 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7662 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7665 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7669 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7670 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7671 mono_class_init (klass);
7672 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
7673 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7674 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7675 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7676 mono_mb_emit_stloc (mb, m.vtaddr_var);
7680 /* Unblock before converting the result, since that can involve calls into the runtime */
7681 if (mono_threads_is_coop_enabled ()) {
7682 mono_mb_emit_ldloc (mb, coop_gc_var);
7683 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7684 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7687 /* convert the result */
7688 if (!sig->ret->byref) {
7689 MonoMarshalSpec *spec = mspecs [0];
7690 type = sig->ret->type;
7692 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7693 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7697 case MONO_TYPE_VOID:
7699 case MONO_TYPE_VALUETYPE:
7700 klass = sig->ret->data.klass;
7701 if (klass->enumtype) {
7702 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7705 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7719 case MONO_TYPE_FNPTR:
7720 case MONO_TYPE_STRING:
7721 case MONO_TYPE_CLASS:
7722 case MONO_TYPE_OBJECT:
7723 case MONO_TYPE_BOOLEAN:
7724 case MONO_TYPE_ARRAY:
7725 case MONO_TYPE_SZARRAY:
7726 case MONO_TYPE_CHAR:
7728 case MONO_TYPE_GENERICINST:
7729 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7731 case MONO_TYPE_TYPEDBYREF:
7733 g_warning ("return type 0x%02x unknown", sig->ret->type);
7734 g_assert_not_reached ();
7738 mono_mb_emit_stloc (mb, 3);
7742 * Need to call this after converting the result since MONO_VTADDR needs
7743 * to be adjacent to the call instruction.
7745 if (check_exceptions)
7746 emit_thread_interrupt_checkpoint (mb);
7748 /* we need to convert byref arguments back and free string arrays */
7749 for (i = 0; i < sig->param_count; i++) {
7750 MonoType *t = sig->params [i];
7751 MonoMarshalSpec *spec = mspecs [i + 1];
7753 argnum = i + param_shift;
7755 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7756 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7761 case MONO_TYPE_STRING:
7762 case MONO_TYPE_VALUETYPE:
7763 case MONO_TYPE_CLASS:
7764 case MONO_TYPE_OBJECT:
7765 case MONO_TYPE_SZARRAY:
7766 case MONO_TYPE_BOOLEAN:
7767 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7774 if (!MONO_TYPE_IS_VOID(sig->ret))
7775 mono_mb_emit_ldloc (mb, 3);
7777 mono_mb_emit_byte (mb, CEE_RET);
7779 #endif /* DISABLE_JIT */
7782 * mono_marshal_get_native_wrapper:
7783 * @method: The MonoMethod to wrap.
7784 * @check_exceptions: Whenever to check for pending exceptions
7786 * generates IL code for the pinvoke wrapper (the generated method
7787 * calls the unmanaged code in piinfo->addr)
7790 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7792 MonoMethodSignature *sig, *csig;
7793 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7794 MonoMethodBuilder *mb;
7795 MonoMarshalSpec **mspecs;
7798 gboolean pinvoke = FALSE;
7801 const char *exc_class = "MissingMethodException";
7802 const char *exc_arg = NULL;
7805 g_assert (method != NULL);
7806 g_assert (mono_method_signature (method)->pinvoke);
7808 GHashTable **cache_ptr;
7811 if (check_exceptions)
7812 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7814 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7816 if (check_exceptions)
7817 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7819 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7822 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7824 if ((res = mono_marshal_find_in_cache (cache, method)))
7827 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7828 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7832 return mono_cominterop_get_native_wrapper (method);
7834 g_assert_not_reached ();
7838 sig = mono_method_signature (method);
7840 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7841 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7844 if (!piinfo->addr) {
7846 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7847 exc_arg = "Method contains unsupported native code";
7849 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7851 piinfo->addr = mono_lookup_internal_call (method);
7855 /* hack - redirect certain string constructors to CreateString */
7856 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7857 g_assert (!pinvoke);
7858 g_assert (method->string_ctor);
7859 g_assert (sig->hasthis);
7861 /* CreateString returns a value */
7862 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7863 csig->ret = &mono_defaults.string_class->byval_arg;
7867 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7868 if (!strcmp ("CreateString", res->name) &&
7869 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7872 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7873 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7875 /* create a wrapper to preserve .ctor in stack trace */
7876 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7879 mono_mb_emit_byte (mb, CEE_LDARG_0);
7880 for (i = 1; i <= csig->param_count; i++)
7881 mono_mb_emit_ldarg (mb, i);
7882 mono_mb_emit_managed_call (mb, res, NULL);
7883 mono_mb_emit_byte (mb, CEE_RET);
7886 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7887 info->d.string_ctor.method = method;
7889 /* use native_wrapper_cache because internal calls are looked up there */
7890 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7891 csig->param_count + 1, info, NULL);
7898 /* exception will be thrown */
7899 piinfo->addr = NULL;
7900 g_warning ("cannot find CreateString for .ctor");
7903 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7905 mb->method->save_lmf = 1;
7908 * In AOT mode and embedding scenarios, it is possible that the icall is not
7909 * registered in the runtime doing the AOT compilation.
7911 if (!piinfo->addr && !aot) {
7913 mono_mb_emit_exception (mb, exc_class, exc_arg);
7915 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7916 info->d.managed_to_native.method = method;
7918 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7920 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7921 csig->param_count + 16, info, NULL);
7927 /* internal calls: we simply push all arguments and call the method (no conversions) */
7928 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7930 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7932 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7934 //printf ("%s\n", mono_method_full_name (method, 1));
7936 /* hack - string constructors returns a value */
7937 if (method->string_ctor)
7938 csig->ret = &mono_defaults.string_class->byval_arg;
7942 MonoClass *handle_stack_mark_class;
7943 MonoClass *error_class;
7944 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
7945 MonoMethodSignature *call_sig = csig;
7946 gboolean uses_handles = FALSE;
7947 gboolean has_outarg_handles = FALSE;
7948 int *outarg_handle = NULL;
7949 (void) mono_lookup_internal_call_full (method, &uses_handles);
7952 /* If it uses handles and MonoError, it had better check exceptions */
7953 g_assert (!uses_handles || check_exceptions);
7956 MonoMethodSignature *ret;
7958 /* Add a MonoError argument */
7959 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
7960 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
7962 ret->param_count = csig->param_count + 1;
7963 ret->ret = csig->ret;
7964 for (int i = 0; i < csig->param_count; ++i) {
7965 if (MONO_TYPE_IS_REFERENCE (csig->params[i])) {
7966 ret->params [i] = mono_class_get_byref_type (mono_class_from_mono_type(csig->params[i]));
7967 if (mono_signature_param_is_out (csig, i)) {
7968 has_outarg_handles = TRUE;
7971 ret->params [i] = csig->params [i];
7973 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
7974 ret->pinvoke = csig->pinvoke;
7980 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
7981 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
7983 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
7984 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
7985 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
7987 if (has_outarg_handles) {
7988 outarg_handle = g_new0 (int, sig->param_count);
7990 /* add a local var to hold the handles for each out arg */
7991 for (int i = 0; i < sig->param_count; ++i) {
7992 if (mono_signature_param_is_out (sig, i) && MONO_TYPE_IS_REFERENCE (sig->params[i])) {
7993 outarg_handle[i] = mono_mb_add_local (mb, sig->params[i]);
7994 } else if (outarg_handle != NULL)
7995 outarg_handle[i] = -1;
8004 * Add a null check since public icalls can be called with 'call' which
8005 * does no such check.
8007 mono_mb_emit_byte (mb, CEE_LDARG_0);
8008 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8009 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8010 mono_mb_patch_branch (mb, pos);
8014 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8015 mono_mb_emit_ldloc_addr (mb, error_var);
8016 mono_mb_emit_icall (mb, mono_icall_start);
8017 mono_mb_emit_stloc (mb, thread_info_var);
8020 mono_mb_emit_byte (mb, CEE_LDARG_0);
8021 mono_mb_emit_icall (mb, mono_handle_new);
8023 for (i = 0; i < sig->param_count; i++) {
8024 /* load each argument. object reference arguments get wrapped in handles */
8026 if (!MONO_TYPE_IS_REFERENCE (sig->params [i])) {
8027 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8029 if (outarg_handle && outarg_handle[i] != -1) {
8030 /* handleI = argI = mono_handle_new (NULL) */
8031 mono_mb_emit_byte (mb, CEE_LDNULL);
8032 mono_mb_emit_icall (mb, mono_handle_new);
8034 mono_mb_emit_byte (mb, CEE_DUP);
8036 mono_mb_emit_stloc (mb, outarg_handle[i]);
8038 /* argI = mono_handle_new (argI_raw) */
8039 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8040 mono_mb_emit_icall (mb, mono_handle_new);
8044 mono_mb_emit_ldloc_addr (mb, error_var);
8047 mono_mb_emit_byte (mb, CEE_LDARG_0);
8048 for (i = 0; i < sig->param_count; i++)
8049 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8053 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8054 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8055 mono_mb_emit_calli (mb, call_sig);
8057 g_assert (piinfo->addr);
8058 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
8062 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
8063 // if (ret != NULL_HANDLE) {
8064 // ret = MONO_HANDLE_RAW(ret)
8066 mono_mb_emit_byte (mb, CEE_DUP);
8067 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8068 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8069 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8070 mono_mb_patch_branch (mb, pos);
8072 if (outarg_handle != NULL) {
8073 for (i = 0; i < sig->param_count; i++) {
8074 if (outarg_handle[i] != -1) {
8075 /* *argI_raw = MONO_HANDLE_RAW (handleI) */
8078 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8080 mono_mb_emit_ldloc (mb, outarg_handle[i]);
8081 /* MONO_HANDLE_RAW(handleI) */
8082 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8083 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8084 /* *argI_raw = MONO_HANDLE_RAW(handleI) */
8085 mono_mb_emit_byte (mb, CEE_STIND_REF);
8088 g_free (outarg_handle);
8089 outarg_handle = NULL;
8091 mono_mb_emit_ldloc (mb, thread_info_var);
8092 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8093 mono_mb_emit_ldloc_addr (mb, error_var);
8094 mono_mb_emit_icall (mb, mono_icall_end);
8097 if (check_exceptions)
8098 emit_thread_interrupt_checkpoint (mb);
8099 mono_mb_emit_byte (mb, CEE_RET);
8101 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8102 info->d.managed_to_native.method = method;
8104 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
8106 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8115 g_assert (piinfo->addr);
8118 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8119 mono_method_get_marshal_info (method, mspecs);
8121 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
8123 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
8124 info->d.managed_to_native.method = method;
8126 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8128 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8133 for (i = sig->param_count; i >= 0; i--)
8135 mono_metadata_free_marshal_spec (mspecs [i]);
8139 /* mono_method_print_code (res); */
8145 * mono_marshal_get_native_func_wrapper:
8146 * @image: The image to use for memory allocation and for looking up custom marshallers.
8147 * @sig: The signature of the function
8148 * @func: The native function to wrap
8150 * Returns a wrapper method around native functions, similar to the pinvoke
8154 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8155 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8157 MonoMethodSignature *csig;
8159 SignaturePointerPair key, *new_key;
8160 MonoMethodBuilder *mb;
8169 // Generic types are not safe to place in MonoImage caches.
8170 g_assert (!sig->is_inflated);
8172 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
8173 if ((res = mono_marshal_find_in_cache (cache, &key)))
8176 name = g_strdup_printf ("wrapper_native_%p", func);
8177 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8178 mb->method->save_lmf = 1;
8181 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8184 csig = mono_metadata_signature_dup_full (image, sig);
8187 new_key = g_new (SignaturePointerPair,1);
8188 new_key->sig = csig;
8189 new_key->pointer = func;
8191 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
8197 mono_marshal_set_wrapper_info (res, NULL);
8203 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8207 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8209 MonoMethodSignature *sig, *csig;
8210 MonoMethodBuilder *mb;
8215 MonoMethodPInvoke mpiinfo;
8216 MonoMethodPInvoke *piinfo = &mpiinfo;
8217 MonoMarshalSpec **mspecs;
8218 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8219 MonoImage *image = invoke->klass->image;
8222 // FIXME: include UnmanagedFunctionPointerAttribute info
8225 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8227 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8229 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8232 memset (&mpiinfo, 0, sizeof (mpiinfo));
8233 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8235 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8236 mono_method_get_marshal_info (invoke, mspecs);
8237 /* Freed below so don't alloc from mempool */
8238 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8241 name = g_strdup_printf ("wrapper_aot_native");
8242 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8243 mb->method->save_lmf = 1;
8246 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8249 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8250 info->d.managed_to_native.method = invoke;
8252 g_assert (!sig->hasthis);
8253 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8255 res = mono_mb_create_and_cache_full (cache, invoke,
8256 mb, csig, csig->param_count + 16,
8260 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8262 mono_metadata_free_marshal_spec (mspecs [i]);
8270 * mono_marshal_emit_managed_wrapper:
8272 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8273 * the delegate which wraps the managed method to be called. For closed delegates,
8274 * it could have fewer parameters than the method it wraps.
8275 * THIS_LOC is the memory location where the target of the delegate is stored.
8278 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8281 MonoMethodSignature *sig, *csig;
8287 /* we first do all conversions */
8288 for (i = 0; i < sig->param_count; i ++) {
8289 MonoType *t = sig->params [i];
8292 case MONO_TYPE_OBJECT:
8293 case MONO_TYPE_CLASS:
8294 case MONO_TYPE_VALUETYPE:
8295 case MONO_TYPE_ARRAY:
8296 case MONO_TYPE_SZARRAY:
8297 case MONO_TYPE_STRING:
8298 case MONO_TYPE_BOOLEAN:
8299 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8303 if (!sig->ret->byref) {
8304 switch (sig->ret->type) {
8305 case MONO_TYPE_STRING:
8306 csig->ret = &mono_defaults.int_class->byval_arg;
8313 MonoMethodSignature *sig, *csig;
8314 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8315 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8316 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8317 gboolean closed = FALSE;
8322 /* allocate local 0 (pointer) src_ptr */
8323 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8324 /* allocate local 1 (pointer) dst_ptr */
8325 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8326 /* allocate local 2 (boolean) delete_old */
8327 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8329 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8330 /* Closed delegate */
8331 g_assert (sig->param_count == invoke_sig->param_count + 1);
8333 /* Use a new signature without the first argument */
8334 sig = mono_metadata_signature_dup (sig);
8335 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8336 sig->param_count --;
8339 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8340 /* allocate local 3 to store the return value */
8341 mono_mb_add_local (mb, sig->ret);
8344 if (MONO_TYPE_ISSTRUCT (sig->ret))
8345 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8347 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8348 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8350 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8351 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8356 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8357 * mono_threads_attach_coop ();
8361 * ret = method (...);
8362 * } catch (Exception e) {
8363 * ex = mono_gchandle_new (e, false);
8365 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8366 * mono_threads_detach_coop ();
8369 * mono_marshal_ftnptr_eh_callback (ex);
8375 clauses = g_new0 (MonoExceptionClause, 2);
8377 clause_catch = &clauses [0];
8378 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8379 clause_catch->data.catch_class = mono_defaults.exception_class;
8381 clause_finally = &clauses [1];
8382 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8384 mono_mb_emit_icon (mb, 0);
8385 mono_mb_emit_stloc (mb, 2);
8387 mono_mb_emit_icon (mb, -1);
8388 mono_mb_emit_byte (mb, CEE_CONV_U4);
8389 mono_mb_emit_stloc (mb, ex_local);
8392 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8394 if (!mono_threads_is_coop_enabled ()) {
8395 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8396 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8398 /* mono_threads_attach_coop (); */
8399 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8400 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8401 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8402 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8403 mono_mb_emit_stloc (mb, attach_cookie_local);
8406 /* <interrupt check> */
8407 emit_thread_interrupt_checkpoint (mb);
8409 /* we first do all conversions */
8410 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8411 for (i = 0; i < sig->param_count; i ++) {
8412 MonoType *t = sig->params [i];
8415 case MONO_TYPE_OBJECT:
8416 case MONO_TYPE_CLASS:
8417 case MONO_TYPE_VALUETYPE:
8418 case MONO_TYPE_ARRAY:
8419 case MONO_TYPE_SZARRAY:
8420 case MONO_TYPE_STRING:
8421 case MONO_TYPE_BOOLEAN:
8422 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8432 if (target_handle) {
8433 mono_mb_emit_icon (mb, (gint32)target_handle);
8434 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8437 g_assert_not_reached ();
8439 } else if (closed) {
8440 mono_mb_emit_icon (mb, (gint32)target_handle);
8441 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8444 for (i = 0; i < sig->param_count; i++) {
8445 MonoType *t = sig->params [i];
8447 if (tmp_locals [i]) {
8449 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8451 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8454 mono_mb_emit_ldarg (mb, i);
8457 /* ret = method (...) */
8458 mono_mb_emit_managed_call (mb, method, NULL);
8460 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8461 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8462 mono_class_init (klass);
8463 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
8464 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8465 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8466 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8467 mono_mb_emit_stloc (mb, m->vtaddr_var);
8471 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8472 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8473 } else if (!sig->ret->byref) {
8474 switch (sig->ret->type) {
8475 case MONO_TYPE_VOID:
8477 case MONO_TYPE_BOOLEAN:
8480 case MONO_TYPE_CHAR:
8492 case MONO_TYPE_OBJECT:
8493 mono_mb_emit_stloc (mb, 3);
8495 case MONO_TYPE_STRING:
8496 csig->ret = &mono_defaults.int_class->byval_arg;
8497 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8499 case MONO_TYPE_VALUETYPE:
8500 case MONO_TYPE_CLASS:
8501 case MONO_TYPE_SZARRAY:
8502 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8505 g_warning ("return type 0x%02x unknown", sig->ret->type);
8506 g_assert_not_reached ();
8509 mono_mb_emit_stloc (mb, 3);
8512 /* Convert byref arguments back */
8513 for (i = 0; i < sig->param_count; i ++) {
8514 MonoType *t = sig->params [i];
8515 MonoMarshalSpec *spec = mspecs [i + 1];
8517 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8518 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8520 else if (t->byref) {
8522 case MONO_TYPE_CLASS:
8523 case MONO_TYPE_VALUETYPE:
8524 case MONO_TYPE_OBJECT:
8525 case MONO_TYPE_STRING:
8526 case MONO_TYPE_BOOLEAN:
8527 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8533 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8534 /* The [Out] information is encoded in the delegate signature */
8536 case MONO_TYPE_SZARRAY:
8537 case MONO_TYPE_CLASS:
8538 case MONO_TYPE_VALUETYPE:
8539 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8542 g_assert_not_reached ();
8547 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8551 /* catch (Exception e) { */
8552 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8553 clause_catch->handler_offset = mono_mb_get_label (mb);
8555 mono_mb_emit_stloc (mb, e_local);
8557 /* ex = mono_gchandle_new (e, false); */
8558 mono_mb_emit_ldloc (mb, e_local);
8559 mono_mb_emit_icon (mb, 0);
8560 mono_mb_emit_icall (mb, mono_gchandle_new);
8561 mono_mb_emit_stloc (mb, ex_local);
8563 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8566 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8569 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8570 clause_finally->handler_offset = mono_mb_get_label (mb);
8572 if (!mono_threads_is_coop_enabled ()) {
8573 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8574 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8576 /* mono_threads_detach_coop (); */
8577 mono_mb_emit_ldloc (mb, attach_cookie_local);
8578 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8579 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8583 mono_mb_emit_ldloc (mb, ex_local);
8584 mono_mb_emit_icon (mb, -1);
8585 mono_mb_emit_byte (mb, CEE_CONV_U4);
8586 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8588 /* mono_marshal_ftnptr_eh_callback (ex) */
8589 mono_mb_emit_ldloc (mb, ex_local);
8590 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8593 mono_mb_patch_branch (mb, ex_m1_pos);
8595 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8597 /* } [endfinally] */
8598 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8600 mono_mb_patch_branch (mb, leave_try_pos);
8601 mono_mb_patch_branch (mb, leave_catch_pos);
8604 if (m->retobj_var) {
8605 mono_mb_emit_ldloc (mb, m->retobj_var);
8606 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8607 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8610 if (!MONO_TYPE_IS_VOID(sig->ret))
8611 mono_mb_emit_ldloc (mb, 3);
8612 mono_mb_emit_byte (mb, CEE_RET);
8615 mono_mb_set_clauses (mb, 2, clauses);
8623 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8625 MonoMethodSignature *sig;
8630 * Under windows, delegates passed to native code must use the STDCALL
8631 * calling convention.
8633 csig->call_convention = MONO_CALL_STDCALL;
8636 sig = mono_method_signature (method);
8638 /* Change default calling convention if needed */
8639 /* Why is this a modopt ? */
8640 if (sig->ret && sig->ret->num_mods) {
8641 for (i = 0; i < sig->ret->num_mods; ++i) {
8643 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8644 g_assert (mono_error_ok (&error));
8645 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8646 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8647 csig->call_convention = MONO_CALL_C;
8648 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8649 csig->call_convention = MONO_CALL_STDCALL;
8650 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8651 csig->call_convention = MONO_CALL_FASTCALL;
8652 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8653 csig->call_convention = MONO_CALL_THISCALL;
8660 * generates IL code to call managed methods from unmanaged code
8661 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8664 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle, MonoError *error)
8666 MonoMethodSignature *sig, *csig, *invoke_sig;
8667 MonoMethodBuilder *mb;
8668 MonoMethod *res, *invoke;
8669 MonoMarshalSpec **mspecs;
8670 MonoMethodPInvoke piinfo;
8673 EmitMarshalContext m;
8675 g_assert (method != NULL);
8676 mono_error_init (error);
8678 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
8679 mono_error_set_invalid_program (error, "Failed because method (%s) marked PInvokeCallback (managed method) and extern (unmanaged) simultaneously.", mono_method_full_name (method, TRUE));
8684 * FIXME: Should cache the method+delegate type pair, since the same method
8685 * could be called with different delegates, thus different marshalling
8688 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8690 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8693 invoke = mono_get_delegate_invoke (delegate_klass);
8694 invoke_sig = mono_method_signature (invoke);
8696 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8697 mono_method_get_marshal_info (invoke, mspecs);
8699 sig = mono_method_signature (method);
8701 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8703 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8704 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8706 /* we copy the signature, so that we can modify it */
8708 /* Need to free this later */
8709 csig = mono_metadata_signature_dup (invoke_sig);
8711 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8715 memset (&m, 0, sizeof (m));
8721 m.image = method->klass->image;
8723 mono_marshal_set_callconv_from_modopt (invoke, csig);
8725 /* The attribute is only available in Net 2.0 */
8726 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8727 MonoCustomAttrInfo *cinfo;
8728 MonoCustomAttrEntry *attr;
8731 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8732 * contents of the attribute without constructing it, as that might not be
8733 * possible when running in cross-compiling mode.
8735 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, error);
8736 mono_error_assert_ok (error);
8739 for (i = 0; i < cinfo->num_attrs; ++i) {
8740 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8741 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8742 attr = &cinfo->attrs [i];
8748 MonoArray *typed_args, *named_args;
8749 CattrNamedArg *arginfo;
8753 MonoBoolean set_last_error = 0;
8756 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8757 g_assert (mono_error_ok (&error));
8758 g_assert (mono_array_length (typed_args) == 1);
8761 o = mono_array_get (typed_args, MonoObject*, 0);
8762 call_conv = *(gint32*)mono_object_unbox (o);
8765 for (i = 0; i < mono_array_length (named_args); ++i) {
8766 CattrNamedArg *narg = &arginfo [i];
8768 o = mono_array_get (named_args, MonoObject*, i);
8770 g_assert (narg->field);
8771 if (!strcmp (narg->field->name, "CharSet")) {
8772 charset = *(gint32*)mono_object_unbox (o);
8773 } else if (!strcmp (narg->field->name, "SetLastError")) {
8774 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8775 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8776 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8777 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8778 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8780 g_assert_not_reached ();
8786 memset (&piinfo, 0, sizeof (piinfo));
8788 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8790 csig->call_convention = call_conv - 1;
8793 if (cinfo && !cinfo->cached)
8794 mono_custom_attrs_free (cinfo);
8797 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8799 if (!target_handle) {
8802 // FIXME: Associate it with the method+delegate_klass pair
8803 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8804 info->d.native_to_managed.method = method;
8805 info->d.native_to_managed.klass = delegate_klass;
8807 res = mono_mb_create_and_cache_full (cache, method,
8808 mb, csig, sig->param_count + 16,
8814 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8818 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8820 mono_metadata_free_marshal_spec (mspecs [i]);
8823 /* mono_method_print_code (res); */
8829 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8833 MonoMethodSignature *sig;
8834 MonoMethodBuilder *mb;
8839 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8841 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8844 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8845 MonoMethodSignature *csig;
8846 MonoMarshalSpec **mspecs;
8847 EmitMarshalContext m;
8849 sig = mono_method_signature (method);
8850 g_assert (!sig->hasthis);
8852 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8853 mono_method_get_marshal_info (method, mspecs);
8855 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8856 csig = mono_metadata_signature_dup_full (image, sig);
8860 memset (&m, 0, sizeof (m));
8868 mono_marshal_set_callconv_from_modopt (method, csig);
8870 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8872 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8877 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8880 for (i = sig->param_count; i >= 0; i--)
8882 mono_metadata_free_marshal_spec (mspecs [i]);
8885 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8886 mono_error_assert_ok (&error);
8887 return compiled_ptr;
8890 sig = mono_method_signature (method);
8891 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8893 param_count = sig->param_count + sig->hasthis;
8895 for (i = 0; i < param_count; i++)
8896 mono_mb_emit_ldarg (mb, i);
8898 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8899 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8901 mono_mb_emit_op (mb, CEE_CALL, method);
8902 mono_mb_emit_byte (mb, CEE_RET);
8907 method = mono_mb_create (mb, sig, param_count, NULL);
8910 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8911 mono_error_assert_ok (&error);
8912 return compiled_ptr;
8918 * The code directly following this is the cache hit, value positive branch
8920 * This function takes a new method builder with 0 locals and adds two locals
8921 * to create multiple out-branches and the fall through state of having the object
8922 * on the stack after a cache miss
8925 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8926 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8927 MonoMethodBuilder *mb)
8931 /* allocate local 0 (pointer) obj_vtable */
8932 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8933 /* allocate local 1 (pointer) cached_vtable */
8934 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8937 mono_mb_emit_ldarg (mb, obj_arg_position);
8938 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8940 /*obj_vtable = obj->vtable;*/
8941 mono_mb_emit_ldarg (mb, obj_arg_position);
8942 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8943 mono_mb_emit_byte (mb, CEE_LDIND_I);
8944 mono_mb_emit_stloc (mb, 0);
8946 /* cached_vtable = *cache*/
8947 mono_mb_emit_ldarg (mb, cache_arg_position);
8948 mono_mb_emit_byte (mb, CEE_LDIND_I);
8949 mono_mb_emit_stloc (mb, 1);
8951 mono_mb_emit_ldloc (mb, 1);
8952 mono_mb_emit_byte (mb, CEE_LDC_I4);
8953 mono_mb_emit_i4 (mb, ~0x1);
8954 mono_mb_emit_byte (mb, CEE_CONV_I);
8955 mono_mb_emit_byte (mb, CEE_AND);
8956 mono_mb_emit_ldloc (mb, 0);
8957 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8958 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8960 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8961 mono_mb_emit_ldloc (mb, 1);
8962 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8963 mono_mb_emit_byte (mb, CEE_CONV_U);
8964 mono_mb_emit_byte (mb, CEE_AND);
8965 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8966 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8969 mono_mb_patch_branch (mb, cache_miss_pos);
8972 mono_mb_emit_ldarg (mb, obj_arg_position);
8973 mono_mb_emit_ldarg (mb, class_arg_position);
8974 mono_mb_emit_ldarg (mb, cache_arg_position);
8975 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8978 #endif /* DISABLE_JIT */
8981 * This does the equivalent of mono_object_castclass_with_cache.
8984 mono_marshal_get_castclass_with_cache (void)
8986 static MonoMethod *cached;
8988 MonoMethodBuilder *mb;
8989 MonoMethodSignature *sig;
8990 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8993 const int obj_arg_position = 0;
8994 const int class_arg_position = 1;
8995 const int cache_arg_position = 2;
9000 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9001 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9002 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9003 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9004 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9005 sig->ret = &mono_defaults.object_class->byval_arg;
9009 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9010 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9011 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9014 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9015 mono_mb_emit_ldarg (mb, obj_arg_position);
9016 mono_mb_emit_byte (mb, CEE_RET);
9019 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9020 mono_mb_patch_branch (mb, invalid_cast_pos);
9021 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9024 mono_mb_patch_branch (mb, return_null_pos);
9025 mono_mb_emit_byte (mb, CEE_LDNULL);
9026 mono_mb_emit_byte (mb, CEE_RET);
9027 #endif /* DISABLE_JIT */
9029 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9030 res = mono_mb_create (mb, sig, 8, info);
9033 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9034 mono_free_method (res);
9035 mono_metadata_free_method_signature (sig);
9042 /* this is an icall */
9044 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
9047 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
9048 if (mono_error_set_pending_exception (&error))
9051 if (mono_object_is_transparent_proxy (obj))
9054 uintptr_t cache_update = (uintptr_t)obj->vtable;
9056 cache_update = cache_update | 0x1;
9058 *cache = cache_update;
9064 * This does the equivalent of mono_object_isinst_with_cache.
9067 mono_marshal_get_isinst_with_cache (void)
9069 static MonoMethod *cached;
9071 MonoMethodBuilder *mb;
9072 MonoMethodSignature *sig;
9073 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
9076 const int obj_arg_position = 0;
9077 const int class_arg_position = 1;
9078 const int cache_arg_position = 2;
9083 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9084 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9086 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9088 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9090 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9091 sig->ret = &mono_defaults.object_class->byval_arg;
9095 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9096 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9097 // Return the object gotten via the slow path.
9098 mono_mb_emit_byte (mb, CEE_RET);
9101 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9102 mono_mb_patch_branch (mb, return_null_pos);
9103 mono_mb_emit_byte (mb, CEE_LDNULL);
9104 mono_mb_emit_byte (mb, CEE_RET);
9107 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9108 mono_mb_emit_ldarg (mb, obj_arg_position);
9109 mono_mb_emit_byte (mb, CEE_RET);
9112 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9113 res = mono_mb_create (mb, sig, 8, info);
9116 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9117 mono_free_method (res);
9118 mono_metadata_free_method_signature (sig);
9126 * mono_marshal_get_struct_to_ptr:
9129 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9132 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9134 MonoMethodBuilder *mb;
9135 static MonoMethod *stoptr = NULL;
9139 g_assert (klass != NULL);
9141 mono_marshal_load_type_info (klass);
9143 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9144 if (marshal_info->str_to_ptr)
9145 return marshal_info->str_to_ptr;
9148 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9151 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9154 if (klass->blittable) {
9155 mono_mb_emit_byte (mb, CEE_LDARG_1);
9156 mono_mb_emit_byte (mb, CEE_LDARG_0);
9157 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9158 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9159 mono_mb_emit_byte (mb, CEE_PREFIX1);
9160 mono_mb_emit_byte (mb, CEE_CPBLK);
9163 /* allocate local 0 (pointer) src_ptr */
9164 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9165 /* allocate local 1 (pointer) dst_ptr */
9166 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9167 /* allocate local 2 (boolean) delete_old */
9168 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9169 mono_mb_emit_byte (mb, CEE_LDARG_2);
9170 mono_mb_emit_stloc (mb, 2);
9172 /* initialize src_ptr to point to the start of object data */
9173 mono_mb_emit_byte (mb, CEE_LDARG_0);
9174 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9175 mono_mb_emit_stloc (mb, 0);
9177 /* initialize dst_ptr */
9178 mono_mb_emit_byte (mb, CEE_LDARG_1);
9179 mono_mb_emit_stloc (mb, 1);
9181 emit_struct_conv (mb, klass, FALSE);
9184 mono_mb_emit_byte (mb, CEE_RET);
9186 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9187 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9190 mono_marshal_lock ();
9191 if (!marshal_info->str_to_ptr)
9192 marshal_info->str_to_ptr = res;
9194 res = marshal_info->str_to_ptr;
9195 mono_marshal_unlock ();
9200 * mono_marshal_get_ptr_to_struct:
9203 * generates IL code for PtrToStructure (IntPtr src, object structure)
9206 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9208 MonoMethodBuilder *mb;
9209 static MonoMethodSignature *ptostr = NULL;
9213 g_assert (klass != NULL);
9215 mono_marshal_load_type_info (klass);
9217 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9218 if (marshal_info->ptr_to_str)
9219 return marshal_info->ptr_to_str;
9222 MonoMethodSignature *sig;
9224 /* Create the signature corresponding to
9225 static void PtrToStructure (IntPtr ptr, object structure);
9226 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9227 sig = mono_create_icall_signature ("void ptr object");
9228 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9230 mono_memory_barrier ();
9234 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9237 if (klass->blittable) {
9238 mono_mb_emit_byte (mb, CEE_LDARG_1);
9239 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9240 mono_mb_emit_byte (mb, CEE_LDARG_0);
9241 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9242 mono_mb_emit_byte (mb, CEE_PREFIX1);
9243 mono_mb_emit_byte (mb, CEE_CPBLK);
9246 /* allocate local 0 (pointer) src_ptr */
9247 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9248 /* allocate local 1 (pointer) dst_ptr */
9249 mono_mb_add_local (mb, &klass->this_arg);
9251 /* initialize src_ptr to point to the start of object data */
9252 mono_mb_emit_byte (mb, CEE_LDARG_0);
9253 mono_mb_emit_stloc (mb, 0);
9255 /* initialize dst_ptr */
9256 mono_mb_emit_byte (mb, CEE_LDARG_1);
9257 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9258 mono_mb_emit_stloc (mb, 1);
9260 emit_struct_conv (mb, klass, TRUE);
9263 mono_mb_emit_byte (mb, CEE_RET);
9265 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9266 res = mono_mb_create (mb, ptostr, 0, info);
9269 mono_marshal_lock ();
9270 if (!marshal_info->ptr_to_str)
9271 marshal_info->ptr_to_str = res;
9273 res = marshal_info->ptr_to_str;
9274 mono_marshal_unlock ();
9279 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9280 * This is used to avoid infinite recursion since it is hard to determine where to
9281 * replace a method with its synchronized wrapper, and where not.
9282 * The runtime should execute METHOD instead of the wrapper.
9285 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9287 MonoMethodBuilder *mb;
9289 MonoMethodSignature *sig;
9291 MonoGenericContext *ctx = NULL;
9292 MonoGenericContainer *container = NULL;
9294 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9295 ctx = &((MonoMethodInflated*)method)->context;
9296 method = ((MonoMethodInflated*)method)->declaring;
9297 container = mono_method_get_generic_container (method);
9299 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9300 g_assert (container);
9303 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9305 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9306 mono_mb_emit_byte (mb, CEE_RET);
9308 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9310 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9311 info->d.synchronized_inner.method = method;
9312 res = mono_mb_create (mb, sig, 0, info);
9316 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9317 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9323 * generates IL code for the synchronized wrapper: the generated method
9324 * calls METHOD while locking 'this' or the parent type.
9327 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9329 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9330 MonoMethodSignature *sig;
9331 MonoExceptionClause *clause;
9332 MonoMethodBuilder *mb;
9336 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9337 MonoGenericContext *ctx = NULL;
9338 MonoMethod *orig_method = NULL;
9339 MonoGenericContainer *container = NULL;
9343 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9346 /* FIXME: Support generic methods too */
9347 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9348 orig_method = method;
9349 ctx = &((MonoMethodInflated*)method)->context;
9350 method = ((MonoMethodInflated*)method)->declaring;
9351 container = mono_method_get_generic_container (method);
9353 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9354 g_assert (container);
9361 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9362 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9366 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9367 if ((res = mono_marshal_find_in_cache (cache, method)))
9371 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9374 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9376 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9377 info->d.synchronized.method = method;
9380 mb->skip_visibility = 1;
9382 if (!MONO_TYPE_IS_VOID (sig->ret))
9383 ret_local = mono_mb_add_local (mb, sig->ret);
9386 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9387 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9388 mono_class_set_type_load_failure (method->klass, "");
9390 /* This will throw the type load exception when the wrapper is compiled */
9391 mono_mb_emit_byte (mb, CEE_LDNULL);
9392 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9393 mono_mb_emit_byte (mb, CEE_POP);
9395 if (!MONO_TYPE_IS_VOID (sig->ret))
9396 mono_mb_emit_ldloc (mb, ret_local);
9397 mono_mb_emit_byte (mb, CEE_RET);
9400 res = mono_mb_create_and_cache_full (cache, method,
9401 mb, sig, sig->param_count + 16, info, NULL);
9409 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9410 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9412 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9413 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9416 mono_marshal_lock ();
9418 if (!enter_method) {
9419 MonoMethodDesc *desc;
9421 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9422 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9423 g_assert (enter_method);
9424 mono_method_desc_free (desc);
9426 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9427 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9428 g_assert (exit_method);
9429 mono_method_desc_free (desc);
9431 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9432 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9433 g_assert (gettypefromhandle_method);
9434 mono_method_desc_free (desc);
9437 mono_marshal_unlock ();
9440 /* Push this or the type object */
9441 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9442 /* We have special handling for this in the JIT */
9443 int index = mono_mb_add_data (mb, method->klass);
9444 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9445 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9446 mono_mb_emit_i4 (mb, index);
9448 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9451 mono_mb_emit_ldarg (mb, 0);
9452 mono_mb_emit_stloc (mb, this_local);
9454 /* Call Monitor::Enter() */
9455 mono_mb_emit_ldloc (mb, this_local);
9456 mono_mb_emit_ldloc_addr (mb, taken_local);
9457 mono_mb_emit_managed_call (mb, enter_method, NULL);
9459 clause->try_offset = mono_mb_get_label (mb);
9461 /* Call the method */
9463 mono_mb_emit_ldarg (mb, 0);
9464 for (i = 0; i < sig->param_count; i++)
9465 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9469 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9470 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9472 mono_mb_emit_managed_call (mb, method, NULL);
9475 if (!MONO_TYPE_IS_VOID (sig->ret))
9476 mono_mb_emit_stloc (mb, ret_local);
9478 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9480 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9481 clause->handler_offset = mono_mb_get_label (mb);
9483 /* Call Monitor::Exit() if needed */
9484 mono_mb_emit_ldloc (mb, taken_local);
9485 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9486 mono_mb_emit_ldloc (mb, this_local);
9487 mono_mb_emit_managed_call (mb, exit_method, NULL);
9488 mono_mb_patch_branch (mb, pos2);
9489 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9491 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9493 mono_mb_patch_branch (mb, pos);
9494 if (!MONO_TYPE_IS_VOID (sig->ret))
9495 mono_mb_emit_ldloc (mb, ret_local);
9496 mono_mb_emit_byte (mb, CEE_RET);
9498 mono_mb_set_clauses (mb, 1, clause);
9503 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9504 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9506 res = mono_mb_create_and_cache_full (cache, method,
9507 mb, sig, sig->param_count + 16, info, NULL);
9516 * the returned method calls 'method' unboxing the this argument
9519 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9521 MonoMethodSignature *sig = mono_method_signature (method);
9523 MonoMethodBuilder *mb;
9528 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9530 if ((res = mono_marshal_find_in_cache (cache, method)))
9533 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9535 g_assert (sig->hasthis);
9538 mono_mb_emit_ldarg (mb, 0);
9539 mono_mb_emit_icon (mb, sizeof (MonoObject));
9540 mono_mb_emit_byte (mb, CEE_ADD);
9541 for (i = 0; i < sig->param_count; ++i)
9542 mono_mb_emit_ldarg (mb, i + 1);
9543 mono_mb_emit_managed_call (mb, method, NULL);
9544 mono_mb_emit_byte (mb, CEE_RET);
9547 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9548 info->d.unbox.method = method;
9550 res = mono_mb_create_and_cache_full (cache, method,
9551 mb, sig, sig->param_count + 16, info, NULL);
9554 /* mono_method_print_code (res); */
9560 STELEMREF_OBJECT, /*no check at all*/
9561 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9562 STELEMREF_CLASS, /*only the klass->parents check*/
9563 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9564 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9565 STELEMREF_KIND_COUNT
9568 static const char *strelemref_wrapper_name[] = {
9569 "object", "sealed_class", "class", "interface", "complex"
9573 is_monomorphic_array (MonoClass *klass)
9575 MonoClass *element_class;
9576 if (klass->rank != 1)
9579 element_class = klass->element_class;
9580 return mono_class_is_sealed (element_class) || element_class->valuetype;
9584 get_virtual_stelemref_kind (MonoClass *element_class)
9586 if (element_class == mono_defaults.object_class)
9587 return STELEMREF_OBJECT;
9588 if (is_monomorphic_array (element_class))
9589 return STELEMREF_SEALED_CLASS;
9590 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9591 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9592 #ifdef COMPRESSED_INTERFACE_BITMAP
9593 return STELEMREF_COMPLEX;
9595 return STELEMREF_INTERFACE;
9597 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9598 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9599 return STELEMREF_COMPLEX;
9600 if (mono_class_is_sealed (element_class))
9601 return STELEMREF_SEALED_CLASS;
9602 return STELEMREF_CLASS;
9608 load_array_element_address (MonoMethodBuilder *mb)
9610 mono_mb_emit_ldarg (mb, 0);
9611 mono_mb_emit_ldarg (mb, 1);
9612 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9616 load_array_class (MonoMethodBuilder *mb, int aklass)
9618 mono_mb_emit_ldarg (mb, 0);
9619 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9620 mono_mb_emit_byte (mb, CEE_LDIND_I);
9621 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9622 mono_mb_emit_byte (mb, CEE_LDIND_I);
9623 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9624 mono_mb_emit_byte (mb, CEE_LDIND_I);
9625 mono_mb_emit_stloc (mb, aklass);
9629 load_value_class (MonoMethodBuilder *mb, int vklass)
9631 mono_mb_emit_ldarg (mb, 2);
9632 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9633 mono_mb_emit_byte (mb, CEE_LDIND_I);
9634 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9635 mono_mb_emit_byte (mb, CEE_LDIND_I);
9636 mono_mb_emit_stloc (mb, vklass);
9642 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9644 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9645 printf ("slow vstore of %s\n", name);
9652 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9653 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9654 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9655 * - Add a case for arrays of arrays.
9658 get_virtual_stelemref_wrapper (int kind)
9660 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9661 static MonoMethodSignature *signature;
9662 MonoMethodBuilder *mb;
9665 const char *param_names [16];
9666 guint32 b1, b2, b3, b4;
9667 int aklass, vklass, vtable, uiid;
9668 int array_slot_addr;
9671 if (cached_methods [kind])
9672 return cached_methods [kind];
9674 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9675 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9679 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9681 /* void this::stelemref (size_t idx, void* value) */
9682 sig->ret = &mono_defaults.void_class->byval_arg;
9683 sig->hasthis = TRUE;
9684 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9685 sig->params [1] = &mono_defaults.object_class->byval_arg;
9690 param_names [0] = "index";
9691 param_names [1] = "value";
9692 mono_mb_set_param_names (mb, param_names);
9694 /*For now simply call plain old stelemref*/
9696 case STELEMREF_OBJECT:
9697 /* ldelema (implicit bound check) */
9698 load_array_element_address (mb);
9700 mono_mb_emit_ldarg (mb, 2);
9701 mono_mb_emit_byte (mb, CEE_STIND_REF);
9702 mono_mb_emit_byte (mb, CEE_RET);
9705 case STELEMREF_COMPLEX:
9707 <ldelema (bound check)>
9710 if (!mono_object_isinst (value, aklass))
9714 *array_slot_addr = value;
9717 throw new ArrayTypeMismatchException ();
9720 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9721 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9725 /*Use this to debug/record stores that are going thru the slow path*/
9726 MonoMethodSignature *csig;
9727 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9728 csig->ret = &mono_defaults.void_class->byval_arg;
9729 csig->params [0] = &mono_defaults.object_class->byval_arg;
9730 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9731 csig->params [2] = &mono_defaults.object_class->byval_arg;
9732 mono_mb_emit_ldarg (mb, 0);
9733 mono_mb_emit_ldarg (mb, 1);
9734 mono_mb_emit_ldarg (mb, 2);
9735 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9739 /* ldelema (implicit bound check) */
9740 load_array_element_address (mb);
9741 mono_mb_emit_stloc (mb, array_slot_addr);
9743 /* if (!value) goto do_store */
9744 mono_mb_emit_ldarg (mb, 2);
9745 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9747 /* aklass = array->vtable->klass->element_class */
9748 load_array_class (mb, aklass);
9750 /*if (mono_object_isinst (value, aklass)) */
9751 mono_mb_emit_ldarg (mb, 2);
9752 mono_mb_emit_ldloc (mb, aklass);
9753 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9754 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9757 mono_mb_patch_branch (mb, b1);
9758 mono_mb_emit_ldloc (mb, array_slot_addr);
9759 mono_mb_emit_ldarg (mb, 2);
9760 mono_mb_emit_byte (mb, CEE_STIND_REF);
9761 mono_mb_emit_byte (mb, CEE_RET);
9764 mono_mb_patch_branch (mb, b2);
9766 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9769 case STELEMREF_SEALED_CLASS:
9771 <ldelema (bound check)>
9775 aklass = array->vtable->klass->element_class;
9776 vklass = value->vtable->klass;
9778 if (vklass != aklass)
9782 *array_slot_addr = value;
9785 throw new ArrayTypeMismatchException ();
9787 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9788 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9789 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9792 /* ldelema (implicit bound check) */
9793 load_array_element_address (mb);
9794 mono_mb_emit_stloc (mb, array_slot_addr);
9796 /* if (!value) goto do_store */
9797 mono_mb_emit_ldarg (mb, 2);
9798 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9800 /* aklass = array->vtable->klass->element_class */
9801 load_array_class (mb, aklass);
9803 /* vklass = value->vtable->klass */
9804 load_value_class (mb, vklass);
9806 /*if (vklass != aklass) goto do_exception; */
9807 mono_mb_emit_ldloc (mb, aklass);
9808 mono_mb_emit_ldloc (mb, vklass);
9809 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9812 mono_mb_patch_branch (mb, b1);
9813 mono_mb_emit_ldloc (mb, array_slot_addr);
9814 mono_mb_emit_ldarg (mb, 2);
9815 mono_mb_emit_byte (mb, CEE_STIND_REF);
9816 mono_mb_emit_byte (mb, CEE_RET);
9819 mono_mb_patch_branch (mb, b2);
9820 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9823 case STELEMREF_CLASS:
9826 <ldelema (bound check)>
9830 aklass = array->vtable->klass->element_class;
9831 vklass = value->vtable->klass;
9833 if (vklass->idepth < aklass->idepth)
9836 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9840 *array_slot_addr = value;
9844 throw new ArrayTypeMismatchException ();
9846 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9847 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9848 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9850 /* ldelema (implicit bound check) */
9851 load_array_element_address (mb);
9852 mono_mb_emit_stloc (mb, array_slot_addr);
9854 /* if (!value) goto do_store */
9855 mono_mb_emit_ldarg (mb, 2);
9856 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9858 /* aklass = array->vtable->klass->element_class */
9859 load_array_class (mb, aklass);
9861 /* vklass = value->vtable->klass */
9862 load_value_class (mb, vklass);
9864 /*if (mono_object_isinst (value, aklass)) */
9865 mono_mb_emit_ldarg (mb, 2);
9866 mono_mb_emit_ldloc (mb, aklass);
9867 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9868 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9870 /* if (vklass->idepth < aklass->idepth) goto failue */
9871 mono_mb_emit_ldloc (mb, vklass);
9872 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9873 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9875 mono_mb_emit_ldloc (mb, aklass);
9876 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9877 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9879 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9881 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9882 mono_mb_emit_ldloc (mb, vklass);
9883 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9884 mono_mb_emit_byte (mb, CEE_LDIND_I);
9886 mono_mb_emit_ldloc (mb, aklass);
9887 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9888 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9889 mono_mb_emit_icon (mb, 1);
9890 mono_mb_emit_byte (mb, CEE_SUB);
9891 mono_mb_emit_icon (mb, sizeof (void*));
9892 mono_mb_emit_byte (mb, CEE_MUL);
9893 mono_mb_emit_byte (mb, CEE_ADD);
9894 mono_mb_emit_byte (mb, CEE_LDIND_I);
9896 mono_mb_emit_ldloc (mb, aklass);
9897 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9900 mono_mb_patch_branch (mb, b1);
9901 mono_mb_emit_ldloc (mb, array_slot_addr);
9902 mono_mb_emit_ldarg (mb, 2);
9903 mono_mb_emit_byte (mb, CEE_STIND_REF);
9904 mono_mb_emit_byte (mb, CEE_RET);
9907 mono_mb_patch_branch (mb, b2);
9908 mono_mb_patch_branch (mb, b3);
9909 mono_mb_patch_branch (mb, b4);
9911 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9914 case STELEMREF_INTERFACE:
9921 klass = array->obj.vtable->klass->element_class;
9923 uiid = klass->interface_id;
9924 if (uiid > vt->max_interface_id)
9926 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9929 mono_array_setref (array, index, value);
9932 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9934 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9935 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9936 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9937 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9939 /* ldelema (implicit bound check) */
9940 load_array_element_address (mb);
9941 mono_mb_emit_stloc (mb, array_slot_addr);
9943 /* if (!value) goto do_store */
9944 mono_mb_emit_ldarg (mb, 2);
9945 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9947 /* klass = array->vtable->klass->element_class */
9948 load_array_class (mb, aklass);
9950 /* vt = value->vtable */
9951 mono_mb_emit_ldarg (mb, 2);
9952 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9953 mono_mb_emit_byte (mb, CEE_LDIND_I);
9954 mono_mb_emit_stloc (mb, vtable);
9956 /* uiid = klass->interface_id; */
9957 mono_mb_emit_ldloc (mb, aklass);
9958 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9959 mono_mb_emit_byte (mb, CEE_LDIND_U4);
9960 mono_mb_emit_stloc (mb, uiid);
9962 /*if (uiid > vt->max_interface_id)*/
9963 mono_mb_emit_ldloc (mb, uiid);
9964 mono_mb_emit_ldloc (mb, vtable);
9965 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9966 mono_mb_emit_byte (mb, CEE_LDIND_U4);
9967 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9969 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9971 /*vt->interface_bitmap*/
9972 mono_mb_emit_ldloc (mb, vtable);
9973 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9974 mono_mb_emit_byte (mb, CEE_LDIND_I);
9977 mono_mb_emit_ldloc (mb, uiid);
9978 mono_mb_emit_icon (mb, 3);
9979 mono_mb_emit_byte (mb, CEE_SHR_UN);
9981 /*vt->interface_bitmap [(uiid) >> 3]*/
9982 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9983 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9985 /*(1 << ((uiid)&7)))*/
9986 mono_mb_emit_icon (mb, 1);
9987 mono_mb_emit_ldloc (mb, uiid);
9988 mono_mb_emit_icon (mb, 7);
9989 mono_mb_emit_byte (mb, CEE_AND);
9990 mono_mb_emit_byte (mb, CEE_SHL);
9992 /*bitwise and the whole thing*/
9993 mono_mb_emit_byte (mb, CEE_AND);
9994 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9997 mono_mb_patch_branch (mb, b1);
9998 mono_mb_emit_ldloc (mb, array_slot_addr);
9999 mono_mb_emit_ldarg (mb, 2);
10000 mono_mb_emit_byte (mb, CEE_STIND_REF);
10001 mono_mb_emit_byte (mb, CEE_RET);
10003 /* do_exception: */
10004 mono_mb_patch_branch (mb, b2);
10005 mono_mb_patch_branch (mb, b3);
10006 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10010 mono_mb_emit_ldarg (mb, 0);
10011 mono_mb_emit_ldarg (mb, 1);
10012 mono_mb_emit_ldarg (mb, 2);
10013 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10014 mono_mb_emit_byte (mb, CEE_RET);
10017 #endif /* DISABLE_JIT */
10018 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10019 info->d.virtual_stelemref.kind = kind;
10020 res = mono_mb_create (mb, signature, 4, info);
10021 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10023 mono_marshal_lock ();
10024 if (!cached_methods [kind]) {
10025 cached_methods [kind] = res;
10026 mono_marshal_unlock ();
10028 mono_marshal_unlock ();
10029 mono_free_method (res);
10033 return cached_methods [kind];
10037 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10041 g_assert (array_class->rank == 1);
10042 kind = get_virtual_stelemref_kind (array_class->element_class);
10044 return get_virtual_stelemref_wrapper (kind);
10048 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10053 *nwrappers = STELEMREF_KIND_COUNT;
10054 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10055 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10056 res [i] = get_virtual_stelemref_wrapper (i);
10061 mono_marshal_get_stelemref (void)
10063 static MonoMethod* ret = NULL;
10064 MonoMethodSignature *sig;
10065 MonoMethodBuilder *mb;
10068 guint32 b1, b2, b3, b4;
10070 int aklass, vklass;
10071 int array_slot_addr;
10076 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10079 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10081 /* void stelemref (void* array, int idx, void* value) */
10082 sig->ret = &mono_defaults.void_class->byval_arg;
10083 sig->params [0] = &mono_defaults.object_class->byval_arg;
10084 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10085 sig->params [2] = &mono_defaults.object_class->byval_arg;
10087 #ifndef DISABLE_JIT
10088 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10089 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10090 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10094 <ldelema (bound check)>
10098 aklass = array->vtable->klass->element_class;
10099 vklass = value->vtable->klass;
10101 if (vklass->idepth < aklass->idepth)
10104 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10108 *array_slot_addr = value;
10112 if (mono_object_isinst (value, aklass))
10115 throw new ArrayTypeMismatchException ();
10118 /* ldelema (implicit bound check) */
10119 mono_mb_emit_ldarg (mb, 0);
10120 mono_mb_emit_ldarg (mb, 1);
10121 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10122 mono_mb_emit_stloc (mb, array_slot_addr);
10124 /* if (!value) goto do_store */
10125 mono_mb_emit_ldarg (mb, 2);
10126 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10128 /* aklass = array->vtable->klass->element_class */
10129 mono_mb_emit_ldarg (mb, 0);
10130 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10131 mono_mb_emit_byte (mb, CEE_LDIND_I);
10132 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10133 mono_mb_emit_byte (mb, CEE_LDIND_I);
10134 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10135 mono_mb_emit_byte (mb, CEE_LDIND_I);
10136 mono_mb_emit_stloc (mb, aklass);
10138 /* vklass = value->vtable->klass */
10139 mono_mb_emit_ldarg (mb, 2);
10140 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10141 mono_mb_emit_byte (mb, CEE_LDIND_I);
10142 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10143 mono_mb_emit_byte (mb, CEE_LDIND_I);
10144 mono_mb_emit_stloc (mb, vklass);
10146 /* if (vklass->idepth < aklass->idepth) goto failue */
10147 mono_mb_emit_ldloc (mb, vklass);
10148 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10149 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10151 mono_mb_emit_ldloc (mb, aklass);
10152 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10153 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10155 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10157 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10158 mono_mb_emit_ldloc (mb, vklass);
10159 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10160 mono_mb_emit_byte (mb, CEE_LDIND_I);
10162 mono_mb_emit_ldloc (mb, aklass);
10163 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10164 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10165 mono_mb_emit_icon (mb, 1);
10166 mono_mb_emit_byte (mb, CEE_SUB);
10167 mono_mb_emit_icon (mb, sizeof (void*));
10168 mono_mb_emit_byte (mb, CEE_MUL);
10169 mono_mb_emit_byte (mb, CEE_ADD);
10170 mono_mb_emit_byte (mb, CEE_LDIND_I);
10172 mono_mb_emit_ldloc (mb, aklass);
10174 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10176 copy_pos = mono_mb_get_label (mb);
10178 mono_mb_patch_branch (mb, b1);
10179 mono_mb_emit_ldloc (mb, array_slot_addr);
10180 mono_mb_emit_ldarg (mb, 2);
10181 mono_mb_emit_byte (mb, CEE_STIND_REF);
10183 mono_mb_emit_byte (mb, CEE_RET);
10186 mono_mb_patch_branch (mb, b2);
10187 mono_mb_patch_branch (mb, b3);
10189 mono_mb_emit_ldarg (mb, 2);
10190 mono_mb_emit_ldloc (mb, aklass);
10191 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10193 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10194 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10195 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10197 mono_mb_emit_byte (mb, CEE_RET);
10199 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10200 ret = mono_mb_create (mb, sig, 4, info);
10207 * mono_marshal_get_gsharedvt_in_wrapper:
10209 * This wrapper handles calls from normal code to gsharedvt code.
10212 mono_marshal_get_gsharedvt_in_wrapper (void)
10214 static MonoMethod* ret = NULL;
10215 MonoMethodSignature *sig;
10216 MonoMethodBuilder *mb;
10222 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10224 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10225 sig->ret = &mono_defaults.void_class->byval_arg;
10227 #ifndef DISABLE_JIT
10229 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10231 mono_mb_emit_byte (mb, CEE_RET);
10233 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10234 ret = mono_mb_create (mb, sig, 4, info);
10241 * mono_marshal_get_gsharedvt_out_wrapper:
10243 * This wrapper handles calls from gsharedvt code to normal code.
10246 mono_marshal_get_gsharedvt_out_wrapper (void)
10248 static MonoMethod* ret = NULL;
10249 MonoMethodSignature *sig;
10250 MonoMethodBuilder *mb;
10256 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10258 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10259 sig->ret = &mono_defaults.void_class->byval_arg;
10261 #ifndef DISABLE_JIT
10263 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10265 mono_mb_emit_byte (mb, CEE_RET);
10267 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10268 ret = mono_mb_create (mb, sig, 4, info);
10277 MonoMethod *method;
10280 /* LOCKING: vars accessed under the marshal lock */
10281 static ArrayElemAddr *elem_addr_cache = NULL;
10282 static int elem_addr_cache_size = 0;
10283 static int elem_addr_cache_next = 0;
10286 * mono_marshal_get_array_address:
10287 * @rank: rank of the array type
10288 * @elem_size: size in bytes of an element of an array.
10290 * Returns a MonoMethod that implements the code to get the address
10291 * of an element in a multi-dimenasional array of @rank dimensions.
10292 * The returned method takes an array as the first argument and then
10293 * @rank indexes for the @rank dimensions.
10294 * If ELEM_SIZE is 0, read the array size from the array object.
10297 mono_marshal_get_array_address (int rank, int elem_size)
10300 MonoMethodBuilder *mb;
10301 MonoMethodSignature *sig;
10304 int i, bounds, ind, realidx;
10305 int branch_pos, *branch_positions;
10309 mono_marshal_lock ();
10310 for (i = 0; i < elem_addr_cache_next; ++i) {
10311 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10312 ret = elem_addr_cache [i].method;
10316 mono_marshal_unlock ();
10320 branch_positions = g_new0 (int, rank);
10322 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10324 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10325 sig->ret = &mono_defaults.int_class->byval_arg;
10326 sig->params [0] = &mono_defaults.object_class->byval_arg;
10327 for (i = 0; i < rank; ++i) {
10328 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10331 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10332 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10335 #ifndef DISABLE_JIT
10336 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10337 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10338 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10340 /* bounds = array->bounds; */
10341 mono_mb_emit_ldarg (mb, 0);
10342 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10343 mono_mb_emit_byte (mb, CEE_LDIND_I);
10344 mono_mb_emit_stloc (mb, bounds);
10346 /* ind is the overall element index, realidx is the partial index in a single dimension */
10347 /* ind = idx0 - bounds [0].lower_bound */
10348 mono_mb_emit_ldarg (mb, 1);
10349 mono_mb_emit_ldloc (mb, bounds);
10350 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10351 mono_mb_emit_byte (mb, CEE_ADD);
10352 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10353 mono_mb_emit_byte (mb, CEE_SUB);
10354 mono_mb_emit_stloc (mb, ind);
10355 /* if (ind >= bounds [0].length) goto exeception; */
10356 mono_mb_emit_ldloc (mb, ind);
10357 mono_mb_emit_ldloc (mb, bounds);
10358 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10359 mono_mb_emit_byte (mb, CEE_ADD);
10360 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10361 /* note that we use unsigned comparison */
10362 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10364 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10365 * We could also decide to ignore the passed elem_size and get it
10366 * from the array object, to reduce the number of methods we generate:
10367 * the additional cost is 3 memory loads and a non-immediate mul.
10369 for (i = 1; i < rank; ++i) {
10370 /* realidx = idxi - bounds [i].lower_bound */
10371 mono_mb_emit_ldarg (mb, 1 + i);
10372 mono_mb_emit_ldloc (mb, bounds);
10373 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10374 mono_mb_emit_byte (mb, CEE_ADD);
10375 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10376 mono_mb_emit_byte (mb, CEE_SUB);
10377 mono_mb_emit_stloc (mb, realidx);
10378 /* if (realidx >= bounds [i].length) goto exeception; */
10379 mono_mb_emit_ldloc (mb, realidx);
10380 mono_mb_emit_ldloc (mb, bounds);
10381 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10382 mono_mb_emit_byte (mb, CEE_ADD);
10383 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10384 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10385 /* ind = ind * bounds [i].length + realidx */
10386 mono_mb_emit_ldloc (mb, ind);
10387 mono_mb_emit_ldloc (mb, bounds);
10388 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10389 mono_mb_emit_byte (mb, CEE_ADD);
10390 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10391 mono_mb_emit_byte (mb, CEE_MUL);
10392 mono_mb_emit_ldloc (mb, realidx);
10393 mono_mb_emit_byte (mb, CEE_ADD);
10394 mono_mb_emit_stloc (mb, ind);
10397 /* return array->vector + ind * element_size */
10398 mono_mb_emit_ldarg (mb, 0);
10399 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10400 mono_mb_emit_ldloc (mb, ind);
10402 mono_mb_emit_icon (mb, elem_size);
10404 /* Load arr->vtable->klass->sizes.element_class */
10405 mono_mb_emit_ldarg (mb, 0);
10406 mono_mb_emit_byte (mb, CEE_CONV_I);
10407 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10408 mono_mb_emit_byte (mb, CEE_ADD);
10409 mono_mb_emit_byte (mb, CEE_LDIND_I);
10410 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10411 mono_mb_emit_byte (mb, CEE_ADD);
10412 mono_mb_emit_byte (mb, CEE_LDIND_I);
10413 /* sizes is an union, so this reads sizes.element_size */
10414 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10415 mono_mb_emit_byte (mb, CEE_ADD);
10416 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10418 mono_mb_emit_byte (mb, CEE_MUL);
10419 mono_mb_emit_byte (mb, CEE_ADD);
10420 mono_mb_emit_byte (mb, CEE_RET);
10422 /* patch the branches to get here and throw */
10423 for (i = 1; i < rank; ++i) {
10424 mono_mb_patch_branch (mb, branch_positions [i]);
10426 mono_mb_patch_branch (mb, branch_pos);
10427 /* throw exception */
10428 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10430 g_free (branch_positions);
10431 #endif /* DISABLE_JIT */
10433 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10434 info->d.element_addr.rank = rank;
10435 info->d.element_addr.elem_size = elem_size;
10436 ret = mono_mb_create (mb, sig, 4, info);
10439 /* cache the result */
10441 mono_marshal_lock ();
10442 for (i = 0; i < elem_addr_cache_next; ++i) {
10443 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10444 /* FIXME: free ret */
10445 ret = elem_addr_cache [i].method;
10451 if (elem_addr_cache_next >= elem_addr_cache_size) {
10452 int new_size = elem_addr_cache_size + 4;
10453 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10454 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10455 g_free (elem_addr_cache);
10456 elem_addr_cache = new_array;
10457 elem_addr_cache_size = new_size;
10459 elem_addr_cache [elem_addr_cache_next].rank = rank;
10460 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10461 elem_addr_cache [elem_addr_cache_next].method = ret;
10462 elem_addr_cache_next ++;
10464 mono_marshal_unlock ();
10469 * mono_marshal_get_array_accessor_wrapper:
10471 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10474 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10476 MonoMethodSignature *sig;
10477 MonoMethodBuilder *mb;
10481 MonoGenericContext *ctx = NULL;
10482 MonoMethod *orig_method = NULL;
10483 MonoGenericContainer *container = NULL;
10487 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10488 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10489 * FIXME: Use generic methods.
10496 g_assert_not_reached ();
10498 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10499 if ((res = mono_marshal_find_in_cache (cache, method)))
10503 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10506 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10508 #ifndef DISABLE_JIT
10509 /* Call the method */
10511 mono_mb_emit_ldarg (mb, 0);
10512 for (i = 0; i < sig->param_count; i++)
10513 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10517 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10518 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10520 mono_mb_emit_managed_call (mb, method, NULL);
10522 mono_mb_emit_byte (mb, CEE_RET);
10525 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10526 info->d.array_accessor.method = method;
10530 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10531 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10533 res = mono_mb_create_and_cache_full (cache, method,
10534 mb, sig, sig->param_count + 16,
10543 static inline void*
10544 mono_marshal_alloc_co_task_mem (size_t size)
10546 if ((gulong)size == 0)
10547 /* This returns a valid pointer for size 0 on MS.NET */
10550 return g_try_malloc ((gulong)size);
10555 mono_marshal_alloc (gulong size, MonoError *error)
10559 mono_error_init (error);
10561 res = mono_marshal_alloc_co_task_mem (size);
10563 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10568 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10570 ves_icall_marshal_alloc (gulong size)
10573 void *ret = mono_marshal_alloc (size, &error);
10574 if (!mono_error_ok (&error)) {
10575 mono_error_set_pending_exception (&error);
10584 mono_marshal_free_co_task_mem (void *ptr)
10592 mono_marshal_free (gpointer ptr)
10594 mono_marshal_free_co_task_mem (ptr);
10598 mono_marshal_free_array (gpointer *ptr, int size)
10605 for (i = 0; i < size; i++)
10611 mono_marshal_string_to_utf16 (MonoString *s)
10613 return s ? mono_string_chars (s) : NULL;
10616 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10618 mono_marshal_string_to_utf16_copy (MonoString *s)
10624 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10625 if (!mono_error_ok (&error)) {
10626 mono_error_set_pending_exception (&error);
10629 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10630 res [mono_string_length (s)] = 0;
10636 * mono_marshal_set_last_error:
10638 * This function is invoked to set the last error value from a P/Invoke call
10639 * which has SetLastError set.
10642 mono_marshal_set_last_error (void)
10645 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10647 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10652 mono_marshal_set_last_error_windows (int error)
10655 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10660 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10661 gpointer dest, gint32 length)
10666 MONO_CHECK_ARG_NULL (src,);
10667 MONO_CHECK_ARG_NULL (dest,);
10669 if (src->obj.vtable->klass->rank != 1) {
10670 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10673 if (start_index < 0) {
10674 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10678 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10681 if (start_index + length > mono_array_length (src)) {
10682 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10686 element_size = mono_array_element_size (src->obj.vtable->klass);
10688 /* no references should be involved */
10689 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10691 memcpy (dest, source_addr, length * element_size);
10695 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10696 MonoArray *dest, gint32 length)
10701 MONO_CHECK_ARG_NULL (src,);
10702 MONO_CHECK_ARG_NULL (dest,);
10704 if (dest->obj.vtable->klass->rank != 1) {
10705 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10708 if (start_index < 0) {
10709 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10713 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10716 if (start_index + length > mono_array_length (dest)) {
10717 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10720 element_size = mono_array_element_size (dest->obj.vtable->klass);
10722 /* no references should be involved */
10723 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10725 memcpy (dest_addr, src, length * element_size);
10729 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10734 return mono_string_new (mono_domain_get (), ptr);
10738 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10741 MonoString *result = NULL;
10742 mono_error_init (&error);
10744 mono_error_set_argument_null (&error, "ptr", "");
10746 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10747 mono_error_set_pending_exception (&error);
10752 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10755 MonoString *res = NULL;
10756 MonoDomain *domain = mono_domain_get ();
10766 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10767 if (!mono_error_ok (&error)) {
10768 mono_error_set_pending_exception (&error);
10775 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10778 MonoString *res = NULL;
10779 MonoDomain *domain = mono_domain_get ();
10781 mono_error_init (&error);
10785 mono_error_set_argument_null (&error, "ptr", "");
10787 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10790 if (!mono_error_ok (&error))
10791 mono_error_set_pending_exception (&error);
10796 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10798 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10802 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10808 MONO_CHECK_ARG_NULL (rtype, 0);
10810 type = rtype->type;
10811 klass = mono_class_from_mono_type (type);
10812 if (!mono_class_init (klass)) {
10813 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10817 layout = (mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK);
10819 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10820 return sizeof (gpointer);
10821 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10823 MonoException *exc;
10825 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10826 exc = mono_get_exception_argument ("t", msg);
10828 mono_set_pending_exception (exc);
10832 return mono_class_native_size (klass, NULL);
10836 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10839 MonoMethod *method;
10842 MONO_CHECK_ARG_NULL (obj,);
10843 MONO_CHECK_ARG_NULL (dst,);
10845 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10849 pa [2] = &delete_old;
10851 mono_runtime_invoke_checked (method, NULL, pa, &error);
10852 if (!mono_error_ok (&error))
10853 mono_error_set_pending_exception (&error);
10857 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10859 MonoMethod *method;
10862 mono_error_init (error);
10864 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10869 mono_runtime_invoke_checked (method, NULL, pa, error);
10873 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10878 MONO_CHECK_ARG_NULL (src,);
10879 MONO_CHECK_ARG_NULL (dst,);
10881 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10883 if (t->type == MONO_TYPE_VALUETYPE) {
10884 MonoException *exc;
10887 tmp = g_strdup_printf ("Destination is a boxed value type.");
10888 exc = mono_get_exception_argument ("dst", tmp);
10891 mono_set_pending_exception (exc);
10895 ptr_to_structure (src, dst, &error);
10896 if (!mono_error_ok (&error))
10897 mono_error_set_pending_exception (&error);
10901 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10905 MonoDomain *domain = mono_domain_get ();
10910 MONO_CHECK_ARG_NULL (type, NULL);
10912 klass = mono_class_from_mono_type (type->type);
10913 if (!mono_class_init (klass)) {
10914 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10918 res = mono_object_new_checked (domain, klass, &error);
10919 if (!mono_error_ok (&error)) {
10920 mono_error_set_pending_exception (&error);
10924 ptr_to_structure (src, res, &error);
10925 if (!mono_error_ok (&error)) {
10926 mono_error_set_pending_exception (&error);
10934 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10937 MonoMarshalType *info;
10940 int match_index = -1;
10942 MONO_CHECK_ARG_NULL (type, 0);
10943 MONO_CHECK_ARG_NULL (field_name, 0);
10945 fname = mono_string_to_utf8_checked (field_name, &error);
10946 if (mono_error_set_pending_exception (&error))
10948 klass = mono_class_from_mono_type (type->type);
10949 if (!mono_class_init (klass)) {
10950 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10954 while (klass && match_index == -1) {
10955 MonoClassField* field;
10957 gpointer iter = NULL;
10958 while ((field = mono_class_get_fields (klass, &iter))) {
10959 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10961 if (!strcmp (fname, mono_field_get_name (field))) {
10968 if (match_index == -1)
10969 klass = klass->parent;
10974 if(match_index == -1) {
10975 MonoException* exc;
10978 /* Get back original class instance */
10979 klass = mono_class_from_mono_type (type->type);
10981 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10982 exc = mono_get_exception_argument ("fieldName", tmp);
10985 mono_set_pending_exception ((MonoException*)exc);
10989 info = mono_marshal_load_type_info (klass);
10990 return info->fields [match_index].offset;
10995 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10998 char *ret = mono_string_to_utf8_checked (string, &error);
10999 mono_error_set_pending_exception (&error);
11004 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11006 if (string == NULL)
11009 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
11011 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11012 res [mono_string_length (string)] = 0;
11016 #endif /* !HOST_WIN32 */
11019 mono_struct_delete_old (MonoClass *klass, char *ptr)
11021 MonoMarshalType *info;
11024 info = mono_marshal_load_type_info (klass);
11026 for (i = 0; i < info->num_fields; i++) {
11027 MonoMarshalConv conv;
11028 MonoType *ftype = info->fields [i].field->type;
11031 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11034 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11035 klass->unicode, &conv);
11037 cpos = ptr + info->fields [i].offset;
11040 case MONO_MARSHAL_CONV_NONE:
11041 if (MONO_TYPE_ISSTRUCT (ftype)) {
11042 mono_struct_delete_old (ftype->data.klass, cpos);
11046 case MONO_MARSHAL_CONV_STR_LPWSTR:
11047 /* We assume this field points inside a MonoString */
11049 case MONO_MARSHAL_CONV_STR_LPTSTR:
11050 #ifdef TARGET_WIN32
11051 /* We assume this field points inside a MonoString
11055 case MONO_MARSHAL_CONV_STR_LPSTR:
11056 case MONO_MARSHAL_CONV_STR_BSTR:
11057 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11058 case MONO_MARSHAL_CONV_STR_TBSTR:
11059 case MONO_MARSHAL_CONV_STR_UTF8STR:
11060 mono_marshal_free (*(gpointer *)cpos);
11070 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11074 MONO_CHECK_ARG_NULL (src,);
11075 MONO_CHECK_ARG_NULL (type,);
11077 klass = mono_class_from_mono_type (type->type);
11078 if (!mono_class_init (klass)) {
11079 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11083 mono_struct_delete_old (klass, (char *)src);
11087 static inline void *
11088 mono_marshal_alloc_hglobal (size_t size)
11090 return g_try_malloc (size);
11095 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11098 size_t s = (size_t)size;
11101 /* This returns a valid pointer for size 0 on MS.NET */
11104 res = mono_marshal_alloc_hglobal (s);
11107 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11115 static inline gpointer
11116 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11118 return g_try_realloc (ptr, size);
11123 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11126 size_t s = (size_t)size;
11129 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11133 res = mono_marshal_realloc_hglobal (ptr, s);
11136 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11145 mono_marshal_free_hglobal (gpointer ptr)
11153 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11155 mono_marshal_free_hglobal (ptr);
11159 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11161 void *res = mono_marshal_alloc_co_task_mem (size);
11164 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11171 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11173 void *res = mono_marshal_alloc_co_task_mem (size);
11176 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11183 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11185 mono_marshal_free_co_task_mem (ptr);
11190 static inline gpointer
11191 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11193 return g_try_realloc (ptr, (gulong)size);
11198 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11200 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11203 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11210 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11212 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11216 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11218 MonoClass *klass = mono_type_get_class (type->type);
11219 if (!mono_class_init (klass)) {
11220 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11224 return mono_ftnptr_to_delegate (klass, ftn);
11228 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11230 return mono_delegate_to_ftnptr (delegate);
11234 * mono_marshal_is_loading_type_info:
11236 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11240 mono_marshal_is_loading_type_info (MonoClass *klass)
11242 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11244 return g_slist_find (loads_list, klass) != NULL;
11248 * mono_marshal_load_type_info:
11250 * Initialize klass::marshal_info using information from metadata. This function can
11251 * recursively call itself, and the caller is responsible to avoid that by calling
11252 * mono_marshal_is_loading_type_info () beforehand.
11254 * LOCKING: Acquires the loader lock.
11257 mono_marshal_load_type_info (MonoClass* klass)
11260 guint32 native_size = 0, min_align = 1, packing;
11261 MonoMarshalType *info;
11262 MonoClassField* field;
11265 GSList *loads_list;
11267 g_assert (klass != NULL);
11269 info = mono_class_get_marshal_info (klass);
11273 if (!klass->inited)
11274 mono_class_init (klass);
11276 info = mono_class_get_marshal_info (klass);
11281 * This function can recursively call itself, so we keep the list of classes which are
11282 * under initialization in a TLS list.
11284 g_assert (!mono_marshal_is_loading_type_info (klass));
11285 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11286 loads_list = g_slist_prepend (loads_list, klass);
11287 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11290 while ((field = mono_class_get_fields (klass, &iter))) {
11291 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11293 if (mono_field_is_deleted (field))
11298 layout = mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK;
11300 /* The mempool is protected by the loader lock */
11301 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11302 info->num_fields = count;
11304 /* Try to find a size for this type in metadata */
11305 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11307 if (klass->parent) {
11308 int parent_size = mono_class_native_size (klass->parent, NULL);
11310 /* Add parent size to real size */
11311 native_size += parent_size;
11312 info->native_size = parent_size;
11315 packing = klass->packing_size ? klass->packing_size : 8;
11318 while ((field = mono_class_get_fields (klass, &iter))) {
11322 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11325 if (mono_field_is_deleted (field))
11327 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11328 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11329 NULL, NULL, &info->fields [j].mspec);
11331 info->fields [j].field = field;
11333 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11334 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11335 /* This field is a hack inserted by MCS to empty structures */
11340 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11341 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11342 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11343 &align, TRUE, klass->unicode);
11344 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11345 min_align = MAX (align, min_align);
11346 info->fields [j].offset = info->native_size;
11347 info->fields [j].offset += align - 1;
11348 info->fields [j].offset &= ~(align - 1);
11349 info->native_size = info->fields [j].offset + size;
11351 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11352 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11353 &align, TRUE, klass->unicode);
11354 min_align = MAX (align, min_align);
11355 info->fields [j].offset = field->offset - sizeof (MonoObject);
11356 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11362 if (klass->byval_arg.type == MONO_TYPE_PTR)
11363 info->native_size = sizeof (gpointer);
11365 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11366 info->native_size = MAX (native_size, info->native_size);
11368 * If the provided Size is equal or larger than the calculated size, and there
11369 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11371 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11372 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11375 min_align = MIN (min_align, packing);
11379 if (info->native_size & (min_align - 1)) {
11380 info->native_size += min_align - 1;
11381 info->native_size &= ~(min_align - 1);
11384 info->min_align = min_align;
11386 /* Update the class's blittable info, if the layouts don't match */
11387 if (info->native_size != mono_class_value_size (klass, NULL))
11388 klass->blittable = FALSE;
11390 /* If this is an array type, ensure that we have element info */
11391 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11392 mono_marshal_load_type_info (klass->element_class);
11395 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11396 loads_list = g_slist_remove (loads_list, klass);
11397 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11399 mono_marshal_lock ();
11400 MonoMarshalType *info2 = mono_class_get_marshal_info (klass);
11402 /*We do double-checking locking on marshal_info */
11403 mono_memory_barrier ();
11404 mono_class_set_marshal_info (klass, info);
11405 ++class_marshal_info_count;
11408 mono_marshal_unlock ();
11414 * mono_class_native_size:
11417 * Returns: the native size of an object instance (when marshaled
11418 * to unmanaged code)
11421 mono_class_native_size (MonoClass *klass, guint32 *align)
11423 MonoMarshalType *info = mono_class_get_marshal_info (klass);
11425 if (mono_marshal_is_loading_type_info (klass)) {
11430 mono_marshal_load_type_info (klass);
11432 info = mono_class_get_marshal_info (klass);
11436 *align = info->min_align;
11438 return info->native_size;
11442 * mono_type_native_stack_size:
11443 * @t: the type to return the size it uses on the stack
11445 * Returns: the number of bytes required to hold an instance of this
11446 * type on the native stack
11449 mono_type_native_stack_size (MonoType *t, guint32 *align)
11453 g_assert (t != NULL);
11459 *align = sizeof (gpointer);
11460 return sizeof (gpointer);
11464 case MONO_TYPE_BOOLEAN:
11465 case MONO_TYPE_CHAR:
11476 case MONO_TYPE_STRING:
11477 case MONO_TYPE_OBJECT:
11478 case MONO_TYPE_CLASS:
11479 case MONO_TYPE_SZARRAY:
11480 case MONO_TYPE_PTR:
11481 case MONO_TYPE_FNPTR:
11482 case MONO_TYPE_ARRAY:
11483 *align = sizeof (gpointer);
11484 return sizeof (gpointer);
11489 *align = MONO_ABI_ALIGNOF (double);
11493 *align = MONO_ABI_ALIGNOF (gint64);
11495 case MONO_TYPE_GENERICINST:
11496 if (!mono_type_generic_inst_is_valuetype (t)) {
11497 *align = sizeof (gpointer);
11498 return sizeof (gpointer);
11501 case MONO_TYPE_TYPEDBYREF:
11502 case MONO_TYPE_VALUETYPE: {
11504 MonoClass *klass = mono_class_from_mono_type (t);
11506 if (klass->enumtype)
11507 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11509 size = mono_class_native_size (klass, align);
11510 *align = *align + 3;
11520 g_error ("type 0x%02x unknown", t->type);
11526 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11527 gboolean as_field, gboolean unicode)
11529 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11532 switch (native_type) {
11533 case MONO_NATIVE_BOOLEAN:
11536 case MONO_NATIVE_I1:
11537 case MONO_NATIVE_U1:
11540 case MONO_NATIVE_I2:
11541 case MONO_NATIVE_U2:
11542 case MONO_NATIVE_VARIANTBOOL:
11545 case MONO_NATIVE_I4:
11546 case MONO_NATIVE_U4:
11547 case MONO_NATIVE_ERROR:
11550 case MONO_NATIVE_I8:
11551 case MONO_NATIVE_U8:
11552 *align = MONO_ABI_ALIGNOF (gint64);
11554 case MONO_NATIVE_R4:
11557 case MONO_NATIVE_R8:
11558 *align = MONO_ABI_ALIGNOF (double);
11560 case MONO_NATIVE_INT:
11561 case MONO_NATIVE_UINT:
11562 case MONO_NATIVE_LPSTR:
11563 case MONO_NATIVE_LPWSTR:
11564 case MONO_NATIVE_LPTSTR:
11565 case MONO_NATIVE_BSTR:
11566 case MONO_NATIVE_ANSIBSTR:
11567 case MONO_NATIVE_TBSTR:
11568 case MONO_NATIVE_UTF8STR:
11569 case MONO_NATIVE_LPARRAY:
11570 case MONO_NATIVE_SAFEARRAY:
11571 case MONO_NATIVE_IUNKNOWN:
11572 case MONO_NATIVE_IDISPATCH:
11573 case MONO_NATIVE_INTERFACE:
11574 case MONO_NATIVE_ASANY:
11575 case MONO_NATIVE_FUNC:
11576 case MONO_NATIVE_LPSTRUCT:
11577 *align = MONO_ABI_ALIGNOF (gpointer);
11578 return sizeof (gpointer);
11579 case MONO_NATIVE_STRUCT:
11580 klass = mono_class_from_mono_type (type);
11581 if (klass == mono_defaults.object_class &&
11582 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11586 return mono_class_native_size (klass, align);
11587 case MONO_NATIVE_BYVALTSTR: {
11588 int esize = unicode ? 2: 1;
11591 return mspec->data.array_data.num_elem * esize;
11593 case MONO_NATIVE_BYVALARRAY: {
11594 // FIXME: Have to consider ArraySubType
11596 klass = mono_class_from_mono_type (type);
11597 if (klass->element_class == mono_defaults.char_class) {
11598 esize = unicode ? 2 : 1;
11601 esize = mono_class_native_size (klass->element_class, align);
11604 return mspec->data.array_data.num_elem * esize;
11606 case MONO_NATIVE_CUSTOM:
11607 *align = sizeof (gpointer);
11608 return sizeof (gpointer);
11610 case MONO_NATIVE_CURRENCY:
11611 case MONO_NATIVE_VBBYREFSTR:
11613 g_error ("native type %02x not implemented", native_type);
11616 g_assert_not_reached ();
11620 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11622 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11631 t = &o->vtable->klass->byval_arg;
11635 case MONO_TYPE_PTR:
11638 case MONO_TYPE_BOOLEAN:
11641 case MONO_TYPE_CHAR:
11646 return mono_object_unbox (o);
11648 case MONO_TYPE_STRING:
11649 switch (string_encoding) {
11650 case MONO_NATIVE_LPWSTR:
11651 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11652 case MONO_NATIVE_LPSTR:
11653 case MONO_NATIVE_UTF8STR:
11654 // Same code path, because in Mono, we treated strings as Utf8
11655 return mono_string_to_utf8str ((MonoString*)o);
11657 g_warning ("marshaling conversion %d not implemented", string_encoding);
11658 g_assert_not_reached ();
11661 case MONO_TYPE_CLASS:
11662 case MONO_TYPE_VALUETYPE: {
11663 MonoMethod *method;
11666 MonoBoolean delete_old = FALSE;
11668 klass = t->data.klass;
11670 if (mono_class_is_auto_layout (klass))
11673 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11674 return mono_object_unbox (o);
11676 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11677 if (!mono_error_ok (&error)) {
11678 mono_error_set_pending_exception (&error);
11682 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11683 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11687 pa [2] = &delete_old;
11689 mono_runtime_invoke_checked (method, NULL, pa, &error);
11690 if (!mono_error_ok (&error)) {
11691 mono_error_set_pending_exception (&error);
11701 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11705 /* This is a JIT icall, it sets the pending exception */
11707 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11716 t = &o->vtable->klass->byval_arg;
11718 case MONO_TYPE_STRING:
11719 switch (string_encoding) {
11720 case MONO_NATIVE_LPWSTR:
11721 case MONO_NATIVE_LPSTR:
11722 case MONO_NATIVE_UTF8STR:
11723 mono_marshal_free (ptr);
11726 g_warning ("marshaling conversion %d not implemented", string_encoding);
11727 g_assert_not_reached ();
11730 case MONO_TYPE_CLASS:
11731 case MONO_TYPE_VALUETYPE: {
11732 klass = t->data.klass;
11734 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11737 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11738 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11744 mono_runtime_invoke_checked (method, NULL, pa, &error);
11745 if (!mono_error_ok (&error)) {
11746 mono_error_set_pending_exception (&error);
11751 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11752 mono_struct_delete_old (klass, (char *)ptr);
11755 mono_marshal_free (ptr);
11764 * mono_marshal_get_generic_array_helper:
11766 * Return a wrapper which is used to implement the implicit interfaces on arrays.
11767 * The wrapper routes calls to METHOD, which is one of the InternalArray_ methods in Array.
11770 mono_marshal_get_generic_array_helper (MonoClass *klass, gchar *name, MonoMethod *method)
11772 MonoMethodSignature *sig, *csig;
11773 MonoMethodBuilder *mb;
11778 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11779 mb->method->slot = -1;
11781 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11782 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11784 sig = mono_method_signature (method);
11785 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11786 csig->generic_param_count = 0;
11788 #ifndef DISABLE_JIT
11789 mono_mb_emit_ldarg (mb, 0);
11790 for (i = 0; i < csig->param_count; i++)
11791 mono_mb_emit_ldarg (mb, i + 1);
11792 mono_mb_emit_managed_call (mb, method, NULL);
11793 mono_mb_emit_byte (mb, CEE_RET);
11795 /* We can corlib internal methods */
11796 mb->skip_visibility = TRUE;
11798 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11799 info->d.generic_array_helper.method = method;
11800 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11808 * The mono_win32_compat_* functions are implementations of inline
11809 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11810 * although not exported by kernel32.
11812 * We map the appropiate kernel32 entries to these functions using
11813 * dllmaps declared in the global etc/mono/config.
11817 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11819 if (!dest || !source)
11822 memcpy (dest, source, length);
11826 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11828 memset (dest, fill, length);
11832 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11834 if (!dest || !source)
11837 memmove (dest, source, length);
11841 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11843 memset (dest, 0, length);
11847 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11852 for (i = 0; i < len; ++i)
11856 g_assert (i < len);
11859 while (byte && !(byte & 1))
11861 g_assert (byte == 1);
11864 *bitmask = buf [i];
11868 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11870 MonoMethodBuilder *mb;
11871 MonoMethodSignature *sig, *csig;
11872 MonoExceptionClause *clause;
11877 int i, param_count, sig_size, pos_leave;
11881 // FIXME: we need to store the exception into a MonoHandle
11882 g_assert (!mono_threads_is_coop_enabled ());
11884 klass = method->klass;
11885 image = method->klass->image;
11887 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11889 if ((res = mono_marshal_find_in_cache (cache, method)))
11892 sig = mono_method_signature (method);
11893 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11895 /* add "this" and exception param */
11896 param_count = sig->param_count + sig->hasthis + 1;
11898 /* dup & extend signature */
11899 csig = mono_metadata_signature_alloc (image, param_count);
11900 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11901 memcpy (csig, sig, sig_size);
11902 csig->param_count = param_count;
11905 csig->call_convention = MONO_CALL_DEFAULT;
11907 if (sig->hasthis) {
11909 csig->params [0] = &klass->byval_arg;
11910 /* move params up by one */
11911 for (i = 0; i < sig->param_count; i++)
11912 csig->params [i + 1] = sig->params [i];
11915 /* setup exception param as byref+[out] */
11916 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11917 &mono_defaults.exception_class->byval_arg);
11918 csig->params [param_count - 1]->byref = 1;
11919 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11921 /* convert struct return to object */
11922 if (MONO_TYPE_ISSTRUCT (sig->ret))
11923 csig->ret = &mono_defaults.object_class->byval_arg;
11925 #ifndef DISABLE_JIT
11926 /* local 0 (temp for exception object) */
11927 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11929 /* local 1 (temp for result) */
11930 if (!MONO_TYPE_IS_VOID (sig->ret))
11931 mono_mb_add_local (mb, sig->ret);
11933 /* clear exception arg */
11934 mono_mb_emit_ldarg (mb, param_count - 1);
11935 mono_mb_emit_byte (mb, CEE_LDNULL);
11936 mono_mb_emit_byte (mb, CEE_STIND_REF);
11939 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11940 clause->try_offset = mono_mb_get_label (mb);
11942 /* push method's args */
11943 for (i = 0; i < param_count - 1; i++) {
11947 mono_mb_emit_ldarg (mb, i);
11949 /* get the byval type of the param */
11950 klass = mono_class_from_mono_type (csig->params [i]);
11951 type = &klass->byval_arg;
11953 /* unbox struct args */
11954 if (MONO_TYPE_ISSTRUCT (type)) {
11955 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11957 /* byref args & and the "this" arg must remain a ptr.
11958 Otherwise make a copy of the value type */
11959 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11960 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11962 csig->params [i] = &mono_defaults.object_class->byval_arg;
11967 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11968 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11970 mono_mb_emit_op (mb, CEE_CALL, method);
11972 /* save result at local 1 */
11973 if (!MONO_TYPE_IS_VOID (sig->ret))
11974 mono_mb_emit_stloc (mb, 1);
11976 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11979 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11980 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11981 clause->data.catch_class = mono_defaults.object_class;
11983 clause->handler_offset = mono_mb_get_label (mb);
11985 /* store exception at local 0 */
11986 mono_mb_emit_stloc (mb, 0);
11987 mono_mb_emit_ldarg (mb, param_count - 1);
11988 mono_mb_emit_ldloc (mb, 0);
11989 mono_mb_emit_byte (mb, CEE_STIND_REF);
11990 mono_mb_emit_branch (mb, CEE_LEAVE);
11992 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11994 mono_mb_set_clauses (mb, 1, clause);
11996 mono_mb_patch_branch (mb, pos_leave);
11999 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12000 mono_mb_emit_ldloc (mb, 1);
12002 /* box the return value */
12003 if (MONO_TYPE_ISSTRUCT (sig->ret))
12004 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12007 mono_mb_emit_byte (mb, CEE_RET);
12010 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12017 * mono_marshal_free_dynamic_wrappers:
12019 * Free wrappers of the dynamic method METHOD.
12022 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12024 MonoImage *image = method->klass->image;
12026 g_assert (method_is_dynamic (method));
12028 /* This could be called during shutdown */
12029 if (marshal_mutex_initialized)
12030 mono_marshal_lock ();
12032 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12033 * they could be shared with other methods ?
12035 if (image->wrapper_caches.runtime_invoke_direct_cache)
12036 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
12037 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12038 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12039 // FIXME: Need to clear the caches in other images as well
12040 if (image->delegate_bound_static_invoke_cache)
12041 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12043 if (marshal_mutex_initialized)
12044 mono_marshal_unlock ();
12048 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12050 g_assert (ftnptr_eh_callback);
12051 ftnptr_eh_callback (gchandle);
12055 ftnptr_eh_callback_default (guint32 gchandle)
12057 MonoException *exc;
12058 gpointer stackdata;
12060 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12062 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12064 mono_gchandle_free (gchandle);
12066 mono_raise_exception (exc);
12070 * mono_install_ftnptr_eh_callback:
12072 * Install a callback that should be called when there is a managed exception
12073 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12074 * managed exception to a native exception, to properly unwind the native
12075 * stack; this native exception will then be converted back to a managed
12076 * exception in their managed-to-native wrapper.
12079 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12081 ftnptr_eh_callback = callback;
12084 static MonoThreadInfo*
12085 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12087 MonoThreadInfo *info = mono_thread_info_current ();
12089 mono_stack_mark_init (info, stackmark);
12090 mono_error_init (error);
12095 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12097 mono_stack_mark_pop (info, stackmark);
12098 mono_error_set_pending_exception (error);