3 * Routines for marshaling complex types in P/Invoke methods.
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
10 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
12 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
23 #include "metadata/marshal.h"
24 #include "metadata/marshal-internals.h"
25 #include "metadata/method-builder.h"
26 #include "metadata/tabledefs.h"
27 #include "metadata/exception.h"
28 #include "metadata/appdomain.h"
29 #include "mono/metadata/abi-details.h"
30 #include "mono/metadata/debug-helpers.h"
31 #include "mono/metadata/threads.h"
32 #include "mono/metadata/monitor.h"
33 #include "mono/metadata/class-internals.h"
34 #include "mono/metadata/metadata-internals.h"
35 #include "mono/metadata/domain-internals.h"
36 #include "mono/metadata/gc-internals.h"
37 #include "mono/metadata/threads-types.h"
38 #include "mono/metadata/string-icalls.h"
39 #include "mono/metadata/attrdefs.h"
40 #include "mono/metadata/cominterop.h"
41 #include "mono/metadata/remoting.h"
42 #include "mono/metadata/reflection-internals.h"
43 #include "mono/metadata/threadpool.h"
44 #include "mono/metadata/handle.h"
45 #include "mono/utils/mono-counters.h"
46 #include "mono/utils/mono-tls.h"
47 #include "mono/utils/mono-memory-model.h"
48 #include "mono/utils/atomic.h"
49 #include <mono/utils/mono-threads.h>
50 #include <mono/utils/mono-threads-coop.h>
51 #include <mono/utils/mono-error-internals.h>
56 /* #define DEBUG_RUNTIME_CODE */
58 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
62 #include "mono/cil/opcode.def"
68 * This mutex protects the various marshalling related caches in MonoImage
69 * and a few other data structures static to this file.
71 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
72 * runtime locking latice. Which means it can take simple locks suck as the image lock.
74 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
75 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
76 static mono_mutex_t marshal_mutex;
77 static gboolean marshal_mutex_initialized;
79 static MonoNativeTlsKey last_error_tls_id;
81 static MonoNativeTlsKey load_type_info_tls_id;
83 static gboolean use_aot_wrappers;
85 static int class_marshal_info_count;
87 static void ftnptr_eh_callback_default (guint32 gchandle);
89 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
92 delegate_hash_table_add (MonoDelegate *d);
95 delegate_hash_table_remove (MonoDelegate *d);
98 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
101 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, int offset_of_first_child_field, MonoMarshalNative string_encoding);
104 mono_struct_delete_old (MonoClass *klass, char *ptr);
107 mono_marshal_string_to_utf16 (MonoString *s);
110 mono_marshal_string_to_utf16_copy (MonoString *s);
114 mono_string_to_utf8str (MonoString *string_obj);
117 static MonoStringBuilder *
118 mono_string_utf8_to_builder2 (char *text);
120 static MonoStringBuilder *
121 mono_string_utf16_to_builder2 (gunichar2 *text);
124 mono_string_new_len_wrapper (const char *text, guint length);
127 mono_string_from_byvalstr (const char *data, int len);
130 mono_string_from_byvalwstr (gunichar2 *data, int len);
133 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
136 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
139 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
142 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
144 static MonoAsyncResult *
145 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
148 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
151 mono_marshal_set_last_error_windows (int error);
154 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
156 static void init_safe_handle (void);
159 ves_icall_marshal_alloc (gulong size);
162 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
165 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
168 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
171 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
174 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
177 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
180 mono_delegate_to_ftnptr (MonoDelegate *delegate);
183 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
186 mono_array_to_savearray (MonoArray *array);
189 mono_array_to_lparray (MonoArray *array);
192 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
195 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
198 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
201 mono_array_to_savearray (MonoArray *array);
204 mono_array_to_lparray (MonoArray *array);
207 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
210 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
212 static MonoThreadInfo*
213 mono_icall_start (HandleStackMark *stackmark, MonoError *error);
216 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error);
218 /* Lazy class loading functions */
219 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, "System.Text", "StringBuilder");
220 static GENERATE_GET_CLASS_WITH_CACHE (date_time, "System", "DateTime");
221 static GENERATE_GET_CLASS_WITH_CACHE (fixed_buffer_attribute, "System.Runtime.CompilerServices", "FixedBufferAttribute");
222 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
223 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, "System.Runtime.InteropServices", "ICustomMarshaler");
225 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
226 static MonoMethod *sh_dangerous_add_ref;
227 static MonoMethod *sh_dangerous_release;
232 sh_dangerous_add_ref = mono_class_get_method_from_name (
233 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
234 sh_dangerous_release = mono_class_get_method_from_name (
235 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
239 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
241 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
243 mono_register_jit_icall (func, name, sig, no_wrapper);
247 register_icall_no_wrapper (gpointer func, const char *name, const char *sigstr)
249 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
251 mono_register_jit_icall (func, name, sig, TRUE);
255 mono_signature_no_pinvoke (MonoMethod *method)
257 MonoMethodSignature *sig = mono_method_signature (method);
259 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
260 sig->pinvoke = FALSE;
267 mono_marshal_init_tls (void)
269 mono_native_tls_alloc (&last_error_tls_id, NULL);
270 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
274 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
277 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
278 mono_error_set_pending_exception (&error);
283 ves_icall_mono_string_from_utf16 (gunichar2 *data)
286 MonoString *result = mono_string_from_utf16_checked (data, &error);
287 mono_error_set_pending_exception (&error);
292 ves_icall_mono_string_to_utf8 (MonoString *str)
295 char *result = mono_string_to_utf8_checked (str, &error);
296 mono_error_set_pending_exception (&error);
301 mono_marshal_init (void)
303 static gboolean module_initialized = FALSE;
305 if (!module_initialized) {
306 module_initialized = TRUE;
307 mono_os_mutex_init_recursive (&marshal_mutex);
308 marshal_mutex_initialized = TRUE;
310 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
311 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
312 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
313 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
314 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
315 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
316 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
317 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
318 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
319 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
320 register_icall (mono_string_to_utf8str, "mono_string_to_utf8str", "ptr obj", FALSE);
321 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
322 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
323 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
324 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
325 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
326 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
327 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
328 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
329 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
330 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
331 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
332 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
333 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
334 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
335 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
336 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
337 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
338 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
339 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
340 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
341 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
342 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
343 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
344 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
345 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
346 register_icall (g_free, "g_free", "void ptr", FALSE);
347 register_icall_no_wrapper (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr");
348 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
349 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
350 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
351 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
352 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
353 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
354 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
355 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
356 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
357 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
358 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
359 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
360 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
361 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
362 register_icall (mono_icall_start, "mono_icall_start", "ptr ptr ptr", TRUE);
363 register_icall (mono_icall_end, "mono_icall_end", "void ptr ptr ptr", TRUE);
364 register_icall (mono_handle_new_full, "mono_handle_new_full", "ptr ptr bool", TRUE);
366 mono_cominterop_init ();
367 mono_remoting_init ();
369 mono_counters_register ("MonoClass::class_marshal_info_count count",
370 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_marshal_info_count);
376 mono_marshal_cleanup (void)
378 mono_cominterop_cleanup ();
380 mono_native_tls_free (load_type_info_tls_id);
381 mono_native_tls_free (last_error_tls_id);
382 mono_os_mutex_destroy (&marshal_mutex);
383 marshal_mutex_initialized = FALSE;
387 mono_marshal_lock_internal (void)
389 mono_marshal_lock ();
393 mono_marshal_unlock_internal (void)
395 mono_marshal_unlock ();
398 /* This is a JIT icall, it sets the pending exception and return NULL on error */
400 mono_delegate_to_ftnptr (MonoDelegate *delegate)
403 MonoMethod *method, *wrapper;
405 uint32_t target_handle = 0;
410 if (delegate->delegate_trampoline)
411 return delegate->delegate_trampoline;
413 klass = ((MonoObject *)delegate)->vtable->klass;
414 g_assert (klass->delegate);
416 method = delegate->method;
417 if (delegate->method_is_virtual)
418 method = mono_object_get_virtual_method (delegate->target, method);
420 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
421 const char *exc_class, *exc_arg;
424 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
426 g_assert (exc_class);
427 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
433 if (delegate->target) {
434 /* Produce a location which can be embedded in JITted code */
435 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
438 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle, &error);
442 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
446 // Add the delegate to the delegate hash table
447 delegate_hash_table_add (delegate);
449 /* when the object is collected, collect the dynamic method, too */
450 mono_object_register_finalizer ((MonoObject*)delegate);
452 return delegate->delegate_trampoline;
455 if (target_handle != 0)
456 mono_gchandle_free (target_handle);
457 mono_error_set_pending_exception (&error);
462 * this hash table maps from a delegate trampoline object to a weak reference
463 * of the delegate. As an optimizations with a non-moving GC we store the
464 * object pointer itself, otherwise we use a GC handle.
466 static GHashTable *delegate_hash_table;
469 delegate_hash_table_new (void) {
470 return g_hash_table_new (NULL, NULL);
474 delegate_hash_table_remove (MonoDelegate *d)
476 guint32 gchandle = 0;
478 mono_marshal_lock ();
479 if (delegate_hash_table == NULL)
480 delegate_hash_table = delegate_hash_table_new ();
481 if (mono_gc_is_moving ())
482 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
483 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
484 mono_marshal_unlock ();
485 if (gchandle && mono_gc_is_moving ())
486 mono_gchandle_free (gchandle);
490 delegate_hash_table_add (MonoDelegate *d)
493 guint32 old_gchandle;
495 mono_marshal_lock ();
496 if (delegate_hash_table == NULL)
497 delegate_hash_table = delegate_hash_table_new ();
498 if (mono_gc_is_moving ()) {
499 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
500 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
501 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
503 mono_gchandle_free (old_gchandle);
505 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
507 mono_marshal_unlock ();
511 * mono_marshal_use_aot_wrappers:
513 * Instructs this module to use AOT compatible wrappers.
516 mono_marshal_use_aot_wrappers (gboolean use)
518 use_aot_wrappers = use;
522 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
525 MonoCustomAttrInfo *cinfo;
526 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
528 /* The attribute is only available in Net 2.0 */
529 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
531 * The pinvoke attributes are stored in a real custom attribute so we have to
534 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
535 if (!mono_error_ok (&error)) {
536 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
537 mono_error_cleanup (&error);
539 if (cinfo && !mono_runtime_get_no_exec ()) {
540 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
542 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
544 if (!mono_error_ok (&error)) {
545 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
546 mono_error_cleanup (&error);
550 mono_custom_attrs_free (cinfo);
555 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
557 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
566 mono_marshal_lock ();
567 if (delegate_hash_table == NULL)
568 delegate_hash_table = delegate_hash_table_new ();
570 if (mono_gc_is_moving ()) {
571 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
572 mono_marshal_unlock ();
574 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
578 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
579 mono_marshal_unlock ();
582 /* This is a native function, so construct a delegate for it */
583 MonoMethodSignature *sig;
585 MonoMarshalSpec **mspecs;
586 MonoMethod *invoke = mono_get_delegate_invoke (klass);
587 MonoMethodPInvoke piinfo;
588 MonoObject *this_obj;
591 if (use_aot_wrappers) {
592 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
593 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
594 if (!is_ok (&error)) {
595 mono_error_set_pending_exception (&error);
599 memset (&piinfo, 0, sizeof (piinfo));
600 parse_unmanaged_function_pointer_attr (klass, &piinfo);
602 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
603 mono_method_get_marshal_info (invoke, mspecs);
604 /* Freed below so don't alloc from mempool */
605 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
608 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
611 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
613 mono_metadata_free_marshal_spec (mspecs [i]);
618 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
619 if (!mono_error_ok (&error)) {
620 mono_error_set_pending_exception (&error);
623 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
624 if (mono_error_set_pending_exception (&error))
626 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
627 if (mono_error_set_pending_exception (&error))
631 if (d->object.vtable->domain != mono_domain_get ()) {
632 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
640 mono_delegate_free_ftnptr (MonoDelegate *delegate)
645 delegate_hash_table_remove (delegate);
647 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
649 if (!delegate->target) {
650 /* The wrapper method is shared between delegates -> no need to free it */
659 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
662 method = mono_jit_info_get_method (ji);
663 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
665 /*the target gchandle is the first entry after size and the wrapper itself.*/
666 gchandle = GPOINTER_TO_UINT (method_data [2]);
669 mono_gchandle_free (gchandle);
671 mono_runtime_free_method (mono_object_domain (delegate), method);
675 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
677 mono_string_from_byvalstr (const char *data, int max_len)
680 MonoDomain *domain = mono_domain_get ();
686 while (len < max_len - 1 && data [len])
689 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
690 mono_error_set_pending_exception (&error);
694 /* This is a JIT icall, it sets the pending exception and return NULL on error */
696 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
699 MonoString *res = NULL;
700 MonoDomain *domain = mono_domain_get ();
706 while (data [len]) len++;
708 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
709 if (!mono_error_ok (&error)) {
710 mono_error_set_pending_exception (&error);
717 mono_array_to_savearray (MonoArray *array)
722 g_assert_not_reached ();
727 mono_array_to_lparray (MonoArray *array)
730 gpointer *nativeArray = NULL;
731 int nativeArraySize = 0;
741 klass = array->obj.vtable->klass;
743 switch (klass->element_class->byval_arg.type) {
745 g_assert_not_reached ();
747 case MONO_TYPE_CLASS:
748 nativeArraySize = array->max_length;
749 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
750 for(i = 0; i < nativeArraySize; ++i)
751 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
754 case MONO_TYPE_BOOLEAN:
767 case MONO_TYPE_VALUETYPE:
771 case MONO_TYPE_GENERICINST:
772 case MONO_TYPE_OBJECT:
773 case MONO_TYPE_ARRAY:
774 case MONO_TYPE_SZARRAY:
775 case MONO_TYPE_STRING:
777 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
778 g_assert_not_reached ();
781 return array->vector;
785 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
796 klass = array->obj.vtable->klass;
798 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
799 for(i = 0; i < array->max_length; ++i)
800 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
801 g_free (nativeArray);
807 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
809 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
811 if (elclass == mono_defaults.byte_class) {
812 GError *error = NULL;
816 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
819 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
823 g_error_free (error);
826 g_assert_not_reached ();
830 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
832 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
835 /* This is a JIT icall, it sets the pending exception and returns on error */
837 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
839 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
841 if (elclass == mono_defaults.byte_class) {
843 GError *error = NULL;
845 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
847 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
848 g_error_free (error);
852 memcpy (native_arr, as, MIN (strlen (as), elnum));
855 g_assert_not_reached ();
860 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
862 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
865 static MonoStringBuilder *
866 mono_string_builder_new (int starting_string_length)
868 static MonoClass *string_builder_class;
869 static MonoMethod *sb_ctor;
870 static void *args [1];
873 int initial_len = starting_string_length;
879 MonoMethodDesc *desc;
882 string_builder_class = mono_class_get_string_builder_class ();
883 g_assert (string_builder_class);
884 desc = mono_method_desc_new (":.ctor(int)", FALSE);
885 m = mono_method_desc_search_in_class (desc, string_builder_class);
887 mono_method_desc_free (desc);
888 mono_memory_barrier ();
892 // We make a new array in the _to_builder function, so this
893 // array will always be garbage collected.
894 args [0] = &initial_len;
896 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
897 mono_error_assert_ok (&error);
900 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
901 g_assert (exc == NULL);
902 mono_error_assert_ok (&error);
904 g_assert (sb->chunkChars->max_length >= initial_len);
910 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
912 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
913 gunichar2 *charSrc = (gunichar2 *)text;
914 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
916 sb->chunkLength = string_len;
922 mono_string_utf16_to_builder2 (gunichar2 *text)
928 for (len = 0; text [len] != 0; ++len);
930 MonoStringBuilder *sb = mono_string_builder_new (len);
931 mono_string_utf16_to_builder (sb, text);
937 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
942 GError *error = NULL;
944 gunichar2* ut = g_utf8_to_utf16 (text, strlen (text), NULL, &copied, &error);
945 int capacity = mono_string_builder_capacity (sb);
947 if (copied > capacity)
951 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
952 mono_string_utf16_to_builder_copy (sb, ut, copied);
954 g_error_free (error);
960 mono_string_utf8_to_builder2 (char *text)
965 int len = strlen (text);
966 MonoStringBuilder *sb = mono_string_builder_new (len);
967 mono_string_utf8_to_builder (sb, text);
973 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
979 for (len = 0; text [len] != 0; ++len);
981 if (len > mono_string_builder_capacity (sb))
982 len = mono_string_builder_capacity (sb);
984 mono_string_utf16_to_builder_copy (sb, text, len);
988 * mono_string_builder_to_utf8:
989 * \param sb the string builder
991 * Converts to utf8 the contents of the \c MonoStringBuilder .
993 * \returns a utf8 string with the contents of the \c StringBuilder .
995 * The return value must be released with mono_marshal_free.
997 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1000 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
1003 GError *gerror = NULL;
1008 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
1010 guint str_len = mono_string_builder_string_length (sb);
1012 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
1015 g_error_free (gerror);
1016 mono_marshal_free (str_utf16);
1017 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1020 guint len = mono_string_builder_capacity (sb) + 1;
1021 gchar *res = (gchar *)mono_marshal_alloc (MAX (byte_count+1, len * sizeof (gchar)), &error);
1022 if (!mono_error_ok (&error)) {
1023 mono_marshal_free (str_utf16);
1025 mono_error_set_pending_exception (&error);
1029 memcpy (res, tmp, byte_count);
1030 res[byte_count] = '\0';
1032 mono_marshal_free (str_utf16);
1039 * mono_string_builder_to_utf16:
1040 * \param sb the string builder
1042 * Converts to utf16 the contents of the \c MonoStringBuilder .
1044 * Returns: a utf16 string with the contents of the \c StringBuilder .
1046 * The return value must be released with mono_marshal_free.
1048 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1051 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1058 g_assert (sb->chunkChars);
1060 guint len = mono_string_builder_capacity (sb);
1065 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1066 if (!mono_error_ok (&error)) {
1067 mono_error_set_pending_exception (&error);
1076 MonoStringBuilder* chunk = sb;
1078 if (chunk->chunkLength > 0) {
1079 // Check that we will not overrun our boundaries.
1080 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1082 if (chunk->chunkLength <= len) {
1083 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1085 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1088 len -= chunk->chunkLength;
1090 chunk = chunk->chunkPrevious;
1091 } while (chunk != NULL);
1097 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1099 mono_string_to_utf8str (MonoString *s)
1102 char *result = mono_string_to_utf8_checked (s, &error);
1103 mono_error_set_pending_exception (&error);
1109 mono_string_to_ansibstr (MonoString *string_obj)
1111 g_error ("UnmanagedMarshal.BStr is not implemented.");
1116 * mono_string_to_byvalstr:
1117 * \param dst Where to store the null-terminated utf8 decoded string.
1118 * \param src the \c MonoString to copy.
1119 * \param size the maximum number of bytes to copy.
1121 * Copies the \c MonoString pointed to by \p src as a utf8 string
1122 * into \p dst, it copies at most \p size bytes into the destination.
1125 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1131 g_assert (dst != NULL);
1132 g_assert (size > 0);
1134 memset (dst, 0, size);
1138 s = mono_string_to_utf8_checked (src, &error);
1139 if (mono_error_set_pending_exception (&error))
1141 len = MIN (size, strlen (s));
1144 memcpy (dst, s, len);
1149 * mono_string_to_byvalwstr:
1150 * \param dst Where to store the null-terminated utf16 decoded string.
1151 * \param src the \c MonoString to copy.
1152 * \param size the maximum number of wide characters to copy (each consumes 2 bytes)
1154 * Copies the \c MonoString pointed to by \p src as a utf16 string into
1155 * \p dst, it copies at most \p size bytes into the destination (including
1156 * a terminating 16-bit zero terminator).
1159 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1163 g_assert (dst != NULL);
1164 g_assert (size > 1);
1167 memset (dst, 0, size * 2);
1171 len = MIN (size, (mono_string_length (src)));
1172 memcpy (dst, mono_string_chars (src), len * 2);
1173 if (size <= mono_string_length (src))
1175 *((gunichar2 *) dst + len) = 0;
1178 /* this is an icall, it sets the pending exception and returns NULL on error */
1180 mono_string_new_len_wrapper (const char *text, guint length)
1183 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1184 mono_error_set_pending_exception (&error);
1191 * mono_mb_emit_exception_marshal_directive:
1193 * This function assumes ownership of MSG, which should be malloc-ed.
1196 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1201 s = mono_image_strdup (mb->method->klass->image, msg);
1206 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1209 #endif /* !DISABLE_JIT */
1212 mono_type_to_ldind (MonoType *type)
1218 switch (type->type) {
1220 return CEE_LDIND_I1;
1222 case MONO_TYPE_BOOLEAN:
1223 return CEE_LDIND_U1;
1225 return CEE_LDIND_I2;
1227 case MONO_TYPE_CHAR:
1228 return CEE_LDIND_U2;
1230 return CEE_LDIND_I4;
1232 return CEE_LDIND_U4;
1236 case MONO_TYPE_FNPTR:
1238 case MONO_TYPE_CLASS:
1239 case MONO_TYPE_STRING:
1240 case MONO_TYPE_OBJECT:
1241 case MONO_TYPE_SZARRAY:
1242 case MONO_TYPE_ARRAY:
1243 return CEE_LDIND_REF;
1246 return CEE_LDIND_I8;
1248 return CEE_LDIND_R4;
1250 return CEE_LDIND_R8;
1251 case MONO_TYPE_VALUETYPE:
1252 if (type->data.klass->enumtype) {
1253 type = mono_class_enum_basetype (type->data.klass);
1257 case MONO_TYPE_TYPEDBYREF:
1259 case MONO_TYPE_GENERICINST:
1260 type = &type->data.generic_class->container_class->byval_arg;
1263 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1269 mono_type_to_stind (MonoType *type)
1272 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1276 switch (type->type) {
1279 case MONO_TYPE_BOOLEAN:
1280 return CEE_STIND_I1;
1283 case MONO_TYPE_CHAR:
1284 return CEE_STIND_I2;
1287 return CEE_STIND_I4;
1291 case MONO_TYPE_FNPTR:
1293 case MONO_TYPE_CLASS:
1294 case MONO_TYPE_STRING:
1295 case MONO_TYPE_OBJECT:
1296 case MONO_TYPE_SZARRAY:
1297 case MONO_TYPE_ARRAY:
1298 return CEE_STIND_REF;
1301 return CEE_STIND_I8;
1303 return CEE_STIND_R4;
1305 return CEE_STIND_R8;
1306 case MONO_TYPE_VALUETYPE:
1307 if (type->data.klass->enumtype) {
1308 type = mono_class_enum_basetype (type->data.klass);
1312 case MONO_TYPE_TYPEDBYREF:
1314 case MONO_TYPE_GENERICINST:
1315 type = &type->data.generic_class->container_class->byval_arg;
1318 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1326 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1329 case MONO_MARSHAL_CONV_BOOL_I4:
1330 mono_mb_emit_ldloc (mb, 1);
1331 mono_mb_emit_ldloc (mb, 0);
1332 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1333 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1334 mono_mb_emit_byte (mb, 3);
1335 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1336 mono_mb_emit_byte (mb, CEE_BR_S);
1337 mono_mb_emit_byte (mb, 1);
1338 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1339 mono_mb_emit_byte (mb, CEE_STIND_I1);
1341 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1342 mono_mb_emit_ldloc (mb, 1);
1343 mono_mb_emit_ldloc (mb, 0);
1344 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1345 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1346 mono_mb_emit_byte (mb, 3);
1347 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1348 mono_mb_emit_byte (mb, CEE_BR_S);
1349 mono_mb_emit_byte (mb, 1);
1350 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1351 mono_mb_emit_byte (mb, CEE_STIND_I1);
1353 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1354 MonoClass *eklass = NULL;
1357 if (type->type == MONO_TYPE_SZARRAY) {
1358 eklass = type->data.klass;
1360 g_assert_not_reached ();
1363 esize = mono_class_native_size (eklass, NULL);
1365 /* create a new array */
1366 mono_mb_emit_ldloc (mb, 1);
1367 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1368 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1369 mono_mb_emit_byte (mb, CEE_STIND_REF);
1371 if (eklass->blittable) {
1372 /* copy the elements */
1373 mono_mb_emit_ldloc (mb, 1);
1374 mono_mb_emit_byte (mb, CEE_LDIND_I);
1375 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1376 mono_mb_emit_byte (mb, CEE_ADD);
1377 mono_mb_emit_ldloc (mb, 0);
1378 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1379 mono_mb_emit_byte (mb, CEE_PREFIX1);
1380 mono_mb_emit_byte (mb, CEE_CPBLK);
1383 int array_var, src_var, dst_var, index_var;
1384 guint32 label2, label3;
1386 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1387 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1388 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1391 mono_mb_emit_ldloc (mb, 1);
1392 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1393 mono_mb_emit_stloc (mb, array_var);
1395 /* save the old src pointer */
1396 mono_mb_emit_ldloc (mb, 0);
1397 mono_mb_emit_stloc (mb, src_var);
1398 /* save the old dst pointer */
1399 mono_mb_emit_ldloc (mb, 1);
1400 mono_mb_emit_stloc (mb, dst_var);
1402 /* Emit marshalling loop */
1403 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1404 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1405 mono_mb_emit_stloc (mb, index_var);
1408 label2 = mono_mb_get_label (mb);
1409 mono_mb_emit_ldloc (mb, index_var);
1410 mono_mb_emit_ldloc (mb, array_var);
1411 mono_mb_emit_byte (mb, CEE_LDLEN);
1412 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1414 /* src is already set */
1417 mono_mb_emit_ldloc (mb, array_var);
1418 mono_mb_emit_ldloc (mb, index_var);
1419 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1420 mono_mb_emit_stloc (mb, 1);
1422 /* Do the conversion */
1423 emit_struct_conv (mb, eklass, TRUE);
1426 mono_mb_emit_add_to_local (mb, index_var, 1);
1428 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1430 mono_mb_patch_branch (mb, label3);
1432 /* restore the old src pointer */
1433 mono_mb_emit_ldloc (mb, src_var);
1434 mono_mb_emit_stloc (mb, 0);
1435 /* restore the old dst pointer */
1436 mono_mb_emit_ldloc (mb, dst_var);
1437 mono_mb_emit_stloc (mb, 1);
1441 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1442 MonoClass *eclass = mono_defaults.char_class;
1444 /* create a new array */
1445 mono_mb_emit_ldloc (mb, 1);
1446 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1447 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1448 mono_mb_emit_byte (mb, CEE_STIND_REF);
1450 mono_mb_emit_ldloc (mb, 1);
1451 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1452 mono_mb_emit_ldloc (mb, 0);
1453 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1454 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1457 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1458 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1459 mono_mb_emit_ldloc (mb, 1);
1460 mono_mb_emit_ldloc (mb, 0);
1461 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1462 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1464 mono_mb_emit_ldloc (mb, 1);
1465 mono_mb_emit_ldloc (mb, 0);
1466 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1468 mono_mb_emit_byte (mb, CEE_STIND_REF);
1470 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1471 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1472 mono_mb_emit_ldloc (mb, 1);
1473 mono_mb_emit_ldloc (mb, 0);
1474 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1475 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1477 mono_mb_emit_ldloc (mb, 1);
1478 mono_mb_emit_ldloc (mb, 0);
1479 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1481 mono_mb_emit_byte (mb, CEE_STIND_REF);
1483 case MONO_MARSHAL_CONV_STR_LPTSTR:
1484 mono_mb_emit_ldloc (mb, 1);
1485 mono_mb_emit_ldloc (mb, 0);
1486 mono_mb_emit_byte (mb, CEE_LDIND_I);
1488 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1490 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1492 mono_mb_emit_byte (mb, CEE_STIND_REF);
1495 // In Mono historically LPSTR was treated as a UTF8STR
1496 case MONO_MARSHAL_CONV_STR_LPSTR:
1497 case MONO_MARSHAL_CONV_STR_UTF8STR:
1498 mono_mb_emit_ldloc (mb, 1);
1499 mono_mb_emit_ldloc (mb, 0);
1500 mono_mb_emit_byte (mb, CEE_LDIND_I);
1501 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1502 mono_mb_emit_byte (mb, CEE_STIND_REF);
1504 case MONO_MARSHAL_CONV_STR_LPWSTR:
1505 mono_mb_emit_ldloc (mb, 1);
1506 mono_mb_emit_ldloc (mb, 0);
1507 mono_mb_emit_byte (mb, CEE_LDIND_I);
1508 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1509 mono_mb_emit_byte (mb, CEE_STIND_REF);
1511 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1512 MonoClass *klass = mono_class_from_mono_type (type);
1513 int src_var, dst_var;
1515 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1516 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1518 /* *dst = new object */
1519 mono_mb_emit_ldloc (mb, 1);
1520 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1521 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1522 mono_mb_emit_byte (mb, CEE_STIND_REF);
1524 /* save the old src pointer */
1525 mono_mb_emit_ldloc (mb, 0);
1526 mono_mb_emit_stloc (mb, src_var);
1527 /* save the old dst pointer */
1528 mono_mb_emit_ldloc (mb, 1);
1529 mono_mb_emit_stloc (mb, dst_var);
1531 /* dst = pointer to newly created object data */
1532 mono_mb_emit_ldloc (mb, 1);
1533 mono_mb_emit_byte (mb, CEE_LDIND_I);
1534 mono_mb_emit_icon (mb, sizeof (MonoObject));
1535 mono_mb_emit_byte (mb, CEE_ADD);
1536 mono_mb_emit_stloc (mb, 1);
1538 emit_struct_conv (mb, klass, TRUE);
1540 /* restore the old src pointer */
1541 mono_mb_emit_ldloc (mb, src_var);
1542 mono_mb_emit_stloc (mb, 0);
1543 /* restore the old dst pointer */
1544 mono_mb_emit_ldloc (mb, dst_var);
1545 mono_mb_emit_stloc (mb, 1);
1548 case MONO_MARSHAL_CONV_DEL_FTN: {
1549 MonoClass *klass = mono_class_from_mono_type (type);
1551 mono_mb_emit_ldloc (mb, 1);
1552 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1553 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1554 mono_mb_emit_ldloc (mb, 0);
1555 mono_mb_emit_byte (mb, CEE_LDIND_I);
1556 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1557 mono_mb_emit_byte (mb, CEE_STIND_REF);
1560 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1561 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1565 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1566 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1567 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1568 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1570 #endif /* DISABLE_COM */
1572 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1574 * Passing SafeHandles as ref does not allow the unmanaged code
1575 * to change the SafeHandle value. If the value is changed,
1576 * we should issue a diagnostic exception (NotSupportedException)
1577 * that informs the user that changes to handles in unmanaged code
1580 * Since we currently have no access to the original
1581 * SafeHandle that was used during the marshalling,
1582 * for now we just ignore this, and ignore/discard any
1583 * changes that might have happened to the handle.
1588 case MONO_MARSHAL_CONV_HANDLEREF: {
1590 * Passing HandleRefs in a struct that is ref()ed does not
1591 * copy the values back to the HandleRef
1596 case MONO_MARSHAL_CONV_STR_BSTR:
1597 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1598 case MONO_MARSHAL_CONV_STR_TBSTR:
1599 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1601 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1603 mono_mb_emit_exception_marshal_directive (mb, msg);
1610 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1613 if (!ind_store_type)
1614 ind_store_type = &dummy;
1615 *ind_store_type = CEE_STIND_I;
1617 case MONO_MARSHAL_CONV_STR_LPWSTR:
1618 return mono_marshal_string_to_utf16;
1619 case MONO_MARSHAL_CONV_LPWSTR_STR:
1620 *ind_store_type = CEE_STIND_REF;
1621 return ves_icall_mono_string_from_utf16;
1622 case MONO_MARSHAL_CONV_LPTSTR_STR:
1623 *ind_store_type = CEE_STIND_REF;
1624 return mono_string_new_wrapper;
1625 case MONO_MARSHAL_CONV_UTF8STR_STR:
1626 case MONO_MARSHAL_CONV_LPSTR_STR:
1627 *ind_store_type = CEE_STIND_REF;
1628 return mono_string_new_wrapper;
1629 case MONO_MARSHAL_CONV_STR_LPTSTR:
1631 return mono_marshal_string_to_utf16;
1633 return mono_string_to_utf8str;
1635 // In Mono historically LPSTR was treated as a UTF8STR
1636 case MONO_MARSHAL_CONV_STR_UTF8STR:
1637 case MONO_MARSHAL_CONV_STR_LPSTR:
1638 return mono_string_to_utf8str;
1639 case MONO_MARSHAL_CONV_STR_BSTR:
1640 return mono_string_to_bstr;
1641 case MONO_MARSHAL_CONV_BSTR_STR:
1642 *ind_store_type = CEE_STIND_REF;
1643 return mono_string_from_bstr_icall;
1644 case MONO_MARSHAL_CONV_STR_TBSTR:
1645 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1646 return mono_string_to_ansibstr;
1647 case MONO_MARSHAL_CONV_SB_UTF8STR:
1648 case MONO_MARSHAL_CONV_SB_LPSTR:
1649 return mono_string_builder_to_utf8;
1650 case MONO_MARSHAL_CONV_SB_LPTSTR:
1652 return mono_string_builder_to_utf16;
1654 return mono_string_builder_to_utf8;
1656 case MONO_MARSHAL_CONV_SB_LPWSTR:
1657 return mono_string_builder_to_utf16;
1658 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1659 return mono_array_to_savearray;
1660 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1661 return mono_array_to_lparray;
1662 case MONO_MARSHAL_FREE_LPARRAY:
1663 return mono_free_lparray;
1664 case MONO_MARSHAL_CONV_DEL_FTN:
1665 return mono_delegate_to_ftnptr;
1666 case MONO_MARSHAL_CONV_FTN_DEL:
1667 *ind_store_type = CEE_STIND_REF;
1668 return mono_ftnptr_to_delegate;
1669 case MONO_MARSHAL_CONV_UTF8STR_SB:
1670 case MONO_MARSHAL_CONV_LPSTR_SB:
1671 *ind_store_type = CEE_STIND_REF;
1672 return mono_string_utf8_to_builder;
1673 case MONO_MARSHAL_CONV_LPTSTR_SB:
1674 *ind_store_type = CEE_STIND_REF;
1676 return mono_string_utf16_to_builder;
1678 return mono_string_utf8_to_builder;
1680 case MONO_MARSHAL_CONV_LPWSTR_SB:
1681 *ind_store_type = CEE_STIND_REF;
1682 return mono_string_utf16_to_builder;
1683 case MONO_MARSHAL_FREE_ARRAY:
1684 return mono_marshal_free_array;
1685 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1686 return mono_string_to_byvalstr;
1687 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1688 return mono_string_to_byvalwstr;
1690 g_assert_not_reached ();
1697 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1703 case MONO_MARSHAL_CONV_BOOL_I4:
1704 mono_mb_emit_ldloc (mb, 1);
1705 mono_mb_emit_ldloc (mb, 0);
1706 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1707 mono_mb_emit_byte (mb, CEE_STIND_I4);
1709 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1710 mono_mb_emit_ldloc (mb, 1);
1711 mono_mb_emit_ldloc (mb, 0);
1712 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1713 mono_mb_emit_byte (mb, CEE_NEG);
1714 mono_mb_emit_byte (mb, CEE_STIND_I2);
1716 // In Mono historically LPSTR was treated as a UTF8STR
1717 case MONO_MARSHAL_CONV_STR_UTF8STR:
1718 case MONO_MARSHAL_CONV_STR_LPWSTR:
1719 case MONO_MARSHAL_CONV_STR_LPSTR:
1720 case MONO_MARSHAL_CONV_STR_LPTSTR:
1721 case MONO_MARSHAL_CONV_STR_BSTR:
1722 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1723 case MONO_MARSHAL_CONV_STR_TBSTR: {
1726 /* free space if free == true */
1727 mono_mb_emit_ldloc (mb, 2);
1728 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1729 mono_mb_emit_ldloc (mb, 1);
1730 mono_mb_emit_byte (mb, CEE_LDIND_I);
1731 mono_mb_emit_icall (mb, g_free);
1732 mono_mb_patch_short_branch (mb, pos);
1734 mono_mb_emit_ldloc (mb, 1);
1735 mono_mb_emit_ldloc (mb, 0);
1736 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1737 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1738 mono_mb_emit_byte (mb, stind_op);
1741 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1742 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1743 case MONO_MARSHAL_CONV_DEL_FTN:
1744 mono_mb_emit_ldloc (mb, 1);
1745 mono_mb_emit_ldloc (mb, 0);
1746 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1747 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1748 mono_mb_emit_byte (mb, stind_op);
1750 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1751 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1754 mono_mb_emit_ldloc (mb, 1); /* dst */
1755 mono_mb_emit_ldloc (mb, 0);
1756 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1757 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1758 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1761 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1762 MonoClass *eklass = NULL;
1765 if (type->type == MONO_TYPE_SZARRAY) {
1766 eklass = type->data.klass;
1768 g_assert_not_reached ();
1771 if (eklass->valuetype)
1772 esize = mono_class_native_size (eklass, NULL);
1774 esize = sizeof (gpointer);
1776 mono_mb_emit_ldloc (mb, 0);
1777 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1778 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1780 if (eklass->blittable) {
1781 mono_mb_emit_ldloc (mb, 1);
1782 mono_mb_emit_ldloc (mb, 0);
1783 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1784 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1785 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1786 mono_mb_emit_byte (mb, CEE_PREFIX1);
1787 mono_mb_emit_byte (mb, CEE_CPBLK);
1789 int array_var, src_var, dst_var, index_var;
1790 guint32 label2, label3;
1792 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1793 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1794 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1797 mono_mb_emit_ldloc (mb, 0);
1798 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1799 mono_mb_emit_stloc (mb, array_var);
1801 /* save the old src pointer */
1802 mono_mb_emit_ldloc (mb, 0);
1803 mono_mb_emit_stloc (mb, src_var);
1804 /* save the old dst pointer */
1805 mono_mb_emit_ldloc (mb, 1);
1806 mono_mb_emit_stloc (mb, dst_var);
1808 /* Emit marshalling loop */
1809 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1810 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1811 mono_mb_emit_stloc (mb, index_var);
1814 label2 = mono_mb_get_label (mb);
1815 mono_mb_emit_ldloc (mb, index_var);
1816 mono_mb_emit_ldloc (mb, array_var);
1817 mono_mb_emit_byte (mb, CEE_LDLEN);
1818 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1821 mono_mb_emit_ldloc (mb, array_var);
1822 mono_mb_emit_ldloc (mb, index_var);
1823 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1824 mono_mb_emit_stloc (mb, 0);
1826 /* dst is already set */
1828 /* Do the conversion */
1829 emit_struct_conv (mb, eklass, FALSE);
1832 mono_mb_emit_add_to_local (mb, index_var, 1);
1834 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1836 mono_mb_patch_branch (mb, label3);
1838 /* restore the old src pointer */
1839 mono_mb_emit_ldloc (mb, src_var);
1840 mono_mb_emit_stloc (mb, 0);
1841 /* restore the old dst pointer */
1842 mono_mb_emit_ldloc (mb, dst_var);
1843 mono_mb_emit_stloc (mb, 1);
1846 mono_mb_patch_branch (mb, pos);
1849 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1850 mono_mb_emit_ldloc (mb, 0);
1851 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1852 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1854 mono_mb_emit_ldloc (mb, 1);
1855 mono_mb_emit_ldloc (mb, 0);
1856 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1857 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1858 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1859 mono_mb_patch_short_branch (mb, pos);
1862 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1863 int src_var, dst_var;
1865 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1866 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1868 mono_mb_emit_ldloc (mb, 0);
1869 mono_mb_emit_byte (mb, CEE_LDIND_I);
1870 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1872 /* save the old src pointer */
1873 mono_mb_emit_ldloc (mb, 0);
1874 mono_mb_emit_stloc (mb, src_var);
1875 /* save the old dst pointer */
1876 mono_mb_emit_ldloc (mb, 1);
1877 mono_mb_emit_stloc (mb, dst_var);
1879 /* src = pointer to object data */
1880 mono_mb_emit_ldloc (mb, 0);
1881 mono_mb_emit_byte (mb, CEE_LDIND_I);
1882 mono_mb_emit_icon (mb, sizeof (MonoObject));
1883 mono_mb_emit_byte (mb, CEE_ADD);
1884 mono_mb_emit_stloc (mb, 0);
1886 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1888 /* restore the old src pointer */
1889 mono_mb_emit_ldloc (mb, src_var);
1890 mono_mb_emit_stloc (mb, 0);
1891 /* restore the old dst pointer */
1892 mono_mb_emit_ldloc (mb, dst_var);
1893 mono_mb_emit_stloc (mb, 1);
1895 mono_mb_patch_branch (mb, pos);
1900 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1901 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1902 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1903 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1905 #endif /* DISABLE_COM */
1907 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1910 mono_mb_emit_ldloc (mb, 0);
1911 mono_mb_emit_byte (mb, CEE_LDIND_I);
1912 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1913 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1914 mono_mb_patch_branch (mb, pos);
1916 /* Pull the handle field from SafeHandle */
1917 mono_mb_emit_ldloc (mb, 1);
1918 mono_mb_emit_ldloc (mb, 0);
1919 mono_mb_emit_byte (mb, CEE_LDIND_I);
1920 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1921 mono_mb_emit_byte (mb, CEE_LDIND_I);
1922 mono_mb_emit_byte (mb, CEE_STIND_I);
1926 case MONO_MARSHAL_CONV_HANDLEREF: {
1927 mono_mb_emit_ldloc (mb, 1);
1928 mono_mb_emit_ldloc (mb, 0);
1929 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1930 mono_mb_emit_byte (mb, CEE_ADD);
1931 mono_mb_emit_byte (mb, CEE_LDIND_I);
1932 mono_mb_emit_byte (mb, CEE_STIND_I);
1937 g_error ("marshalling conversion %d not implemented", conv);
1943 offset_of_first_nonstatic_field (MonoClass *klass)
1946 int fcount = mono_class_get_field_count (klass);
1947 mono_class_setup_fields (klass);
1948 for (i = 0; i < fcount; i++) {
1949 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
1950 return klass->fields[i].offset - sizeof (MonoObject);
1957 get_fixed_buffer_attr (MonoClassField *field, MonoType **out_etype, int *out_len)
1960 MonoCustomAttrInfo *cinfo;
1961 MonoCustomAttrEntry *attr;
1964 cinfo = mono_custom_attrs_from_field_checked (field->parent, field, &error);
1965 if (!is_ok (&error))
1969 for (aindex = 0; aindex < cinfo->num_attrs; ++aindex) {
1970 MonoClass *ctor_class = cinfo->attrs [aindex].ctor->klass;
1971 if (mono_class_has_parent (ctor_class, mono_class_get_fixed_buffer_attribute_class ())) {
1972 attr = &cinfo->attrs [aindex];
1978 MonoArray *typed_args, *named_args;
1979 CattrNamedArg *arginfo;
1982 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
1983 if (!is_ok (&error))
1985 g_assert (mono_array_length (typed_args) == 2);
1988 o = mono_array_get (typed_args, MonoObject*, 0);
1989 *out_etype = monotype_cast (o)->type;
1990 o = mono_array_get (typed_args, MonoObject*, 1);
1991 g_assert (o->vtable->klass == mono_defaults.int32_class);
1992 *out_len = *(gint32*)mono_object_unbox (o);
1995 if (cinfo && !cinfo->cached)
1996 mono_custom_attrs_free (cinfo);
1997 return attr != NULL;
2001 emit_fixed_buf_conv (MonoMethodBuilder *mb, MonoType *type, MonoType *etype, int len, gboolean to_object, int *out_usize)
2003 MonoClass *klass = mono_class_from_mono_type (type);
2004 MonoClass *eklass = mono_class_from_mono_type (etype);
2007 esize = mono_class_native_size (eklass, NULL);
2009 MonoMarshalNative string_encoding = klass->unicode ? MONO_NATIVE_LPWSTR : MONO_NATIVE_LPSTR;
2010 int usize = mono_class_value_size (eklass, NULL);
2011 int msize = mono_class_value_size (eklass, NULL);
2013 //printf ("FIXED: %s %d %d\n", mono_type_full_name (type), eklass->blittable, string_encoding);
2015 if (eklass->blittable) {
2016 /* copy the elements */
2017 mono_mb_emit_ldloc (mb, 1);
2018 mono_mb_emit_ldloc (mb, 0);
2019 mono_mb_emit_icon (mb, len * esize);
2020 mono_mb_emit_byte (mb, CEE_PREFIX1);
2021 mono_mb_emit_byte (mb, CEE_CPBLK);
2024 guint32 label2, label3;
2026 /* Emit marshalling loop */
2027 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2028 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2029 mono_mb_emit_stloc (mb, index_var);
2032 label2 = mono_mb_get_label (mb);
2033 mono_mb_emit_ldloc (mb, index_var);
2034 mono_mb_emit_icon (mb, len);
2035 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2037 /* src/dst is already set */
2039 /* Do the conversion */
2040 MonoTypeEnum t = etype->type;
2046 case MONO_TYPE_BOOLEAN:
2049 case MONO_TYPE_CHAR:
2055 mono_mb_emit_ldloc (mb, 1);
2056 mono_mb_emit_ldloc (mb, 0);
2057 if (t == MONO_TYPE_CHAR && string_encoding != MONO_NATIVE_LPWSTR) {
2059 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2060 mono_mb_emit_byte (mb, CEE_STIND_I2);
2062 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2063 mono_mb_emit_byte (mb, CEE_STIND_I1);
2067 mono_mb_emit_byte (mb, mono_type_to_ldind (etype));
2068 mono_mb_emit_byte (mb, mono_type_to_stind (etype));
2072 g_assert_not_reached ();
2077 mono_mb_emit_add_to_local (mb, 0, usize);
2078 mono_mb_emit_add_to_local (mb, 1, msize);
2080 mono_mb_emit_add_to_local (mb, 0, msize);
2081 mono_mb_emit_add_to_local (mb, 1, usize);
2085 mono_mb_emit_add_to_local (mb, index_var, 1);
2087 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2089 mono_mb_patch_branch (mb, label3);
2092 *out_usize = usize * len;
2096 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
2097 int offset_of_first_child_field, MonoMarshalNative string_encoding)
2099 MonoMarshalType *info;
2103 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
2105 info = mono_marshal_load_type_info (klass);
2107 if (info->native_size == 0)
2110 if (klass->blittable) {
2111 int usize = mono_class_value_size (klass, NULL);
2112 g_assert (usize == info->native_size);
2113 mono_mb_emit_ldloc (mb, 1);
2114 mono_mb_emit_ldloc (mb, 0);
2115 mono_mb_emit_icon (mb, usize);
2116 mono_mb_emit_byte (mb, CEE_PREFIX1);
2117 mono_mb_emit_byte (mb, CEE_CPBLK);
2120 mono_mb_emit_add_to_local (mb, 0, usize);
2121 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
2123 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
2124 mono_mb_emit_add_to_local (mb, 1, usize);
2129 if (klass != mono_class_try_get_safehandle_class ()) {
2130 if (mono_class_is_auto_layout (klass)) {
2131 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
2132 mono_type_full_name (&klass->byval_arg));
2133 mono_mb_emit_exception_marshal_directive (mb, msg);
2138 for (i = 0; i < info->num_fields; i++) {
2139 MonoMarshalNative ntype;
2140 MonoMarshalConv conv;
2141 MonoType *ftype = info->fields [i].field->type;
2144 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2146 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2149 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2152 msize = klass->instance_size - info->fields [i].field->offset;
2153 usize = info->native_size - info->fields [i].offset;
2155 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2156 usize = info->fields [i + 1].offset - info->fields [i].offset;
2159 if (klass != mono_class_try_get_safehandle_class ()){
2161 * FIXME: Should really check for usize==0 and msize>0, but we apply
2162 * the layout to the managed structure as well.
2165 if (mono_class_is_explicit_layout (klass) && (usize == 0)) {
2166 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2167 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2168 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2169 "reference field at the same offset as another field.",
2170 mono_type_full_name (&klass->byval_arg));
2175 case MONO_MARSHAL_CONV_NONE: {
2178 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2179 g_assert (!ftype->byref);
2180 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2181 mono_mb_emit_ldloc (mb, 1);
2182 mono_mb_emit_ldloc (mb, 0);
2183 mono_mb_emit_byte (mb, CEE_LDIND_I);
2184 mono_mb_emit_byte (mb, CEE_STIND_I);
2195 case MONO_TYPE_BOOLEAN:
2198 case MONO_TYPE_CHAR:
2204 mono_mb_emit_ldloc (mb, 1);
2205 mono_mb_emit_ldloc (mb, 0);
2206 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2208 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2209 mono_mb_emit_byte (mb, CEE_STIND_I2);
2211 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2212 mono_mb_emit_byte (mb, CEE_STIND_I1);
2215 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2216 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2219 case MONO_TYPE_VALUETYPE: {
2220 int src_var, dst_var;
2224 if (ftype->data.klass->enumtype) {
2225 ftype = mono_class_enum_basetype (ftype->data.klass);
2229 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2230 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2232 /* save the old src pointer */
2233 mono_mb_emit_ldloc (mb, 0);
2234 mono_mb_emit_stloc (mb, src_var);
2235 /* save the old dst pointer */
2236 mono_mb_emit_ldloc (mb, 1);
2237 mono_mb_emit_stloc (mb, dst_var);
2239 if (get_fixed_buffer_attr (info->fields [i].field, &etype, &len)) {
2240 emit_fixed_buf_conv (mb, ftype, etype, len, to_object, &usize);
2242 emit_struct_conv (mb, ftype->data.klass, to_object);
2245 /* restore the old src pointer */
2246 mono_mb_emit_ldloc (mb, src_var);
2247 mono_mb_emit_stloc (mb, 0);
2248 /* restore the old dst pointer */
2249 mono_mb_emit_ldloc (mb, dst_var);
2250 mono_mb_emit_stloc (mb, 1);
2253 case MONO_TYPE_OBJECT: {
2256 static MonoMethod *variant_clear = NULL;
2257 static MonoMethod *get_object_for_native_variant = NULL;
2260 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2261 if (!get_object_for_native_variant)
2262 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2263 mono_mb_emit_ldloc (mb, 1);
2264 mono_mb_emit_ldloc (mb, 0);
2265 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2266 mono_mb_emit_byte (mb, CEE_STIND_REF);
2268 mono_mb_emit_ldloc (mb, 0);
2269 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2272 static MonoMethod *get_native_variant_for_object = NULL;
2274 if (!get_native_variant_for_object)
2275 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2277 mono_mb_emit_ldloc (mb, 0);
2278 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2279 mono_mb_emit_ldloc (mb, 1);
2280 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2283 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2284 mono_mb_emit_exception_marshal_directive (mb, msg);
2290 g_warning ("marshaling type %02x not implemented", ftype->type);
2291 g_assert_not_reached ();
2296 int src_var, dst_var;
2298 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2299 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2301 /* save the old src pointer */
2302 mono_mb_emit_ldloc (mb, 0);
2303 mono_mb_emit_stloc (mb, src_var);
2304 /* save the old dst pointer */
2305 mono_mb_emit_ldloc (mb, 1);
2306 mono_mb_emit_stloc (mb, dst_var);
2309 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2311 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2313 /* restore the old src pointer */
2314 mono_mb_emit_ldloc (mb, src_var);
2315 mono_mb_emit_stloc (mb, 0);
2316 /* restore the old dst pointer */
2317 mono_mb_emit_ldloc (mb, dst_var);
2318 mono_mb_emit_stloc (mb, 1);
2323 mono_mb_emit_add_to_local (mb, 0, usize);
2324 mono_mb_emit_add_to_local (mb, 1, msize);
2326 mono_mb_emit_add_to_local (mb, 0, msize);
2327 mono_mb_emit_add_to_local (mb, 1, usize);
2333 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2335 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2339 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2341 /* Call DestroyStructure */
2342 /* FIXME: Only do this if needed */
2343 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2344 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2345 mono_mb_emit_ldloc (mb, struct_var);
2346 mono_mb_emit_icall (mb, mono_struct_delete_old);
2350 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2352 int pos_noabort, pos_noex;
2354 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2355 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2356 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2357 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2359 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2360 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2362 mono_mb_emit_icall (mb, checkpoint_func);
2363 /* Throw the exception returned by the checkpoint function, if any */
2364 mono_mb_emit_byte (mb, CEE_DUP);
2365 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2366 mono_mb_emit_byte (mb, CEE_THROW);
2367 mono_mb_patch_branch (mb, pos_noex);
2368 mono_mb_emit_byte (mb, CEE_POP);
2370 mono_mb_patch_branch (mb, pos_noabort);
2374 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2376 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2379 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2383 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2385 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2389 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2391 emit_thread_interrupt_checkpoint (mb);
2395 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2397 emit_thread_force_interrupt_checkpoint (mb);
2400 #endif /* DISABLE_JIT */
2402 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2403 static MonoAsyncResult *
2404 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2407 MonoMulticastDelegate *mcast_delegate;
2411 g_assert (delegate);
2412 mcast_delegate = (MonoMulticastDelegate *) delegate;
2413 if (mcast_delegate->delegates != NULL) {
2414 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2418 #ifndef DISABLE_REMOTING
2419 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2420 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2421 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2422 /* If the target is a proxy, make a direct call. Is proxy's work
2423 // to make the call asynchronous.
2425 MonoMethodMessage *msg;
2426 MonoDelegate *async_callback;
2428 MonoAsyncResult *ares;
2430 MonoArray *out_args;
2431 method = delegate->method;
2433 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2434 if (mono_error_set_pending_exception (&error))
2436 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2437 if (mono_error_set_pending_exception (&error))
2439 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2440 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2441 MONO_OBJECT_SETREF (msg, async_result, ares);
2442 msg->call_type = CallType_BeginInvoke;
2445 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2446 if (!mono_error_ok (&error)) {
2447 mono_error_set_pending_exception (&error);
2451 mono_set_pending_exception ((MonoException *) exc);
2457 klass = delegate->object.vtable->klass;
2459 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2461 method = mono_get_delegate_invoke (klass);
2464 MonoAsyncResult *result = mono_threadpool_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2465 mono_error_set_pending_exception (&error);
2472 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2474 int i, params_var, tmp_var;
2476 /* allocate local (pointer) *params[] */
2477 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2478 /* allocate local (pointer) tmp */
2479 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2481 /* alloate space on stack to store an array of pointers to the arguments */
2482 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2483 mono_mb_emit_byte (mb, CEE_PREFIX1);
2484 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2485 mono_mb_emit_stloc (mb, params_var);
2488 mono_mb_emit_ldloc (mb, params_var);
2489 mono_mb_emit_stloc (mb, tmp_var);
2491 if (save_this && sig->hasthis) {
2492 mono_mb_emit_ldloc (mb, tmp_var);
2493 mono_mb_emit_ldarg_addr (mb, 0);
2494 mono_mb_emit_byte (mb, CEE_STIND_I);
2495 /* tmp = tmp + sizeof (gpointer) */
2496 if (sig->param_count)
2497 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2501 for (i = 0; i < sig->param_count; i++) {
2502 mono_mb_emit_ldloc (mb, tmp_var);
2503 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2504 mono_mb_emit_byte (mb, CEE_STIND_I);
2505 /* tmp = tmp + sizeof (gpointer) */
2506 if (i < (sig->param_count - 1))
2507 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2513 #endif /* DISABLE_JIT */
2516 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2520 GString *res = g_string_new ("");
2523 g_string_append (res, prefix);
2524 g_string_append_c (res, '_');
2527 mono_type_get_desc (res, sig->ret, FALSE);
2530 g_string_append (res, "__this__");
2532 for (i = 0; i < sig->param_count; ++i) {
2533 g_string_append_c (res, '_');
2534 mono_type_get_desc (res, sig->params [i], FALSE);
2537 g_string_free (res, FALSE);
2542 * mono_marshal_get_string_encoding:
2544 * Return the string encoding which should be used for a given parameter.
2546 static MonoMarshalNative
2547 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2549 /* First try the parameter marshal info */
2551 if (spec->native == MONO_NATIVE_LPARRAY) {
2552 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2553 return spec->data.array_data.elem_type;
2556 return spec->native;
2560 return MONO_NATIVE_LPSTR;
2562 /* Then try the method level marshal info */
2563 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2564 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2565 return MONO_NATIVE_LPSTR;
2566 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2567 return MONO_NATIVE_LPWSTR;
2568 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2570 return MONO_NATIVE_LPWSTR;
2572 return MONO_NATIVE_LPSTR;
2575 return MONO_NATIVE_LPSTR;
2579 static MonoMarshalConv
2580 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2582 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2585 case MONO_NATIVE_LPWSTR:
2586 return MONO_MARSHAL_CONV_STR_LPWSTR;
2587 case MONO_NATIVE_LPSTR:
2588 case MONO_NATIVE_VBBYREFSTR:
2589 return MONO_MARSHAL_CONV_STR_LPSTR;
2590 case MONO_NATIVE_LPTSTR:
2591 return MONO_MARSHAL_CONV_STR_LPTSTR;
2592 case MONO_NATIVE_BSTR:
2593 return MONO_MARSHAL_CONV_STR_BSTR;
2594 case MONO_NATIVE_UTF8STR:
2595 return MONO_MARSHAL_CONV_STR_UTF8STR;
2597 return MONO_MARSHAL_CONV_INVALID;
2601 static MonoMarshalConv
2602 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2604 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2607 case MONO_NATIVE_LPWSTR:
2608 return MONO_MARSHAL_CONV_SB_LPWSTR;
2609 case MONO_NATIVE_LPSTR:
2610 return MONO_MARSHAL_CONV_SB_LPSTR;
2611 case MONO_NATIVE_UTF8STR:
2612 return MONO_MARSHAL_CONV_SB_UTF8STR;
2613 case MONO_NATIVE_LPTSTR:
2614 return MONO_MARSHAL_CONV_SB_LPTSTR;
2616 return MONO_MARSHAL_CONV_INVALID;
2620 static MonoMarshalConv
2621 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2623 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2628 case MONO_NATIVE_LPWSTR:
2630 return MONO_MARSHAL_CONV_LPWSTR_STR;
2631 case MONO_NATIVE_UTF8STR:
2632 return MONO_MARSHAL_CONV_UTF8STR_STR;
2633 case MONO_NATIVE_LPSTR:
2634 case MONO_NATIVE_VBBYREFSTR:
2635 return MONO_MARSHAL_CONV_LPSTR_STR;
2636 case MONO_NATIVE_LPTSTR:
2640 return MONO_MARSHAL_CONV_LPTSTR_STR;
2641 case MONO_NATIVE_BSTR:
2642 return MONO_MARSHAL_CONV_BSTR_STR;
2644 return MONO_MARSHAL_CONV_INVALID;
2648 static MonoMarshalConv
2649 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2651 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2656 case MONO_NATIVE_LPWSTR:
2658 * mono_string_builder_to_utf16 does not allocate a
2659 * new buffer, so no need to free it.
2662 return MONO_MARSHAL_CONV_LPWSTR_SB;
2663 case MONO_NATIVE_UTF8STR:
2664 return MONO_MARSHAL_CONV_UTF8STR_SB;
2665 case MONO_NATIVE_LPSTR:
2666 return MONO_MARSHAL_CONV_LPSTR_SB;
2668 case MONO_NATIVE_LPTSTR:
2669 return MONO_MARSHAL_CONV_LPTSTR_SB;
2672 return MONO_MARSHAL_CONV_INVALID;
2677 * Return whenever a field of a native structure or an array member needs to
2681 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2683 MonoMarshalNative encoding;
2686 case MONO_TYPE_VALUETYPE:
2687 /* FIXME: Optimize this */
2689 case MONO_TYPE_OBJECT:
2690 case MONO_TYPE_CLASS:
2691 if (t->data.klass == mono_defaults.stringbuilder_class) {
2693 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2697 case MONO_TYPE_STRING:
2698 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2699 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2706 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2709 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2712 mono_marshal_lock ();
2715 g_hash_table_new (hash_func, equal_func);
2716 mono_memory_barrier ();
2719 mono_marshal_unlock ();
2725 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2727 return get_cache (var, hash_func, equal_func);
2731 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2735 mono_marshal_lock ();
2736 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2737 mono_marshal_unlock ();
2744 * Create a MonoMethod from MB, set INFO as wrapper info.
2747 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2748 int max_stack, WrapperInfo *info)
2752 res = mono_mb_create_method (mb, sig, max_stack);
2754 mono_marshal_set_wrapper_info (res, info);
2758 /* Create the method from the builder and place it in the cache */
2760 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2761 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2762 int max_stack, WrapperInfo *info, gboolean *out_found)
2769 mono_marshal_lock ();
2770 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2771 mono_marshal_unlock ();
2774 newm = mono_mb_create_method (mb, sig, max_stack);
2775 mono_marshal_lock ();
2776 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2779 g_hash_table_insert (cache, key, res);
2780 mono_marshal_set_wrapper_info (res, info);
2781 mono_marshal_unlock ();
2785 mono_marshal_unlock ();
2786 mono_free_method (newm);
2794 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2795 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2798 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2802 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2805 int wrapper_type = wrapper->wrapper_type;
2808 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2811 info = mono_marshal_get_wrapper_info (wrapper);
2813 switch (wrapper_type) {
2814 case MONO_WRAPPER_REMOTING_INVOKE:
2815 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2816 case MONO_WRAPPER_XDOMAIN_INVOKE:
2817 m = info->d.remoting.method;
2818 if (wrapper->is_inflated) {
2822 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2823 * contains an uninflated method.
2825 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2826 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2830 case MONO_WRAPPER_SYNCHRONIZED:
2831 m = info->d.synchronized.method;
2832 if (wrapper->is_inflated) {
2835 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2836 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2840 case MONO_WRAPPER_UNBOX:
2841 return info->d.unbox.method;
2842 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2843 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2844 return info->d.managed_to_native.method;
2847 case MONO_WRAPPER_RUNTIME_INVOKE:
2848 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2849 return info->d.runtime_invoke.method;
2852 case MONO_WRAPPER_DELEGATE_INVOKE:
2854 return info->d.delegate_invoke.method;
2863 * mono_marshal_get_wrapper_info:
2865 * Retrieve the WrapperInfo structure associated with WRAPPER.
2868 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2870 g_assert (wrapper->wrapper_type);
2872 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2876 * mono_marshal_set_wrapper_info:
2878 * Set the WrapperInfo structure associated with the wrapper
2879 * method METHOD to INFO.
2882 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2886 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2889 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2894 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2898 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2899 info->subtype = subtype;
2904 * get_wrapper_target_class:
2906 * Return the class where a wrapper method should be placed.
2909 get_wrapper_target_class (MonoImage *image)
2916 * - can't put all wrappers into an mscorlib class, because they reference
2917 * metadata (signature) so they should be put into the same image as the
2918 * method they wrap, so they are unloaded together.
2919 * - putting them into a class with a type initalizer could cause the
2920 * initializer to be executed which can be a problem if the wrappers are
2922 * - putting them into an inflated class can cause problems if the the
2923 * class is deleted because it references an image which is unloaded.
2924 * To avoid these problems, we put the wrappers into the <Module> class of
2927 if (image_is_dynamic (image)) {
2928 klass = ((MonoDynamicImage*)image)->wrappers_type;
2930 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2931 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2939 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2940 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2944 * check_generic_wrapper_cache:
2946 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2947 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2948 * generic method definition.
2951 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2954 MonoMethod *inst, *def;
2955 MonoGenericContext *ctx;
2957 g_assert (orig_method->is_inflated);
2958 ctx = mono_method_get_context (orig_method);
2961 * Look for the instance
2963 res = mono_marshal_find_in_cache (cache, key);
2968 * Look for the definition
2970 def = mono_marshal_find_in_cache (cache, def_key);
2973 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2974 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2976 mono_memory_barrier ();
2977 mono_marshal_lock ();
2978 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2980 g_hash_table_insert (cache, key, inst);
2983 mono_marshal_unlock ();
2990 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2993 MonoMethod *inst, *res;
2996 * We use the same cache for the generic definition and the instances.
2998 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2999 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3000 mono_memory_barrier ();
3001 mono_marshal_lock ();
3002 res = (MonoMethod *)g_hash_table_lookup (cache, key);
3004 g_hash_table_insert (cache, key, inst);
3007 mono_marshal_unlock ();
3012 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
3016 MonoMethod *inst, *def;
3019 * Look for the instance
3021 res = mono_marshal_find_in_cache (cache, orig_method->klass);
3026 * Look for the definition
3028 def = mono_marshal_find_in_cache (cache, def_method->klass);
3030 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3031 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3034 mono_memory_barrier ();
3035 mono_marshal_lock ();
3036 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3038 g_hash_table_insert (cache, orig_method->klass, inst);
3041 mono_marshal_unlock ();
3048 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
3051 MonoMethod *inst, *res;
3052 WrapperInfo *ginfo, *info;
3055 * We use the same cache for the generic definition and the instances.
3057 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3058 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3060 ginfo = mono_marshal_get_wrapper_info (def);
3062 info = (WrapperInfo *)mono_image_alloc0 (def->klass->image, sizeof (WrapperInfo));
3063 info->subtype = ginfo->subtype;
3064 if (info->subtype == WRAPPER_SUBTYPE_NONE) {
3065 info->d.delegate_invoke.method = mono_class_inflate_generic_method_checked (ginfo->d.delegate_invoke.method, ctx, &error);
3066 mono_error_assert_ok (&error);
3070 mono_memory_barrier ();
3071 mono_marshal_lock ();
3072 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3074 g_hash_table_insert (cache, orig_method->klass, inst);
3077 mono_marshal_unlock ();
3082 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
3084 MonoMethodSignature *sig;
3085 MonoMethodBuilder *mb;
3090 MonoGenericContext *ctx = NULL;
3091 MonoMethod *orig_method = NULL;
3093 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3094 !strcmp (method->name, "BeginInvoke"));
3097 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3099 if (method->is_inflated) {
3100 orig_method = method;
3101 ctx = &((MonoMethodInflated*)method)->context;
3102 method = ((MonoMethodInflated*)method)->declaring;
3105 sig = mono_signature_no_pinvoke (method);
3111 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
3112 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3116 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
3117 (GHashFunc)mono_signature_hash,
3118 (GCompareFunc)mono_metadata_signature_equal);
3119 if ((res = mono_marshal_find_in_cache (cache, sig)))
3123 g_assert (sig->hasthis);
3125 name = mono_signature_to_name (sig, "begin_invoke");
3127 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3129 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3133 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3135 mono_mb_emit_ldarg (mb, 0);
3136 mono_mb_emit_ldloc (mb, params_var);
3137 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3138 mono_mb_emit_byte (mb, CEE_RET);
3143 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3144 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3146 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3153 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
3155 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3158 MonoDomain *domain = mono_domain_get ();
3159 MonoAsyncResult *ares;
3160 MonoMethod *method = NULL;
3161 MonoMethodSignature *sig;
3162 MonoMethodMessage *msg;
3163 MonoObject *res, *exc;
3164 MonoArray *out_args;
3167 g_assert (delegate);
3169 if (!delegate->method_info) {
3170 g_assert (delegate->method);
3171 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
3172 if (!mono_error_ok (&error)) {
3173 mono_error_set_pending_exception (&error);
3176 MONO_OBJECT_SETREF (delegate, method_info, rm);
3179 if (!delegate->method_info || !delegate->method_info->method)
3180 g_assert_not_reached ();
3182 klass = delegate->object.vtable->klass;
3184 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3185 g_assert (method != NULL);
3187 sig = mono_signature_no_pinvoke (method);
3189 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3190 if (mono_error_set_pending_exception (&error))
3193 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3195 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."));
3199 if (ares->async_delegate != (MonoObject*)delegate) {
3200 mono_set_pending_exception (mono_get_exception_invalid_operation (
3201 "The IAsyncResult object provided does not match this delegate."));
3205 #ifndef DISABLE_REMOTING
3206 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3207 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3208 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3209 if (!mono_error_ok (&error)) {
3210 mono_error_set_pending_exception (&error);
3213 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3214 if (mono_error_set_pending_exception (&error))
3216 msg->call_type = CallType_EndInvoke;
3217 MONO_OBJECT_SETREF (msg, async_result, ares);
3218 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3219 if (!mono_error_ok (&error)) {
3220 mono_error_set_pending_exception (&error);
3226 res = mono_threadpool_end_invoke (ares, &out_args, &exc, &error);
3227 if (mono_error_set_pending_exception (&error))
3232 if (((MonoException*)exc)->stack_trace) {
3233 MonoError inner_error;
3234 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3235 if (is_ok (&inner_error)) {
3237 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3239 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3242 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3244 mono_set_pending_exception ((MonoException*)exc);
3247 mono_method_return_message_restore (method, params, out_args, &error);
3248 mono_error_set_pending_exception (&error);
3255 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3257 MonoType *t = mono_type_get_underlying_type (return_type);
3259 if (return_type->byref)
3260 return_type = &mono_defaults.int_class->byval_arg;
3263 case MONO_TYPE_VOID:
3264 g_assert_not_reached ();
3267 case MONO_TYPE_STRING:
3268 case MONO_TYPE_CLASS:
3269 case MONO_TYPE_OBJECT:
3270 case MONO_TYPE_ARRAY:
3271 case MONO_TYPE_SZARRAY:
3275 case MONO_TYPE_BOOLEAN:
3278 case MONO_TYPE_CHAR:
3288 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3289 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3291 case MONO_TYPE_GENERICINST:
3292 if (!mono_type_generic_inst_is_valuetype (t))
3295 case MONO_TYPE_VALUETYPE: {
3296 MonoClass *klass = mono_class_from_mono_type (return_type);
3297 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3298 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3302 case MONO_TYPE_MVAR: {
3303 MonoClass *klass = mono_class_from_mono_type (return_type);
3304 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3308 g_warning ("type 0x%x not handled", return_type->type);
3309 g_assert_not_reached ();
3312 mono_mb_emit_byte (mb, CEE_RET);
3315 #endif /* DISABLE_JIT */
3318 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3320 MonoMethodSignature *sig;
3321 MonoMethodBuilder *mb;
3326 MonoGenericContext *ctx = NULL;
3327 MonoMethod *orig_method = NULL;
3329 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3330 !strcmp (method->name, "EndInvoke"));
3333 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3335 if (method->is_inflated) {
3336 orig_method = method;
3337 ctx = &((MonoMethodInflated*)method)->context;
3338 method = ((MonoMethodInflated*)method)->declaring;
3341 sig = mono_signature_no_pinvoke (method);
3347 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3348 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3352 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3353 (GHashFunc)mono_signature_hash,
3354 (GCompareFunc)mono_metadata_signature_equal);
3355 if ((res = mono_marshal_find_in_cache (cache, sig)))
3359 g_assert (sig->hasthis);
3361 name = mono_signature_to_name (sig, "end_invoke");
3363 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3365 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3369 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3371 mono_mb_emit_ldarg (mb, 0);
3372 mono_mb_emit_ldloc (mb, params_var);
3373 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3375 if (sig->ret->type == MONO_TYPE_VOID) {
3376 mono_mb_emit_byte (mb, CEE_POP);
3377 mono_mb_emit_byte (mb, CEE_RET);
3379 mono_mb_emit_restore_result (mb, sig->ret);
3384 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3385 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3387 res = mono_mb_create_and_cache (cache, sig,
3388 mb, sig, sig->param_count + 16);
3397 MonoMethodSignature *sig;
3399 } SignaturePointerPair;
3402 signature_pointer_pair_hash (gconstpointer data)
3404 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3406 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3410 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3412 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3413 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3417 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3419 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3421 return pair->pointer == user_data;
3425 free_signature_pointer_pair (SignaturePointerPair *pair)
3431 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3433 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3435 MonoMethodBuilder *mb;
3438 gpointer cache_key = NULL;
3439 SignaturePointerPair key = { NULL, NULL };
3440 SignaturePointerPair *new_key;
3441 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3442 int pos0, pos1, pos2;
3444 MonoClass *target_class = NULL;
3445 gboolean closed_over_null = FALSE;
3446 MonoGenericContext *ctx = NULL;
3447 MonoGenericContainer *container = NULL;
3448 MonoMethod *orig_method = method;
3450 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3454 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3455 !strcmp (method->name, "Invoke"));
3457 invoke_sig = sig = mono_signature_no_pinvoke (method);
3460 * If the delegate target is null, and the target method is not static, a virtual
3461 * call is made to that method with the first delegate argument as this. This is
3462 * a non-documented .NET feature.
3465 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3466 if (target_method->is_inflated) {
3468 MonoType *target_type;
3470 g_assert (method->signature->hasthis);
3471 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3472 mono_method_get_context (method), &error);
3473 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3474 target_class = mono_class_from_mono_type (target_type);
3476 target_class = target_method->klass;
3479 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3482 if (static_method_with_first_arg_bound) {
3483 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3484 g_assert (!callvirt);
3485 invoke_sig = mono_method_signature (target_method);
3489 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3491 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3492 ctx = &((MonoMethodInflated*)method)->context;
3493 method = ((MonoMethodInflated*)method)->declaring;
3495 container = mono_method_get_generic_container (method);
3497 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
3498 g_assert (container);
3500 invoke_sig = sig = mono_signature_no_pinvoke (method);
3507 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3508 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3511 cache_key = method->klass;
3512 } else if (static_method_with_first_arg_bound) {
3513 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3514 (GHashFunc)mono_signature_hash,
3515 (GCompareFunc)mono_metadata_signature_equal);
3517 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3519 res = mono_marshal_find_in_cache (cache, invoke_sig);
3522 cache_key = invoke_sig;
3523 } else if (callvirt) {
3524 GHashTable **cache_ptr;
3526 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3528 /* We need to cache the signature+method pair */
3529 mono_marshal_lock ();
3531 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3533 key.sig = invoke_sig;
3534 key.pointer = target_method;
3535 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3536 mono_marshal_unlock ();
3540 // Inflated methods should not be in this cache because it's not stored on the imageset.
3541 g_assert (!method->is_inflated);
3542 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3543 (GHashFunc)mono_signature_hash,
3544 (GCompareFunc)mono_metadata_signature_equal);
3545 res = mono_marshal_find_in_cache (cache, sig);
3551 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3552 static_sig->hasthis = 0;
3553 if (!static_method_with_first_arg_bound)
3554 invoke_sig = static_sig;
3556 if (static_method_with_first_arg_bound)
3557 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3558 else if (closed_over_null)
3559 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3561 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3563 name = mono_signature_to_name (invoke_sig, "invoke");
3565 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3567 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3571 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3573 /* allocate local 0 (object) */
3574 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3575 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3576 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3577 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3578 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3581 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3583 g_assert (sig->hasthis);
3586 * {type: sig->ret} res;
3587 * if (delegates == null) {
3588 * return this.<target> ( args .. );
3590 * int i = 0, len = this.delegates.Length;
3592 * res = this.delegates [i].Invoke ( args .. );
3593 * } while (++i < len);
3598 /* this wrapper can be used in unmanaged-managed transitions */
3599 emit_thread_interrupt_checkpoint (mb);
3601 /* delegates = this.delegates */
3602 mono_mb_emit_ldarg (mb, 0);
3603 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3604 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3605 mono_mb_emit_stloc (mb, local_delegates);
3607 /* if (delegates == null) */
3608 mono_mb_emit_ldloc (mb, local_delegates);
3609 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3611 /* return target.<target_method|method_ptr> ( args .. ); */
3613 /* target = d.target; */
3614 mono_mb_emit_ldarg (mb, 0);
3615 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3616 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3617 mono_mb_emit_stloc (mb, local_target);
3619 /*static methods with bound first arg can have null target and still be bound*/
3620 if (!static_method_with_first_arg_bound) {
3621 /* if target != null */
3622 mono_mb_emit_ldloc (mb, local_target);
3623 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3625 /* then call this->method_ptr nonstatic */
3628 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3630 mono_mb_emit_ldloc (mb, local_target);
3631 for (i = 0; i < sig->param_count; ++i)
3632 mono_mb_emit_ldarg (mb, i + 1);
3633 mono_mb_emit_ldarg (mb, 0);
3634 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3635 mono_mb_emit_byte (mb, CEE_LDIND_I);
3636 mono_mb_emit_ldarg (mb, 0);
3637 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3638 mono_mb_emit_byte (mb, CEE_LDIND_I);
3639 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3640 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3641 mono_mb_emit_byte (mb, CEE_RET);
3644 /* else [target == null] call this->method_ptr static */
3645 mono_mb_patch_branch (mb, pos0);
3649 if (!closed_over_null) {
3650 if (target_class->valuetype) {
3651 mono_mb_emit_ldarg (mb, 1);
3652 for (i = 1; i < sig->param_count; ++i)
3653 mono_mb_emit_ldarg (mb, i + 1);
3654 mono_mb_emit_op (mb, CEE_CALL, target_method);
3656 mono_mb_emit_ldarg (mb, 1);
3657 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3658 for (i = 1; i < sig->param_count; ++i)
3659 mono_mb_emit_ldarg (mb, i + 1);
3660 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3663 mono_mb_emit_byte (mb, CEE_LDNULL);
3664 for (i = 0; i < sig->param_count; ++i)
3665 mono_mb_emit_ldarg (mb, i + 1);
3666 mono_mb_emit_op (mb, CEE_CALL, target_method);
3669 if (static_method_with_first_arg_bound) {
3670 mono_mb_emit_ldloc (mb, local_target);
3671 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3672 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3674 for (i = 0; i < sig->param_count; ++i)
3675 mono_mb_emit_ldarg (mb, i + 1);
3676 mono_mb_emit_ldarg (mb, 0);
3677 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3678 mono_mb_emit_byte (mb, CEE_LDIND_I);
3679 mono_mb_emit_ldarg (mb, 0);
3680 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3681 mono_mb_emit_byte (mb, CEE_LDIND_I);
3682 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3683 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3686 mono_mb_emit_byte (mb, CEE_RET);
3688 /* else [delegates != null] */
3689 mono_mb_patch_branch (mb, pos2);
3691 /* len = delegates.Length; */
3692 mono_mb_emit_ldloc (mb, local_delegates);
3693 mono_mb_emit_byte (mb, CEE_LDLEN);
3694 mono_mb_emit_byte (mb, CEE_CONV_I4);
3695 mono_mb_emit_stloc (mb, local_len);
3698 mono_mb_emit_icon (mb, 0);
3699 mono_mb_emit_stloc (mb, local_i);
3701 pos1 = mono_mb_get_label (mb);
3703 /* d = delegates [i]; */
3704 mono_mb_emit_ldloc (mb, local_delegates);
3705 mono_mb_emit_ldloc (mb, local_i);
3706 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3707 mono_mb_emit_stloc (mb, local_d);
3709 /* res = d.Invoke ( args .. ); */
3710 mono_mb_emit_ldloc (mb, local_d);
3711 for (i = 0; i < sig->param_count; i++)
3712 mono_mb_emit_ldarg (mb, i + 1);
3714 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3717 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3718 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3721 mono_mb_emit_stloc (mb, local_res);
3724 mono_mb_emit_add_to_local (mb, local_i, 1);
3727 mono_mb_emit_ldloc (mb, local_i);
3728 mono_mb_emit_ldloc (mb, local_len);
3729 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3733 mono_mb_emit_ldloc (mb, local_res);
3734 mono_mb_emit_byte (mb, CEE_RET);
3736 mb->skip_visibility = 1;
3737 #endif /* DISABLE_JIT */
3739 info = mono_wrapper_info_create (mb, subtype);
3740 info->d.delegate_invoke.method = method;
3745 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3746 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3747 } else if (callvirt) {
3748 new_key = g_new0 (SignaturePointerPair, 1);
3751 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3755 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3759 /* mono_method_print_code (res); */
3765 * the returned method invokes all methods in a multicast delegate.
3768 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3770 gboolean callvirt = FALSE;
3771 gboolean static_method_with_first_arg_bound = FALSE;
3772 MonoMethod *target_method = NULL;
3773 MonoMethodSignature *sig;
3775 sig = mono_signature_no_pinvoke (method);
3777 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3779 target_method = del->method;
3782 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3783 static_method_with_first_arg_bound = TRUE;
3784 target_method = del->method;
3787 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3791 MonoMethodSignature *ctor_sig;
3792 MonoMethodSignature *sig;
3795 /* protected by the marshal lock, contains CtorSigPair pointers */
3796 static GSList *strsig_list = NULL;
3798 static MonoMethodSignature *
3799 lookup_string_ctor_signature (MonoMethodSignature *sig)
3801 MonoMethodSignature *callsig;
3805 mono_marshal_lock ();
3807 for (item = strsig_list; item; item = item->next) {
3808 cs = (CtorSigPair *)item->data;
3809 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3810 * because it is lock-free.
3812 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3817 mono_marshal_unlock ();
3821 static MonoMethodSignature *
3822 add_string_ctor_signature (MonoMethod *method)
3824 MonoMethodSignature *callsig;
3827 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3828 callsig->ret = &mono_defaults.string_class->byval_arg;
3829 cs = g_new (CtorSigPair, 1);
3831 cs->ctor_sig = mono_method_signature (method);
3833 mono_marshal_lock ();
3834 strsig_list = g_slist_prepend (strsig_list, cs);
3835 mono_marshal_unlock ();
3840 * mono_marshal_get_string_ctor_signature:
3842 * Return the modified signature used by string ctors (they return the newly created
3845 MonoMethodSignature*
3846 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3848 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3850 sig = add_string_ctor_signature (method);
3856 get_runtime_invoke_type (MonoType *t, gboolean ret)
3859 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3861 /* Can't share this with 'I' as that needs another indirection */
3862 return &mono_defaults.int_class->this_arg;
3865 if (MONO_TYPE_IS_REFERENCE (t))
3866 return &mono_defaults.object_class->byval_arg;
3869 /* The result needs to be boxed */
3874 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3877 return &mono_defaults.sbyte_class->byval_arg;
3879 return &mono_defaults.int16_class->byval_arg;
3881 return &mono_defaults.int32_class->byval_arg;
3884 return &mono_defaults.int64_class->byval_arg;
3885 case MONO_TYPE_BOOLEAN:
3886 return &mono_defaults.byte_class->byval_arg;
3887 case MONO_TYPE_CHAR:
3888 return &mono_defaults.uint16_class->byval_arg;
3890 return &mono_defaults.int_class->byval_arg;
3891 case MONO_TYPE_VALUETYPE:
3892 if (t->data.klass->enumtype) {
3893 t = mono_class_enum_basetype (t->data.klass);
3903 * mono_marshal_get_runtime_invoke_sig:
3905 * Return a common signature used for sharing runtime invoke wrappers.
3907 static MonoMethodSignature*
3908 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3910 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3913 res->generic_param_count = 0;
3914 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3915 for (i = 0; i < res->param_count; ++i)
3916 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3922 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3924 /* Can't share wrappers which return a vtype since it needs to be boxed */
3925 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))
3928 return mono_metadata_signature_equal (sig1, sig2);
3936 * Emit the call to the wrapper method from a runtime invoke wrapper.
3939 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3940 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3942 gboolean virtual_, gboolean need_direct_wrapper)
3944 static MonoString *string_dummy = NULL;
3946 int *tmp_nullable_locals;
3947 gboolean void_ret = FALSE;
3948 gboolean string_ctor = method && method->string_ctor;
3950 /* to make it work with our special string constructors */
3951 if (!string_dummy) {
3952 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3953 string_dummy = mono_string_new_wrapper ("dummy");
3957 g_assert (sig->hasthis);
3958 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3963 if (mono_gc_is_moving ()) {
3964 mono_mb_emit_ptr (mb, &string_dummy);
3965 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3967 mono_mb_emit_ptr (mb, string_dummy);
3970 mono_mb_emit_ldarg (mb, 0);
3974 tmp_nullable_locals = g_new0 (int, sig->param_count);
3976 for (i = 0; i < sig->param_count; i++) {
3977 MonoType *t = sig->params [i];
3980 mono_mb_emit_ldarg (mb, 1);
3982 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3983 mono_mb_emit_byte (mb, CEE_ADD);
3987 mono_mb_emit_byte (mb, CEE_LDIND_I);
3988 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3989 * So to make this work we unbox it to a local variablee and push a reference to that.
3991 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3992 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3994 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3995 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3996 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4001 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4002 type = sig->params [i]->type;
4006 case MONO_TYPE_BOOLEAN:
4010 case MONO_TYPE_CHAR:
4019 mono_mb_emit_byte (mb, CEE_LDIND_I);
4020 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4022 case MONO_TYPE_STRING:
4023 case MONO_TYPE_CLASS:
4024 case MONO_TYPE_ARRAY:
4026 case MONO_TYPE_SZARRAY:
4027 case MONO_TYPE_OBJECT:
4028 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4030 case MONO_TYPE_GENERICINST:
4031 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4032 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4037 case MONO_TYPE_VALUETYPE:
4038 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4039 type = mono_class_enum_basetype (t->data.klass)->type;
4042 mono_mb_emit_byte (mb, CEE_LDIND_I);
4043 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4044 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4045 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4046 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4048 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4052 g_assert_not_reached ();
4057 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4058 } else if (need_direct_wrapper) {
4059 mono_mb_emit_op (mb, CEE_CALL, method);
4061 mono_mb_emit_ldarg (mb, 3);
4062 mono_mb_emit_calli (mb, callsig);
4065 if (sig->ret->byref) {
4067 g_assert_not_reached ();
4070 switch (sig->ret->type) {
4071 case MONO_TYPE_VOID:
4075 case MONO_TYPE_BOOLEAN:
4076 case MONO_TYPE_CHAR:
4089 case MONO_TYPE_VALUETYPE:
4090 case MONO_TYPE_TYPEDBYREF:
4091 case MONO_TYPE_GENERICINST:
4092 /* box value types */
4093 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4095 case MONO_TYPE_STRING:
4096 case MONO_TYPE_CLASS:
4097 case MONO_TYPE_ARRAY:
4098 case MONO_TYPE_SZARRAY:
4099 case MONO_TYPE_OBJECT:
4103 /* The result is an IntPtr */
4104 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4107 g_assert_not_reached ();
4111 mono_mb_emit_stloc (mb, loc_res);
4113 /* Convert back nullable-byref arguments */
4114 for (i = 0; i < sig->param_count; i++) {
4115 MonoType *t = sig->params [i];
4118 * Box the result and put it back into the array, the caller will have
4119 * to obtain it from there.
4121 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4122 mono_mb_emit_ldarg (mb, 1);
4123 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4124 mono_mb_emit_byte (mb, CEE_ADD);
4126 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4127 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4129 mono_mb_emit_byte (mb, CEE_STIND_REF);
4133 g_free (tmp_nullable_locals);
4137 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
4138 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4139 gboolean virtual_, gboolean need_direct_wrapper)
4142 MonoExceptionClause *clause;
4143 int loc_res, loc_exc;
4145 /* The wrapper looks like this:
4151 * } catch (Exception e) {
4159 /* allocate local 0 (object) tmp */
4160 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4161 /* allocate local 1 (object) exc */
4162 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4164 /* *exc is assumed to be initialized to NULL by the caller */
4166 mono_mb_emit_byte (mb, CEE_LDARG_2);
4167 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4172 labels [1] = mono_mb_get_label (mb);
4173 emit_thread_force_interrupt_checkpoint (mb);
4174 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4176 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4178 /* Add a try clause around the call */
4179 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
4180 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4181 clause->data.catch_class = mono_defaults.exception_class;
4182 clause->try_offset = labels [1];
4183 clause->try_len = mono_mb_get_label (mb) - labels [1];
4185 clause->handler_offset = mono_mb_get_label (mb);
4188 mono_mb_emit_stloc (mb, loc_exc);
4189 mono_mb_emit_byte (mb, CEE_LDARG_2);
4190 mono_mb_emit_ldloc (mb, loc_exc);
4191 mono_mb_emit_byte (mb, CEE_STIND_REF);
4193 mono_mb_emit_branch (mb, CEE_LEAVE);
4195 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4197 mono_mb_set_clauses (mb, 1, clause);
4199 mono_mb_patch_branch (mb, labels [2]);
4200 mono_mb_emit_ldloc (mb, loc_res);
4201 mono_mb_emit_byte (mb, CEE_RET);
4206 mono_mb_patch_branch (mb, labels [0]);
4207 emit_thread_force_interrupt_checkpoint (mb);
4208 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4210 mono_mb_emit_ldloc (mb, 0);
4211 mono_mb_emit_byte (mb, CEE_RET);
4216 * generates IL code for the runtime invoke function
4217 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4219 * we also catch exceptions if exc != null
4220 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4221 * it means that the compiled code for METHOD does not have to be looked up
4222 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4223 * its METHOD argument.
4226 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4228 MonoMethodSignature *sig, *csig, *callsig;
4229 MonoMethodBuilder *mb;
4230 GHashTable *cache = NULL;
4231 MonoClass *target_klass;
4232 MonoMethod *res = NULL;
4233 static MonoMethodSignature *cctor_signature = NULL;
4234 static MonoMethodSignature *finalize_signature = NULL;
4236 const char *param_names [16];
4237 gboolean need_direct_wrapper = FALSE;
4242 if (!cctor_signature) {
4243 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4244 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4246 if (!finalize_signature) {
4247 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4248 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4249 finalize_signature->hasthis = 1;
4253 need_direct_wrapper = TRUE;
4256 * Use a separate cache indexed by methods to speed things up and to avoid the
4257 * boundless mempool growth caused by the signature_dup stuff below.
4260 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4262 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4264 res = mono_marshal_find_in_cache (cache, method);
4268 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4269 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4271 * Array Get/Set/Address methods. The JIT implements them using inline code
4272 * so we need to create an invoke wrapper which calls the method directly.
4274 need_direct_wrapper = TRUE;
4277 if (method->string_ctor) {
4278 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4280 callsig = add_string_ctor_signature (method);
4281 /* Can't share this as we push a string as this */
4282 need_direct_wrapper = TRUE;
4284 if (method_is_dynamic (method))
4285 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4287 callsig = mono_method_signature (method);
4290 sig = mono_method_signature (method);
4292 target_klass = get_wrapper_target_class (method->klass->image);
4294 /* Try to share wrappers for non-corlib methods with simple signatures */
4295 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4296 callsig = cctor_signature;
4297 target_klass = mono_defaults.object_class;
4298 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4299 callsig = finalize_signature;
4300 target_klass = mono_defaults.object_class;
4303 if (need_direct_wrapper) {
4304 /* Already searched at the start */
4306 MonoMethodSignature *tmp_sig;
4308 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4309 GHashTable **cache_table = NULL;
4311 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4312 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4314 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4316 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4317 (GCompareFunc)runtime_invoke_signature_equal);
4319 /* from mono_marshal_find_in_cache */
4320 mono_marshal_lock ();
4321 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4322 mono_marshal_unlock ();
4329 /* Make a copy of the signature from the image mempool */
4331 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4335 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4337 csig->ret = &mono_defaults.object_class->byval_arg;
4338 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4339 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4341 csig->params [0] = &mono_defaults.object_class->byval_arg;
4342 csig->params [1] = &mono_defaults.int_class->byval_arg;
4343 csig->params [2] = &mono_defaults.int_class->byval_arg;
4344 csig->params [3] = &mono_defaults.int_class->byval_arg;
4347 /* This is called from runtime code so it has to be cdecl */
4348 csig->call_convention = MONO_CALL_C;
4351 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4352 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4356 param_names [0] = "this";
4357 param_names [1] = "params";
4358 param_names [2] = "exc";
4359 param_names [3] = "method";
4360 mono_mb_set_param_names (mb, param_names);
4362 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4365 if (need_direct_wrapper) {
4367 mb->skip_visibility = 1;
4369 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4370 info->d.runtime_invoke.method = method;
4371 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4373 /* taken from mono_mb_create_and_cache */
4374 mono_marshal_lock ();
4375 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4376 mono_marshal_unlock ();
4378 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4379 info->d.runtime_invoke.sig = callsig;
4381 /* Somebody may have created it before us */
4384 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4386 mono_marshal_lock ();
4387 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4389 GHashTable *direct_cache;
4391 g_hash_table_insert (cache, callsig, res);
4392 /* Can't insert it into wrapper_hash since the key is a signature */
4393 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4395 g_hash_table_insert (direct_cache, method, res);
4397 mono_free_method (newm);
4399 mono_marshal_unlock ();
4402 /* end mono_mb_create_and_cache */
4411 * mono_marshal_get_runtime_invoke_dynamic:
4413 * Return a method which can be used to invoke managed methods from native code
4415 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4416 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4417 * ARGS should point to an architecture specific structure containing
4418 * the arguments and space for the return value.
4419 * The other arguments are the same as for runtime_invoke (), except that
4420 * ARGS should contain the this argument too.
4421 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4422 * is only one copy of it, which is useful in full-aot.
4425 mono_marshal_get_runtime_invoke_dynamic (void)
4427 static MonoMethod *method;
4428 MonoMethodSignature *csig;
4429 MonoExceptionClause *clause;
4430 MonoMethodBuilder *mb;
4438 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4440 csig->ret = &mono_defaults.void_class->byval_arg;
4441 csig->params [0] = &mono_defaults.int_class->byval_arg;
4442 csig->params [1] = &mono_defaults.int_class->byval_arg;
4443 csig->params [2] = &mono_defaults.int_class->byval_arg;
4444 csig->params [3] = &mono_defaults.int_class->byval_arg;
4446 name = g_strdup ("runtime_invoke_dynamic");
4447 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4451 /* allocate local 0 (object) tmp */
4452 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4453 /* allocate local 1 (object) exc */
4454 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4456 /* cond set *exc to null */
4457 mono_mb_emit_byte (mb, CEE_LDARG_1);
4458 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4459 mono_mb_emit_byte (mb, 3);
4460 mono_mb_emit_byte (mb, CEE_LDARG_1);
4461 mono_mb_emit_byte (mb, CEE_LDNULL);
4462 mono_mb_emit_byte (mb, CEE_STIND_REF);
4464 emit_thread_force_interrupt_checkpoint (mb);
4466 mono_mb_emit_byte (mb, CEE_LDARG_0);
4467 mono_mb_emit_byte (mb, CEE_LDARG_2);
4468 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4469 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4471 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4473 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4474 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4475 clause->try_len = mono_mb_get_label (mb);
4478 clause->data.filter_offset = mono_mb_get_label (mb);
4480 mono_mb_emit_byte (mb, CEE_POP);
4481 mono_mb_emit_byte (mb, CEE_LDARG_1);
4482 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4483 mono_mb_emit_byte (mb, CEE_PREFIX1);
4484 mono_mb_emit_byte (mb, CEE_CGT_UN);
4485 mono_mb_emit_byte (mb, CEE_PREFIX1);
4486 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4488 clause->handler_offset = mono_mb_get_label (mb);
4491 /* store exception */
4492 mono_mb_emit_stloc (mb, 1);
4494 mono_mb_emit_byte (mb, CEE_LDARG_1);
4495 mono_mb_emit_ldloc (mb, 1);
4496 mono_mb_emit_byte (mb, CEE_STIND_REF);
4498 mono_mb_emit_byte (mb, CEE_LDNULL);
4499 mono_mb_emit_stloc (mb, 0);
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);
7495 /* How the arguments of an icall should be wrapped */
7497 /* Don't wrap at all, pass the argument as is */
7498 ICALL_HANDLES_WRAP_NONE,
7499 /* Wrap the argument in an object handle, pass the handle to the icall */
7500 ICALL_HANDLES_WRAP_OBJ,
7501 /* Wrap the argument in an object handle, pass the handle to the icall,
7502 write the value out from the handle when the icall returns */
7503 ICALL_HANDLES_WRAP_OBJ_INOUT,
7504 /* Wrap the argument (a valuetype reference) in a handle to pin its enclosing object,
7505 but pass the raw reference to the icall */
7506 ICALL_HANDLES_WRAP_VALUETYPE_REF,
7510 IcallHandlesWrap wrap;
7511 /* if wrap is NONE or OBJ or VALUETYPE_REF, this is not meaningful.
7512 if wrap is OBJ_INOUT it's the local var that holds the MonoObjectHandle.
7515 } IcallHandlesLocal;
7518 * Describes how to wrap the given parameter.
7521 static IcallHandlesWrap
7522 signature_param_uses_handles (MonoMethodSignature *sig, int param)
7524 if (MONO_TYPE_IS_REFERENCE (sig->params [param])) {
7525 return mono_signature_param_is_out (sig, param) ? ICALL_HANDLES_WRAP_OBJ_INOUT : ICALL_HANDLES_WRAP_OBJ;
7526 } else if (mono_type_is_byref (sig->params [param]))
7527 return ICALL_HANDLES_WRAP_VALUETYPE_REF;
7529 return ICALL_HANDLES_WRAP_NONE;
7535 * mono_marshal_emit_native_wrapper:
7536 * \param image the image to use for looking up custom marshallers
7537 * \param sig The signature of the native function
7538 * \param piinfo Marshalling information
7539 * \param mspecs Marshalling information
7540 * \param aot whenever the created method will be compiled by the AOT compiler
7541 * \param method if non-NULL, the pinvoke method to call
7542 * \param check_exceptions Whenever to check for pending exceptions after the native call
7543 * \param func_param the function to call is passed as a boxed IntPtr as the first parameter
7545 * generates IL code for the pinvoke wrapper, the generated code calls \p func .
7548 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)
7550 EmitMarshalContext m;
7551 MonoMethodSignature *csig;
7553 int i, argnum, *tmp_locals;
7554 int type, param_shift = 0;
7555 int coop_gc_stack_dummy, coop_gc_var;
7557 memset (&m, 0, sizeof (m));
7562 /* we copy the signature, so that we can set pinvoke to 0 */
7564 /* The function address is passed as the first argument */
7565 g_assert (!sig->hasthis);
7568 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7576 /* we allocate local for use with emit_struct_conv() */
7577 /* allocate local 0 (pointer) src_ptr */
7578 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7579 /* allocate local 1 (pointer) dst_ptr */
7580 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7581 /* allocate local 2 (boolean) delete_old */
7582 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7584 /* delete_old = FALSE */
7585 mono_mb_emit_icon (mb, 0);
7586 mono_mb_emit_stloc (mb, 2);
7588 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7589 /* allocate local 3 to store the return value */
7590 mono_mb_add_local (mb, sig->ret);
7593 if (mono_threads_is_coop_enabled ()) {
7594 /* local 4, dummy local used to get a stack address for suspend funcs */
7595 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7596 /* local 5, the local to be used when calling the suspend funcs */
7597 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7601 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7603 * ret = method (...);
7605 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7612 if (MONO_TYPE_ISSTRUCT (sig->ret))
7613 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7615 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7616 /* Return type custom marshaling */
7618 * Since we can't determine the return type of the unmanaged function,
7619 * we assume it returns a pointer, and pass that pointer to
7620 * MarshalNativeToManaged.
7622 csig->ret = &mono_defaults.int_class->byval_arg;
7625 /* we first do all conversions */
7626 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7627 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7629 for (i = 0; i < sig->param_count; i ++) {
7630 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7633 // In coop mode need to register blocking state during native call
7634 if (mono_threads_is_coop_enabled ()) {
7635 // Perform an extra, early lookup of the function address, so any exceptions
7636 // potentially resulting from the lookup occur before entering blocking mode.
7637 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7638 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7639 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7640 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7643 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7644 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7645 mono_mb_emit_stloc (mb, coop_gc_var);
7648 /* push all arguments */
7651 mono_mb_emit_byte (mb, CEE_LDARG_0);
7653 for (i = 0; i < sig->param_count; i++) {
7654 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7657 /* call the native method */
7659 mono_mb_emit_byte (mb, CEE_LDARG_0);
7660 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7661 mono_mb_emit_byte (mb, CEE_LDIND_I);
7662 mono_mb_emit_calli (mb, csig);
7663 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7665 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7667 g_assert_not_reached ();
7671 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7672 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7673 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7674 mono_mb_emit_calli (mb, csig);
7676 mono_mb_emit_native_call (mb, csig, func);
7680 /* Set LastError if needed */
7681 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7684 static MonoMethodSignature *get_last_error_sig = NULL;
7685 if (!get_last_error_sig) {
7686 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7687 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7688 get_last_error_sig->pinvoke = 1;
7692 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7693 * clobber its value.
7695 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7696 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7698 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7699 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7700 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7703 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7707 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7708 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7709 mono_class_init (klass);
7710 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
7711 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7712 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7713 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7714 mono_mb_emit_stloc (mb, m.vtaddr_var);
7718 /* Unblock before converting the result, since that can involve calls into the runtime */
7719 if (mono_threads_is_coop_enabled ()) {
7720 mono_mb_emit_ldloc (mb, coop_gc_var);
7721 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7722 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7725 /* convert the result */
7726 if (!sig->ret->byref) {
7727 MonoMarshalSpec *spec = mspecs [0];
7728 type = sig->ret->type;
7730 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7731 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7735 case MONO_TYPE_VOID:
7737 case MONO_TYPE_VALUETYPE:
7738 klass = sig->ret->data.klass;
7739 if (klass->enumtype) {
7740 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7743 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7757 case MONO_TYPE_FNPTR:
7758 case MONO_TYPE_STRING:
7759 case MONO_TYPE_CLASS:
7760 case MONO_TYPE_OBJECT:
7761 case MONO_TYPE_BOOLEAN:
7762 case MONO_TYPE_ARRAY:
7763 case MONO_TYPE_SZARRAY:
7764 case MONO_TYPE_CHAR:
7766 case MONO_TYPE_GENERICINST:
7767 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7769 case MONO_TYPE_TYPEDBYREF:
7771 g_warning ("return type 0x%02x unknown", sig->ret->type);
7772 g_assert_not_reached ();
7776 mono_mb_emit_stloc (mb, 3);
7780 * Need to call this after converting the result since MONO_VTADDR needs
7781 * to be adjacent to the call instruction.
7783 if (check_exceptions)
7784 emit_thread_interrupt_checkpoint (mb);
7786 /* we need to convert byref arguments back and free string arrays */
7787 for (i = 0; i < sig->param_count; i++) {
7788 MonoType *t = sig->params [i];
7789 MonoMarshalSpec *spec = mspecs [i + 1];
7791 argnum = i + param_shift;
7793 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7794 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7799 case MONO_TYPE_STRING:
7800 case MONO_TYPE_VALUETYPE:
7801 case MONO_TYPE_CLASS:
7802 case MONO_TYPE_OBJECT:
7803 case MONO_TYPE_SZARRAY:
7804 case MONO_TYPE_BOOLEAN:
7805 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7812 if (!MONO_TYPE_IS_VOID(sig->ret))
7813 mono_mb_emit_ldloc (mb, 3);
7815 mono_mb_emit_byte (mb, CEE_RET);
7817 #endif /* DISABLE_JIT */
7820 * mono_marshal_get_native_wrapper:
7821 * \param method The MonoMethod to wrap.
7822 * \param check_exceptions Whenever to check for pending exceptions
7824 * generates IL code for the pinvoke wrapper (the generated method
7825 * calls the unmanaged code in piinfo->addr)
7828 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7830 MonoMethodSignature *sig, *csig;
7831 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7832 MonoMethodBuilder *mb;
7833 MonoMarshalSpec **mspecs;
7836 gboolean pinvoke = FALSE;
7839 const char *exc_class = "MissingMethodException";
7840 const char *exc_arg = NULL;
7843 g_assert (method != NULL);
7844 g_assert (mono_method_signature (method)->pinvoke);
7846 GHashTable **cache_ptr;
7849 if (check_exceptions)
7850 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7852 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7854 if (check_exceptions)
7855 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7857 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7860 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7862 if ((res = mono_marshal_find_in_cache (cache, method)))
7865 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7866 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7870 return mono_cominterop_get_native_wrapper (method);
7872 g_assert_not_reached ();
7876 sig = mono_method_signature (method);
7878 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7879 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7882 if (!piinfo->addr) {
7884 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7885 exc_arg = "Method contains unsupported native code";
7887 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7889 piinfo->addr = mono_lookup_internal_call (method);
7893 /* hack - redirect certain string constructors to CreateString */
7894 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7895 g_assert (!pinvoke);
7896 g_assert (method->string_ctor);
7897 g_assert (sig->hasthis);
7899 /* CreateString returns a value */
7900 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7901 csig->ret = &mono_defaults.string_class->byval_arg;
7905 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7906 if (!strcmp ("CreateString", res->name) &&
7907 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7910 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7911 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7913 /* create a wrapper to preserve .ctor in stack trace */
7914 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7917 mono_mb_emit_byte (mb, CEE_LDARG_0);
7918 for (i = 1; i <= csig->param_count; i++)
7919 mono_mb_emit_ldarg (mb, i);
7920 mono_mb_emit_managed_call (mb, res, NULL);
7921 mono_mb_emit_byte (mb, CEE_RET);
7924 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7925 info->d.string_ctor.method = method;
7927 /* use native_wrapper_cache because internal calls are looked up there */
7928 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7929 csig->param_count + 1, info, NULL);
7936 /* exception will be thrown */
7937 piinfo->addr = NULL;
7938 g_warning ("cannot find CreateString for .ctor");
7941 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7943 mb->method->save_lmf = 1;
7946 * In AOT mode and embedding scenarios, it is possible that the icall is not
7947 * registered in the runtime doing the AOT compilation.
7949 if (!piinfo->addr && !aot) {
7951 mono_mb_emit_exception (mb, exc_class, exc_arg);
7953 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7954 info->d.managed_to_native.method = method;
7956 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7958 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7959 csig->param_count + 16, info, NULL);
7965 /* internal calls: we simply push all arguments and call the method (no conversions) */
7966 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7968 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7970 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7972 //printf ("%s\n", mono_method_full_name (method, 1));
7974 /* hack - string constructors returns a value */
7975 if (method->string_ctor)
7976 csig->ret = &mono_defaults.string_class->byval_arg;
7980 MonoClass *handle_stack_mark_class;
7981 MonoClass *error_class;
7982 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
7983 MonoMethodSignature *call_sig = csig;
7984 gboolean uses_handles = FALSE;
7985 gboolean save_handles_to_locals = FALSE;
7986 IcallHandlesLocal *handles_locals = NULL;
7987 (void) mono_lookup_internal_call_full (method, &uses_handles);
7990 /* If it uses handles and MonoError, it had better check exceptions */
7991 g_assert (!uses_handles || check_exceptions);
7994 MonoMethodSignature *ret;
7996 /* Add a MonoError argument and figure out which args need to be wrapped in handles */
7997 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
7998 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
8000 ret->param_count = csig->param_count + 1;
8001 ret->ret = csig->ret;
8003 handles_locals = g_new0 (IcallHandlesLocal, csig->param_count);
8004 for (int i = 0; i < csig->param_count; ++i) {
8005 IcallHandlesWrap w = signature_param_uses_handles (csig, i);
8006 handles_locals [i].wrap = w;
8008 case ICALL_HANDLES_WRAP_OBJ:
8009 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8010 ret->params [i] = mono_class_get_byref_type (mono_class_from_mono_type(csig->params[i]));
8011 if (w == ICALL_HANDLES_WRAP_OBJ_INOUT)
8012 save_handles_to_locals = TRUE;
8014 case ICALL_HANDLES_WRAP_NONE:
8015 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8016 ret->params [i] = csig->params [i];
8019 g_assert_not_reached ();
8022 /* Add MonoError* param */
8023 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
8024 ret->pinvoke = csig->pinvoke;
8030 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
8031 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
8033 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
8034 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
8035 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
8037 if (save_handles_to_locals) {
8038 /* add a local var to hold the handles for each out arg */
8039 for (int i = 0; i < sig->param_count; ++i) {
8040 int j = i + sig->hasthis;
8041 switch (handles_locals[j].wrap) {
8042 case ICALL_HANDLES_WRAP_NONE:
8043 case ICALL_HANDLES_WRAP_OBJ:
8044 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8045 handles_locals [j].handle = -1;
8047 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8048 handles_locals [j].handle = mono_mb_add_local (mb, sig->params [i]);
8051 g_assert_not_reached ();
8061 * Add a null check since public icalls can be called with 'call' which
8062 * does no such check.
8064 mono_mb_emit_byte (mb, CEE_LDARG_0);
8065 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8066 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8067 mono_mb_patch_branch (mb, pos);
8071 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8072 mono_mb_emit_ldloc_addr (mb, error_var);
8073 mono_mb_emit_icall (mb, mono_icall_start);
8074 mono_mb_emit_stloc (mb, thread_info_var);
8077 mono_mb_emit_byte (mb, CEE_LDARG_0);
8078 /* TODO support adding wrappers to non-static struct methods */
8079 g_assert (!mono_class_is_valuetype(mono_method_get_class (method)));
8080 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8081 mono_mb_emit_icall (mb, mono_handle_new_full);
8083 for (i = 0; i < sig->param_count; i++) {
8084 /* load each argument. references into the managed heap get wrapped in handles */
8085 int j = i + sig->hasthis;
8086 switch (handles_locals[j].wrap) {
8087 case ICALL_HANDLES_WRAP_NONE:
8088 mono_mb_emit_ldarg (mb, j);
8090 case ICALL_HANDLES_WRAP_OBJ:
8091 /* argI = mono_handle_new_full (argI_raw, FALSE) */
8092 mono_mb_emit_ldarg (mb, j);
8093 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8094 mono_mb_emit_icall (mb, mono_handle_new_full);
8096 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8097 /* handleI = argI = mono_handle_new_full (NULL, FALSE) */
8098 mono_mb_emit_byte (mb, CEE_LDNULL);
8099 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8100 mono_mb_emit_icall (mb, mono_handle_new_full);
8102 mono_mb_emit_byte (mb, CEE_DUP);
8104 mono_mb_emit_stloc (mb, handles_locals[j].handle);
8106 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8107 /* (void) mono_handle_new_full (argI, TRUE); argI */
8108 mono_mb_emit_ldarg (mb, j);
8109 mono_mb_emit_byte (mb, CEE_DUP);
8110 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8111 mono_mb_emit_icall (mb, mono_handle_new_full);
8112 mono_mb_emit_byte (mb, CEE_POP);
8114 fprintf (stderr, " Method %s.%s.%s has byref valuetype argument %d\n", method->klass->name_space, method->klass->name, method->name, i);
8118 g_assert_not_reached ();
8121 mono_mb_emit_ldloc_addr (mb, error_var);
8124 mono_mb_emit_byte (mb, CEE_LDARG_0);
8125 for (i = 0; i < sig->param_count; i++)
8126 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8130 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8131 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8132 mono_mb_emit_calli (mb, call_sig);
8134 g_assert (piinfo->addr);
8135 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
8139 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
8140 // if (ret != NULL_HANDLE) {
8141 // ret = MONO_HANDLE_RAW(ret)
8143 mono_mb_emit_byte (mb, CEE_DUP);
8144 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8145 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8146 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8147 mono_mb_patch_branch (mb, pos);
8149 if (save_handles_to_locals) {
8150 for (i = 0; i < sig->param_count; i++) {
8151 int j = i + sig->hasthis;
8152 switch (handles_locals [j].wrap) {
8153 case ICALL_HANDLES_WRAP_NONE:
8154 case ICALL_HANDLES_WRAP_OBJ:
8155 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8157 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8158 /* *argI_raw = MONO_HANDLE_RAW (handleI) */
8161 mono_mb_emit_ldarg (mb, j);
8163 mono_mb_emit_ldloc (mb, handles_locals [j].handle);
8164 /* MONO_HANDLE_RAW(handleI) */
8165 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8166 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8167 /* *argI_raw = MONO_HANDLE_RAW(handleI) */
8168 mono_mb_emit_byte (mb, CEE_STIND_REF);
8171 g_assert_not_reached ();
8175 g_free (handles_locals);
8177 mono_mb_emit_ldloc (mb, thread_info_var);
8178 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8179 mono_mb_emit_ldloc_addr (mb, error_var);
8180 mono_mb_emit_icall (mb, mono_icall_end);
8183 if (check_exceptions)
8184 emit_thread_interrupt_checkpoint (mb);
8185 mono_mb_emit_byte (mb, CEE_RET);
8187 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8188 info->d.managed_to_native.method = method;
8190 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
8192 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8201 g_assert (piinfo->addr);
8204 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8205 mono_method_get_marshal_info (method, mspecs);
8207 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
8209 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
8210 info->d.managed_to_native.method = method;
8212 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8214 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8219 for (i = sig->param_count; i >= 0; i--)
8221 mono_metadata_free_marshal_spec (mspecs [i]);
8225 /* mono_method_print_code (res); */
8231 * mono_marshal_get_native_func_wrapper:
8232 * \param image The image to use for memory allocation and for looking up custom marshallers.
8233 * \param sig The signature of the function
8234 * \param func The native function to wrap
8236 * \returns a wrapper method around native functions, similar to the pinvoke
8240 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8241 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8243 MonoMethodSignature *csig;
8245 SignaturePointerPair key, *new_key;
8246 MonoMethodBuilder *mb;
8255 // Generic types are not safe to place in MonoImage caches.
8256 g_assert (!sig->is_inflated);
8258 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
8259 if ((res = mono_marshal_find_in_cache (cache, &key)))
8262 name = g_strdup_printf ("wrapper_native_%p", func);
8263 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8264 mb->method->save_lmf = 1;
8267 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8270 csig = mono_metadata_signature_dup_full (image, sig);
8273 new_key = g_new (SignaturePointerPair,1);
8274 new_key->sig = csig;
8275 new_key->pointer = func;
8277 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
8283 mono_marshal_set_wrapper_info (res, NULL);
8289 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8293 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8295 MonoMethodSignature *sig, *csig;
8296 MonoMethodBuilder *mb;
8301 MonoMethodPInvoke mpiinfo;
8302 MonoMethodPInvoke *piinfo = &mpiinfo;
8303 MonoMarshalSpec **mspecs;
8304 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8305 MonoImage *image = invoke->klass->image;
8308 // FIXME: include UnmanagedFunctionPointerAttribute info
8311 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8313 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8315 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8318 memset (&mpiinfo, 0, sizeof (mpiinfo));
8319 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8321 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8322 mono_method_get_marshal_info (invoke, mspecs);
8323 /* Freed below so don't alloc from mempool */
8324 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8327 name = g_strdup_printf ("wrapper_aot_native");
8328 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8329 mb->method->save_lmf = 1;
8332 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8335 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8336 info->d.managed_to_native.method = invoke;
8338 g_assert (!sig->hasthis);
8339 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8341 res = mono_mb_create_and_cache_full (cache, invoke,
8342 mb, csig, csig->param_count + 16,
8346 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8348 mono_metadata_free_marshal_spec (mspecs [i]);
8356 * mono_marshal_emit_managed_wrapper:
8358 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8359 * the delegate which wraps the managed method to be called. For closed delegates,
8360 * it could have fewer parameters than the method it wraps.
8361 * THIS_LOC is the memory location where the target of the delegate is stored.
8364 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8367 MonoMethodSignature *sig, *csig;
8373 /* we first do all conversions */
8374 for (i = 0; i < sig->param_count; i ++) {
8375 MonoType *t = sig->params [i];
8378 case MONO_TYPE_OBJECT:
8379 case MONO_TYPE_CLASS:
8380 case MONO_TYPE_VALUETYPE:
8381 case MONO_TYPE_ARRAY:
8382 case MONO_TYPE_SZARRAY:
8383 case MONO_TYPE_STRING:
8384 case MONO_TYPE_BOOLEAN:
8385 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8389 if (!sig->ret->byref) {
8390 switch (sig->ret->type) {
8391 case MONO_TYPE_STRING:
8392 csig->ret = &mono_defaults.int_class->byval_arg;
8399 MonoMethodSignature *sig, *csig;
8400 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8401 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8402 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8403 gboolean closed = FALSE;
8408 /* allocate local 0 (pointer) src_ptr */
8409 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8410 /* allocate local 1 (pointer) dst_ptr */
8411 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8412 /* allocate local 2 (boolean) delete_old */
8413 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8415 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8416 /* Closed delegate */
8417 g_assert (sig->param_count == invoke_sig->param_count + 1);
8419 /* Use a new signature without the first argument */
8420 sig = mono_metadata_signature_dup (sig);
8421 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8422 sig->param_count --;
8425 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8426 /* allocate local 3 to store the return value */
8427 mono_mb_add_local (mb, sig->ret);
8430 if (MONO_TYPE_ISSTRUCT (sig->ret))
8431 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8433 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8434 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8436 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8437 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8442 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8443 * mono_threads_attach_coop ();
8447 * ret = method (...);
8448 * } catch (Exception e) {
8449 * ex = mono_gchandle_new (e, false);
8451 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8452 * mono_threads_detach_coop ();
8455 * mono_marshal_ftnptr_eh_callback (ex);
8461 clauses = g_new0 (MonoExceptionClause, 2);
8463 clause_catch = &clauses [0];
8464 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8465 clause_catch->data.catch_class = mono_defaults.exception_class;
8467 clause_finally = &clauses [1];
8468 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8470 mono_mb_emit_icon (mb, 0);
8471 mono_mb_emit_stloc (mb, 2);
8473 mono_mb_emit_icon (mb, -1);
8474 mono_mb_emit_byte (mb, CEE_CONV_U4);
8475 mono_mb_emit_stloc (mb, ex_local);
8478 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8480 if (!mono_threads_is_coop_enabled ()) {
8481 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8482 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8484 /* mono_threads_attach_coop (); */
8485 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8486 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8487 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8488 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8489 mono_mb_emit_stloc (mb, attach_cookie_local);
8492 /* <interrupt check> */
8493 emit_thread_interrupt_checkpoint (mb);
8495 /* we first do all conversions */
8496 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8497 for (i = 0; i < sig->param_count; i ++) {
8498 MonoType *t = sig->params [i];
8501 case MONO_TYPE_OBJECT:
8502 case MONO_TYPE_CLASS:
8503 case MONO_TYPE_VALUETYPE:
8504 case MONO_TYPE_ARRAY:
8505 case MONO_TYPE_SZARRAY:
8506 case MONO_TYPE_STRING:
8507 case MONO_TYPE_BOOLEAN:
8508 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8518 if (target_handle) {
8519 mono_mb_emit_icon (mb, (gint32)target_handle);
8520 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8523 g_assert_not_reached ();
8525 } else if (closed) {
8526 mono_mb_emit_icon (mb, (gint32)target_handle);
8527 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8530 for (i = 0; i < sig->param_count; i++) {
8531 MonoType *t = sig->params [i];
8533 if (tmp_locals [i]) {
8535 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8537 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8540 mono_mb_emit_ldarg (mb, i);
8543 /* ret = method (...) */
8544 mono_mb_emit_managed_call (mb, method, NULL);
8546 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8547 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8548 mono_class_init (klass);
8549 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
8550 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8551 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8552 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8553 mono_mb_emit_stloc (mb, m->vtaddr_var);
8557 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8558 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8559 } else if (!sig->ret->byref) {
8560 switch (sig->ret->type) {
8561 case MONO_TYPE_VOID:
8563 case MONO_TYPE_BOOLEAN:
8566 case MONO_TYPE_CHAR:
8578 case MONO_TYPE_OBJECT:
8579 mono_mb_emit_stloc (mb, 3);
8581 case MONO_TYPE_STRING:
8582 csig->ret = &mono_defaults.int_class->byval_arg;
8583 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8585 case MONO_TYPE_VALUETYPE:
8586 case MONO_TYPE_CLASS:
8587 case MONO_TYPE_SZARRAY:
8588 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8591 g_warning ("return type 0x%02x unknown", sig->ret->type);
8592 g_assert_not_reached ();
8595 mono_mb_emit_stloc (mb, 3);
8598 /* Convert byref arguments back */
8599 for (i = 0; i < sig->param_count; i ++) {
8600 MonoType *t = sig->params [i];
8601 MonoMarshalSpec *spec = mspecs [i + 1];
8603 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8604 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8606 else if (t->byref) {
8608 case MONO_TYPE_CLASS:
8609 case MONO_TYPE_VALUETYPE:
8610 case MONO_TYPE_OBJECT:
8611 case MONO_TYPE_STRING:
8612 case MONO_TYPE_BOOLEAN:
8613 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8619 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8620 /* The [Out] information is encoded in the delegate signature */
8622 case MONO_TYPE_SZARRAY:
8623 case MONO_TYPE_CLASS:
8624 case MONO_TYPE_VALUETYPE:
8625 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8628 g_assert_not_reached ();
8633 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8637 /* catch (Exception e) { */
8638 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8639 clause_catch->handler_offset = mono_mb_get_label (mb);
8641 mono_mb_emit_stloc (mb, e_local);
8643 /* ex = mono_gchandle_new (e, false); */
8644 mono_mb_emit_ldloc (mb, e_local);
8645 mono_mb_emit_icon (mb, 0);
8646 mono_mb_emit_icall (mb, mono_gchandle_new);
8647 mono_mb_emit_stloc (mb, ex_local);
8649 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8652 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8655 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8656 clause_finally->handler_offset = mono_mb_get_label (mb);
8658 if (!mono_threads_is_coop_enabled ()) {
8659 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8660 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8662 /* mono_threads_detach_coop (); */
8663 mono_mb_emit_ldloc (mb, attach_cookie_local);
8664 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8665 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8669 mono_mb_emit_ldloc (mb, ex_local);
8670 mono_mb_emit_icon (mb, -1);
8671 mono_mb_emit_byte (mb, CEE_CONV_U4);
8672 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8674 /* mono_marshal_ftnptr_eh_callback (ex) */
8675 mono_mb_emit_ldloc (mb, ex_local);
8676 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8679 mono_mb_patch_branch (mb, ex_m1_pos);
8681 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8683 /* } [endfinally] */
8684 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8686 mono_mb_patch_branch (mb, leave_try_pos);
8687 mono_mb_patch_branch (mb, leave_catch_pos);
8690 if (m->retobj_var) {
8691 mono_mb_emit_ldloc (mb, m->retobj_var);
8692 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8693 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8696 if (!MONO_TYPE_IS_VOID(sig->ret))
8697 mono_mb_emit_ldloc (mb, 3);
8698 mono_mb_emit_byte (mb, CEE_RET);
8701 mono_mb_set_clauses (mb, 2, clauses);
8709 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8711 MonoMethodSignature *sig;
8716 * Under windows, delegates passed to native code must use the STDCALL
8717 * calling convention.
8719 csig->call_convention = MONO_CALL_STDCALL;
8722 sig = mono_method_signature (method);
8724 /* Change default calling convention if needed */
8725 /* Why is this a modopt ? */
8726 if (sig->ret && sig->ret->num_mods) {
8727 for (i = 0; i < sig->ret->num_mods; ++i) {
8729 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8730 g_assert (mono_error_ok (&error));
8731 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8732 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8733 csig->call_convention = MONO_CALL_C;
8734 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8735 csig->call_convention = MONO_CALL_STDCALL;
8736 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8737 csig->call_convention = MONO_CALL_FASTCALL;
8738 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8739 csig->call_convention = MONO_CALL_THISCALL;
8746 * generates IL code to call managed methods from unmanaged code
8747 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8750 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle, MonoError *error)
8752 MonoMethodSignature *sig, *csig, *invoke_sig;
8753 MonoMethodBuilder *mb;
8754 MonoMethod *res, *invoke;
8755 MonoMarshalSpec **mspecs;
8756 MonoMethodPInvoke piinfo;
8759 EmitMarshalContext m;
8761 g_assert (method != NULL);
8764 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
8765 mono_error_set_invalid_program (error, "Failed because method (%s) marked PInvokeCallback (managed method) and extern (unmanaged) simultaneously.", mono_method_full_name (method, TRUE));
8770 * FIXME: Should cache the method+delegate type pair, since the same method
8771 * could be called with different delegates, thus different marshalling
8774 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8776 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8779 invoke = mono_get_delegate_invoke (delegate_klass);
8780 invoke_sig = mono_method_signature (invoke);
8782 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8783 mono_method_get_marshal_info (invoke, mspecs);
8785 sig = mono_method_signature (method);
8787 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8789 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8790 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8792 /* we copy the signature, so that we can modify it */
8794 /* Need to free this later */
8795 csig = mono_metadata_signature_dup (invoke_sig);
8797 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8801 memset (&m, 0, sizeof (m));
8807 m.image = method->klass->image;
8809 mono_marshal_set_callconv_from_modopt (invoke, csig);
8811 /* The attribute is only available in Net 2.0 */
8812 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8813 MonoCustomAttrInfo *cinfo;
8814 MonoCustomAttrEntry *attr;
8817 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8818 * contents of the attribute without constructing it, as that might not be
8819 * possible when running in cross-compiling mode.
8821 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, error);
8822 mono_error_assert_ok (error);
8825 for (i = 0; i < cinfo->num_attrs; ++i) {
8826 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8827 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8828 attr = &cinfo->attrs [i];
8834 MonoArray *typed_args, *named_args;
8835 CattrNamedArg *arginfo;
8839 MonoBoolean set_last_error = 0;
8842 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8843 g_assert (mono_error_ok (&error));
8844 g_assert (mono_array_length (typed_args) == 1);
8847 o = mono_array_get (typed_args, MonoObject*, 0);
8848 call_conv = *(gint32*)mono_object_unbox (o);
8851 for (i = 0; i < mono_array_length (named_args); ++i) {
8852 CattrNamedArg *narg = &arginfo [i];
8854 o = mono_array_get (named_args, MonoObject*, i);
8856 g_assert (narg->field);
8857 if (!strcmp (narg->field->name, "CharSet")) {
8858 charset = *(gint32*)mono_object_unbox (o);
8859 } else if (!strcmp (narg->field->name, "SetLastError")) {
8860 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8861 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8862 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8863 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8864 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8866 g_assert_not_reached ();
8872 memset (&piinfo, 0, sizeof (piinfo));
8874 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8876 csig->call_convention = call_conv - 1;
8879 if (cinfo && !cinfo->cached)
8880 mono_custom_attrs_free (cinfo);
8883 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8885 if (!target_handle) {
8888 // FIXME: Associate it with the method+delegate_klass pair
8889 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8890 info->d.native_to_managed.method = method;
8891 info->d.native_to_managed.klass = delegate_klass;
8893 res = mono_mb_create_and_cache_full (cache, method,
8894 mb, csig, sig->param_count + 16,
8900 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8904 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8906 mono_metadata_free_marshal_spec (mspecs [i]);
8909 /* mono_method_print_code (res); */
8915 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8919 MonoMethodSignature *sig;
8920 MonoMethodBuilder *mb;
8925 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8927 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8930 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8931 MonoMethodSignature *csig;
8932 MonoMarshalSpec **mspecs;
8933 EmitMarshalContext m;
8935 sig = mono_method_signature (method);
8936 g_assert (!sig->hasthis);
8938 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8939 mono_method_get_marshal_info (method, mspecs);
8941 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8942 csig = mono_metadata_signature_dup_full (image, sig);
8946 memset (&m, 0, sizeof (m));
8954 mono_marshal_set_callconv_from_modopt (method, csig);
8956 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8958 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8963 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8966 for (i = sig->param_count; i >= 0; i--)
8968 mono_metadata_free_marshal_spec (mspecs [i]);
8971 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8972 mono_error_assert_ok (&error);
8973 return compiled_ptr;
8976 sig = mono_method_signature (method);
8977 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8979 param_count = sig->param_count + sig->hasthis;
8981 for (i = 0; i < param_count; i++)
8982 mono_mb_emit_ldarg (mb, i);
8984 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8985 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8987 mono_mb_emit_op (mb, CEE_CALL, method);
8988 mono_mb_emit_byte (mb, CEE_RET);
8993 method = mono_mb_create (mb, sig, param_count, NULL);
8996 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8997 mono_error_assert_ok (&error);
8998 return compiled_ptr;
9004 * The code directly following this is the cache hit, value positive branch
9006 * This function takes a new method builder with 0 locals and adds two locals
9007 * to create multiple out-branches and the fall through state of having the object
9008 * on the stack after a cache miss
9011 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
9012 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
9013 MonoMethodBuilder *mb)
9017 /* allocate local 0 (pointer) obj_vtable */
9018 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9019 /* allocate local 1 (pointer) cached_vtable */
9020 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9023 mono_mb_emit_ldarg (mb, obj_arg_position);
9024 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
9026 /*obj_vtable = obj->vtable;*/
9027 mono_mb_emit_ldarg (mb, obj_arg_position);
9028 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9029 mono_mb_emit_byte (mb, CEE_LDIND_I);
9030 mono_mb_emit_stloc (mb, 0);
9032 /* cached_vtable = *cache*/
9033 mono_mb_emit_ldarg (mb, cache_arg_position);
9034 mono_mb_emit_byte (mb, CEE_LDIND_I);
9035 mono_mb_emit_stloc (mb, 1);
9037 mono_mb_emit_ldloc (mb, 1);
9038 mono_mb_emit_byte (mb, CEE_LDC_I4);
9039 mono_mb_emit_i4 (mb, ~0x1);
9040 mono_mb_emit_byte (mb, CEE_CONV_I);
9041 mono_mb_emit_byte (mb, CEE_AND);
9042 mono_mb_emit_ldloc (mb, 0);
9043 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9044 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9046 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9047 mono_mb_emit_ldloc (mb, 1);
9048 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9049 mono_mb_emit_byte (mb, CEE_CONV_U);
9050 mono_mb_emit_byte (mb, CEE_AND);
9051 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
9052 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9055 mono_mb_patch_branch (mb, cache_miss_pos);
9058 mono_mb_emit_ldarg (mb, obj_arg_position);
9059 mono_mb_emit_ldarg (mb, class_arg_position);
9060 mono_mb_emit_ldarg (mb, cache_arg_position);
9061 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
9064 #endif /* DISABLE_JIT */
9067 * This does the equivalent of mono_object_castclass_with_cache.
9070 mono_marshal_get_castclass_with_cache (void)
9072 static MonoMethod *cached;
9074 MonoMethodBuilder *mb;
9075 MonoMethodSignature *sig;
9076 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
9079 const int obj_arg_position = 0;
9080 const int class_arg_position = 1;
9081 const int cache_arg_position = 2;
9086 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9087 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9088 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9089 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 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9100 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9101 mono_mb_emit_ldarg (mb, obj_arg_position);
9102 mono_mb_emit_byte (mb, CEE_RET);
9105 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9106 mono_mb_patch_branch (mb, invalid_cast_pos);
9107 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9110 mono_mb_patch_branch (mb, return_null_pos);
9111 mono_mb_emit_byte (mb, CEE_LDNULL);
9112 mono_mb_emit_byte (mb, CEE_RET);
9113 #endif /* DISABLE_JIT */
9115 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9116 res = mono_mb_create (mb, sig, 8, info);
9119 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9120 mono_free_method (res);
9121 mono_metadata_free_method_signature (sig);
9128 /* this is an icall */
9130 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
9133 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
9134 if (mono_error_set_pending_exception (&error))
9137 if (mono_object_is_transparent_proxy (obj))
9140 uintptr_t cache_update = (uintptr_t)obj->vtable;
9142 cache_update = cache_update | 0x1;
9144 *cache = cache_update;
9150 * This does the equivalent of mono_object_isinst_with_cache.
9153 mono_marshal_get_isinst_with_cache (void)
9155 static MonoMethod *cached;
9157 MonoMethodBuilder *mb;
9158 MonoMethodSignature *sig;
9159 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
9162 const int obj_arg_position = 0;
9163 const int class_arg_position = 1;
9164 const int cache_arg_position = 2;
9169 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9170 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9172 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9174 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9176 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9177 sig->ret = &mono_defaults.object_class->byval_arg;
9181 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9182 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9183 // Return the object gotten via the slow path.
9184 mono_mb_emit_byte (mb, CEE_RET);
9187 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9188 mono_mb_patch_branch (mb, return_null_pos);
9189 mono_mb_emit_byte (mb, CEE_LDNULL);
9190 mono_mb_emit_byte (mb, CEE_RET);
9193 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9194 mono_mb_emit_ldarg (mb, obj_arg_position);
9195 mono_mb_emit_byte (mb, CEE_RET);
9198 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9199 res = mono_mb_create (mb, sig, 8, info);
9202 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9203 mono_free_method (res);
9204 mono_metadata_free_method_signature (sig);
9212 * mono_marshal_get_struct_to_ptr:
9213 * \param klass \c MonoClass
9215 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
9218 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9220 MonoMethodBuilder *mb;
9221 static MonoMethod *stoptr = NULL;
9225 g_assert (klass != NULL);
9227 mono_marshal_load_type_info (klass);
9229 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9230 if (marshal_info->str_to_ptr)
9231 return marshal_info->str_to_ptr;
9234 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9237 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9240 if (klass->blittable) {
9241 mono_mb_emit_byte (mb, CEE_LDARG_1);
9242 mono_mb_emit_byte (mb, CEE_LDARG_0);
9243 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9244 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9245 mono_mb_emit_byte (mb, CEE_PREFIX1);
9246 mono_mb_emit_byte (mb, CEE_CPBLK);
9249 /* allocate local 0 (pointer) src_ptr */
9250 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9251 /* allocate local 1 (pointer) dst_ptr */
9252 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9253 /* allocate local 2 (boolean) delete_old */
9254 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9255 mono_mb_emit_byte (mb, CEE_LDARG_2);
9256 mono_mb_emit_stloc (mb, 2);
9258 /* initialize src_ptr to point to the start of object data */
9259 mono_mb_emit_byte (mb, CEE_LDARG_0);
9260 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9261 mono_mb_emit_stloc (mb, 0);
9263 /* initialize dst_ptr */
9264 mono_mb_emit_byte (mb, CEE_LDARG_1);
9265 mono_mb_emit_stloc (mb, 1);
9267 emit_struct_conv (mb, klass, FALSE);
9270 mono_mb_emit_byte (mb, CEE_RET);
9272 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9273 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9276 mono_marshal_lock ();
9277 if (!marshal_info->str_to_ptr)
9278 marshal_info->str_to_ptr = res;
9280 res = marshal_info->str_to_ptr;
9281 mono_marshal_unlock ();
9286 * mono_marshal_get_ptr_to_struct:
9287 * \param klass \c MonoClass
9289 * generates IL code for PtrToStructure (IntPtr src, object structure)
9292 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9294 MonoMethodBuilder *mb;
9295 static MonoMethodSignature *ptostr = NULL;
9299 g_assert (klass != NULL);
9301 mono_marshal_load_type_info (klass);
9303 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9304 if (marshal_info->ptr_to_str)
9305 return marshal_info->ptr_to_str;
9308 MonoMethodSignature *sig;
9310 /* Create the signature corresponding to
9311 static void PtrToStructure (IntPtr ptr, object structure);
9312 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9313 sig = mono_create_icall_signature ("void ptr object");
9314 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9316 mono_memory_barrier ();
9320 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9323 if (klass->blittable) {
9324 mono_mb_emit_byte (mb, CEE_LDARG_1);
9325 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9326 mono_mb_emit_byte (mb, CEE_LDARG_0);
9327 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9328 mono_mb_emit_byte (mb, CEE_PREFIX1);
9329 mono_mb_emit_byte (mb, CEE_CPBLK);
9332 /* allocate local 0 (pointer) src_ptr */
9333 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9334 /* allocate local 1 (pointer) dst_ptr */
9335 mono_mb_add_local (mb, &klass->this_arg);
9337 /* initialize src_ptr to point to the start of object data */
9338 mono_mb_emit_byte (mb, CEE_LDARG_0);
9339 mono_mb_emit_stloc (mb, 0);
9341 /* initialize dst_ptr */
9342 mono_mb_emit_byte (mb, CEE_LDARG_1);
9343 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9344 mono_mb_emit_stloc (mb, 1);
9346 emit_struct_conv (mb, klass, TRUE);
9349 mono_mb_emit_byte (mb, CEE_RET);
9351 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9352 res = mono_mb_create (mb, ptostr, 0, info);
9355 mono_marshal_lock ();
9356 if (!marshal_info->ptr_to_str)
9357 marshal_info->ptr_to_str = res;
9359 res = marshal_info->ptr_to_str;
9360 mono_marshal_unlock ();
9365 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9366 * This is used to avoid infinite recursion since it is hard to determine where to
9367 * replace a method with its synchronized wrapper, and where not.
9368 * The runtime should execute METHOD instead of the wrapper.
9371 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9373 MonoMethodBuilder *mb;
9375 MonoMethodSignature *sig;
9377 MonoGenericContext *ctx = NULL;
9378 MonoGenericContainer *container = NULL;
9380 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9381 ctx = &((MonoMethodInflated*)method)->context;
9382 method = ((MonoMethodInflated*)method)->declaring;
9383 container = mono_method_get_generic_container (method);
9385 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9386 g_assert (container);
9389 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9391 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9392 mono_mb_emit_byte (mb, CEE_RET);
9394 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9396 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9397 info->d.synchronized_inner.method = method;
9398 res = mono_mb_create (mb, sig, 0, info);
9402 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9403 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9409 * generates IL code for the synchronized wrapper: the generated method
9410 * calls METHOD while locking 'this' or the parent type.
9413 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9415 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9416 MonoMethodSignature *sig;
9417 MonoExceptionClause *clause;
9418 MonoMethodBuilder *mb;
9422 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9423 MonoGenericContext *ctx = NULL;
9424 MonoMethod *orig_method = NULL;
9425 MonoGenericContainer *container = NULL;
9429 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9432 /* FIXME: Support generic methods too */
9433 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9434 orig_method = method;
9435 ctx = &((MonoMethodInflated*)method)->context;
9436 method = ((MonoMethodInflated*)method)->declaring;
9437 container = mono_method_get_generic_container (method);
9439 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9440 g_assert (container);
9447 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9448 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9452 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9453 if ((res = mono_marshal_find_in_cache (cache, method)))
9457 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9460 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9462 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9463 info->d.synchronized.method = method;
9466 mb->skip_visibility = 1;
9468 if (!MONO_TYPE_IS_VOID (sig->ret))
9469 ret_local = mono_mb_add_local (mb, sig->ret);
9472 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9473 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9474 mono_class_set_type_load_failure (method->klass, "");
9476 /* This will throw the type load exception when the wrapper is compiled */
9477 mono_mb_emit_byte (mb, CEE_LDNULL);
9478 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9479 mono_mb_emit_byte (mb, CEE_POP);
9481 if (!MONO_TYPE_IS_VOID (sig->ret))
9482 mono_mb_emit_ldloc (mb, ret_local);
9483 mono_mb_emit_byte (mb, CEE_RET);
9486 res = mono_mb_create_and_cache_full (cache, method,
9487 mb, sig, sig->param_count + 16, info, NULL);
9495 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9496 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9498 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9499 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9502 mono_marshal_lock ();
9504 if (!enter_method) {
9505 MonoMethodDesc *desc;
9507 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9508 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9509 g_assert (enter_method);
9510 mono_method_desc_free (desc);
9512 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9513 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9514 g_assert (exit_method);
9515 mono_method_desc_free (desc);
9517 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9518 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9519 g_assert (gettypefromhandle_method);
9520 mono_method_desc_free (desc);
9523 mono_marshal_unlock ();
9526 /* Push this or the type object */
9527 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9528 /* We have special handling for this in the JIT */
9529 int index = mono_mb_add_data (mb, method->klass);
9530 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9531 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9532 mono_mb_emit_i4 (mb, index);
9534 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9537 mono_mb_emit_ldarg (mb, 0);
9538 mono_mb_emit_stloc (mb, this_local);
9540 /* Call Monitor::Enter() */
9541 mono_mb_emit_ldloc (mb, this_local);
9542 mono_mb_emit_ldloc_addr (mb, taken_local);
9543 mono_mb_emit_managed_call (mb, enter_method, NULL);
9545 clause->try_offset = mono_mb_get_label (mb);
9547 /* Call the method */
9549 mono_mb_emit_ldarg (mb, 0);
9550 for (i = 0; i < sig->param_count; i++)
9551 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9555 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9556 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9558 mono_mb_emit_managed_call (mb, method, NULL);
9561 if (!MONO_TYPE_IS_VOID (sig->ret))
9562 mono_mb_emit_stloc (mb, ret_local);
9564 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9566 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9567 clause->handler_offset = mono_mb_get_label (mb);
9569 /* Call Monitor::Exit() if needed */
9570 mono_mb_emit_ldloc (mb, taken_local);
9571 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9572 mono_mb_emit_ldloc (mb, this_local);
9573 mono_mb_emit_managed_call (mb, exit_method, NULL);
9574 mono_mb_patch_branch (mb, pos2);
9575 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9577 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9579 mono_mb_patch_branch (mb, pos);
9580 if (!MONO_TYPE_IS_VOID (sig->ret))
9581 mono_mb_emit_ldloc (mb, ret_local);
9582 mono_mb_emit_byte (mb, CEE_RET);
9584 mono_mb_set_clauses (mb, 1, clause);
9589 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9590 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9592 res = mono_mb_create_and_cache_full (cache, method,
9593 mb, sig, sig->param_count + 16, info, NULL);
9602 * the returned method calls 'method' unboxing the this argument
9605 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9607 MonoMethodSignature *sig = mono_method_signature (method);
9609 MonoMethodBuilder *mb;
9614 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9616 if ((res = mono_marshal_find_in_cache (cache, method)))
9619 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9621 g_assert (sig->hasthis);
9624 mono_mb_emit_ldarg (mb, 0);
9625 mono_mb_emit_icon (mb, sizeof (MonoObject));
9626 mono_mb_emit_byte (mb, CEE_ADD);
9627 for (i = 0; i < sig->param_count; ++i)
9628 mono_mb_emit_ldarg (mb, i + 1);
9629 mono_mb_emit_managed_call (mb, method, NULL);
9630 mono_mb_emit_byte (mb, CEE_RET);
9633 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9634 info->d.unbox.method = method;
9636 res = mono_mb_create_and_cache_full (cache, method,
9637 mb, sig, sig->param_count + 16, info, NULL);
9640 /* mono_method_print_code (res); */
9646 STELEMREF_OBJECT, /*no check at all*/
9647 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9648 STELEMREF_CLASS, /*only the klass->parents check*/
9649 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9650 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9651 STELEMREF_KIND_COUNT
9654 static const char *strelemref_wrapper_name[] = {
9655 "object", "sealed_class", "class", "interface", "complex"
9659 is_monomorphic_array (MonoClass *klass)
9661 MonoClass *element_class;
9662 if (klass->rank != 1)
9665 element_class = klass->element_class;
9666 return mono_class_is_sealed (element_class) || element_class->valuetype;
9670 get_virtual_stelemref_kind (MonoClass *element_class)
9672 if (element_class == mono_defaults.object_class)
9673 return STELEMREF_OBJECT;
9674 if (is_monomorphic_array (element_class))
9675 return STELEMREF_SEALED_CLASS;
9676 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9677 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9678 #ifdef COMPRESSED_INTERFACE_BITMAP
9679 return STELEMREF_COMPLEX;
9681 return STELEMREF_INTERFACE;
9683 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9684 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9685 return STELEMREF_COMPLEX;
9686 if (mono_class_is_sealed (element_class))
9687 return STELEMREF_SEALED_CLASS;
9688 return STELEMREF_CLASS;
9694 load_array_element_address (MonoMethodBuilder *mb)
9696 mono_mb_emit_ldarg (mb, 0);
9697 mono_mb_emit_ldarg (mb, 1);
9698 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9702 load_array_class (MonoMethodBuilder *mb, int aklass)
9704 mono_mb_emit_ldarg (mb, 0);
9705 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9706 mono_mb_emit_byte (mb, CEE_LDIND_I);
9707 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9708 mono_mb_emit_byte (mb, CEE_LDIND_I);
9709 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9710 mono_mb_emit_byte (mb, CEE_LDIND_I);
9711 mono_mb_emit_stloc (mb, aklass);
9715 load_value_class (MonoMethodBuilder *mb, int vklass)
9717 mono_mb_emit_ldarg (mb, 2);
9718 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9719 mono_mb_emit_byte (mb, CEE_LDIND_I);
9720 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9721 mono_mb_emit_byte (mb, CEE_LDIND_I);
9722 mono_mb_emit_stloc (mb, vklass);
9728 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9730 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9731 printf ("slow vstore of %s\n", name);
9738 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9739 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9740 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9741 * - Add a case for arrays of arrays.
9744 get_virtual_stelemref_wrapper (int kind)
9746 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9747 static MonoMethodSignature *signature;
9748 MonoMethodBuilder *mb;
9751 const char *param_names [16];
9752 guint32 b1, b2, b3, b4;
9753 int aklass, vklass, vtable, uiid;
9754 int array_slot_addr;
9757 if (cached_methods [kind])
9758 return cached_methods [kind];
9760 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9761 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9765 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9767 /* void this::stelemref (size_t idx, void* value) */
9768 sig->ret = &mono_defaults.void_class->byval_arg;
9769 sig->hasthis = TRUE;
9770 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9771 sig->params [1] = &mono_defaults.object_class->byval_arg;
9776 param_names [0] = "index";
9777 param_names [1] = "value";
9778 mono_mb_set_param_names (mb, param_names);
9780 /*For now simply call plain old stelemref*/
9782 case STELEMREF_OBJECT:
9783 /* ldelema (implicit bound check) */
9784 load_array_element_address (mb);
9786 mono_mb_emit_ldarg (mb, 2);
9787 mono_mb_emit_byte (mb, CEE_STIND_REF);
9788 mono_mb_emit_byte (mb, CEE_RET);
9791 case STELEMREF_COMPLEX: {
9794 <ldelema (bound check)>
9797 if (!mono_object_isinst (value, aklass))
9801 *array_slot_addr = value;
9804 throw new ArrayTypeMismatchException ();
9807 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9808 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9809 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9813 /*Use this to debug/record stores that are going thru the slow path*/
9814 MonoMethodSignature *csig;
9815 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9816 csig->ret = &mono_defaults.void_class->byval_arg;
9817 csig->params [0] = &mono_defaults.object_class->byval_arg;
9818 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9819 csig->params [2] = &mono_defaults.object_class->byval_arg;
9820 mono_mb_emit_ldarg (mb, 0);
9821 mono_mb_emit_ldarg (mb, 1);
9822 mono_mb_emit_ldarg (mb, 2);
9823 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9827 /* ldelema (implicit bound check) */
9828 load_array_element_address (mb);
9829 mono_mb_emit_stloc (mb, array_slot_addr);
9831 /* if (!value) goto do_store */
9832 mono_mb_emit_ldarg (mb, 2);
9833 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9835 /* aklass = array->vtable->klass->element_class */
9836 load_array_class (mb, aklass);
9837 /* vklass = value->vtable->klass */
9838 load_value_class (mb, vklass);
9841 mono_mb_emit_ldloc (mb, vklass);
9842 mono_mb_emit_ldloc (mb, aklass);
9843 b_fast = mono_mb_emit_branch (mb, CEE_BEQ);
9845 /*if (mono_object_isinst (value, aklass)) */
9846 mono_mb_emit_ldarg (mb, 2);
9847 mono_mb_emit_ldloc (mb, aklass);
9848 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9849 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9852 mono_mb_patch_branch (mb, b1);
9853 mono_mb_patch_branch (mb, b_fast);
9854 mono_mb_emit_ldloc (mb, array_slot_addr);
9855 mono_mb_emit_ldarg (mb, 2);
9856 mono_mb_emit_byte (mb, CEE_STIND_REF);
9857 mono_mb_emit_byte (mb, CEE_RET);
9860 mono_mb_patch_branch (mb, b2);
9862 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9865 case STELEMREF_SEALED_CLASS:
9867 <ldelema (bound check)>
9871 aklass = array->vtable->klass->element_class;
9872 vklass = value->vtable->klass;
9874 if (vklass != aklass)
9878 *array_slot_addr = value;
9881 throw new ArrayTypeMismatchException ();
9883 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9884 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9885 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9887 /* ldelema (implicit bound check) */
9888 load_array_element_address (mb);
9889 mono_mb_emit_stloc (mb, array_slot_addr);
9891 /* if (!value) goto do_store */
9892 mono_mb_emit_ldarg (mb, 2);
9893 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9895 /* aklass = array->vtable->klass->element_class */
9896 load_array_class (mb, aklass);
9898 /* vklass = value->vtable->klass */
9899 load_value_class (mb, vklass);
9901 /*if (vklass != aklass) goto do_exception; */
9902 mono_mb_emit_ldloc (mb, aklass);
9903 mono_mb_emit_ldloc (mb, vklass);
9904 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9907 mono_mb_patch_branch (mb, b1);
9908 mono_mb_emit_ldloc (mb, array_slot_addr);
9909 mono_mb_emit_ldarg (mb, 2);
9910 mono_mb_emit_byte (mb, CEE_STIND_REF);
9911 mono_mb_emit_byte (mb, CEE_RET);
9914 mono_mb_patch_branch (mb, b2);
9915 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9918 case STELEMREF_CLASS: {
9923 <ldelema (bound check)>
9927 aklass = array->vtable->klass->element_class;
9928 vklass = value->vtable->klass;
9930 if (vklass->idepth < aklass->idepth)
9933 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9937 *array_slot_addr = value;
9941 throw new ArrayTypeMismatchException ();
9943 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9944 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9945 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9947 /* ldelema (implicit bound check) */
9948 load_array_element_address (mb);
9949 mono_mb_emit_stloc (mb, array_slot_addr);
9951 /* if (!value) goto do_store */
9952 mono_mb_emit_ldarg (mb, 2);
9953 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9955 /* aklass = array->vtable->klass->element_class */
9956 load_array_class (mb, aklass);
9958 /* vklass = value->vtable->klass */
9959 load_value_class (mb, vklass);
9962 mono_mb_emit_ldloc (mb, vklass);
9963 mono_mb_emit_ldloc (mb, aklass);
9964 b_fast = mono_mb_emit_branch (mb, CEE_BEQ);
9966 /*if (mono_object_isinst (value, aklass)) */
9967 mono_mb_emit_ldarg (mb, 2);
9968 mono_mb_emit_ldloc (mb, aklass);
9969 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9970 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9972 /* if (vklass->idepth < aklass->idepth) goto failue */
9973 mono_mb_emit_ldloc (mb, vklass);
9974 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9975 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9977 mono_mb_emit_ldloc (mb, aklass);
9978 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9979 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9981 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9983 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9984 mono_mb_emit_ldloc (mb, vklass);
9985 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9986 mono_mb_emit_byte (mb, CEE_LDIND_I);
9988 mono_mb_emit_ldloc (mb, aklass);
9989 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9990 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9991 mono_mb_emit_icon (mb, 1);
9992 mono_mb_emit_byte (mb, CEE_SUB);
9993 mono_mb_emit_icon (mb, sizeof (void*));
9994 mono_mb_emit_byte (mb, CEE_MUL);
9995 mono_mb_emit_byte (mb, CEE_ADD);
9996 mono_mb_emit_byte (mb, CEE_LDIND_I);
9998 mono_mb_emit_ldloc (mb, aklass);
9999 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10002 mono_mb_patch_branch (mb, b1);
10003 mono_mb_patch_branch (mb, b_fast);
10004 mono_mb_emit_ldloc (mb, array_slot_addr);
10005 mono_mb_emit_ldarg (mb, 2);
10006 mono_mb_emit_byte (mb, CEE_STIND_REF);
10007 mono_mb_emit_byte (mb, CEE_RET);
10009 /* do_exception: */
10010 mono_mb_patch_branch (mb, b2);
10011 mono_mb_patch_branch (mb, b3);
10012 mono_mb_patch_branch (mb, b4);
10014 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10017 case STELEMREF_INTERFACE:
10024 klass = array->obj.vtable->klass->element_class;
10025 vt = value->vtable;
10026 uiid = klass->interface_id;
10027 if (uiid > vt->max_interface_id)
10029 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10032 mono_array_setref (array, index, value);
10035 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10037 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10038 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10039 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10040 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10042 /* ldelema (implicit bound check) */
10043 load_array_element_address (mb);
10044 mono_mb_emit_stloc (mb, array_slot_addr);
10046 /* if (!value) goto do_store */
10047 mono_mb_emit_ldarg (mb, 2);
10048 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10050 /* klass = array->vtable->klass->element_class */
10051 load_array_class (mb, aklass);
10053 /* vt = value->vtable */
10054 mono_mb_emit_ldarg (mb, 2);
10055 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10056 mono_mb_emit_byte (mb, CEE_LDIND_I);
10057 mono_mb_emit_stloc (mb, vtable);
10059 /* uiid = klass->interface_id; */
10060 mono_mb_emit_ldloc (mb, aklass);
10061 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
10062 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10063 mono_mb_emit_stloc (mb, uiid);
10065 /*if (uiid > vt->max_interface_id)*/
10066 mono_mb_emit_ldloc (mb, uiid);
10067 mono_mb_emit_ldloc (mb, vtable);
10068 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
10069 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10070 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10072 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10074 /*vt->interface_bitmap*/
10075 mono_mb_emit_ldloc (mb, vtable);
10076 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10077 mono_mb_emit_byte (mb, CEE_LDIND_I);
10080 mono_mb_emit_ldloc (mb, uiid);
10081 mono_mb_emit_icon (mb, 3);
10082 mono_mb_emit_byte (mb, CEE_SHR_UN);
10084 /*vt->interface_bitmap [(uiid) >> 3]*/
10085 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10086 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10088 /*(1 << ((uiid)&7)))*/
10089 mono_mb_emit_icon (mb, 1);
10090 mono_mb_emit_ldloc (mb, uiid);
10091 mono_mb_emit_icon (mb, 7);
10092 mono_mb_emit_byte (mb, CEE_AND);
10093 mono_mb_emit_byte (mb, CEE_SHL);
10095 /*bitwise and the whole thing*/
10096 mono_mb_emit_byte (mb, CEE_AND);
10097 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10100 mono_mb_patch_branch (mb, b1);
10101 mono_mb_emit_ldloc (mb, array_slot_addr);
10102 mono_mb_emit_ldarg (mb, 2);
10103 mono_mb_emit_byte (mb, CEE_STIND_REF);
10104 mono_mb_emit_byte (mb, CEE_RET);
10106 /* do_exception: */
10107 mono_mb_patch_branch (mb, b2);
10108 mono_mb_patch_branch (mb, b3);
10109 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10113 mono_mb_emit_ldarg (mb, 0);
10114 mono_mb_emit_ldarg (mb, 1);
10115 mono_mb_emit_ldarg (mb, 2);
10116 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10117 mono_mb_emit_byte (mb, CEE_RET);
10120 #endif /* DISABLE_JIT */
10121 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10122 info->d.virtual_stelemref.kind = kind;
10123 res = mono_mb_create (mb, signature, 4, info);
10124 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10126 mono_marshal_lock ();
10127 if (!cached_methods [kind]) {
10128 cached_methods [kind] = res;
10129 mono_marshal_unlock ();
10131 mono_marshal_unlock ();
10132 mono_free_method (res);
10136 return cached_methods [kind];
10140 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10144 g_assert (array_class->rank == 1);
10145 kind = get_virtual_stelemref_kind (array_class->element_class);
10147 return get_virtual_stelemref_wrapper (kind);
10151 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10156 *nwrappers = STELEMREF_KIND_COUNT;
10157 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10158 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10159 res [i] = get_virtual_stelemref_wrapper (i);
10164 mono_marshal_get_stelemref (void)
10166 static MonoMethod* ret = NULL;
10167 MonoMethodSignature *sig;
10168 MonoMethodBuilder *mb;
10171 guint32 b1, b2, b3, b4;
10173 int aklass, vklass;
10174 int array_slot_addr;
10179 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10182 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10184 /* void stelemref (void* array, int idx, void* value) */
10185 sig->ret = &mono_defaults.void_class->byval_arg;
10186 sig->params [0] = &mono_defaults.object_class->byval_arg;
10187 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10188 sig->params [2] = &mono_defaults.object_class->byval_arg;
10190 #ifndef DISABLE_JIT
10191 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10192 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10193 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10197 <ldelema (bound check)>
10201 aklass = array->vtable->klass->element_class;
10202 vklass = value->vtable->klass;
10204 if (vklass->idepth < aklass->idepth)
10207 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10211 *array_slot_addr = value;
10215 if (mono_object_isinst (value, aklass))
10218 throw new ArrayTypeMismatchException ();
10221 /* ldelema (implicit bound check) */
10222 mono_mb_emit_ldarg (mb, 0);
10223 mono_mb_emit_ldarg (mb, 1);
10224 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10225 mono_mb_emit_stloc (mb, array_slot_addr);
10227 /* if (!value) goto do_store */
10228 mono_mb_emit_ldarg (mb, 2);
10229 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10231 /* aklass = array->vtable->klass->element_class */
10232 mono_mb_emit_ldarg (mb, 0);
10233 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10234 mono_mb_emit_byte (mb, CEE_LDIND_I);
10235 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10236 mono_mb_emit_byte (mb, CEE_LDIND_I);
10237 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10238 mono_mb_emit_byte (mb, CEE_LDIND_I);
10239 mono_mb_emit_stloc (mb, aklass);
10241 /* vklass = value->vtable->klass */
10242 mono_mb_emit_ldarg (mb, 2);
10243 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10244 mono_mb_emit_byte (mb, CEE_LDIND_I);
10245 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10246 mono_mb_emit_byte (mb, CEE_LDIND_I);
10247 mono_mb_emit_stloc (mb, vklass);
10249 /* if (vklass->idepth < aklass->idepth) goto failue */
10250 mono_mb_emit_ldloc (mb, vklass);
10251 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10252 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10254 mono_mb_emit_ldloc (mb, aklass);
10255 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10256 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10258 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10260 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10261 mono_mb_emit_ldloc (mb, vklass);
10262 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10263 mono_mb_emit_byte (mb, CEE_LDIND_I);
10265 mono_mb_emit_ldloc (mb, aklass);
10266 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10267 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10268 mono_mb_emit_icon (mb, 1);
10269 mono_mb_emit_byte (mb, CEE_SUB);
10270 mono_mb_emit_icon (mb, sizeof (void*));
10271 mono_mb_emit_byte (mb, CEE_MUL);
10272 mono_mb_emit_byte (mb, CEE_ADD);
10273 mono_mb_emit_byte (mb, CEE_LDIND_I);
10275 mono_mb_emit_ldloc (mb, aklass);
10277 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10279 copy_pos = mono_mb_get_label (mb);
10281 mono_mb_patch_branch (mb, b1);
10282 mono_mb_emit_ldloc (mb, array_slot_addr);
10283 mono_mb_emit_ldarg (mb, 2);
10284 mono_mb_emit_byte (mb, CEE_STIND_REF);
10286 mono_mb_emit_byte (mb, CEE_RET);
10289 mono_mb_patch_branch (mb, b2);
10290 mono_mb_patch_branch (mb, b3);
10292 mono_mb_emit_ldarg (mb, 2);
10293 mono_mb_emit_ldloc (mb, aklass);
10294 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10296 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10297 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10298 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10300 mono_mb_emit_byte (mb, CEE_RET);
10302 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10303 ret = mono_mb_create (mb, sig, 4, info);
10310 * mono_marshal_get_gsharedvt_in_wrapper:
10312 * This wrapper handles calls from normal code to gsharedvt code.
10315 mono_marshal_get_gsharedvt_in_wrapper (void)
10317 static MonoMethod* ret = NULL;
10318 MonoMethodSignature *sig;
10319 MonoMethodBuilder *mb;
10325 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10327 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10328 sig->ret = &mono_defaults.void_class->byval_arg;
10330 #ifndef DISABLE_JIT
10332 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10334 mono_mb_emit_byte (mb, CEE_RET);
10336 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10337 ret = mono_mb_create (mb, sig, 4, info);
10344 * mono_marshal_get_gsharedvt_out_wrapper:
10346 * This wrapper handles calls from gsharedvt code to normal code.
10349 mono_marshal_get_gsharedvt_out_wrapper (void)
10351 static MonoMethod* ret = NULL;
10352 MonoMethodSignature *sig;
10353 MonoMethodBuilder *mb;
10359 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10361 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10362 sig->ret = &mono_defaults.void_class->byval_arg;
10364 #ifndef DISABLE_JIT
10366 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10368 mono_mb_emit_byte (mb, CEE_RET);
10370 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10371 ret = mono_mb_create (mb, sig, 4, info);
10380 MonoMethod *method;
10383 /* LOCKING: vars accessed under the marshal lock */
10384 static ArrayElemAddr *elem_addr_cache = NULL;
10385 static int elem_addr_cache_size = 0;
10386 static int elem_addr_cache_next = 0;
10389 * mono_marshal_get_array_address:
10390 * \param rank rank of the array type
10391 * \param elem_size size in bytes of an element of an array.
10393 * Returns a MonoMethod that implements the code to get the address
10394 * of an element in a multi-dimenasional array of \p rank dimensions.
10395 * The returned method takes an array as the first argument and then
10396 * \p rank indexes for the \p rank dimensions.
10397 * If ELEM_SIZE is 0, read the array size from the array object.
10400 mono_marshal_get_array_address (int rank, int elem_size)
10403 MonoMethodBuilder *mb;
10404 MonoMethodSignature *sig;
10407 int i, bounds, ind, realidx;
10408 int branch_pos, *branch_positions;
10412 mono_marshal_lock ();
10413 for (i = 0; i < elem_addr_cache_next; ++i) {
10414 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10415 ret = elem_addr_cache [i].method;
10419 mono_marshal_unlock ();
10423 branch_positions = g_new0 (int, rank);
10425 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10427 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10428 sig->ret = &mono_defaults.int_class->byval_arg;
10429 sig->params [0] = &mono_defaults.object_class->byval_arg;
10430 for (i = 0; i < rank; ++i) {
10431 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10434 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10435 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10438 #ifndef DISABLE_JIT
10439 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10440 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10441 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10443 /* bounds = array->bounds; */
10444 mono_mb_emit_ldarg (mb, 0);
10445 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10446 mono_mb_emit_byte (mb, CEE_LDIND_I);
10447 mono_mb_emit_stloc (mb, bounds);
10449 /* ind is the overall element index, realidx is the partial index in a single dimension */
10450 /* ind = idx0 - bounds [0].lower_bound */
10451 mono_mb_emit_ldarg (mb, 1);
10452 mono_mb_emit_ldloc (mb, bounds);
10453 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10454 mono_mb_emit_byte (mb, CEE_ADD);
10455 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10456 mono_mb_emit_byte (mb, CEE_SUB);
10457 mono_mb_emit_stloc (mb, ind);
10458 /* if (ind >= bounds [0].length) goto exeception; */
10459 mono_mb_emit_ldloc (mb, ind);
10460 mono_mb_emit_ldloc (mb, bounds);
10461 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10462 mono_mb_emit_byte (mb, CEE_ADD);
10463 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10464 /* note that we use unsigned comparison */
10465 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10467 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10468 * We could also decide to ignore the passed elem_size and get it
10469 * from the array object, to reduce the number of methods we generate:
10470 * the additional cost is 3 memory loads and a non-immediate mul.
10472 for (i = 1; i < rank; ++i) {
10473 /* realidx = idxi - bounds [i].lower_bound */
10474 mono_mb_emit_ldarg (mb, 1 + i);
10475 mono_mb_emit_ldloc (mb, bounds);
10476 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10477 mono_mb_emit_byte (mb, CEE_ADD);
10478 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10479 mono_mb_emit_byte (mb, CEE_SUB);
10480 mono_mb_emit_stloc (mb, realidx);
10481 /* if (realidx >= bounds [i].length) goto exeception; */
10482 mono_mb_emit_ldloc (mb, realidx);
10483 mono_mb_emit_ldloc (mb, bounds);
10484 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10485 mono_mb_emit_byte (mb, CEE_ADD);
10486 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10487 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10488 /* ind = ind * bounds [i].length + realidx */
10489 mono_mb_emit_ldloc (mb, ind);
10490 mono_mb_emit_ldloc (mb, bounds);
10491 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10492 mono_mb_emit_byte (mb, CEE_ADD);
10493 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10494 mono_mb_emit_byte (mb, CEE_MUL);
10495 mono_mb_emit_ldloc (mb, realidx);
10496 mono_mb_emit_byte (mb, CEE_ADD);
10497 mono_mb_emit_stloc (mb, ind);
10500 /* return array->vector + ind * element_size */
10501 mono_mb_emit_ldarg (mb, 0);
10502 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10503 mono_mb_emit_ldloc (mb, ind);
10505 mono_mb_emit_icon (mb, elem_size);
10507 /* Load arr->vtable->klass->sizes.element_class */
10508 mono_mb_emit_ldarg (mb, 0);
10509 mono_mb_emit_byte (mb, CEE_CONV_I);
10510 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10511 mono_mb_emit_byte (mb, CEE_ADD);
10512 mono_mb_emit_byte (mb, CEE_LDIND_I);
10513 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10514 mono_mb_emit_byte (mb, CEE_ADD);
10515 mono_mb_emit_byte (mb, CEE_LDIND_I);
10516 /* sizes is an union, so this reads sizes.element_size */
10517 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10518 mono_mb_emit_byte (mb, CEE_ADD);
10519 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10521 mono_mb_emit_byte (mb, CEE_MUL);
10522 mono_mb_emit_byte (mb, CEE_ADD);
10523 mono_mb_emit_byte (mb, CEE_RET);
10525 /* patch the branches to get here and throw */
10526 for (i = 1; i < rank; ++i) {
10527 mono_mb_patch_branch (mb, branch_positions [i]);
10529 mono_mb_patch_branch (mb, branch_pos);
10530 /* throw exception */
10531 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10533 g_free (branch_positions);
10534 #endif /* DISABLE_JIT */
10536 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10537 info->d.element_addr.rank = rank;
10538 info->d.element_addr.elem_size = elem_size;
10539 ret = mono_mb_create (mb, sig, 4, info);
10542 /* cache the result */
10544 mono_marshal_lock ();
10545 for (i = 0; i < elem_addr_cache_next; ++i) {
10546 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10547 /* FIXME: free ret */
10548 ret = elem_addr_cache [i].method;
10554 if (elem_addr_cache_next >= elem_addr_cache_size) {
10555 int new_size = elem_addr_cache_size + 4;
10556 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10557 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10558 g_free (elem_addr_cache);
10559 elem_addr_cache = new_array;
10560 elem_addr_cache_size = new_size;
10562 elem_addr_cache [elem_addr_cache_next].rank = rank;
10563 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10564 elem_addr_cache [elem_addr_cache_next].method = ret;
10565 elem_addr_cache_next ++;
10567 mono_marshal_unlock ();
10572 * mono_marshal_get_array_accessor_wrapper:
10574 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10577 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10579 MonoMethodSignature *sig;
10580 MonoMethodBuilder *mb;
10584 MonoGenericContext *ctx = NULL;
10585 MonoMethod *orig_method = NULL;
10586 MonoGenericContainer *container = NULL;
10590 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10591 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10592 * FIXME: Use generic methods.
10599 g_assert_not_reached ();
10601 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10602 if ((res = mono_marshal_find_in_cache (cache, method)))
10606 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10609 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10611 #ifndef DISABLE_JIT
10612 /* Call the method */
10614 mono_mb_emit_ldarg (mb, 0);
10615 for (i = 0; i < sig->param_count; i++)
10616 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10620 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10621 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10623 mono_mb_emit_managed_call (mb, method, NULL);
10625 mono_mb_emit_byte (mb, CEE_RET);
10628 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10629 info->d.array_accessor.method = method;
10633 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10634 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10636 res = mono_mb_create_and_cache_full (cache, method,
10637 mb, sig, sig->param_count + 16,
10646 static inline void*
10647 mono_marshal_alloc_co_task_mem (size_t size)
10649 if ((gulong)size == 0)
10650 /* This returns a valid pointer for size 0 on MS.NET */
10653 return g_try_malloc ((gulong)size);
10658 mono_marshal_alloc (gulong size, MonoError *error)
10662 error_init (error);
10664 res = mono_marshal_alloc_co_task_mem (size);
10666 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10671 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10673 ves_icall_marshal_alloc (gulong size)
10676 void *ret = mono_marshal_alloc (size, &error);
10677 if (!mono_error_ok (&error)) {
10678 mono_error_set_pending_exception (&error);
10687 mono_marshal_free_co_task_mem (void *ptr)
10695 mono_marshal_free (gpointer ptr)
10697 mono_marshal_free_co_task_mem (ptr);
10701 mono_marshal_free_array (gpointer *ptr, int size)
10708 for (i = 0; i < size; i++)
10714 mono_marshal_string_to_utf16 (MonoString *s)
10716 return s ? mono_string_chars (s) : NULL;
10719 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10721 mono_marshal_string_to_utf16_copy (MonoString *s)
10727 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10728 if (!mono_error_ok (&error)) {
10729 mono_error_set_pending_exception (&error);
10732 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10733 res [mono_string_length (s)] = 0;
10739 * mono_marshal_set_last_error:
10741 * This function is invoked to set the last error value from a P/Invoke call
10742 * which has SetLastError set.
10745 mono_marshal_set_last_error (void)
10748 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10750 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10755 mono_marshal_set_last_error_windows (int error)
10758 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10763 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10764 gpointer dest, gint32 length)
10769 MONO_CHECK_ARG_NULL (src,);
10770 MONO_CHECK_ARG_NULL (dest,);
10772 if (src->obj.vtable->klass->rank != 1) {
10773 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10776 if (start_index < 0) {
10777 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10781 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10784 if (start_index + length > mono_array_length (src)) {
10785 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10789 element_size = mono_array_element_size (src->obj.vtable->klass);
10791 /* no references should be involved */
10792 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10794 memcpy (dest, source_addr, length * element_size);
10798 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10799 MonoArray *dest, gint32 length)
10804 MONO_CHECK_ARG_NULL (src,);
10805 MONO_CHECK_ARG_NULL (dest,);
10807 if (dest->obj.vtable->klass->rank != 1) {
10808 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10811 if (start_index < 0) {
10812 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10816 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10819 if (start_index + length > mono_array_length (dest)) {
10820 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10823 element_size = mono_array_element_size (dest->obj.vtable->klass);
10825 /* no references should be involved */
10826 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10828 memcpy (dest_addr, src, length * element_size);
10832 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10837 return mono_string_new (mono_domain_get (), ptr);
10841 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10844 MonoString *result = NULL;
10845 error_init (&error);
10847 mono_error_set_argument_null (&error, "ptr", "");
10849 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10850 mono_error_set_pending_exception (&error);
10855 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10858 MonoString *res = NULL;
10859 MonoDomain *domain = mono_domain_get ();
10869 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10870 if (!mono_error_ok (&error)) {
10871 mono_error_set_pending_exception (&error);
10878 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10881 MonoString *res = NULL;
10882 MonoDomain *domain = mono_domain_get ();
10884 error_init (&error);
10888 mono_error_set_argument_null (&error, "ptr", "");
10890 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10893 if (!mono_error_ok (&error))
10894 mono_error_set_pending_exception (&error);
10899 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10901 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10905 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10911 MONO_CHECK_ARG_NULL (rtype, 0);
10913 type = rtype->type;
10914 klass = mono_class_from_mono_type (type);
10915 if (!mono_class_init (klass)) {
10916 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10920 layout = (mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK);
10922 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10923 return sizeof (gpointer);
10924 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10926 MonoException *exc;
10928 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10929 exc = mono_get_exception_argument ("t", msg);
10931 mono_set_pending_exception (exc);
10935 return mono_class_native_size (klass, NULL);
10939 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10942 MonoMethod *method;
10945 MONO_CHECK_ARG_NULL (obj,);
10946 MONO_CHECK_ARG_NULL (dst,);
10948 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10952 pa [2] = &delete_old;
10954 mono_runtime_invoke_checked (method, NULL, pa, &error);
10955 if (!mono_error_ok (&error))
10956 mono_error_set_pending_exception (&error);
10960 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10962 MonoMethod *method;
10965 error_init (error);
10967 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10972 mono_runtime_invoke_checked (method, NULL, pa, error);
10976 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10981 MONO_CHECK_ARG_NULL (src,);
10982 MONO_CHECK_ARG_NULL (dst,);
10984 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10986 if (t->type == MONO_TYPE_VALUETYPE) {
10987 MonoException *exc;
10990 tmp = g_strdup_printf ("Destination is a boxed value type.");
10991 exc = mono_get_exception_argument ("dst", tmp);
10994 mono_set_pending_exception (exc);
10998 ptr_to_structure (src, dst, &error);
10999 if (!mono_error_ok (&error))
11000 mono_error_set_pending_exception (&error);
11004 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
11008 MonoDomain *domain = mono_domain_get ();
11013 MONO_CHECK_ARG_NULL (type, NULL);
11015 klass = mono_class_from_mono_type (type->type);
11016 if (!mono_class_init (klass)) {
11017 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11021 res = mono_object_new_checked (domain, klass, &error);
11022 if (!mono_error_ok (&error)) {
11023 mono_error_set_pending_exception (&error);
11027 ptr_to_structure (src, res, &error);
11028 if (!mono_error_ok (&error)) {
11029 mono_error_set_pending_exception (&error);
11037 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
11040 MonoMarshalType *info;
11043 int match_index = -1;
11045 MONO_CHECK_ARG_NULL (type, 0);
11046 MONO_CHECK_ARG_NULL (field_name, 0);
11048 fname = mono_string_to_utf8_checked (field_name, &error);
11049 if (mono_error_set_pending_exception (&error))
11051 klass = mono_class_from_mono_type (type->type);
11052 if (!mono_class_init (klass)) {
11053 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11057 while (klass && match_index == -1) {
11058 MonoClassField* field;
11060 gpointer iter = NULL;
11061 while ((field = mono_class_get_fields (klass, &iter))) {
11062 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11064 if (!strcmp (fname, mono_field_get_name (field))) {
11071 if (match_index == -1)
11072 klass = klass->parent;
11077 if(match_index == -1) {
11078 MonoException* exc;
11081 /* Get back original class instance */
11082 klass = mono_class_from_mono_type (type->type);
11084 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
11085 exc = mono_get_exception_argument ("fieldName", tmp);
11088 mono_set_pending_exception ((MonoException*)exc);
11092 info = mono_marshal_load_type_info (klass);
11093 return info->fields [match_index].offset;
11098 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11101 char *ret = mono_string_to_utf8_checked (string, &error);
11102 mono_error_set_pending_exception (&error);
11107 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11109 if (string == NULL)
11112 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
11114 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11115 res [mono_string_length (string)] = 0;
11119 #endif /* !HOST_WIN32 */
11122 mono_struct_delete_old (MonoClass *klass, char *ptr)
11124 MonoMarshalType *info;
11127 info = mono_marshal_load_type_info (klass);
11129 for (i = 0; i < info->num_fields; i++) {
11130 MonoMarshalConv conv;
11131 MonoType *ftype = info->fields [i].field->type;
11134 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11137 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11138 klass->unicode, &conv);
11140 cpos = ptr + info->fields [i].offset;
11143 case MONO_MARSHAL_CONV_NONE:
11144 if (MONO_TYPE_ISSTRUCT (ftype)) {
11145 mono_struct_delete_old (ftype->data.klass, cpos);
11149 case MONO_MARSHAL_CONV_STR_LPWSTR:
11150 /* We assume this field points inside a MonoString */
11152 case MONO_MARSHAL_CONV_STR_LPTSTR:
11153 #ifdef TARGET_WIN32
11154 /* We assume this field points inside a MonoString
11158 case MONO_MARSHAL_CONV_STR_LPSTR:
11159 case MONO_MARSHAL_CONV_STR_BSTR:
11160 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11161 case MONO_MARSHAL_CONV_STR_TBSTR:
11162 case MONO_MARSHAL_CONV_STR_UTF8STR:
11163 mono_marshal_free (*(gpointer *)cpos);
11173 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11177 MONO_CHECK_ARG_NULL (src,);
11178 MONO_CHECK_ARG_NULL (type,);
11180 klass = mono_class_from_mono_type (type->type);
11181 if (!mono_class_init (klass)) {
11182 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11186 mono_struct_delete_old (klass, (char *)src);
11190 static inline void *
11191 mono_marshal_alloc_hglobal (size_t size)
11193 return g_try_malloc (size);
11198 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11201 size_t s = (size_t)size;
11204 /* This returns a valid pointer for size 0 on MS.NET */
11207 res = mono_marshal_alloc_hglobal (s);
11210 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11218 static inline gpointer
11219 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11221 return g_try_realloc (ptr, size);
11226 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11229 size_t s = (size_t)size;
11232 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11236 res = mono_marshal_realloc_hglobal (ptr, s);
11239 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11248 mono_marshal_free_hglobal (gpointer ptr)
11256 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11258 mono_marshal_free_hglobal (ptr);
11262 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11264 void *res = mono_marshal_alloc_co_task_mem (size);
11267 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11274 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11276 void *res = mono_marshal_alloc_co_task_mem (size);
11279 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11286 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11288 mono_marshal_free_co_task_mem (ptr);
11293 static inline gpointer
11294 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11296 return g_try_realloc (ptr, (gulong)size);
11301 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11303 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11306 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11313 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11315 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11319 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11321 MonoClass *klass = mono_type_get_class (type->type);
11322 if (!mono_class_init (klass)) {
11323 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11327 return mono_ftnptr_to_delegate (klass, ftn);
11331 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11333 return mono_delegate_to_ftnptr (delegate);
11337 * mono_marshal_is_loading_type_info:
11339 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11343 mono_marshal_is_loading_type_info (MonoClass *klass)
11345 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11347 return g_slist_find (loads_list, klass) != NULL;
11351 * mono_marshal_load_type_info:
11353 * Initialize klass::marshal_info using information from metadata. This function can
11354 * recursively call itself, and the caller is responsible to avoid that by calling
11355 * mono_marshal_is_loading_type_info () beforehand.
11357 * LOCKING: Acquires the loader lock.
11360 mono_marshal_load_type_info (MonoClass* klass)
11363 guint32 native_size = 0, min_align = 1, packing;
11364 MonoMarshalType *info;
11365 MonoClassField* field;
11368 GSList *loads_list;
11370 g_assert (klass != NULL);
11372 info = mono_class_get_marshal_info (klass);
11376 if (!klass->inited)
11377 mono_class_init (klass);
11379 info = mono_class_get_marshal_info (klass);
11384 * This function can recursively call itself, so we keep the list of classes which are
11385 * under initialization in a TLS list.
11387 g_assert (!mono_marshal_is_loading_type_info (klass));
11388 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11389 loads_list = g_slist_prepend (loads_list, klass);
11390 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11393 while ((field = mono_class_get_fields (klass, &iter))) {
11394 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11396 if (mono_field_is_deleted (field))
11401 layout = mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK;
11403 /* The mempool is protected by the loader lock */
11404 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11405 info->num_fields = count;
11407 /* Try to find a size for this type in metadata */
11408 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11410 if (klass->parent) {
11411 int parent_size = mono_class_native_size (klass->parent, NULL);
11413 /* Add parent size to real size */
11414 native_size += parent_size;
11415 info->native_size = parent_size;
11418 packing = klass->packing_size ? klass->packing_size : 8;
11421 while ((field = mono_class_get_fields (klass, &iter))) {
11425 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11428 if (mono_field_is_deleted (field))
11430 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11431 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11432 NULL, NULL, &info->fields [j].mspec);
11434 info->fields [j].field = field;
11436 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11437 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11438 /* This field is a hack inserted by MCS to empty structures */
11443 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11444 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11445 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11446 &align, TRUE, klass->unicode);
11447 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11448 min_align = MAX (align, min_align);
11449 info->fields [j].offset = info->native_size;
11450 info->fields [j].offset += align - 1;
11451 info->fields [j].offset &= ~(align - 1);
11452 info->native_size = info->fields [j].offset + size;
11454 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11455 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11456 &align, TRUE, klass->unicode);
11457 min_align = MAX (align, min_align);
11458 info->fields [j].offset = field->offset - sizeof (MonoObject);
11459 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11465 if (klass->byval_arg.type == MONO_TYPE_PTR)
11466 info->native_size = sizeof (gpointer);
11468 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11469 info->native_size = MAX (native_size, info->native_size);
11471 * If the provided Size is equal or larger than the calculated size, and there
11472 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11474 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11475 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11478 min_align = MIN (min_align, packing);
11482 if (info->native_size & (min_align - 1)) {
11483 info->native_size += min_align - 1;
11484 info->native_size &= ~(min_align - 1);
11487 info->min_align = min_align;
11489 /* Update the class's blittable info, if the layouts don't match */
11490 if (info->native_size != mono_class_value_size (klass, NULL))
11491 klass->blittable = FALSE;
11493 /* If this is an array type, ensure that we have element info */
11494 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11495 mono_marshal_load_type_info (klass->element_class);
11498 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11499 loads_list = g_slist_remove (loads_list, klass);
11500 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11502 mono_marshal_lock ();
11503 MonoMarshalType *info2 = mono_class_get_marshal_info (klass);
11505 /*We do double-checking locking on marshal_info */
11506 mono_memory_barrier ();
11507 mono_class_set_marshal_info (klass, info);
11508 ++class_marshal_info_count;
11511 mono_marshal_unlock ();
11517 * mono_class_native_size:
11518 * \param klass a class
11519 * \returns the native size of an object instance (when marshaled
11520 * to unmanaged code)
11523 mono_class_native_size (MonoClass *klass, guint32 *align)
11525 MonoMarshalType *info = mono_class_get_marshal_info (klass);
11527 if (mono_marshal_is_loading_type_info (klass)) {
11532 mono_marshal_load_type_info (klass);
11534 info = mono_class_get_marshal_info (klass);
11538 *align = info->min_align;
11540 return info->native_size;
11544 * mono_type_native_stack_size:
11545 * @t: the type to return the size it uses on the stack
11547 * Returns: the number of bytes required to hold an instance of this
11548 * type on the native stack
11551 mono_type_native_stack_size (MonoType *t, guint32 *align)
11555 g_assert (t != NULL);
11561 *align = sizeof (gpointer);
11562 return sizeof (gpointer);
11566 case MONO_TYPE_BOOLEAN:
11567 case MONO_TYPE_CHAR:
11578 case MONO_TYPE_STRING:
11579 case MONO_TYPE_OBJECT:
11580 case MONO_TYPE_CLASS:
11581 case MONO_TYPE_SZARRAY:
11582 case MONO_TYPE_PTR:
11583 case MONO_TYPE_FNPTR:
11584 case MONO_TYPE_ARRAY:
11585 *align = sizeof (gpointer);
11586 return sizeof (gpointer);
11591 *align = MONO_ABI_ALIGNOF (double);
11595 *align = MONO_ABI_ALIGNOF (gint64);
11597 case MONO_TYPE_GENERICINST:
11598 if (!mono_type_generic_inst_is_valuetype (t)) {
11599 *align = sizeof (gpointer);
11600 return sizeof (gpointer);
11603 case MONO_TYPE_TYPEDBYREF:
11604 case MONO_TYPE_VALUETYPE: {
11606 MonoClass *klass = mono_class_from_mono_type (t);
11608 if (klass->enumtype)
11609 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11611 size = mono_class_native_size (klass, align);
11612 *align = *align + 3;
11622 g_error ("type 0x%02x unknown", t->type);
11628 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11629 gboolean as_field, gboolean unicode)
11631 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11634 switch (native_type) {
11635 case MONO_NATIVE_BOOLEAN:
11638 case MONO_NATIVE_I1:
11639 case MONO_NATIVE_U1:
11642 case MONO_NATIVE_I2:
11643 case MONO_NATIVE_U2:
11644 case MONO_NATIVE_VARIANTBOOL:
11647 case MONO_NATIVE_I4:
11648 case MONO_NATIVE_U4:
11649 case MONO_NATIVE_ERROR:
11652 case MONO_NATIVE_I8:
11653 case MONO_NATIVE_U8:
11654 *align = MONO_ABI_ALIGNOF (gint64);
11656 case MONO_NATIVE_R4:
11659 case MONO_NATIVE_R8:
11660 *align = MONO_ABI_ALIGNOF (double);
11662 case MONO_NATIVE_INT:
11663 case MONO_NATIVE_UINT:
11664 case MONO_NATIVE_LPSTR:
11665 case MONO_NATIVE_LPWSTR:
11666 case MONO_NATIVE_LPTSTR:
11667 case MONO_NATIVE_BSTR:
11668 case MONO_NATIVE_ANSIBSTR:
11669 case MONO_NATIVE_TBSTR:
11670 case MONO_NATIVE_UTF8STR:
11671 case MONO_NATIVE_LPARRAY:
11672 case MONO_NATIVE_SAFEARRAY:
11673 case MONO_NATIVE_IUNKNOWN:
11674 case MONO_NATIVE_IDISPATCH:
11675 case MONO_NATIVE_INTERFACE:
11676 case MONO_NATIVE_ASANY:
11677 case MONO_NATIVE_FUNC:
11678 case MONO_NATIVE_LPSTRUCT:
11679 *align = MONO_ABI_ALIGNOF (gpointer);
11680 return sizeof (gpointer);
11681 case MONO_NATIVE_STRUCT:
11682 klass = mono_class_from_mono_type (type);
11683 if (klass == mono_defaults.object_class &&
11684 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11688 return mono_class_native_size (klass, align);
11689 case MONO_NATIVE_BYVALTSTR: {
11690 int esize = unicode ? 2: 1;
11693 return mspec->data.array_data.num_elem * esize;
11695 case MONO_NATIVE_BYVALARRAY: {
11696 // FIXME: Have to consider ArraySubType
11698 klass = mono_class_from_mono_type (type);
11699 if (klass->element_class == mono_defaults.char_class) {
11700 esize = unicode ? 2 : 1;
11703 esize = mono_class_native_size (klass->element_class, align);
11706 return mspec->data.array_data.num_elem * esize;
11708 case MONO_NATIVE_CUSTOM:
11709 *align = sizeof (gpointer);
11710 return sizeof (gpointer);
11712 case MONO_NATIVE_CURRENCY:
11713 case MONO_NATIVE_VBBYREFSTR:
11715 g_error ("native type %02x not implemented", native_type);
11718 g_assert_not_reached ();
11722 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11724 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11733 t = &o->vtable->klass->byval_arg;
11737 case MONO_TYPE_PTR:
11740 case MONO_TYPE_BOOLEAN:
11743 case MONO_TYPE_CHAR:
11748 return mono_object_unbox (o);
11750 case MONO_TYPE_STRING:
11751 switch (string_encoding) {
11752 case MONO_NATIVE_LPWSTR:
11753 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11754 case MONO_NATIVE_LPSTR:
11755 case MONO_NATIVE_UTF8STR:
11756 // Same code path, because in Mono, we treated strings as Utf8
11757 return mono_string_to_utf8str ((MonoString*)o);
11759 g_warning ("marshaling conversion %d not implemented", string_encoding);
11760 g_assert_not_reached ();
11763 case MONO_TYPE_CLASS:
11764 case MONO_TYPE_VALUETYPE: {
11765 MonoMethod *method;
11768 MonoBoolean delete_old = FALSE;
11770 klass = t->data.klass;
11772 if (mono_class_is_auto_layout (klass))
11775 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11776 return mono_object_unbox (o);
11778 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11779 if (!mono_error_ok (&error)) {
11780 mono_error_set_pending_exception (&error);
11784 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11785 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11789 pa [2] = &delete_old;
11791 mono_runtime_invoke_checked (method, NULL, pa, &error);
11792 if (!mono_error_ok (&error)) {
11793 mono_error_set_pending_exception (&error);
11803 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11807 /* This is a JIT icall, it sets the pending exception */
11809 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11818 t = &o->vtable->klass->byval_arg;
11820 case MONO_TYPE_STRING:
11821 switch (string_encoding) {
11822 case MONO_NATIVE_LPWSTR:
11823 case MONO_NATIVE_LPSTR:
11824 case MONO_NATIVE_UTF8STR:
11825 mono_marshal_free (ptr);
11828 g_warning ("marshaling conversion %d not implemented", string_encoding);
11829 g_assert_not_reached ();
11832 case MONO_TYPE_CLASS:
11833 case MONO_TYPE_VALUETYPE: {
11834 klass = t->data.klass;
11836 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11839 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11840 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11846 mono_runtime_invoke_checked (method, NULL, pa, &error);
11847 if (!mono_error_ok (&error)) {
11848 mono_error_set_pending_exception (&error);
11853 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11854 mono_struct_delete_old (klass, (char *)ptr);
11857 mono_marshal_free (ptr);
11866 * mono_marshal_get_generic_array_helper:
11868 * Return a wrapper which is used to implement the implicit interfaces on arrays.
11869 * The wrapper routes calls to METHOD, which is one of the InternalArray_ methods in Array.
11872 mono_marshal_get_generic_array_helper (MonoClass *klass, gchar *name, MonoMethod *method)
11874 MonoMethodSignature *sig, *csig;
11875 MonoMethodBuilder *mb;
11880 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11881 mb->method->slot = -1;
11883 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11884 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11886 sig = mono_method_signature (method);
11887 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11888 csig->generic_param_count = 0;
11890 #ifndef DISABLE_JIT
11891 mono_mb_emit_ldarg (mb, 0);
11892 for (i = 0; i < csig->param_count; i++)
11893 mono_mb_emit_ldarg (mb, i + 1);
11894 mono_mb_emit_managed_call (mb, method, NULL);
11895 mono_mb_emit_byte (mb, CEE_RET);
11897 /* We can corlib internal methods */
11898 mb->skip_visibility = TRUE;
11900 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11901 info->d.generic_array_helper.method = method;
11902 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11910 * The mono_win32_compat_* functions are implementations of inline
11911 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11912 * although not exported by kernel32.
11914 * We map the appropiate kernel32 entries to these functions using
11915 * dllmaps declared in the global etc/mono/config.
11919 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11921 if (!dest || !source)
11924 memcpy (dest, source, length);
11928 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11930 memset (dest, fill, length);
11934 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11936 if (!dest || !source)
11939 memmove (dest, source, length);
11943 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11945 memset (dest, 0, length);
11949 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11954 for (i = 0; i < len; ++i)
11958 g_assert (i < len);
11961 while (byte && !(byte & 1))
11963 g_assert (byte == 1);
11966 *bitmask = buf [i];
11970 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11972 MonoMethodBuilder *mb;
11973 MonoMethodSignature *sig, *csig;
11974 MonoExceptionClause *clause;
11979 int i, param_count, sig_size, pos_leave;
11983 // FIXME: we need to store the exception into a MonoHandle
11984 g_assert (!mono_threads_is_coop_enabled ());
11986 klass = method->klass;
11987 image = method->klass->image;
11989 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11991 if ((res = mono_marshal_find_in_cache (cache, method)))
11994 sig = mono_method_signature (method);
11995 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11997 /* add "this" and exception param */
11998 param_count = sig->param_count + sig->hasthis + 1;
12000 /* dup & extend signature */
12001 csig = mono_metadata_signature_alloc (image, param_count);
12002 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
12003 memcpy (csig, sig, sig_size);
12004 csig->param_count = param_count;
12007 csig->call_convention = MONO_CALL_DEFAULT;
12009 if (sig->hasthis) {
12011 csig->params [0] = &klass->byval_arg;
12012 /* move params up by one */
12013 for (i = 0; i < sig->param_count; i++)
12014 csig->params [i + 1] = sig->params [i];
12017 /* setup exception param as byref+[out] */
12018 csig->params [param_count - 1] = mono_metadata_type_dup (image,
12019 &mono_defaults.exception_class->byval_arg);
12020 csig->params [param_count - 1]->byref = 1;
12021 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12023 /* convert struct return to object */
12024 if (MONO_TYPE_ISSTRUCT (sig->ret))
12025 csig->ret = &mono_defaults.object_class->byval_arg;
12027 #ifndef DISABLE_JIT
12028 /* local 0 (temp for exception object) */
12029 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12031 /* local 1 (temp for result) */
12032 if (!MONO_TYPE_IS_VOID (sig->ret))
12033 mono_mb_add_local (mb, sig->ret);
12035 /* clear exception arg */
12036 mono_mb_emit_ldarg (mb, param_count - 1);
12037 mono_mb_emit_byte (mb, CEE_LDNULL);
12038 mono_mb_emit_byte (mb, CEE_STIND_REF);
12041 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12042 clause->try_offset = mono_mb_get_label (mb);
12044 /* push method's args */
12045 for (i = 0; i < param_count - 1; i++) {
12049 mono_mb_emit_ldarg (mb, i);
12051 /* get the byval type of the param */
12052 klass = mono_class_from_mono_type (csig->params [i]);
12053 type = &klass->byval_arg;
12055 /* unbox struct args */
12056 if (MONO_TYPE_ISSTRUCT (type)) {
12057 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12059 /* byref args & and the "this" arg must remain a ptr.
12060 Otherwise make a copy of the value type */
12061 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12062 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12064 csig->params [i] = &mono_defaults.object_class->byval_arg;
12069 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12070 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12072 mono_mb_emit_op (mb, CEE_CALL, method);
12074 /* save result at local 1 */
12075 if (!MONO_TYPE_IS_VOID (sig->ret))
12076 mono_mb_emit_stloc (mb, 1);
12078 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12081 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12082 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12083 clause->data.catch_class = mono_defaults.object_class;
12085 clause->handler_offset = mono_mb_get_label (mb);
12087 /* store exception at local 0 */
12088 mono_mb_emit_stloc (mb, 0);
12089 mono_mb_emit_ldarg (mb, param_count - 1);
12090 mono_mb_emit_ldloc (mb, 0);
12091 mono_mb_emit_byte (mb, CEE_STIND_REF);
12092 mono_mb_emit_branch (mb, CEE_LEAVE);
12094 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12096 mono_mb_set_clauses (mb, 1, clause);
12098 mono_mb_patch_branch (mb, pos_leave);
12101 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12102 mono_mb_emit_ldloc (mb, 1);
12104 /* box the return value */
12105 if (MONO_TYPE_ISSTRUCT (sig->ret))
12106 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12109 mono_mb_emit_byte (mb, CEE_RET);
12112 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12119 * mono_marshal_free_dynamic_wrappers:
12121 * Free wrappers of the dynamic method METHOD.
12124 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12126 MonoImage *image = method->klass->image;
12128 g_assert (method_is_dynamic (method));
12130 /* This could be called during shutdown */
12131 if (marshal_mutex_initialized)
12132 mono_marshal_lock ();
12134 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12135 * they could be shared with other methods ?
12137 if (image->wrapper_caches.runtime_invoke_direct_cache)
12138 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
12139 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12140 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12141 // FIXME: Need to clear the caches in other images as well
12142 if (image->delegate_bound_static_invoke_cache)
12143 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12145 if (marshal_mutex_initialized)
12146 mono_marshal_unlock ();
12150 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12152 g_assert (ftnptr_eh_callback);
12153 ftnptr_eh_callback (gchandle);
12157 ftnptr_eh_callback_default (guint32 gchandle)
12159 MonoException *exc;
12160 gpointer stackdata;
12162 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12164 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12166 mono_gchandle_free (gchandle);
12168 mono_raise_exception (exc);
12172 * mono_install_ftnptr_eh_callback:
12174 * Install a callback that should be called when there is a managed exception
12175 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12176 * managed exception to a native exception, to properly unwind the native
12177 * stack; this native exception will then be converted back to a managed
12178 * exception in their managed-to-native wrapper.
12181 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12183 ftnptr_eh_callback = callback;
12186 static MonoThreadInfo*
12187 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12189 MonoThreadInfo *info = mono_thread_info_current ();
12191 mono_stack_mark_init (info, stackmark);
12192 error_init (error);
12197 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12199 mono_stack_mark_pop (info, stackmark);
12200 if (G_UNLIKELY (!is_ok (error)))
12201 mono_error_set_pending_exception (error);