2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #include "metadata/marshal.h"
23 #include "metadata/method-builder.h"
24 #include "metadata/tabledefs.h"
25 #include "metadata/exception.h"
26 #include "metadata/appdomain.h"
27 #include "mono/metadata/abi-details.h"
28 #include "mono/metadata/debug-helpers.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/class-internals.h"
32 #include "mono/metadata/metadata-internals.h"
33 #include "mono/metadata/domain-internals.h"
34 #include "mono/metadata/gc-internals.h"
35 #include "mono/metadata/threads-types.h"
36 #include "mono/metadata/string-icalls.h"
37 #include "mono/metadata/attrdefs.h"
38 #include "mono/metadata/gc-internals.h"
39 #include "mono/metadata/cominterop.h"
40 #include "mono/metadata/remoting.h"
41 #include "mono/metadata/reflection-internals.h"
42 #include "mono/metadata/threadpool-ms.h"
43 #include "mono/utils/mono-counters.h"
44 #include "mono/utils/mono-tls.h"
45 #include "mono/utils/mono-memory-model.h"
46 #include "mono/utils/atomic.h"
47 #include <mono/utils/mono-threads.h>
48 #include <mono/utils/mono-threads-coop.h>
49 #include <mono/utils/mono-error-internals.h>
54 /* #define DEBUG_RUNTIME_CODE */
56 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
60 #include "mono/cil/opcode.def"
66 * This mutex protects the various marshalling related caches in MonoImage
67 * and a few other data structures static to this file.
69 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
70 * runtime locking latice. Which means it can take simple locks suck as the image lock.
72 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
73 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
74 static mono_mutex_t marshal_mutex;
75 static gboolean marshal_mutex_initialized;
77 static MonoNativeTlsKey last_error_tls_id;
79 static MonoNativeTlsKey load_type_info_tls_id;
81 static gboolean use_aot_wrappers;
83 static void ftnptr_eh_callback_default (guint32 gchandle);
85 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
88 delegate_hash_table_add (MonoDelegate *d);
91 delegate_hash_table_remove (MonoDelegate *d);
94 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
97 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
100 mono_struct_delete_old (MonoClass *klass, char *ptr);
103 mono_marshal_string_to_utf16 (MonoString *s);
106 mono_marshal_string_to_utf16_copy (MonoString *s);
109 mono_string_to_lpstr (MonoString *string_obj);
111 static MonoStringBuilder *
112 mono_string_utf8_to_builder2 (char *text);
114 static MonoStringBuilder *
115 mono_string_utf16_to_builder2 (gunichar2 *text);
118 mono_string_new_len_wrapper (const char *text, guint length);
121 mono_string_from_byvalstr (const char *data, int len);
124 mono_string_from_byvalwstr (gunichar2 *data, int len);
127 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
130 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
133 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
136 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
138 static MonoAsyncResult *
139 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
142 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
145 mono_marshal_set_last_error_windows (int error);
148 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
150 static void init_safe_handle (void);
153 ves_icall_marshal_alloc (gulong size);
156 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
159 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
162 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
165 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
168 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
171 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
174 mono_delegate_to_ftnptr (MonoDelegate *delegate);
177 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
180 mono_array_to_savearray (MonoArray *array);
183 mono_array_to_lparray (MonoArray *array);
186 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
189 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
192 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
195 mono_array_to_savearray (MonoArray *array);
198 mono_array_to_lparray (MonoArray *array);
201 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
204 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
206 /* Lazy class loading functions */
207 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
208 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
209 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
210 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
212 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
213 static MonoMethod *sh_dangerous_add_ref;
214 static MonoMethod *sh_dangerous_release;
219 sh_dangerous_add_ref = mono_class_get_method_from_name (
220 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
221 sh_dangerous_release = mono_class_get_method_from_name (
222 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
226 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
228 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
230 mono_register_jit_icall (func, name, sig, no_wrapper);
234 mono_signature_no_pinvoke (MonoMethod *method)
236 MonoMethodSignature *sig = mono_method_signature (method);
238 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
239 sig->pinvoke = FALSE;
246 mono_marshal_init_tls (void)
248 mono_native_tls_alloc (&last_error_tls_id, NULL);
249 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
253 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
256 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
257 mono_error_set_pending_exception (&error);
262 ves_icall_mono_string_from_utf16 (gunichar2 *data)
265 MonoString *result = mono_string_from_utf16_checked (data, &error);
266 mono_error_set_pending_exception (&error);
271 ves_icall_mono_string_to_utf8 (MonoString *str)
274 char *result = mono_string_to_utf8_checked (str, &error);
275 mono_error_set_pending_exception (&error);
280 mono_marshal_init (void)
282 static gboolean module_initialized = FALSE;
284 if (!module_initialized) {
285 module_initialized = TRUE;
286 mono_os_mutex_init_recursive (&marshal_mutex);
287 marshal_mutex_initialized = TRUE;
289 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
290 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
291 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
292 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
293 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
294 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
295 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
296 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
297 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
298 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
299 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
300 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
301 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
302 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
303 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
304 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
305 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
306 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
307 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
308 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
309 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
310 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
311 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
312 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
313 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
314 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
315 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
316 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
317 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
318 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
319 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
320 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
321 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
322 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
323 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
324 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
325 register_icall (g_free, "g_free", "void ptr", FALSE);
326 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
327 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
328 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
329 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
330 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
331 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
332 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
333 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
334 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
335 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
336 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
337 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
338 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
339 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
340 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
342 mono_cominterop_init ();
343 mono_remoting_init ();
348 mono_marshal_cleanup (void)
350 mono_cominterop_cleanup ();
352 mono_native_tls_free (load_type_info_tls_id);
353 mono_native_tls_free (last_error_tls_id);
354 mono_os_mutex_destroy (&marshal_mutex);
355 marshal_mutex_initialized = FALSE;
359 mono_marshal_lock_internal (void)
361 mono_marshal_lock ();
365 mono_marshal_unlock_internal (void)
367 mono_marshal_unlock ();
370 /* This is a JIT icall, it sets the pending exception and return NULL on error */
372 mono_delegate_to_ftnptr (MonoDelegate *delegate)
375 MonoMethod *method, *wrapper;
377 uint32_t target_handle = 0;
382 if (delegate->delegate_trampoline)
383 return delegate->delegate_trampoline;
385 klass = ((MonoObject *)delegate)->vtable->klass;
386 g_assert (klass->delegate);
388 method = delegate->method;
389 if (delegate->method_is_virtual)
390 method = mono_object_get_virtual_method (delegate->target, method);
392 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
393 const char *exc_class, *exc_arg;
396 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
398 g_assert (exc_class);
399 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
405 if (delegate->target) {
406 /* Produce a location which can be embedded in JITted code */
407 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
410 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
412 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
416 // Add the delegate to the delegate hash table
417 delegate_hash_table_add (delegate);
419 /* when the object is collected, collect the dynamic method, too */
420 mono_object_register_finalizer ((MonoObject*)delegate);
422 return delegate->delegate_trampoline;
425 mono_gchandle_free (target_handle);
426 mono_error_set_pending_exception (&error);
431 * this hash table maps from a delegate trampoline object to a weak reference
432 * of the delegate. As an optimizations with a non-moving GC we store the
433 * object pointer itself, otherwise we use a GC handle.
435 static GHashTable *delegate_hash_table;
438 delegate_hash_table_new (void) {
439 return g_hash_table_new (NULL, NULL);
443 delegate_hash_table_remove (MonoDelegate *d)
445 guint32 gchandle = 0;
447 mono_marshal_lock ();
448 if (delegate_hash_table == NULL)
449 delegate_hash_table = delegate_hash_table_new ();
450 if (mono_gc_is_moving ())
451 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
452 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
453 mono_marshal_unlock ();
454 if (gchandle && mono_gc_is_moving ())
455 mono_gchandle_free (gchandle);
459 delegate_hash_table_add (MonoDelegate *d)
462 guint32 old_gchandle;
464 mono_marshal_lock ();
465 if (delegate_hash_table == NULL)
466 delegate_hash_table = delegate_hash_table_new ();
467 if (mono_gc_is_moving ()) {
468 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
469 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
470 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
472 mono_gchandle_free (old_gchandle);
474 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
476 mono_marshal_unlock ();
480 * mono_marshal_use_aot_wrappers:
482 * Instructs this module to use AOT compatible wrappers.
485 mono_marshal_use_aot_wrappers (gboolean use)
487 use_aot_wrappers = use;
491 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
494 MonoCustomAttrInfo *cinfo;
495 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
497 /* The attribute is only available in Net 2.0 */
498 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
500 * The pinvoke attributes are stored in a real custom attribute so we have to
503 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
504 if (!mono_error_ok (&error)) {
505 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
506 mono_error_cleanup (&error);
508 if (cinfo && !mono_runtime_get_no_exec ()) {
509 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
511 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
513 if (!mono_error_ok (&error)) {
514 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
515 mono_error_cleanup (&error);
519 mono_custom_attrs_free (cinfo);
524 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
526 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
535 mono_marshal_lock ();
536 if (delegate_hash_table == NULL)
537 delegate_hash_table = delegate_hash_table_new ();
539 if (mono_gc_is_moving ()) {
540 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
541 mono_marshal_unlock ();
543 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
547 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
548 mono_marshal_unlock ();
551 /* This is a native function, so construct a delegate for it */
552 MonoMethodSignature *sig;
554 MonoMarshalSpec **mspecs;
555 MonoMethod *invoke = mono_get_delegate_invoke (klass);
556 MonoMethodPInvoke piinfo;
557 MonoObject *this_obj;
560 if (use_aot_wrappers) {
561 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
562 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
563 if (!is_ok (&error)) {
564 mono_error_set_pending_exception (&error);
568 memset (&piinfo, 0, sizeof (piinfo));
569 parse_unmanaged_function_pointer_attr (klass, &piinfo);
571 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
572 mono_method_get_marshal_info (invoke, mspecs);
573 /* Freed below so don't alloc from mempool */
574 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
577 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
580 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
582 mono_metadata_free_marshal_spec (mspecs [i]);
587 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
588 if (!mono_error_ok (&error)) {
589 mono_error_set_pending_exception (&error);
592 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
593 if (mono_error_set_pending_exception (&error))
595 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
596 if (mono_error_set_pending_exception (&error))
600 if (d->object.vtable->domain != mono_domain_get ()) {
601 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
609 mono_delegate_free_ftnptr (MonoDelegate *delegate)
614 delegate_hash_table_remove (delegate);
616 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
618 if (!delegate->target) {
619 /* The wrapper method is shared between delegates -> no need to free it */
628 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
631 method = mono_jit_info_get_method (ji);
632 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
634 /*the target gchandle is the first entry after size and the wrapper itself.*/
635 gchandle = GPOINTER_TO_UINT (method_data [2]);
638 mono_gchandle_free (gchandle);
640 mono_runtime_free_method (mono_object_domain (delegate), method);
644 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
646 mono_string_from_byvalstr (const char *data, int max_len)
649 MonoDomain *domain = mono_domain_get ();
655 while (len < max_len - 1 && data [len])
658 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
659 mono_error_set_pending_exception (&error);
663 /* This is a JIT icall, it sets the pending exception and return NULL on error */
665 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
668 MonoString *res = NULL;
669 MonoDomain *domain = mono_domain_get ();
675 while (data [len]) len++;
677 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
678 if (!mono_error_ok (&error)) {
679 mono_error_set_pending_exception (&error);
686 mono_array_to_savearray (MonoArray *array)
691 g_assert_not_reached ();
696 mono_array_to_lparray (MonoArray *array)
699 gpointer *nativeArray = NULL;
700 int nativeArraySize = 0;
710 klass = array->obj.vtable->klass;
712 switch (klass->element_class->byval_arg.type) {
714 g_assert_not_reached ();
716 case MONO_TYPE_CLASS:
717 nativeArraySize = array->max_length;
718 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
719 for(i = 0; i < nativeArraySize; ++i)
720 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
723 case MONO_TYPE_BOOLEAN:
736 case MONO_TYPE_VALUETYPE:
740 case MONO_TYPE_GENERICINST:
741 case MONO_TYPE_OBJECT:
742 case MONO_TYPE_ARRAY:
743 case MONO_TYPE_SZARRAY:
744 case MONO_TYPE_STRING:
746 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
747 g_assert_not_reached ();
750 return array->vector;
754 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
765 klass = array->obj.vtable->klass;
767 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
768 for(i = 0; i < array->max_length; ++i)
769 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
776 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
778 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
780 if (elclass == mono_defaults.byte_class) {
781 GError *error = NULL;
785 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
788 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
792 g_error_free (error);
795 g_assert_not_reached ();
799 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
801 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
804 /* This is a JIT icall, it sets the pending exception and returns on error */
806 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
808 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
810 if (elclass == mono_defaults.byte_class) {
812 GError *error = NULL;
814 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
816 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
817 g_error_free (error);
821 memcpy (native_arr, as, MIN (strlen (as), elnum));
824 g_assert_not_reached ();
829 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
831 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
834 static MonoStringBuilder *
835 mono_string_builder_new (int starting_string_length)
837 static MonoClass *string_builder_class;
838 static MonoMethod *sb_ctor;
839 static void *args [1];
842 int initial_len = starting_string_length;
848 MonoMethodDesc *desc;
851 string_builder_class = mono_class_get_string_builder_class ();
852 g_assert (string_builder_class);
853 desc = mono_method_desc_new (":.ctor(int)", FALSE);
854 m = mono_method_desc_search_in_class (desc, string_builder_class);
856 mono_method_desc_free (desc);
857 mono_memory_barrier ();
861 // We make a new array in the _to_builder function, so this
862 // array will always be garbage collected.
863 args [0] = &initial_len;
865 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
866 mono_error_assert_ok (&error);
869 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
870 g_assert (exc == NULL);
871 mono_error_assert_ok (&error);
873 g_assert (sb->chunkChars->max_length >= initial_len);
879 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
881 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
882 gunichar2 *charSrc = (gunichar2 *)text;
883 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
885 sb->chunkLength = string_len;
891 mono_string_utf16_to_builder2 (gunichar2 *text)
897 for (len = 0; text [len] != 0; ++len);
899 MonoStringBuilder *sb = mono_string_builder_new (len);
900 mono_string_utf16_to_builder (sb, text);
906 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
911 int len = strlen (text);
912 if (len > mono_string_builder_capacity (sb))
913 len = mono_string_builder_capacity (sb);
915 GError *error = NULL;
917 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
920 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
921 mono_string_utf16_to_builder_copy (sb, ut, copied);
923 g_error_free (error);
929 mono_string_utf8_to_builder2 (char *text)
934 int len = strlen (text);
935 MonoStringBuilder *sb = mono_string_builder_new (len);
936 mono_string_utf8_to_builder (sb, text);
943 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
949 for (len = 0; text [len] != 0; ++len);
951 if (len > mono_string_builder_capacity (sb))
952 len = mono_string_builder_capacity (sb);
954 mono_string_utf16_to_builder_copy (sb, text, len);
958 * mono_string_builder_to_utf8:
959 * @sb: the string builder
961 * Converts to utf8 the contents of the MonoStringBuilder.
963 * Returns: a utf8 string with the contents of the StringBuilder.
965 * The return value must be released with mono_marshal_free.
967 * This is a JIT icall, it sets the pending exception and returns NULL on error.
970 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
973 GError *gerror = NULL;
978 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
980 guint str_len = mono_string_builder_string_length (sb);
982 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
985 g_error_free (gerror);
986 mono_marshal_free (str_utf16);
987 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
990 guint len = mono_string_builder_capacity (sb) + 1;
991 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
992 if (!mono_error_ok (&error)) {
993 mono_marshal_free (str_utf16);
995 mono_error_set_pending_exception (&error);
999 g_assert (str_len < len);
1000 memcpy (res, tmp, str_len * sizeof (gchar));
1001 res[str_len] = '\0';
1003 mono_marshal_free (str_utf16);
1010 * mono_string_builder_to_utf16:
1011 * @sb: the string builder
1013 * Converts to utf16 the contents of the MonoStringBuilder.
1015 * Returns: a utf16 string with the contents of the StringBuilder.
1017 * The return value must be released with mono_marshal_free.
1019 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1022 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1029 g_assert (sb->chunkChars);
1031 guint len = mono_string_builder_capacity (sb);
1036 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1037 if (!mono_error_ok (&error)) {
1038 mono_error_set_pending_exception (&error);
1047 MonoStringBuilder* chunk = sb;
1049 if (chunk->chunkLength > 0) {
1050 // Check that we will not overrun our boundaries.
1051 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1053 if (chunk->chunkLength <= len) {
1054 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1056 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1059 len -= chunk->chunkLength;
1061 chunk = chunk->chunkPrevious;
1062 } while (chunk != NULL);
1067 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1069 mono_string_to_lpstr (MonoString *s)
1074 GError *error = NULL;
1080 as = CoTaskMemAlloc (1);
1085 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1087 MonoException *exc = mono_get_exception_argument ("string", error->message);
1088 g_error_free (error);
1089 mono_set_pending_exception (exc);
1092 as = CoTaskMemAlloc (len + 1);
1093 memcpy (as, tmp, len + 1);
1099 char *result = mono_string_to_utf8_checked (s, &error);
1100 mono_error_set_pending_exception (&error);
1106 mono_string_to_ansibstr (MonoString *string_obj)
1108 g_error ("UnmanagedMarshal.BStr is not implemented.");
1113 * mono_string_to_byvalstr:
1114 * @dst: Where to store the null-terminated utf8 decoded string.
1115 * @src: the MonoString to copy.
1116 * @size: the maximum number of bytes to copy.
1118 * Copies the MonoString pointed to by @src as a utf8 string
1119 * into @dst, it copies at most @size bytes into the destination.
1122 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1128 g_assert (dst != NULL);
1129 g_assert (size > 0);
1131 memset (dst, 0, size);
1135 s = mono_string_to_utf8_checked (src, &error);
1136 if (mono_error_set_pending_exception (&error))
1138 len = MIN (size, strlen (s));
1141 memcpy (dst, s, len);
1146 * mono_string_to_byvalwstr:
1147 * @dst: Where to store the null-terminated utf16 decoded string.
1148 * @src: the MonoString to copy.
1149 * @size: the maximum number of bytes to copy.
1151 * Copies the MonoString pointed to by @src as a utf16 string into
1152 * @dst, it copies at most @size bytes into the destination (including
1153 * a terminating 16-bit zero terminator).
1156 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1160 g_assert (dst != NULL);
1161 g_assert (size > 1);
1164 memset (dst, 0, size * 2);
1168 len = MIN (size, (mono_string_length (src)));
1169 memcpy (dst, mono_string_chars (src), size * 2);
1170 if (size <= mono_string_length (src))
1172 *((gunichar2 *) dst + len) = 0;
1175 /* this is an icall, it sets the pending exception and returns NULL on error */
1177 mono_string_new_len_wrapper (const char *text, guint length)
1180 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1181 mono_error_set_pending_exception (&error);
1188 * mono_mb_emit_exception_marshal_directive:
1190 * This function assumes ownership of MSG, which should be malloc-ed.
1193 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1198 s = mono_image_strdup (mb->method->klass->image, msg);
1203 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1206 #endif /* !DISABLE_JIT */
1209 mono_type_to_ldind (MonoType *type)
1215 switch (type->type) {
1217 return CEE_LDIND_I1;
1219 case MONO_TYPE_BOOLEAN:
1220 return CEE_LDIND_U1;
1222 return CEE_LDIND_I2;
1224 case MONO_TYPE_CHAR:
1225 return CEE_LDIND_U2;
1227 return CEE_LDIND_I4;
1229 return CEE_LDIND_U4;
1233 case MONO_TYPE_FNPTR:
1235 case MONO_TYPE_CLASS:
1236 case MONO_TYPE_STRING:
1237 case MONO_TYPE_OBJECT:
1238 case MONO_TYPE_SZARRAY:
1239 case MONO_TYPE_ARRAY:
1240 return CEE_LDIND_REF;
1243 return CEE_LDIND_I8;
1245 return CEE_LDIND_R4;
1247 return CEE_LDIND_R8;
1248 case MONO_TYPE_VALUETYPE:
1249 if (type->data.klass->enumtype) {
1250 type = mono_class_enum_basetype (type->data.klass);
1254 case MONO_TYPE_TYPEDBYREF:
1256 case MONO_TYPE_GENERICINST:
1257 type = &type->data.generic_class->container_class->byval_arg;
1260 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1266 mono_type_to_stind (MonoType *type)
1269 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1273 switch (type->type) {
1276 case MONO_TYPE_BOOLEAN:
1277 return CEE_STIND_I1;
1280 case MONO_TYPE_CHAR:
1281 return CEE_STIND_I2;
1284 return CEE_STIND_I4;
1288 case MONO_TYPE_FNPTR:
1290 case MONO_TYPE_CLASS:
1291 case MONO_TYPE_STRING:
1292 case MONO_TYPE_OBJECT:
1293 case MONO_TYPE_SZARRAY:
1294 case MONO_TYPE_ARRAY:
1295 return CEE_STIND_REF;
1298 return CEE_STIND_I8;
1300 return CEE_STIND_R4;
1302 return CEE_STIND_R8;
1303 case MONO_TYPE_VALUETYPE:
1304 if (type->data.klass->enumtype) {
1305 type = mono_class_enum_basetype (type->data.klass);
1309 case MONO_TYPE_TYPEDBYREF:
1311 case MONO_TYPE_GENERICINST:
1312 type = &type->data.generic_class->container_class->byval_arg;
1315 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1323 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1326 case MONO_MARSHAL_CONV_BOOL_I4:
1327 mono_mb_emit_ldloc (mb, 1);
1328 mono_mb_emit_ldloc (mb, 0);
1329 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1330 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1331 mono_mb_emit_byte (mb, 3);
1332 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1333 mono_mb_emit_byte (mb, CEE_BR_S);
1334 mono_mb_emit_byte (mb, 1);
1335 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1336 mono_mb_emit_byte (mb, CEE_STIND_I1);
1338 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1339 mono_mb_emit_ldloc (mb, 1);
1340 mono_mb_emit_ldloc (mb, 0);
1341 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1342 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1343 mono_mb_emit_byte (mb, 3);
1344 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1345 mono_mb_emit_byte (mb, CEE_BR_S);
1346 mono_mb_emit_byte (mb, 1);
1347 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1348 mono_mb_emit_byte (mb, CEE_STIND_I1);
1350 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1351 MonoClass *eklass = NULL;
1354 if (type->type == MONO_TYPE_SZARRAY) {
1355 eklass = type->data.klass;
1357 g_assert_not_reached ();
1360 esize = mono_class_native_size (eklass, NULL);
1362 /* create a new array */
1363 mono_mb_emit_ldloc (mb, 1);
1364 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1365 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1366 mono_mb_emit_byte (mb, CEE_STIND_REF);
1368 if (eklass->blittable) {
1369 /* copy the elements */
1370 mono_mb_emit_ldloc (mb, 1);
1371 mono_mb_emit_byte (mb, CEE_LDIND_I);
1372 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1373 mono_mb_emit_byte (mb, CEE_ADD);
1374 mono_mb_emit_ldloc (mb, 0);
1375 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1376 mono_mb_emit_byte (mb, CEE_PREFIX1);
1377 mono_mb_emit_byte (mb, CEE_CPBLK);
1380 int array_var, src_var, dst_var, index_var;
1381 guint32 label2, label3;
1383 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1384 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1385 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1388 mono_mb_emit_ldloc (mb, 1);
1389 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1390 mono_mb_emit_stloc (mb, array_var);
1392 /* save the old src pointer */
1393 mono_mb_emit_ldloc (mb, 0);
1394 mono_mb_emit_stloc (mb, src_var);
1395 /* save the old dst pointer */
1396 mono_mb_emit_ldloc (mb, 1);
1397 mono_mb_emit_stloc (mb, dst_var);
1399 /* Emit marshalling loop */
1400 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1401 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1402 mono_mb_emit_stloc (mb, index_var);
1405 label2 = mono_mb_get_label (mb);
1406 mono_mb_emit_ldloc (mb, index_var);
1407 mono_mb_emit_ldloc (mb, array_var);
1408 mono_mb_emit_byte (mb, CEE_LDLEN);
1409 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1411 /* src is already set */
1414 mono_mb_emit_ldloc (mb, array_var);
1415 mono_mb_emit_ldloc (mb, index_var);
1416 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1417 mono_mb_emit_stloc (mb, 1);
1419 /* Do the conversion */
1420 emit_struct_conv (mb, eklass, TRUE);
1423 mono_mb_emit_add_to_local (mb, index_var, 1);
1425 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1427 mono_mb_patch_branch (mb, label3);
1429 /* restore the old src pointer */
1430 mono_mb_emit_ldloc (mb, src_var);
1431 mono_mb_emit_stloc (mb, 0);
1432 /* restore the old dst pointer */
1433 mono_mb_emit_ldloc (mb, dst_var);
1434 mono_mb_emit_stloc (mb, 1);
1438 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1439 MonoClass *eclass = mono_defaults.char_class;
1441 /* create a new array */
1442 mono_mb_emit_ldloc (mb, 1);
1443 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1444 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1445 mono_mb_emit_byte (mb, CEE_STIND_REF);
1447 mono_mb_emit_ldloc (mb, 1);
1448 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1449 mono_mb_emit_ldloc (mb, 0);
1450 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1451 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1454 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1455 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1456 mono_mb_emit_ldloc (mb, 1);
1457 mono_mb_emit_ldloc (mb, 0);
1458 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1459 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1461 mono_mb_emit_ldloc (mb, 1);
1462 mono_mb_emit_ldloc (mb, 0);
1463 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1465 mono_mb_emit_byte (mb, CEE_STIND_REF);
1467 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1468 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1469 mono_mb_emit_ldloc (mb, 1);
1470 mono_mb_emit_ldloc (mb, 0);
1471 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1472 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1474 mono_mb_emit_ldloc (mb, 1);
1475 mono_mb_emit_ldloc (mb, 0);
1476 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1478 mono_mb_emit_byte (mb, CEE_STIND_REF);
1480 case MONO_MARSHAL_CONV_STR_LPTSTR:
1481 mono_mb_emit_ldloc (mb, 1);
1482 mono_mb_emit_ldloc (mb, 0);
1483 mono_mb_emit_byte (mb, CEE_LDIND_I);
1485 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1487 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1489 mono_mb_emit_byte (mb, CEE_STIND_REF);
1491 case MONO_MARSHAL_CONV_STR_LPSTR:
1492 mono_mb_emit_ldloc (mb, 1);
1493 mono_mb_emit_ldloc (mb, 0);
1494 mono_mb_emit_byte (mb, CEE_LDIND_I);
1495 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1496 mono_mb_emit_byte (mb, CEE_STIND_REF);
1498 case MONO_MARSHAL_CONV_STR_LPWSTR:
1499 mono_mb_emit_ldloc (mb, 1);
1500 mono_mb_emit_ldloc (mb, 0);
1501 mono_mb_emit_byte (mb, CEE_LDIND_I);
1502 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1503 mono_mb_emit_byte (mb, CEE_STIND_REF);
1505 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1506 MonoClass *klass = mono_class_from_mono_type (type);
1507 int src_var, dst_var;
1509 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1510 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1512 /* *dst = new object */
1513 mono_mb_emit_ldloc (mb, 1);
1514 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1515 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1516 mono_mb_emit_byte (mb, CEE_STIND_REF);
1518 /* save the old src pointer */
1519 mono_mb_emit_ldloc (mb, 0);
1520 mono_mb_emit_stloc (mb, src_var);
1521 /* save the old dst pointer */
1522 mono_mb_emit_ldloc (mb, 1);
1523 mono_mb_emit_stloc (mb, dst_var);
1525 /* dst = pointer to newly created object data */
1526 mono_mb_emit_ldloc (mb, 1);
1527 mono_mb_emit_byte (mb, CEE_LDIND_I);
1528 mono_mb_emit_icon (mb, sizeof (MonoObject));
1529 mono_mb_emit_byte (mb, CEE_ADD);
1530 mono_mb_emit_stloc (mb, 1);
1532 emit_struct_conv (mb, klass, TRUE);
1534 /* restore the old src pointer */
1535 mono_mb_emit_ldloc (mb, src_var);
1536 mono_mb_emit_stloc (mb, 0);
1537 /* restore the old dst pointer */
1538 mono_mb_emit_ldloc (mb, dst_var);
1539 mono_mb_emit_stloc (mb, 1);
1542 case MONO_MARSHAL_CONV_DEL_FTN: {
1543 MonoClass *klass = mono_class_from_mono_type (type);
1545 mono_mb_emit_ldloc (mb, 1);
1546 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1547 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1548 mono_mb_emit_ldloc (mb, 0);
1549 mono_mb_emit_byte (mb, CEE_LDIND_I);
1550 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1551 mono_mb_emit_byte (mb, CEE_STIND_REF);
1554 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1555 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1559 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1560 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1561 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1562 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1564 #endif /* DISABLE_COM */
1566 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1568 * Passing SafeHandles as ref does not allow the unmanaged code
1569 * to change the SafeHandle value. If the value is changed,
1570 * we should issue a diagnostic exception (NotSupportedException)
1571 * that informs the user that changes to handles in unmanaged code
1574 * Since we currently have no access to the original
1575 * SafeHandle that was used during the marshalling,
1576 * for now we just ignore this, and ignore/discard any
1577 * changes that might have happened to the handle.
1582 case MONO_MARSHAL_CONV_HANDLEREF: {
1584 * Passing HandleRefs in a struct that is ref()ed does not
1585 * copy the values back to the HandleRef
1590 case MONO_MARSHAL_CONV_STR_BSTR:
1591 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1592 case MONO_MARSHAL_CONV_STR_TBSTR:
1593 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1595 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1597 mono_mb_emit_exception_marshal_directive (mb, msg);
1604 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1607 if (!ind_store_type)
1608 ind_store_type = &dummy;
1609 *ind_store_type = CEE_STIND_I;
1611 case MONO_MARSHAL_CONV_STR_LPWSTR:
1612 return mono_marshal_string_to_utf16;
1613 case MONO_MARSHAL_CONV_LPWSTR_STR:
1614 *ind_store_type = CEE_STIND_REF;
1615 return ves_icall_mono_string_from_utf16;
1616 case MONO_MARSHAL_CONV_LPTSTR_STR:
1617 *ind_store_type = CEE_STIND_REF;
1618 return mono_string_new_wrapper;
1619 case MONO_MARSHAL_CONV_LPSTR_STR:
1620 *ind_store_type = CEE_STIND_REF;
1621 return mono_string_new_wrapper;
1622 case MONO_MARSHAL_CONV_STR_LPTSTR:
1624 return mono_marshal_string_to_utf16;
1626 return mono_string_to_lpstr;
1628 case MONO_MARSHAL_CONV_STR_LPSTR:
1629 return mono_string_to_lpstr;
1630 case MONO_MARSHAL_CONV_STR_BSTR:
1631 return mono_string_to_bstr;
1632 case MONO_MARSHAL_CONV_BSTR_STR:
1633 *ind_store_type = CEE_STIND_REF;
1634 return mono_string_from_bstr_icall;
1635 case MONO_MARSHAL_CONV_STR_TBSTR:
1636 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1637 return mono_string_to_ansibstr;
1638 case MONO_MARSHAL_CONV_SB_LPSTR:
1639 return mono_string_builder_to_utf8;
1640 case MONO_MARSHAL_CONV_SB_LPTSTR:
1642 return mono_string_builder_to_utf16;
1644 return mono_string_builder_to_utf8;
1646 case MONO_MARSHAL_CONV_SB_LPWSTR:
1647 return mono_string_builder_to_utf16;
1648 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1649 return mono_array_to_savearray;
1650 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1651 return mono_array_to_lparray;
1652 case MONO_MARSHAL_FREE_LPARRAY:
1653 return mono_free_lparray;
1654 case MONO_MARSHAL_CONV_DEL_FTN:
1655 return mono_delegate_to_ftnptr;
1656 case MONO_MARSHAL_CONV_FTN_DEL:
1657 *ind_store_type = CEE_STIND_REF;
1658 return mono_ftnptr_to_delegate;
1659 case MONO_MARSHAL_CONV_LPSTR_SB:
1660 *ind_store_type = CEE_STIND_REF;
1661 return mono_string_utf8_to_builder;
1662 case MONO_MARSHAL_CONV_LPTSTR_SB:
1663 *ind_store_type = CEE_STIND_REF;
1665 return mono_string_utf16_to_builder;
1667 return mono_string_utf8_to_builder;
1669 case MONO_MARSHAL_CONV_LPWSTR_SB:
1670 *ind_store_type = CEE_STIND_REF;
1671 return mono_string_utf16_to_builder;
1672 case MONO_MARSHAL_FREE_ARRAY:
1673 return mono_marshal_free_array;
1674 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1675 return mono_string_to_byvalstr;
1676 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1677 return mono_string_to_byvalwstr;
1679 g_assert_not_reached ();
1686 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1692 case MONO_MARSHAL_CONV_BOOL_I4:
1693 mono_mb_emit_ldloc (mb, 1);
1694 mono_mb_emit_ldloc (mb, 0);
1695 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1696 mono_mb_emit_byte (mb, CEE_STIND_I4);
1698 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1699 mono_mb_emit_ldloc (mb, 1);
1700 mono_mb_emit_ldloc (mb, 0);
1701 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1702 mono_mb_emit_byte (mb, CEE_NEG);
1703 mono_mb_emit_byte (mb, CEE_STIND_I2);
1705 case MONO_MARSHAL_CONV_STR_LPWSTR:
1706 case MONO_MARSHAL_CONV_STR_LPSTR:
1707 case MONO_MARSHAL_CONV_STR_LPTSTR:
1708 case MONO_MARSHAL_CONV_STR_BSTR:
1709 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1710 case MONO_MARSHAL_CONV_STR_TBSTR: {
1713 /* free space if free == true */
1714 mono_mb_emit_ldloc (mb, 2);
1715 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1716 mono_mb_emit_ldloc (mb, 1);
1717 mono_mb_emit_byte (mb, CEE_LDIND_I);
1718 mono_mb_emit_icall (mb, g_free);
1719 mono_mb_patch_short_branch (mb, pos);
1721 mono_mb_emit_ldloc (mb, 1);
1722 mono_mb_emit_ldloc (mb, 0);
1723 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1724 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1725 mono_mb_emit_byte (mb, stind_op);
1728 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1729 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1730 case MONO_MARSHAL_CONV_DEL_FTN:
1731 mono_mb_emit_ldloc (mb, 1);
1732 mono_mb_emit_ldloc (mb, 0);
1733 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1734 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1735 mono_mb_emit_byte (mb, stind_op);
1737 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1738 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1741 mono_mb_emit_ldloc (mb, 1); /* dst */
1742 mono_mb_emit_ldloc (mb, 0);
1743 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1744 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1745 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1748 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1749 MonoClass *eklass = NULL;
1752 if (type->type == MONO_TYPE_SZARRAY) {
1753 eklass = type->data.klass;
1755 g_assert_not_reached ();
1758 if (eklass->valuetype)
1759 esize = mono_class_native_size (eklass, NULL);
1761 esize = sizeof (gpointer);
1763 mono_mb_emit_ldloc (mb, 0);
1764 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1765 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1767 if (eklass->blittable) {
1768 mono_mb_emit_ldloc (mb, 1);
1769 mono_mb_emit_ldloc (mb, 0);
1770 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1771 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1772 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1773 mono_mb_emit_byte (mb, CEE_PREFIX1);
1774 mono_mb_emit_byte (mb, CEE_CPBLK);
1776 int array_var, src_var, dst_var, index_var;
1777 guint32 label2, label3;
1779 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1780 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1781 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1784 mono_mb_emit_ldloc (mb, 0);
1785 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1786 mono_mb_emit_stloc (mb, array_var);
1788 /* save the old src pointer */
1789 mono_mb_emit_ldloc (mb, 0);
1790 mono_mb_emit_stloc (mb, src_var);
1791 /* save the old dst pointer */
1792 mono_mb_emit_ldloc (mb, 1);
1793 mono_mb_emit_stloc (mb, dst_var);
1795 /* Emit marshalling loop */
1796 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1797 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1798 mono_mb_emit_stloc (mb, index_var);
1801 label2 = mono_mb_get_label (mb);
1802 mono_mb_emit_ldloc (mb, index_var);
1803 mono_mb_emit_ldloc (mb, array_var);
1804 mono_mb_emit_byte (mb, CEE_LDLEN);
1805 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1808 mono_mb_emit_ldloc (mb, array_var);
1809 mono_mb_emit_ldloc (mb, index_var);
1810 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1811 mono_mb_emit_stloc (mb, 0);
1813 /* dst is already set */
1815 /* Do the conversion */
1816 emit_struct_conv (mb, eklass, FALSE);
1819 mono_mb_emit_add_to_local (mb, index_var, 1);
1821 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1823 mono_mb_patch_branch (mb, label3);
1825 /* restore the old src pointer */
1826 mono_mb_emit_ldloc (mb, src_var);
1827 mono_mb_emit_stloc (mb, 0);
1828 /* restore the old dst pointer */
1829 mono_mb_emit_ldloc (mb, dst_var);
1830 mono_mb_emit_stloc (mb, 1);
1833 mono_mb_patch_branch (mb, pos);
1836 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1837 mono_mb_emit_ldloc (mb, 0);
1838 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1839 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1841 mono_mb_emit_ldloc (mb, 1);
1842 mono_mb_emit_ldloc (mb, 0);
1843 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1844 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1845 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1846 mono_mb_patch_short_branch (mb, pos);
1849 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1850 int src_var, dst_var;
1852 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1853 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1855 mono_mb_emit_ldloc (mb, 0);
1856 mono_mb_emit_byte (mb, CEE_LDIND_I);
1857 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1859 /* save the old src pointer */
1860 mono_mb_emit_ldloc (mb, 0);
1861 mono_mb_emit_stloc (mb, src_var);
1862 /* save the old dst pointer */
1863 mono_mb_emit_ldloc (mb, 1);
1864 mono_mb_emit_stloc (mb, dst_var);
1866 /* src = pointer to object data */
1867 mono_mb_emit_ldloc (mb, 0);
1868 mono_mb_emit_byte (mb, CEE_LDIND_I);
1869 mono_mb_emit_icon (mb, sizeof (MonoObject));
1870 mono_mb_emit_byte (mb, CEE_ADD);
1871 mono_mb_emit_stloc (mb, 0);
1873 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1875 /* restore the old src pointer */
1876 mono_mb_emit_ldloc (mb, src_var);
1877 mono_mb_emit_stloc (mb, 0);
1878 /* restore the old dst pointer */
1879 mono_mb_emit_ldloc (mb, dst_var);
1880 mono_mb_emit_stloc (mb, 1);
1882 mono_mb_patch_branch (mb, pos);
1887 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1888 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1889 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1890 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1892 #endif /* DISABLE_COM */
1894 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1897 mono_mb_emit_ldloc (mb, 0);
1898 mono_mb_emit_byte (mb, CEE_LDIND_I);
1899 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1900 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1901 mono_mb_patch_branch (mb, pos);
1903 /* Pull the handle field from SafeHandle */
1904 mono_mb_emit_ldloc (mb, 1);
1905 mono_mb_emit_ldloc (mb, 0);
1906 mono_mb_emit_byte (mb, CEE_LDIND_I);
1907 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1908 mono_mb_emit_byte (mb, CEE_LDIND_I);
1909 mono_mb_emit_byte (mb, CEE_STIND_I);
1913 case MONO_MARSHAL_CONV_HANDLEREF: {
1914 mono_mb_emit_ldloc (mb, 1);
1915 mono_mb_emit_ldloc (mb, 0);
1916 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1917 mono_mb_emit_byte (mb, CEE_ADD);
1918 mono_mb_emit_byte (mb, CEE_LDIND_I);
1919 mono_mb_emit_byte (mb, CEE_STIND_I);
1924 g_error ("marshalling conversion %d not implemented", conv);
1930 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1931 MonoMarshalNative string_encoding)
1933 MonoMarshalType *info;
1937 emit_struct_conv(mb, klass->parent, to_object);
1939 info = mono_marshal_load_type_info (klass);
1941 if (info->native_size == 0)
1944 if (klass->blittable) {
1945 int msize = mono_class_value_size (klass, NULL);
1946 g_assert (msize == info->native_size);
1947 mono_mb_emit_ldloc (mb, 1);
1948 mono_mb_emit_ldloc (mb, 0);
1949 mono_mb_emit_icon (mb, msize);
1950 mono_mb_emit_byte (mb, CEE_PREFIX1);
1951 mono_mb_emit_byte (mb, CEE_CPBLK);
1953 mono_mb_emit_add_to_local (mb, 0, msize);
1954 mono_mb_emit_add_to_local (mb, 1, msize);
1958 if (klass != mono_class_try_get_safehandle_class ()) {
1959 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1960 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1961 mono_type_full_name (&klass->byval_arg));
1962 mono_mb_emit_exception_marshal_directive (mb, msg);
1967 for (i = 0; i < info->num_fields; i++) {
1968 MonoMarshalNative ntype;
1969 MonoMarshalConv conv;
1970 MonoType *ftype = info->fields [i].field->type;
1973 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1975 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1978 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1981 msize = klass->instance_size - info->fields [i].field->offset;
1982 usize = info->native_size - info->fields [i].offset;
1984 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1985 usize = info->fields [i + 1].offset - info->fields [i].offset;
1988 if (klass != mono_class_try_get_safehandle_class ()){
1990 * FIXME: Should really check for usize==0 and msize>0, but we apply
1991 * the layout to the managed structure as well.
1994 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1995 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1996 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1997 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1998 "reference field at the same offset as another field.",
1999 mono_type_full_name (&klass->byval_arg));
2004 case MONO_MARSHAL_CONV_NONE: {
2007 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2008 g_assert (!ftype->byref);
2009 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2010 mono_mb_emit_ldloc (mb, 1);
2011 mono_mb_emit_ldloc (mb, 0);
2012 mono_mb_emit_byte (mb, CEE_LDIND_I);
2013 mono_mb_emit_byte (mb, CEE_STIND_I);
2024 case MONO_TYPE_BOOLEAN:
2027 case MONO_TYPE_CHAR:
2033 mono_mb_emit_ldloc (mb, 1);
2034 mono_mb_emit_ldloc (mb, 0);
2035 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2037 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2038 mono_mb_emit_byte (mb, CEE_STIND_I2);
2040 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2041 mono_mb_emit_byte (mb, CEE_STIND_I1);
2044 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2045 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2048 case MONO_TYPE_VALUETYPE: {
2049 int src_var, dst_var;
2051 if (ftype->data.klass->enumtype) {
2052 ftype = mono_class_enum_basetype (ftype->data.klass);
2056 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2057 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2059 /* save the old src pointer */
2060 mono_mb_emit_ldloc (mb, 0);
2061 mono_mb_emit_stloc (mb, src_var);
2062 /* save the old dst pointer */
2063 mono_mb_emit_ldloc (mb, 1);
2064 mono_mb_emit_stloc (mb, dst_var);
2066 emit_struct_conv (mb, ftype->data.klass, to_object);
2068 /* restore the old src pointer */
2069 mono_mb_emit_ldloc (mb, src_var);
2070 mono_mb_emit_stloc (mb, 0);
2071 /* restore the old dst pointer */
2072 mono_mb_emit_ldloc (mb, dst_var);
2073 mono_mb_emit_stloc (mb, 1);
2076 case MONO_TYPE_OBJECT: {
2079 static MonoMethod *variant_clear = NULL;
2080 static MonoMethod *get_object_for_native_variant = NULL;
2083 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2084 if (!get_object_for_native_variant)
2085 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2086 mono_mb_emit_ldloc (mb, 1);
2087 mono_mb_emit_ldloc (mb, 0);
2088 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2089 mono_mb_emit_byte (mb, CEE_STIND_REF);
2091 mono_mb_emit_ldloc (mb, 0);
2092 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2095 static MonoMethod *get_native_variant_for_object = NULL;
2097 if (!get_native_variant_for_object)
2098 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2100 mono_mb_emit_ldloc (mb, 0);
2101 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2102 mono_mb_emit_ldloc (mb, 1);
2103 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2106 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2107 mono_mb_emit_exception_marshal_directive (mb, msg);
2113 g_warning ("marshaling type %02x not implemented", ftype->type);
2114 g_assert_not_reached ();
2119 int src_var, dst_var;
2121 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2122 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2124 /* save the old src pointer */
2125 mono_mb_emit_ldloc (mb, 0);
2126 mono_mb_emit_stloc (mb, src_var);
2127 /* save the old dst pointer */
2128 mono_mb_emit_ldloc (mb, 1);
2129 mono_mb_emit_stloc (mb, dst_var);
2132 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2134 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2136 /* restore the old src pointer */
2137 mono_mb_emit_ldloc (mb, src_var);
2138 mono_mb_emit_stloc (mb, 0);
2139 /* restore the old dst pointer */
2140 mono_mb_emit_ldloc (mb, dst_var);
2141 mono_mb_emit_stloc (mb, 1);
2146 mono_mb_emit_add_to_local (mb, 0, usize);
2147 mono_mb_emit_add_to_local (mb, 1, msize);
2149 mono_mb_emit_add_to_local (mb, 0, msize);
2150 mono_mb_emit_add_to_local (mb, 1, usize);
2156 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2158 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2162 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2164 /* Call DestroyStructure */
2165 /* FIXME: Only do this if needed */
2166 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2167 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2168 mono_mb_emit_ldloc (mb, struct_var);
2169 mono_mb_emit_icall (mb, mono_struct_delete_old);
2173 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2175 int pos_noabort, pos_noex;
2177 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2178 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2179 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2180 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2182 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2183 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2185 mono_mb_emit_icall (mb, checkpoint_func);
2186 /* Throw the exception returned by the checkpoint function, if any */
2187 mono_mb_emit_byte (mb, CEE_DUP);
2188 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2189 mono_mb_emit_byte (mb, CEE_THROW);
2190 mono_mb_patch_branch (mb, pos_noex);
2191 mono_mb_emit_byte (mb, CEE_POP);
2193 mono_mb_patch_branch (mb, pos_noabort);
2197 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2199 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2202 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2206 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2208 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2212 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2214 emit_thread_interrupt_checkpoint (mb);
2218 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2220 emit_thread_force_interrupt_checkpoint (mb);
2223 #endif /* DISABLE_JIT */
2225 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2226 static MonoAsyncResult *
2227 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2230 MonoMulticastDelegate *mcast_delegate;
2234 g_assert (delegate);
2235 mcast_delegate = (MonoMulticastDelegate *) delegate;
2236 if (mcast_delegate->delegates != NULL) {
2237 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2241 #ifndef DISABLE_REMOTING
2242 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2243 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2244 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2245 /* If the target is a proxy, make a direct call. Is proxy's work
2246 // to make the call asynchronous.
2248 MonoMethodMessage *msg;
2249 MonoDelegate *async_callback;
2251 MonoAsyncResult *ares;
2253 MonoArray *out_args;
2254 method = delegate->method;
2256 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2257 if (mono_error_set_pending_exception (&error))
2259 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2260 if (mono_error_set_pending_exception (&error))
2262 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2263 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2264 MONO_OBJECT_SETREF (msg, async_result, ares);
2265 msg->call_type = CallType_BeginInvoke;
2268 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2269 if (!mono_error_ok (&error)) {
2270 mono_error_set_pending_exception (&error);
2274 mono_set_pending_exception ((MonoException *) exc);
2280 klass = delegate->object.vtable->klass;
2282 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2284 method = mono_get_delegate_invoke (klass);
2287 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2288 mono_error_set_pending_exception (&error);
2295 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2297 int i, params_var, tmp_var;
2299 /* allocate local (pointer) *params[] */
2300 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2301 /* allocate local (pointer) tmp */
2302 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2304 /* alloate space on stack to store an array of pointers to the arguments */
2305 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2306 mono_mb_emit_byte (mb, CEE_PREFIX1);
2307 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2308 mono_mb_emit_stloc (mb, params_var);
2311 mono_mb_emit_ldloc (mb, params_var);
2312 mono_mb_emit_stloc (mb, tmp_var);
2314 if (save_this && sig->hasthis) {
2315 mono_mb_emit_ldloc (mb, tmp_var);
2316 mono_mb_emit_ldarg_addr (mb, 0);
2317 mono_mb_emit_byte (mb, CEE_STIND_I);
2318 /* tmp = tmp + sizeof (gpointer) */
2319 if (sig->param_count)
2320 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2324 for (i = 0; i < sig->param_count; i++) {
2325 mono_mb_emit_ldloc (mb, tmp_var);
2326 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2327 mono_mb_emit_byte (mb, CEE_STIND_I);
2328 /* tmp = tmp + sizeof (gpointer) */
2329 if (i < (sig->param_count - 1))
2330 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2336 #endif /* DISABLE_JIT */
2339 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2343 GString *res = g_string_new ("");
2346 g_string_append (res, prefix);
2347 g_string_append_c (res, '_');
2350 mono_type_get_desc (res, sig->ret, FALSE);
2353 g_string_append (res, "__this__");
2355 for (i = 0; i < sig->param_count; ++i) {
2356 g_string_append_c (res, '_');
2357 mono_type_get_desc (res, sig->params [i], FALSE);
2360 g_string_free (res, FALSE);
2365 * mono_marshal_get_string_encoding:
2367 * Return the string encoding which should be used for a given parameter.
2369 static MonoMarshalNative
2370 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2372 /* First try the parameter marshal info */
2374 if (spec->native == MONO_NATIVE_LPARRAY) {
2375 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2376 return spec->data.array_data.elem_type;
2379 return spec->native;
2383 return MONO_NATIVE_LPSTR;
2385 /* Then try the method level marshal info */
2386 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2387 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2388 return MONO_NATIVE_LPSTR;
2389 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2390 return MONO_NATIVE_LPWSTR;
2391 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2393 return MONO_NATIVE_LPWSTR;
2395 return MONO_NATIVE_LPSTR;
2398 return MONO_NATIVE_LPSTR;
2402 static MonoMarshalConv
2403 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2405 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2408 case MONO_NATIVE_LPWSTR:
2409 return MONO_MARSHAL_CONV_STR_LPWSTR;
2410 case MONO_NATIVE_LPSTR:
2411 case MONO_NATIVE_VBBYREFSTR:
2412 return MONO_MARSHAL_CONV_STR_LPSTR;
2413 case MONO_NATIVE_LPTSTR:
2414 return MONO_MARSHAL_CONV_STR_LPTSTR;
2415 case MONO_NATIVE_BSTR:
2416 return MONO_MARSHAL_CONV_STR_BSTR;
2418 return MONO_MARSHAL_CONV_INVALID;
2422 static MonoMarshalConv
2423 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2425 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2428 case MONO_NATIVE_LPWSTR:
2429 return MONO_MARSHAL_CONV_SB_LPWSTR;
2431 case MONO_NATIVE_LPSTR:
2432 return MONO_MARSHAL_CONV_SB_LPSTR;
2434 case MONO_NATIVE_LPTSTR:
2435 return MONO_MARSHAL_CONV_SB_LPTSTR;
2438 return MONO_MARSHAL_CONV_INVALID;
2442 static MonoMarshalConv
2443 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2445 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2450 case MONO_NATIVE_LPWSTR:
2452 return MONO_MARSHAL_CONV_LPWSTR_STR;
2453 case MONO_NATIVE_LPSTR:
2454 case MONO_NATIVE_VBBYREFSTR:
2455 return MONO_MARSHAL_CONV_LPSTR_STR;
2456 case MONO_NATIVE_LPTSTR:
2457 return MONO_MARSHAL_CONV_LPTSTR_STR;
2458 case MONO_NATIVE_BSTR:
2459 return MONO_MARSHAL_CONV_BSTR_STR;
2461 return MONO_MARSHAL_CONV_INVALID;
2465 static MonoMarshalConv
2466 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2468 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2473 case MONO_NATIVE_LPWSTR:
2475 * mono_string_builder_to_utf16 does not allocate a
2476 * new buffer, so no need to free it.
2479 return MONO_MARSHAL_CONV_LPWSTR_SB;
2480 case MONO_NATIVE_LPSTR:
2481 return MONO_MARSHAL_CONV_LPSTR_SB;
2483 case MONO_NATIVE_LPTSTR:
2484 return MONO_MARSHAL_CONV_LPTSTR_SB;
2487 return MONO_MARSHAL_CONV_INVALID;
2492 * Return whenever a field of a native structure or an array member needs to
2496 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2498 MonoMarshalNative encoding;
2501 case MONO_TYPE_VALUETYPE:
2502 /* FIXME: Optimize this */
2504 case MONO_TYPE_OBJECT:
2505 case MONO_TYPE_CLASS:
2506 if (t->data.klass == mono_defaults.stringbuilder_class) {
2508 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2512 case MONO_TYPE_STRING:
2513 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2514 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2521 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2524 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2527 mono_marshal_lock ();
2530 g_hash_table_new (hash_func, equal_func);
2531 mono_memory_barrier ();
2534 mono_marshal_unlock ();
2540 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2542 return get_cache (var, hash_func, equal_func);
2546 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2550 mono_marshal_lock ();
2551 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2552 mono_marshal_unlock ();
2559 * Create a MonoMethod from MB, set INFO as wrapper info.
2562 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2563 int max_stack, WrapperInfo *info)
2567 res = mono_mb_create_method (mb, sig, max_stack);
2569 mono_marshal_set_wrapper_info (res, info);
2573 /* Create the method from the builder and place it in the cache */
2575 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2576 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2577 int max_stack, WrapperInfo *info, gboolean *out_found)
2584 mono_marshal_lock ();
2585 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2586 mono_marshal_unlock ();
2589 newm = mono_mb_create_method (mb, sig, max_stack);
2590 mono_marshal_lock ();
2591 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2594 g_hash_table_insert (cache, key, res);
2595 mono_marshal_set_wrapper_info (res, info);
2596 mono_marshal_unlock ();
2600 mono_marshal_unlock ();
2601 mono_free_method (newm);
2609 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2610 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2613 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2617 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2620 int wrapper_type = wrapper->wrapper_type;
2623 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2626 info = mono_marshal_get_wrapper_info (wrapper);
2628 switch (wrapper_type) {
2629 case MONO_WRAPPER_REMOTING_INVOKE:
2630 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2631 case MONO_WRAPPER_XDOMAIN_INVOKE:
2632 m = info->d.remoting.method;
2633 if (wrapper->is_inflated) {
2637 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2638 * contains an uninflated method.
2640 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2641 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2645 case MONO_WRAPPER_SYNCHRONIZED:
2646 m = info->d.synchronized.method;
2647 if (wrapper->is_inflated) {
2650 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2651 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2655 case MONO_WRAPPER_UNBOX:
2656 return info->d.unbox.method;
2657 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2658 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2659 return info->d.managed_to_native.method;
2662 case MONO_WRAPPER_RUNTIME_INVOKE:
2663 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2664 return info->d.runtime_invoke.method;
2673 * mono_marshal_get_wrapper_info:
2675 * Retrieve the WrapperInfo structure associated with WRAPPER.
2678 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2680 g_assert (wrapper->wrapper_type);
2682 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2686 * mono_marshal_set_wrapper_info:
2688 * Set the WrapperInfo structure associated with the wrapper
2689 * method METHOD to INFO.
2692 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2696 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2699 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2704 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2708 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2709 info->subtype = subtype;
2714 * get_wrapper_target_class:
2716 * Return the class where a wrapper method should be placed.
2719 get_wrapper_target_class (MonoImage *image)
2726 * - can't put all wrappers into an mscorlib class, because they reference
2727 * metadata (signature) so they should be put into the same image as the
2728 * method they wrap, so they are unloaded together.
2729 * - putting them into a class with a type initalizer could cause the
2730 * initializer to be executed which can be a problem if the wrappers are
2732 * - putting them into an inflated class can cause problems if the the
2733 * class is deleted because it references an image which is unloaded.
2734 * To avoid these problems, we put the wrappers into the <Module> class of
2737 if (image_is_dynamic (image)) {
2738 klass = ((MonoDynamicImage*)image)->wrappers_type;
2740 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2741 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2749 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2750 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2754 * check_generic_wrapper_cache:
2756 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2757 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2758 * generic method definition.
2761 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2764 MonoMethod *inst, *def;
2765 MonoGenericContext *ctx;
2767 g_assert (orig_method->is_inflated);
2768 ctx = mono_method_get_context (orig_method);
2771 * Look for the instance
2773 res = mono_marshal_find_in_cache (cache, key);
2778 * Look for the definition
2780 def = mono_marshal_find_in_cache (cache, def_key);
2783 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2784 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2786 mono_memory_barrier ();
2787 mono_marshal_lock ();
2788 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2790 g_hash_table_insert (cache, key, inst);
2793 mono_marshal_unlock ();
2800 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2803 MonoMethod *inst, *res;
2806 * We use the same cache for the generic definition and the instances.
2808 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2809 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2810 mono_memory_barrier ();
2811 mono_marshal_lock ();
2812 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2814 g_hash_table_insert (cache, key, inst);
2817 mono_marshal_unlock ();
2822 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2826 MonoMethod *inst, *def;
2829 * Look for the instance
2831 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2836 * Look for the definition
2838 def = mono_marshal_find_in_cache (cache, def_method->klass);
2840 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2841 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2844 mono_memory_barrier ();
2845 mono_marshal_lock ();
2846 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2848 g_hash_table_insert (cache, orig_method->klass, inst);
2851 mono_marshal_unlock ();
2858 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2861 MonoMethod *inst, *res;
2864 * We use the same cache for the generic definition and the instances.
2866 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2867 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2869 mono_memory_barrier ();
2870 mono_marshal_lock ();
2871 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2873 g_hash_table_insert (cache, orig_method->klass, inst);
2876 mono_marshal_unlock ();
2881 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2883 MonoMethodSignature *sig;
2884 MonoMethodBuilder *mb;
2889 MonoGenericContext *ctx = NULL;
2890 MonoMethod *orig_method = NULL;
2892 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2893 !strcmp (method->name, "BeginInvoke"));
2896 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2898 if (method->is_inflated) {
2899 orig_method = method;
2900 ctx = &((MonoMethodInflated*)method)->context;
2901 method = ((MonoMethodInflated*)method)->declaring;
2904 sig = mono_signature_no_pinvoke (method);
2910 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2911 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2915 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2916 (GHashFunc)mono_signature_hash,
2917 (GCompareFunc)mono_metadata_signature_equal);
2918 if ((res = mono_marshal_find_in_cache (cache, sig)))
2922 g_assert (sig->hasthis);
2924 name = mono_signature_to_name (sig, "begin_invoke");
2926 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2928 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2932 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2934 mono_mb_emit_ldarg (mb, 0);
2935 mono_mb_emit_ldloc (mb, params_var);
2936 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2937 mono_mb_emit_byte (mb, CEE_RET);
2942 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2943 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2945 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2952 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2954 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2957 MonoDomain *domain = mono_domain_get ();
2958 MonoAsyncResult *ares;
2959 MonoMethod *method = NULL;
2960 MonoMethodSignature *sig;
2961 MonoMethodMessage *msg;
2962 MonoObject *res, *exc;
2963 MonoArray *out_args;
2966 g_assert (delegate);
2968 if (!delegate->method_info) {
2969 g_assert (delegate->method);
2970 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2971 if (!mono_error_ok (&error)) {
2972 mono_error_set_pending_exception (&error);
2975 MONO_OBJECT_SETREF (delegate, method_info, rm);
2978 if (!delegate->method_info || !delegate->method_info->method)
2979 g_assert_not_reached ();
2981 klass = delegate->object.vtable->klass;
2983 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2984 g_assert (method != NULL);
2986 sig = mono_signature_no_pinvoke (method);
2988 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
2989 if (mono_error_set_pending_exception (&error))
2992 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2994 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."));
2998 if (ares->async_delegate != (MonoObject*)delegate) {
2999 mono_set_pending_exception (mono_get_exception_invalid_operation (
3000 "The IAsyncResult object provided does not match this delegate."));
3004 #ifndef DISABLE_REMOTING
3005 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3006 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3007 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3008 if (!mono_error_ok (&error)) {
3009 mono_error_set_pending_exception (&error);
3012 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3013 if (mono_error_set_pending_exception (&error))
3015 msg->call_type = CallType_EndInvoke;
3016 MONO_OBJECT_SETREF (msg, async_result, ares);
3017 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3018 if (!mono_error_ok (&error)) {
3019 mono_error_set_pending_exception (&error);
3025 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc, &error);
3026 if (mono_error_set_pending_exception (&error))
3031 if (((MonoException*)exc)->stack_trace) {
3032 MonoError inner_error;
3033 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3034 if (is_ok (&inner_error)) {
3036 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3038 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3041 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3043 mono_set_pending_exception ((MonoException*)exc);
3046 mono_method_return_message_restore (method, params, out_args, &error);
3047 mono_error_set_pending_exception (&error);
3054 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3056 MonoType *t = mono_type_get_underlying_type (return_type);
3058 if (return_type->byref)
3059 return_type = &mono_defaults.int_class->byval_arg;
3062 case MONO_TYPE_VOID:
3063 g_assert_not_reached ();
3066 case MONO_TYPE_STRING:
3067 case MONO_TYPE_CLASS:
3068 case MONO_TYPE_OBJECT:
3069 case MONO_TYPE_ARRAY:
3070 case MONO_TYPE_SZARRAY:
3074 case MONO_TYPE_BOOLEAN:
3077 case MONO_TYPE_CHAR:
3087 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3088 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3090 case MONO_TYPE_GENERICINST:
3091 if (!mono_type_generic_inst_is_valuetype (t))
3094 case MONO_TYPE_VALUETYPE: {
3095 MonoClass *klass = mono_class_from_mono_type (return_type);
3096 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3097 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3101 case MONO_TYPE_MVAR: {
3102 MonoClass *klass = mono_class_from_mono_type (return_type);
3103 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3107 g_warning ("type 0x%x not handled", return_type->type);
3108 g_assert_not_reached ();
3111 mono_mb_emit_byte (mb, CEE_RET);
3114 #endif /* DISABLE_JIT */
3117 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3119 MonoMethodSignature *sig;
3120 MonoMethodBuilder *mb;
3125 MonoGenericContext *ctx = NULL;
3126 MonoMethod *orig_method = NULL;
3128 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3129 !strcmp (method->name, "EndInvoke"));
3132 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3134 if (method->is_inflated) {
3135 orig_method = method;
3136 ctx = &((MonoMethodInflated*)method)->context;
3137 method = ((MonoMethodInflated*)method)->declaring;
3140 sig = mono_signature_no_pinvoke (method);
3146 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3147 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3151 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3152 (GHashFunc)mono_signature_hash,
3153 (GCompareFunc)mono_metadata_signature_equal);
3154 if ((res = mono_marshal_find_in_cache (cache, sig)))
3158 g_assert (sig->hasthis);
3160 name = mono_signature_to_name (sig, "end_invoke");
3162 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3164 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3168 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3170 mono_mb_emit_ldarg (mb, 0);
3171 mono_mb_emit_ldloc (mb, params_var);
3172 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3174 if (sig->ret->type == MONO_TYPE_VOID) {
3175 mono_mb_emit_byte (mb, CEE_POP);
3176 mono_mb_emit_byte (mb, CEE_RET);
3178 mono_mb_emit_restore_result (mb, sig->ret);
3183 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3184 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3186 res = mono_mb_create_and_cache (cache, sig,
3187 mb, sig, sig->param_count + 16);
3196 MonoMethodSignature *sig;
3198 } SignaturePointerPair;
3201 signature_pointer_pair_hash (gconstpointer data)
3203 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3205 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3209 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3211 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3212 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3216 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3218 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3220 return pair->pointer == user_data;
3224 free_signature_pointer_pair (SignaturePointerPair *pair)
3230 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3232 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3234 MonoMethodBuilder *mb;
3237 gpointer cache_key = NULL;
3238 SignaturePointerPair key;
3239 SignaturePointerPair *new_key;
3240 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3241 int pos0, pos1, pos2;
3243 MonoClass *target_class = NULL;
3244 gboolean closed_over_null = FALSE;
3245 MonoGenericContext *ctx = NULL;
3246 MonoGenericContainer *container = NULL;
3247 MonoMethod *orig_method = NULL;
3249 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3253 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3254 !strcmp (method->name, "Invoke"));
3256 invoke_sig = sig = mono_signature_no_pinvoke (method);
3259 * If the delegate target is null, and the target method is not static, a virtual
3260 * call is made to that method with the first delegate argument as this. This is
3261 * a non-documented .NET feature.
3264 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3265 if (target_method->is_inflated) {
3267 MonoType *target_type;
3269 g_assert (method->signature->hasthis);
3270 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3271 mono_method_get_context (method), &error);
3272 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3273 target_class = mono_class_from_mono_type (target_type);
3275 target_class = target_method->klass;
3278 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3281 if (static_method_with_first_arg_bound) {
3282 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3283 g_assert (!callvirt);
3284 invoke_sig = mono_method_signature (target_method);
3288 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3290 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3291 orig_method = method;
3292 ctx = &((MonoMethodInflated*)method)->context;
3293 method = ((MonoMethodInflated*)method)->declaring;
3295 container = mono_method_get_generic_container (method);
3297 container = method->klass->generic_container;
3298 g_assert (container);
3300 invoke_sig = sig = mono_signature_no_pinvoke (method);
3307 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3308 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3311 cache_key = method->klass;
3312 } else if (static_method_with_first_arg_bound) {
3313 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3314 (GHashFunc)mono_signature_hash,
3315 (GCompareFunc)mono_metadata_signature_equal);
3317 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3319 res = mono_marshal_find_in_cache (cache, invoke_sig);
3322 cache_key = invoke_sig;
3323 } else if (callvirt) {
3324 GHashTable **cache_ptr;
3326 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3328 /* We need to cache the signature+method pair */
3329 mono_marshal_lock ();
3331 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3333 key.sig = invoke_sig;
3334 key.pointer = target_method;
3335 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3336 mono_marshal_unlock ();
3340 // Inflated methods should not be in this cache because it's not stored on the imageset.
3341 g_assert (!method->is_inflated);
3342 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3343 (GHashFunc)mono_signature_hash,
3344 (GCompareFunc)mono_metadata_signature_equal);
3345 res = mono_marshal_find_in_cache (cache, sig);
3351 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3352 static_sig->hasthis = 0;
3353 if (!static_method_with_first_arg_bound)
3354 invoke_sig = static_sig;
3356 if (static_method_with_first_arg_bound)
3357 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3358 else if (closed_over_null)
3359 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3361 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3363 name = mono_signature_to_name (invoke_sig, "invoke");
3365 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3367 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3371 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3373 /* allocate local 0 (object) */
3374 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3375 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3376 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3377 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3378 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3381 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3383 g_assert (sig->hasthis);
3386 * {type: sig->ret} res;
3387 * if (delegates == null) {
3388 * return this.<target> ( args .. );
3390 * int i = 0, len = this.delegates.Length;
3392 * res = this.delegates [i].Invoke ( args .. );
3393 * } while (++i < len);
3398 /* this wrapper can be used in unmanaged-managed transitions */
3399 emit_thread_interrupt_checkpoint (mb);
3401 /* delegates = this.delegates */
3402 mono_mb_emit_ldarg (mb, 0);
3403 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3404 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3405 mono_mb_emit_stloc (mb, local_delegates);
3408 /* if (delegates == null) */
3409 mono_mb_emit_ldloc (mb, local_delegates);
3410 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3412 /* return target.<target_method|method_ptr> ( args .. ); */
3414 /* target = d.target; */
3415 mono_mb_emit_ldarg (mb, 0);
3416 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3417 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3418 mono_mb_emit_stloc (mb, local_target);
3420 /*static methods with bound first arg can have null target and still be bound*/
3421 if (!static_method_with_first_arg_bound) {
3422 /* if target != null */
3423 mono_mb_emit_ldloc (mb, local_target);
3424 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3426 /* then call this->method_ptr nonstatic */
3429 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3431 mono_mb_emit_ldloc (mb, local_target);
3432 for (i = 0; i < sig->param_count; ++i)
3433 mono_mb_emit_ldarg (mb, i + 1);
3434 mono_mb_emit_ldarg (mb, 0);
3435 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3436 mono_mb_emit_byte (mb, CEE_LDIND_I);
3437 mono_mb_emit_ldarg (mb, 0);
3438 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3439 mono_mb_emit_byte (mb, CEE_LDIND_I);
3440 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3441 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3442 mono_mb_emit_byte (mb, CEE_RET);
3445 /* else [target == null] call this->method_ptr static */
3446 mono_mb_patch_branch (mb, pos0);
3450 if (!closed_over_null) {
3451 if (target_class->valuetype) {
3452 mono_mb_emit_ldarg (mb, 1);
3453 for (i = 1; i < sig->param_count; ++i)
3454 mono_mb_emit_ldarg (mb, i + 1);
3455 mono_mb_emit_op (mb, CEE_CALL, target_method);
3457 mono_mb_emit_ldarg (mb, 1);
3458 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3459 for (i = 1; i < sig->param_count; ++i)
3460 mono_mb_emit_ldarg (mb, i + 1);
3461 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3464 mono_mb_emit_byte (mb, CEE_LDNULL);
3465 for (i = 0; i < sig->param_count; ++i)
3466 mono_mb_emit_ldarg (mb, i + 1);
3467 mono_mb_emit_op (mb, CEE_CALL, target_method);
3470 if (static_method_with_first_arg_bound) {
3471 mono_mb_emit_ldloc (mb, local_target);
3472 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3473 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3475 for (i = 0; i < sig->param_count; ++i)
3476 mono_mb_emit_ldarg (mb, i + 1);
3477 mono_mb_emit_ldarg (mb, 0);
3478 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3479 mono_mb_emit_byte (mb, CEE_LDIND_I);
3480 mono_mb_emit_ldarg (mb, 0);
3481 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3482 mono_mb_emit_byte (mb, CEE_LDIND_I);
3483 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3484 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3487 mono_mb_emit_byte (mb, CEE_RET);
3489 /* else [delegates != null] */
3490 mono_mb_patch_branch (mb, pos2);
3492 /* len = delegates.Length; */
3493 mono_mb_emit_ldloc (mb, local_delegates);
3494 mono_mb_emit_byte (mb, CEE_LDLEN);
3495 mono_mb_emit_byte (mb, CEE_CONV_I4);
3496 mono_mb_emit_stloc (mb, local_len);
3499 mono_mb_emit_icon (mb, 0);
3500 mono_mb_emit_stloc (mb, local_i);
3502 pos1 = mono_mb_get_label (mb);
3504 /* d = delegates [i]; */
3505 mono_mb_emit_ldloc (mb, local_delegates);
3506 mono_mb_emit_ldloc (mb, local_i);
3507 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3508 mono_mb_emit_stloc (mb, local_d);
3510 /* res = d.Invoke ( args .. ); */
3511 mono_mb_emit_ldloc (mb, local_d);
3512 for (i = 0; i < sig->param_count; i++)
3513 mono_mb_emit_ldarg (mb, i + 1);
3515 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3518 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3519 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3522 mono_mb_emit_stloc (mb, local_res);
3525 mono_mb_emit_add_to_local (mb, local_i, 1);
3528 mono_mb_emit_ldloc (mb, local_i);
3529 mono_mb_emit_ldloc (mb, local_len);
3530 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3534 mono_mb_emit_ldloc (mb, local_res);
3535 mono_mb_emit_byte (mb, CEE_RET);
3537 mb->skip_visibility = 1;
3538 #endif /* DISABLE_JIT */
3540 info = mono_wrapper_info_create (mb, subtype);
3545 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3546 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3547 } else if (callvirt) {
3548 new_key = g_new0 (SignaturePointerPair, 1);
3551 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3555 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3559 /* mono_method_print_code (res); */
3565 * the returned method invokes all methods in a multicast delegate.
3568 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3570 gboolean callvirt = FALSE;
3571 gboolean static_method_with_first_arg_bound = FALSE;
3572 MonoMethod *target_method = NULL;
3573 MonoMethodSignature *sig;
3575 sig = mono_signature_no_pinvoke (method);
3577 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3579 target_method = del->method;
3582 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3583 static_method_with_first_arg_bound = TRUE;
3584 target_method = del->method;
3587 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3591 MonoMethodSignature *ctor_sig;
3592 MonoMethodSignature *sig;
3595 /* protected by the marshal lock, contains CtorSigPair pointers */
3596 static GSList *strsig_list = NULL;
3598 static MonoMethodSignature *
3599 lookup_string_ctor_signature (MonoMethodSignature *sig)
3601 MonoMethodSignature *callsig;
3605 mono_marshal_lock ();
3607 for (item = strsig_list; item; item = item->next) {
3608 cs = (CtorSigPair *)item->data;
3609 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3610 * because it is lock-free.
3612 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3617 mono_marshal_unlock ();
3621 static MonoMethodSignature *
3622 add_string_ctor_signature (MonoMethod *method)
3624 MonoMethodSignature *callsig;
3627 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3628 callsig->ret = &mono_defaults.string_class->byval_arg;
3629 cs = g_new (CtorSigPair, 1);
3631 cs->ctor_sig = mono_method_signature (method);
3633 mono_marshal_lock ();
3634 strsig_list = g_slist_prepend (strsig_list, cs);
3635 mono_marshal_unlock ();
3640 * mono_marshal_get_string_ctor_signature:
3642 * Return the modified signature used by string ctors (they return the newly created
3645 MonoMethodSignature*
3646 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3648 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3650 sig = add_string_ctor_signature (method);
3656 get_runtime_invoke_type (MonoType *t, gboolean ret)
3659 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3661 /* Can't share this with 'I' as that needs another indirection */
3662 return &mono_defaults.int_class->this_arg;
3665 if (MONO_TYPE_IS_REFERENCE (t))
3666 return &mono_defaults.object_class->byval_arg;
3669 /* The result needs to be boxed */
3674 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3677 return &mono_defaults.sbyte_class->byval_arg;
3679 return &mono_defaults.int16_class->byval_arg;
3681 return &mono_defaults.int32_class->byval_arg;
3684 return &mono_defaults.int64_class->byval_arg;
3685 case MONO_TYPE_BOOLEAN:
3686 return &mono_defaults.byte_class->byval_arg;
3687 case MONO_TYPE_CHAR:
3688 return &mono_defaults.uint16_class->byval_arg;
3690 return &mono_defaults.int_class->byval_arg;
3691 case MONO_TYPE_VALUETYPE:
3692 if (t->data.klass->enumtype) {
3693 t = mono_class_enum_basetype (t->data.klass);
3703 * mono_marshal_get_runtime_invoke_sig:
3705 * Return a common signature used for sharing runtime invoke wrappers.
3707 static MonoMethodSignature*
3708 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3710 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3713 res->generic_param_count = 0;
3714 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3715 for (i = 0; i < res->param_count; ++i)
3716 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3722 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3724 /* Can't share wrappers which return a vtype since it needs to be boxed */
3725 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))
3728 return mono_metadata_signature_equal (sig1, sig2);
3736 * Emit the call to the wrapper method from a runtime invoke wrapper.
3739 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3740 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3742 gboolean virtual_, gboolean need_direct_wrapper)
3744 static MonoString *string_dummy = NULL;
3746 int *tmp_nullable_locals;
3747 gboolean void_ret = FALSE;
3748 gboolean string_ctor = method && method->string_ctor;
3750 /* to make it work with our special string constructors */
3751 if (!string_dummy) {
3752 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3753 string_dummy = mono_string_new_wrapper ("dummy");
3757 g_assert (sig->hasthis);
3758 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3763 if (mono_gc_is_moving ()) {
3764 mono_mb_emit_ptr (mb, &string_dummy);
3765 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3767 mono_mb_emit_ptr (mb, string_dummy);
3770 mono_mb_emit_ldarg (mb, 0);
3774 tmp_nullable_locals = g_new0 (int, sig->param_count);
3776 for (i = 0; i < sig->param_count; i++) {
3777 MonoType *t = sig->params [i];
3780 mono_mb_emit_ldarg (mb, 1);
3782 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3783 mono_mb_emit_byte (mb, CEE_ADD);
3787 mono_mb_emit_byte (mb, CEE_LDIND_I);
3788 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3789 * So to make this work we unbox it to a local variablee and push a reference to that.
3791 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3792 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3794 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3795 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3796 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3801 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3802 type = sig->params [i]->type;
3806 case MONO_TYPE_BOOLEAN:
3810 case MONO_TYPE_CHAR:
3819 mono_mb_emit_byte (mb, CEE_LDIND_I);
3820 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3822 case MONO_TYPE_STRING:
3823 case MONO_TYPE_CLASS:
3824 case MONO_TYPE_ARRAY:
3826 case MONO_TYPE_SZARRAY:
3827 case MONO_TYPE_OBJECT:
3828 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3830 case MONO_TYPE_GENERICINST:
3831 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3832 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3837 case MONO_TYPE_VALUETYPE:
3838 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3839 type = mono_class_enum_basetype (t->data.klass)->type;
3842 mono_mb_emit_byte (mb, CEE_LDIND_I);
3843 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3844 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3845 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3846 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3848 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3852 g_assert_not_reached ();
3857 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3858 } else if (need_direct_wrapper) {
3859 mono_mb_emit_op (mb, CEE_CALL, method);
3861 mono_mb_emit_ldarg (mb, 3);
3862 mono_mb_emit_calli (mb, callsig);
3865 if (sig->ret->byref) {
3867 g_assert_not_reached ();
3870 switch (sig->ret->type) {
3871 case MONO_TYPE_VOID:
3875 case MONO_TYPE_BOOLEAN:
3876 case MONO_TYPE_CHAR:
3889 case MONO_TYPE_VALUETYPE:
3890 case MONO_TYPE_TYPEDBYREF:
3891 case MONO_TYPE_GENERICINST:
3892 /* box value types */
3893 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3895 case MONO_TYPE_STRING:
3896 case MONO_TYPE_CLASS:
3897 case MONO_TYPE_ARRAY:
3898 case MONO_TYPE_SZARRAY:
3899 case MONO_TYPE_OBJECT:
3903 /* The result is an IntPtr */
3904 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3907 g_assert_not_reached ();
3911 mono_mb_emit_stloc (mb, loc_res);
3913 /* Convert back nullable-byref arguments */
3914 for (i = 0; i < sig->param_count; i++) {
3915 MonoType *t = sig->params [i];
3918 * Box the result and put it back into the array, the caller will have
3919 * to obtain it from there.
3921 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3922 mono_mb_emit_ldarg (mb, 1);
3923 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3924 mono_mb_emit_byte (mb, CEE_ADD);
3926 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3927 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3929 mono_mb_emit_byte (mb, CEE_STIND_REF);
3933 g_free (tmp_nullable_locals);
3937 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3938 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3939 gboolean virtual_, gboolean need_direct_wrapper)
3942 MonoExceptionClause *clause;
3943 int loc_res, loc_exc;
3945 /* The wrapper looks like this:
3951 * } catch (Exception e) {
3959 /* allocate local 0 (object) tmp */
3960 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3961 /* allocate local 1 (object) exc */
3962 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3964 /* *exc is assumed to be initialized to NULL by the caller */
3966 mono_mb_emit_byte (mb, CEE_LDARG_2);
3967 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3972 labels [1] = mono_mb_get_label (mb);
3973 emit_thread_force_interrupt_checkpoint (mb);
3974 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3976 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3978 /* Add a try clause around the call */
3979 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3980 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3981 clause->data.catch_class = mono_defaults.exception_class;
3982 clause->try_offset = labels [1];
3983 clause->try_len = mono_mb_get_label (mb) - labels [1];
3985 clause->handler_offset = mono_mb_get_label (mb);
3988 mono_mb_emit_stloc (mb, loc_exc);
3989 mono_mb_emit_byte (mb, CEE_LDARG_2);
3990 mono_mb_emit_ldloc (mb, loc_exc);
3991 mono_mb_emit_byte (mb, CEE_STIND_REF);
3993 mono_mb_emit_branch (mb, CEE_LEAVE);
3995 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3997 mono_mb_set_clauses (mb, 1, clause);
3999 mono_mb_patch_branch (mb, labels [2]);
4000 mono_mb_emit_ldloc (mb, loc_res);
4001 mono_mb_emit_byte (mb, CEE_RET);
4006 mono_mb_patch_branch (mb, labels [0]);
4007 emit_thread_force_interrupt_checkpoint (mb);
4008 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4010 mono_mb_emit_ldloc (mb, 0);
4011 mono_mb_emit_byte (mb, CEE_RET);
4016 * generates IL code for the runtime invoke function
4017 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4019 * we also catch exceptions if exc != null
4020 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4021 * it means that the compiled code for METHOD does not have to be looked up
4022 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4023 * its METHOD argument.
4026 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4028 MonoMethodSignature *sig, *csig, *callsig;
4029 MonoMethodBuilder *mb;
4030 GHashTable *cache = NULL;
4031 MonoClass *target_klass;
4032 MonoMethod *res = NULL;
4033 static MonoMethodSignature *cctor_signature = NULL;
4034 static MonoMethodSignature *finalize_signature = NULL;
4036 const char *param_names [16];
4037 gboolean need_direct_wrapper = FALSE;
4042 if (!cctor_signature) {
4043 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4044 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4046 if (!finalize_signature) {
4047 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4048 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4049 finalize_signature->hasthis = 1;
4053 need_direct_wrapper = TRUE;
4056 * Use a separate cache indexed by methods to speed things up and to avoid the
4057 * boundless mempool growth caused by the signature_dup stuff below.
4060 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4062 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4064 res = mono_marshal_find_in_cache (cache, method);
4068 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4069 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4071 * Array Get/Set/Address methods. The JIT implements them using inline code
4072 * so we need to create an invoke wrapper which calls the method directly.
4074 need_direct_wrapper = TRUE;
4077 if (method->string_ctor) {
4078 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4080 callsig = add_string_ctor_signature (method);
4081 /* Can't share this as we push a string as this */
4082 need_direct_wrapper = TRUE;
4084 if (method_is_dynamic (method))
4085 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4087 callsig = mono_method_signature (method);
4090 sig = mono_method_signature (method);
4092 target_klass = get_wrapper_target_class (method->klass->image);
4094 /* Try to share wrappers for non-corlib methods with simple signatures */
4095 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4096 callsig = cctor_signature;
4097 target_klass = mono_defaults.object_class;
4098 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4099 callsig = finalize_signature;
4100 target_klass = mono_defaults.object_class;
4103 if (need_direct_wrapper) {
4104 /* Already searched at the start */
4106 MonoMethodSignature *tmp_sig;
4108 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4109 GHashTable **cache_table = NULL;
4111 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4112 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4114 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4116 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4117 (GCompareFunc)runtime_invoke_signature_equal);
4119 /* from mono_marshal_find_in_cache */
4120 mono_marshal_lock ();
4121 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4122 mono_marshal_unlock ();
4129 /* Make a copy of the signature from the image mempool */
4131 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4135 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4137 csig->ret = &mono_defaults.object_class->byval_arg;
4138 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4139 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4141 csig->params [0] = &mono_defaults.object_class->byval_arg;
4142 csig->params [1] = &mono_defaults.int_class->byval_arg;
4143 csig->params [2] = &mono_defaults.int_class->byval_arg;
4144 csig->params [3] = &mono_defaults.int_class->byval_arg;
4147 /* This is called from runtime code so it has to be cdecl */
4148 csig->call_convention = MONO_CALL_C;
4151 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4152 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4156 param_names [0] = "this";
4157 param_names [1] = "params";
4158 param_names [2] = "exc";
4159 param_names [3] = "method";
4160 mono_mb_set_param_names (mb, param_names);
4162 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4165 if (need_direct_wrapper) {
4167 mb->skip_visibility = 1;
4169 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4170 info->d.runtime_invoke.method = method;
4171 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4173 /* taken from mono_mb_create_and_cache */
4174 mono_marshal_lock ();
4175 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4176 mono_marshal_unlock ();
4178 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4179 info->d.runtime_invoke.sig = callsig;
4181 /* Somebody may have created it before us */
4184 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4186 mono_marshal_lock ();
4187 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4189 GHashTable *direct_cache;
4191 g_hash_table_insert (cache, callsig, res);
4192 /* Can't insert it into wrapper_hash since the key is a signature */
4193 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4195 g_hash_table_insert (direct_cache, method, res);
4197 mono_free_method (newm);
4199 mono_marshal_unlock ();
4202 /* end mono_mb_create_and_cache */
4211 * mono_marshal_get_runtime_invoke_dynamic:
4213 * Return a method which can be used to invoke managed methods from native code
4215 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4216 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4217 * ARGS should point to an architecture specific structure containing
4218 * the arguments and space for the return value.
4219 * The other arguments are the same as for runtime_invoke (), except that
4220 * ARGS should contain the this argument too.
4221 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4222 * is only one copy of it, which is useful in full-aot.
4223 * The wrapper info for the wrapper is a WrapperInfo structure.
4226 mono_marshal_get_runtime_invoke_dynamic (void)
4228 static MonoMethod *method;
4229 MonoMethodSignature *csig;
4230 MonoExceptionClause *clause;
4231 MonoMethodBuilder *mb;
4239 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4241 csig->ret = &mono_defaults.void_class->byval_arg;
4242 csig->params [0] = &mono_defaults.int_class->byval_arg;
4243 csig->params [1] = &mono_defaults.int_class->byval_arg;
4244 csig->params [2] = &mono_defaults.int_class->byval_arg;
4245 csig->params [3] = &mono_defaults.int_class->byval_arg;
4247 name = g_strdup ("runtime_invoke_dynamic");
4248 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4252 /* allocate local 0 (object) tmp */
4253 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4254 /* allocate local 1 (object) exc */
4255 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4257 /* cond set *exc to null */
4258 mono_mb_emit_byte (mb, CEE_LDARG_1);
4259 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4260 mono_mb_emit_byte (mb, 3);
4261 mono_mb_emit_byte (mb, CEE_LDARG_1);
4262 mono_mb_emit_byte (mb, CEE_LDNULL);
4263 mono_mb_emit_byte (mb, CEE_STIND_REF);
4265 emit_thread_force_interrupt_checkpoint (mb);
4267 mono_mb_emit_byte (mb, CEE_LDARG_0);
4268 mono_mb_emit_byte (mb, CEE_LDARG_2);
4269 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4270 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4272 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4274 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4275 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4276 clause->try_len = mono_mb_get_label (mb);
4279 clause->data.filter_offset = mono_mb_get_label (mb);
4281 mono_mb_emit_byte (mb, CEE_POP);
4282 mono_mb_emit_byte (mb, CEE_LDARG_1);
4283 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4284 mono_mb_emit_byte (mb, CEE_PREFIX1);
4285 mono_mb_emit_byte (mb, CEE_CGT_UN);
4286 mono_mb_emit_byte (mb, CEE_PREFIX1);
4287 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4289 clause->handler_offset = mono_mb_get_label (mb);
4292 /* store exception */
4293 mono_mb_emit_stloc (mb, 1);
4295 mono_mb_emit_byte (mb, CEE_LDARG_1);
4296 mono_mb_emit_ldloc (mb, 1);
4297 mono_mb_emit_byte (mb, CEE_STIND_REF);
4299 mono_mb_emit_byte (mb, CEE_LDNULL);
4300 mono_mb_emit_stloc (mb, 0);
4302 /* Check for the abort exception */
4303 mono_mb_emit_ldloc (mb, 1);
4304 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4305 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4307 /* Delay the abort exception */
4308 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4310 mono_mb_patch_short_branch (mb, posna);
4311 mono_mb_emit_branch (mb, CEE_LEAVE);
4313 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4315 mono_mb_set_clauses (mb, 1, clause);
4318 mono_mb_patch_branch (mb, pos);
4319 //mono_mb_emit_ldloc (mb, 0);
4320 mono_mb_emit_byte (mb, CEE_RET);
4321 #endif /* DISABLE_JIT */
4323 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4325 mono_marshal_lock ();
4326 /* double-checked locking */
4328 method = mono_mb_create (mb, csig, 16, info);
4330 mono_marshal_unlock ();
4338 * mono_marshal_get_runtime_invoke_for_sig:
4340 * Return a runtime invoke wrapper for a given signature.
4343 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4345 MonoMethodSignature *csig, *callsig;
4346 MonoMethodBuilder *mb;
4348 GHashTable *cache = NULL;
4349 GHashTable **cache_table = NULL;
4350 MonoMethod *res = NULL;
4352 const char *param_names [16];
4355 /* A simplified version of mono_marshal_get_runtime_invoke */
4357 image = mono_defaults.corlib;
4359 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4361 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4363 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4364 (GCompareFunc)runtime_invoke_signature_equal);
4366 /* from mono_marshal_find_in_cache */
4367 mono_marshal_lock ();
4368 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4369 mono_marshal_unlock ();
4376 /* Make a copy of the signature from the image mempool */
4377 callsig = mono_metadata_signature_dup_full (image, callsig);
4379 csig = mono_metadata_signature_alloc (image, 4);
4380 csig->ret = &mono_defaults.object_class->byval_arg;
4381 csig->params [0] = &mono_defaults.object_class->byval_arg;
4382 csig->params [1] = &mono_defaults.int_class->byval_arg;
4383 csig->params [2] = &mono_defaults.int_class->byval_arg;
4384 csig->params [3] = &mono_defaults.int_class->byval_arg;
4387 /* This is called from runtime code so it has to be cdecl */
4388 csig->call_convention = MONO_CALL_C;
4391 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4392 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4396 param_names [0] = "this";
4397 param_names [1] = "params";
4398 param_names [2] = "exc";
4399 param_names [3] = "method";
4400 mono_mb_set_param_names (mb, param_names);
4402 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4405 /* taken from mono_mb_create_and_cache */
4406 mono_marshal_lock ();
4407 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4408 mono_marshal_unlock ();
4410 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4411 info->d.runtime_invoke.sig = callsig;
4413 /* Somebody may have created it before us */
4416 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4418 mono_marshal_lock ();
4419 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4422 g_hash_table_insert (cache, callsig, res);
4424 mono_free_method (newm);
4426 mono_marshal_unlock ();
4429 /* end mono_mb_create_and_cache */
4438 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4440 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4441 klass->name_space, klass->name);
4443 mono_mb_emit_exception_marshal_directive (mb, msg);
4448 * generates IL code for the icall wrapper (the generated method
4449 * calls the unmanaged code in func)
4450 * The wrapper info for the wrapper is a WrapperInfo structure.
4453 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4455 MonoMethodSignature *csig, *csig2;
4456 MonoMethodBuilder *mb;
4461 g_assert (sig->pinvoke);
4463 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4465 mb->method->save_lmf = 1;
4467 /* Add an explicit this argument */
4469 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4471 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4475 mono_mb_emit_byte (mb, CEE_LDARG_0);
4477 for (i = 0; i < sig->param_count; i++)
4478 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4480 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4481 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4482 mono_mb_emit_calli (mb, csig2);
4483 if (check_exceptions)
4484 emit_thread_interrupt_checkpoint (mb);
4485 mono_mb_emit_byte (mb, CEE_RET);
4488 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4490 if (csig->call_convention == MONO_CALL_VARARG)
4491 csig->call_convention = 0;
4493 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4494 info->d.icall.func = (gpointer)func;
4495 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4502 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4503 MonoMarshalSpec *spec,
4504 int conv_arg, MonoType **conv_arg_type,
4505 MarshalAction action)
4508 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4509 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4515 static MonoClass *ICustomMarshaler = NULL;
4516 static MonoMethod *cleanup_native, *cleanup_managed;
4517 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4518 MonoMethod *get_instance = NULL;
4519 MonoMethodBuilder *mb = m->mb;
4520 char *exception_msg = NULL;
4524 if (!ICustomMarshaler) {
4525 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4527 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4528 goto handle_exception;
4531 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4532 g_assert (cleanup_native);
4533 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4534 g_assert (cleanup_managed);
4535 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4536 g_assert (marshal_managed_to_native);
4537 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4538 g_assert (marshal_native_to_managed);
4540 mono_memory_barrier ();
4541 ICustomMarshaler = klass;
4544 if (spec->data.custom_data.image)
4545 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4547 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4548 g_assert (mtype != NULL);
4549 mono_error_assert_ok (&error);
4550 mklass = mono_class_from_mono_type (mtype);
4551 g_assert (mklass != NULL);
4553 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4554 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4556 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4558 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4559 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4560 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4561 (get_sig->params [0]->type != MONO_TYPE_STRING))
4562 get_instance = NULL;
4566 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);
4569 /* Throw exception and emit compensation code if neccesary */
4570 if (exception_msg) {
4572 case MARSHAL_ACTION_CONV_IN:
4573 case MARSHAL_ACTION_CONV_RESULT:
4574 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4575 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4576 mono_mb_emit_byte (mb, CEE_POP);
4578 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4579 g_free (exception_msg);
4582 case MARSHAL_ACTION_PUSH:
4583 mono_mb_emit_byte (mb, CEE_LDNULL);
4591 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4592 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4595 case MARSHAL_ACTION_CONV_IN:
4597 case MONO_TYPE_CLASS:
4598 case MONO_TYPE_OBJECT:
4599 case MONO_TYPE_STRING:
4600 case MONO_TYPE_ARRAY:
4601 case MONO_TYPE_SZARRAY:
4602 case MONO_TYPE_VALUETYPE:
4606 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4607 g_assert_not_reached ();
4611 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4613 mono_mb_emit_byte (mb, CEE_LDNULL);
4614 mono_mb_emit_stloc (mb, conv_arg);
4616 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4619 /* Minic MS.NET behavior */
4620 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4623 /* Check for null */
4624 mono_mb_emit_ldarg (mb, argnum);
4626 mono_mb_emit_byte (mb, CEE_LDIND_I);
4627 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4629 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4631 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4633 mono_mb_emit_ldarg (mb, argnum);
4635 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4637 if (t->type == MONO_TYPE_VALUETYPE) {
4639 * Since we can't determine the type of the argument, we
4640 * will assume the unmanaged function takes a pointer.
4642 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4644 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4647 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4648 mono_mb_emit_stloc (mb, conv_arg);
4650 mono_mb_patch_branch (mb, pos2);
4653 case MARSHAL_ACTION_CONV_OUT:
4654 /* Check for null */
4655 mono_mb_emit_ldloc (mb, conv_arg);
4656 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4659 mono_mb_emit_ldarg (mb, argnum);
4661 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4663 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4665 mono_mb_emit_ldloc (mb, conv_arg);
4666 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4667 mono_mb_emit_byte (mb, CEE_STIND_REF);
4668 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4669 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4671 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4673 mono_mb_emit_ldloc (mb, conv_arg);
4674 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4676 /* We have nowhere to store the result */
4677 mono_mb_emit_byte (mb, CEE_POP);
4680 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4682 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4684 mono_mb_emit_ldloc (mb, conv_arg);
4686 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4688 mono_mb_patch_branch (mb, pos2);
4691 case MARSHAL_ACTION_PUSH:
4693 mono_mb_emit_ldloc_addr (mb, conv_arg);
4695 mono_mb_emit_ldloc (mb, conv_arg);
4698 case MARSHAL_ACTION_CONV_RESULT:
4699 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4701 mono_mb_emit_stloc (mb, 3);
4703 mono_mb_emit_ldloc (mb, 3);
4704 mono_mb_emit_stloc (mb, loc1);
4706 /* Check for null */
4707 mono_mb_emit_ldloc (mb, 3);
4708 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4710 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4712 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4713 mono_mb_emit_byte (mb, CEE_DUP);
4715 mono_mb_emit_ldloc (mb, 3);
4716 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4717 mono_mb_emit_stloc (mb, 3);
4719 mono_mb_emit_ldloc (mb, loc1);
4720 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4722 mono_mb_patch_branch (mb, pos2);
4725 case MARSHAL_ACTION_MANAGED_CONV_IN:
4726 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4728 mono_mb_emit_byte (mb, CEE_LDNULL);
4729 mono_mb_emit_stloc (mb, conv_arg);
4731 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4734 /* Check for null */
4735 mono_mb_emit_ldarg (mb, argnum);
4737 mono_mb_emit_byte (mb, CEE_LDIND_I);
4738 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4740 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4741 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4743 mono_mb_emit_ldarg (mb, argnum);
4745 mono_mb_emit_byte (mb, CEE_LDIND_I);
4747 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4748 mono_mb_emit_stloc (mb, conv_arg);
4750 mono_mb_patch_branch (mb, pos2);
4753 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4754 g_assert (!t->byref);
4756 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4758 mono_mb_emit_stloc (mb, 3);
4760 mono_mb_emit_ldloc (mb, 3);
4761 mono_mb_emit_stloc (mb, loc1);
4763 /* Check for null */
4764 mono_mb_emit_ldloc (mb, 3);
4765 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4767 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4768 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4769 mono_mb_emit_byte (mb, CEE_DUP);
4771 mono_mb_emit_ldloc (mb, 3);
4772 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4773 mono_mb_emit_stloc (mb, 3);
4775 mono_mb_emit_ldloc (mb, loc1);
4776 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4778 mono_mb_patch_branch (mb, pos2);
4781 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4783 /* Check for null */
4784 mono_mb_emit_ldloc (mb, conv_arg);
4785 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4788 mono_mb_emit_ldarg (mb, argnum);
4790 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4792 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4794 mono_mb_emit_ldloc (mb, conv_arg);
4795 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4796 mono_mb_emit_byte (mb, CEE_STIND_I);
4799 /* Call CleanUpManagedData */
4800 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4802 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4804 mono_mb_emit_ldloc (mb, conv_arg);
4805 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4807 mono_mb_patch_branch (mb, pos2);
4811 g_assert_not_reached ();
4819 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4820 MonoMarshalSpec *spec,
4821 int conv_arg, MonoType **conv_arg_type,
4822 MarshalAction action)
4825 MonoMethodBuilder *mb = m->mb;
4828 case MARSHAL_ACTION_CONV_IN: {
4829 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4831 g_assert (t->type == MONO_TYPE_OBJECT);
4832 g_assert (!t->byref);
4834 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4835 mono_mb_emit_ldarg (mb, argnum);
4836 mono_mb_emit_icon (mb, encoding);
4837 mono_mb_emit_icon (mb, t->attrs);
4838 mono_mb_emit_icall (mb, mono_marshal_asany);
4839 mono_mb_emit_stloc (mb, conv_arg);
4843 case MARSHAL_ACTION_PUSH:
4844 mono_mb_emit_ldloc (mb, conv_arg);
4847 case MARSHAL_ACTION_CONV_OUT: {
4848 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4850 mono_mb_emit_ldarg (mb, argnum);
4851 mono_mb_emit_ldloc (mb, conv_arg);
4852 mono_mb_emit_icon (mb, encoding);
4853 mono_mb_emit_icon (mb, t->attrs);
4854 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4859 g_assert_not_reached ();
4866 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4867 MonoMarshalSpec *spec,
4868 int conv_arg, MonoType **conv_arg_type,
4869 MarshalAction action)
4872 MonoMethodBuilder *mb = m->mb;
4873 MonoClass *klass, *date_time_class;
4876 klass = mono_class_from_mono_type (t);
4878 date_time_class = mono_class_get_date_time_class ();
4881 case MARSHAL_ACTION_CONV_IN:
4882 if (klass == date_time_class) {
4883 /* Convert it to an OLE DATE type */
4884 static MonoMethod *to_oadate;
4887 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4888 g_assert (to_oadate);
4890 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4893 mono_mb_emit_ldarg (mb, argnum);
4894 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4897 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4899 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4901 mono_mb_emit_ldarg_addr (mb, argnum);
4902 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4903 mono_mb_emit_stloc (mb, conv_arg);
4907 mono_mb_patch_branch (mb, pos);
4911 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4912 klass->blittable || klass->enumtype)
4915 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4917 /* store the address of the source into local variable 0 */
4919 mono_mb_emit_ldarg (mb, argnum);
4921 mono_mb_emit_ldarg_addr (mb, argnum);
4923 mono_mb_emit_stloc (mb, 0);
4925 /* allocate space for the native struct and
4926 * store the address into local variable 1 (dest) */
4927 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4928 mono_mb_emit_byte (mb, CEE_PREFIX1);
4929 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4930 mono_mb_emit_stloc (mb, conv_arg);
4933 mono_mb_emit_ldloc (mb, 0);
4934 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4937 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4939 mono_mb_emit_ldloc (mb, conv_arg);
4940 mono_mb_emit_stloc (mb, 1);
4942 /* emit valuetype conversion code */
4943 emit_struct_conv (mb, klass, FALSE);
4947 mono_mb_patch_branch (mb, pos);
4950 case MARSHAL_ACTION_PUSH:
4951 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4953 g_assert (!t->byref);
4955 /* Have to change the signature since the vtype is passed byref */
4956 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4958 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4959 klass->blittable || klass->enumtype)
4960 mono_mb_emit_ldarg_addr (mb, argnum);
4962 mono_mb_emit_ldloc (mb, conv_arg);
4966 if (klass == date_time_class) {
4968 mono_mb_emit_ldloc_addr (mb, conv_arg);
4970 mono_mb_emit_ldloc (mb, conv_arg);
4974 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4975 klass->blittable || klass->enumtype) {
4976 mono_mb_emit_ldarg (mb, argnum);
4979 mono_mb_emit_ldloc (mb, conv_arg);
4981 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4982 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4986 case MARSHAL_ACTION_CONV_OUT:
4987 if (klass == date_time_class) {
4988 /* Convert from an OLE DATE type */
4989 static MonoMethod *from_oadate;
4994 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4996 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4997 g_assert (from_oadate);
4999 mono_mb_emit_ldarg (mb, argnum);
5000 mono_mb_emit_ldloc (mb, conv_arg);
5001 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5002 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5007 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5008 klass->blittable || klass->enumtype)
5012 /* dst = argument */
5013 mono_mb_emit_ldarg (mb, argnum);
5014 mono_mb_emit_stloc (mb, 1);
5016 mono_mb_emit_ldloc (mb, 1);
5017 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5019 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5020 /* src = tmp_locals [i] */
5021 mono_mb_emit_ldloc (mb, conv_arg);
5022 mono_mb_emit_stloc (mb, 0);
5024 /* emit valuetype conversion code */
5025 emit_struct_conv (mb, klass, TRUE);
5029 emit_struct_free (mb, klass, conv_arg);
5032 mono_mb_patch_branch (mb, pos);
5035 case MARSHAL_ACTION_CONV_RESULT:
5036 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5038 mono_mb_emit_stloc (mb, 3);
5042 /* load pointer to returned value type */
5043 g_assert (m->vtaddr_var);
5044 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5045 /* store the address of the source into local variable 0 */
5046 mono_mb_emit_stloc (mb, 0);
5048 mono_mb_emit_ldloc_addr (mb, 3);
5049 mono_mb_emit_stloc (mb, 1);
5051 /* emit valuetype conversion code */
5052 emit_struct_conv (mb, klass, TRUE);
5055 case MARSHAL_ACTION_MANAGED_CONV_IN:
5056 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5057 klass->blittable || klass->enumtype) {
5062 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5064 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5068 mono_mb_emit_ldarg (mb, argnum);
5070 mono_mb_emit_ldarg_addr (mb, argnum);
5071 mono_mb_emit_stloc (mb, 0);
5074 mono_mb_emit_ldloc (mb, 0);
5075 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5078 mono_mb_emit_ldloc_addr (mb, conv_arg);
5079 mono_mb_emit_stloc (mb, 1);
5081 /* emit valuetype conversion code */
5082 emit_struct_conv (mb, klass, TRUE);
5085 mono_mb_patch_branch (mb, pos);
5088 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5089 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5090 klass->blittable || klass->enumtype) {
5094 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5097 /* Check for null */
5098 mono_mb_emit_ldarg (mb, argnum);
5099 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5102 mono_mb_emit_ldloc_addr (mb, conv_arg);
5103 mono_mb_emit_stloc (mb, 0);
5106 mono_mb_emit_ldarg (mb, argnum);
5107 mono_mb_emit_stloc (mb, 1);
5109 /* emit valuetype conversion code */
5110 emit_struct_conv (mb, klass, FALSE);
5112 mono_mb_patch_branch (mb, pos2);
5115 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5116 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5117 klass->blittable || klass->enumtype) {
5118 mono_mb_emit_stloc (mb, 3);
5123 /* load pointer to returned value type */
5124 g_assert (m->vtaddr_var);
5125 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5127 /* store the address of the source into local variable 0 */
5128 mono_mb_emit_stloc (mb, 0);
5129 /* allocate space for the native struct and
5130 * store the address into dst_ptr */
5131 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5132 m->retobj_class = klass;
5133 g_assert (m->retobj_var);
5134 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5135 mono_mb_emit_byte (mb, CEE_CONV_I);
5136 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5137 mono_mb_emit_stloc (mb, 1);
5138 mono_mb_emit_ldloc (mb, 1);
5139 mono_mb_emit_stloc (mb, m->retobj_var);
5141 /* emit valuetype conversion code */
5142 emit_struct_conv (mb, klass, FALSE);
5146 g_assert_not_reached ();
5153 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5154 MonoMarshalSpec *spec,
5155 int conv_arg, MonoType **conv_arg_type,
5156 MarshalAction action)
5160 case MARSHAL_ACTION_CONV_IN:
5161 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5163 case MARSHAL_ACTION_MANAGED_CONV_IN:
5164 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5168 MonoMethodBuilder *mb = m->mb;
5169 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5170 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5174 case MARSHAL_ACTION_CONV_IN:
5175 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5176 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5179 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5182 mono_mb_emit_ldarg (mb, argnum);
5183 mono_mb_emit_byte (mb, CEE_LDIND_I);
5185 mono_mb_emit_ldarg (mb, argnum);
5188 if (conv == MONO_MARSHAL_CONV_INVALID) {
5189 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5190 mono_mb_emit_exception_marshal_directive (mb, msg);
5192 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5194 mono_mb_emit_stloc (mb, conv_arg);
5198 case MARSHAL_ACTION_CONV_OUT:
5199 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5200 if (conv == MONO_MARSHAL_CONV_INVALID) {
5201 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5202 mono_mb_emit_exception_marshal_directive (mb, msg);
5206 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5207 static MonoMethod *m;
5210 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5215 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5216 mono_mb_emit_exception_marshal_directive (mb, msg);
5221 * Have to allocate a new string with the same length as the original, and
5222 * copy the contents of the buffer pointed to by CONV_ARG into it.
5224 g_assert (t->byref);
5225 mono_mb_emit_ldarg (mb, argnum);
5226 mono_mb_emit_ldloc (mb, conv_arg);
5227 mono_mb_emit_ldarg (mb, argnum);
5228 mono_mb_emit_byte (mb, CEE_LDIND_I);
5229 mono_mb_emit_managed_call (mb, m, NULL);
5230 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5231 mono_mb_emit_byte (mb, CEE_STIND_REF);
5232 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5234 mono_mb_emit_ldarg (mb, argnum);
5235 mono_mb_emit_ldloc (mb, conv_arg);
5236 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5237 mono_mb_emit_byte (mb, stind_op);
5242 mono_mb_emit_ldloc (mb, conv_arg);
5243 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5244 mono_mb_emit_icall (mb, mono_free_bstr);
5246 mono_mb_emit_icall (mb, mono_marshal_free);
5250 case MARSHAL_ACTION_PUSH:
5251 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5252 mono_mb_emit_ldloc_addr (mb, conv_arg);
5254 mono_mb_emit_ldloc (mb, conv_arg);
5257 case MARSHAL_ACTION_CONV_RESULT:
5258 mono_mb_emit_stloc (mb, 0);
5260 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5261 if (conv == MONO_MARSHAL_CONV_INVALID) {
5262 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5263 mono_mb_emit_exception_marshal_directive (mb, msg);
5267 mono_mb_emit_ldloc (mb, 0);
5268 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5269 mono_mb_emit_stloc (mb, 3);
5271 /* free the string */
5272 mono_mb_emit_ldloc (mb, 0);
5273 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5274 mono_mb_emit_icall (mb, mono_free_bstr);
5276 mono_mb_emit_icall (mb, mono_marshal_free);
5279 case MARSHAL_ACTION_MANAGED_CONV_IN:
5280 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5282 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5285 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5289 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5290 if (conv == MONO_MARSHAL_CONV_INVALID) {
5291 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5292 mono_mb_emit_exception_marshal_directive (mb, msg);
5296 mono_mb_emit_ldarg (mb, argnum);
5298 mono_mb_emit_byte (mb, CEE_LDIND_I);
5299 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5300 mono_mb_emit_stloc (mb, conv_arg);
5303 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5307 mono_mb_emit_ldarg (mb, argnum);
5308 mono_mb_emit_ldloc (mb, conv_arg);
5309 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5310 mono_mb_emit_byte (mb, stind_op);
5315 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5316 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5317 /* We need to make a copy so the caller is able to free it */
5318 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5320 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5321 mono_mb_emit_stloc (mb, 3);
5325 g_assert_not_reached ();
5333 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5334 MonoMarshalSpec *spec, int conv_arg,
5335 MonoType **conv_arg_type, MarshalAction action)
5338 if (action == MARSHAL_ACTION_CONV_IN)
5339 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5341 MonoMethodBuilder *mb = m->mb;
5344 case MARSHAL_ACTION_CONV_IN: {
5345 MonoType *intptr_type;
5346 int dar_release_slot, pos;
5348 intptr_type = &mono_defaults.int_class->byval_arg;
5349 conv_arg = mono_mb_add_local (mb, intptr_type);
5350 *conv_arg_type = intptr_type;
5352 if (!sh_dangerous_add_ref)
5353 init_safe_handle ();
5355 mono_mb_emit_ldarg (mb, argnum);
5356 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5357 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5359 mono_mb_patch_branch (mb, pos);
5362 * My tests in show that ref SafeHandles are not really
5363 * passed as ref objects. Instead a NULL is passed as the
5366 mono_mb_emit_icon (mb, 0);
5367 mono_mb_emit_stloc (mb, conv_arg);
5371 /* Create local to hold the ref parameter to DangerousAddRef */
5372 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5374 /* set release = false; */
5375 mono_mb_emit_icon (mb, 0);
5376 mono_mb_emit_stloc (mb, dar_release_slot);
5378 /* safehandle.DangerousAddRef (ref release) */
5379 mono_mb_emit_ldarg (mb, argnum);
5380 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5381 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5383 /* Pull the handle field from SafeHandle */
5384 mono_mb_emit_ldarg (mb, argnum);
5385 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5386 mono_mb_emit_byte (mb, CEE_LDIND_I);
5387 mono_mb_emit_stloc (mb, conv_arg);
5392 case MARSHAL_ACTION_PUSH:
5394 mono_mb_emit_ldloc_addr (mb, conv_arg);
5396 mono_mb_emit_ldloc (mb, conv_arg);
5399 case MARSHAL_ACTION_CONV_OUT: {
5400 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5401 int dar_release_slot = conv_arg + 1;
5404 if (!sh_dangerous_release)
5405 init_safe_handle ();
5411 * My tests indicate that ref SafeHandles parameters are not actually
5412 * passed by ref, but instead a new Handle is created regardless of
5413 * whether a change happens in the unmanaged side.
5415 * Also, the Handle is created before calling into unmanaged code,
5416 * but we do not support that mechanism (getting to the original
5417 * handle) and it makes no difference where we create this
5419 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5421 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5424 /* refval = new SafeHandleDerived ()*/
5425 mono_mb_emit_ldarg (mb, argnum);
5426 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5427 mono_mb_emit_byte (mb, CEE_STIND_REF);
5429 /* refval.handle = returned_handle */
5430 mono_mb_emit_ldarg (mb, argnum);
5431 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5432 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5433 mono_mb_emit_ldloc (mb, conv_arg);
5434 mono_mb_emit_byte (mb, CEE_STIND_I);
5436 mono_mb_emit_ldloc (mb, dar_release_slot);
5437 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5438 mono_mb_emit_ldarg (mb, argnum);
5439 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5440 mono_mb_patch_branch (mb, label_next);
5445 case MARSHAL_ACTION_CONV_RESULT: {
5446 MonoMethod *ctor = NULL;
5447 int intptr_handle_slot;
5449 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5450 mono_mb_emit_byte (mb, CEE_POP);
5451 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5455 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5457 mono_mb_emit_byte (mb, CEE_POP);
5458 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5461 /* Store the IntPtr results into a local */
5462 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5463 mono_mb_emit_stloc (mb, intptr_handle_slot);
5465 /* Create return value */
5466 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5467 mono_mb_emit_stloc (mb, 3);
5469 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5470 mono_mb_emit_ldloc (mb, 3);
5471 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5472 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5473 mono_mb_emit_byte (mb, CEE_STIND_I);
5477 case MARSHAL_ACTION_MANAGED_CONV_IN:
5478 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5481 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5482 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5485 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5486 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5489 printf ("Unhandled case for MarshalAction: %d\n", action);
5497 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5498 MonoMarshalSpec *spec, int conv_arg,
5499 MonoType **conv_arg_type, MarshalAction action)
5502 if (action == MARSHAL_ACTION_CONV_IN)
5503 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5505 MonoMethodBuilder *mb = m->mb;
5508 case MARSHAL_ACTION_CONV_IN: {
5509 MonoType *intptr_type;
5511 intptr_type = &mono_defaults.int_class->byval_arg;
5512 conv_arg = mono_mb_add_local (mb, intptr_type);
5513 *conv_arg_type = intptr_type;
5516 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5517 mono_mb_emit_exception_marshal_directive (mb, msg);
5520 mono_mb_emit_ldarg_addr (mb, argnum);
5521 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5522 mono_mb_emit_byte (mb, CEE_ADD);
5523 mono_mb_emit_byte (mb, CEE_LDIND_I);
5524 mono_mb_emit_stloc (mb, conv_arg);
5528 case MARSHAL_ACTION_PUSH:
5529 mono_mb_emit_ldloc (mb, conv_arg);
5532 case MARSHAL_ACTION_CONV_OUT: {
5533 /* no resource release required */
5537 case MARSHAL_ACTION_CONV_RESULT: {
5538 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5539 mono_mb_emit_exception_marshal_directive (mb, msg);
5543 case MARSHAL_ACTION_MANAGED_CONV_IN:
5544 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5547 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5548 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5551 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5552 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5555 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5563 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5564 MonoMarshalSpec *spec,
5565 int conv_arg, MonoType **conv_arg_type,
5566 MarshalAction action)
5569 if (action == MARSHAL_ACTION_CONV_IN)
5570 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5572 MonoMethodBuilder *mb = m->mb;
5573 MonoClass *klass = mono_class_from_mono_type (t);
5577 case MARSHAL_ACTION_CONV_IN:
5578 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5579 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5581 m->orig_conv_args [argnum] = 0;
5583 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5584 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5585 mono_mb_emit_exception_marshal_directive (mb, msg);
5589 if (klass->delegate) {
5591 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5592 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5593 mono_mb_emit_exception_marshal_directive (mb, msg);
5595 mono_mb_emit_byte (mb, CEE_LDNULL);
5596 mono_mb_emit_stloc (mb, conv_arg);
5598 mono_mb_emit_ldarg (mb, argnum);
5599 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5600 mono_mb_emit_stloc (mb, conv_arg);
5602 } else if (klass == mono_defaults.stringbuilder_class) {
5603 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5604 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5608 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5609 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5610 mono_mb_emit_exception_marshal_directive (mb, msg);
5616 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5619 if (conv == MONO_MARSHAL_CONV_INVALID) {
5620 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5621 mono_mb_emit_exception_marshal_directive (mb, msg);
5625 mono_mb_emit_ldarg (mb, argnum);
5627 mono_mb_emit_byte (mb, CEE_LDIND_I);
5629 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5630 mono_mb_emit_stloc (mb, conv_arg);
5631 } else if (klass->blittable) {
5632 mono_mb_emit_byte (mb, CEE_LDNULL);
5633 mono_mb_emit_stloc (mb, conv_arg);
5635 mono_mb_emit_ldarg (mb, argnum);
5636 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5638 mono_mb_emit_ldarg (mb, argnum);
5639 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5640 mono_mb_emit_stloc (mb, conv_arg);
5642 mono_mb_patch_branch (mb, pos);
5645 mono_mb_emit_byte (mb, CEE_LDNULL);
5646 mono_mb_emit_stloc (mb, conv_arg);
5649 /* we dont need any conversions for out parameters */
5650 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5653 mono_mb_emit_ldarg (mb, argnum);
5654 mono_mb_emit_byte (mb, CEE_LDIND_I);
5657 mono_mb_emit_ldarg (mb, argnum);
5658 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5659 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5662 /* store the address of the source into local variable 0 */
5663 mono_mb_emit_stloc (mb, 0);
5664 mono_mb_emit_ldloc (mb, 0);
5665 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5667 /* allocate space for the native struct and store the address */
5668 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5669 mono_mb_emit_byte (mb, CEE_PREFIX1);
5670 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5671 mono_mb_emit_stloc (mb, conv_arg);
5674 /* Need to store the original buffer so we can free it later */
5675 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5676 mono_mb_emit_ldloc (mb, conv_arg);
5677 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5680 /* set the src_ptr */
5681 mono_mb_emit_ldloc (mb, 0);
5682 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5683 mono_mb_emit_stloc (mb, 0);
5686 mono_mb_emit_ldloc (mb, conv_arg);
5687 mono_mb_emit_stloc (mb, 1);
5689 /* emit valuetype conversion code */
5690 emit_struct_conv (mb, klass, FALSE);
5692 mono_mb_patch_branch (mb, pos);
5696 case MARSHAL_ACTION_CONV_OUT:
5697 if (klass == mono_defaults.stringbuilder_class) {
5699 MonoMarshalNative encoding;
5700 MonoMarshalConv conv;
5702 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5703 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5705 g_assert (encoding != -1);
5708 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5712 mono_mb_emit_ldarg (mb, argnum);
5713 mono_mb_emit_ldloc (mb, conv_arg);
5716 case MONO_NATIVE_LPWSTR:
5717 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5719 case MONO_NATIVE_LPSTR:
5720 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5723 g_assert_not_reached ();
5726 mono_mb_emit_byte (mb, CEE_STIND_REF);
5728 mono_mb_emit_ldarg (mb, argnum);
5729 mono_mb_emit_ldloc (mb, conv_arg);
5731 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5735 mono_mb_emit_ldloc (mb, conv_arg);
5736 mono_mb_emit_icall (mb, mono_marshal_free);
5741 if (klass->delegate) {
5743 mono_mb_emit_ldarg (mb, argnum);
5744 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5745 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5746 mono_mb_emit_ldloc (mb, conv_arg);
5747 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5748 mono_mb_emit_byte (mb, CEE_STIND_REF);
5753 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5754 /* allocate a new object */
5755 mono_mb_emit_ldarg (mb, argnum);
5756 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5757 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5758 mono_mb_emit_byte (mb, CEE_STIND_REF);
5761 /* dst = *argument */
5762 mono_mb_emit_ldarg (mb, argnum);
5765 mono_mb_emit_byte (mb, CEE_LDIND_I);
5767 mono_mb_emit_stloc (mb, 1);
5769 mono_mb_emit_ldloc (mb, 1);
5770 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5772 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5773 mono_mb_emit_ldloc (mb, 1);
5774 mono_mb_emit_icon (mb, sizeof (MonoObject));
5775 mono_mb_emit_byte (mb, CEE_ADD);
5776 mono_mb_emit_stloc (mb, 1);
5778 /* src = tmp_locals [i] */
5779 mono_mb_emit_ldloc (mb, conv_arg);
5780 mono_mb_emit_stloc (mb, 0);
5782 /* emit valuetype conversion code */
5783 emit_struct_conv (mb, klass, TRUE);
5785 /* Free the structure returned by the native code */
5786 emit_struct_free (mb, klass, conv_arg);
5788 if (m->orig_conv_args [argnum]) {
5790 * If the native function changed the pointer, then free
5791 * the original structure plus the new pointer.
5793 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5794 mono_mb_emit_ldloc (mb, conv_arg);
5795 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5797 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5798 g_assert (m->orig_conv_args [argnum]);
5800 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5803 mono_mb_emit_ldloc (mb, conv_arg);
5804 mono_mb_emit_icall (mb, mono_marshal_free);
5806 mono_mb_patch_branch (mb, pos2);
5810 /* Free the original structure passed to native code */
5811 emit_struct_free (mb, klass, conv_arg);
5813 mono_mb_patch_branch (mb, pos);
5816 case MARSHAL_ACTION_PUSH:
5818 mono_mb_emit_ldloc_addr (mb, conv_arg);
5820 mono_mb_emit_ldloc (mb, conv_arg);
5823 case MARSHAL_ACTION_CONV_RESULT:
5824 if (klass->delegate) {
5825 g_assert (!t->byref);
5826 mono_mb_emit_stloc (mb, 0);
5827 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5828 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5829 mono_mb_emit_ldloc (mb, 0);
5830 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5831 mono_mb_emit_stloc (mb, 3);
5834 mono_mb_emit_stloc (mb, 0);
5836 /* Make a copy since emit_conv modifies local 0 */
5837 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5838 mono_mb_emit_ldloc (mb, 0);
5839 mono_mb_emit_stloc (mb, loc);
5841 mono_mb_emit_byte (mb, CEE_LDNULL);
5842 mono_mb_emit_stloc (mb, 3);
5844 mono_mb_emit_ldloc (mb, 0);
5845 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5847 /* allocate result object */
5849 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5850 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5851 mono_mb_emit_stloc (mb, 3);
5855 mono_mb_emit_ldloc (mb, 3);
5856 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5857 mono_mb_emit_stloc (mb, 1);
5859 /* emit conversion code */
5860 emit_struct_conv (mb, klass, TRUE);
5862 emit_struct_free (mb, klass, loc);
5864 /* Free the pointer allocated by unmanaged code */
5865 mono_mb_emit_ldloc (mb, loc);
5866 mono_mb_emit_icall (mb, mono_marshal_free);
5867 mono_mb_patch_branch (mb, pos);
5871 case MARSHAL_ACTION_MANAGED_CONV_IN:
5872 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5874 if (klass->delegate) {
5875 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5876 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5877 mono_mb_emit_ldarg (mb, argnum);
5879 mono_mb_emit_byte (mb, CEE_LDIND_I);
5880 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5881 mono_mb_emit_stloc (mb, conv_arg);
5885 if (klass == mono_defaults.stringbuilder_class) {
5886 MonoMarshalNative encoding;
5888 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5891 g_assert (encoding == MONO_NATIVE_LPSTR);
5893 g_assert (!t->byref);
5894 g_assert (encoding != -1);
5896 mono_mb_emit_ldarg (mb, argnum);
5897 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5898 mono_mb_emit_stloc (mb, conv_arg);
5902 /* The class can not have an automatic layout */
5903 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5904 mono_mb_emit_auto_layout_exception (mb, klass);
5908 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5909 mono_mb_emit_byte (mb, CEE_LDNULL);
5910 mono_mb_emit_stloc (mb, conv_arg);
5915 mono_mb_emit_ldarg (mb, argnum);
5919 /* Check for NULL and raise an exception */
5920 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5922 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5924 mono_mb_patch_branch (mb, pos2);
5925 mono_mb_emit_ldarg (mb, argnum);
5926 mono_mb_emit_byte (mb, CEE_LDIND_I);
5929 mono_mb_emit_stloc (mb, 0);
5931 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5932 mono_mb_emit_stloc (mb, conv_arg);
5934 mono_mb_emit_ldloc (mb, 0);
5935 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5937 /* Create and set dst */
5938 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5939 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5940 mono_mb_emit_stloc (mb, conv_arg);
5941 mono_mb_emit_ldloc (mb, conv_arg);
5942 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5943 mono_mb_emit_stloc (mb, 1);
5945 /* emit valuetype conversion code */
5946 emit_struct_conv (mb, klass, TRUE);
5948 mono_mb_patch_branch (mb, pos);
5951 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5952 if (klass->delegate) {
5955 mono_mb_emit_ldarg (mb, argnum);
5956 mono_mb_emit_ldloc (mb, conv_arg);
5957 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5958 mono_mb_emit_byte (mb, stind_op);
5964 /* Check for null */
5965 mono_mb_emit_ldloc (mb, conv_arg);
5966 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5967 mono_mb_emit_ldarg (mb, argnum);
5968 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5969 mono_mb_emit_byte (mb, CEE_STIND_REF);
5970 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5972 mono_mb_patch_branch (mb, pos);
5975 mono_mb_emit_ldloc (mb, conv_arg);
5976 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5977 mono_mb_emit_stloc (mb, 0);
5979 /* Allocate and set dest */
5980 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5981 mono_mb_emit_byte (mb, CEE_CONV_I);
5982 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5983 mono_mb_emit_stloc (mb, 1);
5985 /* Update argument pointer */
5986 mono_mb_emit_ldarg (mb, argnum);
5987 mono_mb_emit_ldloc (mb, 1);
5988 mono_mb_emit_byte (mb, CEE_STIND_I);
5990 /* emit valuetype conversion code */
5991 emit_struct_conv (mb, klass, FALSE);
5993 mono_mb_patch_branch (mb, pos2);
5994 } else if (klass == mono_defaults.stringbuilder_class) {
5995 // FIXME: What to do here ?
5997 /* byval [Out] marshalling */
5999 /* FIXME: Handle null */
6002 mono_mb_emit_ldloc (mb, conv_arg);
6003 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6004 mono_mb_emit_stloc (mb, 0);
6007 mono_mb_emit_ldarg (mb, argnum);
6008 mono_mb_emit_stloc (mb, 1);
6010 /* emit valuetype conversion code */
6011 emit_struct_conv (mb, klass, FALSE);
6015 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6016 if (klass->delegate) {
6017 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6018 mono_mb_emit_stloc (mb, 3);
6022 /* The class can not have an automatic layout */
6023 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6024 mono_mb_emit_auto_layout_exception (mb, klass);
6028 mono_mb_emit_stloc (mb, 0);
6029 /* Check for null */
6030 mono_mb_emit_ldloc (mb, 0);
6031 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6032 mono_mb_emit_byte (mb, CEE_LDNULL);
6033 mono_mb_emit_stloc (mb, 3);
6034 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6036 mono_mb_patch_branch (mb, pos);
6039 mono_mb_emit_ldloc (mb, 0);
6040 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6041 mono_mb_emit_stloc (mb, 0);
6043 /* Allocate and set dest */
6044 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6045 mono_mb_emit_byte (mb, CEE_CONV_I);
6046 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6047 mono_mb_emit_byte (mb, CEE_DUP);
6048 mono_mb_emit_stloc (mb, 1);
6049 mono_mb_emit_stloc (mb, 3);
6051 emit_struct_conv (mb, klass, FALSE);
6053 mono_mb_patch_branch (mb, pos2);
6057 g_assert_not_reached ();
6068 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6069 MonoMarshalSpec *spec,
6070 int conv_arg, MonoType **conv_arg_type,
6071 MarshalAction action)
6073 MonoMethodBuilder *mb = m->mb;
6074 static MonoMethod *get_object_for_native_variant = NULL;
6075 static MonoMethod *get_native_variant_for_object = NULL;
6077 if (!get_object_for_native_variant)
6078 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6079 g_assert (get_object_for_native_variant);
6081 if (!get_native_variant_for_object)
6082 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6083 g_assert (get_native_variant_for_object);
6086 case MARSHAL_ACTION_CONV_IN: {
6087 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6090 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6092 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6094 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6097 mono_mb_emit_ldarg (mb, argnum);
6099 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6100 mono_mb_emit_ldloc_addr (mb, conv_arg);
6101 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6105 case MARSHAL_ACTION_CONV_OUT: {
6106 static MonoMethod *variant_clear = NULL;
6109 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6110 g_assert (variant_clear);
6113 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6114 mono_mb_emit_ldarg (mb, argnum);
6115 mono_mb_emit_ldloc_addr (mb, conv_arg);
6116 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6117 mono_mb_emit_byte (mb, CEE_STIND_REF);
6120 mono_mb_emit_ldloc_addr (mb, conv_arg);
6121 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6125 case MARSHAL_ACTION_PUSH:
6127 mono_mb_emit_ldloc_addr (mb, conv_arg);
6129 mono_mb_emit_ldloc (mb, conv_arg);
6132 case MARSHAL_ACTION_CONV_RESULT: {
6133 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6134 mono_mb_emit_exception_marshal_directive (mb, msg);
6138 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6139 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6142 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6144 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6146 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6150 mono_mb_emit_ldarg (mb, argnum);
6152 mono_mb_emit_ldarg_addr (mb, argnum);
6153 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6154 mono_mb_emit_stloc (mb, conv_arg);
6158 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6159 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6160 mono_mb_emit_ldloc (mb, conv_arg);
6161 mono_mb_emit_ldarg (mb, argnum);
6162 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6167 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6168 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6169 mono_mb_emit_exception_marshal_directive (mb, msg);
6174 g_assert_not_reached ();
6180 #endif /* DISABLE_COM */
6181 #endif /* DISABLE_JIT */
6184 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6186 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6187 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6189 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6191 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6203 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6204 MonoMarshalSpec *spec,
6205 int conv_arg, MonoType **conv_arg_type,
6206 MarshalAction action)
6210 case MARSHAL_ACTION_CONV_IN:
6211 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6213 case MARSHAL_ACTION_MANAGED_CONV_IN:
6214 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6218 MonoMethodBuilder *mb = m->mb;
6219 MonoClass *klass = mono_class_from_mono_type (t);
6220 gboolean need_convert, need_free;
6221 MonoMarshalNative encoding;
6223 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6226 case MARSHAL_ACTION_CONV_IN:
6227 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6228 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6230 if (klass->element_class->blittable) {
6231 mono_mb_emit_ldarg (mb, argnum);
6233 mono_mb_emit_byte (mb, CEE_LDIND_I);
6234 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6235 mono_mb_emit_stloc (mb, conv_arg);
6238 guint32 label1, label2, label3;
6239 int index_var, src_var, dest_ptr, esize;
6240 MonoMarshalConv conv;
6241 gboolean is_string = FALSE;
6243 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6245 eklass = klass->element_class;
6247 if (eklass == mono_defaults.string_class) {
6249 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6251 else if (eklass == mono_defaults.stringbuilder_class) {
6253 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6256 conv = MONO_MARSHAL_CONV_INVALID;
6258 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6259 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6260 mono_mb_emit_exception_marshal_directive (mb, msg);
6264 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6265 mono_mb_emit_ldarg (mb, argnum);
6267 mono_mb_emit_byte (mb, CEE_LDIND_I);
6268 mono_mb_emit_stloc (mb, src_var);
6271 mono_mb_emit_ldloc (mb, src_var);
6272 mono_mb_emit_stloc (mb, conv_arg);
6273 mono_mb_emit_ldloc (mb, src_var);
6274 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6277 esize = sizeof (gpointer);
6278 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6279 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6281 esize = mono_class_native_size (eklass, NULL);
6283 /* allocate space for the native struct and store the address */
6284 mono_mb_emit_icon (mb, esize);
6285 mono_mb_emit_ldloc (mb, src_var);
6286 mono_mb_emit_byte (mb, CEE_LDLEN);
6288 if (eklass == mono_defaults.string_class) {
6289 /* Make the array bigger for the terminating null */
6290 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6291 mono_mb_emit_byte (mb, CEE_ADD);
6293 mono_mb_emit_byte (mb, CEE_MUL);
6294 mono_mb_emit_byte (mb, CEE_PREFIX1);
6295 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6296 mono_mb_emit_stloc (mb, conv_arg);
6298 mono_mb_emit_ldloc (mb, conv_arg);
6299 mono_mb_emit_stloc (mb, dest_ptr);
6301 /* Emit marshalling loop */
6302 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6303 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6304 mono_mb_emit_stloc (mb, index_var);
6305 label2 = mono_mb_get_label (mb);
6306 mono_mb_emit_ldloc (mb, index_var);
6307 mono_mb_emit_ldloc (mb, src_var);
6308 mono_mb_emit_byte (mb, CEE_LDLEN);
6309 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6311 /* Emit marshalling code */
6315 mono_mb_emit_ldloc (mb, dest_ptr);
6316 mono_mb_emit_ldloc (mb, src_var);
6317 mono_mb_emit_ldloc (mb, index_var);
6318 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6319 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6320 mono_mb_emit_byte (mb, stind_op);
6322 /* set the src_ptr */
6323 mono_mb_emit_ldloc (mb, src_var);
6324 mono_mb_emit_ldloc (mb, index_var);
6325 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6326 mono_mb_emit_stloc (mb, 0);
6329 mono_mb_emit_ldloc (mb, dest_ptr);
6330 mono_mb_emit_stloc (mb, 1);
6332 /* emit valuetype conversion code */
6333 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6336 mono_mb_emit_add_to_local (mb, index_var, 1);
6337 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6339 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6341 mono_mb_patch_branch (mb, label3);
6343 if (eklass == mono_defaults.string_class) {
6344 /* Null terminate */
6345 mono_mb_emit_ldloc (mb, dest_ptr);
6346 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6347 mono_mb_emit_byte (mb, CEE_STIND_REF);
6350 mono_mb_patch_branch (mb, label1);
6355 case MARSHAL_ACTION_CONV_OUT:
6356 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6357 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);
6358 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6361 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6362 int param_num = spec->data.array_data.param_num;
6363 MonoType *param_type;
6365 param_type = m->sig->params [param_num];
6367 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6368 char *msg = g_strdup ("Not implemented.");
6369 mono_mb_emit_exception_marshal_directive (mb, msg);
6374 mono_mb_emit_ldarg (mb, argnum);
6376 /* Create the managed array */
6377 mono_mb_emit_ldarg (mb, param_num);
6378 if (m->sig->params [param_num]->byref)
6379 // FIXME: Support other types
6380 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6381 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6382 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6383 /* Store into argument */
6384 mono_mb_emit_byte (mb, CEE_STIND_REF);
6388 if (need_convert || need_free) {
6389 /* FIXME: Optimize blittable case */
6391 guint32 label1, label2, label3;
6392 int index_var, src_ptr, loc, esize;
6394 eklass = klass->element_class;
6395 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6396 esize = sizeof (gpointer);
6397 else if (eklass == mono_defaults.char_class)
6398 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6400 esize = mono_class_native_size (eklass, NULL);
6401 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6402 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6405 mono_mb_emit_ldarg (mb, argnum);
6407 mono_mb_emit_byte (mb, CEE_LDIND_I);
6408 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6410 mono_mb_emit_ldloc (mb, conv_arg);
6411 mono_mb_emit_stloc (mb, src_ptr);
6413 /* Emit marshalling loop */
6414 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6415 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6416 mono_mb_emit_stloc (mb, index_var);
6417 label2 = mono_mb_get_label (mb);
6418 mono_mb_emit_ldloc (mb, index_var);
6419 mono_mb_emit_ldarg (mb, argnum);
6421 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6422 mono_mb_emit_byte (mb, CEE_LDLEN);
6423 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6425 /* Emit marshalling code */
6427 if (eklass == mono_defaults.stringbuilder_class) {
6428 gboolean need_free2;
6429 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6431 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6434 mono_mb_emit_ldarg (mb, argnum);
6436 mono_mb_emit_byte (mb, CEE_LDIND_I);
6437 mono_mb_emit_ldloc (mb, index_var);
6438 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6441 mono_mb_emit_ldloc (mb, src_ptr);
6442 mono_mb_emit_byte (mb, CEE_LDIND_I);
6444 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6448 mono_mb_emit_ldloc (mb, src_ptr);
6449 mono_mb_emit_byte (mb, CEE_LDIND_I);
6451 mono_mb_emit_icall (mb, mono_marshal_free);
6454 else if (eklass == mono_defaults.string_class) {
6457 mono_mb_emit_ldloc (mb, src_ptr);
6458 mono_mb_emit_byte (mb, CEE_LDIND_I);
6460 mono_mb_emit_icall (mb, mono_marshal_free);
6465 /* set the src_ptr */
6466 mono_mb_emit_ldloc (mb, src_ptr);
6467 mono_mb_emit_stloc (mb, 0);
6470 mono_mb_emit_ldarg (mb, argnum);
6472 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6473 mono_mb_emit_ldloc (mb, index_var);
6474 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6475 mono_mb_emit_stloc (mb, 1);
6477 /* emit valuetype conversion code */
6478 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6482 mono_mb_emit_ldloc (mb, src_ptr);
6483 mono_mb_emit_stloc (mb, loc);
6484 mono_mb_emit_ldloc (mb, loc);
6486 emit_struct_free (mb, eklass, loc);
6490 mono_mb_emit_add_to_local (mb, index_var, 1);
6491 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6493 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6495 mono_mb_patch_branch (mb, label1);
6496 mono_mb_patch_branch (mb, label3);
6499 if (klass->element_class->blittable) {
6500 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6502 mono_mb_emit_ldarg (mb, argnum);
6504 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6505 mono_mb_emit_ldloc (mb, conv_arg);
6506 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6511 case MARSHAL_ACTION_PUSH:
6513 mono_mb_emit_ldloc_addr (mb, conv_arg);
6515 mono_mb_emit_ldloc (mb, conv_arg);
6518 case MARSHAL_ACTION_CONV_RESULT:
6519 /* fixme: we need conversions here */
6520 mono_mb_emit_stloc (mb, 3);
6523 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6525 guint32 label1, label2, label3;
6526 int index_var, src_ptr, esize, param_num, num_elem;
6527 MonoMarshalConv conv;
6528 gboolean is_string = FALSE;
6530 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6531 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6534 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6535 mono_mb_emit_exception_marshal_directive (mb, msg);
6539 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6540 mono_mb_emit_exception_marshal_directive (mb, msg);
6543 if (spec->native != MONO_NATIVE_LPARRAY) {
6544 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6545 mono_mb_emit_exception_marshal_directive (mb, msg);
6549 /* FIXME: t is from the method which is wrapped, not the delegate type */
6550 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6552 param_num = spec->data.array_data.param_num;
6553 num_elem = spec->data.array_data.num_elem;
6554 if (spec->data.array_data.elem_mult == 0)
6555 /* param_num is not specified */
6558 if (param_num == -1) {
6559 if (num_elem <= 0) {
6560 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6561 mono_mb_emit_exception_marshal_directive (mb, msg);
6566 /* FIXME: Optimize blittable case */
6568 eklass = klass->element_class;
6569 if (eklass == mono_defaults.string_class) {
6571 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6573 else if (eklass == mono_defaults.stringbuilder_class) {
6575 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6578 conv = MONO_MARSHAL_CONV_INVALID;
6580 mono_marshal_load_type_info (eklass);
6583 esize = sizeof (gpointer);
6585 esize = mono_class_native_size (eklass, NULL);
6586 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6588 mono_mb_emit_byte (mb, CEE_LDNULL);
6589 mono_mb_emit_stloc (mb, conv_arg);
6591 /* Check param index */
6592 if (param_num != -1) {
6593 if (param_num >= m->sig->param_count) {
6594 char *msg = g_strdup ("Array size control parameter index is out of range.");
6595 mono_mb_emit_exception_marshal_directive (mb, msg);
6598 switch (m->sig->params [param_num]->type) {
6611 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6612 mono_mb_emit_exception_marshal_directive (mb, msg);
6619 mono_mb_emit_ldarg (mb, argnum);
6620 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6622 mono_mb_emit_ldarg (mb, argnum);
6623 mono_mb_emit_stloc (mb, src_ptr);
6625 /* Create managed array */
6627 * The LPArray marshalling spec says that sometimes param_num starts
6628 * from 1, sometimes it starts from 0. But MS seems to allways start
6632 if (param_num == -1) {
6633 mono_mb_emit_icon (mb, num_elem);
6635 mono_mb_emit_ldarg (mb, param_num);
6637 mono_mb_emit_icon (mb, num_elem);
6638 mono_mb_emit_byte (mb, CEE_ADD);
6640 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6643 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6644 mono_mb_emit_stloc (mb, conv_arg);
6646 if (eklass->blittable) {
6647 mono_mb_emit_ldloc (mb, conv_arg);
6648 mono_mb_emit_byte (mb, CEE_CONV_I);
6649 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6650 mono_mb_emit_byte (mb, CEE_ADD);
6651 mono_mb_emit_ldarg (mb, argnum);
6652 mono_mb_emit_ldloc (mb, conv_arg);
6653 mono_mb_emit_byte (mb, CEE_LDLEN);
6654 mono_mb_emit_icon (mb, esize);
6655 mono_mb_emit_byte (mb, CEE_MUL);
6656 mono_mb_emit_byte (mb, CEE_PREFIX1);
6657 mono_mb_emit_byte (mb, CEE_CPBLK);
6661 /* Emit marshalling loop */
6662 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6663 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6664 mono_mb_emit_stloc (mb, index_var);
6665 label2 = mono_mb_get_label (mb);
6666 mono_mb_emit_ldloc (mb, index_var);
6667 mono_mb_emit_ldloc (mb, conv_arg);
6668 mono_mb_emit_byte (mb, CEE_LDLEN);
6669 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6671 /* Emit marshalling code */
6673 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6675 mono_mb_emit_ldloc (mb, conv_arg);
6676 mono_mb_emit_ldloc (mb, index_var);
6678 mono_mb_emit_ldloc (mb, src_ptr);
6679 mono_mb_emit_byte (mb, CEE_LDIND_I);
6681 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6682 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6685 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6686 mono_mb_emit_exception_marshal_directive (mb, msg);
6690 mono_mb_emit_add_to_local (mb, index_var, 1);
6691 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6693 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6695 mono_mb_patch_branch (mb, label1);
6696 mono_mb_patch_branch (mb, label3);
6700 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6702 guint32 label1, label2, label3;
6703 int index_var, dest_ptr, esize, param_num, num_elem;
6704 MonoMarshalConv conv;
6705 gboolean is_string = FALSE;
6708 /* Already handled in CONV_IN */
6711 /* These are already checked in CONV_IN */
6712 g_assert (!t->byref);
6713 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6714 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6716 param_num = spec->data.array_data.param_num;
6717 num_elem = spec->data.array_data.num_elem;
6719 if (spec->data.array_data.elem_mult == 0)
6720 /* param_num is not specified */
6723 if (param_num == -1) {
6724 if (num_elem <= 0) {
6725 g_assert_not_reached ();
6729 /* FIXME: Optimize blittable case */
6731 eklass = klass->element_class;
6732 if (eklass == mono_defaults.string_class) {
6734 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6736 else if (eklass == mono_defaults.stringbuilder_class) {
6738 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6741 conv = MONO_MARSHAL_CONV_INVALID;
6743 mono_marshal_load_type_info (eklass);
6746 esize = sizeof (gpointer);
6748 esize = mono_class_native_size (eklass, NULL);
6750 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6753 mono_mb_emit_ldloc (mb, conv_arg);
6754 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6756 mono_mb_emit_ldarg (mb, argnum);
6757 mono_mb_emit_stloc (mb, dest_ptr);
6759 if (eklass->blittable) {
6761 mono_mb_emit_ldarg (mb, argnum);
6763 mono_mb_emit_ldloc (mb, conv_arg);
6764 mono_mb_emit_byte (mb, CEE_CONV_I);
6765 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6766 mono_mb_emit_byte (mb, CEE_ADD);
6768 mono_mb_emit_ldloc (mb, conv_arg);
6769 mono_mb_emit_byte (mb, CEE_LDLEN);
6770 mono_mb_emit_icon (mb, esize);
6771 mono_mb_emit_byte (mb, CEE_MUL);
6772 mono_mb_emit_byte (mb, CEE_PREFIX1);
6773 mono_mb_emit_byte (mb, CEE_CPBLK);
6777 /* Emit marshalling loop */
6778 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6779 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6780 mono_mb_emit_stloc (mb, index_var);
6781 label2 = mono_mb_get_label (mb);
6782 mono_mb_emit_ldloc (mb, index_var);
6783 mono_mb_emit_ldloc (mb, conv_arg);
6784 mono_mb_emit_byte (mb, CEE_LDLEN);
6785 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6787 /* Emit marshalling code */
6790 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6793 mono_mb_emit_ldloc (mb, dest_ptr);
6796 mono_mb_emit_ldloc (mb, conv_arg);
6797 mono_mb_emit_ldloc (mb, index_var);
6799 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6801 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6802 mono_mb_emit_byte (mb, stind_op);
6805 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6806 mono_mb_emit_exception_marshal_directive (mb, msg);
6810 mono_mb_emit_add_to_local (mb, index_var, 1);
6811 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6813 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6815 mono_mb_patch_branch (mb, label1);
6816 mono_mb_patch_branch (mb, label3);
6820 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6822 guint32 label1, label2, label3;
6823 int index_var, src, dest, esize;
6824 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6825 gboolean is_string = FALSE;
6827 g_assert (!t->byref);
6829 eklass = klass->element_class;
6831 mono_marshal_load_type_info (eklass);
6833 if (eklass == mono_defaults.string_class) {
6835 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6838 g_assert_not_reached ();
6842 esize = sizeof (gpointer);
6843 else if (eklass == mono_defaults.char_class)
6844 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6846 esize = mono_class_native_size (eklass, NULL);
6848 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6849 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6851 mono_mb_emit_stloc (mb, src);
6852 mono_mb_emit_ldloc (mb, src);
6853 mono_mb_emit_stloc (mb, 3);
6855 /* Check for null */
6856 mono_mb_emit_ldloc (mb, src);
6857 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6859 /* Allocate native array */
6860 mono_mb_emit_icon (mb, esize);
6861 mono_mb_emit_ldloc (mb, src);
6862 mono_mb_emit_byte (mb, CEE_LDLEN);
6864 if (eklass == mono_defaults.string_class) {
6865 /* Make the array bigger for the terminating null */
6866 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6867 mono_mb_emit_byte (mb, CEE_ADD);
6869 mono_mb_emit_byte (mb, CEE_MUL);
6870 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6871 mono_mb_emit_stloc (mb, dest);
6872 mono_mb_emit_ldloc (mb, dest);
6873 mono_mb_emit_stloc (mb, 3);
6875 /* Emit marshalling loop */
6876 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6877 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6878 mono_mb_emit_stloc (mb, index_var);
6879 label2 = mono_mb_get_label (mb);
6880 mono_mb_emit_ldloc (mb, index_var);
6881 mono_mb_emit_ldloc (mb, src);
6882 mono_mb_emit_byte (mb, CEE_LDLEN);
6883 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6885 /* Emit marshalling code */
6888 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6891 mono_mb_emit_ldloc (mb, dest);
6894 mono_mb_emit_ldloc (mb, src);
6895 mono_mb_emit_ldloc (mb, index_var);
6897 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6899 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6900 mono_mb_emit_byte (mb, stind_op);
6903 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6904 mono_mb_emit_exception_marshal_directive (mb, msg);
6908 mono_mb_emit_add_to_local (mb, index_var, 1);
6909 mono_mb_emit_add_to_local (mb, dest, esize);
6911 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6913 mono_mb_patch_branch (mb, label3);
6914 mono_mb_patch_branch (mb, label1);
6918 g_assert_not_reached ();
6925 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6928 return &mono_defaults.int32_class->byval_arg;
6930 switch (spec->native) {
6931 case MONO_NATIVE_I1:
6932 case MONO_NATIVE_U1:
6933 return &mono_defaults.byte_class->byval_arg;
6934 case MONO_NATIVE_VARIANTBOOL:
6935 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6936 return &mono_defaults.int16_class->byval_arg;
6937 case MONO_NATIVE_BOOLEAN:
6938 return &mono_defaults.int32_class->byval_arg;
6940 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6941 return &mono_defaults.int32_class->byval_arg;
6947 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6949 MonoClass* conv_arg_class = mono_defaults.int32_class;
6951 switch (spec->native) {
6952 case MONO_NATIVE_I1:
6953 case MONO_NATIVE_U1:
6954 conv_arg_class = mono_defaults.byte_class;
6955 if (ldop) *ldop = CEE_LDIND_I1;
6957 case MONO_NATIVE_VARIANTBOOL:
6958 conv_arg_class = mono_defaults.int16_class;
6959 if (ldop) *ldop = CEE_LDIND_I2;
6961 case MONO_NATIVE_BOOLEAN:
6964 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6967 return conv_arg_class;
6971 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6972 MonoMarshalSpec *spec,
6973 int conv_arg, MonoType **conv_arg_type,
6974 MarshalAction action)
6978 case MARSHAL_ACTION_CONV_IN:
6980 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6982 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6985 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6986 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6988 *conv_arg_type = &conv_arg_class->this_arg;
6990 *conv_arg_type = &conv_arg_class->byval_arg;
6996 MonoMethodBuilder *mb = m->mb;
6999 case MARSHAL_ACTION_CONV_IN: {
7000 MonoType *local_type;
7002 guint8 ldc_op = CEE_LDC_I4_1;
7004 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7006 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7008 *conv_arg_type = local_type;
7009 conv_arg = mono_mb_add_local (mb, local_type);
7011 mono_mb_emit_ldarg (mb, argnum);
7013 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7014 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7015 mono_mb_emit_byte (mb, ldc_op);
7016 mono_mb_emit_stloc (mb, conv_arg);
7017 mono_mb_patch_branch (mb, label_false);
7022 case MARSHAL_ACTION_CONV_OUT:
7024 int label_false, label_end;
7028 mono_mb_emit_ldarg (mb, argnum);
7029 mono_mb_emit_ldloc (mb, conv_arg);
7031 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7032 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7034 label_end = mono_mb_emit_branch (mb, CEE_BR);
7035 mono_mb_patch_branch (mb, label_false);
7036 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7037 mono_mb_patch_branch (mb, label_end);
7039 mono_mb_emit_byte (mb, CEE_STIND_I1);
7043 case MARSHAL_ACTION_PUSH:
7045 mono_mb_emit_ldloc_addr (mb, conv_arg);
7047 mono_mb_emit_ldloc (mb, conv_arg);
7049 mono_mb_emit_ldarg (mb, argnum);
7052 case MARSHAL_ACTION_CONV_RESULT:
7053 /* maybe we need to make sure that it fits within 8 bits */
7054 mono_mb_emit_stloc (mb, 3);
7057 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7058 MonoClass* conv_arg_class = mono_defaults.int32_class;
7059 guint8 ldop = CEE_LDIND_I4;
7060 int label_null, label_false;
7062 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7063 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7066 *conv_arg_type = &conv_arg_class->this_arg;
7068 *conv_arg_type = &conv_arg_class->byval_arg;
7071 mono_mb_emit_ldarg (mb, argnum);
7075 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7076 mono_mb_emit_ldarg (mb, argnum);
7077 mono_mb_emit_byte (mb, ldop);
7081 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7082 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7083 mono_mb_emit_stloc (mb, conv_arg);
7084 mono_mb_patch_branch (mb, label_false);
7087 mono_mb_patch_branch (mb, label_null);
7091 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7092 guint8 stop = CEE_STIND_I4;
7093 guint8 ldc_op = CEE_LDC_I4_1;
7094 int label_null,label_false, label_end;;
7099 switch (spec->native) {
7100 case MONO_NATIVE_I1:
7101 case MONO_NATIVE_U1:
7102 stop = CEE_STIND_I1;
7104 case MONO_NATIVE_VARIANTBOOL:
7105 stop = CEE_STIND_I2;
7106 ldc_op = CEE_LDC_I4_M1;
7114 mono_mb_emit_ldarg (mb, argnum);
7115 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7117 mono_mb_emit_ldarg (mb, argnum);
7118 mono_mb_emit_ldloc (mb, conv_arg);
7120 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7121 mono_mb_emit_byte (mb, ldc_op);
7122 label_end = mono_mb_emit_branch (mb, CEE_BR);
7124 mono_mb_patch_branch (mb, label_false);
7125 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7126 mono_mb_patch_branch (mb, label_end);
7128 mono_mb_emit_byte (mb, stop);
7129 mono_mb_patch_branch (mb, label_null);
7134 g_assert_not_reached ();
7141 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7142 MonoMarshalSpec *spec, int conv_arg,
7143 MonoType **conv_arg_type, MarshalAction action)
7146 MonoMethodBuilder *mb = m->mb;
7149 case MARSHAL_ACTION_CONV_IN:
7150 /* MS seems to allow this in some cases, ie. bxc #158 */
7152 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7153 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7154 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7159 case MARSHAL_ACTION_PUSH:
7160 mono_mb_emit_ldarg (mb, argnum);
7163 case MARSHAL_ACTION_CONV_RESULT:
7164 /* no conversions necessary */
7165 mono_mb_emit_stloc (mb, 3);
7176 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7177 MonoMarshalSpec *spec, int conv_arg,
7178 MonoType **conv_arg_type, MarshalAction action)
7181 MonoMethodBuilder *mb = m->mb;
7184 case MARSHAL_ACTION_PUSH:
7185 /* fixme: dont know how to marshal that. We cant simply
7186 * convert it to a one byte UTF8 character, because an
7187 * unicode character may need more that one byte in UTF8 */
7188 mono_mb_emit_ldarg (mb, argnum);
7191 case MARSHAL_ACTION_CONV_RESULT:
7192 /* fixme: we need conversions here */
7193 mono_mb_emit_stloc (mb, 3);
7204 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7205 MonoMarshalSpec *spec, int conv_arg,
7206 MonoType **conv_arg_type, MarshalAction action)
7209 MonoMethodBuilder *mb = m->mb;
7212 case MARSHAL_ACTION_PUSH:
7213 mono_mb_emit_ldarg (mb, argnum);
7216 case MARSHAL_ACTION_CONV_RESULT:
7217 /* no conversions necessary */
7218 mono_mb_emit_stloc (mb, 3);
7229 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7230 MonoMarshalSpec *spec, int conv_arg,
7231 MonoType **conv_arg_type, MarshalAction action)
7233 /* Ensure that we have marshalling info for this param */
7234 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7236 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7237 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7239 if (spec && spec->native == MONO_NATIVE_ASANY)
7240 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7243 case MONO_TYPE_VALUETYPE:
7244 if (t->data.klass == mono_defaults.handleref_class)
7245 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7247 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7248 case MONO_TYPE_STRING:
7249 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7250 case MONO_TYPE_CLASS:
7251 case MONO_TYPE_OBJECT:
7252 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7253 if (spec && spec->native == MONO_NATIVE_STRUCT)
7254 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7257 #if !defined(DISABLE_COM)
7258 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7259 spec->native == MONO_NATIVE_IDISPATCH ||
7260 spec->native == MONO_NATIVE_INTERFACE))
7261 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7262 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7263 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7264 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7265 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7268 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7269 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7270 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7272 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7273 case MONO_TYPE_ARRAY:
7274 case MONO_TYPE_SZARRAY:
7275 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7276 case MONO_TYPE_BOOLEAN:
7277 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7279 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7280 case MONO_TYPE_CHAR:
7281 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7294 case MONO_TYPE_FNPTR:
7295 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7296 case MONO_TYPE_GENERICINST:
7297 if (mono_type_generic_inst_is_valuetype (t))
7298 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7300 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7308 * mono_marshal_emit_native_wrapper:
7309 * @image: the image to use for looking up custom marshallers
7310 * @sig: The signature of the native function
7311 * @piinfo: Marshalling information
7312 * @mspecs: Marshalling information
7313 * @aot: whenever the created method will be compiled by the AOT compiler
7314 * @method: if non-NULL, the pinvoke method to call
7315 * @check_exceptions: Whenever to check for pending exceptions after the native call
7316 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7318 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7321 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)
7323 EmitMarshalContext m;
7324 MonoMethodSignature *csig;
7326 int i, argnum, *tmp_locals;
7327 int type, param_shift = 0;
7328 int coop_gc_stack_dummy, coop_gc_var;
7330 memset (&m, 0, sizeof (m));
7335 /* we copy the signature, so that we can set pinvoke to 0 */
7337 /* The function address is passed as the first argument */
7338 g_assert (!sig->hasthis);
7341 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7349 /* we allocate local for use with emit_struct_conv() */
7350 /* allocate local 0 (pointer) src_ptr */
7351 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7352 /* allocate local 1 (pointer) dst_ptr */
7353 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7354 /* allocate local 2 (boolean) delete_old */
7355 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7357 /* delete_old = FALSE */
7358 mono_mb_emit_icon (mb, 0);
7359 mono_mb_emit_stloc (mb, 2);
7361 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7362 /* allocate local 3 to store the return value */
7363 mono_mb_add_local (mb, sig->ret);
7366 if (mono_threads_is_coop_enabled ()) {
7367 /* local 4, dummy local used to get a stack address for suspend funcs */
7368 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7369 /* local 5, the local to be used when calling the suspend funcs */
7370 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7374 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7376 * ret = method (...);
7378 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7385 if (MONO_TYPE_ISSTRUCT (sig->ret))
7386 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7388 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7389 /* Return type custom marshaling */
7391 * Since we can't determine the return type of the unmanaged function,
7392 * we assume it returns a pointer, and pass that pointer to
7393 * MarshalNativeToManaged.
7395 csig->ret = &mono_defaults.int_class->byval_arg;
7398 /* we first do all conversions */
7399 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7400 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7402 for (i = 0; i < sig->param_count; i ++) {
7403 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7406 // In coop mode need to register blocking state during native call
7407 if (mono_threads_is_coop_enabled ()) {
7408 // Perform an extra, early lookup of the function address, so any exceptions
7409 // potentially resulting from the lookup occur before entering blocking mode.
7410 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7411 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7412 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7413 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7416 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7417 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7418 mono_mb_emit_stloc (mb, coop_gc_var);
7421 /* push all arguments */
7424 mono_mb_emit_byte (mb, CEE_LDARG_0);
7426 for (i = 0; i < sig->param_count; i++) {
7427 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7430 /* call the native method */
7432 mono_mb_emit_byte (mb, CEE_LDARG_0);
7433 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7434 mono_mb_emit_byte (mb, CEE_LDIND_I);
7435 mono_mb_emit_calli (mb, csig);
7436 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7438 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7440 g_assert_not_reached ();
7444 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7445 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7446 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7447 mono_mb_emit_calli (mb, csig);
7449 mono_mb_emit_native_call (mb, csig, func);
7453 /* Set LastError if needed */
7454 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7456 static MonoMethodSignature *get_last_error_sig = NULL;
7457 if (!get_last_error_sig) {
7458 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7459 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7460 get_last_error_sig->pinvoke = 1;
7464 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7465 * clobber its value.
7467 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7468 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7470 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7474 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7475 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7476 mono_class_init (klass);
7477 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7478 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7479 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7480 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7481 mono_mb_emit_stloc (mb, m.vtaddr_var);
7485 /* Unblock before converting the result, since that can involve calls into the runtime */
7486 if (mono_threads_is_coop_enabled ()) {
7487 mono_mb_emit_ldloc (mb, coop_gc_var);
7488 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7489 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7492 /* convert the result */
7493 if (!sig->ret->byref) {
7494 MonoMarshalSpec *spec = mspecs [0];
7495 type = sig->ret->type;
7497 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7498 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7502 case MONO_TYPE_VOID:
7504 case MONO_TYPE_VALUETYPE:
7505 klass = sig->ret->data.klass;
7506 if (klass->enumtype) {
7507 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7510 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7524 case MONO_TYPE_FNPTR:
7525 case MONO_TYPE_STRING:
7526 case MONO_TYPE_CLASS:
7527 case MONO_TYPE_OBJECT:
7528 case MONO_TYPE_BOOLEAN:
7529 case MONO_TYPE_ARRAY:
7530 case MONO_TYPE_SZARRAY:
7531 case MONO_TYPE_CHAR:
7533 case MONO_TYPE_GENERICINST:
7534 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7536 case MONO_TYPE_TYPEDBYREF:
7538 g_warning ("return type 0x%02x unknown", sig->ret->type);
7539 g_assert_not_reached ();
7543 mono_mb_emit_stloc (mb, 3);
7547 * Need to call this after converting the result since MONO_VTADDR needs
7548 * to be adjacent to the call instruction.
7550 if (check_exceptions)
7551 emit_thread_interrupt_checkpoint (mb);
7553 /* we need to convert byref arguments back and free string arrays */
7554 for (i = 0; i < sig->param_count; i++) {
7555 MonoType *t = sig->params [i];
7556 MonoMarshalSpec *spec = mspecs [i + 1];
7558 argnum = i + param_shift;
7560 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7561 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7566 case MONO_TYPE_STRING:
7567 case MONO_TYPE_VALUETYPE:
7568 case MONO_TYPE_CLASS:
7569 case MONO_TYPE_OBJECT:
7570 case MONO_TYPE_SZARRAY:
7571 case MONO_TYPE_BOOLEAN:
7572 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7579 if (!MONO_TYPE_IS_VOID(sig->ret))
7580 mono_mb_emit_ldloc (mb, 3);
7582 mono_mb_emit_byte (mb, CEE_RET);
7584 #endif /* DISABLE_JIT */
7587 * mono_marshal_get_native_wrapper:
7588 * @method: The MonoMethod to wrap.
7589 * @check_exceptions: Whenever to check for pending exceptions
7591 * generates IL code for the pinvoke wrapper (the generated method
7592 * calls the unmanaged code in piinfo->addr)
7593 * The wrapper info for the wrapper is a WrapperInfo structure.
7596 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7598 MonoMethodSignature *sig, *csig;
7599 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7600 MonoMethodBuilder *mb;
7601 MonoMarshalSpec **mspecs;
7604 gboolean pinvoke = FALSE;
7607 const char *exc_class = "MissingMethodException";
7608 const char *exc_arg = NULL;
7611 g_assert (method != NULL);
7612 g_assert (mono_method_signature (method)->pinvoke);
7614 GHashTable **cache_ptr;
7617 if (check_exceptions)
7618 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7620 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7622 if (check_exceptions)
7623 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7625 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7628 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7630 if ((res = mono_marshal_find_in_cache (cache, method)))
7633 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7634 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7638 return mono_cominterop_get_native_wrapper (method);
7640 g_assert_not_reached ();
7644 sig = mono_method_signature (method);
7646 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7647 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7650 if (!piinfo->addr) {
7652 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7653 exc_arg = "Method contains unsupported native code";
7655 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7657 piinfo->addr = mono_lookup_internal_call (method);
7661 /* hack - redirect certain string constructors to CreateString */
7662 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7663 g_assert (!pinvoke);
7664 g_assert (method->string_ctor);
7665 g_assert (sig->hasthis);
7667 /* CreateString returns a value */
7668 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7669 csig->ret = &mono_defaults.string_class->byval_arg;
7673 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7674 if (!strcmp ("CreateString", res->name) &&
7675 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7678 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7679 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7681 /* create a wrapper to preserve .ctor in stack trace */
7682 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7685 mono_mb_emit_byte (mb, CEE_LDARG_0);
7686 for (i = 1; i <= csig->param_count; i++)
7687 mono_mb_emit_ldarg (mb, i);
7688 mono_mb_emit_managed_call (mb, res, NULL);
7689 mono_mb_emit_byte (mb, CEE_RET);
7692 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7693 info->d.string_ctor.method = method;
7695 /* use native_wrapper_cache because internal calls are looked up there */
7696 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7697 csig->param_count + 1, info, NULL);
7704 /* exception will be thrown */
7705 piinfo->addr = NULL;
7706 g_warning ("cannot find CreateString for .ctor");
7709 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7711 mb->method->save_lmf = 1;
7714 * In AOT mode and embedding scenarios, it is possible that the icall is not
7715 * registered in the runtime doing the AOT compilation.
7717 if (!piinfo->addr && !aot) {
7719 mono_mb_emit_exception (mb, exc_class, exc_arg);
7721 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7722 info->d.managed_to_native.method = method;
7724 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7726 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7727 csig->param_count + 16, info, NULL);
7733 /* internal calls: we simply push all arguments and call the method (no conversions) */
7734 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7736 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7738 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7740 /* hack - string constructors returns a value */
7741 if (method->string_ctor)
7742 csig->ret = &mono_defaults.string_class->byval_arg;
7749 * Add a null check since public icalls can be called with 'call' which
7750 * does no such check.
7752 mono_mb_emit_byte (mb, CEE_LDARG_0);
7753 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7754 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7755 mono_mb_patch_branch (mb, pos);
7757 mono_mb_emit_byte (mb, CEE_LDARG_0);
7760 for (i = 0; i < sig->param_count; i++)
7761 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7764 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7765 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7766 mono_mb_emit_calli (mb, csig);
7768 g_assert (piinfo->addr);
7769 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7771 if (check_exceptions)
7772 emit_thread_interrupt_checkpoint (mb);
7773 mono_mb_emit_byte (mb, CEE_RET);
7775 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7776 info->d.managed_to_native.method = method;
7778 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7780 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7789 g_assert (piinfo->addr);
7792 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7793 mono_method_get_marshal_info (method, mspecs);
7795 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7797 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7798 info->d.managed_to_native.method = method;
7800 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7802 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7807 for (i = sig->param_count; i >= 0; i--)
7809 mono_metadata_free_marshal_spec (mspecs [i]);
7813 /* mono_method_print_code (res); */
7819 * mono_marshal_get_native_func_wrapper:
7820 * @image: The image to use for memory allocation and for looking up custom marshallers.
7821 * @sig: The signature of the function
7822 * @func: The native function to wrap
7824 * Returns a wrapper method around native functions, similar to the pinvoke
7828 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7829 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7831 MonoMethodSignature *csig;
7833 SignaturePointerPair key, *new_key;
7834 MonoMethodBuilder *mb;
7843 // Generic types are not safe to place in MonoImage caches.
7844 g_assert (!sig->is_inflated);
7846 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7847 if ((res = mono_marshal_find_in_cache (cache, &key)))
7850 name = g_strdup_printf ("wrapper_native_%p", func);
7851 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7852 mb->method->save_lmf = 1;
7855 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7858 csig = mono_metadata_signature_dup_full (image, sig);
7861 new_key = g_new (SignaturePointerPair,1);
7862 new_key->sig = csig;
7863 new_key->pointer = func;
7865 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7871 mono_marshal_set_wrapper_info (res, NULL);
7877 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7881 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7883 MonoMethodSignature *sig, *csig;
7884 MonoMethodBuilder *mb;
7889 MonoMethodPInvoke mpiinfo;
7890 MonoMethodPInvoke *piinfo = &mpiinfo;
7891 MonoMarshalSpec **mspecs;
7892 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7893 MonoImage *image = invoke->klass->image;
7896 // FIXME: include UnmanagedFunctionPointerAttribute info
7899 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7901 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7903 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7906 memset (&mpiinfo, 0, sizeof (mpiinfo));
7907 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7909 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7910 mono_method_get_marshal_info (invoke, mspecs);
7911 /* Freed below so don't alloc from mempool */
7912 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7915 name = g_strdup_printf ("wrapper_aot_native");
7916 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7917 mb->method->save_lmf = 1;
7920 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7923 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7924 info->d.managed_to_native.method = invoke;
7926 g_assert (!sig->hasthis);
7927 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7929 res = mono_mb_create_and_cache_full (cache, invoke,
7930 mb, csig, csig->param_count + 16,
7934 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7936 mono_metadata_free_marshal_spec (mspecs [i]);
7944 * mono_marshal_emit_managed_wrapper:
7946 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7947 * the delegate which wraps the managed method to be called. For closed delegates,
7948 * it could have fewer parameters than the method it wraps.
7949 * THIS_LOC is the memory location where the target of the delegate is stored.
7952 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7955 MonoMethodSignature *sig, *csig;
7961 /* we first do all conversions */
7962 for (i = 0; i < sig->param_count; i ++) {
7963 MonoType *t = sig->params [i];
7966 case MONO_TYPE_OBJECT:
7967 case MONO_TYPE_CLASS:
7968 case MONO_TYPE_VALUETYPE:
7969 case MONO_TYPE_ARRAY:
7970 case MONO_TYPE_SZARRAY:
7971 case MONO_TYPE_STRING:
7972 case MONO_TYPE_BOOLEAN:
7973 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7977 if (!sig->ret->byref) {
7978 switch (sig->ret->type) {
7979 case MONO_TYPE_STRING:
7980 csig->ret = &mono_defaults.int_class->byval_arg;
7987 MonoMethodSignature *sig, *csig;
7988 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
7989 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
7990 int leave_try_pos, leave_catch_pos, ex_m1_pos;
7991 gboolean closed = FALSE;
7996 /* allocate local 0 (pointer) src_ptr */
7997 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7998 /* allocate local 1 (pointer) dst_ptr */
7999 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8000 /* allocate local 2 (boolean) delete_old */
8001 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8003 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8004 /* Closed delegate */
8005 g_assert (sig->param_count == invoke_sig->param_count + 1);
8007 /* Use a new signature without the first argument */
8008 sig = mono_metadata_signature_dup (sig);
8009 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8010 sig->param_count --;
8013 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8014 /* allocate local 3 to store the return value */
8015 mono_mb_add_local (mb, sig->ret);
8018 if (MONO_TYPE_ISSTRUCT (sig->ret))
8019 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8021 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8022 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8024 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8025 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8030 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8031 * mono_threads_attach_coop ();
8035 * ret = method (...);
8036 * } catch (Exception e) {
8037 * ex = mono_gchandle_new (e, false);
8039 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8040 * mono_threads_detach_coop ();
8043 * mono_marshal_ftnptr_eh_callback (ex);
8049 clauses = g_new0 (MonoExceptionClause, 2);
8051 clause_catch = &clauses [0];
8052 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8053 clause_catch->data.catch_class = mono_defaults.exception_class;
8055 clause_finally = &clauses [1];
8056 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8058 mono_mb_emit_icon (mb, 0);
8059 mono_mb_emit_stloc (mb, 2);
8061 mono_mb_emit_icon (mb, -1);
8062 mono_mb_emit_byte (mb, CEE_CONV_U4);
8063 mono_mb_emit_stloc (mb, ex_local);
8066 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8068 if (!mono_threads_is_coop_enabled ()) {
8069 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8070 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8072 /* mono_threads_attach_coop (); */
8073 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8074 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8075 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8076 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8077 mono_mb_emit_stloc (mb, attach_cookie_local);
8080 /* <interrupt check> */
8081 emit_thread_interrupt_checkpoint (mb);
8083 /* we first do all conversions */
8084 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8085 for (i = 0; i < sig->param_count; i ++) {
8086 MonoType *t = sig->params [i];
8089 case MONO_TYPE_OBJECT:
8090 case MONO_TYPE_CLASS:
8091 case MONO_TYPE_VALUETYPE:
8092 case MONO_TYPE_ARRAY:
8093 case MONO_TYPE_SZARRAY:
8094 case MONO_TYPE_STRING:
8095 case MONO_TYPE_BOOLEAN:
8096 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8106 if (target_handle) {
8107 mono_mb_emit_icon (mb, (gint32)target_handle);
8108 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8111 g_assert_not_reached ();
8113 } else if (closed) {
8114 mono_mb_emit_icon (mb, (gint32)target_handle);
8115 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8118 for (i = 0; i < sig->param_count; i++) {
8119 MonoType *t = sig->params [i];
8121 if (tmp_locals [i]) {
8123 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8125 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8128 mono_mb_emit_ldarg (mb, i);
8131 /* ret = method (...) */
8132 mono_mb_emit_managed_call (mb, method, NULL);
8134 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8135 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8136 mono_class_init (klass);
8137 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8138 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8139 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8140 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8141 mono_mb_emit_stloc (mb, m->vtaddr_var);
8145 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8146 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8147 } else if (!sig->ret->byref) {
8148 switch (sig->ret->type) {
8149 case MONO_TYPE_VOID:
8151 case MONO_TYPE_BOOLEAN:
8154 case MONO_TYPE_CHAR:
8166 case MONO_TYPE_OBJECT:
8167 mono_mb_emit_stloc (mb, 3);
8169 case MONO_TYPE_STRING:
8170 csig->ret = &mono_defaults.int_class->byval_arg;
8171 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8173 case MONO_TYPE_VALUETYPE:
8174 case MONO_TYPE_CLASS:
8175 case MONO_TYPE_SZARRAY:
8176 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8179 g_warning ("return type 0x%02x unknown", sig->ret->type);
8180 g_assert_not_reached ();
8183 mono_mb_emit_stloc (mb, 3);
8186 /* Convert byref arguments back */
8187 for (i = 0; i < sig->param_count; i ++) {
8188 MonoType *t = sig->params [i];
8189 MonoMarshalSpec *spec = mspecs [i + 1];
8191 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8192 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8194 else if (t->byref) {
8196 case MONO_TYPE_CLASS:
8197 case MONO_TYPE_VALUETYPE:
8198 case MONO_TYPE_OBJECT:
8199 case MONO_TYPE_STRING:
8200 case MONO_TYPE_BOOLEAN:
8201 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8207 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8208 /* The [Out] information is encoded in the delegate signature */
8210 case MONO_TYPE_SZARRAY:
8211 case MONO_TYPE_CLASS:
8212 case MONO_TYPE_VALUETYPE:
8213 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8216 g_assert_not_reached ();
8221 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8225 /* catch (Exception e) { */
8226 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8227 clause_catch->handler_offset = mono_mb_get_label (mb);
8229 mono_mb_emit_stloc (mb, e_local);
8231 /* ex = mono_gchandle_new (e, false); */
8232 mono_mb_emit_ldloc (mb, e_local);
8233 mono_mb_emit_icon (mb, 0);
8234 mono_mb_emit_icall (mb, mono_gchandle_new);
8235 mono_mb_emit_stloc (mb, ex_local);
8237 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8240 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8243 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8244 clause_finally->handler_offset = mono_mb_get_label (mb);
8246 if (!mono_threads_is_coop_enabled ()) {
8247 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8248 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8250 /* mono_threads_detach_coop (); */
8251 mono_mb_emit_ldloc (mb, attach_cookie_local);
8252 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8253 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8257 mono_mb_emit_ldloc (mb, ex_local);
8258 mono_mb_emit_icon (mb, -1);
8259 mono_mb_emit_byte (mb, CEE_CONV_U4);
8260 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8262 /* mono_marshal_ftnptr_eh_callback (ex) */
8263 mono_mb_emit_ldloc (mb, ex_local);
8264 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8267 mono_mb_patch_branch (mb, ex_m1_pos);
8269 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8271 /* } [endfinally] */
8272 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8274 mono_mb_patch_branch (mb, leave_try_pos);
8275 mono_mb_patch_branch (mb, leave_catch_pos);
8278 if (m->retobj_var) {
8279 mono_mb_emit_ldloc (mb, m->retobj_var);
8280 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8281 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8284 if (!MONO_TYPE_IS_VOID(sig->ret))
8285 mono_mb_emit_ldloc (mb, 3);
8286 mono_mb_emit_byte (mb, CEE_RET);
8289 mono_mb_set_clauses (mb, 2, clauses);
8297 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8299 MonoMethodSignature *sig;
8304 * Under windows, delegates passed to native code must use the STDCALL
8305 * calling convention.
8307 csig->call_convention = MONO_CALL_STDCALL;
8310 sig = mono_method_signature (method);
8312 /* Change default calling convention if needed */
8313 /* Why is this a modopt ? */
8314 if (sig->ret && sig->ret->num_mods) {
8315 for (i = 0; i < sig->ret->num_mods; ++i) {
8317 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8318 g_assert (mono_error_ok (&error));
8319 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8320 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8321 csig->call_convention = MONO_CALL_C;
8322 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8323 csig->call_convention = MONO_CALL_STDCALL;
8324 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8325 csig->call_convention = MONO_CALL_FASTCALL;
8326 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8327 csig->call_convention = MONO_CALL_THISCALL;
8334 * generates IL code to call managed methods from unmanaged code
8335 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8338 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8341 MonoMethodSignature *sig, *csig, *invoke_sig;
8342 MonoMethodBuilder *mb;
8343 MonoMethod *res, *invoke;
8344 MonoMarshalSpec **mspecs;
8345 MonoMethodPInvoke piinfo;
8348 EmitMarshalContext m;
8350 g_assert (method != NULL);
8351 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8354 * FIXME: Should cache the method+delegate type pair, since the same method
8355 * could be called with different delegates, thus different marshalling
8358 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8360 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8363 invoke = mono_get_delegate_invoke (delegate_klass);
8364 invoke_sig = mono_method_signature (invoke);
8366 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8367 mono_method_get_marshal_info (invoke, mspecs);
8369 sig = mono_method_signature (method);
8371 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8373 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8374 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8376 /* we copy the signature, so that we can modify it */
8378 /* Need to free this later */
8379 csig = mono_metadata_signature_dup (invoke_sig);
8381 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8385 memset (&m, 0, sizeof (m));
8391 m.image = method->klass->image;
8393 mono_marshal_set_callconv_from_modopt (invoke, csig);
8395 /* The attribute is only available in Net 2.0 */
8396 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8397 MonoCustomAttrInfo *cinfo;
8398 MonoCustomAttrEntry *attr;
8401 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8402 * contents of the attribute without constructing it, as that might not be
8403 * possible when running in cross-compiling mode.
8405 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8406 mono_error_assert_ok (&error);
8409 for (i = 0; i < cinfo->num_attrs; ++i) {
8410 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8411 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8412 attr = &cinfo->attrs [i];
8418 MonoArray *typed_args, *named_args;
8419 CattrNamedArg *arginfo;
8423 MonoBoolean set_last_error = 0;
8426 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8427 g_assert (mono_error_ok (&error));
8428 g_assert (mono_array_length (typed_args) == 1);
8431 o = mono_array_get (typed_args, MonoObject*, 0);
8432 call_conv = *(gint32*)mono_object_unbox (o);
8435 for (i = 0; i < mono_array_length (named_args); ++i) {
8436 CattrNamedArg *narg = &arginfo [i];
8438 o = mono_array_get (named_args, MonoObject*, i);
8440 g_assert (narg->field);
8441 if (!strcmp (narg->field->name, "CharSet")) {
8442 charset = *(gint32*)mono_object_unbox (o);
8443 } else if (!strcmp (narg->field->name, "SetLastError")) {
8444 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8445 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8446 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8447 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8448 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8450 g_assert_not_reached ();
8456 memset (&piinfo, 0, sizeof (piinfo));
8458 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8460 csig->call_convention = call_conv - 1;
8463 if (cinfo && !cinfo->cached)
8464 mono_custom_attrs_free (cinfo);
8467 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8469 if (!target_handle) {
8472 // FIXME: Associate it with the method+delegate_klass pair
8473 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8474 info->d.native_to_managed.method = method;
8475 info->d.native_to_managed.klass = delegate_klass;
8477 res = mono_mb_create_and_cache_full (cache, method,
8478 mb, csig, sig->param_count + 16,
8484 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8488 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8490 mono_metadata_free_marshal_spec (mspecs [i]);
8493 /* mono_method_print_code (res); */
8499 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8503 MonoMethodSignature *sig;
8504 MonoMethodBuilder *mb;
8509 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8511 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8514 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8515 MonoMethodSignature *csig;
8516 MonoMarshalSpec **mspecs;
8517 EmitMarshalContext m;
8519 sig = mono_method_signature (method);
8520 g_assert (!sig->hasthis);
8522 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8523 mono_method_get_marshal_info (method, mspecs);
8525 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8526 csig = mono_metadata_signature_dup_full (image, sig);
8530 memset (&m, 0, sizeof (m));
8538 mono_marshal_set_callconv_from_modopt (method, csig);
8540 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8542 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8547 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8550 for (i = sig->param_count; i >= 0; i--)
8552 mono_metadata_free_marshal_spec (mspecs [i]);
8555 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8556 mono_error_assert_ok (&error);
8557 return compiled_ptr;
8560 sig = mono_method_signature (method);
8561 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8563 param_count = sig->param_count + sig->hasthis;
8565 for (i = 0; i < param_count; i++)
8566 mono_mb_emit_ldarg (mb, i);
8568 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8569 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8571 mono_mb_emit_op (mb, CEE_CALL, method);
8572 mono_mb_emit_byte (mb, CEE_RET);
8577 method = mono_mb_create (mb, sig, param_count, NULL);
8580 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8581 mono_error_assert_ok (&error);
8582 return compiled_ptr;
8588 * The code directly following this is the cache hit, value positive branch
8590 * This function takes a new method builder with 0 locals and adds two locals
8591 * to create multiple out-branches and the fall through state of having the object
8592 * on the stack after a cache miss
8595 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8596 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8597 MonoMethodBuilder *mb)
8601 /* allocate local 0 (pointer) obj_vtable */
8602 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8603 /* allocate local 1 (pointer) cached_vtable */
8604 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8607 mono_mb_emit_ldarg (mb, obj_arg_position);
8608 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8610 /*obj_vtable = obj->vtable;*/
8611 mono_mb_emit_ldarg (mb, obj_arg_position);
8612 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8613 mono_mb_emit_byte (mb, CEE_LDIND_I);
8614 mono_mb_emit_stloc (mb, 0);
8616 /* cached_vtable = *cache*/
8617 mono_mb_emit_ldarg (mb, cache_arg_position);
8618 mono_mb_emit_byte (mb, CEE_LDIND_I);
8619 mono_mb_emit_stloc (mb, 1);
8621 mono_mb_emit_ldloc (mb, 1);
8622 mono_mb_emit_byte (mb, CEE_LDC_I4);
8623 mono_mb_emit_i4 (mb, ~0x1);
8624 mono_mb_emit_byte (mb, CEE_CONV_I);
8625 mono_mb_emit_byte (mb, CEE_AND);
8626 mono_mb_emit_ldloc (mb, 0);
8627 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8628 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8630 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8631 mono_mb_emit_ldloc (mb, 1);
8632 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8633 mono_mb_emit_byte (mb, CEE_CONV_U);
8634 mono_mb_emit_byte (mb, CEE_AND);
8635 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8636 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8639 mono_mb_patch_branch (mb, cache_miss_pos);
8642 mono_mb_emit_ldarg (mb, obj_arg_position);
8643 mono_mb_emit_ldarg (mb, class_arg_position);
8644 mono_mb_emit_ldarg (mb, cache_arg_position);
8645 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8648 #endif /* DISABLE_JIT */
8651 * This does the equivalent of mono_object_castclass_with_cache.
8652 * The wrapper info for the wrapper is a WrapperInfo structure.
8655 mono_marshal_get_castclass_with_cache (void)
8657 static MonoMethod *cached;
8659 MonoMethodBuilder *mb;
8660 MonoMethodSignature *sig;
8661 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8664 const int obj_arg_position = 0;
8665 const int class_arg_position = 1;
8666 const int cache_arg_position = 2;
8671 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8672 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8673 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8674 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8675 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8676 sig->ret = &mono_defaults.object_class->byval_arg;
8680 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8681 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8682 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8685 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8686 mono_mb_emit_ldarg (mb, obj_arg_position);
8687 mono_mb_emit_byte (mb, CEE_RET);
8690 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8691 mono_mb_patch_branch (mb, invalid_cast_pos);
8692 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8695 mono_mb_patch_branch (mb, return_null_pos);
8696 mono_mb_emit_byte (mb, CEE_LDNULL);
8697 mono_mb_emit_byte (mb, CEE_RET);
8698 #endif /* DISABLE_JIT */
8700 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8701 res = mono_mb_create (mb, sig, 8, info);
8704 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8705 mono_free_method (res);
8706 mono_metadata_free_method_signature (sig);
8713 /* this is an icall */
8715 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8718 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8719 if (mono_error_set_pending_exception (&error))
8722 #ifndef DISABLE_REMOTING
8723 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8727 uintptr_t cache_update = (uintptr_t)obj->vtable;
8729 cache_update = cache_update | 0x1;
8731 *cache = cache_update;
8737 * This does the equivalent of mono_object_isinst_with_cache.
8738 * The wrapper info for the wrapper is a WrapperInfo structure.
8741 mono_marshal_get_isinst_with_cache (void)
8743 static MonoMethod *cached;
8745 MonoMethodBuilder *mb;
8746 MonoMethodSignature *sig;
8747 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8750 const int obj_arg_position = 0;
8751 const int class_arg_position = 1;
8752 const int cache_arg_position = 2;
8757 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8758 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8760 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8762 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8764 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8765 sig->ret = &mono_defaults.object_class->byval_arg;
8769 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8770 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8771 // Return the object gotten via the slow path.
8772 mono_mb_emit_byte (mb, CEE_RET);
8775 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8776 mono_mb_patch_branch (mb, return_null_pos);
8777 mono_mb_emit_byte (mb, CEE_LDNULL);
8778 mono_mb_emit_byte (mb, CEE_RET);
8781 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8782 mono_mb_emit_ldarg (mb, obj_arg_position);
8783 mono_mb_emit_byte (mb, CEE_RET);
8786 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8787 res = mono_mb_create (mb, sig, 8, info);
8790 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8791 mono_free_method (res);
8792 mono_metadata_free_method_signature (sig);
8800 * mono_marshal_get_isinst:
8801 * @klass: the type of the field
8803 * This method generates a function which can be used to check if an object is
8804 * an instance of the given type, icluding the case where the object is a proxy.
8805 * The generated function has the following signature:
8806 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8809 mono_marshal_get_isinst (MonoClass *klass)
8811 static MonoMethodSignature *isint_sig = NULL;
8815 int pos_was_ok, pos_end;
8816 #ifndef DISABLE_REMOTING
8817 int pos_end2, pos_failed;
8820 MonoMethodBuilder *mb;
8822 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8823 if ((res = mono_marshal_find_in_cache (cache, klass)))
8827 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8828 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8829 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8830 isint_sig->pinvoke = 0;
8833 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8834 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8837 mb->method->save_lmf = 1;
8840 /* check if the object is a proxy that needs special cast */
8841 mono_mb_emit_ldarg (mb, 0);
8842 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8843 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8845 /* The result of MONO_CISINST can be:
8846 0) the type check succeeded
8847 1) the type check did not succeed
8848 2) a CanCastTo call is needed */
8849 #ifndef DISABLE_REMOTING
8850 mono_mb_emit_byte (mb, CEE_DUP);
8851 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8853 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8854 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8856 /* get the real proxy from the transparent proxy*/
8858 mono_mb_emit_ldarg (mb, 0);
8859 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8860 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8864 mono_mb_patch_branch (mb, pos_failed);
8865 mono_mb_emit_byte (mb, CEE_LDNULL);
8866 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8870 mono_mb_patch_branch (mb, pos_was_ok);
8871 mono_mb_emit_byte (mb, CEE_POP);
8872 mono_mb_emit_ldarg (mb, 0);
8876 mono_mb_patch_branch (mb, pos_end);
8877 mono_mb_patch_branch (mb, pos_end2);
8878 mono_mb_emit_byte (mb, CEE_RET);
8880 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8884 mono_mb_emit_byte (mb, CEE_LDNULL);
8885 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8889 mono_mb_patch_branch (mb, pos_was_ok);
8890 mono_mb_emit_ldarg (mb, 0);
8894 mono_mb_patch_branch (mb, pos_end);
8895 mono_mb_emit_byte (mb, CEE_RET);
8896 #endif /* DISABLE_REMOTING */
8897 #endif /* DISABLE_JIT */
8899 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8900 info->d.proxy.klass = klass;
8901 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8908 * mono_marshal_get_castclass:
8909 * @klass: the type of the field
8911 * This method generates a function which can be used to cast an object to
8912 * an instance of the given type, icluding the case where the object is a proxy.
8913 * The generated function has the following signature:
8914 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8915 * The wrapper info for the wrapper is a WrapperInfo structure.
8918 mono_marshal_get_castclass (MonoClass *klass)
8920 static MonoMethodSignature *castclass_sig = NULL;
8923 #ifndef DISABLE_REMOTING
8924 int pos_was_ok, pos_was_ok2;
8927 MonoMethodBuilder *mb;
8930 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8931 if ((res = mono_marshal_find_in_cache (cache, klass)))
8934 if (!castclass_sig) {
8935 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8936 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8937 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8938 castclass_sig->pinvoke = 0;
8941 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8942 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8945 mb->method->save_lmf = 1;
8948 /* check if the object is a proxy that needs special cast */
8949 mono_mb_emit_ldarg (mb, 0);
8950 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8951 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8953 /* The result of MONO_CCASTCLASS can be:
8954 0) the cast is valid
8955 1) cast of unknown proxy type
8956 or an exception if the cast is is invalid
8958 #ifndef DISABLE_REMOTING
8959 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8961 /* get the real proxy from the transparent proxy*/
8963 mono_mb_emit_ldarg (mb, 0);
8964 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8965 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8968 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8971 mono_mb_patch_branch (mb, pos_was_ok);
8972 mono_mb_patch_branch (mb, pos_was_ok2);
8974 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8975 mono_mb_emit_byte (mb, CEE_POP);
8976 #endif /* DISABLE_REMOTING */
8978 mono_mb_emit_ldarg (mb, 0);
8981 mono_mb_emit_byte (mb, CEE_RET);
8982 #endif /* DISABLE_JIT */
8984 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8986 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8994 * mono_marshal_get_struct_to_ptr:
8997 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8998 * The wrapper info for the wrapper is a WrapperInfo structure.
9001 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9003 MonoMethodBuilder *mb;
9004 static MonoMethod *stoptr = NULL;
9008 g_assert (klass != NULL);
9010 mono_marshal_load_type_info (klass);
9012 if (klass->marshal_info->str_to_ptr)
9013 return klass->marshal_info->str_to_ptr;
9016 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9019 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9022 if (klass->blittable) {
9023 mono_mb_emit_byte (mb, CEE_LDARG_1);
9024 mono_mb_emit_byte (mb, CEE_LDARG_0);
9025 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9026 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9027 mono_mb_emit_byte (mb, CEE_PREFIX1);
9028 mono_mb_emit_byte (mb, CEE_CPBLK);
9031 /* allocate local 0 (pointer) src_ptr */
9032 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9033 /* allocate local 1 (pointer) dst_ptr */
9034 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9035 /* allocate local 2 (boolean) delete_old */
9036 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9037 mono_mb_emit_byte (mb, CEE_LDARG_2);
9038 mono_mb_emit_stloc (mb, 2);
9040 /* initialize src_ptr to point to the start of object data */
9041 mono_mb_emit_byte (mb, CEE_LDARG_0);
9042 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9043 mono_mb_emit_stloc (mb, 0);
9045 /* initialize dst_ptr */
9046 mono_mb_emit_byte (mb, CEE_LDARG_1);
9047 mono_mb_emit_stloc (mb, 1);
9049 emit_struct_conv (mb, klass, FALSE);
9052 mono_mb_emit_byte (mb, CEE_RET);
9054 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9055 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9058 mono_marshal_lock ();
9059 if (!klass->marshal_info->str_to_ptr)
9060 klass->marshal_info->str_to_ptr = res;
9062 res = klass->marshal_info->str_to_ptr;
9063 mono_marshal_unlock ();
9068 * mono_marshal_get_ptr_to_struct:
9071 * generates IL code for PtrToStructure (IntPtr src, object structure)
9072 * The wrapper info for the wrapper is a WrapperInfo structure.
9075 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9077 MonoMethodBuilder *mb;
9078 static MonoMethodSignature *ptostr = NULL;
9082 g_assert (klass != NULL);
9084 mono_marshal_load_type_info (klass);
9086 if (klass->marshal_info->ptr_to_str)
9087 return klass->marshal_info->ptr_to_str;
9090 MonoMethodSignature *sig;
9092 /* Create the signature corresponding to
9093 static void PtrToStructure (IntPtr ptr, object structure);
9094 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9095 sig = mono_create_icall_signature ("void ptr object");
9096 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9098 mono_memory_barrier ();
9102 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9105 if (klass->blittable) {
9106 mono_mb_emit_byte (mb, CEE_LDARG_1);
9107 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9108 mono_mb_emit_byte (mb, CEE_LDARG_0);
9109 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9110 mono_mb_emit_byte (mb, CEE_PREFIX1);
9111 mono_mb_emit_byte (mb, CEE_CPBLK);
9114 /* allocate local 0 (pointer) src_ptr */
9115 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9116 /* allocate local 1 (pointer) dst_ptr */
9117 mono_mb_add_local (mb, &klass->this_arg);
9119 /* initialize src_ptr to point to the start of object data */
9120 mono_mb_emit_byte (mb, CEE_LDARG_0);
9121 mono_mb_emit_stloc (mb, 0);
9123 /* initialize dst_ptr */
9124 mono_mb_emit_byte (mb, CEE_LDARG_1);
9125 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9126 mono_mb_emit_stloc (mb, 1);
9128 emit_struct_conv (mb, klass, TRUE);
9131 mono_mb_emit_byte (mb, CEE_RET);
9133 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9134 res = mono_mb_create (mb, ptostr, 0, info);
9137 mono_marshal_lock ();
9138 if (!klass->marshal_info->ptr_to_str)
9139 klass->marshal_info->ptr_to_str = res;
9141 res = klass->marshal_info->ptr_to_str;
9142 mono_marshal_unlock ();
9147 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9148 * This is used to avoid infinite recursion since it is hard to determine where to
9149 * replace a method with its synchronized wrapper, and where not.
9150 * The runtime should execute METHOD instead of the wrapper.
9151 * The wrapper info for the wrapper is a WrapperInfo structure.
9154 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9156 MonoMethodBuilder *mb;
9158 MonoMethodSignature *sig;
9160 MonoGenericContext *ctx = NULL;
9161 MonoGenericContainer *container = NULL;
9163 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9164 ctx = &((MonoMethodInflated*)method)->context;
9165 method = ((MonoMethodInflated*)method)->declaring;
9166 container = mono_method_get_generic_container (method);
9168 container = method->klass->generic_container;
9169 g_assert (container);
9172 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9174 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9175 mono_mb_emit_byte (mb, CEE_RET);
9177 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9179 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9180 info->d.synchronized_inner.method = method;
9181 res = mono_mb_create (mb, sig, 0, info);
9185 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9186 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9192 * generates IL code for the synchronized wrapper: the generated method
9193 * calls METHOD while locking 'this' or the parent type.
9196 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9198 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9199 MonoMethodSignature *sig;
9200 MonoExceptionClause *clause;
9201 MonoMethodBuilder *mb;
9205 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9206 MonoGenericContext *ctx = NULL;
9207 MonoMethod *orig_method = NULL;
9208 MonoGenericContainer *container = NULL;
9212 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9215 /* FIXME: Support generic methods too */
9216 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9217 orig_method = method;
9218 ctx = &((MonoMethodInflated*)method)->context;
9219 method = ((MonoMethodInflated*)method)->declaring;
9220 container = mono_method_get_generic_container (method);
9222 container = method->klass->generic_container;
9223 g_assert (container);
9230 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9231 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9235 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9236 if ((res = mono_marshal_find_in_cache (cache, method)))
9240 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9243 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9245 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9246 info->d.synchronized.method = method;
9249 mb->skip_visibility = 1;
9251 if (!MONO_TYPE_IS_VOID (sig->ret))
9252 ret_local = mono_mb_add_local (mb, sig->ret);
9255 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9256 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9258 /* This will throw the type load exception when the wrapper is compiled */
9259 mono_mb_emit_byte (mb, CEE_LDNULL);
9260 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9261 mono_mb_emit_byte (mb, CEE_POP);
9263 if (!MONO_TYPE_IS_VOID (sig->ret))
9264 mono_mb_emit_ldloc (mb, ret_local);
9265 mono_mb_emit_byte (mb, CEE_RET);
9268 res = mono_mb_create_and_cache_full (cache, method,
9269 mb, sig, sig->param_count + 16, info, NULL);
9277 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9278 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9280 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9281 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9284 mono_marshal_lock ();
9286 if (!enter_method) {
9287 MonoMethodDesc *desc;
9289 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9290 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9291 g_assert (enter_method);
9292 mono_method_desc_free (desc);
9294 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9295 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9296 g_assert (exit_method);
9297 mono_method_desc_free (desc);
9299 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9300 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9301 g_assert (gettypefromhandle_method);
9302 mono_method_desc_free (desc);
9305 mono_marshal_unlock ();
9308 /* Push this or the type object */
9309 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9310 /* We have special handling for this in the JIT */
9311 int index = mono_mb_add_data (mb, method->klass);
9312 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9313 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9314 mono_mb_emit_i4 (mb, index);
9316 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9319 mono_mb_emit_ldarg (mb, 0);
9320 mono_mb_emit_stloc (mb, this_local);
9322 /* Call Monitor::Enter() */
9323 mono_mb_emit_ldloc (mb, this_local);
9324 mono_mb_emit_ldloc_addr (mb, taken_local);
9325 mono_mb_emit_managed_call (mb, enter_method, NULL);
9327 clause->try_offset = mono_mb_get_label (mb);
9329 /* Call the method */
9331 mono_mb_emit_ldarg (mb, 0);
9332 for (i = 0; i < sig->param_count; i++)
9333 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9337 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9338 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9340 mono_mb_emit_managed_call (mb, method, NULL);
9343 if (!MONO_TYPE_IS_VOID (sig->ret))
9344 mono_mb_emit_stloc (mb, ret_local);
9346 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9348 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9349 clause->handler_offset = mono_mb_get_label (mb);
9351 /* Call Monitor::Exit() if needed */
9352 mono_mb_emit_ldloc (mb, taken_local);
9353 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9354 mono_mb_emit_ldloc (mb, this_local);
9355 mono_mb_emit_managed_call (mb, exit_method, NULL);
9356 mono_mb_patch_branch (mb, pos2);
9357 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9359 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9361 mono_mb_patch_branch (mb, pos);
9362 if (!MONO_TYPE_IS_VOID (sig->ret))
9363 mono_mb_emit_ldloc (mb, ret_local);
9364 mono_mb_emit_byte (mb, CEE_RET);
9366 mono_mb_set_clauses (mb, 1, clause);
9371 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9372 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9374 res = mono_mb_create_and_cache_full (cache, method,
9375 mb, sig, sig->param_count + 16, info, NULL);
9384 * the returned method calls 'method' unboxing the this argument
9387 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9389 MonoMethodSignature *sig = mono_method_signature (method);
9391 MonoMethodBuilder *mb;
9396 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9398 if ((res = mono_marshal_find_in_cache (cache, method)))
9401 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9403 g_assert (sig->hasthis);
9406 mono_mb_emit_ldarg (mb, 0);
9407 mono_mb_emit_icon (mb, sizeof (MonoObject));
9408 mono_mb_emit_byte (mb, CEE_ADD);
9409 for (i = 0; i < sig->param_count; ++i)
9410 mono_mb_emit_ldarg (mb, i + 1);
9411 mono_mb_emit_managed_call (mb, method, NULL);
9412 mono_mb_emit_byte (mb, CEE_RET);
9415 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9416 info->d.unbox.method = method;
9418 res = mono_mb_create_and_cache_full (cache, method,
9419 mb, sig, sig->param_count + 16, info, NULL);
9422 /* mono_method_print_code (res); */
9428 STELEMREF_OBJECT, /*no check at all*/
9429 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9430 STELEMREF_CLASS, /*only the klass->parents check*/
9431 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9432 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9433 STELEMREF_KIND_COUNT
9436 static const char *strelemref_wrapper_name[] = {
9437 "object", "sealed_class", "class", "interface", "complex"
9441 is_monomorphic_array (MonoClass *klass)
9443 MonoClass *element_class;
9444 if (klass->rank != 1)
9447 element_class = klass->element_class;
9448 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9452 get_virtual_stelemref_kind (MonoClass *element_class)
9454 if (element_class == mono_defaults.object_class)
9455 return STELEMREF_OBJECT;
9456 if (is_monomorphic_array (element_class))
9457 return STELEMREF_SEALED_CLASS;
9458 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9459 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9460 #ifdef COMPRESSED_INTERFACE_BITMAP
9461 return STELEMREF_COMPLEX;
9463 return STELEMREF_INTERFACE;
9465 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9466 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9467 return STELEMREF_COMPLEX;
9468 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9469 return STELEMREF_SEALED_CLASS;
9470 return STELEMREF_CLASS;
9476 load_array_element_address (MonoMethodBuilder *mb)
9478 mono_mb_emit_ldarg (mb, 0);
9479 mono_mb_emit_ldarg (mb, 1);
9480 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9484 load_array_class (MonoMethodBuilder *mb, int aklass)
9486 mono_mb_emit_ldarg (mb, 0);
9487 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9488 mono_mb_emit_byte (mb, CEE_LDIND_I);
9489 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9490 mono_mb_emit_byte (mb, CEE_LDIND_I);
9491 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9492 mono_mb_emit_byte (mb, CEE_LDIND_I);
9493 mono_mb_emit_stloc (mb, aklass);
9497 load_value_class (MonoMethodBuilder *mb, int vklass)
9499 mono_mb_emit_ldarg (mb, 2);
9500 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9501 mono_mb_emit_byte (mb, CEE_LDIND_I);
9502 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9503 mono_mb_emit_byte (mb, CEE_LDIND_I);
9504 mono_mb_emit_stloc (mb, vklass);
9510 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9512 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9513 printf ("slow vstore of %s\n", name);
9519 * The wrapper info for the wrapper is a WrapperInfo structure.
9522 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9523 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9524 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9525 * - Add a case for arrays of arrays.
9528 get_virtual_stelemref_wrapper (int kind)
9530 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9531 static MonoMethodSignature *signature;
9532 MonoMethodBuilder *mb;
9535 const char *param_names [16];
9537 int aklass, vklass, vtable, uiid;
9538 int array_slot_addr;
9541 if (cached_methods [kind])
9542 return cached_methods [kind];
9544 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9545 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9549 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9551 /* void this::stelemref (size_t idx, void* value) */
9552 sig->ret = &mono_defaults.void_class->byval_arg;
9553 sig->hasthis = TRUE;
9554 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9555 sig->params [1] = &mono_defaults.object_class->byval_arg;
9560 param_names [0] = "index";
9561 param_names [1] = "value";
9562 mono_mb_set_param_names (mb, param_names);
9564 /*For now simply call plain old stelemref*/
9566 case STELEMREF_OBJECT:
9567 /* ldelema (implicit bound check) */
9568 load_array_element_address (mb);
9570 mono_mb_emit_ldarg (mb, 2);
9571 mono_mb_emit_byte (mb, CEE_STIND_REF);
9572 mono_mb_emit_byte (mb, CEE_RET);
9575 case STELEMREF_COMPLEX:
9577 <ldelema (bound check)>
9580 if (!mono_object_isinst (value, aklass))
9584 *array_slot_addr = value;
9587 throw new ArrayTypeMismatchException ();
9590 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9591 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9595 /*Use this to debug/record stores that are going thru the slow path*/
9596 MonoMethodSignature *csig;
9597 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9598 csig->ret = &mono_defaults.void_class->byval_arg;
9599 csig->params [0] = &mono_defaults.object_class->byval_arg;
9600 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9601 csig->params [2] = &mono_defaults.object_class->byval_arg;
9602 mono_mb_emit_ldarg (mb, 0);
9603 mono_mb_emit_ldarg (mb, 1);
9604 mono_mb_emit_ldarg (mb, 2);
9605 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9609 /* ldelema (implicit bound check) */
9610 load_array_element_address (mb);
9611 mono_mb_emit_stloc (mb, array_slot_addr);
9613 /* if (!value) goto do_store */
9614 mono_mb_emit_ldarg (mb, 2);
9615 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9617 /* aklass = array->vtable->klass->element_class */
9618 load_array_class (mb, aklass);
9620 /*if (mono_object_isinst (value, aklass)) */
9621 mono_mb_emit_ldarg (mb, 2);
9622 mono_mb_emit_ldloc (mb, aklass);
9623 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9624 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9627 mono_mb_patch_branch (mb, b1);
9628 mono_mb_emit_ldloc (mb, array_slot_addr);
9629 mono_mb_emit_ldarg (mb, 2);
9630 mono_mb_emit_byte (mb, CEE_STIND_REF);
9631 mono_mb_emit_byte (mb, CEE_RET);
9634 mono_mb_patch_branch (mb, b2);
9636 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9639 case STELEMREF_SEALED_CLASS:
9641 <ldelema (bound check)>
9645 aklass = array->vtable->klass->element_class;
9646 vklass = value->vtable->klass;
9648 if (vklass != aklass)
9652 *array_slot_addr = value;
9655 throw new ArrayTypeMismatchException ();
9657 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9658 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9659 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9662 /* ldelema (implicit bound check) */
9663 load_array_element_address (mb);
9664 mono_mb_emit_stloc (mb, array_slot_addr);
9666 /* if (!value) goto do_store */
9667 mono_mb_emit_ldarg (mb, 2);
9668 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9670 /* aklass = array->vtable->klass->element_class */
9671 load_array_class (mb, aklass);
9673 /* vklass = value->vtable->klass */
9674 load_value_class (mb, vklass);
9676 /*if (vklass != aklass) goto do_exception; */
9677 mono_mb_emit_ldloc (mb, aklass);
9678 mono_mb_emit_ldloc (mb, vklass);
9679 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9682 mono_mb_patch_branch (mb, b1);
9683 mono_mb_emit_ldloc (mb, array_slot_addr);
9684 mono_mb_emit_ldarg (mb, 2);
9685 mono_mb_emit_byte (mb, CEE_STIND_REF);
9686 mono_mb_emit_byte (mb, CEE_RET);
9689 mono_mb_patch_branch (mb, b2);
9690 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9693 case STELEMREF_CLASS:
9696 <ldelema (bound check)>
9700 aklass = array->vtable->klass->element_class;
9701 vklass = value->vtable->klass;
9703 if (vklass->idepth < aklass->idepth)
9706 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9710 *array_slot_addr = value;
9714 throw new ArrayTypeMismatchException ();
9716 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9717 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9718 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9720 /* ldelema (implicit bound check) */
9721 load_array_element_address (mb);
9722 mono_mb_emit_stloc (mb, array_slot_addr);
9724 /* if (!value) goto do_store */
9725 mono_mb_emit_ldarg (mb, 2);
9726 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9728 /* aklass = array->vtable->klass->element_class */
9729 load_array_class (mb, aklass);
9731 /* vklass = value->vtable->klass */
9732 load_value_class (mb, vklass);
9734 /*if (mono_object_isinst (value, aklass)) */
9735 mono_mb_emit_ldarg (mb, 2);
9736 mono_mb_emit_ldloc (mb, aklass);
9737 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9738 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9740 /* if (vklass->idepth < aklass->idepth) goto failue */
9741 mono_mb_emit_ldloc (mb, vklass);
9742 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9743 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9745 mono_mb_emit_ldloc (mb, aklass);
9746 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9747 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9749 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9751 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9752 mono_mb_emit_ldloc (mb, vklass);
9753 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9754 mono_mb_emit_byte (mb, CEE_LDIND_I);
9756 mono_mb_emit_ldloc (mb, aklass);
9757 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9758 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9759 mono_mb_emit_icon (mb, 1);
9760 mono_mb_emit_byte (mb, CEE_SUB);
9761 mono_mb_emit_icon (mb, sizeof (void*));
9762 mono_mb_emit_byte (mb, CEE_MUL);
9763 mono_mb_emit_byte (mb, CEE_ADD);
9764 mono_mb_emit_byte (mb, CEE_LDIND_I);
9766 mono_mb_emit_ldloc (mb, aklass);
9767 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9770 mono_mb_patch_branch (mb, b1);
9771 mono_mb_emit_ldloc (mb, array_slot_addr);
9772 mono_mb_emit_ldarg (mb, 2);
9773 mono_mb_emit_byte (mb, CEE_STIND_REF);
9774 mono_mb_emit_byte (mb, CEE_RET);
9777 mono_mb_patch_branch (mb, b2);
9778 mono_mb_patch_branch (mb, b3);
9780 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9783 case STELEMREF_INTERFACE:
9790 klass = array->obj.vtable->klass->element_class;
9792 uiid = klass->interface_id;
9793 if (uiid > vt->max_interface_id)
9795 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9798 mono_array_setref (array, index, value);
9801 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9803 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9804 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9805 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9806 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9808 /* ldelema (implicit bound check) */
9809 load_array_element_address (mb);
9810 mono_mb_emit_stloc (mb, array_slot_addr);
9812 /* if (!value) goto do_store */
9813 mono_mb_emit_ldarg (mb, 2);
9814 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9816 /* klass = array->vtable->klass->element_class */
9817 load_array_class (mb, aklass);
9819 /* vt = value->vtable */
9820 mono_mb_emit_ldarg (mb, 2);
9821 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9822 mono_mb_emit_byte (mb, CEE_LDIND_I);
9823 mono_mb_emit_stloc (mb, vtable);
9825 /* uiid = klass->interface_id; */
9826 mono_mb_emit_ldloc (mb, aklass);
9827 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9828 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9829 mono_mb_emit_stloc (mb, uiid);
9831 /*if (uiid > vt->max_interface_id)*/
9832 mono_mb_emit_ldloc (mb, uiid);
9833 mono_mb_emit_ldloc (mb, vtable);
9834 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9835 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9836 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9838 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9840 /*vt->interface_bitmap*/
9841 mono_mb_emit_ldloc (mb, vtable);
9842 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9843 mono_mb_emit_byte (mb, CEE_LDIND_I);
9846 mono_mb_emit_ldloc (mb, uiid);
9847 mono_mb_emit_icon (mb, 3);
9848 mono_mb_emit_byte (mb, CEE_SHR_UN);
9850 /*vt->interface_bitmap [(uiid) >> 3]*/
9851 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9852 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9854 /*(1 << ((uiid)&7)))*/
9855 mono_mb_emit_icon (mb, 1);
9856 mono_mb_emit_ldloc (mb, uiid);
9857 mono_mb_emit_icon (mb, 7);
9858 mono_mb_emit_byte (mb, CEE_AND);
9859 mono_mb_emit_byte (mb, CEE_SHL);
9861 /*bitwise and the whole thing*/
9862 mono_mb_emit_byte (mb, CEE_AND);
9863 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9866 mono_mb_patch_branch (mb, b1);
9867 mono_mb_emit_ldloc (mb, array_slot_addr);
9868 mono_mb_emit_ldarg (mb, 2);
9869 mono_mb_emit_byte (mb, CEE_STIND_REF);
9870 mono_mb_emit_byte (mb, CEE_RET);
9873 mono_mb_patch_branch (mb, b2);
9874 mono_mb_patch_branch (mb, b3);
9875 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9879 mono_mb_emit_ldarg (mb, 0);
9880 mono_mb_emit_ldarg (mb, 1);
9881 mono_mb_emit_ldarg (mb, 2);
9882 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9883 mono_mb_emit_byte (mb, CEE_RET);
9886 #endif /* DISABLE_JIT */
9887 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9888 info->d.virtual_stelemref.kind = kind;
9889 res = mono_mb_create (mb, signature, 4, info);
9890 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9892 mono_marshal_lock ();
9893 if (!cached_methods [kind]) {
9894 cached_methods [kind] = res;
9895 mono_marshal_unlock ();
9897 mono_marshal_unlock ();
9898 mono_free_method (res);
9902 return cached_methods [kind];
9906 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9910 g_assert (array_class->rank == 1);
9911 kind = get_virtual_stelemref_kind (array_class->element_class);
9913 return get_virtual_stelemref_wrapper (kind);
9917 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9922 *nwrappers = STELEMREF_KIND_COUNT;
9923 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9924 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9925 res [i] = get_virtual_stelemref_wrapper (i);
9930 * The wrapper info for the wrapper is a WrapperInfo structure.
9933 mono_marshal_get_stelemref (void)
9935 static MonoMethod* ret = NULL;
9936 MonoMethodSignature *sig;
9937 MonoMethodBuilder *mb;
9940 guint32 b1, b2, b3, b4;
9943 int array_slot_addr;
9948 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9951 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9953 /* void stelemref (void* array, int idx, void* value) */
9954 sig->ret = &mono_defaults.void_class->byval_arg;
9955 sig->params [0] = &mono_defaults.object_class->byval_arg;
9956 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9957 sig->params [2] = &mono_defaults.object_class->byval_arg;
9960 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9961 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9962 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9966 <ldelema (bound check)>
9970 aklass = array->vtable->klass->element_class;
9971 vklass = value->vtable->klass;
9973 if (vklass->idepth < aklass->idepth)
9976 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9980 *array_slot_addr = value;
9984 if (mono_object_isinst (value, aklass))
9987 throw new ArrayTypeMismatchException ();
9990 /* ldelema (implicit bound check) */
9991 mono_mb_emit_ldarg (mb, 0);
9992 mono_mb_emit_ldarg (mb, 1);
9993 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9994 mono_mb_emit_stloc (mb, array_slot_addr);
9996 /* if (!value) goto do_store */
9997 mono_mb_emit_ldarg (mb, 2);
9998 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10000 /* aklass = array->vtable->klass->element_class */
10001 mono_mb_emit_ldarg (mb, 0);
10002 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10003 mono_mb_emit_byte (mb, CEE_LDIND_I);
10004 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10005 mono_mb_emit_byte (mb, CEE_LDIND_I);
10006 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10007 mono_mb_emit_byte (mb, CEE_LDIND_I);
10008 mono_mb_emit_stloc (mb, aklass);
10010 /* vklass = value->vtable->klass */
10011 mono_mb_emit_ldarg (mb, 2);
10012 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10013 mono_mb_emit_byte (mb, CEE_LDIND_I);
10014 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10015 mono_mb_emit_byte (mb, CEE_LDIND_I);
10016 mono_mb_emit_stloc (mb, vklass);
10018 /* if (vklass->idepth < aklass->idepth) goto failue */
10019 mono_mb_emit_ldloc (mb, vklass);
10020 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10021 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10023 mono_mb_emit_ldloc (mb, aklass);
10024 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10025 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10027 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10029 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10030 mono_mb_emit_ldloc (mb, vklass);
10031 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10032 mono_mb_emit_byte (mb, CEE_LDIND_I);
10034 mono_mb_emit_ldloc (mb, aklass);
10035 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10036 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10037 mono_mb_emit_icon (mb, 1);
10038 mono_mb_emit_byte (mb, CEE_SUB);
10039 mono_mb_emit_icon (mb, sizeof (void*));
10040 mono_mb_emit_byte (mb, CEE_MUL);
10041 mono_mb_emit_byte (mb, CEE_ADD);
10042 mono_mb_emit_byte (mb, CEE_LDIND_I);
10044 mono_mb_emit_ldloc (mb, aklass);
10046 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10048 copy_pos = mono_mb_get_label (mb);
10050 mono_mb_patch_branch (mb, b1);
10051 mono_mb_emit_ldloc (mb, array_slot_addr);
10052 mono_mb_emit_ldarg (mb, 2);
10053 mono_mb_emit_byte (mb, CEE_STIND_REF);
10055 mono_mb_emit_byte (mb, CEE_RET);
10058 mono_mb_patch_branch (mb, b2);
10059 mono_mb_patch_branch (mb, b3);
10061 mono_mb_emit_ldarg (mb, 2);
10062 mono_mb_emit_ldloc (mb, aklass);
10063 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10065 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10066 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10067 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10069 mono_mb_emit_byte (mb, CEE_RET);
10071 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10072 ret = mono_mb_create (mb, sig, 4, info);
10079 * mono_marshal_get_gsharedvt_in_wrapper:
10081 * This wrapper handles calls from normal code to gsharedvt code.
10083 * The wrapper info for the wrapper is a WrapperInfo structure.
10086 mono_marshal_get_gsharedvt_in_wrapper (void)
10088 static MonoMethod* ret = NULL;
10089 MonoMethodSignature *sig;
10090 MonoMethodBuilder *mb;
10096 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10098 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10099 sig->ret = &mono_defaults.void_class->byval_arg;
10101 #ifndef DISABLE_JIT
10103 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10105 mono_mb_emit_byte (mb, CEE_RET);
10107 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10108 ret = mono_mb_create (mb, sig, 4, info);
10115 * mono_marshal_get_gsharedvt_out_wrapper:
10117 * This wrapper handles calls from gsharedvt code to normal code.
10119 * The wrapper info for the wrapper is a WrapperInfo structure.
10122 mono_marshal_get_gsharedvt_out_wrapper (void)
10124 static MonoMethod* ret = NULL;
10125 MonoMethodSignature *sig;
10126 MonoMethodBuilder *mb;
10132 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10134 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10135 sig->ret = &mono_defaults.void_class->byval_arg;
10137 #ifndef DISABLE_JIT
10139 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10141 mono_mb_emit_byte (mb, CEE_RET);
10143 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10144 ret = mono_mb_create (mb, sig, 4, info);
10153 MonoMethod *method;
10156 /* LOCKING: vars accessed under the marshal lock */
10157 static ArrayElemAddr *elem_addr_cache = NULL;
10158 static int elem_addr_cache_size = 0;
10159 static int elem_addr_cache_next = 0;
10162 * mono_marshal_get_array_address:
10163 * @rank: rank of the array type
10164 * @elem_size: size in bytes of an element of an array.
10166 * Returns a MonoMethod that implements the code to get the address
10167 * of an element in a multi-dimenasional array of @rank dimensions.
10168 * The returned method takes an array as the first argument and then
10169 * @rank indexes for the @rank dimensions.
10170 * If ELEM_SIZE is 0, read the array size from the array object.
10173 mono_marshal_get_array_address (int rank, int elem_size)
10176 MonoMethodBuilder *mb;
10177 MonoMethodSignature *sig;
10180 int i, bounds, ind, realidx;
10181 int branch_pos, *branch_positions;
10185 mono_marshal_lock ();
10186 for (i = 0; i < elem_addr_cache_next; ++i) {
10187 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10188 ret = elem_addr_cache [i].method;
10192 mono_marshal_unlock ();
10196 branch_positions = g_new0 (int, rank);
10198 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10200 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10201 sig->ret = &mono_defaults.int_class->byval_arg;
10202 sig->params [0] = &mono_defaults.object_class->byval_arg;
10203 for (i = 0; i < rank; ++i) {
10204 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10207 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10208 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10211 #ifndef DISABLE_JIT
10212 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10213 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10214 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10216 /* bounds = array->bounds; */
10217 mono_mb_emit_ldarg (mb, 0);
10218 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10219 mono_mb_emit_byte (mb, CEE_LDIND_I);
10220 mono_mb_emit_stloc (mb, bounds);
10222 /* ind is the overall element index, realidx is the partial index in a single dimension */
10223 /* ind = idx0 - bounds [0].lower_bound */
10224 mono_mb_emit_ldarg (mb, 1);
10225 mono_mb_emit_ldloc (mb, bounds);
10226 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10227 mono_mb_emit_byte (mb, CEE_ADD);
10228 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10229 mono_mb_emit_byte (mb, CEE_SUB);
10230 mono_mb_emit_stloc (mb, ind);
10231 /* if (ind >= bounds [0].length) goto exeception; */
10232 mono_mb_emit_ldloc (mb, ind);
10233 mono_mb_emit_ldloc (mb, bounds);
10234 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10235 mono_mb_emit_byte (mb, CEE_ADD);
10236 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10237 /* note that we use unsigned comparison */
10238 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10240 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10241 * We could also decide to ignore the passed elem_size and get it
10242 * from the array object, to reduce the number of methods we generate:
10243 * the additional cost is 3 memory loads and a non-immediate mul.
10245 for (i = 1; i < rank; ++i) {
10246 /* realidx = idxi - bounds [i].lower_bound */
10247 mono_mb_emit_ldarg (mb, 1 + i);
10248 mono_mb_emit_ldloc (mb, bounds);
10249 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10250 mono_mb_emit_byte (mb, CEE_ADD);
10251 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10252 mono_mb_emit_byte (mb, CEE_SUB);
10253 mono_mb_emit_stloc (mb, realidx);
10254 /* if (realidx >= bounds [i].length) goto exeception; */
10255 mono_mb_emit_ldloc (mb, realidx);
10256 mono_mb_emit_ldloc (mb, bounds);
10257 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10258 mono_mb_emit_byte (mb, CEE_ADD);
10259 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10260 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10261 /* ind = ind * bounds [i].length + realidx */
10262 mono_mb_emit_ldloc (mb, ind);
10263 mono_mb_emit_ldloc (mb, bounds);
10264 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10265 mono_mb_emit_byte (mb, CEE_ADD);
10266 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10267 mono_mb_emit_byte (mb, CEE_MUL);
10268 mono_mb_emit_ldloc (mb, realidx);
10269 mono_mb_emit_byte (mb, CEE_ADD);
10270 mono_mb_emit_stloc (mb, ind);
10273 /* return array->vector + ind * element_size */
10274 mono_mb_emit_ldarg (mb, 0);
10275 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10276 mono_mb_emit_ldloc (mb, ind);
10278 mono_mb_emit_icon (mb, elem_size);
10280 /* Load arr->vtable->klass->sizes.element_class */
10281 mono_mb_emit_ldarg (mb, 0);
10282 mono_mb_emit_byte (mb, CEE_CONV_I);
10283 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10284 mono_mb_emit_byte (mb, CEE_ADD);
10285 mono_mb_emit_byte (mb, CEE_LDIND_I);
10286 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10287 mono_mb_emit_byte (mb, CEE_ADD);
10288 mono_mb_emit_byte (mb, CEE_LDIND_I);
10289 /* sizes is an union, so this reads sizes.element_size */
10290 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10291 mono_mb_emit_byte (mb, CEE_ADD);
10292 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10294 mono_mb_emit_byte (mb, CEE_MUL);
10295 mono_mb_emit_byte (mb, CEE_ADD);
10296 mono_mb_emit_byte (mb, CEE_RET);
10298 /* patch the branches to get here and throw */
10299 for (i = 1; i < rank; ++i) {
10300 mono_mb_patch_branch (mb, branch_positions [i]);
10302 mono_mb_patch_branch (mb, branch_pos);
10303 /* throw exception */
10304 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10306 g_free (branch_positions);
10307 #endif /* DISABLE_JIT */
10309 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10310 info->d.element_addr.rank = rank;
10311 info->d.element_addr.elem_size = elem_size;
10312 ret = mono_mb_create (mb, sig, 4, info);
10315 /* cache the result */
10317 mono_marshal_lock ();
10318 for (i = 0; i < elem_addr_cache_next; ++i) {
10319 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10320 /* FIXME: free ret */
10321 ret = elem_addr_cache [i].method;
10327 if (elem_addr_cache_next >= elem_addr_cache_size) {
10328 int new_size = elem_addr_cache_size + 4;
10329 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10330 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10331 g_free (elem_addr_cache);
10332 elem_addr_cache = new_array;
10333 elem_addr_cache_size = new_size;
10335 elem_addr_cache [elem_addr_cache_next].rank = rank;
10336 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10337 elem_addr_cache [elem_addr_cache_next].method = ret;
10338 elem_addr_cache_next ++;
10340 mono_marshal_unlock ();
10345 * mono_marshal_get_array_accessor_wrapper:
10347 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10350 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10352 MonoMethodSignature *sig;
10353 MonoMethodBuilder *mb;
10357 MonoGenericContext *ctx = NULL;
10358 MonoMethod *orig_method = NULL;
10359 MonoGenericContainer *container = NULL;
10363 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10364 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10365 * FIXME: Use generic methods.
10372 g_assert_not_reached ();
10374 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10375 if ((res = mono_marshal_find_in_cache (cache, method)))
10379 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10382 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10384 #ifndef DISABLE_JIT
10385 /* Call the method */
10387 mono_mb_emit_ldarg (mb, 0);
10388 for (i = 0; i < sig->param_count; i++)
10389 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10393 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10394 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10396 mono_mb_emit_managed_call (mb, method, NULL);
10398 mono_mb_emit_byte (mb, CEE_RET);
10401 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10402 info->d.array_accessor.method = method;
10406 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10407 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10409 res = mono_mb_create_and_cache_full (cache, method,
10410 mb, sig, sig->param_count + 16,
10419 mono_marshal_alloc (gulong size, MonoError *error)
10423 mono_error_init (error);
10426 res = CoTaskMemAlloc (size);
10428 res = g_try_malloc ((gulong)size);
10430 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10435 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10437 ves_icall_marshal_alloc (gulong size)
10440 void *ret = mono_marshal_alloc (size, &error);
10441 if (!mono_error_ok (&error)) {
10442 mono_error_set_pending_exception (&error);
10450 mono_marshal_free (gpointer ptr)
10453 CoTaskMemFree (ptr);
10460 mono_marshal_free_array (gpointer *ptr, int size)
10467 for (i = 0; i < size; i++)
10473 mono_marshal_string_to_utf16 (MonoString *s)
10475 return s ? mono_string_chars (s) : NULL;
10478 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10480 mono_marshal_string_to_utf16_copy (MonoString *s)
10486 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10487 if (!mono_error_ok (&error)) {
10488 mono_error_set_pending_exception (&error);
10491 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10492 res [mono_string_length (s)] = 0;
10498 * mono_marshal_set_last_error:
10500 * This function is invoked to set the last error value from a P/Invoke call
10501 * which has SetLastError set.
10504 mono_marshal_set_last_error (void)
10507 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10509 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10514 mono_marshal_set_last_error_windows (int error)
10517 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10522 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10523 gpointer dest, gint32 length)
10528 MONO_CHECK_ARG_NULL (src,);
10529 MONO_CHECK_ARG_NULL (dest,);
10531 if (src->obj.vtable->klass->rank != 1) {
10532 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10535 if (start_index < 0) {
10536 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10540 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10543 if (start_index + length > mono_array_length (src)) {
10544 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10548 element_size = mono_array_element_size (src->obj.vtable->klass);
10550 /* no references should be involved */
10551 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10553 memcpy (dest, source_addr, length * element_size);
10557 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10558 MonoArray *dest, gint32 length)
10563 MONO_CHECK_ARG_NULL (src,);
10564 MONO_CHECK_ARG_NULL (dest,);
10566 if (dest->obj.vtable->klass->rank != 1) {
10567 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10570 if (start_index < 0) {
10571 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10575 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10578 if (start_index + length > mono_array_length (dest)) {
10579 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10582 element_size = mono_array_element_size (dest->obj.vtable->klass);
10584 /* no references should be involved */
10585 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10587 memcpy (dest_addr, src, length * element_size);
10591 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10596 return mono_string_new (mono_domain_get (), ptr);
10600 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10603 MonoString *result = NULL;
10604 mono_error_init (&error);
10606 mono_error_set_argument_null (&error, "ptr", "");
10608 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10609 mono_error_set_pending_exception (&error);
10614 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10617 MonoString *res = NULL;
10618 MonoDomain *domain = mono_domain_get ();
10628 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10629 if (!mono_error_ok (&error)) {
10630 mono_error_set_pending_exception (&error);
10637 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10640 MonoString *res = NULL;
10641 MonoDomain *domain = mono_domain_get ();
10643 mono_error_init (&error);
10647 mono_error_set_argument_null (&error, "ptr", "");
10649 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10652 if (!mono_error_ok (&error))
10653 mono_error_set_pending_exception (&error);
10658 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10660 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10664 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10670 MONO_CHECK_ARG_NULL (rtype, 0);
10672 type = rtype->type;
10673 klass = mono_class_from_mono_type (type);
10674 if (!mono_class_init (klass)) {
10675 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10679 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10681 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10682 return sizeof (gpointer);
10683 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10685 MonoException *exc;
10687 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10688 exc = mono_get_exception_argument ("t", msg);
10690 mono_set_pending_exception (exc);
10694 return mono_class_native_size (klass, NULL);
10698 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10701 MonoMethod *method;
10704 MONO_CHECK_ARG_NULL (obj,);
10705 MONO_CHECK_ARG_NULL (dst,);
10707 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10711 pa [2] = &delete_old;
10713 mono_runtime_invoke_checked (method, NULL, pa, &error);
10714 if (!mono_error_ok (&error))
10715 mono_error_set_pending_exception (&error);
10719 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10721 MonoMethod *method;
10724 mono_error_init (error);
10726 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10731 mono_runtime_invoke_checked (method, NULL, pa, error);
10735 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10740 MONO_CHECK_ARG_NULL (src,);
10741 MONO_CHECK_ARG_NULL (dst,);
10743 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10745 if (t->type == MONO_TYPE_VALUETYPE) {
10746 MonoException *exc;
10749 tmp = g_strdup_printf ("Destination is a boxed value type.");
10750 exc = mono_get_exception_argument ("dst", tmp);
10753 mono_set_pending_exception (exc);
10757 ptr_to_structure (src, dst, &error);
10758 if (!mono_error_ok (&error))
10759 mono_error_set_pending_exception (&error);
10763 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10767 MonoDomain *domain = mono_domain_get ();
10772 MONO_CHECK_ARG_NULL (type, NULL);
10774 klass = mono_class_from_mono_type (type->type);
10775 if (!mono_class_init (klass)) {
10776 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10780 res = mono_object_new_checked (domain, klass, &error);
10781 if (!mono_error_ok (&error)) {
10782 mono_error_set_pending_exception (&error);
10786 ptr_to_structure (src, res, &error);
10787 if (!mono_error_ok (&error)) {
10788 mono_error_set_pending_exception (&error);
10796 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10799 MonoMarshalType *info;
10802 int match_index = -1;
10804 MONO_CHECK_ARG_NULL (type, 0);
10805 MONO_CHECK_ARG_NULL (field_name, 0);
10807 fname = mono_string_to_utf8_checked (field_name, &error);
10808 if (mono_error_set_pending_exception (&error))
10810 klass = mono_class_from_mono_type (type->type);
10811 if (!mono_class_init (klass)) {
10812 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10816 while (klass && match_index == -1) {
10817 MonoClassField* field;
10819 gpointer iter = NULL;
10820 while ((field = mono_class_get_fields (klass, &iter))) {
10821 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10823 if (!strcmp (fname, mono_field_get_name (field))) {
10830 if (match_index == -1)
10831 klass = klass->parent;
10836 if(match_index == -1) {
10837 MonoException* exc;
10840 /* Get back original class instance */
10841 klass = mono_class_from_mono_type (type->type);
10843 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10844 exc = mono_get_exception_argument ("fieldName", tmp);
10847 mono_set_pending_exception ((MonoException*)exc);
10851 info = mono_marshal_load_type_info (klass);
10852 return info->fields [match_index].offset;
10856 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10862 tres = mono_string_to_utf8_checked (string, &error);
10863 if (mono_error_set_pending_exception (&error))
10868 len = strlen (tres) + 1;
10869 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10870 memcpy (ret, tres, len);
10875 char *ret = mono_string_to_utf8_checked (string, &error);
10876 mono_error_set_pending_exception (&error);
10882 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10884 if (string == NULL)
10887 #ifdef TARGET_WIN32
10888 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10889 ((mono_string_length (string) + 1) * 2);
10891 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10893 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10894 res [mono_string_length (string)] = 0;
10900 mono_struct_delete_old (MonoClass *klass, char *ptr)
10902 MonoMarshalType *info;
10905 info = mono_marshal_load_type_info (klass);
10907 for (i = 0; i < info->num_fields; i++) {
10908 MonoMarshalConv conv;
10909 MonoType *ftype = info->fields [i].field->type;
10912 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10915 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10916 klass->unicode, &conv);
10918 cpos = ptr + info->fields [i].offset;
10921 case MONO_MARSHAL_CONV_NONE:
10922 if (MONO_TYPE_ISSTRUCT (ftype)) {
10923 mono_struct_delete_old (ftype->data.klass, cpos);
10927 case MONO_MARSHAL_CONV_STR_LPWSTR:
10928 /* We assume this field points inside a MonoString */
10930 case MONO_MARSHAL_CONV_STR_LPTSTR:
10931 #ifdef TARGET_WIN32
10932 /* We assume this field points inside a MonoString
10936 case MONO_MARSHAL_CONV_STR_LPSTR:
10937 case MONO_MARSHAL_CONV_STR_BSTR:
10938 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10939 case MONO_MARSHAL_CONV_STR_TBSTR:
10940 mono_marshal_free (*(gpointer *)cpos);
10950 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10954 MONO_CHECK_ARG_NULL (src,);
10955 MONO_CHECK_ARG_NULL (type,);
10957 klass = mono_class_from_mono_type (type->type);
10958 if (!mono_class_init (klass)) {
10959 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10963 mono_struct_delete_old (klass, (char *)src);
10967 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10970 size_t s = (size_t)size;
10973 /* This returns a valid pointer for size 0 on MS.NET */
10977 res = GlobalAlloc (GMEM_FIXED, s);
10979 res = g_try_malloc (s);
10982 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10990 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10993 size_t s = (size_t)size;
10996 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11001 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
11003 res = g_try_realloc (ptr, s);
11006 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11014 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11024 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11029 res = CoTaskMemAlloc (size);
11031 if ((gulong)size == 0)
11032 /* This returns a valid pointer for size 0 on MS.NET */
11035 res = g_try_malloc ((gulong)size);
11038 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11045 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11048 CoTaskMemFree (ptr);
11055 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11060 res = CoTaskMemRealloc (ptr, size);
11062 res = g_try_realloc (ptr, (gulong)size);
11065 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11072 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11074 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11078 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11080 MonoClass *klass = mono_type_get_class (type->type);
11081 if (!mono_class_init (klass)) {
11082 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11086 return mono_ftnptr_to_delegate (klass, ftn);
11090 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11092 return mono_delegate_to_ftnptr (delegate);
11096 * mono_marshal_is_loading_type_info:
11098 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11102 mono_marshal_is_loading_type_info (MonoClass *klass)
11104 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11106 return g_slist_find (loads_list, klass) != NULL;
11110 * mono_marshal_load_type_info:
11112 * Initialize klass->marshal_info using information from metadata. This function can
11113 * recursively call itself, and the caller is responsible to avoid that by calling
11114 * mono_marshal_is_loading_type_info () beforehand.
11116 * LOCKING: Acquires the loader lock.
11119 mono_marshal_load_type_info (MonoClass* klass)
11122 guint32 native_size = 0, min_align = 1, packing;
11123 MonoMarshalType *info;
11124 MonoClassField* field;
11127 GSList *loads_list;
11129 g_assert (klass != NULL);
11131 if (klass->marshal_info)
11132 return klass->marshal_info;
11134 if (!klass->inited)
11135 mono_class_init (klass);
11137 if (klass->marshal_info)
11138 return klass->marshal_info;
11141 * This function can recursively call itself, so we keep the list of classes which are
11142 * under initialization in a TLS list.
11144 g_assert (!mono_marshal_is_loading_type_info (klass));
11145 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11146 loads_list = g_slist_prepend (loads_list, klass);
11147 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11150 while ((field = mono_class_get_fields (klass, &iter))) {
11151 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11153 if (mono_field_is_deleted (field))
11158 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11160 /* The mempool is protected by the loader lock */
11161 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11162 info->num_fields = count;
11164 /* Try to find a size for this type in metadata */
11165 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11167 if (klass->parent) {
11168 int parent_size = mono_class_native_size (klass->parent, NULL);
11170 /* Add parent size to real size */
11171 native_size += parent_size;
11172 info->native_size = parent_size;
11175 packing = klass->packing_size ? klass->packing_size : 8;
11178 while ((field = mono_class_get_fields (klass, &iter))) {
11182 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11185 if (mono_field_is_deleted (field))
11187 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11188 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11189 NULL, NULL, &info->fields [j].mspec);
11191 info->fields [j].field = field;
11193 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11194 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11195 /* This field is a hack inserted by MCS to empty structures */
11200 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11201 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11202 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11203 &align, TRUE, klass->unicode);
11204 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11205 min_align = MAX (align, min_align);
11206 info->fields [j].offset = info->native_size;
11207 info->fields [j].offset += align - 1;
11208 info->fields [j].offset &= ~(align - 1);
11209 info->native_size = info->fields [j].offset + size;
11211 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11212 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11213 &align, TRUE, klass->unicode);
11214 min_align = MAX (align, min_align);
11215 info->fields [j].offset = field->offset - sizeof (MonoObject);
11216 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11222 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11223 info->native_size = MAX (native_size, info->native_size);
11225 * If the provided Size is equal or larger than the calculated size, and there
11226 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11228 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11229 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11232 min_align = MIN (min_align, packing);
11236 if (info->native_size & (min_align - 1)) {
11237 info->native_size += min_align - 1;
11238 info->native_size &= ~(min_align - 1);
11241 info->min_align = min_align;
11243 /* Update the class's blittable info, if the layouts don't match */
11244 if (info->native_size != mono_class_value_size (klass, NULL))
11245 klass->blittable = FALSE;
11247 /* If this is an array type, ensure that we have element info */
11248 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11249 mono_marshal_load_type_info (klass->element_class);
11252 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11253 loads_list = g_slist_remove (loads_list, klass);
11254 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11256 mono_marshal_lock ();
11257 if (!klass->marshal_info) {
11258 /*We do double-checking locking on marshal_info */
11259 mono_memory_barrier ();
11260 klass->marshal_info = info;
11262 mono_marshal_unlock ();
11264 return klass->marshal_info;
11268 * mono_class_native_size:
11271 * Returns: the native size of an object instance (when marshaled
11272 * to unmanaged code)
11275 mono_class_native_size (MonoClass *klass, guint32 *align)
11277 if (!klass->marshal_info) {
11278 if (mono_marshal_is_loading_type_info (klass)) {
11283 mono_marshal_load_type_info (klass);
11288 *align = klass->marshal_info->min_align;
11290 return klass->marshal_info->native_size;
11294 * mono_type_native_stack_size:
11295 * @t: the type to return the size it uses on the stack
11297 * Returns: the number of bytes required to hold an instance of this
11298 * type on the native stack
11301 mono_type_native_stack_size (MonoType *t, guint32 *align)
11305 g_assert (t != NULL);
11311 *align = sizeof (gpointer);
11312 return sizeof (gpointer);
11316 case MONO_TYPE_BOOLEAN:
11317 case MONO_TYPE_CHAR:
11328 case MONO_TYPE_STRING:
11329 case MONO_TYPE_OBJECT:
11330 case MONO_TYPE_CLASS:
11331 case MONO_TYPE_SZARRAY:
11332 case MONO_TYPE_PTR:
11333 case MONO_TYPE_FNPTR:
11334 case MONO_TYPE_ARRAY:
11335 *align = sizeof (gpointer);
11336 return sizeof (gpointer);
11341 *align = MONO_ABI_ALIGNOF (double);
11345 *align = MONO_ABI_ALIGNOF (gint64);
11347 case MONO_TYPE_GENERICINST:
11348 if (!mono_type_generic_inst_is_valuetype (t)) {
11349 *align = sizeof (gpointer);
11350 return sizeof (gpointer);
11353 case MONO_TYPE_TYPEDBYREF:
11354 case MONO_TYPE_VALUETYPE: {
11356 MonoClass *klass = mono_class_from_mono_type (t);
11358 if (klass->enumtype)
11359 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11361 size = mono_class_native_size (klass, align);
11362 *align = *align + 3;
11372 g_error ("type 0x%02x unknown", t->type);
11378 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11379 gboolean as_field, gboolean unicode)
11381 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11384 switch (native_type) {
11385 case MONO_NATIVE_BOOLEAN:
11388 case MONO_NATIVE_I1:
11389 case MONO_NATIVE_U1:
11392 case MONO_NATIVE_I2:
11393 case MONO_NATIVE_U2:
11394 case MONO_NATIVE_VARIANTBOOL:
11397 case MONO_NATIVE_I4:
11398 case MONO_NATIVE_U4:
11399 case MONO_NATIVE_ERROR:
11402 case MONO_NATIVE_I8:
11403 case MONO_NATIVE_U8:
11404 *align = MONO_ABI_ALIGNOF (gint64);
11406 case MONO_NATIVE_R4:
11409 case MONO_NATIVE_R8:
11410 *align = MONO_ABI_ALIGNOF (double);
11412 case MONO_NATIVE_INT:
11413 case MONO_NATIVE_UINT:
11414 case MONO_NATIVE_LPSTR:
11415 case MONO_NATIVE_LPWSTR:
11416 case MONO_NATIVE_LPTSTR:
11417 case MONO_NATIVE_BSTR:
11418 case MONO_NATIVE_ANSIBSTR:
11419 case MONO_NATIVE_TBSTR:
11420 case MONO_NATIVE_LPARRAY:
11421 case MONO_NATIVE_SAFEARRAY:
11422 case MONO_NATIVE_IUNKNOWN:
11423 case MONO_NATIVE_IDISPATCH:
11424 case MONO_NATIVE_INTERFACE:
11425 case MONO_NATIVE_ASANY:
11426 case MONO_NATIVE_FUNC:
11427 case MONO_NATIVE_LPSTRUCT:
11428 *align = MONO_ABI_ALIGNOF (gpointer);
11429 return sizeof (gpointer);
11430 case MONO_NATIVE_STRUCT:
11431 klass = mono_class_from_mono_type (type);
11432 if (klass == mono_defaults.object_class &&
11433 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11437 return mono_class_native_size (klass, align);
11438 case MONO_NATIVE_BYVALTSTR: {
11439 int esize = unicode ? 2: 1;
11442 return mspec->data.array_data.num_elem * esize;
11444 case MONO_NATIVE_BYVALARRAY: {
11445 // FIXME: Have to consider ArraySubType
11447 klass = mono_class_from_mono_type (type);
11448 if (klass->element_class == mono_defaults.char_class) {
11449 esize = unicode ? 2 : 1;
11452 esize = mono_class_native_size (klass->element_class, align);
11455 return mspec->data.array_data.num_elem * esize;
11457 case MONO_NATIVE_CUSTOM:
11458 *align = sizeof (gpointer);
11459 return sizeof (gpointer);
11461 case MONO_NATIVE_CURRENCY:
11462 case MONO_NATIVE_VBBYREFSTR:
11464 g_error ("native type %02x not implemented", native_type);
11467 g_assert_not_reached ();
11471 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11473 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11482 t = &o->vtable->klass->byval_arg;
11486 case MONO_TYPE_PTR:
11489 case MONO_TYPE_BOOLEAN:
11492 case MONO_TYPE_CHAR:
11497 return mono_object_unbox (o);
11499 case MONO_TYPE_STRING:
11500 switch (string_encoding) {
11501 case MONO_NATIVE_LPWSTR:
11502 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11504 case MONO_NATIVE_LPSTR:
11505 return mono_string_to_lpstr ((MonoString*)o);
11508 g_warning ("marshaling conversion %d not implemented", string_encoding);
11509 g_assert_not_reached ();
11512 case MONO_TYPE_CLASS:
11513 case MONO_TYPE_VALUETYPE: {
11514 MonoMethod *method;
11517 MonoBoolean delete_old = FALSE;
11519 klass = t->data.klass;
11521 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11524 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11525 klass->blittable || klass->enumtype))
11526 return mono_object_unbox (o);
11528 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11529 if (!mono_error_ok (&error)) {
11530 mono_error_set_pending_exception (&error);
11534 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11535 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11539 pa [2] = &delete_old;
11541 mono_runtime_invoke_checked (method, NULL, pa, &error);
11542 if (!mono_error_ok (&error)) {
11543 mono_error_set_pending_exception (&error);
11553 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11557 /* This is a JIT icall, it sets the pending exception */
11559 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11568 t = &o->vtable->klass->byval_arg;
11570 case MONO_TYPE_STRING:
11571 switch (string_encoding) {
11572 case MONO_NATIVE_LPWSTR:
11573 case MONO_NATIVE_LPSTR:
11574 mono_marshal_free (ptr);
11577 g_warning ("marshaling conversion %d not implemented", string_encoding);
11578 g_assert_not_reached ();
11581 case MONO_TYPE_CLASS:
11582 case MONO_TYPE_VALUETYPE: {
11583 klass = t->data.klass;
11585 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11586 klass->blittable || klass->enumtype))
11589 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11590 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11596 mono_runtime_invoke_checked (method, NULL, pa, &error);
11597 if (!mono_error_ok (&error)) {
11598 mono_error_set_pending_exception (&error);
11603 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11604 mono_struct_delete_old (klass, (char *)ptr);
11607 mono_marshal_free (ptr);
11616 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11618 MonoMethodSignature *sig, *csig;
11619 MonoMethodBuilder *mb;
11624 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11625 mb->method->slot = -1;
11627 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11628 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11630 sig = mono_method_signature (method);
11631 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11632 csig->generic_param_count = 0;
11634 #ifndef DISABLE_JIT
11635 mono_mb_emit_ldarg (mb, 0);
11636 for (i = 0; i < csig->param_count; i++)
11637 mono_mb_emit_ldarg (mb, i + 1);
11638 mono_mb_emit_managed_call (mb, method, NULL);
11639 mono_mb_emit_byte (mb, CEE_RET);
11641 /* We can corlib internal methods */
11642 mb->skip_visibility = TRUE;
11644 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11645 info->d.generic_array_helper.method = method;
11646 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11654 * The mono_win32_compat_* functions are implementations of inline
11655 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11656 * although not exported by kernel32.
11658 * We map the appropiate kernel32 entries to these functions using
11659 * dllmaps declared in the global etc/mono/config.
11663 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11665 if (!dest || !source)
11668 memcpy (dest, source, length);
11672 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11674 memset (dest, fill, length);
11678 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11680 if (!dest || !source)
11683 memmove (dest, source, length);
11687 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11689 memset (dest, 0, length);
11693 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11698 for (i = 0; i < len; ++i)
11702 g_assert (i < len);
11705 while (byte && !(byte & 1))
11707 g_assert (byte == 1);
11710 *bitmask = buf [i];
11714 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11716 MonoMethodBuilder *mb;
11717 MonoMethodSignature *sig, *csig;
11718 MonoExceptionClause *clause;
11723 int i, param_count, sig_size, pos_leave;
11727 // FIXME: we need to store the exception into a MonoHandle
11728 g_assert (!mono_threads_is_coop_enabled ());
11730 klass = method->klass;
11731 image = method->klass->image;
11733 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11735 if ((res = mono_marshal_find_in_cache (cache, method)))
11738 sig = mono_method_signature (method);
11739 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11741 /* add "this" and exception param */
11742 param_count = sig->param_count + sig->hasthis + 1;
11744 /* dup & extend signature */
11745 csig = mono_metadata_signature_alloc (image, param_count);
11746 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11747 memcpy (csig, sig, sig_size);
11748 csig->param_count = param_count;
11751 csig->call_convention = MONO_CALL_DEFAULT;
11753 if (sig->hasthis) {
11755 csig->params [0] = &klass->byval_arg;
11756 /* move params up by one */
11757 for (i = 0; i < sig->param_count; i++)
11758 csig->params [i + 1] = sig->params [i];
11761 /* setup exception param as byref+[out] */
11762 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11763 &mono_defaults.exception_class->byval_arg);
11764 csig->params [param_count - 1]->byref = 1;
11765 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11767 /* convert struct return to object */
11768 if (MONO_TYPE_ISSTRUCT (sig->ret))
11769 csig->ret = &mono_defaults.object_class->byval_arg;
11771 #ifndef DISABLE_JIT
11772 /* local 0 (temp for exception object) */
11773 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11775 /* local 1 (temp for result) */
11776 if (!MONO_TYPE_IS_VOID (sig->ret))
11777 mono_mb_add_local (mb, sig->ret);
11779 /* clear exception arg */
11780 mono_mb_emit_ldarg (mb, param_count - 1);
11781 mono_mb_emit_byte (mb, CEE_LDNULL);
11782 mono_mb_emit_byte (mb, CEE_STIND_REF);
11785 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11786 clause->try_offset = mono_mb_get_label (mb);
11788 /* push method's args */
11789 for (i = 0; i < param_count - 1; i++) {
11793 mono_mb_emit_ldarg (mb, i);
11795 /* get the byval type of the param */
11796 klass = mono_class_from_mono_type (csig->params [i]);
11797 type = &klass->byval_arg;
11799 /* unbox struct args */
11800 if (MONO_TYPE_ISSTRUCT (type)) {
11801 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11803 /* byref args & and the "this" arg must remain a ptr.
11804 Otherwise make a copy of the value type */
11805 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11806 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11808 csig->params [i] = &mono_defaults.object_class->byval_arg;
11813 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11814 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11816 mono_mb_emit_op (mb, CEE_CALL, method);
11818 /* save result at local 1 */
11819 if (!MONO_TYPE_IS_VOID (sig->ret))
11820 mono_mb_emit_stloc (mb, 1);
11822 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11825 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11826 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11827 clause->data.catch_class = mono_defaults.object_class;
11829 clause->handler_offset = mono_mb_get_label (mb);
11831 /* store exception at local 0 */
11832 mono_mb_emit_stloc (mb, 0);
11833 mono_mb_emit_ldarg (mb, param_count - 1);
11834 mono_mb_emit_ldloc (mb, 0);
11835 mono_mb_emit_byte (mb, CEE_STIND_REF);
11836 mono_mb_emit_branch (mb, CEE_LEAVE);
11838 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11840 mono_mb_set_clauses (mb, 1, clause);
11842 mono_mb_patch_branch (mb, pos_leave);
11845 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11846 mono_mb_emit_ldloc (mb, 1);
11848 /* box the return value */
11849 if (MONO_TYPE_ISSTRUCT (sig->ret))
11850 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11853 mono_mb_emit_byte (mb, CEE_RET);
11856 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11863 * mono_marshal_free_dynamic_wrappers:
11865 * Free wrappers of the dynamic method METHOD.
11868 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11870 MonoImage *image = method->klass->image;
11872 g_assert (method_is_dynamic (method));
11874 /* This could be called during shutdown */
11875 if (marshal_mutex_initialized)
11876 mono_marshal_lock ();
11878 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11879 * they could be shared with other methods ?
11881 if (image->wrapper_caches.runtime_invoke_direct_cache)
11882 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11883 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11884 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11885 // FIXME: Need to clear the caches in other images as well
11886 if (image->delegate_bound_static_invoke_cache)
11887 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11889 if (marshal_mutex_initialized)
11890 mono_marshal_unlock ();
11894 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11896 g_assert (ftnptr_eh_callback);
11897 ftnptr_eh_callback (gchandle);
11901 ftnptr_eh_callback_default (guint32 gchandle)
11903 MonoException *exc;
11904 gpointer stackdata;
11906 g_assert (gchandle >= 0);
11908 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
11910 exc = (MonoException*) mono_gchandle_get_target (gchandle);
11912 mono_gchandle_free (gchandle);
11914 mono_raise_exception (exc);
11918 * mono_install_ftnptr_eh_callback:
11920 * Install a callback that should be called when there is a managed exception
11921 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
11922 * managed exception to a native exception, to properly unwind the native
11923 * stack; this native exception will then be converted back to a managed
11924 * exception in their managed-to-native wrapper.
11927 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
11929 ftnptr_eh_callback = callback;