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 g_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);
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)) {
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';
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 not be freed.
1018 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1021 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1028 g_assert (sb->chunkChars);
1030 guint len = mono_string_builder_capacity (sb);
1035 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1036 if (!mono_error_ok (&error)) {
1037 mono_error_set_pending_exception (&error);
1046 MonoStringBuilder* chunk = sb;
1048 if (chunk->chunkLength > 0) {
1049 // Check that we will not overrun our boundaries.
1050 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1052 if (chunk->chunkLength <= len) {
1053 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1055 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1058 len -= chunk->chunkLength;
1060 chunk = chunk->chunkPrevious;
1061 } while (chunk != NULL);
1066 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1068 mono_string_to_lpstr (MonoString *s)
1073 GError *error = NULL;
1079 as = CoTaskMemAlloc (1);
1084 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1086 MonoException *exc = mono_get_exception_argument ("string", error->message);
1087 g_error_free (error);
1088 mono_set_pending_exception (exc);
1091 as = CoTaskMemAlloc (len + 1);
1092 memcpy (as, tmp, len + 1);
1098 char *result = mono_string_to_utf8_checked (s, &error);
1099 mono_error_set_pending_exception (&error);
1105 mono_string_to_ansibstr (MonoString *string_obj)
1107 g_error ("UnmanagedMarshal.BStr is not implemented.");
1112 * mono_string_to_byvalstr:
1113 * @dst: Where to store the null-terminated utf8 decoded string.
1114 * @src: the MonoString to copy.
1115 * @size: the maximum number of bytes to copy.
1117 * Copies the MonoString pointed to by @src as a utf8 string
1118 * into @dst, it copies at most @size bytes into the destination.
1121 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1127 g_assert (dst != NULL);
1128 g_assert (size > 0);
1130 memset (dst, 0, size);
1134 s = mono_string_to_utf8_checked (src, &error);
1135 if (mono_error_set_pending_exception (&error))
1137 len = MIN (size, strlen (s));
1140 memcpy (dst, s, len);
1145 * mono_string_to_byvalwstr:
1146 * @dst: Where to store the null-terminated utf16 decoded string.
1147 * @src: the MonoString to copy.
1148 * @size: the maximum number of bytes to copy.
1150 * Copies the MonoString pointed to by @src as a utf16 string into
1151 * @dst, it copies at most @size bytes into the destination (including
1152 * a terminating 16-bit zero terminator).
1155 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1159 g_assert (dst != NULL);
1160 g_assert (size > 1);
1163 memset (dst, 0, size * 2);
1167 len = MIN (size, (mono_string_length (src)));
1168 memcpy (dst, mono_string_chars (src), size * 2);
1169 if (size <= mono_string_length (src))
1171 *((gunichar2 *) dst + len) = 0;
1174 /* this is an icall, it sets the pending exception and returns NULL on error */
1176 mono_string_new_len_wrapper (const char *text, guint length)
1179 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1180 mono_error_set_pending_exception (&error);
1187 * mono_mb_emit_exception_marshal_directive:
1189 * This function assumes ownership of MSG, which should be malloc-ed.
1192 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1197 s = mono_image_strdup (mb->method->klass->image, msg);
1202 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1205 #endif /* !DISABLE_JIT */
1208 mono_type_to_ldind (MonoType *type)
1214 switch (type->type) {
1216 return CEE_LDIND_I1;
1218 case MONO_TYPE_BOOLEAN:
1219 return CEE_LDIND_U1;
1221 return CEE_LDIND_I2;
1223 case MONO_TYPE_CHAR:
1224 return CEE_LDIND_U2;
1226 return CEE_LDIND_I4;
1228 return CEE_LDIND_U4;
1232 case MONO_TYPE_FNPTR:
1234 case MONO_TYPE_CLASS:
1235 case MONO_TYPE_STRING:
1236 case MONO_TYPE_OBJECT:
1237 case MONO_TYPE_SZARRAY:
1238 case MONO_TYPE_ARRAY:
1239 return CEE_LDIND_REF;
1242 return CEE_LDIND_I8;
1244 return CEE_LDIND_R4;
1246 return CEE_LDIND_R8;
1247 case MONO_TYPE_VALUETYPE:
1248 if (type->data.klass->enumtype) {
1249 type = mono_class_enum_basetype (type->data.klass);
1253 case MONO_TYPE_TYPEDBYREF:
1255 case MONO_TYPE_GENERICINST:
1256 type = &type->data.generic_class->container_class->byval_arg;
1259 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1265 mono_type_to_stind (MonoType *type)
1268 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1272 switch (type->type) {
1275 case MONO_TYPE_BOOLEAN:
1276 return CEE_STIND_I1;
1279 case MONO_TYPE_CHAR:
1280 return CEE_STIND_I2;
1283 return CEE_STIND_I4;
1287 case MONO_TYPE_FNPTR:
1289 case MONO_TYPE_CLASS:
1290 case MONO_TYPE_STRING:
1291 case MONO_TYPE_OBJECT:
1292 case MONO_TYPE_SZARRAY:
1293 case MONO_TYPE_ARRAY:
1294 return CEE_STIND_REF;
1297 return CEE_STIND_I8;
1299 return CEE_STIND_R4;
1301 return CEE_STIND_R8;
1302 case MONO_TYPE_VALUETYPE:
1303 if (type->data.klass->enumtype) {
1304 type = mono_class_enum_basetype (type->data.klass);
1308 case MONO_TYPE_TYPEDBYREF:
1310 case MONO_TYPE_GENERICINST:
1311 type = &type->data.generic_class->container_class->byval_arg;
1314 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1322 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1325 case MONO_MARSHAL_CONV_BOOL_I4:
1326 mono_mb_emit_ldloc (mb, 1);
1327 mono_mb_emit_ldloc (mb, 0);
1328 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1329 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1330 mono_mb_emit_byte (mb, 3);
1331 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1332 mono_mb_emit_byte (mb, CEE_BR_S);
1333 mono_mb_emit_byte (mb, 1);
1334 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1335 mono_mb_emit_byte (mb, CEE_STIND_I1);
1337 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1338 mono_mb_emit_ldloc (mb, 1);
1339 mono_mb_emit_ldloc (mb, 0);
1340 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1341 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1342 mono_mb_emit_byte (mb, 3);
1343 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1344 mono_mb_emit_byte (mb, CEE_BR_S);
1345 mono_mb_emit_byte (mb, 1);
1346 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1347 mono_mb_emit_byte (mb, CEE_STIND_I1);
1349 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1350 MonoClass *eklass = NULL;
1353 if (type->type == MONO_TYPE_SZARRAY) {
1354 eklass = type->data.klass;
1356 g_assert_not_reached ();
1359 esize = mono_class_native_size (eklass, NULL);
1361 /* create a new array */
1362 mono_mb_emit_ldloc (mb, 1);
1363 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1364 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1365 mono_mb_emit_byte (mb, CEE_STIND_REF);
1367 if (eklass->blittable) {
1368 /* copy the elements */
1369 mono_mb_emit_ldloc (mb, 1);
1370 mono_mb_emit_byte (mb, CEE_LDIND_I);
1371 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1372 mono_mb_emit_byte (mb, CEE_ADD);
1373 mono_mb_emit_ldloc (mb, 0);
1374 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1375 mono_mb_emit_byte (mb, CEE_PREFIX1);
1376 mono_mb_emit_byte (mb, CEE_CPBLK);
1379 int array_var, src_var, dst_var, index_var;
1380 guint32 label2, label3;
1382 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1383 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1384 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1387 mono_mb_emit_ldloc (mb, 1);
1388 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1389 mono_mb_emit_stloc (mb, array_var);
1391 /* save the old src pointer */
1392 mono_mb_emit_ldloc (mb, 0);
1393 mono_mb_emit_stloc (mb, src_var);
1394 /* save the old dst pointer */
1395 mono_mb_emit_ldloc (mb, 1);
1396 mono_mb_emit_stloc (mb, dst_var);
1398 /* Emit marshalling loop */
1399 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1400 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1401 mono_mb_emit_stloc (mb, index_var);
1404 label2 = mono_mb_get_label (mb);
1405 mono_mb_emit_ldloc (mb, index_var);
1406 mono_mb_emit_ldloc (mb, array_var);
1407 mono_mb_emit_byte (mb, CEE_LDLEN);
1408 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1410 /* src is already set */
1413 mono_mb_emit_ldloc (mb, array_var);
1414 mono_mb_emit_ldloc (mb, index_var);
1415 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1416 mono_mb_emit_stloc (mb, 1);
1418 /* Do the conversion */
1419 emit_struct_conv (mb, eklass, TRUE);
1422 mono_mb_emit_add_to_local (mb, index_var, 1);
1424 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1426 mono_mb_patch_branch (mb, label3);
1428 /* restore the old src pointer */
1429 mono_mb_emit_ldloc (mb, src_var);
1430 mono_mb_emit_stloc (mb, 0);
1431 /* restore the old dst pointer */
1432 mono_mb_emit_ldloc (mb, dst_var);
1433 mono_mb_emit_stloc (mb, 1);
1437 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1438 MonoClass *eclass = mono_defaults.char_class;
1440 /* create a new array */
1441 mono_mb_emit_ldloc (mb, 1);
1442 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1443 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1444 mono_mb_emit_byte (mb, CEE_STIND_REF);
1446 mono_mb_emit_ldloc (mb, 1);
1447 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1448 mono_mb_emit_ldloc (mb, 0);
1449 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1450 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1453 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1454 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1455 mono_mb_emit_ldloc (mb, 1);
1456 mono_mb_emit_ldloc (mb, 0);
1457 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1458 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1460 mono_mb_emit_ldloc (mb, 1);
1461 mono_mb_emit_ldloc (mb, 0);
1462 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1464 mono_mb_emit_byte (mb, CEE_STIND_REF);
1466 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1467 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1468 mono_mb_emit_ldloc (mb, 1);
1469 mono_mb_emit_ldloc (mb, 0);
1470 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1471 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1473 mono_mb_emit_ldloc (mb, 1);
1474 mono_mb_emit_ldloc (mb, 0);
1475 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1477 mono_mb_emit_byte (mb, CEE_STIND_REF);
1479 case MONO_MARSHAL_CONV_STR_LPTSTR:
1480 mono_mb_emit_ldloc (mb, 1);
1481 mono_mb_emit_ldloc (mb, 0);
1482 mono_mb_emit_byte (mb, CEE_LDIND_I);
1484 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1486 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1488 mono_mb_emit_byte (mb, CEE_STIND_REF);
1490 case MONO_MARSHAL_CONV_STR_LPSTR:
1491 mono_mb_emit_ldloc (mb, 1);
1492 mono_mb_emit_ldloc (mb, 0);
1493 mono_mb_emit_byte (mb, CEE_LDIND_I);
1494 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1495 mono_mb_emit_byte (mb, CEE_STIND_REF);
1497 case MONO_MARSHAL_CONV_STR_LPWSTR:
1498 mono_mb_emit_ldloc (mb, 1);
1499 mono_mb_emit_ldloc (mb, 0);
1500 mono_mb_emit_byte (mb, CEE_LDIND_I);
1501 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1502 mono_mb_emit_byte (mb, CEE_STIND_REF);
1504 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1505 MonoClass *klass = mono_class_from_mono_type (type);
1506 int src_var, dst_var;
1508 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1509 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1511 /* *dst = new object */
1512 mono_mb_emit_ldloc (mb, 1);
1513 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1514 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1515 mono_mb_emit_byte (mb, CEE_STIND_REF);
1517 /* save the old src pointer */
1518 mono_mb_emit_ldloc (mb, 0);
1519 mono_mb_emit_stloc (mb, src_var);
1520 /* save the old dst pointer */
1521 mono_mb_emit_ldloc (mb, 1);
1522 mono_mb_emit_stloc (mb, dst_var);
1524 /* dst = pointer to newly created object data */
1525 mono_mb_emit_ldloc (mb, 1);
1526 mono_mb_emit_byte (mb, CEE_LDIND_I);
1527 mono_mb_emit_icon (mb, sizeof (MonoObject));
1528 mono_mb_emit_byte (mb, CEE_ADD);
1529 mono_mb_emit_stloc (mb, 1);
1531 emit_struct_conv (mb, klass, TRUE);
1533 /* restore the old src pointer */
1534 mono_mb_emit_ldloc (mb, src_var);
1535 mono_mb_emit_stloc (mb, 0);
1536 /* restore the old dst pointer */
1537 mono_mb_emit_ldloc (mb, dst_var);
1538 mono_mb_emit_stloc (mb, 1);
1541 case MONO_MARSHAL_CONV_DEL_FTN: {
1542 MonoClass *klass = mono_class_from_mono_type (type);
1544 mono_mb_emit_ldloc (mb, 1);
1545 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1546 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1547 mono_mb_emit_ldloc (mb, 0);
1548 mono_mb_emit_byte (mb, CEE_LDIND_I);
1549 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1550 mono_mb_emit_byte (mb, CEE_STIND_REF);
1553 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1554 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1558 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1559 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1560 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1561 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1563 #endif /* DISABLE_COM */
1565 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1567 * Passing SafeHandles as ref does not allow the unmanaged code
1568 * to change the SafeHandle value. If the value is changed,
1569 * we should issue a diagnostic exception (NotSupportedException)
1570 * that informs the user that changes to handles in unmanaged code
1573 * Since we currently have no access to the original
1574 * SafeHandle that was used during the marshalling,
1575 * for now we just ignore this, and ignore/discard any
1576 * changes that might have happened to the handle.
1581 case MONO_MARSHAL_CONV_HANDLEREF: {
1583 * Passing HandleRefs in a struct that is ref()ed does not
1584 * copy the values back to the HandleRef
1589 case MONO_MARSHAL_CONV_STR_BSTR:
1590 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1591 case MONO_MARSHAL_CONV_STR_TBSTR:
1592 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1594 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1596 mono_mb_emit_exception_marshal_directive (mb, msg);
1603 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1606 if (!ind_store_type)
1607 ind_store_type = &dummy;
1608 *ind_store_type = CEE_STIND_I;
1610 case MONO_MARSHAL_CONV_STR_LPWSTR:
1611 return mono_marshal_string_to_utf16;
1612 case MONO_MARSHAL_CONV_LPWSTR_STR:
1613 *ind_store_type = CEE_STIND_REF;
1614 return ves_icall_mono_string_from_utf16;
1615 case MONO_MARSHAL_CONV_LPTSTR_STR:
1616 *ind_store_type = CEE_STIND_REF;
1617 return mono_string_new_wrapper;
1618 case MONO_MARSHAL_CONV_LPSTR_STR:
1619 *ind_store_type = CEE_STIND_REF;
1620 return mono_string_new_wrapper;
1621 case MONO_MARSHAL_CONV_STR_LPTSTR:
1623 return mono_marshal_string_to_utf16;
1625 return mono_string_to_lpstr;
1627 case MONO_MARSHAL_CONV_STR_LPSTR:
1628 return mono_string_to_lpstr;
1629 case MONO_MARSHAL_CONV_STR_BSTR:
1630 return mono_string_to_bstr;
1631 case MONO_MARSHAL_CONV_BSTR_STR:
1632 *ind_store_type = CEE_STIND_REF;
1633 return mono_string_from_bstr_icall;
1634 case MONO_MARSHAL_CONV_STR_TBSTR:
1635 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1636 return mono_string_to_ansibstr;
1637 case MONO_MARSHAL_CONV_SB_LPSTR:
1638 return mono_string_builder_to_utf8;
1639 case MONO_MARSHAL_CONV_SB_LPTSTR:
1641 return mono_string_builder_to_utf16;
1643 return mono_string_builder_to_utf8;
1645 case MONO_MARSHAL_CONV_SB_LPWSTR:
1646 return mono_string_builder_to_utf16;
1647 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1648 return mono_array_to_savearray;
1649 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1650 return mono_array_to_lparray;
1651 case MONO_MARSHAL_FREE_LPARRAY:
1652 return mono_free_lparray;
1653 case MONO_MARSHAL_CONV_DEL_FTN:
1654 return mono_delegate_to_ftnptr;
1655 case MONO_MARSHAL_CONV_FTN_DEL:
1656 *ind_store_type = CEE_STIND_REF;
1657 return mono_ftnptr_to_delegate;
1658 case MONO_MARSHAL_CONV_LPSTR_SB:
1659 *ind_store_type = CEE_STIND_REF;
1660 return mono_string_utf8_to_builder;
1661 case MONO_MARSHAL_CONV_LPTSTR_SB:
1662 *ind_store_type = CEE_STIND_REF;
1664 return mono_string_utf16_to_builder;
1666 return mono_string_utf8_to_builder;
1668 case MONO_MARSHAL_CONV_LPWSTR_SB:
1669 *ind_store_type = CEE_STIND_REF;
1670 return mono_string_utf16_to_builder;
1671 case MONO_MARSHAL_FREE_ARRAY:
1672 return mono_marshal_free_array;
1673 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1674 return mono_string_to_byvalstr;
1675 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1676 return mono_string_to_byvalwstr;
1678 g_assert_not_reached ();
1685 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1691 case MONO_MARSHAL_CONV_BOOL_I4:
1692 mono_mb_emit_ldloc (mb, 1);
1693 mono_mb_emit_ldloc (mb, 0);
1694 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1695 mono_mb_emit_byte (mb, CEE_STIND_I4);
1697 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1698 mono_mb_emit_ldloc (mb, 1);
1699 mono_mb_emit_ldloc (mb, 0);
1700 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1701 mono_mb_emit_byte (mb, CEE_NEG);
1702 mono_mb_emit_byte (mb, CEE_STIND_I2);
1704 case MONO_MARSHAL_CONV_STR_LPWSTR:
1705 case MONO_MARSHAL_CONV_STR_LPSTR:
1706 case MONO_MARSHAL_CONV_STR_LPTSTR:
1707 case MONO_MARSHAL_CONV_STR_BSTR:
1708 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1709 case MONO_MARSHAL_CONV_STR_TBSTR: {
1712 /* free space if free == true */
1713 mono_mb_emit_ldloc (mb, 2);
1714 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1715 mono_mb_emit_ldloc (mb, 1);
1716 mono_mb_emit_byte (mb, CEE_LDIND_I);
1717 mono_mb_emit_icall (mb, g_free);
1718 mono_mb_patch_short_branch (mb, pos);
1720 mono_mb_emit_ldloc (mb, 1);
1721 mono_mb_emit_ldloc (mb, 0);
1722 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1723 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1724 mono_mb_emit_byte (mb, stind_op);
1727 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1728 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1729 case MONO_MARSHAL_CONV_DEL_FTN:
1730 mono_mb_emit_ldloc (mb, 1);
1731 mono_mb_emit_ldloc (mb, 0);
1732 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1733 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1734 mono_mb_emit_byte (mb, stind_op);
1736 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1737 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1740 mono_mb_emit_ldloc (mb, 1); /* dst */
1741 mono_mb_emit_ldloc (mb, 0);
1742 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1743 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1744 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1747 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1748 MonoClass *eklass = NULL;
1751 if (type->type == MONO_TYPE_SZARRAY) {
1752 eklass = type->data.klass;
1754 g_assert_not_reached ();
1757 if (eklass->valuetype)
1758 esize = mono_class_native_size (eklass, NULL);
1760 esize = sizeof (gpointer);
1762 mono_mb_emit_ldloc (mb, 0);
1763 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1764 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1766 if (eklass->blittable) {
1767 mono_mb_emit_ldloc (mb, 1);
1768 mono_mb_emit_ldloc (mb, 0);
1769 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1770 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1771 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1772 mono_mb_emit_byte (mb, CEE_PREFIX1);
1773 mono_mb_emit_byte (mb, CEE_CPBLK);
1775 int array_var, src_var, dst_var, index_var;
1776 guint32 label2, label3;
1778 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1779 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1780 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1783 mono_mb_emit_ldloc (mb, 0);
1784 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1785 mono_mb_emit_stloc (mb, array_var);
1787 /* save the old src pointer */
1788 mono_mb_emit_ldloc (mb, 0);
1789 mono_mb_emit_stloc (mb, src_var);
1790 /* save the old dst pointer */
1791 mono_mb_emit_ldloc (mb, 1);
1792 mono_mb_emit_stloc (mb, dst_var);
1794 /* Emit marshalling loop */
1795 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1796 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1797 mono_mb_emit_stloc (mb, index_var);
1800 label2 = mono_mb_get_label (mb);
1801 mono_mb_emit_ldloc (mb, index_var);
1802 mono_mb_emit_ldloc (mb, array_var);
1803 mono_mb_emit_byte (mb, CEE_LDLEN);
1804 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1807 mono_mb_emit_ldloc (mb, array_var);
1808 mono_mb_emit_ldloc (mb, index_var);
1809 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1810 mono_mb_emit_stloc (mb, 0);
1812 /* dst is already set */
1814 /* Do the conversion */
1815 emit_struct_conv (mb, eklass, FALSE);
1818 mono_mb_emit_add_to_local (mb, index_var, 1);
1820 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1822 mono_mb_patch_branch (mb, label3);
1824 /* restore the old src pointer */
1825 mono_mb_emit_ldloc (mb, src_var);
1826 mono_mb_emit_stloc (mb, 0);
1827 /* restore the old dst pointer */
1828 mono_mb_emit_ldloc (mb, dst_var);
1829 mono_mb_emit_stloc (mb, 1);
1832 mono_mb_patch_branch (mb, pos);
1835 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1836 mono_mb_emit_ldloc (mb, 0);
1837 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1838 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1840 mono_mb_emit_ldloc (mb, 1);
1841 mono_mb_emit_ldloc (mb, 0);
1842 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1843 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1844 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1845 mono_mb_patch_short_branch (mb, pos);
1848 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1849 int src_var, dst_var;
1851 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1852 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1854 mono_mb_emit_ldloc (mb, 0);
1855 mono_mb_emit_byte (mb, CEE_LDIND_I);
1856 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1858 /* save the old src pointer */
1859 mono_mb_emit_ldloc (mb, 0);
1860 mono_mb_emit_stloc (mb, src_var);
1861 /* save the old dst pointer */
1862 mono_mb_emit_ldloc (mb, 1);
1863 mono_mb_emit_stloc (mb, dst_var);
1865 /* src = pointer to object data */
1866 mono_mb_emit_ldloc (mb, 0);
1867 mono_mb_emit_byte (mb, CEE_LDIND_I);
1868 mono_mb_emit_icon (mb, sizeof (MonoObject));
1869 mono_mb_emit_byte (mb, CEE_ADD);
1870 mono_mb_emit_stloc (mb, 0);
1872 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1874 /* restore the old src pointer */
1875 mono_mb_emit_ldloc (mb, src_var);
1876 mono_mb_emit_stloc (mb, 0);
1877 /* restore the old dst pointer */
1878 mono_mb_emit_ldloc (mb, dst_var);
1879 mono_mb_emit_stloc (mb, 1);
1881 mono_mb_patch_branch (mb, pos);
1886 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1887 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1888 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1889 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1891 #endif /* DISABLE_COM */
1893 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1896 mono_mb_emit_ldloc (mb, 0);
1897 mono_mb_emit_byte (mb, CEE_LDIND_I);
1898 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1899 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1900 mono_mb_patch_branch (mb, pos);
1902 /* Pull the handle field from SafeHandle */
1903 mono_mb_emit_ldloc (mb, 1);
1904 mono_mb_emit_ldloc (mb, 0);
1905 mono_mb_emit_byte (mb, CEE_LDIND_I);
1906 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1907 mono_mb_emit_byte (mb, CEE_LDIND_I);
1908 mono_mb_emit_byte (mb, CEE_STIND_I);
1912 case MONO_MARSHAL_CONV_HANDLEREF: {
1913 mono_mb_emit_ldloc (mb, 1);
1914 mono_mb_emit_ldloc (mb, 0);
1915 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1916 mono_mb_emit_byte (mb, CEE_ADD);
1917 mono_mb_emit_byte (mb, CEE_LDIND_I);
1918 mono_mb_emit_byte (mb, CEE_STIND_I);
1923 g_error ("marshalling conversion %d not implemented", conv);
1929 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1930 MonoMarshalNative string_encoding)
1932 MonoMarshalType *info;
1936 emit_struct_conv(mb, klass->parent, to_object);
1938 info = mono_marshal_load_type_info (klass);
1940 if (info->native_size == 0)
1943 if (klass->blittable) {
1944 int msize = mono_class_value_size (klass, NULL);
1945 g_assert (msize == info->native_size);
1946 mono_mb_emit_ldloc (mb, 1);
1947 mono_mb_emit_ldloc (mb, 0);
1948 mono_mb_emit_icon (mb, msize);
1949 mono_mb_emit_byte (mb, CEE_PREFIX1);
1950 mono_mb_emit_byte (mb, CEE_CPBLK);
1952 mono_mb_emit_add_to_local (mb, 0, msize);
1953 mono_mb_emit_add_to_local (mb, 1, msize);
1957 if (klass != mono_class_try_get_safehandle_class ()) {
1958 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1959 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1960 mono_type_full_name (&klass->byval_arg));
1961 mono_mb_emit_exception_marshal_directive (mb, msg);
1966 for (i = 0; i < info->num_fields; i++) {
1967 MonoMarshalNative ntype;
1968 MonoMarshalConv conv;
1969 MonoType *ftype = info->fields [i].field->type;
1972 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1974 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1977 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1980 msize = klass->instance_size - info->fields [i].field->offset;
1981 usize = info->native_size - info->fields [i].offset;
1983 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1984 usize = info->fields [i + 1].offset - info->fields [i].offset;
1987 if (klass != mono_class_try_get_safehandle_class ()){
1989 * FIXME: Should really check for usize==0 and msize>0, but we apply
1990 * the layout to the managed structure as well.
1993 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1994 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1995 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1996 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1997 "reference field at the same offset as another field.",
1998 mono_type_full_name (&klass->byval_arg));
2003 case MONO_MARSHAL_CONV_NONE: {
2006 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2007 g_assert (!ftype->byref);
2008 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2009 mono_mb_emit_ldloc (mb, 1);
2010 mono_mb_emit_ldloc (mb, 0);
2011 mono_mb_emit_byte (mb, CEE_LDIND_I);
2012 mono_mb_emit_byte (mb, CEE_STIND_I);
2023 case MONO_TYPE_BOOLEAN:
2026 case MONO_TYPE_CHAR:
2032 mono_mb_emit_ldloc (mb, 1);
2033 mono_mb_emit_ldloc (mb, 0);
2034 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2036 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2037 mono_mb_emit_byte (mb, CEE_STIND_I2);
2039 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2040 mono_mb_emit_byte (mb, CEE_STIND_I1);
2043 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2044 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2047 case MONO_TYPE_VALUETYPE: {
2048 int src_var, dst_var;
2050 if (ftype->data.klass->enumtype) {
2051 ftype = mono_class_enum_basetype (ftype->data.klass);
2055 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2056 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2058 /* save the old src pointer */
2059 mono_mb_emit_ldloc (mb, 0);
2060 mono_mb_emit_stloc (mb, src_var);
2061 /* save the old dst pointer */
2062 mono_mb_emit_ldloc (mb, 1);
2063 mono_mb_emit_stloc (mb, dst_var);
2065 emit_struct_conv (mb, ftype->data.klass, to_object);
2067 /* restore the old src pointer */
2068 mono_mb_emit_ldloc (mb, src_var);
2069 mono_mb_emit_stloc (mb, 0);
2070 /* restore the old dst pointer */
2071 mono_mb_emit_ldloc (mb, dst_var);
2072 mono_mb_emit_stloc (mb, 1);
2075 case MONO_TYPE_OBJECT: {
2078 static MonoMethod *variant_clear = NULL;
2079 static MonoMethod *get_object_for_native_variant = NULL;
2082 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2083 if (!get_object_for_native_variant)
2084 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2085 mono_mb_emit_ldloc (mb, 1);
2086 mono_mb_emit_ldloc (mb, 0);
2087 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2088 mono_mb_emit_byte (mb, CEE_STIND_REF);
2090 mono_mb_emit_ldloc (mb, 0);
2091 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2094 static MonoMethod *get_native_variant_for_object = NULL;
2096 if (!get_native_variant_for_object)
2097 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2099 mono_mb_emit_ldloc (mb, 0);
2100 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2101 mono_mb_emit_ldloc (mb, 1);
2102 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2105 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2106 mono_mb_emit_exception_marshal_directive (mb, msg);
2112 g_warning ("marshaling type %02x not implemented", ftype->type);
2113 g_assert_not_reached ();
2118 int src_var, dst_var;
2120 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2121 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2123 /* save the old src pointer */
2124 mono_mb_emit_ldloc (mb, 0);
2125 mono_mb_emit_stloc (mb, src_var);
2126 /* save the old dst pointer */
2127 mono_mb_emit_ldloc (mb, 1);
2128 mono_mb_emit_stloc (mb, dst_var);
2131 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2133 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2135 /* restore the old src pointer */
2136 mono_mb_emit_ldloc (mb, src_var);
2137 mono_mb_emit_stloc (mb, 0);
2138 /* restore the old dst pointer */
2139 mono_mb_emit_ldloc (mb, dst_var);
2140 mono_mb_emit_stloc (mb, 1);
2145 mono_mb_emit_add_to_local (mb, 0, usize);
2146 mono_mb_emit_add_to_local (mb, 1, msize);
2148 mono_mb_emit_add_to_local (mb, 0, msize);
2149 mono_mb_emit_add_to_local (mb, 1, usize);
2155 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2157 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2161 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2163 /* Call DestroyStructure */
2164 /* FIXME: Only do this if needed */
2165 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2166 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2167 mono_mb_emit_ldloc (mb, struct_var);
2168 mono_mb_emit_icall (mb, mono_struct_delete_old);
2172 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2174 int pos_noabort, pos_noex;
2176 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2177 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2178 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2179 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2181 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2182 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2184 mono_mb_emit_icall (mb, checkpoint_func);
2185 /* Throw the exception returned by the checkpoint function, if any */
2186 mono_mb_emit_byte (mb, CEE_DUP);
2187 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2188 mono_mb_emit_byte (mb, CEE_THROW);
2189 mono_mb_patch_branch (mb, pos_noex);
2190 mono_mb_emit_byte (mb, CEE_POP);
2192 mono_mb_patch_branch (mb, pos_noabort);
2196 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2198 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2201 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2205 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2207 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2211 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2213 emit_thread_interrupt_checkpoint (mb);
2217 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2219 emit_thread_force_interrupt_checkpoint (mb);
2222 #endif /* DISABLE_JIT */
2224 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2225 static MonoAsyncResult *
2226 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2229 MonoMulticastDelegate *mcast_delegate;
2233 g_assert (delegate);
2234 mcast_delegate = (MonoMulticastDelegate *) delegate;
2235 if (mcast_delegate->delegates != NULL) {
2236 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2240 #ifndef DISABLE_REMOTING
2241 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2242 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2243 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2244 /* If the target is a proxy, make a direct call. Is proxy's work
2245 // to make the call asynchronous.
2247 MonoMethodMessage *msg;
2248 MonoDelegate *async_callback;
2250 MonoAsyncResult *ares;
2252 MonoArray *out_args;
2253 method = delegate->method;
2255 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2256 if (mono_error_set_pending_exception (&error))
2258 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2259 if (mono_error_set_pending_exception (&error))
2261 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2262 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2263 MONO_OBJECT_SETREF (msg, async_result, ares);
2264 msg->call_type = CallType_BeginInvoke;
2267 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2268 if (!mono_error_ok (&error)) {
2269 mono_error_set_pending_exception (&error);
2273 mono_set_pending_exception ((MonoException *) exc);
2279 klass = delegate->object.vtable->klass;
2281 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2283 method = mono_get_delegate_invoke (klass);
2286 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2287 mono_error_set_pending_exception (&error);
2294 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2296 int i, params_var, tmp_var;
2298 /* allocate local (pointer) *params[] */
2299 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2300 /* allocate local (pointer) tmp */
2301 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2303 /* alloate space on stack to store an array of pointers to the arguments */
2304 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2305 mono_mb_emit_byte (mb, CEE_PREFIX1);
2306 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2307 mono_mb_emit_stloc (mb, params_var);
2310 mono_mb_emit_ldloc (mb, params_var);
2311 mono_mb_emit_stloc (mb, tmp_var);
2313 if (save_this && sig->hasthis) {
2314 mono_mb_emit_ldloc (mb, tmp_var);
2315 mono_mb_emit_ldarg_addr (mb, 0);
2316 mono_mb_emit_byte (mb, CEE_STIND_I);
2317 /* tmp = tmp + sizeof (gpointer) */
2318 if (sig->param_count)
2319 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2323 for (i = 0; i < sig->param_count; i++) {
2324 mono_mb_emit_ldloc (mb, tmp_var);
2325 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2326 mono_mb_emit_byte (mb, CEE_STIND_I);
2327 /* tmp = tmp + sizeof (gpointer) */
2328 if (i < (sig->param_count - 1))
2329 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2335 #endif /* DISABLE_JIT */
2338 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2342 GString *res = g_string_new ("");
2345 g_string_append (res, prefix);
2346 g_string_append_c (res, '_');
2349 mono_type_get_desc (res, sig->ret, FALSE);
2352 g_string_append (res, "__this__");
2354 for (i = 0; i < sig->param_count; ++i) {
2355 g_string_append_c (res, '_');
2356 mono_type_get_desc (res, sig->params [i], FALSE);
2359 g_string_free (res, FALSE);
2364 * mono_marshal_get_string_encoding:
2366 * Return the string encoding which should be used for a given parameter.
2368 static MonoMarshalNative
2369 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2371 /* First try the parameter marshal info */
2373 if (spec->native == MONO_NATIVE_LPARRAY) {
2374 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2375 return spec->data.array_data.elem_type;
2378 return spec->native;
2382 return MONO_NATIVE_LPSTR;
2384 /* Then try the method level marshal info */
2385 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2386 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2387 return MONO_NATIVE_LPSTR;
2388 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2389 return MONO_NATIVE_LPWSTR;
2390 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2392 return MONO_NATIVE_LPWSTR;
2394 return MONO_NATIVE_LPSTR;
2397 return MONO_NATIVE_LPSTR;
2401 static MonoMarshalConv
2402 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2404 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2407 case MONO_NATIVE_LPWSTR:
2408 return MONO_MARSHAL_CONV_STR_LPWSTR;
2409 case MONO_NATIVE_LPSTR:
2410 case MONO_NATIVE_VBBYREFSTR:
2411 return MONO_MARSHAL_CONV_STR_LPSTR;
2412 case MONO_NATIVE_LPTSTR:
2413 return MONO_MARSHAL_CONV_STR_LPTSTR;
2414 case MONO_NATIVE_BSTR:
2415 return MONO_MARSHAL_CONV_STR_BSTR;
2417 return MONO_MARSHAL_CONV_INVALID;
2421 static MonoMarshalConv
2422 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2424 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2427 case MONO_NATIVE_LPWSTR:
2428 return MONO_MARSHAL_CONV_SB_LPWSTR;
2430 case MONO_NATIVE_LPSTR:
2431 return MONO_MARSHAL_CONV_SB_LPSTR;
2433 case MONO_NATIVE_LPTSTR:
2434 return MONO_MARSHAL_CONV_SB_LPTSTR;
2437 return MONO_MARSHAL_CONV_INVALID;
2441 static MonoMarshalConv
2442 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2444 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2449 case MONO_NATIVE_LPWSTR:
2451 return MONO_MARSHAL_CONV_LPWSTR_STR;
2452 case MONO_NATIVE_LPSTR:
2453 case MONO_NATIVE_VBBYREFSTR:
2454 return MONO_MARSHAL_CONV_LPSTR_STR;
2455 case MONO_NATIVE_LPTSTR:
2456 return MONO_MARSHAL_CONV_LPTSTR_STR;
2457 case MONO_NATIVE_BSTR:
2458 return MONO_MARSHAL_CONV_BSTR_STR;
2460 return MONO_MARSHAL_CONV_INVALID;
2464 static MonoMarshalConv
2465 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2467 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2472 case MONO_NATIVE_LPWSTR:
2474 * mono_string_builder_to_utf16 does not allocate a
2475 * new buffer, so no need to free it.
2478 return MONO_MARSHAL_CONV_LPWSTR_SB;
2479 case MONO_NATIVE_LPSTR:
2480 return MONO_MARSHAL_CONV_LPSTR_SB;
2482 case MONO_NATIVE_LPTSTR:
2483 return MONO_MARSHAL_CONV_LPTSTR_SB;
2486 return MONO_MARSHAL_CONV_INVALID;
2491 * Return whenever a field of a native structure or an array member needs to
2495 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2497 MonoMarshalNative encoding;
2500 case MONO_TYPE_VALUETYPE:
2501 /* FIXME: Optimize this */
2503 case MONO_TYPE_OBJECT:
2504 case MONO_TYPE_CLASS:
2505 if (t->data.klass == mono_defaults.stringbuilder_class) {
2507 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2511 case MONO_TYPE_STRING:
2512 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2513 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2520 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2523 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2526 mono_marshal_lock ();
2529 g_hash_table_new (hash_func, equal_func);
2530 mono_memory_barrier ();
2533 mono_marshal_unlock ();
2539 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2541 return get_cache (var, hash_func, equal_func);
2545 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2549 mono_marshal_lock ();
2550 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2551 mono_marshal_unlock ();
2558 * Create a MonoMethod from MB, set INFO as wrapper info.
2561 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2562 int max_stack, WrapperInfo *info)
2566 res = mono_mb_create_method (mb, sig, max_stack);
2568 mono_marshal_set_wrapper_info (res, info);
2572 /* Create the method from the builder and place it in the cache */
2574 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2575 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2576 int max_stack, WrapperInfo *info, gboolean *out_found)
2583 mono_marshal_lock ();
2584 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2585 mono_marshal_unlock ();
2588 newm = mono_mb_create_method (mb, sig, max_stack);
2589 mono_marshal_lock ();
2590 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2593 g_hash_table_insert (cache, key, res);
2594 mono_marshal_set_wrapper_info (res, info);
2595 mono_marshal_unlock ();
2599 mono_marshal_unlock ();
2600 mono_free_method (newm);
2608 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2609 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2612 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2616 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2619 int wrapper_type = wrapper->wrapper_type;
2622 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2625 info = mono_marshal_get_wrapper_info (wrapper);
2627 switch (wrapper_type) {
2628 case MONO_WRAPPER_REMOTING_INVOKE:
2629 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2630 case MONO_WRAPPER_XDOMAIN_INVOKE:
2631 m = info->d.remoting.method;
2632 if (wrapper->is_inflated) {
2636 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2637 * contains an uninflated method.
2639 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2640 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2644 case MONO_WRAPPER_SYNCHRONIZED:
2645 m = info->d.synchronized.method;
2646 if (wrapper->is_inflated) {
2649 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2650 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2654 case MONO_WRAPPER_UNBOX:
2655 return info->d.unbox.method;
2656 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2657 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2658 return info->d.managed_to_native.method;
2661 case MONO_WRAPPER_RUNTIME_INVOKE:
2662 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2663 return info->d.runtime_invoke.method;
2672 * mono_marshal_get_wrapper_info:
2674 * Retrieve the WrapperInfo structure associated with WRAPPER.
2677 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2679 g_assert (wrapper->wrapper_type);
2681 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2685 * mono_marshal_set_wrapper_info:
2687 * Set the WrapperInfo structure associated with the wrapper
2688 * method METHOD to INFO.
2691 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2695 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2698 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2703 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2707 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2708 info->subtype = subtype;
2713 * get_wrapper_target_class:
2715 * Return the class where a wrapper method should be placed.
2718 get_wrapper_target_class (MonoImage *image)
2725 * - can't put all wrappers into an mscorlib class, because they reference
2726 * metadata (signature) so they should be put into the same image as the
2727 * method they wrap, so they are unloaded together.
2728 * - putting them into a class with a type initalizer could cause the
2729 * initializer to be executed which can be a problem if the wrappers are
2731 * - putting them into an inflated class can cause problems if the the
2732 * class is deleted because it references an image which is unloaded.
2733 * To avoid these problems, we put the wrappers into the <Module> class of
2736 if (image_is_dynamic (image)) {
2737 klass = ((MonoDynamicImage*)image)->wrappers_type;
2739 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2740 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2748 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2749 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2753 * check_generic_wrapper_cache:
2755 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2756 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2757 * generic method definition.
2760 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2763 MonoMethod *inst, *def;
2764 MonoGenericContext *ctx;
2766 g_assert (orig_method->is_inflated);
2767 ctx = mono_method_get_context (orig_method);
2770 * Look for the instance
2772 res = mono_marshal_find_in_cache (cache, key);
2777 * Look for the definition
2779 def = mono_marshal_find_in_cache (cache, def_key);
2782 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2783 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2785 mono_memory_barrier ();
2786 mono_marshal_lock ();
2787 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2789 g_hash_table_insert (cache, key, inst);
2792 mono_marshal_unlock ();
2799 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2802 MonoMethod *inst, *res;
2805 * We use the same cache for the generic definition and the instances.
2807 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2808 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2809 mono_memory_barrier ();
2810 mono_marshal_lock ();
2811 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2813 g_hash_table_insert (cache, key, inst);
2816 mono_marshal_unlock ();
2821 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2825 MonoMethod *inst, *def;
2828 * Look for the instance
2830 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2835 * Look for the definition
2837 def = mono_marshal_find_in_cache (cache, def_method->klass);
2839 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2840 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2843 mono_memory_barrier ();
2844 mono_marshal_lock ();
2845 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2847 g_hash_table_insert (cache, orig_method->klass, inst);
2850 mono_marshal_unlock ();
2857 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2860 MonoMethod *inst, *res;
2863 * We use the same cache for the generic definition and the instances.
2865 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2866 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2868 mono_memory_barrier ();
2869 mono_marshal_lock ();
2870 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2872 g_hash_table_insert (cache, orig_method->klass, inst);
2875 mono_marshal_unlock ();
2880 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2882 MonoMethodSignature *sig;
2883 MonoMethodBuilder *mb;
2888 MonoGenericContext *ctx = NULL;
2889 MonoMethod *orig_method = NULL;
2891 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2892 !strcmp (method->name, "BeginInvoke"));
2895 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2897 if (method->is_inflated) {
2898 orig_method = method;
2899 ctx = &((MonoMethodInflated*)method)->context;
2900 method = ((MonoMethodInflated*)method)->declaring;
2903 sig = mono_signature_no_pinvoke (method);
2909 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2910 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2914 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2915 (GHashFunc)mono_signature_hash,
2916 (GCompareFunc)mono_metadata_signature_equal);
2917 if ((res = mono_marshal_find_in_cache (cache, sig)))
2921 g_assert (sig->hasthis);
2923 name = mono_signature_to_name (sig, "begin_invoke");
2925 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2927 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2931 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2933 mono_mb_emit_ldarg (mb, 0);
2934 mono_mb_emit_ldloc (mb, params_var);
2935 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2936 mono_mb_emit_byte (mb, CEE_RET);
2941 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2942 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2944 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2951 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2953 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2956 MonoDomain *domain = mono_domain_get ();
2957 MonoAsyncResult *ares;
2958 MonoMethod *method = NULL;
2959 MonoMethodSignature *sig;
2960 MonoMethodMessage *msg;
2961 MonoObject *res, *exc;
2962 MonoArray *out_args;
2965 g_assert (delegate);
2967 if (!delegate->method_info) {
2968 g_assert (delegate->method);
2969 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2970 if (!mono_error_ok (&error)) {
2971 mono_error_set_pending_exception (&error);
2974 MONO_OBJECT_SETREF (delegate, method_info, rm);
2977 if (!delegate->method_info || !delegate->method_info->method)
2978 g_assert_not_reached ();
2980 klass = delegate->object.vtable->klass;
2982 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2983 g_assert (method != NULL);
2985 sig = mono_signature_no_pinvoke (method);
2987 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
2988 if (mono_error_set_pending_exception (&error))
2991 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2993 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."));
2997 if (ares->async_delegate != (MonoObject*)delegate) {
2998 mono_set_pending_exception (mono_get_exception_invalid_operation (
2999 "The IAsyncResult object provided does not match this delegate."));
3003 #ifndef DISABLE_REMOTING
3004 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3005 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3006 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3007 if (!mono_error_ok (&error)) {
3008 mono_error_set_pending_exception (&error);
3011 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3012 if (mono_error_set_pending_exception (&error))
3014 msg->call_type = CallType_EndInvoke;
3015 MONO_OBJECT_SETREF (msg, async_result, ares);
3016 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3017 if (!mono_error_ok (&error)) {
3018 mono_error_set_pending_exception (&error);
3024 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc, &error);
3025 if (mono_error_set_pending_exception (&error))
3030 if (((MonoException*)exc)->stack_trace) {
3031 MonoError inner_error;
3032 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3033 if (is_ok (&inner_error)) {
3035 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3037 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3040 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3042 mono_set_pending_exception ((MonoException*)exc);
3045 mono_method_return_message_restore (method, params, out_args, &error);
3046 mono_error_set_pending_exception (&error);
3053 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3055 MonoType *t = mono_type_get_underlying_type (return_type);
3057 if (return_type->byref)
3058 return_type = &mono_defaults.int_class->byval_arg;
3061 case MONO_TYPE_VOID:
3062 g_assert_not_reached ();
3065 case MONO_TYPE_STRING:
3066 case MONO_TYPE_CLASS:
3067 case MONO_TYPE_OBJECT:
3068 case MONO_TYPE_ARRAY:
3069 case MONO_TYPE_SZARRAY:
3073 case MONO_TYPE_BOOLEAN:
3076 case MONO_TYPE_CHAR:
3086 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3087 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3089 case MONO_TYPE_GENERICINST:
3090 if (!mono_type_generic_inst_is_valuetype (t))
3093 case MONO_TYPE_VALUETYPE: {
3094 MonoClass *klass = mono_class_from_mono_type (return_type);
3095 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3096 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3100 case MONO_TYPE_MVAR: {
3101 MonoClass *klass = mono_class_from_mono_type (return_type);
3102 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3106 g_warning ("type 0x%x not handled", return_type->type);
3107 g_assert_not_reached ();
3110 mono_mb_emit_byte (mb, CEE_RET);
3113 #endif /* DISABLE_JIT */
3116 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3118 MonoMethodSignature *sig;
3119 MonoMethodBuilder *mb;
3124 MonoGenericContext *ctx = NULL;
3125 MonoMethod *orig_method = NULL;
3127 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3128 !strcmp (method->name, "EndInvoke"));
3131 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3133 if (method->is_inflated) {
3134 orig_method = method;
3135 ctx = &((MonoMethodInflated*)method)->context;
3136 method = ((MonoMethodInflated*)method)->declaring;
3139 sig = mono_signature_no_pinvoke (method);
3145 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3146 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3150 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3151 (GHashFunc)mono_signature_hash,
3152 (GCompareFunc)mono_metadata_signature_equal);
3153 if ((res = mono_marshal_find_in_cache (cache, sig)))
3157 g_assert (sig->hasthis);
3159 name = mono_signature_to_name (sig, "end_invoke");
3161 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3163 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3167 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3169 mono_mb_emit_ldarg (mb, 0);
3170 mono_mb_emit_ldloc (mb, params_var);
3171 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3173 if (sig->ret->type == MONO_TYPE_VOID) {
3174 mono_mb_emit_byte (mb, CEE_POP);
3175 mono_mb_emit_byte (mb, CEE_RET);
3177 mono_mb_emit_restore_result (mb, sig->ret);
3182 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3183 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3185 res = mono_mb_create_and_cache (cache, sig,
3186 mb, sig, sig->param_count + 16);
3195 MonoMethodSignature *sig;
3197 } SignaturePointerPair;
3200 signature_pointer_pair_hash (gconstpointer data)
3202 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3204 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3208 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3210 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3211 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3215 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3217 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3219 return pair->pointer == user_data;
3223 free_signature_pointer_pair (SignaturePointerPair *pair)
3229 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3231 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3233 MonoMethodBuilder *mb;
3236 gpointer cache_key = NULL;
3237 SignaturePointerPair key;
3238 SignaturePointerPair *new_key;
3239 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3240 int pos0, pos1, pos2;
3242 MonoClass *target_class = NULL;
3243 gboolean closed_over_null = FALSE;
3244 MonoGenericContext *ctx = NULL;
3245 MonoGenericContainer *container = NULL;
3246 MonoMethod *orig_method = NULL;
3248 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3252 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3253 !strcmp (method->name, "Invoke"));
3255 invoke_sig = sig = mono_signature_no_pinvoke (method);
3258 * If the delegate target is null, and the target method is not static, a virtual
3259 * call is made to that method with the first delegate argument as this. This is
3260 * a non-documented .NET feature.
3263 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3264 if (target_method->is_inflated) {
3266 MonoType *target_type;
3268 g_assert (method->signature->hasthis);
3269 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3270 mono_method_get_context (method), &error);
3271 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3272 target_class = mono_class_from_mono_type (target_type);
3274 target_class = target_method->klass;
3277 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3280 if (static_method_with_first_arg_bound) {
3281 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3282 g_assert (!callvirt);
3283 invoke_sig = mono_method_signature (target_method);
3287 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3289 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3290 orig_method = method;
3291 ctx = &((MonoMethodInflated*)method)->context;
3292 method = ((MonoMethodInflated*)method)->declaring;
3294 container = mono_method_get_generic_container (method);
3296 container = method->klass->generic_container;
3297 g_assert (container);
3299 invoke_sig = sig = mono_signature_no_pinvoke (method);
3306 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3307 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3310 cache_key = method->klass;
3311 } else if (static_method_with_first_arg_bound) {
3312 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3313 (GHashFunc)mono_signature_hash,
3314 (GCompareFunc)mono_metadata_signature_equal);
3316 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3318 res = mono_marshal_find_in_cache (cache, invoke_sig);
3321 cache_key = invoke_sig;
3322 } else if (callvirt) {
3323 GHashTable **cache_ptr;
3325 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3327 /* We need to cache the signature+method pair */
3328 mono_marshal_lock ();
3330 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3332 key.sig = invoke_sig;
3333 key.pointer = target_method;
3334 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3335 mono_marshal_unlock ();
3339 // Inflated methods should not be in this cache because it's not stored on the imageset.
3340 g_assert (!method->is_inflated);
3341 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3342 (GHashFunc)mono_signature_hash,
3343 (GCompareFunc)mono_metadata_signature_equal);
3344 res = mono_marshal_find_in_cache (cache, sig);
3350 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3351 static_sig->hasthis = 0;
3352 if (!static_method_with_first_arg_bound)
3353 invoke_sig = static_sig;
3355 if (static_method_with_first_arg_bound)
3356 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3357 else if (closed_over_null)
3358 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3360 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3362 name = mono_signature_to_name (invoke_sig, "invoke");
3364 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3366 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3370 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3372 /* allocate local 0 (object) */
3373 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3374 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3375 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3376 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3377 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3380 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3382 g_assert (sig->hasthis);
3385 * {type: sig->ret} res;
3386 * if (delegates == null) {
3387 * return this.<target> ( args .. );
3389 * int i = 0, len = this.delegates.Length;
3391 * res = this.delegates [i].Invoke ( args .. );
3392 * } while (++i < len);
3397 /* this wrapper can be used in unmanaged-managed transitions */
3398 emit_thread_interrupt_checkpoint (mb);
3400 /* delegates = this.delegates */
3401 mono_mb_emit_ldarg (mb, 0);
3402 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3403 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3404 mono_mb_emit_stloc (mb, local_delegates);
3407 /* if (delegates == null) */
3408 mono_mb_emit_ldloc (mb, local_delegates);
3409 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3411 /* return target.<target_method|method_ptr> ( args .. ); */
3413 /* target = d.target; */
3414 mono_mb_emit_ldarg (mb, 0);
3415 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3416 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3417 mono_mb_emit_stloc (mb, local_target);
3419 /*static methods with bound first arg can have null target and still be bound*/
3420 if (!static_method_with_first_arg_bound) {
3421 /* if target != null */
3422 mono_mb_emit_ldloc (mb, local_target);
3423 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3425 /* then call this->method_ptr nonstatic */
3428 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3430 mono_mb_emit_ldloc (mb, local_target);
3431 for (i = 0; i < sig->param_count; ++i)
3432 mono_mb_emit_ldarg (mb, i + 1);
3433 mono_mb_emit_ldarg (mb, 0);
3434 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3435 mono_mb_emit_byte (mb, CEE_LDIND_I);
3436 mono_mb_emit_ldarg (mb, 0);
3437 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3438 mono_mb_emit_byte (mb, CEE_LDIND_I);
3439 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3440 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3441 mono_mb_emit_byte (mb, CEE_RET);
3444 /* else [target == null] call this->method_ptr static */
3445 mono_mb_patch_branch (mb, pos0);
3449 if (!closed_over_null) {
3450 if (target_class->valuetype) {
3451 mono_mb_emit_ldarg (mb, 1);
3452 for (i = 1; i < sig->param_count; ++i)
3453 mono_mb_emit_ldarg (mb, i + 1);
3454 mono_mb_emit_op (mb, CEE_CALL, target_method);
3456 mono_mb_emit_ldarg (mb, 1);
3457 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3458 for (i = 1; i < sig->param_count; ++i)
3459 mono_mb_emit_ldarg (mb, i + 1);
3460 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3463 mono_mb_emit_byte (mb, CEE_LDNULL);
3464 for (i = 0; i < sig->param_count; ++i)
3465 mono_mb_emit_ldarg (mb, i + 1);
3466 mono_mb_emit_op (mb, CEE_CALL, target_method);
3469 if (static_method_with_first_arg_bound) {
3470 mono_mb_emit_ldloc (mb, local_target);
3471 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3472 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3474 for (i = 0; i < sig->param_count; ++i)
3475 mono_mb_emit_ldarg (mb, i + 1);
3476 mono_mb_emit_ldarg (mb, 0);
3477 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3478 mono_mb_emit_byte (mb, CEE_LDIND_I);
3479 mono_mb_emit_ldarg (mb, 0);
3480 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3481 mono_mb_emit_byte (mb, CEE_LDIND_I);
3482 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3483 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3486 mono_mb_emit_byte (mb, CEE_RET);
3488 /* else [delegates != null] */
3489 mono_mb_patch_branch (mb, pos2);
3491 /* len = delegates.Length; */
3492 mono_mb_emit_ldloc (mb, local_delegates);
3493 mono_mb_emit_byte (mb, CEE_LDLEN);
3494 mono_mb_emit_byte (mb, CEE_CONV_I4);
3495 mono_mb_emit_stloc (mb, local_len);
3498 mono_mb_emit_icon (mb, 0);
3499 mono_mb_emit_stloc (mb, local_i);
3501 pos1 = mono_mb_get_label (mb);
3503 /* d = delegates [i]; */
3504 mono_mb_emit_ldloc (mb, local_delegates);
3505 mono_mb_emit_ldloc (mb, local_i);
3506 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3507 mono_mb_emit_stloc (mb, local_d);
3509 /* res = d.Invoke ( args .. ); */
3510 mono_mb_emit_ldloc (mb, local_d);
3511 for (i = 0; i < sig->param_count; i++)
3512 mono_mb_emit_ldarg (mb, i + 1);
3514 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3517 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3518 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3521 mono_mb_emit_stloc (mb, local_res);
3524 mono_mb_emit_add_to_local (mb, local_i, 1);
3527 mono_mb_emit_ldloc (mb, local_i);
3528 mono_mb_emit_ldloc (mb, local_len);
3529 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3533 mono_mb_emit_ldloc (mb, local_res);
3534 mono_mb_emit_byte (mb, CEE_RET);
3536 mb->skip_visibility = 1;
3537 #endif /* DISABLE_JIT */
3539 info = mono_wrapper_info_create (mb, subtype);
3544 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3545 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3546 } else if (callvirt) {
3547 new_key = g_new0 (SignaturePointerPair, 1);
3550 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3554 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3558 /* mono_method_print_code (res); */
3564 * the returned method invokes all methods in a multicast delegate.
3567 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3569 gboolean callvirt = FALSE;
3570 gboolean static_method_with_first_arg_bound = FALSE;
3571 MonoMethod *target_method = NULL;
3572 MonoMethodSignature *sig;
3574 sig = mono_signature_no_pinvoke (method);
3576 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3578 target_method = del->method;
3581 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3582 static_method_with_first_arg_bound = TRUE;
3583 target_method = del->method;
3586 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3590 MonoMethodSignature *ctor_sig;
3591 MonoMethodSignature *sig;
3594 /* protected by the marshal lock, contains CtorSigPair pointers */
3595 static GSList *strsig_list = NULL;
3597 static MonoMethodSignature *
3598 lookup_string_ctor_signature (MonoMethodSignature *sig)
3600 MonoMethodSignature *callsig;
3604 mono_marshal_lock ();
3606 for (item = strsig_list; item; item = item->next) {
3607 cs = (CtorSigPair *)item->data;
3608 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3609 * because it is lock-free.
3611 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3616 mono_marshal_unlock ();
3620 static MonoMethodSignature *
3621 add_string_ctor_signature (MonoMethod *method)
3623 MonoMethodSignature *callsig;
3626 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3627 callsig->ret = &mono_defaults.string_class->byval_arg;
3628 cs = g_new (CtorSigPair, 1);
3630 cs->ctor_sig = mono_method_signature (method);
3632 mono_marshal_lock ();
3633 strsig_list = g_slist_prepend (strsig_list, cs);
3634 mono_marshal_unlock ();
3639 * mono_marshal_get_string_ctor_signature:
3641 * Return the modified signature used by string ctors (they return the newly created
3644 MonoMethodSignature*
3645 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3647 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3649 sig = add_string_ctor_signature (method);
3655 get_runtime_invoke_type (MonoType *t, gboolean ret)
3658 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3660 /* Can't share this with 'I' as that needs another indirection */
3661 return &mono_defaults.int_class->this_arg;
3664 if (MONO_TYPE_IS_REFERENCE (t))
3665 return &mono_defaults.object_class->byval_arg;
3668 /* The result needs to be boxed */
3673 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3676 return &mono_defaults.sbyte_class->byval_arg;
3678 return &mono_defaults.int16_class->byval_arg;
3680 return &mono_defaults.int32_class->byval_arg;
3683 return &mono_defaults.int64_class->byval_arg;
3684 case MONO_TYPE_BOOLEAN:
3685 return &mono_defaults.byte_class->byval_arg;
3686 case MONO_TYPE_CHAR:
3687 return &mono_defaults.uint16_class->byval_arg;
3689 return &mono_defaults.int_class->byval_arg;
3690 case MONO_TYPE_VALUETYPE:
3691 if (t->data.klass->enumtype) {
3692 t = mono_class_enum_basetype (t->data.klass);
3702 * mono_marshal_get_runtime_invoke_sig:
3704 * Return a common signature used for sharing runtime invoke wrappers.
3706 static MonoMethodSignature*
3707 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3709 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3712 res->generic_param_count = 0;
3713 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3714 for (i = 0; i < res->param_count; ++i)
3715 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3721 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3723 /* Can't share wrappers which return a vtype since it needs to be boxed */
3724 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))
3727 return mono_metadata_signature_equal (sig1, sig2);
3735 * Emit the call to the wrapper method from a runtime invoke wrapper.
3738 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3739 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3741 gboolean virtual_, gboolean need_direct_wrapper)
3743 static MonoString *string_dummy = NULL;
3745 int *tmp_nullable_locals;
3746 gboolean void_ret = FALSE;
3747 gboolean string_ctor = method && method->string_ctor;
3749 /* to make it work with our special string constructors */
3750 if (!string_dummy) {
3751 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3752 string_dummy = mono_string_new_wrapper ("dummy");
3756 g_assert (sig->hasthis);
3757 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3762 if (mono_gc_is_moving ()) {
3763 mono_mb_emit_ptr (mb, &string_dummy);
3764 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3766 mono_mb_emit_ptr (mb, string_dummy);
3769 mono_mb_emit_ldarg (mb, 0);
3773 tmp_nullable_locals = g_new0 (int, sig->param_count);
3775 for (i = 0; i < sig->param_count; i++) {
3776 MonoType *t = sig->params [i];
3779 mono_mb_emit_ldarg (mb, 1);
3781 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3782 mono_mb_emit_byte (mb, CEE_ADD);
3786 mono_mb_emit_byte (mb, CEE_LDIND_I);
3787 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3788 * So to make this work we unbox it to a local variablee and push a reference to that.
3790 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3791 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3793 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3794 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3795 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3800 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3801 type = sig->params [i]->type;
3805 case MONO_TYPE_BOOLEAN:
3809 case MONO_TYPE_CHAR:
3818 mono_mb_emit_byte (mb, CEE_LDIND_I);
3819 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3821 case MONO_TYPE_STRING:
3822 case MONO_TYPE_CLASS:
3823 case MONO_TYPE_ARRAY:
3825 case MONO_TYPE_SZARRAY:
3826 case MONO_TYPE_OBJECT:
3827 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3829 case MONO_TYPE_GENERICINST:
3830 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3831 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3836 case MONO_TYPE_VALUETYPE:
3837 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3838 type = mono_class_enum_basetype (t->data.klass)->type;
3841 mono_mb_emit_byte (mb, CEE_LDIND_I);
3842 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3843 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3844 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3845 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3847 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3851 g_assert_not_reached ();
3856 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3857 } else if (need_direct_wrapper) {
3858 mono_mb_emit_op (mb, CEE_CALL, method);
3860 mono_mb_emit_ldarg (mb, 3);
3861 mono_mb_emit_calli (mb, callsig);
3864 if (sig->ret->byref) {
3866 g_assert_not_reached ();
3869 switch (sig->ret->type) {
3870 case MONO_TYPE_VOID:
3874 case MONO_TYPE_BOOLEAN:
3875 case MONO_TYPE_CHAR:
3888 case MONO_TYPE_VALUETYPE:
3889 case MONO_TYPE_TYPEDBYREF:
3890 case MONO_TYPE_GENERICINST:
3891 /* box value types */
3892 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3894 case MONO_TYPE_STRING:
3895 case MONO_TYPE_CLASS:
3896 case MONO_TYPE_ARRAY:
3897 case MONO_TYPE_SZARRAY:
3898 case MONO_TYPE_OBJECT:
3902 /* The result is an IntPtr */
3903 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3906 g_assert_not_reached ();
3910 mono_mb_emit_stloc (mb, loc_res);
3912 /* Convert back nullable-byref arguments */
3913 for (i = 0; i < sig->param_count; i++) {
3914 MonoType *t = sig->params [i];
3917 * Box the result and put it back into the array, the caller will have
3918 * to obtain it from there.
3920 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3921 mono_mb_emit_ldarg (mb, 1);
3922 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3923 mono_mb_emit_byte (mb, CEE_ADD);
3925 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3926 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3928 mono_mb_emit_byte (mb, CEE_STIND_REF);
3932 g_free (tmp_nullable_locals);
3936 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3937 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3938 gboolean virtual_, gboolean need_direct_wrapper)
3941 MonoExceptionClause *clause;
3942 int loc_res, loc_exc;
3944 /* The wrapper looks like this:
3950 * } catch (Exception e) {
3958 /* allocate local 0 (object) tmp */
3959 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3960 /* allocate local 1 (object) exc */
3961 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3963 /* *exc is assumed to be initialized to NULL by the caller */
3965 mono_mb_emit_byte (mb, CEE_LDARG_2);
3966 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3971 labels [1] = mono_mb_get_label (mb);
3972 emit_thread_force_interrupt_checkpoint (mb);
3973 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3975 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3977 /* Add a try clause around the call */
3978 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3979 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3980 clause->data.catch_class = mono_defaults.exception_class;
3981 clause->try_offset = labels [1];
3982 clause->try_len = mono_mb_get_label (mb) - labels [1];
3984 clause->handler_offset = mono_mb_get_label (mb);
3987 mono_mb_emit_stloc (mb, loc_exc);
3988 mono_mb_emit_byte (mb, CEE_LDARG_2);
3989 mono_mb_emit_ldloc (mb, loc_exc);
3990 mono_mb_emit_byte (mb, CEE_STIND_REF);
3992 mono_mb_emit_branch (mb, CEE_LEAVE);
3994 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3996 mono_mb_set_clauses (mb, 1, clause);
3998 mono_mb_patch_branch (mb, labels [2]);
3999 mono_mb_emit_ldloc (mb, loc_res);
4000 mono_mb_emit_byte (mb, CEE_RET);
4005 mono_mb_patch_branch (mb, labels [0]);
4006 emit_thread_force_interrupt_checkpoint (mb);
4007 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4009 mono_mb_emit_ldloc (mb, 0);
4010 mono_mb_emit_byte (mb, CEE_RET);
4015 * generates IL code for the runtime invoke function
4016 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4018 * we also catch exceptions if exc != null
4019 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4020 * it means that the compiled code for METHOD does not have to be looked up
4021 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4022 * its METHOD argument.
4025 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4027 MonoMethodSignature *sig, *csig, *callsig;
4028 MonoMethodBuilder *mb;
4029 GHashTable *cache = NULL;
4030 MonoClass *target_klass;
4031 MonoMethod *res = NULL;
4032 static MonoMethodSignature *cctor_signature = NULL;
4033 static MonoMethodSignature *finalize_signature = NULL;
4035 const char *param_names [16];
4036 gboolean need_direct_wrapper = FALSE;
4041 if (!cctor_signature) {
4042 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4043 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4045 if (!finalize_signature) {
4046 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4047 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4048 finalize_signature->hasthis = 1;
4052 need_direct_wrapper = TRUE;
4055 * Use a separate cache indexed by methods to speed things up and to avoid the
4056 * boundless mempool growth caused by the signature_dup stuff below.
4059 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4061 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4063 res = mono_marshal_find_in_cache (cache, method);
4067 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4068 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4070 * Array Get/Set/Address methods. The JIT implements them using inline code
4071 * so we need to create an invoke wrapper which calls the method directly.
4073 need_direct_wrapper = TRUE;
4076 if (method->string_ctor) {
4077 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4079 callsig = add_string_ctor_signature (method);
4080 /* Can't share this as we push a string as this */
4081 need_direct_wrapper = TRUE;
4083 if (method_is_dynamic (method))
4084 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4086 callsig = mono_method_signature (method);
4089 sig = mono_method_signature (method);
4091 target_klass = get_wrapper_target_class (method->klass->image);
4093 /* Try to share wrappers for non-corlib methods with simple signatures */
4094 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4095 callsig = cctor_signature;
4096 target_klass = mono_defaults.object_class;
4097 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4098 callsig = finalize_signature;
4099 target_klass = mono_defaults.object_class;
4102 if (need_direct_wrapper) {
4103 /* Already searched at the start */
4105 MonoMethodSignature *tmp_sig;
4107 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4108 GHashTable **cache_table = NULL;
4110 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4111 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4113 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4115 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4116 (GCompareFunc)runtime_invoke_signature_equal);
4118 /* from mono_marshal_find_in_cache */
4119 mono_marshal_lock ();
4120 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4121 mono_marshal_unlock ();
4128 /* Make a copy of the signature from the image mempool */
4130 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4134 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4136 csig->ret = &mono_defaults.object_class->byval_arg;
4137 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4138 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4140 csig->params [0] = &mono_defaults.object_class->byval_arg;
4141 csig->params [1] = &mono_defaults.int_class->byval_arg;
4142 csig->params [2] = &mono_defaults.int_class->byval_arg;
4143 csig->params [3] = &mono_defaults.int_class->byval_arg;
4146 /* This is called from runtime code so it has to be cdecl */
4147 csig->call_convention = MONO_CALL_C;
4150 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4151 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4155 param_names [0] = "this";
4156 param_names [1] = "params";
4157 param_names [2] = "exc";
4158 param_names [3] = "method";
4159 mono_mb_set_param_names (mb, param_names);
4161 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4164 if (need_direct_wrapper) {
4166 mb->skip_visibility = 1;
4168 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4169 info->d.runtime_invoke.method = method;
4170 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4172 /* taken from mono_mb_create_and_cache */
4173 mono_marshal_lock ();
4174 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4175 mono_marshal_unlock ();
4177 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4178 info->d.runtime_invoke.sig = callsig;
4180 /* Somebody may have created it before us */
4183 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4185 mono_marshal_lock ();
4186 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4188 GHashTable *direct_cache;
4190 g_hash_table_insert (cache, callsig, res);
4191 /* Can't insert it into wrapper_hash since the key is a signature */
4192 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4194 g_hash_table_insert (direct_cache, method, res);
4196 mono_free_method (newm);
4198 mono_marshal_unlock ();
4201 /* end mono_mb_create_and_cache */
4210 * mono_marshal_get_runtime_invoke_dynamic:
4212 * Return a method which can be used to invoke managed methods from native code
4214 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4215 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4216 * ARGS should point to an architecture specific structure containing
4217 * the arguments and space for the return value.
4218 * The other arguments are the same as for runtime_invoke (), except that
4219 * ARGS should contain the this argument too.
4220 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4221 * is only one copy of it, which is useful in full-aot.
4222 * The wrapper info for the wrapper is a WrapperInfo structure.
4225 mono_marshal_get_runtime_invoke_dynamic (void)
4227 static MonoMethod *method;
4228 MonoMethodSignature *csig;
4229 MonoExceptionClause *clause;
4230 MonoMethodBuilder *mb;
4238 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4240 csig->ret = &mono_defaults.void_class->byval_arg;
4241 csig->params [0] = &mono_defaults.int_class->byval_arg;
4242 csig->params [1] = &mono_defaults.int_class->byval_arg;
4243 csig->params [2] = &mono_defaults.int_class->byval_arg;
4244 csig->params [3] = &mono_defaults.int_class->byval_arg;
4246 name = g_strdup ("runtime_invoke_dynamic");
4247 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4251 /* allocate local 0 (object) tmp */
4252 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4253 /* allocate local 1 (object) exc */
4254 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4256 /* cond set *exc to null */
4257 mono_mb_emit_byte (mb, CEE_LDARG_1);
4258 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4259 mono_mb_emit_byte (mb, 3);
4260 mono_mb_emit_byte (mb, CEE_LDARG_1);
4261 mono_mb_emit_byte (mb, CEE_LDNULL);
4262 mono_mb_emit_byte (mb, CEE_STIND_REF);
4264 emit_thread_force_interrupt_checkpoint (mb);
4266 mono_mb_emit_byte (mb, CEE_LDARG_0);
4267 mono_mb_emit_byte (mb, CEE_LDARG_2);
4268 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4269 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4271 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4273 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4274 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4275 clause->try_len = mono_mb_get_label (mb);
4278 clause->data.filter_offset = mono_mb_get_label (mb);
4280 mono_mb_emit_byte (mb, CEE_POP);
4281 mono_mb_emit_byte (mb, CEE_LDARG_1);
4282 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4283 mono_mb_emit_byte (mb, CEE_PREFIX1);
4284 mono_mb_emit_byte (mb, CEE_CGT_UN);
4285 mono_mb_emit_byte (mb, CEE_PREFIX1);
4286 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4288 clause->handler_offset = mono_mb_get_label (mb);
4291 /* store exception */
4292 mono_mb_emit_stloc (mb, 1);
4294 mono_mb_emit_byte (mb, CEE_LDARG_1);
4295 mono_mb_emit_ldloc (mb, 1);
4296 mono_mb_emit_byte (mb, CEE_STIND_REF);
4298 mono_mb_emit_byte (mb, CEE_LDNULL);
4299 mono_mb_emit_stloc (mb, 0);
4301 /* Check for the abort exception */
4302 mono_mb_emit_ldloc (mb, 1);
4303 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4304 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4306 /* Delay the abort exception */
4307 mono_mb_emit_icall (mb, ves_icall_System_Threading_Thread_ResetAbort);
4309 mono_mb_patch_short_branch (mb, posna);
4310 mono_mb_emit_branch (mb, CEE_LEAVE);
4312 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4314 mono_mb_set_clauses (mb, 1, clause);
4317 mono_mb_patch_branch (mb, pos);
4318 //mono_mb_emit_ldloc (mb, 0);
4319 mono_mb_emit_byte (mb, CEE_RET);
4320 #endif /* DISABLE_JIT */
4322 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4324 mono_marshal_lock ();
4325 /* double-checked locking */
4327 method = mono_mb_create (mb, csig, 16, info);
4329 mono_marshal_unlock ();
4337 * mono_marshal_get_runtime_invoke_for_sig:
4339 * Return a runtime invoke wrapper for a given signature.
4342 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4344 MonoMethodSignature *csig, *callsig;
4345 MonoMethodBuilder *mb;
4347 GHashTable *cache = NULL;
4348 GHashTable **cache_table = NULL;
4349 MonoMethod *res = NULL;
4351 const char *param_names [16];
4354 /* A simplified version of mono_marshal_get_runtime_invoke */
4356 image = mono_defaults.corlib;
4358 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4360 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4362 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4363 (GCompareFunc)runtime_invoke_signature_equal);
4365 /* from mono_marshal_find_in_cache */
4366 mono_marshal_lock ();
4367 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4368 mono_marshal_unlock ();
4375 /* Make a copy of the signature from the image mempool */
4376 callsig = mono_metadata_signature_dup_full (image, callsig);
4378 csig = mono_metadata_signature_alloc (image, 4);
4379 csig->ret = &mono_defaults.object_class->byval_arg;
4380 csig->params [0] = &mono_defaults.object_class->byval_arg;
4381 csig->params [1] = &mono_defaults.int_class->byval_arg;
4382 csig->params [2] = &mono_defaults.int_class->byval_arg;
4383 csig->params [3] = &mono_defaults.int_class->byval_arg;
4386 /* This is called from runtime code so it has to be cdecl */
4387 csig->call_convention = MONO_CALL_C;
4390 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4391 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4395 param_names [0] = "this";
4396 param_names [1] = "params";
4397 param_names [2] = "exc";
4398 param_names [3] = "method";
4399 mono_mb_set_param_names (mb, param_names);
4401 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4404 /* taken from mono_mb_create_and_cache */
4405 mono_marshal_lock ();
4406 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4407 mono_marshal_unlock ();
4409 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4410 info->d.runtime_invoke.sig = callsig;
4412 /* Somebody may have created it before us */
4415 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4417 mono_marshal_lock ();
4418 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4421 g_hash_table_insert (cache, callsig, res);
4423 mono_free_method (newm);
4425 mono_marshal_unlock ();
4428 /* end mono_mb_create_and_cache */
4437 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4439 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4440 klass->name_space, klass->name);
4442 mono_mb_emit_exception_marshal_directive (mb, msg);
4447 * generates IL code for the icall wrapper (the generated method
4448 * calls the unmanaged code in func)
4449 * The wrapper info for the wrapper is a WrapperInfo structure.
4452 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4454 MonoMethodSignature *csig, *csig2;
4455 MonoMethodBuilder *mb;
4460 g_assert (sig->pinvoke);
4462 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4464 mb->method->save_lmf = 1;
4466 /* Add an explicit this argument */
4468 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4470 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4474 mono_mb_emit_byte (mb, CEE_LDARG_0);
4476 for (i = 0; i < sig->param_count; i++)
4477 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4479 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4480 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4481 mono_mb_emit_calli (mb, csig2);
4482 if (check_exceptions)
4483 emit_thread_interrupt_checkpoint (mb);
4484 mono_mb_emit_byte (mb, CEE_RET);
4487 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4489 if (csig->call_convention == MONO_CALL_VARARG)
4490 csig->call_convention = 0;
4492 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4493 info->d.icall.func = (gpointer)func;
4494 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
4501 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4502 MonoMarshalSpec *spec,
4503 int conv_arg, MonoType **conv_arg_type,
4504 MarshalAction action)
4507 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4508 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4514 static MonoClass *ICustomMarshaler = NULL;
4515 static MonoMethod *cleanup_native, *cleanup_managed;
4516 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4517 MonoMethod *get_instance = NULL;
4518 MonoMethodBuilder *mb = m->mb;
4519 char *exception_msg = NULL;
4523 if (!ICustomMarshaler) {
4524 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4526 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4527 goto handle_exception;
4530 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4531 g_assert (cleanup_native);
4532 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4533 g_assert (cleanup_managed);
4534 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4535 g_assert (marshal_managed_to_native);
4536 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4537 g_assert (marshal_native_to_managed);
4539 mono_memory_barrier ();
4540 ICustomMarshaler = klass;
4543 if (spec->data.custom_data.image)
4544 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4546 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4547 g_assert (mtype != NULL);
4548 mono_error_assert_ok (&error);
4549 mklass = mono_class_from_mono_type (mtype);
4550 g_assert (mklass != NULL);
4552 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4553 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4555 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4557 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4558 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4559 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4560 (get_sig->params [0]->type != MONO_TYPE_STRING))
4561 get_instance = NULL;
4565 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);
4568 /* Throw exception and emit compensation code if neccesary */
4569 if (exception_msg) {
4571 case MARSHAL_ACTION_CONV_IN:
4572 case MARSHAL_ACTION_CONV_RESULT:
4573 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4574 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4575 mono_mb_emit_byte (mb, CEE_POP);
4577 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4578 g_free (exception_msg);
4581 case MARSHAL_ACTION_PUSH:
4582 mono_mb_emit_byte (mb, CEE_LDNULL);
4590 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4591 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4594 case MARSHAL_ACTION_CONV_IN:
4596 case MONO_TYPE_CLASS:
4597 case MONO_TYPE_OBJECT:
4598 case MONO_TYPE_STRING:
4599 case MONO_TYPE_ARRAY:
4600 case MONO_TYPE_SZARRAY:
4601 case MONO_TYPE_VALUETYPE:
4605 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4606 g_assert_not_reached ();
4610 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4612 mono_mb_emit_byte (mb, CEE_LDNULL);
4613 mono_mb_emit_stloc (mb, conv_arg);
4615 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4618 /* Minic MS.NET behavior */
4619 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4622 /* Check for null */
4623 mono_mb_emit_ldarg (mb, argnum);
4625 mono_mb_emit_byte (mb, CEE_LDIND_I);
4626 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4628 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4630 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4632 mono_mb_emit_ldarg (mb, argnum);
4634 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4636 if (t->type == MONO_TYPE_VALUETYPE) {
4638 * Since we can't determine the type of the argument, we
4639 * will assume the unmanaged function takes a pointer.
4641 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4643 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4646 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4647 mono_mb_emit_stloc (mb, conv_arg);
4649 mono_mb_patch_branch (mb, pos2);
4652 case MARSHAL_ACTION_CONV_OUT:
4653 /* Check for null */
4654 mono_mb_emit_ldloc (mb, conv_arg);
4655 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4658 mono_mb_emit_ldarg (mb, argnum);
4660 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4662 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4664 mono_mb_emit_ldloc (mb, conv_arg);
4665 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4666 mono_mb_emit_byte (mb, CEE_STIND_REF);
4667 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4668 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4670 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4672 mono_mb_emit_ldloc (mb, conv_arg);
4673 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4675 /* We have nowhere to store the result */
4676 mono_mb_emit_byte (mb, CEE_POP);
4679 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4681 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4683 mono_mb_emit_ldloc (mb, conv_arg);
4685 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4687 mono_mb_patch_branch (mb, pos2);
4690 case MARSHAL_ACTION_PUSH:
4692 mono_mb_emit_ldloc_addr (mb, conv_arg);
4694 mono_mb_emit_ldloc (mb, conv_arg);
4697 case MARSHAL_ACTION_CONV_RESULT:
4698 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4700 mono_mb_emit_stloc (mb, 3);
4702 mono_mb_emit_ldloc (mb, 3);
4703 mono_mb_emit_stloc (mb, loc1);
4705 /* Check for null */
4706 mono_mb_emit_ldloc (mb, 3);
4707 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4709 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4711 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4712 mono_mb_emit_byte (mb, CEE_DUP);
4714 mono_mb_emit_ldloc (mb, 3);
4715 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4716 mono_mb_emit_stloc (mb, 3);
4718 mono_mb_emit_ldloc (mb, loc1);
4719 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4721 mono_mb_patch_branch (mb, pos2);
4724 case MARSHAL_ACTION_MANAGED_CONV_IN:
4725 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4727 mono_mb_emit_byte (mb, CEE_LDNULL);
4728 mono_mb_emit_stloc (mb, conv_arg);
4730 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4733 /* Check for null */
4734 mono_mb_emit_ldarg (mb, argnum);
4736 mono_mb_emit_byte (mb, CEE_LDIND_I);
4737 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4739 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4740 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4742 mono_mb_emit_ldarg (mb, argnum);
4744 mono_mb_emit_byte (mb, CEE_LDIND_I);
4746 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4747 mono_mb_emit_stloc (mb, conv_arg);
4749 mono_mb_patch_branch (mb, pos2);
4752 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4753 g_assert (!t->byref);
4755 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4757 mono_mb_emit_stloc (mb, 3);
4759 mono_mb_emit_ldloc (mb, 3);
4760 mono_mb_emit_stloc (mb, loc1);
4762 /* Check for null */
4763 mono_mb_emit_ldloc (mb, 3);
4764 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4766 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4767 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4768 mono_mb_emit_byte (mb, CEE_DUP);
4770 mono_mb_emit_ldloc (mb, 3);
4771 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4772 mono_mb_emit_stloc (mb, 3);
4774 mono_mb_emit_ldloc (mb, loc1);
4775 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4777 mono_mb_patch_branch (mb, pos2);
4780 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4782 /* Check for null */
4783 mono_mb_emit_ldloc (mb, conv_arg);
4784 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4787 mono_mb_emit_ldarg (mb, argnum);
4789 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4791 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4793 mono_mb_emit_ldloc (mb, conv_arg);
4794 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4795 mono_mb_emit_byte (mb, CEE_STIND_I);
4798 /* Call CleanUpManagedData */
4799 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4801 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4803 mono_mb_emit_ldloc (mb, conv_arg);
4804 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4806 mono_mb_patch_branch (mb, pos2);
4810 g_assert_not_reached ();
4818 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4819 MonoMarshalSpec *spec,
4820 int conv_arg, MonoType **conv_arg_type,
4821 MarshalAction action)
4824 MonoMethodBuilder *mb = m->mb;
4827 case MARSHAL_ACTION_CONV_IN: {
4828 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4830 g_assert (t->type == MONO_TYPE_OBJECT);
4831 g_assert (!t->byref);
4833 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4834 mono_mb_emit_ldarg (mb, argnum);
4835 mono_mb_emit_icon (mb, encoding);
4836 mono_mb_emit_icon (mb, t->attrs);
4837 mono_mb_emit_icall (mb, mono_marshal_asany);
4838 mono_mb_emit_stloc (mb, conv_arg);
4842 case MARSHAL_ACTION_PUSH:
4843 mono_mb_emit_ldloc (mb, conv_arg);
4846 case MARSHAL_ACTION_CONV_OUT: {
4847 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4849 mono_mb_emit_ldarg (mb, argnum);
4850 mono_mb_emit_ldloc (mb, conv_arg);
4851 mono_mb_emit_icon (mb, encoding);
4852 mono_mb_emit_icon (mb, t->attrs);
4853 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4858 g_assert_not_reached ();
4865 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4866 MonoMarshalSpec *spec,
4867 int conv_arg, MonoType **conv_arg_type,
4868 MarshalAction action)
4871 MonoMethodBuilder *mb = m->mb;
4872 MonoClass *klass, *date_time_class;
4875 klass = mono_class_from_mono_type (t);
4877 date_time_class = mono_class_get_date_time_class ();
4880 case MARSHAL_ACTION_CONV_IN:
4881 if (klass == date_time_class) {
4882 /* Convert it to an OLE DATE type */
4883 static MonoMethod *to_oadate;
4886 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4887 g_assert (to_oadate);
4889 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4892 mono_mb_emit_ldarg (mb, argnum);
4893 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4896 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4898 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4900 mono_mb_emit_ldarg_addr (mb, argnum);
4901 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4902 mono_mb_emit_stloc (mb, conv_arg);
4906 mono_mb_patch_branch (mb, pos);
4910 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4911 klass->blittable || klass->enumtype)
4914 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4916 /* store the address of the source into local variable 0 */
4918 mono_mb_emit_ldarg (mb, argnum);
4920 mono_mb_emit_ldarg_addr (mb, argnum);
4922 mono_mb_emit_stloc (mb, 0);
4924 /* allocate space for the native struct and
4925 * store the address into local variable 1 (dest) */
4926 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4927 mono_mb_emit_byte (mb, CEE_PREFIX1);
4928 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4929 mono_mb_emit_stloc (mb, conv_arg);
4932 mono_mb_emit_ldloc (mb, 0);
4933 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4936 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4938 mono_mb_emit_ldloc (mb, conv_arg);
4939 mono_mb_emit_stloc (mb, 1);
4941 /* emit valuetype conversion code */
4942 emit_struct_conv (mb, klass, FALSE);
4946 mono_mb_patch_branch (mb, pos);
4949 case MARSHAL_ACTION_PUSH:
4950 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4952 g_assert (!t->byref);
4954 /* Have to change the signature since the vtype is passed byref */
4955 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4957 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4958 klass->blittable || klass->enumtype)
4959 mono_mb_emit_ldarg_addr (mb, argnum);
4961 mono_mb_emit_ldloc (mb, conv_arg);
4965 if (klass == date_time_class) {
4967 mono_mb_emit_ldloc_addr (mb, conv_arg);
4969 mono_mb_emit_ldloc (mb, conv_arg);
4973 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4974 klass->blittable || klass->enumtype) {
4975 mono_mb_emit_ldarg (mb, argnum);
4978 mono_mb_emit_ldloc (mb, conv_arg);
4980 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4981 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4985 case MARSHAL_ACTION_CONV_OUT:
4986 if (klass == date_time_class) {
4987 /* Convert from an OLE DATE type */
4988 static MonoMethod *from_oadate;
4993 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4995 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4996 g_assert (from_oadate);
4998 mono_mb_emit_ldarg (mb, argnum);
4999 mono_mb_emit_ldloc (mb, conv_arg);
5000 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5001 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5006 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5007 klass->blittable || klass->enumtype)
5011 /* dst = argument */
5012 mono_mb_emit_ldarg (mb, argnum);
5013 mono_mb_emit_stloc (mb, 1);
5015 mono_mb_emit_ldloc (mb, 1);
5016 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5018 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5019 /* src = tmp_locals [i] */
5020 mono_mb_emit_ldloc (mb, conv_arg);
5021 mono_mb_emit_stloc (mb, 0);
5023 /* emit valuetype conversion code */
5024 emit_struct_conv (mb, klass, TRUE);
5028 emit_struct_free (mb, klass, conv_arg);
5031 mono_mb_patch_branch (mb, pos);
5034 case MARSHAL_ACTION_CONV_RESULT:
5035 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5037 mono_mb_emit_stloc (mb, 3);
5041 /* load pointer to returned value type */
5042 g_assert (m->vtaddr_var);
5043 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5044 /* store the address of the source into local variable 0 */
5045 mono_mb_emit_stloc (mb, 0);
5047 mono_mb_emit_ldloc_addr (mb, 3);
5048 mono_mb_emit_stloc (mb, 1);
5050 /* emit valuetype conversion code */
5051 emit_struct_conv (mb, klass, TRUE);
5054 case MARSHAL_ACTION_MANAGED_CONV_IN:
5055 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5056 klass->blittable || klass->enumtype) {
5061 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5063 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5067 mono_mb_emit_ldarg (mb, argnum);
5069 mono_mb_emit_ldarg_addr (mb, argnum);
5070 mono_mb_emit_stloc (mb, 0);
5073 mono_mb_emit_ldloc (mb, 0);
5074 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5077 mono_mb_emit_ldloc_addr (mb, conv_arg);
5078 mono_mb_emit_stloc (mb, 1);
5080 /* emit valuetype conversion code */
5081 emit_struct_conv (mb, klass, TRUE);
5084 mono_mb_patch_branch (mb, pos);
5087 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5088 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5089 klass->blittable || klass->enumtype) {
5093 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5096 /* Check for null */
5097 mono_mb_emit_ldarg (mb, argnum);
5098 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5101 mono_mb_emit_ldloc_addr (mb, conv_arg);
5102 mono_mb_emit_stloc (mb, 0);
5105 mono_mb_emit_ldarg (mb, argnum);
5106 mono_mb_emit_stloc (mb, 1);
5108 /* emit valuetype conversion code */
5109 emit_struct_conv (mb, klass, FALSE);
5111 mono_mb_patch_branch (mb, pos2);
5114 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5115 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5116 klass->blittable || klass->enumtype) {
5117 mono_mb_emit_stloc (mb, 3);
5122 /* load pointer to returned value type */
5123 g_assert (m->vtaddr_var);
5124 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5126 /* store the address of the source into local variable 0 */
5127 mono_mb_emit_stloc (mb, 0);
5128 /* allocate space for the native struct and
5129 * store the address into dst_ptr */
5130 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5131 m->retobj_class = klass;
5132 g_assert (m->retobj_var);
5133 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5134 mono_mb_emit_byte (mb, CEE_CONV_I);
5135 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5136 mono_mb_emit_stloc (mb, 1);
5137 mono_mb_emit_ldloc (mb, 1);
5138 mono_mb_emit_stloc (mb, m->retobj_var);
5140 /* emit valuetype conversion code */
5141 emit_struct_conv (mb, klass, FALSE);
5145 g_assert_not_reached ();
5152 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5153 MonoMarshalSpec *spec,
5154 int conv_arg, MonoType **conv_arg_type,
5155 MarshalAction action)
5159 case MARSHAL_ACTION_CONV_IN:
5160 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5162 case MARSHAL_ACTION_MANAGED_CONV_IN:
5163 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5167 MonoMethodBuilder *mb = m->mb;
5168 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5169 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5173 case MARSHAL_ACTION_CONV_IN:
5174 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5175 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5178 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5181 mono_mb_emit_ldarg (mb, argnum);
5182 mono_mb_emit_byte (mb, CEE_LDIND_I);
5184 mono_mb_emit_ldarg (mb, argnum);
5187 if (conv == MONO_MARSHAL_CONV_INVALID) {
5188 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5189 mono_mb_emit_exception_marshal_directive (mb, msg);
5191 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5193 mono_mb_emit_stloc (mb, conv_arg);
5197 case MARSHAL_ACTION_CONV_OUT:
5198 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5199 if (conv == MONO_MARSHAL_CONV_INVALID) {
5200 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5201 mono_mb_emit_exception_marshal_directive (mb, msg);
5205 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5206 static MonoMethod *m;
5209 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5214 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5215 mono_mb_emit_exception_marshal_directive (mb, msg);
5220 * Have to allocate a new string with the same length as the original, and
5221 * copy the contents of the buffer pointed to by CONV_ARG into it.
5223 g_assert (t->byref);
5224 mono_mb_emit_ldarg (mb, argnum);
5225 mono_mb_emit_ldloc (mb, conv_arg);
5226 mono_mb_emit_ldarg (mb, argnum);
5227 mono_mb_emit_byte (mb, CEE_LDIND_I);
5228 mono_mb_emit_managed_call (mb, m, NULL);
5229 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5230 mono_mb_emit_byte (mb, CEE_STIND_REF);
5231 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5233 mono_mb_emit_ldarg (mb, argnum);
5234 mono_mb_emit_ldloc (mb, conv_arg);
5235 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5236 mono_mb_emit_byte (mb, stind_op);
5241 mono_mb_emit_ldloc (mb, conv_arg);
5242 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5243 mono_mb_emit_icall (mb, mono_free_bstr);
5245 mono_mb_emit_icall (mb, mono_marshal_free);
5249 case MARSHAL_ACTION_PUSH:
5250 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5251 mono_mb_emit_ldloc_addr (mb, conv_arg);
5253 mono_mb_emit_ldloc (mb, conv_arg);
5256 case MARSHAL_ACTION_CONV_RESULT:
5257 mono_mb_emit_stloc (mb, 0);
5259 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5260 if (conv == MONO_MARSHAL_CONV_INVALID) {
5261 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5262 mono_mb_emit_exception_marshal_directive (mb, msg);
5266 mono_mb_emit_ldloc (mb, 0);
5267 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5268 mono_mb_emit_stloc (mb, 3);
5270 /* free the string */
5271 mono_mb_emit_ldloc (mb, 0);
5272 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5273 mono_mb_emit_icall (mb, mono_free_bstr);
5275 mono_mb_emit_icall (mb, mono_marshal_free);
5278 case MARSHAL_ACTION_MANAGED_CONV_IN:
5279 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5281 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5284 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5288 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5289 if (conv == MONO_MARSHAL_CONV_INVALID) {
5290 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5291 mono_mb_emit_exception_marshal_directive (mb, msg);
5295 mono_mb_emit_ldarg (mb, argnum);
5297 mono_mb_emit_byte (mb, CEE_LDIND_I);
5298 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5299 mono_mb_emit_stloc (mb, conv_arg);
5302 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5306 mono_mb_emit_ldarg (mb, argnum);
5307 mono_mb_emit_ldloc (mb, conv_arg);
5308 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5309 mono_mb_emit_byte (mb, stind_op);
5314 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5315 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5316 /* We need to make a copy so the caller is able to free it */
5317 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5319 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5320 mono_mb_emit_stloc (mb, 3);
5324 g_assert_not_reached ();
5332 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5333 MonoMarshalSpec *spec, int conv_arg,
5334 MonoType **conv_arg_type, MarshalAction action)
5337 if (action == MARSHAL_ACTION_CONV_IN)
5338 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5340 MonoMethodBuilder *mb = m->mb;
5343 case MARSHAL_ACTION_CONV_IN: {
5344 MonoType *intptr_type;
5345 int dar_release_slot, pos;
5347 intptr_type = &mono_defaults.int_class->byval_arg;
5348 conv_arg = mono_mb_add_local (mb, intptr_type);
5349 *conv_arg_type = intptr_type;
5351 if (!sh_dangerous_add_ref)
5352 init_safe_handle ();
5354 mono_mb_emit_ldarg (mb, argnum);
5355 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5356 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5358 mono_mb_patch_branch (mb, pos);
5361 * My tests in show that ref SafeHandles are not really
5362 * passed as ref objects. Instead a NULL is passed as the
5365 mono_mb_emit_icon (mb, 0);
5366 mono_mb_emit_stloc (mb, conv_arg);
5370 /* Create local to hold the ref parameter to DangerousAddRef */
5371 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5373 /* set release = false; */
5374 mono_mb_emit_icon (mb, 0);
5375 mono_mb_emit_stloc (mb, dar_release_slot);
5377 /* safehandle.DangerousAddRef (ref release) */
5378 mono_mb_emit_ldarg (mb, argnum);
5379 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5380 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5382 /* Pull the handle field from SafeHandle */
5383 mono_mb_emit_ldarg (mb, argnum);
5384 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5385 mono_mb_emit_byte (mb, CEE_LDIND_I);
5386 mono_mb_emit_stloc (mb, conv_arg);
5391 case MARSHAL_ACTION_PUSH:
5393 mono_mb_emit_ldloc_addr (mb, conv_arg);
5395 mono_mb_emit_ldloc (mb, conv_arg);
5398 case MARSHAL_ACTION_CONV_OUT: {
5399 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5400 int dar_release_slot = conv_arg + 1;
5403 if (!sh_dangerous_release)
5404 init_safe_handle ();
5410 * My tests indicate that ref SafeHandles parameters are not actually
5411 * passed by ref, but instead a new Handle is created regardless of
5412 * whether a change happens in the unmanaged side.
5414 * Also, the Handle is created before calling into unmanaged code,
5415 * but we do not support that mechanism (getting to the original
5416 * handle) and it makes no difference where we create this
5418 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5420 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5423 /* refval = new SafeHandleDerived ()*/
5424 mono_mb_emit_ldarg (mb, argnum);
5425 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5426 mono_mb_emit_byte (mb, CEE_STIND_REF);
5428 /* refval.handle = returned_handle */
5429 mono_mb_emit_ldarg (mb, argnum);
5430 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5431 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5432 mono_mb_emit_ldloc (mb, conv_arg);
5433 mono_mb_emit_byte (mb, CEE_STIND_I);
5435 mono_mb_emit_ldloc (mb, dar_release_slot);
5436 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5437 mono_mb_emit_ldarg (mb, argnum);
5438 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5439 mono_mb_patch_branch (mb, label_next);
5444 case MARSHAL_ACTION_CONV_RESULT: {
5445 MonoMethod *ctor = NULL;
5446 int intptr_handle_slot;
5448 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5449 mono_mb_emit_byte (mb, CEE_POP);
5450 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5454 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5456 mono_mb_emit_byte (mb, CEE_POP);
5457 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5460 /* Store the IntPtr results into a local */
5461 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5462 mono_mb_emit_stloc (mb, intptr_handle_slot);
5464 /* Create return value */
5465 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5466 mono_mb_emit_stloc (mb, 3);
5468 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5469 mono_mb_emit_ldloc (mb, 3);
5470 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5471 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5472 mono_mb_emit_byte (mb, CEE_STIND_I);
5476 case MARSHAL_ACTION_MANAGED_CONV_IN:
5477 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5480 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5481 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5484 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5485 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5488 printf ("Unhandled case for MarshalAction: %d\n", action);
5496 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5497 MonoMarshalSpec *spec, int conv_arg,
5498 MonoType **conv_arg_type, MarshalAction action)
5501 if (action == MARSHAL_ACTION_CONV_IN)
5502 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5504 MonoMethodBuilder *mb = m->mb;
5507 case MARSHAL_ACTION_CONV_IN: {
5508 MonoType *intptr_type;
5510 intptr_type = &mono_defaults.int_class->byval_arg;
5511 conv_arg = mono_mb_add_local (mb, intptr_type);
5512 *conv_arg_type = intptr_type;
5515 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5516 mono_mb_emit_exception_marshal_directive (mb, msg);
5519 mono_mb_emit_ldarg_addr (mb, argnum);
5520 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5521 mono_mb_emit_byte (mb, CEE_ADD);
5522 mono_mb_emit_byte (mb, CEE_LDIND_I);
5523 mono_mb_emit_stloc (mb, conv_arg);
5527 case MARSHAL_ACTION_PUSH:
5528 mono_mb_emit_ldloc (mb, conv_arg);
5531 case MARSHAL_ACTION_CONV_OUT: {
5532 /* no resource release required */
5536 case MARSHAL_ACTION_CONV_RESULT: {
5537 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5538 mono_mb_emit_exception_marshal_directive (mb, msg);
5542 case MARSHAL_ACTION_MANAGED_CONV_IN:
5543 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5546 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5547 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5550 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5551 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5554 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5562 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5563 MonoMarshalSpec *spec,
5564 int conv_arg, MonoType **conv_arg_type,
5565 MarshalAction action)
5568 if (action == MARSHAL_ACTION_CONV_IN)
5569 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5571 MonoMethodBuilder *mb = m->mb;
5572 MonoClass *klass = mono_class_from_mono_type (t);
5576 case MARSHAL_ACTION_CONV_IN:
5577 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5578 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5580 m->orig_conv_args [argnum] = 0;
5582 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5583 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5584 mono_mb_emit_exception_marshal_directive (mb, msg);
5588 if (klass->delegate) {
5590 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5591 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5592 mono_mb_emit_exception_marshal_directive (mb, msg);
5594 mono_mb_emit_byte (mb, CEE_LDNULL);
5595 mono_mb_emit_stloc (mb, conv_arg);
5597 mono_mb_emit_ldarg (mb, argnum);
5598 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5599 mono_mb_emit_stloc (mb, conv_arg);
5601 } else if (klass == mono_defaults.stringbuilder_class) {
5602 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5603 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5607 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5608 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5609 mono_mb_emit_exception_marshal_directive (mb, msg);
5615 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5618 if (conv == MONO_MARSHAL_CONV_INVALID) {
5619 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5620 mono_mb_emit_exception_marshal_directive (mb, msg);
5624 mono_mb_emit_ldarg (mb, argnum);
5626 mono_mb_emit_byte (mb, CEE_LDIND_I);
5628 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5629 mono_mb_emit_stloc (mb, conv_arg);
5630 } else if (klass->blittable) {
5631 mono_mb_emit_byte (mb, CEE_LDNULL);
5632 mono_mb_emit_stloc (mb, conv_arg);
5634 mono_mb_emit_ldarg (mb, argnum);
5635 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5637 mono_mb_emit_ldarg (mb, argnum);
5638 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5639 mono_mb_emit_stloc (mb, conv_arg);
5641 mono_mb_patch_branch (mb, pos);
5644 mono_mb_emit_byte (mb, CEE_LDNULL);
5645 mono_mb_emit_stloc (mb, conv_arg);
5648 /* we dont need any conversions for out parameters */
5649 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5652 mono_mb_emit_ldarg (mb, argnum);
5653 mono_mb_emit_byte (mb, CEE_LDIND_I);
5656 mono_mb_emit_ldarg (mb, argnum);
5657 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5658 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5661 /* store the address of the source into local variable 0 */
5662 mono_mb_emit_stloc (mb, 0);
5663 mono_mb_emit_ldloc (mb, 0);
5664 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5666 /* allocate space for the native struct and store the address */
5667 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5668 mono_mb_emit_byte (mb, CEE_PREFIX1);
5669 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5670 mono_mb_emit_stloc (mb, conv_arg);
5673 /* Need to store the original buffer so we can free it later */
5674 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5675 mono_mb_emit_ldloc (mb, conv_arg);
5676 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5679 /* set the src_ptr */
5680 mono_mb_emit_ldloc (mb, 0);
5681 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5682 mono_mb_emit_stloc (mb, 0);
5685 mono_mb_emit_ldloc (mb, conv_arg);
5686 mono_mb_emit_stloc (mb, 1);
5688 /* emit valuetype conversion code */
5689 emit_struct_conv (mb, klass, FALSE);
5691 mono_mb_patch_branch (mb, pos);
5695 case MARSHAL_ACTION_CONV_OUT:
5696 if (klass == mono_defaults.stringbuilder_class) {
5698 MonoMarshalNative encoding;
5699 MonoMarshalConv conv;
5701 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5702 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5704 g_assert (encoding != -1);
5707 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5711 mono_mb_emit_ldarg (mb, argnum);
5712 mono_mb_emit_ldloc (mb, conv_arg);
5715 case MONO_NATIVE_LPWSTR:
5716 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5718 case MONO_NATIVE_LPSTR:
5719 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5722 g_assert_not_reached ();
5725 mono_mb_emit_byte (mb, CEE_STIND_REF);
5727 mono_mb_emit_ldarg (mb, argnum);
5728 mono_mb_emit_ldloc (mb, conv_arg);
5730 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5734 mono_mb_emit_ldloc (mb, conv_arg);
5735 mono_mb_emit_icall (mb, mono_marshal_free);
5740 if (klass->delegate) {
5742 mono_mb_emit_ldarg (mb, argnum);
5743 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5744 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5745 mono_mb_emit_ldloc (mb, conv_arg);
5746 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5747 mono_mb_emit_byte (mb, CEE_STIND_REF);
5752 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5753 /* allocate a new object */
5754 mono_mb_emit_ldarg (mb, argnum);
5755 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5756 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5757 mono_mb_emit_byte (mb, CEE_STIND_REF);
5760 /* dst = *argument */
5761 mono_mb_emit_ldarg (mb, argnum);
5764 mono_mb_emit_byte (mb, CEE_LDIND_I);
5766 mono_mb_emit_stloc (mb, 1);
5768 mono_mb_emit_ldloc (mb, 1);
5769 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5771 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5772 mono_mb_emit_ldloc (mb, 1);
5773 mono_mb_emit_icon (mb, sizeof (MonoObject));
5774 mono_mb_emit_byte (mb, CEE_ADD);
5775 mono_mb_emit_stloc (mb, 1);
5777 /* src = tmp_locals [i] */
5778 mono_mb_emit_ldloc (mb, conv_arg);
5779 mono_mb_emit_stloc (mb, 0);
5781 /* emit valuetype conversion code */
5782 emit_struct_conv (mb, klass, TRUE);
5784 /* Free the structure returned by the native code */
5785 emit_struct_free (mb, klass, conv_arg);
5787 if (m->orig_conv_args [argnum]) {
5789 * If the native function changed the pointer, then free
5790 * the original structure plus the new pointer.
5792 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5793 mono_mb_emit_ldloc (mb, conv_arg);
5794 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5796 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5797 g_assert (m->orig_conv_args [argnum]);
5799 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5802 mono_mb_emit_ldloc (mb, conv_arg);
5803 mono_mb_emit_icall (mb, mono_marshal_free);
5805 mono_mb_patch_branch (mb, pos2);
5809 /* Free the original structure passed to native code */
5810 emit_struct_free (mb, klass, conv_arg);
5812 mono_mb_patch_branch (mb, pos);
5815 case MARSHAL_ACTION_PUSH:
5817 mono_mb_emit_ldloc_addr (mb, conv_arg);
5819 mono_mb_emit_ldloc (mb, conv_arg);
5822 case MARSHAL_ACTION_CONV_RESULT:
5823 if (klass->delegate) {
5824 g_assert (!t->byref);
5825 mono_mb_emit_stloc (mb, 0);
5826 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5827 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5828 mono_mb_emit_ldloc (mb, 0);
5829 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5830 mono_mb_emit_stloc (mb, 3);
5833 mono_mb_emit_stloc (mb, 0);
5835 /* Make a copy since emit_conv modifies local 0 */
5836 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5837 mono_mb_emit_ldloc (mb, 0);
5838 mono_mb_emit_stloc (mb, loc);
5840 mono_mb_emit_byte (mb, CEE_LDNULL);
5841 mono_mb_emit_stloc (mb, 3);
5843 mono_mb_emit_ldloc (mb, 0);
5844 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5846 /* allocate result object */
5848 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5849 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5850 mono_mb_emit_stloc (mb, 3);
5854 mono_mb_emit_ldloc (mb, 3);
5855 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5856 mono_mb_emit_stloc (mb, 1);
5858 /* emit conversion code */
5859 emit_struct_conv (mb, klass, TRUE);
5861 emit_struct_free (mb, klass, loc);
5863 /* Free the pointer allocated by unmanaged code */
5864 mono_mb_emit_ldloc (mb, loc);
5865 mono_mb_emit_icall (mb, mono_marshal_free);
5866 mono_mb_patch_branch (mb, pos);
5870 case MARSHAL_ACTION_MANAGED_CONV_IN:
5871 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5873 if (klass->delegate) {
5874 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5875 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5876 mono_mb_emit_ldarg (mb, argnum);
5878 mono_mb_emit_byte (mb, CEE_LDIND_I);
5879 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5880 mono_mb_emit_stloc (mb, conv_arg);
5884 if (klass == mono_defaults.stringbuilder_class) {
5885 MonoMarshalNative encoding;
5887 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5890 g_assert (encoding == MONO_NATIVE_LPSTR);
5892 g_assert (!t->byref);
5893 g_assert (encoding != -1);
5895 mono_mb_emit_ldarg (mb, argnum);
5896 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5897 mono_mb_emit_stloc (mb, conv_arg);
5901 /* The class can not have an automatic layout */
5902 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5903 mono_mb_emit_auto_layout_exception (mb, klass);
5907 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5908 mono_mb_emit_byte (mb, CEE_LDNULL);
5909 mono_mb_emit_stloc (mb, conv_arg);
5914 mono_mb_emit_ldarg (mb, argnum);
5918 /* Check for NULL and raise an exception */
5919 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5921 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5923 mono_mb_patch_branch (mb, pos2);
5924 mono_mb_emit_ldarg (mb, argnum);
5925 mono_mb_emit_byte (mb, CEE_LDIND_I);
5928 mono_mb_emit_stloc (mb, 0);
5930 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5931 mono_mb_emit_stloc (mb, conv_arg);
5933 mono_mb_emit_ldloc (mb, 0);
5934 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5936 /* Create and set dst */
5937 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5938 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5939 mono_mb_emit_stloc (mb, conv_arg);
5940 mono_mb_emit_ldloc (mb, conv_arg);
5941 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5942 mono_mb_emit_stloc (mb, 1);
5944 /* emit valuetype conversion code */
5945 emit_struct_conv (mb, klass, TRUE);
5947 mono_mb_patch_branch (mb, pos);
5950 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5951 if (klass->delegate) {
5954 mono_mb_emit_ldarg (mb, argnum);
5955 mono_mb_emit_ldloc (mb, conv_arg);
5956 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5957 mono_mb_emit_byte (mb, stind_op);
5963 /* Check for null */
5964 mono_mb_emit_ldloc (mb, conv_arg);
5965 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5966 mono_mb_emit_ldarg (mb, argnum);
5967 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5968 mono_mb_emit_byte (mb, CEE_STIND_REF);
5969 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5971 mono_mb_patch_branch (mb, pos);
5974 mono_mb_emit_ldloc (mb, conv_arg);
5975 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5976 mono_mb_emit_stloc (mb, 0);
5978 /* Allocate and set dest */
5979 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5980 mono_mb_emit_byte (mb, CEE_CONV_I);
5981 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5982 mono_mb_emit_stloc (mb, 1);
5984 /* Update argument pointer */
5985 mono_mb_emit_ldarg (mb, argnum);
5986 mono_mb_emit_ldloc (mb, 1);
5987 mono_mb_emit_byte (mb, CEE_STIND_I);
5989 /* emit valuetype conversion code */
5990 emit_struct_conv (mb, klass, FALSE);
5992 mono_mb_patch_branch (mb, pos2);
5993 } else if (klass == mono_defaults.stringbuilder_class) {
5994 // FIXME: What to do here ?
5996 /* byval [Out] marshalling */
5998 /* FIXME: Handle null */
6001 mono_mb_emit_ldloc (mb, conv_arg);
6002 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6003 mono_mb_emit_stloc (mb, 0);
6006 mono_mb_emit_ldarg (mb, argnum);
6007 mono_mb_emit_stloc (mb, 1);
6009 /* emit valuetype conversion code */
6010 emit_struct_conv (mb, klass, FALSE);
6014 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6015 if (klass->delegate) {
6016 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6017 mono_mb_emit_stloc (mb, 3);
6021 /* The class can not have an automatic layout */
6022 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6023 mono_mb_emit_auto_layout_exception (mb, klass);
6027 mono_mb_emit_stloc (mb, 0);
6028 /* Check for null */
6029 mono_mb_emit_ldloc (mb, 0);
6030 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6031 mono_mb_emit_byte (mb, CEE_LDNULL);
6032 mono_mb_emit_stloc (mb, 3);
6033 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6035 mono_mb_patch_branch (mb, pos);
6038 mono_mb_emit_ldloc (mb, 0);
6039 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6040 mono_mb_emit_stloc (mb, 0);
6042 /* Allocate and set dest */
6043 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6044 mono_mb_emit_byte (mb, CEE_CONV_I);
6045 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6046 mono_mb_emit_byte (mb, CEE_DUP);
6047 mono_mb_emit_stloc (mb, 1);
6048 mono_mb_emit_stloc (mb, 3);
6050 emit_struct_conv (mb, klass, FALSE);
6052 mono_mb_patch_branch (mb, pos2);
6056 g_assert_not_reached ();
6067 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6068 MonoMarshalSpec *spec,
6069 int conv_arg, MonoType **conv_arg_type,
6070 MarshalAction action)
6072 MonoMethodBuilder *mb = m->mb;
6073 static MonoMethod *get_object_for_native_variant = NULL;
6074 static MonoMethod *get_native_variant_for_object = NULL;
6076 if (!get_object_for_native_variant)
6077 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6078 g_assert (get_object_for_native_variant);
6080 if (!get_native_variant_for_object)
6081 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6082 g_assert (get_native_variant_for_object);
6085 case MARSHAL_ACTION_CONV_IN: {
6086 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6089 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6091 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6093 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6096 mono_mb_emit_ldarg (mb, argnum);
6098 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6099 mono_mb_emit_ldloc_addr (mb, conv_arg);
6100 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6104 case MARSHAL_ACTION_CONV_OUT: {
6105 static MonoMethod *variant_clear = NULL;
6108 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6109 g_assert (variant_clear);
6112 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6113 mono_mb_emit_ldarg (mb, argnum);
6114 mono_mb_emit_ldloc_addr (mb, conv_arg);
6115 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6116 mono_mb_emit_byte (mb, CEE_STIND_REF);
6119 mono_mb_emit_ldloc_addr (mb, conv_arg);
6120 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6124 case MARSHAL_ACTION_PUSH:
6126 mono_mb_emit_ldloc_addr (mb, conv_arg);
6128 mono_mb_emit_ldloc (mb, conv_arg);
6131 case MARSHAL_ACTION_CONV_RESULT: {
6132 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6133 mono_mb_emit_exception_marshal_directive (mb, msg);
6137 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6138 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6141 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6143 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6145 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6149 mono_mb_emit_ldarg (mb, argnum);
6151 mono_mb_emit_ldarg_addr (mb, argnum);
6152 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6153 mono_mb_emit_stloc (mb, conv_arg);
6157 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6158 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6159 mono_mb_emit_ldloc (mb, conv_arg);
6160 mono_mb_emit_ldarg (mb, argnum);
6161 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6166 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6167 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6168 mono_mb_emit_exception_marshal_directive (mb, msg);
6173 g_assert_not_reached ();
6179 #endif /* DISABLE_COM */
6180 #endif /* DISABLE_JIT */
6183 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6185 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6186 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6188 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6190 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6202 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6203 MonoMarshalSpec *spec,
6204 int conv_arg, MonoType **conv_arg_type,
6205 MarshalAction action)
6209 case MARSHAL_ACTION_CONV_IN:
6210 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6212 case MARSHAL_ACTION_MANAGED_CONV_IN:
6213 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6217 MonoMethodBuilder *mb = m->mb;
6218 MonoClass *klass = mono_class_from_mono_type (t);
6219 gboolean need_convert, need_free;
6220 MonoMarshalNative encoding;
6222 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6225 case MARSHAL_ACTION_CONV_IN:
6226 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6227 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6229 if (klass->element_class->blittable) {
6230 mono_mb_emit_ldarg (mb, argnum);
6232 mono_mb_emit_byte (mb, CEE_LDIND_I);
6233 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6234 mono_mb_emit_stloc (mb, conv_arg);
6237 guint32 label1, label2, label3;
6238 int index_var, src_var, dest_ptr, esize;
6239 MonoMarshalConv conv;
6240 gboolean is_string = FALSE;
6242 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6244 eklass = klass->element_class;
6246 if (eklass == mono_defaults.string_class) {
6248 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6250 else if (eklass == mono_defaults.stringbuilder_class) {
6252 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6255 conv = MONO_MARSHAL_CONV_INVALID;
6257 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6258 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6259 mono_mb_emit_exception_marshal_directive (mb, msg);
6263 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6264 mono_mb_emit_ldarg (mb, argnum);
6266 mono_mb_emit_byte (mb, CEE_LDIND_I);
6267 mono_mb_emit_stloc (mb, src_var);
6270 mono_mb_emit_ldloc (mb, src_var);
6271 mono_mb_emit_stloc (mb, conv_arg);
6272 mono_mb_emit_ldloc (mb, src_var);
6273 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6276 esize = sizeof (gpointer);
6277 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6278 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6280 esize = mono_class_native_size (eklass, NULL);
6282 /* allocate space for the native struct and store the address */
6283 mono_mb_emit_icon (mb, esize);
6284 mono_mb_emit_ldloc (mb, src_var);
6285 mono_mb_emit_byte (mb, CEE_LDLEN);
6287 if (eklass == mono_defaults.string_class) {
6288 /* Make the array bigger for the terminating null */
6289 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6290 mono_mb_emit_byte (mb, CEE_ADD);
6292 mono_mb_emit_byte (mb, CEE_MUL);
6293 mono_mb_emit_byte (mb, CEE_PREFIX1);
6294 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6295 mono_mb_emit_stloc (mb, conv_arg);
6297 mono_mb_emit_ldloc (mb, conv_arg);
6298 mono_mb_emit_stloc (mb, dest_ptr);
6300 /* Emit marshalling loop */
6301 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6302 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6303 mono_mb_emit_stloc (mb, index_var);
6304 label2 = mono_mb_get_label (mb);
6305 mono_mb_emit_ldloc (mb, index_var);
6306 mono_mb_emit_ldloc (mb, src_var);
6307 mono_mb_emit_byte (mb, CEE_LDLEN);
6308 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6310 /* Emit marshalling code */
6314 mono_mb_emit_ldloc (mb, dest_ptr);
6315 mono_mb_emit_ldloc (mb, src_var);
6316 mono_mb_emit_ldloc (mb, index_var);
6317 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6318 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6319 mono_mb_emit_byte (mb, stind_op);
6321 /* set the src_ptr */
6322 mono_mb_emit_ldloc (mb, src_var);
6323 mono_mb_emit_ldloc (mb, index_var);
6324 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6325 mono_mb_emit_stloc (mb, 0);
6328 mono_mb_emit_ldloc (mb, dest_ptr);
6329 mono_mb_emit_stloc (mb, 1);
6331 /* emit valuetype conversion code */
6332 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6335 mono_mb_emit_add_to_local (mb, index_var, 1);
6336 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6338 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6340 mono_mb_patch_branch (mb, label3);
6342 if (eklass == mono_defaults.string_class) {
6343 /* Null terminate */
6344 mono_mb_emit_ldloc (mb, dest_ptr);
6345 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6346 mono_mb_emit_byte (mb, CEE_STIND_REF);
6349 mono_mb_patch_branch (mb, label1);
6354 case MARSHAL_ACTION_CONV_OUT:
6355 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6356 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);
6357 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6360 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6361 int param_num = spec->data.array_data.param_num;
6362 MonoType *param_type;
6364 param_type = m->sig->params [param_num];
6366 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6367 char *msg = g_strdup ("Not implemented.");
6368 mono_mb_emit_exception_marshal_directive (mb, msg);
6373 mono_mb_emit_ldarg (mb, argnum);
6375 /* Create the managed array */
6376 mono_mb_emit_ldarg (mb, param_num);
6377 if (m->sig->params [param_num]->byref)
6378 // FIXME: Support other types
6379 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6380 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6381 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6382 /* Store into argument */
6383 mono_mb_emit_byte (mb, CEE_STIND_REF);
6387 if (need_convert || need_free) {
6388 /* FIXME: Optimize blittable case */
6390 guint32 label1, label2, label3;
6391 int index_var, src_ptr, loc, esize;
6393 eklass = klass->element_class;
6394 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6395 esize = sizeof (gpointer);
6396 else if (eklass == mono_defaults.char_class)
6397 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6399 esize = mono_class_native_size (eklass, NULL);
6400 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6401 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6404 mono_mb_emit_ldarg (mb, argnum);
6406 mono_mb_emit_byte (mb, CEE_LDIND_I);
6407 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6409 mono_mb_emit_ldloc (mb, conv_arg);
6410 mono_mb_emit_stloc (mb, src_ptr);
6412 /* Emit marshalling loop */
6413 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6414 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6415 mono_mb_emit_stloc (mb, index_var);
6416 label2 = mono_mb_get_label (mb);
6417 mono_mb_emit_ldloc (mb, index_var);
6418 mono_mb_emit_ldarg (mb, argnum);
6420 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6421 mono_mb_emit_byte (mb, CEE_LDLEN);
6422 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6424 /* Emit marshalling code */
6426 if (eklass == mono_defaults.stringbuilder_class) {
6427 gboolean need_free2;
6428 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6430 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6433 mono_mb_emit_ldarg (mb, argnum);
6435 mono_mb_emit_byte (mb, CEE_LDIND_I);
6436 mono_mb_emit_ldloc (mb, index_var);
6437 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6440 mono_mb_emit_ldloc (mb, src_ptr);
6441 mono_mb_emit_byte (mb, CEE_LDIND_I);
6443 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6447 mono_mb_emit_ldloc (mb, src_ptr);
6448 mono_mb_emit_byte (mb, CEE_LDIND_I);
6450 mono_mb_emit_icall (mb, mono_marshal_free);
6453 else if (eklass == mono_defaults.string_class) {
6456 mono_mb_emit_ldloc (mb, src_ptr);
6457 mono_mb_emit_byte (mb, CEE_LDIND_I);
6459 mono_mb_emit_icall (mb, mono_marshal_free);
6464 /* set the src_ptr */
6465 mono_mb_emit_ldloc (mb, src_ptr);
6466 mono_mb_emit_stloc (mb, 0);
6469 mono_mb_emit_ldarg (mb, argnum);
6471 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6472 mono_mb_emit_ldloc (mb, index_var);
6473 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6474 mono_mb_emit_stloc (mb, 1);
6476 /* emit valuetype conversion code */
6477 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6481 mono_mb_emit_ldloc (mb, src_ptr);
6482 mono_mb_emit_stloc (mb, loc);
6483 mono_mb_emit_ldloc (mb, loc);
6485 emit_struct_free (mb, eklass, loc);
6489 mono_mb_emit_add_to_local (mb, index_var, 1);
6490 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6492 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6494 mono_mb_patch_branch (mb, label1);
6495 mono_mb_patch_branch (mb, label3);
6498 if (klass->element_class->blittable) {
6499 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6501 mono_mb_emit_ldarg (mb, argnum);
6503 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6504 mono_mb_emit_ldloc (mb, conv_arg);
6505 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6510 case MARSHAL_ACTION_PUSH:
6512 mono_mb_emit_ldloc_addr (mb, conv_arg);
6514 mono_mb_emit_ldloc (mb, conv_arg);
6517 case MARSHAL_ACTION_CONV_RESULT:
6518 /* fixme: we need conversions here */
6519 mono_mb_emit_stloc (mb, 3);
6522 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6524 guint32 label1, label2, label3;
6525 int index_var, src_ptr, esize, param_num, num_elem;
6526 MonoMarshalConv conv;
6527 gboolean is_string = FALSE;
6529 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6530 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6533 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6534 mono_mb_emit_exception_marshal_directive (mb, msg);
6538 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6539 mono_mb_emit_exception_marshal_directive (mb, msg);
6542 if (spec->native != MONO_NATIVE_LPARRAY) {
6543 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6544 mono_mb_emit_exception_marshal_directive (mb, msg);
6548 /* FIXME: t is from the method which is wrapped, not the delegate type */
6549 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6551 param_num = spec->data.array_data.param_num;
6552 num_elem = spec->data.array_data.num_elem;
6553 if (spec->data.array_data.elem_mult == 0)
6554 /* param_num is not specified */
6557 if (param_num == -1) {
6558 if (num_elem <= 0) {
6559 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6560 mono_mb_emit_exception_marshal_directive (mb, msg);
6565 /* FIXME: Optimize blittable case */
6567 eklass = klass->element_class;
6568 if (eklass == mono_defaults.string_class) {
6570 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6572 else if (eklass == mono_defaults.stringbuilder_class) {
6574 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6577 conv = MONO_MARSHAL_CONV_INVALID;
6579 mono_marshal_load_type_info (eklass);
6582 esize = sizeof (gpointer);
6584 esize = mono_class_native_size (eklass, NULL);
6585 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6587 mono_mb_emit_byte (mb, CEE_LDNULL);
6588 mono_mb_emit_stloc (mb, conv_arg);
6590 /* Check param index */
6591 if (param_num != -1) {
6592 if (param_num >= m->sig->param_count) {
6593 char *msg = g_strdup ("Array size control parameter index is out of range.");
6594 mono_mb_emit_exception_marshal_directive (mb, msg);
6597 switch (m->sig->params [param_num]->type) {
6610 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6611 mono_mb_emit_exception_marshal_directive (mb, msg);
6618 mono_mb_emit_ldarg (mb, argnum);
6619 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6621 mono_mb_emit_ldarg (mb, argnum);
6622 mono_mb_emit_stloc (mb, src_ptr);
6624 /* Create managed array */
6626 * The LPArray marshalling spec says that sometimes param_num starts
6627 * from 1, sometimes it starts from 0. But MS seems to allways start
6631 if (param_num == -1) {
6632 mono_mb_emit_icon (mb, num_elem);
6634 mono_mb_emit_ldarg (mb, param_num);
6636 mono_mb_emit_icon (mb, num_elem);
6637 mono_mb_emit_byte (mb, CEE_ADD);
6639 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6642 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6643 mono_mb_emit_stloc (mb, conv_arg);
6645 if (eklass->blittable) {
6646 mono_mb_emit_ldloc (mb, conv_arg);
6647 mono_mb_emit_byte (mb, CEE_CONV_I);
6648 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6649 mono_mb_emit_byte (mb, CEE_ADD);
6650 mono_mb_emit_ldarg (mb, argnum);
6651 mono_mb_emit_ldloc (mb, conv_arg);
6652 mono_mb_emit_byte (mb, CEE_LDLEN);
6653 mono_mb_emit_icon (mb, esize);
6654 mono_mb_emit_byte (mb, CEE_MUL);
6655 mono_mb_emit_byte (mb, CEE_PREFIX1);
6656 mono_mb_emit_byte (mb, CEE_CPBLK);
6660 /* Emit marshalling loop */
6661 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6662 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6663 mono_mb_emit_stloc (mb, index_var);
6664 label2 = mono_mb_get_label (mb);
6665 mono_mb_emit_ldloc (mb, index_var);
6666 mono_mb_emit_ldloc (mb, conv_arg);
6667 mono_mb_emit_byte (mb, CEE_LDLEN);
6668 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6670 /* Emit marshalling code */
6672 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6674 mono_mb_emit_ldloc (mb, conv_arg);
6675 mono_mb_emit_ldloc (mb, index_var);
6677 mono_mb_emit_ldloc (mb, src_ptr);
6678 mono_mb_emit_byte (mb, CEE_LDIND_I);
6680 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6681 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6684 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6685 mono_mb_emit_exception_marshal_directive (mb, msg);
6689 mono_mb_emit_add_to_local (mb, index_var, 1);
6690 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6692 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6694 mono_mb_patch_branch (mb, label1);
6695 mono_mb_patch_branch (mb, label3);
6699 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6701 guint32 label1, label2, label3;
6702 int index_var, dest_ptr, esize, param_num, num_elem;
6703 MonoMarshalConv conv;
6704 gboolean is_string = FALSE;
6707 /* Already handled in CONV_IN */
6710 /* These are already checked in CONV_IN */
6711 g_assert (!t->byref);
6712 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6713 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6715 param_num = spec->data.array_data.param_num;
6716 num_elem = spec->data.array_data.num_elem;
6718 if (spec->data.array_data.elem_mult == 0)
6719 /* param_num is not specified */
6722 if (param_num == -1) {
6723 if (num_elem <= 0) {
6724 g_assert_not_reached ();
6728 /* FIXME: Optimize blittable case */
6730 eklass = klass->element_class;
6731 if (eklass == mono_defaults.string_class) {
6733 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6735 else if (eklass == mono_defaults.stringbuilder_class) {
6737 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6740 conv = MONO_MARSHAL_CONV_INVALID;
6742 mono_marshal_load_type_info (eklass);
6745 esize = sizeof (gpointer);
6747 esize = mono_class_native_size (eklass, NULL);
6749 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6752 mono_mb_emit_ldloc (mb, conv_arg);
6753 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6755 mono_mb_emit_ldarg (mb, argnum);
6756 mono_mb_emit_stloc (mb, dest_ptr);
6758 if (eklass->blittable) {
6760 mono_mb_emit_ldarg (mb, argnum);
6762 mono_mb_emit_ldloc (mb, conv_arg);
6763 mono_mb_emit_byte (mb, CEE_CONV_I);
6764 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6765 mono_mb_emit_byte (mb, CEE_ADD);
6767 mono_mb_emit_ldloc (mb, conv_arg);
6768 mono_mb_emit_byte (mb, CEE_LDLEN);
6769 mono_mb_emit_icon (mb, esize);
6770 mono_mb_emit_byte (mb, CEE_MUL);
6771 mono_mb_emit_byte (mb, CEE_PREFIX1);
6772 mono_mb_emit_byte (mb, CEE_CPBLK);
6776 /* Emit marshalling loop */
6777 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6778 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6779 mono_mb_emit_stloc (mb, index_var);
6780 label2 = mono_mb_get_label (mb);
6781 mono_mb_emit_ldloc (mb, index_var);
6782 mono_mb_emit_ldloc (mb, conv_arg);
6783 mono_mb_emit_byte (mb, CEE_LDLEN);
6784 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6786 /* Emit marshalling code */
6789 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6792 mono_mb_emit_ldloc (mb, dest_ptr);
6795 mono_mb_emit_ldloc (mb, conv_arg);
6796 mono_mb_emit_ldloc (mb, index_var);
6798 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6800 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6801 mono_mb_emit_byte (mb, stind_op);
6804 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6805 mono_mb_emit_exception_marshal_directive (mb, msg);
6809 mono_mb_emit_add_to_local (mb, index_var, 1);
6810 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6812 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6814 mono_mb_patch_branch (mb, label1);
6815 mono_mb_patch_branch (mb, label3);
6819 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6821 guint32 label1, label2, label3;
6822 int index_var, src, dest, esize;
6823 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6824 gboolean is_string = FALSE;
6826 g_assert (!t->byref);
6828 eklass = klass->element_class;
6830 mono_marshal_load_type_info (eklass);
6832 if (eklass == mono_defaults.string_class) {
6834 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6837 g_assert_not_reached ();
6841 esize = sizeof (gpointer);
6842 else if (eklass == mono_defaults.char_class)
6843 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6845 esize = mono_class_native_size (eklass, NULL);
6847 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6848 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6850 mono_mb_emit_stloc (mb, src);
6851 mono_mb_emit_ldloc (mb, src);
6852 mono_mb_emit_stloc (mb, 3);
6854 /* Check for null */
6855 mono_mb_emit_ldloc (mb, src);
6856 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6858 /* Allocate native array */
6859 mono_mb_emit_icon (mb, esize);
6860 mono_mb_emit_ldloc (mb, src);
6861 mono_mb_emit_byte (mb, CEE_LDLEN);
6863 if (eklass == mono_defaults.string_class) {
6864 /* Make the array bigger for the terminating null */
6865 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6866 mono_mb_emit_byte (mb, CEE_ADD);
6868 mono_mb_emit_byte (mb, CEE_MUL);
6869 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6870 mono_mb_emit_stloc (mb, dest);
6871 mono_mb_emit_ldloc (mb, dest);
6872 mono_mb_emit_stloc (mb, 3);
6874 /* Emit marshalling loop */
6875 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6876 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6877 mono_mb_emit_stloc (mb, index_var);
6878 label2 = mono_mb_get_label (mb);
6879 mono_mb_emit_ldloc (mb, index_var);
6880 mono_mb_emit_ldloc (mb, src);
6881 mono_mb_emit_byte (mb, CEE_LDLEN);
6882 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6884 /* Emit marshalling code */
6887 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6890 mono_mb_emit_ldloc (mb, dest);
6893 mono_mb_emit_ldloc (mb, src);
6894 mono_mb_emit_ldloc (mb, index_var);
6896 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6898 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6899 mono_mb_emit_byte (mb, stind_op);
6902 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6903 mono_mb_emit_exception_marshal_directive (mb, msg);
6907 mono_mb_emit_add_to_local (mb, index_var, 1);
6908 mono_mb_emit_add_to_local (mb, dest, esize);
6910 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6912 mono_mb_patch_branch (mb, label3);
6913 mono_mb_patch_branch (mb, label1);
6917 g_assert_not_reached ();
6924 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6927 return &mono_defaults.int32_class->byval_arg;
6929 switch (spec->native) {
6930 case MONO_NATIVE_I1:
6931 case MONO_NATIVE_U1:
6932 return &mono_defaults.byte_class->byval_arg;
6933 case MONO_NATIVE_VARIANTBOOL:
6934 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6935 return &mono_defaults.int16_class->byval_arg;
6936 case MONO_NATIVE_BOOLEAN:
6937 return &mono_defaults.int32_class->byval_arg;
6939 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6940 return &mono_defaults.int32_class->byval_arg;
6946 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6948 MonoClass* conv_arg_class = mono_defaults.int32_class;
6950 switch (spec->native) {
6951 case MONO_NATIVE_I1:
6952 case MONO_NATIVE_U1:
6953 conv_arg_class = mono_defaults.byte_class;
6954 if (ldop) *ldop = CEE_LDIND_I1;
6956 case MONO_NATIVE_VARIANTBOOL:
6957 conv_arg_class = mono_defaults.int16_class;
6958 if (ldop) *ldop = CEE_LDIND_I2;
6960 case MONO_NATIVE_BOOLEAN:
6963 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6966 return conv_arg_class;
6970 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6971 MonoMarshalSpec *spec,
6972 int conv_arg, MonoType **conv_arg_type,
6973 MarshalAction action)
6977 case MARSHAL_ACTION_CONV_IN:
6979 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6981 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6984 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6985 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6987 *conv_arg_type = &conv_arg_class->this_arg;
6989 *conv_arg_type = &conv_arg_class->byval_arg;
6995 MonoMethodBuilder *mb = m->mb;
6998 case MARSHAL_ACTION_CONV_IN: {
6999 MonoType *local_type;
7001 guint8 ldc_op = CEE_LDC_I4_1;
7003 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7005 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7007 *conv_arg_type = local_type;
7008 conv_arg = mono_mb_add_local (mb, local_type);
7010 mono_mb_emit_ldarg (mb, argnum);
7012 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7013 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7014 mono_mb_emit_byte (mb, ldc_op);
7015 mono_mb_emit_stloc (mb, conv_arg);
7016 mono_mb_patch_branch (mb, label_false);
7021 case MARSHAL_ACTION_CONV_OUT:
7023 int label_false, label_end;
7027 mono_mb_emit_ldarg (mb, argnum);
7028 mono_mb_emit_ldloc (mb, conv_arg);
7030 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7031 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7033 label_end = mono_mb_emit_branch (mb, CEE_BR);
7034 mono_mb_patch_branch (mb, label_false);
7035 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7036 mono_mb_patch_branch (mb, label_end);
7038 mono_mb_emit_byte (mb, CEE_STIND_I1);
7042 case MARSHAL_ACTION_PUSH:
7044 mono_mb_emit_ldloc_addr (mb, conv_arg);
7046 mono_mb_emit_ldloc (mb, conv_arg);
7048 mono_mb_emit_ldarg (mb, argnum);
7051 case MARSHAL_ACTION_CONV_RESULT:
7052 /* maybe we need to make sure that it fits within 8 bits */
7053 mono_mb_emit_stloc (mb, 3);
7056 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7057 MonoClass* conv_arg_class = mono_defaults.int32_class;
7058 guint8 ldop = CEE_LDIND_I4;
7059 int label_null, label_false;
7061 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7062 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7065 *conv_arg_type = &conv_arg_class->this_arg;
7067 *conv_arg_type = &conv_arg_class->byval_arg;
7070 mono_mb_emit_ldarg (mb, argnum);
7074 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7075 mono_mb_emit_ldarg (mb, argnum);
7076 mono_mb_emit_byte (mb, ldop);
7080 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7081 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7082 mono_mb_emit_stloc (mb, conv_arg);
7083 mono_mb_patch_branch (mb, label_false);
7086 mono_mb_patch_branch (mb, label_null);
7090 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7091 guint8 stop = CEE_STIND_I4;
7092 guint8 ldc_op = CEE_LDC_I4_1;
7093 int label_null,label_false, label_end;;
7098 switch (spec->native) {
7099 case MONO_NATIVE_I1:
7100 case MONO_NATIVE_U1:
7101 stop = CEE_STIND_I1;
7103 case MONO_NATIVE_VARIANTBOOL:
7104 stop = CEE_STIND_I2;
7105 ldc_op = CEE_LDC_I4_M1;
7113 mono_mb_emit_ldarg (mb, argnum);
7114 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7116 mono_mb_emit_ldarg (mb, argnum);
7117 mono_mb_emit_ldloc (mb, conv_arg);
7119 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7120 mono_mb_emit_byte (mb, ldc_op);
7121 label_end = mono_mb_emit_branch (mb, CEE_BR);
7123 mono_mb_patch_branch (mb, label_false);
7124 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7125 mono_mb_patch_branch (mb, label_end);
7127 mono_mb_emit_byte (mb, stop);
7128 mono_mb_patch_branch (mb, label_null);
7133 g_assert_not_reached ();
7140 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7141 MonoMarshalSpec *spec, int conv_arg,
7142 MonoType **conv_arg_type, MarshalAction action)
7145 MonoMethodBuilder *mb = m->mb;
7148 case MARSHAL_ACTION_CONV_IN:
7149 /* MS seems to allow this in some cases, ie. bxc #158 */
7151 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7152 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7153 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7158 case MARSHAL_ACTION_PUSH:
7159 mono_mb_emit_ldarg (mb, argnum);
7162 case MARSHAL_ACTION_CONV_RESULT:
7163 /* no conversions necessary */
7164 mono_mb_emit_stloc (mb, 3);
7175 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7176 MonoMarshalSpec *spec, int conv_arg,
7177 MonoType **conv_arg_type, MarshalAction action)
7180 MonoMethodBuilder *mb = m->mb;
7183 case MARSHAL_ACTION_PUSH:
7184 /* fixme: dont know how to marshal that. We cant simply
7185 * convert it to a one byte UTF8 character, because an
7186 * unicode character may need more that one byte in UTF8 */
7187 mono_mb_emit_ldarg (mb, argnum);
7190 case MARSHAL_ACTION_CONV_RESULT:
7191 /* fixme: we need conversions here */
7192 mono_mb_emit_stloc (mb, 3);
7203 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7204 MonoMarshalSpec *spec, int conv_arg,
7205 MonoType **conv_arg_type, MarshalAction action)
7208 MonoMethodBuilder *mb = m->mb;
7211 case MARSHAL_ACTION_PUSH:
7212 mono_mb_emit_ldarg (mb, argnum);
7215 case MARSHAL_ACTION_CONV_RESULT:
7216 /* no conversions necessary */
7217 mono_mb_emit_stloc (mb, 3);
7228 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7229 MonoMarshalSpec *spec, int conv_arg,
7230 MonoType **conv_arg_type, MarshalAction action)
7232 /* Ensure that we have marshalling info for this param */
7233 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7235 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7236 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7238 if (spec && spec->native == MONO_NATIVE_ASANY)
7239 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7242 case MONO_TYPE_VALUETYPE:
7243 if (t->data.klass == mono_defaults.handleref_class)
7244 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7246 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7247 case MONO_TYPE_STRING:
7248 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7249 case MONO_TYPE_CLASS:
7250 case MONO_TYPE_OBJECT:
7251 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7252 if (spec && spec->native == MONO_NATIVE_STRUCT)
7253 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7256 #if !defined(DISABLE_COM)
7257 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7258 spec->native == MONO_NATIVE_IDISPATCH ||
7259 spec->native == MONO_NATIVE_INTERFACE))
7260 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7261 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7262 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7263 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7264 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7267 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7268 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7269 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7271 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7272 case MONO_TYPE_ARRAY:
7273 case MONO_TYPE_SZARRAY:
7274 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7275 case MONO_TYPE_BOOLEAN:
7276 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7278 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7279 case MONO_TYPE_CHAR:
7280 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7293 case MONO_TYPE_FNPTR:
7294 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7295 case MONO_TYPE_GENERICINST:
7296 if (mono_type_generic_inst_is_valuetype (t))
7297 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7299 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7307 * mono_marshal_emit_native_wrapper:
7308 * @image: the image to use for looking up custom marshallers
7309 * @sig: The signature of the native function
7310 * @piinfo: Marshalling information
7311 * @mspecs: Marshalling information
7312 * @aot: whenever the created method will be compiled by the AOT compiler
7313 * @method: if non-NULL, the pinvoke method to call
7314 * @check_exceptions: Whenever to check for pending exceptions after the native call
7315 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7317 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7320 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)
7322 EmitMarshalContext m;
7323 MonoMethodSignature *csig;
7325 int i, argnum, *tmp_locals;
7326 int type, param_shift = 0;
7327 int coop_gc_stack_dummy, coop_gc_var;
7329 memset (&m, 0, sizeof (m));
7334 /* we copy the signature, so that we can set pinvoke to 0 */
7336 /* The function address is passed as the first argument */
7337 g_assert (!sig->hasthis);
7340 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7348 /* we allocate local for use with emit_struct_conv() */
7349 /* allocate local 0 (pointer) src_ptr */
7350 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7351 /* allocate local 1 (pointer) dst_ptr */
7352 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7353 /* allocate local 2 (boolean) delete_old */
7354 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7356 /* delete_old = FALSE */
7357 mono_mb_emit_icon (mb, 0);
7358 mono_mb_emit_stloc (mb, 2);
7360 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7361 /* allocate local 3 to store the return value */
7362 mono_mb_add_local (mb, sig->ret);
7365 if (mono_threads_is_coop_enabled ()) {
7366 /* local 4, dummy local used to get a stack address for suspend funcs */
7367 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7368 /* local 5, the local to be used when calling the suspend funcs */
7369 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7373 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7375 * ret = method (...);
7377 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7384 if (MONO_TYPE_ISSTRUCT (sig->ret))
7385 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7387 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7388 /* Return type custom marshaling */
7390 * Since we can't determine the return type of the unmanaged function,
7391 * we assume it returns a pointer, and pass that pointer to
7392 * MarshalNativeToManaged.
7394 csig->ret = &mono_defaults.int_class->byval_arg;
7397 /* we first do all conversions */
7398 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7399 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7401 for (i = 0; i < sig->param_count; i ++) {
7402 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7405 // In coop mode need to register blocking state during native call
7406 if (mono_threads_is_coop_enabled ()) {
7407 // Perform an extra, early lookup of the function address, so any exceptions
7408 // potentially resulting from the lookup occur before entering blocking mode.
7409 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7410 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7411 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7412 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7415 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7416 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7417 mono_mb_emit_stloc (mb, coop_gc_var);
7420 /* push all arguments */
7423 mono_mb_emit_byte (mb, CEE_LDARG_0);
7425 for (i = 0; i < sig->param_count; i++) {
7426 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7429 /* call the native method */
7431 mono_mb_emit_byte (mb, CEE_LDARG_0);
7432 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7433 mono_mb_emit_byte (mb, CEE_LDIND_I);
7434 mono_mb_emit_calli (mb, csig);
7435 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7437 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7439 g_assert_not_reached ();
7443 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7444 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7445 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7446 mono_mb_emit_calli (mb, csig);
7448 mono_mb_emit_native_call (mb, csig, func);
7452 /* Set LastError if needed */
7453 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7455 static MonoMethodSignature *get_last_error_sig = NULL;
7456 if (!get_last_error_sig) {
7457 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7458 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7459 get_last_error_sig->pinvoke = 1;
7463 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7464 * clobber its value.
7466 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7467 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7469 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7473 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7474 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7475 mono_class_init (klass);
7476 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7477 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7478 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7479 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7480 mono_mb_emit_stloc (mb, m.vtaddr_var);
7484 /* Unblock before converting the result, since that can involve calls into the runtime */
7485 if (mono_threads_is_coop_enabled ()) {
7486 mono_mb_emit_ldloc (mb, coop_gc_var);
7487 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7488 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7491 /* convert the result */
7492 if (!sig->ret->byref) {
7493 MonoMarshalSpec *spec = mspecs [0];
7494 type = sig->ret->type;
7496 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7497 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7501 case MONO_TYPE_VOID:
7503 case MONO_TYPE_VALUETYPE:
7504 klass = sig->ret->data.klass;
7505 if (klass->enumtype) {
7506 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7509 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7523 case MONO_TYPE_FNPTR:
7524 case MONO_TYPE_STRING:
7525 case MONO_TYPE_CLASS:
7526 case MONO_TYPE_OBJECT:
7527 case MONO_TYPE_BOOLEAN:
7528 case MONO_TYPE_ARRAY:
7529 case MONO_TYPE_SZARRAY:
7530 case MONO_TYPE_CHAR:
7532 case MONO_TYPE_GENERICINST:
7533 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7535 case MONO_TYPE_TYPEDBYREF:
7537 g_warning ("return type 0x%02x unknown", sig->ret->type);
7538 g_assert_not_reached ();
7542 mono_mb_emit_stloc (mb, 3);
7546 * Need to call this after converting the result since MONO_VTADDR needs
7547 * to be adjacent to the call instruction.
7549 if (check_exceptions)
7550 emit_thread_interrupt_checkpoint (mb);
7552 /* we need to convert byref arguments back and free string arrays */
7553 for (i = 0; i < sig->param_count; i++) {
7554 MonoType *t = sig->params [i];
7555 MonoMarshalSpec *spec = mspecs [i + 1];
7557 argnum = i + param_shift;
7559 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7560 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7565 case MONO_TYPE_STRING:
7566 case MONO_TYPE_VALUETYPE:
7567 case MONO_TYPE_CLASS:
7568 case MONO_TYPE_OBJECT:
7569 case MONO_TYPE_SZARRAY:
7570 case MONO_TYPE_BOOLEAN:
7571 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7578 if (!MONO_TYPE_IS_VOID(sig->ret))
7579 mono_mb_emit_ldloc (mb, 3);
7581 mono_mb_emit_byte (mb, CEE_RET);
7583 #endif /* DISABLE_JIT */
7586 * mono_marshal_get_native_wrapper:
7587 * @method: The MonoMethod to wrap.
7588 * @check_exceptions: Whenever to check for pending exceptions
7590 * generates IL code for the pinvoke wrapper (the generated method
7591 * calls the unmanaged code in piinfo->addr)
7592 * The wrapper info for the wrapper is a WrapperInfo structure.
7595 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7597 MonoMethodSignature *sig, *csig;
7598 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7599 MonoMethodBuilder *mb;
7600 MonoMarshalSpec **mspecs;
7603 gboolean pinvoke = FALSE;
7606 const char *exc_class = "MissingMethodException";
7607 const char *exc_arg = NULL;
7610 g_assert (method != NULL);
7611 g_assert (mono_method_signature (method)->pinvoke);
7613 GHashTable **cache_ptr;
7616 if (check_exceptions)
7617 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7619 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7621 if (check_exceptions)
7622 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7624 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7627 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7629 if ((res = mono_marshal_find_in_cache (cache, method)))
7632 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7633 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7637 return mono_cominterop_get_native_wrapper (method);
7639 g_assert_not_reached ();
7643 sig = mono_method_signature (method);
7645 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7646 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7649 if (!piinfo->addr) {
7651 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7652 exc_arg = "Method contains unsupported native code";
7654 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7656 piinfo->addr = mono_lookup_internal_call (method);
7660 /* hack - redirect certain string constructors to CreateString */
7661 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7662 g_assert (!pinvoke);
7663 g_assert (method->string_ctor);
7664 g_assert (sig->hasthis);
7666 /* CreateString returns a value */
7667 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7668 csig->ret = &mono_defaults.string_class->byval_arg;
7672 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7673 if (!strcmp ("CreateString", res->name) &&
7674 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7677 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7678 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7680 /* create a wrapper to preserve .ctor in stack trace */
7681 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7684 mono_mb_emit_byte (mb, CEE_LDARG_0);
7685 for (i = 1; i <= csig->param_count; i++)
7686 mono_mb_emit_ldarg (mb, i);
7687 mono_mb_emit_managed_call (mb, res, NULL);
7688 mono_mb_emit_byte (mb, CEE_RET);
7691 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7692 info->d.string_ctor.method = method;
7694 /* use native_wrapper_cache because internal calls are looked up there */
7695 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7696 csig->param_count + 1, info, NULL);
7703 /* exception will be thrown */
7704 piinfo->addr = NULL;
7705 g_warning ("cannot find CreateString for .ctor");
7708 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7710 mb->method->save_lmf = 1;
7713 * In AOT mode and embedding scenarios, it is possible that the icall is not
7714 * registered in the runtime doing the AOT compilation.
7716 if (!piinfo->addr && !aot) {
7718 mono_mb_emit_exception (mb, exc_class, exc_arg);
7720 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7721 info->d.managed_to_native.method = method;
7723 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7725 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7726 csig->param_count + 16, info, NULL);
7732 /* internal calls: we simply push all arguments and call the method (no conversions) */
7733 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7735 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7737 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7739 /* hack - string constructors returns a value */
7740 if (method->string_ctor)
7741 csig->ret = &mono_defaults.string_class->byval_arg;
7748 * Add a null check since public icalls can be called with 'call' which
7749 * does no such check.
7751 mono_mb_emit_byte (mb, CEE_LDARG_0);
7752 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7753 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7754 mono_mb_patch_branch (mb, pos);
7756 mono_mb_emit_byte (mb, CEE_LDARG_0);
7759 for (i = 0; i < sig->param_count; i++)
7760 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7763 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7764 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7765 mono_mb_emit_calli (mb, csig);
7767 g_assert (piinfo->addr);
7768 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7770 if (check_exceptions)
7771 emit_thread_interrupt_checkpoint (mb);
7772 mono_mb_emit_byte (mb, CEE_RET);
7774 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7775 info->d.managed_to_native.method = method;
7777 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7779 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7788 g_assert (piinfo->addr);
7791 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7792 mono_method_get_marshal_info (method, mspecs);
7794 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7796 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7797 info->d.managed_to_native.method = method;
7799 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7801 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7806 for (i = sig->param_count; i >= 0; i--)
7808 mono_metadata_free_marshal_spec (mspecs [i]);
7812 /* mono_method_print_code (res); */
7818 * mono_marshal_get_native_func_wrapper:
7819 * @image: The image to use for memory allocation and for looking up custom marshallers.
7820 * @sig: The signature of the function
7821 * @func: The native function to wrap
7823 * Returns a wrapper method around native functions, similar to the pinvoke
7827 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7828 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7830 MonoMethodSignature *csig;
7832 SignaturePointerPair key, *new_key;
7833 MonoMethodBuilder *mb;
7842 // Generic types are not safe to place in MonoImage caches.
7843 g_assert (!sig->is_inflated);
7845 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7846 if ((res = mono_marshal_find_in_cache (cache, &key)))
7849 name = g_strdup_printf ("wrapper_native_%p", func);
7850 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7851 mb->method->save_lmf = 1;
7854 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7857 csig = mono_metadata_signature_dup_full (image, sig);
7860 new_key = g_new (SignaturePointerPair,1);
7861 new_key->sig = csig;
7862 new_key->pointer = func;
7864 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7870 mono_marshal_set_wrapper_info (res, NULL);
7876 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7880 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7882 MonoMethodSignature *sig, *csig;
7883 MonoMethodBuilder *mb;
7888 MonoMethodPInvoke mpiinfo;
7889 MonoMethodPInvoke *piinfo = &mpiinfo;
7890 MonoMarshalSpec **mspecs;
7891 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7892 MonoImage *image = invoke->klass->image;
7895 // FIXME: include UnmanagedFunctionPointerAttribute info
7898 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7900 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7902 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7905 memset (&mpiinfo, 0, sizeof (mpiinfo));
7906 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7908 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7909 mono_method_get_marshal_info (invoke, mspecs);
7910 /* Freed below so don't alloc from mempool */
7911 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7914 name = g_strdup_printf ("wrapper_aot_native");
7915 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7916 mb->method->save_lmf = 1;
7919 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7922 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7923 info->d.managed_to_native.method = invoke;
7925 g_assert (!sig->hasthis);
7926 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7928 res = mono_mb_create_and_cache_full (cache, invoke,
7929 mb, csig, csig->param_count + 16,
7933 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7935 mono_metadata_free_marshal_spec (mspecs [i]);
7943 * mono_marshal_emit_managed_wrapper:
7945 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7946 * the delegate which wraps the managed method to be called. For closed delegates,
7947 * it could have fewer parameters than the method it wraps.
7948 * THIS_LOC is the memory location where the target of the delegate is stored.
7951 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7954 MonoMethodSignature *sig, *csig;
7960 /* we first do all conversions */
7961 for (i = 0; i < sig->param_count; i ++) {
7962 MonoType *t = sig->params [i];
7965 case MONO_TYPE_OBJECT:
7966 case MONO_TYPE_CLASS:
7967 case MONO_TYPE_VALUETYPE:
7968 case MONO_TYPE_ARRAY:
7969 case MONO_TYPE_SZARRAY:
7970 case MONO_TYPE_STRING:
7971 case MONO_TYPE_BOOLEAN:
7972 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7976 if (!sig->ret->byref) {
7977 switch (sig->ret->type) {
7978 case MONO_TYPE_STRING:
7979 csig->ret = &mono_defaults.int_class->byval_arg;
7986 MonoMethodSignature *sig, *csig;
7987 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
7988 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
7989 int leave_try_pos, leave_catch_pos, ex_m1_pos;
7990 gboolean closed = FALSE;
7995 /* allocate local 0 (pointer) src_ptr */
7996 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7997 /* allocate local 1 (pointer) dst_ptr */
7998 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7999 /* allocate local 2 (boolean) delete_old */
8000 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8002 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8003 /* Closed delegate */
8004 g_assert (sig->param_count == invoke_sig->param_count + 1);
8006 /* Use a new signature without the first argument */
8007 sig = mono_metadata_signature_dup (sig);
8008 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8009 sig->param_count --;
8012 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8013 /* allocate local 3 to store the return value */
8014 mono_mb_add_local (mb, sig->ret);
8017 if (MONO_TYPE_ISSTRUCT (sig->ret))
8018 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8020 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8021 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8023 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8024 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8029 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8030 * mono_threads_attach_coop ();
8034 * ret = method (...);
8035 * } catch (Exception e) {
8036 * ex = mono_gchandle_new (e, false);
8038 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8039 * mono_threads_detach_coop ();
8042 * mono_marshal_ftnptr_eh_callback (ex);
8048 clauses = g_new0 (MonoExceptionClause, 2);
8050 clause_catch = &clauses [0];
8051 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8052 clause_catch->data.catch_class = mono_defaults.exception_class;
8054 clause_finally = &clauses [1];
8055 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8057 mono_mb_emit_icon (mb, 0);
8058 mono_mb_emit_stloc (mb, 2);
8060 mono_mb_emit_icon (mb, -1);
8061 mono_mb_emit_byte (mb, CEE_CONV_U4);
8062 mono_mb_emit_stloc (mb, ex_local);
8065 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8067 if (!mono_threads_is_coop_enabled ()) {
8068 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8069 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8071 /* mono_threads_attach_coop (); */
8072 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8073 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8074 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8075 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8076 mono_mb_emit_stloc (mb, attach_cookie_local);
8079 /* <interrupt check> */
8080 emit_thread_interrupt_checkpoint (mb);
8082 /* we first do all conversions */
8083 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8084 for (i = 0; i < sig->param_count; i ++) {
8085 MonoType *t = sig->params [i];
8088 case MONO_TYPE_OBJECT:
8089 case MONO_TYPE_CLASS:
8090 case MONO_TYPE_VALUETYPE:
8091 case MONO_TYPE_ARRAY:
8092 case MONO_TYPE_SZARRAY:
8093 case MONO_TYPE_STRING:
8094 case MONO_TYPE_BOOLEAN:
8095 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8105 if (target_handle) {
8106 mono_mb_emit_icon (mb, (gint32)target_handle);
8107 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8110 g_assert_not_reached ();
8112 } else if (closed) {
8113 mono_mb_emit_icon (mb, (gint32)target_handle);
8114 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8117 for (i = 0; i < sig->param_count; i++) {
8118 MonoType *t = sig->params [i];
8120 if (tmp_locals [i]) {
8122 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8124 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8127 mono_mb_emit_ldarg (mb, i);
8130 /* ret = method (...) */
8131 mono_mb_emit_managed_call (mb, method, NULL);
8133 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8134 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8135 mono_class_init (klass);
8136 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8137 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8138 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8139 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8140 mono_mb_emit_stloc (mb, m->vtaddr_var);
8144 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8145 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8146 } else if (!sig->ret->byref) {
8147 switch (sig->ret->type) {
8148 case MONO_TYPE_VOID:
8150 case MONO_TYPE_BOOLEAN:
8153 case MONO_TYPE_CHAR:
8165 case MONO_TYPE_OBJECT:
8166 mono_mb_emit_stloc (mb, 3);
8168 case MONO_TYPE_STRING:
8169 csig->ret = &mono_defaults.int_class->byval_arg;
8170 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8172 case MONO_TYPE_VALUETYPE:
8173 case MONO_TYPE_CLASS:
8174 case MONO_TYPE_SZARRAY:
8175 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8178 g_warning ("return type 0x%02x unknown", sig->ret->type);
8179 g_assert_not_reached ();
8182 mono_mb_emit_stloc (mb, 3);
8185 /* Convert byref arguments back */
8186 for (i = 0; i < sig->param_count; i ++) {
8187 MonoType *t = sig->params [i];
8188 MonoMarshalSpec *spec = mspecs [i + 1];
8190 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8191 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8193 else if (t->byref) {
8195 case MONO_TYPE_CLASS:
8196 case MONO_TYPE_VALUETYPE:
8197 case MONO_TYPE_OBJECT:
8198 case MONO_TYPE_STRING:
8199 case MONO_TYPE_BOOLEAN:
8200 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8206 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8207 /* The [Out] information is encoded in the delegate signature */
8209 case MONO_TYPE_SZARRAY:
8210 case MONO_TYPE_CLASS:
8211 case MONO_TYPE_VALUETYPE:
8212 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8215 g_assert_not_reached ();
8220 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8224 /* catch (Exception e) { */
8225 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8226 clause_catch->handler_offset = mono_mb_get_label (mb);
8228 mono_mb_emit_stloc (mb, e_local);
8230 /* ex = mono_gchandle_new (e, false); */
8231 mono_mb_emit_ldloc (mb, e_local);
8232 mono_mb_emit_icon (mb, 0);
8233 mono_mb_emit_icall (mb, mono_gchandle_new);
8234 mono_mb_emit_stloc (mb, ex_local);
8236 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8239 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8242 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8243 clause_finally->handler_offset = mono_mb_get_label (mb);
8245 if (!mono_threads_is_coop_enabled ()) {
8246 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8247 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8249 /* mono_threads_detach_coop (); */
8250 mono_mb_emit_ldloc (mb, attach_cookie_local);
8251 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8252 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8256 mono_mb_emit_ldloc (mb, ex_local);
8257 mono_mb_emit_icon (mb, -1);
8258 mono_mb_emit_byte (mb, CEE_CONV_U4);
8259 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8261 /* mono_marshal_ftnptr_eh_callback (ex) */
8262 mono_mb_emit_ldloc (mb, ex_local);
8263 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8266 mono_mb_patch_branch (mb, ex_m1_pos);
8268 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8270 /* } [endfinally] */
8271 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8273 mono_mb_patch_branch (mb, leave_try_pos);
8274 mono_mb_patch_branch (mb, leave_catch_pos);
8277 if (m->retobj_var) {
8278 mono_mb_emit_ldloc (mb, m->retobj_var);
8279 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8280 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8283 if (!MONO_TYPE_IS_VOID(sig->ret))
8284 mono_mb_emit_ldloc (mb, 3);
8285 mono_mb_emit_byte (mb, CEE_RET);
8288 mono_mb_set_clauses (mb, 2, clauses);
8296 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8298 MonoMethodSignature *sig;
8303 * Under windows, delegates passed to native code must use the STDCALL
8304 * calling convention.
8306 csig->call_convention = MONO_CALL_STDCALL;
8309 sig = mono_method_signature (method);
8311 /* Change default calling convention if needed */
8312 /* Why is this a modopt ? */
8313 if (sig->ret && sig->ret->num_mods) {
8314 for (i = 0; i < sig->ret->num_mods; ++i) {
8316 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8317 g_assert (mono_error_ok (&error));
8318 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8319 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8320 csig->call_convention = MONO_CALL_C;
8321 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8322 csig->call_convention = MONO_CALL_STDCALL;
8323 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8324 csig->call_convention = MONO_CALL_FASTCALL;
8325 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8326 csig->call_convention = MONO_CALL_THISCALL;
8333 * generates IL code to call managed methods from unmanaged code
8334 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8337 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8340 MonoMethodSignature *sig, *csig, *invoke_sig;
8341 MonoMethodBuilder *mb;
8342 MonoMethod *res, *invoke;
8343 MonoMarshalSpec **mspecs;
8344 MonoMethodPInvoke piinfo;
8347 EmitMarshalContext m;
8349 g_assert (method != NULL);
8350 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8353 * FIXME: Should cache the method+delegate type pair, since the same method
8354 * could be called with different delegates, thus different marshalling
8357 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8359 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8362 invoke = mono_get_delegate_invoke (delegate_klass);
8363 invoke_sig = mono_method_signature (invoke);
8365 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8366 mono_method_get_marshal_info (invoke, mspecs);
8368 sig = mono_method_signature (method);
8370 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8372 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8373 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8375 /* we copy the signature, so that we can modify it */
8377 /* Need to free this later */
8378 csig = mono_metadata_signature_dup (invoke_sig);
8380 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8384 memset (&m, 0, sizeof (m));
8390 m.image = method->klass->image;
8392 mono_marshal_set_callconv_from_modopt (invoke, csig);
8394 /* The attribute is only available in Net 2.0 */
8395 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8396 MonoCustomAttrInfo *cinfo;
8397 MonoCustomAttrEntry *attr;
8400 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8401 * contents of the attribute without constructing it, as that might not be
8402 * possible when running in cross-compiling mode.
8404 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8405 mono_error_assert_ok (&error);
8408 for (i = 0; i < cinfo->num_attrs; ++i) {
8409 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8410 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8411 attr = &cinfo->attrs [i];
8417 MonoArray *typed_args, *named_args;
8418 CattrNamedArg *arginfo;
8422 MonoBoolean set_last_error = 0;
8425 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8426 g_assert (mono_error_ok (&error));
8427 g_assert (mono_array_length (typed_args) == 1);
8430 o = mono_array_get (typed_args, MonoObject*, 0);
8431 call_conv = *(gint32*)mono_object_unbox (o);
8434 for (i = 0; i < mono_array_length (named_args); ++i) {
8435 CattrNamedArg *narg = &arginfo [i];
8437 o = mono_array_get (named_args, MonoObject*, i);
8439 g_assert (narg->field);
8440 if (!strcmp (narg->field->name, "CharSet")) {
8441 charset = *(gint32*)mono_object_unbox (o);
8442 } else if (!strcmp (narg->field->name, "SetLastError")) {
8443 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8444 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8445 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8446 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8447 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8449 g_assert_not_reached ();
8455 memset (&piinfo, 0, sizeof (piinfo));
8457 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8459 csig->call_convention = call_conv - 1;
8462 if (cinfo && !cinfo->cached)
8463 mono_custom_attrs_free (cinfo);
8466 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8468 if (!target_handle) {
8471 // FIXME: Associate it with the method+delegate_klass pair
8472 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8473 info->d.native_to_managed.method = method;
8474 info->d.native_to_managed.klass = delegate_klass;
8476 res = mono_mb_create_and_cache_full (cache, method,
8477 mb, csig, sig->param_count + 16,
8483 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8487 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8489 mono_metadata_free_marshal_spec (mspecs [i]);
8492 /* mono_method_print_code (res); */
8498 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8502 MonoMethodSignature *sig;
8503 MonoMethodBuilder *mb;
8508 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8510 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8513 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8514 MonoMethodSignature *csig;
8515 MonoMarshalSpec **mspecs;
8516 EmitMarshalContext m;
8518 sig = mono_method_signature (method);
8519 g_assert (!sig->hasthis);
8521 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8522 mono_method_get_marshal_info (method, mspecs);
8524 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8525 csig = mono_metadata_signature_dup_full (image, sig);
8529 memset (&m, 0, sizeof (m));
8537 mono_marshal_set_callconv_from_modopt (method, csig);
8539 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8541 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8546 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8549 for (i = sig->param_count; i >= 0; i--)
8551 mono_metadata_free_marshal_spec (mspecs [i]);
8554 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8555 mono_error_assert_ok (&error);
8556 return compiled_ptr;
8559 sig = mono_method_signature (method);
8560 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8562 param_count = sig->param_count + sig->hasthis;
8564 for (i = 0; i < param_count; i++)
8565 mono_mb_emit_ldarg (mb, i);
8567 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8568 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8570 mono_mb_emit_op (mb, CEE_CALL, method);
8571 mono_mb_emit_byte (mb, CEE_RET);
8576 method = mono_mb_create (mb, sig, param_count, NULL);
8579 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8580 mono_error_assert_ok (&error);
8581 return compiled_ptr;
8587 * The code directly following this is the cache hit, value positive branch
8589 * This function takes a new method builder with 0 locals and adds two locals
8590 * to create multiple out-branches and the fall through state of having the object
8591 * on the stack after a cache miss
8594 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8595 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8596 MonoMethodBuilder *mb)
8600 /* allocate local 0 (pointer) obj_vtable */
8601 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8602 /* allocate local 1 (pointer) cached_vtable */
8603 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8606 mono_mb_emit_ldarg (mb, obj_arg_position);
8607 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8609 /*obj_vtable = obj->vtable;*/
8610 mono_mb_emit_ldarg (mb, obj_arg_position);
8611 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8612 mono_mb_emit_byte (mb, CEE_LDIND_I);
8613 mono_mb_emit_stloc (mb, 0);
8615 /* cached_vtable = *cache*/
8616 mono_mb_emit_ldarg (mb, cache_arg_position);
8617 mono_mb_emit_byte (mb, CEE_LDIND_I);
8618 mono_mb_emit_stloc (mb, 1);
8620 mono_mb_emit_ldloc (mb, 1);
8621 mono_mb_emit_byte (mb, CEE_LDC_I4);
8622 mono_mb_emit_i4 (mb, ~0x1);
8623 mono_mb_emit_byte (mb, CEE_CONV_I);
8624 mono_mb_emit_byte (mb, CEE_AND);
8625 mono_mb_emit_ldloc (mb, 0);
8626 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8627 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8629 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8630 mono_mb_emit_ldloc (mb, 1);
8631 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8632 mono_mb_emit_byte (mb, CEE_CONV_U);
8633 mono_mb_emit_byte (mb, CEE_AND);
8634 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8635 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8638 mono_mb_patch_branch (mb, cache_miss_pos);
8641 mono_mb_emit_ldarg (mb, obj_arg_position);
8642 mono_mb_emit_ldarg (mb, class_arg_position);
8643 mono_mb_emit_ldarg (mb, cache_arg_position);
8644 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8647 #endif /* DISABLE_JIT */
8650 * This does the equivalent of mono_object_castclass_with_cache.
8651 * The wrapper info for the wrapper is a WrapperInfo structure.
8654 mono_marshal_get_castclass_with_cache (void)
8656 static MonoMethod *cached;
8658 MonoMethodBuilder *mb;
8659 MonoMethodSignature *sig;
8660 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8663 const int obj_arg_position = 0;
8664 const int class_arg_position = 1;
8665 const int cache_arg_position = 2;
8670 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8671 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8672 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8673 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8674 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8675 sig->ret = &mono_defaults.object_class->byval_arg;
8679 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8680 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8681 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8684 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8685 mono_mb_emit_ldarg (mb, obj_arg_position);
8686 mono_mb_emit_byte (mb, CEE_RET);
8689 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8690 mono_mb_patch_branch (mb, invalid_cast_pos);
8691 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8694 mono_mb_patch_branch (mb, return_null_pos);
8695 mono_mb_emit_byte (mb, CEE_LDNULL);
8696 mono_mb_emit_byte (mb, CEE_RET);
8697 #endif /* DISABLE_JIT */
8699 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8700 res = mono_mb_create (mb, sig, 8, info);
8703 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8704 mono_free_method (res);
8705 mono_metadata_free_method_signature (sig);
8712 /* this is an icall */
8714 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8717 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8718 if (mono_error_set_pending_exception (&error))
8721 #ifndef DISABLE_REMOTING
8722 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8726 uintptr_t cache_update = (uintptr_t)obj->vtable;
8728 cache_update = cache_update | 0x1;
8730 *cache = cache_update;
8736 * This does the equivalent of mono_object_isinst_with_cache.
8737 * The wrapper info for the wrapper is a WrapperInfo structure.
8740 mono_marshal_get_isinst_with_cache (void)
8742 static MonoMethod *cached;
8744 MonoMethodBuilder *mb;
8745 MonoMethodSignature *sig;
8746 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
8749 const int obj_arg_position = 0;
8750 const int class_arg_position = 1;
8751 const int cache_arg_position = 2;
8756 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
8757 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8759 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8761 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8763 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8764 sig->ret = &mono_defaults.object_class->byval_arg;
8768 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8769 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8770 // Return the object gotten via the slow path.
8771 mono_mb_emit_byte (mb, CEE_RET);
8774 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8775 mono_mb_patch_branch (mb, return_null_pos);
8776 mono_mb_emit_byte (mb, CEE_LDNULL);
8777 mono_mb_emit_byte (mb, CEE_RET);
8780 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8781 mono_mb_emit_ldarg (mb, obj_arg_position);
8782 mono_mb_emit_byte (mb, CEE_RET);
8785 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
8786 res = mono_mb_create (mb, sig, 8, info);
8789 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8790 mono_free_method (res);
8791 mono_metadata_free_method_signature (sig);
8799 * mono_marshal_get_isinst:
8800 * @klass: the type of the field
8802 * This method generates a function which can be used to check if an object is
8803 * an instance of the given type, icluding the case where the object is a proxy.
8804 * The generated function has the following signature:
8805 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8808 mono_marshal_get_isinst (MonoClass *klass)
8810 static MonoMethodSignature *isint_sig = NULL;
8814 int pos_was_ok, pos_end;
8815 #ifndef DISABLE_REMOTING
8816 int pos_end2, pos_failed;
8819 MonoMethodBuilder *mb;
8821 cache = get_cache (&klass->image->isinst_cache, mono_aligned_addr_hash, NULL);
8822 if ((res = mono_marshal_find_in_cache (cache, klass)))
8826 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8827 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8828 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8829 isint_sig->pinvoke = 0;
8832 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8833 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8836 mb->method->save_lmf = 1;
8839 /* check if the object is a proxy that needs special cast */
8840 mono_mb_emit_ldarg (mb, 0);
8841 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8842 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8844 /* The result of MONO_CISINST can be:
8845 0) the type check succeeded
8846 1) the type check did not succeed
8847 2) a CanCastTo call is needed */
8848 #ifndef DISABLE_REMOTING
8849 mono_mb_emit_byte (mb, CEE_DUP);
8850 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8852 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8853 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8855 /* get the real proxy from the transparent proxy*/
8857 mono_mb_emit_ldarg (mb, 0);
8858 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8859 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8863 mono_mb_patch_branch (mb, pos_failed);
8864 mono_mb_emit_byte (mb, CEE_LDNULL);
8865 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8869 mono_mb_patch_branch (mb, pos_was_ok);
8870 mono_mb_emit_byte (mb, CEE_POP);
8871 mono_mb_emit_ldarg (mb, 0);
8875 mono_mb_patch_branch (mb, pos_end);
8876 mono_mb_patch_branch (mb, pos_end2);
8877 mono_mb_emit_byte (mb, CEE_RET);
8879 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8883 mono_mb_emit_byte (mb, CEE_LDNULL);
8884 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8888 mono_mb_patch_branch (mb, pos_was_ok);
8889 mono_mb_emit_ldarg (mb, 0);
8893 mono_mb_patch_branch (mb, pos_end);
8894 mono_mb_emit_byte (mb, CEE_RET);
8895 #endif /* DISABLE_REMOTING */
8896 #endif /* DISABLE_JIT */
8898 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8899 info->d.proxy.klass = klass;
8900 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
8907 * mono_marshal_get_castclass:
8908 * @klass: the type of the field
8910 * This method generates a function which can be used to cast an object to
8911 * an instance of the given type, icluding the case where the object is a proxy.
8912 * The generated function has the following signature:
8913 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8914 * The wrapper info for the wrapper is a WrapperInfo structure.
8917 mono_marshal_get_castclass (MonoClass *klass)
8919 static MonoMethodSignature *castclass_sig = NULL;
8922 #ifndef DISABLE_REMOTING
8923 int pos_was_ok, pos_was_ok2;
8926 MonoMethodBuilder *mb;
8929 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8930 if ((res = mono_marshal_find_in_cache (cache, klass)))
8933 if (!castclass_sig) {
8934 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8935 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8936 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8937 castclass_sig->pinvoke = 0;
8940 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8941 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8944 mb->method->save_lmf = 1;
8947 /* check if the object is a proxy that needs special cast */
8948 mono_mb_emit_ldarg (mb, 0);
8949 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8950 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8952 /* The result of MONO_CCASTCLASS can be:
8953 0) the cast is valid
8954 1) cast of unknown proxy type
8955 or an exception if the cast is is invalid
8957 #ifndef DISABLE_REMOTING
8958 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8960 /* get the real proxy from the transparent proxy*/
8962 mono_mb_emit_ldarg (mb, 0);
8963 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8964 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8967 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8970 mono_mb_patch_branch (mb, pos_was_ok);
8971 mono_mb_patch_branch (mb, pos_was_ok2);
8973 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8974 mono_mb_emit_byte (mb, CEE_POP);
8975 #endif /* DISABLE_REMOTING */
8977 mono_mb_emit_ldarg (mb, 0);
8980 mono_mb_emit_byte (mb, CEE_RET);
8981 #endif /* DISABLE_JIT */
8983 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8985 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8993 * mono_marshal_get_struct_to_ptr:
8996 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8997 * The wrapper info for the wrapper is a WrapperInfo structure.
9000 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9002 MonoMethodBuilder *mb;
9003 static MonoMethod *stoptr = NULL;
9007 g_assert (klass != NULL);
9009 mono_marshal_load_type_info (klass);
9011 if (klass->marshal_info->str_to_ptr)
9012 return klass->marshal_info->str_to_ptr;
9015 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9018 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9021 if (klass->blittable) {
9022 mono_mb_emit_byte (mb, CEE_LDARG_1);
9023 mono_mb_emit_byte (mb, CEE_LDARG_0);
9024 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9025 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9026 mono_mb_emit_byte (mb, CEE_PREFIX1);
9027 mono_mb_emit_byte (mb, CEE_CPBLK);
9030 /* allocate local 0 (pointer) src_ptr */
9031 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9032 /* allocate local 1 (pointer) dst_ptr */
9033 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9034 /* allocate local 2 (boolean) delete_old */
9035 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9036 mono_mb_emit_byte (mb, CEE_LDARG_2);
9037 mono_mb_emit_stloc (mb, 2);
9039 /* initialize src_ptr to point to the start of object data */
9040 mono_mb_emit_byte (mb, CEE_LDARG_0);
9041 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9042 mono_mb_emit_stloc (mb, 0);
9044 /* initialize dst_ptr */
9045 mono_mb_emit_byte (mb, CEE_LDARG_1);
9046 mono_mb_emit_stloc (mb, 1);
9048 emit_struct_conv (mb, klass, FALSE);
9051 mono_mb_emit_byte (mb, CEE_RET);
9053 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9054 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9057 mono_marshal_lock ();
9058 if (!klass->marshal_info->str_to_ptr)
9059 klass->marshal_info->str_to_ptr = res;
9061 res = klass->marshal_info->str_to_ptr;
9062 mono_marshal_unlock ();
9067 * mono_marshal_get_ptr_to_struct:
9070 * generates IL code for PtrToStructure (IntPtr src, object structure)
9071 * The wrapper info for the wrapper is a WrapperInfo structure.
9074 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9076 MonoMethodBuilder *mb;
9077 static MonoMethodSignature *ptostr = NULL;
9081 g_assert (klass != NULL);
9083 mono_marshal_load_type_info (klass);
9085 if (klass->marshal_info->ptr_to_str)
9086 return klass->marshal_info->ptr_to_str;
9089 MonoMethodSignature *sig;
9091 /* Create the signature corresponding to
9092 static void PtrToStructure (IntPtr ptr, object structure);
9093 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9094 sig = mono_create_icall_signature ("void ptr object");
9095 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9097 mono_memory_barrier ();
9101 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9104 if (klass->blittable) {
9105 mono_mb_emit_byte (mb, CEE_LDARG_1);
9106 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9107 mono_mb_emit_byte (mb, CEE_LDARG_0);
9108 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9109 mono_mb_emit_byte (mb, CEE_PREFIX1);
9110 mono_mb_emit_byte (mb, CEE_CPBLK);
9113 /* allocate local 0 (pointer) src_ptr */
9114 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9115 /* allocate local 1 (pointer) dst_ptr */
9116 mono_mb_add_local (mb, &klass->this_arg);
9118 /* initialize src_ptr to point to the start of object data */
9119 mono_mb_emit_byte (mb, CEE_LDARG_0);
9120 mono_mb_emit_stloc (mb, 0);
9122 /* initialize dst_ptr */
9123 mono_mb_emit_byte (mb, CEE_LDARG_1);
9124 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9125 mono_mb_emit_stloc (mb, 1);
9127 emit_struct_conv (mb, klass, TRUE);
9130 mono_mb_emit_byte (mb, CEE_RET);
9132 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9133 res = mono_mb_create (mb, ptostr, 0, info);
9136 mono_marshal_lock ();
9137 if (!klass->marshal_info->ptr_to_str)
9138 klass->marshal_info->ptr_to_str = res;
9140 res = klass->marshal_info->ptr_to_str;
9141 mono_marshal_unlock ();
9146 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9147 * This is used to avoid infinite recursion since it is hard to determine where to
9148 * replace a method with its synchronized wrapper, and where not.
9149 * The runtime should execute METHOD instead of the wrapper.
9150 * The wrapper info for the wrapper is a WrapperInfo structure.
9153 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9155 MonoMethodBuilder *mb;
9157 MonoMethodSignature *sig;
9159 MonoGenericContext *ctx = NULL;
9160 MonoGenericContainer *container = NULL;
9162 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9163 ctx = &((MonoMethodInflated*)method)->context;
9164 method = ((MonoMethodInflated*)method)->declaring;
9165 container = mono_method_get_generic_container (method);
9167 container = method->klass->generic_container;
9168 g_assert (container);
9171 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9173 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9174 mono_mb_emit_byte (mb, CEE_RET);
9176 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9178 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9179 info->d.synchronized_inner.method = method;
9180 res = mono_mb_create (mb, sig, 0, info);
9184 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9185 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9191 * generates IL code for the synchronized wrapper: the generated method
9192 * calls METHOD while locking 'this' or the parent type.
9195 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9197 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9198 MonoMethodSignature *sig;
9199 MonoExceptionClause *clause;
9200 MonoMethodBuilder *mb;
9204 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9205 MonoGenericContext *ctx = NULL;
9206 MonoMethod *orig_method = NULL;
9207 MonoGenericContainer *container = NULL;
9211 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9214 /* FIXME: Support generic methods too */
9215 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9216 orig_method = method;
9217 ctx = &((MonoMethodInflated*)method)->context;
9218 method = ((MonoMethodInflated*)method)->declaring;
9219 container = mono_method_get_generic_container (method);
9221 container = method->klass->generic_container;
9222 g_assert (container);
9229 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9230 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9234 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9235 if ((res = mono_marshal_find_in_cache (cache, method)))
9239 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9242 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9244 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9245 info->d.synchronized.method = method;
9248 mb->skip_visibility = 1;
9250 if (!MONO_TYPE_IS_VOID (sig->ret))
9251 ret_local = mono_mb_add_local (mb, sig->ret);
9254 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9255 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9257 /* This will throw the type load exception when the wrapper is compiled */
9258 mono_mb_emit_byte (mb, CEE_LDNULL);
9259 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9260 mono_mb_emit_byte (mb, CEE_POP);
9262 if (!MONO_TYPE_IS_VOID (sig->ret))
9263 mono_mb_emit_ldloc (mb, ret_local);
9264 mono_mb_emit_byte (mb, CEE_RET);
9267 res = mono_mb_create_and_cache_full (cache, method,
9268 mb, sig, sig->param_count + 16, info, NULL);
9276 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9277 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9279 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9280 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9283 mono_marshal_lock ();
9285 if (!enter_method) {
9286 MonoMethodDesc *desc;
9288 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9289 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9290 g_assert (enter_method);
9291 mono_method_desc_free (desc);
9293 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9294 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9295 g_assert (exit_method);
9296 mono_method_desc_free (desc);
9298 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9299 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9300 g_assert (gettypefromhandle_method);
9301 mono_method_desc_free (desc);
9304 mono_marshal_unlock ();
9307 /* Push this or the type object */
9308 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9309 /* We have special handling for this in the JIT */
9310 int index = mono_mb_add_data (mb, method->klass);
9311 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9312 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9313 mono_mb_emit_i4 (mb, index);
9315 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9318 mono_mb_emit_ldarg (mb, 0);
9319 mono_mb_emit_stloc (mb, this_local);
9321 /* Call Monitor::Enter() */
9322 mono_mb_emit_ldloc (mb, this_local);
9323 mono_mb_emit_ldloc_addr (mb, taken_local);
9324 mono_mb_emit_managed_call (mb, enter_method, NULL);
9326 clause->try_offset = mono_mb_get_label (mb);
9328 /* Call the method */
9330 mono_mb_emit_ldarg (mb, 0);
9331 for (i = 0; i < sig->param_count; i++)
9332 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9336 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9337 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9339 mono_mb_emit_managed_call (mb, method, NULL);
9342 if (!MONO_TYPE_IS_VOID (sig->ret))
9343 mono_mb_emit_stloc (mb, ret_local);
9345 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9347 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9348 clause->handler_offset = mono_mb_get_label (mb);
9350 /* Call Monitor::Exit() if needed */
9351 mono_mb_emit_ldloc (mb, taken_local);
9352 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9353 mono_mb_emit_ldloc (mb, this_local);
9354 mono_mb_emit_managed_call (mb, exit_method, NULL);
9355 mono_mb_patch_branch (mb, pos2);
9356 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9358 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9360 mono_mb_patch_branch (mb, pos);
9361 if (!MONO_TYPE_IS_VOID (sig->ret))
9362 mono_mb_emit_ldloc (mb, ret_local);
9363 mono_mb_emit_byte (mb, CEE_RET);
9365 mono_mb_set_clauses (mb, 1, clause);
9370 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9371 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9373 res = mono_mb_create_and_cache_full (cache, method,
9374 mb, sig, sig->param_count + 16, info, NULL);
9383 * the returned method calls 'method' unboxing the this argument
9386 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9388 MonoMethodSignature *sig = mono_method_signature (method);
9390 MonoMethodBuilder *mb;
9395 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9397 if ((res = mono_marshal_find_in_cache (cache, method)))
9400 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9402 g_assert (sig->hasthis);
9405 mono_mb_emit_ldarg (mb, 0);
9406 mono_mb_emit_icon (mb, sizeof (MonoObject));
9407 mono_mb_emit_byte (mb, CEE_ADD);
9408 for (i = 0; i < sig->param_count; ++i)
9409 mono_mb_emit_ldarg (mb, i + 1);
9410 mono_mb_emit_managed_call (mb, method, NULL);
9411 mono_mb_emit_byte (mb, CEE_RET);
9414 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9415 info->d.unbox.method = method;
9417 res = mono_mb_create_and_cache_full (cache, method,
9418 mb, sig, sig->param_count + 16, info, NULL);
9421 /* mono_method_print_code (res); */
9427 STELEMREF_OBJECT, /*no check at all*/
9428 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9429 STELEMREF_CLASS, /*only the klass->parents check*/
9430 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9431 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9432 STELEMREF_KIND_COUNT
9435 static const char *strelemref_wrapper_name[] = {
9436 "object", "sealed_class", "class", "interface", "complex"
9440 is_monomorphic_array (MonoClass *klass)
9442 MonoClass *element_class;
9443 if (klass->rank != 1)
9446 element_class = klass->element_class;
9447 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9451 get_virtual_stelemref_kind (MonoClass *element_class)
9453 if (element_class == mono_defaults.object_class)
9454 return STELEMREF_OBJECT;
9455 if (is_monomorphic_array (element_class))
9456 return STELEMREF_SEALED_CLASS;
9457 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9458 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9459 #ifdef COMPRESSED_INTERFACE_BITMAP
9460 return STELEMREF_COMPLEX;
9462 return STELEMREF_INTERFACE;
9464 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9465 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9466 return STELEMREF_COMPLEX;
9467 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9468 return STELEMREF_SEALED_CLASS;
9469 return STELEMREF_CLASS;
9475 load_array_element_address (MonoMethodBuilder *mb)
9477 mono_mb_emit_ldarg (mb, 0);
9478 mono_mb_emit_ldarg (mb, 1);
9479 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9483 load_array_class (MonoMethodBuilder *mb, int aklass)
9485 mono_mb_emit_ldarg (mb, 0);
9486 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9487 mono_mb_emit_byte (mb, CEE_LDIND_I);
9488 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9489 mono_mb_emit_byte (mb, CEE_LDIND_I);
9490 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9491 mono_mb_emit_byte (mb, CEE_LDIND_I);
9492 mono_mb_emit_stloc (mb, aklass);
9496 load_value_class (MonoMethodBuilder *mb, int vklass)
9498 mono_mb_emit_ldarg (mb, 2);
9499 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9500 mono_mb_emit_byte (mb, CEE_LDIND_I);
9501 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9502 mono_mb_emit_byte (mb, CEE_LDIND_I);
9503 mono_mb_emit_stloc (mb, vklass);
9509 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9511 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9512 printf ("slow vstore of %s\n", name);
9518 * The wrapper info for the wrapper is a WrapperInfo structure.
9521 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9522 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9523 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9524 * - Add a case for arrays of arrays.
9527 get_virtual_stelemref_wrapper (int kind)
9529 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9530 static MonoMethodSignature *signature;
9531 MonoMethodBuilder *mb;
9534 const char *param_names [16];
9536 int aklass, vklass, vtable, uiid;
9537 int array_slot_addr;
9540 if (cached_methods [kind])
9541 return cached_methods [kind];
9543 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9544 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9548 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9550 /* void this::stelemref (size_t idx, void* value) */
9551 sig->ret = &mono_defaults.void_class->byval_arg;
9552 sig->hasthis = TRUE;
9553 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9554 sig->params [1] = &mono_defaults.object_class->byval_arg;
9559 param_names [0] = "index";
9560 param_names [1] = "value";
9561 mono_mb_set_param_names (mb, param_names);
9563 /*For now simply call plain old stelemref*/
9565 case STELEMREF_OBJECT:
9566 /* ldelema (implicit bound check) */
9567 load_array_element_address (mb);
9569 mono_mb_emit_ldarg (mb, 2);
9570 mono_mb_emit_byte (mb, CEE_STIND_REF);
9571 mono_mb_emit_byte (mb, CEE_RET);
9574 case STELEMREF_COMPLEX:
9576 <ldelema (bound check)>
9579 if (!mono_object_isinst (value, aklass))
9583 *array_slot_addr = value;
9586 throw new ArrayTypeMismatchException ();
9589 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9590 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9594 /*Use this to debug/record stores that are going thru the slow path*/
9595 MonoMethodSignature *csig;
9596 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9597 csig->ret = &mono_defaults.void_class->byval_arg;
9598 csig->params [0] = &mono_defaults.object_class->byval_arg;
9599 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9600 csig->params [2] = &mono_defaults.object_class->byval_arg;
9601 mono_mb_emit_ldarg (mb, 0);
9602 mono_mb_emit_ldarg (mb, 1);
9603 mono_mb_emit_ldarg (mb, 2);
9604 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9608 /* ldelema (implicit bound check) */
9609 load_array_element_address (mb);
9610 mono_mb_emit_stloc (mb, array_slot_addr);
9612 /* if (!value) goto do_store */
9613 mono_mb_emit_ldarg (mb, 2);
9614 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9616 /* aklass = array->vtable->klass->element_class */
9617 load_array_class (mb, aklass);
9619 /*if (mono_object_isinst (value, aklass)) */
9620 mono_mb_emit_ldarg (mb, 2);
9621 mono_mb_emit_ldloc (mb, aklass);
9622 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9623 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9626 mono_mb_patch_branch (mb, b1);
9627 mono_mb_emit_ldloc (mb, array_slot_addr);
9628 mono_mb_emit_ldarg (mb, 2);
9629 mono_mb_emit_byte (mb, CEE_STIND_REF);
9630 mono_mb_emit_byte (mb, CEE_RET);
9633 mono_mb_patch_branch (mb, b2);
9635 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9638 case STELEMREF_SEALED_CLASS:
9640 <ldelema (bound check)>
9644 aklass = array->vtable->klass->element_class;
9645 vklass = value->vtable->klass;
9647 if (vklass != aklass)
9651 *array_slot_addr = value;
9654 throw new ArrayTypeMismatchException ();
9656 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9657 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9658 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9661 /* ldelema (implicit bound check) */
9662 load_array_element_address (mb);
9663 mono_mb_emit_stloc (mb, array_slot_addr);
9665 /* if (!value) goto do_store */
9666 mono_mb_emit_ldarg (mb, 2);
9667 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9669 /* aklass = array->vtable->klass->element_class */
9670 load_array_class (mb, aklass);
9672 /* vklass = value->vtable->klass */
9673 load_value_class (mb, vklass);
9675 /*if (vklass != aklass) goto do_exception; */
9676 mono_mb_emit_ldloc (mb, aklass);
9677 mono_mb_emit_ldloc (mb, vklass);
9678 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9681 mono_mb_patch_branch (mb, b1);
9682 mono_mb_emit_ldloc (mb, array_slot_addr);
9683 mono_mb_emit_ldarg (mb, 2);
9684 mono_mb_emit_byte (mb, CEE_STIND_REF);
9685 mono_mb_emit_byte (mb, CEE_RET);
9688 mono_mb_patch_branch (mb, b2);
9689 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9692 case STELEMREF_CLASS:
9695 <ldelema (bound check)>
9699 aklass = array->vtable->klass->element_class;
9700 vklass = value->vtable->klass;
9702 if (vklass->idepth < aklass->idepth)
9705 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9709 *array_slot_addr = value;
9713 throw new ArrayTypeMismatchException ();
9715 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9716 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9717 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9719 /* ldelema (implicit bound check) */
9720 load_array_element_address (mb);
9721 mono_mb_emit_stloc (mb, array_slot_addr);
9723 /* if (!value) goto do_store */
9724 mono_mb_emit_ldarg (mb, 2);
9725 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9727 /* aklass = array->vtable->klass->element_class */
9728 load_array_class (mb, aklass);
9730 /* vklass = value->vtable->klass */
9731 load_value_class (mb, vklass);
9733 /*if (mono_object_isinst (value, aklass)) */
9734 mono_mb_emit_ldarg (mb, 2);
9735 mono_mb_emit_ldloc (mb, aklass);
9736 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9737 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9739 /* if (vklass->idepth < aklass->idepth) goto failue */
9740 mono_mb_emit_ldloc (mb, vklass);
9741 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9742 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9744 mono_mb_emit_ldloc (mb, aklass);
9745 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9746 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9748 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9750 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9751 mono_mb_emit_ldloc (mb, vklass);
9752 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9753 mono_mb_emit_byte (mb, CEE_LDIND_I);
9755 mono_mb_emit_ldloc (mb, aklass);
9756 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9757 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9758 mono_mb_emit_icon (mb, 1);
9759 mono_mb_emit_byte (mb, CEE_SUB);
9760 mono_mb_emit_icon (mb, sizeof (void*));
9761 mono_mb_emit_byte (mb, CEE_MUL);
9762 mono_mb_emit_byte (mb, CEE_ADD);
9763 mono_mb_emit_byte (mb, CEE_LDIND_I);
9765 mono_mb_emit_ldloc (mb, aklass);
9766 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9769 mono_mb_patch_branch (mb, b1);
9770 mono_mb_emit_ldloc (mb, array_slot_addr);
9771 mono_mb_emit_ldarg (mb, 2);
9772 mono_mb_emit_byte (mb, CEE_STIND_REF);
9773 mono_mb_emit_byte (mb, CEE_RET);
9776 mono_mb_patch_branch (mb, b2);
9777 mono_mb_patch_branch (mb, b3);
9779 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9782 case STELEMREF_INTERFACE:
9789 klass = array->obj.vtable->klass->element_class;
9791 uiid = klass->interface_id;
9792 if (uiid > vt->max_interface_id)
9794 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9797 mono_array_setref (array, index, value);
9800 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9802 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9803 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9804 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9805 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9807 /* ldelema (implicit bound check) */
9808 load_array_element_address (mb);
9809 mono_mb_emit_stloc (mb, array_slot_addr);
9811 /* if (!value) goto do_store */
9812 mono_mb_emit_ldarg (mb, 2);
9813 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9815 /* klass = array->vtable->klass->element_class */
9816 load_array_class (mb, aklass);
9818 /* vt = value->vtable */
9819 mono_mb_emit_ldarg (mb, 2);
9820 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9821 mono_mb_emit_byte (mb, CEE_LDIND_I);
9822 mono_mb_emit_stloc (mb, vtable);
9824 /* uiid = klass->interface_id; */
9825 mono_mb_emit_ldloc (mb, aklass);
9826 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9827 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9828 mono_mb_emit_stloc (mb, uiid);
9830 /*if (uiid > vt->max_interface_id)*/
9831 mono_mb_emit_ldloc (mb, uiid);
9832 mono_mb_emit_ldloc (mb, vtable);
9833 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9834 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9835 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9837 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9839 /*vt->interface_bitmap*/
9840 mono_mb_emit_ldloc (mb, vtable);
9841 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9842 mono_mb_emit_byte (mb, CEE_LDIND_I);
9845 mono_mb_emit_ldloc (mb, uiid);
9846 mono_mb_emit_icon (mb, 3);
9847 mono_mb_emit_byte (mb, CEE_SHR_UN);
9849 /*vt->interface_bitmap [(uiid) >> 3]*/
9850 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9851 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9853 /*(1 << ((uiid)&7)))*/
9854 mono_mb_emit_icon (mb, 1);
9855 mono_mb_emit_ldloc (mb, uiid);
9856 mono_mb_emit_icon (mb, 7);
9857 mono_mb_emit_byte (mb, CEE_AND);
9858 mono_mb_emit_byte (mb, CEE_SHL);
9860 /*bitwise and the whole thing*/
9861 mono_mb_emit_byte (mb, CEE_AND);
9862 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9865 mono_mb_patch_branch (mb, b1);
9866 mono_mb_emit_ldloc (mb, array_slot_addr);
9867 mono_mb_emit_ldarg (mb, 2);
9868 mono_mb_emit_byte (mb, CEE_STIND_REF);
9869 mono_mb_emit_byte (mb, CEE_RET);
9872 mono_mb_patch_branch (mb, b2);
9873 mono_mb_patch_branch (mb, b3);
9874 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9878 mono_mb_emit_ldarg (mb, 0);
9879 mono_mb_emit_ldarg (mb, 1);
9880 mono_mb_emit_ldarg (mb, 2);
9881 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9882 mono_mb_emit_byte (mb, CEE_RET);
9885 #endif /* DISABLE_JIT */
9886 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9887 info->d.virtual_stelemref.kind = kind;
9888 res = mono_mb_create (mb, signature, 4, info);
9889 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9891 mono_marshal_lock ();
9892 if (!cached_methods [kind]) {
9893 cached_methods [kind] = res;
9894 mono_marshal_unlock ();
9896 mono_marshal_unlock ();
9897 mono_free_method (res);
9901 return cached_methods [kind];
9905 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9909 g_assert (array_class->rank == 1);
9910 kind = get_virtual_stelemref_kind (array_class->element_class);
9912 return get_virtual_stelemref_wrapper (kind);
9916 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9921 *nwrappers = STELEMREF_KIND_COUNT;
9922 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9923 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9924 res [i] = get_virtual_stelemref_wrapper (i);
9929 * The wrapper info for the wrapper is a WrapperInfo structure.
9932 mono_marshal_get_stelemref (void)
9934 static MonoMethod* ret = NULL;
9935 MonoMethodSignature *sig;
9936 MonoMethodBuilder *mb;
9939 guint32 b1, b2, b3, b4;
9942 int array_slot_addr;
9947 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9950 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9952 /* void stelemref (void* array, int idx, void* value) */
9953 sig->ret = &mono_defaults.void_class->byval_arg;
9954 sig->params [0] = &mono_defaults.object_class->byval_arg;
9955 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9956 sig->params [2] = &mono_defaults.object_class->byval_arg;
9959 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9960 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9961 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9965 <ldelema (bound check)>
9969 aklass = array->vtable->klass->element_class;
9970 vklass = value->vtable->klass;
9972 if (vklass->idepth < aklass->idepth)
9975 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9979 *array_slot_addr = value;
9983 if (mono_object_isinst (value, aklass))
9986 throw new ArrayTypeMismatchException ();
9989 /* ldelema (implicit bound check) */
9990 mono_mb_emit_ldarg (mb, 0);
9991 mono_mb_emit_ldarg (mb, 1);
9992 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9993 mono_mb_emit_stloc (mb, array_slot_addr);
9995 /* if (!value) goto do_store */
9996 mono_mb_emit_ldarg (mb, 2);
9997 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9999 /* aklass = array->vtable->klass->element_class */
10000 mono_mb_emit_ldarg (mb, 0);
10001 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10002 mono_mb_emit_byte (mb, CEE_LDIND_I);
10003 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10004 mono_mb_emit_byte (mb, CEE_LDIND_I);
10005 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10006 mono_mb_emit_byte (mb, CEE_LDIND_I);
10007 mono_mb_emit_stloc (mb, aklass);
10009 /* vklass = value->vtable->klass */
10010 mono_mb_emit_ldarg (mb, 2);
10011 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10012 mono_mb_emit_byte (mb, CEE_LDIND_I);
10013 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10014 mono_mb_emit_byte (mb, CEE_LDIND_I);
10015 mono_mb_emit_stloc (mb, vklass);
10017 /* if (vklass->idepth < aklass->idepth) goto failue */
10018 mono_mb_emit_ldloc (mb, vklass);
10019 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10020 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10022 mono_mb_emit_ldloc (mb, aklass);
10023 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10024 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10026 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10028 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10029 mono_mb_emit_ldloc (mb, vklass);
10030 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10031 mono_mb_emit_byte (mb, CEE_LDIND_I);
10033 mono_mb_emit_ldloc (mb, aklass);
10034 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10035 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10036 mono_mb_emit_icon (mb, 1);
10037 mono_mb_emit_byte (mb, CEE_SUB);
10038 mono_mb_emit_icon (mb, sizeof (void*));
10039 mono_mb_emit_byte (mb, CEE_MUL);
10040 mono_mb_emit_byte (mb, CEE_ADD);
10041 mono_mb_emit_byte (mb, CEE_LDIND_I);
10043 mono_mb_emit_ldloc (mb, aklass);
10045 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10047 copy_pos = mono_mb_get_label (mb);
10049 mono_mb_patch_branch (mb, b1);
10050 mono_mb_emit_ldloc (mb, array_slot_addr);
10051 mono_mb_emit_ldarg (mb, 2);
10052 mono_mb_emit_byte (mb, CEE_STIND_REF);
10054 mono_mb_emit_byte (mb, CEE_RET);
10057 mono_mb_patch_branch (mb, b2);
10058 mono_mb_patch_branch (mb, b3);
10060 mono_mb_emit_ldarg (mb, 2);
10061 mono_mb_emit_ldloc (mb, aklass);
10062 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10064 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10065 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10066 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10068 mono_mb_emit_byte (mb, CEE_RET);
10070 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10071 ret = mono_mb_create (mb, sig, 4, info);
10078 * mono_marshal_get_gsharedvt_in_wrapper:
10080 * This wrapper handles calls from normal code to gsharedvt code.
10082 * The wrapper info for the wrapper is a WrapperInfo structure.
10085 mono_marshal_get_gsharedvt_in_wrapper (void)
10087 static MonoMethod* ret = NULL;
10088 MonoMethodSignature *sig;
10089 MonoMethodBuilder *mb;
10095 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10097 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10098 sig->ret = &mono_defaults.void_class->byval_arg;
10100 #ifndef DISABLE_JIT
10102 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10104 mono_mb_emit_byte (mb, CEE_RET);
10106 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10107 ret = mono_mb_create (mb, sig, 4, info);
10114 * mono_marshal_get_gsharedvt_out_wrapper:
10116 * This wrapper handles calls from gsharedvt code to normal code.
10118 * The wrapper info for the wrapper is a WrapperInfo structure.
10121 mono_marshal_get_gsharedvt_out_wrapper (void)
10123 static MonoMethod* ret = NULL;
10124 MonoMethodSignature *sig;
10125 MonoMethodBuilder *mb;
10131 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10133 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10134 sig->ret = &mono_defaults.void_class->byval_arg;
10136 #ifndef DISABLE_JIT
10138 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10140 mono_mb_emit_byte (mb, CEE_RET);
10142 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10143 ret = mono_mb_create (mb, sig, 4, info);
10152 MonoMethod *method;
10155 /* LOCKING: vars accessed under the marshal lock */
10156 static ArrayElemAddr *elem_addr_cache = NULL;
10157 static int elem_addr_cache_size = 0;
10158 static int elem_addr_cache_next = 0;
10161 * mono_marshal_get_array_address:
10162 * @rank: rank of the array type
10163 * @elem_size: size in bytes of an element of an array.
10165 * Returns a MonoMethod that implements the code to get the address
10166 * of an element in a multi-dimenasional array of @rank dimensions.
10167 * The returned method takes an array as the first argument and then
10168 * @rank indexes for the @rank dimensions.
10169 * If ELEM_SIZE is 0, read the array size from the array object.
10172 mono_marshal_get_array_address (int rank, int elem_size)
10175 MonoMethodBuilder *mb;
10176 MonoMethodSignature *sig;
10179 int i, bounds, ind, realidx;
10180 int branch_pos, *branch_positions;
10184 mono_marshal_lock ();
10185 for (i = 0; i < elem_addr_cache_next; ++i) {
10186 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10187 ret = elem_addr_cache [i].method;
10191 mono_marshal_unlock ();
10195 branch_positions = g_new0 (int, rank);
10197 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10199 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10200 sig->ret = &mono_defaults.int_class->byval_arg;
10201 sig->params [0] = &mono_defaults.object_class->byval_arg;
10202 for (i = 0; i < rank; ++i) {
10203 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10206 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10207 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10210 #ifndef DISABLE_JIT
10211 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10212 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10213 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10215 /* bounds = array->bounds; */
10216 mono_mb_emit_ldarg (mb, 0);
10217 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10218 mono_mb_emit_byte (mb, CEE_LDIND_I);
10219 mono_mb_emit_stloc (mb, bounds);
10221 /* ind is the overall element index, realidx is the partial index in a single dimension */
10222 /* ind = idx0 - bounds [0].lower_bound */
10223 mono_mb_emit_ldarg (mb, 1);
10224 mono_mb_emit_ldloc (mb, bounds);
10225 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10226 mono_mb_emit_byte (mb, CEE_ADD);
10227 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10228 mono_mb_emit_byte (mb, CEE_SUB);
10229 mono_mb_emit_stloc (mb, ind);
10230 /* if (ind >= bounds [0].length) goto exeception; */
10231 mono_mb_emit_ldloc (mb, ind);
10232 mono_mb_emit_ldloc (mb, bounds);
10233 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10234 mono_mb_emit_byte (mb, CEE_ADD);
10235 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10236 /* note that we use unsigned comparison */
10237 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10239 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10240 * We could also decide to ignore the passed elem_size and get it
10241 * from the array object, to reduce the number of methods we generate:
10242 * the additional cost is 3 memory loads and a non-immediate mul.
10244 for (i = 1; i < rank; ++i) {
10245 /* realidx = idxi - bounds [i].lower_bound */
10246 mono_mb_emit_ldarg (mb, 1 + i);
10247 mono_mb_emit_ldloc (mb, bounds);
10248 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10249 mono_mb_emit_byte (mb, CEE_ADD);
10250 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10251 mono_mb_emit_byte (mb, CEE_SUB);
10252 mono_mb_emit_stloc (mb, realidx);
10253 /* if (realidx >= bounds [i].length) goto exeception; */
10254 mono_mb_emit_ldloc (mb, realidx);
10255 mono_mb_emit_ldloc (mb, bounds);
10256 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10257 mono_mb_emit_byte (mb, CEE_ADD);
10258 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10259 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10260 /* ind = ind * bounds [i].length + realidx */
10261 mono_mb_emit_ldloc (mb, ind);
10262 mono_mb_emit_ldloc (mb, bounds);
10263 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10264 mono_mb_emit_byte (mb, CEE_ADD);
10265 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10266 mono_mb_emit_byte (mb, CEE_MUL);
10267 mono_mb_emit_ldloc (mb, realidx);
10268 mono_mb_emit_byte (mb, CEE_ADD);
10269 mono_mb_emit_stloc (mb, ind);
10272 /* return array->vector + ind * element_size */
10273 mono_mb_emit_ldarg (mb, 0);
10274 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10275 mono_mb_emit_ldloc (mb, ind);
10277 mono_mb_emit_icon (mb, elem_size);
10279 /* Load arr->vtable->klass->sizes.element_class */
10280 mono_mb_emit_ldarg (mb, 0);
10281 mono_mb_emit_byte (mb, CEE_CONV_I);
10282 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10283 mono_mb_emit_byte (mb, CEE_ADD);
10284 mono_mb_emit_byte (mb, CEE_LDIND_I);
10285 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10286 mono_mb_emit_byte (mb, CEE_ADD);
10287 mono_mb_emit_byte (mb, CEE_LDIND_I);
10288 /* sizes is an union, so this reads sizes.element_size */
10289 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10290 mono_mb_emit_byte (mb, CEE_ADD);
10291 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10293 mono_mb_emit_byte (mb, CEE_MUL);
10294 mono_mb_emit_byte (mb, CEE_ADD);
10295 mono_mb_emit_byte (mb, CEE_RET);
10297 /* patch the branches to get here and throw */
10298 for (i = 1; i < rank; ++i) {
10299 mono_mb_patch_branch (mb, branch_positions [i]);
10301 mono_mb_patch_branch (mb, branch_pos);
10302 /* throw exception */
10303 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10305 g_free (branch_positions);
10306 #endif /* DISABLE_JIT */
10308 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10309 info->d.element_addr.rank = rank;
10310 info->d.element_addr.elem_size = elem_size;
10311 ret = mono_mb_create (mb, sig, 4, info);
10314 /* cache the result */
10316 mono_marshal_lock ();
10317 for (i = 0; i < elem_addr_cache_next; ++i) {
10318 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10319 /* FIXME: free ret */
10320 ret = elem_addr_cache [i].method;
10326 if (elem_addr_cache_next >= elem_addr_cache_size) {
10327 int new_size = elem_addr_cache_size + 4;
10328 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10329 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10330 g_free (elem_addr_cache);
10331 elem_addr_cache = new_array;
10332 elem_addr_cache_size = new_size;
10334 elem_addr_cache [elem_addr_cache_next].rank = rank;
10335 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10336 elem_addr_cache [elem_addr_cache_next].method = ret;
10337 elem_addr_cache_next ++;
10339 mono_marshal_unlock ();
10344 * mono_marshal_get_array_accessor_wrapper:
10346 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10349 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10351 MonoMethodSignature *sig;
10352 MonoMethodBuilder *mb;
10356 MonoGenericContext *ctx = NULL;
10357 MonoMethod *orig_method = NULL;
10358 MonoGenericContainer *container = NULL;
10362 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10363 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10364 * FIXME: Use generic methods.
10371 g_assert_not_reached ();
10373 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10374 if ((res = mono_marshal_find_in_cache (cache, method)))
10378 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10381 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10383 #ifndef DISABLE_JIT
10384 /* Call the method */
10386 mono_mb_emit_ldarg (mb, 0);
10387 for (i = 0; i < sig->param_count; i++)
10388 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10392 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10393 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10395 mono_mb_emit_managed_call (mb, method, NULL);
10397 mono_mb_emit_byte (mb, CEE_RET);
10400 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10401 info->d.array_accessor.method = method;
10405 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10406 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10408 res = mono_mb_create_and_cache_full (cache, method,
10409 mb, sig, sig->param_count + 16,
10418 mono_marshal_alloc (gulong size, MonoError *error)
10422 mono_error_init (error);
10425 res = CoTaskMemAlloc (size);
10427 res = g_try_malloc ((gulong)size);
10429 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10434 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10436 ves_icall_marshal_alloc (gulong size)
10439 void *ret = mono_marshal_alloc (size, &error);
10440 if (!mono_error_ok (&error)) {
10441 mono_error_set_pending_exception (&error);
10449 mono_marshal_free (gpointer ptr)
10452 CoTaskMemFree (ptr);
10459 mono_marshal_free_array (gpointer *ptr, int size)
10466 for (i = 0; i < size; i++)
10472 mono_marshal_string_to_utf16 (MonoString *s)
10474 return s ? mono_string_chars (s) : NULL;
10477 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10479 mono_marshal_string_to_utf16_copy (MonoString *s)
10485 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10486 if (!mono_error_ok (&error)) {
10487 mono_error_set_pending_exception (&error);
10490 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10491 res [mono_string_length (s)] = 0;
10497 * mono_marshal_set_last_error:
10499 * This function is invoked to set the last error value from a P/Invoke call
10500 * which has SetLastError set.
10503 mono_marshal_set_last_error (void)
10506 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10508 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10513 mono_marshal_set_last_error_windows (int error)
10516 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10521 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10522 gpointer dest, gint32 length)
10527 MONO_CHECK_ARG_NULL (src,);
10528 MONO_CHECK_ARG_NULL (dest,);
10530 if (src->obj.vtable->klass->rank != 1) {
10531 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10534 if (start_index < 0) {
10535 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10539 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10542 if (start_index + length > mono_array_length (src)) {
10543 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10547 element_size = mono_array_element_size (src->obj.vtable->klass);
10549 /* no references should be involved */
10550 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10552 memcpy (dest, source_addr, length * element_size);
10556 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10557 MonoArray *dest, gint32 length)
10562 MONO_CHECK_ARG_NULL (src,);
10563 MONO_CHECK_ARG_NULL (dest,);
10565 if (dest->obj.vtable->klass->rank != 1) {
10566 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10569 if (start_index < 0) {
10570 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10574 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10577 if (start_index + length > mono_array_length (dest)) {
10578 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10581 element_size = mono_array_element_size (dest->obj.vtable->klass);
10583 /* no references should be involved */
10584 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10586 memcpy (dest_addr, src, length * element_size);
10590 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10595 return mono_string_new (mono_domain_get (), ptr);
10599 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10602 MonoString *result = NULL;
10603 mono_error_init (&error);
10605 mono_error_set_argument_null (&error, "ptr", "");
10607 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10608 mono_error_set_pending_exception (&error);
10613 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10616 MonoString *res = NULL;
10617 MonoDomain *domain = mono_domain_get ();
10627 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10628 if (!mono_error_ok (&error)) {
10629 mono_error_set_pending_exception (&error);
10636 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10639 MonoString *res = NULL;
10640 MonoDomain *domain = mono_domain_get ();
10642 mono_error_init (&error);
10646 mono_error_set_argument_null (&error, "ptr", "");
10648 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10651 if (!mono_error_ok (&error))
10652 mono_error_set_pending_exception (&error);
10657 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10659 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10663 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10669 MONO_CHECK_ARG_NULL (rtype, 0);
10671 type = rtype->type;
10672 klass = mono_class_from_mono_type (type);
10673 if (!mono_class_init (klass)) {
10674 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10678 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10680 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10681 return sizeof (gpointer);
10682 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10684 MonoException *exc;
10686 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10687 exc = mono_get_exception_argument ("t", msg);
10689 mono_set_pending_exception (exc);
10693 return mono_class_native_size (klass, NULL);
10697 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10700 MonoMethod *method;
10703 MONO_CHECK_ARG_NULL (obj,);
10704 MONO_CHECK_ARG_NULL (dst,);
10706 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10710 pa [2] = &delete_old;
10712 mono_runtime_invoke_checked (method, NULL, pa, &error);
10713 if (!mono_error_ok (&error))
10714 mono_error_set_pending_exception (&error);
10718 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10720 MonoMethod *method;
10723 mono_error_init (error);
10725 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10730 mono_runtime_invoke_checked (method, NULL, pa, error);
10734 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10739 MONO_CHECK_ARG_NULL (src,);
10740 MONO_CHECK_ARG_NULL (dst,);
10742 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10744 if (t->type == MONO_TYPE_VALUETYPE) {
10745 MonoException *exc;
10748 tmp = g_strdup_printf ("Destination is a boxed value type.");
10749 exc = mono_get_exception_argument ("dst", tmp);
10752 mono_set_pending_exception (exc);
10756 ptr_to_structure (src, dst, &error);
10757 if (!mono_error_ok (&error))
10758 mono_error_set_pending_exception (&error);
10762 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10766 MonoDomain *domain = mono_domain_get ();
10771 MONO_CHECK_ARG_NULL (type, NULL);
10773 klass = mono_class_from_mono_type (type->type);
10774 if (!mono_class_init (klass)) {
10775 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10779 res = mono_object_new_checked (domain, klass, &error);
10780 if (!mono_error_ok (&error)) {
10781 mono_error_set_pending_exception (&error);
10785 ptr_to_structure (src, res, &error);
10786 if (!mono_error_ok (&error)) {
10787 mono_error_set_pending_exception (&error);
10795 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10798 MonoMarshalType *info;
10801 int match_index = -1;
10803 MONO_CHECK_ARG_NULL (type, 0);
10804 MONO_CHECK_ARG_NULL (field_name, 0);
10806 fname = mono_string_to_utf8_checked (field_name, &error);
10807 if (mono_error_set_pending_exception (&error))
10809 klass = mono_class_from_mono_type (type->type);
10810 if (!mono_class_init (klass)) {
10811 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10815 while (klass && match_index == -1) {
10816 MonoClassField* field;
10818 gpointer iter = NULL;
10819 while ((field = mono_class_get_fields (klass, &iter))) {
10820 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10822 if (!strcmp (fname, mono_field_get_name (field))) {
10829 if (match_index == -1)
10830 klass = klass->parent;
10835 if(match_index == -1) {
10836 MonoException* exc;
10839 /* Get back original class instance */
10840 klass = mono_class_from_mono_type (type->type);
10842 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10843 exc = mono_get_exception_argument ("fieldName", tmp);
10846 mono_set_pending_exception ((MonoException*)exc);
10850 info = mono_marshal_load_type_info (klass);
10851 return info->fields [match_index].offset;
10855 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10861 tres = mono_string_to_utf8_checked (string, &error);
10862 if (mono_error_set_pending_exception (&error))
10867 len = strlen (tres) + 1;
10868 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10869 memcpy (ret, tres, len);
10874 char *ret = mono_string_to_utf8_checked (string, &error);
10875 mono_error_set_pending_exception (&error);
10881 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10883 if (string == NULL)
10886 #ifdef TARGET_WIN32
10887 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10888 ((mono_string_length (string) + 1) * 2);
10890 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10892 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10893 res [mono_string_length (string)] = 0;
10899 mono_struct_delete_old (MonoClass *klass, char *ptr)
10901 MonoMarshalType *info;
10904 info = mono_marshal_load_type_info (klass);
10906 for (i = 0; i < info->num_fields; i++) {
10907 MonoMarshalConv conv;
10908 MonoType *ftype = info->fields [i].field->type;
10911 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10914 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10915 klass->unicode, &conv);
10917 cpos = ptr + info->fields [i].offset;
10920 case MONO_MARSHAL_CONV_NONE:
10921 if (MONO_TYPE_ISSTRUCT (ftype)) {
10922 mono_struct_delete_old (ftype->data.klass, cpos);
10926 case MONO_MARSHAL_CONV_STR_LPWSTR:
10927 /* We assume this field points inside a MonoString */
10929 case MONO_MARSHAL_CONV_STR_LPTSTR:
10930 #ifdef TARGET_WIN32
10931 /* We assume this field points inside a MonoString
10935 case MONO_MARSHAL_CONV_STR_LPSTR:
10936 case MONO_MARSHAL_CONV_STR_BSTR:
10937 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10938 case MONO_MARSHAL_CONV_STR_TBSTR:
10939 mono_marshal_free (*(gpointer *)cpos);
10949 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10953 MONO_CHECK_ARG_NULL (src,);
10954 MONO_CHECK_ARG_NULL (type,);
10956 klass = mono_class_from_mono_type (type->type);
10957 if (!mono_class_init (klass)) {
10958 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10962 mono_struct_delete_old (klass, (char *)src);
10966 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10969 size_t s = (size_t)size;
10972 /* This returns a valid pointer for size 0 on MS.NET */
10976 res = GlobalAlloc (GMEM_FIXED, s);
10978 res = g_try_malloc (s);
10981 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10989 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10992 size_t s = (size_t)size;
10995 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11000 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
11002 res = g_try_realloc (ptr, s);
11005 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11013 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11023 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11028 res = CoTaskMemAlloc (size);
11030 if ((gulong)size == 0)
11031 /* This returns a valid pointer for size 0 on MS.NET */
11034 res = g_try_malloc ((gulong)size);
11037 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11044 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11047 CoTaskMemFree (ptr);
11054 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11059 res = CoTaskMemRealloc (ptr, size);
11061 res = g_try_realloc (ptr, (gulong)size);
11064 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11071 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11073 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11077 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11079 MonoClass *klass = mono_type_get_class (type->type);
11080 if (!mono_class_init (klass)) {
11081 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11085 return mono_ftnptr_to_delegate (klass, ftn);
11089 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11091 return mono_delegate_to_ftnptr (delegate);
11095 * mono_marshal_is_loading_type_info:
11097 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11101 mono_marshal_is_loading_type_info (MonoClass *klass)
11103 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11105 return g_slist_find (loads_list, klass) != NULL;
11109 * mono_marshal_load_type_info:
11111 * Initialize klass->marshal_info using information from metadata. This function can
11112 * recursively call itself, and the caller is responsible to avoid that by calling
11113 * mono_marshal_is_loading_type_info () beforehand.
11115 * LOCKING: Acquires the loader lock.
11118 mono_marshal_load_type_info (MonoClass* klass)
11121 guint32 native_size = 0, min_align = 1, packing;
11122 MonoMarshalType *info;
11123 MonoClassField* field;
11126 GSList *loads_list;
11128 g_assert (klass != NULL);
11130 if (klass->marshal_info)
11131 return klass->marshal_info;
11133 if (!klass->inited)
11134 mono_class_init (klass);
11136 if (klass->marshal_info)
11137 return klass->marshal_info;
11140 * This function can recursively call itself, so we keep the list of classes which are
11141 * under initialization in a TLS list.
11143 g_assert (!mono_marshal_is_loading_type_info (klass));
11144 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11145 loads_list = g_slist_prepend (loads_list, klass);
11146 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11149 while ((field = mono_class_get_fields (klass, &iter))) {
11150 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11152 if (mono_field_is_deleted (field))
11157 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11159 /* The mempool is protected by the loader lock */
11160 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11161 info->num_fields = count;
11163 /* Try to find a size for this type in metadata */
11164 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11166 if (klass->parent) {
11167 int parent_size = mono_class_native_size (klass->parent, NULL);
11169 /* Add parent size to real size */
11170 native_size += parent_size;
11171 info->native_size = parent_size;
11174 packing = klass->packing_size ? klass->packing_size : 8;
11177 while ((field = mono_class_get_fields (klass, &iter))) {
11181 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11184 if (mono_field_is_deleted (field))
11186 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11187 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11188 NULL, NULL, &info->fields [j].mspec);
11190 info->fields [j].field = field;
11192 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11193 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11194 /* This field is a hack inserted by MCS to empty structures */
11199 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11200 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11201 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11202 &align, TRUE, klass->unicode);
11203 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11204 min_align = MAX (align, min_align);
11205 info->fields [j].offset = info->native_size;
11206 info->fields [j].offset += align - 1;
11207 info->fields [j].offset &= ~(align - 1);
11208 info->native_size = info->fields [j].offset + size;
11210 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11211 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11212 &align, TRUE, klass->unicode);
11213 min_align = MAX (align, min_align);
11214 info->fields [j].offset = field->offset - sizeof (MonoObject);
11215 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11221 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11222 info->native_size = MAX (native_size, info->native_size);
11224 * If the provided Size is equal or larger than the calculated size, and there
11225 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11227 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11228 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11231 min_align = MIN (min_align, packing);
11235 if (info->native_size & (min_align - 1)) {
11236 info->native_size += min_align - 1;
11237 info->native_size &= ~(min_align - 1);
11240 info->min_align = min_align;
11242 /* Update the class's blittable info, if the layouts don't match */
11243 if (info->native_size != mono_class_value_size (klass, NULL))
11244 klass->blittable = FALSE;
11246 /* If this is an array type, ensure that we have element info */
11247 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11248 mono_marshal_load_type_info (klass->element_class);
11251 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11252 loads_list = g_slist_remove (loads_list, klass);
11253 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11255 mono_marshal_lock ();
11256 if (!klass->marshal_info) {
11257 /*We do double-checking locking on marshal_info */
11258 mono_memory_barrier ();
11259 klass->marshal_info = info;
11261 mono_marshal_unlock ();
11263 return klass->marshal_info;
11267 * mono_class_native_size:
11270 * Returns: the native size of an object instance (when marshaled
11271 * to unmanaged code)
11274 mono_class_native_size (MonoClass *klass, guint32 *align)
11276 if (!klass->marshal_info) {
11277 if (mono_marshal_is_loading_type_info (klass)) {
11282 mono_marshal_load_type_info (klass);
11287 *align = klass->marshal_info->min_align;
11289 return klass->marshal_info->native_size;
11293 * mono_type_native_stack_size:
11294 * @t: the type to return the size it uses on the stack
11296 * Returns: the number of bytes required to hold an instance of this
11297 * type on the native stack
11300 mono_type_native_stack_size (MonoType *t, guint32 *align)
11304 g_assert (t != NULL);
11310 *align = sizeof (gpointer);
11311 return sizeof (gpointer);
11315 case MONO_TYPE_BOOLEAN:
11316 case MONO_TYPE_CHAR:
11327 case MONO_TYPE_STRING:
11328 case MONO_TYPE_OBJECT:
11329 case MONO_TYPE_CLASS:
11330 case MONO_TYPE_SZARRAY:
11331 case MONO_TYPE_PTR:
11332 case MONO_TYPE_FNPTR:
11333 case MONO_TYPE_ARRAY:
11334 *align = sizeof (gpointer);
11335 return sizeof (gpointer);
11340 *align = MONO_ABI_ALIGNOF (double);
11344 *align = MONO_ABI_ALIGNOF (gint64);
11346 case MONO_TYPE_GENERICINST:
11347 if (!mono_type_generic_inst_is_valuetype (t)) {
11348 *align = sizeof (gpointer);
11349 return sizeof (gpointer);
11352 case MONO_TYPE_TYPEDBYREF:
11353 case MONO_TYPE_VALUETYPE: {
11355 MonoClass *klass = mono_class_from_mono_type (t);
11357 if (klass->enumtype)
11358 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11360 size = mono_class_native_size (klass, align);
11361 *align = *align + 3;
11371 g_error ("type 0x%02x unknown", t->type);
11377 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11378 gboolean as_field, gboolean unicode)
11380 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11383 switch (native_type) {
11384 case MONO_NATIVE_BOOLEAN:
11387 case MONO_NATIVE_I1:
11388 case MONO_NATIVE_U1:
11391 case MONO_NATIVE_I2:
11392 case MONO_NATIVE_U2:
11393 case MONO_NATIVE_VARIANTBOOL:
11396 case MONO_NATIVE_I4:
11397 case MONO_NATIVE_U4:
11398 case MONO_NATIVE_ERROR:
11401 case MONO_NATIVE_I8:
11402 case MONO_NATIVE_U8:
11403 *align = MONO_ABI_ALIGNOF (gint64);
11405 case MONO_NATIVE_R4:
11408 case MONO_NATIVE_R8:
11409 *align = MONO_ABI_ALIGNOF (double);
11411 case MONO_NATIVE_INT:
11412 case MONO_NATIVE_UINT:
11413 case MONO_NATIVE_LPSTR:
11414 case MONO_NATIVE_LPWSTR:
11415 case MONO_NATIVE_LPTSTR:
11416 case MONO_NATIVE_BSTR:
11417 case MONO_NATIVE_ANSIBSTR:
11418 case MONO_NATIVE_TBSTR:
11419 case MONO_NATIVE_LPARRAY:
11420 case MONO_NATIVE_SAFEARRAY:
11421 case MONO_NATIVE_IUNKNOWN:
11422 case MONO_NATIVE_IDISPATCH:
11423 case MONO_NATIVE_INTERFACE:
11424 case MONO_NATIVE_ASANY:
11425 case MONO_NATIVE_FUNC:
11426 case MONO_NATIVE_LPSTRUCT:
11427 *align = MONO_ABI_ALIGNOF (gpointer);
11428 return sizeof (gpointer);
11429 case MONO_NATIVE_STRUCT:
11430 klass = mono_class_from_mono_type (type);
11431 if (klass == mono_defaults.object_class &&
11432 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11436 return mono_class_native_size (klass, align);
11437 case MONO_NATIVE_BYVALTSTR: {
11438 int esize = unicode ? 2: 1;
11441 return mspec->data.array_data.num_elem * esize;
11443 case MONO_NATIVE_BYVALARRAY: {
11444 // FIXME: Have to consider ArraySubType
11446 klass = mono_class_from_mono_type (type);
11447 if (klass->element_class == mono_defaults.char_class) {
11448 esize = unicode ? 2 : 1;
11451 esize = mono_class_native_size (klass->element_class, align);
11454 return mspec->data.array_data.num_elem * esize;
11456 case MONO_NATIVE_CUSTOM:
11457 *align = sizeof (gpointer);
11458 return sizeof (gpointer);
11460 case MONO_NATIVE_CURRENCY:
11461 case MONO_NATIVE_VBBYREFSTR:
11463 g_error ("native type %02x not implemented", native_type);
11466 g_assert_not_reached ();
11470 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11472 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11481 t = &o->vtable->klass->byval_arg;
11485 case MONO_TYPE_PTR:
11488 case MONO_TYPE_BOOLEAN:
11491 case MONO_TYPE_CHAR:
11496 return mono_object_unbox (o);
11498 case MONO_TYPE_STRING:
11499 switch (string_encoding) {
11500 case MONO_NATIVE_LPWSTR:
11501 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11503 case MONO_NATIVE_LPSTR:
11504 return mono_string_to_lpstr ((MonoString*)o);
11507 g_warning ("marshaling conversion %d not implemented", string_encoding);
11508 g_assert_not_reached ();
11511 case MONO_TYPE_CLASS:
11512 case MONO_TYPE_VALUETYPE: {
11513 MonoMethod *method;
11516 MonoBoolean delete_old = FALSE;
11518 klass = t->data.klass;
11520 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11523 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11524 klass->blittable || klass->enumtype))
11525 return mono_object_unbox (o);
11527 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11528 if (!mono_error_ok (&error)) {
11529 mono_error_set_pending_exception (&error);
11533 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11534 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11538 pa [2] = &delete_old;
11540 mono_runtime_invoke_checked (method, NULL, pa, &error);
11541 if (!mono_error_ok (&error)) {
11542 mono_error_set_pending_exception (&error);
11552 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11556 /* This is a JIT icall, it sets the pending exception */
11558 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11567 t = &o->vtable->klass->byval_arg;
11569 case MONO_TYPE_STRING:
11570 switch (string_encoding) {
11571 case MONO_NATIVE_LPWSTR:
11572 case MONO_NATIVE_LPSTR:
11573 mono_marshal_free (ptr);
11576 g_warning ("marshaling conversion %d not implemented", string_encoding);
11577 g_assert_not_reached ();
11580 case MONO_TYPE_CLASS:
11581 case MONO_TYPE_VALUETYPE: {
11582 klass = t->data.klass;
11584 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11585 klass->blittable || klass->enumtype))
11588 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11589 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11595 mono_runtime_invoke_checked (method, NULL, pa, &error);
11596 if (!mono_error_ok (&error)) {
11597 mono_error_set_pending_exception (&error);
11602 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11603 mono_struct_delete_old (klass, (char *)ptr);
11606 mono_marshal_free (ptr);
11615 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11617 MonoMethodSignature *sig, *csig;
11618 MonoMethodBuilder *mb;
11623 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11624 mb->method->slot = -1;
11626 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11627 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11629 sig = mono_method_signature (method);
11630 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11631 csig->generic_param_count = 0;
11633 #ifndef DISABLE_JIT
11634 mono_mb_emit_ldarg (mb, 0);
11635 for (i = 0; i < csig->param_count; i++)
11636 mono_mb_emit_ldarg (mb, i + 1);
11637 mono_mb_emit_managed_call (mb, method, NULL);
11638 mono_mb_emit_byte (mb, CEE_RET);
11640 /* We can corlib internal methods */
11641 mb->skip_visibility = TRUE;
11643 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11644 info->d.generic_array_helper.method = method;
11645 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11653 * The mono_win32_compat_* functions are implementations of inline
11654 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11655 * although not exported by kernel32.
11657 * We map the appropiate kernel32 entries to these functions using
11658 * dllmaps declared in the global etc/mono/config.
11662 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11664 if (!dest || !source)
11667 memcpy (dest, source, length);
11671 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11673 memset (dest, fill, length);
11677 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11679 if (!dest || !source)
11682 memmove (dest, source, length);
11686 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11688 memset (dest, 0, length);
11692 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11697 for (i = 0; i < len; ++i)
11701 g_assert (i < len);
11704 while (byte && !(byte & 1))
11706 g_assert (byte == 1);
11709 *bitmask = buf [i];
11713 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11715 MonoMethodBuilder *mb;
11716 MonoMethodSignature *sig, *csig;
11717 MonoExceptionClause *clause;
11722 int i, param_count, sig_size, pos_leave;
11726 // FIXME: we need to store the exception into a MonoHandle
11727 g_assert (!mono_threads_is_coop_enabled ());
11729 klass = method->klass;
11730 image = method->klass->image;
11732 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11734 if ((res = mono_marshal_find_in_cache (cache, method)))
11737 sig = mono_method_signature (method);
11738 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11740 /* add "this" and exception param */
11741 param_count = sig->param_count + sig->hasthis + 1;
11743 /* dup & extend signature */
11744 csig = mono_metadata_signature_alloc (image, param_count);
11745 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11746 memcpy (csig, sig, sig_size);
11747 csig->param_count = param_count;
11750 csig->call_convention = MONO_CALL_DEFAULT;
11752 if (sig->hasthis) {
11754 csig->params [0] = &klass->byval_arg;
11755 /* move params up by one */
11756 for (i = 0; i < sig->param_count; i++)
11757 csig->params [i + 1] = sig->params [i];
11760 /* setup exception param as byref+[out] */
11761 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11762 &mono_defaults.exception_class->byval_arg);
11763 csig->params [param_count - 1]->byref = 1;
11764 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11766 /* convert struct return to object */
11767 if (MONO_TYPE_ISSTRUCT (sig->ret))
11768 csig->ret = &mono_defaults.object_class->byval_arg;
11770 #ifndef DISABLE_JIT
11771 /* local 0 (temp for exception object) */
11772 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11774 /* local 1 (temp for result) */
11775 if (!MONO_TYPE_IS_VOID (sig->ret))
11776 mono_mb_add_local (mb, sig->ret);
11778 /* clear exception arg */
11779 mono_mb_emit_ldarg (mb, param_count - 1);
11780 mono_mb_emit_byte (mb, CEE_LDNULL);
11781 mono_mb_emit_byte (mb, CEE_STIND_REF);
11784 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11785 clause->try_offset = mono_mb_get_label (mb);
11787 /* push method's args */
11788 for (i = 0; i < param_count - 1; i++) {
11792 mono_mb_emit_ldarg (mb, i);
11794 /* get the byval type of the param */
11795 klass = mono_class_from_mono_type (csig->params [i]);
11796 type = &klass->byval_arg;
11798 /* unbox struct args */
11799 if (MONO_TYPE_ISSTRUCT (type)) {
11800 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11802 /* byref args & and the "this" arg must remain a ptr.
11803 Otherwise make a copy of the value type */
11804 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11805 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11807 csig->params [i] = &mono_defaults.object_class->byval_arg;
11812 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11813 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11815 mono_mb_emit_op (mb, CEE_CALL, method);
11817 /* save result at local 1 */
11818 if (!MONO_TYPE_IS_VOID (sig->ret))
11819 mono_mb_emit_stloc (mb, 1);
11821 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11824 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11825 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11826 clause->data.catch_class = mono_defaults.object_class;
11828 clause->handler_offset = mono_mb_get_label (mb);
11830 /* store exception at local 0 */
11831 mono_mb_emit_stloc (mb, 0);
11832 mono_mb_emit_ldarg (mb, param_count - 1);
11833 mono_mb_emit_ldloc (mb, 0);
11834 mono_mb_emit_byte (mb, CEE_STIND_REF);
11835 mono_mb_emit_branch (mb, CEE_LEAVE);
11837 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11839 mono_mb_set_clauses (mb, 1, clause);
11841 mono_mb_patch_branch (mb, pos_leave);
11844 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11845 mono_mb_emit_ldloc (mb, 1);
11847 /* box the return value */
11848 if (MONO_TYPE_ISSTRUCT (sig->ret))
11849 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11852 mono_mb_emit_byte (mb, CEE_RET);
11855 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11862 * mono_marshal_free_dynamic_wrappers:
11864 * Free wrappers of the dynamic method METHOD.
11867 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11869 MonoImage *image = method->klass->image;
11871 g_assert (method_is_dynamic (method));
11873 /* This could be called during shutdown */
11874 if (marshal_mutex_initialized)
11875 mono_marshal_lock ();
11877 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11878 * they could be shared with other methods ?
11880 if (image->wrapper_caches.runtime_invoke_direct_cache)
11881 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11882 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11883 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11884 // FIXME: Need to clear the caches in other images as well
11885 if (image->delegate_bound_static_invoke_cache)
11886 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11888 if (marshal_mutex_initialized)
11889 mono_marshal_unlock ();
11893 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11895 g_assert (ftnptr_eh_callback);
11896 ftnptr_eh_callback (gchandle);
11900 ftnptr_eh_callback_default (guint32 gchandle)
11902 MonoException *exc;
11903 gpointer stackdata;
11905 g_assert (gchandle >= 0);
11907 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
11909 exc = (MonoException*) mono_gchandle_get_target (gchandle);
11911 mono_gchandle_free (gchandle);
11913 mono_raise_exception (exc);
11917 * mono_install_ftnptr_eh_callback:
11919 * Install a callback that should be called when there is a managed exception
11920 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
11921 * managed exception to a native exception, to properly unwind the native
11922 * stack; this native exception will then be converted back to a managed
11923 * exception in their managed-to-native wrapper.
11926 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
11928 ftnptr_eh_callback = callback;