2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #include "metadata/marshal.h"
23 #include "metadata/method-builder.h"
24 #include "metadata/tabledefs.h"
25 #include "metadata/exception.h"
26 #include "metadata/appdomain.h"
27 #include "mono/metadata/abi-details.h"
28 #include "mono/metadata/debug-helpers.h"
29 #include "mono/metadata/threads.h"
30 #include "mono/metadata/monitor.h"
31 #include "mono/metadata/class-internals.h"
32 #include "mono/metadata/metadata-internals.h"
33 #include "mono/metadata/domain-internals.h"
34 #include "mono/metadata/gc-internals.h"
35 #include "mono/metadata/threads-types.h"
36 #include "mono/metadata/string-icalls.h"
37 #include "mono/metadata/attrdefs.h"
38 #include "mono/metadata/gc-internals.h"
39 #include "mono/metadata/cominterop.h"
40 #include "mono/metadata/remoting.h"
41 #include "mono/metadata/reflection-internals.h"
42 #include "mono/metadata/threadpool-ms.h"
43 #include "mono/utils/mono-counters.h"
44 #include "mono/utils/mono-tls.h"
45 #include "mono/utils/mono-memory-model.h"
46 #include "mono/utils/atomic.h"
47 #include <mono/utils/mono-threads.h>
48 #include <mono/utils/mono-threads-coop.h>
49 #include <mono/utils/mono-error-internals.h>
54 /* #define DEBUG_RUNTIME_CODE */
56 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
60 #include "mono/cil/opcode.def"
66 * This mutex protects the various marshalling related caches in MonoImage
67 * and a few other data structures static to this file.
69 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
70 * runtime locking latice. Which means it can take simple locks suck as the image lock.
72 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
73 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
74 static mono_mutex_t marshal_mutex;
75 static gboolean marshal_mutex_initialized;
77 static MonoNativeTlsKey last_error_tls_id;
79 static MonoNativeTlsKey load_type_info_tls_id;
81 static gboolean use_aot_wrappers;
83 static void ftnptr_eh_callback_default (guint32 gchandle);
85 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
88 delegate_hash_table_add (MonoDelegate *d);
91 delegate_hash_table_remove (MonoDelegate *d);
94 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
97 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, MonoMarshalNative string_encoding);
100 mono_struct_delete_old (MonoClass *klass, char *ptr);
103 mono_marshal_string_to_utf16 (MonoString *s);
106 mono_marshal_string_to_utf16_copy (MonoString *s);
109 mono_string_to_lpstr (MonoString *string_obj);
111 static MonoStringBuilder *
112 mono_string_utf8_to_builder2 (char *text);
114 static MonoStringBuilder *
115 mono_string_utf16_to_builder2 (gunichar2 *text);
118 mono_string_new_len_wrapper (const char *text, guint length);
121 mono_string_from_byvalstr (const char *data, int len);
124 mono_string_from_byvalwstr (gunichar2 *data, int len);
127 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
130 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
133 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
136 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
138 static MonoAsyncResult *
139 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
142 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
145 mono_marshal_set_last_error_windows (int error);
148 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
150 static void init_safe_handle (void);
153 ves_icall_marshal_alloc (gulong size);
156 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
159 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
162 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
165 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
168 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
171 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
174 mono_delegate_to_ftnptr (MonoDelegate *delegate);
177 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
180 mono_array_to_savearray (MonoArray *array);
183 mono_array_to_lparray (MonoArray *array);
186 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
189 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
192 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
195 mono_array_to_savearray (MonoArray *array);
198 mono_array_to_lparray (MonoArray *array);
201 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
204 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
206 /* Lazy class loading functions */
207 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, System.Text, StringBuilder)
208 static GENERATE_GET_CLASS_WITH_CACHE (date_time, System, DateTime)
209 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, System.Runtime.InteropServices, UnmanagedFunctionPointerAttribute)
210 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, System.Runtime.InteropServices, ICustomMarshaler)
212 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
213 static MonoMethod *sh_dangerous_add_ref;
214 static MonoMethod *sh_dangerous_release;
219 sh_dangerous_add_ref = mono_class_get_method_from_name (
220 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
221 sh_dangerous_release = mono_class_get_method_from_name (
222 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
226 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
228 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
230 mono_register_jit_icall (func, name, sig, no_wrapper);
234 mono_signature_no_pinvoke (MonoMethod *method)
236 MonoMethodSignature *sig = mono_method_signature (method);
238 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
239 sig->pinvoke = FALSE;
246 mono_marshal_init_tls (void)
248 mono_native_tls_alloc (&last_error_tls_id, NULL);
249 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
253 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
256 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
257 mono_error_set_pending_exception (&error);
262 ves_icall_mono_string_from_utf16 (gunichar2 *data)
265 MonoString *result = mono_string_from_utf16_checked (data, &error);
266 mono_error_set_pending_exception (&error);
271 ves_icall_mono_string_to_utf8 (MonoString *str)
274 char *result = mono_string_to_utf8_checked (str, &error);
275 mono_error_set_pending_exception (&error);
280 mono_marshal_init (void)
282 static gboolean module_initialized = FALSE;
284 if (!module_initialized) {
285 module_initialized = TRUE;
286 mono_os_mutex_init_recursive (&marshal_mutex);
287 marshal_mutex_initialized = TRUE;
289 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
290 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
291 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
292 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
293 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
294 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
295 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
296 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
297 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
298 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
299 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
300 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
301 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
302 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
303 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
304 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
305 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
306 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
307 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
308 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
309 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
310 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
311 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
312 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
313 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
314 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr int32", FALSE);
315 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
316 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
317 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
318 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
319 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
320 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
321 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
322 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
323 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
324 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
325 register_icall (g_free, "g_free", "void ptr", FALSE);
326 register_icall (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr", FALSE);
327 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
328 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
329 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
330 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
331 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
332 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
333 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
334 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
335 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
336 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
337 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
338 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
339 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
340 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
342 mono_cominterop_init ();
343 mono_remoting_init ();
348 mono_marshal_cleanup (void)
350 mono_cominterop_cleanup ();
352 mono_native_tls_free (load_type_info_tls_id);
353 mono_native_tls_free (last_error_tls_id);
354 mono_os_mutex_destroy (&marshal_mutex);
355 marshal_mutex_initialized = FALSE;
359 mono_marshal_lock_internal (void)
361 mono_marshal_lock ();
365 mono_marshal_unlock_internal (void)
367 mono_marshal_unlock ();
370 /* This is a JIT icall, it sets the pending exception and return NULL on error */
372 mono_delegate_to_ftnptr (MonoDelegate *delegate)
375 MonoMethod *method, *wrapper;
377 uint32_t target_handle = 0;
382 if (delegate->delegate_trampoline)
383 return delegate->delegate_trampoline;
385 klass = ((MonoObject *)delegate)->vtable->klass;
386 g_assert (klass->delegate);
388 method = delegate->method;
389 if (delegate->method_is_virtual)
390 method = mono_object_get_virtual_method (delegate->target, method);
392 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
393 const char *exc_class, *exc_arg;
396 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
398 g_assert (exc_class);
399 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
405 if (delegate->target) {
406 /* Produce a location which can be embedded in JITted code */
407 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
410 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle);
412 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
416 // Add the delegate to the delegate hash table
417 delegate_hash_table_add (delegate);
419 /* when the object is collected, collect the dynamic method, too */
420 mono_object_register_finalizer ((MonoObject*)delegate);
422 return delegate->delegate_trampoline;
425 mono_gchandle_free (target_handle);
426 mono_error_set_pending_exception (&error);
431 * this hash table maps from a delegate trampoline object to a weak reference
432 * of the delegate. As an optimizations with a non-moving GC we store the
433 * object pointer itself, otherwise we use a GC handle.
435 static GHashTable *delegate_hash_table;
438 delegate_hash_table_new (void) {
439 return g_hash_table_new (NULL, NULL);
443 delegate_hash_table_remove (MonoDelegate *d)
445 guint32 gchandle = 0;
447 mono_marshal_lock ();
448 if (delegate_hash_table == NULL)
449 delegate_hash_table = delegate_hash_table_new ();
450 if (mono_gc_is_moving ())
451 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
452 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
453 mono_marshal_unlock ();
454 if (gchandle && mono_gc_is_moving ())
455 mono_gchandle_free (gchandle);
459 delegate_hash_table_add (MonoDelegate *d)
462 guint32 old_gchandle;
464 mono_marshal_lock ();
465 if (delegate_hash_table == NULL)
466 delegate_hash_table = delegate_hash_table_new ();
467 if (mono_gc_is_moving ()) {
468 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
469 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
470 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
472 mono_gchandle_free (old_gchandle);
474 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
476 mono_marshal_unlock ();
480 * mono_marshal_use_aot_wrappers:
482 * Instructs this module to use AOT compatible wrappers.
485 mono_marshal_use_aot_wrappers (gboolean use)
487 use_aot_wrappers = use;
491 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
494 MonoCustomAttrInfo *cinfo;
495 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
497 /* The attribute is only available in Net 2.0 */
498 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
500 * The pinvoke attributes are stored in a real custom attribute so we have to
503 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
504 if (!mono_error_ok (&error)) {
505 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
506 mono_error_cleanup (&error);
508 if (cinfo && !mono_runtime_get_no_exec ()) {
509 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
511 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
513 if (!mono_error_ok (&error)) {
514 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
515 mono_error_cleanup (&error);
519 mono_custom_attrs_free (cinfo);
524 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
526 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
535 mono_marshal_lock ();
536 if (delegate_hash_table == NULL)
537 delegate_hash_table = delegate_hash_table_new ();
539 if (mono_gc_is_moving ()) {
540 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
541 mono_marshal_unlock ();
543 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
547 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
548 mono_marshal_unlock ();
551 /* This is a native function, so construct a delegate for it */
552 MonoMethodSignature *sig;
554 MonoMarshalSpec **mspecs;
555 MonoMethod *invoke = mono_get_delegate_invoke (klass);
556 MonoMethodPInvoke piinfo;
557 MonoObject *this_obj;
560 if (use_aot_wrappers) {
561 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
562 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
563 if (!is_ok (&error)) {
564 mono_error_set_pending_exception (&error);
568 memset (&piinfo, 0, sizeof (piinfo));
569 parse_unmanaged_function_pointer_attr (klass, &piinfo);
571 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
572 mono_method_get_marshal_info (invoke, mspecs);
573 /* Freed below so don't alloc from mempool */
574 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
577 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
580 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
582 mono_metadata_free_marshal_spec (mspecs [i]);
587 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
588 if (!mono_error_ok (&error)) {
589 mono_error_set_pending_exception (&error);
592 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
593 if (mono_error_set_pending_exception (&error))
595 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
596 if (mono_error_set_pending_exception (&error))
600 if (d->object.vtable->domain != mono_domain_get ()) {
601 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
609 mono_delegate_free_ftnptr (MonoDelegate *delegate)
614 delegate_hash_table_remove (delegate);
616 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
618 if (!delegate->target) {
619 /* The wrapper method is shared between delegates -> no need to free it */
628 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
631 method = mono_jit_info_get_method (ji);
632 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
634 /*the target gchandle is the first entry after size and the wrapper itself.*/
635 gchandle = GPOINTER_TO_UINT (method_data [2]);
638 mono_gchandle_free (gchandle);
640 mono_runtime_free_method (mono_object_domain (delegate), method);
644 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
646 mono_string_from_byvalstr (const char *data, int max_len)
649 MonoDomain *domain = mono_domain_get ();
655 while (len < max_len - 1 && data [len])
658 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
659 mono_error_set_pending_exception (&error);
663 /* This is a JIT icall, it sets the pending exception and return NULL on error */
665 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
668 MonoString *res = NULL;
669 MonoDomain *domain = mono_domain_get ();
675 while (data [len]) len++;
677 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
678 if (!mono_error_ok (&error)) {
679 mono_error_set_pending_exception (&error);
686 mono_array_to_savearray (MonoArray *array)
691 g_assert_not_reached ();
696 mono_array_to_lparray (MonoArray *array)
699 gpointer *nativeArray = NULL;
700 int nativeArraySize = 0;
710 klass = array->obj.vtable->klass;
712 switch (klass->element_class->byval_arg.type) {
714 g_assert_not_reached ();
716 case MONO_TYPE_CLASS:
717 nativeArraySize = array->max_length;
718 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
719 for(i = 0; i < nativeArraySize; ++i)
720 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
723 case MONO_TYPE_BOOLEAN:
736 case MONO_TYPE_VALUETYPE:
740 case MONO_TYPE_GENERICINST:
741 case MONO_TYPE_OBJECT:
742 case MONO_TYPE_ARRAY:
743 case MONO_TYPE_SZARRAY:
744 case MONO_TYPE_STRING:
746 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
747 g_assert_not_reached ();
750 return array->vector;
754 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
765 klass = array->obj.vtable->klass;
767 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
768 for(i = 0; i < array->max_length; ++i)
769 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
776 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
778 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
780 if (elclass == mono_defaults.byte_class) {
781 GError *error = NULL;
785 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
788 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
792 g_error_free (error);
795 g_assert_not_reached ();
799 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
801 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
804 /* This is a JIT icall, it sets the pending exception and returns on error */
806 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
808 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
810 if (elclass == mono_defaults.byte_class) {
812 GError *error = NULL;
814 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
816 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
817 g_error_free (error);
821 memcpy (native_arr, as, MIN (strlen (as), elnum));
824 g_assert_not_reached ();
829 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
831 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
834 static MonoStringBuilder *
835 mono_string_builder_new (int starting_string_length)
837 static MonoClass *string_builder_class;
838 static MonoMethod *sb_ctor;
839 static void *args [1];
842 int initial_len = starting_string_length;
848 MonoMethodDesc *desc;
851 string_builder_class = mono_class_get_string_builder_class ();
852 g_assert (string_builder_class);
853 desc = mono_method_desc_new (":.ctor(int)", FALSE);
854 m = mono_method_desc_search_in_class (desc, string_builder_class);
856 mono_method_desc_free (desc);
857 mono_memory_barrier ();
861 // We make a new array in the _to_builder function, so this
862 // array will always be garbage collected.
863 args [0] = &initial_len;
865 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
866 mono_error_assert_ok (&error);
869 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
870 g_assert (exc == NULL);
871 mono_error_assert_ok (&error);
873 g_assert (sb->chunkChars->max_length >= initial_len);
879 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
881 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
882 gunichar2 *charSrc = (gunichar2 *)text;
883 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
885 sb->chunkLength = string_len;
891 mono_string_utf16_to_builder2 (gunichar2 *text)
897 for (len = 0; text [len] != 0; ++len);
899 MonoStringBuilder *sb = mono_string_builder_new (len);
900 mono_string_utf16_to_builder (sb, text);
906 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
911 int len = strlen (text);
912 if (len > mono_string_builder_capacity (sb))
913 len = mono_string_builder_capacity (sb);
915 GError *error = NULL;
917 gunichar2* ut = g_utf8_to_utf16 (text, len, NULL, &copied, &error);
920 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
921 mono_string_utf16_to_builder_copy (sb, ut, copied);
923 g_error_free (error);
929 mono_string_utf8_to_builder2 (char *text)
934 int len = strlen (text);
935 MonoStringBuilder *sb = mono_string_builder_new (len);
936 mono_string_utf8_to_builder (sb, text);
943 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
949 for (len = 0; text [len] != 0; ++len);
951 if (len > mono_string_builder_capacity (sb))
952 len = mono_string_builder_capacity (sb);
954 mono_string_utf16_to_builder_copy (sb, text, len);
958 * mono_string_builder_to_utf8:
959 * @sb: the string builder
961 * Converts to utf8 the contents of the MonoStringBuilder.
963 * Returns: a utf8 string with the contents of the StringBuilder.
965 * The return value must be released with mono_marshal_free.
967 * This is a JIT icall, it sets the pending exception and returns NULL on error.
970 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
973 GError *gerror = NULL;
978 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
980 guint str_len = mono_string_builder_string_length (sb);
982 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, NULL, &gerror);
985 g_error_free (gerror);
986 mono_marshal_free (str_utf16);
987 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
990 guint len = mono_string_builder_capacity (sb) + 1;
991 gchar *res = (gchar *)mono_marshal_alloc (len * sizeof (gchar), &error);
992 if (!mono_error_ok (&error)) {
993 mono_marshal_free (str_utf16);
995 mono_error_set_pending_exception (&error);
999 g_assert (str_len < len);
1000 memcpy (res, tmp, str_len * sizeof (gchar));
1001 res[str_len] = '\0';
1003 mono_marshal_free (str_utf16);
1010 * mono_string_builder_to_utf16:
1011 * @sb: the string builder
1013 * Converts to utf16 the contents of the MonoStringBuilder.
1015 * Returns: a utf16 string with the contents of the StringBuilder.
1017 * The return value must be released with mono_marshal_free.
1019 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1022 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1029 g_assert (sb->chunkChars);
1031 guint len = mono_string_builder_capacity (sb);
1036 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1037 if (!mono_error_ok (&error)) {
1038 mono_error_set_pending_exception (&error);
1047 MonoStringBuilder* chunk = sb;
1049 if (chunk->chunkLength > 0) {
1050 // Check that we will not overrun our boundaries.
1051 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1053 if (chunk->chunkLength <= len) {
1054 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1056 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1059 len -= chunk->chunkLength;
1061 chunk = chunk->chunkPrevious;
1062 } while (chunk != NULL);
1067 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1069 mono_string_to_lpstr (MonoString *s)
1074 GError *error = NULL;
1080 as = CoTaskMemAlloc (1);
1085 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1087 MonoException *exc = mono_get_exception_argument ("string", error->message);
1088 g_error_free (error);
1089 mono_set_pending_exception (exc);
1092 as = CoTaskMemAlloc (len + 1);
1093 memcpy (as, tmp, len + 1);
1099 char *result = mono_string_to_utf8_checked (s, &error);
1100 mono_error_set_pending_exception (&error);
1106 mono_string_to_ansibstr (MonoString *string_obj)
1108 g_error ("UnmanagedMarshal.BStr is not implemented.");
1113 * mono_string_to_byvalstr:
1114 * @dst: Where to store the null-terminated utf8 decoded string.
1115 * @src: the MonoString to copy.
1116 * @size: the maximum number of bytes to copy.
1118 * Copies the MonoString pointed to by @src as a utf8 string
1119 * into @dst, it copies at most @size bytes into the destination.
1122 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1128 g_assert (dst != NULL);
1129 g_assert (size > 0);
1131 memset (dst, 0, size);
1135 s = mono_string_to_utf8_checked (src, &error);
1136 if (mono_error_set_pending_exception (&error))
1138 len = MIN (size, strlen (s));
1141 memcpy (dst, s, len);
1146 * mono_string_to_byvalwstr:
1147 * @dst: Where to store the null-terminated utf16 decoded string.
1148 * @src: the MonoString to copy.
1149 * @size: the maximum number of bytes to copy.
1151 * Copies the MonoString pointed to by @src as a utf16 string into
1152 * @dst, it copies at most @size bytes into the destination (including
1153 * a terminating 16-bit zero terminator).
1156 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1160 g_assert (dst != NULL);
1161 g_assert (size > 1);
1164 memset (dst, 0, size * 2);
1168 len = MIN (size, (mono_string_length (src)));
1169 memcpy (dst, mono_string_chars (src), size * 2);
1170 if (size <= mono_string_length (src))
1172 *((gunichar2 *) dst + len) = 0;
1175 /* this is an icall, it sets the pending exception and returns NULL on error */
1177 mono_string_new_len_wrapper (const char *text, guint length)
1180 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1181 mono_error_set_pending_exception (&error);
1188 * mono_mb_emit_exception_marshal_directive:
1190 * This function assumes ownership of MSG, which should be malloc-ed.
1193 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1198 s = mono_image_strdup (mb->method->klass->image, msg);
1203 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1206 #endif /* !DISABLE_JIT */
1209 mono_type_to_ldind (MonoType *type)
1215 switch (type->type) {
1217 return CEE_LDIND_I1;
1219 case MONO_TYPE_BOOLEAN:
1220 return CEE_LDIND_U1;
1222 return CEE_LDIND_I2;
1224 case MONO_TYPE_CHAR:
1225 return CEE_LDIND_U2;
1227 return CEE_LDIND_I4;
1229 return CEE_LDIND_U4;
1233 case MONO_TYPE_FNPTR:
1235 case MONO_TYPE_CLASS:
1236 case MONO_TYPE_STRING:
1237 case MONO_TYPE_OBJECT:
1238 case MONO_TYPE_SZARRAY:
1239 case MONO_TYPE_ARRAY:
1240 return CEE_LDIND_REF;
1243 return CEE_LDIND_I8;
1245 return CEE_LDIND_R4;
1247 return CEE_LDIND_R8;
1248 case MONO_TYPE_VALUETYPE:
1249 if (type->data.klass->enumtype) {
1250 type = mono_class_enum_basetype (type->data.klass);
1254 case MONO_TYPE_TYPEDBYREF:
1256 case MONO_TYPE_GENERICINST:
1257 type = &type->data.generic_class->container_class->byval_arg;
1260 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1266 mono_type_to_stind (MonoType *type)
1269 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1273 switch (type->type) {
1276 case MONO_TYPE_BOOLEAN:
1277 return CEE_STIND_I1;
1280 case MONO_TYPE_CHAR:
1281 return CEE_STIND_I2;
1284 return CEE_STIND_I4;
1288 case MONO_TYPE_FNPTR:
1290 case MONO_TYPE_CLASS:
1291 case MONO_TYPE_STRING:
1292 case MONO_TYPE_OBJECT:
1293 case MONO_TYPE_SZARRAY:
1294 case MONO_TYPE_ARRAY:
1295 return CEE_STIND_REF;
1298 return CEE_STIND_I8;
1300 return CEE_STIND_R4;
1302 return CEE_STIND_R8;
1303 case MONO_TYPE_VALUETYPE:
1304 if (type->data.klass->enumtype) {
1305 type = mono_class_enum_basetype (type->data.klass);
1309 case MONO_TYPE_TYPEDBYREF:
1311 case MONO_TYPE_GENERICINST:
1312 type = &type->data.generic_class->container_class->byval_arg;
1315 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1323 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1326 case MONO_MARSHAL_CONV_BOOL_I4:
1327 mono_mb_emit_ldloc (mb, 1);
1328 mono_mb_emit_ldloc (mb, 0);
1329 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1330 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1331 mono_mb_emit_byte (mb, 3);
1332 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1333 mono_mb_emit_byte (mb, CEE_BR_S);
1334 mono_mb_emit_byte (mb, 1);
1335 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1336 mono_mb_emit_byte (mb, CEE_STIND_I1);
1338 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1339 mono_mb_emit_ldloc (mb, 1);
1340 mono_mb_emit_ldloc (mb, 0);
1341 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1342 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1343 mono_mb_emit_byte (mb, 3);
1344 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1345 mono_mb_emit_byte (mb, CEE_BR_S);
1346 mono_mb_emit_byte (mb, 1);
1347 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1348 mono_mb_emit_byte (mb, CEE_STIND_I1);
1350 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1351 MonoClass *eklass = NULL;
1354 if (type->type == MONO_TYPE_SZARRAY) {
1355 eklass = type->data.klass;
1357 g_assert_not_reached ();
1360 esize = mono_class_native_size (eklass, NULL);
1362 /* create a new array */
1363 mono_mb_emit_ldloc (mb, 1);
1364 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1365 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1366 mono_mb_emit_byte (mb, CEE_STIND_REF);
1368 if (eklass->blittable) {
1369 /* copy the elements */
1370 mono_mb_emit_ldloc (mb, 1);
1371 mono_mb_emit_byte (mb, CEE_LDIND_I);
1372 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1373 mono_mb_emit_byte (mb, CEE_ADD);
1374 mono_mb_emit_ldloc (mb, 0);
1375 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1376 mono_mb_emit_byte (mb, CEE_PREFIX1);
1377 mono_mb_emit_byte (mb, CEE_CPBLK);
1380 int array_var, src_var, dst_var, index_var;
1381 guint32 label2, label3;
1383 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1384 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1385 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1388 mono_mb_emit_ldloc (mb, 1);
1389 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1390 mono_mb_emit_stloc (mb, array_var);
1392 /* save the old src pointer */
1393 mono_mb_emit_ldloc (mb, 0);
1394 mono_mb_emit_stloc (mb, src_var);
1395 /* save the old dst pointer */
1396 mono_mb_emit_ldloc (mb, 1);
1397 mono_mb_emit_stloc (mb, dst_var);
1399 /* Emit marshalling loop */
1400 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1401 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1402 mono_mb_emit_stloc (mb, index_var);
1405 label2 = mono_mb_get_label (mb);
1406 mono_mb_emit_ldloc (mb, index_var);
1407 mono_mb_emit_ldloc (mb, array_var);
1408 mono_mb_emit_byte (mb, CEE_LDLEN);
1409 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1411 /* src is already set */
1414 mono_mb_emit_ldloc (mb, array_var);
1415 mono_mb_emit_ldloc (mb, index_var);
1416 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1417 mono_mb_emit_stloc (mb, 1);
1419 /* Do the conversion */
1420 emit_struct_conv (mb, eklass, TRUE);
1423 mono_mb_emit_add_to_local (mb, index_var, 1);
1425 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1427 mono_mb_patch_branch (mb, label3);
1429 /* restore the old src pointer */
1430 mono_mb_emit_ldloc (mb, src_var);
1431 mono_mb_emit_stloc (mb, 0);
1432 /* restore the old dst pointer */
1433 mono_mb_emit_ldloc (mb, dst_var);
1434 mono_mb_emit_stloc (mb, 1);
1438 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1439 MonoClass *eclass = mono_defaults.char_class;
1441 /* create a new array */
1442 mono_mb_emit_ldloc (mb, 1);
1443 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1444 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1445 mono_mb_emit_byte (mb, CEE_STIND_REF);
1447 mono_mb_emit_ldloc (mb, 1);
1448 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1449 mono_mb_emit_ldloc (mb, 0);
1450 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1451 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1454 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1455 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1456 mono_mb_emit_ldloc (mb, 1);
1457 mono_mb_emit_ldloc (mb, 0);
1458 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1459 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1461 mono_mb_emit_ldloc (mb, 1);
1462 mono_mb_emit_ldloc (mb, 0);
1463 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1465 mono_mb_emit_byte (mb, CEE_STIND_REF);
1467 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1468 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1469 mono_mb_emit_ldloc (mb, 1);
1470 mono_mb_emit_ldloc (mb, 0);
1471 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1472 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1474 mono_mb_emit_ldloc (mb, 1);
1475 mono_mb_emit_ldloc (mb, 0);
1476 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1478 mono_mb_emit_byte (mb, CEE_STIND_REF);
1480 case MONO_MARSHAL_CONV_STR_LPTSTR:
1481 mono_mb_emit_ldloc (mb, 1);
1482 mono_mb_emit_ldloc (mb, 0);
1483 mono_mb_emit_byte (mb, CEE_LDIND_I);
1485 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1487 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1489 mono_mb_emit_byte (mb, CEE_STIND_REF);
1491 case MONO_MARSHAL_CONV_STR_LPSTR:
1492 mono_mb_emit_ldloc (mb, 1);
1493 mono_mb_emit_ldloc (mb, 0);
1494 mono_mb_emit_byte (mb, CEE_LDIND_I);
1495 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1496 mono_mb_emit_byte (mb, CEE_STIND_REF);
1498 case MONO_MARSHAL_CONV_STR_LPWSTR:
1499 mono_mb_emit_ldloc (mb, 1);
1500 mono_mb_emit_ldloc (mb, 0);
1501 mono_mb_emit_byte (mb, CEE_LDIND_I);
1502 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1503 mono_mb_emit_byte (mb, CEE_STIND_REF);
1505 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1506 MonoClass *klass = mono_class_from_mono_type (type);
1507 int src_var, dst_var;
1509 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1510 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1512 /* *dst = new object */
1513 mono_mb_emit_ldloc (mb, 1);
1514 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1515 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1516 mono_mb_emit_byte (mb, CEE_STIND_REF);
1518 /* save the old src pointer */
1519 mono_mb_emit_ldloc (mb, 0);
1520 mono_mb_emit_stloc (mb, src_var);
1521 /* save the old dst pointer */
1522 mono_mb_emit_ldloc (mb, 1);
1523 mono_mb_emit_stloc (mb, dst_var);
1525 /* dst = pointer to newly created object data */
1526 mono_mb_emit_ldloc (mb, 1);
1527 mono_mb_emit_byte (mb, CEE_LDIND_I);
1528 mono_mb_emit_icon (mb, sizeof (MonoObject));
1529 mono_mb_emit_byte (mb, CEE_ADD);
1530 mono_mb_emit_stloc (mb, 1);
1532 emit_struct_conv (mb, klass, TRUE);
1534 /* restore the old src pointer */
1535 mono_mb_emit_ldloc (mb, src_var);
1536 mono_mb_emit_stloc (mb, 0);
1537 /* restore the old dst pointer */
1538 mono_mb_emit_ldloc (mb, dst_var);
1539 mono_mb_emit_stloc (mb, 1);
1542 case MONO_MARSHAL_CONV_DEL_FTN: {
1543 MonoClass *klass = mono_class_from_mono_type (type);
1545 mono_mb_emit_ldloc (mb, 1);
1546 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1547 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1548 mono_mb_emit_ldloc (mb, 0);
1549 mono_mb_emit_byte (mb, CEE_LDIND_I);
1550 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1551 mono_mb_emit_byte (mb, CEE_STIND_REF);
1554 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1555 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1559 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1560 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1561 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1562 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1564 #endif /* DISABLE_COM */
1566 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1568 * Passing SafeHandles as ref does not allow the unmanaged code
1569 * to change the SafeHandle value. If the value is changed,
1570 * we should issue a diagnostic exception (NotSupportedException)
1571 * that informs the user that changes to handles in unmanaged code
1574 * Since we currently have no access to the original
1575 * SafeHandle that was used during the marshalling,
1576 * for now we just ignore this, and ignore/discard any
1577 * changes that might have happened to the handle.
1582 case MONO_MARSHAL_CONV_HANDLEREF: {
1584 * Passing HandleRefs in a struct that is ref()ed does not
1585 * copy the values back to the HandleRef
1590 case MONO_MARSHAL_CONV_STR_BSTR:
1591 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1592 case MONO_MARSHAL_CONV_STR_TBSTR:
1593 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1595 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1597 mono_mb_emit_exception_marshal_directive (mb, msg);
1604 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1607 if (!ind_store_type)
1608 ind_store_type = &dummy;
1609 *ind_store_type = CEE_STIND_I;
1611 case MONO_MARSHAL_CONV_STR_LPWSTR:
1612 return mono_marshal_string_to_utf16;
1613 case MONO_MARSHAL_CONV_LPWSTR_STR:
1614 *ind_store_type = CEE_STIND_REF;
1615 return ves_icall_mono_string_from_utf16;
1616 case MONO_MARSHAL_CONV_LPTSTR_STR:
1617 *ind_store_type = CEE_STIND_REF;
1618 return mono_string_new_wrapper;
1619 case MONO_MARSHAL_CONV_LPSTR_STR:
1620 *ind_store_type = CEE_STIND_REF;
1621 return mono_string_new_wrapper;
1622 case MONO_MARSHAL_CONV_STR_LPTSTR:
1624 return mono_marshal_string_to_utf16;
1626 return mono_string_to_lpstr;
1628 case MONO_MARSHAL_CONV_STR_LPSTR:
1629 return mono_string_to_lpstr;
1630 case MONO_MARSHAL_CONV_STR_BSTR:
1631 return mono_string_to_bstr;
1632 case MONO_MARSHAL_CONV_BSTR_STR:
1633 *ind_store_type = CEE_STIND_REF;
1634 return mono_string_from_bstr_icall;
1635 case MONO_MARSHAL_CONV_STR_TBSTR:
1636 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1637 return mono_string_to_ansibstr;
1638 case MONO_MARSHAL_CONV_SB_LPSTR:
1639 return mono_string_builder_to_utf8;
1640 case MONO_MARSHAL_CONV_SB_LPTSTR:
1642 return mono_string_builder_to_utf16;
1644 return mono_string_builder_to_utf8;
1646 case MONO_MARSHAL_CONV_SB_LPWSTR:
1647 return mono_string_builder_to_utf16;
1648 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1649 return mono_array_to_savearray;
1650 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1651 return mono_array_to_lparray;
1652 case MONO_MARSHAL_FREE_LPARRAY:
1653 return mono_free_lparray;
1654 case MONO_MARSHAL_CONV_DEL_FTN:
1655 return mono_delegate_to_ftnptr;
1656 case MONO_MARSHAL_CONV_FTN_DEL:
1657 *ind_store_type = CEE_STIND_REF;
1658 return mono_ftnptr_to_delegate;
1659 case MONO_MARSHAL_CONV_LPSTR_SB:
1660 *ind_store_type = CEE_STIND_REF;
1661 return mono_string_utf8_to_builder;
1662 case MONO_MARSHAL_CONV_LPTSTR_SB:
1663 *ind_store_type = CEE_STIND_REF;
1665 return mono_string_utf16_to_builder;
1667 return mono_string_utf8_to_builder;
1669 case MONO_MARSHAL_CONV_LPWSTR_SB:
1670 *ind_store_type = CEE_STIND_REF;
1671 return mono_string_utf16_to_builder;
1672 case MONO_MARSHAL_FREE_ARRAY:
1673 return mono_marshal_free_array;
1674 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1675 return mono_string_to_byvalstr;
1676 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1677 return mono_string_to_byvalwstr;
1679 g_assert_not_reached ();
1686 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1692 case MONO_MARSHAL_CONV_BOOL_I4:
1693 mono_mb_emit_ldloc (mb, 1);
1694 mono_mb_emit_ldloc (mb, 0);
1695 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1696 mono_mb_emit_byte (mb, CEE_STIND_I4);
1698 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1699 mono_mb_emit_ldloc (mb, 1);
1700 mono_mb_emit_ldloc (mb, 0);
1701 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1702 mono_mb_emit_byte (mb, CEE_NEG);
1703 mono_mb_emit_byte (mb, CEE_STIND_I2);
1705 case MONO_MARSHAL_CONV_STR_LPWSTR:
1706 case MONO_MARSHAL_CONV_STR_LPSTR:
1707 case MONO_MARSHAL_CONV_STR_LPTSTR:
1708 case MONO_MARSHAL_CONV_STR_BSTR:
1709 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1710 case MONO_MARSHAL_CONV_STR_TBSTR: {
1713 /* free space if free == true */
1714 mono_mb_emit_ldloc (mb, 2);
1715 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1716 mono_mb_emit_ldloc (mb, 1);
1717 mono_mb_emit_byte (mb, CEE_LDIND_I);
1718 mono_mb_emit_icall (mb, g_free);
1719 mono_mb_patch_short_branch (mb, pos);
1721 mono_mb_emit_ldloc (mb, 1);
1722 mono_mb_emit_ldloc (mb, 0);
1723 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1724 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1725 mono_mb_emit_byte (mb, stind_op);
1728 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1729 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1730 case MONO_MARSHAL_CONV_DEL_FTN:
1731 mono_mb_emit_ldloc (mb, 1);
1732 mono_mb_emit_ldloc (mb, 0);
1733 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1734 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1735 mono_mb_emit_byte (mb, stind_op);
1737 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1738 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1741 mono_mb_emit_ldloc (mb, 1); /* dst */
1742 mono_mb_emit_ldloc (mb, 0);
1743 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1744 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1745 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1748 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1749 MonoClass *eklass = NULL;
1752 if (type->type == MONO_TYPE_SZARRAY) {
1753 eklass = type->data.klass;
1755 g_assert_not_reached ();
1758 if (eklass->valuetype)
1759 esize = mono_class_native_size (eklass, NULL);
1761 esize = sizeof (gpointer);
1763 mono_mb_emit_ldloc (mb, 0);
1764 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1765 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1767 if (eklass->blittable) {
1768 mono_mb_emit_ldloc (mb, 1);
1769 mono_mb_emit_ldloc (mb, 0);
1770 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1771 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1772 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1773 mono_mb_emit_byte (mb, CEE_PREFIX1);
1774 mono_mb_emit_byte (mb, CEE_CPBLK);
1776 int array_var, src_var, dst_var, index_var;
1777 guint32 label2, label3;
1779 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1780 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1781 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1784 mono_mb_emit_ldloc (mb, 0);
1785 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1786 mono_mb_emit_stloc (mb, array_var);
1788 /* save the old src pointer */
1789 mono_mb_emit_ldloc (mb, 0);
1790 mono_mb_emit_stloc (mb, src_var);
1791 /* save the old dst pointer */
1792 mono_mb_emit_ldloc (mb, 1);
1793 mono_mb_emit_stloc (mb, dst_var);
1795 /* Emit marshalling loop */
1796 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1797 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1798 mono_mb_emit_stloc (mb, index_var);
1801 label2 = mono_mb_get_label (mb);
1802 mono_mb_emit_ldloc (mb, index_var);
1803 mono_mb_emit_ldloc (mb, array_var);
1804 mono_mb_emit_byte (mb, CEE_LDLEN);
1805 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1808 mono_mb_emit_ldloc (mb, array_var);
1809 mono_mb_emit_ldloc (mb, index_var);
1810 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1811 mono_mb_emit_stloc (mb, 0);
1813 /* dst is already set */
1815 /* Do the conversion */
1816 emit_struct_conv (mb, eklass, FALSE);
1819 mono_mb_emit_add_to_local (mb, index_var, 1);
1821 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1823 mono_mb_patch_branch (mb, label3);
1825 /* restore the old src pointer */
1826 mono_mb_emit_ldloc (mb, src_var);
1827 mono_mb_emit_stloc (mb, 0);
1828 /* restore the old dst pointer */
1829 mono_mb_emit_ldloc (mb, dst_var);
1830 mono_mb_emit_stloc (mb, 1);
1833 mono_mb_patch_branch (mb, pos);
1836 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1837 mono_mb_emit_ldloc (mb, 0);
1838 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1839 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1841 mono_mb_emit_ldloc (mb, 1);
1842 mono_mb_emit_ldloc (mb, 0);
1843 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1844 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1845 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1846 mono_mb_patch_short_branch (mb, pos);
1849 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1850 int src_var, dst_var;
1852 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1853 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1855 mono_mb_emit_ldloc (mb, 0);
1856 mono_mb_emit_byte (mb, CEE_LDIND_I);
1857 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1859 /* save the old src pointer */
1860 mono_mb_emit_ldloc (mb, 0);
1861 mono_mb_emit_stloc (mb, src_var);
1862 /* save the old dst pointer */
1863 mono_mb_emit_ldloc (mb, 1);
1864 mono_mb_emit_stloc (mb, dst_var);
1866 /* src = pointer to object data */
1867 mono_mb_emit_ldloc (mb, 0);
1868 mono_mb_emit_byte (mb, CEE_LDIND_I);
1869 mono_mb_emit_icon (mb, sizeof (MonoObject));
1870 mono_mb_emit_byte (mb, CEE_ADD);
1871 mono_mb_emit_stloc (mb, 0);
1873 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1875 /* restore the old src pointer */
1876 mono_mb_emit_ldloc (mb, src_var);
1877 mono_mb_emit_stloc (mb, 0);
1878 /* restore the old dst pointer */
1879 mono_mb_emit_ldloc (mb, dst_var);
1880 mono_mb_emit_stloc (mb, 1);
1882 mono_mb_patch_branch (mb, pos);
1887 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1888 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1889 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1890 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1892 #endif /* DISABLE_COM */
1894 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1897 mono_mb_emit_ldloc (mb, 0);
1898 mono_mb_emit_byte (mb, CEE_LDIND_I);
1899 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1900 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1901 mono_mb_patch_branch (mb, pos);
1903 /* Pull the handle field from SafeHandle */
1904 mono_mb_emit_ldloc (mb, 1);
1905 mono_mb_emit_ldloc (mb, 0);
1906 mono_mb_emit_byte (mb, CEE_LDIND_I);
1907 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1908 mono_mb_emit_byte (mb, CEE_LDIND_I);
1909 mono_mb_emit_byte (mb, CEE_STIND_I);
1913 case MONO_MARSHAL_CONV_HANDLEREF: {
1914 mono_mb_emit_ldloc (mb, 1);
1915 mono_mb_emit_ldloc (mb, 0);
1916 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1917 mono_mb_emit_byte (mb, CEE_ADD);
1918 mono_mb_emit_byte (mb, CEE_LDIND_I);
1919 mono_mb_emit_byte (mb, CEE_STIND_I);
1924 g_error ("marshalling conversion %d not implemented", conv);
1930 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
1931 MonoMarshalNative string_encoding)
1933 MonoMarshalType *info;
1937 emit_struct_conv(mb, klass->parent, to_object);
1939 info = mono_marshal_load_type_info (klass);
1941 if (info->native_size == 0)
1944 if (klass->blittable) {
1945 int msize = mono_class_value_size (klass, NULL);
1946 g_assert (msize == info->native_size);
1947 mono_mb_emit_ldloc (mb, 1);
1948 mono_mb_emit_ldloc (mb, 0);
1949 mono_mb_emit_icon (mb, msize);
1950 mono_mb_emit_byte (mb, CEE_PREFIX1);
1951 mono_mb_emit_byte (mb, CEE_CPBLK);
1953 mono_mb_emit_add_to_local (mb, 0, msize);
1954 mono_mb_emit_add_to_local (mb, 1, msize);
1958 if (klass != mono_class_try_get_safehandle_class ()) {
1959 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1960 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
1961 mono_type_full_name (&klass->byval_arg));
1962 mono_mb_emit_exception_marshal_directive (mb, msg);
1967 for (i = 0; i < info->num_fields; i++) {
1968 MonoMarshalNative ntype;
1969 MonoMarshalConv conv;
1970 MonoType *ftype = info->fields [i].field->type;
1973 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
1975 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
1978 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
1981 msize = klass->instance_size - info->fields [i].field->offset;
1982 usize = info->native_size - info->fields [i].offset;
1984 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
1985 usize = info->fields [i + 1].offset - info->fields [i].offset;
1988 if (klass != mono_class_try_get_safehandle_class ()){
1990 * FIXME: Should really check for usize==0 and msize>0, but we apply
1991 * the layout to the managed structure as well.
1994 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
1995 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
1996 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
1997 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
1998 "reference field at the same offset as another field.",
1999 mono_type_full_name (&klass->byval_arg));
2004 case MONO_MARSHAL_CONV_NONE: {
2007 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2008 g_assert (!ftype->byref);
2009 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2010 mono_mb_emit_ldloc (mb, 1);
2011 mono_mb_emit_ldloc (mb, 0);
2012 mono_mb_emit_byte (mb, CEE_LDIND_I);
2013 mono_mb_emit_byte (mb, CEE_STIND_I);
2024 case MONO_TYPE_BOOLEAN:
2027 case MONO_TYPE_CHAR:
2033 mono_mb_emit_ldloc (mb, 1);
2034 mono_mb_emit_ldloc (mb, 0);
2035 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2037 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2038 mono_mb_emit_byte (mb, CEE_STIND_I2);
2040 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2041 mono_mb_emit_byte (mb, CEE_STIND_I1);
2044 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2045 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2048 case MONO_TYPE_VALUETYPE: {
2049 int src_var, dst_var;
2051 if (ftype->data.klass->enumtype) {
2052 ftype = mono_class_enum_basetype (ftype->data.klass);
2056 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2057 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2059 /* save the old src pointer */
2060 mono_mb_emit_ldloc (mb, 0);
2061 mono_mb_emit_stloc (mb, src_var);
2062 /* save the old dst pointer */
2063 mono_mb_emit_ldloc (mb, 1);
2064 mono_mb_emit_stloc (mb, dst_var);
2066 emit_struct_conv (mb, ftype->data.klass, to_object);
2068 /* restore the old src pointer */
2069 mono_mb_emit_ldloc (mb, src_var);
2070 mono_mb_emit_stloc (mb, 0);
2071 /* restore the old dst pointer */
2072 mono_mb_emit_ldloc (mb, dst_var);
2073 mono_mb_emit_stloc (mb, 1);
2076 case MONO_TYPE_OBJECT: {
2079 static MonoMethod *variant_clear = NULL;
2080 static MonoMethod *get_object_for_native_variant = NULL;
2083 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2084 if (!get_object_for_native_variant)
2085 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2086 mono_mb_emit_ldloc (mb, 1);
2087 mono_mb_emit_ldloc (mb, 0);
2088 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2089 mono_mb_emit_byte (mb, CEE_STIND_REF);
2091 mono_mb_emit_ldloc (mb, 0);
2092 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2095 static MonoMethod *get_native_variant_for_object = NULL;
2097 if (!get_native_variant_for_object)
2098 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2100 mono_mb_emit_ldloc (mb, 0);
2101 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2102 mono_mb_emit_ldloc (mb, 1);
2103 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2106 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2107 mono_mb_emit_exception_marshal_directive (mb, msg);
2113 g_warning ("marshaling type %02x not implemented", ftype->type);
2114 g_assert_not_reached ();
2119 int src_var, dst_var;
2121 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2122 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2124 /* save the old src pointer */
2125 mono_mb_emit_ldloc (mb, 0);
2126 mono_mb_emit_stloc (mb, src_var);
2127 /* save the old dst pointer */
2128 mono_mb_emit_ldloc (mb, 1);
2129 mono_mb_emit_stloc (mb, dst_var);
2132 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2134 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2136 /* restore the old src pointer */
2137 mono_mb_emit_ldloc (mb, src_var);
2138 mono_mb_emit_stloc (mb, 0);
2139 /* restore the old dst pointer */
2140 mono_mb_emit_ldloc (mb, dst_var);
2141 mono_mb_emit_stloc (mb, 1);
2146 mono_mb_emit_add_to_local (mb, 0, usize);
2147 mono_mb_emit_add_to_local (mb, 1, msize);
2149 mono_mb_emit_add_to_local (mb, 0, msize);
2150 mono_mb_emit_add_to_local (mb, 1, usize);
2156 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2158 emit_struct_conv_full (mb, klass, to_object, (MonoMarshalNative)-1);
2162 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2164 /* Call DestroyStructure */
2165 /* FIXME: Only do this if needed */
2166 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2167 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2168 mono_mb_emit_ldloc (mb, struct_var);
2169 mono_mb_emit_icall (mb, mono_struct_delete_old);
2173 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2175 int pos_noabort, pos_noex;
2177 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2178 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2179 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2180 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2182 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2183 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2185 mono_mb_emit_icall (mb, checkpoint_func);
2186 /* Throw the exception returned by the checkpoint function, if any */
2187 mono_mb_emit_byte (mb, CEE_DUP);
2188 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2189 mono_mb_emit_byte (mb, CEE_THROW);
2190 mono_mb_patch_branch (mb, pos_noex);
2191 mono_mb_emit_byte (mb, CEE_POP);
2193 mono_mb_patch_branch (mb, pos_noabort);
2197 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2199 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2202 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2206 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2208 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2212 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2214 emit_thread_interrupt_checkpoint (mb);
2218 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2220 emit_thread_force_interrupt_checkpoint (mb);
2223 #endif /* DISABLE_JIT */
2225 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2226 static MonoAsyncResult *
2227 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2230 MonoMulticastDelegate *mcast_delegate;
2234 g_assert (delegate);
2235 mcast_delegate = (MonoMulticastDelegate *) delegate;
2236 if (mcast_delegate->delegates != NULL) {
2237 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2241 #ifndef DISABLE_REMOTING
2242 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2243 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2244 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2245 /* If the target is a proxy, make a direct call. Is proxy's work
2246 // to make the call asynchronous.
2248 MonoMethodMessage *msg;
2249 MonoDelegate *async_callback;
2251 MonoAsyncResult *ares;
2253 MonoArray *out_args;
2254 method = delegate->method;
2256 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2257 if (mono_error_set_pending_exception (&error))
2259 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2260 if (mono_error_set_pending_exception (&error))
2262 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2263 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2264 MONO_OBJECT_SETREF (msg, async_result, ares);
2265 msg->call_type = CallType_BeginInvoke;
2268 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2269 if (!mono_error_ok (&error)) {
2270 mono_error_set_pending_exception (&error);
2274 mono_set_pending_exception ((MonoException *) exc);
2280 klass = delegate->object.vtable->klass;
2282 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2284 method = mono_get_delegate_invoke (klass);
2287 MonoAsyncResult *result = mono_threadpool_ms_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2288 mono_error_set_pending_exception (&error);
2295 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2297 int i, params_var, tmp_var;
2299 /* allocate local (pointer) *params[] */
2300 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2301 /* allocate local (pointer) tmp */
2302 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2304 /* alloate space on stack to store an array of pointers to the arguments */
2305 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2306 mono_mb_emit_byte (mb, CEE_PREFIX1);
2307 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2308 mono_mb_emit_stloc (mb, params_var);
2311 mono_mb_emit_ldloc (mb, params_var);
2312 mono_mb_emit_stloc (mb, tmp_var);
2314 if (save_this && sig->hasthis) {
2315 mono_mb_emit_ldloc (mb, tmp_var);
2316 mono_mb_emit_ldarg_addr (mb, 0);
2317 mono_mb_emit_byte (mb, CEE_STIND_I);
2318 /* tmp = tmp + sizeof (gpointer) */
2319 if (sig->param_count)
2320 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2324 for (i = 0; i < sig->param_count; i++) {
2325 mono_mb_emit_ldloc (mb, tmp_var);
2326 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2327 mono_mb_emit_byte (mb, CEE_STIND_I);
2328 /* tmp = tmp + sizeof (gpointer) */
2329 if (i < (sig->param_count - 1))
2330 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2336 #endif /* DISABLE_JIT */
2339 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2343 GString *res = g_string_new ("");
2346 g_string_append (res, prefix);
2347 g_string_append_c (res, '_');
2350 mono_type_get_desc (res, sig->ret, FALSE);
2353 g_string_append (res, "__this__");
2355 for (i = 0; i < sig->param_count; ++i) {
2356 g_string_append_c (res, '_');
2357 mono_type_get_desc (res, sig->params [i], FALSE);
2360 g_string_free (res, FALSE);
2365 * mono_marshal_get_string_encoding:
2367 * Return the string encoding which should be used for a given parameter.
2369 static MonoMarshalNative
2370 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2372 /* First try the parameter marshal info */
2374 if (spec->native == MONO_NATIVE_LPARRAY) {
2375 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2376 return spec->data.array_data.elem_type;
2379 return spec->native;
2383 return MONO_NATIVE_LPSTR;
2385 /* Then try the method level marshal info */
2386 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2387 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2388 return MONO_NATIVE_LPSTR;
2389 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2390 return MONO_NATIVE_LPWSTR;
2391 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2393 return MONO_NATIVE_LPWSTR;
2395 return MONO_NATIVE_LPSTR;
2398 return MONO_NATIVE_LPSTR;
2402 static MonoMarshalConv
2403 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2405 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2408 case MONO_NATIVE_LPWSTR:
2409 return MONO_MARSHAL_CONV_STR_LPWSTR;
2410 case MONO_NATIVE_LPSTR:
2411 case MONO_NATIVE_VBBYREFSTR:
2412 return MONO_MARSHAL_CONV_STR_LPSTR;
2413 case MONO_NATIVE_LPTSTR:
2414 return MONO_MARSHAL_CONV_STR_LPTSTR;
2415 case MONO_NATIVE_BSTR:
2416 return MONO_MARSHAL_CONV_STR_BSTR;
2418 return MONO_MARSHAL_CONV_INVALID;
2422 static MonoMarshalConv
2423 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2425 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2428 case MONO_NATIVE_LPWSTR:
2429 return MONO_MARSHAL_CONV_SB_LPWSTR;
2431 case MONO_NATIVE_LPSTR:
2432 return MONO_MARSHAL_CONV_SB_LPSTR;
2434 case MONO_NATIVE_LPTSTR:
2435 return MONO_MARSHAL_CONV_SB_LPTSTR;
2438 return MONO_MARSHAL_CONV_INVALID;
2442 static MonoMarshalConv
2443 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2445 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2450 case MONO_NATIVE_LPWSTR:
2452 return MONO_MARSHAL_CONV_LPWSTR_STR;
2453 case MONO_NATIVE_LPSTR:
2454 case MONO_NATIVE_VBBYREFSTR:
2455 return MONO_MARSHAL_CONV_LPSTR_STR;
2456 case MONO_NATIVE_LPTSTR:
2457 return MONO_MARSHAL_CONV_LPTSTR_STR;
2458 case MONO_NATIVE_BSTR:
2459 return MONO_MARSHAL_CONV_BSTR_STR;
2461 return MONO_MARSHAL_CONV_INVALID;
2465 static MonoMarshalConv
2466 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2468 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2473 case MONO_NATIVE_LPWSTR:
2475 * mono_string_builder_to_utf16 does not allocate a
2476 * new buffer, so no need to free it.
2479 return MONO_MARSHAL_CONV_LPWSTR_SB;
2480 case MONO_NATIVE_LPSTR:
2481 return MONO_MARSHAL_CONV_LPSTR_SB;
2483 case MONO_NATIVE_LPTSTR:
2484 return MONO_MARSHAL_CONV_LPTSTR_SB;
2487 return MONO_MARSHAL_CONV_INVALID;
2492 * Return whenever a field of a native structure or an array member needs to
2496 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2498 MonoMarshalNative encoding;
2501 case MONO_TYPE_VALUETYPE:
2502 /* FIXME: Optimize this */
2504 case MONO_TYPE_OBJECT:
2505 case MONO_TYPE_CLASS:
2506 if (t->data.klass == mono_defaults.stringbuilder_class) {
2508 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2512 case MONO_TYPE_STRING:
2513 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2514 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2521 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2524 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2527 mono_marshal_lock ();
2530 g_hash_table_new (hash_func, equal_func);
2531 mono_memory_barrier ();
2534 mono_marshal_unlock ();
2540 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2542 return get_cache (var, hash_func, equal_func);
2546 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2550 mono_marshal_lock ();
2551 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2552 mono_marshal_unlock ();
2559 * Create a MonoMethod from MB, set INFO as wrapper info.
2562 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2563 int max_stack, WrapperInfo *info)
2567 res = mono_mb_create_method (mb, sig, max_stack);
2569 mono_marshal_set_wrapper_info (res, info);
2573 /* Create the method from the builder and place it in the cache */
2575 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2576 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2577 int max_stack, WrapperInfo *info, gboolean *out_found)
2584 mono_marshal_lock ();
2585 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2586 mono_marshal_unlock ();
2589 newm = mono_mb_create_method (mb, sig, max_stack);
2590 mono_marshal_lock ();
2591 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2594 g_hash_table_insert (cache, key, res);
2595 mono_marshal_set_wrapper_info (res, info);
2596 mono_marshal_unlock ();
2600 mono_marshal_unlock ();
2601 mono_free_method (newm);
2609 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2610 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2613 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2617 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2620 int wrapper_type = wrapper->wrapper_type;
2623 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2626 info = mono_marshal_get_wrapper_info (wrapper);
2628 switch (wrapper_type) {
2629 case MONO_WRAPPER_REMOTING_INVOKE:
2630 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2631 case MONO_WRAPPER_XDOMAIN_INVOKE:
2632 m = info->d.remoting.method;
2633 if (wrapper->is_inflated) {
2637 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2638 * contains an uninflated method.
2640 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2641 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2645 case MONO_WRAPPER_SYNCHRONIZED:
2646 m = info->d.synchronized.method;
2647 if (wrapper->is_inflated) {
2650 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2651 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2655 case MONO_WRAPPER_UNBOX:
2656 return info->d.unbox.method;
2657 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2658 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2659 return info->d.managed_to_native.method;
2662 case MONO_WRAPPER_RUNTIME_INVOKE:
2663 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2664 return info->d.runtime_invoke.method;
2673 * mono_marshal_get_wrapper_info:
2675 * Retrieve the WrapperInfo structure associated with WRAPPER.
2678 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2680 g_assert (wrapper->wrapper_type);
2682 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2686 * mono_marshal_set_wrapper_info:
2688 * Set the WrapperInfo structure associated with the wrapper
2689 * method METHOD to INFO.
2692 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2696 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2699 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2704 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2708 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2709 info->subtype = subtype;
2714 * get_wrapper_target_class:
2716 * Return the class where a wrapper method should be placed.
2719 get_wrapper_target_class (MonoImage *image)
2726 * - can't put all wrappers into an mscorlib class, because they reference
2727 * metadata (signature) so they should be put into the same image as the
2728 * method they wrap, so they are unloaded together.
2729 * - putting them into a class with a type initalizer could cause the
2730 * initializer to be executed which can be a problem if the wrappers are
2732 * - putting them into an inflated class can cause problems if the the
2733 * class is deleted because it references an image which is unloaded.
2734 * To avoid these problems, we put the wrappers into the <Module> class of
2737 if (image_is_dynamic (image)) {
2738 klass = ((MonoDynamicImage*)image)->wrappers_type;
2740 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2741 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2749 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2750 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2754 * check_generic_wrapper_cache:
2756 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2757 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2758 * generic method definition.
2761 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2764 MonoMethod *inst, *def;
2765 MonoGenericContext *ctx;
2767 g_assert (orig_method->is_inflated);
2768 ctx = mono_method_get_context (orig_method);
2771 * Look for the instance
2773 res = mono_marshal_find_in_cache (cache, key);
2778 * Look for the definition
2780 def = mono_marshal_find_in_cache (cache, def_key);
2783 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2784 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2786 mono_memory_barrier ();
2787 mono_marshal_lock ();
2788 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2790 g_hash_table_insert (cache, key, inst);
2793 mono_marshal_unlock ();
2800 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2803 MonoMethod *inst, *res;
2806 * We use the same cache for the generic definition and the instances.
2808 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2809 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2810 mono_memory_barrier ();
2811 mono_marshal_lock ();
2812 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2814 g_hash_table_insert (cache, key, inst);
2817 mono_marshal_unlock ();
2822 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
2826 MonoMethod *inst, *def;
2829 * Look for the instance
2831 res = mono_marshal_find_in_cache (cache, orig_method->klass);
2836 * Look for the definition
2838 def = mono_marshal_find_in_cache (cache, def_method->klass);
2840 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2841 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2844 mono_memory_barrier ();
2845 mono_marshal_lock ();
2846 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2848 g_hash_table_insert (cache, orig_method->klass, inst);
2851 mono_marshal_unlock ();
2858 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
2861 MonoMethod *inst, *res;
2864 * We use the same cache for the generic definition and the instances.
2866 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2867 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2869 mono_memory_barrier ();
2870 mono_marshal_lock ();
2871 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
2873 g_hash_table_insert (cache, orig_method->klass, inst);
2876 mono_marshal_unlock ();
2881 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2883 MonoMethodSignature *sig;
2884 MonoMethodBuilder *mb;
2889 MonoGenericContext *ctx = NULL;
2890 MonoMethod *orig_method = NULL;
2892 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2893 !strcmp (method->name, "BeginInvoke"));
2896 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
2898 if (method->is_inflated) {
2899 orig_method = method;
2900 ctx = &((MonoMethodInflated*)method)->context;
2901 method = ((MonoMethodInflated*)method)->declaring;
2904 sig = mono_signature_no_pinvoke (method);
2910 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
2911 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
2915 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
2916 (GHashFunc)mono_signature_hash,
2917 (GCompareFunc)mono_metadata_signature_equal);
2918 if ((res = mono_marshal_find_in_cache (cache, sig)))
2922 g_assert (sig->hasthis);
2924 name = mono_signature_to_name (sig, "begin_invoke");
2926 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2928 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2932 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2934 mono_mb_emit_ldarg (mb, 0);
2935 mono_mb_emit_ldloc (mb, params_var);
2936 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2937 mono_mb_emit_byte (mb, CEE_RET);
2942 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
2943 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
2945 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2952 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2954 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2957 MonoDomain *domain = mono_domain_get ();
2958 MonoAsyncResult *ares;
2959 MonoMethod *method = NULL;
2960 MonoMethodSignature *sig;
2961 MonoMethodMessage *msg;
2962 MonoObject *res, *exc;
2963 MonoArray *out_args;
2966 g_assert (delegate);
2968 if (!delegate->method_info) {
2969 g_assert (delegate->method);
2970 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
2971 if (!mono_error_ok (&error)) {
2972 mono_error_set_pending_exception (&error);
2975 MONO_OBJECT_SETREF (delegate, method_info, rm);
2978 if (!delegate->method_info || !delegate->method_info->method)
2979 g_assert_not_reached ();
2981 klass = delegate->object.vtable->klass;
2983 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2984 g_assert (method != NULL);
2986 sig = mono_signature_no_pinvoke (method);
2988 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
2989 if (mono_error_set_pending_exception (&error))
2992 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
2994 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingException", "The async result object is null or of an unexpected type."));
2998 if (ares->async_delegate != (MonoObject*)delegate) {
2999 mono_set_pending_exception (mono_get_exception_invalid_operation (
3000 "The IAsyncResult object provided does not match this delegate."));
3004 #ifndef DISABLE_REMOTING
3005 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3006 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3007 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3008 if (!mono_error_ok (&error)) {
3009 mono_error_set_pending_exception (&error);
3012 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3013 if (mono_error_set_pending_exception (&error))
3015 msg->call_type = CallType_EndInvoke;
3016 MONO_OBJECT_SETREF (msg, async_result, ares);
3017 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3018 if (!mono_error_ok (&error)) {
3019 mono_error_set_pending_exception (&error);
3025 res = mono_threadpool_ms_end_invoke (ares, &out_args, &exc, &error);
3026 if (mono_error_set_pending_exception (&error))
3031 if (((MonoException*)exc)->stack_trace) {
3032 MonoError inner_error;
3033 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3034 if (is_ok (&inner_error)) {
3036 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3038 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3041 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3043 mono_set_pending_exception ((MonoException*)exc);
3046 mono_method_return_message_restore (method, params, out_args, &error);
3047 mono_error_set_pending_exception (&error);
3054 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3056 MonoType *t = mono_type_get_underlying_type (return_type);
3058 if (return_type->byref)
3059 return_type = &mono_defaults.int_class->byval_arg;
3062 case MONO_TYPE_VOID:
3063 g_assert_not_reached ();
3066 case MONO_TYPE_STRING:
3067 case MONO_TYPE_CLASS:
3068 case MONO_TYPE_OBJECT:
3069 case MONO_TYPE_ARRAY:
3070 case MONO_TYPE_SZARRAY:
3074 case MONO_TYPE_BOOLEAN:
3077 case MONO_TYPE_CHAR:
3087 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3088 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3090 case MONO_TYPE_GENERICINST:
3091 if (!mono_type_generic_inst_is_valuetype (t))
3094 case MONO_TYPE_VALUETYPE: {
3095 MonoClass *klass = mono_class_from_mono_type (return_type);
3096 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3097 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3101 case MONO_TYPE_MVAR: {
3102 MonoClass *klass = mono_class_from_mono_type (return_type);
3103 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3107 g_warning ("type 0x%x not handled", return_type->type);
3108 g_assert_not_reached ();
3111 mono_mb_emit_byte (mb, CEE_RET);
3114 #endif /* DISABLE_JIT */
3117 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3119 MonoMethodSignature *sig;
3120 MonoMethodBuilder *mb;
3125 MonoGenericContext *ctx = NULL;
3126 MonoMethod *orig_method = NULL;
3128 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3129 !strcmp (method->name, "EndInvoke"));
3132 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3134 if (method->is_inflated) {
3135 orig_method = method;
3136 ctx = &((MonoMethodInflated*)method)->context;
3137 method = ((MonoMethodInflated*)method)->declaring;
3140 sig = mono_signature_no_pinvoke (method);
3146 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3147 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3151 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3152 (GHashFunc)mono_signature_hash,
3153 (GCompareFunc)mono_metadata_signature_equal);
3154 if ((res = mono_marshal_find_in_cache (cache, sig)))
3158 g_assert (sig->hasthis);
3160 name = mono_signature_to_name (sig, "end_invoke");
3162 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3164 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3168 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3170 mono_mb_emit_ldarg (mb, 0);
3171 mono_mb_emit_ldloc (mb, params_var);
3172 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3174 if (sig->ret->type == MONO_TYPE_VOID) {
3175 mono_mb_emit_byte (mb, CEE_POP);
3176 mono_mb_emit_byte (mb, CEE_RET);
3178 mono_mb_emit_restore_result (mb, sig->ret);
3183 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3184 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3186 res = mono_mb_create_and_cache (cache, sig,
3187 mb, sig, sig->param_count + 16);
3196 MonoMethodSignature *sig;
3198 } SignaturePointerPair;
3201 signature_pointer_pair_hash (gconstpointer data)
3203 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3205 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3209 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3211 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3212 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3216 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3218 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3220 return pair->pointer == user_data;
3224 free_signature_pointer_pair (SignaturePointerPair *pair)
3230 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3232 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3234 MonoMethodBuilder *mb;
3237 gpointer cache_key = NULL;
3238 SignaturePointerPair key;
3239 SignaturePointerPair *new_key;
3240 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3241 int pos0, pos1, pos2;
3243 MonoClass *target_class = NULL;
3244 gboolean closed_over_null = FALSE;
3245 MonoGenericContext *ctx = NULL;
3246 MonoGenericContainer *container = NULL;
3247 MonoMethod *orig_method = NULL;
3249 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3253 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3254 !strcmp (method->name, "Invoke"));
3256 invoke_sig = sig = mono_signature_no_pinvoke (method);
3259 * If the delegate target is null, and the target method is not static, a virtual
3260 * call is made to that method with the first delegate argument as this. This is
3261 * a non-documented .NET feature.
3264 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3265 if (target_method->is_inflated) {
3267 MonoType *target_type;
3269 g_assert (method->signature->hasthis);
3270 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3271 mono_method_get_context (method), &error);
3272 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3273 target_class = mono_class_from_mono_type (target_type);
3275 target_class = target_method->klass;
3278 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3281 if (static_method_with_first_arg_bound) {
3282 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3283 g_assert (!callvirt);
3284 invoke_sig = mono_method_signature (target_method);
3288 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3290 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3291 orig_method = method;
3292 ctx = &((MonoMethodInflated*)method)->context;
3293 method = ((MonoMethodInflated*)method)->declaring;
3295 container = mono_method_get_generic_container (method);
3297 container = method->klass->generic_container;
3298 g_assert (container);
3300 invoke_sig = sig = mono_signature_no_pinvoke (method);
3307 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3308 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3311 cache_key = method->klass;
3312 } else if (static_method_with_first_arg_bound) {
3313 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3314 (GHashFunc)mono_signature_hash,
3315 (GCompareFunc)mono_metadata_signature_equal);
3317 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3319 res = mono_marshal_find_in_cache (cache, invoke_sig);
3322 cache_key = invoke_sig;
3323 } else if (callvirt) {
3324 GHashTable **cache_ptr;
3326 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3328 /* We need to cache the signature+method pair */
3329 mono_marshal_lock ();
3331 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3333 key.sig = invoke_sig;
3334 key.pointer = target_method;
3335 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3336 mono_marshal_unlock ();
3340 // Inflated methods should not be in this cache because it's not stored on the imageset.
3341 g_assert (!method->is_inflated);
3342 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3343 (GHashFunc)mono_signature_hash,
3344 (GCompareFunc)mono_metadata_signature_equal);
3345 res = mono_marshal_find_in_cache (cache, sig);
3351 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3352 static_sig->hasthis = 0;
3353 if (!static_method_with_first_arg_bound)
3354 invoke_sig = static_sig;
3356 if (static_method_with_first_arg_bound)
3357 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3358 else if (closed_over_null)
3359 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3361 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3363 name = mono_signature_to_name (invoke_sig, "invoke");
3365 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3367 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3371 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3373 /* allocate local 0 (object) */
3374 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3375 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3376 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3377 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3378 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3381 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3383 g_assert (sig->hasthis);
3386 * {type: sig->ret} res;
3387 * if (delegates == null) {
3388 * return this.<target> ( args .. );
3390 * int i = 0, len = this.delegates.Length;
3392 * res = this.delegates [i].Invoke ( args .. );
3393 * } while (++i < len);
3398 /* this wrapper can be used in unmanaged-managed transitions */
3399 emit_thread_interrupt_checkpoint (mb);
3401 /* delegates = this.delegates */
3402 mono_mb_emit_ldarg (mb, 0);
3403 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3404 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3405 mono_mb_emit_stloc (mb, local_delegates);
3408 /* if (delegates == null) */
3409 mono_mb_emit_ldloc (mb, local_delegates);
3410 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3412 /* return target.<target_method|method_ptr> ( args .. ); */
3414 /* target = d.target; */
3415 mono_mb_emit_ldarg (mb, 0);
3416 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3417 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3418 mono_mb_emit_stloc (mb, local_target);
3420 /*static methods with bound first arg can have null target and still be bound*/
3421 if (!static_method_with_first_arg_bound) {
3422 /* if target != null */
3423 mono_mb_emit_ldloc (mb, local_target);
3424 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3426 /* then call this->method_ptr nonstatic */
3429 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3431 mono_mb_emit_ldloc (mb, local_target);
3432 for (i = 0; i < sig->param_count; ++i)
3433 mono_mb_emit_ldarg (mb, i + 1);
3434 mono_mb_emit_ldarg (mb, 0);
3435 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3436 mono_mb_emit_byte (mb, CEE_LDIND_I);
3437 mono_mb_emit_ldarg (mb, 0);
3438 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3439 mono_mb_emit_byte (mb, CEE_LDIND_I);
3440 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3441 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3442 mono_mb_emit_byte (mb, CEE_RET);
3445 /* else [target == null] call this->method_ptr static */
3446 mono_mb_patch_branch (mb, pos0);
3450 if (!closed_over_null) {
3451 if (target_class->valuetype) {
3452 mono_mb_emit_ldarg (mb, 1);
3453 for (i = 1; i < sig->param_count; ++i)
3454 mono_mb_emit_ldarg (mb, i + 1);
3455 mono_mb_emit_op (mb, CEE_CALL, target_method);
3457 mono_mb_emit_ldarg (mb, 1);
3458 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3459 for (i = 1; i < sig->param_count; ++i)
3460 mono_mb_emit_ldarg (mb, i + 1);
3461 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3464 mono_mb_emit_byte (mb, CEE_LDNULL);
3465 for (i = 0; i < sig->param_count; ++i)
3466 mono_mb_emit_ldarg (mb, i + 1);
3467 mono_mb_emit_op (mb, CEE_CALL, target_method);
3470 if (static_method_with_first_arg_bound) {
3471 mono_mb_emit_ldloc (mb, local_target);
3472 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3473 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3475 for (i = 0; i < sig->param_count; ++i)
3476 mono_mb_emit_ldarg (mb, i + 1);
3477 mono_mb_emit_ldarg (mb, 0);
3478 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3479 mono_mb_emit_byte (mb, CEE_LDIND_I);
3480 mono_mb_emit_ldarg (mb, 0);
3481 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3482 mono_mb_emit_byte (mb, CEE_LDIND_I);
3483 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3484 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3487 mono_mb_emit_byte (mb, CEE_RET);
3489 /* else [delegates != null] */
3490 mono_mb_patch_branch (mb, pos2);
3492 /* len = delegates.Length; */
3493 mono_mb_emit_ldloc (mb, local_delegates);
3494 mono_mb_emit_byte (mb, CEE_LDLEN);
3495 mono_mb_emit_byte (mb, CEE_CONV_I4);
3496 mono_mb_emit_stloc (mb, local_len);
3499 mono_mb_emit_icon (mb, 0);
3500 mono_mb_emit_stloc (mb, local_i);
3502 pos1 = mono_mb_get_label (mb);
3504 /* d = delegates [i]; */
3505 mono_mb_emit_ldloc (mb, local_delegates);
3506 mono_mb_emit_ldloc (mb, local_i);
3507 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3508 mono_mb_emit_stloc (mb, local_d);
3510 /* res = d.Invoke ( args .. ); */
3511 mono_mb_emit_ldloc (mb, local_d);
3512 for (i = 0; i < sig->param_count; i++)
3513 mono_mb_emit_ldarg (mb, i + 1);
3515 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3518 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3519 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3522 mono_mb_emit_stloc (mb, local_res);
3525 mono_mb_emit_add_to_local (mb, local_i, 1);
3528 mono_mb_emit_ldloc (mb, local_i);
3529 mono_mb_emit_ldloc (mb, local_len);
3530 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3534 mono_mb_emit_ldloc (mb, local_res);
3535 mono_mb_emit_byte (mb, CEE_RET);
3537 mb->skip_visibility = 1;
3538 #endif /* DISABLE_JIT */
3540 info = mono_wrapper_info_create (mb, subtype);
3545 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3546 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3547 } else if (callvirt) {
3548 new_key = g_new0 (SignaturePointerPair, 1);
3551 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3555 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3559 /* mono_method_print_code (res); */
3565 * the returned method invokes all methods in a multicast delegate.
3568 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3570 gboolean callvirt = FALSE;
3571 gboolean static_method_with_first_arg_bound = FALSE;
3572 MonoMethod *target_method = NULL;
3573 MonoMethodSignature *sig;
3575 sig = mono_signature_no_pinvoke (method);
3577 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3579 target_method = del->method;
3582 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3583 static_method_with_first_arg_bound = TRUE;
3584 target_method = del->method;
3587 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3591 MonoMethodSignature *ctor_sig;
3592 MonoMethodSignature *sig;
3595 /* protected by the marshal lock, contains CtorSigPair pointers */
3596 static GSList *strsig_list = NULL;
3598 static MonoMethodSignature *
3599 lookup_string_ctor_signature (MonoMethodSignature *sig)
3601 MonoMethodSignature *callsig;
3605 mono_marshal_lock ();
3607 for (item = strsig_list; item; item = item->next) {
3608 cs = (CtorSigPair *)item->data;
3609 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3610 * because it is lock-free.
3612 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3617 mono_marshal_unlock ();
3621 static MonoMethodSignature *
3622 add_string_ctor_signature (MonoMethod *method)
3624 MonoMethodSignature *callsig;
3627 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3628 callsig->ret = &mono_defaults.string_class->byval_arg;
3629 cs = g_new (CtorSigPair, 1);
3631 cs->ctor_sig = mono_method_signature (method);
3633 mono_marshal_lock ();
3634 strsig_list = g_slist_prepend (strsig_list, cs);
3635 mono_marshal_unlock ();
3640 * mono_marshal_get_string_ctor_signature:
3642 * Return the modified signature used by string ctors (they return the newly created
3645 MonoMethodSignature*
3646 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3648 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3650 sig = add_string_ctor_signature (method);
3656 get_runtime_invoke_type (MonoType *t, gboolean ret)
3659 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3661 /* Can't share this with 'I' as that needs another indirection */
3662 return &mono_defaults.int_class->this_arg;
3665 if (MONO_TYPE_IS_REFERENCE (t))
3666 return &mono_defaults.object_class->byval_arg;
3669 /* The result needs to be boxed */
3674 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3677 return &mono_defaults.sbyte_class->byval_arg;
3679 return &mono_defaults.int16_class->byval_arg;
3681 return &mono_defaults.int32_class->byval_arg;
3684 return &mono_defaults.int64_class->byval_arg;
3685 case MONO_TYPE_BOOLEAN:
3686 return &mono_defaults.byte_class->byval_arg;
3687 case MONO_TYPE_CHAR:
3688 return &mono_defaults.uint16_class->byval_arg;
3690 return &mono_defaults.int_class->byval_arg;
3691 case MONO_TYPE_VALUETYPE:
3692 if (t->data.klass->enumtype) {
3693 t = mono_class_enum_basetype (t->data.klass);
3703 * mono_marshal_get_runtime_invoke_sig:
3705 * Return a common signature used for sharing runtime invoke wrappers.
3707 static MonoMethodSignature*
3708 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3710 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3713 res->generic_param_count = 0;
3714 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3715 for (i = 0; i < res->param_count; ++i)
3716 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3722 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3724 /* Can't share wrappers which return a vtype since it needs to be boxed */
3725 if (sig1->ret != sig2->ret && !(MONO_TYPE_IS_REFERENCE (sig1->ret) && MONO_TYPE_IS_REFERENCE (sig2->ret)) && !mono_metadata_type_equal (sig1->ret, sig2->ret))
3728 return mono_metadata_signature_equal (sig1, sig2);
3736 * Emit the call to the wrapper method from a runtime invoke wrapper.
3739 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3740 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3742 gboolean virtual_, gboolean need_direct_wrapper)
3744 static MonoString *string_dummy = NULL;
3746 int *tmp_nullable_locals;
3747 gboolean void_ret = FALSE;
3748 gboolean string_ctor = method && method->string_ctor;
3750 /* to make it work with our special string constructors */
3751 if (!string_dummy) {
3752 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3753 string_dummy = mono_string_new_wrapper ("dummy");
3757 g_assert (sig->hasthis);
3758 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3763 if (mono_gc_is_moving ()) {
3764 mono_mb_emit_ptr (mb, &string_dummy);
3765 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3767 mono_mb_emit_ptr (mb, string_dummy);
3770 mono_mb_emit_ldarg (mb, 0);
3774 tmp_nullable_locals = g_new0 (int, sig->param_count);
3776 for (i = 0; i < sig->param_count; i++) {
3777 MonoType *t = sig->params [i];
3780 mono_mb_emit_ldarg (mb, 1);
3782 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3783 mono_mb_emit_byte (mb, CEE_ADD);
3787 mono_mb_emit_byte (mb, CEE_LDIND_I);
3788 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3789 * So to make this work we unbox it to a local variablee and push a reference to that.
3791 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3792 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
3794 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
3795 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
3796 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
3801 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
3802 type = sig->params [i]->type;
3806 case MONO_TYPE_BOOLEAN:
3810 case MONO_TYPE_CHAR:
3819 mono_mb_emit_byte (mb, CEE_LDIND_I);
3820 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3822 case MONO_TYPE_STRING:
3823 case MONO_TYPE_CLASS:
3824 case MONO_TYPE_ARRAY:
3826 case MONO_TYPE_SZARRAY:
3827 case MONO_TYPE_OBJECT:
3828 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3830 case MONO_TYPE_GENERICINST:
3831 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
3832 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
3837 case MONO_TYPE_VALUETYPE:
3838 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
3839 type = mono_class_enum_basetype (t->data.klass)->type;
3842 mono_mb_emit_byte (mb, CEE_LDIND_I);
3843 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3844 /* Need to convert a boxed vtype to an mp to a Nullable struct */
3845 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
3846 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3848 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
3852 g_assert_not_reached ();
3857 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3858 } else if (need_direct_wrapper) {
3859 mono_mb_emit_op (mb, CEE_CALL, method);
3861 mono_mb_emit_ldarg (mb, 3);
3862 mono_mb_emit_calli (mb, callsig);
3865 if (sig->ret->byref) {
3867 g_assert_not_reached ();
3870 switch (sig->ret->type) {
3871 case MONO_TYPE_VOID:
3875 case MONO_TYPE_BOOLEAN:
3876 case MONO_TYPE_CHAR:
3889 case MONO_TYPE_VALUETYPE:
3890 case MONO_TYPE_TYPEDBYREF:
3891 case MONO_TYPE_GENERICINST:
3892 /* box value types */
3893 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
3895 case MONO_TYPE_STRING:
3896 case MONO_TYPE_CLASS:
3897 case MONO_TYPE_ARRAY:
3898 case MONO_TYPE_SZARRAY:
3899 case MONO_TYPE_OBJECT:
3903 /* The result is an IntPtr */
3904 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
3907 g_assert_not_reached ();
3911 mono_mb_emit_stloc (mb, loc_res);
3913 /* Convert back nullable-byref arguments */
3914 for (i = 0; i < sig->param_count; i++) {
3915 MonoType *t = sig->params [i];
3918 * Box the result and put it back into the array, the caller will have
3919 * to obtain it from there.
3921 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
3922 mono_mb_emit_ldarg (mb, 1);
3923 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3924 mono_mb_emit_byte (mb, CEE_ADD);
3926 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
3927 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
3929 mono_mb_emit_byte (mb, CEE_STIND_REF);
3933 g_free (tmp_nullable_locals);
3937 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
3938 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3939 gboolean virtual_, gboolean need_direct_wrapper)
3942 MonoExceptionClause *clause;
3943 int loc_res, loc_exc;
3945 /* The wrapper looks like this:
3951 * } catch (Exception e) {
3959 /* allocate local 0 (object) tmp */
3960 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3961 /* allocate local 1 (object) exc */
3962 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3964 /* *exc is assumed to be initialized to NULL by the caller */
3966 mono_mb_emit_byte (mb, CEE_LDARG_2);
3967 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
3972 labels [1] = mono_mb_get_label (mb);
3973 emit_thread_force_interrupt_checkpoint (mb);
3974 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
3976 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
3978 /* Add a try clause around the call */
3979 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
3980 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3981 clause->data.catch_class = mono_defaults.exception_class;
3982 clause->try_offset = labels [1];
3983 clause->try_len = mono_mb_get_label (mb) - labels [1];
3985 clause->handler_offset = mono_mb_get_label (mb);
3988 mono_mb_emit_stloc (mb, loc_exc);
3989 mono_mb_emit_byte (mb, CEE_LDARG_2);
3990 mono_mb_emit_ldloc (mb, loc_exc);
3991 mono_mb_emit_byte (mb, CEE_STIND_REF);
3993 mono_mb_emit_branch (mb, CEE_LEAVE);
3995 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
3997 mono_mb_set_clauses (mb, 1, clause);
3999 mono_mb_patch_branch (mb, labels [2]);
4000 mono_mb_emit_ldloc (mb, loc_res);
4001 mono_mb_emit_byte (mb, CEE_RET);
4006 mono_mb_patch_branch (mb, labels [0]);
4007 emit_thread_force_interrupt_checkpoint (mb);
4008 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4010 mono_mb_emit_ldloc (mb, 0);
4011 mono_mb_emit_byte (mb, CEE_RET);
4016 * generates IL code for the runtime invoke function
4017 * MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)
4019 * we also catch exceptions if exc != null
4020 * If VIRTUAL is TRUE, then METHOD is invoked virtually on THIS. This is useful since
4021 * it means that the compiled code for METHOD does not have to be looked up
4022 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4023 * its METHOD argument.
4026 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4028 MonoMethodSignature *sig, *csig, *callsig;
4029 MonoMethodBuilder *mb;
4030 GHashTable *cache = NULL;
4031 MonoClass *target_klass;
4032 MonoMethod *res = NULL;
4033 static MonoMethodSignature *cctor_signature = NULL;
4034 static MonoMethodSignature *finalize_signature = NULL;
4036 const char *param_names [16];
4037 gboolean need_direct_wrapper = FALSE;
4042 if (!cctor_signature) {
4043 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4044 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4046 if (!finalize_signature) {
4047 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4048 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4049 finalize_signature->hasthis = 1;
4053 need_direct_wrapper = TRUE;
4056 * Use a separate cache indexed by methods to speed things up and to avoid the
4057 * boundless mempool growth caused by the signature_dup stuff below.
4060 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4062 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4064 res = mono_marshal_find_in_cache (cache, method);
4068 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4069 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4071 * Array Get/Set/Address methods. The JIT implements them using inline code
4072 * so we need to create an invoke wrapper which calls the method directly.
4074 need_direct_wrapper = TRUE;
4077 if (method->string_ctor) {
4078 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4080 callsig = add_string_ctor_signature (method);
4081 /* Can't share this as we push a string as this */
4082 need_direct_wrapper = TRUE;
4084 if (method_is_dynamic (method))
4085 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4087 callsig = mono_method_signature (method);
4090 sig = mono_method_signature (method);
4092 target_klass = get_wrapper_target_class (method->klass->image);
4094 /* Try to share wrappers for non-corlib methods with simple signatures */
4095 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4096 callsig = cctor_signature;
4097 target_klass = mono_defaults.object_class;
4098 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4099 callsig = finalize_signature;
4100 target_klass = mono_defaults.object_class;
4103 if (need_direct_wrapper) {
4104 /* Already searched at the start */
4106 MonoMethodSignature *tmp_sig;
4108 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4109 GHashTable **cache_table = NULL;
4111 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4112 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4114 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4116 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4117 (GCompareFunc)runtime_invoke_signature_equal);
4119 /* from mono_marshal_find_in_cache */
4120 mono_marshal_lock ();
4121 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4122 mono_marshal_unlock ();
4129 /* Make a copy of the signature from the image mempool */
4131 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4135 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4137 csig->ret = &mono_defaults.object_class->byval_arg;
4138 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4139 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4141 csig->params [0] = &mono_defaults.object_class->byval_arg;
4142 csig->params [1] = &mono_defaults.int_class->byval_arg;
4143 csig->params [2] = &mono_defaults.int_class->byval_arg;
4144 csig->params [3] = &mono_defaults.int_class->byval_arg;
4147 /* This is called from runtime code so it has to be cdecl */
4148 csig->call_convention = MONO_CALL_C;
4151 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4152 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4156 param_names [0] = "this";
4157 param_names [1] = "params";
4158 param_names [2] = "exc";
4159 param_names [3] = "method";
4160 mono_mb_set_param_names (mb, param_names);
4162 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4165 if (need_direct_wrapper) {
4167 mb->skip_visibility = 1;
4169 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4170 info->d.runtime_invoke.method = method;
4171 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4173 /* taken from mono_mb_create_and_cache */
4174 mono_marshal_lock ();
4175 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4176 mono_marshal_unlock ();
4178 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4179 info->d.runtime_invoke.sig = callsig;
4181 /* Somebody may have created it before us */
4184 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4186 mono_marshal_lock ();
4187 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4189 GHashTable *direct_cache;
4191 g_hash_table_insert (cache, callsig, res);
4192 /* Can't insert it into wrapper_hash since the key is a signature */
4193 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4195 g_hash_table_insert (direct_cache, method, res);
4197 mono_free_method (newm);
4199 mono_marshal_unlock ();
4202 /* end mono_mb_create_and_cache */
4211 * mono_marshal_get_runtime_invoke_dynamic:
4213 * Return a method which can be used to invoke managed methods from native code
4215 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4216 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4217 * ARGS should point to an architecture specific structure containing
4218 * the arguments and space for the return value.
4219 * The other arguments are the same as for runtime_invoke (), except that
4220 * ARGS should contain the this argument too.
4221 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4222 * is only one copy of it, which is useful in full-aot.
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)
4451 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4453 MonoMethodSignature *csig, *csig2;
4454 MonoMethodBuilder *mb;
4459 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4460 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4463 g_assert (sig->pinvoke);
4465 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4467 mb->method->save_lmf = 1;
4469 /* Add an explicit this argument */
4471 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4473 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4477 mono_mb_emit_byte (mb, CEE_LDARG_0);
4479 for (i = 0; i < sig->param_count; i++)
4480 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4482 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4483 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4484 mono_mb_emit_calli (mb, csig2);
4485 if (check_exceptions)
4486 emit_thread_interrupt_checkpoint (mb);
4487 mono_mb_emit_byte (mb, CEE_RET);
4490 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4492 if (csig->call_convention == MONO_CALL_VARARG)
4493 csig->call_convention = 0;
4495 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4496 info->d.icall.func = (gpointer)func;
4497 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4504 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4505 MonoMarshalSpec *spec,
4506 int conv_arg, MonoType **conv_arg_type,
4507 MarshalAction action)
4510 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4511 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4517 static MonoClass *ICustomMarshaler = NULL;
4518 static MonoMethod *cleanup_native, *cleanup_managed;
4519 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4520 MonoMethod *get_instance = NULL;
4521 MonoMethodBuilder *mb = m->mb;
4522 char *exception_msg = NULL;
4526 if (!ICustomMarshaler) {
4527 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4529 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4530 goto handle_exception;
4533 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4534 g_assert (cleanup_native);
4535 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4536 g_assert (cleanup_managed);
4537 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4538 g_assert (marshal_managed_to_native);
4539 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4540 g_assert (marshal_native_to_managed);
4542 mono_memory_barrier ();
4543 ICustomMarshaler = klass;
4546 if (spec->data.custom_data.image)
4547 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4549 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4550 g_assert (mtype != NULL);
4551 mono_error_assert_ok (&error);
4552 mklass = mono_class_from_mono_type (mtype);
4553 g_assert (mklass != NULL);
4555 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4556 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4558 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4560 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4561 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4562 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4563 (get_sig->params [0]->type != MONO_TYPE_STRING))
4564 get_instance = NULL;
4568 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);
4571 /* Throw exception and emit compensation code if neccesary */
4572 if (exception_msg) {
4574 case MARSHAL_ACTION_CONV_IN:
4575 case MARSHAL_ACTION_CONV_RESULT:
4576 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4577 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4578 mono_mb_emit_byte (mb, CEE_POP);
4580 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4581 g_free (exception_msg);
4584 case MARSHAL_ACTION_PUSH:
4585 mono_mb_emit_byte (mb, CEE_LDNULL);
4593 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4594 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4597 case MARSHAL_ACTION_CONV_IN:
4599 case MONO_TYPE_CLASS:
4600 case MONO_TYPE_OBJECT:
4601 case MONO_TYPE_STRING:
4602 case MONO_TYPE_ARRAY:
4603 case MONO_TYPE_SZARRAY:
4604 case MONO_TYPE_VALUETYPE:
4608 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4609 g_assert_not_reached ();
4613 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4615 mono_mb_emit_byte (mb, CEE_LDNULL);
4616 mono_mb_emit_stloc (mb, conv_arg);
4618 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4621 /* Minic MS.NET behavior */
4622 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4625 /* Check for null */
4626 mono_mb_emit_ldarg (mb, argnum);
4628 mono_mb_emit_byte (mb, CEE_LDIND_I);
4629 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4631 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4633 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4635 mono_mb_emit_ldarg (mb, argnum);
4637 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4639 if (t->type == MONO_TYPE_VALUETYPE) {
4641 * Since we can't determine the type of the argument, we
4642 * will assume the unmanaged function takes a pointer.
4644 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4646 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4649 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4650 mono_mb_emit_stloc (mb, conv_arg);
4652 mono_mb_patch_branch (mb, pos2);
4655 case MARSHAL_ACTION_CONV_OUT:
4656 /* Check for null */
4657 mono_mb_emit_ldloc (mb, conv_arg);
4658 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4661 mono_mb_emit_ldarg (mb, argnum);
4663 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4665 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4667 mono_mb_emit_ldloc (mb, conv_arg);
4668 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4669 mono_mb_emit_byte (mb, CEE_STIND_REF);
4670 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4671 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4673 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4675 mono_mb_emit_ldloc (mb, conv_arg);
4676 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4678 /* We have nowhere to store the result */
4679 mono_mb_emit_byte (mb, CEE_POP);
4682 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4684 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4686 mono_mb_emit_ldloc (mb, conv_arg);
4688 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4690 mono_mb_patch_branch (mb, pos2);
4693 case MARSHAL_ACTION_PUSH:
4695 mono_mb_emit_ldloc_addr (mb, conv_arg);
4697 mono_mb_emit_ldloc (mb, conv_arg);
4700 case MARSHAL_ACTION_CONV_RESULT:
4701 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4703 mono_mb_emit_stloc (mb, 3);
4705 mono_mb_emit_ldloc (mb, 3);
4706 mono_mb_emit_stloc (mb, loc1);
4708 /* Check for null */
4709 mono_mb_emit_ldloc (mb, 3);
4710 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4712 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4714 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4715 mono_mb_emit_byte (mb, CEE_DUP);
4717 mono_mb_emit_ldloc (mb, 3);
4718 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4719 mono_mb_emit_stloc (mb, 3);
4721 mono_mb_emit_ldloc (mb, loc1);
4722 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4724 mono_mb_patch_branch (mb, pos2);
4727 case MARSHAL_ACTION_MANAGED_CONV_IN:
4728 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4730 mono_mb_emit_byte (mb, CEE_LDNULL);
4731 mono_mb_emit_stloc (mb, conv_arg);
4733 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4736 /* Check for null */
4737 mono_mb_emit_ldarg (mb, argnum);
4739 mono_mb_emit_byte (mb, CEE_LDIND_I);
4740 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4742 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4743 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4745 mono_mb_emit_ldarg (mb, argnum);
4747 mono_mb_emit_byte (mb, CEE_LDIND_I);
4749 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4750 mono_mb_emit_stloc (mb, conv_arg);
4752 mono_mb_patch_branch (mb, pos2);
4755 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4756 g_assert (!t->byref);
4758 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4760 mono_mb_emit_stloc (mb, 3);
4762 mono_mb_emit_ldloc (mb, 3);
4763 mono_mb_emit_stloc (mb, loc1);
4765 /* Check for null */
4766 mono_mb_emit_ldloc (mb, 3);
4767 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4769 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4770 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4771 mono_mb_emit_byte (mb, CEE_DUP);
4773 mono_mb_emit_ldloc (mb, 3);
4774 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4775 mono_mb_emit_stloc (mb, 3);
4777 mono_mb_emit_ldloc (mb, loc1);
4778 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4780 mono_mb_patch_branch (mb, pos2);
4783 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4785 /* Check for null */
4786 mono_mb_emit_ldloc (mb, conv_arg);
4787 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4790 mono_mb_emit_ldarg (mb, argnum);
4792 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4794 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4796 mono_mb_emit_ldloc (mb, conv_arg);
4797 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4798 mono_mb_emit_byte (mb, CEE_STIND_I);
4801 /* Call CleanUpManagedData */
4802 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4804 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4806 mono_mb_emit_ldloc (mb, conv_arg);
4807 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4809 mono_mb_patch_branch (mb, pos2);
4813 g_assert_not_reached ();
4821 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
4822 MonoMarshalSpec *spec,
4823 int conv_arg, MonoType **conv_arg_type,
4824 MarshalAction action)
4827 MonoMethodBuilder *mb = m->mb;
4830 case MARSHAL_ACTION_CONV_IN: {
4831 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4833 g_assert (t->type == MONO_TYPE_OBJECT);
4834 g_assert (!t->byref);
4836 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4837 mono_mb_emit_ldarg (mb, argnum);
4838 mono_mb_emit_icon (mb, encoding);
4839 mono_mb_emit_icon (mb, t->attrs);
4840 mono_mb_emit_icall (mb, mono_marshal_asany);
4841 mono_mb_emit_stloc (mb, conv_arg);
4845 case MARSHAL_ACTION_PUSH:
4846 mono_mb_emit_ldloc (mb, conv_arg);
4849 case MARSHAL_ACTION_CONV_OUT: {
4850 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
4852 mono_mb_emit_ldarg (mb, argnum);
4853 mono_mb_emit_ldloc (mb, conv_arg);
4854 mono_mb_emit_icon (mb, encoding);
4855 mono_mb_emit_icon (mb, t->attrs);
4856 mono_mb_emit_icall (mb, mono_marshal_free_asany);
4861 g_assert_not_reached ();
4868 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
4869 MonoMarshalSpec *spec,
4870 int conv_arg, MonoType **conv_arg_type,
4871 MarshalAction action)
4874 MonoMethodBuilder *mb = m->mb;
4875 MonoClass *klass, *date_time_class;
4878 klass = mono_class_from_mono_type (t);
4880 date_time_class = mono_class_get_date_time_class ();
4883 case MARSHAL_ACTION_CONV_IN:
4884 if (klass == date_time_class) {
4885 /* Convert it to an OLE DATE type */
4886 static MonoMethod *to_oadate;
4889 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
4890 g_assert (to_oadate);
4892 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
4895 mono_mb_emit_ldarg (mb, argnum);
4896 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4899 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4901 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
4903 mono_mb_emit_ldarg_addr (mb, argnum);
4904 mono_mb_emit_managed_call (mb, to_oadate, NULL);
4905 mono_mb_emit_stloc (mb, conv_arg);
4909 mono_mb_patch_branch (mb, pos);
4913 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4914 klass->blittable || klass->enumtype)
4917 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4919 /* store the address of the source into local variable 0 */
4921 mono_mb_emit_ldarg (mb, argnum);
4923 mono_mb_emit_ldarg_addr (mb, argnum);
4925 mono_mb_emit_stloc (mb, 0);
4927 /* allocate space for the native struct and
4928 * store the address into local variable 1 (dest) */
4929 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
4930 mono_mb_emit_byte (mb, CEE_PREFIX1);
4931 mono_mb_emit_byte (mb, CEE_LOCALLOC);
4932 mono_mb_emit_stloc (mb, conv_arg);
4935 mono_mb_emit_ldloc (mb, 0);
4936 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
4939 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
4941 mono_mb_emit_ldloc (mb, conv_arg);
4942 mono_mb_emit_stloc (mb, 1);
4944 /* emit valuetype conversion code */
4945 emit_struct_conv (mb, klass, FALSE);
4949 mono_mb_patch_branch (mb, pos);
4952 case MARSHAL_ACTION_PUSH:
4953 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
4955 g_assert (!t->byref);
4957 /* Have to change the signature since the vtype is passed byref */
4958 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
4960 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4961 klass->blittable || klass->enumtype)
4962 mono_mb_emit_ldarg_addr (mb, argnum);
4964 mono_mb_emit_ldloc (mb, conv_arg);
4968 if (klass == date_time_class) {
4970 mono_mb_emit_ldloc_addr (mb, conv_arg);
4972 mono_mb_emit_ldloc (mb, conv_arg);
4976 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
4977 klass->blittable || klass->enumtype) {
4978 mono_mb_emit_ldarg (mb, argnum);
4981 mono_mb_emit_ldloc (mb, conv_arg);
4983 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4984 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
4988 case MARSHAL_ACTION_CONV_OUT:
4989 if (klass == date_time_class) {
4990 /* Convert from an OLE DATE type */
4991 static MonoMethod *from_oadate;
4996 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
4998 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
4999 g_assert (from_oadate);
5001 mono_mb_emit_ldarg (mb, argnum);
5002 mono_mb_emit_ldloc (mb, conv_arg);
5003 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5004 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5009 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5010 klass->blittable || klass->enumtype)
5014 /* dst = argument */
5015 mono_mb_emit_ldarg (mb, argnum);
5016 mono_mb_emit_stloc (mb, 1);
5018 mono_mb_emit_ldloc (mb, 1);
5019 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5021 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5022 /* src = tmp_locals [i] */
5023 mono_mb_emit_ldloc (mb, conv_arg);
5024 mono_mb_emit_stloc (mb, 0);
5026 /* emit valuetype conversion code */
5027 emit_struct_conv (mb, klass, TRUE);
5031 emit_struct_free (mb, klass, conv_arg);
5034 mono_mb_patch_branch (mb, pos);
5037 case MARSHAL_ACTION_CONV_RESULT:
5038 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5040 mono_mb_emit_stloc (mb, 3);
5044 /* load pointer to returned value type */
5045 g_assert (m->vtaddr_var);
5046 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5047 /* store the address of the source into local variable 0 */
5048 mono_mb_emit_stloc (mb, 0);
5050 mono_mb_emit_ldloc_addr (mb, 3);
5051 mono_mb_emit_stloc (mb, 1);
5053 /* emit valuetype conversion code */
5054 emit_struct_conv (mb, klass, TRUE);
5057 case MARSHAL_ACTION_MANAGED_CONV_IN:
5058 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5059 klass->blittable || klass->enumtype) {
5064 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5066 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5070 mono_mb_emit_ldarg (mb, argnum);
5072 mono_mb_emit_ldarg_addr (mb, argnum);
5073 mono_mb_emit_stloc (mb, 0);
5076 mono_mb_emit_ldloc (mb, 0);
5077 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5080 mono_mb_emit_ldloc_addr (mb, conv_arg);
5081 mono_mb_emit_stloc (mb, 1);
5083 /* emit valuetype conversion code */
5084 emit_struct_conv (mb, klass, TRUE);
5087 mono_mb_patch_branch (mb, pos);
5090 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5091 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5092 klass->blittable || klass->enumtype) {
5096 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5099 /* Check for null */
5100 mono_mb_emit_ldarg (mb, argnum);
5101 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5104 mono_mb_emit_ldloc_addr (mb, conv_arg);
5105 mono_mb_emit_stloc (mb, 0);
5108 mono_mb_emit_ldarg (mb, argnum);
5109 mono_mb_emit_stloc (mb, 1);
5111 /* emit valuetype conversion code */
5112 emit_struct_conv (mb, klass, FALSE);
5114 mono_mb_patch_branch (mb, pos2);
5117 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5118 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5119 klass->blittable || klass->enumtype) {
5120 mono_mb_emit_stloc (mb, 3);
5125 /* load pointer to returned value type */
5126 g_assert (m->vtaddr_var);
5127 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5129 /* store the address of the source into local variable 0 */
5130 mono_mb_emit_stloc (mb, 0);
5131 /* allocate space for the native struct and
5132 * store the address into dst_ptr */
5133 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5134 m->retobj_class = klass;
5135 g_assert (m->retobj_var);
5136 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5137 mono_mb_emit_byte (mb, CEE_CONV_I);
5138 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5139 mono_mb_emit_stloc (mb, 1);
5140 mono_mb_emit_ldloc (mb, 1);
5141 mono_mb_emit_stloc (mb, m->retobj_var);
5143 /* emit valuetype conversion code */
5144 emit_struct_conv (mb, klass, FALSE);
5148 g_assert_not_reached ();
5155 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5156 MonoMarshalSpec *spec,
5157 int conv_arg, MonoType **conv_arg_type,
5158 MarshalAction action)
5162 case MARSHAL_ACTION_CONV_IN:
5163 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5165 case MARSHAL_ACTION_MANAGED_CONV_IN:
5166 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5170 MonoMethodBuilder *mb = m->mb;
5171 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5172 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5176 case MARSHAL_ACTION_CONV_IN:
5177 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5178 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5181 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5184 mono_mb_emit_ldarg (mb, argnum);
5185 mono_mb_emit_byte (mb, CEE_LDIND_I);
5187 mono_mb_emit_ldarg (mb, argnum);
5190 if (conv == MONO_MARSHAL_CONV_INVALID) {
5191 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5192 mono_mb_emit_exception_marshal_directive (mb, msg);
5194 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5196 mono_mb_emit_stloc (mb, conv_arg);
5200 case MARSHAL_ACTION_CONV_OUT:
5201 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5202 if (conv == MONO_MARSHAL_CONV_INVALID) {
5203 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5204 mono_mb_emit_exception_marshal_directive (mb, msg);
5208 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5209 static MonoMethod *m;
5212 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5217 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5218 mono_mb_emit_exception_marshal_directive (mb, msg);
5223 * Have to allocate a new string with the same length as the original, and
5224 * copy the contents of the buffer pointed to by CONV_ARG into it.
5226 g_assert (t->byref);
5227 mono_mb_emit_ldarg (mb, argnum);
5228 mono_mb_emit_ldloc (mb, conv_arg);
5229 mono_mb_emit_ldarg (mb, argnum);
5230 mono_mb_emit_byte (mb, CEE_LDIND_I);
5231 mono_mb_emit_managed_call (mb, m, NULL);
5232 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5233 mono_mb_emit_byte (mb, CEE_STIND_REF);
5234 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5236 mono_mb_emit_ldarg (mb, argnum);
5237 mono_mb_emit_ldloc (mb, conv_arg);
5238 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5239 mono_mb_emit_byte (mb, stind_op);
5244 mono_mb_emit_ldloc (mb, conv_arg);
5245 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5246 mono_mb_emit_icall (mb, mono_free_bstr);
5248 mono_mb_emit_icall (mb, mono_marshal_free);
5252 case MARSHAL_ACTION_PUSH:
5253 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5254 mono_mb_emit_ldloc_addr (mb, conv_arg);
5256 mono_mb_emit_ldloc (mb, conv_arg);
5259 case MARSHAL_ACTION_CONV_RESULT:
5260 mono_mb_emit_stloc (mb, 0);
5262 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5263 if (conv == MONO_MARSHAL_CONV_INVALID) {
5264 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5265 mono_mb_emit_exception_marshal_directive (mb, msg);
5269 mono_mb_emit_ldloc (mb, 0);
5270 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5271 mono_mb_emit_stloc (mb, 3);
5273 /* free the string */
5274 mono_mb_emit_ldloc (mb, 0);
5275 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5276 mono_mb_emit_icall (mb, mono_free_bstr);
5278 mono_mb_emit_icall (mb, mono_marshal_free);
5281 case MARSHAL_ACTION_MANAGED_CONV_IN:
5282 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5284 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5287 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5291 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5292 if (conv == MONO_MARSHAL_CONV_INVALID) {
5293 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5294 mono_mb_emit_exception_marshal_directive (mb, msg);
5298 mono_mb_emit_ldarg (mb, argnum);
5300 mono_mb_emit_byte (mb, CEE_LDIND_I);
5301 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5302 mono_mb_emit_stloc (mb, conv_arg);
5305 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5309 mono_mb_emit_ldarg (mb, argnum);
5310 mono_mb_emit_ldloc (mb, conv_arg);
5311 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5312 mono_mb_emit_byte (mb, stind_op);
5317 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5318 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5319 /* We need to make a copy so the caller is able to free it */
5320 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5322 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5323 mono_mb_emit_stloc (mb, 3);
5327 g_assert_not_reached ();
5335 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5336 MonoMarshalSpec *spec, int conv_arg,
5337 MonoType **conv_arg_type, MarshalAction action)
5340 if (action == MARSHAL_ACTION_CONV_IN)
5341 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5343 MonoMethodBuilder *mb = m->mb;
5346 case MARSHAL_ACTION_CONV_IN: {
5347 MonoType *intptr_type;
5348 int dar_release_slot, pos;
5350 intptr_type = &mono_defaults.int_class->byval_arg;
5351 conv_arg = mono_mb_add_local (mb, intptr_type);
5352 *conv_arg_type = intptr_type;
5354 if (!sh_dangerous_add_ref)
5355 init_safe_handle ();
5357 mono_mb_emit_ldarg (mb, argnum);
5358 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5359 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5361 mono_mb_patch_branch (mb, pos);
5364 * My tests in show that ref SafeHandles are not really
5365 * passed as ref objects. Instead a NULL is passed as the
5368 mono_mb_emit_icon (mb, 0);
5369 mono_mb_emit_stloc (mb, conv_arg);
5373 /* Create local to hold the ref parameter to DangerousAddRef */
5374 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5376 /* set release = false; */
5377 mono_mb_emit_icon (mb, 0);
5378 mono_mb_emit_stloc (mb, dar_release_slot);
5380 /* safehandle.DangerousAddRef (ref release) */
5381 mono_mb_emit_ldarg (mb, argnum);
5382 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5383 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5385 /* Pull the handle field from SafeHandle */
5386 mono_mb_emit_ldarg (mb, argnum);
5387 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5388 mono_mb_emit_byte (mb, CEE_LDIND_I);
5389 mono_mb_emit_stloc (mb, conv_arg);
5394 case MARSHAL_ACTION_PUSH:
5396 mono_mb_emit_ldloc_addr (mb, conv_arg);
5398 mono_mb_emit_ldloc (mb, conv_arg);
5401 case MARSHAL_ACTION_CONV_OUT: {
5402 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5403 int dar_release_slot = conv_arg + 1;
5406 if (!sh_dangerous_release)
5407 init_safe_handle ();
5413 * My tests indicate that ref SafeHandles parameters are not actually
5414 * passed by ref, but instead a new Handle is created regardless of
5415 * whether a change happens in the unmanaged side.
5417 * Also, the Handle is created before calling into unmanaged code,
5418 * but we do not support that mechanism (getting to the original
5419 * handle) and it makes no difference where we create this
5421 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5423 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5426 /* refval = new SafeHandleDerived ()*/
5427 mono_mb_emit_ldarg (mb, argnum);
5428 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5429 mono_mb_emit_byte (mb, CEE_STIND_REF);
5431 /* refval.handle = returned_handle */
5432 mono_mb_emit_ldarg (mb, argnum);
5433 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5434 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5435 mono_mb_emit_ldloc (mb, conv_arg);
5436 mono_mb_emit_byte (mb, CEE_STIND_I);
5438 mono_mb_emit_ldloc (mb, dar_release_slot);
5439 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5440 mono_mb_emit_ldarg (mb, argnum);
5441 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5442 mono_mb_patch_branch (mb, label_next);
5447 case MARSHAL_ACTION_CONV_RESULT: {
5448 MonoMethod *ctor = NULL;
5449 int intptr_handle_slot;
5451 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
5452 mono_mb_emit_byte (mb, CEE_POP);
5453 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5457 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5459 mono_mb_emit_byte (mb, CEE_POP);
5460 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5463 /* Store the IntPtr results into a local */
5464 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5465 mono_mb_emit_stloc (mb, intptr_handle_slot);
5467 /* Create return value */
5468 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5469 mono_mb_emit_stloc (mb, 3);
5471 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5472 mono_mb_emit_ldloc (mb, 3);
5473 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5474 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5475 mono_mb_emit_byte (mb, CEE_STIND_I);
5479 case MARSHAL_ACTION_MANAGED_CONV_IN:
5480 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5483 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5484 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5487 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5488 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5491 printf ("Unhandled case for MarshalAction: %d\n", action);
5499 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5500 MonoMarshalSpec *spec, int conv_arg,
5501 MonoType **conv_arg_type, MarshalAction action)
5504 if (action == MARSHAL_ACTION_CONV_IN)
5505 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5507 MonoMethodBuilder *mb = m->mb;
5510 case MARSHAL_ACTION_CONV_IN: {
5511 MonoType *intptr_type;
5513 intptr_type = &mono_defaults.int_class->byval_arg;
5514 conv_arg = mono_mb_add_local (mb, intptr_type);
5515 *conv_arg_type = intptr_type;
5518 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5519 mono_mb_emit_exception_marshal_directive (mb, msg);
5522 mono_mb_emit_ldarg_addr (mb, argnum);
5523 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5524 mono_mb_emit_byte (mb, CEE_ADD);
5525 mono_mb_emit_byte (mb, CEE_LDIND_I);
5526 mono_mb_emit_stloc (mb, conv_arg);
5530 case MARSHAL_ACTION_PUSH:
5531 mono_mb_emit_ldloc (mb, conv_arg);
5534 case MARSHAL_ACTION_CONV_OUT: {
5535 /* no resource release required */
5539 case MARSHAL_ACTION_CONV_RESULT: {
5540 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5541 mono_mb_emit_exception_marshal_directive (mb, msg);
5545 case MARSHAL_ACTION_MANAGED_CONV_IN:
5546 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5549 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5550 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5553 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5554 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5557 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5565 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5566 MonoMarshalSpec *spec,
5567 int conv_arg, MonoType **conv_arg_type,
5568 MarshalAction action)
5571 if (action == MARSHAL_ACTION_CONV_IN)
5572 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5574 MonoMethodBuilder *mb = m->mb;
5575 MonoClass *klass = mono_class_from_mono_type (t);
5579 case MARSHAL_ACTION_CONV_IN:
5580 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5581 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5583 m->orig_conv_args [argnum] = 0;
5585 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5586 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5587 mono_mb_emit_exception_marshal_directive (mb, msg);
5591 if (klass->delegate) {
5593 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5594 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5595 mono_mb_emit_exception_marshal_directive (mb, msg);
5597 mono_mb_emit_byte (mb, CEE_LDNULL);
5598 mono_mb_emit_stloc (mb, conv_arg);
5600 mono_mb_emit_ldarg (mb, argnum);
5601 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5602 mono_mb_emit_stloc (mb, conv_arg);
5604 } else if (klass == mono_defaults.stringbuilder_class) {
5605 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5606 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5610 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5611 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5612 mono_mb_emit_exception_marshal_directive (mb, msg);
5618 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5621 if (conv == MONO_MARSHAL_CONV_INVALID) {
5622 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5623 mono_mb_emit_exception_marshal_directive (mb, msg);
5627 mono_mb_emit_ldarg (mb, argnum);
5629 mono_mb_emit_byte (mb, CEE_LDIND_I);
5631 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5632 mono_mb_emit_stloc (mb, conv_arg);
5633 } else if (klass->blittable) {
5634 mono_mb_emit_byte (mb, CEE_LDNULL);
5635 mono_mb_emit_stloc (mb, conv_arg);
5637 mono_mb_emit_ldarg (mb, argnum);
5638 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5640 mono_mb_emit_ldarg (mb, argnum);
5641 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5642 mono_mb_emit_stloc (mb, conv_arg);
5644 mono_mb_patch_branch (mb, pos);
5647 mono_mb_emit_byte (mb, CEE_LDNULL);
5648 mono_mb_emit_stloc (mb, conv_arg);
5651 /* we dont need any conversions for out parameters */
5652 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5655 mono_mb_emit_ldarg (mb, argnum);
5656 mono_mb_emit_byte (mb, CEE_LDIND_I);
5659 mono_mb_emit_ldarg (mb, argnum);
5660 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5661 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5664 /* store the address of the source into local variable 0 */
5665 mono_mb_emit_stloc (mb, 0);
5666 mono_mb_emit_ldloc (mb, 0);
5667 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5669 /* allocate space for the native struct and store the address */
5670 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5671 mono_mb_emit_byte (mb, CEE_PREFIX1);
5672 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5673 mono_mb_emit_stloc (mb, conv_arg);
5676 /* Need to store the original buffer so we can free it later */
5677 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5678 mono_mb_emit_ldloc (mb, conv_arg);
5679 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5682 /* set the src_ptr */
5683 mono_mb_emit_ldloc (mb, 0);
5684 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5685 mono_mb_emit_stloc (mb, 0);
5688 mono_mb_emit_ldloc (mb, conv_arg);
5689 mono_mb_emit_stloc (mb, 1);
5691 /* emit valuetype conversion code */
5692 emit_struct_conv (mb, klass, FALSE);
5694 mono_mb_patch_branch (mb, pos);
5698 case MARSHAL_ACTION_CONV_OUT:
5699 if (klass == mono_defaults.stringbuilder_class) {
5701 MonoMarshalNative encoding;
5702 MonoMarshalConv conv;
5704 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5705 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5707 g_assert (encoding != -1);
5710 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5714 mono_mb_emit_ldarg (mb, argnum);
5715 mono_mb_emit_ldloc (mb, conv_arg);
5718 case MONO_NATIVE_LPWSTR:
5719 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5721 case MONO_NATIVE_LPSTR:
5722 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5725 g_assert_not_reached ();
5728 mono_mb_emit_byte (mb, CEE_STIND_REF);
5730 mono_mb_emit_ldarg (mb, argnum);
5731 mono_mb_emit_ldloc (mb, conv_arg);
5733 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5737 mono_mb_emit_ldloc (mb, conv_arg);
5738 mono_mb_emit_icall (mb, mono_marshal_free);
5743 if (klass->delegate) {
5745 mono_mb_emit_ldarg (mb, argnum);
5746 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5747 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5748 mono_mb_emit_ldloc (mb, conv_arg);
5749 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5750 mono_mb_emit_byte (mb, CEE_STIND_REF);
5755 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5756 /* allocate a new object */
5757 mono_mb_emit_ldarg (mb, argnum);
5758 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5759 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5760 mono_mb_emit_byte (mb, CEE_STIND_REF);
5763 /* dst = *argument */
5764 mono_mb_emit_ldarg (mb, argnum);
5767 mono_mb_emit_byte (mb, CEE_LDIND_I);
5769 mono_mb_emit_stloc (mb, 1);
5771 mono_mb_emit_ldloc (mb, 1);
5772 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5774 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5775 mono_mb_emit_ldloc (mb, 1);
5776 mono_mb_emit_icon (mb, sizeof (MonoObject));
5777 mono_mb_emit_byte (mb, CEE_ADD);
5778 mono_mb_emit_stloc (mb, 1);
5780 /* src = tmp_locals [i] */
5781 mono_mb_emit_ldloc (mb, conv_arg);
5782 mono_mb_emit_stloc (mb, 0);
5784 /* emit valuetype conversion code */
5785 emit_struct_conv (mb, klass, TRUE);
5787 /* Free the structure returned by the native code */
5788 emit_struct_free (mb, klass, conv_arg);
5790 if (m->orig_conv_args [argnum]) {
5792 * If the native function changed the pointer, then free
5793 * the original structure plus the new pointer.
5795 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5796 mono_mb_emit_ldloc (mb, conv_arg);
5797 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5799 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5800 g_assert (m->orig_conv_args [argnum]);
5802 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5805 mono_mb_emit_ldloc (mb, conv_arg);
5806 mono_mb_emit_icall (mb, mono_marshal_free);
5808 mono_mb_patch_branch (mb, pos2);
5812 /* Free the original structure passed to native code */
5813 emit_struct_free (mb, klass, conv_arg);
5815 mono_mb_patch_branch (mb, pos);
5818 case MARSHAL_ACTION_PUSH:
5820 mono_mb_emit_ldloc_addr (mb, conv_arg);
5822 mono_mb_emit_ldloc (mb, conv_arg);
5825 case MARSHAL_ACTION_CONV_RESULT:
5826 if (klass->delegate) {
5827 g_assert (!t->byref);
5828 mono_mb_emit_stloc (mb, 0);
5829 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5830 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5831 mono_mb_emit_ldloc (mb, 0);
5832 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5833 mono_mb_emit_stloc (mb, 3);
5836 mono_mb_emit_stloc (mb, 0);
5838 /* Make a copy since emit_conv modifies local 0 */
5839 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5840 mono_mb_emit_ldloc (mb, 0);
5841 mono_mb_emit_stloc (mb, loc);
5843 mono_mb_emit_byte (mb, CEE_LDNULL);
5844 mono_mb_emit_stloc (mb, 3);
5846 mono_mb_emit_ldloc (mb, 0);
5847 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5849 /* allocate result object */
5851 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5852 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5853 mono_mb_emit_stloc (mb, 3);
5857 mono_mb_emit_ldloc (mb, 3);
5858 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5859 mono_mb_emit_stloc (mb, 1);
5861 /* emit conversion code */
5862 emit_struct_conv (mb, klass, TRUE);
5864 emit_struct_free (mb, klass, loc);
5866 /* Free the pointer allocated by unmanaged code */
5867 mono_mb_emit_ldloc (mb, loc);
5868 mono_mb_emit_icall (mb, mono_marshal_free);
5869 mono_mb_patch_branch (mb, pos);
5873 case MARSHAL_ACTION_MANAGED_CONV_IN:
5874 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5876 if (klass->delegate) {
5877 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5878 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5879 mono_mb_emit_ldarg (mb, argnum);
5881 mono_mb_emit_byte (mb, CEE_LDIND_I);
5882 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5883 mono_mb_emit_stloc (mb, conv_arg);
5887 if (klass == mono_defaults.stringbuilder_class) {
5888 MonoMarshalNative encoding;
5890 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5893 g_assert (encoding == MONO_NATIVE_LPSTR);
5895 g_assert (!t->byref);
5896 g_assert (encoding != -1);
5898 mono_mb_emit_ldarg (mb, argnum);
5899 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5900 mono_mb_emit_stloc (mb, conv_arg);
5904 /* The class can not have an automatic layout */
5905 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
5906 mono_mb_emit_auto_layout_exception (mb, klass);
5910 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
5911 mono_mb_emit_byte (mb, CEE_LDNULL);
5912 mono_mb_emit_stloc (mb, conv_arg);
5917 mono_mb_emit_ldarg (mb, argnum);
5921 /* Check for NULL and raise an exception */
5922 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
5924 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5926 mono_mb_patch_branch (mb, pos2);
5927 mono_mb_emit_ldarg (mb, argnum);
5928 mono_mb_emit_byte (mb, CEE_LDIND_I);
5931 mono_mb_emit_stloc (mb, 0);
5933 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5934 mono_mb_emit_stloc (mb, conv_arg);
5936 mono_mb_emit_ldloc (mb, 0);
5937 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5939 /* Create and set dst */
5940 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5941 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5942 mono_mb_emit_stloc (mb, conv_arg);
5943 mono_mb_emit_ldloc (mb, conv_arg);
5944 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5945 mono_mb_emit_stloc (mb, 1);
5947 /* emit valuetype conversion code */
5948 emit_struct_conv (mb, klass, TRUE);
5950 mono_mb_patch_branch (mb, pos);
5953 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5954 if (klass->delegate) {
5957 mono_mb_emit_ldarg (mb, argnum);
5958 mono_mb_emit_ldloc (mb, conv_arg);
5959 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
5960 mono_mb_emit_byte (mb, stind_op);
5966 /* Check for null */
5967 mono_mb_emit_ldloc (mb, conv_arg);
5968 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5969 mono_mb_emit_ldarg (mb, argnum);
5970 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
5971 mono_mb_emit_byte (mb, CEE_STIND_REF);
5972 pos2 = mono_mb_emit_branch (mb, CEE_BR);
5974 mono_mb_patch_branch (mb, pos);
5977 mono_mb_emit_ldloc (mb, conv_arg);
5978 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5979 mono_mb_emit_stloc (mb, 0);
5981 /* Allocate and set dest */
5982 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5983 mono_mb_emit_byte (mb, CEE_CONV_I);
5984 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5985 mono_mb_emit_stloc (mb, 1);
5987 /* Update argument pointer */
5988 mono_mb_emit_ldarg (mb, argnum);
5989 mono_mb_emit_ldloc (mb, 1);
5990 mono_mb_emit_byte (mb, CEE_STIND_I);
5992 /* emit valuetype conversion code */
5993 emit_struct_conv (mb, klass, FALSE);
5995 mono_mb_patch_branch (mb, pos2);
5996 } else if (klass == mono_defaults.stringbuilder_class) {
5997 // FIXME: What to do here ?
5999 /* byval [Out] marshalling */
6001 /* FIXME: Handle null */
6004 mono_mb_emit_ldloc (mb, conv_arg);
6005 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6006 mono_mb_emit_stloc (mb, 0);
6009 mono_mb_emit_ldarg (mb, argnum);
6010 mono_mb_emit_stloc (mb, 1);
6012 /* emit valuetype conversion code */
6013 emit_struct_conv (mb, klass, FALSE);
6017 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6018 if (klass->delegate) {
6019 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6020 mono_mb_emit_stloc (mb, 3);
6024 /* The class can not have an automatic layout */
6025 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6026 mono_mb_emit_auto_layout_exception (mb, klass);
6030 mono_mb_emit_stloc (mb, 0);
6031 /* Check for null */
6032 mono_mb_emit_ldloc (mb, 0);
6033 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6034 mono_mb_emit_byte (mb, CEE_LDNULL);
6035 mono_mb_emit_stloc (mb, 3);
6036 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6038 mono_mb_patch_branch (mb, pos);
6041 mono_mb_emit_ldloc (mb, 0);
6042 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6043 mono_mb_emit_stloc (mb, 0);
6045 /* Allocate and set dest */
6046 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6047 mono_mb_emit_byte (mb, CEE_CONV_I);
6048 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6049 mono_mb_emit_byte (mb, CEE_DUP);
6050 mono_mb_emit_stloc (mb, 1);
6051 mono_mb_emit_stloc (mb, 3);
6053 emit_struct_conv (mb, klass, FALSE);
6055 mono_mb_patch_branch (mb, pos2);
6059 g_assert_not_reached ();
6070 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6071 MonoMarshalSpec *spec,
6072 int conv_arg, MonoType **conv_arg_type,
6073 MarshalAction action)
6075 MonoMethodBuilder *mb = m->mb;
6076 static MonoMethod *get_object_for_native_variant = NULL;
6077 static MonoMethod *get_native_variant_for_object = NULL;
6079 if (!get_object_for_native_variant)
6080 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6081 g_assert (get_object_for_native_variant);
6083 if (!get_native_variant_for_object)
6084 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6085 g_assert (get_native_variant_for_object);
6088 case MARSHAL_ACTION_CONV_IN: {
6089 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6092 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6094 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6096 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6099 mono_mb_emit_ldarg (mb, argnum);
6101 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6102 mono_mb_emit_ldloc_addr (mb, conv_arg);
6103 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6107 case MARSHAL_ACTION_CONV_OUT: {
6108 static MonoMethod *variant_clear = NULL;
6111 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6112 g_assert (variant_clear);
6115 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6116 mono_mb_emit_ldarg (mb, argnum);
6117 mono_mb_emit_ldloc_addr (mb, conv_arg);
6118 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6119 mono_mb_emit_byte (mb, CEE_STIND_REF);
6122 mono_mb_emit_ldloc_addr (mb, conv_arg);
6123 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6127 case MARSHAL_ACTION_PUSH:
6129 mono_mb_emit_ldloc_addr (mb, conv_arg);
6131 mono_mb_emit_ldloc (mb, conv_arg);
6134 case MARSHAL_ACTION_CONV_RESULT: {
6135 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6136 mono_mb_emit_exception_marshal_directive (mb, msg);
6140 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6141 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6144 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6146 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6148 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6152 mono_mb_emit_ldarg (mb, argnum);
6154 mono_mb_emit_ldarg_addr (mb, argnum);
6155 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6156 mono_mb_emit_stloc (mb, conv_arg);
6160 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6161 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6162 mono_mb_emit_ldloc (mb, conv_arg);
6163 mono_mb_emit_ldarg (mb, argnum);
6164 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6169 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6170 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6171 mono_mb_emit_exception_marshal_directive (mb, msg);
6176 g_assert_not_reached ();
6182 #endif /* DISABLE_COM */
6183 #endif /* DISABLE_JIT */
6186 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6188 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6189 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6191 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6193 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6205 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6206 MonoMarshalSpec *spec,
6207 int conv_arg, MonoType **conv_arg_type,
6208 MarshalAction action)
6212 case MARSHAL_ACTION_CONV_IN:
6213 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6215 case MARSHAL_ACTION_MANAGED_CONV_IN:
6216 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6220 MonoMethodBuilder *mb = m->mb;
6221 MonoClass *klass = mono_class_from_mono_type (t);
6222 gboolean need_convert, need_free;
6223 MonoMarshalNative encoding;
6225 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6228 case MARSHAL_ACTION_CONV_IN:
6229 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6230 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6232 if (klass->element_class->blittable) {
6233 mono_mb_emit_ldarg (mb, argnum);
6235 mono_mb_emit_byte (mb, CEE_LDIND_I);
6236 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6237 mono_mb_emit_stloc (mb, conv_arg);
6240 guint32 label1, label2, label3;
6241 int index_var, src_var, dest_ptr, esize;
6242 MonoMarshalConv conv;
6243 gboolean is_string = FALSE;
6245 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6247 eklass = klass->element_class;
6249 if (eklass == mono_defaults.string_class) {
6251 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6253 else if (eklass == mono_defaults.stringbuilder_class) {
6255 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6258 conv = MONO_MARSHAL_CONV_INVALID;
6260 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6261 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6262 mono_mb_emit_exception_marshal_directive (mb, msg);
6266 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6267 mono_mb_emit_ldarg (mb, argnum);
6269 mono_mb_emit_byte (mb, CEE_LDIND_I);
6270 mono_mb_emit_stloc (mb, src_var);
6273 mono_mb_emit_ldloc (mb, src_var);
6274 mono_mb_emit_stloc (mb, conv_arg);
6275 mono_mb_emit_ldloc (mb, src_var);
6276 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6279 esize = sizeof (gpointer);
6280 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6281 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6283 esize = mono_class_native_size (eklass, NULL);
6285 /* allocate space for the native struct and store the address */
6286 mono_mb_emit_icon (mb, esize);
6287 mono_mb_emit_ldloc (mb, src_var);
6288 mono_mb_emit_byte (mb, CEE_LDLEN);
6290 if (eklass == mono_defaults.string_class) {
6291 /* Make the array bigger for the terminating null */
6292 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6293 mono_mb_emit_byte (mb, CEE_ADD);
6295 mono_mb_emit_byte (mb, CEE_MUL);
6296 mono_mb_emit_byte (mb, CEE_PREFIX1);
6297 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6298 mono_mb_emit_stloc (mb, conv_arg);
6300 mono_mb_emit_ldloc (mb, conv_arg);
6301 mono_mb_emit_stloc (mb, dest_ptr);
6303 /* Emit marshalling loop */
6304 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6305 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6306 mono_mb_emit_stloc (mb, index_var);
6307 label2 = mono_mb_get_label (mb);
6308 mono_mb_emit_ldloc (mb, index_var);
6309 mono_mb_emit_ldloc (mb, src_var);
6310 mono_mb_emit_byte (mb, CEE_LDLEN);
6311 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6313 /* Emit marshalling code */
6317 mono_mb_emit_ldloc (mb, dest_ptr);
6318 mono_mb_emit_ldloc (mb, src_var);
6319 mono_mb_emit_ldloc (mb, index_var);
6320 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6321 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6322 mono_mb_emit_byte (mb, stind_op);
6324 /* set the src_ptr */
6325 mono_mb_emit_ldloc (mb, src_var);
6326 mono_mb_emit_ldloc (mb, index_var);
6327 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6328 mono_mb_emit_stloc (mb, 0);
6331 mono_mb_emit_ldloc (mb, dest_ptr);
6332 mono_mb_emit_stloc (mb, 1);
6334 /* emit valuetype conversion code */
6335 emit_struct_conv_full (mb, eklass, FALSE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6338 mono_mb_emit_add_to_local (mb, index_var, 1);
6339 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6341 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6343 mono_mb_patch_branch (mb, label3);
6345 if (eklass == mono_defaults.string_class) {
6346 /* Null terminate */
6347 mono_mb_emit_ldloc (mb, dest_ptr);
6348 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6349 mono_mb_emit_byte (mb, CEE_STIND_REF);
6352 mono_mb_patch_branch (mb, label1);
6357 case MARSHAL_ACTION_CONV_OUT:
6358 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6359 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);
6360 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6363 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6364 int param_num = spec->data.array_data.param_num;
6365 MonoType *param_type;
6367 param_type = m->sig->params [param_num];
6369 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6370 char *msg = g_strdup ("Not implemented.");
6371 mono_mb_emit_exception_marshal_directive (mb, msg);
6376 mono_mb_emit_ldarg (mb, argnum);
6378 /* Create the managed array */
6379 mono_mb_emit_ldarg (mb, param_num);
6380 if (m->sig->params [param_num]->byref)
6381 // FIXME: Support other types
6382 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6383 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6384 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6385 /* Store into argument */
6386 mono_mb_emit_byte (mb, CEE_STIND_REF);
6390 if (need_convert || need_free) {
6391 /* FIXME: Optimize blittable case */
6393 guint32 label1, label2, label3;
6394 int index_var, src_ptr, loc, esize;
6396 eklass = klass->element_class;
6397 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6398 esize = sizeof (gpointer);
6399 else if (eklass == mono_defaults.char_class)
6400 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6402 esize = mono_class_native_size (eklass, NULL);
6403 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6404 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6407 mono_mb_emit_ldarg (mb, argnum);
6409 mono_mb_emit_byte (mb, CEE_LDIND_I);
6410 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6412 mono_mb_emit_ldloc (mb, conv_arg);
6413 mono_mb_emit_stloc (mb, src_ptr);
6415 /* Emit marshalling loop */
6416 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6417 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6418 mono_mb_emit_stloc (mb, index_var);
6419 label2 = mono_mb_get_label (mb);
6420 mono_mb_emit_ldloc (mb, index_var);
6421 mono_mb_emit_ldarg (mb, argnum);
6423 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6424 mono_mb_emit_byte (mb, CEE_LDLEN);
6425 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6427 /* Emit marshalling code */
6429 if (eklass == mono_defaults.stringbuilder_class) {
6430 gboolean need_free2;
6431 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6433 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6436 mono_mb_emit_ldarg (mb, argnum);
6438 mono_mb_emit_byte (mb, CEE_LDIND_I);
6439 mono_mb_emit_ldloc (mb, index_var);
6440 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6443 mono_mb_emit_ldloc (mb, src_ptr);
6444 mono_mb_emit_byte (mb, CEE_LDIND_I);
6446 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6450 mono_mb_emit_ldloc (mb, src_ptr);
6451 mono_mb_emit_byte (mb, CEE_LDIND_I);
6453 mono_mb_emit_icall (mb, mono_marshal_free);
6456 else if (eklass == mono_defaults.string_class) {
6459 mono_mb_emit_ldloc (mb, src_ptr);
6460 mono_mb_emit_byte (mb, CEE_LDIND_I);
6462 mono_mb_emit_icall (mb, mono_marshal_free);
6467 /* set the src_ptr */
6468 mono_mb_emit_ldloc (mb, src_ptr);
6469 mono_mb_emit_stloc (mb, 0);
6472 mono_mb_emit_ldarg (mb, argnum);
6474 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6475 mono_mb_emit_ldloc (mb, index_var);
6476 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6477 mono_mb_emit_stloc (mb, 1);
6479 /* emit valuetype conversion code */
6480 emit_struct_conv_full (mb, eklass, TRUE, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6484 mono_mb_emit_ldloc (mb, src_ptr);
6485 mono_mb_emit_stloc (mb, loc);
6486 mono_mb_emit_ldloc (mb, loc);
6488 emit_struct_free (mb, eklass, loc);
6492 mono_mb_emit_add_to_local (mb, index_var, 1);
6493 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6495 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6497 mono_mb_patch_branch (mb, label1);
6498 mono_mb_patch_branch (mb, label3);
6501 if (klass->element_class->blittable) {
6502 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6504 mono_mb_emit_ldarg (mb, argnum);
6506 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6507 mono_mb_emit_ldloc (mb, conv_arg);
6508 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6513 case MARSHAL_ACTION_PUSH:
6515 mono_mb_emit_ldloc_addr (mb, conv_arg);
6517 mono_mb_emit_ldloc (mb, conv_arg);
6520 case MARSHAL_ACTION_CONV_RESULT:
6521 /* fixme: we need conversions here */
6522 mono_mb_emit_stloc (mb, 3);
6525 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6527 guint32 label1, label2, label3;
6528 int index_var, src_ptr, esize, param_num, num_elem;
6529 MonoMarshalConv conv;
6530 gboolean is_string = FALSE;
6532 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6533 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6536 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6537 mono_mb_emit_exception_marshal_directive (mb, msg);
6541 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6542 mono_mb_emit_exception_marshal_directive (mb, msg);
6545 if (spec->native != MONO_NATIVE_LPARRAY) {
6546 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6547 mono_mb_emit_exception_marshal_directive (mb, msg);
6551 /* FIXME: t is from the method which is wrapped, not the delegate type */
6552 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6554 param_num = spec->data.array_data.param_num;
6555 num_elem = spec->data.array_data.num_elem;
6556 if (spec->data.array_data.elem_mult == 0)
6557 /* param_num is not specified */
6560 if (param_num == -1) {
6561 if (num_elem <= 0) {
6562 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6563 mono_mb_emit_exception_marshal_directive (mb, msg);
6568 /* FIXME: Optimize blittable case */
6570 eklass = klass->element_class;
6571 if (eklass == mono_defaults.string_class) {
6573 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6575 else if (eklass == mono_defaults.stringbuilder_class) {
6577 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6580 conv = MONO_MARSHAL_CONV_INVALID;
6582 mono_marshal_load_type_info (eklass);
6585 esize = sizeof (gpointer);
6587 esize = mono_class_native_size (eklass, NULL);
6588 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6590 mono_mb_emit_byte (mb, CEE_LDNULL);
6591 mono_mb_emit_stloc (mb, conv_arg);
6593 /* Check param index */
6594 if (param_num != -1) {
6595 if (param_num >= m->sig->param_count) {
6596 char *msg = g_strdup ("Array size control parameter index is out of range.");
6597 mono_mb_emit_exception_marshal_directive (mb, msg);
6600 switch (m->sig->params [param_num]->type) {
6613 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6614 mono_mb_emit_exception_marshal_directive (mb, msg);
6621 mono_mb_emit_ldarg (mb, argnum);
6622 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6624 mono_mb_emit_ldarg (mb, argnum);
6625 mono_mb_emit_stloc (mb, src_ptr);
6627 /* Create managed array */
6629 * The LPArray marshalling spec says that sometimes param_num starts
6630 * from 1, sometimes it starts from 0. But MS seems to allways start
6634 if (param_num == -1) {
6635 mono_mb_emit_icon (mb, num_elem);
6637 mono_mb_emit_ldarg (mb, param_num);
6639 mono_mb_emit_icon (mb, num_elem);
6640 mono_mb_emit_byte (mb, CEE_ADD);
6642 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6645 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6646 mono_mb_emit_stloc (mb, conv_arg);
6648 if (eklass->blittable) {
6649 mono_mb_emit_ldloc (mb, conv_arg);
6650 mono_mb_emit_byte (mb, CEE_CONV_I);
6651 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6652 mono_mb_emit_byte (mb, CEE_ADD);
6653 mono_mb_emit_ldarg (mb, argnum);
6654 mono_mb_emit_ldloc (mb, conv_arg);
6655 mono_mb_emit_byte (mb, CEE_LDLEN);
6656 mono_mb_emit_icon (mb, esize);
6657 mono_mb_emit_byte (mb, CEE_MUL);
6658 mono_mb_emit_byte (mb, CEE_PREFIX1);
6659 mono_mb_emit_byte (mb, CEE_CPBLK);
6663 /* Emit marshalling loop */
6664 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6665 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6666 mono_mb_emit_stloc (mb, index_var);
6667 label2 = mono_mb_get_label (mb);
6668 mono_mb_emit_ldloc (mb, index_var);
6669 mono_mb_emit_ldloc (mb, conv_arg);
6670 mono_mb_emit_byte (mb, CEE_LDLEN);
6671 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6673 /* Emit marshalling code */
6675 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6677 mono_mb_emit_ldloc (mb, conv_arg);
6678 mono_mb_emit_ldloc (mb, index_var);
6680 mono_mb_emit_ldloc (mb, src_ptr);
6681 mono_mb_emit_byte (mb, CEE_LDIND_I);
6683 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6684 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6687 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6688 mono_mb_emit_exception_marshal_directive (mb, msg);
6692 mono_mb_emit_add_to_local (mb, index_var, 1);
6693 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6695 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6697 mono_mb_patch_branch (mb, label1);
6698 mono_mb_patch_branch (mb, label3);
6702 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6704 guint32 label1, label2, label3;
6705 int index_var, dest_ptr, esize, param_num, num_elem;
6706 MonoMarshalConv conv;
6707 gboolean is_string = FALSE;
6710 /* Already handled in CONV_IN */
6713 /* These are already checked in CONV_IN */
6714 g_assert (!t->byref);
6715 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6716 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6718 param_num = spec->data.array_data.param_num;
6719 num_elem = spec->data.array_data.num_elem;
6721 if (spec->data.array_data.elem_mult == 0)
6722 /* param_num is not specified */
6725 if (param_num == -1) {
6726 if (num_elem <= 0) {
6727 g_assert_not_reached ();
6731 /* FIXME: Optimize blittable case */
6733 eklass = klass->element_class;
6734 if (eklass == mono_defaults.string_class) {
6736 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6738 else if (eklass == mono_defaults.stringbuilder_class) {
6740 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6743 conv = MONO_MARSHAL_CONV_INVALID;
6745 mono_marshal_load_type_info (eklass);
6748 esize = sizeof (gpointer);
6750 esize = mono_class_native_size (eklass, NULL);
6752 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6755 mono_mb_emit_ldloc (mb, conv_arg);
6756 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6758 mono_mb_emit_ldarg (mb, argnum);
6759 mono_mb_emit_stloc (mb, dest_ptr);
6761 if (eklass->blittable) {
6763 mono_mb_emit_ldarg (mb, argnum);
6765 mono_mb_emit_ldloc (mb, conv_arg);
6766 mono_mb_emit_byte (mb, CEE_CONV_I);
6767 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6768 mono_mb_emit_byte (mb, CEE_ADD);
6770 mono_mb_emit_ldloc (mb, conv_arg);
6771 mono_mb_emit_byte (mb, CEE_LDLEN);
6772 mono_mb_emit_icon (mb, esize);
6773 mono_mb_emit_byte (mb, CEE_MUL);
6774 mono_mb_emit_byte (mb, CEE_PREFIX1);
6775 mono_mb_emit_byte (mb, CEE_CPBLK);
6779 /* Emit marshalling loop */
6780 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6781 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6782 mono_mb_emit_stloc (mb, index_var);
6783 label2 = mono_mb_get_label (mb);
6784 mono_mb_emit_ldloc (mb, index_var);
6785 mono_mb_emit_ldloc (mb, conv_arg);
6786 mono_mb_emit_byte (mb, CEE_LDLEN);
6787 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6789 /* Emit marshalling code */
6792 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6795 mono_mb_emit_ldloc (mb, dest_ptr);
6798 mono_mb_emit_ldloc (mb, conv_arg);
6799 mono_mb_emit_ldloc (mb, index_var);
6801 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6803 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6804 mono_mb_emit_byte (mb, stind_op);
6807 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6808 mono_mb_emit_exception_marshal_directive (mb, msg);
6812 mono_mb_emit_add_to_local (mb, index_var, 1);
6813 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6815 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6817 mono_mb_patch_branch (mb, label1);
6818 mono_mb_patch_branch (mb, label3);
6822 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6824 guint32 label1, label2, label3;
6825 int index_var, src, dest, esize;
6826 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
6827 gboolean is_string = FALSE;
6829 g_assert (!t->byref);
6831 eklass = klass->element_class;
6833 mono_marshal_load_type_info (eklass);
6835 if (eklass == mono_defaults.string_class) {
6837 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6840 g_assert_not_reached ();
6844 esize = sizeof (gpointer);
6845 else if (eklass == mono_defaults.char_class)
6846 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6848 esize = mono_class_native_size (eklass, NULL);
6850 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6851 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6853 mono_mb_emit_stloc (mb, src);
6854 mono_mb_emit_ldloc (mb, src);
6855 mono_mb_emit_stloc (mb, 3);
6857 /* Check for null */
6858 mono_mb_emit_ldloc (mb, src);
6859 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6861 /* Allocate native array */
6862 mono_mb_emit_icon (mb, esize);
6863 mono_mb_emit_ldloc (mb, src);
6864 mono_mb_emit_byte (mb, CEE_LDLEN);
6866 if (eklass == mono_defaults.string_class) {
6867 /* Make the array bigger for the terminating null */
6868 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6869 mono_mb_emit_byte (mb, CEE_ADD);
6871 mono_mb_emit_byte (mb, CEE_MUL);
6872 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6873 mono_mb_emit_stloc (mb, dest);
6874 mono_mb_emit_ldloc (mb, dest);
6875 mono_mb_emit_stloc (mb, 3);
6877 /* Emit marshalling loop */
6878 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6879 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6880 mono_mb_emit_stloc (mb, index_var);
6881 label2 = mono_mb_get_label (mb);
6882 mono_mb_emit_ldloc (mb, index_var);
6883 mono_mb_emit_ldloc (mb, src);
6884 mono_mb_emit_byte (mb, CEE_LDLEN);
6885 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6887 /* Emit marshalling code */
6890 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6893 mono_mb_emit_ldloc (mb, dest);
6896 mono_mb_emit_ldloc (mb, src);
6897 mono_mb_emit_ldloc (mb, index_var);
6899 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6901 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6902 mono_mb_emit_byte (mb, stind_op);
6905 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
6906 mono_mb_emit_exception_marshal_directive (mb, msg);
6910 mono_mb_emit_add_to_local (mb, index_var, 1);
6911 mono_mb_emit_add_to_local (mb, dest, esize);
6913 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6915 mono_mb_patch_branch (mb, label3);
6916 mono_mb_patch_branch (mb, label1);
6920 g_assert_not_reached ();
6927 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
6930 return &mono_defaults.int32_class->byval_arg;
6932 switch (spec->native) {
6933 case MONO_NATIVE_I1:
6934 case MONO_NATIVE_U1:
6935 return &mono_defaults.byte_class->byval_arg;
6936 case MONO_NATIVE_VARIANTBOOL:
6937 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
6938 return &mono_defaults.int16_class->byval_arg;
6939 case MONO_NATIVE_BOOLEAN:
6940 return &mono_defaults.int32_class->byval_arg;
6942 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6943 return &mono_defaults.int32_class->byval_arg;
6949 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
6951 MonoClass* conv_arg_class = mono_defaults.int32_class;
6953 switch (spec->native) {
6954 case MONO_NATIVE_I1:
6955 case MONO_NATIVE_U1:
6956 conv_arg_class = mono_defaults.byte_class;
6957 if (ldop) *ldop = CEE_LDIND_I1;
6959 case MONO_NATIVE_VARIANTBOOL:
6960 conv_arg_class = mono_defaults.int16_class;
6961 if (ldop) *ldop = CEE_LDIND_I2;
6963 case MONO_NATIVE_BOOLEAN:
6966 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
6969 return conv_arg_class;
6973 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
6974 MonoMarshalSpec *spec,
6975 int conv_arg, MonoType **conv_arg_type,
6976 MarshalAction action)
6980 case MARSHAL_ACTION_CONV_IN:
6982 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6984 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
6987 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6988 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
6990 *conv_arg_type = &conv_arg_class->this_arg;
6992 *conv_arg_type = &conv_arg_class->byval_arg;
6998 MonoMethodBuilder *mb = m->mb;
7001 case MARSHAL_ACTION_CONV_IN: {
7002 MonoType *local_type;
7004 guint8 ldc_op = CEE_LDC_I4_1;
7006 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7008 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7010 *conv_arg_type = local_type;
7011 conv_arg = mono_mb_add_local (mb, local_type);
7013 mono_mb_emit_ldarg (mb, argnum);
7015 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7016 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7017 mono_mb_emit_byte (mb, ldc_op);
7018 mono_mb_emit_stloc (mb, conv_arg);
7019 mono_mb_patch_branch (mb, label_false);
7024 case MARSHAL_ACTION_CONV_OUT:
7026 int label_false, label_end;
7030 mono_mb_emit_ldarg (mb, argnum);
7031 mono_mb_emit_ldloc (mb, conv_arg);
7033 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7034 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7036 label_end = mono_mb_emit_branch (mb, CEE_BR);
7037 mono_mb_patch_branch (mb, label_false);
7038 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7039 mono_mb_patch_branch (mb, label_end);
7041 mono_mb_emit_byte (mb, CEE_STIND_I1);
7045 case MARSHAL_ACTION_PUSH:
7047 mono_mb_emit_ldloc_addr (mb, conv_arg);
7049 mono_mb_emit_ldloc (mb, conv_arg);
7051 mono_mb_emit_ldarg (mb, argnum);
7054 case MARSHAL_ACTION_CONV_RESULT:
7055 /* maybe we need to make sure that it fits within 8 bits */
7056 mono_mb_emit_stloc (mb, 3);
7059 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7060 MonoClass* conv_arg_class = mono_defaults.int32_class;
7061 guint8 ldop = CEE_LDIND_I4;
7062 int label_null, label_false;
7064 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7065 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7068 *conv_arg_type = &conv_arg_class->this_arg;
7070 *conv_arg_type = &conv_arg_class->byval_arg;
7073 mono_mb_emit_ldarg (mb, argnum);
7077 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7078 mono_mb_emit_ldarg (mb, argnum);
7079 mono_mb_emit_byte (mb, ldop);
7083 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7084 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7085 mono_mb_emit_stloc (mb, conv_arg);
7086 mono_mb_patch_branch (mb, label_false);
7089 mono_mb_patch_branch (mb, label_null);
7093 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7094 guint8 stop = CEE_STIND_I4;
7095 guint8 ldc_op = CEE_LDC_I4_1;
7096 int label_null,label_false, label_end;;
7101 switch (spec->native) {
7102 case MONO_NATIVE_I1:
7103 case MONO_NATIVE_U1:
7104 stop = CEE_STIND_I1;
7106 case MONO_NATIVE_VARIANTBOOL:
7107 stop = CEE_STIND_I2;
7108 ldc_op = CEE_LDC_I4_M1;
7116 mono_mb_emit_ldarg (mb, argnum);
7117 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7119 mono_mb_emit_ldarg (mb, argnum);
7120 mono_mb_emit_ldloc (mb, conv_arg);
7122 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7123 mono_mb_emit_byte (mb, ldc_op);
7124 label_end = mono_mb_emit_branch (mb, CEE_BR);
7126 mono_mb_patch_branch (mb, label_false);
7127 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7128 mono_mb_patch_branch (mb, label_end);
7130 mono_mb_emit_byte (mb, stop);
7131 mono_mb_patch_branch (mb, label_null);
7136 g_assert_not_reached ();
7143 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7144 MonoMarshalSpec *spec, int conv_arg,
7145 MonoType **conv_arg_type, MarshalAction action)
7148 MonoMethodBuilder *mb = m->mb;
7151 case MARSHAL_ACTION_CONV_IN:
7152 /* MS seems to allow this in some cases, ie. bxc #158 */
7154 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7155 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7156 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7161 case MARSHAL_ACTION_PUSH:
7162 mono_mb_emit_ldarg (mb, argnum);
7165 case MARSHAL_ACTION_CONV_RESULT:
7166 /* no conversions necessary */
7167 mono_mb_emit_stloc (mb, 3);
7178 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7179 MonoMarshalSpec *spec, int conv_arg,
7180 MonoType **conv_arg_type, MarshalAction action)
7183 MonoMethodBuilder *mb = m->mb;
7186 case MARSHAL_ACTION_PUSH:
7187 /* fixme: dont know how to marshal that. We cant simply
7188 * convert it to a one byte UTF8 character, because an
7189 * unicode character may need more that one byte in UTF8 */
7190 mono_mb_emit_ldarg (mb, argnum);
7193 case MARSHAL_ACTION_CONV_RESULT:
7194 /* fixme: we need conversions here */
7195 mono_mb_emit_stloc (mb, 3);
7206 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7207 MonoMarshalSpec *spec, int conv_arg,
7208 MonoType **conv_arg_type, MarshalAction action)
7211 MonoMethodBuilder *mb = m->mb;
7214 case MARSHAL_ACTION_PUSH:
7215 mono_mb_emit_ldarg (mb, argnum);
7218 case MARSHAL_ACTION_CONV_RESULT:
7219 /* no conversions necessary */
7220 mono_mb_emit_stloc (mb, 3);
7231 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7232 MonoMarshalSpec *spec, int conv_arg,
7233 MonoType **conv_arg_type, MarshalAction action)
7235 /* Ensure that we have marshalling info for this param */
7236 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7238 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7239 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7241 if (spec && spec->native == MONO_NATIVE_ASANY)
7242 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7245 case MONO_TYPE_VALUETYPE:
7246 if (t->data.klass == mono_defaults.handleref_class)
7247 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7249 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7250 case MONO_TYPE_STRING:
7251 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7252 case MONO_TYPE_CLASS:
7253 case MONO_TYPE_OBJECT:
7254 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7255 if (spec && spec->native == MONO_NATIVE_STRUCT)
7256 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7259 #if !defined(DISABLE_COM)
7260 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7261 spec->native == MONO_NATIVE_IDISPATCH ||
7262 spec->native == MONO_NATIVE_INTERFACE))
7263 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7264 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7265 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7266 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7267 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7270 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7271 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7272 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7274 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7275 case MONO_TYPE_ARRAY:
7276 case MONO_TYPE_SZARRAY:
7277 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7278 case MONO_TYPE_BOOLEAN:
7279 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7281 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7282 case MONO_TYPE_CHAR:
7283 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7296 case MONO_TYPE_FNPTR:
7297 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7298 case MONO_TYPE_GENERICINST:
7299 if (mono_type_generic_inst_is_valuetype (t))
7300 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7302 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7310 * mono_marshal_emit_native_wrapper:
7311 * @image: the image to use for looking up custom marshallers
7312 * @sig: The signature of the native function
7313 * @piinfo: Marshalling information
7314 * @mspecs: Marshalling information
7315 * @aot: whenever the created method will be compiled by the AOT compiler
7316 * @method: if non-NULL, the pinvoke method to call
7317 * @check_exceptions: Whenever to check for pending exceptions after the native call
7318 * @func_param: the function to call is passed as a boxed IntPtr as the first parameter
7320 * generates IL code for the pinvoke wrapper, the generated code calls @func.
7323 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)
7325 EmitMarshalContext m;
7326 MonoMethodSignature *csig;
7328 int i, argnum, *tmp_locals;
7329 int type, param_shift = 0;
7330 int coop_gc_stack_dummy, coop_gc_var;
7332 memset (&m, 0, sizeof (m));
7337 /* we copy the signature, so that we can set pinvoke to 0 */
7339 /* The function address is passed as the first argument */
7340 g_assert (!sig->hasthis);
7343 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7351 /* we allocate local for use with emit_struct_conv() */
7352 /* allocate local 0 (pointer) src_ptr */
7353 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7354 /* allocate local 1 (pointer) dst_ptr */
7355 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7356 /* allocate local 2 (boolean) delete_old */
7357 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7359 /* delete_old = FALSE */
7360 mono_mb_emit_icon (mb, 0);
7361 mono_mb_emit_stloc (mb, 2);
7363 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7364 /* allocate local 3 to store the return value */
7365 mono_mb_add_local (mb, sig->ret);
7368 if (mono_threads_is_coop_enabled ()) {
7369 /* local 4, dummy local used to get a stack address for suspend funcs */
7370 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7371 /* local 5, the local to be used when calling the suspend funcs */
7372 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7376 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7378 * ret = method (...);
7380 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7387 if (MONO_TYPE_ISSTRUCT (sig->ret))
7388 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7390 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7391 /* Return type custom marshaling */
7393 * Since we can't determine the return type of the unmanaged function,
7394 * we assume it returns a pointer, and pass that pointer to
7395 * MarshalNativeToManaged.
7397 csig->ret = &mono_defaults.int_class->byval_arg;
7400 /* we first do all conversions */
7401 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7402 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7404 for (i = 0; i < sig->param_count; i ++) {
7405 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7408 // In coop mode need to register blocking state during native call
7409 if (mono_threads_is_coop_enabled ()) {
7410 // Perform an extra, early lookup of the function address, so any exceptions
7411 // potentially resulting from the lookup occur before entering blocking mode.
7412 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7413 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7414 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7415 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7418 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7419 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7420 mono_mb_emit_stloc (mb, coop_gc_var);
7423 /* push all arguments */
7426 mono_mb_emit_byte (mb, CEE_LDARG_0);
7428 for (i = 0; i < sig->param_count; i++) {
7429 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7432 /* call the native method */
7434 mono_mb_emit_byte (mb, CEE_LDARG_0);
7435 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7436 mono_mb_emit_byte (mb, CEE_LDIND_I);
7437 mono_mb_emit_calli (mb, csig);
7438 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7440 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7442 g_assert_not_reached ();
7446 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7447 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7448 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7449 mono_mb_emit_calli (mb, csig);
7451 mono_mb_emit_native_call (mb, csig, func);
7455 /* Set LastError if needed */
7456 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7458 static MonoMethodSignature *get_last_error_sig = NULL;
7459 if (!get_last_error_sig) {
7460 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7461 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7462 get_last_error_sig->pinvoke = 1;
7466 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7467 * clobber its value.
7469 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7470 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7472 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7476 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7477 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7478 mono_class_init (klass);
7479 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
7480 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7481 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7482 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7483 mono_mb_emit_stloc (mb, m.vtaddr_var);
7487 /* Unblock before converting the result, since that can involve calls into the runtime */
7488 if (mono_threads_is_coop_enabled ()) {
7489 mono_mb_emit_ldloc (mb, coop_gc_var);
7490 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7491 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7494 /* convert the result */
7495 if (!sig->ret->byref) {
7496 MonoMarshalSpec *spec = mspecs [0];
7497 type = sig->ret->type;
7499 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7500 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7504 case MONO_TYPE_VOID:
7506 case MONO_TYPE_VALUETYPE:
7507 klass = sig->ret->data.klass;
7508 if (klass->enumtype) {
7509 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7512 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7526 case MONO_TYPE_FNPTR:
7527 case MONO_TYPE_STRING:
7528 case MONO_TYPE_CLASS:
7529 case MONO_TYPE_OBJECT:
7530 case MONO_TYPE_BOOLEAN:
7531 case MONO_TYPE_ARRAY:
7532 case MONO_TYPE_SZARRAY:
7533 case MONO_TYPE_CHAR:
7535 case MONO_TYPE_GENERICINST:
7536 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7538 case MONO_TYPE_TYPEDBYREF:
7540 g_warning ("return type 0x%02x unknown", sig->ret->type);
7541 g_assert_not_reached ();
7545 mono_mb_emit_stloc (mb, 3);
7549 * Need to call this after converting the result since MONO_VTADDR needs
7550 * to be adjacent to the call instruction.
7552 if (check_exceptions)
7553 emit_thread_interrupt_checkpoint (mb);
7555 /* we need to convert byref arguments back and free string arrays */
7556 for (i = 0; i < sig->param_count; i++) {
7557 MonoType *t = sig->params [i];
7558 MonoMarshalSpec *spec = mspecs [i + 1];
7560 argnum = i + param_shift;
7562 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7563 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7568 case MONO_TYPE_STRING:
7569 case MONO_TYPE_VALUETYPE:
7570 case MONO_TYPE_CLASS:
7571 case MONO_TYPE_OBJECT:
7572 case MONO_TYPE_SZARRAY:
7573 case MONO_TYPE_BOOLEAN:
7574 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7581 if (!MONO_TYPE_IS_VOID(sig->ret))
7582 mono_mb_emit_ldloc (mb, 3);
7584 mono_mb_emit_byte (mb, CEE_RET);
7586 #endif /* DISABLE_JIT */
7589 * mono_marshal_get_native_wrapper:
7590 * @method: The MonoMethod to wrap.
7591 * @check_exceptions: Whenever to check for pending exceptions
7593 * generates IL code for the pinvoke wrapper (the generated method
7594 * calls the unmanaged code in piinfo->addr)
7597 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7599 MonoMethodSignature *sig, *csig;
7600 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7601 MonoMethodBuilder *mb;
7602 MonoMarshalSpec **mspecs;
7605 gboolean pinvoke = FALSE;
7608 const char *exc_class = "MissingMethodException";
7609 const char *exc_arg = NULL;
7612 g_assert (method != NULL);
7613 g_assert (mono_method_signature (method)->pinvoke);
7615 GHashTable **cache_ptr;
7618 if (check_exceptions)
7619 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7621 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7623 if (check_exceptions)
7624 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7626 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7629 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7631 if ((res = mono_marshal_find_in_cache (cache, method)))
7634 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7635 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7639 return mono_cominterop_get_native_wrapper (method);
7641 g_assert_not_reached ();
7645 sig = mono_method_signature (method);
7647 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7648 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7651 if (!piinfo->addr) {
7653 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7654 exc_arg = "Method contains unsupported native code";
7656 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7658 piinfo->addr = mono_lookup_internal_call (method);
7662 /* hack - redirect certain string constructors to CreateString */
7663 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7664 g_assert (!pinvoke);
7665 g_assert (method->string_ctor);
7666 g_assert (sig->hasthis);
7668 /* CreateString returns a value */
7669 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7670 csig->ret = &mono_defaults.string_class->byval_arg;
7674 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7675 if (!strcmp ("CreateString", res->name) &&
7676 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7679 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7680 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7682 /* create a wrapper to preserve .ctor in stack trace */
7683 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7686 mono_mb_emit_byte (mb, CEE_LDARG_0);
7687 for (i = 1; i <= csig->param_count; i++)
7688 mono_mb_emit_ldarg (mb, i);
7689 mono_mb_emit_managed_call (mb, res, NULL);
7690 mono_mb_emit_byte (mb, CEE_RET);
7693 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7694 info->d.string_ctor.method = method;
7696 /* use native_wrapper_cache because internal calls are looked up there */
7697 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7698 csig->param_count + 1, info, NULL);
7705 /* exception will be thrown */
7706 piinfo->addr = NULL;
7707 g_warning ("cannot find CreateString for .ctor");
7710 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7712 mb->method->save_lmf = 1;
7715 * In AOT mode and embedding scenarios, it is possible that the icall is not
7716 * registered in the runtime doing the AOT compilation.
7718 if (!piinfo->addr && !aot) {
7720 mono_mb_emit_exception (mb, exc_class, exc_arg);
7722 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7723 info->d.managed_to_native.method = method;
7725 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7727 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7728 csig->param_count + 16, info, NULL);
7734 /* internal calls: we simply push all arguments and call the method (no conversions) */
7735 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7737 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7739 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7741 /* hack - string constructors returns a value */
7742 if (method->string_ctor)
7743 csig->ret = &mono_defaults.string_class->byval_arg;
7750 * Add a null check since public icalls can be called with 'call' which
7751 * does no such check.
7753 mono_mb_emit_byte (mb, CEE_LDARG_0);
7754 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
7755 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
7756 mono_mb_patch_branch (mb, pos);
7758 mono_mb_emit_byte (mb, CEE_LDARG_0);
7761 for (i = 0; i < sig->param_count; i++)
7762 mono_mb_emit_ldarg (mb, i + sig->hasthis);
7765 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7766 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7767 mono_mb_emit_calli (mb, csig);
7769 g_assert (piinfo->addr);
7770 mono_mb_emit_native_call (mb, csig, piinfo->addr);
7772 if (check_exceptions)
7773 emit_thread_interrupt_checkpoint (mb);
7774 mono_mb_emit_byte (mb, CEE_RET);
7776 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7777 info->d.managed_to_native.method = method;
7779 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
7781 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7790 g_assert (piinfo->addr);
7793 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
7794 mono_method_get_marshal_info (method, mspecs);
7796 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
7798 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
7799 info->d.managed_to_native.method = method;
7801 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7803 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
7808 for (i = sig->param_count; i >= 0; i--)
7810 mono_metadata_free_marshal_spec (mspecs [i]);
7814 /* mono_method_print_code (res); */
7820 * mono_marshal_get_native_func_wrapper:
7821 * @image: The image to use for memory allocation and for looking up custom marshallers.
7822 * @sig: The signature of the function
7823 * @func: The native function to wrap
7825 * Returns a wrapper method around native functions, similar to the pinvoke
7829 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
7830 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
7832 MonoMethodSignature *csig;
7834 SignaturePointerPair key, *new_key;
7835 MonoMethodBuilder *mb;
7844 // Generic types are not safe to place in MonoImage caches.
7845 g_assert (!sig->is_inflated);
7847 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
7848 if ((res = mono_marshal_find_in_cache (cache, &key)))
7851 name = g_strdup_printf ("wrapper_native_%p", func);
7852 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7853 mb->method->save_lmf = 1;
7856 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
7859 csig = mono_metadata_signature_dup_full (image, sig);
7862 new_key = g_new (SignaturePointerPair,1);
7863 new_key->sig = csig;
7864 new_key->pointer = func;
7866 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
7872 mono_marshal_set_wrapper_info (res, NULL);
7878 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
7882 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
7884 MonoMethodSignature *sig, *csig;
7885 MonoMethodBuilder *mb;
7890 MonoMethodPInvoke mpiinfo;
7891 MonoMethodPInvoke *piinfo = &mpiinfo;
7892 MonoMarshalSpec **mspecs;
7893 MonoMethod *invoke = mono_get_delegate_invoke (klass);
7894 MonoImage *image = invoke->klass->image;
7897 // FIXME: include UnmanagedFunctionPointerAttribute info
7900 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
7902 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
7904 if ((res = mono_marshal_find_in_cache (cache, invoke)))
7907 memset (&mpiinfo, 0, sizeof (mpiinfo));
7908 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
7910 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
7911 mono_method_get_marshal_info (invoke, mspecs);
7912 /* Freed below so don't alloc from mempool */
7913 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
7916 name = g_strdup_printf ("wrapper_aot_native");
7917 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7918 mb->method->save_lmf = 1;
7921 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
7924 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
7925 info->d.managed_to_native.method = invoke;
7927 g_assert (!sig->hasthis);
7928 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
7930 res = mono_mb_create_and_cache_full (cache, invoke,
7931 mb, csig, csig->param_count + 16,
7935 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
7937 mono_metadata_free_marshal_spec (mspecs [i]);
7945 * mono_marshal_emit_managed_wrapper:
7947 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
7948 * the delegate which wraps the managed method to be called. For closed delegates,
7949 * it could have fewer parameters than the method it wraps.
7950 * THIS_LOC is the memory location where the target of the delegate is stored.
7953 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
7956 MonoMethodSignature *sig, *csig;
7962 /* we first do all conversions */
7963 for (i = 0; i < sig->param_count; i ++) {
7964 MonoType *t = sig->params [i];
7967 case MONO_TYPE_OBJECT:
7968 case MONO_TYPE_CLASS:
7969 case MONO_TYPE_VALUETYPE:
7970 case MONO_TYPE_ARRAY:
7971 case MONO_TYPE_SZARRAY:
7972 case MONO_TYPE_STRING:
7973 case MONO_TYPE_BOOLEAN:
7974 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
7978 if (!sig->ret->byref) {
7979 switch (sig->ret->type) {
7980 case MONO_TYPE_STRING:
7981 csig->ret = &mono_defaults.int_class->byval_arg;
7988 MonoMethodSignature *sig, *csig;
7989 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
7990 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
7991 int leave_try_pos, leave_catch_pos, ex_m1_pos;
7992 gboolean closed = FALSE;
7997 /* allocate local 0 (pointer) src_ptr */
7998 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7999 /* allocate local 1 (pointer) dst_ptr */
8000 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8001 /* allocate local 2 (boolean) delete_old */
8002 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8004 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8005 /* Closed delegate */
8006 g_assert (sig->param_count == invoke_sig->param_count + 1);
8008 /* Use a new signature without the first argument */
8009 sig = mono_metadata_signature_dup (sig);
8010 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8011 sig->param_count --;
8014 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8015 /* allocate local 3 to store the return value */
8016 mono_mb_add_local (mb, sig->ret);
8019 if (MONO_TYPE_ISSTRUCT (sig->ret))
8020 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8022 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8023 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8025 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8026 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8031 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8032 * mono_threads_attach_coop ();
8036 * ret = method (...);
8037 * } catch (Exception e) {
8038 * ex = mono_gchandle_new (e, false);
8040 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8041 * mono_threads_detach_coop ();
8044 * mono_marshal_ftnptr_eh_callback (ex);
8050 clauses = g_new0 (MonoExceptionClause, 2);
8052 clause_catch = &clauses [0];
8053 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8054 clause_catch->data.catch_class = mono_defaults.exception_class;
8056 clause_finally = &clauses [1];
8057 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8059 mono_mb_emit_icon (mb, 0);
8060 mono_mb_emit_stloc (mb, 2);
8062 mono_mb_emit_icon (mb, -1);
8063 mono_mb_emit_byte (mb, CEE_CONV_U4);
8064 mono_mb_emit_stloc (mb, ex_local);
8067 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8069 if (!mono_threads_is_coop_enabled ()) {
8070 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8071 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8073 /* mono_threads_attach_coop (); */
8074 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8075 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8076 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8077 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8078 mono_mb_emit_stloc (mb, attach_cookie_local);
8081 /* <interrupt check> */
8082 emit_thread_interrupt_checkpoint (mb);
8084 /* we first do all conversions */
8085 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8086 for (i = 0; i < sig->param_count; i ++) {
8087 MonoType *t = sig->params [i];
8090 case MONO_TYPE_OBJECT:
8091 case MONO_TYPE_CLASS:
8092 case MONO_TYPE_VALUETYPE:
8093 case MONO_TYPE_ARRAY:
8094 case MONO_TYPE_SZARRAY:
8095 case MONO_TYPE_STRING:
8096 case MONO_TYPE_BOOLEAN:
8097 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8107 if (target_handle) {
8108 mono_mb_emit_icon (mb, (gint32)target_handle);
8109 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8112 g_assert_not_reached ();
8114 } else if (closed) {
8115 mono_mb_emit_icon (mb, (gint32)target_handle);
8116 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8119 for (i = 0; i < sig->param_count; i++) {
8120 MonoType *t = sig->params [i];
8122 if (tmp_locals [i]) {
8124 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8126 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8129 mono_mb_emit_ldarg (mb, i);
8132 /* ret = method (...) */
8133 mono_mb_emit_managed_call (mb, method, NULL);
8135 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8136 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8137 mono_class_init (klass);
8138 if (!(((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) || klass->blittable)) {
8139 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8140 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8141 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8142 mono_mb_emit_stloc (mb, m->vtaddr_var);
8146 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8147 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8148 } else if (!sig->ret->byref) {
8149 switch (sig->ret->type) {
8150 case MONO_TYPE_VOID:
8152 case MONO_TYPE_BOOLEAN:
8155 case MONO_TYPE_CHAR:
8167 case MONO_TYPE_OBJECT:
8168 mono_mb_emit_stloc (mb, 3);
8170 case MONO_TYPE_STRING:
8171 csig->ret = &mono_defaults.int_class->byval_arg;
8172 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8174 case MONO_TYPE_VALUETYPE:
8175 case MONO_TYPE_CLASS:
8176 case MONO_TYPE_SZARRAY:
8177 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8180 g_warning ("return type 0x%02x unknown", sig->ret->type);
8181 g_assert_not_reached ();
8184 mono_mb_emit_stloc (mb, 3);
8187 /* Convert byref arguments back */
8188 for (i = 0; i < sig->param_count; i ++) {
8189 MonoType *t = sig->params [i];
8190 MonoMarshalSpec *spec = mspecs [i + 1];
8192 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8193 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8195 else if (t->byref) {
8197 case MONO_TYPE_CLASS:
8198 case MONO_TYPE_VALUETYPE:
8199 case MONO_TYPE_OBJECT:
8200 case MONO_TYPE_STRING:
8201 case MONO_TYPE_BOOLEAN:
8202 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8208 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8209 /* The [Out] information is encoded in the delegate signature */
8211 case MONO_TYPE_SZARRAY:
8212 case MONO_TYPE_CLASS:
8213 case MONO_TYPE_VALUETYPE:
8214 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8217 g_assert_not_reached ();
8222 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8226 /* catch (Exception e) { */
8227 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8228 clause_catch->handler_offset = mono_mb_get_label (mb);
8230 mono_mb_emit_stloc (mb, e_local);
8232 /* ex = mono_gchandle_new (e, false); */
8233 mono_mb_emit_ldloc (mb, e_local);
8234 mono_mb_emit_icon (mb, 0);
8235 mono_mb_emit_icall (mb, mono_gchandle_new);
8236 mono_mb_emit_stloc (mb, ex_local);
8238 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8241 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8244 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8245 clause_finally->handler_offset = mono_mb_get_label (mb);
8247 if (!mono_threads_is_coop_enabled ()) {
8248 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8249 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8251 /* mono_threads_detach_coop (); */
8252 mono_mb_emit_ldloc (mb, attach_cookie_local);
8253 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8254 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8258 mono_mb_emit_ldloc (mb, ex_local);
8259 mono_mb_emit_icon (mb, -1);
8260 mono_mb_emit_byte (mb, CEE_CONV_U4);
8261 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8263 /* mono_marshal_ftnptr_eh_callback (ex) */
8264 mono_mb_emit_ldloc (mb, ex_local);
8265 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8268 mono_mb_patch_branch (mb, ex_m1_pos);
8270 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8272 /* } [endfinally] */
8273 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8275 mono_mb_patch_branch (mb, leave_try_pos);
8276 mono_mb_patch_branch (mb, leave_catch_pos);
8279 if (m->retobj_var) {
8280 mono_mb_emit_ldloc (mb, m->retobj_var);
8281 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8282 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8285 if (!MONO_TYPE_IS_VOID(sig->ret))
8286 mono_mb_emit_ldloc (mb, 3);
8287 mono_mb_emit_byte (mb, CEE_RET);
8290 mono_mb_set_clauses (mb, 2, clauses);
8298 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8300 MonoMethodSignature *sig;
8305 * Under windows, delegates passed to native code must use the STDCALL
8306 * calling convention.
8308 csig->call_convention = MONO_CALL_STDCALL;
8311 sig = mono_method_signature (method);
8313 /* Change default calling convention if needed */
8314 /* Why is this a modopt ? */
8315 if (sig->ret && sig->ret->num_mods) {
8316 for (i = 0; i < sig->ret->num_mods; ++i) {
8318 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8319 g_assert (mono_error_ok (&error));
8320 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8321 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8322 csig->call_convention = MONO_CALL_C;
8323 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8324 csig->call_convention = MONO_CALL_STDCALL;
8325 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8326 csig->call_convention = MONO_CALL_FASTCALL;
8327 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8328 csig->call_convention = MONO_CALL_THISCALL;
8335 * generates IL code to call managed methods from unmanaged code
8336 * If target_handle==0, the wrapper info will be a WrapperInfo structure.
8339 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle)
8342 MonoMethodSignature *sig, *csig, *invoke_sig;
8343 MonoMethodBuilder *mb;
8344 MonoMethod *res, *invoke;
8345 MonoMarshalSpec **mspecs;
8346 MonoMethodPInvoke piinfo;
8349 EmitMarshalContext m;
8351 g_assert (method != NULL);
8352 g_assert (!(method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8355 * FIXME: Should cache the method+delegate type pair, since the same method
8356 * could be called with different delegates, thus different marshalling
8359 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8361 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8364 invoke = mono_get_delegate_invoke (delegate_klass);
8365 invoke_sig = mono_method_signature (invoke);
8367 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8368 mono_method_get_marshal_info (invoke, mspecs);
8370 sig = mono_method_signature (method);
8372 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8374 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8375 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8377 /* we copy the signature, so that we can modify it */
8379 /* Need to free this later */
8380 csig = mono_metadata_signature_dup (invoke_sig);
8382 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8386 memset (&m, 0, sizeof (m));
8392 m.image = method->klass->image;
8394 mono_marshal_set_callconv_from_modopt (invoke, csig);
8396 /* The attribute is only available in Net 2.0 */
8397 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8398 MonoCustomAttrInfo *cinfo;
8399 MonoCustomAttrEntry *attr;
8402 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8403 * contents of the attribute without constructing it, as that might not be
8404 * possible when running in cross-compiling mode.
8406 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, &error);
8407 mono_error_assert_ok (&error);
8410 for (i = 0; i < cinfo->num_attrs; ++i) {
8411 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8412 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8413 attr = &cinfo->attrs [i];
8419 MonoArray *typed_args, *named_args;
8420 CattrNamedArg *arginfo;
8424 MonoBoolean set_last_error = 0;
8427 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8428 g_assert (mono_error_ok (&error));
8429 g_assert (mono_array_length (typed_args) == 1);
8432 o = mono_array_get (typed_args, MonoObject*, 0);
8433 call_conv = *(gint32*)mono_object_unbox (o);
8436 for (i = 0; i < mono_array_length (named_args); ++i) {
8437 CattrNamedArg *narg = &arginfo [i];
8439 o = mono_array_get (named_args, MonoObject*, i);
8441 g_assert (narg->field);
8442 if (!strcmp (narg->field->name, "CharSet")) {
8443 charset = *(gint32*)mono_object_unbox (o);
8444 } else if (!strcmp (narg->field->name, "SetLastError")) {
8445 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8446 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8447 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8448 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8449 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8451 g_assert_not_reached ();
8457 memset (&piinfo, 0, sizeof (piinfo));
8459 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8461 csig->call_convention = call_conv - 1;
8464 if (cinfo && !cinfo->cached)
8465 mono_custom_attrs_free (cinfo);
8468 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8470 if (!target_handle) {
8473 // FIXME: Associate it with the method+delegate_klass pair
8474 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8475 info->d.native_to_managed.method = method;
8476 info->d.native_to_managed.klass = delegate_klass;
8478 res = mono_mb_create_and_cache_full (cache, method,
8479 mb, csig, sig->param_count + 16,
8485 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8489 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8491 mono_metadata_free_marshal_spec (mspecs [i]);
8494 /* mono_method_print_code (res); */
8500 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8504 MonoMethodSignature *sig;
8505 MonoMethodBuilder *mb;
8510 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8512 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8515 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8516 MonoMethodSignature *csig;
8517 MonoMarshalSpec **mspecs;
8518 EmitMarshalContext m;
8520 sig = mono_method_signature (method);
8521 g_assert (!sig->hasthis);
8523 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8524 mono_method_get_marshal_info (method, mspecs);
8526 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8527 csig = mono_metadata_signature_dup_full (image, sig);
8531 memset (&m, 0, sizeof (m));
8539 mono_marshal_set_callconv_from_modopt (method, csig);
8541 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8543 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8548 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8551 for (i = sig->param_count; i >= 0; i--)
8553 mono_metadata_free_marshal_spec (mspecs [i]);
8556 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8557 mono_error_assert_ok (&error);
8558 return compiled_ptr;
8561 sig = mono_method_signature (method);
8562 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8564 param_count = sig->param_count + sig->hasthis;
8566 for (i = 0; i < param_count; i++)
8567 mono_mb_emit_ldarg (mb, i);
8569 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8570 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8572 mono_mb_emit_op (mb, CEE_CALL, method);
8573 mono_mb_emit_byte (mb, CEE_RET);
8578 method = mono_mb_create (mb, sig, param_count, NULL);
8581 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8582 mono_error_assert_ok (&error);
8583 return compiled_ptr;
8589 * The code directly following this is the cache hit, value positive branch
8591 * This function takes a new method builder with 0 locals and adds two locals
8592 * to create multiple out-branches and the fall through state of having the object
8593 * on the stack after a cache miss
8596 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
8597 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
8598 MonoMethodBuilder *mb)
8602 /* allocate local 0 (pointer) obj_vtable */
8603 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8604 /* allocate local 1 (pointer) cached_vtable */
8605 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8608 mono_mb_emit_ldarg (mb, obj_arg_position);
8609 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
8611 /*obj_vtable = obj->vtable;*/
8612 mono_mb_emit_ldarg (mb, obj_arg_position);
8613 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
8614 mono_mb_emit_byte (mb, CEE_LDIND_I);
8615 mono_mb_emit_stloc (mb, 0);
8617 /* cached_vtable = *cache*/
8618 mono_mb_emit_ldarg (mb, cache_arg_position);
8619 mono_mb_emit_byte (mb, CEE_LDIND_I);
8620 mono_mb_emit_stloc (mb, 1);
8622 mono_mb_emit_ldloc (mb, 1);
8623 mono_mb_emit_byte (mb, CEE_LDC_I4);
8624 mono_mb_emit_i4 (mb, ~0x1);
8625 mono_mb_emit_byte (mb, CEE_CONV_I);
8626 mono_mb_emit_byte (mb, CEE_AND);
8627 mono_mb_emit_ldloc (mb, 0);
8628 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
8629 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
8631 /*return (cached_vtable & 0x1) ? NULL : obj;*/
8632 mono_mb_emit_ldloc (mb, 1);
8633 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
8634 mono_mb_emit_byte (mb, CEE_CONV_U);
8635 mono_mb_emit_byte (mb, CEE_AND);
8636 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
8637 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
8640 mono_mb_patch_branch (mb, cache_miss_pos);
8643 mono_mb_emit_ldarg (mb, obj_arg_position);
8644 mono_mb_emit_ldarg (mb, class_arg_position);
8645 mono_mb_emit_ldarg (mb, cache_arg_position);
8646 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
8649 #endif /* DISABLE_JIT */
8652 * This does the equivalent of mono_object_castclass_with_cache.
8655 mono_marshal_get_castclass_with_cache (void)
8657 static MonoMethod *cached;
8659 MonoMethodBuilder *mb;
8660 MonoMethodSignature *sig;
8661 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
8664 const int obj_arg_position = 0;
8665 const int class_arg_position = 1;
8666 const int cache_arg_position = 2;
8671 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
8672 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
8673 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
8674 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
8675 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
8676 sig->ret = &mono_defaults.object_class->byval_arg;
8680 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
8681 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
8682 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8685 mono_mb_patch_branch (mb, positive_cache_hit_pos);
8686 mono_mb_emit_ldarg (mb, obj_arg_position);
8687 mono_mb_emit_byte (mb, CEE_RET);
8690 mono_mb_patch_branch (mb, negative_cache_hit_pos);
8691 mono_mb_patch_branch (mb, invalid_cast_pos);
8692 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8695 mono_mb_patch_branch (mb, return_null_pos);
8696 mono_mb_emit_byte (mb, CEE_LDNULL);
8697 mono_mb_emit_byte (mb, CEE_RET);
8698 #endif /* DISABLE_JIT */
8700 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
8701 res = mono_mb_create (mb, sig, 8, info);
8704 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
8705 mono_free_method (res);
8706 mono_metadata_free_method_signature (sig);
8713 /* this is an icall */
8715 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
8718 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
8719 if (mono_error_set_pending_exception (&error))
8722 #ifndef DISABLE_REMOTING
8723 if (obj->vtable->klass == mono_defaults.transparent_proxy_class)
8727 uintptr_t cache_update = (uintptr_t)obj->vtable;
8729 cache_update = cache_update | 0x1;
8731 *cache = cache_update;
8737 * This does the equivalent of mono_object_isinst_with_cache.
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)
8916 mono_marshal_get_castclass (MonoClass *klass)
8918 static MonoMethodSignature *castclass_sig = NULL;
8921 #ifndef DISABLE_REMOTING
8922 int pos_was_ok, pos_was_ok2;
8925 MonoMethodBuilder *mb;
8928 cache = get_cache (&klass->image->castclass_cache, mono_aligned_addr_hash, NULL);
8929 if ((res = mono_marshal_find_in_cache (cache, klass)))
8932 if (!castclass_sig) {
8933 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8934 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8935 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8936 castclass_sig->pinvoke = 0;
8939 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8940 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8943 mb->method->save_lmf = 1;
8946 /* check if the object is a proxy that needs special cast */
8947 mono_mb_emit_ldarg (mb, 0);
8948 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8949 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8951 /* The result of MONO_CCASTCLASS can be:
8952 0) the cast is valid
8953 1) cast of unknown proxy type
8954 or an exception if the cast is is invalid
8956 #ifndef DISABLE_REMOTING
8957 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8959 /* get the real proxy from the transparent proxy*/
8961 mono_mb_emit_ldarg (mb, 0);
8962 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8963 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8966 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8969 mono_mb_patch_branch (mb, pos_was_ok);
8970 mono_mb_patch_branch (mb, pos_was_ok2);
8972 /* MONO_CCASTCLASS leaves an int in the stack with the result, pop it. */
8973 mono_mb_emit_byte (mb, CEE_POP);
8974 #endif /* DISABLE_REMOTING */
8976 mono_mb_emit_ldarg (mb, 0);
8979 mono_mb_emit_byte (mb, CEE_RET);
8980 #endif /* DISABLE_JIT */
8982 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8984 res = mono_mb_create_and_cache_full (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16,
8992 * mono_marshal_get_struct_to_ptr:
8995 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8998 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9000 MonoMethodBuilder *mb;
9001 static MonoMethod *stoptr = NULL;
9005 g_assert (klass != NULL);
9007 mono_marshal_load_type_info (klass);
9009 if (klass->marshal_info->str_to_ptr)
9010 return klass->marshal_info->str_to_ptr;
9013 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9016 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9019 if (klass->blittable) {
9020 mono_mb_emit_byte (mb, CEE_LDARG_1);
9021 mono_mb_emit_byte (mb, CEE_LDARG_0);
9022 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9023 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9024 mono_mb_emit_byte (mb, CEE_PREFIX1);
9025 mono_mb_emit_byte (mb, CEE_CPBLK);
9028 /* allocate local 0 (pointer) src_ptr */
9029 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9030 /* allocate local 1 (pointer) dst_ptr */
9031 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9032 /* allocate local 2 (boolean) delete_old */
9033 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9034 mono_mb_emit_byte (mb, CEE_LDARG_2);
9035 mono_mb_emit_stloc (mb, 2);
9037 /* initialize src_ptr to point to the start of object data */
9038 mono_mb_emit_byte (mb, CEE_LDARG_0);
9039 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9040 mono_mb_emit_stloc (mb, 0);
9042 /* initialize dst_ptr */
9043 mono_mb_emit_byte (mb, CEE_LDARG_1);
9044 mono_mb_emit_stloc (mb, 1);
9046 emit_struct_conv (mb, klass, FALSE);
9049 mono_mb_emit_byte (mb, CEE_RET);
9051 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9052 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9055 mono_marshal_lock ();
9056 if (!klass->marshal_info->str_to_ptr)
9057 klass->marshal_info->str_to_ptr = res;
9059 res = klass->marshal_info->str_to_ptr;
9060 mono_marshal_unlock ();
9065 * mono_marshal_get_ptr_to_struct:
9068 * generates IL code for PtrToStructure (IntPtr src, object structure)
9071 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9073 MonoMethodBuilder *mb;
9074 static MonoMethodSignature *ptostr = NULL;
9078 g_assert (klass != NULL);
9080 mono_marshal_load_type_info (klass);
9082 if (klass->marshal_info->ptr_to_str)
9083 return klass->marshal_info->ptr_to_str;
9086 MonoMethodSignature *sig;
9088 /* Create the signature corresponding to
9089 static void PtrToStructure (IntPtr ptr, object structure);
9090 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9091 sig = mono_create_icall_signature ("void ptr object");
9092 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9094 mono_memory_barrier ();
9098 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9101 if (klass->blittable) {
9102 mono_mb_emit_byte (mb, CEE_LDARG_1);
9103 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9104 mono_mb_emit_byte (mb, CEE_LDARG_0);
9105 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9106 mono_mb_emit_byte (mb, CEE_PREFIX1);
9107 mono_mb_emit_byte (mb, CEE_CPBLK);
9110 /* allocate local 0 (pointer) src_ptr */
9111 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9112 /* allocate local 1 (pointer) dst_ptr */
9113 mono_mb_add_local (mb, &klass->this_arg);
9115 /* initialize src_ptr to point to the start of object data */
9116 mono_mb_emit_byte (mb, CEE_LDARG_0);
9117 mono_mb_emit_stloc (mb, 0);
9119 /* initialize dst_ptr */
9120 mono_mb_emit_byte (mb, CEE_LDARG_1);
9121 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9122 mono_mb_emit_stloc (mb, 1);
9124 emit_struct_conv (mb, klass, TRUE);
9127 mono_mb_emit_byte (mb, CEE_RET);
9129 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9130 res = mono_mb_create (mb, ptostr, 0, info);
9133 mono_marshal_lock ();
9134 if (!klass->marshal_info->ptr_to_str)
9135 klass->marshal_info->ptr_to_str = res;
9137 res = klass->marshal_info->ptr_to_str;
9138 mono_marshal_unlock ();
9143 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9144 * This is used to avoid infinite recursion since it is hard to determine where to
9145 * replace a method with its synchronized wrapper, and where not.
9146 * The runtime should execute METHOD instead of the wrapper.
9149 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9151 MonoMethodBuilder *mb;
9153 MonoMethodSignature *sig;
9155 MonoGenericContext *ctx = NULL;
9156 MonoGenericContainer *container = NULL;
9158 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9159 ctx = &((MonoMethodInflated*)method)->context;
9160 method = ((MonoMethodInflated*)method)->declaring;
9161 container = mono_method_get_generic_container (method);
9163 container = method->klass->generic_container;
9164 g_assert (container);
9167 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9169 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9170 mono_mb_emit_byte (mb, CEE_RET);
9172 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9174 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9175 info->d.synchronized_inner.method = method;
9176 res = mono_mb_create (mb, sig, 0, info);
9180 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9181 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9187 * generates IL code for the synchronized wrapper: the generated method
9188 * calls METHOD while locking 'this' or the parent type.
9191 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9193 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9194 MonoMethodSignature *sig;
9195 MonoExceptionClause *clause;
9196 MonoMethodBuilder *mb;
9200 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9201 MonoGenericContext *ctx = NULL;
9202 MonoMethod *orig_method = NULL;
9203 MonoGenericContainer *container = NULL;
9207 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9210 /* FIXME: Support generic methods too */
9211 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9212 orig_method = method;
9213 ctx = &((MonoMethodInflated*)method)->context;
9214 method = ((MonoMethodInflated*)method)->declaring;
9215 container = mono_method_get_generic_container (method);
9217 container = method->klass->generic_container;
9218 g_assert (container);
9225 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9226 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9230 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9231 if ((res = mono_marshal_find_in_cache (cache, method)))
9235 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9238 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9240 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9241 info->d.synchronized.method = method;
9244 mb->skip_visibility = 1;
9246 if (!MONO_TYPE_IS_VOID (sig->ret))
9247 ret_local = mono_mb_add_local (mb, sig->ret);
9250 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9251 mono_class_set_failure (method->klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
9253 /* This will throw the type load exception when the wrapper is compiled */
9254 mono_mb_emit_byte (mb, CEE_LDNULL);
9255 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9256 mono_mb_emit_byte (mb, CEE_POP);
9258 if (!MONO_TYPE_IS_VOID (sig->ret))
9259 mono_mb_emit_ldloc (mb, ret_local);
9260 mono_mb_emit_byte (mb, CEE_RET);
9263 res = mono_mb_create_and_cache_full (cache, method,
9264 mb, sig, sig->param_count + 16, info, NULL);
9272 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9273 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9275 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9276 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9279 mono_marshal_lock ();
9281 if (!enter_method) {
9282 MonoMethodDesc *desc;
9284 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9285 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9286 g_assert (enter_method);
9287 mono_method_desc_free (desc);
9289 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9290 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9291 g_assert (exit_method);
9292 mono_method_desc_free (desc);
9294 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9295 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9296 g_assert (gettypefromhandle_method);
9297 mono_method_desc_free (desc);
9300 mono_marshal_unlock ();
9303 /* Push this or the type object */
9304 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9305 /* We have special handling for this in the JIT */
9306 int index = mono_mb_add_data (mb, method->klass);
9307 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9308 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9309 mono_mb_emit_i4 (mb, index);
9311 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9314 mono_mb_emit_ldarg (mb, 0);
9315 mono_mb_emit_stloc (mb, this_local);
9317 /* Call Monitor::Enter() */
9318 mono_mb_emit_ldloc (mb, this_local);
9319 mono_mb_emit_ldloc_addr (mb, taken_local);
9320 mono_mb_emit_managed_call (mb, enter_method, NULL);
9322 clause->try_offset = mono_mb_get_label (mb);
9324 /* Call the method */
9326 mono_mb_emit_ldarg (mb, 0);
9327 for (i = 0; i < sig->param_count; i++)
9328 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9332 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9333 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9335 mono_mb_emit_managed_call (mb, method, NULL);
9338 if (!MONO_TYPE_IS_VOID (sig->ret))
9339 mono_mb_emit_stloc (mb, ret_local);
9341 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9343 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9344 clause->handler_offset = mono_mb_get_label (mb);
9346 /* Call Monitor::Exit() if needed */
9347 mono_mb_emit_ldloc (mb, taken_local);
9348 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9349 mono_mb_emit_ldloc (mb, this_local);
9350 mono_mb_emit_managed_call (mb, exit_method, NULL);
9351 mono_mb_patch_branch (mb, pos2);
9352 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9354 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9356 mono_mb_patch_branch (mb, pos);
9357 if (!MONO_TYPE_IS_VOID (sig->ret))
9358 mono_mb_emit_ldloc (mb, ret_local);
9359 mono_mb_emit_byte (mb, CEE_RET);
9361 mono_mb_set_clauses (mb, 1, clause);
9366 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9367 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9369 res = mono_mb_create_and_cache_full (cache, method,
9370 mb, sig, sig->param_count + 16, info, NULL);
9379 * the returned method calls 'method' unboxing the this argument
9382 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9384 MonoMethodSignature *sig = mono_method_signature (method);
9386 MonoMethodBuilder *mb;
9391 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9393 if ((res = mono_marshal_find_in_cache (cache, method)))
9396 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9398 g_assert (sig->hasthis);
9401 mono_mb_emit_ldarg (mb, 0);
9402 mono_mb_emit_icon (mb, sizeof (MonoObject));
9403 mono_mb_emit_byte (mb, CEE_ADD);
9404 for (i = 0; i < sig->param_count; ++i)
9405 mono_mb_emit_ldarg (mb, i + 1);
9406 mono_mb_emit_managed_call (mb, method, NULL);
9407 mono_mb_emit_byte (mb, CEE_RET);
9410 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9411 info->d.unbox.method = method;
9413 res = mono_mb_create_and_cache_full (cache, method,
9414 mb, sig, sig->param_count + 16, info, NULL);
9417 /* mono_method_print_code (res); */
9423 STELEMREF_OBJECT, /*no check at all*/
9424 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9425 STELEMREF_CLASS, /*only the klass->parents check*/
9426 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9427 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9428 STELEMREF_KIND_COUNT
9431 static const char *strelemref_wrapper_name[] = {
9432 "object", "sealed_class", "class", "interface", "complex"
9436 is_monomorphic_array (MonoClass *klass)
9438 MonoClass *element_class;
9439 if (klass->rank != 1)
9442 element_class = klass->element_class;
9443 return (element_class->flags & TYPE_ATTRIBUTE_SEALED) || element_class->valuetype;
9447 get_virtual_stelemref_kind (MonoClass *element_class)
9449 if (element_class == mono_defaults.object_class)
9450 return STELEMREF_OBJECT;
9451 if (is_monomorphic_array (element_class))
9452 return STELEMREF_SEALED_CLASS;
9453 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9454 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9455 #ifdef COMPRESSED_INTERFACE_BITMAP
9456 return STELEMREF_COMPLEX;
9458 return STELEMREF_INTERFACE;
9460 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9461 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9462 return STELEMREF_COMPLEX;
9463 if (element_class->flags & TYPE_ATTRIBUTE_SEALED)
9464 return STELEMREF_SEALED_CLASS;
9465 return STELEMREF_CLASS;
9471 load_array_element_address (MonoMethodBuilder *mb)
9473 mono_mb_emit_ldarg (mb, 0);
9474 mono_mb_emit_ldarg (mb, 1);
9475 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9479 load_array_class (MonoMethodBuilder *mb, int aklass)
9481 mono_mb_emit_ldarg (mb, 0);
9482 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9483 mono_mb_emit_byte (mb, CEE_LDIND_I);
9484 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9485 mono_mb_emit_byte (mb, CEE_LDIND_I);
9486 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9487 mono_mb_emit_byte (mb, CEE_LDIND_I);
9488 mono_mb_emit_stloc (mb, aklass);
9492 load_value_class (MonoMethodBuilder *mb, int vklass)
9494 mono_mb_emit_ldarg (mb, 2);
9495 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9496 mono_mb_emit_byte (mb, CEE_LDIND_I);
9497 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9498 mono_mb_emit_byte (mb, CEE_LDIND_I);
9499 mono_mb_emit_stloc (mb, vklass);
9505 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9507 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9508 printf ("slow vstore of %s\n", name);
9515 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9516 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9517 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9518 * - Add a case for arrays of arrays.
9521 get_virtual_stelemref_wrapper (int kind)
9523 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9524 static MonoMethodSignature *signature;
9525 MonoMethodBuilder *mb;
9528 const char *param_names [16];
9530 int aklass, vklass, vtable, uiid;
9531 int array_slot_addr;
9534 if (cached_methods [kind])
9535 return cached_methods [kind];
9537 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9538 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9542 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9544 /* void this::stelemref (size_t idx, void* value) */
9545 sig->ret = &mono_defaults.void_class->byval_arg;
9546 sig->hasthis = TRUE;
9547 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9548 sig->params [1] = &mono_defaults.object_class->byval_arg;
9553 param_names [0] = "index";
9554 param_names [1] = "value";
9555 mono_mb_set_param_names (mb, param_names);
9557 /*For now simply call plain old stelemref*/
9559 case STELEMREF_OBJECT:
9560 /* ldelema (implicit bound check) */
9561 load_array_element_address (mb);
9563 mono_mb_emit_ldarg (mb, 2);
9564 mono_mb_emit_byte (mb, CEE_STIND_REF);
9565 mono_mb_emit_byte (mb, CEE_RET);
9568 case STELEMREF_COMPLEX:
9570 <ldelema (bound check)>
9573 if (!mono_object_isinst (value, aklass))
9577 *array_slot_addr = value;
9580 throw new ArrayTypeMismatchException ();
9583 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9584 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9588 /*Use this to debug/record stores that are going thru the slow path*/
9589 MonoMethodSignature *csig;
9590 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9591 csig->ret = &mono_defaults.void_class->byval_arg;
9592 csig->params [0] = &mono_defaults.object_class->byval_arg;
9593 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9594 csig->params [2] = &mono_defaults.object_class->byval_arg;
9595 mono_mb_emit_ldarg (mb, 0);
9596 mono_mb_emit_ldarg (mb, 1);
9597 mono_mb_emit_ldarg (mb, 2);
9598 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9602 /* ldelema (implicit bound check) */
9603 load_array_element_address (mb);
9604 mono_mb_emit_stloc (mb, array_slot_addr);
9606 /* if (!value) goto do_store */
9607 mono_mb_emit_ldarg (mb, 2);
9608 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9610 /* aklass = array->vtable->klass->element_class */
9611 load_array_class (mb, aklass);
9613 /*if (mono_object_isinst (value, aklass)) */
9614 mono_mb_emit_ldarg (mb, 2);
9615 mono_mb_emit_ldloc (mb, aklass);
9616 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9617 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9620 mono_mb_patch_branch (mb, b1);
9621 mono_mb_emit_ldloc (mb, array_slot_addr);
9622 mono_mb_emit_ldarg (mb, 2);
9623 mono_mb_emit_byte (mb, CEE_STIND_REF);
9624 mono_mb_emit_byte (mb, CEE_RET);
9627 mono_mb_patch_branch (mb, b2);
9629 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9632 case STELEMREF_SEALED_CLASS:
9634 <ldelema (bound check)>
9638 aklass = array->vtable->klass->element_class;
9639 vklass = value->vtable->klass;
9641 if (vklass != aklass)
9645 *array_slot_addr = value;
9648 throw new ArrayTypeMismatchException ();
9650 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9651 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9652 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9655 /* ldelema (implicit bound check) */
9656 load_array_element_address (mb);
9657 mono_mb_emit_stloc (mb, array_slot_addr);
9659 /* if (!value) goto do_store */
9660 mono_mb_emit_ldarg (mb, 2);
9661 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9663 /* aklass = array->vtable->klass->element_class */
9664 load_array_class (mb, aklass);
9666 /* vklass = value->vtable->klass */
9667 load_value_class (mb, vklass);
9669 /*if (vklass != aklass) goto do_exception; */
9670 mono_mb_emit_ldloc (mb, aklass);
9671 mono_mb_emit_ldloc (mb, vklass);
9672 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9675 mono_mb_patch_branch (mb, b1);
9676 mono_mb_emit_ldloc (mb, array_slot_addr);
9677 mono_mb_emit_ldarg (mb, 2);
9678 mono_mb_emit_byte (mb, CEE_STIND_REF);
9679 mono_mb_emit_byte (mb, CEE_RET);
9682 mono_mb_patch_branch (mb, b2);
9683 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9686 case STELEMREF_CLASS:
9689 <ldelema (bound check)>
9693 aklass = array->vtable->klass->element_class;
9694 vklass = value->vtable->klass;
9696 if (vklass->idepth < aklass->idepth)
9699 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9703 *array_slot_addr = value;
9707 throw new ArrayTypeMismatchException ();
9709 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9710 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9711 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9713 /* ldelema (implicit bound check) */
9714 load_array_element_address (mb);
9715 mono_mb_emit_stloc (mb, array_slot_addr);
9717 /* if (!value) goto do_store */
9718 mono_mb_emit_ldarg (mb, 2);
9719 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9721 /* aklass = array->vtable->klass->element_class */
9722 load_array_class (mb, aklass);
9724 /* vklass = value->vtable->klass */
9725 load_value_class (mb, vklass);
9727 /*if (mono_object_isinst (value, aklass)) */
9728 mono_mb_emit_ldarg (mb, 2);
9729 mono_mb_emit_ldloc (mb, aklass);
9730 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9731 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9733 /* if (vklass->idepth < aklass->idepth) goto failue */
9734 mono_mb_emit_ldloc (mb, vklass);
9735 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9736 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9738 mono_mb_emit_ldloc (mb, aklass);
9739 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9740 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9742 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9744 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9745 mono_mb_emit_ldloc (mb, vklass);
9746 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9747 mono_mb_emit_byte (mb, CEE_LDIND_I);
9749 mono_mb_emit_ldloc (mb, aklass);
9750 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9751 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9752 mono_mb_emit_icon (mb, 1);
9753 mono_mb_emit_byte (mb, CEE_SUB);
9754 mono_mb_emit_icon (mb, sizeof (void*));
9755 mono_mb_emit_byte (mb, CEE_MUL);
9756 mono_mb_emit_byte (mb, CEE_ADD);
9757 mono_mb_emit_byte (mb, CEE_LDIND_I);
9759 mono_mb_emit_ldloc (mb, aklass);
9760 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9763 mono_mb_patch_branch (mb, b1);
9764 mono_mb_emit_ldloc (mb, array_slot_addr);
9765 mono_mb_emit_ldarg (mb, 2);
9766 mono_mb_emit_byte (mb, CEE_STIND_REF);
9767 mono_mb_emit_byte (mb, CEE_RET);
9770 mono_mb_patch_branch (mb, b2);
9771 mono_mb_patch_branch (mb, b3);
9773 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9776 case STELEMREF_INTERFACE:
9783 klass = array->obj.vtable->klass->element_class;
9785 uiid = klass->interface_id;
9786 if (uiid > vt->max_interface_id)
9788 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
9791 mono_array_setref (array, index, value);
9794 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
9796 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9797 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9798 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9799 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9801 /* ldelema (implicit bound check) */
9802 load_array_element_address (mb);
9803 mono_mb_emit_stloc (mb, array_slot_addr);
9805 /* if (!value) goto do_store */
9806 mono_mb_emit_ldarg (mb, 2);
9807 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9809 /* klass = array->vtable->klass->element_class */
9810 load_array_class (mb, aklass);
9812 /* vt = value->vtable */
9813 mono_mb_emit_ldarg (mb, 2);
9814 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9815 mono_mb_emit_byte (mb, CEE_LDIND_I);
9816 mono_mb_emit_stloc (mb, vtable);
9818 /* uiid = klass->interface_id; */
9819 mono_mb_emit_ldloc (mb, aklass);
9820 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
9821 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9822 mono_mb_emit_stloc (mb, uiid);
9824 /*if (uiid > vt->max_interface_id)*/
9825 mono_mb_emit_ldloc (mb, uiid);
9826 mono_mb_emit_ldloc (mb, vtable);
9827 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
9828 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9829 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
9831 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
9833 /*vt->interface_bitmap*/
9834 mono_mb_emit_ldloc (mb, vtable);
9835 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
9836 mono_mb_emit_byte (mb, CEE_LDIND_I);
9839 mono_mb_emit_ldloc (mb, uiid);
9840 mono_mb_emit_icon (mb, 3);
9841 mono_mb_emit_byte (mb, CEE_SHR_UN);
9843 /*vt->interface_bitmap [(uiid) >> 3]*/
9844 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
9845 mono_mb_emit_byte (mb, CEE_LDIND_U1);
9847 /*(1 << ((uiid)&7)))*/
9848 mono_mb_emit_icon (mb, 1);
9849 mono_mb_emit_ldloc (mb, uiid);
9850 mono_mb_emit_icon (mb, 7);
9851 mono_mb_emit_byte (mb, CEE_AND);
9852 mono_mb_emit_byte (mb, CEE_SHL);
9854 /*bitwise and the whole thing*/
9855 mono_mb_emit_byte (mb, CEE_AND);
9856 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9859 mono_mb_patch_branch (mb, b1);
9860 mono_mb_emit_ldloc (mb, array_slot_addr);
9861 mono_mb_emit_ldarg (mb, 2);
9862 mono_mb_emit_byte (mb, CEE_STIND_REF);
9863 mono_mb_emit_byte (mb, CEE_RET);
9866 mono_mb_patch_branch (mb, b2);
9867 mono_mb_patch_branch (mb, b3);
9868 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9872 mono_mb_emit_ldarg (mb, 0);
9873 mono_mb_emit_ldarg (mb, 1);
9874 mono_mb_emit_ldarg (mb, 2);
9875 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
9876 mono_mb_emit_byte (mb, CEE_RET);
9879 #endif /* DISABLE_JIT */
9880 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
9881 info->d.virtual_stelemref.kind = kind;
9882 res = mono_mb_create (mb, signature, 4, info);
9883 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
9885 mono_marshal_lock ();
9886 if (!cached_methods [kind]) {
9887 cached_methods [kind] = res;
9888 mono_marshal_unlock ();
9890 mono_marshal_unlock ();
9891 mono_free_method (res);
9895 return cached_methods [kind];
9899 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
9903 g_assert (array_class->rank == 1);
9904 kind = get_virtual_stelemref_kind (array_class->element_class);
9906 return get_virtual_stelemref_wrapper (kind);
9910 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
9915 *nwrappers = STELEMREF_KIND_COUNT;
9916 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
9917 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
9918 res [i] = get_virtual_stelemref_wrapper (i);
9923 mono_marshal_get_stelemref (void)
9925 static MonoMethod* ret = NULL;
9926 MonoMethodSignature *sig;
9927 MonoMethodBuilder *mb;
9930 guint32 b1, b2, b3, b4;
9933 int array_slot_addr;
9938 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9941 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9943 /* void stelemref (void* array, int idx, void* value) */
9944 sig->ret = &mono_defaults.void_class->byval_arg;
9945 sig->params [0] = &mono_defaults.object_class->byval_arg;
9946 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9947 sig->params [2] = &mono_defaults.object_class->byval_arg;
9950 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9951 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9952 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9956 <ldelema (bound check)>
9960 aklass = array->vtable->klass->element_class;
9961 vklass = value->vtable->klass;
9963 if (vklass->idepth < aklass->idepth)
9966 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9970 *array_slot_addr = value;
9974 if (mono_object_isinst (value, aklass))
9977 throw new ArrayTypeMismatchException ();
9980 /* ldelema (implicit bound check) */
9981 mono_mb_emit_ldarg (mb, 0);
9982 mono_mb_emit_ldarg (mb, 1);
9983 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9984 mono_mb_emit_stloc (mb, array_slot_addr);
9986 /* if (!value) goto do_store */
9987 mono_mb_emit_ldarg (mb, 2);
9988 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9990 /* aklass = array->vtable->klass->element_class */
9991 mono_mb_emit_ldarg (mb, 0);
9992 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9993 mono_mb_emit_byte (mb, CEE_LDIND_I);
9994 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9995 mono_mb_emit_byte (mb, CEE_LDIND_I);
9996 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9997 mono_mb_emit_byte (mb, CEE_LDIND_I);
9998 mono_mb_emit_stloc (mb, aklass);
10000 /* vklass = value->vtable->klass */
10001 mono_mb_emit_ldarg (mb, 2);
10002 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10003 mono_mb_emit_byte (mb, CEE_LDIND_I);
10004 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10005 mono_mb_emit_byte (mb, CEE_LDIND_I);
10006 mono_mb_emit_stloc (mb, vklass);
10008 /* if (vklass->idepth < aklass->idepth) goto failue */
10009 mono_mb_emit_ldloc (mb, vklass);
10010 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10011 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10013 mono_mb_emit_ldloc (mb, aklass);
10014 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10015 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10017 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10019 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10020 mono_mb_emit_ldloc (mb, vklass);
10021 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10022 mono_mb_emit_byte (mb, CEE_LDIND_I);
10024 mono_mb_emit_ldloc (mb, aklass);
10025 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10026 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10027 mono_mb_emit_icon (mb, 1);
10028 mono_mb_emit_byte (mb, CEE_SUB);
10029 mono_mb_emit_icon (mb, sizeof (void*));
10030 mono_mb_emit_byte (mb, CEE_MUL);
10031 mono_mb_emit_byte (mb, CEE_ADD);
10032 mono_mb_emit_byte (mb, CEE_LDIND_I);
10034 mono_mb_emit_ldloc (mb, aklass);
10036 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10038 copy_pos = mono_mb_get_label (mb);
10040 mono_mb_patch_branch (mb, b1);
10041 mono_mb_emit_ldloc (mb, array_slot_addr);
10042 mono_mb_emit_ldarg (mb, 2);
10043 mono_mb_emit_byte (mb, CEE_STIND_REF);
10045 mono_mb_emit_byte (mb, CEE_RET);
10048 mono_mb_patch_branch (mb, b2);
10049 mono_mb_patch_branch (mb, b3);
10051 mono_mb_emit_ldarg (mb, 2);
10052 mono_mb_emit_ldloc (mb, aklass);
10053 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10055 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10056 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10057 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10059 mono_mb_emit_byte (mb, CEE_RET);
10061 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10062 ret = mono_mb_create (mb, sig, 4, info);
10069 * mono_marshal_get_gsharedvt_in_wrapper:
10071 * This wrapper handles calls from normal code to gsharedvt code.
10074 mono_marshal_get_gsharedvt_in_wrapper (void)
10076 static MonoMethod* ret = NULL;
10077 MonoMethodSignature *sig;
10078 MonoMethodBuilder *mb;
10084 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10086 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10087 sig->ret = &mono_defaults.void_class->byval_arg;
10089 #ifndef DISABLE_JIT
10091 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10093 mono_mb_emit_byte (mb, CEE_RET);
10095 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10096 ret = mono_mb_create (mb, sig, 4, info);
10103 * mono_marshal_get_gsharedvt_out_wrapper:
10105 * This wrapper handles calls from gsharedvt code to normal code.
10108 mono_marshal_get_gsharedvt_out_wrapper (void)
10110 static MonoMethod* ret = NULL;
10111 MonoMethodSignature *sig;
10112 MonoMethodBuilder *mb;
10118 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10120 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10121 sig->ret = &mono_defaults.void_class->byval_arg;
10123 #ifndef DISABLE_JIT
10125 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10127 mono_mb_emit_byte (mb, CEE_RET);
10129 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10130 ret = mono_mb_create (mb, sig, 4, info);
10139 MonoMethod *method;
10142 /* LOCKING: vars accessed under the marshal lock */
10143 static ArrayElemAddr *elem_addr_cache = NULL;
10144 static int elem_addr_cache_size = 0;
10145 static int elem_addr_cache_next = 0;
10148 * mono_marshal_get_array_address:
10149 * @rank: rank of the array type
10150 * @elem_size: size in bytes of an element of an array.
10152 * Returns a MonoMethod that implements the code to get the address
10153 * of an element in a multi-dimenasional array of @rank dimensions.
10154 * The returned method takes an array as the first argument and then
10155 * @rank indexes for the @rank dimensions.
10156 * If ELEM_SIZE is 0, read the array size from the array object.
10159 mono_marshal_get_array_address (int rank, int elem_size)
10162 MonoMethodBuilder *mb;
10163 MonoMethodSignature *sig;
10166 int i, bounds, ind, realidx;
10167 int branch_pos, *branch_positions;
10171 mono_marshal_lock ();
10172 for (i = 0; i < elem_addr_cache_next; ++i) {
10173 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10174 ret = elem_addr_cache [i].method;
10178 mono_marshal_unlock ();
10182 branch_positions = g_new0 (int, rank);
10184 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10186 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10187 sig->ret = &mono_defaults.int_class->byval_arg;
10188 sig->params [0] = &mono_defaults.object_class->byval_arg;
10189 for (i = 0; i < rank; ++i) {
10190 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10193 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10194 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10197 #ifndef DISABLE_JIT
10198 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10199 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10200 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10202 /* bounds = array->bounds; */
10203 mono_mb_emit_ldarg (mb, 0);
10204 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10205 mono_mb_emit_byte (mb, CEE_LDIND_I);
10206 mono_mb_emit_stloc (mb, bounds);
10208 /* ind is the overall element index, realidx is the partial index in a single dimension */
10209 /* ind = idx0 - bounds [0].lower_bound */
10210 mono_mb_emit_ldarg (mb, 1);
10211 mono_mb_emit_ldloc (mb, bounds);
10212 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10213 mono_mb_emit_byte (mb, CEE_ADD);
10214 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10215 mono_mb_emit_byte (mb, CEE_SUB);
10216 mono_mb_emit_stloc (mb, ind);
10217 /* if (ind >= bounds [0].length) goto exeception; */
10218 mono_mb_emit_ldloc (mb, ind);
10219 mono_mb_emit_ldloc (mb, bounds);
10220 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10221 mono_mb_emit_byte (mb, CEE_ADD);
10222 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10223 /* note that we use unsigned comparison */
10224 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10226 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10227 * We could also decide to ignore the passed elem_size and get it
10228 * from the array object, to reduce the number of methods we generate:
10229 * the additional cost is 3 memory loads and a non-immediate mul.
10231 for (i = 1; i < rank; ++i) {
10232 /* realidx = idxi - bounds [i].lower_bound */
10233 mono_mb_emit_ldarg (mb, 1 + i);
10234 mono_mb_emit_ldloc (mb, bounds);
10235 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10236 mono_mb_emit_byte (mb, CEE_ADD);
10237 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10238 mono_mb_emit_byte (mb, CEE_SUB);
10239 mono_mb_emit_stloc (mb, realidx);
10240 /* if (realidx >= bounds [i].length) goto exeception; */
10241 mono_mb_emit_ldloc (mb, realidx);
10242 mono_mb_emit_ldloc (mb, bounds);
10243 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10244 mono_mb_emit_byte (mb, CEE_ADD);
10245 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10246 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10247 /* ind = ind * bounds [i].length + realidx */
10248 mono_mb_emit_ldloc (mb, ind);
10249 mono_mb_emit_ldloc (mb, bounds);
10250 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10251 mono_mb_emit_byte (mb, CEE_ADD);
10252 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10253 mono_mb_emit_byte (mb, CEE_MUL);
10254 mono_mb_emit_ldloc (mb, realidx);
10255 mono_mb_emit_byte (mb, CEE_ADD);
10256 mono_mb_emit_stloc (mb, ind);
10259 /* return array->vector + ind * element_size */
10260 mono_mb_emit_ldarg (mb, 0);
10261 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10262 mono_mb_emit_ldloc (mb, ind);
10264 mono_mb_emit_icon (mb, elem_size);
10266 /* Load arr->vtable->klass->sizes.element_class */
10267 mono_mb_emit_ldarg (mb, 0);
10268 mono_mb_emit_byte (mb, CEE_CONV_I);
10269 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10270 mono_mb_emit_byte (mb, CEE_ADD);
10271 mono_mb_emit_byte (mb, CEE_LDIND_I);
10272 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10273 mono_mb_emit_byte (mb, CEE_ADD);
10274 mono_mb_emit_byte (mb, CEE_LDIND_I);
10275 /* sizes is an union, so this reads sizes.element_size */
10276 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10277 mono_mb_emit_byte (mb, CEE_ADD);
10278 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10280 mono_mb_emit_byte (mb, CEE_MUL);
10281 mono_mb_emit_byte (mb, CEE_ADD);
10282 mono_mb_emit_byte (mb, CEE_RET);
10284 /* patch the branches to get here and throw */
10285 for (i = 1; i < rank; ++i) {
10286 mono_mb_patch_branch (mb, branch_positions [i]);
10288 mono_mb_patch_branch (mb, branch_pos);
10289 /* throw exception */
10290 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10292 g_free (branch_positions);
10293 #endif /* DISABLE_JIT */
10295 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10296 info->d.element_addr.rank = rank;
10297 info->d.element_addr.elem_size = elem_size;
10298 ret = mono_mb_create (mb, sig, 4, info);
10301 /* cache the result */
10303 mono_marshal_lock ();
10304 for (i = 0; i < elem_addr_cache_next; ++i) {
10305 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10306 /* FIXME: free ret */
10307 ret = elem_addr_cache [i].method;
10313 if (elem_addr_cache_next >= elem_addr_cache_size) {
10314 int new_size = elem_addr_cache_size + 4;
10315 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10316 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10317 g_free (elem_addr_cache);
10318 elem_addr_cache = new_array;
10319 elem_addr_cache_size = new_size;
10321 elem_addr_cache [elem_addr_cache_next].rank = rank;
10322 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10323 elem_addr_cache [elem_addr_cache_next].method = ret;
10324 elem_addr_cache_next ++;
10326 mono_marshal_unlock ();
10331 * mono_marshal_get_array_accessor_wrapper:
10333 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10336 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10338 MonoMethodSignature *sig;
10339 MonoMethodBuilder *mb;
10343 MonoGenericContext *ctx = NULL;
10344 MonoMethod *orig_method = NULL;
10345 MonoGenericContainer *container = NULL;
10349 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10350 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10351 * FIXME: Use generic methods.
10358 g_assert_not_reached ();
10360 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10361 if ((res = mono_marshal_find_in_cache (cache, method)))
10365 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10368 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10370 #ifndef DISABLE_JIT
10371 /* Call the method */
10373 mono_mb_emit_ldarg (mb, 0);
10374 for (i = 0; i < sig->param_count; i++)
10375 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10379 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10380 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10382 mono_mb_emit_managed_call (mb, method, NULL);
10384 mono_mb_emit_byte (mb, CEE_RET);
10387 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10388 info->d.array_accessor.method = method;
10392 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10393 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10395 res = mono_mb_create_and_cache_full (cache, method,
10396 mb, sig, sig->param_count + 16,
10405 mono_marshal_alloc (gulong size, MonoError *error)
10409 mono_error_init (error);
10412 res = CoTaskMemAlloc (size);
10414 res = g_try_malloc ((gulong)size);
10416 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
10421 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10423 ves_icall_marshal_alloc (gulong size)
10426 void *ret = mono_marshal_alloc (size, &error);
10427 if (!mono_error_ok (&error)) {
10428 mono_error_set_pending_exception (&error);
10436 mono_marshal_free (gpointer ptr)
10439 CoTaskMemFree (ptr);
10446 mono_marshal_free_array (gpointer *ptr, int size)
10453 for (i = 0; i < size; i++)
10459 mono_marshal_string_to_utf16 (MonoString *s)
10461 return s ? mono_string_chars (s) : NULL;
10464 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10466 mono_marshal_string_to_utf16_copy (MonoString *s)
10472 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10473 if (!mono_error_ok (&error)) {
10474 mono_error_set_pending_exception (&error);
10477 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10478 res [mono_string_length (s)] = 0;
10484 * mono_marshal_set_last_error:
10486 * This function is invoked to set the last error value from a P/Invoke call
10487 * which has SetLastError set.
10490 mono_marshal_set_last_error (void)
10493 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10495 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10500 mono_marshal_set_last_error_windows (int error)
10503 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10508 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10509 gpointer dest, gint32 length)
10514 MONO_CHECK_ARG_NULL (src,);
10515 MONO_CHECK_ARG_NULL (dest,);
10517 if (src->obj.vtable->klass->rank != 1) {
10518 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10521 if (start_index < 0) {
10522 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10526 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10529 if (start_index + length > mono_array_length (src)) {
10530 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10534 element_size = mono_array_element_size (src->obj.vtable->klass);
10536 /* no references should be involved */
10537 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10539 memcpy (dest, source_addr, length * element_size);
10543 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10544 MonoArray *dest, gint32 length)
10549 MONO_CHECK_ARG_NULL (src,);
10550 MONO_CHECK_ARG_NULL (dest,);
10552 if (dest->obj.vtable->klass->rank != 1) {
10553 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10556 if (start_index < 0) {
10557 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10561 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10564 if (start_index + length > mono_array_length (dest)) {
10565 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10568 element_size = mono_array_element_size (dest->obj.vtable->klass);
10570 /* no references should be involved */
10571 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10573 memcpy (dest_addr, src, length * element_size);
10577 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10582 return mono_string_new (mono_domain_get (), ptr);
10586 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10589 MonoString *result = NULL;
10590 mono_error_init (&error);
10592 mono_error_set_argument_null (&error, "ptr", "");
10594 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10595 mono_error_set_pending_exception (&error);
10600 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10603 MonoString *res = NULL;
10604 MonoDomain *domain = mono_domain_get ();
10614 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10615 if (!mono_error_ok (&error)) {
10616 mono_error_set_pending_exception (&error);
10623 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10626 MonoString *res = NULL;
10627 MonoDomain *domain = mono_domain_get ();
10629 mono_error_init (&error);
10633 mono_error_set_argument_null (&error, "ptr", "");
10635 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10638 if (!mono_error_ok (&error))
10639 mono_error_set_pending_exception (&error);
10644 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10646 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10650 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10656 MONO_CHECK_ARG_NULL (rtype, 0);
10658 type = rtype->type;
10659 klass = mono_class_from_mono_type (type);
10660 if (!mono_class_init (klass)) {
10661 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10665 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10667 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10668 return sizeof (gpointer);
10669 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10671 MonoException *exc;
10673 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10674 exc = mono_get_exception_argument ("t", msg);
10676 mono_set_pending_exception (exc);
10680 return mono_class_native_size (klass, NULL);
10684 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10687 MonoMethod *method;
10690 MONO_CHECK_ARG_NULL (obj,);
10691 MONO_CHECK_ARG_NULL (dst,);
10693 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10697 pa [2] = &delete_old;
10699 mono_runtime_invoke_checked (method, NULL, pa, &error);
10700 if (!mono_error_ok (&error))
10701 mono_error_set_pending_exception (&error);
10705 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10707 MonoMethod *method;
10710 mono_error_init (error);
10712 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10717 mono_runtime_invoke_checked (method, NULL, pa, error);
10721 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10726 MONO_CHECK_ARG_NULL (src,);
10727 MONO_CHECK_ARG_NULL (dst,);
10729 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10731 if (t->type == MONO_TYPE_VALUETYPE) {
10732 MonoException *exc;
10735 tmp = g_strdup_printf ("Destination is a boxed value type.");
10736 exc = mono_get_exception_argument ("dst", tmp);
10739 mono_set_pending_exception (exc);
10743 ptr_to_structure (src, dst, &error);
10744 if (!mono_error_ok (&error))
10745 mono_error_set_pending_exception (&error);
10749 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10753 MonoDomain *domain = mono_domain_get ();
10758 MONO_CHECK_ARG_NULL (type, NULL);
10760 klass = mono_class_from_mono_type (type->type);
10761 if (!mono_class_init (klass)) {
10762 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10766 res = mono_object_new_checked (domain, klass, &error);
10767 if (!mono_error_ok (&error)) {
10768 mono_error_set_pending_exception (&error);
10772 ptr_to_structure (src, res, &error);
10773 if (!mono_error_ok (&error)) {
10774 mono_error_set_pending_exception (&error);
10782 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10785 MonoMarshalType *info;
10788 int match_index = -1;
10790 MONO_CHECK_ARG_NULL (type, 0);
10791 MONO_CHECK_ARG_NULL (field_name, 0);
10793 fname = mono_string_to_utf8_checked (field_name, &error);
10794 if (mono_error_set_pending_exception (&error))
10796 klass = mono_class_from_mono_type (type->type);
10797 if (!mono_class_init (klass)) {
10798 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10802 while (klass && match_index == -1) {
10803 MonoClassField* field;
10805 gpointer iter = NULL;
10806 while ((field = mono_class_get_fields (klass, &iter))) {
10807 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10809 if (!strcmp (fname, mono_field_get_name (field))) {
10816 if (match_index == -1)
10817 klass = klass->parent;
10822 if(match_index == -1) {
10823 MonoException* exc;
10826 /* Get back original class instance */
10827 klass = mono_class_from_mono_type (type->type);
10829 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10830 exc = mono_get_exception_argument ("fieldName", tmp);
10833 mono_set_pending_exception ((MonoException*)exc);
10837 info = mono_marshal_load_type_info (klass);
10838 return info->fields [match_index].offset;
10842 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10848 tres = mono_string_to_utf8_checked (string, &error);
10849 if (mono_error_set_pending_exception (&error))
10854 len = strlen (tres) + 1;
10855 ret = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (len);
10856 memcpy (ret, tres, len);
10861 char *ret = mono_string_to_utf8_checked (string, &error);
10862 mono_error_set_pending_exception (&error);
10868 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10870 if (string == NULL)
10873 #ifdef TARGET_WIN32
10874 gunichar2 *res = ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal
10875 ((mono_string_length (string) + 1) * 2);
10877 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
10879 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10880 res [mono_string_length (string)] = 0;
10886 mono_struct_delete_old (MonoClass *klass, char *ptr)
10888 MonoMarshalType *info;
10891 info = mono_marshal_load_type_info (klass);
10893 for (i = 0; i < info->num_fields; i++) {
10894 MonoMarshalConv conv;
10895 MonoType *ftype = info->fields [i].field->type;
10898 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10901 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10902 klass->unicode, &conv);
10904 cpos = ptr + info->fields [i].offset;
10907 case MONO_MARSHAL_CONV_NONE:
10908 if (MONO_TYPE_ISSTRUCT (ftype)) {
10909 mono_struct_delete_old (ftype->data.klass, cpos);
10913 case MONO_MARSHAL_CONV_STR_LPWSTR:
10914 /* We assume this field points inside a MonoString */
10916 case MONO_MARSHAL_CONV_STR_LPTSTR:
10917 #ifdef TARGET_WIN32
10918 /* We assume this field points inside a MonoString
10922 case MONO_MARSHAL_CONV_STR_LPSTR:
10923 case MONO_MARSHAL_CONV_STR_BSTR:
10924 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10925 case MONO_MARSHAL_CONV_STR_TBSTR:
10926 mono_marshal_free (*(gpointer *)cpos);
10936 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10940 MONO_CHECK_ARG_NULL (src,);
10941 MONO_CHECK_ARG_NULL (type,);
10943 klass = mono_class_from_mono_type (type->type);
10944 if (!mono_class_init (klass)) {
10945 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10949 mono_struct_delete_old (klass, (char *)src);
10953 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
10956 size_t s = (size_t)size;
10959 /* This returns a valid pointer for size 0 on MS.NET */
10963 res = GlobalAlloc (GMEM_FIXED, s);
10965 res = g_try_malloc (s);
10968 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10976 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
10979 size_t s = (size_t)size;
10982 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
10987 res = GlobalReAlloc (ptr, s, GMEM_MOVEABLE);
10989 res = g_try_realloc (ptr, s);
10992 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11000 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11010 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11015 res = CoTaskMemAlloc (size);
11017 if ((gulong)size == 0)
11018 /* This returns a valid pointer for size 0 on MS.NET */
11021 res = g_try_malloc ((gulong)size);
11024 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11031 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11034 CoTaskMemFree (ptr);
11041 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11046 res = CoTaskMemRealloc (ptr, size);
11048 res = g_try_realloc (ptr, (gulong)size);
11051 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11058 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11060 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11064 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11066 MonoClass *klass = mono_type_get_class (type->type);
11067 if (!mono_class_init (klass)) {
11068 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11072 return mono_ftnptr_to_delegate (klass, ftn);
11076 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11078 return mono_delegate_to_ftnptr (delegate);
11082 * mono_marshal_is_loading_type_info:
11084 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11088 mono_marshal_is_loading_type_info (MonoClass *klass)
11090 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11092 return g_slist_find (loads_list, klass) != NULL;
11096 * mono_marshal_load_type_info:
11098 * Initialize klass->marshal_info using information from metadata. This function can
11099 * recursively call itself, and the caller is responsible to avoid that by calling
11100 * mono_marshal_is_loading_type_info () beforehand.
11102 * LOCKING: Acquires the loader lock.
11105 mono_marshal_load_type_info (MonoClass* klass)
11108 guint32 native_size = 0, min_align = 1, packing;
11109 MonoMarshalType *info;
11110 MonoClassField* field;
11113 GSList *loads_list;
11115 g_assert (klass != NULL);
11117 if (klass->marshal_info)
11118 return klass->marshal_info;
11120 if (!klass->inited)
11121 mono_class_init (klass);
11123 if (klass->marshal_info)
11124 return klass->marshal_info;
11127 * This function can recursively call itself, so we keep the list of classes which are
11128 * under initialization in a TLS list.
11130 g_assert (!mono_marshal_is_loading_type_info (klass));
11131 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11132 loads_list = g_slist_prepend (loads_list, klass);
11133 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11136 while ((field = mono_class_get_fields (klass, &iter))) {
11137 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11139 if (mono_field_is_deleted (field))
11144 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
11146 /* The mempool is protected by the loader lock */
11147 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11148 info->num_fields = count;
11150 /* Try to find a size for this type in metadata */
11151 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11153 if (klass->parent) {
11154 int parent_size = mono_class_native_size (klass->parent, NULL);
11156 /* Add parent size to real size */
11157 native_size += parent_size;
11158 info->native_size = parent_size;
11161 packing = klass->packing_size ? klass->packing_size : 8;
11164 while ((field = mono_class_get_fields (klass, &iter))) {
11168 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11171 if (mono_field_is_deleted (field))
11173 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11174 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11175 NULL, NULL, &info->fields [j].mspec);
11177 info->fields [j].field = field;
11179 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11180 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11181 /* This field is a hack inserted by MCS to empty structures */
11186 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11187 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11188 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11189 &align, TRUE, klass->unicode);
11190 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11191 min_align = MAX (align, min_align);
11192 info->fields [j].offset = info->native_size;
11193 info->fields [j].offset += align - 1;
11194 info->fields [j].offset &= ~(align - 1);
11195 info->native_size = info->fields [j].offset + size;
11197 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11198 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11199 &align, TRUE, klass->unicode);
11200 min_align = MAX (align, min_align);
11201 info->fields [j].offset = field->offset - sizeof (MonoObject);
11202 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11208 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11209 info->native_size = MAX (native_size, info->native_size);
11211 * If the provided Size is equal or larger than the calculated size, and there
11212 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11214 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11215 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11218 min_align = MIN (min_align, packing);
11222 if (info->native_size & (min_align - 1)) {
11223 info->native_size += min_align - 1;
11224 info->native_size &= ~(min_align - 1);
11227 info->min_align = min_align;
11229 /* Update the class's blittable info, if the layouts don't match */
11230 if (info->native_size != mono_class_value_size (klass, NULL))
11231 klass->blittable = FALSE;
11233 /* If this is an array type, ensure that we have element info */
11234 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11235 mono_marshal_load_type_info (klass->element_class);
11238 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11239 loads_list = g_slist_remove (loads_list, klass);
11240 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11242 mono_marshal_lock ();
11243 if (!klass->marshal_info) {
11244 /*We do double-checking locking on marshal_info */
11245 mono_memory_barrier ();
11246 klass->marshal_info = info;
11248 mono_marshal_unlock ();
11250 return klass->marshal_info;
11254 * mono_class_native_size:
11257 * Returns: the native size of an object instance (when marshaled
11258 * to unmanaged code)
11261 mono_class_native_size (MonoClass *klass, guint32 *align)
11263 if (!klass->marshal_info) {
11264 if (mono_marshal_is_loading_type_info (klass)) {
11269 mono_marshal_load_type_info (klass);
11274 *align = klass->marshal_info->min_align;
11276 return klass->marshal_info->native_size;
11280 * mono_type_native_stack_size:
11281 * @t: the type to return the size it uses on the stack
11283 * Returns: the number of bytes required to hold an instance of this
11284 * type on the native stack
11287 mono_type_native_stack_size (MonoType *t, guint32 *align)
11291 g_assert (t != NULL);
11297 *align = sizeof (gpointer);
11298 return sizeof (gpointer);
11302 case MONO_TYPE_BOOLEAN:
11303 case MONO_TYPE_CHAR:
11314 case MONO_TYPE_STRING:
11315 case MONO_TYPE_OBJECT:
11316 case MONO_TYPE_CLASS:
11317 case MONO_TYPE_SZARRAY:
11318 case MONO_TYPE_PTR:
11319 case MONO_TYPE_FNPTR:
11320 case MONO_TYPE_ARRAY:
11321 *align = sizeof (gpointer);
11322 return sizeof (gpointer);
11327 *align = MONO_ABI_ALIGNOF (double);
11331 *align = MONO_ABI_ALIGNOF (gint64);
11333 case MONO_TYPE_GENERICINST:
11334 if (!mono_type_generic_inst_is_valuetype (t)) {
11335 *align = sizeof (gpointer);
11336 return sizeof (gpointer);
11339 case MONO_TYPE_TYPEDBYREF:
11340 case MONO_TYPE_VALUETYPE: {
11342 MonoClass *klass = mono_class_from_mono_type (t);
11344 if (klass->enumtype)
11345 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11347 size = mono_class_native_size (klass, align);
11348 *align = *align + 3;
11358 g_error ("type 0x%02x unknown", t->type);
11364 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11365 gboolean as_field, gboolean unicode)
11367 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11370 switch (native_type) {
11371 case MONO_NATIVE_BOOLEAN:
11374 case MONO_NATIVE_I1:
11375 case MONO_NATIVE_U1:
11378 case MONO_NATIVE_I2:
11379 case MONO_NATIVE_U2:
11380 case MONO_NATIVE_VARIANTBOOL:
11383 case MONO_NATIVE_I4:
11384 case MONO_NATIVE_U4:
11385 case MONO_NATIVE_ERROR:
11388 case MONO_NATIVE_I8:
11389 case MONO_NATIVE_U8:
11390 *align = MONO_ABI_ALIGNOF (gint64);
11392 case MONO_NATIVE_R4:
11395 case MONO_NATIVE_R8:
11396 *align = MONO_ABI_ALIGNOF (double);
11398 case MONO_NATIVE_INT:
11399 case MONO_NATIVE_UINT:
11400 case MONO_NATIVE_LPSTR:
11401 case MONO_NATIVE_LPWSTR:
11402 case MONO_NATIVE_LPTSTR:
11403 case MONO_NATIVE_BSTR:
11404 case MONO_NATIVE_ANSIBSTR:
11405 case MONO_NATIVE_TBSTR:
11406 case MONO_NATIVE_LPARRAY:
11407 case MONO_NATIVE_SAFEARRAY:
11408 case MONO_NATIVE_IUNKNOWN:
11409 case MONO_NATIVE_IDISPATCH:
11410 case MONO_NATIVE_INTERFACE:
11411 case MONO_NATIVE_ASANY:
11412 case MONO_NATIVE_FUNC:
11413 case MONO_NATIVE_LPSTRUCT:
11414 *align = MONO_ABI_ALIGNOF (gpointer);
11415 return sizeof (gpointer);
11416 case MONO_NATIVE_STRUCT:
11417 klass = mono_class_from_mono_type (type);
11418 if (klass == mono_defaults.object_class &&
11419 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11423 return mono_class_native_size (klass, align);
11424 case MONO_NATIVE_BYVALTSTR: {
11425 int esize = unicode ? 2: 1;
11428 return mspec->data.array_data.num_elem * esize;
11430 case MONO_NATIVE_BYVALARRAY: {
11431 // FIXME: Have to consider ArraySubType
11433 klass = mono_class_from_mono_type (type);
11434 if (klass->element_class == mono_defaults.char_class) {
11435 esize = unicode ? 2 : 1;
11438 esize = mono_class_native_size (klass->element_class, align);
11441 return mspec->data.array_data.num_elem * esize;
11443 case MONO_NATIVE_CUSTOM:
11444 *align = sizeof (gpointer);
11445 return sizeof (gpointer);
11447 case MONO_NATIVE_CURRENCY:
11448 case MONO_NATIVE_VBBYREFSTR:
11450 g_error ("native type %02x not implemented", native_type);
11453 g_assert_not_reached ();
11457 /* This is a JIT icall, it sets the pending exception and return NULL on error */
11459 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11468 t = &o->vtable->klass->byval_arg;
11472 case MONO_TYPE_PTR:
11475 case MONO_TYPE_BOOLEAN:
11478 case MONO_TYPE_CHAR:
11483 return mono_object_unbox (o);
11485 case MONO_TYPE_STRING:
11486 switch (string_encoding) {
11487 case MONO_NATIVE_LPWSTR:
11488 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11490 case MONO_NATIVE_LPSTR:
11491 return mono_string_to_lpstr ((MonoString*)o);
11494 g_warning ("marshaling conversion %d not implemented", string_encoding);
11495 g_assert_not_reached ();
11498 case MONO_TYPE_CLASS:
11499 case MONO_TYPE_VALUETYPE: {
11500 MonoMethod *method;
11503 MonoBoolean delete_old = FALSE;
11505 klass = t->data.klass;
11507 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
11510 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11511 klass->blittable || klass->enumtype))
11512 return mono_object_unbox (o);
11514 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11515 if (!mono_error_ok (&error)) {
11516 mono_error_set_pending_exception (&error);
11520 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11521 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11525 pa [2] = &delete_old;
11527 mono_runtime_invoke_checked (method, NULL, pa, &error);
11528 if (!mono_error_ok (&error)) {
11529 mono_error_set_pending_exception (&error);
11539 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11543 /* This is a JIT icall, it sets the pending exception */
11545 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11554 t = &o->vtable->klass->byval_arg;
11556 case MONO_TYPE_STRING:
11557 switch (string_encoding) {
11558 case MONO_NATIVE_LPWSTR:
11559 case MONO_NATIVE_LPSTR:
11560 mono_marshal_free (ptr);
11563 g_warning ("marshaling conversion %d not implemented", string_encoding);
11564 g_assert_not_reached ();
11567 case MONO_TYPE_CLASS:
11568 case MONO_TYPE_VALUETYPE: {
11569 klass = t->data.klass;
11571 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11572 klass->blittable || klass->enumtype))
11575 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11576 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11582 mono_runtime_invoke_checked (method, NULL, pa, &error);
11583 if (!mono_error_ok (&error)) {
11584 mono_error_set_pending_exception (&error);
11589 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11590 mono_struct_delete_old (klass, (char *)ptr);
11593 mono_marshal_free (ptr);
11602 mono_marshal_get_generic_array_helper (MonoClass *klass, MonoClass *iface, gchar *name, MonoMethod *method)
11604 MonoMethodSignature *sig, *csig;
11605 MonoMethodBuilder *mb;
11610 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11611 mb->method->slot = -1;
11613 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11614 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11616 sig = mono_method_signature (method);
11617 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11618 csig->generic_param_count = 0;
11620 #ifndef DISABLE_JIT
11621 mono_mb_emit_ldarg (mb, 0);
11622 for (i = 0; i < csig->param_count; i++)
11623 mono_mb_emit_ldarg (mb, i + 1);
11624 mono_mb_emit_managed_call (mb, method, NULL);
11625 mono_mb_emit_byte (mb, CEE_RET);
11627 /* We can corlib internal methods */
11628 mb->skip_visibility = TRUE;
11630 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11631 info->d.generic_array_helper.method = method;
11632 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11640 * The mono_win32_compat_* functions are implementations of inline
11641 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11642 * although not exported by kernel32.
11644 * We map the appropiate kernel32 entries to these functions using
11645 * dllmaps declared in the global etc/mono/config.
11649 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11651 if (!dest || !source)
11654 memcpy (dest, source, length);
11658 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11660 memset (dest, fill, length);
11664 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11666 if (!dest || !source)
11669 memmove (dest, source, length);
11673 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11675 memset (dest, 0, length);
11679 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11684 for (i = 0; i < len; ++i)
11688 g_assert (i < len);
11691 while (byte && !(byte & 1))
11693 g_assert (byte == 1);
11696 *bitmask = buf [i];
11700 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11702 MonoMethodBuilder *mb;
11703 MonoMethodSignature *sig, *csig;
11704 MonoExceptionClause *clause;
11709 int i, param_count, sig_size, pos_leave;
11713 // FIXME: we need to store the exception into a MonoHandle
11714 g_assert (!mono_threads_is_coop_enabled ());
11716 klass = method->klass;
11717 image = method->klass->image;
11719 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
11721 if ((res = mono_marshal_find_in_cache (cache, method)))
11724 sig = mono_method_signature (method);
11725 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11727 /* add "this" and exception param */
11728 param_count = sig->param_count + sig->hasthis + 1;
11730 /* dup & extend signature */
11731 csig = mono_metadata_signature_alloc (image, param_count);
11732 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
11733 memcpy (csig, sig, sig_size);
11734 csig->param_count = param_count;
11737 csig->call_convention = MONO_CALL_DEFAULT;
11739 if (sig->hasthis) {
11741 csig->params [0] = &klass->byval_arg;
11742 /* move params up by one */
11743 for (i = 0; i < sig->param_count; i++)
11744 csig->params [i + 1] = sig->params [i];
11747 /* setup exception param as byref+[out] */
11748 csig->params [param_count - 1] = mono_metadata_type_dup (image,
11749 &mono_defaults.exception_class->byval_arg);
11750 csig->params [param_count - 1]->byref = 1;
11751 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
11753 /* convert struct return to object */
11754 if (MONO_TYPE_ISSTRUCT (sig->ret))
11755 csig->ret = &mono_defaults.object_class->byval_arg;
11757 #ifndef DISABLE_JIT
11758 /* local 0 (temp for exception object) */
11759 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
11761 /* local 1 (temp for result) */
11762 if (!MONO_TYPE_IS_VOID (sig->ret))
11763 mono_mb_add_local (mb, sig->ret);
11765 /* clear exception arg */
11766 mono_mb_emit_ldarg (mb, param_count - 1);
11767 mono_mb_emit_byte (mb, CEE_LDNULL);
11768 mono_mb_emit_byte (mb, CEE_STIND_REF);
11771 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
11772 clause->try_offset = mono_mb_get_label (mb);
11774 /* push method's args */
11775 for (i = 0; i < param_count - 1; i++) {
11779 mono_mb_emit_ldarg (mb, i);
11781 /* get the byval type of the param */
11782 klass = mono_class_from_mono_type (csig->params [i]);
11783 type = &klass->byval_arg;
11785 /* unbox struct args */
11786 if (MONO_TYPE_ISSTRUCT (type)) {
11787 mono_mb_emit_op (mb, CEE_UNBOX, klass);
11789 /* byref args & and the "this" arg must remain a ptr.
11790 Otherwise make a copy of the value type */
11791 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
11792 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
11794 csig->params [i] = &mono_defaults.object_class->byval_arg;
11799 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
11800 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
11802 mono_mb_emit_op (mb, CEE_CALL, method);
11804 /* save result at local 1 */
11805 if (!MONO_TYPE_IS_VOID (sig->ret))
11806 mono_mb_emit_stloc (mb, 1);
11808 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11811 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11812 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
11813 clause->data.catch_class = mono_defaults.object_class;
11815 clause->handler_offset = mono_mb_get_label (mb);
11817 /* store exception at local 0 */
11818 mono_mb_emit_stloc (mb, 0);
11819 mono_mb_emit_ldarg (mb, param_count - 1);
11820 mono_mb_emit_ldloc (mb, 0);
11821 mono_mb_emit_byte (mb, CEE_STIND_REF);
11822 mono_mb_emit_branch (mb, CEE_LEAVE);
11824 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
11826 mono_mb_set_clauses (mb, 1, clause);
11828 mono_mb_patch_branch (mb, pos_leave);
11831 if (!MONO_TYPE_IS_VOID (sig->ret)) {
11832 mono_mb_emit_ldloc (mb, 1);
11834 /* box the return value */
11835 if (MONO_TYPE_ISSTRUCT (sig->ret))
11836 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
11839 mono_mb_emit_byte (mb, CEE_RET);
11842 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
11849 * mono_marshal_free_dynamic_wrappers:
11851 * Free wrappers of the dynamic method METHOD.
11854 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
11856 MonoImage *image = method->klass->image;
11858 g_assert (method_is_dynamic (method));
11860 /* This could be called during shutdown */
11861 if (marshal_mutex_initialized)
11862 mono_marshal_lock ();
11864 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
11865 * they could be shared with other methods ?
11867 if (image->wrapper_caches.runtime_invoke_direct_cache)
11868 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
11869 if (image->wrapper_caches.delegate_abstract_invoke_cache)
11870 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
11871 // FIXME: Need to clear the caches in other images as well
11872 if (image->delegate_bound_static_invoke_cache)
11873 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
11875 if (marshal_mutex_initialized)
11876 mono_marshal_unlock ();
11880 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
11882 g_assert (ftnptr_eh_callback);
11883 ftnptr_eh_callback (gchandle);
11887 ftnptr_eh_callback_default (guint32 gchandle)
11889 MonoException *exc;
11890 gpointer stackdata;
11892 g_assert (gchandle >= 0);
11894 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
11896 exc = (MonoException*) mono_gchandle_get_target (gchandle);
11898 mono_gchandle_free (gchandle);
11900 mono_raise_exception (exc);
11904 * mono_install_ftnptr_eh_callback:
11906 * Install a callback that should be called when there is a managed exception
11907 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
11908 * managed exception to a native exception, to properly unwind the native
11909 * stack; this native exception will then be converted back to a managed
11910 * exception in their managed-to-native wrapper.
11913 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
11915 ftnptr_eh_callback = callback;