3 * Routines for marshaling complex types in P/Invoke methods.
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
10 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
12 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
23 #include "metadata/marshal.h"
24 #include "metadata/marshal-internals.h"
25 #include "metadata/method-builder.h"
26 #include "metadata/tabledefs.h"
27 #include "metadata/exception.h"
28 #include "metadata/appdomain.h"
29 #include "mono/metadata/abi-details.h"
30 #include "mono/metadata/debug-helpers.h"
31 #include "mono/metadata/threads.h"
32 #include "mono/metadata/monitor.h"
33 #include "mono/metadata/class-internals.h"
34 #include "mono/metadata/metadata-internals.h"
35 #include "mono/metadata/domain-internals.h"
36 #include "mono/metadata/gc-internals.h"
37 #include "mono/metadata/threads-types.h"
38 #include "mono/metadata/string-icalls.h"
39 #include "mono/metadata/attrdefs.h"
40 #include "mono/metadata/cominterop.h"
41 #include "mono/metadata/remoting.h"
42 #include "mono/metadata/reflection-internals.h"
43 #include "mono/metadata/threadpool.h"
44 #include "mono/metadata/handle.h"
45 #include "mono/utils/mono-counters.h"
46 #include "mono/utils/mono-tls.h"
47 #include "mono/utils/mono-memory-model.h"
48 #include "mono/utils/atomic.h"
49 #include <mono/utils/mono-threads.h>
50 #include <mono/utils/mono-threads-coop.h>
51 #include <mono/utils/mono-error-internals.h>
56 /* #define DEBUG_RUNTIME_CODE */
58 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
62 #include "mono/cil/opcode.def"
68 * This mutex protects the various marshalling related caches in MonoImage
69 * and a few other data structures static to this file.
71 * The marshal lock is a non-recursive complex lock that sits below the domain lock in the
72 * runtime locking latice. Which means it can take simple locks suck as the image lock.
74 #define mono_marshal_lock() mono_locks_os_acquire (&marshal_mutex, MarshalLock)
75 #define mono_marshal_unlock() mono_locks_os_release (&marshal_mutex, MarshalLock)
76 static mono_mutex_t marshal_mutex;
77 static gboolean marshal_mutex_initialized;
79 static MonoNativeTlsKey last_error_tls_id;
81 static MonoNativeTlsKey load_type_info_tls_id;
83 static gboolean use_aot_wrappers;
85 static int class_marshal_info_count;
87 static void ftnptr_eh_callback_default (guint32 gchandle);
89 static MonoFtnPtrEHCallback ftnptr_eh_callback = ftnptr_eh_callback_default;
92 delegate_hash_table_add (MonoDelegate *d);
95 delegate_hash_table_remove (MonoDelegate *d);
98 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
101 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object, int offset_of_first_child_field, MonoMarshalNative string_encoding);
104 mono_struct_delete_old (MonoClass *klass, char *ptr);
107 mono_marshal_string_to_utf16 (MonoString *s);
110 mono_marshal_string_to_utf16_copy (MonoString *s);
114 mono_string_to_utf8str (MonoString *string_obj);
117 static MonoStringBuilder *
118 mono_string_utf8_to_builder2 (char *text);
120 static MonoStringBuilder *
121 mono_string_utf16_to_builder2 (gunichar2 *text);
124 mono_string_new_len_wrapper (const char *text, guint length);
127 mono_string_from_byvalstr (const char *data, int len);
130 mono_string_from_byvalwstr (gunichar2 *data, int len);
133 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
136 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum);
139 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
142 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum);
144 static MonoAsyncResult *
145 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
148 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
151 mono_marshal_set_last_error_windows (int error);
154 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache);
156 static void init_safe_handle (void);
159 ves_icall_marshal_alloc (gsize size);
162 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text);
165 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text);
168 mono_string_builder_to_utf8 (MonoStringBuilder *sb);
171 mono_string_builder_to_utf16 (MonoStringBuilder *sb);
174 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size);
177 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size);
180 mono_delegate_to_ftnptr (MonoDelegate *delegate);
183 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
186 mono_array_to_savearray (MonoArray *array);
189 mono_array_to_lparray (MonoArray *array);
192 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
195 mono_marshal_asany (MonoObject *obj, MonoMarshalNative string_encoding, int param_attrs);
198 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs);
201 mono_array_to_savearray (MonoArray *array);
204 mono_array_to_lparray (MonoArray *array);
207 mono_free_lparray (MonoArray *array, gpointer* nativeArray);
210 mono_marshal_ftnptr_eh_callback (guint32 gchandle);
212 static MonoThreadInfo*
213 mono_icall_start (HandleStackMark *stackmark, MonoError *error);
216 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error);
218 /* Lazy class loading functions */
219 static GENERATE_GET_CLASS_WITH_CACHE (string_builder, "System.Text", "StringBuilder");
220 static GENERATE_GET_CLASS_WITH_CACHE (date_time, "System", "DateTime");
221 static GENERATE_GET_CLASS_WITH_CACHE (fixed_buffer_attribute, "System.Runtime.CompilerServices", "FixedBufferAttribute");
222 static GENERATE_TRY_GET_CLASS_WITH_CACHE (unmanaged_function_pointer_attribute, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
223 static GENERATE_TRY_GET_CLASS_WITH_CACHE (icustom_marshaler, "System.Runtime.InteropServices", "ICustomMarshaler");
225 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
226 static MonoMethod *sh_dangerous_add_ref;
227 static MonoMethod *sh_dangerous_release;
232 sh_dangerous_add_ref = mono_class_get_method_from_name (
233 mono_class_try_get_safehandle_class (), "DangerousAddRef", 1);
234 sh_dangerous_release = mono_class_get_method_from_name (
235 mono_class_try_get_safehandle_class (), "DangerousRelease", 0);
239 register_icall (gpointer func, const char *name, const char *sigstr, gboolean no_wrapper)
241 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
243 mono_register_jit_icall (func, name, sig, no_wrapper);
247 register_icall_no_wrapper (gpointer func, const char *name, const char *sigstr)
249 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
251 mono_register_jit_icall (func, name, sig, TRUE);
255 mono_signature_no_pinvoke (MonoMethod *method)
257 MonoMethodSignature *sig = mono_method_signature (method);
259 sig = mono_metadata_signature_dup_full (method->klass->image, sig);
260 sig->pinvoke = FALSE;
267 mono_marshal_init_tls (void)
269 mono_native_tls_alloc (&last_error_tls_id, NULL);
270 mono_native_tls_alloc (&load_type_info_tls_id, NULL);
274 mono_object_isinst_icall (MonoObject *obj, MonoClass *klass)
277 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
278 mono_error_set_pending_exception (&error);
283 ves_icall_mono_string_from_utf16 (gunichar2 *data)
286 MonoString *result = mono_string_from_utf16_checked (data, &error);
287 mono_error_set_pending_exception (&error);
292 ves_icall_mono_string_to_utf8 (MonoString *str)
295 char *result = mono_string_to_utf8_checked (str, &error);
296 mono_error_set_pending_exception (&error);
301 mono_marshal_init (void)
303 static gboolean module_initialized = FALSE;
305 if (!module_initialized) {
306 module_initialized = TRUE;
307 mono_os_mutex_init_recursive (&marshal_mutex);
308 marshal_mutex_initialized = TRUE;
310 register_icall (ves_icall_System_Threading_Thread_ResetAbort, "ves_icall_System_Threading_Thread_ResetAbort", "void", TRUE);
311 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
312 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
313 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
314 register_icall (ves_icall_mono_string_from_utf16, "ves_icall_mono_string_from_utf16", "obj ptr", FALSE);
315 register_icall (mono_string_from_byvalstr, "mono_string_from_byvalstr", "obj ptr int", FALSE);
316 register_icall (mono_string_from_byvalwstr, "mono_string_from_byvalwstr", "obj ptr int", FALSE);
317 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
318 register_icall (mono_string_new_len_wrapper, "mono_string_new_len_wrapper", "obj ptr int", FALSE);
319 register_icall (ves_icall_mono_string_to_utf8, "ves_icall_mono_string_to_utf8", "ptr obj", FALSE);
320 register_icall (mono_string_to_utf8str, "mono_string_to_utf8str", "ptr obj", FALSE);
321 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
322 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
323 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
324 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
325 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
326 register_icall (mono_free_lparray, "mono_free_lparray", "void object ptr", FALSE);
327 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
328 register_icall (mono_byvalarray_to_byte_array, "mono_byvalarray_to_byte_array", "void object ptr int32", FALSE);
329 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
330 register_icall (mono_array_to_byte_byvalarray, "mono_array_to_byte_byvalarray", "void ptr object int32", FALSE);
331 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
332 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
333 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
334 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
335 register_icall (ves_icall_marshal_alloc, "ves_icall_marshal_alloc", "ptr ptr", FALSE);
336 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
337 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
338 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
339 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
340 register_icall (mono_string_utf8_to_builder2, "mono_string_utf8_to_builder2", "object ptr", FALSE);
341 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
342 register_icall (mono_string_utf16_to_builder2, "mono_string_utf16_to_builder2", "object ptr", FALSE);
343 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
344 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
345 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
346 register_icall (g_free, "g_free", "void ptr", FALSE);
347 register_icall_no_wrapper (mono_object_isinst_icall, "mono_object_isinst_icall", "object object ptr");
348 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
349 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
350 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
351 register_icall (mono_gc_wbarrier_generic_nostore, "wb_generic", "void ptr", FALSE);
352 register_icall (mono_gchandle_get_target, "mono_gchandle_get_target", "object int32", TRUE);
353 register_icall (mono_gchandle_new, "mono_gchandle_new", "uint32 object bool", TRUE);
354 register_icall (mono_marshal_isinst_with_cache, "mono_marshal_isinst_with_cache", "object object ptr ptr", FALSE);
355 register_icall (mono_marshal_ftnptr_eh_callback, "mono_marshal_ftnptr_eh_callback", "void uint32", TRUE);
356 register_icall (mono_threads_enter_gc_safe_region_unbalanced, "mono_threads_enter_gc_safe_region_unbalanced", "ptr ptr", TRUE);
357 register_icall (mono_threads_exit_gc_safe_region_unbalanced, "mono_threads_exit_gc_safe_region_unbalanced", "void ptr ptr", TRUE);
358 register_icall (mono_threads_attach_coop, "mono_threads_attach_coop", "ptr ptr ptr", TRUE);
359 register_icall (mono_threads_detach_coop, "mono_threads_detach_coop", "void ptr ptr", TRUE);
360 register_icall (mono_icall_start, "mono_icall_start", "ptr ptr ptr", TRUE);
361 register_icall (mono_icall_end, "mono_icall_end", "void ptr ptr ptr", TRUE);
362 register_icall (mono_handle_new_full, "mono_handle_new_full", "ptr ptr bool", TRUE);
364 mono_cominterop_init ();
365 mono_remoting_init ();
367 mono_counters_register ("MonoClass::class_marshal_info_count count",
368 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_marshal_info_count);
374 mono_marshal_cleanup (void)
376 mono_cominterop_cleanup ();
378 mono_native_tls_free (load_type_info_tls_id);
379 mono_native_tls_free (last_error_tls_id);
380 mono_os_mutex_destroy (&marshal_mutex);
381 marshal_mutex_initialized = FALSE;
385 mono_marshal_lock_internal (void)
387 mono_marshal_lock ();
391 mono_marshal_unlock_internal (void)
393 mono_marshal_unlock ();
396 /* This is a JIT icall, it sets the pending exception and return NULL on error */
398 mono_delegate_to_ftnptr (MonoDelegate *delegate)
401 MonoMethod *method, *wrapper;
403 uint32_t target_handle = 0;
408 if (delegate->delegate_trampoline)
409 return delegate->delegate_trampoline;
411 klass = ((MonoObject *)delegate)->vtable->klass;
412 g_assert (klass->delegate);
414 method = delegate->method;
415 if (delegate->method_is_virtual)
416 method = mono_object_get_virtual_method (delegate->target, method);
418 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
419 const char *exc_class, *exc_arg;
422 ftnptr = mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
424 g_assert (exc_class);
425 mono_set_pending_exception (mono_exception_from_name_msg (mono_defaults.corlib, "System", exc_class, exc_arg));
431 if (delegate->target) {
432 /* Produce a location which can be embedded in JITted code */
433 target_handle = mono_gchandle_new_weakref (delegate->target, FALSE);
436 wrapper = mono_marshal_get_managed_wrapper (method, klass, target_handle, &error);
440 delegate->delegate_trampoline = mono_compile_method_checked (wrapper, &error);
444 // Add the delegate to the delegate hash table
445 delegate_hash_table_add (delegate);
447 /* when the object is collected, collect the dynamic method, too */
448 mono_object_register_finalizer ((MonoObject*)delegate);
450 return delegate->delegate_trampoline;
453 if (target_handle != 0)
454 mono_gchandle_free (target_handle);
455 mono_error_set_pending_exception (&error);
460 * this hash table maps from a delegate trampoline object to a weak reference
461 * of the delegate. As an optimizations with a non-moving GC we store the
462 * object pointer itself, otherwise we use a GC handle.
464 static GHashTable *delegate_hash_table;
467 delegate_hash_table_new (void) {
468 return g_hash_table_new (NULL, NULL);
472 delegate_hash_table_remove (MonoDelegate *d)
474 guint32 gchandle = 0;
476 mono_marshal_lock ();
477 if (delegate_hash_table == NULL)
478 delegate_hash_table = delegate_hash_table_new ();
479 if (mono_gc_is_moving ())
480 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
481 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
482 mono_marshal_unlock ();
483 if (gchandle && mono_gc_is_moving ())
484 mono_gchandle_free (gchandle);
488 delegate_hash_table_add (MonoDelegate *d)
491 guint32 old_gchandle;
493 mono_marshal_lock ();
494 if (delegate_hash_table == NULL)
495 delegate_hash_table = delegate_hash_table_new ();
496 if (mono_gc_is_moving ()) {
497 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
498 old_gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
499 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
501 mono_gchandle_free (old_gchandle);
503 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
505 mono_marshal_unlock ();
509 * mono_marshal_use_aot_wrappers:
511 * Instructs this module to use AOT compatible wrappers.
514 mono_marshal_use_aot_wrappers (gboolean use)
516 use_aot_wrappers = use;
520 parse_unmanaged_function_pointer_attr (MonoClass *klass, MonoMethodPInvoke *piinfo)
523 MonoCustomAttrInfo *cinfo;
524 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
526 /* The attribute is only available in Net 2.0 */
527 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
529 * The pinvoke attributes are stored in a real custom attribute so we have to
532 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
533 if (!mono_error_ok (&error)) {
534 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
535 mono_error_cleanup (&error);
537 if (cinfo && !mono_runtime_get_no_exec ()) {
538 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr_checked (cinfo, mono_class_try_get_unmanaged_function_pointer_attribute_class (), &error);
540 piinfo->piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
542 if (!mono_error_ok (&error)) {
543 g_warning ("Could not load UnmanagedFunctionPointerAttribute due to %s", mono_error_get_message (&error));
544 mono_error_cleanup (&error);
548 mono_custom_attrs_free (cinfo);
553 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
555 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
564 mono_marshal_lock ();
565 if (delegate_hash_table == NULL)
566 delegate_hash_table = delegate_hash_table_new ();
568 if (mono_gc_is_moving ()) {
569 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
570 mono_marshal_unlock ();
572 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
576 d = (MonoDelegate *)g_hash_table_lookup (delegate_hash_table, ftn);
577 mono_marshal_unlock ();
580 /* This is a native function, so construct a delegate for it */
581 MonoMethodSignature *sig;
583 MonoMarshalSpec **mspecs;
584 MonoMethod *invoke = mono_get_delegate_invoke (klass);
585 MonoMethodPInvoke piinfo;
586 MonoObject *this_obj;
589 if (use_aot_wrappers) {
590 wrapper = mono_marshal_get_native_func_wrapper_aot (klass);
591 this_obj = mono_value_box_checked (mono_domain_get (), mono_defaults.int_class, &ftn, &error);
592 if (!is_ok (&error)) {
593 mono_error_set_pending_exception (&error);
597 memset (&piinfo, 0, sizeof (piinfo));
598 parse_unmanaged_function_pointer_attr (klass, &piinfo);
600 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
601 mono_method_get_marshal_info (invoke, mspecs);
602 /* Freed below so don't alloc from mempool */
603 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
606 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
609 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
611 mono_metadata_free_marshal_spec (mspecs [i]);
616 d = (MonoDelegate*)mono_object_new_checked (mono_domain_get (), klass, &error);
617 if (!mono_error_ok (&error)) {
618 mono_error_set_pending_exception (&error);
621 gpointer compiled_ptr = mono_compile_method_checked (wrapper, &error);
622 if (mono_error_set_pending_exception (&error))
624 mono_delegate_ctor_with_method ((MonoObject*)d, this_obj, compiled_ptr, wrapper, &error);
625 if (mono_error_set_pending_exception (&error))
629 if (d->object.vtable->domain != mono_domain_get ()) {
630 mono_set_pending_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
638 mono_delegate_free_ftnptr (MonoDelegate *delegate)
643 delegate_hash_table_remove (delegate);
645 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
647 if (!delegate->target) {
648 /* The wrapper method is shared between delegates -> no need to free it */
657 ji = mono_jit_info_table_find (mono_domain_get (), (char *)mono_get_addr_from_ftnptr (ptr));
660 method = mono_jit_info_get_method (ji);
661 method_data = (void **)((MonoMethodWrapper*)method)->method_data;
663 /*the target gchandle is the first entry after size and the wrapper itself.*/
664 gchandle = GPOINTER_TO_UINT (method_data [2]);
667 mono_gchandle_free (gchandle);
669 mono_runtime_free_method (mono_object_domain (delegate), method);
673 /* This is a JIT icall, it sets the pending exception and returns NULL on error */
675 mono_string_from_byvalstr (const char *data, int max_len)
678 MonoDomain *domain = mono_domain_get ();
684 while (len < max_len - 1 && data [len])
687 MonoString *result = mono_string_new_len_checked (domain, data, len, &error);
688 mono_error_set_pending_exception (&error);
692 /* This is a JIT icall, it sets the pending exception and return NULL on error */
694 mono_string_from_byvalwstr (gunichar2 *data, int max_len)
697 MonoString *res = NULL;
698 MonoDomain *domain = mono_domain_get ();
704 while (data [len]) len++;
706 res = mono_string_new_utf16_checked (domain, data, MIN (len, max_len), &error);
707 if (!mono_error_ok (&error)) {
708 mono_error_set_pending_exception (&error);
715 mono_array_to_savearray (MonoArray *array)
720 g_assert_not_reached ();
725 mono_array_to_lparray (MonoArray *array)
728 gpointer *nativeArray = NULL;
729 int nativeArraySize = 0;
739 klass = array->obj.vtable->klass;
741 switch (klass->element_class->byval_arg.type) {
743 g_assert_not_reached ();
745 case MONO_TYPE_CLASS:
746 nativeArraySize = array->max_length;
747 nativeArray = (void **)malloc(sizeof(gpointer) * nativeArraySize);
748 for(i = 0; i < nativeArraySize; ++i)
749 nativeArray[i] = ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal(((MonoObject **)array->vector)[i]);
752 case MONO_TYPE_BOOLEAN:
765 case MONO_TYPE_VALUETYPE:
769 case MONO_TYPE_GENERICINST:
770 case MONO_TYPE_OBJECT:
771 case MONO_TYPE_ARRAY:
772 case MONO_TYPE_SZARRAY:
773 case MONO_TYPE_STRING:
775 g_warning ("type 0x%x not handled", klass->element_class->byval_arg.type);
776 g_assert_not_reached ();
779 return array->vector;
783 mono_free_lparray (MonoArray *array, gpointer* nativeArray)
794 klass = array->obj.vtable->klass;
796 if (klass->element_class->byval_arg.type == MONO_TYPE_CLASS) {
797 for(i = 0; i < array->max_length; ++i)
798 mono_marshal_free_ccw (mono_array_get (array, MonoObject*, i));
799 g_free (nativeArray);
805 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
807 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
809 if (elclass == mono_defaults.byte_class) {
810 GError *error = NULL;
814 ut = g_utf8_to_utf16 ((const gchar *)native_arr, elnum, NULL, &items_written, &error);
817 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
821 g_error_free (error);
824 g_assert_not_reached ();
828 mono_byvalarray_to_byte_array (MonoArray *arr, gpointer native_arr, guint32 elnum)
830 mono_byvalarray_to_array (arr, native_arr, mono_defaults.byte_class, elnum);
833 /* This is a JIT icall, it sets the pending exception and returns on error */
835 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
837 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
839 if (elclass == mono_defaults.byte_class) {
841 GError *error = NULL;
843 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
845 mono_set_pending_exception (mono_get_exception_argument ("string", error->message));
846 g_error_free (error);
850 memcpy (native_arr, as, MIN (strlen (as), elnum));
853 g_assert_not_reached ();
858 mono_array_to_byte_byvalarray (gpointer native_arr, MonoArray *arr, guint32 elnum)
860 mono_array_to_byvalarray (native_arr, arr, mono_defaults.byte_class, elnum);
863 static MonoStringBuilder *
864 mono_string_builder_new (int starting_string_length)
866 static MonoClass *string_builder_class;
867 static MonoMethod *sb_ctor;
868 static void *args [1];
871 int initial_len = starting_string_length;
877 MonoMethodDesc *desc;
880 string_builder_class = mono_class_get_string_builder_class ();
881 g_assert (string_builder_class);
882 desc = mono_method_desc_new (":.ctor(int)", FALSE);
883 m = mono_method_desc_search_in_class (desc, string_builder_class);
885 mono_method_desc_free (desc);
886 mono_memory_barrier ();
890 // We make a new array in the _to_builder function, so this
891 // array will always be garbage collected.
892 args [0] = &initial_len;
894 MonoStringBuilder *sb = (MonoStringBuilder*)mono_object_new_checked (mono_domain_get (), string_builder_class, &error);
895 mono_error_assert_ok (&error);
898 mono_runtime_try_invoke (sb_ctor, sb, args, &exc, &error);
899 g_assert (exc == NULL);
900 mono_error_assert_ok (&error);
902 g_assert (sb->chunkChars->max_length >= initial_len);
908 mono_string_utf16_to_builder_copy (MonoStringBuilder *sb, gunichar2 *text, size_t string_len)
910 gunichar2 *charDst = (gunichar2 *)sb->chunkChars->vector;
911 gunichar2 *charSrc = (gunichar2 *)text;
912 memcpy (charDst, charSrc, sizeof (gunichar2) * string_len);
914 sb->chunkLength = string_len;
920 mono_string_utf16_to_builder2 (gunichar2 *text)
926 for (len = 0; text [len] != 0; ++len);
928 MonoStringBuilder *sb = mono_string_builder_new (len);
929 mono_string_utf16_to_builder (sb, text);
935 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
940 GError *error = NULL;
942 gunichar2* ut = g_utf8_to_utf16 (text, strlen (text), NULL, &copied, &error);
943 int capacity = mono_string_builder_capacity (sb);
945 if (copied > capacity)
949 MONO_OBJECT_SETREF (sb, chunkPrevious, NULL);
950 mono_string_utf16_to_builder_copy (sb, ut, copied);
952 g_error_free (error);
958 mono_string_utf8_to_builder2 (char *text)
963 int len = strlen (text);
964 MonoStringBuilder *sb = mono_string_builder_new (len);
965 mono_string_utf8_to_builder (sb, text);
971 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
977 for (len = 0; text [len] != 0; ++len);
979 if (len > mono_string_builder_capacity (sb))
980 len = mono_string_builder_capacity (sb);
982 mono_string_utf16_to_builder_copy (sb, text, len);
986 * mono_string_builder_to_utf8:
987 * \param sb the string builder
989 * Converts to utf8 the contents of the \c MonoStringBuilder .
991 * \returns a utf8 string with the contents of the \c StringBuilder .
993 * The return value must be released with mono_marshal_free.
995 * This is a JIT icall, it sets the pending exception and returns NULL on error.
998 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
1001 GError *gerror = NULL;
1006 gunichar2 *str_utf16 = mono_string_builder_to_utf16 (sb);
1008 guint str_len = mono_string_builder_string_length (sb);
1010 gchar *tmp = g_utf16_to_utf8 (str_utf16, str_len, NULL, &byte_count, &gerror);
1013 g_error_free (gerror);
1014 mono_marshal_free (str_utf16);
1015 mono_set_pending_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
1018 guint len = mono_string_builder_capacity (sb) + 1;
1019 gchar *res = (gchar *)mono_marshal_alloc (MAX (byte_count+1, len * sizeof (gchar)), &error);
1020 if (!mono_error_ok (&error)) {
1021 mono_marshal_free (str_utf16);
1023 mono_error_set_pending_exception (&error);
1027 memcpy (res, tmp, byte_count);
1028 res[byte_count] = '\0';
1030 mono_marshal_free (str_utf16);
1037 * mono_string_builder_to_utf16:
1038 * \param sb the string builder
1040 * Converts to utf16 the contents of the \c MonoStringBuilder .
1042 * Returns: a utf16 string with the contents of the \c StringBuilder .
1044 * The return value must be released with mono_marshal_free.
1046 * This is a JIT icall, it sets the pending exception and returns NULL on error.
1049 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1056 g_assert (sb->chunkChars);
1058 guint len = mono_string_builder_capacity (sb);
1063 gunichar2 *str = (gunichar2 *)mono_marshal_alloc ((len + 1) * sizeof (gunichar2), &error);
1064 if (!mono_error_ok (&error)) {
1065 mono_error_set_pending_exception (&error);
1074 MonoStringBuilder* chunk = sb;
1076 if (chunk->chunkLength > 0) {
1077 // Check that we will not overrun our boundaries.
1078 gunichar2 *source = (gunichar2 *)chunk->chunkChars->vector;
1080 if (chunk->chunkLength <= len) {
1081 memcpy (str + chunk->chunkOffset, source, chunk->chunkLength * sizeof(gunichar2));
1083 g_error ("A chunk in the StringBuilder had a length longer than expected from the offset.");
1086 len -= chunk->chunkLength;
1088 chunk = chunk->chunkPrevious;
1089 } while (chunk != NULL);
1095 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
1097 mono_string_to_utf8str (MonoString *s)
1100 char *result = mono_string_to_utf8_checked (s, &error);
1101 mono_error_set_pending_exception (&error);
1107 mono_string_to_ansibstr (MonoString *string_obj)
1109 g_error ("UnmanagedMarshal.BStr is not implemented.");
1114 * mono_string_to_byvalstr:
1115 * \param dst Where to store the null-terminated utf8 decoded string.
1116 * \param src the \c MonoString to copy.
1117 * \param size the maximum number of bytes to copy.
1119 * Copies the \c MonoString pointed to by \p src as a utf8 string
1120 * into \p dst, it copies at most \p size bytes into the destination.
1123 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1129 g_assert (dst != NULL);
1130 g_assert (size > 0);
1132 memset (dst, 0, size);
1136 s = mono_string_to_utf8_checked (src, &error);
1137 if (mono_error_set_pending_exception (&error))
1139 len = MIN (size, strlen (s));
1142 memcpy (dst, s, len);
1147 * mono_string_to_byvalwstr:
1148 * \param dst Where to store the null-terminated utf16 decoded string.
1149 * \param src the \c MonoString to copy.
1150 * \param size the maximum number of wide characters to copy (each consumes 2 bytes)
1152 * Copies the \c MonoString pointed to by \p src as a utf16 string into
1153 * \p dst, it copies at most \p size bytes into the destination (including
1154 * a terminating 16-bit zero terminator).
1157 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1161 g_assert (dst != NULL);
1162 g_assert (size > 1);
1165 memset (dst, 0, size * 2);
1169 len = MIN (size, (mono_string_length (src)));
1170 memcpy (dst, mono_string_chars (src), len * 2);
1171 if (size <= mono_string_length (src))
1173 *((gunichar2 *) dst + len) = 0;
1176 /* this is an icall, it sets the pending exception and returns NULL on error */
1178 mono_string_new_len_wrapper (const char *text, guint length)
1181 MonoString *result = mono_string_new_len_checked (mono_domain_get (), text, length, &error);
1182 mono_error_set_pending_exception (&error);
1189 * mono_mb_emit_exception_marshal_directive:
1191 * This function assumes ownership of MSG, which should be malloc-ed.
1194 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, char *msg)
1199 s = mono_image_strdup (mb->method->klass->image, msg);
1204 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", s);
1207 #endif /* !DISABLE_JIT */
1210 mono_type_to_ldind (MonoType *type)
1216 switch (type->type) {
1218 return CEE_LDIND_I1;
1220 case MONO_TYPE_BOOLEAN:
1221 return CEE_LDIND_U1;
1223 return CEE_LDIND_I2;
1225 case MONO_TYPE_CHAR:
1226 return CEE_LDIND_U2;
1228 return CEE_LDIND_I4;
1230 return CEE_LDIND_U4;
1234 case MONO_TYPE_FNPTR:
1236 case MONO_TYPE_CLASS:
1237 case MONO_TYPE_STRING:
1238 case MONO_TYPE_OBJECT:
1239 case MONO_TYPE_SZARRAY:
1240 case MONO_TYPE_ARRAY:
1241 return CEE_LDIND_REF;
1244 return CEE_LDIND_I8;
1246 return CEE_LDIND_R4;
1248 return CEE_LDIND_R8;
1249 case MONO_TYPE_VALUETYPE:
1250 if (type->data.klass->enumtype) {
1251 type = mono_class_enum_basetype (type->data.klass);
1255 case MONO_TYPE_TYPEDBYREF:
1257 case MONO_TYPE_GENERICINST:
1258 type = &type->data.generic_class->container_class->byval_arg;
1261 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1267 mono_type_to_stind (MonoType *type)
1270 return MONO_TYPE_IS_REFERENCE (type) ? CEE_STIND_REF : CEE_STIND_I;
1274 switch (type->type) {
1277 case MONO_TYPE_BOOLEAN:
1278 return CEE_STIND_I1;
1281 case MONO_TYPE_CHAR:
1282 return CEE_STIND_I2;
1285 return CEE_STIND_I4;
1289 case MONO_TYPE_FNPTR:
1291 case MONO_TYPE_CLASS:
1292 case MONO_TYPE_STRING:
1293 case MONO_TYPE_OBJECT:
1294 case MONO_TYPE_SZARRAY:
1295 case MONO_TYPE_ARRAY:
1296 return CEE_STIND_REF;
1299 return CEE_STIND_I8;
1301 return CEE_STIND_R4;
1303 return CEE_STIND_R8;
1304 case MONO_TYPE_VALUETYPE:
1305 if (type->data.klass->enumtype) {
1306 type = mono_class_enum_basetype (type->data.klass);
1310 case MONO_TYPE_TYPEDBYREF:
1312 case MONO_TYPE_GENERICINST:
1313 type = &type->data.generic_class->container_class->byval_arg;
1316 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1324 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1327 case MONO_MARSHAL_CONV_BOOL_I4:
1328 mono_mb_emit_ldloc (mb, 1);
1329 mono_mb_emit_ldloc (mb, 0);
1330 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1331 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1332 mono_mb_emit_byte (mb, 3);
1333 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1334 mono_mb_emit_byte (mb, CEE_BR_S);
1335 mono_mb_emit_byte (mb, 1);
1336 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1337 mono_mb_emit_byte (mb, CEE_STIND_I1);
1339 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1340 mono_mb_emit_ldloc (mb, 1);
1341 mono_mb_emit_ldloc (mb, 0);
1342 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1343 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1344 mono_mb_emit_byte (mb, 3);
1345 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1346 mono_mb_emit_byte (mb, CEE_BR_S);
1347 mono_mb_emit_byte (mb, 1);
1348 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1349 mono_mb_emit_byte (mb, CEE_STIND_I1);
1351 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1352 MonoClass *eklass = NULL;
1355 if (type->type == MONO_TYPE_SZARRAY) {
1356 eklass = type->data.klass;
1358 g_assert_not_reached ();
1361 esize = mono_class_native_size (eklass, NULL);
1363 /* create a new array */
1364 mono_mb_emit_ldloc (mb, 1);
1365 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1366 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1367 mono_mb_emit_byte (mb, CEE_STIND_REF);
1369 if (eklass->blittable) {
1370 /* copy the elements */
1371 mono_mb_emit_ldloc (mb, 1);
1372 mono_mb_emit_byte (mb, CEE_LDIND_I);
1373 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1374 mono_mb_emit_byte (mb, CEE_ADD);
1375 mono_mb_emit_ldloc (mb, 0);
1376 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1377 mono_mb_emit_byte (mb, CEE_PREFIX1);
1378 mono_mb_emit_byte (mb, CEE_CPBLK);
1381 int array_var, src_var, dst_var, index_var;
1382 guint32 label2, label3;
1384 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1385 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1386 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1389 mono_mb_emit_ldloc (mb, 1);
1390 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1391 mono_mb_emit_stloc (mb, array_var);
1393 /* save the old src pointer */
1394 mono_mb_emit_ldloc (mb, 0);
1395 mono_mb_emit_stloc (mb, src_var);
1396 /* save the old dst pointer */
1397 mono_mb_emit_ldloc (mb, 1);
1398 mono_mb_emit_stloc (mb, dst_var);
1400 /* Emit marshalling loop */
1401 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1402 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1403 mono_mb_emit_stloc (mb, index_var);
1406 label2 = mono_mb_get_label (mb);
1407 mono_mb_emit_ldloc (mb, index_var);
1408 mono_mb_emit_ldloc (mb, array_var);
1409 mono_mb_emit_byte (mb, CEE_LDLEN);
1410 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1412 /* src is already set */
1415 mono_mb_emit_ldloc (mb, array_var);
1416 mono_mb_emit_ldloc (mb, index_var);
1417 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1418 mono_mb_emit_stloc (mb, 1);
1420 /* Do the conversion */
1421 emit_struct_conv (mb, eklass, TRUE);
1424 mono_mb_emit_add_to_local (mb, index_var, 1);
1426 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1428 mono_mb_patch_branch (mb, label3);
1430 /* restore the old src pointer */
1431 mono_mb_emit_ldloc (mb, src_var);
1432 mono_mb_emit_stloc (mb, 0);
1433 /* restore the old dst pointer */
1434 mono_mb_emit_ldloc (mb, dst_var);
1435 mono_mb_emit_stloc (mb, 1);
1439 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1440 MonoClass *eclass = mono_defaults.char_class;
1442 /* create a new array */
1443 mono_mb_emit_ldloc (mb, 1);
1444 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1445 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1446 mono_mb_emit_byte (mb, CEE_STIND_REF);
1448 mono_mb_emit_ldloc (mb, 1);
1449 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1450 mono_mb_emit_ldloc (mb, 0);
1451 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1452 mono_mb_emit_icall (mb, mono_byvalarray_to_byte_array);
1455 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1456 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1457 mono_mb_emit_ldloc (mb, 1);
1458 mono_mb_emit_ldloc (mb, 0);
1459 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1460 mono_mb_emit_icall (mb, mono_string_from_byvalstr);
1462 mono_mb_emit_ldloc (mb, 1);
1463 mono_mb_emit_ldloc (mb, 0);
1464 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1466 mono_mb_emit_byte (mb, CEE_STIND_REF);
1468 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1469 if (mspec && mspec->native == MONO_NATIVE_BYVALTSTR && mspec->data.array_data.num_elem) {
1470 mono_mb_emit_ldloc (mb, 1);
1471 mono_mb_emit_ldloc (mb, 0);
1472 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1473 mono_mb_emit_icall (mb, mono_string_from_byvalwstr);
1475 mono_mb_emit_ldloc (mb, 1);
1476 mono_mb_emit_ldloc (mb, 0);
1477 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1479 mono_mb_emit_byte (mb, CEE_STIND_REF);
1481 case MONO_MARSHAL_CONV_STR_LPTSTR:
1482 mono_mb_emit_ldloc (mb, 1);
1483 mono_mb_emit_ldloc (mb, 0);
1484 mono_mb_emit_byte (mb, CEE_LDIND_I);
1486 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1488 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1490 mono_mb_emit_byte (mb, CEE_STIND_REF);
1493 // In Mono historically LPSTR was treated as a UTF8STR
1494 case MONO_MARSHAL_CONV_STR_LPSTR:
1495 case MONO_MARSHAL_CONV_STR_UTF8STR:
1496 mono_mb_emit_ldloc (mb, 1);
1497 mono_mb_emit_ldloc (mb, 0);
1498 mono_mb_emit_byte (mb, CEE_LDIND_I);
1499 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1500 mono_mb_emit_byte (mb, CEE_STIND_REF);
1502 case MONO_MARSHAL_CONV_STR_LPWSTR:
1503 mono_mb_emit_ldloc (mb, 1);
1504 mono_mb_emit_ldloc (mb, 0);
1505 mono_mb_emit_byte (mb, CEE_LDIND_I);
1506 mono_mb_emit_icall (mb, ves_icall_mono_string_from_utf16);
1507 mono_mb_emit_byte (mb, CEE_STIND_REF);
1509 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1510 MonoClass *klass = mono_class_from_mono_type (type);
1511 int src_var, dst_var;
1513 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1514 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1516 /* *dst = new object */
1517 mono_mb_emit_ldloc (mb, 1);
1518 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1519 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1520 mono_mb_emit_byte (mb, CEE_STIND_REF);
1522 /* save the old src pointer */
1523 mono_mb_emit_ldloc (mb, 0);
1524 mono_mb_emit_stloc (mb, src_var);
1525 /* save the old dst pointer */
1526 mono_mb_emit_ldloc (mb, 1);
1527 mono_mb_emit_stloc (mb, dst_var);
1529 /* dst = pointer to newly created object data */
1530 mono_mb_emit_ldloc (mb, 1);
1531 mono_mb_emit_byte (mb, CEE_LDIND_I);
1532 mono_mb_emit_icon (mb, sizeof (MonoObject));
1533 mono_mb_emit_byte (mb, CEE_ADD);
1534 mono_mb_emit_stloc (mb, 1);
1536 emit_struct_conv (mb, klass, TRUE);
1538 /* restore the old src pointer */
1539 mono_mb_emit_ldloc (mb, src_var);
1540 mono_mb_emit_stloc (mb, 0);
1541 /* restore the old dst pointer */
1542 mono_mb_emit_ldloc (mb, dst_var);
1543 mono_mb_emit_stloc (mb, 1);
1546 case MONO_MARSHAL_CONV_DEL_FTN: {
1547 MonoClass *klass = mono_class_from_mono_type (type);
1549 mono_mb_emit_ldloc (mb, 1);
1550 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1551 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1552 mono_mb_emit_ldloc (mb, 0);
1553 mono_mb_emit_byte (mb, CEE_LDIND_I);
1554 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1555 mono_mb_emit_byte (mb, CEE_STIND_REF);
1558 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1559 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1563 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1564 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1565 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1566 mono_cominterop_emit_ptr_to_object_conv (mb, type, conv, mspec);
1568 #endif /* DISABLE_COM */
1570 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1572 * Passing SafeHandles as ref does not allow the unmanaged code
1573 * to change the SafeHandle value. If the value is changed,
1574 * we should issue a diagnostic exception (NotSupportedException)
1575 * that informs the user that changes to handles in unmanaged code
1578 * Since we currently have no access to the original
1579 * SafeHandle that was used during the marshalling,
1580 * for now we just ignore this, and ignore/discard any
1581 * changes that might have happened to the handle.
1586 case MONO_MARSHAL_CONV_HANDLEREF: {
1588 * Passing HandleRefs in a struct that is ref()ed does not
1589 * copy the values back to the HandleRef
1594 case MONO_MARSHAL_CONV_STR_BSTR:
1595 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1596 case MONO_MARSHAL_CONV_STR_TBSTR:
1597 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1599 char *msg = g_strdup_printf ("marshaling conversion %d not implemented", conv);
1601 mono_mb_emit_exception_marshal_directive (mb, msg);
1608 conv_to_icall (MonoMarshalConv conv, int *ind_store_type)
1611 if (!ind_store_type)
1612 ind_store_type = &dummy;
1613 *ind_store_type = CEE_STIND_I;
1615 case MONO_MARSHAL_CONV_STR_LPWSTR:
1616 return mono_marshal_string_to_utf16;
1617 case MONO_MARSHAL_CONV_LPWSTR_STR:
1618 *ind_store_type = CEE_STIND_REF;
1619 return ves_icall_mono_string_from_utf16;
1620 case MONO_MARSHAL_CONV_LPTSTR_STR:
1621 *ind_store_type = CEE_STIND_REF;
1622 return mono_string_new_wrapper;
1623 case MONO_MARSHAL_CONV_UTF8STR_STR:
1624 case MONO_MARSHAL_CONV_LPSTR_STR:
1625 *ind_store_type = CEE_STIND_REF;
1626 return mono_string_new_wrapper;
1627 case MONO_MARSHAL_CONV_STR_LPTSTR:
1629 return mono_marshal_string_to_utf16;
1631 return mono_string_to_utf8str;
1633 // In Mono historically LPSTR was treated as a UTF8STR
1634 case MONO_MARSHAL_CONV_STR_UTF8STR:
1635 case MONO_MARSHAL_CONV_STR_LPSTR:
1636 return mono_string_to_utf8str;
1637 case MONO_MARSHAL_CONV_STR_BSTR:
1638 return mono_string_to_bstr;
1639 case MONO_MARSHAL_CONV_BSTR_STR:
1640 *ind_store_type = CEE_STIND_REF;
1641 return mono_string_from_bstr_icall;
1642 case MONO_MARSHAL_CONV_STR_TBSTR:
1643 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1644 return mono_string_to_ansibstr;
1645 case MONO_MARSHAL_CONV_SB_UTF8STR:
1646 case MONO_MARSHAL_CONV_SB_LPSTR:
1647 return mono_string_builder_to_utf8;
1648 case MONO_MARSHAL_CONV_SB_LPTSTR:
1650 return mono_string_builder_to_utf16;
1652 return mono_string_builder_to_utf8;
1654 case MONO_MARSHAL_CONV_SB_LPWSTR:
1655 return mono_string_builder_to_utf16;
1656 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1657 return mono_array_to_savearray;
1658 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1659 return mono_array_to_lparray;
1660 case MONO_MARSHAL_FREE_LPARRAY:
1661 return mono_free_lparray;
1662 case MONO_MARSHAL_CONV_DEL_FTN:
1663 return mono_delegate_to_ftnptr;
1664 case MONO_MARSHAL_CONV_FTN_DEL:
1665 *ind_store_type = CEE_STIND_REF;
1666 return mono_ftnptr_to_delegate;
1667 case MONO_MARSHAL_CONV_UTF8STR_SB:
1668 case MONO_MARSHAL_CONV_LPSTR_SB:
1669 *ind_store_type = CEE_STIND_REF;
1670 return mono_string_utf8_to_builder;
1671 case MONO_MARSHAL_CONV_LPTSTR_SB:
1672 *ind_store_type = CEE_STIND_REF;
1674 return mono_string_utf16_to_builder;
1676 return mono_string_utf8_to_builder;
1678 case MONO_MARSHAL_CONV_LPWSTR_SB:
1679 *ind_store_type = CEE_STIND_REF;
1680 return mono_string_utf16_to_builder;
1681 case MONO_MARSHAL_FREE_ARRAY:
1682 return mono_marshal_free_array;
1683 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1684 return mono_string_to_byvalstr;
1685 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1686 return mono_string_to_byvalwstr;
1688 g_assert_not_reached ();
1695 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1701 case MONO_MARSHAL_CONV_BOOL_I4:
1702 mono_mb_emit_ldloc (mb, 1);
1703 mono_mb_emit_ldloc (mb, 0);
1704 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1705 mono_mb_emit_byte (mb, CEE_STIND_I4);
1707 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1708 mono_mb_emit_ldloc (mb, 1);
1709 mono_mb_emit_ldloc (mb, 0);
1710 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1711 mono_mb_emit_byte (mb, CEE_NEG);
1712 mono_mb_emit_byte (mb, CEE_STIND_I2);
1714 // In Mono historically LPSTR was treated as a UTF8STR
1715 case MONO_MARSHAL_CONV_STR_UTF8STR:
1716 case MONO_MARSHAL_CONV_STR_LPWSTR:
1717 case MONO_MARSHAL_CONV_STR_LPSTR:
1718 case MONO_MARSHAL_CONV_STR_LPTSTR:
1719 case MONO_MARSHAL_CONV_STR_BSTR:
1720 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1721 case MONO_MARSHAL_CONV_STR_TBSTR: {
1724 /* free space if free == true */
1725 mono_mb_emit_ldloc (mb, 2);
1726 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1727 mono_mb_emit_ldloc (mb, 1);
1728 mono_mb_emit_byte (mb, CEE_LDIND_I);
1729 mono_mb_emit_icall (mb, g_free);
1730 mono_mb_patch_short_branch (mb, pos);
1732 mono_mb_emit_ldloc (mb, 1);
1733 mono_mb_emit_ldloc (mb, 0);
1734 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1735 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1736 mono_mb_emit_byte (mb, stind_op);
1739 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1740 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1741 case MONO_MARSHAL_CONV_DEL_FTN:
1742 mono_mb_emit_ldloc (mb, 1);
1743 mono_mb_emit_ldloc (mb, 0);
1744 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1745 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
1746 mono_mb_emit_byte (mb, stind_op);
1748 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1749 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1752 mono_mb_emit_ldloc (mb, 1); /* dst */
1753 mono_mb_emit_ldloc (mb, 0);
1754 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1755 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1756 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
1759 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1760 MonoClass *eklass = NULL;
1763 if (type->type == MONO_TYPE_SZARRAY) {
1764 eklass = type->data.klass;
1766 g_assert_not_reached ();
1769 if (eklass->valuetype)
1770 esize = mono_class_native_size (eklass, NULL);
1772 esize = sizeof (gpointer);
1774 mono_mb_emit_ldloc (mb, 0);
1775 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1776 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1778 if (eklass->blittable) {
1779 mono_mb_emit_ldloc (mb, 1);
1780 mono_mb_emit_ldloc (mb, 0);
1781 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1782 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
1783 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1784 mono_mb_emit_byte (mb, CEE_PREFIX1);
1785 mono_mb_emit_byte (mb, CEE_CPBLK);
1787 int array_var, src_var, dst_var, index_var;
1788 guint32 label2, label3;
1790 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1791 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1792 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1795 mono_mb_emit_ldloc (mb, 0);
1796 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1797 mono_mb_emit_stloc (mb, array_var);
1799 /* save the old src pointer */
1800 mono_mb_emit_ldloc (mb, 0);
1801 mono_mb_emit_stloc (mb, src_var);
1802 /* save the old dst pointer */
1803 mono_mb_emit_ldloc (mb, 1);
1804 mono_mb_emit_stloc (mb, dst_var);
1806 /* Emit marshalling loop */
1807 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1808 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1809 mono_mb_emit_stloc (mb, index_var);
1812 label2 = mono_mb_get_label (mb);
1813 mono_mb_emit_ldloc (mb, index_var);
1814 mono_mb_emit_ldloc (mb, array_var);
1815 mono_mb_emit_byte (mb, CEE_LDLEN);
1816 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1819 mono_mb_emit_ldloc (mb, array_var);
1820 mono_mb_emit_ldloc (mb, index_var);
1821 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1822 mono_mb_emit_stloc (mb, 0);
1824 /* dst is already set */
1826 /* Do the conversion */
1827 emit_struct_conv (mb, eklass, FALSE);
1830 mono_mb_emit_add_to_local (mb, index_var, 1);
1832 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1834 mono_mb_patch_branch (mb, label3);
1836 /* restore the old src pointer */
1837 mono_mb_emit_ldloc (mb, src_var);
1838 mono_mb_emit_stloc (mb, 0);
1839 /* restore the old dst pointer */
1840 mono_mb_emit_ldloc (mb, dst_var);
1841 mono_mb_emit_stloc (mb, 1);
1844 mono_mb_patch_branch (mb, pos);
1847 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1848 mono_mb_emit_ldloc (mb, 0);
1849 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1850 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1852 mono_mb_emit_ldloc (mb, 1);
1853 mono_mb_emit_ldloc (mb, 0);
1854 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1855 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1856 mono_mb_emit_icall (mb, mono_array_to_byte_byvalarray);
1857 mono_mb_patch_short_branch (mb, pos);
1860 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1861 int src_var, dst_var;
1863 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1864 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1866 mono_mb_emit_ldloc (mb, 0);
1867 mono_mb_emit_byte (mb, CEE_LDIND_I);
1868 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1870 /* save the old src pointer */
1871 mono_mb_emit_ldloc (mb, 0);
1872 mono_mb_emit_stloc (mb, src_var);
1873 /* save the old dst pointer */
1874 mono_mb_emit_ldloc (mb, 1);
1875 mono_mb_emit_stloc (mb, dst_var);
1877 /* src = pointer to object data */
1878 mono_mb_emit_ldloc (mb, 0);
1879 mono_mb_emit_byte (mb, CEE_LDIND_I);
1880 mono_mb_emit_icon (mb, sizeof (MonoObject));
1881 mono_mb_emit_byte (mb, CEE_ADD);
1882 mono_mb_emit_stloc (mb, 0);
1884 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1886 /* restore the old src pointer */
1887 mono_mb_emit_ldloc (mb, src_var);
1888 mono_mb_emit_stloc (mb, 0);
1889 /* restore the old dst pointer */
1890 mono_mb_emit_ldloc (mb, dst_var);
1891 mono_mb_emit_stloc (mb, 1);
1893 mono_mb_patch_branch (mb, pos);
1898 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1899 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1900 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1901 mono_cominterop_emit_object_to_ptr_conv (mb, type, conv, mspec);
1903 #endif /* DISABLE_COM */
1905 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1908 mono_mb_emit_ldloc (mb, 0);
1909 mono_mb_emit_byte (mb, CEE_LDIND_I);
1910 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
1911 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
1912 mono_mb_patch_branch (mb, pos);
1914 /* Pull the handle field from SafeHandle */
1915 mono_mb_emit_ldloc (mb, 1);
1916 mono_mb_emit_ldloc (mb, 0);
1917 mono_mb_emit_byte (mb, CEE_LDIND_I);
1918 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
1919 mono_mb_emit_byte (mb, CEE_LDIND_I);
1920 mono_mb_emit_byte (mb, CEE_STIND_I);
1924 case MONO_MARSHAL_CONV_HANDLEREF: {
1925 mono_mb_emit_ldloc (mb, 1);
1926 mono_mb_emit_ldloc (mb, 0);
1927 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
1928 mono_mb_emit_byte (mb, CEE_ADD);
1929 mono_mb_emit_byte (mb, CEE_LDIND_I);
1930 mono_mb_emit_byte (mb, CEE_STIND_I);
1935 g_error ("marshalling conversion %d not implemented", conv);
1941 offset_of_first_nonstatic_field (MonoClass *klass)
1944 int fcount = mono_class_get_field_count (klass);
1945 mono_class_setup_fields (klass);
1946 for (i = 0; i < fcount; i++) {
1947 if (!(klass->fields[i].type->attrs & FIELD_ATTRIBUTE_STATIC) && !mono_field_is_deleted (&klass->fields[i]))
1948 return klass->fields[i].offset - sizeof (MonoObject);
1955 get_fixed_buffer_attr (MonoClassField *field, MonoType **out_etype, int *out_len)
1958 MonoCustomAttrInfo *cinfo;
1959 MonoCustomAttrEntry *attr;
1962 cinfo = mono_custom_attrs_from_field_checked (field->parent, field, &error);
1963 if (!is_ok (&error))
1967 for (aindex = 0; aindex < cinfo->num_attrs; ++aindex) {
1968 MonoClass *ctor_class = cinfo->attrs [aindex].ctor->klass;
1969 if (mono_class_has_parent (ctor_class, mono_class_get_fixed_buffer_attribute_class ())) {
1970 attr = &cinfo->attrs [aindex];
1976 MonoArray *typed_args, *named_args;
1977 CattrNamedArg *arginfo;
1980 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
1981 if (!is_ok (&error))
1983 g_assert (mono_array_length (typed_args) == 2);
1986 o = mono_array_get (typed_args, MonoObject*, 0);
1987 *out_etype = monotype_cast (o)->type;
1988 o = mono_array_get (typed_args, MonoObject*, 1);
1989 g_assert (o->vtable->klass == mono_defaults.int32_class);
1990 *out_len = *(gint32*)mono_object_unbox (o);
1993 if (cinfo && !cinfo->cached)
1994 mono_custom_attrs_free (cinfo);
1995 return attr != NULL;
1999 emit_fixed_buf_conv (MonoMethodBuilder *mb, MonoType *type, MonoType *etype, int len, gboolean to_object, int *out_usize)
2001 MonoClass *klass = mono_class_from_mono_type (type);
2002 MonoClass *eklass = mono_class_from_mono_type (etype);
2005 esize = mono_class_native_size (eklass, NULL);
2007 MonoMarshalNative string_encoding = klass->unicode ? MONO_NATIVE_LPWSTR : MONO_NATIVE_LPSTR;
2008 int usize = mono_class_value_size (eklass, NULL);
2009 int msize = mono_class_value_size (eklass, NULL);
2011 //printf ("FIXED: %s %d %d\n", mono_type_full_name (type), eklass->blittable, string_encoding);
2013 if (eklass->blittable) {
2014 /* copy the elements */
2015 mono_mb_emit_ldloc (mb, 1);
2016 mono_mb_emit_ldloc (mb, 0);
2017 mono_mb_emit_icon (mb, len * esize);
2018 mono_mb_emit_byte (mb, CEE_PREFIX1);
2019 mono_mb_emit_byte (mb, CEE_CPBLK);
2022 guint32 label2, label3;
2024 /* Emit marshalling loop */
2025 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2026 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2027 mono_mb_emit_stloc (mb, index_var);
2030 label2 = mono_mb_get_label (mb);
2031 mono_mb_emit_ldloc (mb, index_var);
2032 mono_mb_emit_icon (mb, len);
2033 label3 = mono_mb_emit_branch (mb, CEE_BGE);
2035 /* src/dst is already set */
2037 /* Do the conversion */
2038 MonoTypeEnum t = etype->type;
2044 case MONO_TYPE_BOOLEAN:
2047 case MONO_TYPE_CHAR:
2053 mono_mb_emit_ldloc (mb, 1);
2054 mono_mb_emit_ldloc (mb, 0);
2055 if (t == MONO_TYPE_CHAR && string_encoding != MONO_NATIVE_LPWSTR) {
2057 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2058 mono_mb_emit_byte (mb, CEE_STIND_I2);
2060 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2061 mono_mb_emit_byte (mb, CEE_STIND_I1);
2065 mono_mb_emit_byte (mb, mono_type_to_ldind (etype));
2066 mono_mb_emit_byte (mb, mono_type_to_stind (etype));
2070 g_assert_not_reached ();
2075 mono_mb_emit_add_to_local (mb, 0, usize);
2076 mono_mb_emit_add_to_local (mb, 1, msize);
2078 mono_mb_emit_add_to_local (mb, 0, msize);
2079 mono_mb_emit_add_to_local (mb, 1, usize);
2083 mono_mb_emit_add_to_local (mb, index_var, 1);
2085 mono_mb_emit_branch_label (mb, CEE_BR, label2);
2087 mono_mb_patch_branch (mb, label3);
2090 *out_usize = usize * len;
2094 emit_struct_conv_full (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object,
2095 int offset_of_first_child_field, MonoMarshalNative string_encoding)
2097 MonoMarshalType *info;
2101 emit_struct_conv_full (mb, klass->parent, to_object, offset_of_first_nonstatic_field (klass), string_encoding);
2103 info = mono_marshal_load_type_info (klass);
2105 if (info->native_size == 0)
2108 if (klass->blittable) {
2109 int usize = mono_class_value_size (klass, NULL);
2110 g_assert (usize == info->native_size);
2111 mono_mb_emit_ldloc (mb, 1);
2112 mono_mb_emit_ldloc (mb, 0);
2113 mono_mb_emit_icon (mb, usize);
2114 mono_mb_emit_byte (mb, CEE_PREFIX1);
2115 mono_mb_emit_byte (mb, CEE_CPBLK);
2118 mono_mb_emit_add_to_local (mb, 0, usize);
2119 mono_mb_emit_add_to_local (mb, 1, offset_of_first_child_field);
2121 mono_mb_emit_add_to_local (mb, 0, offset_of_first_child_field);
2122 mono_mb_emit_add_to_local (mb, 1, usize);
2127 if (klass != mono_class_try_get_safehandle_class ()) {
2128 if (mono_class_is_auto_layout (klass)) {
2129 char *msg = g_strdup_printf ("Type %s which is passed to unmanaged code must have a StructLayout attribute.",
2130 mono_type_full_name (&klass->byval_arg));
2131 mono_mb_emit_exception_marshal_directive (mb, msg);
2136 for (i = 0; i < info->num_fields; i++) {
2137 MonoMarshalNative ntype;
2138 MonoMarshalConv conv;
2139 MonoType *ftype = info->fields [i].field->type;
2142 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2144 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2147 ntype = (MonoMarshalNative)mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2150 msize = klass->instance_size - info->fields [i].field->offset;
2151 usize = info->native_size - info->fields [i].offset;
2153 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2154 usize = info->fields [i + 1].offset - info->fields [i].offset;
2157 if (klass != mono_class_try_get_safehandle_class ()){
2159 * FIXME: Should really check for usize==0 and msize>0, but we apply
2160 * the layout to the managed structure as well.
2163 if (mono_class_is_explicit_layout (klass) && (usize == 0)) {
2164 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2165 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2166 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2167 "reference field at the same offset as another field.",
2168 mono_type_full_name (&klass->byval_arg));
2173 case MONO_MARSHAL_CONV_NONE: {
2176 //XXX a byref field!?!? that's not allowed! and worse, it might miss a WB
2177 g_assert (!ftype->byref);
2178 if (ftype->type == MONO_TYPE_I || ftype->type == MONO_TYPE_U) {
2179 mono_mb_emit_ldloc (mb, 1);
2180 mono_mb_emit_ldloc (mb, 0);
2181 mono_mb_emit_byte (mb, CEE_LDIND_I);
2182 mono_mb_emit_byte (mb, CEE_STIND_I);
2193 case MONO_TYPE_BOOLEAN:
2196 case MONO_TYPE_CHAR:
2202 mono_mb_emit_ldloc (mb, 1);
2203 mono_mb_emit_ldloc (mb, 0);
2204 if (t == MONO_TYPE_CHAR && ntype == MONO_NATIVE_U1 && string_encoding != MONO_NATIVE_LPWSTR) {
2206 mono_mb_emit_byte (mb, CEE_LDIND_U1);
2207 mono_mb_emit_byte (mb, CEE_STIND_I2);
2209 mono_mb_emit_byte (mb, CEE_LDIND_U2);
2210 mono_mb_emit_byte (mb, CEE_STIND_I1);
2213 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2214 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2217 case MONO_TYPE_VALUETYPE: {
2218 int src_var, dst_var;
2222 if (ftype->data.klass->enumtype) {
2223 ftype = mono_class_enum_basetype (ftype->data.klass);
2227 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2228 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2230 /* save the old src pointer */
2231 mono_mb_emit_ldloc (mb, 0);
2232 mono_mb_emit_stloc (mb, src_var);
2233 /* save the old dst pointer */
2234 mono_mb_emit_ldloc (mb, 1);
2235 mono_mb_emit_stloc (mb, dst_var);
2237 if (get_fixed_buffer_attr (info->fields [i].field, &etype, &len)) {
2238 emit_fixed_buf_conv (mb, ftype, etype, len, to_object, &usize);
2240 emit_struct_conv (mb, ftype->data.klass, to_object);
2243 /* restore the old src pointer */
2244 mono_mb_emit_ldloc (mb, src_var);
2245 mono_mb_emit_stloc (mb, 0);
2246 /* restore the old dst pointer */
2247 mono_mb_emit_ldloc (mb, dst_var);
2248 mono_mb_emit_stloc (mb, 1);
2251 case MONO_TYPE_OBJECT: {
2254 static MonoMethod *variant_clear = NULL;
2255 static MonoMethod *get_object_for_native_variant = NULL;
2258 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
2259 if (!get_object_for_native_variant)
2260 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2261 mono_mb_emit_ldloc (mb, 1);
2262 mono_mb_emit_ldloc (mb, 0);
2263 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2264 mono_mb_emit_byte (mb, CEE_STIND_REF);
2266 mono_mb_emit_ldloc (mb, 0);
2267 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2270 static MonoMethod *get_native_variant_for_object = NULL;
2272 if (!get_native_variant_for_object)
2273 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2275 mono_mb_emit_ldloc (mb, 0);
2276 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2277 mono_mb_emit_ldloc (mb, 1);
2278 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2281 char *msg = g_strdup_printf ("COM support was disabled at compilation time.");
2282 mono_mb_emit_exception_marshal_directive (mb, msg);
2288 g_warning ("marshaling type %02x not implemented", ftype->type);
2289 g_assert_not_reached ();
2294 int src_var, dst_var;
2296 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2297 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2299 /* save the old src pointer */
2300 mono_mb_emit_ldloc (mb, 0);
2301 mono_mb_emit_stloc (mb, src_var);
2302 /* save the old dst pointer */
2303 mono_mb_emit_ldloc (mb, 1);
2304 mono_mb_emit_stloc (mb, dst_var);
2307 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2309 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2311 /* restore the old src pointer */
2312 mono_mb_emit_ldloc (mb, src_var);
2313 mono_mb_emit_stloc (mb, 0);
2314 /* restore the old dst pointer */
2315 mono_mb_emit_ldloc (mb, dst_var);
2316 mono_mb_emit_stloc (mb, 1);
2321 mono_mb_emit_add_to_local (mb, 0, usize);
2322 mono_mb_emit_add_to_local (mb, 1, msize);
2324 mono_mb_emit_add_to_local (mb, 0, msize);
2325 mono_mb_emit_add_to_local (mb, 1, usize);
2331 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2333 emit_struct_conv_full (mb, klass, to_object, 0, (MonoMarshalNative)-1);
2337 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2339 /* Call DestroyStructure */
2340 /* FIXME: Only do this if needed */
2341 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2342 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2343 mono_mb_emit_ldloc (mb, struct_var);
2344 mono_mb_emit_icall (mb, mono_struct_delete_old);
2348 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2350 int pos_noabort, pos_noex;
2352 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2353 mono_mb_emit_byte (mb, CEE_MONO_LDPTR_INT_REQ_FLAG);
2354 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2355 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2357 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2358 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2360 mono_mb_emit_icall (mb, checkpoint_func);
2361 /* Throw the exception returned by the checkpoint function, if any */
2362 mono_mb_emit_byte (mb, CEE_DUP);
2363 pos_noex = mono_mb_emit_branch (mb, CEE_BRFALSE);
2364 mono_mb_emit_byte (mb, CEE_THROW);
2365 mono_mb_patch_branch (mb, pos_noex);
2366 mono_mb_emit_byte (mb, CEE_POP);
2368 mono_mb_patch_branch (mb, pos_noabort);
2372 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2374 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2377 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2381 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2383 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint_noraise);
2387 mono_marshal_emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2389 emit_thread_interrupt_checkpoint (mb);
2393 mono_marshal_emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2395 emit_thread_force_interrupt_checkpoint (mb);
2398 #endif /* DISABLE_JIT */
2400 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
2401 static MonoAsyncResult *
2402 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2405 MonoMulticastDelegate *mcast_delegate;
2409 g_assert (delegate);
2410 mcast_delegate = (MonoMulticastDelegate *) delegate;
2411 if (mcast_delegate->delegates != NULL) {
2412 mono_set_pending_exception (mono_get_exception_argument (NULL, "The delegate must have only one target"));
2416 #ifndef DISABLE_REMOTING
2417 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
2418 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2419 if (!mono_class_is_contextbound (tp->remote_class->proxy_class) || tp->rp->context != (MonoObject *) mono_context_get ()) {
2420 /* If the target is a proxy, make a direct call. Is proxy's work
2421 // to make the call asynchronous.
2423 MonoMethodMessage *msg;
2424 MonoDelegate *async_callback;
2426 MonoAsyncResult *ares;
2428 MonoArray *out_args;
2429 method = delegate->method;
2431 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state, &error);
2432 if (mono_error_set_pending_exception (&error))
2434 ares = mono_async_result_new (mono_domain_get (), NULL, state, NULL, NULL, &error);
2435 if (mono_error_set_pending_exception (&error))
2437 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2438 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2439 MONO_OBJECT_SETREF (msg, async_result, ares);
2440 msg->call_type = CallType_BeginInvoke;
2443 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
2444 if (!mono_error_ok (&error)) {
2445 mono_error_set_pending_exception (&error);
2449 mono_set_pending_exception ((MonoException *) exc);
2455 klass = delegate->object.vtable->klass;
2457 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2459 method = mono_get_delegate_invoke (klass);
2462 MonoAsyncResult *result = mono_threadpool_begin_invoke (mono_domain_get (), (MonoObject*) delegate, method, params, &error);
2463 mono_error_set_pending_exception (&error);
2470 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2472 int i, params_var, tmp_var;
2474 /* allocate local (pointer) *params[] */
2475 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2476 /* allocate local (pointer) tmp */
2477 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2479 /* alloate space on stack to store an array of pointers to the arguments */
2480 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2481 mono_mb_emit_byte (mb, CEE_PREFIX1);
2482 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2483 mono_mb_emit_stloc (mb, params_var);
2486 mono_mb_emit_ldloc (mb, params_var);
2487 mono_mb_emit_stloc (mb, tmp_var);
2489 if (save_this && sig->hasthis) {
2490 mono_mb_emit_ldloc (mb, tmp_var);
2491 mono_mb_emit_ldarg_addr (mb, 0);
2492 mono_mb_emit_byte (mb, CEE_STIND_I);
2493 /* tmp = tmp + sizeof (gpointer) */
2494 if (sig->param_count)
2495 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2499 for (i = 0; i < sig->param_count; i++) {
2500 mono_mb_emit_ldloc (mb, tmp_var);
2501 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2502 mono_mb_emit_byte (mb, CEE_STIND_I);
2503 /* tmp = tmp + sizeof (gpointer) */
2504 if (i < (sig->param_count - 1))
2505 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2511 #endif /* DISABLE_JIT */
2514 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2518 GString *res = g_string_new ("");
2521 g_string_append (res, prefix);
2522 g_string_append_c (res, '_');
2525 mono_type_get_desc (res, sig->ret, FALSE);
2528 g_string_append (res, "__this__");
2530 for (i = 0; i < sig->param_count; ++i) {
2531 g_string_append_c (res, '_');
2532 mono_type_get_desc (res, sig->params [i], FALSE);
2535 g_string_free (res, FALSE);
2540 * mono_marshal_get_string_encoding:
2542 * Return the string encoding which should be used for a given parameter.
2544 static MonoMarshalNative
2545 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2547 /* First try the parameter marshal info */
2549 if (spec->native == MONO_NATIVE_LPARRAY) {
2550 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2551 return spec->data.array_data.elem_type;
2554 return spec->native;
2558 return MONO_NATIVE_LPSTR;
2560 /* Then try the method level marshal info */
2561 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2562 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2563 return MONO_NATIVE_LPSTR;
2564 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2565 return MONO_NATIVE_LPWSTR;
2566 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2568 return MONO_NATIVE_LPWSTR;
2570 return MONO_NATIVE_LPSTR;
2573 return MONO_NATIVE_LPSTR;
2577 static MonoMarshalConv
2578 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2580 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2583 case MONO_NATIVE_LPWSTR:
2584 return MONO_MARSHAL_CONV_STR_LPWSTR;
2585 case MONO_NATIVE_LPSTR:
2586 case MONO_NATIVE_VBBYREFSTR:
2587 return MONO_MARSHAL_CONV_STR_LPSTR;
2588 case MONO_NATIVE_LPTSTR:
2589 return MONO_MARSHAL_CONV_STR_LPTSTR;
2590 case MONO_NATIVE_BSTR:
2591 return MONO_MARSHAL_CONV_STR_BSTR;
2592 case MONO_NATIVE_UTF8STR:
2593 return MONO_MARSHAL_CONV_STR_UTF8STR;
2595 return MONO_MARSHAL_CONV_INVALID;
2599 static MonoMarshalConv
2600 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2602 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2605 case MONO_NATIVE_LPWSTR:
2606 return MONO_MARSHAL_CONV_SB_LPWSTR;
2607 case MONO_NATIVE_LPSTR:
2608 return MONO_MARSHAL_CONV_SB_LPSTR;
2609 case MONO_NATIVE_UTF8STR:
2610 return MONO_MARSHAL_CONV_SB_UTF8STR;
2611 case MONO_NATIVE_LPTSTR:
2612 return MONO_MARSHAL_CONV_SB_LPTSTR;
2614 return MONO_MARSHAL_CONV_INVALID;
2618 static MonoMarshalConv
2619 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2621 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2626 case MONO_NATIVE_LPWSTR:
2628 return MONO_MARSHAL_CONV_LPWSTR_STR;
2629 case MONO_NATIVE_UTF8STR:
2630 return MONO_MARSHAL_CONV_UTF8STR_STR;
2631 case MONO_NATIVE_LPSTR:
2632 case MONO_NATIVE_VBBYREFSTR:
2633 return MONO_MARSHAL_CONV_LPSTR_STR;
2634 case MONO_NATIVE_LPTSTR:
2638 return MONO_MARSHAL_CONV_LPTSTR_STR;
2639 case MONO_NATIVE_BSTR:
2640 return MONO_MARSHAL_CONV_BSTR_STR;
2642 return MONO_MARSHAL_CONV_INVALID;
2646 static MonoMarshalConv
2647 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2649 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2654 case MONO_NATIVE_LPWSTR:
2656 * mono_string_builder_to_utf16 does not allocate a
2657 * new buffer, so no need to free it.
2660 return MONO_MARSHAL_CONV_LPWSTR_SB;
2661 case MONO_NATIVE_UTF8STR:
2662 return MONO_MARSHAL_CONV_UTF8STR_SB;
2663 case MONO_NATIVE_LPSTR:
2664 return MONO_MARSHAL_CONV_LPSTR_SB;
2666 case MONO_NATIVE_LPTSTR:
2667 return MONO_MARSHAL_CONV_LPTSTR_SB;
2670 return MONO_MARSHAL_CONV_INVALID;
2675 * Return whenever a field of a native structure or an array member needs to
2679 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2681 MonoMarshalNative encoding;
2684 case MONO_TYPE_VALUETYPE:
2685 /* FIXME: Optimize this */
2687 case MONO_TYPE_OBJECT:
2688 case MONO_TYPE_CLASS:
2689 if (t->data.klass == mono_defaults.stringbuilder_class) {
2691 mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2695 case MONO_TYPE_STRING:
2696 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2697 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2704 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
2707 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2710 mono_marshal_lock ();
2713 g_hash_table_new (hash_func, equal_func);
2714 mono_memory_barrier ();
2717 mono_marshal_unlock ();
2723 mono_marshal_get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
2725 return get_cache (var, hash_func, equal_func);
2729 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2733 mono_marshal_lock ();
2734 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2735 mono_marshal_unlock ();
2742 * Create a MonoMethod from MB, set INFO as wrapper info.
2745 mono_mb_create (MonoMethodBuilder *mb, MonoMethodSignature *sig,
2746 int max_stack, WrapperInfo *info)
2750 res = mono_mb_create_method (mb, sig, max_stack);
2752 mono_marshal_set_wrapper_info (res, info);
2756 /* Create the method from the builder and place it in the cache */
2758 mono_mb_create_and_cache_full (GHashTable *cache, gpointer key,
2759 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2760 int max_stack, WrapperInfo *info, gboolean *out_found)
2767 mono_marshal_lock ();
2768 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2769 mono_marshal_unlock ();
2772 newm = mono_mb_create_method (mb, sig, max_stack);
2773 mono_marshal_lock ();
2774 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2777 g_hash_table_insert (cache, key, res);
2778 mono_marshal_set_wrapper_info (res, info);
2779 mono_marshal_unlock ();
2783 mono_marshal_unlock ();
2784 mono_free_method (newm);
2792 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2793 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2796 return mono_mb_create_and_cache_full (cache, key, mb, sig, max_stack, NULL, NULL);
2800 * mono_marshal_method_from_wrapper:
2803 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2806 int wrapper_type = wrapper->wrapper_type;
2809 if (wrapper_type == MONO_WRAPPER_NONE || wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2812 info = mono_marshal_get_wrapper_info (wrapper);
2814 switch (wrapper_type) {
2815 case MONO_WRAPPER_REMOTING_INVOKE:
2816 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK:
2817 case MONO_WRAPPER_XDOMAIN_INVOKE:
2818 m = info->d.remoting.method;
2819 if (wrapper->is_inflated) {
2823 * A method cannot be inflated and a wrapper at the same time, so the wrapper info
2824 * contains an uninflated method.
2826 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2827 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2831 case MONO_WRAPPER_SYNCHRONIZED:
2832 m = info->d.synchronized.method;
2833 if (wrapper->is_inflated) {
2836 result = mono_class_inflate_generic_method_checked (m, mono_method_get_context (wrapper), &error);
2837 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2841 case MONO_WRAPPER_UNBOX:
2842 return info->d.unbox.method;
2843 case MONO_WRAPPER_MANAGED_TO_NATIVE:
2844 if (info && (info->subtype == WRAPPER_SUBTYPE_NONE || info->subtype == WRAPPER_SUBTYPE_NATIVE_FUNC_AOT || info->subtype == WRAPPER_SUBTYPE_PINVOKE))
2845 return info->d.managed_to_native.method;
2848 case MONO_WRAPPER_RUNTIME_INVOKE:
2849 if (info && (info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT || info->subtype == WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL))
2850 return info->d.runtime_invoke.method;
2853 case MONO_WRAPPER_DELEGATE_INVOKE:
2855 return info->d.delegate_invoke.method;
2864 * mono_marshal_get_wrapper_info:
2866 * Retrieve the WrapperInfo structure associated with WRAPPER.
2869 mono_marshal_get_wrapper_info (MonoMethod *wrapper)
2871 g_assert (wrapper->wrapper_type);
2873 return (WrapperInfo *)mono_method_get_wrapper_data (wrapper, 1);
2877 * mono_marshal_set_wrapper_info:
2879 * Set the WrapperInfo structure associated with the wrapper
2880 * method METHOD to INFO.
2883 mono_marshal_set_wrapper_info (MonoMethod *method, WrapperInfo *info)
2887 if (method->wrapper_type == MONO_WRAPPER_NONE || method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
2890 datav = (void **)((MonoMethodWrapper *)method)->method_data;
2895 mono_wrapper_info_create (MonoMethodBuilder *mb, WrapperSubtype subtype)
2899 info = (WrapperInfo *)mono_image_alloc0 (mb->method->klass->image, sizeof (WrapperInfo));
2900 info->subtype = subtype;
2905 * get_wrapper_target_class:
2907 * Return the class where a wrapper method should be placed.
2910 get_wrapper_target_class (MonoImage *image)
2917 * - can't put all wrappers into an mscorlib class, because they reference
2918 * metadata (signature) so they should be put into the same image as the
2919 * method they wrap, so they are unloaded together.
2920 * - putting them into a class with a type initalizer could cause the
2921 * initializer to be executed which can be a problem if the wrappers are
2923 * - putting them into an inflated class can cause problems if the the
2924 * class is deleted because it references an image which is unloaded.
2925 * To avoid these problems, we put the wrappers into the <Module> class of
2928 if (image_is_dynamic (image)) {
2929 klass = ((MonoDynamicImage*)image)->wrappers_type;
2931 klass = mono_class_get_checked (image, mono_metadata_make_token (MONO_TABLE_TYPEDEF, 1), &error);
2932 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2940 * Wrappers for generic methods should be instances of generic wrapper methods, i.e .the wrapper for Sort<int> should be
2941 * an instance of the wrapper for Sort<T>. This is required for full-aot to work.
2945 * check_generic_wrapper_cache:
2947 * Check CACHE for the wrapper of the generic instance ORIG_METHOD, and return it if it is found.
2948 * KEY should be the key for ORIG_METHOD in the cache, while DEF_KEY should be the key of its
2949 * generic method definition.
2952 check_generic_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, gpointer key, gpointer def_key)
2955 MonoMethod *inst, *def;
2956 MonoGenericContext *ctx;
2958 g_assert (orig_method->is_inflated);
2959 ctx = mono_method_get_context (orig_method);
2962 * Look for the instance
2964 res = mono_marshal_find_in_cache (cache, key);
2969 * Look for the definition
2971 def = mono_marshal_find_in_cache (cache, def_key);
2974 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
2975 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2977 mono_memory_barrier ();
2978 mono_marshal_lock ();
2979 res = (MonoMethod *)g_hash_table_lookup (cache, key);
2981 g_hash_table_insert (cache, key, inst);
2984 mono_marshal_unlock ();
2991 cache_generic_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx, gpointer key)
2994 MonoMethod *inst, *res;
2997 * We use the same cache for the generic definition and the instances.
2999 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3000 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3001 mono_memory_barrier ();
3002 mono_marshal_lock ();
3003 res = (MonoMethod *)g_hash_table_lookup (cache, key);
3005 g_hash_table_insert (cache, key, inst);
3008 mono_marshal_unlock ();
3013 check_generic_delegate_wrapper_cache (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def_method, MonoGenericContext *ctx)
3017 MonoMethod *inst, *def;
3020 * Look for the instance
3022 res = mono_marshal_find_in_cache (cache, orig_method->klass);
3027 * Look for the definition
3029 def = mono_marshal_find_in_cache (cache, def_method->klass);
3031 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3032 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3035 mono_memory_barrier ();
3036 mono_marshal_lock ();
3037 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3039 g_hash_table_insert (cache, orig_method->klass, inst);
3042 mono_marshal_unlock ();
3049 cache_generic_delegate_wrapper (GHashTable *cache, MonoMethod *orig_method, MonoMethod *def, MonoGenericContext *ctx)
3052 MonoMethod *inst, *res;
3053 WrapperInfo *ginfo, *info;
3056 * We use the same cache for the generic definition and the instances.
3058 inst = mono_class_inflate_generic_method_checked (def, ctx, &error);
3059 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3061 ginfo = mono_marshal_get_wrapper_info (def);
3063 info = (WrapperInfo *)mono_image_alloc0 (def->klass->image, sizeof (WrapperInfo));
3064 info->subtype = ginfo->subtype;
3065 if (info->subtype == WRAPPER_SUBTYPE_NONE) {
3066 info->d.delegate_invoke.method = mono_class_inflate_generic_method_checked (ginfo->d.delegate_invoke.method, ctx, &error);
3067 mono_error_assert_ok (&error);
3071 mono_memory_barrier ();
3072 mono_marshal_lock ();
3073 res = (MonoMethod *)g_hash_table_lookup (cache, orig_method->klass);
3075 g_hash_table_insert (cache, orig_method->klass, inst);
3078 mono_marshal_unlock ();
3083 * mono_marshal_get_delegate_begin_invoke:
3086 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
3088 MonoMethodSignature *sig;
3089 MonoMethodBuilder *mb;
3094 MonoGenericContext *ctx = NULL;
3095 MonoMethod *orig_method = NULL;
3097 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3098 !strcmp (method->name, "BeginInvoke"));
3101 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3103 if (method->is_inflated) {
3104 orig_method = method;
3105 ctx = &((MonoMethodInflated*)method)->context;
3106 method = ((MonoMethodInflated*)method)->declaring;
3109 sig = mono_signature_no_pinvoke (method);
3115 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_begin_invoke_cache, mono_aligned_addr_hash, NULL);
3116 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3120 cache = get_cache (&method->klass->image->wrapper_caches.delegate_begin_invoke_cache,
3121 (GHashFunc)mono_signature_hash,
3122 (GCompareFunc)mono_metadata_signature_equal);
3123 if ((res = mono_marshal_find_in_cache (cache, sig)))
3127 g_assert (sig->hasthis);
3129 name = mono_signature_to_name (sig, "begin_invoke");
3131 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3133 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
3137 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3139 mono_mb_emit_ldarg (mb, 0);
3140 mono_mb_emit_ldloc (mb, params_var);
3141 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
3142 mono_mb_emit_byte (mb, CEE_RET);
3147 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3148 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3150 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
3157 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
3159 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
3162 MonoDomain *domain = mono_domain_get ();
3163 MonoAsyncResult *ares;
3164 MonoMethod *method = NULL;
3165 MonoMethodSignature *sig;
3166 MonoMethodMessage *msg;
3167 MonoObject *res, *exc;
3168 MonoArray *out_args;
3171 g_assert (delegate);
3173 if (!delegate->method_info) {
3174 g_assert (delegate->method);
3175 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, delegate->method, NULL, &error);
3176 if (!mono_error_ok (&error)) {
3177 mono_error_set_pending_exception (&error);
3180 MONO_OBJECT_SETREF (delegate, method_info, rm);
3183 if (!delegate->method_info || !delegate->method_info->method)
3184 g_assert_not_reached ();
3186 klass = delegate->object.vtable->klass;
3188 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3189 g_assert (method != NULL);
3191 sig = mono_signature_no_pinvoke (method);
3193 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
3194 if (mono_error_set_pending_exception (&error))
3197 ares = (MonoAsyncResult *)mono_array_get (msg->args, gpointer, sig->param_count - 1);
3199 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."));
3203 if (ares->async_delegate != (MonoObject*)delegate) {
3204 mono_set_pending_exception (mono_get_exception_invalid_operation (
3205 "The IAsyncResult object provided does not match this delegate."));
3209 #ifndef DISABLE_REMOTING
3210 if (delegate->target && mono_object_is_transparent_proxy (delegate->target)) {
3211 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
3212 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
3213 if (!mono_error_ok (&error)) {
3214 mono_error_set_pending_exception (&error);
3217 mono_message_init (domain, msg, delegate->method_info, NULL, &error);
3218 if (mono_error_set_pending_exception (&error))
3220 msg->call_type = CallType_EndInvoke;
3221 MONO_OBJECT_SETREF (msg, async_result, ares);
3222 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args, &error);
3223 if (!mono_error_ok (&error)) {
3224 mono_error_set_pending_exception (&error);
3230 res = mono_threadpool_end_invoke (ares, &out_args, &exc, &error);
3231 if (mono_error_set_pending_exception (&error))
3236 if (((MonoException*)exc)->stack_trace) {
3237 MonoError inner_error;
3238 char *strace = mono_string_to_utf8_checked (((MonoException*)exc)->stack_trace, &inner_error);
3239 if (is_ok (&inner_error)) {
3241 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
3243 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
3246 mono_error_cleanup (&inner_error); /* no stack trace, but at least throw the original exception */
3248 mono_set_pending_exception ((MonoException*)exc);
3251 mono_method_return_message_restore (method, params, out_args, &error);
3252 mono_error_set_pending_exception (&error);
3259 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
3261 MonoType *t = mono_type_get_underlying_type (return_type);
3263 if (return_type->byref)
3264 return_type = &mono_defaults.int_class->byval_arg;
3267 case MONO_TYPE_VOID:
3268 g_assert_not_reached ();
3271 case MONO_TYPE_STRING:
3272 case MONO_TYPE_CLASS:
3273 case MONO_TYPE_OBJECT:
3274 case MONO_TYPE_ARRAY:
3275 case MONO_TYPE_SZARRAY:
3279 case MONO_TYPE_BOOLEAN:
3282 case MONO_TYPE_CHAR:
3292 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
3293 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
3295 case MONO_TYPE_GENERICINST:
3296 if (!mono_type_generic_inst_is_valuetype (t))
3299 case MONO_TYPE_VALUETYPE: {
3300 MonoClass *klass = mono_class_from_mono_type (return_type);
3301 mono_mb_emit_op (mb, CEE_UNBOX, klass);
3302 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
3306 case MONO_TYPE_MVAR: {
3307 MonoClass *klass = mono_class_from_mono_type (return_type);
3308 mono_mb_emit_op (mb, CEE_UNBOX_ANY, klass);
3312 g_warning ("type 0x%x not handled", return_type->type);
3313 g_assert_not_reached ();
3316 mono_mb_emit_byte (mb, CEE_RET);
3319 #endif /* DISABLE_JIT */
3322 * mono_marshal_get_delegate_end_invoke:
3325 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
3327 MonoMethodSignature *sig;
3328 MonoMethodBuilder *mb;
3333 MonoGenericContext *ctx = NULL;
3334 MonoMethod *orig_method = NULL;
3336 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3337 !strcmp (method->name, "EndInvoke"));
3340 * For generic delegates, create a generic wrapper, and returns an instance to help AOT.
3342 if (method->is_inflated) {
3343 orig_method = method;
3344 ctx = &((MonoMethodInflated*)method)->context;
3345 method = ((MonoMethodInflated*)method)->declaring;
3348 sig = mono_signature_no_pinvoke (method);
3354 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_end_invoke_cache, mono_aligned_addr_hash, NULL);
3355 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3359 cache = get_cache (&method->klass->image->wrapper_caches.delegate_end_invoke_cache,
3360 (GHashFunc)mono_signature_hash,
3361 (GCompareFunc)mono_metadata_signature_equal);
3362 if ((res = mono_marshal_find_in_cache (cache, sig)))
3366 g_assert (sig->hasthis);
3368 name = mono_signature_to_name (sig, "end_invoke");
3370 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3372 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_END_INVOKE);
3376 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
3378 mono_mb_emit_ldarg (mb, 0);
3379 mono_mb_emit_ldloc (mb, params_var);
3380 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
3382 if (sig->ret->type == MONO_TYPE_VOID) {
3383 mono_mb_emit_byte (mb, CEE_POP);
3384 mono_mb_emit_byte (mb, CEE_RET);
3386 mono_mb_emit_restore_result (mb, sig->ret);
3391 def = mono_mb_create_and_cache (cache, method->klass, mb, sig, sig->param_count + 16);
3392 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3394 res = mono_mb_create_and_cache (cache, sig,
3395 mb, sig, sig->param_count + 16);
3404 MonoMethodSignature *sig;
3406 } SignaturePointerPair;
3409 signature_pointer_pair_hash (gconstpointer data)
3411 SignaturePointerPair *pair = (SignaturePointerPair*)data;
3413 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->pointer);
3417 signature_pointer_pair_equal (gconstpointer data1, gconstpointer data2)
3419 SignaturePointerPair *pair1 = (SignaturePointerPair*) data1, *pair2 = (SignaturePointerPair*) data2;
3420 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->pointer == pair2->pointer);
3424 signature_pointer_pair_matches_pointer (gpointer key, gpointer value, gpointer user_data)
3426 SignaturePointerPair *pair = (SignaturePointerPair*)key;
3428 return pair->pointer == user_data;
3432 free_signature_pointer_pair (SignaturePointerPair *pair)
3438 mono_marshal_get_delegate_invoke_internal (MonoMethod *method, gboolean callvirt, gboolean static_method_with_first_arg_bound, MonoMethod *target_method)
3440 MonoMethodSignature *sig, *static_sig, *invoke_sig;
3442 MonoMethodBuilder *mb;
3445 gpointer cache_key = NULL;
3446 SignaturePointerPair key = { NULL, NULL };
3447 SignaturePointerPair *new_key;
3448 int local_i, local_len, local_delegates, local_d, local_target, local_res;
3449 int pos0, pos1, pos2;
3451 MonoClass *target_class = NULL;
3452 gboolean closed_over_null = FALSE;
3453 MonoGenericContext *ctx = NULL;
3454 MonoGenericContainer *container = NULL;
3455 MonoMethod *orig_method = method;
3457 WrapperSubtype subtype = WRAPPER_SUBTYPE_NONE;
3461 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
3462 !strcmp (method->name, "Invoke"));
3464 invoke_sig = sig = mono_signature_no_pinvoke (method);
3467 * If the delegate target is null, and the target method is not static, a virtual
3468 * call is made to that method with the first delegate argument as this. This is
3469 * a non-documented .NET feature.
3472 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_VIRTUAL;
3473 if (target_method->is_inflated) {
3475 MonoType *target_type;
3477 g_assert (method->signature->hasthis);
3478 target_type = mono_class_inflate_generic_type_checked (method->signature->params [0],
3479 mono_method_get_context (method), &error);
3480 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
3481 target_class = mono_class_from_mono_type (target_type);
3483 target_class = target_method->klass;
3486 closed_over_null = sig->param_count == mono_method_signature (target_method)->param_count;
3489 if (static_method_with_first_arg_bound) {
3490 subtype = WRAPPER_SUBTYPE_DELEGATE_INVOKE_BOUND;
3491 g_assert (!callvirt);
3492 invoke_sig = mono_method_signature (target_method);
3496 * For generic delegates, create a generic wrapper, and return an instance to help AOT.
3498 if (method->is_inflated && subtype == WRAPPER_SUBTYPE_NONE) {
3499 ctx = &((MonoMethodInflated*)method)->context;
3500 method = ((MonoMethodInflated*)method)->declaring;
3502 container = mono_method_get_generic_container (method);
3504 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
3505 g_assert (container);
3507 invoke_sig = sig = mono_signature_no_pinvoke (method);
3514 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.delegate_invoke_cache, mono_aligned_addr_hash, NULL);
3515 res = check_generic_delegate_wrapper_cache (cache, orig_method, method, ctx);
3518 cache_key = method->klass;
3519 } else if (static_method_with_first_arg_bound) {
3520 cache = get_cache (&method->klass->image->delegate_bound_static_invoke_cache,
3521 (GHashFunc)mono_signature_hash,
3522 (GCompareFunc)mono_metadata_signature_equal);
3524 * The wrapper is based on sig+invoke_sig, but sig can be derived from invoke_sig.
3526 res = mono_marshal_find_in_cache (cache, invoke_sig);
3529 cache_key = invoke_sig;
3530 } else if (callvirt) {
3531 GHashTable **cache_ptr;
3533 cache_ptr = &mono_method_get_wrapper_cache (method)->delegate_abstract_invoke_cache;
3535 /* We need to cache the signature+method pair */
3536 mono_marshal_lock ();
3538 *cache_ptr = g_hash_table_new_full (signature_pointer_pair_hash, (GEqualFunc)signature_pointer_pair_equal, (GDestroyNotify)free_signature_pointer_pair, NULL);
3540 key.sig = invoke_sig;
3541 key.pointer = target_method;
3542 res = (MonoMethod *)g_hash_table_lookup (cache, &key);
3543 mono_marshal_unlock ();
3547 // Inflated methods should not be in this cache because it's not stored on the imageset.
3548 g_assert (!method->is_inflated);
3549 cache = get_cache (&method->klass->image->wrapper_caches.delegate_invoke_cache,
3550 (GHashFunc)mono_signature_hash,
3551 (GCompareFunc)mono_metadata_signature_equal);
3552 res = mono_marshal_find_in_cache (cache, sig);
3558 static_sig = mono_metadata_signature_dup_full (method->klass->image, sig);
3559 static_sig->hasthis = 0;
3560 if (!static_method_with_first_arg_bound)
3561 invoke_sig = static_sig;
3563 if (static_method_with_first_arg_bound)
3564 name = mono_signature_to_name (invoke_sig, "invoke_bound");
3565 else if (closed_over_null)
3566 name = mono_signature_to_name (invoke_sig, "invoke_closed_over_null");
3568 name = mono_signature_to_name (invoke_sig, "invoke_callvirt");
3570 name = mono_signature_to_name (invoke_sig, "invoke");
3572 mb = mono_mb_new (method->klass, name, MONO_WRAPPER_DELEGATE_INVOKE);
3574 mb = mono_mb_new (get_wrapper_target_class (method->klass->image), name, MONO_WRAPPER_DELEGATE_INVOKE);
3578 void_ret = sig->ret->type == MONO_TYPE_VOID && !method->string_ctor;
3580 /* allocate local 0 (object) */
3581 local_i = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3582 local_len = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3583 local_delegates = mono_mb_add_local (mb, &mono_defaults.array_class->byval_arg);
3584 local_d = mono_mb_add_local (mb, &mono_defaults.multicastdelegate_class->byval_arg);
3585 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3588 local_res = mono_mb_add_local (mb, &mono_class_from_mono_type (sig->ret)->byval_arg);
3590 g_assert (sig->hasthis);
3593 * {type: sig->ret} res;
3594 * if (delegates == null) {
3595 * return this.<target> ( args .. );
3597 * int i = 0, len = this.delegates.Length;
3599 * res = this.delegates [i].Invoke ( args .. );
3600 * } while (++i < len);
3605 /* this wrapper can be used in unmanaged-managed transitions */
3606 emit_thread_interrupt_checkpoint (mb);
3608 /* delegates = this.delegates */
3609 mono_mb_emit_ldarg (mb, 0);
3610 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoMulticastDelegate, delegates));
3611 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3612 mono_mb_emit_stloc (mb, local_delegates);
3614 /* if (delegates == null) */
3615 mono_mb_emit_ldloc (mb, local_delegates);
3616 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
3618 /* return target.<target_method|method_ptr> ( args .. ); */
3620 /* target = d.target; */
3621 mono_mb_emit_ldarg (mb, 0);
3622 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, target));
3623 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3624 mono_mb_emit_stloc (mb, local_target);
3626 /*static methods with bound first arg can have null target and still be bound*/
3627 if (!static_method_with_first_arg_bound) {
3628 /* if target != null */
3629 mono_mb_emit_ldloc (mb, local_target);
3630 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
3632 /* then call this->method_ptr nonstatic */
3635 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
3637 mono_mb_emit_ldloc (mb, local_target);
3638 for (i = 0; i < sig->param_count; ++i)
3639 mono_mb_emit_ldarg (mb, i + 1);
3640 mono_mb_emit_ldarg (mb, 0);
3641 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3642 mono_mb_emit_byte (mb, CEE_LDIND_I);
3643 mono_mb_emit_ldarg (mb, 0);
3644 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3645 mono_mb_emit_byte (mb, CEE_LDIND_I);
3646 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3647 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, sig);
3648 mono_mb_emit_byte (mb, CEE_RET);
3651 /* else [target == null] call this->method_ptr static */
3652 mono_mb_patch_branch (mb, pos0);
3656 if (!closed_over_null) {
3657 if (target_class->valuetype) {
3658 mono_mb_emit_ldarg (mb, 1);
3659 for (i = 1; i < sig->param_count; ++i)
3660 mono_mb_emit_ldarg (mb, i + 1);
3661 mono_mb_emit_op (mb, CEE_CALL, target_method);
3663 mono_mb_emit_ldarg (mb, 1);
3664 mono_mb_emit_op (mb, CEE_CASTCLASS, target_class);
3665 for (i = 1; i < sig->param_count; ++i)
3666 mono_mb_emit_ldarg (mb, i + 1);
3667 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
3670 mono_mb_emit_byte (mb, CEE_LDNULL);
3671 for (i = 0; i < sig->param_count; ++i)
3672 mono_mb_emit_ldarg (mb, i + 1);
3673 mono_mb_emit_op (mb, CEE_CALL, target_method);
3676 if (static_method_with_first_arg_bound) {
3677 mono_mb_emit_ldloc (mb, local_target);
3678 if (!MONO_TYPE_IS_REFERENCE (invoke_sig->params[0]))
3679 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (invoke_sig->params[0]));
3681 for (i = 0; i < sig->param_count; ++i)
3682 mono_mb_emit_ldarg (mb, i + 1);
3683 mono_mb_emit_ldarg (mb, 0);
3684 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, extra_arg));
3685 mono_mb_emit_byte (mb, CEE_LDIND_I);
3686 mono_mb_emit_ldarg (mb, 0);
3687 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr));
3688 mono_mb_emit_byte (mb, CEE_LDIND_I);
3689 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
3690 mono_mb_emit_op (mb, CEE_MONO_CALLI_EXTRA_ARG, invoke_sig);
3693 mono_mb_emit_byte (mb, CEE_RET);
3695 /* else [delegates != null] */
3696 mono_mb_patch_branch (mb, pos2);
3698 /* len = delegates.Length; */
3699 mono_mb_emit_ldloc (mb, local_delegates);
3700 mono_mb_emit_byte (mb, CEE_LDLEN);
3701 mono_mb_emit_byte (mb, CEE_CONV_I4);
3702 mono_mb_emit_stloc (mb, local_len);
3705 mono_mb_emit_icon (mb, 0);
3706 mono_mb_emit_stloc (mb, local_i);
3708 pos1 = mono_mb_get_label (mb);
3710 /* d = delegates [i]; */
3711 mono_mb_emit_ldloc (mb, local_delegates);
3712 mono_mb_emit_ldloc (mb, local_i);
3713 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3714 mono_mb_emit_stloc (mb, local_d);
3716 /* res = d.Invoke ( args .. ); */
3717 mono_mb_emit_ldloc (mb, local_d);
3718 for (i = 0; i < sig->param_count; i++)
3719 mono_mb_emit_ldarg (mb, i + 1);
3721 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3724 mono_mb_emit_op (mb, CEE_CALLVIRT, mono_class_inflate_generic_method_checked (method, &container->context, &error));
3725 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
3728 mono_mb_emit_stloc (mb, local_res);
3731 mono_mb_emit_add_to_local (mb, local_i, 1);
3734 mono_mb_emit_ldloc (mb, local_i);
3735 mono_mb_emit_ldloc (mb, local_len);
3736 mono_mb_emit_branch_label (mb, CEE_BLT, pos1);
3740 mono_mb_emit_ldloc (mb, local_res);
3741 mono_mb_emit_byte (mb, CEE_RET);
3743 mb->skip_visibility = 1;
3744 #endif /* DISABLE_JIT */
3746 info = mono_wrapper_info_create (mb, subtype);
3747 info->d.delegate_invoke.method = method;
3752 def = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3753 res = cache_generic_delegate_wrapper (cache, orig_method, def, ctx);
3754 } else if (callvirt) {
3755 new_key = g_new0 (SignaturePointerPair, 1);
3758 res = mono_mb_create_and_cache_full (cache, new_key, mb, sig, sig->param_count + 16, info, &found);
3762 res = mono_mb_create_and_cache_full (cache, cache_key, mb, sig, sig->param_count + 16, info, NULL);
3766 /* mono_method_print_code (res); */
3772 * mono_marshal_get_delegate_invoke:
3773 * The returned method invokes all methods in a multicast delegate.
3776 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
3778 gboolean callvirt = FALSE;
3779 gboolean static_method_with_first_arg_bound = FALSE;
3780 MonoMethod *target_method = NULL;
3781 MonoMethodSignature *sig;
3783 sig = mono_signature_no_pinvoke (method);
3785 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
3787 target_method = del->method;
3790 if (del && del->method && mono_method_signature (del->method)->param_count == sig->param_count + 1 && (del->method->flags & METHOD_ATTRIBUTE_STATIC)) {
3791 static_method_with_first_arg_bound = TRUE;
3792 target_method = del->method;
3795 return mono_marshal_get_delegate_invoke_internal (method, callvirt, static_method_with_first_arg_bound, target_method);
3799 MonoMethodSignature *ctor_sig;
3800 MonoMethodSignature *sig;
3803 /* protected by the marshal lock, contains CtorSigPair pointers */
3804 static GSList *strsig_list = NULL;
3806 static MonoMethodSignature *
3807 lookup_string_ctor_signature (MonoMethodSignature *sig)
3809 MonoMethodSignature *callsig;
3813 mono_marshal_lock ();
3815 for (item = strsig_list; item; item = item->next) {
3816 cs = (CtorSigPair *)item->data;
3817 /* mono_metadata_signature_equal () is safe to call with the marshal lock
3818 * because it is lock-free.
3820 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
3825 mono_marshal_unlock ();
3829 static MonoMethodSignature *
3830 add_string_ctor_signature (MonoMethod *method)
3832 MonoMethodSignature *callsig;
3835 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
3836 callsig->ret = &mono_defaults.string_class->byval_arg;
3837 cs = g_new (CtorSigPair, 1);
3839 cs->ctor_sig = mono_method_signature (method);
3841 mono_marshal_lock ();
3842 strsig_list = g_slist_prepend (strsig_list, cs);
3843 mono_marshal_unlock ();
3848 * mono_marshal_get_string_ctor_signature:
3850 * Return the modified signature used by string ctors (they return the newly created
3853 MonoMethodSignature*
3854 mono_marshal_get_string_ctor_signature (MonoMethod *method)
3856 MonoMethodSignature *sig = lookup_string_ctor_signature (mono_method_signature (method));
3858 sig = add_string_ctor_signature (method);
3864 get_runtime_invoke_type (MonoType *t, gboolean ret)
3867 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
3869 /* Can't share this with 'I' as that needs another indirection */
3870 return &mono_defaults.int_class->this_arg;
3873 if (MONO_TYPE_IS_REFERENCE (t))
3874 return &mono_defaults.object_class->byval_arg;
3877 /* The result needs to be boxed */
3882 /* Can't share these as the argument needs to be loaded using sign/zero extension */
3885 return &mono_defaults.sbyte_class->byval_arg;
3887 return &mono_defaults.int16_class->byval_arg;
3889 return &mono_defaults.int32_class->byval_arg;
3892 return &mono_defaults.int64_class->byval_arg;
3893 case MONO_TYPE_BOOLEAN:
3894 return &mono_defaults.byte_class->byval_arg;
3895 case MONO_TYPE_CHAR:
3896 return &mono_defaults.uint16_class->byval_arg;
3898 return &mono_defaults.int_class->byval_arg;
3899 case MONO_TYPE_VALUETYPE:
3900 if (t->data.klass->enumtype) {
3901 t = mono_class_enum_basetype (t->data.klass);
3911 * mono_marshal_get_runtime_invoke_sig:
3913 * Return a common signature used for sharing runtime invoke wrappers.
3915 static MonoMethodSignature*
3916 mono_marshal_get_runtime_invoke_sig (MonoMethodSignature *sig)
3918 MonoMethodSignature *res = mono_metadata_signature_dup (sig);
3921 res->generic_param_count = 0;
3922 res->ret = get_runtime_invoke_type (sig->ret, TRUE);
3923 for (i = 0; i < res->param_count; ++i)
3924 res->params [i] = get_runtime_invoke_type (sig->params [i], FALSE);
3930 runtime_invoke_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3932 /* Can't share wrappers which return a vtype since it needs to be boxed */
3933 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))
3936 return mono_metadata_signature_equal (sig1, sig2);
3944 * Emit the call to the wrapper method from a runtime invoke wrapper.
3947 emit_invoke_call (MonoMethodBuilder *mb, MonoMethod *method,
3948 MonoMethodSignature *sig, MonoMethodSignature *callsig,
3950 gboolean virtual_, gboolean need_direct_wrapper)
3952 static MonoString *string_dummy = NULL;
3954 int *tmp_nullable_locals;
3955 gboolean void_ret = FALSE;
3956 gboolean string_ctor = method && method->string_ctor;
3958 /* to make it work with our special string constructors */
3959 if (!string_dummy) {
3960 MONO_GC_REGISTER_ROOT_SINGLE (string_dummy, MONO_ROOT_SOURCE_MARSHAL, "dummy marshal string");
3961 string_dummy = mono_string_new_wrapper ("dummy");
3965 g_assert (sig->hasthis);
3966 g_assert (method->flags & METHOD_ATTRIBUTE_VIRTUAL);
3971 if (mono_gc_is_moving ()) {
3972 mono_mb_emit_ptr (mb, &string_dummy);
3973 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3975 mono_mb_emit_ptr (mb, string_dummy);
3978 mono_mb_emit_ldarg (mb, 0);
3982 tmp_nullable_locals = g_new0 (int, sig->param_count);
3984 for (i = 0; i < sig->param_count; i++) {
3985 MonoType *t = sig->params [i];
3988 mono_mb_emit_ldarg (mb, 1);
3990 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
3991 mono_mb_emit_byte (mb, CEE_ADD);
3995 mono_mb_emit_byte (mb, CEE_LDIND_I);
3996 /* A Nullable<T> type don't have a boxed form, it's either null or a boxed T.
3997 * So to make this work we unbox it to a local variablee and push a reference to that.
3999 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4000 tmp_nullable_locals [i] = mono_mb_add_local (mb, &mono_class_from_mono_type (t)->byval_arg);
4002 mono_mb_emit_op (mb, CEE_UNBOX_ANY, mono_class_from_mono_type (t));
4003 mono_mb_emit_stloc (mb, tmp_nullable_locals [i]);
4004 mono_mb_emit_ldloc_addr (mb, tmp_nullable_locals [i]);
4009 /*FIXME 'this doesn't handle generic enums. Shouldn't we?*/
4010 type = sig->params [i]->type;
4014 case MONO_TYPE_BOOLEAN:
4018 case MONO_TYPE_CHAR:
4027 mono_mb_emit_byte (mb, CEE_LDIND_I);
4028 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4030 case MONO_TYPE_STRING:
4031 case MONO_TYPE_CLASS:
4032 case MONO_TYPE_ARRAY:
4034 case MONO_TYPE_SZARRAY:
4035 case MONO_TYPE_OBJECT:
4036 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4038 case MONO_TYPE_GENERICINST:
4039 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4040 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4045 case MONO_TYPE_VALUETYPE:
4046 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4047 type = mono_class_enum_basetype (t->data.klass)->type;
4050 mono_mb_emit_byte (mb, CEE_LDIND_I);
4051 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4052 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4053 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4054 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4056 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4060 g_assert_not_reached ();
4065 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4066 } else if (need_direct_wrapper) {
4067 mono_mb_emit_op (mb, CEE_CALL, method);
4069 mono_mb_emit_ldarg (mb, 3);
4070 mono_mb_emit_calli (mb, callsig);
4073 if (sig->ret->byref) {
4075 g_assert_not_reached ();
4078 switch (sig->ret->type) {
4079 case MONO_TYPE_VOID:
4083 case MONO_TYPE_BOOLEAN:
4084 case MONO_TYPE_CHAR:
4097 case MONO_TYPE_VALUETYPE:
4098 case MONO_TYPE_TYPEDBYREF:
4099 case MONO_TYPE_GENERICINST:
4100 /* box value types */
4101 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4103 case MONO_TYPE_STRING:
4104 case MONO_TYPE_CLASS:
4105 case MONO_TYPE_ARRAY:
4106 case MONO_TYPE_SZARRAY:
4107 case MONO_TYPE_OBJECT:
4111 /* The result is an IntPtr */
4112 mono_mb_emit_op (mb, CEE_BOX, mono_defaults.int_class);
4115 g_assert_not_reached ();
4119 mono_mb_emit_stloc (mb, loc_res);
4121 /* Convert back nullable-byref arguments */
4122 for (i = 0; i < sig->param_count; i++) {
4123 MonoType *t = sig->params [i];
4126 * Box the result and put it back into the array, the caller will have
4127 * to obtain it from there.
4129 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
4130 mono_mb_emit_ldarg (mb, 1);
4131 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4132 mono_mb_emit_byte (mb, CEE_ADD);
4134 mono_mb_emit_ldloc (mb, tmp_nullable_locals [i]);
4135 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4137 mono_mb_emit_byte (mb, CEE_STIND_REF);
4141 g_free (tmp_nullable_locals);
4145 emit_runtime_invoke_body (MonoMethodBuilder *mb, MonoImage *image, MonoMethod *method,
4146 MonoMethodSignature *sig, MonoMethodSignature *callsig,
4147 gboolean virtual_, gboolean need_direct_wrapper)
4150 MonoExceptionClause *clause;
4151 int loc_res, loc_exc;
4153 /* The wrapper looks like this:
4159 * } catch (Exception e) {
4167 /* allocate local 0 (object) tmp */
4168 loc_res = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4169 /* allocate local 1 (object) exc */
4170 loc_exc = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4172 /* *exc is assumed to be initialized to NULL by the caller */
4174 mono_mb_emit_byte (mb, CEE_LDARG_2);
4175 labels [0] = mono_mb_emit_branch (mb, CEE_BRFALSE);
4180 labels [1] = mono_mb_get_label (mb);
4181 emit_thread_force_interrupt_checkpoint (mb);
4182 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4184 labels [2] = mono_mb_emit_branch (mb, CEE_LEAVE);
4186 /* Add a try clause around the call */
4187 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
4188 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
4189 clause->data.catch_class = mono_defaults.exception_class;
4190 clause->try_offset = labels [1];
4191 clause->try_len = mono_mb_get_label (mb) - labels [1];
4193 clause->handler_offset = mono_mb_get_label (mb);
4196 mono_mb_emit_stloc (mb, loc_exc);
4197 mono_mb_emit_byte (mb, CEE_LDARG_2);
4198 mono_mb_emit_ldloc (mb, loc_exc);
4199 mono_mb_emit_byte (mb, CEE_STIND_REF);
4201 mono_mb_emit_branch (mb, CEE_LEAVE);
4203 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4205 mono_mb_set_clauses (mb, 1, clause);
4207 mono_mb_patch_branch (mb, labels [2]);
4208 mono_mb_emit_ldloc (mb, loc_res);
4209 mono_mb_emit_byte (mb, CEE_RET);
4214 mono_mb_patch_branch (mb, labels [0]);
4215 emit_thread_force_interrupt_checkpoint (mb);
4216 emit_invoke_call (mb, method, sig, callsig, loc_res, virtual_, need_direct_wrapper);
4218 mono_mb_emit_ldloc (mb, 0);
4219 mono_mb_emit_byte (mb, CEE_RET);
4224 * mono_marshal_get_runtime_invoke:
4225 * Generates IL code for the runtime invoke function:
4227 * <code>MonoObject *runtime_invoke (MonoObject *this_obj, void **params, MonoObject **exc, void* method)</code>
4229 * We also catch exceptions if \p exc is not NULL.
4230 * If \p virtual is TRUE, then \p method is invoked virtually on \p this. This is useful since
4231 * it means that the compiled code for \p method does not have to be looked up
4232 * before calling the runtime invoke wrapper. In this case, the wrapper ignores
4233 * its \p method argument.
4236 mono_marshal_get_runtime_invoke (MonoMethod *method, gboolean virtual_)
4238 MonoMethodSignature *sig, *csig, *callsig;
4239 MonoMethodBuilder *mb;
4240 GHashTable *cache = NULL;
4241 MonoClass *target_klass;
4242 MonoMethod *res = NULL;
4243 static MonoMethodSignature *cctor_signature = NULL;
4244 static MonoMethodSignature *finalize_signature = NULL;
4246 const char *param_names [16];
4247 gboolean need_direct_wrapper = FALSE;
4252 if (!cctor_signature) {
4253 cctor_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4254 cctor_signature->ret = &mono_defaults.void_class->byval_arg;
4256 if (!finalize_signature) {
4257 finalize_signature = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4258 finalize_signature->ret = &mono_defaults.void_class->byval_arg;
4259 finalize_signature->hasthis = 1;
4263 need_direct_wrapper = TRUE;
4266 * Use a separate cache indexed by methods to speed things up and to avoid the
4267 * boundless mempool growth caused by the signature_dup stuff below.
4270 cache = get_cache (&method->klass->image->runtime_invoke_vcall_cache, mono_aligned_addr_hash, NULL);
4272 cache = get_cache (&mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache, mono_aligned_addr_hash, NULL);
4274 res = mono_marshal_find_in_cache (cache, method);
4278 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4279 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4281 * Array Get/Set/Address methods. The JIT implements them using inline code
4282 * so we need to create an invoke wrapper which calls the method directly.
4284 need_direct_wrapper = TRUE;
4287 if (method->string_ctor) {
4288 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4290 callsig = add_string_ctor_signature (method);
4291 /* Can't share this as we push a string as this */
4292 need_direct_wrapper = TRUE;
4294 if (method_is_dynamic (method))
4295 callsig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
4297 callsig = mono_method_signature (method);
4300 sig = mono_method_signature (method);
4302 target_klass = get_wrapper_target_class (method->klass->image);
4304 /* Try to share wrappers for non-corlib methods with simple signatures */
4305 if (mono_metadata_signature_equal (callsig, cctor_signature)) {
4306 callsig = cctor_signature;
4307 target_klass = mono_defaults.object_class;
4308 } else if (mono_metadata_signature_equal (callsig, finalize_signature)) {
4309 callsig = finalize_signature;
4310 target_klass = mono_defaults.object_class;
4313 if (need_direct_wrapper) {
4314 /* Already searched at the start */
4316 MonoMethodSignature *tmp_sig;
4318 callsig = mono_marshal_get_runtime_invoke_sig (callsig);
4319 GHashTable **cache_table = NULL;
4321 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4322 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_vtype_cache;
4324 cache_table = &mono_method_get_wrapper_cache (method)->runtime_invoke_cache;
4326 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4327 (GCompareFunc)runtime_invoke_signature_equal);
4329 /* from mono_marshal_find_in_cache */
4330 mono_marshal_lock ();
4331 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4332 mono_marshal_unlock ();
4339 /* Make a copy of the signature from the image mempool */
4341 callsig = mono_metadata_signature_dup_full (target_klass->image, callsig);
4345 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4347 csig->ret = &mono_defaults.object_class->byval_arg;
4348 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4349 csig->params [0] = get_runtime_invoke_type (&method->klass->this_arg, FALSE);
4351 csig->params [0] = &mono_defaults.object_class->byval_arg;
4352 csig->params [1] = &mono_defaults.int_class->byval_arg;
4353 csig->params [2] = &mono_defaults.int_class->byval_arg;
4354 csig->params [3] = &mono_defaults.int_class->byval_arg;
4357 /* This is called from runtime code so it has to be cdecl */
4358 csig->call_convention = MONO_CALL_C;
4361 name = mono_signature_to_name (callsig, virtual_ ? "runtime_invoke_virtual" : "runtime_invoke");
4362 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4366 param_names [0] = "this";
4367 param_names [1] = "params";
4368 param_names [2] = "exc";
4369 param_names [3] = "method";
4370 mono_mb_set_param_names (mb, param_names);
4372 emit_runtime_invoke_body (mb, target_klass->image, method, sig, callsig, virtual_, need_direct_wrapper);
4375 if (need_direct_wrapper) {
4377 mb->skip_visibility = 1;
4379 info = mono_wrapper_info_create (mb, virtual_ ? WRAPPER_SUBTYPE_RUNTIME_INVOKE_VIRTUAL : WRAPPER_SUBTYPE_RUNTIME_INVOKE_DIRECT);
4380 info->d.runtime_invoke.method = method;
4381 res = mono_mb_create_and_cache_full (cache, method, mb, csig, sig->param_count + 16, info, NULL);
4383 /* taken from mono_mb_create_and_cache */
4384 mono_marshal_lock ();
4385 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4386 mono_marshal_unlock ();
4388 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4389 info->d.runtime_invoke.sig = callsig;
4391 /* Somebody may have created it before us */
4394 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4396 mono_marshal_lock ();
4397 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4399 GHashTable *direct_cache;
4401 g_hash_table_insert (cache, callsig, res);
4402 /* Can't insert it into wrapper_hash since the key is a signature */
4403 direct_cache = mono_method_get_wrapper_cache (method)->runtime_invoke_direct_cache;
4405 g_hash_table_insert (direct_cache, method, res);
4407 mono_free_method (newm);
4409 mono_marshal_unlock ();
4412 /* end mono_mb_create_and_cache */
4421 * mono_marshal_get_runtime_invoke_dynamic:
4423 * Return a method which can be used to invoke managed methods from native code
4425 * The signature of the returned method is given by RuntimeInvokeDynamicFunction:
4426 * void runtime_invoke (void *args, MonoObject **exc, void *compiled_method)
4427 * ARGS should point to an architecture specific structure containing
4428 * the arguments and space for the return value.
4429 * The other arguments are the same as for runtime_invoke (), except that
4430 * ARGS should contain the this argument too.
4431 * This wrapper serves the same purpose as the runtime-invoke wrappers, but there
4432 * is only one copy of it, which is useful in full-aot.
4435 mono_marshal_get_runtime_invoke_dynamic (void)
4437 static MonoMethod *method;
4438 MonoMethodSignature *csig;
4439 MonoExceptionClause *clause;
4440 MonoMethodBuilder *mb;
4448 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4450 csig->ret = &mono_defaults.void_class->byval_arg;
4451 csig->params [0] = &mono_defaults.int_class->byval_arg;
4452 csig->params [1] = &mono_defaults.int_class->byval_arg;
4453 csig->params [2] = &mono_defaults.int_class->byval_arg;
4454 csig->params [3] = &mono_defaults.int_class->byval_arg;
4456 name = g_strdup ("runtime_invoke_dynamic");
4457 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4461 /* allocate local 0 (object) tmp */
4462 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4463 /* allocate local 1 (object) exc */
4464 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4466 /* cond set *exc to null */
4467 mono_mb_emit_byte (mb, CEE_LDARG_1);
4468 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4469 mono_mb_emit_byte (mb, 3);
4470 mono_mb_emit_byte (mb, CEE_LDARG_1);
4471 mono_mb_emit_byte (mb, CEE_LDNULL);
4472 mono_mb_emit_byte (mb, CEE_STIND_REF);
4474 emit_thread_force_interrupt_checkpoint (mb);
4476 mono_mb_emit_byte (mb, CEE_LDARG_0);
4477 mono_mb_emit_byte (mb, CEE_LDARG_2);
4478 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4479 mono_mb_emit_byte (mb, CEE_MONO_DYN_CALL);
4481 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4483 clause = (MonoExceptionClause *)mono_image_alloc0 (mono_defaults.corlib, sizeof (MonoExceptionClause));
4484 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4485 clause->try_len = mono_mb_get_label (mb);
4488 clause->data.filter_offset = mono_mb_get_label (mb);
4490 mono_mb_emit_byte (mb, CEE_POP);
4491 mono_mb_emit_byte (mb, CEE_LDARG_1);
4492 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4493 mono_mb_emit_byte (mb, CEE_PREFIX1);
4494 mono_mb_emit_byte (mb, CEE_CGT_UN);
4495 mono_mb_emit_byte (mb, CEE_PREFIX1);
4496 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4498 clause->handler_offset = mono_mb_get_label (mb);
4501 /* store exception */
4502 mono_mb_emit_stloc (mb, 1);
4504 mono_mb_emit_byte (mb, CEE_LDARG_1);
4505 mono_mb_emit_ldloc (mb, 1);
4506 mono_mb_emit_byte (mb, CEE_STIND_REF);
4508 mono_mb_emit_byte (mb, CEE_LDNULL);
4509 mono_mb_emit_stloc (mb, 0);
4511 mono_mb_emit_branch (mb, CEE_LEAVE);
4513 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4515 mono_mb_set_clauses (mb, 1, clause);
4518 mono_mb_patch_branch (mb, pos);
4519 //mono_mb_emit_ldloc (mb, 0);
4520 mono_mb_emit_byte (mb, CEE_RET);
4521 #endif /* DISABLE_JIT */
4523 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_DYNAMIC);
4525 mono_marshal_lock ();
4526 /* double-checked locking */
4528 method = mono_mb_create (mb, csig, 16, info);
4530 mono_marshal_unlock ();
4538 * mono_marshal_get_runtime_invoke_for_sig:
4540 * Return a runtime invoke wrapper for a given signature.
4543 mono_marshal_get_runtime_invoke_for_sig (MonoMethodSignature *sig)
4545 MonoMethodSignature *csig, *callsig;
4546 MonoMethodBuilder *mb;
4548 GHashTable *cache = NULL;
4549 GHashTable **cache_table = NULL;
4550 MonoMethod *res = NULL;
4552 const char *param_names [16];
4555 /* A simplified version of mono_marshal_get_runtime_invoke */
4557 image = mono_defaults.corlib;
4559 callsig = mono_marshal_get_runtime_invoke_sig (sig);
4561 cache_table = &image->wrapper_caches.runtime_invoke_sig_cache;
4563 cache = get_cache (cache_table, (GHashFunc)mono_signature_hash,
4564 (GCompareFunc)runtime_invoke_signature_equal);
4566 /* from mono_marshal_find_in_cache */
4567 mono_marshal_lock ();
4568 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4569 mono_marshal_unlock ();
4576 /* Make a copy of the signature from the image mempool */
4577 callsig = mono_metadata_signature_dup_full (image, callsig);
4579 csig = mono_metadata_signature_alloc (image, 4);
4580 csig->ret = &mono_defaults.object_class->byval_arg;
4581 csig->params [0] = &mono_defaults.object_class->byval_arg;
4582 csig->params [1] = &mono_defaults.int_class->byval_arg;
4583 csig->params [2] = &mono_defaults.int_class->byval_arg;
4584 csig->params [3] = &mono_defaults.int_class->byval_arg;
4587 /* This is called from runtime code so it has to be cdecl */
4588 csig->call_convention = MONO_CALL_C;
4591 name = mono_signature_to_name (callsig, "runtime_invoke_sig");
4592 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_RUNTIME_INVOKE);
4596 param_names [0] = "this";
4597 param_names [1] = "params";
4598 param_names [2] = "exc";
4599 param_names [3] = "method";
4600 mono_mb_set_param_names (mb, param_names);
4602 emit_runtime_invoke_body (mb, image, NULL, sig, callsig, FALSE, FALSE);
4605 /* taken from mono_mb_create_and_cache */
4606 mono_marshal_lock ();
4607 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4608 mono_marshal_unlock ();
4610 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_RUNTIME_INVOKE_NORMAL);
4611 info->d.runtime_invoke.sig = callsig;
4613 /* Somebody may have created it before us */
4616 newm = mono_mb_create (mb, csig, sig->param_count + 16, info);
4618 mono_marshal_lock ();
4619 res = (MonoMethod *)g_hash_table_lookup (cache, callsig);
4622 g_hash_table_insert (cache, callsig, res);
4624 mono_free_method (newm);
4626 mono_marshal_unlock ();
4629 /* end mono_mb_create_and_cache */
4638 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4640 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4641 klass->name_space, klass->name);
4643 mono_mb_emit_exception_marshal_directive (mb, msg);
4648 * mono_marshal_get_icall_wrapper:
4649 * Generates IL code for the icall wrapper. The generated method
4650 * calls the unmanaged code in \p func.
4653 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
4655 MonoMethodSignature *csig, *csig2;
4656 MonoMethodBuilder *mb;
4661 GHashTable *cache = get_cache (&mono_defaults.object_class->image->icall_wrapper_cache, mono_aligned_addr_hash, NULL);
4662 if ((res = mono_marshal_find_in_cache (cache, (gpointer) func)))
4665 g_assert (sig->pinvoke);
4667 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
4669 mb->method->save_lmf = 1;
4671 /* Add an explicit this argument */
4673 csig2 = mono_metadata_signature_dup_add_this (mono_defaults.corlib, sig, mono_defaults.object_class);
4675 csig2 = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4679 mono_mb_emit_byte (mb, CEE_LDARG_0);
4681 for (i = 0; i < sig->param_count; i++)
4682 mono_mb_emit_ldarg (mb, i + sig->hasthis);
4684 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4685 mono_mb_emit_op (mb, CEE_MONO_JIT_ICALL_ADDR, (gpointer)func);
4686 mono_mb_emit_calli (mb, csig2);
4687 if (check_exceptions)
4688 emit_thread_interrupt_checkpoint (mb);
4689 mono_mb_emit_byte (mb, CEE_RET);
4692 csig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
4694 if (csig->call_convention == MONO_CALL_VARARG)
4695 csig->call_convention = 0;
4697 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ICALL_WRAPPER);
4698 info->d.icall.func = (gpointer)func;
4699 res = mono_mb_create_and_cache_full (cache, (gpointer) func, mb, csig, csig->param_count + 16, info, NULL);
4706 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
4707 MonoMarshalSpec *spec,
4708 int conv_arg, MonoType **conv_arg_type,
4709 MarshalAction action)
4712 if (action == MARSHAL_ACTION_CONV_IN && t->type == MONO_TYPE_VALUETYPE)
4713 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4719 static MonoClass *ICustomMarshaler = NULL;
4720 static MonoMethod *cleanup_native, *cleanup_managed;
4721 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
4722 MonoMethod *get_instance = NULL;
4723 MonoMethodBuilder *mb = m->mb;
4724 char *exception_msg = NULL;
4728 if (!ICustomMarshaler) {
4729 MonoClass *klass = mono_class_try_get_icustom_marshaler_class ();
4731 exception_msg = g_strdup ("Current profile doesn't support ICustomMarshaler");
4732 goto handle_exception;
4735 cleanup_native = mono_class_get_method_from_name (klass, "CleanUpNativeData", 1);
4736 g_assert (cleanup_native);
4737 cleanup_managed = mono_class_get_method_from_name (klass, "CleanUpManagedData", 1);
4738 g_assert (cleanup_managed);
4739 marshal_managed_to_native = mono_class_get_method_from_name (klass, "MarshalManagedToNative", 1);
4740 g_assert (marshal_managed_to_native);
4741 marshal_native_to_managed = mono_class_get_method_from_name (klass, "MarshalNativeToManaged", 1);
4742 g_assert (marshal_native_to_managed);
4744 mono_memory_barrier ();
4745 ICustomMarshaler = klass;
4748 if (spec->data.custom_data.image)
4749 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, spec->data.custom_data.image, &error);
4751 mtype = mono_reflection_type_from_name_checked (spec->data.custom_data.custom_name, m->image, &error);
4752 g_assert (mtype != NULL);
4753 mono_error_assert_ok (&error);
4754 mklass = mono_class_from_mono_type (mtype);
4755 g_assert (mklass != NULL);
4757 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
4758 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
4760 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
4762 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
4763 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
4764 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
4765 (get_sig->params [0]->type != MONO_TYPE_STRING))
4766 get_instance = NULL;
4770 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);
4773 /* Throw exception and emit compensation code if neccesary */
4774 if (exception_msg) {
4776 case MARSHAL_ACTION_CONV_IN:
4777 case MARSHAL_ACTION_CONV_RESULT:
4778 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4779 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
4780 mono_mb_emit_byte (mb, CEE_POP);
4782 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
4785 case MARSHAL_ACTION_PUSH:
4786 mono_mb_emit_byte (mb, CEE_LDNULL);
4794 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
4795 /* FIXME: MS.NET throws an exception if GetInstance returns null */
4798 case MARSHAL_ACTION_CONV_IN:
4800 case MONO_TYPE_CLASS:
4801 case MONO_TYPE_OBJECT:
4802 case MONO_TYPE_STRING:
4803 case MONO_TYPE_ARRAY:
4804 case MONO_TYPE_SZARRAY:
4805 case MONO_TYPE_VALUETYPE:
4809 g_warning ("custom marshalling of type %x is currently not supported", t->type);
4810 g_assert_not_reached ();
4814 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4816 mono_mb_emit_byte (mb, CEE_LDNULL);
4817 mono_mb_emit_stloc (mb, conv_arg);
4819 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
4822 /* Minic MS.NET behavior */
4823 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
4826 /* Check for null */
4827 mono_mb_emit_ldarg (mb, argnum);
4829 mono_mb_emit_byte (mb, CEE_LDIND_I);
4830 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4832 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4834 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4836 mono_mb_emit_ldarg (mb, argnum);
4838 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4840 if (t->type == MONO_TYPE_VALUETYPE) {
4842 * Since we can't determine the type of the argument, we
4843 * will assume the unmanaged function takes a pointer.
4845 *conv_arg_type = &mono_defaults.int_class->byval_arg;
4847 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
4850 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4851 mono_mb_emit_stloc (mb, conv_arg);
4853 mono_mb_patch_branch (mb, pos2);
4856 case MARSHAL_ACTION_CONV_OUT:
4857 /* Check for null */
4858 mono_mb_emit_ldloc (mb, conv_arg);
4859 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4862 mono_mb_emit_ldarg (mb, argnum);
4864 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4866 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4868 mono_mb_emit_ldloc (mb, conv_arg);
4869 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4870 mono_mb_emit_byte (mb, CEE_STIND_REF);
4871 } else if (t->attrs & PARAM_ATTRIBUTE_OUT) {
4872 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4874 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4876 mono_mb_emit_ldloc (mb, conv_arg);
4877 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4879 /* We have nowhere to store the result */
4880 mono_mb_emit_byte (mb, CEE_POP);
4883 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4885 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4887 mono_mb_emit_ldloc (mb, conv_arg);
4889 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4891 mono_mb_patch_branch (mb, pos2);
4894 case MARSHAL_ACTION_PUSH:
4896 mono_mb_emit_ldloc_addr (mb, conv_arg);
4898 mono_mb_emit_ldloc (mb, conv_arg);
4901 case MARSHAL_ACTION_CONV_RESULT:
4902 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
4904 mono_mb_emit_stloc (mb, 3);
4906 mono_mb_emit_ldloc (mb, 3);
4907 mono_mb_emit_stloc (mb, loc1);
4909 /* Check for null */
4910 mono_mb_emit_ldloc (mb, 3);
4911 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4913 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4915 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4916 mono_mb_emit_byte (mb, CEE_DUP);
4918 mono_mb_emit_ldloc (mb, 3);
4919 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4920 mono_mb_emit_stloc (mb, 3);
4922 mono_mb_emit_ldloc (mb, loc1);
4923 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
4925 mono_mb_patch_branch (mb, pos2);
4928 case MARSHAL_ACTION_MANAGED_CONV_IN:
4929 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4931 mono_mb_emit_byte (mb, CEE_LDNULL);
4932 mono_mb_emit_stloc (mb, conv_arg);
4934 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
4937 /* Check for null */
4938 mono_mb_emit_ldarg (mb, argnum);
4940 mono_mb_emit_byte (mb, CEE_LDIND_I);
4941 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4943 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4944 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4946 mono_mb_emit_ldarg (mb, argnum);
4948 mono_mb_emit_byte (mb, CEE_LDIND_I);
4950 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
4951 mono_mb_emit_stloc (mb, conv_arg);
4953 mono_mb_patch_branch (mb, pos2);
4956 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
4957 g_assert (!t->byref);
4959 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4961 mono_mb_emit_stloc (mb, 3);
4963 mono_mb_emit_ldloc (mb, 3);
4964 mono_mb_emit_stloc (mb, loc1);
4966 /* Check for null */
4967 mono_mb_emit_ldloc (mb, 3);
4968 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4970 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4971 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4972 mono_mb_emit_byte (mb, CEE_DUP);
4974 mono_mb_emit_ldloc (mb, 3);
4975 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4976 mono_mb_emit_stloc (mb, 3);
4978 mono_mb_emit_ldloc (mb, loc1);
4979 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
4981 mono_mb_patch_branch (mb, pos2);
4984 case MARSHAL_ACTION_MANAGED_CONV_OUT:
4986 /* Check for null */
4987 mono_mb_emit_ldloc (mb, conv_arg);
4988 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4991 mono_mb_emit_ldarg (mb, argnum);
4993 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
4995 mono_mb_emit_op (mb, CEE_CALL, get_instance);
4997 mono_mb_emit_ldloc (mb, conv_arg);
4998 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
4999 mono_mb_emit_byte (mb, CEE_STIND_I);
5002 /* Call CleanUpManagedData */
5003 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5005 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5007 mono_mb_emit_ldloc (mb, conv_arg);
5008 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5010 mono_mb_patch_branch (mb, pos2);
5014 g_assert_not_reached ();
5022 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5023 MonoMarshalSpec *spec,
5024 int conv_arg, MonoType **conv_arg_type,
5025 MarshalAction action)
5028 MonoMethodBuilder *mb = m->mb;
5031 case MARSHAL_ACTION_CONV_IN: {
5032 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5034 g_assert (t->type == MONO_TYPE_OBJECT);
5035 g_assert (!t->byref);
5037 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5038 mono_mb_emit_ldarg (mb, argnum);
5039 mono_mb_emit_icon (mb, encoding);
5040 mono_mb_emit_icon (mb, t->attrs);
5041 mono_mb_emit_icall (mb, mono_marshal_asany);
5042 mono_mb_emit_stloc (mb, conv_arg);
5046 case MARSHAL_ACTION_PUSH:
5047 mono_mb_emit_ldloc (mb, conv_arg);
5050 case MARSHAL_ACTION_CONV_OUT: {
5051 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5053 mono_mb_emit_ldarg (mb, argnum);
5054 mono_mb_emit_ldloc (mb, conv_arg);
5055 mono_mb_emit_icon (mb, encoding);
5056 mono_mb_emit_icon (mb, t->attrs);
5057 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5062 g_assert_not_reached ();
5069 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5070 MonoMarshalSpec *spec,
5071 int conv_arg, MonoType **conv_arg_type,
5072 MarshalAction action)
5075 MonoMethodBuilder *mb = m->mb;
5076 MonoClass *klass, *date_time_class;
5079 klass = mono_class_from_mono_type (t);
5081 date_time_class = mono_class_get_date_time_class ();
5084 case MARSHAL_ACTION_CONV_IN:
5085 if (klass == date_time_class) {
5086 /* Convert it to an OLE DATE type */
5087 static MonoMethod *to_oadate;
5090 to_oadate = mono_class_get_method_from_name (date_time_class, "ToOADate", 0);
5091 g_assert (to_oadate);
5093 conv_arg = mono_mb_add_local (mb, &mono_defaults.double_class->byval_arg);
5096 mono_mb_emit_ldarg (mb, argnum);
5097 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5100 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5102 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.double_class->byval_arg;
5104 mono_mb_emit_ldarg_addr (mb, argnum);
5105 mono_mb_emit_managed_call (mb, to_oadate, NULL);
5106 mono_mb_emit_stloc (mb, conv_arg);
5110 mono_mb_patch_branch (mb, pos);
5114 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5117 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5119 /* store the address of the source into local variable 0 */
5121 mono_mb_emit_ldarg (mb, argnum);
5123 mono_mb_emit_ldarg_addr (mb, argnum);
5125 mono_mb_emit_stloc (mb, 0);
5127 /* allocate space for the native struct and
5128 * store the address into local variable 1 (dest) */
5129 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5130 mono_mb_emit_byte (mb, CEE_PREFIX1);
5131 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5132 mono_mb_emit_stloc (mb, conv_arg);
5135 mono_mb_emit_ldloc (mb, 0);
5136 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5139 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5141 mono_mb_emit_ldloc (mb, conv_arg);
5142 mono_mb_emit_stloc (mb, 1);
5144 /* emit valuetype conversion code */
5145 emit_struct_conv (mb, klass, FALSE);
5149 mono_mb_patch_branch (mb, pos);
5152 case MARSHAL_ACTION_PUSH:
5153 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5155 g_assert (!t->byref);
5157 /* Have to change the signature since the vtype is passed byref */
5158 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5160 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5161 mono_mb_emit_ldarg_addr (mb, argnum);
5163 mono_mb_emit_ldloc (mb, conv_arg);
5167 if (klass == date_time_class) {
5169 mono_mb_emit_ldloc_addr (mb, conv_arg);
5171 mono_mb_emit_ldloc (mb, conv_arg);
5175 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5176 mono_mb_emit_ldarg (mb, argnum);
5179 mono_mb_emit_ldloc (mb, conv_arg);
5181 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5182 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5186 case MARSHAL_ACTION_CONV_OUT:
5187 if (klass == date_time_class) {
5188 /* Convert from an OLE DATE type */
5189 static MonoMethod *from_oadate;
5194 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5196 from_oadate = mono_class_get_method_from_name (date_time_class, "FromOADate", 1);
5197 g_assert (from_oadate);
5199 mono_mb_emit_ldarg (mb, argnum);
5200 mono_mb_emit_ldloc (mb, conv_arg);
5201 mono_mb_emit_managed_call (mb, from_oadate, NULL);
5202 mono_mb_emit_op (mb, CEE_STOBJ, date_time_class);
5207 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5211 /* dst = argument */
5212 mono_mb_emit_ldarg (mb, argnum);
5213 mono_mb_emit_stloc (mb, 1);
5215 mono_mb_emit_ldloc (mb, 1);
5216 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5218 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5219 /* src = tmp_locals [i] */
5220 mono_mb_emit_ldloc (mb, conv_arg);
5221 mono_mb_emit_stloc (mb, 0);
5223 /* emit valuetype conversion code */
5224 emit_struct_conv (mb, klass, TRUE);
5228 emit_struct_free (mb, klass, conv_arg);
5231 mono_mb_patch_branch (mb, pos);
5234 case MARSHAL_ACTION_CONV_RESULT:
5235 if (mono_class_is_explicit_layout (klass) || klass->blittable) {
5236 mono_mb_emit_stloc (mb, 3);
5240 /* load pointer to returned value type */
5241 g_assert (m->vtaddr_var);
5242 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5243 /* store the address of the source into local variable 0 */
5244 mono_mb_emit_stloc (mb, 0);
5246 mono_mb_emit_ldloc_addr (mb, 3);
5247 mono_mb_emit_stloc (mb, 1);
5249 /* emit valuetype conversion code */
5250 emit_struct_conv (mb, klass, TRUE);
5253 case MARSHAL_ACTION_MANAGED_CONV_IN:
5254 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5259 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5261 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5265 mono_mb_emit_ldarg (mb, argnum);
5267 mono_mb_emit_ldarg_addr (mb, argnum);
5268 mono_mb_emit_stloc (mb, 0);
5271 mono_mb_emit_ldloc (mb, 0);
5272 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5275 mono_mb_emit_ldloc_addr (mb, conv_arg);
5276 mono_mb_emit_stloc (mb, 1);
5278 /* emit valuetype conversion code */
5279 emit_struct_conv (mb, klass, TRUE);
5282 mono_mb_patch_branch (mb, pos);
5285 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5286 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype)
5288 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))
5291 /* Check for null */
5292 mono_mb_emit_ldarg (mb, argnum);
5293 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5296 mono_mb_emit_ldloc_addr (mb, conv_arg);
5297 mono_mb_emit_stloc (mb, 0);
5300 mono_mb_emit_ldarg (mb, argnum);
5301 mono_mb_emit_stloc (mb, 1);
5303 /* emit valuetype conversion code */
5304 emit_struct_conv (mb, klass, FALSE);
5306 mono_mb_patch_branch (mb, pos2);
5309 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5310 if (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype) {
5311 mono_mb_emit_stloc (mb, 3);
5316 /* load pointer to returned value type */
5317 g_assert (m->vtaddr_var);
5318 mono_mb_emit_ldloc (mb, m->vtaddr_var);
5320 /* store the address of the source into local variable 0 */
5321 mono_mb_emit_stloc (mb, 0);
5322 /* allocate space for the native struct and
5323 * store the address into dst_ptr */
5324 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5325 m->retobj_class = klass;
5326 g_assert (m->retobj_var);
5327 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5328 mono_mb_emit_byte (mb, CEE_CONV_I);
5329 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
5330 mono_mb_emit_stloc (mb, 1);
5331 mono_mb_emit_ldloc (mb, 1);
5332 mono_mb_emit_stloc (mb, m->retobj_var);
5334 /* emit valuetype conversion code */
5335 emit_struct_conv (mb, klass, FALSE);
5339 g_assert_not_reached ();
5346 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5347 MonoMarshalSpec *spec,
5348 int conv_arg, MonoType **conv_arg_type,
5349 MarshalAction action)
5353 case MARSHAL_ACTION_CONV_IN:
5354 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5356 case MARSHAL_ACTION_MANAGED_CONV_IN:
5357 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5361 MonoMethodBuilder *mb = m->mb;
5362 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5363 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5367 case MARSHAL_ACTION_CONV_IN:
5368 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5369 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5372 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5375 mono_mb_emit_ldarg (mb, argnum);
5376 mono_mb_emit_byte (mb, CEE_LDIND_I);
5378 mono_mb_emit_ldarg (mb, argnum);
5381 if (conv == MONO_MARSHAL_CONV_INVALID) {
5382 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5383 mono_mb_emit_exception_marshal_directive (mb, msg);
5385 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5387 mono_mb_emit_stloc (mb, conv_arg);
5391 case MARSHAL_ACTION_CONV_OUT:
5392 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5393 if (conv == MONO_MARSHAL_CONV_INVALID) {
5394 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5395 mono_mb_emit_exception_marshal_directive (mb, msg);
5399 if (encoding == MONO_NATIVE_VBBYREFSTR) {
5400 static MonoMethod *m;
5403 m = mono_class_get_method_from_name_flags (mono_defaults.string_class, "get_Length", -1, 0);
5408 char *msg = g_strdup_printf ("VBByRefStr marshalling requires a ref parameter.", encoding);
5409 mono_mb_emit_exception_marshal_directive (mb, msg);
5414 * Have to allocate a new string with the same length as the original, and
5415 * copy the contents of the buffer pointed to by CONV_ARG into it.
5417 g_assert (t->byref);
5418 mono_mb_emit_ldarg (mb, argnum);
5419 mono_mb_emit_ldloc (mb, conv_arg);
5420 mono_mb_emit_ldarg (mb, argnum);
5421 mono_mb_emit_byte (mb, CEE_LDIND_I);
5422 mono_mb_emit_managed_call (mb, m, NULL);
5423 mono_mb_emit_icall (mb, mono_string_new_len_wrapper);
5424 mono_mb_emit_byte (mb, CEE_STIND_REF);
5425 } else if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
5427 mono_mb_emit_ldarg (mb, argnum);
5428 mono_mb_emit_ldloc (mb, conv_arg);
5429 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5430 mono_mb_emit_byte (mb, stind_op);
5435 mono_mb_emit_ldloc (mb, conv_arg);
5436 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5437 mono_mb_emit_icall (mb, mono_free_bstr);
5439 mono_mb_emit_icall (mb, mono_marshal_free);
5443 case MARSHAL_ACTION_PUSH:
5444 if (t->byref && encoding != MONO_NATIVE_VBBYREFSTR)
5445 mono_mb_emit_ldloc_addr (mb, conv_arg);
5447 mono_mb_emit_ldloc (mb, conv_arg);
5450 case MARSHAL_ACTION_CONV_RESULT:
5451 mono_mb_emit_stloc (mb, 0);
5453 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5454 if (conv == MONO_MARSHAL_CONV_INVALID) {
5455 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5456 mono_mb_emit_exception_marshal_directive (mb, msg);
5460 mono_mb_emit_ldloc (mb, 0);
5461 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5462 mono_mb_emit_stloc (mb, 3);
5464 /* free the string */
5465 mono_mb_emit_ldloc (mb, 0);
5466 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
5467 mono_mb_emit_icall (mb, mono_free_bstr);
5469 mono_mb_emit_icall (mb, mono_marshal_free);
5472 case MARSHAL_ACTION_MANAGED_CONV_IN:
5473 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5475 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5478 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5482 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
5483 if (conv == MONO_MARSHAL_CONV_INVALID) {
5484 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5485 mono_mb_emit_exception_marshal_directive (mb, msg);
5489 mono_mb_emit_ldarg (mb, argnum);
5491 mono_mb_emit_byte (mb, CEE_LDIND_I);
5492 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5493 mono_mb_emit_stloc (mb, conv_arg);
5496 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5500 mono_mb_emit_ldarg (mb, argnum);
5501 mono_mb_emit_ldloc (mb, conv_arg);
5502 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
5503 mono_mb_emit_byte (mb, stind_op);
5508 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5509 if (conv_to_icall (conv, NULL) == mono_marshal_string_to_utf16)
5510 /* We need to make a copy so the caller is able to free it */
5511 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
5513 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5514 mono_mb_emit_stloc (mb, 3);
5518 g_assert_not_reached ();
5526 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
5527 MonoMarshalSpec *spec, int conv_arg,
5528 MonoType **conv_arg_type, MarshalAction action)
5531 if (action == MARSHAL_ACTION_CONV_IN)
5532 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5534 MonoMethodBuilder *mb = m->mb;
5537 case MARSHAL_ACTION_CONV_IN: {
5538 MonoType *intptr_type;
5539 int dar_release_slot, pos;
5541 intptr_type = &mono_defaults.int_class->byval_arg;
5542 conv_arg = mono_mb_add_local (mb, intptr_type);
5543 *conv_arg_type = intptr_type;
5545 if (!sh_dangerous_add_ref)
5546 init_safe_handle ();
5548 mono_mb_emit_ldarg (mb, argnum);
5549 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
5550 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
5552 mono_mb_patch_branch (mb, pos);
5555 * My tests in show that ref SafeHandles are not really
5556 * passed as ref objects. Instead a NULL is passed as the
5559 mono_mb_emit_icon (mb, 0);
5560 mono_mb_emit_stloc (mb, conv_arg);
5564 /* Create local to hold the ref parameter to DangerousAddRef */
5565 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
5567 /* set release = false; */
5568 mono_mb_emit_icon (mb, 0);
5569 mono_mb_emit_stloc (mb, dar_release_slot);
5571 /* safehandle.DangerousAddRef (ref release) */
5572 mono_mb_emit_ldarg (mb, argnum);
5573 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
5574 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
5576 /* Pull the handle field from SafeHandle */
5577 mono_mb_emit_ldarg (mb, argnum);
5578 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5579 mono_mb_emit_byte (mb, CEE_LDIND_I);
5580 mono_mb_emit_stloc (mb, conv_arg);
5585 case MARSHAL_ACTION_PUSH:
5587 mono_mb_emit_ldloc_addr (mb, conv_arg);
5589 mono_mb_emit_ldloc (mb, conv_arg);
5592 case MARSHAL_ACTION_CONV_OUT: {
5593 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
5594 int dar_release_slot = conv_arg + 1;
5597 if (!sh_dangerous_release)
5598 init_safe_handle ();
5604 * My tests indicate that ref SafeHandles parameters are not actually
5605 * passed by ref, but instead a new Handle is created regardless of
5606 * whether a change happens in the unmanaged side.
5608 * Also, the Handle is created before calling into unmanaged code,
5609 * but we do not support that mechanism (getting to the original
5610 * handle) and it makes no difference where we create this
5612 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5614 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5617 /* refval = new SafeHandleDerived ()*/
5618 mono_mb_emit_ldarg (mb, argnum);
5619 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5620 mono_mb_emit_byte (mb, CEE_STIND_REF);
5622 /* refval.handle = returned_handle */
5623 mono_mb_emit_ldarg (mb, argnum);
5624 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5625 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5626 mono_mb_emit_ldloc (mb, conv_arg);
5627 mono_mb_emit_byte (mb, CEE_STIND_I);
5629 mono_mb_emit_ldloc (mb, dar_release_slot);
5630 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
5631 mono_mb_emit_ldarg (mb, argnum);
5632 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
5633 mono_mb_patch_branch (mb, label_next);
5638 case MARSHAL_ACTION_CONV_RESULT: {
5639 MonoMethod *ctor = NULL;
5640 int intptr_handle_slot;
5642 if (mono_class_is_abstract (t->data.klass)) {
5643 mono_mb_emit_byte (mb, CEE_POP);
5644 mono_mb_emit_exception_marshal_directive (mb, g_strdup ("Returned SafeHandles should not be abstract"));
5648 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
5650 mono_mb_emit_byte (mb, CEE_POP);
5651 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
5654 /* Store the IntPtr results into a local */
5655 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5656 mono_mb_emit_stloc (mb, intptr_handle_slot);
5658 /* Create return value */
5659 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
5660 mono_mb_emit_stloc (mb, 3);
5662 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
5663 mono_mb_emit_ldloc (mb, 3);
5664 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoSafeHandle, handle));
5665 mono_mb_emit_ldloc (mb, intptr_handle_slot);
5666 mono_mb_emit_byte (mb, CEE_STIND_I);
5670 case MARSHAL_ACTION_MANAGED_CONV_IN:
5671 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5674 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5675 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5678 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5679 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5682 printf ("Unhandled case for MarshalAction: %d\n", action);
5690 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
5691 MonoMarshalSpec *spec, int conv_arg,
5692 MonoType **conv_arg_type, MarshalAction action)
5695 if (action == MARSHAL_ACTION_CONV_IN)
5696 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5698 MonoMethodBuilder *mb = m->mb;
5701 case MARSHAL_ACTION_CONV_IN: {
5702 MonoType *intptr_type;
5704 intptr_type = &mono_defaults.int_class->byval_arg;
5705 conv_arg = mono_mb_add_local (mb, intptr_type);
5706 *conv_arg_type = intptr_type;
5709 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5710 mono_mb_emit_exception_marshal_directive (mb, msg);
5713 mono_mb_emit_ldarg_addr (mb, argnum);
5714 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoHandleRef, handle));
5715 mono_mb_emit_byte (mb, CEE_ADD);
5716 mono_mb_emit_byte (mb, CEE_LDIND_I);
5717 mono_mb_emit_stloc (mb, conv_arg);
5721 case MARSHAL_ACTION_PUSH:
5722 mono_mb_emit_ldloc (mb, conv_arg);
5725 case MARSHAL_ACTION_CONV_OUT: {
5726 /* no resource release required */
5730 case MARSHAL_ACTION_CONV_RESULT: {
5731 char *msg = g_strdup ("HandleRefs can not be returned from unmanaged code (or passed by ref)");
5732 mono_mb_emit_exception_marshal_directive (mb, msg);
5736 case MARSHAL_ACTION_MANAGED_CONV_IN:
5737 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
5740 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5741 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
5744 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5745 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
5748 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
5756 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
5757 MonoMarshalSpec *spec,
5758 int conv_arg, MonoType **conv_arg_type,
5759 MarshalAction action)
5762 if (action == MARSHAL_ACTION_CONV_IN)
5763 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5765 MonoMethodBuilder *mb = m->mb;
5766 MonoClass *klass = mono_class_from_mono_type (t);
5770 case MARSHAL_ACTION_CONV_IN:
5771 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5772 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5774 m->orig_conv_args [argnum] = 0;
5776 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
5777 char *msg = g_strdup_printf ("Marshalling of type object is not implemented");
5778 mono_mb_emit_exception_marshal_directive (mb, msg);
5782 if (klass->delegate) {
5784 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5785 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
5786 mono_mb_emit_exception_marshal_directive (mb, msg);
5788 mono_mb_emit_byte (mb, CEE_LDNULL);
5789 mono_mb_emit_stloc (mb, conv_arg);
5791 mono_mb_emit_ldarg (mb, argnum);
5792 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
5793 mono_mb_emit_stloc (mb, conv_arg);
5795 } else if (klass == mono_defaults.stringbuilder_class) {
5796 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5797 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
5801 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5802 char *msg = g_strdup_printf ("Byref marshalling of stringbuilders is not implemented.");
5803 mono_mb_emit_exception_marshal_directive (mb, msg);
5809 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))
5812 if (conv == MONO_MARSHAL_CONV_INVALID) {
5813 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
5814 mono_mb_emit_exception_marshal_directive (mb, msg);
5818 mono_mb_emit_ldarg (mb, argnum);
5820 mono_mb_emit_byte (mb, CEE_LDIND_I);
5822 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5823 mono_mb_emit_stloc (mb, conv_arg);
5824 } else if (klass->blittable) {
5825 mono_mb_emit_byte (mb, CEE_LDNULL);
5826 mono_mb_emit_stloc (mb, conv_arg);
5828 mono_mb_emit_ldarg (mb, argnum);
5829 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5831 mono_mb_emit_ldarg (mb, argnum);
5832 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5833 mono_mb_emit_stloc (mb, conv_arg);
5835 mono_mb_patch_branch (mb, pos);
5838 mono_mb_emit_byte (mb, CEE_LDNULL);
5839 mono_mb_emit_stloc (mb, conv_arg);
5842 /* we dont need any conversions for out parameters */
5843 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5846 mono_mb_emit_ldarg (mb, argnum);
5847 mono_mb_emit_byte (mb, CEE_LDIND_I);
5850 mono_mb_emit_ldarg (mb, argnum);
5851 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5852 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5855 /* store the address of the source into local variable 0 */
5856 mono_mb_emit_stloc (mb, 0);
5857 mono_mb_emit_ldloc (mb, 0);
5858 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5860 /* allocate space for the native struct and store the address */
5861 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5862 mono_mb_emit_byte (mb, CEE_PREFIX1);
5863 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5864 mono_mb_emit_stloc (mb, conv_arg);
5867 /* Need to store the original buffer so we can free it later */
5868 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5869 mono_mb_emit_ldloc (mb, conv_arg);
5870 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
5873 /* set the src_ptr */
5874 mono_mb_emit_ldloc (mb, 0);
5875 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
5876 mono_mb_emit_stloc (mb, 0);
5879 mono_mb_emit_ldloc (mb, conv_arg);
5880 mono_mb_emit_stloc (mb, 1);
5882 /* emit valuetype conversion code */
5883 emit_struct_conv (mb, klass, FALSE);
5885 mono_mb_patch_branch (mb, pos);
5889 case MARSHAL_ACTION_CONV_OUT:
5890 if (klass == mono_defaults.stringbuilder_class) {
5892 MonoMarshalNative encoding;
5893 MonoMarshalConv conv;
5895 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5896 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
5898 g_assert (encoding != -1);
5901 //g_assert (!(t->attrs & PARAM_ATTRIBUTE_OUT));
5905 mono_mb_emit_ldarg (mb, argnum);
5906 mono_mb_emit_ldloc (mb, conv_arg);
5909 case MONO_NATIVE_LPWSTR:
5910 mono_mb_emit_icall (mb, mono_string_utf16_to_builder2);
5912 case MONO_NATIVE_LPSTR:
5913 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5915 case MONO_NATIVE_UTF8STR:
5916 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
5919 g_assert_not_reached ();
5922 mono_mb_emit_byte (mb, CEE_STIND_REF);
5924 mono_mb_emit_ldarg (mb, argnum);
5925 mono_mb_emit_ldloc (mb, conv_arg);
5927 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
5931 mono_mb_emit_ldloc (mb, conv_arg);
5932 mono_mb_emit_icall (mb, mono_marshal_free);
5937 if (klass->delegate) {
5939 mono_mb_emit_ldarg (mb, argnum);
5940 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5941 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
5942 mono_mb_emit_ldloc (mb, conv_arg);
5943 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
5944 mono_mb_emit_byte (mb, CEE_STIND_REF);
5949 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5950 /* allocate a new object */
5951 mono_mb_emit_ldarg (mb, argnum);
5952 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5953 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
5954 mono_mb_emit_byte (mb, CEE_STIND_REF);
5957 /* dst = *argument */
5958 mono_mb_emit_ldarg (mb, argnum);
5961 mono_mb_emit_byte (mb, CEE_LDIND_I);
5963 mono_mb_emit_stloc (mb, 1);
5965 mono_mb_emit_ldloc (mb, 1);
5966 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5968 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5969 mono_mb_emit_ldloc (mb, 1);
5970 mono_mb_emit_icon (mb, sizeof (MonoObject));
5971 mono_mb_emit_byte (mb, CEE_ADD);
5972 mono_mb_emit_stloc (mb, 1);
5974 /* src = tmp_locals [i] */
5975 mono_mb_emit_ldloc (mb, conv_arg);
5976 mono_mb_emit_stloc (mb, 0);
5978 /* emit valuetype conversion code */
5979 emit_struct_conv (mb, klass, TRUE);
5981 /* Free the structure returned by the native code */
5982 emit_struct_free (mb, klass, conv_arg);
5984 if (m->orig_conv_args [argnum]) {
5986 * If the native function changed the pointer, then free
5987 * the original structure plus the new pointer.
5989 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
5990 mono_mb_emit_ldloc (mb, conv_arg);
5991 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
5993 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
5994 g_assert (m->orig_conv_args [argnum]);
5996 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
5999 mono_mb_emit_ldloc (mb, conv_arg);
6000 mono_mb_emit_icall (mb, mono_marshal_free);
6002 mono_mb_patch_branch (mb, pos2);
6006 /* Free the original structure passed to native code */
6007 emit_struct_free (mb, klass, conv_arg);
6009 mono_mb_patch_branch (mb, pos);
6012 case MARSHAL_ACTION_PUSH:
6014 mono_mb_emit_ldloc_addr (mb, conv_arg);
6016 mono_mb_emit_ldloc (mb, conv_arg);
6019 case MARSHAL_ACTION_CONV_RESULT:
6020 if (klass->delegate) {
6021 g_assert (!t->byref);
6022 mono_mb_emit_stloc (mb, 0);
6023 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6024 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6025 mono_mb_emit_ldloc (mb, 0);
6026 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6027 mono_mb_emit_stloc (mb, 3);
6028 } else if (klass == mono_defaults.stringbuilder_class){
6032 mono_mb_emit_stloc (mb, 0);
6034 /* Make a copy since emit_conv modifies local 0 */
6035 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6036 mono_mb_emit_ldloc (mb, 0);
6037 mono_mb_emit_stloc (mb, loc);
6039 mono_mb_emit_byte (mb, CEE_LDNULL);
6040 mono_mb_emit_stloc (mb, 3);
6042 mono_mb_emit_ldloc (mb, 0);
6043 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6045 /* allocate result object */
6047 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6048 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6049 mono_mb_emit_stloc (mb, 3);
6053 mono_mb_emit_ldloc (mb, 3);
6054 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6055 mono_mb_emit_stloc (mb, 1);
6057 /* emit conversion code */
6058 emit_struct_conv (mb, klass, TRUE);
6060 emit_struct_free (mb, klass, loc);
6062 /* Free the pointer allocated by unmanaged code */
6063 mono_mb_emit_ldloc (mb, loc);
6064 mono_mb_emit_icall (mb, mono_marshal_free);
6065 mono_mb_patch_branch (mb, pos);
6069 case MARSHAL_ACTION_MANAGED_CONV_IN:
6070 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6072 if (klass->delegate) {
6073 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6074 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6075 mono_mb_emit_ldarg (mb, argnum);
6077 mono_mb_emit_byte (mb, CEE_LDIND_I);
6078 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL, NULL));
6079 mono_mb_emit_stloc (mb, conv_arg);
6083 if (klass == mono_defaults.stringbuilder_class) {
6084 MonoMarshalNative encoding;
6086 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6089 g_assert (encoding == MONO_NATIVE_LPSTR || encoding == MONO_NATIVE_UTF8STR);
6091 g_assert (!t->byref);
6092 g_assert (encoding != -1);
6094 mono_mb_emit_ldarg (mb, argnum);
6095 mono_mb_emit_icall (mb, mono_string_utf8_to_builder2);
6096 mono_mb_emit_stloc (mb, conv_arg);
6100 /* The class can not have an automatic layout */
6101 if (mono_class_is_auto_layout (klass)) {
6102 mono_mb_emit_auto_layout_exception (mb, klass);
6106 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6107 mono_mb_emit_byte (mb, CEE_LDNULL);
6108 mono_mb_emit_stloc (mb, conv_arg);
6113 mono_mb_emit_ldarg (mb, argnum);
6117 /* Check for NULL and raise an exception */
6118 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6120 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6122 mono_mb_patch_branch (mb, pos2);
6123 mono_mb_emit_ldarg (mb, argnum);
6124 mono_mb_emit_byte (mb, CEE_LDIND_I);
6127 mono_mb_emit_stloc (mb, 0);
6129 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6130 mono_mb_emit_stloc (mb, conv_arg);
6132 mono_mb_emit_ldloc (mb, 0);
6133 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6135 /* Create and set dst */
6136 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6137 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6138 mono_mb_emit_stloc (mb, conv_arg);
6139 mono_mb_emit_ldloc (mb, conv_arg);
6140 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6141 mono_mb_emit_stloc (mb, 1);
6143 /* emit valuetype conversion code */
6144 emit_struct_conv (mb, klass, TRUE);
6146 mono_mb_patch_branch (mb, pos);
6149 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6150 if (klass->delegate) {
6153 mono_mb_emit_ldarg (mb, argnum);
6154 mono_mb_emit_ldloc (mb, conv_arg);
6155 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, &stind_op));
6156 mono_mb_emit_byte (mb, stind_op);
6162 /* Check for null */
6163 mono_mb_emit_ldloc (mb, conv_arg);
6164 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6165 mono_mb_emit_ldarg (mb, argnum);
6166 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6167 mono_mb_emit_byte (mb, CEE_STIND_REF);
6168 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6170 mono_mb_patch_branch (mb, pos);
6173 mono_mb_emit_ldloc (mb, conv_arg);
6174 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6175 mono_mb_emit_stloc (mb, 0);
6177 /* Allocate and set dest */
6178 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6179 mono_mb_emit_byte (mb, CEE_CONV_I);
6180 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6181 mono_mb_emit_stloc (mb, 1);
6183 /* Update argument pointer */
6184 mono_mb_emit_ldarg (mb, argnum);
6185 mono_mb_emit_ldloc (mb, 1);
6186 mono_mb_emit_byte (mb, CEE_STIND_I);
6188 /* emit valuetype conversion code */
6189 emit_struct_conv (mb, klass, FALSE);
6191 mono_mb_patch_branch (mb, pos2);
6192 } else if (klass == mono_defaults.stringbuilder_class) {
6193 // FIXME: What to do here ?
6195 /* byval [Out] marshalling */
6197 /* FIXME: Handle null */
6200 mono_mb_emit_ldloc (mb, conv_arg);
6201 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6202 mono_mb_emit_stloc (mb, 0);
6205 mono_mb_emit_ldarg (mb, argnum);
6206 mono_mb_emit_stloc (mb, 1);
6208 /* emit valuetype conversion code */
6209 emit_struct_conv (mb, klass, FALSE);
6213 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6214 if (klass->delegate) {
6215 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN, NULL));
6216 mono_mb_emit_stloc (mb, 3);
6220 /* The class can not have an automatic layout */
6221 if (mono_class_is_auto_layout (klass)) {
6222 mono_mb_emit_auto_layout_exception (mb, klass);
6226 mono_mb_emit_stloc (mb, 0);
6227 /* Check for null */
6228 mono_mb_emit_ldloc (mb, 0);
6229 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6230 mono_mb_emit_byte (mb, CEE_LDNULL);
6231 mono_mb_emit_stloc (mb, 3);
6232 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6234 mono_mb_patch_branch (mb, pos);
6237 mono_mb_emit_ldloc (mb, 0);
6238 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6239 mono_mb_emit_stloc (mb, 0);
6241 /* Allocate and set dest */
6242 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6243 mono_mb_emit_byte (mb, CEE_CONV_I);
6244 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
6245 mono_mb_emit_byte (mb, CEE_DUP);
6246 mono_mb_emit_stloc (mb, 1);
6247 mono_mb_emit_stloc (mb, 3);
6249 emit_struct_conv (mb, klass, FALSE);
6251 mono_mb_patch_branch (mb, pos2);
6255 g_assert_not_reached ();
6266 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
6267 MonoMarshalSpec *spec,
6268 int conv_arg, MonoType **conv_arg_type,
6269 MarshalAction action)
6271 MonoMethodBuilder *mb = m->mb;
6272 static MonoMethod *get_object_for_native_variant = NULL;
6273 static MonoMethod *get_native_variant_for_object = NULL;
6275 if (!get_object_for_native_variant)
6276 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
6277 g_assert (get_object_for_native_variant);
6279 if (!get_native_variant_for_object)
6280 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
6281 g_assert (get_native_variant_for_object);
6284 case MARSHAL_ACTION_CONV_IN: {
6285 conv_arg = mono_mb_add_local (mb, &mono_class_get_variant_class ()->byval_arg);
6288 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6290 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6292 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6295 mono_mb_emit_ldarg (mb, argnum);
6297 mono_mb_emit_byte(mb, CEE_LDIND_REF);
6298 mono_mb_emit_ldloc_addr (mb, conv_arg);
6299 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6303 case MARSHAL_ACTION_CONV_OUT: {
6304 static MonoMethod *variant_clear = NULL;
6307 variant_clear = mono_class_get_method_from_name (mono_class_get_variant_class (), "Clear", 0);
6308 g_assert (variant_clear);
6311 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6312 mono_mb_emit_ldarg (mb, argnum);
6313 mono_mb_emit_ldloc_addr (mb, conv_arg);
6314 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6315 mono_mb_emit_byte (mb, CEE_STIND_REF);
6318 mono_mb_emit_ldloc_addr (mb, conv_arg);
6319 mono_mb_emit_managed_call (mb, variant_clear, NULL);
6323 case MARSHAL_ACTION_PUSH:
6325 mono_mb_emit_ldloc_addr (mb, conv_arg);
6327 mono_mb_emit_ldloc (mb, conv_arg);
6330 case MARSHAL_ACTION_CONV_RESULT: {
6331 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6332 mono_mb_emit_exception_marshal_directive (mb, msg);
6336 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6337 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6340 *conv_arg_type = &mono_class_get_variant_class ()->this_arg;
6342 *conv_arg_type = &mono_class_get_variant_class ()->byval_arg;
6344 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && t->attrs & PARAM_ATTRIBUTE_OUT)
6348 mono_mb_emit_ldarg (mb, argnum);
6350 mono_mb_emit_ldarg_addr (mb, argnum);
6351 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
6352 mono_mb_emit_stloc (mb, conv_arg);
6356 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6357 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
6358 mono_mb_emit_ldloc (mb, conv_arg);
6359 mono_mb_emit_ldarg (mb, argnum);
6360 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
6365 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6366 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
6367 mono_mb_emit_exception_marshal_directive (mb, msg);
6372 g_assert_not_reached ();
6378 #endif /* DISABLE_COM */
6379 #endif /* DISABLE_JIT */
6382 mono_pinvoke_is_unicode (MonoMethodPInvoke *piinfo)
6384 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
6385 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
6387 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
6389 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
6401 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
6402 MonoMarshalSpec *spec,
6403 int conv_arg, MonoType **conv_arg_type,
6404 MarshalAction action)
6408 case MARSHAL_ACTION_CONV_IN:
6409 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6411 case MARSHAL_ACTION_MANAGED_CONV_IN:
6412 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6416 MonoMethodBuilder *mb = m->mb;
6417 MonoClass *klass = mono_class_from_mono_type (t);
6418 gboolean need_convert, need_free;
6419 MonoMarshalNative encoding;
6421 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6424 case MARSHAL_ACTION_CONV_IN:
6425 *conv_arg_type = &mono_defaults.object_class->byval_arg;
6426 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6428 if (klass->element_class->blittable) {
6429 mono_mb_emit_ldarg (mb, argnum);
6431 mono_mb_emit_byte (mb, CEE_LDIND_I);
6432 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY, NULL));
6433 mono_mb_emit_stloc (mb, conv_arg);
6436 guint32 label1, label2, label3;
6437 int index_var, src_var, dest_ptr, esize;
6438 MonoMarshalConv conv;
6439 gboolean is_string = FALSE;
6441 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6443 eklass = klass->element_class;
6445 if (eklass == mono_defaults.string_class) {
6447 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6449 else if (eklass == mono_defaults.stringbuilder_class) {
6451 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6454 conv = MONO_MARSHAL_CONV_INVALID;
6456 if (is_string && conv == MONO_MARSHAL_CONV_INVALID) {
6457 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
6458 mono_mb_emit_exception_marshal_directive (mb, msg);
6462 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6463 mono_mb_emit_ldarg (mb, argnum);
6465 mono_mb_emit_byte (mb, CEE_LDIND_I);
6466 mono_mb_emit_stloc (mb, src_var);
6469 mono_mb_emit_ldloc (mb, src_var);
6470 mono_mb_emit_stloc (mb, conv_arg);
6471 mono_mb_emit_ldloc (mb, src_var);
6472 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6475 esize = sizeof (gpointer);
6476 else if (eklass == mono_defaults.char_class) /*can't call mono_marshal_type_size since it causes all sorts of asserts*/
6477 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6479 esize = mono_class_native_size (eklass, NULL);
6481 /* allocate space for the native struct and store the address */
6482 mono_mb_emit_icon (mb, esize);
6483 mono_mb_emit_ldloc (mb, src_var);
6484 mono_mb_emit_byte (mb, CEE_LDLEN);
6486 if (eklass == mono_defaults.string_class) {
6487 /* Make the array bigger for the terminating null */
6488 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
6489 mono_mb_emit_byte (mb, CEE_ADD);
6491 mono_mb_emit_byte (mb, CEE_MUL);
6492 mono_mb_emit_byte (mb, CEE_PREFIX1);
6493 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6494 mono_mb_emit_stloc (mb, conv_arg);
6496 mono_mb_emit_ldloc (mb, conv_arg);
6497 mono_mb_emit_stloc (mb, dest_ptr);
6499 /* Emit marshalling loop */
6500 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6501 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6502 mono_mb_emit_stloc (mb, index_var);
6503 label2 = mono_mb_get_label (mb);
6504 mono_mb_emit_ldloc (mb, index_var);
6505 mono_mb_emit_ldloc (mb, src_var);
6506 mono_mb_emit_byte (mb, CEE_LDLEN);
6507 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6509 /* Emit marshalling code */
6513 mono_mb_emit_ldloc (mb, dest_ptr);
6514 mono_mb_emit_ldloc (mb, src_var);
6515 mono_mb_emit_ldloc (mb, index_var);
6516 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6517 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
6518 mono_mb_emit_byte (mb, stind_op);
6520 /* set the src_ptr */
6521 mono_mb_emit_ldloc (mb, src_var);
6522 mono_mb_emit_ldloc (mb, index_var);
6523 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6524 mono_mb_emit_stloc (mb, 0);
6527 mono_mb_emit_ldloc (mb, dest_ptr);
6528 mono_mb_emit_stloc (mb, 1);
6530 /* emit valuetype conversion code */
6531 emit_struct_conv_full (mb, eklass, FALSE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6534 mono_mb_emit_add_to_local (mb, index_var, 1);
6535 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
6537 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6539 mono_mb_patch_branch (mb, label3);
6541 if (eklass == mono_defaults.string_class) {
6542 /* Null terminate */
6543 mono_mb_emit_ldloc (mb, dest_ptr);
6544 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6545 mono_mb_emit_byte (mb, CEE_STIND_REF);
6548 mono_mb_patch_branch (mb, label1);
6553 case MARSHAL_ACTION_CONV_OUT:
6554 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
6555 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);
6556 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
6559 if ((t->attrs & PARAM_ATTRIBUTE_OUT) && spec && spec->native == MONO_NATIVE_LPARRAY && spec->data.array_data.param_num != -1) {
6560 int param_num = spec->data.array_data.param_num;
6561 MonoType *param_type;
6563 param_type = m->sig->params [param_num];
6565 if (param_type->byref && param_type->type != MONO_TYPE_I4) {
6566 char *msg = g_strdup ("Not implemented.");
6567 mono_mb_emit_exception_marshal_directive (mb, msg);
6572 mono_mb_emit_ldarg (mb, argnum);
6574 /* Create the managed array */
6575 mono_mb_emit_ldarg (mb, param_num);
6576 if (m->sig->params [param_num]->byref)
6577 // FIXME: Support other types
6578 mono_mb_emit_byte (mb, CEE_LDIND_I4);
6579 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6580 mono_mb_emit_op (mb, CEE_NEWARR, klass->element_class);
6581 /* Store into argument */
6582 mono_mb_emit_byte (mb, CEE_STIND_REF);
6586 if (need_convert || need_free) {
6587 /* FIXME: Optimize blittable case */
6589 guint32 label1, label2, label3;
6590 int index_var, src_ptr, loc, esize;
6592 eklass = klass->element_class;
6593 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
6594 esize = sizeof (gpointer);
6595 else if (eklass == mono_defaults.char_class)
6596 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
6598 esize = mono_class_native_size (eklass, NULL);
6599 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6600 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6603 mono_mb_emit_ldarg (mb, argnum);
6605 mono_mb_emit_byte (mb, CEE_LDIND_I);
6606 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6608 mono_mb_emit_ldloc (mb, conv_arg);
6609 mono_mb_emit_stloc (mb, src_ptr);
6611 /* Emit marshalling loop */
6612 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6613 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6614 mono_mb_emit_stloc (mb, index_var);
6615 label2 = mono_mb_get_label (mb);
6616 mono_mb_emit_ldloc (mb, index_var);
6617 mono_mb_emit_ldarg (mb, argnum);
6619 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6620 mono_mb_emit_byte (mb, CEE_LDLEN);
6621 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6623 /* Emit marshalling code */
6625 if (eklass == mono_defaults.stringbuilder_class) {
6626 gboolean need_free2;
6627 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
6629 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6632 mono_mb_emit_ldarg (mb, argnum);
6634 mono_mb_emit_byte (mb, CEE_LDIND_I);
6635 mono_mb_emit_ldloc (mb, index_var);
6636 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
6639 mono_mb_emit_ldloc (mb, src_ptr);
6640 mono_mb_emit_byte (mb, CEE_LDIND_I);
6642 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6646 mono_mb_emit_ldloc (mb, src_ptr);
6647 mono_mb_emit_byte (mb, CEE_LDIND_I);
6649 mono_mb_emit_icall (mb, mono_marshal_free);
6652 else if (eklass == mono_defaults.string_class) {
6655 mono_mb_emit_ldloc (mb, src_ptr);
6656 mono_mb_emit_byte (mb, CEE_LDIND_I);
6658 mono_mb_emit_icall (mb, mono_marshal_free);
6663 /* set the src_ptr */
6664 mono_mb_emit_ldloc (mb, src_ptr);
6665 mono_mb_emit_stloc (mb, 0);
6668 mono_mb_emit_ldarg (mb, argnum);
6670 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6671 mono_mb_emit_ldloc (mb, index_var);
6672 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
6673 mono_mb_emit_stloc (mb, 1);
6675 /* emit valuetype conversion code */
6676 emit_struct_conv_full (mb, eklass, TRUE, 0, eklass == mono_defaults.char_class ? encoding : (MonoMarshalNative)-1);
6680 mono_mb_emit_ldloc (mb, src_ptr);
6681 mono_mb_emit_stloc (mb, loc);
6682 mono_mb_emit_ldloc (mb, loc);
6684 emit_struct_free (mb, eklass, loc);
6688 mono_mb_emit_add_to_local (mb, index_var, 1);
6689 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6691 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6693 mono_mb_patch_branch (mb, label1);
6694 mono_mb_patch_branch (mb, label3);
6697 if (klass->element_class->blittable) {
6698 /* free memory allocated (if any) by MONO_MARSHAL_CONV_ARRAY_LPARRAY */
6700 mono_mb_emit_ldarg (mb, argnum);
6702 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6703 mono_mb_emit_ldloc (mb, conv_arg);
6704 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_FREE_LPARRAY, NULL));
6709 case MARSHAL_ACTION_PUSH:
6711 mono_mb_emit_ldloc_addr (mb, conv_arg);
6713 mono_mb_emit_ldloc (mb, conv_arg);
6716 case MARSHAL_ACTION_CONV_RESULT:
6717 /* fixme: we need conversions here */
6718 mono_mb_emit_stloc (mb, 3);
6721 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6723 guint32 label1, label2, label3;
6724 int index_var, src_ptr, esize, param_num, num_elem;
6725 MonoMarshalConv conv;
6726 gboolean is_string = FALSE;
6728 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6729 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6732 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
6733 mono_mb_emit_exception_marshal_directive (mb, msg);
6737 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
6738 mono_mb_emit_exception_marshal_directive (mb, msg);
6741 if (spec->native != MONO_NATIVE_LPARRAY) {
6742 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
6743 mono_mb_emit_exception_marshal_directive (mb, msg);
6747 /* FIXME: t is from the method which is wrapped, not the delegate type */
6748 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
6750 param_num = spec->data.array_data.param_num;
6751 num_elem = spec->data.array_data.num_elem;
6752 if (spec->data.array_data.elem_mult == 0)
6753 /* param_num is not specified */
6756 if (param_num == -1) {
6757 if (num_elem <= 0) {
6758 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
6759 mono_mb_emit_exception_marshal_directive (mb, msg);
6764 /* FIXME: Optimize blittable case */
6766 eklass = klass->element_class;
6767 if (eklass == mono_defaults.string_class) {
6769 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6771 else if (eklass == mono_defaults.stringbuilder_class) {
6773 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6776 conv = MONO_MARSHAL_CONV_INVALID;
6778 mono_marshal_load_type_info (eklass);
6781 esize = sizeof (gpointer);
6783 esize = mono_class_native_size (eklass, NULL);
6784 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6786 mono_mb_emit_byte (mb, CEE_LDNULL);
6787 mono_mb_emit_stloc (mb, conv_arg);
6789 /* Check param index */
6790 if (param_num != -1) {
6791 if (param_num >= m->sig->param_count) {
6792 char *msg = g_strdup ("Array size control parameter index is out of range.");
6793 mono_mb_emit_exception_marshal_directive (mb, msg);
6796 switch (m->sig->params [param_num]->type) {
6809 char *msg = g_strdup ("Array size control parameter must be an integral type.");
6810 mono_mb_emit_exception_marshal_directive (mb, msg);
6817 mono_mb_emit_ldarg (mb, argnum);
6818 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6820 mono_mb_emit_ldarg (mb, argnum);
6821 mono_mb_emit_stloc (mb, src_ptr);
6823 /* Create managed array */
6825 * The LPArray marshalling spec says that sometimes param_num starts
6826 * from 1, sometimes it starts from 0. But MS seems to allways start
6830 if (param_num == -1) {
6831 mono_mb_emit_icon (mb, num_elem);
6833 mono_mb_emit_ldarg (mb, param_num);
6835 mono_mb_emit_icon (mb, num_elem);
6836 mono_mb_emit_byte (mb, CEE_ADD);
6838 mono_mb_emit_byte (mb, CEE_CONV_OVF_I);
6841 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
6842 mono_mb_emit_stloc (mb, conv_arg);
6844 if (eklass->blittable) {
6845 mono_mb_emit_ldloc (mb, conv_arg);
6846 mono_mb_emit_byte (mb, CEE_CONV_I);
6847 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6848 mono_mb_emit_byte (mb, CEE_ADD);
6849 mono_mb_emit_ldarg (mb, argnum);
6850 mono_mb_emit_ldloc (mb, conv_arg);
6851 mono_mb_emit_byte (mb, CEE_LDLEN);
6852 mono_mb_emit_icon (mb, esize);
6853 mono_mb_emit_byte (mb, CEE_MUL);
6854 mono_mb_emit_byte (mb, CEE_PREFIX1);
6855 mono_mb_emit_byte (mb, CEE_CPBLK);
6856 mono_mb_patch_branch (mb, label1);
6860 /* Emit marshalling loop */
6861 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6862 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6863 mono_mb_emit_stloc (mb, index_var);
6864 label2 = mono_mb_get_label (mb);
6865 mono_mb_emit_ldloc (mb, index_var);
6866 mono_mb_emit_ldloc (mb, conv_arg);
6867 mono_mb_emit_byte (mb, CEE_LDLEN);
6868 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6870 /* Emit marshalling code */
6872 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6874 mono_mb_emit_ldloc (mb, conv_arg);
6875 mono_mb_emit_ldloc (mb, index_var);
6877 mono_mb_emit_ldloc (mb, src_ptr);
6878 mono_mb_emit_byte (mb, CEE_LDIND_I);
6880 mono_mb_emit_icall (mb, conv_to_icall (conv, NULL));
6881 mono_mb_emit_byte (mb, CEE_STELEM_REF);
6884 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
6885 mono_mb_emit_exception_marshal_directive (mb, msg);
6889 mono_mb_emit_add_to_local (mb, index_var, 1);
6890 mono_mb_emit_add_to_local (mb, src_ptr, esize);
6892 mono_mb_emit_branch_label (mb, CEE_BR, label2);
6894 mono_mb_patch_branch (mb, label1);
6895 mono_mb_patch_branch (mb, label3);
6899 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6901 guint32 label1, label2, label3;
6902 int index_var, dest_ptr, esize, param_num, num_elem;
6903 MonoMarshalConv conv;
6904 gboolean is_string = FALSE;
6907 /* Already handled in CONV_IN */
6910 /* These are already checked in CONV_IN */
6911 g_assert (!t->byref);
6912 g_assert (spec->native == MONO_NATIVE_LPARRAY);
6913 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
6915 param_num = spec->data.array_data.param_num;
6916 num_elem = spec->data.array_data.num_elem;
6918 if (spec->data.array_data.elem_mult == 0)
6919 /* param_num is not specified */
6922 if (param_num == -1) {
6923 if (num_elem <= 0) {
6924 g_assert_not_reached ();
6928 /* FIXME: Optimize blittable case */
6930 eklass = klass->element_class;
6931 if (eklass == mono_defaults.string_class) {
6933 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
6935 else if (eklass == mono_defaults.stringbuilder_class) {
6937 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6940 conv = MONO_MARSHAL_CONV_INVALID;
6942 mono_marshal_load_type_info (eklass);
6945 esize = sizeof (gpointer);
6947 esize = mono_class_native_size (eklass, NULL);
6949 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6952 mono_mb_emit_ldloc (mb, conv_arg);
6953 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
6955 mono_mb_emit_ldarg (mb, argnum);
6956 mono_mb_emit_stloc (mb, dest_ptr);
6958 if (eklass->blittable) {
6960 mono_mb_emit_ldarg (mb, argnum);
6962 mono_mb_emit_ldloc (mb, conv_arg);
6963 mono_mb_emit_byte (mb, CEE_CONV_I);
6964 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
6965 mono_mb_emit_byte (mb, CEE_ADD);
6967 mono_mb_emit_ldloc (mb, conv_arg);
6968 mono_mb_emit_byte (mb, CEE_LDLEN);
6969 mono_mb_emit_icon (mb, esize);
6970 mono_mb_emit_byte (mb, CEE_MUL);
6971 mono_mb_emit_byte (mb, CEE_PREFIX1);
6972 mono_mb_emit_byte (mb, CEE_CPBLK);
6976 /* Emit marshalling loop */
6977 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6978 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6979 mono_mb_emit_stloc (mb, index_var);
6980 label2 = mono_mb_get_label (mb);
6981 mono_mb_emit_ldloc (mb, index_var);
6982 mono_mb_emit_ldloc (mb, conv_arg);
6983 mono_mb_emit_byte (mb, CEE_LDLEN);
6984 label3 = mono_mb_emit_branch (mb, CEE_BGE);
6986 /* Emit marshalling code */
6989 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
6992 mono_mb_emit_ldloc (mb, dest_ptr);
6995 mono_mb_emit_ldloc (mb, conv_arg);
6996 mono_mb_emit_ldloc (mb, index_var);
6998 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7000 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7001 mono_mb_emit_byte (mb, stind_op);
7004 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7005 mono_mb_emit_exception_marshal_directive (mb, msg);
7009 mono_mb_emit_add_to_local (mb, index_var, 1);
7010 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7012 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7014 mono_mb_patch_branch (mb, label1);
7015 mono_mb_patch_branch (mb, label3);
7019 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7021 guint32 label1, label2, label3;
7022 int index_var, src, dest, esize;
7023 MonoMarshalConv conv = MONO_MARSHAL_CONV_INVALID;
7024 gboolean is_string = FALSE;
7026 g_assert (!t->byref);
7028 eklass = klass->element_class;
7030 mono_marshal_load_type_info (eklass);
7032 if (eklass == mono_defaults.string_class) {
7034 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7037 g_assert_not_reached ();
7041 esize = sizeof (gpointer);
7042 else if (eklass == mono_defaults.char_class)
7043 esize = mono_pinvoke_is_unicode (m->piinfo) ? 2 : 1;
7045 esize = mono_class_native_size (eklass, NULL);
7047 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7048 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7050 mono_mb_emit_stloc (mb, src);
7051 mono_mb_emit_ldloc (mb, src);
7052 mono_mb_emit_stloc (mb, 3);
7054 /* Check for null */
7055 mono_mb_emit_ldloc (mb, src);
7056 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7058 /* Allocate native array */
7059 mono_mb_emit_icon (mb, esize);
7060 mono_mb_emit_ldloc (mb, src);
7061 mono_mb_emit_byte (mb, CEE_LDLEN);
7063 if (eklass == mono_defaults.string_class) {
7064 /* Make the array bigger for the terminating null */
7065 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7066 mono_mb_emit_byte (mb, CEE_ADD);
7068 mono_mb_emit_byte (mb, CEE_MUL);
7069 mono_mb_emit_icall (mb, ves_icall_marshal_alloc);
7070 mono_mb_emit_stloc (mb, dest);
7071 mono_mb_emit_ldloc (mb, dest);
7072 mono_mb_emit_stloc (mb, 3);
7074 /* Emit marshalling loop */
7075 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7076 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7077 mono_mb_emit_stloc (mb, index_var);
7078 label2 = mono_mb_get_label (mb);
7079 mono_mb_emit_ldloc (mb, index_var);
7080 mono_mb_emit_ldloc (mb, src);
7081 mono_mb_emit_byte (mb, CEE_LDLEN);
7082 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7084 /* Emit marshalling code */
7087 g_assert (conv != MONO_MARSHAL_CONV_INVALID);
7090 mono_mb_emit_ldloc (mb, dest);
7093 mono_mb_emit_ldloc (mb, src);
7094 mono_mb_emit_ldloc (mb, index_var);
7096 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7098 mono_mb_emit_icall (mb, conv_to_icall (conv, &stind_op));
7099 mono_mb_emit_byte (mb, stind_op);
7102 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7103 mono_mb_emit_exception_marshal_directive (mb, msg);
7107 mono_mb_emit_add_to_local (mb, index_var, 1);
7108 mono_mb_emit_add_to_local (mb, dest, esize);
7110 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7112 mono_mb_patch_branch (mb, label3);
7113 mono_mb_patch_branch (mb, label1);
7117 g_assert_not_reached ();
7124 marshal_boolean_conv_in_get_local_type (MonoMarshalSpec *spec, guint8 *ldc_op /*out*/)
7127 return &mono_defaults.int32_class->byval_arg;
7129 switch (spec->native) {
7130 case MONO_NATIVE_I1:
7131 case MONO_NATIVE_U1:
7132 return &mono_defaults.byte_class->byval_arg;
7133 case MONO_NATIVE_VARIANTBOOL:
7134 if (ldc_op) *ldc_op = CEE_LDC_I4_M1;
7135 return &mono_defaults.int16_class->byval_arg;
7136 case MONO_NATIVE_BOOLEAN:
7137 return &mono_defaults.int32_class->byval_arg;
7139 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7140 return &mono_defaults.int32_class->byval_arg;
7146 marshal_boolean_managed_conv_in_get_conv_arg_class (MonoMarshalSpec *spec, guint8 *ldop/*out*/)
7148 MonoClass* conv_arg_class = mono_defaults.int32_class;
7150 switch (spec->native) {
7151 case MONO_NATIVE_I1:
7152 case MONO_NATIVE_U1:
7153 conv_arg_class = mono_defaults.byte_class;
7154 if (ldop) *ldop = CEE_LDIND_I1;
7156 case MONO_NATIVE_VARIANTBOOL:
7157 conv_arg_class = mono_defaults.int16_class;
7158 if (ldop) *ldop = CEE_LDIND_I2;
7160 case MONO_NATIVE_BOOLEAN:
7163 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7166 return conv_arg_class;
7170 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7171 MonoMarshalSpec *spec,
7172 int conv_arg, MonoType **conv_arg_type,
7173 MarshalAction action)
7177 case MARSHAL_ACTION_CONV_IN:
7179 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7181 *conv_arg_type = marshal_boolean_conv_in_get_local_type (spec, NULL);
7184 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7185 MonoClass* conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, NULL);
7187 *conv_arg_type = &conv_arg_class->this_arg;
7189 *conv_arg_type = &conv_arg_class->byval_arg;
7195 MonoMethodBuilder *mb = m->mb;
7198 case MARSHAL_ACTION_CONV_IN: {
7199 MonoType *local_type;
7201 guint8 ldc_op = CEE_LDC_I4_1;
7203 local_type = marshal_boolean_conv_in_get_local_type (spec, &ldc_op);
7205 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7207 *conv_arg_type = local_type;
7208 conv_arg = mono_mb_add_local (mb, local_type);
7210 mono_mb_emit_ldarg (mb, argnum);
7212 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7213 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7214 mono_mb_emit_byte (mb, ldc_op);
7215 mono_mb_emit_stloc (mb, conv_arg);
7216 mono_mb_patch_branch (mb, label_false);
7221 case MARSHAL_ACTION_CONV_OUT:
7223 int label_false, label_end;
7227 mono_mb_emit_ldarg (mb, argnum);
7228 mono_mb_emit_ldloc (mb, conv_arg);
7230 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7231 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7233 label_end = mono_mb_emit_branch (mb, CEE_BR);
7234 mono_mb_patch_branch (mb, label_false);
7235 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7236 mono_mb_patch_branch (mb, label_end);
7238 mono_mb_emit_byte (mb, CEE_STIND_I1);
7242 case MARSHAL_ACTION_PUSH:
7244 mono_mb_emit_ldloc_addr (mb, conv_arg);
7246 mono_mb_emit_ldloc (mb, conv_arg);
7248 mono_mb_emit_ldarg (mb, argnum);
7251 case MARSHAL_ACTION_CONV_RESULT:
7252 /* maybe we need to make sure that it fits within 8 bits */
7253 mono_mb_emit_stloc (mb, 3);
7256 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7257 MonoClass* conv_arg_class = mono_defaults.int32_class;
7258 guint8 ldop = CEE_LDIND_I4;
7259 int label_null, label_false;
7261 conv_arg_class = marshal_boolean_managed_conv_in_get_conv_arg_class (spec, &ldop);
7262 conv_arg = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7265 *conv_arg_type = &conv_arg_class->this_arg;
7267 *conv_arg_type = &conv_arg_class->byval_arg;
7270 mono_mb_emit_ldarg (mb, argnum);
7274 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7275 mono_mb_emit_ldarg (mb, argnum);
7276 mono_mb_emit_byte (mb, ldop);
7280 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7281 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7282 mono_mb_emit_stloc (mb, conv_arg);
7283 mono_mb_patch_branch (mb, label_false);
7286 mono_mb_patch_branch (mb, label_null);
7290 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7291 guint8 stop = CEE_STIND_I4;
7292 guint8 ldc_op = CEE_LDC_I4_1;
7293 int label_null,label_false, label_end;;
7298 switch (spec->native) {
7299 case MONO_NATIVE_I1:
7300 case MONO_NATIVE_U1:
7301 stop = CEE_STIND_I1;
7303 case MONO_NATIVE_VARIANTBOOL:
7304 stop = CEE_STIND_I2;
7305 ldc_op = CEE_LDC_I4_M1;
7313 mono_mb_emit_ldarg (mb, argnum);
7314 label_null = mono_mb_emit_branch (mb, CEE_BRFALSE);
7316 mono_mb_emit_ldarg (mb, argnum);
7317 mono_mb_emit_ldloc (mb, conv_arg);
7319 label_false = mono_mb_emit_branch (mb, CEE_BRFALSE);
7320 mono_mb_emit_byte (mb, ldc_op);
7321 label_end = mono_mb_emit_branch (mb, CEE_BR);
7323 mono_mb_patch_branch (mb, label_false);
7324 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7325 mono_mb_patch_branch (mb, label_end);
7327 mono_mb_emit_byte (mb, stop);
7328 mono_mb_patch_branch (mb, label_null);
7333 g_assert_not_reached ();
7340 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7341 MonoMarshalSpec *spec, int conv_arg,
7342 MonoType **conv_arg_type, MarshalAction action)
7345 MonoMethodBuilder *mb = m->mb;
7348 case MARSHAL_ACTION_CONV_IN:
7349 /* MS seems to allow this in some cases, ie. bxc #158 */
7351 if (MONO_TYPE_ISSTRUCT (t->data.type) && !mono_class_from_mono_type (t->data.type)->blittable) {
7352 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7353 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7358 case MARSHAL_ACTION_PUSH:
7359 mono_mb_emit_ldarg (mb, argnum);
7362 case MARSHAL_ACTION_CONV_RESULT:
7363 /* no conversions necessary */
7364 mono_mb_emit_stloc (mb, 3);
7375 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7376 MonoMarshalSpec *spec, int conv_arg,
7377 MonoType **conv_arg_type, MarshalAction action)
7380 MonoMethodBuilder *mb = m->mb;
7383 case MARSHAL_ACTION_PUSH:
7384 /* fixme: dont know how to marshal that. We cant simply
7385 * convert it to a one byte UTF8 character, because an
7386 * unicode character may need more that one byte in UTF8 */
7387 mono_mb_emit_ldarg (mb, argnum);
7390 case MARSHAL_ACTION_CONV_RESULT:
7391 /* fixme: we need conversions here */
7392 mono_mb_emit_stloc (mb, 3);
7403 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7404 MonoMarshalSpec *spec, int conv_arg,
7405 MonoType **conv_arg_type, MarshalAction action)
7408 MonoMethodBuilder *mb = m->mb;
7411 case MARSHAL_ACTION_PUSH:
7412 mono_mb_emit_ldarg (mb, argnum);
7415 case MARSHAL_ACTION_CONV_RESULT:
7416 /* no conversions necessary */
7417 mono_mb_emit_stloc (mb, 3);
7428 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7429 MonoMarshalSpec *spec, int conv_arg,
7430 MonoType **conv_arg_type, MarshalAction action)
7432 /* Ensure that we have marshalling info for this param */
7433 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7435 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7436 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7438 if (spec && spec->native == MONO_NATIVE_ASANY)
7439 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7442 case MONO_TYPE_VALUETYPE:
7443 if (t->data.klass == mono_defaults.handleref_class)
7444 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7446 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7447 case MONO_TYPE_STRING:
7448 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7449 case MONO_TYPE_CLASS:
7450 case MONO_TYPE_OBJECT:
7451 #if !defined(DISABLE_COM) && !defined(DISABLE_JIT)
7452 if (spec && spec->native == MONO_NATIVE_STRUCT)
7453 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7456 #if !defined(DISABLE_COM)
7457 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
7458 spec->native == MONO_NATIVE_IDISPATCH ||
7459 spec->native == MONO_NATIVE_INTERFACE))
7460 return mono_cominterop_emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7461 if (spec && (spec->native == MONO_NATIVE_SAFEARRAY) &&
7462 (spec->data.safearray_data.elem_type == MONO_VARIANT_VARIANT) &&
7463 ((action == MARSHAL_ACTION_CONV_OUT) || (action == MARSHAL_ACTION_CONV_IN) || (action == MARSHAL_ACTION_PUSH)))
7464 return mono_cominterop_emit_marshal_safearray (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7467 if (mono_class_try_get_safehandle_class () != NULL && t->data.klass &&
7468 mono_class_is_subclass_of (t->data.klass, mono_class_try_get_safehandle_class (), FALSE))
7469 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7471 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7472 case MONO_TYPE_ARRAY:
7473 case MONO_TYPE_SZARRAY:
7474 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7475 case MONO_TYPE_BOOLEAN:
7476 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7478 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7479 case MONO_TYPE_CHAR:
7480 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7493 case MONO_TYPE_FNPTR:
7494 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7495 case MONO_TYPE_GENERICINST:
7496 if (mono_type_generic_inst_is_valuetype (t))
7497 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7499 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7505 /* How the arguments of an icall should be wrapped */
7507 /* Don't wrap at all, pass the argument as is */
7508 ICALL_HANDLES_WRAP_NONE,
7509 /* Wrap the argument in an object handle, pass the handle to the icall */
7510 ICALL_HANDLES_WRAP_OBJ,
7511 /* Wrap the argument in an object handle, pass the handle to the icall,
7512 write the value out from the handle when the icall returns */
7513 ICALL_HANDLES_WRAP_OBJ_INOUT,
7514 /* Wrap the argument (a valuetype reference) in a handle to pin its enclosing object,
7515 but pass the raw reference to the icall */
7516 ICALL_HANDLES_WRAP_VALUETYPE_REF,
7520 IcallHandlesWrap wrap;
7521 /* if wrap is NONE or OBJ or VALUETYPE_REF, this is not meaningful.
7522 if wrap is OBJ_INOUT it's the local var that holds the MonoObjectHandle.
7525 } IcallHandlesLocal;
7528 * Describes how to wrap the given parameter.
7531 static IcallHandlesWrap
7532 signature_param_uses_handles (MonoMethodSignature *sig, int param)
7534 if (MONO_TYPE_IS_REFERENCE (sig->params [param])) {
7535 return mono_signature_param_is_out (sig, param) ? ICALL_HANDLES_WRAP_OBJ_INOUT : ICALL_HANDLES_WRAP_OBJ;
7536 } else if (mono_type_is_byref (sig->params [param]))
7537 return ICALL_HANDLES_WRAP_VALUETYPE_REF;
7539 return ICALL_HANDLES_WRAP_NONE;
7545 * mono_marshal_emit_native_wrapper:
7546 * \param image the image to use for looking up custom marshallers
7547 * \param sig The signature of the native function
7548 * \param piinfo Marshalling information
7549 * \param mspecs Marshalling information
7550 * \param aot whenever the created method will be compiled by the AOT compiler
7551 * \param method if non-NULL, the pinvoke method to call
7552 * \param check_exceptions Whenever to check for pending exceptions after the native call
7553 * \param func_param the function to call is passed as a boxed IntPtr as the first parameter
7555 * generates IL code for the pinvoke wrapper, the generated code calls \p func .
7558 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)
7560 EmitMarshalContext m;
7561 MonoMethodSignature *csig;
7563 int i, argnum, *tmp_locals;
7564 int type, param_shift = 0;
7565 int coop_gc_stack_dummy, coop_gc_var;
7567 memset (&m, 0, sizeof (m));
7572 /* we copy the signature, so that we can set pinvoke to 0 */
7574 /* The function address is passed as the first argument */
7575 g_assert (!sig->hasthis);
7578 csig = mono_metadata_signature_dup_full (mb->method->klass->image, sig);
7586 /* we allocate local for use with emit_struct_conv() */
7587 /* allocate local 0 (pointer) src_ptr */
7588 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7589 /* allocate local 1 (pointer) dst_ptr */
7590 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7591 /* allocate local 2 (boolean) delete_old */
7592 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
7594 /* delete_old = FALSE */
7595 mono_mb_emit_icon (mb, 0);
7596 mono_mb_emit_stloc (mb, 2);
7598 if (!MONO_TYPE_IS_VOID (sig->ret)) {
7599 /* allocate local 3 to store the return value */
7600 mono_mb_add_local (mb, sig->ret);
7603 if (mono_threads_is_coop_enabled ()) {
7604 /* local 4, dummy local used to get a stack address for suspend funcs */
7605 coop_gc_stack_dummy = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7606 /* local 5, the local to be used when calling the suspend funcs */
7607 coop_gc_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7611 * cookie = mono_threads_enter_gc_safe_region_unbalanced (ref dummy);
7613 * ret = method (...);
7615 * mono_threads_exit_gc_safe_region_unbalanced (cookie, ref dummy);
7622 if (MONO_TYPE_ISSTRUCT (sig->ret))
7623 m.vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7625 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
7626 /* Return type custom marshaling */
7628 * Since we can't determine the return type of the unmanaged function,
7629 * we assume it returns a pointer, and pass that pointer to
7630 * MarshalNativeToManaged.
7632 csig->ret = &mono_defaults.int_class->byval_arg;
7635 /* we first do all conversions */
7636 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
7637 m.orig_conv_args = (int *)alloca (sizeof (int) * (sig->param_count + 1));
7639 for (i = 0; i < sig->param_count; i ++) {
7640 tmp_locals [i] = emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
7643 // In coop mode need to register blocking state during native call
7644 if (mono_threads_is_coop_enabled ()) {
7645 // Perform an extra, early lookup of the function address, so any exceptions
7646 // potentially resulting from the lookup occur before entering blocking mode.
7647 if (!func_param && !MONO_CLASS_IS_IMPORT (mb->method->klass) && aot) {
7648 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7649 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7650 mono_mb_emit_byte (mb, CEE_POP); // Result not needed yet
7653 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7654 mono_mb_emit_icall (mb, mono_threads_enter_gc_safe_region_unbalanced);
7655 mono_mb_emit_stloc (mb, coop_gc_var);
7658 /* push all arguments */
7661 mono_mb_emit_byte (mb, CEE_LDARG_0);
7663 for (i = 0; i < sig->param_count; i++) {
7664 emit_marshal (&m, i + param_shift, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
7667 /* call the native method */
7669 mono_mb_emit_byte (mb, CEE_LDARG_0);
7670 mono_mb_emit_op (mb, CEE_UNBOX, mono_defaults.int_class);
7671 mono_mb_emit_byte (mb, CEE_LDIND_I);
7672 mono_mb_emit_calli (mb, csig);
7673 } else if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
7675 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
7677 g_assert_not_reached ();
7681 /* Reuse the ICALL_ADDR opcode for pinvokes too */
7682 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7683 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
7684 mono_mb_emit_calli (mb, csig);
7686 mono_mb_emit_native_call (mb, csig, func);
7690 /* Set LastError if needed */
7691 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
7694 static MonoMethodSignature *get_last_error_sig = NULL;
7695 if (!get_last_error_sig) {
7696 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
7697 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
7698 get_last_error_sig->pinvoke = 1;
7702 * Have to call GetLastError () early and without a wrapper, since various runtime components could
7703 * clobber its value.
7705 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
7706 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7708 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7709 mono_mb_emit_byte (mb, CEE_MONO_GET_LAST_ERROR);
7710 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
7713 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
7717 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
7718 MonoClass *klass = mono_class_from_mono_type (sig->ret);
7719 mono_class_init (klass);
7720 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
7721 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
7722 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
7723 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
7724 mono_mb_emit_stloc (mb, m.vtaddr_var);
7728 /* Unblock before converting the result, since that can involve calls into the runtime */
7729 if (mono_threads_is_coop_enabled ()) {
7730 mono_mb_emit_ldloc (mb, coop_gc_var);
7731 mono_mb_emit_ldloc_addr (mb, coop_gc_stack_dummy);
7732 mono_mb_emit_icall (mb, mono_threads_exit_gc_safe_region_unbalanced);
7735 /* convert the result */
7736 if (!sig->ret->byref) {
7737 MonoMarshalSpec *spec = mspecs [0];
7738 type = sig->ret->type;
7740 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
7741 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7745 case MONO_TYPE_VOID:
7747 case MONO_TYPE_VALUETYPE:
7748 klass = sig->ret->data.klass;
7749 if (klass->enumtype) {
7750 type = mono_class_enum_basetype (sig->ret->data.klass)->type;
7753 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7767 case MONO_TYPE_FNPTR:
7768 case MONO_TYPE_STRING:
7769 case MONO_TYPE_CLASS:
7770 case MONO_TYPE_OBJECT:
7771 case MONO_TYPE_BOOLEAN:
7772 case MONO_TYPE_ARRAY:
7773 case MONO_TYPE_SZARRAY:
7774 case MONO_TYPE_CHAR:
7776 case MONO_TYPE_GENERICINST:
7777 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
7779 case MONO_TYPE_TYPEDBYREF:
7781 g_warning ("return type 0x%02x unknown", sig->ret->type);
7782 g_assert_not_reached ();
7786 mono_mb_emit_stloc (mb, 3);
7790 * Need to call this after converting the result since MONO_VTADDR needs
7791 * to be adjacent to the call instruction.
7793 if (check_exceptions)
7794 emit_thread_interrupt_checkpoint (mb);
7796 /* we need to convert byref arguments back and free string arrays */
7797 for (i = 0; i < sig->param_count; i++) {
7798 MonoType *t = sig->params [i];
7799 MonoMarshalSpec *spec = mspecs [i + 1];
7801 argnum = i + param_shift;
7803 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
7804 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7809 case MONO_TYPE_STRING:
7810 case MONO_TYPE_VALUETYPE:
7811 case MONO_TYPE_CLASS:
7812 case MONO_TYPE_OBJECT:
7813 case MONO_TYPE_SZARRAY:
7814 case MONO_TYPE_BOOLEAN:
7815 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
7822 if (!MONO_TYPE_IS_VOID(sig->ret))
7823 mono_mb_emit_ldloc (mb, 3);
7825 mono_mb_emit_byte (mb, CEE_RET);
7827 #endif /* DISABLE_JIT */
7830 * mono_marshal_get_native_wrapper:
7831 * \param method The \c MonoMethod to wrap.
7832 * \param check_exceptions Whenever to check for pending exceptions
7834 * Generates IL code for the pinvoke wrapper. The generated method
7835 * calls the unmanaged code in \c piinfo->addr.
7838 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions, gboolean aot)
7840 MonoMethodSignature *sig, *csig;
7841 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
7842 MonoMethodBuilder *mb;
7843 MonoMarshalSpec **mspecs;
7846 gboolean pinvoke = FALSE;
7849 const char *exc_class = "MissingMethodException";
7850 const char *exc_arg = NULL;
7853 g_assert (method != NULL);
7854 g_assert (mono_method_signature (method)->pinvoke);
7856 GHashTable **cache_ptr;
7859 if (check_exceptions)
7860 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_check_cache;
7862 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_aot_cache;
7864 if (check_exceptions)
7865 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_check_cache;
7867 cache_ptr = &mono_method_get_wrapper_cache (method)->native_wrapper_cache;
7870 cache = get_cache (cache_ptr, mono_aligned_addr_hash, NULL);
7872 if ((res = mono_marshal_find_in_cache (cache, method)))
7875 if (MONO_CLASS_IS_IMPORT (method->klass)) {
7876 /* The COM code is not AOT compatible, it calls mono_custom_attrs_get_attr_checked () */
7880 return mono_cominterop_get_native_wrapper (method);
7882 g_assert_not_reached ();
7886 sig = mono_method_signature (method);
7888 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
7889 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
7892 if (!piinfo->addr) {
7894 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
7895 exc_arg = "Method contains unsupported native code";
7897 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
7899 piinfo->addr = mono_lookup_internal_call (method);
7903 /* hack - redirect certain string constructors to CreateString */
7904 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
7905 g_assert (!pinvoke);
7906 g_assert (method->string_ctor);
7907 g_assert (sig->hasthis);
7909 /* CreateString returns a value */
7910 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7911 csig->ret = &mono_defaults.string_class->byval_arg;
7915 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
7916 if (!strcmp ("CreateString", res->name) &&
7917 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
7920 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
7921 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
7923 /* create a wrapper to preserve .ctor in stack trace */
7924 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
7927 mono_mb_emit_byte (mb, CEE_LDARG_0);
7928 for (i = 1; i <= csig->param_count; i++)
7929 mono_mb_emit_ldarg (mb, i);
7930 mono_mb_emit_managed_call (mb, res, NULL);
7931 mono_mb_emit_byte (mb, CEE_RET);
7934 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRING_CTOR);
7935 info->d.string_ctor.method = method;
7937 /* use native_wrapper_cache because internal calls are looked up there */
7938 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7939 csig->param_count + 1, info, NULL);
7946 /* exception will be thrown */
7947 piinfo->addr = NULL;
7948 g_warning ("cannot find CreateString for .ctor");
7951 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
7953 mb->method->save_lmf = 1;
7956 * In AOT mode and embedding scenarios, it is possible that the icall is not
7957 * registered in the runtime doing the AOT compilation.
7959 if (!piinfo->addr && !aot) {
7961 mono_mb_emit_exception (mb, exc_class, exc_arg);
7963 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
7964 info->d.managed_to_native.method = method;
7966 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7968 res = mono_mb_create_and_cache_full (cache, method, mb, csig,
7969 csig->param_count + 16, info, NULL);
7975 /* internal calls: we simply push all arguments and call the method (no conversions) */
7976 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
7978 csig = mono_metadata_signature_dup_add_this (method->klass->image, sig, method->klass);
7980 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
7982 //printf ("%s\n", mono_method_full_name (method, 1));
7984 /* hack - string constructors returns a value */
7985 if (method->string_ctor)
7986 csig->ret = &mono_defaults.string_class->byval_arg;
7990 MonoClass *handle_stack_mark_class;
7991 MonoClass *error_class;
7992 int thread_info_var = -1, stack_mark_var = -1, error_var = -1;
7993 MonoMethodSignature *call_sig = csig;
7994 gboolean uses_handles = FALSE;
7995 gboolean save_handles_to_locals = FALSE;
7996 IcallHandlesLocal *handles_locals = NULL;
7997 (void) mono_lookup_internal_call_full (method, &uses_handles);
8000 /* If it uses handles and MonoError, it had better check exceptions */
8001 g_assert (!uses_handles || check_exceptions);
8004 MonoMethodSignature *ret;
8006 /* Add a MonoError argument and figure out which args need to be wrapped in handles */
8007 // FIXME: The stuff from mono_metadata_signature_dup_internal_with_padding ()
8008 ret = mono_metadata_signature_alloc (method->klass->image, csig->param_count + 1);
8010 ret->param_count = csig->param_count + 1;
8011 ret->ret = csig->ret;
8013 handles_locals = g_new0 (IcallHandlesLocal, csig->param_count);
8014 for (int i = 0; i < csig->param_count; ++i) {
8015 IcallHandlesWrap w = signature_param_uses_handles (csig, i);
8016 handles_locals [i].wrap = w;
8018 case ICALL_HANDLES_WRAP_OBJ:
8019 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8020 ret->params [i] = mono_class_get_byref_type (mono_class_from_mono_type(csig->params[i]));
8021 if (w == ICALL_HANDLES_WRAP_OBJ_INOUT)
8022 save_handles_to_locals = TRUE;
8024 case ICALL_HANDLES_WRAP_NONE:
8025 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8026 ret->params [i] = csig->params [i];
8029 g_assert_not_reached ();
8032 /* Add MonoError* param */
8033 ret->params [csig->param_count] = &mono_get_intptr_class ()->byval_arg;
8034 ret->pinvoke = csig->pinvoke;
8040 handle_stack_mark_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/HandleStackMark");
8041 error_class = mono_class_load_from_name (mono_get_corlib (), "Mono", "RuntimeStructs/MonoError");
8043 thread_info_var = mono_mb_add_local (mb, &mono_get_intptr_class ()->byval_arg);
8044 stack_mark_var = mono_mb_add_local (mb, &handle_stack_mark_class->byval_arg);
8045 error_var = mono_mb_add_local (mb, &error_class->byval_arg);
8047 if (save_handles_to_locals) {
8048 /* add a local var to hold the handles for each out arg */
8049 for (int i = 0; i < sig->param_count; ++i) {
8050 int j = i + sig->hasthis;
8051 switch (handles_locals[j].wrap) {
8052 case ICALL_HANDLES_WRAP_NONE:
8053 case ICALL_HANDLES_WRAP_OBJ:
8054 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8055 handles_locals [j].handle = -1;
8057 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8058 handles_locals [j].handle = mono_mb_add_local (mb, sig->params [i]);
8061 g_assert_not_reached ();
8071 * Add a null check since public icalls can be called with 'call' which
8072 * does no such check.
8074 mono_mb_emit_byte (mb, CEE_LDARG_0);
8075 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
8076 mono_mb_emit_exception (mb, "NullReferenceException", NULL);
8077 mono_mb_patch_branch (mb, pos);
8081 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8082 mono_mb_emit_ldloc_addr (mb, error_var);
8083 mono_mb_emit_icall (mb, mono_icall_start);
8084 mono_mb_emit_stloc (mb, thread_info_var);
8087 mono_mb_emit_byte (mb, CEE_LDARG_0);
8088 /* TODO support adding wrappers to non-static struct methods */
8089 g_assert (!mono_class_is_valuetype(mono_method_get_class (method)));
8090 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8091 mono_mb_emit_icall (mb, mono_handle_new_full);
8093 for (i = 0; i < sig->param_count; i++) {
8094 /* load each argument. references into the managed heap get wrapped in handles */
8095 int j = i + sig->hasthis;
8096 switch (handles_locals[j].wrap) {
8097 case ICALL_HANDLES_WRAP_NONE:
8098 mono_mb_emit_ldarg (mb, j);
8100 case ICALL_HANDLES_WRAP_OBJ:
8101 /* argI = mono_handle_new_full (argI_raw, FALSE) */
8102 mono_mb_emit_ldarg (mb, j);
8103 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8104 mono_mb_emit_icall (mb, mono_handle_new_full);
8106 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8107 /* handleI = argI = mono_handle_new_full (NULL, FALSE) */
8108 mono_mb_emit_byte (mb, CEE_LDNULL);
8109 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
8110 mono_mb_emit_icall (mb, mono_handle_new_full);
8112 mono_mb_emit_byte (mb, CEE_DUP);
8114 mono_mb_emit_stloc (mb, handles_locals[j].handle);
8116 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8117 /* (void) mono_handle_new_full (argI, TRUE); argI */
8118 mono_mb_emit_ldarg (mb, j);
8119 mono_mb_emit_byte (mb, CEE_DUP);
8120 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
8121 mono_mb_emit_icall (mb, mono_handle_new_full);
8122 mono_mb_emit_byte (mb, CEE_POP);
8124 fprintf (stderr, " Method %s.%s.%s has byref valuetype argument %d\n", method->klass->name_space, method->klass->name, method->name, i);
8128 g_assert_not_reached ();
8131 mono_mb_emit_ldloc_addr (mb, error_var);
8134 mono_mb_emit_byte (mb, CEE_LDARG_0);
8135 for (i = 0; i < sig->param_count; i++)
8136 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8140 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8141 mono_mb_emit_op (mb, CEE_MONO_ICALL_ADDR, &piinfo->method);
8142 mono_mb_emit_calli (mb, call_sig);
8144 g_assert (piinfo->addr);
8145 mono_mb_emit_native_call (mb, call_sig, piinfo->addr);
8149 if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
8150 // if (ret != NULL_HANDLE) {
8151 // ret = MONO_HANDLE_RAW(ret)
8153 mono_mb_emit_byte (mb, CEE_DUP);
8154 int pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
8155 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8156 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8157 mono_mb_patch_branch (mb, pos);
8159 if (save_handles_to_locals) {
8160 for (i = 0; i < sig->param_count; i++) {
8161 int j = i + sig->hasthis;
8162 switch (handles_locals [j].wrap) {
8163 case ICALL_HANDLES_WRAP_NONE:
8164 case ICALL_HANDLES_WRAP_OBJ:
8165 case ICALL_HANDLES_WRAP_VALUETYPE_REF:
8167 case ICALL_HANDLES_WRAP_OBJ_INOUT:
8168 /* *argI_raw = MONO_HANDLE_RAW (handleI) */
8171 mono_mb_emit_ldarg (mb, j);
8173 mono_mb_emit_ldloc (mb, handles_locals [j].handle);
8174 /* MONO_HANDLE_RAW(handleI) */
8175 mono_mb_emit_ldflda (mb, MONO_HANDLE_PAYLOAD_OFFSET (MonoObject));
8176 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8177 /* *argI_raw = MONO_HANDLE_RAW(handleI) */
8178 mono_mb_emit_byte (mb, CEE_STIND_REF);
8181 g_assert_not_reached ();
8185 g_free (handles_locals);
8187 mono_mb_emit_ldloc (mb, thread_info_var);
8188 mono_mb_emit_ldloc_addr (mb, stack_mark_var);
8189 mono_mb_emit_ldloc_addr (mb, error_var);
8190 mono_mb_emit_icall (mb, mono_icall_end);
8193 if (check_exceptions)
8194 emit_thread_interrupt_checkpoint (mb);
8195 mono_mb_emit_byte (mb, CEE_RET);
8197 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8198 info->d.managed_to_native.method = method;
8200 csig = mono_metadata_signature_dup_full (method->klass->image, csig);
8202 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8211 g_assert (piinfo->addr);
8214 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8215 mono_method_get_marshal_info (method, mspecs);
8217 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, aot, check_exceptions, FALSE);
8219 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PINVOKE);
8220 info->d.managed_to_native.method = method;
8222 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
8224 res = mono_mb_create_and_cache_full (cache, method, mb, csig, csig->param_count + 16,
8229 for (i = sig->param_count; i >= 0; i--)
8231 mono_metadata_free_marshal_spec (mspecs [i]);
8235 /* mono_method_print_code (res); */
8241 * mono_marshal_get_native_func_wrapper:
8242 * \param image The image to use for memory allocation and for looking up custom marshallers.
8243 * \param sig The signature of the function
8244 * \param func The native function to wrap
8246 * \returns a wrapper method around native functions, similar to the pinvoke
8250 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8251 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8253 MonoMethodSignature *csig;
8255 SignaturePointerPair key, *new_key;
8256 MonoMethodBuilder *mb;
8265 // Generic types are not safe to place in MonoImage caches.
8266 g_assert (!sig->is_inflated);
8268 cache = get_cache (&image->native_func_wrapper_cache, signature_pointer_pair_hash, signature_pointer_pair_equal);
8269 if ((res = mono_marshal_find_in_cache (cache, &key)))
8272 name = g_strdup_printf ("wrapper_native_%p", func);
8273 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8274 mb->method->save_lmf = 1;
8277 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, FALSE, TRUE, FALSE);
8280 csig = mono_metadata_signature_dup_full (image, sig);
8283 new_key = g_new (SignaturePointerPair,1);
8284 new_key->sig = csig;
8285 new_key->pointer = func;
8287 res = mono_mb_create_and_cache_full (cache, new_key, mb, csig, csig->param_count + 16, NULL, &found);
8293 mono_marshal_set_wrapper_info (res, NULL);
8299 * The wrapper receives the native function as a boxed IntPtr as its 'this' argument. This is easier to support in
8303 mono_marshal_get_native_func_wrapper_aot (MonoClass *klass)
8305 MonoMethodSignature *sig, *csig;
8306 MonoMethodBuilder *mb;
8311 MonoMethodPInvoke mpiinfo;
8312 MonoMethodPInvoke *piinfo = &mpiinfo;
8313 MonoMarshalSpec **mspecs;
8314 MonoMethod *invoke = mono_get_delegate_invoke (klass);
8315 MonoImage *image = invoke->klass->image;
8318 // FIXME: include UnmanagedFunctionPointerAttribute info
8321 * The wrapper is associated with the delegate type, to pick up the marshalling info etc.
8323 cache = get_cache (&mono_method_get_wrapper_cache (invoke)->native_func_wrapper_aot_cache, mono_aligned_addr_hash, NULL);
8325 if ((res = mono_marshal_find_in_cache (cache, invoke)))
8328 memset (&mpiinfo, 0, sizeof (mpiinfo));
8329 parse_unmanaged_function_pointer_attr (klass, &mpiinfo);
8331 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8332 mono_method_get_marshal_info (invoke, mspecs);
8333 /* Freed below so don't alloc from mempool */
8334 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
8337 name = g_strdup_printf ("wrapper_aot_native");
8338 mb = mono_mb_new (invoke->klass, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8339 mb->method->save_lmf = 1;
8342 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, NULL, FALSE, TRUE, TRUE);
8345 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NATIVE_FUNC_AOT);
8346 info->d.managed_to_native.method = invoke;
8348 g_assert (!sig->hasthis);
8349 csig = mono_metadata_signature_dup_add_this (image, sig, mono_defaults.object_class);
8351 res = mono_mb_create_and_cache_full (cache, invoke,
8352 mb, csig, csig->param_count + 16,
8356 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8358 mono_metadata_free_marshal_spec (mspecs [i]);
8366 * mono_marshal_emit_managed_wrapper:
8368 * Emit the body of a native-to-managed wrapper. INVOKE_SIG is the signature of
8369 * the delegate which wraps the managed method to be called. For closed delegates,
8370 * it could have fewer parameters than the method it wraps.
8371 * THIS_LOC is the memory location where the target of the delegate is stored.
8374 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, uint32_t target_handle)
8377 MonoMethodSignature *sig, *csig;
8383 /* we first do all conversions */
8384 for (i = 0; i < sig->param_count; i ++) {
8385 MonoType *t = sig->params [i];
8388 case MONO_TYPE_OBJECT:
8389 case MONO_TYPE_CLASS:
8390 case MONO_TYPE_VALUETYPE:
8391 case MONO_TYPE_ARRAY:
8392 case MONO_TYPE_SZARRAY:
8393 case MONO_TYPE_STRING:
8394 case MONO_TYPE_BOOLEAN:
8395 emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8399 if (!sig->ret->byref) {
8400 switch (sig->ret->type) {
8401 case MONO_TYPE_STRING:
8402 csig->ret = &mono_defaults.int_class->byval_arg;
8409 MonoMethodSignature *sig, *csig;
8410 MonoExceptionClause *clauses, *clause_finally, *clause_catch;
8411 int i, *tmp_locals, ex_local, e_local, attach_cookie_local, attach_dummy_local;
8412 int leave_try_pos, leave_catch_pos, ex_m1_pos;
8413 gboolean closed = FALSE;
8418 /* allocate local 0 (pointer) src_ptr */
8419 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8420 /* allocate local 1 (pointer) dst_ptr */
8421 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8422 /* allocate local 2 (boolean) delete_old */
8423 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8425 if (!sig->hasthis && sig->param_count != invoke_sig->param_count) {
8426 /* Closed delegate */
8427 g_assert (sig->param_count == invoke_sig->param_count + 1);
8429 /* Use a new signature without the first argument */
8430 sig = mono_metadata_signature_dup (sig);
8431 memmove (&sig->params [0], &sig->params [1], (sig->param_count - 1) * sizeof (MonoType*));
8432 sig->param_count --;
8435 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8436 /* allocate local 3 to store the return value */
8437 mono_mb_add_local (mb, sig->ret);
8440 if (MONO_TYPE_ISSTRUCT (sig->ret))
8441 m->vtaddr_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8443 ex_local = mono_mb_add_local (mb, &mono_defaults.uint32_class->byval_arg);
8444 e_local = mono_mb_add_local (mb, &mono_defaults.exception_class->byval_arg);
8446 attach_cookie_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8447 attach_dummy_local = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8452 * // does (STARTING|RUNNING|BLOCKING) -> RUNNING + set/switch domain
8453 * mono_threads_attach_coop ();
8457 * ret = method (...);
8458 * } catch (Exception e) {
8459 * ex = mono_gchandle_new (e, false);
8461 * // does RUNNING -> (RUNNING|BLOCKING) + unset/switch domain
8462 * mono_threads_detach_coop ();
8465 * mono_marshal_ftnptr_eh_callback (ex);
8471 clauses = g_new0 (MonoExceptionClause, 2);
8473 clause_catch = &clauses [0];
8474 clause_catch->flags = MONO_EXCEPTION_CLAUSE_NONE;
8475 clause_catch->data.catch_class = mono_defaults.exception_class;
8477 clause_finally = &clauses [1];
8478 clause_finally->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
8480 mono_mb_emit_icon (mb, 0);
8481 mono_mb_emit_stloc (mb, 2);
8483 mono_mb_emit_icon (mb, -1);
8484 mono_mb_emit_byte (mb, CEE_CONV_U4);
8485 mono_mb_emit_stloc (mb, ex_local);
8488 clause_catch->try_offset = clause_finally->try_offset = mono_mb_get_label (mb);
8490 if (!mono_threads_is_coop_enabled ()) {
8491 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8492 mono_mb_emit_byte (mb, CEE_MONO_JIT_ATTACH);
8494 /* mono_threads_attach_coop (); */
8495 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8496 mono_mb_emit_byte (mb, CEE_MONO_LDDOMAIN);
8497 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8498 mono_mb_emit_icall (mb, mono_threads_attach_coop);
8499 mono_mb_emit_stloc (mb, attach_cookie_local);
8502 /* <interrupt check> */
8503 emit_thread_interrupt_checkpoint (mb);
8505 /* we first do all conversions */
8506 tmp_locals = (int *)alloca (sizeof (int) * sig->param_count);
8507 for (i = 0; i < sig->param_count; i ++) {
8508 MonoType *t = sig->params [i];
8511 case MONO_TYPE_OBJECT:
8512 case MONO_TYPE_CLASS:
8513 case MONO_TYPE_VALUETYPE:
8514 case MONO_TYPE_ARRAY:
8515 case MONO_TYPE_SZARRAY:
8516 case MONO_TYPE_STRING:
8517 case MONO_TYPE_BOOLEAN:
8518 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8528 if (target_handle) {
8529 mono_mb_emit_icon (mb, (gint32)target_handle);
8530 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8533 g_assert_not_reached ();
8535 } else if (closed) {
8536 mono_mb_emit_icon (mb, (gint32)target_handle);
8537 mono_mb_emit_icall (mb, mono_gchandle_get_target);
8540 for (i = 0; i < sig->param_count; i++) {
8541 MonoType *t = sig->params [i];
8543 if (tmp_locals [i]) {
8545 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8547 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8550 mono_mb_emit_ldarg (mb, i);
8553 /* ret = method (...) */
8554 mono_mb_emit_managed_call (mb, method, NULL);
8556 if (MONO_TYPE_ISSTRUCT (sig->ret)) {
8557 MonoClass *klass = mono_class_from_mono_type (sig->ret);
8558 mono_class_init (klass);
8559 if (!(mono_class_is_explicit_layout (klass) || klass->blittable)) {
8560 /* This is used by emit_marshal_vtype (), but it needs to go right before the call */
8561 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8562 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
8563 mono_mb_emit_stloc (mb, m->vtaddr_var);
8567 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8568 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8569 } else if (!sig->ret->byref) {
8570 switch (sig->ret->type) {
8571 case MONO_TYPE_VOID:
8573 case MONO_TYPE_BOOLEAN:
8576 case MONO_TYPE_CHAR:
8588 case MONO_TYPE_OBJECT:
8589 mono_mb_emit_stloc (mb, 3);
8591 case MONO_TYPE_STRING:
8592 csig->ret = &mono_defaults.int_class->byval_arg;
8593 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8595 case MONO_TYPE_VALUETYPE:
8596 case MONO_TYPE_CLASS:
8597 case MONO_TYPE_SZARRAY:
8598 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8601 g_warning ("return type 0x%02x unknown", sig->ret->type);
8602 g_assert_not_reached ();
8605 mono_mb_emit_stloc (mb, 3);
8608 /* Convert byref arguments back */
8609 for (i = 0; i < sig->param_count; i ++) {
8610 MonoType *t = sig->params [i];
8611 MonoMarshalSpec *spec = mspecs [i + 1];
8613 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8614 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8616 else if (t->byref) {
8618 case MONO_TYPE_CLASS:
8619 case MONO_TYPE_VALUETYPE:
8620 case MONO_TYPE_OBJECT:
8621 case MONO_TYPE_STRING:
8622 case MONO_TYPE_BOOLEAN:
8623 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8629 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8630 /* The [Out] information is encoded in the delegate signature */
8632 case MONO_TYPE_SZARRAY:
8633 case MONO_TYPE_CLASS:
8634 case MONO_TYPE_VALUETYPE:
8635 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8638 g_assert_not_reached ();
8643 leave_try_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8647 /* catch (Exception e) { */
8648 clause_catch->try_len = mono_mb_get_label (mb) - clause_catch->try_offset;
8649 clause_catch->handler_offset = mono_mb_get_label (mb);
8651 mono_mb_emit_stloc (mb, e_local);
8653 /* ex = mono_gchandle_new (e, false); */
8654 mono_mb_emit_ldloc (mb, e_local);
8655 mono_mb_emit_icon (mb, 0);
8656 mono_mb_emit_icall (mb, mono_gchandle_new);
8657 mono_mb_emit_stloc (mb, ex_local);
8659 leave_catch_pos = mono_mb_emit_branch (mb, CEE_LEAVE);
8662 clause_catch->handler_len = mono_mb_get_pos (mb) - clause_catch->handler_offset;
8665 clause_finally->try_len = mono_mb_get_label (mb) - clause_finally->try_offset;
8666 clause_finally->handler_offset = mono_mb_get_label (mb);
8668 if (!mono_threads_is_coop_enabled ()) {
8669 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8670 mono_mb_emit_byte (mb, CEE_MONO_JIT_DETACH);
8672 /* mono_threads_detach_coop (); */
8673 mono_mb_emit_ldloc (mb, attach_cookie_local);
8674 mono_mb_emit_ldloc_addr (mb, attach_dummy_local);
8675 mono_mb_emit_icall (mb, mono_threads_detach_coop);
8679 mono_mb_emit_ldloc (mb, ex_local);
8680 mono_mb_emit_icon (mb, -1);
8681 mono_mb_emit_byte (mb, CEE_CONV_U4);
8682 ex_m1_pos = mono_mb_emit_branch (mb, CEE_BEQ);
8684 /* mono_marshal_ftnptr_eh_callback (ex) */
8685 mono_mb_emit_ldloc (mb, ex_local);
8686 mono_mb_emit_icall (mb, mono_marshal_ftnptr_eh_callback);
8689 mono_mb_patch_branch (mb, ex_m1_pos);
8691 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
8693 /* } [endfinally] */
8694 clause_finally->handler_len = mono_mb_get_pos (mb) - clause_finally->handler_offset;
8696 mono_mb_patch_branch (mb, leave_try_pos);
8697 mono_mb_patch_branch (mb, leave_catch_pos);
8700 if (m->retobj_var) {
8701 mono_mb_emit_ldloc (mb, m->retobj_var);
8702 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8703 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8706 if (!MONO_TYPE_IS_VOID(sig->ret))
8707 mono_mb_emit_ldloc (mb, 3);
8708 mono_mb_emit_byte (mb, CEE_RET);
8711 mono_mb_set_clauses (mb, 2, clauses);
8719 mono_marshal_set_callconv_from_modopt (MonoMethod *method, MonoMethodSignature *csig)
8721 MonoMethodSignature *sig;
8726 * Under windows, delegates passed to native code must use the STDCALL
8727 * calling convention.
8729 csig->call_convention = MONO_CALL_STDCALL;
8732 sig = mono_method_signature (method);
8734 /* Change default calling convention if needed */
8735 /* Why is this a modopt ? */
8736 if (sig->ret && sig->ret->num_mods) {
8737 for (i = 0; i < sig->ret->num_mods; ++i) {
8739 MonoClass *cmod_class = mono_class_get_checked (method->klass->image, sig->ret->modifiers [i].token, &error);
8740 g_assert (mono_error_ok (&error));
8741 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8742 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8743 csig->call_convention = MONO_CALL_C;
8744 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8745 csig->call_convention = MONO_CALL_STDCALL;
8746 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8747 csig->call_convention = MONO_CALL_FASTCALL;
8748 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8749 csig->call_convention = MONO_CALL_THISCALL;
8756 * mono_marshal_get_managed_wrapper:
8757 * Generates IL code to call managed methods from unmanaged code
8758 * If \p target_handle is \c 0, the wrapper info will be a \c WrapperInfo structure.
8761 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, uint32_t target_handle, MonoError *error)
8763 MonoMethodSignature *sig, *csig, *invoke_sig;
8764 MonoMethodBuilder *mb;
8765 MonoMethod *res, *invoke;
8766 MonoMarshalSpec **mspecs;
8767 MonoMethodPInvoke piinfo;
8770 EmitMarshalContext m;
8772 g_assert (method != NULL);
8775 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) {
8776 mono_error_set_invalid_program (error, "Failed because method (%s) marked PInvokeCallback (managed method) and extern (unmanaged) simultaneously.", mono_method_full_name (method, TRUE));
8781 * FIXME: Should cache the method+delegate type pair, since the same method
8782 * could be called with different delegates, thus different marshalling
8785 cache = get_cache (&mono_method_get_wrapper_cache (method)->managed_wrapper_cache, mono_aligned_addr_hash, NULL);
8787 if (!target_handle && (res = mono_marshal_find_in_cache (cache, method)))
8790 invoke = mono_get_delegate_invoke (delegate_klass);
8791 invoke_sig = mono_method_signature (invoke);
8793 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8794 mono_method_get_marshal_info (invoke, mspecs);
8796 sig = mono_method_signature (method);
8798 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8800 /*the target gchandle must be the first entry after size and the wrapper itself.*/
8801 mono_mb_add_data (mb, GUINT_TO_POINTER (target_handle));
8803 /* we copy the signature, so that we can modify it */
8805 /* Need to free this later */
8806 csig = mono_metadata_signature_dup (invoke_sig);
8808 csig = mono_metadata_signature_dup_full (method->klass->image, invoke_sig);
8812 memset (&m, 0, sizeof (m));
8818 m.image = method->klass->image;
8820 mono_marshal_set_callconv_from_modopt (invoke, csig);
8822 /* The attribute is only available in Net 2.0 */
8823 if (mono_class_try_get_unmanaged_function_pointer_attribute_class ()) {
8824 MonoCustomAttrInfo *cinfo;
8825 MonoCustomAttrEntry *attr;
8828 * The pinvoke attributes are stored in a real custom attribute. Obtain the
8829 * contents of the attribute without constructing it, as that might not be
8830 * possible when running in cross-compiling mode.
8832 cinfo = mono_custom_attrs_from_class_checked (delegate_klass, error);
8833 mono_error_assert_ok (error);
8836 for (i = 0; i < cinfo->num_attrs; ++i) {
8837 MonoClass *ctor_class = cinfo->attrs [i].ctor->klass;
8838 if (mono_class_has_parent (ctor_class, mono_class_try_get_unmanaged_function_pointer_attribute_class ())) {
8839 attr = &cinfo->attrs [i];
8845 MonoArray *typed_args, *named_args;
8846 CattrNamedArg *arginfo;
8850 MonoBoolean set_last_error = 0;
8853 mono_reflection_create_custom_attr_data_args (mono_defaults.corlib, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8854 g_assert (mono_error_ok (&error));
8855 g_assert (mono_array_length (typed_args) == 1);
8858 o = mono_array_get (typed_args, MonoObject*, 0);
8859 call_conv = *(gint32*)mono_object_unbox (o);
8862 for (i = 0; i < mono_array_length (named_args); ++i) {
8863 CattrNamedArg *narg = &arginfo [i];
8865 o = mono_array_get (named_args, MonoObject*, i);
8867 g_assert (narg->field);
8868 if (!strcmp (narg->field->name, "CharSet")) {
8869 charset = *(gint32*)mono_object_unbox (o);
8870 } else if (!strcmp (narg->field->name, "SetLastError")) {
8871 set_last_error = *(MonoBoolean*)mono_object_unbox (o);
8872 } else if (!strcmp (narg->field->name, "BestFitMapping")) {
8873 // best_fit_mapping = *(MonoBoolean*)mono_object_unbox (o);
8874 } else if (!strcmp (narg->field->name, "ThrowOnUnmappableChar")) {
8875 // throw_on_unmappable = *(MonoBoolean*)mono_object_unbox (o);
8877 g_assert_not_reached ();
8883 memset (&piinfo, 0, sizeof (piinfo));
8885 piinfo.piflags = (call_conv << 8) | (charset ? (charset - 1) * 2 : 1) | set_last_error;
8887 csig->call_convention = call_conv - 1;
8890 if (cinfo && !cinfo->cached)
8891 mono_custom_attrs_free (cinfo);
8894 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, target_handle);
8896 if (!target_handle) {
8899 // FIXME: Associate it with the method+delegate_klass pair
8900 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
8901 info->d.native_to_managed.method = method;
8902 info->d.native_to_managed.klass = delegate_klass;
8904 res = mono_mb_create_and_cache_full (cache, method,
8905 mb, csig, sig->param_count + 16,
8911 res = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8915 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8917 mono_metadata_free_marshal_spec (mspecs [i]);
8920 /* mono_method_print_code (res); */
8926 mono_marshal_get_vtfixup_ftnptr (MonoImage *image, guint32 token, guint16 type)
8930 MonoMethodSignature *sig;
8931 MonoMethodBuilder *mb;
8936 method = mono_get_method_checked (image, token, NULL, NULL, &error);
8938 g_error ("Could not load vtfixup token 0x%x due to %s", token, mono_error_get_message (&error));
8941 if (type & (VTFIXUP_TYPE_FROM_UNMANAGED | VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN)) {
8942 MonoMethodSignature *csig;
8943 MonoMarshalSpec **mspecs;
8944 EmitMarshalContext m;
8946 sig = mono_method_signature (method);
8947 g_assert (!sig->hasthis);
8949 mspecs = g_new0 (MonoMarshalSpec*, sig->param_count + 1);
8950 mono_method_get_marshal_info (method, mspecs);
8952 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8953 csig = mono_metadata_signature_dup_full (image, sig);
8957 memset (&m, 0, sizeof (m));
8965 mono_marshal_set_callconv_from_modopt (method, csig);
8967 /* FIXME: Implement VTFIXUP_TYPE_FROM_UNMANAGED_RETAIN_APPDOMAIN. */
8969 mono_marshal_emit_managed_wrapper (mb, sig, mspecs, &m, method, 0);
8974 method = mono_mb_create (mb, csig, sig->param_count + 16, NULL);
8977 for (i = sig->param_count; i >= 0; i--)
8979 mono_metadata_free_marshal_spec (mspecs [i]);
8982 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
8983 mono_error_assert_ok (&error);
8984 return compiled_ptr;
8987 sig = mono_method_signature (method);
8988 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8990 param_count = sig->param_count + sig->hasthis;
8992 for (i = 0; i < param_count; i++)
8993 mono_mb_emit_ldarg (mb, i);
8995 if (type & VTFIXUP_TYPE_CALL_MOST_DERIVED)
8996 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
8998 mono_mb_emit_op (mb, CEE_CALL, method);
8999 mono_mb_emit_byte (mb, CEE_RET);
9004 method = mono_mb_create (mb, sig, param_count, NULL);
9007 gpointer compiled_ptr = mono_compile_method_checked (method, &error);
9008 mono_error_assert_ok (&error);
9009 return compiled_ptr;
9015 * The code directly following this is the cache hit, value positive branch
9017 * This function takes a new method builder with 0 locals and adds two locals
9018 * to create multiple out-branches and the fall through state of having the object
9019 * on the stack after a cache miss
9022 generate_check_cache (int obj_arg_position, int class_arg_position, int cache_arg_position, // In-parameters
9023 int *null_obj, int *cache_hit_neg, int *cache_hit_pos, // Out-parameters
9024 MonoMethodBuilder *mb)
9028 /* allocate local 0 (pointer) obj_vtable */
9029 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9030 /* allocate local 1 (pointer) cached_vtable */
9031 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9034 mono_mb_emit_ldarg (mb, obj_arg_position);
9035 *null_obj = mono_mb_emit_branch (mb, CEE_BRFALSE);
9037 /*obj_vtable = obj->vtable;*/
9038 mono_mb_emit_ldarg (mb, obj_arg_position);
9039 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9040 mono_mb_emit_byte (mb, CEE_LDIND_I);
9041 mono_mb_emit_stloc (mb, 0);
9043 /* cached_vtable = *cache*/
9044 mono_mb_emit_ldarg (mb, cache_arg_position);
9045 mono_mb_emit_byte (mb, CEE_LDIND_I);
9046 mono_mb_emit_stloc (mb, 1);
9048 mono_mb_emit_ldloc (mb, 1);
9049 mono_mb_emit_byte (mb, CEE_LDC_I4);
9050 mono_mb_emit_i4 (mb, ~0x1);
9051 mono_mb_emit_byte (mb, CEE_CONV_I);
9052 mono_mb_emit_byte (mb, CEE_AND);
9053 mono_mb_emit_ldloc (mb, 0);
9054 /*if ((cached_vtable & ~0x1)== obj_vtable)*/
9055 cache_miss_pos = mono_mb_emit_branch (mb, CEE_BNE_UN);
9057 /*return (cached_vtable & 0x1) ? NULL : obj;*/
9058 mono_mb_emit_ldloc (mb, 1);
9059 mono_mb_emit_byte(mb, CEE_LDC_I4_1);
9060 mono_mb_emit_byte (mb, CEE_CONV_U);
9061 mono_mb_emit_byte (mb, CEE_AND);
9062 *cache_hit_neg = mono_mb_emit_branch (mb, CEE_BRTRUE);
9063 *cache_hit_pos = mono_mb_emit_branch (mb, CEE_BR);
9066 mono_mb_patch_branch (mb, cache_miss_pos);
9069 mono_mb_emit_ldarg (mb, obj_arg_position);
9070 mono_mb_emit_ldarg (mb, class_arg_position);
9071 mono_mb_emit_ldarg (mb, cache_arg_position);
9072 mono_mb_emit_icall (mb, mono_marshal_isinst_with_cache);
9075 #endif /* DISABLE_JIT */
9078 * mono_marshal_get_castclass_with_cache:
9079 * This does the equivalent of \c mono_object_castclass_with_cache.
9082 mono_marshal_get_castclass_with_cache (void)
9084 static MonoMethod *cached;
9086 MonoMethodBuilder *mb;
9087 MonoMethodSignature *sig;
9088 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos, invalid_cast_pos;
9091 const int obj_arg_position = 0;
9092 const int class_arg_position = 1;
9093 const int cache_arg_position = 2;
9098 mb = mono_mb_new (mono_defaults.object_class, "__castclass_with_cache", MONO_WRAPPER_CASTCLASS);
9099 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9100 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9101 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9102 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9103 sig->ret = &mono_defaults.object_class->byval_arg;
9107 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9108 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9109 invalid_cast_pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
9112 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9113 mono_mb_emit_ldarg (mb, obj_arg_position);
9114 mono_mb_emit_byte (mb, CEE_RET);
9117 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9118 mono_mb_patch_branch (mb, invalid_cast_pos);
9119 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
9122 mono_mb_patch_branch (mb, return_null_pos);
9123 mono_mb_emit_byte (mb, CEE_LDNULL);
9124 mono_mb_emit_byte (mb, CEE_RET);
9125 #endif /* DISABLE_JIT */
9127 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_CASTCLASS_WITH_CACHE);
9128 res = mono_mb_create (mb, sig, 8, info);
9131 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9132 mono_free_method (res);
9133 mono_metadata_free_method_signature (sig);
9140 /* this is an icall */
9142 mono_marshal_isinst_with_cache (MonoObject *obj, MonoClass *klass, uintptr_t *cache)
9145 MonoObject *isinst = mono_object_isinst_checked (obj, klass, &error);
9146 if (mono_error_set_pending_exception (&error))
9149 if (mono_object_is_transparent_proxy (obj))
9152 uintptr_t cache_update = (uintptr_t)obj->vtable;
9154 cache_update = cache_update | 0x1;
9156 *cache = cache_update;
9162 * mono_marshal_get_isinst_with_cache:
9163 * This does the equivalent of \c mono_marshal_isinst_with_cache.
9166 mono_marshal_get_isinst_with_cache (void)
9168 static MonoMethod *cached;
9170 MonoMethodBuilder *mb;
9171 MonoMethodSignature *sig;
9172 int return_null_pos, positive_cache_hit_pos, negative_cache_hit_pos;
9175 const int obj_arg_position = 0;
9176 const int class_arg_position = 1;
9177 const int cache_arg_position = 2;
9182 mb = mono_mb_new (mono_defaults.object_class, "__isinst_with_cache", MONO_WRAPPER_CASTCLASS);
9183 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9185 sig->params [obj_arg_position] = &mono_defaults.object_class->byval_arg;
9187 sig->params [class_arg_position] = &mono_defaults.int_class->byval_arg;
9189 sig->params [cache_arg_position] = &mono_defaults.int_class->byval_arg;
9190 sig->ret = &mono_defaults.object_class->byval_arg;
9194 generate_check_cache (obj_arg_position, class_arg_position, cache_arg_position,
9195 &return_null_pos, &negative_cache_hit_pos, &positive_cache_hit_pos, mb);
9196 // Return the object gotten via the slow path.
9197 mono_mb_emit_byte (mb, CEE_RET);
9200 mono_mb_patch_branch (mb, negative_cache_hit_pos);
9201 mono_mb_patch_branch (mb, return_null_pos);
9202 mono_mb_emit_byte (mb, CEE_LDNULL);
9203 mono_mb_emit_byte (mb, CEE_RET);
9206 mono_mb_patch_branch (mb, positive_cache_hit_pos);
9207 mono_mb_emit_ldarg (mb, obj_arg_position);
9208 mono_mb_emit_byte (mb, CEE_RET);
9211 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ISINST_WITH_CACHE);
9212 res = mono_mb_create (mb, sig, 8, info);
9215 if (InterlockedCompareExchangePointer ((volatile gpointer *)&cached, res, NULL)) {
9216 mono_free_method (res);
9217 mono_metadata_free_method_signature (sig);
9225 * mono_marshal_get_struct_to_ptr:
9226 * \param klass \c MonoClass
9228 * Generates IL code for <code>StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)</code>
9231 mono_marshal_get_struct_to_ptr (MonoClass *klass)
9233 MonoMethodBuilder *mb;
9234 static MonoMethod *stoptr = NULL;
9238 g_assert (klass != NULL);
9240 mono_marshal_load_type_info (klass);
9242 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9243 if (marshal_info->str_to_ptr)
9244 return marshal_info->str_to_ptr;
9247 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9250 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9253 if (klass->blittable) {
9254 mono_mb_emit_byte (mb, CEE_LDARG_1);
9255 mono_mb_emit_byte (mb, CEE_LDARG_0);
9256 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9257 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9258 mono_mb_emit_byte (mb, CEE_PREFIX1);
9259 mono_mb_emit_byte (mb, CEE_CPBLK);
9262 /* allocate local 0 (pointer) src_ptr */
9263 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9264 /* allocate local 1 (pointer) dst_ptr */
9265 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9266 /* allocate local 2 (boolean) delete_old */
9267 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9268 mono_mb_emit_byte (mb, CEE_LDARG_2);
9269 mono_mb_emit_stloc (mb, 2);
9271 /* initialize src_ptr to point to the start of object data */
9272 mono_mb_emit_byte (mb, CEE_LDARG_0);
9273 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9274 mono_mb_emit_stloc (mb, 0);
9276 /* initialize dst_ptr */
9277 mono_mb_emit_byte (mb, CEE_LDARG_1);
9278 mono_mb_emit_stloc (mb, 1);
9280 emit_struct_conv (mb, klass, FALSE);
9283 mono_mb_emit_byte (mb, CEE_RET);
9285 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_STRUCTURE_TO_PTR);
9286 res = mono_mb_create (mb, mono_signature_no_pinvoke (stoptr), 0, info);
9289 mono_marshal_lock ();
9290 if (!marshal_info->str_to_ptr)
9291 marshal_info->str_to_ptr = res;
9293 res = marshal_info->str_to_ptr;
9294 mono_marshal_unlock ();
9299 * mono_marshal_get_ptr_to_struct:
9300 * \param klass \c MonoClass
9301 * Generates IL code for <code>PtrToStructure (IntPtr src, object structure)</code>
9304 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9306 MonoMethodBuilder *mb;
9307 static MonoMethodSignature *ptostr = NULL;
9311 g_assert (klass != NULL);
9313 mono_marshal_load_type_info (klass);
9315 MonoMarshalType *marshal_info = mono_class_get_marshal_info (klass);
9316 if (marshal_info->ptr_to_str)
9317 return marshal_info->ptr_to_str;
9320 MonoMethodSignature *sig;
9322 /* Create the signature corresponding to
9323 static void PtrToStructure (IntPtr ptr, object structure);
9324 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9325 sig = mono_create_icall_signature ("void ptr object");
9326 sig = mono_metadata_signature_dup_full (mono_defaults.corlib, sig);
9328 mono_memory_barrier ();
9332 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9335 if (klass->blittable) {
9336 mono_mb_emit_byte (mb, CEE_LDARG_1);
9337 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9338 mono_mb_emit_byte (mb, CEE_LDARG_0);
9339 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9340 mono_mb_emit_byte (mb, CEE_PREFIX1);
9341 mono_mb_emit_byte (mb, CEE_CPBLK);
9344 /* allocate local 0 (pointer) src_ptr */
9345 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9346 /* allocate local 1 (pointer) dst_ptr */
9347 mono_mb_add_local (mb, &klass->this_arg);
9349 /* initialize src_ptr to point to the start of object data */
9350 mono_mb_emit_byte (mb, CEE_LDARG_0);
9351 mono_mb_emit_stloc (mb, 0);
9353 /* initialize dst_ptr */
9354 mono_mb_emit_byte (mb, CEE_LDARG_1);
9355 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9356 mono_mb_emit_stloc (mb, 1);
9358 emit_struct_conv (mb, klass, TRUE);
9361 mono_mb_emit_byte (mb, CEE_RET);
9363 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_PTR_TO_STRUCTURE);
9364 res = mono_mb_create (mb, ptostr, 0, info);
9367 mono_marshal_lock ();
9368 if (!marshal_info->ptr_to_str)
9369 marshal_info->ptr_to_str = res;
9371 res = marshal_info->ptr_to_str;
9372 mono_marshal_unlock ();
9377 * Return a dummy wrapper for METHOD which is called by synchronized wrappers.
9378 * This is used to avoid infinite recursion since it is hard to determine where to
9379 * replace a method with its synchronized wrapper, and where not.
9380 * The runtime should execute METHOD instead of the wrapper.
9383 mono_marshal_get_synchronized_inner_wrapper (MonoMethod *method)
9385 MonoMethodBuilder *mb;
9387 MonoMethodSignature *sig;
9389 MonoGenericContext *ctx = NULL;
9390 MonoGenericContainer *container = NULL;
9392 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9393 ctx = &((MonoMethodInflated*)method)->context;
9394 method = ((MonoMethodInflated*)method)->declaring;
9395 container = mono_method_get_generic_container (method);
9397 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9398 g_assert (container);
9401 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
9403 mono_mb_emit_exception_full (mb, "System", "ExecutionEngineException", "Shouldn't be called.");
9404 mono_mb_emit_byte (mb, CEE_RET);
9406 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9408 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_SYNCHRONIZED_INNER);
9409 info->d.synchronized_inner.method = method;
9410 res = mono_mb_create (mb, sig, 0, info);
9414 res = mono_class_inflate_generic_method_checked (res, ctx, &error);
9415 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9421 * mono_marshal_get_synchronized_wrapper:
9422 * Generates IL code for the synchronized wrapper: the generated method
9423 * calls \p method while locking \c this or the parent type.
9426 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9428 static MonoMethod *enter_method, *exit_method, *gettypefromhandle_method;
9429 MonoMethodSignature *sig;
9430 MonoExceptionClause *clause;
9431 MonoMethodBuilder *mb;
9435 int i, pos, pos2, this_local, taken_local, ret_local = 0;
9436 MonoGenericContext *ctx = NULL;
9437 MonoMethod *orig_method = NULL;
9438 MonoGenericContainer *container = NULL;
9442 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9445 /* FIXME: Support generic methods too */
9446 if (method->is_inflated && !mono_method_get_context (method)->method_inst) {
9447 orig_method = method;
9448 ctx = &((MonoMethodInflated*)method)->context;
9449 method = ((MonoMethodInflated*)method)->declaring;
9450 container = mono_method_get_generic_container (method);
9452 container = mono_class_try_get_generic_container (method->klass); //FIXME is this a case of a try?
9453 g_assert (container);
9460 cache = get_cache (&((MonoMethodInflated*)orig_method)->owner->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9461 res = check_generic_wrapper_cache (cache, orig_method, orig_method, method);
9465 cache = get_cache (&method->klass->image->wrapper_caches.synchronized_cache, mono_aligned_addr_hash, NULL);
9466 if ((res = mono_marshal_find_in_cache (cache, method)))
9470 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
9473 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9475 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9476 info->d.synchronized.method = method;
9479 mb->skip_visibility = 1;
9481 if (!MONO_TYPE_IS_VOID (sig->ret))
9482 ret_local = mono_mb_add_local (mb, sig->ret);
9485 if (method->klass->valuetype && !(method->flags & MONO_METHOD_ATTR_STATIC)) {
9486 /* FIXME Is this really the best way to signal an error here? Isn't this called much later after class setup? -AK */
9487 mono_class_set_type_load_failure (method->klass, "");
9489 /* This will throw the type load exception when the wrapper is compiled */
9490 mono_mb_emit_byte (mb, CEE_LDNULL);
9491 mono_mb_emit_op (mb, CEE_ISINST, method->klass);
9492 mono_mb_emit_byte (mb, CEE_POP);
9494 if (!MONO_TYPE_IS_VOID (sig->ret))
9495 mono_mb_emit_ldloc (mb, ret_local);
9496 mono_mb_emit_byte (mb, CEE_RET);
9499 res = mono_mb_create_and_cache_full (cache, method,
9500 mb, sig, sig->param_count + 16, info, NULL);
9508 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9509 taken_local = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9511 clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
9512 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9515 mono_marshal_lock ();
9517 if (!enter_method) {
9518 MonoMethodDesc *desc;
9520 desc = mono_method_desc_new ("Monitor:Enter(object,bool&)", FALSE);
9521 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9522 g_assert (enter_method);
9523 mono_method_desc_free (desc);
9525 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9526 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9527 g_assert (exit_method);
9528 mono_method_desc_free (desc);
9530 desc = mono_method_desc_new ("Type:GetTypeFromHandle", FALSE);
9531 gettypefromhandle_method = mono_method_desc_search_in_class (desc, mono_defaults.systemtype_class);
9532 g_assert (gettypefromhandle_method);
9533 mono_method_desc_free (desc);
9536 mono_marshal_unlock ();
9539 /* Push this or the type object */
9540 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9541 /* We have special handling for this in the JIT */
9542 int index = mono_mb_add_data (mb, method->klass);
9543 mono_mb_add_data (mb, mono_defaults.typehandle_class);
9544 mono_mb_emit_byte (mb, CEE_LDTOKEN);
9545 mono_mb_emit_i4 (mb, index);
9547 mono_mb_emit_managed_call (mb, gettypefromhandle_method, NULL);
9550 mono_mb_emit_ldarg (mb, 0);
9551 mono_mb_emit_stloc (mb, this_local);
9553 /* Call Monitor::Enter() */
9554 mono_mb_emit_ldloc (mb, this_local);
9555 mono_mb_emit_ldloc_addr (mb, taken_local);
9556 mono_mb_emit_managed_call (mb, enter_method, NULL);
9558 clause->try_offset = mono_mb_get_label (mb);
9560 /* Call the method */
9562 mono_mb_emit_ldarg (mb, 0);
9563 for (i = 0; i < sig->param_count; i++)
9564 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9568 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
9569 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9571 mono_mb_emit_managed_call (mb, method, NULL);
9574 if (!MONO_TYPE_IS_VOID (sig->ret))
9575 mono_mb_emit_stloc (mb, ret_local);
9577 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9579 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9580 clause->handler_offset = mono_mb_get_label (mb);
9582 /* Call Monitor::Exit() if needed */
9583 mono_mb_emit_ldloc (mb, taken_local);
9584 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9585 mono_mb_emit_ldloc (mb, this_local);
9586 mono_mb_emit_managed_call (mb, exit_method, NULL);
9587 mono_mb_patch_branch (mb, pos2);
9588 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9590 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9592 mono_mb_patch_branch (mb, pos);
9593 if (!MONO_TYPE_IS_VOID (sig->ret))
9594 mono_mb_emit_ldloc (mb, ret_local);
9595 mono_mb_emit_byte (mb, CEE_RET);
9597 mono_mb_set_clauses (mb, 1, clause);
9602 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
9603 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
9605 res = mono_mb_create_and_cache_full (cache, method,
9606 mb, sig, sig->param_count + 16, info, NULL);
9615 * mono_marshal_get_unbox_wrapper:
9616 * The returned method calls \p method unboxing the \c this argument.
9619 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9621 MonoMethodSignature *sig = mono_method_signature (method);
9623 MonoMethodBuilder *mb;
9628 cache = get_cache (&mono_method_get_wrapper_cache (method)->unbox_wrapper_cache, mono_aligned_addr_hash, NULL);
9630 if ((res = mono_marshal_find_in_cache (cache, method)))
9633 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9635 g_assert (sig->hasthis);
9638 mono_mb_emit_ldarg (mb, 0);
9639 mono_mb_emit_icon (mb, sizeof (MonoObject));
9640 mono_mb_emit_byte (mb, CEE_ADD);
9641 for (i = 0; i < sig->param_count; ++i)
9642 mono_mb_emit_ldarg (mb, i + 1);
9643 mono_mb_emit_managed_call (mb, method, NULL);
9644 mono_mb_emit_byte (mb, CEE_RET);
9647 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
9648 info->d.unbox.method = method;
9650 res = mono_mb_create_and_cache_full (cache, method,
9651 mb, sig, sig->param_count + 16, info, NULL);
9654 /* mono_method_print_code (res); */
9660 STELEMREF_OBJECT, /*no check at all*/
9661 STELEMREF_SEALED_CLASS, /*check vtable->klass->element_type */
9662 STELEMREF_CLASS, /*only the klass->parents check*/
9663 STELEMREF_INTERFACE, /*interfaces without variant generic arguments. */
9664 STELEMREF_COMPLEX, /*arrays, MBR or types with variant generic args - go straight to icalls*/
9665 STELEMREF_KIND_COUNT
9668 static const char *strelemref_wrapper_name[] = {
9669 "object", "sealed_class", "class", "interface", "complex"
9673 is_monomorphic_array (MonoClass *klass)
9675 MonoClass *element_class;
9676 if (klass->rank != 1)
9679 element_class = klass->element_class;
9680 return mono_class_is_sealed (element_class) || element_class->valuetype;
9684 get_virtual_stelemref_kind (MonoClass *element_class)
9686 if (element_class == mono_defaults.object_class)
9687 return STELEMREF_OBJECT;
9688 if (is_monomorphic_array (element_class))
9689 return STELEMREF_SEALED_CLASS;
9690 /* Compressed interface bitmaps require code that is quite complex, so don't optimize for it. */
9691 if (MONO_CLASS_IS_INTERFACE (element_class) && !mono_class_has_variant_generic_params (element_class))
9692 #ifdef COMPRESSED_INTERFACE_BITMAP
9693 return STELEMREF_COMPLEX;
9695 return STELEMREF_INTERFACE;
9697 /*Arrays are sealed but are covariant on their element type, We can't use any of the fast paths.*/
9698 if (mono_class_is_marshalbyref (element_class) || element_class->rank || mono_class_has_variant_generic_params (element_class))
9699 return STELEMREF_COMPLEX;
9700 if (mono_class_is_sealed (element_class))
9701 return STELEMREF_SEALED_CLASS;
9702 return STELEMREF_CLASS;
9708 load_array_element_address (MonoMethodBuilder *mb)
9710 mono_mb_emit_ldarg (mb, 0);
9711 mono_mb_emit_ldarg (mb, 1);
9712 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9716 load_array_class (MonoMethodBuilder *mb, int aklass)
9718 mono_mb_emit_ldarg (mb, 0);
9719 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9720 mono_mb_emit_byte (mb, CEE_LDIND_I);
9721 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9722 mono_mb_emit_byte (mb, CEE_LDIND_I);
9723 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
9724 mono_mb_emit_byte (mb, CEE_LDIND_I);
9725 mono_mb_emit_stloc (mb, aklass);
9729 load_value_class (MonoMethodBuilder *mb, int vklass)
9731 mono_mb_emit_ldarg (mb, 2);
9732 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
9733 mono_mb_emit_byte (mb, CEE_LDIND_I);
9734 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
9735 mono_mb_emit_byte (mb, CEE_LDIND_I);
9736 mono_mb_emit_stloc (mb, vklass);
9742 record_slot_vstore (MonoObject *array, size_t index, MonoObject *value)
9744 char *name = mono_type_get_full_name (array->vtable->klass->element_class);
9745 printf ("slow vstore of %s\n", name);
9752 * - Separate simple interfaces from variant interfaces or mbr types. This way we can avoid the icall for them.
9753 * - Emit a (new) mono bytecode that produces OP_COND_EXC_NE_UN to raise ArrayTypeMismatch
9754 * - Maybe mve some MonoClass field into the vtable to reduce the number of loads
9755 * - Add a case for arrays of arrays.
9758 get_virtual_stelemref_wrapper (int kind)
9760 static MonoMethod *cached_methods [STELEMREF_KIND_COUNT] = { NULL }; /*object iface sealed regular*/
9761 static MonoMethodSignature *signature;
9762 MonoMethodBuilder *mb;
9765 const char *param_names [16];
9766 guint32 b1, b2, b3, b4;
9767 int aklass, vklass, vtable, uiid;
9768 int array_slot_addr;
9771 if (cached_methods [kind])
9772 return cached_methods [kind];
9774 name = g_strdup_printf ("virt_stelemref_%s", strelemref_wrapper_name [kind]);
9775 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STELEMREF);
9779 MonoMethodSignature *sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9781 /* void this::stelemref (size_t idx, void* value) */
9782 sig->ret = &mono_defaults.void_class->byval_arg;
9783 sig->hasthis = TRUE;
9784 sig->params [0] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9785 sig->params [1] = &mono_defaults.object_class->byval_arg;
9790 param_names [0] = "index";
9791 param_names [1] = "value";
9792 mono_mb_set_param_names (mb, param_names);
9794 /*For now simply call plain old stelemref*/
9796 case STELEMREF_OBJECT:
9797 /* ldelema (implicit bound check) */
9798 load_array_element_address (mb);
9800 mono_mb_emit_ldarg (mb, 2);
9801 mono_mb_emit_byte (mb, CEE_STIND_REF);
9802 mono_mb_emit_byte (mb, CEE_RET);
9805 case STELEMREF_COMPLEX: {
9808 <ldelema (bound check)>
9811 if (!mono_object_isinst (value, aklass))
9815 *array_slot_addr = value;
9818 throw new ArrayTypeMismatchException ();
9821 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9822 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9823 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9827 /*Use this to debug/record stores that are going thru the slow path*/
9828 MonoMethodSignature *csig;
9829 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9830 csig->ret = &mono_defaults.void_class->byval_arg;
9831 csig->params [0] = &mono_defaults.object_class->byval_arg;
9832 csig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9833 csig->params [2] = &mono_defaults.object_class->byval_arg;
9834 mono_mb_emit_ldarg (mb, 0);
9835 mono_mb_emit_ldarg (mb, 1);
9836 mono_mb_emit_ldarg (mb, 2);
9837 mono_mb_emit_native_call (mb, csig, record_slot_vstore);
9841 /* ldelema (implicit bound check) */
9842 load_array_element_address (mb);
9843 mono_mb_emit_stloc (mb, array_slot_addr);
9845 /* if (!value) goto do_store */
9846 mono_mb_emit_ldarg (mb, 2);
9847 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9849 /* aklass = array->vtable->klass->element_class */
9850 load_array_class (mb, aklass);
9851 /* vklass = value->vtable->klass */
9852 load_value_class (mb, vklass);
9855 mono_mb_emit_ldloc (mb, vklass);
9856 mono_mb_emit_ldloc (mb, aklass);
9857 b_fast = mono_mb_emit_branch (mb, CEE_BEQ);
9859 /*if (mono_object_isinst (value, aklass)) */
9860 mono_mb_emit_ldarg (mb, 2);
9861 mono_mb_emit_ldloc (mb, aklass);
9862 mono_mb_emit_icall (mb, mono_object_isinst_icall);
9863 b2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9866 mono_mb_patch_branch (mb, b1);
9867 mono_mb_patch_branch (mb, b_fast);
9868 mono_mb_emit_ldloc (mb, array_slot_addr);
9869 mono_mb_emit_ldarg (mb, 2);
9870 mono_mb_emit_byte (mb, CEE_STIND_REF);
9871 mono_mb_emit_byte (mb, CEE_RET);
9874 mono_mb_patch_branch (mb, b2);
9876 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9879 case STELEMREF_SEALED_CLASS:
9881 <ldelema (bound check)>
9885 aklass = array->vtable->klass->element_class;
9886 vklass = value->vtable->klass;
9888 if (vklass != aklass)
9892 *array_slot_addr = value;
9895 throw new ArrayTypeMismatchException ();
9897 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9898 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9899 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9901 /* ldelema (implicit bound check) */
9902 load_array_element_address (mb);
9903 mono_mb_emit_stloc (mb, array_slot_addr);
9905 /* if (!value) goto do_store */
9906 mono_mb_emit_ldarg (mb, 2);
9907 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9909 /* aklass = array->vtable->klass->element_class */
9910 load_array_class (mb, aklass);
9912 /* vklass = value->vtable->klass */
9913 load_value_class (mb, vklass);
9915 /*if (vklass != aklass) goto do_exception; */
9916 mono_mb_emit_ldloc (mb, aklass);
9917 mono_mb_emit_ldloc (mb, vklass);
9918 b2 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9921 mono_mb_patch_branch (mb, b1);
9922 mono_mb_emit_ldloc (mb, array_slot_addr);
9923 mono_mb_emit_ldarg (mb, 2);
9924 mono_mb_emit_byte (mb, CEE_STIND_REF);
9925 mono_mb_emit_byte (mb, CEE_RET);
9928 mono_mb_patch_branch (mb, b2);
9929 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9932 case STELEMREF_CLASS: {
9935 <ldelema (bound check)>
9939 aklass = array->vtable->klass->element_class;
9940 vklass = value->vtable->klass;
9942 if (vklass->idepth < aklass->idepth)
9945 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9949 *array_slot_addr = value;
9953 throw new ArrayTypeMismatchException ();
9955 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9956 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9957 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9959 /* ldelema (implicit bound check) */
9960 load_array_element_address (mb);
9961 mono_mb_emit_stloc (mb, array_slot_addr);
9963 /* if (!value) goto do_store */
9964 mono_mb_emit_ldarg (mb, 2);
9965 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9967 /* aklass = array->vtable->klass->element_class */
9968 load_array_class (mb, aklass);
9970 /* vklass = value->vtable->klass */
9971 load_value_class (mb, vklass);
9973 /* if (vklass->idepth < aklass->idepth) goto failue */
9974 mono_mb_emit_ldloc (mb, vklass);
9975 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9976 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9978 mono_mb_emit_ldloc (mb, aklass);
9979 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9980 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9982 b3 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9984 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9985 mono_mb_emit_ldloc (mb, vklass);
9986 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
9987 mono_mb_emit_byte (mb, CEE_LDIND_I);
9989 mono_mb_emit_ldloc (mb, aklass);
9990 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
9991 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9992 mono_mb_emit_icon (mb, 1);
9993 mono_mb_emit_byte (mb, CEE_SUB);
9994 mono_mb_emit_icon (mb, sizeof (void*));
9995 mono_mb_emit_byte (mb, CEE_MUL);
9996 mono_mb_emit_byte (mb, CEE_ADD);
9997 mono_mb_emit_byte (mb, CEE_LDIND_I);
9999 mono_mb_emit_ldloc (mb, aklass);
10000 b4 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10003 mono_mb_patch_branch (mb, b1);
10004 mono_mb_emit_ldloc (mb, array_slot_addr);
10005 mono_mb_emit_ldarg (mb, 2);
10006 mono_mb_emit_byte (mb, CEE_STIND_REF);
10007 mono_mb_emit_byte (mb, CEE_RET);
10009 /* do_exception: */
10010 mono_mb_patch_branch (mb, b3);
10011 mono_mb_patch_branch (mb, b4);
10013 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10016 case STELEMREF_INTERFACE:
10023 klass = array->obj.vtable->klass->element_class;
10024 vt = value->vtable;
10025 uiid = klass->interface_id;
10026 if (uiid > vt->max_interface_id)
10028 if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7))))
10031 mono_array_setref (array, index, value);
10034 mono_raise_exception (mono_get_exception_array_type_mismatch ());*/
10036 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10037 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10038 vtable = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10039 uiid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10041 /* ldelema (implicit bound check) */
10042 load_array_element_address (mb);
10043 mono_mb_emit_stloc (mb, array_slot_addr);
10045 /* if (!value) goto do_store */
10046 mono_mb_emit_ldarg (mb, 2);
10047 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10049 /* klass = array->vtable->klass->element_class */
10050 load_array_class (mb, aklass);
10052 /* vt = value->vtable */
10053 mono_mb_emit_ldarg (mb, 2);
10054 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10055 mono_mb_emit_byte (mb, CEE_LDIND_I);
10056 mono_mb_emit_stloc (mb, vtable);
10058 /* uiid = klass->interface_id; */
10059 mono_mb_emit_ldloc (mb, aklass);
10060 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, interface_id));
10061 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10062 mono_mb_emit_stloc (mb, uiid);
10064 /*if (uiid > vt->max_interface_id)*/
10065 mono_mb_emit_ldloc (mb, uiid);
10066 mono_mb_emit_ldloc (mb, vtable);
10067 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, max_interface_id));
10068 mono_mb_emit_byte (mb, CEE_LDIND_U4);
10069 b2 = mono_mb_emit_branch (mb, CEE_BGT_UN);
10071 /* if (!(vt->interface_bitmap [(uiid) >> 3] & (1 << ((uiid)&7)))) */
10073 /*vt->interface_bitmap*/
10074 mono_mb_emit_ldloc (mb, vtable);
10075 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, interface_bitmap));
10076 mono_mb_emit_byte (mb, CEE_LDIND_I);
10079 mono_mb_emit_ldloc (mb, uiid);
10080 mono_mb_emit_icon (mb, 3);
10081 mono_mb_emit_byte (mb, CEE_SHR_UN);
10083 /*vt->interface_bitmap [(uiid) >> 3]*/
10084 mono_mb_emit_byte (mb, CEE_ADD); /*interface_bitmap is a guint8 array*/
10085 mono_mb_emit_byte (mb, CEE_LDIND_U1);
10087 /*(1 << ((uiid)&7)))*/
10088 mono_mb_emit_icon (mb, 1);
10089 mono_mb_emit_ldloc (mb, uiid);
10090 mono_mb_emit_icon (mb, 7);
10091 mono_mb_emit_byte (mb, CEE_AND);
10092 mono_mb_emit_byte (mb, CEE_SHL);
10094 /*bitwise and the whole thing*/
10095 mono_mb_emit_byte (mb, CEE_AND);
10096 b3 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10099 mono_mb_patch_branch (mb, b1);
10100 mono_mb_emit_ldloc (mb, array_slot_addr);
10101 mono_mb_emit_ldarg (mb, 2);
10102 mono_mb_emit_byte (mb, CEE_STIND_REF);
10103 mono_mb_emit_byte (mb, CEE_RET);
10105 /* do_exception: */
10106 mono_mb_patch_branch (mb, b2);
10107 mono_mb_patch_branch (mb, b3);
10108 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10112 mono_mb_emit_ldarg (mb, 0);
10113 mono_mb_emit_ldarg (mb, 1);
10114 mono_mb_emit_ldarg (mb, 2);
10115 mono_mb_emit_managed_call (mb, mono_marshal_get_stelemref (), NULL);
10116 mono_mb_emit_byte (mb, CEE_RET);
10119 #endif /* DISABLE_JIT */
10120 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_VIRTUAL_STELEMREF);
10121 info->d.virtual_stelemref.kind = kind;
10122 res = mono_mb_create (mb, signature, 4, info);
10123 res->flags |= METHOD_ATTRIBUTE_VIRTUAL;
10125 mono_marshal_lock ();
10126 if (!cached_methods [kind]) {
10127 cached_methods [kind] = res;
10128 mono_marshal_unlock ();
10130 mono_marshal_unlock ();
10131 mono_free_method (res);
10135 return cached_methods [kind];
10139 mono_marshal_get_virtual_stelemref (MonoClass *array_class)
10143 g_assert (array_class->rank == 1);
10144 kind = get_virtual_stelemref_kind (array_class->element_class);
10146 return get_virtual_stelemref_wrapper (kind);
10150 mono_marshal_get_virtual_stelemref_wrappers (int *nwrappers)
10155 *nwrappers = STELEMREF_KIND_COUNT;
10156 res = (MonoMethod **)g_malloc0 (STELEMREF_KIND_COUNT * sizeof (MonoMethod*));
10157 for (i = 0; i < STELEMREF_KIND_COUNT; ++i)
10158 res [i] = get_virtual_stelemref_wrapper (i);
10163 * mono_marshal_get_stelemref:
10166 mono_marshal_get_stelemref (void)
10168 static MonoMethod* ret = NULL;
10169 MonoMethodSignature *sig;
10170 MonoMethodBuilder *mb;
10173 guint32 b1, b2, b3, b4;
10175 int aklass, vklass;
10176 int array_slot_addr;
10181 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
10184 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
10186 /* void stelemref (void* array, int idx, void* value) */
10187 sig->ret = &mono_defaults.void_class->byval_arg;
10188 sig->params [0] = &mono_defaults.object_class->byval_arg;
10189 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
10190 sig->params [2] = &mono_defaults.object_class->byval_arg;
10192 #ifndef DISABLE_JIT
10193 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10194 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10195 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
10199 <ldelema (bound check)>
10203 aklass = array->vtable->klass->element_class;
10204 vklass = value->vtable->klass;
10206 if (vklass->idepth < aklass->idepth)
10209 if (vklass->supertypes [aklass->idepth - 1] != aklass)
10213 *array_slot_addr = value;
10217 if (mono_object_isinst (value, aklass))
10220 throw new ArrayTypeMismatchException ();
10223 /* ldelema (implicit bound check) */
10224 mono_mb_emit_ldarg (mb, 0);
10225 mono_mb_emit_ldarg (mb, 1);
10226 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
10227 mono_mb_emit_stloc (mb, array_slot_addr);
10229 /* if (!value) goto do_store */
10230 mono_mb_emit_ldarg (mb, 2);
10231 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
10233 /* aklass = array->vtable->klass->element_class */
10234 mono_mb_emit_ldarg (mb, 0);
10235 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10236 mono_mb_emit_byte (mb, CEE_LDIND_I);
10237 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10238 mono_mb_emit_byte (mb, CEE_LDIND_I);
10239 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, element_class));
10240 mono_mb_emit_byte (mb, CEE_LDIND_I);
10241 mono_mb_emit_stloc (mb, aklass);
10243 /* vklass = value->vtable->klass */
10244 mono_mb_emit_ldarg (mb, 2);
10245 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10246 mono_mb_emit_byte (mb, CEE_LDIND_I);
10247 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10248 mono_mb_emit_byte (mb, CEE_LDIND_I);
10249 mono_mb_emit_stloc (mb, vklass);
10251 /* if (vklass->idepth < aklass->idepth) goto failue */
10252 mono_mb_emit_ldloc (mb, vklass);
10253 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10254 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10256 mono_mb_emit_ldloc (mb, aklass);
10257 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10258 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10260 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
10262 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
10263 mono_mb_emit_ldloc (mb, vklass);
10264 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, supertypes));
10265 mono_mb_emit_byte (mb, CEE_LDIND_I);
10267 mono_mb_emit_ldloc (mb, aklass);
10268 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoClass, idepth));
10269 mono_mb_emit_byte (mb, CEE_LDIND_U2);
10270 mono_mb_emit_icon (mb, 1);
10271 mono_mb_emit_byte (mb, CEE_SUB);
10272 mono_mb_emit_icon (mb, sizeof (void*));
10273 mono_mb_emit_byte (mb, CEE_MUL);
10274 mono_mb_emit_byte (mb, CEE_ADD);
10275 mono_mb_emit_byte (mb, CEE_LDIND_I);
10277 mono_mb_emit_ldloc (mb, aklass);
10279 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
10281 copy_pos = mono_mb_get_label (mb);
10283 mono_mb_patch_branch (mb, b1);
10284 mono_mb_emit_ldloc (mb, array_slot_addr);
10285 mono_mb_emit_ldarg (mb, 2);
10286 mono_mb_emit_byte (mb, CEE_STIND_REF);
10288 mono_mb_emit_byte (mb, CEE_RET);
10291 mono_mb_patch_branch (mb, b2);
10292 mono_mb_patch_branch (mb, b3);
10294 mono_mb_emit_ldarg (mb, 2);
10295 mono_mb_emit_ldloc (mb, aklass);
10296 mono_mb_emit_icall (mb, mono_object_isinst_icall);
10298 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
10299 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
10300 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
10302 mono_mb_emit_byte (mb, CEE_RET);
10304 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
10305 ret = mono_mb_create (mb, sig, 4, info);
10312 * mono_marshal_get_gsharedvt_in_wrapper:
10314 * This wrapper handles calls from normal code to gsharedvt code.
10317 mono_marshal_get_gsharedvt_in_wrapper (void)
10319 static MonoMethod* ret = NULL;
10320 MonoMethodSignature *sig;
10321 MonoMethodBuilder *mb;
10327 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_in", MONO_WRAPPER_UNKNOWN);
10329 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10330 sig->ret = &mono_defaults.void_class->byval_arg;
10332 #ifndef DISABLE_JIT
10334 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10336 mono_mb_emit_byte (mb, CEE_RET);
10338 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_IN);
10339 ret = mono_mb_create (mb, sig, 4, info);
10346 * mono_marshal_get_gsharedvt_out_wrapper:
10348 * This wrapper handles calls from gsharedvt code to normal code.
10351 mono_marshal_get_gsharedvt_out_wrapper (void)
10353 static MonoMethod* ret = NULL;
10354 MonoMethodSignature *sig;
10355 MonoMethodBuilder *mb;
10361 mb = mono_mb_new (mono_defaults.object_class, "gsharedvt_out", MONO_WRAPPER_UNKNOWN);
10363 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
10364 sig->ret = &mono_defaults.void_class->byval_arg;
10366 #ifndef DISABLE_JIT
10368 * The body is generated by the JIT, we use a wrapper instead of a trampoline so EH works.
10370 mono_mb_emit_byte (mb, CEE_RET);
10372 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GSHAREDVT_OUT);
10373 ret = mono_mb_create (mb, sig, 4, info);
10382 MonoMethod *method;
10385 /* LOCKING: vars accessed under the marshal lock */
10386 static ArrayElemAddr *elem_addr_cache = NULL;
10387 static int elem_addr_cache_size = 0;
10388 static int elem_addr_cache_next = 0;
10391 * mono_marshal_get_array_address:
10392 * \param rank rank of the array type
10393 * \param elem_size size in bytes of an element of an array.
10395 * Returns a MonoMethod that implements the code to get the address
10396 * of an element in a multi-dimenasional array of \p rank dimensions.
10397 * The returned method takes an array as the first argument and then
10398 * \p rank indexes for the \p rank dimensions.
10399 * If ELEM_SIZE is 0, read the array size from the array object.
10402 mono_marshal_get_array_address (int rank, int elem_size)
10405 MonoMethodBuilder *mb;
10406 MonoMethodSignature *sig;
10409 int i, bounds, ind, realidx;
10410 int branch_pos, *branch_positions;
10414 mono_marshal_lock ();
10415 for (i = 0; i < elem_addr_cache_next; ++i) {
10416 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10417 ret = elem_addr_cache [i].method;
10421 mono_marshal_unlock ();
10425 branch_positions = g_new0 (int, rank);
10427 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
10429 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
10430 sig->ret = &mono_defaults.int_class->byval_arg;
10431 sig->params [0] = &mono_defaults.object_class->byval_arg;
10432 for (i = 0; i < rank; ++i) {
10433 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
10436 name = g_strdup_printf ("ElementAddr_%d", elem_size);
10437 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
10440 #ifndef DISABLE_JIT
10441 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
10442 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10443 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
10445 /* bounds = array->bounds; */
10446 mono_mb_emit_ldarg (mb, 0);
10447 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, bounds));
10448 mono_mb_emit_byte (mb, CEE_LDIND_I);
10449 mono_mb_emit_stloc (mb, bounds);
10451 /* ind is the overall element index, realidx is the partial index in a single dimension */
10452 /* ind = idx0 - bounds [0].lower_bound */
10453 mono_mb_emit_ldarg (mb, 1);
10454 mono_mb_emit_ldloc (mb, bounds);
10455 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10456 mono_mb_emit_byte (mb, CEE_ADD);
10457 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10458 mono_mb_emit_byte (mb, CEE_SUB);
10459 mono_mb_emit_stloc (mb, ind);
10460 /* if (ind >= bounds [0].length) goto exeception; */
10461 mono_mb_emit_ldloc (mb, ind);
10462 mono_mb_emit_ldloc (mb, bounds);
10463 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10464 mono_mb_emit_byte (mb, CEE_ADD);
10465 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10466 /* note that we use unsigned comparison */
10467 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
10469 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
10470 * We could also decide to ignore the passed elem_size and get it
10471 * from the array object, to reduce the number of methods we generate:
10472 * the additional cost is 3 memory loads and a non-immediate mul.
10474 for (i = 1; i < rank; ++i) {
10475 /* realidx = idxi - bounds [i].lower_bound */
10476 mono_mb_emit_ldarg (mb, 1 + i);
10477 mono_mb_emit_ldloc (mb, bounds);
10478 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
10479 mono_mb_emit_byte (mb, CEE_ADD);
10480 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10481 mono_mb_emit_byte (mb, CEE_SUB);
10482 mono_mb_emit_stloc (mb, realidx);
10483 /* if (realidx >= bounds [i].length) goto exeception; */
10484 mono_mb_emit_ldloc (mb, realidx);
10485 mono_mb_emit_ldloc (mb, bounds);
10486 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10487 mono_mb_emit_byte (mb, CEE_ADD);
10488 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10489 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
10490 /* ind = ind * bounds [i].length + realidx */
10491 mono_mb_emit_ldloc (mb, ind);
10492 mono_mb_emit_ldloc (mb, bounds);
10493 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
10494 mono_mb_emit_byte (mb, CEE_ADD);
10495 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10496 mono_mb_emit_byte (mb, CEE_MUL);
10497 mono_mb_emit_ldloc (mb, realidx);
10498 mono_mb_emit_byte (mb, CEE_ADD);
10499 mono_mb_emit_stloc (mb, ind);
10502 /* return array->vector + ind * element_size */
10503 mono_mb_emit_ldarg (mb, 0);
10504 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoArray, vector));
10505 mono_mb_emit_ldloc (mb, ind);
10507 mono_mb_emit_icon (mb, elem_size);
10509 /* Load arr->vtable->klass->sizes.element_class */
10510 mono_mb_emit_ldarg (mb, 0);
10511 mono_mb_emit_byte (mb, CEE_CONV_I);
10512 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
10513 mono_mb_emit_byte (mb, CEE_ADD);
10514 mono_mb_emit_byte (mb, CEE_LDIND_I);
10515 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
10516 mono_mb_emit_byte (mb, CEE_ADD);
10517 mono_mb_emit_byte (mb, CEE_LDIND_I);
10518 /* sizes is an union, so this reads sizes.element_size */
10519 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoClass, sizes));
10520 mono_mb_emit_byte (mb, CEE_ADD);
10521 mono_mb_emit_byte (mb, CEE_LDIND_I4);
10523 mono_mb_emit_byte (mb, CEE_MUL);
10524 mono_mb_emit_byte (mb, CEE_ADD);
10525 mono_mb_emit_byte (mb, CEE_RET);
10527 /* patch the branches to get here and throw */
10528 for (i = 1; i < rank; ++i) {
10529 mono_mb_patch_branch (mb, branch_positions [i]);
10531 mono_mb_patch_branch (mb, branch_pos);
10532 /* throw exception */
10533 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
10535 g_free (branch_positions);
10536 #endif /* DISABLE_JIT */
10538 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ELEMENT_ADDR);
10539 info->d.element_addr.rank = rank;
10540 info->d.element_addr.elem_size = elem_size;
10541 ret = mono_mb_create (mb, sig, 4, info);
10544 /* cache the result */
10546 mono_marshal_lock ();
10547 for (i = 0; i < elem_addr_cache_next; ++i) {
10548 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
10549 /* FIXME: free ret */
10550 ret = elem_addr_cache [i].method;
10556 if (elem_addr_cache_next >= elem_addr_cache_size) {
10557 int new_size = elem_addr_cache_size + 4;
10558 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
10559 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
10560 g_free (elem_addr_cache);
10561 elem_addr_cache = new_array;
10562 elem_addr_cache_size = new_size;
10564 elem_addr_cache [elem_addr_cache_next].rank = rank;
10565 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
10566 elem_addr_cache [elem_addr_cache_next].method = ret;
10567 elem_addr_cache_next ++;
10569 mono_marshal_unlock ();
10574 * mono_marshal_get_array_accessor_wrapper:
10576 * Return a wrapper which just calls METHOD, which should be an Array Get/Set/Address method.
10579 mono_marshal_get_array_accessor_wrapper (MonoMethod *method)
10581 MonoMethodSignature *sig;
10582 MonoMethodBuilder *mb;
10586 MonoGenericContext *ctx = NULL;
10587 MonoMethod *orig_method = NULL;
10588 MonoGenericContainer *container = NULL;
10592 * These wrappers are needed to avoid the JIT replacing the calls to these methods with intrinsics
10593 * inside runtime invoke wrappers, thereby making the wrappers not unshareable.
10594 * FIXME: Use generic methods.
10601 g_assert_not_reached ();
10603 cache = get_cache (&method->klass->image->array_accessor_cache, mono_aligned_addr_hash, NULL);
10604 if ((res = mono_marshal_find_in_cache (cache, method)))
10608 sig = mono_metadata_signature_dup_full (method->klass->image, mono_method_signature (method));
10611 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNKNOWN);
10613 #ifndef DISABLE_JIT
10614 /* Call the method */
10616 mono_mb_emit_ldarg (mb, 0);
10617 for (i = 0; i < sig->param_count; i++)
10618 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
10622 mono_mb_emit_managed_call (mb, mono_class_inflate_generic_method_checked (method, &container->context, &error), NULL);
10623 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
10625 mono_mb_emit_managed_call (mb, method, NULL);
10627 mono_mb_emit_byte (mb, CEE_RET);
10630 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_ARRAY_ACCESSOR);
10631 info->d.array_accessor.method = method;
10635 def = mono_mb_create_and_cache_full (cache, method, mb, sig, sig->param_count + 16, info, NULL);
10636 res = cache_generic_wrapper (cache, orig_method, def, ctx, orig_method);
10638 res = mono_mb_create_and_cache_full (cache, method,
10639 mb, sig, sig->param_count + 16,
10648 static inline void*
10649 mono_marshal_alloc_co_task_mem (size_t size)
10651 if ((gulong)size == 0)
10652 /* This returns a valid pointer for size 0 on MS.NET */
10655 return g_try_malloc ((gulong)size);
10660 * mono_marshal_alloc:
10663 mono_marshal_alloc (gsize size, MonoError *error)
10667 error_init (error);
10669 res = mono_marshal_alloc_co_task_mem (size);
10671 mono_error_set_out_of_memory (error, "Could not allocate %lu bytes", size);
10676 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10678 ves_icall_marshal_alloc (gsize size)
10681 void *ret = mono_marshal_alloc (size, &error);
10682 if (!mono_error_ok (&error)) {
10683 mono_error_set_pending_exception (&error);
10692 mono_marshal_free_co_task_mem (void *ptr)
10700 * mono_marshal_free:
10703 mono_marshal_free (gpointer ptr)
10705 mono_marshal_free_co_task_mem (ptr);
10709 * mono_marshal_free_array:
10712 mono_marshal_free_array (gpointer *ptr, int size)
10719 for (i = 0; i < size; i++)
10725 mono_marshal_string_to_utf16 (MonoString *s)
10727 return s ? mono_string_chars (s) : NULL;
10730 /* This is a JIT icall, it sets the pending exception and returns NULL on error. */
10732 mono_marshal_string_to_utf16_copy (MonoString *s)
10738 gunichar2 *res = (gunichar2 *)mono_marshal_alloc ((mono_string_length (s) * 2) + 2, &error);
10739 if (!mono_error_ok (&error)) {
10740 mono_error_set_pending_exception (&error);
10743 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
10744 res [mono_string_length (s)] = 0;
10750 * mono_marshal_set_last_error:
10752 * This function is invoked to set the last error value from a P/Invoke call
10753 * which has \c SetLastError set.
10756 mono_marshal_set_last_error (void)
10759 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
10761 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (errno));
10766 mono_marshal_set_last_error_windows (int error)
10769 mono_native_tls_set_value (last_error_tls_id, GINT_TO_POINTER (error));
10774 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
10775 gpointer dest, gint32 length)
10780 MONO_CHECK_ARG_NULL (src,);
10781 MONO_CHECK_ARG_NULL (dest,);
10783 if (src->obj.vtable->klass->rank != 1) {
10784 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10787 if (start_index < 0) {
10788 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10792 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10795 if (start_index + length > mono_array_length (src)) {
10796 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10800 element_size = mono_array_element_size (src->obj.vtable->klass);
10802 /* no references should be involved */
10803 source_addr = mono_array_addr_with_size_fast (src, element_size, start_index);
10805 memcpy (dest, source_addr, length * element_size);
10809 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
10810 MonoArray *dest, gint32 length)
10815 MONO_CHECK_ARG_NULL (src,);
10816 MONO_CHECK_ARG_NULL (dest,);
10818 if (dest->obj.vtable->klass->rank != 1) {
10819 mono_set_pending_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
10822 if (start_index < 0) {
10823 mono_set_pending_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
10827 mono_set_pending_exception (mono_get_exception_argument ("length", "Must be >= 0"));
10830 if (start_index + length > mono_array_length (dest)) {
10831 mono_set_pending_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
10834 element_size = mono_array_element_size (dest->obj.vtable->klass);
10836 /* no references should be involved */
10837 dest_addr = mono_array_addr_with_size_fast (dest, element_size, start_index);
10839 memcpy (dest_addr, src, length * element_size);
10843 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
10848 return mono_string_new (mono_domain_get (), ptr);
10852 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
10855 MonoString *result = NULL;
10856 error_init (&error);
10858 mono_error_set_argument_null (&error, "ptr", "");
10860 result = mono_string_new_len_checked (mono_domain_get (), ptr, len, &error);
10861 mono_error_set_pending_exception (&error);
10866 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
10869 MonoString *res = NULL;
10870 MonoDomain *domain = mono_domain_get ();
10880 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10881 if (!mono_error_ok (&error)) {
10882 mono_error_set_pending_exception (&error);
10889 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
10892 MonoString *res = NULL;
10893 MonoDomain *domain = mono_domain_get ();
10895 error_init (&error);
10899 mono_error_set_argument_null (&error, "ptr", "");
10901 res = mono_string_new_utf16_checked (domain, ptr, len, &error);
10904 if (!mono_error_ok (&error))
10905 mono_error_set_pending_exception (&error);
10910 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10912 return (GPOINTER_TO_INT (mono_native_tls_get_value (last_error_tls_id)));
10916 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10922 MONO_CHECK_ARG_NULL (rtype, 0);
10924 type = rtype->type;
10925 klass = mono_class_from_mono_type (type);
10926 if (!mono_class_init (klass)) {
10927 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
10931 layout = (mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK);
10933 if (type->type == MONO_TYPE_PTR || type->type == MONO_TYPE_FNPTR) {
10934 return sizeof (gpointer);
10935 } else if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10937 MonoException *exc;
10939 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10940 exc = mono_get_exception_argument ("t", msg);
10942 mono_set_pending_exception (exc);
10946 return mono_class_native_size (klass, NULL);
10950 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10953 MonoMethod *method;
10956 MONO_CHECK_ARG_NULL (obj,);
10957 MONO_CHECK_ARG_NULL (dst,);
10959 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10963 pa [2] = &delete_old;
10965 mono_runtime_invoke_checked (method, NULL, pa, &error);
10966 if (!mono_error_ok (&error))
10967 mono_error_set_pending_exception (&error);
10971 ptr_to_structure (gpointer src, MonoObject *dst, MonoError *error)
10973 MonoMethod *method;
10976 error_init (error);
10978 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10983 mono_runtime_invoke_checked (method, NULL, pa, error);
10987 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10992 MONO_CHECK_ARG_NULL (src,);
10993 MONO_CHECK_ARG_NULL (dst,);
10995 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10997 if (t->type == MONO_TYPE_VALUETYPE) {
10998 MonoException *exc;
11001 tmp = g_strdup_printf ("Destination is a boxed value type.");
11002 exc = mono_get_exception_argument ("dst", tmp);
11005 mono_set_pending_exception (exc);
11009 ptr_to_structure (src, dst, &error);
11010 if (!mono_error_ok (&error))
11011 mono_error_set_pending_exception (&error);
11015 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
11019 MonoDomain *domain = mono_domain_get ();
11024 MONO_CHECK_ARG_NULL (type, NULL);
11026 klass = mono_class_from_mono_type (type->type);
11027 if (!mono_class_init (klass)) {
11028 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11032 res = mono_object_new_checked (domain, klass, &error);
11033 if (!mono_error_ok (&error)) {
11034 mono_error_set_pending_exception (&error);
11038 ptr_to_structure (src, res, &error);
11039 if (!mono_error_ok (&error)) {
11040 mono_error_set_pending_exception (&error);
11048 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
11051 MonoMarshalType *info;
11054 int match_index = -1;
11056 MONO_CHECK_ARG_NULL (type, 0);
11057 MONO_CHECK_ARG_NULL (field_name, 0);
11059 fname = mono_string_to_utf8_checked (field_name, &error);
11060 if (mono_error_set_pending_exception (&error))
11062 klass = mono_class_from_mono_type (type->type);
11063 if (!mono_class_init (klass)) {
11064 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11068 while (klass && match_index == -1) {
11069 MonoClassField* field;
11071 gpointer iter = NULL;
11072 while ((field = mono_class_get_fields (klass, &iter))) {
11073 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11075 if (!strcmp (fname, mono_field_get_name (field))) {
11082 if (match_index == -1)
11083 klass = klass->parent;
11088 if(match_index == -1) {
11089 MonoException* exc;
11092 /* Get back original class instance */
11093 klass = mono_class_from_mono_type (type->type);
11095 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
11096 exc = mono_get_exception_argument ("fieldName", tmp);
11099 mono_set_pending_exception ((MonoException*)exc);
11103 info = mono_marshal_load_type_info (klass);
11104 return info->fields [match_index].offset;
11109 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
11112 char *ret = mono_string_to_utf8_checked (string, &error);
11113 mono_error_set_pending_exception (&error);
11118 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
11120 if (string == NULL)
11123 gunichar2 *res = (gunichar2 *)g_malloc ((mono_string_length (string) + 1) * 2);
11125 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
11126 res [mono_string_length (string)] = 0;
11130 #endif /* !HOST_WIN32 */
11133 mono_struct_delete_old (MonoClass *klass, char *ptr)
11135 MonoMarshalType *info;
11138 info = mono_marshal_load_type_info (klass);
11140 for (i = 0; i < info->num_fields; i++) {
11141 MonoMarshalConv conv;
11142 MonoType *ftype = info->fields [i].field->type;
11145 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
11148 mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
11149 klass->unicode, &conv);
11151 cpos = ptr + info->fields [i].offset;
11154 case MONO_MARSHAL_CONV_NONE:
11155 if (MONO_TYPE_ISSTRUCT (ftype)) {
11156 mono_struct_delete_old (ftype->data.klass, cpos);
11160 case MONO_MARSHAL_CONV_STR_LPWSTR:
11161 /* We assume this field points inside a MonoString */
11163 case MONO_MARSHAL_CONV_STR_LPTSTR:
11164 #ifdef TARGET_WIN32
11165 /* We assume this field points inside a MonoString
11169 case MONO_MARSHAL_CONV_STR_LPSTR:
11170 case MONO_MARSHAL_CONV_STR_BSTR:
11171 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
11172 case MONO_MARSHAL_CONV_STR_TBSTR:
11173 case MONO_MARSHAL_CONV_STR_UTF8STR:
11174 mono_marshal_free (*(gpointer *)cpos);
11184 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
11188 MONO_CHECK_ARG_NULL (src,);
11189 MONO_CHECK_ARG_NULL (type,);
11191 klass = mono_class_from_mono_type (type->type);
11192 if (!mono_class_init (klass)) {
11193 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11197 mono_struct_delete_old (klass, (char *)src);
11201 static inline void *
11202 mono_marshal_alloc_hglobal (size_t size)
11204 return g_try_malloc (size);
11209 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (gpointer size)
11212 size_t s = (size_t)size;
11215 /* This returns a valid pointer for size 0 on MS.NET */
11218 res = mono_marshal_alloc_hglobal (s);
11221 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11229 static inline gpointer
11230 mono_marshal_realloc_hglobal (gpointer ptr, size_t size)
11232 return g_try_realloc (ptr, size);
11237 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, gpointer size)
11240 size_t s = (size_t)size;
11243 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11247 res = mono_marshal_realloc_hglobal (ptr, s);
11250 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11259 mono_marshal_free_hglobal (gpointer ptr)
11267 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
11269 mono_marshal_free_hglobal (ptr);
11273 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
11275 void *res = mono_marshal_alloc_co_task_mem (size);
11278 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11285 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMemSize (gulong size)
11287 void *res = mono_marshal_alloc_co_task_mem (size);
11290 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11297 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
11299 mono_marshal_free_co_task_mem (ptr);
11304 static inline gpointer
11305 mono_marshal_realloc_co_task_mem (gpointer ptr, size_t size)
11307 return g_try_realloc (ptr, (gulong)size);
11312 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
11314 void *res = mono_marshal_realloc_co_task_mem (ptr, size);
11317 mono_set_pending_exception (mono_domain_get ()->out_of_memory_ex);
11324 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
11326 return mono_array_addr_with_size_fast (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
11330 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
11332 MonoClass *klass = mono_type_get_class (type->type);
11333 if (!mono_class_init (klass)) {
11334 mono_set_pending_exception (mono_class_get_exception_for_failure (klass));
11338 return mono_ftnptr_to_delegate (klass, ftn);
11342 ves_icall_System_Runtime_InteropServices_Marshal_GetFunctionPointerForDelegateInternal (MonoDelegate *delegate)
11344 return mono_delegate_to_ftnptr (delegate);
11348 * mono_marshal_is_loading_type_info:
11350 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
11354 mono_marshal_is_loading_type_info (MonoClass *klass)
11356 GSList *loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11358 return g_slist_find (loads_list, klass) != NULL;
11362 * mono_marshal_load_type_info:
11364 * Initialize \c klass::marshal_info using information from metadata. This function can
11365 * recursively call itself, and the caller is responsible to avoid that by calling
11366 * \c mono_marshal_is_loading_type_info beforehand.
11368 * LOCKING: Acquires the loader lock.
11371 mono_marshal_load_type_info (MonoClass* klass)
11374 guint32 native_size = 0, min_align = 1, packing;
11375 MonoMarshalType *info;
11376 MonoClassField* field;
11379 GSList *loads_list;
11381 g_assert (klass != NULL);
11383 info = mono_class_get_marshal_info (klass);
11387 if (!klass->inited)
11388 mono_class_init (klass);
11390 info = mono_class_get_marshal_info (klass);
11395 * This function can recursively call itself, so we keep the list of classes which are
11396 * under initialization in a TLS list.
11398 g_assert (!mono_marshal_is_loading_type_info (klass));
11399 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11400 loads_list = g_slist_prepend (loads_list, klass);
11401 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11404 while ((field = mono_class_get_fields (klass, &iter))) {
11405 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11407 if (mono_field_is_deleted (field))
11412 layout = mono_class_get_flags (klass) & TYPE_ATTRIBUTE_LAYOUT_MASK;
11414 /* The mempool is protected by the loader lock */
11415 info = (MonoMarshalType *)mono_image_alloc0 (klass->image, MONO_SIZEOF_MARSHAL_TYPE + sizeof (MonoMarshalField) * count);
11416 info->num_fields = count;
11418 /* Try to find a size for this type in metadata */
11419 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
11421 if (klass->parent) {
11422 int parent_size = mono_class_native_size (klass->parent, NULL);
11424 /* Add parent size to real size */
11425 native_size += parent_size;
11426 info->native_size = parent_size;
11429 packing = klass->packing_size ? klass->packing_size : 8;
11432 while ((field = mono_class_get_fields (klass, &iter))) {
11436 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
11439 if (mono_field_is_deleted (field))
11441 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
11442 mono_metadata_field_info_with_mempool (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
11443 NULL, NULL, &info->fields [j].mspec);
11445 info->fields [j].field = field;
11447 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
11448 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
11449 /* This field is a hack inserted by MCS to empty structures */
11454 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
11455 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
11456 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11457 &align, TRUE, klass->unicode);
11458 align = klass->packing_size ? MIN (klass->packing_size, align): align;
11459 min_align = MAX (align, min_align);
11460 info->fields [j].offset = info->native_size;
11461 info->fields [j].offset += align - 1;
11462 info->fields [j].offset &= ~(align - 1);
11463 info->native_size = info->fields [j].offset + size;
11465 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
11466 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
11467 &align, TRUE, klass->unicode);
11468 min_align = MAX (align, min_align);
11469 info->fields [j].offset = field->offset - sizeof (MonoObject);
11470 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
11476 if (klass->byval_arg.type == MONO_TYPE_PTR)
11477 info->native_size = sizeof (gpointer);
11479 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
11480 info->native_size = MAX (native_size, info->native_size);
11482 * If the provided Size is equal or larger than the calculated size, and there
11483 * was no Pack attribute, we set min_align to 1 to avoid native_size being increased
11485 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
11486 if (native_size && native_size == info->native_size && klass->packing_size == 0)
11489 min_align = MIN (min_align, packing);
11493 if (info->native_size & (min_align - 1)) {
11494 info->native_size += min_align - 1;
11495 info->native_size &= ~(min_align - 1);
11498 info->min_align = min_align;
11500 /* Update the class's blittable info, if the layouts don't match */
11501 if (info->native_size != mono_class_value_size (klass, NULL))
11502 klass->blittable = FALSE;
11504 /* If this is an array type, ensure that we have element info */
11505 if (klass->rank && !mono_marshal_is_loading_type_info (klass->element_class)) {
11506 mono_marshal_load_type_info (klass->element_class);
11509 loads_list = (GSList *)mono_native_tls_get_value (load_type_info_tls_id);
11510 loads_list = g_slist_remove (loads_list, klass);
11511 mono_native_tls_set_value (load_type_info_tls_id, loads_list);
11513 mono_marshal_lock ();
11514 MonoMarshalType *info2 = mono_class_get_marshal_info (klass);
11516 /*We do double-checking locking on marshal_info */
11517 mono_memory_barrier ();
11518 mono_class_set_marshal_info (klass, info);
11519 ++class_marshal_info_count;
11522 mono_marshal_unlock ();
11528 * mono_class_native_size:
11529 * \param klass a class
11530 * \returns the native size of an object instance (when marshaled
11531 * to unmanaged code)
11534 mono_class_native_size (MonoClass *klass, guint32 *align)
11536 MonoMarshalType *info = mono_class_get_marshal_info (klass);
11538 if (mono_marshal_is_loading_type_info (klass)) {
11543 mono_marshal_load_type_info (klass);
11545 info = mono_class_get_marshal_info (klass);
11549 *align = info->min_align;
11551 return info->native_size;
11555 * mono_type_native_stack_size:
11556 * @t: the type to return the size it uses on the stack
11558 * Returns: the number of bytes required to hold an instance of this
11559 * type on the native stack
11562 mono_type_native_stack_size (MonoType *t, guint32 *align)
11566 g_assert (t != NULL);
11572 *align = sizeof (gpointer);
11573 return sizeof (gpointer);
11577 case MONO_TYPE_BOOLEAN:
11578 case MONO_TYPE_CHAR:
11589 case MONO_TYPE_STRING:
11590 case MONO_TYPE_OBJECT:
11591 case MONO_TYPE_CLASS:
11592 case MONO_TYPE_SZARRAY:
11593 case MONO_TYPE_PTR:
11594 case MONO_TYPE_FNPTR:
11595 case MONO_TYPE_ARRAY:
11596 *align = sizeof (gpointer);
11597 return sizeof (gpointer);
11602 *align = MONO_ABI_ALIGNOF (double);
11606 *align = MONO_ABI_ALIGNOF (gint64);
11608 case MONO_TYPE_GENERICINST:
11609 if (!mono_type_generic_inst_is_valuetype (t)) {
11610 *align = sizeof (gpointer);
11611 return sizeof (gpointer);
11614 case MONO_TYPE_TYPEDBYREF:
11615 case MONO_TYPE_VALUETYPE: {
11617 MonoClass *klass = mono_class_from_mono_type (t);
11619 if (klass->enumtype)
11620 return mono_type_native_stack_size (mono_class_enum_basetype (klass), align);
11622 size = mono_class_native_size (klass, align);
11623 *align = *align + 3;
11633 g_error ("type 0x%02x unknown", t->type);
11639 * mono_marshal_type_size:
11642 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
11643 gboolean as_field, gboolean unicode)
11645 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
11648 switch (native_type) {
11649 case MONO_NATIVE_BOOLEAN:
11652 case MONO_NATIVE_I1:
11653 case MONO_NATIVE_U1:
11656 case MONO_NATIVE_I2:
11657 case MONO_NATIVE_U2:
11658 case MONO_NATIVE_VARIANTBOOL:
11661 case MONO_NATIVE_I4:
11662 case MONO_NATIVE_U4:
11663 case MONO_NATIVE_ERROR:
11666 case MONO_NATIVE_I8:
11667 case MONO_NATIVE_U8:
11668 *align = MONO_ABI_ALIGNOF (gint64);
11670 case MONO_NATIVE_R4:
11673 case MONO_NATIVE_R8:
11674 *align = MONO_ABI_ALIGNOF (double);
11676 case MONO_NATIVE_INT:
11677 case MONO_NATIVE_UINT:
11678 case MONO_NATIVE_LPSTR:
11679 case MONO_NATIVE_LPWSTR:
11680 case MONO_NATIVE_LPTSTR:
11681 case MONO_NATIVE_BSTR:
11682 case MONO_NATIVE_ANSIBSTR:
11683 case MONO_NATIVE_TBSTR:
11684 case MONO_NATIVE_UTF8STR:
11685 case MONO_NATIVE_LPARRAY:
11686 case MONO_NATIVE_SAFEARRAY:
11687 case MONO_NATIVE_IUNKNOWN:
11688 case MONO_NATIVE_IDISPATCH:
11689 case MONO_NATIVE_INTERFACE:
11690 case MONO_NATIVE_ASANY:
11691 case MONO_NATIVE_FUNC:
11692 case MONO_NATIVE_LPSTRUCT:
11693 *align = MONO_ABI_ALIGNOF (gpointer);
11694 return sizeof (gpointer);
11695 case MONO_NATIVE_STRUCT:
11696 klass = mono_class_from_mono_type (type);
11697 if (klass == mono_defaults.object_class &&
11698 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
11702 return mono_class_native_size (klass, align);
11703 case MONO_NATIVE_BYVALTSTR: {
11704 int esize = unicode ? 2: 1;
11707 return mspec->data.array_data.num_elem * esize;
11709 case MONO_NATIVE_BYVALARRAY: {
11710 // FIXME: Have to consider ArraySubType
11712 klass = mono_class_from_mono_type (type);
11713 if (klass->element_class == mono_defaults.char_class) {
11714 esize = unicode ? 2 : 1;
11717 esize = mono_class_native_size (klass->element_class, align);
11720 return mspec->data.array_data.num_elem * esize;
11722 case MONO_NATIVE_CUSTOM:
11723 *align = sizeof (gpointer);
11724 return sizeof (gpointer);
11726 case MONO_NATIVE_CURRENCY:
11727 case MONO_NATIVE_VBBYREFSTR:
11729 g_error ("native type %02x not implemented", native_type);
11732 g_assert_not_reached ();
11737 * mono_marshal_asany:
11738 * This is a JIT icall, it sets the pending exception and returns NULL on error.
11741 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
11750 t = &o->vtable->klass->byval_arg;
11754 case MONO_TYPE_PTR:
11757 case MONO_TYPE_BOOLEAN:
11760 case MONO_TYPE_CHAR:
11765 return mono_object_unbox (o);
11767 case MONO_TYPE_STRING:
11768 switch (string_encoding) {
11769 case MONO_NATIVE_LPWSTR:
11770 return mono_marshal_string_to_utf16_copy ((MonoString*)o);
11771 case MONO_NATIVE_LPSTR:
11772 case MONO_NATIVE_UTF8STR:
11773 // Same code path, because in Mono, we treated strings as Utf8
11774 return mono_string_to_utf8str ((MonoString*)o);
11776 g_warning ("marshaling conversion %d not implemented", string_encoding);
11777 g_assert_not_reached ();
11780 case MONO_TYPE_CLASS:
11781 case MONO_TYPE_VALUETYPE: {
11782 MonoMethod *method;
11785 MonoBoolean delete_old = FALSE;
11787 klass = t->data.klass;
11789 if (mono_class_is_auto_layout (klass))
11792 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11793 return mono_object_unbox (o);
11795 res = mono_marshal_alloc (mono_class_native_size (klass, NULL), &error);
11796 if (!mono_error_ok (&error)) {
11797 mono_error_set_pending_exception (&error);
11801 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11802 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
11806 pa [2] = &delete_old;
11808 mono_runtime_invoke_checked (method, NULL, pa, &error);
11809 if (!mono_error_ok (&error)) {
11810 mono_error_set_pending_exception (&error);
11820 mono_set_pending_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
11825 * mono_marshal_free_asany:
11826 * This is a JIT icall, it sets the pending exception
11829 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11838 t = &o->vtable->klass->byval_arg;
11840 case MONO_TYPE_STRING:
11841 switch (string_encoding) {
11842 case MONO_NATIVE_LPWSTR:
11843 case MONO_NATIVE_LPSTR:
11844 case MONO_NATIVE_UTF8STR:
11845 mono_marshal_free (ptr);
11848 g_warning ("marshaling conversion %d not implemented", string_encoding);
11849 g_assert_not_reached ();
11852 case MONO_TYPE_CLASS:
11853 case MONO_TYPE_VALUETYPE: {
11854 klass = t->data.klass;
11856 if (klass->valuetype && (mono_class_is_explicit_layout (klass) || klass->blittable || klass->enumtype))
11859 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11860 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11866 mono_runtime_invoke_checked (method, NULL, pa, &error);
11867 if (!mono_error_ok (&error)) {
11868 mono_error_set_pending_exception (&error);
11873 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11874 mono_struct_delete_old (klass, (char *)ptr);
11877 mono_marshal_free (ptr);
11886 * mono_marshal_get_generic_array_helper:
11888 * Return a wrapper which is used to implement the implicit interfaces on arrays.
11889 * The wrapper routes calls to METHOD, which is one of the InternalArray_ methods in Array.
11892 mono_marshal_get_generic_array_helper (MonoClass *klass, gchar *name, MonoMethod *method)
11894 MonoMethodSignature *sig, *csig;
11895 MonoMethodBuilder *mb;
11900 mb = mono_mb_new_no_dup_name (klass, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11901 mb->method->slot = -1;
11903 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11904 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11906 sig = mono_method_signature (method);
11907 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
11908 csig->generic_param_count = 0;
11910 #ifndef DISABLE_JIT
11911 mono_mb_emit_ldarg (mb, 0);
11912 for (i = 0; i < csig->param_count; i++)
11913 mono_mb_emit_ldarg (mb, i + 1);
11914 mono_mb_emit_managed_call (mb, method, NULL);
11915 mono_mb_emit_byte (mb, CEE_RET);
11917 /* We can corlib internal methods */
11918 mb->skip_visibility = TRUE;
11920 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_GENERIC_ARRAY_HELPER);
11921 info->d.generic_array_helper.method = method;
11922 res = mono_mb_create (mb, csig, csig->param_count + 16, info);
11930 * The mono_win32_compat_* functions are implementations of inline
11931 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11932 * although not exported by kernel32.
11934 * We map the appropiate kernel32 entries to these functions using
11935 * dllmaps declared in the global etc/mono/config.
11939 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11941 if (!dest || !source)
11944 memcpy (dest, source, length);
11948 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11950 memset (dest, fill, length);
11954 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11956 if (!dest || !source)
11959 memmove (dest, source, length);
11963 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11965 memset (dest, 0, length);
11969 mono_marshal_find_nonzero_bit_offset (guint8 *buf, int len, int *byte_offset, guint8 *bitmask)
11974 for (i = 0; i < len; ++i)
11978 g_assert (i < len);
11981 while (byte && !(byte & 1))
11983 g_assert (byte == 1);
11986 *bitmask = buf [i];
11990 mono_marshal_get_thunk_invoke_wrapper (MonoMethod *method)
11992 MonoMethodBuilder *mb;
11993 MonoMethodSignature *sig, *csig;
11994 MonoExceptionClause *clause;
11999 int i, param_count, sig_size, pos_leave;
12003 // FIXME: we need to store the exception into a MonoHandle
12004 g_assert (!mono_threads_is_coop_enabled ());
12006 klass = method->klass;
12007 image = method->klass->image;
12009 cache = get_cache (&mono_method_get_wrapper_cache (method)->thunk_invoke_cache, mono_aligned_addr_hash, NULL);
12011 if ((res = mono_marshal_find_in_cache (cache, method)))
12014 sig = mono_method_signature (method);
12015 mb = mono_mb_new (klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
12017 /* add "this" and exception param */
12018 param_count = sig->param_count + sig->hasthis + 1;
12020 /* dup & extend signature */
12021 csig = mono_metadata_signature_alloc (image, param_count);
12022 sig_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
12023 memcpy (csig, sig, sig_size);
12024 csig->param_count = param_count;
12027 csig->call_convention = MONO_CALL_DEFAULT;
12029 if (sig->hasthis) {
12031 csig->params [0] = &klass->byval_arg;
12032 /* move params up by one */
12033 for (i = 0; i < sig->param_count; i++)
12034 csig->params [i + 1] = sig->params [i];
12037 /* setup exception param as byref+[out] */
12038 csig->params [param_count - 1] = mono_metadata_type_dup (image,
12039 &mono_defaults.exception_class->byval_arg);
12040 csig->params [param_count - 1]->byref = 1;
12041 csig->params [param_count - 1]->attrs = PARAM_ATTRIBUTE_OUT;
12043 /* convert struct return to object */
12044 if (MONO_TYPE_ISSTRUCT (sig->ret))
12045 csig->ret = &mono_defaults.object_class->byval_arg;
12047 #ifndef DISABLE_JIT
12048 /* local 0 (temp for exception object) */
12049 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
12051 /* local 1 (temp for result) */
12052 if (!MONO_TYPE_IS_VOID (sig->ret))
12053 mono_mb_add_local (mb, sig->ret);
12055 /* clear exception arg */
12056 mono_mb_emit_ldarg (mb, param_count - 1);
12057 mono_mb_emit_byte (mb, CEE_LDNULL);
12058 mono_mb_emit_byte (mb, CEE_STIND_REF);
12061 clause = (MonoExceptionClause *)mono_image_alloc0 (image, sizeof (MonoExceptionClause));
12062 clause->try_offset = mono_mb_get_label (mb);
12064 /* push method's args */
12065 for (i = 0; i < param_count - 1; i++) {
12069 mono_mb_emit_ldarg (mb, i);
12071 /* get the byval type of the param */
12072 klass = mono_class_from_mono_type (csig->params [i]);
12073 type = &klass->byval_arg;
12075 /* unbox struct args */
12076 if (MONO_TYPE_ISSTRUCT (type)) {
12077 mono_mb_emit_op (mb, CEE_UNBOX, klass);
12079 /* byref args & and the "this" arg must remain a ptr.
12080 Otherwise make a copy of the value type */
12081 if (!(csig->params [i]->byref || (i == 0 && sig->hasthis)))
12082 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
12084 csig->params [i] = &mono_defaults.object_class->byval_arg;
12089 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
12090 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
12092 mono_mb_emit_op (mb, CEE_CALL, method);
12094 /* save result at local 1 */
12095 if (!MONO_TYPE_IS_VOID (sig->ret))
12096 mono_mb_emit_stloc (mb, 1);
12098 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
12101 clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
12102 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
12103 clause->data.catch_class = mono_defaults.object_class;
12105 clause->handler_offset = mono_mb_get_label (mb);
12107 /* store exception at local 0 */
12108 mono_mb_emit_stloc (mb, 0);
12109 mono_mb_emit_ldarg (mb, param_count - 1);
12110 mono_mb_emit_ldloc (mb, 0);
12111 mono_mb_emit_byte (mb, CEE_STIND_REF);
12112 mono_mb_emit_branch (mb, CEE_LEAVE);
12114 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
12116 mono_mb_set_clauses (mb, 1, clause);
12118 mono_mb_patch_branch (mb, pos_leave);
12121 if (!MONO_TYPE_IS_VOID (sig->ret)) {
12122 mono_mb_emit_ldloc (mb, 1);
12124 /* box the return value */
12125 if (MONO_TYPE_ISSTRUCT (sig->ret))
12126 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
12129 mono_mb_emit_byte (mb, CEE_RET);
12132 res = mono_mb_create_and_cache (cache, method, mb, csig, param_count + 16);
12139 * mono_marshal_free_dynamic_wrappers:
12141 * Free wrappers of the dynamic method METHOD.
12144 mono_marshal_free_dynamic_wrappers (MonoMethod *method)
12146 MonoImage *image = method->klass->image;
12148 g_assert (method_is_dynamic (method));
12150 /* This could be called during shutdown */
12151 if (marshal_mutex_initialized)
12152 mono_marshal_lock ();
12154 * FIXME: We currently leak the wrappers. Freeing them would be tricky as
12155 * they could be shared with other methods ?
12157 if (image->wrapper_caches.runtime_invoke_direct_cache)
12158 g_hash_table_remove (image->wrapper_caches.runtime_invoke_direct_cache, method);
12159 if (image->wrapper_caches.delegate_abstract_invoke_cache)
12160 g_hash_table_foreach_remove (image->wrapper_caches.delegate_abstract_invoke_cache, signature_pointer_pair_matches_pointer, method);
12161 // FIXME: Need to clear the caches in other images as well
12162 if (image->delegate_bound_static_invoke_cache)
12163 g_hash_table_remove (image->delegate_bound_static_invoke_cache, mono_method_signature (method));
12165 if (marshal_mutex_initialized)
12166 mono_marshal_unlock ();
12170 mono_marshal_ftnptr_eh_callback (guint32 gchandle)
12172 g_assert (ftnptr_eh_callback);
12173 ftnptr_eh_callback (gchandle);
12177 ftnptr_eh_callback_default (guint32 gchandle)
12179 MonoException *exc;
12180 gpointer stackdata;
12182 mono_threads_enter_gc_unsafe_region_unbalanced (&stackdata);
12184 exc = (MonoException*) mono_gchandle_get_target (gchandle);
12186 mono_gchandle_free (gchandle);
12188 mono_raise_exception (exc);
12192 * mono_install_ftnptr_eh_callback:
12194 * Install a callback that should be called when there is a managed exception
12195 * in a native-to-managed wrapper. This is mainly used by iOS to convert a
12196 * managed exception to a native exception, to properly unwind the native
12197 * stack; this native exception will then be converted back to a managed
12198 * exception in their managed-to-native wrapper.
12201 mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback)
12203 ftnptr_eh_callback = callback;
12206 static MonoThreadInfo*
12207 mono_icall_start (HandleStackMark *stackmark, MonoError *error)
12209 MonoThreadInfo *info = mono_thread_info_current ();
12211 mono_stack_mark_init (info, stackmark);
12212 error_init (error);
12217 mono_icall_end (MonoThreadInfo *info, HandleStackMark *stackmark, MonoError *error)
12219 mono_stack_mark_pop (info, stackmark);
12220 if (G_UNLIKELY (!is_ok (error)))
12221 mono_error_set_pending_exception (error);