2 * object.c: Object creation for the Mono runtime
5 * Miguel de Icaza (miguel@ximian.com)
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
19 #include <mono/metadata/mono-endian.h>
20 #include <mono/metadata/tabledefs.h>
21 #include <mono/metadata/tokentype.h>
22 #include <mono/metadata/loader.h>
23 #include <mono/metadata/object.h>
24 #include <mono/metadata/gc-internal.h>
25 #include <mono/metadata/exception.h>
26 #include <mono/metadata/domain-internals.h>
27 #include "mono/metadata/metadata-internals.h"
28 #include "mono/metadata/class-internals.h"
29 #include <mono/metadata/assembly.h>
30 #include <mono/metadata/threadpool.h>
31 #include <mono/metadata/marshal.h>
32 #include "mono/metadata/debug-helpers.h"
33 #include "mono/metadata/marshal.h"
34 #include <mono/metadata/threads.h>
35 #include <mono/metadata/threads-types.h>
36 #include <mono/metadata/environment.h>
37 #include "mono/metadata/profiler-private.h"
38 #include "mono/metadata/security-manager.h"
39 #include "mono/metadata/mono-debug-debugger.h"
40 #include <mono/metadata/gc-internal.h>
41 #include <mono/metadata/verify-internals.h>
42 #include <mono/utils/strenc.h>
43 #include <mono/utils/mono-counters.h>
44 #include <mono/utils/mono-error-internals.h>
45 #include "cominterop.h"
48 #define NEED_TO_ZERO_PTRFREE 1
49 #define ALLOC_PTRFREE(obj,vt,size) do { (obj) = GC_MALLOC_ATOMIC ((size)); (obj)->vtable = (vt); (obj)->synchronisation = NULL;} while (0)
50 #define ALLOC_OBJECT(obj,vt,size) do { (obj) = GC_MALLOC ((size)); (obj)->vtable = (vt);} while (0)
51 #ifdef HAVE_GC_GCJ_MALLOC
52 #define GC_NO_DESCRIPTOR ((gpointer)(0 | GC_DS_LENGTH))
53 #define ALLOC_TYPED(dest,size,type) do { (dest) = GC_GCJ_MALLOC ((size),(type)); } while (0)
55 #define GC_NO_DESCRIPTOR (NULL)
56 #define ALLOC_TYPED(dest,size,type) do { (dest) = GC_MALLOC ((size)); *(gpointer*)dest = (type);} while (0)
60 #define GC_NO_DESCRIPTOR (NULL)
61 #define ALLOC_PTRFREE(obj,vt,size) do { (obj) = mono_gc_alloc_obj (vt, size);} while (0)
62 #define ALLOC_OBJECT(obj,vt,size) do { (obj) = mono_gc_alloc_obj (vt, size);} while (0)
63 #define ALLOC_TYPED(dest,size,type) do { (dest) = mono_gc_alloc_obj (type, size);} while (0)
65 #define NEED_TO_ZERO_PTRFREE 1
66 #define GC_NO_DESCRIPTOR (NULL)
67 #define ALLOC_PTRFREE(obj,vt,size) do { (obj) = malloc ((size)); (obj)->vtable = (vt); (obj)->synchronisation = NULL;} while (0)
68 #define ALLOC_OBJECT(obj,vt,size) do { (obj) = calloc (1, (size)); (obj)->vtable = (vt);} while (0)
69 #define ALLOC_TYPED(dest,size,type) do { (dest) = calloc (1, (size)); *(gpointer*)dest = (type);} while (0)
73 static MonoObject* mono_object_new_ptrfree (MonoVTable *vtable);
74 static MonoObject* mono_object_new_ptrfree_box (MonoVTable *vtable);
77 get_default_field_value (MonoDomain* domain, MonoClassField *field, void *value);
80 mono_ldstr_metadata_sig (MonoDomain *domain, const char* sig);
82 #define ldstr_lock() EnterCriticalSection (&ldstr_section)
83 #define ldstr_unlock() LeaveCriticalSection (&ldstr_section)
84 static CRITICAL_SECTION ldstr_section;
86 static gboolean profile_allocs = TRUE;
89 mono_runtime_object_init (MonoObject *this)
91 MonoMethod *method = NULL;
92 MonoClass *klass = this->vtable->klass;
94 method = mono_class_get_method_from_name (klass, ".ctor", 0);
97 if (method->klass->valuetype)
98 this = mono_object_unbox (this);
99 mono_runtime_invoke (method, this, NULL, NULL);
102 /* The pseudo algorithm for type initialization from the spec
103 Note it doesn't say anything about domains - only threads.
105 2. If the type is initialized you are done.
106 2.1. If the type is not yet initialized, try to take an
108 2.2. If successful, record this thread as responsible for
109 initializing the type and proceed to step 2.3.
110 2.2.1. If not, see whether this thread or any thread
111 waiting for this thread to complete already holds the lock.
112 2.2.2. If so, return since blocking would create a deadlock. This thread
113 will now see an incompletely initialized state for the type,
114 but no deadlock will arise.
115 2.2.3 If not, block until the type is initialized then return.
116 2.3 Initialize the parent type and then all interfaces implemented
118 2.4 Execute the type initialization code for this type.
119 2.5 Mark the type as initialized, release the initialization lock,
120 awaken any threads waiting for this type to be initialized,
127 guint32 initializing_tid;
128 guint32 waiting_count;
130 CRITICAL_SECTION initialization_section;
131 } TypeInitializationLock;
133 /* for locking access to type_initialization_hash and blocked_thread_hash */
134 #define mono_type_initialization_lock() EnterCriticalSection (&type_initialization_section)
135 #define mono_type_initialization_unlock() LeaveCriticalSection (&type_initialization_section)
136 static CRITICAL_SECTION type_initialization_section;
138 /* from vtable to lock */
139 static GHashTable *type_initialization_hash;
141 /* from thread id to thread id being waited on */
142 static GHashTable *blocked_thread_hash;
145 static MonoThread *main_thread;
147 /* Functions supplied by the runtime */
148 static MonoRuntimeCallbacks callbacks;
151 * mono_thread_set_main:
152 * @thread: thread to set as the main thread
154 * This function can be used to instruct the runtime to treat @thread
155 * as the main thread, ie, the thread that would normally execute the Main()
156 * method. This basically means that at the end of @thread, the runtime will
157 * wait for the existing foreground threads to quit and other such details.
160 mono_thread_set_main (MonoThread *thread)
162 main_thread = thread;
166 mono_thread_get_main (void)
172 mono_type_initialization_init (void)
174 InitializeCriticalSection (&type_initialization_section);
175 type_initialization_hash = g_hash_table_new (NULL, NULL);
176 blocked_thread_hash = g_hash_table_new (NULL, NULL);
177 InitializeCriticalSection (&ldstr_section);
181 mono_type_initialization_cleanup (void)
184 /* This is causing race conditions with
185 * mono_release_type_locks
187 DeleteCriticalSection (&type_initialization_section);
189 DeleteCriticalSection (&ldstr_section);
193 * get_type_init_exception_for_vtable:
195 * Return the stored type initialization exception for VTABLE.
197 static MonoException*
198 get_type_init_exception_for_vtable (MonoVTable *vtable)
200 MonoDomain *domain = vtable->domain;
201 MonoClass *klass = vtable->klass;
205 g_assert (vtable->init_failed);
208 * If the initializing thread was rudely aborted, the exception is not stored
212 mono_domain_lock (domain);
213 if (domain->type_init_exception_hash)
214 ex = mono_g_hash_table_lookup (domain->type_init_exception_hash, klass);
215 mono_domain_unlock (domain);
218 if (klass->name_space && *klass->name_space)
219 full_name = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
221 full_name = g_strdup (klass->name);
222 ex = mono_get_exception_type_initialization (full_name, NULL);
229 * mono_runtime_class_init:
230 * @vtable: vtable that needs to be initialized
232 * This routine calls the class constructor for @vtable.
235 mono_runtime_class_init (MonoVTable *vtable)
237 mono_runtime_class_init_full (vtable, TRUE);
241 * mono_runtime_class_init_full:
242 * @vtable that neeeds to be initialized
243 * @raise_exception is TRUE, exceptions are raised intead of returned
247 mono_runtime_class_init_full (MonoVTable *vtable, gboolean raise_exception)
250 MonoException *exc_to_throw;
251 MonoMethod *method = NULL;
257 if (vtable->initialized)
261 klass = vtable->klass;
263 if (!klass->image->checked_module_cctor) {
264 mono_image_check_for_module_cctor (klass->image);
265 if (klass->image->has_module_cctor) {
266 MonoClass *module_klass = mono_class_get (klass->image, MONO_TOKEN_TYPE_DEF | 1);
267 MonoVTable *module_vtable = mono_class_vtable_full (vtable->domain, module_klass, raise_exception);
270 mono_runtime_class_init (module_vtable);
273 method = mono_class_get_cctor (klass);
276 MonoDomain *domain = vtable->domain;
277 TypeInitializationLock *lock;
278 guint32 tid = GetCurrentThreadId();
279 int do_initialization = 0;
280 MonoDomain *last_domain = NULL;
282 mono_type_initialization_lock ();
283 /* double check... */
284 if (vtable->initialized) {
285 mono_type_initialization_unlock ();
288 if (vtable->init_failed) {
289 mono_type_initialization_unlock ();
291 /* The type initialization already failed once, rethrow the same exception */
293 mono_raise_exception (get_type_init_exception_for_vtable (vtable));
294 return get_type_init_exception_for_vtable (vtable);
296 lock = g_hash_table_lookup (type_initialization_hash, vtable);
298 /* This thread will get to do the initialization */
299 if (mono_domain_get () != domain) {
300 /* Transfer into the target domain */
301 last_domain = mono_domain_get ();
302 if (!mono_domain_set (domain, FALSE)) {
303 vtable->initialized = 1;
304 mono_type_initialization_unlock ();
306 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
307 return mono_get_exception_appdomain_unloaded ();
310 lock = g_malloc (sizeof(TypeInitializationLock));
311 InitializeCriticalSection (&lock->initialization_section);
312 lock->initializing_tid = tid;
313 lock->waiting_count = 1;
315 /* grab the vtable lock while this thread still owns type_initialization_section */
316 EnterCriticalSection (&lock->initialization_section);
317 g_hash_table_insert (type_initialization_hash, vtable, lock);
318 do_initialization = 1;
321 TypeInitializationLock *pending_lock;
323 if (lock->initializing_tid == tid || lock->done) {
324 mono_type_initialization_unlock ();
327 /* see if the thread doing the initialization is already blocked on this thread */
328 blocked = GUINT_TO_POINTER (lock->initializing_tid);
329 while ((pending_lock = (TypeInitializationLock*) g_hash_table_lookup (blocked_thread_hash, blocked))) {
330 if (pending_lock->initializing_tid == tid) {
331 if (!pending_lock->done) {
332 mono_type_initialization_unlock ();
335 /* the thread doing the initialization is blocked on this thread,
336 but on a lock that has already been freed. It just hasn't got
341 blocked = GUINT_TO_POINTER (pending_lock->initializing_tid);
343 ++lock->waiting_count;
344 /* record the fact that we are waiting on the initializing thread */
345 g_hash_table_insert (blocked_thread_hash, GUINT_TO_POINTER (tid), lock);
347 mono_type_initialization_unlock ();
349 if (do_initialization) {
350 mono_runtime_invoke (method, NULL, NULL, (MonoObject **) &exc);
352 /* If the initialization failed, mark the class as unusable. */
353 /* Avoid infinite loops */
355 (klass->image == mono_defaults.corlib &&
356 !strcmp (klass->name_space, "System") &&
357 !strcmp (klass->name, "TypeInitializationException")))) {
358 vtable->init_failed = 1;
360 if (klass->name_space && *klass->name_space)
361 full_name = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
363 full_name = g_strdup (klass->name);
364 exc_to_throw = mono_get_exception_type_initialization (full_name, exc);
368 * Store the exception object so it could be thrown on subsequent
371 mono_domain_lock (domain);
372 if (!domain->type_init_exception_hash)
373 domain->type_init_exception_hash = mono_g_hash_table_new_type (mono_aligned_addr_hash, NULL, MONO_HASH_VALUE_GC);
374 mono_g_hash_table_insert (domain->type_init_exception_hash, klass, exc_to_throw);
375 mono_domain_unlock (domain);
379 mono_domain_set (last_domain, TRUE);
381 LeaveCriticalSection (&lock->initialization_section);
383 /* this just blocks until the initializing thread is done */
384 EnterCriticalSection (&lock->initialization_section);
385 LeaveCriticalSection (&lock->initialization_section);
388 mono_type_initialization_lock ();
389 if (lock->initializing_tid != tid)
390 g_hash_table_remove (blocked_thread_hash, GUINT_TO_POINTER (tid));
391 --lock->waiting_count;
392 if (lock->waiting_count == 0) {
393 DeleteCriticalSection (&lock->initialization_section);
394 g_hash_table_remove (type_initialization_hash, vtable);
397 if (!vtable->init_failed)
398 vtable->initialized = 1;
399 mono_type_initialization_unlock ();
401 if (vtable->init_failed) {
402 /* Either we were the initializing thread or we waited for the initialization */
404 mono_raise_exception (get_type_init_exception_for_vtable (vtable));
405 return get_type_init_exception_for_vtable (vtable);
408 vtable->initialized = 1;
415 gboolean release_type_locks (gpointer key, gpointer value, gpointer user)
417 MonoVTable *vtable = (MonoVTable*)key;
419 TypeInitializationLock *lock = (TypeInitializationLock*) value;
420 if (lock->initializing_tid == GPOINTER_TO_UINT (user) && !lock->done) {
423 * Have to set this since it cannot be set by the normal code in
424 * mono_runtime_class_init (). In this case, the exception object is not stored,
425 * and get_type_init_exception_for_class () needs to be aware of this.
427 vtable->init_failed = 1;
428 LeaveCriticalSection (&lock->initialization_section);
429 --lock->waiting_count;
430 if (lock->waiting_count == 0) {
431 DeleteCriticalSection (&lock->initialization_section);
440 mono_release_type_locks (MonoInternalThread *thread)
442 mono_type_initialization_lock ();
443 g_hash_table_foreach_remove (type_initialization_hash, release_type_locks, (gpointer)(gsize)(thread->tid));
444 mono_type_initialization_unlock ();
448 default_trampoline (MonoMethod *method)
454 default_jump_trampoline (MonoDomain *domain, MonoMethod *method, gboolean add_sync_wrapper)
456 g_assert_not_reached ();
462 default_remoting_trampoline (MonoDomain *domain, MonoMethod *method, MonoRemotingTarget target)
464 g_error ("remoting not installed");
469 default_delegate_trampoline (MonoClass *klass)
471 g_assert_not_reached ();
475 static MonoTrampoline arch_create_jit_trampoline = default_trampoline;
476 static MonoJumpTrampoline arch_create_jump_trampoline = default_jump_trampoline;
477 static MonoRemotingTrampoline arch_create_remoting_trampoline = default_remoting_trampoline;
478 static MonoDelegateTrampoline arch_create_delegate_trampoline = default_delegate_trampoline;
479 static MonoImtThunkBuilder imt_thunk_builder = NULL;
480 #define ARCH_USE_IMT (imt_thunk_builder != NULL)
481 #if (MONO_IMT_SIZE > 32)
482 #error "MONO_IMT_SIZE cannot be larger than 32"
486 mono_install_callbacks (MonoRuntimeCallbacks *cbs)
488 memcpy (&callbacks, cbs, sizeof (*cbs));
491 MonoRuntimeCallbacks*
492 mono_get_runtime_callbacks (void)
498 mono_install_trampoline (MonoTrampoline func)
500 arch_create_jit_trampoline = func? func: default_trampoline;
504 mono_install_jump_trampoline (MonoJumpTrampoline func)
506 arch_create_jump_trampoline = func? func: default_jump_trampoline;
510 mono_install_remoting_trampoline (MonoRemotingTrampoline func)
512 arch_create_remoting_trampoline = func? func: default_remoting_trampoline;
516 mono_install_delegate_trampoline (MonoDelegateTrampoline func)
518 arch_create_delegate_trampoline = func? func: default_delegate_trampoline;
522 mono_install_imt_thunk_builder (MonoImtThunkBuilder func) {
523 imt_thunk_builder = func;
526 static MonoCompileFunc default_mono_compile_method = NULL;
529 * mono_install_compile_method:
530 * @func: function to install
532 * This is a VM internal routine
535 mono_install_compile_method (MonoCompileFunc func)
537 default_mono_compile_method = func;
541 * mono_compile_method:
542 * @method: The method to compile.
544 * This JIT-compiles the method, and returns the pointer to the native code
548 mono_compile_method (MonoMethod *method)
550 if (!default_mono_compile_method) {
551 g_error ("compile method called on uninitialized runtime");
554 return default_mono_compile_method (method);
558 mono_runtime_create_jump_trampoline (MonoDomain *domain, MonoMethod *method, gboolean add_sync_wrapper)
560 return arch_create_jump_trampoline (domain, method, add_sync_wrapper);
564 mono_runtime_create_delegate_trampoline (MonoClass *klass)
566 return arch_create_delegate_trampoline (klass);
569 static MonoFreeMethodFunc default_mono_free_method = NULL;
572 * mono_install_free_method:
573 * @func: pointer to the MonoFreeMethodFunc used to release a method
575 * This is an internal VM routine, it is used for the engines to
576 * register a handler to release the resources associated with a method.
578 * Methods are freed when no more references to the delegate that holds
582 mono_install_free_method (MonoFreeMethodFunc func)
584 default_mono_free_method = func;
588 * mono_runtime_free_method:
589 * @domain; domain where the method is hosted
590 * @method: method to release
592 * This routine is invoked to free the resources associated with
593 * a method that has been JIT compiled. This is used to discard
594 * methods that were used only temporarily (for example, used in marshalling)
598 mono_runtime_free_method (MonoDomain *domain, MonoMethod *method)
600 if (default_mono_free_method != NULL)
601 default_mono_free_method (domain, method);
603 mono_method_clear_object (domain, method);
605 mono_free_method (method);
609 * The vtables in the root appdomain are assumed to be reachable by other
610 * roots, and we don't use typed allocation in the other domains.
613 /* The sync block is no longer a GC pointer */
614 #define GC_HEADER_BITMAP (0)
616 #define BITMAP_EL_SIZE (sizeof (gsize) * 8)
619 compute_class_bitmap (MonoClass *class, gsize *bitmap, int size, int offset, int *max_set, gboolean static_fields)
621 MonoClassField *field;
627 max_size = mono_class_data_size (class) / sizeof (gpointer);
629 max_size = class->instance_size / sizeof (gpointer);
630 if (max_size > size) {
631 g_assert (offset <= 0);
632 bitmap = g_malloc0 ((max_size + BITMAP_EL_SIZE - 1) / BITMAP_EL_SIZE * sizeof (gsize));
637 /*An Ephemeron cannot be marked by sgen*/
638 if (!static_fields && class->image == mono_defaults.corlib && !strcmp ("Ephemeron", class->name)) {
640 memset (bitmap, 0, size / 8);
645 for (p = class; p != NULL; p = p->parent) {
646 gpointer iter = NULL;
647 while ((field = mono_class_get_fields (p, &iter))) {
651 if (!(field->type->attrs & (FIELD_ATTRIBUTE_STATIC | FIELD_ATTRIBUTE_HAS_FIELD_RVA)))
653 if (field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
656 if (field->type->attrs & (FIELD_ATTRIBUTE_STATIC | FIELD_ATTRIBUTE_HAS_FIELD_RVA))
659 /* FIXME: should not happen, flag as type load error */
660 if (field->type->byref)
663 if (static_fields && field->offset == -1)
667 pos = field->offset / sizeof (gpointer);
670 type = mono_type_get_underlying_type (field->type);
671 switch (type->type) {
674 case MONO_TYPE_FNPTR:
676 /* only UIntPtr is allowed to be GC-tracked and only in mscorlib */
681 if (class->image != mono_defaults.corlib)
684 case MONO_TYPE_STRING:
685 case MONO_TYPE_SZARRAY:
686 case MONO_TYPE_CLASS:
687 case MONO_TYPE_OBJECT:
688 case MONO_TYPE_ARRAY:
689 g_assert ((field->offset % sizeof(gpointer)) == 0);
691 g_assert (pos < size || pos <= max_size);
692 bitmap [pos / BITMAP_EL_SIZE] |= ((gsize)1) << (pos % BITMAP_EL_SIZE);
693 *max_set = MAX (*max_set, pos);
695 case MONO_TYPE_GENERICINST:
696 if (!mono_type_generic_inst_is_valuetype (type)) {
697 g_assert ((field->offset % sizeof(gpointer)) == 0);
699 bitmap [pos / BITMAP_EL_SIZE] |= ((gsize)1) << (pos % BITMAP_EL_SIZE);
700 *max_set = MAX (*max_set, pos);
705 case MONO_TYPE_VALUETYPE: {
706 MonoClass *fclass = mono_class_from_mono_type (field->type);
707 if (fclass->has_references) {
708 /* remove the object header */
709 compute_class_bitmap (fclass, bitmap, size, pos - (sizeof (MonoObject) / sizeof (gpointer)), max_set, FALSE);
723 case MONO_TYPE_BOOLEAN:
727 g_error ("compute_class_bitmap: Invalid type %x for field %s:%s\n", type->type, mono_type_get_full_name (field->parent), field->name);
739 * similar to the above, but sets the bits in the bitmap for any non-ref field
740 * and ignores static fields
743 compute_class_non_ref_bitmap (MonoClass *class, gsize *bitmap, int size, int offset)
745 MonoClassField *field;
750 max_size = class->instance_size / sizeof (gpointer);
751 if (max_size >= size) {
752 bitmap = g_malloc0 (sizeof (gsize) * ((max_size) + 1));
755 for (p = class; p != NULL; p = p->parent) {
756 gpointer iter = NULL;
757 while ((field = mono_class_get_fields (p, &iter))) {
760 if (field->type->attrs & (FIELD_ATTRIBUTE_STATIC | FIELD_ATTRIBUTE_HAS_FIELD_RVA))
762 /* FIXME: should not happen, flag as type load error */
763 if (field->type->byref)
766 pos = field->offset / sizeof (gpointer);
769 type = mono_type_get_underlying_type (field->type);
770 switch (type->type) {
771 #if SIZEOF_VOID_P == 8
775 case MONO_TYPE_FNPTR:
780 if ((((field->offset + 7) / sizeof (gpointer)) + offset) != pos) {
781 pos2 = ((field->offset + 7) / sizeof (gpointer)) + offset;
782 bitmap [pos2 / BITMAP_EL_SIZE] |= ((gsize)1) << (pos2 % BITMAP_EL_SIZE);
785 #if SIZEOF_VOID_P == 4
789 case MONO_TYPE_FNPTR:
794 if ((((field->offset + 3) / sizeof (gpointer)) + offset) != pos) {
795 pos2 = ((field->offset + 3) / sizeof (gpointer)) + offset;
796 bitmap [pos2 / BITMAP_EL_SIZE] |= ((gsize)1) << (pos2 % BITMAP_EL_SIZE);
802 if ((((field->offset + 1) / sizeof (gpointer)) + offset) != pos) {
803 pos2 = ((field->offset + 1) / sizeof (gpointer)) + offset;
804 bitmap [pos2 / BITMAP_EL_SIZE] |= ((gsize)1) << (pos2 % BITMAP_EL_SIZE);
807 case MONO_TYPE_BOOLEAN:
810 bitmap [pos / BITMAP_EL_SIZE] |= ((gsize)1) << (pos % BITMAP_EL_SIZE);
812 case MONO_TYPE_STRING:
813 case MONO_TYPE_SZARRAY:
814 case MONO_TYPE_CLASS:
815 case MONO_TYPE_OBJECT:
816 case MONO_TYPE_ARRAY:
818 case MONO_TYPE_GENERICINST:
819 if (!mono_type_generic_inst_is_valuetype (type)) {
824 case MONO_TYPE_VALUETYPE: {
825 MonoClass *fclass = mono_class_from_mono_type (field->type);
826 /* remove the object header */
827 compute_class_non_ref_bitmap (fclass, bitmap, size, pos - (sizeof (MonoObject) / sizeof (gpointer)));
831 g_assert_not_reached ();
840 * mono_class_insecure_overlapping:
841 * check if a class with explicit layout has references and non-references
842 * fields overlapping.
844 * Returns: TRUE if it is insecure to load the type.
847 mono_class_insecure_overlapping (MonoClass *klass)
851 gsize default_bitmap [4] = {0};
853 gsize default_nrbitmap [4] = {0};
854 int i, insecure = FALSE;
857 bitmap = compute_class_bitmap (klass, default_bitmap, sizeof (default_bitmap) * 8, 0, &max_set, FALSE);
858 nrbitmap = compute_class_non_ref_bitmap (klass, default_nrbitmap, sizeof (default_nrbitmap) * 8, 0);
860 for (i = 0; i <= max_set; i += sizeof (bitmap [0]) * 8) {
861 int idx = i % (sizeof (bitmap [0]) * 8);
862 if (bitmap [idx] & nrbitmap [idx]) {
867 if (bitmap != default_bitmap)
869 if (nrbitmap != default_nrbitmap)
872 g_print ("class %s.%s in assembly %s has overlapping references\n", klass->name_space, klass->name, klass->image->name);
880 mono_string_alloc (int length)
882 return mono_string_new_size (mono_domain_get (), length);
886 mono_class_compute_gc_descriptor (MonoClass *class)
890 gsize default_bitmap [4] = {0};
891 static gboolean gcj_inited = FALSE;
896 mono_register_jit_icall (mono_object_new_ptrfree, "mono_object_new_ptrfree", mono_create_icall_signature ("object ptr"), FALSE);
897 mono_register_jit_icall (mono_object_new_ptrfree_box, "mono_object_new_ptrfree_box", mono_create_icall_signature ("object ptr"), FALSE);
898 mono_register_jit_icall (mono_object_new_fast, "mono_object_new_fast", mono_create_icall_signature ("object ptr"), FALSE);
899 mono_register_jit_icall (mono_string_alloc, "mono_string_alloc", mono_create_icall_signature ("object int"), FALSE);
901 #ifdef HAVE_GC_GCJ_MALLOC
903 * This is not needed unless the relevant code in mono_get_allocation_ftn () is
907 #ifdef GC_REDIRECT_TO_LOCAL
908 mono_register_jit_icall (GC_local_gcj_malloc, "GC_local_gcj_malloc", mono_create_icall_signature ("object int ptr"), FALSE);
909 mono_register_jit_icall (GC_local_gcj_fast_malloc, "GC_local_gcj_fast_malloc", mono_create_icall_signature ("object int ptr"), FALSE);
911 mono_register_jit_icall (GC_gcj_malloc, "GC_gcj_malloc", mono_create_icall_signature ("object int ptr"), FALSE);
912 mono_register_jit_icall (GC_gcj_fast_malloc, "GC_gcj_fast_malloc", mono_create_icall_signature ("object int ptr"), FALSE);
917 mono_loader_unlock ();
921 mono_class_init (class);
923 if (class->gc_descr_inited)
926 class->gc_descr_inited = TRUE;
927 class->gc_descr = GC_NO_DESCRIPTOR;
929 bitmap = default_bitmap;
930 if (class == mono_defaults.string_class) {
931 class->gc_descr = (gpointer)mono_gc_make_descr_for_string (bitmap, 2);
932 } else if (class->rank) {
933 mono_class_compute_gc_descriptor (class->element_class);
934 if (!class->element_class->valuetype) {
936 class->gc_descr = mono_gc_make_descr_for_array (TRUE, &abm, 1, sizeof (gpointer));
937 /*printf ("new array descriptor: 0x%x for %s.%s\n", class->gc_descr,
938 class->name_space, class->name);*/
940 /* remove the object header */
941 bitmap = compute_class_bitmap (class->element_class, default_bitmap, sizeof (default_bitmap) * 8, - (int)(sizeof (MonoObject) / sizeof (gpointer)), &max_set, FALSE);
942 class->gc_descr = mono_gc_make_descr_for_array (TRUE, bitmap, mono_array_element_size (class) / sizeof (gpointer), mono_array_element_size (class));
943 /*printf ("new vt array descriptor: 0x%x for %s.%s\n", class->gc_descr,
944 class->name_space, class->name);*/
945 if (bitmap != default_bitmap)
949 /*static int count = 0;
952 bitmap = compute_class_bitmap (class, default_bitmap, sizeof (default_bitmap) * 8, 0, &max_set, FALSE);
953 class->gc_descr = (gpointer)mono_gc_make_descr_for_object (bitmap, max_set + 1, class->instance_size);
955 if (class->gc_descr == GC_NO_DESCRIPTOR)
956 g_print ("disabling typed alloc (%d) for %s.%s\n", max_set, class->name_space, class->name);
958 /*printf ("new descriptor: %p 0x%x for %s.%s\n", class->gc_descr, bitmap [0], class->name_space, class->name);*/
959 if (bitmap != default_bitmap)
965 * field_is_special_static:
966 * @fklass: The MonoClass to look up.
967 * @field: The MonoClassField describing the field.
969 * Returns: SPECIAL_STATIC_THREAD if the field is thread static, SPECIAL_STATIC_CONTEXT if it is context static,
970 * SPECIAL_STATIC_NONE otherwise.
973 field_is_special_static (MonoClass *fklass, MonoClassField *field)
975 MonoCustomAttrInfo *ainfo;
977 ainfo = mono_custom_attrs_from_field (fklass, field);
980 for (i = 0; i < ainfo->num_attrs; ++i) {
981 MonoClass *klass = ainfo->attrs [i].ctor->klass;
982 if (klass->image == mono_defaults.corlib) {
983 if (strcmp (klass->name, "ThreadStaticAttribute") == 0) {
984 mono_custom_attrs_free (ainfo);
985 return SPECIAL_STATIC_THREAD;
987 else if (strcmp (klass->name, "ContextStaticAttribute") == 0) {
988 mono_custom_attrs_free (ainfo);
989 return SPECIAL_STATIC_CONTEXT;
993 mono_custom_attrs_free (ainfo);
994 return SPECIAL_STATIC_NONE;
997 static gpointer imt_trampoline = NULL;
1000 mono_install_imt_trampoline (gpointer tramp_code)
1002 imt_trampoline = tramp_code;
1005 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
1006 #define mix(a,b,c) { \
1007 a -= c; a ^= rot(c, 4); c += b; \
1008 b -= a; b ^= rot(a, 6); a += c; \
1009 c -= b; c ^= rot(b, 8); b += a; \
1010 a -= c; a ^= rot(c,16); c += b; \
1011 b -= a; b ^= rot(a,19); a += c; \
1012 c -= b; c ^= rot(b, 4); b += a; \
1014 #define final(a,b,c) { \
1015 c ^= b; c -= rot(b,14); \
1016 a ^= c; a -= rot(c,11); \
1017 b ^= a; b -= rot(a,25); \
1018 c ^= b; c -= rot(b,16); \
1019 a ^= c; a -= rot(c,4); \
1020 b ^= a; b -= rot(a,14); \
1021 c ^= b; c -= rot(b,24); \
1025 * mono_method_get_imt_slot:
1027 * The IMT slot is embedded into AOTed code, so this must return the same value
1028 * for the same method across all executions. This means:
1029 * - pointers shouldn't be used as hash values.
1030 * - mono_metadata_str_hash () should be used for hashing strings.
1033 mono_method_get_imt_slot (MonoMethod *method)
1035 MonoMethodSignature *sig;
1037 guint32 *hashes_start, *hashes;
1041 /* This can be used to stress tests the collision code */
1045 * We do this to simplify generic sharing. It will hurt
1046 * performance in cases where a class implements two different
1047 * instantiations of the same generic interface.
1048 * The code in build_imt_slots () depends on this.
1050 if (method->is_inflated)
1051 method = ((MonoMethodInflated*)method)->declaring;
1053 sig = mono_method_signature (method);
1054 hashes_count = sig->param_count + 4;
1055 hashes_start = malloc (hashes_count * sizeof (guint32));
1056 hashes = hashes_start;
1058 if (! MONO_CLASS_IS_INTERFACE (method->klass)) {
1059 printf ("mono_method_get_imt_slot: %s.%s.%s is not an interface MonoMethod\n",
1060 method->klass->name_space, method->klass->name, method->name);
1061 g_assert_not_reached ();
1064 /* Initialize hashes */
1065 hashes [0] = mono_metadata_str_hash (method->klass->name);
1066 hashes [1] = mono_metadata_str_hash (method->klass->name_space);
1067 hashes [2] = mono_metadata_str_hash (method->name);
1068 hashes [3] = mono_metadata_type_hash (sig->ret);
1069 for (i = 0; i < sig->param_count; i++) {
1070 hashes [4 + i] = mono_metadata_type_hash (sig->params [i]);
1073 /* Setup internal state */
1074 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
1076 /* Handle most of the hashes */
1077 while (hashes_count > 3) {
1086 /* Handle the last 3 hashes (all the case statements fall through) */
1087 switch (hashes_count) {
1088 case 3 : c += hashes [2];
1089 case 2 : b += hashes [1];
1090 case 1 : a += hashes [0];
1092 case 0: /* nothing left to add */
1096 free (hashes_start);
1097 /* Report the result */
1098 return c % MONO_IMT_SIZE;
1107 add_imt_builder_entry (MonoImtBuilderEntry **imt_builder, MonoMethod *method, guint32 *imt_collisions_bitmap, int vtable_slot, int slot_num) {
1108 guint32 imt_slot = mono_method_get_imt_slot (method);
1109 MonoImtBuilderEntry *entry;
1111 if (slot_num >= 0 && imt_slot != slot_num) {
1112 /* we build just a single imt slot and this is not it */
1116 entry = g_malloc0 (sizeof (MonoImtBuilderEntry));
1117 entry->key = method;
1118 entry->value.vtable_slot = vtable_slot;
1119 entry->next = imt_builder [imt_slot];
1120 if (imt_builder [imt_slot] != NULL) {
1121 entry->children = imt_builder [imt_slot]->children + 1;
1122 if (entry->children == 1) {
1123 mono_stats.imt_slots_with_collisions++;
1124 *imt_collisions_bitmap |= (1 << imt_slot);
1127 entry->children = 0;
1128 mono_stats.imt_used_slots++;
1130 imt_builder [imt_slot] = entry;
1133 char *method_name = mono_method_full_name (method, TRUE);
1134 printf ("Added IMT slot for method (%p) %s: imt_slot = %d, vtable_slot = %d, colliding with other %d entries\n",
1135 method, method_name, imt_slot, vtable_slot, entry->children);
1136 g_free (method_name);
1143 print_imt_entry (const char* message, MonoImtBuilderEntry *e, int num) {
1145 MonoMethod *method = e->key;
1146 printf (" * %s [%d]: (%p) '%s.%s.%s'\n",
1150 method->klass->name_space,
1151 method->klass->name,
1154 printf (" * %s: NULL\n", message);
1160 compare_imt_builder_entries (const void *p1, const void *p2) {
1161 MonoImtBuilderEntry *e1 = *(MonoImtBuilderEntry**) p1;
1162 MonoImtBuilderEntry *e2 = *(MonoImtBuilderEntry**) p2;
1164 return (e1->key < e2->key) ? -1 : ((e1->key > e2->key) ? 1 : 0);
1168 imt_emit_ir (MonoImtBuilderEntry **sorted_array, int start, int end, GPtrArray *out_array)
1170 int count = end - start;
1171 int chunk_start = out_array->len;
1174 for (i = start; i < end; ++i) {
1175 MonoIMTCheckItem *item = g_new0 (MonoIMTCheckItem, 1);
1176 item->key = sorted_array [i]->key;
1177 item->value = sorted_array [i]->value;
1178 item->has_target_code = sorted_array [i]->has_target_code;
1179 item->is_equals = TRUE;
1181 item->check_target_idx = out_array->len + 1;
1183 item->check_target_idx = 0;
1184 g_ptr_array_add (out_array, item);
1187 int middle = start + count / 2;
1188 MonoIMTCheckItem *item = g_new0 (MonoIMTCheckItem, 1);
1190 item->key = sorted_array [middle]->key;
1191 item->is_equals = FALSE;
1192 g_ptr_array_add (out_array, item);
1193 imt_emit_ir (sorted_array, start, middle, out_array);
1194 item->check_target_idx = imt_emit_ir (sorted_array, middle, end, out_array);
1200 imt_sort_slot_entries (MonoImtBuilderEntry *entries) {
1201 int number_of_entries = entries->children + 1;
1202 MonoImtBuilderEntry **sorted_array = malloc (sizeof (MonoImtBuilderEntry*) * number_of_entries);
1203 GPtrArray *result = g_ptr_array_new ();
1204 MonoImtBuilderEntry *current_entry;
1207 for (current_entry = entries, i = 0; current_entry != NULL; current_entry = current_entry->next, i++) {
1208 sorted_array [i] = current_entry;
1210 qsort (sorted_array, number_of_entries, sizeof (MonoImtBuilderEntry*), compare_imt_builder_entries);
1212 /*for (i = 0; i < number_of_entries; i++) {
1213 print_imt_entry (" sorted array:", sorted_array [i], i);
1216 imt_emit_ir (sorted_array, 0, number_of_entries, result);
1218 free (sorted_array);
1223 initialize_imt_slot (MonoVTable *vtable, MonoDomain *domain, MonoImtBuilderEntry *imt_builder_entry, gpointer fail_tramp)
1225 if (imt_builder_entry != NULL) {
1226 if (imt_builder_entry->children == 0 && !fail_tramp) {
1227 /* No collision, return the vtable slot contents */
1228 return vtable->vtable [imt_builder_entry->value.vtable_slot];
1230 /* Collision, build the thunk */
1231 GPtrArray *imt_ir = imt_sort_slot_entries (imt_builder_entry);
1234 result = imt_thunk_builder (vtable, domain,
1235 (MonoIMTCheckItem**)imt_ir->pdata, imt_ir->len, fail_tramp);
1236 for (i = 0; i < imt_ir->len; ++i)
1237 g_free (g_ptr_array_index (imt_ir, i));
1238 g_ptr_array_free (imt_ir, TRUE);
1250 static MonoImtBuilderEntry*
1251 get_generic_virtual_entries (MonoDomain *domain, gpointer *vtable_slot);
1254 * LOCKING: requires the loader and domain locks.
1258 build_imt_slots (MonoClass *klass, MonoVTable *vt, MonoDomain *domain, gpointer* imt, GSList *extra_interfaces, int slot_num)
1262 guint32 imt_collisions_bitmap = 0;
1263 MonoImtBuilderEntry **imt_builder = calloc (MONO_IMT_SIZE, sizeof (MonoImtBuilderEntry*));
1264 int method_count = 0;
1265 gboolean record_method_count_for_max_collisions = FALSE;
1266 gboolean has_generic_virtual = FALSE, has_variant_iface = FALSE;
1269 printf ("Building IMT for class %s.%s slot %d\n", klass->name_space, klass->name, slot_num);
1271 for (i = 0; i < klass->interface_offsets_count; ++i) {
1272 MonoClass *iface = klass->interfaces_packed [i];
1273 int interface_offset = klass->interface_offsets_packed [i];
1274 int method_slot_in_interface, vt_slot;
1276 if (mono_class_has_variant_generic_params (iface))
1277 has_variant_iface = TRUE;
1279 vt_slot = interface_offset;
1280 for (method_slot_in_interface = 0; method_slot_in_interface < iface->method.count; method_slot_in_interface++) {
1283 if (slot_num >= 0 && iface->is_inflated) {
1285 * The imt slot of the method is the same as for its declaring method,
1286 * see the comment in mono_method_get_imt_slot (), so we can
1287 * avoid inflating methods which will be discarded by
1288 * add_imt_builder_entry anyway.
1290 method = mono_class_get_method_by_index (iface->generic_class->container_class, method_slot_in_interface);
1291 if (mono_method_get_imt_slot (method) != slot_num) {
1296 method = mono_class_get_method_by_index (iface, method_slot_in_interface);
1297 if (method->is_generic) {
1298 has_generic_virtual = TRUE;
1303 if (!(method->flags & METHOD_ATTRIBUTE_STATIC)) {
1304 add_imt_builder_entry (imt_builder, method, &imt_collisions_bitmap, vt_slot, slot_num);
1309 if (extra_interfaces) {
1310 int interface_offset = klass->vtable_size;
1312 for (list_item = extra_interfaces; list_item != NULL; list_item=list_item->next) {
1313 MonoClass* iface = list_item->data;
1314 int method_slot_in_interface;
1315 for (method_slot_in_interface = 0; method_slot_in_interface < iface->method.count; method_slot_in_interface++) {
1316 MonoMethod *method = mono_class_get_method_by_index (iface, method_slot_in_interface);
1317 add_imt_builder_entry (imt_builder, method, &imt_collisions_bitmap, interface_offset + method_slot_in_interface, slot_num);
1319 interface_offset += iface->method.count;
1322 for (i = 0; i < MONO_IMT_SIZE; ++i) {
1323 /* overwrite the imt slot only if we're building all the entries or if
1324 * we're building this specific one
1326 if (slot_num < 0 || i == slot_num) {
1327 MonoImtBuilderEntry *entries = get_generic_virtual_entries (domain, &imt [i]);
1330 if (imt_builder [i]) {
1331 MonoImtBuilderEntry *entry;
1333 /* Link entries with imt_builder [i] */
1334 for (entry = entries; entry->next; entry = entry->next) {
1336 MonoMethod *method = (MonoMethod*)entry->key;
1337 char *method_name = mono_method_full_name (method, TRUE);
1338 printf ("Added extra entry for method (%p) %s: imt_slot = %d\n", method, method_name, i);
1339 g_free (method_name);
1342 entry->next = imt_builder [i];
1343 entries->children += imt_builder [i]->children + 1;
1345 imt_builder [i] = entries;
1348 if (has_generic_virtual || has_variant_iface) {
1350 * There might be collisions later when the the thunk is expanded.
1352 imt_collisions_bitmap |= (1 << i);
1355 * The IMT thunk might be called with an instance of one of the
1356 * generic virtual methods, so has to fallback to the IMT trampoline.
1358 imt [i] = initialize_imt_slot (vt, domain, imt_builder [i], imt_trampoline);
1360 imt [i] = initialize_imt_slot (vt, domain, imt_builder [i], NULL);
1363 printf ("initialize_imt_slot[%d]: %p methods %d\n", i, imt [i], imt_builder [i]->children + 1);
1367 if (imt_builder [i] != NULL) {
1368 int methods_in_slot = imt_builder [i]->children + 1;
1369 if (methods_in_slot > mono_stats.imt_max_collisions_in_slot) {
1370 mono_stats.imt_max_collisions_in_slot = methods_in_slot;
1371 record_method_count_for_max_collisions = TRUE;
1373 method_count += methods_in_slot;
1377 mono_stats.imt_number_of_methods += method_count;
1378 if (record_method_count_for_max_collisions) {
1379 mono_stats.imt_method_count_when_max_collisions = method_count;
1382 for (i = 0; i < MONO_IMT_SIZE; i++) {
1383 MonoImtBuilderEntry* entry = imt_builder [i];
1384 while (entry != NULL) {
1385 MonoImtBuilderEntry* next = entry->next;
1391 /* we OR the bitmap since we may build just a single imt slot at a time */
1392 vt->imt_collisions_bitmap |= imt_collisions_bitmap;
1396 build_imt (MonoClass *klass, MonoVTable *vt, MonoDomain *domain, gpointer* imt, GSList *extra_interfaces) {
1397 build_imt_slots (klass, vt, domain, imt, extra_interfaces, -1);
1401 * mono_vtable_build_imt_slot:
1402 * @vtable: virtual object table struct
1403 * @imt_slot: slot in the IMT table
1405 * Fill the given @imt_slot in the IMT table of @vtable with
1406 * a trampoline or a thunk for the case of collisions.
1407 * This is part of the internal mono API.
1409 * LOCKING: Take the domain lock.
1412 mono_vtable_build_imt_slot (MonoVTable* vtable, int imt_slot)
1414 gpointer *imt = (gpointer*)vtable;
1415 imt -= MONO_IMT_SIZE;
1416 g_assert (imt_slot >= 0 && imt_slot < MONO_IMT_SIZE);
1418 /* no support for extra interfaces: the proxy objects will need
1419 * to build the complete IMT
1420 * Update and heck needs to ahppen inside the proper domain lock, as all
1421 * the changes made to a MonoVTable.
1423 mono_loader_lock (); /*FIXME build_imt_slots requires the loader lock.*/
1424 mono_domain_lock (vtable->domain);
1425 /* we change the slot only if it wasn't changed from the generic imt trampoline already */
1426 if (imt [imt_slot] == imt_trampoline)
1427 build_imt_slots (vtable->klass, vtable, vtable->domain, imt, NULL, imt_slot);
1428 mono_domain_unlock (vtable->domain);
1429 mono_loader_unlock ();
1434 * The first two free list entries both belong to the wait list: The
1435 * first entry is the pointer to the head of the list and the second
1436 * entry points to the last element. That way appending and removing
1437 * the first element are both O(1) operations.
1439 #ifdef MONO_SMALL_CONFIG
1440 #define NUM_FREE_LISTS 6
1442 #define NUM_FREE_LISTS 12
1444 #define FIRST_FREE_LIST_SIZE 64
1445 #define MAX_WAIT_LENGTH 50
1446 #define THUNK_THRESHOLD 10
1449 * LOCKING: The domain lock must be held.
1452 init_thunk_free_lists (MonoDomain *domain)
1454 if (domain->thunk_free_lists)
1456 domain->thunk_free_lists = mono_domain_alloc0 (domain, sizeof (gpointer) * NUM_FREE_LISTS);
1460 list_index_for_size (int item_size)
1463 int size = FIRST_FREE_LIST_SIZE;
1465 while (item_size > size && i < NUM_FREE_LISTS - 1) {
1474 * mono_method_alloc_generic_virtual_thunk:
1476 * @size: size in bytes
1478 * Allocs size bytes to be used for the code of a generic virtual
1479 * thunk. It's either allocated from the domain's code manager or
1480 * reused from a previously invalidated piece.
1482 * LOCKING: The domain lock must be held.
1485 mono_method_alloc_generic_virtual_thunk (MonoDomain *domain, int size)
1487 static gboolean inited = FALSE;
1488 static int generic_virtual_thunks_size = 0;
1492 MonoThunkFreeList **l;
1494 init_thunk_free_lists (domain);
1496 size += sizeof (guint32);
1497 if (size < sizeof (MonoThunkFreeList))
1498 size = sizeof (MonoThunkFreeList);
1500 i = list_index_for_size (size);
1501 for (l = &domain->thunk_free_lists [i]; *l; l = &(*l)->next) {
1502 if ((*l)->size >= size) {
1503 MonoThunkFreeList *item = *l;
1505 return ((guint32*)item) + 1;
1509 /* no suitable item found - search lists of larger sizes */
1510 while (++i < NUM_FREE_LISTS) {
1511 MonoThunkFreeList *item = domain->thunk_free_lists [i];
1514 g_assert (item->size > size);
1515 domain->thunk_free_lists [i] = item->next;
1516 return ((guint32*)item) + 1;
1519 /* still nothing found - allocate it */
1521 mono_counters_register ("Generic virtual thunk bytes",
1522 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &generic_virtual_thunks_size);
1525 generic_virtual_thunks_size += size;
1527 p = mono_domain_code_reserve (domain, size);
1534 * LOCKING: The domain lock must be held.
1537 invalidate_generic_virtual_thunk (MonoDomain *domain, gpointer code)
1540 MonoThunkFreeList *l = (MonoThunkFreeList*)(p - 1);
1542 init_thunk_free_lists (domain);
1544 while (domain->thunk_free_lists [0] && domain->thunk_free_lists [0]->length >= MAX_WAIT_LENGTH) {
1545 MonoThunkFreeList *item = domain->thunk_free_lists [0];
1546 int length = item->length;
1549 /* unlink the first item from the wait list */
1550 domain->thunk_free_lists [0] = item->next;
1551 domain->thunk_free_lists [0]->length = length - 1;
1553 i = list_index_for_size (item->size);
1555 /* put it in the free list */
1556 item->next = domain->thunk_free_lists [i];
1557 domain->thunk_free_lists [i] = item;
1561 if (domain->thunk_free_lists [1]) {
1562 domain->thunk_free_lists [1] = domain->thunk_free_lists [1]->next = l;
1563 domain->thunk_free_lists [0]->length++;
1565 g_assert (!domain->thunk_free_lists [0]);
1567 domain->thunk_free_lists [0] = domain->thunk_free_lists [1] = l;
1568 domain->thunk_free_lists [0]->length = 1;
1572 typedef struct _GenericVirtualCase {
1576 struct _GenericVirtualCase *next;
1577 } GenericVirtualCase;
1580 * get_generic_virtual_entries:
1582 * Return IMT entries for the generic virtual method instances and
1583 * variant interface methods for vtable slot
1586 static MonoImtBuilderEntry*
1587 get_generic_virtual_entries (MonoDomain *domain, gpointer *vtable_slot)
1589 GenericVirtualCase *list;
1590 MonoImtBuilderEntry *entries;
1592 mono_domain_lock (domain);
1593 if (!domain->generic_virtual_cases)
1594 domain->generic_virtual_cases = g_hash_table_new (mono_aligned_addr_hash, NULL);
1596 list = g_hash_table_lookup (domain->generic_virtual_cases, vtable_slot);
1599 for (; list; list = list->next) {
1600 MonoImtBuilderEntry *entry;
1602 if (list->count < THUNK_THRESHOLD)
1605 entry = g_new0 (MonoImtBuilderEntry, 1);
1606 entry->key = list->method;
1607 entry->value.target_code = mono_get_addr_from_ftnptr (list->code);
1608 entry->has_target_code = 1;
1610 entry->children = entries->children + 1;
1611 entry->next = entries;
1615 mono_domain_unlock (domain);
1617 /* FIXME: Leaking memory ? */
1622 * mono_method_add_generic_virtual_invocation:
1624 * @vtable_slot: pointer to the vtable slot
1625 * @method: the inflated generic virtual method
1626 * @code: the method's code
1628 * Registers a call via unmanaged code to a generic virtual method
1629 * instantiation or variant interface method. If the number of calls reaches a threshold
1630 * (THUNK_THRESHOLD), the method is added to the vtable slot's generic
1631 * virtual method thunk.
1634 mono_method_add_generic_virtual_invocation (MonoDomain *domain, MonoVTable *vtable,
1635 gpointer *vtable_slot,
1636 MonoMethod *method, gpointer code)
1638 static gboolean inited = FALSE;
1639 static int num_added = 0;
1641 GenericVirtualCase *gvc, *list;
1642 MonoImtBuilderEntry *entries;
1646 mono_domain_lock (domain);
1647 if (!domain->generic_virtual_cases)
1648 domain->generic_virtual_cases = g_hash_table_new (mono_aligned_addr_hash, NULL);
1650 /* Check whether the case was already added */
1651 list = g_hash_table_lookup (domain->generic_virtual_cases, vtable_slot);
1654 if (gvc->method == method)
1659 /* If not found, make a new one */
1661 gvc = mono_domain_alloc (domain, sizeof (GenericVirtualCase));
1662 gvc->method = method;
1665 gvc->next = g_hash_table_lookup (domain->generic_virtual_cases, vtable_slot);
1667 g_hash_table_insert (domain->generic_virtual_cases, vtable_slot, gvc);
1670 mono_counters_register ("Generic virtual cases", MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_added);
1676 if (++gvc->count == THUNK_THRESHOLD) {
1677 gpointer *old_thunk = *vtable_slot;
1678 gpointer vtable_trampoline = callbacks.get_vtable_trampoline ? callbacks.get_vtable_trampoline ((gpointer*)vtable_slot - (gpointer*)vtable) : NULL;
1680 if ((gpointer)vtable_slot < (gpointer)vtable)
1681 /* Force the rebuild of the thunk at the next call */
1682 *vtable_slot = imt_trampoline;
1684 entries = get_generic_virtual_entries (domain, vtable_slot);
1686 sorted = imt_sort_slot_entries (entries);
1688 *vtable_slot = imt_thunk_builder (NULL, domain, (MonoIMTCheckItem**)sorted->pdata, sorted->len,
1692 MonoImtBuilderEntry *next = entries->next;
1697 for (i = 0; i < sorted->len; ++i)
1698 g_free (g_ptr_array_index (sorted, i));
1699 g_ptr_array_free (sorted, TRUE);
1702 if (old_thunk != vtable_trampoline && old_thunk != imt_trampoline)
1703 invalidate_generic_virtual_thunk (domain, old_thunk);
1706 mono_domain_unlock (domain);
1709 static MonoVTable *mono_class_create_runtime_vtable (MonoDomain *domain, MonoClass *class, gboolean raise_on_error);
1712 * mono_class_vtable:
1713 * @domain: the application domain
1714 * @class: the class to initialize
1716 * VTables are domain specific because we create domain specific code, and
1717 * they contain the domain specific static class data.
1718 * On failure, NULL is returned, and class->exception_type is set.
1721 mono_class_vtable (MonoDomain *domain, MonoClass *class)
1723 return mono_class_vtable_full (domain, class, FALSE);
1727 * mono_class_vtable_full:
1728 * @domain: the application domain
1729 * @class: the class to initialize
1730 * @raise_on_error if an exception should be raised on failure or not
1732 * VTables are domain specific because we create domain specific code, and
1733 * they contain the domain specific static class data.
1736 mono_class_vtable_full (MonoDomain *domain, MonoClass *class, gboolean raise_on_error)
1738 MonoClassRuntimeInfo *runtime_info;
1742 if (class->exception_type) {
1744 mono_raise_exception (mono_class_get_exception_for_failure (class));
1748 /* this check can be inlined in jitted code, too */
1749 runtime_info = class->runtime_info;
1750 if (runtime_info && runtime_info->max_domain >= domain->domain_id && runtime_info->domain_vtables [domain->domain_id])
1751 return runtime_info->domain_vtables [domain->domain_id];
1752 return mono_class_create_runtime_vtable (domain, class, raise_on_error);
1756 * mono_class_try_get_vtable:
1757 * @domain: the application domain
1758 * @class: the class to initialize
1760 * This function tries to get the associated vtable from @class if
1761 * it was already created.
1764 mono_class_try_get_vtable (MonoDomain *domain, MonoClass *class)
1766 MonoClassRuntimeInfo *runtime_info;
1770 runtime_info = class->runtime_info;
1771 if (runtime_info && runtime_info->max_domain >= domain->domain_id && runtime_info->domain_vtables [domain->domain_id])
1772 return runtime_info->domain_vtables [domain->domain_id];
1777 mono_class_create_runtime_vtable (MonoDomain *domain, MonoClass *class, gboolean raise_on_error)
1780 MonoClassRuntimeInfo *runtime_info, *old_info;
1781 MonoClassField *field;
1784 int imt_table_bytes = 0;
1785 guint32 vtable_size, class_size;
1788 gpointer *interface_offsets;
1790 mono_loader_lock (); /*FIXME mono_class_init acquires it*/
1791 mono_domain_lock (domain);
1792 runtime_info = class->runtime_info;
1793 if (runtime_info && runtime_info->max_domain >= domain->domain_id && runtime_info->domain_vtables [domain->domain_id]) {
1794 mono_domain_unlock (domain);
1795 mono_loader_unlock ();
1796 return runtime_info->domain_vtables [domain->domain_id];
1798 if (!class->inited || class->exception_type) {
1799 if (!mono_class_init (class) || class->exception_type) {
1800 mono_domain_unlock (domain);
1801 mono_loader_unlock ();
1803 mono_raise_exception (mono_class_get_exception_for_failure (class));
1808 /* Array types require that their element type be valid*/
1809 if (class->byval_arg.type == MONO_TYPE_ARRAY || class->byval_arg.type == MONO_TYPE_SZARRAY) {
1810 MonoClass *element_class = class->element_class;
1811 if (!element_class->inited)
1812 mono_class_init (element_class);
1814 /*mono_class_init can leave the vtable layout to be lazily done and we can't afford this here*/
1815 if (element_class->exception_type == MONO_EXCEPTION_NONE && !element_class->vtable_size)
1816 mono_class_setup_vtable (element_class);
1818 if (element_class->exception_type != MONO_EXCEPTION_NONE) {
1819 /*Can happen if element_class only got bad after mono_class_setup_vtable*/
1820 if (class->exception_type == MONO_EXCEPTION_NONE)
1821 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1822 mono_domain_unlock (domain);
1823 mono_loader_unlock ();
1825 mono_raise_exception (mono_class_get_exception_for_failure (class));
1831 * For some classes, mono_class_init () already computed class->vtable_size, and
1832 * that is all that is needed because of the vtable trampolines.
1834 if (!class->vtable_size)
1835 mono_class_setup_vtable (class);
1837 if (class->exception_type) {
1838 mono_domain_unlock (domain);
1839 mono_loader_unlock ();
1841 mono_raise_exception (mono_class_get_exception_for_failure (class));
1846 vtable_size = MONO_SIZEOF_VTABLE + class->vtable_size * sizeof (gpointer);
1847 if (class->interface_offsets_count) {
1848 imt_table_bytes = sizeof (gpointer) * (MONO_IMT_SIZE);
1849 vtable_size += sizeof (gpointer) * (MONO_IMT_SIZE);
1850 mono_stats.imt_number_of_tables++;
1851 mono_stats.imt_tables_size += (sizeof (gpointer) * MONO_IMT_SIZE);
1854 vtable_size = sizeof (gpointer) * (class->max_interface_id + 1) +
1855 MONO_SIZEOF_VTABLE + class->vtable_size * sizeof (gpointer);
1858 mono_stats.used_class_count++;
1859 mono_stats.class_vtable_size += vtable_size;
1860 interface_offsets = mono_domain_alloc0 (domain, vtable_size);
1863 vt = (MonoVTable*) ((char*)interface_offsets + imt_table_bytes);
1865 vt = (MonoVTable*) (interface_offsets + class->max_interface_id + 1);
1867 vt->rank = class->rank;
1868 vt->domain = domain;
1870 mono_class_compute_gc_descriptor (class);
1872 * We can't use typed allocation in the non-root domains, since the
1873 * collector needs the GC descriptor stored in the vtable even after
1874 * the mempool containing the vtable is destroyed when the domain is
1875 * unloaded. An alternative might be to allocate vtables in the GC
1876 * heap, but this does not seem to work (it leads to crashes inside
1877 * libgc). If that approach is tried, two gc descriptors need to be
1878 * allocated for each class: one for the root domain, and one for all
1879 * other domains. The second descriptor should contain a bit for the
1880 * vtable field in MonoObject, since we can no longer assume the
1881 * vtable is reachable by other roots after the appdomain is unloaded.
1883 #ifdef HAVE_BOEHM_GC
1884 if (domain != mono_get_root_domain () && !mono_dont_free_domains)
1885 vt->gc_descr = GC_NO_DESCRIPTOR;
1888 vt->gc_descr = class->gc_descr;
1890 if ((class_size = mono_class_data_size (class))) {
1891 if (class->has_static_refs) {
1892 gpointer statics_gc_descr;
1894 gsize default_bitmap [4] = {0};
1897 bitmap = compute_class_bitmap (class, default_bitmap, sizeof (default_bitmap) * 8, 0, &max_set, TRUE);
1898 /*g_print ("bitmap 0x%x for %s.%s (size: %d)\n", bitmap [0], class->name_space, class->name, class_size);*/
1899 statics_gc_descr = mono_gc_make_descr_from_bitmap (bitmap, max_set + 1);
1900 vt->data = mono_gc_alloc_fixed (class_size, statics_gc_descr);
1901 mono_domain_add_class_static_data (domain, class, vt->data, NULL);
1902 if (bitmap != default_bitmap)
1905 vt->data = mono_domain_alloc0 (domain, class_size);
1907 mono_stats.class_static_data_size += class_size;
1912 while ((field = mono_class_get_fields (class, &iter))) {
1913 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1915 if (mono_field_is_deleted (field))
1917 if (!(field->type->attrs & FIELD_ATTRIBUTE_LITERAL)) {
1918 gint32 special_static = class->no_special_static_fields ? SPECIAL_STATIC_NONE : field_is_special_static (class, field);
1919 if (special_static != SPECIAL_STATIC_NONE) {
1920 guint32 size, offset;
1922 gsize default_bitmap [4] = {0};
1926 if (mono_type_is_reference (field->type)) {
1927 default_bitmap [0] = 1;
1929 bitmap = default_bitmap;
1930 } else if (mono_type_is_struct (field->type)) {
1931 fclass = mono_class_from_mono_type (field->type);
1932 bitmap = compute_class_bitmap (fclass, default_bitmap, sizeof (default_bitmap) * 8, 0, &max_set, FALSE);
1934 default_bitmap [0] = 0;
1936 bitmap = default_bitmap;
1938 size = mono_type_size (field->type, &align);
1939 offset = mono_alloc_special_static_data (special_static, size, align, bitmap, max_set);
1940 if (!domain->special_static_fields)
1941 domain->special_static_fields = g_hash_table_new (NULL, NULL);
1942 g_hash_table_insert (domain->special_static_fields, field, GUINT_TO_POINTER (offset));
1943 if (bitmap != default_bitmap)
1946 * This marks the field as special static to speed up the
1947 * checks in mono_field_static_get/set_value ().
1953 if ((field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA)) {
1954 MonoClass *fklass = mono_class_from_mono_type (field->type);
1955 const char *data = mono_field_get_data (field);
1957 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT));
1958 t = (char*)vt->data + field->offset;
1959 /* some fields don't really have rva, they are just zeroed (bss? bug #343083) */
1962 if (fklass->valuetype) {
1963 memcpy (t, data, mono_class_value_size (fklass, NULL));
1965 /* it's a pointer type: add check */
1966 g_assert ((fklass->byval_arg.type == MONO_TYPE_PTR) || (fklass->byval_arg.type == MONO_TYPE_FNPTR));
1973 vt->max_interface_id = class->max_interface_id;
1974 vt->interface_bitmap = class->interface_bitmap;
1976 //printf ("Initializing VT for class %s (interface_offsets_count = %d)\n",
1977 // class->name, class->interface_offsets_count);
1979 if (! ARCH_USE_IMT) {
1980 /* initialize interface offsets */
1981 for (i = 0; i < class->interface_offsets_count; ++i) {
1982 int interface_id = class->interfaces_packed [i]->interface_id;
1983 int slot = class->interface_offsets_packed [i];
1984 interface_offsets [class->max_interface_id - interface_id] = &(vt->vtable [slot]);
1988 /* class_vtable_array keeps an array of created vtables
1990 g_ptr_array_add (domain->class_vtable_array, vt);
1991 /* class->runtime_info is protected by the loader lock, both when
1992 * it it enlarged and when it is stored info.
1995 old_info = class->runtime_info;
1996 if (old_info && old_info->max_domain >= domain->domain_id) {
1997 /* someone already created a large enough runtime info */
1998 mono_memory_barrier ();
1999 old_info->domain_vtables [domain->domain_id] = vt;
2001 int new_size = domain->domain_id;
2003 new_size = MAX (new_size, old_info->max_domain);
2005 /* make the new size a power of two */
2007 while (new_size > i)
2010 /* this is a bounded memory retention issue: may want to
2011 * handle it differently when we'll have a rcu-like system.
2013 runtime_info = mono_image_alloc0 (class->image, MONO_SIZEOF_CLASS_RUNTIME_INFO + new_size * sizeof (gpointer));
2014 runtime_info->max_domain = new_size - 1;
2015 /* copy the stuff from the older info */
2017 memcpy (runtime_info->domain_vtables, old_info->domain_vtables, (old_info->max_domain + 1) * sizeof (gpointer));
2019 runtime_info->domain_vtables [domain->domain_id] = vt;
2021 mono_memory_barrier ();
2022 class->runtime_info = runtime_info;
2025 /* Initialize vtable */
2026 if (callbacks.get_vtable_trampoline) {
2027 // This also covers the AOT case
2028 for (i = 0; i < class->vtable_size; ++i) {
2029 vt->vtable [i] = callbacks.get_vtable_trampoline (i);
2032 mono_class_setup_vtable (class);
2034 for (i = 0; i < class->vtable_size; ++i) {
2037 if ((cm = class->vtable [i]))
2038 vt->vtable [i] = arch_create_jit_trampoline (cm);
2042 if (ARCH_USE_IMT && imt_table_bytes) {
2043 /* Now that the vtable is full, we can actually fill up the IMT */
2044 if (imt_trampoline) {
2045 /* lazy construction of the IMT entries enabled */
2046 for (i = 0; i < MONO_IMT_SIZE; ++i)
2047 interface_offsets [i] = imt_trampoline;
2049 build_imt (class, vt, domain, interface_offsets, NULL);
2053 mono_domain_unlock (domain);
2054 mono_loader_unlock ();
2056 /* Initialization is now complete, we can throw if the InheritanceDemand aren't satisfied */
2057 if (mono_is_security_manager_active () && (class->exception_type == MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND) && raise_on_error)
2058 mono_raise_exception (mono_class_get_exception_for_failure (class));
2060 /* make sure the parent is initialized */
2061 /*FIXME shouldn't this fail the current type?*/
2063 mono_class_vtable_full (domain, class->parent, raise_on_error);
2065 /*FIXME check for OOM*/
2066 vt->type = mono_type_get_object (domain, &class->byval_arg);
2068 if (mono_object_get_class (vt->type) != mono_defaults.monotype_class) {
2069 static void *type_desc = NULL;
2073 type_desc = mono_gc_make_descr_from_bitmap (&bmap, 1);
2076 /* This is unregistered in
2077 unregister_vtable_reflection_type() in
2079 mono_gc_register_root ((char*)&vt->type, sizeof (gpointer), type_desc);
2082 if (class->contextbound)
2091 * mono_class_proxy_vtable:
2092 * @domain: the application domain
2093 * @remove_class: the remote class
2095 * Creates a vtable for transparent proxies. It is basically
2096 * a copy of the real vtable of the class wrapped in @remote_class,
2097 * but all function pointers invoke the remoting functions, and
2098 * vtable->klass points to the transparent proxy class, and not to @class.
2101 mono_class_proxy_vtable (MonoDomain *domain, MonoRemoteClass *remote_class, MonoRemotingTarget target_type)
2104 MonoVTable *vt, *pvt;
2105 int i, j, vtsize, max_interface_id, extra_interface_vtsize = 0;
2107 GSList *extra_interfaces = NULL;
2108 MonoClass *class = remote_class->proxy_class;
2109 gpointer *interface_offsets;
2113 #ifdef COMPRESSED_INTERFACE_BITMAP
2117 vt = mono_class_vtable (domain, class);
2118 g_assert (vt); /*FIXME property handle failure*/
2119 max_interface_id = vt->max_interface_id;
2121 /* Calculate vtable space for extra interfaces */
2122 for (j = 0; j < remote_class->interface_count; j++) {
2123 MonoClass* iclass = remote_class->interfaces[j];
2127 /*FIXME test for interfaces with variant generic arguments*/
2128 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, iclass->interface_id))
2129 continue; /* interface implemented by the class */
2130 if (g_slist_find (extra_interfaces, iclass))
2133 extra_interfaces = g_slist_prepend (extra_interfaces, iclass);
2135 method_count = mono_class_num_methods (iclass);
2137 ifaces = mono_class_get_implemented_interfaces (iclass, &error);
2138 g_assert (mono_error_ok (&error)); /*FIXME do proper error handling*/
2140 for (i = 0; i < ifaces->len; ++i) {
2141 MonoClass *ic = g_ptr_array_index (ifaces, i);
2142 /*FIXME test for interfaces with variant generic arguments*/
2143 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, ic->interface_id))
2144 continue; /* interface implemented by the class */
2145 if (g_slist_find (extra_interfaces, ic))
2147 extra_interfaces = g_slist_prepend (extra_interfaces, ic);
2148 method_count += mono_class_num_methods (ic);
2150 g_ptr_array_free (ifaces, TRUE);
2153 extra_interface_vtsize += method_count * sizeof (gpointer);
2154 if (iclass->max_interface_id > max_interface_id) max_interface_id = iclass->max_interface_id;
2158 mono_stats.imt_number_of_tables++;
2159 mono_stats.imt_tables_size += (sizeof (gpointer) * MONO_IMT_SIZE);
2160 vtsize = sizeof (gpointer) * (MONO_IMT_SIZE) +
2161 MONO_SIZEOF_VTABLE + class->vtable_size * sizeof (gpointer);
2163 vtsize = sizeof (gpointer) * (max_interface_id + 1) +
2164 MONO_SIZEOF_VTABLE + class->vtable_size * sizeof (gpointer);
2167 mono_stats.class_vtable_size += vtsize + extra_interface_vtsize;
2169 interface_offsets = mono_domain_alloc0 (domain, vtsize + extra_interface_vtsize);
2171 pvt = (MonoVTable*) (interface_offsets + MONO_IMT_SIZE);
2173 pvt = (MonoVTable*) (interface_offsets + max_interface_id + 1);
2174 memcpy (pvt, vt, MONO_SIZEOF_VTABLE + class->vtable_size * sizeof (gpointer));
2176 pvt->klass = mono_defaults.transparent_proxy_class;
2177 /* we need to keep the GC descriptor for a transparent proxy or we confuse the precise GC */
2178 pvt->gc_descr = mono_defaults.transparent_proxy_class->gc_descr;
2180 /* initialize vtable */
2181 mono_class_setup_vtable (class);
2182 for (i = 0; i < class->vtable_size; ++i) {
2185 if ((cm = class->vtable [i]))
2186 pvt->vtable [i] = arch_create_remoting_trampoline (domain, cm, target_type);
2188 pvt->vtable [i] = NULL;
2191 if (class->flags & TYPE_ATTRIBUTE_ABSTRACT) {
2192 /* create trampolines for abstract methods */
2193 for (k = class; k; k = k->parent) {
2195 gpointer iter = NULL;
2196 while ((m = mono_class_get_methods (k, &iter)))
2197 if (!pvt->vtable [m->slot])
2198 pvt->vtable [m->slot] = arch_create_remoting_trampoline (domain, m, target_type);
2202 pvt->max_interface_id = max_interface_id;
2203 bsize = sizeof (guint8) * (max_interface_id/8 + 1 );
2204 #ifdef COMPRESSED_INTERFACE_BITMAP
2205 bitmap = g_malloc0 (bsize);
2207 bitmap = mono_domain_alloc0 (domain, bsize);
2210 if (! ARCH_USE_IMT) {
2211 /* initialize interface offsets */
2212 for (i = 0; i < class->interface_offsets_count; ++i) {
2213 int interface_id = class->interfaces_packed [i]->interface_id;
2214 int slot = class->interface_offsets_packed [i];
2215 interface_offsets [class->max_interface_id - interface_id] = &(pvt->vtable [slot]);
2218 for (i = 0; i < class->interface_offsets_count; ++i) {
2219 int interface_id = class->interfaces_packed [i]->interface_id;
2220 bitmap [interface_id >> 3] |= (1 << (interface_id & 7));
2223 if (extra_interfaces) {
2224 int slot = class->vtable_size;
2230 /* Create trampolines for the methods of the interfaces */
2231 for (list_item = extra_interfaces; list_item != NULL; list_item=list_item->next) {
2232 interf = list_item->data;
2234 if (! ARCH_USE_IMT) {
2235 interface_offsets [max_interface_id - interf->interface_id] = &pvt->vtable [slot];
2237 bitmap [interf->interface_id >> 3] |= (1 << (interf->interface_id & 7));
2241 while ((cm = mono_class_get_methods (interf, &iter)))
2242 pvt->vtable [slot + j++] = arch_create_remoting_trampoline (domain, cm, target_type);
2244 slot += mono_class_num_methods (interf);
2246 if (! ARCH_USE_IMT) {
2247 g_slist_free (extra_interfaces);
2252 /* Now that the vtable is full, we can actually fill up the IMT */
2253 build_imt (class, pvt, domain, interface_offsets, extra_interfaces);
2254 if (extra_interfaces) {
2255 g_slist_free (extra_interfaces);
2259 #ifdef COMPRESSED_INTERFACE_BITMAP
2260 bcsize = mono_compress_bitmap (NULL, bitmap, bsize);
2261 pvt->interface_bitmap = mono_domain_alloc0 (domain, bcsize);
2262 mono_compress_bitmap (pvt->interface_bitmap, bitmap, bsize);
2265 pvt->interface_bitmap = bitmap;
2271 * mono_class_field_is_special_static:
2273 * Returns whether @field is a thread/context static field.
2276 mono_class_field_is_special_static (MonoClassField *field)
2278 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
2280 if (mono_field_is_deleted (field))
2282 if (!(field->type->attrs & FIELD_ATTRIBUTE_LITERAL)) {
2283 if (field_is_special_static (field->parent, field) != SPECIAL_STATIC_NONE)
2290 * mono_class_has_special_static_fields:
2292 * Returns whenever @klass has any thread/context static fields.
2295 mono_class_has_special_static_fields (MonoClass *klass)
2297 MonoClassField *field;
2301 while ((field = mono_class_get_fields (klass, &iter))) {
2302 g_assert (field->parent == klass);
2303 if (mono_class_field_is_special_static (field))
2311 * create_remote_class_key:
2312 * Creates an array of pointers that can be used as a hash key for a remote class.
2313 * The first element of the array is the number of pointers.
2316 create_remote_class_key (MonoRemoteClass *remote_class, MonoClass *extra_class)
2321 if (remote_class == NULL) {
2322 if (extra_class->flags & TYPE_ATTRIBUTE_INTERFACE) {
2323 key = g_malloc (sizeof(gpointer) * 3);
2324 key [0] = GINT_TO_POINTER (2);
2325 key [1] = mono_defaults.marshalbyrefobject_class;
2326 key [2] = extra_class;
2328 key = g_malloc (sizeof(gpointer) * 2);
2329 key [0] = GINT_TO_POINTER (1);
2330 key [1] = extra_class;
2333 if (extra_class != NULL && (extra_class->flags & TYPE_ATTRIBUTE_INTERFACE)) {
2334 key = g_malloc (sizeof(gpointer) * (remote_class->interface_count + 3));
2335 key [0] = GINT_TO_POINTER (remote_class->interface_count + 2);
2336 key [1] = remote_class->proxy_class;
2338 // Keep the list of interfaces sorted
2339 for (i = 0, j = 2; i < remote_class->interface_count; i++, j++) {
2340 if (extra_class && remote_class->interfaces [i] > extra_class) {
2341 key [j++] = extra_class;
2344 key [j] = remote_class->interfaces [i];
2347 key [j] = extra_class;
2349 // Replace the old class. The interface list is the same
2350 key = g_malloc (sizeof(gpointer) * (remote_class->interface_count + 2));
2351 key [0] = GINT_TO_POINTER (remote_class->interface_count + 1);
2352 key [1] = extra_class != NULL ? extra_class : remote_class->proxy_class;
2353 for (i = 0; i < remote_class->interface_count; i++)
2354 key [2 + i] = remote_class->interfaces [i];
2362 * copy_remote_class_key:
2364 * Make a copy of KEY in the domain and return the copy.
2367 copy_remote_class_key (MonoDomain *domain, gpointer *key)
2369 int key_size = (GPOINTER_TO_UINT (key [0]) + 1) * sizeof (gpointer);
2370 gpointer *mp_key = mono_domain_alloc (domain, key_size);
2372 memcpy (mp_key, key, key_size);
2378 * mono_remote_class:
2379 * @domain: the application domain
2380 * @class_name: name of the remote class
2382 * Creates and initializes a MonoRemoteClass object for a remote type.
2384 * Can raise an exception on failure.
2387 mono_remote_class (MonoDomain *domain, MonoString *class_name, MonoClass *proxy_class)
2390 MonoRemoteClass *rc;
2391 gpointer* key, *mp_key;
2394 key = create_remote_class_key (NULL, proxy_class);
2396 mono_domain_lock (domain);
2397 rc = g_hash_table_lookup (domain->proxy_vtable_hash, key);
2401 mono_domain_unlock (domain);
2405 name = mono_string_to_utf8_mp (domain->mp, class_name, &error);
2406 if (!mono_error_ok (&error)) {
2408 mono_domain_unlock (domain);
2409 mono_error_raise_exception (&error);
2412 mp_key = copy_remote_class_key (domain, key);
2416 if (proxy_class->flags & TYPE_ATTRIBUTE_INTERFACE) {
2417 rc = mono_domain_alloc (domain, MONO_SIZEOF_REMOTE_CLASS + sizeof(MonoClass*));
2418 rc->interface_count = 1;
2419 rc->interfaces [0] = proxy_class;
2420 rc->proxy_class = mono_defaults.marshalbyrefobject_class;
2422 rc = mono_domain_alloc (domain, MONO_SIZEOF_REMOTE_CLASS);
2423 rc->interface_count = 0;
2424 rc->proxy_class = proxy_class;
2427 rc->default_vtable = NULL;
2428 rc->xdomain_vtable = NULL;
2429 rc->proxy_class_name = name;
2430 mono_perfcounters->loader_bytes += mono_string_length (class_name) + 1;
2432 g_hash_table_insert (domain->proxy_vtable_hash, key, rc);
2434 mono_domain_unlock (domain);
2439 * clone_remote_class:
2440 * Creates a copy of the remote_class, adding the provided class or interface
2442 static MonoRemoteClass*
2443 clone_remote_class (MonoDomain *domain, MonoRemoteClass* remote_class, MonoClass *extra_class)
2445 MonoRemoteClass *rc;
2446 gpointer* key, *mp_key;
2448 key = create_remote_class_key (remote_class, extra_class);
2449 rc = g_hash_table_lookup (domain->proxy_vtable_hash, key);
2455 mp_key = copy_remote_class_key (domain, key);
2459 if (extra_class->flags & TYPE_ATTRIBUTE_INTERFACE) {
2461 rc = mono_domain_alloc (domain, MONO_SIZEOF_REMOTE_CLASS + sizeof(MonoClass*) * (remote_class->interface_count + 1));
2462 rc->proxy_class = remote_class->proxy_class;
2463 rc->interface_count = remote_class->interface_count + 1;
2465 // Keep the list of interfaces sorted, since the hash key of
2466 // the remote class depends on this
2467 for (i = 0, j = 0; i < remote_class->interface_count; i++, j++) {
2468 if (remote_class->interfaces [i] > extra_class && i == j)
2469 rc->interfaces [j++] = extra_class;
2470 rc->interfaces [j] = remote_class->interfaces [i];
2473 rc->interfaces [j] = extra_class;
2475 // Replace the old class. The interface array is the same
2476 rc = mono_domain_alloc (domain, MONO_SIZEOF_REMOTE_CLASS + sizeof(MonoClass*) * remote_class->interface_count);
2477 rc->proxy_class = extra_class;
2478 rc->interface_count = remote_class->interface_count;
2479 if (rc->interface_count > 0)
2480 memcpy (rc->interfaces, remote_class->interfaces, rc->interface_count * sizeof (MonoClass*));
2483 rc->default_vtable = NULL;
2484 rc->xdomain_vtable = NULL;
2485 rc->proxy_class_name = remote_class->proxy_class_name;
2487 g_hash_table_insert (domain->proxy_vtable_hash, key, rc);
2493 mono_remote_class_vtable (MonoDomain *domain, MonoRemoteClass *remote_class, MonoRealProxy *rp)
2495 mono_loader_lock (); /*FIXME mono_class_from_mono_type and mono_class_proxy_vtable take it*/
2496 mono_domain_lock (domain);
2497 if (rp->target_domain_id != -1) {
2498 if (remote_class->xdomain_vtable == NULL)
2499 remote_class->xdomain_vtable = mono_class_proxy_vtable (domain, remote_class, MONO_REMOTING_TARGET_APPDOMAIN);
2500 mono_domain_unlock (domain);
2501 mono_loader_unlock ();
2502 return remote_class->xdomain_vtable;
2504 if (remote_class->default_vtable == NULL) {
2507 type = ((MonoReflectionType *)rp->class_to_proxy)->type;
2508 klass = mono_class_from_mono_type (type);
2509 if ((klass->is_com_object || (mono_defaults.com_object_class && klass == mono_defaults.com_object_class)) && !mono_class_vtable (mono_domain_get (), klass)->remote)
2510 remote_class->default_vtable = mono_class_proxy_vtable (domain, remote_class, MONO_REMOTING_TARGET_COMINTEROP);
2512 remote_class->default_vtable = mono_class_proxy_vtable (domain, remote_class, MONO_REMOTING_TARGET_UNKNOWN);
2515 mono_domain_unlock (domain);
2516 mono_loader_unlock ();
2517 return remote_class->default_vtable;
2521 * mono_upgrade_remote_class:
2522 * @domain: the application domain
2523 * @tproxy: the proxy whose remote class has to be upgraded.
2524 * @klass: class to which the remote class can be casted.
2526 * Updates the vtable of the remote class by adding the necessary method slots
2527 * and interface offsets so it can be safely casted to klass. klass can be a
2528 * class or an interface.
2531 mono_upgrade_remote_class (MonoDomain *domain, MonoObject *proxy_object, MonoClass *klass)
2533 MonoTransparentProxy *tproxy;
2534 MonoRemoteClass *remote_class;
2535 gboolean redo_vtable;
2537 mono_loader_lock (); /*FIXME mono_remote_class_vtable requires it.*/
2538 mono_domain_lock (domain);
2540 tproxy = (MonoTransparentProxy*) proxy_object;
2541 remote_class = tproxy->remote_class;
2543 if (klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
2546 for (i = 0; i < remote_class->interface_count && redo_vtable; i++)
2547 if (remote_class->interfaces [i] == klass)
2548 redo_vtable = FALSE;
2551 redo_vtable = (remote_class->proxy_class != klass);
2555 tproxy->remote_class = clone_remote_class (domain, remote_class, klass);
2556 proxy_object->vtable = mono_remote_class_vtable (domain, tproxy->remote_class, tproxy->rp);
2559 mono_domain_unlock (domain);
2560 mono_loader_unlock ();
2565 * mono_object_get_virtual_method:
2566 * @obj: object to operate on.
2569 * Retrieves the MonoMethod that would be called on obj if obj is passed as
2570 * the instance of a callvirt of method.
2573 mono_object_get_virtual_method (MonoObject *obj, MonoMethod *method)
2576 MonoMethod **vtable;
2578 MonoMethod *res = NULL;
2580 klass = mono_object_class (obj);
2581 if (klass == mono_defaults.transparent_proxy_class) {
2582 klass = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
2588 if (!is_proxy && ((method->flags & METHOD_ATTRIBUTE_FINAL) || !(method->flags & METHOD_ATTRIBUTE_VIRTUAL)))
2591 mono_class_setup_vtable (klass);
2592 vtable = klass->vtable;
2594 if (method->slot == -1) {
2595 /* method->slot might not be set for instances of generic methods */
2596 if (method->is_inflated) {
2597 g_assert (((MonoMethodInflated*)method)->declaring->slot != -1);
2598 method->slot = ((MonoMethodInflated*)method)->declaring->slot;
2601 g_assert_not_reached ();
2605 /* check method->slot is a valid index: perform isinstance? */
2606 if (method->slot != -1) {
2607 if (method->klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
2609 gboolean variance_used = FALSE;
2610 int iface_offset = mono_class_interface_offset_with_variance (klass, method->klass, &variance_used);
2611 g_assert (iface_offset > 0);
2612 res = vtable [iface_offset + method->slot];
2615 res = vtable [method->slot];
2620 /* It may be an interface, abstract class method or generic method */
2621 if (!res || mono_method_signature (res)->generic_param_count)
2624 /* generic methods demand invoke_with_check */
2625 if (mono_method_signature (res)->generic_param_count)
2626 res = mono_marshal_get_remoting_invoke_with_check (res);
2629 if (klass == mono_defaults.com_object_class || klass->is_com_object)
2630 res = mono_cominterop_get_invoke (res);
2633 res = mono_marshal_get_remoting_invoke (res);
2636 if (method->is_inflated) {
2637 /* Have to inflate the result */
2638 res = mono_class_inflate_generic_method (res, &((MonoMethodInflated*)method)->context);
2648 dummy_mono_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
2650 g_error ("runtime invoke called on uninitialized runtime");
2654 static MonoInvokeFunc default_mono_runtime_invoke = dummy_mono_runtime_invoke;
2657 * mono_runtime_invoke:
2658 * @method: method to invoke
2659 * @obJ: object instance
2660 * @params: arguments to the method
2661 * @exc: exception information.
2663 * Invokes the method represented by @method on the object @obj.
2665 * obj is the 'this' pointer, it should be NULL for static
2666 * methods, a MonoObject* for object instances and a pointer to
2667 * the value type for value types.
2669 * The params array contains the arguments to the method with the
2670 * same convention: MonoObject* pointers for object instances and
2671 * pointers to the value type otherwise.
2673 * From unmanaged code you'll usually use the
2674 * mono_runtime_invoke() variant.
2676 * Note that this function doesn't handle virtual methods for
2677 * you, it will exec the exact method you pass: we still need to
2678 * expose a function to lookup the derived class implementation
2679 * of a virtual method (there are examples of this in the code,
2682 * You can pass NULL as the exc argument if you don't want to
2683 * catch exceptions, otherwise, *exc will be set to the exception
2684 * thrown, if any. if an exception is thrown, you can't use the
2685 * MonoObject* result from the function.
2687 * If the method returns a value type, it is boxed in an object
2691 mono_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
2695 if (mono_runtime_get_no_exec ())
2696 g_warning ("Invoking method '%s' when running in no-exec mode.\n", mono_method_full_name (method, TRUE));
2698 if (mono_profiler_get_events () & MONO_PROFILE_METHOD_EVENTS)
2699 mono_profiler_method_start_invoke (method);
2701 result = default_mono_runtime_invoke (method, obj, params, exc);
2703 if (mono_profiler_get_events () & MONO_PROFILE_METHOD_EVENTS)
2704 mono_profiler_method_end_invoke (method);
2710 * mono_method_get_unmanaged_thunk:
2711 * @method: method to generate a thunk for.
2713 * Returns an unmanaged->managed thunk that can be used to call
2714 * a managed method directly from C.
2716 * The thunk's C signature closely matches the managed signature:
2718 * C#: public bool Equals (object obj);
2719 * C: typedef MonoBoolean (*Equals)(MonoObject*,
2720 * MonoObject*, MonoException**);
2722 * The 1st ("this") parameter must not be used with static methods:
2724 * C#: public static bool ReferenceEquals (object a, object b);
2725 * C: typedef MonoBoolean (*ReferenceEquals)(MonoObject*, MonoObject*,
2728 * The last argument must be a non-null pointer of a MonoException* pointer.
2729 * It has "out" semantics. After invoking the thunk, *ex will be NULL if no
2730 * exception has been thrown in managed code. Otherwise it will point
2731 * to the MonoException* caught by the thunk. In this case, the result of
2732 * the thunk is undefined:
2734 * MonoMethod *method = ... // MonoMethod* of System.Object.Equals
2735 * MonoException *ex = NULL;
2736 * Equals func = mono_method_get_unmanaged_thunk (method);
2737 * MonoBoolean res = func (thisObj, objToCompare, &ex);
2739 * // handle exception
2742 * The calling convention of the thunk matches the platform's default
2743 * convention. This means that under Windows, C declarations must
2744 * contain the __stdcall attribute:
2746 * C: typedef MonoBoolean (__stdcall *Equals)(MonoObject*,
2747 * MonoObject*, MonoException**);
2751 * Value type arguments and return values are treated as they were objects:
2753 * C#: public static Rectangle Intersect (Rectangle a, Rectangle b);
2754 * C: typedef MonoObject* (*Intersect)(MonoObject*, MonoObject*, MonoException**);
2756 * Arguments must be properly boxed upon trunk's invocation, while return
2757 * values must be unboxed.
2760 mono_method_get_unmanaged_thunk (MonoMethod *method)
2762 method = mono_marshal_get_thunk_invoke_wrapper (method);
2763 return mono_compile_method (method);
2767 set_value (MonoType *type, void *dest, void *value, int deref_pointer)
2771 /* object fields cannot be byref, so we don't need a
2773 gpointer *p = (gpointer*)dest;
2780 case MONO_TYPE_BOOLEAN:
2782 case MONO_TYPE_U1: {
2783 guint8 *p = (guint8*)dest;
2784 *p = value ? *(guint8*)value : 0;
2789 case MONO_TYPE_CHAR: {
2790 guint16 *p = (guint16*)dest;
2791 *p = value ? *(guint16*)value : 0;
2794 #if SIZEOF_VOID_P == 4
2799 case MONO_TYPE_U4: {
2800 gint32 *p = (gint32*)dest;
2801 *p = value ? *(gint32*)value : 0;
2804 #if SIZEOF_VOID_P == 8
2809 case MONO_TYPE_U8: {
2810 gint64 *p = (gint64*)dest;
2811 *p = value ? *(gint64*)value : 0;
2814 case MONO_TYPE_R4: {
2815 float *p = (float*)dest;
2816 *p = value ? *(float*)value : 0;
2819 case MONO_TYPE_R8: {
2820 double *p = (double*)dest;
2821 *p = value ? *(double*)value : 0;
2824 case MONO_TYPE_STRING:
2825 case MONO_TYPE_SZARRAY:
2826 case MONO_TYPE_CLASS:
2827 case MONO_TYPE_OBJECT:
2828 case MONO_TYPE_ARRAY:
2829 mono_gc_wbarrier_generic_store (dest, deref_pointer? *(gpointer*)value: value);
2831 case MONO_TYPE_FNPTR:
2832 case MONO_TYPE_PTR: {
2833 gpointer *p = (gpointer*)dest;
2834 *p = deref_pointer? *(gpointer*)value: value;
2837 case MONO_TYPE_VALUETYPE:
2838 /* note that 't' and 'type->type' can be different */
2839 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype) {
2840 t = mono_class_enum_basetype (type->data.klass)->type;
2843 MonoClass *class = mono_class_from_mono_type (type);
2844 int size = mono_class_value_size (class, NULL);
2846 memset (dest, 0, size);
2848 mono_gc_wbarrier_value_copy (dest, value, 1, class);
2851 case MONO_TYPE_GENERICINST:
2852 t = type->data.generic_class->container_class->byval_arg.type;
2855 g_warning ("got type %x", type->type);
2856 g_assert_not_reached ();
2861 * mono_field_set_value:
2862 * @obj: Instance object
2863 * @field: MonoClassField describing the field to set
2864 * @value: The value to be set
2866 * Sets the value of the field described by @field in the object instance @obj
2867 * to the value passed in @value. This method should only be used for instance
2868 * fields. For static fields, use mono_field_static_set_value.
2870 * The value must be on the native format of the field type.
2873 mono_field_set_value (MonoObject *obj, MonoClassField *field, void *value)
2877 g_return_if_fail (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC));
2879 dest = (char*)obj + field->offset;
2880 set_value (field->type, dest, value, FALSE);
2884 * mono_field_static_set_value:
2885 * @field: MonoClassField describing the field to set
2886 * @value: The value to be set
2888 * Sets the value of the static field described by @field
2889 * to the value passed in @value.
2891 * The value must be on the native format of the field type.
2894 mono_field_static_set_value (MonoVTable *vt, MonoClassField *field, void *value)
2898 g_return_if_fail (field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2899 /* you cant set a constant! */
2900 g_return_if_fail (!(field->type->attrs & FIELD_ATTRIBUTE_LITERAL));
2902 if (field->offset == -1) {
2903 /* Special static */
2904 gpointer addr = g_hash_table_lookup (vt->domain->special_static_fields, field);
2905 dest = mono_get_special_static_data (GPOINTER_TO_UINT (addr));
2907 dest = (char*)vt->data + field->offset;
2909 set_value (field->type, dest, value, FALSE);
2912 /* Used by the debugger */
2914 mono_vtable_get_static_field_data (MonoVTable *vt)
2920 mono_field_get_addr (MonoObject *obj, MonoVTable *vt, MonoClassField *field)
2924 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
2925 if (field->offset == -1) {
2926 /* Special static */
2927 gpointer addr = g_hash_table_lookup (vt->domain->special_static_fields, field);
2928 src = mono_get_special_static_data (GPOINTER_TO_UINT (addr));
2930 src = (guint8*)vt->data + field->offset;
2933 src = (guint8*)obj + field->offset;
2940 * mono_field_get_value:
2941 * @obj: Object instance
2942 * @field: MonoClassField describing the field to fetch information from
2943 * @value: pointer to the location where the value will be stored
2945 * Use this routine to get the value of the field @field in the object
2948 * The pointer provided by value must be of the field type, for reference
2949 * types this is a MonoObject*, for value types its the actual pointer to
2954 * mono_field_get_value (obj, int_field, &i);
2957 mono_field_get_value (MonoObject *obj, MonoClassField *field, void *value)
2963 g_return_if_fail (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC));
2965 src = (char*)obj + field->offset;
2966 set_value (field->type, value, src, TRUE);
2970 * mono_field_get_value_object:
2971 * @domain: domain where the object will be created (if boxing)
2972 * @field: MonoClassField describing the field to fetch information from
2973 * @obj: The object instance for the field.
2975 * Returns: a new MonoObject with the value from the given field. If the
2976 * field represents a value type, the value is boxed.
2980 mono_field_get_value_object (MonoDomain *domain, MonoClassField *field, MonoObject *obj)
2984 MonoVTable *vtable = NULL;
2986 gboolean is_static = FALSE;
2987 gboolean is_ref = FALSE;
2988 gboolean is_literal = FALSE;
2990 switch (field->type->type) {
2991 case MONO_TYPE_STRING:
2992 case MONO_TYPE_OBJECT:
2993 case MONO_TYPE_CLASS:
2994 case MONO_TYPE_ARRAY:
2995 case MONO_TYPE_SZARRAY:
3000 case MONO_TYPE_BOOLEAN:
3003 case MONO_TYPE_CHAR:
3012 case MONO_TYPE_VALUETYPE:
3013 is_ref = field->type->byref;
3015 case MONO_TYPE_GENERICINST:
3016 is_ref = !mono_type_generic_inst_is_valuetype (field->type);
3019 g_error ("type 0x%x not handled in "
3020 "mono_field_get_value_object", field->type->type);
3024 if (field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
3027 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
3031 vtable = mono_class_vtable (domain, field->parent);
3033 char *name = mono_type_get_full_name (field->parent);
3034 /*FIXME extend this to use the MonoError api*/
3035 g_warning ("Could not retrieve the vtable for type %s in mono_field_get_value_object", name);
3039 if (!vtable->initialized)
3040 mono_runtime_class_init (vtable);
3048 get_default_field_value (domain, field, &o);
3049 } else if (is_static) {
3050 mono_field_static_get_value (vtable, field, &o);
3052 mono_field_get_value (obj, field, &o);
3057 /* boxed value type */
3058 klass = mono_class_from_mono_type (field->type);
3060 if (mono_class_is_nullable (klass))
3061 return mono_nullable_box (mono_field_get_addr (obj, vtable, field), klass);
3063 o = mono_object_new (domain, klass);
3064 v = ((gchar *) o) + sizeof (MonoObject);
3067 get_default_field_value (domain, field, v);
3068 } else if (is_static) {
3069 mono_field_static_get_value (vtable, field, v);
3071 mono_field_get_value (obj, field, v);
3078 mono_get_constant_value_from_blob (MonoDomain* domain, MonoTypeEnum type, const char *blob, void *value)
3081 const char *p = blob;
3082 mono_metadata_decode_blob_size (p, &p);
3085 case MONO_TYPE_BOOLEAN:
3088 *(guint8 *) value = *p;
3090 case MONO_TYPE_CHAR:
3093 *(guint16*) value = read16 (p);
3097 *(guint32*) value = read32 (p);
3101 *(guint64*) value = read64 (p);
3104 readr4 (p, (float*) value);
3107 readr8 (p, (double*) value);
3109 case MONO_TYPE_STRING:
3110 *(gpointer*) value = mono_ldstr_metadata_sig (domain, blob);
3112 case MONO_TYPE_CLASS:
3113 *(gpointer*) value = NULL;
3117 g_warning ("type 0x%02x should not be in constant table", type);
3123 get_default_field_value (MonoDomain* domain, MonoClassField *field, void *value)
3125 MonoTypeEnum def_type;
3128 data = mono_class_get_field_default_value (field, &def_type);
3129 mono_get_constant_value_from_blob (domain, def_type, data, value);
3133 * mono_field_static_get_value:
3134 * @vt: vtable to the object
3135 * @field: MonoClassField describing the field to fetch information from
3136 * @value: where the value is returned
3138 * Use this routine to get the value of the static field @field value.
3140 * The pointer provided by value must be of the field type, for reference
3141 * types this is a MonoObject*, for value types its the actual pointer to
3146 * mono_field_static_get_value (vt, int_field, &i);
3149 mono_field_static_get_value (MonoVTable *vt, MonoClassField *field, void *value)
3153 g_return_if_fail (field->type->attrs & FIELD_ATTRIBUTE_STATIC);
3155 if (field->type->attrs & FIELD_ATTRIBUTE_LITERAL) {
3156 get_default_field_value (vt->domain, field, value);
3160 if (field->offset == -1) {
3161 /* Special static */
3162 gpointer addr = g_hash_table_lookup (vt->domain->special_static_fields, field);
3163 src = mono_get_special_static_data (GPOINTER_TO_UINT (addr));
3165 src = (char*)vt->data + field->offset;
3167 set_value (field->type, value, src, TRUE);
3171 * mono_property_set_value:
3172 * @prop: MonoProperty to set
3173 * @obj: instance object on which to act
3174 * @params: parameters to pass to the propery
3175 * @exc: optional exception
3177 * Invokes the property's set method with the given arguments on the
3178 * object instance obj (or NULL for static properties).
3180 * You can pass NULL as the exc argument if you don't want to
3181 * catch exceptions, otherwise, *exc will be set to the exception
3182 * thrown, if any. if an exception is thrown, you can't use the
3183 * MonoObject* result from the function.
3186 mono_property_set_value (MonoProperty *prop, void *obj, void **params, MonoObject **exc)
3188 default_mono_runtime_invoke (prop->set, obj, params, exc);
3192 * mono_property_get_value:
3193 * @prop: MonoProperty to fetch
3194 * @obj: instance object on which to act
3195 * @params: parameters to pass to the propery
3196 * @exc: optional exception
3198 * Invokes the property's get method with the given arguments on the
3199 * object instance obj (or NULL for static properties).
3201 * You can pass NULL as the exc argument if you don't want to
3202 * catch exceptions, otherwise, *exc will be set to the exception
3203 * thrown, if any. if an exception is thrown, you can't use the
3204 * MonoObject* result from the function.
3206 * Returns: the value from invoking the get method on the property.
3209 mono_property_get_value (MonoProperty *prop, void *obj, void **params, MonoObject **exc)
3211 return default_mono_runtime_invoke (prop->get, obj, params, exc);
3215 * mono_nullable_init:
3216 * @buf: The nullable structure to initialize.
3217 * @value: the value to initialize from
3218 * @klass: the type for the object
3220 * Initialize the nullable structure pointed to by @buf from @value which
3221 * should be a boxed value type. The size of @buf should be able to hold
3222 * as much data as the @klass->instance_size (which is the number of bytes
3223 * that will be copies).
3225 * Since Nullables have variable structure, we can not define a C
3226 * structure for them.
3229 mono_nullable_init (guint8 *buf, MonoObject *value, MonoClass *klass)
3231 MonoClass *param_class = klass->cast_class;
3233 g_assert (mono_class_from_mono_type (klass->fields [0].type) == param_class);
3234 g_assert (mono_class_from_mono_type (klass->fields [1].type) == mono_defaults.boolean_class);
3236 *(guint8*)(buf + klass->fields [1].offset - sizeof (MonoObject)) = value ? 1 : 0;
3238 if (param_class->has_references)
3239 mono_gc_wbarrier_value_copy (buf + klass->fields [0].offset - sizeof (MonoObject), mono_object_unbox (value), 1, param_class);
3241 memcpy (buf + klass->fields [0].offset - sizeof (MonoObject), mono_object_unbox (value), mono_class_value_size (param_class, NULL));
3243 memset (buf + klass->fields [0].offset - sizeof (MonoObject), 0, mono_class_value_size (param_class, NULL));
3248 * mono_nullable_box:
3249 * @buf: The buffer representing the data to be boxed
3250 * @klass: the type to box it as.
3252 * Creates a boxed vtype or NULL from the Nullable structure pointed to by
3256 mono_nullable_box (guint8 *buf, MonoClass *klass)
3258 MonoClass *param_class = klass->cast_class;
3260 g_assert (mono_class_from_mono_type (klass->fields [0].type) == param_class);
3261 g_assert (mono_class_from_mono_type (klass->fields [1].type) == mono_defaults.boolean_class);
3263 if (*(guint8*)(buf + klass->fields [1].offset - sizeof (MonoObject))) {
3264 MonoObject *o = mono_object_new (mono_domain_get (), param_class);
3265 if (param_class->has_references)
3266 mono_gc_wbarrier_value_copy (mono_object_unbox (o), buf + klass->fields [0].offset - sizeof (MonoObject), 1, param_class);
3268 memcpy (mono_object_unbox (o), buf + klass->fields [0].offset - sizeof (MonoObject), mono_class_value_size (param_class, NULL));
3276 * mono_get_delegate_invoke:
3277 * @klass: The delegate class
3279 * Returns: the MonoMethod for the "Invoke" method in the delegate klass
3282 mono_get_delegate_invoke (MonoClass *klass)
3286 /* This is called at runtime, so avoid the slower search in metadata */
3287 mono_class_setup_methods (klass);
3288 if (klass->exception_type)
3290 im = mono_class_get_method_from_name (klass, "Invoke", -1);
3297 * mono_runtime_delegate_invoke:
3298 * @delegate: pointer to a delegate object.
3299 * @params: parameters for the delegate.
3300 * @exc: Pointer to the exception result.
3302 * Invokes the delegate method @delegate with the parameters provided.
3304 * You can pass NULL as the exc argument if you don't want to
3305 * catch exceptions, otherwise, *exc will be set to the exception
3306 * thrown, if any. if an exception is thrown, you can't use the
3307 * MonoObject* result from the function.
3310 mono_runtime_delegate_invoke (MonoObject *delegate, void **params, MonoObject **exc)
3314 im = mono_get_delegate_invoke (delegate->vtable->klass);
3317 return mono_runtime_invoke (im, delegate, params, exc);
3320 static char **main_args = NULL;
3321 static int num_main_args;
3324 * mono_runtime_get_main_args:
3326 * Returns: a MonoArray with the arguments passed to the main program
3329 mono_runtime_get_main_args (void)
3333 MonoDomain *domain = mono_domain_get ();
3338 res = (MonoArray*)mono_array_new (domain, mono_defaults.string_class, num_main_args);
3340 for (i = 0; i < num_main_args; ++i)
3341 mono_array_setref (res, i, mono_string_new (domain, main_args [i]));
3347 fire_process_exit_event (void)
3349 MonoClassField *field;
3350 MonoDomain *domain = mono_domain_get ();
3352 MonoObject *delegate, *exc;
3354 field = mono_class_get_field_from_name (mono_defaults.appdomain_class, "ProcessExit");
3357 if (domain != mono_get_root_domain ())
3360 delegate = *(MonoObject **)(((char *)domain->domain) + field->offset);
3361 if (delegate == NULL)
3366 mono_runtime_delegate_invoke (delegate, pa, &exc);
3370 * mono_runtime_run_main:
3371 * @method: the method to start the application with (usually Main)
3372 * @argc: number of arguments from the command line
3373 * @argv: array of strings from the command line
3374 * @exc: excetption results
3376 * Execute a standard Main() method (argc/argv contains the
3377 * executable name). This method also sets the command line argument value
3378 * needed by System.Environment.
3383 mono_runtime_run_main (MonoMethod *method, int argc, char* argv[],
3387 MonoArray *args = NULL;
3388 MonoDomain *domain = mono_domain_get ();
3389 gchar *utf8_fullpath;
3392 g_assert (method != NULL);
3394 mono_thread_set_main (mono_thread_current ());
3396 main_args = g_new0 (char*, argc);
3397 num_main_args = argc;
3399 if (!g_path_is_absolute (argv [0])) {
3400 gchar *basename = g_path_get_basename (argv [0]);
3401 gchar *fullpath = g_build_filename (method->klass->image->assembly->basedir,
3405 utf8_fullpath = mono_utf8_from_external (fullpath);
3406 if(utf8_fullpath == NULL) {
3407 /* Printing the arg text will cause glib to
3408 * whinge about "Invalid UTF-8", but at least
3409 * its relevant, and shows the problem text
3412 g_print ("\nCannot determine the text encoding for the assembly location: %s\n", fullpath);
3413 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
3420 utf8_fullpath = mono_utf8_from_external (argv[0]);
3421 if(utf8_fullpath == NULL) {
3422 g_print ("\nCannot determine the text encoding for the assembly location: %s\n", argv[0]);
3423 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
3428 main_args [0] = utf8_fullpath;
3430 for (i = 1; i < argc; ++i) {
3433 utf8_arg=mono_utf8_from_external (argv[i]);
3434 if(utf8_arg==NULL) {
3435 /* Ditto the comment about Invalid UTF-8 here */
3436 g_print ("\nCannot determine the text encoding for argument %d (%s).\n", i, argv[i]);
3437 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
3441 main_args [i] = utf8_arg;
3445 if (mono_method_signature (method)->param_count) {
3446 args = (MonoArray*)mono_array_new (domain, mono_defaults.string_class, argc);
3447 for (i = 0; i < argc; ++i) {
3448 /* The encodings should all work, given that
3449 * we've checked all these args for the
3452 gchar *str = mono_utf8_from_external (argv [i]);
3453 MonoString *arg = mono_string_new (domain, str);
3454 mono_array_setref (args, i, arg);
3458 args = (MonoArray*)mono_array_new (domain, mono_defaults.string_class, 0);
3461 mono_assembly_set_main (method->klass->image->assembly);
3463 result = mono_runtime_exec_main (method, args, exc);
3464 fire_process_exit_event ();
3469 serialize_object (MonoObject *obj, gboolean *failure, MonoObject **exc)
3471 static MonoMethod *serialize_method;
3476 if (!serialize_method) {
3477 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
3478 serialize_method = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
3481 if (!serialize_method) {
3486 g_assert (!mono_object_class (obj)->marshalbyref);
3490 array = mono_runtime_invoke (serialize_method, NULL, params, exc);
3498 deserialize_object (MonoObject *obj, gboolean *failure, MonoObject **exc)
3500 static MonoMethod *deserialize_method;
3505 if (!deserialize_method) {
3506 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
3507 deserialize_method = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
3509 if (!deserialize_method) {
3516 result = mono_runtime_invoke (deserialize_method, NULL, params, exc);
3524 make_transparent_proxy (MonoObject *obj, gboolean *failure, MonoObject **exc)
3526 static MonoMethod *get_proxy_method;
3528 MonoDomain *domain = mono_domain_get ();
3529 MonoRealProxy *real_proxy;
3530 MonoReflectionType *reflection_type;
3531 MonoTransparentProxy *transparent_proxy;
3533 if (!get_proxy_method)
3534 get_proxy_method = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
3536 g_assert (obj->vtable->klass->marshalbyref);
3538 real_proxy = (MonoRealProxy*) mono_object_new (domain, mono_defaults.real_proxy_class);
3539 reflection_type = mono_type_get_object (domain, &obj->vtable->klass->byval_arg);
3541 MONO_OBJECT_SETREF (real_proxy, class_to_proxy, reflection_type);
3542 MONO_OBJECT_SETREF (real_proxy, unwrapped_server, obj);
3545 transparent_proxy = (MonoTransparentProxy*) mono_runtime_invoke (get_proxy_method, real_proxy, NULL, exc);
3549 return (MonoObject*) transparent_proxy;
3553 * mono_object_xdomain_representation
3555 * @target_domain: a domain
3556 * @exc: pointer to a MonoObject*
3558 * Creates a representation of obj in the domain target_domain. This
3559 * is either a copy of obj arrived through via serialization and
3560 * deserialization or a proxy, depending on whether the object is
3561 * serializable or marshal by ref. obj must not be in target_domain.
3563 * If the object cannot be represented in target_domain, NULL is
3564 * returned and *exc is set to an appropriate exception.
3567 mono_object_xdomain_representation (MonoObject *obj, MonoDomain *target_domain, MonoObject **exc)
3569 MonoObject *deserialized = NULL;
3570 gboolean failure = FALSE;
3574 if (mono_object_class (obj)->marshalbyref) {
3575 deserialized = make_transparent_proxy (obj, &failure, exc);
3577 MonoDomain *domain = mono_domain_get ();
3578 MonoObject *serialized;
3580 mono_domain_set_internal_with_options (mono_object_domain (obj), FALSE);
3581 serialized = serialize_object (obj, &failure, exc);
3582 mono_domain_set_internal_with_options (target_domain, FALSE);
3584 deserialized = deserialize_object (serialized, &failure, exc);
3585 if (domain != target_domain)
3586 mono_domain_set_internal_with_options (domain, FALSE);
3589 return deserialized;
3592 /* Used in call_unhandled_exception_delegate */
3594 create_unhandled_exception_eventargs (MonoObject *exc)
3598 MonoMethod *method = NULL;
3599 MonoBoolean is_terminating = TRUE;
3602 klass = mono_class_from_name (mono_defaults.corlib, "System", "UnhandledExceptionEventArgs");
3605 mono_class_init (klass);
3607 /* UnhandledExceptionEventArgs only has 1 public ctor with 2 args */
3608 method = mono_class_get_method_from_name_flags (klass, ".ctor", 2, METHOD_ATTRIBUTE_PUBLIC);
3612 args [1] = &is_terminating;
3614 obj = mono_object_new (mono_domain_get (), klass);
3615 mono_runtime_invoke (method, obj, args, NULL);
3620 /* Used in mono_unhandled_exception */
3622 call_unhandled_exception_delegate (MonoDomain *domain, MonoObject *delegate, MonoObject *exc) {
3623 MonoObject *e = NULL;
3625 MonoDomain *current_domain = mono_domain_get ();
3627 if (domain != current_domain)
3628 mono_domain_set_internal_with_options (domain, FALSE);
3630 g_assert (domain == mono_object_domain (domain->domain));
3632 if (mono_object_domain (exc) != domain) {
3633 MonoObject *serialization_exc;
3635 exc = mono_object_xdomain_representation (exc, domain, &serialization_exc);
3637 if (serialization_exc) {
3639 exc = mono_object_xdomain_representation (serialization_exc, domain, &dummy);
3642 exc = (MonoObject*) mono_exception_from_name_msg (mono_get_corlib (),
3643 "System.Runtime.Serialization", "SerializationException",
3644 "Could not serialize unhandled exception.");
3648 g_assert (mono_object_domain (exc) == domain);
3650 pa [0] = domain->domain;
3651 pa [1] = create_unhandled_exception_eventargs (exc);
3652 mono_runtime_delegate_invoke (delegate, pa, &e);
3654 if (domain != current_domain)
3655 mono_domain_set_internal_with_options (current_domain, FALSE);
3659 gchar *msg = mono_string_to_utf8_checked (((MonoException *) e)->message, &error);
3660 if (!mono_error_ok (&error)) {
3661 g_warning ("Exception inside UnhandledException handler with invalid message (Invalid characters)\n");
3662 mono_error_cleanup (&error);
3664 g_warning ("exception inside UnhandledException handler: %s\n", msg);
3670 static MonoRuntimeUnhandledExceptionPolicy runtime_unhandled_exception_policy = MONO_UNHANDLED_POLICY_CURRENT;
3673 * mono_runtime_unhandled_exception_policy_set:
3674 * @policy: the new policy
3676 * This is a VM internal routine.
3678 * Sets the runtime policy for handling unhandled exceptions.
3681 mono_runtime_unhandled_exception_policy_set (MonoRuntimeUnhandledExceptionPolicy policy) {
3682 runtime_unhandled_exception_policy = policy;
3686 * mono_runtime_unhandled_exception_policy_get:
3688 * This is a VM internal routine.
3690 * Gets the runtime policy for handling unhandled exceptions.
3692 MonoRuntimeUnhandledExceptionPolicy
3693 mono_runtime_unhandled_exception_policy_get (void) {
3694 return runtime_unhandled_exception_policy;
3698 * mono_unhandled_exception:
3699 * @exc: exception thrown
3701 * This is a VM internal routine.
3703 * We call this function when we detect an unhandled exception
3704 * in the default domain.
3706 * It invokes the * UnhandledException event in AppDomain or prints
3707 * a warning to the console
3710 mono_unhandled_exception (MonoObject *exc)
3712 MonoDomain *current_domain = mono_domain_get ();
3713 MonoDomain *root_domain = mono_get_root_domain ();
3714 MonoClassField *field;
3715 MonoObject *current_appdomain_delegate;
3716 MonoObject *root_appdomain_delegate;
3718 field=mono_class_get_field_from_name(mono_defaults.appdomain_class,
3719 "UnhandledException");
3722 if (exc->vtable->klass != mono_defaults.threadabortexception_class) {
3723 gboolean abort_process = (main_thread && (mono_thread_internal_current () == main_thread->internal_thread)) ||
3724 (mono_runtime_unhandled_exception_policy_get () == MONO_UNHANDLED_POLICY_CURRENT);
3725 root_appdomain_delegate = *(MonoObject **)(((char *)root_domain->domain) + field->offset);
3726 if (current_domain != root_domain) {
3727 current_appdomain_delegate = *(MonoObject **)(((char *)current_domain->domain) + field->offset);
3729 current_appdomain_delegate = NULL;
3732 /* set exitcode only if we will abort the process */
3734 mono_environment_exitcode_set (1);
3735 if ((current_appdomain_delegate == NULL) && (root_appdomain_delegate == NULL)) {
3736 mono_print_unhandled_exception (exc);
3738 if (root_appdomain_delegate) {
3739 call_unhandled_exception_delegate (root_domain, root_appdomain_delegate, exc);
3741 if (current_appdomain_delegate) {
3742 call_unhandled_exception_delegate (current_domain, current_appdomain_delegate, exc);
3749 * Launch a new thread to execute a function
3751 * main_func is called back from the thread with main_args as the
3752 * parameter. The callback function is expected to start Main()
3753 * eventually. This function then waits for all managed threads to
3755 * It is not necesseray anymore to execute managed code in a subthread,
3756 * so this function should not be used anymore by default: just
3757 * execute the code and then call mono_thread_manage ().
3760 mono_runtime_exec_managed_code (MonoDomain *domain,
3761 MonoMainThreadFunc main_func,
3764 mono_thread_create (domain, main_func, main_args);
3766 mono_thread_manage ();
3770 * Execute a standard Main() method (args doesn't contain the
3774 mono_runtime_exec_main (MonoMethod *method, MonoArray *args, MonoObject **exc)
3779 MonoCustomAttrInfo* cinfo;
3780 gboolean has_stathread_attribute;
3781 MonoInternalThread* thread = mono_thread_internal_current ();
3787 domain = mono_object_domain (args);
3788 if (!domain->entry_assembly) {
3790 MonoAssembly *assembly;
3792 assembly = method->klass->image->assembly;
3793 domain->entry_assembly = assembly;
3794 /* Domains created from another domain already have application_base and configuration_file set */
3795 if (domain->setup->application_base == NULL) {
3796 MONO_OBJECT_SETREF (domain->setup, application_base, mono_string_new (domain, assembly->basedir));
3799 if (domain->setup->configuration_file == NULL) {
3800 str = g_strconcat (assembly->image->name, ".config", NULL);
3801 MONO_OBJECT_SETREF (domain->setup, configuration_file, mono_string_new (domain, str));
3803 mono_set_private_bin_path_from_config (domain);
3807 cinfo = mono_custom_attrs_from_method (method);
3809 static MonoClass *stathread_attribute = NULL;
3810 if (!stathread_attribute)
3811 stathread_attribute = mono_class_from_name (mono_defaults.corlib, "System", "STAThreadAttribute");
3812 has_stathread_attribute = mono_custom_attrs_has_attr (cinfo, stathread_attribute);
3814 mono_custom_attrs_free (cinfo);
3816 has_stathread_attribute = FALSE;
3818 if (has_stathread_attribute) {
3819 thread->apartment_state = ThreadApartmentState_STA;
3821 thread->apartment_state = ThreadApartmentState_MTA;
3823 mono_thread_init_apartment_state ();
3825 mono_debugger_event (MONO_DEBUGGER_EVENT_REACHED_MAIN, 0, 0);
3827 /* FIXME: check signature of method */
3828 if (mono_method_signature (method)->ret->type == MONO_TYPE_I4) {
3830 res = mono_runtime_invoke (method, NULL, pa, exc);
3832 rval = *(guint32 *)((char *)res + sizeof (MonoObject));
3836 mono_environment_exitcode_set (rval);
3838 mono_runtime_invoke (method, NULL, pa, exc);
3842 /* If the return type of Main is void, only
3843 * set the exitcode if an exception was thrown
3844 * (we don't want to blow away an
3845 * explicitly-set exit code)
3848 mono_environment_exitcode_set (rval);
3852 mono_debugger_event (MONO_DEBUGGER_EVENT_MAIN_EXITED, (guint64) (gsize) rval, 0);
3858 * mono_install_runtime_invoke:
3859 * @func: Function to install
3861 * This is a VM internal routine
3864 mono_install_runtime_invoke (MonoInvokeFunc func)
3866 default_mono_runtime_invoke = func ? func: dummy_mono_runtime_invoke;
3871 * mono_runtime_invoke_array:
3872 * @method: method to invoke
3873 * @obJ: object instance
3874 * @params: arguments to the method
3875 * @exc: exception information.
3877 * Invokes the method represented by @method on the object @obj.
3879 * obj is the 'this' pointer, it should be NULL for static
3880 * methods, a MonoObject* for object instances and a pointer to
3881 * the value type for value types.
3883 * The params array contains the arguments to the method with the
3884 * same convention: MonoObject* pointers for object instances and
3885 * pointers to the value type otherwise. The _invoke_array
3886 * variant takes a C# object[] as the params argument (MonoArray
3887 * *params): in this case the value types are boxed inside the
3888 * respective reference representation.
3890 * From unmanaged code you'll usually use the
3891 * mono_runtime_invoke() variant.
3893 * Note that this function doesn't handle virtual methods for
3894 * you, it will exec the exact method you pass: we still need to
3895 * expose a function to lookup the derived class implementation
3896 * of a virtual method (there are examples of this in the code,
3899 * You can pass NULL as the exc argument if you don't want to
3900 * catch exceptions, otherwise, *exc will be set to the exception
3901 * thrown, if any. if an exception is thrown, you can't use the
3902 * MonoObject* result from the function.
3904 * If the method returns a value type, it is boxed in an object
3908 mono_runtime_invoke_array (MonoMethod *method, void *obj, MonoArray *params,
3911 MonoMethodSignature *sig = mono_method_signature (method);
3912 gpointer *pa = NULL;
3915 gboolean has_byref_nullables = FALSE;
3917 if (NULL != params) {
3918 pa = alloca (sizeof (gpointer) * mono_array_length (params));
3919 for (i = 0; i < mono_array_length (params); i++) {
3920 MonoType *t = sig->params [i];
3926 case MONO_TYPE_BOOLEAN:
3929 case MONO_TYPE_CHAR:
3938 case MONO_TYPE_VALUETYPE:
3939 if (t->type == MONO_TYPE_VALUETYPE && mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3940 /* The runtime invoke wrapper needs the original boxed vtype, it does handle byref values as well. */
3941 pa [i] = mono_array_get (params, MonoObject*, i);
3943 has_byref_nullables = TRUE;
3945 /* MS seems to create the objects if a null is passed in */
3946 if (!mono_array_get (params, MonoObject*, i))
3947 mono_array_setref (params, i, mono_object_new (mono_domain_get (), mono_class_from_mono_type (sig->params [i])));
3951 * We can't pass the unboxed vtype byref to the callee, since
3952 * that would mean the callee would be able to modify boxed
3953 * primitive types. So we (and MS) make a copy of the boxed
3954 * object, pass that to the callee, and replace the original
3955 * boxed object in the arg array with the copy.
3957 MonoObject *orig = mono_array_get (params, MonoObject*, i);
3958 MonoObject *copy = mono_value_box (mono_domain_get (), orig->vtable->klass, mono_object_unbox (orig));
3959 mono_array_setref (params, i, copy);
3962 pa [i] = mono_object_unbox (mono_array_get (params, MonoObject*, i));
3965 case MONO_TYPE_STRING:
3966 case MONO_TYPE_OBJECT:
3967 case MONO_TYPE_CLASS:
3968 case MONO_TYPE_ARRAY:
3969 case MONO_TYPE_SZARRAY:
3971 pa [i] = mono_array_addr (params, MonoObject*, i);
3972 // FIXME: I need to check this code path
3974 pa [i] = mono_array_get (params, MonoObject*, i);
3976 case MONO_TYPE_GENERICINST:
3978 t = &t->data.generic_class->container_class->this_arg;
3980 t = &t->data.generic_class->container_class->byval_arg;
3982 case MONO_TYPE_PTR: {
3985 /* The argument should be an IntPtr */
3986 arg = mono_array_get (params, MonoObject*, i);
3990 g_assert (arg->vtable->klass == mono_defaults.int_class);
3991 pa [i] = ((MonoIntPtr*)arg)->m_value;
3996 g_error ("type 0x%x not handled in mono_runtime_invoke_array", sig->params [i]->type);
4001 if (!strcmp (method->name, ".ctor") && method->klass != mono_defaults.string_class) {
4004 if (mono_class_is_nullable (method->klass)) {
4005 /* Need to create a boxed vtype instead */
4011 return mono_value_box (mono_domain_get (), method->klass->cast_class, pa [0]);
4015 obj = mono_object_new (mono_domain_get (), method->klass);
4016 g_assert (obj); /*maybe we should raise a TLE instead?*/
4017 if (mono_object_class(obj) == mono_defaults.transparent_proxy_class) {
4018 method = mono_marshal_get_remoting_invoke (method->slot == -1 ? method : method->klass->vtable [method->slot]);
4020 if (method->klass->valuetype)
4021 o = mono_object_unbox (obj);
4024 } else if (method->klass->valuetype) {
4025 obj = mono_value_box (mono_domain_get (), method->klass, obj);
4028 mono_runtime_invoke (method, o, pa, exc);
4031 if (mono_class_is_nullable (method->klass)) {
4032 MonoObject *nullable;
4034 /* Convert the unboxed vtype into a Nullable structure */
4035 nullable = mono_object_new (mono_domain_get (), method->klass);
4037 mono_nullable_init (mono_object_unbox (nullable), mono_value_box (mono_domain_get (), method->klass->cast_class, obj), method->klass);
4038 obj = mono_object_unbox (nullable);
4041 /* obj must be already unboxed if needed */
4042 res = mono_runtime_invoke (method, obj, pa, exc);
4044 if (sig->ret->type == MONO_TYPE_PTR) {
4045 MonoClass *pointer_class;
4046 static MonoMethod *box_method;
4048 MonoObject *box_exc;
4051 * The runtime-invoke wrapper returns a boxed IntPtr, need to
4052 * convert it to a Pointer object.
4054 pointer_class = mono_class_from_name_cached (mono_defaults.corlib, "System.Reflection", "Pointer");
4056 box_method = mono_class_get_method_from_name (pointer_class, "Box", -1);
4058 g_assert (res->vtable->klass == mono_defaults.int_class);
4059 box_args [0] = ((MonoIntPtr*)res)->m_value;
4060 box_args [1] = mono_type_get_object (mono_domain_get (), sig->ret);
4061 res = mono_runtime_invoke (box_method, NULL, box_args, &box_exc);
4062 g_assert (!box_exc);
4065 if (has_byref_nullables) {
4067 * The runtime invoke wrapper already converted byref nullables back,
4068 * and stored them in pa, we just need to copy them back to the
4071 for (i = 0; i < mono_array_length (params); i++) {
4072 MonoType *t = sig->params [i];
4074 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
4075 mono_array_setref (params, i, pa [i]);
4084 arith_overflow (void)
4086 mono_raise_exception (mono_get_exception_overflow ());
4090 * mono_object_allocate:
4091 * @size: number of bytes to allocate
4093 * This is a very simplistic routine until we have our GC-aware
4096 * Returns: an allocated object of size @size, or NULL on failure.
4098 static inline void *
4099 mono_object_allocate (size_t size, MonoVTable *vtable)
4102 mono_stats.new_object_count++;
4103 ALLOC_OBJECT (o, vtable, size);
4109 * mono_object_allocate_ptrfree:
4110 * @size: number of bytes to allocate
4112 * Note that the memory allocated is not zeroed.
4113 * Returns: an allocated object of size @size, or NULL on failure.
4115 static inline void *
4116 mono_object_allocate_ptrfree (size_t size, MonoVTable *vtable)
4119 mono_stats.new_object_count++;
4120 ALLOC_PTRFREE (o, vtable, size);
4124 static inline void *
4125 mono_object_allocate_spec (size_t size, MonoVTable *vtable)
4128 ALLOC_TYPED (o, size, vtable);
4129 mono_stats.new_object_count++;
4136 * @klass: the class of the object that we want to create
4138 * Returns: a newly created object whose definition is
4139 * looked up using @klass. This will not invoke any constructors,
4140 * so the consumer of this routine has to invoke any constructors on
4141 * its own to initialize the object.
4143 * It returns NULL on failure.
4146 mono_object_new (MonoDomain *domain, MonoClass *klass)
4150 MONO_ARCH_SAVE_REGS;
4151 vtable = mono_class_vtable (domain, klass);
4154 return mono_object_new_specific (vtable);
4158 * mono_object_new_specific:
4159 * @vtable: the vtable of the object that we want to create
4161 * Returns: A newly created object with class and domain specified
4165 mono_object_new_specific (MonoVTable *vtable)
4169 MONO_ARCH_SAVE_REGS;
4171 /* check for is_com_object for COM Interop */
4172 if (vtable->remote || vtable->klass->is_com_object)
4175 MonoMethod *im = vtable->domain->create_proxy_for_type_method;
4178 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Activation", "ActivationServices");
4181 mono_class_init (klass);
4183 im = mono_class_get_method_from_name (klass, "CreateProxyForType", 1);
4185 vtable->domain->create_proxy_for_type_method = im;
4188 pa [0] = mono_type_get_object (mono_domain_get (), &vtable->klass->byval_arg);
4190 o = mono_runtime_invoke (im, NULL, pa, NULL);
4191 if (o != NULL) return o;
4194 return mono_object_new_alloc_specific (vtable);
4198 mono_object_new_alloc_specific (MonoVTable *vtable)
4202 if (!vtable->klass->has_references) {
4203 o = mono_object_new_ptrfree (vtable);
4204 } else if (vtable->gc_descr != GC_NO_DESCRIPTOR) {
4205 o = mono_object_allocate_spec (vtable->klass->instance_size, vtable);
4207 /* printf("OBJECT: %s.%s.\n", vtable->klass->name_space, vtable->klass->name); */
4208 o = mono_object_allocate (vtable->klass->instance_size, vtable);
4210 if (G_UNLIKELY (vtable->klass->has_finalize))
4211 mono_object_register_finalizer (o);
4213 if (G_UNLIKELY (profile_allocs))
4214 mono_profiler_allocation (o, vtable->klass);
4219 mono_object_new_fast (MonoVTable *vtable)
4222 ALLOC_TYPED (o, vtable->klass->instance_size, vtable);
4227 mono_object_new_ptrfree (MonoVTable *vtable)
4230 ALLOC_PTRFREE (obj, vtable, vtable->klass->instance_size);
4231 #if NEED_TO_ZERO_PTRFREE
4232 /* an inline memset is much faster for the common vcase of small objects
4233 * note we assume the allocated size is a multiple of sizeof (void*).
4235 if (vtable->klass->instance_size < 128) {
4237 end = (gpointer*)((char*)obj + vtable->klass->instance_size);
4238 p = (gpointer*)((char*)obj + sizeof (MonoObject));
4244 memset ((char*)obj + sizeof (MonoObject), 0, vtable->klass->instance_size - sizeof (MonoObject));
4251 mono_object_new_ptrfree_box (MonoVTable *vtable)
4254 ALLOC_PTRFREE (obj, vtable, vtable->klass->instance_size);
4255 /* the object will be boxed right away, no need to memzero it */
4260 * mono_class_get_allocation_ftn:
4262 * @for_box: the object will be used for boxing
4263 * @pass_size_in_words:
4265 * Return the allocation function appropriate for the given class.
4269 mono_class_get_allocation_ftn (MonoVTable *vtable, gboolean for_box, gboolean *pass_size_in_words)
4271 *pass_size_in_words = FALSE;
4273 if (!(mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS))
4274 profile_allocs = FALSE;
4276 if (vtable->klass->has_finalize || vtable->klass->marshalbyref || (mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS))
4277 return mono_object_new_specific;
4279 if (!vtable->klass->has_references) {
4280 //g_print ("ptrfree for %s.%s\n", vtable->klass->name_space, vtable->klass->name);
4282 return mono_object_new_ptrfree_box;
4283 return mono_object_new_ptrfree;
4286 if (vtable->gc_descr != GC_NO_DESCRIPTOR) {
4288 return mono_object_new_fast;
4291 * FIXME: This is actually slower than mono_object_new_fast, because
4292 * of the overhead of parameter passing.
4295 *pass_size_in_words = TRUE;
4296 #ifdef GC_REDIRECT_TO_LOCAL
4297 return GC_local_gcj_fast_malloc;
4299 return GC_gcj_fast_malloc;
4304 return mono_object_new_specific;
4308 * mono_object_new_from_token:
4309 * @image: Context where the type_token is hosted
4310 * @token: a token of the type that we want to create
4312 * Returns: A newly created object whose definition is
4313 * looked up using @token in the @image image
4316 mono_object_new_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
4320 class = mono_class_get (image, token);
4322 return mono_object_new (domain, class);
4327 * mono_object_clone:
4328 * @obj: the object to clone
4330 * Returns: A newly created object who is a shallow copy of @obj
4333 mono_object_clone (MonoObject *obj)
4336 int size = obj->vtable->klass->instance_size;
4338 o = mono_object_allocate (size, obj->vtable);
4340 if (obj->vtable->klass->has_references) {
4341 mono_gc_wbarrier_object_copy (o, obj);
4343 int size = obj->vtable->klass->instance_size;
4344 /* do not copy the sync state */
4345 memcpy ((char*)o + sizeof (MonoObject), (char*)obj + sizeof (MonoObject), size - sizeof (MonoObject));
4347 if (G_UNLIKELY (profile_allocs))
4348 mono_profiler_allocation (o, obj->vtable->klass);
4350 if (obj->vtable->klass->has_finalize)
4351 mono_object_register_finalizer (o);
4356 * mono_array_full_copy:
4357 * @src: source array to copy
4358 * @dest: destination array
4360 * Copies the content of one array to another with exactly the same type and size.
4363 mono_array_full_copy (MonoArray *src, MonoArray *dest)
4366 MonoClass *klass = src->obj.vtable->klass;
4368 MONO_ARCH_SAVE_REGS;
4370 g_assert (klass == dest->obj.vtable->klass);
4372 size = mono_array_length (src);
4373 g_assert (size == mono_array_length (dest));
4374 size *= mono_array_element_size (klass);
4376 if (klass->element_class->valuetype) {
4377 if (klass->element_class->has_references)
4378 mono_value_copy_array (dest, 0, mono_array_addr_with_size (src, 0, 0), mono_array_length (src));
4380 memcpy (&dest->vector, &src->vector, size);
4382 mono_array_memcpy_refs (dest, 0, src, 0, mono_array_length (src));
4385 memcpy (&dest->vector, &src->vector, size);
4390 * mono_array_clone_in_domain:
4391 * @domain: the domain in which the array will be cloned into
4392 * @array: the array to clone
4394 * This routine returns a copy of the array that is hosted on the
4395 * specified MonoDomain.
4398 mono_array_clone_in_domain (MonoDomain *domain, MonoArray *array)
4403 MonoClass *klass = array->obj.vtable->klass;
4405 MONO_ARCH_SAVE_REGS;
4407 if (array->bounds == NULL) {
4408 size = mono_array_length (array);
4409 o = mono_array_new_full (domain, klass, &size, NULL);
4411 size *= mono_array_element_size (klass);
4413 if (klass->element_class->valuetype) {
4414 if (klass->element_class->has_references)
4415 mono_value_copy_array (o, 0, mono_array_addr_with_size (array, 0, 0), mono_array_length (array));
4417 memcpy (&o->vector, &array->vector, size);
4419 mono_array_memcpy_refs (o, 0, array, 0, mono_array_length (array));
4422 memcpy (&o->vector, &array->vector, size);
4427 sizes = alloca (klass->rank * sizeof(intptr_t) * 2);
4428 size = mono_array_element_size (klass);
4429 for (i = 0; i < klass->rank; ++i) {
4430 sizes [i] = array->bounds [i].length;
4431 size *= array->bounds [i].length;
4432 sizes [i + klass->rank] = array->bounds [i].lower_bound;
4434 o = mono_array_new_full (domain, klass, sizes, (intptr_t*)sizes + klass->rank);
4436 if (klass->element_class->valuetype) {
4437 if (klass->element_class->has_references)
4438 mono_value_copy_array (o, 0, mono_array_addr_with_size (array, 0, 0), mono_array_length (array));
4440 memcpy (&o->vector, &array->vector, size);
4442 mono_array_memcpy_refs (o, 0, array, 0, mono_array_length (array));
4445 memcpy (&o->vector, &array->vector, size);
4453 * @array: the array to clone
4455 * Returns: A newly created array who is a shallow copy of @array
4458 mono_array_clone (MonoArray *array)
4460 return mono_array_clone_in_domain (((MonoObject *)array)->vtable->domain, array);
4463 /* helper macros to check for overflow when calculating the size of arrays */
4464 #ifdef MONO_BIG_ARRAYS
4465 #define MYGUINT64_MAX 0x0000FFFFFFFFFFFFUL
4466 #define MYGUINT_MAX MYGUINT64_MAX
4467 #define CHECK_ADD_OVERFLOW_UN(a,b) \
4468 (G_UNLIKELY ((guint64)(MYGUINT64_MAX) - (guint64)(b) < (guint64)(a)))
4469 #define CHECK_MUL_OVERFLOW_UN(a,b) \
4470 (G_UNLIKELY (((guint64)(a) > 0) && ((guint64)(b) > 0) && \
4471 ((guint64)(b) > ((MYGUINT64_MAX) / (guint64)(a)))))
4473 #define MYGUINT32_MAX 4294967295U
4474 #define MYGUINT_MAX MYGUINT32_MAX
4475 #define CHECK_ADD_OVERFLOW_UN(a,b) \
4476 (G_UNLIKELY ((guint32)(MYGUINT32_MAX) - (guint32)(b) < (guint32)(a)))
4477 #define CHECK_MUL_OVERFLOW_UN(a,b) \
4478 (G_UNLIKELY (((guint32)(a) > 0) && ((guint32)(b) > 0) && \
4479 ((guint32)(b) > ((MYGUINT32_MAX) / (guint32)(a)))))
4483 mono_array_calc_byte_len (MonoClass *class, uintptr_t len, uintptr_t *res)
4487 byte_len = mono_array_element_size (class);
4488 if (CHECK_MUL_OVERFLOW_UN (byte_len, len))
4491 if (CHECK_ADD_OVERFLOW_UN (byte_len, sizeof (MonoArray)))
4493 byte_len += sizeof (MonoArray);
4501 * mono_array_new_full:
4502 * @domain: domain where the object is created
4503 * @array_class: array class
4504 * @lengths: lengths for each dimension in the array
4505 * @lower_bounds: lower bounds for each dimension in the array (may be NULL)
4507 * This routine creates a new array objects with the given dimensions,
4508 * lower bounds and type.
4511 mono_array_new_full (MonoDomain *domain, MonoClass *array_class, uintptr_t *lengths, intptr_t *lower_bounds)
4513 uintptr_t byte_len, len, bounds_size;
4516 MonoArrayBounds *bounds;
4520 if (!array_class->inited)
4521 mono_class_init (array_class);
4525 /* A single dimensional array with a 0 lower bound is the same as an szarray */
4526 if (array_class->rank == 1 && ((array_class->byval_arg.type == MONO_TYPE_SZARRAY) || (lower_bounds && lower_bounds [0] == 0))) {
4528 if (len > MONO_ARRAY_MAX_INDEX)//MONO_ARRAY_MAX_INDEX
4532 bounds_size = sizeof (MonoArrayBounds) * array_class->rank;
4534 for (i = 0; i < array_class->rank; ++i) {
4535 if (lengths [i] > MONO_ARRAY_MAX_INDEX) //MONO_ARRAY_MAX_INDEX
4537 if (CHECK_MUL_OVERFLOW_UN (len, lengths [i]))
4538 mono_gc_out_of_memory (MONO_ARRAY_MAX_SIZE);
4543 if (!mono_array_calc_byte_len (array_class, len, &byte_len))
4544 mono_gc_out_of_memory (MONO_ARRAY_MAX_SIZE);
4548 if (CHECK_ADD_OVERFLOW_UN (byte_len, 3))
4549 mono_gc_out_of_memory (MONO_ARRAY_MAX_SIZE);
4550 byte_len = (byte_len + 3) & ~3;
4551 if (CHECK_ADD_OVERFLOW_UN (byte_len, bounds_size))
4552 mono_gc_out_of_memory (MONO_ARRAY_MAX_SIZE);
4553 byte_len += bounds_size;
4556 * Following three lines almost taken from mono_object_new ():
4557 * they need to be kept in sync.
4559 vtable = mono_class_vtable_full (domain, array_class, TRUE);
4560 #ifndef HAVE_SGEN_GC
4561 if (!array_class->has_references) {
4562 o = mono_object_allocate_ptrfree (byte_len, vtable);
4563 #if NEED_TO_ZERO_PTRFREE
4564 memset ((char*)o + sizeof (MonoObject), 0, byte_len - sizeof (MonoObject));
4566 } else if (vtable->gc_descr != GC_NO_DESCRIPTOR) {
4567 o = mono_object_allocate_spec (byte_len, vtable);
4569 o = mono_object_allocate (byte_len, vtable);
4572 array = (MonoArray*)o;
4573 array->max_length = len;
4576 bounds = (MonoArrayBounds*)((char*)array + byte_len - bounds_size);
4577 array->bounds = bounds;
4581 o = mono_gc_alloc_array (vtable, byte_len, len, bounds_size);
4583 o = mono_gc_alloc_vector (vtable, byte_len, len);
4584 array = (MonoArray*)o;
4585 mono_stats.new_object_count++;
4587 bounds = array->bounds;
4591 for (i = 0; i < array_class->rank; ++i) {
4592 bounds [i].length = lengths [i];
4594 bounds [i].lower_bound = lower_bounds [i];
4598 if (G_UNLIKELY (profile_allocs))
4599 mono_profiler_allocation (o, array_class);
4606 * @domain: domain where the object is created
4607 * @eclass: element class
4608 * @n: number of array elements
4610 * This routine creates a new szarray with @n elements of type @eclass.
4613 mono_array_new (MonoDomain *domain, MonoClass *eclass, uintptr_t n)
4617 MONO_ARCH_SAVE_REGS;
4619 ac = mono_array_class_get (eclass, 1);
4622 return mono_array_new_specific (mono_class_vtable_full (domain, ac, TRUE), n);
4626 * mono_array_new_specific:
4627 * @vtable: a vtable in the appropriate domain for an initialized class
4628 * @n: number of array elements
4630 * This routine is a fast alternative to mono_array_new() for code which
4631 * can be sure about the domain it operates in.
4634 mono_array_new_specific (MonoVTable *vtable, uintptr_t n)
4640 MONO_ARCH_SAVE_REGS;
4642 if (G_UNLIKELY (n > MONO_ARRAY_MAX_INDEX)) {
4647 if (!mono_array_calc_byte_len (vtable->klass, n, &byte_len)) {
4648 mono_gc_out_of_memory (MONO_ARRAY_MAX_SIZE);
4651 #ifndef HAVE_SGEN_GC
4652 if (!vtable->klass->has_references) {
4653 o = mono_object_allocate_ptrfree (byte_len, vtable);
4654 #if NEED_TO_ZERO_PTRFREE
4655 ((MonoArray*)o)->bounds = NULL;
4656 memset ((char*)o + sizeof (MonoObject), 0, byte_len - sizeof (MonoObject));
4658 } else if (vtable->gc_descr != GC_NO_DESCRIPTOR) {
4659 o = mono_object_allocate_spec (byte_len, vtable);
4661 /* printf("ARRAY: %s.%s.\n", vtable->klass->name_space, vtable->klass->name); */
4662 o = mono_object_allocate (byte_len, vtable);
4665 ao = (MonoArray *)o;
4668 o = mono_gc_alloc_vector (vtable, byte_len, n);
4670 mono_stats.new_object_count++;
4673 if (G_UNLIKELY (profile_allocs))
4674 mono_profiler_allocation (o, vtable->klass);
4680 * mono_string_new_utf16:
4681 * @text: a pointer to an utf16 string
4682 * @len: the length of the string
4684 * Returns: A newly created string object which contains @text.
4687 mono_string_new_utf16 (MonoDomain *domain, const guint16 *text, gint32 len)
4691 s = mono_string_new_size (domain, len);
4692 g_assert (s != NULL);
4694 memcpy (mono_string_chars (s), text, len * 2);
4700 * mono_string_new_size:
4701 * @text: a pointer to an utf16 string
4702 * @len: the length of the string
4704 * Returns: A newly created string object of @len
4707 mono_string_new_size (MonoDomain *domain, gint32 len)
4711 size_t size = (sizeof (MonoString) + ((len + 1) * 2));
4713 /* overflow ? can't fit it, can't allocate it! */
4715 mono_gc_out_of_memory (-1);
4717 vtable = mono_class_vtable (domain, mono_defaults.string_class);
4720 #ifndef HAVE_SGEN_GC
4721 s = mono_object_allocate_ptrfree (size, vtable);
4725 s = mono_gc_alloc_string (vtable, size, len);
4727 #if NEED_TO_ZERO_PTRFREE
4730 if (G_UNLIKELY (profile_allocs))
4731 mono_profiler_allocation ((MonoObject*)s, mono_defaults.string_class);
4737 * mono_string_new_len:
4738 * @text: a pointer to an utf8 string
4739 * @length: number of bytes in @text to consider
4741 * Returns: A newly created string object which contains @text.
4744 mono_string_new_len (MonoDomain *domain, const char *text, guint length)
4746 GError *error = NULL;
4747 MonoString *o = NULL;
4749 glong items_written;
4751 ut = g_utf8_to_utf16 (text, length, NULL, &items_written, &error);
4754 o = mono_string_new_utf16 (domain, ut, items_written);
4756 g_error_free (error);
4765 * @text: a pointer to an utf8 string
4767 * Returns: A newly created string object which contains @text.
4770 mono_string_new (MonoDomain *domain, const char *text)
4772 GError *error = NULL;
4773 MonoString *o = NULL;
4775 glong items_written;
4780 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
4783 o = mono_string_new_utf16 (domain, ut, items_written);
4785 g_error_free (error);
4788 /*FIXME g_utf8_get_char, g_utf8_next_char and g_utf8_validate are not part of eglib.*/
4793 MonoString *o = NULL;
4795 if (!g_utf8_validate (text, -1, &end))
4798 len = g_utf8_strlen (text, -1);
4799 o = mono_string_new_size (domain, len);
4800 str = mono_string_chars (o);
4802 while (text < end) {
4803 *str++ = g_utf8_get_char (text);
4804 text = g_utf8_next_char (text);
4811 * mono_string_new_wrapper:
4812 * @text: pointer to utf8 characters.
4814 * Helper function to create a string object from @text in the current domain.
4817 mono_string_new_wrapper (const char *text)
4819 MonoDomain *domain = mono_domain_get ();
4821 MONO_ARCH_SAVE_REGS;
4824 return mono_string_new (domain, text);
4831 * @class: the class of the value
4832 * @value: a pointer to the unboxed data
4834 * Returns: A newly created object which contains @value.
4837 mono_value_box (MonoDomain *domain, MonoClass *class, gpointer value)
4843 g_assert (class->valuetype);
4844 if (mono_class_is_nullable (class))
4845 return mono_nullable_box (value, class);
4847 vtable = mono_class_vtable (domain, class);
4850 size = mono_class_instance_size (class);
4851 res = mono_object_new_alloc_specific (vtable);
4852 if (G_UNLIKELY (profile_allocs))
4853 mono_profiler_allocation (res, class);
4855 size = size - sizeof (MonoObject);
4858 g_assert (size == mono_class_value_size (class, NULL));
4859 mono_gc_wbarrier_value_copy ((char *)res + sizeof (MonoObject), value, 1, class);
4861 #if NO_UNALIGNED_ACCESS
4862 memcpy ((char *)res + sizeof (MonoObject), value, size);
4866 *((guint8 *) res + sizeof (MonoObject)) = *(guint8 *) value;
4869 *(guint16 *)((guint8 *) res + sizeof (MonoObject)) = *(guint16 *) value;
4872 *(guint32 *)((guint8 *) res + sizeof (MonoObject)) = *(guint32 *) value;
4875 *(guint64 *)((guint8 *) res + sizeof (MonoObject)) = *(guint64 *) value;
4878 memcpy ((char *)res + sizeof (MonoObject), value, size);
4882 if (class->has_finalize)
4883 mono_object_register_finalizer (res);
4889 * @dest: destination pointer
4890 * @src: source pointer
4891 * @klass: a valuetype class
4893 * Copy a valuetype from @src to @dest. This function must be used
4894 * when @klass contains references fields.
4897 mono_value_copy (gpointer dest, gpointer src, MonoClass *klass)
4899 mono_gc_wbarrier_value_copy (dest, src, 1, klass);
4903 * mono_value_copy_array:
4904 * @dest: destination array
4905 * @dest_idx: index in the @dest array
4906 * @src: source pointer
4907 * @count: number of items
4909 * Copy @count valuetype items from @src to the array @dest at index @dest_idx.
4910 * This function must be used when @klass contains references fields.
4911 * Overlap is handled.
4914 mono_value_copy_array (MonoArray *dest, int dest_idx, gpointer src, int count)
4916 int size = mono_array_element_size (dest->obj.vtable->klass);
4917 char *d = mono_array_addr_with_size (dest, size, dest_idx);
4918 g_assert (size == mono_class_value_size (mono_object_class (dest)->element_class, NULL));
4919 mono_gc_wbarrier_value_copy (d, src, count, mono_object_class (dest)->element_class);
4923 * mono_object_get_domain:
4924 * @obj: object to query
4926 * Returns: the MonoDomain where the object is hosted
4929 mono_object_get_domain (MonoObject *obj)
4931 return mono_object_domain (obj);
4935 * mono_object_get_class:
4936 * @obj: object to query
4938 * Returns: the MonOClass of the object.
4941 mono_object_get_class (MonoObject *obj)
4943 return mono_object_class (obj);
4946 * mono_object_get_size:
4947 * @o: object to query
4949 * Returns: the size, in bytes, of @o
4952 mono_object_get_size (MonoObject* o)
4954 MonoClass* klass = mono_object_class (o);
4955 if (klass == mono_defaults.string_class) {
4956 return sizeof (MonoString) + 2 * mono_string_length ((MonoString*) o) + 2;
4957 } else if (o->vtable->rank) {
4958 MonoArray *array = (MonoArray*)o;
4959 size_t size = sizeof (MonoArray) + mono_array_element_size (klass) * mono_array_length (array);
4960 if (array->bounds) {
4963 size += sizeof (MonoArrayBounds) * o->vtable->rank;
4967 return mono_class_instance_size (klass);
4972 * mono_object_unbox:
4973 * @obj: object to unbox
4975 * Returns: a pointer to the start of the valuetype boxed in this
4978 * This method will assert if the object passed is not a valuetype.
4981 mono_object_unbox (MonoObject *obj)
4983 /* add assert for valuetypes? */
4984 g_assert (obj->vtable->klass->valuetype);
4985 return ((char*)obj) + sizeof (MonoObject);
4989 * mono_object_isinst:
4991 * @klass: a pointer to a class
4993 * Returns: @obj if @obj is derived from @klass
4996 mono_object_isinst (MonoObject *obj, MonoClass *klass)
4999 mono_class_init (klass);
5001 if (klass->marshalbyref || (klass->flags & TYPE_ATTRIBUTE_INTERFACE))
5002 return mono_object_isinst_mbyref (obj, klass);
5007 return mono_class_is_assignable_from (klass, obj->vtable->klass) ? obj : NULL;
5011 mono_object_isinst_mbyref (MonoObject *obj, MonoClass *klass)
5020 if (klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
5021 if (MONO_VTABLE_IMPLEMENTS_INTERFACE (vt, klass->interface_id)) {
5025 /*If the above check fails we are in the slow path of possibly raising an exception. So it's ok to it this way.*/
5026 if (mono_class_has_variant_generic_params (klass) && mono_class_is_assignable_from (klass, obj->vtable->klass))
5029 MonoClass *oklass = vt->klass;
5030 if ((oklass == mono_defaults.transparent_proxy_class))
5031 oklass = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
5033 if ((oklass->idepth >= klass->idepth) && (oklass->supertypes [klass->idepth - 1] == klass))
5037 if (vt->klass == mono_defaults.transparent_proxy_class && ((MonoTransparentProxy *)obj)->custom_type_info)
5039 MonoDomain *domain = mono_domain_get ();
5041 MonoObject *rp = (MonoObject *)((MonoTransparentProxy *)obj)->rp;
5042 MonoClass *rpklass = mono_defaults.iremotingtypeinfo_class;
5043 MonoMethod *im = NULL;
5046 im = mono_class_get_method_from_name (rpklass, "CanCastTo", -1);
5047 im = mono_object_get_virtual_method (rp, im);
5050 pa [0] = mono_type_get_object (domain, &klass->byval_arg);
5053 res = mono_runtime_invoke (im, rp, pa, NULL);
5055 if (*(MonoBoolean *) mono_object_unbox(res)) {
5056 /* Update the vtable of the remote type, so it can safely cast to this new type */
5057 mono_upgrade_remote_class (domain, obj, klass);
5066 * mono_object_castclass_mbyref:
5068 * @klass: a pointer to a class
5070 * Returns: @obj if @obj is derived from @klass, throws an exception otherwise
5073 mono_object_castclass_mbyref (MonoObject *obj, MonoClass *klass)
5075 if (!obj) return NULL;
5076 if (mono_object_isinst_mbyref (obj, klass)) return obj;
5078 mono_raise_exception (mono_exception_from_name (mono_defaults.corlib,
5080 "InvalidCastException"));
5085 MonoDomain *orig_domain;
5091 str_lookup (MonoDomain *domain, gpointer user_data)
5093 LDStrInfo *info = user_data;
5094 if (info->res || domain == info->orig_domain)
5096 info->res = mono_g_hash_table_lookup (domain->ldstr_table, info->ins);
5102 mono_string_get_pinned (MonoString *str)
5106 size = sizeof (MonoString) + 2 * (mono_string_length (str) + 1);
5107 news = mono_gc_alloc_pinned_obj (((MonoObject*)str)->vtable, size);
5108 memcpy (mono_string_chars (news), mono_string_chars (str), mono_string_length (str) * 2);
5109 news->length = mono_string_length (str);
5114 #define mono_string_get_pinned(str) (str)
5118 mono_string_is_interned_lookup (MonoString *str, int insert)
5120 MonoGHashTable *ldstr_table;
5124 domain = ((MonoObject *)str)->vtable->domain;
5125 ldstr_table = domain->ldstr_table;
5127 if ((res = mono_g_hash_table_lookup (ldstr_table, str))) {
5132 str = mono_string_get_pinned (str);
5133 mono_g_hash_table_insert (ldstr_table, str, str);
5137 LDStrInfo ldstr_info;
5138 ldstr_info.orig_domain = domain;
5139 ldstr_info.ins = str;
5140 ldstr_info.res = NULL;
5142 mono_domain_foreach (str_lookup, &ldstr_info);
5143 if (ldstr_info.res) {
5145 * the string was already interned in some other domain:
5146 * intern it in the current one as well.
5148 mono_g_hash_table_insert (ldstr_table, str, str);
5158 * mono_string_is_interned:
5159 * @o: String to probe
5161 * Returns whether the string has been interned.
5164 mono_string_is_interned (MonoString *o)
5166 return mono_string_is_interned_lookup (o, FALSE);
5170 * mono_string_intern:
5171 * @o: String to intern
5173 * Interns the string passed.
5174 * Returns: The interned string.
5177 mono_string_intern (MonoString *str)
5179 return mono_string_is_interned_lookup (str, TRUE);
5184 * @domain: the domain where the string will be used.
5185 * @image: a metadata context
5186 * @idx: index into the user string table.
5188 * Implementation for the ldstr opcode.
5189 * Returns: a loaded string from the @image/@idx combination.
5192 mono_ldstr (MonoDomain *domain, MonoImage *image, guint32 idx)
5194 MONO_ARCH_SAVE_REGS;
5196 if (image->dynamic) {
5197 MonoString *str = mono_lookup_dynamic_token (image, MONO_TOKEN_STRING | idx, NULL);
5200 if (!mono_verifier_verify_string_signature (image, idx, NULL))
5201 return NULL; /*FIXME we should probably be raising an exception here*/
5202 return mono_ldstr_metadata_sig (domain, mono_metadata_user_string (image, idx));
5207 * mono_ldstr_metadata_sig
5208 * @domain: the domain for the string
5209 * @sig: the signature of a metadata string
5211 * Returns: a MonoString for a string stored in the metadata
5214 mono_ldstr_metadata_sig (MonoDomain *domain, const char* sig)
5216 const char *str = sig;
5217 MonoString *o, *interned;
5220 len2 = mono_metadata_decode_blob_size (str, &str);
5223 o = mono_string_new_utf16 (domain, (guint16*)str, len2);
5224 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
5227 guint16 *p2 = (guint16*)mono_string_chars (o);
5228 for (i = 0; i < len2; ++i) {
5229 *p2 = GUINT16_FROM_LE (*p2);
5235 if ((interned = mono_g_hash_table_lookup (domain->ldstr_table, o))) {
5237 /* o will get garbage collected */
5241 o = mono_string_get_pinned (o);
5242 mono_g_hash_table_insert (domain->ldstr_table, o, o);
5249 * mono_string_to_utf8:
5250 * @s: a System.String
5252 * Return the UTF8 representation for @s.
5253 * the resulting buffer nedds to be freed with g_free().
5255 * @deprecated Use mono_string_to_utf8_checked to avoid having an exception arbritraly raised.
5258 mono_string_to_utf8 (MonoString *s)
5261 char *result = mono_string_to_utf8_checked (s, &error);
5263 if (!mono_error_ok (&error))
5264 mono_error_raise_exception (&error);
5269 mono_string_to_utf8_checked (MonoString *s, MonoError *error)
5273 GError *gerror = NULL;
5275 mono_error_init (error);
5281 return g_strdup ("");
5283 as = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &written, &gerror);
5285 mono_error_set_argument (error, "string", "%s", gerror->message);
5286 g_error_free (gerror);
5289 /* g_utf16_to_utf8 may not be able to complete the convertion (e.g. NULL values were found, #335488) */
5290 if (s->length > written) {
5291 /* allocate the total length and copy the part of the string that has been converted */
5292 char *as2 = g_malloc0 (s->length);
5293 memcpy (as2, as, written);
5302 * mono_string_to_utf16:
5305 * Return an null-terminated array of the utf-16 chars
5306 * contained in @s. The result must be freed with g_free().
5307 * This is a temporary helper until our string implementation
5308 * is reworked to always include the null terminating char.
5311 mono_string_to_utf16 (MonoString *s)
5318 as = g_malloc ((s->length * 2) + 2);
5319 as [(s->length * 2)] = '\0';
5320 as [(s->length * 2) + 1] = '\0';
5323 return (gunichar2 *)(as);
5326 memcpy (as, mono_string_chars(s), s->length * 2);
5327 return (gunichar2 *)(as);
5331 * mono_string_from_utf16:
5332 * @data: the UTF16 string (LPWSTR) to convert
5334 * Converts a NULL terminated UTF16 string (LPWSTR) to a MonoString.
5336 * Returns: a MonoString.
5339 mono_string_from_utf16 (gunichar2 *data)
5341 MonoDomain *domain = mono_domain_get ();
5347 while (data [len]) len++;
5349 return mono_string_new_utf16 (domain, data, len);
5354 mono_string_to_utf8_internal (MonoMemPool *mp, MonoImage *image, MonoString *s, MonoError *error)
5360 r = mono_string_to_utf8_checked (s, error);
5361 if (!mono_error_ok (error))
5367 len = strlen (r) + 1;
5369 mp_s = mono_mempool_alloc (mp, len);
5371 mp_s = mono_image_alloc (image, len);
5373 memcpy (mp_s, r, len);
5381 * mono_string_to_utf8_image:
5382 * @s: a System.String
5384 * Same as mono_string_to_utf8, but allocate the string from the image mempool.
5387 mono_string_to_utf8_image (MonoImage *image, MonoString *s, MonoError *error)
5389 return mono_string_to_utf8_internal (NULL, image, s, error);
5393 * mono_string_to_utf8_mp:
5394 * @s: a System.String
5396 * Same as mono_string_to_utf8, but allocate the string from a mempool.
5399 mono_string_to_utf8_mp (MonoMemPool *mp, MonoString *s, MonoError *error)
5401 return mono_string_to_utf8_internal (mp, NULL, s, error);
5405 default_ex_handler (MonoException *ex)
5407 MonoObject *o = (MonoObject*)ex;
5408 g_error ("Exception %s.%s raised in C code", o->vtable->klass->name_space, o->vtable->klass->name);
5412 static MonoExceptionFunc ex_handler = default_ex_handler;
5415 * mono_install_handler:
5416 * @func: exception handler
5418 * This is an internal JIT routine used to install the handler for exceptions
5422 mono_install_handler (MonoExceptionFunc func)
5424 ex_handler = func? func: default_ex_handler;
5428 * mono_raise_exception:
5429 * @ex: exception object
5431 * Signal the runtime that the exception @ex has been raised in unmanaged code.
5434 mono_raise_exception (MonoException *ex)
5437 * NOTE: Do NOT annotate this function with G_GNUC_NORETURN, since
5438 * that will cause gcc to omit the function epilog, causing problems when
5439 * the JIT tries to walk the stack, since the return address on the stack
5440 * will point into the next function in the executable, not this one.
5443 if (((MonoObject*)ex)->vtable->klass == mono_defaults.threadabortexception_class) {
5444 MonoInternalThread *thread = mono_thread_internal_current ();
5445 g_assert (ex->object.vtable->domain == mono_domain_get ());
5446 MONO_OBJECT_SETREF (thread, abort_exc, ex);
5453 * mono_wait_handle_new:
5454 * @domain: Domain where the object will be created
5455 * @handle: Handle for the wait handle
5457 * Returns: A new MonoWaitHandle created in the given domain for the given handle
5460 mono_wait_handle_new (MonoDomain *domain, HANDLE handle)
5462 MonoWaitHandle *res;
5463 gpointer params [1];
5464 static MonoMethod *handle_set;
5466 res = (MonoWaitHandle *)mono_object_new (domain, mono_defaults.manualresetevent_class);
5468 /* Even though this method is virtual, it's safe to invoke directly, since the object type matches. */
5470 handle_set = mono_class_get_property_from_name (mono_defaults.manualresetevent_class, "Handle")->set;
5472 params [0] = &handle;
5473 mono_runtime_invoke (handle_set, res, params, NULL);
5479 mono_wait_handle_get_handle (MonoWaitHandle *handle)
5481 static MonoClassField *f_os_handle;
5482 static MonoClassField *f_safe_handle;
5484 if (!f_os_handle && !f_safe_handle) {
5485 f_os_handle = mono_class_get_field_from_name (mono_defaults.manualresetevent_class, "os_handle");
5486 f_safe_handle = mono_class_get_field_from_name (mono_defaults.manualresetevent_class, "safe_wait_handle");
5491 mono_field_get_value ((MonoObject*)handle, f_os_handle, &retval);
5495 mono_field_get_value ((MonoObject*)handle, f_safe_handle, &sh);
5502 mono_runtime_capture_context (MonoDomain *domain)
5504 RuntimeInvokeFunction runtime_invoke;
5506 if (!domain->capture_context_runtime_invoke || !domain->capture_context_method) {
5507 MonoMethod *method = mono_get_context_capture_method ();
5508 MonoMethod *wrapper;
5511 wrapper = mono_marshal_get_runtime_invoke (method, FALSE);
5512 domain->capture_context_runtime_invoke = mono_compile_method (wrapper);
5513 domain->capture_context_method = mono_compile_method (method);
5516 runtime_invoke = domain->capture_context_runtime_invoke;
5518 return runtime_invoke (NULL, NULL, NULL, domain->capture_context_method);
5521 * mono_async_result_new:
5522 * @domain:domain where the object will be created.
5523 * @handle: wait handle.
5524 * @state: state to pass to AsyncResult
5525 * @data: C closure data.
5527 * Creates a new MonoAsyncResult (AsyncResult C# class) in the given domain.
5528 * If the handle is not null, the handle is initialized to a MonOWaitHandle.
5532 mono_async_result_new (MonoDomain *domain, HANDLE handle, MonoObject *state, gpointer data, MonoObject *object_data)
5534 MonoAsyncResult *res = (MonoAsyncResult *)mono_object_new (domain, mono_defaults.asyncresult_class);
5535 MonoObject *context = mono_runtime_capture_context (domain);
5536 /* we must capture the execution context from the original thread */
5538 MONO_OBJECT_SETREF (res, execution_context, context);
5539 /* note: result may be null if the flow is suppressed */
5543 MONO_OBJECT_SETREF (res, object_data, object_data);
5544 MONO_OBJECT_SETREF (res, async_state, state);
5546 MONO_OBJECT_SETREF (res, handle, (MonoObject *) mono_wait_handle_new (domain, handle));
5548 res->sync_completed = FALSE;
5549 res->completed = FALSE;
5555 mono_message_init (MonoDomain *domain,
5556 MonoMethodMessage *this,
5557 MonoReflectionMethod *method,
5558 MonoArray *out_args)
5560 static MonoClass *object_array_klass;
5561 static MonoClass *byte_array_klass;
5562 static MonoClass *string_array_klass;
5563 MonoMethodSignature *sig = mono_method_signature (method->method);
5569 if (!object_array_klass) {
5572 klass = mono_array_class_get (mono_defaults.object_class, 1);
5575 mono_memory_barrier ();
5576 object_array_klass = klass;
5578 klass = mono_array_class_get (mono_defaults.byte_class, 1);
5581 mono_memory_barrier ();
5582 byte_array_klass = klass;
5584 klass = mono_array_class_get (mono_defaults.string_class, 1);
5587 mono_memory_barrier ();
5588 string_array_klass = klass;
5591 MONO_OBJECT_SETREF (this, method, method);
5593 MONO_OBJECT_SETREF (this, args, mono_array_new_specific (mono_class_vtable (domain, object_array_klass), sig->param_count));
5594 MONO_OBJECT_SETREF (this, arg_types, mono_array_new_specific (mono_class_vtable (domain, byte_array_klass), sig->param_count));
5595 this->async_result = NULL;
5596 this->call_type = CallType_Sync;
5598 names = g_new (char *, sig->param_count);
5599 mono_method_get_param_names (method->method, (const char **) names);
5600 MONO_OBJECT_SETREF (this, names, mono_array_new_specific (mono_class_vtable (domain, string_array_klass), sig->param_count));
5602 for (i = 0; i < sig->param_count; i++) {
5603 name = mono_string_new (domain, names [i]);
5604 mono_array_setref (this->names, i, name);
5608 for (i = 0, j = 0; i < sig->param_count; i++) {
5609 if (sig->params [i]->byref) {
5611 MonoObject* arg = mono_array_get (out_args, gpointer, j);
5612 mono_array_setref (this->args, i, arg);
5616 if (!(sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT))
5620 if (sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT)
5623 mono_array_set (this->arg_types, guint8, i, arg_type);
5628 * mono_remoting_invoke:
5629 * @real_proxy: pointer to a RealProxy object
5630 * @msg: The MonoMethodMessage to execute
5631 * @exc: used to store exceptions
5632 * @out_args: used to store output arguments
5634 * This is used to call RealProxy::Invoke(). RealProxy::Invoke() returns an
5635 * IMessage interface and it is not trivial to extract results from there. So
5636 * we call an helper method PrivateInvoke instead of calling
5637 * RealProxy::Invoke() directly.
5639 * Returns: the result object.
5642 mono_remoting_invoke (MonoObject *real_proxy, MonoMethodMessage *msg,
5643 MonoObject **exc, MonoArray **out_args)
5645 MonoMethod *im = real_proxy->vtable->domain->private_invoke_method;
5648 /*static MonoObject *(*invoke) (gpointer, gpointer, MonoObject **, MonoArray **) = NULL;*/
5651 im = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "PrivateInvoke", 4);
5653 real_proxy->vtable->domain->private_invoke_method = im;
5656 pa [0] = real_proxy;
5661 return mono_runtime_invoke (im, NULL, pa, exc);
5665 mono_message_invoke (MonoObject *target, MonoMethodMessage *msg,
5666 MonoObject **exc, MonoArray **out_args)
5668 static MonoClass *object_array_klass;
5671 MonoMethodSignature *sig;
5673 int i, j, outarg_count = 0;
5675 if (target && target->vtable->klass == mono_defaults.transparent_proxy_class) {
5677 MonoTransparentProxy* tp = (MonoTransparentProxy *)target;
5678 if (tp->remote_class->proxy_class->contextbound && tp->rp->context == (MonoObject *) mono_context_get ()) {
5679 target = tp->rp->unwrapped_server;
5681 return mono_remoting_invoke ((MonoObject *)tp->rp, msg, exc, out_args);
5685 domain = mono_domain_get ();
5686 method = msg->method->method;
5687 sig = mono_method_signature (method);
5689 for (i = 0; i < sig->param_count; i++) {
5690 if (sig->params [i]->byref)
5694 if (!object_array_klass) {
5697 klass = mono_array_class_get (mono_defaults.object_class, 1);
5700 mono_memory_barrier ();
5701 object_array_klass = klass;
5704 /* FIXME: GC ensure we insert a write barrier for out_args, maybe in the caller? */
5705 *out_args = mono_array_new_specific (mono_class_vtable (domain, object_array_klass), outarg_count);
5708 ret = mono_runtime_invoke_array (method, method->klass->valuetype? mono_object_unbox (target): target, msg->args, exc);
5710 for (i = 0, j = 0; i < sig->param_count; i++) {
5711 if (sig->params [i]->byref) {
5713 arg = mono_array_get (msg->args, gpointer, i);
5714 mono_array_setref (*out_args, j, arg);
5723 * mono_print_unhandled_exception:
5724 * @exc: The exception
5726 * Prints the unhandled exception.
5729 mono_print_unhandled_exception (MonoObject *exc)
5732 char *message = (char *) "";
5736 gboolean free_message = FALSE;
5738 if (mono_object_isinst (exc, mono_defaults.exception_class)) {
5739 klass = exc->vtable->klass;
5741 while (klass && method == NULL) {
5742 method = mono_class_get_method_from_name_flags (klass, "ToString", 0, METHOD_ATTRIBUTE_VIRTUAL | METHOD_ATTRIBUTE_PUBLIC);
5744 klass = klass->parent;
5749 str = (MonoString *) mono_runtime_invoke (method, exc, NULL, NULL);
5751 message = mono_string_to_utf8_checked (str, &error);
5752 if (!mono_error_ok (&error)) {
5753 mono_error_cleanup (&error);
5754 message = (char *)"";
5756 free_message = TRUE;
5762 * g_printerr ("\nUnhandled Exception: %s.%s: %s\n", exc->vtable->klass->name_space,
5763 * exc->vtable->klass->name, message);
5765 g_printerr ("\nUnhandled Exception: %s\n", message);
5772 * mono_delegate_ctor:
5773 * @this: pointer to an uninitialized delegate object
5774 * @target: target object
5775 * @addr: pointer to native code
5778 * Initialize a delegate and sets a specific method, not the one
5779 * associated with addr. This is useful when sharing generic code.
5780 * In that case addr will most probably not be associated with the
5781 * correct instantiation of the method.
5784 mono_delegate_ctor_with_method (MonoObject *this, MonoObject *target, gpointer addr, MonoMethod *method)
5786 MonoDelegate *delegate = (MonoDelegate *)this;
5793 delegate->method = method;
5795 class = this->vtable->klass;
5796 mono_stats.delegate_creations++;
5798 if (target && target->vtable->klass == mono_defaults.transparent_proxy_class) {
5800 method = mono_marshal_get_remoting_invoke (method);
5801 delegate->method_ptr = mono_compile_method (method);
5802 MONO_OBJECT_SETREF (delegate, target, target);
5803 } else if (method && mono_method_signature (method)->hasthis && method->klass->valuetype) {
5804 method = mono_marshal_get_unbox_wrapper (method);
5805 delegate->method_ptr = mono_compile_method (method);
5806 MONO_OBJECT_SETREF (delegate, target, target);
5808 delegate->method_ptr = addr;
5809 MONO_OBJECT_SETREF (delegate, target, target);
5812 delegate->invoke_impl = arch_create_delegate_trampoline (delegate->object.vtable->klass);
5816 * mono_delegate_ctor:
5817 * @this: pointer to an uninitialized delegate object
5818 * @target: target object
5819 * @addr: pointer to native code
5821 * This is used to initialize a delegate.
5824 mono_delegate_ctor (MonoObject *this, MonoObject *target, gpointer addr)
5826 MonoDomain *domain = mono_domain_get ();
5828 MonoMethod *method = NULL;
5832 if ((ji = mono_jit_info_table_find (domain, mono_get_addr_from_ftnptr (addr)))) {
5833 method = ji->method;
5834 g_assert (!method->klass->generic_container);
5837 mono_delegate_ctor_with_method (this, target, addr, method);
5841 * mono_method_call_message_new:
5842 * @method: method to encapsulate
5843 * @params: parameters to the method
5844 * @invoke: optional, delegate invoke.
5845 * @cb: async callback delegate.
5846 * @state: state passed to the async callback.
5848 * Translates arguments pointers into a MonoMethodMessage.
5851 mono_method_call_message_new (MonoMethod *method, gpointer *params, MonoMethod *invoke,
5852 MonoDelegate **cb, MonoObject **state)
5854 MonoDomain *domain = mono_domain_get ();
5855 MonoMethodSignature *sig = mono_method_signature (method);
5856 MonoMethodMessage *msg;
5859 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
5862 mono_message_init (domain, msg, mono_method_get_object (domain, invoke, NULL), NULL);
5863 count = sig->param_count - 2;
5865 mono_message_init (domain, msg, mono_method_get_object (domain, method, NULL), NULL);
5866 count = sig->param_count;
5869 for (i = 0; i < count; i++) {
5874 if (sig->params [i]->byref)
5875 vpos = *((gpointer *)params [i]);
5879 type = sig->params [i]->type;
5880 class = mono_class_from_mono_type (sig->params [i]);
5882 if (class->valuetype)
5883 arg = mono_value_box (domain, class, vpos);
5885 arg = *((MonoObject **)vpos);
5887 mono_array_setref (msg->args, i, arg);
5890 if (cb != NULL && state != NULL) {
5891 *cb = *((MonoDelegate **)params [i]);
5893 *state = *((MonoObject **)params [i]);
5900 * mono_method_return_message_restore:
5902 * Restore results from message based processing back to arguments pointers
5905 mono_method_return_message_restore (MonoMethod *method, gpointer *params, MonoArray *out_args)
5907 MonoMethodSignature *sig = mono_method_signature (method);
5908 int i, j, type, size, out_len;
5910 if (out_args == NULL)
5912 out_len = mono_array_length (out_args);
5916 for (i = 0, j = 0; i < sig->param_count; i++) {
5917 MonoType *pt = sig->params [i];
5922 mono_raise_exception (mono_get_exception_execution_engine ("The proxy call returned an incorrect number of output arguments"));
5924 arg = mono_array_get (out_args, gpointer, j);
5927 g_assert (type != MONO_TYPE_VOID);
5929 if (MONO_TYPE_IS_REFERENCE (pt)) {
5930 mono_gc_wbarrier_generic_store (*((MonoObject ***)params [i]), (MonoObject *)arg);
5933 MonoClass *class = ((MonoObject*)arg)->vtable->klass;
5934 size = mono_class_value_size (class, NULL);
5935 if (class->has_references)
5936 mono_gc_wbarrier_value_copy (*((gpointer *)params [i]), arg + sizeof (MonoObject), 1, class);
5938 memcpy (*((gpointer *)params [i]), arg + sizeof (MonoObject), size);
5940 size = mono_class_value_size (mono_class_from_mono_type (pt), NULL);
5941 memset (*((gpointer *)params [i]), 0, size);
5951 * mono_load_remote_field:
5952 * @this: pointer to an object
5953 * @klass: klass of the object containing @field
5954 * @field: the field to load
5955 * @res: a storage to store the result
5957 * This method is called by the runtime on attempts to load fields of
5958 * transparent proxy objects. @this points to such TP, @klass is the class of
5959 * the object containing @field. @res is a storage location which can be
5960 * used to store the result.
5962 * Returns: an address pointing to the value of field.
5965 mono_load_remote_field (MonoObject *this, MonoClass *klass, MonoClassField *field, gpointer *res)
5967 static MonoMethod *getter = NULL;
5968 MonoDomain *domain = mono_domain_get ();
5969 MonoTransparentProxy *tp = (MonoTransparentProxy *) this;
5970 MonoClass *field_class;
5971 MonoMethodMessage *msg;
5972 MonoArray *out_args;
5976 g_assert (this->vtable->klass == mono_defaults.transparent_proxy_class);
5977 g_assert (res != NULL);
5979 if (tp->remote_class->proxy_class->contextbound && tp->rp->context == (MonoObject *) mono_context_get ()) {
5980 mono_field_get_value (tp->rp->unwrapped_server, field, res);
5985 getter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldGetter", -1);
5989 field_class = mono_class_from_mono_type (field->type);
5991 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
5992 out_args = mono_array_new (domain, mono_defaults.object_class, 1);
5993 mono_message_init (domain, msg, mono_method_get_object (domain, getter, NULL), out_args);
5995 full_name = mono_type_get_full_name (klass);
5996 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
5997 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
6000 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args);
6002 if (exc) mono_raise_exception ((MonoException *)exc);
6004 if (mono_array_length (out_args) == 0)
6007 *res = mono_array_get (out_args, MonoObject *, 0); /* FIXME: GC write abrrier for res */
6009 if (field_class->valuetype) {
6010 return ((char *)*res) + sizeof (MonoObject);
6016 * mono_load_remote_field_new:
6021 * Missing documentation.
6024 mono_load_remote_field_new (MonoObject *this, MonoClass *klass, MonoClassField *field)
6026 static MonoMethod *getter = NULL;
6027 MonoDomain *domain = mono_domain_get ();
6028 MonoTransparentProxy *tp = (MonoTransparentProxy *) this;
6029 MonoClass *field_class;
6030 MonoMethodMessage *msg;
6031 MonoArray *out_args;
6032 MonoObject *exc, *res;
6035 g_assert (this->vtable->klass == mono_defaults.transparent_proxy_class);
6037 field_class = mono_class_from_mono_type (field->type);
6039 if (tp->remote_class->proxy_class->contextbound && tp->rp->context == (MonoObject *) mono_context_get ()) {
6041 if (field_class->valuetype) {
6042 res = mono_object_new (domain, field_class);
6043 val = ((gchar *) res) + sizeof (MonoObject);
6047 mono_field_get_value (tp->rp->unwrapped_server, field, val);
6052 getter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldGetter", -1);
6056 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
6057 out_args = mono_array_new (domain, mono_defaults.object_class, 1);
6059 mono_message_init (domain, msg, mono_method_get_object (domain, getter, NULL), out_args);
6061 full_name = mono_type_get_full_name (klass);
6062 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
6063 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
6066 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args);
6068 if (exc) mono_raise_exception ((MonoException *)exc);
6070 if (mono_array_length (out_args) == 0)
6073 res = mono_array_get (out_args, MonoObject *, 0);
6079 * mono_store_remote_field:
6080 * @this: pointer to an object
6081 * @klass: klass of the object containing @field
6082 * @field: the field to load
6083 * @val: the value/object to store
6085 * This method is called by the runtime on attempts to store fields of
6086 * transparent proxy objects. @this points to such TP, @klass is the class of
6087 * the object containing @field. @val is the new value to store in @field.
6090 mono_store_remote_field (MonoObject *this, MonoClass *klass, MonoClassField *field, gpointer val)
6092 static MonoMethod *setter = NULL;
6093 MonoDomain *domain = mono_domain_get ();
6094 MonoTransparentProxy *tp = (MonoTransparentProxy *) this;
6095 MonoClass *field_class;
6096 MonoMethodMessage *msg;
6097 MonoArray *out_args;
6102 g_assert (this->vtable->klass == mono_defaults.transparent_proxy_class);
6104 field_class = mono_class_from_mono_type (field->type);
6106 if (tp->remote_class->proxy_class->contextbound && tp->rp->context == (MonoObject *) mono_context_get ()) {
6107 if (field_class->valuetype) mono_field_set_value (tp->rp->unwrapped_server, field, val);
6108 else mono_field_set_value (tp->rp->unwrapped_server, field, *((MonoObject **)val));
6113 setter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldSetter", -1);
6117 if (field_class->valuetype)
6118 arg = mono_value_box (domain, field_class, val);
6120 arg = *((MonoObject **)val);
6123 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
6124 mono_message_init (domain, msg, mono_method_get_object (domain, setter, NULL), NULL);
6126 full_name = mono_type_get_full_name (klass);
6127 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
6128 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
6129 mono_array_setref (msg->args, 2, arg);
6132 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args);
6134 if (exc) mono_raise_exception ((MonoException *)exc);
6138 * mono_store_remote_field_new:
6144 * Missing documentation
6147 mono_store_remote_field_new (MonoObject *this, MonoClass *klass, MonoClassField *field, MonoObject *arg)
6149 static MonoMethod *setter = NULL;
6150 MonoDomain *domain = mono_domain_get ();
6151 MonoTransparentProxy *tp = (MonoTransparentProxy *) this;
6152 MonoClass *field_class;
6153 MonoMethodMessage *msg;
6154 MonoArray *out_args;
6158 g_assert (this->vtable->klass == mono_defaults.transparent_proxy_class);
6160 field_class = mono_class_from_mono_type (field->type);
6162 if (tp->remote_class->proxy_class->contextbound && tp->rp->context == (MonoObject *) mono_context_get ()) {
6163 if (field_class->valuetype) mono_field_set_value (tp->rp->unwrapped_server, field, ((gchar *) arg) + sizeof (MonoObject));
6164 else mono_field_set_value (tp->rp->unwrapped_server, field, arg);
6169 setter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldSetter", -1);
6173 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
6174 mono_message_init (domain, msg, mono_method_get_object (domain, setter, NULL), NULL);
6176 full_name = mono_type_get_full_name (klass);
6177 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
6178 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
6179 mono_array_setref (msg->args, 2, arg);
6182 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args);
6184 if (exc) mono_raise_exception ((MonoException *)exc);
6188 * mono_create_ftnptr:
6190 * Given a function address, create a function descriptor for it.
6191 * This is only needed on some platforms.
6194 mono_create_ftnptr (MonoDomain *domain, gpointer addr)
6196 return callbacks.create_ftnptr (domain, addr);
6200 * mono_get_addr_from_ftnptr:
6202 * Given a pointer to a function descriptor, return the function address.
6203 * This is only needed on some platforms.
6206 mono_get_addr_from_ftnptr (gpointer descr)
6208 return callbacks.get_addr_from_ftnptr (descr);
6212 * mono_string_chars:
6215 * Returns a pointer to the UCS16 characters stored in the MonoString
6218 mono_string_chars (MonoString *s)
6224 * mono_string_length:
6227 * Returns the lenght in characters of the string
6230 mono_string_length (MonoString *s)
6236 * mono_array_length:
6237 * @array: a MonoArray*
6239 * Returns the total number of elements in the array. This works for
6240 * both vectors and multidimensional arrays.
6243 mono_array_length (MonoArray *array)
6245 return array->max_length;
6249 * mono_array_addr_with_size:
6250 * @array: a MonoArray*
6251 * @size: size of the array elements
6252 * @idx: index into the array
6254 * Returns the address of the @idx element in the array.
6257 mono_array_addr_with_size (MonoArray *array, int size, uintptr_t idx)
6259 return ((char*)(array)->vector) + size * idx;