3 * GC implementation using malloc: will leak everything, just for testing.
5 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
6 * Copyright 2004-2011 Novell, Inc (http://www.novell.com)
7 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
8 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
13 #include <mono/metadata/mono-gc.h>
14 #include <mono/metadata/gc-internals.h>
15 #include <mono/metadata/runtime.h>
16 #include <mono/utils/atomic.h>
17 #include <mono/utils/mono-threads.h>
18 #include <mono/utils/mono-counters.h>
23 mono_gc_base_init (void)
25 MonoThreadInfoCallbacks cb;
28 mono_counters_init ();
31 mono_w32handle_init ();
34 memset (&cb, 0, sizeof (cb));
35 /* TODO: This casts away an incompatible pointer type warning in the same
36 manner that boehm-gc does it. This is probably worth investigating
38 cb.mono_method_is_critical = (gpointer)mono_runtime_is_critical_method;
40 mono_threads_init (&cb, sizeof (MonoThreadInfo));
42 mono_thread_info_attach (&dummy);
46 mono_gc_base_cleanup (void)
51 mono_gc_collect (int generation)
56 mono_gc_max_generation (void)
62 mono_gc_get_generation (MonoObject *object)
68 mono_gc_collection_count (int generation)
74 mono_gc_add_memory_pressure (gint64 value)
78 /* maybe track the size, not important, though */
80 mono_gc_get_used_size (void)
86 mono_gc_get_heap_size (void)
92 mono_gc_is_gc_thread (void)
98 mono_gc_register_thread (void *baseptr)
104 mono_gc_walk_heap (int flags, MonoGCReferences callback, void *data)
110 mono_object_is_alive (MonoObject* o)
116 mono_gc_register_root (char *start, size_t size, void *descr, MonoGCRootSource source, const char *msg)
122 mono_gc_deregister_root (char* addr)
127 mono_gc_weak_link_add (void **link_addr, MonoObject *obj, gboolean track)
133 mono_gc_weak_link_remove (void **link_addr, gboolean track)
139 mono_gc_weak_link_get (void **link_addr)
145 mono_gc_make_descr_for_string (gsize *bitmap, int numbits)
151 mono_gc_make_descr_for_object (gsize *bitmap, int numbits, size_t obj_size)
157 mono_gc_make_descr_for_array (int vector, gsize *elem_bitmap, int numbits, size_t elem_size)
163 mono_gc_make_descr_from_bitmap (gsize *bitmap, int numbits)
169 mono_gc_make_vector_descr (void)
175 mono_gc_make_root_descr_all_refs (int numbits)
181 mono_gc_alloc_fixed (size_t size, void *descr, MonoGCRootSource source, const char *msg)
183 return g_malloc0 (size);
187 mono_gc_free_fixed (void* addr)
193 mono_gc_alloc_obj (MonoVTable *vtable, size_t size)
195 MonoObject *obj = g_calloc (1, size);
197 obj->vtable = vtable;
203 mono_gc_alloc_vector (MonoVTable *vtable, size_t size, uintptr_t max_length)
205 MonoArray *obj = g_calloc (1, size);
207 obj->obj.vtable = vtable;
208 obj->max_length = max_length;
214 mono_gc_alloc_array (MonoVTable *vtable, size_t size, uintptr_t max_length, uintptr_t bounds_size)
216 MonoArray *obj = g_calloc (1, size);
218 obj->obj.vtable = vtable;
219 obj->max_length = max_length;
222 obj->bounds = (MonoArrayBounds *) ((char *) obj + size - bounds_size);
228 mono_gc_alloc_string (MonoVTable *vtable, size_t size, gint32 len)
230 MonoString *obj = g_calloc (1, size);
232 obj->object.vtable = vtable;
234 obj->chars [len] = 0;
240 mono_gc_alloc_mature (MonoVTable *vtable, size_t size)
242 return mono_gc_alloc_obj (vtable, size);
246 mono_gc_alloc_pinned_obj (MonoVTable *vtable, size_t size)
248 return mono_gc_alloc_obj (vtable, size);
252 mono_gc_wbarrier_set_field (MonoObject *obj, gpointer field_ptr, MonoObject* value)
254 *(void**)field_ptr = value;
258 mono_gc_wbarrier_set_arrayref (MonoArray *arr, gpointer slot_ptr, MonoObject* value)
260 *(void**)slot_ptr = value;
264 mono_gc_wbarrier_arrayref_copy (gpointer dest_ptr, gpointer src_ptr, int count)
266 mono_gc_memmove_aligned (dest_ptr, src_ptr, count * sizeof (gpointer));
270 mono_gc_wbarrier_generic_store (gpointer ptr, MonoObject* value)
272 *(void**)ptr = value;
276 mono_gc_wbarrier_generic_store_atomic (gpointer ptr, MonoObject *value)
278 InterlockedWritePointer (ptr, value);
282 mono_gc_wbarrier_generic_nostore (gpointer ptr)
287 mono_gc_wbarrier_value_copy (gpointer dest, gpointer src, int count, MonoClass *klass)
289 mono_gc_memmove_atomic (dest, src, count * mono_class_value_size (klass, NULL));
293 mono_gc_wbarrier_object_copy (MonoObject* obj, MonoObject *src)
295 /* do not copy the sync state */
296 mono_gc_memmove_aligned ((char*)obj + sizeof (MonoObject), (char*)src + sizeof (MonoObject),
297 mono_object_class (obj)->instance_size - sizeof (MonoObject));
301 mono_gc_is_critical_method (MonoMethod *method)
307 mono_gc_get_aligned_size_for_allocator (int size)
313 mono_gc_get_managed_allocator (MonoClass *klass, gboolean for_box, gboolean known_instance_size)
319 mono_gc_get_managed_array_allocator (MonoClass *klass)
325 mono_gc_get_managed_allocator_by_type (int atype, ManagedAllocatorVariant variant)
331 mono_gc_get_managed_allocator_types (void)
337 mono_gc_get_gc_name (void)
343 mono_gc_add_weak_track_handle (MonoObject *obj, guint32 gchandle)
348 mono_gc_change_weak_track_handle (MonoObject *old_obj, MonoObject *obj, guint32 gchandle)
353 mono_gc_remove_weak_track_handle (guint32 gchandle)
358 mono_gc_remove_weak_track_object (MonoDomain *domain, MonoObject *obj)
364 mono_gc_clear_domain (MonoDomain *domain)
369 mono_gc_suspend_finalizers (void)
374 mono_gc_get_suspend_signal (void)
380 mono_gc_get_restart_signal (void)
386 mono_gc_get_specific_write_barrier (gboolean is_concurrent)
388 g_assert_not_reached ();
393 mono_gc_get_write_barrier (void)
395 g_assert_not_reached ();
400 mono_gc_invoke_with_gc_lock (MonoGCLockedCallbackFunc func, void *data)
406 mono_gc_get_description (void)
408 return g_strdup (DEFAULT_GC_NAME);
412 mono_gc_set_desktop_mode (void)
417 mono_gc_is_moving (void)
423 mono_gc_is_disabled (void)
429 mono_gc_wbarrier_range_copy (gpointer _dest, gpointer _src, int size)
431 g_assert_not_reached ();
435 mono_gc_get_range_copy_func (void)
437 return &mono_gc_wbarrier_range_copy;
441 mono_gc_get_card_table (int *shift_bits, gpointer *card_mask)
443 g_assert_not_reached ();
448 mono_gc_card_table_nursery_check (void)
450 g_assert_not_reached ();
455 mono_gc_get_nursery (int *shift_bits, size_t *size)
461 mono_gc_precise_stack_mark_enabled (void)
467 mono_gc_get_logfile (void)
473 mono_gc_params_set (const char* options)
478 mono_gc_debug_set (const char* options)
483 mono_gc_conservatively_scan_area (void *start, void *end)
485 g_assert_not_reached ();
489 mono_gc_scan_object (void *obj, void *gc_data)
491 g_assert_not_reached ();
496 mono_gc_get_bitmap_for_descr (void *descr, int *numbits)
498 g_assert_not_reached ();
503 mono_gc_set_gc_callbacks (MonoGCCallbacks *callbacks)
508 mono_gc_set_stack_end (void *stack_end)
513 mono_gc_get_los_limit (void)
519 mono_gc_user_markers_supported (void)
525 mono_gc_make_root_descr_user (MonoGCRootMarkFunc marker)
527 g_assert_not_reached ();
533 mono_gc_pthread_create (pthread_t *new_thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg)
535 return pthread_create (new_thread, attr, start_routine, arg);
539 void mono_gc_set_skip_thread (gboolean value)
544 BOOL APIENTRY mono_gc_dllmain (HMODULE module_handle, DWORD reason, LPVOID reserved)
551 mono_gc_get_vtable_bits (MonoClass *klass)
557 mono_gc_register_altstack (gpointer stack, gint32 stack_size, gpointer altstack, gint32 altstack_size)
562 mono_gc_is_null (void)
568 MONO_EMPTY_SOURCE_FILE (null_gc);
569 #endif /* HAVE_NULL_GC */