#include "metadata/sgen-cardtable.h"
#include "metadata/sgen-memory-governor.h"
#include "metadata/sgen-protocol.h"
+#include "metadata/sgen-layout-stats.h"
#include "utils/mono-counters.h"
#include "utils/mono-time.h"
#include "utils/mono-memory-model.h"
-#ifdef SGEN_HAVE_CARDTABLE
-
//#define CARDTABLE_STATS
#ifdef HAVE_UNISTD_H
#endif
#include <sys/types.h>
+#define ARRAY_OBJ_INDEX(ptr,array,elem_size) (((char*)(ptr) - ((char*)(array) + G_STRUCT_OFFSET (MonoArray, vector))) / (elem_size))
+
guint8 *sgen_cardtable;
+static gboolean need_mod_union;
#ifdef HEAVY_STATISTICS
long long marked_cards;
sgen_card_table_wbarrier_set_field (MonoObject *obj, gpointer field_ptr, MonoObject* value)
{
*(void**)field_ptr = value;
- if (sgen_ptr_in_nursery (value))
+ if (need_mod_union || sgen_ptr_in_nursery (value))
sgen_card_table_mark_address ((mword)field_ptr);
sgen_dummy_use (value);
}
sgen_card_table_wbarrier_set_arrayref (MonoArray *arr, gpointer slot_ptr, MonoObject* value)
{
*(void**)slot_ptr = value;
- if (sgen_ptr_in_nursery (value))
+ if (need_mod_union || sgen_ptr_in_nursery (value))
sgen_card_table_mark_address ((mword)slot_ptr);
sgen_dummy_use (value);
}
for (; dest >= start; --src, --dest) {
gpointer value = *src;
*dest = value;
- if (sgen_ptr_in_nursery (value))
+ if (need_mod_union || sgen_ptr_in_nursery (value))
sgen_card_table_mark_address ((mword)dest);
sgen_dummy_use (value);
}
for (; dest < end; ++src, ++dest) {
gpointer value = *src;
*dest = value;
- if (sgen_ptr_in_nursery (value))
+ if (need_mod_union || sgen_ptr_in_nursery (value))
sgen_card_table_mark_address ((mword)dest);
sgen_dummy_use (value);
}
TLAB_ACCESS_INIT;
ENTER_CRITICAL_REGION;
#endif
- mono_gc_memmove (dest, src, size);
+ mono_gc_memmove_atomic (dest, src, size);
sgen_card_table_mark_range ((mword)dest, size);
#ifdef DISABLE_CRITICAL_REGION
UNLOCK_GC;
TLAB_ACCESS_INIT;
ENTER_CRITICAL_REGION;
#endif
- mono_gc_memmove ((char*)obj + sizeof (MonoObject), (char*)src + sizeof (MonoObject),
+ mono_gc_memmove_aligned ((char*)obj + sizeof (MonoObject), (char*)src + sizeof (MonoObject),
size - sizeof (MonoObject));
sgen_card_table_mark_range ((mword)obj, size);
#ifdef DISABLE_CRITICAL_REGION
#endif
}
- return mask;
+ return mask != 0;
}
void*
return sgen_card_table_address_is_marked ((mword)addr);
}
+static gboolean
+sgen_card_table_find_address_with_cards (char *cards_start, guint8 *cards, char *addr)
+{
+ cards_start = sgen_card_table_align_pointer (cards_start);
+ return cards [(addr - cards_start) >> CARD_BITS];
+}
+
+static void
+update_mod_union (guint8 *dest, gboolean init, guint8 *start_card, size_t num_cards)
+{
+ if (init) {
+ memcpy (dest, start_card, num_cards);
+ } else {
+ int i;
+ for (i = 0; i < num_cards; ++i)
+ dest [i] |= start_card [i];
+ }
+}
+
+static guint8*
+alloc_mod_union (size_t num_cards)
+{
+ return sgen_alloc_internal_dynamic (num_cards, INTERNAL_MEM_CARDTABLE_MOD_UNION, TRUE);
+}
+
+guint8*
+sgen_card_table_update_mod_union_from_cards (guint8 *dest, guint8 *start_card, size_t num_cards)
+{
+ gboolean init = dest == NULL;
+
+ if (init)
+ dest = alloc_mod_union (num_cards);
+
+ update_mod_union (dest, init, start_card, num_cards);
+
+ return dest;
+}
+
+guint8*
+sgen_card_table_update_mod_union (guint8 *dest, char *obj, mword obj_size, size_t *out_num_cards)
+{
+ guint8 *start_card = sgen_card_table_get_card_address ((mword)obj);
+#ifndef SGEN_HAVE_OVERLAPPING_CARDS
+ guint8 *end_card = sgen_card_table_get_card_address ((mword)obj + obj_size - 1) + 1;
+#endif
+ size_t num_cards;
+ guint8 *result = NULL;
+
+#ifdef SGEN_HAVE_OVERLAPPING_CARDS
+ size_t rest;
+
+ rest = num_cards = cards_in_range ((mword) obj, obj_size);
+
+ while (start_card + rest > SGEN_CARDTABLE_END) {
+ size_t count = SGEN_CARDTABLE_END - start_card;
+ dest = sgen_card_table_update_mod_union_from_cards (dest, start_card, count);
+ if (!result)
+ result = dest;
+ dest += count;
+ rest -= count;
+ start_card = sgen_cardtable;
+ }
+ num_cards = rest;
+#else
+ num_cards = end_card - start_card;
+#endif
+
+ dest = sgen_card_table_update_mod_union_from_cards (dest, start_card, num_cards);
+ if (!result)
+ result = dest;
+
+ if (out_num_cards)
+ *out_num_cards = num_cards;
+
+ return result;
+}
+
#ifdef SGEN_HAVE_OVERLAPPING_CARDS
static void
guint8 *to = sgen_card_table_get_shadow_card_address (start);
size_t bytes = cards_in_range (start, size);
- if (to + bytes > SGEN_SHADOW_CARDTABLE_END) {
+ if (bytes >= CARD_COUNT_IN_BYTES) {
+ memcpy (sgen_shadow_cardtable, sgen_cardtable, CARD_COUNT_IN_BYTES);
+ } else if (to + bytes > SGEN_SHADOW_CARDTABLE_END) {
size_t first_chunk = SGEN_SHADOW_CARDTABLE_END - to;
size_t second_chunk = MIN (CARD_COUNT_IN_BYTES, bytes) - first_chunk;
guint8 *addr = sgen_card_table_get_card_address (start);
size_t bytes = cards_in_range (start, size);
- if (addr + bytes > SGEN_CARDTABLE_END) {
+ if (bytes >= CARD_COUNT_IN_BYTES) {
+ memset (sgen_cardtable, 0, CARD_COUNT_IN_BYTES);
+ } else if (addr + bytes > SGEN_CARDTABLE_END) {
size_t first_chunk = SGEN_CARDTABLE_END - addr;
memset (addr, 0, first_chunk);
HEAVY_STAT (++large_objects);
- if (!SGEN_VTABLE_HAS_REFERENCES (vt))
+ if (!SGEN_VTABLE_HAS_REFERENCES (vt)) {
+ sgen_object_layout_scanned_bitmap (0);
return;
+ }
if (vt->rank) {
guint8 *card_data, *card_base;
mword obj_size = sgen_par_object_get_size (vt, (MonoObject*)obj);
char *obj_end = obj + obj_size;
size_t card_count;
- int extra_idx = 0;
+ size_t extra_idx = 0;
MonoArray *arr = (MonoArray*)obj;
mword desc = (mword)klass->element_class->gc_descr;
guint8 *overflow_scan_end = NULL;
#endif
+#ifdef SGEN_OBJECT_LAYOUT_STATISTICS
+ if (klass->element_class->valuetype)
+ sgen_object_layout_scanned_vtype_array ();
+ else
+ sgen_object_layout_scanned_ref_array ();
+#endif
+
if (cards)
card_data = cards;
else
card_data = find_next_card (card_data, card_data_end);
for (; card_data < card_data_end; card_data = find_next_card (card_data + 1, card_data_end)) {
- int index;
- int idx = (card_data - card_base) + extra_idx;
+ size_t index;
+ size_t idx = (card_data - card_base) + extra_idx;
char *start = (char*)(obj_start + idx * CARD_SIZE_IN_BYTES);
char *card_end = start + CARD_SIZE_IN_BYTES;
char *first_elem, *elem;
else
index = ARRAY_OBJ_INDEX (start, obj, elem_size);
- elem = first_elem = (char*)mono_array_addr_with_size ((MonoArray*)obj, elem_size, index);
+ elem = first_elem = (char*)mono_array_addr_with_size_fast ((MonoArray*)obj, elem_size, index);
if (klass->element_class->valuetype) {
ScanVTypeFunc scan_vtype_func = sgen_get_current_object_ops ()->scan_vtype;
for (; elem < card_end; elem += elem_size)
- scan_vtype_func (elem, desc, queue);
+ scan_vtype_func (elem, desc, queue BINARY_PROTOCOL_ARG (elem_size));
} else {
CopyOrMarkObjectFunc copy_func = sgen_get_current_object_ops ()->copy_or_mark_object;
copy_func ((void**)elem, queue);
new = *(gpointer*)elem;
if (G_UNLIKELY (sgen_ptr_in_nursery (new)))
- sgen_add_to_global_remset (elem, new, mod_union);
+ sgen_add_to_global_remset (elem, new);
}
}
}
printf ("cards major (t %d m %d g %d r %d) los (t %d m %d g %d r %d) major_scan %.2fms los_scan %.2fms\n",
major_stats.total, major_stats.marked, major_stats.gc_marked, major_stats.remarked,
los_stats.total, los_stats.marked, los_stats.gc_marked, los_stats.remarked,
- last_major_scan_time / 1000.0, last_los_scan_time / 1000.0);
+ last_major_scan_time / 10000.0f, last_los_scan_time / 10000.0f);
}
#endif
}
mono_counters_register ("cardtable large objects", MONO_COUNTER_GC | MONO_COUNTER_LONG, &large_objects);
mono_counters_register ("cardtable bloby objects", MONO_COUNTER_GC | MONO_COUNTER_LONG, &bloby_objects);
#endif
- mono_counters_register ("cardtable major scan time", MONO_COUNTER_GC | MONO_COUNTER_TIME_INTERVAL, &major_card_scan_time);
- mono_counters_register ("cardtable los scan time", MONO_COUNTER_GC | MONO_COUNTER_TIME_INTERVAL, &los_card_scan_time);
+ mono_counters_register ("cardtable major scan time", MONO_COUNTER_GC | MONO_COUNTER_LONG | MONO_COUNTER_TIME, &major_card_scan_time);
+ mono_counters_register ("cardtable los scan time", MONO_COUNTER_GC | MONO_COUNTER_LONG | MONO_COUNTER_TIME, &los_card_scan_time);
remset->wbarrier_set_field = sgen_card_table_wbarrier_set_field;
remset->prepare_for_major_collection = sgen_card_table_prepare_for_major_collection;
remset->find_address = sgen_card_table_find_address;
-}
-
-#else
+ remset->find_address_with_cards = sgen_card_table_find_address_with_cards;
-void
-sgen_card_table_mark_address (mword address)
-{
- g_assert_not_reached ();
-}
-
-void
-sgen_card_table_mark_range (mword address, mword size)
-{
- g_assert_not_reached ();
+ need_mod_union = sgen_get_major_collector ()->is_concurrent;
}
-guint8*
-mono_gc_get_card_table (int *shift_bits, gpointer *mask)
-{
- return NULL;
-}
-
-#endif
-
#endif /*HAVE_SGEN_GC*/
projects / mono.git / blobdiff