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24 #ifndef __MONO_SGEN_CARD_TABLE_INLINES_H__
25 #define __MONO_SGEN_CARD_TABLE_INLINES_H__
27 void sgen_card_table_reset_region (mword start, mword end) MONO_INTERNAL;
28 void* sgen_card_table_align_pointer (void *ptr) MONO_INTERNAL;
29 void sgen_card_table_mark_range (mword address, mword size) MONO_INTERNAL;
30 void sgen_cardtable_scan_object (char *obj, mword obj_size, guint8 *cards,
31 gboolean mod_union, SgenGrayQueue *queue) MONO_INTERNAL;
33 gboolean sgen_card_table_get_card_data (guint8 *dest, mword address, mword cards) MONO_INTERNAL;
35 void sgen_card_table_init (SgenRemeberedSet *remset) MONO_INTERNAL;
37 /*How many bytes a single card covers*/
40 /* How many bits of the address space is covered by the card table.
41 * If this value is smaller than the number of address bits, card aliasing is required.
43 #define CARD_TABLE_BITS 32
45 #define CARD_SIZE_IN_BYTES (1 << CARD_BITS)
46 #define CARD_COUNT_BITS (CARD_TABLE_BITS - CARD_BITS)
47 #define CARD_COUNT_IN_BYTES (1 << CARD_COUNT_BITS)
48 #define CARD_MASK ((1 << CARD_COUNT_BITS) - 1)
50 #if SIZEOF_VOID_P * 8 > CARD_TABLE_BITS
51 #define SGEN_HAVE_OVERLAPPING_CARDS 1
54 extern guint8 *sgen_cardtable MONO_INTERNAL;
57 #ifdef SGEN_HAVE_OVERLAPPING_CARDS
60 sgen_card_table_get_card_address (mword address)
62 return sgen_cardtable + ((address >> CARD_BITS) & CARD_MASK);
65 extern guint8 *sgen_shadow_cardtable MONO_INTERNAL;
68 sgen_card_table_get_shadow_card_address (mword address)
70 return sgen_shadow_cardtable + ((address >> CARD_BITS) & CARD_MASK);
73 static inline gboolean
74 sgen_card_table_card_begin_scanning (mword address)
76 return *sgen_card_table_get_shadow_card_address (address) != 0;
80 sgen_card_table_prepare_card_for_scanning (guint8 *card)
84 #define sgen_card_table_get_card_scan_address sgen_card_table_get_shadow_card_address
89 sgen_card_table_get_card_address (mword address)
91 return sgen_cardtable + (address >> CARD_BITS);
94 static inline gboolean
95 sgen_card_table_card_begin_scanning (mword address)
97 guint8 *card = sgen_card_table_get_card_address (address);
104 sgen_card_table_prepare_card_for_scanning (guint8 *card)
109 #define sgen_card_table_get_card_scan_address sgen_card_table_get_card_address
113 static inline gboolean
114 sgen_card_table_address_is_marked (mword address)
116 return *sgen_card_table_get_card_address (address) != 0;
120 sgen_card_table_mark_address (mword address)
122 *sgen_card_table_get_card_address (address) = 1;