page_entry Struct Reference

Collaboration diagram for page_entry:

Data Fields
struct page_entry *	next
struct page_entry *	prev
size_t	bytes
char *	page
struct page_group *	group
unsigned long	index_by_depth
unsigned short	context_depth
unsigned short	num_free_objects
unsigned short	next_bit_hint
unsigned char	order
bool	discarded
unsigned long	in_use_p [1]

Detailed Description

A page_entry records the status of an allocation page.  This
structure is dynamically sized to fit the bitmap in_use_p.   

Field Documentation

bytes

size_t page_entry::bytes

Referenced by alloc_page(), free_page(), ggc_pch_read(), ggc_print_statistics(), init_ggc(), and release_pages().

context_depth

unsigned short page_entry::context_depth

Referenced by alloc_page(), clear_marks(), debug_print_page_list(), free_page(), ggc_pch_read(), and sweep_pages().

discarded

bool page_entry::discarded

Referenced by alloc_page(), and release_pages().

group

struct page_group* page_entry::group

Referenced by alloc_page(), clear_page_group_in_use(), free_page(), release_pages(), and set_page_group_in_use().

in_use_p

unsigned long page_entry::in_use_p[1]

Referenced by alloc_page(), clear_marks(), ggc_free(), ggc_internal_alloc(), ggc_marked_p(), ggc_pch_read(), ggc_recalculate_in_use_p(), ggc_set_mark(), and gt_ggc_m_S().

index_by_depth

unsigned long page_entry::index_by_depth

Referenced by free_page(), and move_ptes_to_front().

next

struct page_entry* page_entry::next

Referenced by alloc_page(), clear_marks(), free_page(), ggc_free(), ggc_internal_alloc(), ggc_pch_read(), ggc_print_statistics(), init_ggc(), release_pages(), and sweep_pages().

next_bit_hint

unsigned short page_entry::next_bit_hint

Referenced by alloc_page(), ggc_free(), and ggc_internal_alloc().

num_free_objects

unsigned short page_entry::num_free_objects

Referenced by alloc_page(), clear_marks(), ggc_free(), ggc_internal_alloc(), ggc_pch_read(), ggc_print_statistics(), ggc_recalculate_in_use_p(), ggc_set_mark(), gt_ggc_m_S(), and sweep_pages().

order

unsigned char page_entry::order

Referenced by alloc_page(), clear_marks(), debug_print_page_list(), ggc_free(), ggc_get_size(), ggc_internal_alloc(), ggc_marked_p(), ggc_pch_read(), ggc_round_alloc_size_1(), ggc_set_mark(), gt_ggc_m_S(), init_ggc(), and sweep_pages().

page

char* page_entry::page

Referenced by alloc_page(), clear_marks(), clear_page_group_in_use(), free_page(), ggc_free(), ggc_internal_alloc(), ggc_marked_p(), ggc_pch_read(), ggc_set_mark(), gt_ggc_m_S(), init_ggc(), page_group_index(), release_pages(), and set_page_group_in_use().

prev

struct page_entry* page_entry::prev

Referenced by ggc_free(), ggc_internal_alloc(), release_pages(), and sweep_pages().

---

The documentation for this struct was generated from the following file:

• ggc-page.cc