/home/stan/gdb/src/gdb/dcache.c File Reference

#include "defs.h"
#include "dcache.h"
#include "gdbcmd.h"
#include "gdb_string.h"
#include "gdbcore.h"
#include "target.h"
#include "inferior.h"
#include "splay-tree.h"

Go to the source code of this file.

Classes
struct	dcache_block
struct	dcache_struct
Defines
#define	DCACHE_DEFAULT_SIZE   4096
#define	DCACHE_DEFAULT_LINE_SIZE   64
#define	LINE_SIZE_MASK(dcache)   ((dcache->line_size - 1))
#define	XFORM(dcache, x)   ((x) & LINE_SIZE_MASK (dcache))
#define	MASK(dcache, x)   ((x) & ~LINE_SIZE_MASK (dcache))
Typedefs
typedef void(	block_func )(struct dcache_block *block, void *param)
Functions
static struct dcache_block *	dcache_hit (DCACHE *dcache, CORE_ADDR addr)
static int	dcache_read_line (DCACHE *dcache, struct dcache_block *db)
static struct dcache_block *	dcache_alloc (DCACHE *dcache, CORE_ADDR addr)
static void	dcache_info (char *exp, int tty)
void	_initialize_dcache (void)
static void	show_dcache_enabled_p (struct ui_file *file, int from_tty, struct cmd_list_element *c, const char *value)
static void	append_block (struct dcache_block **blist, struct dcache_block *block)
static void	remove_block (struct dcache_block **blist, struct dcache_block *block)
static void	for_each_block (struct dcache_block **blist, block_func *func, void *param)
static void	free_block (struct dcache_block *block, void *param)
void	dcache_free (DCACHE *dcache)
static void	invalidate_block (struct dcache_block *block, void *param)
void	dcache_invalidate (DCACHE *dcache)
static void	dcache_invalidate_line (DCACHE *dcache, CORE_ADDR addr)
static int	dcache_peek_byte (DCACHE *dcache, CORE_ADDR addr, gdb_byte *ptr)
static int	dcache_poke_byte (DCACHE *dcache, CORE_ADDR addr, gdb_byte *ptr)
static int	dcache_splay_tree_compare (splay_tree_key a, splay_tree_key b)
DCACHE *	dcache_init (void)
int	dcache_xfer_memory (struct target_ops *ops, DCACHE *dcache, CORE_ADDR memaddr, gdb_byte *myaddr, int len, int should_write)
void	dcache_update (DCACHE *dcache, CORE_ADDR memaddr, gdb_byte *myaddr, int len)
static void	dcache_print_line (int index)
static void	set_dcache_size (char *args, int from_tty, struct cmd_list_element *c)
static void	set_dcache_line_size (char *args, int from_tty, struct cmd_list_element *c)
static void	set_dcache_command (char *arg, int from_tty)
static void	show_dcache_command (char *args, int from_tty)
Variables
static struct cmd_list_element *	dcache_set_list = NULL
static struct cmd_list_element *	dcache_show_list = NULL
static unsigned	dcache_size = DCACHE_DEFAULT_SIZE
static unsigned	dcache_line_size = DCACHE_DEFAULT_LINE_SIZE
static int	dcache_enabled_p = 0
static DCACHE *	last_cache

---

Define Documentation

#define DCACHE_DEFAULT_LINE_SIZE   64

Definition at line 83 of file dcache.c.

Referenced by set_dcache_line_size().

#define DCACHE_DEFAULT_SIZE   4096

Definition at line 77 of file dcache.c.

Referenced by set_dcache_size().

#define LINE_SIZE_MASK

(

dcache

)

((dcache->line_size - 1))

Definition at line 89 of file dcache.c.

#define MASK	(		dcache,
			x
	)		((x) & ~LINE_SIZE_MASK (dcache))

Definition at line 91 of file dcache.c.

Referenced by dcache_alloc(), and dcache_hit().

#define XFORM	(		dcache,
			x
	)		((x) & LINE_SIZE_MASK (dcache))

Definition at line 90 of file dcache.c.

Referenced by dcache_peek_byte(), and dcache_poke_byte().

---

Typedef Documentation

typedef void( block_func)(struct dcache_block *block, void *param)

Definition at line 121 of file dcache.c.

---

Function Documentation

void _initialize_dcache

(

void

)

static void append_block	(	struct dcache_block **	blist,
		struct dcache_block *	block
	)		[static]

Definition at line 152 of file dcache.c.

References dcache_block::next, and dcache_block::prev.

Referenced by dcache_alloc(), dcache_invalidate_line(), and invalidate_block().

static struct dcache_block * dcache_alloc	(	DCACHE *	dcache,
		CORE_ADDR	addr
	)		[static, read]

Definition at line 362 of file dcache.c.

References dcache_block::addr, append_block(), dcache_block::data, dcache_size, dcache_struct::freelist, dcache_struct::line_size, MASK, dcache_struct::oldest, dcache_block::refs, remove_block(), dcache_struct::size, dcache_struct::tree, and xmalloc().

Referenced by dcache_peek_byte().

void dcache_free

(

DCACHE *

dcache

)

Definition at line 226 of file dcache.c.

References for_each_block(), free_block(), dcache_struct::freelist, dcache_struct::oldest, dcache_struct::tree, and xfree().

static struct dcache_block * dcache_hit	(	DCACHE *	dcache,
		CORE_ADDR	addr
	)		[static, read]

Definition at line 293 of file dcache.c.

References MASK, dcache_block::refs, and dcache_struct::tree.

Referenced by dcache_invalidate_line(), dcache_peek_byte(), and dcache_poke_byte().

static void dcache_info	(	char *	exp,
		int	tty
	)		[static]

Definition at line 605 of file dcache.c.

References _, dcache_block::addr, dcache_line_size, dcache_print_line(), dcache_size, dcache_struct::line_size, null_ptid, paddress(), printf_filtered(), dcache_struct::ptid, ptid_equal(), dcache_block::refs, target_gdbarch(), target_pid_to_str(), and dcache_struct::tree.

DCACHE* dcache_init

(

void

)

Definition at line 456 of file dcache.c.

References dcache_line_size, dcache_splay_tree_compare(), dcache_struct::freelist, dcache_struct::line_size, null_ptid, dcache_struct::oldest, dcache_struct::ptid, dcache_struct::size, dcache_struct::tree, and xmalloc().

Referenced by initialize_targets().

void dcache_invalidate

(

DCACHE *

dcache

)

Definition at line 254 of file dcache.c.

References dcache_line_size, for_each_block(), free_block(), dcache_struct::freelist, invalidate_block(), dcache_struct::line_size, null_ptid, dcache_struct::oldest, dcache_struct::ptid, and dcache_struct::size.

Referenced by dcache_xfer_memory(), set_dcache_line_size(), set_dcache_size(), and target_dcache_invalidate().

static void dcache_invalidate_line	(	DCACHE *	dcache,
		CORE_ADDR	addr
	)		[static]

Definition at line 276 of file dcache.c.

References dcache_block::addr, append_block(), dcache_hit(), dcache_struct::freelist, dcache_struct::oldest, remove_block(), dcache_struct::size, and dcache_struct::tree.

Referenced by dcache_xfer_memory().

static int dcache_peek_byte	(	DCACHE *	dcache,
		CORE_ADDR	addr,
		gdb_byte *	ptr
	)		[static]

Definition at line 404 of file dcache.c.

References dcache_block::data, dcache_alloc(), dcache_hit(), dcache_read_line(), and XFORM.

Referenced by dcache_xfer_memory().

static int dcache_poke_byte	(	DCACHE *	dcache,
		CORE_ADDR	addr,
		gdb_byte *	ptr
	)		[static]

Definition at line 432 of file dcache.c.

References dcache_block::data, dcache_hit(), and XFORM.

Referenced by dcache_update(), and dcache_xfer_memory().

static void dcache_print_line

(

int

index

)

[static]

Definition at line 561 of file dcache.c.

References _, dcache_block::addr, dcache_block::data, dcache_struct::line_size, paddress(), printf_filtered(), dcache_block::refs, target_gdbarch(), and dcache_struct::tree.

Referenced by dcache_info().

static int dcache_read_line	(	DCACHE *	dcache,
		struct dcache_block *	db
	)		[static]

Definition at line 313 of file dcache.c.

References dcache_block::addr, mem_region::attrib, current_target, dcache_block::data, mem_region::hi, len, dcache_struct::line_size, lookup_mem_region(), MEM_WO, memaddr, mem_attrib::mode, TARGET_OBJECT_RAW_MEMORY, and target_read().

Referenced by dcache_peek_byte().

static int dcache_splay_tree_compare	(	splay_tree_key	a,
		splay_tree_key	b
	)		[static]

Definition at line 443 of file dcache.c.

Referenced by dcache_init().

void dcache_update	(	DCACHE *	dcache,
		CORE_ADDR	memaddr,
		gdb_byte *	myaddr,
		int	len
	)

Definition at line 552 of file dcache.c.

References dcache_poke_byte(), and len.

Referenced by memory_xfer_partial_1().

int dcache_xfer_memory	(	struct target_ops *	ops,
		DCACHE *	dcache,
		CORE_ADDR	memaddr,
		gdb_byte *	myaddr,
		int	len,
		int	should_write
	)

Definition at line 488 of file dcache.c.

References dcache_block::addr, dcache_invalidate(), dcache_invalidate_line(), dcache_peek_byte(), dcache_poke_byte(), inferior_ptid, int, len, dcache_struct::ptid, ptid_equal(), TARGET_OBJECT_RAW_MEMORY, and target_write().

Referenced by memory_xfer_partial_1().

static void for_each_block	(	struct dcache_block **	blist,
		block_func *	func,
		void *	param
	)		[static]

Definition at line 197 of file dcache.c.

References func, and dcache_block::next.

Referenced by dcache_free(), and dcache_invalidate().

static void free_block	(	struct dcache_block *	block,
		void *	param
	)		[static]

Definition at line 218 of file dcache.c.

References xfree().

Referenced by dcache_free(), and dcache_invalidate().

static void invalidate_block	(	struct dcache_block *	block,
		void *	param
	)		[static]

Definition at line 243 of file dcache.c.

References dcache_block::addr, append_block(), dcache_struct::freelist, and dcache_struct::tree.

Referenced by dcache_invalidate().

static void remove_block	(	struct dcache_block **	blist,
		struct dcache_block *	block
	)		[static]

Definition at line 174 of file dcache.c.

References dcache_block::next, and dcache_block::prev.

Referenced by dcache_alloc(), and dcache_invalidate_line().

static void set_dcache_command	(	char *	arg,
		int	from_tty
	)		[static]

Definition at line 688 of file dcache.c.

References gdb_stdout, help_list(), and printf_unfiltered().

static void set_dcache_line_size	(	char *	args,
		int	from_tty,
		struct cmd_list_element *	c
	)		[static]

Definition at line 673 of file dcache.c.

References _, DCACHE_DEFAULT_LINE_SIZE, dcache_invalidate(), dcache_line_size, and error().

static void set_dcache_size	(	char *	args,
		int	from_tty,
		struct cmd_list_element *	c
	)		[static]

Definition at line 660 of file dcache.c.

References _, DCACHE_DEFAULT_SIZE, dcache_invalidate(), dcache_size, and error().

static void show_dcache_command	(	char *	args,
		int	from_tty
	)		[static]

Definition at line 696 of file dcache.c.

References cmd_show_list().

static void show_dcache_enabled_p	(	struct ui_file *	file,
		int	from_tty,
		struct cmd_list_element *	c,
		const char *	value
	)		[static]

Definition at line 136 of file dcache.c.

References _, and fprintf_filtered().

---

Variable Documentation

int dcache_enabled_p = 0 [static]

Definition at line 133 of file dcache.c.

unsigned dcache_line_size = DCACHE_DEFAULT_LINE_SIZE [static]

Definition at line 84 of file dcache.c.

Referenced by dcache_info(), dcache_init(), dcache_invalidate(), and set_dcache_line_size().

struct cmd_list_element* dcache_set_list = NULL [static]

Definition at line 30 of file dcache.c.

struct cmd_list_element* dcache_show_list = NULL [static]

Definition at line 31 of file dcache.c.

unsigned dcache_size = DCACHE_DEFAULT_SIZE [static]

Definition at line 78 of file dcache.c.

Referenced by dcache_alloc(), dcache_info(), and set_dcache_size().

DCACHE* last_cache [static]

Definition at line 142 of file dcache.c.