old-cross-binutils/gdb/dcache.h
Doug Evans 25f122dc09 Replace dcache with splay tree.
Remove partially implemented writeback support.
	* dcache.c: Include splay-tree.h.
	(LINE_SIZE_POWER): Change from 5 to 6.
	(DCACHE_SIZE): Change from 64 to 4096.
	(ENTRY_INVALID, ENTRY_VALID, ENTRY_DIRTY): Delete.
	(state_chars): Delete.
	(struct dcache_block): Clean up; remove state and anydirty fields.
	(struct dcache_struct): Redefine as a splay tree and linked list.
	(last_cache): Make static.
	(dcache_invalidate, dcache_hit): Rewrite for new cache structure.
	(dcache_read_line, dcache_alloc): Rewrite for new cache structure.
	(dcache_write_line): Delete.
	(dcache_writeback): Delete.
	(dcache_peek_byte): Clean up; remove "invalid" state check.
	(dcache_poke_byte): Rewrite for new cache structure; clarify comment.
	(dcache_splay_tree_compare): New function.
	(dcache_init, dcache_free): Rewrite for new cache structure.
	(dcache_xfer_memory): Rewrite for new write-through cache structure.
	(dcache_print_line): New function.
	(dcache_info): Rewrite for new cache structure.
	(_initialize_dcache): Update "info dcache" help text.
	* dcache.h (dcache_xfer_memory): Update declaration.
	* target.c (memory_xfer_partial): Update calls to dcache_xfer_memory.
2009-08-20 22:30:12 +00:00

41 lines
1.3 KiB
C

/* Declarations for caching. Typically used by remote back ends for
caching remote memory.
Copyright (C) 1992, 1993, 1995, 1999, 2000, 2001, 2007, 2008, 2009
Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef DCACHE_H
#define DCACHE_H
typedef struct dcache_struct DCACHE;
/* Invalidate DCACHE. */
void dcache_invalidate (DCACHE *dcache);
/* Initialize DCACHE. */
DCACHE *dcache_init (void);
/* Free a DCACHE */
void dcache_free (DCACHE *);
/* Simple to call from <remote>_xfer_memory */
int dcache_xfer_memory (struct target_ops *ops, DCACHE *cache, CORE_ADDR mem,
gdb_byte *my, int len, int should_write);
#endif /* DCACHE_H */