int cache_has_stuff;
};
-static int dcache_poke_byte PARAMS ((DCACHE * dcache, CORE_ADDR addr,
- char *ptr));
+static int dcache_poke_byte (DCACHE * dcache, CORE_ADDR addr, char *ptr);
-static int dcache_peek_byte PARAMS ((DCACHE * dcache, CORE_ADDR addr,
- char *ptr));
+static int dcache_peek_byte (DCACHE * dcache, CORE_ADDR addr, char *ptr);
-static struct dcache_block *dcache_hit PARAMS ((DCACHE * dcache,
- CORE_ADDR addr));
+static struct dcache_block *dcache_hit (DCACHE * dcache, CORE_ADDR addr);
-static int dcache_write_line PARAMS ((DCACHE * dcache, struct dcache_block * db));
+static int dcache_write_line (DCACHE * dcache, struct dcache_block *db);
-static struct dcache_block *dcache_alloc PARAMS ((DCACHE * dcache));
+static struct dcache_block *dcache_alloc (DCACHE * dcache, CORE_ADDR addr);
-static int dcache_writeback PARAMS ((DCACHE * dcache));
+static int dcache_writeback (DCACHE * dcache);
-static void dcache_info PARAMS ((char *exp, int tty));
+static void dcache_info (char *exp, int tty);
-void _initialize_dcache PARAMS ((void));
+void _initialize_dcache (void);
static int dcache_enabled_p = 0;
/* Free all the data cache blocks, thus discarding all cached data. */
void
-dcache_flush (dcache)
- DCACHE *dcache;
+dcache_flush (DCACHE *dcache)
{
int i;
dcache->valid_head = 0;
containing it. */
static struct dcache_block *
-dcache_hit (dcache, addr)
- DCACHE *dcache;
- CORE_ADDR addr;
+dcache_hit (DCACHE *dcache, CORE_ADDR addr)
{
register struct dcache_block *db;
be written is. */
static int
-dcache_write_line (dcache, db)
- DCACHE *dcache;
- register struct dcache_block *db;
+dcache_write_line (DCACHE *dcache, register struct dcache_block *db)
{
int s;
int e;
/* Get a free cache block, put or keep it on the valid list,
- and return its address. The caller should store into the block
- the address and data that it describes, then remque it from the
- free list and insert it into the valid list. This procedure
- prevents errors from creeping in if a memory retrieval is
- interrupted (which used to put garbage blocks in the valid
- list...). */
+ and return its address. */
static struct dcache_block *
-dcache_alloc (dcache)
- DCACHE *dcache;
+dcache_alloc (DCACHE *dcache, CORE_ADDR addr)
{
register struct dcache_block *db;
dcache_write_line (dcache, db);
}
+ db->addr = MASK(addr);
+ db->refs = 0;
+ db->anydirty = 0;
+ memset (db->state, ENTRY_BAD, sizeof (db->data));
+
/* append this line to end of valid list */
if (!dcache->valid_head)
dcache->valid_head = db;
Returns 0 on error. */
static int
-dcache_peek_byte (dcache, addr, ptr)
- DCACHE *dcache;
- CORE_ADDR addr;
- char *ptr;
+dcache_peek_byte (DCACHE *dcache, CORE_ADDR addr, char *ptr)
{
register struct dcache_block *db = dcache_hit (dcache, addr);
int ok = 1;
dcache_write_line (dcache, db);
}
else
- db = dcache_alloc (dcache);
+ db = dcache_alloc (dcache, addr);
+
immediate_quit++;
- db->addr = MASK (addr);
while (done < LINE_SIZE)
{
int try =
/* Writeback any dirty lines to the remote. */
static int
-dcache_writeback (dcache)
- DCACHE *dcache;
+dcache_writeback (DCACHE *dcache)
{
struct dcache_block *db;
}
-/* Using the data cache DCACHE return the contents of the word at
- address ADDR in the remote machine. */
-int
-dcache_fetch (dcache, addr)
- DCACHE *dcache;
- CORE_ADDR addr;
-{
- int res;
-
- if (dcache_xfer_memory (dcache, addr, (char *) &res, sizeof res, 0) != sizeof res)
- memory_error (EIO, addr);
-
- return res;
-}
-
-
/* Write the byte at PTR into ADDR in the data cache.
Return zero on write error.
*/
static int
-dcache_poke_byte (dcache, addr, ptr)
- DCACHE *dcache;
- CORE_ADDR addr;
- char *ptr;
+dcache_poke_byte (DCACHE *dcache, CORE_ADDR addr, char *ptr)
{
register struct dcache_block *db = dcache_hit (dcache, addr);
if (!db)
{
- db = dcache_alloc (dcache);
- db->addr = MASK (addr);
- memset (db->state, ENTRY_BAD, sizeof (db->data));
+ db = dcache_alloc (dcache, addr);
}
db->data[XFORM (addr)] = *ptr;
return 1;
}
-/* Write the word at ADDR both in the data cache and in the remote machine.
- Return zero on write error.
- */
-
-int
-dcache_poke (dcache, addr, data)
- DCACHE *dcache;
- CORE_ADDR addr;
- int data;
-{
- if (dcache_xfer_memory (dcache, addr, (char *) &data, sizeof data, 1) != sizeof data)
- return 0;
-
- return dcache_writeback (dcache);
-}
-
-
/* Initialize the data cache. */
DCACHE *
-dcache_init (reading, writing)
- memxferfunc reading;
- memxferfunc writing;
+dcache_init (memxferfunc reading, memxferfunc writing)
{
int csize = sizeof (struct dcache_block) * DCACHE_SIZE;
DCACHE *dcache;
This routine is indended to be called by remote_xfer_ functions. */
int
-dcache_xfer_memory (dcache, memaddr, myaddr, len, should_write)
- DCACHE *dcache;
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int should_write;
+dcache_xfer_memory (DCACHE *dcache, CORE_ADDR memaddr, char *myaddr, int len,
+ int should_write)
{
int i;
if (dcache_enabled_p)
{
- int (*xfunc) PARAMS ((DCACHE * dcache, CORE_ADDR addr, char *ptr));
+ int (*xfunc) (DCACHE * dcache, CORE_ADDR addr, char *ptr);
xfunc = should_write ? dcache_poke_byte : dcache_peek_byte;
for (i = 0; i < len; i++)
}
static void
-dcache_info (exp, tty)
- char *exp;
- int tty;
+dcache_info (char *exp, int tty)
{
struct dcache_block *p;
}
}
+/* Turn dcache on or off. */
+void
+set_dcache_state (int what)
+{
+ dcache_enabled_p = !!what;
+}
+
void
-_initialize_dcache ()
+_initialize_dcache (void)
{
add_show_from_set
(add_set_cmd ("remotecache", class_support, var_boolean,
projects / deliverable / binutils-gdb.git / blobdiff