* configure.in: Added gnuserv everywhere sn appears.

[deliverable/binutils-gdb.git] / gdb / dcache.h

diff --git a/gdb/dcache.h b/gdb/dcache.h
index bfc0dd7a1e3cb262c8041990d2aec337cd3830cf..a0b762a2e13466ce43cc269e651407d1a63e1c42 100644 (file)
--- a/gdb/dcache.h
+++ b/gdb/dcache.h
@@ -17,55 +17,16 @@ 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, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 #ifndef DCACHE_H
 #define DCACHE_H
 
-/* The data cache leads to incorrect results because it doesn't know about
-   volatile variables, thus making it impossible to debug functions which
-   use hardware registers.  Therefore it is #if 0'd out.  Effect on
-   performance is some, for backtraces of functions with a few
-   arguments each.  For functions with many arguments, the stack
-   frames don't fit in the cache blocks, which makes the cache less
-   helpful.  Disabling the cache is a big performance win for fetching
-   large structures, because the cache code fetched data in 16-byte
-   chunks.  */
-
-#define LINE_SIZE_POWER (4)
-/* eg 1<<3 == 8 */
-#define LINE_SIZE (1 << LINE_SIZE_POWER)
-/* Number of cache blocks */
-#define DCACHE_SIZE (64)
-
-struct dcache_block
-{
-  struct dcache_block *next, *last;
-  unsigned int addr; /* Address for which data is recorded.  */
-  int data[LINE_SIZE / sizeof (int)];
-};
-
 typedef int (*memxferfunc) PARAMS((CORE_ADDR memaddr,
-                            unsigned char *myaddr,
+                            char *myaddr,
                             int len));
 
-typedef struct {
-  /* Function to actually read the target memory. */
-  memxferfunc read_memory;
-
-  /* Function to actually write the target memory */
-  memxferfunc write_memory;
-
-  /* free list */
-  struct dcache_block dcache_free;
-
-  /* in use list */
-  struct dcache_block dcache_valid;
-
-  /* The cache itself. */
-  struct dcache_block *the_cache;
-
-} DCACHE;
+typedef struct dcache_struct DCACHE;
 
 /* Using the data cache DCACHE return the contents of the word at
    address ADDR in the remote machine.  */
@@ -78,6 +39,12 @@ void dcache_flush PARAMS((DCACHE *dcache));
 DCACHE *dcache_init PARAMS((memxferfunc reading, memxferfunc writing));
 
 /* Write the word at ADDR both in the data cache and in the remote machine.  */
-void dcache_poke PARAMS((DCACHE *dcache, CORE_ADDR addr, int data));
+int dcache_poke PARAMS((DCACHE *dcache, CORE_ADDR addr, int data));
+
+/* Simple to call from <remote>_xfer_memory */
+
+int dcache_xfer_memory PARAMS((DCACHE *cache, CORE_ADDR mem, char *my, int len, int should_write));
 
+/* Write the bytes at ADDR into the data cache and the remote machine. */
+int dcache_poke_block PARAMS((DCACHE *cache, CORE_ADDR mem, char* my, int len));
 #endif /* DCACHE_H */