* TODO: Note abstraction layer violation where "ocd reset" command

must invalidate the dcache, and how this might be fixed.

* monitor.c (#include "dcache.h"): Removed.
(remote_dcache): Removed.
(monitor_open): Removed code that created local dcache.
(flush_monitor_dcache): Removed (unused function).
(monitor_resume): Removed call to dcache_invd().
(monitor_load): Likewise.
(monitor_xfer_memory): Changed to call monitor_write_memory(),
monitor_write_memory_block(), and monitor_read_memory() instead
of dcache_xfer_memory().
* monitor.h (flush_monitor_dcache): Removed (unused function).
* ocd.c (#include "dcache.h"): Removed.
(ocd_dcache): Removed.
(ocd_open): Removed code that created local dcache.
(ocd_resume): Removed call to dcache_invd().
(ocd_xfer_memory): Changed to call ocd_write_bytes() and
ocd_read_bytes() instead of dcache_xfer_memory().
(bdm_reset_command): Invalidate target dcache.
* remote-bug.c (bug_load): Remove call to dcache_invd().
(bug_resume): Likewise.
(bug_settings): Remove dcache, readfunc, and writefunc fields
from initializer.
(bug_xfer_memory): Changed to call bug_read_memory() and
bug_write_memory() instead of dcache_xfer_memory().
* remote-nindy.c (#include "dcache.h"): Removed.
(nindy_dcache): Removed.
(nindy_open): Removed code that created local dcache.
(nindy_resume): Removed call to dcache_invd().
(nindy_load): Likewise.
(nindy_xfer_inferior_memory): Changed to call ninMemPut() and
ninMemGet() instead of dcache_xfer_memory().
* remote-sds.c (#include "dcache.h"): Removed.
(sds_dcache): Removed.
(sds_open): Removed code that created local dcache.
(sds_resume): Removed call to dcache_invd().
(sds_xfer_memory): Changed to call sds_write_bytes() and
sds_read_bytes() instead of dcache_xfer_memory().
* remote-utils.c (gr_open): Removed code that created local dcache.
* remote-utils.h (#include "dcache.h"): Removed.
(struct gr_settings): Removed dcache, readfunc, and writefunc fields.
(gr_get_dcache, gr_set_dcache): Removed macro definitions.
* remote.c (#include "dcache.h"): Removed.
(remote_dcache): Removed.
(remote_open_1): Removed code that created local dcache.
(remote_async_open_1): Likewise.
(remote_resume): Removed call to dcache_invd().
(remote_async_resume): Likewise.
(remote_xfer_memory): Changed to call remote_write_bytes() and
remote_read_bytes() instead of dcache_xfer_memory().
* wince.c (#include "dcache.h"): Removed.
(remote_dcache): Removed.
(child_create_inferior): Removed code that created local dcache.
(child_xfer_memory): Changed to call remote_write_bytes() and
remote_read_bytes() instead of dcache_xfer_memory().
(child_resume): Removed call to dcache_invd().

* target.c (target_dcache): Added.
(target_load): Invalidate target_dcache.
(do_xfer_memory): New function.
(target_xfer_memory): Reimplement in terms of dcache_xfer_memory().
(target_xfer_memory_partial): Likewise.
(initialize_targets): Create target_dcache.
* target.h (#include "dcache.h"): Added.
(target_open): Invalidate target_dcache.
(target_resume): Likewise.
(do_xfer_memory): New declaration.

* dcache.c (dcache_init): Removed reading and writing arguments.
(dcache_struct): Removed read_memory and write_memory fields.
(dcache_write_line): Call do_xfer_memory.
(dcache_read_line): Likewise.
(dcache_xfer_memory): Likewise.
(dcache_invalidate): Renamed from dcache_invd.
(dcache_init): Updated.
(dcache_xfer_memory): Updated.
* dcache.h (memxferfunc): Removed definition.

gdb/remote-bug.c

@@ -119,7 +119,6 @@ bug_load (char *args, int fromtty)
 
   sr_check_open ();
 
-  dcache_invd (gr_get_dcache ());
   inferior_pid = 0;
   abfd = bfd_openr (args, 0);
   if (!abfd)
@@ -198,12 +197,9 @@ get_word (char **p)
 
 static struct gr_settings bug_settings =
 {
-  NULL,				/* dcache */
   "Bug>",			/* prompt */
   &bug_ops,			/* ops */
   bug_clear_breakpoints,	/* clear_all_breakpoints */
-  bug_read_memory,		/* readfunc */
-  bug_write_memory,		/* writefunc */
   gr_generic_checkin,		/* checkin */
 };
 
@@ -242,8 +238,6 @@ bug_open (char *args, int from_tty)
 void
 bug_resume (int pid, int step, enum target_signal sig)
 {
-  dcache_invd (gr_get_dcache ());
-
   if (step)
     {
       sr_write_cr ("t");
@@ -563,10 +557,17 @@ int
 bug_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
 		 struct target_ops *target)
 {
+  int res;
+
   if (len <= 0)
     return 0;
 
-  return dcache_xfer_memory (gr_get_dcache (), memaddr, myaddr, len, write);
+  if (write)
+    res = bug_write_memory (memaddr, myaddr, len);
+  else
+    res = bug_read_memory (memaddr, myaddr, len);
+
+  return res;
 }
 
 static void