* TODO (register_buffer): Delete.

* regcache.c (register_buffer): Make static.
(regcache_collect): New function.
* regcache.h (register_buffer): Delete declaration.
(regcache_collect): Declare.
* remote.c (store_register_using_P): Rewrite using
regcache_collect.
(remote_store_registers): Ditto.
* go32-nat.c (store_register): Ditto.

gdb/ChangeLog

@@ -1,3 +1,15 @@
+2001-11-15  Andrew Cagney  <ac131313@redhat.com>
+
+	* TODO (register_buffer): Delete.
+	* regcache.c (register_buffer): Make static.
+	(regcache_collect): New function.
+	* regcache.h (register_buffer): Delete declaration.
+	(regcache_collect): Declare.
+	* remote.c (store_register_using_P): Rewrite using
+	regcache_collect.
+	(remote_store_registers): Ditto.
+	* go32-nat.c (store_register): Ditto.
+
 2001-11-14  Andrew Cagney  <ac131313@redhat.com>
 
 	* remote.c (struct remote_state): Declare.

gdb/TODO

@@ -136,7 +136,6 @@ Deprecate, if not delete, the following:
 
         register[]
         register_valid[]
-        register_buffer()
 	REGISTER_BYTE()
                 Replaced by, on the target side
                   supply_register()

gdb/go32-nat.c

@@ -493,7 +493,8 @@ static void
 store_register (int regno)
 {
   void *rp;
-  void *v = (void *) register_buffer (regno);
+  void *v = alloca (MAX_REGISTER_RAW_SIZE);
+  regcache_collect (regno, v);
 
   if (regno < FP0_REGNUM)
     memcpy ((char *) &a_tss + regno_mapping[regno].tss_ofs,

gdb/regcache.c

@@ -90,7 +90,7 @@ register_changed (int regnum)
 /* If REGNUM >= 0, return a pointer to register REGNUM's cache buffer area,
    else return a pointer to the start of the cache buffer.  */
 
-char *
+static char *
 register_buffer (int regnum)
 {
   if (regnum < 0)
@@ -568,6 +568,13 @@ supply_register (int regnum, char *val)
 #endif
 }
 
+void
+regcache_collect (int regnum, void *buf)
+{
+  memcpy (buf, register_buffer (regnum), REGISTER_RAW_SIZE (regnum));
+}
+
+
 /* read_pc, write_pc, read_sp, write_sp, read_fp, write_fp, etc.
    Special handling for registers PC, SP, and FP.  */
 

gdb/regcache.h

@@ -28,6 +28,14 @@
 void regcache_read (int rawnum, char *buf);
 void regcache_write (int rawnum, char *buf);
 
+/* Transfer a raw register [0..NUM_REGS) between the regcache and the
+   target.  These functions are called by the target in response to a
+   target_fetch_registers() or target_store_registers().  */
+
+extern void supply_register (int regnum, char *val);
+extern void regcache_collect (int regnum, void *buf);
+
+
 /* DEPRECATED: Character array containing an image of the inferior
    programs' registers for the most recently referenced thread. */
 
@@ -45,11 +53,6 @@ extern void set_register_cached (int regnum, int state);
 
 extern void register_changed (int regnum);
 
-/* DEPRECATED: Functional interface returning pointer into registers[]
-   array. */
-
-extern char *register_buffer (int regnum);
-
 extern void registers_changed (void);
 
 extern void registers_fetched (void);
@@ -76,6 +79,4 @@ extern void write_register (int regnum, LONGEST val);
 
 extern void write_register_pid (int regnum, CORE_ADDR val, ptid_t ptid);
 
-extern void supply_register (int regnum, char *val);
-
 #endif /* REGCACHE_H */

gdb/remote.c

@@ -3444,13 +3444,13 @@ store_register_using_P (int regno)
   struct remote_state *rs = get_remote_state ();
   /* Try storing a single register.  */
   char *buf = alloca (rs->remote_packet_size);
-  char *regp;
+  char *regp = alloca (MAX_REGISTER_RAW_SIZE);
   char *p;
   int i;
 
   sprintf (buf, "P%x=", regno);
   p = buf + strlen (buf);
-  regp = register_buffer (regno);
+  regcache_collect (regno, regp);
   bin2hex (regp, p, REGISTER_RAW_SIZE (regno));
   remote_send (buf, (rs->remote_packet_size));
 
@@ -3465,10 +3465,10 @@ static void
 remote_store_registers (int regno)
 {
   struct remote_state *rs = get_remote_state ();
-  char *buf = alloca (rs->remote_packet_size);
+  char *buf;
+  char *regs;
   int i;
   char *p;
-  char *regs;
 
   set_thread (PIDGET (inferior_ptid), 1);
 
@@ -3501,13 +3501,23 @@ remote_store_registers (int regno)
 	}
     }
 
-  buf[0] = 'G';
+  /* Extract all the registers in the regcache copying them into a
+     local buffer.  */
+  {
+    int i;
+    regs = alloca (REGISTER_BYTES);
+    memset (regs, REGISTER_BYTES, 0);
+    for (i = 0; i < NUM_REGS; i++)
+      {
+	regcache_collect (i, regs + REGISTER_BYTE (i));
+      }
+  }
 
   /* Command describes registers byte by byte,
      each byte encoded as two hex characters.  */
-
-  regs = register_buffer (-1);
-  p = buf + 1;
+  buf = alloca (rs->remote_packet_size);
+  p = buf;
+  *p++ = 'G';
   /* remote_prepare_to_store insures that register_bytes_found gets set.  */
   bin2hex (regs, p, register_bytes_found);
   remote_send (buf, (rs->remote_packet_size));