[1/3] constify to_rcmd

diff --git a/gdb/monitor.c b/gdb/monitor.c
index 25742ac..4a57d5e 100644
--- a/gdb/monitor.c
+++ b/gdb/monitor.c
@@ -2282,7 +2282,7 @@  monitor_stop (struct target_ops *self, ptid_t ptid)
    ourseleves here cause of a nasty echo.  */
 
 static void
-monitor_rcmd (struct target_ops *self, char *command,
+monitor_rcmd (struct target_ops *self, const char *command,
 	      struct ui_file *outbuf)
 {
   char *p;
diff --git a/gdb/remote.c b/gdb/remote.c
index d5e5272..43e25ae 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -8988,7 +8988,7 @@  remote_search_memory (struct target_ops* ops,
 }
 
 static void
-remote_rcmd (struct target_ops *self, char *command,
+remote_rcmd (struct target_ops *self, const char *command,
 	     struct ui_file *outbuf)
 {
   struct remote_state *rs = get_remote_state ();
@@ -9010,7 +9010,7 @@  remote_rcmd (struct target_ops *self, char *command,
     error (_("\"monitor\" command ``%s'' is too long."), command);
 
   /* Encode the actual command.  */
-  bin2hex ((gdb_byte *) command, p, strlen (command));
+  bin2hex ((const gdb_byte *) command, p, strlen (command));
 
   if (putpkt (rs->buf) < 0)
     error (_("Communication problem with target."));
diff --git a/gdb/target-delegates.c b/gdb/target-delegates.c
index e6fbb44..522d52b 100644
--- a/gdb/target-delegates.c
+++ b/gdb/target-delegates.c
@@ -631,7 +631,7 @@  tdefault_stop (struct target_ops *self, ptid_t arg1)
 }
 
 static void
-delegate_rcmd (struct target_ops *self, char *arg1, struct ui_file *arg2)
+delegate_rcmd (struct target_ops *self, const char *arg1, struct ui_file *arg2)
 {
   self = self->beneath;
   self->to_rcmd (self, arg1, arg2);
diff --git a/gdb/target.c b/gdb/target.c
index f73ab3c..a9255d7 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -57,7 +57,7 @@  static int default_watchpoint_addr_within_range (struct target_ops *,
 static int default_region_ok_for_hw_watchpoint (struct target_ops *,
 						CORE_ADDR, int);
 
-static void default_rcmd (struct target_ops *, char *, struct ui_file *);
+static void default_rcmd (struct target_ops *, const char *, struct ui_file *);
 
 static ptid_t default_get_ada_task_ptid (struct target_ops *self,
 					 long lwp, long tid);
@@ -4006,7 +4006,7 @@  debug_to_stop (struct target_ops *self, ptid_t ptid)
 }
 
 static void
-debug_to_rcmd (struct target_ops *self, char *command,
+debug_to_rcmd (struct target_ops *self, const char *command,
 	       struct ui_file *outbuf)
 {
   debug_target.to_rcmd (&debug_target, command, outbuf);
@@ -4080,7 +4080,8 @@  stack of targets currently in use (including the exec-file,\n\
 core-file, and process, if any), as well as the symbol file name.";
 
 static void
-default_rcmd (struct target_ops *self, char *command, struct ui_file *output)
+default_rcmd (struct target_ops *self, const char *command,
+	      struct ui_file *output)
 {
   error (_("\"monitor\" command not supported by this target."));
 }
diff --git a/gdb/target.h b/gdb/target.h
index cd5a799..87d2a83 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -560,7 +560,7 @@  struct target_ops
     void (*to_stop) (struct target_ops *, ptid_t)
       TARGET_DEFAULT_IGNORE ();
     void (*to_rcmd) (struct target_ops *,
-		     char *command, struct ui_file *output)
+		     const char *command, struct ui_file *output)
       TARGET_DEFAULT_FUNC (default_rcmd);
     char *(*to_pid_to_exec_file) (struct target_ops *, int pid)
       TARGET_DEFAULT_RETURN (NULL);