Rename current_inferior as current_thread in gdbserver

GDB has a function named "current_inferior" and gdbserver has a global
variable named "current_inferior", but the two are not equivalent;
indeed, gdbserver does not have any real equivalent of what GDB calls
an inferior.  What gdbserver's "current_inferior" is actually pointing
to is a structure describing the current thread.  This commit renames
current_inferior as current_thread in gdbserver to clarify this.  It
also renames the function "set_desired_inferior" to "set_desired_thread"
and renames various local variables from foo_inferior to foo_thread.

gdb/gdbserver/ChangeLog:

	* inferiors.h (current_inferior): Renamed as...
	(current_thread): New variable.  All uses updated.
	* linux-low.c (get_pc): Renamed saved_inferior as saved_thread.
	(maybe_move_out_of_jump_pad): Likewise.
	(cancel_breakpoint): Likewise.
	(linux_low_filter_event): Likewise.
	(wait_for_sigstop): Likewise.
	(linux_resume_one_lwp): Likewise.
	(need_step_over_p): Likewise.
	(start_step_over): Likewise.
	(linux_stabilize_threads): Renamed save_inferior as saved_thread.
	* linux-x86-low.c (x86_linux_update_xmltarget): Likewise.
	* proc-service.c (ps_lgetregs): Renamed reg_inferior as reg_thread
	and save_inferior as saved_thread.
	* regcache.c (get_thread_regcache): Renamed saved_inferior as
	saved_thread.
	(regcache_invalidate_thread): Likewise.
	* remote-utils.c (prepare_resume_reply): Likewise.
	* thread-db.c (thread_db_get_tls_address): Likewise.
	(disable_thread_event_reporting): Likewise.
	(remove_thread_event_breakpoints): Likewise.
	* tracepoint.c (gdb_agent_about_to_close): Renamed save_inferior
	as saved_thread.
	* target.h (set_desired_inferior): Renamed as...
	(set_desired_thread): New declaration.  All uses updated.
	* server.c (myresume): Updated comment to reference thread instead
	of inferior.
	(handle_serial_event): Likewise.
	(handle_target_event): Likewise.

1 files changed, 7 insertions, 7 deletions

diff --git a/gdb/gdbserver/remote-utils.c b/gdb/gdbserver/remote-utils.c
index 81b9af3..373fc15 100644
--- a/gdb/gdbserver/remote-utils.c
+++ b/gdb/gdbserver/remote-utils.c
@@ -686,7 +686,7 @@ putpkt_binary_1 (char *buf, int cnt, int is_notif)
 	}
 
       /* Check for an input interrupt while we're here.  */
-      if (cc == '\003' && current_inferior != NULL)
+      if (cc == '\003' && current_thread != NULL)
 	(*the_target->request_interrupt) ();
     }
   while (cc != '+');
@@ -741,7 +741,7 @@ input_interrupt (int unused)
 
       cc = read_prim (&c, 1);
 
-      if (cc != 1 || c != '\003' || current_inferior == NULL)
+      if (cc != 1 || c != '\003' || current_thread == NULL)
 	{
 	  fprintf (stderr, "input_interrupt, count = %d c = %d ('%c')\n",
 		   cc, c, c);
@@ -1106,20 +1106,20 @@ prepare_resume_reply (char *buf, ptid_t ptid,
     {
     case TARGET_WAITKIND_STOPPED:
       {
-	struct thread_info *saved_inferior;
+	struct thread_info *saved_thread;
 	const char **regp;
 	struct regcache *regcache;
 
 	sprintf (buf, "T%02x", status->value.sig);
 	buf += strlen (buf);
 
-	saved_inferior = current_inferior;
+	saved_thread = current_thread;
 
-	current_inferior = find_thread_ptid (ptid);
+	current_thread = find_thread_ptid (ptid);
 
 	regp = current_target_desc ()->expedite_regs;
 
-	regcache = get_thread_regcache (current_inferior, 1);
+	regcache = get_thread_regcache (current_thread, 1);
 
 	if (the_target->stopped_by_watchpoint != NULL
 	    && (*the_target->stopped_by_watchpoint) ())
@@ -1196,7 +1196,7 @@ prepare_resume_reply (char *buf, ptid_t ptid,
 	    dlls_changed = 0;
 	  }
 
-	current_inferior = saved_inferior;
+	current_thread = saved_thread;
       }
       break;
     case TARGET_WAITKIND_EXITED: