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, 6 insertions, 6 deletions

diff --git a/gdb/gdbserver/win32-low.c b/gdb/gdbserver/win32-low.c
index 2242d5c..ee99fe4 100644
--- a/gdb/gdbserver/win32-low.c
+++ b/gdb/gdbserver/win32-low.c
@@ -111,7 +111,7 @@ static void win32_add_all_dlls (void);
 /* Get the thread ID from the current selected inferior (the current
    thread).  */
 static ptid_t
-current_inferior_ptid (void)
+current_thread_ptid (void)
 {
   return current_ptid;
 }
@@ -461,7 +461,7 @@ static void
 child_fetch_inferior_registers (struct regcache *regcache, int r)
 {
   int regno;
-  win32_thread_info *th = thread_rec (current_inferior_ptid (), TRUE);
+  win32_thread_info *th = thread_rec (current_thread_ptid (), TRUE);
   if (r == -1 || r > NUM_REGS)
     child_fetch_inferior_registers (regcache, NUM_REGS);
   else
@@ -475,7 +475,7 @@ static void
 child_store_inferior_registers (struct regcache *regcache, int r)
 {
   int regno;
-  win32_thread_info *th = thread_rec (current_inferior_ptid (), TRUE);
+  win32_thread_info *th = thread_rec (current_thread_ptid (), TRUE);
   if (r == -1 || r == 0 || r > NUM_REGS)
     child_store_inferior_registers (regcache, NUM_REGS);
   else
@@ -1461,7 +1461,7 @@ get_child_debug_event (struct target_waitstatus *ourstatus)
       child_delete_thread (current_event.dwProcessId,
 			   current_event.dwThreadId);
 
-      current_inferior = (struct thread_info *) all_threads.head;
+      current_thread = (struct thread_info *) all_threads.head;
       return 1;
 
     case CREATE_PROCESS_DEBUG_EVENT:
@@ -1563,7 +1563,7 @@ get_child_debug_event (struct target_waitstatus *ourstatus)
     }
 
   ptid = debug_event_ptid (&current_event);
-  current_inferior =
+  current_thread =
     (struct thread_info *) find_inferior_id (&all_threads, ptid);
   return 1;
 }
@@ -1604,7 +1604,7 @@ win32_wait (ptid_t ptid, struct target_waitstatus *ourstatus, int options)
 	  OUTMSG2 (("Child Stopped with signal = %d \n",
 		    ourstatus->value.sig));
 
-	  regcache = get_thread_regcache (current_inferior, 1);
+	  regcache = get_thread_regcache (current_thread, 1);
 	  child_fetch_inferior_registers (regcache, -1);
 	  return debug_event_ptid (&current_event);
 	default: