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/inferiors.c b/gdb/gdbserver/inferiors.c
index 29a07e0..379c51d 100644
--- a/gdb/gdbserver/inferiors.c
+++ b/gdb/gdbserver/inferiors.c
@@ -25,7 +25,7 @@
 struct inferior_list all_processes;
 struct inferior_list all_threads;
 
-struct thread_info *current_inferior;
+struct thread_info *current_thread;
 
 #define get_thread(inf) ((struct thread_info *)(inf))
 
@@ -115,8 +115,8 @@ add_thread (ptid_t thread_id, void *target_data)
 
   add_inferior_to_list (&all_threads, &new_thread->entry);
 
-  if (current_inferior == NULL)
-    current_inferior = new_thread;
+  if (current_thread == NULL)
+    current_thread = new_thread;
 
   new_thread->target_data = target_data;
 
@@ -267,7 +267,7 @@ clear_inferiors (void)
 
   clear_dlls ();
 
-  current_inferior = NULL;
+  current_thread = NULL;
 }
 
 struct process_info *
@@ -355,6 +355,6 @@ get_thread_process (struct thread_info *thread)
 struct process_info *
 current_process (void)
 {
-  gdb_assert (current_inferior != NULL);
-  return get_thread_process (current_inferior);
+  gdb_assert (current_thread != NULL);
+  return get_thread_process (current_thread);
 }