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/proc-service.c b/gdb/gdbserver/proc-service.c
index 5a6dc4e..dcaf013 100644
--- a/gdb/gdbserver/proc-service.c
+++ b/gdb/gdbserver/proc-service.c
@@ -101,20 +101,20 @@ ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, prgregset_t gregset)
 {
 #ifdef HAVE_REGSETS
   struct lwp_info *lwp;
-  struct thread_info *reg_inferior, *save_inferior;
+  struct thread_info *reg_thread, *saved_thread;
   struct regcache *regcache;
 
   lwp = find_lwp_pid (pid_to_ptid (lwpid));
   if (lwp == NULL)
     return PS_ERR;
 
-  reg_inferior = get_lwp_thread (lwp);
-  save_inferior = current_inferior;
-  current_inferior = reg_inferior;
-  regcache = get_thread_regcache (current_inferior, 1);
+  reg_thread = get_lwp_thread (lwp);
+  saved_thread = current_thread;
+  current_thread = reg_thread;
+  regcache = get_thread_regcache (current_thread, 1);
   gregset_info ()->fill_function (regcache, gregset);
 
-  current_inferior = save_inferior;
+  current_thread = saved_thread;
   return PS_OK;
 #else
   return PS_ERR;
@@ -157,5 +157,5 @@ ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, void *fpregset)
 pid_t
 ps_getpid (gdb_ps_prochandle_t ph)
 {
-  return pid_of (current_inferior);
+  return pid_of (current_thread);
 }