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, 5 insertions, 5 deletions

diff --git a/gdb/gdbserver/linux-crisv32-low.c b/gdb/gdbserver/linux-crisv32-low.c
index 203b1ba..aaefe50 100644
--- a/gdb/gdbserver/linux-crisv32-low.c
+++ b/gdb/gdbserver/linux-crisv32-low.c
@@ -103,7 +103,7 @@ cris_breakpoint_at (CORE_ADDR where)
 static CORE_ADDR
 cris_reinsert_addr (void)
 {
-  struct regcache *regcache = get_thread_regcache (current_inferior, 1);
+  struct regcache *regcache = get_thread_regcache (current_thread, 1);
   unsigned long pc;
   collect_register_by_name (regcache, "srp", &pc);
   return pc;
@@ -166,7 +166,7 @@ cris_insert_point (enum raw_bkpt_type type, CORE_ADDR addr,
   unsigned long ccs;
   struct regcache *regcache;
 
-  regcache = get_thread_regcache (current_inferior, 1);
+  regcache = get_thread_regcache (current_thread, 1);
 
   /* Read watchpoints are set as access watchpoints, because of GDB's
      inability to deal with pure read watchpoints.  */
@@ -239,7 +239,7 @@ cris_remove_point (enum raw_bkpt_type type, CORE_ADDR addr, int len,
   struct regcache *regcache;
   unsigned long bp_d_regs[12];
 
-  regcache = get_thread_regcache (current_inferior, 1);
+  regcache = get_thread_regcache (current_thread, 1);
 
   /* Read watchpoints are set as access watchpoints, because of GDB's
      inability to deal with pure read watchpoints.  */
@@ -316,7 +316,7 @@ static int
 cris_stopped_by_watchpoint (void)
 {
   unsigned long exs;
-  struct regcache *regcache = get_thread_regcache (current_inferior, 1);
+  struct regcache *regcache = get_thread_regcache (current_thread, 1);
 
   collect_register_by_name (regcache, "exs", &exs);
 
@@ -327,7 +327,7 @@ static CORE_ADDR
 cris_stopped_data_address (void)
 {
   unsigned long eda;
-  struct regcache *regcache = get_thread_regcache (current_inferior, 1);
+  struct regcache *regcache = get_thread_regcache (current_thread, 1);
 
   collect_register_by_name (regcache, "eda", &eda);