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, 8 insertions, 8 deletions

diff --git a/gdb/gdbserver/lynx-low.c b/gdb/gdbserver/lynx-low.c
index 0b0ff47..96dea03 100644
--- a/gdb/gdbserver/lynx-low.c
+++ b/gdb/gdbserver/lynx-low.c
@@ -338,9 +338,9 @@ lynx_resume (struct thread_resume *resume_info, size_t n)
   /* The ptid might still be minus_one_ptid; this can happen between
      the moment we create the inferior or attach to a process, and
      the moment we resume its execution for the first time.  It is
-     fine to use the current_inferior's ptid in those cases.  */
+     fine to use the current_thread's ptid in those cases.  */
   if (ptid_equal (ptid, minus_one_ptid))
-    ptid = thread_to_gdb_id (current_inferior);
+    ptid = thread_to_gdb_id (current_thread);
 
   regcache_invalidate ();
 
@@ -413,7 +413,7 @@ lynx_wait_1 (ptid_t ptid, struct target_waitstatus *status, int options)
   ptid_t new_ptid;
 
   if (ptid_equal (ptid, minus_one_ptid))
-    pid = lynx_ptid_get_pid (thread_to_gdb_id (current_inferior));
+    pid = lynx_ptid_get_pid (thread_to_gdb_id (current_thread));
   else
     pid = BUILDPID (lynx_ptid_get_pid (ptid), lynx_ptid_get_tid (ptid));
 
@@ -582,7 +582,7 @@ static void
 lynx_fetch_registers (struct regcache *regcache, int regno)
 {
   struct lynx_regset_info *regset = lynx_target_regsets;
-  ptid_t inferior_ptid = thread_to_gdb_id (current_inferior);
+  ptid_t inferior_ptid = thread_to_gdb_id (current_thread);
 
   lynx_debug ("lynx_fetch_registers (regno = %d)", regno);
 
@@ -607,7 +607,7 @@ static void
 lynx_store_registers (struct regcache *regcache, int regno)
 {
   struct lynx_regset_info *regset = lynx_target_regsets;
-  ptid_t inferior_ptid = thread_to_gdb_id (current_inferior);
+  ptid_t inferior_ptid = thread_to_gdb_id (current_thread);
 
   lynx_debug ("lynx_store_registers (regno = %d)", regno);
 
@@ -643,7 +643,7 @@ lynx_read_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
   int buf;
   const int xfer_size = sizeof (buf);
   CORE_ADDR addr = memaddr & -(CORE_ADDR) xfer_size;
-  ptid_t inferior_ptid = thread_to_gdb_id (current_inferior);
+  ptid_t inferior_ptid = thread_to_gdb_id (current_thread);
 
   while (addr < memaddr + len)
     {
@@ -676,7 +676,7 @@ lynx_write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, int len)
   int buf;
   const int xfer_size = sizeof (buf);
   CORE_ADDR addr = memaddr & -(CORE_ADDR) xfer_size;
-  ptid_t inferior_ptid = thread_to_gdb_id (current_inferior);
+  ptid_t inferior_ptid = thread_to_gdb_id (current_thread);
 
   while (addr < memaddr + len)
     {
@@ -710,7 +710,7 @@ lynx_write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, int len)
 static void
 lynx_request_interrupt (void)
 {
-  ptid_t inferior_ptid = thread_to_gdb_id (current_inferior);
+  ptid_t inferior_ptid = thread_to_gdb_id (current_thread);
 
   kill (lynx_ptid_get_pid (inferior_ptid), SIGINT);
 }