gdbserver: turn target op 'get_tib_address' into a method

gdbserver/ChangeLog:
2020-02-20  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>

	Turn process_stratum_target's get_tib_address op into a method of
	process_target.

	* target.h (struct process_stratum_target): Remove the target op.
	(class process_target): Add the target op.  Also add
	'supports_get_tib_address'.
	* target.cc (process_target::get_tib_address): Define.
	(process_target::supports_get_tib_address): Define.

	Update the derived classes and callers below.

	* server.cc (handle_query): Update.
	* linux-low.cc (win32_target_ops): Update.
	* lynx-low.cc (lynx_target_ops): Update.
	* nto-low.cc (nto_target_ops): Update.
	* win32-low.cc (win32_target_ops): Update.
	(win32_process_target::supports_get_tib_address): Define.
	(win32_get_tib_address): Turn into ...
	(win32_process_target::get_tib_address): ... this.
	* win32-low.h (class win32_process_target): Update.

1 files changed, 6 insertions, 3 deletions

diff --git a/gdbserver/target.h b/gdbserver/target.h
index 49d5eca479e..4da15a06734 100644
--- a/gdbserver/target.h
+++ b/gdbserver/target.h
@@ -70,9 +70,6 @@ class process_target;
    shared code.  */
 struct process_stratum_target
 {
-  /* Read Thread Information Block address.  */
-  int (*get_tib_address) (ptid_t ptid, CORE_ADDR *address);
-
   /* Pause all threads.  If FREEZE, arrange for any resume attempt to
      be ignored until an unpause_all call unfreezes threads again.
      There can be nested calls to pause_all, so a freeze counter
@@ -491,6 +488,12 @@ public:
 
   /* Return true if THREAD is known to be stopped now.  */
   virtual bool thread_stopped (thread_info *thread);
+
+  /* Return true if the get_tib_address op is supported.  */
+  virtual bool supports_get_tib_address ();
+
+  /* Read Thread Information Block address.  */
+  virtual int get_tib_address (ptid_t ptid, CORE_ADDR *address);
 };
 
 extern process_stratum_target *the_target;