gdbserver: turn target op '{supports_}stopped_by_sw_breakpoint' into a method

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

	Turn process_stratum_target's {supports_}stopped_by_sw_breakpoint
	ops into methods of process_target.

	* target.h (struct process_stratum_target): Remove the target ops.
	(class process_target): Add the target ops.
	(target_stopped_by_sw_breakpoint): Update the macro.
	(target_supports_stopped_by_sw_breakpoint): Update the macro.
	* target.cc (process_target::stopped_by_sw_breakpoint): Define.
	(process_target::supports_stopped_by_sw_breakpoint): Define.

	Update the derived classes and callers below.

	* linux-low.cc (linux_target_ops): Update.
	(linux_stopped_by_sw_breakpoint): Turn into ...
	(linux_process_target::stopped_by_sw_breakpoint): ... this.
	(linux_supports_stopped_by_sw_breakpoint): Turn into ...
	(linux_process_target::supports_stopped_by_sw_breakpoint): ... this.
	* linux-low.h (class linux_process_target): Update.
	* lynx-low.cc (lynx_target_ops): Update.
	* nto-low.cc (nto_target_ops): Update.
	* win32-low.cc (win32_target_ops): Update.

8 files changed, 56 insertions, 26 deletions

diff --git a/gdbserver/ChangeLog b/gdbserver/ChangeLog
index 2d613f6..55063df 100644
--- a/gdbserver/ChangeLog
+++ b/gdbserver/ChangeLog
@@ -1,5 +1,29 @@
 2020-02-20  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>
 
+	Turn process_stratum_target's {supports_}stopped_by_sw_breakpoint
+	ops into methods of process_target.
+
+	* target.h (struct process_stratum_target): Remove the target ops.
+	(class process_target): Add the target ops.
+	(target_stopped_by_sw_breakpoint): Update the macro.
+	(target_supports_stopped_by_sw_breakpoint): Update the macro.
+	* target.cc (process_target::stopped_by_sw_breakpoint): Define.
+	(process_target::supports_stopped_by_sw_breakpoint): Define.
+
+	Update the derived classes and callers below.
+
+	* linux-low.cc (linux_target_ops): Update.
+	(linux_stopped_by_sw_breakpoint): Turn into ...
+	(linux_process_target::stopped_by_sw_breakpoint): ... this.
+	(linux_supports_stopped_by_sw_breakpoint): Turn into ...
+	(linux_process_target::supports_stopped_by_sw_breakpoint): ... this.
+	* linux-low.h (class linux_process_target): Update.
+	* lynx-low.cc (lynx_target_ops): Update.
+	* nto-low.cc (nto_target_ops): Update.
+	* win32-low.cc (win32_target_ops): Update.
+
+2020-02-20  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>
+
 	Turn process_stratum_target's insert_point and remove_point ops
 	into methods of process_target.
 
diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc
index 96692cd..b1cba91 100644
--- a/gdbserver/linux-low.cc
+++ b/gdbserver/linux-low.cc
@@ -5990,22 +5990,22 @@ linux_process_target::remove_point (enum raw_bkpt_type type, CORE_ADDR addr,
     return 1;
 }
 
-/* Implement the to_stopped_by_sw_breakpoint target_ops
+/* Implement the stopped_by_sw_breakpoint target_ops
    method.  */
 
-static int
-linux_stopped_by_sw_breakpoint (void)
+bool
+linux_process_target::stopped_by_sw_breakpoint ()
 {
   struct lwp_info *lwp = get_thread_lwp (current_thread);
 
   return (lwp->stop_reason == TARGET_STOPPED_BY_SW_BREAKPOINT);
 }
 
-/* Implement the to_supports_stopped_by_sw_breakpoint target_ops
+/* Implement the supports_stopped_by_sw_breakpoint target_ops
    method.  */
 
-static int
-linux_supports_stopped_by_sw_breakpoint (void)
+bool
+linux_process_target::supports_stopped_by_sw_breakpoint ()
 {
   return USE_SIGTRAP_SIGINFO;
 }
@@ -7376,8 +7376,6 @@ linux_get_hwcap2 (int wordsize)
 static linux_process_target the_linux_target;
 
 static process_stratum_target linux_target_ops = {
-  linux_stopped_by_sw_breakpoint,
-  linux_supports_stopped_by_sw_breakpoint,
   linux_stopped_by_hw_breakpoint,
   linux_supports_stopped_by_hw_breakpoint,
   linux_supports_hardware_single_step,
diff --git a/gdbserver/linux-low.h b/gdbserver/linux-low.h
index 6d58d66..bb9c4b0 100644
--- a/gdbserver/linux-low.h
+++ b/gdbserver/linux-low.h
@@ -322,6 +322,10 @@ public:
 
   int remove_point (enum raw_bkpt_type type, CORE_ADDR addr,
 		    int size, raw_breakpoint *bp) override;
+
+  bool stopped_by_sw_breakpoint () override;
+
+  bool supports_stopped_by_sw_breakpoint () override;
 };
 
 #define get_thread_lwp(thr) ((struct lwp_info *) (thread_target_data (thr)))
diff --git a/gdbserver/lynx-low.cc b/gdbserver/lynx-low.cc
index dc864e8..0bb7e00 100644
--- a/gdbserver/lynx-low.cc
+++ b/gdbserver/lynx-low.cc
@@ -729,8 +729,6 @@ static lynx_process_target the_lynx_target;
 /* The LynxOS target_ops vector.  */
 
 static process_stratum_target lynx_target_ops = {
-  NULL,  /* stopped_by_sw_breakpoint */
-  NULL,  /* supports_stopped_by_sw_breakpoint */
   NULL,  /* stopped_by_hw_breakpoint */
   NULL,  /* supports_stopped_by_hw_breakpoint */
   target_can_do_hardware_single_step,
diff --git a/gdbserver/nto-low.cc b/gdbserver/nto-low.cc
index 56d3462..5912ee9 100644
--- a/gdbserver/nto-low.cc
+++ b/gdbserver/nto-low.cc
@@ -950,8 +950,6 @@ nto_sw_breakpoint_from_kind (int kind, int *size)
 static nto_process_target the_nto_target;
 
 static process_stratum_target nto_target_ops = {
-  NULL, /* stopped_by_sw_breakpoint */
-  NULL, /* supports_stopped_by_sw_breakpoint */
   NULL, /* stopped_by_hw_breakpoint */
   NULL, /* supports_stopped_by_hw_breakpoint */
   target_can_do_hardware_single_step,
diff --git a/gdbserver/target.cc b/gdbserver/target.cc
index fd443ef..70630db 100644
--- a/gdbserver/target.cc
+++ b/gdbserver/target.cc
@@ -447,3 +447,15 @@ process_target::remove_point (enum raw_bkpt_type type, CORE_ADDR addr,
 {
   return 1;
 }
+
+bool
+process_target::stopped_by_sw_breakpoint ()
+{
+  return false;
+}
+
+bool
+process_target::supports_stopped_by_sw_breakpoint ()
+{
+  return false;
+}
diff --git a/gdbserver/target.h b/gdbserver/target.h
index f04c1c1..563884f 100644
--- a/gdbserver/target.h
+++ b/gdbserver/target.h
@@ -70,14 +70,6 @@ class process_target;
    shared code.  */
 struct process_stratum_target
 {
-  /* Returns 1 if the target stopped because it executed a software
-     breakpoint instruction, 0 otherwise.  */
-  int (*stopped_by_sw_breakpoint) (void);
-
-  /* Returns true if the target knows whether a trap was caused by a
-     SW breakpoint triggering.  */
-  int (*supports_stopped_by_sw_breakpoint) (void);
-
   /* Returns 1 if the target stopped for a hardware breakpoint.  */
   int (*stopped_by_hw_breakpoint) (void);
 
@@ -476,6 +468,14 @@ public:
 
   virtual int remove_point (enum raw_bkpt_type type, CORE_ADDR addr,
 			    int size, raw_breakpoint *bp);
+
+  /* Returns true if the target stopped because it executed a software
+     breakpoint instruction, false otherwise.  */
+  virtual bool stopped_by_sw_breakpoint ();
+
+  /* Returns true if the target knows whether a trap was caused by a
+     SW breakpoint triggering.  */
+  virtual bool supports_stopped_by_sw_breakpoint ();
 };
 
 extern process_stratum_target *the_target;
@@ -659,12 +659,10 @@ target_read_btrace_conf (struct btrace_target_info *tinfo,
    (*the_target->supports_range_stepping) () : 0)
 
 #define target_supports_stopped_by_sw_breakpoint() \
-  (the_target->supports_stopped_by_sw_breakpoint ? \
-   (*the_target->supports_stopped_by_sw_breakpoint) () : 0)
+  the_target->pt->supports_stopped_by_sw_breakpoint ()
 
 #define target_stopped_by_sw_breakpoint() \
-  (the_target->stopped_by_sw_breakpoint ? \
-   (*the_target->stopped_by_sw_breakpoint) () : 0)
+  the_target->pt->stopped_by_sw_breakpoint ()
 
 #define target_supports_stopped_by_hw_breakpoint() \
   (the_target->supports_stopped_by_hw_breakpoint ? \
diff --git a/gdbserver/win32-low.cc b/gdbserver/win32-low.cc
index c42d8d7..6f8b51f 100644
--- a/gdbserver/win32-low.cc
+++ b/gdbserver/win32-low.cc
@@ -1838,8 +1838,6 @@ win32_sw_breakpoint_from_kind (int kind, int *size)
 static win32_process_target the_win32_target;
 
 static process_stratum_target win32_target_ops = {
-  NULL, /* stopped_by_sw_breakpoint */
-  NULL, /* supports_stopped_by_sw_breakpoint */
   NULL, /* stopped_by_hw_breakpoint */
   NULL, /* supports_stopped_by_hw_breakpoint */
   target_can_do_hardware_single_step,