gdbserver: turn target op 'process_qsupported' into a method

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

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

	* target.h (struct process_stratum_target): Remove the target op.
	(class process_target): Add the target op.
	(target_process_qsupported): Update the macro.
	* target.cc (process_target::process_qsupported): Define.

	Update the derived classes and callers below.

	* linux-low.cc (linux_target_ops): Update.
	(linux_process_qsupported): Turn into ...
	(linux_process_target::process_qsupported): ... 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, 35 insertions, 15 deletions

diff --git a/gdbserver/ChangeLog b/gdbserver/ChangeLog
index 0541c54..b8d2014 100644
--- a/gdbserver/ChangeLog
+++ b/gdbserver/ChangeLog
@@ -1,5 +1,25 @@
 2020-02-20  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>
 
+	Turn process_stratum_target's process_qsupported op into a method
+	of process_target.
+
+	* target.h (struct process_stratum_target): Remove the target op.
+	(class process_target): Add the target op.
+	(target_process_qsupported): Update the macro.
+	* target.cc (process_target::process_qsupported): Define.
+
+	Update the derived classes and callers below.
+
+	* linux-low.cc (linux_target_ops): Update.
+	(linux_process_qsupported): Turn into ...
+	(linux_process_target::process_qsupported): ... 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 read_loadmap op into a method of
 	process_target.
 
diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc
index 03de9e8..7927a18 100644
--- a/gdbserver/linux-low.cc
+++ b/gdbserver/linux-low.cc
@@ -6523,8 +6523,8 @@ linux_process_target::read_loadmap (const char *annex, CORE_ADDR offset,
 }
 #endif /* defined PT_GETDSBT || defined PTRACE_GETFDPIC */
 
-static void
-linux_process_qsupported (char **features, int count)
+void
+linux_process_target::process_qsupported (char **features, int count)
 {
   if (the_low_target.process_qsupported != NULL)
     the_low_target.process_qsupported (features, count);
@@ -7449,7 +7449,6 @@ linux_get_hwcap2 (int wordsize)
 static linux_process_target the_linux_target;
 
 static process_stratum_target linux_target_ops = {
-  linux_process_qsupported,
   linux_supports_tracepoints,
   linux_read_pc,
   linux_write_pc,
diff --git a/gdbserver/linux-low.h b/gdbserver/linux-low.h
index 9f4fdab..5c75ae4 100644
--- a/gdbserver/linux-low.h
+++ b/gdbserver/linux-low.h
@@ -384,6 +384,8 @@ public:
   int read_loadmap (const char *annex, CORE_ADDR offset,
 		    unsigned char *myaddr, unsigned int len) override;
 #endif
+
+  void process_qsupported (char **features, int count) 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 b384d20..c42a9b4 100644
--- a/gdbserver/lynx-low.cc
+++ b/gdbserver/lynx-low.cc
@@ -735,7 +735,6 @@ static lynx_process_target the_lynx_target;
 /* The LynxOS target_ops vector.  */
 
 static process_stratum_target lynx_target_ops = {
-  NULL,  /* process_qsupported */
   NULL,  /* supports_tracepoints */
   NULL,  /* read_pc */
   NULL,  /* write_pc */
diff --git a/gdbserver/nto-low.cc b/gdbserver/nto-low.cc
index 70d218c..86863f6 100644
--- a/gdbserver/nto-low.cc
+++ b/gdbserver/nto-low.cc
@@ -947,7 +947,6 @@ nto_sw_breakpoint_from_kind (int kind, int *size)
 static nto_process_target the_nto_target;
 
 static process_stratum_target nto_target_ops = {
-  NULL, /* process_qsupported */
   NULL, /* supports_tracepoints */
   NULL, /* read_pc */
   NULL, /* write_pc */
diff --git a/gdbserver/target.cc b/gdbserver/target.cc
index 26b9d8b..49e4b01 100644
--- a/gdbserver/target.cc
+++ b/gdbserver/target.cc
@@ -602,3 +602,9 @@ process_target::read_loadmap (const char *annex, CORE_ADDR offset,
 {
   gdb_assert_not_reached ("target op read_loadmap not supported");
 }
+
+void
+process_target::process_qsupported (char **features, int count)
+{
+  /* Nop.  */
+}
diff --git a/gdbserver/target.h b/gdbserver/target.h
index f69bd9d..61f13e3 100644
--- a/gdbserver/target.h
+++ b/gdbserver/target.h
@@ -70,10 +70,6 @@ class process_target;
    shared code.  */
 struct process_stratum_target
 {
-  /* Target specific qSupported support.  FEATURES is an array of
-     features with COUNT elements.  */
-  void (*process_qsupported) (char **features, int count);
-
   /* Return 1 if the target supports tracepoints, 0 (or leave the
      callback NULL) otherwise.  */
   int (*supports_tracepoints) (void);
@@ -489,6 +485,10 @@ public:
   /* Read loadmaps.  Read LEN bytes at OFFSET into a buffer at MYADDR.  */
   virtual int read_loadmap (const char *annex, CORE_ADDR offset,
 			    unsigned char *myaddr, unsigned int len);
+
+  /* Target specific qSupported support.  FEATURES is an array of
+     features with COUNT elements.  */
+  virtual void process_qsupported (char **features, int count);
 };
 
 extern process_stratum_target *the_target;
@@ -540,11 +540,7 @@ int kill_inferior (process_info *proc);
   the_target->pt->async (enable)
 
 #define target_process_qsupported(features, count)	\
-  do							\
-    {							\
-      if (the_target->process_qsupported)		\
-	the_target->process_qsupported (features, count); \
-    } while (0)
+  the_target->pt->process_qsupported (features, count)
 
 #define target_supports_catch_syscall()              	\
   (the_target->supports_catch_syscall ?			\
diff --git a/gdbserver/win32-low.cc b/gdbserver/win32-low.cc
index 9fc8825..f068091 100644
--- a/gdbserver/win32-low.cc
+++ b/gdbserver/win32-low.cc
@@ -1852,7 +1852,6 @@ win32_sw_breakpoint_from_kind (int kind, int *size)
 static win32_process_target the_win32_target;
 
 static process_stratum_target win32_target_ops = {
-  NULL, /* process_qsupported */
   NULL, /* supports_tracepoints */
   NULL, /* read_pc */
   NULL, /* write_pc */