gdbserver: turn target op 'resume' into a method

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

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

	* target.h (struct process_stratum_target): Remove the target op.
	(class process_target): Add the target op.

	Update the derived classes and callers below.

	* server.cc (resume): Update.
	* target.cc (target_stop_and_wait): Update.
	(target_continue_no_signal): Update.
	(target_continue): Update.
	* linux-low.cc (linux_target_ops): Update.
	(linux_resume): Turn into ...
	(linux_process_target::resume): ... this.
	* linux-low.h (class linux_process_target): Update.
	* lynx-low.cc (lynx_target_ops): Update.
	(lynx_resume): Turn into ...
	(lynx_process_target::resume): ... this.
	* lynx-low.h (class lynx_process_target): Update.
	* nto-low.cc (nto_target_ops): Update.
	(nto_resume): Turn into ...
	(nto_process_target::resume): ... this.
	* nto-low.h (class nto_process_target): Update.
	* win32-low.cc (win32_target_ops): Update.
	(win32_resume): Turn into ...
	(win32_process_target::resume): ... this.
	(win32_process_target::detach): Update.
	(do_initial_child_stuff): Update.
	* win32-low.h (class win32_process_target): Update.

gdbserver/ChangeLog

@@ -1,3 +1,36 @@
+2020-02-20  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>
+
+	Turn process_stratum_target's resume op into a method of
+	process_target.
+
+	* target.h (struct process_stratum_target): Remove the target op.
+	(class process_target): Add the target op.
+
+	Update the derived classes and callers below.
+
+	* server.cc (resume): Update.
+	* target.cc (target_stop_and_wait): Update.
+	(target_continue_no_signal): Update.
+	(target_continue): Update.
+	* linux-low.cc (linux_target_ops): Update.
+	(linux_resume): Turn into ...
+	(linux_process_target::resume): ... this.
+	* linux-low.h (class linux_process_target): Update.
+	* lynx-low.cc (lynx_target_ops): Update.
+	(lynx_resume): Turn into ...
+	(lynx_process_target::resume): ... this.
+	* lynx-low.h (class lynx_process_target): Update.
+	* nto-low.cc (nto_target_ops): Update.
+	(nto_resume): Turn into ...
+	(nto_process_target::resume): ... this.
+	* nto-low.h (class nto_process_target): Update.
+	* win32-low.cc (win32_target_ops): Update.
+	(win32_resume): Turn into ...
+	(win32_process_target::resume): ... this.
+	(win32_process_target::detach): Update.
+	(do_initial_child_stuff): Update.
+	* win32-low.h (class win32_process_target): Update.
+
 2020-02-20  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>
 
 	Turn process_stratum_target's thread_alive op into a method of

gdbserver/linux-low.cc

@@ -262,7 +262,6 @@ static int stabilizing_threads;
 
 static void linux_resume_one_lwp (struct lwp_info *lwp,
 				  int step, int signal, siginfo_t *info);
-static void linux_resume (struct thread_resume *resume_info, size_t n);
 static void stop_all_lwps (int suspend, struct lwp_info *except);
 static void unstop_all_lwps (int unsuspend, struct lwp_info *except);
 static void unsuspend_all_lwps (struct lwp_info *except);
@@ -5002,8 +5001,8 @@ linux_resume_one_thread (thread_info *thread, bool leave_all_stopped)
   lwp->resume = NULL;
 }
 
-static void
+void
-linux_resume (struct thread_resume *resume_info, size_t n)
+linux_process_target::resume (thread_resume *resume_info, size_t n)
 {
   struct thread_info *need_step_over = NULL;
 
@@ -7359,7 +7358,6 @@ linux_get_hwcap2 (int wordsize)
 static linux_process_target the_linux_target;
 
 static process_stratum_target linux_target_ops = {
-  linux_resume,
   linux_wait,
   linux_fetch_registers,
   linux_store_registers,

gdbserver/linux-low.h

@@ -286,6 +286,8 @@ public:
   void join (int pid) override;
 
   bool thread_alive (ptid_t pid) override;
+
+  void resume (thread_resume *resume_info, size_t n) override;
 };
 
 #define get_thread_lwp(thr) ((struct lwp_info *) (thread_target_data (thr)))

gdbserver/lynx-low.cc

@@ -326,8 +326,8 @@ lynx_process_target::attach (unsigned long pid)
 
 /* Implement the resume target_ops method.  */
 
-static void
+void
-lynx_resume (struct thread_resume *resume_info, size_t n)
+lynx_process_target::resume (thread_resume *resume_info, size_t n)
 {
   ptid_t ptid = resume_info[0].thread;
   const int request
@@ -726,7 +726,6 @@ static lynx_process_target the_lynx_target;
 /* The LynxOS target_ops vector.  */
 
 static process_stratum_target lynx_target_ops = {
-  lynx_resume,
   lynx_wait,
   lynx_fetch_registers,
   lynx_store_registers,

gdbserver/lynx-low.h

@@ -72,6 +72,8 @@ public:
   void join (int pid) override;
 
   bool thread_alive (ptid_t pid) override;
+
+  void resume (thread_resume *resume_info, size_t n) override;
 };
 
 /* The inferior's target description.  This is a global because the

gdbserver/nto-low.cc

@@ -451,8 +451,8 @@ nto_process_target::thread_alive (ptid_t ptid)
 
 /* Resume inferior's execution.  */
 
-static void
+void
-nto_resume (struct thread_resume *resume_info, size_t n)
+nto_process_target::resume (thread_resume *resume_info, size_t n)
 {
   /* We can only work in all-stop mode.  */
   procfs_status status;
@@ -941,7 +941,6 @@ nto_sw_breakpoint_from_kind (int kind, int *size)
 static nto_process_target the_nto_target;
 
 static process_stratum_target nto_target_ops = {
-  nto_resume,
   nto_wait,
   nto_fetch_registers,
   nto_store_registers,

gdbserver/nto-low.h

@@ -62,6 +62,8 @@ public:
   void join (int pid) override;
 
   bool thread_alive (ptid_t pid) override;
+
+  void resume (thread_resume *resume_info, size_t n) override;
 };
 
 /* The inferior's target description.  This is a global because the

gdbserver/server.cc

@@ -2847,7 +2847,7 @@ resume (struct thread_resume *actions, size_t num_actions)
       enable_async_io ();
     }
 
-  (*the_target->resume) (actions, num_actions);
+  the_target->pt->resume (actions, num_actions);
 
   if (non_stop)
     write_ok (cs.own_buf);

gdbserver/target.cc

@@ -211,7 +211,7 @@ target_stop_and_wait (ptid_t ptid)
   resume_info.thread = ptid;
   resume_info.kind = resume_stop;
   resume_info.sig = GDB_SIGNAL_0;
-  (*the_target->resume) (&resume_info, 1);
+  the_target->pt->resume (&resume_info, 1);
 
   non_stop = true;
   mywait (ptid, &status, 0, 0);
@@ -244,7 +244,7 @@ target_continue_no_signal (ptid_t ptid)
   resume_info.thread = ptid;
   resume_info.kind = resume_continue;
   resume_info.sig = GDB_SIGNAL_0;
-  (*the_target->resume) (&resume_info, 1);
+  the_target->pt->resume (&resume_info, 1);
 }
 
 /* See target/target.h.  */
@@ -257,7 +257,7 @@ target_continue (ptid_t ptid, enum gdb_signal signal)
   resume_info.thread = ptid;
   resume_info.kind = resume_continue;
   resume_info.sig = gdb_signal_to_host (signal);
-  (*the_target->resume) (&resume_info, 1);
+  the_target->pt->resume (&resume_info, 1);
 }
 
 /* See target/target.h.  */

gdbserver/target.h

@@ -70,10 +70,6 @@ class process_target;
    shared code.  */
 struct process_stratum_target
 {
-  /* Resume the inferior process.  */
-
-  void (*resume) (struct thread_resume *resume_info, size_t n);
-
   /* Wait for the inferior process or thread to change state.  Store
      status through argument pointer STATUS.
 
@@ -483,6 +479,9 @@ public:
 
   /* Return true iff the thread with process ID PID is alive.  */
   virtual bool thread_alive (ptid_t pid) = 0;
+
+  /* Resume the inferior process.  */
+  virtual void resume (thread_resume *resume_info, size_t n) = 0;
 };
 
 extern process_stratum_target *the_target;

gdbserver/win32-low.cc

@@ -105,7 +105,6 @@ typedef BOOL (WINAPI *winapi_GenerateConsoleCtrlEvent) (DWORD, DWORD);
 
 static ptid_t win32_wait (ptid_t ptid, struct target_waitstatus *ourstatus,
 			  int options);
-static void win32_resume (struct thread_resume *resume_info, size_t n);
 #ifndef _WIN32_WCE
 static void win32_add_all_dlls (void);
 #endif
@@ -396,7 +395,7 @@ do_initial_child_stuff (HANDLE proch, DWORD pid, int attached)
 	resume.kind = resume_continue;
 	resume.sig = 0;
 
-	win32_resume (&resume, 1);
+	the_target->pt->resume (&resume, 1);
       }
     }
 
@@ -865,7 +864,7 @@ win32_process_target::detach (process_info *process)
     resume.thread = minus_one_ptid;
     resume.kind = resume_continue;
     resume.sig = 0;
-    win32_resume (&resume, 1);
+    this->resume (&resume, 1);
   }
 
   if (!DebugActiveProcessStop (current_process_id))
@@ -908,8 +907,8 @@ win32_process_target::thread_alive (ptid_t ptid)
 
 /* Resume the inferior process.  RESUME_INFO describes how we want
    to resume.  */
-static void
+void
-win32_resume (struct thread_resume *resume_info, size_t n)
+win32_process_target::resume (thread_resume *resume_info, size_t n)
 {
   DWORD tid;
   enum gdb_signal sig;
@@ -1839,7 +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 = {
-  win32_resume,
   win32_wait,
   win32_fetch_inferior_registers,
   win32_store_inferior_registers,

gdbserver/win32-low.h

@@ -121,6 +121,8 @@ public:
   void join (int pid) override;
 
   bool thread_alive (ptid_t pid) override;
+
+  void resume (thread_resume *resume_info, size_t n) override;
 };
 
 /* Retrieve the context for this thread, if not already retrieved.  */