[PATCH v2 16/58] gdbserver: turn target op 'request_interrupt' into a method

[Tankut Baris Aktemur <tankut.baris.aktemur@intel.com>]

gdbserver/ChangeLog:
2020-02-10  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>

	Turn process_stratum_target's request_interrupt 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.

	* remote-utils.cc (putpkt_binary_1): Update.
	(input_interrupt): Update.
	(getpkt): Update.
	* server.cc (handle_v_requests): Update.
	* linux-low.cc (linux_target_ops): Update.
	(linux_request_interrupt): Turn into ...
	(linux_process_target::request_interrupt): ... this.
	* linux-low.h (class linux_process_target): Update.
	* lynx-low.cc (lynx_target_ops): Update.
	(lynx_request_interrupt): Turn into ...
	(lynx_process_target::request_interrupt): ... this.
	* lynx-low.h (class lynx_process_target): Update.
	* nto-low.cc (nto_target_ops): Update.
	(nto_request_interrupt): Turn into ...
	(nto_process_target::request_interrupt): ... this.
	* nto-low.h (class nto_process_target): Update.
	* win32-low.cc (win32_target_ops): Update.
	(win32_request_interrupt): Turn into ...
	(win32_process_target::request_interrupt): ... this.
	* win32-low.h (class win32_process_target): Update.
---
 gdbserver/linux-low.cc    | 7 +++----
 gdbserver/linux-low.h     | 2 ++
 gdbserver/lynx-low.cc     | 5 ++---
 gdbserver/lynx-low.h      | 2 ++
 gdbserver/nto-low.cc      | 5 ++---
 gdbserver/nto-low.h       | 2 ++
 gdbserver/remote-utils.cc | 8 ++++----
 gdbserver/server.cc       | 2 +-
 gdbserver/target.h        | 9 ++++-----
 gdbserver/win32-low.cc    | 5 ++---
 gdbserver/win32-low.h     | 2 ++
 11 files changed, 26 insertions(+), 23 deletions(-)

diff --git a/gdbserver/linux-low.cc b/gdbserver/linux-low.cc
index f073a38f092..3d02cb5431c 100644
--- a/gdbserver/linux-low.cc
+++ b/gdbserver/linux-low.cc
@@ -5911,12 +5911,12 @@ linux_process_target::look_up_symbols ()
 #endif
 }
 
-static void
-linux_request_interrupt (void)
+void
+linux_process_target::request_interrupt ()
 {
   /* Send a SIGINT to the process group.  This acts just like the user
      typed a ^C on the controlling terminal.  */
-  kill (-signal_pid, SIGINT);
+  ::kill (-signal_pid, SIGINT);
 }
 
 /* Copy LEN bytes from inferior's auxiliary vector starting at OFFSET
@@ -7369,7 +7369,6 @@ linux_get_hwcap2 (int wordsize)
 static linux_process_target the_linux_target;
 
 static process_stratum_target linux_target_ops = {
-  linux_request_interrupt,
   linux_read_auxv,
   linux_supports_z_point_type,
   linux_insert_point,
diff --git a/gdbserver/linux-low.h b/gdbserver/linux-low.h
index 05269dc18ab..197a0bbe1d4 100644
--- a/gdbserver/linux-low.h
+++ b/gdbserver/linux-low.h
@@ -307,6 +307,8 @@ public:
 		    int len) override;
 
   void look_up_symbols () override;
+
+  void request_interrupt () 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 bedf9182ce2..8b5300f08c2 100644
--- a/gdbserver/lynx-low.cc
+++ b/gdbserver/lynx-low.cc
@@ -714,8 +714,8 @@ lynx_process_target::write_memory (CORE_ADDR memaddr,
 
 /* Implement the kill_request target_ops method.  */
 
-static void
-lynx_request_interrupt (void)
+void
+lynx_process_target::request_interrupt ()
 {
   ptid_t inferior_ptid = ptid_of (get_first_thread ());
 
@@ -729,7 +729,6 @@ static lynx_process_target the_lynx_target;
 /* The LynxOS target_ops vector.  */
 
 static process_stratum_target lynx_target_ops = {
-  lynx_request_interrupt,
   NULL,  /* read_auxv */
   NULL,  /* supports_z_point_type */
   NULL,  /* insert_point */
diff --git a/gdbserver/lynx-low.h b/gdbserver/lynx-low.h
index 9036eb3eff0..795603af0d7 100644
--- a/gdbserver/lynx-low.h
+++ b/gdbserver/lynx-low.h
@@ -87,6 +87,8 @@ public:
 
   int write_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
 		    int len) override;
+
+  void request_interrupt () override;
 };
 
 /* The inferior's target description.  This is a global because the
diff --git a/gdbserver/nto-low.cc b/gdbserver/nto-low.cc
index c229e41d525..d60f72affd5 100644
--- a/gdbserver/nto-low.cc
+++ b/gdbserver/nto-low.cc
@@ -746,8 +746,8 @@ nto_process_target::write_memory (CORE_ADDR memaddr,
 
 /* Stop inferior.  We always stop all threads.  */
 
-static void
-nto_request_interrupt (void)
+void
+nto_process_target::request_interrupt ()
 {
   TRACE ("%s\n", __func__);
   nto_set_thread (ptid_t (nto_inferior.pid, 1, 0));
@@ -943,7 +943,6 @@ nto_sw_breakpoint_from_kind (int kind, int *size)
 static nto_process_target the_nto_target;
 
 static process_stratum_target nto_target_ops = {
-  nto_request_interrupt,
   nto_read_auxv,
   nto_supports_z_point_type,
   nto_insert_point,
diff --git a/gdbserver/nto-low.h b/gdbserver/nto-low.h
index 0f4bb434483..c6e0c295662 100644
--- a/gdbserver/nto-low.h
+++ b/gdbserver/nto-low.h
@@ -77,6 +77,8 @@ public:
 
   int write_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
 		    int len) override;
+
+  void request_interrupt () override;
 };
 
 /* The inferior's target description.  This is a global because the
diff --git a/gdbserver/remote-utils.cc b/gdbserver/remote-utils.cc
index b8a8c6576f9..b5248ab368e 100644
--- a/gdbserver/remote-utils.cc
+++ b/gdbserver/remote-utils.cc
@@ -710,7 +710,7 @@ putpkt_binary_1 (char *buf, int cnt, int is_notif)
 
       /* Check for an input interrupt while we're here.  */
       if (cc == '\003' && current_thread != NULL)
-	(*the_target->request_interrupt) ();
+	the_target->pt->request_interrupt ();
     }
   while (cc != '+');
 
@@ -779,7 +779,7 @@ input_interrupt (int unused)
 	  return;
 	}
 
-      (*the_target->request_interrupt) ();
+      the_target->pt->request_interrupt ();
     }
 }
 
@@ -986,7 +986,7 @@ getpkt (char *buf)
 	     check for an input interrupt.  */
 	  if (c == '\003')
 	    {
-	      (*the_target->request_interrupt) ();
+	      the_target->pt->request_interrupt ();
 	      continue;
 	    }
 
@@ -1076,7 +1076,7 @@ getpkt (char *buf)
     {
       /* Consume the interrupt character in the buffer.  */
       readchar ();
-      (*the_target->request_interrupt) ();
+      the_target->pt->request_interrupt ();
     }
 
   return bp - buf;
diff --git a/gdbserver/server.cc b/gdbserver/server.cc
index 4785eabaf06..bc497f87b7f 100644
--- a/gdbserver/server.cc
+++ b/gdbserver/server.cc
@@ -3088,7 +3088,7 @@ handle_v_requests (char *own_buf, int packet_len, int *new_packet_len)
     {
       if (strcmp (own_buf, "vCtrlC") == 0)
 	{
-	  (*the_target->request_interrupt) ();
+	  the_target->pt->request_interrupt ();
 	  write_ok (own_buf);
 	  return;
 	}
diff --git a/gdbserver/target.h b/gdbserver/target.h
index 7f37a904f76..234a183427e 100644
--- a/gdbserver/target.h
+++ b/gdbserver/target.h
@@ -70,11 +70,6 @@ class process_target;
    shared code.  */
 struct process_stratum_target
 {
-  /* Send an interrupt request to the inferior process,
-     however is appropriate.  */
-
-  void (*request_interrupt) (void);
-
   /* Read auxiliary vector data from the inferior process.
 
      Read LEN bytes at OFFSET into a buffer at MYADDR.  */
@@ -475,6 +470,10 @@ public:
      query, which corresponds to every time more symbols (might)
      become available.  */
   virtual void look_up_symbols ();
+
+  /* Send an interrupt request to the inferior process,
+     however is appropriate.  */
+  virtual void request_interrupt () = 0;
 };
 
 extern process_stratum_target *the_target;
diff --git a/gdbserver/win32-low.cc b/gdbserver/win32-low.cc
index 4ac1b3a1ca2..098da30017d 100644
--- a/gdbserver/win32-low.cc
+++ b/gdbserver/win32-low.cc
@@ -1695,8 +1695,8 @@ win32_process_target::write_memory (CORE_ADDR memaddr,
 }
 
 /* Send an interrupt request to the inferior process. */
-static void
-win32_request_interrupt (void)
+void
+win32_process_target::request_interrupt ()
 {
   winapi_DebugBreakProcess DebugBreakProcess;
   winapi_GenerateConsoleCtrlEvent GenerateConsoleCtrlEvent;
@@ -1838,7 +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_request_interrupt,
   NULL, /* read_auxv */
   win32_supports_z_point_type,
   win32_insert_point,
diff --git a/gdbserver/win32-low.h b/gdbserver/win32-low.h
index 0ecb2f8ebb5..2cb38a14195 100644
--- a/gdbserver/win32-low.h
+++ b/gdbserver/win32-low.h
@@ -136,6 +136,8 @@ public:
 
   int write_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
 		    int len) override;
+
+  void request_interrupt () override;
 };
 
 /* Retrieve the context for this thread, if not already retrieved.  */
-- 
2.17.1