2000-10-11 Fernando Nasser <fnasser@totem.to.cygnus.com>

        From Grant Edwards <grante@visi.com>
        This keeps the GUI alive while running an RDI target and lets the
        STOP button be used to stop the target.
        * remote-rdi.c (arm_rdi_stop): New function.  Implements target_stop.
        (init_rdi_ops): Set to_stop target vector entry to the above.
        * rdi-share/ardi.c (stop_request): New variable.  Tells when a stop
        has been requested.
        (angel_RDI_stop_request): New function. Registers that a stop has
        been requested.
        (angel_RDI_ExecuteOrStep): Add call to ui_loop_hook() in loop that
        waits while target is executing.  Initialize and reset stop_request.
        * rdi-share/ardi.h: Add declaration of angel_RDI_stop_request().

4 files changed, 41 insertions, 2 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 484cf0e..e0a7ba2 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,18 @@
+2000-10-11  Fernando Nasser  <fnasser@totem.to.cygnus.com>
+
+	From Grant Edwards <grante@visi.com>
+	This keeps the GUI alive while running an RDI target and lets the
+	STOP button be used to stop the target.
+	* remote-rdi.c (arm_rdi_stop): New function.  Implements target_stop.
+	(init_rdi_ops): Set to_stop target vector entry to the above.
+	* rdi-share/ardi.c (stop_request): New variable.  Tells when a stop
+	has been requested.
+	(angel_RDI_stop_request): New function. Registers that a stop has
+	been requested.
+	(angel_RDI_ExecuteOrStep): Add call to ui_loop_hook() in loop that
+	waits while target is executing.  Initialize and reset stop_request.
+	* rdi-share/ardi.h: Add declaration of angel_RDI_stop_request().
+
 2000-10-12  Kevin Buettner  <kevinb@redhat.com>
 
 	* remote-rdp.c (remote_rdp_xfer_inferior_memory): Protoize.
diff --git a/gdb/rdi-share/ardi.c b/gdb/rdi-share/ardi.c
index 43b8cf4..334a1fc 100644
--- a/gdb/rdi-share/ardi.c
+++ b/gdb/rdi-share/ardi.c
@@ -396,6 +396,7 @@ static void (*old_handler)();
 
 static bool boot_interrupted = FALSE;
 static volatile bool interrupt_request = FALSE;
+static volatile bool stop_request = FALSE;
 
 static void ardi_sigint_handler(int sig) {
 #ifdef DEBUG
@@ -1343,10 +1344,16 @@ static void interrupt_target( void )
                                     Packet *packet );
 #endif
 
+void angel_RDI_stop_request(void)
+{
+  stop_request = 1;
+}
+
 /* Core functionality for execute and step */
 static int angel_RDI_ExecuteOrStep(PointHandle *handle, word type, 
                                    unsigned ninstr)
 {
+  extern int (*ui_loop_hook) (int);
   int err;
   adp_stopped_struct stopped_info;
   void* stateptr = (void *)&stopped_info;
@@ -1401,15 +1408,22 @@ static int angel_RDI_ExecuteOrStep(PointHandle *handle, word type,
   angel_DebugPrint("Waiting for program to finish...\n");
 #endif
 
+  interrupt_request = FALSE;
+  stop_request = FALSE;
+  
   signal(SIGINT, ardi_sigint_handler);
   while( executing )
   {
-      if (interrupt_request)
+    if (ui_loop_hook)
+      ui_loop_hook(0);
+    
+    if (interrupt_request || stop_request)
       {
         interrupt_target();
         interrupt_request = FALSE;
+        stop_request = FALSE;
       }
-      Adp_AsynchronousProcessing( async_block_on_nothing );
+    Adp_AsynchronousProcessing( async_block_on_nothing );
   }
   signal(SIGINT, SIG_IGN);
 
diff --git a/gdb/rdi-share/ardi.h b/gdb/rdi-share/ardi.h
index 66acd1a..3b23d88 100644
--- a/gdb/rdi-share/ardi.h
+++ b/gdb/rdi-share/ardi.h
@@ -60,6 +60,8 @@ int angel_RDI_pointinq(ARMword *address, unsigned type, unsigned datatype,
 
 int angel_RDI_execute(PointHandle *handle);
 
+void angel_RDI_stop_request(void);
+
 int angel_RDI_step(unsigned ninstr, PointHandle *handle);
 
 int angel_RDI_info(unsigned type, ARMword *arg1, ARMword *arg2);
diff --git a/gdb/remote-rdi.c b/gdb/remote-rdi.c
index 708c45f..2a45cad 100644
--- a/gdb/remote-rdi.c
+++ b/gdb/remote-rdi.c
@@ -929,6 +929,13 @@ rdi_error_signal (int err)
       return TARGET_SIGNAL_UNKNOWN;
     }
 }
+
+static void
+arm_rdi_stop(void)
+{
+  angel_RDI_stop_request();
+}
+
 
 /* Define the target operations structure.  */
 
@@ -944,6 +951,7 @@ Specify the serial device it is connected to (e.g. /dev/ttya).";
   arm_rdi_ops.to_detach = arm_rdi_detach;
   arm_rdi_ops.to_resume = arm_rdi_resume;
   arm_rdi_ops.to_wait = arm_rdi_wait;
+  arm_rdi_ops.to_stop = arm_rdi_stop;
   arm_rdi_ops.to_fetch_registers = arm_rdi_fetch_registers;
   arm_rdi_ops.to_store_registers = arm_rdi_store_registers;
   arm_rdi_ops.to_prepare_to_store = arm_rdi_prepare_to_store;