From 85a6079db7c2e7146dc437c9c032d2aa56dd9048 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Mon, 6 Nov 2006 18:29:58 -0500
Subject: Remote GDB support has been changed to use inheritance. Alpha should
 work, but isn't tested. Other architectures will not.

--HG--
extra : convert_revision : fc7e1e73e2f3b1a4ab9905a1eb98c5f07c6c8707
---
 src/arch/sparc/remote_gdb.hh | 129 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)
 create mode 100644 src/arch/sparc/remote_gdb.hh

(limited to 'src/arch/sparc/remote_gdb.hh')

diff --git a/src/arch/sparc/remote_gdb.hh b/src/arch/sparc/remote_gdb.hh
new file mode 100644
index 000000000..6ac4f296f
--- /dev/null
+++ b/src/arch/sparc/remote_gdb.hh
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2002-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Nathan Binkert
+ */
+
+#ifndef __ARCH_ALPHA_REMOTE_GDB_HH__
+#define __ARCH_ALPHA_REMOTE_GDB_HH__
+
+#include <map>
+
+#include "arch/types.hh"
+#include "base/remote_gdb.hh"
+#include "cpu/pc_event.hh"
+#include "base/pollevent.hh"
+
+class System;
+class ThreadContext;
+class PhysicalMemory;
+
+namespace SparcISA
+{
+    class RemoteGDB : public BaseRemoteGDB
+    {
+      private:
+        friend void debugger();
+        friend class GDBListener;
+
+      protected:
+        class Event : public PollEvent
+        {
+          protected:
+            RemoteGDB *gdb;
+
+          public:
+            Event(RemoteGDB *g, int fd, int e);
+            void process(int revent);
+        };
+
+        friend class Event;
+        Event *event;
+
+      protected:
+        // Machine memory
+        bool write(Addr addr, size_t size, const char *data);
+
+      public:
+        RemoteGDB(System *system, ThreadContext *context);
+        ~RemoteGDB();
+
+        bool acc(Addr addr, size_t len);
+        int signal(int type);
+
+      protected:
+        void getregs();
+        void setregs();
+
+        void clearSingleStep();
+        void setSingleStep();
+
+        PCEventQueue *getPcEventQueue();
+
+      protected:
+        class HardBreakpoint : public PCEvent
+        {
+          private:
+            RemoteGDB *gdb;
+
+          public:
+            int refcount;
+
+          public:
+            HardBreakpoint(RemoteGDB *_gdb, Addr addr);
+            std::string name() { return gdb->name() + ".hwbkpt"; }
+
+            virtual void process(ThreadContext *tc);
+        };
+        friend class HardBreakpoint;
+
+        typedef std::map<Addr, HardBreakpoint *> break_map_t;
+        typedef break_map_t::iterator break_iter_t;
+        break_map_t hardBreakMap;
+
+        bool insertSoftBreak(Addr addr, size_t len);
+        bool removeSoftBreak(Addr addr, size_t len);
+        bool insertHardBreak(Addr addr, size_t len);
+        bool removeHardBreak(Addr addr, size_t len);
+
+      protected:
+        struct TempBreakpoint {
+            Addr	address;		// set here
+            MachInst	bkpt_inst;		// saved instruction at bkpt
+            int		init_count;		// number of times to skip bkpt
+            int		count;			// current count
+        };
+
+        TempBreakpoint notTakenBkpt;
+        TempBreakpoint takenBkpt;
+
+        void clearTempBreakpoint(TempBreakpoint &bkpt);
+        void setTempBreakpoint(TempBreakpoint &bkpt, Addr addr);
+    };
+}
+
+#endif /* __ARCH_ALPHA_REMOTE_GDB_H__ */
-- 
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