Adding gem5 source to svn.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a

simulators/gem5/src/arch/sparc/process.hh

@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 2003-2004 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: Gabe Black
+ *          Ali Saidi
+ */
+
+#ifndef __SPARC_PROCESS_HH__
+#define __SPARC_PROCESS_HH__
+
+#include <string>
+#include <vector>
+
+#include "sim/byteswap.hh"
+#include "sim/process.hh"
+
+class ObjectFile;
+class System;
+
+class SparcLiveProcess : public LiveProcess
+{
+  protected:
+
+    const Addr StackBias;
+
+    // The locations of the fill and spill handlers
+    Addr fillStart, spillStart;
+
+    SparcLiveProcess(LiveProcessParams * params,
+            ObjectFile *objFile, Addr _StackBias);
+
+    void initState();
+
+    template<class IntType>
+    void argsInit(int pageSize);
+
+  public:
+
+    // Handles traps which request services from the operating system
+    virtual void handleTrap(int trapNum, ThreadContext *tc);
+
+    Addr readFillStart() { return fillStart; }
+    Addr readSpillStart() { return spillStart; }
+
+    virtual void flushWindows(ThreadContext *tc) = 0;
+    void setSyscallReturn(ThreadContext *tc, SyscallReturn return_value);
+};
+
+class Sparc32LiveProcess : public SparcLiveProcess
+{
+  protected:
+
+    Sparc32LiveProcess(LiveProcessParams * params, ObjectFile *objFile) :
+            SparcLiveProcess(params, objFile, 0)
+    {
+        // Set up stack. On SPARC Linux, stack goes from the top of memory
+        // downward, less the hole for the kernel address space.
+        stack_base = (Addr)0xf0000000ULL;
+
+        // Set up region for mmaps.
+        mmap_start = mmap_end = 0x70000000;
+    }
+
+    void initState();
+
+  public:
+
+    void argsInit(int intSize, int pageSize);
+
+    void flushWindows(ThreadContext *tc);
+
+    SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
+    void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val);
+};
+
+class Sparc64LiveProcess : public SparcLiveProcess
+{
+  protected:
+
+    Sparc64LiveProcess(LiveProcessParams * params, ObjectFile *objFile) :
+            SparcLiveProcess(params, objFile, 2047)
+    {
+        // Set up stack. On SPARC Linux, stack goes from the top of memory
+        // downward, less the hole for the kernel address space.
+        stack_base = (Addr)0x80000000000ULL;
+
+        // Set up region for mmaps.  Tru64 seems to start just above 0 and
+        // grow up from there.
+        mmap_start = mmap_end = 0xfffff80000000000ULL;
+    }
+
+    void initState();
+
+  public:
+
+    void argsInit(int intSize, int pageSize);
+
+    void flushWindows(ThreadContext *tc);
+
+    SparcISA::IntReg getSyscallArg(ThreadContext *tc, int &i);
+    void setSyscallArg(ThreadContext *tc, int i, SparcISA::IntReg val);
+};
+
+#endif // __SPARC_PROCESS_HH__