Arguments class for SPARC. This is basically just a copy of Alpha's

--HG--
extra : convert_revision : 9df68973c63d5ff256d6de485e8d918c454c8ff1

src/arch/sparc/arguments.cc

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+/*
+ * Copyright (c) 2003-2005 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
+ */
+
+#include "arch/sparc/arguments.hh"
+#include "arch/sparc/vtophys.hh"
+#include "cpu/thread_context.hh"
+#include "mem/vport.hh"
+
+using namespace SparcISA;
+
+Arguments::Data::~Data()
+{
+    while (!data.empty()) {
+        delete [] data.front();
+        data.pop_front();
+    }
+}
+
+char *
+Arguments::Data::alloc(size_t size)
+{
+    char *buf = new char[size];
+    data.push_back(buf);
+    return buf;
+}
+
+uint64_t
+Arguments::getArg(bool fp)
+{
+    //XXX This needs to be replaced with the sparc version
+    if (number < 6) {
+        if (fp)
+            return tc->readFloatRegBits(16 + number);
+        else
+            return tc->readIntReg(16 + number);
+    } else {
+        Addr sp = tc->readIntReg(30);
+        VirtualPort *vp = tc->getVirtPort(tc);
+        uint64_t arg = vp->read<uint64_t>(sp + (number-6) * sizeof(uint64_t));
+        tc->delVirtPort(vp);
+        return arg;
+    }
+}
+

src/arch/sparc/arguments.hh

@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 2003-2005 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_SPARC_ARGUMENTS_HH__
+#define __ARCH_SPARC_ARGUMENTS_HH__
+
+#include <assert.h>
+
+#include "arch/sparc/vtophys.hh"
+#include "base/refcnt.hh"
+#include "sim/host.hh"
+
+class ThreadContext;
+
+namespace SparcISA {
+
+class Arguments
+{
+  protected:
+    ThreadContext *tc;
+    int number;
+    uint64_t getArg(bool fp = false);
+
+  protected:
+    class Data : public RefCounted
+    {
+      public:
+        Data(){}
+        ~Data();
+
+      private:
+        std::list<char *> data;
+
+      public:
+        char *alloc(size_t size);
+    };
+
+    RefCountingPtr<Data> data;
+
+  public:
+    Arguments(ThreadContext *ctx, int n = 0)
+        : tc(ctx), number(n), data(NULL)
+        { assert(number >= 0); data = new Data;}
+    Arguments(const Arguments &args)
+        : tc(args.tc), number(args.number), data(args.data) {}
+    ~Arguments() {}
+
+    ThreadContext *getThreadContext() const { return tc; }
+
+    const Arguments &operator=(const Arguments &args) {
+        tc = args.tc;
+        number = args.number;
+        data = args.data;
+        return *this;
+    }
+
+    Arguments &operator++() {
+        ++number;
+        assert(number >= 0);
+        return *this;
+    }
+
+    Arguments operator++(int) {
+        Arguments args = *this;
+        ++number;
+        assert(number >= 0);
+        return args;
+    }
+
+    Arguments &operator--() {
+        --number;
+        assert(number >= 0);
+        return *this;
+    }
+
+    Arguments operator--(int) {
+        Arguments args = *this;
+        --number;
+        assert(number >= 0);
+        return args;
+    }
+
+    const Arguments &operator+=(int index) {
+        number += index;
+        assert(number >= 0);
+        return *this;
+    }
+
+    const Arguments &operator-=(int index) {
+        number -= index;
+        assert(number >= 0);
+        return *this;
+    }
+
+    Arguments operator[](int index) {
+        return Arguments(tc, index);
+    }
+
+    template <class T>
+    operator T() {
+        assert(sizeof(T) <= sizeof(uint64_t));
+        T data = static_cast<T>(getArg());
+        return data;
+    }
+
+    template <class T>
+    operator T *() {
+        T *buf = (T *)data->alloc(sizeof(T));
+        CopyData(tc, buf, getArg(), sizeof(T));
+        return buf;
+    }
+
+    operator char *() {
+        char *buf = data->alloc(2048);
+        CopyStringOut(tc, buf, getArg(), 2048);
+        return buf;
+    }
+};
+
+}; // namespace AlphaISA
+
+#endif // __ARCH_ALPHA_ARGUMENTS_HH__