1 files changed, 143 insertions, 0 deletions
diff --git a/arch/alpha/arguments.hh b/arch/alpha/arguments.hh
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+++ b/arch/alpha/arguments.hh
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+/*
+ * Copyright (c) 2003 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.
+ */
+
+#ifndef __ARGUMENTS_HH__
+#define __ARGUMENTS_HH__
+
+#include <assert.h>
+
+#include "host.hh"
+#include "kernel.hh"
+#include "refcnt.hh"
+
+class ExecContext;
+
+class AlphaArguments
+{
+  protected:
+    ExecContext *xc;
+    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:
+    AlphaArguments(ExecContext *ctx, int n = 0)
+        : xc(ctx), number(n), data(NULL)
+        { assert(number >= 0); data = new Data;}
+    AlphaArguments(const AlphaArguments &args)
+        : xc(args.xc), number(args.number), data(args.data) {}
+    ~AlphaArguments() {}
+
+    ExecContext *getExecContext() const { return xc; }
+
+    const AlphaArguments &operator=(const AlphaArguments &args) {
+        xc = args.xc;
+        number = args.number;
+        data = args.data;
+        return *this;
+    }
+
+    AlphaArguments &operator++() {
+        ++number;
+        assert(number >= 0);
+        return *this;
+    }
+
+    AlphaArguments operator++(int) {
+        AlphaArguments args = *this;
+        ++number;
+        assert(number >= 0);
+        return args;
+    }
+
+    AlphaArguments &operator--() {
+        --number;
+        assert(number >= 0);
+        return *this;
+    }
+
+    AlphaArguments operator--(int) {
+        AlphaArguments args = *this;
+        --number;
+        assert(number >= 0);
+        return args;
+    }
+
+    const AlphaArguments &operator+=(int index) {
+        number += index;
+        assert(number >= 0);
+        return *this;
+    }
+
+    const AlphaArguments &operator-=(int index) {
+        number -= index;
+        assert(number >= 0);
+        return *this;
+    }
+
+    AlphaArguments operator[](int index) {
+        return AlphaArguments(xc, 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));
+        Kernel::CopyData(xc, buf, getArg(), sizeof(T));
+        return buf;
+    }
+
+    operator char *() {
+        char *buf = data->alloc(2048);
+        Kernel::CopyString(xc, buf, getArg(), 2048);
+        return buf;
+    }
+};
+
+#endif // __ARGUMENTS_HH__