c5dcd152f2
SConscript:
Changed all of the "targetarch" files to be "arch" files
arch/SConscript:
Added all of the remaining targetarch files to isa_switch_hdrs
--HG--
extra : convert_revision : a37d18349e27cf92dce12814f21944daa7fe9480
116 lines
3.1 KiB
C++
116 lines
3.1 KiB
C++
/*
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* Copyright (c) 2004-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __ARCH_ALPHA_VPTR_HH__
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#define __ARCH_ALPHA_VPTR_HH__
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#include "arch/vtophys.hh"
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#include "arch/isa_traits.hh"
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class ExecContext;
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template <class T>
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class VPtr
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{
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public:
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typedef T Type;
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private:
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ExecContext *xc;
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Addr ptr;
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public:
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ExecContext *GetXC() const { return xc; }
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Addr GetPointer() const { return ptr; }
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public:
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explicit VPtr(ExecContext *_xc, Addr p = 0) : xc(_xc), ptr(p) { }
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template <class U>
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VPtr(const VPtr<U> &vp) : xc(vp.GetXC()), ptr(vp.GetPointer()) {}
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~VPtr() {}
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bool operator!() const
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{
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return ptr == 0;
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}
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VPtr<T> operator+(int offset)
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{
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VPtr<T> ptr(*this);
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ptr += offset;
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return ptr;
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}
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const VPtr<T> &operator+=(int offset)
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{
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ptr += offset;
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assert((ptr & (TheISA::PageBytes - 1)) + sizeof(T)
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< TheISA::PageBytes);
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return *this;
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}
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const VPtr<T> &operator=(Addr p)
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{
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assert((p & (TheISA::PageBytes - 1)) + sizeof(T)
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< TheISA::PageBytes);
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ptr = p;
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return *this;
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}
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template <class U>
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const VPtr<T> &operator=(const VPtr<U> &vp)
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{
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xc = vp.GetXC();
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ptr = vp.GetPointer();
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return *this;
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}
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operator T *()
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{
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void *addr = vtomem(xc, ptr, sizeof(T));
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return (T *)addr;
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}
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T *operator->()
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{
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void *addr = vtomem(xc, ptr, sizeof(T));
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return (T *)addr;
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}
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T &operator*()
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{
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void *addr = vtomem(xc, ptr, sizeof(T));
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return *(T *)addr;
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}
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};
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#endif // __ARCH_ALPHA_VPTR_HH__
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