3a1428365a
readBytes and writeBytes had the word "bytes" in their names because they accessed blobs of bytes. This distinguished them from the read and write functions which handled higher level data types. Because those functions don't exist any more, this change renames readBytes and writeBytes to more general names, readMem and writeMem, which reflect the fact that they are how you read and write memory. This also makes their names more consistent with the register reading/writing functions, although those are still read and set for some reason.
101 lines
3.3 KiB
C++
101 lines
3.3 KiB
C++
/*
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* Copyright (c) 2011 Google
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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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* Authors: Gabe Black
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*/
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#ifndef __ARCH_GENERIC_MEMHELPERS_HH__
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#define __ARCH_GENERIC_MEMHELPERS_HH__
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#include "base/types.hh"
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#include "sim/byteswap.hh"
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#include "sim/fault_fwd.hh"
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#include "sim/insttracer.hh"
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/// Read from memory in timing mode.
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template <class XC, class MemT>
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Fault
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readMemTiming(XC *xc, Trace::InstRecord *traceData, Addr addr,
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MemT &mem, unsigned flags)
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{
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return xc->readMem(addr, (uint8_t *)&mem, sizeof(MemT), flags);
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}
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/// Extract the data returned from a timing mode read.
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template <class MemT>
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void
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getMem(PacketPtr pkt, MemT &mem, Trace::InstRecord *traceData)
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{
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mem = pkt->get<MemT>();
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if (traceData)
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traceData->setData(mem);
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}
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/// Read from memory in atomic mode.
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template <class XC, class MemT>
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Fault
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readMemAtomic(XC *xc, Trace::InstRecord *traceData, Addr addr, MemT &mem,
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unsigned flags)
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{
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memset(&mem, 0, sizeof(mem));
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Fault fault = readMemTiming(xc, traceData, addr, mem, flags);
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if (fault == NoFault) {
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mem = gtoh(mem);
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if (traceData)
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traceData->setData(mem);
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}
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return fault;
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}
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/// Write to memory in timing mode.
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template <class XC, class MemT>
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Fault
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writeMemTiming(XC *xc, Trace::InstRecord *traceData, MemT mem, Addr addr,
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unsigned flags, uint64_t *res)
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{
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if (traceData) {
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traceData->setData(mem);
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}
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mem = TheISA::htog(mem);
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return xc->writeMem((uint8_t *)&mem, sizeof(MemT), addr, flags, res);
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}
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/// Write to memory in atomic mode.
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template <class XC, class MemT>
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Fault
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writeMemAtomic(XC *xc, Trace::InstRecord *traceData, const MemT &mem,
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Addr addr, unsigned flags, uint64_t *res)
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{
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Fault fault = writeMemTiming(xc, traceData, mem, addr, flags, res);
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if (fault == NoFault && res != NULL) {
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*res = gtoh((MemT)*res);
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}
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return fault;
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}
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#endif
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