gem5/mem/translating_port.hh
Ali Saidi 5936c79ba0 Add a functional port that is used to load the original binaries in FS
SE mode now has a port that goes to whatever toplevel mem object the
CPU sees that does the appropriate translation for syscall emulation

SConscript:
    translating port is a syscall emu only source
arch/alpha/system.cc:
base/loader/object_file.cc:
base/loader/object_file.hh:
    Use the new functional port to write the binaries into memory
cpu/cpu_exec_context.cc:
cpu/cpu_exec_context.hh:
cpu/simple/cpu.cc:
    We aren't always going to be writing straight to memory with syscalls
    support writing to a cache
mem/port.hh:
    Add a simple unidirectional functional port that panics on any incoming requests
mem/translating_port.hh:
    make translating port inherit from the simple port
sim/system.cc:
sim/system.hh:
    Add a functional port that is used to load the original binaries

--HG--
extra : convert_revision : 9096866d0b23e3aceea68394abb76e63c0f8fd8d
2006-03-30 18:06:00 -05:00

64 lines
2.6 KiB
C++

/*
* Copyright (c) 2001-2005 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.
*/
#ifndef __MEM_TRANSLATING_PROT_HH__
#define __MEM_TRANSLATING_PROT_HH__
#include "mem/port.hh"
class PageTable;
class TranslatingPort : public FunctionalPort
{
private:
PageTable *pTable;
bool allocating;
TranslatingPort(const TranslatingPort &specmem);
const TranslatingPort &operator=(const TranslatingPort &specmem);
public:
TranslatingPort(PageTable *p_table, bool alloc = false);
virtual ~TranslatingPort();
public:
bool tryReadBlob(Addr addr, uint8_t *p, int size);
bool tryWriteBlob(Addr addr, uint8_t *p, int size);
bool tryMemsetBlob(Addr addr, uint8_t val, int size);
bool tryWriteString(Addr addr, const char *str);
bool tryReadString(std::string &str, Addr addr);
virtual void readBlob(Addr addr, uint8_t *p, int size);
virtual void writeBlob(Addr addr, uint8_t *p, int size);
virtual void memsetBlob(Addr addr, uint8_t val, int size);
void writeString(Addr addr, const char *str);
void readString(std::string &str, Addr addr);
};
#endif