/* * eio.hh - external interfaces to external I/O files * * This file is a part of the SimpleScalar tool suite written by * Todd M. Austin as a part of the Multiscalar Research Project. * * The tool suite is currently maintained by Doug Burger and Todd M. Austin. * * Copyright (C) 1997, 1998 by Todd M. Austin * * This source file is distributed "as is" in the hope that it will be * useful.  The tool set comes with no warranty, and no author or * distributor accepts any responsibility for the consequences of its * use. * * Everyone is granted permission to copy, modify and redistribute * this tool set under the following conditions: * *    This source code is distributed for non-commercial use only. *    Please contact the maintainer for restrictions applying to *    commercial use. * *    Permission is granted to anyone to make or distribute copies *    of this source code, either as received or modified, in any *    medium, provided that all copyright notices, permission and *    nonwarranty notices are preserved, and that the distributor *    grants the recipient permission for further redistribution as *    permitted by this document. * *    Permission is granted to distribute this file in compiled *    or executable form under the same conditions that apply for *    source code, provided that either: * *    A. it is accompanied by the corresponding machine-readable *       source code, *    B. it is accompanied by a written offer, with no time limit, *       to give anyone a machine-readable copy of the corresponding *       source code in return for reimbursement of the cost of *       distribution.  This written offer must permit verbatim *       duplication by anyone, or *    C. it is distributed by someone who received only the *       executable form, and is accompanied by a copy of the *       written offer of source code that they received concurrently. * * In other words, you are welcome to use, share and improve this * source file.  You are forbidden to forbid anyone else to use, share * and improve what you give them. * * INTERNET: dburger@cs.wisc.edu * US Mail:  1210 W. Dayton Street, Madison, WI 53706 * */#ifndef __EIO_HH__#define __EIO_HH__#include <cstdio>#include "cpu/smt.hh"#include "encumbered/eio/alpha_exo.h"#include "sim/process.hh"/* EIO file formats */#define EIO_PISA_FORMAT			1#define EIO_ALPHA_FORMAT		2/* EIO file version */#define EIO_FILE_VERSION		3class EioProcess : public Process{  private:    FILE *eio_fd;    Counter chkpt_num_inst;    // read process checkpoint from specified file    exo_integer_t    read_chkpt(RegFile *regs, FILE *fd);    // read syscall from EIO trace in eio_fd    void read_trace(RegFile *regs,		// registers to update		    FunctionalMemory *curmem,	// memory space		    Counter icnt);		// instruction count  public:    EioProcess(const std::string &name, int stdout_fd, int stderr_fd,	       const std::string &eio_file, const std::string &chkpt_file);    // override syscall handler to read from EIO trace    virtual void syscall(ExecContext *xc);};/* returns non-zero if file FNAME has a valid EIO header */int eio_valid(char *fname);#endif // __EIO_HH__