Subversion Repositories openrisc_2011-10-31

/* MemoryLoad.h -- Header file for parse.c

   Copyright (C) 1999 Damjan Lampret, lampret@opencores.org

   Copyright (C) 2008 Embecosm Limited

   Copyright (C) 2009 Julius Baxter, julius@orsoc.se

   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>

   This file is part of Or1ksim, the OpenRISC 1000 Architectural Simulator.

   This program is free software; you can redistribute it and/or modify it

   under the terms of the GNU General Public License as published by the Free

   Software Foundation; either version 3 of the License, or (at your option)

   any later version.

   This program is distributed in the hope that it will be useful, but WITHOUT

   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

   more details.

   You should have received a copy of the GNU General Public License along

   with this program.  If not, see <http://www.gnu.org/licenses/>.  */

/* Here we define some often used caharcters in assembly files.  This wil

   probably go into architecture dependent directory. */

#ifndef MEMORYLOAD__H

#define MEMORYLOAD__H

/* Package includes */

//#include "sim-config.h"

#include <stdint.h>

#include "coff.h"

#include "elf.h"

#include "OrpsocAccess.h"

//#define PRINTF(x...) fprintf(stdout,x)

#define PRINTF(x...)

/* Basic types for openrisc */

typedef uint32_t oraddr_t;      /*!< Address as addressed by openrisc */

typedef uint32_t uorreg_t;      /*!< An unsigned register of openrisc */

typedef int32_t orreg_t;        /*!< A signed register of openrisc */

/* From abstract.h */

#define DEFAULT_MEMORY_START         0

//#define DEFAULT_MEMORY_LEN    0x800000

#define STACK_SIZE                  20

#define LABELNAME_LEN               50

#define INSNAME_LEN                 15

#define OPERANDNAME_LEN             50

#define MAX_OPERANDS                 5

#define OP_MEM_ACCESS       0x80000000

/* Cache tag types.  */

#define CT_NONE                      0

#define CT_VIRTUAL                   1

#define CT_PHYSICAL                  2

/* History of execution */

#define HISTEXEC_LEN               200

/* Added by MM */

#ifndef LONGEST

#define LONGEST long long

#endif /* LONGEST */

#ifndef ULONGEST

#define ULONGEST unsigned long long

#endif /* ULONGEST */

#define PRIx32 "x"

#define PRIx16 "hx"

#define PRIx8 "hhx"

#define PRId32 "d"

/* Strings for printing OpenRISC types */

#define PRIxADDR  "08" PRIx32   /*!< print an openrisc address in hex */

#define PRIxREG   "08" PRIx32   /*!< print an openrisc register in hex */

#define PRIdREG   PRId32        /*!< print an openrisc register in decimals */

/* Endianness convenience macros */

#define LE16(x) bswap_16(x)

/*! Instruction queue */

struct iqueue_entry {

        int insn_index;

        uint32_t insn;

        oraddr_t insn_addr;

};

/*! Structure for holding one label per particular memory location */

struct label_entry {

        char *name;

        oraddr_t addr;

        struct label_entry *next;

};

/* from arch sim cpu/or1k/opcode/or32.h */

#define MAX_GPRS 32

#define PAGE_SIZE 8192

class MemoryLoad {

public:

        // Constructor

        MemoryLoad(OrpsocAccess * _accessor);

        // Label access function

        struct label_entry *get_label(oraddr_t addr);

        uint32_t loadcode(char *filename,

                          oraddr_t startaddr, oraddr_t virtphy_transl);

private:

        //! The accessor for the Orpsoc instance

         OrpsocAccess * accessor;

#define MEMORY_LEN  0x100000000ULL

        /*!Whether to do immediate statistics. This seems to be for local debugging

           of parse.c */

#define IMM_STATS 0

        /*!Unused mem memory marker. It is used when allocating program and data

           memory during parsing */

        unsigned int freemem;

        /*!Translation table provided by microkernel. Only used if simulating

           microkernel. */

        oraddr_t transl_table;

        /*!Used to signal whether during loading of programs a translation fault

           occured. */

        uint32_t transl_error;

#if IMM_STATS

        int bcnt[33][3] = { 0 };

        int bsum[3] = { 0 };

        uint32_t movhi = 0;

#endif /* IMM_STATS */

        // A large number, for the Linux kernel (~8000 functions)

#define LABELS_HASH_SIZE 10000

        /* Local list of labels (symbols) */

        struct label_entry *label_hash[LABELS_HASH_SIZE];

        /* Function prototypes for external use */

        char *strstrip(char *dst, const char *src, int n);

        oraddr_t translate(oraddr_t laddr, int *breakpoint);

        int bits(uint32_t val);

        void check_insn(uint32_t insn);

        void addprogram(oraddr_t address, uint32_t insn);

        void readfile_coff(char *filename, short sections);

        void readsyms_coff(char *filename, uint32_t symptr, uint32_t syms);

        void readfile_elf(char *filename);

        void identifyfile(char *filename);

        void init_labels();

        void add_label(oraddr_t addr, char *name);

        struct label_entry *find_label(char *name);

        oraddr_t eval_label(char *name);

};

#endif /* MEMORYLOAD__H */