sim-main.h

这个是LINUX下的GDB调度工具的源码

/* frv simulator support code
   Copyright (C) 1998, 2000, 2001 Free Software Foundation, Inc.
   Contributed by Red Hat.

This file is part of the GNU simulators.

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 2, 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, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

/* Main header for the frv.  */

#define USING_SIM_BASE_H /* FIXME: quick hack */

struct _sim_cpu; /* FIXME: should be in sim-basics.h */
typedef struct _sim_cpu SIM_CPU;

/* Set the mask of unsupported traces.  */
#define WITH_TRACE \
  (~(TRACE_alu | TRACE_decode | TRACE_memory | TRACE_model | TRACE_fpu \
     | TRACE_branch | TRACE_debug))

/* sim-basics.h includes config.h but cgen-types.h must be included before
   sim-basics.h and cgen-types.h needs config.h.  */
#include "config.h"

#include "symcat.h"
#include "sim-basics.h"
#include "cgen-types.h"
#include "frv-desc.h"
#include "frv-opc.h"
#include "arch.h"

/* These must be defined before sim-base.h.  */
typedef USI sim_cia;

#define CIA_GET(cpu)     CPU_PC_GET (cpu)
#define CIA_SET(cpu,val) CPU_PC_SET ((cpu), (val))

void frv_sim_engine_halt_hook (SIM_DESC, SIM_CPU *, sim_cia);
#define SIM_ENGINE_HALT_HOOK(SD, LAST_CPU, CIA) \
  frv_sim_engine_halt_hook ((SD), (LAST_CPU), (CIA))

#define SIM_ENGINE_RESTART_HOOK(SD, LAST_CPU, CIA) 0

#include "sim-base.h"
#include "cgen-sim.h"
#include "frv-sim.h"
#include "cache.h"
#include "registers.h"
#include "profile.h"

/* The _sim_cpu struct.  */

struct _sim_cpu {
  /* sim/common cpu base.  */
  sim_cpu_base base;

  /* Static parts of cgen.  */
  CGEN_CPU cgen_cpu;

  /* CPU specific parts go here.
     Note that in files that don't need to access these pieces WANT_CPU_FOO
     won't be defined and thus these parts won't appear.  This is ok in the
     sense that things work.  It is a source of bugs though.
     One has to of course be careful to not take the size of this
     struct and no structure members accessed in non-cpu specific files can
     go after here.  Oh for a better language.  */
#if defined (WANT_CPU_FRVBF)
  FRVBF_CPU_DATA cpu_data;

  /* Control information for registers */
  FRV_REGISTER_CONTROL register_control;
#define CPU_REGISTER_CONTROL(cpu) (& (cpu)->register_control)

  FRV_VLIW vliw;
#define CPU_VLIW(cpu) (& (cpu)->vliw)

  FRV_CACHE insn_cache;
#define CPU_INSN_CACHE(cpu) (& (cpu)->insn_cache)

  FRV_CACHE data_cache;
#define CPU_DATA_CACHE(cpu) (& (cpu)->data_cache)

  FRV_PROFILE_STATE profile_state;
#define CPU_PROFILE_STATE(cpu) (& (cpu)->profile_state)

  int debug_state;
#define CPU_DEBUG_STATE(cpu) ((cpu)->debug_state)

  SI load_address;
#define CPU_LOAD_ADDRESS(cpu) ((cpu)->load_address)

  SI load_length;
#define CPU_LOAD_LENGTH(cpu) ((cpu)->load_length)

  SI load_flag;
#define CPU_LOAD_SIGNED(cpu) ((cpu)->load_flag)
#define CPU_LOAD_LOCK(cpu) ((cpu)->load_flag)

  SI store_flag;
#define CPU_RSTR_INVALIDATE(cpu) ((cpu)->store_flag)

  unsigned long elf_flags;
#define CPU_ELF_FLAGS(cpu) ((cpu)->elf_flags)
#endif /* defined (WANT_CPU_FRVBF) */
};

/* The sim_state struct.  */

struct sim_state {
  sim_cpu *cpu;
#define STATE_CPU(sd, n) (/*&*/ (sd)->cpu)

  CGEN_STATE cgen_state;

  sim_state_base base;
};

/* Misc.  */

/* Catch address exceptions.  */
extern SIM_CORE_SIGNAL_FN frv_core_signal;
#define SIM_CORE_SIGNAL(SD,CPU,CIA,MAP,NR_BYTES,ADDR,TRANSFER,ERROR) \
frv_core_signal ((SD), (CPU), (CIA), (MAP), (NR_BYTES), (ADDR), \
		  (TRANSFER), (ERROR))

/* Default memory size.  */
#define FRV_DEFAULT_MEM_SIZE 0x800000 /* 8M */