mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 03:51:15 +08:00
213516ef31
This commit is the result of running the gdb/copyright.py script, which automated the update of the copyright year range for all source files managed by the GDB project to be updated to include year 2023.
140 lines
4.4 KiB
C
140 lines
4.4 KiB
C
/* Architecture, machine, and model support.
|
|
Copyright (C) 1997-2023 Free Software Foundation, Inc.
|
|
Contributed by Cygnus Support.
|
|
|
|
This file is part of GDB, the GNU debugger.
|
|
|
|
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/>. */
|
|
|
|
/* Nomenclature:
|
|
architecture = one of sparc, mips, sh, etc.
|
|
in the sparc architecture, mach = one of v6, v7, v8, sparclite, etc.
|
|
in the v8 mach, model = one of supersparc, etc.
|
|
|
|
To use the model framework, your arch needs to do a few things:
|
|
(1) Call SIM_AC_OPTION_DEFAULT_MODEL() in configure.ac.
|
|
(2) Define enum mach_attr in sim-main.h.
|
|
(3) Define sim_machs array (and all the callbacks it uses).
|
|
*/
|
|
|
|
/* This file is intended to be included by sim-basics.h. */
|
|
|
|
#ifndef SIM_MODEL_H
|
|
#define SIM_MODEL_H
|
|
|
|
/* Function unit and instruction timing support.
|
|
??? This is obviously insufficiently general.
|
|
It's useful but it needs elaborating upon. */
|
|
|
|
typedef struct {
|
|
unsigned char name; /* actually a UNIT_TYPE enum */
|
|
unsigned char issue;
|
|
unsigned char done;
|
|
} UNIT;
|
|
|
|
#ifndef MAX_UNITS
|
|
#define MAX_UNITS 1
|
|
#endif
|
|
|
|
typedef int (MODEL_FN) (sim_cpu *, void *);
|
|
|
|
typedef struct {
|
|
/* This is an integer that identifies this insn.
|
|
How this works is up to the target. */
|
|
int num;
|
|
|
|
/* Function to handle insn-specific profiling. */
|
|
MODEL_FN *model_fn;
|
|
|
|
/* Array of function units used by this insn. */
|
|
UNIT units[MAX_UNITS];
|
|
} INSN_TIMING;
|
|
|
|
/* Struct to describe various implementation properties of a cpu.
|
|
When multiple cpu variants are supported, the sizes of some structs
|
|
can vary. */
|
|
|
|
typedef struct {
|
|
/* The size of the SIM_CPU struct. */
|
|
int sim_cpu_size;
|
|
#define IMP_PROPS_SIM_CPU_SIZE(cpu_props) ((cpu_props)->sim_cpu_size)
|
|
/* An SCACHE element can vary in size, depending on the selected cpu.
|
|
This is zero if the SCACHE isn't in use for this variant. */
|
|
int scache_elm_size;
|
|
#define IMP_PROPS_SCACHE_ELM_SIZE(cpu_props) ((cpu_props)->scache_elm_size)
|
|
} SIM_MACH_IMP_PROPERTIES;
|
|
|
|
/* A machine variant. */
|
|
|
|
typedef struct {
|
|
const char *name;
|
|
#define MACH_NAME(m) ((m)->name)
|
|
/* This is the argument to bfd_scan_arch. */
|
|
const char *bfd_name;
|
|
#define MACH_BFD_NAME(m) ((m)->bfd_name)
|
|
int num;
|
|
#define MACH_NUM(m) ((m)->num)
|
|
|
|
int word_bitsize;
|
|
#define MACH_WORD_BITSIZE(m) ((m)->word_bitsize)
|
|
int addr_bitsize;
|
|
#define MACH_ADDR_BITSIZE(m) ((m)->addr_bitsize)
|
|
|
|
/* Pointer to null-entry terminated table of models of this mach.
|
|
The default is the first one. */
|
|
const struct model *models;
|
|
#define MACH_MODELS(m) ((m)->models)
|
|
|
|
/* Pointer to the implementation properties of this mach. */
|
|
const SIM_MACH_IMP_PROPERTIES *imp_props;
|
|
#define MACH_IMP_PROPS(m) ((m)->imp_props)
|
|
|
|
/* Called by sim_model_set when the model of a cpu is set. */
|
|
void (* init_cpu) (sim_cpu *);
|
|
#define MACH_INIT_CPU(m) ((m)->init_cpu)
|
|
|
|
/* Initialize the simulator engine for this cpu.
|
|
Used by cgen simulators to initialize the insn descriptor table. */
|
|
void (* prepare_run) (sim_cpu *);
|
|
#define MACH_PREPARE_RUN(m) ((m)->prepare_run)
|
|
} SIM_MACH;
|
|
|
|
/* A model (implementation) of a machine. */
|
|
|
|
typedef struct model {
|
|
const char *name;
|
|
#define MODEL_NAME(m) ((m)->name)
|
|
const SIM_MACH *mach;
|
|
#define MODEL_MACH(m) ((m)->mach)
|
|
/* An enum that distinguished the model. */
|
|
int num;
|
|
#define MODEL_NUM(m) ((m)->num)
|
|
/* Pointer to timing table for this model. */
|
|
const INSN_TIMING *timing;
|
|
#define MODEL_TIMING(m) ((m)->timing)
|
|
void (* init) (sim_cpu *);
|
|
#define MODEL_INIT(m) ((m)->init)
|
|
} SIM_MODEL;
|
|
|
|
/* Model module handlers. */
|
|
extern MODULE_INSTALL_FN sim_model_install;
|
|
|
|
/* Support routines. */
|
|
extern void sim_model_set (SIM_DESC sd_, sim_cpu *cpu_, const SIM_MODEL *model_);
|
|
extern const SIM_MODEL *sim_model_lookup (SIM_DESC, const char *name_);
|
|
extern const SIM_MACH *sim_mach_lookup (SIM_DESC, const char *name_);
|
|
extern const SIM_MACH *sim_mach_lookup_bfd_name (SIM_DESC, const char *bfd_name_);
|
|
|
|
#endif /* SIM_MODEL_H */
|