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author | Doug Evans <dje@google.com> | 1999-01-06 00:42:34 +0000 |
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committer | Doug Evans <dje@google.com> | 1999-01-06 00:42:34 +0000 |
commit | f5cd4d758c52b6746046da1fafd0e70b41022178 (patch) | |
tree | 3eb8c2ebe80f7fb26095862240191e4ae138adc6 /sim/common/sim-model.h | |
parent | 5730d39d2cd1974c77899555dac466babc316589 (diff) | |
download | gdb-f5cd4d758c52b6746046da1fafd0e70b41022178.zip gdb-f5cd4d758c52b6746046da1fafd0e70b41022178.tar.gz gdb-f5cd4d758c52b6746046da1fafd0e70b41022178.tar.bz2 |
* Make-common.in (CGEN_INCLUDE_DEPS): Add cgen-defs.h, cgen-engine.h.
(CGEN_MAIN_SCM): Add rtx-funcs.scm.
(cgen-arch): Pass $(mach) to cgen.sh.
* cgen-engine.h (SEM_BRANCH_FINI): New arg pcvar, all uses updated.
(SEM_BRANCH_INIT_EXTRACT): New macro.
(SEM_BRANCH_INIT): Add taken_p.
(TARGET_SEM_BRANCH_FINI): Provide default definition.
(SEM_BRANCH_FINI): Use it.
(SEM_INSN): Update.
* cgen-run.c (sim_resume): Handle tracing of last insn.
* cgen-scache.h (WITH_SCACHE): Define as 0 if not defined.
* cgen-trace.c (current_abuf): New static global.
(trace_insn_init): Initialize it.
(trace_insn_fini): Use it.
(trace_insn): Set it.
* cgen.sh (arch case): Pass -m ${mach} to cgen.
* genmloop.sh (@cpu@_emit_before): Only define if WITH_SCACHE_PBB.
(@cpu@_emit_after): Ditto.
(simple @cpu@_engine_run_full): New local `pc'. Initialize semantic
labels if WITH_SEM_SWITCH_FULL.
* sim-model.c: Include bfd.h.
(sim_model_init): New function.
(sim_model_install): Record init fn.
* sim-model.h (MACH): New member bfd_name.
* sim-module.c (modules): Initialize model before scache.
Diffstat (limited to 'sim/common/sim-model.h')
-rw-r--r-- | sim/common/sim-model.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/sim/common/sim-model.h b/sim/common/sim-model.h new file mode 100644 index 0000000..287e4bb --- /dev/null +++ b/sim/common/sim-model.h @@ -0,0 +1,132 @@ +/* Architecture, machine, and model support. + Copyright (C) 1997, 1998 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 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. */ + +/* 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. +*/ + +/* 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) +} 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 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 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) +} MACH; + +/* A model (implementation) of a machine. */ + +typedef struct model { + const char *name; +#define MODEL_NAME(m) ((m)->name) + const 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) +} MODEL; + +/* Tables of supported machines. */ +/* ??? In a simulator of multiple architectures, will need multiple copies of + this. Have an `archs' array that contains a pointer to the machs array + for each (which in turn has a pointer to the models array for each). */ +extern const MACH *sim_machs[]; + +/* Model module handlers. */ +extern MODULE_INSTALL_FN sim_model_install; + +/* Support routines. */ +extern void sim_model_set (SIM_DESC sd, sim_cpu *cpu, const MODEL *model); +extern const MODEL * sim_model_lookup (const char *name); +extern const MACH * sim_mach_lookup (const char *name); + +#endif /* SIM_MODEL_H */ |