f5cd4d758c
(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.
192 lines
4.8 KiB
C
192 lines
4.8 KiB
C
/* Model support.
|
|
Copyright (C) 1996, 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. */
|
|
|
|
#include "sim-main.h"
|
|
#include "libiberty.h"
|
|
#include "sim-options.h"
|
|
#include "sim-io.h"
|
|
#include "sim-assert.h"
|
|
#include "bfd.h"
|
|
|
|
static void model_set (SIM_DESC, sim_cpu *, const MODEL *);
|
|
|
|
static DECLARE_OPTION_HANDLER (model_option_handler);
|
|
|
|
static MODULE_INIT_FN sim_model_init;
|
|
|
|
#define OPTION_MODEL (OPTION_START + 0)
|
|
|
|
static const OPTION model_options[] = {
|
|
{ {"model", required_argument, NULL, OPTION_MODEL},
|
|
'\0', "MODEL", "Specify model to simulate",
|
|
model_option_handler },
|
|
{ {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL }
|
|
};
|
|
|
|
static SIM_RC
|
|
model_option_handler (SIM_DESC sd, sim_cpu *cpu, int opt,
|
|
char *arg, int is_command)
|
|
{
|
|
switch (opt)
|
|
{
|
|
case OPTION_MODEL :
|
|
{
|
|
const MODEL *model = sim_model_lookup (arg);
|
|
if (! model)
|
|
{
|
|
sim_io_eprintf (sd, "unknown model `%s'", arg);
|
|
return SIM_RC_FAIL;
|
|
}
|
|
sim_model_set (sd, cpu, model);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return SIM_RC_OK;
|
|
}
|
|
|
|
SIM_RC
|
|
sim_model_install (SIM_DESC sd)
|
|
{
|
|
SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
|
|
|
|
sim_add_option_table (sd, NULL, model_options);
|
|
sim_module_add_init_fn (sd, sim_model_init);
|
|
|
|
return SIM_RC_OK;
|
|
}
|
|
|
|
/* Subroutine of sim_model_set to set the model for one cpu. */
|
|
|
|
static void
|
|
model_set (SIM_DESC sd, sim_cpu *cpu, const MODEL *model)
|
|
{
|
|
CPU_MACH (cpu) = MODEL_MACH (model);
|
|
CPU_MODEL (cpu) = model;
|
|
(* MACH_INIT_CPU (MODEL_MACH (model))) (cpu);
|
|
(* MODEL_INIT (model)) (cpu);
|
|
}
|
|
|
|
/* Set the current model of CPU to MODEL.
|
|
If CPU is NULL, all cpus are set to MODEL. */
|
|
|
|
void
|
|
sim_model_set (SIM_DESC sd, sim_cpu *cpu, const MODEL *model)
|
|
{
|
|
if (! cpu)
|
|
{
|
|
int c;
|
|
|
|
for (c = 0; c < MAX_NR_PROCESSORS; ++c)
|
|
if (STATE_CPU (sd, c))
|
|
model_set (sd, STATE_CPU (sd, c), model);
|
|
}
|
|
else
|
|
{
|
|
model_set (sd, cpu, model);
|
|
}
|
|
}
|
|
|
|
/* Look up model named NAME.
|
|
Result is pointer to MODEL entry or NULL if not found. */
|
|
|
|
const MODEL *
|
|
sim_model_lookup (const char *name)
|
|
{
|
|
const MACH **machp;
|
|
const MODEL *model;
|
|
|
|
for (machp = & sim_machs[0]; *machp != NULL; ++machp)
|
|
{
|
|
for (model = MACH_MODELS (*machp); MODEL_NAME (model) != NULL; ++model)
|
|
{
|
|
if (strcmp (MODEL_NAME (model), name) == 0)
|
|
return model;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/* Look up machine named NAME.
|
|
Result is pointer to MACH entry or NULL if not found. */
|
|
|
|
const MACH *
|
|
sim_mach_lookup (const char *name)
|
|
{
|
|
const MACH **machp;
|
|
|
|
for (machp = & sim_machs[0]; *machp != NULL; ++machp)
|
|
{
|
|
if (strcmp (MACH_NAME (*machp), name) == 0)
|
|
return *machp;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/* Initialize model support. */
|
|
|
|
static SIM_RC
|
|
sim_model_init (SIM_DESC sd)
|
|
{
|
|
SIM_CPU *cpu;
|
|
|
|
/* If both cpu model and state architecture are set, ensure they're
|
|
compatible. If only one is set, set the other. If neither are set,
|
|
use the default model. STATE_ARCHITECTURE is the bfd_arch_info data
|
|
for the selected "mach" (bfd terminology). */
|
|
|
|
/* Only check cpu 0. STATE_ARCHITECTURE is for that one only. */
|
|
/* ??? At present this only supports homogeneous multiprocessors. */
|
|
cpu = STATE_CPU (sd, 0);
|
|
|
|
if (! STATE_ARCHITECTURE (sd)
|
|
&& ! CPU_MACH (cpu))
|
|
{
|
|
/* Set the default model. */
|
|
const MODEL *model = sim_model_lookup (WITH_DEFAULT_MODEL);
|
|
sim_model_set (sd, NULL, model);
|
|
}
|
|
|
|
if (STATE_ARCHITECTURE (sd)
|
|
&& CPU_MACH (cpu))
|
|
{
|
|
if (strcmp (STATE_ARCHITECTURE (sd)->printable_name,
|
|
MACH_BFD_NAME (CPU_MACH (cpu))) != 0)
|
|
{
|
|
sim_io_eprintf (sd, "invalid model `%s' for `%s'\n",
|
|
MODEL_NAME (CPU_MODEL (cpu)),
|
|
STATE_ARCHITECTURE (sd)->printable_name);
|
|
return SIM_RC_FAIL;
|
|
}
|
|
}
|
|
else if (STATE_ARCHITECTURE (sd))
|
|
{
|
|
/* Use the default model for the selected machine.
|
|
The default model is the first one in the list. */
|
|
const MACH *mach = sim_mach_lookup (STATE_ARCHITECTURE (sd)->printable_name);
|
|
sim_model_set (sd, NULL, MACH_MODELS (mach));
|
|
}
|
|
else
|
|
{
|
|
STATE_ARCHITECTURE (sd) = bfd_scan_arch (MACH_BFD_NAME (CPU_MACH (cpu)));
|
|
}
|
|
|
|
return SIM_RC_OK;
|
|
}
|