306 lines
8.2 KiB
C
306 lines
8.2 KiB
C
/* Main simulator entry points specific to the M32R.
|
||
Copyright (C) 1996, 1997, 1998, 1999, 2003, 2007, 2008, 2009, 2010
|
||
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/>. */
|
||
|
||
#include "sim-main.h"
|
||
#include "sim-options.h"
|
||
#include "libiberty.h"
|
||
#include "bfd.h"
|
||
|
||
#ifdef HAVE_STRING_H
|
||
#include <string.h>
|
||
#else
|
||
#ifdef HAVE_STRINGS_H
|
||
#include <strings.h>
|
||
#endif
|
||
#endif
|
||
#ifdef HAVE_STDLIB_H
|
||
#include <stdlib.h>
|
||
#endif
|
||
|
||
static void free_state (SIM_DESC);
|
||
static void print_m32r_misc_cpu (SIM_CPU *cpu, int verbose);
|
||
|
||
/* Records simulator descriptor so utilities like m32r_dump_regs can be
|
||
called from gdb. */
|
||
SIM_DESC current_state;
|
||
|
||
/* Cover function of sim_state_free to free the cpu buffers as well. */
|
||
|
||
static void
|
||
free_state (SIM_DESC sd)
|
||
{
|
||
if (STATE_MODULES (sd) != NULL)
|
||
sim_module_uninstall (sd);
|
||
sim_cpu_free_all (sd);
|
||
sim_state_free (sd);
|
||
}
|
||
|
||
/* Create an instance of the simulator. */
|
||
|
||
SIM_DESC
|
||
sim_open (kind, callback, abfd, argv)
|
||
SIM_OPEN_KIND kind;
|
||
host_callback *callback;
|
||
struct bfd *abfd;
|
||
char **argv;
|
||
{
|
||
SIM_DESC sd = sim_state_alloc (kind, callback);
|
||
char c;
|
||
int i;
|
||
|
||
/* The cpu data is kept in a separately allocated chunk of memory. */
|
||
if (sim_cpu_alloc_all (sd, 1, cgen_cpu_max_extra_bytes ()) != SIM_RC_OK)
|
||
{
|
||
free_state (sd);
|
||
return 0;
|
||
}
|
||
|
||
#if 0 /* FIXME: pc is in mach-specific struct */
|
||
/* FIXME: watchpoints code shouldn't need this */
|
||
{
|
||
SIM_CPU *current_cpu = STATE_CPU (sd, 0);
|
||
STATE_WATCHPOINTS (sd)->pc = &(PC);
|
||
STATE_WATCHPOINTS (sd)->sizeof_pc = sizeof (PC);
|
||
}
|
||
#endif
|
||
|
||
if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK)
|
||
{
|
||
free_state (sd);
|
||
return 0;
|
||
}
|
||
|
||
#ifdef HAVE_DV_SOCKSER /* FIXME: was done differently before */
|
||
if (dv_sockser_install (sd) != SIM_RC_OK)
|
||
{
|
||
free_state (sd);
|
||
return 0;
|
||
}
|
||
#endif
|
||
|
||
#if 0 /* FIXME: 'twould be nice if we could do this */
|
||
/* These options override any module options.
|
||
Obviously ambiguity should be avoided, however the caller may wish to
|
||
augment the meaning of an option. */
|
||
if (extra_options != NULL)
|
||
sim_add_option_table (sd, extra_options);
|
||
#endif
|
||
|
||
/* getopt will print the error message so we just have to exit if this fails.
|
||
FIXME: Hmmm... in the case of gdb we need getopt to call
|
||
print_filtered. */
|
||
if (sim_parse_args (sd, argv) != SIM_RC_OK)
|
||
{
|
||
free_state (sd);
|
||
return 0;
|
||
}
|
||
|
||
/* Allocate a handler for the control registers and other devices
|
||
if no memory for that range has been allocated by the user.
|
||
All are allocated in one chunk to keep things from being
|
||
unnecessarily complicated. */
|
||
if (sim_core_read_buffer (sd, NULL, read_map, &c, M32R_DEVICE_ADDR, 1) == 0)
|
||
sim_core_attach (sd, NULL,
|
||
0 /*level*/,
|
||
access_read_write,
|
||
0 /*space ???*/,
|
||
M32R_DEVICE_ADDR, M32R_DEVICE_LEN /*nr_bytes*/,
|
||
0 /*modulo*/,
|
||
&m32r_devices,
|
||
NULL /*buffer*/);
|
||
|
||
/* Allocate core managed memory if none specified by user.
|
||
Use address 4 here in case the user wanted address 0 unmapped. */
|
||
if (sim_core_read_buffer (sd, NULL, read_map, &c, 4, 1) == 0)
|
||
sim_do_commandf (sd, "memory region 0,0x%x", M32R_DEFAULT_MEM_SIZE);
|
||
|
||
/* check for/establish the reference program image */
|
||
if (sim_analyze_program (sd,
|
||
(STATE_PROG_ARGV (sd) != NULL
|
||
? *STATE_PROG_ARGV (sd)
|
||
: NULL),
|
||
abfd) != SIM_RC_OK)
|
||
{
|
||
free_state (sd);
|
||
return 0;
|
||
}
|
||
|
||
/* Establish any remaining configuration options. */
|
||
if (sim_config (sd) != SIM_RC_OK)
|
||
{
|
||
free_state (sd);
|
||
return 0;
|
||
}
|
||
|
||
if (sim_post_argv_init (sd) != SIM_RC_OK)
|
||
{
|
||
free_state (sd);
|
||
return 0;
|
||
}
|
||
|
||
/* Open a copy of the cpu descriptor table. */
|
||
{
|
||
CGEN_CPU_DESC cd = m32r_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd)->printable_name,
|
||
CGEN_ENDIAN_BIG);
|
||
for (i = 0; i < MAX_NR_PROCESSORS; ++i)
|
||
{
|
||
SIM_CPU *cpu = STATE_CPU (sd, i);
|
||
CPU_CPU_DESC (cpu) = cd;
|
||
CPU_DISASSEMBLER (cpu) = sim_cgen_disassemble_insn;
|
||
}
|
||
m32r_cgen_init_dis (cd);
|
||
}
|
||
|
||
/* Initialize various cgen things not done by common framework.
|
||
Must be done after m32r_cgen_cpu_open. */
|
||
cgen_init (sd);
|
||
|
||
for (c = 0; c < MAX_NR_PROCESSORS; ++c)
|
||
{
|
||
/* Only needed for profiling, but the structure member is small. */
|
||
memset (CPU_M32R_MISC_PROFILE (STATE_CPU (sd, i)), 0,
|
||
sizeof (* CPU_M32R_MISC_PROFILE (STATE_CPU (sd, i))));
|
||
/* Hook in callback for reporting these stats */
|
||
PROFILE_INFO_CPU_CALLBACK (CPU_PROFILE_DATA (STATE_CPU (sd, i)))
|
||
= print_m32r_misc_cpu;
|
||
}
|
||
|
||
/* Store in a global so things like sparc32_dump_regs can be invoked
|
||
from the gdb command line. */
|
||
current_state = sd;
|
||
|
||
return sd;
|
||
}
|
||
|
||
void
|
||
sim_close (sd, quitting)
|
||
SIM_DESC sd;
|
||
int quitting;
|
||
{
|
||
m32r_cgen_cpu_close (CPU_CPU_DESC (STATE_CPU (sd, 0)));
|
||
sim_module_uninstall (sd);
|
||
}
|
||
|
||
SIM_RC
|
||
sim_create_inferior (sd, abfd, argv, envp)
|
||
SIM_DESC sd;
|
||
struct bfd *abfd;
|
||
char **argv;
|
||
char **envp;
|
||
{
|
||
SIM_CPU *current_cpu = STATE_CPU (sd, 0);
|
||
SIM_ADDR addr;
|
||
|
||
if (abfd != NULL)
|
||
addr = bfd_get_start_address (abfd);
|
||
else
|
||
addr = 0;
|
||
sim_pc_set (current_cpu, addr);
|
||
|
||
#ifdef M32R_LINUX
|
||
m32rbf_h_cr_set (current_cpu,
|
||
m32r_decode_gdb_ctrl_regnum(SPI_REGNUM), 0x1f00000);
|
||
m32rbf_h_cr_set (current_cpu,
|
||
m32r_decode_gdb_ctrl_regnum(SPU_REGNUM), 0x1f00000);
|
||
#endif
|
||
|
||
#if 0
|
||
STATE_ARGV (sd) = sim_copy_argv (argv);
|
||
STATE_ENVP (sd) = sim_copy_argv (envp);
|
||
#endif
|
||
|
||
return SIM_RC_OK;
|
||
}
|
||
|
||
/* PROFILE_CPU_CALLBACK */
|
||
|
||
static void
|
||
print_m32r_misc_cpu (SIM_CPU *cpu, int verbose)
|
||
{
|
||
SIM_DESC sd = CPU_STATE (cpu);
|
||
char buf[20];
|
||
|
||
if (CPU_PROFILE_FLAGS (cpu) [PROFILE_INSN_IDX])
|
||
{
|
||
sim_io_printf (sd, "Miscellaneous Statistics\n\n");
|
||
sim_io_printf (sd, " %-*s %s\n\n",
|
||
PROFILE_LABEL_WIDTH, "Fill nops:",
|
||
sim_add_commas (buf, sizeof (buf),
|
||
CPU_M32R_MISC_PROFILE (cpu)->fillnop_count));
|
||
if (STATE_ARCHITECTURE (sd)->mach == bfd_mach_m32rx)
|
||
sim_io_printf (sd, " %-*s %s\n\n",
|
||
PROFILE_LABEL_WIDTH, "Parallel insns:",
|
||
sim_add_commas (buf, sizeof (buf),
|
||
CPU_M32R_MISC_PROFILE (cpu)->parallel_count));
|
||
if (STATE_ARCHITECTURE (sd)->mach == bfd_mach_m32r2)
|
||
sim_io_printf (sd, " %-*s %s\n\n",
|
||
PROFILE_LABEL_WIDTH, "Parallel insns:",
|
||
sim_add_commas (buf, sizeof (buf),
|
||
CPU_M32R_MISC_PROFILE (cpu)->parallel_count));
|
||
}
|
||
}
|
||
|
||
void
|
||
sim_do_command (sd, cmd)
|
||
SIM_DESC sd;
|
||
char *cmd;
|
||
{
|
||
char **argv;
|
||
|
||
if (cmd == NULL)
|
||
return;
|
||
|
||
argv = buildargv (cmd);
|
||
|
||
if (argv[0] != NULL
|
||
&& strcasecmp (argv[0], "info") == 0
|
||
&& argv[1] != NULL
|
||
&& strncasecmp (argv[1], "reg", 3) == 0)
|
||
{
|
||
SI val;
|
||
|
||
/* We only support printing bbpsw,bbpc here as there is no equivalent
|
||
functionality in gdb. */
|
||
if (argv[2] == NULL)
|
||
sim_io_eprintf (sd, "Missing register in `%s'\n", cmd);
|
||
else if (argv[3] != NULL)
|
||
sim_io_eprintf (sd, "Too many arguments in `%s'\n", cmd);
|
||
else if (strcasecmp (argv[2], "bbpsw") == 0)
|
||
{
|
||
val = m32rbf_h_cr_get (STATE_CPU (sd, 0), H_CR_BBPSW);
|
||
sim_io_printf (sd, "bbpsw 0x%x %d\n", val, val);
|
||
}
|
||
else if (strcasecmp (argv[2], "bbpc") == 0)
|
||
{
|
||
val = m32rbf_h_cr_get (STATE_CPU (sd, 0), H_CR_BBPC);
|
||
sim_io_printf (sd, "bbpc 0x%x %d\n", val, val);
|
||
}
|
||
else
|
||
sim_io_eprintf (sd, "Printing of register `%s' not supported with `sim info'\n",
|
||
argv[2]);
|
||
}
|
||
else
|
||
{
|
||
if (sim_args_command (sd, cmd) != SIM_RC_OK)
|
||
sim_io_eprintf (sd, "Unknown sim command `%s'\n", cmd);
|
||
}
|
||
|
||
freeargv (argv);
|
||
}
|