388 lines
9.6 KiB
C
388 lines
9.6 KiB
C
/* Simulator memory option handling.
|
|
Copyright (C) 1996, 1997 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 "sim-assert.h"
|
|
#include "sim-options.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
|
|
|
|
/* Memory command line options. */
|
|
|
|
enum {
|
|
OPTION_MEMORY_DELETE = OPTION_START,
|
|
OPTION_MEMORY_REGION,
|
|
OPTION_MEMORY_SIZE,
|
|
OPTION_MEMORY_INFO,
|
|
OPTION_MEMORY_ALIAS,
|
|
OPTION_MEMORY_CLEAR,
|
|
};
|
|
|
|
static DECLARE_OPTION_HANDLER (memory_option_handler);
|
|
|
|
static const OPTION memory_options[] =
|
|
{
|
|
{ {"memory-delete", required_argument, NULL, OPTION_MEMORY_DELETE },
|
|
'\0', "ADDRESS|all", "Delete memory at ADDRESS (all addresses)",
|
|
memory_option_handler },
|
|
{ {"delete-memory", required_argument, NULL, OPTION_MEMORY_DELETE },
|
|
'\0', "ADDRESS", NULL,
|
|
memory_option_handler },
|
|
|
|
{ {"memory-region", required_argument, NULL, OPTION_MEMORY_REGION },
|
|
'\0', "ADDRESS,SIZE[,MODULO]", "Add a memory region",
|
|
memory_option_handler },
|
|
|
|
{ {"memory-alias", required_argument, NULL, OPTION_MEMORY_ALIAS },
|
|
'\0', "ADDRESS,SIZE{,ADDRESS}", "Add memory shadow",
|
|
memory_option_handler },
|
|
|
|
{ {"memory-size", required_argument, NULL, OPTION_MEMORY_SIZE },
|
|
'\0', "SIZE", "Add memory at address zero",
|
|
memory_option_handler },
|
|
|
|
{ {"memory-clear", no_argument, NULL, OPTION_MEMORY_CLEAR },
|
|
'\0', NULL, "Clear all memory regions",
|
|
memory_option_handler },
|
|
|
|
{ {"memory-info", no_argument, NULL, OPTION_MEMORY_INFO },
|
|
'\0', NULL, "List configurable memory regions",
|
|
memory_option_handler },
|
|
{ {"info-memory", no_argument, NULL, OPTION_MEMORY_INFO },
|
|
'\0', NULL, NULL,
|
|
memory_option_handler },
|
|
|
|
{ {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL }
|
|
};
|
|
|
|
|
|
static sim_memopt *
|
|
do_memopt_add (SIM_DESC sd,
|
|
int level,
|
|
int space,
|
|
address_word addr,
|
|
address_word nr_bytes,
|
|
unsigned modulo,
|
|
sim_memopt **entry,
|
|
void *buffer)
|
|
{
|
|
sim_core_attach (sd, NULL,
|
|
level, access_read_write_exec, space,
|
|
addr, nr_bytes, modulo, NULL, buffer);
|
|
while ((*entry) != NULL)
|
|
entry = &(*entry)->next;
|
|
(*entry) = ZALLOC (sim_memopt);
|
|
(*entry)->level = level;
|
|
(*entry)->space = space;
|
|
(*entry)->addr = addr;
|
|
(*entry)->nr_bytes = nr_bytes;
|
|
(*entry)->modulo = modulo;
|
|
(*entry)->buffer = buffer;
|
|
return (*entry);
|
|
}
|
|
|
|
static SIM_RC
|
|
do_memopt_delete (SIM_DESC sd,
|
|
int level,
|
|
int space,
|
|
address_word addr)
|
|
{
|
|
sim_memopt **entry = &STATE_MEMOPT (sd);
|
|
sim_memopt *alias;
|
|
while ((*entry) != NULL
|
|
&& ((*entry)->level != level
|
|
|| (*entry)->space != space
|
|
|| (*entry)->addr != addr))
|
|
entry = &(*entry)->next;
|
|
if ((*entry) == NULL)
|
|
{
|
|
sim_io_eprintf (sd, "Memory at 0x%lx not found, not deleted\n",
|
|
(long) addr);
|
|
return SIM_RC_FAIL;
|
|
}
|
|
/* delete any buffer */
|
|
if ((*entry)->buffer != NULL)
|
|
zfree ((*entry)->buffer);
|
|
/* delete it and its aliases */
|
|
alias = *entry;
|
|
*entry = (*entry)->next;
|
|
while (alias != NULL)
|
|
{
|
|
sim_memopt *dead = alias;
|
|
alias = alias->alias;
|
|
sim_core_detach (sd, NULL, dead->level, dead->space, dead->addr);
|
|
zfree (dead);
|
|
}
|
|
return SIM_RC_OK;
|
|
}
|
|
|
|
|
|
static char *
|
|
parse_size (char *chp,
|
|
address_word *nr_bytes,
|
|
unsigned *modulo)
|
|
{
|
|
/* <nr_bytes> [ "%" <modulo> ] */
|
|
*nr_bytes = strtoul (chp, &chp, 0);
|
|
if (*chp == '%')
|
|
{
|
|
*modulo = strtoul (chp + 1, &chp, 0);
|
|
}
|
|
return chp;
|
|
}
|
|
|
|
|
|
static char *
|
|
parse_addr (char *chp,
|
|
int *level,
|
|
int *space,
|
|
address_word *addr)
|
|
{
|
|
/* [ <space> ": " ] <addr> [ "@" <level> ] */
|
|
*addr = strtoul (chp, &chp, 0);
|
|
if (*chp == ':')
|
|
{
|
|
*space = *addr;
|
|
*addr = strtoul (chp + 1, &chp, 0);
|
|
}
|
|
if (*chp == '@')
|
|
{
|
|
*level = strtoul (chp + 1, &chp, 0);
|
|
}
|
|
return chp;
|
|
}
|
|
|
|
|
|
static SIM_RC
|
|
memory_option_handler (SIM_DESC sd, sim_cpu *cpu, int opt,
|
|
char *arg, int is_command)
|
|
{
|
|
switch (opt)
|
|
{
|
|
|
|
case OPTION_MEMORY_DELETE:
|
|
if (strcasecmp (arg, "all") == 0)
|
|
{
|
|
while (STATE_MEMOPT (sd) != NULL)
|
|
do_memopt_delete (sd,
|
|
STATE_MEMOPT (sd)->level,
|
|
STATE_MEMOPT (sd)->space,
|
|
STATE_MEMOPT (sd)->addr);
|
|
return SIM_RC_OK;
|
|
}
|
|
else
|
|
{
|
|
int level = 0;
|
|
int space = 0;
|
|
address_word addr = 0;
|
|
parse_addr (arg, &level, &space, &addr);
|
|
return do_memopt_delete (sd, level, space, addr);
|
|
}
|
|
|
|
case OPTION_MEMORY_REGION:
|
|
{
|
|
char *chp = arg;
|
|
int level = 0;
|
|
int space = 0;
|
|
address_word addr = 0;
|
|
address_word nr_bytes = 0;
|
|
unsigned modulo = 0;
|
|
/* parse the arguments */
|
|
chp = parse_addr (chp, &level, &space, &addr);
|
|
if (*chp != ',')
|
|
{
|
|
sim_io_eprintf (sd, "Missing size for memory-region\n");
|
|
return SIM_RC_FAIL;
|
|
}
|
|
chp = parse_size (chp + 1, &nr_bytes, &modulo);
|
|
/* old style */
|
|
if (*chp == ',')
|
|
modulo = strtoul (chp + 1, &chp, 0);
|
|
/* try to attach/insert it */
|
|
do_memopt_add (sd, level, space, addr, nr_bytes, modulo,
|
|
&STATE_MEMOPT (sd), NULL);
|
|
return SIM_RC_OK;
|
|
}
|
|
|
|
case OPTION_MEMORY_ALIAS:
|
|
{
|
|
char *chp = arg;
|
|
int level = 0;
|
|
int space = 0;
|
|
address_word addr = 0;
|
|
address_word nr_bytes = 0;
|
|
unsigned modulo = 0;
|
|
sim_memopt *entry;
|
|
/* parse the arguments */
|
|
chp = parse_addr (chp, &level, &space, &addr);
|
|
if (*chp != ',')
|
|
{
|
|
sim_io_eprintf (sd, "Missing size for memory-region\n");
|
|
return SIM_RC_FAIL;
|
|
}
|
|
chp = parse_size (chp + 1, &nr_bytes, &modulo);
|
|
/* try to attach/insert the main record */
|
|
entry = do_memopt_add (sd, level, space, addr, nr_bytes, modulo,
|
|
&STATE_MEMOPT (sd),
|
|
zalloc (modulo ? modulo : nr_bytes));
|
|
/* now attach all the aliases */
|
|
while (*chp == ',')
|
|
{
|
|
int a_level = level;
|
|
int a_space = space;
|
|
address_word a_addr = addr;
|
|
chp = parse_addr (chp + 1, &a_level, &a_space, &a_addr);
|
|
do_memopt_add (sd, a_level, a_space, a_addr, nr_bytes, modulo,
|
|
&entry->alias, entry->buffer);
|
|
}
|
|
return SIM_RC_OK;
|
|
}
|
|
|
|
case OPTION_MEMORY_SIZE:
|
|
{
|
|
int level = 0;
|
|
int space = 0;
|
|
address_word addr = 0;
|
|
address_word nr_bytes = 0;
|
|
unsigned modulo = 0;
|
|
/* parse the arguments */
|
|
parse_size (arg, &nr_bytes, &modulo);
|
|
/* try to attach/insert it */
|
|
do_memopt_add (sd, level, space, addr, nr_bytes, modulo,
|
|
&STATE_MEMOPT (sd), NULL);
|
|
return SIM_RC_OK;
|
|
}
|
|
|
|
case OPTION_MEMORY_CLEAR:
|
|
{
|
|
sim_memopt *entry;
|
|
for (entry = STATE_MEMOPT (sd); entry != NULL; entry = entry->next)
|
|
{
|
|
sim_memopt *alias;
|
|
for (alias = entry; alias != NULL; alias = alias->next)
|
|
{
|
|
unsigned8 zero = 0;
|
|
address_word nr_bytes;
|
|
if (alias->modulo != 0)
|
|
nr_bytes = alias->modulo;
|
|
else
|
|
nr_bytes = alias->nr_bytes;
|
|
sim_core_write_buffer (sd, NULL, sim_core_write_map,
|
|
&zero,
|
|
alias->addr + nr_bytes,
|
|
sizeof (zero));
|
|
|
|
}
|
|
}
|
|
return SIM_RC_OK;
|
|
break;
|
|
}
|
|
|
|
case OPTION_MEMORY_INFO:
|
|
{
|
|
sim_memopt *entry;
|
|
sim_io_printf (sd, "Memory maps:\n");
|
|
for (entry = STATE_MEMOPT (sd); entry != NULL; entry = entry->next)
|
|
{
|
|
sim_memopt *alias;
|
|
sim_io_printf (sd, " memory");
|
|
if (entry->alias == NULL)
|
|
sim_io_printf (sd, " region ");
|
|
else
|
|
sim_io_printf (sd, " alias ");
|
|
if (entry->space != 0)
|
|
sim_io_printf (sd, "0x%lx:", (long) entry->space);
|
|
sim_io_printf (sd, "0x%08lx", (long) entry->addr);
|
|
if (entry->level != 0)
|
|
sim_io_printf (sd, "@0x%lx", (long) entry->level);
|
|
sim_io_printf (sd, ",0x%lx",
|
|
(long) entry->nr_bytes);
|
|
if (entry->modulo != 0)
|
|
sim_io_printf (sd, "%%0x%lx", (long) entry->modulo);
|
|
for (alias = entry->alias;
|
|
alias != NULL;
|
|
alias = alias->next)
|
|
{
|
|
if (alias->space != 0)
|
|
sim_io_printf (sd, "0x%lx:", (long) alias->space);
|
|
sim_io_printf (sd, ",0x%08lx", (long) alias->addr);
|
|
if (alias->level != 0)
|
|
sim_io_printf (sd, "@0x%lx", (long) alias->level);
|
|
}
|
|
sim_io_printf (sd, "\n");
|
|
}
|
|
return SIM_RC_OK;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
sim_io_eprintf (sd, "Unknown memory option %d\n", opt);
|
|
return SIM_RC_FAIL;
|
|
|
|
}
|
|
|
|
return SIM_RC_FAIL;
|
|
}
|
|
|
|
|
|
/* "memory" module install handler.
|
|
|
|
This is called via sim_module_install to install the "memory" subsystem
|
|
into the simulator. */
|
|
|
|
static MODULE_INIT_FN sim_memory_init;
|
|
static MODULE_UNINSTALL_FN sim_memory_uninstall;
|
|
|
|
SIM_RC
|
|
sim_memopt_install (SIM_DESC sd)
|
|
{
|
|
SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
|
|
sim_add_option_table (sd, NULL, memory_options);
|
|
sim_module_add_uninstall_fn (sd, sim_memory_uninstall);
|
|
sim_module_add_init_fn (sd, sim_memory_init);
|
|
return SIM_RC_OK;
|
|
}
|
|
|
|
|
|
/* Uninstall the "memory" subsystem from the simulator. */
|
|
|
|
static void
|
|
sim_memory_uninstall (SIM_DESC sd)
|
|
{
|
|
/* FIXME: free buffers, etc. */
|
|
}
|
|
|
|
|
|
static SIM_RC
|
|
sim_memory_init (SIM_DESC sd)
|
|
{
|
|
/* FIXME: anything needed? */
|
|
return SIM_RC_OK;
|
|
}
|