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Finish implementation of sim-memopt.

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Use in d30v and tic80.
Make available a generic sim_read, sim_write implementation.
This commit is contained in:
Andrew Cagney 1997-09-04 10:08:44 +00:00
parent a34abff813
commit 6dbaff8f60
10 changed files with 194 additions and 82 deletions
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1
sim/common/.Sanitize
View file

@ -66,6 +66,7 @@ sim-events.h
sim-fpu.c
sim-fpu.h
sim-hload.c
sim-hrw.c
sim-inline.c
sim-inline.h
sim-io.c

18
sim/common/ChangeLog
View file

@ -1,5 +1,23 @@
Thu Sep 4 09:27:54 1997 Andrew Cagney <cagney@b1.cygnus.com>
* sim-config.c (sim_config): Add assert for SIM_MAGIC_NUMBER.
* sim-utils.h (NZALLOC): Define - zalloc * N.
* sim-hrw.c (sim_read, sim_write): New file. Provide generic
implementation of read/write functions.
* Make-common.in (sim-hrw.o): New target.
* sim-base.h (STATE_MEMOPT_P): Delete, simulators _always_ add
memory.
* sim-memopt.c (memory_option_handler): Implement memory-size
command. Implement memory-alias command. Let memory-delete delete
all memory regions.
(add_memopt): New function. Add a memory region.
(do_memopt_delete): New function. Delete a memory region.
* sim-utils.c (sim_elapsed_time_get): Never return zero.
* sim-core.c (sim_core_detach): New function.

1
sim/common/sim-base.h
View file

@ -202,7 +202,6 @@ typedef struct {
/* memory-options for managing the core */
#define STATE_MEMOPT(sd) ((sd)->base.memopt)
#define STATE_MEMOPT_P(sd) (STATE_MEMOPT (sd) != NULL)
sim_memopt *memopt;
/* event handler */

2
sim/common/sim-config.c
View file

@ -20,6 +20,7 @@
#include "sim-main.h"
#include "sim-assert.h"
#include "bfd.h"
@ -135,6 +136,7 @@ SIM_RC
sim_config (SIM_DESC sd)
{
int prefered_target_byte_order;
SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
/* extract all relevant information */
if (STATE_PROG_BFD (sd) == NULL)

41
sim/common/sim-hrw.c Normal file
View file

@ -0,0 +1,41 @@
/* Generic memory read/write for hardware simulator models.
Copyright (C) 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"
/* Generic implementation of sim_read that works with simulators
modeling real hardware */
int
sim_read (SIM_DESC sd, SIM_ADDR mem, unsigned char *buf, int length)
{
SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
return sim_core_read_buffer (sd, NULL, sim_core_write_map,
buf, mem, length);
}
int
sim_write (SIM_DESC sd, SIM_ADDR mem, unsigned char *buf, int length)
{
SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
return sim_core_write_buffer (sd, NULL, sim_core_write_map,
buf, mem, length);
}

158
sim/common/sim-memopt.c
View file

@ -48,8 +48,11 @@ static DECLARE_OPTION_HANDLER (memory_option_handler);
static const OPTION memory_options[] =
{
{ {"memory-delete", optional_argument, NULL, OPTION_MEMORY_DELETE },
'\0', "ADDRESS", "Delete memory at ADDRESS (all addresses)",
memory_option_handler },
{ {"delete-memory", required_argument, NULL, OPTION_MEMORY_DELETE },
'\0', "ADDRESS", "Delete memory at ADDRESS",
'\0', "ADDRESS", NULL,
memory_option_handler },
{ {"memory-region", required_argument, NULL, OPTION_MEMORY_REGION },
@ -68,14 +71,71 @@ static const OPTION memory_options[] =
'\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, "Add memory at address zero",
'\0', NULL, NULL,
memory_option_handler },
{ {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL }
};
static sim_memopt *
do_memopt_add (sd, addr, nr_bytes, modulo, entry, buffer)
SIM_DESC sd;
address_word addr;
address_word nr_bytes;
unsigned modulo;
sim_memopt **entry;
void *buffer;
{
sim_core_attach (sd, NULL,
attach_raw_memory, access_read_write_exec, 0,
addr, nr_bytes, modulo, NULL, buffer);
while ((*entry) != NULL)
entry = &(*entry)->next;
(*entry) = ZALLOC (sim_memopt);
(*entry)->addr = addr;
(*entry)->nr_bytes = nr_bytes;
(*entry)->modulo = modulo;
(*entry)->buffer = buffer;
return (*entry);
}
static SIM_RC
do_memopt_delete (sd, addr)
SIM_DESC sd;
address_word addr;
{
sim_memopt **entry = &STATE_MEMOPT (sd);
sim_memopt *alias;
while ((*entry) != NULL && (*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 = alias->next;
while (alias != NULL)
{
sim_memopt *dead = alias;
alias = alias->alias;
sim_core_detach (sd, NULL, attach_raw_memory, 0, dead->addr);
zfree (dead);
}
return SIM_RC_OK;
}
static SIM_RC
memory_option_handler (sd, opt, arg, is_command)
SIM_DESC sd;
@ -87,33 +147,17 @@ memory_option_handler (sd, opt, arg, is_command)
{
case OPTION_MEMORY_DELETE:
{
address_word addr = strtoul (arg, NULL, 0);
sim_memopt **entry = &STATE_MEMOPT (sd);
sim_memopt *alias;
while ((*entry) != NULL && (*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)->buf != NULL)
zfree ((*entry)->buf);
/* delete it and its aliases */
alias = *entry;
*entry = alias->next;
while (alias != NULL)
{
sim_memopt *dead = alias;
alias = alias->alias;
sim_core_detach (sd, NULL, attach_raw_memory, 0, dead->addr);
zfree (dead);
}
return SIM_RC_OK;
}
if (arg == NULL)
{
while (STATE_MEMOPT (sd) != NULL)
do_memopt_delete (sd, STATE_MEMOPT (sd)->addr);
return SIM_RC_OK;
}
else
{
address_word addr = strtoul (arg, NULL, 0);
return do_memopt_delete (sd, addr);
}
case OPTION_MEMORY_REGION:
{
@ -121,7 +165,6 @@ memory_option_handler (sd, opt, arg, is_command)
address_word addr = 0;
address_word nr_bytes = 0;
unsigned modulo = 0;
sim_memopt **entry = &STATE_MEMOPT (sd);
/* parse the arguments */
addr = strtoul (chp, &chp, 0);
if (*chp != ',')
@ -133,31 +176,48 @@ memory_option_handler (sd, opt, arg, is_command)
nr_bytes = strtoul (chp, &chp, 0);
if (*chp == ',')
modulo = strtoul (chp + 1, NULL, 0);
/* try to attach it */
sim_core_attach (sd, NULL,
attach_raw_memory, access_read_write_exec, 0,
addr, nr_bytes, modulo, NULL, NULL);
/* ok, so insert it */
while ((*entry) != NULL)
entry = &(*entry)->next;
(*entry) = ZALLOC (sim_memopt);
(*entry)->addr = addr;
(*entry)->nr_bytes = nr_bytes;
(*entry)->modulo = modulo;
/* try to attach/insert it */
do_memopt_add (sd, addr, nr_bytes, modulo, &STATE_MEMOPT (sd), NULL);
return SIM_RC_OK;
}
case OPTION_MEMORY_ALIAS:
{
sim_io_eprintf (sd, "memory-alias not supported for for this simulator\n");
break;
char *chp = arg;
address_word addr = 0;
address_word nr_bytes = 0;
sim_memopt *entry;
/* parse the arguments */
addr = strtoul (chp, &chp, 0);
if (*chp != ',')
{
sim_io_eprintf (sd, "Missing size for memory-region\n");
return SIM_RC_FAIL;
}
chp++;
nr_bytes = strtoul (chp, &chp, 0);
/* try to attach/insert the main record */
entry = do_memopt_add (sd, addr, nr_bytes, 0/*modulo*/,
&STATE_MEMOPT (sd), zalloc (nr_bytes));
/* now attach all the aliases */
while (*chp == ',')
{
address_word alias;
chp++;
alias = strtoul (chp, &chp, 0);
do_memopt_add (sd, alias, nr_bytes, 0/*modulo*/,
&entry->alias, entry->buffer);
}
return SIM_RC_OK;
}
case OPTION_MEMORY_SIZE:
{
sim_io_eprintf (sd, "memory-size not supported for for this simulator\n");
return SIM_RC_FAIL;
break;
address_word nr_bytes = strtoul (arg, NULL, 0);
/* try to attach/insert it */
do_memopt_add (sd, 0/*addr*/, nr_bytes, 0/*modulo*/,
&STATE_MEMOPT (sd), NULL);
return SIM_RC_OK;
}
case OPTION_MEMORY_CLEAR:
@ -206,8 +266,10 @@ memory_option_handler (sd, opt, arg, is_command)
sim_io_printf (sd, " alias 0x%08lx,0x%lx",
(long) entry->addr,
(long) entry->nr_bytes);
for (alias = entry->alias; alias != NULL; alias = alias->next)
sim_io_printf (sd, ",0x%08lx", entry->addr);
for (alias = entry->alias;
alias != NULL;
alias = alias->next)
sim_io_printf (sd, ",0x%08lx", alias->addr);
}
sim_io_printf (sd, "\n");
}

1
sim/common/sim-utils.h
View file

@ -26,6 +26,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
void *zalloc (unsigned long size);
#define ZALLOC(TYPE) (TYPE*)zalloc(sizeof (TYPE))
#define NZALLOC(TYPE,N) (TYPE*)zalloc(sizeof (TYPE) * (N))
void zfree(void*);

6
sim/tic80/ChangeLog
View file

@ -1,3 +1,9 @@
Thu Sep 4 17:45:14 1997 Andrew Cagney <cagney@b1.cygnus.com>
* sim-calls.c (sim_open): Add memory before parsing arguments.
(sim_read): Delete, replace with sim-hrw.
(sim_write): Delete, replace with sim-hrw.
Thu Sep 4 10:48:57 1997 Andrew Cagney <cagney@b1.cygnus.com>
* sim-calls.c (sim_open): Use sim_do_command to add memory, only

1
sim/tic80/Makefile.in
View file

@ -16,6 +16,7 @@ SIM_OBJS = sim-endian.o sim-bits.o sim-config.o \
sim-events.o \
sim-core.o \
sim-hload.o \
sim-hrw.o \
sim-io.o \
sim-utils.o \
sim-load.o \

47
sim/tic80/sim-calls.c
View file

@ -50,11 +50,25 @@ sim_open (SIM_OPEN_KIND kind,
struct _bfd *abfd,
char **argv)
{
char *buf;
SIM_DESC sd = sim_state_alloc (kind, callback);
if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK)
return 0;
#define TIC80_MEM_START 0x2000000
#define TIC80_MEM_SIZE 0x100000
/* main memory */
asprintf (&buf, "memory region 0x%lx,0x%lx",
TIC80_MEM_START, TIC80_MEM_SIZE);
sim_do_command (sd, buf);
free (buf);
/* interrupt memory */
sim_do_command (sd, "memory region 0x1010000,0x1000");
/* some memory at zero */
sim_do_command (sd, "memory region 0,0x100000");
/* 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. */
@ -92,23 +106,6 @@ sim_open (SIM_OPEN_KIND kind,
return 0;
}
#define TIC80_MEM_START 0x2000000
#define TIC80_MEM_SIZE 0x100000
if (!STATE_MEMOPT_P (sd))
{
char *buf;
/* main memory */
asprintf (&buf, "memory region 0x%lx,0x%lx",
TIC80_MEM_START, TIC80_MEM_SIZE);
sim_do_command (sd, buf);
free (buf);
/* interrupt memory */
sim_do_command (sd, "memory region 0x1010000,0x1000");
/* some memory at zero */
sim_do_command (sd, "memory region 0,0x100000");
}
/* FIXME: for now */
return sd;
}
@ -123,22 +120,6 @@ sim_close (SIM_DESC sd, int quitting)
}
int
sim_read (SIM_DESC sd, SIM_ADDR mem, unsigned char *buf, int length)
{
return sim_core_read_buffer (sd, NULL, sim_core_write_map,
buf, mem, length);
}
int
sim_write (SIM_DESC sd, SIM_ADDR mem, unsigned char *buf, int length)
{
return sim_core_write_buffer (sd, NULL, sim_core_write_map,
buf, mem, length);
}
/* FIXME - these magic numbers need to be moved elsewhere */
#define SP_REGNUM 1 /* Contains address of top of stack */