darling-gdb/sim/mn10200/interp.c
Andrew Cagney 6b4a89357a Index: arm/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* wrapper.c (sim_create_inferior, sim_open): Rename _bfd to bfd.

Index: common/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* sim-utils.h (sim_analyze_program, sim_load_file): Rename _bfd to bfd.
	* sim-hload.c (sim_load), sim-base.h (sim_state_base): Ditto.
	* nrun.c (main): Ditto.

Index: d10v/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* interp.c (sim_open, sim_create_inferior): Rename _bfd to bfd.

Index: erc32/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* interf.c (sim_open, sim_create_inferior): Rename _bfd to bfd.

Index: h8300/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* compile.c (sim_open, sim_create_inferior): Rename _bfd to bfd.

Index: h8500/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* compile.c (sim_open, sim_create_inferior): Rename _bfd to bfd.

Index: i960/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* sim-if.c (sim_open, sim_create_inferior): Rename _bfd to bfd.

Index: m32r/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* sim-if.c (sim_open, sim_create_inferior): Rename _bfd to bfd.

Index: m68hc11/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* interp.c (sim_prepare_for_program, sim_open)
	(sim_create_inferior): Rename _bfd to bfd.

Index: mcore/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* interp.c (sim_open, sim_create_inferior): Rename _bfd to bfd.

Index: mips/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* interp.c (sim_open):
	(sim_create_inferior):

Index: mn10200/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* interp.c (sim_open, sim_create_inferior): Rename _bfd to bfd.

Index: mn10300/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* interp.c (sim_open, sim_create_inferior, sim_open)
	(sim_create_inferior): Rename _bfd to bfd.

Index: ppc/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* sim_calls.c (sim_open, sim_create_inferior): Rename _bfd to bfd.

Index: sh/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* interp.c (init_dsp, sim_open, sim_create_inferior): Rename _bfd
	to bfd.

Index: v850/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* interp.c (sim_open, sim_create_inferior): Rename _bfd to bfd.

Index: z8k/ChangeLog
2003-02-27  Andrew Cagney  <cagney@redhat.com>

	* iface.c (sim_open, sim_create_inferior): Rename _bfd to bfd.
2003-02-27 23:26:34 +00:00

821 lines
14 KiB
C

#include <signal.h>
#include "sysdep.h"
#include "bfd.h"
#include "mn10200_sim.h"
#ifdef NEED_UI_LOOP_HOOK
/* How often to run the ui_loop update, when in use */
#define UI_LOOP_POLL_INTERVAL 0x60000
/* Counter for the ui_loop_hook update */
static long ui_loop_hook_counter = UI_LOOP_POLL_INTERVAL;
/* Actual hook to call to run through gdb's gui event loop */
extern int (*ui_loop_hook) (int);
#endif /* NEED_UI_LOOP_HOOK */
host_callback *mn10200_callback;
int mn10200_debug;
static SIM_OPEN_KIND sim_kind;
static char *myname;
static void dispatch PARAMS ((uint32, uint32, int));
static long hash PARAMS ((long));
static void init_system PARAMS ((void));
#define MAX_HASH 127
struct hash_entry
{
struct hash_entry *next;
long opcode;
long mask;
struct simops *ops;
#ifdef HASH_STAT
unsigned long count;
#endif
};
int max_mem = 0;
struct hash_entry hash_table[MAX_HASH+1];
/* This probably doesn't do a very good job at bucket filling, but
it's simple... */
static INLINE long
hash(insn)
long insn;
{
/* These are one byte insns. */
if ((insn & 0xffffff00) == 0x00)
{
if ((insn & 0xf0) != 0x80)
return ((insn & 0xf0) >> 4) & 0x7f;
if ((insn & 0xf0) == 0x80
&& (insn & 0x0c) >> 2 != (insn & 0x03))
return (insn & 0xf0) & 0x7f;
return (insn & 0xff) & 0x7f;
}
if ((insn & 0xffff0000) == 0)
{
if ((insn & 0xf000) == 0xd000)
return ((insn & 0xfc00) >> 10) & 0x7f;
if ((insn & 0xf000) == 0xe000)
return ((insn & 0xff00) >> 8) & 0x7f;
if ((insn & 0xf200) == 0xf200)
return ((insn & 0xfff0) >> 4) & 0x7f;
if ((insn & 0xc000) == 0x4000
|| (insn & 0xf000) == 0x8000)
return ((insn & 0xf000) >> 8) & 0x7f;
if ((insn & 0xf200) == 0xf000)
return ((insn & 0xffc0) >> 8) & 0x7f;
return ((insn & 0xff00) >> 8) & 0x7f;
}
if ((insn & 0xff000000) == 0)
{
if ((insn & 0xf00000) != 0xf00000
|| (insn & 0xfc0000) == 0xf80000)
return ((insn & 0xfc0000) >> 16) & 0x7f;
if ((insn & 0xff0000) == 0xf50000)
return ((insn & 0xfff000) >> 12) & 0x7f;
return ((insn & 0xff0000) >> 16) & 0x7f;
}
return ((insn & 0xfff0000) >> 20) & 0x7f;
}
static INLINE void
dispatch (insn, extension, length)
uint32 insn;
uint32 extension;
int length;
{
struct hash_entry *h;
h = &hash_table[hash(insn)];
while ((insn & h->mask) != h->opcode
|| (length != h->ops->length))
{
if (!h->next)
{
(*mn10200_callback->printf_filtered) (mn10200_callback,
"ERROR looking up hash for 0x%x, PC=0x%x\n", insn, PC);
exit(1);
}
h = h->next;
}
#ifdef HASH_STAT
h->count++;
#endif
/* Now call the right function. */
(h->ops->func)(insn, extension);
PC += length;
}
/* FIXME These would more efficient to use than load_mem/store_mem,
but need to be changed to use the memory map. */
uint32
get_word (x)
uint8 *x;
{
uint8 *a = x;
return (a[3]<<24) + (a[2]<<16) + (a[1]<<8) + (a[0]);
}
void
put_word (addr, data)
uint8 *addr;
uint32 data;
{
uint8 *a = addr;
a[0] = data & 0xff;
a[1] = (data >> 8) & 0xff;
a[2] = (data >> 16) & 0xff;
a[3] = (data >> 24) & 0xff;
}
void
sim_size (power)
int power;
{
if (State.mem)
free (State.mem);
max_mem = 1 << power;
State.mem = (uint8 *) calloc (1, 1 << power);
if (!State.mem)
{
(*mn10200_callback->printf_filtered) (mn10200_callback, "Allocation of main memory failed.\n");
exit (1);
}
}
static void
init_system ()
{
if (!State.mem)
sim_size(19);
}
int
sim_write (sd,addr, buffer, size)
SIM_DESC sd;
SIM_ADDR addr;
unsigned char *buffer;
int size;
{
int i;
init_system ();
for (i = 0; i < size; i++)
store_byte (addr + i, buffer[i]);
return size;
}
/* Compare two opcode table entries for qsort. */
static int
compare_simops (arg1, arg2)
const PTR arg1;
const PTR arg2;
{
unsigned long code1 = ((struct simops *)arg1)->opcode;
unsigned long code2 = ((struct simops *)arg2)->opcode;
if (code1 < code2)
return -1;
if (code2 < code1)
return 1;
return 0;
}
SIM_DESC
sim_open (kind, cb, abfd, argv)
SIM_OPEN_KIND kind;
host_callback *cb;
struct bfd *abfd;
char **argv;
{
struct simops *s;
struct hash_entry *h;
char **p;
int i;
mn10200_callback = cb;
/* Sort the opcode array from smallest opcode to largest.
This will generally improve simulator performance as the smaller
opcodes are generally preferred to the larger opcodes. */
for (i = 0, s = Simops; s->func; s++, i++)
;
qsort (Simops, i, sizeof (Simops[0]), compare_simops);
sim_kind = kind;
myname = argv[0];
for (p = argv + 1; *p; ++p)
{
if (strcmp (*p, "-E") == 0)
++p; /* ignore endian spec */
else
#ifdef DEBUG
if (strcmp (*p, "-t") == 0)
mn10200_debug = DEBUG;
else
#endif
(*mn10200_callback->printf_filtered) (mn10200_callback, "ERROR: unsupported option(s): %s\n",*p);
}
/* put all the opcodes in the hash table */
for (s = Simops; s->func; s++)
{
h = &hash_table[hash(s->opcode)];
/* go to the last entry in the chain */
while (h->next)
{
/* Don't insert the same opcode more than once. */
if (h->opcode == s->opcode
&& h->mask == s->mask
&& h->ops == s)
break;
else
h = h->next;
}
/* Don't insert the same opcode more than once. */
if (h->opcode == s->opcode
&& h->mask == s->mask
&& h->ops == s)
continue;
if (h->ops)
{
h->next = calloc(1,sizeof(struct hash_entry));
h = h->next;
}
h->ops = s;
h->mask = s->mask;
h->opcode = s->opcode;
#ifdef HASH_STAT
h->count = 0;
#endif
}
/* fudge our descriptor for now */
return (SIM_DESC) 1;
}
void
sim_set_profile (n)
int n;
{
(*mn10200_callback->printf_filtered) (mn10200_callback, "sim_set_profile %d\n", n);
}
void
sim_set_profile_size (n)
int n;
{
(*mn10200_callback->printf_filtered) (mn10200_callback, "sim_set_profile_size %d\n", n);
}
int
sim_stop (sd)
SIM_DESC sd;
{
State.exception = SIGINT;
return 1;
}
void
sim_resume (sd, step, siggnal)
SIM_DESC sd;
int step, siggnal;
{
uint32 inst;
if (step)
State.exception = SIGTRAP;
else
State.exception = 0;
State.exited = 0;
do
{
unsigned long insn, extension;
#ifdef NEED_UI_LOOP_HOOK
if (ui_loop_hook != NULL && ui_loop_hook_counter-- < 0)
{
ui_loop_hook_counter = UI_LOOP_POLL_INTERVAL;
ui_loop_hook (0);
}
#endif /* NEED_UI_LOOP_HOOK */
/* Fetch the current instruction, fetch a double word to
avoid redundant fetching for the common cases below. */
inst = load_mem_big (PC, 2);
/* Using a giant case statement may seem like a waste because of the
code/rodata size the table itself will consume. However, using
a giant case statement speeds up the simulator by 10-15% by avoiding
cascading if/else statements or cascading case statements. */
switch ((inst >> 8) & 0xff)
{
/* All the single byte insns except 0x80, which must
be handled specially. */
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x04:
case 0x05:
case 0x06:
case 0x07:
case 0x08:
case 0x09:
case 0x0a:
case 0x0b:
case 0x0c:
case 0x0d:
case 0x0e:
case 0x0f:
case 0x10:
case 0x11:
case 0x12:
case 0x13:
case 0x14:
case 0x15:
case 0x16:
case 0x17:
case 0x18:
case 0x19:
case 0x1a:
case 0x1b:
case 0x1c:
case 0x1d:
case 0x1e:
case 0x1f:
case 0x20:
case 0x21:
case 0x22:
case 0x23:
case 0x24:
case 0x25:
case 0x26:
case 0x27:
case 0x28:
case 0x29:
case 0x2a:
case 0x2b:
case 0x2c:
case 0x2d:
case 0x2e:
case 0x2f:
case 0x30:
case 0x31:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
case 0x3a:
case 0x3b:
case 0x3c:
case 0x3d:
case 0x3e:
case 0x3f:
case 0x90:
case 0x91:
case 0x92:
case 0x93:
case 0x94:
case 0x95:
case 0x96:
case 0x97:
case 0x98:
case 0x99:
case 0x9a:
case 0x9b:
case 0x9c:
case 0x9d:
case 0x9e:
case 0x9f:
case 0xa0:
case 0xa1:
case 0xa2:
case 0xa3:
case 0xa4:
case 0xa5:
case 0xa6:
case 0xa7:
case 0xa8:
case 0xa9:
case 0xaa:
case 0xab:
case 0xac:
case 0xad:
case 0xae:
case 0xaf:
case 0xb0:
case 0xb1:
case 0xb2:
case 0xb3:
case 0xb4:
case 0xb5:
case 0xb6:
case 0xb7:
case 0xb8:
case 0xb9:
case 0xba:
case 0xbb:
case 0xbc:
case 0xbd:
case 0xbe:
case 0xbf:
case 0xeb:
case 0xf6:
case 0xfe:
case 0xff:
insn = (inst >> 8) & 0xff;
extension = 0;
dispatch (insn, extension, 1);
break;
/* Special case as mov dX,dX really means mov imm8,dX. */
case 0x80:
case 0x85:
case 0x8a:
case 0x8f:
/* Fetch the full instruction. */
insn = inst;
extension = 0;
dispatch (insn, extension, 2);
break;
case 0x81:
case 0x82:
case 0x83:
case 0x84:
case 0x86:
case 0x87:
case 0x88:
case 0x89:
case 0x8b:
case 0x8c:
case 0x8d:
case 0x8e:
insn = (inst >> 8) & 0xff;
extension = 0;
dispatch (insn, extension, 1);
break;
/* And the two byte insns. */
case 0x40:
case 0x41:
case 0x42:
case 0x43:
case 0x44:
case 0x45:
case 0x46:
case 0x47:
case 0x48:
case 0x49:
case 0x4a:
case 0x4b:
case 0x4c:
case 0x4d:
case 0x4e:
case 0x4f:
case 0x50:
case 0x51:
case 0x52:
case 0x53:
case 0x54:
case 0x55:
case 0x56:
case 0x57:
case 0x58:
case 0x59:
case 0x5a:
case 0x5b:
case 0x5c:
case 0x5d:
case 0x5e:
case 0x5f:
case 0x60:
case 0x61:
case 0x62:
case 0x63:
case 0x64:
case 0x65:
case 0x66:
case 0x67:
case 0x68:
case 0x69:
case 0x6a:
case 0x6b:
case 0x6c:
case 0x6d:
case 0x6e:
case 0x6f:
case 0x70:
case 0x71:
case 0x72:
case 0x73:
case 0x74:
case 0x75:
case 0x76:
case 0x77:
case 0x78:
case 0x79:
case 0x7a:
case 0x7b:
case 0x7c:
case 0x7d:
case 0x7e:
case 0x7f:
case 0xd0:
case 0xd1:
case 0xd2:
case 0xd3:
case 0xd4:
case 0xd5:
case 0xd6:
case 0xd7:
case 0xd8:
case 0xd9:
case 0xda:
case 0xdb:
case 0xe0:
case 0xe1:
case 0xe2:
case 0xe3:
case 0xe4:
case 0xe5:
case 0xe6:
case 0xe7:
case 0xe8:
case 0xe9:
case 0xea:
case 0xf0:
case 0xf1:
case 0xf2:
case 0xf3:
/* Fetch the full instruction. */
insn = inst;
extension = 0;
dispatch (insn, extension, 2);
break;
/* And the 3 byte insns with a 16bit operand in little
endian format. */
case 0xc0:
case 0xc1:
case 0xc2:
case 0xc3:
case 0xc4:
case 0xc5:
case 0xc6:
case 0xc7:
case 0xc8:
case 0xc9:
case 0xca:
case 0xcb:
case 0xcc:
case 0xcd:
case 0xce:
case 0xcf:
case 0xdc:
case 0xdd:
case 0xde:
case 0xdf:
case 0xec:
case 0xed:
case 0xee:
case 0xef:
case 0xf8:
case 0xf9:
case 0xfa:
case 0xfb:
case 0xfc:
case 0xfd:
insn = load_byte (PC);
insn <<= 16;
insn |= load_half (PC + 1);
extension = 0;
dispatch (insn, extension, 3);
break;
/* 3 byte insns without 16bit operand. */
case 0xf5:
insn = load_mem_big (PC, 3);
extension = 0;
dispatch (insn, extension, 3);
break;
/* 4 byte insns. */
case 0xf7:
insn = inst;
insn <<= 16;
insn |= load_half (PC + 2);
extension = 0;
dispatch (insn, extension, 4);
break;
case 0xf4:
insn = inst;
insn <<= 16;
insn |= load_mem_big (PC + 4, 1) << 8;
insn |= load_mem_big (PC + 3, 1);
extension = load_mem_big (PC + 2, 1);
dispatch (insn, extension, 5);
break;
default:
abort ();
}
}
while (!State.exception);
#ifdef HASH_STAT
{
int i;
for (i = 0; i < MAX_HASH; i++)
{
struct hash_entry *h;
h = &hash_table[i];
printf("hash 0x%x:\n", i);
while (h)
{
printf("h->opcode = 0x%x, count = 0x%x\n", h->opcode, h->count);
h = h->next;
}
printf("\n\n");
}
fflush (stdout);
}
#endif
}
void
sim_close (sd, quitting)
SIM_DESC sd;
int quitting;
{
/* nothing to do */
}
int
sim_trace (sd)
SIM_DESC sd;
{
#ifdef DEBUG
mn10200_debug = DEBUG;
#endif
sim_resume (sd, 0, 0);
return 1;
}
void
sim_info (sd, verbose)
SIM_DESC sd;
int verbose;
{
(*mn10200_callback->printf_filtered) (mn10200_callback, "sim_info\n");
}
SIM_RC
sim_create_inferior (sd, abfd, argv, env)
SIM_DESC sd;
struct bfd *abfd;
char **argv;
char **env;
{
if (abfd != NULL)
PC = bfd_get_start_address (abfd);
else
PC = 0;
return SIM_RC_OK;
}
void
sim_set_callbacks (p)
host_callback *p;
{
mn10200_callback = p;
}
/* All the code for exiting, signals, etc needs to be revamped.
This is enough to get c-torture limping though. */
void
sim_stop_reason (sd, reason, sigrc)
SIM_DESC sd;
enum sim_stop *reason;
int *sigrc;
{
if (State.exited)
*reason = sim_exited;
else
*reason = sim_stopped;
if (State.exception == SIGQUIT)
*sigrc = 0;
else
*sigrc = State.exception;
}
int
sim_fetch_register (sd, rn, memory, length)
SIM_DESC sd;
int rn;
unsigned char *memory;
int length;
{
put_word (memory, State.regs[rn]);
return -1;
}
int
sim_store_register (sd, rn, memory, length)
SIM_DESC sd;
int rn;
unsigned char *memory;
int length;
{
State.regs[rn] = get_word (memory);
return -1;
}
int
sim_read (sd, addr, buffer, size)
SIM_DESC sd;
SIM_ADDR addr;
unsigned char *buffer;
int size;
{
int i;
for (i = 0; i < size; i++)
buffer[i] = load_byte (addr + i);
return size;
}
void
sim_do_command (sd, cmd)
SIM_DESC sd;
char *cmd;
{
(*mn10200_callback->printf_filtered) (mn10200_callback, "\"%s\" is not a valid mn10200 simulator command.\n", cmd);
}
SIM_RC
sim_load (sd, prog, abfd, from_tty)
SIM_DESC sd;
char *prog;
bfd *abfd;
int from_tty;
{
extern bfd *sim_load_file (); /* ??? Don't know where this should live. */
bfd *prog_bfd;
prog_bfd = sim_load_file (sd, myname, mn10200_callback, prog, abfd,
sim_kind == SIM_OPEN_DEBUG,
0, sim_write);
if (prog_bfd == NULL)
return SIM_RC_FAIL;
if (abfd == NULL)
bfd_close (prog_bfd);
return SIM_RC_OK;
}