mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
170 lines
4.8 KiB
C
170 lines
4.8 KiB
C
|
/* Remote debugging interface to dBUG ROM monitor for GDB, the GNU debugger.
|
||
|
Copyright 1996 Free Software Foundation, Inc.
|
||
|
|
||
|
Written by Stan Shebs of Cygnus Support.
|
||
|
|
||
|
This file is part of GDB.
|
||
|
|
||
|
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 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, write to the Free Software
|
||
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
||
|
|
||
|
/* dBUG is a monitor supplied on various Motorola boards, including
|
||
|
m68k, ColdFire, and PowerPC-based designs. The code here assumes
|
||
|
the ColdFire, and (as of 9/25/96) has only been tested with a
|
||
|
ColdFire IDP board. */
|
||
|
|
||
|
#include "defs.h"
|
||
|
#include "gdbcore.h"
|
||
|
#include "target.h"
|
||
|
#include "monitor.h"
|
||
|
#include "serial.h"
|
||
|
|
||
|
static void dbug_open PARAMS ((char *args, int from_tty));
|
||
|
|
||
|
static void
|
||
|
dbug_supply_register (regname, regnamelen, val, vallen)
|
||
|
char *regname;
|
||
|
int regnamelen;
|
||
|
char *val;
|
||
|
int vallen;
|
||
|
{
|
||
|
int regno;
|
||
|
|
||
|
if (regnamelen != 2)
|
||
|
return;
|
||
|
|
||
|
switch (regname[0])
|
||
|
{
|
||
|
case 'S':
|
||
|
if (regname[1] != 'R')
|
||
|
return;
|
||
|
regno = PS_REGNUM;
|
||
|
break;
|
||
|
case 'P':
|
||
|
if (regname[1] != 'C')
|
||
|
return;
|
||
|
regno = PC_REGNUM;
|
||
|
break;
|
||
|
case 'D':
|
||
|
if (regname[1] < '0' || regname[1] > '7')
|
||
|
return;
|
||
|
regno = regname[1] - '0' + D0_REGNUM;
|
||
|
break;
|
||
|
case 'A':
|
||
|
if (regname[1] < '0' || regname[1] > '7')
|
||
|
return;
|
||
|
regno = regname[1] - '0' + A0_REGNUM;
|
||
|
break;
|
||
|
default:
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
monitor_supply_register (regno, val);
|
||
|
}
|
||
|
|
||
|
/* This array of registers needs to match the indexes used by GDB. The
|
||
|
whole reason this exists is because the various ROM monitors use
|
||
|
different names than GDB does, and don't support all the registers
|
||
|
either. So, typing "info reg sp" becomes an "A7". */
|
||
|
|
||
|
static char *dbug_regnames[NUM_REGS] =
|
||
|
{
|
||
|
"D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
|
||
|
"A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7",
|
||
|
"SR", "PC"
|
||
|
/* no float registers */
|
||
|
};
|
||
|
|
||
|
static struct target_ops dbug_ops;
|
||
|
|
||
|
static char *dbug_inits[] = {"\r", NULL};
|
||
|
|
||
|
static struct monitor_ops dbug_cmds =
|
||
|
{
|
||
|
MO_CLR_BREAK_USES_ADDR | MO_GETMEM_NEEDS_RANGE | MO_FILL_USES_ADDR,
|
||
|
dbug_inits, /* Init strings */
|
||
|
"go\r", /* continue command */
|
||
|
"step\r", /* single step */
|
||
|
NULL, /* interrupt command */
|
||
|
"br %x\r", /* set a breakpoint */
|
||
|
"br -c %x\r", /* clear a breakpoint */
|
||
|
"br -c\r", /* clear all breakpoints */
|
||
|
"bf.b %x %x %x", /* fill (start end val) */
|
||
|
{
|
||
|
"mm.b %x %x\r", /* setmem.cmdb (addr, value) */
|
||
|
"mm.w %x %x\r", /* setmem.cmdw (addr, value) */
|
||
|
"mm.l %x %x\r", /* setmem.cmdl (addr, value) */
|
||
|
NULL, /* setmem.cmdll (addr, value) */
|
||
|
NULL, /* setmem.resp_delim */
|
||
|
NULL, /* setmem.term */
|
||
|
NULL /* setmem.term_cmd */
|
||
|
},
|
||
|
{
|
||
|
"md.b %x %x\r", /* getmem.cmdb (addr, addr2) */
|
||
|
"md.w %x %x\r", /* getmem.cmdw (addr, addr2) */
|
||
|
"md.l %x %x\r", /* getmem.cmdl (addr, addr2) */
|
||
|
NULL, /* getmem.cmdll (addr, addr2) */
|
||
|
":", /* getmem.resp_delim */
|
||
|
NULL, /* getmem.term */
|
||
|
NULL /* getmem.term_cmd */
|
||
|
},
|
||
|
{
|
||
|
"rm %s %x\r", /* setreg.cmd (name, value) */
|
||
|
NULL, /* setreg.resp_delim */
|
||
|
NULL, /* setreg.term */
|
||
|
NULL /* setreg.term_cmd */
|
||
|
},
|
||
|
{
|
||
|
"rd %s\r", /* getreg.cmd (name) */
|
||
|
":", /* getreg.resp_delim */
|
||
|
NULL, /* getreg.term */
|
||
|
NULL /* getreg.term_cmd */
|
||
|
},
|
||
|
"rd\r", /* dump_registers */
|
||
|
"\\(\\w+\\) +:\\([0-9a-fA-F]+\\b\\)", /* register_pattern */
|
||
|
dbug_supply_register, /* supply_register */
|
||
|
NULL, /* load_routine (defaults to SRECs) */
|
||
|
"dl\r", /* download command */
|
||
|
"\n", /* load response */
|
||
|
"dBUG>", /* monitor command prompt */
|
||
|
"\r", /* end-of-line terminator */
|
||
|
NULL, /* optional command terminator */
|
||
|
&dbug_ops, /* target operations */
|
||
|
SERIAL_1_STOPBITS, /* number of stop bits */
|
||
|
dbug_regnames, /* registers names */
|
||
|
MONITOR_OPS_MAGIC /* magic */
|
||
|
};
|
||
|
|
||
|
static void
|
||
|
dbug_open(args, from_tty)
|
||
|
char *args;
|
||
|
int from_tty;
|
||
|
{
|
||
|
monitor_open (args, &dbug_cmds, from_tty);
|
||
|
}
|
||
|
|
||
|
void
|
||
|
_initialize_dbug_rom ()
|
||
|
{
|
||
|
init_monitor_ops (&dbug_ops);
|
||
|
|
||
|
dbug_ops.to_shortname = "dbug";
|
||
|
dbug_ops.to_longname = "dBUG monitor";
|
||
|
dbug_ops.to_doc = "Debug via the dBUG monitor.\n\
|
||
|
Specify the serial device it is connected to (e.g. /dev/ttya).";
|
||
|
dbug_ops.to_open = dbug_open;
|
||
|
|
||
|
add_target (&dbug_ops);
|
||
|
}
|