mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-03 04:12:10 +08:00
165 lines
5.9 KiB
C
165 lines
5.9 KiB
C
/* Remote debugging interface to dBUG ROM monitor for GDB, the GNU debugger.
|
|
Copyright 1996, 1999 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 struct monitor_ops dbug_cmds ;
|
|
|
|
static char *dbug_inits[] = {"\r", NULL};
|
|
|
|
|
|
static void
|
|
init_dbug_cmds(void)
|
|
{
|
|
dbug_cmds.flags = MO_CLR_BREAK_USES_ADDR | MO_GETMEM_NEEDS_RANGE | MO_FILL_USES_ADDR;
|
|
dbug_cmds.init = dbug_inits; /* Init strings */
|
|
dbug_cmds.cont = "go\r"; /* continue command */
|
|
dbug_cmds.step = "trace\r"; /* single step */
|
|
dbug_cmds.stop = NULL; /* interrupt command */
|
|
dbug_cmds.set_break = "br %x\r"; /* set a breakpoint */
|
|
dbug_cmds.clr_break = "br -r %x\r"; /* clear a breakpoint */
|
|
dbug_cmds.clr_all_break = "br -r\r"; /* clear all breakpoints */
|
|
dbug_cmds.fill = "bf.b %x %x %x\r"; /* fill (start end val) */
|
|
dbug_cmds.setmem.cmdb = "mm.b %x %x\r"; /* setmem.cmdb (addr, value) */
|
|
dbug_cmds.setmem.cmdw = "mm.w %x %x\r"; /* setmem.cmdw (addr, value) */
|
|
dbug_cmds.setmem.cmdl = "mm.l %x %x\r"; /* setmem.cmdl (addr, value) */
|
|
dbug_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */
|
|
dbug_cmds.setmem.resp_delim = NULL; /* setmem.resp_delim */
|
|
dbug_cmds.setmem.term = NULL; /* setmem.term */
|
|
dbug_cmds.setmem.term_cmd = NULL; /* setmem.term_cmd */
|
|
dbug_cmds.getmem.cmdb = "md.b %x %x\r"; /* getmem.cmdb (addr, addr2) */
|
|
dbug_cmds.getmem.cmdw = "md.w %x %x\r"; /* getmem.cmdw (addr, addr2) */
|
|
dbug_cmds.getmem.cmdl = "md.l %x %x\r"; /* getmem.cmdl (addr, addr2) */
|
|
dbug_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, addr2) */
|
|
dbug_cmds.getmem.resp_delim = ":"; /* getmem.resp_delim */
|
|
dbug_cmds.getmem.term = NULL; /* getmem.term */
|
|
dbug_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */
|
|
dbug_cmds.setreg.cmd = "rm %s %x\r"; /* setreg.cmd (name, value) */
|
|
dbug_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */
|
|
dbug_cmds.setreg.term = NULL; /* setreg.term */
|
|
dbug_cmds.setreg.term_cmd = NULL; /* setreg.term_cmd */
|
|
dbug_cmds.getreg.cmd = "rd %s\r"; /* getreg.cmd (name) */
|
|
dbug_cmds.getreg.resp_delim = ":"; /* getreg.resp_delim */
|
|
dbug_cmds.getreg.term = NULL; /* getreg.term */
|
|
dbug_cmds.getreg.term_cmd = NULL; /* getreg.term_cmd */
|
|
dbug_cmds.dump_registers = "rd\r"; /* dump_registers */
|
|
dbug_cmds.register_pattern = "\\(\\w+\\) +:\\([0-9a-fA-F]+\\b\\)"; /* register_pattern */
|
|
dbug_cmds.supply_register = dbug_supply_register; /* supply_register */
|
|
dbug_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */
|
|
dbug_cmds.load = "dl\r"; /* download command */
|
|
dbug_cmds.loadresp = "\n"; /* load response */
|
|
dbug_cmds.prompt = "dBUG>"; /* monitor command prompt */
|
|
dbug_cmds.line_term = "\r"; /* end-of-line terminator */
|
|
dbug_cmds.cmd_end = NULL; /* optional command terminator */
|
|
dbug_cmds.target = &dbug_ops ; /* target operations */
|
|
dbug_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */
|
|
dbug_cmds.regnames = dbug_regnames; /* registers names */
|
|
dbug_cmds.magic = MONITOR_OPS_MAGIC ; /* magic */
|
|
} /* init_debug_ops */
|
|
|
|
static void
|
|
dbug_open(args, from_tty)
|
|
char *args;
|
|
int from_tty;
|
|
{
|
|
monitor_open (args, &dbug_cmds, from_tty);
|
|
}
|
|
|
|
void
|
|
_initialize_dbug_rom ()
|
|
{
|
|
init_dbug_cmds() ;
|
|
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);
|
|
}
|