1 /* Remote debugging interface to dBUG ROM monitor for GDB, the GNU debugger.
2 Copyright 1996, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
4 Written by Stan Shebs of Cygnus Support.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
23 /* dBUG is a monitor supplied on various Motorola boards, including
24 m68k, ColdFire, and PowerPC-based designs. The code here assumes
25 the ColdFire, and (as of 9/25/96) has only been tested with a
26 ColdFire IDP board. */
35 static void dbug_open (char *args
, int from_tty
);
38 dbug_supply_register (char *regname
, int regnamelen
, char *val
, int vallen
)
48 if (regname
[1] != 'R')
53 if (regname
[1] != 'C')
58 if (regname
[1] < '0' || regname
[1] > '7')
60 regno
= regname
[1] - '0' + D0_REGNUM
;
63 if (regname
[1] < '0' || regname
[1] > '7')
65 regno
= regname
[1] - '0' + A0_REGNUM
;
71 monitor_supply_register (regno
, val
);
74 /* This array of registers needs to match the indexes used by GDB. The
75 whole reason this exists is because the various ROM monitors use
76 different names than GDB does, and don't support all the registers
77 either. So, typing "info reg sp" becomes an "A7". */
80 dbug_regname (int index
)
82 static char *regnames
[] =
84 "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
85 "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7",
87 /* no float registers */
90 if ((index
>= (sizeof (regnames
) / sizeof (regnames
[0])))
91 || (index
< 0) || (index
>= NUM_REGS
))
94 return regnames
[index
];
98 static struct target_ops dbug_ops
;
99 static struct monitor_ops dbug_cmds
;
101 static char *dbug_inits
[] =
106 init_dbug_cmds (void)
108 dbug_cmds
.flags
= MO_CLR_BREAK_USES_ADDR
| MO_GETMEM_NEEDS_RANGE
| MO_FILL_USES_ADDR
;
109 dbug_cmds
.init
= dbug_inits
; /* Init strings */
110 dbug_cmds
.cont
= "go\r"; /* continue command */
111 dbug_cmds
.step
= "trace\r"; /* single step */
112 dbug_cmds
.stop
= NULL
; /* interrupt command */
113 dbug_cmds
.set_break
= "br %x\r"; /* set a breakpoint */
114 dbug_cmds
.clr_break
= "br -r %x\r"; /* clear a breakpoint */
115 dbug_cmds
.clr_all_break
= "br -r\r"; /* clear all breakpoints */
116 dbug_cmds
.fill
= "bf.b %x %x %x\r"; /* fill (start end val) */
117 dbug_cmds
.setmem
.cmdb
= "mm.b %x %x\r"; /* setmem.cmdb (addr, value) */
118 dbug_cmds
.setmem
.cmdw
= "mm.w %x %x\r"; /* setmem.cmdw (addr, value) */
119 dbug_cmds
.setmem
.cmdl
= "mm.l %x %x\r"; /* setmem.cmdl (addr, value) */
120 dbug_cmds
.setmem
.cmdll
= NULL
; /* setmem.cmdll (addr, value) */
121 dbug_cmds
.setmem
.resp_delim
= NULL
; /* setmem.resp_delim */
122 dbug_cmds
.setmem
.term
= NULL
; /* setmem.term */
123 dbug_cmds
.setmem
.term_cmd
= NULL
; /* setmem.term_cmd */
124 dbug_cmds
.getmem
.cmdb
= "md.b %x %x\r"; /* getmem.cmdb (addr, addr2) */
125 dbug_cmds
.getmem
.cmdw
= "md.w %x %x\r"; /* getmem.cmdw (addr, addr2) */
126 dbug_cmds
.getmem
.cmdl
= "md.l %x %x\r"; /* getmem.cmdl (addr, addr2) */
127 dbug_cmds
.getmem
.cmdll
= NULL
; /* getmem.cmdll (addr, addr2) */
128 dbug_cmds
.getmem
.resp_delim
= ":"; /* getmem.resp_delim */
129 dbug_cmds
.getmem
.term
= NULL
; /* getmem.term */
130 dbug_cmds
.getmem
.term_cmd
= NULL
; /* getmem.term_cmd */
131 dbug_cmds
.setreg
.cmd
= "rm %s %x\r"; /* setreg.cmd (name, value) */
132 dbug_cmds
.setreg
.resp_delim
= NULL
; /* setreg.resp_delim */
133 dbug_cmds
.setreg
.term
= NULL
; /* setreg.term */
134 dbug_cmds
.setreg
.term_cmd
= NULL
; /* setreg.term_cmd */
135 dbug_cmds
.getreg
.cmd
= "rd %s\r"; /* getreg.cmd (name) */
136 dbug_cmds
.getreg
.resp_delim
= ":"; /* getreg.resp_delim */
137 dbug_cmds
.getreg
.term
= NULL
; /* getreg.term */
138 dbug_cmds
.getreg
.term_cmd
= NULL
; /* getreg.term_cmd */
139 dbug_cmds
.dump_registers
= "rd\r"; /* dump_registers */
140 dbug_cmds
.register_pattern
= "\\(\\w+\\) +:\\([0-9a-fA-F]+\\b\\)"; /* register_pattern */
141 dbug_cmds
.supply_register
= dbug_supply_register
; /* supply_register */
142 dbug_cmds
.load_routine
= NULL
; /* load_routine (defaults to SRECs) */
143 dbug_cmds
.load
= "dl\r"; /* download command */
144 dbug_cmds
.loadresp
= "\n"; /* load response */
145 dbug_cmds
.prompt
= "dBUG>"; /* monitor command prompt */
146 dbug_cmds
.line_term
= "\r"; /* end-of-line terminator */
147 dbug_cmds
.cmd_end
= NULL
; /* optional command terminator */
148 dbug_cmds
.target
= &dbug_ops
; /* target operations */
149 dbug_cmds
.stopbits
= SERIAL_1_STOPBITS
; /* number of stop bits */
150 dbug_cmds
.regnames
= NULL
; /* registers names */
151 dbug_cmds
.regname
= dbug_regname
;
152 dbug_cmds
.magic
= MONITOR_OPS_MAGIC
; /* magic */
153 } /* init_debug_ops */
156 dbug_open (char *args
, int from_tty
)
158 monitor_open (args
, &dbug_cmds
, from_tty
);
162 _initialize_dbug_rom (void)
165 init_monitor_ops (&dbug_ops
);
167 dbug_ops
.to_shortname
= "dbug";
168 dbug_ops
.to_longname
= "dBUG monitor";
169 dbug_ops
.to_doc
= "Debug via the dBUG monitor.\n\
170 Specify the serial device it is connected to (e.g. /dev/ttya).";
171 dbug_ops
.to_open
= dbug_open
;
173 add_target (&dbug_ops
);
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