1 /* Remote debugging interface for PPCbug (PowerPC) Rom monitor
2 for GDB, the GNU debugger.
3 Copyright 1995 Free Software Foundation, Inc.
5 Written by Stu Grossman of Cygnus Support
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
29 static void ppcbug_open
PARAMS ((char *args
, int from_tty
));
32 ppcbug_supply_register (regname
, regnamelen
, val
, vallen
)
38 int regno
= 0, base
= 0;
40 if (regnamelen
< 2 || regnamelen
> 4)
46 if (regname
[1] < '0' || regname
[1] > '9')
49 regno
= regname
[1] - '0';
50 else if (regnamelen
== 3 && regname
[2] >= '0' && regname
[2] <= '9')
51 regno
= (regname
[1] - '0') * 10 + (regname
[2] - '0');
56 if (regname
[1] != 'R' || regname
[2] < '0' || regname
[2] > '9')
59 regno
= 32 + regname
[2] - '0';
60 else if (regnamelen
== 4 && regname
[3] >= '0' && regname
[3] <= '9')
61 regno
= 32 + (regname
[2] - '0') * 10 + (regname
[3] - '0');
66 if (regnamelen
!= 2 || regname
[1] != 'P')
71 if (regnamelen
!= 3 || regname
[1] != 'S' || regname
[2] != 'R')
76 if (regnamelen
!= 2 || regname
[1] != 'R')
81 if (regnamelen
!= 4 || regname
[1] != 'P' || regname
[2] != 'R')
83 else if (regname
[3] == '8')
85 else if (regname
[3] == '9')
87 else if (regname
[3] == '1')
89 else if (regname
[3] == '0')
98 monitor_supply_register (regno
, val
);
102 * This array of registers needs to match the indexes used by GDB. The
103 * whole reason this exists is because the various ROM monitors use
104 * different names than GDB does, and don't support all the
105 * registers either. So, typing "info reg sp" becomes an "A7".
108 static char *ppcbug_regnames
[NUM_REGS
] =
110 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
111 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
112 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
113 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
115 "fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7",
116 "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
117 "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23",
118 "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31",
120 /* pc ps cnd lr cnt xer mq */
121 "ip", "msr", "cr", "spr8", "spr9", "spr1", "spr0"
125 * Define the monitor command strings. Since these are passed directly
126 * through to a printf style function, we need can include formatting
127 * strings. We also need a CR or LF on the end.
130 static struct target_ops ppcbug_ops
;
132 static char *ppcbug_inits
[] = {"\r", NULL
};
134 static struct monitor_ops ppcbug_cmds
=
136 /* use read single because PPCBUG insists on emiting
137 the word in character notation after the hex. */
138 MO_CLR_BREAK_USES_ADDR
| MO_GETMEM_READ_SINGLE
,
139 ppcbug_inits
, /* Init strings */
140 "g\r", /* continue command */
141 "t\r", /* single step */
142 NULL
, /* interrupt command */
143 "br %x\r", /* set a breakpoint */
144 "nobr %x\r", /* clear a breakpoint */
145 "nobr\r", /* clear all breakpoints */
146 "bf %x:%x %x;b\r", /* fill (start count val) */
148 "ms %x %02x\r", /* setmem.cmdb (addr, value) */
149 "ms %x %04x\r", /* setmem.cmdw (addr, value) */
150 "ms %x %08x\r", /* setmem.cmdl (addr, value) */
151 NULL
, /* setmem.cmdll (addr, value) */
152 NULL
, /* setreg.resp_delim */
153 NULL
, /* setreg.term */
154 NULL
, /* setreg.term_cmd */
157 "md %x;b\r", /* getmem.cmdb addr */
158 "md %x;h\r", /* getmem.cmdw addr */
159 "md %x;w\r", /* getmem.cmdl addr */
160 "md %x:2;w\r", /* getmem.cmdll addr */
161 " ", /* getmem.resp_delim */
162 NULL
, /* getmem.term */
163 NULL
, /* getmem.term_cmd */
166 "rs %s %x\r", /* setreg.cmd (name, value) */
167 NULL
, /* setreg.resp_delim */
168 NULL
, /* setreg.term */
169 NULL
/* setreg.term_cmd */
172 "rs %s\r", /* getreg.cmd (name) */
173 "=", /* getreg.resp_delim */
174 NULL
, /* getreg.term */
175 NULL
/* getreg.term_cmd */
177 "rd\r", /* dump_registers */
178 "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)", /* register_pattern */
179 ppcbug_supply_register
, /* supply_register */
180 NULL
, /* load_routine (defaults to SRECs) */
181 "lo 0\r", /* download command */
182 NULL
, /* load response */
183 "PPC1-Bug>", /* monitor command prompt */
184 "\r", /* end-of-line terminator */
185 NULL
, /* optional command terminator */
186 &ppcbug_ops
, /* target operations */
187 SERIAL_1_STOPBITS
, /* number of stop bits */
188 ppcbug_regnames
, /* registers names */
189 MONITOR_OPS_MAGIC
/* magic */
193 ppcbug_open(args
, from_tty
)
197 monitor_open (args
, &ppcbug_cmds
, from_tty
);
201 _initialize_ppcbug_rom ()
203 init_monitor_ops (&ppcbug_ops
);
205 ppcbug_ops
.to_shortname
= "ppcbug";
206 ppcbug_ops
.to_longname
= "PowerPC PPCBug monitor";
207 ppcbug_ops
.to_doc
= "Debug via the PowerPC PPCBug monitor.\n\
208 Specify the serial device it is connected to (e.g. /dev/ttya).";
209 ppcbug_ops
.to_open
= ppcbug_open
;
211 add_target (&ppcbug_ops
);