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_ops0
;
131 static struct target_ops ppcbug_ops1
;
133 static char *ppcbug_inits
[] = {"\r", NULL
};
135 static void init_ppc_cmds(
137 struct monitor_ops
* OPS
,
138 struct target_ops
* targops
)
140 OPS
->flags
= MO_CLR_BREAK_USES_ADDR
| MO_HANDLE_NL
;
141 OPS
->init
= ppcbug_inits
; /* Init strings */
142 OPS
->cont
= "g\r"; /* continue command */
143 OPS
->step
= "t\r"; /* single step */
144 OPS
->stop
= NULL
; /* interrupt command */
145 OPS
->set_break
= "br %x\r"; /* set a breakpoint */
146 OPS
->clr_break
= "nobr %x\r"; /* clear a breakpoint */
147 OPS
->clr_all_break
= "nobr\r"; /* clear all breakpoints */
148 OPS
->fill
= "bf %x:%x %x;b\r"; /* fill (start count val) */
149 OPS
->setmem
.cmdb
= "ms %x %02x\r"; /* setmem.cmdb (addr, value) */
150 OPS
->setmem
.cmdw
= "ms %x %04x\r"; /* setmem.cmdw (addr, value) */
151 OPS
->setmem
.cmdl
= "ms %x %08x\r"; /* setmem.cmdl (addr, value) */
152 OPS
->setmem
.cmdll
= NULL
; /* setmem.cmdll (addr, value) */
153 OPS
->setmem
.resp_delim
= NULL
; /* setreg.resp_delim */
154 OPS
->setmem
.term
= NULL
; /* setreg.term */
155 OPS
->setmem
.term_cmd
= NULL
; /* setreg.term_cmd */
156 OPS
->getmem
.cmdb
= "md %x:%x;b\r"; /* getmem.cmdb (addr, len) */
157 OPS
->getmem
.cmdw
= "md %x:%x;b\r"; /* getmem.cmdw (addr, len) */
158 OPS
->getmem
.cmdl
= "md %x:%x;b\r"; /* getmem.cmdl (addr, len) */
159 OPS
->getmem
.cmdll
= NULL
; /* getmem.cmdll (addr, len) */
160 OPS
->getmem
.resp_delim
= " "; /* getmem.resp_delim */
161 OPS
->getmem
.term
= NULL
; /* getmem.term */
162 OPS
->getmem
.term_cmd
= NULL
; /* getmem.term_cmd */
163 OPS
->setreg
.cmd
= "rs %s %x\r"; /* setreg.cmd (name, value) */
164 OPS
->setreg
.resp_delim
= NULL
; /* setreg.resp_delim */
165 OPS
->setreg
.term
= NULL
; /* setreg.term */
166 OPS
->setreg
.term_cmd
= NULL
; /* setreg.term_cmd */
167 OPS
->getreg
.cmd
= "rs %s\r"; /* getreg.cmd (name) */
168 OPS
->getreg
.resp_delim
= "="; /* getreg.resp_delim */
169 OPS
->getreg
.term
= NULL
; /* getreg.term */
170 OPS
->getreg
.term_cmd
= NULL
; /* getreg.term_cmd */
171 OPS
->register_pattern
= "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)"; /* register_pattern */
172 OPS
->supply_register
= ppcbug_supply_register
; /* supply_register */
173 OPS
->load_routine
= NULL
; /* load_routine (defaults to SRECs) */
174 OPS
->load
= LOAD_CMD
; /* download command */
175 OPS
->loadresp
= NULL
; /* load response */
176 OPS
->prompt
= "PPC1-Bug>"; /* monitor command prompt */
177 OPS
->line_term
= "\r"; /* end-of-line terminator */
178 OPS
->cmd_end
= NULL
; /* optional command terminator */
179 OPS
->target
= targops
; /* target operations */
180 OPS
->stopbits
= SERIAL_1_STOPBITS
; /* number of stop bits */
181 OPS
->regnames
= ppcbug_regnames
; /* registers names */
182 OPS
->magic
= MONITOR_OPS_MAGIC
; /* magic */
186 static struct monitor_ops ppcbug_cmds0
;
187 static struct monitor_ops ppcbug_cmds1
;
190 ppcbug_open0(args
, from_tty
)
194 monitor_open (args
, &ppcbug_cmds0
, from_tty
);
198 ppcbug_open1(args
, from_tty
)
202 monitor_open (args
, &ppcbug_cmds1
, from_tty
);
206 _initialize_ppcbug_rom ()
208 init_ppc_cmds("lo 0\r", &ppcbug_cmds0
, &ppcbug_ops0
) ;
209 init_ppc_cmds("lo 1\r", &ppcbug_cmds1
, &ppcbug_ops1
);
210 init_monitor_ops (&ppcbug_ops0
);
212 ppcbug_ops0
.to_shortname
= "ppcbug";
213 ppcbug_ops0
.to_longname
= "PowerPC PPCBug monitor on port 0";
214 ppcbug_ops0
.to_doc
= "Debug via the PowerPC PPCBug monitor using port 0.\n\
215 Specify the serial device it is connected to (e.g. /dev/ttya).";
216 ppcbug_ops0
.to_open
= ppcbug_open0
;
218 add_target (&ppcbug_ops0
);
220 init_monitor_ops (&ppcbug_ops1
);
222 ppcbug_ops1
.to_shortname
= "ppcbug1";
223 ppcbug_ops1
.to_longname
= "PowerPC PPCBug monitor on port 1";
224 ppcbug_ops1
.to_doc
= "Debug via the PowerPC PPCBug monitor using port 1.\n\
225 Specify the serial device it is connected to (e.g. /dev/ttya).";
226 ppcbug_ops1
.to_open
= ppcbug_open1
;
228 add_target (&ppcbug_ops1
);
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