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 #define PPC_CMDS(LOAD_CMD, OPS) \
137 MO_CLR_BREAK_USES_ADDR | MO_HANDLE_NL, \
138 ppcbug_inits, /* Init strings */ \
139 "g\r", /* continue command */ \
140 "t\r", /* single step */ \
141 NULL, /* interrupt command */ \
142 "br %x\r", /* set a breakpoint */ \
143 "nobr %x\r", /* clear a breakpoint */ \
144 "nobr\r", /* clear all breakpoints */ \
145 "bf %x:%x %x;b\r", /* fill (start count val) */ \
147 "ms %x %02x\r", /* setmem.cmdb (addr, value) */ \
148 "ms %x %04x\r", /* setmem.cmdw (addr, value) */ \
149 "ms %x %08x\r", /* setmem.cmdl (addr, value) */ \
150 NULL, /* setmem.cmdll (addr, value) */ \
151 NULL, /* setreg.resp_delim */ \
152 NULL, /* setreg.term */ \
153 NULL, /* setreg.term_cmd */ \
156 "md %x:%x;b\r", /* getmem.cmdb (addr, len) */ \
157 "md %x:%x;b\r", /* getmem.cmdw (addr, len) */ \
158 "md %x:%x;b\r", /* getmem.cmdl (addr, len) */ \
159 NULL, /* getmem.cmdll (addr, len) */ \
160 " ", /* getmem.resp_delim */ \
161 NULL, /* getmem.term */ \
162 NULL, /* getmem.term_cmd */ \
165 "rs %s %x\r", /* setreg.cmd (name, value) */ \
166 NULL, /* setreg.resp_delim */ \
167 NULL, /* setreg.term */ \
168 NULL /* setreg.term_cmd */ \
171 "rs %s\r", /* getreg.cmd (name) */ \
172 "=", /* getreg.resp_delim */ \
173 NULL, /* getreg.term */ \
174 NULL /* getreg.term_cmd */ \
176 "rd\r", /* dump_registers */ \
177 "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)", /* register_pattern */ \
178 ppcbug_supply_register, /* supply_register */ \
179 NULL, /* load_routine (defaults to SRECs) */ \
180 LOAD_CMD, /* download command */ \
181 NULL, /* load response */ \
182 "PPC1-Bug>", /* monitor command prompt */ \
183 "\r", /* end-of-line terminator */ \
184 NULL, /* optional command terminator */ \
185 &OPS, /* target operations */ \
186 SERIAL_1_STOPBITS, /* number of stop bits */ \
187 ppcbug_regnames, /* registers names */ \
188 MONITOR_OPS_MAGIC /* magic */ \
192 static struct monitor_ops ppcbug_cmds0
= PPC_CMDS("lo 0\r", ppcbug_ops0
);
193 static struct monitor_ops ppcbug_cmds1
= PPC_CMDS("lo 1\r", ppcbug_ops1
);
196 ppcbug_open0(args
, from_tty
)
200 monitor_open (args
, &ppcbug_cmds0
, from_tty
);
204 ppcbug_open1(args
, from_tty
)
208 monitor_open (args
, &ppcbug_cmds1
, from_tty
);
212 _initialize_ppcbug_rom ()
214 init_monitor_ops (&ppcbug_ops0
);
216 ppcbug_ops0
.to_shortname
= "ppcbug";
217 ppcbug_ops0
.to_longname
= "PowerPC PPCBug monitor on port 0";
218 ppcbug_ops0
.to_doc
= "Debug via the PowerPC PPCBug monitor using port 0.\n\
219 Specify the serial device it is connected to (e.g. /dev/ttya).";
220 ppcbug_ops0
.to_open
= ppcbug_open0
;
222 add_target (&ppcbug_ops0
);
224 init_monitor_ops (&ppcbug_ops1
);
226 ppcbug_ops1
.to_shortname
= "ppcbug1";
227 ppcbug_ops1
.to_longname
= "PowerPC PPCBug monitor on port 1";
228 ppcbug_ops1
.to_doc
= "Debug via the PowerPC PPCBug monitor using port 1.\n\
229 Specify the serial device it is connected to (e.g. /dev/ttya).";
230 ppcbug_ops1
.to_open
= ppcbug_open1
;
232 add_target (&ppcbug_ops1
);
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