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,
22 Boston, MA 02111-1307, USA. */
30 static void ppcbug_open PARAMS ((char *args, int from_tty));
33 ppcbug_supply_register (regname, regnamelen, val, vallen)
39 int regno = 0, base = 0;
41 if (regnamelen < 2 || regnamelen > 4)
47 if (regname[1] < '0' || regname[1] > '9')
50 regno = regname[1] - '0';
51 else if (regnamelen == 3 && regname[2] >= '0' && regname[2] <= '9')
52 regno = (regname[1] - '0') * 10 + (regname[2] - '0');
57 if (regname[1] != 'R' || regname[2] < '0' || regname[2] > '9')
60 regno = 32 + regname[2] - '0';
61 else if (regnamelen == 4 && regname[3] >= '0' && regname[3] <= '9')
62 regno = 32 + (regname[2] - '0') * 10 + (regname[3] - '0');
67 if (regnamelen != 2 || regname[1] != 'P')
72 if (regnamelen != 3 || regname[1] != 'S' || regname[2] != 'R')
77 if (regnamelen != 2 || regname[1] != 'R')
82 if (regnamelen != 4 || regname[1] != 'P' || regname[2] != 'R')
84 else if (regname[3] == '8')
86 else if (regname[3] == '9')
88 else if (regname[3] == '1')
90 else if (regname[3] == '0')
99 monitor_supply_register (regno, val);
103 * This array of registers needs to match the indexes used by GDB. The
104 * whole reason this exists is because the various ROM monitors use
105 * different names than GDB does, and don't support all the
106 * registers either. So, typing "info reg sp" becomes an "A7".
109 static char *ppcbug_regnames[NUM_REGS] =
111 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
112 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
113 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
114 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
116 "fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7",
117 "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
118 "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23",
119 "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31",
121 /* pc ps cnd lr cnt xer mq */
122 "ip", "msr", "cr", "spr8", "spr9", "spr1", "spr0"
126 * Define the monitor command strings. Since these are passed directly
127 * through to a printf style function, we need can include formatting
128 * strings. We also need a CR or LF on the end.
131 static struct target_ops ppcbug_ops0;
132 static struct target_ops ppcbug_ops1;
134 static char *ppcbug_inits[] =
138 init_ppc_cmds (char *LOAD_CMD,
139 struct monitor_ops *OPS,
140 struct target_ops *targops)
142 OPS->flags = MO_CLR_BREAK_USES_ADDR | MO_HANDLE_NL;
143 OPS->init = ppcbug_inits; /* Init strings */
144 OPS->cont = "g\r"; /* continue command */
145 OPS->step = "t\r"; /* single step */
146 OPS->stop = NULL; /* interrupt command */
147 OPS->set_break = "br %x\r"; /* set a breakpoint */
148 OPS->clr_break = "nobr %x\r"; /* clear a breakpoint */
149 OPS->clr_all_break = "nobr\r"; /* clear all breakpoints */
150 OPS->fill = "bf %x:%x %x;b\r"; /* fill (start count val) */
151 OPS->setmem.cmdb = "ms %x %02x\r"; /* setmem.cmdb (addr, value) */
152 OPS->setmem.cmdw = "ms %x %04x\r"; /* setmem.cmdw (addr, value) */
153 OPS->setmem.cmdl = "ms %x %08x\r"; /* setmem.cmdl (addr, value) */
154 OPS->setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */
155 OPS->setmem.resp_delim = NULL; /* setreg.resp_delim */
156 OPS->setmem.term = NULL; /* setreg.term */
157 OPS->setmem.term_cmd = NULL; /* setreg.term_cmd */
158 OPS->getmem.cmdb = "md %x:%x;b\r"; /* getmem.cmdb (addr, len) */
159 OPS->getmem.cmdw = "md %x:%x;b\r"; /* getmem.cmdw (addr, len) */
160 OPS->getmem.cmdl = "md %x:%x;b\r"; /* getmem.cmdl (addr, len) */
161 OPS->getmem.cmdll = NULL; /* getmem.cmdll (addr, len) */
162 OPS->getmem.resp_delim = " "; /* getmem.resp_delim */
163 OPS->getmem.term = NULL; /* getmem.term */
164 OPS->getmem.term_cmd = NULL; /* getmem.term_cmd */
165 OPS->setreg.cmd = "rs %s %x\r"; /* setreg.cmd (name, value) */
166 OPS->setreg.resp_delim = NULL; /* setreg.resp_delim */
167 OPS->setreg.term = NULL; /* setreg.term */
168 OPS->setreg.term_cmd = NULL; /* setreg.term_cmd */
169 OPS->getreg.cmd = "rs %s\r"; /* getreg.cmd (name) */
170 OPS->getreg.resp_delim = "="; /* getreg.resp_delim */
171 OPS->getreg.term = NULL; /* getreg.term */
172 OPS->getreg.term_cmd = NULL; /* getreg.term_cmd */
173 OPS->register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)"; /* register_pattern */
174 OPS->supply_register = ppcbug_supply_register; /* supply_register */
175 OPS->dump_registers = "rd\r"; /* dump all registers */
176 OPS->load_routine = NULL; /* load_routine (defaults to SRECs) */
177 OPS->load = LOAD_CMD; /* download command */
178 OPS->loadresp = NULL; /* load response */
179 OPS->prompt = "PPC1-Bug>"; /* monitor command prompt */
180 OPS->line_term = "\r"; /* end-of-line terminator */
181 OPS->cmd_end = NULL; /* optional command terminator */
182 OPS->target = targops; /* target operations */
183 OPS->stopbits = SERIAL_1_STOPBITS; /* number of stop bits */
184 OPS->regnames = ppcbug_regnames; /* registers names */
185 OPS->magic = MONITOR_OPS_MAGIC; /* magic */
189 static struct monitor_ops ppcbug_cmds0;
190 static struct monitor_ops ppcbug_cmds1;
193 ppcbug_open0 (args, from_tty)
197 monitor_open (args, &ppcbug_cmds0, from_tty);
201 ppcbug_open1 (args, from_tty)
205 monitor_open (args, &ppcbug_cmds1, from_tty);
209 _initialize_ppcbug_rom ()
211 init_ppc_cmds ("lo 0\r", &ppcbug_cmds0, &ppcbug_ops0);
212 init_ppc_cmds ("lo 1\r", &ppcbug_cmds1, &ppcbug_ops1);
213 init_monitor_ops (&ppcbug_ops0);
215 ppcbug_ops0.to_shortname = "ppcbug";
216 ppcbug_ops0.to_longname = "PowerPC PPCBug monitor on port 0";
217 ppcbug_ops0.to_doc = "Debug via the PowerPC PPCBug monitor using port 0.\n\
218 Specify the serial device it is connected to (e.g. /dev/ttya).";
219 ppcbug_ops0.to_open = ppcbug_open0;
221 add_target (&ppcbug_ops0);
223 init_monitor_ops (&ppcbug_ops1);
225 ppcbug_ops1.to_shortname = "ppcbug1";
226 ppcbug_ops1.to_longname = "PowerPC PPCBug monitor on port 1";
227 ppcbug_ops1.to_doc = "Debug via the PowerPC PPCBug monitor using port 1.\n\
228 Specify the serial device it is connected to (e.g. /dev/ttya).";
229 ppcbug_ops1.to_open = ppcbug_open1;
231 add_target (&ppcbug_ops1);