OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [gdb/] [ppcbug-rom.c] - Blame information for rev 157

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 24 jeremybenn
/* Remote debugging interface for PPCbug (PowerPC) Rom monitor
2
   for GDB, the GNU debugger.
3
   Copyright (C) 1995, 1998, 1999, 2000, 2001, 2007, 2008
4
   Free Software Foundation, Inc.
5
 
6
   Written by Stu Grossman of Cygnus Support
7
 
8
   This file is part of GDB.
9
 
10
   This program is free software; you can redistribute it and/or modify
11
   it under the terms of the GNU General Public License as published by
12
   the Free Software Foundation; either version 3 of the License, or
13
   (at your option) any later version.
14
 
15
   This program is distributed in the hope that it will be useful,
16
   but WITHOUT ANY WARRANTY; without even the implied warranty of
17
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18
   GNU General Public License for more details.
19
 
20
   You should have received a copy of the GNU General Public License
21
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
22
 
23
#include "defs.h"
24
#include "gdbcore.h"
25
#include "target.h"
26
#include "monitor.h"
27
#include "serial.h"
28
#include "regcache.h"
29
 
30
static void
31
ppcbug_supply_register (struct regcache *regcache, char *regname,
32
                        int regnamelen, char *val, int vallen)
33
{
34
  int regno = 0;
35
 
36
  if (regnamelen < 2 || regnamelen > 4)
37
    return;
38
 
39
  switch (regname[0])
40
    {
41
    case 'R':
42
      if (regname[1] < '0' || regname[1] > '9')
43
        return;
44
      if (regnamelen == 2)
45
        regno = regname[1] - '0';
46
      else if (regnamelen == 3 && regname[2] >= '0' && regname[2] <= '9')
47
        regno = (regname[1] - '0') * 10 + (regname[2] - '0');
48
      else
49
        return;
50
      break;
51
    case 'F':
52
      if (regname[1] != 'R' || regname[2] < '0' || regname[2] > '9')
53
        return;
54
      if (regnamelen == 3)
55
        regno = 32 + regname[2] - '0';
56
      else if (regnamelen == 4 && regname[3] >= '0' && regname[3] <= '9')
57
        regno = 32 + (regname[2] - '0') * 10 + (regname[3] - '0');
58
      else
59
        return;
60
      break;
61
    case 'I':
62
      if (regnamelen != 2 || regname[1] != 'P')
63
        return;
64
      regno = 64;
65
      break;
66
    case 'M':
67
      if (regnamelen != 3 || regname[1] != 'S' || regname[2] != 'R')
68
        return;
69
      regno = 65;
70
      break;
71
    case 'C':
72
      if (regnamelen != 2 || regname[1] != 'R')
73
        return;
74
      regno = 66;
75
      break;
76
    case 'S':
77
      if (regnamelen != 4 || regname[1] != 'P' || regname[2] != 'R')
78
        return;
79
      else if (regname[3] == '8')
80
        regno = 67;
81
      else if (regname[3] == '9')
82
        regno = 68;
83
      else if (regname[3] == '1')
84
        regno = 69;
85
      else if (regname[3] == '0')
86
        regno = 70;
87
      else
88
        return;
89
      break;
90
    default:
91
      return;
92
    }
93
 
94
  monitor_supply_register (regcache, regno, val);
95
}
96
 
97
/*
98
 * This array of registers needs to match the indexes used by GDB. The
99
 * whole reason this exists is because the various ROM monitors use
100
 * different names than GDB does, and don't support all the
101
 * registers either. So, typing "info reg sp" becomes an "A7".
102
 */
103
 
104
static char *ppcbug_regnames[] =
105
{
106
  "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
107
  "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
108
  "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
109
  "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
110
 
111
  "fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7",
112
  "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
113
  "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23",
114
  "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31",
115
 
116
/* pc      ps      cnd     lr      cnt     xer     mq */
117
  "ip", "msr", "cr", "spr8", "spr9", "spr1", "spr0"
118
};
119
 
120
/*
121
 * Define the monitor command strings. Since these are passed directly
122
 * through to a printf style function, we need can include formatting
123
 * strings. We also need a CR or LF on the end.
124
 */
125
 
126
static struct target_ops ppcbug_ops0;
127
static struct target_ops ppcbug_ops1;
128
 
129
static char *ppcbug_inits[] =
130
{"\r", NULL};
131
 
132
static void
133
init_ppc_cmds (char *LOAD_CMD,
134
               struct monitor_ops *OPS,
135
               struct target_ops *targops)
136
{
137
  OPS->flags = MO_CLR_BREAK_USES_ADDR | MO_HANDLE_NL;
138
  OPS->init = ppcbug_inits;     /* Init strings */
139
  OPS->cont = "g\r";            /* continue command */
140
  OPS->step = "t\r";            /* single step */
141
  OPS->stop = NULL;             /* interrupt command */
142
  OPS->set_break = "br %x\r";   /* set a breakpoint */
143
  OPS->clr_break = "nobr %x\r"; /* clear a breakpoint */
144
  OPS->clr_all_break = "nobr\r";        /* clear all breakpoints */
145
  OPS->fill = "bf %x:%x %x;b\r";        /* fill (start count val) */
146
  OPS->setmem.cmdb = "ms %x %02x\r";    /* setmem.cmdb (addr, value) */
147
  OPS->setmem.cmdw = "ms %x %04x\r";    /* setmem.cmdw (addr, value) */
148
  OPS->setmem.cmdl = "ms %x %08x\r";    /* setmem.cmdl (addr, value) */
149
  OPS->setmem.cmdll = NULL;     /* setmem.cmdll (addr, value) */
150
  OPS->setmem.resp_delim = NULL;        /* setreg.resp_delim */
151
  OPS->setmem.term = NULL;      /* setreg.term */
152
  OPS->setmem.term_cmd = NULL;  /* setreg.term_cmd */
153
  OPS->getmem.cmdb = "md %x:%x;b\r";    /* getmem.cmdb (addr, len) */
154
  OPS->getmem.cmdw = "md %x:%x;b\r";    /* getmem.cmdw (addr, len) */
155
  OPS->getmem.cmdl = "md %x:%x;b\r";    /* getmem.cmdl (addr, len) */
156
  OPS->getmem.cmdll = NULL;     /* getmem.cmdll (addr, len) */
157
  OPS->getmem.resp_delim = " "; /* getmem.resp_delim */
158
  OPS->getmem.term = NULL;      /* getmem.term */
159
  OPS->getmem.term_cmd = NULL;  /* getmem.term_cmd */
160
  OPS->setreg.cmd = "rs %s %x\r";       /* setreg.cmd (name, value) */
161
  OPS->setreg.resp_delim = NULL;        /* setreg.resp_delim */
162
  OPS->setreg.term = NULL;      /* setreg.term */
163
  OPS->setreg.term_cmd = NULL;  /* setreg.term_cmd */
164
  OPS->getreg.cmd = "rs %s\r";  /* getreg.cmd (name) */
165
  OPS->getreg.resp_delim = "="; /* getreg.resp_delim */
166
  OPS->getreg.term = NULL;      /* getreg.term */
167
  OPS->getreg.term_cmd = NULL;  /* getreg.term_cmd */
168
  OPS->register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)";         /* register_pattern */
169
  OPS->supply_register = ppcbug_supply_register;
170
  OPS->dump_registers = "rd\r"; /* dump all registers */
171
  OPS->load_routine = NULL;     /* load_routine (defaults to SRECs) */
172
  OPS->load = LOAD_CMD;         /* download command */
173
  OPS->loadresp = NULL;         /* load response */
174
  OPS->prompt = "PPC1-Bug>";    /* monitor command prompt */
175
  OPS->line_term = "\r";        /* end-of-line terminator */
176
  OPS->cmd_end = NULL;          /* optional command terminator */
177
  OPS->target = targops;        /* target operations */
178
  OPS->stopbits = SERIAL_1_STOPBITS;    /* number of stop bits */
179
  OPS->regnames = ppcbug_regnames;      /* registers names */
180
  OPS->magic = MONITOR_OPS_MAGIC;       /* magic */
181
}
182
 
183
 
184
static struct monitor_ops ppcbug_cmds0;
185
static struct monitor_ops ppcbug_cmds1;
186
 
187
static void
188
ppcbug_open0 (char *args, int from_tty)
189
{
190
  monitor_open (args, &ppcbug_cmds0, from_tty);
191
}
192
 
193
static void
194
ppcbug_open1 (char *args, int from_tty)
195
{
196
  monitor_open (args, &ppcbug_cmds1, from_tty);
197
}
198
 
199
extern initialize_file_ftype _initialize_ppcbug_rom; /* -Wmissing-prototypes */
200
 
201
void
202
_initialize_ppcbug_rom (void)
203
{
204
  init_ppc_cmds ("lo 0\r", &ppcbug_cmds0, &ppcbug_ops0);
205
  init_ppc_cmds ("lo 1\r", &ppcbug_cmds1, &ppcbug_ops1);
206
  init_monitor_ops (&ppcbug_ops0);
207
 
208
  ppcbug_ops0.to_shortname = "ppcbug";
209
  ppcbug_ops0.to_longname = "PowerPC PPCBug monitor on port 0";
210
  ppcbug_ops0.to_doc = "Debug via the PowerPC PPCBug monitor using port 0.\n\
211
Specify the serial device it is connected to (e.g. /dev/ttya).";
212
  ppcbug_ops0.to_open = ppcbug_open0;
213
 
214
  add_target (&ppcbug_ops0);
215
 
216
  init_monitor_ops (&ppcbug_ops1);
217
 
218
  ppcbug_ops1.to_shortname = "ppcbug1";
219
  ppcbug_ops1.to_longname = "PowerPC PPCBug monitor on port 1";
220
  ppcbug_ops1.to_doc = "Debug via the PowerPC PPCBug monitor using port 1.\n\
221
Specify the serial device it is connected to (e.g. /dev/ttya).";
222
  ppcbug_ops1.to_open = ppcbug_open1;
223
 
224
  add_target (&ppcbug_ops1);
225
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.