1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
|
/* Remote target glue for the Intel 960 MON960 ROM monitor.
Copyright 1995, 1996 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "gdbcore.h"
#include "target.h"
#include "monitor.h"
#include "serial.h"
#include "srec.h"
#include "xmodem.h"
#include "symtab.h"
#include "symfile.h" /* for generic_load */
#if !defined (HAVE_TERMIOS) && !defined (HAVE_TERMIO) && !defined (HAVE_SGTTY)
#define HAVE_SGTTY
#endif
#ifdef HAVE_SGTTY
#include <sys/ioctl.h>
#endif
#include <sys/types.h> /* Needed by file.h on Sys V */
#include <sys/file.h>
#include <signal.h>
#include <sys/stat.h>
#define USE_GENERIC_LOAD
static struct target_ops mon960_ops;
static void mon960_open PARAMS ((char *args, int from_tty));
#ifdef USE_GENERIC_LOAD
static void
mon960_load_gen (filename, from_tty)
char *filename;
int from_tty;
{
extern int inferior_pid;
generic_load (filename, from_tty);
/* Finally, make the PC point at the start address */
if (exec_bfd)
write_pc (bfd_get_start_address (exec_bfd));
inferior_pid = 0; /* No process now */
}
#else
static void
mon960_load (desc, file, hashmark)
serial_t desc;
char *file;
int hashmark;
{
bfd *abfd;
asection *s;
char *buffer;
int i;
buffer = alloca (XMODEM_PACKETSIZE);
abfd = bfd_openr (file, 0);
if (!abfd)
{
printf_filtered ("Unable to open file %s\n", file);
return;
}
if (bfd_check_format (abfd, bfd_object) == 0)
{
printf_filtered ("File is not an object file\n");
return;
}
for (s = abfd->sections; s; s = s->next)
if (s->flags & SEC_LOAD)
{
bfd_size_type section_size;
printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma,
s->vma + s->_raw_size);
gdb_flush (gdb_stdout);
monitor_printf (current_monitor->load, s->vma);
if (current_monitor->loadresp)
monitor_expect (current_monitor->loadresp, NULL, 0);
xmodem_init_xfer (desc);
section_size = bfd_section_size (abfd, s);
for (i = 0; i < section_size; i += XMODEM_DATASIZE)
{
int numbytes;
numbytes = min (XMODEM_DATASIZE, section_size - i);
bfd_get_section_contents (abfd, s, buffer + XMODEM_DATAOFFSET, i,
numbytes);
xmodem_send_packet (desc, buffer, numbytes, hashmark);
if (hashmark)
{
putchar_unfiltered ('#');
gdb_flush (gdb_stdout);
}
} /* Per-packet (or S-record) loop */
xmodem_finish_xfer (desc);
monitor_expect_prompt (NULL, 0);
putchar_unfiltered ('\n');
} /* Loadable sections */
if (hashmark)
putchar_unfiltered ('\n');
}
#endif /* USE_GENERIC_LOAD */
/* This array of registers need to match the indexes used by GDB.
This exists because the various ROM monitors use different strings
than does GDB, and don't necessarily support all the registers
either. So, typing "info reg sp" becomes a "r30". */
/* these correspond to the offsets from tm-* files from config directories */
/* g0-g14, fp, pfp, sp, rip,r3-15, pc, ac, tc, fp0-3 */
/* NOTE: "ip" is documented as "ir" in the Mon960 UG. */
/* NOTE: "ir" can't be accessed... but there's an ip and rip. */
static char *mon960_regnames[NUM_REGS] = {
/* 0 */ "pfp", "sp", "rip", "r3", "r4", "r5", "r6", "r7",
/* 8 */ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
/* 16 */ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7",
/* 24 */ "g8", "g9", "g10", "g11", "g12", "g13", "g14", "fp",
/* 32 */ "pc", "ac", "tc", "ip", "fp0", "fp1", "fp2", "fp3",
};
/* Define the monitor command strings. Since these are passed directly
through to a printf style function, we may include formatting
strings. We also need a CR or LF on the end. */
/* need to pause the monitor for timing reasons, so slow it down */
static char *mon960_inits[] = {"\n\r\r\r\r\r\r\r\r\r\r\r\r\r\r\n\r\n\r\n", NULL};
static struct monitor_ops mon960_cmds =
{
MO_CLR_BREAK_USES_ADDR
| MO_NO_ECHO_ON_OPEN
| MO_SEND_BREAK_ON_STOP
| MO_GETMEM_READ_SINGLE, /* flags */
mon960_inits, /* Init strings */
"go\n\r", /* continue command */
"st\n\r", /* single step */
"\n\r", /* break interrupts the program */
NULL, /* set a breakpoint */
/* can't use "br" because only 2 hw bps are supported */
NULL, /* clear a breakpoint - "de" is for hw bps */
NULL, /* clear all breakpoints */
NULL, /* fill (start end val) */
/* can't use "fi" because it takes words, not bytes */
{
/* can't use "mb", "md" or "mo" because they require interaction */
NULL, /* setmem.cmdb (addr, value) */
"md %x %x\n\r", /* setmem.cmdw (addr, value) */
NULL, /* setmem.cmdl (addr, value) */
NULL, /* setmem.cmdll (addr, value) */
NULL, /* setmem.resp_delim */
NULL, /* setmem.term */
NULL, /* setmem.term_cmd */
},
{
/* since the parsing of multiple bytes is difficult due to
interspersed addresses, we'll only read 1 value at a time,
even tho these can handle a count */
"db %x\n\r", /* getmem.cmdb (addr, #bytes) */
"ds %x\n\r", /* getmem.cmdw (addr, #swords) */
"di %x\n\r", /* getmem.cmdl (addr, #words) */
"dd %x\n\r", /* getmem.cmdll (addr, #dwords) */
" : ", /* getmem.resp_delim */
NULL, /* getmem.term */
NULL, /* getmem.term_cmd */
},
{
"md %s %x\n\r", /* setreg.cmd (name, value) */
NULL, /* setreg.resp_delim */
NULL, /* setreg.term */
NULL /* setreg.term_cmd */
},
{
"di %s\n\r", /* getreg.cmd (name) */
" : ", /* getreg.resp_delim */
NULL, /* getreg.term */
NULL, /* getreg.term_cmd */
},
"re\n\r", /* dump_registers */
"\\(\\w+\\)=\\([0-9a-fA-F]+\\)", /* register_pattern */
NULL, /* supply_register */
#ifdef USE_GENERIC_LOAD
NULL, /* load_routine (defaults to SRECs) */
NULL, /* download command */
NULL, /* load response */
#else
mon960_load, /* load_routine (defaults to SRECs) */
"do\n\r", /* download command */
"Downloading\n\r", /* load response */
#endif
"=>", /* monitor command prompt */
"\n\r", /* end-of-command delimitor */
NULL, /* optional command terminator */
&mon960_ops, /* target operations */
SERIAL_1_STOPBITS, /* number of stop bits */
mon960_regnames, /* registers names */
MONITOR_OPS_MAGIC /* magic */
};
static void
mon960_open (args, from_tty)
char *args;
int from_tty;
{
monitor_open (args, &mon960_cmds, from_tty);
}
void
_initialize_mon960 ()
{
init_monitor_ops (&mon960_ops);
mon960_ops.to_shortname = "mon960"; /* for the target command */
mon960_ops.to_longname = "Intel 960 MON960 monitor";
#ifdef USE_GENERIC_LOAD
mon960_ops.to_load = mon960_load_gen; /* FIXME - should go back and try "do" */
#endif
/* use SW breaks; target only supports 2 HW breakpoints */
mon960_ops.to_insert_breakpoint = memory_insert_breakpoint;
mon960_ops.to_remove_breakpoint = memory_remove_breakpoint;
mon960_ops.to_doc =
"Use an Intel 960 board running the MON960 debug monitor.\n\
Specify the serial device it is connected to (e.g. /dev/ttya).";
mon960_ops.to_open = mon960_open;
add_target (&mon960_ops);
}
|
