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
|
/* main.c --- main function for stand-alone RX simulator.
Copyright (C) 2005, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
Contributed by Red Hat, Inc.
This file is part of the GNU simulators.
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 3 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, see <http://www.gnu.org/licenses/>. */
#include "config.h"
#include <stdio.h>
#include <string.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <assert.h>
#include <setjmp.h>
#include <signal.h>
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#include "bfd.h"
#include "cpu.h"
#include "mem.h"
#include "misc.h"
#include "load.h"
#include "trace.h"
#include "err.h"
static int disassemble = 0;
/* This must be higher than any other option index. */
#define OPT_ACT 400
#define ACT(E,A) (OPT_ACT + SIM_ERR_##E * SIM_ERRACTION_NUM_ACTIONS + SIM_ERRACTION_##A)
static struct option sim_options[] =
{
{ "end-sim-args", 0, NULL, 'E' },
{ "exit-null-deref", 0, NULL, ACT(NULL_POINTER_DEREFERENCE,EXIT) },
{ "warn-null-deref", 0, NULL, ACT(NULL_POINTER_DEREFERENCE,WARN) },
{ "ignore-null-deref", 0, NULL, ACT(NULL_POINTER_DEREFERENCE,IGNORE) },
{ "exit-unwritten-pages", 0, NULL, ACT(READ_UNWRITTEN_PAGES,EXIT) },
{ "warn-unwritten-pages", 0, NULL, ACT(READ_UNWRITTEN_PAGES,WARN) },
{ "ignore-unwritten-pages", 0, NULL, ACT(READ_UNWRITTEN_PAGES,IGNORE) },
{ "exit-unwritten-bytes", 0, NULL, ACT(READ_UNWRITTEN_BYTES,EXIT) },
{ "warn-unwritten-bytes", 0, NULL, ACT(READ_UNWRITTEN_BYTES,WARN) },
{ "ignore-unwritten-bytes", 0, NULL, ACT(READ_UNWRITTEN_BYTES,IGNORE) },
{ "exit-corrupt-stack", 0, NULL, ACT(CORRUPT_STACK,EXIT) },
{ "warn-corrupt-stack", 0, NULL, ACT(CORRUPT_STACK,WARN) },
{ "ignore-corrupt-stack", 0, NULL, ACT(CORRUPT_STACK,IGNORE) },
{ 0, 0, 0, 0 }
};
static void
done (int exit_code)
{
if (verbose)
{
stack_heap_stats ();
mem_usage_stats ();
/* Only use comma separated numbers when being very verbose.
Comma separated numbers are hard to parse in awk scripts. */
if (verbose > 1)
printf ("insns: %14s\n", comma (rx_cycles));
else
printf ("insns: %u\n", rx_cycles);
pipeline_stats ();
}
exit (exit_code);
}
int
main (int argc, char **argv)
{
int o;
int save_trace;
bfd *prog;
int rc;
/* By default, we exit when an execution error occurs. */
execution_error_init_standalone ();
while ((o = getopt_long (argc, argv, "tvdeEwi", sim_options, NULL)) != -1)
{
if (o == 'E')
/* Stop processing the command line. This is so that any remaining
words on the command line that look like arguments will be passed
on to the program being simulated. */
break;
if (o >= OPT_ACT)
{
int e, a;
o -= OPT_ACT;
e = o / SIM_ERRACTION_NUM_ACTIONS;
a = o % SIM_ERRACTION_NUM_ACTIONS;
execution_error_set_action (e, a);
}
else switch (o)
{
case 't':
trace++;
break;
case 'v':
verbose++;
break;
case 'd':
disassemble++;
break;
case 'e':
execution_error_init_standalone ();
break;
case 'w':
execution_error_warn_all ();
break;
case 'i':
execution_error_ignore_all ();
break;
case '?':
{
int i;
fprintf (stderr,
"usage: run [options] program [arguments]\n");
fprintf (stderr,
"\t-v\t- increase verbosity.\n"
"\t-t\t- trace.\n"
"\t-d\t- disassemble.\n"
"\t-E\t- stop processing sim args\n"
"\t-e\t- exit on all execution errors.\n"
"\t-w\t- warn (do not exit) on all execution errors.\n"
"\t-i\t- ignore all execution errors.\n");
for (i=0; sim_options[i].name; i++)
fprintf (stderr, "\t--%s\n", sim_options[i].name);
exit (1);
}
}
}
prog = bfd_openr (argv[optind], 0);
if (!prog)
{
fprintf (stderr, "Can't read %s\n", argv[optind]);
exit (1);
}
if (!bfd_check_format (prog, bfd_object))
{
fprintf (stderr, "%s not a rx program\n", argv[optind]);
exit (1);
}
init_regs ();
rx_in_gdb = 0;
save_trace = trace;
trace = 0;
rx_load (prog);
trace = save_trace;
sim_disasm_init (prog);
enable_counting = verbose;
rc = setjmp (decode_jmp_buf);
if (rc == 0)
{
if (!trace && !disassemble)
{
/* This will longjmp to the above if an exception
happens. */
for (;;)
decode_opcode ();
}
else
while (1)
{
if (trace)
printf ("\n");
if (disassemble)
{
enable_counting = 0;
sim_disasm_one ();
enable_counting = verbose;
}
rc = decode_opcode ();
if (trace)
trace_register_changes ();
}
}
if (RX_HIT_BREAK (rc))
done (1);
else if (RX_EXITED (rc))
done (RX_EXIT_STATUS (rc));
else if (RX_STOPPED (rc))
{
if (verbose)
printf("Stopped on signal %d\n", RX_STOP_SIG (rc));
exit(1);
}
done (0);
exit (0);
}
|
