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[/] [openrisc/] [trunk/] [gnu-stable/] [gdb-7.2/] [sim/] [common/] [run.c] - Blame information for rev 841

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Line No. Rev Author Line
1 330 jeremybenn
/* run front end support for all the simulators.
2
   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
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   2002, 2003, 2004, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
4
 
5
This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
9
 
10
This program is distributed in the hope that it will be useful,
11
but WITHOUT ANY WARRANTY; without even the implied warranty of
12
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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GNU General Public License for more details.
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15
You should have received a copy of the GNU General Public License
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along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17
 
18
/* Steve Chamberlain sac@cygnus.com,
19
   and others at Cygnus.  */
20
 
21
#ifdef HAVE_CONFIG_H
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#include "cconfig.h"
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#include "tconfig.h"
24
#endif
25
 
26
#include <signal.h>
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#include <stdio.h>
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#ifdef __STDC__
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#include <stdarg.h>
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#else
31
#include <varargs.h>
32
#endif
33
 
34
#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
36
#endif
37
 
38
#ifdef HAVE_STRING_H
39
#include <string.h>
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#else
41
#ifdef HAVE_STRINGS_H
42
#include <strings.h>
43
#endif
44
#endif
45
 
46
#include "libiberty.h"
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#include "bfd.h"
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#include "gdb/callback.h"
49
#include "gdb/remote-sim.h"
50
#include "ansidecl.h"
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#include "run-sim.h"
52
#include "version.h"
53
 
54
static void usage PARAMS ((int help));
55
static void print_version PARAMS ((void));
56
extern int optind;
57
extern char *optarg;
58
 
59
extern host_callback default_callback;
60
 
61
static char *myname;
62
 
63
extern int getopt ();
64
 
65
#ifdef NEED_UI_LOOP_HOOK
66
/* Gdb foolery. This is only needed for gdb using a gui.  */
67
int (*deprecated_ui_loop_hook) PARAMS ((int signo));
68
#endif
69
 
70
static SIM_DESC sd;
71
 
72
static RETSIGTYPE
73
cntrl_c (int sig ATTRIBUTE_UNUSED)
74
{
75
  if (! sim_stop (sd))
76
    {
77
      fprintf (stderr, "Quit!\n");
78
      exit (1);
79
    }
80
}
81
 
82
int
83
main (ac, av)
84
     int ac;
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     char **av;
86
{
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  RETSIGTYPE (*prev_sigint) ();
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  bfd *abfd;
89
  int i;
90
  int verbose = 0;
91
  int trace = 0;
92
#ifdef SIM_HAVE_ENVIRONMENT
93
  int operating_p = 0;
94
#endif
95
  char *name;
96
  static char *no_args[4];
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  char **sim_argv = &no_args[0];
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  char **prog_args;
99
  enum sim_stop reason;
100
  int sigrc;
101
 
102
  myname = av[0] + strlen (av[0]);
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  while (myname > av[0] && myname[-1] != '/')
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    --myname;
105
 
106
  /* The first element of sim_open's argv is the program name.  */
107
  no_args[0] = av[0];
108
#ifdef SIM_HAVE_BIENDIAN
109
  no_args[1] = "-E";
110
  no_args[2] = "set-later";
111
#endif
112
 
113
  /* FIXME: This is currently being migrated into sim_open.
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     Simulators that use functions such as sim_size() still require
115
     this.  */
116
  default_callback.init (&default_callback);
117
  sim_set_callbacks (&default_callback);
118
 
119
#ifdef SIM_TARGET_SWITCHES
120
  ac = sim_target_parse_command_line (ac, av);
121
#endif
122
 
123
  for (i = 1; av[i]; ++i)
124
    {
125
      if (strcmp (av[i], "--help") == 0)
126
        {
127
          usage (1);
128
        }
129
      else if (strcmp (av[i], "--version") == 0)
130
        {
131
          print_version ();
132
          return 0;
133
        }
134
    }
135
 
136
  /* FIXME: This is currently being rewritten to have each simulator
137
     do all argv processing.  */
138
 
139
  while ((i = getopt (ac, av, "a:c:m:op:s:tv")) != EOF)
140
    switch (i)
141
      {
142
      case 'a':
143
        /* FIXME: Temporary hack.  */
144
        {
145
          int len = strlen (av[0]) + strlen (optarg);
146
          char *argbuf = (char *) alloca (len + 2 + 50);
147
          sprintf (argbuf, "%s %s", av[0], optarg);
148
#ifdef SIM_HAVE_BIENDIAN
149
          /* The desired endianness must be passed to sim_open.
150
             The value for "set-later" is set when we know what it is.
151
             -E support isn't yet part of the published interface.  */
152
          strcat (argbuf, " -E set-later");
153
#endif
154
          sim_argv = buildargv (argbuf);
155
        }
156
        break;
157
#ifdef SIM_HAVE_SIMCACHE
158
      case 'c':
159
        sim_set_simcache_size (atoi (optarg));
160
        break;
161
#endif
162
      case 'm':
163
        /* FIXME: Rename to sim_set_mem_size.  */
164
        sim_size (atoi (optarg));
165
        break;
166
#ifdef SIM_HAVE_ENVIRONMENT
167
      case 'o':
168
        /* Operating enironment where any signals are delivered to the
169
           target.  */
170
        operating_p = 1;
171
        break;
172
#endif
173
#ifdef SIM_HAVE_PROFILE
174
      case 'p':
175
        sim_set_profile (atoi (optarg));
176
        break;
177
      case 's':
178
        sim_set_profile_size (atoi (optarg));
179
        break;
180
#endif
181
      case 't':
182
        trace = 1;
183
        break;
184
      case 'v':
185
        /* Things that are printed with -v are the kinds of things that
186
           gcc -v prints.  This is not meant to include detailed tracing
187
           or debugging information, just summaries.  */
188
        verbose = 1;
189
        /* sim_set_verbose (1); */
190
        break;
191
        /* FIXME: Quick hack, to be replaced by more general facility.  */
192
      default:
193
        usage (0);
194
      }
195
 
196
  ac -= optind;
197
  av += optind;
198
  if (ac <= 0)
199
    usage (0);
200
 
201
  name = *av;
202
  prog_args = av;
203
 
204
  if (verbose)
205
    {
206
      printf ("%s %s\n", myname, name);
207
    }
208
 
209
  abfd = bfd_openr (name, 0);
210
  if (!abfd)
211
    {
212
      fprintf (stderr, "%s: can't open %s: %s\n",
213
               myname, name, bfd_errmsg (bfd_get_error ()));
214
      exit (1);
215
    }
216
 
217
  if (!bfd_check_format (abfd, bfd_object))
218
    {
219
      fprintf (stderr, "%s: can't load %s: %s\n",
220
               myname, name, bfd_errmsg (bfd_get_error ()));
221
      exit (1);
222
    }
223
 
224
#ifdef SIM_HAVE_BIENDIAN
225
  /* The endianness must be passed to sim_open because one may wish to
226
     examine/set registers before calling sim_load [which is the other
227
     place where one can determine endianness].  We previously passed the
228
     endianness via global `target_byte_order' but that's not a clean
229
     interface.  */
230
  for (i = 1; sim_argv[i + 1] != NULL; ++i)
231
    continue;
232
  if (bfd_big_endian (abfd))
233
    sim_argv[i] = "big";
234
  else
235
    sim_argv[i] = "little";
236
#endif
237
 
238
  /* Ensure that any run-time initialisation that needs to be
239
     performed by the simulator can occur.  */
240
  sd = sim_open (SIM_OPEN_STANDALONE, &default_callback, abfd, sim_argv);
241
  if (sd == 0)
242
    exit (1);
243
 
244
  if (sim_load (sd, name, abfd, 0) == SIM_RC_FAIL)
245
    exit (1);
246
 
247
  if (sim_create_inferior (sd, abfd, prog_args, NULL) == SIM_RC_FAIL)
248
    exit (1);
249
 
250
#ifdef SIM_HAVE_ENVIRONMENT
251
  /* NOTE: An old simulator supporting the operating environment MUST
252
     provide sim_set_trace() and not sim_trace(). That way
253
     sim_stop_reason() can be used to determine any stop reason.  */
254
  if (trace)
255
    sim_set_trace ();
256
  sigrc = 0;
257
  do
258
    {
259
      prev_sigint = signal (SIGINT, cntrl_c);
260
      sim_resume (sd, 0, sigrc);
261
      signal (SIGINT, prev_sigint);
262
      sim_stop_reason (sd, &reason, &sigrc);
263
    }
264
  while (operating_p && reason == sim_stopped && sigrc != SIGINT);
265
#else
266
  if (trace)
267
    {
268
      int done = 0;
269
      prev_sigint = signal (SIGINT, cntrl_c);
270
      while (!done)
271
        {
272
          done = sim_trace (sd);
273
        }
274
      signal (SIGINT, prev_sigint);
275
      sim_stop_reason (sd, &reason, &sigrc);
276
    }
277
  else
278
    {
279
      prev_sigint = signal (SIGINT, cntrl_c);
280
      sigrc = 0;
281
      sim_resume (sd, 0, sigrc);
282
      signal (SIGINT, prev_sigint);
283
      sim_stop_reason (sd, &reason, &sigrc);
284
    }
285
#endif
286
 
287
  if (verbose)
288
    sim_info (sd, 0);
289
  sim_close (sd, 0);
290
 
291
  /* If reason is sim_exited, then sigrc holds the exit code which we want
292
     to return.  If reason is sim_stopped or sim_signalled, then sigrc holds
293
     the signal that the simulator received; we want to return that to
294
     indicate failure.  */
295
 
296
  /* Why did we stop? */
297
  switch (reason)
298
    {
299
    case sim_signalled:
300
    case sim_stopped:
301
      if (sigrc != 0)
302
        fprintf (stderr, "program stopped with signal %d.\n", sigrc);
303
      break;
304
 
305
    case sim_exited:
306
      break;
307
 
308
    case sim_running:
309
    case sim_polling: /* These indicate a serious problem.  */
310
      abort ();
311
      break;
312
 
313
    }
314
 
315
  return sigrc;
316
}
317
 
318
static void
319
usage (int help)
320
{
321
  FILE *stream = help ? stdout : stderr;
322
 
323
  fprintf (stream, "Usage: %s [options] program [program args]\n", myname);
324
  fprintf (stream, "Options:\n");
325
  fprintf (stream, "-a args         Pass `args' to simulator.\n");
326
#ifdef SIM_HAVE_SIMCACHE
327
  fprintf (stream, "-c size         Set simulator cache size to `size'.\n");
328
#endif
329
  fprintf (stream, "-m size         Set memory size of simulator, in bytes.\n");
330
#ifdef SIM_HAVE_ENVIRONMENT
331
  fprintf (stream, "-o              Select operating (kernel) environment.\n");
332
#endif
333
#ifdef SIM_HAVE_PROFILE
334
  fprintf (stream, "-p freq         Set profiling frequency.\n");
335
  fprintf (stream, "-s size         Set profiling size.\n");
336
#endif
337
  fprintf (stream, "-t              Perform instruction tracing.\n");
338
  fprintf (stream, "                Note: Very few simulators support tracing.\n");
339
  fprintf (stream, "-v              Verbose output.\n");
340
  fprintf (stream, "\n");
341
  fprintf (stream, "program args    Arguments to pass to simulated program.\n");
342
  fprintf (stream, "                Note: Very few simulators support this.\n");
343
#ifdef SIM_TARGET_SWITCHES
344
  fprintf (stream, "\nTarget specific options:\n");
345
  sim_target_display_usage (help);
346
#endif
347
 
348
  if (help && REPORT_BUGS_TO[0])
349
    printf ("Report bugs to %s\n", REPORT_BUGS_TO);
350
 
351
  exit (help ? 0 : 1);
352
}
353
 
354
static void
355
print_version ()
356
{
357
  printf ("GNU simulator %s%s\n", PKGVERSION, version);
358
}

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