Commit | Line | Data |
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c906108c | 1 | /* run front end support for all the simulators. |
6aba47ca | 2 | Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
e4d013fc | 3 | 2002, 2003, 2004, 2007, 2008, 2009 Free Software Foundation, Inc. |
c906108c SS |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
4744ac1b JB |
7 | the Free Software Foundation; either version 3 of the License, or |
8 | (at your option) any later version. | |
c906108c SS |
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 | |
13 | GNU General Public License for more details. | |
14 | ||
4744ac1b JB |
15 | You should have received a copy of the GNU General Public License |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
c906108c SS |
17 | |
18 | /* Steve Chamberlain sac@cygnus.com, | |
19 | and others at Cygnus. */ | |
20 | ||
41ee5402 DJ |
21 | #ifdef HAVE_CONFIG_H |
22 | #include "cconfig.h" | |
c906108c | 23 | #include "tconfig.h" |
41ee5402 | 24 | #endif |
c906108c SS |
25 | |
26 | #include <signal.h> | |
27 | #include <stdio.h> | |
28 | #ifdef __STDC__ | |
29 | #include <stdarg.h> | |
30 | #else | |
31 | #include <varargs.h> | |
32 | #endif | |
33 | ||
34 | #ifdef HAVE_STDLIB_H | |
35 | #include <stdlib.h> | |
36 | #endif | |
37 | ||
38 | #ifdef HAVE_STRING_H | |
39 | #include <string.h> | |
40 | #else | |
41 | #ifdef HAVE_STRINGS_H | |
42 | #include <strings.h> | |
43 | #endif | |
44 | #endif | |
45 | ||
46 | #include "libiberty.h" | |
47 | #include "bfd.h" | |
3c25f8c7 AC |
48 | #include "gdb/callback.h" |
49 | #include "gdb/remote-sim.h" | |
6d358e86 | 50 | #include "ansidecl.h" |
de4112fa | 51 | #include "run-sim.h" |
6efef468 | 52 | #include "version.h" |
c906108c | 53 | |
6efef468 JM |
54 | static void usage PARAMS ((int help)); |
55 | static void print_version PARAMS ((void)); | |
c906108c SS |
56 | extern int optind; |
57 | extern char *optarg; | |
58 | ||
59 | extern host_callback default_callback; | |
60 | ||
61 | static char *myname; | |
62 | ||
c906108c SS |
63 | extern int getopt (); |
64 | ||
7a292a7a | 65 | #ifdef NEED_UI_LOOP_HOOK |
dbec3bef | 66 | /* Gdb foolery. This is only needed for gdb using a gui. */ |
0aaa4a81 | 67 | int (*deprecated_ui_loop_hook) PARAMS ((int signo)); |
7a292a7a SS |
68 | #endif |
69 | ||
c906108c SS |
70 | static SIM_DESC sd; |
71 | ||
72 | static RETSIGTYPE | |
6d358e86 | 73 | cntrl_c (int sig ATTRIBUTE_UNUSED) |
c906108c SS |
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; | |
85 | char **av; | |
86 | { | |
87 | RETSIGTYPE (*prev_sigint) (); | |
88 | bfd *abfd; | |
89 | int i; | |
90 | int verbose = 0; | |
91 | int trace = 0; | |
baa7ae6f AC |
92 | #ifdef SIM_HAVE_ENVIRONMENT |
93 | int operating_p = 0; | |
94 | #endif | |
c906108c SS |
95 | char *name; |
96 | static char *no_args[4]; | |
97 | char **sim_argv = &no_args[0]; | |
98 | char **prog_args; | |
99 | enum sim_stop reason; | |
100 | int sigrc; | |
101 | ||
102 | myname = av[0] + strlen (av[0]); | |
103 | while (myname > av[0] && myname[-1] != '/') | |
104 | --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. | |
114 | Simulators that use functions such as sim_size() still require | |
dbec3bef | 115 | this. */ |
c906108c SS |
116 | default_callback.init (&default_callback); |
117 | sim_set_callbacks (&default_callback); | |
118 | ||
de4112fa NC |
119 | #ifdef SIM_TARGET_SWITCHES |
120 | ac = sim_target_parse_command_line (ac, av); | |
121 | #endif | |
122 | ||
6efef468 JM |
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 | ||
c906108c SS |
136 | /* FIXME: This is currently being rewritten to have each simulator |
137 | do all argv processing. */ | |
138 | ||
dbec3bef | 139 | while ((i = getopt (ac, av, "a:c:m:op:s:tv")) != EOF) |
c906108c SS |
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; | |
baa7ae6f AC |
166 | #ifdef SIM_HAVE_ENVIRONMENT |
167 | case 'o': | |
168 | /* Operating enironment where any signals are delivered to the | |
dbec3bef | 169 | target. */ |
baa7ae6f AC |
170 | operating_p = 1; |
171 | break; | |
d25b1553 | 172 | #endif |
c906108c SS |
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; | |
c906108c SS |
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. */ | |
c906108c | 192 | default: |
6efef468 | 193 | usage (0); |
c906108c SS |
194 | } |
195 | ||
196 | ac -= optind; | |
197 | av += optind; | |
198 | if (ac <= 0) | |
6efef468 | 199 | usage (0); |
c906108c SS |
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); | |
dbec3bef | 210 | if (!abfd) |
c906108c | 211 | { |
dbec3bef | 212 | fprintf (stderr, "%s: can't open %s: %s\n", |
c906108c SS |
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 | |
dbec3bef | 239 | performed by the simulator can occur. */ |
c906108c SS |
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 | ||
baa7ae6f AC |
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 | |
dbec3bef | 253 | sim_stop_reason() can be used to determine any stop reason. */ |
baa7ae6f AC |
254 | if (trace) |
255 | sim_set_trace (); | |
781c552e | 256 | sigrc = 0; |
baa7ae6f AC |
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 | |
c906108c SS |
266 | if (trace) |
267 | { | |
268 | int done = 0; | |
7fc5b5ad | 269 | prev_sigint = signal (SIGINT, cntrl_c); |
c906108c SS |
270 | while (!done) |
271 | { | |
272 | done = sim_trace (sd); | |
273 | } | |
7fc5b5ad | 274 | signal (SIGINT, prev_sigint); |
baa7ae6f | 275 | sim_stop_reason (sd, &reason, &sigrc); |
c906108c SS |
276 | } |
277 | else | |
278 | { | |
baa7ae6f | 279 | prev_sigint = signal (SIGINT, cntrl_c); |
781c552e | 280 | sigrc = 0; |
baa7ae6f AC |
281 | sim_resume (sd, 0, sigrc); |
282 | signal (SIGINT, prev_sigint); | |
283 | sim_stop_reason (sd, &reason, &sigrc); | |
c906108c | 284 | } |
baa7ae6f | 285 | #endif |
c906108c SS |
286 | |
287 | if (verbose) | |
288 | sim_info (sd, 0); | |
c906108c SS |
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 | ||
c906108c SS |
296 | /* Why did we stop? */ |
297 | switch (reason) | |
298 | { | |
299 | case sim_signalled: | |
300 | case sim_stopped: | |
301 | if (sigrc != 0) | |
dbec3bef | 302 | fprintf (stderr, "program stopped with signal %d.\n", sigrc); |
c906108c SS |
303 | break; |
304 | ||
305 | case sim_exited: | |
306 | break; | |
307 | ||
308 | case sim_running: | |
dbec3bef | 309 | case sim_polling: /* These indicate a serious problem. */ |
c906108c SS |
310 | abort (); |
311 | break; | |
312 | ||
313 | } | |
c906108c SS |
314 | |
315 | return sigrc; | |
316 | } | |
317 | ||
318 | static void | |
6efef468 | 319 | usage (int help) |
c906108c | 320 | { |
6efef468 JM |
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"); | |
c906108c | 326 | #ifdef SIM_HAVE_SIMCACHE |
6efef468 | 327 | fprintf (stream, "-c size Set simulator cache size to `size'.\n"); |
c906108c | 328 | #endif |
6efef468 | 329 | fprintf (stream, "-m size Set memory size of simulator, in bytes.\n"); |
baa7ae6f | 330 | #ifdef SIM_HAVE_ENVIRONMENT |
6efef468 | 331 | fprintf (stream, "-o Select operating (kernel) environment.\n"); |
baa7ae6f | 332 | #endif |
c906108c | 333 | #ifdef SIM_HAVE_PROFILE |
6efef468 JM |
334 | fprintf (stream, "-p freq Set profiling frequency.\n"); |
335 | fprintf (stream, "-s size Set profiling size.\n"); | |
c906108c | 336 | #endif |
6efef468 JM |
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"); | |
de4112fa | 343 | #ifdef SIM_TARGET_SWITCHES |
6efef468 JM |
344 | fprintf (stream, "\nTarget specific options:\n"); |
345 | sim_target_display_usage (help); | |
de4112fa | 346 | #endif |
6efef468 JM |
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); | |
c906108c | 358 | } |