Commit | Line | Data |
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c906108c | 1 | /* run front end support for all the simulators. |
32d0add0 | 2 | Copyright (C) 1992-2015 Free Software Foundation, Inc. |
c906108c SS |
3 | |
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
4744ac1b JB |
6 | the Free Software Foundation; either version 3 of the License, or |
7 | (at your option) any later version. | |
c906108c SS |
8 | |
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
4744ac1b JB |
14 | You should have received a copy of the GNU General Public License |
15 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
c906108c SS |
16 | |
17 | /* Steve Chamberlain sac@cygnus.com, | |
18 | and others at Cygnus. */ | |
19 | ||
41ee5402 DJ |
20 | #ifdef HAVE_CONFIG_H |
21 | #include "cconfig.h" | |
c906108c | 22 | #include "tconfig.h" |
41ee5402 | 23 | #endif |
c906108c SS |
24 | |
25 | #include <signal.h> | |
26 | #include <stdio.h> | |
27 | #ifdef __STDC__ | |
28 | #include <stdarg.h> | |
29 | #else | |
30 | #include <varargs.h> | |
31 | #endif | |
32 | ||
33 | #ifdef HAVE_STDLIB_H | |
34 | #include <stdlib.h> | |
35 | #endif | |
36 | ||
37 | #ifdef HAVE_STRING_H | |
38 | #include <string.h> | |
39 | #else | |
40 | #ifdef HAVE_STRINGS_H | |
41 | #include <strings.h> | |
42 | #endif | |
43 | #endif | |
44 | ||
45 | #include "libiberty.h" | |
46 | #include "bfd.h" | |
3c25f8c7 AC |
47 | #include "gdb/callback.h" |
48 | #include "gdb/remote-sim.h" | |
6d358e86 | 49 | #include "ansidecl.h" |
de4112fa | 50 | #include "run-sim.h" |
6efef468 | 51 | #include "version.h" |
c906108c | 52 | |
bdca5ee4 TT |
53 | static void usage (int help); |
54 | static void print_version (void); | |
c906108c SS |
55 | extern int optind; |
56 | extern char *optarg; | |
57 | ||
58 | extern host_callback default_callback; | |
59 | ||
60 | static char *myname; | |
61 | ||
c906108c SS |
62 | extern int getopt (); |
63 | ||
7a292a7a | 64 | #ifdef NEED_UI_LOOP_HOOK |
dbec3bef | 65 | /* Gdb foolery. This is only needed for gdb using a gui. */ |
bdca5ee4 | 66 | int (*deprecated_ui_loop_hook) (int signo); |
7a292a7a SS |
67 | #endif |
68 | ||
c906108c SS |
69 | static SIM_DESC sd; |
70 | ||
71 | static RETSIGTYPE | |
6d358e86 | 72 | cntrl_c (int sig ATTRIBUTE_UNUSED) |
c906108c SS |
73 | { |
74 | if (! sim_stop (sd)) | |
75 | { | |
76 | fprintf (stderr, "Quit!\n"); | |
77 | exit (1); | |
78 | } | |
79 | } | |
80 | ||
81 | int | |
82 | main (ac, av) | |
83 | int ac; | |
84 | char **av; | |
85 | { | |
86 | RETSIGTYPE (*prev_sigint) (); | |
87 | bfd *abfd; | |
88 | int i; | |
89 | int verbose = 0; | |
90 | int trace = 0; | |
baa7ae6f AC |
91 | #ifdef SIM_HAVE_ENVIRONMENT |
92 | int operating_p = 0; | |
93 | #endif | |
c906108c SS |
94 | char *name; |
95 | static char *no_args[4]; | |
96 | char **sim_argv = &no_args[0]; | |
97 | char **prog_args; | |
98 | enum sim_stop reason; | |
99 | int sigrc; | |
100 | ||
101 | myname = av[0] + strlen (av[0]); | |
102 | while (myname > av[0] && myname[-1] != '/') | |
103 | --myname; | |
104 | ||
105 | /* The first element of sim_open's argv is the program name. */ | |
106 | no_args[0] = av[0]; | |
107 | #ifdef SIM_HAVE_BIENDIAN | |
108 | no_args[1] = "-E"; | |
109 | no_args[2] = "set-later"; | |
110 | #endif | |
111 | ||
112 | /* FIXME: This is currently being migrated into sim_open. | |
113 | Simulators that use functions such as sim_size() still require | |
dbec3bef | 114 | this. */ |
c906108c SS |
115 | default_callback.init (&default_callback); |
116 | sim_set_callbacks (&default_callback); | |
117 | ||
de4112fa NC |
118 | #ifdef SIM_TARGET_SWITCHES |
119 | ac = sim_target_parse_command_line (ac, av); | |
120 | #endif | |
121 | ||
6efef468 JM |
122 | for (i = 1; av[i]; ++i) |
123 | { | |
124 | if (strcmp (av[i], "--help") == 0) | |
125 | { | |
126 | usage (1); | |
127 | } | |
128 | else if (strcmp (av[i], "--version") == 0) | |
129 | { | |
130 | print_version (); | |
131 | return 0; | |
132 | } | |
133 | } | |
134 | ||
c906108c SS |
135 | /* FIXME: This is currently being rewritten to have each simulator |
136 | do all argv processing. */ | |
137 | ||
dbec3bef | 138 | while ((i = getopt (ac, av, "a:c:m:op:s:tv")) != EOF) |
c906108c SS |
139 | switch (i) |
140 | { | |
141 | case 'a': | |
142 | /* FIXME: Temporary hack. */ | |
143 | { | |
144 | int len = strlen (av[0]) + strlen (optarg); | |
145 | char *argbuf = (char *) alloca (len + 2 + 50); | |
146 | sprintf (argbuf, "%s %s", av[0], optarg); | |
147 | #ifdef SIM_HAVE_BIENDIAN | |
148 | /* The desired endianness must be passed to sim_open. | |
149 | The value for "set-later" is set when we know what it is. | |
150 | -E support isn't yet part of the published interface. */ | |
151 | strcat (argbuf, " -E set-later"); | |
152 | #endif | |
153 | sim_argv = buildargv (argbuf); | |
154 | } | |
155 | break; | |
156 | #ifdef SIM_HAVE_SIMCACHE | |
157 | case 'c': | |
158 | sim_set_simcache_size (atoi (optarg)); | |
159 | break; | |
160 | #endif | |
161 | case 'm': | |
162 | /* FIXME: Rename to sim_set_mem_size. */ | |
163 | sim_size (atoi (optarg)); | |
164 | break; | |
baa7ae6f AC |
165 | #ifdef SIM_HAVE_ENVIRONMENT |
166 | case 'o': | |
167 | /* Operating enironment where any signals are delivered to the | |
dbec3bef | 168 | target. */ |
baa7ae6f AC |
169 | operating_p = 1; |
170 | break; | |
d25b1553 | 171 | #endif |
c906108c SS |
172 | #ifdef SIM_HAVE_PROFILE |
173 | case 'p': | |
174 | sim_set_profile (atoi (optarg)); | |
175 | break; | |
176 | case 's': | |
177 | sim_set_profile_size (atoi (optarg)); | |
178 | break; | |
179 | #endif | |
180 | case 't': | |
181 | trace = 1; | |
c906108c SS |
182 | break; |
183 | case 'v': | |
184 | /* Things that are printed with -v are the kinds of things that | |
185 | gcc -v prints. This is not meant to include detailed tracing | |
186 | or debugging information, just summaries. */ | |
187 | verbose = 1; | |
188 | /* sim_set_verbose (1); */ | |
189 | break; | |
190 | /* FIXME: Quick hack, to be replaced by more general facility. */ | |
c906108c | 191 | default: |
6efef468 | 192 | usage (0); |
c906108c SS |
193 | } |
194 | ||
195 | ac -= optind; | |
196 | av += optind; | |
197 | if (ac <= 0) | |
6efef468 | 198 | usage (0); |
c906108c SS |
199 | |
200 | name = *av; | |
201 | prog_args = av; | |
202 | ||
203 | if (verbose) | |
204 | { | |
205 | printf ("%s %s\n", myname, name); | |
206 | } | |
207 | ||
208 | abfd = bfd_openr (name, 0); | |
dbec3bef | 209 | if (!abfd) |
c906108c | 210 | { |
dbec3bef | 211 | fprintf (stderr, "%s: can't open %s: %s\n", |
c906108c SS |
212 | myname, name, bfd_errmsg (bfd_get_error ())); |
213 | exit (1); | |
214 | } | |
215 | ||
216 | if (!bfd_check_format (abfd, bfd_object)) | |
217 | { | |
218 | fprintf (stderr, "%s: can't load %s: %s\n", | |
219 | myname, name, bfd_errmsg (bfd_get_error ())); | |
220 | exit (1); | |
221 | } | |
222 | ||
223 | #ifdef SIM_HAVE_BIENDIAN | |
224 | /* The endianness must be passed to sim_open because one may wish to | |
225 | examine/set registers before calling sim_load [which is the other | |
226 | place where one can determine endianness]. We previously passed the | |
227 | endianness via global `target_byte_order' but that's not a clean | |
228 | interface. */ | |
229 | for (i = 1; sim_argv[i + 1] != NULL; ++i) | |
230 | continue; | |
231 | if (bfd_big_endian (abfd)) | |
232 | sim_argv[i] = "big"; | |
233 | else | |
234 | sim_argv[i] = "little"; | |
235 | #endif | |
236 | ||
237 | /* Ensure that any run-time initialisation that needs to be | |
dbec3bef | 238 | performed by the simulator can occur. */ |
c906108c SS |
239 | sd = sim_open (SIM_OPEN_STANDALONE, &default_callback, abfd, sim_argv); |
240 | if (sd == 0) | |
241 | exit (1); | |
242 | ||
243 | if (sim_load (sd, name, abfd, 0) == SIM_RC_FAIL) | |
244 | exit (1); | |
245 | ||
246 | if (sim_create_inferior (sd, abfd, prog_args, NULL) == SIM_RC_FAIL) | |
247 | exit (1); | |
248 | ||
baa7ae6f AC |
249 | #ifdef SIM_HAVE_ENVIRONMENT |
250 | /* NOTE: An old simulator supporting the operating environment MUST | |
251 | provide sim_set_trace() and not sim_trace(). That way | |
dbec3bef | 252 | sim_stop_reason() can be used to determine any stop reason. */ |
baa7ae6f AC |
253 | if (trace) |
254 | sim_set_trace (); | |
781c552e | 255 | sigrc = 0; |
baa7ae6f AC |
256 | do |
257 | { | |
258 | prev_sigint = signal (SIGINT, cntrl_c); | |
259 | sim_resume (sd, 0, sigrc); | |
260 | signal (SIGINT, prev_sigint); | |
261 | sim_stop_reason (sd, &reason, &sigrc); | |
262 | } | |
263 | while (operating_p && reason == sim_stopped && sigrc != SIGINT); | |
264 | #else | |
c906108c SS |
265 | if (trace) |
266 | { | |
267 | int done = 0; | |
7fc5b5ad | 268 | prev_sigint = signal (SIGINT, cntrl_c); |
c906108c SS |
269 | while (!done) |
270 | { | |
271 | done = sim_trace (sd); | |
272 | } | |
7fc5b5ad | 273 | signal (SIGINT, prev_sigint); |
baa7ae6f | 274 | sim_stop_reason (sd, &reason, &sigrc); |
c906108c SS |
275 | } |
276 | else | |
277 | { | |
baa7ae6f | 278 | prev_sigint = signal (SIGINT, cntrl_c); |
781c552e | 279 | sigrc = 0; |
baa7ae6f AC |
280 | sim_resume (sd, 0, sigrc); |
281 | signal (SIGINT, prev_sigint); | |
282 | sim_stop_reason (sd, &reason, &sigrc); | |
c906108c | 283 | } |
baa7ae6f | 284 | #endif |
c906108c SS |
285 | |
286 | if (verbose) | |
287 | sim_info (sd, 0); | |
c906108c SS |
288 | sim_close (sd, 0); |
289 | ||
290 | /* If reason is sim_exited, then sigrc holds the exit code which we want | |
291 | to return. If reason is sim_stopped or sim_signalled, then sigrc holds | |
292 | the signal that the simulator received; we want to return that to | |
293 | indicate failure. */ | |
294 | ||
c906108c SS |
295 | /* Why did we stop? */ |
296 | switch (reason) | |
297 | { | |
298 | case sim_signalled: | |
299 | case sim_stopped: | |
300 | if (sigrc != 0) | |
dbec3bef | 301 | fprintf (stderr, "program stopped with signal %d.\n", sigrc); |
c906108c SS |
302 | break; |
303 | ||
304 | case sim_exited: | |
305 | break; | |
306 | ||
307 | case sim_running: | |
dbec3bef | 308 | case sim_polling: /* These indicate a serious problem. */ |
c906108c SS |
309 | abort (); |
310 | break; | |
311 | ||
312 | } | |
c906108c SS |
313 | |
314 | return sigrc; | |
315 | } | |
316 | ||
317 | static void | |
6efef468 | 318 | usage (int help) |
c906108c | 319 | { |
6efef468 JM |
320 | FILE *stream = help ? stdout : stderr; |
321 | ||
322 | fprintf (stream, "Usage: %s [options] program [program args]\n", myname); | |
323 | fprintf (stream, "Options:\n"); | |
324 | fprintf (stream, "-a args Pass `args' to simulator.\n"); | |
c906108c | 325 | #ifdef SIM_HAVE_SIMCACHE |
6efef468 | 326 | fprintf (stream, "-c size Set simulator cache size to `size'.\n"); |
c906108c | 327 | #endif |
6efef468 | 328 | fprintf (stream, "-m size Set memory size of simulator, in bytes.\n"); |
baa7ae6f | 329 | #ifdef SIM_HAVE_ENVIRONMENT |
6efef468 | 330 | fprintf (stream, "-o Select operating (kernel) environment.\n"); |
baa7ae6f | 331 | #endif |
c906108c | 332 | #ifdef SIM_HAVE_PROFILE |
6efef468 JM |
333 | fprintf (stream, "-p freq Set profiling frequency.\n"); |
334 | fprintf (stream, "-s size Set profiling size.\n"); | |
c906108c | 335 | #endif |
6efef468 JM |
336 | fprintf (stream, "-t Perform instruction tracing.\n"); |
337 | fprintf (stream, " Note: Very few simulators support tracing.\n"); | |
338 | fprintf (stream, "-v Verbose output.\n"); | |
339 | fprintf (stream, "\n"); | |
340 | fprintf (stream, "program args Arguments to pass to simulated program.\n"); | |
341 | fprintf (stream, " Note: Very few simulators support this.\n"); | |
de4112fa | 342 | #ifdef SIM_TARGET_SWITCHES |
6efef468 JM |
343 | fprintf (stream, "\nTarget specific options:\n"); |
344 | sim_target_display_usage (help); | |
de4112fa | 345 | #endif |
6efef468 JM |
346 | |
347 | if (help && REPORT_BUGS_TO[0]) | |
348 | printf ("Report bugs to %s\n", REPORT_BUGS_TO); | |
349 | ||
350 | exit (help ? 0 : 1); | |
351 | } | |
352 | ||
028f6515 | 353 | static void |
6efef468 JM |
354 | print_version () |
355 | { | |
356 | printf ("GNU simulator %s%s\n", PKGVERSION, version); | |
c906108c | 357 | } |