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, |
9b254dd1 | 3 | 2002, 2003, 2004, 2007, 2008 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" |
c906108c | 52 | |
c906108c SS |
53 | static void usage PARAMS ((void)); |
54 | extern int optind; | |
55 | extern char *optarg; | |
56 | ||
57 | extern host_callback default_callback; | |
58 | ||
59 | static char *myname; | |
60 | ||
c906108c SS |
61 | extern int getopt (); |
62 | ||
7a292a7a | 63 | #ifdef NEED_UI_LOOP_HOOK |
dbec3bef | 64 | /* Gdb foolery. This is only needed for gdb using a gui. */ |
0aaa4a81 | 65 | int (*deprecated_ui_loop_hook) PARAMS ((int signo)); |
7a292a7a SS |
66 | #endif |
67 | ||
c906108c SS |
68 | static SIM_DESC sd; |
69 | ||
70 | static RETSIGTYPE | |
6d358e86 | 71 | cntrl_c (int sig ATTRIBUTE_UNUSED) |
c906108c SS |
72 | { |
73 | if (! sim_stop (sd)) | |
74 | { | |
75 | fprintf (stderr, "Quit!\n"); | |
76 | exit (1); | |
77 | } | |
78 | } | |
79 | ||
80 | int | |
81 | main (ac, av) | |
82 | int ac; | |
83 | char **av; | |
84 | { | |
85 | RETSIGTYPE (*prev_sigint) (); | |
86 | bfd *abfd; | |
87 | int i; | |
88 | int verbose = 0; | |
89 | int trace = 0; | |
baa7ae6f AC |
90 | #ifdef SIM_HAVE_ENVIRONMENT |
91 | int operating_p = 0; | |
92 | #endif | |
c906108c SS |
93 | char *name; |
94 | static char *no_args[4]; | |
95 | char **sim_argv = &no_args[0]; | |
96 | char **prog_args; | |
97 | enum sim_stop reason; | |
98 | int sigrc; | |
99 | ||
100 | myname = av[0] + strlen (av[0]); | |
101 | while (myname > av[0] && myname[-1] != '/') | |
102 | --myname; | |
103 | ||
104 | /* The first element of sim_open's argv is the program name. */ | |
105 | no_args[0] = av[0]; | |
106 | #ifdef SIM_HAVE_BIENDIAN | |
107 | no_args[1] = "-E"; | |
108 | no_args[2] = "set-later"; | |
109 | #endif | |
110 | ||
111 | /* FIXME: This is currently being migrated into sim_open. | |
112 | Simulators that use functions such as sim_size() still require | |
dbec3bef | 113 | this. */ |
c906108c SS |
114 | default_callback.init (&default_callback); |
115 | sim_set_callbacks (&default_callback); | |
116 | ||
de4112fa NC |
117 | #ifdef SIM_TARGET_SWITCHES |
118 | ac = sim_target_parse_command_line (ac, av); | |
119 | #endif | |
120 | ||
c906108c SS |
121 | /* FIXME: This is currently being rewritten to have each simulator |
122 | do all argv processing. */ | |
123 | ||
dbec3bef | 124 | while ((i = getopt (ac, av, "a:c:m:op:s:tv")) != EOF) |
c906108c SS |
125 | switch (i) |
126 | { | |
127 | case 'a': | |
128 | /* FIXME: Temporary hack. */ | |
129 | { | |
130 | int len = strlen (av[0]) + strlen (optarg); | |
131 | char *argbuf = (char *) alloca (len + 2 + 50); | |
132 | sprintf (argbuf, "%s %s", av[0], optarg); | |
133 | #ifdef SIM_HAVE_BIENDIAN | |
134 | /* The desired endianness must be passed to sim_open. | |
135 | The value for "set-later" is set when we know what it is. | |
136 | -E support isn't yet part of the published interface. */ | |
137 | strcat (argbuf, " -E set-later"); | |
138 | #endif | |
139 | sim_argv = buildargv (argbuf); | |
140 | } | |
141 | break; | |
142 | #ifdef SIM_HAVE_SIMCACHE | |
143 | case 'c': | |
144 | sim_set_simcache_size (atoi (optarg)); | |
145 | break; | |
146 | #endif | |
147 | case 'm': | |
148 | /* FIXME: Rename to sim_set_mem_size. */ | |
149 | sim_size (atoi (optarg)); | |
150 | break; | |
baa7ae6f AC |
151 | #ifdef SIM_HAVE_ENVIRONMENT |
152 | case 'o': | |
153 | /* Operating enironment where any signals are delivered to the | |
dbec3bef | 154 | target. */ |
baa7ae6f AC |
155 | operating_p = 1; |
156 | break; | |
d25b1553 | 157 | #endif |
c906108c SS |
158 | #ifdef SIM_HAVE_PROFILE |
159 | case 'p': | |
160 | sim_set_profile (atoi (optarg)); | |
161 | break; | |
162 | case 's': | |
163 | sim_set_profile_size (atoi (optarg)); | |
164 | break; | |
165 | #endif | |
166 | case 't': | |
167 | trace = 1; | |
c906108c SS |
168 | break; |
169 | case 'v': | |
170 | /* Things that are printed with -v are the kinds of things that | |
171 | gcc -v prints. This is not meant to include detailed tracing | |
172 | or debugging information, just summaries. */ | |
173 | verbose = 1; | |
174 | /* sim_set_verbose (1); */ | |
175 | break; | |
176 | /* FIXME: Quick hack, to be replaced by more general facility. */ | |
c906108c SS |
177 | default: |
178 | usage (); | |
179 | } | |
180 | ||
181 | ac -= optind; | |
182 | av += optind; | |
183 | if (ac <= 0) | |
184 | usage (); | |
185 | ||
186 | name = *av; | |
187 | prog_args = av; | |
188 | ||
189 | if (verbose) | |
190 | { | |
191 | printf ("%s %s\n", myname, name); | |
192 | } | |
193 | ||
194 | abfd = bfd_openr (name, 0); | |
dbec3bef | 195 | if (!abfd) |
c906108c | 196 | { |
dbec3bef | 197 | fprintf (stderr, "%s: can't open %s: %s\n", |
c906108c SS |
198 | myname, name, bfd_errmsg (bfd_get_error ())); |
199 | exit (1); | |
200 | } | |
201 | ||
202 | if (!bfd_check_format (abfd, bfd_object)) | |
203 | { | |
204 | fprintf (stderr, "%s: can't load %s: %s\n", | |
205 | myname, name, bfd_errmsg (bfd_get_error ())); | |
206 | exit (1); | |
207 | } | |
208 | ||
209 | #ifdef SIM_HAVE_BIENDIAN | |
210 | /* The endianness must be passed to sim_open because one may wish to | |
211 | examine/set registers before calling sim_load [which is the other | |
212 | place where one can determine endianness]. We previously passed the | |
213 | endianness via global `target_byte_order' but that's not a clean | |
214 | interface. */ | |
215 | for (i = 1; sim_argv[i + 1] != NULL; ++i) | |
216 | continue; | |
217 | if (bfd_big_endian (abfd)) | |
218 | sim_argv[i] = "big"; | |
219 | else | |
220 | sim_argv[i] = "little"; | |
221 | #endif | |
222 | ||
223 | /* Ensure that any run-time initialisation that needs to be | |
dbec3bef | 224 | performed by the simulator can occur. */ |
c906108c SS |
225 | sd = sim_open (SIM_OPEN_STANDALONE, &default_callback, abfd, sim_argv); |
226 | if (sd == 0) | |
227 | exit (1); | |
228 | ||
229 | if (sim_load (sd, name, abfd, 0) == SIM_RC_FAIL) | |
230 | exit (1); | |
231 | ||
232 | if (sim_create_inferior (sd, abfd, prog_args, NULL) == SIM_RC_FAIL) | |
233 | exit (1); | |
234 | ||
baa7ae6f AC |
235 | #ifdef SIM_HAVE_ENVIRONMENT |
236 | /* NOTE: An old simulator supporting the operating environment MUST | |
237 | provide sim_set_trace() and not sim_trace(). That way | |
dbec3bef | 238 | sim_stop_reason() can be used to determine any stop reason. */ |
baa7ae6f AC |
239 | if (trace) |
240 | sim_set_trace (); | |
781c552e | 241 | sigrc = 0; |
baa7ae6f AC |
242 | do |
243 | { | |
244 | prev_sigint = signal (SIGINT, cntrl_c); | |
245 | sim_resume (sd, 0, sigrc); | |
246 | signal (SIGINT, prev_sigint); | |
247 | sim_stop_reason (sd, &reason, &sigrc); | |
248 | } | |
249 | while (operating_p && reason == sim_stopped && sigrc != SIGINT); | |
250 | #else | |
c906108c SS |
251 | if (trace) |
252 | { | |
253 | int done = 0; | |
7fc5b5ad | 254 | prev_sigint = signal (SIGINT, cntrl_c); |
c906108c SS |
255 | while (!done) |
256 | { | |
257 | done = sim_trace (sd); | |
258 | } | |
7fc5b5ad | 259 | signal (SIGINT, prev_sigint); |
baa7ae6f | 260 | sim_stop_reason (sd, &reason, &sigrc); |
c906108c SS |
261 | } |
262 | else | |
263 | { | |
baa7ae6f | 264 | prev_sigint = signal (SIGINT, cntrl_c); |
781c552e | 265 | sigrc = 0; |
baa7ae6f AC |
266 | sim_resume (sd, 0, sigrc); |
267 | signal (SIGINT, prev_sigint); | |
268 | sim_stop_reason (sd, &reason, &sigrc); | |
c906108c | 269 | } |
baa7ae6f | 270 | #endif |
c906108c SS |
271 | |
272 | if (verbose) | |
273 | sim_info (sd, 0); | |
c906108c SS |
274 | sim_close (sd, 0); |
275 | ||
276 | /* If reason is sim_exited, then sigrc holds the exit code which we want | |
277 | to return. If reason is sim_stopped or sim_signalled, then sigrc holds | |
278 | the signal that the simulator received; we want to return that to | |
279 | indicate failure. */ | |
280 | ||
c906108c SS |
281 | /* Why did we stop? */ |
282 | switch (reason) | |
283 | { | |
284 | case sim_signalled: | |
285 | case sim_stopped: | |
286 | if (sigrc != 0) | |
dbec3bef | 287 | fprintf (stderr, "program stopped with signal %d.\n", sigrc); |
c906108c SS |
288 | break; |
289 | ||
290 | case sim_exited: | |
291 | break; | |
292 | ||
293 | case sim_running: | |
dbec3bef | 294 | case sim_polling: /* These indicate a serious problem. */ |
c906108c SS |
295 | abort (); |
296 | break; | |
297 | ||
298 | } | |
c906108c SS |
299 | |
300 | return sigrc; | |
301 | } | |
302 | ||
303 | static void | |
304 | usage () | |
305 | { | |
306 | fprintf (stderr, "Usage: %s [options] program [program args]\n", myname); | |
307 | fprintf (stderr, "Options:\n"); | |
308 | fprintf (stderr, "-a args Pass `args' to simulator.\n"); | |
309 | #ifdef SIM_HAVE_SIMCACHE | |
310 | fprintf (stderr, "-c size Set simulator cache size to `size'.\n"); | |
c906108c SS |
311 | #endif |
312 | fprintf (stderr, "-m size Set memory size of simulator, in bytes.\n"); | |
baa7ae6f AC |
313 | #ifdef SIM_HAVE_ENVIRONMENT |
314 | fprintf (stderr, "-o Select operating (kernel) environment.\n"); | |
315 | #endif | |
c906108c SS |
316 | #ifdef SIM_HAVE_PROFILE |
317 | fprintf (stderr, "-p freq Set profiling frequency.\n"); | |
318 | fprintf (stderr, "-s size Set profiling size.\n"); | |
319 | #endif | |
320 | fprintf (stderr, "-t Perform instruction tracing.\n"); | |
321 | fprintf (stderr, " Note: Very few simulators support tracing.\n"); | |
322 | fprintf (stderr, "-v Verbose output.\n"); | |
323 | fprintf (stderr, "\n"); | |
324 | fprintf (stderr, "program args Arguments to pass to simulated program.\n"); | |
325 | fprintf (stderr, " Note: Very few simulators support this.\n"); | |
de4112fa NC |
326 | #ifdef SIM_TARGET_SWITCHES |
327 | fprintf (stderr, "\nTarget specific options:\n"); | |
328 | sim_target_display_usage (); | |
329 | #endif | |
c906108c SS |
330 | exit (1); |
331 | } |