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c906108c | 1 | /* Simulator option handling. |
1d506c26 | 2 | Copyright (C) 1996-2024 Free Software Foundation, Inc. |
c906108c SS |
3 | Contributed by Cygnus Support. |
4 | ||
5 | This file is part of GDB, the GNU debugger. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
4744ac1b JB |
9 | the Free Software Foundation; either version 3 of the License, or |
10 | (at your option) any later version. | |
c906108c SS |
11 | |
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
4744ac1b JB |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
c906108c | 19 | |
6df01ab8 MF |
20 | /* This must come before any other includes. */ |
21 | #include "defs.h" | |
22 | ||
c906108c | 23 | #include <ctype.h> |
b6061d4d | 24 | #include <stdio.h> |
20a8e078 MF |
25 | #include <stdlib.h> |
26 | #include <string.h> | |
35818ade | 27 | #include <unistd.h> |
20a8e078 MF |
28 | |
29 | #include "bfd.h" | |
30 | #include "environ.h" | |
31 | #include "hashtab.h" | |
c906108c | 32 | #include "libiberty.h" |
20a8e078 MF |
33 | |
34 | #include "sim-main.h" | |
c906108c SS |
35 | #include "sim-options.h" |
36 | #include "sim-io.h" | |
37 | #include "sim-assert.h" | |
a542beff | 38 | #include "version.h" |
c906108c SS |
39 | |
40 | /* Add a set of options to the simulator. | |
41 | TABLE is an array of OPTIONS terminated by a NULL `opt.name' entry. | |
42 | This is intended to be called by modules in their `install' handler. */ | |
43 | ||
44 | SIM_RC | |
45 | sim_add_option_table (SIM_DESC sd, sim_cpu *cpu, const OPTION *table) | |
46 | { | |
47 | struct option_list *ol = ((struct option_list *) | |
48 | xmalloc (sizeof (struct option_list))); | |
49 | ||
50 | /* Note: The list is constructed in the reverse order we're called so | |
51 | later calls will override earlier ones (in case that ever happens). | |
52 | This is the intended behaviour. */ | |
53 | ||
54 | if (cpu) | |
55 | { | |
56 | ol->next = CPU_OPTIONS (cpu); | |
57 | ol->options = table; | |
58 | CPU_OPTIONS (cpu) = ol; | |
59 | } | |
60 | else | |
61 | { | |
62 | ol->next = STATE_OPTIONS (sd); | |
63 | ol->options = table; | |
64 | STATE_OPTIONS (sd) = ol; | |
65 | } | |
66 | ||
67 | return SIM_RC_OK; | |
68 | } | |
69 | ||
70 | /* Standard option table. | |
71 | Modules may specify additional ones. | |
72 | The caller of sim_parse_args may also specify additional options | |
73 | by calling sim_add_option_table first. */ | |
74 | ||
75 | static DECLARE_OPTION_HANDLER (standard_option_handler); | |
76 | ||
77 | /* FIXME: We shouldn't print in --help output options that aren't usable. | |
78 | Some fine tuning will be necessary. One can either move less general | |
79 | options to another table or use a HAVE_FOO macro to ifdef out unavailable | |
80 | options. */ | |
81 | ||
82 | /* ??? One might want to conditionally compile out the entries that | |
83 | aren't enabled. There's a distinction, however, between options a | |
84 | simulator can't support and options that haven't been configured in. | |
85 | Certainly options a simulator can't support shouldn't appear in the | |
86 | output of --help. Whether the same thing applies to options that haven't | |
87 | been configured in or not isn't something I can get worked up over. | |
88 | [Note that conditionally compiling them out might simply involve moving | |
89 | the option to another table.] | |
90 | If you decide to conditionally compile them out as well, delete this | |
91 | comment and add a comment saying that that is the rule. */ | |
92 | ||
93 | typedef enum { | |
94 | OPTION_DEBUG_INSN = OPTION_START, | |
95 | OPTION_DEBUG_FILE, | |
96 | OPTION_DO_COMMAND, | |
97 | OPTION_ARCHITECTURE, | |
98 | OPTION_TARGET, | |
adc82fdb | 99 | OPTION_TARGET_INFO, |
c906108c SS |
100 | OPTION_ARCHITECTURE_INFO, |
101 | OPTION_ENVIRONMENT, | |
102 | OPTION_ALIGNMENT, | |
103 | OPTION_VERBOSE, | |
c906108c | 104 | OPTION_ENDIAN, |
c906108c | 105 | OPTION_DEBUG, |
c906108c | 106 | OPTION_HELP, |
a542beff | 107 | OPTION_VERSION, |
43e526b9 JM |
108 | OPTION_LOAD_LMA, |
109 | OPTION_LOAD_VMA, | |
852016f9 MF |
110 | OPTION_SYSROOT, |
111 | OPTION_ARGV0, | |
35818ade MF |
112 | OPTION_ENV_SET, |
113 | OPTION_ENV_UNSET, | |
114 | OPTION_ENV_CLEAR, | |
c906108c SS |
115 | } STANDARD_OPTIONS; |
116 | ||
117 | static const OPTION standard_options[] = | |
118 | { | |
119 | { {"verbose", no_argument, NULL, OPTION_VERBOSE}, | |
120 | 'v', NULL, "Verbose output", | |
21cf617c | 121 | standard_option_handler, NULL }, |
c906108c | 122 | |
c906108c | 123 | { {"endian", required_argument, NULL, OPTION_ENDIAN}, |
21b9b99c | 124 | 'E', "B|big|L|little", "Set endianness", |
21cf617c | 125 | standard_option_handler, NULL }, |
c906108c | 126 | |
c906108c SS |
127 | /* This option isn't supported unless all choices are supported in keeping |
128 | with the goal of not printing in --help output things the simulator can't | |
129 | do [as opposed to things that just haven't been configured in]. */ | |
130 | { {"environment", required_argument, NULL, OPTION_ENVIRONMENT}, | |
131 | '\0', "user|virtual|operating", "Set running environment", | |
132 | standard_option_handler }, | |
c906108c SS |
133 | |
134 | { {"alignment", required_argument, NULL, OPTION_ALIGNMENT}, | |
135 | '\0', "strict|nonstrict|forced", "Set memory access alignment", | |
136 | standard_option_handler }, | |
137 | ||
138 | { {"debug", no_argument, NULL, OPTION_DEBUG}, | |
139 | 'D', NULL, "Print debugging messages", | |
140 | standard_option_handler }, | |
141 | { {"debug-insn", no_argument, NULL, OPTION_DEBUG_INSN}, | |
142 | '\0', NULL, "Print instruction debugging messages", | |
143 | standard_option_handler }, | |
144 | { {"debug-file", required_argument, NULL, OPTION_DEBUG_FILE}, | |
145 | '\0', "FILE NAME", "Specify debugging output file", | |
146 | standard_option_handler }, | |
147 | ||
c906108c SS |
148 | { {"do-command", required_argument, NULL, OPTION_DO_COMMAND}, |
149 | '\0', "COMMAND", ""/*undocumented*/, | |
150 | standard_option_handler }, | |
151 | ||
152 | { {"help", no_argument, NULL, OPTION_HELP}, | |
bf9f8f41 | 153 | 'h', NULL, "Print help information", |
c906108c | 154 | standard_option_handler }, |
a542beff MF |
155 | { {"version", no_argument, NULL, OPTION_VERSION}, |
156 | '\0', NULL, "Print version information", | |
157 | standard_option_handler }, | |
c906108c SS |
158 | |
159 | { {"architecture", required_argument, NULL, OPTION_ARCHITECTURE}, | |
160 | '\0', "MACHINE", "Specify the architecture to use", | |
161 | standard_option_handler }, | |
162 | { {"architecture-info", no_argument, NULL, OPTION_ARCHITECTURE_INFO}, | |
163 | '\0', NULL, "List supported architectures", | |
164 | standard_option_handler }, | |
165 | { {"info-architecture", no_argument, NULL, OPTION_ARCHITECTURE_INFO}, | |
166 | '\0', NULL, NULL, | |
167 | standard_option_handler }, | |
168 | ||
169 | { {"target", required_argument, NULL, OPTION_TARGET}, | |
170 | '\0', "BFDNAME", "Specify the object-code format for the object files", | |
171 | standard_option_handler }, | |
adc82fdb MF |
172 | { {"target-info", no_argument, NULL, OPTION_TARGET_INFO}, |
173 | '\0', NULL, "List supported targets", standard_option_handler }, | |
174 | { {"info-target", no_argument, NULL, OPTION_TARGET_INFO}, | |
175 | '\0', NULL, NULL, standard_option_handler }, | |
c906108c | 176 | |
43e526b9 JM |
177 | { {"load-lma", no_argument, NULL, OPTION_LOAD_LMA}, |
178 | '\0', NULL, | |
43e526b9 | 179 | "Use VMA or LMA addresses when loading image (default LMA)", |
43e526b9 JM |
180 | standard_option_handler, "load-{lma,vma}" }, |
181 | { {"load-vma", no_argument, NULL, OPTION_LOAD_VMA}, | |
182 | '\0', NULL, "", standard_option_handler, "" }, | |
43e526b9 | 183 | |
027e2a04 HPN |
184 | { {"sysroot", required_argument, NULL, OPTION_SYSROOT}, |
185 | '\0', "SYSROOT", | |
186 | "Root for system calls with absolute file-names and cwd at start", | |
21cf617c | 187 | standard_option_handler, NULL }, |
027e2a04 | 188 | |
852016f9 MF |
189 | { {"argv0", required_argument, NULL, OPTION_ARGV0}, |
190 | '\0', "ARGV0", "Set argv[0] to the specified string", | |
191 | standard_option_handler, NULL }, | |
192 | ||
35818ade MF |
193 | { {"env-set", required_argument, NULL, OPTION_ENV_SET}, |
194 | '\0', "VAR=VAL", "Set the variable in the program's environment", | |
195 | standard_option_handler, NULL }, | |
196 | { {"env-unset", required_argument, NULL, OPTION_ENV_UNSET}, | |
197 | '\0', "VAR", "Unset the variable in the program's environment", | |
198 | standard_option_handler, NULL }, | |
199 | { {"env-clear", no_argument, NULL, OPTION_ENV_CLEAR}, | |
200 | '\0', NULL, "Clear the program's environment", | |
201 | standard_option_handler, NULL }, | |
202 | ||
21cf617c | 203 | { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL, NULL } |
c906108c SS |
204 | }; |
205 | ||
35818ade MF |
206 | static SIM_RC |
207 | env_set (SIM_DESC sd, const char *arg) | |
208 | { | |
209 | int i, varlen; | |
210 | char *eq; | |
211 | char **envp; | |
212 | ||
213 | if (STATE_PROG_ENVP (sd) == NULL) | |
214 | STATE_PROG_ENVP (sd) = dupargv (environ); | |
215 | ||
216 | eq = strchr (arg, '='); | |
217 | if (eq == NULL) | |
218 | { | |
219 | sim_io_eprintf (sd, "invalid syntax when setting env var `%s'" | |
220 | ": missing value", arg); | |
221 | return SIM_RC_FAIL; | |
222 | } | |
223 | /* Include the = in the comparison below. */ | |
224 | varlen = eq - arg + 1; | |
225 | ||
226 | /* If we can find an existing variable, replace it. */ | |
227 | envp = STATE_PROG_ENVP (sd); | |
228 | for (i = 0; envp[i]; ++i) | |
229 | { | |
230 | if (strncmp (envp[i], arg, varlen) == 0) | |
231 | { | |
232 | free (envp[i]); | |
233 | envp[i] = xstrdup (arg); | |
234 | break; | |
235 | } | |
236 | } | |
237 | ||
238 | /* If we didn't find the var, add it. */ | |
239 | if (envp[i] == NULL) | |
240 | { | |
241 | envp = xrealloc (envp, (i + 2) * sizeof (char *)); | |
242 | envp[i] = xstrdup (arg); | |
243 | envp[i + 1] = NULL; | |
244 | STATE_PROG_ENVP (sd) = envp; | |
245 | } | |
246 | ||
247 | return SIM_RC_OK; | |
248 | } | |
249 | ||
c906108c SS |
250 | static SIM_RC |
251 | standard_option_handler (SIM_DESC sd, sim_cpu *cpu, int opt, | |
252 | char *arg, int is_command) | |
253 | { | |
254 | int i,n; | |
255 | ||
256 | switch ((STANDARD_OPTIONS) opt) | |
257 | { | |
258 | case OPTION_VERBOSE: | |
259 | STATE_VERBOSE_P (sd) = 1; | |
260 | break; | |
261 | ||
c906108c | 262 | case OPTION_ENDIAN: |
21b9b99c | 263 | if (strcmp (arg, "big") == 0 || strcmp (arg, "B") == 0) |
c906108c | 264 | { |
1ac72f06 | 265 | if (WITH_TARGET_BYTE_ORDER == BFD_ENDIAN_LITTLE) |
c906108c SS |
266 | { |
267 | sim_io_eprintf (sd, "Simulator compiled for little endian only.\n"); | |
268 | return SIM_RC_FAIL; | |
269 | } | |
270 | /* FIXME:wip: Need to set something in STATE_CONFIG. */ | |
1ac72f06 | 271 | current_target_byte_order = BFD_ENDIAN_BIG; |
c906108c | 272 | } |
21b9b99c | 273 | else if (strcmp (arg, "little") == 0 || strcmp (arg, "L") == 0) |
c906108c | 274 | { |
1ac72f06 | 275 | if (WITH_TARGET_BYTE_ORDER == BFD_ENDIAN_BIG) |
c906108c SS |
276 | { |
277 | sim_io_eprintf (sd, "Simulator compiled for big endian only.\n"); | |
278 | return SIM_RC_FAIL; | |
279 | } | |
280 | /* FIXME:wip: Need to set something in STATE_CONFIG. */ | |
1ac72f06 | 281 | current_target_byte_order = BFD_ENDIAN_LITTLE; |
c906108c SS |
282 | } |
283 | else | |
284 | { | |
285 | sim_io_eprintf (sd, "Invalid endian specification `%s'\n", arg); | |
286 | return SIM_RC_FAIL; | |
287 | } | |
288 | break; | |
c906108c SS |
289 | |
290 | case OPTION_ENVIRONMENT: | |
291 | if (strcmp (arg, "user") == 0) | |
292 | STATE_ENVIRONMENT (sd) = USER_ENVIRONMENT; | |
293 | else if (strcmp (arg, "virtual") == 0) | |
294 | STATE_ENVIRONMENT (sd) = VIRTUAL_ENVIRONMENT; | |
295 | else if (strcmp (arg, "operating") == 0) | |
296 | STATE_ENVIRONMENT (sd) = OPERATING_ENVIRONMENT; | |
297 | else | |
298 | { | |
299 | sim_io_eprintf (sd, "Invalid environment specification `%s'\n", arg); | |
300 | return SIM_RC_FAIL; | |
301 | } | |
302 | if (WITH_ENVIRONMENT != ALL_ENVIRONMENT | |
303 | && WITH_ENVIRONMENT != STATE_ENVIRONMENT (sd)) | |
304 | { | |
3dd68605 | 305 | const char *type; |
c906108c SS |
306 | switch (WITH_ENVIRONMENT) |
307 | { | |
308 | case USER_ENVIRONMENT: type = "user"; break; | |
309 | case VIRTUAL_ENVIRONMENT: type = "virtual"; break; | |
310 | case OPERATING_ENVIRONMENT: type = "operating"; break; | |
72042732 | 311 | default: abort (); |
c906108c SS |
312 | } |
313 | sim_io_eprintf (sd, "Simulator compiled for the %s environment only.\n", | |
314 | type); | |
315 | return SIM_RC_FAIL; | |
316 | } | |
317 | break; | |
318 | ||
319 | case OPTION_ALIGNMENT: | |
320 | if (strcmp (arg, "strict") == 0) | |
321 | { | |
322 | if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == STRICT_ALIGNMENT) | |
323 | { | |
324 | current_alignment = STRICT_ALIGNMENT; | |
325 | break; | |
326 | } | |
327 | } | |
328 | else if (strcmp (arg, "nonstrict") == 0) | |
329 | { | |
330 | if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == NONSTRICT_ALIGNMENT) | |
331 | { | |
332 | current_alignment = NONSTRICT_ALIGNMENT; | |
333 | break; | |
334 | } | |
335 | } | |
336 | else if (strcmp (arg, "forced") == 0) | |
337 | { | |
338 | if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == FORCED_ALIGNMENT) | |
339 | { | |
340 | current_alignment = FORCED_ALIGNMENT; | |
341 | break; | |
342 | } | |
343 | } | |
344 | else | |
345 | { | |
346 | sim_io_eprintf (sd, "Invalid alignment specification `%s'\n", arg); | |
347 | return SIM_RC_FAIL; | |
348 | } | |
349 | switch (WITH_ALIGNMENT) | |
350 | { | |
351 | case STRICT_ALIGNMENT: | |
352 | sim_io_eprintf (sd, "Simulator compiled for strict alignment only.\n"); | |
353 | break; | |
354 | case NONSTRICT_ALIGNMENT: | |
355 | sim_io_eprintf (sd, "Simulator compiled for nonstrict alignment only.\n"); | |
356 | break; | |
357 | case FORCED_ALIGNMENT: | |
358 | sim_io_eprintf (sd, "Simulator compiled for forced alignment only.\n"); | |
359 | break; | |
72042732 | 360 | default: abort (); |
c906108c SS |
361 | } |
362 | return SIM_RC_FAIL; | |
363 | ||
364 | case OPTION_DEBUG: | |
365 | if (! WITH_DEBUG) | |
366 | sim_io_eprintf (sd, "Debugging not compiled in, `-D' ignored\n"); | |
367 | else | |
368 | { | |
369 | for (n = 0; n < MAX_NR_PROCESSORS; ++n) | |
370 | for (i = 0; i < MAX_DEBUG_VALUES; ++i) | |
371 | CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[i] = 1; | |
372 | } | |
373 | break; | |
374 | ||
375 | case OPTION_DEBUG_INSN : | |
376 | if (! WITH_DEBUG) | |
377 | sim_io_eprintf (sd, "Debugging not compiled in, `--debug-insn' ignored\n"); | |
378 | else | |
379 | { | |
380 | for (n = 0; n < MAX_NR_PROCESSORS; ++n) | |
381 | CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[DEBUG_INSN_IDX] = 1; | |
382 | } | |
383 | break; | |
384 | ||
385 | case OPTION_DEBUG_FILE : | |
386 | if (! WITH_DEBUG) | |
387 | sim_io_eprintf (sd, "Debugging not compiled in, `--debug-file' ignored\n"); | |
388 | else | |
389 | { | |
390 | FILE *f = fopen (arg, "w"); | |
391 | ||
392 | if (f == NULL) | |
393 | { | |
394 | sim_io_eprintf (sd, "Unable to open debug output file `%s'\n", arg); | |
395 | return SIM_RC_FAIL; | |
396 | } | |
397 | for (n = 0; n < MAX_NR_PROCESSORS; ++n) | |
398 | CPU_DEBUG_FILE (STATE_CPU (sd, n)) = f; | |
399 | } | |
400 | break; | |
401 | ||
c906108c SS |
402 | case OPTION_DO_COMMAND: |
403 | sim_do_command (sd, arg); | |
404 | break; | |
405 | ||
406 | case OPTION_ARCHITECTURE: | |
407 | { | |
408 | const struct bfd_arch_info *ap = bfd_scan_arch (arg); | |
409 | if (ap == NULL) | |
410 | { | |
411 | sim_io_eprintf (sd, "Architecture `%s' unknown\n", arg); | |
412 | return SIM_RC_FAIL; | |
413 | } | |
414 | STATE_ARCHITECTURE (sd) = ap; | |
415 | break; | |
416 | } | |
417 | ||
418 | case OPTION_ARCHITECTURE_INFO: | |
419 | { | |
34b47c38 | 420 | const char **list = bfd_arch_list (); |
c906108c SS |
421 | const char **lp; |
422 | if (list == NULL) | |
423 | abort (); | |
424 | sim_io_printf (sd, "Possible architectures:"); | |
425 | for (lp = list; *lp != NULL; lp++) | |
426 | sim_io_printf (sd, " %s", *lp); | |
427 | sim_io_printf (sd, "\n"); | |
428 | free (list); | |
429 | break; | |
430 | } | |
431 | ||
432 | case OPTION_TARGET: | |
433 | { | |
434 | STATE_TARGET (sd) = xstrdup (arg); | |
435 | break; | |
436 | } | |
437 | ||
adc82fdb MF |
438 | case OPTION_TARGET_INFO: |
439 | { | |
440 | const char **list = bfd_target_list (); | |
441 | const char **lp; | |
442 | if (list == NULL) | |
443 | abort (); | |
444 | sim_io_printf (sd, "Possible targets:"); | |
445 | for (lp = list; *lp != NULL; lp++) | |
446 | sim_io_printf (sd, " %s", *lp); | |
447 | sim_io_printf (sd, "\n"); | |
448 | free (list); | |
449 | break; | |
450 | } | |
451 | ||
43e526b9 JM |
452 | case OPTION_LOAD_LMA: |
453 | { | |
454 | STATE_LOAD_AT_LMA_P (sd) = 1; | |
455 | break; | |
456 | } | |
457 | ||
458 | case OPTION_LOAD_VMA: | |
459 | { | |
460 | STATE_LOAD_AT_LMA_P (sd) = 0; | |
461 | break; | |
462 | } | |
463 | ||
c906108c SS |
464 | case OPTION_HELP: |
465 | sim_print_help (sd, is_command); | |
466 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
467 | exit (0); | |
468 | /* FIXME: 'twould be nice to do something similar if gdb. */ | |
469 | break; | |
027e2a04 | 470 | |
a542beff | 471 | case OPTION_VERSION: |
19b1c385 | 472 | sim_print_version (sd, is_command); |
a542beff MF |
473 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) |
474 | exit (0); | |
475 | break; | |
476 | ||
027e2a04 HPN |
477 | case OPTION_SYSROOT: |
478 | /* Don't leak memory in the odd event that there's lots of | |
440db575 MF |
479 | --sysroot=... options. We treat "" specially since this |
480 | is the statically initialized value and cannot free it. */ | |
481 | if (simulator_sysroot[0] != '\0') | |
027e2a04 | 482 | free (simulator_sysroot); |
440db575 MF |
483 | if (arg[0] != '\0') |
484 | simulator_sysroot = xstrdup (arg); | |
485 | else | |
486 | simulator_sysroot = ""; | |
027e2a04 | 487 | break; |
852016f9 MF |
488 | |
489 | case OPTION_ARGV0: | |
490 | free (STATE_PROG_ARGV0 (sd)); | |
491 | STATE_PROG_ARGV0 (sd) = xstrdup (arg); | |
492 | break; | |
35818ade MF |
493 | |
494 | case OPTION_ENV_SET: | |
495 | return env_set (sd, arg); | |
496 | ||
497 | case OPTION_ENV_UNSET: | |
498 | { | |
ef382e84 | 499 | int varlen; |
35818ade MF |
500 | char **envp; |
501 | ||
502 | if (STATE_PROG_ENVP (sd) == NULL) | |
503 | STATE_PROG_ENVP (sd) = dupargv (environ); | |
504 | ||
505 | varlen = strlen (arg); | |
506 | ||
507 | /* If we can find an existing variable, replace it. */ | |
508 | envp = STATE_PROG_ENVP (sd); | |
509 | for (i = 0; envp[i]; ++i) | |
510 | { | |
511 | char *env = envp[i]; | |
512 | ||
513 | if (strncmp (env, arg, varlen) == 0 | |
514 | && (env[varlen] == '\0' || env[varlen] == '=')) | |
515 | { | |
516 | free (envp[i]); | |
517 | break; | |
518 | } | |
519 | } | |
520 | ||
521 | /* If we clear the var, shift the array down. */ | |
522 | for (; envp[i]; ++i) | |
523 | envp[i] = envp[i + 1]; | |
524 | ||
525 | break; | |
526 | } | |
527 | ||
528 | case OPTION_ENV_CLEAR: | |
529 | freeargv (STATE_PROG_ENVP (sd)); | |
530 | STATE_PROG_ENVP (sd) = xmalloc (sizeof (char *)); | |
531 | STATE_PROG_ENVP (sd)[0] = NULL; | |
532 | break; | |
c906108c SS |
533 | } |
534 | ||
535 | return SIM_RC_OK; | |
536 | } | |
537 | ||
538 | /* Add the standard option list to the simulator. */ | |
539 | ||
540 | SIM_RC | |
541 | standard_install (SIM_DESC sd) | |
542 | { | |
543 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
544 | if (sim_add_option_table (sd, NULL, standard_options) != SIM_RC_OK) | |
545 | return SIM_RC_FAIL; | |
26936211 | 546 | STATE_LOAD_AT_LMA_P (sd) = 1; |
c906108c SS |
547 | return SIM_RC_OK; |
548 | } | |
549 | ||
550 | /* Return non-zero if arg is a duplicate argument. | |
551 | If ARG is NULL, initialize. */ | |
552 | ||
c906108c | 553 | static int |
e377ca52 | 554 | dup_arg_p (const char *arg) |
c906108c | 555 | { |
4478c331 TT |
556 | static htab_t arg_table = NULL; |
557 | void **slot; | |
c906108c SS |
558 | |
559 | if (arg == NULL) | |
560 | { | |
561 | if (arg_table == NULL) | |
4478c331 | 562 | arg_table = htab_create_alloc (10, htab_hash_string, |
65a9835b | 563 | htab_eq_string, NULL, |
4478c331 | 564 | xcalloc, free); |
e4821e2f | 565 | htab_empty (arg_table); |
c906108c SS |
566 | return 0; |
567 | } | |
568 | ||
4478c331 TT |
569 | slot = htab_find_slot (arg_table, arg, INSERT); |
570 | if (*slot != NULL) | |
571 | return 1; | |
572 | *slot = (void *) arg; | |
c906108c SS |
573 | return 0; |
574 | } | |
028f6515 | 575 | |
c906108c SS |
576 | /* Called by sim_open to parse the arguments. */ |
577 | ||
578 | SIM_RC | |
2e3d4f4d | 579 | sim_parse_args (SIM_DESC sd, char * const *argv) |
c906108c | 580 | { |
77cf2ef5 | 581 | int c, i, argc, num_opts, save_opterr; |
c906108c SS |
582 | char *p, *short_options; |
583 | /* The `val' option struct entry is dynamically assigned for options that | |
584 | only come in the long form. ORIG_VAL is used to get the original value | |
585 | back. */ | |
586 | int *orig_val; | |
587 | struct option *lp, *long_options; | |
588 | const struct option_list *ol; | |
589 | const OPTION *opt; | |
590 | OPTION_HANDLER **handlers; | |
591 | sim_cpu **opt_cpu; | |
7c070881 | 592 | SIM_RC result = SIM_RC_OK; |
c906108c SS |
593 | |
594 | /* Count the number of arguments. */ | |
34fed699 | 595 | argc = countargv (argv); |
c906108c SS |
596 | |
597 | /* Count the number of options. */ | |
598 | num_opts = 0; | |
599 | for (ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next) | |
600 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
601 | ++num_opts; | |
602 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
603 | for (ol = CPU_OPTIONS (STATE_CPU (sd, i)); ol != NULL; ol = ol->next) | |
604 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
605 | ++num_opts; | |
606 | ||
607 | /* Initialize duplicate argument checker. */ | |
608 | (void) dup_arg_p (NULL); | |
609 | ||
610 | /* Build the option table for getopt. */ | |
611 | ||
612 | long_options = NZALLOC (struct option, num_opts + 1); | |
613 | lp = long_options; | |
614 | short_options = NZALLOC (char, num_opts * 3 + 1); | |
615 | p = short_options; | |
616 | handlers = NZALLOC (OPTION_HANDLER *, OPTION_START + num_opts); | |
617 | orig_val = NZALLOC (int, OPTION_START + num_opts); | |
618 | opt_cpu = NZALLOC (sim_cpu *, OPTION_START + num_opts); | |
619 | ||
620 | /* Set '+' as first char so argument permutation isn't done. This | |
621 | is done to stop getopt_long returning options that appear after | |
622 | the target program. Such options should be passed unchanged into | |
623 | the program image. */ | |
624 | *p++ = '+'; | |
625 | ||
626 | for (i = OPTION_START, ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next) | |
627 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
628 | { | |
629 | if (dup_arg_p (opt->opt.name)) | |
630 | continue; | |
631 | if (opt->shortopt != 0) | |
632 | { | |
633 | *p++ = opt->shortopt; | |
634 | if (opt->opt.has_arg == required_argument) | |
635 | *p++ = ':'; | |
636 | else if (opt->opt.has_arg == optional_argument) | |
637 | { *p++ = ':'; *p++ = ':'; } | |
638 | handlers[(unsigned char) opt->shortopt] = opt->handler; | |
639 | if (opt->opt.val != 0) | |
640 | orig_val[(unsigned char) opt->shortopt] = opt->opt.val; | |
641 | else | |
642 | orig_val[(unsigned char) opt->shortopt] = opt->shortopt; | |
643 | } | |
644 | if (opt->opt.name != NULL) | |
645 | { | |
646 | *lp = opt->opt; | |
647 | /* Dynamically assign `val' numbers for long options. */ | |
648 | lp->val = i++; | |
649 | handlers[lp->val] = opt->handler; | |
650 | orig_val[lp->val] = opt->opt.val; | |
651 | opt_cpu[lp->val] = NULL; | |
652 | ++lp; | |
653 | } | |
654 | } | |
655 | ||
656 | for (c = 0; c < MAX_NR_PROCESSORS; ++c) | |
657 | { | |
658 | sim_cpu *cpu = STATE_CPU (sd, c); | |
659 | for (ol = CPU_OPTIONS (cpu); ol != NULL; ol = ol->next) | |
660 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
661 | { | |
662 | #if 0 /* Each option is prepended with --<cpuname>- so this greatly cuts down | |
663 | on the need for dup_arg_p checking. Maybe in the future it'll be | |
664 | needed so this is just commented out, and not deleted. */ | |
665 | if (dup_arg_p (opt->opt.name)) | |
666 | continue; | |
667 | #endif | |
668 | /* Don't allow short versions of cpu specific options for now. */ | |
669 | if (opt->shortopt != 0) | |
670 | { | |
671 | sim_io_eprintf (sd, "internal error, short cpu specific option"); | |
7c070881 SC |
672 | result = SIM_RC_FAIL; |
673 | break; | |
c906108c SS |
674 | } |
675 | if (opt->opt.name != NULL) | |
676 | { | |
677 | char *name; | |
678 | *lp = opt->opt; | |
679 | /* Prepend --<cpuname>- to the option. */ | |
39a3ae0a MF |
680 | if (asprintf (&name, "%s-%s", CPU_NAME (cpu), lp->name) < 0) |
681 | { | |
682 | sim_io_eprintf (sd, "internal error, out of memory"); | |
683 | result = SIM_RC_FAIL; | |
684 | break; | |
685 | } | |
c906108c SS |
686 | lp->name = name; |
687 | /* Dynamically assign `val' numbers for long options. */ | |
688 | lp->val = i++; | |
689 | handlers[lp->val] = opt->handler; | |
690 | orig_val[lp->val] = opt->opt.val; | |
691 | opt_cpu[lp->val] = cpu; | |
692 | ++lp; | |
693 | } | |
694 | } | |
695 | } | |
028f6515 | 696 | |
c906108c SS |
697 | /* Terminate the short and long option lists. */ |
698 | *p = 0; | |
699 | lp->name = NULL; | |
700 | ||
701 | /* Ensure getopt is initialized. */ | |
702 | optind = 0; | |
703 | ||
77cf2ef5 MF |
704 | /* Do not lot getopt throw errors for us. But don't mess with the state for |
705 | any callers higher up by saving/restoring it. */ | |
706 | save_opterr = opterr; | |
707 | opterr = 0; | |
708 | ||
c906108c SS |
709 | while (1) |
710 | { | |
711 | int longind, optc; | |
712 | ||
713 | optc = getopt_long (argc, argv, short_options, long_options, &longind); | |
714 | if (optc == -1) | |
715 | { | |
716 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
e8f20a28 | 717 | { |
7770da97 | 718 | char **new_argv; |
852016f9 | 719 | |
7770da97 MF |
720 | free (STATE_PROG_FILE (sd)); |
721 | STATE_PROG_FILE (sd) = NULL; | |
722 | ||
3b293485 MF |
723 | /* Handle any inline variables if -- wasn't used. */ |
724 | if (argv[optind] != NULL && optind > 0 | |
725 | && strcmp (argv[optind - 1], "--") != 0) | |
726 | { | |
727 | while (1) | |
728 | { | |
729 | const char *arg = argv[optind]; | |
730 | ||
731 | if (strchr (arg, '=') == NULL) | |
732 | break; | |
733 | ||
734 | env_set (sd, arg); | |
735 | ++optind; | |
736 | } | |
737 | } | |
738 | ||
7770da97 | 739 | new_argv = dupargv (argv + optind); |
852016f9 MF |
740 | freeargv (STATE_PROG_ARGV (sd)); |
741 | STATE_PROG_ARGV (sd) = new_argv; | |
7770da97 MF |
742 | |
743 | /* Skip steps when argc == 0. */ | |
744 | if (argv[optind] != NULL) | |
745 | { | |
746 | STATE_PROG_FILE (sd) = xstrdup (argv[optind]); | |
747 | ||
748 | if (STATE_PROG_ARGV0 (sd) != NULL) | |
749 | { | |
750 | free (new_argv[0]); | |
751 | new_argv[0] = xstrdup (STATE_PROG_ARGV0 (sd)); | |
752 | } | |
753 | } | |
e8f20a28 | 754 | } |
c906108c SS |
755 | break; |
756 | } | |
757 | if (optc == '?') | |
7c070881 | 758 | { |
77cf2ef5 MF |
759 | /* If getopt rejects a short option, optopt is set to the bad char. |
760 | If it rejects a long option, we have to look at optind. In the | |
761 | short option case, argv could be multiple short options. */ | |
762 | const char *badopt; | |
763 | char optbuf[3]; | |
764 | ||
765 | if (optopt) | |
766 | { | |
767 | sprintf (optbuf, "-%c", optopt); | |
768 | badopt = optbuf; | |
769 | } | |
770 | else | |
771 | badopt = argv[optind - 1]; | |
772 | ||
773 | sim_io_eprintf (sd, | |
8d7d784e | 774 | "%s: unrecognized option '%s'\n" |
77cf2ef5 MF |
775 | "Use --help for a complete list of options.\n", |
776 | STATE_MY_NAME (sd), badopt); | |
777 | ||
7c070881 SC |
778 | result = SIM_RC_FAIL; |
779 | break; | |
780 | } | |
c906108c SS |
781 | |
782 | if ((*handlers[optc]) (sd, opt_cpu[optc], orig_val[optc], optarg, 0/*!is_command*/) == SIM_RC_FAIL) | |
7c070881 SC |
783 | { |
784 | result = SIM_RC_FAIL; | |
785 | break; | |
786 | } | |
c906108c SS |
787 | } |
788 | ||
77cf2ef5 MF |
789 | opterr = save_opterr; |
790 | ||
d79fe0d6 MF |
791 | free (long_options); |
792 | free (short_options); | |
793 | free (handlers); | |
794 | free (opt_cpu); | |
795 | free (orig_val); | |
7c070881 | 796 | return result; |
c906108c SS |
797 | } |
798 | ||
799 | /* Utility of sim_print_help to print a list of option tables. */ | |
800 | ||
801 | static void | |
802 | print_help (SIM_DESC sd, sim_cpu *cpu, const struct option_list *ol, int is_command) | |
803 | { | |
804 | const OPTION *opt; | |
805 | ||
806 | for ( ; ol != NULL; ol = ol->next) | |
807 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
808 | { | |
809 | const int indent = 30; | |
810 | int comma, len; | |
811 | const OPTION *o; | |
812 | ||
813 | if (dup_arg_p (opt->opt.name)) | |
814 | continue; | |
815 | ||
816 | if (opt->doc == NULL) | |
817 | continue; | |
818 | ||
819 | if (opt->doc_name != NULL && opt->doc_name [0] == '\0') | |
820 | continue; | |
821 | ||
822 | sim_io_printf (sd, " "); | |
823 | ||
824 | comma = 0; | |
825 | len = 2; | |
826 | ||
827 | /* list any short options (aliases) for the current OPT */ | |
828 | if (!is_command) | |
829 | { | |
830 | o = opt; | |
831 | do | |
832 | { | |
833 | if (o->shortopt != '\0') | |
834 | { | |
835 | sim_io_printf (sd, "%s-%c", comma ? ", " : "", o->shortopt); | |
836 | len += (comma ? 2 : 0) + 2; | |
837 | if (o->arg != NULL) | |
838 | { | |
839 | if (o->opt.has_arg == optional_argument) | |
840 | { | |
841 | sim_io_printf (sd, "[%s]", o->arg); | |
842 | len += 1 + strlen (o->arg) + 1; | |
843 | } | |
844 | else | |
845 | { | |
846 | sim_io_printf (sd, " %s", o->arg); | |
847 | len += 1 + strlen (o->arg); | |
848 | } | |
849 | } | |
850 | comma = 1; | |
851 | } | |
852 | ++o; | |
853 | } | |
854 | while (OPTION_VALID_P (o) && o->doc == NULL); | |
855 | } | |
028f6515 | 856 | |
c906108c SS |
857 | /* list any long options (aliases) for the current OPT */ |
858 | o = opt; | |
859 | do | |
860 | { | |
861 | const char *name; | |
862 | const char *cpu_prefix = cpu ? CPU_NAME (cpu) : NULL; | |
863 | if (o->doc_name != NULL) | |
864 | name = o->doc_name; | |
865 | else | |
866 | name = o->opt.name; | |
867 | if (name != NULL) | |
868 | { | |
869 | sim_io_printf (sd, "%s%s%s%s%s", | |
870 | comma ? ", " : "", | |
871 | is_command ? "" : "--", | |
872 | cpu ? cpu_prefix : "", | |
873 | cpu ? "-" : "", | |
874 | name); | |
875 | len += ((comma ? 2 : 0) | |
876 | + (is_command ? 0 : 2) | |
877 | + strlen (name)); | |
878 | if (o->arg != NULL) | |
879 | { | |
880 | if (o->opt.has_arg == optional_argument) | |
881 | { | |
c4093a6a | 882 | sim_io_printf (sd, "[=%s]", o->arg); |
c906108c SS |
883 | len += 2 + strlen (o->arg) + 1; |
884 | } | |
885 | else | |
886 | { | |
887 | sim_io_printf (sd, " %s", o->arg); | |
888 | len += 1 + strlen (o->arg); | |
889 | } | |
890 | } | |
891 | comma = 1; | |
892 | } | |
893 | ++o; | |
894 | } | |
895 | while (OPTION_VALID_P (o) && o->doc == NULL); | |
896 | ||
897 | if (len >= indent) | |
898 | { | |
899 | sim_io_printf (sd, "\n%*s", indent, ""); | |
900 | } | |
901 | else | |
902 | sim_io_printf (sd, "%*s", indent - len, ""); | |
903 | ||
904 | /* print the description, word wrap long lines */ | |
905 | { | |
906 | const char *chp = opt->doc; | |
907 | unsigned doc_width = 80 - indent; | |
908 | while (strlen (chp) >= doc_width) /* some slack */ | |
909 | { | |
910 | const char *end = chp + doc_width - 1; | |
911 | while (end > chp && !isspace (*end)) | |
912 | end --; | |
913 | if (end == chp) | |
914 | end = chp + doc_width - 1; | |
e158f0a0 AC |
915 | /* The cast should be ok - its distances between to |
916 | points in a string. */ | |
917 | sim_io_printf (sd, "%.*s\n%*s", (int) (end - chp), chp, indent, | |
918 | ""); | |
c906108c SS |
919 | chp = end; |
920 | while (isspace (*chp) && *chp != '\0') | |
921 | chp++; | |
922 | } | |
923 | sim_io_printf (sd, "%s\n", chp); | |
924 | } | |
925 | } | |
926 | } | |
927 | ||
928 | /* Print help messages for the options. */ | |
929 | ||
930 | void | |
dc416615 | 931 | sim_print_help (SIM_DESC sd, int is_command) |
c906108c SS |
932 | { |
933 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
3b293485 MF |
934 | sim_io_printf (sd, |
935 | "Usage: %s [options] [VAR=VAL|--] program [program args]\n", | |
c906108c SS |
936 | STATE_MY_NAME (sd)); |
937 | ||
938 | /* Initialize duplicate argument checker. */ | |
939 | (void) dup_arg_p (NULL); | |
940 | ||
941 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
942 | sim_io_printf (sd, "Options:\n"); | |
943 | else | |
944 | sim_io_printf (sd, "Commands:\n"); | |
945 | ||
946 | print_help (sd, NULL, STATE_OPTIONS (sd), is_command); | |
947 | sim_io_printf (sd, "\n"); | |
948 | ||
949 | /* Print cpu-specific options. */ | |
950 | { | |
951 | int i; | |
952 | ||
953 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
954 | { | |
955 | sim_cpu *cpu = STATE_CPU (sd, i); | |
956 | if (CPU_OPTIONS (cpu) == NULL) | |
957 | continue; | |
958 | sim_io_printf (sd, "CPU %s specific options:\n", CPU_NAME (cpu)); | |
959 | print_help (sd, cpu, CPU_OPTIONS (cpu), is_command); | |
960 | sim_io_printf (sd, "\n"); | |
961 | } | |
962 | } | |
963 | ||
964 | sim_io_printf (sd, "Note: Depending on the simulator configuration some %ss\n", | |
965 | STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE ? "option" : "command"); | |
966 | sim_io_printf (sd, " may not be applicable\n"); | |
967 | ||
968 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
969 | { | |
970 | sim_io_printf (sd, "\n"); | |
3b293485 MF |
971 | sim_io_printf (sd, |
972 | "VAR=VAL Environment variables to set. " | |
973 | "Ignored if -- is used.\n"); | |
c906108c SS |
974 | sim_io_printf (sd, "program args Arguments to pass to simulated program.\n"); |
975 | sim_io_printf (sd, " Note: Very few simulators support this.\n"); | |
976 | } | |
977 | } | |
978 | ||
19b1c385 MF |
979 | /* Print version information. */ |
980 | ||
981 | void | |
982 | sim_print_version (SIM_DESC sd, int is_command) | |
983 | { | |
984 | sim_io_printf (sd, "GNU simulator %s%s\n", PKGVERSION, version); | |
985 | ||
1d506c26 | 986 | sim_io_printf (sd, "Copyright (C) 2024 Free Software Foundation, Inc.\n"); |
19b1c385 MF |
987 | |
988 | /* Following the copyright is a brief statement that the program is | |
989 | free software, that users are free to copy and change it on | |
990 | certain conditions, that it is covered by the GNU GPL, and that | |
991 | there is no warranty. */ | |
992 | ||
993 | sim_io_printf (sd, "\ | |
994 | License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>\ | |
995 | \nThis is free software: you are free to change and redistribute it.\n\ | |
996 | There is NO WARRANTY, to the extent permitted by law.\n"); | |
babd2ee1 MF |
997 | |
998 | if (!is_command) | |
999 | return; | |
1000 | ||
1001 | sim_io_printf (sd, "This SIM was configured as:\n"); | |
1002 | sim_config_print (sd); | |
1003 | ||
1004 | if (REPORT_BUGS_TO[0]) | |
1005 | { | |
1006 | sim_io_printf (sd, "For bug reporting instructions, please see:\n\ | |
1007 | %s.\n", | |
1008 | REPORT_BUGS_TO); | |
1009 | } | |
1010 | sim_io_printf (sd, "Find the SIM homepage & other documentation resources \ | |
1011 | online at:\n <https://sourceware.org/gdb/wiki/Sim/>.\n"); | |
19b1c385 MF |
1012 | } |
1013 | ||
c906108c SS |
1014 | /* Utility of sim_args_command to find the closest match for a command. |
1015 | Commands that have "-" in them can be specified as separate words. | |
1016 | e.g. sim memory-region 0x800000,0x4000 | |
1017 | or sim memory region 0x800000,0x4000 | |
1018 | If CPU is non-null, use its option table list, otherwise use the main one. | |
1019 | *PARGI is where to start looking in ARGV. It is updated to point past | |
1020 | the found option. */ | |
1021 | ||
1022 | static const OPTION * | |
1023 | find_match (SIM_DESC sd, sim_cpu *cpu, char *argv[], int *pargi) | |
1024 | { | |
1025 | const struct option_list *ol; | |
1026 | const OPTION *opt; | |
1027 | /* most recent option match */ | |
1028 | const OPTION *matching_opt = NULL; | |
1029 | int matching_argi = -1; | |
1030 | ||
1031 | if (cpu) | |
1032 | ol = CPU_OPTIONS (cpu); | |
1033 | else | |
1034 | ol = STATE_OPTIONS (sd); | |
1035 | ||
1036 | /* Skip passed elements specified by *PARGI. */ | |
1037 | argv += *pargi; | |
1038 | ||
1039 | for ( ; ol != NULL; ol = ol->next) | |
1040 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
1041 | { | |
1042 | int argi = 0; | |
1043 | const char *name = opt->opt.name; | |
1044 | if (name == NULL) | |
1045 | continue; | |
1046 | while (argv [argi] != NULL | |
1047 | && strncmp (name, argv [argi], strlen (argv [argi])) == 0) | |
1048 | { | |
1049 | name = &name [strlen (argv[argi])]; | |
1050 | if (name [0] == '-') | |
1051 | { | |
1052 | /* leading match ...<a-b-c>-d-e-f - continue search */ | |
1053 | name ++; /* skip `-' */ | |
1054 | argi ++; | |
1055 | continue; | |
1056 | } | |
1057 | else if (name [0] == '\0') | |
1058 | { | |
1059 | /* exact match ...<a-b-c-d-e-f> - better than before? */ | |
1060 | if (argi > matching_argi) | |
1061 | { | |
1062 | matching_argi = argi; | |
1063 | matching_opt = opt; | |
1064 | } | |
1065 | break; | |
1066 | } | |
1067 | else | |
1068 | break; | |
1069 | } | |
1070 | } | |
1071 | ||
1072 | *pargi = matching_argi; | |
1073 | return matching_opt; | |
1074 | } | |
1075 | ||
56a9aa1d MF |
1076 | static char ** |
1077 | complete_option_list (char **ret, size_t *cnt, const struct option_list *ol, | |
f06dccb0 | 1078 | const char *text, const char *word) |
56a9aa1d MF |
1079 | { |
1080 | const OPTION *opt = NULL; | |
56a9aa1d MF |
1081 | size_t len = strlen (word); |
1082 | ||
1083 | for ( ; ol != NULL; ol = ol->next) | |
1084 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
1085 | { | |
1086 | const char *name = opt->opt.name; | |
1087 | ||
1088 | /* A long option to match against? */ | |
1089 | if (!name) | |
1090 | continue; | |
1091 | ||
1092 | /* Does this option actually match? */ | |
1093 | if (strncmp (name, word, len)) | |
1094 | continue; | |
1095 | ||
1096 | ret = xrealloc (ret, ++*cnt * sizeof (ret[0])); | |
1097 | ret[*cnt - 2] = xstrdup (name); | |
1098 | } | |
1099 | ||
1100 | return ret; | |
1101 | } | |
1102 | ||
1103 | /* All leading text is stored in @text, while the current word being | |
1104 | completed is stored in @word. Trailing text of @word is not. */ | |
5592f70e | 1105 | |
56a9aa1d | 1106 | char ** |
3cb2ab1a | 1107 | sim_complete_command (SIM_DESC sd, const char *text, const char *word) |
56a9aa1d MF |
1108 | { |
1109 | char **ret = NULL; | |
1110 | size_t cnt = 1; | |
1111 | sim_cpu *cpu; | |
1112 | ||
1113 | /* Only complete first word for now. */ | |
1114 | if (text != word) | |
1115 | return ret; | |
1116 | ||
1117 | cpu = STATE_CPU (sd, 0); | |
1118 | if (cpu) | |
1119 | ret = complete_option_list (ret, &cnt, CPU_OPTIONS (cpu), text, word); | |
1120 | ret = complete_option_list (ret, &cnt, STATE_OPTIONS (sd), text, word); | |
1121 | ||
1122 | if (ret) | |
1123 | ret[cnt - 1] = NULL; | |
1124 | return ret; | |
1125 | } | |
1126 | ||
c906108c | 1127 | SIM_RC |
60d847df | 1128 | sim_args_command (SIM_DESC sd, const char *cmd) |
c906108c SS |
1129 | { |
1130 | /* something to do? */ | |
1131 | if (cmd == NULL) | |
109d3db3 | 1132 | return SIM_RC_OK; /* FIXME - perhaps help would be better */ |
028f6515 | 1133 | |
c906108c SS |
1134 | if (cmd [0] == '-') |
1135 | { | |
1136 | /* user specified -<opt> ... form? */ | |
1137 | char **argv = buildargv (cmd); | |
1138 | SIM_RC rc = sim_parse_args (sd, argv); | |
1139 | freeargv (argv); | |
1140 | return rc; | |
1141 | } | |
1142 | else | |
1143 | { | |
1144 | char **argv = buildargv (cmd); | |
1145 | const OPTION *matching_opt = NULL; | |
1146 | int matching_argi; | |
1147 | sim_cpu *cpu; | |
1148 | ||
1149 | if (argv [0] == NULL) | |
c9ba137e CG |
1150 | { |
1151 | freeargv (argv); | |
1152 | return SIM_RC_OK; /* FIXME - perhaps help would be better */ | |
1153 | } | |
c906108c SS |
1154 | |
1155 | /* First check for a cpu selector. */ | |
1156 | { | |
1157 | char *cpu_name = xstrdup (argv[0]); | |
1158 | char *hyphen = strchr (cpu_name, '-'); | |
1159 | if (hyphen) | |
1160 | *hyphen = 0; | |
1161 | cpu = sim_cpu_lookup (sd, cpu_name); | |
1162 | if (cpu) | |
1163 | { | |
1164 | /* If <cpuname>-<command>, point argv[0] at <command>. */ | |
1165 | if (hyphen) | |
1166 | { | |
1167 | matching_argi = 0; | |
1168 | argv[0] += hyphen - cpu_name + 1; | |
1169 | } | |
1170 | else | |
1171 | matching_argi = 1; | |
1172 | matching_opt = find_match (sd, cpu, argv, &matching_argi); | |
1173 | /* If hyphen found restore argv[0]. */ | |
1174 | if (hyphen) | |
1175 | argv[0] -= hyphen - cpu_name + 1; | |
1176 | } | |
1177 | free (cpu_name); | |
1178 | } | |
1179 | ||
1180 | /* If that failed, try the main table. */ | |
1181 | if (matching_opt == NULL) | |
1182 | { | |
1183 | matching_argi = 0; | |
1184 | matching_opt = find_match (sd, NULL, argv, &matching_argi); | |
1185 | } | |
1186 | ||
1187 | if (matching_opt != NULL) | |
1188 | { | |
1189 | switch (matching_opt->opt.has_arg) | |
1190 | { | |
1191 | case no_argument: | |
1192 | if (argv [matching_argi + 1] == NULL) | |
1193 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
1194 | NULL, 1/*is_command*/); | |
1195 | else | |
1196 | sim_io_eprintf (sd, "Command `%s' takes no arguments\n", | |
1197 | matching_opt->opt.name); | |
1198 | break; | |
1199 | case optional_argument: | |
1200 | if (argv [matching_argi + 1] == NULL) | |
1201 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
1202 | NULL, 1/*is_command*/); | |
1203 | else if (argv [matching_argi + 2] == NULL) | |
1204 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
1205 | argv [matching_argi + 1], 1/*is_command*/); | |
1206 | else | |
1207 | sim_io_eprintf (sd, "Command `%s' requires no more than one argument\n", | |
1208 | matching_opt->opt.name); | |
1209 | break; | |
1210 | case required_argument: | |
1211 | if (argv [matching_argi + 1] == NULL) | |
1212 | sim_io_eprintf (sd, "Command `%s' requires an argument\n", | |
1213 | matching_opt->opt.name); | |
1214 | else if (argv [matching_argi + 2] == NULL) | |
1215 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
1216 | argv [matching_argi + 1], 1/*is_command*/); | |
1217 | else | |
1218 | sim_io_eprintf (sd, "Command `%s' requires only one argument\n", | |
1219 | matching_opt->opt.name); | |
1220 | } | |
1221 | freeargv (argv); | |
1222 | return SIM_RC_OK; | |
1223 | } | |
1224 | ||
1225 | freeargv (argv); | |
1226 | } | |
028f6515 | 1227 | |
c906108c SS |
1228 | /* didn't find anything that remotly matched */ |
1229 | return SIM_RC_FAIL; | |
1230 | } |