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c906108c SS |
1 | /* Simulator option handling. |
2 | Copyright (C) 1996, 1997 Free Software Foundation, Inc. | |
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 | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
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 | ||
17 | You should have received a copy of the GNU General Public License along | |
18 | with this program; if not, write to the Free Software Foundation, Inc., | |
19 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #include "sim-main.h" | |
22 | #ifdef HAVE_STRING_H | |
23 | #include <string.h> | |
24 | #else | |
25 | #ifdef HAVE_STRINGS_H | |
26 | #include <strings.h> | |
27 | #endif | |
28 | #endif | |
29 | #ifdef HAVE_STDLIB_H | |
30 | #include <stdlib.h> | |
31 | #endif | |
32 | #include <ctype.h> | |
33 | #include "libiberty.h" | |
34 | #include "sim-options.h" | |
35 | #include "sim-io.h" | |
36 | #include "sim-assert.h" | |
37 | ||
38 | #include "bfd.h" | |
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, | |
99 | OPTION_ARCHITECTURE_INFO, | |
100 | OPTION_ENVIRONMENT, | |
101 | OPTION_ALIGNMENT, | |
102 | OPTION_VERBOSE, | |
103 | #if defined (SIM_HAVE_BIENDIAN) | |
104 | OPTION_ENDIAN, | |
105 | #endif | |
106 | OPTION_DEBUG, | |
107 | #ifdef SIM_HAVE_FLATMEM | |
108 | OPTION_MEM_SIZE, | |
109 | #endif | |
110 | OPTION_HELP, | |
111 | #ifdef SIM_H8300 /* FIXME: Should be movable to h8300 dir. */ | |
112 | OPTION_H8300, | |
113 | #endif | |
43e526b9 JM |
114 | OPTION_LOAD_LMA, |
115 | OPTION_LOAD_VMA, | |
c906108c SS |
116 | } STANDARD_OPTIONS; |
117 | ||
118 | static const OPTION standard_options[] = | |
119 | { | |
120 | { {"verbose", no_argument, NULL, OPTION_VERBOSE}, | |
121 | 'v', NULL, "Verbose output", | |
122 | standard_option_handler }, | |
123 | ||
124 | #if defined (SIM_HAVE_BIENDIAN) /* ??? && WITH_TARGET_BYTE_ORDER == 0 */ | |
125 | { {"endian", required_argument, NULL, OPTION_ENDIAN}, | |
126 | 'E', "big|little", "Set endianness", | |
127 | standard_option_handler }, | |
128 | #endif | |
129 | ||
130 | #ifdef SIM_HAVE_ENVIRONMENT | |
131 | /* This option isn't supported unless all choices are supported in keeping | |
132 | with the goal of not printing in --help output things the simulator can't | |
133 | do [as opposed to things that just haven't been configured in]. */ | |
134 | { {"environment", required_argument, NULL, OPTION_ENVIRONMENT}, | |
135 | '\0', "user|virtual|operating", "Set running environment", | |
136 | standard_option_handler }, | |
137 | #endif | |
138 | ||
139 | { {"alignment", required_argument, NULL, OPTION_ALIGNMENT}, | |
140 | '\0', "strict|nonstrict|forced", "Set memory access alignment", | |
141 | standard_option_handler }, | |
142 | ||
143 | { {"debug", no_argument, NULL, OPTION_DEBUG}, | |
144 | 'D', NULL, "Print debugging messages", | |
145 | standard_option_handler }, | |
146 | { {"debug-insn", no_argument, NULL, OPTION_DEBUG_INSN}, | |
147 | '\0', NULL, "Print instruction debugging messages", | |
148 | standard_option_handler }, | |
149 | { {"debug-file", required_argument, NULL, OPTION_DEBUG_FILE}, | |
150 | '\0', "FILE NAME", "Specify debugging output file", | |
151 | standard_option_handler }, | |
152 | ||
153 | #ifdef SIM_H8300 /* FIXME: Should be movable to h8300 dir. */ | |
154 | { {"h8300h", no_argument, NULL, OPTION_H8300}, | |
155 | 'h', NULL, "Indicate the CPU is h8/300h or h8/300s", | |
156 | standard_option_handler }, | |
157 | #endif | |
158 | ||
159 | #ifdef SIM_HAVE_FLATMEM | |
160 | { {"mem-size", required_argument, NULL, OPTION_MEM_SIZE}, | |
161 | 'm', "MEMORY SIZE", "Specify memory size", | |
162 | standard_option_handler }, | |
163 | #endif | |
164 | ||
165 | { {"do-command", required_argument, NULL, OPTION_DO_COMMAND}, | |
166 | '\0', "COMMAND", ""/*undocumented*/, | |
167 | standard_option_handler }, | |
168 | ||
169 | { {"help", no_argument, NULL, OPTION_HELP}, | |
170 | 'H', NULL, "Print help information", | |
171 | standard_option_handler }, | |
172 | ||
173 | { {"architecture", required_argument, NULL, OPTION_ARCHITECTURE}, | |
174 | '\0', "MACHINE", "Specify the architecture to use", | |
175 | standard_option_handler }, | |
176 | { {"architecture-info", no_argument, NULL, OPTION_ARCHITECTURE_INFO}, | |
177 | '\0', NULL, "List supported architectures", | |
178 | standard_option_handler }, | |
179 | { {"info-architecture", no_argument, NULL, OPTION_ARCHITECTURE_INFO}, | |
180 | '\0', NULL, NULL, | |
181 | standard_option_handler }, | |
182 | ||
183 | { {"target", required_argument, NULL, OPTION_TARGET}, | |
184 | '\0', "BFDNAME", "Specify the object-code format for the object files", | |
185 | standard_option_handler }, | |
186 | ||
43e526b9 JM |
187 | #ifdef SIM_HANDLES_LMA |
188 | { {"load-lma", no_argument, NULL, OPTION_LOAD_LMA}, | |
189 | '\0', NULL, | |
190 | #if SIM_HANDLES_LMA | |
191 | "Use VMA or LMA addresses when loading image (default LMA)", | |
192 | #else | |
193 | "Use VMA or LMA addresses when loading image (default VMA)", | |
194 | #endif | |
195 | standard_option_handler, "load-{lma,vma}" }, | |
196 | { {"load-vma", no_argument, NULL, OPTION_LOAD_VMA}, | |
197 | '\0', NULL, "", standard_option_handler, "" }, | |
198 | #endif | |
199 | ||
c906108c SS |
200 | { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL } |
201 | }; | |
202 | ||
203 | static SIM_RC | |
204 | standard_option_handler (SIM_DESC sd, sim_cpu *cpu, int opt, | |
205 | char *arg, int is_command) | |
206 | { | |
207 | int i,n; | |
208 | ||
209 | switch ((STANDARD_OPTIONS) opt) | |
210 | { | |
211 | case OPTION_VERBOSE: | |
212 | STATE_VERBOSE_P (sd) = 1; | |
213 | break; | |
214 | ||
215 | #ifdef SIM_HAVE_BIENDIAN | |
216 | case OPTION_ENDIAN: | |
217 | if (strcmp (arg, "big") == 0) | |
218 | { | |
219 | if (WITH_TARGET_BYTE_ORDER == LITTLE_ENDIAN) | |
220 | { | |
221 | sim_io_eprintf (sd, "Simulator compiled for little endian only.\n"); | |
222 | return SIM_RC_FAIL; | |
223 | } | |
224 | /* FIXME:wip: Need to set something in STATE_CONFIG. */ | |
225 | current_target_byte_order = BIG_ENDIAN; | |
226 | } | |
227 | else if (strcmp (arg, "little") == 0) | |
228 | { | |
229 | if (WITH_TARGET_BYTE_ORDER == BIG_ENDIAN) | |
230 | { | |
231 | sim_io_eprintf (sd, "Simulator compiled for big endian only.\n"); | |
232 | return SIM_RC_FAIL; | |
233 | } | |
234 | /* FIXME:wip: Need to set something in STATE_CONFIG. */ | |
235 | current_target_byte_order = LITTLE_ENDIAN; | |
236 | } | |
237 | else | |
238 | { | |
239 | sim_io_eprintf (sd, "Invalid endian specification `%s'\n", arg); | |
240 | return SIM_RC_FAIL; | |
241 | } | |
242 | break; | |
243 | #endif | |
244 | ||
245 | case OPTION_ENVIRONMENT: | |
246 | if (strcmp (arg, "user") == 0) | |
247 | STATE_ENVIRONMENT (sd) = USER_ENVIRONMENT; | |
248 | else if (strcmp (arg, "virtual") == 0) | |
249 | STATE_ENVIRONMENT (sd) = VIRTUAL_ENVIRONMENT; | |
250 | else if (strcmp (arg, "operating") == 0) | |
251 | STATE_ENVIRONMENT (sd) = OPERATING_ENVIRONMENT; | |
252 | else | |
253 | { | |
254 | sim_io_eprintf (sd, "Invalid environment specification `%s'\n", arg); | |
255 | return SIM_RC_FAIL; | |
256 | } | |
257 | if (WITH_ENVIRONMENT != ALL_ENVIRONMENT | |
258 | && WITH_ENVIRONMENT != STATE_ENVIRONMENT (sd)) | |
259 | { | |
260 | char *type; | |
261 | switch (WITH_ENVIRONMENT) | |
262 | { | |
263 | case USER_ENVIRONMENT: type = "user"; break; | |
264 | case VIRTUAL_ENVIRONMENT: type = "virtual"; break; | |
265 | case OPERATING_ENVIRONMENT: type = "operating"; break; | |
266 | } | |
267 | sim_io_eprintf (sd, "Simulator compiled for the %s environment only.\n", | |
268 | type); | |
269 | return SIM_RC_FAIL; | |
270 | } | |
271 | break; | |
272 | ||
273 | case OPTION_ALIGNMENT: | |
274 | if (strcmp (arg, "strict") == 0) | |
275 | { | |
276 | if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == STRICT_ALIGNMENT) | |
277 | { | |
278 | current_alignment = STRICT_ALIGNMENT; | |
279 | break; | |
280 | } | |
281 | } | |
282 | else if (strcmp (arg, "nonstrict") == 0) | |
283 | { | |
284 | if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == NONSTRICT_ALIGNMENT) | |
285 | { | |
286 | current_alignment = NONSTRICT_ALIGNMENT; | |
287 | break; | |
288 | } | |
289 | } | |
290 | else if (strcmp (arg, "forced") == 0) | |
291 | { | |
292 | if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == FORCED_ALIGNMENT) | |
293 | { | |
294 | current_alignment = FORCED_ALIGNMENT; | |
295 | break; | |
296 | } | |
297 | } | |
298 | else | |
299 | { | |
300 | sim_io_eprintf (sd, "Invalid alignment specification `%s'\n", arg); | |
301 | return SIM_RC_FAIL; | |
302 | } | |
303 | switch (WITH_ALIGNMENT) | |
304 | { | |
305 | case STRICT_ALIGNMENT: | |
306 | sim_io_eprintf (sd, "Simulator compiled for strict alignment only.\n"); | |
307 | break; | |
308 | case NONSTRICT_ALIGNMENT: | |
309 | sim_io_eprintf (sd, "Simulator compiled for nonstrict alignment only.\n"); | |
310 | break; | |
311 | case FORCED_ALIGNMENT: | |
312 | sim_io_eprintf (sd, "Simulator compiled for forced alignment only.\n"); | |
313 | break; | |
314 | } | |
315 | return SIM_RC_FAIL; | |
316 | ||
317 | case OPTION_DEBUG: | |
318 | if (! WITH_DEBUG) | |
319 | sim_io_eprintf (sd, "Debugging not compiled in, `-D' ignored\n"); | |
320 | else | |
321 | { | |
322 | for (n = 0; n < MAX_NR_PROCESSORS; ++n) | |
323 | for (i = 0; i < MAX_DEBUG_VALUES; ++i) | |
324 | CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[i] = 1; | |
325 | } | |
326 | break; | |
327 | ||
328 | case OPTION_DEBUG_INSN : | |
329 | if (! WITH_DEBUG) | |
330 | sim_io_eprintf (sd, "Debugging not compiled in, `--debug-insn' ignored\n"); | |
331 | else | |
332 | { | |
333 | for (n = 0; n < MAX_NR_PROCESSORS; ++n) | |
334 | CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[DEBUG_INSN_IDX] = 1; | |
335 | } | |
336 | break; | |
337 | ||
338 | case OPTION_DEBUG_FILE : | |
339 | if (! WITH_DEBUG) | |
340 | sim_io_eprintf (sd, "Debugging not compiled in, `--debug-file' ignored\n"); | |
341 | else | |
342 | { | |
343 | FILE *f = fopen (arg, "w"); | |
344 | ||
345 | if (f == NULL) | |
346 | { | |
347 | sim_io_eprintf (sd, "Unable to open debug output file `%s'\n", arg); | |
348 | return SIM_RC_FAIL; | |
349 | } | |
350 | for (n = 0; n < MAX_NR_PROCESSORS; ++n) | |
351 | CPU_DEBUG_FILE (STATE_CPU (sd, n)) = f; | |
352 | } | |
353 | break; | |
354 | ||
355 | #ifdef SIM_H8300 /* FIXME: Can be moved to h8300 dir. */ | |
356 | case OPTION_H8300: | |
357 | set_h8300h (1); | |
358 | break; | |
359 | #endif | |
360 | ||
361 | #ifdef SIM_HAVE_FLATMEM | |
362 | case OPTION_MEM_SIZE: | |
363 | { | |
364 | unsigned long ul = strtol (arg, NULL, 0); | |
365 | /* 16384: some minimal amount */ | |
366 | if (! isdigit (arg[0]) || ul < 16384) | |
367 | { | |
368 | sim_io_eprintf (sd, "Invalid memory size `%s'", arg); | |
369 | return SIM_RC_FAIL; | |
370 | } | |
371 | STATE_MEM_SIZE (sd) = ul; | |
372 | } | |
373 | break; | |
374 | #endif | |
375 | ||
376 | case OPTION_DO_COMMAND: | |
377 | sim_do_command (sd, arg); | |
378 | break; | |
379 | ||
380 | case OPTION_ARCHITECTURE: | |
381 | { | |
382 | const struct bfd_arch_info *ap = bfd_scan_arch (arg); | |
383 | if (ap == NULL) | |
384 | { | |
385 | sim_io_eprintf (sd, "Architecture `%s' unknown\n", arg); | |
386 | return SIM_RC_FAIL; | |
387 | } | |
388 | STATE_ARCHITECTURE (sd) = ap; | |
389 | break; | |
390 | } | |
391 | ||
392 | case OPTION_ARCHITECTURE_INFO: | |
393 | { | |
394 | const char **list = bfd_arch_list(); | |
395 | const char **lp; | |
396 | if (list == NULL) | |
397 | abort (); | |
398 | sim_io_printf (sd, "Possible architectures:"); | |
399 | for (lp = list; *lp != NULL; lp++) | |
400 | sim_io_printf (sd, " %s", *lp); | |
401 | sim_io_printf (sd, "\n"); | |
402 | free (list); | |
403 | break; | |
404 | } | |
405 | ||
406 | case OPTION_TARGET: | |
407 | { | |
408 | STATE_TARGET (sd) = xstrdup (arg); | |
409 | break; | |
410 | } | |
411 | ||
43e526b9 JM |
412 | case OPTION_LOAD_LMA: |
413 | { | |
414 | STATE_LOAD_AT_LMA_P (sd) = 1; | |
415 | break; | |
416 | } | |
417 | ||
418 | case OPTION_LOAD_VMA: | |
419 | { | |
420 | STATE_LOAD_AT_LMA_P (sd) = 0; | |
421 | break; | |
422 | } | |
423 | ||
c906108c SS |
424 | case OPTION_HELP: |
425 | sim_print_help (sd, is_command); | |
426 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
427 | exit (0); | |
428 | /* FIXME: 'twould be nice to do something similar if gdb. */ | |
429 | break; | |
430 | } | |
431 | ||
432 | return SIM_RC_OK; | |
433 | } | |
434 | ||
435 | /* Add the standard option list to the simulator. */ | |
436 | ||
437 | SIM_RC | |
438 | standard_install (SIM_DESC sd) | |
439 | { | |
440 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
441 | if (sim_add_option_table (sd, NULL, standard_options) != SIM_RC_OK) | |
442 | return SIM_RC_FAIL; | |
43e526b9 JM |
443 | #ifdef SIM_HANDLES_LMA |
444 | STATE_LOAD_AT_LMA_P (sd) = SIM_HANDLES_LMA; | |
445 | #endif | |
c906108c SS |
446 | return SIM_RC_OK; |
447 | } | |
448 | ||
449 | /* Return non-zero if arg is a duplicate argument. | |
450 | If ARG is NULL, initialize. */ | |
451 | ||
452 | #define ARG_HASH_SIZE 97 | |
453 | #define ARG_HASH(a) ((256 * (unsigned char) a[0] + (unsigned char) a[1]) % ARG_HASH_SIZE) | |
454 | ||
455 | static int | |
456 | dup_arg_p (arg) | |
457 | char *arg; | |
458 | { | |
459 | int hash; | |
460 | static char **arg_table = NULL; | |
461 | ||
462 | if (arg == NULL) | |
463 | { | |
464 | if (arg_table == NULL) | |
465 | arg_table = (char **) xmalloc (ARG_HASH_SIZE * sizeof (char *)); | |
466 | memset (arg_table, 0, ARG_HASH_SIZE * sizeof (char *)); | |
467 | return 0; | |
468 | } | |
469 | ||
470 | hash = ARG_HASH (arg); | |
471 | while (arg_table[hash] != NULL) | |
472 | { | |
473 | if (strcmp (arg, arg_table[hash]) == 0) | |
474 | return 1; | |
475 | /* We assume there won't be more than ARG_HASH_SIZE arguments so we | |
476 | don't check if the table is full. */ | |
477 | if (++hash == ARG_HASH_SIZE) | |
478 | hash = 0; | |
479 | } | |
480 | arg_table[hash] = arg; | |
481 | return 0; | |
482 | } | |
483 | ||
484 | /* Called by sim_open to parse the arguments. */ | |
485 | ||
486 | SIM_RC | |
487 | sim_parse_args (sd, argv) | |
488 | SIM_DESC sd; | |
489 | char **argv; | |
490 | { | |
491 | int c, i, argc, num_opts; | |
492 | char *p, *short_options; | |
493 | /* The `val' option struct entry is dynamically assigned for options that | |
494 | only come in the long form. ORIG_VAL is used to get the original value | |
495 | back. */ | |
496 | int *orig_val; | |
497 | struct option *lp, *long_options; | |
498 | const struct option_list *ol; | |
499 | const OPTION *opt; | |
500 | OPTION_HANDLER **handlers; | |
501 | sim_cpu **opt_cpu; | |
502 | ||
503 | /* Count the number of arguments. */ | |
504 | for (argc = 0; argv[argc] != NULL; ++argc) | |
505 | continue; | |
506 | ||
507 | /* Count the number of options. */ | |
508 | num_opts = 0; | |
509 | for (ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next) | |
510 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
511 | ++num_opts; | |
512 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
513 | for (ol = CPU_OPTIONS (STATE_CPU (sd, i)); ol != NULL; ol = ol->next) | |
514 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
515 | ++num_opts; | |
516 | ||
517 | /* Initialize duplicate argument checker. */ | |
518 | (void) dup_arg_p (NULL); | |
519 | ||
520 | /* Build the option table for getopt. */ | |
521 | ||
522 | long_options = NZALLOC (struct option, num_opts + 1); | |
523 | lp = long_options; | |
524 | short_options = NZALLOC (char, num_opts * 3 + 1); | |
525 | p = short_options; | |
526 | handlers = NZALLOC (OPTION_HANDLER *, OPTION_START + num_opts); | |
527 | orig_val = NZALLOC (int, OPTION_START + num_opts); | |
528 | opt_cpu = NZALLOC (sim_cpu *, OPTION_START + num_opts); | |
529 | ||
530 | /* Set '+' as first char so argument permutation isn't done. This | |
531 | is done to stop getopt_long returning options that appear after | |
532 | the target program. Such options should be passed unchanged into | |
533 | the program image. */ | |
534 | *p++ = '+'; | |
535 | ||
536 | for (i = OPTION_START, ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next) | |
537 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
538 | { | |
539 | if (dup_arg_p (opt->opt.name)) | |
540 | continue; | |
541 | if (opt->shortopt != 0) | |
542 | { | |
543 | *p++ = opt->shortopt; | |
544 | if (opt->opt.has_arg == required_argument) | |
545 | *p++ = ':'; | |
546 | else if (opt->opt.has_arg == optional_argument) | |
547 | { *p++ = ':'; *p++ = ':'; } | |
548 | handlers[(unsigned char) opt->shortopt] = opt->handler; | |
549 | if (opt->opt.val != 0) | |
550 | orig_val[(unsigned char) opt->shortopt] = opt->opt.val; | |
551 | else | |
552 | orig_val[(unsigned char) opt->shortopt] = opt->shortopt; | |
553 | } | |
554 | if (opt->opt.name != NULL) | |
555 | { | |
556 | *lp = opt->opt; | |
557 | /* Dynamically assign `val' numbers for long options. */ | |
558 | lp->val = i++; | |
559 | handlers[lp->val] = opt->handler; | |
560 | orig_val[lp->val] = opt->opt.val; | |
561 | opt_cpu[lp->val] = NULL; | |
562 | ++lp; | |
563 | } | |
564 | } | |
565 | ||
566 | for (c = 0; c < MAX_NR_PROCESSORS; ++c) | |
567 | { | |
568 | sim_cpu *cpu = STATE_CPU (sd, c); | |
569 | for (ol = CPU_OPTIONS (cpu); ol != NULL; ol = ol->next) | |
570 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
571 | { | |
572 | #if 0 /* Each option is prepended with --<cpuname>- so this greatly cuts down | |
573 | on the need for dup_arg_p checking. Maybe in the future it'll be | |
574 | needed so this is just commented out, and not deleted. */ | |
575 | if (dup_arg_p (opt->opt.name)) | |
576 | continue; | |
577 | #endif | |
578 | /* Don't allow short versions of cpu specific options for now. */ | |
579 | if (opt->shortopt != 0) | |
580 | { | |
581 | sim_io_eprintf (sd, "internal error, short cpu specific option"); | |
582 | return SIM_RC_FAIL; | |
583 | } | |
584 | if (opt->opt.name != NULL) | |
585 | { | |
586 | char *name; | |
587 | *lp = opt->opt; | |
588 | /* Prepend --<cpuname>- to the option. */ | |
589 | asprintf (&name, "%s-%s", CPU_NAME (cpu), lp->name); | |
590 | lp->name = name; | |
591 | /* Dynamically assign `val' numbers for long options. */ | |
592 | lp->val = i++; | |
593 | handlers[lp->val] = opt->handler; | |
594 | orig_val[lp->val] = opt->opt.val; | |
595 | opt_cpu[lp->val] = cpu; | |
596 | ++lp; | |
597 | } | |
598 | } | |
599 | } | |
600 | ||
601 | /* Terminate the short and long option lists. */ | |
602 | *p = 0; | |
603 | lp->name = NULL; | |
604 | ||
605 | /* Ensure getopt is initialized. */ | |
606 | optind = 0; | |
607 | ||
608 | while (1) | |
609 | { | |
610 | int longind, optc; | |
611 | ||
612 | optc = getopt_long (argc, argv, short_options, long_options, &longind); | |
613 | if (optc == -1) | |
614 | { | |
615 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
616 | STATE_PROG_ARGV (sd) = dupargv (argv + optind); | |
617 | break; | |
618 | } | |
619 | if (optc == '?') | |
620 | return SIM_RC_FAIL; | |
621 | ||
622 | if ((*handlers[optc]) (sd, opt_cpu[optc], orig_val[optc], optarg, 0/*!is_command*/) == SIM_RC_FAIL) | |
623 | return SIM_RC_FAIL; | |
624 | } | |
625 | ||
626 | return SIM_RC_OK; | |
627 | } | |
628 | ||
629 | /* Utility of sim_print_help to print a list of option tables. */ | |
630 | ||
631 | static void | |
632 | print_help (SIM_DESC sd, sim_cpu *cpu, const struct option_list *ol, int is_command) | |
633 | { | |
634 | const OPTION *opt; | |
635 | ||
636 | for ( ; ol != NULL; ol = ol->next) | |
637 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
638 | { | |
639 | const int indent = 30; | |
640 | int comma, len; | |
641 | const OPTION *o; | |
642 | ||
643 | if (dup_arg_p (opt->opt.name)) | |
644 | continue; | |
645 | ||
646 | if (opt->doc == NULL) | |
647 | continue; | |
648 | ||
649 | if (opt->doc_name != NULL && opt->doc_name [0] == '\0') | |
650 | continue; | |
651 | ||
652 | sim_io_printf (sd, " "); | |
653 | ||
654 | comma = 0; | |
655 | len = 2; | |
656 | ||
657 | /* list any short options (aliases) for the current OPT */ | |
658 | if (!is_command) | |
659 | { | |
660 | o = opt; | |
661 | do | |
662 | { | |
663 | if (o->shortopt != '\0') | |
664 | { | |
665 | sim_io_printf (sd, "%s-%c", comma ? ", " : "", o->shortopt); | |
666 | len += (comma ? 2 : 0) + 2; | |
667 | if (o->arg != NULL) | |
668 | { | |
669 | if (o->opt.has_arg == optional_argument) | |
670 | { | |
671 | sim_io_printf (sd, "[%s]", o->arg); | |
672 | len += 1 + strlen (o->arg) + 1; | |
673 | } | |
674 | else | |
675 | { | |
676 | sim_io_printf (sd, " %s", o->arg); | |
677 | len += 1 + strlen (o->arg); | |
678 | } | |
679 | } | |
680 | comma = 1; | |
681 | } | |
682 | ++o; | |
683 | } | |
684 | while (OPTION_VALID_P (o) && o->doc == NULL); | |
685 | } | |
686 | ||
687 | /* list any long options (aliases) for the current OPT */ | |
688 | o = opt; | |
689 | do | |
690 | { | |
691 | const char *name; | |
692 | const char *cpu_prefix = cpu ? CPU_NAME (cpu) : NULL; | |
693 | if (o->doc_name != NULL) | |
694 | name = o->doc_name; | |
695 | else | |
696 | name = o->opt.name; | |
697 | if (name != NULL) | |
698 | { | |
699 | sim_io_printf (sd, "%s%s%s%s%s", | |
700 | comma ? ", " : "", | |
701 | is_command ? "" : "--", | |
702 | cpu ? cpu_prefix : "", | |
703 | cpu ? "-" : "", | |
704 | name); | |
705 | len += ((comma ? 2 : 0) | |
706 | + (is_command ? 0 : 2) | |
707 | + strlen (name)); | |
708 | if (o->arg != NULL) | |
709 | { | |
710 | if (o->opt.has_arg == optional_argument) | |
711 | { | |
712 | sim_io_printf (sd, " [%s]", o->arg); | |
713 | len += 2 + strlen (o->arg) + 1; | |
714 | } | |
715 | else | |
716 | { | |
717 | sim_io_printf (sd, " %s", o->arg); | |
718 | len += 1 + strlen (o->arg); | |
719 | } | |
720 | } | |
721 | comma = 1; | |
722 | } | |
723 | ++o; | |
724 | } | |
725 | while (OPTION_VALID_P (o) && o->doc == NULL); | |
726 | ||
727 | if (len >= indent) | |
728 | { | |
729 | sim_io_printf (sd, "\n%*s", indent, ""); | |
730 | } | |
731 | else | |
732 | sim_io_printf (sd, "%*s", indent - len, ""); | |
733 | ||
734 | /* print the description, word wrap long lines */ | |
735 | { | |
736 | const char *chp = opt->doc; | |
737 | unsigned doc_width = 80 - indent; | |
738 | while (strlen (chp) >= doc_width) /* some slack */ | |
739 | { | |
740 | const char *end = chp + doc_width - 1; | |
741 | while (end > chp && !isspace (*end)) | |
742 | end --; | |
743 | if (end == chp) | |
744 | end = chp + doc_width - 1; | |
745 | sim_io_printf (sd, "%.*s\n%*s", end - chp, chp, indent, ""); | |
746 | chp = end; | |
747 | while (isspace (*chp) && *chp != '\0') | |
748 | chp++; | |
749 | } | |
750 | sim_io_printf (sd, "%s\n", chp); | |
751 | } | |
752 | } | |
753 | } | |
754 | ||
755 | /* Print help messages for the options. */ | |
756 | ||
757 | void | |
758 | sim_print_help (sd, is_command) | |
759 | SIM_DESC sd; | |
760 | int is_command; | |
761 | { | |
762 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
763 | sim_io_printf (sd, "Usage: %s [options] program [program args]\n", | |
764 | STATE_MY_NAME (sd)); | |
765 | ||
766 | /* Initialize duplicate argument checker. */ | |
767 | (void) dup_arg_p (NULL); | |
768 | ||
769 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
770 | sim_io_printf (sd, "Options:\n"); | |
771 | else | |
772 | sim_io_printf (sd, "Commands:\n"); | |
773 | ||
774 | print_help (sd, NULL, STATE_OPTIONS (sd), is_command); | |
775 | sim_io_printf (sd, "\n"); | |
776 | ||
777 | /* Print cpu-specific options. */ | |
778 | { | |
779 | int i; | |
780 | ||
781 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
782 | { | |
783 | sim_cpu *cpu = STATE_CPU (sd, i); | |
784 | if (CPU_OPTIONS (cpu) == NULL) | |
785 | continue; | |
786 | sim_io_printf (sd, "CPU %s specific options:\n", CPU_NAME (cpu)); | |
787 | print_help (sd, cpu, CPU_OPTIONS (cpu), is_command); | |
788 | sim_io_printf (sd, "\n"); | |
789 | } | |
790 | } | |
791 | ||
792 | sim_io_printf (sd, "Note: Depending on the simulator configuration some %ss\n", | |
793 | STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE ? "option" : "command"); | |
794 | sim_io_printf (sd, " may not be applicable\n"); | |
795 | ||
796 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
797 | { | |
798 | sim_io_printf (sd, "\n"); | |
799 | sim_io_printf (sd, "program args Arguments to pass to simulated program.\n"); | |
800 | sim_io_printf (sd, " Note: Very few simulators support this.\n"); | |
801 | } | |
802 | } | |
803 | ||
804 | /* Utility of sim_args_command to find the closest match for a command. | |
805 | Commands that have "-" in them can be specified as separate words. | |
806 | e.g. sim memory-region 0x800000,0x4000 | |
807 | or sim memory region 0x800000,0x4000 | |
808 | If CPU is non-null, use its option table list, otherwise use the main one. | |
809 | *PARGI is where to start looking in ARGV. It is updated to point past | |
810 | the found option. */ | |
811 | ||
812 | static const OPTION * | |
813 | find_match (SIM_DESC sd, sim_cpu *cpu, char *argv[], int *pargi) | |
814 | { | |
815 | const struct option_list *ol; | |
816 | const OPTION *opt; | |
817 | /* most recent option match */ | |
818 | const OPTION *matching_opt = NULL; | |
819 | int matching_argi = -1; | |
820 | ||
821 | if (cpu) | |
822 | ol = CPU_OPTIONS (cpu); | |
823 | else | |
824 | ol = STATE_OPTIONS (sd); | |
825 | ||
826 | /* Skip passed elements specified by *PARGI. */ | |
827 | argv += *pargi; | |
828 | ||
829 | for ( ; ol != NULL; ol = ol->next) | |
830 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
831 | { | |
832 | int argi = 0; | |
833 | const char *name = opt->opt.name; | |
834 | if (name == NULL) | |
835 | continue; | |
836 | while (argv [argi] != NULL | |
837 | && strncmp (name, argv [argi], strlen (argv [argi])) == 0) | |
838 | { | |
839 | name = &name [strlen (argv[argi])]; | |
840 | if (name [0] == '-') | |
841 | { | |
842 | /* leading match ...<a-b-c>-d-e-f - continue search */ | |
843 | name ++; /* skip `-' */ | |
844 | argi ++; | |
845 | continue; | |
846 | } | |
847 | else if (name [0] == '\0') | |
848 | { | |
849 | /* exact match ...<a-b-c-d-e-f> - better than before? */ | |
850 | if (argi > matching_argi) | |
851 | { | |
852 | matching_argi = argi; | |
853 | matching_opt = opt; | |
854 | } | |
855 | break; | |
856 | } | |
857 | else | |
858 | break; | |
859 | } | |
860 | } | |
861 | ||
862 | *pargi = matching_argi; | |
863 | return matching_opt; | |
864 | } | |
865 | ||
866 | SIM_RC | |
867 | sim_args_command (SIM_DESC sd, char *cmd) | |
868 | { | |
869 | /* something to do? */ | |
870 | if (cmd == NULL) | |
871 | return SIM_RC_OK; /* FIXME - perhaphs help would be better */ | |
872 | ||
873 | if (cmd [0] == '-') | |
874 | { | |
875 | /* user specified -<opt> ... form? */ | |
876 | char **argv = buildargv (cmd); | |
877 | SIM_RC rc = sim_parse_args (sd, argv); | |
878 | freeargv (argv); | |
879 | return rc; | |
880 | } | |
881 | else | |
882 | { | |
883 | char **argv = buildargv (cmd); | |
884 | const OPTION *matching_opt = NULL; | |
885 | int matching_argi; | |
886 | sim_cpu *cpu; | |
887 | ||
888 | if (argv [0] == NULL) | |
889 | return SIM_RC_OK; /* FIXME - perhaphs help would be better */ | |
890 | ||
891 | /* First check for a cpu selector. */ | |
892 | { | |
893 | char *cpu_name = xstrdup (argv[0]); | |
894 | char *hyphen = strchr (cpu_name, '-'); | |
895 | if (hyphen) | |
896 | *hyphen = 0; | |
897 | cpu = sim_cpu_lookup (sd, cpu_name); | |
898 | if (cpu) | |
899 | { | |
900 | /* If <cpuname>-<command>, point argv[0] at <command>. */ | |
901 | if (hyphen) | |
902 | { | |
903 | matching_argi = 0; | |
904 | argv[0] += hyphen - cpu_name + 1; | |
905 | } | |
906 | else | |
907 | matching_argi = 1; | |
908 | matching_opt = find_match (sd, cpu, argv, &matching_argi); | |
909 | /* If hyphen found restore argv[0]. */ | |
910 | if (hyphen) | |
911 | argv[0] -= hyphen - cpu_name + 1; | |
912 | } | |
913 | free (cpu_name); | |
914 | } | |
915 | ||
916 | /* If that failed, try the main table. */ | |
917 | if (matching_opt == NULL) | |
918 | { | |
919 | matching_argi = 0; | |
920 | matching_opt = find_match (sd, NULL, argv, &matching_argi); | |
921 | } | |
922 | ||
923 | if (matching_opt != NULL) | |
924 | { | |
925 | switch (matching_opt->opt.has_arg) | |
926 | { | |
927 | case no_argument: | |
928 | if (argv [matching_argi + 1] == NULL) | |
929 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
930 | NULL, 1/*is_command*/); | |
931 | else | |
932 | sim_io_eprintf (sd, "Command `%s' takes no arguments\n", | |
933 | matching_opt->opt.name); | |
934 | break; | |
935 | case optional_argument: | |
936 | if (argv [matching_argi + 1] == NULL) | |
937 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
938 | NULL, 1/*is_command*/); | |
939 | else if (argv [matching_argi + 2] == NULL) | |
940 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
941 | argv [matching_argi + 1], 1/*is_command*/); | |
942 | else | |
943 | sim_io_eprintf (sd, "Command `%s' requires no more than one argument\n", | |
944 | matching_opt->opt.name); | |
945 | break; | |
946 | case required_argument: | |
947 | if (argv [matching_argi + 1] == NULL) | |
948 | sim_io_eprintf (sd, "Command `%s' requires an argument\n", | |
949 | matching_opt->opt.name); | |
950 | else if (argv [matching_argi + 2] == NULL) | |
951 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
952 | argv [matching_argi + 1], 1/*is_command*/); | |
953 | else | |
954 | sim_io_eprintf (sd, "Command `%s' requires only one argument\n", | |
955 | matching_opt->opt.name); | |
956 | } | |
957 | freeargv (argv); | |
958 | return SIM_RC_OK; | |
959 | } | |
960 | ||
961 | freeargv (argv); | |
962 | } | |
963 | ||
964 | /* didn't find anything that remotly matched */ | |
965 | return SIM_RC_FAIL; | |
966 | } |