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c906108c | 1 | /* Simulator option handling. |
7b6bb8da | 2 | Copyright (C) 1996, 1997, 2004, 2007, 2008, 2009, 2010, 2011 |
e4d013fc | 3 | Free Software Foundation, Inc. |
c906108c SS |
4 | Contributed by Cygnus Support. |
5 | ||
6 | This file is part of GDB, the GNU debugger. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
4744ac1b JB |
10 | the Free Software Foundation; either version 3 of the License, or |
11 | (at your option) any later version. | |
c906108c SS |
12 | |
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
4744ac1b JB |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
c906108c SS |
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, | |
c906108c | 103 | OPTION_ENDIAN, |
c906108c SS |
104 | OPTION_DEBUG, |
105 | #ifdef SIM_HAVE_FLATMEM | |
106 | OPTION_MEM_SIZE, | |
107 | #endif | |
108 | OPTION_HELP, | |
109 | #ifdef SIM_H8300 /* FIXME: Should be movable to h8300 dir. */ | |
828c9ae6 | 110 | OPTION_H8300H, |
a8cdafbd | 111 | OPTION_H8300S, |
828c9ae6 | 112 | OPTION_H8300SX, |
c906108c | 113 | #endif |
43e526b9 JM |
114 | OPTION_LOAD_LMA, |
115 | OPTION_LOAD_VMA, | |
027e2a04 | 116 | OPTION_SYSROOT |
c906108c SS |
117 | } STANDARD_OPTIONS; |
118 | ||
119 | static const OPTION standard_options[] = | |
120 | { | |
121 | { {"verbose", no_argument, NULL, OPTION_VERBOSE}, | |
122 | 'v', NULL, "Verbose output", | |
21cf617c | 123 | standard_option_handler, NULL }, |
c906108c | 124 | |
c906108c SS |
125 | { {"endian", required_argument, NULL, OPTION_ENDIAN}, |
126 | 'E', "big|little", "Set endianness", | |
21cf617c | 127 | standard_option_handler, NULL }, |
c906108c SS |
128 | |
129 | #ifdef SIM_HAVE_ENVIRONMENT | |
130 | /* This option isn't supported unless all choices are supported in keeping | |
131 | with the goal of not printing in --help output things the simulator can't | |
132 | do [as opposed to things that just haven't been configured in]. */ | |
133 | { {"environment", required_argument, NULL, OPTION_ENVIRONMENT}, | |
134 | '\0', "user|virtual|operating", "Set running environment", | |
135 | standard_option_handler }, | |
136 | #endif | |
137 | ||
138 | { {"alignment", required_argument, NULL, OPTION_ALIGNMENT}, | |
139 | '\0', "strict|nonstrict|forced", "Set memory access alignment", | |
140 | standard_option_handler }, | |
141 | ||
142 | { {"debug", no_argument, NULL, OPTION_DEBUG}, | |
143 | 'D', NULL, "Print debugging messages", | |
144 | standard_option_handler }, | |
145 | { {"debug-insn", no_argument, NULL, OPTION_DEBUG_INSN}, | |
146 | '\0', NULL, "Print instruction debugging messages", | |
147 | standard_option_handler }, | |
148 | { {"debug-file", required_argument, NULL, OPTION_DEBUG_FILE}, | |
149 | '\0', "FILE NAME", "Specify debugging output file", | |
150 | standard_option_handler }, | |
151 | ||
152 | #ifdef SIM_H8300 /* FIXME: Should be movable to h8300 dir. */ | |
828c9ae6 | 153 | { {"h8300h", no_argument, NULL, OPTION_H8300H}, |
a69146da | 154 | 'h', NULL, "Indicate the CPU is H8/300H", |
a8cdafbd AV |
155 | standard_option_handler }, |
156 | { {"h8300s", no_argument, NULL, OPTION_H8300S}, | |
a69146da | 157 | 'S', NULL, "Indicate the CPU is H8S", |
c906108c | 158 | standard_option_handler }, |
828c9ae6 | 159 | { {"h8300sx", no_argument, NULL, OPTION_H8300SX}, |
a69146da | 160 | 'x', NULL, "Indicate the CPU is H8SX", |
828c9ae6 | 161 | standard_option_handler }, |
c906108c SS |
162 | #endif |
163 | ||
164 | #ifdef SIM_HAVE_FLATMEM | |
165 | { {"mem-size", required_argument, NULL, OPTION_MEM_SIZE}, | |
f40f1a01 NC |
166 | 'm', "<size>[in bytes, Kb (k suffix), Mb (m suffix) or Gb (g suffix)]", |
167 | "Specify memory size", standard_option_handler }, | |
c906108c SS |
168 | #endif |
169 | ||
170 | { {"do-command", required_argument, NULL, OPTION_DO_COMMAND}, | |
171 | '\0', "COMMAND", ""/*undocumented*/, | |
172 | standard_option_handler }, | |
173 | ||
174 | { {"help", no_argument, NULL, OPTION_HELP}, | |
175 | 'H', NULL, "Print help information", | |
176 | standard_option_handler }, | |
177 | ||
178 | { {"architecture", required_argument, NULL, OPTION_ARCHITECTURE}, | |
179 | '\0', "MACHINE", "Specify the architecture to use", | |
180 | standard_option_handler }, | |
181 | { {"architecture-info", no_argument, NULL, OPTION_ARCHITECTURE_INFO}, | |
182 | '\0', NULL, "List supported architectures", | |
183 | standard_option_handler }, | |
184 | { {"info-architecture", no_argument, NULL, OPTION_ARCHITECTURE_INFO}, | |
185 | '\0', NULL, NULL, | |
186 | standard_option_handler }, | |
187 | ||
188 | { {"target", required_argument, NULL, OPTION_TARGET}, | |
189 | '\0', "BFDNAME", "Specify the object-code format for the object files", | |
190 | standard_option_handler }, | |
191 | ||
43e526b9 JM |
192 | #ifdef SIM_HANDLES_LMA |
193 | { {"load-lma", no_argument, NULL, OPTION_LOAD_LMA}, | |
194 | '\0', NULL, | |
195 | #if SIM_HANDLES_LMA | |
196 | "Use VMA or LMA addresses when loading image (default LMA)", | |
197 | #else | |
198 | "Use VMA or LMA addresses when loading image (default VMA)", | |
199 | #endif | |
200 | standard_option_handler, "load-{lma,vma}" }, | |
201 | { {"load-vma", no_argument, NULL, OPTION_LOAD_VMA}, | |
202 | '\0', NULL, "", standard_option_handler, "" }, | |
203 | #endif | |
204 | ||
027e2a04 HPN |
205 | { {"sysroot", required_argument, NULL, OPTION_SYSROOT}, |
206 | '\0', "SYSROOT", | |
207 | "Root for system calls with absolute file-names and cwd at start", | |
21cf617c | 208 | standard_option_handler, NULL }, |
027e2a04 | 209 | |
21cf617c | 210 | { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL, NULL } |
c906108c SS |
211 | }; |
212 | ||
213 | static SIM_RC | |
214 | standard_option_handler (SIM_DESC sd, sim_cpu *cpu, int opt, | |
215 | char *arg, int is_command) | |
216 | { | |
217 | int i,n; | |
218 | ||
219 | switch ((STANDARD_OPTIONS) opt) | |
220 | { | |
221 | case OPTION_VERBOSE: | |
222 | STATE_VERBOSE_P (sd) = 1; | |
223 | break; | |
224 | ||
c906108c SS |
225 | case OPTION_ENDIAN: |
226 | if (strcmp (arg, "big") == 0) | |
227 | { | |
228 | if (WITH_TARGET_BYTE_ORDER == LITTLE_ENDIAN) | |
229 | { | |
230 | sim_io_eprintf (sd, "Simulator compiled for little endian only.\n"); | |
231 | return SIM_RC_FAIL; | |
232 | } | |
233 | /* FIXME:wip: Need to set something in STATE_CONFIG. */ | |
234 | current_target_byte_order = BIG_ENDIAN; | |
235 | } | |
236 | else if (strcmp (arg, "little") == 0) | |
237 | { | |
238 | if (WITH_TARGET_BYTE_ORDER == BIG_ENDIAN) | |
239 | { | |
240 | sim_io_eprintf (sd, "Simulator compiled for big endian only.\n"); | |
241 | return SIM_RC_FAIL; | |
242 | } | |
243 | /* FIXME:wip: Need to set something in STATE_CONFIG. */ | |
244 | current_target_byte_order = LITTLE_ENDIAN; | |
245 | } | |
246 | else | |
247 | { | |
248 | sim_io_eprintf (sd, "Invalid endian specification `%s'\n", arg); | |
249 | return SIM_RC_FAIL; | |
250 | } | |
251 | break; | |
c906108c SS |
252 | |
253 | case OPTION_ENVIRONMENT: | |
254 | if (strcmp (arg, "user") == 0) | |
255 | STATE_ENVIRONMENT (sd) = USER_ENVIRONMENT; | |
256 | else if (strcmp (arg, "virtual") == 0) | |
257 | STATE_ENVIRONMENT (sd) = VIRTUAL_ENVIRONMENT; | |
258 | else if (strcmp (arg, "operating") == 0) | |
259 | STATE_ENVIRONMENT (sd) = OPERATING_ENVIRONMENT; | |
260 | else | |
261 | { | |
262 | sim_io_eprintf (sd, "Invalid environment specification `%s'\n", arg); | |
263 | return SIM_RC_FAIL; | |
264 | } | |
265 | if (WITH_ENVIRONMENT != ALL_ENVIRONMENT | |
266 | && WITH_ENVIRONMENT != STATE_ENVIRONMENT (sd)) | |
267 | { | |
3dd68605 | 268 | const char *type; |
c906108c SS |
269 | switch (WITH_ENVIRONMENT) |
270 | { | |
271 | case USER_ENVIRONMENT: type = "user"; break; | |
272 | case VIRTUAL_ENVIRONMENT: type = "virtual"; break; | |
273 | case OPERATING_ENVIRONMENT: type = "operating"; break; | |
274 | } | |
275 | sim_io_eprintf (sd, "Simulator compiled for the %s environment only.\n", | |
276 | type); | |
277 | return SIM_RC_FAIL; | |
278 | } | |
279 | break; | |
280 | ||
281 | case OPTION_ALIGNMENT: | |
282 | if (strcmp (arg, "strict") == 0) | |
283 | { | |
284 | if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == STRICT_ALIGNMENT) | |
285 | { | |
286 | current_alignment = STRICT_ALIGNMENT; | |
287 | break; | |
288 | } | |
289 | } | |
290 | else if (strcmp (arg, "nonstrict") == 0) | |
291 | { | |
292 | if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == NONSTRICT_ALIGNMENT) | |
293 | { | |
294 | current_alignment = NONSTRICT_ALIGNMENT; | |
295 | break; | |
296 | } | |
297 | } | |
298 | else if (strcmp (arg, "forced") == 0) | |
299 | { | |
300 | if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == FORCED_ALIGNMENT) | |
301 | { | |
302 | current_alignment = FORCED_ALIGNMENT; | |
303 | break; | |
304 | } | |
305 | } | |
306 | else | |
307 | { | |
308 | sim_io_eprintf (sd, "Invalid alignment specification `%s'\n", arg); | |
309 | return SIM_RC_FAIL; | |
310 | } | |
311 | switch (WITH_ALIGNMENT) | |
312 | { | |
313 | case STRICT_ALIGNMENT: | |
314 | sim_io_eprintf (sd, "Simulator compiled for strict alignment only.\n"); | |
315 | break; | |
316 | case NONSTRICT_ALIGNMENT: | |
317 | sim_io_eprintf (sd, "Simulator compiled for nonstrict alignment only.\n"); | |
318 | break; | |
319 | case FORCED_ALIGNMENT: | |
320 | sim_io_eprintf (sd, "Simulator compiled for forced alignment only.\n"); | |
321 | break; | |
322 | } | |
323 | return SIM_RC_FAIL; | |
324 | ||
325 | case OPTION_DEBUG: | |
326 | if (! WITH_DEBUG) | |
327 | sim_io_eprintf (sd, "Debugging not compiled in, `-D' ignored\n"); | |
328 | else | |
329 | { | |
330 | for (n = 0; n < MAX_NR_PROCESSORS; ++n) | |
331 | for (i = 0; i < MAX_DEBUG_VALUES; ++i) | |
332 | CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[i] = 1; | |
333 | } | |
334 | break; | |
335 | ||
336 | case OPTION_DEBUG_INSN : | |
337 | if (! WITH_DEBUG) | |
338 | sim_io_eprintf (sd, "Debugging not compiled in, `--debug-insn' ignored\n"); | |
339 | else | |
340 | { | |
341 | for (n = 0; n < MAX_NR_PROCESSORS; ++n) | |
342 | CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[DEBUG_INSN_IDX] = 1; | |
343 | } | |
344 | break; | |
345 | ||
346 | case OPTION_DEBUG_FILE : | |
347 | if (! WITH_DEBUG) | |
348 | sim_io_eprintf (sd, "Debugging not compiled in, `--debug-file' ignored\n"); | |
349 | else | |
350 | { | |
351 | FILE *f = fopen (arg, "w"); | |
352 | ||
353 | if (f == NULL) | |
354 | { | |
355 | sim_io_eprintf (sd, "Unable to open debug output file `%s'\n", arg); | |
356 | return SIM_RC_FAIL; | |
357 | } | |
358 | for (n = 0; n < MAX_NR_PROCESSORS; ++n) | |
359 | CPU_DEBUG_FILE (STATE_CPU (sd, n)) = f; | |
360 | } | |
361 | break; | |
362 | ||
363 | #ifdef SIM_H8300 /* FIXME: Can be moved to h8300 dir. */ | |
828c9ae6 MS |
364 | case OPTION_H8300H: |
365 | set_h8300h (bfd_mach_h8300h); | |
a8cdafbd AV |
366 | break; |
367 | case OPTION_H8300S: | |
828c9ae6 MS |
368 | set_h8300h (bfd_mach_h8300s); |
369 | break; | |
370 | case OPTION_H8300SX: | |
371 | set_h8300h (bfd_mach_h8300sx); | |
c906108c SS |
372 | break; |
373 | #endif | |
374 | ||
375 | #ifdef SIM_HAVE_FLATMEM | |
376 | case OPTION_MEM_SIZE: | |
377 | { | |
f40f1a01 NC |
378 | char * endp; |
379 | unsigned long ul = strtol (arg, &endp, 0); | |
380 | ||
381 | switch (* endp) | |
382 | { | |
383 | case 'k': case 'K': size <<= 10; break; | |
384 | case 'm': case 'M': size <<= 20; break; | |
385 | case 'g': case 'G': size <<= 30; break; | |
386 | case ' ': case '\0': case '\t': break; | |
387 | default: | |
388 | if (ul > 0) | |
389 | sim_io_eprintf (sd, "Ignoring strange character at end of memory size: %c\n", * endp); | |
390 | break; | |
391 | } | |
392 | ||
c906108c SS |
393 | /* 16384: some minimal amount */ |
394 | if (! isdigit (arg[0]) || ul < 16384) | |
395 | { | |
396 | sim_io_eprintf (sd, "Invalid memory size `%s'", arg); | |
397 | return SIM_RC_FAIL; | |
398 | } | |
399 | STATE_MEM_SIZE (sd) = ul; | |
400 | } | |
401 | break; | |
402 | #endif | |
403 | ||
404 | case OPTION_DO_COMMAND: | |
405 | sim_do_command (sd, arg); | |
406 | break; | |
407 | ||
408 | case OPTION_ARCHITECTURE: | |
409 | { | |
410 | const struct bfd_arch_info *ap = bfd_scan_arch (arg); | |
411 | if (ap == NULL) | |
412 | { | |
413 | sim_io_eprintf (sd, "Architecture `%s' unknown\n", arg); | |
414 | return SIM_RC_FAIL; | |
415 | } | |
416 | STATE_ARCHITECTURE (sd) = ap; | |
417 | break; | |
418 | } | |
419 | ||
420 | case OPTION_ARCHITECTURE_INFO: | |
421 | { | |
422 | const char **list = bfd_arch_list(); | |
423 | const char **lp; | |
424 | if (list == NULL) | |
425 | abort (); | |
426 | sim_io_printf (sd, "Possible architectures:"); | |
427 | for (lp = list; *lp != NULL; lp++) | |
428 | sim_io_printf (sd, " %s", *lp); | |
429 | sim_io_printf (sd, "\n"); | |
430 | free (list); | |
431 | break; | |
432 | } | |
433 | ||
434 | case OPTION_TARGET: | |
435 | { | |
436 | STATE_TARGET (sd) = xstrdup (arg); | |
437 | break; | |
438 | } | |
439 | ||
43e526b9 JM |
440 | case OPTION_LOAD_LMA: |
441 | { | |
442 | STATE_LOAD_AT_LMA_P (sd) = 1; | |
443 | break; | |
444 | } | |
445 | ||
446 | case OPTION_LOAD_VMA: | |
447 | { | |
448 | STATE_LOAD_AT_LMA_P (sd) = 0; | |
449 | break; | |
450 | } | |
451 | ||
c906108c SS |
452 | case OPTION_HELP: |
453 | sim_print_help (sd, is_command); | |
454 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
455 | exit (0); | |
456 | /* FIXME: 'twould be nice to do something similar if gdb. */ | |
457 | break; | |
027e2a04 HPN |
458 | |
459 | case OPTION_SYSROOT: | |
460 | /* Don't leak memory in the odd event that there's lots of | |
461 | --sysroot=... options. */ | |
462 | if (simulator_sysroot[0] != '\0' && arg[0] != '\0') | |
463 | free (simulator_sysroot); | |
464 | simulator_sysroot = xstrdup (arg); | |
465 | break; | |
c906108c SS |
466 | } |
467 | ||
468 | return SIM_RC_OK; | |
469 | } | |
470 | ||
471 | /* Add the standard option list to the simulator. */ | |
472 | ||
473 | SIM_RC | |
474 | standard_install (SIM_DESC sd) | |
475 | { | |
476 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
477 | if (sim_add_option_table (sd, NULL, standard_options) != SIM_RC_OK) | |
478 | return SIM_RC_FAIL; | |
43e526b9 JM |
479 | #ifdef SIM_HANDLES_LMA |
480 | STATE_LOAD_AT_LMA_P (sd) = SIM_HANDLES_LMA; | |
481 | #endif | |
c906108c SS |
482 | return SIM_RC_OK; |
483 | } | |
484 | ||
485 | /* Return non-zero if arg is a duplicate argument. | |
486 | If ARG is NULL, initialize. */ | |
487 | ||
488 | #define ARG_HASH_SIZE 97 | |
489 | #define ARG_HASH(a) ((256 * (unsigned char) a[0] + (unsigned char) a[1]) % ARG_HASH_SIZE) | |
490 | ||
491 | static int | |
e377ca52 | 492 | dup_arg_p (const char *arg) |
c906108c SS |
493 | { |
494 | int hash; | |
e377ca52 | 495 | static const char **arg_table = NULL; |
c906108c SS |
496 | |
497 | if (arg == NULL) | |
498 | { | |
499 | if (arg_table == NULL) | |
e377ca52 | 500 | arg_table = (const char **) xmalloc (ARG_HASH_SIZE * sizeof (char *)); |
c906108c SS |
501 | memset (arg_table, 0, ARG_HASH_SIZE * sizeof (char *)); |
502 | return 0; | |
503 | } | |
504 | ||
505 | hash = ARG_HASH (arg); | |
506 | while (arg_table[hash] != NULL) | |
507 | { | |
508 | if (strcmp (arg, arg_table[hash]) == 0) | |
509 | return 1; | |
510 | /* We assume there won't be more than ARG_HASH_SIZE arguments so we | |
511 | don't check if the table is full. */ | |
512 | if (++hash == ARG_HASH_SIZE) | |
513 | hash = 0; | |
514 | } | |
515 | arg_table[hash] = arg; | |
516 | return 0; | |
517 | } | |
028f6515 | 518 | |
c906108c SS |
519 | /* Called by sim_open to parse the arguments. */ |
520 | ||
521 | SIM_RC | |
dc416615 | 522 | sim_parse_args (SIM_DESC sd, char **argv) |
c906108c SS |
523 | { |
524 | int c, i, argc, num_opts; | |
525 | char *p, *short_options; | |
526 | /* The `val' option struct entry is dynamically assigned for options that | |
527 | only come in the long form. ORIG_VAL is used to get the original value | |
528 | back. */ | |
529 | int *orig_val; | |
530 | struct option *lp, *long_options; | |
531 | const struct option_list *ol; | |
532 | const OPTION *opt; | |
533 | OPTION_HANDLER **handlers; | |
534 | sim_cpu **opt_cpu; | |
7c070881 | 535 | SIM_RC result = SIM_RC_OK; |
c906108c SS |
536 | |
537 | /* Count the number of arguments. */ | |
538 | for (argc = 0; argv[argc] != NULL; ++argc) | |
539 | continue; | |
540 | ||
541 | /* Count the number of options. */ | |
542 | num_opts = 0; | |
543 | for (ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next) | |
544 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
545 | ++num_opts; | |
546 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
547 | for (ol = CPU_OPTIONS (STATE_CPU (sd, i)); ol != NULL; ol = ol->next) | |
548 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
549 | ++num_opts; | |
550 | ||
551 | /* Initialize duplicate argument checker. */ | |
552 | (void) dup_arg_p (NULL); | |
553 | ||
554 | /* Build the option table for getopt. */ | |
555 | ||
556 | long_options = NZALLOC (struct option, num_opts + 1); | |
557 | lp = long_options; | |
558 | short_options = NZALLOC (char, num_opts * 3 + 1); | |
559 | p = short_options; | |
560 | handlers = NZALLOC (OPTION_HANDLER *, OPTION_START + num_opts); | |
561 | orig_val = NZALLOC (int, OPTION_START + num_opts); | |
562 | opt_cpu = NZALLOC (sim_cpu *, OPTION_START + num_opts); | |
563 | ||
564 | /* Set '+' as first char so argument permutation isn't done. This | |
565 | is done to stop getopt_long returning options that appear after | |
566 | the target program. Such options should be passed unchanged into | |
567 | the program image. */ | |
568 | *p++ = '+'; | |
569 | ||
570 | for (i = OPTION_START, ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next) | |
571 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
572 | { | |
573 | if (dup_arg_p (opt->opt.name)) | |
574 | continue; | |
575 | if (opt->shortopt != 0) | |
576 | { | |
577 | *p++ = opt->shortopt; | |
578 | if (opt->opt.has_arg == required_argument) | |
579 | *p++ = ':'; | |
580 | else if (opt->opt.has_arg == optional_argument) | |
581 | { *p++ = ':'; *p++ = ':'; } | |
582 | handlers[(unsigned char) opt->shortopt] = opt->handler; | |
583 | if (opt->opt.val != 0) | |
584 | orig_val[(unsigned char) opt->shortopt] = opt->opt.val; | |
585 | else | |
586 | orig_val[(unsigned char) opt->shortopt] = opt->shortopt; | |
587 | } | |
588 | if (opt->opt.name != NULL) | |
589 | { | |
590 | *lp = opt->opt; | |
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] = NULL; | |
596 | ++lp; | |
597 | } | |
598 | } | |
599 | ||
600 | for (c = 0; c < MAX_NR_PROCESSORS; ++c) | |
601 | { | |
602 | sim_cpu *cpu = STATE_CPU (sd, c); | |
603 | for (ol = CPU_OPTIONS (cpu); ol != NULL; ol = ol->next) | |
604 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
605 | { | |
606 | #if 0 /* Each option is prepended with --<cpuname>- so this greatly cuts down | |
607 | on the need for dup_arg_p checking. Maybe in the future it'll be | |
608 | needed so this is just commented out, and not deleted. */ | |
609 | if (dup_arg_p (opt->opt.name)) | |
610 | continue; | |
611 | #endif | |
612 | /* Don't allow short versions of cpu specific options for now. */ | |
613 | if (opt->shortopt != 0) | |
614 | { | |
615 | sim_io_eprintf (sd, "internal error, short cpu specific option"); | |
7c070881 SC |
616 | result = SIM_RC_FAIL; |
617 | break; | |
c906108c SS |
618 | } |
619 | if (opt->opt.name != NULL) | |
620 | { | |
621 | char *name; | |
622 | *lp = opt->opt; | |
623 | /* Prepend --<cpuname>- to the option. */ | |
39a3ae0a MF |
624 | if (asprintf (&name, "%s-%s", CPU_NAME (cpu), lp->name) < 0) |
625 | { | |
626 | sim_io_eprintf (sd, "internal error, out of memory"); | |
627 | result = SIM_RC_FAIL; | |
628 | break; | |
629 | } | |
c906108c SS |
630 | lp->name = name; |
631 | /* Dynamically assign `val' numbers for long options. */ | |
632 | lp->val = i++; | |
633 | handlers[lp->val] = opt->handler; | |
634 | orig_val[lp->val] = opt->opt.val; | |
635 | opt_cpu[lp->val] = cpu; | |
636 | ++lp; | |
637 | } | |
638 | } | |
639 | } | |
028f6515 | 640 | |
c906108c SS |
641 | /* Terminate the short and long option lists. */ |
642 | *p = 0; | |
643 | lp->name = NULL; | |
644 | ||
645 | /* Ensure getopt is initialized. */ | |
646 | optind = 0; | |
647 | ||
648 | while (1) | |
649 | { | |
650 | int longind, optc; | |
651 | ||
652 | optc = getopt_long (argc, argv, short_options, long_options, &longind); | |
653 | if (optc == -1) | |
654 | { | |
655 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
656 | STATE_PROG_ARGV (sd) = dupargv (argv + optind); | |
657 | break; | |
658 | } | |
659 | if (optc == '?') | |
7c070881 SC |
660 | { |
661 | result = SIM_RC_FAIL; | |
662 | break; | |
663 | } | |
c906108c SS |
664 | |
665 | if ((*handlers[optc]) (sd, opt_cpu[optc], orig_val[optc], optarg, 0/*!is_command*/) == SIM_RC_FAIL) | |
7c070881 SC |
666 | { |
667 | result = SIM_RC_FAIL; | |
668 | break; | |
669 | } | |
c906108c SS |
670 | } |
671 | ||
d79fe0d6 MF |
672 | free (long_options); |
673 | free (short_options); | |
674 | free (handlers); | |
675 | free (opt_cpu); | |
676 | free (orig_val); | |
7c070881 | 677 | return result; |
c906108c SS |
678 | } |
679 | ||
680 | /* Utility of sim_print_help to print a list of option tables. */ | |
681 | ||
682 | static void | |
683 | print_help (SIM_DESC sd, sim_cpu *cpu, const struct option_list *ol, int is_command) | |
684 | { | |
685 | const OPTION *opt; | |
686 | ||
687 | for ( ; ol != NULL; ol = ol->next) | |
688 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
689 | { | |
690 | const int indent = 30; | |
691 | int comma, len; | |
692 | const OPTION *o; | |
693 | ||
694 | if (dup_arg_p (opt->opt.name)) | |
695 | continue; | |
696 | ||
697 | if (opt->doc == NULL) | |
698 | continue; | |
699 | ||
700 | if (opt->doc_name != NULL && opt->doc_name [0] == '\0') | |
701 | continue; | |
702 | ||
703 | sim_io_printf (sd, " "); | |
704 | ||
705 | comma = 0; | |
706 | len = 2; | |
707 | ||
708 | /* list any short options (aliases) for the current OPT */ | |
709 | if (!is_command) | |
710 | { | |
711 | o = opt; | |
712 | do | |
713 | { | |
714 | if (o->shortopt != '\0') | |
715 | { | |
716 | sim_io_printf (sd, "%s-%c", comma ? ", " : "", o->shortopt); | |
717 | len += (comma ? 2 : 0) + 2; | |
718 | if (o->arg != NULL) | |
719 | { | |
720 | if (o->opt.has_arg == optional_argument) | |
721 | { | |
722 | sim_io_printf (sd, "[%s]", o->arg); | |
723 | len += 1 + strlen (o->arg) + 1; | |
724 | } | |
725 | else | |
726 | { | |
727 | sim_io_printf (sd, " %s", o->arg); | |
728 | len += 1 + strlen (o->arg); | |
729 | } | |
730 | } | |
731 | comma = 1; | |
732 | } | |
733 | ++o; | |
734 | } | |
735 | while (OPTION_VALID_P (o) && o->doc == NULL); | |
736 | } | |
028f6515 | 737 | |
c906108c SS |
738 | /* list any long options (aliases) for the current OPT */ |
739 | o = opt; | |
740 | do | |
741 | { | |
742 | const char *name; | |
743 | const char *cpu_prefix = cpu ? CPU_NAME (cpu) : NULL; | |
744 | if (o->doc_name != NULL) | |
745 | name = o->doc_name; | |
746 | else | |
747 | name = o->opt.name; | |
748 | if (name != NULL) | |
749 | { | |
750 | sim_io_printf (sd, "%s%s%s%s%s", | |
751 | comma ? ", " : "", | |
752 | is_command ? "" : "--", | |
753 | cpu ? cpu_prefix : "", | |
754 | cpu ? "-" : "", | |
755 | name); | |
756 | len += ((comma ? 2 : 0) | |
757 | + (is_command ? 0 : 2) | |
758 | + strlen (name)); | |
759 | if (o->arg != NULL) | |
760 | { | |
761 | if (o->opt.has_arg == optional_argument) | |
762 | { | |
c4093a6a | 763 | sim_io_printf (sd, "[=%s]", o->arg); |
c906108c SS |
764 | len += 2 + strlen (o->arg) + 1; |
765 | } | |
766 | else | |
767 | { | |
768 | sim_io_printf (sd, " %s", o->arg); | |
769 | len += 1 + strlen (o->arg); | |
770 | } | |
771 | } | |
772 | comma = 1; | |
773 | } | |
774 | ++o; | |
775 | } | |
776 | while (OPTION_VALID_P (o) && o->doc == NULL); | |
777 | ||
778 | if (len >= indent) | |
779 | { | |
780 | sim_io_printf (sd, "\n%*s", indent, ""); | |
781 | } | |
782 | else | |
783 | sim_io_printf (sd, "%*s", indent - len, ""); | |
784 | ||
785 | /* print the description, word wrap long lines */ | |
786 | { | |
787 | const char *chp = opt->doc; | |
788 | unsigned doc_width = 80 - indent; | |
789 | while (strlen (chp) >= doc_width) /* some slack */ | |
790 | { | |
791 | const char *end = chp + doc_width - 1; | |
792 | while (end > chp && !isspace (*end)) | |
793 | end --; | |
794 | if (end == chp) | |
795 | end = chp + doc_width - 1; | |
e158f0a0 AC |
796 | /* The cast should be ok - its distances between to |
797 | points in a string. */ | |
798 | sim_io_printf (sd, "%.*s\n%*s", (int) (end - chp), chp, indent, | |
799 | ""); | |
c906108c SS |
800 | chp = end; |
801 | while (isspace (*chp) && *chp != '\0') | |
802 | chp++; | |
803 | } | |
804 | sim_io_printf (sd, "%s\n", chp); | |
805 | } | |
806 | } | |
807 | } | |
808 | ||
809 | /* Print help messages for the options. */ | |
810 | ||
811 | void | |
dc416615 | 812 | sim_print_help (SIM_DESC sd, int is_command) |
c906108c SS |
813 | { |
814 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
815 | sim_io_printf (sd, "Usage: %s [options] program [program args]\n", | |
816 | STATE_MY_NAME (sd)); | |
817 | ||
818 | /* Initialize duplicate argument checker. */ | |
819 | (void) dup_arg_p (NULL); | |
820 | ||
821 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
822 | sim_io_printf (sd, "Options:\n"); | |
823 | else | |
824 | sim_io_printf (sd, "Commands:\n"); | |
825 | ||
826 | print_help (sd, NULL, STATE_OPTIONS (sd), is_command); | |
827 | sim_io_printf (sd, "\n"); | |
828 | ||
829 | /* Print cpu-specific options. */ | |
830 | { | |
831 | int i; | |
832 | ||
833 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
834 | { | |
835 | sim_cpu *cpu = STATE_CPU (sd, i); | |
836 | if (CPU_OPTIONS (cpu) == NULL) | |
837 | continue; | |
838 | sim_io_printf (sd, "CPU %s specific options:\n", CPU_NAME (cpu)); | |
839 | print_help (sd, cpu, CPU_OPTIONS (cpu), is_command); | |
840 | sim_io_printf (sd, "\n"); | |
841 | } | |
842 | } | |
843 | ||
844 | sim_io_printf (sd, "Note: Depending on the simulator configuration some %ss\n", | |
845 | STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE ? "option" : "command"); | |
846 | sim_io_printf (sd, " may not be applicable\n"); | |
847 | ||
848 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
849 | { | |
850 | sim_io_printf (sd, "\n"); | |
851 | sim_io_printf (sd, "program args Arguments to pass to simulated program.\n"); | |
852 | sim_io_printf (sd, " Note: Very few simulators support this.\n"); | |
853 | } | |
854 | } | |
855 | ||
856 | /* Utility of sim_args_command to find the closest match for a command. | |
857 | Commands that have "-" in them can be specified as separate words. | |
858 | e.g. sim memory-region 0x800000,0x4000 | |
859 | or sim memory region 0x800000,0x4000 | |
860 | If CPU is non-null, use its option table list, otherwise use the main one. | |
861 | *PARGI is where to start looking in ARGV. It is updated to point past | |
862 | the found option. */ | |
863 | ||
864 | static const OPTION * | |
865 | find_match (SIM_DESC sd, sim_cpu *cpu, char *argv[], int *pargi) | |
866 | { | |
867 | const struct option_list *ol; | |
868 | const OPTION *opt; | |
869 | /* most recent option match */ | |
870 | const OPTION *matching_opt = NULL; | |
871 | int matching_argi = -1; | |
872 | ||
873 | if (cpu) | |
874 | ol = CPU_OPTIONS (cpu); | |
875 | else | |
876 | ol = STATE_OPTIONS (sd); | |
877 | ||
878 | /* Skip passed elements specified by *PARGI. */ | |
879 | argv += *pargi; | |
880 | ||
881 | for ( ; ol != NULL; ol = ol->next) | |
882 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
883 | { | |
884 | int argi = 0; | |
885 | const char *name = opt->opt.name; | |
886 | if (name == NULL) | |
887 | continue; | |
888 | while (argv [argi] != NULL | |
889 | && strncmp (name, argv [argi], strlen (argv [argi])) == 0) | |
890 | { | |
891 | name = &name [strlen (argv[argi])]; | |
892 | if (name [0] == '-') | |
893 | { | |
894 | /* leading match ...<a-b-c>-d-e-f - continue search */ | |
895 | name ++; /* skip `-' */ | |
896 | argi ++; | |
897 | continue; | |
898 | } | |
899 | else if (name [0] == '\0') | |
900 | { | |
901 | /* exact match ...<a-b-c-d-e-f> - better than before? */ | |
902 | if (argi > matching_argi) | |
903 | { | |
904 | matching_argi = argi; | |
905 | matching_opt = opt; | |
906 | } | |
907 | break; | |
908 | } | |
909 | else | |
910 | break; | |
911 | } | |
912 | } | |
913 | ||
914 | *pargi = matching_argi; | |
915 | return matching_opt; | |
916 | } | |
917 | ||
918 | SIM_RC | |
919 | sim_args_command (SIM_DESC sd, char *cmd) | |
920 | { | |
921 | /* something to do? */ | |
922 | if (cmd == NULL) | |
109d3db3 | 923 | return SIM_RC_OK; /* FIXME - perhaps help would be better */ |
028f6515 | 924 | |
c906108c SS |
925 | if (cmd [0] == '-') |
926 | { | |
927 | /* user specified -<opt> ... form? */ | |
928 | char **argv = buildargv (cmd); | |
929 | SIM_RC rc = sim_parse_args (sd, argv); | |
930 | freeargv (argv); | |
931 | return rc; | |
932 | } | |
933 | else | |
934 | { | |
935 | char **argv = buildargv (cmd); | |
936 | const OPTION *matching_opt = NULL; | |
937 | int matching_argi; | |
938 | sim_cpu *cpu; | |
939 | ||
940 | if (argv [0] == NULL) | |
109d3db3 | 941 | return SIM_RC_OK; /* FIXME - perhaps help would be better */ |
c906108c SS |
942 | |
943 | /* First check for a cpu selector. */ | |
944 | { | |
945 | char *cpu_name = xstrdup (argv[0]); | |
946 | char *hyphen = strchr (cpu_name, '-'); | |
947 | if (hyphen) | |
948 | *hyphen = 0; | |
949 | cpu = sim_cpu_lookup (sd, cpu_name); | |
950 | if (cpu) | |
951 | { | |
952 | /* If <cpuname>-<command>, point argv[0] at <command>. */ | |
953 | if (hyphen) | |
954 | { | |
955 | matching_argi = 0; | |
956 | argv[0] += hyphen - cpu_name + 1; | |
957 | } | |
958 | else | |
959 | matching_argi = 1; | |
960 | matching_opt = find_match (sd, cpu, argv, &matching_argi); | |
961 | /* If hyphen found restore argv[0]. */ | |
962 | if (hyphen) | |
963 | argv[0] -= hyphen - cpu_name + 1; | |
964 | } | |
965 | free (cpu_name); | |
966 | } | |
967 | ||
968 | /* If that failed, try the main table. */ | |
969 | if (matching_opt == NULL) | |
970 | { | |
971 | matching_argi = 0; | |
972 | matching_opt = find_match (sd, NULL, argv, &matching_argi); | |
973 | } | |
974 | ||
975 | if (matching_opt != NULL) | |
976 | { | |
977 | switch (matching_opt->opt.has_arg) | |
978 | { | |
979 | case no_argument: | |
980 | if (argv [matching_argi + 1] == NULL) | |
981 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
982 | NULL, 1/*is_command*/); | |
983 | else | |
984 | sim_io_eprintf (sd, "Command `%s' takes no arguments\n", | |
985 | matching_opt->opt.name); | |
986 | break; | |
987 | case optional_argument: | |
988 | if (argv [matching_argi + 1] == NULL) | |
989 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
990 | NULL, 1/*is_command*/); | |
991 | else if (argv [matching_argi + 2] == NULL) | |
992 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
993 | argv [matching_argi + 1], 1/*is_command*/); | |
994 | else | |
995 | sim_io_eprintf (sd, "Command `%s' requires no more than one argument\n", | |
996 | matching_opt->opt.name); | |
997 | break; | |
998 | case required_argument: | |
999 | if (argv [matching_argi + 1] == NULL) | |
1000 | sim_io_eprintf (sd, "Command `%s' requires an argument\n", | |
1001 | matching_opt->opt.name); | |
1002 | else if (argv [matching_argi + 2] == NULL) | |
1003 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
1004 | argv [matching_argi + 1], 1/*is_command*/); | |
1005 | else | |
1006 | sim_io_eprintf (sd, "Command `%s' requires only one argument\n", | |
1007 | matching_opt->opt.name); | |
1008 | } | |
1009 | freeargv (argv); | |
1010 | return SIM_RC_OK; | |
1011 | } | |
1012 | ||
1013 | freeargv (argv); | |
1014 | } | |
028f6515 | 1015 | |
c906108c SS |
1016 | /* didn't find anything that remotly matched */ |
1017 | return SIM_RC_FAIL; | |
1018 | } |