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c906108c | 1 | /* Simulator option handling. |
32d0add0 | 2 | Copyright (C) 1996-2015 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 SS |
19 | |
20 | #include "sim-main.h" | |
21 | #ifdef HAVE_STRING_H | |
22 | #include <string.h> | |
23 | #else | |
24 | #ifdef HAVE_STRINGS_H | |
25 | #include <strings.h> | |
26 | #endif | |
27 | #endif | |
28 | #ifdef HAVE_STDLIB_H | |
29 | #include <stdlib.h> | |
30 | #endif | |
31 | #include <ctype.h> | |
32 | #include "libiberty.h" | |
33 | #include "sim-options.h" | |
34 | #include "sim-io.h" | |
35 | #include "sim-assert.h" | |
a542beff | 36 | #include "version.h" |
c906108c SS |
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, | |
a542beff | 109 | OPTION_VERSION, |
c906108c | 110 | #ifdef SIM_H8300 /* FIXME: Should be movable to h8300 dir. */ |
828c9ae6 | 111 | OPTION_H8300H, |
a8cdafbd | 112 | OPTION_H8300S, |
828c9ae6 | 113 | OPTION_H8300SX, |
c906108c | 114 | #endif |
43e526b9 JM |
115 | OPTION_LOAD_LMA, |
116 | OPTION_LOAD_VMA, | |
027e2a04 | 117 | OPTION_SYSROOT |
c906108c SS |
118 | } STANDARD_OPTIONS; |
119 | ||
120 | static const OPTION standard_options[] = | |
121 | { | |
122 | { {"verbose", no_argument, NULL, OPTION_VERBOSE}, | |
123 | 'v', NULL, "Verbose output", | |
21cf617c | 124 | standard_option_handler, NULL }, |
c906108c | 125 | |
c906108c SS |
126 | { {"endian", required_argument, NULL, OPTION_ENDIAN}, |
127 | 'E', "big|little", "Set endianness", | |
21cf617c | 128 | standard_option_handler, NULL }, |
c906108c SS |
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. */ | |
828c9ae6 | 154 | { {"h8300h", no_argument, NULL, OPTION_H8300H}, |
a69146da | 155 | 'h', NULL, "Indicate the CPU is H8/300H", |
a8cdafbd AV |
156 | standard_option_handler }, |
157 | { {"h8300s", no_argument, NULL, OPTION_H8300S}, | |
a69146da | 158 | 'S', NULL, "Indicate the CPU is H8S", |
c906108c | 159 | standard_option_handler }, |
828c9ae6 | 160 | { {"h8300sx", no_argument, NULL, OPTION_H8300SX}, |
a69146da | 161 | 'x', NULL, "Indicate the CPU is H8SX", |
828c9ae6 | 162 | standard_option_handler }, |
c906108c SS |
163 | #endif |
164 | ||
165 | #ifdef SIM_HAVE_FLATMEM | |
166 | { {"mem-size", required_argument, NULL, OPTION_MEM_SIZE}, | |
f40f1a01 NC |
167 | 'm', "<size>[in bytes, Kb (k suffix), Mb (m suffix) or Gb (g suffix)]", |
168 | "Specify memory size", standard_option_handler }, | |
c906108c SS |
169 | #endif |
170 | ||
171 | { {"do-command", required_argument, NULL, OPTION_DO_COMMAND}, | |
172 | '\0', "COMMAND", ""/*undocumented*/, | |
173 | standard_option_handler }, | |
174 | ||
175 | { {"help", no_argument, NULL, OPTION_HELP}, | |
176 | 'H', NULL, "Print help information", | |
177 | standard_option_handler }, | |
a542beff MF |
178 | { {"version", no_argument, NULL, OPTION_VERSION}, |
179 | '\0', NULL, "Print version information", | |
180 | standard_option_handler }, | |
c906108c SS |
181 | |
182 | { {"architecture", required_argument, NULL, OPTION_ARCHITECTURE}, | |
183 | '\0', "MACHINE", "Specify the architecture to use", | |
184 | standard_option_handler }, | |
185 | { {"architecture-info", no_argument, NULL, OPTION_ARCHITECTURE_INFO}, | |
186 | '\0', NULL, "List supported architectures", | |
187 | standard_option_handler }, | |
188 | { {"info-architecture", no_argument, NULL, OPTION_ARCHITECTURE_INFO}, | |
189 | '\0', NULL, NULL, | |
190 | standard_option_handler }, | |
191 | ||
192 | { {"target", required_argument, NULL, OPTION_TARGET}, | |
193 | '\0', "BFDNAME", "Specify the object-code format for the object files", | |
194 | standard_option_handler }, | |
195 | ||
43e526b9 JM |
196 | #ifdef SIM_HANDLES_LMA |
197 | { {"load-lma", no_argument, NULL, OPTION_LOAD_LMA}, | |
198 | '\0', NULL, | |
199 | #if SIM_HANDLES_LMA | |
200 | "Use VMA or LMA addresses when loading image (default LMA)", | |
201 | #else | |
202 | "Use VMA or LMA addresses when loading image (default VMA)", | |
203 | #endif | |
204 | standard_option_handler, "load-{lma,vma}" }, | |
205 | { {"load-vma", no_argument, NULL, OPTION_LOAD_VMA}, | |
206 | '\0', NULL, "", standard_option_handler, "" }, | |
207 | #endif | |
208 | ||
027e2a04 HPN |
209 | { {"sysroot", required_argument, NULL, OPTION_SYSROOT}, |
210 | '\0', "SYSROOT", | |
211 | "Root for system calls with absolute file-names and cwd at start", | |
21cf617c | 212 | standard_option_handler, NULL }, |
027e2a04 | 213 | |
21cf617c | 214 | { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL, NULL } |
c906108c SS |
215 | }; |
216 | ||
217 | static SIM_RC | |
218 | standard_option_handler (SIM_DESC sd, sim_cpu *cpu, int opt, | |
219 | char *arg, int is_command) | |
220 | { | |
221 | int i,n; | |
222 | ||
223 | switch ((STANDARD_OPTIONS) opt) | |
224 | { | |
225 | case OPTION_VERBOSE: | |
226 | STATE_VERBOSE_P (sd) = 1; | |
227 | break; | |
228 | ||
c906108c SS |
229 | case OPTION_ENDIAN: |
230 | if (strcmp (arg, "big") == 0) | |
231 | { | |
232 | if (WITH_TARGET_BYTE_ORDER == LITTLE_ENDIAN) | |
233 | { | |
234 | sim_io_eprintf (sd, "Simulator compiled for little endian only.\n"); | |
235 | return SIM_RC_FAIL; | |
236 | } | |
237 | /* FIXME:wip: Need to set something in STATE_CONFIG. */ | |
238 | current_target_byte_order = BIG_ENDIAN; | |
239 | } | |
240 | else if (strcmp (arg, "little") == 0) | |
241 | { | |
242 | if (WITH_TARGET_BYTE_ORDER == BIG_ENDIAN) | |
243 | { | |
244 | sim_io_eprintf (sd, "Simulator compiled for big endian only.\n"); | |
245 | return SIM_RC_FAIL; | |
246 | } | |
247 | /* FIXME:wip: Need to set something in STATE_CONFIG. */ | |
248 | current_target_byte_order = LITTLE_ENDIAN; | |
249 | } | |
250 | else | |
251 | { | |
252 | sim_io_eprintf (sd, "Invalid endian specification `%s'\n", arg); | |
253 | return SIM_RC_FAIL; | |
254 | } | |
255 | break; | |
c906108c SS |
256 | |
257 | case OPTION_ENVIRONMENT: | |
258 | if (strcmp (arg, "user") == 0) | |
259 | STATE_ENVIRONMENT (sd) = USER_ENVIRONMENT; | |
260 | else if (strcmp (arg, "virtual") == 0) | |
261 | STATE_ENVIRONMENT (sd) = VIRTUAL_ENVIRONMENT; | |
262 | else if (strcmp (arg, "operating") == 0) | |
263 | STATE_ENVIRONMENT (sd) = OPERATING_ENVIRONMENT; | |
264 | else | |
265 | { | |
266 | sim_io_eprintf (sd, "Invalid environment specification `%s'\n", arg); | |
267 | return SIM_RC_FAIL; | |
268 | } | |
269 | if (WITH_ENVIRONMENT != ALL_ENVIRONMENT | |
270 | && WITH_ENVIRONMENT != STATE_ENVIRONMENT (sd)) | |
271 | { | |
3dd68605 | 272 | const char *type; |
c906108c SS |
273 | switch (WITH_ENVIRONMENT) |
274 | { | |
275 | case USER_ENVIRONMENT: type = "user"; break; | |
276 | case VIRTUAL_ENVIRONMENT: type = "virtual"; break; | |
277 | case OPERATING_ENVIRONMENT: type = "operating"; break; | |
278 | } | |
279 | sim_io_eprintf (sd, "Simulator compiled for the %s environment only.\n", | |
280 | type); | |
281 | return SIM_RC_FAIL; | |
282 | } | |
283 | break; | |
284 | ||
285 | case OPTION_ALIGNMENT: | |
286 | if (strcmp (arg, "strict") == 0) | |
287 | { | |
288 | if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == STRICT_ALIGNMENT) | |
289 | { | |
290 | current_alignment = STRICT_ALIGNMENT; | |
291 | break; | |
292 | } | |
293 | } | |
294 | else if (strcmp (arg, "nonstrict") == 0) | |
295 | { | |
296 | if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == NONSTRICT_ALIGNMENT) | |
297 | { | |
298 | current_alignment = NONSTRICT_ALIGNMENT; | |
299 | break; | |
300 | } | |
301 | } | |
302 | else if (strcmp (arg, "forced") == 0) | |
303 | { | |
304 | if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == FORCED_ALIGNMENT) | |
305 | { | |
306 | current_alignment = FORCED_ALIGNMENT; | |
307 | break; | |
308 | } | |
309 | } | |
310 | else | |
311 | { | |
312 | sim_io_eprintf (sd, "Invalid alignment specification `%s'\n", arg); | |
313 | return SIM_RC_FAIL; | |
314 | } | |
315 | switch (WITH_ALIGNMENT) | |
316 | { | |
317 | case STRICT_ALIGNMENT: | |
318 | sim_io_eprintf (sd, "Simulator compiled for strict alignment only.\n"); | |
319 | break; | |
320 | case NONSTRICT_ALIGNMENT: | |
321 | sim_io_eprintf (sd, "Simulator compiled for nonstrict alignment only.\n"); | |
322 | break; | |
323 | case FORCED_ALIGNMENT: | |
324 | sim_io_eprintf (sd, "Simulator compiled for forced alignment only.\n"); | |
325 | break; | |
326 | } | |
327 | return SIM_RC_FAIL; | |
328 | ||
329 | case OPTION_DEBUG: | |
330 | if (! WITH_DEBUG) | |
331 | sim_io_eprintf (sd, "Debugging not compiled in, `-D' ignored\n"); | |
332 | else | |
333 | { | |
334 | for (n = 0; n < MAX_NR_PROCESSORS; ++n) | |
335 | for (i = 0; i < MAX_DEBUG_VALUES; ++i) | |
336 | CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[i] = 1; | |
337 | } | |
338 | break; | |
339 | ||
340 | case OPTION_DEBUG_INSN : | |
341 | if (! WITH_DEBUG) | |
342 | sim_io_eprintf (sd, "Debugging not compiled in, `--debug-insn' ignored\n"); | |
343 | else | |
344 | { | |
345 | for (n = 0; n < MAX_NR_PROCESSORS; ++n) | |
346 | CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[DEBUG_INSN_IDX] = 1; | |
347 | } | |
348 | break; | |
349 | ||
350 | case OPTION_DEBUG_FILE : | |
351 | if (! WITH_DEBUG) | |
352 | sim_io_eprintf (sd, "Debugging not compiled in, `--debug-file' ignored\n"); | |
353 | else | |
354 | { | |
355 | FILE *f = fopen (arg, "w"); | |
356 | ||
357 | if (f == NULL) | |
358 | { | |
359 | sim_io_eprintf (sd, "Unable to open debug output file `%s'\n", arg); | |
360 | return SIM_RC_FAIL; | |
361 | } | |
362 | for (n = 0; n < MAX_NR_PROCESSORS; ++n) | |
363 | CPU_DEBUG_FILE (STATE_CPU (sd, n)) = f; | |
364 | } | |
365 | break; | |
366 | ||
367 | #ifdef SIM_H8300 /* FIXME: Can be moved to h8300 dir. */ | |
828c9ae6 MS |
368 | case OPTION_H8300H: |
369 | set_h8300h (bfd_mach_h8300h); | |
a8cdafbd AV |
370 | break; |
371 | case OPTION_H8300S: | |
828c9ae6 MS |
372 | set_h8300h (bfd_mach_h8300s); |
373 | break; | |
374 | case OPTION_H8300SX: | |
375 | set_h8300h (bfd_mach_h8300sx); | |
c906108c SS |
376 | break; |
377 | #endif | |
378 | ||
379 | #ifdef SIM_HAVE_FLATMEM | |
380 | case OPTION_MEM_SIZE: | |
381 | { | |
f40f1a01 NC |
382 | char * endp; |
383 | unsigned long ul = strtol (arg, &endp, 0); | |
384 | ||
385 | switch (* endp) | |
386 | { | |
387 | case 'k': case 'K': size <<= 10; break; | |
388 | case 'm': case 'M': size <<= 20; break; | |
389 | case 'g': case 'G': size <<= 30; break; | |
390 | case ' ': case '\0': case '\t': break; | |
391 | default: | |
392 | if (ul > 0) | |
393 | sim_io_eprintf (sd, "Ignoring strange character at end of memory size: %c\n", * endp); | |
394 | break; | |
395 | } | |
396 | ||
c906108c SS |
397 | /* 16384: some minimal amount */ |
398 | if (! isdigit (arg[0]) || ul < 16384) | |
399 | { | |
400 | sim_io_eprintf (sd, "Invalid memory size `%s'", arg); | |
401 | return SIM_RC_FAIL; | |
402 | } | |
403 | STATE_MEM_SIZE (sd) = ul; | |
404 | } | |
405 | break; | |
406 | #endif | |
407 | ||
408 | case OPTION_DO_COMMAND: | |
409 | sim_do_command (sd, arg); | |
410 | break; | |
411 | ||
412 | case OPTION_ARCHITECTURE: | |
413 | { | |
414 | const struct bfd_arch_info *ap = bfd_scan_arch (arg); | |
415 | if (ap == NULL) | |
416 | { | |
417 | sim_io_eprintf (sd, "Architecture `%s' unknown\n", arg); | |
418 | return SIM_RC_FAIL; | |
419 | } | |
420 | STATE_ARCHITECTURE (sd) = ap; | |
421 | break; | |
422 | } | |
423 | ||
424 | case OPTION_ARCHITECTURE_INFO: | |
425 | { | |
34b47c38 | 426 | const char **list = bfd_arch_list (); |
c906108c SS |
427 | const char **lp; |
428 | if (list == NULL) | |
429 | abort (); | |
430 | sim_io_printf (sd, "Possible architectures:"); | |
431 | for (lp = list; *lp != NULL; lp++) | |
432 | sim_io_printf (sd, " %s", *lp); | |
433 | sim_io_printf (sd, "\n"); | |
434 | free (list); | |
435 | break; | |
436 | } | |
437 | ||
438 | case OPTION_TARGET: | |
439 | { | |
440 | STATE_TARGET (sd) = xstrdup (arg); | |
441 | break; | |
442 | } | |
443 | ||
43e526b9 JM |
444 | case OPTION_LOAD_LMA: |
445 | { | |
446 | STATE_LOAD_AT_LMA_P (sd) = 1; | |
447 | break; | |
448 | } | |
449 | ||
450 | case OPTION_LOAD_VMA: | |
451 | { | |
452 | STATE_LOAD_AT_LMA_P (sd) = 0; | |
453 | break; | |
454 | } | |
455 | ||
c906108c SS |
456 | case OPTION_HELP: |
457 | sim_print_help (sd, is_command); | |
458 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
459 | exit (0); | |
460 | /* FIXME: 'twould be nice to do something similar if gdb. */ | |
461 | break; | |
027e2a04 | 462 | |
a542beff MF |
463 | case OPTION_VERSION: |
464 | sim_io_printf (sd, "GNU simulator %s%s\n", PKGVERSION, version); | |
465 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
466 | exit (0); | |
467 | break; | |
468 | ||
027e2a04 HPN |
469 | case OPTION_SYSROOT: |
470 | /* Don't leak memory in the odd event that there's lots of | |
440db575 MF |
471 | --sysroot=... options. We treat "" specially since this |
472 | is the statically initialized value and cannot free it. */ | |
473 | if (simulator_sysroot[0] != '\0') | |
027e2a04 | 474 | free (simulator_sysroot); |
440db575 MF |
475 | if (arg[0] != '\0') |
476 | simulator_sysroot = xstrdup (arg); | |
477 | else | |
478 | simulator_sysroot = ""; | |
027e2a04 | 479 | break; |
c906108c SS |
480 | } |
481 | ||
482 | return SIM_RC_OK; | |
483 | } | |
484 | ||
485 | /* Add the standard option list to the simulator. */ | |
486 | ||
487 | SIM_RC | |
488 | standard_install (SIM_DESC sd) | |
489 | { | |
490 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); | |
491 | if (sim_add_option_table (sd, NULL, standard_options) != SIM_RC_OK) | |
492 | return SIM_RC_FAIL; | |
43e526b9 JM |
493 | #ifdef SIM_HANDLES_LMA |
494 | STATE_LOAD_AT_LMA_P (sd) = SIM_HANDLES_LMA; | |
495 | #endif | |
c906108c SS |
496 | return SIM_RC_OK; |
497 | } | |
498 | ||
499 | /* Return non-zero if arg is a duplicate argument. | |
500 | If ARG is NULL, initialize. */ | |
501 | ||
502 | #define ARG_HASH_SIZE 97 | |
503 | #define ARG_HASH(a) ((256 * (unsigned char) a[0] + (unsigned char) a[1]) % ARG_HASH_SIZE) | |
504 | ||
505 | static int | |
e377ca52 | 506 | dup_arg_p (const char *arg) |
c906108c SS |
507 | { |
508 | int hash; | |
e377ca52 | 509 | static const char **arg_table = NULL; |
c906108c SS |
510 | |
511 | if (arg == NULL) | |
512 | { | |
513 | if (arg_table == NULL) | |
e377ca52 | 514 | arg_table = (const char **) xmalloc (ARG_HASH_SIZE * sizeof (char *)); |
c906108c SS |
515 | memset (arg_table, 0, ARG_HASH_SIZE * sizeof (char *)); |
516 | return 0; | |
517 | } | |
518 | ||
519 | hash = ARG_HASH (arg); | |
520 | while (arg_table[hash] != NULL) | |
521 | { | |
522 | if (strcmp (arg, arg_table[hash]) == 0) | |
523 | return 1; | |
524 | /* We assume there won't be more than ARG_HASH_SIZE arguments so we | |
525 | don't check if the table is full. */ | |
526 | if (++hash == ARG_HASH_SIZE) | |
527 | hash = 0; | |
528 | } | |
529 | arg_table[hash] = arg; | |
530 | return 0; | |
531 | } | |
028f6515 | 532 | |
c906108c SS |
533 | /* Called by sim_open to parse the arguments. */ |
534 | ||
535 | SIM_RC | |
dc416615 | 536 | sim_parse_args (SIM_DESC sd, char **argv) |
c906108c SS |
537 | { |
538 | int c, i, argc, num_opts; | |
539 | char *p, *short_options; | |
540 | /* The `val' option struct entry is dynamically assigned for options that | |
541 | only come in the long form. ORIG_VAL is used to get the original value | |
542 | back. */ | |
543 | int *orig_val; | |
544 | struct option *lp, *long_options; | |
545 | const struct option_list *ol; | |
546 | const OPTION *opt; | |
547 | OPTION_HANDLER **handlers; | |
548 | sim_cpu **opt_cpu; | |
7c070881 | 549 | SIM_RC result = SIM_RC_OK; |
c906108c SS |
550 | |
551 | /* Count the number of arguments. */ | |
552 | for (argc = 0; argv[argc] != NULL; ++argc) | |
553 | continue; | |
554 | ||
555 | /* Count the number of options. */ | |
556 | num_opts = 0; | |
557 | for (ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next) | |
558 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
559 | ++num_opts; | |
560 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
561 | for (ol = CPU_OPTIONS (STATE_CPU (sd, i)); ol != NULL; ol = ol->next) | |
562 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
563 | ++num_opts; | |
564 | ||
565 | /* Initialize duplicate argument checker. */ | |
566 | (void) dup_arg_p (NULL); | |
567 | ||
568 | /* Build the option table for getopt. */ | |
569 | ||
570 | long_options = NZALLOC (struct option, num_opts + 1); | |
571 | lp = long_options; | |
572 | short_options = NZALLOC (char, num_opts * 3 + 1); | |
573 | p = short_options; | |
574 | handlers = NZALLOC (OPTION_HANDLER *, OPTION_START + num_opts); | |
575 | orig_val = NZALLOC (int, OPTION_START + num_opts); | |
576 | opt_cpu = NZALLOC (sim_cpu *, OPTION_START + num_opts); | |
577 | ||
578 | /* Set '+' as first char so argument permutation isn't done. This | |
579 | is done to stop getopt_long returning options that appear after | |
580 | the target program. Such options should be passed unchanged into | |
581 | the program image. */ | |
582 | *p++ = '+'; | |
583 | ||
584 | for (i = OPTION_START, ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next) | |
585 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
586 | { | |
587 | if (dup_arg_p (opt->opt.name)) | |
588 | continue; | |
589 | if (opt->shortopt != 0) | |
590 | { | |
591 | *p++ = opt->shortopt; | |
592 | if (opt->opt.has_arg == required_argument) | |
593 | *p++ = ':'; | |
594 | else if (opt->opt.has_arg == optional_argument) | |
595 | { *p++ = ':'; *p++ = ':'; } | |
596 | handlers[(unsigned char) opt->shortopt] = opt->handler; | |
597 | if (opt->opt.val != 0) | |
598 | orig_val[(unsigned char) opt->shortopt] = opt->opt.val; | |
599 | else | |
600 | orig_val[(unsigned char) opt->shortopt] = opt->shortopt; | |
601 | } | |
602 | if (opt->opt.name != NULL) | |
603 | { | |
604 | *lp = opt->opt; | |
605 | /* Dynamically assign `val' numbers for long options. */ | |
606 | lp->val = i++; | |
607 | handlers[lp->val] = opt->handler; | |
608 | orig_val[lp->val] = opt->opt.val; | |
609 | opt_cpu[lp->val] = NULL; | |
610 | ++lp; | |
611 | } | |
612 | } | |
613 | ||
614 | for (c = 0; c < MAX_NR_PROCESSORS; ++c) | |
615 | { | |
616 | sim_cpu *cpu = STATE_CPU (sd, c); | |
617 | for (ol = CPU_OPTIONS (cpu); ol != NULL; ol = ol->next) | |
618 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
619 | { | |
620 | #if 0 /* Each option is prepended with --<cpuname>- so this greatly cuts down | |
621 | on the need for dup_arg_p checking. Maybe in the future it'll be | |
622 | needed so this is just commented out, and not deleted. */ | |
623 | if (dup_arg_p (opt->opt.name)) | |
624 | continue; | |
625 | #endif | |
626 | /* Don't allow short versions of cpu specific options for now. */ | |
627 | if (opt->shortopt != 0) | |
628 | { | |
629 | sim_io_eprintf (sd, "internal error, short cpu specific option"); | |
7c070881 SC |
630 | result = SIM_RC_FAIL; |
631 | break; | |
c906108c SS |
632 | } |
633 | if (opt->opt.name != NULL) | |
634 | { | |
635 | char *name; | |
636 | *lp = opt->opt; | |
637 | /* Prepend --<cpuname>- to the option. */ | |
39a3ae0a MF |
638 | if (asprintf (&name, "%s-%s", CPU_NAME (cpu), lp->name) < 0) |
639 | { | |
640 | sim_io_eprintf (sd, "internal error, out of memory"); | |
641 | result = SIM_RC_FAIL; | |
642 | break; | |
643 | } | |
c906108c SS |
644 | lp->name = name; |
645 | /* Dynamically assign `val' numbers for long options. */ | |
646 | lp->val = i++; | |
647 | handlers[lp->val] = opt->handler; | |
648 | orig_val[lp->val] = opt->opt.val; | |
649 | opt_cpu[lp->val] = cpu; | |
650 | ++lp; | |
651 | } | |
652 | } | |
653 | } | |
028f6515 | 654 | |
c906108c SS |
655 | /* Terminate the short and long option lists. */ |
656 | *p = 0; | |
657 | lp->name = NULL; | |
658 | ||
659 | /* Ensure getopt is initialized. */ | |
660 | optind = 0; | |
661 | ||
662 | while (1) | |
663 | { | |
664 | int longind, optc; | |
665 | ||
666 | optc = getopt_long (argc, argv, short_options, long_options, &longind); | |
667 | if (optc == -1) | |
668 | { | |
669 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
670 | STATE_PROG_ARGV (sd) = dupargv (argv + optind); | |
671 | break; | |
672 | } | |
673 | if (optc == '?') | |
7c070881 SC |
674 | { |
675 | result = SIM_RC_FAIL; | |
676 | break; | |
677 | } | |
c906108c SS |
678 | |
679 | if ((*handlers[optc]) (sd, opt_cpu[optc], orig_val[optc], optarg, 0/*!is_command*/) == SIM_RC_FAIL) | |
7c070881 SC |
680 | { |
681 | result = SIM_RC_FAIL; | |
682 | break; | |
683 | } | |
c906108c SS |
684 | } |
685 | ||
d79fe0d6 MF |
686 | free (long_options); |
687 | free (short_options); | |
688 | free (handlers); | |
689 | free (opt_cpu); | |
690 | free (orig_val); | |
7c070881 | 691 | return result; |
c906108c SS |
692 | } |
693 | ||
694 | /* Utility of sim_print_help to print a list of option tables. */ | |
695 | ||
696 | static void | |
697 | print_help (SIM_DESC sd, sim_cpu *cpu, const struct option_list *ol, int is_command) | |
698 | { | |
699 | const OPTION *opt; | |
700 | ||
701 | for ( ; ol != NULL; ol = ol->next) | |
702 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
703 | { | |
704 | const int indent = 30; | |
705 | int comma, len; | |
706 | const OPTION *o; | |
707 | ||
708 | if (dup_arg_p (opt->opt.name)) | |
709 | continue; | |
710 | ||
711 | if (opt->doc == NULL) | |
712 | continue; | |
713 | ||
714 | if (opt->doc_name != NULL && opt->doc_name [0] == '\0') | |
715 | continue; | |
716 | ||
717 | sim_io_printf (sd, " "); | |
718 | ||
719 | comma = 0; | |
720 | len = 2; | |
721 | ||
722 | /* list any short options (aliases) for the current OPT */ | |
723 | if (!is_command) | |
724 | { | |
725 | o = opt; | |
726 | do | |
727 | { | |
728 | if (o->shortopt != '\0') | |
729 | { | |
730 | sim_io_printf (sd, "%s-%c", comma ? ", " : "", o->shortopt); | |
731 | len += (comma ? 2 : 0) + 2; | |
732 | if (o->arg != NULL) | |
733 | { | |
734 | if (o->opt.has_arg == optional_argument) | |
735 | { | |
736 | sim_io_printf (sd, "[%s]", o->arg); | |
737 | len += 1 + strlen (o->arg) + 1; | |
738 | } | |
739 | else | |
740 | { | |
741 | sim_io_printf (sd, " %s", o->arg); | |
742 | len += 1 + strlen (o->arg); | |
743 | } | |
744 | } | |
745 | comma = 1; | |
746 | } | |
747 | ++o; | |
748 | } | |
749 | while (OPTION_VALID_P (o) && o->doc == NULL); | |
750 | } | |
028f6515 | 751 | |
c906108c SS |
752 | /* list any long options (aliases) for the current OPT */ |
753 | o = opt; | |
754 | do | |
755 | { | |
756 | const char *name; | |
757 | const char *cpu_prefix = cpu ? CPU_NAME (cpu) : NULL; | |
758 | if (o->doc_name != NULL) | |
759 | name = o->doc_name; | |
760 | else | |
761 | name = o->opt.name; | |
762 | if (name != NULL) | |
763 | { | |
764 | sim_io_printf (sd, "%s%s%s%s%s", | |
765 | comma ? ", " : "", | |
766 | is_command ? "" : "--", | |
767 | cpu ? cpu_prefix : "", | |
768 | cpu ? "-" : "", | |
769 | name); | |
770 | len += ((comma ? 2 : 0) | |
771 | + (is_command ? 0 : 2) | |
772 | + strlen (name)); | |
773 | if (o->arg != NULL) | |
774 | { | |
775 | if (o->opt.has_arg == optional_argument) | |
776 | { | |
c4093a6a | 777 | sim_io_printf (sd, "[=%s]", o->arg); |
c906108c SS |
778 | len += 2 + strlen (o->arg) + 1; |
779 | } | |
780 | else | |
781 | { | |
782 | sim_io_printf (sd, " %s", o->arg); | |
783 | len += 1 + strlen (o->arg); | |
784 | } | |
785 | } | |
786 | comma = 1; | |
787 | } | |
788 | ++o; | |
789 | } | |
790 | while (OPTION_VALID_P (o) && o->doc == NULL); | |
791 | ||
792 | if (len >= indent) | |
793 | { | |
794 | sim_io_printf (sd, "\n%*s", indent, ""); | |
795 | } | |
796 | else | |
797 | sim_io_printf (sd, "%*s", indent - len, ""); | |
798 | ||
799 | /* print the description, word wrap long lines */ | |
800 | { | |
801 | const char *chp = opt->doc; | |
802 | unsigned doc_width = 80 - indent; | |
803 | while (strlen (chp) >= doc_width) /* some slack */ | |
804 | { | |
805 | const char *end = chp + doc_width - 1; | |
806 | while (end > chp && !isspace (*end)) | |
807 | end --; | |
808 | if (end == chp) | |
809 | end = chp + doc_width - 1; | |
e158f0a0 AC |
810 | /* The cast should be ok - its distances between to |
811 | points in a string. */ | |
812 | sim_io_printf (sd, "%.*s\n%*s", (int) (end - chp), chp, indent, | |
813 | ""); | |
c906108c SS |
814 | chp = end; |
815 | while (isspace (*chp) && *chp != '\0') | |
816 | chp++; | |
817 | } | |
818 | sim_io_printf (sd, "%s\n", chp); | |
819 | } | |
820 | } | |
821 | } | |
822 | ||
823 | /* Print help messages for the options. */ | |
824 | ||
825 | void | |
dc416615 | 826 | sim_print_help (SIM_DESC sd, int is_command) |
c906108c SS |
827 | { |
828 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
829 | sim_io_printf (sd, "Usage: %s [options] program [program args]\n", | |
830 | STATE_MY_NAME (sd)); | |
831 | ||
832 | /* Initialize duplicate argument checker. */ | |
833 | (void) dup_arg_p (NULL); | |
834 | ||
835 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
836 | sim_io_printf (sd, "Options:\n"); | |
837 | else | |
838 | sim_io_printf (sd, "Commands:\n"); | |
839 | ||
840 | print_help (sd, NULL, STATE_OPTIONS (sd), is_command); | |
841 | sim_io_printf (sd, "\n"); | |
842 | ||
843 | /* Print cpu-specific options. */ | |
844 | { | |
845 | int i; | |
846 | ||
847 | for (i = 0; i < MAX_NR_PROCESSORS; ++i) | |
848 | { | |
849 | sim_cpu *cpu = STATE_CPU (sd, i); | |
850 | if (CPU_OPTIONS (cpu) == NULL) | |
851 | continue; | |
852 | sim_io_printf (sd, "CPU %s specific options:\n", CPU_NAME (cpu)); | |
853 | print_help (sd, cpu, CPU_OPTIONS (cpu), is_command); | |
854 | sim_io_printf (sd, "\n"); | |
855 | } | |
856 | } | |
857 | ||
858 | sim_io_printf (sd, "Note: Depending on the simulator configuration some %ss\n", | |
859 | STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE ? "option" : "command"); | |
860 | sim_io_printf (sd, " may not be applicable\n"); | |
861 | ||
862 | if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE) | |
863 | { | |
864 | sim_io_printf (sd, "\n"); | |
865 | sim_io_printf (sd, "program args Arguments to pass to simulated program.\n"); | |
866 | sim_io_printf (sd, " Note: Very few simulators support this.\n"); | |
867 | } | |
868 | } | |
869 | ||
870 | /* Utility of sim_args_command to find the closest match for a command. | |
871 | Commands that have "-" in them can be specified as separate words. | |
872 | e.g. sim memory-region 0x800000,0x4000 | |
873 | or sim memory region 0x800000,0x4000 | |
874 | If CPU is non-null, use its option table list, otherwise use the main one. | |
875 | *PARGI is where to start looking in ARGV. It is updated to point past | |
876 | the found option. */ | |
877 | ||
878 | static const OPTION * | |
879 | find_match (SIM_DESC sd, sim_cpu *cpu, char *argv[], int *pargi) | |
880 | { | |
881 | const struct option_list *ol; | |
882 | const OPTION *opt; | |
883 | /* most recent option match */ | |
884 | const OPTION *matching_opt = NULL; | |
885 | int matching_argi = -1; | |
886 | ||
887 | if (cpu) | |
888 | ol = CPU_OPTIONS (cpu); | |
889 | else | |
890 | ol = STATE_OPTIONS (sd); | |
891 | ||
892 | /* Skip passed elements specified by *PARGI. */ | |
893 | argv += *pargi; | |
894 | ||
895 | for ( ; ol != NULL; ol = ol->next) | |
896 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
897 | { | |
898 | int argi = 0; | |
899 | const char *name = opt->opt.name; | |
900 | if (name == NULL) | |
901 | continue; | |
902 | while (argv [argi] != NULL | |
903 | && strncmp (name, argv [argi], strlen (argv [argi])) == 0) | |
904 | { | |
905 | name = &name [strlen (argv[argi])]; | |
906 | if (name [0] == '-') | |
907 | { | |
908 | /* leading match ...<a-b-c>-d-e-f - continue search */ | |
909 | name ++; /* skip `-' */ | |
910 | argi ++; | |
911 | continue; | |
912 | } | |
913 | else if (name [0] == '\0') | |
914 | { | |
915 | /* exact match ...<a-b-c-d-e-f> - better than before? */ | |
916 | if (argi > matching_argi) | |
917 | { | |
918 | matching_argi = argi; | |
919 | matching_opt = opt; | |
920 | } | |
921 | break; | |
922 | } | |
923 | else | |
924 | break; | |
925 | } | |
926 | } | |
927 | ||
928 | *pargi = matching_argi; | |
929 | return matching_opt; | |
930 | } | |
931 | ||
56a9aa1d MF |
932 | static char ** |
933 | complete_option_list (char **ret, size_t *cnt, const struct option_list *ol, | |
f06dccb0 | 934 | const char *text, const char *word) |
56a9aa1d MF |
935 | { |
936 | const OPTION *opt = NULL; | |
937 | int argi; | |
938 | size_t len = strlen (word); | |
939 | ||
940 | for ( ; ol != NULL; ol = ol->next) | |
941 | for (opt = ol->options; OPTION_VALID_P (opt); ++opt) | |
942 | { | |
943 | const char *name = opt->opt.name; | |
944 | ||
945 | /* A long option to match against? */ | |
946 | if (!name) | |
947 | continue; | |
948 | ||
949 | /* Does this option actually match? */ | |
950 | if (strncmp (name, word, len)) | |
951 | continue; | |
952 | ||
953 | ret = xrealloc (ret, ++*cnt * sizeof (ret[0])); | |
954 | ret[*cnt - 2] = xstrdup (name); | |
955 | } | |
956 | ||
957 | return ret; | |
958 | } | |
959 | ||
960 | /* All leading text is stored in @text, while the current word being | |
961 | completed is stored in @word. Trailing text of @word is not. */ | |
5592f70e | 962 | |
56a9aa1d | 963 | char ** |
3cb2ab1a | 964 | sim_complete_command (SIM_DESC sd, const char *text, const char *word) |
56a9aa1d MF |
965 | { |
966 | char **ret = NULL; | |
967 | size_t cnt = 1; | |
968 | sim_cpu *cpu; | |
969 | ||
970 | /* Only complete first word for now. */ | |
971 | if (text != word) | |
972 | return ret; | |
973 | ||
974 | cpu = STATE_CPU (sd, 0); | |
975 | if (cpu) | |
976 | ret = complete_option_list (ret, &cnt, CPU_OPTIONS (cpu), text, word); | |
977 | ret = complete_option_list (ret, &cnt, STATE_OPTIONS (sd), text, word); | |
978 | ||
979 | if (ret) | |
980 | ret[cnt - 1] = NULL; | |
981 | return ret; | |
982 | } | |
983 | ||
c906108c | 984 | SIM_RC |
60d847df | 985 | sim_args_command (SIM_DESC sd, const char *cmd) |
c906108c SS |
986 | { |
987 | /* something to do? */ | |
988 | if (cmd == NULL) | |
109d3db3 | 989 | return SIM_RC_OK; /* FIXME - perhaps help would be better */ |
028f6515 | 990 | |
c906108c SS |
991 | if (cmd [0] == '-') |
992 | { | |
993 | /* user specified -<opt> ... form? */ | |
994 | char **argv = buildargv (cmd); | |
995 | SIM_RC rc = sim_parse_args (sd, argv); | |
996 | freeargv (argv); | |
997 | return rc; | |
998 | } | |
999 | else | |
1000 | { | |
1001 | char **argv = buildargv (cmd); | |
1002 | const OPTION *matching_opt = NULL; | |
1003 | int matching_argi; | |
1004 | sim_cpu *cpu; | |
1005 | ||
1006 | if (argv [0] == NULL) | |
c9ba137e CG |
1007 | { |
1008 | freeargv (argv); | |
1009 | return SIM_RC_OK; /* FIXME - perhaps help would be better */ | |
1010 | } | |
c906108c SS |
1011 | |
1012 | /* First check for a cpu selector. */ | |
1013 | { | |
1014 | char *cpu_name = xstrdup (argv[0]); | |
1015 | char *hyphen = strchr (cpu_name, '-'); | |
1016 | if (hyphen) | |
1017 | *hyphen = 0; | |
1018 | cpu = sim_cpu_lookup (sd, cpu_name); | |
1019 | if (cpu) | |
1020 | { | |
1021 | /* If <cpuname>-<command>, point argv[0] at <command>. */ | |
1022 | if (hyphen) | |
1023 | { | |
1024 | matching_argi = 0; | |
1025 | argv[0] += hyphen - cpu_name + 1; | |
1026 | } | |
1027 | else | |
1028 | matching_argi = 1; | |
1029 | matching_opt = find_match (sd, cpu, argv, &matching_argi); | |
1030 | /* If hyphen found restore argv[0]. */ | |
1031 | if (hyphen) | |
1032 | argv[0] -= hyphen - cpu_name + 1; | |
1033 | } | |
1034 | free (cpu_name); | |
1035 | } | |
1036 | ||
1037 | /* If that failed, try the main table. */ | |
1038 | if (matching_opt == NULL) | |
1039 | { | |
1040 | matching_argi = 0; | |
1041 | matching_opt = find_match (sd, NULL, argv, &matching_argi); | |
1042 | } | |
1043 | ||
1044 | if (matching_opt != NULL) | |
1045 | { | |
1046 | switch (matching_opt->opt.has_arg) | |
1047 | { | |
1048 | case no_argument: | |
1049 | if (argv [matching_argi + 1] == NULL) | |
1050 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
1051 | NULL, 1/*is_command*/); | |
1052 | else | |
1053 | sim_io_eprintf (sd, "Command `%s' takes no arguments\n", | |
1054 | matching_opt->opt.name); | |
1055 | break; | |
1056 | case optional_argument: | |
1057 | if (argv [matching_argi + 1] == NULL) | |
1058 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
1059 | NULL, 1/*is_command*/); | |
1060 | else if (argv [matching_argi + 2] == NULL) | |
1061 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
1062 | argv [matching_argi + 1], 1/*is_command*/); | |
1063 | else | |
1064 | sim_io_eprintf (sd, "Command `%s' requires no more than one argument\n", | |
1065 | matching_opt->opt.name); | |
1066 | break; | |
1067 | case required_argument: | |
1068 | if (argv [matching_argi + 1] == NULL) | |
1069 | sim_io_eprintf (sd, "Command `%s' requires an argument\n", | |
1070 | matching_opt->opt.name); | |
1071 | else if (argv [matching_argi + 2] == NULL) | |
1072 | matching_opt->handler (sd, cpu, matching_opt->opt.val, | |
1073 | argv [matching_argi + 1], 1/*is_command*/); | |
1074 | else | |
1075 | sim_io_eprintf (sd, "Command `%s' requires only one argument\n", | |
1076 | matching_opt->opt.name); | |
1077 | } | |
1078 | freeargv (argv); | |
1079 | return SIM_RC_OK; | |
1080 | } | |
1081 | ||
1082 | freeargv (argv); | |
1083 | } | |
028f6515 | 1084 | |
c906108c SS |
1085 | /* didn't find anything that remotly matched */ |
1086 | return SIM_RC_FAIL; | |
1087 | } |