projects / deliverable / binutils-gdb.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
2003-11-12 Michael Snyder <msnyder@redhat.com>
[deliverable/binutils-gdb.git] / sim / common / sim-options.c
CommitLineData
c906108c
SS		 1/* Simulator option handling.
2 Copyright (C) 1996, 1997 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
4
5This file is part of GDB, the GNU debugger.
6
7This program is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2, or (at your option)
10any later version.
11
12This program is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License along
18with this program; if not, write to the Free Software Foundation, Inc.,
1959 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
44SIM_RC
45sim_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
75static 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
93typedef 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. */
828c9ae6 112 OPTION_H8300H,
a8cdafbd 113 OPTION_H8300S,
828c9ae6 114 OPTION_H8300SX,
c906108c 115#endif
43e526b9
JM		 116 OPTION_LOAD_LMA,
117 OPTION_LOAD_VMA,
c906108c
SS		 118} STANDARD_OPTIONS;
119
120static const OPTION standard_options[] =
121{
122 { {"verbose", no_argument, NULL, OPTION_VERBOSE},
123 'v', NULL, "Verbose output",
124 standard_option_handler },
125
126#if defined (SIM_HAVE_BIENDIAN) /* ??? && WITH_TARGET_BYTE_ORDER == 0 */
127 { {"endian", required_argument, NULL, OPTION_ENDIAN},
128 'E', "big|little", "Set endianness",
129 standard_option_handler },
130#endif
131
132#ifdef SIM_HAVE_ENVIRONMENT
133 /* This option isn't supported unless all choices are supported in keeping
134 with the goal of not printing in --help output things the simulator can't
135 do [as opposed to things that just haven't been configured in]. */
136 { {"environment", required_argument, NULL, OPTION_ENVIRONMENT},
137 '\0', "user|virtual|operating", "Set running environment",
138 standard_option_handler },
139#endif
140
141 { {"alignment", required_argument, NULL, OPTION_ALIGNMENT},
142 '\0', "strict|nonstrict|forced", "Set memory access alignment",
143 standard_option_handler },
144
145 { {"debug", no_argument, NULL, OPTION_DEBUG},
146 'D', NULL, "Print debugging messages",
147 standard_option_handler },
148 { {"debug-insn", no_argument, NULL, OPTION_DEBUG_INSN},
149 '\0', NULL, "Print instruction debugging messages",
150 standard_option_handler },
151 { {"debug-file", required_argument, NULL, OPTION_DEBUG_FILE},
152 '\0', "FILE NAME", "Specify debugging output file",
153 standard_option_handler },
154
155#ifdef SIM_H8300 /* FIXME: Should be movable to h8300 dir. */
828c9ae6 156 { {"h8300h", no_argument, NULL, OPTION_H8300H},
a8cdafbd
AV		 157 'h', NULL, "Indicate the CPU is h8/300h",
158 standard_option_handler },
159 { {"h8300s", no_argument, NULL, OPTION_H8300S},
160 'S', NULL, "Indicate the CPU is h8/300s",
c906108c 161 standard_option_handler },
828c9ae6
MS		 162 { {"h8300sx", no_argument, NULL, OPTION_H8300SX},
163 'x', NULL, "Indicate the CPU is h8/300sx",
164 standard_option_handler },
c906108c
SS		 165#endif
166
167#ifdef SIM_HAVE_FLATMEM
168 { {"mem-size", required_argument, NULL, OPTION_MEM_SIZE},
169 'm', "MEMORY SIZE", "Specify memory size",
170 standard_option_handler },
171#endif
172
173 { {"do-command", required_argument, NULL, OPTION_DO_COMMAND},
174 '\0', "COMMAND", ""/*undocumented*/,
175 standard_option_handler },
176
177 { {"help", no_argument, NULL, OPTION_HELP},
178 'H', NULL, "Print help information",
179 standard_option_handler },
180
181 { {"architecture", required_argument, NULL, OPTION_ARCHITECTURE},
182 '\0', "MACHINE", "Specify the architecture to use",
183 standard_option_handler },
184 { {"architecture-info", no_argument, NULL, OPTION_ARCHITECTURE_INFO},
185 '\0', NULL, "List supported architectures",
186 standard_option_handler },
187 { {"info-architecture", no_argument, NULL, OPTION_ARCHITECTURE_INFO},
188 '\0', NULL, NULL,
189 standard_option_handler },
190
191 { {"target", required_argument, NULL, OPTION_TARGET},
192 '\0', "BFDNAME", "Specify the object-code format for the object files",
193 standard_option_handler },
194
43e526b9
JM		 195#ifdef SIM_HANDLES_LMA
196 { {"load-lma", no_argument, NULL, OPTION_LOAD_LMA},
197 '\0', NULL,
198#if SIM_HANDLES_LMA
199 "Use VMA or LMA addresses when loading image (default LMA)",
200#else
201 "Use VMA or LMA addresses when loading image (default VMA)",
202#endif
203 standard_option_handler, "load-{lma,vma}" },
204 { {"load-vma", no_argument, NULL, OPTION_LOAD_VMA},
205 '\0', NULL, "", standard_option_handler, "" },
206#endif
207
c906108c
SS		 208 { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL }
209};
210
211static SIM_RC
212standard_option_handler (SIM_DESC sd, sim_cpu *cpu, int opt,
213 char *arg, int is_command)
214{
215 int i,n;
216
217 switch ((STANDARD_OPTIONS) opt)
218 {
219 case OPTION_VERBOSE:
220 STATE_VERBOSE_P (sd) = 1;
221 break;
222
223#ifdef SIM_HAVE_BIENDIAN
224 case OPTION_ENDIAN:
225 if (strcmp (arg, "big") == 0)
226 {
227 if (WITH_TARGET_BYTE_ORDER == LITTLE_ENDIAN)
228 {
229 sim_io_eprintf (sd, "Simulator compiled for little endian only.\n");
230 return SIM_RC_FAIL;
231 }
232 /* FIXME:wip: Need to set something in STATE_CONFIG. */
233 current_target_byte_order = BIG_ENDIAN;
234 }
235 else if (strcmp (arg, "little") == 0)
236 {
237 if (WITH_TARGET_BYTE_ORDER == BIG_ENDIAN)
238 {
239 sim_io_eprintf (sd, "Simulator compiled for big endian only.\n");
240 return SIM_RC_FAIL;
241 }
242 /* FIXME:wip: Need to set something in STATE_CONFIG. */
243 current_target_byte_order = LITTLE_ENDIAN;
244 }
245 else
246 {
247 sim_io_eprintf (sd, "Invalid endian specification `%s'\n", arg);
248 return SIM_RC_FAIL;
249 }
250 break;
251#endif
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 {
268 char *type;
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 {
378 unsigned long ul = strtol (arg, NULL, 0);
379 /* 16384: some minimal amount */
380 if (! isdigit (arg[0]) || ul < 16384)
381 {
382 sim_io_eprintf (sd, "Invalid memory size `%s'", arg);
383 return SIM_RC_FAIL;
384 }
385 STATE_MEM_SIZE (sd) = ul;
386 }
387 break;
388#endif
389
390 case OPTION_DO_COMMAND:
391 sim_do_command (sd, arg);
392 break;
393
394 case OPTION_ARCHITECTURE:
395 {
396 const struct bfd_arch_info *ap = bfd_scan_arch (arg);
397 if (ap == NULL)
398 {
399 sim_io_eprintf (sd, "Architecture `%s' unknown\n", arg);
400 return SIM_RC_FAIL;
401 }
402 STATE_ARCHITECTURE (sd) = ap;
403 break;
404 }
405
406 case OPTION_ARCHITECTURE_INFO:
407 {
408 const char **list = bfd_arch_list();
409 const char **lp;
410 if (list == NULL)
411 abort ();
412 sim_io_printf (sd, "Possible architectures:");
413 for (lp = list; *lp != NULL; lp++)
414 sim_io_printf (sd, " %s", *lp);
415 sim_io_printf (sd, "\n");
416 free (list);
417 break;
418 }
419
420 case OPTION_TARGET:
421 {
422 STATE_TARGET (sd) = xstrdup (arg);
423 break;
424 }
425
43e526b9
JM		 426 case OPTION_LOAD_LMA:
427 {
428 STATE_LOAD_AT_LMA_P (sd) = 1;
429 break;
430 }
431
432 case OPTION_LOAD_VMA:
433 {
434 STATE_LOAD_AT_LMA_P (sd) = 0;
435 break;
436 }
437
c906108c
SS		 438 case OPTION_HELP:
439 sim_print_help (sd, is_command);
440 if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
441 exit (0);
442 /* FIXME: 'twould be nice to do something similar if gdb. */
443 break;
444 }
445
446 return SIM_RC_OK;
447}
448
449/* Add the standard option list to the simulator. */
450
451SIM_RC
452standard_install (SIM_DESC sd)
453{
454 SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
455 if (sim_add_option_table (sd, NULL, standard_options) != SIM_RC_OK)
456 return SIM_RC_FAIL;
43e526b9
JM		 457#ifdef SIM_HANDLES_LMA
458 STATE_LOAD_AT_LMA_P (sd) = SIM_HANDLES_LMA;
459#endif
c906108c
SS		 460 return SIM_RC_OK;
461}
462
463/* Return non-zero if arg is a duplicate argument.
464 If ARG is NULL, initialize. */
465
466#define ARG_HASH_SIZE 97
467#define ARG_HASH(a) ((256 * (unsigned char) a[0] + (unsigned char) a[1]) % ARG_HASH_SIZE)
468
469static int
470dup_arg_p (arg)
471 char *arg;
472{
473 int hash;
474 static char **arg_table = NULL;
475
476 if (arg == NULL)
477 {
478 if (arg_table == NULL)
479 arg_table = (char **) xmalloc (ARG_HASH_SIZE * sizeof (char *));
480 memset (arg_table, 0, ARG_HASH_SIZE * sizeof (char *));
481 return 0;
482 }
483
484 hash = ARG_HASH (arg);
485 while (arg_table[hash] != NULL)
486 {
487 if (strcmp (arg, arg_table[hash]) == 0)
488 return 1;
489 /* We assume there won't be more than ARG_HASH_SIZE arguments so we
490 don't check if the table is full. */
491 if (++hash == ARG_HASH_SIZE)
492 hash = 0;
493 }
494 arg_table[hash] = arg;
495 return 0;
496}
497
498/* Called by sim_open to parse the arguments. */
499
500SIM_RC
501sim_parse_args (sd, argv)
502 SIM_DESC sd;
503 char **argv;
504{
505 int c, i, argc, num_opts;
506 char *p, *short_options;
507 /* The `val' option struct entry is dynamically assigned for options that
508 only come in the long form. ORIG_VAL is used to get the original value
509 back. */
510 int *orig_val;
511 struct option *lp, *long_options;
512 const struct option_list *ol;
513 const OPTION *opt;
514 OPTION_HANDLER **handlers;
515 sim_cpu **opt_cpu;
7c070881 516 SIM_RC result = SIM_RC_OK;
c906108c
SS		 517
518 /* Count the number of arguments. */
519 for (argc = 0; argv[argc] != NULL; ++argc)
520 continue;
521
522 /* Count the number of options. */
523 num_opts = 0;
524 for (ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next)
525 for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
526 ++num_opts;
527 for (i = 0; i < MAX_NR_PROCESSORS; ++i)
528 for (ol = CPU_OPTIONS (STATE_CPU (sd, i)); ol != NULL; ol = ol->next)
529 for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
530 ++num_opts;
531
532 /* Initialize duplicate argument checker. */
533 (void) dup_arg_p (NULL);
534
535 /* Build the option table for getopt. */
536
537 long_options = NZALLOC (struct option, num_opts + 1);
538 lp = long_options;
539 short_options = NZALLOC (char, num_opts * 3 + 1);
540 p = short_options;
541 handlers = NZALLOC (OPTION_HANDLER *, OPTION_START + num_opts);
542 orig_val = NZALLOC (int, OPTION_START + num_opts);
543 opt_cpu = NZALLOC (sim_cpu *, OPTION_START + num_opts);
544
545 /* Set '+' as first char so argument permutation isn't done. This
546 is done to stop getopt_long returning options that appear after
547 the target program. Such options should be passed unchanged into
548 the program image. */
549 *p++ = '+';
550
551 for (i = OPTION_START, ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next)
552 for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
553 {
554 if (dup_arg_p (opt->opt.name))
555 continue;
556 if (opt->shortopt != 0)
557 {
558 *p++ = opt->shortopt;
559 if (opt->opt.has_arg == required_argument)
560 *p++ = ':';
561 else if (opt->opt.has_arg == optional_argument)
562 { *p++ = ':'; *p++ = ':'; }
563 handlers[(unsigned char) opt->shortopt] = opt->handler;
564 if (opt->opt.val != 0)
565 orig_val[(unsigned char) opt->shortopt] = opt->opt.val;
566 else
567 orig_val[(unsigned char) opt->shortopt] = opt->shortopt;
568 }
569 if (opt->opt.name != NULL)
570 {
571 *lp = opt->opt;
572 /* Dynamically assign `val' numbers for long options. */
573 lp->val = i++;
574 handlers[lp->val] = opt->handler;
575 orig_val[lp->val] = opt->opt.val;
576 opt_cpu[lp->val] = NULL;
577 ++lp;
578 }
579 }
580
581 for (c = 0; c < MAX_NR_PROCESSORS; ++c)
582 {
583 sim_cpu *cpu = STATE_CPU (sd, c);
584 for (ol = CPU_OPTIONS (cpu); ol != NULL; ol = ol->next)
585 for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
586 {
587#if 0 /* Each option is prepended with --<cpuname>- so this greatly cuts down
588 on the need for dup_arg_p checking. Maybe in the future it'll be
589 needed so this is just commented out, and not deleted. */
590 if (dup_arg_p (opt->opt.name))
591 continue;
592#endif
593 /* Don't allow short versions of cpu specific options for now. */
594 if (opt->shortopt != 0)
595 {
596 sim_io_eprintf (sd, "internal error, short cpu specific option");
7c070881
SC		 597 result = SIM_RC_FAIL;
598 break;
c906108c
SS		 599 }
600 if (opt->opt.name != NULL)
601 {
602 char *name;
603 *lp = opt->opt;
604 /* Prepend --<cpuname>- to the option. */
605 asprintf (&name, "%s-%s", CPU_NAME (cpu), lp->name);
606 lp->name = name;
607 /* Dynamically assign `val' numbers for long options. */
608 lp->val = i++;
609 handlers[lp->val] = opt->handler;
610 orig_val[lp->val] = opt->opt.val;
611 opt_cpu[lp->val] = cpu;
612 ++lp;
613 }
614 }
615 }
616
617 /* Terminate the short and long option lists. */
618 *p = 0;
619 lp->name = NULL;
620
621 /* Ensure getopt is initialized. */
622 optind = 0;
623
624 while (1)
625 {
626 int longind, optc;
627
628 optc = getopt_long (argc, argv, short_options, long_options, &longind);
629 if (optc == -1)
630 {
631 if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
632 STATE_PROG_ARGV (sd) = dupargv (argv + optind);
633 break;
634 }
635 if (optc == '?')
7c070881
SC		 636 {
637 result = SIM_RC_FAIL;
638 break;
639 }
c906108c
SS		 640
641 if ((*handlers[optc]) (sd, opt_cpu[optc], orig_val[optc], optarg, 0/*!is_command*/) == SIM_RC_FAIL)
7c070881
SC		 642 {
643 result = SIM_RC_FAIL;
644 break;
645 }
c906108c
SS		 646 }
647
7c070881
SC		 648 zfree (long_options);
649 zfree (short_options);
650 zfree (handlers);
651 zfree (opt_cpu);
652 zfree (orig_val);
653 return result;
c906108c
SS		 654}
655
656/* Utility of sim_print_help to print a list of option tables. */
657
658static void
659print_help (SIM_DESC sd, sim_cpu *cpu, const struct option_list *ol, int is_command)
660{
661 const OPTION *opt;
662
663 for ( ; ol != NULL; ol = ol->next)
664 for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
665 {
666 const int indent = 30;
667 int comma, len;
668 const OPTION *o;
669
670 if (dup_arg_p (opt->opt.name))
671 continue;
672
673 if (opt->doc == NULL)
674 continue;
675
676 if (opt->doc_name != NULL && opt->doc_name [0] == '\0')
677 continue;
678
679 sim_io_printf (sd, " ");
680
681 comma = 0;
682 len = 2;
683
684 /* list any short options (aliases) for the current OPT */
685 if (!is_command)
686 {
687 o = opt;
688 do
689 {
690 if (o->shortopt != '\0')
691 {
692 sim_io_printf (sd, "%s-%c", comma ? ", " : "", o->shortopt);
693 len += (comma ? 2 : 0) + 2;
694 if (o->arg != NULL)
695 {
696 if (o->opt.has_arg == optional_argument)
697 {
698 sim_io_printf (sd, "[%s]", o->arg);
699 len += 1 + strlen (o->arg) + 1;
700 }
701 else
702 {
703 sim_io_printf (sd, " %s", o->arg);
704 len += 1 + strlen (o->arg);
705 }
706 }
707 comma = 1;
708 }
709 ++o;
710 }
711 while (OPTION_VALID_P (o) && o->doc == NULL);
712 }
713
714 /* list any long options (aliases) for the current OPT */
715 o = opt;
716 do
717 {
718 const char *name;
719 const char *cpu_prefix = cpu ? CPU_NAME (cpu) : NULL;
720 if (o->doc_name != NULL)
721 name = o->doc_name;
722 else
723 name = o->opt.name;
724 if (name != NULL)
725 {
726 sim_io_printf (sd, "%s%s%s%s%s",
727 comma ? ", " : "",
728 is_command ? "" : "--",
729 cpu ? cpu_prefix : "",
730 cpu ? "-" : "",
731 name);
732 len += ((comma ? 2 : 0)
733 + (is_command ? 0 : 2)
734 + strlen (name));
735 if (o->arg != NULL)
736 {
737 if (o->opt.has_arg == optional_argument)
738 {
c4093a6a 739 sim_io_printf (sd, "[=%s]", o->arg);
c906108c
SS		 740 len += 2 + strlen (o->arg) + 1;
741 }
742 else
743 {
744 sim_io_printf (sd, " %s", o->arg);
745 len += 1 + strlen (o->arg);
746 }
747 }
748 comma = 1;
749 }
750 ++o;
751 }
752 while (OPTION_VALID_P (o) && o->doc == NULL);
753
754 if (len >= indent)
755 {
756 sim_io_printf (sd, "\n%*s", indent, "");
757 }
758 else
759 sim_io_printf (sd, "%*s", indent - len, "");
760
761 /* print the description, word wrap long lines */
762 {
763 const char *chp = opt->doc;
764 unsigned doc_width = 80 - indent;
765 while (strlen (chp) >= doc_width) /* some slack */
766 {
767 const char *end = chp + doc_width - 1;
768 while (end > chp && !isspace (*end))
769 end --;
770 if (end == chp)
771 end = chp + doc_width - 1;
e158f0a0
AC		 772 /* The cast should be ok - its distances between to
773 points in a string. */
774 sim_io_printf (sd, "%.*s\n%*s", (int) (end - chp), chp, indent,
775 "");
c906108c
SS		 776 chp = end;
777 while (isspace (*chp) && *chp != '\0')
778 chp++;
779 }
780 sim_io_printf (sd, "%s\n", chp);
781 }
782 }
783}
784
785/* Print help messages for the options. */
786
787void
788sim_print_help (sd, is_command)
789 SIM_DESC sd;
790 int is_command;
791{
792 if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
793 sim_io_printf (sd, "Usage: %s [options] program [program args]\n",
794 STATE_MY_NAME (sd));
795
796 /* Initialize duplicate argument checker. */
797 (void) dup_arg_p (NULL);
798
799 if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
800 sim_io_printf (sd, "Options:\n");
801 else
802 sim_io_printf (sd, "Commands:\n");
803
804 print_help (sd, NULL, STATE_OPTIONS (sd), is_command);
805 sim_io_printf (sd, "\n");
806
807 /* Print cpu-specific options. */
808 {
809 int i;
810
811 for (i = 0; i < MAX_NR_PROCESSORS; ++i)
812 {
813 sim_cpu *cpu = STATE_CPU (sd, i);
814 if (CPU_OPTIONS (cpu) == NULL)
815 continue;
816 sim_io_printf (sd, "CPU %s specific options:\n", CPU_NAME (cpu));
817 print_help (sd, cpu, CPU_OPTIONS (cpu), is_command);
818 sim_io_printf (sd, "\n");
819 }
820 }
821
822 sim_io_printf (sd, "Note: Depending on the simulator configuration some %ss\n",
823 STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE ? "option" : "command");
824 sim_io_printf (sd, " may not be applicable\n");
825
826 if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
827 {
828 sim_io_printf (sd, "\n");
829 sim_io_printf (sd, "program args Arguments to pass to simulated program.\n");
830 sim_io_printf (sd, " Note: Very few simulators support this.\n");
831 }
832}
833
834/* Utility of sim_args_command to find the closest match for a command.
835 Commands that have "-" in them can be specified as separate words.
836 e.g. sim memory-region 0x800000,0x4000
837 or sim memory region 0x800000,0x4000
838 If CPU is non-null, use its option table list, otherwise use the main one.
839 *PARGI is where to start looking in ARGV. It is updated to point past
840 the found option. */
841
842static const OPTION *
843find_match (SIM_DESC sd, sim_cpu *cpu, char *argv[], int *pargi)
844{
845 const struct option_list *ol;
846 const OPTION *opt;
847 /* most recent option match */
848 const OPTION *matching_opt = NULL;
849 int matching_argi = -1;
850
851 if (cpu)
852 ol = CPU_OPTIONS (cpu);
853 else
854 ol = STATE_OPTIONS (sd);
855
856 /* Skip passed elements specified by *PARGI. */
857 argv += *pargi;
858
859 for ( ; ol != NULL; ol = ol->next)
860 for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
861 {
862 int argi = 0;
863 const char *name = opt->opt.name;
864 if (name == NULL)
865 continue;
866 while (argv [argi] != NULL
867 && strncmp (name, argv [argi], strlen (argv [argi])) == 0)
868 {
869 name = &name [strlen (argv[argi])];
870 if (name [0] == '-')
871 {
872 /* leading match ...<a-b-c>-d-e-f - continue search */
873 name ++; /* skip `-' */
874 argi ++;
875 continue;
876 }
877 else if (name [0] == '\0')
878 {
879 /* exact match ...<a-b-c-d-e-f> - better than before? */
880 if (argi > matching_argi)
881 {
882 matching_argi = argi;
883 matching_opt = opt;
884 }
885 break;
886 }
887 else
888 break;
889 }
890 }
891
892 *pargi = matching_argi;
893 return matching_opt;
894}
895
896SIM_RC
897sim_args_command (SIM_DESC sd, char *cmd)
898{
899 /* something to do? */
900 if (cmd == NULL)
901 return SIM_RC_OK; /* FIXME - perhaphs help would be better */
902
903 if (cmd [0] == '-')
904 {
905 /* user specified -<opt> ... form? */
906 char **argv = buildargv (cmd);
907 SIM_RC rc = sim_parse_args (sd, argv);
908 freeargv (argv);
909 return rc;
910 }
911 else
912 {
913 char **argv = buildargv (cmd);
914 const OPTION *matching_opt = NULL;
915 int matching_argi;
916 sim_cpu *cpu;
917
918 if (argv [0] == NULL)
919 return SIM_RC_OK; /* FIXME - perhaphs help would be better */
920
921 /* First check for a cpu selector. */
922 {
923 char *cpu_name = xstrdup (argv[0]);
924 char *hyphen = strchr (cpu_name, '-');
925 if (hyphen)
926 *hyphen = 0;
927 cpu = sim_cpu_lookup (sd, cpu_name);
928 if (cpu)
929 {
930 /* If <cpuname>-<command>, point argv[0] at <command>. */
931 if (hyphen)
932 {
933 matching_argi = 0;
934 argv[0] += hyphen - cpu_name + 1;
935 }
936 else
937 matching_argi = 1;
938 matching_opt = find_match (sd, cpu, argv, &matching_argi);
939 /* If hyphen found restore argv[0]. */
940 if (hyphen)
941 argv[0] -= hyphen - cpu_name + 1;
942 }
943 free (cpu_name);
944 }
945
946 /* If that failed, try the main table. */
947 if (matching_opt == NULL)
948 {
949 matching_argi = 0;
950 matching_opt = find_match (sd, NULL, argv, &matching_argi);
951 }
952
953 if (matching_opt != NULL)
954 {
955 switch (matching_opt->opt.has_arg)
956 {
957 case no_argument:
958 if (argv [matching_argi + 1] == NULL)
959 matching_opt->handler (sd, cpu, matching_opt->opt.val,
960 NULL, 1/*is_command*/);
961 else
962 sim_io_eprintf (sd, "Command `%s' takes no arguments\n",
963 matching_opt->opt.name);
964 break;
965 case optional_argument:
966 if (argv [matching_argi + 1] == NULL)
967 matching_opt->handler (sd, cpu, matching_opt->opt.val,
968 NULL, 1/*is_command*/);
969 else if (argv [matching_argi + 2] == NULL)
970 matching_opt->handler (sd, cpu, matching_opt->opt.val,
971 argv [matching_argi + 1], 1/*is_command*/);
972 else
973 sim_io_eprintf (sd, "Command `%s' requires no more than one argument\n",
974 matching_opt->opt.name);
975 break;
976 case required_argument:
977 if (argv [matching_argi + 1] == NULL)
978 sim_io_eprintf (sd, "Command `%s' requires an argument\n",
979 matching_opt->opt.name);
980 else if (argv [matching_argi + 2] == NULL)
981 matching_opt->handler (sd, cpu, matching_opt->opt.val,
982 argv [matching_argi + 1], 1/*is_command*/);
983 else
984 sim_io_eprintf (sd, "Command `%s' requires only one argument\n",
985 matching_opt->opt.name);
986 }
987 freeargv (argv);
988 return SIM_RC_OK;
989 }
990
991 freeargv (argv);
992 }
993
994 /* didn't find anything that remotly matched */
995 return SIM_RC_FAIL;
996}
GDB Binutils - Deliverables
This page took 0.225623 seconds and 4 git commands to generate.