1 /* Simulator option handling.
2 Copyright (C) 1996-2014 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
5 This file is part of GDB, the GNU debugger.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
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.
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/>. */
32 #include "libiberty.h"
33 #include "sim-options.h"
35 #include "sim-assert.h"
39 /* Add a set of options to the simulator.
40 TABLE is an array of OPTIONS terminated by a NULL `opt.name' entry.
41 This is intended to be called by modules in their `install' handler. */
44 sim_add_option_table (SIM_DESC sd, sim_cpu *cpu, const OPTION *table)
46 struct option_list *ol = ((struct option_list *)
47 xmalloc (sizeof (struct option_list)));
49 /* Note: The list is constructed in the reverse order we're called so
50 later calls will override earlier ones (in case that ever happens).
51 This is the intended behaviour. */
55 ol->next = CPU_OPTIONS (cpu);
57 CPU_OPTIONS (cpu) = ol;
61 ol->next = STATE_OPTIONS (sd);
63 STATE_OPTIONS (sd) = ol;
69 /* Standard option table.
70 Modules may specify additional ones.
71 The caller of sim_parse_args may also specify additional options
72 by calling sim_add_option_table first. */
74 static DECLARE_OPTION_HANDLER (standard_option_handler);
76 /* FIXME: We shouldn't print in --help output options that aren't usable.
77 Some fine tuning will be necessary. One can either move less general
78 options to another table or use a HAVE_FOO macro to ifdef out unavailable
81 /* ??? One might want to conditionally compile out the entries that
82 aren't enabled. There's a distinction, however, between options a
83 simulator can't support and options that haven't been configured in.
84 Certainly options a simulator can't support shouldn't appear in the
85 output of --help. Whether the same thing applies to options that haven't
86 been configured in or not isn't something I can get worked up over.
87 [Note that conditionally compiling them out might simply involve moving
88 the option to another table.]
89 If you decide to conditionally compile them out as well, delete this
90 comment and add a comment saying that that is the rule. */
93 OPTION_DEBUG_INSN = OPTION_START,
98 OPTION_ARCHITECTURE_INFO,
104 #ifdef SIM_HAVE_FLATMEM
108 #ifdef SIM_H8300 /* FIXME: Should be movable to h8300 dir. */
118 static const OPTION standard_options[] =
120 { {"verbose", no_argument, NULL, OPTION_VERBOSE},
121 'v', NULL, "Verbose output",
122 standard_option_handler, NULL },
124 { {"endian", required_argument, NULL, OPTION_ENDIAN},
125 'E', "big|little", "Set endianness",
126 standard_option_handler, NULL },
128 #ifdef SIM_HAVE_ENVIRONMENT
129 /* This option isn't supported unless all choices are supported in keeping
130 with the goal of not printing in --help output things the simulator can't
131 do [as opposed to things that just haven't been configured in]. */
132 { {"environment", required_argument, NULL, OPTION_ENVIRONMENT},
133 '\0', "user|virtual|operating", "Set running environment",
134 standard_option_handler },
137 { {"alignment", required_argument, NULL, OPTION_ALIGNMENT},
138 '\0', "strict|nonstrict|forced", "Set memory access alignment",
139 standard_option_handler },
141 { {"debug", no_argument, NULL, OPTION_DEBUG},
142 'D', NULL, "Print debugging messages",
143 standard_option_handler },
144 { {"debug-insn", no_argument, NULL, OPTION_DEBUG_INSN},
145 '\0', NULL, "Print instruction debugging messages",
146 standard_option_handler },
147 { {"debug-file", required_argument, NULL, OPTION_DEBUG_FILE},
148 '\0', "FILE NAME", "Specify debugging output file",
149 standard_option_handler },
151 #ifdef SIM_H8300 /* FIXME: Should be movable to h8300 dir. */
152 { {"h8300h", no_argument, NULL, OPTION_H8300H},
153 'h', NULL, "Indicate the CPU is H8/300H",
154 standard_option_handler },
155 { {"h8300s", no_argument, NULL, OPTION_H8300S},
156 'S', NULL, "Indicate the CPU is H8S",
157 standard_option_handler },
158 { {"h8300sx", no_argument, NULL, OPTION_H8300SX},
159 'x', NULL, "Indicate the CPU is H8SX",
160 standard_option_handler },
163 #ifdef SIM_HAVE_FLATMEM
164 { {"mem-size", required_argument, NULL, OPTION_MEM_SIZE},
165 'm', "<size>[in bytes, Kb (k suffix), Mb (m suffix) or Gb (g suffix)]",
166 "Specify memory size", standard_option_handler },
169 { {"do-command", required_argument, NULL, OPTION_DO_COMMAND},
170 '\0', "COMMAND", ""/*undocumented*/,
171 standard_option_handler },
173 { {"help", no_argument, NULL, OPTION_HELP},
174 'H', NULL, "Print help information",
175 standard_option_handler },
177 { {"architecture", required_argument, NULL, OPTION_ARCHITECTURE},
178 '\0', "MACHINE", "Specify the architecture to use",
179 standard_option_handler },
180 { {"architecture-info", no_argument, NULL, OPTION_ARCHITECTURE_INFO},
181 '\0', NULL, "List supported architectures",
182 standard_option_handler },
183 { {"info-architecture", no_argument, NULL, OPTION_ARCHITECTURE_INFO},
185 standard_option_handler },
187 { {"target", required_argument, NULL, OPTION_TARGET},
188 '\0', "BFDNAME", "Specify the object-code format for the object files",
189 standard_option_handler },
191 #ifdef SIM_HANDLES_LMA
192 { {"load-lma", no_argument, NULL, OPTION_LOAD_LMA},
195 "Use VMA or LMA addresses when loading image (default LMA)",
197 "Use VMA or LMA addresses when loading image (default VMA)",
199 standard_option_handler, "load-{lma,vma}" },
200 { {"load-vma", no_argument, NULL, OPTION_LOAD_VMA},
201 '\0', NULL, "", standard_option_handler, "" },
204 { {"sysroot", required_argument, NULL, OPTION_SYSROOT},
206 "Root for system calls with absolute file-names and cwd at start",
207 standard_option_handler, NULL },
209 { {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL, NULL }
213 standard_option_handler (SIM_DESC sd, sim_cpu *cpu, int opt,
214 char *arg, int is_command)
218 switch ((STANDARD_OPTIONS) opt)
221 STATE_VERBOSE_P (sd) = 1;
225 if (strcmp (arg, "big") == 0)
227 if (WITH_TARGET_BYTE_ORDER == LITTLE_ENDIAN)
229 sim_io_eprintf (sd, "Simulator compiled for little endian only.\n");
232 /* FIXME:wip: Need to set something in STATE_CONFIG. */
233 current_target_byte_order = BIG_ENDIAN;
235 else if (strcmp (arg, "little") == 0)
237 if (WITH_TARGET_BYTE_ORDER == BIG_ENDIAN)
239 sim_io_eprintf (sd, "Simulator compiled for big endian only.\n");
242 /* FIXME:wip: Need to set something in STATE_CONFIG. */
243 current_target_byte_order = LITTLE_ENDIAN;
247 sim_io_eprintf (sd, "Invalid endian specification `%s'\n", arg);
252 case OPTION_ENVIRONMENT:
253 if (strcmp (arg, "user") == 0)
254 STATE_ENVIRONMENT (sd) = USER_ENVIRONMENT;
255 else if (strcmp (arg, "virtual") == 0)
256 STATE_ENVIRONMENT (sd) = VIRTUAL_ENVIRONMENT;
257 else if (strcmp (arg, "operating") == 0)
258 STATE_ENVIRONMENT (sd) = OPERATING_ENVIRONMENT;
261 sim_io_eprintf (sd, "Invalid environment specification `%s'\n", arg);
264 if (WITH_ENVIRONMENT != ALL_ENVIRONMENT
265 && WITH_ENVIRONMENT != STATE_ENVIRONMENT (sd))
268 switch (WITH_ENVIRONMENT)
270 case USER_ENVIRONMENT: type = "user"; break;
271 case VIRTUAL_ENVIRONMENT: type = "virtual"; break;
272 case OPERATING_ENVIRONMENT: type = "operating"; break;
274 sim_io_eprintf (sd, "Simulator compiled for the %s environment only.\n",
280 case OPTION_ALIGNMENT:
281 if (strcmp (arg, "strict") == 0)
283 if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == STRICT_ALIGNMENT)
285 current_alignment = STRICT_ALIGNMENT;
289 else if (strcmp (arg, "nonstrict") == 0)
291 if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == NONSTRICT_ALIGNMENT)
293 current_alignment = NONSTRICT_ALIGNMENT;
297 else if (strcmp (arg, "forced") == 0)
299 if (WITH_ALIGNMENT == 0 || WITH_ALIGNMENT == FORCED_ALIGNMENT)
301 current_alignment = FORCED_ALIGNMENT;
307 sim_io_eprintf (sd, "Invalid alignment specification `%s'\n", arg);
310 switch (WITH_ALIGNMENT)
312 case STRICT_ALIGNMENT:
313 sim_io_eprintf (sd, "Simulator compiled for strict alignment only.\n");
315 case NONSTRICT_ALIGNMENT:
316 sim_io_eprintf (sd, "Simulator compiled for nonstrict alignment only.\n");
318 case FORCED_ALIGNMENT:
319 sim_io_eprintf (sd, "Simulator compiled for forced alignment only.\n");
326 sim_io_eprintf (sd, "Debugging not compiled in, `-D' ignored\n");
329 for (n = 0; n < MAX_NR_PROCESSORS; ++n)
330 for (i = 0; i < MAX_DEBUG_VALUES; ++i)
331 CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[i] = 1;
335 case OPTION_DEBUG_INSN :
337 sim_io_eprintf (sd, "Debugging not compiled in, `--debug-insn' ignored\n");
340 for (n = 0; n < MAX_NR_PROCESSORS; ++n)
341 CPU_DEBUG_FLAGS (STATE_CPU (sd, n))[DEBUG_INSN_IDX] = 1;
345 case OPTION_DEBUG_FILE :
347 sim_io_eprintf (sd, "Debugging not compiled in, `--debug-file' ignored\n");
350 FILE *f = fopen (arg, "w");
354 sim_io_eprintf (sd, "Unable to open debug output file `%s'\n", arg);
357 for (n = 0; n < MAX_NR_PROCESSORS; ++n)
358 CPU_DEBUG_FILE (STATE_CPU (sd, n)) = f;
362 #ifdef SIM_H8300 /* FIXME: Can be moved to h8300 dir. */
364 set_h8300h (bfd_mach_h8300h);
367 set_h8300h (bfd_mach_h8300s);
370 set_h8300h (bfd_mach_h8300sx);
374 #ifdef SIM_HAVE_FLATMEM
375 case OPTION_MEM_SIZE:
378 unsigned long ul = strtol (arg, &endp, 0);
382 case 'k': case 'K': size <<= 10; break;
383 case 'm': case 'M': size <<= 20; break;
384 case 'g': case 'G': size <<= 30; break;
385 case ' ': case '\0': case '\t': break;
388 sim_io_eprintf (sd, "Ignoring strange character at end of memory size: %c\n", * endp);
392 /* 16384: some minimal amount */
393 if (! isdigit (arg[0]) || ul < 16384)
395 sim_io_eprintf (sd, "Invalid memory size `%s'", arg);
398 STATE_MEM_SIZE (sd) = ul;
403 case OPTION_DO_COMMAND:
404 sim_do_command (sd, arg);
407 case OPTION_ARCHITECTURE:
409 const struct bfd_arch_info *ap = bfd_scan_arch (arg);
412 sim_io_eprintf (sd, "Architecture `%s' unknown\n", arg);
415 STATE_ARCHITECTURE (sd) = ap;
419 case OPTION_ARCHITECTURE_INFO:
421 const char **list = bfd_arch_list ();
425 sim_io_printf (sd, "Possible architectures:");
426 for (lp = list; *lp != NULL; lp++)
427 sim_io_printf (sd, " %s", *lp);
428 sim_io_printf (sd, "\n");
435 STATE_TARGET (sd) = xstrdup (arg);
439 case OPTION_LOAD_LMA:
441 STATE_LOAD_AT_LMA_P (sd) = 1;
445 case OPTION_LOAD_VMA:
447 STATE_LOAD_AT_LMA_P (sd) = 0;
452 sim_print_help (sd, is_command);
453 if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
455 /* FIXME: 'twould be nice to do something similar if gdb. */
459 /* Don't leak memory in the odd event that there's lots of
460 --sysroot=... options. We treat "" specially since this
461 is the statically initialized value and cannot free it. */
462 if (simulator_sysroot[0] != '\0')
463 free (simulator_sysroot);
465 simulator_sysroot = xstrdup (arg);
467 simulator_sysroot = "";
474 /* Add the standard option list to the simulator. */
477 standard_install (SIM_DESC sd)
479 SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
480 if (sim_add_option_table (sd, NULL, standard_options) != SIM_RC_OK)
482 #ifdef SIM_HANDLES_LMA
483 STATE_LOAD_AT_LMA_P (sd) = SIM_HANDLES_LMA;
488 /* Return non-zero if arg is a duplicate argument.
489 If ARG is NULL, initialize. */
491 #define ARG_HASH_SIZE 97
492 #define ARG_HASH(a) ((256 * (unsigned char) a[0] + (unsigned char) a[1]) % ARG_HASH_SIZE)
495 dup_arg_p (const char *arg)
498 static const char **arg_table = NULL;
502 if (arg_table == NULL)
503 arg_table = (const char **) xmalloc (ARG_HASH_SIZE * sizeof (char *));
504 memset (arg_table, 0, ARG_HASH_SIZE * sizeof (char *));
508 hash = ARG_HASH (arg);
509 while (arg_table[hash] != NULL)
511 if (strcmp (arg, arg_table[hash]) == 0)
513 /* We assume there won't be more than ARG_HASH_SIZE arguments so we
514 don't check if the table is full. */
515 if (++hash == ARG_HASH_SIZE)
518 arg_table[hash] = arg;
522 /* Called by sim_open to parse the arguments. */
525 sim_parse_args (SIM_DESC sd, char **argv)
527 int c, i, argc, num_opts;
528 char *p, *short_options;
529 /* The `val' option struct entry is dynamically assigned for options that
530 only come in the long form. ORIG_VAL is used to get the original value
533 struct option *lp, *long_options;
534 const struct option_list *ol;
536 OPTION_HANDLER **handlers;
538 SIM_RC result = SIM_RC_OK;
540 /* Count the number of arguments. */
541 for (argc = 0; argv[argc] != NULL; ++argc)
544 /* Count the number of options. */
546 for (ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next)
547 for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
549 for (i = 0; i < MAX_NR_PROCESSORS; ++i)
550 for (ol = CPU_OPTIONS (STATE_CPU (sd, i)); ol != NULL; ol = ol->next)
551 for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
554 /* Initialize duplicate argument checker. */
555 (void) dup_arg_p (NULL);
557 /* Build the option table for getopt. */
559 long_options = NZALLOC (struct option, num_opts + 1);
561 short_options = NZALLOC (char, num_opts * 3 + 1);
563 handlers = NZALLOC (OPTION_HANDLER *, OPTION_START + num_opts);
564 orig_val = NZALLOC (int, OPTION_START + num_opts);
565 opt_cpu = NZALLOC (sim_cpu *, OPTION_START + num_opts);
567 /* Set '+' as first char so argument permutation isn't done. This
568 is done to stop getopt_long returning options that appear after
569 the target program. Such options should be passed unchanged into
570 the program image. */
573 for (i = OPTION_START, ol = STATE_OPTIONS (sd); ol != NULL; ol = ol->next)
574 for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
576 if (dup_arg_p (opt->opt.name))
578 if (opt->shortopt != 0)
580 *p++ = opt->shortopt;
581 if (opt->opt.has_arg == required_argument)
583 else if (opt->opt.has_arg == optional_argument)
584 { *p++ = ':'; *p++ = ':'; }
585 handlers[(unsigned char) opt->shortopt] = opt->handler;
586 if (opt->opt.val != 0)
587 orig_val[(unsigned char) opt->shortopt] = opt->opt.val;
589 orig_val[(unsigned char) opt->shortopt] = opt->shortopt;
591 if (opt->opt.name != NULL)
594 /* Dynamically assign `val' numbers for long options. */
596 handlers[lp->val] = opt->handler;
597 orig_val[lp->val] = opt->opt.val;
598 opt_cpu[lp->val] = NULL;
603 for (c = 0; c < MAX_NR_PROCESSORS; ++c)
605 sim_cpu *cpu = STATE_CPU (sd, c);
606 for (ol = CPU_OPTIONS (cpu); ol != NULL; ol = ol->next)
607 for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
609 #if 0 /* Each option is prepended with --<cpuname>- so this greatly cuts down
610 on the need for dup_arg_p checking. Maybe in the future it'll be
611 needed so this is just commented out, and not deleted. */
612 if (dup_arg_p (opt->opt.name))
615 /* Don't allow short versions of cpu specific options for now. */
616 if (opt->shortopt != 0)
618 sim_io_eprintf (sd, "internal error, short cpu specific option");
619 result = SIM_RC_FAIL;
622 if (opt->opt.name != NULL)
626 /* Prepend --<cpuname>- to the option. */
627 if (asprintf (&name, "%s-%s", CPU_NAME (cpu), lp->name) < 0)
629 sim_io_eprintf (sd, "internal error, out of memory");
630 result = SIM_RC_FAIL;
634 /* Dynamically assign `val' numbers for long options. */
636 handlers[lp->val] = opt->handler;
637 orig_val[lp->val] = opt->opt.val;
638 opt_cpu[lp->val] = cpu;
644 /* Terminate the short and long option lists. */
648 /* Ensure getopt is initialized. */
655 optc = getopt_long (argc, argv, short_options, long_options, &longind);
658 if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
659 STATE_PROG_ARGV (sd) = dupargv (argv + optind);
664 result = SIM_RC_FAIL;
668 if ((*handlers[optc]) (sd, opt_cpu[optc], orig_val[optc], optarg, 0/*!is_command*/) == SIM_RC_FAIL)
670 result = SIM_RC_FAIL;
676 free (short_options);
683 /* Utility of sim_print_help to print a list of option tables. */
686 print_help (SIM_DESC sd, sim_cpu *cpu, const struct option_list *ol, int is_command)
690 for ( ; ol != NULL; ol = ol->next)
691 for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
693 const int indent = 30;
697 if (dup_arg_p (opt->opt.name))
700 if (opt->doc == NULL)
703 if (opt->doc_name != NULL && opt->doc_name [0] == '\0')
706 sim_io_printf (sd, " ");
711 /* list any short options (aliases) for the current OPT */
717 if (o->shortopt != '\0')
719 sim_io_printf (sd, "%s-%c", comma ? ", " : "", o->shortopt);
720 len += (comma ? 2 : 0) + 2;
723 if (o->opt.has_arg == optional_argument)
725 sim_io_printf (sd, "[%s]", o->arg);
726 len += 1 + strlen (o->arg) + 1;
730 sim_io_printf (sd, " %s", o->arg);
731 len += 1 + strlen (o->arg);
738 while (OPTION_VALID_P (o) && o->doc == NULL);
741 /* list any long options (aliases) for the current OPT */
746 const char *cpu_prefix = cpu ? CPU_NAME (cpu) : NULL;
747 if (o->doc_name != NULL)
753 sim_io_printf (sd, "%s%s%s%s%s",
755 is_command ? "" : "--",
756 cpu ? cpu_prefix : "",
759 len += ((comma ? 2 : 0)
760 + (is_command ? 0 : 2)
764 if (o->opt.has_arg == optional_argument)
766 sim_io_printf (sd, "[=%s]", o->arg);
767 len += 2 + strlen (o->arg) + 1;
771 sim_io_printf (sd, " %s", o->arg);
772 len += 1 + strlen (o->arg);
779 while (OPTION_VALID_P (o) && o->doc == NULL);
783 sim_io_printf (sd, "\n%*s", indent, "");
786 sim_io_printf (sd, "%*s", indent - len, "");
788 /* print the description, word wrap long lines */
790 const char *chp = opt->doc;
791 unsigned doc_width = 80 - indent;
792 while (strlen (chp) >= doc_width) /* some slack */
794 const char *end = chp + doc_width - 1;
795 while (end > chp && !isspace (*end))
798 end = chp + doc_width - 1;
799 /* The cast should be ok - its distances between to
800 points in a string. */
801 sim_io_printf (sd, "%.*s\n%*s", (int) (end - chp), chp, indent,
804 while (isspace (*chp) && *chp != '\0')
807 sim_io_printf (sd, "%s\n", chp);
812 /* Print help messages for the options. */
815 sim_print_help (SIM_DESC sd, int is_command)
817 if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
818 sim_io_printf (sd, "Usage: %s [options] program [program args]\n",
821 /* Initialize duplicate argument checker. */
822 (void) dup_arg_p (NULL);
824 if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
825 sim_io_printf (sd, "Options:\n");
827 sim_io_printf (sd, "Commands:\n");
829 print_help (sd, NULL, STATE_OPTIONS (sd), is_command);
830 sim_io_printf (sd, "\n");
832 /* Print cpu-specific options. */
836 for (i = 0; i < MAX_NR_PROCESSORS; ++i)
838 sim_cpu *cpu = STATE_CPU (sd, i);
839 if (CPU_OPTIONS (cpu) == NULL)
841 sim_io_printf (sd, "CPU %s specific options:\n", CPU_NAME (cpu));
842 print_help (sd, cpu, CPU_OPTIONS (cpu), is_command);
843 sim_io_printf (sd, "\n");
847 sim_io_printf (sd, "Note: Depending on the simulator configuration some %ss\n",
848 STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE ? "option" : "command");
849 sim_io_printf (sd, " may not be applicable\n");
851 if (STATE_OPEN_KIND (sd) == SIM_OPEN_STANDALONE)
853 sim_io_printf (sd, "\n");
854 sim_io_printf (sd, "program args Arguments to pass to simulated program.\n");
855 sim_io_printf (sd, " Note: Very few simulators support this.\n");
859 /* Utility of sim_args_command to find the closest match for a command.
860 Commands that have "-" in them can be specified as separate words.
861 e.g. sim memory-region 0x800000,0x4000
862 or sim memory region 0x800000,0x4000
863 If CPU is non-null, use its option table list, otherwise use the main one.
864 *PARGI is where to start looking in ARGV. It is updated to point past
867 static const OPTION *
868 find_match (SIM_DESC sd, sim_cpu *cpu, char *argv[], int *pargi)
870 const struct option_list *ol;
872 /* most recent option match */
873 const OPTION *matching_opt = NULL;
874 int matching_argi = -1;
877 ol = CPU_OPTIONS (cpu);
879 ol = STATE_OPTIONS (sd);
881 /* Skip passed elements specified by *PARGI. */
884 for ( ; ol != NULL; ol = ol->next)
885 for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
888 const char *name = opt->opt.name;
891 while (argv [argi] != NULL
892 && strncmp (name, argv [argi], strlen (argv [argi])) == 0)
894 name = &name [strlen (argv[argi])];
897 /* leading match ...<a-b-c>-d-e-f - continue search */
898 name ++; /* skip `-' */
902 else if (name [0] == '\0')
904 /* exact match ...<a-b-c-d-e-f> - better than before? */
905 if (argi > matching_argi)
907 matching_argi = argi;
917 *pargi = matching_argi;
922 complete_option_list (char **ret, size_t *cnt, const struct option_list *ol,
923 const char *text, const char *word)
925 const OPTION *opt = NULL;
927 size_t len = strlen (word);
929 for ( ; ol != NULL; ol = ol->next)
930 for (opt = ol->options; OPTION_VALID_P (opt); ++opt)
932 const char *name = opt->opt.name;
934 /* A long option to match against? */
938 /* Does this option actually match? */
939 if (strncmp (name, word, len))
942 ret = xrealloc (ret, ++*cnt * sizeof (ret[0]));
943 ret[*cnt - 2] = xstrdup (name);
949 /* All leading text is stored in @text, while the current word being
950 completed is stored in @word. Trailing text of @word is not. */
953 sim_complete_command (SIM_DESC sd, const char *text, const char *word)
959 /* Only complete first word for now. */
963 cpu = STATE_CPU (sd, 0);
965 ret = complete_option_list (ret, &cnt, CPU_OPTIONS (cpu), text, word);
966 ret = complete_option_list (ret, &cnt, STATE_OPTIONS (sd), text, word);
974 sim_args_command (SIM_DESC sd, const char *cmd)
976 /* something to do? */
978 return SIM_RC_OK; /* FIXME - perhaps help would be better */
982 /* user specified -<opt> ... form? */
983 char **argv = buildargv (cmd);
984 SIM_RC rc = sim_parse_args (sd, argv);
990 char **argv = buildargv (cmd);
991 const OPTION *matching_opt = NULL;
995 if (argv [0] == NULL)
996 return SIM_RC_OK; /* FIXME - perhaps help would be better */
998 /* First check for a cpu selector. */
1000 char *cpu_name = xstrdup (argv[0]);
1001 char *hyphen = strchr (cpu_name, '-');
1004 cpu = sim_cpu_lookup (sd, cpu_name);
1007 /* If <cpuname>-<command>, point argv[0] at <command>. */
1011 argv[0] += hyphen - cpu_name + 1;
1015 matching_opt = find_match (sd, cpu, argv, &matching_argi);
1016 /* If hyphen found restore argv[0]. */
1018 argv[0] -= hyphen - cpu_name + 1;
1023 /* If that failed, try the main table. */
1024 if (matching_opt == NULL)
1027 matching_opt = find_match (sd, NULL, argv, &matching_argi);
1030 if (matching_opt != NULL)
1032 switch (matching_opt->opt.has_arg)
1035 if (argv [matching_argi + 1] == NULL)
1036 matching_opt->handler (sd, cpu, matching_opt->opt.val,
1037 NULL, 1/*is_command*/);
1039 sim_io_eprintf (sd, "Command `%s' takes no arguments\n",
1040 matching_opt->opt.name);
1042 case optional_argument:
1043 if (argv [matching_argi + 1] == NULL)
1044 matching_opt->handler (sd, cpu, matching_opt->opt.val,
1045 NULL, 1/*is_command*/);
1046 else if (argv [matching_argi + 2] == NULL)
1047 matching_opt->handler (sd, cpu, matching_opt->opt.val,
1048 argv [matching_argi + 1], 1/*is_command*/);
1050 sim_io_eprintf (sd, "Command `%s' requires no more than one argument\n",
1051 matching_opt->opt.name);
1053 case required_argument:
1054 if (argv [matching_argi + 1] == NULL)
1055 sim_io_eprintf (sd, "Command `%s' requires an argument\n",
1056 matching_opt->opt.name);
1057 else if (argv [matching_argi + 2] == NULL)
1058 matching_opt->handler (sd, cpu, matching_opt->opt.val,
1059 argv [matching_argi + 1], 1/*is_command*/);
1061 sim_io_eprintf (sd, "Command `%s' requires only one argument\n",
1062 matching_opt->opt.name);
1071 /* didn't find anything that remotly matched */