1 /* Simulator option handling.
2 Copyright (C) 1996, 1997 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 2, or (at your option)
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 along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
33 #include "libiberty.h"
34 #include "sim-options.h"
36 #include "sim-assert.h"
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. */
45 sim_add_option_table (SIM_DESC sd
, sim_cpu
*cpu
, const OPTION
*table
)
47 struct option_list
*ol
= ((struct option_list
*)
48 xmalloc (sizeof (struct option_list
)));
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. */
56 ol
->next
= CPU_OPTIONS (cpu
);
58 CPU_OPTIONS (cpu
) = ol
;
62 ol
->next
= STATE_OPTIONS (sd
);
64 STATE_OPTIONS (sd
) = ol
;
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. */
75 static DECLARE_OPTION_HANDLER (standard_option_handler
);
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
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. */
94 OPTION_DEBUG_INSN
= OPTION_START
,
99 OPTION_ARCHITECTURE_INFO
,
103 #if defined (SIM_HAVE_BIENDIAN)
107 #ifdef SIM_HAVE_FLATMEM
111 #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
},
124 #if defined (SIM_HAVE_BIENDIAN) /* ??? && WITH_TARGET_BYTE_ORDER == 0 */
125 { {"endian", required_argument
, NULL
, OPTION_ENDIAN
},
126 'E', "big|little", "Set endianness",
127 standard_option_handler
},
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
},
139 { {"alignment", required_argument
, NULL
, OPTION_ALIGNMENT
},
140 '\0', "strict|nonstrict|forced", "Set memory access alignment",
141 standard_option_handler
},
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
},
153 #ifdef SIM_H8300 /* FIXME: Should be movable to h8300 dir. */
154 { {"h8300h", no_argument
, NULL
, OPTION_H8300
},
155 'h', NULL
, "Indicate the CPU is h8/300h or h8/300s",
156 standard_option_handler
},
159 #ifdef SIM_HAVE_FLATMEM
160 { {"mem-size", required_argument
, NULL
, OPTION_MEM_SIZE
},
161 'm', "MEMORY SIZE", "Specify memory size",
162 standard_option_handler
},
165 { {"do-command", required_argument
, NULL
, OPTION_DO_COMMAND
},
166 '\0', "COMMAND", ""/*undocumented*/,
167 standard_option_handler
},
169 { {"help", no_argument
, NULL
, OPTION_HELP
},
170 'H', NULL
, "Print help information",
171 standard_option_handler
},
173 { {"architecture", required_argument
, NULL
, OPTION_ARCHITECTURE
},
174 '\0', "MACHINE", "Specify the architecture to use",
175 standard_option_handler
},
176 { {"architecture-info", no_argument
, NULL
, OPTION_ARCHITECTURE_INFO
},
177 '\0', NULL
, "List supported architectures",
178 standard_option_handler
},
179 { {"info-architecture", no_argument
, NULL
, OPTION_ARCHITECTURE_INFO
},
181 standard_option_handler
},
183 { {"target", required_argument
, NULL
, OPTION_TARGET
},
184 '\0', "BFDNAME", "Specify the object-code format for the object files",
185 standard_option_handler
},
187 #ifdef SIM_HANDLES_LMA
188 { {"load-lma", no_argument
, NULL
, OPTION_LOAD_LMA
},
191 "Use VMA or LMA addresses when loading image (default LMA)",
193 "Use VMA or LMA addresses when loading image (default VMA)",
195 standard_option_handler
, "load-{lma,vma}" },
196 { {"load-vma", no_argument
, NULL
, OPTION_LOAD_VMA
},
197 '\0', NULL
, "", standard_option_handler
, "" },
200 { {NULL
, no_argument
, NULL
, 0}, '\0', NULL
, NULL
, NULL
}
204 standard_option_handler (SIM_DESC sd
, sim_cpu
*cpu
, int opt
,
205 char *arg
, int is_command
)
209 switch ((STANDARD_OPTIONS
) opt
)
212 STATE_VERBOSE_P (sd
) = 1;
215 #ifdef SIM_HAVE_BIENDIAN
217 if (strcmp (arg
, "big") == 0)
219 if (WITH_TARGET_BYTE_ORDER
== LITTLE_ENDIAN
)
221 sim_io_eprintf (sd
, "Simulator compiled for little endian only.\n");
224 /* FIXME:wip: Need to set something in STATE_CONFIG. */
225 current_target_byte_order
= BIG_ENDIAN
;
227 else if (strcmp (arg
, "little") == 0)
229 if (WITH_TARGET_BYTE_ORDER
== BIG_ENDIAN
)
231 sim_io_eprintf (sd
, "Simulator compiled for big endian only.\n");
234 /* FIXME:wip: Need to set something in STATE_CONFIG. */
235 current_target_byte_order
= LITTLE_ENDIAN
;
239 sim_io_eprintf (sd
, "Invalid endian specification `%s'\n", arg
);
245 case OPTION_ENVIRONMENT
:
246 if (strcmp (arg
, "user") == 0)
247 STATE_ENVIRONMENT (sd
) = USER_ENVIRONMENT
;
248 else if (strcmp (arg
, "virtual") == 0)
249 STATE_ENVIRONMENT (sd
) = VIRTUAL_ENVIRONMENT
;
250 else if (strcmp (arg
, "operating") == 0)
251 STATE_ENVIRONMENT (sd
) = OPERATING_ENVIRONMENT
;
254 sim_io_eprintf (sd
, "Invalid environment specification `%s'\n", arg
);
257 if (WITH_ENVIRONMENT
!= ALL_ENVIRONMENT
258 && WITH_ENVIRONMENT
!= STATE_ENVIRONMENT (sd
))
261 switch (WITH_ENVIRONMENT
)
263 case USER_ENVIRONMENT
: type
= "user"; break;
264 case VIRTUAL_ENVIRONMENT
: type
= "virtual"; break;
265 case OPERATING_ENVIRONMENT
: type
= "operating"; break;
267 sim_io_eprintf (sd
, "Simulator compiled for the %s environment only.\n",
273 case OPTION_ALIGNMENT
:
274 if (strcmp (arg
, "strict") == 0)
276 if (WITH_ALIGNMENT
== 0 || WITH_ALIGNMENT
== STRICT_ALIGNMENT
)
278 current_alignment
= STRICT_ALIGNMENT
;
282 else if (strcmp (arg
, "nonstrict") == 0)
284 if (WITH_ALIGNMENT
== 0 || WITH_ALIGNMENT
== NONSTRICT_ALIGNMENT
)
286 current_alignment
= NONSTRICT_ALIGNMENT
;
290 else if (strcmp (arg
, "forced") == 0)
292 if (WITH_ALIGNMENT
== 0 || WITH_ALIGNMENT
== FORCED_ALIGNMENT
)
294 current_alignment
= FORCED_ALIGNMENT
;
300 sim_io_eprintf (sd
, "Invalid alignment specification `%s'\n", arg
);
303 switch (WITH_ALIGNMENT
)
305 case STRICT_ALIGNMENT
:
306 sim_io_eprintf (sd
, "Simulator compiled for strict alignment only.\n");
308 case NONSTRICT_ALIGNMENT
:
309 sim_io_eprintf (sd
, "Simulator compiled for nonstrict alignment only.\n");
311 case FORCED_ALIGNMENT
:
312 sim_io_eprintf (sd
, "Simulator compiled for forced alignment only.\n");
319 sim_io_eprintf (sd
, "Debugging not compiled in, `-D' ignored\n");
322 for (n
= 0; n
< MAX_NR_PROCESSORS
; ++n
)
323 for (i
= 0; i
< MAX_DEBUG_VALUES
; ++i
)
324 CPU_DEBUG_FLAGS (STATE_CPU (sd
, n
))[i
] = 1;
328 case OPTION_DEBUG_INSN
:
330 sim_io_eprintf (sd
, "Debugging not compiled in, `--debug-insn' ignored\n");
333 for (n
= 0; n
< MAX_NR_PROCESSORS
; ++n
)
334 CPU_DEBUG_FLAGS (STATE_CPU (sd
, n
))[DEBUG_INSN_IDX
] = 1;
338 case OPTION_DEBUG_FILE
:
340 sim_io_eprintf (sd
, "Debugging not compiled in, `--debug-file' ignored\n");
343 FILE *f
= fopen (arg
, "w");
347 sim_io_eprintf (sd
, "Unable to open debug output file `%s'\n", arg
);
350 for (n
= 0; n
< MAX_NR_PROCESSORS
; ++n
)
351 CPU_DEBUG_FILE (STATE_CPU (sd
, n
)) = f
;
355 #ifdef SIM_H8300 /* FIXME: Can be moved to h8300 dir. */
361 #ifdef SIM_HAVE_FLATMEM
362 case OPTION_MEM_SIZE
:
364 unsigned long ul
= strtol (arg
, NULL
, 0);
365 /* 16384: some minimal amount */
366 if (! isdigit (arg
[0]) || ul
< 16384)
368 sim_io_eprintf (sd
, "Invalid memory size `%s'", arg
);
371 STATE_MEM_SIZE (sd
) = ul
;
376 case OPTION_DO_COMMAND
:
377 sim_do_command (sd
, arg
);
380 case OPTION_ARCHITECTURE
:
382 const struct bfd_arch_info
*ap
= bfd_scan_arch (arg
);
385 sim_io_eprintf (sd
, "Architecture `%s' unknown\n", arg
);
388 STATE_ARCHITECTURE (sd
) = ap
;
392 case OPTION_ARCHITECTURE_INFO
:
394 const char **list
= bfd_arch_list();
398 sim_io_printf (sd
, "Possible architectures:");
399 for (lp
= list
; *lp
!= NULL
; lp
++)
400 sim_io_printf (sd
, " %s", *lp
);
401 sim_io_printf (sd
, "\n");
408 STATE_TARGET (sd
) = xstrdup (arg
);
412 case OPTION_LOAD_LMA
:
414 STATE_LOAD_AT_LMA_P (sd
) = 1;
418 case OPTION_LOAD_VMA
:
420 STATE_LOAD_AT_LMA_P (sd
) = 0;
425 sim_print_help (sd
, is_command
);
426 if (STATE_OPEN_KIND (sd
) == SIM_OPEN_STANDALONE
)
428 /* FIXME: 'twould be nice to do something similar if gdb. */
435 /* Add the standard option list to the simulator. */
438 standard_install (SIM_DESC sd
)
440 SIM_ASSERT (STATE_MAGIC (sd
) == SIM_MAGIC_NUMBER
);
441 if (sim_add_option_table (sd
, NULL
, standard_options
) != SIM_RC_OK
)
443 #ifdef SIM_HANDLES_LMA
444 STATE_LOAD_AT_LMA_P (sd
) = SIM_HANDLES_LMA
;
449 /* Return non-zero if arg is a duplicate argument.
450 If ARG is NULL, initialize. */
452 #define ARG_HASH_SIZE 97
453 #define ARG_HASH(a) ((256 * (unsigned char) a[0] + (unsigned char) a[1]) % ARG_HASH_SIZE)
460 static char **arg_table
= NULL
;
464 if (arg_table
== NULL
)
465 arg_table
= (char **) xmalloc (ARG_HASH_SIZE
* sizeof (char *));
466 memset (arg_table
, 0, ARG_HASH_SIZE
* sizeof (char *));
470 hash
= ARG_HASH (arg
);
471 while (arg_table
[hash
] != NULL
)
473 if (strcmp (arg
, arg_table
[hash
]) == 0)
475 /* We assume there won't be more than ARG_HASH_SIZE arguments so we
476 don't check if the table is full. */
477 if (++hash
== ARG_HASH_SIZE
)
480 arg_table
[hash
] = arg
;
484 /* Called by sim_open to parse the arguments. */
487 sim_parse_args (sd
, argv
)
491 int c
, i
, argc
, num_opts
;
492 char *p
, *short_options
;
493 /* The `val' option struct entry is dynamically assigned for options that
494 only come in the long form. ORIG_VAL is used to get the original value
497 struct option
*lp
, *long_options
;
498 const struct option_list
*ol
;
500 OPTION_HANDLER
**handlers
;
503 /* Count the number of arguments. */
504 for (argc
= 0; argv
[argc
] != NULL
; ++argc
)
507 /* Count the number of options. */
509 for (ol
= STATE_OPTIONS (sd
); ol
!= NULL
; ol
= ol
->next
)
510 for (opt
= ol
->options
; OPTION_VALID_P (opt
); ++opt
)
512 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
513 for (ol
= CPU_OPTIONS (STATE_CPU (sd
, i
)); ol
!= NULL
; ol
= ol
->next
)
514 for (opt
= ol
->options
; OPTION_VALID_P (opt
); ++opt
)
517 /* Initialize duplicate argument checker. */
518 (void) dup_arg_p (NULL
);
520 /* Build the option table for getopt. */
522 long_options
= NZALLOC (struct option
, num_opts
+ 1);
524 short_options
= NZALLOC (char, num_opts
* 3 + 1);
526 handlers
= NZALLOC (OPTION_HANDLER
*, OPTION_START
+ num_opts
);
527 orig_val
= NZALLOC (int, OPTION_START
+ num_opts
);
528 opt_cpu
= NZALLOC (sim_cpu
*, OPTION_START
+ num_opts
);
530 /* Set '+' as first char so argument permutation isn't done. This
531 is done to stop getopt_long returning options that appear after
532 the target program. Such options should be passed unchanged into
533 the program image. */
536 for (i
= OPTION_START
, ol
= STATE_OPTIONS (sd
); ol
!= NULL
; ol
= ol
->next
)
537 for (opt
= ol
->options
; OPTION_VALID_P (opt
); ++opt
)
539 if (dup_arg_p (opt
->opt
.name
))
541 if (opt
->shortopt
!= 0)
543 *p
++ = opt
->shortopt
;
544 if (opt
->opt
.has_arg
== required_argument
)
546 else if (opt
->opt
.has_arg
== optional_argument
)
547 { *p
++ = ':'; *p
++ = ':'; }
548 handlers
[(unsigned char) opt
->shortopt
] = opt
->handler
;
549 if (opt
->opt
.val
!= 0)
550 orig_val
[(unsigned char) opt
->shortopt
] = opt
->opt
.val
;
552 orig_val
[(unsigned char) opt
->shortopt
] = opt
->shortopt
;
554 if (opt
->opt
.name
!= NULL
)
557 /* Dynamically assign `val' numbers for long options. */
559 handlers
[lp
->val
] = opt
->handler
;
560 orig_val
[lp
->val
] = opt
->opt
.val
;
561 opt_cpu
[lp
->val
] = NULL
;
566 for (c
= 0; c
< MAX_NR_PROCESSORS
; ++c
)
568 sim_cpu
*cpu
= STATE_CPU (sd
, c
);
569 for (ol
= CPU_OPTIONS (cpu
); ol
!= NULL
; ol
= ol
->next
)
570 for (opt
= ol
->options
; OPTION_VALID_P (opt
); ++opt
)
572 #if 0 /* Each option is prepended with --<cpuname>- so this greatly cuts down
573 on the need for dup_arg_p checking. Maybe in the future it'll be
574 needed so this is just commented out, and not deleted. */
575 if (dup_arg_p (opt
->opt
.name
))
578 /* Don't allow short versions of cpu specific options for now. */
579 if (opt
->shortopt
!= 0)
581 sim_io_eprintf (sd
, "internal error, short cpu specific option");
584 if (opt
->opt
.name
!= NULL
)
588 /* Prepend --<cpuname>- to the option. */
589 asprintf (&name
, "%s-%s", CPU_NAME (cpu
), lp
->name
);
591 /* Dynamically assign `val' numbers for long options. */
593 handlers
[lp
->val
] = opt
->handler
;
594 orig_val
[lp
->val
] = opt
->opt
.val
;
595 opt_cpu
[lp
->val
] = cpu
;
601 /* Terminate the short and long option lists. */
605 /* Ensure getopt is initialized. */
612 optc
= getopt_long (argc
, argv
, short_options
, long_options
, &longind
);
615 if (STATE_OPEN_KIND (sd
) == SIM_OPEN_STANDALONE
)
616 STATE_PROG_ARGV (sd
) = dupargv (argv
+ optind
);
622 if ((*handlers
[optc
]) (sd
, opt_cpu
[optc
], orig_val
[optc
], optarg
, 0/*!is_command*/) == SIM_RC_FAIL
)
629 /* Utility of sim_print_help to print a list of option tables. */
632 print_help (SIM_DESC sd
, sim_cpu
*cpu
, const struct option_list
*ol
, int is_command
)
636 for ( ; ol
!= NULL
; ol
= ol
->next
)
637 for (opt
= ol
->options
; OPTION_VALID_P (opt
); ++opt
)
639 const int indent
= 30;
643 if (dup_arg_p (opt
->opt
.name
))
646 if (opt
->doc
== NULL
)
649 if (opt
->doc_name
!= NULL
&& opt
->doc_name
[0] == '\0')
652 sim_io_printf (sd
, " ");
657 /* list any short options (aliases) for the current OPT */
663 if (o
->shortopt
!= '\0')
665 sim_io_printf (sd
, "%s-%c", comma
? ", " : "", o
->shortopt
);
666 len
+= (comma
? 2 : 0) + 2;
669 if (o
->opt
.has_arg
== optional_argument
)
671 sim_io_printf (sd
, "[%s]", o
->arg
);
672 len
+= 1 + strlen (o
->arg
) + 1;
676 sim_io_printf (sd
, " %s", o
->arg
);
677 len
+= 1 + strlen (o
->arg
);
684 while (OPTION_VALID_P (o
) && o
->doc
== NULL
);
687 /* list any long options (aliases) for the current OPT */
692 const char *cpu_prefix
= cpu
? CPU_NAME (cpu
) : NULL
;
693 if (o
->doc_name
!= NULL
)
699 sim_io_printf (sd
, "%s%s%s%s%s",
701 is_command
? "" : "--",
702 cpu
? cpu_prefix
: "",
705 len
+= ((comma
? 2 : 0)
706 + (is_command
? 0 : 2)
710 if (o
->opt
.has_arg
== optional_argument
)
712 sim_io_printf (sd
, " [%s]", o
->arg
);
713 len
+= 2 + strlen (o
->arg
) + 1;
717 sim_io_printf (sd
, " %s", o
->arg
);
718 len
+= 1 + strlen (o
->arg
);
725 while (OPTION_VALID_P (o
) && o
->doc
== NULL
);
729 sim_io_printf (sd
, "\n%*s", indent
, "");
732 sim_io_printf (sd
, "%*s", indent
- len
, "");
734 /* print the description, word wrap long lines */
736 const char *chp
= opt
->doc
;
737 unsigned doc_width
= 80 - indent
;
738 while (strlen (chp
) >= doc_width
) /* some slack */
740 const char *end
= chp
+ doc_width
- 1;
741 while (end
> chp
&& !isspace (*end
))
744 end
= chp
+ doc_width
- 1;
745 sim_io_printf (sd
, "%.*s\n%*s", end
- chp
, chp
, indent
, "");
747 while (isspace (*chp
) && *chp
!= '\0')
750 sim_io_printf (sd
, "%s\n", chp
);
755 /* Print help messages for the options. */
758 sim_print_help (sd
, is_command
)
762 if (STATE_OPEN_KIND (sd
) == SIM_OPEN_STANDALONE
)
763 sim_io_printf (sd
, "Usage: %s [options] program [program args]\n",
766 /* Initialize duplicate argument checker. */
767 (void) dup_arg_p (NULL
);
769 if (STATE_OPEN_KIND (sd
) == SIM_OPEN_STANDALONE
)
770 sim_io_printf (sd
, "Options:\n");
772 sim_io_printf (sd
, "Commands:\n");
774 print_help (sd
, NULL
, STATE_OPTIONS (sd
), is_command
);
775 sim_io_printf (sd
, "\n");
777 /* Print cpu-specific options. */
781 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
783 sim_cpu
*cpu
= STATE_CPU (sd
, i
);
784 if (CPU_OPTIONS (cpu
) == NULL
)
786 sim_io_printf (sd
, "CPU %s specific options:\n", CPU_NAME (cpu
));
787 print_help (sd
, cpu
, CPU_OPTIONS (cpu
), is_command
);
788 sim_io_printf (sd
, "\n");
792 sim_io_printf (sd
, "Note: Depending on the simulator configuration some %ss\n",
793 STATE_OPEN_KIND (sd
) == SIM_OPEN_STANDALONE
? "option" : "command");
794 sim_io_printf (sd
, " may not be applicable\n");
796 if (STATE_OPEN_KIND (sd
) == SIM_OPEN_STANDALONE
)
798 sim_io_printf (sd
, "\n");
799 sim_io_printf (sd
, "program args Arguments to pass to simulated program.\n");
800 sim_io_printf (sd
, " Note: Very few simulators support this.\n");
804 /* Utility of sim_args_command to find the closest match for a command.
805 Commands that have "-" in them can be specified as separate words.
806 e.g. sim memory-region 0x800000,0x4000
807 or sim memory region 0x800000,0x4000
808 If CPU is non-null, use its option table list, otherwise use the main one.
809 *PARGI is where to start looking in ARGV. It is updated to point past
812 static const OPTION
*
813 find_match (SIM_DESC sd
, sim_cpu
*cpu
, char *argv
[], int *pargi
)
815 const struct option_list
*ol
;
817 /* most recent option match */
818 const OPTION
*matching_opt
= NULL
;
819 int matching_argi
= -1;
822 ol
= CPU_OPTIONS (cpu
);
824 ol
= STATE_OPTIONS (sd
);
826 /* Skip passed elements specified by *PARGI. */
829 for ( ; ol
!= NULL
; ol
= ol
->next
)
830 for (opt
= ol
->options
; OPTION_VALID_P (opt
); ++opt
)
833 const char *name
= opt
->opt
.name
;
836 while (argv
[argi
] != NULL
837 && strncmp (name
, argv
[argi
], strlen (argv
[argi
])) == 0)
839 name
= &name
[strlen (argv
[argi
])];
842 /* leading match ...<a-b-c>-d-e-f - continue search */
843 name
++; /* skip `-' */
847 else if (name
[0] == '\0')
849 /* exact match ...<a-b-c-d-e-f> - better than before? */
850 if (argi
> matching_argi
)
852 matching_argi
= argi
;
862 *pargi
= matching_argi
;
867 sim_args_command (SIM_DESC sd
, char *cmd
)
869 /* something to do? */
871 return SIM_RC_OK
; /* FIXME - perhaphs help would be better */
875 /* user specified -<opt> ... form? */
876 char **argv
= buildargv (cmd
);
877 SIM_RC rc
= sim_parse_args (sd
, argv
);
883 char **argv
= buildargv (cmd
);
884 const OPTION
*matching_opt
= NULL
;
888 if (argv
[0] == NULL
)
889 return SIM_RC_OK
; /* FIXME - perhaphs help would be better */
891 /* First check for a cpu selector. */
893 char *cpu_name
= xstrdup (argv
[0]);
894 char *hyphen
= strchr (cpu_name
, '-');
897 cpu
= sim_cpu_lookup (sd
, cpu_name
);
900 /* If <cpuname>-<command>, point argv[0] at <command>. */
904 argv
[0] += hyphen
- cpu_name
+ 1;
908 matching_opt
= find_match (sd
, cpu
, argv
, &matching_argi
);
909 /* If hyphen found restore argv[0]. */
911 argv
[0] -= hyphen
- cpu_name
+ 1;
916 /* If that failed, try the main table. */
917 if (matching_opt
== NULL
)
920 matching_opt
= find_match (sd
, NULL
, argv
, &matching_argi
);
923 if (matching_opt
!= NULL
)
925 switch (matching_opt
->opt
.has_arg
)
928 if (argv
[matching_argi
+ 1] == NULL
)
929 matching_opt
->handler (sd
, cpu
, matching_opt
->opt
.val
,
930 NULL
, 1/*is_command*/);
932 sim_io_eprintf (sd
, "Command `%s' takes no arguments\n",
933 matching_opt
->opt
.name
);
935 case optional_argument
:
936 if (argv
[matching_argi
+ 1] == NULL
)
937 matching_opt
->handler (sd
, cpu
, matching_opt
->opt
.val
,
938 NULL
, 1/*is_command*/);
939 else if (argv
[matching_argi
+ 2] == NULL
)
940 matching_opt
->handler (sd
, cpu
, matching_opt
->opt
.val
,
941 argv
[matching_argi
+ 1], 1/*is_command*/);
943 sim_io_eprintf (sd
, "Command `%s' requires no more than one argument\n",
944 matching_opt
->opt
.name
);
946 case required_argument
:
947 if (argv
[matching_argi
+ 1] == NULL
)
948 sim_io_eprintf (sd
, "Command `%s' requires an argument\n",
949 matching_opt
->opt
.name
);
950 else if (argv
[matching_argi
+ 2] == NULL
)
951 matching_opt
->handler (sd
, cpu
, matching_opt
->opt
.val
,
952 argv
[matching_argi
+ 1], 1/*is_command*/);
954 sim_io_eprintf (sd
, "Command `%s' requires only one argument\n",
955 matching_opt
->opt
.name
);
964 /* didn't find anything that remotly matched */