Commit | Line | Data |
---|---|---|
7d9884b9 JG |
1 | /* Handle lists of commands, their decoding and documentation, for GDB. |
2 | Copyright 1986, 1989, 1990, 1991 Free Software Foundation, Inc. | |
dd3b648e | 3 | |
99a7de40 JG |
4 | This program is free software; you can redistribute it and/or modify |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 2 of the License, or | |
7 | (at your option) any later version. | |
dd3b648e | 8 | |
99a7de40 JG |
9 | This program is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
dd3b648e | 13 | |
99a7de40 JG |
14 | You should have received a copy of the GNU General Public License |
15 | along with this program; if not, write to the Free Software | |
16 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
dd3b648e RP |
17 | |
18 | #include "defs.h" | |
4369a140 | 19 | #include "gdbcmd.h" |
dd3b648e RP |
20 | #include "symtab.h" |
21 | #include "value.h" | |
dd3b648e RP |
22 | #include <ctype.h> |
23 | #include <string.h> | |
24 | ||
1ab3bf1b JG |
25 | /* Prototypes for local functions */ |
26 | ||
27 | static void | |
28 | undef_cmd_error PARAMS ((char *, char *)); | |
29 | ||
30 | static void | |
31 | show_user PARAMS ((char *, int)); | |
32 | ||
33 | static void | |
199b2450 | 34 | show_user_1 PARAMS ((struct cmd_list_element *, GDB_FILE *)); |
1ab3bf1b JG |
35 | |
36 | static void | |
37 | make_command PARAMS ((char *, int)); | |
38 | ||
39 | static void | |
40 | shell_escape PARAMS ((char *, int)); | |
41 | ||
42 | static int | |
43 | parse_binary_operation PARAMS ((char *)); | |
44 | ||
45 | static void | |
199b2450 | 46 | print_doc_line PARAMS ((GDB_FILE *, char *)); |
dd3b648e | 47 | |
f936e20d RP |
48 | /* Add element named NAME. |
49 | CLASS is the top level category into which commands are broken down | |
50 | for "help" purposes. | |
dd3b648e RP |
51 | FUN should be the function to execute the command; |
52 | it will get a character string as argument, with leading | |
53 | and trailing blanks already eliminated. | |
54 | ||
55 | DOC is a documentation string for the command. | |
56 | Its first line should be a complete sentence. | |
57 | It should start with ? for a command that is an abbreviation | |
f936e20d RP |
58 | or with * for a command that most users don't need to know about. |
59 | ||
60 | Add this command to command list *LIST. */ | |
dd3b648e RP |
61 | |
62 | struct cmd_list_element * | |
63 | add_cmd (name, class, fun, doc, list) | |
64 | char *name; | |
65 | enum command_class class; | |
1ab3bf1b | 66 | void (*fun) PARAMS ((char *, int)); |
dd3b648e RP |
67 | char *doc; |
68 | struct cmd_list_element **list; | |
69 | { | |
70 | register struct cmd_list_element *c | |
71 | = (struct cmd_list_element *) xmalloc (sizeof (struct cmd_list_element)); | |
72 | ||
73 | delete_cmd (name, list); | |
74 | c->next = *list; | |
75 | c->name = name; | |
76 | c->class = class; | |
1ab3bf1b | 77 | c->function.cfunc = fun; |
dd3b648e RP |
78 | c->doc = doc; |
79 | c->prefixlist = 0; | |
80 | c->prefixname = (char *)NULL; | |
81 | c->allow_unknown = 0; | |
a65841d7 JG |
82 | c->hook = 0; |
83 | c->hookee = 0; | |
84 | c->cmd_pointer = 0; | |
dd3b648e | 85 | c->abbrev_flag = 0; |
dd3b648e RP |
86 | c->type = not_set_cmd; |
87 | c->completer = make_symbol_completion_list; | |
88 | c->var = 0; | |
89 | c->var_type = var_boolean; | |
90 | c->user_commands = 0; | |
91 | *list = c; | |
92 | return c; | |
93 | } | |
94 | ||
95 | /* Same as above, except that the abbrev_flag is set. */ | |
96 | ||
1ab3bf1b JG |
97 | #if 0 /* Currently unused */ |
98 | ||
dd3b648e RP |
99 | struct cmd_list_element * |
100 | add_abbrev_cmd (name, class, fun, doc, list) | |
101 | char *name; | |
102 | enum command_class class; | |
1ab3bf1b | 103 | void (*fun) PARAMS ((char *, int)); |
dd3b648e RP |
104 | char *doc; |
105 | struct cmd_list_element **list; | |
106 | { | |
107 | register struct cmd_list_element *c | |
108 | = add_cmd (name, class, fun, doc, list); | |
109 | ||
110 | c->abbrev_flag = 1; | |
111 | return c; | |
112 | } | |
113 | ||
1ab3bf1b JG |
114 | #endif |
115 | ||
dd3b648e RP |
116 | struct cmd_list_element * |
117 | add_alias_cmd (name, oldname, class, abbrev_flag, list) | |
118 | char *name; | |
119 | char *oldname; | |
120 | enum command_class class; | |
121 | int abbrev_flag; | |
122 | struct cmd_list_element **list; | |
123 | { | |
124 | /* Must do this since lookup_cmd tries to side-effect its first arg */ | |
125 | char *copied_name; | |
126 | register struct cmd_list_element *old; | |
127 | register struct cmd_list_element *c; | |
128 | copied_name = (char *) alloca (strlen (oldname) + 1); | |
129 | strcpy (copied_name, oldname); | |
130 | old = lookup_cmd (&copied_name, *list, "", 1, 1); | |
131 | ||
132 | if (old == 0) | |
133 | { | |
134 | delete_cmd (name, list); | |
135 | return 0; | |
136 | } | |
137 | ||
1ab3bf1b | 138 | c = add_cmd (name, class, old->function.cfunc, old->doc, list); |
dd3b648e RP |
139 | c->prefixlist = old->prefixlist; |
140 | c->prefixname = old->prefixname; | |
141 | c->allow_unknown = old->allow_unknown; | |
142 | c->abbrev_flag = abbrev_flag; | |
a65841d7 | 143 | c->cmd_pointer = old; |
dd3b648e RP |
144 | return c; |
145 | } | |
146 | ||
147 | /* Like add_cmd but adds an element for a command prefix: | |
148 | a name that should be followed by a subcommand to be looked up | |
149 | in another command list. PREFIXLIST should be the address | |
150 | of the variable containing that list. */ | |
151 | ||
152 | struct cmd_list_element * | |
153 | add_prefix_cmd (name, class, fun, doc, prefixlist, prefixname, | |
154 | allow_unknown, list) | |
155 | char *name; | |
156 | enum command_class class; | |
1ab3bf1b | 157 | void (*fun) PARAMS ((char *, int)); |
dd3b648e RP |
158 | char *doc; |
159 | struct cmd_list_element **prefixlist; | |
160 | char *prefixname; | |
161 | int allow_unknown; | |
162 | struct cmd_list_element **list; | |
163 | { | |
164 | register struct cmd_list_element *c = add_cmd (name, class, fun, doc, list); | |
165 | c->prefixlist = prefixlist; | |
166 | c->prefixname = prefixname; | |
167 | c->allow_unknown = allow_unknown; | |
168 | return c; | |
169 | } | |
170 | ||
0efe20a6 | 171 | /* Like add_prefix_cmd but sets the abbrev_flag on the new command. */ |
dd3b648e RP |
172 | |
173 | struct cmd_list_element * | |
174 | add_abbrev_prefix_cmd (name, class, fun, doc, prefixlist, prefixname, | |
1ab3bf1b | 175 | allow_unknown, list) |
dd3b648e RP |
176 | char *name; |
177 | enum command_class class; | |
1ab3bf1b | 178 | void (*fun) PARAMS ((char *, int)); |
dd3b648e RP |
179 | char *doc; |
180 | struct cmd_list_element **prefixlist; | |
181 | char *prefixname; | |
182 | int allow_unknown; | |
183 | struct cmd_list_element **list; | |
184 | { | |
185 | register struct cmd_list_element *c = add_cmd (name, class, fun, doc, list); | |
186 | c->prefixlist = prefixlist; | |
187 | c->prefixname = prefixname; | |
188 | c->allow_unknown = allow_unknown; | |
189 | c->abbrev_flag = 1; | |
190 | return c; | |
191 | } | |
192 | ||
e1ce8aa5 | 193 | /* ARGSUSED */ |
dd3b648e | 194 | void |
719d9abb | 195 | not_just_help_class_command (args, from_tty, c) |
dd3b648e RP |
196 | char *args; |
197 | int from_tty; | |
719d9abb | 198 | struct cmd_list_element *c; |
dd3b648e RP |
199 | { |
200 | } | |
201 | ||
202 | /* Add element named NAME to command list LIST (the list for set | |
203 | or some sublist thereof). | |
204 | CLASS is as in add_cmd. | |
205 | VAR_TYPE is the kind of thing we are setting. | |
206 | VAR is address of the variable being controlled by this command. | |
207 | DOC is the documentation string. */ | |
1ab3bf1b | 208 | |
dd3b648e RP |
209 | struct cmd_list_element * |
210 | add_set_cmd (name, class, var_type, var, doc, list) | |
211 | char *name; | |
212 | enum command_class class; | |
213 | var_types var_type; | |
214 | char *var; | |
215 | char *doc; | |
216 | struct cmd_list_element **list; | |
217 | { | |
dd3b648e | 218 | struct cmd_list_element *c |
719d9abb | 219 | = add_cmd (name, class, NO_FUNCTION, doc, list); |
dd3b648e RP |
220 | |
221 | c->type = set_cmd; | |
222 | c->var_type = var_type; | |
223 | c->var = var; | |
719d9abb JK |
224 | /* This needs to be something besides NO_FUNCTION so that this isn't |
225 | treated as a help class. */ | |
226 | c->function.sfunc = not_just_help_class_command; | |
dd3b648e RP |
227 | return c; |
228 | } | |
229 | ||
230 | /* Where SETCMD has already been added, add the corresponding show | |
231 | command to LIST and return a pointer to it. */ | |
232 | struct cmd_list_element * | |
233 | add_show_from_set (setcmd, list) | |
234 | struct cmd_list_element *setcmd; | |
235 | struct cmd_list_element **list; | |
236 | { | |
237 | struct cmd_list_element *showcmd = | |
238 | (struct cmd_list_element *) xmalloc (sizeof (struct cmd_list_element)); | |
239 | ||
4ed3a9ea | 240 | memcpy (showcmd, setcmd, sizeof (struct cmd_list_element)); |
dd3b648e RP |
241 | delete_cmd (showcmd->name, list); |
242 | showcmd->type = show_cmd; | |
243 | ||
244 | /* Replace "set " at start of docstring with "show ". */ | |
245 | if (setcmd->doc[0] == 'S' && setcmd->doc[1] == 'e' | |
246 | && setcmd->doc[2] == 't' && setcmd->doc[3] == ' ') | |
58ae87f6 | 247 | showcmd->doc = concat ("Show ", setcmd->doc + 4, NULL); |
dd3b648e | 248 | else |
199b2450 | 249 | fprintf_unfiltered (gdb_stderr, "GDB internal error: Bad docstring for set command\n"); |
dd3b648e RP |
250 | |
251 | showcmd->next = *list; | |
252 | *list = showcmd; | |
253 | return showcmd; | |
254 | } | |
255 | ||
256 | /* Remove the command named NAME from the command list. */ | |
257 | ||
258 | void | |
259 | delete_cmd (name, list) | |
260 | char *name; | |
261 | struct cmd_list_element **list; | |
262 | { | |
263 | register struct cmd_list_element *c; | |
264 | struct cmd_list_element *p; | |
265 | ||
2e4964ad | 266 | while (*list && STREQ ((*list)->name, name)) |
dd3b648e | 267 | { |
a65841d7 JG |
268 | if ((*list)->hookee) |
269 | (*list)->hookee->hook = 0; /* Hook slips out of its mouth */ | |
dd3b648e | 270 | p = (*list)->next; |
be772100 | 271 | free ((PTR)*list); |
dd3b648e RP |
272 | *list = p; |
273 | } | |
274 | ||
275 | if (*list) | |
276 | for (c = *list; c->next;) | |
277 | { | |
2e4964ad | 278 | if (STREQ (c->next->name, name)) |
dd3b648e | 279 | { |
a65841d7 JG |
280 | if (c->next->hookee) |
281 | c->next->hookee->hook = 0; /* hooked cmd gets away. */ | |
dd3b648e | 282 | p = c->next->next; |
be772100 | 283 | free ((PTR)c->next); |
dd3b648e RP |
284 | c->next = p; |
285 | } | |
286 | else | |
287 | c = c->next; | |
288 | } | |
289 | } | |
290 | ||
dd3b648e RP |
291 | /* This command really has to deal with two things: |
292 | * 1) I want documentation on *this string* (usually called by | |
293 | * "help commandname"). | |
294 | * 2) I want documentation on *this list* (usually called by | |
295 | * giving a command that requires subcommands. Also called by saying | |
296 | * just "help".) | |
297 | * | |
298 | * I am going to split this into two seperate comamnds, help_cmd and | |
299 | * help_list. | |
300 | */ | |
301 | ||
302 | void | |
303 | help_cmd (command, stream) | |
304 | char *command; | |
199b2450 | 305 | GDB_FILE *stream; |
dd3b648e RP |
306 | { |
307 | struct cmd_list_element *c; | |
308 | extern struct cmd_list_element *cmdlist; | |
309 | ||
310 | if (!command) | |
311 | { | |
312 | help_list (cmdlist, "", all_classes, stream); | |
313 | return; | |
314 | } | |
315 | ||
316 | c = lookup_cmd (&command, cmdlist, "", 0, 0); | |
317 | ||
318 | if (c == 0) | |
319 | return; | |
320 | ||
321 | /* There are three cases here. | |
322 | If c->prefixlist is nonzero, we have a prefix command. | |
323 | Print its documentation, then list its subcommands. | |
324 | ||
325 | If c->function is nonzero, we really have a command. | |
326 | Print its documentation and return. | |
327 | ||
328 | If c->function is zero, we have a class name. | |
329 | Print its documentation (as if it were a command) | |
330 | and then set class to the number of this class | |
331 | so that the commands in the class will be listed. */ | |
332 | ||
333 | fputs_filtered (c->doc, stream); | |
334 | fputs_filtered ("\n", stream); | |
335 | ||
1ab3bf1b | 336 | if (c->prefixlist == 0 && c->function.cfunc != NULL) |
dd3b648e RP |
337 | return; |
338 | fprintf_filtered (stream, "\n"); | |
339 | ||
340 | /* If this is a prefix command, print it's subcommands */ | |
341 | if (c->prefixlist) | |
342 | help_list (*c->prefixlist, c->prefixname, all_commands, stream); | |
343 | ||
344 | /* If this is a class name, print all of the commands in the class */ | |
1ab3bf1b | 345 | if (c->function.cfunc == NULL) |
dd3b648e | 346 | help_list (cmdlist, "", c->class, stream); |
a65841d7 JG |
347 | |
348 | if (c->hook) | |
349 | fprintf_filtered (stream, "\nThis command has a hook defined: %s\n", | |
350 | c->hook->name); | |
dd3b648e RP |
351 | } |
352 | ||
353 | /* | |
354 | * Get a specific kind of help on a command list. | |
355 | * | |
356 | * LIST is the list. | |
357 | * CMDTYPE is the prefix to use in the title string. | |
358 | * CLASS is the class with which to list the nodes of this list (see | |
359 | * documentation for help_cmd_list below), As usual, ALL_COMMANDS for | |
360 | * everything, ALL_CLASSES for just classes, and non-negative for only things | |
361 | * in a specific class. | |
362 | * and STREAM is the output stream on which to print things. | |
363 | * If you call this routine with a class >= 0, it recurses. | |
364 | */ | |
365 | void | |
366 | help_list (list, cmdtype, class, stream) | |
367 | struct cmd_list_element *list; | |
368 | char *cmdtype; | |
369 | enum command_class class; | |
199b2450 | 370 | GDB_FILE *stream; |
dd3b648e RP |
371 | { |
372 | int len; | |
373 | char *cmdtype1, *cmdtype2; | |
374 | ||
375 | /* If CMDTYPE is "foo ", CMDTYPE1 gets " foo" and CMDTYPE2 gets "foo sub" */ | |
376 | len = strlen (cmdtype); | |
377 | cmdtype1 = (char *) alloca (len + 1); | |
378 | cmdtype1[0] = 0; | |
379 | cmdtype2 = (char *) alloca (len + 4); | |
380 | cmdtype2[0] = 0; | |
381 | if (len) | |
382 | { | |
383 | cmdtype1[0] = ' '; | |
384 | strncpy (cmdtype1 + 1, cmdtype, len - 1); | |
385 | cmdtype1[len] = 0; | |
386 | strncpy (cmdtype2, cmdtype, len - 1); | |
387 | strcpy (cmdtype2 + len - 1, " sub"); | |
388 | } | |
389 | ||
390 | if (class == all_classes) | |
391 | fprintf_filtered (stream, "List of classes of %scommands:\n\n", cmdtype2); | |
392 | else | |
393 | fprintf_filtered (stream, "List of %scommands:\n\n", cmdtype2); | |
394 | ||
395 | help_cmd_list (list, class, cmdtype, (int)class >= 0, stream); | |
396 | ||
397 | if (class == all_classes) | |
398 | fprintf_filtered (stream, "\n\ | |
399 | Type \"help%s\" followed by a class name for a list of commands in that class.", | |
400 | cmdtype1); | |
401 | ||
402 | fprintf_filtered (stream, "\n\ | |
403 | Type \"help%s\" followed by %scommand name for full documentation.\n\ | |
404 | Command name abbreviations are allowed if unambiguous.\n", | |
405 | cmdtype1, cmdtype2); | |
406 | } | |
407 | ||
408 | /* Print only the first line of STR on STREAM. */ | |
409 | static void | |
410 | print_doc_line (stream, str) | |
199b2450 | 411 | GDB_FILE *stream; |
dd3b648e RP |
412 | char *str; |
413 | { | |
414 | static char *line_buffer = 0; | |
415 | static int line_size; | |
416 | register char *p; | |
417 | ||
418 | if (!line_buffer) | |
419 | { | |
420 | line_size = 80; | |
421 | line_buffer = (char *) xmalloc (line_size); | |
422 | } | |
423 | ||
424 | p = str; | |
425 | while (*p && *p != '\n' && *p != '.' && *p != ',') | |
426 | p++; | |
427 | if (p - str > line_size - 1) | |
428 | { | |
429 | line_size = p - str + 1; | |
be772100 | 430 | free ((PTR)line_buffer); |
dd3b648e RP |
431 | line_buffer = (char *) xmalloc (line_size); |
432 | } | |
433 | strncpy (line_buffer, str, p - str); | |
434 | line_buffer[p - str] = '\0'; | |
435 | if (islower (line_buffer[0])) | |
436 | line_buffer[0] = toupper (line_buffer[0]); | |
437 | fputs_filtered (line_buffer, stream); | |
438 | } | |
439 | ||
440 | /* | |
441 | * Implement a help command on command list LIST. | |
442 | * RECURSE should be non-zero if this should be done recursively on | |
443 | * all sublists of LIST. | |
444 | * PREFIX is the prefix to print before each command name. | |
445 | * STREAM is the stream upon which the output should be written. | |
446 | * CLASS should be: | |
447 | * A non-negative class number to list only commands in that | |
448 | * class. | |
449 | * ALL_COMMANDS to list all commands in list. | |
450 | * ALL_CLASSES to list all classes in list. | |
451 | * | |
452 | * Note that RECURSE will be active on *all* sublists, not just the | |
1ab3bf1b | 453 | * ones selected by the criteria above (ie. the selection mechanism |
dd3b648e RP |
454 | * is at the low level, not the high-level). |
455 | */ | |
456 | void | |
457 | help_cmd_list (list, class, prefix, recurse, stream) | |
458 | struct cmd_list_element *list; | |
459 | enum command_class class; | |
460 | char *prefix; | |
461 | int recurse; | |
199b2450 | 462 | GDB_FILE *stream; |
dd3b648e RP |
463 | { |
464 | register struct cmd_list_element *c; | |
465 | ||
466 | for (c = list; c; c = c->next) | |
467 | { | |
468 | if (c->abbrev_flag == 0 && | |
469 | (class == all_commands | |
1ab3bf1b JG |
470 | || (class == all_classes && c->function.cfunc == NULL) |
471 | || (class == c->class && c->function.cfunc != NULL))) | |
dd3b648e RP |
472 | { |
473 | fprintf_filtered (stream, "%s%s -- ", prefix, c->name); | |
474 | print_doc_line (stream, c->doc); | |
475 | fputs_filtered ("\n", stream); | |
476 | } | |
477 | if (recurse | |
478 | && c->prefixlist != 0 | |
479 | && c->abbrev_flag == 0) | |
480 | help_cmd_list (*c->prefixlist, class, c->prefixname, 1, stream); | |
481 | } | |
482 | } | |
483 | \f | |
311592ff FF |
484 | /* This routine takes a line of TEXT and a CLIST in which to start the |
485 | lookup. When it returns it will have incremented the text pointer past | |
486 | the section of text it matched, set *RESULT_LIST to point to the list in | |
487 | which the last word was matched, and will return a pointer to the cmd | |
488 | list element which the text matches. It will return NULL if no match at | |
489 | all was possible. It will return -1 (cast appropriately, ick) if ambigous | |
490 | matches are possible; in this case *RESULT_LIST will be set to point to | |
491 | the list in which there are ambiguous choices (and *TEXT will be set to | |
492 | the ambiguous text string). | |
dd3b648e | 493 | |
a65841d7 JG |
494 | If the located command was an abbreviation, this routine returns the base |
495 | command of the abbreviation. | |
496 | ||
dd3b648e RP |
497 | It does no error reporting whatsoever; control will always return |
498 | to the superior routine. | |
499 | ||
311592ff FF |
500 | In the case of an ambiguous return (-1), *RESULT_LIST will be set to point |
501 | at the prefix_command (ie. the best match) *or* (special case) will be NULL | |
502 | if no prefix command was ever found. For example, in the case of "info a", | |
503 | "info" matches without ambiguity, but "a" could be "args" or "address", so | |
504 | *RESULT_LIST is set to the cmd_list_element for "info". So in this case | |
505 | RESULT_LIST should not be interpeted as a pointer to the beginning of a | |
a32ebcfd JK |
506 | list; it simply points to a specific command. In the case of an ambiguous |
507 | return *TEXT is advanced past the last non-ambiguous prefix (e.g. | |
508 | "info t" can be "info types" or "info target"; upon return *TEXT has been | |
509 | advanced past "info "). | |
dd3b648e RP |
510 | |
511 | If RESULT_LIST is NULL, don't set *RESULT_LIST (but don't otherwise | |
512 | affect the operation). | |
513 | ||
514 | This routine does *not* modify the text pointed to by TEXT. | |
515 | ||
311592ff FF |
516 | If IGNORE_HELP_CLASSES is nonzero, ignore any command list elements which |
517 | are actually help classes rather than commands (i.e. the function field of | |
518 | the struct cmd_list_element is NULL). */ | |
dd3b648e RP |
519 | |
520 | struct cmd_list_element * | |
521 | lookup_cmd_1 (text, clist, result_list, ignore_help_classes) | |
522 | char **text; | |
523 | struct cmd_list_element *clist, **result_list; | |
524 | int ignore_help_classes; | |
525 | { | |
526 | char *p, *command; | |
527 | int len, tmp, nfound; | |
528 | struct cmd_list_element *found, *c; | |
529 | ||
530 | while (**text == ' ' || **text == '\t') | |
531 | (*text)++; | |
532 | ||
533 | /* Treating underscores as part of command words is important | |
534 | so that "set args_foo()" doesn't get interpreted as | |
535 | "set args _foo()". */ | |
536 | for (p = *text; | |
537 | *p && (isalnum(*p) || *p == '-' || *p == '_'); | |
538 | p++) | |
539 | ; | |
540 | ||
541 | /* If nothing but whitespace, return 0. */ | |
542 | if (p == *text) | |
543 | return 0; | |
544 | ||
545 | len = p - *text; | |
546 | ||
547 | /* *text and p now bracket the first command word to lookup (and | |
548 | it's length is len). We copy this into a local temporary, | |
549 | converting to lower case as we go. */ | |
550 | ||
551 | command = (char *) alloca (len + 1); | |
552 | for (tmp = 0; tmp < len; tmp++) | |
553 | { | |
554 | char x = (*text)[tmp]; | |
5c71cf23 | 555 | command[tmp] = isupper(x) ? tolower(x) : x; |
dd3b648e RP |
556 | } |
557 | command[len] = '\0'; | |
558 | ||
559 | /* Look it up. */ | |
560 | found = 0; | |
561 | nfound = 0; | |
562 | for (c = clist; c; c = c->next) | |
563 | if (!strncmp (command, c->name, len) | |
1ab3bf1b | 564 | && (!ignore_help_classes || c->function.cfunc)) |
dd3b648e RP |
565 | { |
566 | found = c; | |
567 | nfound++; | |
568 | if (c->name[len] == '\0') | |
569 | { | |
570 | nfound = 1; | |
571 | break; | |
572 | } | |
573 | } | |
574 | ||
575 | /* If nothing matches, we have a simple failure. */ | |
576 | if (nfound == 0) | |
577 | return 0; | |
578 | ||
579 | if (nfound > 1) | |
580 | { | |
581 | if (result_list != NULL) | |
582 | /* Will be modified in calling routine | |
583 | if we know what the prefix command is. */ | |
584 | *result_list = 0; | |
585 | return (struct cmd_list_element *) -1; /* Ambiguous. */ | |
586 | } | |
587 | ||
588 | /* We've matched something on this list. Move text pointer forward. */ | |
589 | ||
590 | *text = p; | |
a65841d7 JG |
591 | |
592 | /* If this was an abbreviation, use the base command instead. */ | |
593 | ||
594 | if (found->cmd_pointer) | |
595 | found = found->cmd_pointer; | |
596 | ||
597 | /* If we found a prefix command, keep looking. */ | |
598 | ||
dd3b648e RP |
599 | if (found->prefixlist) |
600 | { | |
601 | c = lookup_cmd_1 (text, *found->prefixlist, result_list, | |
602 | ignore_help_classes); | |
603 | if (!c) | |
604 | { | |
605 | /* Didn't find anything; this is as far as we got. */ | |
606 | if (result_list != NULL) | |
607 | *result_list = clist; | |
608 | return found; | |
609 | } | |
610 | else if (c == (struct cmd_list_element *) -1) | |
611 | { | |
612 | /* We've gotten this far properley, but the next step | |
613 | is ambiguous. We need to set the result list to the best | |
614 | we've found (if an inferior hasn't already set it). */ | |
615 | if (result_list != NULL) | |
616 | if (!*result_list) | |
617 | /* This used to say *result_list = *found->prefixlist | |
618 | If that was correct, need to modify the documentation | |
619 | at the top of this function to clarify what is supposed | |
620 | to be going on. */ | |
621 | *result_list = found; | |
622 | return c; | |
623 | } | |
624 | else | |
625 | { | |
626 | /* We matched! */ | |
627 | return c; | |
628 | } | |
629 | } | |
630 | else | |
631 | { | |
632 | if (result_list != NULL) | |
633 | *result_list = clist; | |
634 | return found; | |
635 | } | |
636 | } | |
637 | ||
81066208 JG |
638 | /* All this hair to move the space to the front of cmdtype */ |
639 | ||
1ab3bf1b | 640 | static void |
81066208 JG |
641 | undef_cmd_error (cmdtype, q) |
642 | char *cmdtype, *q; | |
643 | { | |
644 | error ("Undefined %scommand: \"%s\". Try \"help%s%.*s\".", | |
645 | cmdtype, | |
646 | q, | |
647 | *cmdtype? " ": "", | |
648 | strlen(cmdtype)-1, | |
649 | cmdtype); | |
650 | } | |
651 | ||
dd3b648e RP |
652 | /* Look up the contents of *LINE as a command in the command list LIST. |
653 | LIST is a chain of struct cmd_list_element's. | |
654 | If it is found, return the struct cmd_list_element for that command | |
655 | and update *LINE to point after the command name, at the first argument. | |
656 | If not found, call error if ALLOW_UNKNOWN is zero | |
657 | otherwise (or if error returns) return zero. | |
658 | Call error if specified command is ambiguous, | |
659 | unless ALLOW_UNKNOWN is negative. | |
660 | CMDTYPE precedes the word "command" in the error message. | |
661 | ||
662 | If INGNORE_HELP_CLASSES is nonzero, ignore any command list | |
663 | elements which are actually help classes rather than commands (i.e. | |
664 | the function field of the struct cmd_list_element is 0). */ | |
665 | ||
666 | struct cmd_list_element * | |
667 | lookup_cmd (line, list, cmdtype, allow_unknown, ignore_help_classes) | |
668 | char **line; | |
669 | struct cmd_list_element *list; | |
670 | char *cmdtype; | |
671 | int allow_unknown; | |
672 | int ignore_help_classes; | |
673 | { | |
674 | struct cmd_list_element *last_list = 0; | |
675 | struct cmd_list_element *c = | |
676 | lookup_cmd_1 (line, list, &last_list, ignore_help_classes); | |
677 | char *ptr = (*line) + strlen (*line) - 1; | |
678 | ||
679 | /* Clear off trailing whitespace. */ | |
680 | while (ptr >= *line && (*ptr == ' ' || *ptr == '\t')) | |
681 | ptr--; | |
682 | *(ptr + 1) = '\0'; | |
683 | ||
684 | if (!c) | |
685 | { | |
686 | if (!allow_unknown) | |
687 | { | |
688 | if (!*line) | |
689 | error ("Lack of needed %scommand", cmdtype); | |
690 | else | |
691 | { | |
692 | char *p = *line, *q; | |
693 | ||
694 | while (isalnum(*p) || *p == '-') | |
695 | p++; | |
696 | ||
697 | q = (char *) alloca (p - *line + 1); | |
698 | strncpy (q, *line, p - *line); | |
699 | q[p-*line] = '\0'; | |
81066208 | 700 | undef_cmd_error (cmdtype, q); |
dd3b648e RP |
701 | } |
702 | } | |
703 | else | |
704 | return 0; | |
705 | } | |
706 | else if (c == (struct cmd_list_element *) -1) | |
707 | { | |
708 | /* Ambigous. Local values should be off prefixlist or called | |
709 | values. */ | |
710 | int local_allow_unknown = (last_list ? last_list->allow_unknown : | |
711 | allow_unknown); | |
712 | char *local_cmdtype = last_list ? last_list->prefixname : cmdtype; | |
713 | struct cmd_list_element *local_list = | |
714 | (last_list ? *(last_list->prefixlist) : list); | |
715 | ||
716 | if (local_allow_unknown < 0) | |
717 | { | |
718 | if (last_list) | |
719 | return last_list; /* Found something. */ | |
720 | else | |
721 | return 0; /* Found nothing. */ | |
722 | } | |
723 | else | |
724 | { | |
725 | /* Report as error. */ | |
726 | int amb_len; | |
727 | char ambbuf[100]; | |
728 | ||
729 | for (amb_len = 0; | |
730 | ((*line)[amb_len] && (*line)[amb_len] != ' ' | |
731 | && (*line)[amb_len] != '\t'); | |
732 | amb_len++) | |
733 | ; | |
734 | ||
735 | ambbuf[0] = 0; | |
736 | for (c = local_list; c; c = c->next) | |
737 | if (!strncmp (*line, c->name, amb_len)) | |
738 | { | |
739 | if (strlen (ambbuf) + strlen (c->name) + 6 < (int)sizeof ambbuf) | |
740 | { | |
741 | if (strlen (ambbuf)) | |
742 | strcat (ambbuf, ", "); | |
743 | strcat (ambbuf, c->name); | |
744 | } | |
745 | else | |
746 | { | |
747 | strcat (ambbuf, ".."); | |
748 | break; | |
749 | } | |
750 | } | |
751 | error ("Ambiguous %scommand \"%s\": %s.", local_cmdtype, | |
752 | *line, ambbuf); | |
753 | return 0; /* lint */ | |
754 | } | |
755 | } | |
756 | else | |
757 | { | |
758 | /* We've got something. It may still not be what the caller | |
759 | wants (if this command *needs* a subcommand). */ | |
760 | while (**line == ' ' || **line == '\t') | |
761 | (*line)++; | |
762 | ||
763 | if (c->prefixlist && **line && !c->allow_unknown) | |
81066208 | 764 | undef_cmd_error (c->prefixname, *line); |
dd3b648e RP |
765 | |
766 | /* Seems to be what he wants. Return it. */ | |
767 | return c; | |
768 | } | |
769 | return 0; | |
770 | } | |
771 | ||
772 | #if 0 | |
773 | /* Look up the contents of *LINE as a command in the command list LIST. | |
774 | LIST is a chain of struct cmd_list_element's. | |
775 | If it is found, return the struct cmd_list_element for that command | |
776 | and update *LINE to point after the command name, at the first argument. | |
777 | If not found, call error if ALLOW_UNKNOWN is zero | |
778 | otherwise (or if error returns) return zero. | |
779 | Call error if specified command is ambiguous, | |
780 | unless ALLOW_UNKNOWN is negative. | |
781 | CMDTYPE precedes the word "command" in the error message. */ | |
782 | ||
783 | struct cmd_list_element * | |
784 | lookup_cmd (line, list, cmdtype, allow_unknown) | |
785 | char **line; | |
786 | struct cmd_list_element *list; | |
787 | char *cmdtype; | |
788 | int allow_unknown; | |
789 | { | |
790 | register char *p; | |
791 | register struct cmd_list_element *c, *found; | |
792 | int nfound; | |
793 | char ambbuf[100]; | |
794 | char *processed_cmd; | |
795 | int i, cmd_len; | |
796 | ||
797 | /* Skip leading whitespace. */ | |
798 | ||
799 | while (**line == ' ' || **line == '\t') | |
800 | (*line)++; | |
801 | ||
802 | /* Clear out trailing whitespace. */ | |
803 | ||
804 | p = *line + strlen (*line); | |
805 | while (p != *line && (p[-1] == ' ' || p[-1] == '\t')) | |
806 | p--; | |
807 | *p = 0; | |
808 | ||
809 | /* Find end of command name. */ | |
810 | ||
811 | p = *line; | |
5c71cf23 | 812 | while (*p == '-' || isalnum(*p)) |
dd3b648e RP |
813 | p++; |
814 | ||
815 | /* Look up the command name. | |
816 | If exact match, keep that. | |
817 | Otherwise, take command abbreviated, if unique. Note that (in my | |
818 | opinion) a null string does *not* indicate ambiguity; simply the | |
819 | end of the argument. */ | |
820 | ||
821 | if (p == *line) | |
822 | { | |
823 | if (!allow_unknown) | |
824 | error ("Lack of needed %scommand", cmdtype); | |
825 | return 0; | |
826 | } | |
827 | ||
828 | /* Copy over to a local buffer, converting to lowercase on the way. | |
829 | This is in case the command being parsed is a subcommand which | |
830 | doesn't match anything, and that's ok. We want the original | |
831 | untouched for the routine of the original command. */ | |
832 | ||
833 | processed_cmd = (char *) alloca (p - *line + 1); | |
834 | for (cmd_len = 0; cmd_len < p - *line; cmd_len++) | |
835 | { | |
836 | char x = (*line)[cmd_len]; | |
5c71cf23 PB |
837 | if (isupper(x)) |
838 | processed_cmd[cmd_len] = tolower(x); | |
dd3b648e RP |
839 | else |
840 | processed_cmd[cmd_len] = x; | |
841 | } | |
842 | processed_cmd[cmd_len] = '\0'; | |
843 | ||
844 | /* Check all possibilities in the current command list. */ | |
845 | found = 0; | |
846 | nfound = 0; | |
847 | for (c = list; c; c = c->next) | |
848 | { | |
849 | if (!strncmp (processed_cmd, c->name, cmd_len)) | |
850 | { | |
851 | found = c; | |
852 | nfound++; | |
853 | if (c->name[cmd_len] == 0) | |
854 | { | |
855 | nfound = 1; | |
856 | break; | |
857 | } | |
858 | } | |
859 | } | |
860 | ||
861 | /* Report error for undefined command name. */ | |
862 | ||
863 | if (nfound != 1) | |
864 | { | |
865 | if (nfound > 1 && allow_unknown >= 0) | |
866 | { | |
867 | ambbuf[0] = 0; | |
868 | for (c = list; c; c = c->next) | |
869 | if (!strncmp (processed_cmd, c->name, cmd_len)) | |
870 | { | |
871 | if (strlen (ambbuf) + strlen (c->name) + 6 < sizeof ambbuf) | |
872 | { | |
873 | if (strlen (ambbuf)) | |
874 | strcat (ambbuf, ", "); | |
875 | strcat (ambbuf, c->name); | |
876 | } | |
877 | else | |
878 | { | |
879 | strcat (ambbuf, ".."); | |
880 | break; | |
881 | } | |
882 | } | |
883 | error ("Ambiguous %scommand \"%s\": %s.", cmdtype, | |
884 | processed_cmd, ambbuf); | |
885 | } | |
886 | else if (!allow_unknown) | |
887 | error ("Undefined %scommand: \"%s\".", cmdtype, processed_cmd); | |
888 | return 0; | |
889 | } | |
890 | ||
891 | /* Skip whitespace before the argument. */ | |
892 | ||
893 | while (*p == ' ' || *p == '\t') p++; | |
894 | *line = p; | |
895 | ||
896 | if (found->prefixlist && *p) | |
897 | { | |
898 | c = lookup_cmd (line, *found->prefixlist, found->prefixname, | |
899 | found->allow_unknown); | |
900 | if (c) | |
901 | return c; | |
902 | } | |
903 | ||
904 | return found; | |
905 | } | |
906 | #endif | |
907 | ||
908 | /* Helper function for SYMBOL_COMPLETION_FUNCTION. */ | |
909 | ||
910 | /* Return a vector of char pointers which point to the different | |
a32ebcfd JK |
911 | possible completions in LIST of TEXT. |
912 | ||
913 | WORD points in the same buffer as TEXT, and completions should be | |
914 | returned relative to this position. For example, suppose TEXT is "foo" | |
915 | and we want to complete to "foobar". If WORD is "oo", return | |
916 | "oobar"; if WORD is "baz/foo", return "baz/foobar". */ | |
dd3b648e RP |
917 | |
918 | char ** | |
a32ebcfd | 919 | complete_on_cmdlist (list, text, word) |
dd3b648e RP |
920 | struct cmd_list_element *list; |
921 | char *text; | |
a32ebcfd | 922 | char *word; |
dd3b648e RP |
923 | { |
924 | struct cmd_list_element *ptr; | |
925 | char **matchlist; | |
926 | int sizeof_matchlist; | |
927 | int matches; | |
928 | int textlen = strlen (text); | |
929 | ||
930 | sizeof_matchlist = 10; | |
931 | matchlist = (char **) xmalloc (sizeof_matchlist * sizeof (char *)); | |
932 | matches = 0; | |
933 | ||
934 | for (ptr = list; ptr; ptr = ptr->next) | |
935 | if (!strncmp (ptr->name, text, textlen) | |
936 | && !ptr->abbrev_flag | |
1ab3bf1b | 937 | && (ptr->function.cfunc |
dd3b648e RP |
938 | || ptr->prefixlist)) |
939 | { | |
940 | if (matches == sizeof_matchlist) | |
941 | { | |
942 | sizeof_matchlist *= 2; | |
943 | matchlist = (char **) xrealloc ((char *)matchlist, | |
944 | (sizeof_matchlist | |
945 | * sizeof (char *))); | |
946 | } | |
947 | ||
948 | matchlist[matches] = (char *) | |
a32ebcfd JK |
949 | xmalloc (strlen (word) + strlen (ptr->name) + 1); |
950 | if (word == text) | |
951 | strcpy (matchlist[matches], ptr->name); | |
952 | else if (word > text) | |
953 | { | |
954 | /* Return some portion of ptr->name. */ | |
955 | strcpy (matchlist[matches], ptr->name + (word - text)); | |
956 | } | |
957 | else | |
958 | { | |
959 | /* Return some of text plus ptr->name. */ | |
960 | strncpy (matchlist[matches], word, text - word); | |
961 | matchlist[matches][text - word] = '\0'; | |
962 | strcat (matchlist[matches], ptr->name); | |
963 | } | |
964 | ++matches; | |
dd3b648e RP |
965 | } |
966 | ||
967 | if (matches == 0) | |
968 | { | |
be772100 | 969 | free ((PTR)matchlist); |
dd3b648e RP |
970 | matchlist = 0; |
971 | } | |
972 | else | |
973 | { | |
974 | matchlist = (char **) xrealloc ((char *)matchlist, ((matches + 1) | |
975 | * sizeof (char *))); | |
976 | matchlist[matches] = (char *) 0; | |
977 | } | |
978 | ||
979 | return matchlist; | |
980 | } | |
981 | ||
982 | static int | |
983 | parse_binary_operation (arg) | |
984 | char *arg; | |
985 | { | |
986 | int length; | |
987 | ||
988 | if (!arg || !*arg) | |
989 | return 1; | |
990 | ||
991 | length = strlen (arg); | |
992 | ||
993 | while (arg[length - 1] == ' ' || arg[length - 1] == '\t') | |
994 | length--; | |
995 | ||
996 | if (!strncmp (arg, "on", length) | |
997 | || !strncmp (arg, "1", length) | |
998 | || !strncmp (arg, "yes", length)) | |
999 | return 1; | |
1000 | else | |
1001 | if (!strncmp (arg, "off", length) | |
1002 | || !strncmp (arg, "0", length) | |
1003 | || !strncmp (arg, "no", length)) | |
1004 | return 0; | |
1005 | else | |
1006 | { | |
1007 | error ("\"on\" or \"off\" expected."); | |
1008 | return 0; | |
1009 | } | |
1010 | } | |
1011 | ||
1012 | /* Do a "set" or "show" command. ARG is NULL if no argument, or the text | |
1013 | of the argument, and FROM_TTY is nonzero if this command is being entered | |
1014 | directly by the user (i.e. these are just like any other | |
1015 | command). C is the command list element for the command. */ | |
1016 | void | |
1017 | do_setshow_command (arg, from_tty, c) | |
1018 | char *arg; | |
1019 | int from_tty; | |
1020 | struct cmd_list_element *c; | |
1021 | { | |
1022 | if (c->type == set_cmd) | |
1023 | { | |
1024 | switch (c->var_type) | |
1025 | { | |
1026 | case var_string: | |
1027 | { | |
1028 | char *new; | |
1029 | char *p; | |
1030 | char *q; | |
1031 | int ch; | |
1032 | ||
1033 | if (arg == NULL) | |
1034 | arg = ""; | |
1035 | new = (char *) xmalloc (strlen (arg) + 2); | |
1036 | p = arg; q = new; | |
1ab3bf1b | 1037 | while ((ch = *p++) != '\000') |
dd3b648e RP |
1038 | { |
1039 | if (ch == '\\') | |
1040 | { | |
1041 | /* \ at end of argument is used after spaces | |
1042 | so they won't be lost. */ | |
1043 | if (*p == 0) | |
1044 | break; | |
1045 | ch = parse_escape (&p); | |
1046 | if (ch == 0) | |
1047 | break; /* C loses */ | |
1048 | else if (ch > 0) | |
1049 | *q++ = ch; | |
1050 | } | |
1051 | else | |
1052 | *q++ = ch; | |
1053 | } | |
1054 | if (*(p - 1) != '\\') | |
1055 | *q++ = ' '; | |
1056 | *q++ = '\0'; | |
1057 | new = (char *) xrealloc (new, q - new); | |
1058 | if (*(char **)c->var != NULL) | |
1059 | free (*(char **)c->var); | |
1060 | *(char **) c->var = new; | |
1061 | } | |
1062 | break; | |
1063 | case var_string_noescape: | |
1064 | if (arg == NULL) | |
1065 | arg = ""; | |
1066 | if (*(char **)c->var != NULL) | |
1067 | free (*(char **)c->var); | |
1068 | *(char **) c->var = savestring (arg, strlen (arg)); | |
1069 | break; | |
1070 | case var_filename: | |
1071 | if (arg == NULL) | |
1072 | error_no_arg ("filename to set it to."); | |
1073 | if (*(char **)c->var != NULL) | |
1074 | free (*(char **)c->var); | |
1075 | *(char **)c->var = tilde_expand (arg); | |
1076 | break; | |
1077 | case var_boolean: | |
1078 | *(int *) c->var = parse_binary_operation (arg); | |
1079 | break; | |
1080 | case var_uinteger: | |
1081 | if (arg == NULL) | |
1082 | error_no_arg ("integer to set it to."); | |
4966c17c JG |
1083 | *(unsigned int *) c->var = parse_and_eval_address (arg); |
1084 | if (*(unsigned int *) c->var == 0) | |
1085 | *(unsigned int *) c->var = UINT_MAX; | |
dd3b648e | 1086 | break; |
359a097f JK |
1087 | case var_integer: |
1088 | { | |
1089 | unsigned int val; | |
1090 | if (arg == NULL) | |
1091 | error_no_arg ("integer to set it to."); | |
1092 | val = parse_and_eval_address (arg); | |
1093 | if (val == 0) | |
1094 | *(int *) c->var = INT_MAX; | |
1095 | else if (val >= INT_MAX) | |
1096 | error ("integer %u out of range", val); | |
1097 | else | |
1098 | *(int *) c->var = val; | |
1099 | break; | |
1100 | } | |
dd3b648e RP |
1101 | case var_zinteger: |
1102 | if (arg == NULL) | |
1103 | error_no_arg ("integer to set it to."); | |
1104 | *(int *) c->var = parse_and_eval_address (arg); | |
1105 | break; | |
1106 | default: | |
1107 | error ("gdb internal error: bad var_type in do_setshow_command"); | |
1108 | } | |
1109 | } | |
1110 | else if (c->type == show_cmd) | |
1111 | { | |
1112 | /* Print doc minus "show" at start. */ | |
199b2450 | 1113 | print_doc_line (gdb_stdout, c->doc + 5); |
dd3b648e | 1114 | |
199b2450 | 1115 | fputs_filtered (" is ", gdb_stdout); |
dd3b648e RP |
1116 | wrap_here (" "); |
1117 | switch (c->var_type) | |
1118 | { | |
1119 | case var_string: | |
1120 | { | |
1121 | unsigned char *p; | |
199b2450 | 1122 | fputs_filtered ("\"", gdb_stdout); |
dd3b648e | 1123 | for (p = *(unsigned char **) c->var; *p != '\0'; p++) |
199b2450 TL |
1124 | gdb_printchar (*p, gdb_stdout, '"'); |
1125 | fputs_filtered ("\"", gdb_stdout); | |
dd3b648e RP |
1126 | } |
1127 | break; | |
1128 | case var_string_noescape: | |
1129 | case var_filename: | |
199b2450 TL |
1130 | fputs_filtered ("\"", gdb_stdout); |
1131 | fputs_filtered (*(char **) c->var, gdb_stdout); | |
1132 | fputs_filtered ("\"", gdb_stdout); | |
dd3b648e RP |
1133 | break; |
1134 | case var_boolean: | |
199b2450 | 1135 | fputs_filtered (*(int *) c->var ? "on" : "off", gdb_stdout); |
dd3b648e RP |
1136 | break; |
1137 | case var_uinteger: | |
1138 | if (*(unsigned int *) c->var == UINT_MAX) { | |
199b2450 | 1139 | fputs_filtered ("unlimited", gdb_stdout); |
dd3b648e RP |
1140 | break; |
1141 | } | |
1142 | /* else fall through */ | |
1143 | case var_zinteger: | |
199b2450 | 1144 | fprintf_filtered (gdb_stdout, "%u", *(unsigned int *) c->var); |
dd3b648e | 1145 | break; |
359a097f JK |
1146 | case var_integer: |
1147 | if (*(int *) c->var == INT_MAX) | |
1148 | { | |
199b2450 | 1149 | fputs_filtered ("unlimited", gdb_stdout); |
359a097f JK |
1150 | } |
1151 | else | |
199b2450 | 1152 | fprintf_filtered (gdb_stdout, "%d", *(int *) c->var); |
359a097f JK |
1153 | break; |
1154 | ||
dd3b648e RP |
1155 | default: |
1156 | error ("gdb internal error: bad var_type in do_setshow_command"); | |
1157 | } | |
199b2450 | 1158 | fputs_filtered (".\n", gdb_stdout); |
dd3b648e RP |
1159 | } |
1160 | else | |
1161 | error ("gdb internal error: bad cmd_type in do_setshow_command"); | |
1ab3bf1b | 1162 | (*c->function.sfunc) (NULL, from_tty, c); |
dd3b648e RP |
1163 | } |
1164 | ||
1165 | /* Show all the settings in a list of show commands. */ | |
1166 | ||
1167 | void | |
1168 | cmd_show_list (list, from_tty, prefix) | |
1169 | struct cmd_list_element *list; | |
1170 | int from_tty; | |
1171 | char *prefix; | |
1172 | { | |
1173 | for (; list != NULL; list = list->next) { | |
1174 | /* If we find a prefix, run its list, prefixing our output by its | |
1175 | prefix (with "show " skipped). */ | |
1176 | if (list->prefixlist && !list->abbrev_flag) | |
1177 | cmd_show_list (*list->prefixlist, from_tty, list->prefixname + 5); | |
1178 | if (list->type == show_cmd) | |
1179 | { | |
199b2450 TL |
1180 | fputs_filtered (prefix, gdb_stdout); |
1181 | fputs_filtered (list->name, gdb_stdout); | |
1182 | fputs_filtered (": ", gdb_stdout); | |
dd3b648e RP |
1183 | do_setshow_command ((char *)NULL, from_tty, list); |
1184 | } | |
1185 | } | |
1186 | } | |
1187 | ||
e1ce8aa5 | 1188 | /* ARGSUSED */ |
dd3b648e RP |
1189 | static void |
1190 | shell_escape (arg, from_tty) | |
1191 | char *arg; | |
1192 | int from_tty; | |
1193 | { | |
87237c52 JK |
1194 | #ifdef CANT_FORK |
1195 | /* FIXME: what about errors (I don't know how GO32 system() handles | |
1196 | them)? */ | |
1197 | system (arg); | |
1198 | #else /* Can fork. */ | |
dd3b648e RP |
1199 | int rc, status, pid; |
1200 | char *p, *user_shell; | |
dd3b648e RP |
1201 | |
1202 | if ((user_shell = (char *) getenv ("SHELL")) == NULL) | |
1203 | user_shell = "/bin/sh"; | |
1204 | ||
1205 | /* Get the name of the shell for arg0 */ | |
1ab3bf1b | 1206 | if ((p = strrchr (user_shell, '/')) == NULL) |
dd3b648e RP |
1207 | p = user_shell; |
1208 | else | |
1209 | p++; /* Get past '/' */ | |
1210 | ||
1211 | if ((pid = fork()) == 0) | |
1212 | { | |
1213 | if (!arg) | |
1214 | execl (user_shell, p, 0); | |
1215 | else | |
1216 | execl (user_shell, p, "-c", arg, 0); | |
1217 | ||
5b3591ab JK |
1218 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell, |
1219 | safe_strerror (errno)); | |
1220 | gdb_flush (gdb_stderr); | |
1221 | _exit (0177); | |
dd3b648e RP |
1222 | } |
1223 | ||
1224 | if (pid != -1) | |
1225 | while ((rc = wait (&status)) != pid && rc != -1) | |
1226 | ; | |
1227 | else | |
1228 | error ("Fork failed"); | |
87237c52 | 1229 | #endif /* Can fork. */ |
dd3b648e RP |
1230 | } |
1231 | ||
1232 | static void | |
1233 | make_command (arg, from_tty) | |
1234 | char *arg; | |
1235 | int from_tty; | |
1236 | { | |
1237 | char *p; | |
1238 | ||
1239 | if (arg == 0) | |
1240 | p = "make"; | |
1241 | else | |
1242 | { | |
1243 | p = xmalloc (sizeof("make ") + strlen(arg)); | |
1244 | strcpy (p, "make "); | |
1245 | strcpy (p + sizeof("make ")-1, arg); | |
1246 | } | |
1247 | ||
1248 | shell_escape (p, from_tty); | |
1249 | } | |
1250 | ||
3f2e006b | 1251 | static void |
4369a140 | 1252 | show_user_1 (c, stream) |
3f2e006b | 1253 | struct cmd_list_element *c; |
199b2450 | 1254 | GDB_FILE *stream; |
3f2e006b JG |
1255 | { |
1256 | register struct command_line *cmdlines; | |
1257 | ||
1258 | cmdlines = c->user_commands; | |
1259 | if (!cmdlines) | |
1260 | return; | |
3021c40d JG |
1261 | fputs_filtered ("User command ", stream); |
1262 | fputs_filtered (c->name, stream); | |
1263 | fputs_filtered (":\n", stream); | |
3f2e006b JG |
1264 | while (cmdlines) |
1265 | { | |
3021c40d JG |
1266 | fputs_filtered (cmdlines->line, stream); |
1267 | fputs_filtered ("\n", stream); | |
3f2e006b JG |
1268 | cmdlines = cmdlines->next; |
1269 | } | |
1270 | fputs_filtered ("\n", stream); | |
1271 | } | |
1272 | ||
1273 | /* ARGSUSED */ | |
1274 | static void | |
4369a140 | 1275 | show_user (args, from_tty) |
3f2e006b JG |
1276 | char *args; |
1277 | int from_tty; | |
1278 | { | |
1279 | struct cmd_list_element *c; | |
1280 | extern struct cmd_list_element *cmdlist; | |
1281 | ||
1282 | if (args) | |
1283 | { | |
1284 | c = lookup_cmd (&args, cmdlist, "", 0, 1); | |
1285 | if (c->class != class_user) | |
1286 | error ("Not a user command."); | |
199b2450 | 1287 | show_user_1 (c, gdb_stdout); |
3f2e006b JG |
1288 | } |
1289 | else | |
1290 | { | |
1291 | for (c = cmdlist; c; c = c->next) | |
1292 | { | |
1293 | if (c->class == class_user) | |
199b2450 | 1294 | show_user_1 (c, gdb_stdout); |
3f2e006b JG |
1295 | } |
1296 | } | |
1297 | } | |
1298 | ||
dd3b648e RP |
1299 | void |
1300 | _initialize_command () | |
1301 | { | |
1302 | add_com ("shell", class_support, shell_escape, | |
1303 | "Execute the rest of the line as a shell command. \n\ | |
1304 | With no arguments, run an inferior shell."); | |
dd3b648e RP |
1305 | add_com ("make", class_support, make_command, |
1306 | "Run the ``make'' program using the rest of the line as arguments."); | |
4369a140 JG |
1307 | add_cmd ("user", no_class, show_user, |
1308 | "Show definitions of user defined commands.\n\ | |
3f2e006b | 1309 | Argument is the name of the user defined command.\n\ |
4369a140 | 1310 | With no argument, show definitions of all user defined commands.", &showlist); |
dd3b648e | 1311 | } |