1 /* Multiple source language support for GDB.
3 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000,
4 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
6 Contributed by the Department of Computer Science at the State University
7 of New York at Buffalo.
9 This file is part of GDB.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 59 Temple Place - Suite 330,
24 Boston, MA 02111-1307, USA. */
26 /* This file contains functions that return things that are specific
27 to languages. Each function should examine current_language if necessary,
28 and return the appropriate result. */
30 /* FIXME: Most of these would be better organized as macros which
31 return data out of a "language-specific" struct pointer that is set
32 whenever the working language changes. That would be a lot faster. */
36 #include "gdb_string.h"
42 #include "expression.h"
45 #include "parser-defs.h"
49 extern void _initialize_language (void);
51 static void set_case_str (void);
53 static void set_range_str (void);
55 static void set_type_str (void);
57 static void set_lang_str (void);
59 static void unk_lang_error (char *);
61 static int unk_lang_parser (void);
63 static void show_check (char *, int);
65 static void set_check (char *, int);
67 static void set_type_range_case (void);
69 static void unk_lang_emit_char (int c, struct ui_file *stream, int quoter);
71 static void unk_lang_printchar (int c, struct ui_file *stream);
73 static struct type *unk_lang_create_fundamental_type (struct objfile *, int);
75 static void unk_lang_print_type (struct type *, char *, struct ui_file *,
78 static int unk_lang_value_print (struct value *, struct ui_file *, int, enum val_prettyprint);
80 static CORE_ADDR unk_lang_trampoline (CORE_ADDR pc);
82 /* Forward declaration */
83 extern const struct language_defn unknown_language_defn;
85 /* The current (default at startup) state of type and range checking.
86 (If the modes are set to "auto", though, these are changed based
87 on the default language at startup, and then again based on the
88 language of the first source file. */
90 enum range_mode range_mode = range_mode_auto;
91 enum range_check range_check = range_check_off;
92 enum type_mode type_mode = type_mode_auto;
93 enum type_check type_check = type_check_off;
94 enum case_mode case_mode = case_mode_auto;
95 enum case_sensitivity case_sensitivity = case_sensitive_on;
97 /* The current language and language_mode (see language.h) */
99 const struct language_defn *current_language = &unknown_language_defn;
100 enum language_mode language_mode = language_mode_auto;
102 /* The language that the user expects to be typing in (the language
103 of main(), or the last language we notified them about, or C). */
105 const struct language_defn *expected_language;
107 /* The list of supported languages. The list itself is malloc'd. */
109 static const struct language_defn **languages;
110 static unsigned languages_size;
111 static unsigned languages_allocsize;
112 #define DEFAULT_ALLOCSIZE 4
114 /* The "set language/type/range" commands all put stuff in these
115 buffers. This is to make them work as set/show commands. The
116 user's string is copied here, then the set_* commands look at
117 them and update them to something that looks nice when it is
120 static char *language;
123 static char *case_sensitive;
125 /* Warning issued when current_language and the language of the current
126 frame do not match. */
127 char lang_frame_mismatch_warn[] =
128 "Warning: the current language does not match this frame.";
130 /* This page contains the functions corresponding to GDB commands
131 and their helpers. */
133 /* Show command. Display a warning if the language set
134 does not match the frame. */
136 show_language_command (struct ui_file *file, int from_tty,
137 struct cmd_list_element *c, const char *value)
139 enum language flang; /* The language of the current frame */
141 deprecated_show_value_hack (file, from_tty, c, value);
142 flang = get_frame_language ();
143 if (flang != language_unknown &&
144 language_mode == language_mode_manual &&
145 current_language->la_language != flang)
146 printf_filtered ("%s\n", lang_frame_mismatch_warn);
149 /* Set command. Change the current working language. */
151 set_language_command (char *ignore, int from_tty, struct cmd_list_element *c)
157 if (!language || !language[0])
159 printf_unfiltered (_("\
160 The currently understood settings are:\n\n\
161 local or auto Automatic setting based on source file\n"));
163 for (i = 0; i < languages_size; ++i)
165 /* Already dealt with these above. */
166 if (languages[i]->la_language == language_unknown
167 || languages[i]->la_language == language_auto)
170 /* FIXME: i18n: for now assume that the human-readable name
171 is just a capitalization of the internal name. */
172 printf_unfiltered ("%-16s Use the %c%s language\n",
173 languages[i]->la_name,
174 /* Capitalize first letter of language
176 toupper (languages[i]->la_name[0]),
177 languages[i]->la_name + 1);
179 /* Restore the silly string. */
180 set_language (current_language->la_language);
184 /* Search the list of languages for a match. */
185 for (i = 0; i < languages_size; i++)
187 if (strcmp (languages[i]->la_name, language) == 0)
189 /* Found it! Go into manual mode, and use this language. */
190 if (languages[i]->la_language == language_auto)
192 /* Enter auto mode. Set to the current frame's language, if known. */
193 language_mode = language_mode_auto;
194 flang = get_frame_language ();
195 if (flang != language_unknown)
196 set_language (flang);
197 expected_language = current_language;
202 /* Enter manual mode. Set the specified language. */
203 language_mode = language_mode_manual;
204 current_language = languages[i];
205 set_type_range_case ();
207 expected_language = current_language;
213 /* Reset the language (esp. the global string "language") to the
215 err_lang = savestring (language, strlen (language));
216 make_cleanup (xfree, err_lang); /* Free it after error */
217 set_language (current_language->la_language);
218 error (_("Unknown language `%s'."), err_lang);
221 /* Show command. Display a warning if the type setting does
222 not match the current language. */
224 show_type_command (struct ui_file *file, int from_tty,
225 struct cmd_list_element *c, const char *value)
227 deprecated_show_value_hack (file, from_tty, c, value);
228 if (type_check != current_language->la_type_check)
230 "Warning: the current type check setting does not match the language.\n");
233 /* Set command. Change the setting for type checking. */
235 set_type_command (char *ignore, int from_tty, struct cmd_list_element *c)
237 if (strcmp (type, "on") == 0)
239 type_check = type_check_on;
240 type_mode = type_mode_manual;
242 else if (strcmp (type, "warn") == 0)
244 type_check = type_check_warn;
245 type_mode = type_mode_manual;
247 else if (strcmp (type, "off") == 0)
249 type_check = type_check_off;
250 type_mode = type_mode_manual;
252 else if (strcmp (type, "auto") == 0)
254 type_mode = type_mode_auto;
255 set_type_range_case ();
256 /* Avoid hitting the set_type_str call below. We
257 did it in set_type_range_case. */
262 warning (_("Unrecognized type check setting: \"%s\""), type);
265 show_type_command (NULL, from_tty, NULL, NULL);
268 /* Show command. Display a warning if the range setting does
269 not match the current language. */
271 show_range_command (struct ui_file *file, int from_tty,
272 struct cmd_list_element *c, const char *value)
274 deprecated_show_value_hack (file, from_tty, c, value);
275 if (range_check != current_language->la_range_check)
277 "Warning: the current range check setting does not match the language.\n");
280 /* Set command. Change the setting for range checking. */
282 set_range_command (char *ignore, int from_tty, struct cmd_list_element *c)
284 if (strcmp (range, "on") == 0)
286 range_check = range_check_on;
287 range_mode = range_mode_manual;
289 else if (strcmp (range, "warn") == 0)
291 range_check = range_check_warn;
292 range_mode = range_mode_manual;
294 else if (strcmp (range, "off") == 0)
296 range_check = range_check_off;
297 range_mode = range_mode_manual;
299 else if (strcmp (range, "auto") == 0)
301 range_mode = range_mode_auto;
302 set_type_range_case ();
303 /* Avoid hitting the set_range_str call below. We
304 did it in set_type_range_case. */
309 warning (_("Unrecognized range check setting: \"%s\""), range);
312 show_range_command (NULL, from_tty, NULL, NULL);
315 /* Show command. Display a warning if the case sensitivity setting does
316 not match the current language. */
318 show_case_command (struct ui_file *file, int from_tty,
319 struct cmd_list_element *c, const char *value)
321 deprecated_show_value_hack (file, from_tty, c, value);
322 if (case_sensitivity != current_language->la_case_sensitivity)
324 "Warning: the current case sensitivity setting does not match the language.\n");
327 /* Set command. Change the setting for case sensitivity. */
329 set_case_command (char *ignore, int from_tty, struct cmd_list_element *c)
331 if (DEPRECATED_STREQ (case_sensitive, "on"))
333 case_sensitivity = case_sensitive_on;
334 case_mode = case_mode_manual;
336 else if (DEPRECATED_STREQ (case_sensitive, "off"))
338 case_sensitivity = case_sensitive_off;
339 case_mode = case_mode_manual;
341 else if (DEPRECATED_STREQ (case_sensitive, "auto"))
343 case_mode = case_mode_auto;
344 set_type_range_case ();
345 /* Avoid hitting the set_case_str call below. We
346 did it in set_type_range_case. */
351 warning (_("Unrecognized case-sensitive setting: \"%s\""), case_sensitive);
354 show_case_command (NULL, from_tty, NULL, NULL);
357 /* Set the status of range and type checking and case sensitivity based on
358 the current modes and the current language.
359 If SHOW is non-zero, then print out the current language,
360 type and range checking status. */
362 set_type_range_case (void)
365 if (range_mode == range_mode_auto)
366 range_check = current_language->la_range_check;
368 if (type_mode == type_mode_auto)
369 type_check = current_language->la_type_check;
371 if (case_mode == case_mode_auto)
372 case_sensitivity = current_language->la_case_sensitivity;
379 /* Set current language to (enum language) LANG. Returns previous language. */
382 set_language (enum language lang)
385 enum language prev_language;
387 prev_language = current_language->la_language;
389 for (i = 0; i < languages_size; i++)
391 if (languages[i]->la_language == lang)
393 current_language = languages[i];
394 set_type_range_case ();
400 return prev_language;
403 /* This page contains functions that update the global vars
404 language, type and range. */
412 if (language_mode == language_mode_auto)
413 prefix = "auto; currently ";
415 language = concat (prefix, current_language->la_name, NULL);
421 char *tmp = NULL, *prefix = "";
425 if (type_mode == type_mode_auto)
426 prefix = "auto; currently ";
436 case type_check_warn:
440 error (_("Unrecognized type check setting."));
443 type = concat (prefix, tmp, NULL);
449 char *tmp, *pref = "";
451 if (range_mode == range_mode_auto)
452 pref = "auto; currently ";
459 case range_check_off:
462 case range_check_warn:
466 error (_("Unrecognized range check setting."));
471 range = concat (pref, tmp, NULL);
477 char *tmp = NULL, *prefix = "";
479 if (case_mode==case_mode_auto)
480 prefix = "auto; currently ";
482 switch (case_sensitivity)
484 case case_sensitive_on:
487 case case_sensitive_off:
491 error (_("Unrecognized case-sensitive setting."));
494 xfree (case_sensitive);
495 case_sensitive = concat (prefix, tmp, NULL);
498 /* Print out the current language settings: language, range and
499 type checking. If QUIETLY, print only what has changed. */
502 language_info (int quietly)
504 if (quietly && expected_language == current_language)
507 expected_language = current_language;
508 printf_unfiltered (_("Current language: %s\n"), language);
509 show_language_command (NULL, 1, NULL, NULL);
513 printf_unfiltered (_("Type checking: %s\n"), type);
514 show_type_command (NULL, 1, NULL, NULL);
515 printf_unfiltered (_("Range checking: %s\n"), range);
516 show_range_command (NULL, 1, NULL, NULL);
517 printf_unfiltered (_("Case sensitivity: %s\n"), case_sensitive);
518 show_case_command (NULL, 1, NULL, NULL);
522 /* Return the result of a binary operation. */
524 #if 0 /* Currently unused */
527 binop_result_type (struct value *v1, struct value *v2)
530 struct type *t1 = check_typedef (VALUE_TYPE (v1));
531 struct type *t2 = check_typedef (VALUE_TYPE (v2));
533 int l1 = TYPE_LENGTH (t1);
534 int l2 = TYPE_LENGTH (t2);
536 switch (current_language->la_language)
541 if (TYPE_CODE (t1) == TYPE_CODE_FLT)
542 return TYPE_CODE (t2) == TYPE_CODE_FLT && l2 > l1 ?
543 VALUE_TYPE (v2) : VALUE_TYPE (v1);
544 else if (TYPE_CODE (t2) == TYPE_CODE_FLT)
545 return TYPE_CODE (t1) == TYPE_CODE_FLT && l1 > l2 ?
546 VALUE_TYPE (v1) : VALUE_TYPE (v2);
547 else if (TYPE_UNSIGNED (t1) && l1 > l2)
548 return VALUE_TYPE (v1);
549 else if (TYPE_UNSIGNED (t2) && l2 > l1)
550 return VALUE_TYPE (v2);
551 else /* Both are signed. Result is the longer type */
552 return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2);
555 /* If we are doing type-checking, l1 should equal l2, so this is
557 return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2);
560 internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
561 return (struct type *) 0; /* For lint */
566 /* This page contains functions that are used in type/range checking.
567 They all return zero if the type/range check fails.
569 It is hoped that these will make extending GDB to parse different
570 languages a little easier. These are primarily used in eval.c when
571 evaluating expressions and making sure that their types are correct.
572 Instead of having a mess of conjucted/disjuncted expressions in an "if",
573 the ideas of type can be wrapped up in the following functions.
575 Note that some of them are not currently dependent upon which language
576 is currently being parsed. For example, floats are the same in
577 C and Modula-2 (ie. the only floating point type has TYPE_CODE of
578 TYPE_CODE_FLT), while booleans are different. */
580 /* Returns non-zero if its argument is a simple type. This is the same for
581 both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur,
582 and thus will never cause the failure of the test. */
584 simple_type (struct type *type)
586 CHECK_TYPEDEF (type);
587 switch (TYPE_CODE (type))
593 case TYPE_CODE_RANGE:
602 /* Returns non-zero if its argument is of an ordered type.
603 An ordered type is one in which the elements can be tested for the
604 properties of "greater than", "less than", etc, or for which the
605 operations "increment" or "decrement" make sense. */
607 ordered_type (struct type *type)
609 CHECK_TYPEDEF (type);
610 switch (TYPE_CODE (type))
616 case TYPE_CODE_RANGE:
624 /* Returns non-zero if the two types are the same */
626 same_type (struct type *arg1, struct type *arg2)
628 CHECK_TYPEDEF (type);
629 if (structured_type (arg1) ? !structured_type (arg2) : structured_type (arg2))
630 /* One is structured and one isn't */
632 else if (structured_type (arg1) && structured_type (arg2))
634 else if (numeric_type (arg1) && numeric_type (arg2))
635 return (TYPE_CODE (arg2) == TYPE_CODE (arg1)) &&
636 (TYPE_UNSIGNED (arg1) == TYPE_UNSIGNED (arg2))
642 /* Returns non-zero if the type is integral */
644 integral_type (struct type *type)
646 CHECK_TYPEDEF (type);
647 switch (current_language->la_language)
652 return (TYPE_CODE (type) != TYPE_CODE_INT) &&
653 (TYPE_CODE (type) != TYPE_CODE_ENUM) ? 0 : 1;
655 case language_pascal:
656 return TYPE_CODE (type) != TYPE_CODE_INT ? 0 : 1;
658 error (_("Language not supported."));
662 /* Returns non-zero if the value is numeric */
664 numeric_type (struct type *type)
666 CHECK_TYPEDEF (type);
667 switch (TYPE_CODE (type))
678 /* Returns non-zero if the value is a character type */
680 character_type (struct type *type)
682 CHECK_TYPEDEF (type);
683 switch (current_language->la_language)
686 case language_pascal:
687 return TYPE_CODE (type) != TYPE_CODE_CHAR ? 0 : 1;
692 return (TYPE_CODE (type) == TYPE_CODE_INT) &&
693 TYPE_LENGTH (type) == sizeof (char)
700 /* Returns non-zero if the value is a string type */
702 string_type (struct type *type)
704 CHECK_TYPEDEF (type);
705 switch (current_language->la_language)
708 case language_pascal:
709 return TYPE_CODE (type) != TYPE_CODE_STRING ? 0 : 1;
714 /* C does not have distinct string type. */
721 /* Returns non-zero if the value is a boolean type */
723 boolean_type (struct type *type)
725 CHECK_TYPEDEF (type);
726 if (TYPE_CODE (type) == TYPE_CODE_BOOL)
728 switch (current_language->la_language)
733 /* Might be more cleanly handled by having a
734 TYPE_CODE_INT_NOT_BOOL for (the deleted) CHILL and such
735 languages, or a TYPE_CODE_INT_OR_BOOL for C. */
736 if (TYPE_CODE (type) == TYPE_CODE_INT)
744 /* Returns non-zero if the value is a floating-point type */
746 float_type (struct type *type)
748 CHECK_TYPEDEF (type);
749 return TYPE_CODE (type) == TYPE_CODE_FLT;
752 /* Returns non-zero if the value is a pointer type */
754 pointer_type (struct type *type)
756 return TYPE_CODE (type) == TYPE_CODE_PTR ||
757 TYPE_CODE (type) == TYPE_CODE_REF;
760 /* Returns non-zero if the value is a structured type */
762 structured_type (struct type *type)
764 CHECK_TYPEDEF (type);
765 switch (current_language->la_language)
770 return (TYPE_CODE (type) == TYPE_CODE_STRUCT) ||
771 (TYPE_CODE (type) == TYPE_CODE_UNION) ||
772 (TYPE_CODE (type) == TYPE_CODE_ARRAY);
773 case language_pascal:
774 return (TYPE_CODE(type) == TYPE_CODE_STRUCT) ||
775 (TYPE_CODE(type) == TYPE_CODE_UNION) ||
776 (TYPE_CODE(type) == TYPE_CODE_SET) ||
777 (TYPE_CODE(type) == TYPE_CODE_ARRAY);
779 return (TYPE_CODE (type) == TYPE_CODE_STRUCT) ||
780 (TYPE_CODE (type) == TYPE_CODE_SET) ||
781 (TYPE_CODE (type) == TYPE_CODE_ARRAY);
789 lang_bool_type (void)
793 switch (current_language->la_language)
795 case language_fortran:
796 sym = lookup_symbol ("logical", NULL, VAR_DOMAIN, NULL, NULL);
799 type = SYMBOL_TYPE (sym);
800 if (type && TYPE_CODE (type) == TYPE_CODE_BOOL)
803 return builtin_type_f_logical_s2;
805 case language_pascal:
806 if (current_language->la_language==language_cplus)
807 {sym = lookup_symbol ("bool", NULL, VAR_DOMAIN, NULL, NULL);}
809 {sym = lookup_symbol ("boolean", NULL, VAR_DOMAIN, NULL, NULL);}
812 type = SYMBOL_TYPE (sym);
813 if (type && TYPE_CODE (type) == TYPE_CODE_BOOL)
816 return builtin_type_bool;
818 sym = lookup_symbol ("boolean", NULL, VAR_DOMAIN, NULL, NULL);
821 type = SYMBOL_TYPE (sym);
822 if (type && TYPE_CODE (type) == TYPE_CODE_BOOL)
825 return java_boolean_type;
827 return builtin_type_int;
831 /* This page contains functions that return info about
832 (struct value) values used in GDB. */
834 /* Returns non-zero if the value VAL represents a true value. */
836 value_true (struct value *val)
838 /* It is possible that we should have some sort of error if a non-boolean
839 value is used in this context. Possibly dependent on some kind of
840 "boolean-checking" option like range checking. But it should probably
841 not depend on the language except insofar as is necessary to identify
842 a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean
843 should be an error, probably). */
844 return !value_logical_not (val);
847 /* This page contains functions for the printing out of
848 error messages that occur during type- and range-
851 /* These are called when a language fails a type- or range-check. The
852 first argument should be a printf()-style format string, and the
853 rest of the arguments should be its arguments. If
854 [type|range]_check is [type|range]_check_on, an error is printed;
855 if [type|range]_check_warn, a warning; otherwise just the
859 type_error (const char *string,...)
862 va_start (args, string);
866 case type_check_warn:
867 vwarning (string, args);
870 verror (string, args);
873 /* FIXME: cagney/2002-01-30: Should this function print anything
874 when type error is off? */
875 vfprintf_filtered (gdb_stderr, string, args);
876 fprintf_filtered (gdb_stderr, "\n");
879 internal_error (__FILE__, __LINE__, _("bad switch"));
885 range_error (const char *string,...)
888 va_start (args, string);
892 case range_check_warn:
893 vwarning (string, args);
896 verror (string, args);
898 case range_check_off:
899 /* FIXME: cagney/2002-01-30: Should this function print anything
900 when range error is off? */
901 vfprintf_filtered (gdb_stderr, string, args);
902 fprintf_filtered (gdb_stderr, "\n");
905 internal_error (__FILE__, __LINE__, _("bad switch"));
911 /* This page contains miscellaneous functions */
913 /* Return the language enum for a given language string. */
916 language_enum (char *str)
920 for (i = 0; i < languages_size; i++)
921 if (DEPRECATED_STREQ (languages[i]->la_name, str))
922 return languages[i]->la_language;
924 return language_unknown;
927 /* Return the language struct for a given language enum. */
929 const struct language_defn *
930 language_def (enum language lang)
934 for (i = 0; i < languages_size; i++)
936 if (languages[i]->la_language == lang)
944 /* Return the language as a string */
946 language_str (enum language lang)
950 for (i = 0; i < languages_size; i++)
952 if (languages[i]->la_language == lang)
954 return languages[i]->la_name;
961 set_check (char *ignore, int from_tty)
964 "\"set check\" must be followed by the name of a check subcommand.\n");
965 help_list (setchecklist, "set check ", -1, gdb_stdout);
969 show_check (char *ignore, int from_tty)
971 cmd_show_list (showchecklist, from_tty, "");
974 /* Add a language to the set of known languages. */
977 add_language (const struct language_defn *lang)
979 if (lang->la_magic != LANG_MAGIC)
981 fprintf_unfiltered (gdb_stderr, "Magic number of %s language struct wrong\n",
983 internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
988 languages_allocsize = DEFAULT_ALLOCSIZE;
989 languages = (const struct language_defn **) xmalloc
990 (languages_allocsize * sizeof (*languages));
992 if (languages_size >= languages_allocsize)
994 languages_allocsize *= 2;
995 languages = (const struct language_defn **) xrealloc ((char *) languages,
996 languages_allocsize * sizeof (*languages));
998 languages[languages_size++] = lang;
1001 /* Iterate through all registered languages looking for and calling
1002 any non-NULL struct language_defn.skip_trampoline() functions.
1003 Return the result from the first that returns non-zero, or 0 if all
1006 skip_language_trampoline (CORE_ADDR pc)
1010 for (i = 0; i < languages_size; i++)
1012 if (languages[i]->skip_trampoline)
1014 CORE_ADDR real_pc = (languages[i]->skip_trampoline) (pc);
1023 /* Return demangled language symbol, or NULL.
1024 FIXME: Options are only useful for certain languages and ignored
1025 by others, so it would be better to remove them here and have a
1026 more flexible demangler for the languages that need it.
1027 FIXME: Sometimes the demangler is invoked when we don't know the
1028 language, so we can't use this everywhere. */
1030 language_demangle (const struct language_defn *current_language,
1031 const char *mangled, int options)
1033 if (current_language != NULL && current_language->la_demangle)
1034 return current_language->la_demangle (mangled, options);
1038 /* Return class name from physname or NULL. */
1040 language_class_name_from_physname (const struct language_defn *current_language,
1041 const char *physname)
1043 if (current_language != NULL && current_language->la_class_name_from_physname)
1044 return current_language->la_class_name_from_physname (physname);
1048 /* Return the default string containing the list of characters
1049 delimiting words. This is a reasonable default value that
1050 most languages should be able to use. */
1053 default_word_break_characters (void)
1055 return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-";
1058 /* Define the language that is no language. */
1061 unk_lang_parser (void)
1067 unk_lang_error (char *msg)
1069 error (_("Attempted to parse an expression with unknown language"));
1073 unk_lang_emit_char (int c, struct ui_file *stream, int quoter)
1075 error (_("internal error - unimplemented function unk_lang_emit_char called."));
1079 unk_lang_printchar (int c, struct ui_file *stream)
1081 error (_("internal error - unimplemented function unk_lang_printchar called."));
1085 unk_lang_printstr (struct ui_file *stream, const gdb_byte *string,
1086 unsigned int length, int width, int force_ellipses)
1088 error (_("internal error - unimplemented function unk_lang_printstr called."));
1091 static struct type *
1092 unk_lang_create_fundamental_type (struct objfile *objfile, int typeid)
1094 error (_("internal error - unimplemented function unk_lang_create_fundamental_type called."));
1098 unk_lang_print_type (struct type *type, char *varstring, struct ui_file *stream,
1099 int show, int level)
1101 error (_("internal error - unimplemented function unk_lang_print_type called."));
1105 unk_lang_val_print (struct type *type, const gdb_byte *valaddr,
1106 int embedded_offset, CORE_ADDR address,
1107 struct ui_file *stream, int format,
1108 int deref_ref, int recurse, enum val_prettyprint pretty)
1110 error (_("internal error - unimplemented function unk_lang_val_print called."));
1114 unk_lang_value_print (struct value *val, struct ui_file *stream, int format,
1115 enum val_prettyprint pretty)
1117 error (_("internal error - unimplemented function unk_lang_value_print called."));
1120 static CORE_ADDR unk_lang_trampoline (CORE_ADDR pc)
1125 /* Unknown languages just use the cplus demangler. */
1126 static char *unk_lang_demangle (const char *mangled, int options)
1128 return cplus_demangle (mangled, options);
1131 static char *unk_lang_class_name (const char *mangled)
1136 static const struct op_print unk_op_print_tab[] =
1138 {NULL, OP_NULL, PREC_NULL, 0}
1142 unknown_language_arch_info (struct gdbarch *gdbarch,
1143 struct language_arch_info *lai)
1145 lai->string_char_type = builtin_type (gdbarch)->builtin_char;
1146 lai->primitive_type_vector = GDBARCH_OBSTACK_CALLOC (gdbarch, 1,
1150 const struct language_defn unknown_language_defn =
1159 &exp_descriptor_standard,
1163 unk_lang_printchar, /* Print character constant */
1166 unk_lang_create_fundamental_type,
1167 unk_lang_print_type, /* Print a type using appropriate syntax */
1168 unk_lang_val_print, /* Print a value using appropriate syntax */
1169 unk_lang_value_print, /* Print a top-level value */
1170 unk_lang_trampoline, /* Language specific skip_trampoline */
1171 value_of_this, /* value_of_this */
1172 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
1173 basic_lookup_transparent_type,/* lookup_transparent_type */
1174 unk_lang_demangle, /* Language specific symbol demangler */
1175 unk_lang_class_name, /* Language specific class_name_from_physname */
1176 unk_op_print_tab, /* expression operators for printing */
1177 1, /* c-style arrays */
1178 0, /* String lower bound */
1180 default_word_break_characters,
1181 unknown_language_arch_info, /* la_language_arch_info. */
1185 /* These two structs define fake entries for the "local" and "auto" options. */
1186 const struct language_defn auto_language_defn =
1195 &exp_descriptor_standard,
1199 unk_lang_printchar, /* Print character constant */
1202 unk_lang_create_fundamental_type,
1203 unk_lang_print_type, /* Print a type using appropriate syntax */
1204 unk_lang_val_print, /* Print a value using appropriate syntax */
1205 unk_lang_value_print, /* Print a top-level value */
1206 unk_lang_trampoline, /* Language specific skip_trampoline */
1207 value_of_this, /* value_of_this */
1208 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
1209 basic_lookup_transparent_type,/* lookup_transparent_type */
1210 unk_lang_demangle, /* Language specific symbol demangler */
1211 unk_lang_class_name, /* Language specific class_name_from_physname */
1212 unk_op_print_tab, /* expression operators for printing */
1213 1, /* c-style arrays */
1214 0, /* String lower bound */
1216 default_word_break_characters,
1217 unknown_language_arch_info, /* la_language_arch_info. */
1221 const struct language_defn local_language_defn =
1230 &exp_descriptor_standard,
1234 unk_lang_printchar, /* Print character constant */
1237 unk_lang_create_fundamental_type,
1238 unk_lang_print_type, /* Print a type using appropriate syntax */
1239 unk_lang_val_print, /* Print a value using appropriate syntax */
1240 unk_lang_value_print, /* Print a top-level value */
1241 unk_lang_trampoline, /* Language specific skip_trampoline */
1242 value_of_this, /* value_of_this */
1243 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
1244 basic_lookup_transparent_type,/* lookup_transparent_type */
1245 unk_lang_demangle, /* Language specific symbol demangler */
1246 unk_lang_class_name, /* Language specific class_name_from_physname */
1247 unk_op_print_tab, /* expression operators for printing */
1248 1, /* c-style arrays */
1249 0, /* String lower bound */
1251 default_word_break_characters,
1252 unknown_language_arch_info, /* la_language_arch_info. */
1256 /* Per-architecture language information. */
1258 static struct gdbarch_data *language_gdbarch_data;
1260 struct language_gdbarch
1262 /* A vector of per-language per-architecture info. Indexed by "enum
1264 struct language_arch_info arch_info[nr_languages];
1268 language_gdbarch_post_init (struct gdbarch *gdbarch)
1270 struct language_gdbarch *l;
1273 l = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct language_gdbarch);
1274 for (i = 0; i < languages_size; i++)
1276 if (languages[i] != NULL
1277 && languages[i]->la_language_arch_info != NULL)
1278 languages[i]->la_language_arch_info
1279 (gdbarch, l->arch_info + languages[i]->la_language);
1285 language_string_char_type (const struct language_defn *la,
1286 struct gdbarch *gdbarch)
1288 struct language_gdbarch *ld = gdbarch_data (gdbarch,
1289 language_gdbarch_data);
1290 if (ld->arch_info[la->la_language].string_char_type != NULL)
1291 return ld->arch_info[la->la_language].string_char_type;
1293 return (*la->string_char_type);
1297 language_lookup_primitive_type_by_name (const struct language_defn *la,
1298 struct gdbarch *gdbarch,
1301 struct language_gdbarch *ld = gdbarch_data (gdbarch,
1302 language_gdbarch_data);
1303 if (ld->arch_info[la->la_language].primitive_type_vector != NULL)
1305 struct type *const *p;
1306 for (p = ld->arch_info[la->la_language].primitive_type_vector;
1310 if (strcmp (TYPE_NAME (*p), name) == 0)
1316 struct type **const *p;
1317 for (p = current_language->la_builtin_type_vector; *p != NULL; p++)
1319 if (strcmp (TYPE_NAME (**p), name) == 0)
1326 /* Initialize the language routines */
1329 _initialize_language (void)
1331 struct cmd_list_element *set, *show;
1333 language_gdbarch_data
1334 = gdbarch_data_register_post_init (language_gdbarch_post_init);
1336 /* GDB commands for language specific stuff */
1338 /* FIXME: cagney/2005-02-20: This should be implemented using an
1340 add_setshow_string_noescape_cmd ("language", class_support, &language, _("\
1341 Set the current source language."), _("\
1342 Show the current source language."), NULL,
1343 set_language_command,
1344 show_language_command,
1345 &setlist, &showlist);
1347 add_prefix_cmd ("check", no_class, set_check,
1348 _("Set the status of the type/range checker."),
1349 &setchecklist, "set check ", 0, &setlist);
1350 add_alias_cmd ("c", "check", no_class, 1, &setlist);
1351 add_alias_cmd ("ch", "check", no_class, 1, &setlist);
1353 add_prefix_cmd ("check", no_class, show_check,
1354 _("Show the status of the type/range checker."),
1355 &showchecklist, "show check ", 0, &showlist);
1356 add_alias_cmd ("c", "check", no_class, 1, &showlist);
1357 add_alias_cmd ("ch", "check", no_class, 1, &showlist);
1359 /* FIXME: cagney/2005-02-20: This should be implemented using an
1361 add_setshow_string_noescape_cmd ("type", class_support, &type, _("\
1362 Set type checking. (on/warn/off/auto)"), _("\
1363 Show type checking. (on/warn/off/auto)"), NULL,
1366 &setchecklist, &showchecklist);
1368 /* FIXME: cagney/2005-02-20: This should be implemented using an
1370 add_setshow_string_noescape_cmd ("range", class_support, &range, _("\
1371 Set range checking. (on/warn/off/auto)"), _("\
1372 Show range checking. (on/warn/off/auto)"), NULL,
1375 &setchecklist, &showchecklist);
1377 /* FIXME: cagney/2005-02-20: This should be implemented using an
1379 add_setshow_string_noescape_cmd ("case-sensitive", class_support,
1380 &case_sensitive, _("\
1381 Set case sensitivity in name search. (on/off/auto)"), _("\
1382 Show case sensitivity in name search. (on/off/auto)"), _("\
1383 For Fortran the default is off; for other languages the default is on."),
1386 &setlist, &showlist);
1388 add_language (&unknown_language_defn);
1389 add_language (&local_language_defn);
1390 add_language (&auto_language_defn);
1392 language = savestring ("auto", strlen ("auto"));
1393 type = savestring ("auto", strlen ("auto"));
1394 range = savestring ("auto", strlen ("auto"));
1395 case_sensitive = savestring ("auto",strlen ("auto"));
1397 /* Have the above take effect */
1398 set_language (language_auto);