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 show_language_command (char *, int);
53 static void set_language_command (char *, int);
55 static void show_type_command (char *, int);
57 static void set_type_command (char *, int);
59 static void show_range_command (char *, int);
61 static void set_range_command (char *, int);
63 static void show_case_command (char *, int);
65 static void set_case_command (char *, int);
67 static void set_case_str (void);
69 static void set_range_str (void);
71 static void set_type_str (void);
73 static void set_lang_str (void);
75 static void unk_lang_error (char *);
77 static int unk_lang_parser (void);
79 static void show_check (char *, int);
81 static void set_check (char *, int);
83 static void set_type_range_case (void);
85 static void unk_lang_emit_char (int c, struct ui_file *stream, int quoter);
87 static void unk_lang_printchar (int c, struct ui_file *stream);
89 static struct type *unk_lang_create_fundamental_type (struct objfile *, int);
91 static void unk_lang_print_type (struct type *, char *, struct ui_file *,
94 static int unk_lang_value_print (struct value *, struct ui_file *, int, enum val_prettyprint);
96 static CORE_ADDR unk_lang_trampoline (CORE_ADDR pc);
98 /* Forward declaration */
99 extern const struct language_defn unknown_language_defn;
101 /* The current (default at startup) state of type and range checking.
102 (If the modes are set to "auto", though, these are changed based
103 on the default language at startup, and then again based on the
104 language of the first source file. */
106 enum range_mode range_mode = range_mode_auto;
107 enum range_check range_check = range_check_off;
108 enum type_mode type_mode = type_mode_auto;
109 enum type_check type_check = type_check_off;
110 enum case_mode case_mode = case_mode_auto;
111 enum case_sensitivity case_sensitivity = case_sensitive_on;
113 /* The current language and language_mode (see language.h) */
115 const struct language_defn *current_language = &unknown_language_defn;
116 enum language_mode language_mode = language_mode_auto;
118 /* The language that the user expects to be typing in (the language
119 of main(), or the last language we notified them about, or C). */
121 const struct language_defn *expected_language;
123 /* The list of supported languages. The list itself is malloc'd. */
125 static const struct language_defn **languages;
126 static unsigned languages_size;
127 static unsigned languages_allocsize;
128 #define DEFAULT_ALLOCSIZE 4
130 /* The "set language/type/range" commands all put stuff in these
131 buffers. This is to make them work as set/show commands. The
132 user's string is copied here, then the set_* commands look at
133 them and update them to something that looks nice when it is
136 static char *language;
139 static char *case_sensitive;
141 /* Warning issued when current_language and the language of the current
142 frame do not match. */
143 char lang_frame_mismatch_warn[] =
144 "Warning: the current language does not match this frame.";
146 /* This page contains the functions corresponding to GDB commands
147 and their helpers. */
149 /* Show command. Display a warning if the language set
150 does not match the frame. */
152 show_language_command (char *ignore, int from_tty)
154 enum language flang; /* The language of the current frame */
156 flang = get_frame_language ();
157 if (flang != language_unknown &&
158 language_mode == language_mode_manual &&
159 current_language->la_language != flang)
160 printf_filtered ("%s\n", lang_frame_mismatch_warn);
163 /* Set command. Change the current working language. */
165 set_language_command (char *ignore, int from_tty)
171 if (!language || !language[0])
173 printf_unfiltered ("The currently understood settings are:\n\n");
174 printf_unfiltered ("local or auto Automatic setting based on source file\n");
176 for (i = 0; i < languages_size; ++i)
178 /* Already dealt with these above. */
179 if (languages[i]->la_language == language_unknown
180 || languages[i]->la_language == language_auto)
183 /* FIXME for now assume that the human-readable name is just
184 a capitalization of the internal name. */
185 printf_unfiltered ("%-16s Use the %c%s language\n",
186 languages[i]->la_name,
187 /* Capitalize first letter of language
189 toupper (languages[i]->la_name[0]),
190 languages[i]->la_name + 1);
192 /* Restore the silly string. */
193 set_language (current_language->la_language);
197 /* Search the list of languages for a match. */
198 for (i = 0; i < languages_size; i++)
200 if (strcmp (languages[i]->la_name, language) == 0)
202 /* Found it! Go into manual mode, and use this language. */
203 if (languages[i]->la_language == language_auto)
205 /* Enter auto mode. Set to the current frame's language, if known. */
206 language_mode = language_mode_auto;
207 flang = get_frame_language ();
208 if (flang != language_unknown)
209 set_language (flang);
210 expected_language = current_language;
215 /* Enter manual mode. Set the specified language. */
216 language_mode = language_mode_manual;
217 current_language = languages[i];
218 set_type_range_case ();
220 expected_language = current_language;
226 /* Reset the language (esp. the global string "language") to the
228 err_lang = savestring (language, strlen (language));
229 make_cleanup (xfree, err_lang); /* Free it after error */
230 set_language (current_language->la_language);
231 error (_("Unknown language `%s'."), err_lang);
234 /* Show command. Display a warning if the type setting does
235 not match the current language. */
237 show_type_command (char *ignore, int from_tty)
239 if (type_check != current_language->la_type_check)
241 "Warning: the current type check setting does not match the language.\n");
244 /* Set command. Change the setting for type checking. */
246 set_type_command (char *ignore, int from_tty)
248 if (strcmp (type, "on") == 0)
250 type_check = type_check_on;
251 type_mode = type_mode_manual;
253 else if (strcmp (type, "warn") == 0)
255 type_check = type_check_warn;
256 type_mode = type_mode_manual;
258 else if (strcmp (type, "off") == 0)
260 type_check = type_check_off;
261 type_mode = type_mode_manual;
263 else if (strcmp (type, "auto") == 0)
265 type_mode = type_mode_auto;
266 set_type_range_case ();
267 /* Avoid hitting the set_type_str call below. We
268 did it in set_type_range_case. */
273 warning (_("Unrecognized type check setting: \"%s\""), type);
276 show_type_command ((char *) NULL, from_tty);
279 /* Show command. Display a warning if the range setting does
280 not match the current language. */
282 show_range_command (char *ignore, int from_tty)
285 if (range_check != current_language->la_range_check)
287 "Warning: the current range check setting does not match the language.\n");
290 /* Set command. Change the setting for range checking. */
292 set_range_command (char *ignore, int from_tty)
294 if (strcmp (range, "on") == 0)
296 range_check = range_check_on;
297 range_mode = range_mode_manual;
299 else if (strcmp (range, "warn") == 0)
301 range_check = range_check_warn;
302 range_mode = range_mode_manual;
304 else if (strcmp (range, "off") == 0)
306 range_check = range_check_off;
307 range_mode = range_mode_manual;
309 else if (strcmp (range, "auto") == 0)
311 range_mode = range_mode_auto;
312 set_type_range_case ();
313 /* Avoid hitting the set_range_str call below. We
314 did it in set_type_range_case. */
319 warning (_("Unrecognized range check setting: \"%s\""), range);
322 show_range_command ((char *) 0, from_tty);
325 /* Show command. Display a warning if the case sensitivity setting does
326 not match the current language. */
328 show_case_command (char *ignore, int from_tty)
330 if (case_sensitivity != current_language->la_case_sensitivity)
332 "Warning: the current case sensitivity setting does not match the language.\n");
335 /* Set command. Change the setting for case sensitivity. */
337 set_case_command (char *ignore, int from_tty)
339 if (DEPRECATED_STREQ (case_sensitive, "on"))
341 case_sensitivity = case_sensitive_on;
342 case_mode = case_mode_manual;
344 else if (DEPRECATED_STREQ (case_sensitive, "off"))
346 case_sensitivity = case_sensitive_off;
347 case_mode = case_mode_manual;
349 else if (DEPRECATED_STREQ (case_sensitive, "auto"))
351 case_mode = case_mode_auto;
352 set_type_range_case ();
353 /* Avoid hitting the set_case_str call below. We
354 did it in set_type_range_case. */
359 warning (_("Unrecognized case-sensitive setting: \"%s\""), case_sensitive);
362 show_case_command ((char *) NULL, from_tty);
365 /* Set the status of range and type checking and case sensitivity based on
366 the current modes and the current language.
367 If SHOW is non-zero, then print out the current language,
368 type and range checking status. */
370 set_type_range_case (void)
373 if (range_mode == range_mode_auto)
374 range_check = current_language->la_range_check;
376 if (type_mode == type_mode_auto)
377 type_check = current_language->la_type_check;
379 if (case_mode == case_mode_auto)
380 case_sensitivity = current_language->la_case_sensitivity;
387 /* Set current language to (enum language) LANG. Returns previous language. */
390 set_language (enum language lang)
393 enum language prev_language;
395 prev_language = current_language->la_language;
397 for (i = 0; i < languages_size; i++)
399 if (languages[i]->la_language == lang)
401 current_language = languages[i];
402 set_type_range_case ();
408 return prev_language;
411 /* This page contains functions that update the global vars
412 language, type and range. */
420 if (language_mode == language_mode_auto)
421 prefix = "auto; currently ";
423 language = concat (prefix, current_language->la_name, NULL);
429 char *tmp = NULL, *prefix = "";
433 if (type_mode == type_mode_auto)
434 prefix = "auto; currently ";
444 case type_check_warn:
448 error (_("Unrecognized type check setting."));
451 type = concat (prefix, tmp, NULL);
457 char *tmp, *pref = "";
459 if (range_mode == range_mode_auto)
460 pref = "auto; currently ";
467 case range_check_off:
470 case range_check_warn:
474 error (_("Unrecognized range check setting."));
479 range = concat (pref, tmp, NULL);
485 char *tmp = NULL, *prefix = "";
487 if (case_mode==case_mode_auto)
488 prefix = "auto; currently ";
490 switch (case_sensitivity)
492 case case_sensitive_on:
495 case case_sensitive_off:
499 error (_("Unrecognized case-sensitive setting."));
502 xfree (case_sensitive);
503 case_sensitive = concat (prefix, tmp, NULL);
506 /* Print out the current language settings: language, range and
507 type checking. If QUIETLY, print only what has changed. */
510 language_info (int quietly)
512 if (quietly && expected_language == current_language)
515 expected_language = current_language;
516 printf_unfiltered ("Current language: %s\n", language);
517 show_language_command ((char *) 0, 1);
521 printf_unfiltered ("Type checking: %s\n", type);
522 show_type_command ((char *) 0, 1);
523 printf_unfiltered ("Range checking: %s\n", range);
524 show_range_command ((char *) 0, 1);
525 printf_unfiltered ("Case sensitivity: %s\n", case_sensitive);
526 show_case_command ((char *) 0, 1);
530 /* Return the result of a binary operation. */
532 #if 0 /* Currently unused */
535 binop_result_type (struct value *v1, struct value *v2)
538 struct type *t1 = check_typedef (VALUE_TYPE (v1));
539 struct type *t2 = check_typedef (VALUE_TYPE (v2));
541 int l1 = TYPE_LENGTH (t1);
542 int l2 = TYPE_LENGTH (t2);
544 switch (current_language->la_language)
549 if (TYPE_CODE (t1) == TYPE_CODE_FLT)
550 return TYPE_CODE (t2) == TYPE_CODE_FLT && l2 > l1 ?
551 VALUE_TYPE (v2) : VALUE_TYPE (v1);
552 else if (TYPE_CODE (t2) == TYPE_CODE_FLT)
553 return TYPE_CODE (t1) == TYPE_CODE_FLT && l1 > l2 ?
554 VALUE_TYPE (v1) : VALUE_TYPE (v2);
555 else if (TYPE_UNSIGNED (t1) && l1 > l2)
556 return VALUE_TYPE (v1);
557 else if (TYPE_UNSIGNED (t2) && l2 > l1)
558 return VALUE_TYPE (v2);
559 else /* Both are signed. Result is the longer type */
560 return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2);
563 /* If we are doing type-checking, l1 should equal l2, so this is
565 return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2);
568 internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
569 return (struct type *) 0; /* For lint */
574 /* This page contains functions that are used in type/range checking.
575 They all return zero if the type/range check fails.
577 It is hoped that these will make extending GDB to parse different
578 languages a little easier. These are primarily used in eval.c when
579 evaluating expressions and making sure that their types are correct.
580 Instead of having a mess of conjucted/disjuncted expressions in an "if",
581 the ideas of type can be wrapped up in the following functions.
583 Note that some of them are not currently dependent upon which language
584 is currently being parsed. For example, floats are the same in
585 C and Modula-2 (ie. the only floating point type has TYPE_CODE of
586 TYPE_CODE_FLT), while booleans are different. */
588 /* Returns non-zero if its argument is a simple type. This is the same for
589 both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur,
590 and thus will never cause the failure of the test. */
592 simple_type (struct type *type)
594 CHECK_TYPEDEF (type);
595 switch (TYPE_CODE (type))
601 case TYPE_CODE_RANGE:
610 /* Returns non-zero if its argument is of an ordered type.
611 An ordered type is one in which the elements can be tested for the
612 properties of "greater than", "less than", etc, or for which the
613 operations "increment" or "decrement" make sense. */
615 ordered_type (struct type *type)
617 CHECK_TYPEDEF (type);
618 switch (TYPE_CODE (type))
624 case TYPE_CODE_RANGE:
632 /* Returns non-zero if the two types are the same */
634 same_type (struct type *arg1, struct type *arg2)
636 CHECK_TYPEDEF (type);
637 if (structured_type (arg1) ? !structured_type (arg2) : structured_type (arg2))
638 /* One is structured and one isn't */
640 else if (structured_type (arg1) && structured_type (arg2))
642 else if (numeric_type (arg1) && numeric_type (arg2))
643 return (TYPE_CODE (arg2) == TYPE_CODE (arg1)) &&
644 (TYPE_UNSIGNED (arg1) == TYPE_UNSIGNED (arg2))
650 /* Returns non-zero if the type is integral */
652 integral_type (struct type *type)
654 CHECK_TYPEDEF (type);
655 switch (current_language->la_language)
660 return (TYPE_CODE (type) != TYPE_CODE_INT) &&
661 (TYPE_CODE (type) != TYPE_CODE_ENUM) ? 0 : 1;
663 case language_pascal:
664 return TYPE_CODE (type) != TYPE_CODE_INT ? 0 : 1;
666 error (_("Language not supported."));
670 /* Returns non-zero if the value is numeric */
672 numeric_type (struct type *type)
674 CHECK_TYPEDEF (type);
675 switch (TYPE_CODE (type))
686 /* Returns non-zero if the value is a character type */
688 character_type (struct type *type)
690 CHECK_TYPEDEF (type);
691 switch (current_language->la_language)
694 case language_pascal:
695 return TYPE_CODE (type) != TYPE_CODE_CHAR ? 0 : 1;
700 return (TYPE_CODE (type) == TYPE_CODE_INT) &&
701 TYPE_LENGTH (type) == sizeof (char)
708 /* Returns non-zero if the value is a string type */
710 string_type (struct type *type)
712 CHECK_TYPEDEF (type);
713 switch (current_language->la_language)
716 case language_pascal:
717 return TYPE_CODE (type) != TYPE_CODE_STRING ? 0 : 1;
722 /* C does not have distinct string type. */
729 /* Returns non-zero if the value is a boolean type */
731 boolean_type (struct type *type)
733 CHECK_TYPEDEF (type);
734 if (TYPE_CODE (type) == TYPE_CODE_BOOL)
736 switch (current_language->la_language)
741 /* Might be more cleanly handled by having a
742 TYPE_CODE_INT_NOT_BOOL for (the deleted) CHILL and such
743 languages, or a TYPE_CODE_INT_OR_BOOL for C. */
744 if (TYPE_CODE (type) == TYPE_CODE_INT)
752 /* Returns non-zero if the value is a floating-point type */
754 float_type (struct type *type)
756 CHECK_TYPEDEF (type);
757 return TYPE_CODE (type) == TYPE_CODE_FLT;
760 /* Returns non-zero if the value is a pointer type */
762 pointer_type (struct type *type)
764 return TYPE_CODE (type) == TYPE_CODE_PTR ||
765 TYPE_CODE (type) == TYPE_CODE_REF;
768 /* Returns non-zero if the value is a structured type */
770 structured_type (struct type *type)
772 CHECK_TYPEDEF (type);
773 switch (current_language->la_language)
778 return (TYPE_CODE (type) == TYPE_CODE_STRUCT) ||
779 (TYPE_CODE (type) == TYPE_CODE_UNION) ||
780 (TYPE_CODE (type) == TYPE_CODE_ARRAY);
781 case language_pascal:
782 return (TYPE_CODE(type) == TYPE_CODE_STRUCT) ||
783 (TYPE_CODE(type) == TYPE_CODE_UNION) ||
784 (TYPE_CODE(type) == TYPE_CODE_SET) ||
785 (TYPE_CODE(type) == TYPE_CODE_ARRAY);
787 return (TYPE_CODE (type) == TYPE_CODE_STRUCT) ||
788 (TYPE_CODE (type) == TYPE_CODE_SET) ||
789 (TYPE_CODE (type) == TYPE_CODE_ARRAY);
797 lang_bool_type (void)
801 switch (current_language->la_language)
803 case language_fortran:
804 sym = lookup_symbol ("logical", NULL, VAR_DOMAIN, NULL, NULL);
807 type = SYMBOL_TYPE (sym);
808 if (type && TYPE_CODE (type) == TYPE_CODE_BOOL)
811 return builtin_type_f_logical_s2;
813 case language_pascal:
814 if (current_language->la_language==language_cplus)
815 {sym = lookup_symbol ("bool", NULL, VAR_DOMAIN, NULL, NULL);}
817 {sym = lookup_symbol ("boolean", NULL, VAR_DOMAIN, NULL, NULL);}
820 type = SYMBOL_TYPE (sym);
821 if (type && TYPE_CODE (type) == TYPE_CODE_BOOL)
824 return builtin_type_bool;
826 sym = lookup_symbol ("boolean", NULL, VAR_DOMAIN, NULL, NULL);
829 type = SYMBOL_TYPE (sym);
830 if (type && TYPE_CODE (type) == TYPE_CODE_BOOL)
833 return java_boolean_type;
835 return builtin_type_int;
839 /* This page contains functions that return info about
840 (struct value) values used in GDB. */
842 /* Returns non-zero if the value VAL represents a true value. */
844 value_true (struct value *val)
846 /* It is possible that we should have some sort of error if a non-boolean
847 value is used in this context. Possibly dependent on some kind of
848 "boolean-checking" option like range checking. But it should probably
849 not depend on the language except insofar as is necessary to identify
850 a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean
851 should be an error, probably). */
852 return !value_logical_not (val);
855 /* This page contains functions for the printing out of
856 error messages that occur during type- and range-
859 /* These are called when a language fails a type- or range-check. The
860 first argument should be a printf()-style format string, and the
861 rest of the arguments should be its arguments. If
862 [type|range]_check is [type|range]_check_on, an error is printed;
863 if [type|range]_check_warn, a warning; otherwise just the
867 type_error (const char *string,...)
870 va_start (args, string);
874 case type_check_warn:
875 vwarning (string, args);
878 verror (string, args);
881 /* FIXME: cagney/2002-01-30: Should this function print anything
882 when type error is off? */
883 vfprintf_filtered (gdb_stderr, string, args);
884 fprintf_filtered (gdb_stderr, "\n");
887 internal_error (__FILE__, __LINE__, _("bad switch"));
893 range_error (const char *string,...)
896 va_start (args, string);
900 case range_check_warn:
901 vwarning (string, args);
904 verror (string, args);
906 case range_check_off:
907 /* FIXME: cagney/2002-01-30: Should this function print anything
908 when range error is off? */
909 vfprintf_filtered (gdb_stderr, string, args);
910 fprintf_filtered (gdb_stderr, "\n");
913 internal_error (__FILE__, __LINE__, _("bad switch"));
919 /* This page contains miscellaneous functions */
921 /* Return the language enum for a given language string. */
924 language_enum (char *str)
928 for (i = 0; i < languages_size; i++)
929 if (DEPRECATED_STREQ (languages[i]->la_name, str))
930 return languages[i]->la_language;
932 return language_unknown;
935 /* Return the language struct for a given language enum. */
937 const struct language_defn *
938 language_def (enum language lang)
942 for (i = 0; i < languages_size; i++)
944 if (languages[i]->la_language == lang)
952 /* Return the language as a string */
954 language_str (enum language lang)
958 for (i = 0; i < languages_size; i++)
960 if (languages[i]->la_language == lang)
962 return languages[i]->la_name;
969 set_check (char *ignore, int from_tty)
972 "\"set check\" must be followed by the name of a check subcommand.\n");
973 help_list (setchecklist, "set check ", -1, gdb_stdout);
977 show_check (char *ignore, int from_tty)
979 cmd_show_list (showchecklist, from_tty, "");
982 /* Add a language to the set of known languages. */
985 add_language (const struct language_defn *lang)
987 if (lang->la_magic != LANG_MAGIC)
989 fprintf_unfiltered (gdb_stderr, "Magic number of %s language struct wrong\n",
991 internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
996 languages_allocsize = DEFAULT_ALLOCSIZE;
997 languages = (const struct language_defn **) xmalloc
998 (languages_allocsize * sizeof (*languages));
1000 if (languages_size >= languages_allocsize)
1002 languages_allocsize *= 2;
1003 languages = (const struct language_defn **) xrealloc ((char *) languages,
1004 languages_allocsize * sizeof (*languages));
1006 languages[languages_size++] = lang;
1009 /* Iterate through all registered languages looking for and calling
1010 any non-NULL struct language_defn.skip_trampoline() functions.
1011 Return the result from the first that returns non-zero, or 0 if all
1014 skip_language_trampoline (CORE_ADDR pc)
1018 for (i = 0; i < languages_size; i++)
1020 if (languages[i]->skip_trampoline)
1022 CORE_ADDR real_pc = (languages[i]->skip_trampoline) (pc);
1031 /* Return demangled language symbol, or NULL.
1032 FIXME: Options are only useful for certain languages and ignored
1033 by others, so it would be better to remove them here and have a
1034 more flexible demangler for the languages that need it.
1035 FIXME: Sometimes the demangler is invoked when we don't know the
1036 language, so we can't use this everywhere. */
1038 language_demangle (const struct language_defn *current_language,
1039 const char *mangled, int options)
1041 if (current_language != NULL && current_language->la_demangle)
1042 return current_language->la_demangle (mangled, options);
1046 /* Return class name from physname or NULL. */
1048 language_class_name_from_physname (const struct language_defn *current_language,
1049 const char *physname)
1051 if (current_language != NULL && current_language->la_class_name_from_physname)
1052 return current_language->la_class_name_from_physname (physname);
1056 /* Return the default string containing the list of characters
1057 delimiting words. This is a reasonable default value that
1058 most languages should be able to use. */
1061 default_word_break_characters (void)
1063 return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-";
1066 /* Define the language that is no language. */
1069 unk_lang_parser (void)
1075 unk_lang_error (char *msg)
1077 error (_("Attempted to parse an expression with unknown language"));
1081 unk_lang_emit_char (int c, struct ui_file *stream, int quoter)
1083 error (_("internal error - unimplemented function unk_lang_emit_char called."));
1087 unk_lang_printchar (int c, struct ui_file *stream)
1089 error (_("internal error - unimplemented function unk_lang_printchar called."));
1093 unk_lang_printstr (struct ui_file *stream, const bfd_byte *string,
1094 unsigned int length, int width, int force_ellipses)
1096 error (_("internal error - unimplemented function unk_lang_printstr called."));
1099 static struct type *
1100 unk_lang_create_fundamental_type (struct objfile *objfile, int typeid)
1102 error (_("internal error - unimplemented function unk_lang_create_fundamental_type called."));
1106 unk_lang_print_type (struct type *type, char *varstring, struct ui_file *stream,
1107 int show, int level)
1109 error (_("internal error - unimplemented function unk_lang_print_type called."));
1113 unk_lang_val_print (struct type *type, const bfd_byte *valaddr,
1114 int embedded_offset, CORE_ADDR address,
1115 struct ui_file *stream, int format,
1116 int deref_ref, int recurse, enum val_prettyprint pretty)
1118 error (_("internal error - unimplemented function unk_lang_val_print called."));
1122 unk_lang_value_print (struct value *val, struct ui_file *stream, int format,
1123 enum val_prettyprint pretty)
1125 error (_("internal error - unimplemented function unk_lang_value_print called."));
1128 static CORE_ADDR unk_lang_trampoline (CORE_ADDR pc)
1133 /* Unknown languages just use the cplus demangler. */
1134 static char *unk_lang_demangle (const char *mangled, int options)
1136 return cplus_demangle (mangled, options);
1139 static char *unk_lang_class_name (const char *mangled)
1144 static const struct op_print unk_op_print_tab[] =
1146 {NULL, OP_NULL, PREC_NULL, 0}
1150 unknown_language_arch_info (struct gdbarch *gdbarch,
1151 struct language_arch_info *lai)
1153 lai->string_char_type = builtin_type (gdbarch)->builtin_char;
1154 lai->primitive_type_vector = GDBARCH_OBSTACK_CALLOC (gdbarch, 1,
1158 const struct language_defn unknown_language_defn =
1167 &exp_descriptor_standard,
1171 unk_lang_printchar, /* Print character constant */
1174 unk_lang_create_fundamental_type,
1175 unk_lang_print_type, /* Print a type using appropriate syntax */
1176 unk_lang_val_print, /* Print a value using appropriate syntax */
1177 unk_lang_value_print, /* Print a top-level value */
1178 unk_lang_trampoline, /* Language specific skip_trampoline */
1179 value_of_this, /* value_of_this */
1180 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
1181 basic_lookup_transparent_type,/* lookup_transparent_type */
1182 unk_lang_demangle, /* Language specific symbol demangler */
1183 unk_lang_class_name, /* Language specific class_name_from_physname */
1184 unk_op_print_tab, /* expression operators for printing */
1185 1, /* c-style arrays */
1186 0, /* String lower bound */
1188 default_word_break_characters,
1189 unknown_language_arch_info, /* la_language_arch_info. */
1193 /* These two structs define fake entries for the "local" and "auto" options. */
1194 const struct language_defn auto_language_defn =
1203 &exp_descriptor_standard,
1207 unk_lang_printchar, /* Print character constant */
1210 unk_lang_create_fundamental_type,
1211 unk_lang_print_type, /* Print a type using appropriate syntax */
1212 unk_lang_val_print, /* Print a value using appropriate syntax */
1213 unk_lang_value_print, /* Print a top-level value */
1214 unk_lang_trampoline, /* Language specific skip_trampoline */
1215 value_of_this, /* value_of_this */
1216 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
1217 basic_lookup_transparent_type,/* lookup_transparent_type */
1218 unk_lang_demangle, /* Language specific symbol demangler */
1219 unk_lang_class_name, /* Language specific class_name_from_physname */
1220 unk_op_print_tab, /* expression operators for printing */
1221 1, /* c-style arrays */
1222 0, /* String lower bound */
1224 default_word_break_characters,
1225 unknown_language_arch_info, /* la_language_arch_info. */
1229 const struct language_defn local_language_defn =
1238 &exp_descriptor_standard,
1242 unk_lang_printchar, /* Print character constant */
1245 unk_lang_create_fundamental_type,
1246 unk_lang_print_type, /* Print a type using appropriate syntax */
1247 unk_lang_val_print, /* Print a value using appropriate syntax */
1248 unk_lang_value_print, /* Print a top-level value */
1249 unk_lang_trampoline, /* Language specific skip_trampoline */
1250 value_of_this, /* value_of_this */
1251 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
1252 basic_lookup_transparent_type,/* lookup_transparent_type */
1253 unk_lang_demangle, /* Language specific symbol demangler */
1254 unk_lang_class_name, /* Language specific class_name_from_physname */
1255 unk_op_print_tab, /* expression operators for printing */
1256 1, /* c-style arrays */
1257 0, /* String lower bound */
1259 default_word_break_characters,
1260 unknown_language_arch_info, /* la_language_arch_info. */
1264 /* Per-architecture language information. */
1266 static struct gdbarch_data *language_gdbarch_data;
1268 struct language_gdbarch
1270 /* A vector of per-language per-architecture info. Indexed by "enum
1272 struct language_arch_info arch_info[nr_languages];
1276 language_gdbarch_post_init (struct gdbarch *gdbarch)
1278 struct language_gdbarch *l;
1281 l = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct language_gdbarch);
1282 for (i = 0; i < languages_size; i++)
1284 if (languages[i] != NULL
1285 && languages[i]->la_language_arch_info != NULL)
1286 languages[i]->la_language_arch_info
1287 (gdbarch, l->arch_info + languages[i]->la_language);
1293 language_string_char_type (const struct language_defn *la,
1294 struct gdbarch *gdbarch)
1296 struct language_gdbarch *ld = gdbarch_data (gdbarch,
1297 language_gdbarch_data);
1298 if (ld->arch_info[la->la_language].string_char_type != NULL)
1299 return ld->arch_info[la->la_language].string_char_type;
1301 return (*la->string_char_type);
1305 language_lookup_primitive_type_by_name (const struct language_defn *la,
1306 struct gdbarch *gdbarch,
1309 struct language_gdbarch *ld = gdbarch_data (gdbarch,
1310 language_gdbarch_data);
1311 if (ld->arch_info[la->la_language].primitive_type_vector != NULL)
1313 struct type *const *p;
1314 for (p = ld->arch_info[la->la_language].primitive_type_vector;
1318 if (strcmp (TYPE_NAME (*p), name) == 0)
1324 struct type **const *p;
1325 for (p = current_language->la_builtin_type_vector; *p != NULL; p++)
1327 if (strcmp (TYPE_NAME (**p), name) == 0)
1334 /* Initialize the language routines */
1337 _initialize_language (void)
1339 struct cmd_list_element *set, *show;
1341 language_gdbarch_data
1342 = gdbarch_data_register_post_init (language_gdbarch_post_init);
1344 /* GDB commands for language specific stuff */
1346 set = add_set_cmd ("language", class_support, var_string_noescape,
1348 "Set the current source language.",
1350 show = deprecated_add_show_from_set (set, &showlist);
1351 set_cmd_cfunc (set, set_language_command);
1352 set_cmd_cfunc (show, show_language_command);
1354 add_prefix_cmd ("check", no_class, set_check,
1355 "Set the status of the type/range checker.",
1356 &setchecklist, "set check ", 0, &setlist);
1357 add_alias_cmd ("c", "check", no_class, 1, &setlist);
1358 add_alias_cmd ("ch", "check", no_class, 1, &setlist);
1360 add_prefix_cmd ("check", no_class, show_check,
1361 "Show the status of the type/range checker.",
1362 &showchecklist, "show check ", 0, &showlist);
1363 add_alias_cmd ("c", "check", no_class, 1, &showlist);
1364 add_alias_cmd ("ch", "check", no_class, 1, &showlist);
1366 set = add_set_cmd ("type", class_support, var_string_noescape,
1368 "Set type checking. (on/warn/off/auto)",
1370 show = deprecated_add_show_from_set (set, &showchecklist);
1371 set_cmd_cfunc (set, set_type_command);
1372 set_cmd_cfunc (show, show_type_command);
1374 set = add_set_cmd ("range", class_support, var_string_noescape,
1376 "Set range checking. (on/warn/off/auto)",
1378 show = deprecated_add_show_from_set (set, &showchecklist);
1379 set_cmd_cfunc (set, set_range_command);
1380 set_cmd_cfunc (show, show_range_command);
1382 set = add_set_cmd ("case-sensitive", class_support, var_string_noescape,
1383 (char *) &case_sensitive,
1384 "Set case sensitivity in name search. (on/off/auto)\n\
1385 For Fortran the default is off; for other languages the default is on.",
1387 show = deprecated_add_show_from_set (set, &showlist);
1388 set_cmd_cfunc (set, set_case_command);
1389 set_cmd_cfunc (show, show_case_command);
1391 add_language (&unknown_language_defn);
1392 add_language (&local_language_defn);
1393 add_language (&auto_language_defn);
1395 language = savestring ("auto", strlen ("auto"));
1396 type = savestring ("auto", strlen ("auto"));
1397 range = savestring ("auto", strlen ("auto"));
1398 case_sensitive = savestring ("auto",strlen ("auto"));
1400 /* Have the above take effect */
1401 set_language (language_auto);