1 /* Multiple source language support for GDB.
3 Copyright (C) 1991-2016 Free Software Foundation, Inc.
5 Contributed by the Department of Computer Science at the State University
6 of New York at Buffalo.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 /* This file contains functions that return things that are specific
24 to languages. Each function should examine current_language if necessary,
25 and return the appropriate result. */
27 /* FIXME: Most of these would be better organized as macros which
28 return data out of a "language-specific" struct pointer that is set
29 whenever the working language changes. That would be a lot faster. */
37 #include "expression.h"
41 #include "parser-defs.h"
44 #include "cp-support.h"
47 extern void _initialize_language (void);
49 static void unk_lang_error (char *);
51 static int unk_lang_parser (struct parser_state *);
53 static void show_check (char *, int);
55 static void set_check (char *, int);
57 static void set_range_case (void);
59 static void unk_lang_emit_char (int c, struct type *type,
60 struct ui_file *stream, int quoter);
62 static void unk_lang_printchar (int c, struct type *type,
63 struct ui_file *stream);
65 static void unk_lang_value_print (struct value *, struct ui_file *,
66 const struct value_print_options *);
68 static CORE_ADDR unk_lang_trampoline (struct frame_info *, CORE_ADDR pc);
70 /* Forward declaration */
71 extern const struct language_defn unknown_language_defn;
73 /* The current (default at startup) state of type and range checking.
74 (If the modes are set to "auto", though, these are changed based
75 on the default language at startup, and then again based on the
76 language of the first source file. */
78 enum range_mode range_mode = range_mode_auto;
79 enum range_check range_check = range_check_off;
80 enum case_mode case_mode = case_mode_auto;
81 enum case_sensitivity case_sensitivity = case_sensitive_on;
83 /* The current language and language_mode (see language.h). */
85 const struct language_defn *current_language = &unknown_language_defn;
86 enum language_mode language_mode = language_mode_auto;
88 /* The language that the user expects to be typing in (the language
89 of main(), or the last language we notified them about, or C). */
91 const struct language_defn *expected_language;
93 /* The list of supported languages. The list itself is malloc'd. */
95 static const struct language_defn **languages;
96 static unsigned languages_size;
97 static unsigned languages_allocsize;
98 #define DEFAULT_ALLOCSIZE 4
100 /* The current values of the "set language/type/range" enum
102 static const char *language;
103 static const char *type;
104 static const char *range;
105 static const char *case_sensitive;
107 /* Warning issued when current_language and the language of the current
108 frame do not match. */
109 char lang_frame_mismatch_warn[] =
110 "Warning: the current language does not match this frame.";
112 /* This page contains the functions corresponding to GDB commands
113 and their helpers. */
115 /* Show command. Display a warning if the language set
116 does not match the frame. */
118 show_language_command (struct ui_file *file, int from_tty,
119 struct cmd_list_element *c, const char *value)
121 enum language flang; /* The language of the frame. */
123 if (language_mode == language_mode_auto)
124 fprintf_filtered (gdb_stdout,
125 _("The current source language is "
126 "\"auto; currently %s\".\n"),
127 current_language->la_name);
129 fprintf_filtered (gdb_stdout,
130 _("The current source language is \"%s\".\n"),
131 current_language->la_name);
133 if (has_stack_frames ())
135 struct frame_info *frame;
137 frame = get_selected_frame (NULL);
138 flang = get_frame_language (frame);
139 if (flang != language_unknown
140 && language_mode == language_mode_manual
141 && current_language->la_language != flang)
142 printf_filtered ("%s\n", lang_frame_mismatch_warn);
146 /* Set command. Change the current working language. */
148 set_language_command (char *ignore, int from_tty, struct cmd_list_element *c)
151 enum language flang = language_unknown;
153 /* Search the list of languages for a match. */
154 for (i = 0; i < languages_size; i++)
156 if (strcmp (languages[i]->la_name, language) == 0)
158 /* Found it! Go into manual mode, and use this language. */
159 if (languages[i]->la_language == language_auto)
161 /* Enter auto mode. Set to the current frame's language, if
162 known, or fallback to the initial language. */
163 language_mode = language_mode_auto;
166 struct frame_info *frame;
168 frame = get_selected_frame (NULL);
169 flang = get_frame_language (frame);
171 CATCH (ex, RETURN_MASK_ERROR)
173 flang = language_unknown;
177 if (flang != language_unknown)
178 set_language (flang);
180 set_initial_language ();
181 expected_language = current_language;
186 /* Enter manual mode. Set the specified language. */
187 language_mode = language_mode_manual;
188 current_language = languages[i];
190 expected_language = current_language;
196 internal_error (__FILE__, __LINE__,
197 "Couldn't find language `%s' in known languages list.",
201 /* Show command. Display a warning if the range setting does
202 not match the current language. */
204 show_range_command (struct ui_file *file, int from_tty,
205 struct cmd_list_element *c, const char *value)
207 if (range_mode == range_mode_auto)
216 case range_check_off:
219 case range_check_warn:
223 internal_error (__FILE__, __LINE__,
224 "Unrecognized range check setting.");
227 fprintf_filtered (gdb_stdout,
228 _("Range checking is \"auto; currently %s\".\n"),
232 fprintf_filtered (gdb_stdout, _("Range checking is \"%s\".\n"),
235 if (range_check != current_language->la_range_check)
236 warning (_("the current range check setting "
237 "does not match the language.\n"));
240 /* Set command. Change the setting for range checking. */
242 set_range_command (char *ignore, int from_tty, struct cmd_list_element *c)
244 if (strcmp (range, "on") == 0)
246 range_check = range_check_on;
247 range_mode = range_mode_manual;
249 else if (strcmp (range, "warn") == 0)
251 range_check = range_check_warn;
252 range_mode = range_mode_manual;
254 else if (strcmp (range, "off") == 0)
256 range_check = range_check_off;
257 range_mode = range_mode_manual;
259 else if (strcmp (range, "auto") == 0)
261 range_mode = range_mode_auto;
267 internal_error (__FILE__, __LINE__,
268 _("Unrecognized range check setting: \"%s\""), range);
270 if (range_check != current_language->la_range_check)
271 warning (_("the current range check setting "
272 "does not match the language.\n"));
275 /* Show command. Display a warning if the case sensitivity setting does
276 not match the current language. */
278 show_case_command (struct ui_file *file, int from_tty,
279 struct cmd_list_element *c, const char *value)
281 if (case_mode == case_mode_auto)
285 switch (case_sensitivity)
287 case case_sensitive_on:
290 case case_sensitive_off:
294 internal_error (__FILE__, __LINE__,
295 "Unrecognized case-sensitive setting.");
298 fprintf_filtered (gdb_stdout,
299 _("Case sensitivity in "
300 "name search is \"auto; currently %s\".\n"),
304 fprintf_filtered (gdb_stdout,
305 _("Case sensitivity in name search is \"%s\".\n"),
308 if (case_sensitivity != current_language->la_case_sensitivity)
309 warning (_("the current case sensitivity setting does not match "
313 /* Set command. Change the setting for case sensitivity. */
316 set_case_command (char *ignore, int from_tty, struct cmd_list_element *c)
318 if (strcmp (case_sensitive, "on") == 0)
320 case_sensitivity = case_sensitive_on;
321 case_mode = case_mode_manual;
323 else if (strcmp (case_sensitive, "off") == 0)
325 case_sensitivity = case_sensitive_off;
326 case_mode = case_mode_manual;
328 else if (strcmp (case_sensitive, "auto") == 0)
330 case_mode = case_mode_auto;
336 internal_error (__FILE__, __LINE__,
337 "Unrecognized case-sensitive setting: \"%s\"",
341 if (case_sensitivity != current_language->la_case_sensitivity)
342 warning (_("the current case sensitivity setting does not match "
346 /* Set the status of range and type checking and case sensitivity based on
347 the current modes and the current language.
348 If SHOW is non-zero, then print out the current language,
349 type and range checking status. */
351 set_range_case (void)
353 if (range_mode == range_mode_auto)
354 range_check = current_language->la_range_check;
356 if (case_mode == case_mode_auto)
357 case_sensitivity = current_language->la_case_sensitivity;
360 /* Set current language to (enum language) LANG. Returns previous
364 set_language (enum language lang)
367 enum language prev_language;
369 prev_language = current_language->la_language;
371 for (i = 0; i < languages_size; i++)
373 if (languages[i]->la_language == lang)
375 current_language = languages[i];
381 return prev_language;
385 /* Print out the current language settings: language, range and
386 type checking. If QUIETLY, print only what has changed. */
389 language_info (int quietly)
391 if (quietly && expected_language == current_language)
394 expected_language = current_language;
395 printf_unfiltered (_("Current language: %s\n"), language);
396 show_language_command (NULL, 1, NULL, NULL);
400 printf_unfiltered (_("Range checking: %s\n"), range);
401 show_range_command (NULL, 1, NULL, NULL);
402 printf_unfiltered (_("Case sensitivity: %s\n"), case_sensitive);
403 show_case_command (NULL, 1, NULL, NULL);
408 /* Returns non-zero if the value is a pointer type. */
410 pointer_type (struct type *type)
412 return TYPE_CODE (type) == TYPE_CODE_PTR ||
413 TYPE_CODE (type) == TYPE_CODE_REF;
417 /* This page contains functions that return info about
418 (struct value) values used in GDB. */
420 /* Returns non-zero if the value VAL represents a true value. */
422 value_true (struct value *val)
424 /* It is possible that we should have some sort of error if a non-boolean
425 value is used in this context. Possibly dependent on some kind of
426 "boolean-checking" option like range checking. But it should probably
427 not depend on the language except insofar as is necessary to identify
428 a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean
429 should be an error, probably). */
430 return !value_logical_not (val);
433 /* This page contains functions for the printing out of
434 error messages that occur during type- and range-
437 /* This is called when a language fails a range-check. The
438 first argument should be a printf()-style format string, and the
439 rest of the arguments should be its arguments. If range_check is
440 range_check_on, an error is printed; if range_check_warn, a warning;
441 otherwise just the message. */
444 range_error (const char *string,...)
448 va_start (args, string);
451 case range_check_warn:
452 vwarning (string, args);
455 verror (string, args);
457 case range_check_off:
458 /* FIXME: cagney/2002-01-30: Should this function print anything
459 when range error is off? */
460 vfprintf_filtered (gdb_stderr, string, args);
461 fprintf_filtered (gdb_stderr, "\n");
464 internal_error (__FILE__, __LINE__, _("bad switch"));
470 /* This page contains miscellaneous functions. */
472 /* Return the language enum for a given language string. */
475 language_enum (char *str)
479 for (i = 0; i < languages_size; i++)
480 if (strcmp (languages[i]->la_name, str) == 0)
481 return languages[i]->la_language;
483 return language_unknown;
486 /* Return the language struct for a given language enum. */
488 const struct language_defn *
489 language_def (enum language lang)
493 for (i = 0; i < languages_size; i++)
495 if (languages[i]->la_language == lang)
503 /* Return the language as a string. */
505 language_str (enum language lang)
509 for (i = 0; i < languages_size; i++)
511 if (languages[i]->la_language == lang)
513 return languages[i]->la_name;
520 set_check (char *ignore, int from_tty)
523 "\"set check\" must be followed by the name of a check subcommand.\n");
524 help_list (setchecklist, "set check ", all_commands, gdb_stdout);
528 show_check (char *ignore, int from_tty)
530 cmd_show_list (showchecklist, from_tty, "");
533 /* Add a language to the set of known languages. */
536 add_language (const struct language_defn *lang)
538 /* For the "set language" command. */
539 static const char **language_names = NULL;
540 /* For the "help set language" command. */
541 char *language_set_doc = NULL;
544 struct ui_file *tmp_stream;
546 if (lang->la_magic != LANG_MAGIC)
548 fprintf_unfiltered (gdb_stderr,
549 "Magic number of %s language struct wrong\n",
551 internal_error (__FILE__, __LINE__,
552 _("failed internal consistency check"));
557 languages_allocsize = DEFAULT_ALLOCSIZE;
558 languages = XNEWVEC (const struct language_defn *, languages_allocsize);
560 if (languages_size >= languages_allocsize)
562 languages_allocsize *= 2;
563 languages = (const struct language_defn **) xrealloc ((char *) languages,
564 languages_allocsize * sizeof (*languages));
566 languages[languages_size++] = lang;
568 /* Build the language names array, to be used as enumeration in the
569 set language" enum command. */
570 language_names = XRESIZEVEC (const char *, language_names,
573 for (i = 0; i < languages_size; ++i)
574 language_names[i] = languages[i]->la_name;
575 language_names[i] = NULL;
577 /* Add the filename extensions. */
578 if (lang->la_filename_extensions != NULL)
582 for (i = 0; lang->la_filename_extensions[i] != NULL; ++i)
583 add_filename_language (lang->la_filename_extensions[i],
587 /* Build the "help set language" docs. */
588 tmp_stream = mem_fileopen ();
590 fprintf_unfiltered (tmp_stream,
591 _("Set the current source language.\n"
592 "The currently understood settings are:\n\nlocal or "
593 "auto Automatic setting based on source file\n"));
595 for (i = 0; i < languages_size; ++i)
597 /* Already dealt with these above. */
598 if (languages[i]->la_language == language_unknown
599 || languages[i]->la_language == language_auto)
602 /* FIXME: i18n: for now assume that the human-readable name
603 is just a capitalization of the internal name. */
604 fprintf_unfiltered (tmp_stream, "%-16s Use the %c%s language\n",
605 languages[i]->la_name,
606 /* Capitalize first letter of language
608 toupper (languages[i]->la_name[0]),
609 languages[i]->la_name + 1);
612 language_set_doc = ui_file_xstrdup (tmp_stream, NULL);
613 ui_file_delete (tmp_stream);
615 add_setshow_enum_cmd ("language", class_support,
616 (const char **) language_names,
619 _("Show the current source language."),
620 NULL, set_language_command,
621 show_language_command,
622 &setlist, &showlist);
624 xfree (language_set_doc);
627 /* Iterate through all registered languages looking for and calling
628 any non-NULL struct language_defn.skip_trampoline() functions.
629 Return the result from the first that returns non-zero, or 0 if all
632 skip_language_trampoline (struct frame_info *frame, CORE_ADDR pc)
636 for (i = 0; i < languages_size; i++)
638 if (languages[i]->skip_trampoline)
640 CORE_ADDR real_pc = (languages[i]->skip_trampoline) (frame, pc);
650 /* Return demangled language symbol, or NULL.
651 FIXME: Options are only useful for certain languages and ignored
652 by others, so it would be better to remove them here and have a
653 more flexible demangler for the languages that need it.
654 FIXME: Sometimes the demangler is invoked when we don't know the
655 language, so we can't use this everywhere. */
657 language_demangle (const struct language_defn *current_language,
658 const char *mangled, int options)
660 if (current_language != NULL && current_language->la_demangle)
661 return current_language->la_demangle (mangled, options);
665 /* See langauge.h. */
668 language_sniff_from_mangled_name (const struct language_defn *lang,
669 const char *mangled, char **demangled)
671 gdb_assert (lang != NULL);
673 if (lang->la_sniff_from_mangled_name == NULL)
679 return lang->la_sniff_from_mangled_name (mangled, demangled);
682 /* Return class name from physname or NULL. */
684 language_class_name_from_physname (const struct language_defn *lang,
685 const char *physname)
687 if (lang != NULL && lang->la_class_name_from_physname)
688 return lang->la_class_name_from_physname (physname);
692 /* Return non-zero if TYPE should be passed (and returned) by
693 reference at the language level. */
695 language_pass_by_reference (struct type *type)
697 return current_language->la_pass_by_reference (type);
700 /* Return zero; by default, types are passed by value at the language
701 level. The target ABI may pass or return some structs by reference
702 independent of this. */
704 default_pass_by_reference (struct type *type)
709 /* Return the default string containing the list of characters
710 delimiting words. This is a reasonable default value that
711 most languages should be able to use. */
714 default_word_break_characters (void)
716 return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-";
719 /* Print the index of array elements using the C99 syntax. */
722 default_print_array_index (struct value *index_value, struct ui_file *stream,
723 const struct value_print_options *options)
725 fprintf_filtered (stream, "[");
726 LA_VALUE_PRINT (index_value, stream, options);
727 fprintf_filtered (stream, "] = ");
731 default_get_string (struct value *value, gdb_byte **buffer, int *length,
732 struct type **char_type, const char **charset)
734 error (_("Getting a string is unsupported in this language."));
737 /* Define the language that is no language. */
740 unk_lang_parser (struct parser_state *ps)
746 unk_lang_error (char *msg)
748 error (_("Attempted to parse an expression with unknown language"));
752 unk_lang_emit_char (int c, struct type *type, struct ui_file *stream,
755 error (_("internal error - unimplemented "
756 "function unk_lang_emit_char called."));
760 unk_lang_printchar (int c, struct type *type, struct ui_file *stream)
762 error (_("internal error - unimplemented "
763 "function unk_lang_printchar called."));
767 unk_lang_printstr (struct ui_file *stream, struct type *type,
768 const gdb_byte *string, unsigned int length,
769 const char *encoding, int force_ellipses,
770 const struct value_print_options *options)
772 error (_("internal error - unimplemented "
773 "function unk_lang_printstr called."));
777 unk_lang_print_type (struct type *type, const char *varstring,
778 struct ui_file *stream, int show, int level,
779 const struct type_print_options *flags)
781 error (_("internal error - unimplemented "
782 "function unk_lang_print_type called."));
786 unk_lang_val_print (struct type *type, const gdb_byte *valaddr,
787 int embedded_offset, CORE_ADDR address,
788 struct ui_file *stream, int recurse,
789 const struct value *val,
790 const struct value_print_options *options)
792 error (_("internal error - unimplemented "
793 "function unk_lang_val_print called."));
797 unk_lang_value_print (struct value *val, struct ui_file *stream,
798 const struct value_print_options *options)
800 error (_("internal error - unimplemented "
801 "function unk_lang_value_print called."));
804 static CORE_ADDR unk_lang_trampoline (struct frame_info *frame, CORE_ADDR pc)
809 /* Unknown languages just use the cplus demangler. */
810 static char *unk_lang_demangle (const char *mangled, int options)
812 return gdb_demangle (mangled, options);
815 static char *unk_lang_class_name (const char *mangled)
820 static const struct op_print unk_op_print_tab[] =
822 {NULL, OP_NULL, PREC_NULL, 0}
826 unknown_language_arch_info (struct gdbarch *gdbarch,
827 struct language_arch_info *lai)
829 lai->string_char_type = builtin_type (gdbarch)->builtin_char;
830 lai->bool_type_default = builtin_type (gdbarch)->builtin_int;
831 lai->primitive_type_vector = GDBARCH_OBSTACK_CALLOC (gdbarch, 1,
835 const struct language_defn unknown_language_defn =
845 &exp_descriptor_standard,
849 unk_lang_printchar, /* Print character constant */
852 unk_lang_print_type, /* Print a type using appropriate syntax */
853 default_print_typedef, /* Print a typedef using appropriate syntax */
854 unk_lang_val_print, /* Print a value using appropriate syntax */
855 unk_lang_value_print, /* Print a top-level value */
856 default_read_var_value, /* la_read_var_value */
857 unk_lang_trampoline, /* Language specific skip_trampoline */
858 "this", /* name_of_this */
859 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
860 basic_lookup_transparent_type,/* lookup_transparent_type */
861 unk_lang_demangle, /* Language specific symbol demangler */
863 unk_lang_class_name, /* Language specific
864 class_name_from_physname */
865 unk_op_print_tab, /* expression operators for printing */
866 1, /* c-style arrays */
867 0, /* String lower bound */
868 default_word_break_characters,
869 default_make_symbol_completion_list,
870 unknown_language_arch_info, /* la_language_arch_info. */
871 default_print_array_index,
872 default_pass_by_reference,
874 NULL, /* la_get_symbol_name_cmp */
875 iterate_over_symbols,
882 /* These two structs define fake entries for the "local" and "auto"
884 const struct language_defn auto_language_defn =
894 &exp_descriptor_standard,
898 unk_lang_printchar, /* Print character constant */
901 unk_lang_print_type, /* Print a type using appropriate syntax */
902 default_print_typedef, /* Print a typedef using appropriate syntax */
903 unk_lang_val_print, /* Print a value using appropriate syntax */
904 unk_lang_value_print, /* Print a top-level value */
905 default_read_var_value, /* la_read_var_value */
906 unk_lang_trampoline, /* Language specific skip_trampoline */
907 "this", /* name_of_this */
908 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
909 basic_lookup_transparent_type,/* lookup_transparent_type */
910 unk_lang_demangle, /* Language specific symbol demangler */
912 unk_lang_class_name, /* Language specific
913 class_name_from_physname */
914 unk_op_print_tab, /* expression operators for printing */
915 1, /* c-style arrays */
916 0, /* String lower bound */
917 default_word_break_characters,
918 default_make_symbol_completion_list,
919 unknown_language_arch_info, /* la_language_arch_info. */
920 default_print_array_index,
921 default_pass_by_reference,
923 NULL, /* la_get_symbol_name_cmp */
924 iterate_over_symbols,
931 const struct language_defn local_language_defn =
941 &exp_descriptor_standard,
945 unk_lang_printchar, /* Print character constant */
948 unk_lang_print_type, /* Print a type using appropriate syntax */
949 default_print_typedef, /* Print a typedef using appropriate syntax */
950 unk_lang_val_print, /* Print a value using appropriate syntax */
951 unk_lang_value_print, /* Print a top-level value */
952 default_read_var_value, /* la_read_var_value */
953 unk_lang_trampoline, /* Language specific skip_trampoline */
954 "this", /* name_of_this */
955 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
956 basic_lookup_transparent_type,/* lookup_transparent_type */
957 unk_lang_demangle, /* Language specific symbol demangler */
959 unk_lang_class_name, /* Language specific
960 class_name_from_physname */
961 unk_op_print_tab, /* expression operators for printing */
962 1, /* c-style arrays */
963 0, /* String lower bound */
964 default_word_break_characters,
965 default_make_symbol_completion_list,
966 unknown_language_arch_info, /* la_language_arch_info. */
967 default_print_array_index,
968 default_pass_by_reference,
970 NULL, /* la_get_symbol_name_cmp */
971 iterate_over_symbols,
978 /* Per-architecture language information. */
980 static struct gdbarch_data *language_gdbarch_data;
982 struct language_gdbarch
984 /* A vector of per-language per-architecture info. Indexed by "enum
986 struct language_arch_info arch_info[nr_languages];
990 language_gdbarch_post_init (struct gdbarch *gdbarch)
992 struct language_gdbarch *l;
995 l = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct language_gdbarch);
996 for (i = 0; i < languages_size; i++)
998 if (languages[i] != NULL
999 && languages[i]->la_language_arch_info != NULL)
1000 languages[i]->la_language_arch_info
1001 (gdbarch, l->arch_info + languages[i]->la_language);
1007 language_string_char_type (const struct language_defn *la,
1008 struct gdbarch *gdbarch)
1010 struct language_gdbarch *ld
1011 = (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
1013 return ld->arch_info[la->la_language].string_char_type;
1017 language_bool_type (const struct language_defn *la,
1018 struct gdbarch *gdbarch)
1020 struct language_gdbarch *ld
1021 = (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
1023 if (ld->arch_info[la->la_language].bool_type_symbol)
1027 sym = lookup_symbol (ld->arch_info[la->la_language].bool_type_symbol,
1028 NULL, VAR_DOMAIN, NULL).symbol;
1031 struct type *type = SYMBOL_TYPE (sym);
1033 if (type && TYPE_CODE (type) == TYPE_CODE_BOOL)
1038 return ld->arch_info[la->la_language].bool_type_default;
1041 /* Helper function for primitive type lookup. */
1043 static struct type **
1044 language_lookup_primitive_type_1 (const struct language_arch_info *lai,
1049 for (p = lai->primitive_type_vector; (*p) != NULL; p++)
1051 if (strcmp (TYPE_NAME (*p), name) == 0)
1057 /* See language.h. */
1060 language_lookup_primitive_type (const struct language_defn *la,
1061 struct gdbarch *gdbarch,
1064 struct language_gdbarch *ld =
1065 (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
1066 struct type **typep;
1068 typep = language_lookup_primitive_type_1 (&ld->arch_info[la->la_language],
1075 /* Helper function for type lookup as a symbol.
1076 Create the symbol corresponding to type TYPE in language LANG. */
1078 static struct symbol *
1079 language_alloc_type_symbol (enum language lang, struct type *type)
1081 struct symbol *symbol;
1082 struct gdbarch *gdbarch;
1084 gdb_assert (!TYPE_OBJFILE_OWNED (type));
1086 gdbarch = TYPE_OWNER (type).gdbarch;
1087 symbol = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct symbol);
1089 symbol->ginfo.name = TYPE_NAME (type);
1090 symbol->ginfo.language = lang;
1091 symbol->owner.arch = gdbarch;
1092 SYMBOL_OBJFILE_OWNED (symbol) = 0;
1093 SYMBOL_TYPE (symbol) = type;
1094 SYMBOL_DOMAIN (symbol) = VAR_DOMAIN;
1095 SYMBOL_ACLASS_INDEX (symbol) = LOC_TYPEDEF;
1100 /* Initialize the primitive type symbols of language LD.
1101 The primitive type vector must have already been initialized. */
1104 language_init_primitive_type_symbols (struct language_arch_info *lai,
1105 const struct language_defn *la,
1106 struct gdbarch *gdbarch)
1110 gdb_assert (lai->primitive_type_vector != NULL);
1112 for (n = 0; lai->primitive_type_vector[n] != NULL; ++n)
1115 lai->primitive_type_symbols
1116 = GDBARCH_OBSTACK_CALLOC (gdbarch, n + 1, struct symbol *);
1118 for (n = 0; lai->primitive_type_vector[n] != NULL; ++n)
1120 lai->primitive_type_symbols[n]
1121 = language_alloc_type_symbol (la->la_language,
1122 lai->primitive_type_vector[n]);
1125 /* Note: The result of symbol lookup is normally a symbol *and* the block
1126 it was found in. Builtin types don't live in blocks. We *could* give
1127 them one, but there is no current need so to keep things simple symbol
1128 lookup is extended to allow for BLOCK_FOUND to be NULL. */
1131 /* See language.h. */
1134 language_lookup_primitive_type_as_symbol (const struct language_defn *la,
1135 struct gdbarch *gdbarch,
1138 struct language_gdbarch *ld
1139 = (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
1140 struct language_arch_info *lai = &ld->arch_info[la->la_language];
1141 struct type **typep;
1144 if (symbol_lookup_debug)
1146 fprintf_unfiltered (gdb_stdlog,
1147 "language_lookup_primitive_type_as_symbol"
1149 la->la_name, host_address_to_string (gdbarch), name);
1152 typep = language_lookup_primitive_type_1 (lai, name);
1155 if (symbol_lookup_debug)
1156 fprintf_unfiltered (gdb_stdlog, " = NULL\n");
1160 /* The set of symbols is lazily initialized. */
1161 if (lai->primitive_type_symbols == NULL)
1162 language_init_primitive_type_symbols (lai, la, gdbarch);
1164 sym = lai->primitive_type_symbols[typep - lai->primitive_type_vector];
1166 if (symbol_lookup_debug)
1167 fprintf_unfiltered (gdb_stdlog, " = %s\n", host_address_to_string (sym));
1171 /* Initialize the language routines. */
1174 _initialize_language (void)
1176 static const char *const type_or_range_names[]
1177 = { "on", "off", "warn", "auto", NULL };
1179 static const char *const case_sensitive_names[]
1180 = { "on", "off", "auto", NULL };
1182 language_gdbarch_data
1183 = gdbarch_data_register_post_init (language_gdbarch_post_init);
1185 /* GDB commands for language specific stuff. */
1187 add_prefix_cmd ("check", no_class, set_check,
1188 _("Set the status of the type/range checker."),
1189 &setchecklist, "set check ", 0, &setlist);
1190 add_alias_cmd ("c", "check", no_class, 1, &setlist);
1191 add_alias_cmd ("ch", "check", no_class, 1, &setlist);
1193 add_prefix_cmd ("check", no_class, show_check,
1194 _("Show the status of the type/range checker."),
1195 &showchecklist, "show check ", 0, &showlist);
1196 add_alias_cmd ("c", "check", no_class, 1, &showlist);
1197 add_alias_cmd ("ch", "check", no_class, 1, &showlist);
1199 add_setshow_enum_cmd ("range", class_support, type_or_range_names,
1201 _("Set range checking. (on/warn/off/auto)"),
1202 _("Show range checking. (on/warn/off/auto)"),
1203 NULL, set_range_command,
1205 &setchecklist, &showchecklist);
1207 add_setshow_enum_cmd ("case-sensitive", class_support, case_sensitive_names,
1208 &case_sensitive, _("\
1209 Set case sensitivity in name search. (on/off/auto)"), _("\
1210 Show case sensitivity in name search. (on/off/auto)"), _("\
1211 For Fortran the default is off; for other languages the default is on."),
1214 &setlist, &showlist);
1216 add_language (&auto_language_defn);
1217 add_language (&local_language_defn);
1218 add_language (&unknown_language_defn);
1220 language = xstrdup ("auto");
1221 type = xstrdup ("auto");
1222 range = xstrdup ("auto");
1223 case_sensitive = xstrdup ("auto");
1225 /* Have the above take effect. */
1226 set_language (language_auto);