1 /* Multiple source language support for GDB.
3 Copyright (C) 1991-2019 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"
50 static int unk_lang_parser (struct parser_state *);
52 static void set_range_case (void);
54 static void unk_lang_emit_char (int c, struct type *type,
55 struct ui_file *stream, int quoter);
57 static void unk_lang_printchar (int c, struct type *type,
58 struct ui_file *stream);
60 static void unk_lang_value_print (struct value *, struct ui_file *,
61 const struct value_print_options *);
63 static CORE_ADDR unk_lang_trampoline (struct frame_info *, CORE_ADDR pc);
65 /* Forward declaration */
66 extern const struct language_defn unknown_language_defn;
68 /* The current (default at startup) state of type and range checking.
69 (If the modes are set to "auto", though, these are changed based
70 on the default language at startup, and then again based on the
71 language of the first source file. */
73 enum range_mode range_mode = range_mode_auto;
74 enum range_check range_check = range_check_off;
75 enum case_mode case_mode = case_mode_auto;
76 enum case_sensitivity case_sensitivity = case_sensitive_on;
78 /* The current language and language_mode (see language.h). */
80 const struct language_defn *current_language = &unknown_language_defn;
81 enum language_mode language_mode = language_mode_auto;
83 /* The language that the user expects to be typing in (the language
84 of main(), or the last language we notified them about, or C). */
86 const struct language_defn *expected_language;
88 /* The list of supported languages. Keep this in the same order as
89 the 'enum language' values. */
91 static const struct language_defn *languages[] = {
92 &unknown_language_defn,
102 &pascal_language_defn,
103 &opencl_language_defn,
105 &minimal_language_defn,
109 /* The current values of the "set language/range/case-sensitive" enum
111 static const char *language;
112 static const char *range;
113 static const char *case_sensitive;
115 /* Warning issued when current_language and the language of the current
116 frame do not match. */
117 char lang_frame_mismatch_warn[] =
118 "Warning: the current language does not match this frame.";
120 /* This page contains the functions corresponding to GDB commands
121 and their helpers. */
123 /* Show command. Display a warning if the language set
124 does not match the frame. */
126 show_language_command (struct ui_file *file, int from_tty,
127 struct cmd_list_element *c, const char *value)
129 enum language flang; /* The language of the frame. */
131 if (language_mode == language_mode_auto)
132 fprintf_filtered (gdb_stdout,
133 _("The current source language is "
134 "\"auto; currently %s\".\n"),
135 current_language->la_name);
137 fprintf_filtered (gdb_stdout,
138 _("The current source language is \"%s\".\n"),
139 current_language->la_name);
141 if (has_stack_frames ())
143 struct frame_info *frame;
145 frame = get_selected_frame (NULL);
146 flang = get_frame_language (frame);
147 if (flang != language_unknown
148 && language_mode == language_mode_manual
149 && current_language->la_language != flang)
150 printf_filtered ("%s\n", lang_frame_mismatch_warn);
154 /* Set command. Change the current working language. */
156 set_language_command (const char *ignore,
157 int from_tty, struct cmd_list_element *c)
159 enum language flang = language_unknown;
161 /* "local" is a synonym of "auto". */
162 if (strcmp (language, "local") == 0)
165 /* Search the list of languages for a match. */
166 for (const auto &lang : languages)
168 if (strcmp (lang->la_name, language) == 0)
170 /* Found it! Go into manual mode, and use this language. */
171 if (lang->la_language == language_auto)
173 /* Enter auto mode. Set to the current frame's language, if
174 known, or fallback to the initial language. */
175 language_mode = language_mode_auto;
178 struct frame_info *frame;
180 frame = get_selected_frame (NULL);
181 flang = get_frame_language (frame);
183 catch (const gdb_exception_error &ex)
185 flang = language_unknown;
188 if (flang != language_unknown)
189 set_language (flang);
191 set_initial_language ();
192 expected_language = current_language;
197 /* Enter manual mode. Set the specified language. */
198 language_mode = language_mode_manual;
199 current_language = lang;
201 expected_language = current_language;
207 internal_error (__FILE__, __LINE__,
208 "Couldn't find language `%s' in known languages list.",
212 /* Show command. Display a warning if the range setting does
213 not match the current language. */
215 show_range_command (struct ui_file *file, int from_tty,
216 struct cmd_list_element *c, const char *value)
218 if (range_mode == range_mode_auto)
227 case range_check_off:
230 case range_check_warn:
234 internal_error (__FILE__, __LINE__,
235 "Unrecognized range check setting.");
238 fprintf_filtered (gdb_stdout,
239 _("Range checking is \"auto; currently %s\".\n"),
243 fprintf_filtered (gdb_stdout, _("Range checking is \"%s\".\n"),
246 if (range_check != current_language->la_range_check)
247 warning (_("the current range check setting "
248 "does not match the language.\n"));
251 /* Set command. Change the setting for range checking. */
253 set_range_command (const char *ignore,
254 int from_tty, struct cmd_list_element *c)
256 if (strcmp (range, "on") == 0)
258 range_check = range_check_on;
259 range_mode = range_mode_manual;
261 else if (strcmp (range, "warn") == 0)
263 range_check = range_check_warn;
264 range_mode = range_mode_manual;
266 else if (strcmp (range, "off") == 0)
268 range_check = range_check_off;
269 range_mode = range_mode_manual;
271 else if (strcmp (range, "auto") == 0)
273 range_mode = range_mode_auto;
279 internal_error (__FILE__, __LINE__,
280 _("Unrecognized range check setting: \"%s\""), range);
282 if (range_check != current_language->la_range_check)
283 warning (_("the current range check setting "
284 "does not match the language.\n"));
287 /* Show command. Display a warning if the case sensitivity setting does
288 not match the current language. */
290 show_case_command (struct ui_file *file, int from_tty,
291 struct cmd_list_element *c, const char *value)
293 if (case_mode == case_mode_auto)
295 const char *tmp = NULL;
297 switch (case_sensitivity)
299 case case_sensitive_on:
302 case case_sensitive_off:
306 internal_error (__FILE__, __LINE__,
307 "Unrecognized case-sensitive setting.");
310 fprintf_filtered (gdb_stdout,
311 _("Case sensitivity in "
312 "name search is \"auto; currently %s\".\n"),
316 fprintf_filtered (gdb_stdout,
317 _("Case sensitivity in name search is \"%s\".\n"),
320 if (case_sensitivity != current_language->la_case_sensitivity)
321 warning (_("the current case sensitivity setting does not match "
325 /* Set command. Change the setting for case sensitivity. */
328 set_case_command (const char *ignore, int from_tty, struct cmd_list_element *c)
330 if (strcmp (case_sensitive, "on") == 0)
332 case_sensitivity = case_sensitive_on;
333 case_mode = case_mode_manual;
335 else if (strcmp (case_sensitive, "off") == 0)
337 case_sensitivity = case_sensitive_off;
338 case_mode = case_mode_manual;
340 else if (strcmp (case_sensitive, "auto") == 0)
342 case_mode = case_mode_auto;
348 internal_error (__FILE__, __LINE__,
349 "Unrecognized case-sensitive setting: \"%s\"",
353 if (case_sensitivity != current_language->la_case_sensitivity)
354 warning (_("the current case sensitivity setting does not match "
358 /* Set the status of range and type checking and case sensitivity based on
359 the current modes and the current language.
360 If SHOW is non-zero, then print out the current language,
361 type and range checking status. */
363 set_range_case (void)
365 if (range_mode == range_mode_auto)
366 range_check = current_language->la_range_check;
368 if (case_mode == case_mode_auto)
369 case_sensitivity = current_language->la_case_sensitivity;
372 /* Set current language to (enum language) LANG. Returns previous
376 set_language (enum language lang)
378 enum language prev_language;
380 prev_language = current_language->la_language;
381 current_language = languages[lang];
383 return prev_language;
387 /* Print out the current language settings: language, range and
388 type checking. If QUIETLY, print only what has changed. */
391 language_info (int quietly)
393 if (quietly && expected_language == current_language)
396 expected_language = current_language;
397 printf_unfiltered (_("Current language: %s\n"), language);
398 show_language_command (NULL, 1, NULL, NULL);
402 printf_unfiltered (_("Range checking: %s\n"), range);
403 show_range_command (NULL, 1, NULL, NULL);
404 printf_unfiltered (_("Case sensitivity: %s\n"), case_sensitive);
405 show_case_command (NULL, 1, NULL, NULL);
410 /* Returns non-zero if the value is a pointer type. */
412 pointer_type (struct type *type)
414 return TYPE_CODE (type) == TYPE_CODE_PTR || TYPE_IS_REFERENCE (type);
418 /* This page contains functions that return info about
419 (struct value) values used in GDB. */
421 /* Returns non-zero if the value VAL represents a true value. */
423 value_true (struct value *val)
425 /* It is possible that we should have some sort of error if a non-boolean
426 value is used in this context. Possibly dependent on some kind of
427 "boolean-checking" option like range checking. But it should probably
428 not depend on the language except insofar as is necessary to identify
429 a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean
430 should be an error, probably). */
431 return !value_logical_not (val);
434 /* This page contains functions for the printing out of
435 error messages that occur during type- and range-
438 /* This is called when a language fails a range-check. The
439 first argument should be a printf()-style format string, and the
440 rest of the arguments should be its arguments. If range_check is
441 range_check_on, an error is printed; if range_check_warn, a warning;
442 otherwise just the message. */
445 range_error (const char *string,...)
449 va_start (args, string);
452 case range_check_warn:
453 vwarning (string, args);
456 verror (string, args);
458 case range_check_off:
459 /* FIXME: cagney/2002-01-30: Should this function print anything
460 when range error is off? */
461 vfprintf_filtered (gdb_stderr, string, args);
462 fprintf_filtered (gdb_stderr, "\n");
465 internal_error (__FILE__, __LINE__, _("bad switch"));
471 /* This page contains miscellaneous functions. */
473 /* Return the language enum for a given language string. */
476 language_enum (const char *str)
478 for (const auto &lang : languages)
479 if (strcmp (lang->la_name, str) == 0)
480 return lang->la_language;
482 if (strcmp (str, "local") == 0)
483 return language_auto;
485 return language_unknown;
488 /* Return the language struct for a given language enum. */
490 const struct language_defn *
491 language_def (enum language lang)
493 return languages[lang];
496 /* Return the language as a string. */
499 language_str (enum language lang)
501 return languages[lang]->la_name;
505 set_check (const char *ignore, int from_tty)
508 "\"set check\" must be followed by the name of a check subcommand.\n");
509 help_list (setchecklist, "set check ", all_commands, gdb_stdout);
513 show_check (const char *ignore, int from_tty)
515 cmd_show_list (showchecklist, from_tty, "");
519 /* Build and install the "set language LANG" command. */
522 add_set_language_command ()
524 static const char **language_names;
526 /* Build the language names array, to be used as enumeration in the
527 "set language" enum command. +1 for "local" and +1 for NULL
529 language_names = new const char *[ARRAY_SIZE (languages) + 2];
531 /* Display "auto", "local" and "unknown" first, and then the rest,
533 const char **language_names_p = language_names;
534 *language_names_p++ = auto_language_defn.la_name;
535 *language_names_p++ = "local";
536 *language_names_p++ = unknown_language_defn.la_name;
537 const char **sort_begin = language_names_p;
538 for (const auto &lang : languages)
540 /* Already handled above. */
541 if (lang->la_language == language_auto
542 || lang->la_language == language_unknown)
544 *language_names_p++ = lang->la_name;
546 *language_names_p = NULL;
547 std::sort (sort_begin, language_names_p, compare_cstrings);
549 /* Add the filename extensions. */
550 for (const auto &lang : languages)
551 if (lang->la_filename_extensions != NULL)
553 for (size_t i = 0; lang->la_filename_extensions[i] != NULL; ++i)
554 add_filename_language (lang->la_filename_extensions[i],
558 /* Build the "help set language" docs. */
561 doc.printf (_("Set the current source language.\n"
562 "The currently understood settings are:\n\nlocal or "
563 "auto Automatic setting based on source file"));
565 for (const auto &lang : languages)
567 /* Already dealt with these above. */
568 if (lang->la_language == language_unknown
569 || lang->la_language == language_auto)
572 /* FIXME: i18n: for now assume that the human-readable name is
573 just a capitalization of the internal name. */
574 /* Note that we add the newline at the front, so we don't wind
575 up with a trailing newline. */
576 doc.printf ("\n%-16s Use the %c%s language",
578 /* Capitalize first letter of language name. */
579 toupper (lang->la_name[0]),
583 add_setshow_enum_cmd ("language", class_support,
587 _("Show the current source language."),
588 NULL, set_language_command,
589 show_language_command,
590 &setlist, &showlist);
593 /* Iterate through all registered languages looking for and calling
594 any non-NULL struct language_defn.skip_trampoline() functions.
595 Return the result from the first that returns non-zero, or 0 if all
598 skip_language_trampoline (struct frame_info *frame, CORE_ADDR pc)
600 for (const auto &lang : languages)
602 if (lang->skip_trampoline != NULL)
604 CORE_ADDR real_pc = lang->skip_trampoline (frame, pc);
614 /* Return demangled language symbol, or NULL.
615 FIXME: Options are only useful for certain languages and ignored
616 by others, so it would be better to remove them here and have a
617 more flexible demangler for the languages that need it.
618 FIXME: Sometimes the demangler is invoked when we don't know the
619 language, so we can't use this everywhere. */
621 language_demangle (const struct language_defn *current_language,
622 const char *mangled, int options)
624 if (current_language != NULL && current_language->la_demangle)
625 return current_language->la_demangle (mangled, options);
629 /* See language.h. */
632 language_sniff_from_mangled_name (const struct language_defn *lang,
633 const char *mangled, char **demangled)
635 gdb_assert (lang != NULL);
637 if (lang->la_sniff_from_mangled_name == NULL)
643 return lang->la_sniff_from_mangled_name (mangled, demangled);
646 /* Return class name from physname or NULL. */
648 language_class_name_from_physname (const struct language_defn *lang,
649 const char *physname)
651 if (lang != NULL && lang->la_class_name_from_physname)
652 return lang->la_class_name_from_physname (physname);
656 /* Return non-zero if TYPE should be passed (and returned) by
657 reference at the language level. */
659 language_pass_by_reference (struct type *type)
661 return current_language->la_pass_by_reference (type);
664 /* Return zero; by default, types are passed by value at the language
665 level. The target ABI may pass or return some structs by reference
666 independent of this. */
668 default_pass_by_reference (struct type *type)
673 /* Return the default string containing the list of characters
674 delimiting words. This is a reasonable default value that
675 most languages should be able to use. */
678 default_word_break_characters (void)
680 return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-";
683 /* Print the index of array elements using the C99 syntax. */
686 default_print_array_index (struct value *index_value, struct ui_file *stream,
687 const struct value_print_options *options)
689 fprintf_filtered (stream, "[");
690 LA_VALUE_PRINT (index_value, stream, options);
691 fprintf_filtered (stream, "] = ");
695 default_get_string (struct value *value,
696 gdb::unique_xmalloc_ptr<gdb_byte> *buffer,
697 int *length, struct type **char_type, const char **charset)
699 error (_("Getting a string is unsupported in this language."));
702 /* See language.h. */
705 default_symbol_name_matcher (const char *symbol_search_name,
706 const lookup_name_info &lookup_name,
707 completion_match_result *comp_match_res)
709 const std::string &name = lookup_name.name ();
710 completion_match_for_lcd *match_for_lcd
711 = (comp_match_res != NULL ? &comp_match_res->match_for_lcd : NULL);
712 strncmp_iw_mode mode = (lookup_name.completion_mode ()
713 ? strncmp_iw_mode::NORMAL
714 : strncmp_iw_mode::MATCH_PARAMS);
716 if (strncmp_iw_with_mode (symbol_search_name, name.c_str (), name.size (),
717 mode, language_minimal, match_for_lcd) == 0)
719 if (comp_match_res != NULL)
720 comp_match_res->set_match (symbol_search_name);
727 /* See language.h. */
730 default_is_string_type_p (struct type *type)
732 type = check_typedef (type);
733 while (TYPE_CODE (type) == TYPE_CODE_REF)
735 type = TYPE_TARGET_TYPE (type);
736 type = check_typedef (type);
738 return (TYPE_CODE (type) == TYPE_CODE_STRING);
741 /* See language.h. */
743 symbol_name_matcher_ftype *
744 get_symbol_name_matcher (const language_defn *lang,
745 const lookup_name_info &lookup_name)
747 /* If currently in Ada mode, and the lookup name is wrapped in
748 '<...>', hijack all symbol name comparisons using the Ada
749 matcher, which handles the verbatim matching. */
750 if (current_language->la_language == language_ada
751 && lookup_name.ada ().verbatim_p ())
752 return current_language->la_get_symbol_name_matcher (lookup_name);
754 if (lang->la_get_symbol_name_matcher != nullptr)
755 return lang->la_get_symbol_name_matcher (lookup_name);
756 return default_symbol_name_matcher;
759 /* Define the language that is no language. */
762 unk_lang_parser (struct parser_state *ps)
768 unk_lang_emit_char (int c, struct type *type, struct ui_file *stream,
771 error (_("internal error - unimplemented "
772 "function unk_lang_emit_char called."));
776 unk_lang_printchar (int c, struct type *type, struct ui_file *stream)
778 error (_("internal error - unimplemented "
779 "function unk_lang_printchar called."));
783 unk_lang_printstr (struct ui_file *stream, struct type *type,
784 const gdb_byte *string, unsigned int length,
785 const char *encoding, int force_ellipses,
786 const struct value_print_options *options)
788 error (_("internal error - unimplemented "
789 "function unk_lang_printstr called."));
793 unk_lang_print_type (struct type *type, const char *varstring,
794 struct ui_file *stream, int show, int level,
795 const struct type_print_options *flags)
797 error (_("internal error - unimplemented "
798 "function unk_lang_print_type called."));
802 unk_lang_val_print (struct type *type,
803 int embedded_offset, CORE_ADDR address,
804 struct ui_file *stream, int recurse,
806 const struct value_print_options *options)
808 error (_("internal error - unimplemented "
809 "function unk_lang_val_print called."));
813 unk_lang_value_print (struct value *val, struct ui_file *stream,
814 const struct value_print_options *options)
816 error (_("internal error - unimplemented "
817 "function unk_lang_value_print called."));
820 static CORE_ADDR unk_lang_trampoline (struct frame_info *frame, CORE_ADDR pc)
825 /* Unknown languages just use the cplus demangler. */
826 static char *unk_lang_demangle (const char *mangled, int options)
828 return gdb_demangle (mangled, options);
831 static char *unk_lang_class_name (const char *mangled)
836 static const struct op_print unk_op_print_tab[] =
838 {NULL, OP_NULL, PREC_NULL, 0}
842 unknown_language_arch_info (struct gdbarch *gdbarch,
843 struct language_arch_info *lai)
845 lai->string_char_type = builtin_type (gdbarch)->builtin_char;
846 lai->bool_type_default = builtin_type (gdbarch)->builtin_int;
847 lai->primitive_type_vector = GDBARCH_OBSTACK_CALLOC (gdbarch, 1,
851 const struct language_defn unknown_language_defn =
861 &exp_descriptor_standard,
864 unk_lang_printchar, /* Print character constant */
867 unk_lang_print_type, /* Print a type using appropriate syntax */
868 default_print_typedef, /* Print a typedef using appropriate syntax */
869 unk_lang_val_print, /* Print a value using appropriate syntax */
870 unk_lang_value_print, /* Print a top-level value */
871 default_read_var_value, /* la_read_var_value */
872 unk_lang_trampoline, /* Language specific skip_trampoline */
873 "this", /* name_of_this */
874 true, /* store_sym_names_in_linkage_form_p */
875 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
876 basic_lookup_transparent_type,/* lookup_transparent_type */
877 unk_lang_demangle, /* Language specific symbol demangler */
879 unk_lang_class_name, /* Language specific
880 class_name_from_physname */
881 unk_op_print_tab, /* expression operators for printing */
882 1, /* c-style arrays */
883 0, /* String lower bound */
884 default_word_break_characters,
885 default_collect_symbol_completion_matches,
886 unknown_language_arch_info, /* la_language_arch_info. */
887 default_print_array_index,
888 default_pass_by_reference,
890 c_watch_location_expression,
891 NULL, /* la_get_symbol_name_matcher */
892 iterate_over_symbols,
893 default_search_name_hash,
897 default_is_string_type_p,
898 "{...}" /* la_struct_too_deep_ellipsis */
901 /* These two structs define fake entries for the "local" and "auto"
903 const struct language_defn auto_language_defn =
913 &exp_descriptor_standard,
916 unk_lang_printchar, /* Print character constant */
919 unk_lang_print_type, /* Print a type using appropriate syntax */
920 default_print_typedef, /* Print a typedef using appropriate syntax */
921 unk_lang_val_print, /* Print a value using appropriate syntax */
922 unk_lang_value_print, /* Print a top-level value */
923 default_read_var_value, /* la_read_var_value */
924 unk_lang_trampoline, /* Language specific skip_trampoline */
925 "this", /* name_of_this */
926 false, /* store_sym_names_in_linkage_form_p */
927 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
928 basic_lookup_transparent_type,/* lookup_transparent_type */
929 unk_lang_demangle, /* Language specific symbol demangler */
931 unk_lang_class_name, /* Language specific
932 class_name_from_physname */
933 unk_op_print_tab, /* expression operators for printing */
934 1, /* c-style arrays */
935 0, /* String lower bound */
936 default_word_break_characters,
937 default_collect_symbol_completion_matches,
938 unknown_language_arch_info, /* la_language_arch_info. */
939 default_print_array_index,
940 default_pass_by_reference,
942 c_watch_location_expression,
943 NULL, /* la_get_symbol_name_matcher */
944 iterate_over_symbols,
945 default_search_name_hash,
949 default_is_string_type_p,
950 "{...}" /* la_struct_too_deep_ellipsis */
954 /* Per-architecture language information. */
956 static struct gdbarch_data *language_gdbarch_data;
958 struct language_gdbarch
960 /* A vector of per-language per-architecture info. Indexed by "enum
962 struct language_arch_info arch_info[nr_languages];
966 language_gdbarch_post_init (struct gdbarch *gdbarch)
968 struct language_gdbarch *l;
970 l = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct language_gdbarch);
971 for (const auto &lang : languages)
972 if (lang != NULL && lang->la_language_arch_info != NULL)
974 lang->la_language_arch_info (gdbarch,
975 l->arch_info + lang->la_language);
982 language_string_char_type (const struct language_defn *la,
983 struct gdbarch *gdbarch)
985 struct language_gdbarch *ld
986 = (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
988 return ld->arch_info[la->la_language].string_char_type;
992 language_bool_type (const struct language_defn *la,
993 struct gdbarch *gdbarch)
995 struct language_gdbarch *ld
996 = (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
998 if (ld->arch_info[la->la_language].bool_type_symbol)
1002 sym = lookup_symbol (ld->arch_info[la->la_language].bool_type_symbol,
1003 NULL, VAR_DOMAIN, NULL).symbol;
1006 struct type *type = SYMBOL_TYPE (sym);
1008 if (type && TYPE_CODE (type) == TYPE_CODE_BOOL)
1013 return ld->arch_info[la->la_language].bool_type_default;
1016 /* Helper function for primitive type lookup. */
1018 static struct type **
1019 language_lookup_primitive_type_1 (const struct language_arch_info *lai,
1024 for (p = lai->primitive_type_vector; (*p) != NULL; p++)
1026 if (strcmp (TYPE_NAME (*p), name) == 0)
1032 /* See language.h. */
1035 language_lookup_primitive_type (const struct language_defn *la,
1036 struct gdbarch *gdbarch,
1039 struct language_gdbarch *ld =
1040 (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
1041 struct type **typep;
1043 typep = language_lookup_primitive_type_1 (&ld->arch_info[la->la_language],
1050 /* Helper function for type lookup as a symbol.
1051 Create the symbol corresponding to type TYPE in language LANG. */
1053 static struct symbol *
1054 language_alloc_type_symbol (enum language lang, struct type *type)
1056 struct symbol *symbol;
1057 struct gdbarch *gdbarch;
1059 gdb_assert (!TYPE_OBJFILE_OWNED (type));
1061 gdbarch = TYPE_OWNER (type).gdbarch;
1062 symbol = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct symbol);
1064 symbol->ginfo.name = TYPE_NAME (type);
1065 symbol->ginfo.language = lang;
1066 symbol->owner.arch = gdbarch;
1067 SYMBOL_OBJFILE_OWNED (symbol) = 0;
1068 SYMBOL_TYPE (symbol) = type;
1069 SYMBOL_DOMAIN (symbol) = VAR_DOMAIN;
1070 SYMBOL_ACLASS_INDEX (symbol) = LOC_TYPEDEF;
1075 /* Initialize the primitive type symbols of language LD.
1076 The primitive type vector must have already been initialized. */
1079 language_init_primitive_type_symbols (struct language_arch_info *lai,
1080 const struct language_defn *la,
1081 struct gdbarch *gdbarch)
1085 gdb_assert (lai->primitive_type_vector != NULL);
1087 for (n = 0; lai->primitive_type_vector[n] != NULL; ++n)
1090 lai->primitive_type_symbols
1091 = GDBARCH_OBSTACK_CALLOC (gdbarch, n + 1, struct symbol *);
1093 for (n = 0; lai->primitive_type_vector[n] != NULL; ++n)
1095 lai->primitive_type_symbols[n]
1096 = language_alloc_type_symbol (la->la_language,
1097 lai->primitive_type_vector[n]);
1100 /* Note: The result of symbol lookup is normally a symbol *and* the block
1101 it was found in. Builtin types don't live in blocks. We *could* give
1102 them one, but there is no current need so to keep things simple symbol
1103 lookup is extended to allow for BLOCK_FOUND to be NULL. */
1106 /* See language.h. */
1109 language_lookup_primitive_type_as_symbol (const struct language_defn *la,
1110 struct gdbarch *gdbarch,
1113 struct language_gdbarch *ld
1114 = (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
1115 struct language_arch_info *lai = &ld->arch_info[la->la_language];
1116 struct type **typep;
1119 if (symbol_lookup_debug)
1121 fprintf_unfiltered (gdb_stdlog,
1122 "language_lookup_primitive_type_as_symbol"
1124 la->la_name, host_address_to_string (gdbarch), name);
1127 typep = language_lookup_primitive_type_1 (lai, name);
1130 if (symbol_lookup_debug)
1131 fprintf_unfiltered (gdb_stdlog, " = NULL\n");
1135 /* The set of symbols is lazily initialized. */
1136 if (lai->primitive_type_symbols == NULL)
1137 language_init_primitive_type_symbols (lai, la, gdbarch);
1139 sym = lai->primitive_type_symbols[typep - lai->primitive_type_vector];
1141 if (symbol_lookup_debug)
1142 fprintf_unfiltered (gdb_stdlog, " = %s\n", host_address_to_string (sym));
1146 /* Initialize the language routines. */
1149 _initialize_language (void)
1151 static const char *const type_or_range_names[]
1152 = { "on", "off", "warn", "auto", NULL };
1154 static const char *const case_sensitive_names[]
1155 = { "on", "off", "auto", NULL };
1157 language_gdbarch_data
1158 = gdbarch_data_register_post_init (language_gdbarch_post_init);
1160 /* GDB commands for language specific stuff. */
1162 add_prefix_cmd ("check", no_class, set_check,
1163 _("Set the status of the type/range checker."),
1164 &setchecklist, "set check ", 0, &setlist);
1165 add_alias_cmd ("c", "check", no_class, 1, &setlist);
1166 add_alias_cmd ("ch", "check", no_class, 1, &setlist);
1168 add_prefix_cmd ("check", no_class, show_check,
1169 _("Show the status of the type/range checker."),
1170 &showchecklist, "show check ", 0, &showlist);
1171 add_alias_cmd ("c", "check", no_class, 1, &showlist);
1172 add_alias_cmd ("ch", "check", no_class, 1, &showlist);
1174 add_setshow_enum_cmd ("range", class_support, type_or_range_names,
1176 _("Set range checking (on/warn/off/auto)."),
1177 _("Show range checking (on/warn/off/auto)."),
1178 NULL, set_range_command,
1180 &setchecklist, &showchecklist);
1182 add_setshow_enum_cmd ("case-sensitive", class_support, case_sensitive_names,
1183 &case_sensitive, _("\
1184 Set case sensitivity in name search (on/off/auto)."), _("\
1185 Show case sensitivity in name search (on/off/auto)."), _("\
1186 For Fortran the default is off; for other languages the default is on."),
1189 &setlist, &showlist);
1191 add_set_language_command ();
1195 case_sensitive = "auto";
1197 /* Have the above take effect. */
1198 set_language (language_auto);