1 /* Multiple source language support for GDB.
3 Copyright (C) 1991-2020 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 void set_range_case (void);
52 /* The current (default at startup) state of type and range checking.
53 (If the modes are set to "auto", though, these are changed based
54 on the default language at startup, and then again based on the
55 language of the first source file. */
57 enum range_mode range_mode = range_mode_auto;
58 enum range_check range_check = range_check_off;
59 enum case_mode case_mode = case_mode_auto;
60 enum case_sensitivity case_sensitivity = case_sensitive_on;
62 /* The current language and language_mode (see language.h). */
64 const struct language_defn *current_language = nullptr;
65 enum language_mode language_mode = language_mode_auto;
67 /* The language that the user expects to be typing in (the language
68 of main(), or the last language we notified them about, or C). */
70 const struct language_defn *expected_language;
72 /* Define the array containing all languages. */
74 const struct language_defn *language_defn::languages[nr_languages];
76 /* The current values of the "set language/range/case-sensitive" enum
78 static const char *language;
79 static const char *range;
80 static const char *case_sensitive;
83 const char lang_frame_mismatch_warn[] =
84 N_("Warning: the current language does not match this frame.");
86 /* This page contains the functions corresponding to GDB commands
89 /* Show command. Display a warning if the language set
90 does not match the frame. */
92 show_language_command (struct ui_file *file, int from_tty,
93 struct cmd_list_element *c, const char *value)
95 enum language flang; /* The language of the frame. */
97 if (language_mode == language_mode_auto)
98 fprintf_filtered (gdb_stdout,
99 _("The current source language is "
100 "\"auto; currently %s\".\n"),
101 current_language->name ());
103 fprintf_filtered (gdb_stdout,
104 _("The current source language is \"%s\".\n"),
105 current_language->name ());
107 if (has_stack_frames ())
109 struct frame_info *frame;
111 frame = get_selected_frame (NULL);
112 flang = get_frame_language (frame);
113 if (flang != language_unknown
114 && language_mode == language_mode_manual
115 && current_language->la_language != flang)
116 printf_filtered ("%s\n", _(lang_frame_mismatch_warn));
120 /* Set command. Change the current working language. */
122 set_language_command (const char *ignore,
123 int from_tty, struct cmd_list_element *c)
125 enum language flang = language_unknown;
127 /* "local" is a synonym of "auto". */
128 if (strcmp (language, "local") == 0)
131 /* Search the list of languages for a match. */
132 for (const auto &lang : language_defn::languages)
134 if (strcmp (lang->name (), language) == 0)
136 /* Found it! Go into manual mode, and use this language. */
137 if (lang->la_language == language_auto)
139 /* Enter auto mode. Set to the current frame's language, if
140 known, or fallback to the initial language. */
141 language_mode = language_mode_auto;
144 struct frame_info *frame;
146 frame = get_selected_frame (NULL);
147 flang = get_frame_language (frame);
149 catch (const gdb_exception_error &ex)
151 flang = language_unknown;
154 if (flang != language_unknown)
155 set_language (flang);
157 set_initial_language ();
158 expected_language = current_language;
163 /* Enter manual mode. Set the specified language. */
164 language_mode = language_mode_manual;
165 current_language = lang;
167 expected_language = current_language;
173 internal_error (__FILE__, __LINE__,
174 "Couldn't find language `%s' in known languages list.",
178 /* Show command. Display a warning if the range setting does
179 not match the current language. */
181 show_range_command (struct ui_file *file, int from_tty,
182 struct cmd_list_element *c, const char *value)
184 if (range_mode == range_mode_auto)
193 case range_check_off:
196 case range_check_warn:
200 internal_error (__FILE__, __LINE__,
201 "Unrecognized range check setting.");
204 fprintf_filtered (gdb_stdout,
205 _("Range checking is \"auto; currently %s\".\n"),
209 fprintf_filtered (gdb_stdout, _("Range checking is \"%s\".\n"),
212 if (range_check != current_language->la_range_check)
213 warning (_("the current range check setting "
214 "does not match the language.\n"));
217 /* Set command. Change the setting for range checking. */
219 set_range_command (const char *ignore,
220 int from_tty, struct cmd_list_element *c)
222 if (strcmp (range, "on") == 0)
224 range_check = range_check_on;
225 range_mode = range_mode_manual;
227 else if (strcmp (range, "warn") == 0)
229 range_check = range_check_warn;
230 range_mode = range_mode_manual;
232 else if (strcmp (range, "off") == 0)
234 range_check = range_check_off;
235 range_mode = range_mode_manual;
237 else if (strcmp (range, "auto") == 0)
239 range_mode = range_mode_auto;
245 internal_error (__FILE__, __LINE__,
246 _("Unrecognized range check setting: \"%s\""), range);
248 if (range_check != current_language->la_range_check)
249 warning (_("the current range check setting "
250 "does not match the language.\n"));
253 /* Show command. Display a warning if the case sensitivity setting does
254 not match the current language. */
256 show_case_command (struct ui_file *file, int from_tty,
257 struct cmd_list_element *c, const char *value)
259 if (case_mode == case_mode_auto)
261 const char *tmp = NULL;
263 switch (case_sensitivity)
265 case case_sensitive_on:
268 case case_sensitive_off:
272 internal_error (__FILE__, __LINE__,
273 "Unrecognized case-sensitive setting.");
276 fprintf_filtered (gdb_stdout,
277 _("Case sensitivity in "
278 "name search is \"auto; currently %s\".\n"),
282 fprintf_filtered (gdb_stdout,
283 _("Case sensitivity in name search is \"%s\".\n"),
286 if (case_sensitivity != current_language->la_case_sensitivity)
287 warning (_("the current case sensitivity setting does not match "
291 /* Set command. Change the setting for case sensitivity. */
294 set_case_command (const char *ignore, int from_tty, struct cmd_list_element *c)
296 if (strcmp (case_sensitive, "on") == 0)
298 case_sensitivity = case_sensitive_on;
299 case_mode = case_mode_manual;
301 else if (strcmp (case_sensitive, "off") == 0)
303 case_sensitivity = case_sensitive_off;
304 case_mode = case_mode_manual;
306 else if (strcmp (case_sensitive, "auto") == 0)
308 case_mode = case_mode_auto;
314 internal_error (__FILE__, __LINE__,
315 "Unrecognized case-sensitive setting: \"%s\"",
319 if (case_sensitivity != current_language->la_case_sensitivity)
320 warning (_("the current case sensitivity setting does not match "
324 /* Set the status of range and type checking and case sensitivity based on
325 the current modes and the current language.
326 If SHOW is non-zero, then print out the current language,
327 type and range checking status. */
329 set_range_case (void)
331 if (range_mode == range_mode_auto)
332 range_check = current_language->la_range_check;
334 if (case_mode == case_mode_auto)
335 case_sensitivity = current_language->la_case_sensitivity;
338 /* Set current language to (enum language) LANG. Returns previous
342 set_language (enum language lang)
344 enum language prev_language;
346 prev_language = current_language->la_language;
347 current_language = language_def (lang);
349 return prev_language;
353 /* Print out the current language settings: language, range and
354 type checking. If QUIETLY, print only what has changed. */
357 language_info (int quietly)
359 if (quietly && expected_language == current_language)
362 expected_language = current_language;
363 printf_unfiltered (_("Current language: %s\n"), language);
364 show_language_command (NULL, 1, NULL, NULL);
368 printf_unfiltered (_("Range checking: %s\n"), range);
369 show_range_command (NULL, 1, NULL, NULL);
370 printf_unfiltered (_("Case sensitivity: %s\n"), case_sensitive);
371 show_case_command (NULL, 1, NULL, NULL);
376 /* Returns non-zero if the value is a pointer type. */
378 pointer_type (struct type *type)
380 return type->code () == TYPE_CODE_PTR || TYPE_IS_REFERENCE (type);
384 /* This page contains functions that return info about
385 (struct value) values used in GDB. */
387 /* Returns non-zero if the value VAL represents a true value. */
389 value_true (struct value *val)
391 /* It is possible that we should have some sort of error if a non-boolean
392 value is used in this context. Possibly dependent on some kind of
393 "boolean-checking" option like range checking. But it should probably
394 not depend on the language except insofar as is necessary to identify
395 a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean
396 should be an error, probably). */
397 return !value_logical_not (val);
400 /* This page contains functions for the printing out of
401 error messages that occur during type- and range-
404 /* This is called when a language fails a range-check. The
405 first argument should be a printf()-style format string, and the
406 rest of the arguments should be its arguments. If range_check is
407 range_check_on, an error is printed; if range_check_warn, a warning;
408 otherwise just the message. */
411 range_error (const char *string,...)
415 va_start (args, string);
418 case range_check_warn:
419 vwarning (string, args);
422 verror (string, args);
424 case range_check_off:
425 /* FIXME: cagney/2002-01-30: Should this function print anything
426 when range error is off? */
427 vfprintf_filtered (gdb_stderr, string, args);
428 fprintf_filtered (gdb_stderr, "\n");
431 internal_error (__FILE__, __LINE__, _("bad switch"));
437 /* This page contains miscellaneous functions. */
439 /* Return the language enum for a given language string. */
442 language_enum (const char *str)
444 for (const auto &lang : language_defn::languages)
445 if (strcmp (lang->name (), str) == 0)
446 return lang->la_language;
448 if (strcmp (str, "local") == 0)
449 return language_auto;
451 return language_unknown;
454 /* Return the language struct for a given language enum. */
456 const struct language_defn *
457 language_def (enum language lang)
459 const struct language_defn *l = language_defn::languages[lang];
460 gdb_assert (l != nullptr);
464 /* Return the language as a string. */
467 language_str (enum language lang)
469 return language_def (lang)->name ();
474 /* Build and install the "set language LANG" command. */
477 add_set_language_command ()
479 static const char **language_names;
481 /* Build the language names array, to be used as enumeration in the
482 "set language" enum command. +1 for "local" and +1 for NULL
484 language_names = new const char *[ARRAY_SIZE (language_defn::languages) + 2];
486 /* Display "auto", "local" and "unknown" first, and then the rest,
488 const char **language_names_p = language_names;
489 *language_names_p++ = language_def (language_auto)->name ();
490 *language_names_p++ = "local";
491 *language_names_p++ = language_def (language_unknown)->name ();
492 const char **sort_begin = language_names_p;
493 for (const auto &lang : language_defn::languages)
495 /* Already handled above. */
496 if (lang->la_language == language_auto
497 || lang->la_language == language_unknown)
499 *language_names_p++ = lang->name ();
501 *language_names_p = NULL;
502 std::sort (sort_begin, language_names_p, compare_cstrings);
504 /* Add the filename extensions. */
505 for (const auto &lang : language_defn::languages)
506 for (const char * const &ext : lang->filename_extensions ())
507 add_filename_language (ext, lang->la_language);
509 /* Build the "help set language" docs. */
512 doc.printf (_("Set the current source language.\n"
513 "The currently understood settings are:\n\nlocal or "
514 "auto Automatic setting based on source file"));
516 for (const auto &lang : language_defn::languages)
518 /* Already dealt with these above. */
519 if (lang->la_language == language_unknown
520 || lang->la_language == language_auto)
523 /* Note that we add the newline at the front, so we don't wind
524 up with a trailing newline. */
525 doc.printf ("\n%-16s Use the %s language",
527 lang->natural_name ());
530 add_setshow_enum_cmd ("language", class_support,
534 _("Show the current source language."),
535 NULL, set_language_command,
536 show_language_command,
537 &setlist, &showlist);
540 /* Iterate through all registered languages looking for and calling
541 any non-NULL struct language_defn.skip_trampoline() functions.
542 Return the result from the first that returns non-zero, or 0 if all
545 skip_language_trampoline (struct frame_info *frame, CORE_ADDR pc)
547 for (const auto &lang : language_defn::languages)
549 CORE_ADDR real_pc = lang->skip_trampoline (frame, pc);
558 /* Return demangled language symbol, or NULL.
559 FIXME: Options are only useful for certain languages and ignored
560 by others, so it would be better to remove them here and have a
561 more flexible demangler for the languages that need it.
562 FIXME: Sometimes the demangler is invoked when we don't know the
563 language, so we can't use this everywhere. */
565 language_demangle (const struct language_defn *current_language,
566 const char *mangled, int options)
568 if (current_language != NULL)
569 return current_language->demangle (mangled, options);
573 /* Return information about whether TYPE should be passed
574 (and returned) by reference at the language level. */
576 struct language_pass_by_ref_info
577 language_pass_by_reference (struct type *type)
579 return current_language->pass_by_reference_info (type);
582 /* Return the default string containing the list of characters
583 delimiting words. This is a reasonable default value that
584 most languages should be able to use. */
587 default_word_break_characters (void)
589 return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-";
592 /* See language.h. */
595 language_defn::print_array_index (struct type *index_type, LONGEST index,
596 struct ui_file *stream,
597 const value_print_options *options) const
599 struct value *index_value = value_from_longest (index_type, index);
601 fprintf_filtered (stream, "[");
602 LA_VALUE_PRINT (index_value, stream, options);
603 fprintf_filtered (stream, "] = ");
606 /* See language.h. */
608 gdb::unique_xmalloc_ptr<char>
609 language_defn::watch_location_expression (struct type *type,
610 CORE_ADDR addr) const
612 /* Generates an expression that assumes a C like syntax is valid. */
613 type = check_typedef (TYPE_TARGET_TYPE (check_typedef (type)));
614 std::string name = type_to_string (type);
615 return gdb::unique_xmalloc_ptr<char>
616 (xstrprintf ("* (%s *) %s", name.c_str (), core_addr_to_string (addr)));
619 /* See language.h. */
622 language_defn::value_print (struct value *val, struct ui_file *stream,
623 const struct value_print_options *options) const
625 return c_value_print (val, stream, options);
628 /* See language.h. */
631 language_defn::parser (struct parser_state *ps) const
636 /* See language.h. */
639 language_defn::value_print_inner
640 (struct value *val, struct ui_file *stream, int recurse,
641 const struct value_print_options *options) const
643 return c_value_print_inner (val, stream, recurse, options);
646 /* See language.h. */
649 language_defn::emitchar (int ch, struct type *chtype,
650 struct ui_file * stream, int quoter) const
652 c_emit_char (ch, chtype, stream, quoter);
655 /* See language.h. */
658 language_defn::printchar (int ch, struct type *chtype,
659 struct ui_file * stream) const
661 c_printchar (ch, chtype, stream);
664 /* See language.h. */
667 language_defn::printstr (struct ui_file *stream, struct type *elttype,
668 const gdb_byte *string, unsigned int length,
669 const char *encoding, int force_ellipses,
670 const struct value_print_options *options) const
672 c_printstr (stream, elttype, string, length, encoding, force_ellipses,
676 /* See language.h. */
679 language_defn::print_typedef (struct type *type, struct symbol *new_symbol,
680 struct ui_file *stream) const
682 c_print_typedef (type, new_symbol, stream);
685 /* See language.h. */
688 language_defn::is_string_type_p (struct type *type) const
690 return c_is_string_type_p (type);
693 /* The default implementation of the get_symbol_name_matcher_inner method
694 from the language_defn class. Matches with strncmp_iw. */
697 default_symbol_name_matcher (const char *symbol_search_name,
698 const lookup_name_info &lookup_name,
699 completion_match_result *comp_match_res)
701 gdb::string_view name = lookup_name.name ();
702 completion_match_for_lcd *match_for_lcd
703 = (comp_match_res != NULL ? &comp_match_res->match_for_lcd : NULL);
704 strncmp_iw_mode mode = (lookup_name.completion_mode ()
705 ? strncmp_iw_mode::NORMAL
706 : strncmp_iw_mode::MATCH_PARAMS);
708 if (strncmp_iw_with_mode (symbol_search_name, name.data (), name.size (),
709 mode, language_minimal, match_for_lcd) == 0)
711 if (comp_match_res != NULL)
712 comp_match_res->set_match (symbol_search_name);
719 /* See language.h. */
721 symbol_name_matcher_ftype *
722 language_defn::get_symbol_name_matcher
723 (const lookup_name_info &lookup_name) const
725 /* If currently in Ada mode, and the lookup name is wrapped in
726 '<...>', hijack all symbol name comparisons using the Ada
727 matcher, which handles the verbatim matching. */
728 if (current_language->la_language == language_ada
729 && lookup_name.ada ().verbatim_p ())
730 return current_language->get_symbol_name_matcher_inner (lookup_name);
732 return this->get_symbol_name_matcher_inner (lookup_name);
735 /* See language.h. */
737 symbol_name_matcher_ftype *
738 language_defn::get_symbol_name_matcher_inner
739 (const lookup_name_info &lookup_name) const
741 return default_symbol_name_matcher;
744 /* Return true if TYPE is a string type, otherwise return false. This
745 default implementation only detects TYPE_CODE_STRING. */
748 default_is_string_type_p (struct type *type)
750 type = check_typedef (type);
751 while (type->code () == TYPE_CODE_REF)
753 type = TYPE_TARGET_TYPE (type);
754 type = check_typedef (type);
756 return (type->code () == TYPE_CODE_STRING);
759 static const struct op_print unk_op_print_tab[] =
761 {NULL, OP_NULL, PREC_NULL, 0}
765 unknown_language_arch_info (struct gdbarch *gdbarch,
766 struct language_arch_info *lai)
768 lai->string_char_type = builtin_type (gdbarch)->builtin_char;
769 lai->bool_type_default = builtin_type (gdbarch)->builtin_int;
770 lai->primitive_type_vector = GDBARCH_OBSTACK_CALLOC (gdbarch, 1,
774 /* Constant data that describes the unknown language. */
776 extern const struct language_data unknown_language_data =
782 &exp_descriptor_standard,
783 true, /* store_sym_names_in_linkage_form_p */
784 unk_op_print_tab, /* expression operators for printing */
785 1, /* c-style arrays */
786 0, /* String lower bound */
790 /* Class representing the unknown language. */
792 class unknown_language : public language_defn
796 : language_defn (language_unknown, unknown_language_data)
799 /* See language.h. */
801 const char *name () const override
802 { return "unknown"; }
804 /* See language.h. */
806 const char *natural_name () const override
807 { return "Unknown"; }
809 /* See language.h. */
810 void language_arch_info (struct gdbarch *gdbarch,
811 struct language_arch_info *lai) const override
813 unknown_language_arch_info (gdbarch, lai);
816 /* See language.h. */
818 void print_type (struct type *type, const char *varstring,
819 struct ui_file *stream, int show, int level,
820 const struct type_print_options *flags) const override
822 error (_("unimplemented unknown_language::print_type called"));
825 /* See language.h. */
827 char *demangle (const char *mangled, int options) const override
829 /* The unknown language just uses the C++ demangler. */
830 return gdb_demangle (mangled, options);
833 /* See language.h. */
835 void value_print (struct value *val, struct ui_file *stream,
836 const struct value_print_options *options) const override
838 error (_("unimplemented unknown_language::value_print called"));
841 /* See language.h. */
843 void value_print_inner
844 (struct value *val, struct ui_file *stream, int recurse,
845 const struct value_print_options *options) const override
847 error (_("unimplemented unknown_language::value_print_inner called"));
850 /* See language.h. */
852 int parser (struct parser_state *ps) const override
854 /* No parsing is done, just claim success. */
858 /* See language.h. */
860 void emitchar (int ch, struct type *chtype,
861 struct ui_file *stream, int quoter) const override
863 error (_("unimplemented unknown_language::emitchar called"));
866 /* See language.h. */
868 void printchar (int ch, struct type *chtype,
869 struct ui_file *stream) const override
871 error (_("unimplemented unknown_language::printchar called"));
874 /* See language.h. */
876 void printstr (struct ui_file *stream, struct type *elttype,
877 const gdb_byte *string, unsigned int length,
878 const char *encoding, int force_ellipses,
879 const struct value_print_options *options) const override
881 error (_("unimplemented unknown_language::printstr called"));
884 /* See language.h. */
886 void print_typedef (struct type *type, struct symbol *new_symbol,
887 struct ui_file *stream) const override
889 error (_("unimplemented unknown_language::print_typedef called"));
892 /* See language.h. */
894 bool is_string_type_p (struct type *type) const override
896 return default_is_string_type_p (type);
899 /* See language.h. */
901 const char *name_of_this () const override
905 /* Single instance of the unknown language class. */
907 static unknown_language unknown_language_defn;
909 /* Constant data for the fake "auto" language. */
911 extern const struct language_data auto_language_data =
917 &exp_descriptor_standard,
918 false, /* store_sym_names_in_linkage_form_p */
919 unk_op_print_tab, /* expression operators for printing */
920 1, /* c-style arrays */
921 0, /* String lower bound */
925 /* Class representing the fake "auto" language. */
927 class auto_language : public language_defn
931 : language_defn (language_auto, auto_language_data)
934 /* See language.h. */
936 const char *name () const override
939 /* See language.h. */
941 const char *natural_name () const override
944 /* See language.h. */
945 void language_arch_info (struct gdbarch *gdbarch,
946 struct language_arch_info *lai) const override
948 unknown_language_arch_info (gdbarch, lai);
951 /* See language.h. */
953 void print_type (struct type *type, const char *varstring,
954 struct ui_file *stream, int show, int level,
955 const struct type_print_options *flags) const override
957 error (_("unimplemented auto_language::print_type called"));
960 /* See language.h. */
962 char *demangle (const char *mangled, int options) const override
964 /* The auto language just uses the C++ demangler. */
965 return gdb_demangle (mangled, options);
968 /* See language.h. */
970 void value_print (struct value *val, struct ui_file *stream,
971 const struct value_print_options *options) const override
973 error (_("unimplemented auto_language::value_print called"));
976 /* See language.h. */
978 void value_print_inner
979 (struct value *val, struct ui_file *stream, int recurse,
980 const struct value_print_options *options) const override
982 error (_("unimplemented auto_language::value_print_inner called"));
985 /* See language.h. */
987 int parser (struct parser_state *ps) const override
989 /* No parsing is done, just claim success. */
993 /* See language.h. */
995 void emitchar (int ch, struct type *chtype,
996 struct ui_file *stream, int quoter) const override
998 error (_("unimplemented auto_language::emitchar called"));
1001 /* See language.h. */
1003 void printchar (int ch, struct type *chtype,
1004 struct ui_file *stream) const override
1006 error (_("unimplemented auto_language::printchar called"));
1009 /* See language.h. */
1011 void printstr (struct ui_file *stream, struct type *elttype,
1012 const gdb_byte *string, unsigned int length,
1013 const char *encoding, int force_ellipses,
1014 const struct value_print_options *options) const override
1016 error (_("unimplemented auto_language::printstr called"));
1019 /* See language.h. */
1021 void print_typedef (struct type *type, struct symbol *new_symbol,
1022 struct ui_file *stream) const override
1024 error (_("unimplemented auto_language::print_typedef called"));
1027 /* See language.h. */
1029 bool is_string_type_p (struct type *type) const override
1031 return default_is_string_type_p (type);
1034 /* See language.h. */
1036 const char *name_of_this () const override
1040 /* Single instance of the fake "auto" language. */
1042 static auto_language auto_language_defn;
1045 /* Per-architecture language information. */
1047 static struct gdbarch_data *language_gdbarch_data;
1049 struct language_gdbarch
1051 /* A vector of per-language per-architecture info. Indexed by "enum
1053 struct language_arch_info arch_info[nr_languages];
1057 language_gdbarch_post_init (struct gdbarch *gdbarch)
1059 struct language_gdbarch *l;
1061 l = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct language_gdbarch);
1062 for (const auto &lang : language_defn::languages)
1064 gdb_assert (lang != nullptr);
1065 lang->language_arch_info (gdbarch,
1066 l->arch_info + lang->la_language);
1073 language_string_char_type (const struct language_defn *la,
1074 struct gdbarch *gdbarch)
1076 struct language_gdbarch *ld
1077 = (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
1079 return ld->arch_info[la->la_language].string_char_type;
1083 language_bool_type (const struct language_defn *la,
1084 struct gdbarch *gdbarch)
1086 struct language_gdbarch *ld
1087 = (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
1089 if (ld->arch_info[la->la_language].bool_type_symbol)
1093 sym = lookup_symbol (ld->arch_info[la->la_language].bool_type_symbol,
1094 NULL, VAR_DOMAIN, NULL).symbol;
1097 struct type *type = SYMBOL_TYPE (sym);
1099 if (type && type->code () == TYPE_CODE_BOOL)
1104 return ld->arch_info[la->la_language].bool_type_default;
1107 /* Helper function for primitive type lookup. */
1109 static struct type **
1110 language_lookup_primitive_type_1 (const struct language_arch_info *lai,
1115 for (p = lai->primitive_type_vector; (*p) != NULL; p++)
1117 if (strcmp ((*p)->name (), name) == 0)
1123 /* See language.h. */
1126 language_lookup_primitive_type (const struct language_defn *la,
1127 struct gdbarch *gdbarch,
1130 struct language_gdbarch *ld =
1131 (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
1132 struct type **typep;
1134 typep = language_lookup_primitive_type_1 (&ld->arch_info[la->la_language],
1141 /* Helper function for type lookup as a symbol.
1142 Create the symbol corresponding to type TYPE in language LANG. */
1144 static struct symbol *
1145 language_alloc_type_symbol (enum language lang, struct type *type)
1147 struct symbol *symbol;
1148 struct gdbarch *gdbarch;
1150 gdb_assert (!TYPE_OBJFILE_OWNED (type));
1152 gdbarch = TYPE_OWNER (type).gdbarch;
1153 symbol = new (gdbarch_obstack (gdbarch)) struct symbol ();
1155 symbol->m_name = type->name ();
1156 symbol->set_language (lang, nullptr);
1157 symbol->owner.arch = gdbarch;
1158 SYMBOL_OBJFILE_OWNED (symbol) = 0;
1159 SYMBOL_SECTION (symbol) = 0;
1160 SYMBOL_TYPE (symbol) = type;
1161 SYMBOL_DOMAIN (symbol) = VAR_DOMAIN;
1162 SYMBOL_ACLASS_INDEX (symbol) = LOC_TYPEDEF;
1167 /* Initialize the primitive type symbols of language LD.
1168 The primitive type vector must have already been initialized. */
1171 language_init_primitive_type_symbols (struct language_arch_info *lai,
1172 const struct language_defn *la,
1173 struct gdbarch *gdbarch)
1177 gdb_assert (lai->primitive_type_vector != NULL);
1179 for (n = 0; lai->primitive_type_vector[n] != NULL; ++n)
1182 lai->primitive_type_symbols
1183 = GDBARCH_OBSTACK_CALLOC (gdbarch, n + 1, struct symbol *);
1185 for (n = 0; lai->primitive_type_vector[n] != NULL; ++n)
1187 lai->primitive_type_symbols[n]
1188 = language_alloc_type_symbol (la->la_language,
1189 lai->primitive_type_vector[n]);
1192 /* Note: The result of symbol lookup is normally a symbol *and* the block
1193 it was found in. Builtin types don't live in blocks. We *could* give
1194 them one, but there is no current need so to keep things simple symbol
1195 lookup is extended to allow for BLOCK_FOUND to be NULL. */
1198 /* See language.h. */
1201 language_lookup_primitive_type_as_symbol (const struct language_defn *la,
1202 struct gdbarch *gdbarch,
1205 struct language_gdbarch *ld
1206 = (struct language_gdbarch *) gdbarch_data (gdbarch, language_gdbarch_data);
1207 struct language_arch_info *lai = &ld->arch_info[la->la_language];
1208 struct type **typep;
1211 if (symbol_lookup_debug)
1213 fprintf_unfiltered (gdb_stdlog,
1214 "language_lookup_primitive_type_as_symbol"
1216 la->name (), host_address_to_string (gdbarch), name);
1219 typep = language_lookup_primitive_type_1 (lai, name);
1222 if (symbol_lookup_debug)
1223 fprintf_unfiltered (gdb_stdlog, " = NULL\n");
1227 /* The set of symbols is lazily initialized. */
1228 if (lai->primitive_type_symbols == NULL)
1229 language_init_primitive_type_symbols (lai, la, gdbarch);
1231 sym = lai->primitive_type_symbols[typep - lai->primitive_type_vector];
1233 if (symbol_lookup_debug)
1234 fprintf_unfiltered (gdb_stdlog, " = %s\n", host_address_to_string (sym));
1238 /* Initialize the language routines. */
1240 void _initialize_language ();
1242 _initialize_language ()
1244 static const char *const type_or_range_names[]
1245 = { "on", "off", "warn", "auto", NULL };
1247 static const char *const case_sensitive_names[]
1248 = { "on", "off", "auto", NULL };
1250 language_gdbarch_data
1251 = gdbarch_data_register_post_init (language_gdbarch_post_init);
1253 /* GDB commands for language specific stuff. */
1255 add_basic_prefix_cmd ("check", no_class,
1256 _("Set the status of the type/range checker."),
1257 &setchecklist, "set check ", 0, &setlist);
1258 add_alias_cmd ("c", "check", no_class, 1, &setlist);
1259 add_alias_cmd ("ch", "check", no_class, 1, &setlist);
1261 add_show_prefix_cmd ("check", no_class,
1262 _("Show the status of the type/range checker."),
1263 &showchecklist, "show check ", 0, &showlist);
1264 add_alias_cmd ("c", "check", no_class, 1, &showlist);
1265 add_alias_cmd ("ch", "check", no_class, 1, &showlist);
1267 add_setshow_enum_cmd ("range", class_support, type_or_range_names,
1269 _("Set range checking (on/warn/off/auto)."),
1270 _("Show range checking (on/warn/off/auto)."),
1271 NULL, set_range_command,
1273 &setchecklist, &showchecklist);
1275 add_setshow_enum_cmd ("case-sensitive", class_support, case_sensitive_names,
1276 &case_sensitive, _("\
1277 Set case sensitivity in name search (on/off/auto)."), _("\
1278 Show case sensitivity in name search (on/off/auto)."), _("\
1279 For Fortran the default is off; for other languages the default is on."),
1282 &setlist, &showlist);
1284 /* In order to call SET_LANGUAGE (below) we need to make sure that
1285 CURRENT_LANGUAGE is not NULL. So first set the language to unknown,
1286 then we can change the language to 'auto'. */
1287 current_language = language_def (language_unknown);
1289 add_set_language_command ();
1293 case_sensitive = "auto";
1295 /* Have the above take effect. */
1296 set_language (language_auto);