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 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 /* The current (default at startup) state of type and range checking.
64 (If the modes are set to "auto", though, these are changed based
65 on the default language at startup, and then again based on the
66 language of the first source file. */
68 enum range_mode range_mode
= range_mode_auto
;
69 enum range_check range_check
= range_check_off
;
70 enum case_mode case_mode
= case_mode_auto
;
71 enum case_sensitivity case_sensitivity
= case_sensitive_on
;
73 /* The current language and language_mode (see language.h). */
75 const struct language_defn
*current_language
= nullptr;
76 enum language_mode language_mode
= language_mode_auto
;
78 /* The language that the user expects to be typing in (the language
79 of main(), or the last language we notified them about, or C). */
81 const struct language_defn
*expected_language
;
83 /* Define the array containing all languages. */
85 const struct language_defn
*language_defn::languages
[nr_languages
];
87 /* The current values of the "set language/range/case-sensitive" enum
89 static const char *language
;
90 static const char *range
;
91 static const char *case_sensitive
;
94 const char lang_frame_mismatch_warn
[] =
95 N_("Warning: the current language does not match this frame.");
97 /* This page contains the functions corresponding to GDB commands
100 /* Show command. Display a warning if the language set
101 does not match the frame. */
103 show_language_command (struct ui_file
*file
, int from_tty
,
104 struct cmd_list_element
*c
, const char *value
)
106 enum language flang
; /* The language of the frame. */
108 if (language_mode
== language_mode_auto
)
109 fprintf_filtered (gdb_stdout
,
110 _("The current source language is "
111 "\"auto; currently %s\".\n"),
112 current_language
->la_name
);
114 fprintf_filtered (gdb_stdout
,
115 _("The current source language is \"%s\".\n"),
116 current_language
->la_name
);
118 if (has_stack_frames ())
120 struct frame_info
*frame
;
122 frame
= get_selected_frame (NULL
);
123 flang
= get_frame_language (frame
);
124 if (flang
!= language_unknown
125 && language_mode
== language_mode_manual
126 && current_language
->la_language
!= flang
)
127 printf_filtered ("%s\n", _(lang_frame_mismatch_warn
));
131 /* Set command. Change the current working language. */
133 set_language_command (const char *ignore
,
134 int from_tty
, struct cmd_list_element
*c
)
136 enum language flang
= language_unknown
;
138 /* "local" is a synonym of "auto". */
139 if (strcmp (language
, "local") == 0)
142 /* Search the list of languages for a match. */
143 for (const auto &lang
: language_defn::languages
)
145 if (strcmp (lang
->la_name
, language
) == 0)
147 /* Found it! Go into manual mode, and use this language. */
148 if (lang
->la_language
== language_auto
)
150 /* Enter auto mode. Set to the current frame's language, if
151 known, or fallback to the initial language. */
152 language_mode
= language_mode_auto
;
155 struct frame_info
*frame
;
157 frame
= get_selected_frame (NULL
);
158 flang
= get_frame_language (frame
);
160 catch (const gdb_exception_error
&ex
)
162 flang
= language_unknown
;
165 if (flang
!= language_unknown
)
166 set_language (flang
);
168 set_initial_language ();
169 expected_language
= current_language
;
174 /* Enter manual mode. Set the specified language. */
175 language_mode
= language_mode_manual
;
176 current_language
= lang
;
178 expected_language
= current_language
;
184 internal_error (__FILE__
, __LINE__
,
185 "Couldn't find language `%s' in known languages list.",
189 /* Show command. Display a warning if the range setting does
190 not match the current language. */
192 show_range_command (struct ui_file
*file
, int from_tty
,
193 struct cmd_list_element
*c
, const char *value
)
195 if (range_mode
== range_mode_auto
)
204 case range_check_off
:
207 case range_check_warn
:
211 internal_error (__FILE__
, __LINE__
,
212 "Unrecognized range check setting.");
215 fprintf_filtered (gdb_stdout
,
216 _("Range checking is \"auto; currently %s\".\n"),
220 fprintf_filtered (gdb_stdout
, _("Range checking is \"%s\".\n"),
223 if (range_check
!= current_language
->la_range_check
)
224 warning (_("the current range check setting "
225 "does not match the language.\n"));
228 /* Set command. Change the setting for range checking. */
230 set_range_command (const char *ignore
,
231 int from_tty
, struct cmd_list_element
*c
)
233 if (strcmp (range
, "on") == 0)
235 range_check
= range_check_on
;
236 range_mode
= range_mode_manual
;
238 else if (strcmp (range
, "warn") == 0)
240 range_check
= range_check_warn
;
241 range_mode
= range_mode_manual
;
243 else if (strcmp (range
, "off") == 0)
245 range_check
= range_check_off
;
246 range_mode
= range_mode_manual
;
248 else if (strcmp (range
, "auto") == 0)
250 range_mode
= range_mode_auto
;
256 internal_error (__FILE__
, __LINE__
,
257 _("Unrecognized range check setting: \"%s\""), range
);
259 if (range_check
!= current_language
->la_range_check
)
260 warning (_("the current range check setting "
261 "does not match the language.\n"));
264 /* Show command. Display a warning if the case sensitivity setting does
265 not match the current language. */
267 show_case_command (struct ui_file
*file
, int from_tty
,
268 struct cmd_list_element
*c
, const char *value
)
270 if (case_mode
== case_mode_auto
)
272 const char *tmp
= NULL
;
274 switch (case_sensitivity
)
276 case case_sensitive_on
:
279 case case_sensitive_off
:
283 internal_error (__FILE__
, __LINE__
,
284 "Unrecognized case-sensitive setting.");
287 fprintf_filtered (gdb_stdout
,
288 _("Case sensitivity in "
289 "name search is \"auto; currently %s\".\n"),
293 fprintf_filtered (gdb_stdout
,
294 _("Case sensitivity in name search is \"%s\".\n"),
297 if (case_sensitivity
!= current_language
->la_case_sensitivity
)
298 warning (_("the current case sensitivity setting does not match "
302 /* Set command. Change the setting for case sensitivity. */
305 set_case_command (const char *ignore
, int from_tty
, struct cmd_list_element
*c
)
307 if (strcmp (case_sensitive
, "on") == 0)
309 case_sensitivity
= case_sensitive_on
;
310 case_mode
= case_mode_manual
;
312 else if (strcmp (case_sensitive
, "off") == 0)
314 case_sensitivity
= case_sensitive_off
;
315 case_mode
= case_mode_manual
;
317 else if (strcmp (case_sensitive
, "auto") == 0)
319 case_mode
= case_mode_auto
;
325 internal_error (__FILE__
, __LINE__
,
326 "Unrecognized case-sensitive setting: \"%s\"",
330 if (case_sensitivity
!= current_language
->la_case_sensitivity
)
331 warning (_("the current case sensitivity setting does not match "
335 /* Set the status of range and type checking and case sensitivity based on
336 the current modes and the current language.
337 If SHOW is non-zero, then print out the current language,
338 type and range checking status. */
340 set_range_case (void)
342 if (range_mode
== range_mode_auto
)
343 range_check
= current_language
->la_range_check
;
345 if (case_mode
== case_mode_auto
)
346 case_sensitivity
= current_language
->la_case_sensitivity
;
349 /* Set current language to (enum language) LANG. Returns previous
353 set_language (enum language lang
)
355 enum language prev_language
;
357 prev_language
= current_language
->la_language
;
358 current_language
= language_def (lang
);
360 return prev_language
;
364 /* Print out the current language settings: language, range and
365 type checking. If QUIETLY, print only what has changed. */
368 language_info (int quietly
)
370 if (quietly
&& expected_language
== current_language
)
373 expected_language
= current_language
;
374 printf_unfiltered (_("Current language: %s\n"), language
);
375 show_language_command (NULL
, 1, NULL
, NULL
);
379 printf_unfiltered (_("Range checking: %s\n"), range
);
380 show_range_command (NULL
, 1, NULL
, NULL
);
381 printf_unfiltered (_("Case sensitivity: %s\n"), case_sensitive
);
382 show_case_command (NULL
, 1, NULL
, NULL
);
387 /* Returns non-zero if the value is a pointer type. */
389 pointer_type (struct type
*type
)
391 return type
->code () == TYPE_CODE_PTR
|| TYPE_IS_REFERENCE (type
);
395 /* This page contains functions that return info about
396 (struct value) values used in GDB. */
398 /* Returns non-zero if the value VAL represents a true value. */
400 value_true (struct value
*val
)
402 /* It is possible that we should have some sort of error if a non-boolean
403 value is used in this context. Possibly dependent on some kind of
404 "boolean-checking" option like range checking. But it should probably
405 not depend on the language except insofar as is necessary to identify
406 a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean
407 should be an error, probably). */
408 return !value_logical_not (val
);
411 /* This page contains functions for the printing out of
412 error messages that occur during type- and range-
415 /* This is called when a language fails a range-check. The
416 first argument should be a printf()-style format string, and the
417 rest of the arguments should be its arguments. If range_check is
418 range_check_on, an error is printed; if range_check_warn, a warning;
419 otherwise just the message. */
422 range_error (const char *string
,...)
426 va_start (args
, string
);
429 case range_check_warn
:
430 vwarning (string
, args
);
433 verror (string
, args
);
435 case range_check_off
:
436 /* FIXME: cagney/2002-01-30: Should this function print anything
437 when range error is off? */
438 vfprintf_filtered (gdb_stderr
, string
, args
);
439 fprintf_filtered (gdb_stderr
, "\n");
442 internal_error (__FILE__
, __LINE__
, _("bad switch"));
448 /* This page contains miscellaneous functions. */
450 /* Return the language enum for a given language string. */
453 language_enum (const char *str
)
455 for (const auto &lang
: language_defn::languages
)
456 if (strcmp (lang
->la_name
, str
) == 0)
457 return lang
->la_language
;
459 if (strcmp (str
, "local") == 0)
460 return language_auto
;
462 return language_unknown
;
465 /* Return the language struct for a given language enum. */
467 const struct language_defn
*
468 language_def (enum language lang
)
470 const struct language_defn
*l
= language_defn::languages
[lang
];
471 gdb_assert (l
!= nullptr);
475 /* Return the language as a string. */
478 language_str (enum language lang
)
480 return language_def (lang
)->la_name
;
485 /* Build and install the "set language LANG" command. */
488 add_set_language_command ()
490 static const char **language_names
;
492 /* Build the language names array, to be used as enumeration in the
493 "set language" enum command. +1 for "local" and +1 for NULL
495 language_names
= new const char *[ARRAY_SIZE (language_defn::languages
) + 2];
497 /* Display "auto", "local" and "unknown" first, and then the rest,
499 const char **language_names_p
= language_names
;
500 *language_names_p
++ = language_def (language_auto
)->la_name
;
501 *language_names_p
++ = "local";
502 *language_names_p
++ = language_def (language_unknown
)->la_name
;
503 const char **sort_begin
= language_names_p
;
504 for (const auto &lang
: language_defn::languages
)
506 /* Already handled above. */
507 if (lang
->la_language
== language_auto
508 || lang
->la_language
== language_unknown
)
510 *language_names_p
++ = lang
->la_name
;
512 *language_names_p
= NULL
;
513 std::sort (sort_begin
, language_names_p
, compare_cstrings
);
515 /* Add the filename extensions. */
516 for (const auto &lang
: language_defn::languages
)
517 if (lang
->la_filename_extensions
!= NULL
)
519 for (size_t i
= 0; lang
->la_filename_extensions
[i
] != NULL
; ++i
)
520 add_filename_language (lang
->la_filename_extensions
[i
],
524 /* Build the "help set language" docs. */
527 doc
.printf (_("Set the current source language.\n"
528 "The currently understood settings are:\n\nlocal or "
529 "auto Automatic setting based on source file"));
531 for (const auto &lang
: language_defn::languages
)
533 /* Already dealt with these above. */
534 if (lang
->la_language
== language_unknown
535 || lang
->la_language
== language_auto
)
538 /* FIXME: i18n: for now assume that the human-readable name is
539 just a capitalization of the internal name. */
540 /* Note that we add the newline at the front, so we don't wind
541 up with a trailing newline. */
542 doc
.printf ("\n%-16s Use the %c%s language",
544 /* Capitalize first letter of language name. */
545 toupper (lang
->la_name
[0]),
549 add_setshow_enum_cmd ("language", class_support
,
553 _("Show the current source language."),
554 NULL
, set_language_command
,
555 show_language_command
,
556 &setlist
, &showlist
);
559 /* Iterate through all registered languages looking for and calling
560 any non-NULL struct language_defn.skip_trampoline() functions.
561 Return the result from the first that returns non-zero, or 0 if all
564 skip_language_trampoline (struct frame_info
*frame
, CORE_ADDR pc
)
566 for (const auto &lang
: language_defn::languages
)
568 CORE_ADDR real_pc
= lang
->skip_trampoline (frame
, pc
);
577 /* Return demangled language symbol, or NULL.
578 FIXME: Options are only useful for certain languages and ignored
579 by others, so it would be better to remove them here and have a
580 more flexible demangler for the languages that need it.
581 FIXME: Sometimes the demangler is invoked when we don't know the
582 language, so we can't use this everywhere. */
584 language_demangle (const struct language_defn
*current_language
,
585 const char *mangled
, int options
)
587 if (current_language
!= NULL
)
588 return current_language
->demangle (mangled
, options
);
592 /* Return information about whether TYPE should be passed
593 (and returned) by reference at the language level. */
595 struct language_pass_by_ref_info
596 language_pass_by_reference (struct type
*type
)
598 return current_language
->pass_by_reference_info (type
);
601 /* Return the default string containing the list of characters
602 delimiting words. This is a reasonable default value that
603 most languages should be able to use. */
606 default_word_break_characters (void)
608 return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-";
611 /* See language.h. */
614 language_defn::print_array_index (struct type
*index_type
, LONGEST index
,
615 struct ui_file
*stream
,
616 const value_print_options
*options
) const
618 struct value
*index_value
= value_from_longest (index_type
, index
);
620 fprintf_filtered (stream
, "[");
621 LA_VALUE_PRINT (index_value
, stream
, options
);
622 fprintf_filtered (stream
, "] = ");
625 /* The default implementation of the get_symbol_name_matcher_inner method
626 from the language_defn class. Matches with strncmp_iw. */
629 default_symbol_name_matcher (const char *symbol_search_name
,
630 const lookup_name_info
&lookup_name
,
631 completion_match_result
*comp_match_res
)
633 gdb::string_view name
= lookup_name
.name ();
634 completion_match_for_lcd
*match_for_lcd
635 = (comp_match_res
!= NULL
? &comp_match_res
->match_for_lcd
: NULL
);
636 strncmp_iw_mode mode
= (lookup_name
.completion_mode ()
637 ? strncmp_iw_mode::NORMAL
638 : strncmp_iw_mode::MATCH_PARAMS
);
640 if (strncmp_iw_with_mode (symbol_search_name
, name
.data (), name
.size (),
641 mode
, language_minimal
, match_for_lcd
) == 0)
643 if (comp_match_res
!= NULL
)
644 comp_match_res
->set_match (symbol_search_name
);
651 /* See language.h. */
653 symbol_name_matcher_ftype
*
654 language_defn::get_symbol_name_matcher
655 (const lookup_name_info
&lookup_name
) const
657 /* If currently in Ada mode, and the lookup name is wrapped in
658 '<...>', hijack all symbol name comparisons using the Ada
659 matcher, which handles the verbatim matching. */
660 if (current_language
->la_language
== language_ada
661 && lookup_name
.ada ().verbatim_p ())
662 return current_language
->get_symbol_name_matcher_inner (lookup_name
);
664 return this->get_symbol_name_matcher_inner (lookup_name
);
667 /* See language.h. */
669 symbol_name_matcher_ftype
*
670 language_defn::get_symbol_name_matcher_inner
671 (const lookup_name_info
&lookup_name
) const
673 return default_symbol_name_matcher
;
676 /* See language.h. */
679 default_is_string_type_p (struct type
*type
)
681 type
= check_typedef (type
);
682 while (type
->code () == TYPE_CODE_REF
)
684 type
= TYPE_TARGET_TYPE (type
);
685 type
= check_typedef (type
);
687 return (type
->code () == TYPE_CODE_STRING
);
690 /* Define the language that is no language. */
693 unk_lang_parser (struct parser_state
*ps
)
699 unk_lang_emit_char (int c
, struct type
*type
, struct ui_file
*stream
,
702 error (_("internal error - unimplemented "
703 "function unk_lang_emit_char called."));
707 unk_lang_printchar (int c
, struct type
*type
, struct ui_file
*stream
)
709 error (_("internal error - unimplemented "
710 "function unk_lang_printchar called."));
714 unk_lang_printstr (struct ui_file
*stream
, struct type
*type
,
715 const gdb_byte
*string
, unsigned int length
,
716 const char *encoding
, int force_ellipses
,
717 const struct value_print_options
*options
)
719 error (_("internal error - unimplemented "
720 "function unk_lang_printstr called."));
724 unk_lang_value_print_inner (struct value
*val
,
725 struct ui_file
*stream
, int recurse
,
726 const struct value_print_options
*options
)
728 error (_("internal error - unimplemented "
729 "function unk_lang_value_print_inner called."));
733 unk_lang_value_print (struct value
*val
, struct ui_file
*stream
,
734 const struct value_print_options
*options
)
736 error (_("internal error - unimplemented "
737 "function unk_lang_value_print called."));
740 static const struct op_print unk_op_print_tab
[] =
742 {NULL
, OP_NULL
, PREC_NULL
, 0}
746 unknown_language_arch_info (struct gdbarch
*gdbarch
,
747 struct language_arch_info
*lai
)
749 lai
->string_char_type
= builtin_type (gdbarch
)->builtin_char
;
750 lai
->bool_type_default
= builtin_type (gdbarch
)->builtin_int
;
751 lai
->primitive_type_vector
= GDBARCH_OBSTACK_CALLOC (gdbarch
, 1,
755 /* Constant data that describes the unknown language. */
757 extern const struct language_data unknown_language_data
=
767 &exp_descriptor_standard
,
770 unk_lang_printchar
, /* Print character constant */
773 default_print_typedef
, /* Print a typedef using appropriate syntax */
774 unk_lang_value_print_inner
, /* la_value_print_inner */
775 unk_lang_value_print
, /* Print a top-level value */
776 "this", /* name_of_this */
777 true, /* store_sym_names_in_linkage_form_p */
778 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
779 unk_op_print_tab
, /* expression operators for printing */
780 1, /* c-style arrays */
781 0, /* String lower bound */
782 default_word_break_characters
,
783 default_collect_symbol_completion_matches
,
784 c_watch_location_expression
,
786 default_is_string_type_p
,
787 "{...}" /* la_struct_too_deep_ellipsis */
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. */
800 void language_arch_info (struct gdbarch
*gdbarch
,
801 struct language_arch_info
*lai
) const override
803 unknown_language_arch_info (gdbarch
, lai
);
806 /* See language.h. */
808 void print_type (struct type
*type
, const char *varstring
,
809 struct ui_file
*stream
, int show
, int level
,
810 const struct type_print_options
*flags
) const override
812 error (_("unimplemented unknown_language::print_type called"));
815 /* See language.h. */
817 char *demangle (const char *mangled
, int options
) const override
819 /* The unknown language just uses the C++ demangler. */
820 return gdb_demangle (mangled
, options
);
824 /* Single instance of the unknown language class. */
826 static unknown_language unknown_language_defn
;
828 /* Constant data for the fake "auto" language. */
830 extern const struct language_data auto_language_data
=
840 &exp_descriptor_standard
,
843 unk_lang_printchar
, /* Print character constant */
846 default_print_typedef
, /* Print a typedef using appropriate syntax */
847 unk_lang_value_print_inner
, /* la_value_print_inner */
848 unk_lang_value_print
, /* Print a top-level value */
849 "this", /* name_of_this */
850 false, /* store_sym_names_in_linkage_form_p */
851 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
852 unk_op_print_tab
, /* expression operators for printing */
853 1, /* c-style arrays */
854 0, /* String lower bound */
855 default_word_break_characters
,
856 default_collect_symbol_completion_matches
,
857 c_watch_location_expression
,
859 default_is_string_type_p
,
860 "{...}" /* la_struct_too_deep_ellipsis */
863 /* Class representing the fake "auto" language. */
865 class auto_language
: public language_defn
869 : language_defn (language_auto
, auto_language_data
)
872 /* See language.h. */
873 void language_arch_info (struct gdbarch
*gdbarch
,
874 struct language_arch_info
*lai
) const override
876 unknown_language_arch_info (gdbarch
, lai
);
879 /* See language.h. */
881 void print_type (struct type
*type
, const char *varstring
,
882 struct ui_file
*stream
, int show
, int level
,
883 const struct type_print_options
*flags
) const override
885 error (_("unimplemented auto_language::print_type called"));
888 /* See language.h. */
890 char *demangle (const char *mangled
, int options
) const override
892 /* The auto language just uses the C++ demangler. */
893 return gdb_demangle (mangled
, options
);
897 /* Single instance of the fake "auto" language. */
899 static auto_language auto_language_defn
;
902 /* Per-architecture language information. */
904 static struct gdbarch_data
*language_gdbarch_data
;
906 struct language_gdbarch
908 /* A vector of per-language per-architecture info. Indexed by "enum
910 struct language_arch_info arch_info
[nr_languages
];
914 language_gdbarch_post_init (struct gdbarch
*gdbarch
)
916 struct language_gdbarch
*l
;
918 l
= GDBARCH_OBSTACK_ZALLOC (gdbarch
, struct language_gdbarch
);
919 for (const auto &lang
: language_defn::languages
)
921 gdb_assert (lang
!= nullptr);
922 lang
->language_arch_info (gdbarch
,
923 l
->arch_info
+ lang
->la_language
);
930 language_string_char_type (const struct language_defn
*la
,
931 struct gdbarch
*gdbarch
)
933 struct language_gdbarch
*ld
934 = (struct language_gdbarch
*) gdbarch_data (gdbarch
, language_gdbarch_data
);
936 return ld
->arch_info
[la
->la_language
].string_char_type
;
940 language_bool_type (const struct language_defn
*la
,
941 struct gdbarch
*gdbarch
)
943 struct language_gdbarch
*ld
944 = (struct language_gdbarch
*) gdbarch_data (gdbarch
, language_gdbarch_data
);
946 if (ld
->arch_info
[la
->la_language
].bool_type_symbol
)
950 sym
= lookup_symbol (ld
->arch_info
[la
->la_language
].bool_type_symbol
,
951 NULL
, VAR_DOMAIN
, NULL
).symbol
;
954 struct type
*type
= SYMBOL_TYPE (sym
);
956 if (type
&& type
->code () == TYPE_CODE_BOOL
)
961 return ld
->arch_info
[la
->la_language
].bool_type_default
;
964 /* Helper function for primitive type lookup. */
966 static struct type
**
967 language_lookup_primitive_type_1 (const struct language_arch_info
*lai
,
972 for (p
= lai
->primitive_type_vector
; (*p
) != NULL
; p
++)
974 if (strcmp ((*p
)->name (), name
) == 0)
980 /* See language.h. */
983 language_lookup_primitive_type (const struct language_defn
*la
,
984 struct gdbarch
*gdbarch
,
987 struct language_gdbarch
*ld
=
988 (struct language_gdbarch
*) gdbarch_data (gdbarch
, language_gdbarch_data
);
991 typep
= language_lookup_primitive_type_1 (&ld
->arch_info
[la
->la_language
],
998 /* Helper function for type lookup as a symbol.
999 Create the symbol corresponding to type TYPE in language LANG. */
1001 static struct symbol
*
1002 language_alloc_type_symbol (enum language lang
, struct type
*type
)
1004 struct symbol
*symbol
;
1005 struct gdbarch
*gdbarch
;
1007 gdb_assert (!TYPE_OBJFILE_OWNED (type
));
1009 gdbarch
= TYPE_OWNER (type
).gdbarch
;
1010 symbol
= new (gdbarch_obstack (gdbarch
)) struct symbol ();
1012 symbol
->m_name
= type
->name ();
1013 symbol
->set_language (lang
, nullptr);
1014 symbol
->owner
.arch
= gdbarch
;
1015 SYMBOL_OBJFILE_OWNED (symbol
) = 0;
1016 SYMBOL_SECTION (symbol
) = 0;
1017 SYMBOL_TYPE (symbol
) = type
;
1018 SYMBOL_DOMAIN (symbol
) = VAR_DOMAIN
;
1019 SYMBOL_ACLASS_INDEX (symbol
) = LOC_TYPEDEF
;
1024 /* Initialize the primitive type symbols of language LD.
1025 The primitive type vector must have already been initialized. */
1028 language_init_primitive_type_symbols (struct language_arch_info
*lai
,
1029 const struct language_defn
*la
,
1030 struct gdbarch
*gdbarch
)
1034 gdb_assert (lai
->primitive_type_vector
!= NULL
);
1036 for (n
= 0; lai
->primitive_type_vector
[n
] != NULL
; ++n
)
1039 lai
->primitive_type_symbols
1040 = GDBARCH_OBSTACK_CALLOC (gdbarch
, n
+ 1, struct symbol
*);
1042 for (n
= 0; lai
->primitive_type_vector
[n
] != NULL
; ++n
)
1044 lai
->primitive_type_symbols
[n
]
1045 = language_alloc_type_symbol (la
->la_language
,
1046 lai
->primitive_type_vector
[n
]);
1049 /* Note: The result of symbol lookup is normally a symbol *and* the block
1050 it was found in. Builtin types don't live in blocks. We *could* give
1051 them one, but there is no current need so to keep things simple symbol
1052 lookup is extended to allow for BLOCK_FOUND to be NULL. */
1055 /* See language.h. */
1058 language_lookup_primitive_type_as_symbol (const struct language_defn
*la
,
1059 struct gdbarch
*gdbarch
,
1062 struct language_gdbarch
*ld
1063 = (struct language_gdbarch
*) gdbarch_data (gdbarch
, language_gdbarch_data
);
1064 struct language_arch_info
*lai
= &ld
->arch_info
[la
->la_language
];
1065 struct type
**typep
;
1068 if (symbol_lookup_debug
)
1070 fprintf_unfiltered (gdb_stdlog
,
1071 "language_lookup_primitive_type_as_symbol"
1073 la
->la_name
, host_address_to_string (gdbarch
), name
);
1076 typep
= language_lookup_primitive_type_1 (lai
, name
);
1079 if (symbol_lookup_debug
)
1080 fprintf_unfiltered (gdb_stdlog
, " = NULL\n");
1084 /* The set of symbols is lazily initialized. */
1085 if (lai
->primitive_type_symbols
== NULL
)
1086 language_init_primitive_type_symbols (lai
, la
, gdbarch
);
1088 sym
= lai
->primitive_type_symbols
[typep
- lai
->primitive_type_vector
];
1090 if (symbol_lookup_debug
)
1091 fprintf_unfiltered (gdb_stdlog
, " = %s\n", host_address_to_string (sym
));
1095 /* Initialize the language routines. */
1097 void _initialize_language ();
1099 _initialize_language ()
1101 static const char *const type_or_range_names
[]
1102 = { "on", "off", "warn", "auto", NULL
};
1104 static const char *const case_sensitive_names
[]
1105 = { "on", "off", "auto", NULL
};
1107 language_gdbarch_data
1108 = gdbarch_data_register_post_init (language_gdbarch_post_init
);
1110 /* GDB commands for language specific stuff. */
1112 add_basic_prefix_cmd ("check", no_class
,
1113 _("Set the status of the type/range checker."),
1114 &setchecklist
, "set check ", 0, &setlist
);
1115 add_alias_cmd ("c", "check", no_class
, 1, &setlist
);
1116 add_alias_cmd ("ch", "check", no_class
, 1, &setlist
);
1118 add_show_prefix_cmd ("check", no_class
,
1119 _("Show the status of the type/range checker."),
1120 &showchecklist
, "show check ", 0, &showlist
);
1121 add_alias_cmd ("c", "check", no_class
, 1, &showlist
);
1122 add_alias_cmd ("ch", "check", no_class
, 1, &showlist
);
1124 add_setshow_enum_cmd ("range", class_support
, type_or_range_names
,
1126 _("Set range checking (on/warn/off/auto)."),
1127 _("Show range checking (on/warn/off/auto)."),
1128 NULL
, set_range_command
,
1130 &setchecklist
, &showchecklist
);
1132 add_setshow_enum_cmd ("case-sensitive", class_support
, case_sensitive_names
,
1133 &case_sensitive
, _("\
1134 Set case sensitivity in name search (on/off/auto)."), _("\
1135 Show case sensitivity in name search (on/off/auto)."), _("\
1136 For Fortran the default is off; for other languages the default is on."),
1139 &setlist
, &showlist
);
1141 /* In order to call SET_LANGUAGE (below) we need to make sure that
1142 CURRENT_LANGUAGE is not NULL. So first set the language to unknown,
1143 then we can change the language to 'auto'. */
1144 current_language
= language_def (language_unknown
);
1146 add_set_language_command ();
1150 case_sensitive
= "auto";
1152 /* Have the above take effect. */
1153 set_language (language_auto
);