1 /* Multiple source language support for GDB.
3 Copyright (C) 1991-2017 Free Software Foundation, Inc.
5 Contributed by the Department of Computer Science at the State University
6 of New York at Buffalo.
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 /* This file contains functions that return things that are specific
24 to languages. Each function should examine current_language if necessary,
25 and return the appropriate result. */
27 /* FIXME: Most of these would be better organized as macros which
28 return data out of a "language-specific" struct pointer that is set
29 whenever the working language changes. That would be a lot faster. */
37 #include "expression.h"
41 #include "parser-defs.h"
44 #include "cp-support.h"
47 extern void _initialize_language (void);
49 static void unk_lang_error (char *);
51 static int unk_lang_parser (struct parser_state
*);
53 static void show_check (char *, int);
55 static void set_check (char *, int);
57 static void set_range_case (void);
59 static void unk_lang_emit_char (int c
, struct type
*type
,
60 struct ui_file
*stream
, int quoter
);
62 static void unk_lang_printchar (int c
, struct type
*type
,
63 struct ui_file
*stream
);
65 static void unk_lang_value_print (struct value
*, struct ui_file
*,
66 const struct value_print_options
*);
68 static CORE_ADDR
unk_lang_trampoline (struct frame_info
*, CORE_ADDR pc
);
70 /* Forward declaration */
71 extern const struct language_defn unknown_language_defn
;
73 /* The current (default at startup) state of type and range checking.
74 (If the modes are set to "auto", though, these are changed based
75 on the default language at startup, and then again based on the
76 language of the first source file. */
78 enum range_mode range_mode
= range_mode_auto
;
79 enum range_check range_check
= range_check_off
;
80 enum case_mode case_mode
= case_mode_auto
;
81 enum case_sensitivity case_sensitivity
= case_sensitive_on
;
83 /* The current language and language_mode (see language.h). */
85 const struct language_defn
*current_language
= &unknown_language_defn
;
86 enum language_mode language_mode
= language_mode_auto
;
88 /* The language that the user expects to be typing in (the language
89 of main(), or the last language we notified them about, or C). */
91 const struct language_defn
*expected_language
;
93 /* The list of supported languages. The list itself is malloc'd. */
95 static const struct language_defn
**languages
;
96 static unsigned languages_size
;
97 static unsigned languages_allocsize
;
98 #define DEFAULT_ALLOCSIZE 4
100 /* The current values of the "set language/type/range" enum
102 static const char *language
;
103 static const char *type
;
104 static const char *range
;
105 static const char *case_sensitive
;
107 /* Warning issued when current_language and the language of the current
108 frame do not match. */
109 char lang_frame_mismatch_warn
[] =
110 "Warning: the current language does not match this frame.";
112 /* This page contains the functions corresponding to GDB commands
113 and their helpers. */
115 /* Show command. Display a warning if the language set
116 does not match the frame. */
118 show_language_command (struct ui_file
*file
, int from_tty
,
119 struct cmd_list_element
*c
, const char *value
)
121 enum language flang
; /* The language of the frame. */
123 if (language_mode
== language_mode_auto
)
124 fprintf_filtered (gdb_stdout
,
125 _("The current source language is "
126 "\"auto; currently %s\".\n"),
127 current_language
->la_name
);
129 fprintf_filtered (gdb_stdout
,
130 _("The current source language is \"%s\".\n"),
131 current_language
->la_name
);
133 if (has_stack_frames ())
135 struct frame_info
*frame
;
137 frame
= get_selected_frame (NULL
);
138 flang
= get_frame_language (frame
);
139 if (flang
!= language_unknown
140 && language_mode
== language_mode_manual
141 && current_language
->la_language
!= flang
)
142 printf_filtered ("%s\n", lang_frame_mismatch_warn
);
146 /* Set command. Change the current working language. */
148 set_language_command (char *ignore
, int from_tty
, struct cmd_list_element
*c
)
151 enum language flang
= language_unknown
;
153 /* Search the list of languages for a match. */
154 for (i
= 0; i
< languages_size
; i
++)
156 if (strcmp (languages
[i
]->la_name
, language
) == 0)
158 /* Found it! Go into manual mode, and use this language. */
159 if (languages
[i
]->la_language
== language_auto
)
161 /* Enter auto mode. Set to the current frame's language, if
162 known, or fallback to the initial language. */
163 language_mode
= language_mode_auto
;
166 struct frame_info
*frame
;
168 frame
= get_selected_frame (NULL
);
169 flang
= get_frame_language (frame
);
171 CATCH (ex
, RETURN_MASK_ERROR
)
173 flang
= language_unknown
;
177 if (flang
!= language_unknown
)
178 set_language (flang
);
180 set_initial_language ();
181 expected_language
= current_language
;
186 /* Enter manual mode. Set the specified language. */
187 language_mode
= language_mode_manual
;
188 current_language
= languages
[i
];
190 expected_language
= current_language
;
196 internal_error (__FILE__
, __LINE__
,
197 "Couldn't find language `%s' in known languages list.",
201 /* Show command. Display a warning if the range setting does
202 not match the current language. */
204 show_range_command (struct ui_file
*file
, int from_tty
,
205 struct cmd_list_element
*c
, const char *value
)
207 if (range_mode
== range_mode_auto
)
216 case range_check_off
:
219 case range_check_warn
:
223 internal_error (__FILE__
, __LINE__
,
224 "Unrecognized range check setting.");
227 fprintf_filtered (gdb_stdout
,
228 _("Range checking is \"auto; currently %s\".\n"),
232 fprintf_filtered (gdb_stdout
, _("Range checking is \"%s\".\n"),
235 if (range_check
!= current_language
->la_range_check
)
236 warning (_("the current range check setting "
237 "does not match the language.\n"));
240 /* Set command. Change the setting for range checking. */
242 set_range_command (char *ignore
, int from_tty
, struct cmd_list_element
*c
)
244 if (strcmp (range
, "on") == 0)
246 range_check
= range_check_on
;
247 range_mode
= range_mode_manual
;
249 else if (strcmp (range
, "warn") == 0)
251 range_check
= range_check_warn
;
252 range_mode
= range_mode_manual
;
254 else if (strcmp (range
, "off") == 0)
256 range_check
= range_check_off
;
257 range_mode
= range_mode_manual
;
259 else if (strcmp (range
, "auto") == 0)
261 range_mode
= range_mode_auto
;
267 internal_error (__FILE__
, __LINE__
,
268 _("Unrecognized range check setting: \"%s\""), range
);
270 if (range_check
!= current_language
->la_range_check
)
271 warning (_("the current range check setting "
272 "does not match the language.\n"));
275 /* Show command. Display a warning if the case sensitivity setting does
276 not match the current language. */
278 show_case_command (struct ui_file
*file
, int from_tty
,
279 struct cmd_list_element
*c
, const char *value
)
281 if (case_mode
== case_mode_auto
)
285 switch (case_sensitivity
)
287 case case_sensitive_on
:
290 case case_sensitive_off
:
294 internal_error (__FILE__
, __LINE__
,
295 "Unrecognized case-sensitive setting.");
298 fprintf_filtered (gdb_stdout
,
299 _("Case sensitivity in "
300 "name search is \"auto; currently %s\".\n"),
304 fprintf_filtered (gdb_stdout
,
305 _("Case sensitivity in name search is \"%s\".\n"),
308 if (case_sensitivity
!= current_language
->la_case_sensitivity
)
309 warning (_("the current case sensitivity setting does not match "
313 /* Set command. Change the setting for case sensitivity. */
316 set_case_command (char *ignore
, int from_tty
, struct cmd_list_element
*c
)
318 if (strcmp (case_sensitive
, "on") == 0)
320 case_sensitivity
= case_sensitive_on
;
321 case_mode
= case_mode_manual
;
323 else if (strcmp (case_sensitive
, "off") == 0)
325 case_sensitivity
= case_sensitive_off
;
326 case_mode
= case_mode_manual
;
328 else if (strcmp (case_sensitive
, "auto") == 0)
330 case_mode
= case_mode_auto
;
336 internal_error (__FILE__
, __LINE__
,
337 "Unrecognized case-sensitive setting: \"%s\"",
341 if (case_sensitivity
!= current_language
->la_case_sensitivity
)
342 warning (_("the current case sensitivity setting does not match "
346 /* Set the status of range and type checking and case sensitivity based on
347 the current modes and the current language.
348 If SHOW is non-zero, then print out the current language,
349 type and range checking status. */
351 set_range_case (void)
353 if (range_mode
== range_mode_auto
)
354 range_check
= current_language
->la_range_check
;
356 if (case_mode
== case_mode_auto
)
357 case_sensitivity
= current_language
->la_case_sensitivity
;
360 /* Set current language to (enum language) LANG. Returns previous
364 set_language (enum language lang
)
367 enum language prev_language
;
369 prev_language
= current_language
->la_language
;
371 for (i
= 0; i
< languages_size
; i
++)
373 if (languages
[i
]->la_language
== lang
)
375 current_language
= languages
[i
];
381 return prev_language
;
385 /* Print out the current language settings: language, range and
386 type checking. If QUIETLY, print only what has changed. */
389 language_info (int quietly
)
391 if (quietly
&& expected_language
== current_language
)
394 expected_language
= current_language
;
395 printf_unfiltered (_("Current language: %s\n"), language
);
396 show_language_command (NULL
, 1, NULL
, NULL
);
400 printf_unfiltered (_("Range checking: %s\n"), range
);
401 show_range_command (NULL
, 1, NULL
, NULL
);
402 printf_unfiltered (_("Case sensitivity: %s\n"), case_sensitive
);
403 show_case_command (NULL
, 1, NULL
, NULL
);
408 /* Returns non-zero if the value is a pointer type. */
410 pointer_type (struct type
*type
)
412 return TYPE_CODE (type
) == TYPE_CODE_PTR
|| TYPE_IS_REFERENCE (type
);
416 /* This page contains functions that return info about
417 (struct value) values used in GDB. */
419 /* Returns non-zero if the value VAL represents a true value. */
421 value_true (struct value
*val
)
423 /* It is possible that we should have some sort of error if a non-boolean
424 value is used in this context. Possibly dependent on some kind of
425 "boolean-checking" option like range checking. But it should probably
426 not depend on the language except insofar as is necessary to identify
427 a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean
428 should be an error, probably). */
429 return !value_logical_not (val
);
432 /* This page contains functions for the printing out of
433 error messages that occur during type- and range-
436 /* This is called when a language fails a range-check. The
437 first argument should be a printf()-style format string, and the
438 rest of the arguments should be its arguments. If range_check is
439 range_check_on, an error is printed; if range_check_warn, a warning;
440 otherwise just the message. */
443 range_error (const char *string
,...)
447 va_start (args
, string
);
450 case range_check_warn
:
451 vwarning (string
, args
);
454 verror (string
, args
);
456 case range_check_off
:
457 /* FIXME: cagney/2002-01-30: Should this function print anything
458 when range error is off? */
459 vfprintf_filtered (gdb_stderr
, string
, args
);
460 fprintf_filtered (gdb_stderr
, "\n");
463 internal_error (__FILE__
, __LINE__
, _("bad switch"));
469 /* This page contains miscellaneous functions. */
471 /* Return the language enum for a given language string. */
474 language_enum (char *str
)
478 for (i
= 0; i
< languages_size
; i
++)
479 if (strcmp (languages
[i
]->la_name
, str
) == 0)
480 return languages
[i
]->la_language
;
482 return language_unknown
;
485 /* Return the language struct for a given language enum. */
487 const struct language_defn
*
488 language_def (enum language lang
)
492 for (i
= 0; i
< languages_size
; i
++)
494 if (languages
[i
]->la_language
== lang
)
502 /* Return the language as a string. */
504 language_str (enum language lang
)
508 for (i
= 0; i
< languages_size
; i
++)
510 if (languages
[i
]->la_language
== lang
)
512 return languages
[i
]->la_name
;
519 set_check (char *ignore
, int from_tty
)
522 "\"set check\" must be followed by the name of a check subcommand.\n");
523 help_list (setchecklist
, "set check ", all_commands
, gdb_stdout
);
527 show_check (char *ignore
, int from_tty
)
529 cmd_show_list (showchecklist
, from_tty
, "");
532 /* Add a language to the set of known languages. */
535 add_language (const struct language_defn
*lang
)
537 /* For the "set language" command. */
538 static const char **language_names
= NULL
;
539 /* For the "help set language" command. */
541 if (lang
->la_magic
!= LANG_MAGIC
)
543 fprintf_unfiltered (gdb_stderr
,
544 "Magic number of %s language struct wrong\n",
546 internal_error (__FILE__
, __LINE__
,
547 _("failed internal consistency check"));
552 languages_allocsize
= DEFAULT_ALLOCSIZE
;
553 languages
= XNEWVEC (const struct language_defn
*, languages_allocsize
);
555 if (languages_size
>= languages_allocsize
)
557 languages_allocsize
*= 2;
558 languages
= (const struct language_defn
**) xrealloc ((char *) languages
,
559 languages_allocsize
* sizeof (*languages
));
561 languages
[languages_size
++] = lang
;
563 /* Build the language names array, to be used as enumeration in the
564 set language" enum command. */
565 language_names
= XRESIZEVEC (const char *, language_names
,
568 for (int i
= 0; i
< languages_size
; ++i
)
569 language_names
[i
] = languages
[i
]->la_name
;
570 language_names
[languages_size
] = NULL
;
572 /* Add the filename extensions. */
573 if (lang
->la_filename_extensions
!= NULL
)
577 for (i
= 0; lang
->la_filename_extensions
[i
] != NULL
; ++i
)
578 add_filename_language (lang
->la_filename_extensions
[i
],
582 /* Build the "help set language" docs. */
585 doc
.printf (_("Set the current source language.\n"
586 "The currently understood settings are:\n\nlocal or "
587 "auto Automatic setting based on source file\n"));
589 for (int i
= 0; i
< languages_size
; ++i
)
591 /* Already dealt with these above. */
592 if (languages
[i
]->la_language
== language_unknown
593 || languages
[i
]->la_language
== language_auto
)
596 /* FIXME: i18n: for now assume that the human-readable name is
597 just a capitalization of the internal name. */
598 doc
.printf ("%-16s Use the %c%s language\n",
599 languages
[i
]->la_name
,
600 /* Capitalize first letter of language name. */
601 toupper (languages
[i
]->la_name
[0]),
602 languages
[i
]->la_name
+ 1);
605 add_setshow_enum_cmd ("language", class_support
,
606 (const char **) language_names
,
609 _("Show the current source language."),
610 NULL
, set_language_command
,
611 show_language_command
,
612 &setlist
, &showlist
);
615 /* Iterate through all registered languages looking for and calling
616 any non-NULL struct language_defn.skip_trampoline() functions.
617 Return the result from the first that returns non-zero, or 0 if all
620 skip_language_trampoline (struct frame_info
*frame
, CORE_ADDR pc
)
624 for (i
= 0; i
< languages_size
; i
++)
626 if (languages
[i
]->skip_trampoline
)
628 CORE_ADDR real_pc
= (languages
[i
]->skip_trampoline
) (frame
, pc
);
638 /* Return demangled language symbol, or NULL.
639 FIXME: Options are only useful for certain languages and ignored
640 by others, so it would be better to remove them here and have a
641 more flexible demangler for the languages that need it.
642 FIXME: Sometimes the demangler is invoked when we don't know the
643 language, so we can't use this everywhere. */
645 language_demangle (const struct language_defn
*current_language
,
646 const char *mangled
, int options
)
648 if (current_language
!= NULL
&& current_language
->la_demangle
)
649 return current_language
->la_demangle (mangled
, options
);
653 /* See langauge.h. */
656 language_sniff_from_mangled_name (const struct language_defn
*lang
,
657 const char *mangled
, char **demangled
)
659 gdb_assert (lang
!= NULL
);
661 if (lang
->la_sniff_from_mangled_name
== NULL
)
667 return lang
->la_sniff_from_mangled_name (mangled
, demangled
);
670 /* Return class name from physname or NULL. */
672 language_class_name_from_physname (const struct language_defn
*lang
,
673 const char *physname
)
675 if (lang
!= NULL
&& lang
->la_class_name_from_physname
)
676 return lang
->la_class_name_from_physname (physname
);
680 /* Return non-zero if TYPE should be passed (and returned) by
681 reference at the language level. */
683 language_pass_by_reference (struct type
*type
)
685 return current_language
->la_pass_by_reference (type
);
688 /* Return zero; by default, types are passed by value at the language
689 level. The target ABI may pass or return some structs by reference
690 independent of this. */
692 default_pass_by_reference (struct type
*type
)
697 /* Return the default string containing the list of characters
698 delimiting words. This is a reasonable default value that
699 most languages should be able to use. */
702 default_word_break_characters (void)
704 return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-";
707 /* Print the index of array elements using the C99 syntax. */
710 default_print_array_index (struct value
*index_value
, struct ui_file
*stream
,
711 const struct value_print_options
*options
)
713 fprintf_filtered (stream
, "[");
714 LA_VALUE_PRINT (index_value
, stream
, options
);
715 fprintf_filtered (stream
, "] = ");
719 default_get_string (struct value
*value
, gdb_byte
**buffer
, int *length
,
720 struct type
**char_type
, const char **charset
)
722 error (_("Getting a string is unsupported in this language."));
725 /* Define the language that is no language. */
728 unk_lang_parser (struct parser_state
*ps
)
734 unk_lang_error (char *msg
)
736 error (_("Attempted to parse an expression with unknown language"));
740 unk_lang_emit_char (int c
, struct type
*type
, struct ui_file
*stream
,
743 error (_("internal error - unimplemented "
744 "function unk_lang_emit_char called."));
748 unk_lang_printchar (int c
, struct type
*type
, struct ui_file
*stream
)
750 error (_("internal error - unimplemented "
751 "function unk_lang_printchar called."));
755 unk_lang_printstr (struct ui_file
*stream
, struct type
*type
,
756 const gdb_byte
*string
, unsigned int length
,
757 const char *encoding
, int force_ellipses
,
758 const struct value_print_options
*options
)
760 error (_("internal error - unimplemented "
761 "function unk_lang_printstr called."));
765 unk_lang_print_type (struct type
*type
, const char *varstring
,
766 struct ui_file
*stream
, int show
, int level
,
767 const struct type_print_options
*flags
)
769 error (_("internal error - unimplemented "
770 "function unk_lang_print_type called."));
774 unk_lang_val_print (struct type
*type
,
775 int embedded_offset
, CORE_ADDR address
,
776 struct ui_file
*stream
, int recurse
,
778 const struct value_print_options
*options
)
780 error (_("internal error - unimplemented "
781 "function unk_lang_val_print called."));
785 unk_lang_value_print (struct value
*val
, struct ui_file
*stream
,
786 const struct value_print_options
*options
)
788 error (_("internal error - unimplemented "
789 "function unk_lang_value_print called."));
792 static CORE_ADDR
unk_lang_trampoline (struct frame_info
*frame
, CORE_ADDR pc
)
797 /* Unknown languages just use the cplus demangler. */
798 static char *unk_lang_demangle (const char *mangled
, int options
)
800 return gdb_demangle (mangled
, options
);
803 static char *unk_lang_class_name (const char *mangled
)
808 static const struct op_print unk_op_print_tab
[] =
810 {NULL
, OP_NULL
, PREC_NULL
, 0}
814 unknown_language_arch_info (struct gdbarch
*gdbarch
,
815 struct language_arch_info
*lai
)
817 lai
->string_char_type
= builtin_type (gdbarch
)->builtin_char
;
818 lai
->bool_type_default
= builtin_type (gdbarch
)->builtin_int
;
819 lai
->primitive_type_vector
= GDBARCH_OBSTACK_CALLOC (gdbarch
, 1,
823 const struct language_defn unknown_language_defn
=
833 &exp_descriptor_standard
,
837 unk_lang_printchar
, /* Print character constant */
840 unk_lang_print_type
, /* Print a type using appropriate syntax */
841 default_print_typedef
, /* Print a typedef using appropriate syntax */
842 unk_lang_val_print
, /* Print a value using appropriate syntax */
843 unk_lang_value_print
, /* Print a top-level value */
844 default_read_var_value
, /* la_read_var_value */
845 unk_lang_trampoline
, /* Language specific skip_trampoline */
846 "this", /* name_of_this */
847 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
848 basic_lookup_transparent_type
,/* lookup_transparent_type */
849 unk_lang_demangle
, /* Language specific symbol demangler */
851 unk_lang_class_name
, /* Language specific
852 class_name_from_physname */
853 unk_op_print_tab
, /* expression operators for printing */
854 1, /* c-style arrays */
855 0, /* String lower bound */
856 default_word_break_characters
,
857 default_make_symbol_completion_list
,
858 unknown_language_arch_info
, /* la_language_arch_info. */
859 default_print_array_index
,
860 default_pass_by_reference
,
862 NULL
, /* la_get_symbol_name_cmp */
863 iterate_over_symbols
,
870 /* These two structs define fake entries for the "local" and "auto"
872 const struct language_defn auto_language_defn
=
882 &exp_descriptor_standard
,
886 unk_lang_printchar
, /* Print character constant */
889 unk_lang_print_type
, /* Print a type using appropriate syntax */
890 default_print_typedef
, /* Print a typedef using appropriate syntax */
891 unk_lang_val_print
, /* Print a value using appropriate syntax */
892 unk_lang_value_print
, /* Print a top-level value */
893 default_read_var_value
, /* la_read_var_value */
894 unk_lang_trampoline
, /* Language specific skip_trampoline */
895 "this", /* name_of_this */
896 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
897 basic_lookup_transparent_type
,/* lookup_transparent_type */
898 unk_lang_demangle
, /* Language specific symbol demangler */
900 unk_lang_class_name
, /* Language specific
901 class_name_from_physname */
902 unk_op_print_tab
, /* expression operators for printing */
903 1, /* c-style arrays */
904 0, /* String lower bound */
905 default_word_break_characters
,
906 default_make_symbol_completion_list
,
907 unknown_language_arch_info
, /* la_language_arch_info. */
908 default_print_array_index
,
909 default_pass_by_reference
,
911 NULL
, /* la_get_symbol_name_cmp */
912 iterate_over_symbols
,
919 const struct language_defn local_language_defn
=
929 &exp_descriptor_standard
,
933 unk_lang_printchar
, /* Print character constant */
936 unk_lang_print_type
, /* Print a type using appropriate syntax */
937 default_print_typedef
, /* Print a typedef using appropriate syntax */
938 unk_lang_val_print
, /* Print a value using appropriate syntax */
939 unk_lang_value_print
, /* Print a top-level value */
940 default_read_var_value
, /* la_read_var_value */
941 unk_lang_trampoline
, /* Language specific skip_trampoline */
942 "this", /* name_of_this */
943 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
944 basic_lookup_transparent_type
,/* lookup_transparent_type */
945 unk_lang_demangle
, /* Language specific symbol demangler */
947 unk_lang_class_name
, /* Language specific
948 class_name_from_physname */
949 unk_op_print_tab
, /* expression operators for printing */
950 1, /* c-style arrays */
951 0, /* String lower bound */
952 default_word_break_characters
,
953 default_make_symbol_completion_list
,
954 unknown_language_arch_info
, /* la_language_arch_info. */
955 default_print_array_index
,
956 default_pass_by_reference
,
958 NULL
, /* la_get_symbol_name_cmp */
959 iterate_over_symbols
,
966 /* Per-architecture language information. */
968 static struct gdbarch_data
*language_gdbarch_data
;
970 struct language_gdbarch
972 /* A vector of per-language per-architecture info. Indexed by "enum
974 struct language_arch_info arch_info
[nr_languages
];
978 language_gdbarch_post_init (struct gdbarch
*gdbarch
)
980 struct language_gdbarch
*l
;
983 l
= GDBARCH_OBSTACK_ZALLOC (gdbarch
, struct language_gdbarch
);
984 for (i
= 0; i
< languages_size
; i
++)
986 if (languages
[i
] != NULL
987 && languages
[i
]->la_language_arch_info
!= NULL
)
988 languages
[i
]->la_language_arch_info
989 (gdbarch
, l
->arch_info
+ languages
[i
]->la_language
);
995 language_string_char_type (const struct language_defn
*la
,
996 struct gdbarch
*gdbarch
)
998 struct language_gdbarch
*ld
999 = (struct language_gdbarch
*) gdbarch_data (gdbarch
, language_gdbarch_data
);
1001 return ld
->arch_info
[la
->la_language
].string_char_type
;
1005 language_bool_type (const struct language_defn
*la
,
1006 struct gdbarch
*gdbarch
)
1008 struct language_gdbarch
*ld
1009 = (struct language_gdbarch
*) gdbarch_data (gdbarch
, language_gdbarch_data
);
1011 if (ld
->arch_info
[la
->la_language
].bool_type_symbol
)
1015 sym
= lookup_symbol (ld
->arch_info
[la
->la_language
].bool_type_symbol
,
1016 NULL
, VAR_DOMAIN
, NULL
).symbol
;
1019 struct type
*type
= SYMBOL_TYPE (sym
);
1021 if (type
&& TYPE_CODE (type
) == TYPE_CODE_BOOL
)
1026 return ld
->arch_info
[la
->la_language
].bool_type_default
;
1029 /* Helper function for primitive type lookup. */
1031 static struct type
**
1032 language_lookup_primitive_type_1 (const struct language_arch_info
*lai
,
1037 for (p
= lai
->primitive_type_vector
; (*p
) != NULL
; p
++)
1039 if (strcmp (TYPE_NAME (*p
), name
) == 0)
1045 /* See language.h. */
1048 language_lookup_primitive_type (const struct language_defn
*la
,
1049 struct gdbarch
*gdbarch
,
1052 struct language_gdbarch
*ld
=
1053 (struct language_gdbarch
*) gdbarch_data (gdbarch
, language_gdbarch_data
);
1054 struct type
**typep
;
1056 typep
= language_lookup_primitive_type_1 (&ld
->arch_info
[la
->la_language
],
1063 /* Helper function for type lookup as a symbol.
1064 Create the symbol corresponding to type TYPE in language LANG. */
1066 static struct symbol
*
1067 language_alloc_type_symbol (enum language lang
, struct type
*type
)
1069 struct symbol
*symbol
;
1070 struct gdbarch
*gdbarch
;
1072 gdb_assert (!TYPE_OBJFILE_OWNED (type
));
1074 gdbarch
= TYPE_OWNER (type
).gdbarch
;
1075 symbol
= GDBARCH_OBSTACK_ZALLOC (gdbarch
, struct symbol
);
1077 symbol
->ginfo
.name
= TYPE_NAME (type
);
1078 symbol
->ginfo
.language
= lang
;
1079 symbol
->owner
.arch
= gdbarch
;
1080 SYMBOL_OBJFILE_OWNED (symbol
) = 0;
1081 SYMBOL_TYPE (symbol
) = type
;
1082 SYMBOL_DOMAIN (symbol
) = VAR_DOMAIN
;
1083 SYMBOL_ACLASS_INDEX (symbol
) = LOC_TYPEDEF
;
1088 /* Initialize the primitive type symbols of language LD.
1089 The primitive type vector must have already been initialized. */
1092 language_init_primitive_type_symbols (struct language_arch_info
*lai
,
1093 const struct language_defn
*la
,
1094 struct gdbarch
*gdbarch
)
1098 gdb_assert (lai
->primitive_type_vector
!= NULL
);
1100 for (n
= 0; lai
->primitive_type_vector
[n
] != NULL
; ++n
)
1103 lai
->primitive_type_symbols
1104 = GDBARCH_OBSTACK_CALLOC (gdbarch
, n
+ 1, struct symbol
*);
1106 for (n
= 0; lai
->primitive_type_vector
[n
] != NULL
; ++n
)
1108 lai
->primitive_type_symbols
[n
]
1109 = language_alloc_type_symbol (la
->la_language
,
1110 lai
->primitive_type_vector
[n
]);
1113 /* Note: The result of symbol lookup is normally a symbol *and* the block
1114 it was found in. Builtin types don't live in blocks. We *could* give
1115 them one, but there is no current need so to keep things simple symbol
1116 lookup is extended to allow for BLOCK_FOUND to be NULL. */
1119 /* See language.h. */
1122 language_lookup_primitive_type_as_symbol (const struct language_defn
*la
,
1123 struct gdbarch
*gdbarch
,
1126 struct language_gdbarch
*ld
1127 = (struct language_gdbarch
*) gdbarch_data (gdbarch
, language_gdbarch_data
);
1128 struct language_arch_info
*lai
= &ld
->arch_info
[la
->la_language
];
1129 struct type
**typep
;
1132 if (symbol_lookup_debug
)
1134 fprintf_unfiltered (gdb_stdlog
,
1135 "language_lookup_primitive_type_as_symbol"
1137 la
->la_name
, host_address_to_string (gdbarch
), name
);
1140 typep
= language_lookup_primitive_type_1 (lai
, name
);
1143 if (symbol_lookup_debug
)
1144 fprintf_unfiltered (gdb_stdlog
, " = NULL\n");
1148 /* The set of symbols is lazily initialized. */
1149 if (lai
->primitive_type_symbols
== NULL
)
1150 language_init_primitive_type_symbols (lai
, la
, gdbarch
);
1152 sym
= lai
->primitive_type_symbols
[typep
- lai
->primitive_type_vector
];
1154 if (symbol_lookup_debug
)
1155 fprintf_unfiltered (gdb_stdlog
, " = %s\n", host_address_to_string (sym
));
1159 /* Initialize the language routines. */
1162 _initialize_language (void)
1164 static const char *const type_or_range_names
[]
1165 = { "on", "off", "warn", "auto", NULL
};
1167 static const char *const case_sensitive_names
[]
1168 = { "on", "off", "auto", NULL
};
1170 language_gdbarch_data
1171 = gdbarch_data_register_post_init (language_gdbarch_post_init
);
1173 /* GDB commands for language specific stuff. */
1175 add_prefix_cmd ("check", no_class
, set_check
,
1176 _("Set the status of the type/range checker."),
1177 &setchecklist
, "set check ", 0, &setlist
);
1178 add_alias_cmd ("c", "check", no_class
, 1, &setlist
);
1179 add_alias_cmd ("ch", "check", no_class
, 1, &setlist
);
1181 add_prefix_cmd ("check", no_class
, show_check
,
1182 _("Show the status of the type/range checker."),
1183 &showchecklist
, "show check ", 0, &showlist
);
1184 add_alias_cmd ("c", "check", no_class
, 1, &showlist
);
1185 add_alias_cmd ("ch", "check", no_class
, 1, &showlist
);
1187 add_setshow_enum_cmd ("range", class_support
, type_or_range_names
,
1189 _("Set range checking. (on/warn/off/auto)"),
1190 _("Show range checking. (on/warn/off/auto)"),
1191 NULL
, set_range_command
,
1193 &setchecklist
, &showchecklist
);
1195 add_setshow_enum_cmd ("case-sensitive", class_support
, case_sensitive_names
,
1196 &case_sensitive
, _("\
1197 Set case sensitivity in name search. (on/off/auto)"), _("\
1198 Show case sensitivity in name search. (on/off/auto)"), _("\
1199 For Fortran the default is off; for other languages the default is on."),
1202 &setlist
, &showlist
);
1204 add_language (&auto_language_defn
);
1205 add_language (&local_language_defn
);
1206 add_language (&unknown_language_defn
);
1208 language
= xstrdup ("auto");
1209 type
= xstrdup ("auto");
1210 range
= xstrdup ("auto");
1211 case_sensitive
= xstrdup ("auto");
1213 /* Have the above take effect. */
1214 set_language (language_auto
);