1 /* Multiple source language support for GDB.
3 Copyright (C) 1991-2015 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"
45 #include "cp-support.h"
48 extern void _initialize_language (void);
50 static void unk_lang_error (char *);
52 static int unk_lang_parser (struct parser_state
*);
54 static void show_check (char *, int);
56 static void set_check (char *, int);
58 static void set_range_case (void);
60 static void unk_lang_emit_char (int c
, struct type
*type
,
61 struct ui_file
*stream
, int quoter
);
63 static void unk_lang_printchar (int c
, struct type
*type
,
64 struct ui_file
*stream
);
66 static void unk_lang_value_print (struct value
*, struct ui_file
*,
67 const struct value_print_options
*);
69 static CORE_ADDR
unk_lang_trampoline (struct frame_info
*, CORE_ADDR pc
);
71 /* Forward declaration */
72 extern const struct language_defn unknown_language_defn
;
74 /* The current (default at startup) state of type and range checking.
75 (If the modes are set to "auto", though, these are changed based
76 on the default language at startup, and then again based on the
77 language of the first source file. */
79 enum range_mode range_mode
= range_mode_auto
;
80 enum range_check range_check
= range_check_off
;
81 enum case_mode case_mode
= case_mode_auto
;
82 enum case_sensitivity case_sensitivity
= case_sensitive_on
;
84 /* The current language and language_mode (see language.h). */
86 const struct language_defn
*current_language
= &unknown_language_defn
;
87 enum language_mode language_mode
= language_mode_auto
;
89 /* The language that the user expects to be typing in (the language
90 of main(), or the last language we notified them about, or C). */
92 const struct language_defn
*expected_language
;
94 /* The list of supported languages. The list itself is malloc'd. */
96 static const struct language_defn
**languages
;
97 static unsigned languages_size
;
98 static unsigned languages_allocsize
;
99 #define DEFAULT_ALLOCSIZE 4
101 /* The current values of the "set language/type/range" enum
103 static const char *language
;
104 static const char *type
;
105 static const char *range
;
106 static const char *case_sensitive
;
108 /* Warning issued when current_language and the language of the current
109 frame do not match. */
110 char lang_frame_mismatch_warn
[] =
111 "Warning: the current language does not match this frame.";
113 /* This page contains the functions corresponding to GDB commands
114 and their helpers. */
116 /* Show command. Display a warning if the language set
117 does not match the frame. */
119 show_language_command (struct ui_file
*file
, int from_tty
,
120 struct cmd_list_element
*c
, const char *value
)
122 enum language flang
; /* The language of the frame. */
124 if (language_mode
== language_mode_auto
)
125 fprintf_filtered (gdb_stdout
,
126 _("The current source language is "
127 "\"auto; currently %s\".\n"),
128 current_language
->la_name
);
130 fprintf_filtered (gdb_stdout
,
131 _("The current source language is \"%s\".\n"),
132 current_language
->la_name
);
134 if (has_stack_frames ())
136 struct frame_info
*frame
;
138 frame
= get_selected_frame (NULL
);
139 flang
= get_frame_language (frame
);
140 if (flang
!= language_unknown
141 && language_mode
== language_mode_manual
142 && current_language
->la_language
!= flang
)
143 printf_filtered ("%s\n", lang_frame_mismatch_warn
);
147 /* Set command. Change the current working language. */
149 set_language_command (char *ignore
, int from_tty
, struct cmd_list_element
*c
)
152 enum language flang
= language_unknown
;
154 /* Search the list of languages for a match. */
155 for (i
= 0; i
< languages_size
; i
++)
157 if (strcmp (languages
[i
]->la_name
, language
) == 0)
159 /* Found it! Go into manual mode, and use this language. */
160 if (languages
[i
]->la_language
== language_auto
)
162 /* Enter auto mode. Set to the current frame's language, if
163 known, or fallback to the initial language. */
164 language_mode
= language_mode_auto
;
167 struct frame_info
*frame
;
169 frame
= get_selected_frame (NULL
);
170 flang
= get_frame_language (frame
);
172 CATCH (ex
, RETURN_MASK_ERROR
)
174 flang
= language_unknown
;
178 if (flang
!= language_unknown
)
179 set_language (flang
);
181 set_initial_language ();
182 expected_language
= current_language
;
187 /* Enter manual mode. Set the specified language. */
188 language_mode
= language_mode_manual
;
189 current_language
= languages
[i
];
191 expected_language
= current_language
;
197 internal_error (__FILE__
, __LINE__
,
198 "Couldn't find language `%s' in known languages list.",
202 /* Show command. Display a warning if the range setting does
203 not match the current language. */
205 show_range_command (struct ui_file
*file
, int from_tty
,
206 struct cmd_list_element
*c
, const char *value
)
208 if (range_mode
== range_mode_auto
)
217 case range_check_off
:
220 case range_check_warn
:
224 internal_error (__FILE__
, __LINE__
,
225 "Unrecognized range check setting.");
228 fprintf_filtered (gdb_stdout
,
229 _("Range checking is \"auto; currently %s\".\n"),
233 fprintf_filtered (gdb_stdout
, _("Range checking is \"%s\".\n"),
236 if (range_check
!= current_language
->la_range_check
)
237 warning (_("the current range check setting "
238 "does not match the language.\n"));
241 /* Set command. Change the setting for range checking. */
243 set_range_command (char *ignore
, int from_tty
, struct cmd_list_element
*c
)
245 if (strcmp (range
, "on") == 0)
247 range_check
= range_check_on
;
248 range_mode
= range_mode_manual
;
250 else if (strcmp (range
, "warn") == 0)
252 range_check
= range_check_warn
;
253 range_mode
= range_mode_manual
;
255 else if (strcmp (range
, "off") == 0)
257 range_check
= range_check_off
;
258 range_mode
= range_mode_manual
;
260 else if (strcmp (range
, "auto") == 0)
262 range_mode
= range_mode_auto
;
268 internal_error (__FILE__
, __LINE__
,
269 _("Unrecognized range check setting: \"%s\""), range
);
271 if (range_check
!= current_language
->la_range_check
)
272 warning (_("the current range check setting "
273 "does not match the language.\n"));
276 /* Show command. Display a warning if the case sensitivity setting does
277 not match the current language. */
279 show_case_command (struct ui_file
*file
, int from_tty
,
280 struct cmd_list_element
*c
, const char *value
)
282 if (case_mode
== case_mode_auto
)
286 switch (case_sensitivity
)
288 case case_sensitive_on
:
291 case case_sensitive_off
:
295 internal_error (__FILE__
, __LINE__
,
296 "Unrecognized case-sensitive setting.");
299 fprintf_filtered (gdb_stdout
,
300 _("Case sensitivity in "
301 "name search is \"auto; currently %s\".\n"),
305 fprintf_filtered (gdb_stdout
,
306 _("Case sensitivity in name search is \"%s\".\n"),
309 if (case_sensitivity
!= current_language
->la_case_sensitivity
)
310 warning (_("the current case sensitivity setting does not match "
314 /* Set command. Change the setting for case sensitivity. */
317 set_case_command (char *ignore
, int from_tty
, struct cmd_list_element
*c
)
319 if (strcmp (case_sensitive
, "on") == 0)
321 case_sensitivity
= case_sensitive_on
;
322 case_mode
= case_mode_manual
;
324 else if (strcmp (case_sensitive
, "off") == 0)
326 case_sensitivity
= case_sensitive_off
;
327 case_mode
= case_mode_manual
;
329 else if (strcmp (case_sensitive
, "auto") == 0)
331 case_mode
= case_mode_auto
;
337 internal_error (__FILE__
, __LINE__
,
338 "Unrecognized case-sensitive setting: \"%s\"",
342 if (case_sensitivity
!= current_language
->la_case_sensitivity
)
343 warning (_("the current case sensitivity setting does not match "
347 /* Set the status of range and type checking and case sensitivity based on
348 the current modes and the current language.
349 If SHOW is non-zero, then print out the current language,
350 type and range checking status. */
352 set_range_case (void)
354 if (range_mode
== range_mode_auto
)
355 range_check
= current_language
->la_range_check
;
357 if (case_mode
== case_mode_auto
)
358 case_sensitivity
= current_language
->la_case_sensitivity
;
361 /* Set current language to (enum language) LANG. Returns previous
365 set_language (enum language lang
)
368 enum language prev_language
;
370 prev_language
= current_language
->la_language
;
372 for (i
= 0; i
< languages_size
; i
++)
374 if (languages
[i
]->la_language
== lang
)
376 current_language
= languages
[i
];
382 return prev_language
;
386 /* Print out the current language settings: language, range and
387 type checking. If QUIETLY, print only what has changed. */
390 language_info (int quietly
)
392 if (quietly
&& expected_language
== current_language
)
395 expected_language
= current_language
;
396 printf_unfiltered (_("Current language: %s\n"), language
);
397 show_language_command (NULL
, 1, NULL
, NULL
);
401 printf_unfiltered (_("Range checking: %s\n"), range
);
402 show_range_command (NULL
, 1, NULL
, NULL
);
403 printf_unfiltered (_("Case sensitivity: %s\n"), case_sensitive
);
404 show_case_command (NULL
, 1, NULL
, NULL
);
409 /* Returns non-zero if the value is a pointer type. */
411 pointer_type (struct type
*type
)
413 return TYPE_CODE (type
) == TYPE_CODE_PTR
||
414 TYPE_CODE (type
) == TYPE_CODE_REF
;
418 /* This page contains functions that return info about
419 (struct value) values used in GDB. */
421 /* Returns non-zero if the value VAL represents a true value. */
423 value_true (struct value
*val
)
425 /* It is possible that we should have some sort of error if a non-boolean
426 value is used in this context. Possibly dependent on some kind of
427 "boolean-checking" option like range checking. But it should probably
428 not depend on the language except insofar as is necessary to identify
429 a "boolean" value (i.e. in C using a float, pointer, etc., as a boolean
430 should be an error, probably). */
431 return !value_logical_not (val
);
434 /* This page contains functions for the printing out of
435 error messages that occur during type- and range-
438 /* This is called when a language fails a range-check. The
439 first argument should be a printf()-style format string, and the
440 rest of the arguments should be its arguments. If range_check is
441 range_check_on, an error is printed; if range_check_warn, a warning;
442 otherwise just the message. */
445 range_error (const char *string
,...)
449 va_start (args
, string
);
452 case range_check_warn
:
453 vwarning (string
, args
);
456 verror (string
, args
);
458 case range_check_off
:
459 /* FIXME: cagney/2002-01-30: Should this function print anything
460 when range error is off? */
461 vfprintf_filtered (gdb_stderr
, string
, args
);
462 fprintf_filtered (gdb_stderr
, "\n");
465 internal_error (__FILE__
, __LINE__
, _("bad switch"));
471 /* This page contains miscellaneous functions. */
473 /* Return the language enum for a given language string. */
476 language_enum (char *str
)
480 for (i
= 0; i
< languages_size
; i
++)
481 if (strcmp (languages
[i
]->la_name
, str
) == 0)
482 return languages
[i
]->la_language
;
484 return language_unknown
;
487 /* Return the language struct for a given language enum. */
489 const struct language_defn
*
490 language_def (enum language lang
)
494 for (i
= 0; i
< languages_size
; i
++)
496 if (languages
[i
]->la_language
== lang
)
504 /* Return the language as a string. */
506 language_str (enum language lang
)
510 for (i
= 0; i
< languages_size
; i
++)
512 if (languages
[i
]->la_language
== lang
)
514 return languages
[i
]->la_name
;
521 set_check (char *ignore
, int from_tty
)
524 "\"set check\" must be followed by the name of a check subcommand.\n");
525 help_list (setchecklist
, "set check ", all_commands
, gdb_stdout
);
529 show_check (char *ignore
, int from_tty
)
531 cmd_show_list (showchecklist
, from_tty
, "");
534 /* Add a language to the set of known languages. */
537 add_language (const struct language_defn
*lang
)
539 /* For the "set language" command. */
540 static const char **language_names
= NULL
;
541 /* For the "help set language" command. */
542 char *language_set_doc
= NULL
;
545 struct ui_file
*tmp_stream
;
547 if (lang
->la_magic
!= LANG_MAGIC
)
549 fprintf_unfiltered (gdb_stderr
,
550 "Magic number of %s language struct wrong\n",
552 internal_error (__FILE__
, __LINE__
,
553 _("failed internal consistency check"));
558 languages_allocsize
= DEFAULT_ALLOCSIZE
;
559 languages
= XNEWVEC (const struct language_defn
*, languages_allocsize
);
561 if (languages_size
>= languages_allocsize
)
563 languages_allocsize
*= 2;
564 languages
= (const struct language_defn
**) xrealloc ((char *) languages
,
565 languages_allocsize
* sizeof (*languages
));
567 languages
[languages_size
++] = lang
;
569 /* Build the language names array, to be used as enumeration in the
570 set language" enum command. */
571 language_names
= xrealloc (language_names
,
572 (languages_size
+ 1) * sizeof (const char *));
573 for (i
= 0; i
< languages_size
; ++i
)
574 language_names
[i
] = languages
[i
]->la_name
;
575 language_names
[i
] = NULL
;
577 /* Build the "help set language" docs. */
578 tmp_stream
= mem_fileopen ();
580 fprintf_unfiltered (tmp_stream
,
581 _("Set the current source language.\n"
582 "The currently understood settings are:\n\nlocal or "
583 "auto Automatic setting based on source file\n"));
585 for (i
= 0; i
< languages_size
; ++i
)
587 /* Already dealt with these above. */
588 if (languages
[i
]->la_language
== language_unknown
589 || languages
[i
]->la_language
== language_auto
)
592 /* FIXME: i18n: for now assume that the human-readable name
593 is just a capitalization of the internal name. */
594 fprintf_unfiltered (tmp_stream
, "%-16s Use the %c%s language\n",
595 languages
[i
]->la_name
,
596 /* Capitalize first letter of language
598 toupper (languages
[i
]->la_name
[0]),
599 languages
[i
]->la_name
+ 1);
602 language_set_doc
= ui_file_xstrdup (tmp_stream
, NULL
);
603 ui_file_delete (tmp_stream
);
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
);
614 xfree (language_set_doc
);
617 /* Iterate through all registered languages looking for and calling
618 any non-NULL struct language_defn.skip_trampoline() functions.
619 Return the result from the first that returns non-zero, or 0 if all
622 skip_language_trampoline (struct frame_info
*frame
, CORE_ADDR pc
)
626 for (i
= 0; i
< languages_size
; i
++)
628 if (languages
[i
]->skip_trampoline
)
630 CORE_ADDR real_pc
= (languages
[i
]->skip_trampoline
) (frame
, pc
);
640 /* Return demangled language symbol, or NULL.
641 FIXME: Options are only useful for certain languages and ignored
642 by others, so it would be better to remove them here and have a
643 more flexible demangler for the languages that need it.
644 FIXME: Sometimes the demangler is invoked when we don't know the
645 language, so we can't use this everywhere. */
647 language_demangle (const struct language_defn
*current_language
,
648 const char *mangled
, int options
)
650 if (current_language
!= NULL
&& current_language
->la_demangle
)
651 return current_language
->la_demangle (mangled
, options
);
655 /* Return class name from physname or NULL. */
657 language_class_name_from_physname (const struct language_defn
*lang
,
658 const char *physname
)
660 if (lang
!= NULL
&& lang
->la_class_name_from_physname
)
661 return lang
->la_class_name_from_physname (physname
);
665 /* Return non-zero if TYPE should be passed (and returned) by
666 reference at the language level. */
668 language_pass_by_reference (struct type
*type
)
670 return current_language
->la_pass_by_reference (type
);
673 /* Return zero; by default, types are passed by value at the language
674 level. The target ABI may pass or return some structs by reference
675 independent of this. */
677 default_pass_by_reference (struct type
*type
)
682 /* Return the default string containing the list of characters
683 delimiting words. This is a reasonable default value that
684 most languages should be able to use. */
687 default_word_break_characters (void)
689 return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-";
692 /* Print the index of array elements using the C99 syntax. */
695 default_print_array_index (struct value
*index_value
, struct ui_file
*stream
,
696 const struct value_print_options
*options
)
698 fprintf_filtered (stream
, "[");
699 LA_VALUE_PRINT (index_value
, stream
, options
);
700 fprintf_filtered (stream
, "] = ");
704 default_get_string (struct value
*value
, gdb_byte
**buffer
, int *length
,
705 struct type
**char_type
, const char **charset
)
707 error (_("Getting a string is unsupported in this language."));
710 /* Define the language that is no language. */
713 unk_lang_parser (struct parser_state
*ps
)
719 unk_lang_error (char *msg
)
721 error (_("Attempted to parse an expression with unknown language"));
725 unk_lang_emit_char (int c
, struct type
*type
, struct ui_file
*stream
,
728 error (_("internal error - unimplemented "
729 "function unk_lang_emit_char called."));
733 unk_lang_printchar (int c
, struct type
*type
, struct ui_file
*stream
)
735 error (_("internal error - unimplemented "
736 "function unk_lang_printchar called."));
740 unk_lang_printstr (struct ui_file
*stream
, struct type
*type
,
741 const gdb_byte
*string
, unsigned int length
,
742 const char *encoding
, int force_ellipses
,
743 const struct value_print_options
*options
)
745 error (_("internal error - unimplemented "
746 "function unk_lang_printstr called."));
750 unk_lang_print_type (struct type
*type
, const char *varstring
,
751 struct ui_file
*stream
, int show
, int level
,
752 const struct type_print_options
*flags
)
754 error (_("internal error - unimplemented "
755 "function unk_lang_print_type called."));
759 unk_lang_val_print (struct type
*type
, const gdb_byte
*valaddr
,
760 int embedded_offset
, CORE_ADDR address
,
761 struct ui_file
*stream
, int recurse
,
762 const struct value
*val
,
763 const struct value_print_options
*options
)
765 error (_("internal error - unimplemented "
766 "function unk_lang_val_print called."));
770 unk_lang_value_print (struct value
*val
, struct ui_file
*stream
,
771 const struct value_print_options
*options
)
773 error (_("internal error - unimplemented "
774 "function unk_lang_value_print called."));
777 static CORE_ADDR
unk_lang_trampoline (struct frame_info
*frame
, CORE_ADDR pc
)
782 /* Unknown languages just use the cplus demangler. */
783 static char *unk_lang_demangle (const char *mangled
, int options
)
785 return gdb_demangle (mangled
, options
);
788 static char *unk_lang_class_name (const char *mangled
)
793 static const struct op_print unk_op_print_tab
[] =
795 {NULL
, OP_NULL
, PREC_NULL
, 0}
799 unknown_language_arch_info (struct gdbarch
*gdbarch
,
800 struct language_arch_info
*lai
)
802 lai
->string_char_type
= builtin_type (gdbarch
)->builtin_char
;
803 lai
->bool_type_default
= builtin_type (gdbarch
)->builtin_int
;
804 lai
->primitive_type_vector
= GDBARCH_OBSTACK_CALLOC (gdbarch
, 1,
808 const struct language_defn unknown_language_defn
=
817 &exp_descriptor_standard
,
821 unk_lang_printchar
, /* Print character constant */
824 unk_lang_print_type
, /* Print a type using appropriate syntax */
825 default_print_typedef
, /* Print a typedef using appropriate syntax */
826 unk_lang_val_print
, /* Print a value using appropriate syntax */
827 unk_lang_value_print
, /* Print a top-level value */
828 default_read_var_value
, /* la_read_var_value */
829 unk_lang_trampoline
, /* Language specific skip_trampoline */
830 "this", /* name_of_this */
831 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
832 basic_lookup_transparent_type
,/* lookup_transparent_type */
833 unk_lang_demangle
, /* Language specific symbol demangler */
834 unk_lang_class_name
, /* Language specific
835 class_name_from_physname */
836 unk_op_print_tab
, /* expression operators for printing */
837 1, /* c-style arrays */
838 0, /* String lower bound */
839 default_word_break_characters
,
840 default_make_symbol_completion_list
,
841 unknown_language_arch_info
, /* la_language_arch_info. */
842 default_print_array_index
,
843 default_pass_by_reference
,
845 NULL
, /* la_get_symbol_name_cmp */
846 iterate_over_symbols
,
853 /* These two structs define fake entries for the "local" and "auto"
855 const struct language_defn auto_language_defn
=
864 &exp_descriptor_standard
,
868 unk_lang_printchar
, /* Print character constant */
871 unk_lang_print_type
, /* Print a type using appropriate syntax */
872 default_print_typedef
, /* Print a typedef using appropriate syntax */
873 unk_lang_val_print
, /* Print a value using appropriate syntax */
874 unk_lang_value_print
, /* Print a top-level value */
875 default_read_var_value
, /* la_read_var_value */
876 unk_lang_trampoline
, /* Language specific skip_trampoline */
877 "this", /* name_of_this */
878 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
879 basic_lookup_transparent_type
,/* lookup_transparent_type */
880 unk_lang_demangle
, /* Language specific symbol demangler */
881 unk_lang_class_name
, /* Language specific
882 class_name_from_physname */
883 unk_op_print_tab
, /* expression operators for printing */
884 1, /* c-style arrays */
885 0, /* String lower bound */
886 default_word_break_characters
,
887 default_make_symbol_completion_list
,
888 unknown_language_arch_info
, /* la_language_arch_info. */
889 default_print_array_index
,
890 default_pass_by_reference
,
892 NULL
, /* la_get_symbol_name_cmp */
893 iterate_over_symbols
,
900 const struct language_defn local_language_defn
=
909 &exp_descriptor_standard
,
913 unk_lang_printchar
, /* Print character constant */
916 unk_lang_print_type
, /* Print a type using appropriate syntax */
917 default_print_typedef
, /* Print a typedef using appropriate syntax */
918 unk_lang_val_print
, /* Print a value using appropriate syntax */
919 unk_lang_value_print
, /* Print a top-level value */
920 default_read_var_value
, /* la_read_var_value */
921 unk_lang_trampoline
, /* Language specific skip_trampoline */
922 "this", /* name_of_this */
923 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
924 basic_lookup_transparent_type
,/* lookup_transparent_type */
925 unk_lang_demangle
, /* Language specific symbol demangler */
926 unk_lang_class_name
, /* Language specific
927 class_name_from_physname */
928 unk_op_print_tab
, /* expression operators for printing */
929 1, /* c-style arrays */
930 0, /* String lower bound */
931 default_word_break_characters
,
932 default_make_symbol_completion_list
,
933 unknown_language_arch_info
, /* la_language_arch_info. */
934 default_print_array_index
,
935 default_pass_by_reference
,
937 NULL
, /* la_get_symbol_name_cmp */
938 iterate_over_symbols
,
945 /* Per-architecture language information. */
947 static struct gdbarch_data
*language_gdbarch_data
;
949 struct language_gdbarch
951 /* A vector of per-language per-architecture info. Indexed by "enum
953 struct language_arch_info arch_info
[nr_languages
];
957 language_gdbarch_post_init (struct gdbarch
*gdbarch
)
959 struct language_gdbarch
*l
;
962 l
= GDBARCH_OBSTACK_ZALLOC (gdbarch
, struct language_gdbarch
);
963 for (i
= 0; i
< languages_size
; i
++)
965 if (languages
[i
] != NULL
966 && languages
[i
]->la_language_arch_info
!= NULL
)
967 languages
[i
]->la_language_arch_info
968 (gdbarch
, l
->arch_info
+ languages
[i
]->la_language
);
974 language_string_char_type (const struct language_defn
*la
,
975 struct gdbarch
*gdbarch
)
977 struct language_gdbarch
*ld
= gdbarch_data (gdbarch
,
978 language_gdbarch_data
);
980 return ld
->arch_info
[la
->la_language
].string_char_type
;
984 language_bool_type (const struct language_defn
*la
,
985 struct gdbarch
*gdbarch
)
987 struct language_gdbarch
*ld
= gdbarch_data (gdbarch
,
988 language_gdbarch_data
);
990 if (ld
->arch_info
[la
->la_language
].bool_type_symbol
)
994 sym
= lookup_symbol (ld
->arch_info
[la
->la_language
].bool_type_symbol
,
995 NULL
, VAR_DOMAIN
, NULL
).symbol
;
998 struct type
*type
= SYMBOL_TYPE (sym
);
1000 if (type
&& TYPE_CODE (type
) == TYPE_CODE_BOOL
)
1005 return ld
->arch_info
[la
->la_language
].bool_type_default
;
1008 /* Helper function for primitive type lookup. */
1010 static struct type
**
1011 language_lookup_primitive_type_1 (const struct language_arch_info
*lai
,
1016 for (p
= lai
->primitive_type_vector
; (*p
) != NULL
; p
++)
1018 if (strcmp (TYPE_NAME (*p
), name
) == 0)
1024 /* See language.h. */
1027 language_lookup_primitive_type (const struct language_defn
*la
,
1028 struct gdbarch
*gdbarch
,
1031 struct language_gdbarch
*ld
= gdbarch_data (gdbarch
,
1032 language_gdbarch_data
);
1033 struct type
**typep
;
1035 typep
= language_lookup_primitive_type_1 (&ld
->arch_info
[la
->la_language
],
1042 /* Helper function for type lookup as a symbol.
1043 Create the symbol corresponding to type TYPE in language LANG. */
1045 static struct symbol
*
1046 language_alloc_type_symbol (enum language lang
, struct type
*type
)
1048 struct symbol
*symbol
;
1049 struct gdbarch
*gdbarch
;
1051 gdb_assert (!TYPE_OBJFILE_OWNED (type
));
1053 gdbarch
= TYPE_OWNER (type
).gdbarch
;
1054 symbol
= GDBARCH_OBSTACK_ZALLOC (gdbarch
, struct symbol
);
1056 symbol
->ginfo
.name
= TYPE_NAME (type
);
1057 symbol
->ginfo
.language
= lang
;
1058 symbol
->owner
.arch
= gdbarch
;
1059 SYMBOL_OBJFILE_OWNED (symbol
) = 0;
1060 SYMBOL_TYPE (symbol
) = type
;
1061 SYMBOL_DOMAIN (symbol
) = VAR_DOMAIN
;
1062 SYMBOL_ACLASS_INDEX (symbol
) = LOC_TYPEDEF
;
1067 /* Initialize the primitive type symbols of language LD.
1068 The primitive type vector must have already been initialized. */
1071 language_init_primitive_type_symbols (struct language_arch_info
*lai
,
1072 const struct language_defn
*la
,
1073 struct gdbarch
*gdbarch
)
1076 struct compunit_symtab
*cust
;
1077 struct symtab
*symtab
;
1078 struct block
*static_block
, *global_block
;
1080 gdb_assert (lai
->primitive_type_vector
!= NULL
);
1082 for (n
= 0; lai
->primitive_type_vector
[n
] != NULL
; ++n
)
1085 lai
->primitive_type_symbols
1086 = GDBARCH_OBSTACK_CALLOC (gdbarch
, n
+ 1, struct symbol
*);
1088 for (n
= 0; lai
->primitive_type_vector
[n
] != NULL
; ++n
)
1090 lai
->primitive_type_symbols
[n
]
1091 = language_alloc_type_symbol (la
->la_language
,
1092 lai
->primitive_type_vector
[n
]);
1095 /* Note: The result of symbol lookup is normally a symbol *and* the block
1096 it was found in. Builtin types don't live in blocks. We *could* give
1097 them one, but there is no current need so to keep things simple symbol
1098 lookup is extended to allow for BLOCK_FOUND to be NULL. */
1101 /* See language.h. */
1104 language_lookup_primitive_type_as_symbol (const struct language_defn
*la
,
1105 struct gdbarch
*gdbarch
,
1108 struct language_gdbarch
*ld
= gdbarch_data (gdbarch
,
1109 language_gdbarch_data
);
1110 struct language_arch_info
*lai
= &ld
->arch_info
[la
->la_language
];
1111 struct type
**typep
;
1114 if (symbol_lookup_debug
)
1116 fprintf_unfiltered (gdb_stdlog
,
1117 "language_lookup_primitive_type_as_symbol"
1119 la
->la_name
, host_address_to_string (gdbarch
), name
);
1122 typep
= language_lookup_primitive_type_1 (lai
, name
);
1125 if (symbol_lookup_debug
)
1126 fprintf_unfiltered (gdb_stdlog
, " = NULL\n");
1130 /* The set of symbols is lazily initialized. */
1131 if (lai
->primitive_type_symbols
== NULL
)
1132 language_init_primitive_type_symbols (lai
, la
, gdbarch
);
1134 sym
= lai
->primitive_type_symbols
[typep
- lai
->primitive_type_vector
];
1136 if (symbol_lookup_debug
)
1137 fprintf_unfiltered (gdb_stdlog
, " = %s\n", host_address_to_string (sym
));
1141 /* Initialize the language routines. */
1144 _initialize_language (void)
1146 static const char *const type_or_range_names
[]
1147 = { "on", "off", "warn", "auto", NULL
};
1149 static const char *const case_sensitive_names
[]
1150 = { "on", "off", "auto", NULL
};
1152 language_gdbarch_data
1153 = gdbarch_data_register_post_init (language_gdbarch_post_init
);
1155 /* GDB commands for language specific stuff. */
1157 add_prefix_cmd ("check", no_class
, set_check
,
1158 _("Set the status of the type/range checker."),
1159 &setchecklist
, "set check ", 0, &setlist
);
1160 add_alias_cmd ("c", "check", no_class
, 1, &setlist
);
1161 add_alias_cmd ("ch", "check", no_class
, 1, &setlist
);
1163 add_prefix_cmd ("check", no_class
, show_check
,
1164 _("Show the status of the type/range checker."),
1165 &showchecklist
, "show check ", 0, &showlist
);
1166 add_alias_cmd ("c", "check", no_class
, 1, &showlist
);
1167 add_alias_cmd ("ch", "check", no_class
, 1, &showlist
);
1169 add_setshow_enum_cmd ("range", class_support
, type_or_range_names
,
1171 _("Set range checking. (on/warn/off/auto)"),
1172 _("Show range checking. (on/warn/off/auto)"),
1173 NULL
, set_range_command
,
1175 &setchecklist
, &showchecklist
);
1177 add_setshow_enum_cmd ("case-sensitive", class_support
, case_sensitive_names
,
1178 &case_sensitive
, _("\
1179 Set case sensitivity in name search. (on/off/auto)"), _("\
1180 Show case sensitivity in name search. (on/off/auto)"), _("\
1181 For Fortran the default is off; for other languages the default is on."),
1184 &setlist
, &showlist
);
1186 add_language (&auto_language_defn
);
1187 add_language (&local_language_defn
);
1188 add_language (&unknown_language_defn
);
1190 language
= xstrdup ("auto");
1191 type
= xstrdup ("auto");
1192 range
= xstrdup ("auto");
1193 case_sensitive
= xstrdup ("auto");
1195 /* Have the above take effect. */
1196 set_language (language_auto
);