1 /* Multiple source language support for GDB.
3 Copyright (C) 1991-2016 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
= XRESIZEVEC (const char *, language_names
,
574 for (i
= 0; i
< languages_size
; ++i
)
575 language_names
[i
] = languages
[i
]->la_name
;
576 language_names
[i
] = NULL
;
578 /* Add the filename extensions. */
579 if (lang
->la_filename_extensions
!= NULL
)
583 for (i
= 0; lang
->la_filename_extensions
[i
] != NULL
; ++i
)
584 add_filename_language (lang
->la_filename_extensions
[i
],
588 /* Build the "help set language" docs. */
589 tmp_stream
= mem_fileopen ();
591 fprintf_unfiltered (tmp_stream
,
592 _("Set the current source language.\n"
593 "The currently understood settings are:\n\nlocal or "
594 "auto Automatic setting based on source file\n"));
596 for (i
= 0; i
< languages_size
; ++i
)
598 /* Already dealt with these above. */
599 if (languages
[i
]->la_language
== language_unknown
600 || languages
[i
]->la_language
== language_auto
)
603 /* FIXME: i18n: for now assume that the human-readable name
604 is just a capitalization of the internal name. */
605 fprintf_unfiltered (tmp_stream
, "%-16s Use the %c%s language\n",
606 languages
[i
]->la_name
,
607 /* Capitalize first letter of language
609 toupper (languages
[i
]->la_name
[0]),
610 languages
[i
]->la_name
+ 1);
613 language_set_doc
= ui_file_xstrdup (tmp_stream
, NULL
);
614 ui_file_delete (tmp_stream
);
616 add_setshow_enum_cmd ("language", class_support
,
617 (const char **) language_names
,
620 _("Show the current source language."),
621 NULL
, set_language_command
,
622 show_language_command
,
623 &setlist
, &showlist
);
625 xfree (language_set_doc
);
628 /* Iterate through all registered languages looking for and calling
629 any non-NULL struct language_defn.skip_trampoline() functions.
630 Return the result from the first that returns non-zero, or 0 if all
633 skip_language_trampoline (struct frame_info
*frame
, CORE_ADDR pc
)
637 for (i
= 0; i
< languages_size
; i
++)
639 if (languages
[i
]->skip_trampoline
)
641 CORE_ADDR real_pc
= (languages
[i
]->skip_trampoline
) (frame
, pc
);
651 /* Return demangled language symbol, or NULL.
652 FIXME: Options are only useful for certain languages and ignored
653 by others, so it would be better to remove them here and have a
654 more flexible demangler for the languages that need it.
655 FIXME: Sometimes the demangler is invoked when we don't know the
656 language, so we can't use this everywhere. */
658 language_demangle (const struct language_defn
*current_language
,
659 const char *mangled
, int options
)
661 if (current_language
!= NULL
&& current_language
->la_demangle
)
662 return current_language
->la_demangle (mangled
, options
);
666 /* Return class name from physname or NULL. */
668 language_class_name_from_physname (const struct language_defn
*lang
,
669 const char *physname
)
671 if (lang
!= NULL
&& lang
->la_class_name_from_physname
)
672 return lang
->la_class_name_from_physname (physname
);
676 /* Return non-zero if TYPE should be passed (and returned) by
677 reference at the language level. */
679 language_pass_by_reference (struct type
*type
)
681 return current_language
->la_pass_by_reference (type
);
684 /* Return zero; by default, types are passed by value at the language
685 level. The target ABI may pass or return some structs by reference
686 independent of this. */
688 default_pass_by_reference (struct type
*type
)
693 /* Return the default string containing the list of characters
694 delimiting words. This is a reasonable default value that
695 most languages should be able to use. */
698 default_word_break_characters (void)
700 return " \t\n!@#$%^&*()+=|~`}{[]\"';:?/>.<,-";
703 /* Print the index of array elements using the C99 syntax. */
706 default_print_array_index (struct value
*index_value
, struct ui_file
*stream
,
707 const struct value_print_options
*options
)
709 fprintf_filtered (stream
, "[");
710 LA_VALUE_PRINT (index_value
, stream
, options
);
711 fprintf_filtered (stream
, "] = ");
715 default_get_string (struct value
*value
, gdb_byte
**buffer
, int *length
,
716 struct type
**char_type
, const char **charset
)
718 error (_("Getting a string is unsupported in this language."));
721 /* Define the language that is no language. */
724 unk_lang_parser (struct parser_state
*ps
)
730 unk_lang_error (char *msg
)
732 error (_("Attempted to parse an expression with unknown language"));
736 unk_lang_emit_char (int c
, struct type
*type
, struct ui_file
*stream
,
739 error (_("internal error - unimplemented "
740 "function unk_lang_emit_char called."));
744 unk_lang_printchar (int c
, struct type
*type
, struct ui_file
*stream
)
746 error (_("internal error - unimplemented "
747 "function unk_lang_printchar called."));
751 unk_lang_printstr (struct ui_file
*stream
, struct type
*type
,
752 const gdb_byte
*string
, unsigned int length
,
753 const char *encoding
, int force_ellipses
,
754 const struct value_print_options
*options
)
756 error (_("internal error - unimplemented "
757 "function unk_lang_printstr called."));
761 unk_lang_print_type (struct type
*type
, const char *varstring
,
762 struct ui_file
*stream
, int show
, int level
,
763 const struct type_print_options
*flags
)
765 error (_("internal error - unimplemented "
766 "function unk_lang_print_type called."));
770 unk_lang_val_print (struct type
*type
, const gdb_byte
*valaddr
,
771 int embedded_offset
, CORE_ADDR address
,
772 struct ui_file
*stream
, int recurse
,
773 const struct value
*val
,
774 const struct value_print_options
*options
)
776 error (_("internal error - unimplemented "
777 "function unk_lang_val_print called."));
781 unk_lang_value_print (struct value
*val
, struct ui_file
*stream
,
782 const struct value_print_options
*options
)
784 error (_("internal error - unimplemented "
785 "function unk_lang_value_print called."));
788 static CORE_ADDR
unk_lang_trampoline (struct frame_info
*frame
, CORE_ADDR pc
)
793 /* Unknown languages just use the cplus demangler. */
794 static char *unk_lang_demangle (const char *mangled
, int options
)
796 return gdb_demangle (mangled
, options
);
799 static char *unk_lang_class_name (const char *mangled
)
804 static const struct op_print unk_op_print_tab
[] =
806 {NULL
, OP_NULL
, PREC_NULL
, 0}
810 unknown_language_arch_info (struct gdbarch
*gdbarch
,
811 struct language_arch_info
*lai
)
813 lai
->string_char_type
= builtin_type (gdbarch
)->builtin_char
;
814 lai
->bool_type_default
= builtin_type (gdbarch
)->builtin_int
;
815 lai
->primitive_type_vector
= GDBARCH_OBSTACK_CALLOC (gdbarch
, 1,
819 const struct language_defn unknown_language_defn
=
829 &exp_descriptor_standard
,
833 unk_lang_printchar
, /* Print character constant */
836 unk_lang_print_type
, /* Print a type using appropriate syntax */
837 default_print_typedef
, /* Print a typedef using appropriate syntax */
838 unk_lang_val_print
, /* Print a value using appropriate syntax */
839 unk_lang_value_print
, /* Print a top-level value */
840 default_read_var_value
, /* la_read_var_value */
841 unk_lang_trampoline
, /* Language specific skip_trampoline */
842 "this", /* name_of_this */
843 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
844 basic_lookup_transparent_type
,/* lookup_transparent_type */
845 unk_lang_demangle
, /* Language specific symbol demangler */
846 unk_lang_class_name
, /* Language specific
847 class_name_from_physname */
848 unk_op_print_tab
, /* expression operators for printing */
849 1, /* c-style arrays */
850 0, /* String lower bound */
851 default_word_break_characters
,
852 default_make_symbol_completion_list
,
853 unknown_language_arch_info
, /* la_language_arch_info. */
854 default_print_array_index
,
855 default_pass_by_reference
,
857 NULL
, /* la_get_symbol_name_cmp */
858 iterate_over_symbols
,
865 /* These two structs define fake entries for the "local" and "auto"
867 const struct language_defn auto_language_defn
=
877 &exp_descriptor_standard
,
881 unk_lang_printchar
, /* Print character constant */
884 unk_lang_print_type
, /* Print a type using appropriate syntax */
885 default_print_typedef
, /* Print a typedef using appropriate syntax */
886 unk_lang_val_print
, /* Print a value using appropriate syntax */
887 unk_lang_value_print
, /* Print a top-level value */
888 default_read_var_value
, /* la_read_var_value */
889 unk_lang_trampoline
, /* Language specific skip_trampoline */
890 "this", /* name_of_this */
891 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
892 basic_lookup_transparent_type
,/* lookup_transparent_type */
893 unk_lang_demangle
, /* Language specific symbol demangler */
894 unk_lang_class_name
, /* Language specific
895 class_name_from_physname */
896 unk_op_print_tab
, /* expression operators for printing */
897 1, /* c-style arrays */
898 0, /* String lower bound */
899 default_word_break_characters
,
900 default_make_symbol_completion_list
,
901 unknown_language_arch_info
, /* la_language_arch_info. */
902 default_print_array_index
,
903 default_pass_by_reference
,
905 NULL
, /* la_get_symbol_name_cmp */
906 iterate_over_symbols
,
913 const struct language_defn local_language_defn
=
923 &exp_descriptor_standard
,
927 unk_lang_printchar
, /* Print character constant */
930 unk_lang_print_type
, /* Print a type using appropriate syntax */
931 default_print_typedef
, /* Print a typedef using appropriate syntax */
932 unk_lang_val_print
, /* Print a value using appropriate syntax */
933 unk_lang_value_print
, /* Print a top-level value */
934 default_read_var_value
, /* la_read_var_value */
935 unk_lang_trampoline
, /* Language specific skip_trampoline */
936 "this", /* name_of_this */
937 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
938 basic_lookup_transparent_type
,/* lookup_transparent_type */
939 unk_lang_demangle
, /* Language specific symbol demangler */
940 unk_lang_class_name
, /* Language specific
941 class_name_from_physname */
942 unk_op_print_tab
, /* expression operators for printing */
943 1, /* c-style arrays */
944 0, /* String lower bound */
945 default_word_break_characters
,
946 default_make_symbol_completion_list
,
947 unknown_language_arch_info
, /* la_language_arch_info. */
948 default_print_array_index
,
949 default_pass_by_reference
,
951 NULL
, /* la_get_symbol_name_cmp */
952 iterate_over_symbols
,
959 /* Per-architecture language information. */
961 static struct gdbarch_data
*language_gdbarch_data
;
963 struct language_gdbarch
965 /* A vector of per-language per-architecture info. Indexed by "enum
967 struct language_arch_info arch_info
[nr_languages
];
971 language_gdbarch_post_init (struct gdbarch
*gdbarch
)
973 struct language_gdbarch
*l
;
976 l
= GDBARCH_OBSTACK_ZALLOC (gdbarch
, struct language_gdbarch
);
977 for (i
= 0; i
< languages_size
; i
++)
979 if (languages
[i
] != NULL
980 && languages
[i
]->la_language_arch_info
!= NULL
)
981 languages
[i
]->la_language_arch_info
982 (gdbarch
, l
->arch_info
+ languages
[i
]->la_language
);
988 language_string_char_type (const struct language_defn
*la
,
989 struct gdbarch
*gdbarch
)
991 struct language_gdbarch
*ld
992 = (struct language_gdbarch
*) gdbarch_data (gdbarch
, language_gdbarch_data
);
994 return ld
->arch_info
[la
->la_language
].string_char_type
;
998 language_bool_type (const struct language_defn
*la
,
999 struct gdbarch
*gdbarch
)
1001 struct language_gdbarch
*ld
1002 = (struct language_gdbarch
*) gdbarch_data (gdbarch
, language_gdbarch_data
);
1004 if (ld
->arch_info
[la
->la_language
].bool_type_symbol
)
1008 sym
= lookup_symbol (ld
->arch_info
[la
->la_language
].bool_type_symbol
,
1009 NULL
, VAR_DOMAIN
, NULL
).symbol
;
1012 struct type
*type
= SYMBOL_TYPE (sym
);
1014 if (type
&& TYPE_CODE (type
) == TYPE_CODE_BOOL
)
1019 return ld
->arch_info
[la
->la_language
].bool_type_default
;
1022 /* Helper function for primitive type lookup. */
1024 static struct type
**
1025 language_lookup_primitive_type_1 (const struct language_arch_info
*lai
,
1030 for (p
= lai
->primitive_type_vector
; (*p
) != NULL
; p
++)
1032 if (strcmp (TYPE_NAME (*p
), name
) == 0)
1038 /* See language.h. */
1041 language_lookup_primitive_type (const struct language_defn
*la
,
1042 struct gdbarch
*gdbarch
,
1045 struct language_gdbarch
*ld
=
1046 (struct language_gdbarch
*) gdbarch_data (gdbarch
, language_gdbarch_data
);
1047 struct type
**typep
;
1049 typep
= language_lookup_primitive_type_1 (&ld
->arch_info
[la
->la_language
],
1056 /* Helper function for type lookup as a symbol.
1057 Create the symbol corresponding to type TYPE in language LANG. */
1059 static struct symbol
*
1060 language_alloc_type_symbol (enum language lang
, struct type
*type
)
1062 struct symbol
*symbol
;
1063 struct gdbarch
*gdbarch
;
1065 gdb_assert (!TYPE_OBJFILE_OWNED (type
));
1067 gdbarch
= TYPE_OWNER (type
).gdbarch
;
1068 symbol
= GDBARCH_OBSTACK_ZALLOC (gdbarch
, struct symbol
);
1070 symbol
->ginfo
.name
= TYPE_NAME (type
);
1071 symbol
->ginfo
.language
= lang
;
1072 symbol
->owner
.arch
= gdbarch
;
1073 SYMBOL_OBJFILE_OWNED (symbol
) = 0;
1074 SYMBOL_TYPE (symbol
) = type
;
1075 SYMBOL_DOMAIN (symbol
) = VAR_DOMAIN
;
1076 SYMBOL_ACLASS_INDEX (symbol
) = LOC_TYPEDEF
;
1081 /* Initialize the primitive type symbols of language LD.
1082 The primitive type vector must have already been initialized. */
1085 language_init_primitive_type_symbols (struct language_arch_info
*lai
,
1086 const struct language_defn
*la
,
1087 struct gdbarch
*gdbarch
)
1091 gdb_assert (lai
->primitive_type_vector
!= NULL
);
1093 for (n
= 0; lai
->primitive_type_vector
[n
] != NULL
; ++n
)
1096 lai
->primitive_type_symbols
1097 = GDBARCH_OBSTACK_CALLOC (gdbarch
, n
+ 1, struct symbol
*);
1099 for (n
= 0; lai
->primitive_type_vector
[n
] != NULL
; ++n
)
1101 lai
->primitive_type_symbols
[n
]
1102 = language_alloc_type_symbol (la
->la_language
,
1103 lai
->primitive_type_vector
[n
]);
1106 /* Note: The result of symbol lookup is normally a symbol *and* the block
1107 it was found in. Builtin types don't live in blocks. We *could* give
1108 them one, but there is no current need so to keep things simple symbol
1109 lookup is extended to allow for BLOCK_FOUND to be NULL. */
1112 /* See language.h. */
1115 language_lookup_primitive_type_as_symbol (const struct language_defn
*la
,
1116 struct gdbarch
*gdbarch
,
1119 struct language_gdbarch
*ld
1120 = (struct language_gdbarch
*) gdbarch_data (gdbarch
, language_gdbarch_data
);
1121 struct language_arch_info
*lai
= &ld
->arch_info
[la
->la_language
];
1122 struct type
**typep
;
1125 if (symbol_lookup_debug
)
1127 fprintf_unfiltered (gdb_stdlog
,
1128 "language_lookup_primitive_type_as_symbol"
1130 la
->la_name
, host_address_to_string (gdbarch
), name
);
1133 typep
= language_lookup_primitive_type_1 (lai
, name
);
1136 if (symbol_lookup_debug
)
1137 fprintf_unfiltered (gdb_stdlog
, " = NULL\n");
1141 /* The set of symbols is lazily initialized. */
1142 if (lai
->primitive_type_symbols
== NULL
)
1143 language_init_primitive_type_symbols (lai
, la
, gdbarch
);
1145 sym
= lai
->primitive_type_symbols
[typep
- lai
->primitive_type_vector
];
1147 if (symbol_lookup_debug
)
1148 fprintf_unfiltered (gdb_stdlog
, " = %s\n", host_address_to_string (sym
));
1152 /* Initialize the language routines. */
1155 _initialize_language (void)
1157 static const char *const type_or_range_names
[]
1158 = { "on", "off", "warn", "auto", NULL
};
1160 static const char *const case_sensitive_names
[]
1161 = { "on", "off", "auto", NULL
};
1163 language_gdbarch_data
1164 = gdbarch_data_register_post_init (language_gdbarch_post_init
);
1166 /* GDB commands for language specific stuff. */
1168 add_prefix_cmd ("check", no_class
, set_check
,
1169 _("Set the status of the type/range checker."),
1170 &setchecklist
, "set check ", 0, &setlist
);
1171 add_alias_cmd ("c", "check", no_class
, 1, &setlist
);
1172 add_alias_cmd ("ch", "check", no_class
, 1, &setlist
);
1174 add_prefix_cmd ("check", no_class
, show_check
,
1175 _("Show the status of the type/range checker."),
1176 &showchecklist
, "show check ", 0, &showlist
);
1177 add_alias_cmd ("c", "check", no_class
, 1, &showlist
);
1178 add_alias_cmd ("ch", "check", no_class
, 1, &showlist
);
1180 add_setshow_enum_cmd ("range", class_support
, type_or_range_names
,
1182 _("Set range checking. (on/warn/off/auto)"),
1183 _("Show range checking. (on/warn/off/auto)"),
1184 NULL
, set_range_command
,
1186 &setchecklist
, &showchecklist
);
1188 add_setshow_enum_cmd ("case-sensitive", class_support
, case_sensitive_names
,
1189 &case_sensitive
, _("\
1190 Set case sensitivity in name search. (on/off/auto)"), _("\
1191 Show case sensitivity in name search. (on/off/auto)"), _("\
1192 For Fortran the default is off; for other languages the default is on."),
1195 &setlist
, &showlist
);
1197 add_language (&auto_language_defn
);
1198 add_language (&local_language_defn
);
1199 add_language (&unknown_language_defn
);
1201 language
= xstrdup ("auto");
1202 type
= xstrdup ("auto");
1203 range
= xstrdup ("auto");
1204 case_sensitive
= xstrdup ("auto");
1206 /* Have the above take effect. */
1207 set_language (language_auto
);