[binutils.git] / gdb / language.h

/* Source-language-related definitions for GDB.
   Copyright 1991, 1992 Free Software Foundation, Inc.
   Contributed by the Department of Computer Science at the State University
   of New York at Buffalo.

This file is part of GDB.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#if !defined (LANGUAGE_H)
#define LANGUAGE_H 1

#ifdef __STDC__		/* Forward decls for prototypes */
struct value;
struct objfile;
/* enum exp_opcode;	ANSI's `wisdom' didn't include forward enum decls. */
#endif

/* This used to be included to configure GDB for one or more specific
   languages.  Now it is shortcutted to configure for all of them.  FIXME.  */
/* #include "lang_def.h" */
#define	_LANG_c
#define	_LANG_m2
/* start-sanitize-chill */
#define	_LANG_chill
/* end-sanitize-chill */

/* range_mode ==
   range_mode_auto:   range_check set automatically to default of language.
   range_mode_manual: range_check set manually by user.  */

extern enum range_mode {range_mode_auto, range_mode_manual} range_mode;

/* range_check ==
   range_check_on:    Ranges are checked in GDB expressions, producing errors.
   range_check_warn:  Ranges are checked, producing warnings.
   range_check_off:   Ranges are not checked in GDB expressions.  */

extern enum range_check
  {range_check_off, range_check_warn, range_check_on} range_check;

/* type_mode ==
   type_mode_auto:   type_check set automatically to default of language
   type_mode_manual: type_check set manually by user. */

extern enum type_mode {type_mode_auto, type_mode_manual} type_mode;

/* type_check ==
   type_check_on:    Types are checked in GDB expressions, producing errors.
   type_check_warn:  Types are checked, producing warnings.
   type_check_off:   Types are not checked in GDB expressions.  */

extern enum type_check
  {type_check_off, type_check_warn, type_check_on} type_check;
\f
/* Information for doing language dependent formatting of printed values. */

struct language_format_info
{
  /* The format that can be passed directly to standard C printf functions
     to generate a completely formatted value in the format appropriate for
     the language. */

  char *la_format;

  /* The prefix to be used when directly printing a value, or constructing
     a standard C printf format.  This generally is everything up to the
     conversion specification (the part introduced by the '%' character
     and terminated by the conversion specifier character). */

  char *la_format_prefix;

  /* The conversion specifier.  This is generally everything after the
     field width and precision, typically only a single character such
     as 'o' for octal format or 'x' for hexadecimal format. */

  char *la_format_specifier;

  /* The suffix to be used when directly printing a value, or constructing
     a standard C printf format.  This generally is everything after the
     conversion specification (the part introduced by the '%' character
     and terminated by the conversion specifier character). */

  char *la_format_suffix;		/* Suffix for custom format string */
};

/* Structure tying together assorted information about a language.  */

struct language_defn {
  char *	   la_name;		/* Name of the language */
  enum language    la_language;		/* its symtab language-enum (defs.h) */
  struct type ** const
		  *la_builtin_type_vector;  /* Its builtin types */
  enum range_check la_range_check;	/* Default range checking */
  enum type_check  la_type_check;	/* Default type checking */
  int            (*la_parser) PARAMS((void));	/* Parser function */
  void           (*la_error) PARAMS ((char *)); /* Parser error function */
  void		 (*la_printchar) PARAMS ((int, FILE *));
  void		 (*la_printstr) PARAMS ((FILE *, char *, unsigned int, int));
  struct type   *(*la_fund_type) PARAMS ((struct objfile *, int));
  struct type	 **la_longest_int;	/* Longest signed integral type */
  struct type	 **la_longest_unsigned_int; /* Longest uns integral type */
  struct type	 **la_longest_float;	/* Longest floating point type */
  struct language_format_info
		   la_binary_format;	/* Base 2 (binary) formats. */
  struct language_format_info
    		   la_octal_format;	/* Base 8 (octal) formats. */
  struct language_format_info
    		   la_decimal_format;	/* Base 10 (decimal) formats */
  struct language_format_info
    		   la_hex_format;	/* Base 16 (hexadecimal) formats */
  const struct op_print
		  *la_op_print_tab;	/* Table for printing expressions */
/* Add fields above this point, so the magic number is always last. */
  long 		   la_magic;		/* Magic number for compat checking */
};

#define LANG_MAGIC	910823L

/* Pointer to the language_defn for our current language.  This pointer
   always points to *some* valid struct; it can be used without checking
   it for validity.  */

extern const struct language_defn *current_language;

/* Pointer to the language_defn expected by the user, e.g. the language
   of main(), or the language we last mentioned in a message, or C.  */

extern const struct language_defn *expected_language;

/* language_mode == 
   language_mode_auto:   current_language automatically set upon selection
			 of scope (e.g. stack frame)
   language_mode_manual: current_language set only by user.  */

extern enum language_mode
  {language_mode_auto, language_mode_manual} language_mode;
\f
/* These macros define the behaviour of the expression 
   evaluator.  */

/* Should we strictly type check expressions? */
#define STRICT_TYPE (type_check != type_check_off)

/* Should we range check values against the domain of their type? */
#define RANGE_CHECK (range_check != range_check_off)

/* "cast" really means conversion */
/* FIXME -- should be a setting in language_defn */
#define CAST_IS_CONVERSION (current_language->la_language == language_c)

extern void
language_info PARAMS ((int));

extern void
set_language PARAMS ((enum language));

\f
/* This page contains functions that return things that are
   specific to languages.  Each of these functions is based on
   the current setting of working_lang, which the user sets
   with the "set language" command. */

/* Returns some built-in types */
#define	longest_int()		(*current_language->la_longest_int)
#define	longest_unsigned_int()	(*current_language->la_longest_unsigned_int)
#define	longest_float()		(*current_language->la_longest_float)

#define create_fundamental_type(objfile,typeid) \
  (current_language->la_fund_type(objfile, typeid))

/* Return a format string for printf that will print a number in one of
   the local (language-specific) formats.  Result is static and is
   overwritten by the next call.  Takes printf options like "08" or "l"
   (to produce e.g. %08x or %lx).  */

#define local_binary_format() \
  (current_language->la_binary_format.la_format)
#define local_binary_format_prefix() \
  (current_language->la_binary_format.la_format_prefix)
#define local_binary_format_specifier() \
  (current_language->la_binary_format.la_format_specifier)
#define local_binary_format_suffix() \
  (current_language->la_binary_format.la_format_suffix)

#define local_octal_format() \
  (current_language->la_octal_format.la_format)
#define local_octal_format_prefix() \
  (current_language->la_octal_format.la_format_prefix)
#define local_octal_format_specifier() \
  (current_language->la_octal_format.la_format_specifier)
#define local_octal_format_suffix() \
  (current_language->la_octal_format.la_format_suffix)

#define local_decimal_format() \
  (current_language->la_decimal_format.la_format)
#define local_decimal_format_prefix() \
  (current_language->la_decimal_format.la_format_prefix)
#define local_decimal_format_specifier() \
  (current_language->la_decimal_format.la_format_specifier)
#define local_decimal_format_suffix() \
  (current_language->la_decimal_format.la_format_suffix)

#define local_hex_format() \
  (current_language->la_hex_format.la_format)
#define local_hex_format_prefix() \
  (current_language->la_hex_format.la_format_prefix)
#define local_hex_format_specifier() \
  (current_language->la_hex_format.la_format_specifier)
#define local_hex_format_suffix() \
  (current_language->la_hex_format.la_format_suffix)

#define local_printchar(ch, stream) \
  (current_language->la_printchar(ch, stream))
#define local_printstr(stream, string, length, force_ellipses) \
  (current_language->la_printstr(stream, string, length, force_ellipses))

/* Test a character to decide whether it can be printed in literal form
   or needs to be printed in another representation.  For example,
   in C the literal form of the character with octal value 141 is 'a'
   and the "other representation" is '\141'.  The "other representation"
   is program language dependent. */

#define PRINT_LITERAL_FORM(c) \
  ((c)>=0x20 && ((c)<0x7F || (c)>=0xA0) && (!sevenbit_strings || (c)<0x80))

/* Return a format string for printf that will print a number in one of
   the local (language-specific) formats.  Result is static and is
   overwritten by the next call.  Takes printf options like "08" or "l"
   (to produce e.g. %08x or %lx).  */

extern char *
local_octal_format_custom PARAMS ((char *));	/* language.c */

extern char *
local_hex_format_custom PARAMS ((char *));	/* language.c */

/* Return a string that contains a number formatted in one of the local
   (language-specific) formats.  Result is static and is overwritten by
   the next call.  Takes printf options like "08" or "l".  */

extern char *
local_octal_string PARAMS ((int));		/* language.c */

extern char *
local_octal_string_custom PARAMS ((int, char *));/* language.c */

extern char *
local_hex_string PARAMS ((int));		/* language.c */

extern char *
local_hex_string_custom PARAMS ((int, char *));	/* language.c */

/* Type predicates */

extern int
simple_type PARAMS ((struct type *));

extern int
ordered_type PARAMS ((struct type *));

extern int
same_type PARAMS ((struct type *, struct type *));

extern int
integral_type PARAMS ((struct type *));

extern int
numeric_type PARAMS ((struct type *));

extern int
character_type PARAMS ((struct type *));

extern int
boolean_type PARAMS ((struct type *));

extern int
float_type PARAMS ((struct type *));

extern int
pointer_type PARAMS ((struct type *));

extern int
structured_type PARAMS ((struct type *));

/* Checks Binary and Unary operations for semantic type correctness */
/* FIXME:  Does not appear to be used */
#define unop_type_check(v,o) binop_type_check((v),NULL,(o))

extern void
binop_type_check PARAMS ((struct value *, struct value *, int));

/* Error messages */

extern void
op_error PARAMS ((char *fmt, enum exp_opcode, int));

#define type_op_error(f,o) \
   op_error((f),(o),type_check==type_check_on ? 1 : 0)
#define range_op_error(f,o) \
   op_error((f),(o),range_check==range_check_on ? 1 : 0)

extern void
type_error ();

void
range_error ();

/* Data:  Does this value represent "truth" to the current language?  */

extern int
value_true PARAMS ((struct value *));

/* Misc:  The string representing a particular enum language.  */

extern const struct language_defn *
language_def PARAMS ((enum language));

extern char *
language_str PARAMS ((enum language));

/* Add a language to the set known by GDB (at initialization time).  */

extern void
add_language PARAMS ((const struct language_defn *));

extern enum language
get_frame_language PARAMS ((void));		/* In stack.c */

#endif	/* defined (LANGUAGE_H) */
Commit	Line	Data
c8023e66	1	/* Source-language-related definitions for GDB.
75af490b	2	Copyright 1991, 1992 Free Software Foundation, Inc.
c8023e66 JG	3	Contributed by the Department of Computer Science at the State University
	4	of New York at Buffalo.
	5
	6	This file is part of GDB.
	7
	8	This program is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 2 of the License, or
	11	(at your option) any later version.
	12
	13	This program is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with this program; if not, write to the Free Software
	20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	21
75af490b JG	22	#if !defined (LANGUAGE_H)
	23	#define LANGUAGE_H 1
	24
f9e3b3cc	25	#ifdef __STDC__ /* Forward decls for prototypes */
75af490b	26	struct value;
22e39759	27	struct objfile;
f9e3b3cc	28	/* enum exp_opcode; ANSI's `wisdom' didn't include forward enum decls. */
75af490b JG	29	#endif
75af490b JG	30
c8023e66 JG	31	/* This used to be included to configure GDB for one or more specific
	32	languages. Now it is shortcutted to configure for all of them. FIXME. */
	33	/* #include "lang_def.h" */
	34	#define _LANG_c
	35	#define _LANG_m2
19cfe25d	36	/* start-sanitize-chill */
e58de8a2	37	#define _LANG_chill
19cfe25d	38	/* end-sanitize-chill */
c8023e66 JG	39
	40	/* range_mode ==
	41	range_mode_auto: range_check set automatically to default of language.
	42	range_mode_manual: range_check set manually by user. */
	43
	44	extern enum range_mode {range_mode_auto, range_mode_manual} range_mode;
	45
	46	/* range_check ==
	47	range_check_on: Ranges are checked in GDB expressions, producing errors.
	48	range_check_warn: Ranges are checked, producing warnings.
	49	range_check_off: Ranges are not checked in GDB expressions. */
	50
	51	extern enum range_check
	52	{range_check_off, range_check_warn, range_check_on} range_check;
	53
	54	/* type_mode ==
	55	type_mode_auto: type_check set automatically to default of language
	56	type_mode_manual: type_check set manually by user. */
	57
	58	extern enum type_mode {type_mode_auto, type_mode_manual} type_mode;
	59
	60	/* type_check ==
	61	type_check_on: Types are checked in GDB expressions, producing errors.
	62	type_check_warn: Types are checked, producing warnings.
	63	type_check_off: Types are not checked in GDB expressions. */
	64
	65	extern enum type_check
	66	{type_check_off, type_check_warn, type_check_on} type_check;
	67	\f
2e66cf7d FF	68	/* Information for doing language dependent formatting of printed values. */
	69
	70	struct language_format_info
	71	{
	72	/* The format that can be passed directly to standard C printf functions
	73	to generate a completely formatted value in the format appropriate for
	74	the language. */
	75
	76	char *la_format;
	77
	78	/* The prefix to be used when directly printing a value, or constructing
	79	a standard C printf format. This generally is everything up to the
	80	conversion specification (the part introduced by the '%' character
	81	and terminated by the conversion specifier character). */
	82
	83	char *la_format_prefix;
	84
	85	/* The conversion specifier. This is generally everything after the
	86	field width and precision, typically only a single character such
	87	as 'o' for octal format or 'x' for hexadecimal format. */
	88
	89	char *la_format_specifier;
	90
	91	/* The suffix to be used when directly printing a value, or constructing
	92	a standard C printf format. This generally is everything after the
	93	conversion specification (the part introduced by the '%' character
	94	and terminated by the conversion specifier character). */
	95
	96	char la_format_suffix; / Suffix for custom format string */
	97	};
	98
c8023e66 JG	99	/* Structure tying together assorted information about a language. */
	100
	101	struct language_defn {
	102	char * la_name; /* Name of the language */
	103	enum language la_language; /* its symtab language-enum (defs.h) */
	104	struct type ** const
	105	la_builtin_type_vector; / Its builtin types */
	106	enum range_check la_range_check; /* Default range checking */
	107	enum type_check la_type_check; /* Default type checking */
75af490b JG	108	int (la_parser) PARAMS((void)); / Parser function */
75af490b JG	109	void (la_error) PARAMS ((char )); /* Parser error function */
5d074aa9 FF	110	void (la_printchar) PARAMS ((int, FILE ));
5d074aa9 FF	111	void (la_printstr) PARAMS ((FILE , char *, unsigned int, int));
bf229b4e	112	struct type (la_fund_type) PARAMS ((struct objfile *, int));
c8023e66 JG	113	struct type *la_longest_int; / Longest signed integral type */
	114	struct type *la_longest_unsigned_int; / Longest uns integral type */
	115	struct type *la_longest_float; / Longest floating point type */
2e66cf7d FF	116	struct language_format_info
	117	la_binary_format; /* Base 2 (binary) formats. */
	118	struct language_format_info
	119	la_octal_format; /* Base 8 (octal) formats. */
	120	struct language_format_info
	121	la_decimal_format; /* Base 10 (decimal) formats */
	122	struct language_format_info
	123	la_hex_format; /* Base 16 (hexadecimal) formats */
	124	const struct op_print
c8023e66 JG	125	la_op_print_tab; / Table for printing expressions */
	126	/* Add fields above this point, so the magic number is always last. */
	127	long la_magic; /* Magic number for compat checking */
	128	};
	129
	130	#define LANG_MAGIC 910823L
	131
	132	/* Pointer to the language_defn for our current language. This pointer
	133	always points to some valid struct; it can be used without checking
	134	it for validity. */
	135
0c6efbcc	136	extern const struct language_defn *current_language;
c8023e66	137
b5af69c3 JG	138	/* Pointer to the language_defn expected by the user, e.g. the language
	139	of main(), or the language we last mentioned in a message, or C. */
	140
	141	extern const struct language_defn *expected_language;
	142
c8023e66 JG	143	/* language_mode ==
	144	language_mode_auto: current_language automatically set upon selection
	145	of scope (e.g. stack frame)
	146	language_mode_manual: current_language set only by user. */
	147
	148	extern enum language_mode
	149	{language_mode_auto, language_mode_manual} language_mode;
	150	\f
	151	/* These macros define the behaviour of the expression
	152	evaluator. */
	153
	154	/* Should we strictly type check expressions? */
1a5a8f2a	155	#define STRICT_TYPE (type_check != type_check_off)
c8023e66 JG	156
c8023e66 JG	157	/* Should we range check values against the domain of their type? */
1a5a8f2a	158	#define RANGE_CHECK (range_check != range_check_off)
c8023e66 JG	159
	160	/* "cast" really means conversion */
	161	/* FIXME -- should be a setting in language_defn */
	162	#define CAST_IS_CONVERSION (current_language->la_language == language_c)
	163
75af490b JG	164	extern void
	165	language_info PARAMS ((int));
	166
	167	extern void
	168	set_language PARAMS ((enum language));
	169
c8023e66 JG	170	\f
	171	/* This page contains functions that return things that are
	172	specific to languages. Each of these functions is based on
	173	the current setting of working_lang, which the user sets
	174	with the "set language" command. */
	175
	176	/* Returns some built-in types */
	177	#define longest_int() (*current_language->la_longest_int)
	178	#define longest_unsigned_int() (*current_language->la_longest_unsigned_int)
	179	#define longest_float() (*current_language->la_longest_float)
c8023e66	180
bf229b4e FF	181	#define create_fundamental_type(objfile,typeid) \
	182	(current_language->la_fund_type(objfile, typeid))
	183
2e66cf7d FF	184	/* Return a format string for printf that will print a number in one of
	185	the local (language-specific) formats. Result is static and is
	186	overwritten by the next call. Takes printf options like "08" or "l"
	187	(to produce e.g. %08x or %lx). */
	188
	189	#define local_binary_format() \
	190	(current_language->la_binary_format.la_format)
	191	#define local_binary_format_prefix() \
	192	(current_language->la_binary_format.la_format_prefix)
	193	#define local_binary_format_specifier() \
	194	(current_language->la_binary_format.la_format_specifier)
	195	#define local_binary_format_suffix() \
	196	(current_language->la_binary_format.la_format_suffix)
	197
	198	#define local_octal_format() \
	199	(current_language->la_octal_format.la_format)
	200	#define local_octal_format_prefix() \
	201	(current_language->la_octal_format.la_format_prefix)
	202	#define local_octal_format_specifier() \
	203	(current_language->la_octal_format.la_format_specifier)
	204	#define local_octal_format_suffix() \
	205	(current_language->la_octal_format.la_format_suffix)
	206
	207	#define local_decimal_format() \
	208	(current_language->la_decimal_format.la_format)
	209	#define local_decimal_format_prefix() \
	210	(current_language->la_decimal_format.la_format_prefix)
	211	#define local_decimal_format_specifier() \
	212	(current_language->la_decimal_format.la_format_specifier)
	213	#define local_decimal_format_suffix() \
	214	(current_language->la_decimal_format.la_format_suffix)
	215
	216	#define local_hex_format() \
	217	(current_language->la_hex_format.la_format)
	218	#define local_hex_format_prefix() \
	219	(current_language->la_hex_format.la_format_prefix)
	220	#define local_hex_format_specifier() \
	221	(current_language->la_hex_format.la_format_specifier)
	222	#define local_hex_format_suffix() \
	223	(current_language->la_hex_format.la_format_suffix)
	224
5d074aa9 FF	225	#define local_printchar(ch, stream) \
	226	(current_language->la_printchar(ch, stream))
	227	#define local_printstr(stream, string, length, force_ellipses) \
	228	(current_language->la_printstr(stream, string, length, force_ellipses))
	229
5707ea9f FF	230	/* Test a character to decide whether it can be printed in literal form
	231	or needs to be printed in another representation. For example,
	232	in C the literal form of the character with octal value 141 is 'a'
	233	and the "other representation" is '\141'. The "other representation"
	234	is program language dependent. */
	235
	236	#define PRINT_LITERAL_FORM(c) \
	237	((c)>=0x20 && ((c)<0x7F \|\| (c)>=0xA0) && (!sevenbit_strings \|\| (c)<0x80))
	238
2e66cf7d FF	239	/* Return a format string for printf that will print a number in one of
	240	the local (language-specific) formats. Result is static and is
	241	overwritten by the next call. Takes printf options like "08" or "l"
	242	(to produce e.g. %08x or %lx). */
c8023e66	243
2e66cf7d FF	244	extern char *
	245	local_octal_format_custom PARAMS ((char )); / language.c */
	246
	247	extern char *
	248	local_hex_format_custom PARAMS ((char )); / language.c */
c8023e66	249
2e66cf7d FF	250	/* Return a string that contains a number formatted in one of the local
	251	(language-specific) formats. Result is static and is overwritten by
	252	the next call. Takes printf options like "08" or "l". */
	253
	254	extern char *
	255	local_octal_string PARAMS ((int)); /* language.c */
	256
	257	extern char *
	258	local_octal_string_custom PARAMS ((int, char ));/ language.c */
	259
	260	extern char *
	261	local_hex_string PARAMS ((int)); /* language.c */
75af490b JG	262
75af490b JG	263	extern char *
2e66cf7d	264	local_hex_string_custom PARAMS ((int, char )); / language.c */
c8023e66 JG	265
c8023e66 JG	266	/* Type predicates */
75af490b JG	267
	268	extern int
	269	simple_type PARAMS ((struct type *));
	270
	271	extern int
	272	ordered_type PARAMS ((struct type *));
	273
	274	extern int
	275	same_type PARAMS ((struct type , struct type ));
	276
	277	extern int
	278	integral_type PARAMS ((struct type *));
	279
	280	extern int
	281	numeric_type PARAMS ((struct type *));
	282
	283	extern int
	284	character_type PARAMS ((struct type *));
	285
	286	extern int
	287	boolean_type PARAMS ((struct type *));
	288
	289	extern int
	290	float_type PARAMS ((struct type *));
	291
	292	extern int
	293	pointer_type PARAMS ((struct type *));
	294
	295	extern int
	296	structured_type PARAMS ((struct type *));
c8023e66 JG	297
c8023e66 JG	298	/* Checks Binary and Unary operations for semantic type correctness */
75af490b	299	/* FIXME: Does not appear to be used */
c8023e66 JG	300	#define unop_type_check(v,o) binop_type_check((v),NULL,(o))
c8023e66 JG	301
75af490b JG	302	extern void
	303	binop_type_check PARAMS ((struct value , struct value , int));
	304
c8023e66	305	/* Error messages */
75af490b JG	306
	307	extern void
	308	op_error PARAMS ((char *fmt, enum exp_opcode, int));
	309
c8023e66 JG	310	#define type_op_error(f,o) \
	311	op_error((f),(o),type_check==type_check_on ? 1 : 0)
	312	#define range_op_error(f,o) \
	313	op_error((f),(o),range_check==range_check_on ? 1 : 0)
75af490b JG	314
	315	extern void
	316	type_error ();
	317
	318	void
	319	range_error ();
c8023e66 JG	320
c8023e66 JG	321	/* Data: Does this value represent "truth" to the current language? */
75af490b JG	322
	323	extern int
	324	value_true PARAMS ((struct value *));
c8023e66 JG	325
c8023e66 JG	326	/* Misc: The string representing a particular enum language. */
75af490b	327
bf229b4e FF	328	extern const struct language_defn *
	329	language_def PARAMS ((enum language));
	330
75af490b JG	331	extern char *
75af490b JG	332	language_str PARAMS ((enum language));
c8023e66 JG	333
c8023e66 JG	334	/* Add a language to the set known by GDB (at initialization time). */
d8ce1326	335
75af490b JG	336	extern void
	337	add_language PARAMS ((const struct language_defn *));
	338
	339	extern enum language
	340	get_frame_language PARAMS ((void)); /* In stack.c */
	341
	342	#endif /* defined (LANGUAGE_H) */