old-cross-binutils/gdb/language.h
Pedro Alves 6f937416b9 Constify strings in tracepoint.c, lookup_cmd and the completers.
This is sort of a continuation of Keith's parse_exp_1 constification
patch.  It started out by undoing these bits:

  @@ -754,9 +754,12 @@ validate_actionline (char **line, struct
   	  tmp_p = p;
   	  for (loc = t->base.loc; loc; loc = loc->next)
   	    {
  -	      p = tmp_p;
  -	      exp = parse_exp_1 (&p, loc->address,
  +	      const char *q;
  +
  +	      q = tmp_p;
  +	      exp = parse_exp_1 (&q, loc->address,
   				 block_for_pc (loc->address), 1);
  +	      p = (char *) q;

and progressively making more things const upwards, fixing fallout,
rinse repeat, until GDB built again (--enable-targets=all).

That ended up constifying lookup_cmd/add_cmd and (lots of) friends,
and the completers.

I didn't try to constify the command hooks themselves, because I know
upfront there are commands that write to the command string argument,
and I think I managed to stop at a nice non-hacky split point already.

I think the only non-really-super-obvious changes are
tracepoint.c:validate_actionline, and tracepoint.c:trace_dump_actions.

The rest is just mostly about 'char *' => 'const char *', 'char **'=>
'const char **', and the occasional (e.g., deprecated_cmd_warning)
case of 'char **'=> 'const char *', where/when I noticed that nothing
actually cares about the pointer to pointer output.

Tested on x86_64 Fedora 17, native and gdbserver.

gdb/
2013-03-13  Pedro Alves  <palves@redhat.com>

	* ada-lang.c (struct add_partial_datum) <text, text0, word>: Make
	fields const.
	(ada_make_symbol_completion_list): Make "text0" parameter const.
	* ax-gdb.c (agent_eval_command_one): Make "exp" parameter const.
	* breakpoint.c (condition_completer): Make "text" and "word"
	parameters const.  Adjust.
	(check_tracepoint_command): Adjust to validate_actionline
	prototype change.
	(catch_syscall_completer): Make "text" and "word" parameters
	const.
	* cli/cli-cmds.c (show_user): Make "comname" local const.
	(valid_command_p): Make "command" parameter const.
	(alias_command): Make "alias_prefix" and "command_prefix" locals
	const.
	* cli/cli-decode.c (add_cmd): Make "name" parameter const.
	(add_alias_cmd): Make "name" and "oldname" parameters const.
	Adjust.  No longer make copy of OLDNAME.
	(add_prefix_cmd, add_abbrev_prefix_cmd, add_set_or_show_cmd)
	(add_setshow_cmd_full, add_setshow_enum_cmd)
	(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
	(add_setshow_filename_cmd, add_setshow_string_cmd)
	(add_setshow_string_noescape_cmd)
	(add_setshow_optional_filename_cmd, add_setshow_integer_cmd)
	(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd)
	(add_setshow_zuinteger_unlimited_cmd, add_setshow_zuinteger_cmd)
	(delete_cmd, add_info, add_info_alias, add_com, add_com_alias):
	Make "name" parameter const.
	(help_cmd): Rename "command" parameter to "arg".  New const local
	"command".
	(find_cmd): Make "command" parameter const.
	(lookup_cmd_1): Make "text" parameter pointer to const.  Adjust to
	deprecated_cmd_warning prototype change.
	(undef_cmd_error): Make "cmdtype" parameter const.
	(lookup_cmd): Make "line" parameter const.
	(deprecated_cmd_warning): Change type of "text" parameter to
	pointer to const char, from pointer to pointer to char.  Adjust.
	(lookup_cmd_composition): Make "text" parameter const.
	(complete_on_cmdlist, complete_on_enum): Make "text" and "word"
	parameters const.
	* cli/cli-decode.h (struct cmd_list_element) <name>: Make field
	const.
	* cli/cli-script.c (validate_comname): Make "tem" local const.
	(define_command): New const local "tem_c".  Use it in calls to
	lookup_cmd.
	(document_command): Make "tem" and "comfull" locals const.
	(show_user_1): Make "prefix" and "name" parameters const.
	* cli-script.h (show_user_1): Make "prefix" and "name" parameters
	const.
	* command.h (add_cmd, add_alias_cmd, add_prefix_cmd)
	(add_abbrev_prefix_cmd, completer_ftype, lookup_cmd, lookup_cmd_1)
	(deprecated_cmd_warning, lookup_cmd_composition, add_com)
	(add_com_alias, add_info, add_info_alias, complete_on_cmdlist)
	(complete_on_enum, add_setshow_enum_cmd)
	(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
	(add_setshow_filename_cmd, add_setshow_string_cmd)
	(add_setshow_string_noescape_cmd)
	(add_setshow_optional_filename_cmd, add_setshow_integer_cmd)
	(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd)
	(add_setshow_zuinteger_cmd, add_setshow_zuinteger_unlimited_cmd):
	Change prototypes, constifying strings.
	* completer.c (noop_completer, filename_completer): Make "text"
	and "prefix" parameters const.
	(location_completer, expression_completer)
	(complete_line_internal): Make "text" and "prefix" parameters
	const and adjust.
	(command_completer, signal_completer): Make "text" and "prefix"
	parameters const.
	* completer.h (noop_completer, filename_completer)
	(expression_completer, location_completer, command_completer)
	(signal_completer): Change prototypes.
	* corefile.c (complete_set_gnutarget): Make "text" and "word"
	parameters const.
	* cp-abi.c (cp_abi_completer): Likewise.
	* expression.h (parse_expression_for_completion): Change
	prototype.
	* f-lang.c (f_make_symbol_completion_list): Make "text" and "word"
	parameters const.
	* infcmd.c (_initialize_infcmd): Make "cmd_name" local const.
	* infrun.c (handle_completer): Make "text" and "word" parameters
	const.
	* interps.c (interpreter_completer): Make "text" and "word"
	parameters const.
	* language.h (struct language_defn)
	<la_make_symbol_completion_list>: Make "text" and "word"
	parameters const.
	* parse.c (parse_exp_1): Move const hack to parse_exp_in_context.
	(parse_exp_in_context): Rename to ...
	(parse_exp_in_context_1): ... this.
	(parse_exp_in_context): Reimplement, with const hack from
	parse_exp_1.
	(parse_expression_for_completion): Make "string" parameter const.
	* printcmd.c (decode_format): Make "string_ptr" parameter pointer
	to pointer to const char.  Adjust.
	(print_command_1): Make "exp" parameter const.
	(output_command): Rename to ...
	(output_command_const): ... this.  Make "exp" parameter const.
	(output_command): Reimplement.
	(x_command): Adjust.
	(display_command): Rename "exp" parameter to "arg".  New "exp"
	local, const version of "arg".
	* python/py-auto-load.c (gdbpy_initialize_auto_load): Make
	"cmd_name" local const.
	* python/py-cmd.c (cmdpy_destroyer): Cast const away in xfree
	call.
	(cmdpy_completer): Make "text" and "word" parameters const.
	(gdbpy_parse_command_name): Make "prefix_text2" local const.
	* python/py-param.c (add_setshow_generic): Make "tmp_name" local
	const.
	* remote.c (_initialize_remote): Make "cmd_name" local const.
	* symtab.c (language_search_unquoted_string): Make "text" and "p"
	parameters const.  Adjust.
	(completion_list_add_fields): Make "sym_text", "text" and "word"
	parameters const.
	(struct add_name_data) <sym_text, text, word>: Make fields const.
	(default_make_symbol_completion_list_break_on): Make "text" and
	"word" parameters const.  Adjust locals.
	(default_make_symbol_completion_list)
	(make_symbol_completion_list, make_symbol_completion_type)
	(make_symbol_completion_list_fn): Make "text" and "word"
	parameters const.
	(make_file_symbol_completion_list): Make "text", "word" and
	"srcfile" parameters const.  Adjust locals.
	(add_filename_to_list): Make "text" and "word" parameters const.
	(struct add_partial_filename_data) <text, word>: Make fields
	const.
	(make_source_files_completion_list): Make "text" and "word"
	parameters const.
	* symtab.h (default_make_symbol_completion_list_break_on)
	(default_make_symbol_completion_list, make_symbol_completion_list)
	(make_symbol_completion_type enum type_code)
	(make_symbol_completion_list_fn make_file_symbol_completion_list)
	(make_source_files_completion_list): Change prototype.
	* top.c (execute_command): Adjust to pass pointer to pointer to
	const char to lookup_cmd, and to deprecated_cmd_warning prototype
	change.
	(set_verbose): Make "cmdname" local const.
	* tracepoint.c (decode_agent_options): Make "exp" parameter const,
	and adjust.
	(validate_actionline): Make "line" parameter a pointer to const
	char, and adjust.
	(encode_actions_1): Make "action_exp" local const, and adjust.
	(encode_actions): Adjust.
	(replace_comma): Delete.
	(trace_dump_actions): Make "action_exp" and "next_comma" locals
	const, and adjust.  Don't frob the action string while splitting
	it at commas.  Instead, make a copy of each split substring in
	turn.
	(trace_dump_command): Adjust to validate_actionline prototype
	change.
	* tracepoint.h (decode_agent_options, decode_agent_options)
	(encode_actions, validate_actionline): Change prototypes.
	* valprint.h (output_command): Delete declaration.
	(output_command_const): Declare.
	* value.c (function_destroyer): Cast const away in xfree call.
2013-03-13 18:34:55 +00:00

534 lines
19 KiB
C
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* Source-language-related definitions for GDB.
Copyright (C) 1991-2013 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 3 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, see <http://www.gnu.org/licenses/>. */
#if !defined (LANGUAGE_H)
#define LANGUAGE_H 1
/* Forward decls for prototypes. */
struct value;
struct objfile;
struct frame_info;
struct expression;
struct ui_file;
struct value_print_options;
struct type_print_options;
#define MAX_FORTRAN_DIMS 7 /* Maximum number of F77 array dims. */
/* 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;
/* case_mode ==
case_mode_auto: case_sensitivity set upon selection of scope.
case_mode_manual: case_sensitivity set only by user. */
extern enum case_mode
{
case_mode_auto, case_mode_manual
}
case_mode;
/* array_ordering ==
array_row_major: Arrays are in row major order.
array_column_major: Arrays are in column major order. */
extern enum array_ordering
{
array_row_major, array_column_major
}
array_ordering;
/* case_sensitivity ==
case_sensitive_on: Case sensitivity in name matching is used.
case_sensitive_off: Case sensitivity in name matching is not used. */
extern enum case_sensitivity
{
case_sensitive_on, case_sensitive_off
}
case_sensitivity;
/* macro_expansion ==
macro_expansion_no: No macro expansion is available.
macro_expansion_c: C-like macro expansion is available. */
enum macro_expansion
{
macro_expansion_no, macro_expansion_c
};
/* Per architecture (OS/ABI) language information. */
struct language_arch_info
{
/* Its primitive types. This is a vector ended by a NULL pointer.
These types can be specified by name in parsing types in
expressions, regardless of whether the program being debugged
actually defines such a type. */
struct type **primitive_type_vector;
/* Type of elements of strings. */
struct type *string_char_type;
/* Symbol name of type to use as boolean type, if defined. */
const char *bool_type_symbol;
/* Otherwise, this is the default boolean builtin type. */
struct type *bool_type_default;
};
/* A pointer to a function expected to return nonzero if
SYMBOL_SEARCH_NAME matches the given LOOKUP_NAME.
SYMBOL_SEARCH_NAME should be a symbol's "search" name.
LOOKUP_NAME should be the name of an entity after it has been
transformed for lookup. */
typedef int (*symbol_name_cmp_ftype) (const char *symbol_search_name,
const char *lookup_name);
/* Structure tying together assorted information about a language. */
struct language_defn
{
/* Name of the language. */
char *la_name;
/* its symtab language-enum (defs.h). */
enum language la_language;
/* Default range checking. */
enum range_check la_range_check;
/* Default case sensitivity. */
enum case_sensitivity la_case_sensitivity;
/* Multi-dimensional array ordering. */
enum array_ordering la_array_ordering;
/* Style of macro expansion, if any, supported by this language. */
enum macro_expansion la_macro_expansion;
/* Definitions related to expression printing, prefixifying, and
dumping. */
const struct exp_descriptor *la_exp_desc;
/* Parser function. */
int (*la_parser) (void);
/* Parser error function. */
void (*la_error) (char *);
/* Given an expression *EXPP created by prefixifying the result of
la_parser, perform any remaining processing necessary to complete
its translation. *EXPP may change; la_post_parser is responsible
for releasing its previous contents, if necessary. If
VOID_CONTEXT_P, then no value is expected from the expression. */
void (*la_post_parser) (struct expression ** expp, int void_context_p);
void (*la_printchar) (int ch, struct type *chtype,
struct ui_file * stream);
void (*la_printstr) (struct ui_file * stream, struct type *elttype,
const gdb_byte *string, unsigned int length,
const char *encoding, int force_ellipses,
const struct value_print_options *);
void (*la_emitchar) (int ch, struct type *chtype,
struct ui_file * stream, int quoter);
/* Print a type using syntax appropriate for this language. */
void (*la_print_type) (struct type *, const char *, struct ui_file *, int,
int, const struct type_print_options *);
/* Print a typedef using syntax appropriate for this language.
TYPE is the underlying type. NEW_SYMBOL is the symbol naming
the type. STREAM is the output stream on which to print. */
void (*la_print_typedef) (struct type *type, struct symbol *new_symbol,
struct ui_file *stream);
/* Print a value using syntax appropriate for this language.
TYPE is the type of the sub-object to be printed.
CONTENTS holds the bits of the value. This holds the entire
enclosing object.
EMBEDDED_OFFSET is the offset into the outermost object of the
sub-object represented by TYPE. This is the object which this
call should print. Note that the enclosing type is not
available.
ADDRESS is the address in the inferior of the enclosing object.
STREAM is the stream on which the value is to be printed.
RECURSE is the recursion depth. It is zero-based.
OPTIONS are the formatting options to be used when
printing. */
void (*la_val_print) (struct type *type,
const gdb_byte *contents,
int embedded_offset, CORE_ADDR address,
struct ui_file *stream, int recurse,
const struct value *val,
const struct value_print_options *options);
/* Print a top-level value using syntax appropriate for this language. */
void (*la_value_print) (struct value *, struct ui_file *,
const struct value_print_options *);
/* Given a symbol VAR, and a stack frame id FRAME, read the value
of the variable an return (pointer to a) struct value containing
the value.
Throw an error if the variable cannot be found. */
struct value *(*la_read_var_value) (struct symbol *var,
struct frame_info *frame);
/* PC is possibly an unknown languages trampoline.
If that PC falls in a trampoline belonging to this language,
return the address of the first pc in the real function, or 0
if it isn't a language tramp for this language. */
CORE_ADDR (*skip_trampoline) (struct frame_info *, CORE_ADDR);
/* Now come some hooks for lookup_symbol. */
/* If this is non-NULL, specifies the name that of the implicit
local variable that refers to the current object instance. */
char *la_name_of_this;
/* This is a function that lookup_symbol will call when it gets to
the part of symbol lookup where C looks up static and global
variables. */
struct symbol *(*la_lookup_symbol_nonlocal) (const char *,
const struct block *,
const domain_enum);
/* Find the definition of the type with the given name. */
struct type *(*la_lookup_transparent_type) (const char *);
/* Return demangled language symbol, or NULL. */
char *(*la_demangle) (const char *mangled, int options);
/* Return class name of a mangled method name or NULL. */
char *(*la_class_name_from_physname) (const char *physname);
/* Table for printing expressions. */
const struct op_print *la_op_print_tab;
/* Zero if the language has first-class arrays. True if there are no
array values, and array objects decay to pointers, as in C. */
char c_style_arrays;
/* Index to use for extracting the first element of a string. */
char string_lower_bound;
/* The list of characters forming word boundaries. */
char *(*la_word_break_characters) (void);
/* Should return a vector of all symbols which are possible
completions for TEXT. WORD is the entire command on which the
completion is being made. If CODE is TYPE_CODE_UNDEF, then all
symbols should be examined; otherwise, only STRUCT_DOMAIN
symbols whose type has a code of CODE should be matched. */
VEC (char_ptr) *(*la_make_symbol_completion_list) (const char *text,
const char *word,
enum type_code code);
/* The per-architecture (OS/ABI) language information. */
void (*la_language_arch_info) (struct gdbarch *,
struct language_arch_info *);
/* Print the index of an element of an array. */
void (*la_print_array_index) (struct value *index_value,
struct ui_file *stream,
const struct value_print_options *options);
/* Return non-zero if TYPE should be passed (and returned) by
reference at the language level. */
int (*la_pass_by_reference) (struct type *type);
/* Obtain a string from the inferior, storing it in a newly allocated
buffer in BUFFER, which should be freed by the caller. If the
in- and out-parameter *LENGTH is specified at -1, the string is
read until a null character of the appropriate width is found -
otherwise the string is read to the length of characters specified.
On completion, *LENGTH will hold the size of the string in characters.
If a *LENGTH of -1 was specified it will count only actual
characters, excluding any eventual terminating null character.
Otherwise *LENGTH will include all characters - including any nulls.
CHARSET will hold the encoding used in the string. */
void (*la_get_string) (struct value *value, gdb_byte **buffer, int *length,
struct type **chartype, const char **charset);
/* Return a pointer to the function that should be used to match
a symbol name against LOOKUP_NAME. This is mostly for languages
such as Ada where the matching algorithm depends on LOOKUP_NAME.
This field may be NULL, in which case strcmp_iw will be used
to perform the matching. */
symbol_name_cmp_ftype (*la_get_symbol_name_cmp) (const char *lookup_name);
/* Find all symbols in the current program space matching NAME in
DOMAIN, according to this language's rules.
The search is done in BLOCK only.
The caller is responsible for iterating up through superblocks
if desired.
For each one, call CALLBACK with the symbol and the DATA
argument. If CALLBACK returns zero, the iteration ends at that
point.
This field may not be NULL. If the language does not need any
special processing here, 'iterate_over_symbols' should be
used as the definition. */
void (*la_iterate_over_symbols) (const struct block *block,
const char *name,
domain_enum domain,
symbol_found_callback_ftype *callback,
void *data);
/* Add fields above this point, so the magic number is always last. */
/* Magic number for compat checking. */
long la_magic;
};
#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.
The current language affects expression parsing and evaluation
(FIXME: it might be cleaner to make the evaluation-related stuff
separate exp_opcodes for each different set of semantics. We
should at least think this through more clearly with respect to
what happens if the language is changed between parsing and
evaluation) and printing of things like types and arrays. It does
*not* affect symbol-reading-- each source file in a symbol-file has
its own language and we should keep track of that regardless of the
language when symbols are read. If we want some manual setting for
the language of symbol files (e.g. detecting when ".c" files are
C++), it should be a separate setting from the current_language. */
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;
struct type *language_bool_type (const struct language_defn *l,
struct gdbarch *gdbarch);
struct type *language_string_char_type (const struct language_defn *l,
struct gdbarch *gdbarch);
struct type *language_lookup_primitive_type_by_name (const struct language_defn *l,
struct gdbarch *gdbarch,
const char *name);
/* These macros define the behaviour of the expression
evaluator. */
/* 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(LANG) ((LANG)->la_language == language_c || \
(LANG)->la_language == language_cplus || \
(LANG)->la_language == language_objc)
extern void language_info (int);
extern enum language set_language (enum language);
/* 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. */
#define LA_PRINT_TYPE(type,varstring,stream,show,level,flags) \
(current_language->la_print_type(type,varstring,stream,show,level,flags))
#define LA_PRINT_TYPEDEF(type,new_symbol,stream) \
(current_language->la_print_typedef(type,new_symbol,stream))
#define LA_VAL_PRINT(type,valaddr,offset,addr,stream,val,recurse,options) \
(current_language->la_val_print(type,valaddr,offset,addr,stream, \
val,recurse,options))
#define LA_VALUE_PRINT(val,stream,options) \
(current_language->la_value_print(val,stream,options))
#define LA_PRINT_CHAR(ch, type, stream) \
(current_language->la_printchar(ch, type, stream))
#define LA_PRINT_STRING(stream, elttype, string, length, encoding, force_ellipses, options) \
(current_language->la_printstr(stream, elttype, string, length, \
encoding, force_ellipses,options))
#define LA_EMIT_CHAR(ch, type, stream, quoter) \
(current_language->la_emitchar(ch, type, stream, quoter))
#define LA_GET_STRING(value, buffer, length, chartype, encoding) \
(current_language->la_get_string(value, buffer, length, chartype, encoding))
#define LA_PRINT_ARRAY_INDEX(index_value, stream, options) \
(current_language->la_print_array_index(index_value, stream, options))
#define LA_ITERATE_OVER_SYMBOLS(BLOCK, NAME, DOMAIN, CALLBACK, DATA) \
(current_language->la_iterate_over_symbols (BLOCK, NAME, DOMAIN, CALLBACK, \
DATA))
/* 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))
/* Type predicates */
extern int pointer_type (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 (struct value *, struct value *, int);
/* Error messages */
extern void range_error (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
/* Data: Does this value represent "truth" to the current language? */
extern int value_true (struct value *);
/* Misc: The string representing a particular enum language. */
extern enum language language_enum (char *str);
extern const struct language_defn *language_def (enum language);
extern char *language_str (enum language);
/* Add a language to the set known by GDB (at initialization time). */
extern void add_language (const struct language_defn *);
extern enum language get_frame_language (void); /* In stack.c */
/* Check for a language-specific trampoline. */
extern CORE_ADDR skip_language_trampoline (struct frame_info *, CORE_ADDR pc);
/* Return demangled language symbol, or NULL. */
extern char *language_demangle (const struct language_defn *current_language,
const char *mangled, int options);
/* Return class name from physname, or NULL. */
extern char *language_class_name_from_physname (const struct language_defn *,
const char *physname);
/* Splitting strings into words. */
extern char *default_word_break_characters (void);
/* Print the index of an array element using the C99 syntax. */
extern void default_print_array_index (struct value *index_value,
struct ui_file *stream,
const struct value_print_options *options);
/* Return non-zero if TYPE should be passed (and returned) by
reference at the language level. */
int language_pass_by_reference (struct type *type);
/* Return zero; by default, types are passed by value at the language
level. The target ABI may pass or return some structs by reference
independent of this. */
int default_pass_by_reference (struct type *type);
/* The default implementation of la_print_typedef. */
void default_print_typedef (struct type *type, struct symbol *new_symbol,
struct ui_file *stream);
void default_get_string (struct value *value, gdb_byte **buffer, int *length,
struct type **char_type, const char **charset);
void c_get_string (struct value *value, gdb_byte **buffer, int *length,
struct type **char_type, const char **charset);
#endif /* defined (LANGUAGE_H) */