/* Source-language-related definitions for GDB.
- Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2003 Free
- Software Foundation, Inc.
+ Copyright (C) 1991-2017 Free Software Foundation, Inc.
Contributed by the Department of Computer Science at the State University
of New York at Buffalo.
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
+ 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,
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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#if !defined (LANGUAGE_H)
#define LANGUAGE_H 1
-/* Forward decls for prototypes */
+#include "symtab.h"
+#include "common/function-view.h"
+
+/* Forward decls for prototypes. */
struct value;
struct objfile;
+struct frame_info;
struct expression;
struct ui_file;
+struct value_print_options;
+struct type_print_options;
+struct lang_varobj_ops;
+struct parser_state;
+struct compile_instance;
-/* enum exp_opcode; ANSI's `wisdom' didn't include forward enum decls. */
-
-/* This used to be included to configure GDB for one or more specific
- languages. Now it is left out to configure for all of them. FIXME. */
-/* #include "lang_def.h" */
-#define _LANG_c
-#define _LANG_m2
-#define _LANG_fortran
-#define _LANG_pascal
-
-#define MAX_FORTRAN_DIMS 7 /* Maximum number of F77 array dims */
+#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_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;
-
/* case_mode ==
- case_mode_auto: case_sensitivity set upon selection of scope
+ 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;
+/* 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 */
+ 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;
-\f
-/* Information for doing language dependent formatting of printed values. */
-struct language_format_info
+
+/* macro_expansion ==
+ macro_expansion_no: No macro expansion is available.
+ macro_expansion_c: C-like macro expansion is available. */
+
+enum macro_expansion
{
- /* 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. */
+ macro_expansion_no, macro_expansion_c
+ };
- char *la_format;
+\f
+/* Per architecture (OS/ABI) language information. */
- /* 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). */
+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;
- char *la_format_prefix;
+ /* Symbol wrappers around primitive_type_vector, so that the symbol lookup
+ machinery can return them. */
+ struct symbol **primitive_type_symbols;
- /* 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. */
+ /* Type of elements of strings. */
+ struct type *string_char_type;
- char *la_format_specifier;
+ /* 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;
+};
- /* 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). */
+/* A pointer to a function expected to return nonzero if
+ SYMBOL_SEARCH_NAME matches the given LOOKUP_NAME.
- char *la_format_suffix; /* Suffix for custom format string */
- };
+ 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 */
+ /* Name of the language. */
- char *la_name;
+ const char *la_name;
- /* its symtab language-enum (defs.h) */
+ /* Natural or official name of the language. */
- enum language la_language;
+ const char *la_natural_name;
- /* Its builtin 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. */
+ /* its symtab language-enum (defs.h). */
- struct type **const *la_builtin_type_vector;
+ enum language la_language;
- /* Default range checking */
+ /* Default range checking. */
enum range_check la_range_check;
- /* Default type checking */
+ /* Default case sensitivity. */
+ enum case_sensitivity la_case_sensitivity;
- enum type_check la_type_check;
+ /* Multi-dimensional array ordering. */
+ enum array_ordering la_array_ordering;
- /* Default case sensitivity */
- enum case_sensitivity la_case_sensitivity;
+ /* Style of macro expansion, if any, supported by this language. */
+ enum macro_expansion la_macro_expansion;
+
+ /* A NULL-terminated array of file extensions for this language.
+ The extension must include the ".", like ".c". If this
+ language doesn't need to provide any filename extensions, this
+ may be NULL. */
+
+ const char *const *la_filename_extensions;
+
+ /* Definitions related to expression printing, prefixifying, and
+ dumping. */
+
+ const struct exp_descriptor *la_exp_desc;
+
+ /* Parser function. */
+
+ int (*la_parser) (struct parser_state *);
+
+ /* Parser error function. */
+
+ void (*la_error) (const 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);
- /* Parser function. */
+ void (*la_printchar) (int ch, struct type *chtype,
+ struct ui_file * stream);
- int (*la_parser) (void);
+ 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 *);
- /* Parser error function */
+ void (*la_emitchar) (int ch, struct type *chtype,
+ struct ui_file * stream, int quoter);
- void (*la_error) (char *);
+ /* Print a type using syntax appropriate for this language. */
- /* Evaluate an expression. */
- struct value *(*evaluate_exp) (struct type *, struct expression *,
- int *, enum noside);
+ void (*la_print_type) (struct type *, const char *, struct ui_file *, int,
+ int, const struct type_print_options *);
- void (*la_printchar) (int ch, struct ui_file * stream);
+ /* 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_printstr) (struct ui_file * stream, char *string,
- unsigned int length, int width,
- int force_ellipses);
+ void (*la_print_typedef) (struct type *type, struct symbol *new_symbol,
+ struct ui_file *stream);
- void (*la_emitchar) (int ch, struct ui_file * stream, int quoter);
+ /* Print a value using syntax appropriate for this language.
+
+ TYPE is the type of the sub-object to be printed.
- struct type *(*la_fund_type) (struct objfile *, int);
+ 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.
- /* Print a type using syntax appropriate for this language. */
+ ADDRESS is the address in the inferior of the enclosing object.
- void (*la_print_type) (struct type *, char *, struct ui_file *, int,
- int);
+ STREAM is the stream on which the value is to be printed.
- /* Print a value using syntax appropriate for this language. */
+ RECURSE is the recursion depth. It is zero-based.
- int (*la_val_print) (struct type *, char *, int, CORE_ADDR,
- struct ui_file *, int, int, int,
- enum val_prettyprint);
+ OPTIONS are the formatting options to be used when
+ printing. */
- /* Print a top-level value using syntax appropriate for this language. */
+ void (*la_val_print) (struct type *type,
+ int embedded_offset, CORE_ADDR address,
+ struct ui_file *stream, int recurse,
+ struct value *val,
+ const struct value_print_options *options);
- int (*la_value_print) (struct value *, struct ui_file *,
- int, enum val_prettyprint);
+ /* 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, the corresponding block VAR_BLOCK (if any) and a
+ stack frame id FRAME, read the value of the variable and return (pointer
+ to a) struct value containing the value.
+
+ VAR_BLOCK is needed if there's a possibility for VAR to be outside
+ FRAME. This is what happens if FRAME correspond to a nested function
+ and VAR is defined in the outer function. If callers know that VAR is
+ located in FRAME or is global/static, NULL can be passed as VAR_BLOCK.
+
+ Throw an error if the variable cannot be found. */
+
+ struct value *(*la_read_var_value) (struct symbol *var,
+ const struct block *var_block,
+ 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) (CORE_ADDR pc);
+ CORE_ADDR (*skip_trampoline) (struct frame_info *, CORE_ADDR);
/* Now come some hooks for lookup_symbol. */
- /* If this is non-NULL, lookup_symbol will do the 'field_of_this'
- check, using this function to find the value of this. */
-
- /* FIXME: carlton/2003-05-19: Audit all the language_defn structs
- to make sure we're setting this appropriately: I'm sure it
- could be NULL in more languages. */
+ /* If this is non-NULL, specifies the name that of the implicit
+ local variable that refers to the current object instance. */
- struct value *(*la_value_of_this) (int complain);
+ const 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 char *,
- const struct block *,
- const domain_enum,
- struct symtab **);
+ struct block_symbol (*la_lookup_symbol_nonlocal)
+ (const struct language_defn *,
+ 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);
- /* Base 2 (binary) formats. */
-
- struct language_format_info la_binary_format;
-
- /* Base 8 (octal) formats. */
+ /* Demangle a symbol according to this language's rules. Unlike
+ la_demangle, this does not take any options.
- struct language_format_info la_octal_format;
+ *DEMANGLED will be set by this function.
+
+ If this function returns 0, then *DEMANGLED must always be set
+ to NULL.
- /* Base 10 (decimal) formats */
+ If this function returns 1, the implementation may set this to
+ a xmalloc'd string holding the demangled form. However, it is
+ not required to. The string, if any, is owned by the caller.
- struct language_format_info la_decimal_format;
+ The resulting string should be of the form that will be
+ installed into a symbol. */
+ int (*la_sniff_from_mangled_name) (const char *mangled, char **demangled);
- /* Base 16 (hexadecimal) formats */
+ /* Return class name of a mangled method name or NULL. */
+ char *(*la_class_name_from_physname) (const char *physname);
- struct language_format_info la_hex_format;
-
- /* Table for printing expressions */
+ /* 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. */
+ 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. */
+ /* Index to use for extracting the first element of a string. */
char string_lower_bound;
- /* Type of elements of strings. */
- struct type **string_char_type;
-
- /* Add fields above this point, so the magic number is always last. */
- /* Magic number for compat checking */
+ /* The list of characters forming word boundaries. */
+ const char *(*la_word_break_characters) (void);
+
+ /* Add to the completion tracker 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. */
+ void (*la_collect_symbol_completion_matches)
+ (completion_tracker &tracker,
+ complete_symbol_mode mode,
+ 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 an expression that can be used for a location
+ watchpoint. TYPE is a pointer type that points to the memory
+ to watch, and ADDR is the address of the watched memory. */
+ gdb::unique_xmalloc_ptr<char> (*la_watch_location_expression)
+ (struct type *type, CORE_ADDR addr);
+
+ /* 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. If CALLBACK
+ returns false, 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,
+ gdb::function_view<symbol_found_callback_ftype> callback);
+
+ /* Various operations on varobj. */
+ const struct lang_varobj_ops *la_varobj_ops;
+
+ /* If this language allows compilation from the gdb command line,
+ this method should be non-NULL. When called it should return
+ an instance of struct gcc_context appropriate to the language.
+ When defined this method must never return NULL; instead it
+ should throw an exception on failure. The returned compiler
+ instance is owned by its caller and must be deallocated by
+ calling its 'destroy' method. */
+
+ struct compile_instance *(*la_get_compile_instance) (void);
+
+ /* This method must be defined if 'la_get_gcc_context' is defined.
+ If 'la_get_gcc_context' is not defined, then this method is
+ ignored.
+
+ This takes the user-supplied text and returns a new bit of code
+ to compile.
+
+ INST is the compiler instance being used.
+ INPUT is the user's input text.
+ GDBARCH is the architecture to use.
+ EXPR_BLOCK is the block in which the expression is being
+ parsed.
+ EXPR_PC is the PC at which the expression is being parsed. */
+
+ std::string (*la_compute_program) (struct compile_instance *inst,
+ const char *input,
+ struct gdbarch *gdbarch,
+ const struct block *expr_block,
+ CORE_ADDR expr_pc);
+
+ /* Add fields above this point, so the magic number is always last. */
+ /* Magic number for compat checking. */
long la_magic;
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);
+
+/* Look up type NAME in language L, and return its definition for architecture
+ GDBARCH. Returns NULL if not found. */
+
+struct type *language_lookup_primitive_type (const struct language_defn *l,
+ struct gdbarch *gdbarch,
+ const char *name);
+
+/* Wrapper around language_lookup_primitive_type to return the
+ corresponding symbol. */
+
+struct symbol *
+ language_lookup_primitive_type_as_symbol (const struct language_defn *l,
+ struct gdbarch *gdbarch,
+ const char *name);
+
\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? */
+/* 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 || \
- current_language->la_language == language_cplus || \
- current_language->la_language == language_objc)
+/* "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);
/* 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 create_fundamental_type(objfile,typeid) \
- (current_language->la_fund_type(objfile, typeid))
-
-#define LA_PRINT_TYPE(type,varstring,stream,show,level) \
- (current_language->la_print_type(type,varstring,stream,show,level))
-
-#define LA_VAL_PRINT(type,valaddr,offset,addr,stream,fmt,deref,recurse,pretty) \
- (current_language->la_val_print(type,valaddr,offset,addr,stream,fmt,deref, \
- recurse,pretty))
-#define LA_VALUE_PRINT(val,stream,fmt,pretty) \
- (current_language->la_value_print(val,stream,fmt,pretty))
-
-/* 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 LA_PRINT_CHAR(ch, stream) \
- (current_language->la_printchar(ch, stream))
-#define LA_PRINT_STRING(stream, string, length, width, force_ellipses) \
- (current_language->la_printstr(stream, string, length, width, force_ellipses))
-#define LA_EMIT_CHAR(ch, stream, quoter) \
- (current_language->la_emitchar(ch, stream, quoter))
+ 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_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) \
+ (current_language->la_iterate_over_symbols (BLOCK, NAME, DOMAIN, CALLBACK))
/* 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. */
+ 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_decimal_format_custom (char *); /* language.c */
-
-extern char *local_octal_format_custom (char *); /* language.c */
-
-extern char *local_hex_format_custom (char *); /* language.c */
-
-#if 0
-/* FIXME: cagney/2000-03-04: This function does not appear to be used.
- It can be deleted once 5.0 has been released. */
-/* Return a string that contains the hex digits of the number. No preceeding
- "0x" */
-
-extern char *longest_raw_hex_string (LONGEST);
-#endif
-
-/* 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 "08l" or "l". */
-
-extern char *local_hex_string (LONGEST); /* language.c */
+/* Type predicates */
-extern char *local_hex_string_custom (LONGEST, char *); /* language.c */
+extern int pointer_type (struct type *);
-/* Type predicates */
+/* Error messages */
-extern int simple_type (struct type *);
+extern void range_error (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
-extern int ordered_type (struct type *);
+/* Data: Does this value represent "truth" to the current language? */
-extern int same_type (struct type *, struct type *);
+extern int value_true (struct value *);
-extern int integral_type (struct type *);
+/* Misc: The string representing a particular enum language. */
-extern int numeric_type (struct type *);
+extern enum language language_enum (char *str);
-extern int character_type (struct type *);
+extern const struct language_defn *language_def (enum language);
-extern int boolean_type (struct type *);
+extern const char *language_str (enum language);
-extern int float_type (struct type *);
+/* Check for a language-specific trampoline. */
-extern int pointer_type (struct type *);
+extern CORE_ADDR skip_language_trampoline (struct frame_info *, CORE_ADDR pc);
-extern int structured_type (struct type *);
+/* Return demangled language symbol, or NULL. */
+extern char *language_demangle (const struct language_defn *current_language,
+ const char *mangled, int options);
-/* 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))
+/* A wrapper for la_sniff_from_mangled_name. The arguments and result
+ are as for the method. */
-extern void binop_type_check (struct value *, struct value *, int);
+extern int language_sniff_from_mangled_name (const struct language_defn *lang,
+ const char *mangled,
+ char **demangled);
-/* Error messages */
+/* Return class name from physname, or NULL. */
+extern char *language_class_name_from_physname (const struct language_defn *,
+ const char *physname);
-extern void op_error (const char *lhs, enum exp_opcode,
- const char *rhs);
+/* Splitting strings into words. */
+extern const char *default_word_break_characters (void);
-extern void type_error (const char *, ...) ATTR_FORMAT (printf, 1, 2);
+/* 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);
-extern void range_error (const char *, ...) ATTR_FORMAT (printf, 1, 2);
+/* Return non-zero if TYPE should be passed (and returned) by
+ reference at the language level. */
+int language_pass_by_reference (struct type *type);
-/* Data: Does this value represent "truth" to the current language? */
+/* 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);
-extern int value_true (struct value *);
+/* The default implementation of la_print_typedef. */
+void default_print_typedef (struct type *type, struct symbol *new_symbol,
+ struct ui_file *stream);
-extern struct type *lang_bool_type (void);
+void default_get_string (struct value *value, gdb_byte **buffer, int *length,
+ struct type **char_type, const char **charset);
-/* The type used for Boolean values in the current language. */
-#define LA_BOOL_TYPE lang_bool_type ()
+void c_get_string (struct value *value, gdb_byte **buffer, int *length,
+ struct type **char_type, const char **charset);
-/* Misc: The string representing a particular enum language. */
+/* The languages supported by GDB. */
-extern enum language language_enum (char *str);
+extern const struct language_defn auto_language_defn;
+extern const struct language_defn unknown_language_defn;
+extern const struct language_defn minimal_language_defn;
-extern const struct language_defn *language_def (enum language);
+extern const struct language_defn ada_language_defn;
+extern const struct language_defn asm_language_defn;
+extern const struct language_defn c_language_defn;
+extern const struct language_defn cplus_language_defn;
+extern const struct language_defn d_language_defn;
+extern const struct language_defn f_language_defn;
+extern const struct language_defn go_language_defn;
+extern const struct language_defn m2_language_defn;
+extern const struct language_defn objc_language_defn;
+extern const struct language_defn opencl_language_defn;
+extern const struct language_defn pascal_language_defn;
+extern const struct language_defn rust_language_defn;
-extern char *language_str (enum language);
+/* Save the current language and restore it upon destruction. */
-/* Add a language to the set known by GDB (at initialization time). */
+class scoped_restore_current_language
+{
+public:
-extern void add_language (const struct language_defn *);
+ explicit scoped_restore_current_language ()
+ : m_lang (current_language->la_language)
+ {
+ }
-extern enum language get_frame_language (void); /* In stack.c */
+ ~scoped_restore_current_language ()
+ {
+ set_language (m_lang);
+ }
-/* Check for a language-specific trampoline. */
+ scoped_restore_current_language (const scoped_restore_current_language &)
+ = delete;
+ scoped_restore_current_language &operator=
+ (const scoped_restore_current_language &) = delete;
-extern CORE_ADDR skip_language_trampoline (CORE_ADDR pc);
+private:
-/* Return demangled language symbol, or NULL. */
-extern char *language_demangle (const struct language_defn *current_language,
- const char *mangled, int options);
+ enum language m_lang;
+};
#endif /* defined (LANGUAGE_H) */
projects / deliverable / binutils-gdb.git / blobdiff