/* Source-language-related definitions for GDB.
- Copyright 1991, 1992 Free Software Foundation, Inc.
+
+ Copyright (C) 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2003, 2004,
+ 2007, 2008, 2009, 2010, 2011 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 */
struct value;
struct objfile;
+struct frame_info;
struct expression;
-/* 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 shortcutted to configure for all of them. FIXME. */
-/* #include "lang_def.h" */
-#define _LANG_c
-#define _LANG_m2
-#define _LANG_chill
-#define _LANG_fortran
+struct ui_file;
+struct value_print_options;
#define MAX_FORTRAN_DIMS 7 /* Maximum number of F77 array dims */
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
+/* 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
{
- /* 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. */
+ case_mode_auto, case_mode_manual
+ }
+case_mode;
- char *la_format;
+/* array_ordering ==
+ array_row_major: Arrays are in row major order
+ array_column_major: Arrays are in column major order.*/
- /* 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). */
+extern enum array_ordering
+ {
+ array_row_major, array_column_major
+ }
+array_ordering;
- 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. */
+/* 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;
- 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). */
+/* macro_expansion ==
+ macro_expansion_no: No macro expansion is available
+ macro_expansion_c: C-like macro expansion is available */
- char *la_format_suffix; /* Suffix for custom format string */
+enum macro_expansion
+ {
+ macro_expansion_no, macro_expansion_c
};
+\f
+/* 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;
+};
+
/* Structure tying together assorted information about a language. */
struct language_defn
enum language la_language;
- /* 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. */
-
- struct type **const *la_builtin_type_vector;
-
/* Default range checking */
enum range_check la_range_check;
enum type_check la_type_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) PARAMS ((void));
+ int (*la_parser) (void);
/* Parser error function */
- void (*la_error) PARAMS ((char *));
+ void (*la_error) (char *);
- /* Evaluate an expression. */
- struct value *(*evaluate_exp) PARAMS ((struct type *, struct expression *,
- int *, enum noside));
+ /* 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_printchar) PARAMS ((int ch, GDB_FILE * stream));
+ void (*la_post_parser) (struct expression ** expp, int void_context_p);
- void (*la_printstr) PARAMS ((GDB_FILE * stream, char *string,
- unsigned int length, int width,
- int force_ellipses));
+ void (*la_printchar) (int ch, struct type *chtype,
+ struct ui_file * stream);
- void (*la_emitchar) PARAMS ((int ch, GDB_FILE * stream, int quoter));
+ 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 *);
- struct type *(*la_fund_type) PARAMS ((struct objfile *, int));
+ 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) PARAMS ((struct type *, char *, GDB_FILE *, int, int));
+ void (*la_print_type) (struct type *, const char *, struct ui_file *, int,
+ int);
+
+ /* 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. */
+ /* Print a value using syntax appropriate for this language.
+
+ TYPE is the type of the sub-object to be printed.
- int (*la_val_print) PARAMS ((struct type *, char *, int, CORE_ADDR, GDB_FILE *,
- int, int, int, enum val_prettyprint));
+ 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. */
+
+ int (*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. */
- int (*la_value_print) PARAMS ((struct value *, GDB_FILE *,
- int, enum val_prettyprint));
+ int (*la_value_print) (struct value *, struct ui_file *,
+ const struct value_print_options *);
+
+ /* 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);
- /* Base 2 (binary) formats. */
+ /* Now come some hooks for lookup_symbol. */
- struct language_format_info la_binary_format;
+ /* If this is non-NULL, specifies the name that of the implicit
+ local variable that refers to the current object instance. */
- /* Base 8 (octal) formats. */
+ char *la_name_of_this;
- struct language_format_info la_octal_format;
+ /* 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. */
- /* Base 10 (decimal) formats */
+ struct symbol *(*la_lookup_symbol_nonlocal) (const char *,
+ const struct block *,
+ const domain_enum);
- struct language_format_info la_decimal_format;
+ /* Find the definition of the type with the given name. */
+ struct type *(*la_lookup_transparent_type) (const char *);
- /* Base 16 (hexadecimal) formats */
+ /* Return demangled language symbol, or NULL. */
+ char *(*la_demangle) (const char *mangled, int options);
- struct language_format_info la_hex_format;
+ /* Return class name of a mangled method name or NULL. */
+ char *(*la_class_name_from_physname) (const char *physname);
/* Table for printing expressions */
/* 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;
+ /* The list of characters forming word boundaries. */
+ char *(*la_word_break_characters) (void);
+
+ /* Should return a NULL terminated array of all symbols which
+ are possible completions for TEXT. WORD is the entire command
+ on which the completion is being made. */
+ char **(*la_make_symbol_completion_list) (char *text, char *word);
+
+ /* 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);
/* Add fields above this point, so the magic number is always last. */
/* Magic number for compat checking */
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 seprate setting from the current_language. */
+ C++), it should be a separate setting from the current_language. */
extern const struct language_defn *current_language;
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);
+
\f
/* These macros define the behaviour of the expression
evaluator. */
/* "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)
+#define CAST_IS_CONVERSION(LANG) ((LANG)->la_language == language_c || \
+ (LANG)->la_language == language_cplus || \
+ (LANG)->la_language == language_objc)
-extern void
-language_info PARAMS ((int));
+extern void language_info (int);
-extern enum language
-set_language PARAMS ((enum language));
+extern enum language set_language (enum language);
\f
/* This page contains functions that return things that are
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))
+#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))
/* Test a character to decide whether it can be printed in literal form
or needs to be printed in another representation. For example,
&& ((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 PARAMS ((char *)); /* language.c */
-
-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 the hex digits of the number. No preceeding
- "0x" */
+/* Type predicates */
-extern char *
- longest_raw_hex_string PARAMS ((LONGEST));
+extern int simple_type (struct type *);
-/* 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 int ordered_type (struct type *);
-extern char *
- local_hex_string PARAMS ((unsigned long)); /* language.c */
+extern int same_type (struct type *, struct type *);
-extern char *
- longest_local_hex_string PARAMS ((LONGEST)); /* language.c */
+extern int integral_type (struct type *);
-extern char *
- local_hex_string_custom PARAMS ((unsigned long, char *)); /* language.c */
+extern int numeric_type (struct type *);
-extern char *
- longest_local_hex_string_custom PARAMS ((LONGEST, char *)); /* language.c */
+extern int character_type (struct type *);
-/* Type predicates */
+extern int boolean_type (struct type *);
-extern int
-simple_type PARAMS ((struct type *));
+extern int float_type (struct type *);
-extern int
-ordered_type PARAMS ((struct type *));
+extern int pointer_type (struct type *);
-extern int
-same_type PARAMS ((struct type *, struct type *));
+extern int structured_type (struct type *);
-extern int
-integral_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 int
-numeric_type PARAMS ((struct type *));
+extern void binop_type_check (struct value *, struct value *, int);
-extern int
-character_type PARAMS ((struct type *));
+/* Error messages */
-extern int
-boolean_type PARAMS ((struct type *));
+extern void type_error (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
-extern int
-float_type PARAMS ((struct type *));
+extern void range_error (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
-extern int
-pointer_type PARAMS ((struct type *));
+/* Data: Does this value represent "truth" to the current language? */
-extern int
-structured_type PARAMS ((struct type *));
+extern int value_true (struct value *);
-/* 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))
+/* Misc: The string representing a particular enum language. */
-extern void
-binop_type_check PARAMS ((struct value *, struct value *, int));
+extern enum language language_enum (char *str);
-/* Error messages */
+extern const struct language_defn *language_def (enum language);
-extern void
-op_error PARAMS ((char *fmt, enum exp_opcode, int));
+extern char *language_str (enum language);
-#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)
+/* Add a language to the set known by GDB (at initialization time). */
-extern void
- type_error
-PARAMS ((char *,...))
-ATTR_FORMAT (printf, 1, 2);
+extern void add_language (const struct language_defn *);
- void
- range_error PARAMS ((char *,...))
- ATTR_FORMAT (printf, 1, 2);
+extern enum language get_frame_language (void); /* In stack.c */
-/* Data: Does this value represent "truth" to the current language? */
+/* Check for a language-specific trampoline. */
- extern int
- value_true PARAMS ((struct value *));
+extern CORE_ADDR skip_language_trampoline (struct frame_info *, CORE_ADDR pc);
- extern struct type *lang_bool_type PARAMS ((void));
+/* Return demangled language symbol, or NULL. */
+extern char *language_demangle (const struct language_defn *current_language,
+ const char *mangled, int options);
-/* The type used for Boolean values in the current language. */
-#define LA_BOOL_TYPE lang_bool_type ()
+/* Return class name from physname, or NULL. */
+extern char *language_class_name_from_physname (const struct language_defn *,
+ const char *physname);
-/* Misc: The string representing a particular enum language. */
+/* Splitting strings into words. */
+extern char *default_word_break_characters (void);
- extern enum language language_enum PARAMS ((char *str));
+/* 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 const struct language_defn *language_def PARAMS ((enum language));
+/* Return non-zero if TYPE should be passed (and returned) by
+ reference at the language level. */
+int language_pass_by_reference (struct type *type);
- extern char *language_str PARAMS ((enum 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);
-/* Add a language to the set known by GDB (at initialization time). */
+/* The default implementation of la_print_typedef. */
+void default_print_typedef (struct type *type, struct symbol *new_symbol,
+ struct ui_file *stream);
- extern void
- add_language PARAMS ((const struct language_defn *));
+void default_get_string (struct value *value, gdb_byte **buffer, int *length,
+ struct type **char_type, const char **charset);
- extern enum language
- get_frame_language PARAMS ((void)); /* In stack.c */
+void c_get_string (struct value *value, gdb_byte **buffer, int *length,
+ struct type **char_type, const char **charset);
#endif /* defined (LANGUAGE_H) */
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