/* Source-language-related definitions for GDB.
- Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2003,
- 2004 Free Software Foundation, Inc.
+ Copyright (C) 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2003, 2004,
+ 2007, 2008, 2009, 2010 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;
struct ui_file;
-
-/* 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
+struct value_print_options;
#define MAX_FORTRAN_DIMS 7 /* Maximum number of F77 array dims */
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
+ };
+
\f
/* Per architecture (OS/ABI) language information. */
struct type **primitive_type_vector;
/* Type of elements of strings. */
struct type *string_char_type;
-};
-
-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);
+ /* 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. */
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;
/* 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 */
void (*la_post_parser) (struct expression ** expp, int void_context_p);
- void (*la_printchar) (int ch, struct ui_file * stream);
+ void (*la_printchar) (int ch, struct type *chtype, struct ui_file * stream);
- void (*la_printstr) (struct ui_file * stream, char *string,
- unsigned int length, int width,
- int force_ellipses);
+ 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 ui_file * stream, int quoter);
-
- struct type *(*la_fund_type) (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) (struct type *, char *, struct ui_file *, int,
int);
- /* Print a value using syntax appropriate for this language. */
+ /* 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.
- int (*la_val_print) (struct type *, char *, int, CORE_ADDR,
- struct ui_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_print_options *options);
/* Print a top-level value using syntax appropriate for this language. */
int (*la_value_print) (struct value *, struct ui_file *,
- int, enum val_prettyprint);
+ 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) (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);
+ 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 **);
+ const domain_enum);
/* Find the definition of the type with the given name. */
struct type *(*la_lookup_transparent_type) (const char *);
/* 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 */
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 || \
- current_language->la_language == language_objc)
+#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);
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))
+#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,recurse,options) \
+ (current_language->la_val_print(type,valaddr,offset,addr,stream, \
+ 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_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_ARRAY_INDEX(index_value, stream, optins) \
+ (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))
-#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 as a hex string */
-
-extern char *hex_string (LONGEST); /* language.c */
-
-extern char *hex_string_custom (LONGEST, int); /* language.c */
-
/* Type predicates */
extern int simple_type (struct type *);
/* Error messages */
-extern void op_error (const char *lhs, enum exp_opcode,
- const char *rhs);
-
-extern void type_error (const char *, ...) ATTR_FORMAT (printf, 1, 2);
+extern void type_error (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
-extern void range_error (const char *, ...) ATTR_FORMAT (printf, 1, 2);
+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 *);
-extern struct type *lang_bool_type (void);
-
-/* The type used for Boolean values in the current language. */
-#define LA_BOOL_TYPE lang_bool_type ()
-
/* Misc: The string representing a particular enum language. */
extern enum language language_enum (char *str);
/* Check for a language-specific trampoline. */
-extern CORE_ADDR skip_language_trampoline (CORE_ADDR pc);
+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,
/* 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) */