X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Flanguage.h;h=241fb01036308cc08747af0f679367915059b14d;hb=4ee62156d969867d3d3ffedf656a74643f77279e;hp=b40f855445c90de3af7d57bac7e855b0549c1bc1;hpb=6aba47ca06d9150c6196a374b745c2711b46e045;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/language.h b/gdb/language.h index b40f855445..241fb01036 100644 --- a/gdb/language.h +++ b/gdb/language.h @@ -1,7 +1,7 @@ /* Source-language-related definitions for GDB. Copyright (C) 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2003, 2004, - 2007 Free Software Foundation, Inc. + 2007, 2008, 2009 Free Software Foundation, Inc. Contributed by the Department of Computer Science at the State University of New York at Buffalo. @@ -10,7 +10,7 @@ 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, @@ -19,9 +19,7 @@ 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., 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301, USA. */ + along with this program. If not, see . */ #if !defined (LANGUAGE_H) #define LANGUAGE_H 1 @@ -29,18 +27,10 @@ /* 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 */ @@ -116,6 +106,17 @@ 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. */ @@ -128,14 +129,12 @@ struct language_arch_info 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. */ @@ -149,13 +148,6 @@ 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; @@ -170,6 +162,9 @@ struct language_defn /* 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 */ @@ -191,48 +186,51 @@ struct language_defn void (*la_post_parser) (struct expression ** expp, int void_context_p); - void (*la_printchar) (int ch, struct ui_file * stream); - - void (*la_printstr) (struct ui_file * stream, const gdb_byte *string, - unsigned int length, int width, - int force_ellipses); + void (*la_printchar) (int ch, struct type *chtype, struct ui_file * stream); - void (*la_emitchar) (int ch, struct ui_file * stream, int quoter); + void (*la_printstr) (struct ui_file * stream, struct type *elttype, + const gdb_byte *string, unsigned int length, + int force_ellipses, + const struct value_print_options *); - 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 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. */ int (*la_val_print) (struct type *, const gdb_byte *, int, CORE_ADDR, - struct ui_file *, int, int, int, - enum val_prettyprint); + struct ui_file *, int, + const struct value_print_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 @@ -241,8 +239,7 @@ struct language_defn 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 *); @@ -265,12 +262,14 @@ struct language_defn /* 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 *); @@ -278,8 +277,24 @@ struct language_defn /* Print the index of an element of an array. */ void (*la_print_array_index) (struct value *index_value, struct ui_file *stream, - int format, - enum val_prettyprint pretty); + 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 */ @@ -323,6 +338,17 @@ 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. */ @@ -349,27 +375,30 @@ extern enum language set_language (enum language); 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_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_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_ARRAY_INDEX(index_value, stream, format, pretty) \ - (current_language->la_print_array_index(index_value, stream, format, pretty)) +#define LA_PRINT_CHAR(ch, type, stream) \ + (current_language->la_printchar(ch, type, stream)) +#define LA_PRINT_STRING(stream, elttype, string, length, force_ellipses,options) \ + (current_language->la_printstr(stream, elttype, string, length, \ + 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, 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, @@ -382,15 +411,6 @@ extern enum language set_language (enum language); && ((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 - /* Type predicates */ extern int simple_type (struct type *); @@ -421,9 +441,6 @@ extern void binop_type_check (struct value *, struct value *, int); /* 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 range_error (const char *, ...) ATTR_FORMAT (printf, 1, 2); @@ -432,11 +449,6 @@ extern void range_error (const char *, ...) ATTR_FORMAT (printf, 1, 2); 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); @@ -453,7 +465,7 @@ extern enum language get_frame_language (void); /* In stack.c */ /* 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, @@ -469,7 +481,25 @@ 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, - int format, - enum val_prettyprint pretty); + 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) */