X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Flanguage.h;h=aa0523b4899b51ecab8ef7ab7f1d43cbee1f2ac8;hb=8901a3cd7d56bb4e90007759a66951fffe7ce38f;hp=67a8ff26afe0ee7065c559d4f6ff2fcc1b8ce704;hpb=db034ac5129e86e2dfccebe047f0ee50fd933ec9;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/language.h b/gdb/language.h index 67a8ff26af..aa0523b489 100644 --- a/gdb/language.h +++ b/gdb/language.h @@ -1,6 +1,8 @@ /* Source-language-related definitions for GDB. - Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000 - 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. @@ -8,7 +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, @@ -17,9 +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., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ + along with this program. If not, see . */ #if !defined (LANGUAGE_H) #define LANGUAGE_H 1 @@ -27,17 +27,10 @@ /* 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 left out to configure for all of them. FIXME. */ -/* #include "lang_def.h" */ -#define _LANG_c -#define _LANG_m2 -/* OBSOLETE #define _LANG_chill */ -#define _LANG_fortran -#define _LANG_pascal +struct ui_file; +struct value_print_options; #define MAX_FORTRAN_DIMS 7 /* Maximum number of F77 array dims */ @@ -93,6 +86,17 @@ 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 */ @@ -102,38 +106,36 @@ extern enum case_sensitivity case_sensitive_on, case_sensitive_off } case_sensitivity; - -/* Information for doing language dependent formatting of printed values. */ -struct language_format_info - { - /* 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. */ - - char *la_format; - - /* 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). */ - - 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. */ +/* macro_expansion == + macro_expansion_no: No macro expansion is available + macro_expansion_c: C-like macro expansion is available */ - 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). */ - - char *la_format_suffix; /* Suffix for custom format string */ +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; +}; + /* Structure tying together assorted information about a language. */ struct language_defn @@ -146,13 +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; @@ -164,6 +159,17 @@ struct language_defn /* 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); @@ -172,51 +178,98 @@ struct language_defn void (*la_error) (char *); - /* Evaluate an expression. */ - struct value *(*evaluate_exp) (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) (int ch, struct ui_file * stream); + void (*la_post_parser) (struct expression ** expp, int void_context_p); - void (*la_printstr) (struct ui_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) (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, + const char *encoding, 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, + void (*la_print_type) (struct type *, const 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); - int (*la_val_print) (struct type *, char *, int, CORE_ADDR, - struct ui_file *, int, int, int, - enum val_prettyprint); + /* 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. */ + + 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) (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) (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 */ @@ -230,8 +283,39 @@ 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 *); + + /* 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 */ @@ -275,6 +359,17 @@ 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. */ @@ -287,8 +382,9 @@ language_mode; /* "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 (int); @@ -300,65 +396,30 @@ 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)) - -/* 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, 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, @@ -371,34 +432,6 @@ extern enum language set_language (enum language); && ((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 */ - -extern char *local_hex_string_custom (LONGEST, char *); /* language.c */ - /* Type predicates */ extern int simple_type (struct type *); @@ -429,26 +462,14 @@ extern void binop_type_check (struct value *, struct value *, int); /* Error messages */ -extern void op_error (char *fmt, enum exp_opcode, int); - -#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) +extern void type_error (const char *, ...) ATTRIBUTE_PRINTF (1, 2); -extern void type_error (const char *, ...) ATTR_FORMAT (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); @@ -463,4 +484,43 @@ 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) */