X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Flanguage.h;h=01d75bd9618f3a9fe4d77e046963168fb28b8269;hb=60e955f1b0b88195ff1948ef2f9d33d914902c22;hp=2cc6a3bb605b2c0ecdf3b99d1ea66f2411dda8a0;hpb=2e66cf7d6d84711159b3091ba693a969e6ecb50b;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/language.h b/gdb/language.h index 2cc6a3bb60..01d75bd961 100644 --- a/gdb/language.h +++ b/gdb/language.h @@ -1,46 +1,55 @@ /* Source-language-related definitions for GDB. - Copyright 1991, 1992 Free Software Foundation, Inc. + Copyright 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000 + Free Software Foundation, Inc. Contributed by the Department of Computer Science at the State University of New York at Buffalo. -This file is part of GDB. + This file is part of GDB. -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 -(at your option) any later version. + 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 + (at your option) any later version. -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ + 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. */ #if !defined (LANGUAGE_H) #define LANGUAGE_H 1 -#ifdef __STDC__ /* Forward decls for prototypes */ +/* Forward decls for prototypes */ struct value; -/* enum exp_opcode; ANSI's `wisdom' didn't include forward enum decls. */ -#endif +struct objfile; +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. */ + languages. Now it is left out to configure for all of them. FIXME. */ /* #include "lang_def.h" */ #define _LANG_c #define _LANG_m2 -/* start-sanitize-chill */ #define _LANG_chill -/* end-sanitize-chill */ +#define _LANG_fortran +#define _LANG_pascal + +#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_mode_manual: range_check set manually by user. */ -extern enum range_mode {range_mode_auto, range_mode_manual} range_mode; +extern enum range_mode + { + range_mode_auto, range_mode_manual + } +range_mode; /* range_check == range_check_on: Ranges are checked in GDB expressions, producing errors. @@ -48,13 +57,20 @@ extern enum range_mode {range_mode_auto, range_mode_manual} range_mode; range_check_off: Ranges are not checked in GDB expressions. */ extern enum range_check - {range_check_off, range_check_warn, range_check_on} range_check; + { + range_check_off, range_check_warn, range_check_on + } +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; +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. @@ -62,72 +78,185 @@ extern enum type_mode {type_mode_auto, type_mode_manual} type_mode; 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; + { + 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_manual: case_sensitivity set only by user. */ + +extern enum case_mode + { + case_mode_auto, case_mode_manual + } +case_mode; + +/* 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; /* 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. */ + { + /* 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; + 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). */ + /* 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; + 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. */ + /* 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. */ - char *la_format_specifier; + 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). */ + /* 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 */ -}; + char *la_format_suffix; /* Suffix for custom format string */ + }; /* Structure tying together assorted information about a language. */ -struct language_defn { - char * la_name; /* Name of the language */ - enum language la_language; /* its symtab language-enum (defs.h) */ - struct type ** const - *la_builtin_type_vector; /* Its builtin types */ - enum range_check la_range_check; /* Default range checking */ - enum type_check la_type_check; /* Default type checking */ - int (*la_parser) PARAMS((void)); /* Parser function */ - void (*la_error) PARAMS ((char *)); /* Parser error function */ - struct type **la_longest_int; /* Longest signed integral type */ - struct type **la_longest_unsigned_int; /* Longest uns integral type */ - struct type **la_longest_float; /* Longest floating point type */ - struct language_format_info - la_binary_format; /* Base 2 (binary) formats. */ - struct language_format_info - la_octal_format; /* Base 8 (octal) formats. */ - struct language_format_info - la_decimal_format; /* Base 10 (decimal) formats */ - struct language_format_info - la_hex_format; /* Base 16 (hexadecimal) formats */ - const struct op_print - *la_op_print_tab; /* Table for printing expressions */ -/* Add fields above this point, so the magic number is always last. */ - long la_magic; /* Magic number for compat checking */ -}; +struct language_defn + { + /* Name of the language */ + + char *la_name; + + /* its symtab language-enum (defs.h) */ + + 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; + + /* Default type checking */ + + enum type_check la_type_check; + + /* Default case sensitivity */ + enum case_sensitivity la_case_sensitivity; + + /* Parser function. */ + + int (*la_parser) (void); + + /* Parser error function */ + + void (*la_error) (char *); + + /* Evaluate an expression. */ + struct value *(*evaluate_exp) (struct type *, struct expression *, + int *, enum noside); + + void (*la_printchar) (int ch, struct ui_file * stream); + + void (*la_printstr) (struct ui_file * stream, char *string, + unsigned int length, int width, + int force_ellipses); + + void (*la_emitchar) (int ch, struct ui_file * stream, int quoter); + + struct type *(*la_fund_type) (struct objfile *, int); + + /* 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. */ + + int (*la_val_print) (struct type *, char *, int, CORE_ADDR, + struct ui_file *, int, int, int, + enum val_prettyprint); + + /* Print a top-level value using syntax appropriate for this language. */ + + int (*la_value_print) (struct value *, struct ui_file *, + int, enum val_prettyprint); + + /* Base 2 (binary) formats. */ + + struct language_format_info la_binary_format; + + /* Base 8 (octal) formats. */ + + struct language_format_info la_octal_format; + + /* Base 10 (decimal) formats */ + + struct language_format_info la_decimal_format; + + /* Base 16 (hexadecimal) formats */ + + struct language_format_info la_hex_format; + + /* 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. */ + + char c_style_arrays; + + /* 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 */ + + long la_magic; + + }; #define LANG_MAGIC 910823L /* Pointer to the language_defn for our current language. This pointer always points to *some* valid struct; it can be used without checking - it for validity. */ + it for validity. + + The current language affects expression parsing and evaluation + (FIXME: it might be cleaner to make the evaluation-related stuff + separate exp_opcodes for each different set of semantics. We + should at least think this through more clearly with respect to + what happens if the language is changed between parsing and + evaluation) and printing of things like types and arrays. It does + *not* affect symbol-reading-- each source file in a symbol-file has + 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 separate setting from the current_language. */ extern const struct language_defn *current_language; @@ -138,11 +267,14 @@ extern const struct language_defn *expected_language; /* language_mode == language_mode_auto: current_language automatically set upon selection - of scope (e.g. stack frame) + of scope (e.g. stack frame) language_mode_manual: current_language set only by user. */ extern enum language_mode - {language_mode_auto, language_mode_manual} language_mode; + { + language_mode_auto, language_mode_manual + } +language_mode; /* These macros define the behaviour of the expression evaluator. */ @@ -155,24 +287,30 @@ extern enum language_mode /* "cast" really means conversion */ /* FIXME -- should be a setting in language_defn */ -#define CAST_IS_CONVERSION (current_language->la_language == language_c) - -extern void -language_info PARAMS ((int)); +#define CAST_IS_CONVERSION (current_language->la_language == language_c || \ + current_language->la_language == language_cplus) -extern void -set_language PARAMS ((enum language)); +extern void language_info (int); +extern enum language set_language (enum language); + /* 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. */ -/* Returns some built-in types */ -#define longest_int() (*current_language->la_longest_int) -#define longest_unsigned_int() (*current_language->la_longest_unsigned_int) -#define longest_float() (*current_language->la_longest_float) +#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 @@ -215,104 +353,120 @@ set_language PARAMS ((enum language)); #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)) + +/* 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. */ + +#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_octal_format_custom PARAMS ((char *)); /* language.c */ +extern char *local_decimal_format_custom (char *); /* language.c */ + +extern char *local_octal_format_custom (char *); /* language.c */ -extern char * -local_hex_format_custom PARAMS ((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 "08" or "l". */ + the next call. Takes printf options like "08l" or "l". */ -extern char * -local_octal_string PARAMS ((int)); /* language.c */ +extern char *local_hex_string (unsigned long); /* language.c */ -extern char * -local_octal_string_custom PARAMS ((int, char *));/* language.c */ +extern char *longest_local_hex_string (LONGEST); /* language.c */ -extern char * -local_hex_string PARAMS ((int)); /* language.c */ +extern char *local_hex_string_custom (unsigned long, char *); /* language.c */ -extern char * -local_hex_string_custom PARAMS ((int, char *)); /* language.c */ +extern char *longest_local_hex_string_custom (LONGEST, char *); /* language.c */ /* Type predicates */ -extern int -simple_type PARAMS ((struct type *)); +extern int simple_type (struct type *); -extern int -ordered_type PARAMS ((struct type *)); +extern int ordered_type (struct type *); -extern int -same_type PARAMS ((struct type *, struct type *)); +extern int same_type (struct type *, struct type *); -extern int -integral_type PARAMS ((struct type *)); +extern int integral_type (struct type *); -extern int -numeric_type PARAMS ((struct type *)); +extern int numeric_type (struct type *); -extern int -character_type PARAMS ((struct type *)); +extern int character_type (struct type *); -extern int -boolean_type PARAMS ((struct type *)); +extern int boolean_type (struct type *); -extern int -float_type PARAMS ((struct type *)); +extern int float_type (struct type *); -extern int -pointer_type PARAMS ((struct type *)); +extern int pointer_type (struct type *); -extern int -structured_type PARAMS ((struct type *)); +extern int structured_type (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 void -binop_type_check PARAMS ((struct value *, struct value *, int)); +extern void binop_type_check (struct value *, struct value *, int); /* Error messages */ -extern void -op_error PARAMS ((char *fmt, enum exp_opcode, int)); +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 (); +extern void type_error (char *, ...) ATTR_FORMAT (printf, 1, 2); void -range_error (); +range_error (char *, ...) +ATTR_FORMAT (printf, 1, 2); /* Data: Does this value represent "truth" to the current language? */ -extern int -value_true PARAMS ((struct value *)); +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 char * -language_str PARAMS ((enum language)); +extern enum language language_enum (char *str); + +extern const struct language_defn *language_def (enum language); + +extern char *language_str (enum language); /* Add a language to the set known by GDB (at initialization time). */ -extern void -add_language PARAMS ((const struct language_defn *)); +extern void add_language (const struct language_defn *); -extern enum language -get_frame_language PARAMS ((void)); /* In stack.c */ +extern enum language get_frame_language (void); /* In stack.c */ -#endif /* defined (LANGUAGE_H) */ +#endif /* defined (LANGUAGE_H) */