X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fparser-defs.h;h=c4eb1a042a814713e6788501e8d6b606211215b8;hb=cec808ecec654eb5c43ca6281ee5e08aca3f2a7b;hp=f2944027aebc51f40718f3a413c9bb5a75ad8bb8;hpb=ddf54546c961930d2e4fb9c70ec2da94d82ccff4;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/parser-defs.h b/gdb/parser-defs.h index f2944027ae..c4eb1a042a 100644 --- a/gdb/parser-defs.h +++ b/gdb/parser-defs.h @@ -1,44 +1,54 @@ /* Parser definitions for GDB. - Copyright (C) 1986, 1989, 1990, 1991 Free Software Foundation, Inc. + + Copyright (C) 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, + 1998, 1999, 2000, 2002, 2007, 2008, 2009, 2010 + Free Software Foundation, Inc. + Modified from expread.y 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 3 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, see . */ #if !defined (PARSER_DEFS_H) #define PARSER_DEFS_H 1 -struct std_regs { - char *name; - int regnum; -}; +#include "doublest.h" -extern struct std_regs std_regs[]; -extern unsigned num_std_regs; +struct block; + +extern int parser_debug; extern struct expression *expout; extern int expout_size; extern int expout_ptr; +#define parse_gdbarch (expout->gdbarch) +#define parse_language (expout->language_defn) + /* If this is nonzero, this block is used as the lexical context for symbol names. */ extern struct block *expression_context_block; +/* If expression_context_block is non-zero, then this is the PC within + the block that we want to evaluate expressions at. When debugging + C or C++ code, we use this to find the exact line we're at, and + then look up the macro definitions active at that point. */ +extern CORE_ADDR expression_context_pc; + /* The innermost context required by the stack and register variables we've encountered so far. */ extern struct block *innermost_block; @@ -62,6 +72,22 @@ struct stoken int length; }; +struct typed_stoken + { + /* A language-specific type field. */ + int type; + /* Pointer to first byte of char-string or first bit of bit-string */ + char *ptr; + /* Length of string in bytes for char-string or bits for bit-string */ + int length; + }; + +struct stoken_vector + { + int len; + struct typed_stoken *tokens; + }; + struct ttype { struct stoken stoken; @@ -75,69 +101,112 @@ struct symtoken int is_a_field_of_this; }; +struct objc_class_str + { + struct stoken stoken; + struct type *type; + int class; + }; + + /* For parsing of complicated types. An array should be preceded in the list by the size of the array. */ enum type_pieces - {tp_end = -1, tp_pointer, tp_reference, tp_array, tp_function}; + { + tp_end = -1, + tp_pointer, + tp_reference, + tp_array, + tp_function, + tp_const, + tp_volatile, + tp_space_identifier + }; /* The stack can contain either an enum type_pieces or an int. */ -union type_stack_elt { - enum type_pieces piece; - int int_val; -}; +union type_stack_elt + { + enum type_pieces piece; + int int_val; + }; extern union type_stack_elt *type_stack; extern int type_stack_depth, type_stack_size; -extern void write_exp_elt PARAMS ((union exp_element)); +extern void write_exp_elt (union exp_element); + +extern void write_exp_elt_opcode (enum exp_opcode); + +extern void write_exp_elt_sym (struct symbol *); + +extern void write_exp_elt_longcst (LONGEST); + +extern void write_exp_elt_dblcst (DOUBLEST); + +extern void write_exp_elt_decfloatcst (gdb_byte *); -extern void write_exp_elt_opcode PARAMS ((enum exp_opcode)); +extern void write_exp_elt_type (struct type *); -extern void write_exp_elt_sym PARAMS ((struct symbol *)); +extern void write_exp_elt_intern (struct internalvar *); -extern void write_exp_elt_longcst PARAMS ((LONGEST)); +extern void write_exp_string (struct stoken); -extern void write_exp_elt_dblcst PARAMS ((double)); +void write_exp_string_vector (int type, struct stoken_vector *vec); -extern void write_exp_elt_type PARAMS ((struct type *)); +extern void write_exp_bitstring (struct stoken); -extern void write_exp_elt_intern PARAMS ((struct internalvar *)); +extern void write_exp_elt_block (struct block *); -extern void write_exp_string PARAMS ((struct stoken)); +extern void write_exp_elt_objfile (struct objfile *objfile); -extern void write_exp_bitstring PARAMS ((struct stoken)); +extern void write_exp_msymbol (struct minimal_symbol *); -extern void write_exp_elt_block PARAMS ((struct block *)); +extern void write_dollar_variable (struct stoken str); -extern void write_exp_msymbol PARAMS ((struct minimal_symbol *, - struct type *, struct type *)); +extern void mark_struct_expression (void); -extern void -start_arglist PARAMS ((void)); +extern char *find_template_name_end (char *); -extern int -end_arglist PARAMS ((void)); +extern void start_arglist (void); -extern char * -copy_name PARAMS ((struct stoken)); +extern int end_arglist (void); -extern void -push_type PARAMS ((enum type_pieces)); +extern char *copy_name (struct stoken); -extern void -push_type_int PARAMS ((int)); +extern void push_type (enum type_pieces); -extern enum type_pieces -pop_type PARAMS ((void)); +extern void push_type_int (int); -extern int -pop_type_int PARAMS ((void)); +extern void push_type_address_space (char *); -extern struct type *follow_types PARAMS ((struct type *)); +extern enum type_pieces pop_type (void); + +extern int pop_type_int (void); + +extern int length_of_subexp (struct expression *, int); + +extern int dump_subexp (struct expression *, struct ui_file *, int); + +extern int dump_subexp_body_standard (struct expression *, + struct ui_file *, int); + +extern void operator_length (struct expression *, int, int *, int *); + +extern void operator_length_standard (struct expression *, int, int *, int *); + +extern char *op_name_standard (enum exp_opcode); + +extern struct type *follow_types (struct type *); + +extern void null_post_parser (struct expression **, int); /* During parsing of a C expression, the pointer to the next character is in this variable. */ extern char *lexptr; +/* After a token has been recognized, this variable points to it. + Currently used only for error reporting. */ +extern char *prev_lexptr; + /* Tokens that refer to names do so with explicit pointer and length, so they can share the storage that lexptr is parsing. @@ -166,24 +235,71 @@ extern int comma_terminates; they are used as the "surrounding precedence" to force various kinds of things to be parenthesized. */ enum precedence -{ PREC_NULL, PREC_COMMA, PREC_ABOVE_COMMA, PREC_ASSIGN, PREC_LOGICAL_OR, - PREC_LOGICAL_AND, PREC_BITWISE_IOR, PREC_BITWISE_AND, PREC_BITWISE_XOR, - PREC_EQUAL, PREC_ORDER, PREC_SHIFT, PREC_ADD, PREC_MUL, PREC_REPEAT, - PREC_HYPER, PREC_PREFIX, PREC_SUFFIX }; + { + PREC_NULL, PREC_COMMA, PREC_ABOVE_COMMA, PREC_ASSIGN, PREC_LOGICAL_OR, + PREC_LOGICAL_AND, PREC_BITWISE_IOR, PREC_BITWISE_AND, PREC_BITWISE_XOR, + PREC_EQUAL, PREC_ORDER, PREC_SHIFT, PREC_ADD, PREC_MUL, PREC_REPEAT, + PREC_HYPER, PREC_PREFIX, PREC_SUFFIX, PREC_BUILTIN_FUNCTION + }; /* Table mapping opcodes into strings for printing operators and precedences of the operators. */ struct op_print -{ - char *string; - enum exp_opcode opcode; - /* Precedence of operator. These values are used only by comparisons. */ - enum precedence precedence; - - /* For a binary operator: 1 iff right associate. - For a unary operator: 1 iff postfix. */ - int right_assoc; -}; - -#endif /* PARSER_DEFS_H */ + { + char *string; + enum exp_opcode opcode; + /* Precedence of operator. These values are used only by comparisons. */ + enum precedence precedence; + + /* For a binary operator: 1 iff right associate. + For a unary operator: 1 iff postfix. */ + int right_assoc; + }; + +/* Information needed to print, prefixify, and evaluate expressions for + a given language. */ + +struct exp_descriptor + { + /* Print subexpression. */ + void (*print_subexp) (struct expression *, int *, struct ui_file *, + enum precedence); + + /* Returns number of exp_elements needed to represent an operator and + the number of subexpressions it takes. */ + void (*operator_length) (struct expression*, int, int*, int *); + + /* Name of this operator for dumping purposes. */ + char *(*op_name) (enum exp_opcode); + + /* Dump the rest of this (prefix) expression after the operator + itself has been printed. See dump_subexp_body_standard in + (expprint.c). */ + int (*dump_subexp_body) (struct expression *, struct ui_file *, int); + + /* Evaluate an expression. */ + struct value *(*evaluate_exp) (struct type *, struct expression *, + int *, enum noside); + }; + + +/* Default descriptor containing standard definitions of all + elements. */ +extern const struct exp_descriptor exp_descriptor_standard; + +/* Functions used by language-specific extended operators to (recursively) + print/dump subexpressions. */ + +extern void print_subexp (struct expression *, int *, struct ui_file *, + enum precedence); + +extern void print_subexp_standard (struct expression *, int *, + struct ui_file *, enum precedence); + +/* Function used to avoid direct calls to fprintf + in the code generated by the bison parser. */ + +extern void parser_fprintf (FILE *, const char *, ...) ATTR_FORMAT (printf, 2 ,3); + +#endif /* PARSER_DEFS_H */