410a0ff2df
This commit removes the "expout*" globals from our parser code, turning them into a structure that is passed when an expression needs to be evaluated. This is the initial step to make our parser less "globalized". This is mostly a mechanical patch, which creates a structure containing the "expout*" globals and then modify all the functions that handle them in order to take the structure as argument. It is big, and has been reviewed at least 4 times, so I think everything is covered. Below you can see the message links from the discussions: - First attempt: <https://sourceware.org/ml/gdb-patches/2012-01/msg00522.html> Message-ID: <m3k44s7qej.fsf@gmail.com> - Second attempt: <https://sourceware.org/ml/gdb-patches/2012-06/msg00054.html> Message-Id: <1338665528-5932-1-git-send-email-sergiodj@redhat.com> - Third attempt: <https://sourceware.org/ml/gdb-patches/2014-01/msg00949.html> Message-Id: <1390629467-27139-1-git-send-email-sergiodj@redhat.com> - Fourth (last) attempt: <https://sourceware.org/ml/gdb-patches/2014-03/msg00546.html> Message-Id: <1395463432-29750-1-git-send-email-sergiodj@redhat.com> gdb/ 2014-03-27 Sergio Durigan Junior <sergiodj@redhat.com> Remove some globals from our parser. * language.c (unk_lang_parser): Add "struct parser_state" argument. * language.h (struct language_defn) <la_parser>: Likewise. * parse.c (expout, expout_size, expout_ptr): Remove variables. (initialize_expout): Add "struct parser_state" argument. Rewrite function to use the parser state. (reallocate_expout, write_exp_elt, write_exp_elt_opcode, write_exp_elt_sym, write_exp_elt_block, write_exp_elt_objfile, write_exp_elt_longcst, write_exp_elt_dblcst, write_exp_elt_decfloatcst, write_exp_elt_type, write_exp_elt_intern, write_exp_string, write_exp_string_vector, write_exp_bitstring, write_exp_msymbol, mark_struct_expression, write_dollar_variable): Likewise. (parse_exp_in_context_1): Use parser state. (insert_type_address_space): Add "struct parser_state" argument. Use parser state. (increase_expout_size): New function. * parser-defs.h: Forward declare "struct language_defn" and "struct parser_state". (expout, expout_size, expout_ptr): Remove extern declarations. (parse_gdbarch, parse_language): Rewrite macro declarations to accept the parser state. (struct parser_state): New struct. (initialize_expout, reallocate_expout, write_exp_elt_opcode, write_exp_elt_sym, write_exp_elt_longcst, write_exp_elt_dblcst, write_exp_elt_decfloatcst, write_exp_elt_type, write_exp_elt_intern, write_exp_string, write_exp_string_vector, write_exp_bitstring, write_exp_elt_block, write_exp_elt_objfile, write_exp_msymbol, write_dollar_variable, mark_struct_expression, insert_type_address_space): Add "struct parser_state" argument. (increase_expout_size): New function. * utils.c (do_clear_parser_state): New function. (make_cleanup_clear_parser_state): Likewise. * utils.h (make_cleanup_clear_parser_state): New function prototype. * aarch64-linux-tdep.c (aarch64_stap_parse_special_token): Update calls to write_exp* in order to pass the parser state. * arm-linux-tdep.c (arm_stap_parse_special_token): Likewise. * i386-tdep.c (i386_stap_parse_special_token_triplet): Likewise. (i386_stap_parse_special_token_three_arg_disp): Likewise. * ppc-linux-tdep.c (ppc_stap_parse_special_token): Likewise. * stap-probe.c (stap_parse_register_operand): Likewise. (stap_parse_single_operand): Likewise. (stap_parse_argument_1): Likewise. (stap_parse_argument): Use parser state. * stap-probe.h: Include "parser-defs.h". (struct stap_parse_info) <pstate>: New field. * c-exp.y (parse_type): Rewrite to use parser state. (yyparse): Redefine to c_parse_internal. (pstate): New global variable. (parse_number): Add "struct parser_state" argument. (write_destructor_name): Likewise. (type_exp): Update calls to write_exp* and similars in order to use parser state. (exp1, exp, variable, qualified_name, space_identifier, typename, typebase): Likewise. (write_destructor_name, parse_number, lex_one_token, classify_name, classify_inner_name, c_parse): Add "struct parser_state" argument. Update function to use parser state. * c-lang.h: Forward declare "struct parser_state". (c_parse): Add "struct parser_state" argument. * ada-exp.y (parse_type): Rewrite macro to use parser state. (yyparse): Redefine macro to ada_parse_internal. (pstate): New variable. (write_int, write_object_renaming, write_var_or_type, write_name_assoc, write_exp_op_with_string, write_ambiguous_var, type_int, type_long, type_long_long, type_float, type_double, type_long_double, type_char, type_boolean, type_system_address): Add "struct parser_state" argument. (exp1, primary, simple_exp, relation, and_exp, and_then_exp, or_exp, or_else_exp, xor_exp, type_prefix, opt_type_prefix, var_or_type, aggregate, aggregate_component_list, positional_list, others, component_group, component_associations): Update calls to write_exp* and similar functions in order to use parser state. (ada_parse, write_var_from_sym, write_int, write_exp_op_with_string, write_object_renaming, find_primitive_type, write_selectors, write_ambiguous_var, write_var_or_type, write_name_assoc, type_int, type_long, type_long_long, type_float, type_double, type_long_double, type_char, type_boolean, type_system_address): Add "struct parser_state" argument. Adjust function to use parser state. * ada-lang.c (parse): Likewise. * ada-lang.h: Forward declare "struct parser_state". (ada_parse): Add "struct parser_state" argument. * ada-lex.l (processInt, processReal): Likewise. Adjust all calls to both functions. * f-exp.y (parse_type, parse_f_type): Rewrite macros to use parser state. (yyparse): Redefine macro to f_parse_internal. (pstate): New variable. (parse_number): Add "struct parser_state" argument. (type_exp, exp, subrange, typebase): Update calls to write_exp* and similars in order to use parser state. (parse_number): Adjust code to use parser state. (yylex): Likewise. (f_parse): New function. * f-lang.h: Forward declare "struct parser_state". (f_parse): Add "struct parser_state" argument. * jv-exp.y (parse_type, parse_java_type): Rewrite macros to use parser state. (yyparse): Redefine macro for java_parse_internal. (pstate): New variable. (push_expression_name, push_expression_name, insert_exp): Add "struct parser_state" argument. (type_exp, StringLiteral, Literal, PrimitiveType, IntegralType, FloatingPointType, exp1, PrimaryNoNewArray, FieldAccess, FuncStart, MethodInvocation, ArrayAccess, PostfixExpression, PostIncrementExpression, PostDecrementExpression, UnaryExpression, PreIncrementExpression, PreDecrementExpression, UnaryExpressionNotPlusMinus, CastExpression, MultiplicativeExpression, AdditiveExpression, ShiftExpression, RelationalExpression, EqualityExpression, AndExpression, ExclusiveOrExpression, InclusiveOrExpression, ConditionalAndExpression, ConditionalOrExpression, ConditionalExpression, Assignment, LeftHandSide): Update calls to write_exp* and similars in order to use parser state. (parse_number): Ajust code to use parser state. (yylex): Likewise. (java_parse): New function. (push_variable): Add "struct parser_state" argument. Adjust code to user parser state. (push_fieldnames, push_qualified_expression_name, push_expression_name, insert_exp): Likewise. * jv-lang.h: Forward declare "struct parser_state". (java_parse): Add "struct parser_state" argument. * m2-exp.y (parse_type, parse_m2_type): Rewrite macros to use parser state. (yyparse): Redefine macro to m2_parse_internal. (pstate): New variable. (type_exp, exp, fblock, variable, type): Update calls to write_exp* and similars to use parser state. (yylex): Likewise. (m2_parse): New function. * m2-lang.h: Forward declare "struct parser_state". (m2_parse): Add "struct parser_state" argument. * objc-lang.c (end_msglist): Add "struct parser_state" argument. * objc-lang.h: Forward declare "struct parser_state". (end_msglist): Add "struct parser_state" argument. * p-exp.y (parse_type): Rewrite macro to use parser state. (yyparse): Redefine macro to pascal_parse_internal. (pstate): New variable. (parse_number): Add "struct parser_state" argument. (type_exp, exp1, exp, qualified_name, variable): Update calls to write_exp* and similars in order to use parser state. (parse_number, yylex): Adjust code to use parser state. (pascal_parse): New function. * p-lang.h: Forward declare "struct parser_state". (pascal_parse): Add "struct parser_state" argument. * go-exp.y (parse_type): Rewrite macro to use parser state. (yyparse): Redefine macro to go_parse_internal. (pstate): New variable. (parse_number): Add "struct parser_state" argument. (type_exp, exp1, exp, variable, type): Update calls to write_exp* and similars in order to use parser state. (parse_number, lex_one_token, classify_name, yylex): Adjust code to use parser state. (go_parse): Likewise. * go-lang.h: Forward declare "struct parser_state". (go_parse): Add "struct parser_state" argument.
424 lines
13 KiB
C
424 lines
13 KiB
C
/* Ada language support definitions for GDB, the GNU debugger.
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Copyright (C) 1992-2014 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#if !defined (ADA_LANG_H)
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#define ADA_LANG_H 1
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struct frame_info;
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struct inferior;
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struct type_print_options;
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struct parser_state;
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#include "value.h"
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#include "gdbtypes.h"
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#include "breakpoint.h"
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#include "vec.h"
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/* Names of specific files known to be part of the runtime
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system and that might consider (confusing) debugging information.
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Each name (a basic regular expression string) is followed by a
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comma. FIXME: Should be part of a configuration file. */
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#if defined(__alpha__) && defined(__osf__)
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#define ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS \
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"^[agis]-.*\\.ad[bs]$", \
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"/usr/shlib/libpthread\\.so",
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#elif defined (__linux__)
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#define ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS \
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"^[agis]-.*\\.ad[bs]$", \
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"/lib.*/libpthread\\.so[.0-9]*$", "/lib.*/libpthread\\.a$", \
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"/lib.*/libc\\.so[.0-9]*$", "/lib.*/libc\\.a$",
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#endif
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#if !defined (ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS)
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#define ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS \
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"^unwind-seh.c$", \
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"^[agis]-.*\\.ad[bs]$",
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#endif
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/* Names of compiler-generated auxiliary functions probably of no
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interest to users. Each name (a basic regular expression string)
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is followed by a comma. */
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#define ADA_KNOWN_AUXILIARY_FUNCTION_NAME_PATTERNS \
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"___clean[.$a-zA-Z0-9_]*$", \
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"___finalizer[.$a-zA-Z0-9_]*$",
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/* The maximum number of frame levels searched for non-local,
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* non-global symbols. This limit exists as a precaution to prevent
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* infinite search loops when the stack is screwed up. */
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#define MAX_ENCLOSING_FRAME_LEVELS 7
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/* Maximum number of steps followed in looking for the ultimate
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referent of a renaming. This prevents certain infinite loops that
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can otherwise result. */
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#define MAX_RENAMING_CHAIN_LENGTH 10
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struct block;
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/* Corresponding encoded/decoded names and opcodes for Ada user-definable
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operators. */
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struct ada_opname_map
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{
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const char *encoded;
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const char *decoded;
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enum exp_opcode op;
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};
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/* Table of Ada operators in encoded and decoded forms. */
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/* Defined in ada-lang.c */
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extern const struct ada_opname_map ada_opname_table[];
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/* A tuple representing one instance of a symbol-lookup operation. */
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struct ada_symbol_info
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{
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/* The symbol that was found. */
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struct symbol *sym;
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/* The block where the symbol was found. */
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const struct block *block;
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};
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/* Denotes a type of renaming symbol (see ada_parse_renaming). */
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enum ada_renaming_category
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{
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/* Indicates a symbol that does not encode a renaming. */
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ADA_NOT_RENAMING,
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/* For symbols declared
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Foo : TYPE renamed OBJECT; */
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ADA_OBJECT_RENAMING,
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/* For symbols declared
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Foo : exception renames EXCEPTION; */
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ADA_EXCEPTION_RENAMING,
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/* For packages declared
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package Foo renames PACKAGE; */
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ADA_PACKAGE_RENAMING,
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/* For subprograms declared
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SUBPROGRAM_SPEC renames SUBPROGRAM;
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(Currently not used). */
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ADA_SUBPROGRAM_RENAMING
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};
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/* The different types of catchpoints that we introduced for catching
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Ada exceptions. */
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enum ada_exception_catchpoint_kind
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{
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ada_catch_exception,
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ada_catch_exception_unhandled,
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ada_catch_assert
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};
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/* Ada task structures. */
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struct ada_task_info
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{
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/* The PTID of the thread that this task runs on. This ptid is computed
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in a target-dependent way from the associated Task Control Block. */
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ptid_t ptid;
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/* The ID of the task. */
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CORE_ADDR task_id;
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/* The name of the task. */
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char name[257];
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/* The current state of the task. */
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int state;
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/* The priority associated to the task. */
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int priority;
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/* If non-zero, the task ID of the parent task. */
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CORE_ADDR parent;
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/* If the task is waiting on a task entry, this field contains
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the ID of the other task. Zero otherwise. */
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CORE_ADDR called_task;
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/* If the task is accepting a rendezvous with another task, this field
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contains the ID of the calling task. Zero otherwise. */
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CORE_ADDR caller_task;
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};
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/* Assuming V points to an array of S objects, make sure that it contains at
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least M objects, updating V and S as necessary. */
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#define GROW_VECT(v, s, m) \
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if ((s) < (m)) (v) = grow_vect (v, &(s), m, sizeof *(v));
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extern void *grow_vect (void *, size_t *, size_t, int);
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extern int ada_get_field_index (const struct type *type,
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const char *field_name,
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int maybe_missing);
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extern int ada_parse (struct parser_state *); /* Defined in ada-exp.y */
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extern void ada_error (char *); /* Defined in ada-exp.y */
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/* Defined in ada-typeprint.c */
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extern void ada_print_type (struct type *, const char *, struct ui_file *, int,
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int, const struct type_print_options *);
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extern void ada_print_typedef (struct type *type, struct symbol *new_symbol,
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struct ui_file *stream);
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extern void ada_val_print (struct type *, const gdb_byte *, int, CORE_ADDR,
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struct ui_file *, int,
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const struct value *,
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const struct value_print_options *);
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extern void ada_value_print (struct value *, struct ui_file *,
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const struct value_print_options *);
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/* Defined in ada-lang.c */
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extern void ada_emit_char (int, struct type *, struct ui_file *, int, int);
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extern void ada_printchar (int, struct type *, struct ui_file *);
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extern void ada_printstr (struct ui_file *, struct type *, const gdb_byte *,
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unsigned int, const char *, int,
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const struct value_print_options *);
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struct value *ada_convert_actual (struct value *actual,
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struct type *formal_type0);
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extern struct value *ada_value_subscript (struct value *, int,
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struct value **);
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extern void ada_fixup_array_indexes_type (struct type *index_desc_type);
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extern struct type *ada_array_element_type (struct type *, int);
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extern int ada_array_arity (struct type *);
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struct type *ada_type_of_array (struct value *, int);
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extern struct value *ada_coerce_to_simple_array_ptr (struct value *);
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struct value *ada_coerce_to_simple_array (struct value *);
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extern int ada_is_simple_array_type (struct type *);
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extern int ada_is_array_descriptor_type (struct type *);
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extern int ada_is_bogus_array_descriptor (struct type *);
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extern LONGEST ada_discrete_type_low_bound (struct type *);
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extern LONGEST ada_discrete_type_high_bound (struct type *);
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extern struct value *ada_get_decoded_value (struct value *value);
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extern struct type *ada_get_decoded_type (struct type *type);
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extern const char *ada_decode_symbol (const struct general_symbol_info *);
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extern const char *ada_decode (const char*);
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extern enum language ada_update_initial_language (enum language);
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extern int ada_lookup_symbol_list (const char *, const struct block *,
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domain_enum, struct ada_symbol_info**);
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extern char *ada_fold_name (const char *);
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extern struct symbol *ada_lookup_symbol (const char *, const struct block *,
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domain_enum, int *);
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extern void ada_lookup_encoded_symbol
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(const char *name, const struct block *block, domain_enum namespace,
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struct ada_symbol_info *symbol_info);
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extern struct bound_minimal_symbol ada_lookup_simple_minsym (const char *);
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extern void ada_fill_in_ada_prototype (struct symbol *);
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extern int user_select_syms (struct ada_symbol_info *, int, int);
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extern int get_selections (int *, int, int, int, char *);
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extern int ada_scan_number (const char *, int, LONGEST *, int *);
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extern struct type *ada_parent_type (struct type *);
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extern int ada_is_ignored_field (struct type *, int);
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extern int ada_is_constrained_packed_array_type (struct type *);
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extern struct value *ada_value_primitive_packed_val (struct value *,
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const gdb_byte *,
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long, int, int,
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struct type *);
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extern struct type *ada_coerce_to_simple_array_type (struct type *);
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extern int ada_is_character_type (struct type *);
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extern int ada_is_string_type (struct type *);
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extern int ada_is_tagged_type (struct type *, int);
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extern int ada_is_tag_type (struct type *);
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extern struct type *ada_tag_type (struct value *);
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extern struct value *ada_value_tag (struct value *);
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extern const char *ada_tag_name (struct value *);
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extern struct value *ada_tag_value_at_base_address (struct value *obj);
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extern int ada_is_parent_field (struct type *, int);
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extern int ada_is_wrapper_field (struct type *, int);
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extern int ada_is_variant_part (struct type *, int);
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extern struct type *ada_variant_discrim_type (struct type *, struct type *);
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extern int ada_is_others_clause (struct type *, int);
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extern int ada_in_variant (LONGEST, struct type *, int);
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extern char *ada_variant_discrim_name (struct type *);
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extern struct value *ada_value_struct_elt (struct value *, char *, int);
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extern int ada_is_aligner_type (struct type *);
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extern struct type *ada_aligned_type (struct type *);
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extern const gdb_byte *ada_aligned_value_addr (struct type *,
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const gdb_byte *);
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extern const char *ada_attribute_name (enum exp_opcode);
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extern int ada_is_fixed_point_type (struct type *);
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extern int ada_is_system_address_type (struct type *);
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extern DOUBLEST ada_delta (struct type *);
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extern DOUBLEST ada_fixed_to_float (struct type *, LONGEST);
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extern LONGEST ada_float_to_fixed (struct type *, DOUBLEST);
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extern struct type *ada_system_address_type (void);
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extern int ada_which_variant_applies (struct type *, struct type *,
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const gdb_byte *);
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extern struct type *ada_to_fixed_type (struct type *, const gdb_byte *,
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CORE_ADDR, struct value *,
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int check_tag);
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extern struct value *ada_to_fixed_value (struct value *val);
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extern struct type *ada_template_to_fixed_record_type_1 (struct type *type,
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const gdb_byte *valaddr,
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CORE_ADDR address,
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struct value *dval0,
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int keep_dynamic_fields);
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extern int ada_name_prefix_len (const char *);
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extern const char *ada_type_name (struct type *);
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extern struct type *ada_find_parallel_type (struct type *,
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const char *suffix);
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extern LONGEST get_int_var_value (char *, int *);
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extern struct symbol *ada_find_renaming_symbol (struct symbol *name_sym,
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const struct block *block);
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extern int ada_prefer_type (struct type *, struct type *);
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extern struct type *ada_get_base_type (struct type *);
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extern struct type *ada_check_typedef (struct type *);
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extern char *ada_encode (const char *);
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extern const char *ada_enum_name (const char *);
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extern int ada_is_modular_type (struct type *);
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extern ULONGEST ada_modulus (struct type *);
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extern struct value *ada_value_ind (struct value *);
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extern void ada_print_scalar (struct type *, LONGEST, struct ui_file *);
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extern int ada_is_range_type_name (const char *);
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extern enum ada_renaming_category ada_parse_renaming (struct symbol *,
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const char **,
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int *, const char **);
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extern void ada_find_printable_frame (struct frame_info *fi);
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extern char *ada_breakpoint_rewrite (char *, int *);
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extern char *ada_main_name (void);
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extern char *ada_name_for_lookup (const char *name);
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extern void create_ada_exception_catchpoint
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(struct gdbarch *gdbarch, enum ada_exception_catchpoint_kind ex_kind,
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char *excep_string, char *cond_string, int tempflag, int disabled,
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int from_tty);
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/* Some information about a given Ada exception. */
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typedef struct ada_exc_info
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{
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/* The name of the exception. */
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const char *name;
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/* The address of the symbol corresponding to that exception. */
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CORE_ADDR addr;
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} ada_exc_info;
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DEF_VEC_O(ada_exc_info);
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extern VEC(ada_exc_info) *ada_exceptions_list (const char *regexp);
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/* Tasking-related: ada-tasks.c */
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extern int valid_task_id (int);
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extern int ada_get_task_number (ptid_t);
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typedef void (ada_task_list_iterator_ftype) (struct ada_task_info *task);
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extern void iterate_over_live_ada_tasks
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(ada_task_list_iterator_ftype *iterator);
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extern int ada_build_task_list (void);
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extern void print_ada_task_info (struct ui_out *uiout,
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char *taskno_str,
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struct inferior *inf);
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#endif
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