mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
6f937416b9
This is sort of a continuation of Keith's parse_exp_1 constification patch. It started out by undoing these bits: @@ -754,9 +754,12 @@ validate_actionline (char **line, struct tmp_p = p; for (loc = t->base.loc; loc; loc = loc->next) { - p = tmp_p; - exp = parse_exp_1 (&p, loc->address, + const char *q; + + q = tmp_p; + exp = parse_exp_1 (&q, loc->address, block_for_pc (loc->address), 1); + p = (char *) q; and progressively making more things const upwards, fixing fallout, rinse repeat, until GDB built again (--enable-targets=all). That ended up constifying lookup_cmd/add_cmd and (lots of) friends, and the completers. I didn't try to constify the command hooks themselves, because I know upfront there are commands that write to the command string argument, and I think I managed to stop at a nice non-hacky split point already. I think the only non-really-super-obvious changes are tracepoint.c:validate_actionline, and tracepoint.c:trace_dump_actions. The rest is just mostly about 'char *' => 'const char *', 'char **'=> 'const char **', and the occasional (e.g., deprecated_cmd_warning) case of 'char **'=> 'const char *', where/when I noticed that nothing actually cares about the pointer to pointer output. Tested on x86_64 Fedora 17, native and gdbserver. gdb/ 2013-03-13 Pedro Alves <palves@redhat.com> * ada-lang.c (struct add_partial_datum) <text, text0, word>: Make fields const. (ada_make_symbol_completion_list): Make "text0" parameter const. * ax-gdb.c (agent_eval_command_one): Make "exp" parameter const. * breakpoint.c (condition_completer): Make "text" and "word" parameters const. Adjust. (check_tracepoint_command): Adjust to validate_actionline prototype change. (catch_syscall_completer): Make "text" and "word" parameters const. * cli/cli-cmds.c (show_user): Make "comname" local const. (valid_command_p): Make "command" parameter const. (alias_command): Make "alias_prefix" and "command_prefix" locals const. * cli/cli-decode.c (add_cmd): Make "name" parameter const. (add_alias_cmd): Make "name" and "oldname" parameters const. Adjust. No longer make copy of OLDNAME. (add_prefix_cmd, add_abbrev_prefix_cmd, add_set_or_show_cmd) (add_setshow_cmd_full, add_setshow_enum_cmd) (add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd) (add_setshow_filename_cmd, add_setshow_string_cmd) (add_setshow_string_noescape_cmd) (add_setshow_optional_filename_cmd, add_setshow_integer_cmd) (add_setshow_uinteger_cmd, add_setshow_zinteger_cmd) (add_setshow_zuinteger_unlimited_cmd, add_setshow_zuinteger_cmd) (delete_cmd, add_info, add_info_alias, add_com, add_com_alias): Make "name" parameter const. (help_cmd): Rename "command" parameter to "arg". New const local "command". (find_cmd): Make "command" parameter const. (lookup_cmd_1): Make "text" parameter pointer to const. Adjust to deprecated_cmd_warning prototype change. (undef_cmd_error): Make "cmdtype" parameter const. (lookup_cmd): Make "line" parameter const. (deprecated_cmd_warning): Change type of "text" parameter to pointer to const char, from pointer to pointer to char. Adjust. (lookup_cmd_composition): Make "text" parameter const. (complete_on_cmdlist, complete_on_enum): Make "text" and "word" parameters const. * cli/cli-decode.h (struct cmd_list_element) <name>: Make field const. * cli/cli-script.c (validate_comname): Make "tem" local const. (define_command): New const local "tem_c". Use it in calls to lookup_cmd. (document_command): Make "tem" and "comfull" locals const. (show_user_1): Make "prefix" and "name" parameters const. * cli-script.h (show_user_1): Make "prefix" and "name" parameters const. * command.h (add_cmd, add_alias_cmd, add_prefix_cmd) (add_abbrev_prefix_cmd, completer_ftype, lookup_cmd, lookup_cmd_1) (deprecated_cmd_warning, lookup_cmd_composition, add_com) (add_com_alias, add_info, add_info_alias, complete_on_cmdlist) (complete_on_enum, add_setshow_enum_cmd) (add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd) (add_setshow_filename_cmd, add_setshow_string_cmd) (add_setshow_string_noescape_cmd) (add_setshow_optional_filename_cmd, add_setshow_integer_cmd) (add_setshow_uinteger_cmd, add_setshow_zinteger_cmd) (add_setshow_zuinteger_cmd, add_setshow_zuinteger_unlimited_cmd): Change prototypes, constifying strings. * completer.c (noop_completer, filename_completer): Make "text" and "prefix" parameters const. (location_completer, expression_completer) (complete_line_internal): Make "text" and "prefix" parameters const and adjust. (command_completer, signal_completer): Make "text" and "prefix" parameters const. * completer.h (noop_completer, filename_completer) (expression_completer, location_completer, command_completer) (signal_completer): Change prototypes. * corefile.c (complete_set_gnutarget): Make "text" and "word" parameters const. * cp-abi.c (cp_abi_completer): Likewise. * expression.h (parse_expression_for_completion): Change prototype. * f-lang.c (f_make_symbol_completion_list): Make "text" and "word" parameters const. * infcmd.c (_initialize_infcmd): Make "cmd_name" local const. * infrun.c (handle_completer): Make "text" and "word" parameters const. * interps.c (interpreter_completer): Make "text" and "word" parameters const. * language.h (struct language_defn) <la_make_symbol_completion_list>: Make "text" and "word" parameters const. * parse.c (parse_exp_1): Move const hack to parse_exp_in_context. (parse_exp_in_context): Rename to ... (parse_exp_in_context_1): ... this. (parse_exp_in_context): Reimplement, with const hack from parse_exp_1. (parse_expression_for_completion): Make "string" parameter const. * printcmd.c (decode_format): Make "string_ptr" parameter pointer to pointer to const char. Adjust. (print_command_1): Make "exp" parameter const. (output_command): Rename to ... (output_command_const): ... this. Make "exp" parameter const. (output_command): Reimplement. (x_command): Adjust. (display_command): Rename "exp" parameter to "arg". New "exp" local, const version of "arg". * python/py-auto-load.c (gdbpy_initialize_auto_load): Make "cmd_name" local const. * python/py-cmd.c (cmdpy_destroyer): Cast const away in xfree call. (cmdpy_completer): Make "text" and "word" parameters const. (gdbpy_parse_command_name): Make "prefix_text2" local const. * python/py-param.c (add_setshow_generic): Make "tmp_name" local const. * remote.c (_initialize_remote): Make "cmd_name" local const. * symtab.c (language_search_unquoted_string): Make "text" and "p" parameters const. Adjust. (completion_list_add_fields): Make "sym_text", "text" and "word" parameters const. (struct add_name_data) <sym_text, text, word>: Make fields const. (default_make_symbol_completion_list_break_on): Make "text" and "word" parameters const. Adjust locals. (default_make_symbol_completion_list) (make_symbol_completion_list, make_symbol_completion_type) (make_symbol_completion_list_fn): Make "text" and "word" parameters const. (make_file_symbol_completion_list): Make "text", "word" and "srcfile" parameters const. Adjust locals. (add_filename_to_list): Make "text" and "word" parameters const. (struct add_partial_filename_data) <text, word>: Make fields const. (make_source_files_completion_list): Make "text" and "word" parameters const. * symtab.h (default_make_symbol_completion_list_break_on) (default_make_symbol_completion_list, make_symbol_completion_list) (make_symbol_completion_type enum type_code) (make_symbol_completion_list_fn make_file_symbol_completion_list) (make_source_files_completion_list): Change prototype. * top.c (execute_command): Adjust to pass pointer to pointer to const char to lookup_cmd, and to deprecated_cmd_warning prototype change. (set_verbose): Make "cmdname" local const. * tracepoint.c (decode_agent_options): Make "exp" parameter const, and adjust. (validate_actionline): Make "line" parameter a pointer to const char, and adjust. (encode_actions_1): Make "action_exp" local const, and adjust. (encode_actions): Adjust. (replace_comma): Delete. (trace_dump_actions): Make "action_exp" and "next_comma" locals const, and adjust. Don't frob the action string while splitting it at commas. Instead, make a copy of each split substring in turn. (trace_dump_command): Adjust to validate_actionline prototype change. * tracepoint.h (decode_agent_options, decode_agent_options) (encode_actions, validate_actionline): Change prototypes. * valprint.h (output_command): Delete declaration. (output_command_const): Declare. * value.c (function_destroyer): Cast const away in xfree call.
352 lines
10 KiB
C
352 lines
10 KiB
C
/* Fortran language support routines for GDB, the GNU debugger.
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Copyright (C) 1993-2013 Free Software Foundation, Inc.
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Contributed by Motorola. Adapted from the C parser by Farooq Butt
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(fmbutt@engage.sps.mot.com).
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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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#include "defs.h"
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#include "gdb_string.h"
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#include "symtab.h"
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#include "gdbtypes.h"
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#include "expression.h"
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#include "parser-defs.h"
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#include "language.h"
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#include "f-lang.h"
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#include "valprint.h"
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#include "value.h"
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#include "cp-support.h"
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#include "charset.h"
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#include "c-lang.h"
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/* Local functions */
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extern void _initialize_f_language (void);
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static void f_printchar (int c, struct type *type, struct ui_file * stream);
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static void f_emit_char (int c, struct type *type,
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struct ui_file * stream, int quoter);
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/* Return the encoding that should be used for the character type
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TYPE. */
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static const char *
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f_get_encoding (struct type *type)
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{
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const char *encoding;
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switch (TYPE_LENGTH (type))
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{
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case 1:
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encoding = target_charset (get_type_arch (type));
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break;
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case 4:
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if (gdbarch_byte_order (get_type_arch (type)) == BFD_ENDIAN_BIG)
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encoding = "UTF-32BE";
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else
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encoding = "UTF-32LE";
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break;
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default:
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error (_("unrecognized character type"));
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}
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return encoding;
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}
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/* Print the character C on STREAM as part of the contents of a literal
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string whose delimiter is QUOTER. Note that that format for printing
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characters and strings is language specific.
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FIXME: This is a copy of the same function from c-exp.y. It should
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be replaced with a true F77 version. */
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static void
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f_emit_char (int c, struct type *type, struct ui_file *stream, int quoter)
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{
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const char *encoding = f_get_encoding (type);
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generic_emit_char (c, type, stream, quoter, encoding);
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}
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/* Implementation of la_printchar. */
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static void
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f_printchar (int c, struct type *type, struct ui_file *stream)
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{
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fputs_filtered ("'", stream);
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LA_EMIT_CHAR (c, type, stream, '\'');
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fputs_filtered ("'", stream);
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}
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/* Print the character string STRING, printing at most LENGTH characters.
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Printing stops early if the number hits print_max; repeat counts
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are printed as appropriate. Print ellipses at the end if we
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had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
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FIXME: This is a copy of the same function from c-exp.y. It should
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be replaced with a true F77 version. */
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static void
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f_printstr (struct ui_file *stream, struct type *type, const gdb_byte *string,
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unsigned int length, const char *encoding, int force_ellipses,
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const struct value_print_options *options)
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{
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const char *type_encoding = f_get_encoding (type);
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if (TYPE_LENGTH (type) == 4)
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fputs_filtered ("4_", stream);
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if (!encoding || !*encoding)
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encoding = type_encoding;
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generic_printstr (stream, type, string, length, encoding,
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force_ellipses, '\'', 0, options);
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}
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/* Table of operators and their precedences for printing expressions. */
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static const struct op_print f_op_print_tab[] =
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{
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{"+", BINOP_ADD, PREC_ADD, 0},
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{"+", UNOP_PLUS, PREC_PREFIX, 0},
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{"-", BINOP_SUB, PREC_ADD, 0},
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{"-", UNOP_NEG, PREC_PREFIX, 0},
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{"*", BINOP_MUL, PREC_MUL, 0},
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{"/", BINOP_DIV, PREC_MUL, 0},
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{"DIV", BINOP_INTDIV, PREC_MUL, 0},
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{"MOD", BINOP_REM, PREC_MUL, 0},
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{"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
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{".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
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{".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
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{".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
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{".EQ.", BINOP_EQUAL, PREC_EQUAL, 0},
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{".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0},
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{".LE.", BINOP_LEQ, PREC_ORDER, 0},
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{".GE.", BINOP_GEQ, PREC_ORDER, 0},
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{".GT.", BINOP_GTR, PREC_ORDER, 0},
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{".LT.", BINOP_LESS, PREC_ORDER, 0},
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{"**", UNOP_IND, PREC_PREFIX, 0},
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{"@", BINOP_REPEAT, PREC_REPEAT, 0},
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{NULL, 0, 0, 0}
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};
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enum f_primitive_types {
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f_primitive_type_character,
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f_primitive_type_logical,
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f_primitive_type_logical_s1,
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f_primitive_type_logical_s2,
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f_primitive_type_logical_s8,
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f_primitive_type_integer,
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f_primitive_type_integer_s2,
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f_primitive_type_real,
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f_primitive_type_real_s8,
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f_primitive_type_real_s16,
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f_primitive_type_complex_s8,
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f_primitive_type_complex_s16,
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f_primitive_type_void,
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nr_f_primitive_types
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};
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static void
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f_language_arch_info (struct gdbarch *gdbarch,
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struct language_arch_info *lai)
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{
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const struct builtin_f_type *builtin = builtin_f_type (gdbarch);
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lai->string_char_type = builtin->builtin_character;
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lai->primitive_type_vector
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= GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1,
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struct type *);
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lai->primitive_type_vector [f_primitive_type_character]
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= builtin->builtin_character;
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lai->primitive_type_vector [f_primitive_type_logical]
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= builtin->builtin_logical;
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lai->primitive_type_vector [f_primitive_type_logical_s1]
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= builtin->builtin_logical_s1;
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lai->primitive_type_vector [f_primitive_type_logical_s2]
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= builtin->builtin_logical_s2;
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lai->primitive_type_vector [f_primitive_type_logical_s8]
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= builtin->builtin_logical_s8;
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lai->primitive_type_vector [f_primitive_type_real]
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= builtin->builtin_real;
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lai->primitive_type_vector [f_primitive_type_real_s8]
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= builtin->builtin_real_s8;
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lai->primitive_type_vector [f_primitive_type_real_s16]
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= builtin->builtin_real_s16;
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lai->primitive_type_vector [f_primitive_type_complex_s8]
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= builtin->builtin_complex_s8;
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lai->primitive_type_vector [f_primitive_type_complex_s16]
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= builtin->builtin_complex_s16;
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lai->primitive_type_vector [f_primitive_type_void]
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= builtin->builtin_void;
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lai->bool_type_symbol = "logical";
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lai->bool_type_default = builtin->builtin_logical_s2;
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}
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/* Remove the modules separator :: from the default break list. */
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static char *
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f_word_break_characters (void)
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{
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static char *retval;
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if (!retval)
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{
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char *s;
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retval = xstrdup (default_word_break_characters ());
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s = strchr (retval, ':');
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if (s)
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{
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char *last_char = &s[strlen (s) - 1];
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*s = *last_char;
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*last_char = 0;
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}
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}
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return retval;
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}
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/* Consider the modules separator :: as a valid symbol name character
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class. */
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static VEC (char_ptr) *
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f_make_symbol_completion_list (const char *text, const char *word,
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enum type_code code)
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{
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return default_make_symbol_completion_list_break_on (text, word, ":", code);
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}
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const struct language_defn f_language_defn =
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{
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"fortran",
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language_fortran,
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range_check_on,
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case_sensitive_off,
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array_column_major,
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macro_expansion_no,
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&exp_descriptor_standard,
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f_parse, /* parser */
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f_error, /* parser error function */
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null_post_parser,
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f_printchar, /* Print character constant */
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f_printstr, /* function to print string constant */
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f_emit_char, /* Function to print a single character */
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f_print_type, /* Print a type using appropriate syntax */
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default_print_typedef, /* Print a typedef using appropriate syntax */
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f_val_print, /* Print a value using appropriate syntax */
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c_value_print, /* FIXME */
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default_read_var_value, /* la_read_var_value */
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NULL, /* Language specific skip_trampoline */
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NULL, /* name_of_this */
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cp_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
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basic_lookup_transparent_type,/* lookup_transparent_type */
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NULL, /* Language specific symbol demangler */
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NULL, /* Language specific
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class_name_from_physname */
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f_op_print_tab, /* expression operators for printing */
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0, /* arrays are first-class (not c-style) */
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1, /* String lower bound */
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f_word_break_characters,
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f_make_symbol_completion_list,
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f_language_arch_info,
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default_print_array_index,
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default_pass_by_reference,
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default_get_string,
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NULL, /* la_get_symbol_name_cmp */
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iterate_over_symbols,
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LANG_MAGIC
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};
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static void *
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build_fortran_types (struct gdbarch *gdbarch)
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{
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struct builtin_f_type *builtin_f_type
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= GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type);
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builtin_f_type->builtin_void
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= arch_type (gdbarch, TYPE_CODE_VOID, 1, "VOID");
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builtin_f_type->builtin_character
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= arch_integer_type (gdbarch, TARGET_CHAR_BIT, 0, "character");
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builtin_f_type->builtin_logical_s1
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= arch_boolean_type (gdbarch, TARGET_CHAR_BIT, 1, "logical*1");
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builtin_f_type->builtin_integer_s2
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= arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), 0,
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"integer*2");
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builtin_f_type->builtin_logical_s2
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= arch_boolean_type (gdbarch, gdbarch_short_bit (gdbarch), 1,
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"logical*2");
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builtin_f_type->builtin_logical_s8
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= arch_boolean_type (gdbarch, gdbarch_long_long_bit (gdbarch), 1,
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"logical*8");
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builtin_f_type->builtin_integer
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= arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), 0,
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"integer");
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builtin_f_type->builtin_logical
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= arch_boolean_type (gdbarch, gdbarch_int_bit (gdbarch), 1,
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"logical*4");
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builtin_f_type->builtin_real
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= arch_float_type (gdbarch, gdbarch_float_bit (gdbarch),
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"real", NULL);
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builtin_f_type->builtin_real_s8
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= arch_float_type (gdbarch, gdbarch_double_bit (gdbarch),
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"real*8", NULL);
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builtin_f_type->builtin_real_s16
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= arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch),
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"real*16", NULL);
|
||
|
||
builtin_f_type->builtin_complex_s8
|
||
= arch_complex_type (gdbarch, "complex*8",
|
||
builtin_f_type->builtin_real);
|
||
builtin_f_type->builtin_complex_s16
|
||
= arch_complex_type (gdbarch, "complex*16",
|
||
builtin_f_type->builtin_real_s8);
|
||
builtin_f_type->builtin_complex_s32
|
||
= arch_complex_type (gdbarch, "complex*32",
|
||
builtin_f_type->builtin_real_s16);
|
||
|
||
return builtin_f_type;
|
||
}
|
||
|
||
static struct gdbarch_data *f_type_data;
|
||
|
||
const struct builtin_f_type *
|
||
builtin_f_type (struct gdbarch *gdbarch)
|
||
{
|
||
return gdbarch_data (gdbarch, f_type_data);
|
||
}
|
||
|
||
void
|
||
_initialize_f_language (void)
|
||
{
|
||
f_type_data = gdbarch_data_register_post_init (build_fortran_types);
|
||
|
||
add_language (&f_language_defn);
|
||
}
|