forked from Imagelibrary/binutils-gdb
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.
401 lines
14 KiB
C
401 lines
14 KiB
C
/* Header file for command creation.
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Copyright (C) 1986-2013 Free Software Foundation, Inc.
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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 (COMMAND_H)
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#define COMMAND_H 1
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#include "gdb_vecs.h"
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/* This file defines the public interface for any code wanting to
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create commands. */
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/* Command classes are top-level categories into which commands are
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broken down for "help" purposes.
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Notes on classes: class_alias is for alias commands which are not
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abbreviations of the original command. class-pseudo is for
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commands which are not really commands nor help topics ("stop"). */
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enum command_class
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{
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/* Special args to help_list */
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class_deprecated = -3, all_classes = -2, all_commands = -1,
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/* Classes of commands */
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no_class = -1, class_run = 0, class_vars, class_stack, class_files,
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class_support, class_info, class_breakpoint, class_trace,
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class_alias, class_bookmark, class_obscure, class_maintenance,
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class_pseudo, class_tui, class_user, class_xdb,
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no_set_class /* Used for "show" commands that have no corresponding
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"set" command. */
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};
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/* FIXME: cagney/2002-03-17: Once cmd_type() has been removed, ``enum
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cmd_types'' can be moved from "command.h" to "cli-decode.h". */
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/* Not a set/show command. Note that some commands which begin with
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"set" or "show" might be in this category, if their syntax does
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not fall into one of the following categories. */
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typedef enum cmd_types
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{
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not_set_cmd,
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set_cmd,
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show_cmd
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}
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cmd_types;
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/* Types of "set" or "show" command. */
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typedef enum var_types
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{
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/* "on" or "off". *VAR is an integer which is nonzero for on,
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zero for off. */
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var_boolean,
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/* "on" / "true" / "enable" or "off" / "false" / "disable" or
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"auto. *VAR is an ``enum auto_boolean''. NOTE: In general a
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custom show command will need to be implemented - one that for
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"auto" prints both the "auto" and the current auto-selected
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value. */
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var_auto_boolean,
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/* Unsigned Integer. *VAR is an unsigned int. The user can type
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0 to mean "unlimited", which is stored in *VAR as UINT_MAX. */
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var_uinteger,
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/* Like var_uinteger but signed. *VAR is an int. The user can
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type 0 to mean "unlimited", which is stored in *VAR as
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INT_MAX. The only remaining use of it is the Python API.
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Don't use it elsewhere. */
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var_integer,
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/* String which the user enters with escapes (e.g. the user types
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\n and it is a real newline in the stored string).
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*VAR is a malloc'd string, or NULL if the string is empty. */
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var_string,
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/* String which stores what the user types verbatim.
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*VAR is a malloc'd string, or NULL if the string is empty. */
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var_string_noescape,
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/* String which stores a filename. (*VAR) is a malloc'd string,
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or "" if the string was empty. */
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var_optional_filename,
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/* String which stores a filename. (*VAR) is a malloc'd
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string. */
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var_filename,
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/* ZeroableInteger. *VAR is an int. Like var_integer except
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that zero really means zero. */
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var_zinteger,
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/* ZeroableUnsignedInteger. *VAR is an unsigned int. Zero really
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means zero. */
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var_zuinteger,
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/* ZeroableUnsignedInteger with unlimited value. *VAR is an int,
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but its range is [0, INT_MAX]. -1 stands for unlimited and
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other negative numbers are not allowed. */
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var_zuinteger_unlimited,
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/* Enumerated type. Can only have one of the specified values.
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*VAR is a char pointer to the name of the element that we
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find. */
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var_enum
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}
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var_types;
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/* This structure records one command'd definition. */
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struct cmd_list_element;
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/* Forward-declarations of the entry-points of cli/cli-decode.c. */
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/* API to the manipulation of command lists. */
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extern int valid_user_defined_cmd_name_p (const char *name);
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extern struct cmd_list_element *add_cmd (const char *, enum command_class,
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void (*fun) (char *, int), char *,
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struct cmd_list_element **);
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extern struct cmd_list_element *add_alias_cmd (const char *, const char *,
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enum command_class, int,
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struct cmd_list_element **);
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extern struct cmd_list_element *add_prefix_cmd (const char *, enum command_class,
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void (*fun) (char *, int),
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char *,
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struct cmd_list_element **,
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char *, int,
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struct cmd_list_element **);
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extern struct cmd_list_element *add_abbrev_prefix_cmd (const char *,
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enum command_class,
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void (*fun) (char *,
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int),
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char *,
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struct cmd_list_element
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**, char *, int,
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struct cmd_list_element
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**);
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/* Set the commands corresponding callback. */
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typedef void cmd_cfunc_ftype (char *args, int from_tty);
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extern void set_cmd_cfunc (struct cmd_list_element *cmd,
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cmd_cfunc_ftype *cfunc);
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typedef void cmd_sfunc_ftype (char *args, int from_tty,
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struct cmd_list_element *c);
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extern void set_cmd_sfunc (struct cmd_list_element *cmd,
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cmd_sfunc_ftype *sfunc);
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typedef VEC (char_ptr) *completer_ftype (struct cmd_list_element *,
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const char *, const char *);
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extern void set_cmd_completer (struct cmd_list_element *, completer_ftype *);
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/* HACK: cagney/2002-02-23: Code, mostly in tracepoints.c, grubs
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around in cmd objects to test the value of the commands sfunc(). */
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extern int cmd_cfunc_eq (struct cmd_list_element *cmd,
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void (*cfunc) (char *args, int from_tty));
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/* Each command object has a local context attached to it. */
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extern void set_cmd_context (struct cmd_list_element *cmd,
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void *context);
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extern void *get_cmd_context (struct cmd_list_element *cmd);
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/* Execute CMD's pre/post hook. Throw an error if the command fails.
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If already executing this pre/post hook, or there is no pre/post
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hook, the call is silently ignored. */
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extern void execute_cmd_pre_hook (struct cmd_list_element *cmd);
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extern void execute_cmd_post_hook (struct cmd_list_element *cmd);
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/* Return the type of the command. */
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extern enum cmd_types cmd_type (struct cmd_list_element *cmd);
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/* Flag for an ambiguous cmd_list result. */
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#define CMD_LIST_AMBIGUOUS ((struct cmd_list_element *) -1)
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extern struct cmd_list_element *lookup_cmd (const char **,
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struct cmd_list_element *, char *,
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int, int);
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extern struct cmd_list_element *lookup_cmd_1 (const char **,
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struct cmd_list_element *,
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struct cmd_list_element **,
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int);
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extern struct cmd_list_element *deprecate_cmd (struct cmd_list_element *,
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char * );
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extern void deprecated_cmd_warning (const char *);
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extern int lookup_cmd_composition (const char *text,
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struct cmd_list_element **alias,
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struct cmd_list_element **prefix_cmd,
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struct cmd_list_element **cmd);
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extern struct cmd_list_element *add_com (const char *, enum command_class,
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void (*fun) (char *, int),
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char *);
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extern struct cmd_list_element *add_com_alias (const char *, const char *,
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enum command_class, int);
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extern struct cmd_list_element *add_info (const char *,
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void (*fun) (char *, int),
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char *);
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extern struct cmd_list_element *add_info_alias (const char *, char *, int);
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extern VEC (char_ptr) *complete_on_cmdlist (struct cmd_list_element *,
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const char *, const char *, int);
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extern VEC (char_ptr) *complete_on_enum (const char *const *enumlist,
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const char *, const char *);
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/* Functions that implement commands about CLI commands. */
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extern void help_list (struct cmd_list_element *, char *,
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enum command_class, struct ui_file *);
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/* Method for show a set/show variable's VALUE on FILE. If this
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method isn't supplied deprecated_show_value_hack() is called (which
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is not good). */
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typedef void (show_value_ftype) (struct ui_file *file,
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int from_tty,
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struct cmd_list_element *cmd,
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const char *value);
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/* NOTE: i18n: This function is not i18n friendly. Callers should
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instead print the value out directly. */
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extern show_value_ftype deprecated_show_value_hack;
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extern void add_setshow_enum_cmd (const char *name,
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enum command_class class,
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const char *const *enumlist,
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const char **var,
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const char *set_doc,
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const char *show_doc,
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const char *help_doc,
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cmd_sfunc_ftype *set_func,
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show_value_ftype *show_func,
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struct cmd_list_element **set_list,
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struct cmd_list_element **show_list);
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extern void add_setshow_auto_boolean_cmd (const char *name,
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enum command_class class,
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enum auto_boolean *var,
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const char *set_doc,
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const char *show_doc,
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const char *help_doc,
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cmd_sfunc_ftype *set_func,
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show_value_ftype *show_func,
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struct cmd_list_element **set_list,
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struct cmd_list_element **show_list);
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extern void add_setshow_boolean_cmd (const char *name,
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enum command_class class,
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int *var,
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const char *set_doc, const char *show_doc,
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const char *help_doc,
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cmd_sfunc_ftype *set_func,
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show_value_ftype *show_func,
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struct cmd_list_element **set_list,
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struct cmd_list_element **show_list);
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extern void add_setshow_filename_cmd (const char *name,
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enum command_class class,
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char **var,
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const char *set_doc,
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const char *show_doc,
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const char *help_doc,
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cmd_sfunc_ftype *set_func,
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show_value_ftype *show_func,
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struct cmd_list_element **set_list,
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struct cmd_list_element **show_list);
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extern void add_setshow_string_cmd (const char *name,
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enum command_class class,
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char **var,
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const char *set_doc,
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const char *show_doc,
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const char *help_doc,
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cmd_sfunc_ftype *set_func,
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show_value_ftype *show_func,
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struct cmd_list_element **set_list,
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struct cmd_list_element **show_list);
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extern struct cmd_list_element *add_setshow_string_noescape_cmd
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(const char *name,
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enum command_class class,
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char **var,
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const char *set_doc,
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const char *show_doc,
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const char *help_doc,
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cmd_sfunc_ftype *set_func,
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show_value_ftype *show_func,
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struct cmd_list_element **set_list,
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struct cmd_list_element **show_list);
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extern void add_setshow_optional_filename_cmd (const char *name,
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enum command_class class,
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char **var,
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const char *set_doc,
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const char *show_doc,
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const char *help_doc,
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cmd_sfunc_ftype *set_func,
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show_value_ftype *show_func,
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struct cmd_list_element **set_list,
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struct cmd_list_element **show_list);
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|
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extern void add_setshow_integer_cmd (const char *name,
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enum command_class class,
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int *var,
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const char *set_doc,
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const char *show_doc,
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|
const char *help_doc,
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cmd_sfunc_ftype *set_func,
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show_value_ftype *show_func,
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struct cmd_list_element **set_list,
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|
struct cmd_list_element **show_list);
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|
|
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extern void add_setshow_uinteger_cmd (const char *name,
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enum command_class class,
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|
unsigned int *var,
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const char *set_doc,
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|
const char *show_doc,
|
|
const char *help_doc,
|
|
cmd_sfunc_ftype *set_func,
|
|
show_value_ftype *show_func,
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struct cmd_list_element **set_list,
|
|
struct cmd_list_element **show_list);
|
|
|
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extern void add_setshow_zinteger_cmd (const char *name,
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|
enum command_class class,
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|
int *var,
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|
const char *set_doc,
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|
const char *show_doc,
|
|
const char *help_doc,
|
|
cmd_sfunc_ftype *set_func,
|
|
show_value_ftype *show_func,
|
|
struct cmd_list_element **set_list,
|
|
struct cmd_list_element **show_list);
|
|
|
|
extern void add_setshow_zuinteger_cmd (const char *name,
|
|
enum command_class class,
|
|
unsigned int *var,
|
|
const char *set_doc,
|
|
const char *show_doc,
|
|
const char *help_doc,
|
|
cmd_sfunc_ftype *set_func,
|
|
show_value_ftype *show_func,
|
|
struct cmd_list_element **set_list,
|
|
struct cmd_list_element **show_list);
|
|
|
|
extern void
|
|
add_setshow_zuinteger_unlimited_cmd (const char *name,
|
|
enum command_class class,
|
|
int *var,
|
|
const char *set_doc,
|
|
const char *show_doc,
|
|
const char *help_doc,
|
|
cmd_sfunc_ftype *set_func,
|
|
show_value_ftype *show_func,
|
|
struct cmd_list_element **set_list,
|
|
struct cmd_list_element **show_list);
|
|
|
|
/* Do a "show" command for each thing on a command list. */
|
|
|
|
extern void cmd_show_list (struct cmd_list_element *, int, char *);
|
|
|
|
/* Used everywhere whenever at least one parameter is required and
|
|
none is specified. */
|
|
|
|
extern void error_no_arg (char *) ATTRIBUTE_NORETURN;
|
|
|
|
extern void dont_repeat (void);
|
|
|
|
extern struct cleanup *prevent_dont_repeat (void);
|
|
|
|
/* Used to mark commands that don't do anything. If we just leave the
|
|
function field NULL, the command is interpreted as a help topic, or
|
|
as a class of commands. */
|
|
|
|
extern void not_just_help_class_command (char *, int);
|
|
|
|
/* Check function pointer. */
|
|
extern int cmd_func_p (struct cmd_list_element *cmd);
|
|
|
|
/* Call the command function. */
|
|
extern void cmd_func (struct cmd_list_element *cmd,
|
|
char *args, int from_tty);
|
|
|
|
#endif /* !defined (COMMAND_H) */
|