/* GDB CLI command scripting.
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/* GDB CLI command scripting.
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Copyright (c) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
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Copyright (c) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
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1996, 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2008,
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1996, 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2008,
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2009, 2010 Free Software Foundation, Inc.
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2009, 2010 Free Software Foundation, Inc.
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This file is part of GDB.
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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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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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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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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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(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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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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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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "defs.h"
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#include "value.h"
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#include "value.h"
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#include "language.h" /* For value_true */
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#include "language.h" /* For value_true */
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#include <ctype.h>
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#include <ctype.h>
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#include "ui-out.h"
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#include "ui-out.h"
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#include "gdb_string.h"
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#include "gdb_string.h"
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#include "exceptions.h"
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#include "exceptions.h"
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#include "top.h"
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#include "top.h"
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#include "breakpoint.h"
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#include "breakpoint.h"
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#include "cli/cli-cmds.h"
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#include "cli/cli-cmds.h"
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#include "cli/cli-decode.h"
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#include "cli/cli-decode.h"
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#include "cli/cli-script.h"
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#include "cli/cli-script.h"
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#include "gdb_assert.h"
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#include "gdb_assert.h"
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#include "python/python.h"
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#include "python/python.h"
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/* Prototypes for local functions */
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/* Prototypes for local functions */
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static enum command_control_type
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static enum command_control_type
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recurse_read_control_structure (char * (*read_next_line_func) (),
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recurse_read_control_structure (char * (*read_next_line_func) (),
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struct command_line *current_cmd);
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struct command_line *current_cmd);
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static char *insert_args (char *line);
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static char *insert_args (char *line);
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static struct cleanup * setup_user_args (char *p);
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static struct cleanup * setup_user_args (char *p);
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static char *read_next_line ();
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static char *read_next_line ();
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/* Level of control structure when reading. */
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/* Level of control structure when reading. */
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static int control_level;
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static int control_level;
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/* Level of control structure when executing. */
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/* Level of control structure when executing. */
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static int command_nest_depth = 1;
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static int command_nest_depth = 1;
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/* This is to prevent certain commands being printed twice. */
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/* This is to prevent certain commands being printed twice. */
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static int suppress_next_print_command_trace = 0;
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static int suppress_next_print_command_trace = 0;
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/* Structure for arguments to user defined functions. */
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/* Structure for arguments to user defined functions. */
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#define MAXUSERARGS 10
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#define MAXUSERARGS 10
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struct user_args
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struct user_args
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{
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{
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struct user_args *next;
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struct user_args *next;
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/* It is necessary to store a malloced copy of the command line to
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/* It is necessary to store a malloced copy of the command line to
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ensure that the arguments are not overwritten before they are used. */
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ensure that the arguments are not overwritten before they are used. */
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char *command;
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char *command;
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struct
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struct
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{
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{
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char *arg;
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char *arg;
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int len;
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int len;
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}
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}
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a[MAXUSERARGS];
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a[MAXUSERARGS];
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int count;
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int count;
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}
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}
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*user_args;
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*user_args;
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/* Allocate, initialize a new command line structure for one of the
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/* Allocate, initialize a new command line structure for one of the
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control commands (if/while). */
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control commands (if/while). */
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static struct command_line *
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static struct command_line *
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build_command_line (enum command_control_type type, char *args)
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build_command_line (enum command_control_type type, char *args)
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{
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{
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struct command_line *cmd;
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struct command_line *cmd;
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if (args == NULL && (type == if_control || type == while_control))
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if (args == NULL && (type == if_control || type == while_control))
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error (_("if/while commands require arguments."));
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error (_("if/while commands require arguments."));
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gdb_assert (args != NULL);
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gdb_assert (args != NULL);
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cmd = (struct command_line *) xmalloc (sizeof (struct command_line));
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cmd = (struct command_line *) xmalloc (sizeof (struct command_line));
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cmd->next = NULL;
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cmd->next = NULL;
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cmd->control_type = type;
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cmd->control_type = type;
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cmd->body_count = 1;
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cmd->body_count = 1;
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cmd->body_list
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cmd->body_list
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= (struct command_line **) xmalloc (sizeof (struct command_line *)
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= (struct command_line **) xmalloc (sizeof (struct command_line *)
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* cmd->body_count);
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* cmd->body_count);
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memset (cmd->body_list, 0, sizeof (struct command_line *) * cmd->body_count);
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memset (cmd->body_list, 0, sizeof (struct command_line *) * cmd->body_count);
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cmd->line = xstrdup (args);
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cmd->line = xstrdup (args);
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return cmd;
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return cmd;
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}
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}
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/* Build and return a new command structure for the control commands
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/* Build and return a new command structure for the control commands
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such as "if" and "while". */
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such as "if" and "while". */
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struct command_line *
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struct command_line *
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get_command_line (enum command_control_type type, char *arg)
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get_command_line (enum command_control_type type, char *arg)
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{
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{
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struct command_line *cmd;
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struct command_line *cmd;
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struct cleanup *old_chain = NULL;
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struct cleanup *old_chain = NULL;
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/* Allocate and build a new command line structure. */
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/* Allocate and build a new command line structure. */
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cmd = build_command_line (type, arg);
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cmd = build_command_line (type, arg);
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old_chain = make_cleanup_free_command_lines (&cmd);
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old_chain = make_cleanup_free_command_lines (&cmd);
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/* Read in the body of this command. */
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/* Read in the body of this command. */
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if (recurse_read_control_structure (read_next_line, cmd) == invalid_control)
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if (recurse_read_control_structure (read_next_line, cmd) == invalid_control)
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{
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{
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warning (_("Error reading in canned sequence of commands."));
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warning (_("Error reading in canned sequence of commands."));
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do_cleanups (old_chain);
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do_cleanups (old_chain);
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return NULL;
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return NULL;
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}
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}
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discard_cleanups (old_chain);
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discard_cleanups (old_chain);
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return cmd;
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return cmd;
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}
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}
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/* Recursively print a command (including full control structures). */
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/* Recursively print a command (including full control structures). */
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void
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void
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print_command_lines (struct ui_out *uiout, struct command_line *cmd,
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print_command_lines (struct ui_out *uiout, struct command_line *cmd,
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unsigned int depth)
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unsigned int depth)
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{
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{
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struct command_line *list;
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struct command_line *list;
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list = cmd;
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list = cmd;
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while (list)
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while (list)
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{
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{
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if (depth)
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if (depth)
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ui_out_spaces (uiout, 2 * depth);
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ui_out_spaces (uiout, 2 * depth);
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/* A simple command, print it and continue. */
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/* A simple command, print it and continue. */
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if (list->control_type == simple_control)
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if (list->control_type == simple_control)
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{
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{
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ui_out_field_string (uiout, NULL, list->line);
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ui_out_field_string (uiout, NULL, list->line);
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ui_out_text (uiout, "\n");
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ui_out_text (uiout, "\n");
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list = list->next;
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list = list->next;
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continue;
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continue;
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}
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}
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/* loop_continue to jump to the start of a while loop, print it
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/* loop_continue to jump to the start of a while loop, print it
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and continue. */
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and continue. */
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if (list->control_type == continue_control)
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if (list->control_type == continue_control)
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{
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{
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ui_out_field_string (uiout, NULL, "loop_continue");
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ui_out_field_string (uiout, NULL, "loop_continue");
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ui_out_text (uiout, "\n");
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ui_out_text (uiout, "\n");
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list = list->next;
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list = list->next;
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continue;
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continue;
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}
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}
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/* loop_break to break out of a while loop, print it and continue. */
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/* loop_break to break out of a while loop, print it and continue. */
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if (list->control_type == break_control)
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if (list->control_type == break_control)
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{
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{
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ui_out_field_string (uiout, NULL, "loop_break");
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ui_out_field_string (uiout, NULL, "loop_break");
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ui_out_text (uiout, "\n");
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ui_out_text (uiout, "\n");
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list = list->next;
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list = list->next;
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continue;
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continue;
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}
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}
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/* A while command. Recursively print its subcommands and continue. */
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/* A while command. Recursively print its subcommands and continue. */
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if (list->control_type == while_control)
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if (list->control_type == while_control)
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{
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{
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ui_out_field_fmt (uiout, NULL, "while %s", list->line);
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ui_out_field_fmt (uiout, NULL, "while %s", list->line);
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ui_out_text (uiout, "\n");
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ui_out_text (uiout, "\n");
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print_command_lines (uiout, *list->body_list, depth + 1);
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print_command_lines (uiout, *list->body_list, depth + 1);
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if (depth)
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if (depth)
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ui_out_spaces (uiout, 2 * depth);
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ui_out_spaces (uiout, 2 * depth);
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ui_out_field_string (uiout, NULL, "end");
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ui_out_field_string (uiout, NULL, "end");
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ui_out_text (uiout, "\n");
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ui_out_text (uiout, "\n");
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list = list->next;
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list = list->next;
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continue;
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continue;
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}
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}
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/* An if command. Recursively print both arms before continueing. */
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/* An if command. Recursively print both arms before continueing. */
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if (list->control_type == if_control)
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if (list->control_type == if_control)
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{
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{
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ui_out_field_fmt (uiout, NULL, "if %s", list->line);
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ui_out_field_fmt (uiout, NULL, "if %s", list->line);
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ui_out_text (uiout, "\n");
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ui_out_text (uiout, "\n");
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/* The true arm. */
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/* The true arm. */
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print_command_lines (uiout, list->body_list[0], depth + 1);
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print_command_lines (uiout, list->body_list[0], depth + 1);
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/* Show the false arm if it exists. */
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/* Show the false arm if it exists. */
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if (list->body_count == 2)
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if (list->body_count == 2)
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{
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{
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if (depth)
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if (depth)
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ui_out_spaces (uiout, 2 * depth);
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ui_out_spaces (uiout, 2 * depth);
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ui_out_field_string (uiout, NULL, "else");
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ui_out_field_string (uiout, NULL, "else");
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ui_out_text (uiout, "\n");
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ui_out_text (uiout, "\n");
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print_command_lines (uiout, list->body_list[1], depth + 1);
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print_command_lines (uiout, list->body_list[1], depth + 1);
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}
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}
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if (depth)
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if (depth)
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ui_out_spaces (uiout, 2 * depth);
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ui_out_spaces (uiout, 2 * depth);
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ui_out_field_string (uiout, NULL, "end");
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ui_out_field_string (uiout, NULL, "end");
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ui_out_text (uiout, "\n");
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ui_out_text (uiout, "\n");
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list = list->next;
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list = list->next;
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continue;
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continue;
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}
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}
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/* A commands command. Print the breakpoint commands and continue. */
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/* A commands command. Print the breakpoint commands and continue. */
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if (list->control_type == commands_control)
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if (list->control_type == commands_control)
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{
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{
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if (*(list->line))
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if (*(list->line))
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ui_out_field_fmt (uiout, NULL, "commands %s", list->line);
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ui_out_field_fmt (uiout, NULL, "commands %s", list->line);
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else
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else
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ui_out_field_string (uiout, NULL, "commands");
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ui_out_field_string (uiout, NULL, "commands");
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ui_out_text (uiout, "\n");
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ui_out_text (uiout, "\n");
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print_command_lines (uiout, *list->body_list, depth + 1);
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print_command_lines (uiout, *list->body_list, depth + 1);
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if (depth)
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if (depth)
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ui_out_spaces (uiout, 2 * depth);
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ui_out_spaces (uiout, 2 * depth);
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ui_out_field_string (uiout, NULL, "end");
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ui_out_field_string (uiout, NULL, "end");
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ui_out_text (uiout, "\n");
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ui_out_text (uiout, "\n");
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list = list->next;
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list = list->next;
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continue;
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continue;
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}
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}
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if (list->control_type == python_control)
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if (list->control_type == python_control)
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{
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{
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ui_out_field_string (uiout, NULL, "python");
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ui_out_field_string (uiout, NULL, "python");
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ui_out_text (uiout, "\n");
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ui_out_text (uiout, "\n");
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/* Don't indent python code at all. */
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/* Don't indent python code at all. */
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print_command_lines (uiout, *list->body_list, 0);
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print_command_lines (uiout, *list->body_list, 0);
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if (depth)
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if (depth)
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ui_out_spaces (uiout, 2 * depth);
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ui_out_spaces (uiout, 2 * depth);
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ui_out_field_string (uiout, NULL, "end");
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ui_out_field_string (uiout, NULL, "end");
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ui_out_text (uiout, "\n");
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ui_out_text (uiout, "\n");
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list = list->next;
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list = list->next;
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continue;
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continue;
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}
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}
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/* ignore illegal command type and try next */
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/* ignore illegal command type and try next */
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list = list->next;
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list = list->next;
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} /* while (list) */
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} /* while (list) */
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}
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}
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/* Handle pre-post hooks. */
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/* Handle pre-post hooks. */
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static void
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static void
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clear_hook_in_cleanup (void *data)
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clear_hook_in_cleanup (void *data)
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{
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{
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struct cmd_list_element *c = data;
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struct cmd_list_element *c = data;
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c->hook_in = 0; /* Allow hook to work again once it is complete */
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c->hook_in = 0; /* Allow hook to work again once it is complete */
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}
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}
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void
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void
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execute_cmd_pre_hook (struct cmd_list_element *c)
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execute_cmd_pre_hook (struct cmd_list_element *c)
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{
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{
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if ((c->hook_pre) && (!c->hook_in))
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if ((c->hook_pre) && (!c->hook_in))
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{
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{
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struct cleanup *cleanups = make_cleanup (clear_hook_in_cleanup, c);
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struct cleanup *cleanups = make_cleanup (clear_hook_in_cleanup, c);
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c->hook_in = 1; /* Prevent recursive hooking */
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c->hook_in = 1; /* Prevent recursive hooking */
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execute_user_command (c->hook_pre, (char *) 0);
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execute_user_command (c->hook_pre, (char *) 0);
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do_cleanups (cleanups);
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do_cleanups (cleanups);
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}
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}
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}
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}
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void
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void
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execute_cmd_post_hook (struct cmd_list_element *c)
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execute_cmd_post_hook (struct cmd_list_element *c)
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{
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{
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if ((c->hook_post) && (!c->hook_in))
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if ((c->hook_post) && (!c->hook_in))
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{
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{
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struct cleanup *cleanups = make_cleanup (clear_hook_in_cleanup, c);
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struct cleanup *cleanups = make_cleanup (clear_hook_in_cleanup, c);
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c->hook_in = 1; /* Prevent recursive hooking */
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c->hook_in = 1; /* Prevent recursive hooking */
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execute_user_command (c->hook_post, (char *) 0);
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execute_user_command (c->hook_post, (char *) 0);
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do_cleanups (cleanups);
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do_cleanups (cleanups);
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}
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}
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}
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}
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/* Execute the command in CMD. */
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/* Execute the command in CMD. */
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static void
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static void
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do_restore_user_call_depth (void * call_depth)
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do_restore_user_call_depth (void * call_depth)
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{
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{
|
int * depth = call_depth;
|
int * depth = call_depth;
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(*depth)--;
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(*depth)--;
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if ((*depth) == 0)
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if ((*depth) == 0)
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in_user_command = 0;
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in_user_command = 0;
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}
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}
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|
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|
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void
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void
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execute_user_command (struct cmd_list_element *c, char *args)
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execute_user_command (struct cmd_list_element *c, char *args)
|
{
|
{
|
struct command_line *cmdlines;
|
struct command_line *cmdlines;
|
struct cleanup *old_chain;
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struct cleanup *old_chain;
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enum command_control_type ret;
|
enum command_control_type ret;
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static int user_call_depth = 0;
|
static int user_call_depth = 0;
|
extern int max_user_call_depth;
|
extern int max_user_call_depth;
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|
|
old_chain = setup_user_args (args);
|
old_chain = setup_user_args (args);
|
|
|
cmdlines = c->user_commands;
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cmdlines = c->user_commands;
|
if (cmdlines == 0)
|
if (cmdlines == 0)
|
/* Null command */
|
/* Null command */
|
return;
|
return;
|
|
|
if (++user_call_depth > max_user_call_depth)
|
if (++user_call_depth > max_user_call_depth)
|
error (_("Max user call depth exceeded -- command aborted."));
|
error (_("Max user call depth exceeded -- command aborted."));
|
|
|
make_cleanup (do_restore_user_call_depth, &user_call_depth);
|
make_cleanup (do_restore_user_call_depth, &user_call_depth);
|
|
|
/* Set the instream to 0, indicating execution of a
|
/* Set the instream to 0, indicating execution of a
|
user-defined function. */
|
user-defined function. */
|
make_cleanup (do_restore_instream_cleanup, instream);
|
make_cleanup (do_restore_instream_cleanup, instream);
|
instream = (FILE *) 0;
|
instream = (FILE *) 0;
|
|
|
/* Also set the global in_user_command, so that NULL instream is
|
/* Also set the global in_user_command, so that NULL instream is
|
not confused with Insight. */
|
not confused with Insight. */
|
in_user_command = 1;
|
in_user_command = 1;
|
|
|
command_nest_depth++;
|
command_nest_depth++;
|
while (cmdlines)
|
while (cmdlines)
|
{
|
{
|
ret = execute_control_command (cmdlines);
|
ret = execute_control_command (cmdlines);
|
if (ret != simple_control && ret != break_control)
|
if (ret != simple_control && ret != break_control)
|
{
|
{
|
warning (_("Error executing canned sequence of commands."));
|
warning (_("Error executing canned sequence of commands."));
|
break;
|
break;
|
}
|
}
|
cmdlines = cmdlines->next;
|
cmdlines = cmdlines->next;
|
}
|
}
|
command_nest_depth--;
|
command_nest_depth--;
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
}
|
}
|
|
|
/* This function is called every time GDB prints a prompt.
|
/* This function is called every time GDB prints a prompt.
|
It ensures that errors and the like to not confuse the command tracing. */
|
It ensures that errors and the like to not confuse the command tracing. */
|
|
|
void
|
void
|
reset_command_nest_depth (void)
|
reset_command_nest_depth (void)
|
{
|
{
|
command_nest_depth = 1;
|
command_nest_depth = 1;
|
|
|
/* Just in case. */
|
/* Just in case. */
|
suppress_next_print_command_trace = 0;
|
suppress_next_print_command_trace = 0;
|
}
|
}
|
|
|
/* Print the command, prefixed with '+' to represent the call depth.
|
/* Print the command, prefixed with '+' to represent the call depth.
|
This is slightly complicated because this function may be called
|
This is slightly complicated because this function may be called
|
from execute_command and execute_control_command. Unfortunately
|
from execute_command and execute_control_command. Unfortunately
|
execute_command also prints the top level control commands.
|
execute_command also prints the top level control commands.
|
In these cases execute_command will call execute_control_command
|
In these cases execute_command will call execute_control_command
|
via while_command or if_command. Inner levels of 'if' and 'while'
|
via while_command or if_command. Inner levels of 'if' and 'while'
|
are dealt with directly. Therefore we can use these functions
|
are dealt with directly. Therefore we can use these functions
|
to determine whether the command has been printed already or not. */
|
to determine whether the command has been printed already or not. */
|
void
|
void
|
print_command_trace (const char *cmd)
|
print_command_trace (const char *cmd)
|
{
|
{
|
int i;
|
int i;
|
|
|
if (suppress_next_print_command_trace)
|
if (suppress_next_print_command_trace)
|
{
|
{
|
suppress_next_print_command_trace = 0;
|
suppress_next_print_command_trace = 0;
|
return;
|
return;
|
}
|
}
|
|
|
if (!source_verbose && !trace_commands)
|
if (!source_verbose && !trace_commands)
|
return;
|
return;
|
|
|
for (i=0; i < command_nest_depth; i++)
|
for (i=0; i < command_nest_depth; i++)
|
printf_filtered ("+");
|
printf_filtered ("+");
|
|
|
printf_filtered ("%s\n", cmd);
|
printf_filtered ("%s\n", cmd);
|
}
|
}
|
|
|
enum command_control_type
|
enum command_control_type
|
execute_control_command (struct command_line *cmd)
|
execute_control_command (struct command_line *cmd)
|
{
|
{
|
struct expression *expr;
|
struct expression *expr;
|
struct command_line *current;
|
struct command_line *current;
|
struct cleanup *old_chain = make_cleanup (null_cleanup, 0);
|
struct cleanup *old_chain = make_cleanup (null_cleanup, 0);
|
struct value *val;
|
struct value *val;
|
struct value *val_mark;
|
struct value *val_mark;
|
int loop;
|
int loop;
|
enum command_control_type ret;
|
enum command_control_type ret;
|
char *new_line;
|
char *new_line;
|
|
|
/* Start by assuming failure, if a problem is detected, the code
|
/* Start by assuming failure, if a problem is detected, the code
|
below will simply "break" out of the switch. */
|
below will simply "break" out of the switch. */
|
ret = invalid_control;
|
ret = invalid_control;
|
|
|
switch (cmd->control_type)
|
switch (cmd->control_type)
|
{
|
{
|
case simple_control:
|
case simple_control:
|
/* A simple command, execute it and return. */
|
/* A simple command, execute it and return. */
|
new_line = insert_args (cmd->line);
|
new_line = insert_args (cmd->line);
|
if (!new_line)
|
if (!new_line)
|
break;
|
break;
|
make_cleanup (free_current_contents, &new_line);
|
make_cleanup (free_current_contents, &new_line);
|
execute_command (new_line, 0);
|
execute_command (new_line, 0);
|
ret = cmd->control_type;
|
ret = cmd->control_type;
|
break;
|
break;
|
|
|
case continue_control:
|
case continue_control:
|
print_command_trace ("loop_continue");
|
print_command_trace ("loop_continue");
|
|
|
/* Return for "continue", and "break" so we can either
|
/* Return for "continue", and "break" so we can either
|
continue the loop at the top, or break out. */
|
continue the loop at the top, or break out. */
|
ret = cmd->control_type;
|
ret = cmd->control_type;
|
break;
|
break;
|
|
|
case break_control:
|
case break_control:
|
print_command_trace ("loop_break");
|
print_command_trace ("loop_break");
|
|
|
/* Return for "continue", and "break" so we can either
|
/* Return for "continue", and "break" so we can either
|
continue the loop at the top, or break out. */
|
continue the loop at the top, or break out. */
|
ret = cmd->control_type;
|
ret = cmd->control_type;
|
break;
|
break;
|
|
|
case while_control:
|
case while_control:
|
{
|
{
|
char *buffer = alloca (strlen (cmd->line) + 7);
|
char *buffer = alloca (strlen (cmd->line) + 7);
|
sprintf (buffer, "while %s", cmd->line);
|
sprintf (buffer, "while %s", cmd->line);
|
print_command_trace (buffer);
|
print_command_trace (buffer);
|
|
|
/* Parse the loop control expression for the while statement. */
|
/* Parse the loop control expression for the while statement. */
|
new_line = insert_args (cmd->line);
|
new_line = insert_args (cmd->line);
|
if (!new_line)
|
if (!new_line)
|
break;
|
break;
|
make_cleanup (free_current_contents, &new_line);
|
make_cleanup (free_current_contents, &new_line);
|
expr = parse_expression (new_line);
|
expr = parse_expression (new_line);
|
make_cleanup (free_current_contents, &expr);
|
make_cleanup (free_current_contents, &expr);
|
|
|
ret = simple_control;
|
ret = simple_control;
|
loop = 1;
|
loop = 1;
|
|
|
/* Keep iterating so long as the expression is true. */
|
/* Keep iterating so long as the expression is true. */
|
while (loop == 1)
|
while (loop == 1)
|
{
|
{
|
int cond_result;
|
int cond_result;
|
|
|
QUIT;
|
QUIT;
|
|
|
/* Evaluate the expression. */
|
/* Evaluate the expression. */
|
val_mark = value_mark ();
|
val_mark = value_mark ();
|
val = evaluate_expression (expr);
|
val = evaluate_expression (expr);
|
cond_result = value_true (val);
|
cond_result = value_true (val);
|
value_free_to_mark (val_mark);
|
value_free_to_mark (val_mark);
|
|
|
/* If the value is false, then break out of the loop. */
|
/* If the value is false, then break out of the loop. */
|
if (!cond_result)
|
if (!cond_result)
|
break;
|
break;
|
|
|
/* Execute the body of the while statement. */
|
/* Execute the body of the while statement. */
|
current = *cmd->body_list;
|
current = *cmd->body_list;
|
while (current)
|
while (current)
|
{
|
{
|
command_nest_depth++;
|
command_nest_depth++;
|
ret = execute_control_command (current);
|
ret = execute_control_command (current);
|
command_nest_depth--;
|
command_nest_depth--;
|
|
|
/* If we got an error, or a "break" command, then stop
|
/* If we got an error, or a "break" command, then stop
|
looping. */
|
looping. */
|
if (ret == invalid_control || ret == break_control)
|
if (ret == invalid_control || ret == break_control)
|
{
|
{
|
loop = 0;
|
loop = 0;
|
break;
|
break;
|
}
|
}
|
|
|
/* If we got a "continue" command, then restart the loop
|
/* If we got a "continue" command, then restart the loop
|
at this point. */
|
at this point. */
|
if (ret == continue_control)
|
if (ret == continue_control)
|
break;
|
break;
|
|
|
/* Get the next statement. */
|
/* Get the next statement. */
|
current = current->next;
|
current = current->next;
|
}
|
}
|
}
|
}
|
|
|
/* Reset RET so that we don't recurse the break all the way down. */
|
/* Reset RET so that we don't recurse the break all the way down. */
|
if (ret == break_control)
|
if (ret == break_control)
|
ret = simple_control;
|
ret = simple_control;
|
|
|
break;
|
break;
|
}
|
}
|
|
|
case if_control:
|
case if_control:
|
{
|
{
|
char *buffer = alloca (strlen (cmd->line) + 4);
|
char *buffer = alloca (strlen (cmd->line) + 4);
|
sprintf (buffer, "if %s", cmd->line);
|
sprintf (buffer, "if %s", cmd->line);
|
print_command_trace (buffer);
|
print_command_trace (buffer);
|
|
|
new_line = insert_args (cmd->line);
|
new_line = insert_args (cmd->line);
|
if (!new_line)
|
if (!new_line)
|
break;
|
break;
|
make_cleanup (free_current_contents, &new_line);
|
make_cleanup (free_current_contents, &new_line);
|
/* Parse the conditional for the if statement. */
|
/* Parse the conditional for the if statement. */
|
expr = parse_expression (new_line);
|
expr = parse_expression (new_line);
|
make_cleanup (free_current_contents, &expr);
|
make_cleanup (free_current_contents, &expr);
|
|
|
current = NULL;
|
current = NULL;
|
ret = simple_control;
|
ret = simple_control;
|
|
|
/* Evaluate the conditional. */
|
/* Evaluate the conditional. */
|
val_mark = value_mark ();
|
val_mark = value_mark ();
|
val = evaluate_expression (expr);
|
val = evaluate_expression (expr);
|
|
|
/* Choose which arm to take commands from based on the value of the
|
/* Choose which arm to take commands from based on the value of the
|
conditional expression. */
|
conditional expression. */
|
if (value_true (val))
|
if (value_true (val))
|
current = *cmd->body_list;
|
current = *cmd->body_list;
|
else if (cmd->body_count == 2)
|
else if (cmd->body_count == 2)
|
current = *(cmd->body_list + 1);
|
current = *(cmd->body_list + 1);
|
value_free_to_mark (val_mark);
|
value_free_to_mark (val_mark);
|
|
|
/* Execute commands in the given arm. */
|
/* Execute commands in the given arm. */
|
while (current)
|
while (current)
|
{
|
{
|
command_nest_depth++;
|
command_nest_depth++;
|
ret = execute_control_command (current);
|
ret = execute_control_command (current);
|
command_nest_depth--;
|
command_nest_depth--;
|
|
|
/* If we got an error, get out. */
|
/* If we got an error, get out. */
|
if (ret != simple_control)
|
if (ret != simple_control)
|
break;
|
break;
|
|
|
/* Get the next statement in the body. */
|
/* Get the next statement in the body. */
|
current = current->next;
|
current = current->next;
|
}
|
}
|
|
|
break;
|
break;
|
}
|
}
|
case commands_control:
|
case commands_control:
|
{
|
{
|
/* Breakpoint commands list, record the commands in the breakpoint's
|
/* Breakpoint commands list, record the commands in the breakpoint's
|
command list and return. */
|
command list and return. */
|
new_line = insert_args (cmd->line);
|
new_line = insert_args (cmd->line);
|
if (!new_line)
|
if (!new_line)
|
break;
|
break;
|
make_cleanup (free_current_contents, &new_line);
|
make_cleanup (free_current_contents, &new_line);
|
ret = commands_from_control_command (new_line, cmd);
|
ret = commands_from_control_command (new_line, cmd);
|
break;
|
break;
|
}
|
}
|
case python_control:
|
case python_control:
|
{
|
{
|
eval_python_from_control_command (cmd);
|
eval_python_from_control_command (cmd);
|
ret = simple_control;
|
ret = simple_control;
|
break;
|
break;
|
}
|
}
|
|
|
default:
|
default:
|
warning (_("Invalid control type in canned commands structure."));
|
warning (_("Invalid control type in canned commands structure."));
|
break;
|
break;
|
}
|
}
|
|
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
|
|
return ret;
|
return ret;
|
}
|
}
|
|
|
/* Like execute_control_command, but first set
|
/* Like execute_control_command, but first set
|
suppress_next_print_command_trace. */
|
suppress_next_print_command_trace. */
|
|
|
enum command_control_type
|
enum command_control_type
|
execute_control_command_untraced (struct command_line *cmd)
|
execute_control_command_untraced (struct command_line *cmd)
|
{
|
{
|
suppress_next_print_command_trace = 1;
|
suppress_next_print_command_trace = 1;
|
return execute_control_command (cmd);
|
return execute_control_command (cmd);
|
}
|
}
|
|
|
|
|
/* "while" command support. Executes a body of statements while the
|
/* "while" command support. Executes a body of statements while the
|
loop condition is nonzero. */
|
loop condition is nonzero. */
|
|
|
void
|
void
|
while_command (char *arg, int from_tty)
|
while_command (char *arg, int from_tty)
|
{
|
{
|
struct command_line *command = NULL;
|
struct command_line *command = NULL;
|
|
|
control_level = 1;
|
control_level = 1;
|
command = get_command_line (while_control, arg);
|
command = get_command_line (while_control, arg);
|
|
|
if (command == NULL)
|
if (command == NULL)
|
return;
|
return;
|
|
|
execute_control_command_untraced (command);
|
execute_control_command_untraced (command);
|
free_command_lines (&command);
|
free_command_lines (&command);
|
}
|
}
|
|
|
/* "if" command support. Execute either the true or false arm depending
|
/* "if" command support. Execute either the true or false arm depending
|
on the value of the if conditional. */
|
on the value of the if conditional. */
|
|
|
void
|
void
|
if_command (char *arg, int from_tty)
|
if_command (char *arg, int from_tty)
|
{
|
{
|
struct command_line *command = NULL;
|
struct command_line *command = NULL;
|
|
|
control_level = 1;
|
control_level = 1;
|
command = get_command_line (if_control, arg);
|
command = get_command_line (if_control, arg);
|
|
|
if (command == NULL)
|
if (command == NULL)
|
return;
|
return;
|
|
|
execute_control_command_untraced (command);
|
execute_control_command_untraced (command);
|
free_command_lines (&command);
|
free_command_lines (&command);
|
}
|
}
|
|
|
/* Cleanup */
|
/* Cleanup */
|
static void
|
static void
|
arg_cleanup (void *ignore)
|
arg_cleanup (void *ignore)
|
{
|
{
|
struct user_args *oargs = user_args;
|
struct user_args *oargs = user_args;
|
if (!user_args)
|
if (!user_args)
|
internal_error (__FILE__, __LINE__,
|
internal_error (__FILE__, __LINE__,
|
_("arg_cleanup called with no user args.\n"));
|
_("arg_cleanup called with no user args.\n"));
|
|
|
user_args = user_args->next;
|
user_args = user_args->next;
|
xfree (oargs->command);
|
xfree (oargs->command);
|
xfree (oargs);
|
xfree (oargs);
|
}
|
}
|
|
|
/* Bind the incomming arguments for a user defined command to
|
/* Bind the incomming arguments for a user defined command to
|
$arg0, $arg1 ... $argMAXUSERARGS. */
|
$arg0, $arg1 ... $argMAXUSERARGS. */
|
|
|
static struct cleanup *
|
static struct cleanup *
|
setup_user_args (char *p)
|
setup_user_args (char *p)
|
{
|
{
|
struct user_args *args;
|
struct user_args *args;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
unsigned int arg_count = 0;
|
unsigned int arg_count = 0;
|
|
|
args = (struct user_args *) xmalloc (sizeof (struct user_args));
|
args = (struct user_args *) xmalloc (sizeof (struct user_args));
|
memset (args, 0, sizeof (struct user_args));
|
memset (args, 0, sizeof (struct user_args));
|
|
|
args->next = user_args;
|
args->next = user_args;
|
user_args = args;
|
user_args = args;
|
|
|
old_chain = make_cleanup (arg_cleanup, 0/*ignored*/);
|
old_chain = make_cleanup (arg_cleanup, 0/*ignored*/);
|
|
|
if (p == NULL)
|
if (p == NULL)
|
return old_chain;
|
return old_chain;
|
|
|
user_args->command = p = xstrdup (p);
|
user_args->command = p = xstrdup (p);
|
|
|
while (*p)
|
while (*p)
|
{
|
{
|
char *start_arg;
|
char *start_arg;
|
int squote = 0;
|
int squote = 0;
|
int dquote = 0;
|
int dquote = 0;
|
int bsquote = 0;
|
int bsquote = 0;
|
|
|
if (arg_count >= MAXUSERARGS)
|
if (arg_count >= MAXUSERARGS)
|
{
|
{
|
error (_("user defined function may only have %d arguments."),
|
error (_("user defined function may only have %d arguments."),
|
MAXUSERARGS);
|
MAXUSERARGS);
|
return old_chain;
|
return old_chain;
|
}
|
}
|
|
|
/* Strip whitespace. */
|
/* Strip whitespace. */
|
while (*p == ' ' || *p == '\t')
|
while (*p == ' ' || *p == '\t')
|
p++;
|
p++;
|
|
|
/* P now points to an argument. */
|
/* P now points to an argument. */
|
start_arg = p;
|
start_arg = p;
|
user_args->a[arg_count].arg = p;
|
user_args->a[arg_count].arg = p;
|
|
|
/* Get to the end of this argument. */
|
/* Get to the end of this argument. */
|
while (*p)
|
while (*p)
|
{
|
{
|
if (((*p == ' ' || *p == '\t')) && !squote && !dquote && !bsquote)
|
if (((*p == ' ' || *p == '\t')) && !squote && !dquote && !bsquote)
|
break;
|
break;
|
else
|
else
|
{
|
{
|
if (bsquote)
|
if (bsquote)
|
bsquote = 0;
|
bsquote = 0;
|
else if (*p == '\\')
|
else if (*p == '\\')
|
bsquote = 1;
|
bsquote = 1;
|
else if (squote)
|
else if (squote)
|
{
|
{
|
if (*p == '\'')
|
if (*p == '\'')
|
squote = 0;
|
squote = 0;
|
}
|
}
|
else if (dquote)
|
else if (dquote)
|
{
|
{
|
if (*p == '"')
|
if (*p == '"')
|
dquote = 0;
|
dquote = 0;
|
}
|
}
|
else
|
else
|
{
|
{
|
if (*p == '\'')
|
if (*p == '\'')
|
squote = 1;
|
squote = 1;
|
else if (*p == '"')
|
else if (*p == '"')
|
dquote = 1;
|
dquote = 1;
|
}
|
}
|
p++;
|
p++;
|
}
|
}
|
}
|
}
|
|
|
user_args->a[arg_count].len = p - start_arg;
|
user_args->a[arg_count].len = p - start_arg;
|
arg_count++;
|
arg_count++;
|
user_args->count++;
|
user_args->count++;
|
}
|
}
|
return old_chain;
|
return old_chain;
|
}
|
}
|
|
|
/* Given character string P, return a point to the first argument ($arg),
|
/* Given character string P, return a point to the first argument ($arg),
|
or NULL if P contains no arguments. */
|
or NULL if P contains no arguments. */
|
|
|
static char *
|
static char *
|
locate_arg (char *p)
|
locate_arg (char *p)
|
{
|
{
|
while ((p = strchr (p, '$')))
|
while ((p = strchr (p, '$')))
|
{
|
{
|
if (strncmp (p, "$arg", 4) == 0
|
if (strncmp (p, "$arg", 4) == 0
|
&& (isdigit (p[4]) || p[4] == 'c'))
|
&& (isdigit (p[4]) || p[4] == 'c'))
|
return p;
|
return p;
|
p++;
|
p++;
|
}
|
}
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Insert the user defined arguments stored in user_arg into the $arg
|
/* Insert the user defined arguments stored in user_arg into the $arg
|
arguments found in line, with the updated copy being placed into nline. */
|
arguments found in line, with the updated copy being placed into nline. */
|
|
|
static char *
|
static char *
|
insert_args (char *line)
|
insert_args (char *line)
|
{
|
{
|
char *p, *save_line, *new_line;
|
char *p, *save_line, *new_line;
|
unsigned len, i;
|
unsigned len, i;
|
|
|
/* If we are not in a user-defined function, treat $argc, $arg0, et
|
/* If we are not in a user-defined function, treat $argc, $arg0, et
|
cetera as normal convenience variables. */
|
cetera as normal convenience variables. */
|
if (user_args == NULL)
|
if (user_args == NULL)
|
return xstrdup (line);
|
return xstrdup (line);
|
|
|
/* First we need to know how much memory to allocate for the new line. */
|
/* First we need to know how much memory to allocate for the new line. */
|
save_line = line;
|
save_line = line;
|
len = 0;
|
len = 0;
|
while ((p = locate_arg (line)))
|
while ((p = locate_arg (line)))
|
{
|
{
|
len += p - line;
|
len += p - line;
|
i = p[4] - '0';
|
i = p[4] - '0';
|
|
|
if (p[4] == 'c')
|
if (p[4] == 'c')
|
{
|
{
|
/* $argc. Number will be <=10. */
|
/* $argc. Number will be <=10. */
|
len += user_args->count == 10 ? 2 : 1;
|
len += user_args->count == 10 ? 2 : 1;
|
}
|
}
|
else if (i >= user_args->count)
|
else if (i >= user_args->count)
|
{
|
{
|
error (_("Missing argument %d in user function."), i);
|
error (_("Missing argument %d in user function."), i);
|
return NULL;
|
return NULL;
|
}
|
}
|
else
|
else
|
{
|
{
|
len += user_args->a[i].len;
|
len += user_args->a[i].len;
|
}
|
}
|
line = p + 5;
|
line = p + 5;
|
}
|
}
|
|
|
/* Don't forget the tail. */
|
/* Don't forget the tail. */
|
len += strlen (line);
|
len += strlen (line);
|
|
|
/* Allocate space for the new line and fill it in. */
|
/* Allocate space for the new line and fill it in. */
|
new_line = (char *) xmalloc (len + 1);
|
new_line = (char *) xmalloc (len + 1);
|
if (new_line == NULL)
|
if (new_line == NULL)
|
return NULL;
|
return NULL;
|
|
|
/* Restore pointer to beginning of old line. */
|
/* Restore pointer to beginning of old line. */
|
line = save_line;
|
line = save_line;
|
|
|
/* Save pointer to beginning of new line. */
|
/* Save pointer to beginning of new line. */
|
save_line = new_line;
|
save_line = new_line;
|
|
|
while ((p = locate_arg (line)))
|
while ((p = locate_arg (line)))
|
{
|
{
|
int i, len;
|
int i, len;
|
|
|
memcpy (new_line, line, p - line);
|
memcpy (new_line, line, p - line);
|
new_line += p - line;
|
new_line += p - line;
|
|
|
if (p[4] == 'c')
|
if (p[4] == 'c')
|
{
|
{
|
gdb_assert (user_args->count >= 0 && user_args->count <= 10);
|
gdb_assert (user_args->count >= 0 && user_args->count <= 10);
|
if (user_args->count == 10)
|
if (user_args->count == 10)
|
{
|
{
|
*(new_line++) = '1';
|
*(new_line++) = '1';
|
*(new_line++) = '0';
|
*(new_line++) = '0';
|
}
|
}
|
else
|
else
|
*(new_line++) = user_args->count + '0';
|
*(new_line++) = user_args->count + '0';
|
}
|
}
|
else
|
else
|
{
|
{
|
i = p[4] - '0';
|
i = p[4] - '0';
|
len = user_args->a[i].len;
|
len = user_args->a[i].len;
|
if (len)
|
if (len)
|
{
|
{
|
memcpy (new_line, user_args->a[i].arg, len);
|
memcpy (new_line, user_args->a[i].arg, len);
|
new_line += len;
|
new_line += len;
|
}
|
}
|
}
|
}
|
line = p + 5;
|
line = p + 5;
|
}
|
}
|
/* Don't forget the tail. */
|
/* Don't forget the tail. */
|
strcpy (new_line, line);
|
strcpy (new_line, line);
|
|
|
/* Return a pointer to the beginning of the new line. */
|
/* Return a pointer to the beginning of the new line. */
|
return save_line;
|
return save_line;
|
}
|
}
|
|
|
|
|
/* Expand the body_list of COMMAND so that it can hold NEW_LENGTH
|
/* Expand the body_list of COMMAND so that it can hold NEW_LENGTH
|
code bodies. This is typically used when we encounter an "else"
|
code bodies. This is typically used when we encounter an "else"
|
clause for an "if" command. */
|
clause for an "if" command. */
|
|
|
static void
|
static void
|
realloc_body_list (struct command_line *command, int new_length)
|
realloc_body_list (struct command_line *command, int new_length)
|
{
|
{
|
int n;
|
int n;
|
struct command_line **body_list;
|
struct command_line **body_list;
|
|
|
n = command->body_count;
|
n = command->body_count;
|
|
|
/* Nothing to do? */
|
/* Nothing to do? */
|
if (new_length <= n)
|
if (new_length <= n)
|
return;
|
return;
|
|
|
body_list = (struct command_line **)
|
body_list = (struct command_line **)
|
xmalloc (sizeof (struct command_line *) * new_length);
|
xmalloc (sizeof (struct command_line *) * new_length);
|
|
|
memcpy (body_list, command->body_list, sizeof (struct command_line *) * n);
|
memcpy (body_list, command->body_list, sizeof (struct command_line *) * n);
|
memset (body_list + n, 0, sizeof (struct command_line *) * (new_length - n));
|
memset (body_list + n, 0, sizeof (struct command_line *) * (new_length - n));
|
|
|
xfree (command->body_list);
|
xfree (command->body_list);
|
command->body_list = body_list;
|
command->body_list = body_list;
|
command->body_count = new_length;
|
command->body_count = new_length;
|
}
|
}
|
|
|
/* Read next line from stdout. Passed to read_command_line_1 and
|
/* Read next line from stdout. Passed to read_command_line_1 and
|
recurse_read_control_structure whenever we need to read commands
|
recurse_read_control_structure whenever we need to read commands
|
from stdout. */
|
from stdout. */
|
|
|
static char *
|
static char *
|
read_next_line ()
|
read_next_line ()
|
{
|
{
|
char *prompt_ptr, control_prompt[256];
|
char *prompt_ptr, control_prompt[256];
|
int i = 0;
|
int i = 0;
|
|
|
if (control_level >= 254)
|
if (control_level >= 254)
|
error (_("Control nesting too deep!"));
|
error (_("Control nesting too deep!"));
|
|
|
/* Set a prompt based on the nesting of the control commands. */
|
/* Set a prompt based on the nesting of the control commands. */
|
if (instream == stdin || (instream == 0 && deprecated_readline_hook != NULL))
|
if (instream == stdin || (instream == 0 && deprecated_readline_hook != NULL))
|
{
|
{
|
for (i = 0; i < control_level; i++)
|
for (i = 0; i < control_level; i++)
|
control_prompt[i] = ' ';
|
control_prompt[i] = ' ';
|
control_prompt[i] = '>';
|
control_prompt[i] = '>';
|
control_prompt[i + 1] = '\0';
|
control_prompt[i + 1] = '\0';
|
prompt_ptr = (char *) &control_prompt[0];
|
prompt_ptr = (char *) &control_prompt[0];
|
}
|
}
|
else
|
else
|
prompt_ptr = NULL;
|
prompt_ptr = NULL;
|
|
|
return command_line_input (prompt_ptr, instream == stdin, "commands");
|
return command_line_input (prompt_ptr, instream == stdin, "commands");
|
}
|
}
|
|
|
/* Process one input line. If the command is an "end",
|
/* Process one input line. If the command is an "end",
|
return such an indication to the caller. If PARSE_COMMANDS is true,
|
return such an indication to the caller. If PARSE_COMMANDS is true,
|
strip leading whitespace (trailing whitespace is always stripped)
|
strip leading whitespace (trailing whitespace is always stripped)
|
in the line, attempt to recognize GDB control commands, and also
|
in the line, attempt to recognize GDB control commands, and also
|
return an indication if the command is an "else" or a nop.
|
return an indication if the command is an "else" or a nop.
|
Otherwise, only "end" is recognized. */
|
Otherwise, only "end" is recognized. */
|
|
|
static enum misc_command_type
|
static enum misc_command_type
|
process_next_line (char *p, struct command_line **command, int parse_commands)
|
process_next_line (char *p, struct command_line **command, int parse_commands)
|
{
|
{
|
char *p_end;
|
char *p_end;
|
char *p_start;
|
char *p_start;
|
int not_handled = 0;
|
int not_handled = 0;
|
|
|
/* Not sure what to do here. */
|
/* Not sure what to do here. */
|
if (p == NULL)
|
if (p == NULL)
|
return end_command;
|
return end_command;
|
|
|
/* Strip trailing whitespace. */
|
/* Strip trailing whitespace. */
|
p_end = p + strlen (p);
|
p_end = p + strlen (p);
|
while (p_end > p && (p_end[-1] == ' ' || p_end[-1] == '\t'))
|
while (p_end > p && (p_end[-1] == ' ' || p_end[-1] == '\t'))
|
p_end--;
|
p_end--;
|
|
|
p_start = p;
|
p_start = p;
|
/* Strip leading whitespace. */
|
/* Strip leading whitespace. */
|
while (p_start < p_end && (*p_start == ' ' || *p_start == '\t'))
|
while (p_start < p_end && (*p_start == ' ' || *p_start == '\t'))
|
p_start++;
|
p_start++;
|
|
|
/* 'end' is always recognized, regardless of parse_commands value.
|
/* 'end' is always recognized, regardless of parse_commands value.
|
We also permit whitespace before end and after. */
|
We also permit whitespace before end and after. */
|
if (p_end - p_start == 3 && !strncmp (p_start, "end", 3))
|
if (p_end - p_start == 3 && !strncmp (p_start, "end", 3))
|
return end_command;
|
return end_command;
|
|
|
if (parse_commands)
|
if (parse_commands)
|
{
|
{
|
/* If commands are parsed, we skip initial spaces. Otherwise,
|
/* If commands are parsed, we skip initial spaces. Otherwise,
|
which is the case for Python commands and documentation
|
which is the case for Python commands and documentation
|
(see the 'document' command), spaces are preserved. */
|
(see the 'document' command), spaces are preserved. */
|
p = p_start;
|
p = p_start;
|
|
|
/* Blanks and comments don't really do anything, but we need to
|
/* Blanks and comments don't really do anything, but we need to
|
distinguish them from else, end and other commands which can be
|
distinguish them from else, end and other commands which can be
|
executed. */
|
executed. */
|
if (p_end == p || p[0] == '#')
|
if (p_end == p || p[0] == '#')
|
return nop_command;
|
return nop_command;
|
|
|
/* Is the else clause of an if control structure? */
|
/* Is the else clause of an if control structure? */
|
if (p_end - p == 4 && !strncmp (p, "else", 4))
|
if (p_end - p == 4 && !strncmp (p, "else", 4))
|
return else_command;
|
return else_command;
|
|
|
/* Check for while, if, break, continue, etc and build a new command
|
/* Check for while, if, break, continue, etc and build a new command
|
line structure for them. */
|
line structure for them. */
|
if (p_end - p > 5 && !strncmp (p, "while", 5))
|
if (p_end - p > 5 && !strncmp (p, "while", 5))
|
{
|
{
|
char *first_arg;
|
char *first_arg;
|
first_arg = p + 5;
|
first_arg = p + 5;
|
while (first_arg < p_end && isspace (*first_arg))
|
while (first_arg < p_end && isspace (*first_arg))
|
first_arg++;
|
first_arg++;
|
*command = build_command_line (while_control, first_arg);
|
*command = build_command_line (while_control, first_arg);
|
}
|
}
|
else if (p_end - p > 2 && !strncmp (p, "if", 2))
|
else if (p_end - p > 2 && !strncmp (p, "if", 2))
|
{
|
{
|
char *first_arg;
|
char *first_arg;
|
first_arg = p + 2;
|
first_arg = p + 2;
|
while (first_arg < p_end && isspace (*first_arg))
|
while (first_arg < p_end && isspace (*first_arg))
|
first_arg++;
|
first_arg++;
|
*command = build_command_line (if_control, first_arg);
|
*command = build_command_line (if_control, first_arg);
|
}
|
}
|
else if (p_end - p >= 8 && !strncmp (p, "commands", 8))
|
else if (p_end - p >= 8 && !strncmp (p, "commands", 8))
|
{
|
{
|
char *first_arg;
|
char *first_arg;
|
first_arg = p + 8;
|
first_arg = p + 8;
|
while (first_arg < p_end && isspace (*first_arg))
|
while (first_arg < p_end && isspace (*first_arg))
|
first_arg++;
|
first_arg++;
|
*command = build_command_line (commands_control, first_arg);
|
*command = build_command_line (commands_control, first_arg);
|
}
|
}
|
else if (p_end - p == 6 && !strncmp (p, "python", 6))
|
else if (p_end - p == 6 && !strncmp (p, "python", 6))
|
{
|
{
|
/* Note that we ignore the inline "python command" form
|
/* Note that we ignore the inline "python command" form
|
here. */
|
here. */
|
*command = build_command_line (python_control, "");
|
*command = build_command_line (python_control, "");
|
}
|
}
|
else if (p_end - p == 10 && !strncmp (p, "loop_break", 10))
|
else if (p_end - p == 10 && !strncmp (p, "loop_break", 10))
|
{
|
{
|
*command = (struct command_line *)
|
*command = (struct command_line *)
|
xmalloc (sizeof (struct command_line));
|
xmalloc (sizeof (struct command_line));
|
(*command)->next = NULL;
|
(*command)->next = NULL;
|
(*command)->line = NULL;
|
(*command)->line = NULL;
|
(*command)->control_type = break_control;
|
(*command)->control_type = break_control;
|
(*command)->body_count = 0;
|
(*command)->body_count = 0;
|
(*command)->body_list = NULL;
|
(*command)->body_list = NULL;
|
}
|
}
|
else if (p_end - p == 13 && !strncmp (p, "loop_continue", 13))
|
else if (p_end - p == 13 && !strncmp (p, "loop_continue", 13))
|
{
|
{
|
*command = (struct command_line *)
|
*command = (struct command_line *)
|
xmalloc (sizeof (struct command_line));
|
xmalloc (sizeof (struct command_line));
|
(*command)->next = NULL;
|
(*command)->next = NULL;
|
(*command)->line = NULL;
|
(*command)->line = NULL;
|
(*command)->control_type = continue_control;
|
(*command)->control_type = continue_control;
|
(*command)->body_count = 0;
|
(*command)->body_count = 0;
|
(*command)->body_list = NULL;
|
(*command)->body_list = NULL;
|
}
|
}
|
else
|
else
|
not_handled = 1;
|
not_handled = 1;
|
}
|
}
|
|
|
if (!parse_commands || not_handled)
|
if (!parse_commands || not_handled)
|
{
|
{
|
/* A normal command. */
|
/* A normal command. */
|
*command = (struct command_line *)
|
*command = (struct command_line *)
|
xmalloc (sizeof (struct command_line));
|
xmalloc (sizeof (struct command_line));
|
(*command)->next = NULL;
|
(*command)->next = NULL;
|
(*command)->line = savestring (p, p_end - p);
|
(*command)->line = savestring (p, p_end - p);
|
(*command)->control_type = simple_control;
|
(*command)->control_type = simple_control;
|
(*command)->body_count = 0;
|
(*command)->body_count = 0;
|
(*command)->body_list = NULL;
|
(*command)->body_list = NULL;
|
}
|
}
|
|
|
/* Nothing special. */
|
/* Nothing special. */
|
return ok_command;
|
return ok_command;
|
}
|
}
|
|
|
/* Recursively read in the control structures and create a command_line
|
/* Recursively read in the control structures and create a command_line
|
structure from them. Use read_next_line_func to obtain lines of
|
structure from them. Use read_next_line_func to obtain lines of
|
the command.
|
the command.
|
|
|
*/
|
*/
|
|
|
static enum command_control_type
|
static enum command_control_type
|
recurse_read_control_structure (char * (*read_next_line_func) (),
|
recurse_read_control_structure (char * (*read_next_line_func) (),
|
struct command_line *current_cmd)
|
struct command_line *current_cmd)
|
{
|
{
|
int current_body, i;
|
int current_body, i;
|
enum misc_command_type val;
|
enum misc_command_type val;
|
enum command_control_type ret;
|
enum command_control_type ret;
|
struct command_line **body_ptr, *child_tail, *next;
|
struct command_line **body_ptr, *child_tail, *next;
|
char *p;
|
char *p;
|
|
|
child_tail = NULL;
|
child_tail = NULL;
|
current_body = 1;
|
current_body = 1;
|
|
|
/* Sanity checks. */
|
/* Sanity checks. */
|
if (current_cmd->control_type == simple_control)
|
if (current_cmd->control_type == simple_control)
|
error (_("Recursed on a simple control type."));
|
error (_("Recursed on a simple control type."));
|
|
|
if (current_body > current_cmd->body_count)
|
if (current_body > current_cmd->body_count)
|
error (_("Allocated body is smaller than this command type needs."));
|
error (_("Allocated body is smaller than this command type needs."));
|
|
|
/* Read lines from the input stream and build control structures. */
|
/* Read lines from the input stream and build control structures. */
|
while (1)
|
while (1)
|
{
|
{
|
dont_repeat ();
|
dont_repeat ();
|
|
|
next = NULL;
|
next = NULL;
|
val = process_next_line (read_next_line_func (), &next,
|
val = process_next_line (read_next_line_func (), &next,
|
current_cmd->control_type != python_control);
|
current_cmd->control_type != python_control);
|
|
|
/* Just skip blanks and comments. */
|
/* Just skip blanks and comments. */
|
if (val == nop_command)
|
if (val == nop_command)
|
continue;
|
continue;
|
|
|
if (val == end_command)
|
if (val == end_command)
|
{
|
{
|
if (current_cmd->control_type == while_control
|
if (current_cmd->control_type == while_control
|
|| current_cmd->control_type == if_control
|
|| current_cmd->control_type == if_control
|
|| current_cmd->control_type == python_control
|
|| current_cmd->control_type == python_control
|
|| current_cmd->control_type == commands_control)
|
|| current_cmd->control_type == commands_control)
|
{
|
{
|
/* Success reading an entire canned sequence of commands. */
|
/* Success reading an entire canned sequence of commands. */
|
ret = simple_control;
|
ret = simple_control;
|
break;
|
break;
|
}
|
}
|
else
|
else
|
{
|
{
|
ret = invalid_control;
|
ret = invalid_control;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Not the end of a control structure. */
|
/* Not the end of a control structure. */
|
if (val == else_command)
|
if (val == else_command)
|
{
|
{
|
if (current_cmd->control_type == if_control
|
if (current_cmd->control_type == if_control
|
&& current_body == 1)
|
&& current_body == 1)
|
{
|
{
|
realloc_body_list (current_cmd, 2);
|
realloc_body_list (current_cmd, 2);
|
current_body = 2;
|
current_body = 2;
|
child_tail = NULL;
|
child_tail = NULL;
|
continue;
|
continue;
|
}
|
}
|
else
|
else
|
{
|
{
|
ret = invalid_control;
|
ret = invalid_control;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
if (child_tail)
|
if (child_tail)
|
{
|
{
|
child_tail->next = next;
|
child_tail->next = next;
|
}
|
}
|
else
|
else
|
{
|
{
|
body_ptr = current_cmd->body_list;
|
body_ptr = current_cmd->body_list;
|
for (i = 1; i < current_body; i++)
|
for (i = 1; i < current_body; i++)
|
body_ptr++;
|
body_ptr++;
|
|
|
*body_ptr = next;
|
*body_ptr = next;
|
|
|
}
|
}
|
|
|
child_tail = next;
|
child_tail = next;
|
|
|
/* If the latest line is another control structure, then recurse
|
/* If the latest line is another control structure, then recurse
|
on it. */
|
on it. */
|
if (next->control_type == while_control
|
if (next->control_type == while_control
|
|| next->control_type == if_control
|
|| next->control_type == if_control
|
|| next->control_type == python_control
|
|| next->control_type == python_control
|
|| next->control_type == commands_control)
|
|| next->control_type == commands_control)
|
{
|
{
|
control_level++;
|
control_level++;
|
ret = recurse_read_control_structure (read_next_line_func, next);
|
ret = recurse_read_control_structure (read_next_line_func, next);
|
control_level--;
|
control_level--;
|
|
|
if (ret != simple_control)
|
if (ret != simple_control)
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
dont_repeat ();
|
dont_repeat ();
|
|
|
return ret;
|
return ret;
|
}
|
}
|
|
|
/* Read lines from the input stream and accumulate them in a chain of
|
/* Read lines from the input stream and accumulate them in a chain of
|
struct command_line's, which is then returned. For input from a
|
struct command_line's, which is then returned. For input from a
|
terminal, the special command "end" is used to mark the end of the
|
terminal, the special command "end" is used to mark the end of the
|
input, and is not included in the returned chain of commands.
|
input, and is not included in the returned chain of commands.
|
|
|
If PARSE_COMMANDS is true, strip leading whitespace (trailing whitespace
|
If PARSE_COMMANDS is true, strip leading whitespace (trailing whitespace
|
is always stripped) in the line and attempt to recognize GDB control
|
is always stripped) in the line and attempt to recognize GDB control
|
commands. Otherwise, only "end" is recognized. */
|
commands. Otherwise, only "end" is recognized. */
|
|
|
#define END_MESSAGE "End with a line saying just \"end\"."
|
#define END_MESSAGE "End with a line saying just \"end\"."
|
|
|
struct command_line *
|
struct command_line *
|
read_command_lines (char *prompt_arg, int from_tty, int parse_commands)
|
read_command_lines (char *prompt_arg, int from_tty, int parse_commands)
|
{
|
{
|
struct command_line *head;
|
struct command_line *head;
|
|
|
if (from_tty && input_from_terminal_p ())
|
if (from_tty && input_from_terminal_p ())
|
{
|
{
|
if (deprecated_readline_begin_hook)
|
if (deprecated_readline_begin_hook)
|
{
|
{
|
/* Note - intentional to merge messages with no newline */
|
/* Note - intentional to merge messages with no newline */
|
(*deprecated_readline_begin_hook) ("%s %s\n", prompt_arg, END_MESSAGE);
|
(*deprecated_readline_begin_hook) ("%s %s\n", prompt_arg, END_MESSAGE);
|
}
|
}
|
else
|
else
|
{
|
{
|
printf_unfiltered ("%s\n%s\n", prompt_arg, END_MESSAGE);
|
printf_unfiltered ("%s\n%s\n", prompt_arg, END_MESSAGE);
|
gdb_flush (gdb_stdout);
|
gdb_flush (gdb_stdout);
|
}
|
}
|
}
|
}
|
|
|
head = read_command_lines_1 (read_next_line, parse_commands);
|
head = read_command_lines_1 (read_next_line, parse_commands);
|
|
|
if (deprecated_readline_end_hook && from_tty && input_from_terminal_p ())
|
if (deprecated_readline_end_hook && from_tty && input_from_terminal_p ())
|
{
|
{
|
(*deprecated_readline_end_hook) ();
|
(*deprecated_readline_end_hook) ();
|
}
|
}
|
return (head);
|
return (head);
|
}
|
}
|
|
|
/* Act the same way as read_command_lines, except that each new line is
|
/* Act the same way as read_command_lines, except that each new line is
|
obtained using READ_NEXT_LINE_FUNC. */
|
obtained using READ_NEXT_LINE_FUNC. */
|
|
|
struct command_line *
|
struct command_line *
|
read_command_lines_1 (char * (*read_next_line_func) (), int parse_commands)
|
read_command_lines_1 (char * (*read_next_line_func) (), int parse_commands)
|
{
|
{
|
struct command_line *head, *tail, *next;
|
struct command_line *head, *tail, *next;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
enum command_control_type ret;
|
enum command_control_type ret;
|
enum misc_command_type val;
|
enum misc_command_type val;
|
|
|
control_level = 0;
|
control_level = 0;
|
head = tail = NULL;
|
head = tail = NULL;
|
old_chain = NULL;
|
old_chain = NULL;
|
|
|
while (1)
|
while (1)
|
{
|
{
|
dont_repeat ();
|
dont_repeat ();
|
val = process_next_line (read_next_line_func (), &next, parse_commands);
|
val = process_next_line (read_next_line_func (), &next, parse_commands);
|
|
|
/* Ignore blank lines or comments. */
|
/* Ignore blank lines or comments. */
|
if (val == nop_command)
|
if (val == nop_command)
|
continue;
|
continue;
|
|
|
if (val == end_command)
|
if (val == end_command)
|
{
|
{
|
ret = simple_control;
|
ret = simple_control;
|
break;
|
break;
|
}
|
}
|
|
|
if (val != ok_command)
|
if (val != ok_command)
|
{
|
{
|
ret = invalid_control;
|
ret = invalid_control;
|
break;
|
break;
|
}
|
}
|
|
|
if (next->control_type == while_control
|
if (next->control_type == while_control
|
|| next->control_type == if_control
|
|| next->control_type == if_control
|
|| next->control_type == python_control
|
|| next->control_type == python_control
|
|| next->control_type == commands_control)
|
|| next->control_type == commands_control)
|
{
|
{
|
control_level++;
|
control_level++;
|
ret = recurse_read_control_structure (read_next_line_func, next);
|
ret = recurse_read_control_structure (read_next_line_func, next);
|
control_level--;
|
control_level--;
|
|
|
if (ret == invalid_control)
|
if (ret == invalid_control)
|
break;
|
break;
|
}
|
}
|
|
|
if (tail)
|
if (tail)
|
{
|
{
|
tail->next = next;
|
tail->next = next;
|
}
|
}
|
else
|
else
|
{
|
{
|
head = next;
|
head = next;
|
old_chain = make_cleanup_free_command_lines (&head);
|
old_chain = make_cleanup_free_command_lines (&head);
|
}
|
}
|
tail = next;
|
tail = next;
|
}
|
}
|
|
|
dont_repeat ();
|
dont_repeat ();
|
|
|
if (head)
|
if (head)
|
{
|
{
|
if (ret != invalid_control)
|
if (ret != invalid_control)
|
{
|
{
|
discard_cleanups (old_chain);
|
discard_cleanups (old_chain);
|
}
|
}
|
else
|
else
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
}
|
}
|
|
|
return head;
|
return head;
|
}
|
}
|
|
|
/* Free a chain of struct command_line's. */
|
/* Free a chain of struct command_line's. */
|
|
|
void
|
void
|
free_command_lines (struct command_line **lptr)
|
free_command_lines (struct command_line **lptr)
|
{
|
{
|
struct command_line *l = *lptr;
|
struct command_line *l = *lptr;
|
struct command_line *next;
|
struct command_line *next;
|
struct command_line **blist;
|
struct command_line **blist;
|
int i;
|
int i;
|
|
|
while (l)
|
while (l)
|
{
|
{
|
if (l->body_count > 0)
|
if (l->body_count > 0)
|
{
|
{
|
blist = l->body_list;
|
blist = l->body_list;
|
for (i = 0; i < l->body_count; i++, blist++)
|
for (i = 0; i < l->body_count; i++, blist++)
|
free_command_lines (blist);
|
free_command_lines (blist);
|
}
|
}
|
next = l->next;
|
next = l->next;
|
xfree (l->line);
|
xfree (l->line);
|
xfree (l);
|
xfree (l);
|
l = next;
|
l = next;
|
}
|
}
|
*lptr = NULL;
|
*lptr = NULL;
|
}
|
}
|
|
|
static void
|
static void
|
do_free_command_lines_cleanup (void *arg)
|
do_free_command_lines_cleanup (void *arg)
|
{
|
{
|
free_command_lines (arg);
|
free_command_lines (arg);
|
}
|
}
|
|
|
struct cleanup *
|
struct cleanup *
|
make_cleanup_free_command_lines (struct command_line **arg)
|
make_cleanup_free_command_lines (struct command_line **arg)
|
{
|
{
|
return make_cleanup (do_free_command_lines_cleanup, arg);
|
return make_cleanup (do_free_command_lines_cleanup, arg);
|
}
|
}
|
|
|
struct command_line *
|
struct command_line *
|
copy_command_lines (struct command_line *cmds)
|
copy_command_lines (struct command_line *cmds)
|
{
|
{
|
struct command_line *result = NULL;
|
struct command_line *result = NULL;
|
|
|
if (cmds)
|
if (cmds)
|
{
|
{
|
result = (struct command_line *) xmalloc (sizeof (struct command_line));
|
result = (struct command_line *) xmalloc (sizeof (struct command_line));
|
|
|
result->next = copy_command_lines (cmds->next);
|
result->next = copy_command_lines (cmds->next);
|
result->line = xstrdup (cmds->line);
|
result->line = xstrdup (cmds->line);
|
result->control_type = cmds->control_type;
|
result->control_type = cmds->control_type;
|
result->body_count = cmds->body_count;
|
result->body_count = cmds->body_count;
|
if (cmds->body_count > 0)
|
if (cmds->body_count > 0)
|
{
|
{
|
int i;
|
int i;
|
|
|
result->body_list = (struct command_line **)
|
result->body_list = (struct command_line **)
|
xmalloc (sizeof (struct command_line *) * cmds->body_count);
|
xmalloc (sizeof (struct command_line *) * cmds->body_count);
|
|
|
for (i = 0; i < cmds->body_count; i++)
|
for (i = 0; i < cmds->body_count; i++)
|
result->body_list[i] = copy_command_lines (cmds->body_list[i]);
|
result->body_list[i] = copy_command_lines (cmds->body_list[i]);
|
}
|
}
|
else
|
else
|
result->body_list = NULL;
|
result->body_list = NULL;
|
}
|
}
|
|
|
return result;
|
return result;
|
}
|
}
|
|
|
/* Validate that *COMNAME is a valid name for a command. Return the
|
/* Validate that *COMNAME is a valid name for a command. Return the
|
containing command list, in case it starts with a prefix command.
|
containing command list, in case it starts with a prefix command.
|
The prefix must already exist. *COMNAME is advanced to point after
|
The prefix must already exist. *COMNAME is advanced to point after
|
any prefix, and a NUL character overwrites the space after the
|
any prefix, and a NUL character overwrites the space after the
|
prefix. */
|
prefix. */
|
|
|
static struct cmd_list_element **
|
static struct cmd_list_element **
|
validate_comname (char **comname)
|
validate_comname (char **comname)
|
{
|
{
|
struct cmd_list_element **list = &cmdlist;
|
struct cmd_list_element **list = &cmdlist;
|
char *p, *last_word;
|
char *p, *last_word;
|
|
|
if (*comname == 0)
|
if (*comname == 0)
|
error_no_arg (_("name of command to define"));
|
error_no_arg (_("name of command to define"));
|
|
|
/* Find the last word of the argument. */
|
/* Find the last word of the argument. */
|
p = *comname + strlen (*comname);
|
p = *comname + strlen (*comname);
|
while (p > *comname && isspace (p[-1]))
|
while (p > *comname && isspace (p[-1]))
|
p--;
|
p--;
|
while (p > *comname && !isspace (p[-1]))
|
while (p > *comname && !isspace (p[-1]))
|
p--;
|
p--;
|
last_word = p;
|
last_word = p;
|
|
|
/* Find the corresponding command list. */
|
/* Find the corresponding command list. */
|
if (last_word != *comname)
|
if (last_word != *comname)
|
{
|
{
|
struct cmd_list_element *c;
|
struct cmd_list_element *c;
|
char saved_char, *tem = *comname;
|
char saved_char, *tem = *comname;
|
|
|
/* Separate the prefix and the command. */
|
/* Separate the prefix and the command. */
|
saved_char = last_word[-1];
|
saved_char = last_word[-1];
|
last_word[-1] = '\0';
|
last_word[-1] = '\0';
|
|
|
c = lookup_cmd (&tem, cmdlist, "", 0, 1);
|
c = lookup_cmd (&tem, cmdlist, "", 0, 1);
|
if (c->prefixlist == NULL)
|
if (c->prefixlist == NULL)
|
error (_("\"%s\" is not a prefix command."), *comname);
|
error (_("\"%s\" is not a prefix command."), *comname);
|
|
|
list = c->prefixlist;
|
list = c->prefixlist;
|
last_word[-1] = saved_char;
|
last_word[-1] = saved_char;
|
*comname = last_word;
|
*comname = last_word;
|
}
|
}
|
|
|
p = *comname;
|
p = *comname;
|
while (*p)
|
while (*p)
|
{
|
{
|
if (!isalnum (*p) && *p != '-' && *p != '_')
|
if (!isalnum (*p) && *p != '-' && *p != '_')
|
error (_("Junk in argument list: \"%s\""), p);
|
error (_("Junk in argument list: \"%s\""), p);
|
p++;
|
p++;
|
}
|
}
|
|
|
return list;
|
return list;
|
}
|
}
|
|
|
/* This is just a placeholder in the command data structures. */
|
/* This is just a placeholder in the command data structures. */
|
static void
|
static void
|
user_defined_command (char *ignore, int from_tty)
|
user_defined_command (char *ignore, int from_tty)
|
{
|
{
|
}
|
}
|
|
|
void
|
void
|
define_command (char *comname, int from_tty)
|
define_command (char *comname, int from_tty)
|
{
|
{
|
#define MAX_TMPBUF 128
|
#define MAX_TMPBUF 128
|
enum cmd_hook_type
|
enum cmd_hook_type
|
{
|
{
|
CMD_NO_HOOK = 0,
|
CMD_NO_HOOK = 0,
|
CMD_PRE_HOOK,
|
CMD_PRE_HOOK,
|
CMD_POST_HOOK
|
CMD_POST_HOOK
|
};
|
};
|
struct command_line *cmds;
|
struct command_line *cmds;
|
struct cmd_list_element *c, *newc, *oldc, *hookc = 0, **list;
|
struct cmd_list_element *c, *newc, *oldc, *hookc = 0, **list;
|
char *tem, *tem2, *comfull;
|
char *tem, *tem2, *comfull;
|
char tmpbuf[MAX_TMPBUF];
|
char tmpbuf[MAX_TMPBUF];
|
int hook_type = CMD_NO_HOOK;
|
int hook_type = CMD_NO_HOOK;
|
int hook_name_size = 0;
|
int hook_name_size = 0;
|
|
|
#define HOOK_STRING "hook-"
|
#define HOOK_STRING "hook-"
|
#define HOOK_LEN 5
|
#define HOOK_LEN 5
|
#define HOOK_POST_STRING "hookpost-"
|
#define HOOK_POST_STRING "hookpost-"
|
#define HOOK_POST_LEN 9
|
#define HOOK_POST_LEN 9
|
|
|
comfull = comname;
|
comfull = comname;
|
list = validate_comname (&comname);
|
list = validate_comname (&comname);
|
|
|
/* Look it up, and verify that we got an exact match. */
|
/* Look it up, and verify that we got an exact match. */
|
tem = comname;
|
tem = comname;
|
c = lookup_cmd (&tem, *list, "", -1, 1);
|
c = lookup_cmd (&tem, *list, "", -1, 1);
|
if (c && strcmp (comname, c->name) != 0)
|
if (c && strcmp (comname, c->name) != 0)
|
c = 0;
|
c = 0;
|
|
|
if (c)
|
if (c)
|
{
|
{
|
int q;
|
int q;
|
if (c->class == class_user || c->class == class_alias)
|
if (c->class == class_user || c->class == class_alias)
|
q = query (_("Redefine command \"%s\"? "), c->name);
|
q = query (_("Redefine command \"%s\"? "), c->name);
|
else
|
else
|
q = query (_("Really redefine built-in command \"%s\"? "), c->name);
|
q = query (_("Really redefine built-in command \"%s\"? "), c->name);
|
if (!q)
|
if (!q)
|
error (_("Command \"%s\" not redefined."), c->name);
|
error (_("Command \"%s\" not redefined."), c->name);
|
}
|
}
|
|
|
/* If this new command is a hook, then mark the command which it
|
/* If this new command is a hook, then mark the command which it
|
is hooking. Note that we allow hooking `help' commands, so that
|
is hooking. Note that we allow hooking `help' commands, so that
|
we can hook the `stop' pseudo-command. */
|
we can hook the `stop' pseudo-command. */
|
|
|
if (!strncmp (comname, HOOK_STRING, HOOK_LEN))
|
if (!strncmp (comname, HOOK_STRING, HOOK_LEN))
|
{
|
{
|
hook_type = CMD_PRE_HOOK;
|
hook_type = CMD_PRE_HOOK;
|
hook_name_size = HOOK_LEN;
|
hook_name_size = HOOK_LEN;
|
}
|
}
|
else if (!strncmp (comname, HOOK_POST_STRING, HOOK_POST_LEN))
|
else if (!strncmp (comname, HOOK_POST_STRING, HOOK_POST_LEN))
|
{
|
{
|
hook_type = CMD_POST_HOOK;
|
hook_type = CMD_POST_HOOK;
|
hook_name_size = HOOK_POST_LEN;
|
hook_name_size = HOOK_POST_LEN;
|
}
|
}
|
|
|
if (hook_type != CMD_NO_HOOK)
|
if (hook_type != CMD_NO_HOOK)
|
{
|
{
|
/* Look up cmd it hooks, and verify that we got an exact match. */
|
/* Look up cmd it hooks, and verify that we got an exact match. */
|
tem = comname + hook_name_size;
|
tem = comname + hook_name_size;
|
hookc = lookup_cmd (&tem, *list, "", -1, 0);
|
hookc = lookup_cmd (&tem, *list, "", -1, 0);
|
if (hookc && strcmp (comname + hook_name_size, hookc->name) != 0)
|
if (hookc && strcmp (comname + hook_name_size, hookc->name) != 0)
|
hookc = 0;
|
hookc = 0;
|
if (!hookc)
|
if (!hookc)
|
{
|
{
|
warning (_("Your new `%s' command does not hook any existing command."),
|
warning (_("Your new `%s' command does not hook any existing command."),
|
comfull);
|
comfull);
|
if (!query (_("Proceed? ")))
|
if (!query (_("Proceed? ")))
|
error (_("Not confirmed."));
|
error (_("Not confirmed."));
|
}
|
}
|
}
|
}
|
|
|
comname = xstrdup (comname);
|
comname = xstrdup (comname);
|
|
|
/* If the rest of the commands will be case insensitive, this one
|
/* If the rest of the commands will be case insensitive, this one
|
should behave in the same manner. */
|
should behave in the same manner. */
|
for (tem = comname; *tem; tem++)
|
for (tem = comname; *tem; tem++)
|
if (isupper (*tem))
|
if (isupper (*tem))
|
*tem = tolower (*tem);
|
*tem = tolower (*tem);
|
|
|
sprintf (tmpbuf, "Type commands for definition of \"%s\".", comfull);
|
sprintf (tmpbuf, "Type commands for definition of \"%s\".", comfull);
|
cmds = read_command_lines (tmpbuf, from_tty, 1);
|
cmds = read_command_lines (tmpbuf, from_tty, 1);
|
|
|
if (c && c->class == class_user)
|
if (c && c->class == class_user)
|
free_command_lines (&c->user_commands);
|
free_command_lines (&c->user_commands);
|
|
|
newc = add_cmd (comname, class_user, user_defined_command,
|
newc = add_cmd (comname, class_user, user_defined_command,
|
(c && c->class == class_user)
|
(c && c->class == class_user)
|
? c->doc : xstrdup ("User-defined."), list);
|
? c->doc : xstrdup ("User-defined."), list);
|
newc->user_commands = cmds;
|
newc->user_commands = cmds;
|
|
|
/* If this new command is a hook, then mark both commands as being
|
/* If this new command is a hook, then mark both commands as being
|
tied. */
|
tied. */
|
if (hookc)
|
if (hookc)
|
{
|
{
|
switch (hook_type)
|
switch (hook_type)
|
{
|
{
|
case CMD_PRE_HOOK:
|
case CMD_PRE_HOOK:
|
hookc->hook_pre = newc; /* Target gets hooked. */
|
hookc->hook_pre = newc; /* Target gets hooked. */
|
newc->hookee_pre = hookc; /* We are marked as hooking target cmd. */
|
newc->hookee_pre = hookc; /* We are marked as hooking target cmd. */
|
break;
|
break;
|
case CMD_POST_HOOK:
|
case CMD_POST_HOOK:
|
hookc->hook_post = newc; /* Target gets hooked. */
|
hookc->hook_post = newc; /* Target gets hooked. */
|
newc->hookee_post = hookc; /* We are marked as hooking target cmd. */
|
newc->hookee_post = hookc; /* We are marked as hooking target cmd. */
|
break;
|
break;
|
default:
|
default:
|
/* Should never come here as hookc would be 0. */
|
/* Should never come here as hookc would be 0. */
|
internal_error (__FILE__, __LINE__, _("bad switch"));
|
internal_error (__FILE__, __LINE__, _("bad switch"));
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
void
|
void
|
document_command (char *comname, int from_tty)
|
document_command (char *comname, int from_tty)
|
{
|
{
|
struct command_line *doclines;
|
struct command_line *doclines;
|
struct cmd_list_element *c, **list;
|
struct cmd_list_element *c, **list;
|
char *tem, *comfull;
|
char *tem, *comfull;
|
char tmpbuf[128];
|
char tmpbuf[128];
|
|
|
comfull = comname;
|
comfull = comname;
|
list = validate_comname (&comname);
|
list = validate_comname (&comname);
|
|
|
tem = comname;
|
tem = comname;
|
c = lookup_cmd (&tem, *list, "", 0, 1);
|
c = lookup_cmd (&tem, *list, "", 0, 1);
|
|
|
if (c->class != class_user)
|
if (c->class != class_user)
|
error (_("Command \"%s\" is built-in."), comfull);
|
error (_("Command \"%s\" is built-in."), comfull);
|
|
|
sprintf (tmpbuf, "Type documentation for \"%s\".", comfull);
|
sprintf (tmpbuf, "Type documentation for \"%s\".", comfull);
|
doclines = read_command_lines (tmpbuf, from_tty, 0);
|
doclines = read_command_lines (tmpbuf, from_tty, 0);
|
|
|
if (c->doc)
|
if (c->doc)
|
xfree (c->doc);
|
xfree (c->doc);
|
|
|
{
|
{
|
struct command_line *cl1;
|
struct command_line *cl1;
|
int len = 0;
|
int len = 0;
|
|
|
for (cl1 = doclines; cl1; cl1 = cl1->next)
|
for (cl1 = doclines; cl1; cl1 = cl1->next)
|
len += strlen (cl1->line) + 1;
|
len += strlen (cl1->line) + 1;
|
|
|
c->doc = (char *) xmalloc (len + 1);
|
c->doc = (char *) xmalloc (len + 1);
|
*c->doc = 0;
|
*c->doc = 0;
|
|
|
for (cl1 = doclines; cl1; cl1 = cl1->next)
|
for (cl1 = doclines; cl1; cl1 = cl1->next)
|
{
|
{
|
strcat (c->doc, cl1->line);
|
strcat (c->doc, cl1->line);
|
if (cl1->next)
|
if (cl1->next)
|
strcat (c->doc, "\n");
|
strcat (c->doc, "\n");
|
}
|
}
|
}
|
}
|
|
|
free_command_lines (&doclines);
|
free_command_lines (&doclines);
|
}
|
}
|
|
|
struct source_cleanup_lines_args
|
struct source_cleanup_lines_args
|
{
|
{
|
int old_line;
|
int old_line;
|
char *old_file;
|
char *old_file;
|
};
|
};
|
|
|
static void
|
static void
|
source_cleanup_lines (void *args)
|
source_cleanup_lines (void *args)
|
{
|
{
|
struct source_cleanup_lines_args *p =
|
struct source_cleanup_lines_args *p =
|
(struct source_cleanup_lines_args *) args;
|
(struct source_cleanup_lines_args *) args;
|
source_line_number = p->old_line;
|
source_line_number = p->old_line;
|
source_file_name = p->old_file;
|
source_file_name = p->old_file;
|
}
|
}
|
|
|
struct wrapped_read_command_file_args
|
struct wrapped_read_command_file_args
|
{
|
{
|
FILE *stream;
|
FILE *stream;
|
};
|
};
|
|
|
static void
|
static void
|
wrapped_read_command_file (struct ui_out *uiout, void *data)
|
wrapped_read_command_file (struct ui_out *uiout, void *data)
|
{
|
{
|
struct wrapped_read_command_file_args *args = data;
|
struct wrapped_read_command_file_args *args = data;
|
read_command_file (args->stream);
|
read_command_file (args->stream);
|
}
|
}
|
|
|
/* Used to implement source_command */
|
/* Used to implement source_command */
|
|
|
void
|
void
|
script_from_file (FILE *stream, char *file)
|
script_from_file (FILE *stream, char *file)
|
{
|
{
|
struct cleanup *old_cleanups;
|
struct cleanup *old_cleanups;
|
struct source_cleanup_lines_args old_lines;
|
struct source_cleanup_lines_args old_lines;
|
int needed_length;
|
int needed_length;
|
|
|
if (stream == NULL)
|
if (stream == NULL)
|
internal_error (__FILE__, __LINE__, _("called with NULL file pointer!"));
|
internal_error (__FILE__, __LINE__, _("called with NULL file pointer!"));
|
|
|
old_cleanups = make_cleanup_fclose (stream);
|
old_cleanups = make_cleanup_fclose (stream);
|
|
|
old_lines.old_line = source_line_number;
|
old_lines.old_line = source_line_number;
|
old_lines.old_file = source_file_name;
|
old_lines.old_file = source_file_name;
|
make_cleanup (source_cleanup_lines, &old_lines);
|
make_cleanup (source_cleanup_lines, &old_lines);
|
source_line_number = 0;
|
source_line_number = 0;
|
source_file_name = file;
|
source_file_name = file;
|
/* This will get set every time we read a line. So it won't stay "" for
|
/* This will get set every time we read a line. So it won't stay "" for
|
long. */
|
long. */
|
error_pre_print = "";
|
error_pre_print = "";
|
|
|
{
|
{
|
struct gdb_exception e;
|
struct gdb_exception e;
|
struct wrapped_read_command_file_args args;
|
struct wrapped_read_command_file_args args;
|
args.stream = stream;
|
args.stream = stream;
|
e = catch_exception (uiout, wrapped_read_command_file, &args,
|
e = catch_exception (uiout, wrapped_read_command_file, &args,
|
RETURN_MASK_ERROR);
|
RETURN_MASK_ERROR);
|
switch (e.reason)
|
switch (e.reason)
|
{
|
{
|
case 0:
|
case 0:
|
break;
|
break;
|
case RETURN_ERROR:
|
case RETURN_ERROR:
|
/* Re-throw the error, but with the file name information
|
/* Re-throw the error, but with the file name information
|
prepended. */
|
prepended. */
|
throw_error (e.error,
|
throw_error (e.error,
|
_("%s:%d: Error in sourced command file:\n%s"),
|
_("%s:%d: Error in sourced command file:\n%s"),
|
source_file_name, source_line_number, e.message);
|
source_file_name, source_line_number, e.message);
|
default:
|
default:
|
internal_error (__FILE__, __LINE__, _("bad reason"));
|
internal_error (__FILE__, __LINE__, _("bad reason"));
|
}
|
}
|
}
|
}
|
|
|
do_cleanups (old_cleanups);
|
do_cleanups (old_cleanups);
|
}
|
}
|
|
|
/* Print the definition of user command C to STREAM. Or, if C is a
|
/* Print the definition of user command C to STREAM. Or, if C is a
|
prefix command, show the definitions of all user commands under C
|
prefix command, show the definitions of all user commands under C
|
(recursively). PREFIX and NAME combined are the name of the
|
(recursively). PREFIX and NAME combined are the name of the
|
current command. */
|
current command. */
|
void
|
void
|
show_user_1 (struct cmd_list_element *c, char *prefix, char *name,
|
show_user_1 (struct cmd_list_element *c, char *prefix, char *name,
|
struct ui_file *stream)
|
struct ui_file *stream)
|
{
|
{
|
struct command_line *cmdlines;
|
struct command_line *cmdlines;
|
|
|
if (c->prefixlist != NULL)
|
if (c->prefixlist != NULL)
|
{
|
{
|
char *prefixname = c->prefixname;
|
char *prefixname = c->prefixname;
|
for (c = *c->prefixlist; c != NULL; c = c->next)
|
for (c = *c->prefixlist; c != NULL; c = c->next)
|
if (c->class == class_user || c->prefixlist != NULL)
|
if (c->class == class_user || c->prefixlist != NULL)
|
show_user_1 (c, prefixname, c->name, gdb_stdout);
|
show_user_1 (c, prefixname, c->name, gdb_stdout);
|
return;
|
return;
|
}
|
}
|
|
|
cmdlines = c->user_commands;
|
cmdlines = c->user_commands;
|
if (!cmdlines)
|
if (!cmdlines)
|
return;
|
return;
|
fprintf_filtered (stream, "User command \"%s%s\":\n", prefix, name);
|
fprintf_filtered (stream, "User command \"%s%s\":\n", prefix, name);
|
|
|
print_command_lines (uiout, cmdlines, 1);
|
print_command_lines (uiout, cmdlines, 1);
|
fputs_filtered ("\n", stream);
|
fputs_filtered ("\n", stream);
|
}
|
}
|
|
|
|
|
