1 /* CLI Definitions for GDB, the GNU debugger.
3 Copyright (c) 2002, 2003, 2007, 2008, 2009, 2010
4 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 #include "event-top.h"
27 #include "top.h" /* for "execute_command" */
28 #include "gdb_string.h"
29 #include "exceptions.h"
31 struct ui_out *cli_uiout;
33 /* These are the ui_out and the interpreter for the console
36 /* Longjmp-safe wrapper for "execute_command". */
37 static struct gdb_exception safe_execute_command (struct ui_out *uiout,
40 struct captured_execute_command_args
46 /* These implement the cli out interpreter: */
49 cli_interpreter_init (int top_level)
55 cli_interpreter_resume (void *data)
57 struct ui_file *stream;
59 /*sync_execution = 1; */
61 /* gdb_setup_readline will change gdb_stdout. If the CLI was
62 previously writing to gdb_stdout, then set it to the new
63 gdb_stdout afterwards. */
65 stream = cli_out_set_stream (cli_uiout, gdb_stdout);
66 if (stream != gdb_stdout)
68 cli_out_set_stream (cli_uiout, stream);
72 gdb_setup_readline ();
75 cli_out_set_stream (cli_uiout, gdb_stdout);
81 cli_interpreter_suspend (void *data)
83 gdb_disable_readline ();
87 /* Don't display the prompt if we are set quiet. */
89 cli_interpreter_display_prompt_p (void *data)
91 if (interp_quiet_p (NULL))
97 static struct gdb_exception
98 cli_interpreter_exec (void *data, const char *command_str)
100 struct ui_file *old_stream;
101 struct gdb_exception result;
103 /* FIXME: cagney/2003-02-01: Need to const char *propogate
104 safe_execute_command. */
105 char *str = strcpy (alloca (strlen (command_str) + 1), command_str);
107 /* gdb_stdout could change between the time cli_uiout was
108 initialized and now. Since we're probably using a different
109 interpreter which has a new ui_file for gdb_stdout, use that one
110 instead of the default.
112 It is important that it gets reset everytime, since the user
113 could set gdb to use a different interpreter. */
114 old_stream = cli_out_set_stream (cli_uiout, gdb_stdout);
115 result = safe_execute_command (cli_uiout, str, 1);
116 cli_out_set_stream (cli_uiout, old_stream);
121 do_captured_execute_command (struct ui_out *uiout, void *data)
123 struct captured_execute_command_args *args =
124 (struct captured_execute_command_args *) data;
126 execute_command (args->command, args->from_tty);
129 static struct gdb_exception
130 safe_execute_command (struct ui_out *uiout, char *command, int from_tty)
132 struct gdb_exception e;
133 struct captured_execute_command_args args;
135 args.command = command;
136 args.from_tty = from_tty;
137 e = catch_exception (uiout, do_captured_execute_command, &args,
139 /* FIXME: cagney/2005-01-13: This shouldn't be needed. Instead the
140 caller should print the exception. */
141 exception_print (gdb_stderr, e);
146 /* Standard gdb initialization hook. */
147 extern initialize_file_ftype _initialize_cli_interp; /* -Wmissing-prototypes */
150 _initialize_cli_interp (void)
152 static const struct interp_procs procs = {
153 cli_interpreter_init, /* init_proc */
154 cli_interpreter_resume, /* resume_proc */
155 cli_interpreter_suspend, /* suspend_proc */
156 cli_interpreter_exec, /* exec_proc */
157 cli_interpreter_display_prompt_p /* prompt_proc_p */
159 struct interp *cli_interp;
161 /* Create a default uiout builder for the CLI. */
162 cli_uiout = cli_out_new (gdb_stdout);
163 cli_interp = interp_new (INTERP_CONSOLE, NULL, cli_uiout, &procs);
165 interp_add (cli_interp);