1 /* CLI Definitions for GDB, the GNU debugger.
3 Copyright (c) 2002, 2003, 2007, 2008, 2009 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #include "event-top.h"
26 #include "top.h" /* for "execute_command" */
27 #include "gdb_string.h"
28 #include "exceptions.h"
30 struct ui_out
*cli_uiout
;
32 /* These are the ui_out and the interpreter for the console interpreter. */
34 /* Longjmp-safe wrapper for "execute_command". */
35 static struct gdb_exception
safe_execute_command (struct ui_out
*uiout
,
36 char *command
, int from_tty
);
37 struct captured_execute_command_args
43 /* These implement the cli out interpreter: */
46 cli_interpreter_init (int top_level
)
52 cli_interpreter_resume (void *data
)
54 struct ui_file
*stream
;
56 /*sync_execution = 1; */
58 /* gdb_setup_readline will change gdb_stdout. If the CLI was previously
59 writing to gdb_stdout, then set it to the new gdb_stdout afterwards. */
61 stream
= cli_out_set_stream (cli_uiout
, gdb_stdout
);
62 if (stream
!= gdb_stdout
)
64 cli_out_set_stream (cli_uiout
, stream
);
68 gdb_setup_readline ();
71 cli_out_set_stream (cli_uiout
, gdb_stdout
);
77 cli_interpreter_suspend (void *data
)
79 gdb_disable_readline ();
83 /* Don't display the prompt if we are set quiet. */
85 cli_interpreter_display_prompt_p (void *data
)
87 if (interp_quiet_p (NULL
))
93 static struct gdb_exception
94 cli_interpreter_exec (void *data
, const char *command_str
)
96 struct ui_file
*old_stream
;
97 struct gdb_exception result
;
99 /* FIXME: cagney/2003-02-01: Need to const char *propogate
100 safe_execute_command. */
101 char *str
= strcpy (alloca (strlen (command_str
) + 1), command_str
);
103 /* gdb_stdout could change between the time cli_uiout was initialized
104 and now. Since we're probably using a different interpreter which has
105 a new ui_file for gdb_stdout, use that one instead of the default.
107 It is important that it gets reset everytime, since the user could
108 set gdb to use a different interpreter. */
109 old_stream
= cli_out_set_stream (cli_uiout
, gdb_stdout
);
110 result
= safe_execute_command (cli_uiout
, str
, 1);
111 cli_out_set_stream (cli_uiout
, old_stream
);
116 do_captured_execute_command (struct ui_out
*uiout
, void *data
)
118 struct captured_execute_command_args
*args
=
119 (struct captured_execute_command_args
*) data
;
120 execute_command (args
->command
, args
->from_tty
);
123 static struct gdb_exception
124 safe_execute_command (struct ui_out
*uiout
, char *command
, int from_tty
)
126 struct gdb_exception e
;
127 struct captured_execute_command_args args
;
128 args
.command
= command
;
129 args
.from_tty
= from_tty
;
130 e
= catch_exception (uiout
, do_captured_execute_command
, &args
,
132 /* FIXME: cagney/2005-01-13: This shouldn't be needed. Instead the
133 caller should print the exception. */
134 exception_print (gdb_stderr
, e
);
139 /* Standard gdb initialization hook. */
140 extern initialize_file_ftype _initialize_cli_interp
; /* -Wmissing-prototypes */
143 _initialize_cli_interp (void)
145 static const struct interp_procs procs
= {
146 cli_interpreter_init
, /* init_proc */
147 cli_interpreter_resume
, /* resume_proc */
148 cli_interpreter_suspend
, /* suspend_proc */
149 cli_interpreter_exec
, /* exec_proc */
150 cli_interpreter_display_prompt_p
/* prompt_proc_p */
152 struct interp
*cli_interp
;
154 /* Create a default uiout builder for the CLI. */
155 cli_uiout
= cli_out_new (gdb_stdout
);
156 cli_interp
= interp_new (INTERP_CONSOLE
, NULL
, cli_uiout
, &procs
);
158 interp_add (cli_interp
);