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4a8f6654 AC |
1 | /* CLI Definitions for GDB, the GNU debugger. |
2 | ||
ecd75fc8 | 3 | Copyright (C) 2002-2014 Free Software Foundation, Inc. |
4a8f6654 AC |
4 | |
5 | This file is part of GDB. | |
6 | ||
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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
4a8f6654 AC |
10 | (at your option) any later version. |
11 | ||
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
4a8f6654 AC |
19 | |
20 | #include "defs.h" | |
21 | #include "interps.h" | |
4a8f6654 AC |
22 | #include "event-top.h" |
23 | #include "ui-out.h" | |
24 | #include "cli-out.h" | |
25 | #include "top.h" /* for "execute_command" */ | |
0e9f083f | 26 | #include <string.h> |
60250e8b | 27 | #include "exceptions.h" |
4a8f6654 AC |
28 | |
29 | struct ui_out *cli_uiout; | |
30 | ||
ebcd3b23 MS |
31 | /* These are the ui_out and the interpreter for the console |
32 | interpreter. */ | |
4a8f6654 | 33 | |
4791eb66 | 34 | /* Longjmp-safe wrapper for "execute_command". */ |
71fff37b | 35 | static struct gdb_exception safe_execute_command (struct ui_out *uiout, |
ebcd3b23 MS |
36 | char *command, |
37 | int from_tty); | |
4a8f6654 AC |
38 | /* These implement the cli out interpreter: */ |
39 | ||
40 | static void * | |
4801a9a3 | 41 | cli_interpreter_init (struct interp *self, int top_level) |
4a8f6654 AC |
42 | { |
43 | return NULL; | |
44 | } | |
45 | ||
46 | static int | |
47 | cli_interpreter_resume (void *data) | |
48 | { | |
38caaeec DJ |
49 | struct ui_file *stream; |
50 | ||
4a8f6654 | 51 | /*sync_execution = 1; */ |
38caaeec | 52 | |
ebcd3b23 MS |
53 | /* gdb_setup_readline will change gdb_stdout. If the CLI was |
54 | previously writing to gdb_stdout, then set it to the new | |
55 | gdb_stdout afterwards. */ | |
38caaeec DJ |
56 | |
57 | stream = cli_out_set_stream (cli_uiout, gdb_stdout); | |
58 | if (stream != gdb_stdout) | |
59 | { | |
60 | cli_out_set_stream (cli_uiout, stream); | |
61 | stream = NULL; | |
62 | } | |
63 | ||
4a8f6654 | 64 | gdb_setup_readline (); |
38caaeec DJ |
65 | |
66 | if (stream != NULL) | |
67 | cli_out_set_stream (cli_uiout, gdb_stdout); | |
68 | ||
4a8f6654 AC |
69 | return 1; |
70 | } | |
71 | ||
72 | static int | |
73 | cli_interpreter_suspend (void *data) | |
74 | { | |
75 | gdb_disable_readline (); | |
76 | return 1; | |
77 | } | |
78 | ||
79 | /* Don't display the prompt if we are set quiet. */ | |
80 | static int | |
81 | cli_interpreter_display_prompt_p (void *data) | |
82 | { | |
83 | if (interp_quiet_p (NULL)) | |
84 | return 0; | |
85 | else | |
86 | return 1; | |
87 | } | |
88 | ||
71fff37b | 89 | static struct gdb_exception |
4a8f6654 AC |
90 | cli_interpreter_exec (void *data, const char *command_str) |
91 | { | |
4a8f6654 | 92 | struct ui_file *old_stream; |
71fff37b | 93 | struct gdb_exception result; |
4a8f6654 AC |
94 | |
95 | /* FIXME: cagney/2003-02-01: Need to const char *propogate | |
96 | safe_execute_command. */ | |
97 | char *str = strcpy (alloca (strlen (command_str) + 1), command_str); | |
98 | ||
ebcd3b23 MS |
99 | /* gdb_stdout could change between the time cli_uiout was |
100 | initialized and now. Since we're probably using a different | |
101 | interpreter which has a new ui_file for gdb_stdout, use that one | |
102 | instead of the default. | |
4a8f6654 | 103 | |
ebcd3b23 MS |
104 | It is important that it gets reset everytime, since the user |
105 | could set gdb to use a different interpreter. */ | |
4a8f6654 AC |
106 | old_stream = cli_out_set_stream (cli_uiout, gdb_stdout); |
107 | result = safe_execute_command (cli_uiout, str, 1); | |
108 | cli_out_set_stream (cli_uiout, old_stream); | |
109 | return result; | |
110 | } | |
111 | ||
71fff37b | 112 | static struct gdb_exception |
f9679975 | 113 | safe_execute_command (struct ui_out *command_uiout, char *command, int from_tty) |
4a8f6654 | 114 | { |
04bd08de | 115 | volatile struct gdb_exception e; |
f9679975 PA |
116 | struct ui_out *saved_uiout; |
117 | ||
118 | /* Save and override the global ``struct ui_out'' builder. */ | |
79a45e25 PA |
119 | saved_uiout = current_uiout; |
120 | current_uiout = command_uiout; | |
cdb27c12 | 121 | |
04bd08de TT |
122 | TRY_CATCH (e, RETURN_MASK_ALL) |
123 | { | |
124 | execute_command (command, from_tty); | |
125 | } | |
f9679975 PA |
126 | |
127 | /* Restore the global builder. */ | |
79a45e25 | 128 | current_uiout = saved_uiout; |
f9679975 | 129 | |
8a076db9 AC |
130 | /* FIXME: cagney/2005-01-13: This shouldn't be needed. Instead the |
131 | caller should print the exception. */ | |
9cbc821d | 132 | exception_print (gdb_stderr, e); |
8a076db9 | 133 | return e; |
4a8f6654 AC |
134 | } |
135 | ||
4801a9a3 PA |
136 | static struct ui_out * |
137 | cli_ui_out (struct interp *self) | |
138 | { | |
139 | return cli_uiout; | |
140 | } | |
4a8f6654 | 141 | |
4791eb66 | 142 | /* Standard gdb initialization hook. */ |
b9362cc7 AC |
143 | extern initialize_file_ftype _initialize_cli_interp; /* -Wmissing-prototypes */ |
144 | ||
4a8f6654 AC |
145 | void |
146 | _initialize_cli_interp (void) | |
147 | { | |
148 | static const struct interp_procs procs = { | |
149 | cli_interpreter_init, /* init_proc */ | |
150 | cli_interpreter_resume, /* resume_proc */ | |
151 | cli_interpreter_suspend, /* suspend_proc */ | |
152 | cli_interpreter_exec, /* exec_proc */ | |
4801a9a3 | 153 | cli_interpreter_display_prompt_p, /* prompt_proc_p */ |
4d09c5b4 AB |
154 | cli_ui_out, /* ui_out_proc */ |
155 | NULL, /* set_logging_proc */ | |
156 | cli_command_loop /* command_loop_proc */ | |
4a8f6654 AC |
157 | }; |
158 | struct interp *cli_interp; | |
159 | ||
4791eb66 | 160 | /* Create a default uiout builder for the CLI. */ |
4a8f6654 | 161 | cli_uiout = cli_out_new (gdb_stdout); |
4801a9a3 | 162 | cli_interp = interp_new (INTERP_CONSOLE, &procs); |
4a8f6654 AC |
163 | |
164 | interp_add (cli_interp); | |
165 | } |