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0fac0b41 DJ |
1 | /* Command-line output logging for GDB, the GNU debugger. |
2 | ||
6aba47ca | 3 | Copyright (c) 2003, 2004, 2007 Free Software Foundation, Inc. |
0fac0b41 DJ |
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 | |
9 | the Free Software Foundation; either version 2 of the License, or | |
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 | |
18 | along with this program; if not, write to the Free Software | |
10f9c213 EZ |
19 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
0fac0b41 DJ |
21 | |
22 | #include "defs.h" | |
23 | #include "gdbcmd.h" | |
24 | #include "ui-out.h" | |
25 | ||
26 | #include "gdb_string.h" | |
27 | ||
28 | /* These hold the pushed copies of the gdb output files. | |
29 | If NULL then nothing has yet been pushed. */ | |
30 | struct saved_output_files | |
31 | { | |
32 | struct ui_file *out; | |
33 | struct ui_file *err; | |
34 | struct ui_file *log; | |
35 | struct ui_file *targ; | |
36 | }; | |
37 | static struct saved_output_files saved_output; | |
38 | static char *saved_filename; | |
39 | ||
40 | static char *logging_filename; | |
920d2a44 AC |
41 | static void |
42 | show_logging_filename (struct ui_file *file, int from_tty, | |
43 | struct cmd_list_element *c, const char *value) | |
44 | { | |
45 | fprintf_filtered (file, _("The current logfile is \"%s\".\n"), | |
46 | value); | |
47 | } | |
48 | ||
49 | int logging_overwrite; | |
50 | static void | |
51 | show_logging_overwrite (struct ui_file *file, int from_tty, | |
52 | struct cmd_list_element *c, const char *value) | |
53 | { | |
54 | fprintf_filtered (file, _("\ | |
55 | Whether logging overwrites or appends to the log file is %s.\n"), | |
56 | value); | |
57 | } | |
58 | ||
59 | int logging_redirect; | |
60 | static void | |
61 | show_logging_redirect (struct ui_file *file, int from_tty, | |
62 | struct cmd_list_element *c, const char *value) | |
63 | { | |
64 | fprintf_filtered (file, _("The logging output mode is %s.\n"), value); | |
65 | } | |
0fac0b41 DJ |
66 | |
67 | /* If we've pushed output files, close them and pop them. */ | |
68 | static void | |
83a8ccca | 69 | pop_output_files (void) |
0fac0b41 DJ |
70 | { |
71 | /* Only delete one of the files -- they are all set to the same | |
72 | value. */ | |
73 | ui_file_delete (gdb_stdout); | |
74 | gdb_stdout = saved_output.out; | |
75 | gdb_stderr = saved_output.err; | |
76 | gdb_stdlog = saved_output.log; | |
77 | gdb_stdtarg = saved_output.targ; | |
78 | saved_output.out = NULL; | |
79 | saved_output.err = NULL; | |
80 | saved_output.log = NULL; | |
81 | saved_output.targ = NULL; | |
82 | ||
83 | ui_out_redirect (uiout, NULL); | |
84 | } | |
85 | ||
86 | /* This is a helper for the `set logging' command. */ | |
87 | static void | |
88 | handle_redirections (int from_tty) | |
89 | { | |
90 | struct ui_file *output; | |
91 | ||
92 | if (saved_filename != NULL) | |
93 | { | |
94 | fprintf_unfiltered (gdb_stdout, "Already logging to %s.\n", | |
95 | saved_filename); | |
96 | return; | |
97 | } | |
98 | ||
99 | output = gdb_fopen (logging_filename, logging_overwrite ? "w" : "a"); | |
100 | if (output == NULL) | |
e2e0b3e5 | 101 | perror_with_name (_("set logging")); |
0fac0b41 DJ |
102 | |
103 | /* Redirects everything to gdb_stdout while this is running. */ | |
104 | if (!logging_redirect) | |
105 | { | |
106 | output = tee_file_new (gdb_stdout, 0, output, 1); | |
107 | if (output == NULL) | |
e2e0b3e5 | 108 | perror_with_name (_("set logging")); |
0fac0b41 DJ |
109 | if (from_tty) |
110 | fprintf_unfiltered (gdb_stdout, "Copying output to %s.\n", | |
111 | logging_filename); | |
112 | } | |
113 | else if (from_tty) | |
114 | fprintf_unfiltered (gdb_stdout, "Redirecting output to %s.\n", | |
115 | logging_filename); | |
116 | ||
117 | saved_filename = xstrdup (logging_filename); | |
118 | saved_output.out = gdb_stdout; | |
119 | saved_output.err = gdb_stderr; | |
120 | saved_output.log = gdb_stdlog; | |
121 | saved_output.targ = gdb_stdtarg; | |
122 | ||
123 | gdb_stdout = output; | |
124 | gdb_stderr = output; | |
125 | gdb_stdlog = output; | |
126 | gdb_stdtarg = output; | |
127 | ||
128 | if (ui_out_redirect (uiout, gdb_stdout) < 0) | |
8a3fe4f8 | 129 | warning (_("Current output protocol does not support redirection")); |
0fac0b41 DJ |
130 | } |
131 | ||
132 | static void | |
133 | set_logging_on (char *args, int from_tty) | |
134 | { | |
135 | char *rest = args; | |
136 | if (rest && *rest) | |
137 | { | |
138 | xfree (logging_filename); | |
139 | logging_filename = xstrdup (rest); | |
140 | } | |
141 | handle_redirections (from_tty); | |
142 | } | |
143 | ||
144 | static void | |
145 | set_logging_off (char *args, int from_tty) | |
146 | { | |
147 | if (saved_filename == NULL) | |
148 | return; | |
149 | ||
150 | pop_output_files (); | |
151 | if (from_tty) | |
152 | fprintf_unfiltered (gdb_stdout, "Done logging to %s.\n", saved_filename); | |
153 | xfree (saved_filename); | |
154 | saved_filename = NULL; | |
155 | } | |
156 | ||
157 | static void | |
158 | set_logging_command (char *args, int from_tty) | |
159 | { | |
a3f17187 AC |
160 | printf_unfiltered (_("\ |
161 | \"set logging\" lets you log output to a file.\n\ | |
162 | Usage: set logging on [FILENAME]\n\ | |
163 | set logging off\n\ | |
164 | set logging file FILENAME\n\ | |
165 | set logging overwrite [on|off]\n\ | |
166 | set logging redirect [on|off]\n")); | |
0fac0b41 DJ |
167 | } |
168 | ||
169 | void | |
170 | show_logging_command (char *args, int from_tty) | |
171 | { | |
172 | if (saved_filename) | |
a3f17187 | 173 | printf_unfiltered (_("Currently logging to \"%s\".\n"), saved_filename); |
0fac0b41 DJ |
174 | if (saved_filename == NULL |
175 | || strcmp (logging_filename, saved_filename) != 0) | |
a3f17187 | 176 | printf_unfiltered (_("Future logs will be written to %s.\n"), |
0fac0b41 DJ |
177 | logging_filename); |
178 | ||
179 | if (logging_overwrite) | |
a3f17187 | 180 | printf_unfiltered (_("Logs will overwrite the log file.\n")); |
0fac0b41 | 181 | else |
a3f17187 | 182 | printf_unfiltered (_("Logs will be appended to the log file.\n")); |
0fac0b41 DJ |
183 | |
184 | if (logging_redirect) | |
a3f17187 | 185 | printf_unfiltered (_("Output will be sent only to the log file.\n")); |
0fac0b41 | 186 | else |
a3f17187 | 187 | printf_unfiltered (_("Output will be logged and displayed.\n")); |
0fac0b41 DJ |
188 | } |
189 | ||
190 | void | |
191 | _initialize_cli_logging (void) | |
192 | { | |
193 | static struct cmd_list_element *set_logging_cmdlist, *show_logging_cmdlist; | |
194 | ||
195 | ||
196 | add_prefix_cmd ("logging", class_support, set_logging_command, | |
1bedd215 | 197 | _("Set logging options"), &set_logging_cmdlist, |
0fac0b41 DJ |
198 | "set logging ", 0, &setlist); |
199 | add_prefix_cmd ("logging", class_support, show_logging_command, | |
1bedd215 | 200 | _("Show logging options"), &show_logging_cmdlist, |
0fac0b41 | 201 | "show logging ", 0, &showlist); |
7915a72c AC |
202 | add_setshow_boolean_cmd ("overwrite", class_support, &logging_overwrite, _("\ |
203 | Set whether logging overwrites or appends to the log file."), _("\ | |
204 | Show whether logging overwrites or appends to the log file."), _("\ | |
205 | If set, logging overrides the log file."), | |
2c5b56ce | 206 | NULL, |
920d2a44 | 207 | show_logging_overwrite, |
2c5b56ce | 208 | &set_logging_cmdlist, &show_logging_cmdlist); |
7915a72c AC |
209 | add_setshow_boolean_cmd ("redirect", class_support, &logging_redirect, _("\ |
210 | Set the logging output mode."), _("\ | |
211 | Show the logging output mode."), _("\ | |
3b64bf98 | 212 | If redirect is off, output will go to both the screen and the log file.\n\ |
7915a72c | 213 | If redirect is on, output will go only to the log file."), |
2c5b56ce | 214 | NULL, |
920d2a44 | 215 | show_logging_redirect, |
2c5b56ce | 216 | &set_logging_cmdlist, &show_logging_cmdlist); |
7915a72c AC |
217 | add_setshow_filename_cmd ("file", class_support, &logging_filename, _("\ |
218 | Set the current logfile."), _("\ | |
219 | Show the current logfile."), _("\ | |
220 | The logfile is used when directing GDB's output."), | |
2c5b56ce | 221 | NULL, |
920d2a44 | 222 | show_logging_filename, |
b3f42336 | 223 | &set_logging_cmdlist, &show_logging_cmdlist); |
0fac0b41 | 224 | add_cmd ("on", class_support, set_logging_on, |
1a966eab | 225 | _("Enable logging."), &set_logging_cmdlist); |
0fac0b41 | 226 | add_cmd ("off", class_support, set_logging_off, |
1a966eab | 227 | _("Disable logging."), &set_logging_cmdlist); |
0fac0b41 DJ |
228 | |
229 | logging_filename = xstrdup ("gdb.txt"); | |
230 | } |