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0fac0b41 DJ |
1 | /* Command-line output logging for GDB, the GNU debugger. |
2 | ||
3 | Copyright 2003 | |
4 | Free Software Foundation, Inc. | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
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 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
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. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
22 | ||
23 | #include "defs.h" | |
24 | #include "gdbcmd.h" | |
25 | #include "ui-out.h" | |
26 | ||
27 | #include "gdb_string.h" | |
28 | ||
29 | /* These hold the pushed copies of the gdb output files. | |
30 | If NULL then nothing has yet been pushed. */ | |
31 | struct saved_output_files | |
32 | { | |
33 | struct ui_file *out; | |
34 | struct ui_file *err; | |
35 | struct ui_file *log; | |
36 | struct ui_file *targ; | |
37 | }; | |
38 | static struct saved_output_files saved_output; | |
39 | static char *saved_filename; | |
40 | ||
41 | static char *logging_filename; | |
42 | int logging_overwrite, logging_redirect; | |
43 | ||
44 | /* If we've pushed output files, close them and pop them. */ | |
45 | static void | |
83a8ccca | 46 | pop_output_files (void) |
0fac0b41 DJ |
47 | { |
48 | /* Only delete one of the files -- they are all set to the same | |
49 | value. */ | |
50 | ui_file_delete (gdb_stdout); | |
51 | gdb_stdout = saved_output.out; | |
52 | gdb_stderr = saved_output.err; | |
53 | gdb_stdlog = saved_output.log; | |
54 | gdb_stdtarg = saved_output.targ; | |
55 | saved_output.out = NULL; | |
56 | saved_output.err = NULL; | |
57 | saved_output.log = NULL; | |
58 | saved_output.targ = NULL; | |
59 | ||
60 | ui_out_redirect (uiout, NULL); | |
61 | } | |
62 | ||
63 | /* This is a helper for the `set logging' command. */ | |
64 | static void | |
65 | handle_redirections (int from_tty) | |
66 | { | |
67 | struct ui_file *output; | |
68 | ||
69 | if (saved_filename != NULL) | |
70 | { | |
71 | fprintf_unfiltered (gdb_stdout, "Already logging to %s.\n", | |
72 | saved_filename); | |
73 | return; | |
74 | } | |
75 | ||
76 | output = gdb_fopen (logging_filename, logging_overwrite ? "w" : "a"); | |
77 | if (output == NULL) | |
78 | perror_with_name ("set logging"); | |
79 | ||
80 | /* Redirects everything to gdb_stdout while this is running. */ | |
81 | if (!logging_redirect) | |
82 | { | |
83 | output = tee_file_new (gdb_stdout, 0, output, 1); | |
84 | if (output == NULL) | |
85 | perror_with_name ("set logging"); | |
86 | if (from_tty) | |
87 | fprintf_unfiltered (gdb_stdout, "Copying output to %s.\n", | |
88 | logging_filename); | |
89 | } | |
90 | else if (from_tty) | |
91 | fprintf_unfiltered (gdb_stdout, "Redirecting output to %s.\n", | |
92 | logging_filename); | |
93 | ||
94 | saved_filename = xstrdup (logging_filename); | |
95 | saved_output.out = gdb_stdout; | |
96 | saved_output.err = gdb_stderr; | |
97 | saved_output.log = gdb_stdlog; | |
98 | saved_output.targ = gdb_stdtarg; | |
99 | ||
100 | gdb_stdout = output; | |
101 | gdb_stderr = output; | |
102 | gdb_stdlog = output; | |
103 | gdb_stdtarg = output; | |
104 | ||
105 | if (ui_out_redirect (uiout, gdb_stdout) < 0) | |
106 | warning ("Current output protocol does not support redirection"); | |
107 | } | |
108 | ||
109 | static void | |
110 | set_logging_on (char *args, int from_tty) | |
111 | { | |
112 | char *rest = args; | |
113 | if (rest && *rest) | |
114 | { | |
115 | xfree (logging_filename); | |
116 | logging_filename = xstrdup (rest); | |
117 | } | |
118 | handle_redirections (from_tty); | |
119 | } | |
120 | ||
121 | static void | |
122 | set_logging_off (char *args, int from_tty) | |
123 | { | |
124 | if (saved_filename == NULL) | |
125 | return; | |
126 | ||
127 | pop_output_files (); | |
128 | if (from_tty) | |
129 | fprintf_unfiltered (gdb_stdout, "Done logging to %s.\n", saved_filename); | |
130 | xfree (saved_filename); | |
131 | saved_filename = NULL; | |
132 | } | |
133 | ||
134 | static void | |
135 | set_logging_command (char *args, int from_tty) | |
136 | { | |
137 | printf_unfiltered ("\"set logging\" lets you log output to a file.\n"); | |
138 | printf_unfiltered ("Usage: set logging on [FILENAME]\n"); | |
139 | printf_unfiltered (" set logging off\n"); | |
140 | printf_unfiltered (" set logging file FILENAME\n"); | |
141 | printf_unfiltered (" set logging overwrite [on|off]\n"); | |
142 | printf_unfiltered (" set logging redirect [on|off]\n"); | |
143 | } | |
144 | ||
145 | void | |
146 | show_logging_command (char *args, int from_tty) | |
147 | { | |
148 | if (saved_filename) | |
149 | printf_unfiltered ("Currently logging to \"%s\".\n", saved_filename); | |
150 | if (saved_filename == NULL | |
151 | || strcmp (logging_filename, saved_filename) != 0) | |
152 | printf_unfiltered ("Future logs will be written to %s.\n", | |
153 | logging_filename); | |
154 | ||
155 | if (logging_overwrite) | |
156 | printf_unfiltered ("Logs will overwrite the log file.\n"); | |
157 | else | |
158 | printf_unfiltered ("Logs will be appended to the log file.\n"); | |
159 | ||
160 | if (logging_redirect) | |
161 | printf_unfiltered ("Output will be sent only to the log file.\n"); | |
162 | else | |
163 | printf_unfiltered ("Output will be logged and displayed.\n"); | |
164 | } | |
165 | ||
166 | void | |
167 | _initialize_cli_logging (void) | |
168 | { | |
169 | static struct cmd_list_element *set_logging_cmdlist, *show_logging_cmdlist; | |
170 | ||
171 | ||
172 | add_prefix_cmd ("logging", class_support, set_logging_command, | |
173 | "Set logging options", &set_logging_cmdlist, | |
174 | "set logging ", 0, &setlist); | |
175 | add_prefix_cmd ("logging", class_support, show_logging_command, | |
176 | "Show logging options", &show_logging_cmdlist, | |
177 | "show logging ", 0, &showlist); | |
178 | add_setshow_boolean_cmd ("overwrite", class_support, &logging_overwrite, | |
179 | "Set whether logging overwrites or appends " | |
180 | "to the log file.\n", | |
181 | "Show whether logging overwrites or appends " | |
182 | "to the log file.\n", | |
183 | NULL, NULL, &set_logging_cmdlist, &show_logging_cmdlist); | |
184 | add_setshow_boolean_cmd ("redirect", class_support, &logging_redirect, | |
185 | "Set the logging output mode.\n" | |
186 | "If redirect is off, output will go to both the " | |
187 | "screen and the log file.\n" | |
188 | "If redirect is on, output will go only to the log " | |
189 | "file.", | |
190 | "Show the logging output mode.\n" | |
191 | "If redirect is off, output will go to both the " | |
192 | "screen and the log file.\n" | |
193 | "If redirect is on, output will go only to the log " | |
194 | "file.", | |
195 | NULL, NULL, &set_logging_cmdlist, &show_logging_cmdlist); | |
196 | add_setshow_cmd ("file", class_support, var_filename, &logging_filename, | |
197 | "Set the current logfile.", "Show the current logfile.", | |
198 | NULL, NULL, &set_logging_cmdlist, &show_logging_cmdlist); | |
199 | add_cmd ("on", class_support, set_logging_on, | |
200 | "Enable logging.", &set_logging_cmdlist); | |
201 | add_cmd ("off", class_support, set_logging_off, | |
202 | "Disable logging.", &set_logging_cmdlist); | |
203 | ||
204 | logging_filename = xstrdup ("gdb.txt"); | |
205 | } |