| /* Command-line output logging for GDB, the GNU debugger. |
| |
| Copyright 2003 |
| Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include "defs.h" |
| #include "gdbcmd.h" |
| #include "ui-out.h" |
| |
| #include "gdb_string.h" |
| |
| /* These hold the pushed copies of the gdb output files. |
| If NULL then nothing has yet been pushed. */ |
| struct saved_output_files |
| { |
| struct ui_file *out; |
| struct ui_file *err; |
| struct ui_file *log; |
| struct ui_file *targ; |
| }; |
| static struct saved_output_files saved_output; |
| static char *saved_filename; |
| |
| static char *logging_filename; |
| int logging_overwrite, logging_redirect; |
| |
| /* If we've pushed output files, close them and pop them. */ |
| static void |
| pop_output_files (void) |
| { |
| /* Only delete one of the files -- they are all set to the same |
| value. */ |
| ui_file_delete (gdb_stdout); |
| gdb_stdout = saved_output.out; |
| gdb_stderr = saved_output.err; |
| gdb_stdlog = saved_output.log; |
| gdb_stdtarg = saved_output.targ; |
| saved_output.out = NULL; |
| saved_output.err = NULL; |
| saved_output.log = NULL; |
| saved_output.targ = NULL; |
| |
| ui_out_redirect (uiout, NULL); |
| } |
| |
| /* This is a helper for the `set logging' command. */ |
| static void |
| handle_redirections (int from_tty) |
| { |
| struct ui_file *output; |
| |
| if (saved_filename != NULL) |
| { |
| fprintf_unfiltered (gdb_stdout, "Already logging to %s.\n", |
| saved_filename); |
| return; |
| } |
| |
| output = gdb_fopen (logging_filename, logging_overwrite ? "w" : "a"); |
| if (output == NULL) |
| perror_with_name ("set logging"); |
| |
| /* Redirects everything to gdb_stdout while this is running. */ |
| if (!logging_redirect) |
| { |
| output = tee_file_new (gdb_stdout, 0, output, 1); |
| if (output == NULL) |
| perror_with_name ("set logging"); |
| if (from_tty) |
| fprintf_unfiltered (gdb_stdout, "Copying output to %s.\n", |
| logging_filename); |
| } |
| else if (from_tty) |
| fprintf_unfiltered (gdb_stdout, "Redirecting output to %s.\n", |
| logging_filename); |
| |
| saved_filename = xstrdup (logging_filename); |
| saved_output.out = gdb_stdout; |
| saved_output.err = gdb_stderr; |
| saved_output.log = gdb_stdlog; |
| saved_output.targ = gdb_stdtarg; |
| |
| gdb_stdout = output; |
| gdb_stderr = output; |
| gdb_stdlog = output; |
| gdb_stdtarg = output; |
| |
| if (ui_out_redirect (uiout, gdb_stdout) < 0) |
| warning ("Current output protocol does not support redirection"); |
| } |
| |
| static void |
| set_logging_on (char *args, int from_tty) |
| { |
| char *rest = args; |
| if (rest && *rest) |
| { |
| xfree (logging_filename); |
| logging_filename = xstrdup (rest); |
| } |
| handle_redirections (from_tty); |
| } |
| |
| static void |
| set_logging_off (char *args, int from_tty) |
| { |
| if (saved_filename == NULL) |
| return; |
| |
| pop_output_files (); |
| if (from_tty) |
| fprintf_unfiltered (gdb_stdout, "Done logging to %s.\n", saved_filename); |
| xfree (saved_filename); |
| saved_filename = NULL; |
| } |
| |
| static void |
| set_logging_command (char *args, int from_tty) |
| { |
| printf_unfiltered ("\"set logging\" lets you log output to a file.\n"); |
| printf_unfiltered ("Usage: set logging on [FILENAME]\n"); |
| printf_unfiltered (" set logging off\n"); |
| printf_unfiltered (" set logging file FILENAME\n"); |
| printf_unfiltered (" set logging overwrite [on|off]\n"); |
| printf_unfiltered (" set logging redirect [on|off]\n"); |
| } |
| |
| void |
| show_logging_command (char *args, int from_tty) |
| { |
| if (saved_filename) |
| printf_unfiltered ("Currently logging to \"%s\".\n", saved_filename); |
| if (saved_filename == NULL |
| || strcmp (logging_filename, saved_filename) != 0) |
| printf_unfiltered ("Future logs will be written to %s.\n", |
| logging_filename); |
| |
| if (logging_overwrite) |
| printf_unfiltered ("Logs will overwrite the log file.\n"); |
| else |
| printf_unfiltered ("Logs will be appended to the log file.\n"); |
| |
| if (logging_redirect) |
| printf_unfiltered ("Output will be sent only to the log file.\n"); |
| else |
| printf_unfiltered ("Output will be logged and displayed.\n"); |
| } |
| |
| void |
| _initialize_cli_logging (void) |
| { |
| static struct cmd_list_element *set_logging_cmdlist, *show_logging_cmdlist; |
| |
| |
| add_prefix_cmd ("logging", class_support, set_logging_command, |
| "Set logging options", &set_logging_cmdlist, |
| "set logging ", 0, &setlist); |
| add_prefix_cmd ("logging", class_support, show_logging_command, |
| "Show logging options", &show_logging_cmdlist, |
| "show logging ", 0, &showlist); |
| add_setshow_boolean_cmd ("overwrite", class_support, &logging_overwrite, |
| "Set whether logging overwrites or appends " |
| "to the log file.\n", |
| "Show whether logging overwrites or appends " |
| "to the log file.\n", |
| NULL, NULL, &set_logging_cmdlist, &show_logging_cmdlist); |
| add_setshow_boolean_cmd ("redirect", class_support, &logging_redirect, |
| "Set the logging output mode.\n" |
| "If redirect is off, output will go to both the " |
| "screen and the log file.\n" |
| "If redirect is on, output will go only to the log " |
| "file.", |
| "Show the logging output mode.\n" |
| "If redirect is off, output will go to both the " |
| "screen and the log file.\n" |
| "If redirect is on, output will go only to the log " |
| "file.", |
| NULL, NULL, &set_logging_cmdlist, &show_logging_cmdlist); |
| add_setshow_cmd ("file", class_support, var_filename, &logging_filename, |
| "Set the current logfile.", "Show the current logfile.", |
| NULL, NULL, &set_logging_cmdlist, &show_logging_cmdlist); |
| add_cmd ("on", class_support, set_logging_on, |
| "Enable logging.", &set_logging_cmdlist); |
| add_cmd ("off", class_support, set_logging_off, |
| "Disable logging.", &set_logging_cmdlist); |
| |
| logging_filename = xstrdup ("gdb.txt"); |
| } |