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Diffstat (limited to 'gdb/cli/cli-logging.c')
| -rw-r--r-- | gdb/cli/cli-logging.c | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/gdb/cli/cli-logging.c b/gdb/cli/cli-logging.c new file mode 100644 index 00000000000..67ec672931b --- /dev/null +++ b/gdb/cli/cli-logging.c @@ -0,0 +1,205 @@ +/* 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 () +{ + /* 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"); +} |