--- /dev/null
+/* 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");
+}
OSDN Git Service
