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/* Command-line output logging for GDB, the GNU debugger.
Copyright (C) 2003-2022 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 3 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, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdbcmd.h"
#include "ui-out.h"
#include "interps.h"
#include "cli/cli-style.h"
#include "cli/cli-decode.h"
static std::string saved_filename;
static std::string logging_filename = "gdb.txt";
static void
show_logging_filename (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
fprintf_filtered (file, _("The current logfile is \"%ps\".\n"),
styled_string (file_name_style.style (), value));
}
static bool logging_overwrite;
static void
maybe_warn_already_logging ()
{
if (!saved_filename.empty ())
warning (_("Currently logging to %s. Turn the logging off and on to "
"make the new setting effective."), saved_filename.c_str ());
}
static void
set_logging_overwrite (const char *args,
int from_tty, struct cmd_list_element *c)
{
maybe_warn_already_logging ();
}
static void
show_logging_overwrite (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
fprintf_filtered (file,
_("Whether logging overwrites or "
"appends to the log file is %s.\n"),
value);
}
/* Value as configured by the user. */
static bool logging_redirect;
static bool debug_redirect;
static void
set_logging_redirect (const char *args,
int from_tty, struct cmd_list_element *c)
{
maybe_warn_already_logging ();
}
static void
show_logging_redirect (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
fprintf_filtered (file, _("The logging output mode is %s.\n"), value);
}
/* If we've pushed output files, close them and pop them. */
static void
pop_output_files (void)
{
current_interp_set_logging (NULL, false, false);
/* Stay consistent with handle_redirections. */
if (!current_uiout->is_mi_like_p ())
current_uiout->redirect (NULL);
}
/* This is a helper for the `set logging' command. */
static void
handle_redirections (int from_tty)
{
if (!saved_filename.empty ())
{
fprintf_unfiltered (gdb_stdout, "Already logging to %s.\n",
saved_filename.c_str ());
return;
}
stdio_file_up log (new no_terminal_escape_file ());
if (!log->open (logging_filename.c_str (), logging_overwrite ? "w" : "a"))
perror_with_name (_("set logging"));
/* Redirects everything to gdb_stdout while this is running. */
if (from_tty)
{
if (!logging_redirect)
fprintf_unfiltered (gdb_stdout, "Copying output to %s.\n",
logging_filename.c_str ());
else
fprintf_unfiltered (gdb_stdout, "Redirecting output to %s.\n",
logging_filename.c_str ());
if (!debug_redirect)
fprintf_unfiltered (gdb_stdout, "Copying debug output to %s.\n",
logging_filename.c_str ());
else
fprintf_unfiltered (gdb_stdout, "Redirecting debug output to %s.\n",
logging_filename.c_str ());
}
saved_filename = logging_filename;
/* Let the interpreter do anything it needs. */
current_interp_set_logging (std::move (log), logging_redirect,
debug_redirect);
/* Redirect the current ui-out object's output to the log. Use
gdb_stdout, not log, since the interpreter may have created a tee
that wraps the log. Don't do the redirect for MI, it confuses
MI's ui-out scheme. Note that we may get here with MI as current
interpreter, but with the current ui_out as a CLI ui_out, with
'-interpreter-exec console "set logging on"'. */
if (!current_uiout->is_mi_like_p ())
current_uiout->redirect (gdb_stdout);
}
static void
set_logging_on (const char *args, int from_tty)
{
const char *rest = args;
if (rest && *rest)
logging_filename = rest;
handle_redirections (from_tty);
}
static void
set_logging_off (const char *args, int from_tty)
{
if (saved_filename.empty ())
return;
pop_output_files ();
if (from_tty)
fprintf_unfiltered (gdb_stdout, "Done logging to %s.\n",
saved_filename.c_str ());
saved_filename.clear ();
}
static bool logging_enabled;
static void
set_logging_enabled (const char *args,
int from_tty, struct cmd_list_element *c)
{
if (logging_enabled)
set_logging_on (args, from_tty);
else
set_logging_off (args, from_tty);
}
static void
show_logging_enabled (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
if (logging_enabled)
fprintf_filtered (file, _("Logging is enabled.\n"));
else
fprintf_filtered (file, _("Logging is disabled.\n"));
}
void _initialize_cli_logging ();
void
_initialize_cli_logging ()
{
static struct cmd_list_element *set_logging_cmdlist, *show_logging_cmdlist;
/* Set/show logging. */
add_setshow_prefix_cmd ("logging", class_support,
_("Set logging options."),
_("Show logging options."),
&set_logging_cmdlist, &show_logging_cmdlist,
&setlist, &showlist);
/* Set/show logging overwrite. */
add_setshow_boolean_cmd ("overwrite", class_support, &logging_overwrite, _("\
Set whether logging overwrites or appends to the log file."), _("\
Show whether logging overwrites or appends to the log file."), _("\
If set, logging overwrites the log file."),
set_logging_overwrite,
show_logging_overwrite,
&set_logging_cmdlist, &show_logging_cmdlist);
/* Set/show logging redirect. */
add_setshow_boolean_cmd ("redirect", class_support, &logging_redirect, _("\
Set the logging output mode."), _("\
Show the logging output mode."), _("\
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."),
set_logging_redirect,
show_logging_redirect,
&set_logging_cmdlist, &show_logging_cmdlist);
/* Set/show logging debugredirect. */
add_setshow_boolean_cmd ("debugredirect", class_support,
&debug_redirect, _("\
Set the logging debug output mode."), _("\
Show the logging debug output mode."), _("\
If debug redirect is off, debug will go to both the screen and the log file.\n\
If debug redirect is on, debug will go only to the log file."),
set_logging_redirect,
show_logging_redirect,
&set_logging_cmdlist, &show_logging_cmdlist);
/* Set/show logging file. */
add_setshow_filename_cmd ("file", class_support, &logging_filename, _("\
Set the current logfile."), _("\
Show the current logfile."), _("\
The logfile is used when directing GDB's output."),
NULL,
show_logging_filename,
&set_logging_cmdlist, &show_logging_cmdlist);
/* Set/show logging enabled. */
set_show_commands setshow_logging_enabled_cmds
= add_setshow_boolean_cmd ("enabled", class_support, &logging_enabled,
_("Enable logging."),
_("Show whether logging is enabled."),
_("When on, enable logging."),
set_logging_enabled,
show_logging_enabled,
&set_logging_cmdlist, &show_logging_cmdlist);
/* Set logging on, deprecated alias. */
cmd_list_element *set_logging_on_cmd
= add_alias_cmd ("on", setshow_logging_enabled_cmds.set, class_support,
false, &set_logging_cmdlist);
deprecate_cmd (set_logging_on_cmd, "set logging enabled on");
set_logging_on_cmd->default_args = "on";
/* Set logging off, deprecated alias. */
cmd_list_element *set_logging_off_cmd
= add_alias_cmd ("off", setshow_logging_enabled_cmds.set, class_support,
false, &set_logging_cmdlist);
deprecate_cmd (set_logging_off_cmd, "set logging enabled off");
set_logging_off_cmd->default_args = "off";
}
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