/* Command-line output logging for GDB, the GNU debugger.
- Copyright (c) 2003, 2004, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2003-2016 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "gdbcmd.h"
#include "ui-out.h"
-
-#include "gdb_string.h"
+#include "interps.h"
/* These hold the pushed copies of the gdb output files.
If NULL then nothing has yet been pushed. */
struct ui_file *err;
struct ui_file *log;
struct ui_file *targ;
+ struct ui_file *targerr;
};
static struct saved_output_files saved_output;
static char *saved_filename;
value);
}
-int logging_overwrite;
+static int logging_overwrite;
+
+static void
+set_logging_overwrite (char *args, int from_tty, struct cmd_list_element *c)
+{
+ if (saved_filename)
+ warning (_("Currently logging to %s. Turn the logging off and on to "
+ "make the new setting effective."), saved_filename);
+}
+
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"),
+ fprintf_filtered (file,
+ _("Whether logging overwrites or "
+ "appends to the log file is %s.\n"),
value);
}
-int logging_redirect;
+/* Value as configured by the user. */
+static int logging_redirect;
+
+/* The on-disk file in use if logging is currently active together
+ with redirection turned off (and therefore using tee_file_new).
+ For active logging with redirection the on-disk file is directly in
+ GDB_STDOUT and this variable is NULL. */
+static struct ui_file *logging_no_redirect_file;
+
+static void
+set_logging_redirect (char *args, int from_tty, struct cmd_list_element *c)
+{
+ struct cleanup *cleanups;
+ struct ui_file *output, *new_logging_no_redirect_file;
+ struct ui_out *uiout = current_uiout;
+
+ if (saved_filename == NULL
+ || (logging_redirect != 0 && logging_no_redirect_file == NULL)
+ || (logging_redirect == 0 && logging_no_redirect_file != NULL))
+ return;
+
+ cleanups = make_cleanup (null_cleanup, NULL);
+
+ if (logging_redirect != 0)
+ {
+ gdb_assert (logging_no_redirect_file != NULL);
+
+ /* ui_out_redirect still has not been called for next
+ gdb_stdout. */
+ make_cleanup_ui_file_delete (gdb_stdout);
+
+ output = logging_no_redirect_file;
+ new_logging_no_redirect_file = NULL;
+
+ if (from_tty)
+ fprintf_unfiltered (saved_output.out, "Redirecting output to %s.\n",
+ logging_filename);
+ }
+ else
+ {
+ gdb_assert (logging_no_redirect_file == NULL);
+ output = tee_file_new (saved_output.out, 0, gdb_stdout, 0);
+ if (output == NULL)
+ perror_with_name (_("set logging"));
+ new_logging_no_redirect_file = gdb_stdout;
+
+ if (from_tty)
+ fprintf_unfiltered (saved_output.out, "Copying output to %s.\n",
+ logging_filename);
+ }
+
+ /* Give the current interpreter a chance to do anything special that
+ it might need for logging, such as updating other channels. */
+ if (current_interp_set_logging (1, output, NULL) == 0)
+ {
+ gdb_stdout = output;
+ gdb_stdlog = output;
+ gdb_stderr = output;
+ gdb_stdtarg = output;
+ gdb_stdtargerr = output;
+ }
+
+ logging_no_redirect_file = new_logging_no_redirect_file;
+
+ /* There is a former output pushed on the ui_out_redirect stack. We
+ want to replace it by OUTPUT so we must pop the former value
+ first. We should either do both the pop and push or to do
+ neither of it. At least do not try to push OUTPUT if the pop
+ already failed. */
+
+ if (uiout->redirect (NULL) < 0
+ || uiout->redirect (output) < 0)
+ warning (_("Current output protocol does not support redirection"));
+
+ do_cleanups (cleanups);
+}
+
static void
show_logging_redirect (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
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;
+ if (logging_no_redirect_file)
+ {
+ ui_file_delete (logging_no_redirect_file);
+ logging_no_redirect_file = NULL;
+ }
+
+ if (current_interp_set_logging (0, NULL, NULL) == 0)
+ {
+ /* 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;
+ gdb_stdtargerr = saved_output.targerr;
+ }
+
saved_output.out = NULL;
saved_output.err = NULL;
saved_output.log = NULL;
saved_output.targ = NULL;
+ saved_output.targerr = NULL;
- ui_out_redirect (uiout, NULL);
+ /* 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)
{
+ struct cleanup *cleanups;
struct ui_file *output;
+ struct ui_file *no_redirect_file = NULL;
if (saved_filename != NULL)
{
output = gdb_fopen (logging_filename, logging_overwrite ? "w" : "a");
if (output == NULL)
perror_with_name (_("set logging"));
+ cleanups = make_cleanup_ui_file_delete (output);
/* Redirects everything to gdb_stdout while this is running. */
if (!logging_redirect)
{
- output = tee_file_new (gdb_stdout, 0, output, 1);
+ no_redirect_file = output;
+
+ output = tee_file_new (gdb_stdout, 0, no_redirect_file, 0);
if (output == NULL)
perror_with_name (_("set logging"));
+ make_cleanup_ui_file_delete (output);
if (from_tty)
fprintf_unfiltered (gdb_stdout, "Copying output to %s.\n",
logging_filename);
+ logging_no_redirect_file = no_redirect_file;
}
- else if (from_tty)
- fprintf_unfiltered (gdb_stdout, "Redirecting output to %s.\n",
- logging_filename);
+ else
+ {
+ gdb_assert (logging_no_redirect_file == NULL);
+
+ if (from_tty)
+ fprintf_unfiltered (gdb_stdout, "Redirecting output to %s.\n",
+ logging_filename);
+ }
+
+ discard_cleanups (cleanups);
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;
+ saved_output.targerr = gdb_stdtargerr;
- gdb_stdout = output;
- gdb_stderr = output;
- gdb_stdlog = output;
- gdb_stdtarg = output;
+ /* Let the interpreter do anything it needs. */
+ if (current_interp_set_logging (1, output, no_redirect_file) == 0)
+ {
+ gdb_stdout = output;
+ gdb_stdlog = output;
+ gdb_stderr = output;
+ gdb_stdtarg = output;
+ gdb_stdtargerr = output;
+ }
- if (ui_out_redirect (uiout, gdb_stdout) < 0)
- warning (_("Current output protocol does not support redirection"));
+ /* Don't do the redirect for MI, it confuses MI's ui-out scheme. */
+ if (!current_uiout->is_mi_like_p ())
+ {
+ if (current_uiout->redirect (output) < 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);
static void
set_logging_command (char *args, int from_tty)
{
- printf_unfiltered (_("\
-\"set logging\" lets you log output to a file.\n\
-Usage: set logging on [FILENAME]\n\
- set logging off\n\
- set logging file FILENAME\n\
- set logging overwrite [on|off]\n\
- set logging redirect [on|off]\n"));
+ printf_unfiltered (_("\"set logging\" lets you log output to a file.\n"
+ "Usage: set logging on [FILENAME]\n"
+ " set logging off\n"
+ " set logging file FILENAME\n"
+ " set logging overwrite [on|off]\n"
+ " set logging redirect [on|off]\n"));
}
-void
+static void
show_logging_command (char *args, int from_tty)
{
if (saved_filename)
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"));
+ if (saved_filename)
+ {
+ if (logging_redirect)
+ printf_unfiltered (_("Output is being sent only to the log file.\n"));
+ else
+ printf_unfiltered (_("Output is being logged and displayed.\n"));
+ }
else
- printf_unfiltered (_("Output will be logged and displayed.\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"));
+ }
}
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_cli_logging;
+
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);
Set whether logging overwrites or appends to the log file."), _("\
Show whether logging overwrites or appends to the log file."), _("\
If set, logging overrides the log file."),
- NULL,
+ set_logging_overwrite,
show_logging_overwrite,
&set_logging_cmdlist, &show_logging_cmdlist);
add_setshow_boolean_cmd ("redirect", class_support, &logging_redirect, _("\
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."),
- NULL,
+ set_logging_redirect,
show_logging_redirect,
&set_logging_cmdlist, &show_logging_cmdlist);
add_setshow_filename_cmd ("file", class_support, &logging_filename, _("\
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