/* Low level interface to ptrace, for GDB when running under Unix.
- Copyright 1986-87, 1989, 1991-92, 1995, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
+ 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+ Free Software Foundation, Inc.
This file is part of GDB.
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. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#include "defs.h"
#include "frame.h"
#include "gdb_string.h"
#include <signal.h>
#include <fcntl.h>
-#ifdef HAVE_SYS_SELECT_H
-#include <sys/select.h>
-#endif
-
-#ifdef HAVE_TERMIOS
-#define PROCESS_GROUP_TYPE pid_t
-#endif
+#include "gdb_select.h"
-#ifdef HAVE_TERMIO
-#define PROCESS_GROUP_TYPE int
-#endif
-
-#ifdef HAVE_SGTTY
-#ifdef SHORT_PGRP
-/* This is only used for the ultra. Does it have pid_t? */
-#define PROCESS_GROUP_TYPE short
-#else
-#define PROCESS_GROUP_TYPE int
-#endif
-#endif /* sgtty */
+#include "inflow.h"
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
+#ifndef O_NOCTTY
+#define O_NOCTTY 0
+#endif
+
#if defined (SIGIO) && defined (FASYNC) && defined (FD_SET) && defined (F_SETOWN)
static void handle_sigio (int);
#endif
\f
/* Record terminal status separately for debugger and inferior. */
-static serial_t stdin_serial;
+static struct serial *stdin_serial;
/* TTY state for the inferior. We save it whenever the inferior stops, and
restore it when it resumes. */
/* The name of the tty (from the `tty' command) that we gave to the inferior
when it was last started. */
-static char *inferior_thisrun_terminal;
+static const char *inferior_thisrun_terminal;
/* Nonzero if our terminal settings are in effect. Zero if the
inferior's settings are in effect. Ignored if !gdb_has_a_terminal
case no:
return 0;
case have_not_checked:
- /* Get all the current tty settings (including whether we have a tty at
- all!). Can't do this in _initialize_inflow because SERIAL_FDOPEN
- won't work until the serial_ops_list is initialized. */
+ /* Get all the current tty settings (including whether we have a
+ tty at all!). Can't do this in _initialize_inflow because
+ serial_fdopen() won't work until the serial_ops_list is
+ initialized. */
#ifdef F_GETFL
tflags_ours = fcntl (0, F_GETFL, 0);
#endif
gdb_has_a_terminal_flag = no;
- stdin_serial = SERIAL_FDOPEN (0);
if (stdin_serial != NULL)
{
- our_ttystate = SERIAL_GET_TTY_STATE (stdin_serial);
+ our_ttystate = serial_get_tty_state (stdin_serial);
if (our_ttystate != NULL)
{
#define OOPSY(what) \
if (result == -1) \
fprintf_unfiltered(gdb_stderr, "[%s failed in terminal_inferior: %s]\n", \
- what, strerror (errno))
+ what, safe_strerror (errno))
static void terminal_ours_1 (int);
{
if (gdb_has_a_terminal ())
{
- /* We could just as well copy our_ttystate (if we felt like adding
- a new function SERIAL_COPY_TTY_STATE). */
+ /* We could just as well copy our_ttystate (if we felt like
+ adding a new function serial_copy_tty_state()). */
if (inferior_ttystate)
xfree (inferior_ttystate);
- inferior_ttystate = SERIAL_GET_TTY_STATE (stdin_serial);
+ inferior_ttystate = serial_get_tty_state (stdin_serial);
#ifdef PROCESS_GROUP_TYPE
inferior_process_group = pgrp;
}
}
+/* Save the terminal settings again. This is necessary for the TUI
+ when it switches to TUI or non-TUI mode; curses changes the terminal
+ and gdb must be able to restore it correctly. */
+
+void
+terminal_save_ours (void)
+{
+ if (gdb_has_a_terminal ())
+ {
+ /* We could just as well copy our_ttystate (if we felt like adding
+ a new function serial_copy_tty_state). */
+ if (our_ttystate)
+ xfree (our_ttystate);
+ our_ttystate = serial_get_tty_state (stdin_serial);
+ }
+}
+
void
terminal_init_inferior (void)
{
debugging target with a version of target_terminal_init_inferior which
passes in the process group to a generic routine which does all the work
(and the non-threaded child_terminal_init_inferior can just pass in
- inferior_pid to the same routine). */
+ inferior_ptid to the same routine). */
/* We assume INFERIOR_PID is also the child's process group. */
- terminal_init_inferior_with_pgrp (PIDGET (inferior_pid));
+ terminal_init_inferior_with_pgrp (PIDGET (inferior_ptid));
#endif /* PROCESS_GROUP_TYPE */
}
terminal_inferior (void)
{
if (gdb_has_a_terminal () && terminal_is_ours
+ && inferior_ttystate != NULL
&& inferior_thisrun_terminal == 0)
{
int result;
/* Because we were careful to not change in or out of raw mode in
terminal_ours, we will not change in our out of raw mode with
this call, so we don't flush any input. */
- result = SERIAL_SET_TTY_STATE (stdin_serial, inferior_ttystate);
+ result = serial_set_tty_state (stdin_serial, inferior_ttystate);
OOPSY ("setting tty state");
if (!job_control)
if (inferior_ttystate)
xfree (inferior_ttystate);
- inferior_ttystate = SERIAL_GET_TTY_STATE (stdin_serial);
+ inferior_ttystate = serial_get_tty_state (stdin_serial);
#ifdef HAVE_TERMIOS
inferior_process_group = tcgetpgrp (0);
#endif
though, since readline will deal with raw mode when/if it needs to.
*/
- SERIAL_NOFLUSH_SET_TTY_STATE (stdin_serial, our_ttystate,
+ serial_noflush_set_tty_state (stdin_serial, our_ttystate,
inferior_ttystate);
if (job_control)
such situations as well. */
if (result == -1)
fprintf_unfiltered (gdb_stderr, "[tcsetpgrp failed in terminal_ours: %s]\n",
- strerror (errno));
+ safe_strerror (errno));
#endif
#endif /* termios */
}
}
-/* ARGSUSED */
void
term_info (char *arg, int from_tty)
{
target_terminal_info (arg, from_tty);
}
-/* ARGSUSED */
void
child_terminal_info (char *args, int from_tty)
{
if (!gdb_has_a_terminal ())
{
- printf_filtered ("This GDB does not control a terminal.\n");
+ printf_filtered (_("This GDB does not control a terminal.\n"));
return;
}
- printf_filtered ("Inferior's terminal status (currently saved by GDB):\n");
+ printf_filtered (_("Inferior's terminal status (currently saved by GDB):\n"));
/* First the fcntl flags. */
{
(int) inferior_process_group);
#endif
- SERIAL_PRINT_TTY_STATE (stdin_serial, inferior_ttystate, gdb_stdout);
+ serial_print_tty_state (stdin_serial, inferior_ttystate, gdb_stdout);
}
\f
/* NEW_TTY_PREFORK is called before forking a new child process,
the terminal specified in the NEW_TTY_PREFORK call. */
void
-new_tty_prefork (char *ttyname)
+new_tty_prefork (const char *ttyname)
{
/* Save the name for later, for determining whether we and the child
are sharing a tty. */
void
new_tty (void)
{
- register int tty;
+ int tty;
if (inferior_thisrun_terminal == 0)
return;
#endif
/* Now open the specified new terminal. */
-
-#ifdef USE_O_NOCTTY
tty = open (inferior_thisrun_terminal, O_RDWR | O_NOCTTY);
-#else
- tty = open (inferior_thisrun_terminal, O_RDWR);
-#endif
if (tty == -1)
{
print_sys_errmsg (inferior_thisrun_terminal, errno);
\f
/* Kill the inferior process. Make us have no inferior. */
-/* ARGSUSED */
static void
kill_command (char *arg, int from_tty)
{
- /* FIXME: This should not really be inferior_pid (or target_has_execution).
+ /* FIXME: This should not really be inferior_ptid (or target_has_execution).
It should be a distinct flag that indicates that a target is active, cuz
some targets don't have processes! */
- if (inferior_pid == 0)
- error ("The program is not being run.");
+ if (ptid_equal (inferior_ptid, null_ptid))
+ error (_("The program is not being run."));
if (!query ("Kill the program being debugged? "))
- error ("Not confirmed.");
+ error (_("Not confirmed."));
target_kill ();
init_thread_list (); /* Destroy thread info */
print the state we are left in. */
if (target_has_stack)
{
- printf_filtered ("In %s,\n", target_longname);
- if (selected_frame == NULL)
- fputs_filtered ("No selected stack frame.\n", gdb_stdout);
- else
- print_stack_frame (selected_frame, selected_frame_level, 1);
+ printf_filtered (_("In %s,\n"), target_longname);
+ print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC);
}
+ bfd_cache_close_all ();
}
\f
/* Call set_sigint_trap when you need to pass a signal on to an attached
process when handling SIGINT */
-/* ARGSUSED */
static void
pass_signal (int signo)
{
#ifndef _WIN32
- kill (PIDGET (inferior_pid), SIGINT);
+ kill (PIDGET (inferior_ptid), SIGINT);
#endif
}
FD_ZERO (&readfds);
FD_SET (target_activity_fd, &readfds);
- numfds = select (target_activity_fd + 1, &readfds, NULL, NULL, NULL);
+ numfds = gdb_select (target_activity_fd + 1, &readfds, NULL, NULL, NULL);
if (numfds >= 0 && FD_ISSET (target_activity_fd, &readfds))
{
#ifndef _WIN32
if ((*target_activity_function) ())
- kill (inferior_pid, SIGINT);
+ kill (PIDGET (inferior_ptid), SIGINT);
#endif
}
}
set_sigio_trap (void)
{
if (target_activity_function)
- abort ();
+ internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
}
void
clear_sigio_trap (void)
{
if (target_activity_function)
- abort ();
+ internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
}
#endif /* No SIGIO. */
\f
if (job_control)
{
-#if defined (NEED_POSIX_SETPGID) || (defined (HAVE_TERMIOS) && defined (HAVE_SETPGID))
- /* setpgid (0, 0) is supposed to work and mean the same thing as
- this, but on Ultrix 4.2A it fails with EPERM (and
+#if defined (HAVE_TERMIOS) || defined (TIOCGPGRP)
+#ifdef HAVE_SETPGID
+ /* The call setpgid (0, 0) is supposed to work and mean the same
+ thing as this, but on Ultrix 4.2A it fails with EPERM (and
setpgid (getpid (), getpid ()) succeeds). */
retval = setpgid (getpid (), getpid ());
#else
-#if defined (TIOCGPGRP)
-#if defined(USG) && !defined(SETPGRP_ARGS)
+#ifdef HAVE_SETPGRP
+#ifdef SETPGRP_VOID
retval = setpgrp ();
#else
retval = setpgrp (getpid (), getpid ());
-#endif /* USG */
-#endif /* TIOCGPGRP. */
-#endif /* NEED_POSIX_SETPGID */
+#endif
+#endif /* HAVE_SETPGRP */
+#endif /* HAVE_SETPGID */
+#endif /* defined (HAVE_TERMIOS) || defined (TIOCGPGRP) */
}
+
return retval;
}
+/* Get all the current tty settings (including whether we have a
+ tty at all!). We can't do this in _initialize_inflow because
+ serial_fdopen() won't work until the serial_ops_list is
+ initialized, but we don't want to do it lazily either, so
+ that we can guarantee stdin_serial is opened if there is
+ a terminal. */
+void
+initialize_stdin_serial (void)
+{
+ stdin_serial = serial_fdopen (0);
+}
+
void
_initialize_inflow (void)
{
add_info ("terminal", term_info,
- "Print inferior's saved terminal status.");
+ _("Print inferior's saved terminal status."));
add_com ("kill", class_run, kill_command,
- "Kill execution of program being debugged.");
+ _("Kill execution of program being debugged."));
- inferior_pid = 0;
+ inferior_ptid = null_ptid;
terminal_is_ours = 1;