/* 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.
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
+ 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,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "frame.h"
#include "inferior.h"
#include "command.h"
-#include "signals.h"
#include "serial.h"
#include "terminal.h"
#include "target.h"
#include "gdb_string.h"
#include <signal.h>
#include <fcntl.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#ifdef HAVE_SYS_SELECT_H
-#include <sys/select.h>
-#endif
+#include "gdb_select.h"
-#ifdef HAVE_TERMIOS
-#define PROCESS_GROUP_TYPE pid_t
-#endif
+#include "inflow.h"
-#ifdef HAVE_TERMIO
-#define PROCESS_GROUP_TYPE int
+#ifdef HAVE_SYS_IOCTL_H
+#include <sys/ioctl.h>
#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
+#ifndef O_NOCTTY
+#define O_NOCTTY 0
#endif
-#endif /* sgtty */
#if defined (SIGIO) && defined (FASYNC) && defined (FD_SET) && defined (F_SETOWN)
-static void
-handle_sigio PARAMS ((int));
+static void handle_sigio (int);
#endif
-extern void _initialize_inflow PARAMS ((void));
+extern void _initialize_inflow (void);
-static void
-pass_signal PARAMS ((int));
+static void pass_signal (int);
-static void
-kill_command PARAMS ((char *, int));
+static void kill_command (char *, int);
-static void
-terminal_ours_1 PARAMS ((int));
+static void terminal_ours_1 (int);
\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
/* Does GDB have a terminal (on stdin)? */
int
-gdb_has_a_terminal ()
+gdb_has_a_terminal (void)
{
switch (gdb_has_a_terminal_flag)
{
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 PARAMS ((int));
+static void terminal_ours_1 (int);
/* Initialize the terminal settings we record for the inferior,
before we actually run the inferior. */
void
-terminal_init_inferior_with_pgrp (pgrp)
- int pgrp;
+terminal_init_inferior_with_pgrp (int pgrp)
{
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)
- free (inferior_ttystate);
- inferior_ttystate = SERIAL_GET_TTY_STATE (stdin_serial);
+ xfree (inferior_ttystate);
+ 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 ()
+terminal_init_inferior (void)
{
#ifdef PROCESS_GROUP_TYPE
/* This is for Lynx, and should be cleaned up by having Lynx be a separate
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 */
}
This is preparation for starting or resuming the inferior. */
void
-terminal_inferior ()
+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)
should be called to get back to a normal state of affairs. */
void
-terminal_ours_for_output ()
+terminal_ours_for_output (void)
{
terminal_ours_1 (1);
}
so they can be restored properly later. */
void
-terminal_ours ()
+terminal_ours (void)
{
terminal_ours_1 (0);
}
flags. */
static void
-terminal_ours_1 (output_only)
- int output_only;
+terminal_ours_1 (int output_only)
{
/* Checking inferior_thisrun_terminal is necessary so that
if GDB is running in the background, it won't block trying
if (!terminal_is_ours)
{
+#ifdef SIGTTOU
/* Ignore this signal since it will happen when we try to set the
pgrp. */
- void (*osigttou) ();
+ void (*osigttou) () = NULL;
+#endif
int result;
terminal_is_ours = 1;
#endif
if (inferior_ttystate)
- free (inferior_ttystate);
- inferior_ttystate = SERIAL_GET_TTY_STATE (stdin_serial);
+ xfree (inferior_ttystate);
+ 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 (arg, from_tty)
- char *arg;
- int from_tty;
+term_info (char *arg, int from_tty)
{
target_terminal_info (arg, from_tty);
}
-/* ARGSUSED */
void
-child_terminal_info (args, from_tty)
- char *args;
- int from_tty;
+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. */
{
}
#ifdef PROCESS_GROUP_TYPE
- printf_filtered ("Process group = %d\n", inferior_process_group);
+ printf_filtered ("Process group = %d\n",
+ (int) inferior_process_group);
#endif
- SERIAL_PRINT_TTY_STATE (stdin_serial, inferior_ttystate);
+ 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 (ttyname)
- 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 ()
+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 (arg, from_tty)
- char *arg;
- int from_tty;
+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 (signo)
- int signo;
+pass_signal (int signo)
{
#ifndef _WIN32
- kill (PIDGET (inferior_pid), SIGINT);
+ kill (PIDGET (inferior_ptid), SIGINT);
#endif
}
static void (*osig) ();
void
-set_sigint_trap ()
+set_sigint_trap (void)
{
if (attach_flag || inferior_thisrun_terminal)
{
}
void
-clear_sigint_trap ()
+clear_sigint_trap (void)
{
if (attach_flag || inferior_thisrun_terminal)
{
static void (*old_sigio) ();
static void
-handle_sigio (signo)
- int signo;
+handle_sigio (int signo)
{
int numfds;
fd_set readfds;
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
}
}
static int old_fcntl_flags;
void
-set_sigio_trap ()
+set_sigio_trap (void)
{
if (target_activity_function)
{
}
void
-clear_sigio_trap ()
+clear_sigio_trap (void)
{
if (target_activity_function)
{
}
#else /* No SIGIO. */
void
-set_sigio_trap ()
+set_sigio_trap (void)
{
if (target_activity_function)
- abort ();
+ internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
}
void
-clear_sigio_trap ()
+clear_sigio_trap (void)
{
if (target_activity_function)
- abort ();
+ internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
}
#endif /* No SIGIO. */
\f
calls setpgrp and a setpgrp which does nothing (any system with job control
will have one or the other). */
int
-gdb_setpgid ()
+gdb_setpgid (void)
{
int retval = 0;
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 ()
+_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;
projects / thirdparty / binutils-gdb.git / blobdiff