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import gdb-1999-07-07 post reformat

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This commit is contained in:
Jason Molenda
1999-07-07 20:19:36 +00:00
parent 3a4b77d8be
commit c5aa993b1f
643 changed files with 69889 additions and 65773 deletions
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203
gdb/inflow.c
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@@ -1,21 +1,22 @@
/* Low level interface to ptrace, for GDB when running under Unix.
Copyright 1986-87, 1989, 1991-92, 1995, 1998 Free Software Foundation, Inc.
This file is part of GDB.
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 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.
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. */
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 "frame.h"
@@ -114,7 +115,11 @@ static char *inferior_thisrun_terminal;
int terminal_is_ours;
enum {yes, no, have_not_checked} gdb_has_a_terminal_flag = have_not_checked;
enum
{
yes, no, have_not_checked
}
gdb_has_a_terminal_flag = have_not_checked;
/* Does GDB have a terminal (on stdin)? */
int
@@ -128,8 +133,8 @@ gdb_has_a_terminal ()
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. */
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);
@@ -182,7 +187,7 @@ terminal_init_inferior_with_pgrp (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). */
a new function SERIAL_COPY_TTY_STATE). */
if (inferior_ttystate)
free (inferior_ttystate);
inferior_ttystate = SERIAL_GET_TTY_STATE (stdin_serial);
@@ -192,8 +197,8 @@ terminal_init_inferior_with_pgrp (pgrp)
#endif
/* Make sure that next time we call terminal_inferior (which will be
before the program runs, as it needs to be), we install the new
process group. */
before the program runs, as it needs to be), we install the new
process group. */
terminal_is_ours = 1;
}
}
@@ -225,38 +230,38 @@ terminal_inferior ()
#ifdef F_GETFL
/* Is there a reason this is being done twice? It happens both
places we use F_SETFL, so I'm inclined to think perhaps there
is some reason, however perverse. Perhaps not though... */
places we use F_SETFL, so I'm inclined to think perhaps there
is some reason, however perverse. Perhaps not though... */
result = fcntl (0, F_SETFL, tflags_inferior);
result = fcntl (0, F_SETFL, tflags_inferior);
OOPSY ("fcntl F_SETFL");
#endif
/* 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. */
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);
OOPSY ("setting tty state");
if (!job_control)
{
sigint_ours = (void (*) ()) signal (SIGINT, SIG_IGN);
sigint_ours = (void (*)()) signal (SIGINT, SIG_IGN);
#ifdef SIGQUIT
sigquit_ours = (void (*) ()) signal (SIGQUIT, SIG_IGN);
sigquit_ours = (void (*)()) signal (SIGQUIT, SIG_IGN);
#endif
}
/* If attach_flag is set, we don't know whether we are sharing a
terminal with the inferior or not. (attaching a process
without a terminal is one case where we do not; attaching a
process which we ran from the same shell as GDB via `&' is
one case where we do, I think (but perhaps this is not
`sharing' in the sense that we need to save and restore tty
state)). I don't know if there is any way to tell whether we
are sharing a terminal. So what we do is to go through all
the saving and restoring of the tty state, but ignore errors
setting the process group, which will happen if we are not
sharing a terminal). */
terminal with the inferior or not. (attaching a process
without a terminal is one case where we do not; attaching a
process which we ran from the same shell as GDB via `&' is
one case where we do, I think (but perhaps this is not
`sharing' in the sense that we need to save and restore tty
state)). I don't know if there is any way to tell whether we
are sharing a terminal. So what we do is to go through all
the saving and restoring of the tty state, but ignore errors
setting the process group, which will happen if we are not
sharing a terminal). */
if (job_control)
{
@@ -319,7 +324,7 @@ terminal_ours_1 (output_only)
if (!terminal_is_ours)
{
/* Ignore this signal since it will happen when we try to set the
pgrp. */
pgrp. */
void (*osigttou) ();
int result;
@@ -327,7 +332,7 @@ terminal_ours_1 (output_only)
#ifdef SIGTTOU
if (job_control)
osigttou = (void (*) ()) signal (SIGTTOU, SIG_IGN);
osigttou = (void (*)()) signal (SIGTTOU, SIG_IGN);
#endif
if (inferior_ttystate)
@@ -344,18 +349,18 @@ terminal_ours_1 (output_only)
#endif
/* Here we used to set ICANON in our ttystate, but I believe this
was an artifact from before when we used readline. Readline sets
the tty state when it needs to.
FIXME-maybe: However, query() expects non-raw mode and doesn't
use readline. Maybe query should use readline (on the other hand,
this only matters for HAVE_SGTTY, not termio or termios, I think). */
was an artifact from before when we used readline. Readline sets
the tty state when it needs to.
FIXME-maybe: However, query() expects non-raw mode and doesn't
use readline. Maybe query should use readline (on the other hand,
this only matters for HAVE_SGTTY, not termio or termios, I think). */
/* Set tty state to our_ttystate. We don't change in our out of raw
mode, to avoid flushing input. We need to do the same thing
regardless of output_only, because we don't have separate
terminal_is_ours and terminal_is_ours_for_output flags. It's OK,
though, since readline will deal with raw mode when/if it needs to.
*/
mode, to avoid flushing input. We need to do the same thing
regardless of output_only, because we don't have separate
terminal_is_ours and terminal_is_ours_for_output flags. It's OK,
though, since readline will deal with raw mode when/if it needs to.
*/
SERIAL_NOFLUSH_SET_TTY_STATE (stdin_serial, our_ttystate,
inferior_ttystate);
@@ -371,7 +376,7 @@ terminal_ours_1 (output_only)
such situations as well. */
if (result == -1)
fprintf_unfiltered (gdb_stderr, "[tcsetpgrp failed in terminal_ours: %s]\n",
strerror (errno));
strerror (errno));
#endif
#endif /* termios */
@@ -397,13 +402,13 @@ terminal_ours_1 (output_only)
tflags_inferior = fcntl (0, F_GETFL, 0);
/* Is there a reason this is being done twice? It happens both
places we use F_SETFL, so I'm inclined to think perhaps there
is some reason, however perverse. Perhaps not though... */
places we use F_SETFL, so I'm inclined to think perhaps there
is some reason, however perverse. Perhaps not though... */
result = fcntl (0, F_SETFL, tflags_ours);
result = fcntl (0, F_SETFL, tflags_ours);
#endif
result = result; /* lint */
result = result; /* lint */
}
}
@@ -433,7 +438,7 @@ child_terminal_info (args, from_tty)
/* First the fcntl flags. */
{
int flags;
flags = tflags_inferior;
printf_filtered ("File descriptor flags = ");
@@ -444,18 +449,24 @@ child_terminal_info (args, from_tty)
/* (O_ACCMODE) parens are to avoid Ultrix header file bug */
switch (flags & (O_ACCMODE))
{
case O_RDONLY: printf_filtered ("O_RDONLY"); break;
case O_WRONLY: printf_filtered ("O_WRONLY"); break;
case O_RDWR: printf_filtered ("O_RDWR"); break;
case O_RDONLY:
printf_filtered ("O_RDONLY");
break;
case O_WRONLY:
printf_filtered ("O_WRONLY");
break;
case O_RDWR:
printf_filtered ("O_RDWR");
break;
}
flags &= ~(O_ACCMODE);
#ifdef O_NONBLOCK
if (flags & O_NONBLOCK)
if (flags & O_NONBLOCK)
printf_filtered (" | O_NONBLOCK");
flags &= ~O_NONBLOCK;
#endif
#if defined (O_NDELAY)
/* If O_NDELAY and O_NONBLOCK are defined to the same thing, we will
print it as O_NONBLOCK, which is good cause that is what POSIX
@@ -517,41 +528,50 @@ new_tty ()
/* Disconnect the child process from our controlling terminal. On some
systems (SVR4 for example), this may cause a SIGTTOU, so temporarily
ignore SIGTTOU. */
tty = open("/dev/tty", O_RDWR);
tty = open ("/dev/tty", O_RDWR);
if (tty > 0)
{
void (*osigttou) ();
osigttou = (void (*)()) signal(SIGTTOU, SIG_IGN);
ioctl(tty, TIOCNOTTY, 0);
close(tty);
signal(SIGTTOU, osigttou);
osigttou = (void (*)()) signal (SIGTTOU, SIG_IGN);
ioctl (tty, TIOCNOTTY, 0);
close (tty);
signal (SIGTTOU, osigttou);
}
#endif
/* Now open the specified new terminal. */
#ifdef USE_O_NOCTTY
tty = open(inferior_thisrun_terminal, O_RDWR | O_NOCTTY);
tty = open (inferior_thisrun_terminal, O_RDWR | O_NOCTTY);
#else
tty = open(inferior_thisrun_terminal, O_RDWR);
tty = open (inferior_thisrun_terminal, O_RDWR);
#endif
if (tty == -1)
{
print_sys_errmsg (inferior_thisrun_terminal, errno);
_exit(1);
_exit (1);
}
/* Avoid use of dup2; doesn't exist on all systems. */
if (tty != 0)
{ close (0); dup (tty); }
{
close (0);
dup (tty);
}
if (tty != 1)
{ close (1); dup (tty); }
{
close (1);
dup (tty);
}
if (tty != 2)
{ close (2); dup (tty); }
{
close (2);
dup (tty);
}
if (tty > 2)
close(tty);
#endif /* !go32 && !win32*/
close (tty);
#endif /* !go32 && !win32 */
}
/* Kill the inferior process. Make us have no inferior. */
@@ -572,17 +592,18 @@ kill_command (arg, from_tty)
error ("Not confirmed.");
target_kill ();
init_thread_list(); /* Destroy thread info */
init_thread_list (); /* Destroy thread info */
/* Killing off the inferior can leave us with a core file. If so,
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);
}
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);
}
}
/* Call set_sigint_trap when you need to pass a signal on to an attached
@@ -591,26 +612,26 @@ kill_command (arg, from_tty)
/* ARGSUSED */
static void
pass_signal (signo)
int signo;
int signo;
{
#ifndef _WIN32
kill (PIDGET (inferior_pid), SIGINT);
#endif
}
static void (*osig)();
static void (*osig) ();
void
set_sigint_trap()
set_sigint_trap ()
{
if (attach_flag || inferior_thisrun_terminal)
{
osig = (void (*) ()) signal (SIGINT, pass_signal);
osig = (void (*)()) signal (SIGINT, pass_signal);
}
}
void
clear_sigint_trap()
clear_sigint_trap ()
{
if (attach_flag || inferior_thisrun_terminal)
{
@@ -649,8 +670,8 @@ set_sigio_trap ()
{
if (target_activity_function)
{
old_sigio = (void (*) ()) signal (SIGIO, handle_sigio);
fcntl (target_activity_fd, F_SETOWN, getpid());
old_sigio = (void (*)()) signal (SIGIO, handle_sigio);
fcntl (target_activity_fd, F_SETOWN, getpid ());
old_fcntl_flags = fcntl (target_activity_fd, F_GETFL, 0);
fcntl (target_activity_fd, F_SETFL, old_fcntl_flags | FASYNC);
}
@@ -700,8 +721,8 @@ gdb_setpgid ()
{
#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
setpgid (getpid (), getpid ()) succeeds). */
this, but on Ultrix 4.2A it fails with EPERM (and
setpgid (getpid (), getpid ()) succeeds). */
retval = setpgid (getpid (), getpid ());
#else
#if defined (TIOCGPGRP)
@@ -720,7 +741,7 @@ void
_initialize_inflow ()
{
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.");
@@ -741,10 +762,10 @@ _initialize_inflow ()
#ifdef _SC_JOB_CONTROL
job_control = sysconf (_SC_JOB_CONTROL);
#else
job_control = 0; /* have to assume the worst */
#endif /* _SC_JOB_CONTROL */
#endif /* _POSIX_JOB_CONTROL */
#endif /* HAVE_TERMIOS */
job_control = 0; /* have to assume the worst */
#endif /* _SC_JOB_CONTROL */
#endif /* _POSIX_JOB_CONTROL */
#endif /* HAVE_TERMIOS */
#ifdef HAVE_SGTTY
#ifdef TIOCGPGRP