Initial revision

1 files changed, 0 insertions, 549 deletions

diff --git a/gdb/inflow.c b/gdb/inflow.c
deleted file mode 100644
index 5062643..0000000
--- a/gdb/inflow.c
+++ /dev/null
@@ -1,549 +0,0 @@
-/* Low level interface to ptrace, for GDB when running under Unix.
-   Copyright (C) 1986, 1987, 1989 Free Software Foundation, Inc.
-
-This file is part of GDB.
-
-GDB 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 1, or (at your option)
-any later version.
-
-GDB 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 GDB; see the file COPYING.  If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
-
-#include <stdio.h>
-#include "defs.h"
-#include "param.h"
-#include "frame.h"
-#include "inferior.h"
-
-#ifdef USG
-#include <sys/types.h>
-#endif
-
-/* Some USG-esque systems (some of which are BSD-esque enough so that USG
-   is not defined) want this header, and it won't do any harm.  */
-#include <fcntl.h>
-
-#include <sys/param.h>
-#include <sys/dir.h>
-#include <signal.h>
-
-#ifdef HAVE_TERMIO
-#include <termio.h>
-#undef TIOCGETP
-#define TIOCGETP TCGETA
-#undef TIOCSETN
-#define TIOCSETN TCSETA
-#undef TIOCSETP
-#define TIOCSETP TCSETAF
-#define TERMINAL struct termio
-#else
-#include <sys/ioctl.h>
-#include <fcntl.h>
-#include <sgtty.h>
-#define TERMINAL struct sgttyb
-#endif
-
-#ifdef SET_STACK_LIMIT_HUGE
-#include <sys/time.h>
-#include <sys/resource.h>
-extern int original_stack_limit;
-#endif /* SET_STACK_LIMIT_HUGE */
-
-extern int errno;
-
-/* Nonzero if we are debugging an attached outside process
-   rather than an inferior.  */
-
-int attach_flag;
-
-
-/* Record terminal status separately for debugger and inferior.  */
-
-static TERMINAL sg_inferior;
-static TERMINAL sg_ours;
-
-static int tflags_inferior;
-static int tflags_ours;
-
-#if defined(TIOCGETC) && !defined(TIOCGETC_BROKEN)
-static struct tchars tc_inferior;
-static struct tchars tc_ours;
-#endif
-
-#ifdef TIOCGLTC
-static struct ltchars ltc_inferior;
-static struct ltchars ltc_ours;
-#endif
-
-#ifdef TIOCLGET
-static int lmode_inferior;
-static int lmode_ours;
-#endif
-
-#ifdef TIOCGPGRP
-static int pgrp_inferior;
-static int pgrp_ours;
-#else
-static int (*sigint_ours) ();
-static int (*sigquit_ours) ();
-#endif /* TIOCGPGRP */
-
-/* Copy of inferior_io_terminal when inferior was last started.  */
-static char *inferior_thisrun_terminal;
-
-static void terminal_ours_1 ();
-
-/* Nonzero if our terminal settings are in effect.
-   Zero if the inferior's settings are in effect.  */
-static int terminal_is_ours;
-
-/* Initialize the terminal settings we record for the inferior,
-   before we actually run the inferior.  */
-
-void
-terminal_init_inferior ()
-{
-  if (remote_debugging)
-    return;
-
-  sg_inferior = sg_ours;
-  tflags_inferior = tflags_ours;
-
-#if defined(TIOCGETC) && !defined(TIOCGETC_BROKEN)
-  tc_inferior = tc_ours;
-#endif
-
-#ifdef TIOCGLTC
-  ltc_inferior = ltc_ours;
-#endif
-
-#ifdef TIOCLGET
-  lmode_inferior = lmode_ours;
-#endif
-
-#ifdef TIOCGPGRP
-  pgrp_inferior = inferior_pid;
-#endif /* TIOCGPGRP */
-
-  terminal_is_ours = 1;
-}
-
-/* Put the inferior's terminal settings into effect.
-   This is preparation for starting or resuming the inferior.  */
-
-void
-terminal_inferior ()
-{
-  if (remote_debugging)
-    return;
-
-  if (terminal_is_ours)   /*  && inferior_thisrun_terminal == 0) */
-    {
-      fcntl (0, F_SETFL, tflags_inferior);
-      fcntl (0, F_SETFL, tflags_inferior);
-      ioctl (0, TIOCSETN, &sg_inferior);
-
-#if defined(TIOCGETC) && !defined(TIOCGETC_BROKEN)
-      ioctl (0, TIOCSETC, &tc_inferior);
-#endif
-#ifdef TIOCGLTC
-      ioctl (0, TIOCSLTC, &ltc_inferior);
-#endif
-#ifdef TIOCLGET
-      ioctl (0, TIOCLSET, &lmode_inferior);
-#endif
-
-#ifdef TIOCGPGRP
-      ioctl (0, TIOCSPGRP, &pgrp_inferior);
-#else
-      sigint_ours = (int (*) ()) signal (SIGINT, SIG_IGN);
-      sigquit_ours = (int (*) ()) signal (SIGQUIT, SIG_IGN);
-#endif /* TIOCGPGRP */
-    }
-  terminal_is_ours = 0;
-}
-
-/* Put some of our terminal settings into effect,
-   enough to get proper results from our output,
-   but do not change into or out of RAW mode
-   so that no input is discarded.
-
-   After doing this, either terminal_ours or terminal_inferior
-   should be called to get back to a normal state of affairs.  */
-
-void
-terminal_ours_for_output ()
-{
-  if (remote_debugging)
-    return;
-
-  terminal_ours_1 (1);
-}
-
-/* Put our terminal settings into effect.
-   First record the inferior's terminal settings
-   so they can be restored properly later.  */
-
-void
-terminal_ours ()
-{
-  if (remote_debugging)
-    return;
-
-  terminal_ours_1 (0);
-}
-
-static void
-terminal_ours_1 (output_only)
-     int output_only;
-{
-#ifdef TIOCGPGRP
-  /* Ignore this signal since it will happen when we try to set the pgrp.  */
-  int (*osigttou) ();
-#endif /* TIOCGPGRP */
-
-  if (!terminal_is_ours)  /*   && inferior_thisrun_terminal == 0)  */
-    {
-      terminal_is_ours = 1;
-
-#ifdef TIOCGPGRP
-      osigttou = (int (*) ()) signal (SIGTTOU, SIG_IGN);
-
-      ioctl (0, TIOCGPGRP, &pgrp_inferior);
-      ioctl (0, TIOCSPGRP, &pgrp_ours);
-
-      signal (SIGTTOU, osigttou);
-#else
-      signal (SIGINT, sigint_ours);
-      signal (SIGQUIT, sigquit_ours);
-#endif /* TIOCGPGRP */
-
-      tflags_inferior = fcntl (0, F_GETFL, 0);
-      ioctl (0, TIOCGETP, &sg_inferior);
-
-#if defined(TIOCGETC) && !defined(TIOCGETC_BROKEN)
-      ioctl (0, TIOCGETC, &tc_inferior);
-#endif
-#ifdef TIOCGLTC
-      ioctl (0, TIOCGLTC, &ltc_inferior);
-#endif
-#ifdef TIOCLGET
-      ioctl (0, TIOCLGET, &lmode_inferior);
-#endif
-    }
-
-#ifdef HAVE_TERMIO
-  sg_ours.c_lflag |= ICANON;
-  if (output_only && !(sg_inferior.c_lflag & ICANON))
-    sg_ours.c_lflag &= ~ICANON;
-#else /* not HAVE_TERMIO */
-  sg_ours.sg_flags &= ~RAW & ~CBREAK;
-  if (output_only)
-    sg_ours.sg_flags |= (RAW | CBREAK) & sg_inferior.sg_flags;
-#endif /* not HAVE_TERMIO */
-
-  fcntl (0, F_SETFL, tflags_ours);
-  fcntl (0, F_SETFL, tflags_ours);
-  ioctl (0, TIOCSETN, &sg_ours);
-
-#if defined(TIOCGETC) && !defined(TIOCGETC_BROKEN)
-  ioctl (0, TIOCSETC, &tc_ours);
-#endif
-#ifdef TIOCGLTC
-  ioctl (0, TIOCSLTC, &ltc_ours);
-#endif
-#ifdef TIOCLGET
-  ioctl (0, TIOCLSET, &lmode_ours);
-#endif
-
-#ifdef HAVE_TERMIO
-  sg_ours.c_lflag |= ICANON;
-#else /* not HAVE_TERMIO */
-  sg_ours.sg_flags &= ~RAW & ~CBREAK;
-#endif /* not HAVE_TERMIO */
-}
-
-static void
-term_status_command ()
-{
-  register int i;
-
-  if (remote_debugging)
-    {
-      printf_filtered ("No terminal status when remote debugging.\n");
-      return;
-    }
-
-  printf_filtered ("Inferior's terminal status (currently saved by GDB):\n");
-
-#ifdef HAVE_TERMIO
-
-  printf_filtered ("fcntl flags = 0x%x, c_iflag = 0x%x, c_oflag = 0x%x,\n",
-	  tflags_inferior, sg_inferior.c_iflag, sg_inferior.c_oflag);
-  printf_filtered ("c_cflag = 0x%x, c_lflag = 0x%x, c_line = 0x%x.\n",
-	  sg_inferior.c_cflag, sg_inferior.c_lflag, sg_inferior.c_line);
-  printf_filtered ("c_cc: ");
-  for (i = 0; (i < NCC); i += 1)
-    printf_filtered ("0x%x ", sg_inferior.c_cc[i]);
-  printf_filtered ("\n");
-
-#else /* not HAVE_TERMIO */
-
-  printf_filtered ("fcntl flags = 0x%x, sgttyb.sg_flags = 0x%x, owner pid = %d.\n",
-	  tflags_inferior, sg_inferior.sg_flags, pgrp_inferior);
-
-#endif /* not HAVE_TERMIO */
-
-#if defined(TIOCGETC) && !defined(TIOCGETC_BROKEN)
-  printf_filtered ("tchars: ");
-  for (i = 0; i < sizeof (struct tchars); i++)
-    printf_filtered ("0x%x ", ((char *)&tc_inferior)[i]);
-  printf_filtered ("\n");
-#endif
-
-#ifdef TIOCGLTC
-  printf_filtered ("ltchars: ");
-  for (i = 0; i < sizeof (struct ltchars); i++)
-    printf_filtered ("0x%x ", ((char *)&ltc_inferior)[i]);
-  printf_filtered ("\n");
-  ioctl (0, TIOCSLTC, &ltc_ours);
-#endif
-  
-#ifdef TIOCLGET
-  printf_filtered ("lmode:  %x\n", lmode_inferior);
-#endif
-}
-
-static void
-new_tty (ttyname)
-     char *ttyname;
-{
-  register int tty;
-  register int fd;
-
-#ifdef TIOCNOTTY
-  /* Disconnect the child process from our controlling terminal.  */
-  tty = open("/dev/tty", O_RDWR);
-  if (tty > 0)
-    {
-      ioctl(tty, TIOCNOTTY, 0);
-      close(tty);
-    }
-#endif
-
-  /* Now open the specified new terminal.  */
-
-  tty = open(ttyname, O_RDWR);
-  if (tty == -1)
-    _exit(1);
-
-  /* Avoid use of dup2; doesn't exist on all systems.  */
-  if (tty != 0)
-    { close (0); dup (tty); }
-  if (tty != 1)
-    { close (1); dup (tty); }
-  if (tty != 2)
-    { close (2); dup (tty); }
-  if (tty > 2)
-    close(tty);
-}
-
-/* Start an inferior process and returns its pid.
-   ALLARGS is a string containing shell command to run the program.
-   ENV is the environment vector to pass.  */
-
-#ifndef SHELL_FILE
-#define SHELL_FILE "/bin/sh"
-#endif
-
-int
-create_inferior (allargs, env)
-     char *allargs;
-     char **env;
-{
-  int pid;
-  char *shell_command;
-  extern int sys_nerr;
-  extern char *sys_errlist[];
-  extern int errno;
-
-  /* If desired, concat something onto the front of ALLARGS.
-     SHELL_COMMAND is the result.  */
-#ifdef SHELL_COMMAND_CONCAT
-  shell_command = (char *) alloca (strlen (SHELL_COMMAND_CONCAT) + strlen (allargs) + 1);
-  strcpy (shell_command, SHELL_COMMAND_CONCAT);
-  strcat (shell_command, allargs);
-#else
-  shell_command = allargs;
-#endif
-
-  /* exec is said to fail if the executable is open.  */
-  close_exec_file ();
-
-#if defined(USG) && !defined(HAVE_VFORK)
-  pid = fork ();
-#else
-  pid = vfork ();
-#endif
-
-  if (pid < 0)
-    perror_with_name ("vfork");
-
-  if (pid == 0)
-    {
-#ifdef TIOCGPGRP
-      /* Run inferior in a separate process group.  */
-      setpgrp (getpid (), getpid ());
-#endif /* TIOCGPGRP */
-
-#ifdef SET_STACK_LIMIT_HUGE
-      /* Reset the stack limit back to what it was.  */
-      {
-	struct rlimit rlim;
-
-	getrlimit (RLIMIT_STACK, &rlim);
-	rlim.rlim_cur = original_stack_limit;
-	setrlimit (RLIMIT_STACK, &rlim);
-      }
-#endif /* SET_STACK_LIMIT_HUGE */
-
-
-      inferior_thisrun_terminal = inferior_io_terminal;
-      if (inferior_io_terminal != 0)
-	new_tty (inferior_io_terminal);
-
-/* It seems that changing the signal handlers for the inferior after
-   a vfork also changes them for the superior.  See comments in
-   initialize_signals for how we get the right signal handlers
-   for the inferior.  */
-/* Not needed on Sun, at least, and loses there
-   because it clobbers the superior.  */
-/*???      signal (SIGQUIT, SIG_DFL);
-      signal (SIGINT, SIG_DFL);  */
-
-      call_ptrace (0);
-      execle (SHELL_FILE, "sh", "-c", shell_command, 0, env);
-
-      fprintf (stderr, "Cannot exec %s: %s.\n", SHELL_FILE,
-	       errno < sys_nerr ? sys_errlist[errno] : "unknown error");
-      fflush (stderr);
-      _exit (0177);
-    }
-
-#ifdef CREATE_INFERIOR_HOOK
-  CREATE_INFERIOR_HOOK (pid);
-#endif  
-  return pid;
-}
-
-/* Kill the inferior process.  Make us have no inferior.  */
-
-static void
-kill_command ()
-{
-  if (remote_debugging)
-    return;
-  if (inferior_pid == 0)
-    error ("The program is not being run.");
-  if (!query ("Kill the inferior process? "))
-    error ("Not confirmed.");
-  kill_inferior ();
-}
-
-void
-inferior_died ()
-{
-  inferior_pid = 0;
-  attach_flag = 0;
-  mark_breakpoints_out ();
-  select_frame ((FRAME) 0, -1);
-  reopen_exec_file ();
-  if (have_core_file_p ())
-    set_current_frame ( create_new_frame (read_register (FP_REGNUM),
-					  read_pc ()));
-  else
-    set_current_frame (0);
-}
-
-#if 0 
-/* This function is just for testing, and on some systems (Sony NewsOS
-   3.2) <sys/user.h> also includes <sys/time.h> which leads to errors
-   (since on this system at least sys/time.h is not protected against
-   multiple inclusion).  */
-static void
-try_writing_regs_command ()
-{
-  register int i;
-  register int value;
-  extern int errno;
-
-  if (inferior_pid == 0)
-    error ("There is no inferior process now.");
-
-  /* A Sun 3/50 or 3/60 (at least) running SunOS 4.0.3 will have a
-     kernel panic if we try to write past the end of the user area.
-     Presumably Sun will fix this bug (it has been reported), but it
-     is tacky to crash the system, so at least on SunOS4 we need to
-     stop writing when we hit the end of the user area.  */
-  for (i = 0; i < sizeof (struct user); i += 2)
-    {
-      QUIT;
-      errno = 0;
-      value = call_ptrace (3, inferior_pid, i, 0);
-      call_ptrace (6, inferior_pid, i, value);
-      if (errno == 0)
-	{
-	  printf (" Succeeded with address 0x%x; value 0x%x (%d).\n",
-		  i, value, value);
-	}
-      else if ((i & 0377) == 0)
-	printf (" Failed at 0x%x.\n", i);
-    }
-}
-#endif
-
-void
-_initialize_inflow ()
-{
-  add_com ("term-status", class_obscure, term_status_command,
-	   "Print info on inferior's saved terminal status.");
-
-#if 0
-  add_com ("try-writing-regs", class_obscure, try_writing_regs_command,
-	   "Try writing all locations in inferior's system block.\n\
-Report which ones can be written.");
-#endif
-
-  add_com ("kill", class_run, kill_command,
-	   "Kill execution of program being debugged.");
-
-  inferior_pid = 0;
-
-  ioctl (0, TIOCGETP, &sg_ours);
-  fcntl (0, F_GETFL, tflags_ours);
-
-#if defined(TIOCGETC) && !defined(TIOCGETC_BROKEN)
-  ioctl (0, TIOCGETC, &tc_ours);
-#endif
-#ifdef TIOCGLTC
-  ioctl (0, TIOCGLTC, &ltc_ours);
-#endif
-#ifdef TIOCLGET
-  ioctl (0, TIOCLGET, &lmode_ours);
-#endif
-
-#ifdef TIOCGPGRP
-  ioctl (0, TIOCGPGRP, &pgrp_ours);
-#endif /* TIOCGPGRP */
-
-  terminal_is_ours = 1;
-}
-