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[patch] Delete "remote cisco" (aka the "mutant remote protocol")


Hello,

This deletes the cisco specific code in "remote.c". Several comments here:

- at the time of the original commit (GDB's repository was still Cygnus internal) it received the title "mutant remote protocol" since it was giving off an odor that's now commonly refered to as "eau de HP Merge".
http://sources.redhat.com/ml/gdb/1999-q3/msg00147.html


- even CISCO think the code should be deleted
I'm reliably informed (abet more than a year ago) that even CISCO would prefer to see this code removed.


- I've been warning people of this for >1 year
http://sources.redhat.com/ml/gdb/2002-08/msg00071.html
http://sources.redhat.com/ml/gdb/2002-08/msg00170.html

I'm going to commit this in a few days once I've re-checked GDB with a non-mutant remote target.

Only question, are there any bits that deserve to be retained?

Andrew
Index: doc/ChangeLog
2004-01-05  Andrew Cagney  <cagney@redhat.com>

	* gdb.texinfo (Overview): Delete references to the cisco protocol
	including the "N" response.

2004-01-05  Andrew Cagney  <cagney@redhat.com>

	* remote.c: Update copyright.
	(echo_check, quit_flag, cisco_kernel_mode): Delete variables.
	(minitelnet_return, tty_input, escape_count): Delete variables.
	(remote_cisco_mode): Delete variable.
	(remote_cisco_open, remote_cisco_close): Delete function.
	(remote_cisco_mourn, remote_cisco_wait): Delete function.
	(init_remote_cisco_ops): Delete function.
	(_initialize_remote): Do not install "remote cisco" code.
	(read_frame): Delete cisco specific code.
	(remote_info_process): Delete function.
	(remote_wait): Delete cisco specific code.
	(remote_cisco_section_offsets): Delete function.
	(remote_cisco_objfile_relocate): Delete function.
	(remote_async_wait): Delete cisco specific code.
	(minitelnet, readtty, readsocket): Delete function.

Index: remote.c
===================================================================
RCS file: /cvs/src/src/gdb/remote.c,v
retrieving revision 1.124
diff -u -r1.124 remote.c
--- remote.c	8 Dec 2003 17:00:06 -0000	1.124
+++ remote.c	5 Jan 2004 20:53:07 -0000
@@ -1,7 +1,8 @@
 /* Remote target communications for serial-line targets in custom GDB protocol
 
    Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
-   1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+   1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -151,10 +152,6 @@
 
 static void init_extended_remote_ops (void);
 
-static void init_remote_cisco_ops (void);
-
-static struct target_ops remote_cisco_ops;
-
 static void remote_stop (void);
 
 static int ishex (int ch, int *val);
@@ -372,10 +369,6 @@
    starts.  */
 static struct serial *remote_desc = NULL;
 
-/* This is set by the target (thru the 'S' message)
-   to denote that the target is in kernel mode.  */
-static int cisco_kernel_mode = 0;
-
 /* This variable sets the number of bits in an address that are to be
    sent in a memory ("M" or "m") packet.  Normally, after stripping
    leading zeros, the entire address would be sent. This variable
@@ -2010,123 +2003,6 @@
   objfile_relocate (symfile_objfile, offs);
 }
 
-/*
- * Cisco version of section offsets:
- *
- * Instead of having GDB query the target for the section offsets,
- * Cisco lets the target volunteer the information!  It's also in
- * a different format, so here are the functions that will decode
- * a section offset packet from a Cisco target.
- */
-
-/* 
- * Function: remote_cisco_section_offsets
- *
- * Returns:  zero for success, non-zero for failure 
- */
-
-static int
-remote_cisco_section_offsets (bfd_vma text_addr,
-			      bfd_vma data_addr,
-			      bfd_vma bss_addr,
-			      bfd_signed_vma *text_offs,
-			      bfd_signed_vma *data_offs,
-			      bfd_signed_vma *bss_offs)
-{
-  bfd_vma text_base, data_base, bss_base;
-  struct minimal_symbol *start;
-  asection *sect;
-  bfd *abfd;
-  int len;
-
-  if (symfile_objfile == NULL)
-    return -1;			/* no can do nothin' */
-
-  start = lookup_minimal_symbol ("_start", NULL, NULL);
-  if (start == NULL)
-    return -1;			/* Can't find "_start" symbol */
-
-  data_base = bss_base = 0;
-  text_base = SYMBOL_VALUE_ADDRESS (start);
-
-  abfd = symfile_objfile->obfd;
-  for (sect = abfd->sections;
-       sect != 0;
-       sect = sect->next)
-    {
-      const char *p = bfd_get_section_name (abfd, sect);
-      len = strlen (p);
-      if (strcmp (p + len - 4, "data") == 0)	/* ends in "data" */
-	if (data_base == 0 ||
-	    data_base > bfd_get_section_vma (abfd, sect))
-	  data_base = bfd_get_section_vma (abfd, sect);
-      if (strcmp (p + len - 3, "bss") == 0)	/* ends in "bss" */
-	if (bss_base == 0 ||
-	    bss_base > bfd_get_section_vma (abfd, sect))
-	  bss_base = bfd_get_section_vma (abfd, sect);
-    }
-  *text_offs = text_addr - text_base;
-  *data_offs = data_addr - data_base;
-  *bss_offs = bss_addr - bss_base;
-  if (remote_debug)
-    {
-      char tmp[128];
-
-      sprintf (tmp, "VMA:          text = 0x");
-      sprintf_vma (tmp + strlen (tmp), text_addr);
-      sprintf (tmp + strlen (tmp), " data = 0x");
-      sprintf_vma (tmp + strlen (tmp), data_addr);
-      sprintf (tmp + strlen (tmp), " bss = 0x");
-      sprintf_vma (tmp + strlen (tmp), bss_addr);
-      fputs_filtered (tmp, gdb_stdlog);
-      fprintf_filtered (gdb_stdlog,
-			"Reloc offset: text = 0x%s data = 0x%s bss = 0x%s\n",
-			paddr_nz (*text_offs),
-			paddr_nz (*data_offs),
-			paddr_nz (*bss_offs));
-    }
-
-  return 0;
-}
-
-/*
- * Function: remote_cisco_objfile_relocate
- *
- * Relocate the symbol file for a remote target. 
- */
-
-void
-remote_cisco_objfile_relocate (bfd_signed_vma text_off, bfd_signed_vma data_off,
-			       bfd_signed_vma bss_off)
-{
-  struct section_offsets *offs;
-
-  if (text_off != 0 || data_off != 0 || bss_off != 0)
-    {
-      /* FIXME: This code assumes gdb-stabs.h is being used; it's
-         broken for xcoff, dwarf, sdb-coff, etc.  But there is no
-         simple canonical representation for this stuff.  */
-
-      offs = (struct section_offsets *) 
-	alloca (SIZEOF_N_SECTION_OFFSETS (symfile_objfile->num_sections));
-      memcpy (offs, symfile_objfile->section_offsets, 
-	      SIZEOF_N_SECTION_OFFSETS (symfile_objfile->num_sections));
-
-      offs->offsets[SECT_OFF_TEXT (symfile_objfile)] = text_off;
-      offs->offsets[SECT_OFF_DATA (symfile_objfile)] = data_off;
-      offs->offsets[SECT_OFF_BSS (symfile_objfile)] = bss_off;
-
-      /* First call the standard objfile_relocate.  */
-      objfile_relocate (symfile_objfile, offs);
-
-      /* Now we need to fix up the section entries already attached to
-         the exec target.  These entries will control memory transfers
-         from the exec file.  */
-
-      exec_set_section_offsets (text_off, data_off, bss_off);
-    }
-}
-
 /* Stub for catch_errors.  */
 
 static int
@@ -3108,70 +2984,10 @@
 
 	  if (buf[3] == 'p')
 	    {
-	      /* Export Cisco kernel mode as a convenience variable
-	         (so that it can be used in the GDB prompt if desired). */
-
-	      if (cisco_kernel_mode == 1)
-		set_internalvar (lookup_internalvar ("cisco_kernel_mode"),
-				 value_from_string ("PDEBUG-"));
-	      cisco_kernel_mode = 0;
 	      thread_num = strtol ((const char *) &buf[4], NULL, 16);
 	      record_currthread (thread_num);
 	    }
-	  else if (buf[3] == 'k')
-	    {
-	      /* Export Cisco kernel mode as a convenience variable
-	         (so that it can be used in the GDB prompt if desired). */
-
-	      if (cisco_kernel_mode == 1)
-		set_internalvar (lookup_internalvar ("cisco_kernel_mode"),
-				 value_from_string ("KDEBUG-"));
-	      cisco_kernel_mode = 1;
-	    }
 	  goto got_status;
-	case 'N':		/* Cisco special: status and offsets */
-	  {
-	    bfd_vma text_addr, data_addr, bss_addr;
-	    bfd_signed_vma text_off, data_off, bss_off;
-	    unsigned char *p1;
-
-	    status->kind = TARGET_WAITKIND_STOPPED;
-	    status->value.sig = (enum target_signal)
-	      (((fromhex (buf[1])) << 4) + (fromhex (buf[2])));
-
-	    if (symfile_objfile == NULL)
-	      {
-		warning ("Relocation packet received with no symbol file.  \
-Packet Dropped");
-		goto got_status;
-	      }
-
-	    /* Relocate object file.  Buffer format is NAATT;DD;BB
-	     * where AA is the signal number, TT is the new text
-	     * address, DD * is the new data address, and BB is the
-	     * new bss address.  */
-
-	    p = &buf[3];
-	    text_addr = strtoul (p, (char **) &p1, 16);
-	    if (p1 == p || *p1 != ';')
-	      warning ("Malformed relocation packet: Packet '%s'", buf);
-	    p = p1 + 1;
-	    data_addr = strtoul (p, (char **) &p1, 16);
-	    if (p1 == p || *p1 != ';')
-	      warning ("Malformed relocation packet: Packet '%s'", buf);
-	    p = p1 + 1;
-	    bss_addr = strtoul (p, (char **) &p1, 16);
-	    if (p1 == p)
-	      warning ("Malformed relocation packet: Packet '%s'", buf);
-
-	    if (remote_cisco_section_offsets (text_addr, data_addr, bss_addr,
-					      &text_off, &data_off, &bss_off)
-		== 0)
-	      if (text_off != 0 || data_off != 0 || bss_off != 0)
-		remote_cisco_objfile_relocate (text_off, data_off, bss_off);
-
-	    goto got_status;
-	  }
 	case 'W':		/* Target exited */
 	  {
 	    /* The remote process exited.  */
@@ -3357,70 +3173,10 @@
 
 	  if (buf[3] == 'p')
 	    {
-	      /* Export Cisco kernel mode as a convenience variable
-	         (so that it can be used in the GDB prompt if desired). */
-
-	      if (cisco_kernel_mode == 1)
-		set_internalvar (lookup_internalvar ("cisco_kernel_mode"),
-				 value_from_string ("PDEBUG-"));
-	      cisco_kernel_mode = 0;
 	      thread_num = strtol ((const char *) &buf[4], NULL, 16);
 	      record_currthread (thread_num);
 	    }
-	  else if (buf[3] == 'k')
-	    {
-	      /* Export Cisco kernel mode as a convenience variable
-	         (so that it can be used in the GDB prompt if desired). */
-
-	      if (cisco_kernel_mode == 1)
-		set_internalvar (lookup_internalvar ("cisco_kernel_mode"),
-				 value_from_string ("KDEBUG-"));
-	      cisco_kernel_mode = 1;
-	    }
 	  goto got_status;
-	case 'N':		/* Cisco special: status and offsets */
-	  {
-	    bfd_vma text_addr, data_addr, bss_addr;
-	    bfd_signed_vma text_off, data_off, bss_off;
-	    unsigned char *p1;
-
-	    status->kind = TARGET_WAITKIND_STOPPED;
-	    status->value.sig = (enum target_signal)
-	      (((fromhex (buf[1])) << 4) + (fromhex (buf[2])));
-
-	    if (symfile_objfile == NULL)
-	      {
-		warning ("Relocation packet recieved with no symbol file.  \
-Packet Dropped");
-		goto got_status;
-	      }
-
-	    /* Relocate object file.  Buffer format is NAATT;DD;BB
-	     * where AA is the signal number, TT is the new text
-	     * address, DD * is the new data address, and BB is the
-	     * new bss address.  */
-
-	    p = &buf[3];
-	    text_addr = strtoul (p, (char **) &p1, 16);
-	    if (p1 == p || *p1 != ';')
-	      warning ("Malformed relocation packet: Packet '%s'", buf);
-	    p = p1 + 1;
-	    data_addr = strtoul (p, (char **) &p1, 16);
-	    if (p1 == p || *p1 != ';')
-	      warning ("Malformed relocation packet: Packet '%s'", buf);
-	    p = p1 + 1;
-	    bss_addr = strtoul (p, (char **) &p1, 16);
-	    if (p1 == p)
-	      warning ("Malformed relocation packet: Packet '%s'", buf);
-
-	    if (remote_cisco_section_offsets (text_addr, data_addr, bss_addr,
-					      &text_off, &data_off, &bss_off)
-		== 0)
-	      if (text_off != 0 || data_off != 0 || bss_off != 0)
-		remote_cisco_objfile_relocate (text_off, data_off, bss_off);
-
-	    goto got_status;
-	  }
 	case 'W':		/* Target exited */
 	  {
 	    /* The remote process exited.  */
@@ -4261,8 +4017,6 @@
     }
 }
 
-static int remote_cisco_mode;
-
 /* Come here after finding the start of the frame.  Collect the rest
    into BUF, verifying the checksum, length, and handling run-length
    compression.  No more than sizeof_buf-1 characters are read so that
@@ -4344,24 +4098,9 @@
 	    int repeat;
  	    csum += c;
 
-	    if (remote_cisco_mode == 0)
-	      {
-		c = readchar (remote_timeout);
-		csum += c;
-		repeat = c - ' ' + 3;	/* Compute repeat count */
-	      }
-	    else 
-	      { 
-		/* Cisco's run-length encoding variant uses two 
-		   hex chars to represent the repeat count. */
-
-		c = readchar (remote_timeout);
-		csum += c;
-		repeat  = fromhex (c) << 4;
-		c = readchar (remote_timeout);
-		csum += c;
-		repeat += fromhex (c);
-	      }
+	    c = readchar (remote_timeout);
+	    csum += c;
+	    repeat = c - ' ' + 3;	/* Compute repeat count */
 
 	    /* The character before ``*'' is repeated. */
 
@@ -5499,409 +5238,6 @@
   extended_remote_ops.to_mourn_inferior = extended_remote_mourn;
 }
 
-/*
- * Command: info remote-process
- *
- * This implements Cisco's version of the "info proc" command.
- *
- * This query allows the target stub to return an arbitrary string
- * (or strings) giving arbitrary information about the target process.
- * This is optional; the target stub isn't required to implement it.
- *
- * Syntax: qfProcessInfo        request first string
- *         qsProcessInfo        request subsequent string
- * reply:  'O'<hex-encoded-string>
- *         'l'                  last reply (empty)
- */
-
-static void
-remote_info_process (char *args, int from_tty)
-{
-  struct remote_state *rs = get_remote_state ();
-  char *buf = alloca (rs->remote_packet_size);
-
-  if (remote_desc == 0)
-    error ("Command can only be used when connected to the remote target.");
-
-  putpkt ("qfProcessInfo");
-  getpkt (buf, (rs->remote_packet_size), 0);
-  if (buf[0] == 0)
-    return;			/* Silently: target does not support this feature. */
-
-  if (buf[0] == 'E')
-    error ("info proc: target error.");
-
-  while (buf[0] == 'O')		/* Capitol-O packet */
-    {
-      remote_console_output (&buf[1]);
-      putpkt ("qsProcessInfo");
-      getpkt (buf, (rs->remote_packet_size), 0);
-    }
-}
-
-/*
- * Target Cisco 
- */
-
-static void
-remote_cisco_open (char *name, int from_tty)
-{
-  int ex;
-  if (name == 0)
-    error ("To open a remote debug connection, you need to specify what \n"
-	   "device is attached to the remote system (e.g. host:port).");
-
-  /* See FIXME above */
-  wait_forever_enabled_p = 1;
-
-  target_preopen (from_tty);
-
-  unpush_target (&remote_cisco_ops);
-
-  remote_desc = remote_serial_open (name);
-  if (!remote_desc)
-    perror_with_name (name);
-
-  /*
-   * If a baud rate was specified on the gdb  command line it will
-   * be greater than the initial value of -1.  If it is, use it otherwise
-   * default to 9600
-   */
-
-  baud_rate = (baud_rate > 0) ? baud_rate : 9600;
-  if (serial_setbaudrate (remote_desc, baud_rate))
-    {
-      /* The requested speed could not be set.  Error out to
-	 top level after closing remote_desc.  Take care to
-	 set remote_desc to NULL to avoid closing remote_desc
-	 more than once.  */
-      serial_close (remote_desc);
-      remote_desc = NULL;
-      perror_with_name (name);
-    }
-
-  serial_raw (remote_desc);
-
-  /* If there is something sitting in the buffer we might take it as a
-     response to a command, which would be bad.  */
-  serial_flush_input (remote_desc);
-
-  if (from_tty)
-    {
-      puts_filtered ("Remote debugging using ");
-      puts_filtered (name);
-      puts_filtered ("\n");
-    }
-
-  remote_cisco_mode = 1;
-
-  push_target (&remote_cisco_ops);	/* Switch to using cisco target now */
-
-  init_all_packet_configs ();
-
-  general_thread = -2;
-  continue_thread = -2;
-
-  /* Probe for ability to use "ThreadInfo" query, as required.  */
-  use_threadinfo_query = 1;
-  use_threadextra_query = 1;
-  
-  /* Without this, some commands which require an active target (such
-     as kill) won't work.  This variable serves (at least) double duty
-     as both the pid of the target process (if it has such), and as a
-     flag indicating that a target is active.  These functions should
-     be split out into seperate variables, especially since GDB will
-     someday have a notion of debugging several processes.  */
-  inferior_ptid = pid_to_ptid (MAGIC_NULL_PID);
-
-  /* Start the remote connection; if error, discard this target.  See
-     the comments in remote_open_1() for further details such as the
-     need to re-throw the exception.  */
-  ex = catch_exceptions (uiout,
-			 remote_start_remote_dummy, NULL,
-			 "Couldn't establish connection to remote"
-			 " target\n",
-			 RETURN_MASK_ALL);
-  if (ex < 0)
-    {
-      pop_target ();
-      throw_exception (ex);
-    }
-}
-
-static void
-remote_cisco_close (int quitting)
-{
-  remote_cisco_mode = 0;
-  remote_close (quitting);
-}
-
-static void
-remote_cisco_mourn (void)
-{
-  remote_mourn_1 (&remote_cisco_ops);
-}
-
-enum
-{
-  READ_MORE,
-  FATAL_ERROR,
-  ENTER_DEBUG,
-  DISCONNECT_TELNET
-}
-minitelnet_return;
-
-/* Shared between readsocket() and readtty().  The size is arbitrary,
-   however all targets are known to support a 400 character packet.  */
-static char tty_input[400];
-
-static int escape_count;
-static int echo_check;
-extern int quit_flag;
-
-static int
-readsocket (void)
-{
-  int data;
-
-  /* Loop until the socket doesn't have any more data */
-
-  while ((data = readchar (0)) >= 0)
-    {
-      /* Check for the escape sequence */
-      if (data == '|')
-	{
-	  /* If this is the fourth escape, get out */
-	  if (++escape_count == 4)
-	    {
-	      return ENTER_DEBUG;
-	    }
-	  else
-	    {			/* This is a '|', but not the fourth in a row. 
-				   Continue without echoing it.  If it isn't actually 
-				   one of four in a row, it'll be echoed later.  */
-	      continue;
-	    }
-	}
-      else
-	/* Not a '|' */
-	{
-	  /* Ensure any pending '|'s are flushed.  */
-
-	  for (; escape_count > 0; escape_count--)
-	    putchar ('|');
-	}
-
-      if (data == '\r')		/* If this is a return character, */
-	continue;		/*  - just supress it. */
-
-      if (echo_check != -1)	/* Check for echo of user input.  */
-	{
-	  if (tty_input[echo_check] == data)
-	    {
-	      gdb_assert (echo_check <= sizeof (tty_input));
-	      echo_check++;	/* Character matched user input: */
-	      continue;		/* Continue without echoing it.  */
-	    }
-	  else if ((data == '\n') && (tty_input[echo_check] == '\r'))
-	    {			/* End of the line (and of echo checking).  */
-	      echo_check = -1;	/* No more echo supression */
-	      continue;		/* Continue without echoing.  */
-	    }
-	  else
-	    {			/* Failed check for echo of user input.
-				   We now have some suppressed output to flush!  */
-	      int j;
-
-	      for (j = 0; j < echo_check; j++)
-		putchar (tty_input[j]);
-	      echo_check = -1;
-	    }
-	}
-      putchar (data);		/* Default case: output the char.  */
-    }
-
-  if (data == SERIAL_TIMEOUT)	/* Timeout returned from readchar.  */
-    return READ_MORE;		/* Try to read some more */
-  else
-    return FATAL_ERROR;		/* Trouble, bail out */
-}
-
-static int
-readtty (void)
-{
-  int tty_bytecount;
-
-  /* First, read a buffer full from the terminal */
-  tty_bytecount = read (fileno (stdin), tty_input, sizeof (tty_input) - 1);
-  if (tty_bytecount == -1)
-    {
-      perror ("readtty: read failed");
-      return FATAL_ERROR;
-    }
-
-  /* Remove a quoted newline.  */
-  if (tty_input[tty_bytecount - 1] == '\n' &&
-      tty_input[tty_bytecount - 2] == '\\')	/* line ending in backslash */
-    {
-      tty_input[--tty_bytecount] = 0;	/* remove newline */
-      tty_input[--tty_bytecount] = 0;	/* remove backslash */
-    }
-
-  /* Turn trailing newlines into returns */
-  if (tty_input[tty_bytecount - 1] == '\n')
-    tty_input[tty_bytecount - 1] = '\r';
-
-  /* If the line consists of a ~, enter debugging mode.  */
-  if ((tty_input[0] == '~') && (tty_bytecount == 2))
-    return ENTER_DEBUG;
-
-  /* Make this a zero terminated string and write it out */
-  tty_input[tty_bytecount] = 0;
-  if (serial_write (remote_desc, tty_input, tty_bytecount))
-    {
-      perror_with_name ("readtty: write failed");
-      return FATAL_ERROR;
-    }
-
-  return READ_MORE;
-}
-
-static int
-minitelnet (void)
-{
-  fd_set input;			/* file descriptors for select */
-  int tablesize;		/* max number of FDs for select */
-  int status;
-  int quit_count = 0;
-
-  escape_count = 0;
-  echo_check = -1;
-
-  tablesize = 8 * sizeof (input);
-
-  for (;;)
-    {
-      /* Check for anything from our socket - doesn't block. Note that
-         this must be done *before* the select as there may be
-         buffered I/O waiting to be processed.  */
-
-      if ((status = readsocket ()) == FATAL_ERROR)
-	{
-	  error ("Debugging terminated by communications error");
-	}
-      else if (status != READ_MORE)
-	{
-	  return (status);
-	}
-
-      fflush (stdout);		/* Flush output before blocking */
-
-      /* Now block on more socket input or TTY input */
-
-      FD_ZERO (&input);
-      FD_SET (fileno (stdin), &input);
-      FD_SET (deprecated_serial_fd (remote_desc), &input);
-
-      status = select (tablesize, &input, 0, 0, 0);
-      if ((status == -1) && (errno != EINTR))
-	{
-	  error ("Communications error on select %d", errno);
-	}
-
-      /* Handle Control-C typed */
-
-      if (quit_flag)
-	{
-	  if ((++quit_count) == 2)
-	    {
-	      if (query ("Interrupt GDB? "))
-		{
-		  printf_filtered ("Interrupted by user.\n");
-		  throw_exception (RETURN_QUIT);
-		}
-	      quit_count = 0;
-	    }
-	  quit_flag = 0;
-
-	  if (remote_break)
-	    serial_send_break (remote_desc);
-	  else
-	    serial_write (remote_desc, "\003", 1);
-
-	  continue;
-	}
-
-      /* Handle console input */
-
-      if (FD_ISSET (fileno (stdin), &input))
-	{
-	  quit_count = 0;
-	  echo_check = 0;
-	  status = readtty ();
-	  if (status == READ_MORE)
-	    continue;
-
-	  return status;	/* telnet session ended */
-	}
-    }
-}
-
-static ptid_t
-remote_cisco_wait (ptid_t ptid, struct target_waitstatus *status)
-{
-  if (minitelnet () != ENTER_DEBUG)
-    {
-      error ("Debugging session terminated by protocol error");
-    }
-  putpkt ("?");
-  return remote_wait (ptid, status);
-}
-
-static void
-init_remote_cisco_ops (void)
-{
-  remote_cisco_ops.to_shortname = "cisco";
-  remote_cisco_ops.to_longname = "Remote serial target in cisco-specific protocol";
-  remote_cisco_ops.to_doc =
-    "Use a remote machine via TCP, using a cisco-specific protocol.\n\
-Specify the serial device it is connected to (e.g. host:2020).";
-  remote_cisco_ops.to_open = remote_cisco_open;
-  remote_cisco_ops.to_close = remote_cisco_close;
-  remote_cisco_ops.to_detach = remote_detach;
-  remote_cisco_ops.to_disconnect = remote_disconnect;
-  remote_cisco_ops.to_resume = remote_resume;
-  remote_cisco_ops.to_wait = remote_cisco_wait;
-  remote_cisco_ops.to_fetch_registers = remote_fetch_registers;
-  remote_cisco_ops.to_store_registers = remote_store_registers;
-  remote_cisco_ops.to_prepare_to_store = remote_prepare_to_store;
-  remote_cisco_ops.to_xfer_memory = remote_xfer_memory;
-  remote_cisco_ops.to_files_info = remote_files_info;
-  remote_cisco_ops.to_insert_breakpoint = remote_insert_breakpoint;
-  remote_cisco_ops.to_remove_breakpoint = remote_remove_breakpoint;  
-  remote_cisco_ops.to_remove_hw_breakpoint = remote_remove_hw_breakpoint;
-  remote_cisco_ops.to_insert_hw_breakpoint = remote_insert_hw_breakpoint;
-  remote_cisco_ops.to_insert_watchpoint = remote_insert_watchpoint;
-  remote_cisco_ops.to_remove_watchpoint = remote_remove_watchpoint;
-  remote_cisco_ops.to_stopped_by_watchpoint = remote_stopped_by_watchpoint;
-  remote_cisco_ops.to_stopped_data_address = remote_stopped_data_address;
-  remote_cisco_ops.to_can_use_hw_breakpoint = remote_check_watch_resources;
-  remote_cisco_ops.to_kill = remote_kill;
-  remote_cisco_ops.to_load = generic_load;
-  remote_cisco_ops.to_mourn_inferior = remote_cisco_mourn;
-  remote_cisco_ops.to_thread_alive = remote_thread_alive;
-  remote_cisco_ops.to_find_new_threads = remote_threads_info;
-  remote_cisco_ops.to_pid_to_str = remote_pid_to_str;
-  remote_cisco_ops.to_extra_thread_info = remote_threads_extra_info;
-  remote_cisco_ops.to_stratum = process_stratum;
-  remote_cisco_ops.to_has_all_memory = 1;
-  remote_cisco_ops.to_has_memory = 1;
-  remote_cisco_ops.to_has_stack = 1;
-  remote_cisco_ops.to_has_registers = 1;
-  remote_cisco_ops.to_has_execution = 1;
-  remote_cisco_ops.to_magic = OPS_MAGIC;
-}
-
 static int
 remote_can_async_p (void)
 {
@@ -6098,9 +5434,6 @@
   init_extended_async_remote_ops ();
   add_target (&extended_async_remote_ops);
 
-  init_remote_cisco_ops ();
-  add_target (&remote_cisco_ops);
-
   /* Hook into new objfile notification.  */
   remote_new_objfile_chain = target_new_objfile_hook;
   target_new_objfile_hook  = remote_new_objfile;
@@ -6213,9 +5546,6 @@
 		  "Set binary downloads.\n", &setlist),
      &showlist);
 #endif
-
-  add_info ("remote-process", remote_info_process,
-	    "Query the remote system for process info.");
 
   add_packet_config_cmd (&remote_protocol_vcont,
 			 "vCont", "verbose-resume",
Index: doc/gdb.texinfo
===================================================================
RCS file: /cvs/src/src/gdb/doc/gdb.texinfo,v
retrieving revision 1.185
diff -u -r1.185 gdb.texinfo
--- doc/gdb.texinfo	28 Oct 2003 22:04:47 -0000	1.185
+++ doc/gdb.texinfo	5 Jan 2004 20:53:15 -0000
@@ -19456,10 +19456,6 @@
 characters @samp{$}, @samp{#}, @samp{+} and @samp{-} or with a numeric
 value greater than 126 should not be used.
 
-Some remote systems have used a different run-length encoding mechanism
-loosely refered to as the cisco encoding.  Following the @samp{*}
-character are two hex digits that indicate the size of the packet.
-
 So:
 @smallexample
 "@code{0* }"
@@ -20128,15 +20124,6 @@
 @item X@var{AA}
 
 The process terminated with signal @var{AA}.
-
-@item N@var{AA};@var{t@dots{}};@var{d@dots{}};@var{b@dots{}} @strong{(obsolete)}
-
-@var{AA} = signal number; @var{t@dots{}} = address of symbol
-@code{_start}; @var{d@dots{}} = base of data section; @var{b@dots{}} =
-base of bss section.  @emph{Note: only used by Cisco Systems targets.
-The difference between this reply and the @samp{qOffsets} query is that
-the @samp{N} packet may arrive spontaneously whereas the @samp{qOffsets}
-is a query initiated by the host debugger.}
 
 @item O@var{XX@dots{}}
 

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