Initial creation of sourceware repositorygdb-4_18-branchpoint

1 files changed, 852 insertions, 0 deletions

diff --git a/gdb/remote-nindy.c b/gdb/remote-nindy.c
new file mode 100644
index 0000000..58e89b8
--- /dev/null
+++ b/gdb/remote-nindy.c
@@ -0,0 +1,852 @@
+/* Memory-access and commands for remote NINDY process, for GDB.
+   Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
+   Contributed by Intel Corporation.  Modified from remote.c by Chris Benenati.
+
+GDB is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY.  No author or distributor accepts responsibility to anyone
+for the consequences of using it or for whether it serves any
+particular purpose or works at all, unless he says so in writing.
+Refer to the GDB General Public License for full details.
+
+Everyone is granted permission to copy, modify and redistribute GDB,
+but only under the conditions described in the GDB General Public
+License.  A copy of this license is supposed to have been given to you
+along with GDB so you can know your rights and responsibilities.  It
+should be in a file named COPYING.  Among other things, the copyright
+notice and this notice must be preserved on all copies.
+
+In other words, go ahead and share GDB, but don't try to stop
+anyone else from sharing it farther.  Help stamp out software hoarding!
+*/
+
+/*
+Except for the data cache routines, this file bears little resemblence
+to remote.c.  A new (although similar) protocol has been specified, and
+portions of the code are entirely dependent on having an i80960 with a
+NINDY ROM monitor at the other end of the line.
+*/
+
+/*****************************************************************************
+ *
+ * REMOTE COMMUNICATION PROTOCOL BETWEEN GDB960 AND THE NINDY ROM MONITOR.
+ *
+ *
+ * MODES OF OPERATION
+ * ----- -- ---------
+ *	
+ * As far as NINDY is concerned, GDB is always in one of two modes: command
+ * mode or passthrough mode.
+ *
+ * In command mode (the default) pre-defined packets containing requests
+ * are sent by GDB to NINDY.  NINDY never talks except in reponse to a request.
+ *
+ * Once the the user program is started, GDB enters passthrough mode, to give
+ * the user program access to the terminal.  GDB remains in this mode until
+ * NINDY indicates that the program has stopped.
+ *
+ *
+ * PASSTHROUGH MODE
+ * ----------- ----
+ *
+ * GDB writes all input received from the keyboard directly to NINDY, and writes
+ * all characters received from NINDY directly to the monitor.
+ *
+ * Keyboard input is neither buffered nor echoed to the monitor.
+ *
+ * GDB remains in passthrough mode until NINDY sends a single ^P character,
+ * to indicate that the user process has stopped.
+ *
+ * Note:
+ *	GDB assumes NINDY performs a 'flushreg' when the user program stops.
+ *
+ *
+ * COMMAND MODE
+ * ------- ----
+ *
+ * All info (except for message ack and nak) is transferred between gdb
+ * and the remote processor in messages of the following format:
+ *
+ *		<info>#<checksum>
+ *
+ * where 
+ *	#	is a literal character
+ *
+ *	<info>	ASCII information;  all numeric information is in the
+ *		form of hex digits ('0'-'9' and lowercase 'a'-'f').
+ *
+ *	<checksum>
+ *		is a pair of ASCII hex digits representing an 8-bit
+ *		checksum formed by adding together each of the
+ *		characters in <info>.
+ *
+ * The receiver of a message always sends a single character to the sender
+ * to indicate that the checksum was good ('+') or bad ('-');  the sender
+ * re-transmits the entire message over until a '+' is received.
+ *
+ * In response to a command NINDY always sends back either data or
+ * a result code of the form "Xnn", where "nn" are hex digits and "X00"
+ * means no errors.  (Exceptions: the "s" and "c" commands don't respond.)
+ *
+ * SEE THE HEADER OF THE FILE "gdb.c" IN THE NINDY MONITOR SOURCE CODE FOR A
+ * FULL DESCRIPTION OF LEGAL COMMANDS.
+ *
+ * SEE THE FILE "stop.h" IN THE NINDY MONITOR SOURCE CODE FOR A LIST
+ * OF STOP CODES.
+ *
+ ***************************************************************************/
+
+#include "defs.h"
+#include <signal.h>
+#include <sys/types.h>
+#include <setjmp.h>
+
+#include "frame.h"
+#include "inferior.h"
+#include "bfd.h"
+#include "symfile.h"
+#include "target.h"
+#include "gdbcore.h"
+#include "command.h"
+#include "floatformat.h"
+
+#include "wait.h"
+#include <sys/file.h>
+#include <ctype.h>
+#include "serial.h"
+#include "nindy-share/env.h"
+#include "nindy-share/stop.h"
+
+#include "dcache.h"
+#include "remote-utils.h"
+
+static DCACHE *nindy_dcache;
+
+extern int unlink();
+extern char *getenv();
+extern char *mktemp();
+
+extern void generic_mourn_inferior ();
+
+extern struct target_ops nindy_ops;
+extern FILE *instream;
+
+extern char ninStopWhy ();
+extern int ninMemGet ();
+extern int ninMemPut ();
+
+int nindy_initial_brk;	/* nonzero if want to send an initial BREAK to nindy */
+int nindy_old_protocol;	/* nonzero if want to use old protocol */
+char *nindy_ttyname;	/* name of tty to talk to nindy on, or null */
+
+#define DLE	'\020'	/* Character NINDY sends to indicate user program has
+			 * halted.  */
+#define TRUE	1
+#define FALSE	0
+
+/* From nindy-share/nindy.c.  */
+extern serial_t nindy_serial;
+
+static int have_regs = 0;	/* 1 iff regs read since i960 last halted */
+static int regs_changed = 0;	/* 1 iff regs were modified since last read */
+
+extern char *exists();
+
+static void
+nindy_fetch_registers PARAMS ((int));
+
+static void
+nindy_store_registers PARAMS ((int));
+
+static char *savename;
+
+static void
+nindy_close (quitting)
+     int quitting;
+{
+  if (nindy_serial != NULL)
+    SERIAL_CLOSE (nindy_serial);
+  nindy_serial = NULL;
+
+  if (savename)
+    free (savename);
+  savename = 0;
+}
+
+/* Open a connection to a remote debugger.   
+   FIXME, there should be "set" commands for the options that are
+   now specified with gdb command-line options (old_protocol,
+   and initial_brk).  */
+void
+nindy_open (name, from_tty)
+    char *name;		/* "/dev/ttyXX", "ttyXX", or "XX": tty to be opened */
+    int from_tty;
+{
+  char baudrate[1024];
+
+  if (!name)
+    error_no_arg ("serial port device name");
+
+  target_preopen (from_tty);
+
+  nindy_close (0);
+
+  have_regs = regs_changed = 0;
+  nindy_dcache = dcache_init(ninMemGet, ninMemPut);
+
+  /* Allow user to interrupt the following -- we could hang if there's
+     no NINDY at the other end of the remote tty.  */
+  immediate_quit++;
+  /* If baud_rate is -1, then ninConnect will not recognize the baud rate
+     and will deal with the situation in a (more or less) reasonable
+     fashion.  */
+  sprintf(baudrate, "%d", baud_rate);
+  ninConnect(name, baudrate,
+	     nindy_initial_brk, !from_tty, nindy_old_protocol);
+  immediate_quit--;
+
+  if (nindy_serial == NULL)
+    {
+      perror_with_name (name);
+    }
+
+  savename = savestring (name, strlen (name));
+  push_target (&nindy_ops);
+
+  target_fetch_registers(-1);
+
+  init_thread_list ();
+  init_wait_for_inferior ();
+  clear_proceed_status ();
+  normal_stop ();
+}
+
+/* User-initiated quit of nindy operations.  */
+
+static void
+nindy_detach (name, from_tty)
+     char *name;
+     int from_tty;
+{
+  if (name)
+    error ("Too many arguments");
+  pop_target ();
+}
+
+static void
+nindy_files_info ()
+{
+  /* FIXME: this lies about the baud rate if we autobauded.  */
+  printf_unfiltered("\tAttached to %s at %d bits per second%s%s.\n", savename,
+	 baud_rate,
+	 nindy_old_protocol? " in old protocol": "",
+         nindy_initial_brk? " with initial break": "");
+}
+
+/* Return the number of characters in the buffer before
+   the first DLE character.  */
+
+static
+int
+non_dle( buf, n )
+    char *buf;		/* Character buffer; NOT '\0'-terminated */
+    int n;		/* Number of characters in buffer */
+{
+  int i;
+
+  for ( i = 0; i < n; i++ ){
+    if ( buf[i] == DLE ){
+      break;
+    }
+  }
+  return i;
+}
+
+/* Tell the remote machine to resume.  */
+
+void
+nindy_resume (pid, step, siggnal)
+     int pid, step;
+     enum target_signal siggnal;
+{
+  if (siggnal != TARGET_SIGNAL_0 && siggnal != stop_signal)
+    warning ("Can't send signals to remote NINDY targets.");
+
+  dcache_flush(nindy_dcache);
+  if ( regs_changed )
+    {
+      nindy_store_registers (-1);
+      regs_changed = 0;
+    }
+  have_regs = 0;
+  ninGo( step );
+}
+
+/* FIXME, we can probably use the normal terminal_inferior stuff here.
+   We have to do terminal_inferior and then set up the passthrough
+   settings initially.  Thereafter, terminal_ours and terminal_inferior
+   will automatically swap the settings around for us.  */
+
+struct clean_up_tty_args {
+  serial_ttystate state;
+  serial_t serial;
+};
+static  struct clean_up_tty_args tty_args;
+
+static void
+clean_up_tty (ptrarg)
+     PTR ptrarg;
+{
+  struct clean_up_tty_args *args = (struct clean_up_tty_args *) ptrarg;
+  SERIAL_SET_TTY_STATE (args->serial, args->state);
+  free (args->state);
+  warning ("\n\nYou may need to reset the 80960 and/or reload your program.\n");
+}
+
+/* Recover from ^Z or ^C while remote process is running */
+static void (*old_ctrlc)();  
+#ifdef SIGTSTP
+static void (*old_ctrlz)();
+#endif
+
+static void
+clean_up_int()
+{
+  SERIAL_SET_TTY_STATE (tty_args.serial, tty_args.state);
+  free (tty_args.state);
+
+  signal(SIGINT, old_ctrlc);
+#ifdef SIGTSTP
+  signal(SIGTSTP, old_ctrlz);
+#endif
+  error("\n\nYou may need to reset the 80960 and/or reload your program.\n");
+}
+
+/* Wait until the remote machine stops. While waiting, operate in passthrough
+ * mode; i.e., pass everything NINDY sends to gdb_stdout, and everything from
+ * stdin to NINDY.
+ *
+ * Return to caller, storing status in 'status' just as `wait' would.
+ */
+
+static int
+nindy_wait( pid, status )
+    int pid;
+    struct target_waitstatus *status;
+{
+  fd_set fds;
+  int c;
+  char buf[2];
+  int i, n;
+  unsigned char stop_exit;
+  unsigned char stop_code;
+  struct cleanup *old_cleanups;
+  long ip_value, fp_value, sp_value;	/* Reg values from stop */
+
+  status->kind = TARGET_WAITKIND_EXITED;
+  status->value.integer = 0;
+
+  /* OPERATE IN PASSTHROUGH MODE UNTIL NINDY SENDS A DLE CHARACTER */
+
+  /* Save current tty attributes, and restore them when done.  */
+  tty_args.serial = SERIAL_FDOPEN (0);
+  tty_args.state = SERIAL_GET_TTY_STATE (tty_args.serial);
+  old_ctrlc = signal( SIGINT, clean_up_int );
+#ifdef SIGTSTP
+  old_ctrlz = signal( SIGTSTP, clean_up_int );
+#endif
+
+  old_cleanups = make_cleanup (clean_up_tty, &tty_args);
+
+  /* Pass input from keyboard to NINDY as it arrives.  NINDY will interpret
+     <CR> and perform echo.  */
+  /* This used to set CBREAK and clear ECHO and CRMOD.  I hope this is close
+     enough.  */
+  SERIAL_RAW (tty_args.serial);
+
+  while (1)
+    {
+      /* Input on remote */
+      c = SERIAL_READCHAR (nindy_serial, -1);
+      if (c == SERIAL_ERROR)
+	{
+	  error ("Cannot read from serial line");
+	}
+      else if (c == 0x1b) /* ESC */
+	{
+	  c = SERIAL_READCHAR (nindy_serial, -1);
+	  c &= ~0x40;
+	} 
+      else if (c != 0x10) /* DLE */
+	/* Write out any characters preceding DLE */
+	{
+	  buf[0] = (char)c;
+	  write (1, buf, 1);
+	}
+      else
+	{
+	  stop_exit = ninStopWhy(&stop_code,
+				 &ip_value, &fp_value, &sp_value);
+	  if (!stop_exit && (stop_code == STOP_SRQ))
+	    {
+	      immediate_quit++;
+	      ninSrq();
+	      immediate_quit--;
+	    }
+	  else
+	    {
+	      /* Get out of loop */
+	      supply_register (IP_REGNUM, 
+			       (char *)&ip_value);
+	      supply_register (FP_REGNUM, 
+			       (char *)&fp_value);
+	      supply_register (SP_REGNUM, 
+			       (char *)&sp_value);
+	      break;
+	    }
+	}
+    }
+
+  SERIAL_SET_TTY_STATE (tty_args.serial, tty_args.state);
+  free (tty_args.state);
+  discard_cleanups (old_cleanups);
+
+  if (stop_exit)
+    {
+      status->kind = TARGET_WAITKIND_EXITED;
+      status->value.integer = stop_code;
+    }
+  else
+    {
+      /* nindy has some special stop code need to be handled */
+      if (stop_code == STOP_GDB_BPT)
+	stop_code = TRACE_STEP;
+      status->kind = TARGET_WAITKIND_STOPPED;
+      status->value.sig = i960_fault_to_signal (stop_code);
+    }
+  return inferior_pid;
+}
+
+/* Read the remote registers into the block REGS.  */
+
+/* This is the block that ninRegsGet and ninRegsPut handles.  */
+struct nindy_regs {
+  char	local_regs[16 * 4];
+  char	global_regs[16 * 4];
+  char	pcw_acw[2 * 4];
+  char	ip[4];
+  char	tcw[4];
+  char	fp_as_double[4 * 8];
+};
+
+static void
+nindy_fetch_registers(regno)
+     int regno;
+{
+  struct nindy_regs nindy_regs;
+  int regnum;
+
+  immediate_quit++;
+  ninRegsGet( (char *) &nindy_regs );
+  immediate_quit--;
+
+  memcpy (&registers[REGISTER_BYTE (R0_REGNUM)], nindy_regs.local_regs, 16*4);
+  memcpy (&registers[REGISTER_BYTE (G0_REGNUM)], nindy_regs.global_regs, 16*4);
+  memcpy (&registers[REGISTER_BYTE (PCW_REGNUM)], nindy_regs.pcw_acw, 2*4);
+  memcpy (&registers[REGISTER_BYTE (IP_REGNUM)], nindy_regs.ip, 1*4);
+  memcpy (&registers[REGISTER_BYTE (TCW_REGNUM)], nindy_regs.tcw, 1*4);
+  memcpy (&registers[REGISTER_BYTE (FP0_REGNUM)], nindy_regs.fp_as_double, 4 * 8);
+
+  registers_fetched ();
+}
+
+static void
+nindy_prepare_to_store()
+{
+  /* Fetch all regs if they aren't already here.  */
+  read_register_bytes (0, NULL, REGISTER_BYTES);
+}
+
+static void
+nindy_store_registers(regno)
+     int regno;
+{
+  struct nindy_regs nindy_regs;
+  int regnum;
+
+  memcpy (nindy_regs.local_regs, &registers[REGISTER_BYTE (R0_REGNUM)], 16*4);
+  memcpy (nindy_regs.global_regs, &registers[REGISTER_BYTE (G0_REGNUM)], 16*4);
+  memcpy (nindy_regs.pcw_acw, &registers[REGISTER_BYTE (PCW_REGNUM)], 2*4);
+  memcpy (nindy_regs.ip, &registers[REGISTER_BYTE (IP_REGNUM)], 1*4);
+  memcpy (nindy_regs.tcw, &registers[REGISTER_BYTE (TCW_REGNUM)], 1*4);
+  memcpy (nindy_regs.fp_as_double, &registers[REGISTER_BYTE (FP0_REGNUM)], 8*4);
+
+  immediate_quit++;
+  ninRegsPut( (char *) &nindy_regs );
+  immediate_quit--;
+}
+
+/* Read a word from remote address ADDR and return it.
+ * This goes through the data cache.
+ */
+int
+nindy_fetch_word (addr)
+     CORE_ADDR addr;
+{
+	return dcache_fetch (nindy_dcache, addr);
+}
+
+/* Write a word WORD into remote address ADDR.
+   This goes through the data cache.  */
+
+void
+nindy_store_word (addr, word)
+     CORE_ADDR addr;
+     int word;
+{
+	dcache_poke (nindy_dcache, addr, word);
+}
+
+/* Copy LEN bytes to or from inferior's memory starting at MEMADDR
+   to debugger memory starting at MYADDR.   Copy to inferior if
+   WRITE is nonzero.  Returns the length copied.
+
+   This is stolen almost directly from infptrace.c's child_xfer_memory,
+   which also deals with a word-oriented memory interface.  Sometime,
+   FIXME, rewrite this to not use the word-oriented routines.  */
+
+int
+nindy_xfer_inferior_memory(memaddr, myaddr, len, should_write, target)
+     CORE_ADDR memaddr;
+     char *myaddr;
+     int len;
+     int should_write;
+     struct target_ops *target;			/* ignored */
+{
+  register int i;
+  /* Round starting address down to longword boundary.  */
+  register CORE_ADDR addr = memaddr & - sizeof (int);
+  /* Round ending address up; get number of longwords that makes.  */
+  register int count
+    = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int);
+  /* Allocate buffer of that many longwords.  */
+  register int *buffer = (int *) alloca (count * sizeof (int));
+
+  if (should_write)
+    {
+      /* Fill start and end extra bytes of buffer with existing memory data.  */
+
+      if (addr != memaddr || len < (int)sizeof (int)) {
+	/* Need part of initial word -- fetch it.  */
+        buffer[0] = nindy_fetch_word (addr);
+      }
+
+      if (count > 1)		/* FIXME, avoid if even boundary */
+	{
+	  buffer[count - 1]
+	    = nindy_fetch_word (addr + (count - 1) * sizeof (int));
+	}
+
+      /* Copy data to be written over corresponding part of buffer */
+
+      memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len);
+
+      /* Write the entire buffer.  */
+
+      for (i = 0; i < count; i++, addr += sizeof (int))
+	{
+	  errno = 0;
+	  nindy_store_word (addr, buffer[i]);
+	  if (errno)
+	    return 0;
+	}
+    }
+  else
+    {
+      /* Read all the longwords */
+      for (i = 0; i < count; i++, addr += sizeof (int))
+	{
+	  errno = 0;
+	  buffer[i] = nindy_fetch_word (addr);
+	  if (errno)
+	    return 0;
+	  QUIT;
+	}
+
+      /* Copy appropriate bytes out of the buffer.  */
+      memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len);
+    }
+  return len;
+}
+
+static void
+nindy_create_inferior (execfile, args, env)
+     char *execfile;
+     char *args;
+     char **env;
+{
+  int entry_pt;
+  int pid;
+
+  if (args && *args)
+    error ("Can't pass arguments to remote NINDY process");
+
+  if (execfile == 0 || exec_bfd == 0)
+    error ("No executable file specified");
+
+  entry_pt = (int) bfd_get_start_address (exec_bfd);
+
+  pid = 42;
+
+  /* The "process" (board) is already stopped awaiting our commands, and
+     the program is already downloaded.  We just set its PC and go.  */
+
+  inferior_pid = pid;		/* Needed for wait_for_inferior below */
+
+  clear_proceed_status ();
+
+  /* Tell wait_for_inferior that we've started a new process.  */
+  init_wait_for_inferior ();
+
+  /* Set up the "saved terminal modes" of the inferior
+     based on what modes we are starting it with.  */
+  target_terminal_init ();
+
+  /* Install inferior's terminal modes.  */
+  target_terminal_inferior ();
+
+  /* insert_step_breakpoint ();  FIXME, do we need this?  */
+  /* Let 'er rip... */
+  proceed ((CORE_ADDR)entry_pt, TARGET_SIGNAL_DEFAULT, 0);
+}
+
+static void
+reset_command(args, from_tty)
+     char *args;
+     int from_tty;
+{
+  if (nindy_serial == NULL)
+    {
+      error( "No target system to reset -- use 'target nindy' command.");
+    }
+  if ( query("Really reset the target system?",0,0) )
+    {
+      SERIAL_SEND_BREAK (nindy_serial);
+      tty_flush (nindy_serial);
+    }
+}
+
+void
+nindy_kill (args, from_tty)
+     char *args;
+     int from_tty;
+{
+  return;		/* Ignore attempts to kill target system */
+}
+
+/* Clean up when a program exits.
+
+   The program actually lives on in the remote processor's RAM, and may be
+   run again without a download.  Don't leave it full of breakpoint
+   instructions.  */
+
+void
+nindy_mourn_inferior ()
+{
+  remove_breakpoints ();
+  unpush_target (&nindy_ops);
+  generic_mourn_inferior ();	/* Do all the proper things now */
+}
+
+/* Pass the args the way catch_errors wants them.  */
+static int
+nindy_open_stub (arg)
+     char *arg;
+{
+  nindy_open (arg, 1);
+  return 1;
+}
+
+static void
+nindy_load( filename, from_tty )
+    char *filename;
+    int from_tty;
+{
+  asection *s;
+  /* Can't do unix style forking on a VMS system, so we'll use bfd to do
+     all the work for us
+     */
+
+  bfd *file = bfd_openr(filename,0);
+  if (!file)
+  {
+    perror_with_name(filename);
+    return;
+  }
+
+  if (!bfd_check_format(file, bfd_object))
+  {
+    error("can't prove it's an object file\n");
+    return;
+  }
+ 
+  for ( s = file->sections; s; s=s->next)
+  {
+    if (s->flags & SEC_LOAD)
+    {
+      char *buffer = xmalloc(s->_raw_size);
+      bfd_get_section_contents(file, s, buffer, 0, s->_raw_size);
+      printf("Loading section %s, size %x vma %x\n",
+             s->name,
+             s->_raw_size,
+             s->vma);
+      ninMemPut(s->vma, buffer, s->_raw_size);
+      free(buffer);
+    }
+  }
+  bfd_close(file);
+}
+
+static int
+load_stub (arg)
+     char *arg;
+{
+  target_load (arg, 1);
+  return 1;
+}
+
+/* This routine is run as a hook, just before the main command loop is
+   entered.  If gdb is configured for the i960, but has not had its
+   nindy target specified yet, this will loop prompting the user to do so.
+
+   Unlike the loop provided by Intel, we actually let the user get out
+   of this with a RETURN.  This is useful when e.g. simply examining
+   an i960 object file on the host system.  */
+
+void
+nindy_before_main_loop ()
+{
+  char ttyname[100];
+  char *p, *p2;
+
+  while (target_stack->target_ops != &nindy_ops) /* What is this crap??? */
+    {				/* remote tty not specified yet */
+	if ( instream == stdin ){
+		printf_unfiltered("\nAttach /dev/ttyNN -- specify NN, or \"quit\" to quit:  ");
+		gdb_flush( gdb_stdout );
+	}
+	fgets( ttyname, sizeof(ttyname)-1, stdin );
+
+	/* Strip leading and trailing whitespace */
+	for ( p = ttyname; isspace(*p); p++ ){
+		;
+	}
+	if ( *p == '\0' ){
+		return;		/* User just hit spaces or return, wants out */
+	}
+	for ( p2= p; !isspace(*p2) && (*p2 != '\0'); p2++ ){
+		;
+	}
+	*p2= '\0';
+	if ( STREQ("quit",p) ){
+		exit(1);
+	}
+
+	if (catch_errors (nindy_open_stub, p, "", RETURN_MASK_ALL))
+	  {
+	    /* Now that we have a tty open for talking to the remote machine,
+	       download the executable file if one was specified.  */
+	    if (exec_bfd)
+	      {
+		catch_errors (load_stub, bfd_get_filename (exec_bfd), "",
+			      RETURN_MASK_ALL);
+	      }
+	  }
+      }
+}
+
+/* Define the target subroutine names */
+
+struct target_ops nindy_ops ;
+
+static void 
+init_nindy_ops(void)
+{
+  nindy_ops.to_shortname =   "nindy"; "Remote serial target in i960 NINDY-specific protocol",
+					nindy_ops.to_longname =   "Use a remote i960 system running NINDY connected by a serial line.\n\
+Specify the name of the device the serial line is connected to.\n\
+The speed (baud rate), whether to use the old NINDY protocol,\n\
+and whether to send a break on startup, are controlled by options\n\
+specified when you started GDB." ;
+  nindy_ops.to_doc =   "";
+  nindy_ops.to_open =   nindy_open;
+  nindy_ops.to_close =   nindy_close;
+  nindy_ops.to_attach =   0;
+  nindy_ops.to_post_attach = NULL;
+  nindy_ops.to_require_attach = NULL;
+  nindy_ops.to_detach =   nindy_detach;
+  nindy_ops.to_require_detach = NULL;
+  nindy_ops.to_resume =   nindy_resume;
+  nindy_ops.to_wait  =   nindy_wait;
+  nindy_ops.to_post_wait = NULL;
+  nindy_ops.to_fetch_registers  =   nindy_fetch_registers;
+  nindy_ops.to_store_registers  =   nindy_store_registers;
+  nindy_ops.to_prepare_to_store =   nindy_prepare_to_store;
+  nindy_ops.to_xfer_memory  =   nindy_xfer_inferior_memory;
+  nindy_ops.to_files_info  =   nindy_files_info;
+  nindy_ops.to_insert_breakpoint =   memory_insert_breakpoint;
+  nindy_ops.to_remove_breakpoint =   memory_remove_breakpoint;
+  nindy_ops.to_terminal_init  =   0;
+  nindy_ops.to_terminal_inferior =   0;
+  nindy_ops.to_terminal_ours_for_output =   0;
+  nindy_ops.to_terminal_ours  =   0;
+  nindy_ops.to_terminal_info  =   0;	/* Terminal crud */
+  nindy_ops.to_kill  =   nindy_kill;
+  nindy_ops.to_load  =   nindy_load;
+  nindy_ops.to_lookup_symbol =   0; /* lookup_symbol */
+  nindy_ops.to_create_inferior =   nindy_create_inferior;
+  nindy_ops.to_post_startup_inferior = NULL;
+  nindy_ops.to_acknowledge_created_inferior = NULL;
+  nindy_ops.to_clone_and_follow_inferior = NULL;
+  nindy_ops.to_post_follow_inferior_by_clone = NULL;
+  nindy_ops.to_insert_fork_catchpoint = NULL;
+  nindy_ops.to_remove_fork_catchpoint = NULL;
+  nindy_ops.to_insert_vfork_catchpoint = NULL;
+  nindy_ops.to_remove_vfork_catchpoint = NULL;
+  nindy_ops.to_has_forked = NULL;
+  nindy_ops.to_has_vforked = NULL;
+  nindy_ops.to_can_follow_vfork_prior_to_exec = NULL;
+  nindy_ops.to_post_follow_vfork = NULL;
+  nindy_ops.to_insert_exec_catchpoint = NULL;
+  nindy_ops.to_remove_exec_catchpoint = NULL;
+  nindy_ops.to_has_execd = NULL;
+  nindy_ops.to_reported_exec_events_per_exec_call = NULL;
+  nindy_ops.to_has_exited = NULL;
+  nindy_ops.to_mourn_inferior =   nindy_mourn_inferior;
+  nindy_ops.to_can_run  =   0;		/* can_run */
+  nindy_ops.to_notice_signals =   0; /* notice_signals */
+  nindy_ops.to_thread_alive  =   0;			/* to_thread_alive */
+  nindy_ops.to_stop  =   0;			/* to_stop */
+  nindy_ops.to_pid_to_exec_file = NULL;
+  nindy_ops.to_core_file_to_sym_file = NULL;
+  nindy_ops.to_stratum =   process_stratum;
+  nindy_ops.DONT_USE =   0; /* next */
+  nindy_ops.to_has_all_memory =   1;
+  nindy_ops.to_has_memory =   1;
+  nindy_ops.to_has_stack =   1;
+  nindy_ops.to_has_registers =   1;
+  nindy_ops.to_has_execution =   1;	/* all mem, mem, stack, regs, exec */
+  nindy_ops.to_sections =   0;
+  nindy_ops.to_sections_end =   0;			/* Section pointers */
+  nindy_ops.to_magic =   OPS_MAGIC;		/* Always the last thing */
+}
+
+void
+_initialize_nindy ()
+{
+  init_nindy_ops() ;
+  add_target (&nindy_ops);
+  add_com ("reset", class_obscure, reset_command,
+	   "Send a 'break' to the remote target system.\n\
+Only useful if the target has been equipped with a circuit\n\
+to perform a hard reset when a break is detected.");
+}