Initial creation of sourceware repository

1 files changed, 0 insertions, 1497 deletions

diff --git a/gdb/remote-array.c b/gdb/remote-array.c
deleted file mode 100644
index 624871c..0000000
--- a/gdb/remote-array.c
+++ /dev/null
@@ -1,1497 +0,0 @@
-/* Remote debugging interface for Array Tech RAID controller..
-   Copyright 90, 91, 92, 93, 94, 1995, 1998  Free Software Foundation, Inc.
-   Contributed by Cygnus Support. Written by Rob Savoye for Cygnus.
-
-   This module talks to a debug monitor called 'MONITOR', which
-   We communicate with MONITOR via either a direct serial line, or a TCP
-   (or possibly TELNET) stream to a terminal multiplexor,
-   which in turn talks to the target board.
-
-  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 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.
- */
-
-#include "defs.h"
-#include "gdbcore.h"
-#include "target.h"
-#include "wait.h"
-#ifdef ANSI_PROTOTYPES
-#include <stdarg.h>
-#else
-#include <varargs.h>
-#endif
-#include <ctype.h>
-#include <signal.h>
-#include <sys/types.h>
-#include "gdb_string.h"
-#include "command.h"
-#include "serial.h"
-#include "monitor.h"
-#include "remote-utils.h"
-
-extern int baud_rate;
-
-#define ARRAY_PROMPT ">> "
-
-#define SWAP_TARGET_AND_HOST(buffer,len) 				\
-  do									\
-    {									\
-      if (TARGET_BYTE_ORDER != HOST_BYTE_ORDER)				\
-	{								\
-	  char tmp;							\
-	  char *p = (char *)(buffer);					\
-	  char *q = ((char *)(buffer)) + len - 1;		   	\
-	  for (; p < q; p++, q--)				 	\
-	    {								\
-	      tmp = *q;							\
-	      *q = *p;							\
-	      *p = tmp;							\
-	    }								\
-	}								\
-    }									\
-  while (0)
-
-static void debuglogs PARAMS((int, char *, ...));
-static void array_open();
-static void array_close();
-static void array_detach();
-static void array_attach();
-static void array_resume();
-static void array_fetch_register();
-static void array_store_register();
-static void array_fetch_registers();
-static void array_store_registers();
-static void array_prepare_to_store();
-static void array_files_info();
-static void array_kill();
-static void array_create_inferior();
-static void array_mourn_inferior();
-static void make_gdb_packet();
-static int array_xfer_memory();
-static int array_wait();
-static int array_insert_breakpoint();
-static int array_remove_breakpoint();
-static int tohex();
-static int to_hex();
-static int from_hex();
-static int array_send_packet();
-static int array_get_packet();
-static unsigned long ascii2hexword();
-static void hexword2ascii();
-
-extern char *version;
-
-#define LOG_FILE "monitor.log"
-#if defined (LOG_FILE)
-FILE *log_file;
-#endif
-
-static int timeout = 30;
-/* Having this larger than 400 causes us to be incompatible with m68k-stub.c
-   and i386-stub.c.  Normally, no one would notice because it only matters
-   for writing large chunks of memory (e.g. in downloads).  Also, this needs
-   to be more than 400 if required to hold the registers (see below, where
-   we round it up based on REGISTER_BYTES).  */
-#define PBUFSIZ 400
-
-/* 
- * Descriptor for I/O to remote machine.  Initialize it to NULL so that
- * array_open knows that we don't have a file open when the program starts.
- */
-serial_t array_desc = NULL;
-
-/*
- * this array of registers need to match the indexes used by GDB. The
- * whole reason this exists is cause the various ROM monitors use
- * different strings than GDB does, and doesn't support all the
- * registers either. So, typing "info reg sp" becomes a "r30".
- */
-extern char *tmp_mips_processor_type;
-extern int mips_set_processor_type();
-
-static struct target_ops array_ops ;
-
-static void 
-init_array_ops(void)
-{
-  array_ops.to_shortname =   "array";	
-  array_ops.to_longname = 		
-    "Debug using the standard GDB remote protocol for the Array Tech target.",
-    array_ops.to_doc = 			
-    "Debug using the standard GDB remote protocol for the Array Tech target.\n\
-Specify the serial device it is connected to (e.g. /dev/ttya)." ;
-  array_ops.to_open =   array_open;	
-  array_ops.to_close =   array_close;	
-  array_ops.to_attach =   NULL;
-  array_ops.to_post_attach = NULL;		
-  array_ops.to_require_attach = NULL;
-  array_ops.to_detach =   array_detach;	
-  array_ops.to_require_detach = NULL;
-  array_ops.to_resume =   array_resume;	
-  array_ops.to_wait  =   array_wait;	
-  array_ops.to_post_wait = NULL;
-  array_ops.to_fetch_registers  =   array_fetch_registers;
-  array_ops.to_store_registers  =   array_store_registers;
-  array_ops.to_prepare_to_store =   array_prepare_to_store;
-  array_ops.to_xfer_memory  =   array_xfer_memory;		
-  array_ops.to_files_info  =   array_files_info;		
-  array_ops.to_insert_breakpoint =   array_insert_breakpoint;	
-  array_ops.to_remove_breakpoint =   array_remove_breakpoint;	
-  array_ops.to_terminal_init  =   0;				
-  array_ops.to_terminal_inferior =   0;				
-  array_ops.to_terminal_ours_for_output =   0;			
-  array_ops.to_terminal_ours  =   0;				
-  array_ops.to_terminal_info  =   0;				
-  array_ops.to_kill  =   array_kill;		
-  array_ops.to_load  =   0;			
-  array_ops.to_lookup_symbol =   0;		
-  array_ops.to_create_inferior =   array_create_inferior;	
-  array_ops.to_post_startup_inferior = NULL;
-  array_ops.to_acknowledge_created_inferior = NULL;
-  array_ops.to_clone_and_follow_inferior = NULL;          
-  array_ops.to_post_follow_inferior_by_clone = NULL;  
-  array_ops.to_insert_fork_catchpoint = NULL;
-  array_ops.to_remove_fork_catchpoint = NULL;
-  array_ops.to_insert_vfork_catchpoint = NULL;
-  array_ops.to_remove_vfork_catchpoint = NULL;                      
-  array_ops.to_has_forked = NULL;
-  array_ops.to_has_vforked = NULL;            
-  array_ops.to_can_follow_vfork_prior_to_exec = NULL;            
-  array_ops.to_post_follow_vfork = NULL;
-  array_ops.to_insert_exec_catchpoint = NULL;
-  array_ops.to_remove_exec_catchpoint = NULL;
-  array_ops.to_has_execd = NULL;
-  array_ops.to_reported_exec_events_per_exec_call = NULL;
-  array_ops.to_has_exited = NULL;
-  array_ops.to_mourn_inferior =   array_mourn_inferior;		
-  array_ops.to_can_run  =   0;		
-  array_ops.to_notice_signals =   0; 	
-  array_ops.to_thread_alive  =   0;	
-  array_ops.to_stop  =   0;
-  array_ops.to_pid_to_exec_file = NULL;
-  array_ops.to_core_file_to_sym_file = NULL;         
-  array_ops.to_stratum =   process_stratum;	
-  array_ops.DONT_USE =   0;			
-  array_ops.to_has_all_memory =   1;		
-  array_ops.to_has_memory =   1;		
-  array_ops.to_has_stack =   1;			
-  array_ops.to_has_registers =   1;		
-  array_ops.to_has_execution =   1;		
-  array_ops.to_sections =   0;			
-  array_ops.to_sections_end =   0;		
-  array_ops.to_magic =   OPS_MAGIC;		
-};
-
-/*
- * printf_monitor -- send data to monitor.  Works just like printf.
- */
-static void
-#ifdef ANSI_PROTOTYPES
-printf_monitor(char *pattern, ...)
-#else
-printf_monitor(va_alist)
-     va_dcl
-#endif
-{
-  va_list args;
-  char buf[PBUFSIZ];
-  int i;
-
-#ifdef ANSI_PROTOTYPES
-  va_start(args, pattern);
-#else
-  char *pattern;
-  va_start(args);
-  pattern = va_arg(args, char *);
-#endif
-
-  vsprintf(buf, pattern, args);
-
-  debuglogs (1, "printf_monitor(), Sending: \"%s\".", buf);
-
-  if (strlen(buf) > PBUFSIZ)
-    error ("printf_monitor(): string too long");
-  if (SERIAL_WRITE(array_desc, buf, strlen(buf)))
-    fprintf(stderr, "SERIAL_WRITE failed: %s\n", safe_strerror(errno));
-}
-/*
- * write_monitor -- send raw data to monitor.
- */
-static void
-write_monitor(data, len)
-     char data[];
-     int len;
-{
-  if (SERIAL_WRITE(array_desc, data, len))
-    fprintf(stderr, "SERIAL_WRITE failed: %s\n", safe_strerror(errno));
- 
-  *(data + len+1) = '\0';
-  debuglogs (1, "write_monitor(), Sending: \"%s\".", data);
-
-}
-
-/*
- * debuglogs -- deal with debugging info to multiple sources. This takes
- *	two real args, the first one is the level to be compared against 
- *	the sr_get_debug() value, the second arg is a printf buffer and args
- *	to be formatted and printed. A CR is added after each string is printed.
- */
-static void
-#ifdef ANSI_PROTOTYPES
-debuglogs(int level, char *pattern, ...)
-#else
-debuglogs(va_alist)
-     va_dcl
-#endif
-{
-  va_list args;
-  char *p;
-  unsigned char buf[PBUFSIZ];
-  char newbuf[PBUFSIZ];
-  int i;
-
-#ifdef ANSI_PROTOTYPES
-  va_start(args, pattern);
-#else
-  char *pattern;
-  int level;
-  va_start(args);
-  level = va_arg(args, int);			/* get the debug level */
-  pattern = va_arg(args, char *);		/* get the printf style pattern */
-#endif
-
-  if ((level <0) || (level > 100)) {
-    error ("Bad argument passed to debuglogs(), needs debug level");
-    return;
-  }
-      
-  vsprintf(buf, pattern, args);			/* format the string */
-  
-  /* convert some characters so it'll look right in the log */
-  p = newbuf;
-  for (i = 0 ; buf[i] != '\0'; i++) {
-    if (i > PBUFSIZ)
-      error ("Debug message too long");
-    switch (buf[i]) {
-    case '\n':					/* newlines */
-      *p++ = '\\';
-      *p++ = 'n';
-      continue;
-    case '\r':					/* carriage returns */
-      *p++ = '\\';
-      *p++ = 'r';
-      continue;
-    case '\033':				/* escape */
-      *p++ = '\\';
-      *p++ = 'e';
-      continue;
-    case '\t':					/* tab */
-      *p++ = '\\';
-      *p++ = 't';
-      continue;
-    case '\b':					/* backspace */
-      *p++ = '\\';
-      *p++ = 'b';
-      continue;
-    default:					/* no change */
-      *p++ = buf[i];
-    }
-
-    if (buf[i] < 26) {				/* modify control characters */
-      *p++ = '^';
-      *p++ = buf[i] + 'A';
-      continue;
-    }
-     if (buf[i] >= 128) {			/* modify control characters */
-      *p++ = '!';
-      *p++ = buf[i] + 'A';
-      continue;
-    }
- }
-  *p = '\0';					/* terminate the string */
-
-  if (sr_get_debug() > level)
-    printf_unfiltered ("%s\n", newbuf);
-
-#ifdef LOG_FILE					/* write to the monitor log */
-  if (log_file != 0x0) {
-    fputs (newbuf, log_file);
-    fputc ('\n', log_file);
-    fflush (log_file);
-  }
-#endif
-}
-
-/* readchar -- read a character from the remote system, doing all the fancy
- *	timeout stuff.
- */
-static int
-readchar(timeout)
-     int timeout;
-{
-  int c;
-
-  c = SERIAL_READCHAR(array_desc, abs(timeout));
-
-  if (sr_get_debug() > 5) {
-    putchar(c & 0x7f);
-    debuglogs (5, "readchar: timeout = %d\n", timeout);
-  }
-
-#ifdef LOG_FILE
-  if (isascii (c))
-    putc(c & 0x7f, log_file);
-#endif
-
-  if (c >= 0)
-    return c & 0x7f;
-
-  if (c == SERIAL_TIMEOUT) {
-    if (timeout <= 0)
-      return c;		/* Polls shouldn't generate timeout errors */
-    error("Timeout reading from remote system.");
-#ifdef LOG_FILE
-      fputs ("ERROR: Timeout reading from remote system", log_file);
-#endif
-  }
-  perror_with_name("readchar");
-}
-
-/* 
- * expect --  scan input from the remote system, until STRING is found.
- *	If DISCARD is non-zero, then discard non-matching input, else print
- *	it out. Let the user break out immediately.
- */
-static void
-expect (string, discard)
-     char *string;
-     int discard;
-{
-  char *p = string;
-  int c;
-
-
-  debuglogs (1, "Expecting \"%s\".", string);
-
-  immediate_quit = 1;
-  while (1) {
-    c = readchar(timeout);
-    if (!isascii (c))
-      continue;
-    if (c == *p++) {
-      if (*p == '\0') {
-	immediate_quit = 0;
-	debuglogs (4, "Matched");
-	return;
-      }
-    } else {
-      if (!discard) {
-	fputc_unfiltered (c, gdb_stdout);
-      }
-      p = string;
-    }
-  }
-}
-
-/* Keep discarding input until we see the MONITOR array_cmds->prompt.
-
-   The convention for dealing with the expect_prompt is that you
-   o give your command
-   o *then* wait for the expect_prompt.
-
-   Thus the last thing that a procedure does with the serial line
-   will be an expect_prompt().  Exception:  array_resume does not
-   wait for the expect_prompt, because the terminal is being handed over
-   to the inferior.  However, the next thing which happens after that
-   is a array_wait which does wait for the expect_prompt.
-   Note that this includes abnormal exit, e.g. error().  This is
-   necessary to prevent getting into states from which we can't
-   recover.  */
-static void
-expect_prompt(discard)
-     int discard;
-{
-  expect (ARRAY_PROMPT, discard);
-}
-
-/*
- * junk -- ignore junk characters. Returns a 1 if junk, 0 otherwise
- */
-static int
-junk(ch)
-     char ch;
-{
-  switch (ch) {
-  case '\0':
-  case ' ':
-  case '-':
-  case '\t':
-  case '\r':
-  case '\n':
-    if (sr_get_debug() > 5)
-      debuglogs (5, "Ignoring \'%c\'.", ch);
-    return 1;
-  default:
-    if (sr_get_debug() > 5)
-      debuglogs (5, "Accepting \'%c\'.", ch);
-    return 0;
-  }
-}
-
-/* 
- *  get_hex_digit -- Get a hex digit from the remote system & return its value.
- *		If ignore is nonzero, ignore spaces, newline & tabs.
- */
-static int
-get_hex_digit(ignore)
-     int ignore;
-{
-  static int ch;
-  while (1) {
-    ch = readchar(timeout);
-    if (junk(ch))
-      continue;
-    if (sr_get_debug() > 4) {
-      debuglogs (4, "get_hex_digit() got a 0x%x(%c)", ch, ch);
-    } else {
-#ifdef LOG_FILE					/* write to the monitor log */
-      if (log_file != 0x0) {
-	fputs ("get_hex_digit() got a 0x", log_file);
-	fputc (ch, log_file);
-	fputc ('\n', log_file);
-	fflush (log_file);
-      }
-#endif
-    }
-
-    if (ch >= '0' && ch <= '9')
-      return ch - '0';
-    else if (ch >= 'A' && ch <= 'F')
-      return ch - 'A' + 10;
-    else if (ch >= 'a' && ch <= 'f')
-      return ch - 'a' + 10;
-    else if (ch == ' ' && ignore)
-      ;
-    else {
-     expect_prompt(1);
-      debuglogs (4, "Invalid hex digit from remote system. (0x%x)", ch);
-      error("Invalid hex digit from remote system. (0x%x)", ch);
-    }
-  }
-}
-
-/* get_hex_byte -- Get a byte from monitor and put it in *BYT. 
- *	Accept any number leading spaces.
- */
-static void
-get_hex_byte (byt)
-     char *byt;
-{
-  int val;
-
-  val = get_hex_digit (1) << 4;
-  debuglogs (4, "get_hex_byte() -- Read first nibble 0x%x", val);
- 
-  val |= get_hex_digit (0);
-  debuglogs (4, "get_hex_byte() -- Read second nibble 0x%x", val);
-  *byt = val;
-  
-  debuglogs (4, "get_hex_byte() -- Read a 0x%x", val);
-}
-
-/* 
- * get_hex_word --  Get N 32-bit words from remote, each preceded by a space,
- *	and put them in registers starting at REGNO.
- */
-static int
-get_hex_word ()
-{
-  long val, newval;
-  int i;
-
-  val = 0;
-
-#if 0
-  if (HOST_BYTE_ORDER == BIG_ENDIAN) {
-#endif
-    for (i = 0; i < 8; i++)
-      val = (val << 4) + get_hex_digit (i == 0);
-#if 0
-  } else {
-    for (i = 7; i >= 0; i--)
-      val = (val << 4) + get_hex_digit (i == 0);
-  }
-#endif
-
-  debuglogs (4, "get_hex_word() got a 0x%x for a %s host.", val, (HOST_BYTE_ORDER == BIG_ENDIAN) ? "big endian" : "little endian");
-
-  return val;
-}
-
-/* This is called not only when we first attach, but also when the
-   user types "run" after having attached.  */
-static void
-array_create_inferior (execfile, args, env)
-     char *execfile;
-     char *args;
-     char **env;
-{
-  int entry_pt;
-
-  if (args && *args)
-    error("Can't pass arguments to remote MONITOR process");
-
-  if (execfile == 0 || exec_bfd == 0)
-    error("No executable file specified");
-
-  entry_pt = (int) bfd_get_start_address (exec_bfd);
-
-/* The "process" (board) is already stopped awaiting our commands, and
-   the program is already downloaded.  We just set its PC and go.  */
-
-  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);
-}
-
-/*
- * array_open -- open a connection to a remote debugger.
- *	NAME is the filename used for communication.
- */
-static int baudrate = 9600;
-static char dev_name[100];
-
-static void
-array_open(args, name, from_tty)
-     char *args;
-     char *name;
-     int from_tty;
-{
-  char packet[PBUFSIZ];
-
-  if (args == NULL)
-    error ("Use `target %s DEVICE-NAME' to use a serial port, or \n\
-`target %s HOST-NAME:PORT-NUMBER' to use a network connection.", name, name);
-
-/*  if (is_open) */
-    array_close(0);
-
-  target_preopen (from_tty);
-  unpush_target (&array_ops);
-
-  tmp_mips_processor_type = "lsi33k";	/* change the default from r3051 */
-  mips_set_processor_type_command ("lsi33k", 0);
-
-  strcpy(dev_name, args);
-  array_desc = SERIAL_OPEN(dev_name);
-
-  if (array_desc == NULL)
-    perror_with_name(dev_name);
-
-  if (baud_rate != -1) {
-    if (SERIAL_SETBAUDRATE (array_desc, baud_rate)) {
-      SERIAL_CLOSE (array_desc);
-      perror_with_name (name);
-    }
-  }
-  
-  SERIAL_RAW(array_desc);
-
-#if defined (LOG_FILE)
-  log_file = fopen (LOG_FILE, "w");
-  if (log_file == NULL)
-    perror_with_name (LOG_FILE);
-  fprintf (log_file, "GDB %s (%s", version);
-  fprintf (log_file, " --target %s)\n", array_ops.to_shortname);
-  fprintf (log_file, "Remote target %s connected to %s\n\n", array_ops.to_shortname, dev_name);
-#endif
-
-  /* see if the target is alive. For a ROM monitor, we can just try to force the
-     expect_prompt to print a few times. For the GDB remote protocol, the application
-     being debugged is sitting at a breakpoint and waiting for GDB to initialize
-     the connection. We force it to give us an empty packet to see if it's alive.
-     */
-    debuglogs (3, "Trying to ACK the target's debug stub");
-    /* unless your are on the new hardware, the old board won't initialize
-       because the '@' doesn't flush output like it does on the new ROMS.
-     */
-    printf_monitor ("@");	/* ask for the last signal */
-    expect_prompt(1);		/* See if we get a expect_prompt */
-#ifdef TEST_ARRAY		/* skip packet for testing */
-    make_gdb_packet (packet, "?");	/* ask for a bogus packet */
-    if (array_send_packet (packet) == 0)
-      error ("Couldn't transmit packet\n");
-    printf_monitor ("@\n");	/* force it to flush stdout */
-   expect_prompt(1);		/* See if we get a expect_prompt */
-#endif
-  push_target (&array_ops);
-  if (from_tty)
-    printf("Remote target %s connected to %s\n", array_ops.to_shortname, dev_name);
-}
-
-/*
- * array_close -- Close out all files and local state before this
- *	target loses control.
- */
-
-static void
-array_close (quitting)
-     int quitting;
-{
-  SERIAL_CLOSE(array_desc);
-  array_desc = NULL;
-
-  debuglogs (1, "array_close (quitting=%d)", quitting);
-
-#if defined (LOG_FILE)
-  if (log_file) {
-    if (ferror(log_file))
-      printf_filtered ("Error writing log file.\n");
-    if (fclose(log_file) != 0)
-      printf_filtered ("Error closing log file.\n");
-  }
-#endif
-}
-
-/* 
- * array_detach -- terminate the open connection to the remote
- *	debugger. Use this when you want to detach and do something
- *	else with your gdb.
- */
-static void
-array_detach (from_tty)
-     int from_tty;
-{
-
-  debuglogs (1, "array_detach ()");
-
-  pop_target();		/* calls array_close to do the real work */
-  if (from_tty)
-    printf ("Ending remote %s debugging\n", target_shortname);
-}
-
-/*
- * array_attach -- attach GDB to the target.
- */
-static void
-array_attach (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  if (from_tty)
-    printf ("Starting remote %s debugging\n", target_shortname);
- 
-  debuglogs (1, "array_attach (args=%s)", args);
-  
-  printf_monitor ("go %x\n");
-  /* swallow the echo.  */
-  expect ("go %x\n", 1);
-}
-  
-/*
- * array_resume -- Tell the remote machine to resume.
- */
-static void
-array_resume (pid, step, sig)
-     int pid, step;
-     enum target_signal sig;
-{
-  debuglogs (1, "array_resume (step=%d, sig=%d)", step, sig);
-
-  if (step) {
-    printf_monitor ("s\n");
-  } else {
-    printf_monitor ("go\n");
-  }
-}
-
-#define TMPBUFSIZ 5
-
-/*
- * array_wait -- Wait until the remote machine stops, then return,
- *          storing status in status just as `wait' would.
- */
-static int
-array_wait (pid, status)
-     int pid;
-     struct target_waitstatus *status;
-{
-  int old_timeout = timeout;
-  int result, i;
-  char c;
-  serial_t tty_desc;
-  serial_ttystate ttystate;
-
-  debuglogs(1, "array_wait (), printing extraneous text.");
-  
-  status->kind = TARGET_WAITKIND_EXITED;
-  status->value.integer = 0;
-
-  timeout = 0;		/* Don't time out -- user program is running. */
- 
-#if !defined(__GO32__) && !defined(__MSDOS__) && !defined(_WIN32)
-  tty_desc = SERIAL_FDOPEN (0);
-  ttystate = SERIAL_GET_TTY_STATE (tty_desc);
-  SERIAL_RAW (tty_desc);
-
-  i = 0;
-  /* poll on the serial port and the keyboard. */
-  while (1) {
-    c = readchar(timeout);
-    if (c > 0) {
-      if (c == *(ARRAY_PROMPT + i)) {
-	if (++i >= strlen (ARRAY_PROMPT)) { /* matched the prompt */
-	  debuglogs (4, "array_wait(), got the expect_prompt.");
-	  break;
-	}
-      } else {		/* not the prompt */
-	i = 0;
-      }
-      fputc_unfiltered (c, gdb_stdout);
-      gdb_flush (gdb_stdout);
-    }
-    c = SERIAL_READCHAR(tty_desc, timeout);
-    if (c > 0) {
-      SERIAL_WRITE(array_desc, &c, 1);
-      /* do this so it looks like there's keyboard echo */
-      if (c == 3)		/* exit on Control-C */
-	break;
-#if 0
-      fputc_unfiltered (c, gdb_stdout);
-      gdb_flush (gdb_stdout);
-#endif
-    }
-  }
-  SERIAL_SET_TTY_STATE (tty_desc, ttystate);
-#else
-  expect_prompt(1);
-  debuglogs (4, "array_wait(), got the expect_prompt.");
-#endif
-
-  status->kind = TARGET_WAITKIND_STOPPED;
-  status->value.sig = TARGET_SIGNAL_TRAP;
-
-  timeout = old_timeout;
-
-  return 0;
-}
-
-/*
- * array_fetch_registers -- read the remote registers into the
- *	block regs.
- */
-static void
-array_fetch_registers (ignored)
-     int ignored;
-{
-  int regno, i;
-  char *p;
-  unsigned char packet[PBUFSIZ];
-  char regs[REGISTER_BYTES];
-
-  debuglogs (1, "array_fetch_registers (ignored=%d)\n", ignored);
-
-  memset (packet, 0, PBUFSIZ);
-  /* Unimplemented registers read as all bits zero.  */
-  memset (regs, 0, REGISTER_BYTES);
-  make_gdb_packet (packet, "g");
-  if (array_send_packet (packet) == 0)
-    error ("Couldn't transmit packet\n");
-  if (array_get_packet (packet) == 0)
-    error ("Couldn't receive packet\n");  
-  /* FIXME: read bytes from packet */
-  debuglogs (4, "array_fetch_registers: Got a \"%s\" back\n", packet);
-  for (regno = 0; regno <= PC_REGNUM+4; regno++) {
-    /* supply register stores in target byte order, so swap here */
-    /* FIXME: convert from ASCII hex to raw bytes */
-    i = ascii2hexword (packet + (regno * 8));
-    debuglogs (5, "Adding register %d = %x\n", regno, i);
-    SWAP_TARGET_AND_HOST (&i, 4);
-    supply_register (regno, (char *)&i);
-  }
-}
-
-/* 
- * This is unused by targets like this one that use a
- * protocol based on GDB's remote protocol.
- */
-static void
-array_fetch_register (ignored)
-     int ignored;
-{
-  array_fetch_registers ();
-}
-
-/*
- * Get all the registers from the targets. They come back in a large array.
- */
-static void
-array_store_registers (ignored)
-     int ignored;
-{
-  int regno;
-  unsigned long i;
-  char packet[PBUFSIZ];
-  char buf[PBUFSIZ];
-  char num[9];
-  
-  debuglogs (1, "array_store_registers()");
-
-  memset (packet, 0, PBUFSIZ);
-  memset (buf, 0, PBUFSIZ);
-  buf[0] = 'G';
-
-  /* Unimplemented registers read as all bits zero.  */
-  /* FIXME: read bytes from packet */
-  for (regno = 0; regno < 41; regno++) { /* FIXME */
-    /* supply register stores in target byte order, so swap here */
-    /* FIXME: convert from ASCII hex to raw bytes */
-    i = (unsigned long)read_register (regno);
-    hexword2ascii (num, i);
-    strcpy (buf+(regno * 8)+1, num);
-  }
-  *(buf + (regno * 8) + 2) = 0;
-  make_gdb_packet (packet, buf);
-  if (array_send_packet (packet) == 0)
-    error ("Couldn't transmit packet\n");
-  if (array_get_packet (packet) == 0)
-    error ("Couldn't receive packet\n");  
-  
-  registers_changed ();
-}
-
-/* 
- * This is unused by targets like this one that use a
- * protocol based on GDB's remote protocol.
- */
-static void
-array_store_register (ignored)
-     int ignored;
-{
-  array_store_registers ();
-}
-
-/* Get ready to modify the registers array.  On machines which store
-   individual registers, this doesn't need to do anything.  On machines
-   which store all the registers in one fell swoop, this makes sure
-   that registers contains all the registers from the program being
-   debugged.  */
-
-static void
-array_prepare_to_store ()
-{
-  /* Do nothing, since we can store individual regs */
-}
-
-static void
-array_files_info ()
-{
-  printf ("\tAttached to %s at %d baud.\n",
-	  dev_name, baudrate);
-}
-
-/*
- * array_write_inferior_memory -- Copy LEN bytes of data from debugger
- *	memory at MYADDR to inferior's memory at MEMADDR.  Returns length moved.
- */
-static int
-array_write_inferior_memory (memaddr, myaddr, len)
-     CORE_ADDR memaddr;
-     unsigned char *myaddr;
-     int len;
-{
-  unsigned long i;
-  int j;
-  char packet[PBUFSIZ];
-  char buf[PBUFSIZ];
-  char num[9];
-  char *p;
-  
-  debuglogs (1, "array_write_inferior_memory (memaddr=0x%x, myaddr=0x%x, len=%d)", memaddr, myaddr, len);
-  memset (buf, '\0', PBUFSIZ);		/* this also sets the string terminator */
-  p = buf;
-
-  *p++ = 'M';				/* The command to write memory */
-  hexword2ascii (num, memaddr);	/* convert the address */
-  strcpy (p, num);			/* copy the address */
-  p += 8;
-  *p++ = ',';				/* add comma delimeter */
-  hexword2ascii (num, len);		/* Get the length as a 4 digit number */
-  *p++ = num[4];
-  *p++ = num[5];
-  *p++ = num[6];
-  *p++ = num[7];
-  *p++ = ':';				/* add the colon delimeter */
-  for (j = 0; j < len; j++) {		/* copy the data in after converting it */
-    *p++ = tohex ((myaddr[j] >> 4) & 0xf);
-    *p++ = tohex  (myaddr[j] & 0xf);
-  }
-  
-  make_gdb_packet (packet, buf);
-  if (array_send_packet (packet) == 0)
-    error ("Couldn't transmit packet\n");
-  if (array_get_packet (packet) == 0)
-    error ("Couldn't receive packet\n");  
-
-  return len;
-}
-
-/*
- * array_read_inferior_memory -- read LEN bytes from inferior memory
- *	at MEMADDR.  Put the result at debugger address MYADDR.  Returns
- *	length moved.
- */
-static int
-array_read_inferior_memory(memaddr, myaddr, len)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-{
-  int j;
-  char buf[20];
-  char packet[PBUFSIZ];
-  int count;			/* Number of bytes read so far.  */
-  unsigned long startaddr;	/* Starting address of this pass.  */
-  int len_this_pass;		/* Number of bytes to read in this pass.  */
-
-  debuglogs (1, "array_read_inferior_memory (memaddr=0x%x, myaddr=0x%x, len=%d)", memaddr, myaddr, len);
-
-  /* Note that this code works correctly if startaddr is just less
-     than UINT_MAX (well, really CORE_ADDR_MAX if there was such a
-     thing).  That is, something like
-     array_read_bytes (CORE_ADDR_MAX - 4, foo, 4)
-     works--it never adds len To memaddr and gets 0.  */
-  /* However, something like
-     array_read_bytes (CORE_ADDR_MAX - 3, foo, 4)
-     doesn't need to work.  Detect it and give up if there's an attempt
-     to do that.  */
-  if (((memaddr - 1) + len) < memaddr) {
-    errno = EIO;
-    return 0;
-  }
-  
-  for (count = 0, startaddr = memaddr; count < len; startaddr += len_this_pass)
-    {
-      /* Try to align to 16 byte boundry (why?) */
-      len_this_pass = 16;
-      if ((startaddr % 16) != 0)
-	{
-	  len_this_pass -= startaddr % 16;
-	}
-      /* Only transfer bytes we need */
-      if (len_this_pass > (len - count))
-	{
-	  len_this_pass = (len - count);
-	}
-      /* Fetch the bytes */
-      debuglogs (3, "read %d bytes from inferior address %x", len_this_pass,
-		 startaddr);
-      sprintf (buf, "m%08x,%04x", startaddr, len_this_pass);
-      make_gdb_packet (packet, buf);
-      if (array_send_packet (packet) == 0)
-	{
-	  error ("Couldn't transmit packet\n");
-	}
-      if (array_get_packet (packet) == 0)
-	{
-	  error ("Couldn't receive packet\n");  
-	}
-      if (*packet == 0)
-	{
-	  error ("Got no data in the GDB packet\n");
-	}
-      /* Pick packet apart and xfer bytes to myaddr */
-      debuglogs (4, "array_read_inferior_memory: Got a \"%s\" back\n", packet);
-      for (j = 0; j < len_this_pass ; j++)
-	{
-	  /* extract the byte values */
-	  myaddr[count++] = from_hex (*(packet+(j*2))) * 16 + from_hex (*(packet+(j*2)+1));
-	  debuglogs (5, "myaddr[%d] set to %x\n", count-1, myaddr[count-1]);
-	}
-    }
-  return (count);
-}
-
-/* FIXME-someday!  merge these two.  */
-static int
-array_xfer_memory (memaddr, myaddr, len, write, target)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-     int write;
-     struct target_ops *target;		/* ignored */
-{
-  if (write)
-    return array_write_inferior_memory (memaddr, myaddr, len);
-  else
-    return array_read_inferior_memory (memaddr, myaddr, len);
-}
-
-static void
-array_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.  */
-
-static void
-array_mourn_inferior ()
-{
-  remove_breakpoints ();
-  generic_mourn_inferior ();	/* Do all the proper things now */
-}
-
-#define MAX_ARRAY_BREAKPOINTS 16
-
-static CORE_ADDR breakaddr[MAX_ARRAY_BREAKPOINTS] = {0};
-
-/*
- * array_insert_breakpoint -- add a breakpoint
- */
-static int
-array_insert_breakpoint (addr, shadow)
-     CORE_ADDR addr;
-     char *shadow;
-{
-  int i;
-  int bp_size = 0;
-  CORE_ADDR bp_addr = addr;
-
-  debuglogs (1, "array_insert_breakpoint() addr = 0x%x", addr);
-  BREAKPOINT_FROM_PC (&bp_addr, &bp_size);
-
-  for (i = 0; i <= MAX_ARRAY_BREAKPOINTS; i++) {
-    if (breakaddr[i] == 0) {
-      breakaddr[i] = addr;
-      if (sr_get_debug() > 4)
-	printf ("Breakpoint at %x\n", addr);
-      array_read_inferior_memory (bp_addr, shadow, bp_size);
-      printf_monitor("b 0x%x\n", addr);
-      expect_prompt(1);
-      return 0;
-    }
-  }
-
-  fprintf(stderr, "Too many breakpoints (> 16) for monitor\n");
-  return 1;
-}
-
-/*
- * _remove_breakpoint -- Tell the monitor to remove a breakpoint
- */
-static int
-array_remove_breakpoint (addr, shadow)
-     CORE_ADDR addr;
-     char *shadow;
-{
-  int i;
-
-  debuglogs (1, "array_remove_breakpoint() addr = 0x%x", addr);
-
-  for (i = 0; i < MAX_ARRAY_BREAKPOINTS; i++) {
-    if (breakaddr[i] == addr) {
-      breakaddr[i] = 0;
-      /* some monitors remove breakpoints based on the address */
-      printf_monitor("bd %x\n", i);
-      expect_prompt(1);
-      return 0;
-    }
-  }
-  fprintf(stderr, "Can't find breakpoint associated with 0x%x\n", addr);
-  return 1;
-}
-
-static void
-array_stop ()
-{
-  debuglogs (1, "array_stop()");
-  printf_monitor("\003");
- expect_prompt(1);
-}
-
-/* 
- * array_command -- put a command string, in args, out to MONITOR.
- *	Output from MONITOR is placed on the users terminal until the
- *	expect_prompt is seen. FIXME
- */
-static void
-monitor_command (args, fromtty)
-     char	*args;
-     int	fromtty;
-{
-  debuglogs (1, "monitor_command (args=%s)", args);
-
-  if (array_desc == NULL)
-    error("monitor target not open.");
-
-  if (!args)
-    error("Missing command.");
-	
-  printf_monitor ("%s\n", args);
-  expect_prompt(0);
-}
-
-/*
- * make_gdb_packet -- make a GDB packet. The data is always ASCII.
- *	 A debug packet whose contents are <data>
- *	 is encapsulated for transmission in the form:
- *
- *		$ <data> # CSUM1 CSUM2
- *
- *       <data> must be ASCII alphanumeric and cannot include characters
- *       '$' or '#'.  If <data> starts with two characters followed by
- *       ':', then the existing stubs interpret this as a sequence number.
- *
- *       CSUM1 and CSUM2 are ascii hex representation of an 8-bit 
- *       checksum of <data>, the most significant nibble is sent first.
- *       the hex digits 0-9,a-f are used.
- *
- */
-static void
-make_gdb_packet (buf, data)
-     char *buf, *data;
-{
-  int i;
-  unsigned char csum = 0;
-  int cnt;
-  char *p;
-
-  debuglogs (3, "make_gdb_packet(%s)\n", data);
-  cnt  = strlen (data);
-  if (cnt > PBUFSIZ)
-    error ("make_gdb_packet(): to much data\n");
-
-  /* start with the packet header */
-  p = buf;
-  *p++ = '$';
-
-  /* calculate the checksum */
-  for (i = 0; i < cnt; i++) {
-    csum += data[i];
-    *p++ = data[i];
-  }
-
-  /* terminate the data with a '#' */
-  *p++ = '#';
-  
-  /* add the checksum as two ascii digits */
-  *p++ = tohex ((csum >> 4) & 0xf);
-  *p++ = tohex (csum & 0xf);
-  *p  = 0x0;			/* Null terminator on string */
-}
-
-/*
- * array_send_packet -- send a GDB packet to the target with error handling. We
- *		get a '+' (ACK) back if the packet is received and the checksum
- *		matches. Otherwise a '-' (NAK) is returned. It returns a 1 for a
- *		successful transmition, or a 0 for a failure.
- */
-static int
-array_send_packet (packet)
-     char *packet;
-{
-  int c, retries, i;
-  char junk[PBUFSIZ];
-
-  retries = 0;
-
-#if 0
-  /* scan the packet to make sure it only contains valid characters.
-     this may sound silly, but sometimes a garbled packet will hang
-     the target board. We scan the whole thing, then print the error
-     message.
-     */
-  for (i = 0; i < strlen(packet); i++) {
-    debuglogs (5, "array_send_packet(): Scanning \'%c\'\n", packet[i]);
-    /* legit hex numbers or command */
-    if ((isxdigit(packet[i])) || (isalpha(packet[i])))
-      continue;
-    switch (packet[i]) {
-    case '+':			/* ACK */
-    case '-':			/* NAK */
-    case '#':			/* end of packet */
-    case '$':			/* start of packet */
-      continue;
-    default:			/* bogus character */
-      retries++;
-      debuglogs (4, "array_send_packet(): Found a non-ascii digit \'%c\' in the packet.\n", packet[i]);
-    }
-  }
-#endif  
-
-  if (retries > 0)
-    error ("Can't send packet, found %d non-ascii characters", retries);
-
-  /* ok, try to send the packet */
-  retries = 0;
-  while (retries++ <= 10) {
-    printf_monitor ("%s", packet);
-    
-    /* read until either a timeout occurs (-2) or '+' is read */
-    while (retries <= 10) {
-      c = readchar (-timeout);
-      debuglogs (3, "Reading a GDB protocol packet... Got a '%c'\n", c);
-      switch (c) {
-      case '+':
-	debuglogs (3, "Got Ack\n");
-	return 1;
-      case SERIAL_TIMEOUT:
-	debuglogs (3, "Timed out reading serial port\n");
-	printf_monitor("@");		/* resync with the monitor */
-       expect_prompt(1);		/* See if we get a expect_prompt */   
-	break;            /* Retransmit buffer */
-      case '-':
-	debuglogs (3, "Got NAK\n");
-	printf_monitor("@");		/* resync with the monitor */
-       expect_prompt(1);		/* See if we get a expect_prompt */   
-	break;
-      case '$':
-	/* it's probably an old response, or the echo of our command.
-	 * just gobble up the packet and ignore it.
-	 */
-	debuglogs (3, "Got a junk packet\n");
-	i = 0;
-	do {
-	  c = readchar (timeout);
-	  junk[i++] = c;
-	} while (c != '#');
-	c = readchar (timeout);
-	junk[i++] = c;
-	c = readchar (timeout);
-	junk[i++] = c;
-	junk[i++] = '\0';
-	debuglogs (3, "Reading a junk packet, got a \"%s\"\n", junk);
-	continue;               /* Now, go look for next packet */
-      default:
-	continue;
-      }
-      retries++;
-      debuglogs (3, "Retransmitting packet \"%s\"\n", packet);
-      break;                /* Here to retransmit */
-    }
-  } /* outer while */
-  return 0;
-}
-
-/*
- * array_get_packet -- get a GDB packet from the target. Basically we read till we
- *		see a '#', then check the checksum. It returns a 1 if it's gotten a
- *		packet, or a 0 it the packet wasn't transmitted correctly.
- */
-static int
-array_get_packet (packet)
-     char *packet;
-{
-  int c;
-  int retries;
-  unsigned char csum;
-  unsigned char pktcsum;
-  char *bp;
-
-  csum = 0;
-  bp = packet;
-
-  memset (packet, 1, PBUFSIZ);
-  retries = 0;
-  while (retries <= 10) {
-    do {
-      c = readchar (timeout);
-      if (c == SERIAL_TIMEOUT) {
-	debuglogs (3, "array_get_packet: got time out from serial port.\n");
-      }
-      debuglogs (3, "Waiting for a '$', got a %c\n", c);
-    } while (c != '$');
-    
-    retries = 0;
-    while (retries <= 10) {
-      c = readchar (timeout);
-      debuglogs (3, "array_get_packet: got a '%c'\n", c);
-      switch (c) {
-      case SERIAL_TIMEOUT:
-	debuglogs (3, "Timeout in mid-packet, retrying\n");
-	return 0;
-      case '$':
-	debuglogs (3, "Saw new packet start in middle of old one\n");
-	return 0;             /* Start a new packet, count retries */
-      case '#':	
-	*bp = '\0';
-	pktcsum = from_hex (readchar (timeout)) << 4;
-	pktcsum |= from_hex (readchar (timeout));
-	if (csum == 0)
-	  debuglogs (3, "\nGDB packet checksum zero, must be a bogus packet\n");
-	if (csum == pktcsum) {
-	  debuglogs (3, "\nGDB packet checksum correct, packet data is \"%s\",\n", packet);
-	  printf_monitor ("@");
-	 expect_prompt (1);
-	  return 1;
-	}
-	debuglogs (3, "Bad checksum, sentsum=0x%x, csum=0x%x\n", pktcsum, csum);
-	return 0;
-      case '*':               /* Run length encoding */
-	debuglogs (5, "Run length encoding in packet\n");
-	csum += c;
-	c = readchar (timeout);
-	csum += c;
-	c = c - ' ' + 3;      /* Compute repeat count */
-	
-	if (c > 0 && c < 255 && bp + c - 1 < packet + PBUFSIZ - 1) {
-	  memset (bp, *(bp - 1), c);
-	  bp += c;
-	  continue;
-	}
-	*bp = '\0';
-	printf_filtered ("Repeat count %d too large for buffer.\n", c);
-	return 0;
-	
-      default:
-	if ((!isxdigit(c)) && (!ispunct(c)))
-	  debuglogs (4, "Got a non-ascii digit \'%c\'.\\n", c);
-	if (bp < packet + PBUFSIZ - 1) {
-	  *bp++ = c;
-	  csum += c;
-	  continue;
-	}
-	
-	*bp = '\0';
-	puts_filtered ("Remote packet too long.\n");
-	return 0;
-      }
-    }
-  }
-  return 0; /* exceeded retries */
-}
-
-/*
- * ascii2hexword -- convert an ascii number represented by 8 digits to a hex value.
- */
-static unsigned long
-ascii2hexword (mem)
-     unsigned char *mem;
-{
-  unsigned long val;
-  int i;
-  char buf[9];
-
-  val = 0;
-  for (i = 0; i < 8; i++) {
-    val <<= 4;
-    if (mem[i] >= 'A' && mem[i] <= 'F')
-      val = val + mem[i] - 'A' + 10;      
-    if (mem[i] >= 'a' && mem[i] <= 'f')
-      val = val + mem[i] - 'a' + 10;
-    if (mem[i] >= '0' && mem[i] <= '9')
-      val = val + mem[i] - '0';
-    buf[i] = mem[i];
-  }
-  buf[8] = '\0';
-  debuglogs (4, "ascii2hexword() got a 0x%x from %s(%x).\n", val, buf, mem);
-  return val;
-}
-
-/*
- * ascii2hexword -- convert a hex value to an ascii number represented by 8
- *	digits.
- */
-static void
-hexword2ascii (mem, num)
-     unsigned char *mem;
-     unsigned long num;
-{
-  int i;
-  unsigned char ch;
-  
-  debuglogs (4, "hexword2ascii() converting %x ", num);
-  for (i = 7; i >= 0; i--) {    
-    mem[i] = tohex ((num >> 4) & 0xf);
-    mem[i] = tohex (num & 0xf);
-    num = num >> 4;
-  }
-  mem[8] = '\0';
-  debuglogs (4, "\tto a %s", mem);
-}
-
-/* Convert hex digit A to a number.  */
-static int
-from_hex (a)
-     int a;
-{  
-  if (a == 0)
-    return 0;
-
-  debuglogs (4, "from_hex got a 0x%x(%c)\n",a,a);
-  if (a >= '0' && a <= '9')
-    return a - '0';
-  if (a >= 'a' && a <= 'f')
-    return a - 'a' + 10;
-  if (a >= 'A' && a <= 'F')
-    return a - 'A' + 10;
-  else {
-    error ("Reply contains invalid hex digit 0x%x", a);
-  }
-}
-
-/* Convert number NIB to a hex digit.  */
-static int
-tohex (nib)
-     int nib;
-{
-  if (nib < 10)
-    return '0'+nib;
-  else
-    return 'a'+nib-10;
-}
-
-/*
- * _initialize_remote_monitors -- setup a few addtitional commands that
- *		are usually only used by monitors.
- */
-void
-_initialize_remote_monitors ()
-{
-  /* generic monitor command */
-  add_com ("monitor", class_obscure, monitor_command,
-	   "Send a command to the debug monitor."); 
-
-}
-
-/*
- * _initialize_array -- do any special init stuff for the target.
- */
-void
-_initialize_array ()
-{
-  init_array_ops() ;
-  add_target (&array_ops);
-}