Initial creation of sourceware repository

1 files changed, 0 insertions, 1264 deletions

diff --git a/gdb/remote-os9k.c b/gdb/remote-os9k.c
deleted file mode 100644
index 2abfa83..0000000
--- a/gdb/remote-os9k.c
+++ /dev/null
@@ -1,1264 +0,0 @@
-/* Remote debugging interface for boot monitors, for GDB.
-   Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
-
-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.  */
-
-/* This file was derived from remote-eb.c, which did a similar job, but for
-   an AMD-29K running EBMON.  That file was in turn derived from remote.c
-   as mentioned in the following comment (left in for comic relief):
-
-  "This is like remote.c but is for a different situation--
-   having a PC running os9000 hook up with a unix machine with
-   a serial line, and running ctty com2 on the PC. os9000 has a debug
-   monitor called ROMBUG running.  Not to mention that the PC
-   has PC/NFS, so it can access the same executables that gdb can,
-   over the net in real time."
-
-   In reality, this module talks to a debug monitor called 'ROMBUG', which
-   We communicate with ROMBUG via a direct serial line, the network version
-   of ROMBUG is not available yet.
-*/
-
-/* FIXME This file needs to be rewritten if it's to work again, either
-   to self-contained or to use the new monitor interface.  */
-
-#include "defs.h"
-#include "gdbcore.h"
-#include "target.h"
-#include "wait.h"
-#ifdef ANSI_PROTOTYPES
-#include <stdarg.h>
-#else
-#include <varargs.h>
-#endif
-#include <signal.h>
-#include "gdb_string.h"
-#include <sys/types.h>
-#include "command.h"
-#include "serial.h"
-#include "monitor.h"
-#include "remote-utils.h"
-#include "symtab.h"
-#include "symfile.h"
-#include "objfiles.h"
-#include "gdb-stabs.h"
-
-struct cmd_list_element *showlist;
-extern struct target_ops rombug_ops;		/* Forward declaration */
-extern struct monitor_ops rombug_cmds;		/* Forward declaration */
-extern struct cmd_list_element *setlist;
-extern struct cmd_list_element *unsetlist;
-extern int attach_flag;
-
-static void rombug_close();
-static void rombug_fetch_register();
-static void rombug_fetch_registers();
-static void rombug_store_register();
-#if 0
-static int sr_get_debug();			/* flag set by "set remotedebug" */
-#endif
-static int hashmark;				/* flag set by "set hash" */
-static int rombug_is_open = 0;
-
-/* FIXME: Replace with sr_get_debug ().  */
-#define LOG_FILE "monitor.log"
-FILE *log_file;
-static int monitor_log = 0;
-static int tty_xon = 0;
-static int tty_xoff = 0;
-
-static int timeout = 10;
-static int is_trace_mode = 0;
-/* Descriptor for I/O to remote machine.  Initialize it to NULL*/
-static serial_t monitor_desc = NULL;
-
-static CORE_ADDR bufaddr = 0;
-static int buflen = 0;
-static char readbuf[16];
-
-/* 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[200];
-  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);
-  va_end(args);
-
-  if (SERIAL_WRITE(monitor_desc, buf, strlen(buf)))
-    fprintf(stderr, "SERIAL_WRITE failed: %s\n", safe_strerror(errno));
-}
-
-/* Read a character from the remote system, doing all the fancy timeout stuff*/
-static int
-readchar(timeout)
-     int timeout;
-{
-  int c;
-
-  c = SERIAL_READCHAR(monitor_desc, timeout);
-
-  if (sr_get_debug())
-    putchar(c & 0x7f);
-
-  if (monitor_log && isascii(c))
-    putc(c & 0x7f, log_file);
-
-  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.");
-    }
-
-  perror_with_name("remote-monitor");
-}
-
-/* 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;
-
-  if (sr_get_debug())
-    printf ("Expecting \"%s\"\n", string);
-
-  immediate_quit = 1;
-  while (1)
-    {
-      c = readchar(timeout);
-      if (!isascii (c))
-	continue;
-      if (c == *p++)
-	{
-	  if (*p == '\0')
-	    {
-	      immediate_quit = 0;
-	      if (sr_get_debug())
-		printf ("\nMatched\n");
-	      return;
-	    }
-	}
-      else
-	{
-	  if (!discard)
-	    {
-	      fwrite(string, 1, (p - 1) - string, stdout);
-	      putchar((char)c);
-	      fflush(stdout);
-	    }
-	  p = string;
-	}
-    }
-}
-
-/* Keep discarding input until we see the ROMBUG prompt.
-
-   The convention for dealing with the prompt is that you
-   o give your command
-   o *then* wait for the prompt.
-
-   Thus the last thing that a procedure does with the serial line
-   will be an expect_prompt().  Exception:  rombug_resume does not
-   wait for the prompt, because the terminal is being handed over
-   to the inferior.  However, the next thing which happens after that
-   is a rombug_wait which does wait for the 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;
-{
-  if (monitor_log)
-  /* This is a convenient place to do this.  The idea is to do it often
-     enough that we never lose much data if we terminate abnormally.  */
-    fflush(log_file);
-
-  if (is_trace_mode) {
-    expect("trace", discard);
-  } else {
-    expect (PROMPT, discard);
-  }
-}
-
-/* Get a hex digit from the remote system & return its value.
-   If ignore_space is nonzero, ignore spaces (not newline, tab, etc).  */
-static int
-get_hex_digit(ignore_space)
-     int ignore_space;
-{
-  int ch;
-  while (1)
-    {
-      ch = readchar(timeout);
-      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_space)
-	;
-      else
-	{
-	  expect_prompt(1);
-	  error("Invalid hex digit from remote system.");
-	}
-    }
-}
-
-/* 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;
-  val |= get_hex_digit (0);
-  *byt = val;
-}
-
-/* Get N 32-bit words from remote, each preceded by a space,
-   and put them in registers starting at REGNO.  */
-static void
-get_hex_regs (n, regno)
-     int n;
-     int regno;
-{
-  long val;
-  int i;
-  unsigned char b;
-
-  for (i = 0; i < n; i++)
-    {
-      int j;
-      
-      val = 0;
-      for (j = 0; j < 4; j++)
-	{
-	  get_hex_byte (&b);
-	  if (TARGET_BYTE_ORDER == BIG_ENDIAN)
-	    val = (val << 8) + b;
-	  else
-	    val = val + (b << (j*8));
-	}
-      supply_register (regno++, (char *) &val);
-    }
-}
-
-/* This is called not only when we first attach, but also when the
-   user types "run" after having attached.  */
-static void
-rombug_create_inferior (execfile, args, env)
-     char *execfile;
-     char *args;
-     char **env;
-{
-  int entry_pt;
-
-  if (args && *args)
-    error("Can't pass arguments to remote ROMBUG process");
-
-  if (execfile == 0 || exec_bfd == 0)
-    error("No executable file specified");
-
-  entry_pt = (int) bfd_get_start_address (exec_bfd);
-
-  if (monitor_log)
-    fputs ("\nIn Create_inferior()", log_file);
-
-
-/* The "process" (board) is already stopped awaiting our commands, and
-   the program is already downloaded.  We just set its PC and go.  */
-
-  init_wait_for_inferior ();
-  proceed ((CORE_ADDR)entry_pt, TARGET_SIGNAL_DEFAULT, 0);
-}
-
-/* Open a connection to a remote debugger.
-   NAME is the filename used for communication.  */
-
-static char dev_name[100];
-
-static void
-rombug_open(args, from_tty)
-     char *args;
-     int from_tty;
-{
-  if (args == NULL)
-    error ("Use `target RomBug DEVICE-NAME' to use a serial port, or \n\
-`target RomBug HOST-NAME:PORT-NUMBER' to use a network connection.");
-
-  target_preopen(from_tty);
-
-  if (rombug_is_open)
-    unpush_target(&rombug_ops);
-
-  strcpy(dev_name, args);
-  monitor_desc = SERIAL_OPEN(dev_name);
-  if (monitor_desc == NULL)
-    perror_with_name(dev_name);
-
-  /* if baud rate is set by 'set remotebaud' */
-  if (SERIAL_SETBAUDRATE (monitor_desc, sr_get_baud_rate()))
-    {
-      SERIAL_CLOSE (monitor_desc);
-      perror_with_name ("RomBug");
-    }
-  SERIAL_RAW(monitor_desc);
-  if (tty_xon || tty_xoff)
-    {
-    struct hardware_ttystate { struct termios t;} *tty_s;
-
-      tty_s =(struct hardware_ttystate  *)SERIAL_GET_TTY_STATE(monitor_desc);
-      if (tty_xon) tty_s->t.c_iflag |= IXON; 
-      if (tty_xoff) tty_s->t.c_iflag |= IXOFF;
-      SERIAL_SET_TTY_STATE(monitor_desc, (serial_ttystate) tty_s);
-    }
-
-  rombug_is_open = 1;
-
-  log_file = fopen (LOG_FILE, "w");
-  if (log_file == NULL)
-    perror_with_name (LOG_FILE);
-
-  push_monitor (&rombug_cmds);
-  printf_monitor("\r");	/* CR wakes up monitor */
-  expect_prompt(1);
-  push_target (&rombug_ops);
-  attach_flag = 1;
-
-  if (from_tty)
-    printf("Remote %s connected to %s\n", target_shortname,
-	   dev_name);
-
-  rombug_fetch_registers();
-
-  printf_monitor ("ov e \r");
-  expect_prompt(1);
-  bufaddr = 0;
-  buflen = 0;
-}
-
-/*
- * Close out all files and local state before this target loses control.
- */
-
-static void
-rombug_close (quitting)
-     int quitting;
-{
-  if (rombug_is_open) {
-    SERIAL_CLOSE(monitor_desc);
-    monitor_desc = NULL;
-    rombug_is_open = 0;
-  }
-
-  if (log_file) {
-    if (ferror(log_file))
-      fprintf(stderr, "Error writing log file.\n");
-    if (fclose(log_file) != 0)
-      fprintf(stderr, "Error closing log file.\n");
-    log_file = 0;
-  }
-}
-
-int
-rombug_link(mod_name, text_reloc)
-     char *mod_name;
-     CORE_ADDR *text_reloc;
-{
-  int i, j;
-  unsigned long val;
-  unsigned char b;
-
-  printf_monitor("l %s \r", mod_name); 
-  expect_prompt(1);
-  printf_monitor(".r \r");
-  expect(REG_DELIM, 1);
-  for (i=0; i <= 7; i++)
-    {
-      val = 0;
-      for (j = 0; j < 4; j++)
-        {
-          get_hex_byte(&b);
-          val = (val << 8) + b;
-	}
-    }
-  expect_prompt(1);
-  *text_reloc = val;
-  return 1;
-}
-
-/* Terminate the open connection to the remote debugger.
-   Use this when you want to detach and do something else
-   with your gdb.  */
-static void
-rombug_detach (from_tty)
-     int from_tty;
-{
-  if (attach_flag) {
-    printf_monitor (GO_CMD);
-    attach_flag = 0;
-  }
-  pop_target();		/* calls rombug_close to do the real work */
-  if (from_tty)
-    printf ("Ending remote %s debugging\n", target_shortname);
-}
- 
-/*
- * Tell the remote machine to resume.
- */
-static void
-rombug_resume (pid, step, sig)
-     int pid, step;
-     enum target_signal sig;
-{
-  if (monitor_log)
-    fprintf (log_file, "\nIn Resume (step=%d, sig=%d)\n", step, sig);
-
-  if (step)
-    {
-      is_trace_mode = 1;
-      printf_monitor (STEP_CMD);
-      /* wait for the echo.  **
-      expect (STEP_CMD, 1);
-      */
-    }
-  else
-    {
-      printf_monitor (GO_CMD);
-      /* swallow the echo.  **
-      expect (GO_CMD, 1);
-      */
-    }
-  bufaddr = 0;
-  buflen= 0;
-}
-
-/*
- * Wait until the remote machine stops, then return,
- * storing status in status just as `wait' would.
- */
-
-static int
-rombug_wait (pid, status)
-     int pid;
-     struct target_waitstatus *status;
-{
-  int old_timeout = timeout;
-  struct section_offsets *offs;
-  CORE_ADDR addr, pc;
-  struct obj_section *obj_sec;
-
-  if (monitor_log)
-    fputs ("\nIn wait ()", log_file);
-
-  status->kind = TARGET_WAITKIND_EXITED;
-  status->value.integer = 0;
-
-  timeout = -1;		/* Don't time out -- user program is running. */
-  expect ("eax:", 0);   /* output any message before register display */
-  expect_prompt(1);     /* Wait for prompt, outputting extraneous text */
-
-  status->kind = TARGET_WAITKIND_STOPPED;
-  status->value.sig = TARGET_SIGNAL_TRAP;
-  timeout = old_timeout;
-  rombug_fetch_registers();
-  bufaddr = 0;
-  buflen = 0;
-  pc = read_register(PC_REGNUM);
-  addr = read_register(DATABASE_REG);
-  obj_sec = find_pc_section (pc);
-  if (obj_sec != NULL)
-    {
-      if (obj_sec->objfile != symfile_objfile)
-        new_symfile_objfile(obj_sec->objfile, 1, 0);
-      offs = ((struct section_offsets *)
-	 alloca (sizeof (struct section_offsets)
-	 + (symfile_objfile->num_sections * sizeof (offs->offsets))));
-      memcpy (offs, symfile_objfile->section_offsets,
-         (sizeof (struct section_offsets) + 
-	 (symfile_objfile->num_sections * sizeof (offs->offsets))));
-      ANOFFSET (offs, SECT_OFF_DATA) = addr;
-      ANOFFSET (offs, SECT_OFF_BSS) = addr;
-
-      objfile_relocate(symfile_objfile, offs);
-    }
-
-  return 0;
-}
-
-/* Return the name of register number regno in the form input and output by
-   monitor.  Currently, register_names just happens to contain exactly what
-   monitor wants.  Lets take advantage of that just as long as possible! */
-
-static char *
-get_reg_name (regno)
-     int regno;
-{
-  static char buf[50];
-  char *p;
-  char *b;
-
-  b = buf;
-
-  if (regno < 0)
-    return ("");
-/*
-  for (p = REGISTER_NAME (regno); *p; p++)
-    *b++ = toupper(*p);
-  *b = '\000';
-*/
-  p = (char *)REGISTER_NAME (regno);
-  return p;
-/*
-  return buf;
-*/
-}
-
-/* read the remote registers into the block regs.  */
-
-static void
-rombug_fetch_registers ()
-{
-  int regno, j, i;
-  long val;
-  unsigned char b;
-
-  printf_monitor (GET_REG);
-  expect("eax:", 1);
-  expect("\n", 1);
-  get_hex_regs(1, 0);
-  get_hex_regs(1, 3);
-  get_hex_regs(1, 1);
-  get_hex_regs(1, 2);
-  get_hex_regs(1, 6);
-  get_hex_regs(1, 7);
-  get_hex_regs(1, 5);
-  get_hex_regs(1, 4);
-  for (regno = 8; regno <= 15; regno++)
-    {
-      expect(REG_DELIM, 1);
-      if (regno >= 8 && regno <= 13)
-	{
-	  val = 0;
-	  for (j = 0; j < 2; j++)
-            {
-              get_hex_byte (&b);
-	      if (TARGET_BYTE_ORDER == BIG_ENDIAN)
-		val = (val << 8) + b;
-	      else
-		val = val + (b << (j*8));
-            }
-
-	  if (regno == 8) i = 10;
-	  if (regno >=  9 && regno <= 12) i = regno + 3;
-	  if (regno == 13) i = 11;
-	  supply_register (i, (char *) &val);
-	}
-      else if (regno == 14)
-	{
-	  get_hex_regs(1, PC_REGNUM);
-	}
-      else if (regno == 15)
-	{
-	  get_hex_regs(1, 9);
-	}
-      else
-	{
-	  val = 0;
-	  supply_register(regno, (char *) &val);
-	}
-    }
-  is_trace_mode = 0;
-  expect_prompt (1);
-}
-
-/* Fetch register REGNO, or all registers if REGNO is -1.
-   Returns errno value.  */
-static void
-rombug_fetch_register (regno)
-     int regno;
-{
-  int val, j;
-  unsigned char b;
-
-  if (monitor_log) {
-    fprintf (log_file, "\nIn Fetch Register (reg=%s)\n", get_reg_name (regno));
-    fflush (log_file);
-  }
-
-  if (regno < 0)
-    {
-      rombug_fetch_registers ();
-    }
-  else
-    {
-      char *name = get_reg_name (regno);
-      printf_monitor (GET_REG);
-      if (regno >= 10 && regno <= 15)
-	{
-	  expect ("\n", 1);
-	  expect ("\n", 1);
-          expect (name, 1);
-          expect (REG_DELIM, 1);
-	  val = 0;
-	  for (j = 0; j < 2; j++)
-            {
-              get_hex_byte (&b);
-	      if (TARGET_BYTE_ORDER == BIG_ENDIAN)
-		val = (val << 8) + b;
-	      else
-		val = val + (b << (j*8));
-            }
-	  supply_register (regno, (char *) &val);
-	}
-      else if (regno == 8 || regno == 9)
-	{
-	  expect ("\n", 1);
-	  expect ("\n", 1);
-	  expect ("\n", 1);
-          expect (name, 1);
-          expect (REG_DELIM, 1);
-	  get_hex_regs (1, regno);
-	}
-      else
-	{
-          expect (name, 1);
-          expect (REG_DELIM, 1);
-	  expect("\n", 1);
-	  get_hex_regs(1, 0);
-	  get_hex_regs(1, 3);
-	  get_hex_regs(1, 1);
-	  get_hex_regs(1, 2);
-	  get_hex_regs(1, 6);
-	  get_hex_regs(1, 7);
-	  get_hex_regs(1, 5);
-	  get_hex_regs(1, 4);
-	}
-      expect_prompt (1);
-    }
-  return;
-}
-
-/* Store the remote registers from the contents of the block REGS.  */
-
-static void
-rombug_store_registers ()
-{
-  int regno;
-
-  for (regno = 0; regno <= PC_REGNUM; regno++)
-    rombug_store_register(regno);
-
-  registers_changed ();
-}
-
-/* Store register REGNO, or all if REGNO == 0.
-   return errno value.  */
-static void
-rombug_store_register (regno)
-     int regno;
-{
-char *name;
-
-  if (monitor_log)
-    fprintf (log_file, "\nIn Store_register (regno=%d)\n", regno);
-
-  if (regno == -1)
-    rombug_store_registers ();
-  else
-    {
-      if (sr_get_debug())
-	printf ("Setting register %s to 0x%x\n", get_reg_name (regno), read_register (regno));
-
-      name = get_reg_name(regno);
-      if (name == 0) return;
-      printf_monitor (SET_REG, name, read_register (regno));
-
-      is_trace_mode = 0;
-      expect_prompt (1);
-    }
-}
-
-/* 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
-rombug_prepare_to_store ()
-{
-  /* Do nothing, since we can store individual regs */
-}
-
-static void
-rombug_files_info ()
-{
-  printf ("\tAttached to %s at %d baud.\n",
-	  dev_name, sr_get_baud_rate());
-}
-
-/* Copy LEN bytes of data from debugger memory at MYADDR
-   to inferior's memory at MEMADDR.  Returns length moved.  */
-static int
-rombug_write_inferior_memory (memaddr, myaddr, len)
-     CORE_ADDR memaddr;
-     unsigned char *myaddr;
-     int len;
-{
-  int i;
-  char buf[10];
-
-  if (monitor_log)
-    fprintf (log_file, "\nIn Write_inferior_memory (memaddr=%x, len=%d)\n", memaddr, len);
-
-  printf_monitor (MEM_SET_CMD, memaddr);
-  for (i = 0; i < len; i++)
-    {
-      expect (CMD_DELIM, 1);
-      printf_monitor ("%x \r", myaddr[i]);
-      if (sr_get_debug())
-	printf ("\nSet 0x%x to 0x%x\n", memaddr + i, myaddr[i]);
-    }
-  expect (CMD_DELIM, 1);
-  if (CMD_END)
-    printf_monitor (CMD_END);
-  is_trace_mode = 0;
-  expect_prompt (1);
-
-  bufaddr = 0;
-  buflen = 0;
-  return len;
-}
-
-/* Read LEN bytes from inferior memory at MEMADDR.  Put the result
-   at debugger address MYADDR.  Returns length moved.  */
-static int
-rombug_read_inferior_memory(memaddr, myaddr, len)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-{
-  int i, j;
-
-  /* Number of bytes read so far.  */
-  int count;
-
-  /* Starting address of this pass.  */
-  unsigned long startaddr;
-
-  /* Number of bytes to read in this pass.  */
-  int len_this_pass;
-
-  if (monitor_log)
-    fprintf (log_file, "\nIn Read_inferior_memory (memaddr=%x, len=%d)\n", memaddr, 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
-     rombug_read_bytes (CORE_ADDR_MAX - 4, foo, 4)
-     works--it never adds len To memaddr and gets 0.  */
-  /* However, something like
-     rombug_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;
-  }
-  if (bufaddr <= memaddr && (memaddr+len) <= (bufaddr+buflen))
-    {
-      memcpy(myaddr, &readbuf[memaddr-bufaddr], len);
-      return len;
-    }
-  
-  startaddr = memaddr;
-  count = 0;
-  while (count < len)
-    {
-      len_this_pass = 16;
-      if ((startaddr % 16) != 0)
-	len_this_pass -= startaddr % 16;
-      if (len_this_pass > (len - count))
-	len_this_pass = (len - count);
-      if (sr_get_debug())
-	printf ("\nDisplay %d bytes at %x\n", len_this_pass, startaddr);
-
-      printf_monitor (MEM_DIS_CMD, startaddr, 8);
-      expect ("- ", 1);
-      for (i = 0; i < 16; i++)
-	{
-	  get_hex_byte (&readbuf[i]);
-	}
-      bufaddr = startaddr;
-      buflen = 16;
-      memcpy(&myaddr[count], readbuf, len_this_pass); 
-      count += len_this_pass;
-      startaddr += len_this_pass;
-      expect(CMD_DELIM, 1);
-    }
-  if (CMD_END) 
-      printf_monitor (CMD_END);
-  is_trace_mode = 0;
-  expect_prompt (1);
-
-  return len;
-}
-
-/* FIXME-someday!  merge these two.  */
-static int
-rombug_xfer_inferior_memory (memaddr, myaddr, len, write, target)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-     int write;
-     struct target_ops *target;		/* ignored */
-{
-  if (write)
-    return rombug_write_inferior_memory (memaddr, myaddr, len);
-  else
-    return rombug_read_inferior_memory (memaddr, myaddr, len);
-}
-
-static void
-rombug_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
-rombug_mourn_inferior ()
-{
-  remove_breakpoints ();
-  generic_mourn_inferior ();	/* Do all the proper things now */
-}
-
-#define MAX_MONITOR_BREAKPOINTS 16
-
-static CORE_ADDR breakaddr[MAX_MONITOR_BREAKPOINTS] = {0};
-
-static int
-rombug_insert_breakpoint (addr, shadow)
-     CORE_ADDR addr;
-     char *shadow;
-{
-  int i;
-  CORE_ADDR bp_addr = addr;
-  int bp_size = 0;
-
-  if (monitor_log)
-    fprintf (log_file, "\nIn Insert_breakpoint (addr=%x)\n", addr);
-  BREAKPOINT_FROM_PC (&bp_addr, &bp_size);
-
-  for (i = 0; i <= MAX_MONITOR_BREAKPOINTS; i++)
-    if (breakaddr[i] == 0)
-      {
-	breakaddr[i] = addr;
-	if (sr_get_debug())
-	  printf ("Breakpoint at %x\n", addr);
-	rombug_read_inferior_memory (bp_addr, shadow, bp_size);
-	printf_monitor(SET_BREAK_CMD, addr);
-	is_trace_mode = 0;
-	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
-rombug_remove_breakpoint (addr, shadow)
-     CORE_ADDR addr;
-     char *shadow;
-{
-  int i;
-
-  if (monitor_log)
-    fprintf (log_file, "\nIn Remove_breakpoint (addr=%x)\n", addr);
-
-  for (i = 0; i < MAX_MONITOR_BREAKPOINTS; i++)
-    if (breakaddr[i] == addr)
-      {
-	breakaddr[i] = 0;
-	printf_monitor(CLR_BREAK_CMD, addr);
-	is_trace_mode = 0;
-	expect_prompt(1);
-	return 0;
-      }
-
-  fprintf(stderr, "Can't find breakpoint associated with 0x%x\n", addr);
-  return 1;
-}
-
-/* Load a file. This is usually an srecord, which is ascii. No 
-   protocol, just sent line by line. */
-
-#define DOWNLOAD_LINE_SIZE 100
-static void
-rombug_load (arg)
-    char	*arg;
-{
-/* this part comment out for os9* */
-#if 0
-  FILE *download;
-  char buf[DOWNLOAD_LINE_SIZE];
-  int i, bytes_read;
-
-  if (sr_get_debug())
-    printf ("Loading %s to monitor\n", arg);
-
-  download = fopen (arg, "r");
-  if (download == NULL)
-    {
-    error (sprintf (buf, "%s Does not exist", arg));
-    return;
-  }
-
-  printf_monitor (LOAD_CMD);
-/*  expect ("Waiting for S-records from host... ", 1); */
-
-  while (!feof (download))
-    {
-      bytes_read = fread (buf, sizeof (char), DOWNLOAD_LINE_SIZE, download);
-      if (hashmark)
-	{
-	  putchar ('.');
-	  fflush (stdout);
-	}
-
-      if (SERIAL_WRITE(monitor_desc, buf, bytes_read)) {
-	fprintf(stderr, "SERIAL_WRITE failed: (while downloading) %s\n", safe_strerror(errno));
-	break;
-      }
-      i = 0;
-      while (i++ <=200000) {} ;     			/* Ugly HACK, probably needs flow control */
-      if (bytes_read < DOWNLOAD_LINE_SIZE)
-	{
-	  if (!feof (download))
-	    error ("Only read %d bytes\n", bytes_read);
-	  break;
-	}
-    }
-
-  if (hashmark)
-    {
-      putchar ('\n');
-    }
-  if (!feof (download))
-    error ("Never got EOF while downloading");
-  fclose (download);
-#endif 0
-}
-
-/* Put a command string, in args, out to MONITOR.  
-   Output from MONITOR is placed on the users terminal until the prompt 
-   is seen. */
-
-static void
-rombug_command (args, fromtty)
-     char	*args;
-     int	fromtty;
-{
-  if (monitor_desc == NULL)
-    error("monitor target not open.");
-  
-  if (monitor_log)
-    fprintf (log_file, "\nIn command (args=%s)\n", args);
-
-  if (!args)
-    error("Missing command.");
-	
-  printf_monitor("%s\r", args);
-  expect_prompt(0);
-}
-
-#if 0
-/* Connect the user directly to MONITOR.  This command acts just like the
-   'cu' or 'tip' command.  Use <CR>~. or <CR>~^D to break out.  */
-
-static struct ttystate ttystate;
-
-static void
-cleanup_tty()
-{  printf("\r\n[Exiting connect mode]\r\n");
-  /*SERIAL_RESTORE(0, &ttystate);*/
-}
-
-static void
-connect_command (args, fromtty)
-     char	*args;
-     int	fromtty;
-{
-  fd_set readfds;
-  int numfds;
-  int c;
-  char cur_esc = 0;
-
-  dont_repeat();
-
-  if (monitor_desc == NULL)
-    error("monitor target not open.");
-  
-  if (args)
-    fprintf("This command takes no args.  They have been ignored.\n");
-	
-  printf("[Entering connect mode.  Use ~. or ~^D to escape]\n");
-
-  serial_raw(0, &ttystate);
-
-  make_cleanup(cleanup_tty, 0);
-
-  FD_ZERO(&readfds);
-
-  while (1)
-    {
-      do
-	{
-	  FD_SET(0, &readfds);
-	  FD_SET(monitor_desc, &readfds);
-	  numfds = select(sizeof(readfds)*8, &readfds, 0, 0, 0);
-	}
-      while (numfds == 0);
-
-      if (numfds < 0)
-	perror_with_name("select");
-
-      if (FD_ISSET(0, &readfds))
-	{			/* tty input, send to monitor */
-	  c = getchar();
-	  if (c < 0)
-	    perror_with_name("connect");
-
-	  printf_monitor("%c", c);
-	  switch (cur_esc)
-	    {
-	    case 0:
-	      if (c == '\r')
-		cur_esc = c;
-	      break;
-	    case '\r':
-	      if (c == '~')
-		cur_esc = c;
-	      else
-		cur_esc = 0;
-	      break;
-	    case '~':
-	      if (c == '.' || c == '\004')
-		return;
-	      else
-		cur_esc = 0;
-	    }
-	}
-
-      if (FD_ISSET(monitor_desc, &readfds))
-	{
-	  while (1)
-	    {
-	      c = readchar(0);
-	      if (c < 0)
-		break;
-	      putchar(c);
-	    }
-	  fflush(stdout);
-	}
-    }
-}
-#endif
-
-/*
- * Define the monitor command strings. Since these are passed directly
- * through to a printf style function, we need can include formatting
- * strings. We also need a CR or LF on the end.
- */
-#warning FIXME: monitor interface pattern strings, stale struct decl
-struct monitor_ops rombug_cmds = {
-  "g \r",				/* execute or usually GO command */
-  "g \r",				/* continue command */
-  "t \r",				/* single step */
-  "b %x\r",				/* set a breakpoint */
-  "k %x\r",				/* clear a breakpoint */
-  "c %x\r",				/* set memory to a value */
-  "d %x %d\r",				/* display memory */
-  "$%08X",				/* prompt memory commands use */
-  ".%s %x\r",				/* set a register */
-  ":",					/* delimiter between registers */
-  ". \r",				/* read a register */
-  "mf \r",				/* download command */
-  "RomBug: ",				/* monitor command prompt */
-  ": ",					/* end-of-command delimitor */
-  ".\r"					/* optional command terminator */
-};
-
-struct target_ops rombug_ops ;
-
-static void 
-init_rombug_ops(void)
-{
-  rombug_ops.to_shortname =   "rombug";
-  rombug_ops.to_longname =   "Microware's ROMBUG debug monitor";
-  rombug_ops.to_doc =   "Use a remote computer running the ROMBUG debug monitor.\n\
-Specify the serial device it is connected to (e.g. /dev/ttya).",
-    rombug_ops.to_open =   rombug_open;
-  rombug_ops.to_close =   rombug_close;
-  rombug_ops.to_attach =   0;
-  rombug_ops.to_post_attach = NULL;
-  rombug_ops.to_require_attach = NULL;
-  rombug_ops.to_detach =   rombug_detach;
-  rombug_ops.to_require_detach = NULL;
-  rombug_ops.to_resume =   rombug_resume;
-  rombug_ops.to_wait  =   rombug_wait;
-  rombug_ops.to_post_wait = NULL;
-  rombug_ops.to_fetch_registers  =   rombug_fetch_register;
-  rombug_ops.to_store_registers  =   rombug_store_register;
-  rombug_ops.to_prepare_to_store =   rombug_prepare_to_store;
-  rombug_ops.to_xfer_memory  =   rombug_xfer_inferior_memory;
-  rombug_ops.to_files_info  =   rombug_files_info;
-  rombug_ops.to_insert_breakpoint =   rombug_insert_breakpoint;
-  rombug_ops.to_remove_breakpoint =   rombug_remove_breakpoint;	/* Breakpoints */
-  rombug_ops.to_terminal_init  =   0;
-  rombug_ops.to_terminal_inferior =   0;
-  rombug_ops.to_terminal_ours_for_output =   0;
-  rombug_ops.to_terminal_ours  =   0;
-  rombug_ops.to_terminal_info  =   0;				/* Terminal handling */
-  rombug_ops.to_kill  =   rombug_kill;
-  rombug_ops.to_load  =   rombug_load;			/* load */
-  rombug_ops.to_lookup_symbol =   rombug_link;				/* lookup_symbol */
-  rombug_ops.to_create_inferior =   rombug_create_inferior;
-  rombug_ops.to_post_startup_inferior = NULL;
-  rombug_ops.to_acknowledge_created_inferior = NULL;
-  rombug_ops.to_clone_and_follow_inferior = NULL;
-  rombug_ops.to_post_follow_inferior_by_clone = NULL;
-  rombug_ops.to_insert_fork_catchpoint = NULL;
-  rombug_ops.to_remove_fork_catchpoint = NULL;
-  rombug_ops.to_insert_vfork_catchpoint = NULL;
-  rombug_ops.to_remove_vfork_catchpoint = NULL;
-  rombug_ops.to_has_forked = NULL;
-  rombug_ops.to_has_vforked = NULL;
-  rombug_ops.to_can_follow_vfork_prior_to_exec = NULL;
-  rombug_ops.to_post_follow_vfork = NULL;
-  rombug_ops.to_insert_exec_catchpoint = NULL;
-  rombug_ops.to_remove_exec_catchpoint = NULL;
-  rombug_ops.to_has_execd = NULL;
-  rombug_ops.to_reported_exec_events_per_exec_call = NULL;
-  rombug_ops.to_has_exited = NULL;
-  rombug_ops.to_mourn_inferior =   rombug_mourn_inferior;
-  rombug_ops.to_can_run  =   0;				/* can_run */
-  rombug_ops.to_notice_signals =   0; 				/* notice_signals */
-  rombug_ops.to_thread_alive  =   0;
-  rombug_ops.to_stop  =   0;				/* to_stop */
-  rombug_ops.to_pid_to_exec_file = NULL;
-  rombug_ops.to_core_file_to_sym_file = NULL;
-  rombug_ops.to_stratum =   process_stratum;
-  rombug_ops.DONT_USE =   0;				/* next */
-  rombug_ops.to_has_all_memory =   1;
-  rombug_ops.to_has_memory =   1;
-  rombug_ops.to_has_stack =   1;
-  rombug_ops.to_has_registers =   1;
-  rombug_ops.to_has_execution =   1;				/* has execution */
-  rombug_ops.to_sections =   0;
-  rombug_ops.to_sections_end =   0;				/* Section pointers */
-  rombug_ops.to_magic =   OPS_MAGIC;			/* Always the last thing */
-} 
-
-void
-_initialize_remote_os9k ()
-{
-  init_rombug_ops() ;
-  add_target (&rombug_ops);
-
-  add_show_from_set (
-        add_set_cmd ("hash", no_class, var_boolean, (char *)&hashmark,
-		"Set display of activity while downloading a file.\nWhen enabled, a period \'.\' is displayed.",
-                &setlist),
-	&showlist);
-
-  add_show_from_set (
-        add_set_cmd ("timeout", no_class, var_zinteger,
-                 (char *) &timeout,
-                 "Set timeout in seconds for remote MIPS serial I/O.",
-                 &setlist),
-        &showlist);
-
-  add_show_from_set (
-        add_set_cmd ("remotelog", no_class, var_zinteger,
-                 (char *) &monitor_log,
-                 "Set monitor activity log on(=1) or off(=0).",
-                 &setlist),
-        &showlist);
-
-  add_show_from_set (
-        add_set_cmd ("remotexon", no_class, var_zinteger,
-                 (char *) &tty_xon,
-                 "Set remote tty line XON control",
-                 &setlist),
-        &showlist);
-
-  add_show_from_set (
-        add_set_cmd ("remotexoff", no_class, var_zinteger,
-                 (char *) &tty_xoff,
-                 "Set remote tty line XOFF control",
-                 &setlist),
-        &showlist);
-
-  add_com ("rombug <command>", class_obscure, rombug_command,
-	   "Send a command to the debug monitor."); 
-#if 0
-  add_com ("connect", class_obscure, connect_command,
-   	   "Connect the terminal directly up to a serial based command monitor.\nUse <CR>~. or <CR>~^D to break out.");
-#endif
-}