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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [remote-os9k.c] - Diff between revs 105 and 1765

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/* Remote debugging interface for boot monitors, for GDB.
/* Remote debugging interface for boot monitors, for GDB.
   Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
   Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
 
 
   This file is part of GDB.
   This file is part of GDB.
 
 
   This program is free software; you can redistribute it and/or modify
   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
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   (at your option) any later version.
 
 
   This program is distributed in the hope that it will be useful,
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   GNU General Public License for more details.
 
 
   You should have received a copy of the GNU General Public License
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */
   Boston, MA 02111-1307, USA.  */
 
 
/* This file was derived from remote-eb.c, which did a similar job, but for
/* 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
   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):
   as mentioned in the following comment (left in for comic relief):
 
 
   "This is like remote.c but is for a different situation--
   "This is like remote.c but is for a different situation--
   having a PC running os9000 hook up with a unix machine with
   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
   a serial line, and running ctty com2 on the PC. os9000 has a debug
   monitor called ROMBUG running.  Not to mention that the PC
   monitor called ROMBUG running.  Not to mention that the PC
   has PC/NFS, so it can access the same executables that gdb can,
   has PC/NFS, so it can access the same executables that gdb can,
   over the net in real time."
   over the net in real time."
 
 
   In reality, this module talks to a debug monitor called 'ROMBUG', which
   In reality, this module talks to a debug monitor called 'ROMBUG', which
   We communicate with ROMBUG via a direct serial line, the network version
   We communicate with ROMBUG via a direct serial line, the network version
   of ROMBUG is not available yet.
   of ROMBUG is not available yet.
 */
 */
 
 
/* FIXME This file needs to be rewritten if it's to work again, either
/* FIXME This file needs to be rewritten if it's to work again, either
   to self-contained or to use the new monitor interface.  */
   to self-contained or to use the new monitor interface.  */
 
 
#include "defs.h"
#include "defs.h"
#include "gdbcore.h"
#include "gdbcore.h"
#include "target.h"
#include "target.h"
#include "gdb_wait.h"
#include "gdb_wait.h"
#include <signal.h>
#include <signal.h>
#include "gdb_string.h"
#include "gdb_string.h"
#include <sys/types.h>
#include <sys/types.h>
#include "command.h"
#include "command.h"
#include "serial.h"
#include "serial.h"
#include "monitor.h"
#include "monitor.h"
#include "remote-utils.h"
#include "remote-utils.h"
#include "symtab.h"
#include "symtab.h"
#include "symfile.h"
#include "symfile.h"
#include "objfiles.h"
#include "objfiles.h"
#include "gdb-stabs.h"
#include "gdb-stabs.h"
 
 
struct cmd_list_element *showlist;
struct cmd_list_element *showlist;
extern struct target_ops rombug_ops;    /* Forward declaration */
extern struct target_ops rombug_ops;    /* Forward declaration */
extern struct monitor_ops rombug_cmds;  /* Forward declaration */
extern struct monitor_ops rombug_cmds;  /* Forward declaration */
extern struct cmd_list_element *setlist;
extern struct cmd_list_element *setlist;
extern struct cmd_list_element *unsetlist;
extern struct cmd_list_element *unsetlist;
extern int attach_flag;
extern int attach_flag;
 
 
static void rombug_close ();
static void rombug_close ();
static void rombug_fetch_register ();
static void rombug_fetch_register ();
static void rombug_fetch_registers ();
static void rombug_fetch_registers ();
static void rombug_store_register ();
static void rombug_store_register ();
#if 0
#if 0
static int sr_get_debug ();     /* flag set by "set remotedebug" */
static int sr_get_debug ();     /* flag set by "set remotedebug" */
#endif
#endif
static int hashmark;            /* flag set by "set hash" */
static int hashmark;            /* flag set by "set hash" */
static int rombug_is_open = 0;
static int rombug_is_open = 0;
 
 
/* FIXME: Replace with sr_get_debug ().  */
/* FIXME: Replace with sr_get_debug ().  */
#define LOG_FILE "monitor.log"
#define LOG_FILE "monitor.log"
FILE *log_file;
FILE *log_file;
static int monitor_log = 0;
static int monitor_log = 0;
static int tty_xon = 0;
static int tty_xon = 0;
static int tty_xoff = 0;
static int tty_xoff = 0;
 
 
static int timeout = 10;
static int timeout = 10;
static int is_trace_mode = 0;
static int is_trace_mode = 0;
/* Descriptor for I/O to remote machine.  Initialize it to NULL */
/* Descriptor for I/O to remote machine.  Initialize it to NULL */
static serial_t monitor_desc = NULL;
static serial_t monitor_desc = NULL;
 
 
static CORE_ADDR bufaddr = 0;
static CORE_ADDR bufaddr = 0;
static int buflen = 0;
static int buflen = 0;
static char readbuf[16];
static char readbuf[16];
 
 
/* Send data to monitor.  Works just like printf. */
/* Send data to monitor.  Works just like printf. */
static void
static void
printf_monitor (char *pattern,...)
printf_monitor (char *pattern,...)
{
{
  va_list args;
  va_list args;
  char buf[200];
  char buf[200];
  int i;
  int i;
 
 
  va_start (args, pattern);
  va_start (args, pattern);
 
 
  vsprintf (buf, pattern, args);
  vsprintf (buf, pattern, args);
  va_end (args);
  va_end (args);
 
 
  if (SERIAL_WRITE (monitor_desc, buf, strlen (buf)))
  if (SERIAL_WRITE (monitor_desc, buf, strlen (buf)))
    fprintf (stderr, "SERIAL_WRITE failed: %s\n", safe_strerror (errno));
    fprintf (stderr, "SERIAL_WRITE failed: %s\n", safe_strerror (errno));
}
}
 
 
/* Read a character from the remote system, doing all the fancy timeout stuff */
/* Read a character from the remote system, doing all the fancy timeout stuff */
static int
static int
readchar (timeout)
readchar (timeout)
     int timeout;
     int timeout;
{
{
  int c;
  int c;
 
 
  c = SERIAL_READCHAR (monitor_desc, timeout);
  c = SERIAL_READCHAR (monitor_desc, timeout);
 
 
  if (sr_get_debug ())
  if (sr_get_debug ())
    putchar (c & 0x7f);
    putchar (c & 0x7f);
 
 
  if (monitor_log && isascii (c))
  if (monitor_log && isascii (c))
    putc (c & 0x7f, log_file);
    putc (c & 0x7f, log_file);
 
 
  if (c >= 0)
  if (c >= 0)
    return c & 0x7f;
    return c & 0x7f;
 
 
  if (c == SERIAL_TIMEOUT)
  if (c == SERIAL_TIMEOUT)
    {
    {
      if (timeout == 0)
      if (timeout == 0)
        return c;               /* Polls shouldn't generate timeout errors */
        return c;               /* Polls shouldn't generate timeout errors */
 
 
      error ("Timeout reading from remote system.");
      error ("Timeout reading from remote system.");
    }
    }
 
 
  perror_with_name ("remote-monitor");
  perror_with_name ("remote-monitor");
}
}
 
 
/* Scan input from the remote system, until STRING is found.  If DISCARD is
/* Scan input from the remote system, until STRING is found.  If DISCARD is
   non-zero, then discard non-matching input, else print it out.
   non-zero, then discard non-matching input, else print it out.
   Let the user break out immediately.  */
   Let the user break out immediately.  */
static void
static void
expect (string, discard)
expect (string, discard)
     char *string;
     char *string;
     int discard;
     int discard;
{
{
  char *p = string;
  char *p = string;
  int c;
  int c;
 
 
  if (sr_get_debug ())
  if (sr_get_debug ())
    printf ("Expecting \"%s\"\n", string);
    printf ("Expecting \"%s\"\n", string);
 
 
  immediate_quit = 1;
  immediate_quit = 1;
  while (1)
  while (1)
    {
    {
      c = readchar (timeout);
      c = readchar (timeout);
      if (!isascii (c))
      if (!isascii (c))
        continue;
        continue;
      if (c == *p++)
      if (c == *p++)
        {
        {
          if (*p == '\0')
          if (*p == '\0')
            {
            {
              immediate_quit = 0;
              immediate_quit = 0;
              if (sr_get_debug ())
              if (sr_get_debug ())
                printf ("\nMatched\n");
                printf ("\nMatched\n");
              return;
              return;
            }
            }
        }
        }
      else
      else
        {
        {
          if (!discard)
          if (!discard)
            {
            {
              fwrite (string, 1, (p - 1) - string, stdout);
              fwrite (string, 1, (p - 1) - string, stdout);
              putchar ((char) c);
              putchar ((char) c);
              fflush (stdout);
              fflush (stdout);
            }
            }
          p = string;
          p = string;
        }
        }
    }
    }
}
}
 
 
/* Keep discarding input until we see the ROMBUG prompt.
/* Keep discarding input until we see the ROMBUG prompt.
 
 
   The convention for dealing with the prompt is that you
   The convention for dealing with the prompt is that you
   o give your command
   o give your command
   o *then* wait for the prompt.
   o *then* wait for the prompt.
 
 
   Thus the last thing that a procedure does with the serial line
   Thus the last thing that a procedure does with the serial line
   will be an expect_prompt().  Exception:  rombug_resume does not
   will be an expect_prompt().  Exception:  rombug_resume does not
   wait for the prompt, because the terminal is being handed over
   wait for the prompt, because the terminal is being handed over
   to the inferior.  However, the next thing which happens after that
   to the inferior.  However, the next thing which happens after that
   is a rombug_wait which does wait for the prompt.
   is a rombug_wait which does wait for the prompt.
   Note that this includes abnormal exit, e.g. error().  This is
   Note that this includes abnormal exit, e.g. error().  This is
   necessary to prevent getting into states from which we can't
   necessary to prevent getting into states from which we can't
   recover.  */
   recover.  */
static void
static void
expect_prompt (discard)
expect_prompt (discard)
     int discard;
     int discard;
{
{
  if (monitor_log)
  if (monitor_log)
    /* This is a convenient place to do this.  The idea is to do it often
    /* 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.  */
       enough that we never lose much data if we terminate abnormally.  */
    fflush (log_file);
    fflush (log_file);
 
 
  if (is_trace_mode)
  if (is_trace_mode)
    {
    {
      expect ("trace", discard);
      expect ("trace", discard);
    }
    }
  else
  else
    {
    {
      expect (PROMPT, discard);
      expect (PROMPT, discard);
    }
    }
}
}
 
 
/* Get a hex digit from the remote system & return its value.
/* Get a hex digit from the remote system & return its value.
   If ignore_space is nonzero, ignore spaces (not newline, tab, etc).  */
   If ignore_space is nonzero, ignore spaces (not newline, tab, etc).  */
static int
static int
get_hex_digit (ignore_space)
get_hex_digit (ignore_space)
     int ignore_space;
     int ignore_space;
{
{
  int ch;
  int ch;
  while (1)
  while (1)
    {
    {
      ch = readchar (timeout);
      ch = readchar (timeout);
      if (ch >= '0' && ch <= '9')
      if (ch >= '0' && ch <= '9')
        return ch - '0';
        return ch - '0';
      else if (ch >= 'A' && ch <= 'F')
      else if (ch >= 'A' && ch <= 'F')
        return ch - 'A' + 10;
        return ch - 'A' + 10;
      else if (ch >= 'a' && ch <= 'f')
      else if (ch >= 'a' && ch <= 'f')
        return ch - 'a' + 10;
        return ch - 'a' + 10;
      else if (ch == ' ' && ignore_space)
      else if (ch == ' ' && ignore_space)
        ;
        ;
      else
      else
        {
        {
          expect_prompt (1);
          expect_prompt (1);
          error ("Invalid hex digit from remote system.");
          error ("Invalid hex digit from remote system.");
        }
        }
    }
    }
}
}
 
 
/* Get a byte from monitor and put it in *BYT.  Accept any number
/* Get a byte from monitor and put it in *BYT.  Accept any number
   leading spaces.  */
   leading spaces.  */
static void
static void
get_hex_byte (byt)
get_hex_byte (byt)
     char *byt;
     char *byt;
{
{
  int val;
  int val;
 
 
  val = get_hex_digit (1) << 4;
  val = get_hex_digit (1) << 4;
  val |= get_hex_digit (0);
  val |= get_hex_digit (0);
  *byt = val;
  *byt = val;
}
}
 
 
/* Get N 32-bit words from remote, each preceded by a space,
/* Get N 32-bit words from remote, each preceded by a space,
   and put them in registers starting at REGNO.  */
   and put them in registers starting at REGNO.  */
static void
static void
get_hex_regs (n, regno)
get_hex_regs (n, regno)
     int n;
     int n;
     int regno;
     int regno;
{
{
  long val;
  long val;
  int i;
  int i;
  unsigned char b;
  unsigned char b;
 
 
  for (i = 0; i < n; i++)
  for (i = 0; i < n; i++)
    {
    {
      int j;
      int j;
 
 
      val = 0;
      val = 0;
      for (j = 0; j < 4; j++)
      for (j = 0; j < 4; j++)
        {
        {
          get_hex_byte (&b);
          get_hex_byte (&b);
          if (TARGET_BYTE_ORDER == BIG_ENDIAN)
          if (TARGET_BYTE_ORDER == BIG_ENDIAN)
            val = (val << 8) + b;
            val = (val << 8) + b;
          else
          else
            val = val + (b << (j * 8));
            val = val + (b << (j * 8));
        }
        }
      supply_register (regno++, (char *) &val);
      supply_register (regno++, (char *) &val);
    }
    }
}
}
 
 
/* This is called not only when we first attach, but also when the
/* This is called not only when we first attach, but also when the
   user types "run" after having attached.  */
   user types "run" after having attached.  */
static void
static void
rombug_create_inferior (execfile, args, env)
rombug_create_inferior (execfile, args, env)
     char *execfile;
     char *execfile;
     char *args;
     char *args;
     char **env;
     char **env;
{
{
  int entry_pt;
  int entry_pt;
 
 
  if (args && *args)
  if (args && *args)
    error ("Can't pass arguments to remote ROMBUG process");
    error ("Can't pass arguments to remote ROMBUG process");
 
 
  if (execfile == 0 || exec_bfd == 0)
  if (execfile == 0 || exec_bfd == 0)
    error ("No executable file specified");
    error ("No executable file specified");
 
 
  entry_pt = (int) bfd_get_start_address (exec_bfd);
  entry_pt = (int) bfd_get_start_address (exec_bfd);
 
 
  if (monitor_log)
  if (monitor_log)
    fputs ("\nIn Create_inferior()", log_file);
    fputs ("\nIn Create_inferior()", log_file);
 
 
 
 
/* The "process" (board) is already stopped awaiting our commands, and
/* The "process" (board) is already stopped awaiting our commands, and
   the program is already downloaded.  We just set its PC and go.  */
   the program is already downloaded.  We just set its PC and go.  */
 
 
  init_wait_for_inferior ();
  init_wait_for_inferior ();
  proceed ((CORE_ADDR) entry_pt, TARGET_SIGNAL_DEFAULT, 0);
  proceed ((CORE_ADDR) entry_pt, TARGET_SIGNAL_DEFAULT, 0);
}
}
 
 
/* Open a connection to a remote debugger.
/* Open a connection to a remote debugger.
   NAME is the filename used for communication.  */
   NAME is the filename used for communication.  */
 
 
static char dev_name[100];
static char dev_name[100];
 
 
static void
static void
rombug_open (args, from_tty)
rombug_open (args, from_tty)
     char *args;
     char *args;
     int from_tty;
     int from_tty;
{
{
  if (args == NULL)
  if (args == NULL)
    error ("Use `target RomBug DEVICE-NAME' to use a serial port, or \n\
    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 RomBug HOST-NAME:PORT-NUMBER' to use a network connection.");
 
 
  target_preopen (from_tty);
  target_preopen (from_tty);
 
 
  if (rombug_is_open)
  if (rombug_is_open)
    unpush_target (&rombug_ops);
    unpush_target (&rombug_ops);
 
 
  strcpy (dev_name, args);
  strcpy (dev_name, args);
  monitor_desc = SERIAL_OPEN (dev_name);
  monitor_desc = SERIAL_OPEN (dev_name);
  if (monitor_desc == NULL)
  if (monitor_desc == NULL)
    perror_with_name (dev_name);
    perror_with_name (dev_name);
 
 
  /* if baud rate is set by 'set remotebaud' */
  /* if baud rate is set by 'set remotebaud' */
  if (SERIAL_SETBAUDRATE (monitor_desc, sr_get_baud_rate ()))
  if (SERIAL_SETBAUDRATE (monitor_desc, sr_get_baud_rate ()))
    {
    {
      SERIAL_CLOSE (monitor_desc);
      SERIAL_CLOSE (monitor_desc);
      perror_with_name ("RomBug");
      perror_with_name ("RomBug");
    }
    }
  SERIAL_RAW (monitor_desc);
  SERIAL_RAW (monitor_desc);
  if (tty_xon || tty_xoff)
  if (tty_xon || tty_xoff)
    {
    {
      struct hardware_ttystate
      struct hardware_ttystate
        {
        {
          struct termios t;
          struct termios t;
        }
        }
       *tty_s;
       *tty_s;
 
 
      tty_s = (struct hardware_ttystate *) SERIAL_GET_TTY_STATE (monitor_desc);
      tty_s = (struct hardware_ttystate *) SERIAL_GET_TTY_STATE (monitor_desc);
      if (tty_xon)
      if (tty_xon)
        tty_s->t.c_iflag |= IXON;
        tty_s->t.c_iflag |= IXON;
      if (tty_xoff)
      if (tty_xoff)
        tty_s->t.c_iflag |= IXOFF;
        tty_s->t.c_iflag |= IXOFF;
      SERIAL_SET_TTY_STATE (monitor_desc, (serial_ttystate) tty_s);
      SERIAL_SET_TTY_STATE (monitor_desc, (serial_ttystate) tty_s);
    }
    }
 
 
  rombug_is_open = 1;
  rombug_is_open = 1;
 
 
  log_file = fopen (LOG_FILE, "w");
  log_file = fopen (LOG_FILE, "w");
  if (log_file == NULL)
  if (log_file == NULL)
    perror_with_name (LOG_FILE);
    perror_with_name (LOG_FILE);
 
 
  push_monitor (&rombug_cmds);
  push_monitor (&rombug_cmds);
  printf_monitor ("\r");        /* CR wakes up monitor */
  printf_monitor ("\r");        /* CR wakes up monitor */
  expect_prompt (1);
  expect_prompt (1);
  push_target (&rombug_ops);
  push_target (&rombug_ops);
  attach_flag = 1;
  attach_flag = 1;
 
 
  if (from_tty)
  if (from_tty)
    printf ("Remote %s connected to %s\n", target_shortname,
    printf ("Remote %s connected to %s\n", target_shortname,
            dev_name);
            dev_name);
 
 
  rombug_fetch_registers ();
  rombug_fetch_registers ();
 
 
  printf_monitor ("ov e \r");
  printf_monitor ("ov e \r");
  expect_prompt (1);
  expect_prompt (1);
  bufaddr = 0;
  bufaddr = 0;
  buflen = 0;
  buflen = 0;
}
}
 
 
/*
/*
 * Close out all files and local state before this target loses control.
 * Close out all files and local state before this target loses control.
 */
 */
 
 
static void
static void
rombug_close (quitting)
rombug_close (quitting)
     int quitting;
     int quitting;
{
{
  if (rombug_is_open)
  if (rombug_is_open)
    {
    {
      SERIAL_CLOSE (monitor_desc);
      SERIAL_CLOSE (monitor_desc);
      monitor_desc = NULL;
      monitor_desc = NULL;
      rombug_is_open = 0;
      rombug_is_open = 0;
    }
    }
 
 
  if (log_file)
  if (log_file)
    {
    {
      if (ferror (log_file))
      if (ferror (log_file))
        fprintf (stderr, "Error writing log file.\n");
        fprintf (stderr, "Error writing log file.\n");
      if (fclose (log_file) != 0)
      if (fclose (log_file) != 0)
        fprintf (stderr, "Error closing log file.\n");
        fprintf (stderr, "Error closing log file.\n");
      log_file = 0;
      log_file = 0;
    }
    }
}
}
 
 
int
int
rombug_link (mod_name, text_reloc)
rombug_link (mod_name, text_reloc)
     char *mod_name;
     char *mod_name;
     CORE_ADDR *text_reloc;
     CORE_ADDR *text_reloc;
{
{
  int i, j;
  int i, j;
  unsigned long val;
  unsigned long val;
  unsigned char b;
  unsigned char b;
 
 
  printf_monitor ("l %s \r", mod_name);
  printf_monitor ("l %s \r", mod_name);
  expect_prompt (1);
  expect_prompt (1);
  printf_monitor (".r \r");
  printf_monitor (".r \r");
  expect (REG_DELIM, 1);
  expect (REG_DELIM, 1);
  for (i = 0; i <= 7; i++)
  for (i = 0; i <= 7; i++)
    {
    {
      val = 0;
      val = 0;
      for (j = 0; j < 4; j++)
      for (j = 0; j < 4; j++)
        {
        {
          get_hex_byte (&b);
          get_hex_byte (&b);
          val = (val << 8) + b;
          val = (val << 8) + b;
        }
        }
    }
    }
  expect_prompt (1);
  expect_prompt (1);
  *text_reloc = val;
  *text_reloc = val;
  return 1;
  return 1;
}
}
 
 
/* Terminate the open connection to the remote debugger.
/* Terminate the open connection to the remote debugger.
   Use this when you want to detach and do something else
   Use this when you want to detach and do something else
   with your gdb.  */
   with your gdb.  */
static void
static void
rombug_detach (from_tty)
rombug_detach (from_tty)
     int from_tty;
     int from_tty;
{
{
  if (attach_flag)
  if (attach_flag)
    {
    {
      printf_monitor (GO_CMD);
      printf_monitor (GO_CMD);
      attach_flag = 0;
      attach_flag = 0;
    }
    }
  pop_target ();                /* calls rombug_close to do the real work */
  pop_target ();                /* calls rombug_close to do the real work */
  if (from_tty)
  if (from_tty)
    printf ("Ending remote %s debugging\n", target_shortname);
    printf ("Ending remote %s debugging\n", target_shortname);
}
}
 
 
/*
/*
 * Tell the remote machine to resume.
 * Tell the remote machine to resume.
 */
 */
static void
static void
rombug_resume (pid, step, sig)
rombug_resume (pid, step, sig)
     int pid, step;
     int pid, step;
     enum target_signal sig;
     enum target_signal sig;
{
{
  if (monitor_log)
  if (monitor_log)
    fprintf (log_file, "\nIn Resume (step=%d, sig=%d)\n", step, sig);
    fprintf (log_file, "\nIn Resume (step=%d, sig=%d)\n", step, sig);
 
 
  if (step)
  if (step)
    {
    {
      is_trace_mode = 1;
      is_trace_mode = 1;
      printf_monitor (STEP_CMD);
      printf_monitor (STEP_CMD);
      /* wait for the echo.  **
      /* wait for the echo.  **
         expect (STEP_CMD, 1);
         expect (STEP_CMD, 1);
       */
       */
    }
    }
  else
  else
    {
    {
      printf_monitor (GO_CMD);
      printf_monitor (GO_CMD);
      /* swallow the echo.  **
      /* swallow the echo.  **
         expect (GO_CMD, 1);
         expect (GO_CMD, 1);
       */
       */
    }
    }
  bufaddr = 0;
  bufaddr = 0;
  buflen = 0;
  buflen = 0;
}
}
 
 
/*
/*
 * Wait until the remote machine stops, then return,
 * Wait until the remote machine stops, then return,
 * storing status in status just as `wait' would.
 * storing status in status just as `wait' would.
 */
 */
 
 
static int
static int
rombug_wait (pid, status)
rombug_wait (pid, status)
     int pid;
     int pid;
     struct target_waitstatus *status;
     struct target_waitstatus *status;
{
{
  int old_timeout = timeout;
  int old_timeout = timeout;
  struct section_offsets *offs;
  struct section_offsets *offs;
  CORE_ADDR addr, pc;
  CORE_ADDR addr, pc;
  struct obj_section *obj_sec;
  struct obj_section *obj_sec;
 
 
  if (monitor_log)
  if (monitor_log)
    fputs ("\nIn wait ()", log_file);
    fputs ("\nIn wait ()", log_file);
 
 
  status->kind = TARGET_WAITKIND_EXITED;
  status->kind = TARGET_WAITKIND_EXITED;
  status->value.integer = 0;
  status->value.integer = 0;
 
 
  timeout = -1;                 /* Don't time out -- user program is running. */
  timeout = -1;                 /* Don't time out -- user program is running. */
  expect ("eax:", 0);            /* output any message before register display */
  expect ("eax:", 0);            /* output any message before register display */
  expect_prompt (1);            /* Wait for prompt, outputting extraneous text */
  expect_prompt (1);            /* Wait for prompt, outputting extraneous text */
 
 
  status->kind = TARGET_WAITKIND_STOPPED;
  status->kind = TARGET_WAITKIND_STOPPED;
  status->value.sig = TARGET_SIGNAL_TRAP;
  status->value.sig = TARGET_SIGNAL_TRAP;
  timeout = old_timeout;
  timeout = old_timeout;
  rombug_fetch_registers ();
  rombug_fetch_registers ();
  bufaddr = 0;
  bufaddr = 0;
  buflen = 0;
  buflen = 0;
  pc = read_register (PC_REGNUM);
  pc = read_register (PC_REGNUM);
  addr = read_register (DATABASE_REG);
  addr = read_register (DATABASE_REG);
  obj_sec = find_pc_section (pc);
  obj_sec = find_pc_section (pc);
  if (obj_sec != NULL)
  if (obj_sec != NULL)
    {
    {
      if (obj_sec->objfile != symfile_objfile)
      if (obj_sec->objfile != symfile_objfile)
        new_symfile_objfile (obj_sec->objfile, 1, 0);
        new_symfile_objfile (obj_sec->objfile, 1, 0);
      offs = (struct section_offsets *) alloca (SIZEOF_SECTION_OFFSETS);
      offs = (struct section_offsets *) alloca (SIZEOF_SECTION_OFFSETS);
      memcpy (offs, symfile_objfile->section_offsets, SIZEOF_SECTION_OFFSETS);
      memcpy (offs, symfile_objfile->section_offsets, SIZEOF_SECTION_OFFSETS);
      ANOFFSET (offs, SECT_OFF_DATA) = addr;
      ANOFFSET (offs, SECT_OFF_DATA) = addr;
      ANOFFSET (offs, SECT_OFF_BSS) = addr;
      ANOFFSET (offs, SECT_OFF_BSS) = addr;
 
 
      objfile_relocate (symfile_objfile, offs);
      objfile_relocate (symfile_objfile, offs);
    }
    }
 
 
  return 0;
  return 0;
}
}
 
 
/* Return the name of register number regno in the form input and output by
/* 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.  Currently, register_names just happens to contain exactly what
   monitor wants.  Lets take advantage of that just as long as possible! */
   monitor wants.  Lets take advantage of that just as long as possible! */
 
 
static char *
static char *
get_reg_name (regno)
get_reg_name (regno)
     int regno;
     int regno;
{
{
  static char buf[50];
  static char buf[50];
  char *p;
  char *p;
  char *b;
  char *b;
 
 
  b = buf;
  b = buf;
 
 
  if (regno < 0)
  if (regno < 0)
    return ("");
    return ("");
/*
/*
   for (p = REGISTER_NAME (regno); *p; p++)
   for (p = REGISTER_NAME (regno); *p; p++)
   *b++ = toupper(*p);
   *b++ = toupper(*p);
   *b = '\000';
   *b = '\000';
 */
 */
  p = (char *) REGISTER_NAME (regno);
  p = (char *) REGISTER_NAME (regno);
  return p;
  return p;
/*
/*
   return buf;
   return buf;
 */
 */
}
}
 
 
/* read the remote registers into the block regs.  */
/* read the remote registers into the block regs.  */
 
 
static void
static void
rombug_fetch_registers ()
rombug_fetch_registers ()
{
{
  int regno, j, i;
  int regno, j, i;
  long val;
  long val;
  unsigned char b;
  unsigned char b;
 
 
  printf_monitor (GET_REG);
  printf_monitor (GET_REG);
  expect ("eax:", 1);
  expect ("eax:", 1);
  expect ("\n", 1);
  expect ("\n", 1);
  get_hex_regs (1, 0);
  get_hex_regs (1, 0);
  get_hex_regs (1, 3);
  get_hex_regs (1, 3);
  get_hex_regs (1, 1);
  get_hex_regs (1, 1);
  get_hex_regs (1, 2);
  get_hex_regs (1, 2);
  get_hex_regs (1, 6);
  get_hex_regs (1, 6);
  get_hex_regs (1, 7);
  get_hex_regs (1, 7);
  get_hex_regs (1, 5);
  get_hex_regs (1, 5);
  get_hex_regs (1, 4);
  get_hex_regs (1, 4);
  for (regno = 8; regno <= 15; regno++)
  for (regno = 8; regno <= 15; regno++)
    {
    {
      expect (REG_DELIM, 1);
      expect (REG_DELIM, 1);
      if (regno >= 8 && regno <= 13)
      if (regno >= 8 && regno <= 13)
        {
        {
          val = 0;
          val = 0;
          for (j = 0; j < 2; j++)
          for (j = 0; j < 2; j++)
            {
            {
              get_hex_byte (&b);
              get_hex_byte (&b);
              if (TARGET_BYTE_ORDER == BIG_ENDIAN)
              if (TARGET_BYTE_ORDER == BIG_ENDIAN)
                val = (val << 8) + b;
                val = (val << 8) + b;
              else
              else
                val = val + (b << (j * 8));
                val = val + (b << (j * 8));
            }
            }
 
 
          if (regno == 8)
          if (regno == 8)
            i = 10;
            i = 10;
          if (regno >= 9 && regno <= 12)
          if (regno >= 9 && regno <= 12)
            i = regno + 3;
            i = regno + 3;
          if (regno == 13)
          if (regno == 13)
            i = 11;
            i = 11;
          supply_register (i, (char *) &val);
          supply_register (i, (char *) &val);
        }
        }
      else if (regno == 14)
      else if (regno == 14)
        {
        {
          get_hex_regs (1, PC_REGNUM);
          get_hex_regs (1, PC_REGNUM);
        }
        }
      else if (regno == 15)
      else if (regno == 15)
        {
        {
          get_hex_regs (1, 9);
          get_hex_regs (1, 9);
        }
        }
      else
      else
        {
        {
          val = 0;
          val = 0;
          supply_register (regno, (char *) &val);
          supply_register (regno, (char *) &val);
        }
        }
    }
    }
  is_trace_mode = 0;
  is_trace_mode = 0;
  expect_prompt (1);
  expect_prompt (1);
}
}
 
 
/* Fetch register REGNO, or all registers if REGNO is -1.
/* Fetch register REGNO, or all registers if REGNO is -1.
   Returns errno value.  */
   Returns errno value.  */
static void
static void
rombug_fetch_register (regno)
rombug_fetch_register (regno)
     int regno;
     int regno;
{
{
  int val, j;
  int val, j;
  unsigned char b;
  unsigned char b;
 
 
  if (monitor_log)
  if (monitor_log)
    {
    {
      fprintf (log_file, "\nIn Fetch Register (reg=%s)\n", get_reg_name (regno));
      fprintf (log_file, "\nIn Fetch Register (reg=%s)\n", get_reg_name (regno));
      fflush (log_file);
      fflush (log_file);
    }
    }
 
 
  if (regno < 0)
  if (regno < 0)
    {
    {
      rombug_fetch_registers ();
      rombug_fetch_registers ();
    }
    }
  else
  else
    {
    {
      char *name = get_reg_name (regno);
      char *name = get_reg_name (regno);
      printf_monitor (GET_REG);
      printf_monitor (GET_REG);
      if (regno >= 10 && regno <= 15)
      if (regno >= 10 && regno <= 15)
        {
        {
          expect ("\n", 1);
          expect ("\n", 1);
          expect ("\n", 1);
          expect ("\n", 1);
          expect (name, 1);
          expect (name, 1);
          expect (REG_DELIM, 1);
          expect (REG_DELIM, 1);
          val = 0;
          val = 0;
          for (j = 0; j < 2; j++)
          for (j = 0; j < 2; j++)
            {
            {
              get_hex_byte (&b);
              get_hex_byte (&b);
              if (TARGET_BYTE_ORDER == BIG_ENDIAN)
              if (TARGET_BYTE_ORDER == BIG_ENDIAN)
                val = (val << 8) + b;
                val = (val << 8) + b;
              else
              else
                val = val + (b << (j * 8));
                val = val + (b << (j * 8));
            }
            }
          supply_register (regno, (char *) &val);
          supply_register (regno, (char *) &val);
        }
        }
      else if (regno == 8 || regno == 9)
      else if (regno == 8 || regno == 9)
        {
        {
          expect ("\n", 1);
          expect ("\n", 1);
          expect ("\n", 1);
          expect ("\n", 1);
          expect ("\n", 1);
          expect ("\n", 1);
          expect (name, 1);
          expect (name, 1);
          expect (REG_DELIM, 1);
          expect (REG_DELIM, 1);
          get_hex_regs (1, regno);
          get_hex_regs (1, regno);
        }
        }
      else
      else
        {
        {
          expect (name, 1);
          expect (name, 1);
          expect (REG_DELIM, 1);
          expect (REG_DELIM, 1);
          expect ("\n", 1);
          expect ("\n", 1);
          get_hex_regs (1, 0);
          get_hex_regs (1, 0);
          get_hex_regs (1, 3);
          get_hex_regs (1, 3);
          get_hex_regs (1, 1);
          get_hex_regs (1, 1);
          get_hex_regs (1, 2);
          get_hex_regs (1, 2);
          get_hex_regs (1, 6);
          get_hex_regs (1, 6);
          get_hex_regs (1, 7);
          get_hex_regs (1, 7);
          get_hex_regs (1, 5);
          get_hex_regs (1, 5);
          get_hex_regs (1, 4);
          get_hex_regs (1, 4);
        }
        }
      expect_prompt (1);
      expect_prompt (1);
    }
    }
  return;
  return;
}
}
 
 
/* Store the remote registers from the contents of the block REGS.  */
/* Store the remote registers from the contents of the block REGS.  */
 
 
static void
static void
rombug_store_registers ()
rombug_store_registers ()
{
{
  int regno;
  int regno;
 
 
  for (regno = 0; regno <= PC_REGNUM; regno++)
  for (regno = 0; regno <= PC_REGNUM; regno++)
    rombug_store_register (regno);
    rombug_store_register (regno);
 
 
  registers_changed ();
  registers_changed ();
}
}
 
 
/* Store register REGNO, or all if REGNO == 0.
/* Store register REGNO, or all if REGNO == 0.
   return errno value.  */
   return errno value.  */
static void
static void
rombug_store_register (regno)
rombug_store_register (regno)
     int regno;
     int regno;
{
{
  char *name;
  char *name;
 
 
  if (monitor_log)
  if (monitor_log)
    fprintf (log_file, "\nIn Store_register (regno=%d)\n", regno);
    fprintf (log_file, "\nIn Store_register (regno=%d)\n", regno);
 
 
  if (regno == -1)
  if (regno == -1)
    rombug_store_registers ();
    rombug_store_registers ();
  else
  else
    {
    {
      if (sr_get_debug ())
      if (sr_get_debug ())
        printf ("Setting register %s to 0x%x\n", get_reg_name (regno), read_register (regno));
        printf ("Setting register %s to 0x%x\n", get_reg_name (regno), read_register (regno));
 
 
      name = get_reg_name (regno);
      name = get_reg_name (regno);
      if (name == 0)
      if (name == 0)
        return;
        return;
      printf_monitor (SET_REG, name, read_register (regno));
      printf_monitor (SET_REG, name, read_register (regno));
 
 
      is_trace_mode = 0;
      is_trace_mode = 0;
      expect_prompt (1);
      expect_prompt (1);
    }
    }
}
}
 
 
/* Get ready to modify the registers array.  On machines which store
/* Get ready to modify the registers array.  On machines which store
   individual registers, this doesn't need to do anything.  On machines
   individual registers, this doesn't need to do anything.  On machines
   which store all the registers in one fell swoop, this makes sure
   which store all the registers in one fell swoop, this makes sure
   that registers contains all the registers from the program being
   that registers contains all the registers from the program being
   debugged.  */
   debugged.  */
 
 
static void
static void
rombug_prepare_to_store ()
rombug_prepare_to_store ()
{
{
  /* Do nothing, since we can store individual regs */
  /* Do nothing, since we can store individual regs */
}
}
 
 
static void
static void
rombug_files_info ()
rombug_files_info ()
{
{
  printf ("\tAttached to %s at %d baud.\n",
  printf ("\tAttached to %s at %d baud.\n",
          dev_name, sr_get_baud_rate ());
          dev_name, sr_get_baud_rate ());
}
}
 
 
/* Copy LEN bytes of data from debugger memory at MYADDR
/* Copy LEN bytes of data from debugger memory at MYADDR
   to inferior's memory at MEMADDR.  Returns length moved.  */
   to inferior's memory at MEMADDR.  Returns length moved.  */
static int
static int
rombug_write_inferior_memory (memaddr, myaddr, len)
rombug_write_inferior_memory (memaddr, myaddr, len)
     CORE_ADDR memaddr;
     CORE_ADDR memaddr;
     unsigned char *myaddr;
     unsigned char *myaddr;
     int len;
     int len;
{
{
  int i;
  int i;
  char buf[10];
  char buf[10];
 
 
  if (monitor_log)
  if (monitor_log)
    fprintf (log_file, "\nIn Write_inferior_memory (memaddr=%x, len=%d)\n", memaddr, len);
    fprintf (log_file, "\nIn Write_inferior_memory (memaddr=%x, len=%d)\n", memaddr, len);
 
 
  printf_monitor (MEM_SET_CMD, memaddr);
  printf_monitor (MEM_SET_CMD, memaddr);
  for (i = 0; i < len; i++)
  for (i = 0; i < len; i++)
    {
    {
      expect (CMD_DELIM, 1);
      expect (CMD_DELIM, 1);
      printf_monitor ("%x \r", myaddr[i]);
      printf_monitor ("%x \r", myaddr[i]);
      if (sr_get_debug ())
      if (sr_get_debug ())
        printf ("\nSet 0x%x to 0x%x\n", memaddr + i, myaddr[i]);
        printf ("\nSet 0x%x to 0x%x\n", memaddr + i, myaddr[i]);
    }
    }
  expect (CMD_DELIM, 1);
  expect (CMD_DELIM, 1);
  if (CMD_END)
  if (CMD_END)
    printf_monitor (CMD_END);
    printf_monitor (CMD_END);
  is_trace_mode = 0;
  is_trace_mode = 0;
  expect_prompt (1);
  expect_prompt (1);
 
 
  bufaddr = 0;
  bufaddr = 0;
  buflen = 0;
  buflen = 0;
  return len;
  return len;
}
}
 
 
/* Read LEN bytes from inferior memory at MEMADDR.  Put the result
/* Read LEN bytes from inferior memory at MEMADDR.  Put the result
   at debugger address MYADDR.  Returns length moved.  */
   at debugger address MYADDR.  Returns length moved.  */
static int
static int
rombug_read_inferior_memory (memaddr, myaddr, len)
rombug_read_inferior_memory (memaddr, myaddr, len)
     CORE_ADDR memaddr;
     CORE_ADDR memaddr;
     char *myaddr;
     char *myaddr;
     int len;
     int len;
{
{
  int i, j;
  int i, j;
 
 
  /* Number of bytes read so far.  */
  /* Number of bytes read so far.  */
  int count;
  int count;
 
 
  /* Starting address of this pass.  */
  /* Starting address of this pass.  */
  unsigned long startaddr;
  unsigned long startaddr;
 
 
  /* Number of bytes to read in this pass.  */
  /* Number of bytes to read in this pass.  */
  int len_this_pass;
  int len_this_pass;
 
 
  if (monitor_log)
  if (monitor_log)
    fprintf (log_file, "\nIn Read_inferior_memory (memaddr=%x, len=%d)\n", memaddr, len);
    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
  /* Note that this code works correctly if startaddr is just less
     than UINT_MAX (well, really CORE_ADDR_MAX if there was such a
     than UINT_MAX (well, really CORE_ADDR_MAX if there was such a
     thing).  That is, something like
     thing).  That is, something like
     rombug_read_bytes (CORE_ADDR_MAX - 4, foo, 4)
     rombug_read_bytes (CORE_ADDR_MAX - 4, foo, 4)
     works--it never adds len To memaddr and gets 0.  */
     works--it never adds len To memaddr and gets 0.  */
  /* However, something like
  /* However, something like
     rombug_read_bytes (CORE_ADDR_MAX - 3, foo, 4)
     rombug_read_bytes (CORE_ADDR_MAX - 3, foo, 4)
     doesn't need to work.  Detect it and give up if there's an attempt
     doesn't need to work.  Detect it and give up if there's an attempt
     to do that.  */
     to do that.  */
  if (((memaddr - 1) + len) < memaddr)
  if (((memaddr - 1) + len) < memaddr)
    {
    {
      errno = EIO;
      errno = EIO;
      return 0;
      return 0;
    }
    }
  if (bufaddr <= memaddr && (memaddr + len) <= (bufaddr + buflen))
  if (bufaddr <= memaddr && (memaddr + len) <= (bufaddr + buflen))
    {
    {
      memcpy (myaddr, &readbuf[memaddr - bufaddr], len);
      memcpy (myaddr, &readbuf[memaddr - bufaddr], len);
      return len;
      return len;
    }
    }
 
 
  startaddr = memaddr;
  startaddr = memaddr;
  count = 0;
  count = 0;
  while (count < len)
  while (count < len)
    {
    {
      len_this_pass = 16;
      len_this_pass = 16;
      if ((startaddr % 16) != 0)
      if ((startaddr % 16) != 0)
        len_this_pass -= startaddr % 16;
        len_this_pass -= startaddr % 16;
      if (len_this_pass > (len - count))
      if (len_this_pass > (len - count))
        len_this_pass = (len - count);
        len_this_pass = (len - count);
      if (sr_get_debug ())
      if (sr_get_debug ())
        printf ("\nDisplay %d bytes at %x\n", len_this_pass, startaddr);
        printf ("\nDisplay %d bytes at %x\n", len_this_pass, startaddr);
 
 
      printf_monitor (MEM_DIS_CMD, startaddr, 8);
      printf_monitor (MEM_DIS_CMD, startaddr, 8);
      expect ("- ", 1);
      expect ("- ", 1);
      for (i = 0; i < 16; i++)
      for (i = 0; i < 16; i++)
        {
        {
          get_hex_byte (&readbuf[i]);
          get_hex_byte (&readbuf[i]);
        }
        }
      bufaddr = startaddr;
      bufaddr = startaddr;
      buflen = 16;
      buflen = 16;
      memcpy (&myaddr[count], readbuf, len_this_pass);
      memcpy (&myaddr[count], readbuf, len_this_pass);
      count += len_this_pass;
      count += len_this_pass;
      startaddr += len_this_pass;
      startaddr += len_this_pass;
      expect (CMD_DELIM, 1);
      expect (CMD_DELIM, 1);
    }
    }
  if (CMD_END)
  if (CMD_END)
    printf_monitor (CMD_END);
    printf_monitor (CMD_END);
  is_trace_mode = 0;
  is_trace_mode = 0;
  expect_prompt (1);
  expect_prompt (1);
 
 
  return len;
  return len;
}
}
 
 
/* FIXME-someday!  merge these two.  */
/* FIXME-someday!  merge these two.  */
static int
static int
rombug_xfer_inferior_memory (memaddr, myaddr, len, write, target)
rombug_xfer_inferior_memory (memaddr, myaddr, len, write, target)
     CORE_ADDR memaddr;
     CORE_ADDR memaddr;
     char *myaddr;
     char *myaddr;
     int len;
     int len;
     int write;
     int write;
     struct target_ops *target; /* ignored */
     struct target_ops *target; /* ignored */
{
{
  if (write)
  if (write)
    return rombug_write_inferior_memory (memaddr, myaddr, len);
    return rombug_write_inferior_memory (memaddr, myaddr, len);
  else
  else
    return rombug_read_inferior_memory (memaddr, myaddr, len);
    return rombug_read_inferior_memory (memaddr, myaddr, len);
}
}
 
 
static void
static void
rombug_kill (args, from_tty)
rombug_kill (args, from_tty)
     char *args;
     char *args;
     int from_tty;
     int from_tty;
{
{
  return;                       /* ignore attempts to kill target system */
  return;                       /* ignore attempts to kill target system */
}
}
 
 
/* Clean up when a program exits.
/* Clean up when a program exits.
   The program actually lives on in the remote processor's RAM, and may be
   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
   run again without a download.  Don't leave it full of breakpoint
   instructions.  */
   instructions.  */
 
 
static void
static void
rombug_mourn_inferior ()
rombug_mourn_inferior ()
{
{
  remove_breakpoints ();
  remove_breakpoints ();
  generic_mourn_inferior ();    /* Do all the proper things now */
  generic_mourn_inferior ();    /* Do all the proper things now */
}
}
 
 
#define MAX_MONITOR_BREAKPOINTS 16
#define MAX_MONITOR_BREAKPOINTS 16
 
 
static CORE_ADDR breakaddr[MAX_MONITOR_BREAKPOINTS] =
static CORE_ADDR breakaddr[MAX_MONITOR_BREAKPOINTS] =
{0};
{0};
 
 
static int
static int
rombug_insert_breakpoint (addr, shadow)
rombug_insert_breakpoint (addr, shadow)
     CORE_ADDR addr;
     CORE_ADDR addr;
     char *shadow;
     char *shadow;
{
{
  int i;
  int i;
  CORE_ADDR bp_addr = addr;
  CORE_ADDR bp_addr = addr;
  int bp_size = 0;
  int bp_size = 0;
 
 
  if (monitor_log)
  if (monitor_log)
    fprintf (log_file, "\nIn Insert_breakpoint (addr=%x)\n", addr);
    fprintf (log_file, "\nIn Insert_breakpoint (addr=%x)\n", addr);
  BREAKPOINT_FROM_PC (&bp_addr, &bp_size);
  BREAKPOINT_FROM_PC (&bp_addr, &bp_size);
 
 
  for (i = 0; i <= MAX_MONITOR_BREAKPOINTS; i++)
  for (i = 0; i <= MAX_MONITOR_BREAKPOINTS; i++)
    if (breakaddr[i] == 0)
    if (breakaddr[i] == 0)
      {
      {
        breakaddr[i] = addr;
        breakaddr[i] = addr;
        if (sr_get_debug ())
        if (sr_get_debug ())
          printf ("Breakpoint at %x\n", addr);
          printf ("Breakpoint at %x\n", addr);
        rombug_read_inferior_memory (bp_addr, shadow, bp_size);
        rombug_read_inferior_memory (bp_addr, shadow, bp_size);
        printf_monitor (SET_BREAK_CMD, addr);
        printf_monitor (SET_BREAK_CMD, addr);
        is_trace_mode = 0;
        is_trace_mode = 0;
        expect_prompt (1);
        expect_prompt (1);
        return 0;
        return 0;
      }
      }
 
 
  fprintf (stderr, "Too many breakpoints (> 16) for monitor\n");
  fprintf (stderr, "Too many breakpoints (> 16) for monitor\n");
  return 1;
  return 1;
}
}
 
 
/*
/*
 * _remove_breakpoint -- Tell the monitor to remove a breakpoint
 * _remove_breakpoint -- Tell the monitor to remove a breakpoint
 */
 */
static int
static int
rombug_remove_breakpoint (addr, shadow)
rombug_remove_breakpoint (addr, shadow)
     CORE_ADDR addr;
     CORE_ADDR addr;
     char *shadow;
     char *shadow;
{
{
  int i;
  int i;
 
 
  if (monitor_log)
  if (monitor_log)
    fprintf (log_file, "\nIn Remove_breakpoint (addr=%x)\n", addr);
    fprintf (log_file, "\nIn Remove_breakpoint (addr=%x)\n", addr);
 
 
  for (i = 0; i < MAX_MONITOR_BREAKPOINTS; i++)
  for (i = 0; i < MAX_MONITOR_BREAKPOINTS; i++)
    if (breakaddr[i] == addr)
    if (breakaddr[i] == addr)
      {
      {
        breakaddr[i] = 0;
        breakaddr[i] = 0;
        printf_monitor (CLR_BREAK_CMD, addr);
        printf_monitor (CLR_BREAK_CMD, addr);
        is_trace_mode = 0;
        is_trace_mode = 0;
        expect_prompt (1);
        expect_prompt (1);
        return 0;
        return 0;
      }
      }
 
 
  fprintf (stderr, "Can't find breakpoint associated with 0x%x\n", addr);
  fprintf (stderr, "Can't find breakpoint associated with 0x%x\n", addr);
  return 1;
  return 1;
}
}
 
 
/* Load a file. This is usually an srecord, which is ascii. No
/* Load a file. This is usually an srecord, which is ascii. No
   protocol, just sent line by line. */
   protocol, just sent line by line. */
 
 
#define DOWNLOAD_LINE_SIZE 100
#define DOWNLOAD_LINE_SIZE 100
static void
static void
rombug_load (arg)
rombug_load (arg)
     char *arg;
     char *arg;
{
{
/* this part comment out for os9* */
/* this part comment out for os9* */
#if 0
#if 0
  FILE *download;
  FILE *download;
  char buf[DOWNLOAD_LINE_SIZE];
  char buf[DOWNLOAD_LINE_SIZE];
  int i, bytes_read;
  int i, bytes_read;
 
 
  if (sr_get_debug ())
  if (sr_get_debug ())
    printf ("Loading %s to monitor\n", arg);
    printf ("Loading %s to monitor\n", arg);
 
 
  download = fopen (arg, "r");
  download = fopen (arg, "r");
  if (download == NULL)
  if (download == NULL)
    {
    {
      error (sprintf (buf, "%s Does not exist", arg));
      error (sprintf (buf, "%s Does not exist", arg));
      return;
      return;
    }
    }
 
 
  printf_monitor (LOAD_CMD);
  printf_monitor (LOAD_CMD);
/*  expect ("Waiting for S-records from host... ", 1); */
/*  expect ("Waiting for S-records from host... ", 1); */
 
 
  while (!feof (download))
  while (!feof (download))
    {
    {
      bytes_read = fread (buf, sizeof (char), DOWNLOAD_LINE_SIZE, download);
      bytes_read = fread (buf, sizeof (char), DOWNLOAD_LINE_SIZE, download);
      if (hashmark)
      if (hashmark)
        {
        {
          putchar ('.');
          putchar ('.');
          fflush (stdout);
          fflush (stdout);
        }
        }
 
 
      if (SERIAL_WRITE (monitor_desc, buf, bytes_read))
      if (SERIAL_WRITE (monitor_desc, buf, bytes_read))
        {
        {
          fprintf (stderr, "SERIAL_WRITE failed: (while downloading) %s\n", safe_strerror (errno));
          fprintf (stderr, "SERIAL_WRITE failed: (while downloading) %s\n", safe_strerror (errno));
          break;
          break;
        }
        }
      i = 0;
      i = 0;
      while (i++ <= 200000)
      while (i++ <= 200000)
        {
        {
        };                      /* Ugly HACK, probably needs flow control */
        };                      /* Ugly HACK, probably needs flow control */
      if (bytes_read < DOWNLOAD_LINE_SIZE)
      if (bytes_read < DOWNLOAD_LINE_SIZE)
        {
        {
          if (!feof (download))
          if (!feof (download))
            error ("Only read %d bytes\n", bytes_read);
            error ("Only read %d bytes\n", bytes_read);
          break;
          break;
        }
        }
    }
    }
 
 
  if (hashmark)
  if (hashmark)
    {
    {
      putchar ('\n');
      putchar ('\n');
    }
    }
  if (!feof (download))
  if (!feof (download))
    error ("Never got EOF while downloading");
    error ("Never got EOF while downloading");
  fclose (download);
  fclose (download);
#endif /* 0 */
#endif /* 0 */
}
}
 
 
/* Put a command string, in args, out to MONITOR.
/* Put a command string, in args, out to MONITOR.
   Output from MONITOR is placed on the users terminal until the prompt
   Output from MONITOR is placed on the users terminal until the prompt
   is seen. */
   is seen. */
 
 
static void
static void
rombug_command (args, fromtty)
rombug_command (args, fromtty)
     char *args;
     char *args;
     int fromtty;
     int fromtty;
{
{
  if (monitor_desc == NULL)
  if (monitor_desc == NULL)
    error ("monitor target not open.");
    error ("monitor target not open.");
 
 
  if (monitor_log)
  if (monitor_log)
    fprintf (log_file, "\nIn command (args=%s)\n", args);
    fprintf (log_file, "\nIn command (args=%s)\n", args);
 
 
  if (!args)
  if (!args)
    error ("Missing command.");
    error ("Missing command.");
 
 
  printf_monitor ("%s\r", args);
  printf_monitor ("%s\r", args);
  expect_prompt (0);
  expect_prompt (0);
}
}
 
 
#if 0
#if 0
/* Connect the user directly to MONITOR.  This command acts just like the
/* Connect the user directly to MONITOR.  This command acts just like the
   'cu' or 'tip' command.  Use <CR>~. or <CR>~^D to break out.  */
   'cu' or 'tip' command.  Use <CR>~. or <CR>~^D to break out.  */
 
 
static struct ttystate ttystate;
static struct ttystate ttystate;
 
 
static void
static void
cleanup_tty ()
cleanup_tty ()
{
{
  printf ("\r\n[Exiting connect mode]\r\n");
  printf ("\r\n[Exiting connect mode]\r\n");
  /*SERIAL_RESTORE(0, &ttystate); */
  /*SERIAL_RESTORE(0, &ttystate); */
}
}
 
 
static void
static void
connect_command (args, fromtty)
connect_command (args, fromtty)
     char *args;
     char *args;
     int fromtty;
     int fromtty;
{
{
  fd_set readfds;
  fd_set readfds;
  int numfds;
  int numfds;
  int c;
  int c;
  char cur_esc = 0;
  char cur_esc = 0;
 
 
  dont_repeat ();
  dont_repeat ();
 
 
  if (monitor_desc == NULL)
  if (monitor_desc == NULL)
    error ("monitor target not open.");
    error ("monitor target not open.");
 
 
  if (args)
  if (args)
    fprintf ("This command takes no args.  They have been ignored.\n");
    fprintf ("This command takes no args.  They have been ignored.\n");
 
 
  printf ("[Entering connect mode.  Use ~. or ~^D to escape]\n");
  printf ("[Entering connect mode.  Use ~. or ~^D to escape]\n");
 
 
  serial_raw (0, &ttystate);
  serial_raw (0, &ttystate);
 
 
  make_cleanup (cleanup_tty, 0);
  make_cleanup (cleanup_tty, 0);
 
 
  FD_ZERO (&readfds);
  FD_ZERO (&readfds);
 
 
  while (1)
  while (1)
    {
    {
      do
      do
        {
        {
          FD_SET (0, &readfds);
          FD_SET (0, &readfds);
          FD_SET (DEPRECATED_SERIAL_FD (monitor_desc), &readfds);
          FD_SET (DEPRECATED_SERIAL_FD (monitor_desc), &readfds);
          numfds = select (sizeof (readfds) * 8, &readfds, 0, 0, 0);
          numfds = select (sizeof (readfds) * 8, &readfds, 0, 0, 0);
        }
        }
      while (numfds == 0);
      while (numfds == 0);
 
 
      if (numfds < 0)
      if (numfds < 0)
        perror_with_name ("select");
        perror_with_name ("select");
 
 
      if (FD_ISSET (0, &readfds))
      if (FD_ISSET (0, &readfds))
        {                       /* tty input, send to monitor */
        {                       /* tty input, send to monitor */
          c = getchar ();
          c = getchar ();
          if (c < 0)
          if (c < 0)
            perror_with_name ("connect");
            perror_with_name ("connect");
 
 
          printf_monitor ("%c", c);
          printf_monitor ("%c", c);
          switch (cur_esc)
          switch (cur_esc)
            {
            {
            case 0:
            case 0:
              if (c == '\r')
              if (c == '\r')
                cur_esc = c;
                cur_esc = c;
              break;
              break;
            case '\r':
            case '\r':
              if (c == '~')
              if (c == '~')
                cur_esc = c;
                cur_esc = c;
              else
              else
                cur_esc = 0;
                cur_esc = 0;
              break;
              break;
            case '~':
            case '~':
              if (c == '.' || c == '\004')
              if (c == '.' || c == '\004')
                return;
                return;
              else
              else
                cur_esc = 0;
                cur_esc = 0;
            }
            }
        }
        }
 
 
      if (FD_ISSET (DEPRECATED_SERIAL_FD (monitor_desc), &readfds))
      if (FD_ISSET (DEPRECATED_SERIAL_FD (monitor_desc), &readfds))
        {
        {
          while (1)
          while (1)
            {
            {
              c = readchar (0);
              c = readchar (0);
              if (c < 0)
              if (c < 0)
                break;
                break;
              putchar (c);
              putchar (c);
            }
            }
          fflush (stdout);
          fflush (stdout);
        }
        }
    }
    }
}
}
#endif
#endif
 
 
/*
/*
 * Define the monitor command strings. Since these are passed directly
 * Define the monitor command strings. Since these are passed directly
 * through to a printf style function, we need can include formatting
 * through to a printf style function, we need can include formatting
 * strings. We also need a CR or LF on the end.
 * strings. We also need a CR or LF on the end.
 */
 */
#warning FIXME: monitor interface pattern strings, stale struct decl
#warning FIXME: monitor interface pattern strings, stale struct decl
struct monitor_ops rombug_cmds =
struct monitor_ops rombug_cmds =
{
{
  "g \r",                       /* execute or usually GO command */
  "g \r",                       /* execute or usually GO command */
  "g \r",                       /* continue command */
  "g \r",                       /* continue command */
  "t \r",                       /* single step */
  "t \r",                       /* single step */
  "b %x\r",                     /* set a breakpoint */
  "b %x\r",                     /* set a breakpoint */
  "k %x\r",                     /* clear a breakpoint */
  "k %x\r",                     /* clear a breakpoint */
  "c %x\r",                     /* set memory to a value */
  "c %x\r",                     /* set memory to a value */
  "d %x %d\r",                  /* display memory */
  "d %x %d\r",                  /* display memory */
  "$%08X",                      /* prompt memory commands use */
  "$%08X",                      /* prompt memory commands use */
  ".%s %x\r",                   /* set a register */
  ".%s %x\r",                   /* set a register */
  ":",                          /* delimiter between registers */
  ":",                          /* delimiter between registers */
  ". \r",                       /* read a register */
  ". \r",                       /* read a register */
  "mf \r",                      /* download command */
  "mf \r",                      /* download command */
  "RomBug: ",                   /* monitor command prompt */
  "RomBug: ",                   /* monitor command prompt */
  ": ",                         /* end-of-command delimitor */
  ": ",                         /* end-of-command delimitor */
  ".\r"                         /* optional command terminator */
  ".\r"                         /* optional command terminator */
};
};
 
 
struct target_ops rombug_ops;
struct target_ops rombug_ops;
 
 
static void
static void
init_rombug_ops (void)
init_rombug_ops (void)
{
{
  rombug_ops.to_shortname = "rombug";
  rombug_ops.to_shortname = "rombug";
  rombug_ops.to_longname = "Microware's ROMBUG debug monitor";
  rombug_ops.to_longname = "Microware's ROMBUG debug monitor";
  rombug_ops.to_doc = "Use a remote computer running the ROMBUG debug monitor.\n\
  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).",
Specify the serial device it is connected to (e.g. /dev/ttya).",
    rombug_ops.to_open = rombug_open;
    rombug_ops.to_open = rombug_open;
  rombug_ops.to_close = rombug_close;
  rombug_ops.to_close = rombug_close;
  rombug_ops.to_attach = 0;
  rombug_ops.to_attach = 0;
  rombug_ops.to_post_attach = NULL;
  rombug_ops.to_post_attach = NULL;
  rombug_ops.to_require_attach = NULL;
  rombug_ops.to_require_attach = NULL;
  rombug_ops.to_detach = rombug_detach;
  rombug_ops.to_detach = rombug_detach;
  rombug_ops.to_require_detach = NULL;
  rombug_ops.to_require_detach = NULL;
  rombug_ops.to_resume = rombug_resume;
  rombug_ops.to_resume = rombug_resume;
  rombug_ops.to_wait = rombug_wait;
  rombug_ops.to_wait = rombug_wait;
  rombug_ops.to_post_wait = NULL;
  rombug_ops.to_post_wait = NULL;
  rombug_ops.to_fetch_registers = rombug_fetch_register;
  rombug_ops.to_fetch_registers = rombug_fetch_register;
  rombug_ops.to_store_registers = rombug_store_register;
  rombug_ops.to_store_registers = rombug_store_register;
  rombug_ops.to_prepare_to_store = rombug_prepare_to_store;
  rombug_ops.to_prepare_to_store = rombug_prepare_to_store;
  rombug_ops.to_xfer_memory = rombug_xfer_inferior_memory;
  rombug_ops.to_xfer_memory = rombug_xfer_inferior_memory;
  rombug_ops.to_files_info = rombug_files_info;
  rombug_ops.to_files_info = rombug_files_info;
  rombug_ops.to_insert_breakpoint = rombug_insert_breakpoint;
  rombug_ops.to_insert_breakpoint = rombug_insert_breakpoint;
  rombug_ops.to_remove_breakpoint = rombug_remove_breakpoint;   /* Breakpoints */
  rombug_ops.to_remove_breakpoint = rombug_remove_breakpoint;   /* Breakpoints */
  rombug_ops.to_terminal_init = 0;
  rombug_ops.to_terminal_init = 0;
  rombug_ops.to_terminal_inferior = 0;
  rombug_ops.to_terminal_inferior = 0;
  rombug_ops.to_terminal_ours_for_output = 0;
  rombug_ops.to_terminal_ours_for_output = 0;
  rombug_ops.to_terminal_ours = 0;
  rombug_ops.to_terminal_ours = 0;
  rombug_ops.to_terminal_info = 0;       /* Terminal handling */
  rombug_ops.to_terminal_info = 0;       /* Terminal handling */
  rombug_ops.to_kill = rombug_kill;
  rombug_ops.to_kill = rombug_kill;
  rombug_ops.to_load = rombug_load;     /* load */
  rombug_ops.to_load = rombug_load;     /* load */
  rombug_ops.to_lookup_symbol = rombug_link;    /* lookup_symbol */
  rombug_ops.to_lookup_symbol = rombug_link;    /* lookup_symbol */
  rombug_ops.to_create_inferior = rombug_create_inferior;
  rombug_ops.to_create_inferior = rombug_create_inferior;
  rombug_ops.to_post_startup_inferior = NULL;
  rombug_ops.to_post_startup_inferior = NULL;
  rombug_ops.to_acknowledge_created_inferior = NULL;
  rombug_ops.to_acknowledge_created_inferior = NULL;
  rombug_ops.to_clone_and_follow_inferior = NULL;
  rombug_ops.to_clone_and_follow_inferior = NULL;
  rombug_ops.to_post_follow_inferior_by_clone = NULL;
  rombug_ops.to_post_follow_inferior_by_clone = NULL;
  rombug_ops.to_insert_fork_catchpoint = NULL;
  rombug_ops.to_insert_fork_catchpoint = NULL;
  rombug_ops.to_remove_fork_catchpoint = NULL;
  rombug_ops.to_remove_fork_catchpoint = NULL;
  rombug_ops.to_insert_vfork_catchpoint = NULL;
  rombug_ops.to_insert_vfork_catchpoint = NULL;
  rombug_ops.to_remove_vfork_catchpoint = NULL;
  rombug_ops.to_remove_vfork_catchpoint = NULL;
  rombug_ops.to_has_forked = NULL;
  rombug_ops.to_has_forked = NULL;
  rombug_ops.to_has_vforked = NULL;
  rombug_ops.to_has_vforked = NULL;
  rombug_ops.to_can_follow_vfork_prior_to_exec = NULL;
  rombug_ops.to_can_follow_vfork_prior_to_exec = NULL;
  rombug_ops.to_post_follow_vfork = NULL;
  rombug_ops.to_post_follow_vfork = NULL;
  rombug_ops.to_insert_exec_catchpoint = NULL;
  rombug_ops.to_insert_exec_catchpoint = NULL;
  rombug_ops.to_remove_exec_catchpoint = NULL;
  rombug_ops.to_remove_exec_catchpoint = NULL;
  rombug_ops.to_has_execd = NULL;
  rombug_ops.to_has_execd = NULL;
  rombug_ops.to_reported_exec_events_per_exec_call = NULL;
  rombug_ops.to_reported_exec_events_per_exec_call = NULL;
  rombug_ops.to_has_exited = NULL;
  rombug_ops.to_has_exited = NULL;
  rombug_ops.to_mourn_inferior = rombug_mourn_inferior;
  rombug_ops.to_mourn_inferior = rombug_mourn_inferior;
  rombug_ops.to_can_run = 0;     /* can_run */
  rombug_ops.to_can_run = 0;     /* can_run */
  rombug_ops.to_notice_signals = 0;      /* notice_signals */
  rombug_ops.to_notice_signals = 0;      /* notice_signals */
  rombug_ops.to_thread_alive = 0;
  rombug_ops.to_thread_alive = 0;
  rombug_ops.to_stop = 0;        /* to_stop */
  rombug_ops.to_stop = 0;        /* to_stop */
  rombug_ops.to_pid_to_exec_file = NULL;
  rombug_ops.to_pid_to_exec_file = NULL;
  rombug_ops.to_core_file_to_sym_file = NULL;
  rombug_ops.to_core_file_to_sym_file = NULL;
  rombug_ops.to_stratum = process_stratum;
  rombug_ops.to_stratum = process_stratum;
  rombug_ops.DONT_USE = 0;       /* next */
  rombug_ops.DONT_USE = 0;       /* next */
  rombug_ops.to_has_all_memory = 1;
  rombug_ops.to_has_all_memory = 1;
  rombug_ops.to_has_memory = 1;
  rombug_ops.to_has_memory = 1;
  rombug_ops.to_has_stack = 1;
  rombug_ops.to_has_stack = 1;
  rombug_ops.to_has_registers = 1;
  rombug_ops.to_has_registers = 1;
  rombug_ops.to_has_execution = 1;      /* has execution */
  rombug_ops.to_has_execution = 1;      /* has execution */
  rombug_ops.to_sections = 0;
  rombug_ops.to_sections = 0;
  rombug_ops.to_sections_end = 0;        /* Section pointers */
  rombug_ops.to_sections_end = 0;        /* Section pointers */
  rombug_ops.to_magic = OPS_MAGIC;      /* Always the last thing */
  rombug_ops.to_magic = OPS_MAGIC;      /* Always the last thing */
}
}
 
 
void
void
_initialize_remote_os9k ()
_initialize_remote_os9k ()
{
{
  init_rombug_ops ();
  init_rombug_ops ();
  add_target (&rombug_ops);
  add_target (&rombug_ops);
 
 
  add_show_from_set (
  add_show_from_set (
             add_set_cmd ("hash", no_class, var_boolean, (char *) &hashmark,
             add_set_cmd ("hash", no_class, var_boolean, (char *) &hashmark,
                          "Set display of activity while downloading a file.\nWhen enabled, a period \'.\' is displayed.",
                          "Set display of activity while downloading a file.\nWhen enabled, a period \'.\' is displayed.",
                          &setlist),
                          &setlist),
                      &showlist);
                      &showlist);
 
 
  add_show_from_set (
  add_show_from_set (
                      add_set_cmd ("timeout", no_class, var_zinteger,
                      add_set_cmd ("timeout", no_class, var_zinteger,
                                   (char *) &timeout,
                                   (char *) &timeout,
                       "Set timeout in seconds for remote MIPS serial I/O.",
                       "Set timeout in seconds for remote MIPS serial I/O.",
                                   &setlist),
                                   &setlist),
                      &showlist);
                      &showlist);
 
 
  add_show_from_set (
  add_show_from_set (
                      add_set_cmd ("remotelog", no_class, var_zinteger,
                      add_set_cmd ("remotelog", no_class, var_zinteger,
                                   (char *) &monitor_log,
                                   (char *) &monitor_log,
                              "Set monitor activity log on(=1) or off(=0).",
                              "Set monitor activity log on(=1) or off(=0).",
                                   &setlist),
                                   &setlist),
                      &showlist);
                      &showlist);
 
 
  add_show_from_set (
  add_show_from_set (
                      add_set_cmd ("remotexon", no_class, var_zinteger,
                      add_set_cmd ("remotexon", no_class, var_zinteger,
                                   (char *) &tty_xon,
                                   (char *) &tty_xon,
                                   "Set remote tty line XON control",
                                   "Set remote tty line XON control",
                                   &setlist),
                                   &setlist),
                      &showlist);
                      &showlist);
 
 
  add_show_from_set (
  add_show_from_set (
                      add_set_cmd ("remotexoff", no_class, var_zinteger,
                      add_set_cmd ("remotexoff", no_class, var_zinteger,
                                   (char *) &tty_xoff,
                                   (char *) &tty_xoff,
                                   "Set remote tty line XOFF control",
                                   "Set remote tty line XOFF control",
                                   &setlist),
                                   &setlist),
                      &showlist);
                      &showlist);
 
 
  add_com ("rombug <command>", class_obscure, rombug_command,
  add_com ("rombug <command>", class_obscure, rombug_command,
           "Send a command to the debug monitor.");
           "Send a command to the debug monitor.");
#if 0
#if 0
  add_com ("connect", class_obscure, connect_command,
  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.");
           "Connect the terminal directly up to a serial based command monitor.\nUse <CR>~. or <CR>~^D to break out.");
#endif
#endif
}
}
 
 

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