/* Remote debugging interface for AMD 29000 EBMON on IBM PC, for GDB.
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/* Remote debugging interface for AMD 29000 EBMON on IBM PC, for GDB.
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Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
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Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
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Contributed by Cygnus Support. Written by Jim Kingdon for Cygnus.
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Contributed by Cygnus Support. Written by Jim Kingdon for Cygnus.
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|
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This file is part of GDB.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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Boston, MA 02111-1307, USA. */
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/* This is like remote.c but is for an esoteric situation--
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/* This is like remote.c but is for an esoteric situation--
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having a a29k board in a PC hooked up to a unix machine with
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having a a29k board in a PC hooked up to a unix machine with
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a serial line, and running ctty com1 on the PC, through which
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a serial line, and running ctty com1 on the PC, through which
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the unix machine can run ebmon. Not to mention that the PC
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the unix machine can run ebmon. Not to mention that the PC
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has PC/NFS, so it can access the same executables that gdb can,
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has PC/NFS, so it can access the same executables that gdb can,
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over the net in real time. */
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over the net in real time. */
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|
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#include "defs.h"
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#include "defs.h"
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#include "gdb_string.h"
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#include "gdb_string.h"
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|
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#include "inferior.h"
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#include "inferior.h"
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#include "bfd.h"
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#include "bfd.h"
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#include "symfile.h"
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#include "symfile.h"
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#include "gdb_wait.h"
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#include "gdb_wait.h"
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#include "value.h"
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#include "value.h"
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#include <ctype.h>
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#include <ctype.h>
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#include <fcntl.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <signal.h>
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#include <errno.h>
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#include <errno.h>
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#include "terminal.h"
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#include "terminal.h"
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#include "target.h"
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#include "target.h"
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#include "gdbcore.h"
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#include "gdbcore.h"
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extern struct target_ops eb_ops; /* Forward declaration */
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extern struct target_ops eb_ops; /* Forward declaration */
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static void eb_close ();
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static void eb_close ();
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#define LOG_FILE "eb.log"
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#define LOG_FILE "eb.log"
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#if defined (LOG_FILE)
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#if defined (LOG_FILE)
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FILE *log_file;
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FILE *log_file;
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#endif
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#endif
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static int timeout = 24;
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static int timeout = 24;
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/* Descriptor for I/O to remote machine. Initialize it to -1 so that
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/* Descriptor for I/O to remote machine. Initialize it to -1 so that
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eb_open knows that we don't have a file open when the program
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eb_open knows that we don't have a file open when the program
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starts. */
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starts. */
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int eb_desc = -1;
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int eb_desc = -1;
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|
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/* stream which is fdopen'd from eb_desc. Only valid when
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/* stream which is fdopen'd from eb_desc. Only valid when
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eb_desc != -1. */
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eb_desc != -1. */
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FILE *eb_stream;
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FILE *eb_stream;
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/* Read a character from the remote system, doing all the fancy
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/* Read a character from the remote system, doing all the fancy
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timeout stuff. */
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timeout stuff. */
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static int
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static int
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readchar ()
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readchar ()
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{
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{
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char buf;
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char buf;
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buf = '\0';
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buf = '\0';
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#ifdef HAVE_TERMIO
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#ifdef HAVE_TERMIO
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/* termio does the timeout for us. */
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/* termio does the timeout for us. */
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read (eb_desc, &buf, 1);
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read (eb_desc, &buf, 1);
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#else
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#else
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alarm (timeout);
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alarm (timeout);
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if (read (eb_desc, &buf, 1) < 0)
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if (read (eb_desc, &buf, 1) < 0)
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{
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{
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if (errno == EINTR)
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if (errno == EINTR)
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error ("Timeout reading from remote system.");
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error ("Timeout reading from remote system.");
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else
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else
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perror_with_name ("remote");
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perror_with_name ("remote");
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}
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}
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alarm (0);
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alarm (0);
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#endif
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#endif
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if (buf == '\0')
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if (buf == '\0')
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error ("Timeout reading from remote system.");
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error ("Timeout reading from remote system.");
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#if defined (LOG_FILE)
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#if defined (LOG_FILE)
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putc (buf & 0x7f, log_file);
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putc (buf & 0x7f, log_file);
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#endif
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#endif
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return buf & 0x7f;
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return buf & 0x7f;
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}
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}
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/* Keep discarding input from the remote system, until STRING is found.
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/* Keep discarding input from the remote system, until STRING is found.
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Let the user break out immediately. */
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Let the user break out immediately. */
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static void
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static void
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expect (string)
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expect (string)
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char *string;
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char *string;
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{
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{
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char *p = string;
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char *p = string;
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immediate_quit = 1;
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immediate_quit = 1;
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while (1)
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while (1)
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{
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{
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if (readchar () == *p)
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if (readchar () == *p)
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{
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{
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p++;
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p++;
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if (*p == '\0')
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if (*p == '\0')
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{
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{
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immediate_quit = 0;
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immediate_quit = 0;
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return;
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return;
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}
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}
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}
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}
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else
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else
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p = string;
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p = string;
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}
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}
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}
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}
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/* Keep discarding input until we see the ebmon prompt.
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/* Keep discarding input until we see the ebmon prompt.
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The convention for dealing with the prompt is that you
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The convention for dealing with the prompt is that you
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o give your command
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o give your command
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o *then* wait for the prompt.
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o *then* wait for the prompt.
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Thus the last thing that a procedure does with the serial line
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Thus the last thing that a procedure does with the serial line
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will be an expect_prompt(). Exception: eb_resume does not
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will be an expect_prompt(). Exception: eb_resume does not
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wait for the prompt, because the terminal is being handed over
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wait for the prompt, because the terminal is being handed over
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to the inferior. However, the next thing which happens after that
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to the inferior. However, the next thing which happens after that
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is a eb_wait which does wait for the prompt.
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is a eb_wait which does wait for the prompt.
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Note that this includes abnormal exit, e.g. error(). This is
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Note that this includes abnormal exit, e.g. error(). This is
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necessary to prevent getting into states from which we can't
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necessary to prevent getting into states from which we can't
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recover. */
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recover. */
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static void
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static void
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expect_prompt ()
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expect_prompt ()
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{
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{
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#if defined (LOG_FILE)
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#if defined (LOG_FILE)
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/* This is a convenient place to do this. The idea is to do it often
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/* This is a convenient place to do this. The idea is to do it often
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enough that we never lose much data if we terminate abnormally. */
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enough that we never lose much data if we terminate abnormally. */
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fflush (log_file);
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fflush (log_file);
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#endif
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#endif
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expect ("\n# ");
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expect ("\n# ");
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}
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}
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/* Get a hex digit from the remote system & return its value.
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/* Get a hex digit from the remote system & return its value.
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If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */
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If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */
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static int
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static int
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get_hex_digit (ignore_space)
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get_hex_digit (ignore_space)
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int ignore_space;
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int ignore_space;
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{
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{
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int ch;
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int ch;
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while (1)
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while (1)
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{
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{
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ch = readchar ();
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ch = readchar ();
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if (ch >= '0' && ch <= '9')
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if (ch >= '0' && ch <= '9')
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return ch - '0';
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return ch - '0';
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else if (ch >= 'A' && ch <= 'F')
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else if (ch >= 'A' && ch <= 'F')
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return ch - 'A' + 10;
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return ch - 'A' + 10;
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else if (ch >= 'a' && ch <= 'f')
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else if (ch >= 'a' && ch <= 'f')
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return ch - 'a' + 10;
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return ch - 'a' + 10;
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else if (ch == ' ' && ignore_space)
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else if (ch == ' ' && ignore_space)
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;
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;
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else
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else
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{
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{
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expect_prompt ();
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expect_prompt ();
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error ("Invalid hex digit from remote system.");
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error ("Invalid hex digit from remote system.");
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}
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}
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}
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}
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}
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}
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/* Get a byte from eb_desc and put it in *BYT. Accept any number
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/* Get a byte from eb_desc and put it in *BYT. Accept any number
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leading spaces. */
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leading spaces. */
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static void
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static void
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get_hex_byte (byt)
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get_hex_byte (byt)
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char *byt;
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char *byt;
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{
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{
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int val;
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int val;
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val = get_hex_digit (1) << 4;
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val = get_hex_digit (1) << 4;
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val |= get_hex_digit (0);
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val |= get_hex_digit (0);
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*byt = val;
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*byt = val;
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}
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}
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/* Get N 32-bit words from remote, each preceded by a space,
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/* Get N 32-bit words from remote, each preceded by a space,
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and put them in registers starting at REGNO. */
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and put them in registers starting at REGNO. */
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static void
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static void
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get_hex_regs (n, regno)
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get_hex_regs (n, regno)
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int n;
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int n;
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int regno;
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int regno;
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{
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{
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long val;
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long val;
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int i;
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int i;
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for (i = 0; i < n; i++)
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for (i = 0; i < n; i++)
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{
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{
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int j;
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int j;
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val = 0;
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val = 0;
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for (j = 0; j < 8; j++)
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for (j = 0; j < 8; j++)
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val = (val << 4) + get_hex_digit (j == 0);
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val = (val << 4) + get_hex_digit (j == 0);
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supply_register (regno++, (char *) &val);
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supply_register (regno++, (char *) &val);
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}
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}
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}
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}
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/* Called when SIGALRM signal sent due to alarm() timeout. */
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/* Called when SIGALRM signal sent due to alarm() timeout. */
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#ifndef HAVE_TERMIO
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#ifndef HAVE_TERMIO
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#ifndef __STDC__
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#ifndef __STDC__
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#define volatile
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#define volatile
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/**/
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/**/
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#endif
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#endif
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volatile int n_alarms;
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volatile int n_alarms;
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void
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void
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eb_timer ()
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eb_timer ()
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{
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{
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#if 0
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#if 0
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if (kiodebug)
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if (kiodebug)
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printf ("eb_timer called\n");
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printf ("eb_timer called\n");
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#endif
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#endif
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n_alarms++;
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n_alarms++;
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}
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}
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#endif
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#endif
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/* malloc'd name of the program on the remote system. */
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/* malloc'd name of the program on the remote system. */
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static char *prog_name = NULL;
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static char *prog_name = NULL;
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/* Nonzero if we have loaded the file ("yc") and not yet issued a "gi"
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/* Nonzero if we have loaded the file ("yc") and not yet issued a "gi"
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command. "gi" is supposed to happen exactly once for each "yc". */
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command. "gi" is supposed to happen exactly once for each "yc". */
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static int need_gi = 0;
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static int need_gi = 0;
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|
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/* Number of SIGTRAPs we need to simulate. That is, the next
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/* Number of SIGTRAPs we need to simulate. That is, the next
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NEED_ARTIFICIAL_TRAP calls to eb_wait should just return
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NEED_ARTIFICIAL_TRAP calls to eb_wait should just return
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SIGTRAP without actually waiting for anything. */
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SIGTRAP without actually waiting for anything. */
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static int need_artificial_trap = 0;
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static int need_artificial_trap = 0;
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|
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/* This is called not only when we first attach, but also when the
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/* This is called not only when we first attach, but also when the
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user types "run" after having attached. */
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user types "run" after having attached. */
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static void
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static void
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eb_create_inferior (execfile, args, env)
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eb_create_inferior (execfile, args, env)
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char *execfile;
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char *execfile;
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char *args;
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char *args;
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char **env;
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char **env;
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{
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{
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int entry_pt;
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int entry_pt;
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|
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if (args && *args)
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if (args && *args)
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error ("Can't pass arguments to remote EBMON process");
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error ("Can't pass arguments to remote EBMON process");
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|
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if (execfile == 0 || exec_bfd == 0)
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if (execfile == 0 || exec_bfd == 0)
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error ("No executable file specified");
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error ("No executable file specified");
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|
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entry_pt = (int) bfd_get_start_address (exec_bfd);
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entry_pt = (int) bfd_get_start_address (exec_bfd);
|
|
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{
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{
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/* OK, now read in the file. Y=read, C=COFF, D=no symbols
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/* OK, now read in the file. Y=read, C=COFF, D=no symbols
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0=start address, %s=filename. */
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0=start address, %s=filename. */
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|
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fprintf (eb_stream, "YC D,0:%s", prog_name);
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fprintf (eb_stream, "YC D,0:%s", prog_name);
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|
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if (args != NULL)
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if (args != NULL)
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fprintf (eb_stream, " %s", args);
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fprintf (eb_stream, " %s", args);
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|
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fprintf (eb_stream, "\n");
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fprintf (eb_stream, "\n");
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fflush (eb_stream);
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fflush (eb_stream);
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|
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expect_prompt ();
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expect_prompt ();
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need_gi = 1;
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need_gi = 1;
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}
|
}
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|
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/* The "process" (board) is already stopped awaiting our commands, and
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/* 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. */
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clear_proceed_status ();
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clear_proceed_status ();
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|
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/* Tell wait_for_inferior that we've started a new process. */
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/* Tell wait_for_inferior that we've started a new process. */
|
init_wait_for_inferior ();
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init_wait_for_inferior ();
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|
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/* Set up the "saved terminal modes" of the inferior
|
/* Set up the "saved terminal modes" of the inferior
|
based on what modes we are starting it with. */
|
based on what modes we are starting it with. */
|
target_terminal_init ();
|
target_terminal_init ();
|
|
|
/* Install inferior's terminal modes. */
|
/* Install inferior's terminal modes. */
|
target_terminal_inferior ();
|
target_terminal_inferior ();
|
|
|
/* insert_step_breakpoint (); FIXME, do we need this? */
|
/* insert_step_breakpoint (); FIXME, do we need this? */
|
proceed ((CORE_ADDR) entry_pt, TARGET_SIGNAL_DEFAULT, 0); /* Let 'er rip... */
|
proceed ((CORE_ADDR) entry_pt, TARGET_SIGNAL_DEFAULT, 0); /* Let 'er rip... */
|
}
|
}
|
|
|
/* Translate baud rates from integers to damn B_codes. Unix should
|
/* Translate baud rates from integers to damn B_codes. Unix should
|
have outgrown this crap years ago, but even POSIX wouldn't buck it. */
|
have outgrown this crap years ago, but even POSIX wouldn't buck it. */
|
|
|
#ifndef B19200
|
#ifndef B19200
|
#define B19200 EXTA
|
#define B19200 EXTA
|
#endif
|
#endif
|
#ifndef B38400
|
#ifndef B38400
|
#define B38400 EXTB
|
#define B38400 EXTB
|
#endif
|
#endif
|
|
|
struct
|
struct
|
{
|
{
|
int rate, damn_b;
|
int rate, damn_b;
|
}
|
}
|
baudtab[] =
|
baudtab[] =
|
{
|
{
|
{
|
{
|
0, B0
|
0, B0
|
}
|
}
|
,
|
,
|
{
|
{
|
50, B50
|
50, B50
|
}
|
}
|
,
|
,
|
{
|
{
|
75, B75
|
75, B75
|
}
|
}
|
,
|
,
|
{
|
{
|
110, B110
|
110, B110
|
}
|
}
|
,
|
,
|
{
|
{
|
134, B134
|
134, B134
|
}
|
}
|
,
|
,
|
{
|
{
|
150, B150
|
150, B150
|
}
|
}
|
,
|
,
|
{
|
{
|
200, B200
|
200, B200
|
}
|
}
|
,
|
,
|
{
|
{
|
300, B300
|
300, B300
|
}
|
}
|
,
|
,
|
{
|
{
|
600, B600
|
600, B600
|
}
|
}
|
,
|
,
|
{
|
{
|
1200, B1200
|
1200, B1200
|
}
|
}
|
,
|
,
|
{
|
{
|
1800, B1800
|
1800, B1800
|
}
|
}
|
,
|
,
|
{
|
{
|
2400, B2400
|
2400, B2400
|
}
|
}
|
,
|
,
|
{
|
{
|
4800, B4800
|
4800, B4800
|
}
|
}
|
,
|
,
|
{
|
{
|
9600, B9600
|
9600, B9600
|
}
|
}
|
,
|
,
|
{
|
{
|
19200, B19200
|
19200, B19200
|
}
|
}
|
,
|
,
|
{
|
{
|
38400, B38400
|
38400, B38400
|
}
|
}
|
,
|
,
|
{
|
{
|
-1, -1
|
-1, -1
|
}
|
}
|
,
|
,
|
};
|
};
|
|
|
int
|
int
|
damn_b (rate)
|
damn_b (rate)
|
int rate;
|
int rate;
|
{
|
{
|
int i;
|
int i;
|
|
|
for (i = 0; baudtab[i].rate != -1; i++)
|
for (i = 0; baudtab[i].rate != -1; i++)
|
if (rate == baudtab[i].rate)
|
if (rate == baudtab[i].rate)
|
return baudtab[i].damn_b;
|
return baudtab[i].damn_b;
|
return B38400; /* Random */
|
return B38400; /* Random */
|
}
|
}
|
|
|
|
|
/* Open a connection to a remote debugger.
|
/* Open a connection to a remote debugger.
|
NAME is the filename used for communication, then a space,
|
NAME is the filename used for communication, then a space,
|
then the name of the program as we should name it to EBMON. */
|
then the name of the program as we should name it to EBMON. */
|
|
|
static int baudrate = 9600;
|
static int baudrate = 9600;
|
static char *dev_name;
|
static char *dev_name;
|
void
|
void
|
eb_open (name, from_tty)
|
eb_open (name, from_tty)
|
char *name;
|
char *name;
|
int from_tty;
|
int from_tty;
|
{
|
{
|
TERMINAL sg;
|
TERMINAL sg;
|
|
|
char *p;
|
char *p;
|
|
|
target_preopen (from_tty);
|
target_preopen (from_tty);
|
|
|
/* Find the first whitespace character, it separates dev_name from
|
/* Find the first whitespace character, it separates dev_name from
|
prog_name. */
|
prog_name. */
|
if (name == 0)
|
if (name == 0)
|
goto erroid;
|
goto erroid;
|
|
|
for (p = name;
|
for (p = name;
|
*p != '\0' && !isspace (*p); p++)
|
*p != '\0' && !isspace (*p); p++)
|
;
|
;
|
if (*p == '\0')
|
if (*p == '\0')
|
erroid:
|
erroid:
|
error ("\
|
error ("\
|
Please include the name of the device for the serial port,\n\
|
Please include the name of the device for the serial port,\n\
|
the baud rate, and the name of the program to run on the remote system.");
|
the baud rate, and the name of the program to run on the remote system.");
|
dev_name = alloca (p - name + 1);
|
dev_name = alloca (p - name + 1);
|
strncpy (dev_name, name, p - name);
|
strncpy (dev_name, name, p - name);
|
dev_name[p - name] = '\0';
|
dev_name[p - name] = '\0';
|
|
|
/* Skip over the whitespace after dev_name */
|
/* Skip over the whitespace after dev_name */
|
for (; isspace (*p); p++)
|
for (; isspace (*p); p++)
|
/*EMPTY */ ;
|
/*EMPTY */ ;
|
|
|
if (1 != sscanf (p, "%d ", &baudrate))
|
if (1 != sscanf (p, "%d ", &baudrate))
|
goto erroid;
|
goto erroid;
|
|
|
/* Skip the number and then the spaces */
|
/* Skip the number and then the spaces */
|
for (; isdigit (*p); p++)
|
for (; isdigit (*p); p++)
|
/*EMPTY */ ;
|
/*EMPTY */ ;
|
for (; isspace (*p); p++)
|
for (; isspace (*p); p++)
|
/*EMPTY */ ;
|
/*EMPTY */ ;
|
|
|
if (prog_name != NULL)
|
if (prog_name != NULL)
|
free (prog_name);
|
free (prog_name);
|
prog_name = savestring (p, strlen (p));
|
prog_name = savestring (p, strlen (p));
|
|
|
eb_close (0);
|
eb_close (0);
|
|
|
eb_desc = open (dev_name, O_RDWR);
|
eb_desc = open (dev_name, O_RDWR);
|
if (eb_desc < 0)
|
if (eb_desc < 0)
|
perror_with_name (dev_name);
|
perror_with_name (dev_name);
|
ioctl (eb_desc, TIOCGETP, &sg);
|
ioctl (eb_desc, TIOCGETP, &sg);
|
#ifdef HAVE_TERMIO
|
#ifdef HAVE_TERMIO
|
sg.c_cc[VMIN] = 0; /* read with timeout. */
|
sg.c_cc[VMIN] = 0; /* read with timeout. */
|
sg.c_cc[VTIME] = timeout * 10;
|
sg.c_cc[VTIME] = timeout * 10;
|
sg.c_lflag &= ~(ICANON | ECHO);
|
sg.c_lflag &= ~(ICANON | ECHO);
|
sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate);
|
sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate);
|
#else
|
#else
|
sg.sg_ispeed = damn_b (baudrate);
|
sg.sg_ispeed = damn_b (baudrate);
|
sg.sg_ospeed = damn_b (baudrate);
|
sg.sg_ospeed = damn_b (baudrate);
|
sg.sg_flags |= RAW | ANYP;
|
sg.sg_flags |= RAW | ANYP;
|
sg.sg_flags &= ~ECHO;
|
sg.sg_flags &= ~ECHO;
|
#endif
|
#endif
|
|
|
ioctl (eb_desc, TIOCSETP, &sg);
|
ioctl (eb_desc, TIOCSETP, &sg);
|
eb_stream = fdopen (eb_desc, "r+");
|
eb_stream = fdopen (eb_desc, "r+");
|
|
|
push_target (&eb_ops);
|
push_target (&eb_ops);
|
if (from_tty)
|
if (from_tty)
|
printf ("Remote %s debugging %s using %s\n", target_shortname,
|
printf ("Remote %s debugging %s using %s\n", target_shortname,
|
prog_name, dev_name);
|
prog_name, dev_name);
|
|
|
#ifndef HAVE_TERMIO
|
#ifndef HAVE_TERMIO
|
#ifndef NO_SIGINTERRUPT
|
#ifndef NO_SIGINTERRUPT
|
/* Cause SIGALRM's to make reads fail with EINTR instead of resuming
|
/* Cause SIGALRM's to make reads fail with EINTR instead of resuming
|
the read. */
|
the read. */
|
if (siginterrupt (SIGALRM, 1) != 0)
|
if (siginterrupt (SIGALRM, 1) != 0)
|
perror ("eb_open: error in siginterrupt");
|
perror ("eb_open: error in siginterrupt");
|
#endif
|
#endif
|
|
|
/* Set up read timeout timer. */
|
/* Set up read timeout timer. */
|
if ((void (*)) signal (SIGALRM, eb_timer) == (void (*)) -1)
|
if ((void (*)) signal (SIGALRM, eb_timer) == (void (*)) -1)
|
perror ("eb_open: error in signal");
|
perror ("eb_open: error in signal");
|
#endif
|
#endif
|
|
|
#if defined (LOG_FILE)
|
#if defined (LOG_FILE)
|
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);
|
#endif
|
#endif
|
|
|
/* Hello? Are you there? */
|
/* Hello? Are you there? */
|
write (eb_desc, "\n", 1);
|
write (eb_desc, "\n", 1);
|
|
|
expect_prompt ();
|
expect_prompt ();
|
}
|
}
|
|
|
/* 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
|
eb_close (quitting)
|
eb_close (quitting)
|
int quitting;
|
int quitting;
|
{
|
{
|
|
|
/* Due to a bug in Unix, fclose closes not only the stdio stream,
|
/* Due to a bug in Unix, fclose closes not only the stdio stream,
|
but also the file descriptor. So we don't actually close
|
but also the file descriptor. So we don't actually close
|
eb_desc. */
|
eb_desc. */
|
if (eb_stream)
|
if (eb_stream)
|
fclose (eb_stream); /* This also closes eb_desc */
|
fclose (eb_stream); /* This also closes eb_desc */
|
if (eb_desc >= 0)
|
if (eb_desc >= 0)
|
/* close (eb_desc); */
|
/* close (eb_desc); */
|
|
|
/* Do not try to close eb_desc again, later in the program. */
|
/* Do not try to close eb_desc again, later in the program. */
|
eb_stream = NULL;
|
eb_stream = NULL;
|
eb_desc = -1;
|
eb_desc = -1;
|
|
|
#if defined (LOG_FILE)
|
#if defined (LOG_FILE)
|
if (log_file)
|
if (log_file)
|
{
|
{
|
if (ferror (log_file))
|
if (ferror (log_file))
|
printf ("Error writing log file.\n");
|
printf ("Error writing log file.\n");
|
if (fclose (log_file) != 0)
|
if (fclose (log_file) != 0)
|
printf ("Error closing log file.\n");
|
printf ("Error closing log file.\n");
|
}
|
}
|
#endif
|
#endif
|
}
|
}
|
|
|
/* 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. */
|
void
|
void
|
eb_detach (from_tty)
|
eb_detach (from_tty)
|
int from_tty;
|
int from_tty;
|
{
|
{
|
pop_target (); /* calls eb_close to do the real work */
|
pop_target (); /* calls eb_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. */
|
|
|
void
|
void
|
eb_resume (pid, step, sig)
|
eb_resume (pid, step, sig)
|
int pid, step;
|
int pid, step;
|
enum target_signal sig;
|
enum target_signal sig;
|
{
|
{
|
if (step)
|
if (step)
|
{
|
{
|
write (eb_desc, "t 1,s\n", 6);
|
write (eb_desc, "t 1,s\n", 6);
|
/* Wait for the echo. */
|
/* Wait for the echo. */
|
expect ("t 1,s\r");
|
expect ("t 1,s\r");
|
/* Then comes a line containing the instruction we stepped to. */
|
/* Then comes a line containing the instruction we stepped to. */
|
expect ("\n@");
|
expect ("\n@");
|
/* Then we get the prompt. */
|
/* Then we get the prompt. */
|
expect_prompt ();
|
expect_prompt ();
|
|
|
/* Force the next eb_wait to return a trap. Not doing anything
|
/* Force the next eb_wait to return a trap. Not doing anything
|
about I/O from the target means that the user has to type
|
about I/O from the target means that the user has to type
|
"continue" to see any. This should be fixed. */
|
"continue" to see any. This should be fixed. */
|
need_artificial_trap = 1;
|
need_artificial_trap = 1;
|
}
|
}
|
else
|
else
|
{
|
{
|
if (need_gi)
|
if (need_gi)
|
{
|
{
|
need_gi = 0;
|
need_gi = 0;
|
write (eb_desc, "gi\n", 3);
|
write (eb_desc, "gi\n", 3);
|
|
|
/* Swallow the echo of "gi". */
|
/* Swallow the echo of "gi". */
|
expect ("gi\r");
|
expect ("gi\r");
|
}
|
}
|
else
|
else
|
{
|
{
|
write (eb_desc, "GR\n", 3);
|
write (eb_desc, "GR\n", 3);
|
/* Swallow the echo. */
|
/* Swallow the echo. */
|
expect ("GR\r");
|
expect ("GR\r");
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* 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. */
|
|
|
int
|
int
|
eb_wait (status)
|
eb_wait (status)
|
struct target_waitstatus *status;
|
struct target_waitstatus *status;
|
{
|
{
|
/* Strings to look for. '?' means match any single character.
|
/* Strings to look for. '?' means match any single character.
|
Note that with the algorithm we use, the initial character
|
Note that with the algorithm we use, the initial character
|
of the string cannot recur in the string, or we will not
|
of the string cannot recur in the string, or we will not
|
find some cases of the string in the input. */
|
find some cases of the string in the input. */
|
|
|
static char bpt[] = "Invalid interrupt taken - #0x50 - ";
|
static char bpt[] = "Invalid interrupt taken - #0x50 - ";
|
/* It would be tempting to look for "\n[__exit + 0x8]\n"
|
/* It would be tempting to look for "\n[__exit + 0x8]\n"
|
but that requires loading symbols with "yc i" and even if
|
but that requires loading symbols with "yc i" and even if
|
we did do that we don't know that the file has symbols. */
|
we did do that we don't know that the file has symbols. */
|
static char exitmsg[] = "\n@????????I JMPTI GR121,LR0";
|
static char exitmsg[] = "\n@????????I JMPTI GR121,LR0";
|
char *bp = bpt;
|
char *bp = bpt;
|
char *ep = exitmsg;
|
char *ep = exitmsg;
|
|
|
/* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. */
|
/* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. */
|
char swallowed[50];
|
char swallowed[50];
|
/* Current position in swallowed. */
|
/* Current position in swallowed. */
|
char *swallowed_p = swallowed;
|
char *swallowed_p = swallowed;
|
|
|
int ch;
|
int ch;
|
int ch_handled;
|
int ch_handled;
|
|
|
int old_timeout = timeout;
|
int old_timeout = timeout;
|
|
|
status->kind = TARGET_WAITKIND_EXITED;
|
status->kind = TARGET_WAITKIND_EXITED;
|
status->value.integer = 0;
|
status->value.integer = 0;
|
|
|
if (need_artificial_trap != 0)
|
if (need_artificial_trap != 0)
|
{
|
{
|
status->kind = TARGET_WAITKIND_STOPPED;
|
status->kind = TARGET_WAITKIND_STOPPED;
|
status->value.sig = TARGET_SIGNAL_TRAP;
|
status->value.sig = TARGET_SIGNAL_TRAP;
|
need_artificial_trap--;
|
need_artificial_trap--;
|
return 0;
|
return 0;
|
}
|
}
|
|
|
timeout = 0; /* Don't time out -- user program is running. */
|
timeout = 0; /* Don't time out -- user program is running. */
|
while (1)
|
while (1)
|
{
|
{
|
ch_handled = 0;
|
ch_handled = 0;
|
ch = readchar ();
|
ch = readchar ();
|
if (ch == *bp)
|
if (ch == *bp)
|
{
|
{
|
bp++;
|
bp++;
|
if (*bp == '\0')
|
if (*bp == '\0')
|
break;
|
break;
|
ch_handled = 1;
|
ch_handled = 1;
|
|
|
*swallowed_p++ = ch;
|
*swallowed_p++ = ch;
|
}
|
}
|
else
|
else
|
bp = bpt;
|
bp = bpt;
|
|
|
if (ch == *ep || *ep == '?')
|
if (ch == *ep || *ep == '?')
|
{
|
{
|
ep++;
|
ep++;
|
if (*ep == '\0')
|
if (*ep == '\0')
|
break;
|
break;
|
|
|
if (!ch_handled)
|
if (!ch_handled)
|
*swallowed_p++ = ch;
|
*swallowed_p++ = ch;
|
ch_handled = 1;
|
ch_handled = 1;
|
}
|
}
|
else
|
else
|
ep = exitmsg;
|
ep = exitmsg;
|
|
|
if (!ch_handled)
|
if (!ch_handled)
|
{
|
{
|
char *p;
|
char *p;
|
|
|
/* Print out any characters which have been swallowed. */
|
/* Print out any characters which have been swallowed. */
|
for (p = swallowed; p < swallowed_p; ++p)
|
for (p = swallowed; p < swallowed_p; ++p)
|
putc (*p, stdout);
|
putc (*p, stdout);
|
swallowed_p = swallowed;
|
swallowed_p = swallowed;
|
|
|
putc (ch, stdout);
|
putc (ch, stdout);
|
}
|
}
|
}
|
}
|
expect_prompt ();
|
expect_prompt ();
|
if (*bp == '\0')
|
if (*bp == '\0')
|
{
|
{
|
status->kind = TARGET_WAITKIND_STOPPED;
|
status->kind = TARGET_WAITKIND_STOPPED;
|
status->value.sig = TARGET_SIGNAL_TRAP;
|
status->value.sig = TARGET_SIGNAL_TRAP;
|
}
|
}
|
else
|
else
|
{
|
{
|
status->kind = TARGET_WAITKIND_EXITED;
|
status->kind = TARGET_WAITKIND_EXITED;
|
status->value.integer = 0;
|
status->value.integer = 0;
|
}
|
}
|
timeout = old_timeout;
|
timeout = old_timeout;
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Return the name of register number REGNO
|
/* Return the name of register number REGNO
|
in the form input and output by EBMON.
|
in the form input and output by EBMON.
|
|
|
Returns a pointer to a static buffer containing the answer. */
|
Returns a pointer to a static buffer containing the answer. */
|
static char *
|
static char *
|
get_reg_name (regno)
|
get_reg_name (regno)
|
int regno;
|
int regno;
|
{
|
{
|
static char buf[80];
|
static char buf[80];
|
if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32)
|
if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32)
|
sprintf (buf, "GR%03d", regno - GR96_REGNUM + 96);
|
sprintf (buf, "GR%03d", regno - GR96_REGNUM + 96);
|
else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128)
|
else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128)
|
sprintf (buf, "LR%03d", regno - LR0_REGNUM);
|
sprintf (buf, "LR%03d", regno - LR0_REGNUM);
|
else if (regno == Q_REGNUM)
|
else if (regno == Q_REGNUM)
|
strcpy (buf, "SR131");
|
strcpy (buf, "SR131");
|
else if (regno >= BP_REGNUM && regno <= CR_REGNUM)
|
else if (regno >= BP_REGNUM && regno <= CR_REGNUM)
|
sprintf (buf, "SR%03d", regno - BP_REGNUM + 133);
|
sprintf (buf, "SR%03d", regno - BP_REGNUM + 133);
|
else if (regno == ALU_REGNUM)
|
else if (regno == ALU_REGNUM)
|
strcpy (buf, "SR132");
|
strcpy (buf, "SR132");
|
else if (regno >= IPC_REGNUM && regno <= IPB_REGNUM)
|
else if (regno >= IPC_REGNUM && regno <= IPB_REGNUM)
|
sprintf (buf, "SR%03d", regno - IPC_REGNUM + 128);
|
sprintf (buf, "SR%03d", regno - IPC_REGNUM + 128);
|
else if (regno >= VAB_REGNUM && regno <= LRU_REGNUM)
|
else if (regno >= VAB_REGNUM && regno <= LRU_REGNUM)
|
sprintf (buf, "SR%03d", regno - VAB_REGNUM);
|
sprintf (buf, "SR%03d", regno - VAB_REGNUM);
|
else if (regno == GR1_REGNUM)
|
else if (regno == GR1_REGNUM)
|
strcpy (buf, "GR001");
|
strcpy (buf, "GR001");
|
return buf;
|
return buf;
|
}
|
}
|
|
|
/* Read the remote registers into the block REGS. */
|
/* Read the remote registers into the block REGS. */
|
|
|
static void
|
static void
|
eb_fetch_registers ()
|
eb_fetch_registers ()
|
{
|
{
|
int reg_index;
|
int reg_index;
|
int regnum_index;
|
int regnum_index;
|
char tempbuf[10];
|
char tempbuf[10];
|
int i;
|
int i;
|
|
|
#if 0
|
#if 0
|
/* This should not be necessary, because one is supposed to read the
|
/* This should not be necessary, because one is supposed to read the
|
registers only when the inferior is stopped (at least with
|
registers only when the inferior is stopped (at least with
|
ptrace() and why not make it the same for remote?). */
|
ptrace() and why not make it the same for remote?). */
|
/* ^A is the "normal character" used to make sure we are talking to EBMON
|
/* ^A is the "normal character" used to make sure we are talking to EBMON
|
and not to the program being debugged. */
|
and not to the program being debugged. */
|
write (eb_desc, "\001\n");
|
write (eb_desc, "\001\n");
|
expect_prompt ();
|
expect_prompt ();
|
#endif
|
#endif
|
|
|
write (eb_desc, "dw gr96,gr127\n", 14);
|
write (eb_desc, "dw gr96,gr127\n", 14);
|
for (reg_index = 96, regnum_index = GR96_REGNUM;
|
for (reg_index = 96, regnum_index = GR96_REGNUM;
|
reg_index < 128;
|
reg_index < 128;
|
reg_index += 4, regnum_index += 4)
|
reg_index += 4, regnum_index += 4)
|
{
|
{
|
sprintf (tempbuf, "GR%03d ", reg_index);
|
sprintf (tempbuf, "GR%03d ", reg_index);
|
expect (tempbuf);
|
expect (tempbuf);
|
get_hex_regs (4, regnum_index);
|
get_hex_regs (4, regnum_index);
|
expect ("\n");
|
expect ("\n");
|
}
|
}
|
|
|
for (i = 0; i < 128; i += 32)
|
for (i = 0; i < 128; i += 32)
|
{
|
{
|
/* The PC has a tendency to hang if we get these
|
/* The PC has a tendency to hang if we get these
|
all in one fell swoop ("dw lr0,lr127"). */
|
all in one fell swoop ("dw lr0,lr127"). */
|
sprintf (tempbuf, "dw lr%d\n", i);
|
sprintf (tempbuf, "dw lr%d\n", i);
|
write (eb_desc, tempbuf, strlen (tempbuf));
|
write (eb_desc, tempbuf, strlen (tempbuf));
|
for (reg_index = i, regnum_index = LR0_REGNUM + i;
|
for (reg_index = i, regnum_index = LR0_REGNUM + i;
|
reg_index < i + 32;
|
reg_index < i + 32;
|
reg_index += 4, regnum_index += 4)
|
reg_index += 4, regnum_index += 4)
|
{
|
{
|
sprintf (tempbuf, "LR%03d ", reg_index);
|
sprintf (tempbuf, "LR%03d ", reg_index);
|
expect (tempbuf);
|
expect (tempbuf);
|
get_hex_regs (4, regnum_index);
|
get_hex_regs (4, regnum_index);
|
expect ("\n");
|
expect ("\n");
|
}
|
}
|
}
|
}
|
|
|
write (eb_desc, "dw sr133,sr133\n", 15);
|
write (eb_desc, "dw sr133,sr133\n", 15);
|
expect ("SR133 ");
|
expect ("SR133 ");
|
get_hex_regs (1, BP_REGNUM);
|
get_hex_regs (1, BP_REGNUM);
|
expect ("\n");
|
expect ("\n");
|
|
|
write (eb_desc, "dw sr134,sr134\n", 15);
|
write (eb_desc, "dw sr134,sr134\n", 15);
|
expect ("SR134 ");
|
expect ("SR134 ");
|
get_hex_regs (1, FC_REGNUM);
|
get_hex_regs (1, FC_REGNUM);
|
expect ("\n");
|
expect ("\n");
|
|
|
write (eb_desc, "dw sr135,sr135\n", 15);
|
write (eb_desc, "dw sr135,sr135\n", 15);
|
expect ("SR135 ");
|
expect ("SR135 ");
|
get_hex_regs (1, CR_REGNUM);
|
get_hex_regs (1, CR_REGNUM);
|
expect ("\n");
|
expect ("\n");
|
|
|
write (eb_desc, "dw sr131,sr131\n", 15);
|
write (eb_desc, "dw sr131,sr131\n", 15);
|
expect ("SR131 ");
|
expect ("SR131 ");
|
get_hex_regs (1, Q_REGNUM);
|
get_hex_regs (1, Q_REGNUM);
|
expect ("\n");
|
expect ("\n");
|
|
|
write (eb_desc, "dw sr0,sr14\n", 12);
|
write (eb_desc, "dw sr0,sr14\n", 12);
|
for (reg_index = 0, regnum_index = VAB_REGNUM;
|
for (reg_index = 0, regnum_index = VAB_REGNUM;
|
regnum_index <= LRU_REGNUM;
|
regnum_index <= LRU_REGNUM;
|
regnum_index += 4, reg_index += 4)
|
regnum_index += 4, reg_index += 4)
|
{
|
{
|
sprintf (tempbuf, "SR%03d ", reg_index);
|
sprintf (tempbuf, "SR%03d ", reg_index);
|
expect (tempbuf);
|
expect (tempbuf);
|
get_hex_regs (reg_index == 12 ? 3 : 4, regnum_index);
|
get_hex_regs (reg_index == 12 ? 3 : 4, regnum_index);
|
expect ("\n");
|
expect ("\n");
|
}
|
}
|
|
|
/* There doesn't seem to be any way to get these. */
|
/* There doesn't seem to be any way to get these. */
|
{
|
{
|
int val = -1;
|
int val = -1;
|
supply_register (FPE_REGNUM, (char *) &val);
|
supply_register (FPE_REGNUM, (char *) &val);
|
supply_register (INTE_REGNUM, (char *) &val);
|
supply_register (INTE_REGNUM, (char *) &val);
|
supply_register (FPS_REGNUM, (char *) &val);
|
supply_register (FPS_REGNUM, (char *) &val);
|
supply_register (EXO_REGNUM, (char *) &val);
|
supply_register (EXO_REGNUM, (char *) &val);
|
}
|
}
|
|
|
write (eb_desc, "dw gr1,gr1\n", 11);
|
write (eb_desc, "dw gr1,gr1\n", 11);
|
expect ("GR001 ");
|
expect ("GR001 ");
|
get_hex_regs (1, GR1_REGNUM);
|
get_hex_regs (1, GR1_REGNUM);
|
expect_prompt ();
|
expect_prompt ();
|
}
|
}
|
|
|
/* 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. */
|
void
|
void
|
eb_fetch_register (regno)
|
eb_fetch_register (regno)
|
int regno;
|
int regno;
|
{
|
{
|
if (regno == -1)
|
if (regno == -1)
|
eb_fetch_registers ();
|
eb_fetch_registers ();
|
else
|
else
|
{
|
{
|
char *name = get_reg_name (regno);
|
char *name = get_reg_name (regno);
|
fprintf (eb_stream, "dw %s,%s\n", name, name);
|
fprintf (eb_stream, "dw %s,%s\n", name, name);
|
expect (name);
|
expect (name);
|
expect (" ");
|
expect (" ");
|
get_hex_regs (1, regno);
|
get_hex_regs (1, regno);
|
expect_prompt ();
|
expect_prompt ();
|
}
|
}
|
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
|
eb_store_registers ()
|
eb_store_registers ()
|
{
|
{
|
int i, j;
|
int i, j;
|
fprintf (eb_stream, "s gr1,%x\n", read_register (GR1_REGNUM));
|
fprintf (eb_stream, "s gr1,%x\n", read_register (GR1_REGNUM));
|
expect_prompt ();
|
expect_prompt ();
|
|
|
for (j = 0; j < 32; j += 16)
|
for (j = 0; j < 32; j += 16)
|
{
|
{
|
fprintf (eb_stream, "s gr%d,", j + 96);
|
fprintf (eb_stream, "s gr%d,", j + 96);
|
for (i = 0; i < 15; ++i)
|
for (i = 0; i < 15; ++i)
|
fprintf (eb_stream, "%x,", read_register (GR96_REGNUM + j + i));
|
fprintf (eb_stream, "%x,", read_register (GR96_REGNUM + j + i));
|
fprintf (eb_stream, "%x\n", read_register (GR96_REGNUM + j + 15));
|
fprintf (eb_stream, "%x\n", read_register (GR96_REGNUM + j + 15));
|
expect_prompt ();
|
expect_prompt ();
|
}
|
}
|
|
|
for (j = 0; j < 128; j += 16)
|
for (j = 0; j < 128; j += 16)
|
{
|
{
|
fprintf (eb_stream, "s lr%d,", j);
|
fprintf (eb_stream, "s lr%d,", j);
|
for (i = 0; i < 15; ++i)
|
for (i = 0; i < 15; ++i)
|
fprintf (eb_stream, "%x,", read_register (LR0_REGNUM + j + i));
|
fprintf (eb_stream, "%x,", read_register (LR0_REGNUM + j + i));
|
fprintf (eb_stream, "%x\n", read_register (LR0_REGNUM + j + 15));
|
fprintf (eb_stream, "%x\n", read_register (LR0_REGNUM + j + 15));
|
expect_prompt ();
|
expect_prompt ();
|
}
|
}
|
|
|
fprintf (eb_stream, "s sr133,%x,%x,%x\n", read_register (BP_REGNUM),
|
fprintf (eb_stream, "s sr133,%x,%x,%x\n", read_register (BP_REGNUM),
|
read_register (FC_REGNUM), read_register (CR_REGNUM));
|
read_register (FC_REGNUM), read_register (CR_REGNUM));
|
expect_prompt ();
|
expect_prompt ();
|
fprintf (eb_stream, "s sr131,%x\n", read_register (Q_REGNUM));
|
fprintf (eb_stream, "s sr131,%x\n", read_register (Q_REGNUM));
|
expect_prompt ();
|
expect_prompt ();
|
fprintf (eb_stream, "s sr0,");
|
fprintf (eb_stream, "s sr0,");
|
for (i = 0; i < 11; ++i)
|
for (i = 0; i < 11; ++i)
|
fprintf (eb_stream, "%x,", read_register (VAB_REGNUM + i));
|
fprintf (eb_stream, "%x,", read_register (VAB_REGNUM + i));
|
fprintf (eb_stream, "%x\n", read_register (VAB_REGNUM + 11));
|
fprintf (eb_stream, "%x\n", read_register (VAB_REGNUM + 11));
|
expect_prompt ();
|
expect_prompt ();
|
}
|
}
|
|
|
/* Store register REGNO, or all if REGNO == 0.
|
/* Store register REGNO, or all if REGNO == 0.
|
Return errno value. */
|
Return errno value. */
|
void
|
void
|
eb_store_register (regno)
|
eb_store_register (regno)
|
int regno;
|
int regno;
|
{
|
{
|
if (regno == -1)
|
if (regno == -1)
|
eb_store_registers ();
|
eb_store_registers ();
|
else
|
else
|
{
|
{
|
char *name = get_reg_name (regno);
|
char *name = get_reg_name (regno);
|
fprintf (eb_stream, "s %s,%x\n", name, read_register (regno));
|
fprintf (eb_stream, "s %s,%x\n", name, read_register (regno));
|
/* Setting GR1 changes the numbers of all the locals, so
|
/* Setting GR1 changes the numbers of all the locals, so
|
invalidate the register cache. Do this *after* calling
|
invalidate the register cache. Do this *after* calling
|
read_register, because we want read_register to return the
|
read_register, because we want read_register to return the
|
value that write_register has just stuffed into the registers
|
value that write_register has just stuffed into the registers
|
array, not the value of the register fetched from the
|
array, not the value of the register fetched from the
|
inferior. */
|
inferior. */
|
if (regno == GR1_REGNUM)
|
if (regno == GR1_REGNUM)
|
registers_changed ();
|
registers_changed ();
|
expect_prompt ();
|
expect_prompt ();
|
}
|
}
|
}
|
}
|
|
|
/* 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. */
|
|
|
void
|
void
|
eb_prepare_to_store ()
|
eb_prepare_to_store ()
|
{
|
{
|
/* Do nothing, since we can store individual regs */
|
/* Do nothing, since we can store individual regs */
|
}
|
}
|
|
|
|
|
/* FIXME-someday! Merge these two. */
|
/* FIXME-someday! Merge these two. */
|
int
|
int
|
eb_xfer_inferior_memory (memaddr, myaddr, len, write, target)
|
eb_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 eb_write_inferior_memory (memaddr, myaddr, len);
|
return eb_write_inferior_memory (memaddr, myaddr, len);
|
else
|
else
|
return eb_read_inferior_memory (memaddr, myaddr, len);
|
return eb_read_inferior_memory (memaddr, myaddr, len);
|
}
|
}
|
|
|
void
|
void
|
eb_files_info ()
|
eb_files_info ()
|
{
|
{
|
printf ("\tAttached to %s at %d baud and running program %s.\n",
|
printf ("\tAttached to %s at %d baud and running program %s.\n",
|
dev_name, baudrate, prog_name);
|
dev_name, baudrate, prog_name);
|
}
|
}
|
|
|
/* 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. */
|
int
|
int
|
eb_write_inferior_memory (memaddr, myaddr, len)
|
eb_write_inferior_memory (memaddr, myaddr, len)
|
CORE_ADDR memaddr;
|
CORE_ADDR memaddr;
|
char *myaddr;
|
char *myaddr;
|
int len;
|
int len;
|
{
|
{
|
int i;
|
int i;
|
|
|
for (i = 0; i < len; i++)
|
for (i = 0; i < len; i++)
|
{
|
{
|
if ((i % 16) == 0)
|
if ((i % 16) == 0)
|
fprintf (eb_stream, "sb %x,", memaddr + i);
|
fprintf (eb_stream, "sb %x,", memaddr + i);
|
if ((i % 16) == 15 || i == len - 1)
|
if ((i % 16) == 15 || i == len - 1)
|
{
|
{
|
fprintf (eb_stream, "%x\n", ((unsigned char *) myaddr)[i]);
|
fprintf (eb_stream, "%x\n", ((unsigned char *) myaddr)[i]);
|
expect_prompt ();
|
expect_prompt ();
|
}
|
}
|
else
|
else
|
fprintf (eb_stream, "%x,", ((unsigned char *) myaddr)[i]);
|
fprintf (eb_stream, "%x,", ((unsigned char *) myaddr)[i]);
|
}
|
}
|
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. */
|
int
|
int
|
eb_read_inferior_memory (memaddr, myaddr, len)
|
eb_read_inferior_memory (memaddr, myaddr, len)
|
CORE_ADDR memaddr;
|
CORE_ADDR memaddr;
|
char *myaddr;
|
char *myaddr;
|
int len;
|
int len;
|
{
|
{
|
int i;
|
int i;
|
|
|
/* 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;
|
|
|
/* 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
|
eb_read_bytes (CORE_ADDR_MAX - 4, foo, 4)
|
eb_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
|
eb_read_bytes (CORE_ADDR_MAX - 3, foo, 4)
|
eb_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;
|
}
|
}
|
|
|
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);
|
|
|
fprintf (eb_stream, "db %x,%x\n", startaddr,
|
fprintf (eb_stream, "db %x,%x\n", startaddr,
|
(startaddr - 1) + len_this_pass);
|
(startaddr - 1) + len_this_pass);
|
expect ("\n");
|
expect ("\n");
|
|
|
/* Look for 8 hex digits. */
|
/* Look for 8 hex digits. */
|
i = 0;
|
i = 0;
|
while (1)
|
while (1)
|
{
|
{
|
if (isxdigit (readchar ()))
|
if (isxdigit (readchar ()))
|
++i;
|
++i;
|
else
|
else
|
{
|
{
|
expect_prompt ();
|
expect_prompt ();
|
error ("Hex digit expected from remote system.");
|
error ("Hex digit expected from remote system.");
|
}
|
}
|
if (i >= 8)
|
if (i >= 8)
|
break;
|
break;
|
}
|
}
|
|
|
expect (" ");
|
expect (" ");
|
|
|
for (i = 0; i < len_this_pass; i++)
|
for (i = 0; i < len_this_pass; i++)
|
get_hex_byte (&myaddr[count++]);
|
get_hex_byte (&myaddr[count++]);
|
|
|
expect_prompt ();
|
expect_prompt ();
|
|
|
startaddr += len_this_pass;
|
startaddr += len_this_pass;
|
}
|
}
|
return len;
|
return len;
|
}
|
}
|
|
|
static void
|
static void
|
eb_kill (args, from_tty)
|
eb_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. */
|
|
|
void
|
void
|
eb_mourn_inferior ()
|
eb_mourn_inferior ()
|
{
|
{
|
remove_breakpoints ();
|
remove_breakpoints ();
|
unpush_target (&eb_ops);
|
unpush_target (&eb_ops);
|
generic_mourn_inferior (); /* Do all the proper things now */
|
generic_mourn_inferior (); /* Do all the proper things now */
|
}
|
}
|
/* Define the target subroutine names */
|
/* Define the target subroutine names */
|
|
|
struct target_ops eb_ops;
|
struct target_ops eb_ops;
|
|
|
static void
|
static void
|
init_eb_ops (void)
|
init_eb_ops (void)
|
{
|
{
|
eb_ops.to_shortname = "amd-eb";
|
eb_ops.to_shortname = "amd-eb";
|
eb_ops.to_longname = "Remote serial AMD EBMON target";
|
eb_ops.to_longname = "Remote serial AMD EBMON target";
|
eb_ops.to_doc = "Use a remote computer running EBMON connected by a serial line.\n\
|
eb_ops.to_doc = "Use a remote computer running EBMON connected by a serial line.\n\
|
Arguments are the name of the device for the serial line,\n\
|
Arguments are the name of the device for the serial line,\n\
|
the speed to connect at in bits per second, and the filename of the\n\
|
the speed to connect at in bits per second, and the filename of the\n\
|
executable as it exists on the remote computer. For example,\n\
|
executable as it exists on the remote computer. For example,\n\
|
target amd-eb /dev/ttya 9600 demo",
|
target amd-eb /dev/ttya 9600 demo",
|
eb_ops.to_open = eb_open;
|
eb_ops.to_open = eb_open;
|
eb_ops.to_close = eb_close;
|
eb_ops.to_close = eb_close;
|
eb_ops.to_attach = 0;
|
eb_ops.to_attach = 0;
|
eb_ops.to_post_attach = NULL;
|
eb_ops.to_post_attach = NULL;
|
eb_ops.to_require_attach = NULL;
|
eb_ops.to_require_attach = NULL;
|
eb_ops.to_detach = eb_detach;
|
eb_ops.to_detach = eb_detach;
|
eb_ops.to_require_detach = NULL;
|
eb_ops.to_require_detach = NULL;
|
eb_ops.to_resume = eb_resume;
|
eb_ops.to_resume = eb_resume;
|
eb_ops.to_wait = eb_wait;
|
eb_ops.to_wait = eb_wait;
|
eb_ops.to_post_wait = NULL;
|
eb_ops.to_post_wait = NULL;
|
eb_ops.to_fetch_registers = eb_fetch_register;
|
eb_ops.to_fetch_registers = eb_fetch_register;
|
eb_ops.to_store_registers = eb_store_register;
|
eb_ops.to_store_registers = eb_store_register;
|
eb_ops.to_prepare_to_store = eb_prepare_to_store;
|
eb_ops.to_prepare_to_store = eb_prepare_to_store;
|
eb_ops.to_xfer_memory = eb_xfer_inferior_memory;
|
eb_ops.to_xfer_memory = eb_xfer_inferior_memory;
|
eb_ops.to_files_info = eb_files_info;
|
eb_ops.to_files_info = eb_files_info;
|
eb_ops.to_insert_breakpoint = 0;
|
eb_ops.to_insert_breakpoint = 0;
|
eb_ops.to_remove_breakpoint = 0; /* Breakpoints */
|
eb_ops.to_remove_breakpoint = 0; /* Breakpoints */
|
eb_ops.to_terminal_init = 0;
|
eb_ops.to_terminal_init = 0;
|
eb_ops.to_terminal_inferior = 0;
|
eb_ops.to_terminal_inferior = 0;
|
eb_ops.to_terminal_ours_for_output = 0;
|
eb_ops.to_terminal_ours_for_output = 0;
|
eb_ops.to_terminal_ours = 0;
|
eb_ops.to_terminal_ours = 0;
|
eb_ops.to_terminal_info = 0; /* Terminal handling */
|
eb_ops.to_terminal_info = 0; /* Terminal handling */
|
eb_ops.to_kill = eb_kill;
|
eb_ops.to_kill = eb_kill;
|
eb_ops.to_load = generic_load; /* load */
|
eb_ops.to_load = generic_load; /* load */
|
eb_ops.to_lookup_symbol = 0; /* lookup_symbol */
|
eb_ops.to_lookup_symbol = 0; /* lookup_symbol */
|
eb_ops.to_create_inferior = eb_create_inferior;
|
eb_ops.to_create_inferior = eb_create_inferior;
|
eb_ops.to_post_startup_inferior = NULL;
|
eb_ops.to_post_startup_inferior = NULL;
|
eb_ops.to_acknowledge_created_inferior = NULL;
|
eb_ops.to_acknowledge_created_inferior = NULL;
|
eb_ops.to_clone_and_follow_inferior = NULL;
|
eb_ops.to_clone_and_follow_inferior = NULL;
|
eb_ops.to_post_follow_inferior_by_clone = NULL;
|
eb_ops.to_post_follow_inferior_by_clone = NULL;
|
eb_ops.to_insert_fork_catchpoint = NULL;
|
eb_ops.to_insert_fork_catchpoint = NULL;
|
eb_ops.to_remove_fork_catchpoint = NULL;
|
eb_ops.to_remove_fork_catchpoint = NULL;
|
eb_ops.to_insert_vfork_catchpoint = NULL;
|
eb_ops.to_insert_vfork_catchpoint = NULL;
|
eb_ops.to_remove_vfork_catchpoint = NULL;
|
eb_ops.to_remove_vfork_catchpoint = NULL;
|
eb_ops.to_has_forked = NULL;
|
eb_ops.to_has_forked = NULL;
|
eb_ops.to_has_vforked = NULL;
|
eb_ops.to_has_vforked = NULL;
|
eb_ops.to_can_follow_vfork_prior_to_exec = NULL;
|
eb_ops.to_can_follow_vfork_prior_to_exec = NULL;
|
eb_ops.to_post_follow_vfork = NULL;
|
eb_ops.to_post_follow_vfork = NULL;
|
eb_ops.to_insert_exec_catchpoint = NULL;
|
eb_ops.to_insert_exec_catchpoint = NULL;
|
eb_ops.to_remove_exec_catchpoint = NULL;
|
eb_ops.to_remove_exec_catchpoint = NULL;
|
eb_ops.to_has_execd = NULL;
|
eb_ops.to_has_execd = NULL;
|
eb_ops.to_reported_exec_events_per_exec_call = NULL;
|
eb_ops.to_reported_exec_events_per_exec_call = NULL;
|
eb_ops.to_has_exited = NULL;
|
eb_ops.to_has_exited = NULL;
|
eb_ops.to_mourn_inferior = eb_mourn_inferior;
|
eb_ops.to_mourn_inferior = eb_mourn_inferior;
|
eb_ops.to_can_run = 0; /* can_run */
|
eb_ops.to_can_run = 0; /* can_run */
|
eb_ops.to_notice_signals = 0; /* notice_signals */
|
eb_ops.to_notice_signals = 0; /* notice_signals */
|
eb_ops.to_thread_alive = 0; /* thread-alive */
|
eb_ops.to_thread_alive = 0; /* thread-alive */
|
eb_ops.to_stop = 0; /* to_stop */
|
eb_ops.to_stop = 0; /* to_stop */
|
eb_ops.to_pid_to_exec_file = NULL;
|
eb_ops.to_pid_to_exec_file = NULL;
|
eb_ops.to_core_file_to_sym_file = NULL;
|
eb_ops.to_core_file_to_sym_file = NULL;
|
eb_ops.to_stratum = process_stratum;
|
eb_ops.to_stratum = process_stratum;
|
eb_ops.DONT_USE = 0; /* next */
|
eb_ops.DONT_USE = 0; /* next */
|
eb_ops.to_has_all_memory = 1;
|
eb_ops.to_has_all_memory = 1;
|
eb_ops.to_has_memory = 1;
|
eb_ops.to_has_memory = 1;
|
eb_ops.to_has_stack = 1;
|
eb_ops.to_has_stack = 1;
|
eb_ops.to_has_registers = 1;
|
eb_ops.to_has_registers = 1;
|
eb_ops.to_has_execution = 1; /* all mem, mem, stack, regs, exec */
|
eb_ops.to_has_execution = 1; /* all mem, mem, stack, regs, exec */
|
eb_ops.to_sections = 0; /* sections */
|
eb_ops.to_sections = 0; /* sections */
|
eb_ops.to_sections_end = 0; /* sections end */
|
eb_ops.to_sections_end = 0; /* sections end */
|
eb_ops.to_magic = OPS_MAGIC; /* Always the last thing */
|
eb_ops.to_magic = OPS_MAGIC; /* Always the last thing */
|
};
|
};
|
|
|
void
|
void
|
_initialize_remote_eb ()
|
_initialize_remote_eb ()
|
{
|
{
|
init_eb_ops ();
|
init_eb_ops ();
|
add_target (&eb_ops);
|
add_target (&eb_ops);
|
}
|
}
|
|
|
