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1028 lines
25 KiB
C
1028 lines
25 KiB
C
/* Remote debugging interface for Motorola's MVME187BUG monitor, an embedded
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monitor for the m88k.
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Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
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2002 Free Software Foundation, Inc.
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Contributed by Cygnus Support. Written by K. Richard Pixley.
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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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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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(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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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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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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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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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "inferior.h"
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#include "gdb_string.h"
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#include "regcache.h"
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#include <ctype.h>
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#include <fcntl.h>
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#include <setjmp.h>
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#include <errno.h>
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#include "terminal.h"
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#include "gdbcore.h"
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#include "gdbcmd.h"
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#include "serial.h"
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#include "remote-utils.h"
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/* External data declarations */
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extern int stop_soon_quietly; /* for wait_for_inferior */
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/* Forward data declarations */
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extern struct target_ops bug_ops; /* Forward declaration */
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/* Forward function declarations */
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static int bug_clear_breakpoints (void);
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static int bug_read_memory (CORE_ADDR memaddr,
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unsigned char *myaddr, int len);
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static int bug_write_memory (CORE_ADDR memaddr,
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unsigned char *myaddr, int len);
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/* This variable is somewhat arbitrary. It's here so that it can be
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set from within a running gdb. */
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static int srec_max_retries = 3;
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/* Each S-record download to the target consists of an S0 header
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record, some number of S3 data records, and one S7 termination
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record. I call this download a "frame". Srec_frame says how many
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bytes will be represented in each frame. */
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#define SREC_SIZE 160
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static int srec_frame = SREC_SIZE;
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/* This variable determines how many bytes will be represented in each
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S3 s-record. */
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static int srec_bytes = 40;
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/* At one point it appeared to me as though the bug monitor could not
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really be expected to receive two sequential characters at 9600
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baud reliably. Echo-pacing is an attempt to force data across the
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line even in this condition. Specifically, in echo-pace mode, each
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character is sent one at a time and we look for the echo before
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sending the next. This is excruciatingly slow. */
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static int srec_echo_pace = 0;
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/* How long to wait after an srec for a possible error message.
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Similar to the above, I tried sleeping after sending each S3 record
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in hopes that I might actually see error messages from the bug
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monitor. This might actually work if we were to use sleep
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intervals smaller than 1 second. */
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static int srec_sleep = 0;
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/* Every srec_noise records, flub the checksum. This is a debugging
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feature. Set the variable to something other than 1 in order to
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inject *deliberate* checksum errors. One might do this if one
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wanted to test error handling and recovery. */
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static int srec_noise = 0;
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/* Called when SIGALRM signal sent due to alarm() timeout. */
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/* Number of SIGTRAPs we need to simulate. That is, the next
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NEED_ARTIFICIAL_TRAP calls to bug_wait should just return
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SIGTRAP without actually waiting for anything. */
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static int need_artificial_trap = 0;
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/*
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* Download a file specified in 'args', to the bug.
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*/
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static void
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bug_load (char *args, int fromtty)
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{
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bfd *abfd;
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asection *s;
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char buffer[1024];
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sr_check_open ();
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inferior_ptid = null_ptid;
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abfd = bfd_openr (args, 0);
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if (!abfd)
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{
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printf_filtered ("Unable to open file %s\n", args);
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return;
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}
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if (bfd_check_format (abfd, bfd_object) == 0)
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{
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printf_filtered ("File is not an object file\n");
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return;
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}
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s = abfd->sections;
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while (s != (asection *) NULL)
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{
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srec_frame = SREC_SIZE;
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if (s->flags & SEC_LOAD)
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{
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int i;
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char *buffer = xmalloc (srec_frame);
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printf_filtered ("%s\t: 0x%4lx .. 0x%4lx ", s->name, s->vma, s->vma + s->_raw_size);
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gdb_flush (gdb_stdout);
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for (i = 0; i < s->_raw_size; i += srec_frame)
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{
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if (srec_frame > s->_raw_size - i)
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srec_frame = s->_raw_size - i;
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bfd_get_section_contents (abfd, s, buffer, i, srec_frame);
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bug_write_memory (s->vma + i, buffer, srec_frame);
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printf_filtered ("*");
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gdb_flush (gdb_stdout);
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}
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printf_filtered ("\n");
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xfree (buffer);
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}
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s = s->next;
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}
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sprintf (buffer, "rs ip %lx", (unsigned long) abfd->start_address);
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sr_write_cr (buffer);
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gr_expect_prompt ();
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}
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#if 0
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static char *
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get_word (char **p)
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{
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char *s = *p;
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char *word;
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char *copy;
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size_t len;
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while (isspace (*s))
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s++;
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word = s;
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len = 0;
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while (*s && !isspace (*s))
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{
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s++;
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len++;
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}
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copy = xmalloc (len + 1);
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memcpy (copy, word, len);
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copy[len] = 0;
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*p = s;
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return copy;
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}
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#endif
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static struct gr_settings bug_settings =
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{
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"Bug>", /* prompt */
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&bug_ops, /* ops */
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bug_clear_breakpoints, /* clear_all_breakpoints */
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gr_generic_checkin, /* checkin */
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};
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static char *cpu_check_strings[] =
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{
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"=",
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"Invalid Register",
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};
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static void
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bug_open (char *args, int from_tty)
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{
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if (args == NULL)
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args = "";
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gr_open (args, from_tty, &bug_settings);
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/* decide *now* whether we are on an 88100 or an 88110 */
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sr_write_cr ("rs cr06");
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sr_expect ("rs cr06");
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switch (gr_multi_scan (cpu_check_strings, 0))
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{
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case 0: /* this is an m88100 */
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target_is_m88110 = 0;
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break;
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case 1: /* this is an m88110 */
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target_is_m88110 = 1;
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break;
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default:
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internal_error (__FILE__, __LINE__, "failed internal consistency check");
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}
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}
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/* Tell the remote machine to resume. */
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void
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bug_resume (ptid_t ptid, int step, enum target_signal sig)
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{
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if (step)
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{
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sr_write_cr ("t");
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/* Force the next bug_wait to return a trap. Not doing anything
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about I/O from the target means that the user has to type
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"continue" to see any. FIXME, this should be fixed. */
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need_artificial_trap = 1;
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}
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else
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sr_write_cr ("g");
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return;
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}
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/* Wait until the remote machine stops, then return,
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storing status in STATUS just as `wait' would. */
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static char *wait_strings[] =
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{
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"At Breakpoint",
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"Exception: Data Access Fault (Local Bus Timeout)",
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"\r8??\?-Bug>", /* The '\?' avoids creating a trigraph */
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"\r197-Bug>",
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NULL,
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};
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ptid_t
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bug_wait (ptid_t ptid, struct target_waitstatus *status)
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{
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int old_timeout = sr_get_timeout ();
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int old_immediate_quit = immediate_quit;
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status->kind = TARGET_WAITKIND_EXITED;
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status->value.integer = 0;
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/* read off leftovers from resume so that the rest can be passed
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back out as stdout. */
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if (need_artificial_trap == 0)
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{
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sr_expect ("Effective address: ");
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(void) sr_get_hex_word ();
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sr_expect ("\r\n");
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}
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sr_set_timeout (-1); /* Don't time out -- user program is running. */
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immediate_quit = 1; /* Helps ability to QUIT */
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switch (gr_multi_scan (wait_strings, need_artificial_trap == 0))
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{
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case 0: /* breakpoint case */
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status->kind = TARGET_WAITKIND_STOPPED;
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status->value.sig = TARGET_SIGNAL_TRAP;
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/* user output from the target can be discarded here. (?) */
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gr_expect_prompt ();
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break;
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case 1: /* bus error */
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status->kind = TARGET_WAITKIND_STOPPED;
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status->value.sig = TARGET_SIGNAL_BUS;
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/* user output from the target can be discarded here. (?) */
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gr_expect_prompt ();
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break;
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case 2: /* normal case */
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case 3:
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if (need_artificial_trap != 0)
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{
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/* stepping */
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status->kind = TARGET_WAITKIND_STOPPED;
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status->value.sig = TARGET_SIGNAL_TRAP;
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need_artificial_trap--;
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break;
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}
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else
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{
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/* exit case */
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status->kind = TARGET_WAITKIND_EXITED;
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status->value.integer = 0;
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break;
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}
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case -1: /* trouble */
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default:
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fprintf_filtered (gdb_stderr,
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"Trouble reading target during wait\n");
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break;
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}
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sr_set_timeout (old_timeout);
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immediate_quit = old_immediate_quit;
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return inferior_ptid;
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}
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/* Return the name of register number REGNO
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in the form input and output by bug.
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Returns a pointer to a static buffer containing the answer. */
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static char *
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get_reg_name (int regno)
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{
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static char *rn[] =
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{
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"r00", "r01", "r02", "r03", "r04", "r05", "r06", "r07",
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"r08", "r09", "r10", "r11", "r12", "r13", "r14", "r15",
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"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
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"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
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/* these get confusing because we omit a few and switch some ordering around. */
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"cr01", /* 32 = psr */
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"fcr62", /* 33 = fpsr */
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"fcr63", /* 34 = fpcr */
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"ip", /* this is something of a cheat. */
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/* 35 = sxip */
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"cr05", /* 36 = snip */
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"cr06", /* 37 = sfip */
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"x00", "x01", "x02", "x03", "x04", "x05", "x06", "x07",
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"x08", "x09", "x10", "x11", "x12", "x13", "x14", "x15",
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"x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23",
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"x24", "x25", "x26", "x27", "x28", "x29", "x30", "x31",
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};
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return rn[regno];
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}
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#if 0 /* not currently used */
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/* Read from remote while the input matches STRING. Return zero on
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success, -1 on failure. */
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static int
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bug_scan (char *s)
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{
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int c;
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while (*s)
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{
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c = sr_readchar ();
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if (c != *s++)
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{
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fflush (stdout);
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printf ("\nNext character is '%c' - %d and s is \"%s\".\n", c, c, --s);
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return (-1);
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}
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}
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return (0);
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}
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#endif /* never */
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static int
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bug_srec_write_cr (char *s)
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{
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char *p = s;
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if (srec_echo_pace)
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for (p = s; *p; ++p)
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{
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if (sr_get_debug () > 0)
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printf ("%c", *p);
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do
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serial_write (sr_get_desc (), p, 1);
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while (sr_pollchar () != *p);
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}
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else
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{
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sr_write_cr (s);
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/* return(bug_scan (s) || bug_scan ("\n")); */
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}
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return (0);
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}
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/* Store register REGNO, or all if REGNO == -1. */
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static void
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bug_fetch_register (int regno)
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{
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sr_check_open ();
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if (regno == -1)
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{
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int i;
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for (i = 0; i < NUM_REGS; ++i)
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bug_fetch_register (i);
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}
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else if (target_is_m88110 && regno == SFIP_REGNUM)
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{
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/* m88110 has no sfip. */
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long l = 0;
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supply_register (regno, (char *) &l);
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}
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else if (regno < XFP_REGNUM)
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{
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char buffer[MAX_REGISTER_RAW_SIZE];
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sr_write ("rs ", 3);
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sr_write_cr (get_reg_name (regno));
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sr_expect ("=");
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store_unsigned_integer (buffer, REGISTER_RAW_SIZE (regno),
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sr_get_hex_word ());
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gr_expect_prompt ();
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supply_register (regno, buffer);
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}
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else
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{
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/* Float register so we need to parse a strange data format. */
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long p;
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unsigned char fpreg_buf[10];
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sr_write ("rs ", 3);
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sr_write (get_reg_name (regno), strlen (get_reg_name (regno)));
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sr_write_cr (";d");
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sr_expect ("rs");
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sr_expect (get_reg_name (regno));
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sr_expect (";d");
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sr_expect ("=");
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/* sign */
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p = sr_get_hex_digit (1);
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fpreg_buf[0] = p << 7;
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/* exponent */
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sr_expect ("_");
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p = sr_get_hex_digit (1);
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fpreg_buf[0] += (p << 4);
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fpreg_buf[0] += sr_get_hex_digit (1);
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fpreg_buf[1] = sr_get_hex_digit (1) << 4;
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/* fraction */
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sr_expect ("_");
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fpreg_buf[1] += sr_get_hex_digit (1);
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fpreg_buf[2] = (sr_get_hex_digit (1) << 4) + sr_get_hex_digit (1);
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fpreg_buf[3] = (sr_get_hex_digit (1) << 4) + sr_get_hex_digit (1);
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fpreg_buf[4] = (sr_get_hex_digit (1) << 4) + sr_get_hex_digit (1);
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fpreg_buf[5] = (sr_get_hex_digit (1) << 4) + sr_get_hex_digit (1);
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fpreg_buf[6] = (sr_get_hex_digit (1) << 4) + sr_get_hex_digit (1);
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fpreg_buf[7] = (sr_get_hex_digit (1) << 4) + sr_get_hex_digit (1);
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fpreg_buf[8] = 0;
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fpreg_buf[9] = 0;
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gr_expect_prompt ();
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supply_register (regno, fpreg_buf);
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}
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return;
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}
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/* Store register REGNO, or all if REGNO == -1. */
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static void
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bug_store_register (int regno)
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{
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char buffer[1024];
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sr_check_open ();
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if (regno == -1)
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{
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int i;
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for (i = 0; i < NUM_REGS; ++i)
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bug_store_register (i);
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}
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else
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{
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char *regname;
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regname = get_reg_name (regno);
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if (target_is_m88110 && regno == SFIP_REGNUM)
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return;
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else if (regno < XFP_REGNUM)
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sprintf (buffer, "rs %s %08lx",
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regname,
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(long) read_register (regno));
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else
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{
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unsigned char *fpreg_buf =
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(unsigned char *) ®isters[REGISTER_BYTE (regno)];
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sprintf (buffer, "rs %s %1x_%02x%1x_%1x%02x%02x%02x%02x%02x%02x;d",
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regname,
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/* sign */
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(fpreg_buf[0] >> 7) & 0xf,
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/* exponent */
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fpreg_buf[0] & 0x7f,
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(fpreg_buf[1] >> 8) & 0xf,
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/* fraction */
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fpreg_buf[1] & 0xf,
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fpreg_buf[2],
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fpreg_buf[3],
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fpreg_buf[4],
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fpreg_buf[5],
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fpreg_buf[6],
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fpreg_buf[7]);
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}
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sr_write_cr (buffer);
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gr_expect_prompt ();
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}
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return;
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}
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|
|
|
/* Transfer LEN bytes between GDB address MYADDR and target address
|
|
MEMADDR. If WRITE is non-zero, transfer them to the target,
|
|
otherwise transfer them from the target. TARGET is unused.
|
|
|
|
Returns the number of bytes transferred. */
|
|
|
|
int
|
|
bug_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
|
|
struct mem_attrib *attrib, struct target_ops *target)
|
|
{
|
|
int res;
|
|
|
|
if (len <= 0)
|
|
return 0;
|
|
|
|
if (write)
|
|
res = bug_write_memory (memaddr, myaddr, len);
|
|
else
|
|
res = bug_read_memory (memaddr, myaddr, len);
|
|
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
start_load (void)
|
|
{
|
|
char *command;
|
|
|
|
command = (srec_echo_pace ? "lo 0 ;x" : "lo 0");
|
|
|
|
sr_write_cr (command);
|
|
sr_expect (command);
|
|
sr_expect ("\r\n");
|
|
bug_srec_write_cr ("S0030000FC");
|
|
return;
|
|
}
|
|
|
|
/* This is an extremely vulnerable and fragile function. I've made
|
|
considerable attempts to make this deterministic, but I've
|
|
certainly forgotten something. The trouble is that S-records are
|
|
only a partial file format, not a protocol. Worse, apparently the
|
|
m88k bug monitor does not run in real time while receiving
|
|
S-records. Hence, we must pay excruciating attention to when and
|
|
where error messages are returned, and what has actually been sent.
|
|
|
|
Each call represents a chunk of memory to be sent to the target.
|
|
We break that chunk into an S0 header record, some number of S3
|
|
data records each containing srec_bytes, and an S7 termination
|
|
record. */
|
|
|
|
static char *srecord_strings[] =
|
|
{
|
|
"S-RECORD",
|
|
"-Bug>",
|
|
NULL,
|
|
};
|
|
|
|
static int
|
|
bug_write_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
|
|
{
|
|
int done;
|
|
int checksum;
|
|
int x;
|
|
int retries;
|
|
char *buffer = alloca ((srec_bytes + 8) << 1);
|
|
|
|
retries = 0;
|
|
|
|
do
|
|
{
|
|
done = 0;
|
|
|
|
if (retries > srec_max_retries)
|
|
return (-1);
|
|
|
|
if (retries > 0)
|
|
{
|
|
if (sr_get_debug () > 0)
|
|
printf ("\n<retrying...>\n");
|
|
|
|
/* This gr_expect_prompt call is extremely important. Without
|
|
it, we will tend to resend our packet so fast that it
|
|
will arrive before the bug monitor is ready to receive
|
|
it. This would lead to a very ugly resend loop. */
|
|
|
|
gr_expect_prompt ();
|
|
}
|
|
|
|
start_load ();
|
|
|
|
while (done < len)
|
|
{
|
|
int thisgo;
|
|
int idx;
|
|
char *buf = buffer;
|
|
CORE_ADDR address;
|
|
|
|
checksum = 0;
|
|
thisgo = len - done;
|
|
if (thisgo > srec_bytes)
|
|
thisgo = srec_bytes;
|
|
|
|
address = memaddr + done;
|
|
sprintf (buf, "S3%02X%08lX", thisgo + 4 + 1, (long) address);
|
|
buf += 12;
|
|
|
|
checksum += (thisgo + 4 + 1
|
|
+ (address & 0xff)
|
|
+ ((address >> 8) & 0xff)
|
|
+ ((address >> 16) & 0xff)
|
|
+ ((address >> 24) & 0xff));
|
|
|
|
for (idx = 0; idx < thisgo; idx++)
|
|
{
|
|
sprintf (buf, "%02X", myaddr[idx + done]);
|
|
checksum += myaddr[idx + done];
|
|
buf += 2;
|
|
}
|
|
|
|
if (srec_noise > 0)
|
|
{
|
|
/* FIXME-NOW: insert a deliberate error every now and then.
|
|
This is intended for testing/debugging the error handling
|
|
stuff. */
|
|
static int counter = 0;
|
|
if (++counter > srec_noise)
|
|
{
|
|
counter = 0;
|
|
++checksum;
|
|
}
|
|
}
|
|
|
|
sprintf (buf, "%02X", ~checksum & 0xff);
|
|
bug_srec_write_cr (buffer);
|
|
|
|
if (srec_sleep != 0)
|
|
sleep (srec_sleep);
|
|
|
|
/* This pollchar is probably redundant to the gr_multi_scan
|
|
below. Trouble is, we can't be sure when or where an
|
|
error message will appear. Apparently, when running at
|
|
full speed from a typical sun4, error messages tend to
|
|
appear to arrive only *after* the s7 record. */
|
|
|
|
if ((x = sr_pollchar ()) != 0)
|
|
{
|
|
if (sr_get_debug () > 0)
|
|
printf ("\n<retrying...>\n");
|
|
|
|
++retries;
|
|
|
|
/* flush any remaining input and verify that we are back
|
|
at the prompt level. */
|
|
gr_expect_prompt ();
|
|
/* start all over again. */
|
|
start_load ();
|
|
done = 0;
|
|
continue;
|
|
}
|
|
|
|
done += thisgo;
|
|
}
|
|
|
|
bug_srec_write_cr ("S7060000000000F9");
|
|
++retries;
|
|
|
|
/* Having finished the load, we need to figure out whether we
|
|
had any errors. */
|
|
}
|
|
while (gr_multi_scan (srecord_strings, 0) == 0);;
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* Copy LEN bytes of data from debugger memory at MYADDR
|
|
to inferior's memory at MEMADDR. Returns errno value.
|
|
* sb/sh instructions don't work on unaligned addresses, when TU=1.
|
|
*/
|
|
|
|
/* Read LEN bytes from inferior memory at MEMADDR. Put the result
|
|
at debugger address MYADDR. Returns errno value. */
|
|
static int
|
|
bug_read_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
|
|
{
|
|
char request[100];
|
|
char *buffer;
|
|
char *p;
|
|
char type;
|
|
char size;
|
|
unsigned char c;
|
|
unsigned int inaddr;
|
|
unsigned int checksum;
|
|
|
|
sprintf (request, "du 0 %lx:&%d", (long) memaddr, len);
|
|
sr_write_cr (request);
|
|
|
|
p = buffer = alloca (len);
|
|
|
|
/* scan up through the header */
|
|
sr_expect ("S0030000FC");
|
|
|
|
while (p < buffer + len)
|
|
{
|
|
/* scan off any white space. */
|
|
while (sr_readchar () != 'S');;
|
|
|
|
/* what kind of s-rec? */
|
|
type = sr_readchar ();
|
|
|
|
/* scan record size */
|
|
sr_get_hex_byte (&size);
|
|
checksum = size;
|
|
--size;
|
|
inaddr = 0;
|
|
|
|
switch (type)
|
|
{
|
|
case '7':
|
|
case '8':
|
|
case '9':
|
|
goto done;
|
|
|
|
case '3':
|
|
sr_get_hex_byte (&c);
|
|
inaddr = (inaddr << 8) + c;
|
|
checksum += c;
|
|
--size;
|
|
/* intentional fall through */
|
|
case '2':
|
|
sr_get_hex_byte (&c);
|
|
inaddr = (inaddr << 8) + c;
|
|
checksum += c;
|
|
--size;
|
|
/* intentional fall through */
|
|
case '1':
|
|
sr_get_hex_byte (&c);
|
|
inaddr = (inaddr << 8) + c;
|
|
checksum += c;
|
|
--size;
|
|
sr_get_hex_byte (&c);
|
|
inaddr = (inaddr << 8) + c;
|
|
checksum += c;
|
|
--size;
|
|
break;
|
|
|
|
default:
|
|
/* bonk */
|
|
error ("reading s-records.");
|
|
}
|
|
|
|
if (inaddr < memaddr
|
|
|| (memaddr + len) < (inaddr + size))
|
|
error ("srec out of memory range.");
|
|
|
|
if (p != buffer + inaddr - memaddr)
|
|
error ("srec out of sequence.");
|
|
|
|
for (; size; --size, ++p)
|
|
{
|
|
sr_get_hex_byte (p);
|
|
checksum += *p;
|
|
}
|
|
|
|
sr_get_hex_byte (&c);
|
|
if (c != (~checksum & 0xff))
|
|
error ("bad s-rec checksum");
|
|
}
|
|
|
|
done:
|
|
gr_expect_prompt ();
|
|
if (p != buffer + len)
|
|
return (1);
|
|
|
|
memcpy (myaddr, buffer, len);
|
|
return (0);
|
|
}
|
|
|
|
#define MAX_BREAKS 16
|
|
static int num_brkpts = 0;
|
|
|
|
/* Insert a breakpoint at ADDR. SAVE is normally the address of the
|
|
pattern buffer where the instruction that the breakpoint overwrites
|
|
is saved. It is unused here since the bug is responsible for
|
|
saving/restoring the original instruction. */
|
|
|
|
static int
|
|
bug_insert_breakpoint (CORE_ADDR addr, char *save)
|
|
{
|
|
sr_check_open ();
|
|
|
|
if (num_brkpts < MAX_BREAKS)
|
|
{
|
|
char buffer[100];
|
|
|
|
num_brkpts++;
|
|
sprintf (buffer, "br %lx", (long) addr);
|
|
sr_write_cr (buffer);
|
|
gr_expect_prompt ();
|
|
return (0);
|
|
}
|
|
else
|
|
{
|
|
fprintf_filtered (gdb_stderr,
|
|
"Too many break points, break point not installed\n");
|
|
return (1);
|
|
}
|
|
|
|
}
|
|
|
|
/* Remove a breakpoint at ADDR. SAVE is normally the previously
|
|
saved pattern, but is unused here since the bug is responsible
|
|
for saving/restoring instructions. */
|
|
|
|
static int
|
|
bug_remove_breakpoint (CORE_ADDR addr, char *save)
|
|
{
|
|
if (num_brkpts > 0)
|
|
{
|
|
char buffer[100];
|
|
|
|
num_brkpts--;
|
|
sprintf (buffer, "nobr %lx", (long) addr);
|
|
sr_write_cr (buffer);
|
|
gr_expect_prompt ();
|
|
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/* Clear the bugs notion of what the break points are */
|
|
static int
|
|
bug_clear_breakpoints (void)
|
|
{
|
|
|
|
if (sr_is_open ())
|
|
{
|
|
sr_write_cr ("nobr");
|
|
sr_expect ("nobr");
|
|
gr_expect_prompt ();
|
|
}
|
|
num_brkpts = 0;
|
|
return (0);
|
|
}
|
|
|
|
struct target_ops bug_ops;
|
|
|
|
static void
|
|
init_bug_ops (void)
|
|
{
|
|
bug_ops.to_shortname = "bug";
|
|
"Remote BUG monitor",
|
|
bug_ops.to_longname = "Use the mvme187 board running the BUG monitor connected by a serial line.";
|
|
bug_ops.to_doc = " ";
|
|
bug_ops.to_open = bug_open;
|
|
bug_ops.to_close = gr_close;
|
|
bug_ops.to_attach = 0;
|
|
bug_ops.to_post_attach = NULL;
|
|
bug_ops.to_require_attach = NULL;
|
|
bug_ops.to_detach = gr_detach;
|
|
bug_ops.to_require_detach = NULL;
|
|
bug_ops.to_resume = bug_resume;
|
|
bug_ops.to_wait = bug_wait;
|
|
bug_ops.to_post_wait = NULL;
|
|
bug_ops.to_fetch_registers = bug_fetch_register;
|
|
bug_ops.to_store_registers = bug_store_register;
|
|
bug_ops.to_prepare_to_store = gr_prepare_to_store;
|
|
bug_ops.to_xfer_memory = bug_xfer_memory;
|
|
bug_ops.to_files_info = gr_files_info;
|
|
bug_ops.to_insert_breakpoint = bug_insert_breakpoint;
|
|
bug_ops.to_remove_breakpoint = bug_remove_breakpoint;
|
|
bug_ops.to_terminal_init = 0;
|
|
bug_ops.to_terminal_inferior = 0;
|
|
bug_ops.to_terminal_ours_for_output = 0;
|
|
bug_ops.to_terminal_ours = 0;
|
|
bug_ops.to_terminal_info = 0;
|
|
bug_ops.to_kill = gr_kill;
|
|
bug_ops.to_load = bug_load;
|
|
bug_ops.to_lookup_symbol = 0;
|
|
bug_ops.to_create_inferior = gr_create_inferior;
|
|
bug_ops.to_post_startup_inferior = NULL;
|
|
bug_ops.to_acknowledge_created_inferior = NULL;
|
|
bug_ops.to_clone_and_follow_inferior = NULL;
|
|
bug_ops.to_post_follow_inferior_by_clone = NULL;
|
|
bug_ops.to_insert_fork_catchpoint = NULL;
|
|
bug_ops.to_remove_fork_catchpoint = NULL;
|
|
bug_ops.to_insert_vfork_catchpoint = NULL;
|
|
bug_ops.to_remove_vfork_catchpoint = NULL;
|
|
bug_ops.to_has_forked = NULL;
|
|
bug_ops.to_has_vforked = NULL;
|
|
bug_ops.to_can_follow_vfork_prior_to_exec = NULL;
|
|
bug_ops.to_post_follow_vfork = NULL;
|
|
bug_ops.to_insert_exec_catchpoint = NULL;
|
|
bug_ops.to_remove_exec_catchpoint = NULL;
|
|
bug_ops.to_has_execd = NULL;
|
|
bug_ops.to_reported_exec_events_per_exec_call = NULL;
|
|
bug_ops.to_has_exited = NULL;
|
|
bug_ops.to_mourn_inferior = gr_mourn;
|
|
bug_ops.to_can_run = 0;
|
|
bug_ops.to_notice_signals = 0;
|
|
bug_ops.to_thread_alive = 0;
|
|
bug_ops.to_stop = 0;
|
|
bug_ops.to_pid_to_exec_file = NULL;
|
|
bug_ops.to_stratum = process_stratum;
|
|
bug_ops.DONT_USE = 0;
|
|
bug_ops.to_has_all_memory = 1;
|
|
bug_ops.to_has_memory = 1;
|
|
bug_ops.to_has_stack = 1;
|
|
bug_ops.to_has_registers = 0;
|
|
bug_ops.to_has_execution = 0;
|
|
bug_ops.to_sections = 0;
|
|
bug_ops.to_sections_end = 0;
|
|
bug_ops.to_magic = OPS_MAGIC; /* Always the last thing */
|
|
} /* init_bug_ops */
|
|
|
|
void
|
|
_initialize_remote_bug (void)
|
|
{
|
|
init_bug_ops ();
|
|
add_target (&bug_ops);
|
|
|
|
add_show_from_set
|
|
(add_set_cmd ("srec-bytes", class_support, var_uinteger,
|
|
(char *) &srec_bytes,
|
|
"\
|
|
Set the number of bytes represented in each S-record.\n\
|
|
This affects the communication protocol with the remote target.",
|
|
&setlist),
|
|
&showlist);
|
|
|
|
add_show_from_set
|
|
(add_set_cmd ("srec-max-retries", class_support, var_uinteger,
|
|
(char *) &srec_max_retries,
|
|
"\
|
|
Set the number of retries for shipping S-records.\n\
|
|
This affects the communication protocol with the remote target.",
|
|
&setlist),
|
|
&showlist);
|
|
|
|
#if 0
|
|
/* This needs to set SREC_SIZE, not srec_frame which gets changed at the
|
|
end of a download. But do we need the option at all? */
|
|
add_show_from_set
|
|
(add_set_cmd ("srec-frame", class_support, var_uinteger,
|
|
(char *) &srec_frame,
|
|
"\
|
|
Set the number of bytes in an S-record frame.\n\
|
|
This affects the communication protocol with the remote target.",
|
|
&setlist),
|
|
&showlist);
|
|
#endif /* 0 */
|
|
|
|
add_show_from_set
|
|
(add_set_cmd ("srec-noise", class_support, var_zinteger,
|
|
(char *) &srec_noise,
|
|
"\
|
|
Set number of S-record to send before deliberately flubbing a checksum.\n\
|
|
Zero means flub none at all. This affects the communication protocol\n\
|
|
with the remote target.",
|
|
&setlist),
|
|
&showlist);
|
|
|
|
add_show_from_set
|
|
(add_set_cmd ("srec-sleep", class_support, var_zinteger,
|
|
(char *) &srec_sleep,
|
|
"\
|
|
Set number of seconds to sleep after an S-record for a possible error message to arrive.\n\
|
|
This affects the communication protocol with the remote target.",
|
|
&setlist),
|
|
&showlist);
|
|
|
|
add_show_from_set
|
|
(add_set_cmd ("srec-echo-pace", class_support, var_boolean,
|
|
(char *) &srec_echo_pace,
|
|
"\
|
|
Set echo-verification.\n\
|
|
When on, use verification by echo when downloading S-records. This is\n\
|
|
much slower, but generally more reliable.",
|
|
&setlist),
|
|
&showlist);
|
|
}
|