1999-04-16 09:35:26 +08:00
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/* Memory-access and commands for remote NINDY process, for GDB.
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2002-01-19 11:32:43 +08:00
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Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999,
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2000, 2001, 2002 Free Software Foundation, Inc.
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1999-04-16 09:35:26 +08:00
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Contributed by Intel Corporation. Modified from remote.c by Chris Benenati.
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1999-07-08 04:19:36 +08:00
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GDB is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY. No author or distributor accepts responsibility to anyone
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for the consequences of using it or for whether it serves any
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particular purpose or works at all, unless he says so in writing.
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Refer to the GDB General Public License for full details.
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Everyone is granted permission to copy, modify and redistribute GDB,
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but only under the conditions described in the GDB General Public
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License. A copy of this license is supposed to have been given to you
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along with GDB so you can know your rights and responsibilities. It
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should be in a file named COPYING. Among other things, the copyright
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notice and this notice must be preserved on all copies.
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In other words, go ahead and share GDB, but don't try to stop
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2002-01-19 11:32:43 +08:00
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anyone else from sharing it farther. Help stamp out software hoarding! */
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1999-04-16 09:35:26 +08:00
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/*
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1999-07-08 04:19:36 +08:00
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Except for the data cache routines, this file bears little resemblence
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to remote.c. A new (although similar) protocol has been specified, and
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portions of the code are entirely dependent on having an i80960 with a
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NINDY ROM monitor at the other end of the line.
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*/
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1999-04-16 09:35:26 +08:00
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/*****************************************************************************
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*
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* REMOTE COMMUNICATION PROTOCOL BETWEEN GDB960 AND THE NINDY ROM MONITOR.
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*
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*
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* MODES OF OPERATION
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* ----- -- ---------
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*
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* As far as NINDY is concerned, GDB is always in one of two modes: command
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* mode or passthrough mode.
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*
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* In command mode (the default) pre-defined packets containing requests
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* are sent by GDB to NINDY. NINDY never talks except in reponse to a request.
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*
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* Once the the user program is started, GDB enters passthrough mode, to give
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* the user program access to the terminal. GDB remains in this mode until
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* NINDY indicates that the program has stopped.
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*
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*
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* PASSTHROUGH MODE
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* ----------- ----
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*
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* GDB writes all input received from the keyboard directly to NINDY, and writes
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* all characters received from NINDY directly to the monitor.
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*
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* Keyboard input is neither buffered nor echoed to the monitor.
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*
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* GDB remains in passthrough mode until NINDY sends a single ^P character,
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* to indicate that the user process has stopped.
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*
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* Note:
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* GDB assumes NINDY performs a 'flushreg' when the user program stops.
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*
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*
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* COMMAND MODE
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* ------- ----
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*
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* All info (except for message ack and nak) is transferred between gdb
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* and the remote processor in messages of the following format:
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*
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* <info>#<checksum>
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*
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* where
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* # is a literal character
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*
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* <info> ASCII information; all numeric information is in the
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* form of hex digits ('0'-'9' and lowercase 'a'-'f').
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*
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* <checksum>
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* is a pair of ASCII hex digits representing an 8-bit
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* checksum formed by adding together each of the
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* characters in <info>.
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*
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* The receiver of a message always sends a single character to the sender
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* to indicate that the checksum was good ('+') or bad ('-'); the sender
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* re-transmits the entire message over until a '+' is received.
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*
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* In response to a command NINDY always sends back either data or
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* a result code of the form "Xnn", where "nn" are hex digits and "X00"
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* means no errors. (Exceptions: the "s" and "c" commands don't respond.)
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*
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* SEE THE HEADER OF THE FILE "gdb.c" IN THE NINDY MONITOR SOURCE CODE FOR A
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* FULL DESCRIPTION OF LEGAL COMMANDS.
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*
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* SEE THE FILE "stop.h" IN THE NINDY MONITOR SOURCE CODE FOR A LIST
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* OF STOP CODES.
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*
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***************************************************************************/
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#include "defs.h"
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#include <signal.h>
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#include <sys/types.h>
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#include <setjmp.h>
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#include "frame.h"
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#include "inferior.h"
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#include "bfd.h"
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#include "symfile.h"
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#include "target.h"
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#include "gdbcore.h"
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#include "command.h"
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#include "floatformat.h"
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2001-03-01 09:39:22 +08:00
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#include "regcache.h"
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1999-04-16 09:35:26 +08:00
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#include <sys/file.h>
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#include <ctype.h>
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#include "serial.h"
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#include "nindy-share/env.h"
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#include "nindy-share/stop.h"
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#include "remote-utils.h"
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1999-07-08 04:19:36 +08:00
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extern int unlink ();
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extern char *getenv ();
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extern char *mktemp ();
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1999-04-16 09:35:26 +08:00
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extern void generic_mourn_inferior ();
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extern struct target_ops nindy_ops;
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extern FILE *instream;
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extern char ninStopWhy ();
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extern int ninMemGet ();
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extern int ninMemPut ();
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1999-07-08 04:19:36 +08:00
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int nindy_initial_brk; /* nonzero if want to send an initial BREAK to nindy */
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int nindy_old_protocol; /* nonzero if want to use old protocol */
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char *nindy_ttyname; /* name of tty to talk to nindy on, or null */
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1999-04-16 09:35:26 +08:00
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1999-07-08 04:19:36 +08:00
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#define DLE '\020' /* Character NINDY sends to indicate user program has
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* halted. */
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1999-04-16 09:35:26 +08:00
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#define TRUE 1
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#define FALSE 0
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/* From nindy-share/nindy.c. */
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2001-07-12 01:52:32 +08:00
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extern struct serial *nindy_serial;
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1999-04-16 09:35:26 +08:00
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static int have_regs = 0; /* 1 iff regs read since i960 last halted */
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static int regs_changed = 0; /* 1 iff regs were modified since last read */
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1999-07-08 04:19:36 +08:00
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extern char *exists ();
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1999-04-16 09:35:26 +08:00
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2000-05-28 09:12:42 +08:00
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static void nindy_fetch_registers (int);
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1999-04-16 09:35:26 +08:00
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2000-05-28 09:12:42 +08:00
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static void nindy_store_registers (int);
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1999-04-16 09:35:26 +08:00
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static char *savename;
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static void
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2000-07-30 09:48:28 +08:00
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nindy_close (int quitting)
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1999-04-16 09:35:26 +08:00
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{
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if (nindy_serial != NULL)
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2001-07-16 04:34:14 +08:00
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serial_close (nindy_serial);
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1999-04-16 09:35:26 +08:00
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nindy_serial = NULL;
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if (savename)
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2000-12-15 09:01:51 +08:00
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xfree (savename);
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1999-04-16 09:35:26 +08:00
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savename = 0;
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}
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/* Open a connection to a remote debugger.
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FIXME, there should be "set" commands for the options that are
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now specified with gdb command-line options (old_protocol,
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and initial_brk). */
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void
|
2000-07-30 09:48:28 +08:00
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nindy_open (char *name, /* "/dev/ttyXX", "ttyXX", or "XX": tty to be opened */
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int from_tty)
|
1999-04-16 09:35:26 +08:00
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{
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char baudrate[1024];
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if (!name)
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error_no_arg ("serial port device name");
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target_preopen (from_tty);
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nindy_close (0);
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have_regs = regs_changed = 0;
|
2000-08-11 02:54:27 +08:00
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1999-04-16 09:35:26 +08:00
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/* Allow user to interrupt the following -- we could hang if there's
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no NINDY at the other end of the remote tty. */
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immediate_quit++;
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/* If baud_rate is -1, then ninConnect will not recognize the baud rate
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and will deal with the situation in a (more or less) reasonable
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fashion. */
|
1999-07-08 04:19:36 +08:00
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sprintf (baudrate, "%d", baud_rate);
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ninConnect (name, baudrate,
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nindy_initial_brk, !from_tty, nindy_old_protocol);
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1999-04-16 09:35:26 +08:00
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immediate_quit--;
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if (nindy_serial == NULL)
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{
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perror_with_name (name);
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}
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savename = savestring (name, strlen (name));
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push_target (&nindy_ops);
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|
1999-07-08 04:19:36 +08:00
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target_fetch_registers (-1);
|
1999-04-16 09:35:26 +08:00
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init_thread_list ();
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init_wait_for_inferior ();
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clear_proceed_status ();
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normal_stop ();
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}
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/* User-initiated quit of nindy operations. */
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static void
|
2000-07-30 09:48:28 +08:00
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nindy_detach (char *name, int from_tty)
|
1999-04-16 09:35:26 +08:00
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{
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if (name)
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error ("Too many arguments");
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pop_target ();
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}
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static void
|
2000-07-30 09:48:28 +08:00
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nindy_files_info (void)
|
1999-04-16 09:35:26 +08:00
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{
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/* FIXME: this lies about the baud rate if we autobauded. */
|
1999-07-08 04:19:36 +08:00
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printf_unfiltered ("\tAttached to %s at %d bits per second%s%s.\n", savename,
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baud_rate,
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nindy_old_protocol ? " in old protocol" : "",
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nindy_initial_brk ? " with initial break" : "");
|
1999-04-16 09:35:26 +08:00
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}
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|
2000-10-10 13:17:25 +08:00
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|
|
/* Return the number of characters in the buffer BUF before
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the first DLE character. N is maximum number of characters to
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consider. */
|
1999-04-16 09:35:26 +08:00
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static
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int
|
2000-10-10 13:17:25 +08:00
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non_dle (char *buf, int n)
|
1999-04-16 09:35:26 +08:00
|
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{
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|
int i;
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|
1999-07-08 04:19:36 +08:00
|
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|
for (i = 0; i < n; i++)
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{
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|
|
if (buf[i] == DLE)
|
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|
|
{
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|
break;
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|
|
}
|
1999-04-16 09:35:26 +08:00
|
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|
|
}
|
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|
|
return i;
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|
}
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|
/* Tell the remote machine to resume. */
|
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|
void
|
2001-05-04 12:15:33 +08:00
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|
nindy_resume (ptid_t ptid, int step, enum target_signal siggnal)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
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|
|
|
|
if (siggnal != TARGET_SIGNAL_0 && siggnal != stop_signal)
|
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|
|
warning ("Can't send signals to remote NINDY targets.");
|
|
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|
|
|
1999-07-08 04:19:36 +08:00
|
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|
|
if (regs_changed)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
nindy_store_registers (-1);
|
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|
|
|
regs_changed = 0;
|
|
|
|
|
}
|
|
|
|
|
have_regs = 0;
|
1999-07-08 04:19:36 +08:00
|
|
|
|
ninGo (step);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* FIXME, we can probably use the normal terminal_inferior stuff here.
|
|
|
|
|
We have to do terminal_inferior and then set up the passthrough
|
|
|
|
|
settings initially. Thereafter, terminal_ours and terminal_inferior
|
|
|
|
|
will automatically swap the settings around for us. */
|
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
|
struct clean_up_tty_args
|
|
|
|
|
{
|
1999-04-16 09:35:26 +08:00
|
|
|
|
serial_ttystate state;
|
2001-07-12 01:52:32 +08:00
|
|
|
|
struct serial *serial;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
};
|
1999-07-08 04:19:36 +08:00
|
|
|
|
static struct clean_up_tty_args tty_args;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
clean_up_tty (PTR ptrarg)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
struct clean_up_tty_args *args = (struct clean_up_tty_args *) ptrarg;
|
2001-07-16 04:34:14 +08:00
|
|
|
|
serial_set_tty_state (args->serial, args->state);
|
2000-12-15 09:01:51 +08:00
|
|
|
|
xfree (args->state);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
warning ("\n\nYou may need to reset the 80960 and/or reload your program.\n");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Recover from ^Z or ^C while remote process is running */
|
1999-07-08 04:19:36 +08:00
|
|
|
|
static void (*old_ctrlc) ();
|
1999-04-16 09:35:26 +08:00
|
|
|
|
#ifdef SIGTSTP
|
1999-07-08 04:19:36 +08:00
|
|
|
|
static void (*old_ctrlz) ();
|
1999-04-16 09:35:26 +08:00
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
clean_up_int (void)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
2001-07-16 04:34:14 +08:00
|
|
|
|
serial_set_tty_state (tty_args.serial, tty_args.state);
|
2000-12-15 09:01:51 +08:00
|
|
|
|
xfree (tty_args.state);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
|
signal (SIGINT, old_ctrlc);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
#ifdef SIGTSTP
|
1999-07-08 04:19:36 +08:00
|
|
|
|
signal (SIGTSTP, old_ctrlz);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
#endif
|
1999-07-08 04:19:36 +08:00
|
|
|
|
error ("\n\nYou may need to reset the 80960 and/or reload your program.\n");
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Wait until the remote machine stops. While waiting, operate in passthrough
|
|
|
|
|
* mode; i.e., pass everything NINDY sends to gdb_stdout, and everything from
|
|
|
|
|
* stdin to NINDY.
|
|
|
|
|
*
|
|
|
|
|
* Return to caller, storing status in 'status' just as `wait' would.
|
|
|
|
|
*/
|
|
|
|
|
|
2001-05-04 12:15:33 +08:00
|
|
|
|
static ptid_t
|
|
|
|
|
nindy_wait (ptid_t ptid, struct target_waitstatus *status)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
fd_set fds;
|
|
|
|
|
int c;
|
|
|
|
|
char buf[2];
|
|
|
|
|
int i, n;
|
|
|
|
|
unsigned char stop_exit;
|
|
|
|
|
unsigned char stop_code;
|
|
|
|
|
struct cleanup *old_cleanups;
|
|
|
|
|
long ip_value, fp_value, sp_value; /* Reg values from stop */
|
|
|
|
|
|
|
|
|
|
status->kind = TARGET_WAITKIND_EXITED;
|
|
|
|
|
status->value.integer = 0;
|
|
|
|
|
|
|
|
|
|
/* OPERATE IN PASSTHROUGH MODE UNTIL NINDY SENDS A DLE CHARACTER */
|
|
|
|
|
|
|
|
|
|
/* Save current tty attributes, and restore them when done. */
|
2001-07-16 04:34:14 +08:00
|
|
|
|
tty_args.serial = serial_fdopen (0);
|
|
|
|
|
tty_args.state = serial_get_tty_state (tty_args.serial);
|
1999-07-08 04:19:36 +08:00
|
|
|
|
old_ctrlc = signal (SIGINT, clean_up_int);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
#ifdef SIGTSTP
|
1999-07-08 04:19:36 +08:00
|
|
|
|
old_ctrlz = signal (SIGTSTP, clean_up_int);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
old_cleanups = make_cleanup (clean_up_tty, &tty_args);
|
|
|
|
|
|
|
|
|
|
/* Pass input from keyboard to NINDY as it arrives. NINDY will interpret
|
|
|
|
|
<CR> and perform echo. */
|
|
|
|
|
/* This used to set CBREAK and clear ECHO and CRMOD. I hope this is close
|
|
|
|
|
enough. */
|
2001-07-16 04:34:14 +08:00
|
|
|
|
serial_raw (tty_args.serial);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
/* Input on remote */
|
2001-07-16 04:34:14 +08:00
|
|
|
|
c = serial_readchar (nindy_serial, -1);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
if (c == SERIAL_ERROR)
|
|
|
|
|
{
|
|
|
|
|
error ("Cannot read from serial line");
|
|
|
|
|
}
|
1999-07-08 04:19:36 +08:00
|
|
|
|
else if (c == 0x1b) /* ESC */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
2001-07-16 04:34:14 +08:00
|
|
|
|
c = serial_readchar (nindy_serial, -1);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
c &= ~0x40;
|
1999-07-08 04:19:36 +08:00
|
|
|
|
}
|
|
|
|
|
else if (c != 0x10) /* DLE */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
/* Write out any characters preceding DLE */
|
|
|
|
|
{
|
1999-07-08 04:19:36 +08:00
|
|
|
|
buf[0] = (char) c;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
write (1, buf, 1);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1999-07-08 04:19:36 +08:00
|
|
|
|
stop_exit = ninStopWhy (&stop_code,
|
|
|
|
|
&ip_value, &fp_value, &sp_value);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
if (!stop_exit && (stop_code == STOP_SRQ))
|
|
|
|
|
{
|
|
|
|
|
immediate_quit++;
|
1999-07-08 04:19:36 +08:00
|
|
|
|
ninSrq ();
|
1999-04-16 09:35:26 +08:00
|
|
|
|
immediate_quit--;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* Get out of loop */
|
1999-07-08 04:19:36 +08:00
|
|
|
|
supply_register (IP_REGNUM,
|
|
|
|
|
(char *) &ip_value);
|
|
|
|
|
supply_register (FP_REGNUM,
|
|
|
|
|
(char *) &fp_value);
|
|
|
|
|
supply_register (SP_REGNUM,
|
|
|
|
|
(char *) &sp_value);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2001-07-16 04:34:14 +08:00
|
|
|
|
serial_set_tty_state (tty_args.serial, tty_args.state);
|
2000-12-15 09:01:51 +08:00
|
|
|
|
xfree (tty_args.state);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
discard_cleanups (old_cleanups);
|
|
|
|
|
|
|
|
|
|
if (stop_exit)
|
|
|
|
|
{
|
|
|
|
|
status->kind = TARGET_WAITKIND_EXITED;
|
|
|
|
|
status->value.integer = stop_code;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* nindy has some special stop code need to be handled */
|
|
|
|
|
if (stop_code == STOP_GDB_BPT)
|
|
|
|
|
stop_code = TRACE_STEP;
|
|
|
|
|
status->kind = TARGET_WAITKIND_STOPPED;
|
|
|
|
|
status->value.sig = i960_fault_to_signal (stop_code);
|
|
|
|
|
}
|
2001-05-04 12:15:33 +08:00
|
|
|
|
return inferior_ptid;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Read the remote registers into the block REGS. */
|
|
|
|
|
|
|
|
|
|
/* This is the block that ninRegsGet and ninRegsPut handles. */
|
1999-07-08 04:19:36 +08:00
|
|
|
|
struct nindy_regs
|
|
|
|
|
{
|
|
|
|
|
char local_regs[16 * 4];
|
|
|
|
|
char global_regs[16 * 4];
|
|
|
|
|
char pcw_acw[2 * 4];
|
|
|
|
|
char ip[4];
|
|
|
|
|
char tcw[4];
|
|
|
|
|
char fp_as_double[4 * 8];
|
1999-04-16 09:35:26 +08:00
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
nindy_fetch_registers (int regno)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
struct nindy_regs nindy_regs;
|
|
|
|
|
int regnum;
|
|
|
|
|
|
|
|
|
|
immediate_quit++;
|
1999-07-08 04:19:36 +08:00
|
|
|
|
ninRegsGet ((char *) &nindy_regs);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
immediate_quit--;
|
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
|
memcpy (®isters[REGISTER_BYTE (R0_REGNUM)], nindy_regs.local_regs, 16 * 4);
|
|
|
|
|
memcpy (®isters[REGISTER_BYTE (G0_REGNUM)], nindy_regs.global_regs, 16 * 4);
|
|
|
|
|
memcpy (®isters[REGISTER_BYTE (PCW_REGNUM)], nindy_regs.pcw_acw, 2 * 4);
|
|
|
|
|
memcpy (®isters[REGISTER_BYTE (IP_REGNUM)], nindy_regs.ip, 1 * 4);
|
|
|
|
|
memcpy (®isters[REGISTER_BYTE (TCW_REGNUM)], nindy_regs.tcw, 1 * 4);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], nindy_regs.fp_as_double, 4 * 8);
|
|
|
|
|
|
|
|
|
|
registers_fetched ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
nindy_prepare_to_store (void)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
/* Fetch all regs if they aren't already here. */
|
|
|
|
|
read_register_bytes (0, NULL, REGISTER_BYTES);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
nindy_store_registers (int regno)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
struct nindy_regs nindy_regs;
|
|
|
|
|
int regnum;
|
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
|
memcpy (nindy_regs.local_regs, ®isters[REGISTER_BYTE (R0_REGNUM)], 16 * 4);
|
|
|
|
|
memcpy (nindy_regs.global_regs, ®isters[REGISTER_BYTE (G0_REGNUM)], 16 * 4);
|
|
|
|
|
memcpy (nindy_regs.pcw_acw, ®isters[REGISTER_BYTE (PCW_REGNUM)], 2 * 4);
|
|
|
|
|
memcpy (nindy_regs.ip, ®isters[REGISTER_BYTE (IP_REGNUM)], 1 * 4);
|
|
|
|
|
memcpy (nindy_regs.tcw, ®isters[REGISTER_BYTE (TCW_REGNUM)], 1 * 4);
|
|
|
|
|
memcpy (nindy_regs.fp_as_double, ®isters[REGISTER_BYTE (FP0_REGNUM)], 8 * 4);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
|
immediate_quit++;
|
1999-07-08 04:19:36 +08:00
|
|
|
|
ninRegsPut ((char *) &nindy_regs);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
immediate_quit--;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Copy LEN bytes to or from inferior's memory starting at MEMADDR
|
|
|
|
|
to debugger memory starting at MYADDR. Copy to inferior if
|
2000-10-10 13:17:25 +08:00
|
|
|
|
SHOULD_WRITE is nonzero. Returns the length copied. TARGET is
|
|
|
|
|
unused. */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
|
int
|
2000-10-10 13:17:25 +08:00
|
|
|
|
nindy_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len,
|
2002-01-19 11:32:43 +08:00
|
|
|
|
int should_write, struct mem_attrib *attrib,
|
|
|
|
|
struct target_ops *target)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
2000-11-04 06:00:56 +08:00
|
|
|
|
int res;
|
|
|
|
|
|
2000-06-20 02:59:07 +08:00
|
|
|
|
if (len <= 0)
|
|
|
|
|
return 0;
|
2000-11-04 06:00:56 +08:00
|
|
|
|
|
|
|
|
|
if (should_write)
|
|
|
|
|
res = ninMemPut (memaddr, myaddr, len);
|
|
|
|
|
else
|
|
|
|
|
res = ninMemGet (memaddr, myaddr, len);
|
|
|
|
|
|
|
|
|
|
return res;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
nindy_create_inferior (char *execfile, char *args, char **env)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
int entry_pt;
|
|
|
|
|
int pid;
|
|
|
|
|
|
|
|
|
|
if (args && *args)
|
|
|
|
|
error ("Can't pass arguments to remote NINDY process");
|
|
|
|
|
|
|
|
|
|
if (execfile == 0 || exec_bfd == 0)
|
|
|
|
|
error ("No executable file specified");
|
|
|
|
|
|
|
|
|
|
entry_pt = (int) bfd_get_start_address (exec_bfd);
|
|
|
|
|
|
|
|
|
|
pid = 42;
|
|
|
|
|
|
|
|
|
|
/* The "process" (board) is already stopped awaiting our commands, and
|
|
|
|
|
the program is already downloaded. We just set its PC and go. */
|
|
|
|
|
|
2001-05-04 12:15:33 +08:00
|
|
|
|
inferior_ptid = pid_to_ptid (pid); /* Needed for wait_for_inferior below */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
|
|
clear_proceed_status ();
|
|
|
|
|
|
|
|
|
|
/* Tell wait_for_inferior that we've started a new process. */
|
|
|
|
|
init_wait_for_inferior ();
|
|
|
|
|
|
|
|
|
|
/* Set up the "saved terminal modes" of the inferior
|
|
|
|
|
based on what modes we are starting it with. */
|
|
|
|
|
target_terminal_init ();
|
|
|
|
|
|
|
|
|
|
/* Install inferior's terminal modes. */
|
|
|
|
|
target_terminal_inferior ();
|
|
|
|
|
|
|
|
|
|
/* insert_step_breakpoint (); FIXME, do we need this? */
|
|
|
|
|
/* Let 'er rip... */
|
1999-07-08 04:19:36 +08:00
|
|
|
|
proceed ((CORE_ADDR) entry_pt, TARGET_SIGNAL_DEFAULT, 0);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
reset_command (char *args, int from_tty)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
if (nindy_serial == NULL)
|
|
|
|
|
{
|
1999-07-08 04:19:36 +08:00
|
|
|
|
error ("No target system to reset -- use 'target nindy' command.");
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
1999-07-08 04:19:36 +08:00
|
|
|
|
if (query ("Really reset the target system?", 0, 0))
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
2001-07-16 04:34:14 +08:00
|
|
|
|
serial_send_break (nindy_serial);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
tty_flush (nindy_serial);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
nindy_kill (char *args, int from_tty)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
1999-07-08 04:19:36 +08:00
|
|
|
|
return; /* Ignore attempts to kill target system */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Clean up when a program exits.
|
|
|
|
|
|
|
|
|
|
The program actually lives on in the remote processor's RAM, and may be
|
|
|
|
|
run again without a download. Don't leave it full of breakpoint
|
|
|
|
|
instructions. */
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
nindy_mourn_inferior (void)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
remove_breakpoints ();
|
|
|
|
|
unpush_target (&nindy_ops);
|
|
|
|
|
generic_mourn_inferior (); /* Do all the proper things now */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Pass the args the way catch_errors wants them. */
|
|
|
|
|
static int
|
2000-07-30 09:48:28 +08:00
|
|
|
|
nindy_open_stub (char *arg)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
nindy_open (arg, 1);
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
nindy_load (char *filename, int from_tty)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
asection *s;
|
|
|
|
|
/* Can't do unix style forking on a VMS system, so we'll use bfd to do
|
|
|
|
|
all the work for us
|
1999-07-08 04:19:36 +08:00
|
|
|
|
*/
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
|
bfd *file = bfd_openr (filename, 0);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
if (!file)
|
|
|
|
|
{
|
1999-07-08 04:19:36 +08:00
|
|
|
|
perror_with_name (filename);
|
|
|
|
|
return;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
1999-07-08 04:19:36 +08:00
|
|
|
|
|
|
|
|
|
if (!bfd_check_format (file, bfd_object))
|
|
|
|
|
{
|
|
|
|
|
error ("can't prove it's an object file\n");
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (s = file->sections; s; s = s->next)
|
|
|
|
|
{
|
|
|
|
|
if (s->flags & SEC_LOAD)
|
|
|
|
|
{
|
|
|
|
|
char *buffer = xmalloc (s->_raw_size);
|
|
|
|
|
bfd_get_section_contents (file, s, buffer, 0, s->_raw_size);
|
|
|
|
|
printf ("Loading section %s, size %x vma %x\n",
|
|
|
|
|
s->name,
|
|
|
|
|
s->_raw_size,
|
|
|
|
|
s->vma);
|
|
|
|
|
ninMemPut (s->vma, buffer, s->_raw_size);
|
2000-12-15 09:01:51 +08:00
|
|
|
|
xfree (buffer);
|
1999-07-08 04:19:36 +08:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
bfd_close (file);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int
|
2000-07-30 09:48:28 +08:00
|
|
|
|
load_stub (char *arg)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
target_load (arg, 1);
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This routine is run as a hook, just before the main command loop is
|
|
|
|
|
entered. If gdb is configured for the i960, but has not had its
|
|
|
|
|
nindy target specified yet, this will loop prompting the user to do so.
|
|
|
|
|
|
|
|
|
|
Unlike the loop provided by Intel, we actually let the user get out
|
|
|
|
|
of this with a RETURN. This is useful when e.g. simply examining
|
|
|
|
|
an i960 object file on the host system. */
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
nindy_before_main_loop (void)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
|
|
|
|
char ttyname[100];
|
|
|
|
|
char *p, *p2;
|
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
|
while (target_stack->target_ops != &nindy_ops) /* What is this crap??? */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{ /* remote tty not specified yet */
|
1999-07-08 04:19:36 +08:00
|
|
|
|
if (instream == stdin)
|
|
|
|
|
{
|
|
|
|
|
printf_unfiltered ("\nAttach /dev/ttyNN -- specify NN, or \"quit\" to quit: ");
|
|
|
|
|
gdb_flush (gdb_stdout);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
1999-07-08 04:19:36 +08:00
|
|
|
|
fgets (ttyname, sizeof (ttyname) - 1, stdin);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
|
/* Strip leading and trailing whitespace */
|
|
|
|
|
for (p = ttyname; isspace (*p); p++)
|
|
|
|
|
{
|
|
|
|
|
;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
1999-07-08 04:19:36 +08:00
|
|
|
|
if (*p == '\0')
|
|
|
|
|
{
|
|
|
|
|
return; /* User just hit spaces or return, wants out */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
1999-07-08 04:19:36 +08:00
|
|
|
|
for (p2 = p; !isspace (*p2) && (*p2 != '\0'); p2++)
|
|
|
|
|
{
|
|
|
|
|
;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
1999-07-08 04:19:36 +08:00
|
|
|
|
*p2 = '\0';
|
|
|
|
|
if (STREQ ("quit", p))
|
|
|
|
|
{
|
|
|
|
|
exit (1);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
|
if (catch_errors (nindy_open_stub, p, "", RETURN_MASK_ALL))
|
|
|
|
|
{
|
|
|
|
|
/* Now that we have a tty open for talking to the remote machine,
|
|
|
|
|
download the executable file if one was specified. */
|
|
|
|
|
if (exec_bfd)
|
|
|
|
|
{
|
|
|
|
|
catch_errors (load_stub, bfd_get_filename (exec_bfd), "",
|
|
|
|
|
RETURN_MASK_ALL);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Define the target subroutine names */
|
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
|
struct target_ops nindy_ops;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
|
static void
|
|
|
|
|
init_nindy_ops (void)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
1999-07-08 04:19:36 +08:00
|
|
|
|
nindy_ops.to_shortname = "nindy";
|
|
|
|
|
"Remote serial target in i960 NINDY-specific protocol",
|
|
|
|
|
nindy_ops.to_longname = "Use a remote i960 system running NINDY connected by a serial line.\n\
|
1999-04-16 09:35:26 +08:00
|
|
|
|
Specify the name of the device the serial line is connected to.\n\
|
|
|
|
|
The speed (baud rate), whether to use the old NINDY protocol,\n\
|
|
|
|
|
and whether to send a break on startup, are controlled by options\n\
|
1999-07-08 04:19:36 +08:00
|
|
|
|
specified when you started GDB.";
|
|
|
|
|
nindy_ops.to_doc = "";
|
|
|
|
|
nindy_ops.to_open = nindy_open;
|
|
|
|
|
nindy_ops.to_close = nindy_close;
|
|
|
|
|
nindy_ops.to_attach = 0;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
nindy_ops.to_post_attach = NULL;
|
|
|
|
|
nindy_ops.to_require_attach = NULL;
|
1999-07-08 04:19:36 +08:00
|
|
|
|
nindy_ops.to_detach = nindy_detach;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
nindy_ops.to_require_detach = NULL;
|
1999-07-08 04:19:36 +08:00
|
|
|
|
nindy_ops.to_resume = nindy_resume;
|
|
|
|
|
nindy_ops.to_wait = nindy_wait;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
nindy_ops.to_post_wait = NULL;
|
1999-07-08 04:19:36 +08:00
|
|
|
|
nindy_ops.to_fetch_registers = nindy_fetch_registers;
|
|
|
|
|
nindy_ops.to_store_registers = nindy_store_registers;
|
|
|
|
|
nindy_ops.to_prepare_to_store = nindy_prepare_to_store;
|
|
|
|
|
nindy_ops.to_xfer_memory = nindy_xfer_inferior_memory;
|
|
|
|
|
nindy_ops.to_files_info = nindy_files_info;
|
|
|
|
|
nindy_ops.to_insert_breakpoint = memory_insert_breakpoint;
|
|
|
|
|
nindy_ops.to_remove_breakpoint = memory_remove_breakpoint;
|
|
|
|
|
nindy_ops.to_terminal_init = 0;
|
|
|
|
|
nindy_ops.to_terminal_inferior = 0;
|
|
|
|
|
nindy_ops.to_terminal_ours_for_output = 0;
|
|
|
|
|
nindy_ops.to_terminal_ours = 0;
|
|
|
|
|
nindy_ops.to_terminal_info = 0; /* Terminal crud */
|
|
|
|
|
nindy_ops.to_kill = nindy_kill;
|
|
|
|
|
nindy_ops.to_load = nindy_load;
|
|
|
|
|
nindy_ops.to_lookup_symbol = 0; /* lookup_symbol */
|
|
|
|
|
nindy_ops.to_create_inferior = nindy_create_inferior;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
nindy_ops.to_post_startup_inferior = NULL;
|
|
|
|
|
nindy_ops.to_acknowledge_created_inferior = NULL;
|
|
|
|
|
nindy_ops.to_clone_and_follow_inferior = NULL;
|
|
|
|
|
nindy_ops.to_post_follow_inferior_by_clone = NULL;
|
|
|
|
|
nindy_ops.to_insert_fork_catchpoint = NULL;
|
|
|
|
|
nindy_ops.to_remove_fork_catchpoint = NULL;
|
|
|
|
|
nindy_ops.to_insert_vfork_catchpoint = NULL;
|
|
|
|
|
nindy_ops.to_remove_vfork_catchpoint = NULL;
|
|
|
|
|
nindy_ops.to_has_forked = NULL;
|
|
|
|
|
nindy_ops.to_has_vforked = NULL;
|
|
|
|
|
nindy_ops.to_can_follow_vfork_prior_to_exec = NULL;
|
|
|
|
|
nindy_ops.to_post_follow_vfork = NULL;
|
|
|
|
|
nindy_ops.to_insert_exec_catchpoint = NULL;
|
|
|
|
|
nindy_ops.to_remove_exec_catchpoint = NULL;
|
|
|
|
|
nindy_ops.to_has_execd = NULL;
|
|
|
|
|
nindy_ops.to_reported_exec_events_per_exec_call = NULL;
|
|
|
|
|
nindy_ops.to_has_exited = NULL;
|
1999-07-08 04:19:36 +08:00
|
|
|
|
nindy_ops.to_mourn_inferior = nindy_mourn_inferior;
|
|
|
|
|
nindy_ops.to_can_run = 0; /* can_run */
|
|
|
|
|
nindy_ops.to_notice_signals = 0; /* notice_signals */
|
|
|
|
|
nindy_ops.to_thread_alive = 0; /* to_thread_alive */
|
|
|
|
|
nindy_ops.to_stop = 0; /* to_stop */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
nindy_ops.to_pid_to_exec_file = NULL;
|
1999-07-08 04:19:36 +08:00
|
|
|
|
nindy_ops.to_stratum = process_stratum;
|
|
|
|
|
nindy_ops.DONT_USE = 0; /* next */
|
|
|
|
|
nindy_ops.to_has_all_memory = 1;
|
|
|
|
|
nindy_ops.to_has_memory = 1;
|
|
|
|
|
nindy_ops.to_has_stack = 1;
|
|
|
|
|
nindy_ops.to_has_registers = 1;
|
|
|
|
|
nindy_ops.to_has_execution = 1; /* all mem, mem, stack, regs, exec */
|
|
|
|
|
nindy_ops.to_sections = 0;
|
|
|
|
|
nindy_ops.to_sections_end = 0; /* Section pointers */
|
|
|
|
|
nindy_ops.to_magic = OPS_MAGIC; /* Always the last thing */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 09:48:28 +08:00
|
|
|
|
_initialize_nindy (void)
|
1999-04-16 09:35:26 +08:00
|
|
|
|
{
|
1999-07-08 04:19:36 +08:00
|
|
|
|
init_nindy_ops ();
|
1999-04-16 09:35:26 +08:00
|
|
|
|
add_target (&nindy_ops);
|
|
|
|
|
add_com ("reset", class_obscure, reset_command,
|
|
|
|
|
"Send a 'break' to the remote target system.\n\
|
|
|
|
|
Only useful if the target has been equipped with a circuit\n\
|
|
|
|
|
to perform a hard reset when a break is detected.");
|
|
|
|
|
}
|