--- /dev/null
+_dnl__ -*- Texinfo -*-
+_dnl__ Copyright (c) 1990 1991 Free Software Foundation, Inc.
+_dnl__ This file is part of the source for the GDB manual.
+@c M4 FRAGMENT $Id$
+@c This text diverted to "Remote Debugging" section in general case;
+@c however, if we're doing a manual specifically for one of these, it
+@c belongs up front (in "Getting In and Out" chapter).
+_if__(_I960__)
+_if__(!_GENERIC__)
+@node i960-Nindy Remote, EB29K Remote, Mode Options, Starting _GDBN__
+_fi__(!_GENERIC__)
+_if__(_GENERIC__)
+@node i960-Nindy Remote, EB29K Remote, Remote, Remote
+_fi__(_GENERIC__)
+@subsection _GDBN__ with a Remote i960 (Nindy)
+
+@cindex Nindy
+@cindex i960
+@dfn{Nindy} is a ROM Monitor program for Intel 960 target systems. When
+_GDBN__ is configured to control a remote Intel 960 using Nindy, you can
+tell _GDBN__ how to connect to the 960 in several ways:
+
+@itemize @bullet
+@item
+Through command line options specifying serial port, version of the
+Nindy protocol, and communications speed;
+
+@item
+By responding to a prompt on startup;
+
+@item
+By using the @code{target} command at any point during your _GDBN__
+session. @xref{Target Commands}.
+
+@end itemize
+
+@menu
+* Nindy Startup:: Startup with Nindy
+* Nindy Options:: Options for Nindy
+* Nindy reset:: Nindy Reset Command
+@end menu
+
+@node Nindy Startup, Nindy Options, i960-Nindy Remote, i960-Nindy Remote
+@subsubsection Startup with Nindy
+
+If you simply start @code{_GDBN__} without using any command-line
+options, you are prompted for what serial port to use, @emph{before} you
+reach the ordinary _GDBN__ prompt:
+@example
+Attach /dev/ttyNN -- specify NN, or "quit" to quit:
+@end example
+@noindent
+Respond to the prompt with whatever suffix (after @samp{/dev/tty})
+identifies the serial port you want to use. You can, if you choose,
+simply start up with no Nindy connection by responding to the prompt
+with an empty line. If you do this, and later wish to attach to Nindy,
+use @code{target} (@pxref{Target Commands}).
+
+@node Nindy Options, Nindy reset, Nindy Startup, i960-Nindy Remote
+@subsubsection Options for Nindy
+
+These are the startup options for beginning your _GDBN__ session with a
+Nindy-960 board attached:
+
+@table @code
+@item -r @var{port}
+Specify the serial port name of a serial interface to be used to connect
+to the target system. This option is only available when _GDBN__ is
+configured for the Intel 960 target architecture. You may specify
+@var{port} as any of: a full pathname (e.g. @samp{-r /dev/ttya}), a
+device name in @file{/dev} (e.g. @samp{-r ttya}), or simply the unique
+suffix for a specific @code{tty} (e.g. @samp{-r a}).
+
+@item -O
+(An uppercase letter ``O'', not a zero.) Specify that _GDBN__ should use
+the ``old'' Nindy monitor protocol to connect to the target system.
+This option is only available when _GDBN__ is configured for the Intel 960
+target architecture.
+
+@quotation
+@emph{Warning:} if you specify @samp{-O}, but are actually trying to
+connect to a target system that expects the newer protocol, the connection
+will fail, appearing to be a speed mismatch. _GDBN__ will repeatedly
+attempt to reconnect at several different line speeds. You can abort
+this process with an interrupt.
+@end quotation
+
+@item -brk
+Specify that _GDBN__ should first send a @code{BREAK} signal to the target
+system, in an attempt to reset it, before connecting to a Nindy target.
+
+@quotation
+@emph{Warning:} Many target systems do not have the hardware that this
+requires; it only works with a few boards.
+@end quotation
+
+@end table
+
+The standard @samp{-b} option controls the line speed used on the serial
+port.
+
+@node Nindy reset, , Nindy Options, i960-Nindy Remote
+@c @group
+@subsubsection Nindy Reset Command
+@table @code
+@item reset
+@kindex reset
+For a Nindy target, this command sends a ``break'' to the remote target
+system; this is only useful if the target has been equipped with a
+circuit to perform a hard reset (or some other interesting action) when
+a break is detected.
+@end table
+@c @end group
+_fi__(_I960__)
+
+_if__(_AMD29K__)
+_if__(!_GENERIC__)
+@node EB29K Remote, VxWorks Remote, i960-Nindy Remote, Starting _GDBN__
+_fi__(!_GENERIC__)
+_if__(_GENERIC__)
+@node EB29K Remote, VxWorks Remote, i960-Nindy Remote, Remote
+_fi__(_GENERIC__)
+@subsection _GDBN__ with a Remote EB29K
+
+@cindex EB29K board
+@cindex running 29K programs
+
+To use _GDBN__ from a Unix system to run programs on AMD's EB29K
+board in a PC, you must first connect a serial cable between the PC
+and a serial port on the Unix system. In the following, we assume
+you've hooked the cable between the PC's @file{COM1} port and
+@file{/dev/ttya} on the Unix system.
+
+@menu
+* Comms (EB29K):: Communications Setup
+* _GDBP__-EB29K:: EB29K cross-debugging
+* Remote Log:: Remote Log
+@end menu
+
+@node Comms (EB29K), _GDBP__-EB29K, EB29K Remote, EB29K Remote
+@subsubsection Communications Setup
+The next step is to set up the PC's port, by doing something like the
+following in DOS on the PC:
+_0__@example
+C:\> MODE com1:9600,n,8,1,none
+_1__@end example
+@noindent
+This example---run on an MS DOS 4.0 system---sets the PC port to 9600
+bps, no parity, eight data bits, one stop bit, and no ``retry'' action;
+you must match the communications parameters when establishing the Unix
+end of the connection as well.
+@c FIXME: Who knows what this "no retry action" crud from the DOS manual may
+@c mean? It's optional; leave it out? ---pesch@cygnus.com, 25feb91
+
+To give control of the PC to the Unix side of the serial line, type
+the following at the DOS console:
+_0__@example
+C:\> CTTY com1
+_1__@end example
+@noindent
+(Later, if you wish to return control to the DOS console, you can use
+the command @code{CTTY con}---but you must send it over the device that
+had control, in our example over the @file{COM1} serial line).
+
+From the Unix host, use a communications program such as @code{tip} or
+@code{cu} to communicate with the PC; for example,
+@example
+cu -s 9600 -l /dev/ttya
+@end example
+@noindent
+The @code{cu} options shown specify, respectively, the linespeed and the
+serial port to use. If you use @code{tip} instead, your command line
+may look something like the following:
+@example
+tip -9600 /dev/ttya
+@end example
+@noindent
+Your system may define a different name where our example uses
+@file{/dev/ttya} as the argument to @code{tip}. The communications
+parameters, including what port to use, are associated with the
+@code{tip} argument in the ``remote'' descriptions file---normally the
+system table @file{/etc/remote}.
+@c FIXME: What if anything needs doing to match the "n,8,1,none" part of
+@c the DOS side's comms setup? cu can support -o (odd
+@c parity), -e (even parity)---apparently no settings for no parity or
+@c for character size. Taken from stty maybe...? John points out tip
+@c can set these as internal variables, eg ~s parity=none; man stty
+@c suggests that it *might* work to stty these options with stdin or
+@c stdout redirected... ---pesch@cygnus.com, 25feb91
+
+@kindex EBMON
+Using the @code{tip} or @code{cu} connection, change the DOS working
+directory to the directory containing a copy of your 29K program, then
+start the PC program @code{EBMON} (an EB29K control program supplied
+with your board by AMD). You should see an initial display from
+@code{EBMON} similar to the one that follows, ending with the
+@code{EBMON} prompt @samp{#}---
+_0__@example
+C:\> G:
+
+G:\> CD \usr\joe\work29k
+
+G:\USR\JOE\WORK29K> EBMON
+Am29000 PC Coprocessor Board Monitor, version 3.0-18
+Copyright 1990 Advanced Micro Devices, Inc.
+Written by Gibbons and Associates, Inc.
+
+Enter '?' or 'H' for help
+
+PC Coprocessor Type = EB29K
+I/O Base = 0x208
+Memory Base = 0xd0000
+
+Data Memory Size = 2048KB
+Available I-RAM Range = 0x8000 to 0x1fffff
+Available D-RAM Range = 0x80002000 to 0x801fffff
+
+PageSize = 0x400
+Register Stack Size = 0x800
+Memory Stack Size = 0x1800
+
+CPU PRL = 0x3
+Am29027 Available = No
+Byte Write Available = Yes
+
+# ~.
+_1__@end example
+
+Then exit the @code{cu} or @code{tip} program (done in the example by
+typing @code{~.} at the @code{EBMON} prompt). @code{EBMON} will keep
+running, ready for _GDBN__ to take over.
+
+For this example, we've assumed what is probably the most convenient
+way to make sure the same 29K program is on both the PC and the Unix
+system: a PC/NFS connection that establishes ``drive @code{G:}'' on the
+PC as a file system on the Unix host. If you don't have PC/NFS or
+something similar connecting the two systems, you must arrange some
+other way---perhaps floppy-disk transfer---of getting the 29K program
+from the Unix system to the PC; _GDBN__ will @emph{not} download it over the
+serial line.
+
+@node _GDBP__-EB29K, Remote Log, Comms (EB29K), EB29K Remote
+@subsubsection EB29K cross-debugging
+Finally, @code{cd} to the directory containing an image of your 29K
+program on the Unix system, and start _GDBN__---specifying as argument the
+name of your 29K program:
+@example
+cd /usr/joe/work29k
+_GDBP__ myfoo
+@end example
+Now you can use the @code{target} command:
+@example
+target amd-eb /dev/ttya 9600 MYFOO
+@end example
+@c FIXME: test above 'target amd-eb' as spelled, with caps! caps are meant to
+@c emphasize that this is the name as seen by DOS (since I think DOS is
+@c single-minded about case of letters). ---pesch@cygnus.com, 25feb91
+
+@noindent
+In this example, we've assumed your program is in a file called
+@file{myfoo}. Note that the filename given as the last argument to
+@code{target amd-eb} should be the name of the program as it appears to DOS.
+In our example this is simply @code{MYFOO}, but in general it can include
+a DOS path, and depending on your transfer mechanism may not resemble
+the name on the Unix side.
+
+At this point, you can set any breakpoints you wish; when you're ready
+to see your program run on the 29K board, use the _GDBN__ command
+@code{run}.
+
+To stop debugging the remote program, use the _GDBN__ @code{detach}
+command.
+
+To return control of the PC to its console, use @code{tip} or @code{cu}
+once again, after your _GDBN__ session has concluded, to attach to
+@code{EBMON}. You can then type the command @code{q} to shut down
+@code{EBMON}, returning control to the DOS command-line interpreter.
+Type @code{CTTY con} to return command input to the main DOS console,
+and type @kbd{~.} to leave @code{tip} or @code{cu}.
+
+@node Remote Log, , _GDBP__-EB29K, EB29K Remote
+@subsubsection Remote Log
+@kindex eb.log
+@cindex log file for EB29K
+The @code{target amd-eb} command creates a file @file{eb.log} in the
+current working directory, to help debug problems with the connection.
+@file{eb.log} records all the output from @code{EBMON}, including echoes
+of the commands sent to it. Running @samp{tail -f} on this file in
+another window often helps to understand trouble with @code{EBMON}, or
+unexpected events on the PC side of the connection.
+_fi__(_AMD29K__)
+
+_if__(_VXWORKS__)
+_if__(!_GENERIC__)
+@node VxWorks Remote, , EB29K Remote, Starting _GDBN__
+_fi__(!_GENERIC__)
+_if__(_GENERIC__)
+@node VxWorks Remote, , EB29K Remote, Remote
+_fi__(_GENERIC__)
+@subsection _GDBN__ and VxWorks
+@cindex VxWorks
+_GDBN__ enables developers to spawn and debug tasks running on networked
+VxWorks targets from a Unix host. Already-running tasks spawned from
+the VxWorks shell can also be debugged. _GDBN__ uses code that runs on
+both the UNIX host and on the VxWorks target. The program
+@code{_GDBP__} is installed and executed on the UNIX host.
+
+The remote debugging interface (RDB) routines are installed and executed
+on the VxWorks target. These routines are included in the VxWorks library
+@file{rdb.a} and are incorporated into the system image when source-level
+debugging is enabled in the VxWorks configuration.
+
+@kindex INCLUDE_RDB
+You can define @code{INCLUDE_RDB} in the VxWorks configuration file
+@file{configAll.h} to include the RDB interface routines and spawn the
+source debugging task @code{tRdbTask} when VxWorks is booted. For more
+information on configuring and remaking VxWorks, see the @cite{VxWorks
+Programmer's Guide}.
+
+Once you have included the RDB interface in your VxWorks system image
+and set your Unix execution search path to find _GDBN__, you are ready
+to run _GDBN__. From your UNIX host, type:
+
+@smallexample
+% _GDBP__
+@end smallexample
+
+_GDBN__ will come up showing the prompt:
+
+@smallexample
+(_GDBP__)
+@end smallexample
+
+@menu
+* VxWorks connection:: Connecting to VxWorks
+* VxWorks download:: VxWorks Download
+* VxWorks attach:: Running Tasks
+@end menu
+
+@node VxWorks connection, VxWorks download, VxWorks Remote, VxWorks Remote
+@subsubsection Connecting to VxWorks
+
+The _GDBN__ command @code{target} lets you connect to a VxWorks target on the
+network. To connect to a target whose host name is ``@code{tt}'', type:
+
+@smallexample
+(_GDBP__) target vxworks tt
+@end smallexample
+
+_GDBN__ will display a message similar to the following:
+
+@smallexample
+Attaching remote machine across net... Success!
+@end smallexample
+
+_GDBN__ will then attempt to read the symbol tables of any object
+modules loaded into the VxWorks target since it was last booted.
+_GDBN__ locates these files by searching the directories listed in the
+command search path (@pxref{Environment}); if it fails to find an
+object file, it will display a message such as:
+
+@smallexample
+prog.o: No such file or directory.
+@end smallexample
+
+This will cause the @code{target} command to abort. When this happens,
+you should add the appropriate directory to the search path, with the
+_GDBN__ command @code{path}, and execute the @code{target} command
+again.
+
+@node VxWorks download, VxWorks attach, VxWorks connection, VxWorks Remote
+@subsubsection VxWorks Download
+
+@cindex download to VxWorks
+If you have connected to the VxWorks target and you want to debug an
+object that has not yet been loaded, you can use the _GDBN__ @code{load}
+command to download a file from UNIX to VxWorks incrementally. The
+object file given as an argument to the @code{load} command is actually
+opened twice: first by the VxWorks target in order to download the code,
+then by _GDBN__ in order to read the symbol table. This can lead to
+problems if the current working directories on the two systems differ.
+It is simplest to set the working directory on both systems to the
+directory in which the object file resides, and then to reference the
+file by its name, without any path. Thus, to load a program
+@file{prog.o}, residing in @file{wherever/vw/demo/rdb}, on VxWorks type:
+
+@smallexample
+-> cd "wherever/vw/demo/rdb"
+@end smallexample
+
+On _GDBN__ type:
+
+@smallexample
+(_GDBP__) cd wherever/vw/demo/rdb
+(_GDBP__) load prog.o
+@end smallexample
+
+_GDBN__ will display a response similar to the following:
+
+@smallexample
+Reading symbol data from wherever/vw/demo/rdb/prog.o... done.
+@end smallexample
+
+You can also use the @code{load} command to reload an object module
+after editing and recompiling the corresponding source file. Note that
+this will cause _GDBN__ to delete all currently-defined breakpoints,
+auto-displays, and convenience variables, and to clear the value
+history. (This is necessary in order to preserve the integrity of
+debugger data structures that reference the target system's symbol
+table.)
+
+@node VxWorks attach, , VxWorks download, VxWorks Remote
+@subsubsection Running Tasks
+
+@cindex running VxWorks tasks
+You can also attach to an existing task using the @code{attach} command as
+follows:
+
+@smallexample
+(_GDBP__) attach @var{task}
+@end smallexample
+
+where @var{task} is the VxWorks hexadecimal task ID. The task can be running
+or suspended when you attach to it. If running, it will be suspended at
+the time of attachment.
+
+_fi__(_VXWORKS__)
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