mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-28 20:43:45 +08:00
117 lines
4.5 KiB
Groff
117 lines
4.5 KiB
Groff
.\" Copyright (C) 1993, 2011-2012 Free Software Foundation, Inc.
|
|
.\" See section COPYING for conditions for redistribution
|
|
.TH gdbserver 1 "2 November 1993" "Cygnus Support" "GNU Development Tools"
|
|
.SH NAME
|
|
gdbserver \- Remote Server for the GNU Debugger
|
|
.SH SYNOPSIS
|
|
.na
|
|
.TP
|
|
.B gdbserver
|
|
.RB tty
|
|
.RB prog
|
|
.RB "[\|" args... "\|]"
|
|
.PP
|
|
.B gdbserver
|
|
.RB tty
|
|
.B --attach
|
|
.RB PID
|
|
.ad b
|
|
.SH DESCRIPTION
|
|
GDBSERVER is a program that allows you to run GDB on a different machine
|
|
than the one which is running the program being debugged.
|
|
|
|
Usage (server (target) side):
|
|
|
|
First, you need to have a copy of the program you want to debug put onto
|
|
the target system. The program can be stripped to save space if needed, as
|
|
GDBserver doesn't care about symbols. All symbol handling is taken care of by
|
|
the GDB running on the host system.
|
|
|
|
To use the server, you log on to the target system, and run the `gdbserver'
|
|
program. You must tell it (a) how to communicate with GDB, (b) the name of
|
|
your program, and (c) its arguments. The general syntax is:
|
|
|
|
target> gdbserver COMM PROGRAM [ARGS ...]
|
|
|
|
For example, using a serial port, you might say:
|
|
|
|
target> gdbserver /dev/com1 emacs foo.txt
|
|
|
|
This tells gdbserver to debug emacs with an argument of foo.txt, and to
|
|
communicate with GDB via /dev/com1. Gdbserver now waits patiently for the
|
|
host GDB to communicate with it.
|
|
|
|
To use a TCP connection, you could say:
|
|
|
|
target> gdbserver host:2345 emacs foo.txt
|
|
|
|
This says pretty much the same thing as the last example, except that we are
|
|
going to communicate with the host GDB via TCP. The `host:2345' argument means
|
|
that we are expecting to see a TCP connection from `host' to local TCP port
|
|
2345. (Currently, the `host' part is ignored.) You can choose any number you
|
|
want for the port number as long as it does not conflict with any existing TCP
|
|
ports on the target system. This same port number must be used in the host
|
|
GDBs `target remote' command, which will be described shortly. Note that if
|
|
you chose a port number that conflicts with another service, gdbserver will
|
|
print an error message and exit.
|
|
|
|
On some targets, gdbserver can also attach to running programs.
|
|
This is accomplished via the --attach argument. The syntax is:
|
|
|
|
target> gdbserver COMM --attach PID
|
|
|
|
PID is the process ID of a currently running process. It isn't
|
|
necessary to point gdbserver at a binary for the running process.
|
|
|
|
Usage (host side):
|
|
|
|
You need an unstripped copy of the target program on your host system, since
|
|
GDB needs to examine it's symbol tables and such. Start up GDB as you normally
|
|
would, with the target program as the first argument. (You may need to use the
|
|
--baud option if the serial line is running at anything except 9600 baud.)
|
|
Ie: `gdb TARGET-PROG', or `gdb --baud BAUD TARGET-PROG'. After that, the only
|
|
new command you need to know about is `target remote'. It's argument is either
|
|
a device name (usually a serial device, like `/dev/ttyb'), or a HOST:PORT
|
|
descriptor. For example:
|
|
|
|
(gdb) target remote /dev/ttyb
|
|
|
|
communicates with the server via serial line /dev/ttyb, and:
|
|
|
|
(gdb) target remote the-target:2345
|
|
|
|
communicates via a TCP connection to port 2345 on host `the-target', where
|
|
you previously started up gdbserver with the same port number. Note that for
|
|
TCP connections, you must start up gdbserver prior to using the `target remote'
|
|
command, otherwise you may get an error that looks something like
|
|
`Connection refused'.
|
|
.SH OPTIONS
|
|
You have to supply the name of the program to debug
|
|
and the tty to communicate on; the remote GDB will do everything else.
|
|
Any remaining arguments will be passed to the program verbatim.
|
|
.SH "SEE ALSO"
|
|
.RB "`\|" gdb "\|'"
|
|
entry in
|
|
.B info\c
|
|
\&;
|
|
.I
|
|
Using GDB: A Guide to the GNU Source-Level Debugger\c
|
|
, Richard M. Stallman and Roland H. Pesch, July 1991.
|
|
.SH COPYING
|
|
Copyright (c) 1993 Free Software Foundation, Inc.
|
|
.PP
|
|
Permission is granted to make and distribute verbatim copies of
|
|
this manual provided the copyright notice and this permission notice
|
|
are preserved on all copies.
|
|
.PP
|
|
Permission is granted to copy and distribute modified versions of this
|
|
manual under the conditions for verbatim copying, provided that the
|
|
entire resulting derived work is distributed under the terms of a
|
|
permission notice identical to this one.
|
|
.PP
|
|
Permission is granted to copy and distribute translations of this
|
|
manual into another language, under the above conditions for modified
|
|
versions, except that this permission notice may be included in
|
|
translations approved by the Free Software Foundation instead of in
|
|
the original English.
|