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1 perry 1 gdbserver
2 !!!gdbserver
3 NAME
4 SYNOPSIS
5 DESCRIPTION
6 OPTIONS
7 SEE ALSO
8 COPYING
9 ----
10 !!NAME
11
12
13 gdbserver - Remote Server for the GNU Debugger
14 !!SYNOPSIS
15
16
17 __gdbserver__
18
19
20 tty prog [[__args...__]
21
22
23 __gdbserver__ tty __--attach__ PID
24 !!DESCRIPTION
25
26
27 GDBSERVER is a program that allows you to run GDB on a
28 different machine than the one which is running the program
29 being debugged.
30
31
32 Usage (server (target) side):
33
34
35 First, you need to have a copy of the program you want to
36 debug put onto the target system. The program can be
37 stripped to save space if needed, as GDBserver doesn't care
38 about symbols. All symbol handling is taken care of by the
39 GDB running on the host system.
40
41
42 To use the server, you log on to the target system, and run
43 the `gdbserver' program. You must tell it (a) how to
44 communicate with GDB, (b) the name of your program, and (c)
45 its arguments. The general syntax is:
46
47
48 target
49
50
51 For example, using a serial port, you might
52 say:
53
54
55 target
56
57
58 This tells gdbserver to debug emacs with an argument of
59 foo.txt, and to communicate with GDB via /dev/com1.
60 Gdbserver now waits patiently for the host GDB to
61 communicate with it.
62
63
64 To use a TCP connection, you could say:
65
66
67 target
68
69
70 This says pretty much the same thing as the last example,
71 except that we are going to communicate with the host GDB
72 via TCP. The `host:2345' argument means that we are
73 expecting to see a TCP connection from `host' to local TCP
74 port 2345. (Currently, the `host' part is ignored.) You can
75 choose any number you want for the port number as long as it
76 does not conflict with any existing TCP ports on the target
77 system. This same port number must be used in the host GDBs
78 `target remote' command, which will be described shortly.
79 Note that if you chose a port number that conflicts with
80 another service, gdbserver will print an error message and
81 exit.
82
83
84 On some targets, gdbserver can also attach to running
85 programs. This is accomplished via the --attach argument.
86 The syntax is:
87
88
89 target
90
91
92 PID is the process ID of a currently running process. It
93 isn't necessary to point gdbserver at a binary for the
94 running process.
95
96
97 Usage (host side):
98
99
100 You need an unstripped copy of the target program on your
101 host system, since GDB needs to examine it's symbol tables
102 and such. Start up GDB as you normally would, with the
103 target program as the first argument. (You may need to use
104 the --baud option if the serial line is running at anything
105 except 9600 baud.) Ie: `gdb TARGET-PROG', or `gdb --baud
106 BAUD TARGET-PROG'. After that, the only new command you need
107 to know about is `target remote'. It's argument is either a
108 device name (usually a serial device, like `/dev/ttyb'), or
109 a HOST:PORT descriptor. For example:
110
111
112 (gdb) target remote /dev/ttyb
113
114
115 communicates with the server via serial line /dev/ttyb,
116 and:
117
118
119 (gdb) target remote the-target:2345
120
121
122 communicates via a TCP connection to port 2345 on host
123 `the-target', where you previously started up gdbserver with
124 the same port number. Note that for TCP connections, you
125 must start up gdbserver prior to using the `target remote'
126 command, otherwise you may get an error that looks something
127 like `Connection refused'.
128 !!OPTIONS
129
130
131 You have to supply the name of the program to debug and the
132 tty to communicate on; the remote GDB will do everything
133 else. Any remaining arguments will be passed to the program
134 verbatim.
135 !!SEE ALSO
136
137
138 `__gdb__' entry in __info__; ''Using GDB: A Guide to
139 the GNU Source-Level Debugger'', Richard M. Stallman and
140 Roland H. Pesch, July 1991.
141 !!COPYING
142
143
144 Copyright (c) 1993 Free Software Foundation,
145 Inc.
146
147
148 Permission is granted to make and distribute verbatim copies
149 of this manual provided the copyright notice and this
150 permission notice are preserved on all copies.
151
152
153 Permission is granted to copy and distribute modified
154 versions of this manual under the conditions for verbatim
155 copying, provided that the entire resulting derived work is
156 distributed under the terms of a permission notice identical
157 to this one.
158
159
160 Permission is granted to copy and distribute translations of
161 this manual into another language, under the above
162 conditions for modified versions, except that this
163 permission notice may be included in translations approved
164 by the Free Software Foundation instead of in the original
165 English.
166 ----
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