Gdbserver: Difference between revisions

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{{Short description|Remote debugging program}}

{{lowercase|title=gdbserver}}

'''gdbserver''' is a computer program that makes it possible to remotely [[Debugging|debug]] other programs.<ref>[http://ftp.gnu.org/old-gnu/Manuals/gdb-5.1.1/html_node/gdb_130.html GDB Manual]</ref> Running on the same system as the program to be debugged, it allows the [[GNU Debugger]] to connect from another system; that is, only the executable to be debugged needs to be resident on the target system ("target"), while the source code and a copy of the binary file to be debugged reside on the developer’sdeveloper's local computer ("host"). The connection can be either TCP or a serial line.

== How it works ==

# <code>gdbserver</code> is launched on the target system, with the arguments:

#* Either a device name (to use a serial line) or a TCP hostname and portnumberport number, and

#* The path and filename of the executable to be debugged

#:It then waits passively for the host gdb to communicate with it.

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#* A device name (for a serial line) or the IP address and port number needed for connection to the target system.

Example for debugging a program called <code>hello_world</code> on a remote target using TCP ("2159" is the [[List_of_TCP_and_UDP_port_numbersList of TCP and UDP port numbers#Registered_portsRegistered ports|registered TCP port number for remote GDB]]):

<syntaxhighlight lang="console">

remote@~$ gdbserver :2159 hello_world