Gdbserver: Difference between revisions

Revision as of 19:42, 26 November 2010

Revision as of 21:50, 26 December 2010

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{{compu-prog-stub|date=February 2010}}

'''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{{Clarify|date=June 2010}} needs to be resident on the target system, while the source code{{Clarify|date=June 2010}} and a copy of the binary file{{Clarify|date=June 2010}} reside on the developer’s local computer.

== How It Works ==

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

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

#* A port number (TCP or UDP).

#:It then listens for connections on the port.

# <code>gdb</code> is run on the host, with the arguments:

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== Alternatives ==

Another technique for debugging programs remotely is to use a ''remote stub''.<ref>[http://davis.lbl.gov/Manuals/GDB/gdb_17.html#SEC140 Debugging with GDB]</ref>.{{Clarify|date=February 2010}}

In this case, the program to be debugged is linked with a few special-purpose subroutines that implement the GDB remote serial protocol. The file containing these subroutines is called a debugging stub.