What is GDB?

GDB, the GNU Project debugger, allows you to see what is going on `inside' another program while it executes -- or what another program was doing at the moment it crashed.

GDB can do four main kinds of things (plus other things in support of these) to help you catch bugs in the act:

• Start your program, specifying anything that might affect its behavior.
• Make your program stop on specified conditions.
• Examine what has happened, when your program has stopped.
• Change things in your program, so you can experiment with correcting the effects of one bug and go on to learn about another.

GDB version 7.10.1

An errata list (PROBLEMS) and documentation are also available.

News

December 5th, 2015: GDB 7.10.1 Released!

The latest version of GDB, version 7.10.1, is available for download.

This is a minor corrective release over GDB 7.10, fixing the following issues:

• PR remote/18965 (new vforkdone stop reply should indicate parent process ID)
• PR gdb/18957 (build failure in linux-namespaces.c due to setns static declaration)
• PR gdb/19297 (Internal error on "record btrace": Unexpected branch trace format)
• PR c++/16957 (gdb segfaults when loading symbols in C++11-enabled application)
• PR c++/19306 (Incorrect demangling of symbols with ABI tags)
• PR c++/19307 (Demangler bugs found with fuzz-testing)
• PR c++/19308 (Demangle C++ Transactional Memory TS (N4514) symbols)

August 28th, 2015: GDB 7.10 Released!

The latest version of GDB, version 7.10, is available for download.

Changes in this release include:

• Improved support for accessing shared libraries directly from the target system when debugging remotely.
• Various Guile and Python scripting improvements.
• Record-replay and reverse debugging on Aarch64 Linux.
• Support for fork events on extended-remote Linux targets (Linux kernels 2.5.60 and later).
• DTrace USDT (Userland Static Defined Tracing) probes support on x86_64 GNU/Linux targets.
• Vector ABI support on S/390 GNU/Linux targets.
• GDB now reads the GDBHISTSIZE environment variable rather than HISTSIZE to determine the size of GDB's command history.
• Support for setting the parity when connecting to the target using a serial interface.
• The number of candidates to be considered during completion can now be limited.
• Support for Sun's version of the "stabs" debug file format has been removed.
• Support for HP/PA running HP-UX (hppa*-*-hpux*) has been removed.
• Support for Itanium running HP-UX (ia64-*-hpux*) has been removed.

See the NEWS file for a more complete and detailed list of what this release includes.

July 6th, 2015: GDB 7.10 branch created

The GDB 7.10 branch (gdb-7.10-branch) has been created. To check out a copy of the branch use:

git clone --branch gdb-7.10-branch ssh://sourceware.org/git/binutils-gdb.git

September 30, 2011: Release Mistakes in GDB Versions 6.0 - 7.3

A mistake has been detected in the release tar files for all GDB releases from version 6.0 to version 7.3 (included). The mistake has been corrected, and the FSF issued the following announcements:

• Making up for a release mistake in GDB versions 6.0 - 6.6
• Making up for a release mistake in GDB versions 6.7 - 7.3

Nov 28, 2006: Reversible Debugging

The GDB maintainers are looking for contributors interested in reversible debugging.