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 7.12

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

News

October 7th, 2016: GDB 7.12 Released!

The latest version of GDB, version 7.12, is available for download.

Changes in this release include:

• New target support: Andes NDS32 (nds32*-*-elf)
• Rust: Debugging programs written in Rust is now supported.
• Fortran: Support structures with fields of dynamic types and arrays of dynamic types.
• Various Python enhancements (new convenience functions, enhanced support for breakpoints).
• Various GDBserver enhancements:
  • btrace recording without maintaining an active GDB connection.
  • tracepoints and fast tracepoints support added on s390-linux, s390x-linux, powerpc64-linux, and powerpc64le-linux.
• Support for the following remote target protocols and ROM monitors has been removed:
  • target m32rsdi (Remote M32R debugging over SDI)
  • target mips (MIPS remote debugging protocol)
  • target pmon (PMON ROM monitor)
  • target ddb (NEC's DDB variant of PMON for Vr4300)
  • target rockhopper (NEC RockHopper variant of PMON)
  • target lsi (LSI variant of PMO)

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

Aug 1st, 2016: GDB 7.12 branch created

The GDB 7.12 branch (gdb-7.12-branch) has been created. To check out a copy of the branch use:

git clone --branch gdb-7.12-branch ssh://sourceware.org/git/binutils-gdb.git

May 31st, 2016: GDB 7.11.1 Released!

The latest version of GDB, version 7.11.1, is available for download.

This is a minor corrective release over GDB 7.11, fixing the following issues:

• PR remote/19863 (7.10 regression: gdb remote.c due to "setfs" with gdbserver < 7.7)
• PR gdb/19829 (gdb crashes with PT and reverse next)
• PR gdb/19676 (gdb fails with assert error if /proc is not mounted)
• PR gdb/19828 (7.11 regression: non-stop gdb -p : internal error)
• PR remote/19840 (gdb crashes on reverse-stepi)
• PR gdb/19858 (GDB doesn't register the JIT libraries on attach)
• PR gdb/19958 (Breakpoints/watchpoints broken on MIPS Linux <= 4.5)
• PR build/20029 (symfile.c ambiguous else warning)
• PR python/20037 (GDB use-after-free error)
• PR gdb/20039 (Using MI/all-stop, can't interrupt multi-threaded program after continue)

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.