Update in 2013-05-26

There are gdb-release that is the last release version of GDB for KGTP http://code.google.com/p/kgtp/'>http://code.google.com/p/kgtp/.
The exec filename that is installed will be "gdb-release". So it will not affect the GDB of current system.
"gdb-release"is the last release version of GDB (current is 7.6.0.20130510-cvs).

Get from Ubuntu PPA

If you use Ubuntu Lucid (10.04) or later version, you can add PPA source to your system and install gdb-release package directly.

Running the following line at a terminal:

sudo add-apt-repository ppa:teawater/gdbt


sudo apt-get update


sudo apt-get install gdb-release

Now you can use gdb-release directly

gdb-release

Following link will tell you more info about it:
https://launchpad.net/~teawater/+archive/gdbt'>https://launchpad.net/~teawater/+archive/gdbt
GDB for KGTP

Get from openSUSE Build Service (Support CentOS, Fedora, Mandriva, RHEL, SLE, openSUSE)

Goto http://download.opensuse.org/repositories/home:/teawater/'>http://download.opensuse.org/repositories/home:/teawater/ get repo file of your distribution and put it into the directory /etc/yum.repos.d.
Running the following line at a terminal:

sudo yum install gdb-release

Now you can use gdb-release directly

gdb-release

Get binary

You can download GDB binary and use it directly.

Static build binary without python support

This GDB is built in static so you don't need worry about library.
Because libpython have trouble with static build, so it doesn't support python. http://docs.python.org/extending/embedding.html#linking-requirements'>http://docs.python.org/extending/embedding.html#linking-requirements

x86_64

#Download package


wget http://gdbt.googlecode.com/files/gdb-release-static-x86_64-without-python.tar.bz2


wget http://gdbt.googlecode.com/files/gdb-release-static-x86_64-without-python.md5


#Do check before use it


md5sum -c gdb-release-static-x86_64-without-python.md5 


gdb-release-static-x86_64-without-python.tar.bz2: OK


#Uncompress the package


tar vxjf gdb-release-static-x86_64-without-python.tar.bz2


#Now you can use gdb-release directly


gdb-release-static/gdb

i386

#Download package


wget http://gdbt.googlecode.com/files/gdb-release-static-i386-without-python.tar.bz2


wget http://gdbt.googlecode.com/files/gdb-release-static-i386-without-python.md5


#Do check before use it


md5sum -c gdb-release-static-i386-without-python.md5 


gdb-release-static-i386-without-python.tar.bz2: OK


#Uncompress the package


tar vxjf gdb-release-static-i386-without-python.tar.bz2


#Now you can use gdb-release directly


gdb-release-static/gdb

Get from source code

Step one: get the source

Get source from git

For Ubuntu:

sudo apt-get install git

For Fedora:

sudo yum install git

For gdb-release

git clone -b gdb_7_6-branch git://sourceware.org/git/gdb.git gdb-release

Download

If you don't want to use git, you can download it.

wget http://ftp.gnu.org/gnu/gdb/gdb-7.6.tar.bz2


tar vxjf gdb-7.6.tar.bz2


mv gdb-7.6 gdb-release

Step two: install the packages that build GDB need

You need install gcc, texinfo, m4, flex, bison, ncurses-devel, expat-devel, python-devel


You can use following install these packages in Ubuntu:

sudo apt-get install gcc texinfo m4 flex bison libncurses5-dev libexpat1-dev python-dev

You can use following install these packages in Fedora:

sudo yum install gcc texinfo m4 flex bison ncurses-devel expat-devel python-devel

Step three: build and install

For gdb-release

mkdir bgdbr


cd bgdbr


CFLAGS="-g -O2" CXXFLAGS="-g -O2 -Wall"                                    \


../gdb-release/configure                                                   \


--disable-gdbtk --disable-shared --with-system-gdbinit=/etc/gdb/gdbinit    \


--enable-tui --with-expat --with-python                                    \


--program-suffix="-release"                                                \


--enable-targets=x86_64-linux,arm-linux,mips-linux --enable-64-bit-bfd     \


--with-gdb-datadir="\${prefix}/share/gdb-release"


CFLAGS="-g -O2" CXXFLAGS="-g -O2 -Wall" make all


sudo make install


#Now you can use gdb-release directly


gdb-release