Bash Symbols

Debugging an issue where our preloaded vogl shared object is crashing bash. These are the steps I did to get the bash symbols on Linux Mint 16:

echo "deb http://ddebs.ubuntu.com $(lsb_release -cs) main restricted universe multiverse
deb http://ddebs.ubuntu.com $(lsb_release -cs)-updates main restricted universe multiverse
deb http://ddebs.ubuntu.com $(lsb_release -cs)-security main restricted universe multiverse
deb http://ddebs.ubuntu.com $(lsb_release -cs)-proposed main restricted universe multiverse" | \
sudo tee -a /etc/apt/sources.list.d/ddebs.list

# NOTE: Since I'm on Linux Mint (Petra) I then had to edit ddebs.list and change petra to saucy.

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 428D7C01

wget -q http://ddebs.ubuntu.com/dbgsym-release-key.asc

sudo apt-key add dbgsym-release-key.asc

sudo apt-get update

apt-cache policy bash

# Returns something like this:

> bash:
>   Installed: 4.2-5ubuntu3
>   Candidate: 4.2-5ubuntu3
> ...

sudo apt-get install bash-dbgsym=4.2-5ubuntu3

# Grab the source:

apt-get source bash

cd bash-4.2

# Untar the source (I use atool, feel free to use tar xf or whatever):

atool -x bash-4.2.tar.xz

# Now in gdb (or your .gdbinit) you can point to the bash source. For me:

directory /home/mikesart/src/bash-4.2/bash-4.2

# Here are a couple of good of good links for all this.

https://wiki.ubuntu.com/DebuggingProgramCrash

http://yaapb.wordpress.com/2012/12/28/debugging-your-running-kernel-in-ubuntu/

http://randomascii.wordpress.com/2013/01/08/symbols-on-linux-part-one-g-library-symbols/