How To Install dwarves on Ubuntu 20.04
Introduction
In this tutorial we learn how to install dwarves on Ubuntu 20.04.
What is dwarves
dwarves is:
This package contains tools that use the DWARF debugging information inserted in ELF binaries by the compiler. This information is used by debuggers (e.g. GDB), and other tools such as systemtap.
Utilities in the dwarves suite include:
- pahole: finds alignment holes in structs and classes in languages such as C/C++, CPU cacheline alignment. Helps repack those structures to achieve more cache hits.
- codiff: a diff like tool to compare the effects changes in source code generate on the resulting binaries
- pfunct: displays all sorts of information about functions, inlines, etc.
- pdwtags: pretty-prints DWARF information
- pglobal: lists global symbols
- prefcnt: counts DWARF tags usage
- syscse: system call sign extender
- dtagnames: lists tag names
There are three methods to install dwarves on Ubuntu 20.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install dwarves Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install dwarves using apt-get by running the following command:
sudo apt-get -y install dwarves
Install dwarves Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install dwarves using apt by running the following command:
sudo apt -y install dwarves
Install dwarves Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install dwarves using aptitude by running the following command:
sudo aptitude -y install dwarves
How To Uninstall dwarves on Ubuntu 20.04
To uninstall only the dwarves package we can use the following command:
sudo apt-get remove dwarves
Uninstall dwarves And Its Dependencies
To uninstall dwarves and its dependencies that are no longer needed by Ubuntu 20.04, we can use the command below:
sudo apt-get -y autoremove dwarves
Remove dwarves Configurations and Data
To remove dwarves configuration and data from Ubuntu 20.04 we can use the following command:
sudo apt-get -y purge dwarves
Remove dwarves configuration, data, and all of its dependencies
We can use the following command to remove dwarves configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge dwarves
References
Summary
In this tutorial we learn how to install dwarves package on Ubuntu 20.04 using different package management tools: apt, apt-get and aptitude.
