How To Install pahole on Ubuntu 22.04
Introduction
In this tutorial we learn how to install pahole
on Ubuntu 22.04.
What is pahole
pahole 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 pahole
on Ubuntu 22.04. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install pahole Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install pahole
using apt-get
by running the following command:
sudo apt-get -y install pahole
Install pahole Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install pahole
using apt
by running the following command:
sudo apt -y install pahole
Install pahole 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 pahole
using aptitude
by running the following command:
sudo aptitude -y install pahole
How To Uninstall pahole on Ubuntu 22.04
To uninstall only the pahole
package we can use the following command:
sudo apt-get remove pahole
Uninstall pahole And Its Dependencies
To uninstall pahole
and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove pahole
Remove pahole Configurations and Data
To remove pahole
configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge pahole
Remove pahole configuration, data, and all of its dependencies
We can use the following command to remove pahole
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge pahole
References
Summary
In this tutorial we learn how to install pahole
package on Ubuntu 22.04 using different package management tools: apt
, apt-get
and aptitude
.