How To Install pahole on Ubuntu
Posted on April 1, 2023 (Last modified on May 20, 2023 )
3 minutes • 436 words
Introduction
In this tutorial we learn how to install pahole on Ubuntu.
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. 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
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, 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 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
Dependencies
pahole have the following dependencies:
References
Summary
In this tutorial we learn how to install pahole package on Ubuntu using different package management tools: apt, apt-get and aptitude.