How To Install lcov on Fedora 34

lcov is LTP GCOV extension code coverage tool

Introduction

In this tutorial we learn how to install lcov on Fedora 34.

What is `lcov`

LCOV is an extension of GCOV, a GNU tool which provides information about what parts of a program are actually executed (i.e. “covered”) while running a particular test case. The extension consists of a set of PERL scripts which build on the textual GCOV output to implement HTML output and support for large projects.

We can use yum or dnf to install lcov on Fedora 34. In this tutorial we discuss both methods but you only need to choose one of method to install lcov.

Install lcov on Fedora 34 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install lcov using dnf by running the following command:

sudo dnf -y install lcov

Install lcov on Fedora 34 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install lcov using yum by running the following command:

sudo yum -y install lcov

How To Uninstall lcov on Fedora 34

To uninstall only the lcov package we can use the following command:

sudo dnf remove lcov

lcov Package Contents on Fedora 34

/etc/lcovrc
/usr/bin/gendesc
/usr/bin/genhtml
/usr/bin/geninfo
/usr/bin/genpng
/usr/bin/lcov
/usr/share/man/man1/gendesc.1.gz
/usr/share/man/man1/genhtml.1.gz
/usr/share/man/man1/geninfo.1.gz
/usr/share/man/man1/genpng.1.gz
/usr/share/man/man1/lcov.1.gz
/usr/share/man/man5/lcovrc.5.gz

References

lcov website

Summary

In this tutorial we learn how to install lcov on Fedora 34 using yum and dnf.