How To Install gcc-toolset-9-dwz on CentOS 8

gcc-toolset-9-dwz is DWARF optimization and duplicate removal tool

Introduction

In this tutorial we learn how to install gcc-toolset-9-dwz on CentOS 8.

What is gcc-toolset-9-dwz

The dwz package contains a program that attempts to optimize DWARF debugging information contained in ELF shared libraries and ELF executables for size, by replacing DWARF information representation with equivalent smaller representation where possible and by reducing the amount of duplication using techniques from DWARF standard appendix E - creating DW_TAG_partial_unit compilation units (CUs) for duplicated information and using DW_TAG_imported_unit to import it into each CU that needs it.

We can use yum or dnf to install gcc-toolset-9-dwz on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install gcc-toolset-9-dwz.

Install gcc-toolset-9-dwz on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install gcc-toolset-9-dwz using dnf by running the following command:

sudo dnf -y install gcc-toolset-9-dwz

Install gcc-toolset-9-dwz on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install gcc-toolset-9-dwz using yum by running the following command:

sudo yum -y install gcc-toolset-9-dwz

How To Uninstall gcc-toolset-9-dwz on CentOS 8

To uninstall only the gcc-toolset-9-dwz package we can use the following command:

sudo dnf remove gcc-toolset-9-dwz

gcc-toolset-9-dwz Package Contents on CentOS 8

/opt/rh/gcc-toolset-9/root/usr/bin/dwz
/opt/rh/gcc-toolset-9/root/usr/share/doc/gcc-toolset-9-dwz
/opt/rh/gcc-toolset-9/root/usr/share/doc/gcc-toolset-9-dwz/COPYING
/opt/rh/gcc-toolset-9/root/usr/share/doc/gcc-toolset-9-dwz/COPYING.RUNTIME
/opt/rh/gcc-toolset-9/root/usr/share/doc/gcc-toolset-9-dwz/COPYING3
/opt/rh/gcc-toolset-9/root/usr/share/man/man1/dwz.1.gz
/usr/lib/.build-id
/usr/lib/.build-id/29
/usr/lib/.build-id/29/b3f3d4364ab9f428c8ae33b37d1565adcb0148

References

Summary

In this tutorial we learn how to install gcc-toolset-9-dwz on CentOS 8 using yum and dnf.