1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking Benchmarking Platform
Phoromatic Test Orchestration

Linux x32 Is Made Easier With Ubuntu 13.04

Ubuntu

Published on 25 April 2013 01:54 PM EDT
Written by Michael Larabel in Ubuntu
33 Comments

While there isn't yet a release yet of Ubuntu in the Linux x32 ABI flavor, some packages now found in Ubuntu 13.04 make it easier to setup this binary interface that brings some 64-bit advantages to the 32-bit world.

The Linux x32 implementation is a native 32-bit ABI for Intel/AMD x86_64 systems for software that doesn't need 64-bit pointers but can benefit from features assumed by 64-bit x86 processors. There's been mainline Linux kernel support, GDB debugging support, glibc support, and GCC support.

There's been experiments with Debian x32 and Gentoo x32, but no tier-one Linux distribution has been shipping any official x32 images. The ultimate fate of x32 really isn't known since many are doing just fine using native x86_64 software and this x32 ABI has been slow to come with AMD64 being around now for one decade.

After delivering earlier today the Ubuntu 13.04 x86 vs. x86_64 benchmarks some Phoronix readers have asked about x32 benchmarks. While there isn't any pure x32 release of Ubuntu 13.04, trying out this ABI is much easier.

There's Linux kernel support for x32 and a number of new packages are present in the Ubuntu "Raring" repository for those wishing to migrate to x32. There's x32 packages for libc6 (libc6-x32 and libc6-dev-x32) and GCC packages (libx32gcc1, libx32gcc-4.7-dev, libx32gfortran3, libx32gomp1, etc). These are new x32 support packages not previously found in older Ubuntu release repositories. Aside from the libc6 and GCC support there's various x32 libraries too like GNU readline, libstdc++, compression library, and more.

Basically, the underlying packages to offer x32 support are packaged up and can optionally be installed with Ubuntu 13.04. Previously users could just fetch the sources and build the components themselves, but now it's easier.

With the packages installed, compiling for x32 involves passing the -mx32 flag to GCC. More detailed instructions on configuring a system for the Linux x32 ABI can be found from the Google Site.

In a separate article in the next few days I will work on setting up an Ubuntu x32 system to deliver some long-awaited performance benchmarks in this configuration.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux News
  1. Fedora 22 Is Being Released Next Tuesday
  2. OpenWRT 15.05 Preparing Improved Security & Better Networking
  3. Using The New LLVM/Clang OpenMP Support
  4. Zapcc Claims To Be A "Much Faster C++ Compiler"
  5. Godot 1.1 Engine Release Brings New 2D Engine
  6. Intel VA-API Driver 1.6 Is Coming
  7. Canonical Is Reportedly Considering An IPO
  8. GNOME 3.18 - GTK3 Now Supports RandR 1.5
  9. Fedora 22 Risks Being Delayed Beyond Next Week
  10. Systemd 220 Has Finally Been Released
  11. LibreOffice 5.0 Beta 1 Released
  12. Allwinner Publishes New CedarX Open-Source Code
Latest Articles & Reviews
  1. Btrfs RAID 0/1 Benchmarks On The Linux 4.1 Kernel
  2. The State Of Various Firefox Features
  3. Intel Iris Graphics Performance With Mesa 10.6
  4. Fedora Workstation 22 Is Looking Great, Running Fantastic
Most Viewed News This Week
  1. The Linux 4.0 Kernel Currently Has An EXT4 Corruption Issue
  2. AMDGPU Open-Source Driver Code Continues Maturing
  3. Oculus Rift Suspends Linux Development To Focus On Windows
  4. Microsoft Open-Sources The Windows Communication Foundation
  5. LibreOffice 5.0 Open-Source Office Suite Has Been Branched
  6. Another HTTPS Vulnerability Rattles The Internet
  7. Wayland / Weston 1.8 Release Candidate Arrives
  8. Linux 4.1-rc4 Kernel Arrives A Day Late