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

There's Interest In Building The Linux Kernel With Clang

Michael Larabel

Published on 5 April 2012
Written by Michael Larabel
Page 1 of 3 - 9 Comments

There's growing interest in being able to build the mainline Linux kernel with the LLVM/Clang compiler as an alternative to the kernel's long-standing love-affair with GCC.

Mark Charlebois and David Kipping of Qualcomm talked this morning at this week's Linux Foundation Collaboration Summit about their interest in LLVM and Clang for the ARM platform, per Qualcomm's obvious interests. Additionally, Mark Charlebois has been working hard at getting the mainline Linux kernel to build under LLVM/Clang for the ARM architecture.

For those that don't remember, in late 2010 there was the original undertaking of using LLVM Clang to build the Linux kernel. When not building all kernel drivers and other components, plus applying some out-of-tree patches, there was success in building a Clang-ified Linux kernel.

Bryce Lelbach was the developer working on making Clang supported by the Linux kernel. At last year's Linux Foundation Collaboration Summit he presented on this work during the LLVM track, but since then there's been really nothing to report on the matter. Building the mainline Linux kernel with a mainline LLVM/Clang compiler is still not possible.

As far as why Qualcomm's Innovation Center is now getting behind LLVM/Clang for the Linux kernel, there's several reasons, among which is they've always been fond towards LLVM. Of the benefits they see for bringing up their ARM Linux kernel on Clang is that there's better diagnostics (error reporting / warnings, catching things GCC doesn't), Clang provides some level of "fix-it hints", and Clang's static analyzer is extremely powerful.

Mark Charlebois also mentioned how Qualcomm likes LLVM's flexibility, targeting all "cores" of ARM SoCs, having one code generator for many different environments, etc. "We want a single compiler toolchain."

Latest Linux News
  1. Macaw-Movies: A KDE Movie Organizing Application
  2. SteamOS 159 Drops Support For NVIDIA's Pre-Fermi Graphics Cards
  3. AMD Radeon R9 290: Linux 4.0 vs. Linux 4.1 Git
  4. Ubuntu 15.10 Will Use The GCC 5 Compiler By Default
  5. A Demo Of Ubuntu's Unity 8 On The Desktop
  6. The Unity 8 Items Being Worked On For The Ubuntu Desktop
  7. Fresh, 5-Way Linux Distribution Benchmarks On Amazon's EC2 Cloud
  8. OpenGL 4.1 Extension Implemented For Intel Mesa Sandy Bridge
  9. Xubuntu Team Announces "Xubuntu Core"
  10. Many Ubuntu Phone Updates Are Coming Up Soon
  11. Nouveau Lands GL_AMD_Performance_Monitor Support
  12. Deb-Based Ubuntu Will Continue To Be Offered For The Foreseeable Future
Latest Articles & Reviews
  1. GeForce GTX 750 Series: Nouveau vs. NVIDIA Linux Driver Performance
  2. GLAMOR + RadeonSI 2D Acceleration Is Quite Good For Open-Source AMD 2D Performance
  3. AMD Radeon R9 290 OpenGL On Ubuntu 15.04: Catalyst vs. RadeonSI Gallium3D
  4. Ubuntu 15.04 Offers Faster OpenGL For AMD Radeon GPUs On Open-Source
Most Viewed News This Week
  1. Trying Out Microsoft Visual Studio Code On Linux
  2. Microsoft Releases New Code IDE For Linux!
  3. A Lot Of Improvements Are Coming For Mir 0.13, Including Work Towards Libinput
  4. Improvements On The Way For GNOME's Nautilus File Manager
  5. Kodi 15.0 Beta 1 Released
  6. Wayland 1.8 Alpha Release Delayed
  7. Mono 4.0 Makes Use Of Microsoft's Open-Source Code, C# 6.0
  8. Lucid Sleep Support Is Being Worked On For The Upstream Linux Kernel