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.org

C11 Atomic Support Appears Ready For GCC

Compiler

Published on 05 November 2013 09:46 PM EST
Written by Michael Larabel in Compiler
1 Comment

Joseph Myers of CodeSourcery has proposed a patch based upon a GCC branch to now mainline support for C11 _Atomic in the GNU Compiler Collection.

C11 had finally brought a standardized interface for dealing with fine-grained atomic operations for lock-less concurrent programming. The _Atomic support is one of the big improvements in C11 over C99 in allowing for better multi-threading support for uninterruptive object access. Code for _Atomic in GCC has been baking for a while in a c11-atomic branch, and some atomic operations support landed in GCC 4.7, but now it appears _Atomic is ready for mainline.

Myers wrote in a new mailing list message, "This patch, relative to trunk and based on work done on the C11-atomic branch, adds support for C11 _Atomic. It is intended to include all the required language support." While the language support is there, still to be firmed up is the stdatomic.h header file for mainline. Another shortcoming is that the _Atomic support is disabled for GCC's Objective-C and OpenMP support right now.

For those interested in more details on the proposed GCC _Atomic support for C11, see the aforelinked mailing list message. More details as well can be found via the GCC Wiki. The current GCC C11 status can be found via this Wiki page. The C11 _Atomic support should be hopefully merged soon thus making it a feature in GCC 4.9.

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 Hardware Reviews
  1. Intel Pentium G3258 On Linux
  2. SilverStone Precision PS10
  3. ASRock Z97 Extreme6
  4. Nouveau Re-Clocking Is Way Faster, Shows Much Progress For Open-Source NVIDIA
Latest Linux Articles
  1. KVM Benchmarks On Ubuntu 14.10
  2. X.Org Server 1.16 Officially Released With Terrific Features
  3. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
  4. Preview: Benchmarking CentOS 7.0 & Scientific Linux 7.0
Latest Linux News
  1. Development Continues For Supporting EXT4 On NVDIMMs
  2. Libinput 0.5 Improves Pointer Acceleration, Adds A Configuration API
  3. QEMU 2.1.0-rc3 Has More Bug Fixes
  4. Linux 3.17 To Fix Up ASPM, Bring Other PCI Changes
  5. CPUFreq Ondemand Could Be Faster, Use Less Power With Linux 3.17
  6. Intel Adds BPTC Texture Compression To Their Mesa Driver
  7. The Linux Kernel Bang-Bang Thermal Governor Is Banging
  8. NVIDIA Releases K1-Powered Shield Tablet & Controller
  9. Xen Project Announces Mirage OS 2.0
  10. Canonical Community Team Changes Announced For Ubuntu
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Remote gui not accessible in Phoronix Test Suite 5.2
  3. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
  4. Open-Source Radeon Performance Boosted By Linux 3.16
  5. In Road To Qt, Audacious Switches From GTK3 Back To GTK2
  6. Debian + Steam + r600
  7. Next-Gen OpenGL To Be Announced Next Month
  8. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air