BareMetal

For other uses, see Bare metal (disambiguation).
BareMetal
Developer Return Infinity
Written in Assembly
Working state Current
Source model Open source
Initial release 2008
Latest release 0.6.0 / April 30, 2013
Marketing target HPCs, HTC, Cloud computing
Available in English
Platforms x86-64
Kernel type Exokernel, SASOS
Userland Unknown
Default user interface Command-line
License BSD License[1]
Official website www.returninfinity.com/baremetal.html

BareMetal is an exokernel-based single address space operating system (OS) created by Return Infinity.

It's written in assembly to achieve high-performance computing with minimal footprint[2][3] with a JeOS approach,[4] like in virtualized environments for cloud computing, or like a Lightweight Kernel (LWK) approach, for HPCs.

It was inspired by another OS written in assembly, MikeOS,[1] and it's a current-day example of an operating system that is not written in C or C++, nor based on Unix-like kernels.[5]

Hardware requirements[6]

One task per core

BareMetal multitasking is unusual for current OSes: it uses an internal work queue that all CPU cores poll. A task added to the work queue will be processed by any available CPU core in the system and will execute until completion (no context switch overhead).[7]

C standard library

BareMetal OS has a build script to pull the latest code, make the needed changes, and then compile[8] the Newlib C standard library.[9]

C++ standard library

An C++-11 (almost) Standard Library was designed and developed for working in ring 0.[10] The main goal of such library is providing, on a library level, an alternative to hardware memory protection used in classical OSes, with help of carefully designed classes.[11]

TCP/IP stack

A TCP/IP stack was the #1 feature request.[12] A port of lwIP was finally announced in October 2014.[13]

References

  1. ↑ 1.0 1.1 Voorsanger, Conrad (June 2, 2011). "Interview With Baremetal OS' Ian Seyler". OSNews. Retrieved May 26, 2014.
  2. ↑ Adams, David (July 14, 2010). "BareMetal OS". OSNews. Retrieved May 26, 2014.
  3. ↑ Benchoff, Brian (May 27, 2011). "64-bit OS written entirely in assembly". Hack A Day. Retrieved May 26, 2014.
  4. ↑ Seyler, Ian. "Return Infinity (home page), The BareMetal advantage". Return Infinity. Retrieved February 2, 2015.
  5. ↑ Smith, Jesse (July 19, 2010). "DistroWatch Weekly, Issue 363". DistroWatch. Retrieved May 26, 2014.
  6. ↑ "BareMetal OS Requirements". Return Infinity (archived copy at Wayback Machine). Retrieved September 6, 2014.
  7. ↑ "BareMetal OS Queue". Retrieved April 28, 2015.
  8. ↑ Seyler, Ian (January 17, 2014). "Newlib build script". BeareMetal OS Google Group. Retrieved February 2, 2015.
  9. ↑ Seyler, Ian. "newlib.sh". Build scripts for BareMetal OS and its related utilities, GitHub repository. Retrieved February 2, 2015.
  10. ↑ Lodyagin, Sergei (November 17, 2013). "Bare C++ library". BeareMetal OS Google Group. Retrieved February 2, 2015.
  11. ↑ Lodyagin, Sergei. "The Bare C++ library". The Bare C++ library GitHub repository. Retrieved February 2, 2015.
  12. ↑ Seyler, Ian (August 22, 2013). "TCP/IP". BeareMetal OS Google Group. Retrieved February 2, 2015.
  13. ↑ Seyler, Ian (October 31, 2014). "BareMetal and lwIP". BeareMetal OS Google Group. Retrieved February 2, 2015.

External links