title: DNA-OS
text: # DNA-OS
  
  DNA-OS is a French-made operating system to supersede MutekA, an obsolete operating system, while still providing POSIX thread API. As said on the SoCLib website, "It is a kernel-mode lightweight operating system for Multiprocessor System on a Chip. It is built on top of a thin HAL to ease porting on new platforms and processor architecture. DNA/OS does not support virtual memory."
  
  DNA-OS is a layered microkernel operating system, written in C99, released under the GNU GPLv3 license.
  
  ## Target hardware / software
  
  * ARM7, ARM9, Cortex A8/A9
  * MIPS
  * Micro Blaze
  * SparcV8
  * NiOS
  
  ## OS flavours
  
  * SMP (Symmetric multiprocessing)
  * DS (Distributed Scheduling)
  
  ## Associated libraries
  
  * Native POSIX Threads
  * Newlibc
  