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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.
Chagoya-Garzon, Alexandre; Guérin, Xavier; Rousseau, Frédéric; Pétrot, Frédéric; Rossetti, Davide; Lonardo, Alessandro; Vicini, Piero; Paolucci, Pier Stanislao (June 2009). "Synthesis of Communication Mechanisms for Multi-tile Systems Based on Heterogeneous Multi-processor System-On-Chips". 2009 IEEE/IFIP International Symposium on Rapid System Prototyping. IEEE. pp. 48–54. doi:10.1109/rsp.2009.12. ISBN9780769536903. S2CID38483699.