Operating systems in general

anonymous@undisclosed.example.com (Anonymous) — Tue, 01 Sep 2020 08:59:14 +0000

2026/04/13 12:36	current
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	+	====== Operating systems in general ======

	+	===== Difference between Standalone App and OS =====
	+	source SUZAKU SoC Design.pdf
	+
	+	==== Standalone Applications ====
	+	* User application is only program run on uP
	+	* Direct access to all system resources
	+	* Uses C library provided by Xilinx
	+	* Compiled by Xilinx's modified GCC (mb_gcc)
	+	* Fast, simple, only Xilinx toolchain reguired
	+	* Limited function: no server, no IPC, etc.
	+	* User must handle all communications
	+
	+	==== Applications with OS ====
	+
	+	* OS (e.g. uClinux) loaded first into uP
	+	* User application run as a normal program under the OS
	+	* OS and user application all compiled using cross development tools
	+	* Complicated and may have OS everheads
	+	* Feature rich: all you can get from an OS
	+	* User applications access hardware resource throught APIs included in the OS
	+
	+
	+	===== Others operating systems =====
	+	* Lynx OS RTOS http://www.lynuxworks.com/rtos/
	+	* L4 - microkernel http://os.inf.tu-dresden.de/L4/
	+	* uKOS microkernel project http://www.ukos.ch/ukos/Intro.html
	+
	+	===== Distribution =====
	+	* Gentoo http://www.gentoo.org/doc/cs/handbook/

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