Date: Fri, 24 May 2013 10:15:23 +0000 From: "Welcome, Traiano" <welcomet@amazon.com> To: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Writing a (BSD like) Operating Systems From Scratch Message-ID: <8F56C8EF8265DF489B64A19B10910AC7025C53B2@ex10-mbx-14001.ant.amazon.com>
next in thread | raw e-mail | index | archive | help
Hi All I've been read thousands of pages of FreeBSD and Linux Kernel source code a= nd books on the internals of BSD and Linux over the years in attempt to dev= elop a complete understanding of operating systems (or at least, UNIX like = ones). However, I feel that I'm as mystified as to the finer details as whe= n I first started. So I've concluded that the best way to really understand= the deep dark details of UNIX is to try and write one from scratch (using = the general guidelines of standards like POSIX etc ...), and maybe taking a= peek at BSD and Linux from time to time. My questions around this are: a) What kind of hardware (processor) would I use as a development plat= form, given the requirements of cheap, well documented, easily obtainable,= easy to debug etc ... I believe the hardware platform chosen should satisf= y the following requirements: - Cheap and relatively commodity (easy to get hold of) - Well documented architecture and API (there's a nice assembly la= nguage for it) - Supports single and multi-core multi-tasking, memory management b) Are there recommended books or other resources that "hand hold" one= through the process of implementing a "toy operating system" , that are: - Current, circa 2011 - 2013 - For hardware that meets the characteristics of a) above - Offer a simple start from the very basics of operating system de= sign and implementation to the gory details c) What would be the best practical entry point design and implementa= tion of operating systems? E.g should I begin with studying the assembly la= nguage for a chosen hardware platform first, then move on to booting someth= ing of memory, or should I start with the high level architectural details= of the O.S ? Many thanks in Advance for your thoughts! Traiano Welcome
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?8F56C8EF8265DF489B64A19B10910AC7025C53B2>