README (1588B)
1 2 This is a port of xv6 to the x86-64 platform (from i386), attempting to 3 be as minimally intrusive as possible (beyond some initial reorganization 4 of the source code layout and build system). 5 6 "xv6 is a re-implementation of Dennis Ritchie's and Ken Thompson's Unix 7 Version 6 (v6). xv6 loosely follows the structure and style of v6, 8 but is implemented for a modern x86-based multiprocessor using ANSI C." 9 10 The original upstream branch (mirror) was pulled from the git repository 11 https://github.com/mit-pdos/xv6-public 12 (previously git://pdos.csail.mit.edu/xv6/xv6.git) 13 14 The original project homepage is here: 15 https://pdos.csail.mit.edu/6.828/2014/xv6.html 16 (previously http://pdos.csail.mit.edu/6.828/2012/xv6.html) 17 18 The PDF books about the rev7 version of xv6 are checked into the books branch 19 of this repository for easy access. They come from the xv6 project's home site. 20 21 The original README remains as README.orig -- renamed to avoid misrepresenting 22 this working branch and any local changes as the original project and to 23 hopefully avoid people pestering the original authors about bugs I may introduce 24 while poking at their code. 25 26 . . . 27 28 The code has been organized into kernel/, include/, user/, ulib/, and tools/ 29 subdirectories, and arranged so that the build puts intermediate object files 30 into kobj/ and uobj/ directories, other intermediates into out/, and the 31 filesystem contents into fs/. 32 33 The Makefile defaults to building the 32bit version of xv6. Define the X64 34 environment variable to build the 64bit version. 35 36 README.64BIT contains notes about the 64bit port.