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2016-08-18 14:30:30 -04:00
.cvsignore
.dir-locals.el Setting indent-tabs-mode nil everywhere is dangerous 2011-09-05 15:22:16 -04:00
.gdbinit.tmpl
.gitignore Sync up clean and gitignore better 2011-09-05 15:21:40 -04:00
asm.h
bio.c Disentangle block size from the disk's sector size. Set block size to 1024 to show 2015-04-03 08:22:02 -04:00
bootasm.S nits 2016-08-10 12:06:02 -04:00
bootmain.c Disentangle block size from the disk's sector size. Set block size to 1024 to show 2015-04-03 08:22:02 -04:00
buf.h Disentangle block size from the disk's sector size. Set block size to 1024 to show 2015-04-03 08:22:02 -04:00
BUGS
cat.c
console.c nits 2015-11-15 13:40:42 -05:00
cuth
date.h coding style (per Jeremías Feltan <jeremias.feltan@gmail.com>) 2015-06-30 16:23:56 -04:00
defs.h Removed useless function and prototypes. 2016-08-18 11:09:04 -04:00
dot-bochsrc
echo.c
elf.h Make elf proghdr fields match what objdump prints 2011-08-17 20:23:36 -04:00
entry.S even more explicit that entry.S is linked into kernel, unlike bootasm.S. 2016-08-10 11:22:36 -04:00
entryother.S nits 2016-08-10 12:06:02 -04:00
exec.c a start at concurrent FS system calls 2014-08-27 17:15:30 -04:00
fcntl.h
file.c a start at concurrent FS system calls 2014-08-27 17:15:30 -04:00
file.h Nice layout for a printout of the code 2014-08-29 17:06:49 -04:00
forktest.c
fs.c Pick up where i left off in april: 2015-06-27 12:39:13 -04:00
fs.h Pick up where i left off in april: 2015-06-27 12:39:13 -04:00
gdbutil
grep.c Fix missing NUL-terminator in grep 2015-03-24 20:54:39 -04:00
ide.c Small change to support RWMUL and WRMUL. Now xv6 truly works with a block size 2016-08-18 07:39:03 -04:00
init.c
initcode.S nothing much 2016-08-11 15:41:53 -04:00
ioapic.c
kalloc.c eliminate enter_alloc -- use kalloc for everything 2011-09-13 13:14:52 -04:00
kbd.c
kbd.h
kernel.ld Nuke data.S, since we do have a custom linker script. 2011-09-02 14:51:55 -04:00
kill.c Disentangle block size from the disk's sector size. Set block size to 1024 to show 2015-04-03 08:22:02 -04:00
lapic.c cmosgetdate() for system-call homework 2014-09-12 18:09:51 -04:00
LICENSE
ln.c
log.c Pick up where i left off in april: 2015-06-27 12:39:13 -04:00
ls.c
main.c main comments 2016-08-11 13:55:13 -04:00
Makefile Fixed QEMU command line avoids raw image warning. 2016-08-18 14:30:30 -04:00
memide.c Update memide to reflect recent changes to fs and buf 2015-06-27 13:38:03 -04:00
memlayout.h Fix comments 2015-09-18 23:36:45 +08:00
mkdir.c
mkfs.c Fixed broken build on Arch Linux 2015-08-12 22:11:39 -04:00
mmu.h tiny clarifications to some gdt code. 2016-08-10 10:51:14 -04:00
mp.c Removed useless variable. 2016-08-18 11:25:44 -04:00
mp.h Nice layout for a printout of the code 2014-08-29 17:06:49 -04:00
Notes
param.h check blockno passed to idestart 2015-04-10 07:15:06 -04:00
picirq.c
pipe.c Revert "Introduce and use sleeplocks instead of BUSY flags" 2011-08-29 17:18:40 -04:00
pr.pl
printf.c
printpcs Various fixes and improvements to printpcs 2012-08-24 14:51:52 -04:00
proc.c hold ptable.lock for the entire process creation 2016-08-13 03:44:13 -04:00
proc.h tiny clarifications to some gdt code. 2016-08-10 10:51:14 -04:00
README It will be for 2016 2016-08-18 14:00:48 -04:00
rm.c
runoff no need to generate postscript version 2014-08-29 17:10:32 -04:00
runoff.list Remove data.S from runoff, too 2011-09-02 14:52:53 -04:00
runoff.spec Nice layout for a printout of the code 2014-08-29 17:06:49 -04:00
runoff1 xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
sh.c shell nits 2016-08-08 13:06:38 -04:00
show1
sign.pl
sleep1.p
spinlock.c separate atomic test-and-set from memory barrier. 2016-08-12 07:03:35 -04:00
spinlock.h Revert "Introduce and use sleeplocks instead of BUSY flags" 2011-08-29 17:18:40 -04:00
spinp
stat.h junk 2012-08-28 12:57:05 -04:00
stressfs.c Update stressfs to trigger race now the logging code serializes writes 2011-09-27 12:59:47 -04:00
string.c Use stosl in memset; makes boot time bearable 2011-09-01 10:41:27 -04:00
swtch.S
symlink.patch
syscall.c Remove left-over from some logging plan making complete syscalls atomic 2012-08-22 20:28:58 -04:00
syscall.h Remove left-over from some logging plan making complete syscalls atomic 2012-08-22 20:28:58 -04:00
sysfile.c Remove unused variable, nits. 2016-08-18 11:15:56 -04:00
sysproc.c cmosgetdate() for system-call homework 2014-09-12 18:09:51 -04:00
timer.c
toc.ftr Update index example in TOC footer 2011-09-02 16:30:20 -04:00
toc.hdr
trap.c Map kernel high 2011-07-29 07:31:27 -04:00
trapasm.S One definition of several macros and constants 2011-08-08 13:30:08 -04:00
traps.h
TRICKS use acquire/release to force order for pid=np->pid;np->state=RUNNING 2014-08-04 06:13:49 -04:00
types.h
uart.c
ulib.c make new code like old code 2011-01-11 13:01:13 -05:00
umalloc.c make new code like old code 2011-01-11 13:01:13 -05:00
user.h cmosgetdate() for system-call homework 2014-09-12 18:09:51 -04:00
usertests.c i think this is a working concurrent logging scheme 2014-08-28 05:57:47 -04:00
usys.S
vectors.pl
vm.c nothing much 2016-08-11 15:41:53 -04:00
wc.c junk 2012-08-28 12:57:05 -04:00
x86.h Remove unused x86.h definitions 2011-09-02 14:52:13 -04:00
zombie.c

xv6 is a re-implementation of Dennis Ritchie's and Ken Thompson's Unix
Version 6 (v6).  xv6 loosely follows the structure and style of v6,
but is implemented for a modern x86-based multiprocessor using ANSI C.

ACKNOWLEDGMENTS

xv6 is inspired by John Lions's Commentary on UNIX 6th Edition (Peer
to Peer Communications; ISBN: 1-57398-013-7; 1st edition (June 14,
2000)). See also http://pdos.csail.mit.edu/6.828/2016/xv6.html, which
provides pointers to on-line resources for v6.

xv6 borrows code from the following sources:
    JOS (asm.h, elf.h, mmu.h, bootasm.S, ide.c, console.c, and others)
    Plan 9 (entryother.S, mp.h, mp.c, lapic.c)
    FreeBSD (ioapic.c)
    NetBSD (console.c)

The following people have made contributions:
    Russ Cox (context switching, locking)
    Cliff Frey (MP)
    Xiao Yu (MP)
    Nickolai Zeldovich
    Austin Clements

In addition, we are grateful for the bug reports and patches contributed by
Silas Boyd-Wickizer, Nelson Elhage, Nathaniel Filardo, Peter Froehlich, Yakir
Goaran, Shivam Handa, Bryan Henry, Jim Huang, Anders Kaseorg, kehao95, Eddie
Kohler, Imbar Marinescu, Yandong Mao, Hitoshi Mitake, Carmi Merimovich, Joel
Nider, Greg Price, Ayan Shafqat, Eldar Sehayek, Yongming Shen, Cam Tenny, Rafael
Ubal, Warren Toomey, Stephen Tu, Keiichi Watanabe, Jindong Zhang, and
and Zou Chang Wei.

The code in the files that constitute xv6 is
Copyright 2006-2016 Frans Kaashoek, Robert Morris, and Russ Cox.

ERROR REPORTS

If you spot errors or have suggestions for improvement, please send
email to Frans Kaashoek and Robert Morris (kaashoek,rtm@csail.mit.edu). 

BUILDING AND RUNNING XV6

To build xv6 on an x86 ELF machine (like Linux or FreeBSD), run "make".
On non-x86 or non-ELF machines (like OS X, even on x86), you will
need to install a cross-compiler gcc suite capable of producing x86 ELF
binaries.  See http://pdos.csail.mit.edu/6.828/2014/tools.html.
Then run "make TOOLPREFIX=i386-jos-elf-".

To run xv6, install the QEMU PC simulators.  To run in QEMU, run "make qemu".

To create a typeset version of the code, run "make xv6.pdf".  This
requires the "mpage" utility.  See http://www.mesa.nl/pub/mpage/.