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2008-10-15 04:57:02 +00:00
web add copyright notice 2008-09-09 11:42:44 +00:00
.cvsignore update .cvsignore 2008-10-15 04:54:24 +00:00
asm.h continuous quality management 2007-08-31 19:55:27 +00:00
bio.c
bootasm.S fix comments 2007-09-15 20:05:47 +00:00
bootmain.c fix comments 2007-09-15 20:05:47 +00:00
bootother.S the old explanation of AP startup might have been correct, but 2008-08-28 00:52:05 +00:00
buf.h
BUGS sh 2007-09-05 15:55:43 +00:00
cat.c
console.c minor cleanup 2008-10-12 20:19:16 +00:00
cuth
defs.h cleaner 2007-09-27 21:02:03 +00:00
dev.h
dot-bochsrc make bochsrc work for bochs 2.2.6 2008-09-03 14:10:47 +00:00
echo.c
elf.h
exec.c oops - broke arg counting 2007-08-30 18:19:52 +00:00
fcntl.h
file.c
file.h
forktest.c
fs.c be clear what the root i-number is 2008-10-08 18:57:13 +00:00
fs.h be clear what the root i-number is 2008-10-08 18:57:13 +00:00
fsvar.h
grep.c
ide.c make new Homework 8 work 2007-08-30 18:21:35 +00:00
init.c
initcode.S
ioapic.c oops - wrong bit (vic zandy) 2007-12-20 18:27:07 +00:00
kalloc.c
kbd.c
kbd.h
kill.c
lapic.c minor cleanup 2008-10-12 20:19:16 +00:00
ln.c
ls.c
LucidaSans-Typewriter83 add nice font 2008-08-20 18:00:24 +00:00
main.c fix obvious printf nits after reading through code 2008-08-21 23:24:02 +00:00
Makefile restore std toolprefix 2008-09-11 10:22:01 +00:00
mkdir.c
mkfs.c be clear what the root i-number is 2008-10-08 18:57:13 +00:00
mmu.h don't call it ss - that's the stack segment 2007-09-27 16:47:50 +00:00
mp.c bda[0xE] is a 16-bit segment number, 2007-11-28 20:17:04 +00:00
mp.h
Notes
param.h
picirq.c
pipe.c clean up circular buffers, so pipe can queue 512 bytes rather than 511 2008-08-22 00:26:22 +00:00
pr.pl
printf.c
proc.c omit *.d from tar file 2008-09-11 10:20:40 +00:00
proc.h Incorporate new understanding of/with Intel SMP spec. 2007-10-01 20:43:15 +00:00
README
rm.c
runoff minor cleanup with STUB macro 2008-10-12 19:54:11 +00:00
runoff.list
runoff.spec
runoff1
sh.c clumsy cd 2007-08-30 18:30:26 +00:00
show1
sign.pl
sleep1.p Model verifying that wakeup really 2007-10-12 04:21:04 +00:00
spinlock.c include explicitly initialized globals (int x = 0;) in cross-refs, 2008-10-12 18:45:30 +00:00
spinlock.h formatting updates 2008-08-20 18:00:13 +00:00
spinp Model verifying that wakeup really 2007-10-12 04:21:04 +00:00
stat.h
string.c
swtch.S yank out stack overflow checking ugliness 2007-09-27 20:38:53 +00:00
symlink.patch symlink implementation 2007-08-30 18:36:38 +00:00
syscall.c
syscall.h
sysfile.c believe it or not, this was working 2007-09-27 05:13:10 +00:00
sysproc.c fork minibug 2007-11-28 20:47:22 +00:00
timer.c formatting updates 2008-08-20 18:00:13 +00:00
toc.ftr
toc.hdr
trap.c check cp->killed before returning to user from a timer interrupt 2008-10-15 04:57:02 +00:00
trapasm.S always save and restore %fs, %gs to ensure old segment entries are never 2008-09-24 01:48:31 +00:00
traps.h
TRICKS fork minibug 2007-11-28 20:47:22 +00:00
types.h
ulib.c
umalloc.c
user.h
usertests.c make slow bigdir last test 2007-09-27 12:29:06 +00:00
usys.S
vectors.pl trap 9 does not push ec: fix from Greg Price <price@mit.edu> 2008-09-24 18:20:56 +00:00
wc.c
x86.h always save and restore %fs, %gs to ensure old segment entries are never 2008-09-24 01:48:31 +00:00
xv6-rev0.tar.gz
xv6-rev1.tar.gz
xv6-rev2.tar.gz restore std toolprefix 2008-09-11 10:22:01 +00:00
xv6.pdf make pdf, ps, tarball 2008-09-03 14:05:52 +00:00
xv6.ps make pdf, ps, tarball 2008-09-03 14:05:52 +00:00
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/6.828/2007/v6.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 (bootother.S, mp.h, mp.c, lapic.c)
    FreeBSD (ioapic.c)
    NetBSD (console.c)

The following people made contributions:
    Russ Cox (context switching, locking)
    Cliff Frey (MP)
    Xiao Yu (MP)

The code in the files that constitute xv6 is
Copyright 2006-2007 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/6.828/2007/tools.html.
Then run "make TOOLPREFIX=i386-jos-elf-".

To run xv6, you can use Bochs or QEMU, both PC simulators.
Bochs makes debugging easier, but QEMU is much faster. 
To run in Bochs, run "make bochs" and then type "c" at the bochs prompt.
To run in QEMU, run "make qemu".  Both log the xv6 screen output to 
standard output.

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