No description
Find a file
Nickolai Zeldovich 96b7da5f03 do not run past the end of the disk!
[ cherry-picked de6075ff0978108daea1d658425bcb37663a98a0 ]

Conflicts:

	fs.c
2011-06-24 05:26:57 -04:00
web web: rev5 2011-02-19 21:21:49 -05:00
.cvsignore
.gdbinit.tmpl Use the symbol file 2009-09-20 23:08:36 -04:00
.gitignore Russ's fix for panic remap 2011-04-28 08:01:36 -04:00
asm.h add some comments 2010-08-05 21:16:55 -04:00
bio.c a few nits 2010-07-23 12:52:50 -04:00
bootasm.S xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
bootmain.c make new code like old code 2011-01-11 13:01:13 -05:00
bootother.S xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
buf.h
BUGS
cat.c
console.c fixes from Peter Froehlich 2011-02-28 09:32:20 -05:00
cuth
data.S Russ's fix for panic remap 2011-04-28 08:01:36 -04:00
defs.h more trivial cleanup 2011-01-11 13:51:40 -05:00
dot-bochsrc
echo.c
elf.h shuffle and tweak for formatting. 2009-08-08 01:07:30 -07:00
exec.c xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
fcntl.h
file.c Initial version of single-cpu xv6 with page tables 2010-07-02 14:51:53 -04:00
file.h shuffle and tweak for formatting. 2009-08-08 01:07:30 -07:00
forktest.c Initial version of single-cpu xv6 with page tables 2010-07-02 14:51:53 -04:00
fs.c do not run past the end of the disk! 2011-06-24 05:26:57 -04:00
fs.h xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
gdbutil GDB utilities 2009-11-23 17:47:57 -05:00
grep.c
ide.c xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
init.c
initcode.S
ioapic.c
kalloc.c more trivial cleanup 2011-01-11 13:51:40 -05:00
kbd.c
kbd.h
kill.c
lapic.c kill TLB shoot down code 2010-07-28 14:38:05 -04:00
LICENSE
ln.c
ls.c
LucidaSans-Typewriter83
main.c xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
Makefile xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
memide.c missing file memide.c 2011-01-11 13:54:23 -05:00
mkdir.c
mkfs.c fixes from Peter Froehlich 2011-02-28 09:32:20 -05:00
mmu.h make new code like old code 2011-01-11 13:01:13 -05:00
mp.c xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
mp.h
multiboot.S multiboot support and memory-only (no disk) kernel 2011-01-11 13:27:45 -05:00
Notes
param.h copyout() copies data to a va in a pagetable, for exec() &c 2010-09-27 16:14:33 -04:00
picirq.c Get rid of the blank page in picirq.c. It misaligs things now. 2010-09-02 18:36:06 -04:00
pipe.c make new code like old code 2011-01-11 13:01:13 -05:00
pr.pl remove //DOC in the right place 2009-07-12 19:07:30 -07:00
printf.c
proc.c xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
proc.h change some comments, maybe more informative 2010-09-13 15:34:44 -04:00
README Add Nickolai and myself and scrunch two lines out of the text elsewhere 2010-09-02 03:25:33 -04:00
rm.c
runoff Remove unused nop_pause function. 2010-09-02 14:08:45 -04:00
runoff.list xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
runoff.spec xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
runoff1 xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
sh.c move jkstack to main.c 2010-08-05 14:15:03 -04:00
show1
sign.pl
sleep1.p
spinlock.c make new code like old code 2011-01-11 13:01:13 -05:00
spinlock.h assorted fixes: 2009-08-30 23:02:08 -07:00
spinp
stat.h
stressfs.c make new code like old code 2011-01-11 13:01:13 -05:00
string.c Remove memcpy prototypes at Russ' request to prevent code from calling 2009-10-07 13:06:55 -04:00
swtch.S move jkstack to main.c 2010-08-05 14:15:03 -04:00
symlink.patch
syscall.c fixes from Peter Froehlich 2011-02-28 09:32:20 -05:00
syscall.h uptime() sys call for benchmarking 2010-08-11 14:34:45 -04:00
sysfile.c make new code like old code 2011-01-11 13:01:13 -05:00
sysproc.c uptime() sys call for benchmarking 2010-08-11 14:34:45 -04:00
timer.c shuffle and tweak for formatting. 2009-08-08 01:07:30 -07:00
toc.ftr xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
toc.hdr
trap.c xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
trapasm.S
traps.h kill TLB shoot down code 2010-07-28 14:38:05 -04:00
TRICKS more doc tweaks 2009-07-12 18:33:37 -07:00
types.h some cleanup 2010-07-25 20:30:21 -04:00
uart.c shuffle and tweak for formatting. 2009-08-08 01:07:30 -07:00
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 make new code like old code 2011-01-11 13:01:13 -05:00
usertests.c xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
usys.S uptime() sys call for benchmarking 2010-08-11 14:34:45 -04:00
vectors.pl
vm.c xv6: formatting, cleanup, rev5 (take 2) 2011-02-19 21:17:55 -05:00
wc.c
x86.h Remove unused nop_pause function. 2010-09-02 14:08:45 -04:00
xv6-rev0.tar.gz
xv6-rev1.tar.gz
xv6-rev2.tar.gz
xv6-rev3.tar.gz add .gdbinit.tmpl to dist 2009-09-15 19:15:59 -04:00
xv6-rev4.tar.gz Rev 4 2010-09-03 15:47:28 -04:00
xv6-rev5.pdf xv6: formatting, cleanup, rev5 2011-02-19 21:16:54 -05:00
xv6-rev5.tar.gz rebuild xv6-rev5.tar.gz 2011-02-28 09:32:54 -05:00
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)
    Nickolai Zeldovich
    Austin Clements

In addition, we are grateful for the patches contributed by Greg
Price, Yandong Mao, and Hitoshi Mitake.

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".

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