Bricoles/xv6-riscv
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146 commits 1 branch 0 tags 23 MiB
C 94.9%
Assembly 2.8%
Makefile 2%
Perl 0.3%
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kaashoek 97c74a3a64 nits
2006-09-03 18:32:58 +00:00
.cvsignore
asm.h remove duplication 2006-09-03 15:39:29 +00:00
bio.c complain if no disk 1 2006-08-30 18:55:06 +00:00
bootasm.S remove duplication 2006-09-03 15:39:29 +00:00
bootmain.c
bootother.S remove duplication 2006-09-03 15:39:29 +00:00
buf.h
cat.c i/o redirection in sh 2006-08-23 01:09:24 +00:00
console.c don't send keyboard interrupts to the second cpu, if we have only one cpu. 2006-09-03 17:34:09 +00:00
defs.h complain if no disk 1 2006-08-30 18:55:06 +00:00
dev.h
dot-bochsrc
echo.c i/o redirection in sh 2006-08-23 01:09:24 +00:00
elf.h centralize credits 2006-09-03 15:10:33 +00:00
fcntl.h
fd.c
fd.h
fs.c complain if no disk 1 2006-08-30 18:55:06 +00:00
fs.h inode addrs[NDIRECT] -> NADDRS 2006-08-25 01:11:30 +00:00
fstests.c clear killed flag in exit 2006-08-29 19:59:52 +00:00
fsvar.h inode addrs[NDIRECT] -> NADDRS 2006-08-25 01:11:30 +00:00
ide.c remove duplication 2006-09-03 15:39:29 +00:00
init.c prune unneeded panics and debug output 2006-08-29 19:06:37 +00:00
ioapic.c nits 2006-09-03 18:32:58 +00:00
ioapic.h
kalloc.c complain if no disk 1 2006-08-30 18:55:06 +00:00
lapic.c centralize credits 2006-09-03 15:10:33 +00:00
lgrind.sty better printout 2006-08-29 17:50:19 +00:00
lgrindef index for printout 2006-09-03 14:38:10 +00:00
ls.c i/o redirection in sh 2006-08-23 01:09:24 +00:00
main.c prune unneeded panics and debug output 2006-08-29 19:06:37 +00:00
Makefile index for printout 2006-09-03 14:38:10 +00:00
mkdir.c
mkfs.c fix writing the indirect block 2006-08-25 01:25:22 +00:00
mmu.h centralize credits 2006-09-03 15:10:33 +00:00
mp.c prune unneeded panics and debug output 2006-08-29 19:06:37 +00:00
mp.h centralize credits 2006-09-03 15:10:33 +00:00
Notes don't send keyboard interrupts to the second cpu, if we have only one cpu. 2006-09-03 17:34:09 +00:00
param.h clean up stale error checks and panics 2006-08-29 14:45:45 +00:00
picirq.c remove duplication 2006-09-03 15:39:29 +00:00
pipe.c
printf.c
proc.c complain if no disk 1 2006-08-30 18:55:06 +00:00
proc.h nits 2006-08-29 21:35:30 +00:00
README centralize credits 2006-09-03 15:10:33 +00:00
rm.c
setjmp.S
sh.c clear killed flag in exit 2006-08-29 19:59:52 +00:00
sign.pl
spinlock.c prune unneeded panics and debug output 2006-08-29 19:06:37 +00:00
spinlock.h clean up stale error checks and panics 2006-08-29 14:45:45 +00:00
stat.h
string.c complain if no disk 1 2006-08-30 18:55:06 +00:00
syscall.c complain if no disk 1 2006-08-30 18:55:06 +00:00
syscall.h i/o redirection in sh 2006-08-23 01:09:24 +00:00
trap.c nits 2006-09-03 18:32:58 +00:00
trapasm.S prune unneeded panics and debug output 2006-08-29 19:06:37 +00:00
traps.h remove duplication 2006-09-03 15:39:29 +00:00
types.h
ulib.c i/o redirection in sh 2006-08-23 01:09:24 +00:00
umalloc.c kill user process when it generates an unhandled trap (e.g., 13) 2006-08-25 00:43:17 +00:00
user.h bug in sbrk 2006-08-24 19:24:36 +00:00
user1.c
userfs.c nits 2006-09-03 18:32:58 +00:00
usertests.c prune unneeded panics and debug output 2006-08-29 19:06:37 +00:00
usys.S i/o redirection in sh 2006-08-23 01:09:24 +00:00
vectors.pl complain if no disk 1 2006-08-30 18:55:06 +00:00
x86.h remove duplication 2006-09-03 15:39:29 +00:00

README 

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

xv6 is inspired by the following work by Lions about Unix version 6:

- Lions' Commentary on UNIX' 6th Edition, John Lions, Peer to Peer
Communications; ISBN: 1-57398-013-7; 1st edition (June 14, 2000). See
also http://pdos.csail.mit.edu/6.828/2006/v6.html, which provides
pointers to on-line resources for v6.

Code was used from the following sources:
    JOS (asm.h, elf.h, mmu.h, bootasm.S, ide.c, and others)
    Plan 9 (bootother.S, mp.h, mp.c, ioapic.h, lapic.c)
    FreeBSD (ioapic.c)

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

If you spot errors or have suggestions for improvement, please send
email to Frans Kaashoek and Robert Morris
({kaashoek,rtm}@csail.mit.edu).  This version is the very first one,
so don't be surprised if there are errors or the code is unclear.